Merge tag 'wireless-drivers-for-davem-2015-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
ath9k:
* fix device ID check for AR956x
iwlwifi:
* bug fixes specific for 8000 series
* fix a crash in time events
* fix a crash in PCIe transport
* fix BT Coex code that prevented association on certain
devices (3160).
* revert the new RBD allocation model because it introduced
a bug when running on weak VM setups.
* new device IDs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README
index 1fe2d7f..5e38e15 100644
--- a/Documentation/arm/sunxi/README
+++ b/Documentation/arm/sunxi/README
@@ -36,7 +36,7 @@
+ User Manual
http://dl.linux-sunxi.org/A20/A20%20User%20Manual%202013-03-22.pdf
- - Allwinner A23
+ - Allwinner A23 (sun8i)
+ Datasheet
http://dl.linux-sunxi.org/A23/A23%20Datasheet%20V1.0%2020130830.pdf
+ User Manual
@@ -55,7 +55,23 @@
+ User Manual
http://dl.linux-sunxi.org/A31/A3x_release_document/A31s/IC/A31s%20User%20Manual%20%20V1.0%2020130322.pdf
+ - Allwinner A33 (sun8i)
+ + Datasheet
+ http://dl.linux-sunxi.org/A33/A33%20Datasheet%20release%201.1.pdf
+ + User Manual
+ http://dl.linux-sunxi.org/A33/A33%20user%20manual%20release%201.1.pdf
+
+ - Allwinner H3 (sun8i)
+ + Datasheet
+ http://dl.linux-sunxi.org/H3/Allwinner_H3_Datasheet_V1.0.pdf
+
* Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs
- Allwinner A80
+ Datasheet
http://dl.linux-sunxi.org/A80/A80_Datasheet_Revision_1.0_0404.pdf
+
+ * Octa ARM Cortex-A7 based SoCs
+ - Allwinner A83T
+ + Not Supported
+ + Datasheet
+ http://dl.linux-sunxi.org/A83T/A83T_datasheet_Revision_1.1.pdf
diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt
index 42941fd..67da205 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.txt
+++ b/Documentation/devicetree/bindings/arm/sunxi.txt
@@ -9,4 +9,6 @@
allwinner,sun6i-a31
allwinner,sun7i-a20
allwinner,sun8i-a23
+ allwinner,sun8i-a33
+ allwinner,sun8i-h3
allwinner,sun9i-a80
diff --git a/Documentation/devicetree/bindings/hwlock/hwlock.txt b/Documentation/devicetree/bindings/hwlock/hwlock.txt
new file mode 100644
index 0000000..085d1f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/hwlock.txt
@@ -0,0 +1,59 @@
+Generic hwlock bindings
+=======================
+
+Generic bindings that are common to all the hwlock platform specific driver
+implementations.
+
+Please also look through the individual platform specific hwlock binding
+documentations for identifying any additional properties specific to that
+platform.
+
+hwlock providers:
+=================
+
+Required properties:
+- #hwlock-cells: Specifies the number of cells needed to represent a
+ specific lock.
+
+hwlock users:
+=============
+
+Consumers that require specific hwlock(s) should specify them using the
+property "hwlocks", and an optional "hwlock-names" property.
+
+Required properties:
+- hwlocks: List of phandle to a hwlock provider node and an
+ associated hwlock args specifier as indicated by
+ #hwlock-cells. The list can have just a single hwlock
+ or multiple hwlocks, with each hwlock represented by
+ a phandle and a corresponding args specifier.
+
+Optional properties:
+- hwlock-names: List of hwlock name strings defined in the same order
+ as the hwlocks, with one name per hwlock. Consumers can
+ use the hwlock-names to match and get a specific hwlock.
+
+
+1. Example of a node using a single specific hwlock:
+
+The following example has a node requesting a hwlock in the bank defined by
+the node hwlock1. hwlock1 is a hwlock provider with an argument specifier
+of length 1.
+
+ node {
+ ...
+ hwlocks = <&hwlock1 2>;
+ ...
+ };
+
+2. Example of a node using multiple specific hwlocks:
+
+The following example has a node requesting two hwlocks, a hwlock within
+the hwlock device node 'hwlock1' with #hwlock-cells value of 1, and another
+hwlock within the hwlock device node 'hwlock2' with #hwlock-cells value of 2.
+
+ node {
+ ...
+ hwlocks = <&hwlock1 2>, <&hwlock2 0 3>;
+ ...
+ };
diff --git a/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
new file mode 100644
index 0000000..2c9804f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
@@ -0,0 +1,26 @@
+OMAP4+ HwSpinlock Driver
+========================
+
+Required properties:
+- compatible: Should be "ti,omap4-hwspinlock" for
+ OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
+- reg: Contains the hwspinlock module register address space
+ (base address and length)
+- ti,hwmods: Name of the hwmod associated with the hwspinlock device
+- #hwlock-cells: Should be 1. The OMAP hwspinlock users will use a
+ 0-indexed relative hwlock number as the argument
+ specifier value for requesting a specific hwspinlock
+ within a hwspinlock bank.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example:
+
+/* OMAP4 */
+hwspinlock: spinlock@4a0f6000 {
+ compatible = "ti,omap4-hwspinlock";
+ reg = <0x4a0f6000 0x1000>;
+ ti,hwmods = "spinlock";
+ #hwlock-cells = <1>;
+};
diff --git a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.txt
new file mode 100644
index 0000000..4563f52
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.txt
@@ -0,0 +1,39 @@
+Qualcomm Hardware Mutex Block:
+
+The hardware block provides mutexes utilized between different processors on
+the SoC as part of the communication protocol used by these processors.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,sfpb-mutex",
+ "qcom,tcsr-mutex"
+
+- syscon:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: one cell containing:
+ syscon phandle
+ offset of the hwmutex block within the syscon
+ stride of the hwmutex registers
+
+- #hwlock-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 1, the specified cell represent the lock id
+ (hwlock standard property, see hwlock.txt)
+
+Example:
+
+ tcsr_mutex_block: syscon@fd484000 {
+ compatible = "syscon";
+ reg = <0xfd484000 0x2000>;
+ };
+
+ hwlock@fd484000 {
+ compatible = "qcom,tcsr-mutex";
+ syscon = <&tcsr_mutex_block 0 0x80>;
+
+ #hwlock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
new file mode 100644
index 0000000..9bb1240a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
@@ -0,0 +1,28 @@
+SIRF Hardware spinlock device Binding
+-----------------------------------------------
+
+Required properties :
+- compatible : shall contain only one of the following:
+ "sirf,hwspinlock"
+
+- reg : the register address of hwspinlock
+
+- #hwlock-cells : hwlock users only use the hwlock id to represent a specific
+ hwlock, so the number of cells should be <1> here.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example of hwlock provider:
+ hwlock {
+ compatible = "sirf,hwspinlock";
+ reg = <0x13240000 0x00010000>;
+ #hwlock-cells = <1>;
+ };
+
+Example of hwlock users:
+ node {
+ ...
+ hwlocks = <&hwlock 2>;
+ ...
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
index 938f8e1..0db6047 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
@@ -8,6 +8,7 @@
Required properties:
- compatible : Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
is the IP revision of the specific EMIF instance.
+ For am437x should be ti,emif-am4372.
- phy-type : <u32> indicating the DDR phy type. Following are the
allowed values
diff --git a/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt
new file mode 100644
index 0000000..3a70073
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt
@@ -0,0 +1,52 @@
+TI Wakeup M3 Remoteproc Driver
+==============================
+
+The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor
+(commonly referred to as Wakeup M3 or CM3) to help with various low power tasks
+that cannot be controlled from the MPU. This CM3 processor requires a firmware
+binary to accomplish this. The wkup_m3 remoteproc driver handles the loading of
+the firmware and booting of the CM3.
+
+Wkup M3 Device Node:
+====================
+A wkup_m3 device node is used to represent the Wakeup M3 processor instance
+within the SoC. It is added as a child node of the parent interconnect bus
+(l4_wkup) through which it is accessible to the MPU.
+
+Required properties:
+--------------------
+- compatible: Should be one of,
+ "ti,am3352-wkup-m3" for AM33xx SoCs
+ "ti,am4372-wkup-m3" for AM43xx SoCs
+- reg: Should contain the address ranges for the two internal
+ memory regions, UMEM and DMEM. The parent node should
+ provide an appropriate ranges property for properly
+ translating these into bus addresses.
+- reg-names: Contains the corresponding names for the two memory
+ regions. These should be named "umem" & "dmem".
+- ti,hwmods: Name of the hwmod associated with the wkupm3 device.
+- ti,pm-firmware: Name of firmware file to be used for loading and
+ booting the wkup_m3 remote processor.
+
+Example:
+--------
+/* AM33xx */
+ocp {
+ l4_wkup: l4_wkup@44c00000 {
+ compatible = "am335-l4-wkup", "simple-bus";
+ ranges = <0 0x44c00000 0x400000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ wkup_m3: wkup_m3@100000 {
+ compatible = "ti,am3352-wkup-m3";
+ reg = <0x100000 0x4000>,
+ <0x180000 0x2000>;
+ reg-names = "umem", "dmem";
+ ti,hwmods = "wkup_m3";
+ ti,pm-firmware = "am335x-pm-firmware.elf";
+ };
+ };
+
+ ...
+};
diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
index 1be8d7a..5883b73 100644
--- a/Documentation/devicetree/bindings/usb/atmel-usb.txt
+++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt
@@ -79,9 +79,9 @@
Required properties:
- compatible: Should be one of the following
- "at91sam9rl-udc"
- "at91sam9g45-udc"
- "sama5d3-udc"
+ "atmel,at91sam9rl-udc"
+ "atmel,at91sam9g45-udc"
+ "atmel,sama5d3-udc"
- reg: Address and length of the register set for the device
- interrupts: Should contain usba interrupt
- clocks: Should reference the peripheral and host clocks
diff --git a/Documentation/filesystems/caching/backend-api.txt b/Documentation/filesystems/caching/backend-api.txt
index 277d1e8..c0bd567 100644
--- a/Documentation/filesystems/caching/backend-api.txt
+++ b/Documentation/filesystems/caching/backend-api.txt
@@ -676,6 +676,29 @@
as possible.
+ (*) Indicate that a stale object was found and discarded:
+
+ void fscache_object_retrying_stale(struct fscache_object *object);
+
+ This is called to indicate that the lookup procedure found an object in
+ the cache that the netfs decided was stale. The object has been
+ discarded from the cache and the lookup will be performed again.
+
+
+ (*) Indicate that the caching backend killed an object:
+
+ void fscache_object_mark_killed(struct fscache_object *object,
+ enum fscache_why_object_killed why);
+
+ This is called to indicate that the cache backend preemptively killed an
+ object. The why parameter should be set to indicate the reason:
+
+ FSCACHE_OBJECT_IS_STALE - the object was stale and needs discarding.
+ FSCACHE_OBJECT_NO_SPACE - there was insufficient cache space
+ FSCACHE_OBJECT_WAS_RETIRED - the object was retired when relinquished.
+ FSCACHE_OBJECT_WAS_CULLED - the object was culled to make space.
+
+
(*) Get and release references on a retrieval record:
void fscache_get_retrieval(struct fscache_retrieval *op);
diff --git a/Documentation/filesystems/caching/fscache.txt b/Documentation/filesystems/caching/fscache.txt
index 770267a..50f0a57 100644
--- a/Documentation/filesystems/caching/fscache.txt
+++ b/Documentation/filesystems/caching/fscache.txt
@@ -284,8 +284,9 @@
enq=N Number of times async ops queued for processing
can=N Number of async ops cancelled
rej=N Number of async ops rejected due to object lookup/create failure
+ ini=N Number of async ops initialised
dfr=N Number of async ops queued for deferred release
- rel=N Number of async ops released
+ rel=N Number of async ops released (should equal ini=N when idle)
gc=N Number of deferred-release async ops garbage collected
CacheOp alo=N Number of in-progress alloc_object() cache ops
luo=N Number of in-progress lookup_object() cache ops
@@ -303,6 +304,10 @@
wrp=N Number of in-progress write_page() cache ops
ucp=N Number of in-progress uncache_page() cache ops
dsp=N Number of in-progress dissociate_pages() cache ops
+ CacheEv nsp=N Number of object lookups/creations rejected due to lack of space
+ stl=N Number of stale objects deleted
+ rtr=N Number of objects retired when relinquished
+ cul=N Number of objects culled
(*) /proc/fs/fscache/histogram
diff --git a/Documentation/filesystems/dax.txt b/Documentation/filesystems/dax.txt
index baf4111..7af2851 100644
--- a/Documentation/filesystems/dax.txt
+++ b/Documentation/filesystems/dax.txt
@@ -18,8 +18,10 @@
-----
If you have a block device which supports DAX, you can make a filesystem
-on it as usual. When mounting it, use the -o dax option manually
-or add 'dax' to the options in /etc/fstab.
+on it as usual. The DAX code currently only supports files with a block
+size equal to your kernel's PAGE_SIZE, so you may need to specify a block
+size when creating the filesystem. When mounting it, use the "-o dax"
+option on the command line or add 'dax' to the options in /etc/fstab.
Implementation Tips for Block Driver Writers
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 68f1c91..f24d1b8 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -500,3 +500,7 @@
dentry, it does not get nameidata at all and it gets called only when cookie
is non-NULL. Note that link body isn't available anymore, so if you need it,
store it as cookie.
+--
+[mandatory]
+ __fd_install() & fd_install() can now sleep. Callers should not
+ hold a spinlock or other resources that do not allow a schedule.
diff --git a/Documentation/hwmon/submitting-patches b/Documentation/hwmon/submitting-patches
index 3d1bac39..d201828 100644
--- a/Documentation/hwmon/submitting-patches
+++ b/Documentation/hwmon/submitting-patches
@@ -81,6 +81,13 @@
* Provide a detect function if and only if a chip can be detected reliably.
+* Only the following I2C addresses shall be probed: 0x18-0x1f, 0x28-0x2f,
+ 0x48-0x4f, 0x58, 0x5c, 0x73 and 0x77. Probing other addresses is strongly
+ discouraged as it is known to cause trouble with other (non-hwmon) I2C
+ chips. If your chip lives at an address which can't be probed then the
+ device will have to be instantiated explicitly (which is always better
+ anyway.)
+
* Avoid writing to chip registers in the detect function. If you have to write,
only do it after you have already gathered enough data to be certain that the
detection is going to be successful.
diff --git a/Documentation/hwmon/w83792d b/Documentation/hwmon/w83792d
index 53f7b68..f2ffc40 100644
--- a/Documentation/hwmon/w83792d
+++ b/Documentation/hwmon/w83792d
@@ -8,6 +8,7 @@
Datasheet: http://www.winbond.com.tw
Author: Shane Huang (Winbond)
+Updated: Roger Lucas
Module Parameters
@@ -38,9 +39,16 @@
The driver implements three temperature sensors, seven fan rotation speed
sensors, nine voltage sensors, and two automatic fan regulation
strategies called: Smart Fan I (Thermal Cruise mode) and Smart Fan II.
-Automatic fan control mode is possible only for fan1-fan3. Fan4-fan7 can run
-synchronized with selected fan (fan1-fan3). This functionality and manual PWM
-control for fan4-fan7 is not yet implemented.
+
+The driver also implements up to seven fan control outputs: pwm1-7. Pwm1-7
+can be configured to PWM output or Analogue DC output via their associated
+pwmX_mode. Outputs pwm4 through pwm7 may or may not be present depending on
+how the W83792AD/D was configured by the BIOS.
+
+Automatic fan control mode is possible only for fan1-fan3.
+
+For all pwmX outputs, a value of 0 means minimum fan speed and a value of
+255 means maximum fan speed.
Temperatures are measured in degrees Celsius and measurement resolution is 1
degC for temp1 and 0.5 degC for temp2 and temp3. An alarm is triggered when
@@ -157,14 +165,14 @@
/sys files
----------
-pwm[1-3] - this file stores PWM duty cycle or DC value (fan speed) in range:
+pwm[1-7] - this file stores PWM duty cycle or DC value (fan speed) in range:
0 (stop) to 255 (full)
pwm[1-3]_enable - this file controls mode of fan/temperature control:
* 0 Disabled
* 1 Manual mode
* 2 Smart Fan II
* 3 Thermal Cruise
-pwm[1-3]_mode - Select PWM of DC mode
+pwm[1-7]_mode - Select PWM or DC mode
* 0 DC
* 1 PWM
thermal_cruise[1-3] - Selects the desired temperature for cruise (degC)
diff --git a/Documentation/hwspinlock.txt b/Documentation/hwspinlock.txt
index 62f7d4e..61c1ee9 100644
--- a/Documentation/hwspinlock.txt
+++ b/Documentation/hwspinlock.txt
@@ -48,6 +48,16 @@
ids for predefined purposes.
Should be called from a process context (might sleep).
+ int of_hwspin_lock_get_id(struct device_node *np, int index);
+ - retrieve the global lock id for an OF phandle-based specific lock.
+ This function provides a means for DT users of a hwspinlock module
+ to get the global lock id of a specific hwspinlock, so that it can
+ be requested using the normal hwspin_lock_request_specific() API.
+ The function returns a lock id number on success, -EPROBE_DEFER if
+ the hwspinlock device is not yet registered with the core, or other
+ error values.
+ Should be called from a process context (might sleep).
+
int hwspin_lock_free(struct hwspinlock *hwlock);
- free a previously-assigned hwspinlock; returns 0 on success, or an
appropriate error code on failure (e.g. -EINVAL if the hwspinlock
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 51f4221..611c522 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -321,6 +321,7 @@
0xDB 00-0F drivers/char/mwave/mwavepub.h
0xDD 00-3F ZFCP device driver see drivers/s390/scsi/
<mailto:aherrman@de.ibm.com>
+0xE5 00-3F linux/fuse.h
0xEC 00-01 drivers/platform/chrome/cros_ec_dev.h ChromeOS EC driver
0xF3 00-3F drivers/usb/misc/sisusbvga/sisusb.h sisfb (in development)
<mailto:thomas@winischhofer.net>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index afe7e2b..1d6f045 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -293,6 +293,12 @@
acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
Format: To spoof as Windows 98: ="Microsoft Windows"
+ acpi_rev_override [ACPI] Override the _REV object to return 5 (instead
+ of 2 which is mandated by ACPI 6) as the supported ACPI
+ specification revision (when using this switch, it may
+ be necessary to carry out a cold reboot _twice_ in a
+ row to make it take effect on the platform firmware).
+
acpi_osi= [HW,ACPI] Modify list of supported OS interface strings
acpi_osi="string1" # add string1
acpi_osi="!string2" # remove string2
diff --git a/Documentation/ntb.txt b/Documentation/ntb.txt
new file mode 100644
index 0000000..1d9bbab
--- /dev/null
+++ b/Documentation/ntb.txt
@@ -0,0 +1,127 @@
+# NTB Drivers
+
+NTB (Non-Transparent Bridge) is a type of PCI-Express bridge chip that connects
+the separate memory systems of two computers to the same PCI-Express fabric.
+Existing NTB hardware supports a common feature set, including scratchpad
+registers, doorbell registers, and memory translation windows. Scratchpad
+registers are read-and-writable registers that are accessible from either side
+of the device, so that peers can exchange a small amount of information at a
+fixed address. Doorbell registers provide a way for peers to send interrupt
+events. Memory windows allow translated read and write access to the peer
+memory.
+
+## NTB Core Driver (ntb)
+
+The NTB core driver defines an api wrapping the common feature set, and allows
+clients interested in NTB features to discover NTB the devices supported by
+hardware drivers. The term "client" is used here to mean an upper layer
+component making use of the NTB api. The term "driver," or "hardware driver,"
+is used here to mean a driver for a specific vendor and model of NTB hardware.
+
+## NTB Client Drivers
+
+NTB client drivers should register with the NTB core driver. After
+registering, the client probe and remove functions will be called appropriately
+as ntb hardware, or hardware drivers, are inserted and removed. The
+registration uses the Linux Device framework, so it should feel familiar to
+anyone who has written a pci driver.
+
+### NTB Transport Client (ntb\_transport) and NTB Netdev (ntb\_netdev)
+
+The primary client for NTB is the Transport client, used in tandem with NTB
+Netdev. These drivers function together to create a logical link to the peer,
+across the ntb, to exchange packets of network data. The Transport client
+establishes a logical link to the peer, and creates queue pairs to exchange
+messages and data. The NTB Netdev then creates an ethernet device using a
+Transport queue pair. Network data is copied between socket buffers and the
+Transport queue pair buffer. The Transport client may be used for other things
+besides Netdev, however no other applications have yet been written.
+
+### NTB Ping Pong Test Client (ntb\_pingpong)
+
+The Ping Pong test client serves as a demonstration to exercise the doorbell
+and scratchpad registers of NTB hardware, and as an example simple NTB client.
+Ping Pong enables the link when started, waits for the NTB link to come up, and
+then proceeds to read and write the doorbell scratchpad registers of the NTB.
+The peers interrupt each other using a bit mask of doorbell bits, which is
+shifted by one in each round, to test the behavior of multiple doorbell bits
+and interrupt vectors. The Ping Pong driver also reads the first local
+scratchpad, and writes the value plus one to the first peer scratchpad, each
+round before writing the peer doorbell register.
+
+Module Parameters:
+
+* unsafe - Some hardware has known issues with scratchpad and doorbell
+ registers. By default, Ping Pong will not attempt to exercise such
+ hardware. You may override this behavior at your own risk by setting
+ unsafe=1.
+* delay\_ms - Specify the delay between receiving a doorbell
+ interrupt event and setting the peer doorbell register for the next
+ round.
+* init\_db - Specify the doorbell bits to start new series of rounds. A new
+ series begins once all the doorbell bits have been shifted out of
+ range.
+* dyndbg - It is suggested to specify dyndbg=+p when loading this module, and
+ then to observe debugging output on the console.
+
+### NTB Tool Test Client (ntb\_tool)
+
+The Tool test client serves for debugging, primarily, ntb hardware and drivers.
+The Tool provides access through debugfs for reading, setting, and clearing the
+NTB doorbell, and reading and writing scratchpads.
+
+The Tool does not currently have any module parameters.
+
+Debugfs Files:
+
+* *debugfs*/ntb\_tool/*hw*/ - A directory in debugfs will be created for each
+ NTB device probed by the tool. This directory is shortened to *hw*
+ below.
+* *hw*/db - This file is used to read, set, and clear the local doorbell. Not
+ all operations may be supported by all hardware. To read the doorbell,
+ read the file. To set the doorbell, write `s` followed by the bits to
+ set (eg: `echo 's 0x0101' > db`). To clear the doorbell, write `c`
+ followed by the bits to clear.
+* *hw*/mask - This file is used to read, set, and clear the local doorbell mask.
+ See *db* for details.
+* *hw*/peer\_db - This file is used to read, set, and clear the peer doorbell.
+ See *db* for details.
+* *hw*/peer\_mask - This file is used to read, set, and clear the peer doorbell
+ mask. See *db* for details.
+* *hw*/spad - This file is used to read and write local scratchpads. To read
+ the values of all scratchpads, read the file. To write values, write a
+ series of pairs of scratchpad number and value
+ (eg: `echo '4 0x123 7 0xabc' > spad`
+ # to set scratchpads `4` and `7` to `0x123` and `0xabc`, respectively).
+* *hw*/peer\_spad - This file is used to read and write peer scratchpads. See
+ *spad* for details.
+
+## NTB Hardware Drivers
+
+NTB hardware drivers should register devices with the NTB core driver. After
+registering, clients probe and remove functions will be called.
+
+### NTB Intel Hardware Driver (ntb\_hw\_intel)
+
+The Intel hardware driver supports NTB on Xeon and Atom CPUs.
+
+Module Parameters:
+
+* b2b\_mw\_idx - If the peer ntb is to be accessed via a memory window, then use
+ this memory window to access the peer ntb. A value of zero or positive
+ starts from the first mw idx, and a negative value starts from the last
+ mw idx. Both sides MUST set the same value here! The default value is
+ `-1`.
+* b2b\_mw\_share - If the peer ntb is to be accessed via a memory window, and if
+ the memory window is large enough, still allow the client to use the
+ second half of the memory window for address translation to the peer.
+* xeon\_b2b\_usd\_bar2\_addr64 - If using B2B topology on Xeon hardware, use
+ this 64 bit address on the bus between the NTB devices for the window
+ at BAR2, on the upstream side of the link.
+* xeon\_b2b\_usd\_bar4\_addr64 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_usd\_bar4\_addr32 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_usd\_bar5\_addr32 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_dsd\_bar2\_addr64 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_dsd\_bar4\_addr64 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_dsd\_bar4\_addr32 - See *xeon\_b2b\_bar2\_addr64*.
+* xeon\_b2b\_dsd\_bar5\_addr32 - See *xeon\_b2b\_bar2\_addr64*.
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index f732a83..8cc17ca 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -410,8 +410,17 @@
Q: Can I suspend-to-disk using a swap partition under LVM?
-A: No. You can suspend successfully, but you'll not be able to
-resume. uswsusp should be able to work with LVM. See suspend.sf.net.
+A: Yes and No. You can suspend successfully, but the kernel will not be able
+to resume on its own. You need an initramfs that can recognize the resume
+situation, activate the logical volume containing the swap volume (but not
+touch any filesystems!), and eventually call
+
+echo -n "$major:$minor" > /sys/power/resume
+
+where $major and $minor are the respective major and minor device numbers of
+the swap volume.
+
+uswsusp works with LVM, too. See http://suspend.sourceforge.net/
Q: I upgraded the kernel from 2.6.15 to 2.6.16. Both kernels were
compiled with the similar configuration files. Anyway I found that
diff --git a/Documentation/remoteproc.txt b/Documentation/remoteproc.txt
index e6469fd..ef0219f 100644
--- a/Documentation/remoteproc.txt
+++ b/Documentation/remoteproc.txt
@@ -51,6 +51,12 @@
rproc_shutdown() returns, and users can still use it with a subsequent
rproc_boot(), if needed.
+ struct rproc *rproc_get_by_phandle(phandle phandle)
+ - Find an rproc handle using a device tree phandle. Returns the rproc
+ handle on success, and NULL on failure. This function increments
+ the remote processor's refcount, so always use rproc_put() to
+ decrement it back once rproc isn't needed anymore.
+
3. Typical usage
#include <linux/remoteproc.h>
diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py
index 6085e1f..949de19 100755
--- a/Documentation/target/tcm_mod_builder.py
+++ b/Documentation/target/tcm_mod_builder.py
@@ -50,15 +50,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* Binary World Wide unique Port Name for FC Initiator Nport */\n"
- buf += " u64 nport_wwpn;\n"
- buf += " /* ASCII formatted WWPN for FC Initiator Nport */\n"
- buf += " char nport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n"
- buf += "\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* FC lport target portal group tag for TCM */\n"
buf += " u16 lport_tpgt;\n"
@@ -69,8 +60,6 @@
buf += "};\n"
buf += "\n"
buf += "struct " + fabric_mod_name + "_lport {\n"
- buf += " /* SCSI protocol the lport is providing */\n"
- buf += " u8 lport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for FC Target Lport */\n"
buf += " u64 lport_wwpn;\n"
buf += " /* ASCII formatted WWPN for FC Target Lport */\n"
@@ -105,14 +94,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* Binary World Wide unique Port Name for SAS Initiator port */\n"
- buf += " u64 iport_wwpn;\n"
- buf += " /* ASCII formatted WWPN for Sas Initiator port */\n"
- buf += " char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* SAS port target portal group tag for TCM */\n"
buf += " u16 tport_tpgt;\n"
@@ -122,8 +103,6 @@
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
- buf += " /* SCSI protocol the tport is providing */\n"
- buf += " u8 tport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for SAS Target port */\n"
buf += " u64 tport_wwpn;\n"
buf += " /* ASCII formatted WWPN for SAS Target port */\n"
@@ -158,12 +137,6 @@
buf = "#define " + fabric_mod_name.upper() + "_VERSION \"v0.1\"\n"
buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
buf += "\n"
- buf += "struct " + fabric_mod_name + "_nacl {\n"
- buf += " /* ASCII formatted InitiatorName */\n"
- buf += " char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
- buf += " /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
- buf += " struct se_node_acl se_node_acl;\n"
- buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tpg {\n"
buf += " /* iSCSI target portal group tag for TCM */\n"
buf += " u16 tport_tpgt;\n"
@@ -173,8 +146,6 @@
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
- buf += " /* SCSI protocol the tport is providing */\n"
- buf += " u8 tport_proto_id;\n"
buf += " /* ASCII formatted TargetName for IQN */\n"
buf += " char tport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
buf += " /* Returned by " + fabric_mod_name + "_make_tport() */\n"
@@ -232,61 +203,12 @@
buf += "#include <target/target_core_base.h>\n"
buf += "#include <target/target_core_fabric.h>\n"
buf += "#include <target/target_core_fabric_configfs.h>\n"
- buf += "#include <target/target_core_configfs.h>\n"
buf += "#include <target/configfs_macros.h>\n\n"
buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops;\n\n"
- buf += "static struct se_node_acl *" + fabric_mod_name + "_make_nodeacl(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct config_group *group,\n"
- buf += " const char *name)\n"
- buf += "{\n"
- buf += " struct se_node_acl *se_nacl, *se_nacl_new;\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl;\n"
-
- if proto_ident == "FC" or proto_ident == "SAS":
- buf += " u64 wwpn = 0;\n"
-
- buf += " u32 nexus_depth;\n\n"
- buf += " /* " + fabric_mod_name + "_parse_wwn(name, &wwpn, 1) < 0)\n"
- buf += " return ERR_PTR(-EINVAL); */\n"
- buf += " se_nacl_new = " + fabric_mod_name + "_alloc_fabric_acl(se_tpg);\n"
- buf += " if (!se_nacl_new)\n"
- buf += " return ERR_PTR(-ENOMEM);\n"
- buf += "//#warning FIXME: Hardcoded nexus depth in " + fabric_mod_name + "_make_nodeacl()\n"
- buf += " nexus_depth = 1;\n"
- buf += " /*\n"
- buf += " * se_nacl_new may be released by core_tpg_add_initiator_node_acl()\n"
- buf += " * when converting a NodeACL from demo mode -> explict\n"
- buf += " */\n"
- buf += " se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,\n"
- buf += " name, nexus_depth);\n"
- buf += " if (IS_ERR(se_nacl)) {\n"
- buf += " " + fabric_mod_name + "_release_fabric_acl(se_tpg, se_nacl_new);\n"
- buf += " return se_nacl;\n"
- buf += " }\n"
- buf += " /*\n"
- buf += " * Locate our struct " + fabric_mod_name + "_nacl and set the FC Nport WWPN\n"
- buf += " */\n"
- buf += " nacl = container_of(se_nacl, struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
-
- if proto_ident == "FC" or proto_ident == "SAS":
- buf += " nacl->" + fabric_mod_init_port + "_wwpn = wwpn;\n"
-
- buf += " /* " + fabric_mod_name + "_format_wwn(&nacl->" + fabric_mod_init_port + "_name[0], " + fabric_mod_name.upper() + "_NAMELEN, wwpn); */\n\n"
- buf += " return se_nacl;\n"
- buf += "}\n\n"
- buf += "static void " + fabric_mod_name + "_drop_nodeacl(struct se_node_acl *se_acl)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n"
- buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
- buf += " core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n"
- buf += " kfree(nacl);\n"
- buf += "}\n\n"
-
buf += "static struct se_portal_group *" + fabric_mod_name + "_make_tpg(\n"
buf += " struct se_wwn *wwn,\n"
buf += " struct config_group *group,\n"
@@ -309,8 +231,7 @@
buf += " tpg->" + fabric_mod_port + " = " + fabric_mod_port + ";\n"
buf += " tpg->" + fabric_mod_port + "_tpgt = tpgt;\n\n"
buf += " ret = core_tpg_register(&" + fabric_mod_name + "_ops, wwn,\n"
- buf += " &tpg->se_tpg, tpg,\n"
- buf += " TRANSPORT_TPG_TYPE_NORMAL);\n"
+ buf += " &tpg->se_tpg, SCSI_PROTOCOL_SAS);\n"
buf += " if (ret < 0) {\n"
buf += " kfree(tpg);\n"
buf += " return NULL;\n"
@@ -372,21 +293,13 @@
buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n"
buf += " .module = THIS_MODULE,\n"
buf += " .name = " + fabric_mod_name + ",\n"
- buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n"
buf += " .get_fabric_name = " + fabric_mod_name + "_get_fabric_name,\n"
- buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n"
buf += " .tpg_get_wwn = " + fabric_mod_name + "_get_fabric_wwn,\n"
buf += " .tpg_get_tag = " + fabric_mod_name + "_get_tag,\n"
- buf += " .tpg_get_default_depth = " + fabric_mod_name + "_get_default_depth,\n"
- buf += " .tpg_get_pr_transport_id = " + fabric_mod_name + "_get_pr_transport_id,\n"
- buf += " .tpg_get_pr_transport_id_len = " + fabric_mod_name + "_get_pr_transport_id_len,\n"
- buf += " .tpg_parse_pr_out_transport_id = " + fabric_mod_name + "_parse_pr_out_transport_id,\n"
buf += " .tpg_check_demo_mode = " + fabric_mod_name + "_check_false,\n"
buf += " .tpg_check_demo_mode_cache = " + fabric_mod_name + "_check_true,\n"
buf += " .tpg_check_demo_mode_write_protect = " + fabric_mod_name + "_check_true,\n"
buf += " .tpg_check_prod_mode_write_protect = " + fabric_mod_name + "_check_false,\n"
- buf += " .tpg_alloc_fabric_acl = " + fabric_mod_name + "_alloc_fabric_acl,\n"
- buf += " .tpg_release_fabric_acl = " + fabric_mod_name + "_release_fabric_acl,\n"
buf += " .tpg_get_inst_index = " + fabric_mod_name + "_tpg_get_inst_index,\n"
buf += " .release_cmd = " + fabric_mod_name + "_release_cmd,\n"
buf += " .shutdown_session = " + fabric_mod_name + "_shutdown_session,\n"
@@ -396,7 +309,6 @@
buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n"
buf += " .write_pending_status = " + fabric_mod_name + "_write_pending_status,\n"
buf += " .set_default_node_attributes = " + fabric_mod_name + "_set_default_node_attrs,\n"
- buf += " .get_task_tag = " + fabric_mod_name + "_get_task_tag,\n"
buf += " .get_cmd_state = " + fabric_mod_name + "_get_cmd_state,\n"
buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n"
buf += " .queue_status = " + fabric_mod_name + "_queue_status,\n"
@@ -409,12 +321,6 @@
buf += " .fabric_drop_wwn = " + fabric_mod_name + "_drop_" + fabric_mod_port + ",\n"
buf += " .fabric_make_tpg = " + fabric_mod_name + "_make_tpg,\n"
buf += " .fabric_drop_tpg = " + fabric_mod_name + "_drop_tpg,\n"
- buf += " .fabric_post_link = NULL,\n"
- buf += " .fabric_pre_unlink = NULL,\n"
- buf += " .fabric_make_np = NULL,\n"
- buf += " .fabric_drop_np = NULL,\n"
- buf += " .fabric_make_nodeacl = " + fabric_mod_name + "_make_nodeacl,\n"
- buf += " .fabric_drop_nodeacl = " + fabric_mod_name + "_drop_nodeacl,\n"
buf += "\n"
buf += " .tfc_wwn_attrs = " + fabric_mod_name + "_wwn_attrs;\n"
buf += "};\n\n"
@@ -507,7 +413,6 @@
buf += "#include <scsi/scsi_proto.h>\n"
buf += "#include <target/target_core_base.h>\n"
buf += "#include <target/target_core_fabric.h>\n"
- buf += "#include <target/target_core_configfs.h>\n\n"
buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
@@ -539,35 +444,6 @@
bufi += "char *" + fabric_mod_name + "_get_fabric_name(void);\n"
continue
- if re.search('get_fabric_proto_ident', fo):
- buf += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " u8 proto_id;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " proto_id = fc_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " proto_id = sas_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " proto_id = iscsi_get_fabric_proto_ident(se_tpg);\n"
- buf += " break;\n"
-
- buf += " }\n\n"
- buf += " return proto_id;\n"
- buf += "}\n\n"
- bufi += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *);\n"
-
if re.search('get_wwn', fo):
buf += "char *" + fabric_mod_name + "_get_fabric_wwn(struct se_portal_group *se_tpg)\n"
buf += "{\n"
@@ -587,150 +463,6 @@
buf += "}\n\n"
bufi += "u16 " + fabric_mod_name + "_get_tag(struct se_portal_group *);\n"
- if re.search('get_default_depth', fo):
- buf += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " return 1;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *);\n"
-
- if re.search('get_pr_transport_id\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_pr_transport_id(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl,\n"
- buf += " struct t10_pr_registration *pr_reg,\n"
- buf += " int *format_code,\n"
- buf += " unsigned char *buf)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " int ret = 0;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " ret = iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code, buf);\n"
- buf += " break;\n"
-
- buf += " }\n\n"
- buf += " return ret;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
- bufi += " int *, unsigned char *);\n"
-
- if re.search('get_pr_transport_id_len\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl,\n"
- buf += " struct t10_pr_registration *pr_reg,\n"
- buf += " int *format_code)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " int ret = 0;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " ret = iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
- buf += " format_code);\n"
- buf += " break;\n"
-
-
- buf += " }\n\n"
- buf += " return ret;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
- bufi += " int *);\n"
-
- if re.search('parse_pr_out_transport_id\)\(', fo):
- buf += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " const char *buf,\n"
- buf += " u32 *out_tid_len,\n"
- buf += " char **port_nexus_ptr)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
- buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
- buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
- buf += " char *tid = NULL;\n\n"
- buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
- if proto_ident == "FC":
- buf += " case SCSI_PROTOCOL_FCP:\n"
- buf += " default:\n"
- buf += " tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
- elif proto_ident == "SAS":
- buf += " case SCSI_PROTOCOL_SAS:\n"
- buf += " default:\n"
- buf += " tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
- elif proto_ident == "iSCSI":
- buf += " case SCSI_PROTOCOL_ISCSI:\n"
- buf += " default:\n"
- buf += " tid = iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
- buf += " port_nexus_ptr);\n"
-
- buf += " }\n\n"
- buf += " return tid;\n"
- buf += "}\n\n"
- bufi += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(struct se_portal_group *,\n"
- bufi += " const char *, u32 *, char **);\n"
-
- if re.search('alloc_fabric_acl\)\(', fo):
- buf += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *se_tpg)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl;\n\n"
- buf += " nacl = kzalloc(sizeof(struct " + fabric_mod_name + "_nacl), GFP_KERNEL);\n"
- buf += " if (!nacl) {\n"
- buf += " printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name + "_nacl\\n\");\n"
- buf += " return NULL;\n"
- buf += " }\n\n"
- buf += " return &nacl->se_node_acl;\n"
- buf += "}\n\n"
- bufi += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *);\n"
-
- if re.search('release_fabric_acl\)\(', fo):
- buf += "void " + fabric_mod_name + "_release_fabric_acl(\n"
- buf += " struct se_portal_group *se_tpg,\n"
- buf += " struct se_node_acl *se_nacl)\n"
- buf += "{\n"
- buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_nacl,\n"
- buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
- buf += " kfree(nacl);\n"
- buf += "}\n\n"
- bufi += "void " + fabric_mod_name + "_release_fabric_acl(struct se_portal_group *,\n"
- bufi += " struct se_node_acl *);\n"
-
if re.search('tpg_get_inst_index\)\(', fo):
buf += "u32 " + fabric_mod_name + "_tpg_get_inst_index(struct se_portal_group *se_tpg)\n"
buf += "{\n"
@@ -787,13 +519,6 @@
buf += "}\n\n"
bufi += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *);\n"
- if re.search('get_task_tag\)\(', fo):
- buf += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *se_cmd)\n"
- buf += "{\n"
- buf += " return 0;\n"
- buf += "}\n\n"
- bufi += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *);\n"
-
if re.search('get_cmd_state\)\(', fo):
buf += "int " + fabric_mod_name + "_get_cmd_state(struct se_cmd *se_cmd)\n"
buf += "{\n"
diff --git a/Documentation/target/tcm_mod_builder.txt b/Documentation/target/tcm_mod_builder.txt
index 84533d8..ae22f70 100644
--- a/Documentation/target/tcm_mod_builder.txt
+++ b/Documentation/target/tcm_mod_builder.txt
@@ -13,8 +13,8 @@
This script will create a new drivers/target/$TCM_NEW_MOD/, and will do the following
*) Generate new API callers for drivers/target/target_core_fabric_configs.c logic
- ->make_nodeacl(), ->drop_nodeacl(), ->make_tpg(), ->drop_tpg()
- ->make_wwn(), ->drop_wwn(). These are created into $TCM_NEW_MOD/$TCM_NEW_MOD_configfs.c
+ ->make_tpg(), ->drop_tpg(), ->make_wwn(), ->drop_wwn(). These are created
+ into $TCM_NEW_MOD/$TCM_NEW_MOD_configfs.c
*) Generate basic infrastructure for loading/unloading LKMs and TCM/ConfigFS fabric module
using a skeleton struct target_core_fabric_ops API template.
*) Based on user defined T10 Proto_Ident for the new fabric module being built,
diff --git a/Documentation/target/tcmu-design.txt b/Documentation/target/tcmu-design.txt
index 263b907..bef81e4 100644
--- a/Documentation/target/tcmu-design.txt
+++ b/Documentation/target/tcmu-design.txt
@@ -152,7 +152,7 @@
are accessible via tht req.iov[] array. iov_cnt contains the number of
entries in iov[] needed to describe either the Data-In or Data-Out
buffers. For bidirectional commands, iov_cnt specifies how many iovec
-entries cover the Data-Out area, and iov_bidi_count specifies how many
+entries cover the Data-Out area, and iov_bidi_cnt specifies how many
iovec entries immediately after that in iov[] cover the Data-In
area. Just like other fields, iov.iov_base is an offset from the start
of the region.
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 7c1f9fa..9da6f35 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -406,7 +406,7 @@
- If 0, the protected-mode code is loaded at 0x10000.
- If 1, the protected-mode code is loaded at 0x100000.
- Bit 1 (kernel internal): ALSR_FLAG
+ Bit 1 (kernel internal): KASLR_FLAG
- Used internally by the compressed kernel to communicate
KASLR status to kernel proper.
If 1, KASLR enabled.
diff --git a/Documentation/x86/entry_64.txt b/Documentation/x86/entry_64.txt
index 33884d1..c1df8eb 100644
--- a/Documentation/x86/entry_64.txt
+++ b/Documentation/x86/entry_64.txt
@@ -1,14 +1,14 @@
This file documents some of the kernel entries in
-arch/x86/kernel/entry_64.S. A lot of this explanation is adapted from
+arch/x86/entry/entry_64.S. A lot of this explanation is adapted from
an email from Ingo Molnar:
http://lkml.kernel.org/r/<20110529191055.GC9835%40elte.hu>
The x86 architecture has quite a few different ways to jump into
kernel code. Most of these entry points are registered in
-arch/x86/kernel/traps.c and implemented in arch/x86/kernel/entry_64.S
-for 64-bit, arch/x86/kernel/entry_32.S for 32-bit and finally
-arch/x86/ia32/ia32entry.S which implements the 32-bit compatibility
+arch/x86/kernel/traps.c and implemented in arch/x86/entry/entry_64.S
+for 64-bit, arch/x86/entry/entry_32.S for 32-bit and finally
+arch/x86/entry/entry_64_compat.S which implements the 32-bit compatibility
syscall entry points and thus provides for 32-bit processes the
ability to execute syscalls when running on 64-bit kernels.
diff --git a/MAINTAINERS b/MAINTAINERS
index 8183b465..2d3d55c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1614,6 +1614,7 @@
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/boot/dts/vexpress*
+F: arch/arm64/boot/dts/arm/vexpress*
F: arch/arm/mach-vexpress/
F: */*/vexpress*
F: */*/*/vexpress*
@@ -2562,19 +2563,31 @@
F: arch/powerpc/oprofile/*cell*
F: arch/powerpc/platforms/cell/
-CEPH DISTRIBUTED FILE SYSTEM CLIENT
+CEPH COMMON CODE (LIBCEPH)
+M: Ilya Dryomov <idryomov@gmail.com>
M: "Yan, Zheng" <zyan@redhat.com>
M: Sage Weil <sage@redhat.com>
L: ceph-devel@vger.kernel.org
W: http://ceph.com/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
S: Supported
-F: Documentation/filesystems/ceph.txt
-F: fs/ceph/
F: net/ceph/
F: include/linux/ceph/
F: include/linux/crush/
+CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH)
+M: "Yan, Zheng" <zyan@redhat.com>
+M: Sage Weil <sage@redhat.com>
+M: Ilya Dryomov <idryomov@gmail.com>
+L: ceph-devel@vger.kernel.org
+W: http://ceph.com/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
+S: Supported
+F: Documentation/filesystems/ceph.txt
+F: fs/ceph/
+
CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
L: linux-usb@vger.kernel.org
S: Orphan
@@ -4430,9 +4443,11 @@
M: Miklos Szeredi <miklos@szeredi.hu>
L: fuse-devel@lists.sourceforge.net
W: http://fuse.sourceforge.net/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git
S: Maintained
F: fs/fuse/
F: include/uapi/linux/fuse.h
+F: Documentation/filesystems/fuse.txt
FUTURE DOMAIN TMC-16x0 SCSI DRIVER (16-bit)
M: Rik Faith <faith@cs.unc.edu>
@@ -5468,6 +5483,13 @@
F: drivers/misc/mei/*
F: Documentation/misc-devices/mei/*
+INTEL PMC IPC DRIVER
+M: Zha Qipeng<qipeng.zha@intel.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/intel_pmc_ipc.c
+F: arch/x86/include/asm/intel_pmc_ipc.h
+
IOC3 ETHERNET DRIVER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-mips@linux-mips.org
@@ -6138,6 +6160,7 @@
Q: https://patchwork.kernel.org/project/linux-nvdimm/list/
S: Supported
F: drivers/nvdimm/pmem.c
+F: include/linux/pmem.h
LINUX FOR IBM pSERIES (RS/6000)
M: Paul Mackerras <paulus@au.ibm.com>
@@ -6152,7 +6175,7 @@
W: http://www.penguinppc.org/
L: linuxppc-dev@lists.ozlabs.org
Q: http://patchwork.ozlabs.org/project/linuxppc-dev/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
S: Supported
F: Documentation/powerpc/
F: arch/powerpc/
@@ -7211,15 +7234,25 @@
F: drivers/power/isp1704_charger.c
F: drivers/power/rx51_battery.c
-NTB DRIVER
+NTB DRIVER CORE
M: Jon Mason <jdmason@kudzu.us>
M: Dave Jiang <dave.jiang@intel.com>
+M: Allen Hubbe <Allen.Hubbe@emc.com>
S: Supported
W: https://github.com/jonmason/ntb/wiki
T: git git://github.com/jonmason/ntb.git
F: drivers/ntb/
F: drivers/net/ntb_netdev.c
F: include/linux/ntb.h
+F: include/linux/ntb_transport.h
+
+NTB INTEL DRIVER
+M: Jon Mason <jdmason@kudzu.us>
+M: Dave Jiang <dave.jiang@intel.com>
+S: Supported
+W: https://github.com/jonmason/ntb/wiki
+T: git git://github.com/jonmason/ntb.git
+F: drivers/ntb/hw/intel/
NTFS FILESYSTEM
M: Anton Altaparmakov <anton@tuxera.com>
@@ -7363,7 +7396,6 @@
L: linux-omap@vger.kernel.org
S: Maintained
F: drivers/hwspinlock/omap_hwspinlock.c
-F: arch/arm/mach-omap2/hwspinlock.c
OMAP MMC SUPPORT
M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
@@ -8349,10 +8381,12 @@
M: Ilya Dryomov <idryomov@gmail.com>
M: Sage Weil <sage@redhat.com>
M: Alex Elder <elder@kernel.org>
-M: ceph-devel@vger.kernel.org
+L: ceph-devel@vger.kernel.org
W: http://ceph.com/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
S: Supported
+F: Documentation/ABI/testing/sysfs-bus-rbd
F: drivers/block/rbd.c
F: drivers/block/rbd_types.h
diff --git a/Makefile b/Makefile
index 6c6f146..257ef58 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
-PATCHLEVEL = 1
+PATCHLEVEL = 2
SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc2
NAME = Hurr durr I'ma sheep
# *DOCUMENTATION*
@@ -335,15 +335,6 @@
export KBUILD_MODULES KBUILD_BUILTIN
export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
-ifneq ($(CC),)
-ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
-COMPILER := clang
-else
-COMPILER := gcc
-endif
-export COMPILER
-endif
-
# We need some generic definitions (do not try to remake the file).
scripts/Kbuild.include: ;
include scripts/Kbuild.include
@@ -670,6 +661,13 @@
endif
KBUILD_CFLAGS += $(stackp-flag)
+ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
+COMPILER := clang
+else
+COMPILER := gcc
+endif
+export COMPILER
+
ifeq ($(COMPILER),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index e0cf9989..807f7d6 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -71,15 +71,12 @@
mmput(mm);
if (exe_file) {
- path = exe_file->f_path;
- path_get(&exe_file->f_path);
+ path_nm = file_path(exe_file, buf, 255);
fput(exe_file);
- path_nm = d_path(&path, buf, 255);
- path_put(&path);
}
done:
- pr_info("Path: %s\n", path_nm);
+ pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?");
}
static void show_faulting_vma(unsigned long address, char *buf)
@@ -103,8 +100,7 @@
if (vma && (vma->vm_start <= address)) {
struct file *file = vma->vm_file;
if (file) {
- struct path *path = &file->f_path;
- nm = d_path(path, buf, PAGE_SIZE - 1);
+ nm = file_path(file, buf, PAGE_SIZE - 1);
inode = file_inode(vma->vm_file);
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a750c14..1c50210 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1693,6 +1693,12 @@
config HIGHPTE
bool "Allocate 2nd-level pagetables from highmem"
depends on HIGHMEM
+ help
+ The VM uses one page of physical memory for each page table.
+ For systems with a lot of processes, this can use a lot of
+ precious low memory, eventually leading to low memory being
+ consumed by page tables. Setting this option will allow
+ user-space 2nd level page tables to reside in high memory.
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index f1b1579..a2e16f9 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1635,7 +1635,7 @@
config DEBUG_SET_MODULE_RONX
bool "Set loadable kernel module data as NX and text as RO"
- depends on MODULES
+ depends on MODULES && MMU
---help---
This option helps catch unintended modifications to loadable
kernel module's text and read-only data. It also prevents execution
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 901739f..5c42d25 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -80,3 +80,7 @@
status = "okay";
};
};
+
+&rtc {
+ system-power-controller;
+};
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index c80a3e2..ade28c79 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -132,6 +132,12 @@
};
};
+ emif: emif@4c000000 {
+ compatible = "ti,emif-am4372";
+ reg = <0x4c000000 0x1000000>;
+ ti,hwmods = "emif";
+ };
+
edma: edma@49000000 {
compatible = "ti,edma3";
ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
@@ -941,6 +947,7 @@
ti,hwmods = "dss_rfbi";
clocks = <&disp_clk>;
clock-names = "fck";
+ status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index a42cc37..a63bf78 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -605,6 +605,10 @@
phy-supply = <&ldousb_reg>;
};
+&usb2_phy2 {
+ phy-supply = <&ldousb_reg>;
+};
+
&usb1 {
dr_mode = "host";
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
index 0854d44..3de9b76 100644
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -305,7 +305,7 @@
spi0_pins: spi0-pins {
marvell,pins = "mpp36", "mpp37",
"mpp38", "mpp39";
- marvell,function = "spi";
+ marvell,function = "spi0";
};
uart2_pins: uart2-pins {
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index d260ba7..18177f5 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -1148,7 +1148,7 @@
usb2: gadget@fff78000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "atmel,at91sam9rl-udc";
+ compatible = "atmel,at91sam9g45-udc";
reg = <0x00600000 0x80000
0xfff78000 0x400>;
interrupts = <27 IRQ_TYPE_LEVEL_HIGH 0>;
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 7521bdf..b6c8df8 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -1108,7 +1108,7 @@
usb2: gadget@f803c000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "atmel,at91sam9rl-udc";
+ compatible = "atmel,at91sam9g45-udc";
reg = <0x00500000 0x80000
0xf803c000 0x400>;
interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
diff --git a/arch/arm/boot/dts/atlas7.dtsi b/arch/arm/boot/dts/atlas7.dtsi
index 5dfd3a4..3e21311 100644
--- a/arch/arm/boot/dts/atlas7.dtsi
+++ b/arch/arm/boot/dts/atlas7.dtsi
@@ -135,6 +135,1025 @@
compatible = "sirf,atlas7-ioc";
reg = <0x18880000 0x1000>,
<0x10E40000 0x1000>;
+
+ audio_ac97_pmx: audio_ac97@0 {
+ audio_ac97 {
+ groups = "audio_ac97_grp";
+ function = "audio_ac97";
+ };
+ };
+
+ audio_func_dbg_pmx: audio_func_dbg@0 {
+ audio_func_dbg {
+ groups = "audio_func_dbg_grp";
+ function = "audio_func_dbg";
+ };
+ };
+
+ audio_i2s_pmx: audio_i2s@0 {
+ audio_i2s {
+ groups = "audio_i2s_grp";
+ function = "audio_i2s";
+ };
+ };
+
+ audio_i2s_2ch_pmx: audio_i2s_2ch@0 {
+ audio_i2s_2ch {
+ groups = "audio_i2s_2ch_grp";
+ function = "audio_i2s_2ch";
+ };
+ };
+
+ audio_i2s_extclk_pmx: audio_i2s_extclk@0 {
+ audio_i2s_extclk {
+ groups = "audio_i2s_extclk_grp";
+ function = "audio_i2s_extclk";
+ };
+ };
+
+ audio_uart0_pmx: audio_uart0@0 {
+ audio_uart0 {
+ groups = "audio_uart0_grp";
+ function = "audio_uart0";
+ };
+ };
+
+ audio_uart1_pmx: audio_uart1@0 {
+ audio_uart1 {
+ groups = "audio_uart1_grp";
+ function = "audio_uart1";
+ };
+ };
+
+ audio_uart2_pmx0: audio_uart2@0 {
+ audio_uart2_0 {
+ groups = "audio_uart2_grp0";
+ function = "audio_uart2_m0";
+ };
+ };
+
+ audio_uart2_pmx1: audio_uart2@1 {
+ audio_uart2_1 {
+ groups = "audio_uart2_grp1";
+ function = "audio_uart2_m1";
+ };
+ };
+
+ c_can_trnsvr_pmx: c_can_trnsvr@0 {
+ c_can_trnsvr {
+ groups = "c_can_trnsvr_grp";
+ function = "c_can_trnsvr";
+ };
+ };
+
+ c0_can_pmx0: c0_can@0 {
+ c0_can_0 {
+ groups = "c0_can_grp0";
+ function = "c0_can_m0";
+ };
+ };
+
+ c0_can_pmx1: c0_can@1 {
+ c0_can_1 {
+ groups = "c0_can_grp1";
+ function = "c0_can_m1";
+ };
+ };
+
+ c1_can_pmx0: c1_can@0 {
+ c1_can_0 {
+ groups = "c1_can_grp0";
+ function = "c1_can_m0";
+ };
+ };
+
+ c1_can_pmx1: c1_can@1 {
+ c1_can_1 {
+ groups = "c1_can_grp1";
+ function = "c1_can_m1";
+ };
+ };
+
+ c1_can_pmx2: c1_can@2 {
+ c1_can_2 {
+ groups = "c1_can_grp2";
+ function = "c1_can_m2";
+ };
+ };
+
+ ca_audio_lpc_pmx: ca_audio_lpc@0 {
+ ca_audio_lpc {
+ groups = "ca_audio_lpc_grp";
+ function = "ca_audio_lpc";
+ };
+ };
+
+ ca_bt_lpc_pmx: ca_bt_lpc@0 {
+ ca_bt_lpc {
+ groups = "ca_bt_lpc_grp";
+ function = "ca_bt_lpc";
+ };
+ };
+
+ ca_coex_pmx: ca_coex@0 {
+ ca_coex {
+ groups = "ca_coex_grp";
+ function = "ca_coex";
+ };
+ };
+
+ ca_curator_lpc_pmx: ca_curator_lpc@0 {
+ ca_curator_lpc {
+ groups = "ca_curator_lpc_grp";
+ function = "ca_curator_lpc";
+ };
+ };
+
+ ca_pcm_debug_pmx: ca_pcm_debug@0 {
+ ca_pcm_debug {
+ groups = "ca_pcm_debug_grp";
+ function = "ca_pcm_debug";
+ };
+ };
+
+ ca_pio_pmx: ca_pio@0 {
+ ca_pio {
+ groups = "ca_pio_grp";
+ function = "ca_pio";
+ };
+ };
+
+ ca_sdio_debug_pmx: ca_sdio_debug@0 {
+ ca_sdio_debug {
+ groups = "ca_sdio_debug_grp";
+ function = "ca_sdio_debug";
+ };
+ };
+
+ ca_spi_pmx: ca_spi@0 {
+ ca_spi {
+ groups = "ca_spi_grp";
+ function = "ca_spi";
+ };
+ };
+
+ ca_trb_pmx: ca_trb@0 {
+ ca_trb {
+ groups = "ca_trb_grp";
+ function = "ca_trb";
+ };
+ };
+
+ ca_uart_debug_pmx: ca_uart_debug@0 {
+ ca_uart_debug {
+ groups = "ca_uart_debug_grp";
+ function = "ca_uart_debug";
+ };
+ };
+
+ clkc_pmx0: clkc@0 {
+ clkc_0 {
+ groups = "clkc_grp0";
+ function = "clkc_m0";
+ };
+ };
+
+ clkc_pmx1: clkc@1 {
+ clkc_1 {
+ groups = "clkc_grp1";
+ function = "clkc_m1";
+ };
+ };
+
+ gn_gnss_i2c_pmx: gn_gnss_i2c@0 {
+ gn_gnss_i2c {
+ groups = "gn_gnss_i2c_grp";
+ function = "gn_gnss_i2c";
+ };
+ };
+
+ gn_gnss_uart_nopause_pmx: gn_gnss_uart_nopause@0 {
+ gn_gnss_uart_nopause {
+ groups = "gn_gnss_uart_nopause_grp";
+ function = "gn_gnss_uart_nopause";
+ };
+ };
+
+ gn_gnss_uart_pmx: gn_gnss_uart@0 {
+ gn_gnss_uart {
+ groups = "gn_gnss_uart_grp";
+ function = "gn_gnss_uart";
+ };
+ };
+
+ gn_trg_spi_pmx0: gn_trg_spi@0 {
+ gn_trg_spi_0 {
+ groups = "gn_trg_spi_grp0";
+ function = "gn_trg_spi_m0";
+ };
+ };
+
+ gn_trg_spi_pmx1: gn_trg_spi@1 {
+ gn_trg_spi_1 {
+ groups = "gn_trg_spi_grp1";
+ function = "gn_trg_spi_m1";
+ };
+ };
+
+ cvbs_dbg_pmx: cvbs_dbg@0 {
+ cvbs_dbg {
+ groups = "cvbs_dbg_grp";
+ function = "cvbs_dbg";
+ };
+ };
+
+ cvbs_dbg_test_pmx0: cvbs_dbg_test@0 {
+ cvbs_dbg_test_0 {
+ groups = "cvbs_dbg_test_grp0";
+ function = "cvbs_dbg_test_m0";
+ };
+ };
+
+ cvbs_dbg_test_pmx1: cvbs_dbg_test@1 {
+ cvbs_dbg_test_1 {
+ groups = "cvbs_dbg_test_grp1";
+ function = "cvbs_dbg_test_m1";
+ };
+ };
+
+ cvbs_dbg_test_pmx2: cvbs_dbg_test@2 {
+ cvbs_dbg_test_2 {
+ groups = "cvbs_dbg_test_grp2";
+ function = "cvbs_dbg_test_m2";
+ };
+ };
+
+ cvbs_dbg_test_pmx3: cvbs_dbg_test@3 {
+ cvbs_dbg_test_3 {
+ groups = "cvbs_dbg_test_grp3";
+ function = "cvbs_dbg_test_m3";
+ };
+ };
+
+ cvbs_dbg_test_pmx4: cvbs_dbg_test@4 {
+ cvbs_dbg_test_4 {
+ groups = "cvbs_dbg_test_grp4";
+ function = "cvbs_dbg_test_m4";
+ };
+ };
+
+ cvbs_dbg_test_pmx5: cvbs_dbg_test@5 {
+ cvbs_dbg_test_5 {
+ groups = "cvbs_dbg_test_grp5";
+ function = "cvbs_dbg_test_m5";
+ };
+ };
+
+ cvbs_dbg_test_pmx6: cvbs_dbg_test@6 {
+ cvbs_dbg_test_6 {
+ groups = "cvbs_dbg_test_grp6";
+ function = "cvbs_dbg_test_m6";
+ };
+ };
+
+ cvbs_dbg_test_pmx7: cvbs_dbg_test@7 {
+ cvbs_dbg_test_7 {
+ groups = "cvbs_dbg_test_grp7";
+ function = "cvbs_dbg_test_m7";
+ };
+ };
+
+ cvbs_dbg_test_pmx8: cvbs_dbg_test@8 {
+ cvbs_dbg_test_8 {
+ groups = "cvbs_dbg_test_grp8";
+ function = "cvbs_dbg_test_m8";
+ };
+ };
+
+ cvbs_dbg_test_pmx9: cvbs_dbg_test@9 {
+ cvbs_dbg_test_9 {
+ groups = "cvbs_dbg_test_grp9";
+ function = "cvbs_dbg_test_m9";
+ };
+ };
+
+ cvbs_dbg_test_pmx10: cvbs_dbg_test@10 {
+ cvbs_dbg_test_10 {
+ groups = "cvbs_dbg_test_grp10";
+ function = "cvbs_dbg_test_m10";
+ };
+ };
+
+ cvbs_dbg_test_pmx11: cvbs_dbg_test@11 {
+ cvbs_dbg_test_11 {
+ groups = "cvbs_dbg_test_grp11";
+ function = "cvbs_dbg_test_m11";
+ };
+ };
+
+ cvbs_dbg_test_pmx12: cvbs_dbg_test@12 {
+ cvbs_dbg_test_12 {
+ groups = "cvbs_dbg_test_grp12";
+ function = "cvbs_dbg_test_m12";
+ };
+ };
+
+ cvbs_dbg_test_pmx13: cvbs_dbg_test@13 {
+ cvbs_dbg_test_13 {
+ groups = "cvbs_dbg_test_grp13";
+ function = "cvbs_dbg_test_m13";
+ };
+ };
+
+ cvbs_dbg_test_pmx14: cvbs_dbg_test@14 {
+ cvbs_dbg_test_14 {
+ groups = "cvbs_dbg_test_grp14";
+ function = "cvbs_dbg_test_m14";
+ };
+ };
+
+ cvbs_dbg_test_pmx15: cvbs_dbg_test@15 {
+ cvbs_dbg_test_15 {
+ groups = "cvbs_dbg_test_grp15";
+ function = "cvbs_dbg_test_m15";
+ };
+ };
+
+ gn_gnss_power_pmx: gn_gnss_power@0 {
+ gn_gnss_power {
+ groups = "gn_gnss_power_grp";
+ function = "gn_gnss_power";
+ };
+ };
+
+ gn_gnss_sw_status_pmx: gn_gnss_sw_status@0 {
+ gn_gnss_sw_status {
+ groups = "gn_gnss_sw_status_grp";
+ function = "gn_gnss_sw_status";
+ };
+ };
+
+ gn_gnss_eclk_pmx: gn_gnss_eclk@0 {
+ gn_gnss_eclk {
+ groups = "gn_gnss_eclk_grp";
+ function = "gn_gnss_eclk";
+ };
+ };
+
+ gn_gnss_irq1_pmx0: gn_gnss_irq1@0 {
+ gn_gnss_irq1_0 {
+ groups = "gn_gnss_irq1_grp0";
+ function = "gn_gnss_irq1_m0";
+ };
+ };
+
+ gn_gnss_irq2_pmx0: gn_gnss_irq2@0 {
+ gn_gnss_irq2_0 {
+ groups = "gn_gnss_irq2_grp0";
+ function = "gn_gnss_irq2_m0";
+ };
+ };
+
+ gn_gnss_tm_pmx: gn_gnss_tm@0 {
+ gn_gnss_tm {
+ groups = "gn_gnss_tm_grp";
+ function = "gn_gnss_tm";
+ };
+ };
+
+ gn_gnss_tsync_pmx: gn_gnss_tsync@0 {
+ gn_gnss_tsync {
+ groups = "gn_gnss_tsync_grp";
+ function = "gn_gnss_tsync";
+ };
+ };
+
+ gn_io_gnsssys_sw_cfg_pmx: gn_io_gnsssys_sw_cfg@0 {
+ gn_io_gnsssys_sw_cfg {
+ groups = "gn_io_gnsssys_sw_cfg_grp";
+ function = "gn_io_gnsssys_sw_cfg";
+ };
+ };
+
+ gn_trg_pmx0: gn_trg@0 {
+ gn_trg_0 {
+ groups = "gn_trg_grp0";
+ function = "gn_trg_m0";
+ };
+ };
+
+ gn_trg_pmx1: gn_trg@1 {
+ gn_trg_1 {
+ groups = "gn_trg_grp1";
+ function = "gn_trg_m1";
+ };
+ };
+
+ gn_trg_shutdown_pmx0: gn_trg_shutdown@0 {
+ gn_trg_shutdown_0 {
+ groups = "gn_trg_shutdown_grp0";
+ function = "gn_trg_shutdown_m0";
+ };
+ };
+
+ gn_trg_shutdown_pmx1: gn_trg_shutdown@1 {
+ gn_trg_shutdown_1 {
+ groups = "gn_trg_shutdown_grp1";
+ function = "gn_trg_shutdown_m1";
+ };
+ };
+
+ gn_trg_shutdown_pmx2: gn_trg_shutdown@2 {
+ gn_trg_shutdown_2 {
+ groups = "gn_trg_shutdown_grp2";
+ function = "gn_trg_shutdown_m2";
+ };
+ };
+
+ gn_trg_shutdown_pmx3: gn_trg_shutdown@3 {
+ gn_trg_shutdown_3 {
+ groups = "gn_trg_shutdown_grp3";
+ function = "gn_trg_shutdown_m3";
+ };
+ };
+
+ i2c0_pmx: i2c0@0 {
+ i2c0 {
+ groups = "i2c0_grp";
+ function = "i2c0";
+ };
+ };
+
+ i2c1_pmx: i2c1@0 {
+ i2c1 {
+ groups = "i2c1_grp";
+ function = "i2c1";
+ };
+ };
+
+ jtag_pmx0: jtag@0 {
+ jtag_0 {
+ groups = "jtag_grp0";
+ function = "jtag_m0";
+ };
+ };
+
+ ks_kas_spi_pmx0: ks_kas_spi@0 {
+ ks_kas_spi_0 {
+ groups = "ks_kas_spi_grp0";
+ function = "ks_kas_spi_m0";
+ };
+ };
+
+ ld_ldd_pmx: ld_ldd@0 {
+ ld_ldd {
+ groups = "ld_ldd_grp";
+ function = "ld_ldd";
+ };
+ };
+
+ ld_ldd_16bit_pmx: ld_ldd_16bit@0 {
+ ld_ldd_16bit {
+ groups = "ld_ldd_16bit_grp";
+ function = "ld_ldd_16bit";
+ };
+ };
+
+ ld_ldd_fck_pmx: ld_ldd_fck@0 {
+ ld_ldd_fck {
+ groups = "ld_ldd_fck_grp";
+ function = "ld_ldd_fck";
+ };
+ };
+
+ ld_ldd_lck_pmx: ld_ldd_lck@0 {
+ ld_ldd_lck {
+ groups = "ld_ldd_lck_grp";
+ function = "ld_ldd_lck";
+ };
+ };
+
+ lr_lcdrom_pmx: lr_lcdrom@0 {
+ lr_lcdrom {
+ groups = "lr_lcdrom_grp";
+ function = "lr_lcdrom";
+ };
+ };
+
+ lvds_analog_pmx: lvds_analog@0 {
+ lvds_analog {
+ groups = "lvds_analog_grp";
+ function = "lvds_analog";
+ };
+ };
+
+ nd_df_pmx: nd_df@0 {
+ nd_df {
+ groups = "nd_df_grp";
+ function = "nd_df";
+ };
+ };
+
+ nd_df_nowp_pmx: nd_df_nowp@0 {
+ nd_df_nowp {
+ groups = "nd_df_nowp_grp";
+ function = "nd_df_nowp";
+ };
+ };
+
+ ps_pmx: ps@0 {
+ ps {
+ groups = "ps_grp";
+ function = "ps";
+ };
+ };
+
+ pwc_core_on_pmx: pwc_core_on@0 {
+ pwc_core_on {
+ groups = "pwc_core_on_grp";
+ function = "pwc_core_on";
+ };
+ };
+
+ pwc_ext_on_pmx: pwc_ext_on@0 {
+ pwc_ext_on {
+ groups = "pwc_ext_on_grp";
+ function = "pwc_ext_on";
+ };
+ };
+
+ pwc_gpio3_clk_pmx: pwc_gpio3_clk@0 {
+ pwc_gpio3_clk {
+ groups = "pwc_gpio3_clk_grp";
+ function = "pwc_gpio3_clk";
+ };
+ };
+
+ pwc_io_on_pmx: pwc_io_on@0 {
+ pwc_io_on {
+ groups = "pwc_io_on_grp";
+ function = "pwc_io_on";
+ };
+ };
+
+ pwc_lowbatt_b_pmx0: pwc_lowbatt_b@0 {
+ pwc_lowbatt_b_0 {
+ groups = "pwc_lowbatt_b_grp0";
+ function = "pwc_lowbatt_b_m0";
+ };
+ };
+
+ pwc_mem_on_pmx: pwc_mem_on@0 {
+ pwc_mem_on {
+ groups = "pwc_mem_on_grp";
+ function = "pwc_mem_on";
+ };
+ };
+
+ pwc_on_key_b_pmx0: pwc_on_key_b@0 {
+ pwc_on_key_b_0 {
+ groups = "pwc_on_key_b_grp0";
+ function = "pwc_on_key_b_m0";
+ };
+ };
+
+ pwc_wakeup_src0_pmx: pwc_wakeup_src0@0 {
+ pwc_wakeup_src0 {
+ groups = "pwc_wakeup_src0_grp";
+ function = "pwc_wakeup_src0";
+ };
+ };
+
+ pwc_wakeup_src1_pmx: pwc_wakeup_src1@0 {
+ pwc_wakeup_src1 {
+ groups = "pwc_wakeup_src1_grp";
+ function = "pwc_wakeup_src1";
+ };
+ };
+
+ pwc_wakeup_src2_pmx: pwc_wakeup_src2@0 {
+ pwc_wakeup_src2 {
+ groups = "pwc_wakeup_src2_grp";
+ function = "pwc_wakeup_src2";
+ };
+ };
+
+ pwc_wakeup_src3_pmx: pwc_wakeup_src3@0 {
+ pwc_wakeup_src3 {
+ groups = "pwc_wakeup_src3_grp";
+ function = "pwc_wakeup_src3";
+ };
+ };
+
+ pw_cko0_pmx0: pw_cko0@0 {
+ pw_cko0_0 {
+ groups = "pw_cko0_grp0";
+ function = "pw_cko0_m0";
+ };
+ };
+
+ pw_cko0_pmx1: pw_cko0@1 {
+ pw_cko0_1 {
+ groups = "pw_cko0_grp1";
+ function = "pw_cko0_m1";
+ };
+ };
+
+ pw_cko0_pmx2: pw_cko0@2 {
+ pw_cko0_2 {
+ groups = "pw_cko0_grp2";
+ function = "pw_cko0_m2";
+ };
+ };
+
+ pw_cko1_pmx0: pw_cko1@0 {
+ pw_cko1_0 {
+ groups = "pw_cko1_grp0";
+ function = "pw_cko1_m0";
+ };
+ };
+
+ pw_cko1_pmx1: pw_cko1@1 {
+ pw_cko1_1 {
+ groups = "pw_cko1_grp1";
+ function = "pw_cko1_m1";
+ };
+ };
+
+ pw_i2s01_clk_pmx0: pw_i2s01_clk@0 {
+ pw_i2s01_clk_0 {
+ groups = "pw_i2s01_clk_grp0";
+ function = "pw_i2s01_clk_m0";
+ };
+ };
+
+ pw_i2s01_clk_pmx1: pw_i2s01_clk@1 {
+ pw_i2s01_clk_1 {
+ groups = "pw_i2s01_clk_grp1";
+ function = "pw_i2s01_clk_m1";
+ };
+ };
+
+ pw_pwm0_pmx: pw_pwm0@0 {
+ pw_pwm0 {
+ groups = "pw_pwm0_grp";
+ function = "pw_pwm0";
+ };
+ };
+
+ pw_pwm1_pmx: pw_pwm1@0 {
+ pw_pwm1 {
+ groups = "pw_pwm1_grp";
+ function = "pw_pwm1";
+ };
+ };
+
+ pw_pwm2_pmx0: pw_pwm2@0 {
+ pw_pwm2_0 {
+ groups = "pw_pwm2_grp0";
+ function = "pw_pwm2_m0";
+ };
+ };
+
+ pw_pwm2_pmx1: pw_pwm2@1 {
+ pw_pwm2_1 {
+ groups = "pw_pwm2_grp1";
+ function = "pw_pwm2_m1";
+ };
+ };
+
+ pw_pwm3_pmx0: pw_pwm3@0 {
+ pw_pwm3_0 {
+ groups = "pw_pwm3_grp0";
+ function = "pw_pwm3_m0";
+ };
+ };
+
+ pw_pwm3_pmx1: pw_pwm3@1 {
+ pw_pwm3_1 {
+ groups = "pw_pwm3_grp1";
+ function = "pw_pwm3_m1";
+ };
+ };
+
+ pw_pwm_cpu_vol_pmx0: pw_pwm_cpu_vol@0 {
+ pw_pwm_cpu_vol_0 {
+ groups = "pw_pwm_cpu_vol_grp0";
+ function = "pw_pwm_cpu_vol_m0";
+ };
+ };
+
+ pw_pwm_cpu_vol_pmx1: pw_pwm_cpu_vol@1 {
+ pw_pwm_cpu_vol_1 {
+ groups = "pw_pwm_cpu_vol_grp1";
+ function = "pw_pwm_cpu_vol_m1";
+ };
+ };
+
+ pw_backlight_pmx0: pw_backlight@0 {
+ pw_backlight_0 {
+ groups = "pw_backlight_grp0";
+ function = "pw_backlight_m0";
+ };
+ };
+
+ pw_backlight_pmx1: pw_backlight@1 {
+ pw_backlight_1 {
+ groups = "pw_backlight_grp1";
+ function = "pw_backlight_m1";
+ };
+ };
+
+ rg_eth_mac_pmx: rg_eth_mac@0 {
+ rg_eth_mac {
+ groups = "rg_eth_mac_grp";
+ function = "rg_eth_mac";
+ };
+ };
+
+ rg_gmac_phy_intr_n_pmx: rg_gmac_phy_intr_n@0 {
+ rg_gmac_phy_intr_n {
+ groups = "rg_gmac_phy_intr_n_grp";
+ function = "rg_gmac_phy_intr_n";
+ };
+ };
+
+ rg_rgmii_mac_pmx: rg_rgmii_mac@0 {
+ rg_rgmii_mac {
+ groups = "rg_rgmii_mac_grp";
+ function = "rg_rgmii_mac";
+ };
+ };
+
+ rg_rgmii_phy_ref_clk_pmx0: rg_rgmii_phy_ref_clk@0 {
+ rg_rgmii_phy_ref_clk_0 {
+ groups =
+ "rg_rgmii_phy_ref_clk_grp0";
+ function =
+ "rg_rgmii_phy_ref_clk_m0";
+ };
+ };
+
+ rg_rgmii_phy_ref_clk_pmx1: rg_rgmii_phy_ref_clk@1 {
+ rg_rgmii_phy_ref_clk_1 {
+ groups =
+ "rg_rgmii_phy_ref_clk_grp1";
+ function =
+ "rg_rgmii_phy_ref_clk_m1";
+ };
+ };
+
+ sd0_pmx: sd0@0 {
+ sd0 {
+ groups = "sd0_grp";
+ function = "sd0";
+ };
+ };
+
+ sd0_4bit_pmx: sd0_4bit@0 {
+ sd0_4bit {
+ groups = "sd0_4bit_grp";
+ function = "sd0_4bit";
+ };
+ };
+
+ sd1_pmx: sd1@0 {
+ sd1 {
+ groups = "sd1_grp";
+ function = "sd1";
+ };
+ };
+
+ sd1_4bit_pmx0: sd1_4bit@0 {
+ sd1_4bit_0 {
+ groups = "sd1_4bit_grp0";
+ function = "sd1_4bit_m0";
+ };
+ };
+
+ sd1_4bit_pmx1: sd1_4bit@1 {
+ sd1_4bit_1 {
+ groups = "sd1_4bit_grp1";
+ function = "sd1_4bit_m1";
+ };
+ };
+
+ sd2_pmx0: sd2@0 {
+ sd2_0 {
+ groups = "sd2_grp0";
+ function = "sd2_m0";
+ };
+ };
+
+ sd2_no_cdb_pmx0: sd2_no_cdb@0 {
+ sd2_no_cdb_0 {
+ groups = "sd2_no_cdb_grp0";
+ function = "sd2_no_cdb_m0";
+ };
+ };
+
+ sd3_pmx: sd3@0 {
+ sd3 {
+ groups = "sd3_grp";
+ function = "sd3";
+ };
+ };
+
+ sd5_pmx: sd5@0 {
+ sd5 {
+ groups = "sd5_grp";
+ function = "sd5";
+ };
+ };
+
+ sd6_pmx0: sd6@0 {
+ sd6_0 {
+ groups = "sd6_grp0";
+ function = "sd6_m0";
+ };
+ };
+
+ sd6_pmx1: sd6@1 {
+ sd6_1 {
+ groups = "sd6_grp1";
+ function = "sd6_m1";
+ };
+ };
+
+ sp0_ext_ldo_on_pmx: sp0_ext_ldo_on@0 {
+ sp0_ext_ldo_on {
+ groups = "sp0_ext_ldo_on_grp";
+ function = "sp0_ext_ldo_on";
+ };
+ };
+
+ sp0_qspi_pmx: sp0_qspi@0 {
+ sp0_qspi {
+ groups = "sp0_qspi_grp";
+ function = "sp0_qspi";
+ };
+ };
+
+ sp1_spi_pmx: sp1_spi@0 {
+ sp1_spi {
+ groups = "sp1_spi_grp";
+ function = "sp1_spi";
+ };
+ };
+
+ tpiu_trace_pmx: tpiu_trace@0 {
+ tpiu_trace {
+ groups = "tpiu_trace_grp";
+ function = "tpiu_trace";
+ };
+ };
+
+ uart0_pmx: uart0@0 {
+ uart0 {
+ groups = "uart0_grp";
+ function = "uart0";
+ };
+ };
+
+ uart0_nopause_pmx: uart0_nopause@0 {
+ uart0_nopause {
+ groups = "uart0_nopause_grp";
+ function = "uart0_nopause";
+ };
+ };
+
+ uart1_pmx: uart1@0 {
+ uart1 {
+ groups = "uart1_grp";
+ function = "uart1";
+ };
+ };
+
+ uart2_pmx: uart2@0 {
+ uart2 {
+ groups = "uart2_grp";
+ function = "uart2";
+ };
+ };
+
+ uart3_pmx0: uart3@0 {
+ uart3_0 {
+ groups = "uart3_grp0";
+ function = "uart3_m0";
+ };
+ };
+
+ uart3_pmx1: uart3@1 {
+ uart3_1 {
+ groups = "uart3_grp1";
+ function = "uart3_m1";
+ };
+ };
+
+ uart3_pmx2: uart3@2 {
+ uart3_2 {
+ groups = "uart3_grp2";
+ function = "uart3_m2";
+ };
+ };
+
+ uart3_pmx3: uart3@3 {
+ uart3_3 {
+ groups = "uart3_grp3";
+ function = "uart3_m3";
+ };
+ };
+
+ uart3_nopause_pmx0: uart3_nopause@0 {
+ uart3_nopause_0 {
+ groups = "uart3_nopause_grp0";
+ function = "uart3_nopause_m0";
+ };
+ };
+
+ uart3_nopause_pmx1: uart3_nopause@1 {
+ uart3_nopause_1 {
+ groups = "uart3_nopause_grp1";
+ function = "uart3_nopause_m1";
+ };
+ };
+
+ uart4_pmx0: uart4@0 {
+ uart4_0 {
+ groups = "uart4_grp0";
+ function = "uart4_m0";
+ };
+ };
+
+ uart4_pmx1: uart4@1 {
+ uart4_1 {
+ groups = "uart4_grp1";
+ function = "uart4_m1";
+ };
+ };
+
+ uart4_pmx2: uart4@2 {
+ uart4_2 {
+ groups = "uart4_grp2";
+ function = "uart4_m2";
+ };
+ };
+
+ uart4_nopause_pmx: uart4_nopause@0 {
+ uart4_nopause {
+ groups = "uart4_nopause_grp";
+ function = "uart4_nopause";
+ };
+ };
+
+ usb0_drvvbus_pmx: usb0_drvvbus@0 {
+ usb0_drvvbus {
+ groups = "usb0_drvvbus_grp";
+ function = "usb0_drvvbus";
+ };
+ };
+
+ usb1_drvvbus_pmx: usb1_drvvbus@0 {
+ usb1_drvvbus {
+ groups = "usb1_drvvbus_grp";
+ function = "usb1_drvvbus";
+ };
+ };
+
+ visbus_dout_pmx: visbus_dout@0 {
+ visbus_dout {
+ groups = "visbus_dout_grp";
+ function = "visbus_dout";
+ };
+ };
+
+ vi_vip1_pmx: vi_vip1@0 {
+ vi_vip1 {
+ groups = "vi_vip1_grp";
+ function = "vi_vip1";
+ };
+ };
+
+ vi_vip1_ext_pmx: vi_vip1_ext@0 {
+ vi_vip1_ext {
+ groups = "vi_vip1_ext_grp";
+ function = "vi_vip1_ext";
+ };
+ };
+
+ vi_vip1_low8bit_pmx: vi_vip1_low8bit@0 {
+ vi_vip1_low8bit {
+ groups = "vi_vip1_low8bit_grp";
+ function = "vi_vip1_low8bit";
+ };
+ };
+
+ vi_vip1_high8bit_pmx: vi_vip1_high8bit@0 {
+ vi_vip1_high8bit {
+ groups = "vi_vip1_high8bit_grp";
+ function = "vi_vip1_high8bit";
+ };
+ };
};
pmipc {
@@ -356,6 +1375,12 @@
clock-names = "gpio0_io";
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <2>;
+ gpio-ranges = <&pinctrl 0 0 0>,
+ <&pinctrl 32 0 0>;
+ gpio-ranges-group-names = "lvds_gpio_grp",
+ "uart_nand_gpio_grp";
};
nand@17050000 {
@@ -461,11 +1486,22 @@
#interrupt-cells = <2>;
compatible = "sirf,atlas7-gpio";
reg = <0x13300000 0x1000>;
- interrupts = <0 43 0>, <0 44 0>, <0 45 0>;
+ interrupts = <0 43 0>, <0 44 0>,
+ <0 45 0>, <0 46 0>;
clocks = <&car 84>;
clock-names = "gpio1_io";
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <4>;
+ gpio-ranges = <&pinctrl 0 0 0>,
+ <&pinctrl 32 0 0>,
+ <&pinctrl 64 0 0>,
+ <&pinctrl 96 0 0>;
+ gpio-ranges-group-names = "gnss_gpio_grp",
+ "lcd_vip_gpio_grp",
+ "sdio_i2s_gpio_grp",
+ "sp_rgmii_gpio_grp";
};
sd2: sdhci@14200000 {
@@ -744,6 +1780,10 @@
interrupts = <0 47 0>;
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <1>;
+ gpio-ranges = <&pinctrl 0 0 0>;
+ gpio-ranges-group-names = "rtc_gpio_grp";
};
rtc-iobg@18840000 {
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index aa46590..096f68b 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -686,7 +686,8 @@
&dcan1 {
status = "ok";
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&dcan1_pins_default>;
+ pinctrl-names = "default", "sleep", "active";
+ pinctrl-0 = <&dcan1_pins_sleep>;
pinctrl-1 = <&dcan1_pins_sleep>;
+ pinctrl-2 = <&dcan1_pins_default>;
};
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 4e1b605..8037384 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -587,9 +587,10 @@
&dcan1 {
status = "ok";
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&dcan1_pins_default>;
+ pinctrl-names = "default", "sleep", "active";
+ pinctrl-0 = <&dcan1_pins_sleep>;
pinctrl-1 = <&dcan1_pins_sleep>;
+ pinctrl-2 = <&dcan1_pins_default>;
};
&qspi {
diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index 5ab7548..9e2444b 100644
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -1321,7 +1321,7 @@
usb0: gadget@00500000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "atmel,at91sam9rl-udc";
+ compatible = "atmel,sama5d3-udc";
reg = <0x00500000 0x100000
0xf8030000 0x4000>;
interrupts = <33 IRQ_TYPE_LEVEL_HIGH 2>;
diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
index 653a1f8..3ee22ee 100644
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -127,7 +127,7 @@
usb0: gadget@00400000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "atmel,at91sam9rl-udc";
+ compatible = "atmel,sama5d3-udc";
reg = <0x00400000 0x100000
0xfc02c000 0x4000>;
interrupts = <47 IRQ_TYPE_LEVEL_HIGH 2>;
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index 107395c..17f63f7 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -150,6 +150,16 @@
interface-type = "ace";
reg = <0x5000 0x1000>;
};
+
+ pmu@9000 {
+ compatible = "arm,cci-400-pmu,r0";
+ reg = <0x9000 0x5000>;
+ interrupts = <0 105 4>,
+ <0 101 4>,
+ <0 102 4>,
+ <0 103 4>,
+ <0 104 4>;
+ };
};
memory-controller@7ffd0000 {
@@ -187,11 +197,22 @@
<1 10 0xf08>;
};
- pmu {
+ pmu_a15 {
compatible = "arm,cortex-a15-pmu";
interrupts = <0 68 4>,
<0 69 4>;
- interrupt-affinity = <&cpu0>, <&cpu1>;
+ interrupt-affinity = <&cpu0>,
+ <&cpu1>;
+ };
+
+ pmu_a7 {
+ compatible = "arm,cortex-a7-pmu";
+ interrupts = <0 128 4>,
+ <0 129 4>,
+ <0 130 4>;
+ interrupt-affinity = <&cpu2>,
+ <&cpu3>,
+ <&cpu4>;
};
oscclk6a: oscclk6a {
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index fd6a6d2..5fd8df6 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -169,6 +169,7 @@
CONFIG_MTD_M25P80=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_ATMEL=y
+CONFIG_MTD_NAND_BRCMNAND=y
CONFIG_MTD_NAND_DAVINCI=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_UBI=y
@@ -352,7 +353,6 @@
CONFIG_POWER_RESET_GPIO=y
CONFIG_POWER_RESET_GPIO_RESTART=y
CONFIG_POWER_RESET_KEYSTONE=y
-CONFIG_POWER_RESET_SUN6I=y
CONFIG_POWER_RESET_RMOBILE=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM95245=y
diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig
index 8ecba00..7ebc346b 100644
--- a/arch/arm/configs/sunxi_defconfig
+++ b/arch/arm/configs/sunxi_defconfig
@@ -2,6 +2,7 @@
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_PERF_EVENTS=y
+CONFIG_MODULES=y
CONFIG_ARCH_SUNXI=y
CONFIG_SMP=y
CONFIG_NR_CPUS=8
@@ -77,7 +78,6 @@
CONFIG_GPIO_SYSFS=y
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_RESET=y
-CONFIG_POWER_RESET_SUN6I=y
CONFIG_THERMAL=y
CONFIG_CPU_THERMAL=y
CONFIG_WATCHDOG=y
@@ -87,6 +87,10 @@
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_AXP20X=y
CONFIG_REGULATOR_GPIO=y
+CONFIG_FB=y
+CONFIG_FB_SIMPLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1c3938f..4859820 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -140,16 +140,11 @@
* The _caller variety takes a __builtin_return_address(0) value for
* /proc/vmalloc to use - and should only be used in non-inline functions.
*/
-extern void __iomem *__arm_ioremap_pfn_caller(unsigned long, unsigned long,
- size_t, unsigned int, void *);
extern void __iomem *__arm_ioremap_caller(phys_addr_t, size_t, unsigned int,
void *);
-
extern void __iomem *__arm_ioremap_pfn(unsigned long, unsigned long, size_t, unsigned int);
-extern void __iomem *__arm_ioremap(phys_addr_t, size_t, unsigned int);
extern void __iomem *__arm_ioremap_exec(phys_addr_t, size_t, bool cached);
extern void __iounmap(volatile void __iomem *addr);
-extern void __arm_iounmap(volatile void __iomem *addr);
extern void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t,
unsigned int, void *);
@@ -321,21 +316,24 @@
static inline void memset_io(volatile void __iomem *dst, unsigned c,
size_t count)
{
- memset((void __force *)dst, c, count);
+ extern void mmioset(void *, unsigned int, size_t);
+ mmioset((void __force *)dst, c, count);
}
#define memset_io(dst,c,count) memset_io(dst,c,count)
static inline void memcpy_fromio(void *to, const volatile void __iomem *from,
size_t count)
{
- memcpy(to, (const void __force *)from, count);
+ extern void mmiocpy(void *, const void *, size_t);
+ mmiocpy(to, (const void __force *)from, count);
}
#define memcpy_fromio(to,from,count) memcpy_fromio(to,from,count)
static inline void memcpy_toio(volatile void __iomem *to, const void *from,
size_t count)
{
- memcpy((void __force *)to, from, count);
+ extern void mmiocpy(void *, const void *, size_t);
+ mmiocpy((void __force *)to, from, count);
}
#define memcpy_toio(to,from,count) memcpy_toio(to,from,count)
@@ -348,18 +346,61 @@
#endif /* readl */
/*
- * ioremap and friends.
+ * ioremap() and friends.
*
- * ioremap takes a PCI memory address, as specified in
- * Documentation/io-mapping.txt.
+ * ioremap() takes a resource address, and size. Due to the ARM memory
+ * types, it is important to use the correct ioremap() function as each
+ * mapping has specific properties.
*
+ * Function Memory type Cacheability Cache hint
+ * ioremap() Device n/a n/a
+ * ioremap_nocache() Device n/a n/a
+ * ioremap_cache() Normal Writeback Read allocate
+ * ioremap_wc() Normal Non-cacheable n/a
+ * ioremap_wt() Normal Non-cacheable n/a
+ *
+ * All device mappings have the following properties:
+ * - no access speculation
+ * - no repetition (eg, on return from an exception)
+ * - number, order and size of accesses are maintained
+ * - unaligned accesses are "unpredictable"
+ * - writes may be delayed before they hit the endpoint device
+ *
+ * ioremap_nocache() is the same as ioremap() as there are too many device
+ * drivers using this for device registers, and documentation which tells
+ * people to use it for such for this to be any different. This is not a
+ * safe fallback for memory-like mappings, or memory regions where the
+ * compiler may generate unaligned accesses - eg, via inlining its own
+ * memcpy.
+ *
+ * All normal memory mappings have the following properties:
+ * - reads can be repeated with no side effects
+ * - repeated reads return the last value written
+ * - reads can fetch additional locations without side effects
+ * - writes can be repeated (in certain cases) with no side effects
+ * - writes can be merged before accessing the target
+ * - unaligned accesses can be supported
+ * - ordering is not guaranteed without explicit dependencies or barrier
+ * instructions
+ * - writes may be delayed before they hit the endpoint memory
+ *
+ * The cache hint is only a performance hint: CPUs may alias these hints.
+ * Eg, a CPU not implementing read allocate but implementing write allocate
+ * will provide a write allocate mapping instead.
*/
-#define ioremap(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
-#define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
-#define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED)
-#define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC)
-#define ioremap_wt(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
-#define iounmap __arm_iounmap
+void __iomem *ioremap(resource_size_t res_cookie, size_t size);
+#define ioremap ioremap
+#define ioremap_nocache ioremap
+
+void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size);
+#define ioremap_cache ioremap_cache
+
+void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size);
+#define ioremap_wc ioremap_wc
+#define ioremap_wt ioremap_wc
+
+void iounmap(volatile void __iomem *iomem_cookie);
+#define iounmap iounmap
/*
* io{read,write}{16,32}be() macros
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 3a72d69..6f225ac 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -275,7 +275,7 @@
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
-#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
+#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
extern phys_addr_t (*arch_virt_to_idmap)(unsigned long x);
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index bfd662e..aeddd28 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -129,7 +129,36 @@
/*
* These are the memory types, defined to be compatible with
- * pre-ARMv6 CPUs cacheable and bufferable bits: XXCB
+ * pre-ARMv6 CPUs cacheable and bufferable bits: n/a,n/a,C,B
+ * ARMv6+ without TEX remapping, they are a table index.
+ * ARMv6+ with TEX remapping, they correspond to n/a,TEX(0),C,B
+ *
+ * MT type Pre-ARMv6 ARMv6+ type / cacheable status
+ * UNCACHED Uncached Strongly ordered
+ * BUFFERABLE Bufferable Normal memory / non-cacheable
+ * WRITETHROUGH Writethrough Normal memory / write through
+ * WRITEBACK Writeback Normal memory / write back, read alloc
+ * MINICACHE Minicache N/A
+ * WRITEALLOC Writeback Normal memory / write back, write alloc
+ * DEV_SHARED Uncached Device memory (shared)
+ * DEV_NONSHARED Uncached Device memory (non-shared)
+ * DEV_WC Bufferable Normal memory / non-cacheable
+ * DEV_CACHED Writeback Normal memory / write back, read alloc
+ * VECTORS Variable Normal memory / variable
+ *
+ * All normal memory mappings have the following properties:
+ * - reads can be repeated with no side effects
+ * - repeated reads return the last value written
+ * - reads can fetch additional locations without side effects
+ * - writes can be repeated (in certain cases) with no side effects
+ * - writes can be merged before accessing the target
+ * - unaligned accesses can be supported
+ *
+ * All device mappings have the following properties:
+ * - no access speculation
+ * - no repetition (eg, on return from an exception)
+ * - number, order and size of accesses are maintained
+ * - unaligned accesses are "unpredictable"
*/
#define L_PTE_MT_UNCACHED (_AT(pteval_t, 0x00) << 2) /* 0000 */
#define L_PTE_MT_BUFFERABLE (_AT(pteval_t, 0x01) << 2) /* 0001 */
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index a88671c..5e5a51a 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -50,6 +50,9 @@
extern void fpundefinstr(void);
+void mmioset(void *, unsigned int, size_t);
+void mmiocpy(void *, const void *, size_t);
+
/* platform dependent support */
EXPORT_SYMBOL(arm_delay_ops);
@@ -88,6 +91,9 @@
EXPORT_SYMBOL(memchr);
EXPORT_SYMBOL(__memzero);
+EXPORT_SYMBOL(mmioset);
+EXPORT_SYMBOL(mmiocpy);
+
#ifdef CONFIG_MMU
EXPORT_SYMBOL(copy_page);
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 7dac308..cb4fb1e 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -410,7 +410,7 @@
zero_fp
.if \trace
-#ifdef CONFIG_IRQSOFF_TRACER
+#ifdef CONFIG_TRACE_IRQFLAGS
bl trace_hardirqs_off
#endif
ct_user_exit save = 0
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 90dfbed..3d6b782 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -578,7 +578,7 @@
struct pt_regs *old_regs = set_irq_regs(regs);
if ((unsigned)ipinr < NR_IPI) {
- trace_ipi_entry(ipi_types[ipinr]);
+ trace_ipi_entry_rcuidle(ipi_types[ipinr]);
__inc_irq_stat(cpu, ipi_irqs[ipinr]);
}
@@ -637,7 +637,7 @@
}
if ((unsigned)ipinr < NR_IPI)
- trace_ipi_exit(ipi_types[ipinr]);
+ trace_ipi_exit_rcuidle(ipi_types[ipinr]);
set_irq_regs(old_regs);
}
diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S
index 7797e81..64111bd 100644
--- a/arch/arm/lib/memcpy.S
+++ b/arch/arm/lib/memcpy.S
@@ -61,8 +61,10 @@
/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */
+ENTRY(mmiocpy)
ENTRY(memcpy)
#include "copy_template.S"
ENDPROC(memcpy)
+ENDPROC(mmiocpy)
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
index a4ee97b..3c65e3b 100644
--- a/arch/arm/lib/memset.S
+++ b/arch/arm/lib/memset.S
@@ -16,6 +16,7 @@
.text
.align 5
+ENTRY(mmioset)
ENTRY(memset)
UNWIND( .fnstart )
ands r3, r0, #3 @ 1 unaligned?
@@ -133,3 +134,4 @@
b 1b
UNWIND( .fnend )
ENDPROC(memset)
+ENDPROC(mmioset)
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index e9184fe..0ac9e4b3 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -19,7 +19,6 @@
select ARCH_REQUIRE_GPIOLIB
select ARM_AMBA
select PINCTRL
- select MTD_NAND_BRCMNAND
help
This enables support for systems based on Broadcom IPROC architected SoCs.
The IPROC complex contains one or more ARM CPUs along with common
diff --git a/arch/arm/mach-dove/include/mach/irqs.h b/arch/arm/mach-dove/include/mach/irqs.h
index 03d401d..3f29e6bc 100644
--- a/arch/arm/mach-dove/include/mach/irqs.h
+++ b/arch/arm/mach-dove/include/mach/irqs.h
@@ -14,73 +14,73 @@
/*
* Dove Low Interrupt Controller
*/
-#define IRQ_DOVE_BRIDGE 0
-#define IRQ_DOVE_H2C 1
-#define IRQ_DOVE_C2H 2
-#define IRQ_DOVE_NAND 3
-#define IRQ_DOVE_PDMA 4
-#define IRQ_DOVE_SPI1 5
-#define IRQ_DOVE_SPI0 6
-#define IRQ_DOVE_UART_0 7
-#define IRQ_DOVE_UART_1 8
-#define IRQ_DOVE_UART_2 9
-#define IRQ_DOVE_UART_3 10
-#define IRQ_DOVE_I2C 11
-#define IRQ_DOVE_GPIO_0_7 12
-#define IRQ_DOVE_GPIO_8_15 13
-#define IRQ_DOVE_GPIO_16_23 14
-#define IRQ_DOVE_PCIE0_ERR 15
-#define IRQ_DOVE_PCIE0 16
-#define IRQ_DOVE_PCIE1_ERR 17
-#define IRQ_DOVE_PCIE1 18
-#define IRQ_DOVE_I2S0 19
-#define IRQ_DOVE_I2S0_ERR 20
-#define IRQ_DOVE_I2S1 21
-#define IRQ_DOVE_I2S1_ERR 22
-#define IRQ_DOVE_USB_ERR 23
-#define IRQ_DOVE_USB0 24
-#define IRQ_DOVE_USB1 25
-#define IRQ_DOVE_GE00_RX 26
-#define IRQ_DOVE_GE00_TX 27
-#define IRQ_DOVE_GE00_MISC 28
-#define IRQ_DOVE_GE00_SUM 29
-#define IRQ_DOVE_GE00_ERR 30
-#define IRQ_DOVE_CRYPTO 31
+#define IRQ_DOVE_BRIDGE (1 + 0)
+#define IRQ_DOVE_H2C (1 + 1)
+#define IRQ_DOVE_C2H (1 + 2)
+#define IRQ_DOVE_NAND (1 + 3)
+#define IRQ_DOVE_PDMA (1 + 4)
+#define IRQ_DOVE_SPI1 (1 + 5)
+#define IRQ_DOVE_SPI0 (1 + 6)
+#define IRQ_DOVE_UART_0 (1 + 7)
+#define IRQ_DOVE_UART_1 (1 + 8)
+#define IRQ_DOVE_UART_2 (1 + 9)
+#define IRQ_DOVE_UART_3 (1 + 10)
+#define IRQ_DOVE_I2C (1 + 11)
+#define IRQ_DOVE_GPIO_0_7 (1 + 12)
+#define IRQ_DOVE_GPIO_8_15 (1 + 13)
+#define IRQ_DOVE_GPIO_16_23 (1 + 14)
+#define IRQ_DOVE_PCIE0_ERR (1 + 15)
+#define IRQ_DOVE_PCIE0 (1 + 16)
+#define IRQ_DOVE_PCIE1_ERR (1 + 17)
+#define IRQ_DOVE_PCIE1 (1 + 18)
+#define IRQ_DOVE_I2S0 (1 + 19)
+#define IRQ_DOVE_I2S0_ERR (1 + 20)
+#define IRQ_DOVE_I2S1 (1 + 21)
+#define IRQ_DOVE_I2S1_ERR (1 + 22)
+#define IRQ_DOVE_USB_ERR (1 + 23)
+#define IRQ_DOVE_USB0 (1 + 24)
+#define IRQ_DOVE_USB1 (1 + 25)
+#define IRQ_DOVE_GE00_RX (1 + 26)
+#define IRQ_DOVE_GE00_TX (1 + 27)
+#define IRQ_DOVE_GE00_MISC (1 + 28)
+#define IRQ_DOVE_GE00_SUM (1 + 29)
+#define IRQ_DOVE_GE00_ERR (1 + 30)
+#define IRQ_DOVE_CRYPTO (1 + 31)
/*
* Dove High Interrupt Controller
*/
-#define IRQ_DOVE_AC97 32
-#define IRQ_DOVE_PMU 33
-#define IRQ_DOVE_CAM 34
-#define IRQ_DOVE_SDIO0 35
-#define IRQ_DOVE_SDIO1 36
-#define IRQ_DOVE_SDIO0_WAKEUP 37
-#define IRQ_DOVE_SDIO1_WAKEUP 38
-#define IRQ_DOVE_XOR_00 39
-#define IRQ_DOVE_XOR_01 40
-#define IRQ_DOVE_XOR0_ERR 41
-#define IRQ_DOVE_XOR_10 42
-#define IRQ_DOVE_XOR_11 43
-#define IRQ_DOVE_XOR1_ERR 44
-#define IRQ_DOVE_LCD_DCON 45
-#define IRQ_DOVE_LCD1 46
-#define IRQ_DOVE_LCD0 47
-#define IRQ_DOVE_GPU 48
-#define IRQ_DOVE_PERFORM_MNTR 49
-#define IRQ_DOVE_VPRO_DMA1 51
-#define IRQ_DOVE_SSP_TIMER 54
-#define IRQ_DOVE_SSP 55
-#define IRQ_DOVE_MC_L2_ERR 56
-#define IRQ_DOVE_CRYPTO_ERR 59
-#define IRQ_DOVE_GPIO_24_31 60
-#define IRQ_DOVE_HIGH_GPIO 61
-#define IRQ_DOVE_SATA 62
+#define IRQ_DOVE_AC97 (1 + 32)
+#define IRQ_DOVE_PMU (1 + 33)
+#define IRQ_DOVE_CAM (1 + 34)
+#define IRQ_DOVE_SDIO0 (1 + 35)
+#define IRQ_DOVE_SDIO1 (1 + 36)
+#define IRQ_DOVE_SDIO0_WAKEUP (1 + 37)
+#define IRQ_DOVE_SDIO1_WAKEUP (1 + 38)
+#define IRQ_DOVE_XOR_00 (1 + 39)
+#define IRQ_DOVE_XOR_01 (1 + 40)
+#define IRQ_DOVE_XOR0_ERR (1 + 41)
+#define IRQ_DOVE_XOR_10 (1 + 42)
+#define IRQ_DOVE_XOR_11 (1 + 43)
+#define IRQ_DOVE_XOR1_ERR (1 + 44)
+#define IRQ_DOVE_LCD_DCON (1 + 45)
+#define IRQ_DOVE_LCD1 (1 + 46)
+#define IRQ_DOVE_LCD0 (1 + 47)
+#define IRQ_DOVE_GPU (1 + 48)
+#define IRQ_DOVE_PERFORM_MNTR (1 + 49)
+#define IRQ_DOVE_VPRO_DMA1 (1 + 51)
+#define IRQ_DOVE_SSP_TIMER (1 + 54)
+#define IRQ_DOVE_SSP (1 + 55)
+#define IRQ_DOVE_MC_L2_ERR (1 + 56)
+#define IRQ_DOVE_CRYPTO_ERR (1 + 59)
+#define IRQ_DOVE_GPIO_24_31 (1 + 60)
+#define IRQ_DOVE_HIGH_GPIO (1 + 61)
+#define IRQ_DOVE_SATA (1 + 62)
/*
* DOVE General Purpose Pins
*/
-#define IRQ_DOVE_GPIO_START 64
+#define IRQ_DOVE_GPIO_START 65
#define NR_GPIO_IRQS 64
/*
diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index 4a5a7ae..df0223f 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -126,14 +126,14 @@
stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_LOW_OFF);
stat &= readl_relaxed(dove_irq_base + IRQ_MASK_LOW_OFF);
if (stat) {
- unsigned int hwirq = __fls(stat);
+ unsigned int hwirq = 1 + __fls(stat);
handle_IRQ(hwirq, regs);
return;
}
stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_HIGH_OFF);
stat &= readl_relaxed(dove_irq_base + IRQ_MASK_HIGH_OFF);
if (stat) {
- unsigned int hwirq = 32 + __fls(stat);
+ unsigned int hwirq = 33 + __fls(stat);
handle_IRQ(hwirq, regs);
return;
}
@@ -144,8 +144,8 @@
{
int i;
- orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
- orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
+ orion_irq_init(1, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
+ orion_irq_init(33, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
#ifdef CONFIG_MULTI_IRQ_HANDLER
set_handle_irq(dove_legacy_handle_irq);
diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c
index 6dfd4ab..301ab38 100644
--- a/arch/arm/mach-mvebu/pm-board.c
+++ b/arch/arm/mach-mvebu/pm-board.c
@@ -43,6 +43,9 @@
for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++)
ackcmd |= BIT(pic_raw_gpios[i]);
+ srcmd = cpu_to_le32(srcmd);
+ ackcmd = cpu_to_le32(ackcmd);
+
/*
* Wait a while, the PIC needs quite a bit of time between the
* two GPIO commands.
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index f1a68c6..903c85b 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -274,8 +274,5 @@
smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o
obj-y += $(smsc911x-m) $(smsc911x-y)
-ifneq ($(CONFIG_HWSPINLOCK_OMAP),)
-obj-y += hwspinlock.o
-endif
obj-y += common-board-devices.o twl-common.o dss-common.o
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index e1a56d8..1ed4be1 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -117,7 +117,6 @@
u8 revision = dma_read(REVISION, 0) & 0xff;
printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",
revision >> 4, revision & 0xf);
- return;
}
static unsigned configure_dma_errata(void)
diff --git a/arch/arm/mach-omap2/hwspinlock.c b/arch/arm/mach-omap2/hwspinlock.c
deleted file mode 100644
index ef175ac..0000000
--- a/arch/arm/mach-omap2/hwspinlock.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * OMAP hardware spinlock device initialization
- *
- * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
- *
- * Contact: Simon Que <sque@ti.com>
- * Hari Kanigeri <h-kanigeri2@ti.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/hwspinlock.h>
-
-#include "soc.h"
-#include "omap_hwmod.h"
-#include "omap_device.h"
-
-static struct hwspinlock_pdata omap_hwspinlock_pdata __initdata = {
- .base_id = 0,
-};
-
-static int __init hwspinlocks_init(void)
-{
- int retval = 0;
- struct omap_hwmod *oh;
- struct platform_device *pdev;
- const char *oh_name = "spinlock";
- const char *dev_name = "omap_hwspinlock";
-
- /*
- * Hwmod lookup will fail in case our platform doesn't support the
- * hardware spinlock module, so it is safe to run this initcall
- * on all omaps
- */
- oh = omap_hwmod_lookup(oh_name);
- if (oh == NULL)
- return -EINVAL;
-
- pdev = omap_device_build(dev_name, 0, oh, &omap_hwspinlock_pdata,
- sizeof(struct hwspinlock_pdata));
- if (IS_ERR(pdev)) {
- pr_err("Can't build omap_device for %s:%s\n", dev_name,
- oh_name);
- retval = PTR_ERR(pdev);
- }
-
- return retval;
-}
-/* early board code might need to reserve specific hwspinlock instances */
-omap_postcore_initcall(hwspinlocks_init);
diff --git a/arch/arm/mach-prima2/Kconfig b/arch/arm/mach-prima2/Kconfig
index e03d8b5..9ab8932 100644
--- a/arch/arm/mach-prima2/Kconfig
+++ b/arch/arm/mach-prima2/Kconfig
@@ -4,6 +4,7 @@
select ARCH_REQUIRE_GPIOLIB
select GENERIC_IRQ_CHIP
select NO_IOPORT_MAP
+ select REGMAP
select PINCTRL
select PINCTRL_SIRF
help
diff --git a/arch/arm/mach-prima2/rtciobrg.c b/arch/arm/mach-prima2/rtciobrg.c
index 8f66d8f..d4852d2 100644
--- a/arch/arm/mach-prima2/rtciobrg.c
+++ b/arch/arm/mach-prima2/rtciobrg.c
@@ -1,5 +1,5 @@
/*
- * RTC I/O Bridge interfaces for CSR SiRFprimaII
+ * RTC I/O Bridge interfaces for CSR SiRFprimaII/atlas7
* ARM access the registers of SYSRTC, GPSRTC and PWRC through this module
*
* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
@@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
+#include <linux/regmap.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
@@ -66,6 +67,7 @@
{
unsigned long flags, val;
+ /* TODO: add hwspinlock to sync with M3 */
spin_lock_irqsave(&rtciobrg_lock, flags);
val = __sirfsoc_rtc_iobrg_readl(addr);
@@ -90,6 +92,7 @@
{
unsigned long flags;
+ /* TODO: add hwspinlock to sync with M3 */
spin_lock_irqsave(&rtciobrg_lock, flags);
sirfsoc_rtc_iobrg_pre_writel(val, addr);
@@ -102,6 +105,45 @@
}
EXPORT_SYMBOL_GPL(sirfsoc_rtc_iobrg_writel);
+
+static int regmap_iobg_regwrite(void *context, unsigned int reg,
+ unsigned int val)
+{
+ sirfsoc_rtc_iobrg_writel(val, reg);
+ return 0;
+}
+
+static int regmap_iobg_regread(void *context, unsigned int reg,
+ unsigned int *val)
+{
+ *val = (u32)sirfsoc_rtc_iobrg_readl(reg);
+ return 0;
+}
+
+static struct regmap_bus regmap_iobg = {
+ .reg_write = regmap_iobg_regwrite,
+ .reg_read = regmap_iobg_regread,
+};
+
+/**
+ * devm_regmap_init_iobg(): Initialise managed register map
+ *
+ * @iobg: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer
+ * to a struct regmap. The regmap will be automatically freed by the
+ * device management code.
+ */
+struct regmap *devm_regmap_init_iobg(struct device *dev,
+ const struct regmap_config *config)
+{
+ const struct regmap_bus *bus = ®map_iobg;
+
+ return devm_regmap_init(dev, bus, dev, config);
+}
+EXPORT_SYMBOL_GPL(devm_regmap_init_iobg);
+
static const struct of_device_id rtciobrg_ids[] = {
{ .compatible = "sirf,prima2-rtciobg" },
{}
@@ -132,7 +174,7 @@
}
postcore_initcall(sirfsoc_rtciobrg_init);
-MODULE_AUTHOR("Zhiwu Song <zhiwu.song@csr.com>, "
- "Barry Song <baohua.song@csr.com>");
+MODULE_AUTHOR("Zhiwu Song <zhiwu.song@csr.com>");
+MODULE_AUTHOR("Barry Song <baohua.song@csr.com>");
MODULE_DESCRIPTION("CSR SiRFprimaII rtc io bridge");
MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 81502b9..4efe2d4 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -35,7 +35,7 @@
select SUN5I_HSTIMER
config MACH_SUN8I
- bool "Allwinner A23 (sun8i) SoCs support"
+ bool "Allwinner sun8i Family SoCs support"
default ARCH_SUNXI
select ARM_GIC
select MFD_SUN6I_PRCM
diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index 1bc811a..65bab28 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -67,10 +67,13 @@
static const char * const sun8i_board_dt_compat[] = {
"allwinner,sun8i-a23",
+ "allwinner,sun8i-a33",
+ "allwinner,sun8i-h3",
NULL,
};
-DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i (A23) Family")
+DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
+ .init_time = sun6i_timer_init,
.dt_compat = sun8i_board_dt_compat,
.init_late = sunxi_dt_cpufreq_init,
MACHINE_END
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index d1e5ad7..0c81056 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -255,7 +255,7 @@
}
#endif
-void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
+static void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
unsigned long offset, size_t size, unsigned int mtype, void *caller)
{
const struct mem_type *type;
@@ -363,7 +363,7 @@
unsigned int mtype)
{
return __arm_ioremap_pfn_caller(pfn, offset, size, mtype,
- __builtin_return_address(0));
+ __builtin_return_address(0));
}
EXPORT_SYMBOL(__arm_ioremap_pfn);
@@ -371,13 +371,26 @@
unsigned int, void *) =
__arm_ioremap_caller;
-void __iomem *
-__arm_ioremap(phys_addr_t phys_addr, size_t size, unsigned int mtype)
+void __iomem *ioremap(resource_size_t res_cookie, size_t size)
{
- return arch_ioremap_caller(phys_addr, size, mtype,
- __builtin_return_address(0));
+ return arch_ioremap_caller(res_cookie, size, MT_DEVICE,
+ __builtin_return_address(0));
}
-EXPORT_SYMBOL(__arm_ioremap);
+EXPORT_SYMBOL(ioremap);
+
+void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size)
+{
+ return arch_ioremap_caller(res_cookie, size, MT_DEVICE_CACHED,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_cache);
+
+void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size)
+{
+ return arch_ioremap_caller(res_cookie, size, MT_DEVICE_WC,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_wc);
/*
* Remap an arbitrary physical address space into the kernel virtual
@@ -431,11 +444,11 @@
void (*arch_iounmap)(volatile void __iomem *) = __iounmap;
-void __arm_iounmap(volatile void __iomem *io_addr)
+void iounmap(volatile void __iomem *cookie)
{
- arch_iounmap(io_addr);
+ arch_iounmap(cookie);
}
-EXPORT_SYMBOL(__arm_iounmap);
+EXPORT_SYMBOL(iounmap);
#ifdef CONFIG_PCI
static int pci_ioremap_mem_type = MT_DEVICE;
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6ca7d9a..870838a 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1072,6 +1072,7 @@
int highmem = 0;
phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1;
struct memblock_region *reg;
+ bool should_use_highmem = false;
for_each_memblock(memory, reg) {
phys_addr_t block_start = reg->base;
@@ -1090,6 +1091,7 @@
pr_notice("Ignoring RAM at %pa-%pa (!CONFIG_HIGHMEM)\n",
&block_start, &block_end);
memblock_remove(reg->base, reg->size);
+ should_use_highmem = true;
continue;
}
@@ -1100,6 +1102,7 @@
&block_start, &block_end, &vmalloc_limit);
memblock_remove(vmalloc_limit, overlap_size);
block_end = vmalloc_limit;
+ should_use_highmem = true;
}
}
@@ -1134,6 +1137,9 @@
}
}
+ if (should_use_highmem)
+ pr_notice("Consider using a HIGHMEM enabled kernel.\n");
+
high_memory = __va(arm_lowmem_limit - 1) + 1;
/*
@@ -1494,6 +1500,7 @@
build_mem_type_table();
prepare_page_table();
map_lowmem();
+ memblock_set_current_limit(arm_lowmem_limit);
dma_contiguous_remap();
devicemaps_init(mdesc);
kmap_init();
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index afd7e05..1dd1093 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -351,30 +351,43 @@
}
EXPORT_SYMBOL(__arm_ioremap_pfn);
-void __iomem *__arm_ioremap_pfn_caller(unsigned long pfn, unsigned long offset,
- size_t size, unsigned int mtype, void *caller)
-{
- return __arm_ioremap_pfn(pfn, offset, size, mtype);
-}
-
-void __iomem *__arm_ioremap(phys_addr_t phys_addr, size_t size,
- unsigned int mtype)
-{
- return (void __iomem *)phys_addr;
-}
-EXPORT_SYMBOL(__arm_ioremap);
-
-void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t, unsigned int, void *);
-
void __iomem *__arm_ioremap_caller(phys_addr_t phys_addr, size_t size,
unsigned int mtype, void *caller)
{
- return __arm_ioremap(phys_addr, size, mtype);
+ return (void __iomem *)phys_addr;
}
+void __iomem * (*arch_ioremap_caller)(phys_addr_t, size_t, unsigned int, void *);
+
+void __iomem *ioremap(resource_size_t res_cookie, size_t size)
+{
+ return __arm_ioremap_caller(res_cookie, size, MT_DEVICE,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap);
+
+void __iomem *ioremap_cache(resource_size_t res_cookie, size_t size)
+{
+ return __arm_ioremap_caller(res_cookie, size, MT_DEVICE_CACHED,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_cache);
+
+void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size)
+{
+ return __arm_ioremap_caller(res_cookie, size, MT_DEVICE_WC,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_wc);
+
+void __iounmap(volatile void __iomem *addr)
+{
+}
+EXPORT_SYMBOL(__iounmap);
+
void (*arch_iounmap)(volatile void __iomem *);
-void __arm_iounmap(volatile void __iomem *addr)
+void iounmap(volatile void __iomem *addr)
{
}
-EXPORT_SYMBOL(__arm_iounmap);
+EXPORT_SYMBOL(iounmap);
diff --git a/arch/arm/vdso/vdsomunge.c b/arch/arm/vdso/vdsomunge.c
index 9005b07..aedec81 100644
--- a/arch/arm/vdso/vdsomunge.c
+++ b/arch/arm/vdso/vdsomunge.c
@@ -45,13 +45,11 @@
* it does.
*/
-#define _GNU_SOURCE
-
#include <byteswap.h>
#include <elf.h>
#include <errno.h>
-#include <error.h>
#include <fcntl.h>
+#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
@@ -82,11 +80,25 @@
#define EF_ARM_ABI_FLOAT_HARD 0x400
#endif
+static int failed;
+static const char *argv0;
static const char *outfile;
+static void fail(const char *fmt, ...)
+{
+ va_list ap;
+
+ failed = 1;
+ fprintf(stderr, "%s: ", argv0);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
static void cleanup(void)
{
- if (error_message_count > 0 && outfile != NULL)
+ if (failed && outfile != NULL)
unlink(outfile);
}
@@ -119,68 +131,66 @@
int infd;
atexit(cleanup);
+ argv0 = argv[0];
if (argc != 3)
- error(EXIT_FAILURE, 0, "Usage: %s [infile] [outfile]", argv[0]);
+ fail("Usage: %s [infile] [outfile]\n", argv[0]);
infile = argv[1];
outfile = argv[2];
infd = open(infile, O_RDONLY);
if (infd < 0)
- error(EXIT_FAILURE, errno, "Cannot open %s", infile);
+ fail("Cannot open %s: %s\n", infile, strerror(errno));
if (fstat(infd, &stat) != 0)
- error(EXIT_FAILURE, errno, "Failed stat for %s", infile);
+ fail("Failed stat for %s: %s\n", infile, strerror(errno));
inbuf = mmap(NULL, stat.st_size, PROT_READ, MAP_PRIVATE, infd, 0);
if (inbuf == MAP_FAILED)
- error(EXIT_FAILURE, errno, "Failed to map %s", infile);
+ fail("Failed to map %s: %s\n", infile, strerror(errno));
close(infd);
inhdr = inbuf;
if (memcmp(&inhdr->e_ident, ELFMAG, SELFMAG) != 0)
- error(EXIT_FAILURE, 0, "Not an ELF file");
+ fail("Not an ELF file\n");
if (inhdr->e_ident[EI_CLASS] != ELFCLASS32)
- error(EXIT_FAILURE, 0, "Unsupported ELF class");
+ fail("Unsupported ELF class\n");
swap = inhdr->e_ident[EI_DATA] != HOST_ORDER;
if (read_elf_half(inhdr->e_type, swap) != ET_DYN)
- error(EXIT_FAILURE, 0, "Not a shared object");
+ fail("Not a shared object\n");
- if (read_elf_half(inhdr->e_machine, swap) != EM_ARM) {
- error(EXIT_FAILURE, 0, "Unsupported architecture %#x",
- inhdr->e_machine);
- }
+ if (read_elf_half(inhdr->e_machine, swap) != EM_ARM)
+ fail("Unsupported architecture %#x\n", inhdr->e_machine);
e_flags = read_elf_word(inhdr->e_flags, swap);
if (EF_ARM_EABI_VERSION(e_flags) != EF_ARM_EABI_VER5) {
- error(EXIT_FAILURE, 0, "Unsupported EABI version %#x",
- EF_ARM_EABI_VERSION(e_flags));
+ fail("Unsupported EABI version %#x\n",
+ EF_ARM_EABI_VERSION(e_flags));
}
if (e_flags & EF_ARM_ABI_FLOAT_HARD)
- error(EXIT_FAILURE, 0,
- "Unexpected hard-float flag set in e_flags");
+ fail("Unexpected hard-float flag set in e_flags\n");
clear_soft_float = !!(e_flags & EF_ARM_ABI_FLOAT_SOFT);
outfd = open(outfile, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
if (outfd < 0)
- error(EXIT_FAILURE, errno, "Cannot open %s", outfile);
+ fail("Cannot open %s: %s\n", outfile, strerror(errno));
if (ftruncate(outfd, stat.st_size) != 0)
- error(EXIT_FAILURE, errno, "Cannot truncate %s", outfile);
+ fail("Cannot truncate %s: %s\n", outfile, strerror(errno));
outbuf = mmap(NULL, stat.st_size, PROT_READ | PROT_WRITE, MAP_SHARED,
outfd, 0);
if (outbuf == MAP_FAILED)
- error(EXIT_FAILURE, errno, "Failed to map %s", outfile);
+ fail("Failed to map %s: %s\n", outfile, strerror(errno));
close(outfd);
@@ -195,7 +205,7 @@
}
if (msync(outbuf, stat.st_size, MS_SYNC) != 0)
- error(EXIT_FAILURE, errno, "Failed to sync %s", outfile);
+ fail("Failed to sync %s: %s\n", outfile, strerror(errno));
return EXIT_SUCCESS;
}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0f6edb1..318175f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -23,9 +23,9 @@
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
- select EDAC_SUPPORT
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS
+ select EDAC_SUPPORT
select GENERIC_ALLOCATOR
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
diff --git a/arch/arm64/boot/dts/apm/apm-mustang.dts b/arch/arm64/boot/dts/apm/apm-mustang.dts
index 83578e7..4c55833 100644
--- a/arch/arm64/boot/dts/apm/apm-mustang.dts
+++ b/arch/arm64/boot/dts/apm/apm-mustang.dts
@@ -23,6 +23,16 @@
device_type = "memory";
reg = < 0x1 0x00000000 0x0 0x80000000 >; /* Updated by bootloader */
};
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ button@1 {
+ label = "POWER";
+ linux,code = <116>;
+ linux,input-type = <0x1>;
+ interrupts = <0x0 0x2d 0x1>;
+ };
+ };
};
&pcie0clk {
diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index 0bb287c..0689c3f 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -717,6 +717,19 @@
phy-names = "sata-phy";
};
+ sbgpio: sbgpio@17001000{
+ compatible = "apm,xgene-gpio-sb";
+ reg = <0x0 0x17001000 0x0 0x400>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupts = <0x0 0x28 0x1>,
+ <0x0 0x29 0x1>,
+ <0x0 0x2a 0x1>,
+ <0x0 0x2b 0x1>,
+ <0x0 0x2c 0x1>,
+ <0x0 0x2d 0x1>;
+ };
+
rtc: rtc@10510000 {
compatible = "apm,xgene-rtc";
reg = <0x0 0x10510000 0x0 0x400>;
diff --git a/arch/arm64/boot/dts/arm/Makefile b/arch/arm64/boot/dts/arm/Makefile
index c5c98b9..bb3c072 100644
--- a/arch/arm64/boot/dts/arm/Makefile
+++ b/arch/arm64/boot/dts/arm/Makefile
@@ -1,6 +1,7 @@
dtb-$(CONFIG_ARCH_VEXPRESS) += foundation-v8.dtb
dtb-$(CONFIG_ARCH_VEXPRESS) += juno.dtb juno-r1.dtb
dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb
+dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
new file mode 100644
index 0000000..5b1d018
--- /dev/null
+++ b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
@@ -0,0 +1,191 @@
+/*
+ * ARM Ltd. Versatile Express
+ *
+ * LogicTile Express 20MG
+ * V2F-1XV7
+ *
+ * Cortex-A53 (2 cores) Soft Macrocell Model
+ *
+ * HBI-0247C
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ model = "V2F-1XV7 Cortex-A53x2 SMM";
+ arm,hbi = <0x247>;
+ arm,vexpress,site = <0xf>;
+ compatible = "arm,vexpress,v2f-1xv7,ca53x2", "arm,vexpress,v2f-1xv7", "arm,vexpress";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ chosen {
+ stdout-path = "serial0:38400n8";
+ };
+
+ aliases {
+ serial0 = &v2m_serial0;
+ serial1 = &v2m_serial1;
+ serial2 = &v2m_serial2;
+ serial3 = &v2m_serial3;
+ i2c0 = &v2m_i2c_dvi;
+ i2c1 = &v2m_i2c_pcie;
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0>;
+ next-level-cache = <&L2_0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 1>;
+ next-level-cache = <&L2_0>;
+ };
+
+ L2_0: l2-cache0 {
+ compatible = "cache";
+ };
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0x80000000>; /* 2GB @ 2GB */
+ };
+
+ gic: interrupt-controller@2c001000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0 0x2c001000 0 0x1000>,
+ <0 0x2c002000 0 0x2000>,
+ <0 0x2c004000 0 0x2000>,
+ <0 0x2c006000 0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ dcc {
+ compatible = "arm,vexpress,config-bus";
+ arm,vexpress,config-bridge = <&v2m_sysreg>;
+
+ smbclk: osc@4 {
+ /* SMC clock */
+ compatible = "arm,vexpress-osc";
+ arm,vexpress-sysreg,func = <1 4>;
+ freq-range = <40000000 40000000>;
+ #clock-cells = <0>;
+ clock-output-names = "smclk";
+ };
+
+ volt@0 {
+ /* VIO to expansion board above */
+ compatible = "arm,vexpress-volt";
+ arm,vexpress-sysreg,func = <2 0>;
+ regulator-name = "VIO_UP";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ volt@1 {
+ /* 12V from power connector J6 */
+ compatible = "arm,vexpress-volt";
+ arm,vexpress-sysreg,func = <2 1>;
+ regulator-name = "12";
+ regulator-always-on;
+ };
+
+ temp@0 {
+ /* FPGA temperature */
+ compatible = "arm,vexpress-temp";
+ arm,vexpress-sysreg,func = <4 0>;
+ label = "FPGA";
+ };
+ };
+
+ smb {
+ compatible = "simple-bus";
+
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0 0x08000000 0x04000000>,
+ <1 0 0 0x14000000 0x04000000>,
+ <2 0 0 0x18000000 0x04000000>,
+ <3 0 0 0x1c000000 0x04000000>,
+ <4 0 0 0x0c000000 0x04000000>,
+ <5 0 0 0x10000000 0x04000000>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 63>;
+ interrupt-map = <0 0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 1 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 2 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 3 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 4 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 5 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 6 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 7 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 8 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 9 &gic GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 10 &gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 11 &gic GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 12 &gic GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 13 &gic GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 14 &gic GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 15 &gic GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 16 &gic GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 17 &gic GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 18 &gic GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 19 &gic GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 20 &gic GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 21 &gic GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 22 &gic GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 23 &gic GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 24 &gic GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 25 &gic GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 26 &gic GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 27 &gic GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 28 &gic GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 29 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 30 &gic GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 31 &gic GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 32 &gic GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 33 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 34 &gic GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 35 &gic GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 36 &gic GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 37 &gic GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 38 &gic GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 39 &gic GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 40 &gic GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 41 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 42 &gic GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+
+ /include/ "../../../../arm/boot/dts/vexpress-v2m-rs1.dtsi"
+ };
+};
diff --git a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
index d8c0bdc..9cb7cf9 100644
--- a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
+++ b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
@@ -376,10 +376,19 @@
gic0: interrupt-controller@8010,00000000 {
compatible = "arm,gic-v3";
#interrupt-cells = <3>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
interrupt-controller;
reg = <0x8010 0x00000000 0x0 0x010000>, /* GICD */
<0x8010 0x80000000 0x0 0x600000>; /* GICR */
interrupts = <1 9 0xf04>;
+
+ its: gic-its@8010,00020000 {
+ compatible = "arm,gic-v3-its";
+ msi-controller;
+ reg = <0x8010 0x20000 0x0 0x200000>;
+ };
};
uaa0: serial@87e0,24000000 {
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index f38c94f..4e17e7e 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -83,6 +83,7 @@
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
+CONFIG_AHCI_CEVA=y
CONFIG_AHCI_XGENE=y
CONFIG_PATA_PLATFORM=y
CONFIG_PATA_OF_PLATFORM=y
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index 39248d3..406485e 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -19,6 +19,14 @@
#include <asm/psci.h>
#include <asm/smp_plat.h>
+/* Macros for consistency checks of the GICC subtable of MADT */
+#define ACPI_MADT_GICC_LENGTH \
+ (acpi_gbl_FADT.header.revision < 6 ? 76 : 80)
+
+#define BAD_MADT_GICC_ENTRY(entry, end) \
+ (!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) || \
+ (entry)->header.length != ACPI_MADT_GICC_LENGTH)
+
/* Basic configuration for ACPI */
#ifdef CONFIG_ACPI
/* ACPI table mapping after acpi_gbl_permanent_mmap is set */
diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c
index 7ce589c..9047cab6 100644
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -15,7 +15,7 @@
#include <asm/cpuidle.h>
#include <asm/cpu_ops.h>
-int arm_cpuidle_init(unsigned int cpu)
+int __init arm_cpuidle_init(unsigned int cpu)
{
int ret = -EOPNOTSUPP;
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index a7691a3..f860bfd 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -352,8 +352,8 @@
// TODO: add support for undefined instructions in kernel mode
enable_dbg
mov x0, sp
+ mov x2, x1
mov x1, #BAD_SYNC
- mrs x2, esr_el1
b bad_mode
ENDPROC(el1_sync)
@@ -553,7 +553,7 @@
ct_user_exit
mov x0, sp
mov x1, #BAD_SYNC
- mrs x2, esr_el1
+ mov x2, x25
bl bad_mode
b ret_to_user
ENDPROC(el0_sync)
diff --git a/arch/arm64/kernel/entry32.S b/arch/arm64/kernel/entry32.S
index bd9bfaa..f332d5d 100644
--- a/arch/arm64/kernel/entry32.S
+++ b/arch/arm64/kernel/entry32.S
@@ -32,13 +32,11 @@
ENTRY(compat_sys_sigreturn_wrapper)
mov x0, sp
- mov x27, #0 // prevent syscall restart handling (why)
b compat_sys_sigreturn
ENDPROC(compat_sys_sigreturn_wrapper)
ENTRY(compat_sys_rt_sigreturn_wrapper)
mov x0, sp
- mov x27, #0 // prevent syscall restart handling (why)
b compat_sys_rt_sigreturn
ENDPROC(compat_sys_rt_sigreturn_wrapper)
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index e7d934d..7a1a5da 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -31,7 +31,6 @@
#include <asm/current.h>
#include <asm/debug-monitors.h>
#include <asm/hw_breakpoint.h>
-#include <asm/kdebug.h>
#include <asm/traps.h>
#include <asm/cputype.h>
#include <asm/system_misc.h>
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 702591f..b31e9a4 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1318,7 +1318,7 @@
/* Don't bother with PPIs; they're already affine */
irq = platform_get_irq(pdev, 0);
if (irq >= 0 && irq_is_percpu(irq))
- return 0;
+ goto out;
irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL);
if (!irqs)
@@ -1340,12 +1340,13 @@
if (arch_find_n_match_cpu_physical_id(dn, cpu, NULL))
break;
- of_node_put(dn);
if (cpu >= nr_cpu_ids) {
pr_warn("Failed to find logical CPU for %s\n",
dn->name);
+ of_node_put(dn);
break;
}
+ of_node_put(dn);
irqs[i] = cpu;
}
@@ -1355,6 +1356,7 @@
else
kfree(irqs);
+out:
cpu_pmu->plat_device = pdev;
return 0;
}
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 4b2121b..50fb469 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -396,13 +396,13 @@
{
u64 hwid = processor->arm_mpidr;
- if (hwid & ~MPIDR_HWID_BITMASK || hwid == INVALID_HWID) {
- pr_err("skipping CPU entry with invalid MPIDR 0x%llx\n", hwid);
+ if (!(processor->flags & ACPI_MADT_ENABLED)) {
+ pr_debug("skipping disabled CPU entry with 0x%llx MPIDR\n", hwid);
return;
}
- if (!(processor->flags & ACPI_MADT_ENABLED)) {
- pr_err("skipping disabled CPU entry with 0x%llx MPIDR\n", hwid);
+ if (hwid & ~MPIDR_HWID_BITMASK || hwid == INVALID_HWID) {
+ pr_err("skipping CPU entry with invalid MPIDR 0x%llx\n", hwid);
return;
}
@@ -438,7 +438,7 @@
struct acpi_madt_generic_interrupt *processor;
processor = (struct acpi_madt_generic_interrupt *)header;
- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
@@ -693,7 +693,7 @@
struct pt_regs *old_regs = set_irq_regs(regs);
if ((unsigned)ipinr < NR_IPI) {
- trace_ipi_entry(ipi_types[ipinr]);
+ trace_ipi_entry_rcuidle(ipi_types[ipinr]);
__inc_irq_stat(cpu, ipi_irqs[ipinr]);
}
@@ -736,7 +736,7 @@
}
if ((unsigned)ipinr < NR_IPI)
- trace_ipi_exit(ipi_types[ipinr]);
+ trace_ipi_exit_rcuidle(ipi_types[ipinr]);
set_irq_regs(old_regs);
}
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index a12251c..566bc4c 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -335,7 +335,7 @@
if (call_undef_hook(regs) == 0)
return;
- if (show_unhandled_signals_ratelimited() && unhandled_signal(current, SIGILL)) {
+ if (unhandled_signal(current, SIGILL) && show_unhandled_signals_ratelimited()) {
pr_info("%s[%d]: undefined instruction: pc=%p\n",
current->comm, task_pid_nr(current), pc);
dump_instr(KERN_INFO, regs);
diff --git a/arch/arm64/mm/Makefile b/arch/arm64/mm/Makefile
index 9d84feb..773d37a 100644
--- a/arch/arm64/mm/Makefile
+++ b/arch/arm64/mm/Makefile
@@ -4,5 +4,3 @@
context.o proc.o pageattr.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_ARM64_PTDUMP) += dump.o
-
-CFLAGS_mmu.o := -I$(srctree)/scripts/dtc/libfdt/
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b1fc69c..94d98cd 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -115,7 +115,7 @@
{
struct siginfo si;
- if (show_unhandled_signals_ratelimited() && unhandled_signal(tsk, sig)) {
+ if (unhandled_signal(tsk, sig) && show_unhandled_signals_ratelimited()) {
pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n",
tsk->comm, task_pid_nr(tsk), fault_name(esr), sig,
addr, esr);
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index cccc4af..831ec53 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -33,13 +33,13 @@
int pmd_huge(pmd_t pmd)
{
- return !(pmd_val(pmd) & PMD_TABLE_BIT);
+ return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
}
int pud_huge(pud_t pud)
{
#ifndef __PAGETABLE_PMD_FOLDED
- return !(pud_val(pud) & PUD_TABLE_BIT);
+ return pud_val(pud) && !(pud_val(pud) & PUD_TABLE_BIT);
#else
return 0;
#endif
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 82d3435..a4ede4e 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -117,7 +117,7 @@
int i = 0;
do {
- set_pmd(pmd, __pmd(addr | prot));
+ set_pmd(pmd, __pmd(addr | pgprot_val(prot)));
addr += PMD_SIZE;
} while (pmd++, i++, i < PTRS_PER_PMD);
}
diff --git a/arch/arm64/net/bpf_jit.h b/arch/arm64/net/bpf_jit.h
index de0a81a..98a26ce 100644
--- a/arch/arm64/net/bpf_jit.h
+++ b/arch/arm64/net/bpf_jit.h
@@ -110,6 +110,10 @@
/* Rd = Rn >> shift; signed */
#define A64_ASR(sf, Rd, Rn, shift) A64_SBFM(sf, Rd, Rn, shift, (sf) ? 63 : 31)
+/* Zero extend */
+#define A64_UXTH(sf, Rd, Rn) A64_UBFM(sf, Rd, Rn, 0, 15)
+#define A64_UXTW(sf, Rd, Rn) A64_UBFM(sf, Rd, Rn, 0, 31)
+
/* Move wide (immediate) */
#define A64_MOVEW(sf, Rd, imm16, shift, type) \
aarch64_insn_gen_movewide(Rd, imm16, shift, \
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index dc6a484..c047598 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -113,9 +113,9 @@
static inline int bpf2a64_offset(int bpf_to, int bpf_from,
const struct jit_ctx *ctx)
{
- int to = ctx->offset[bpf_to + 1];
+ int to = ctx->offset[bpf_to];
/* -1 to account for the Branch instruction */
- int from = ctx->offset[bpf_from + 1] - 1;
+ int from = ctx->offset[bpf_from] - 1;
return to - from;
}
@@ -289,23 +289,41 @@
case BPF_ALU | BPF_END | BPF_FROM_BE:
#ifdef CONFIG_CPU_BIG_ENDIAN
if (BPF_SRC(code) == BPF_FROM_BE)
- break;
+ goto emit_bswap_uxt;
#else /* !CONFIG_CPU_BIG_ENDIAN */
if (BPF_SRC(code) == BPF_FROM_LE)
- break;
+ goto emit_bswap_uxt;
#endif
switch (imm) {
case 16:
emit(A64_REV16(is64, dst, dst), ctx);
+ /* zero-extend 16 bits into 64 bits */
+ emit(A64_UXTH(is64, dst, dst), ctx);
break;
case 32:
emit(A64_REV32(is64, dst, dst), ctx);
+ /* upper 32 bits already cleared */
break;
case 64:
emit(A64_REV64(dst, dst), ctx);
break;
}
break;
+emit_bswap_uxt:
+ switch (imm) {
+ case 16:
+ /* zero-extend 16 bits into 64 bits */
+ emit(A64_UXTH(is64, dst, dst), ctx);
+ break;
+ case 32:
+ /* zero-extend 32 bits into 64 bits */
+ emit(A64_UXTW(is64, dst, dst), ctx);
+ break;
+ case 64:
+ /* nop */
+ break;
+ }
+ break;
/* dst = imm */
case BPF_ALU | BPF_MOV | BPF_K:
case BPF_ALU64 | BPF_MOV | BPF_K:
@@ -640,10 +658,11 @@
const struct bpf_insn *insn = &prog->insnsi[i];
int ret;
+ ret = build_insn(insn, ctx);
+
if (ctx->image == NULL)
ctx->offset[i] = ctx->idx;
- ret = build_insn(insn, ctx);
if (ret > 0) {
i++;
continue;
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index c36efa0..719dd79 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -136,7 +136,7 @@
struct file *file = vma->vm_file;
if (file) {
- char *d_name = d_path(&file->f_path, _tmpbuf,
+ char *d_name = file_path(file, _tmpbuf,
sizeof(_tmpbuf));
if (!IS_ERR(d_name))
name = d_name;
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index 4dda9bd..e989cee 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -1464,7 +1464,7 @@
if (port->write_ts_idx == NBR_IN_DESCR)
port->write_ts_idx = 0;
idx = port->write_ts_idx++;
- do_posix_clock_monotonic_gettime(&port->timestamp[idx]);
+ ktime_get_ts(&port->timestamp[idx]);
port->in_buffer_len += port->inbufchunk;
}
spin_unlock_irqrestore(&port->lock, flags);
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 7f30289..97e48b0 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -215,10 +215,6 @@
pmd_t *pmd;
pte_t *pte;
- if (!PageReserved(page))
- printk(KERN_ERR "put_kernel_page: page at 0x%p not in reserved memory\n",
- page_address(page));
-
pgd = pgd_offset_k(address); /* note: this is NOT pgd_offset()! */
{
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2a14585..aab7e46 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2231,7 +2231,7 @@
config MIPS_CPS
bool "MIPS Coherent Processing System support"
- depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
+ depends on SYS_SUPPORTS_MIPS_CPS
select MIPS_CM
select MIPS_CPC
select MIPS_CPS_PM if HOTPLUG_CPU
diff --git a/arch/mips/include/asm/mach-loongson64/mmzone.h b/arch/mips/include/asm/mach-loongson64/mmzone.h
index 37c08a2..c9f7e23 100644
--- a/arch/mips/include/asm/mach-loongson64/mmzone.h
+++ b/arch/mips/include/asm/mach-loongson64/mmzone.h
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
- * Insititute of Computing Technology
+ * Institute of Computing Technology
* Author: Xiang Gao, gaoxiang@ict.ac.cn
* Huacai Chen, chenhc@lemote.com
* Xiaofu Meng, Shuangshuang Zhang
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 2b25d1b..16f1ea9 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -23,6 +23,7 @@
extern int smp_num_siblings;
extern cpumask_t cpu_sibling_map[];
extern cpumask_t cpu_core_map[];
+extern cpumask_t cpu_foreign_map;
#define raw_smp_processor_id() (current_thread_info()->cpu)
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index c0c5e59..d8f9b35 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -600,7 +600,7 @@
break;
case blezl_op: /* not really i_format */
- if (NO_R6EMU)
+ if (!insn.i_format.rt && NO_R6EMU)
goto sigill_r6;
case blez_op:
/*
@@ -635,7 +635,7 @@
break;
case bgtzl_op:
- if (NO_R6EMU)
+ if (!insn.i_format.rt && NO_R6EMU)
goto sigill_r6;
case bgtz_op:
/*
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index 55b759a..1b6ca63 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -60,7 +60,7 @@
nop
/* This is an NMI */
- la k0, nmi_handler
+ PTR_LA k0, nmi_handler
jr k0
nop
@@ -107,10 +107,10 @@
mul t1, t1, t0
mul t1, t1, t2
- li a0, KSEG0
- add a1, a0, t1
+ li a0, CKSEG0
+ PTR_ADD a1, a0, t1
1: cache Index_Store_Tag_I, 0(a0)
- add a0, a0, t0
+ PTR_ADD a0, a0, t0
bne a0, a1, 1b
nop
icache_done:
@@ -134,12 +134,12 @@
mul t1, t1, t0
mul t1, t1, t2
- li a0, KSEG0
- addu a1, a0, t1
- subu a1, a1, t0
+ li a0, CKSEG0
+ PTR_ADDU a1, a0, t1
+ PTR_SUBU a1, a1, t0
1: cache Index_Store_Tag_D, 0(a0)
bne a0, a1, 1b
- add a0, a0, t0
+ PTR_ADD a0, a0, t0
dcache_done:
/* Set Kseg0 CCA to that in s0 */
@@ -152,11 +152,11 @@
/* Enter the coherent domain */
li t0, 0xff
- sw t0, GCR_CL_COHERENCE_OFS(v1)
+ PTR_S t0, GCR_CL_COHERENCE_OFS(v1)
ehb
/* Jump to kseg0 */
- la t0, 1f
+ PTR_LA t0, 1f
jr t0
nop
@@ -178,9 +178,9 @@
nop
/* Off we go! */
- lw t1, VPEBOOTCFG_PC(v0)
- lw gp, VPEBOOTCFG_GP(v0)
- lw sp, VPEBOOTCFG_SP(v0)
+ PTR_L t1, VPEBOOTCFG_PC(v0)
+ PTR_L gp, VPEBOOTCFG_GP(v0)
+ PTR_L sp, VPEBOOTCFG_SP(v0)
jr t1
nop
END(mips_cps_core_entry)
@@ -217,7 +217,7 @@
.org 0x480
LEAF(excep_ejtag)
- la k0, ejtag_debug_handler
+ PTR_LA k0, ejtag_debug_handler
jr k0
nop
END(excep_ejtag)
@@ -229,7 +229,7 @@
nop
.set push
- .set mips32r2
+ .set mips64r2
.set mt
/* Only allow 1 TC per VPE to execute... */
@@ -237,7 +237,7 @@
/* ...and for the moment only 1 VPE */
dvpe
- la t1, 1f
+ PTR_LA t1, 1f
jr.hb t1
nop
@@ -250,25 +250,25 @@
mfc0 t0, CP0_MVPCONF0
srl t0, t0, MVPCONF0_PVPE_SHIFT
andi t0, t0, (MVPCONF0_PVPE >> MVPCONF0_PVPE_SHIFT)
- addiu t7, t0, 1
+ addiu ta3, t0, 1
/* If there's only 1, we're done */
beqz t0, 2f
nop
/* Loop through each VPE within this core */
- li t5, 1
+ li ta1, 1
1: /* Operate on the appropriate TC */
- mtc0 t5, CP0_VPECONTROL
+ mtc0 ta1, CP0_VPECONTROL
ehb
/* Bind TC to VPE (1:1 TC:VPE mapping) */
- mttc0 t5, CP0_TCBIND
+ mttc0 ta1, CP0_TCBIND
/* Set exclusive TC, non-active, master */
li t0, VPECONF0_MVP
- sll t1, t5, VPECONF0_XTC_SHIFT
+ sll t1, ta1, VPECONF0_XTC_SHIFT
or t0, t0, t1
mttc0 t0, CP0_VPECONF0
@@ -280,8 +280,8 @@
mttc0 t0, CP0_TCHALT
/* Next VPE */
- addiu t5, t5, 1
- slt t0, t5, t7
+ addiu ta1, ta1, 1
+ slt t0, ta1, ta3
bnez t0, 1b
nop
@@ -298,19 +298,19 @@
LEAF(mips_cps_boot_vpes)
/* Retrieve CM base address */
- la t0, mips_cm_base
- lw t0, 0(t0)
+ PTR_LA t0, mips_cm_base
+ PTR_L t0, 0(t0)
/* Calculate a pointer to this cores struct core_boot_config */
- lw t0, GCR_CL_ID_OFS(t0)
+ PTR_L t0, GCR_CL_ID_OFS(t0)
li t1, COREBOOTCFG_SIZE
mul t0, t0, t1
- la t1, mips_cps_core_bootcfg
- lw t1, 0(t1)
- addu t0, t0, t1
+ PTR_LA t1, mips_cps_core_bootcfg
+ PTR_L t1, 0(t1)
+ PTR_ADDU t0, t0, t1
/* Calculate this VPEs ID. If the core doesn't support MT use 0 */
- has_mt t6, 1f
+ has_mt ta2, 1f
li t9, 0
/* Find the number of VPEs present in the core */
@@ -334,24 +334,24 @@
1: /* Calculate a pointer to this VPEs struct vpe_boot_config */
li t1, VPEBOOTCFG_SIZE
mul v0, t9, t1
- lw t7, COREBOOTCFG_VPECONFIG(t0)
- addu v0, v0, t7
+ PTR_L ta3, COREBOOTCFG_VPECONFIG(t0)
+ PTR_ADDU v0, v0, ta3
#ifdef CONFIG_MIPS_MT
/* If the core doesn't support MT then return */
- bnez t6, 1f
+ bnez ta2, 1f
nop
jr ra
nop
.set push
- .set mips32r2
+ .set mips64r2
.set mt
1: /* Enter VPE configuration state */
dvpe
- la t1, 1f
+ PTR_LA t1, 1f
jr.hb t1
nop
1: mfc0 t1, CP0_MVPCONTROL
@@ -360,12 +360,12 @@
ehb
/* Loop through each VPE */
- lw t6, COREBOOTCFG_VPEMASK(t0)
- move t8, t6
- li t5, 0
+ PTR_L ta2, COREBOOTCFG_VPEMASK(t0)
+ move t8, ta2
+ li ta1, 0
/* Check whether the VPE should be running. If not, skip it */
-1: andi t0, t6, 1
+1: andi t0, ta2, 1
beqz t0, 2f
nop
@@ -373,7 +373,7 @@
mfc0 t0, CP0_VPECONTROL
ori t0, t0, VPECONTROL_TARGTC
xori t0, t0, VPECONTROL_TARGTC
- or t0, t0, t5
+ or t0, t0, ta1
mtc0 t0, CP0_VPECONTROL
ehb
@@ -384,8 +384,8 @@
/* Calculate a pointer to the VPEs struct vpe_boot_config */
li t0, VPEBOOTCFG_SIZE
- mul t0, t0, t5
- addu t0, t0, t7
+ mul t0, t0, ta1
+ addu t0, t0, ta3
/* Set the TC restart PC */
lw t1, VPEBOOTCFG_PC(t0)
@@ -423,9 +423,9 @@
mttc0 t0, CP0_VPECONF0
/* Next VPE */
-2: srl t6, t6, 1
- addiu t5, t5, 1
- bnez t6, 1b
+2: srl ta2, ta2, 1
+ addiu ta1, ta1, 1
+ bnez ta2, 1b
nop
/* Leave VPE configuration state */
@@ -445,7 +445,7 @@
/* This VPE should be offline, halt the TC */
li t0, TCHALT_H
mtc0 t0, CP0_TCHALT
- la t0, 1f
+ PTR_LA t0, 1f
1: jr.hb t0
nop
@@ -466,10 +466,10 @@
.set noat
lw $1, TI_CPU(gp)
sll $1, $1, LONGLOG
- la \dest, __per_cpu_offset
+ PTR_LA \dest, __per_cpu_offset
addu $1, $1, \dest
lw $1, 0($1)
- la \dest, cps_cpu_state
+ PTR_LA \dest, cps_cpu_state
addu \dest, \dest, $1
.set pop
.endm
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 6e8de80..4cc1350 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -73,10 +73,11 @@
.set noreorder
.set nomacro
-1: user_lw(t5, 16(t0)) # argument #5 from usp
-4: user_lw(t6, 20(t0)) # argument #6 from usp
-3: user_lw(t7, 24(t0)) # argument #7 from usp
-2: user_lw(t8, 28(t0)) # argument #8 from usp
+load_a4: user_lw(t5, 16(t0)) # argument #5 from usp
+load_a5: user_lw(t6, 20(t0)) # argument #6 from usp
+load_a6: user_lw(t7, 24(t0)) # argument #7 from usp
+load_a7: user_lw(t8, 28(t0)) # argument #8 from usp
+loads_done:
sw t5, 16(sp) # argument #5 to ksp
sw t6, 20(sp) # argument #6 to ksp
@@ -85,10 +86,10 @@
.set pop
.section __ex_table,"a"
- PTR 1b,bad_stack
- PTR 2b,bad_stack
- PTR 3b,bad_stack
- PTR 4b,bad_stack
+ PTR load_a4, bad_stack_a4
+ PTR load_a5, bad_stack_a5
+ PTR load_a6, bad_stack_a6
+ PTR load_a7, bad_stack_a7
.previous
lw t0, TI_FLAGS($28) # syscall tracing enabled?
@@ -153,8 +154,8 @@
/* ------------------------------------------------------------------------ */
/*
- * The stackpointer for a call with more than 4 arguments is bad.
- * We probably should handle this case a bit more drastic.
+ * Our open-coded access area sanity test for the stack pointer
+ * failed. We probably should handle this case a bit more drastic.
*/
bad_stack:
li v0, EFAULT
@@ -163,6 +164,22 @@
sw t0, PT_R7(sp)
j o32_syscall_exit
+bad_stack_a4:
+ li t5, 0
+ b load_a5
+
+bad_stack_a5:
+ li t6, 0
+ b load_a6
+
+bad_stack_a6:
+ li t7, 0
+ b load_a7
+
+bad_stack_a7:
+ li t8, 0
+ b loads_done
+
/*
* The system call does not exist in this kernel
*/
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index d07b210..f543ff4 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -69,16 +69,17 @@
daddu t1, t0, 32
bltz t1, bad_stack
-1: lw a4, 16(t0) # argument #5 from usp
-2: lw a5, 20(t0) # argument #6 from usp
-3: lw a6, 24(t0) # argument #7 from usp
-4: lw a7, 28(t0) # argument #8 from usp (for indirect syscalls)
+load_a4: lw a4, 16(t0) # argument #5 from usp
+load_a5: lw a5, 20(t0) # argument #6 from usp
+load_a6: lw a6, 24(t0) # argument #7 from usp
+load_a7: lw a7, 28(t0) # argument #8 from usp
+loads_done:
.section __ex_table,"a"
- PTR 1b, bad_stack
- PTR 2b, bad_stack
- PTR 3b, bad_stack
- PTR 4b, bad_stack
+ PTR load_a4, bad_stack_a4
+ PTR load_a5, bad_stack_a5
+ PTR load_a6, bad_stack_a6
+ PTR load_a7, bad_stack_a7
.previous
li t1, _TIF_WORK_SYSCALL_ENTRY
@@ -167,6 +168,22 @@
sd t0, PT_R7(sp)
j o32_syscall_exit
+bad_stack_a4:
+ li a4, 0
+ b load_a5
+
+bad_stack_a5:
+ li a5, 0
+ b load_a6
+
+bad_stack_a6:
+ li a6, 0
+ b load_a7
+
+bad_stack_a7:
+ li a7, 0
+ b loads_done
+
not_o32_scall:
/*
* This is not an o32 compatibility syscall, pass it on
@@ -383,7 +400,7 @@
PTR sys_connect /* 4170 */
PTR sys_getpeername
PTR sys_getsockname
- PTR sys_getsockopt
+ PTR compat_sys_getsockopt
PTR sys_listen
PTR compat_sys_recv /* 4175 */
PTR compat_sys_recvfrom
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index be73c49..008b337 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -337,6 +337,11 @@
min_low_pfn = start;
if (end <= reserved_end)
continue;
+#ifdef CONFIG_BLK_DEV_INITRD
+ /* mapstart should be after initrd_end */
+ if (initrd_end && end <= (unsigned long)PFN_UP(__pa(initrd_end)))
+ continue;
+#endif
if (start >= mapstart)
continue;
mapstart = max(reserved_end, start);
@@ -366,14 +371,6 @@
max_low_pfn = PFN_DOWN(HIGHMEM_START);
}
-#ifdef CONFIG_BLK_DEV_INITRD
- /*
- * mapstart should be after initrd_end
- */
- if (initrd_end)
- mapstart = max(mapstart, (unsigned long)PFN_UP(__pa(initrd_end)));
-#endif
-
/*
* Initialize the boot-time allocator with low memory only.
*/
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 4251d39..c889377 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -133,7 +133,7 @@
/*
* Patch the start of mips_cps_core_entry to provide:
*
- * v0 = CM base address
+ * v1 = CM base address
* s0 = kseg0 CCA
*/
entry_code = (u32 *)&mips_cps_core_entry;
@@ -369,7 +369,7 @@
static void wait_for_sibling_halt(void *ptr_cpu)
{
- unsigned cpu = (unsigned)ptr_cpu;
+ unsigned cpu = (unsigned long)ptr_cpu;
unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]);
unsigned halted;
unsigned long flags;
@@ -430,7 +430,7 @@
*/
err = smp_call_function_single(cpu_death_sibling,
wait_for_sibling_halt,
- (void *)cpu, 1);
+ (void *)(unsigned long)cpu, 1);
if (err)
panic("Failed to call remote sibling CPU\n");
}
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index faa46eb..d0744cc 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -63,6 +63,13 @@
cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_core_map);
+/*
+ * A logcal cpu mask containing only one VPE per core to
+ * reduce the number of IPIs on large MT systems.
+ */
+cpumask_t cpu_foreign_map __read_mostly;
+EXPORT_SYMBOL(cpu_foreign_map);
+
/* representing cpus for which sibling maps can be computed */
static cpumask_t cpu_sibling_setup_map;
@@ -103,6 +110,29 @@
}
}
+/*
+ * Calculate a new cpu_foreign_map mask whenever a
+ * new cpu appears or disappears.
+ */
+static inline void calculate_cpu_foreign_map(void)
+{
+ int i, k, core_present;
+ cpumask_t temp_foreign_map;
+
+ /* Re-calculate the mask */
+ for_each_online_cpu(i) {
+ core_present = 0;
+ for_each_cpu(k, &temp_foreign_map)
+ if (cpu_data[i].package == cpu_data[k].package &&
+ cpu_data[i].core == cpu_data[k].core)
+ core_present = 1;
+ if (!core_present)
+ cpumask_set_cpu(i, &temp_foreign_map);
+ }
+
+ cpumask_copy(&cpu_foreign_map, &temp_foreign_map);
+}
+
struct plat_smp_ops *mp_ops;
EXPORT_SYMBOL(mp_ops);
@@ -146,6 +176,8 @@
set_cpu_sibling_map(cpu);
set_cpu_core_map(cpu);
+ calculate_cpu_foreign_map();
+
cpumask_set_cpu(cpu, &cpu_callin_map);
synchronise_count_slave(cpu);
@@ -173,9 +205,18 @@
static void stop_this_cpu(void *dummy)
{
/*
- * Remove this CPU:
+ * Remove this CPU. Be a bit slow here and
+ * set the bits for every online CPU so we don't miss
+ * any IPI whilst taking this VPE down.
*/
+
+ cpumask_copy(&cpu_foreign_map, cpu_online_mask);
+
+ /* Make it visible to every other CPU */
+ smp_mb();
+
set_cpu_online(smp_processor_id(), false);
+ calculate_cpu_foreign_map();
local_irq_disable();
while (1);
}
@@ -197,6 +238,7 @@
mp_ops->prepare_cpus(max_cpus);
set_cpu_sibling_map(0);
set_cpu_core_map(0);
+ calculate_cpu_foreign_map();
#ifndef CONFIG_HOTPLUG_CPU
init_cpu_present(cpu_possible_mask);
#endif
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 2a7b38e..e207a43 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2130,10 +2130,10 @@
BUG_ON(current->mm);
enter_lazy_tlb(&init_mm, current);
- /* Boot CPU's cache setup in setup_arch(). */
- if (!is_boot_cpu)
- cpu_cache_init();
- tlb_init();
+ /* Boot CPU's cache setup in setup_arch(). */
+ if (!is_boot_cpu)
+ cpu_cache_init();
+ tlb_init();
TLBMISS_HANDLER_SETUP();
}
diff --git a/arch/mips/loongson64/common/bonito-irq.c b/arch/mips/loongson64/common/bonito-irq.c
index cc0e4fd..4e116d2 100644
--- a/arch/mips/loongson64/common/bonito-irq.c
+++ b/arch/mips/loongson64/common/bonito-irq.c
@@ -3,7 +3,7 @@
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it
diff --git a/arch/mips/loongson64/common/cmdline.c b/arch/mips/loongson64/common/cmdline.c
index 72fed00..01fbed1 100644
--- a/arch/mips/loongson64/common/cmdline.c
+++ b/arch/mips/loongson64/common/cmdline.c
@@ -6,7 +6,7 @@
* Copyright 2003 ICT CAS
* Author: Michael Guo <guoyi@ict.ac.cn>
*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* Copyright (C) 2009 Lemote Inc.
diff --git a/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
index 12c75db..8750370 100644
--- a/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
+++ b/arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
@@ -1,7 +1,7 @@
/*
* CS5536 General timer functions
*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* Copyright (C) 2009 Lemote Inc.
diff --git a/arch/mips/loongson64/common/env.c b/arch/mips/loongson64/common/env.c
index 22f04ca..f6c44dd 100644
--- a/arch/mips/loongson64/common/env.c
+++ b/arch/mips/loongson64/common/env.c
@@ -6,7 +6,7 @@
* Copyright 2003 ICT CAS
* Author: Michael Guo <guoyi@ict.ac.cn>
*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* Copyright (C) 2009 Lemote Inc.
diff --git a/arch/mips/loongson64/common/irq.c b/arch/mips/loongson64/common/irq.c
index 687003b..d36d969 100644
--- a/arch/mips/loongson64/common/irq.c
+++ b/arch/mips/loongson64/common/irq.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it
diff --git a/arch/mips/loongson64/common/setup.c b/arch/mips/loongson64/common/setup.c
index d477dd6..2dc5122 100644
--- a/arch/mips/loongson64/common/setup.c
+++ b/arch/mips/loongson64/common/setup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it
diff --git a/arch/mips/loongson64/fuloong-2e/irq.c b/arch/mips/loongson64/fuloong-2e/irq.c
index ef5ec8f..892963f8 100644
--- a/arch/mips/loongson64/fuloong-2e/irq.c
+++ b/arch/mips/loongson64/fuloong-2e/irq.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it
diff --git a/arch/mips/loongson64/lemote-2f/clock.c b/arch/mips/loongson64/lemote-2f/clock.c
index 462e34d..a78fb65 100644
--- a/arch/mips/loongson64/lemote-2f/clock.c
+++ b/arch/mips/loongson64/lemote-2f/clock.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2006 - 2008 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -15,7 +15,7 @@
#include <linux/spinlock.h>
#include <asm/clock.h>
-#include <asm/mach-loongson/loongson.h>
+#include <asm/mach-loongson64/loongson.h>
static LIST_HEAD(clock_list);
static DEFINE_SPINLOCK(clock_lock);
diff --git a/arch/mips/loongson64/loongson-3/numa.c b/arch/mips/loongson64/loongson-3/numa.c
index 12d14ed..6f9e010 100644
--- a/arch/mips/loongson64/loongson-3/numa.c
+++ b/arch/mips/loongson64/loongson-3/numa.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
- * Insititute of Computing Technology
+ * Institute of Computing Technology
* Author: Xiang Gao, gaoxiang@ict.ac.cn
* Huacai Chen, chenhc@lemote.com
* Xiaofu Meng, Shuangshuang Zhang
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 22b9b2c..712f17a 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -451,7 +451,7 @@
/* Fall through */
case jr_op:
/* For R6, JR already emulated in jalr_op */
- if (NO_R6EMU && insn.r_format.opcode == jr_op)
+ if (NO_R6EMU && insn.r_format.func == jr_op)
break;
*contpc = regs->regs[insn.r_format.rs];
return 1;
@@ -551,7 +551,7 @@
dec_insn.next_pc_inc;
return 1;
case blezl_op:
- if (NO_R6EMU)
+ if (!insn.i_format.rt && NO_R6EMU)
break;
case blez_op:
@@ -588,7 +588,7 @@
dec_insn.next_pc_inc;
return 1;
case bgtzl_op:
- if (NO_R6EMU)
+ if (!insn.i_format.rt && NO_R6EMU)
break;
case bgtz_op:
/*
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 7f660dc..fbea443 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -37,6 +37,7 @@
#include <asm/cacheflush.h> /* for run_uncached() */
#include <asm/traps.h>
#include <asm/dma-coherence.h>
+#include <asm/mips-cm.h>
/*
* Special Variant of smp_call_function for use by cache functions:
@@ -51,9 +52,16 @@
{
preempt_disable();
-#ifndef CONFIG_MIPS_MT_SMP
- smp_call_function(func, info, 1);
-#endif
+ /*
+ * The Coherent Manager propagates address-based cache ops to other
+ * cores but not index-based ops. However, r4k_on_each_cpu is used
+ * in both cases so there is no easy way to tell what kind of op is
+ * executed to the other cores. The best we can probably do is
+ * to restrict that call when a CM is not present because both
+ * CM-based SMP protocols (CMP & CPS) restrict index-based cache ops.
+ */
+ if (!mips_cm_present())
+ smp_call_function_many(&cpu_foreign_map, func, info, 1);
func(info);
preempt_enable();
}
@@ -937,7 +945,9 @@
}
static char *way_string[] = { NULL, "direct mapped", "2-way",
- "3-way", "4-way", "5-way", "6-way", "7-way", "8-way"
+ "3-way", "4-way", "5-way", "6-way", "7-way", "8-way",
+ "9-way", "10-way", "11-way", "12-way",
+ "13-way", "14-way", "15-way", "16-way",
};
static void probe_pcache(void)
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index 185e682..5625b19 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -119,18 +119,24 @@
int get_c0_fdc_int(void)
{
- int mips_cpu_fdc_irq;
+ /*
+ * Some cores claim the FDC is routable through the GIC, but it doesn't
+ * actually seem to be connected for those Malta bitstreams.
+ */
+ switch (current_cpu_type()) {
+ case CPU_INTERAPTIV:
+ case CPU_PROAPTIV:
+ return -1;
+ };
if (cpu_has_veic)
- mips_cpu_fdc_irq = -1;
+ return -1;
else if (gic_present)
- mips_cpu_fdc_irq = gic_get_c0_fdc_int();
+ return gic_get_c0_fdc_int();
else if (cp0_fdc_irq >= 0)
- mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
+ return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
else
- mips_cpu_fdc_irq = -1;
-
- return mips_cpu_fdc_irq;
+ return -1;
}
int get_c0_perfcount_int(void)
diff --git a/arch/mips/pistachio/init.c b/arch/mips/pistachio/init.c
index d2dc836..8bd8ebb 100644
--- a/arch/mips/pistachio/init.c
+++ b/arch/mips/pistachio/init.c
@@ -63,13 +63,19 @@
plat_setup_iocoherency();
}
-#define DEFAULT_CPC_BASE_ADDR 0x1bde0000
+#define DEFAULT_CPC_BASE_ADDR 0x1bde0000
+#define DEFAULT_CDMM_BASE_ADDR 0x1bdd0000
phys_addr_t mips_cpc_default_phys_base(void)
{
return DEFAULT_CPC_BASE_ADDR;
}
+phys_addr_t mips_cdmm_phys_base(void)
+{
+ return DEFAULT_CDMM_BASE_ADDR;
+}
+
static void __init mips_nmi_setup(void)
{
void *base;
diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c
index 67889fc..7c73fcb 100644
--- a/arch/mips/pistachio/time.c
+++ b/arch/mips/pistachio/time.c
@@ -27,6 +27,11 @@
return gic_get_c0_perfcount_int();
}
+int get_c0_fdc_int(void)
+{
+ return gic_get_c0_fdc_int();
+}
+
void __init plat_time_init(void)
{
struct device_node *np;
diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c
index be186a7..9e3cc8a 100644
--- a/arch/nios2/kernel/time.c
+++ b/arch/nios2/kernel/time.c
@@ -19,7 +19,9 @@
#include <linux/io.h>
#include <linux/slab.h>
-#define ALTERA_TIMER_STATUS_REG 0
+#define ALTR_TIMER_COMPATIBLE "altr,timer-1.0"
+
+#define ALTERA_TIMER_STATUS_REG 0
#define ALTERA_TIMER_CONTROL_REG 4
#define ALTERA_TIMER_PERIODL_REG 8
#define ALTERA_TIMER_PERIODH_REG 12
@@ -304,7 +306,16 @@
void __init time_init(void)
{
+ struct device_node *np;
+ int count = 0;
+
+ for_each_compatible_node(np, NULL, ALTR_TIMER_COMPATIBLE)
+ count++;
+
+ if (count < 2)
+ panic("%d timer is found, it needs 2 timers in system\n", count);
+
clocksource_of_init();
}
-CLOCKSOURCE_OF_DECLARE(nios2_timer, "altr,timer-1.0", nios2_time_init);
+CLOCKSOURCE_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init);
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 0a18375..f93c4a4 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -16,7 +16,7 @@
#include <asm/processor.h>
#include <asm/cache.h>
-extern spinlock_t pa_dbit_lock;
+extern spinlock_t pa_tlb_lock;
/*
* kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -33,6 +33,19 @@
*/
#define kern_addr_valid(addr) (1)
+/* Purge data and instruction TLB entries. Must be called holding
+ * the pa_tlb_lock. The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+
+static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+ mtsp(mm->context, 1);
+ pdtlb(addr);
+ if (unlikely(split_tlb))
+ pitlb(addr);
+}
+
/* Certain architectures need to do special things when PTEs
* within a page table are directly modified. Thus, the following
* hook is made available.
@@ -42,15 +55,20 @@
*(pteptr) = (pteval); \
} while(0)
-extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+#define pte_inserted(x) \
+ ((pte_val(x) & (_PAGE_PRESENT|_PAGE_ACCESSED)) \
+ == (_PAGE_PRESENT|_PAGE_ACCESSED))
-#define set_pte_at(mm, addr, ptep, pteval) \
- do { \
+#define set_pte_at(mm, addr, ptep, pteval) \
+ do { \
+ pte_t old_pte; \
unsigned long flags; \
- spin_lock_irqsave(&pa_dbit_lock, flags); \
- set_pte(ptep, pteval); \
- purge_tlb_entries(mm, addr); \
- spin_unlock_irqrestore(&pa_dbit_lock, flags); \
+ spin_lock_irqsave(&pa_tlb_lock, flags); \
+ old_pte = *ptep; \
+ set_pte(ptep, pteval); \
+ if (pte_inserted(old_pte)) \
+ purge_tlb_entries(mm, addr); \
+ spin_unlock_irqrestore(&pa_tlb_lock, flags); \
} while (0)
#endif /* !__ASSEMBLY__ */
@@ -268,7 +286,7 @@
#define pte_none(x) (pte_val(x) == 0)
#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0))
#define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK)
#define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -435,15 +453,15 @@
if (!pte_young(*ptep))
return 0;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
pte = *ptep;
if (!pte_young(pte)) {
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return 0;
}
set_pte(ptep, pte_mkold(pte));
purge_tlb_entries(vma->vm_mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return 1;
}
@@ -453,11 +471,12 @@
pte_t old_pte;
unsigned long flags;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
old_pte = *ptep;
- pte_clear(mm,addr,ptep);
- purge_tlb_entries(mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ set_pte(ptep, __pte(0));
+ if (pte_inserted(old_pte))
+ purge_tlb_entries(mm, addr);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return old_pte;
}
@@ -465,10 +484,10 @@
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
unsigned long flags;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
set_pte(ptep, pte_wrprotect(*ptep));
purge_tlb_entries(mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
}
#define pte_same(A,B) (pte_val(A) == pte_val(B))
diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 9d086a5..e84b964 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -13,6 +13,9 @@
* active at any one time on the Merced bus. This tlb purge
* synchronisation is fairly lightweight and harmless so we activate
* it on all systems not just the N class.
+
+ * It is also used to ensure PTE updates are atomic and consistent
+ * with the TLB.
*/
extern spinlock_t pa_tlb_lock;
@@ -24,20 +27,24 @@
#define smp_flush_tlb_all() flush_tlb_all()
+int __flush_tlb_range(unsigned long sid,
+ unsigned long start, unsigned long end);
+
+#define flush_tlb_range(vma, start, end) \
+ __flush_tlb_range((vma)->vm_mm->context, start, end)
+
+#define flush_tlb_kernel_range(start, end) \
+ __flush_tlb_range(0, start, end)
+
/*
* flush_tlb_mm()
*
- * XXX This code is NOT valid for HP-UX compatibility processes,
- * (although it will probably work 99% of the time). HP-UX
- * processes are free to play with the space id's and save them
- * over long periods of time, etc. so we have to preserve the
- * space and just flush the entire tlb. We need to check the
- * personality in order to do that, but the personality is not
- * currently being set correctly.
- *
- * Of course, Linux processes could do the same thing, but
- * we don't support that (and the compilers, dynamic linker,
- * etc. do not do that).
+ * The code to switch to a new context is NOT valid for processes
+ * which play with the space id's. Thus, we have to preserve the
+ * space and just flush the entire tlb. However, the compilers,
+ * dynamic linker, etc, do not manipulate space id's, so there
+ * could be a significant performance benefit in switching contexts
+ * and not flushing the whole tlb.
*/
static inline void flush_tlb_mm(struct mm_struct *mm)
@@ -45,10 +52,18 @@
BUG_ON(mm == &init_mm); /* Should never happen */
#if 1 || defined(CONFIG_SMP)
+ /* Except for very small threads, flushing the whole TLB is
+ * faster than using __flush_tlb_range. The pdtlb and pitlb
+ * instructions are very slow because of the TLB broadcast.
+ * It might be faster to do local range flushes on all CPUs
+ * on PA 2.0 systems.
+ */
flush_tlb_all();
#else
/* FIXME: currently broken, causing space id and protection ids
- * to go out of sync, resulting in faults on userspace accesses.
+ * to go out of sync, resulting in faults on userspace accesses.
+ * This approach needs further investigation since running many
+ * small applications (e.g., GCC testsuite) is faster on HP-UX.
*/
if (mm) {
if (mm->context != 0)
@@ -65,22 +80,12 @@
{
unsigned long flags, sid;
- /* For one page, it's not worth testing the split_tlb variable */
-
- mb();
sid = vma->vm_mm->context;
purge_tlb_start(flags);
mtsp(sid, 1);
pdtlb(addr);
- pitlb(addr);
+ if (unlikely(split_tlb))
+ pitlb(addr);
purge_tlb_end(flags);
}
-
-void __flush_tlb_range(unsigned long sid,
- unsigned long start, unsigned long end);
-
-#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
-
-#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
-
#endif
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index f6448c7..cda6dbb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -342,12 +342,15 @@
EXPORT_SYMBOL(flush_kernel_icache_range_asm);
#define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+
+#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
+static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
void __init parisc_setup_cache_timing(void)
{
unsigned long rangetime, alltime;
- unsigned long size;
+ unsigned long size, start;
alltime = mfctl(16);
flush_data_cache();
@@ -364,14 +367,43 @@
/* Racy, but if we see an intermediate value, it's ok too... */
parisc_cache_flush_threshold = size * alltime / rangetime;
- parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
+ parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
if (!parisc_cache_flush_threshold)
parisc_cache_flush_threshold = FLUSH_THRESHOLD;
if (parisc_cache_flush_threshold > cache_info.dc_size)
parisc_cache_flush_threshold = cache_info.dc_size;
- printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
+ printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+ parisc_cache_flush_threshold/1024);
+
+ /* calculate TLB flush threshold */
+
+ alltime = mfctl(16);
+ flush_tlb_all();
+ alltime = mfctl(16) - alltime;
+
+ size = PAGE_SIZE;
+ start = (unsigned long) _text;
+ rangetime = mfctl(16);
+ while (start < (unsigned long) _end) {
+ flush_tlb_kernel_range(start, start + PAGE_SIZE);
+ start += PAGE_SIZE;
+ size += PAGE_SIZE;
+ }
+ rangetime = mfctl(16) - rangetime;
+
+ printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
+ alltime, size, rangetime);
+
+ parisc_tlb_flush_threshold = size * alltime / rangetime;
+ parisc_tlb_flush_threshold *= num_online_cpus();
+ parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
+ if (!parisc_tlb_flush_threshold)
+ parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
+
+ printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+ parisc_tlb_flush_threshold/1024);
}
extern void purge_kernel_dcache_page_asm(unsigned long);
@@ -403,48 +435,45 @@
}
EXPORT_SYMBOL(copy_user_page);
-void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+/* __flush_tlb_range()
+ *
+ * returns 1 if all TLBs were flushed.
+ */
+int __flush_tlb_range(unsigned long sid, unsigned long start,
+ unsigned long end)
{
- unsigned long flags;
+ unsigned long flags, size;
- /* Note: purge_tlb_entries can be called at startup with
- no context. */
-
- purge_tlb_start(flags);
- mtsp(mm->context, 1);
- pdtlb(addr);
- pitlb(addr);
- purge_tlb_end(flags);
-}
-EXPORT_SYMBOL(purge_tlb_entries);
-
-void __flush_tlb_range(unsigned long sid, unsigned long start,
- unsigned long end)
-{
- unsigned long npages;
-
- npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
- if (npages >= 512) /* 2MB of space: arbitrary, should be tuned */
+ size = (end - start);
+ if (size >= parisc_tlb_flush_threshold) {
flush_tlb_all();
- else {
- unsigned long flags;
+ return 1;
+ }
+ /* Purge TLB entries for small ranges using the pdtlb and
+ pitlb instructions. These instructions execute locally
+ but cause a purge request to be broadcast to other TLBs. */
+ if (likely(!split_tlb)) {
+ while (start < end) {
+ purge_tlb_start(flags);
+ mtsp(sid, 1);
+ pdtlb(start);
+ purge_tlb_end(flags);
+ start += PAGE_SIZE;
+ }
+ return 0;
+ }
+
+ /* split TLB case */
+ while (start < end) {
purge_tlb_start(flags);
mtsp(sid, 1);
- if (split_tlb) {
- while (npages--) {
- pdtlb(start);
- pitlb(start);
- start += PAGE_SIZE;
- }
- } else {
- while (npages--) {
- pdtlb(start);
- start += PAGE_SIZE;
- }
- }
+ pdtlb(start);
+ pitlb(start);
purge_tlb_end(flags);
+ start += PAGE_SIZE;
}
+ return 0;
}
static void cacheflush_h_tmp_function(void *dummy)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 7581961..c5ef408 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
.level 2.0
#endif
- .import pa_dbit_lock,data
+ .import pa_tlb_lock,data
/* space_to_prot macro creates a prot id from a space id */
@@ -420,8 +420,8 @@
SHLREG %r9,PxD_VALUE_SHIFT,\pmd
extru \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */
- shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd
- LDREG %r0(\pmd),\pte /* pmd is now pte */
+ shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is now pte */
+ LDREG %r0(\pmd),\pte
bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault
.endm
@@ -453,57 +453,53 @@
L2_ptep \pgd,\pte,\index,\va,\fault
.endm
- /* Acquire pa_dbit_lock lock. */
- .macro dbit_lock spc,tmp,tmp1
+ /* Acquire pa_tlb_lock lock and recheck page is still present. */
+ .macro tlb_lock spc,ptp,pte,tmp,tmp1,fault
#ifdef CONFIG_SMP
cmpib,COND(=),n 0,\spc,2f
- load32 PA(pa_dbit_lock),\tmp
+ load32 PA(pa_tlb_lock),\tmp
1: LDCW 0(\tmp),\tmp1
cmpib,COND(=) 0,\tmp1,1b
nop
+ LDREG 0(\ptp),\pte
+ bb,<,n \pte,_PAGE_PRESENT_BIT,2f
+ b \fault
+ stw \spc,0(\tmp)
2:
#endif
.endm
- /* Release pa_dbit_lock lock without reloading lock address. */
- .macro dbit_unlock0 spc,tmp
+ /* Release pa_tlb_lock lock without reloading lock address. */
+ .macro tlb_unlock0 spc,tmp
#ifdef CONFIG_SMP
or,COND(=) %r0,\spc,%r0
stw \spc,0(\tmp)
#endif
.endm
- /* Release pa_dbit_lock lock. */
- .macro dbit_unlock1 spc,tmp
+ /* Release pa_tlb_lock lock. */
+ .macro tlb_unlock1 spc,tmp
#ifdef CONFIG_SMP
- load32 PA(pa_dbit_lock),\tmp
- dbit_unlock0 \spc,\tmp
+ load32 PA(pa_tlb_lock),\tmp
+ tlb_unlock0 \spc,\tmp
#endif
.endm
/* Set the _PAGE_ACCESSED bit of the PTE. Be clever and
* don't needlessly dirty the cache line if it was already set */
- .macro update_ptep spc,ptep,pte,tmp,tmp1
-#ifdef CONFIG_SMP
- or,COND(=) %r0,\spc,%r0
- LDREG 0(\ptep),\pte
-#endif
+ .macro update_accessed ptp,pte,tmp,tmp1
ldi _PAGE_ACCESSED,\tmp1
or \tmp1,\pte,\tmp
and,COND(<>) \tmp1,\pte,%r0
- STREG \tmp,0(\ptep)
+ STREG \tmp,0(\ptp)
.endm
/* Set the dirty bit (and accessed bit). No need to be
* clever, this is only used from the dirty fault */
- .macro update_dirty spc,ptep,pte,tmp
-#ifdef CONFIG_SMP
- or,COND(=) %r0,\spc,%r0
- LDREG 0(\ptep),\pte
-#endif
+ .macro update_dirty ptp,pte,tmp
ldi _PAGE_ACCESSED|_PAGE_DIRTY,\tmp
or \tmp,\pte,\pte
- STREG \pte,0(\ptep)
+ STREG \pte,0(\ptp)
.endm
/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
@@ -1148,14 +1144,14 @@
L3_ptep ptp,pte,t0,va,dtlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1174,14 +1170,14 @@
L3_ptep ptp,pte,t0,va,nadtlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1202,20 +1198,20 @@
L2_ptep ptp,pte,t0,va,dtlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
idtlba pte,(%sr1,va)
idtlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1235,21 +1231,20 @@
L2_ptep ptp,pte,t0,va,nadtlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
-
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
idtlba pte,(%sr1,va)
idtlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1269,16 +1264,16 @@
L2_ptep ptp,pte,t0,va,dtlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1297,16 +1292,16 @@
L2_ptep ptp,pte,t0,va,nadtlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
- idtlbt pte,prot
- dbit_unlock1 spc,t0
+ idtlbt pte,prot
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1406,14 +1401,14 @@
L3_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1430,14 +1425,14 @@
L3_ptep ptp,pte,t0,va,naitlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1458,20 +1453,20 @@
L2_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
iitlba pte,(%sr1,va)
iitlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1482,20 +1477,20 @@
L2_ptep ptp,pte,t0,va,naitlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
iitlba pte,(%sr1,va)
iitlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1516,16 +1511,16 @@
L2_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1536,16 +1531,16 @@
L2_ptep ptp,pte,t0,va,naitlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
@@ -1568,14 +1563,14 @@
L3_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock0 spc,t0
+ tlb_unlock0 spc,t0
rfir
nop
#else
@@ -1588,8 +1583,8 @@
L2_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb_11 spc,pte,prot
@@ -1600,8 +1595,8 @@
idtlbp prot,(%sr1,va)
mtsp t1, %sr1 /* Restore sr1 */
- dbit_unlock0 spc,t0
+ tlb_unlock0 spc,t0
rfir
nop
@@ -1612,16 +1607,16 @@
L2_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb spc,pte,prot
f_extend pte,t1
- idtlbt pte,prot
- dbit_unlock0 spc,t0
+ idtlbt pte,prot
+ tlb_unlock0 spc,t0
rfir
nop
#endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 6548fd1..b99b39f 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -43,10 +43,6 @@
#include "../math-emu/math-emu.h" /* for handle_fpe() */
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
-#endif
-
static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
struct pt_regs *regs);
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index ccde8f0..112ccf4 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -52,6 +52,22 @@
.text
/*
+ * Used by threads when the lock bit of core_idle_state is set.
+ * Threads will spin in HMT_LOW until the lock bit is cleared.
+ * r14 - pointer to core_idle_state
+ * r15 - used to load contents of core_idle_state
+ */
+
+core_idle_lock_held:
+ HMT_LOW
+3: lwz r15,0(r14)
+ andi. r15,r15,PNV_CORE_IDLE_LOCK_BIT
+ bne 3b
+ HMT_MEDIUM
+ lwarx r15,0,r14
+ blr
+
+/*
* Pass requested state in r3:
* r3 - PNV_THREAD_NAP/SLEEP/WINKLE
*
@@ -150,6 +166,10 @@
ld r14,PACA_CORE_IDLE_STATE_PTR(r13)
lwarx_loop1:
lwarx r15,0,r14
+
+ andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT
+ bnel core_idle_lock_held
+
andc r15,r15,r7 /* Clear thread bit */
andi. r15,r15,PNV_CORE_IDLE_THREAD_BITS
@@ -294,7 +314,7 @@
* workaround undo code or resyncing timebase or restoring context
* In either case loop until the lock bit is cleared.
*/
- bne core_idle_lock_held
+ bnel core_idle_lock_held
cmpwi cr2,r15,0
lbz r4,PACA_SUBCORE_SIBLING_MASK(r13)
@@ -319,15 +339,6 @@
isync
b common_exit
-core_idle_lock_held:
- HMT_LOW
-core_idle_lock_loop:
- lwz r15,0(14)
- andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT
- bne core_idle_lock_loop
- HMT_MEDIUM
- b lwarx_loop2
-
first_thread_in_subcore:
/* First thread in subcore to wakeup */
ori r15,r15,PNV_CORE_IDLE_LOCK_BIT
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 6530f1b..37de90f 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -297,6 +297,8 @@
__this_cpu_inc(irq_stat.mce_exceptions);
+ add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
handled = cur_cpu_spec->machine_check_early(regs);
return handled;
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 6d53597..a67c6d7 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -529,6 +529,10 @@
printk(KERN_ALERT "Unable to handle kernel paging request for "
"instruction fetch\n");
break;
+ case 0x600:
+ printk(KERN_ALERT "Unable to handle kernel paging request for "
+ "unaligned access at address 0x%08lx\n", regs->dar);
+ break;
default:
printk(KERN_ALERT "Unable to handle kernel paging request for "
"unknown fault\n");
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index ec2eb20..df95629 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -320,6 +320,8 @@
if (!attr)
return NULL;
+ sysfs_attr_init(&attr->attr.attr);
+
attr->var = str;
attr->attr.attr.name = name;
attr->attr.attr.mode = 0444;
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 1ba6307..11634fa 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -166,7 +166,7 @@
mutex_lock(&d_inode(dir)->i_mutex);
list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) {
spin_lock(&dentry->d_lock);
- if (!(d_unhashed(dentry)) && d_really_is_positive(dentry)) {
+ if (simple_positive(dentry)) {
dget_dlock(dentry);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
index 4949ef0..37f959b 100644
--- a/arch/powerpc/platforms/powernv/opal-elog.c
+++ b/arch/powerpc/platforms/powernv/opal-elog.c
@@ -237,7 +237,7 @@
return elog;
}
-static void elog_work_fn(struct work_struct *work)
+static irqreturn_t elog_event(int irq, void *data)
{
__be64 size;
__be64 id;
@@ -251,7 +251,7 @@
rc = opal_get_elog_size(&id, &size, &type);
if (rc != OPAL_SUCCESS) {
pr_err("ELOG: OPAL log info read failed\n");
- return;
+ return IRQ_HANDLED;
}
elog_size = be64_to_cpu(size);
@@ -270,16 +270,10 @@
* entries.
*/
if (kset_find_obj(elog_kset, name))
- return;
+ return IRQ_HANDLED;
create_elog_obj(log_id, elog_size, elog_type);
-}
-static DECLARE_WORK(elog_work, elog_work_fn);
-
-static irqreturn_t elog_event(int irq, void *data)
-{
- schedule_work(&elog_work);
return IRQ_HANDLED;
}
@@ -304,8 +298,8 @@
return irq;
}
- rc = request_irq(irq, elog_event,
- IRQ_TYPE_LEVEL_HIGH, "opal-elog", NULL);
+ rc = request_threaded_irq(irq, NULL, elog_event,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "opal-elog", NULL);
if (rc) {
pr_err("%s: Can't request OPAL event irq (%d)\n",
__func__, rc);
diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index 46cb3fe..4ece8e4 100644
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -112,6 +112,7 @@
static int opal_prd_mmap(struct file *file, struct vm_area_struct *vma)
{
size_t addr, size;
+ pgprot_t page_prot;
int rc;
pr_devel("opal_prd_mmap(0x%016lx, 0x%016lx, 0x%lx, 0x%lx)\n",
@@ -125,13 +126,11 @@
if (!opal_prd_range_is_valid(addr, size))
return -EINVAL;
- vma->vm_page_prot = __pgprot(pgprot_val(phys_mem_access_prot(file,
- vma->vm_pgoff,
- size, vma->vm_page_prot))
- | _PAGE_SPECIAL);
+ page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
+ size, vma->vm_page_prot);
rc = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, size,
- vma->vm_page_prot);
+ page_prot);
return rc;
}
diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
index 2bc3367..87f9623 100644
--- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
+++ b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
@@ -18,6 +18,7 @@
#include <linux/pci.h>
#include <linux/semaphore.h>
#include <asm/msi_bitmap.h>
+#include <asm/ppc-pci.h>
struct ppc4xx_hsta_msi {
struct device *dev;
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index d3f896a..b2e5902 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -62,18 +62,13 @@
hypfs_last_dentry = dentry;
}
-static inline int hypfs_positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
static void hypfs_remove(struct dentry *dentry)
{
struct dentry *parent;
parent = dentry->d_parent;
mutex_lock(&d_inode(parent)->i_mutex);
- if (hypfs_positive(dentry)) {
+ if (simple_positive(dentry)) {
if (d_is_dir(dentry))
simple_rmdir(d_inode(parent), dentry);
else
@@ -456,8 +451,6 @@
.show_options = hypfs_show_options,
};
-static struct kobject *s390_kobj;
-
static int __init hypfs_init(void)
{
int rc;
@@ -481,18 +474,16 @@
rc = -ENODATA;
goto fail_hypfs_sprp_exit;
}
- s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
- if (!s390_kobj) {
- rc = -ENOMEM;
+ rc = sysfs_create_mount_point(hypervisor_kobj, "s390");
+ if (rc)
goto fail_hypfs_diag0c_exit;
- }
rc = register_filesystem(&hypfs_type);
if (rc)
goto fail_filesystem;
return 0;
fail_filesystem:
- kobject_put(s390_kobj);
+ sysfs_remove_mount_point(hypervisor_kobj, "s390");
fail_hypfs_diag0c_exit:
hypfs_diag0c_exit();
fail_hypfs_sprp_exit:
@@ -510,7 +501,7 @@
static void __exit hypfs_exit(void)
{
unregister_filesystem(&hypfs_type);
- kobject_put(s390_kobj);
+ sysfs_remove_mount_point(hypervisor_kobj, "s390");
hypfs_diag0c_exit();
hypfs_sprp_exit();
hypfs_vm_exit();
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 35d3463..402b9c8 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -332,7 +332,7 @@
}
if (vma->vm_file) {
- p = d_path(&vma->vm_file->f_path, buf, bufsize);
+ p = file_path(vma->vm_file, buf, bufsize);
if (IS_ERR(p))
p = "?";
name = kbasename(p);
diff --git a/arch/tile/lib/memcpy_user_64.c b/arch/tile/lib/memcpy_user_64.c
index 88c7016..97bbb60 100644
--- a/arch/tile/lib/memcpy_user_64.c
+++ b/arch/tile/lib/memcpy_user_64.c
@@ -28,7 +28,7 @@
#define _ST(p, inst, v) \
({ \
asm("1: " #inst " %0, %1;" \
- ".pushsection .coldtext.memcpy,\"ax\";" \
+ ".pushsection .coldtext,\"ax\";" \
"2: { move r0, %2; jrp lr };" \
".section __ex_table,\"a\";" \
".align 8;" \
@@ -41,7 +41,7 @@
({ \
unsigned long __v; \
asm("1: " #inst " %0, %1;" \
- ".pushsection .coldtext.memcpy,\"ax\";" \
+ ".pushsection .coldtext,\"ax\";" \
"2: { move r0, %2; jrp lr };" \
".section __ex_table,\"a\";" \
".align 8;" \
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
index f7ddae3..6225cc9 100644
--- a/arch/tile/mm/elf.c
+++ b/arch/tile/mm/elf.c
@@ -56,7 +56,7 @@
if (exe_file == NULL)
goto done_free;
- path = d_path(&exe_file->f_path, buf, PAGE_SIZE);
+ path = file_path(exe_file, buf, PAGE_SIZE);
if (IS_ERR(path))
goto done_put;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 55bced1..3dbb7e7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -254,6 +254,11 @@
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
def_bool y
+config KASAN_SHADOW_OFFSET
+ hex
+ depends on KASAN
+ default 0xdffffc0000000000
+
config HAVE_INTEL_TXT
def_bool y
depends on INTEL_IOMMU && ACPI
@@ -2015,7 +2020,7 @@
To compile command line arguments into the kernel,
set this option to 'Y', then fill in the
- the boot arguments in CONFIG_CMDLINE.
+ boot arguments in CONFIG_CMDLINE.
Systems with fully functional boot loaders (i.e. non-embedded)
should leave this option set to 'N'.
diff --git a/arch/x86/include/asm/espfix.h b/arch/x86/include/asm/espfix.h
index 99efebb..ca3ce9a 100644
--- a/arch/x86/include/asm/espfix.h
+++ b/arch/x86/include/asm/espfix.h
@@ -9,7 +9,7 @@
DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
extern void init_espfix_bsp(void);
-extern void init_espfix_ap(void);
+extern void init_espfix_ap(int cpu);
#endif /* CONFIG_X86_64 */
diff --git a/arch/x86/include/asm/intel_pmc_ipc.h b/arch/x86/include/asm/intel_pmc_ipc.h
new file mode 100644
index 0000000..200ec2e
--- /dev/null
+++ b/arch/x86/include/asm/intel_pmc_ipc.h
@@ -0,0 +1,82 @@
+#ifndef _ASM_X86_INTEL_PMC_IPC_H_
+#define _ASM_X86_INTEL_PMC_IPC_H_
+
+/* Commands */
+#define PMC_IPC_PMIC_ACCESS 0xFF
+#define PMC_IPC_PMIC_ACCESS_READ 0x0
+#define PMC_IPC_PMIC_ACCESS_WRITE 0x1
+#define PMC_IPC_USB_PWR_CTRL 0xF0
+#define PMC_IPC_PMIC_BLACKLIST_SEL 0xEF
+#define PMC_IPC_PHY_CONFIG 0xEE
+#define PMC_IPC_NORTHPEAK_CTRL 0xED
+#define PMC_IPC_PM_DEBUG 0xEC
+#define PMC_IPC_PMC_TELEMTRY 0xEB
+#define PMC_IPC_PMC_FW_MSG_CTRL 0xEA
+
+/* IPC return code */
+#define IPC_ERR_NONE 0
+#define IPC_ERR_CMD_NOT_SUPPORTED 1
+#define IPC_ERR_CMD_NOT_SERVICED 2
+#define IPC_ERR_UNABLE_TO_SERVICE 3
+#define IPC_ERR_CMD_INVALID 4
+#define IPC_ERR_CMD_FAILED 5
+#define IPC_ERR_EMSECURITY 6
+#define IPC_ERR_UNSIGNEDKERNEL 7
+
+#if IS_ENABLED(CONFIG_INTEL_PMC_IPC)
+
+/*
+ * intel_pmc_ipc_simple_command
+ * @cmd: command
+ * @sub: sub type
+ */
+int intel_pmc_ipc_simple_command(int cmd, int sub);
+
+/*
+ * intel_pmc_ipc_raw_cmd
+ * @cmd: command
+ * @sub: sub type
+ * @in: input data
+ * @inlen: input length in bytes
+ * @out: output data
+ * @outlen: output length in dwords
+ * @sptr: data writing to SPTR register
+ * @dptr: data writing to DPTR register
+ */
+int intel_pmc_ipc_raw_cmd(u32 cmd, u32 sub, u8 *in, u32 inlen,
+ u32 *out, u32 outlen, u32 dptr, u32 sptr);
+
+/*
+ * intel_pmc_ipc_command
+ * @cmd: command
+ * @sub: sub type
+ * @in: input data
+ * @inlen: input length in bytes
+ * @out: output data
+ * @outlen: output length in dwords
+ */
+int intel_pmc_ipc_command(u32 cmd, u32 sub, u8 *in, u32 inlen,
+ u32 *out, u32 outlen);
+
+#else
+
+static inline int intel_pmc_ipc_simple_command(int cmd, int sub)
+{
+ return -EINVAL;
+}
+
+static inline int intel_pmc_ipc_raw_cmd(u32 cmd, u32 sub, u8 *in, u32 inlen,
+ u32 *out, u32 outlen, u32 dptr, u32 sptr)
+{
+ return -EINVAL;
+}
+
+static inline int intel_pmc_ipc_command(u32 cmd, u32 sub, u8 *in, u32 inlen,
+ u32 *out, u32 outlen)
+{
+ return -EINVAL;
+}
+
+#endif /*CONFIG_INTEL_PMC_IPC*/
+
+#endif
diff --git a/arch/x86/include/asm/kasan.h b/arch/x86/include/asm/kasan.h
index 8b22422..74a2a8d 100644
--- a/arch/x86/include/asm/kasan.h
+++ b/arch/x86/include/asm/kasan.h
@@ -14,15 +14,11 @@
#ifndef __ASSEMBLY__
-extern pte_t kasan_zero_pte[];
-extern pte_t kasan_zero_pmd[];
-extern pte_t kasan_zero_pud[];
-
#ifdef CONFIG_KASAN
-void __init kasan_map_early_shadow(pgd_t *pgd);
+void __init kasan_early_init(void);
void __init kasan_init(void);
#else
-static inline void kasan_map_early_shadow(pgd_t *pgd) { }
+static inline void kasan_early_init(void) { }
static inline void kasan_init(void) { }
#endif
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c7fa57b..2a7f5d7 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -607,7 +607,7 @@
struct kvm_pic *vpic;
struct kvm_ioapic *vioapic;
struct kvm_pit *vpit;
- int vapics_in_nmi_mode;
+ atomic_t vapics_in_nmi_mode;
struct mutex apic_map_lock;
struct kvm_apic_map *apic_map;
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index ce6068d..8fba544 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -199,6 +199,17 @@
#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6
#define HV_X64_MSR_STIMER3_COUNT 0x400000B7
+/* Hyper-V guest crash notification MSR's */
+#define HV_X64_MSR_CRASH_P0 0x40000100
+#define HV_X64_MSR_CRASH_P1 0x40000101
+#define HV_X64_MSR_CRASH_P2 0x40000102
+#define HV_X64_MSR_CRASH_P3 0x40000103
+#define HV_X64_MSR_CRASH_P4 0x40000104
+#define HV_X64_MSR_CRASH_CTL 0x40000105
+#define HV_X64_MSR_CRASH_CTL_NOTIFY (1ULL << 63)
+#define HV_X64_MSR_CRASH_PARAMS \
+ (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
+
#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 28eba2d..f813261 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -409,12 +409,6 @@
int irq, vector;
struct apic_chip_data *data;
- /*
- * vector_lock will make sure that we don't run into irq vector
- * assignments that might be happening on another cpu in parallel,
- * while we setup our initial vector to irq mappings.
- */
- raw_spin_lock(&vector_lock);
/* Mark the inuse vectors */
for_each_active_irq(irq) {
data = apic_chip_data(irq_get_irq_data(irq));
@@ -436,16 +430,16 @@
if (!cpumask_test_cpu(cpu, data->domain))
per_cpu(vector_irq, cpu)[vector] = VECTOR_UNDEFINED;
}
- raw_spin_unlock(&vector_lock);
}
/*
- * Setup the vector to irq mappings.
+ * Setup the vector to irq mappings. Must be called with vector_lock held.
*/
void setup_vector_irq(int cpu)
{
int irq;
+ lockdep_assert_held(&vector_lock);
/*
* On most of the platforms, legacy PIC delivers the interrupts on the
* boot cpu. But there are certain platforms where PIC interrupts are
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 9fc5e3d..922c5e0 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -742,7 +742,6 @@
cpu_detect(c);
get_cpu_vendor(c);
get_cpu_cap(c);
- fpu__init_system(c);
if (this_cpu->c_early_init)
this_cpu->c_early_init(c);
@@ -754,6 +753,7 @@
this_cpu->c_bsp_init(c);
setup_force_cpu_cap(X86_FEATURE_ALWAYS);
+ fpu__init_system(c);
}
void __init early_cpu_init(void)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 5801a14..3658de4 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -357,34 +357,24 @@
*/
int x86_add_exclusive(unsigned int what)
{
- int ret = -EBUSY, i;
+ int i;
- if (atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what]))
- return 0;
-
- mutex_lock(&pmc_reserve_mutex);
- for (i = 0; i < ARRAY_SIZE(x86_pmu.lbr_exclusive); i++) {
- if (i != what && atomic_read(&x86_pmu.lbr_exclusive[i]))
- goto out;
+ if (!atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what])) {
+ mutex_lock(&pmc_reserve_mutex);
+ for (i = 0; i < ARRAY_SIZE(x86_pmu.lbr_exclusive); i++) {
+ if (i != what && atomic_read(&x86_pmu.lbr_exclusive[i]))
+ goto fail_unlock;
+ }
+ atomic_inc(&x86_pmu.lbr_exclusive[what]);
+ mutex_unlock(&pmc_reserve_mutex);
}
- atomic_inc(&x86_pmu.lbr_exclusive[what]);
- ret = 0;
+ atomic_inc(&active_events);
+ return 0;
-out:
+fail_unlock:
mutex_unlock(&pmc_reserve_mutex);
-
- /*
- * Assuming that all exclusive events will share the PMI handler
- * (which checks active_events for whether there is work to do),
- * we can bump active_events counter right here, except for
- * x86_lbr_exclusive_lbr events that go through x86_pmu_event_init()
- * path, which already bumps active_events for them.
- */
- if (!ret && what != x86_lbr_exclusive_lbr)
- atomic_inc(&active_events);
-
- return ret;
+ return -EBUSY;
}
void x86_del_exclusive(unsigned int what)
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 89427d8..eec40f5 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -175,7 +175,9 @@
}
if (*s) {
- if (kstrtoul(s, 0, &baud) < 0 || baud == 0)
+ baud = simple_strtoull(s, &e, 0);
+
+ if (baud == 0 || s == e)
baud = DEFAULT_BAUD;
}
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index f5d0730..ce95676 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -131,25 +131,24 @@
init_espfix_random();
/* The rest is the same as for any other processor */
- init_espfix_ap();
+ init_espfix_ap(0);
}
-void init_espfix_ap(void)
+void init_espfix_ap(int cpu)
{
- unsigned int cpu, page;
+ unsigned int page;
unsigned long addr;
pud_t pud, *pud_p;
pmd_t pmd, *pmd_p;
pte_t pte, *pte_p;
- int n;
+ int n, node;
void *stack_page;
pteval_t ptemask;
/* We only have to do this once... */
- if (likely(this_cpu_read(espfix_stack)))
+ if (likely(per_cpu(espfix_stack, cpu)))
return; /* Already initialized */
- cpu = smp_processor_id();
addr = espfix_base_addr(cpu);
page = cpu/ESPFIX_STACKS_PER_PAGE;
@@ -165,12 +164,15 @@
if (stack_page)
goto unlock_done;
+ node = cpu_to_node(cpu);
ptemask = __supported_pte_mask;
pud_p = &espfix_pud_page[pud_index(addr)];
pud = *pud_p;
if (!pud_present(pud)) {
- pmd_p = (pmd_t *)__get_free_page(PGALLOC_GFP);
+ struct page *page = alloc_pages_node(node, PGALLOC_GFP, 0);
+
+ pmd_p = (pmd_t *)page_address(page);
pud = __pud(__pa(pmd_p) | (PGTABLE_PROT & ptemask));
paravirt_alloc_pmd(&init_mm, __pa(pmd_p) >> PAGE_SHIFT);
for (n = 0; n < ESPFIX_PUD_CLONES; n++)
@@ -180,7 +182,9 @@
pmd_p = pmd_offset(&pud, addr);
pmd = *pmd_p;
if (!pmd_present(pmd)) {
- pte_p = (pte_t *)__get_free_page(PGALLOC_GFP);
+ struct page *page = alloc_pages_node(node, PGALLOC_GFP, 0);
+
+ pte_p = (pte_t *)page_address(page);
pmd = __pmd(__pa(pte_p) | (PGTABLE_PROT & ptemask));
paravirt_alloc_pte(&init_mm, __pa(pte_p) >> PAGE_SHIFT);
for (n = 0; n < ESPFIX_PMD_CLONES; n++)
@@ -188,7 +192,7 @@
}
pte_p = pte_offset_kernel(&pmd, addr);
- stack_page = (void *)__get_free_page(GFP_KERNEL);
+ stack_page = page_address(alloc_pages_node(node, GFP_KERNEL, 0));
pte = __pte(__pa(stack_page) | (__PAGE_KERNEL_RO & ptemask));
for (n = 0; n < ESPFIX_PTE_CLONES; n++)
set_pte(&pte_p[n*PTE_STRIDE], pte);
@@ -199,7 +203,7 @@
unlock_done:
mutex_unlock(&espfix_init_mutex);
done:
- this_cpu_write(espfix_stack, addr);
- this_cpu_write(espfix_waddr, (unsigned long)stack_page
- + (addr & ~PAGE_MASK));
+ per_cpu(espfix_stack, cpu) = addr;
+ per_cpu(espfix_waddr, cpu) = (unsigned long)stack_page
+ + (addr & ~PAGE_MASK);
}
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index fc878fe..3282679 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -95,11 +95,12 @@
unsigned int mask = 0;
if (cpu_has_fxsr) {
- struct fxregs_state fx_tmp __aligned(32) = { };
+ /* Static because GCC does not get 16-byte stack alignment right: */
+ static struct fxregs_state fxregs __initdata;
- asm volatile("fxsave %0" : "+m" (fx_tmp));
+ asm volatile("fxsave %0" : "+m" (fxregs));
- mask = fx_tmp.mxcsr_mask;
+ mask = fxregs.mxcsr_mask;
/*
* If zero then use the default features mask,
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 5a46681..f129a9a 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -161,11 +161,12 @@
/* Kill off the identity-map trampoline */
reset_early_page_tables();
- kasan_map_early_shadow(early_level4_pgt);
-
- /* clear bss before set_intr_gate with early_idt_handler */
clear_bss();
+ clear_page(init_level4_pgt);
+
+ kasan_early_init();
+
for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
set_intr_gate(i, early_idt_handler_array[i]);
load_idt((const struct desc_ptr *)&idt_descr);
@@ -177,12 +178,9 @@
*/
load_ucode_bsp();
- clear_page(init_level4_pgt);
/* set init_level4_pgt kernel high mapping*/
init_level4_pgt[511] = early_level4_pgt[511];
- kasan_map_early_shadow(init_level4_pgt);
-
x86_64_start_reservations(real_mode_data);
}
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index e5c27f7..1d40ca8 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -516,38 +516,9 @@
/* This must match the first entry in level2_kernel_pgt */
.quad 0x0000000000000000
-#ifdef CONFIG_KASAN
-#define FILL(VAL, COUNT) \
- .rept (COUNT) ; \
- .quad (VAL) ; \
- .endr
-
-NEXT_PAGE(kasan_zero_pte)
- FILL(kasan_zero_page - __START_KERNEL_map + _KERNPG_TABLE, 512)
-NEXT_PAGE(kasan_zero_pmd)
- FILL(kasan_zero_pte - __START_KERNEL_map + _KERNPG_TABLE, 512)
-NEXT_PAGE(kasan_zero_pud)
- FILL(kasan_zero_pmd - __START_KERNEL_map + _KERNPG_TABLE, 512)
-
-#undef FILL
-#endif
-
-
#include "../../x86/xen/xen-head.S"
__PAGE_ALIGNED_BSS
NEXT_PAGE(empty_zero_page)
.skip PAGE_SIZE
-#ifdef CONFIG_KASAN
-/*
- * This page used as early shadow. We don't use empty_zero_page
- * at early stages, stack instrumentation could write some garbage
- * to this page.
- * Latter we reuse it as zero shadow for large ranges of memory
- * that allowed to access, but not instrumented by kasan
- * (vmalloc/vmemmap ...).
- */
-NEXT_PAGE(kasan_zero_page)
- .skip PAGE_SIZE
-#endif
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 88b36648..c7dfe1b 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -347,14 +347,22 @@
if (!desc)
continue;
+ /*
+ * Protect against concurrent action removal,
+ * affinity changes etc.
+ */
+ raw_spin_lock(&desc->lock);
data = irq_desc_get_irq_data(desc);
cpumask_copy(&affinity_new, data->affinity);
cpumask_clear_cpu(this_cpu, &affinity_new);
/* Do not count inactive or per-cpu irqs. */
- if (!irq_has_action(irq) || irqd_is_per_cpu(data))
+ if (!irq_has_action(irq) || irqd_is_per_cpu(data)) {
+ raw_spin_unlock(&desc->lock);
continue;
+ }
+ raw_spin_unlock(&desc->lock);
/*
* A single irq may be mapped to multiple
* cpu's vector_irq[] (for example IOAPIC cluster
@@ -385,6 +393,9 @@
* vector. If the vector is marked in the used vectors
* bitmap or an irq is assigned to it, we don't count
* it as available.
+ *
+ * As this is an inaccurate snapshot anyway, we can do
+ * this w/o holding vector_lock.
*/
for (vector = FIRST_EXTERNAL_VECTOR;
vector < first_system_vector; vector++) {
@@ -486,6 +497,11 @@
*/
mdelay(1);
+ /*
+ * We can walk the vector array of this cpu without holding
+ * vector_lock because the cpu is already marked !online, so
+ * nothing else will touch it.
+ */
for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
unsigned int irr;
@@ -497,9 +513,9 @@
irq = __this_cpu_read(vector_irq[vector]);
desc = irq_to_desc(irq);
+ raw_spin_lock(&desc->lock);
data = irq_desc_get_irq_data(desc);
chip = irq_data_get_irq_chip(data);
- raw_spin_lock(&desc->lock);
if (chip->irq_retrigger) {
chip->irq_retrigger(data);
__this_cpu_write(vector_irq[vector], VECTOR_RETRIGGERED);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d3b95b8..80f874b 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -461,19 +461,18 @@
{
struct setup_data *data;
u64 pa_data;
- int found = 0;
pa_data = boot_params.hdr.setup_data;
+ if (!pa_data)
+ return;
+
while (pa_data) {
data = early_memremap(pa_data, sizeof(*data));
e820_update_range(pa_data, sizeof(*data)+data->len,
E820_RAM, E820_RESERVED_KERN);
- found = 1;
pa_data = data->next;
early_memunmap(data, sizeof(*data));
}
- if (!found)
- return;
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
memcpy(&e820_saved, &e820, sizeof(struct e820map));
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 8add66b..d3010aa 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -171,11 +171,6 @@
apic_ap_setup();
/*
- * Need to setup vector mappings before we enable interrupts.
- */
- setup_vector_irq(smp_processor_id());
-
- /*
* Save our processor parameters. Note: this information
* is needed for clock calibration.
*/
@@ -239,18 +234,13 @@
check_tsc_sync_target();
/*
- * Enable the espfix hack for this CPU
- */
-#ifdef CONFIG_X86_ESPFIX64
- init_espfix_ap();
-#endif
-
- /*
- * We need to hold vector_lock so there the set of online cpus
- * does not change while we are assigning vectors to cpus. Holding
- * this lock ensures we don't half assign or remove an irq from a cpu.
+ * Lock vector_lock and initialize the vectors on this cpu
+ * before setting the cpu online. We must set it online with
+ * vector_lock held to prevent a concurrent setup/teardown
+ * from seeing a half valid vector space.
*/
lock_vector_lock();
+ setup_vector_irq(smp_processor_id());
set_cpu_online(smp_processor_id(), true);
unlock_vector_lock();
cpu_set_state_online(smp_processor_id());
@@ -854,6 +844,13 @@
initial_code = (unsigned long)start_secondary;
stack_start = idle->thread.sp;
+ /*
+ * Enable the espfix hack for this CPU
+ */
+#ifdef CONFIG_X86_ESPFIX64
+ init_espfix_ap(cpu);
+#endif
+
/* So we see what's up */
announce_cpu(cpu, apicid);
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 5054497..7437b41 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -598,10 +598,19 @@
if (!pit_expect_msb(0xff-i, &delta, &d2))
break;
+ delta -= tsc;
+
+ /*
+ * Extrapolate the error and fail fast if the error will
+ * never be below 500 ppm.
+ */
+ if (i == 1 &&
+ d1 + d2 >= (delta * MAX_QUICK_PIT_ITERATIONS) >> 11)
+ return 0;
+
/*
* Iterate until the error is less than 500 ppm
*/
- delta -= tsc;
if (d1+d2 >= delta >> 11)
continue;
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 4dce6f8..f90952f 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -305,7 +305,7 @@
* LVT0 to NMI delivery. Other PIC interrupts are just sent to
* VCPU0, and only if its LVT0 is in EXTINT mode.
*/
- if (kvm->arch.vapics_in_nmi_mode > 0)
+ if (atomic_read(&kvm->arch.vapics_in_nmi_mode) > 0)
kvm_for_each_vcpu(i, vcpu, kvm)
kvm_apic_nmi_wd_deliver(vcpu);
}
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 36e9de1..954e98a 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1257,16 +1257,17 @@
static void apic_manage_nmi_watchdog(struct kvm_lapic *apic, u32 lvt0_val)
{
- int nmi_wd_enabled = apic_lvt_nmi_mode(kvm_apic_get_reg(apic, APIC_LVT0));
+ bool lvt0_in_nmi_mode = apic_lvt_nmi_mode(lvt0_val);
- if (apic_lvt_nmi_mode(lvt0_val)) {
- if (!nmi_wd_enabled) {
+ if (apic->lvt0_in_nmi_mode != lvt0_in_nmi_mode) {
+ apic->lvt0_in_nmi_mode = lvt0_in_nmi_mode;
+ if (lvt0_in_nmi_mode) {
apic_debug("Receive NMI setting on APIC_LVT0 "
"for cpu %d\n", apic->vcpu->vcpu_id);
- apic->vcpu->kvm->arch.vapics_in_nmi_mode++;
- }
- } else if (nmi_wd_enabled)
- apic->vcpu->kvm->arch.vapics_in_nmi_mode--;
+ atomic_inc(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
+ } else
+ atomic_dec(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
+ }
}
static int apic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val)
@@ -1597,6 +1598,7 @@
if (!(vcpu->kvm->arch.disabled_quirks & KVM_QUIRK_LINT0_REENABLED))
apic_set_reg(apic, APIC_LVT0,
SET_APIC_DELIVERY_MODE(0, APIC_MODE_EXTINT));
+ apic_manage_nmi_watchdog(apic, kvm_apic_get_reg(apic, APIC_LVT0));
apic_set_reg(apic, APIC_DFR, 0xffffffffU);
apic_set_spiv(apic, 0xff);
@@ -1822,6 +1824,7 @@
apic_update_ppr(apic);
hrtimer_cancel(&apic->lapic_timer.timer);
apic_update_lvtt(apic);
+ apic_manage_nmi_watchdog(apic, kvm_apic_get_reg(apic, APIC_LVT0));
update_divide_count(apic);
start_apic_timer(apic);
apic->irr_pending = true;
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index f2f4e10..7195274 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -26,6 +26,7 @@
struct kvm_vcpu *vcpu;
bool sw_enabled;
bool irr_pending;
+ bool lvt0_in_nmi_mode;
/* Number of bits set in ISR. */
s16 isr_count;
/* The highest vector set in ISR; if -1 - invalid, must scan ISR. */
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ac165c2..bbaf44e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2379,8 +2379,6 @@
int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
{
- u64 data;
-
switch (msr_info->index) {
case MSR_IA32_PLATFORM_ID:
case MSR_IA32_EBL_CR_POWERON:
@@ -2453,7 +2451,7 @@
/* TSC increment by tick */
msr_info->data = 1000ULL;
/* CPU multiplier */
- data |= (((uint64_t)4ULL) << 40);
+ msr_info->data |= (((uint64_t)4ULL) << 40);
break;
case MSR_EFER:
msr_info->data = vcpu->arch.efer;
diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c
index ddf9ecb..e342586 100644
--- a/arch/x86/lib/usercopy.c
+++ b/arch/x86/lib/usercopy.c
@@ -20,7 +20,7 @@
unsigned long ret;
if (__range_not_ok(from, n, TASK_SIZE))
- return 0;
+ return n;
/*
* Even though this function is typically called from NMI/IRQ context
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 4860906..e1840f3 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -1,3 +1,4 @@
+#define pr_fmt(fmt) "kasan: " fmt
#include <linux/bootmem.h>
#include <linux/kasan.h>
#include <linux/kdebug.h>
@@ -11,7 +12,19 @@
extern pgd_t early_level4_pgt[PTRS_PER_PGD];
extern struct range pfn_mapped[E820_X_MAX];
-extern unsigned char kasan_zero_page[PAGE_SIZE];
+static pud_t kasan_zero_pud[PTRS_PER_PUD] __page_aligned_bss;
+static pmd_t kasan_zero_pmd[PTRS_PER_PMD] __page_aligned_bss;
+static pte_t kasan_zero_pte[PTRS_PER_PTE] __page_aligned_bss;
+
+/*
+ * This page used as early shadow. We don't use empty_zero_page
+ * at early stages, stack instrumentation could write some garbage
+ * to this page.
+ * Latter we reuse it as zero shadow for large ranges of memory
+ * that allowed to access, but not instrumented by kasan
+ * (vmalloc/vmemmap ...).
+ */
+static unsigned char kasan_zero_page[PAGE_SIZE] __page_aligned_bss;
static int __init map_range(struct range *range)
{
@@ -36,7 +49,7 @@
pgd_clear(pgd_offset_k(start));
}
-void __init kasan_map_early_shadow(pgd_t *pgd)
+static void __init kasan_map_early_shadow(pgd_t *pgd)
{
int i;
unsigned long start = KASAN_SHADOW_START;
@@ -73,7 +86,7 @@
while (IS_ALIGNED(addr, PMD_SIZE) && addr + PMD_SIZE <= end) {
WARN_ON(!pmd_none(*pmd));
set_pmd(pmd, __pmd(__pa_nodebug(kasan_zero_pte)
- | __PAGE_KERNEL_RO));
+ | _KERNPG_TABLE));
addr += PMD_SIZE;
pmd = pmd_offset(pud, addr);
}
@@ -99,7 +112,7 @@
while (IS_ALIGNED(addr, PUD_SIZE) && addr + PUD_SIZE <= end) {
WARN_ON(!pud_none(*pud));
set_pud(pud, __pud(__pa_nodebug(kasan_zero_pmd)
- | __PAGE_KERNEL_RO));
+ | _KERNPG_TABLE));
addr += PUD_SIZE;
pud = pud_offset(pgd, addr);
}
@@ -124,7 +137,7 @@
while (IS_ALIGNED(addr, PGDIR_SIZE) && addr + PGDIR_SIZE <= end) {
WARN_ON(!pgd_none(*pgd));
set_pgd(pgd, __pgd(__pa_nodebug(kasan_zero_pud)
- | __PAGE_KERNEL_RO));
+ | _KERNPG_TABLE));
addr += PGDIR_SIZE;
pgd = pgd_offset_k(addr);
}
@@ -166,6 +179,26 @@
};
#endif
+void __init kasan_early_init(void)
+{
+ int i;
+ pteval_t pte_val = __pa_nodebug(kasan_zero_page) | __PAGE_KERNEL;
+ pmdval_t pmd_val = __pa_nodebug(kasan_zero_pte) | _KERNPG_TABLE;
+ pudval_t pud_val = __pa_nodebug(kasan_zero_pmd) | _KERNPG_TABLE;
+
+ for (i = 0; i < PTRS_PER_PTE; i++)
+ kasan_zero_pte[i] = __pte(pte_val);
+
+ for (i = 0; i < PTRS_PER_PMD; i++)
+ kasan_zero_pmd[i] = __pmd(pmd_val);
+
+ for (i = 0; i < PTRS_PER_PUD; i++)
+ kasan_zero_pud[i] = __pud(pud_val);
+
+ kasan_map_early_shadow(early_level4_pgt);
+ kasan_map_early_shadow(init_level4_pgt);
+}
+
void __init kasan_init(void)
{
int i;
@@ -176,6 +209,7 @@
memcpy(early_level4_pgt, init_level4_pgt, sizeof(early_level4_pgt));
load_cr3(early_level4_pgt);
+ __flush_tlb_all();
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
@@ -202,5 +236,8 @@
memset(kasan_zero_page, 0, PAGE_SIZE);
load_cr3(init_level4_pgt);
+ __flush_tlb_all();
init_task.kasan_depth = 0;
+
+ pr_info("Kernel address sanitizer initialized\n");
}
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index f15db00..114cf48 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -80,6 +80,26 @@
Say N to delete power /proc/acpi/ directories that have moved to /sys/
+config ACPI_REV_OVERRIDE_POSSIBLE
+ bool "Allow supported ACPI revision to be overriden"
+ depends on X86
+ default y
+ help
+ The platform firmware on some systems expects Linux to return "5" as
+ the supported ACPI revision which makes it expose system configuration
+ information in a special way.
+
+ For example, based on what ACPI exports as the supported revision,
+ Dell XPS 13 (2015) configures its audio device to either work in HDA
+ mode or in I2S mode, where the former is supposed to be used on Linux
+ until the latter is fully supported (in the kernel as well as in user
+ space).
+
+ This option enables a DMI-based quirk for the above Dell machine (so
+ that HDA audio is exposed by the platform firmware to the kernel) and
+ makes it possible to force the kernel to return "5" as the supported
+ ACPI revision via the "acpi_rev_override" command line switch.
+
config ACPI_EC_DEBUGFS
tristate "EC read/write access through /sys/kernel/debug/ec"
default n
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 569ee09..46b58ab 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -352,13 +352,16 @@
pdata->mmio_size = resource_size(rentry->res);
pdata->mmio_base = ioremap(rentry->res->start,
pdata->mmio_size);
- if (!pdata->mmio_base)
- goto err_out;
break;
}
acpi_dev_free_resource_list(&resource_list);
+ if (!pdata->mmio_base) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
pdata->dev_desc = dev_desc;
if (dev_desc->setup)
diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h
index 853aa2d..a8d8092 100644
--- a/drivers/acpi/acpica/accommon.h
+++ b/drivers/acpi/acpica/accommon.h
@@ -59,5 +59,8 @@
#include "acglobal.h" /* All global variables */
#include "achware.h" /* Hardware defines and interfaces */
#include "acutils.h" /* Utility interfaces */
+#ifndef ACPI_USE_SYSTEM_CLIBRARY
+#include "acclib.h" /* C library interfaces */
+#endif /* !ACPI_USE_SYSTEM_CLIBRARY */
#endif /* __ACCOMMON_H__ */
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index a0c4787..53f96a3 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -61,6 +61,8 @@
#if (!ACPI_REDUCED_HARDWARE)
ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
+ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_facs32);
+ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_facs64);
#endif /* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 1886bde..7ac9800 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -468,6 +468,8 @@
void acpi_ex_integer_to_string(char *dest, u64 value);
+void acpi_ex_pci_cls_to_string(char *dest, u8 class_code[3]);
+
u8 acpi_is_valid_space_id(u8 space_id);
/*
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index ffdb956..bc60096 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -213,6 +213,7 @@
#define ACPI_TABLE_INDEX_DSDT (0)
#define ACPI_TABLE_INDEX_FACS (1)
+#define ACPI_TABLE_INDEX_X_FACS (2)
struct acpi_find_context {
char *search_for;
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 952fbe0..0dd0882 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -66,6 +66,7 @@
#define ACPI_NS_PREFIX_IS_SCOPE 0x10
#define ACPI_NS_EXTERNAL 0x20
#define ACPI_NS_TEMPORARY 0x40
+#define ACPI_NS_OVERRIDE_IF_FOUND 0x80
/* Flags for acpi_ns_walk_namespace */
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 3e9720e..c81d98d 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -335,6 +335,7 @@
void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */
struct acpi_namespace_node *node; /* ref_of or Namepath */
union acpi_operand_object **where; /* Target of Index */
+ u8 *index_pointer; /* Used for Buffers and Strings */
u32 value; /* Used for Local/Arg/Index/ddb_handle */
};
diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h
index 87c7860..44997ca 100644
--- a/drivers/acpi/acpica/acstruct.h
+++ b/drivers/acpi/acpica/acstruct.h
@@ -82,6 +82,7 @@
u8 return_used;
u8 scope_depth;
u8 pass_number; /* Parse pass during table load */
+ u8 namespace_override; /* Override existing objects */
u8 result_size; /* Total elements for the result stack */
u8 result_count; /* Current number of occupied elements of result stack */
u32 aml_offset;
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index d49f5c7..6de0d35 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -205,66 +205,6 @@
void acpi_ut_subsystem_shutdown(void);
-/*
- * utclib - Local implementations of C library functions
- */
-#ifndef ACPI_USE_SYSTEM_CLIBRARY
-
-acpi_size acpi_ut_strlen(const char *string);
-
-char *acpi_ut_strchr(const char *string, int ch);
-
-char *acpi_ut_strcpy(char *dst_string, const char *src_string);
-
-char *acpi_ut_strncpy(char *dst_string,
- const char *src_string, acpi_size count);
-
-int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count);
-
-int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count);
-
-int acpi_ut_strcmp(const char *string1, const char *string2);
-
-char *acpi_ut_strcat(char *dst_string, const char *src_string);
-
-char *acpi_ut_strncat(char *dst_string,
- const char *src_string, acpi_size count);
-
-u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base);
-
-char *acpi_ut_strstr(char *string1, char *string2);
-
-void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count);
-
-void *acpi_ut_memset(void *dest, u8 value, acpi_size count);
-
-int acpi_ut_to_upper(int c);
-
-int acpi_ut_to_lower(int c);
-
-extern const u8 _acpi_ctype[];
-
-#define _ACPI_XA 0x00 /* extra alphabetic - not supported */
-#define _ACPI_XS 0x40 /* extra space */
-#define _ACPI_BB 0x00 /* BEL, BS, etc. - not supported */
-#define _ACPI_CN 0x20 /* CR, FF, HT, NL, VT */
-#define _ACPI_DI 0x04 /* '0'-'9' */
-#define _ACPI_LO 0x02 /* 'a'-'z' */
-#define _ACPI_PU 0x10 /* punctuation */
-#define _ACPI_SP 0x08 /* space, tab, CR, LF, VT, FF */
-#define _ACPI_UP 0x01 /* 'A'-'Z' */
-#define _ACPI_XD 0x80 /* '0'-'9', 'A'-'F', 'a'-'f' */
-
-#define ACPI_IS_DIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
-#define ACPI_IS_SPACE(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
-#define ACPI_IS_XDIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
-#define ACPI_IS_UPPER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
-#define ACPI_IS_LOWER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
-#define ACPI_IS_PRINT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP | _ACPI_DI | _ACPI_XS | _ACPI_PU))
-#define ACPI_IS_ALPHA(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP))
-
-#endif /* !ACPI_USE_SYSTEM_CLIBRARY */
-
#define ACPI_IS_ASCII(c) ((c) < 0x80)
/*
@@ -430,6 +370,10 @@
acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
struct acpi_pnp_device_id_list ** return_cid_list);
+acpi_status
+acpi_ut_execute_CLS(struct acpi_namespace_node *device_node,
+ struct acpi_pnp_device_id **return_id);
+
/*
* utlock - reader/writer locks
*/
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index 43b40de..20de148 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -502,7 +502,7 @@
}
}
- ACPI_MEMSET(&info, 0, sizeof(struct acpi_create_field_info));
+ memset(&info, 0, sizeof(struct acpi_create_field_info));
/* Second arg is the field flags */
diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index bbe74bc..95779e8 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -207,7 +207,7 @@
/* Set all init info to zero */
- ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+ memset(&info, 0, sizeof(struct acpi_init_walk_info));
info.owner_id = owner_id;
info.table_index = table_index;
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 8a7b07b..2beb7fd 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -339,8 +339,8 @@
/* Initialize buffer from the byte_list (if present) */
if (byte_list) {
- ACPI_MEMCPY(obj_desc->buffer.pointer,
- byte_list->named.data, byte_list_length);
+ memcpy(obj_desc->buffer.pointer, byte_list->named.data,
+ byte_list_length);
}
}
@@ -750,8 +750,7 @@
case ACPI_TYPE_STRING:
obj_desc->string.pointer = op->common.value.string;
- obj_desc->string.length =
- (u32) ACPI_STRLEN(op->common.value.string);
+ obj_desc->string.length = (u32)strlen(op->common.value.string);
/*
* The string is contained in the ACPI table, don't ever try
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index deeddd6..ebc577b 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -572,8 +572,8 @@
obj_desc =
acpi_ut_create_string_object((acpi_size) name_length);
- ACPI_STRNCPY(obj_desc->string.pointer,
- name_string, name_length);
+ strncpy(obj_desc->string.pointer,
+ name_string, name_length);
status = AE_OK;
} else {
/*
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 843942f..845ff44 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -315,10 +315,19 @@
flags = ACPI_NS_NO_UPSEARCH;
if ((walk_state->opcode != AML_SCOPE_OP) &&
(!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
- flags |= ACPI_NS_ERROR_IF_FOUND;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "[%s] Cannot already exist\n",
- acpi_ut_get_type_name(object_type)));
+ if (walk_state->namespace_override) {
+ flags |= ACPI_NS_OVERRIDE_IF_FOUND;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[%s] Override allowed\n",
+ acpi_ut_get_type_name
+ (object_type)));
+ } else {
+ flags |= ACPI_NS_ERROR_IF_FOUND;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[%s] Cannot already exist\n",
+ acpi_ut_get_type_name
+ (object_type)));
+ }
} else {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"[%s] Both Find or Create allowed\n",
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 8840296..ea4c0d3 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -377,7 +377,7 @@
/* 4) The last two characters of the name are the hex GPE Number */
- gpe_number = ACPI_STRTOUL(&name[2], NULL, 16);
+ gpe_number = strtoul(&name[2], NULL, 16);
if (gpe_number == ACPI_UINT32_MAX) {
/* Conversion failed; invalid method, just ignore it */
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 6e0df2b..24a4c5c 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -470,7 +470,7 @@
return_ACPI_STATUS(AE_NO_MEMORY);
}
- ACPI_MEMCPY(table, table_header, length);
+ memcpy(table, table_header, length);
break;
default:
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index 89a976b..075d654 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -227,9 +227,8 @@
/* Copy the integer to the buffer, LSB first */
new_buf = return_desc->buffer.pointer;
- ACPI_MEMCPY(new_buf,
- &obj_desc->integer.value,
- acpi_gbl_integer_byte_width);
+ memcpy(new_buf,
+ &obj_desc->integer.value, acpi_gbl_integer_byte_width);
break;
case ACPI_TYPE_STRING:
@@ -252,8 +251,8 @@
/* Copy the string to the buffer */
new_buf = return_desc->buffer.pointer;
- ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer,
- obj_desc->string.length);
+ strncpy((char *)new_buf, (char *)obj_desc->string.pointer,
+ obj_desc->string.length);
break;
default:
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index e67d0ac..815442b 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -76,6 +76,8 @@
{
u32 i;
u32 timer;
+ union acpi_operand_object *object_desc;
+ u32 value;
ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
@@ -254,8 +256,44 @@
object)->object,
level + 4, 0);
} else {
- acpi_ex_do_debug_object(source_desc->reference.
- object, level + 4, 0);
+ object_desc = source_desc->reference.object;
+ value = source_desc->reference.value;
+
+ switch (object_desc->common.type) {
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf("Buffer[%u] = 0x%2.2X\n",
+ value,
+ *source_desc->reference.
+ index_pointer);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf
+ ("String[%u] = \"%c\" (0x%2.2X)\n",
+ value,
+ *source_desc->reference.
+ index_pointer,
+ *source_desc->reference.
+ index_pointer);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ acpi_os_printf("Package[%u] = ", value);
+ acpi_ex_do_debug_object(*source_desc->
+ reference.where,
+ level + 4, 0);
+ break;
+
+ default:
+
+ acpi_os_printf
+ ("Unknown Reference object type %X\n",
+ object_desc->common.type);
+ break;
+ }
}
}
break;
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 1da52be..401e7ed 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -224,7 +224,7 @@
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"}
};
-static struct acpi_exdump_info acpi_ex_dump_reference[8] = {
+static struct acpi_exdump_info acpi_ex_dump_reference[9] = {
{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL},
{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"},
{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"},
@@ -232,6 +232,8 @@
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"},
{ACPI_EXD_NODE, ACPI_EXD_OFFSET(reference.node), "Node"},
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.index_pointer),
+ "Index Pointer"},
{ACPI_EXD_REFERENCE, 0, NULL}
};
@@ -1005,14 +1007,13 @@
} else if (obj_desc->reference.object) {
if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
ACPI_DESC_TYPE_OPERAND) {
- acpi_os_printf(" Target: %p",
+ acpi_os_printf("%22s %p", "Target :",
obj_desc->reference.object);
if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) {
acpi_os_printf(" Table Index: %X\n",
obj_desc->reference.value);
} else {
- acpi_os_printf(" Target: %p [%s]\n",
- obj_desc->reference.object,
+ acpi_os_printf(" [%s]\n",
acpi_ut_get_type_name(((union
acpi_operand_object
*)
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index c161dd9..61fd9c7 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -428,7 +428,7 @@
}
buffer = buffer_desc->buffer.pointer;
- ACPI_MEMCPY(buffer, source_desc->buffer.pointer, length);
+ memcpy(buffer, source_desc->buffer.pointer, length);
/* Lock entire transaction if requested */
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 725a374..70b7bbb 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -416,22 +416,22 @@
* Copy the data from the source buffer.
* Length is the field width in bytes.
*/
- ACPI_MEMCPY(value,
- (obj_desc->buffer_field.buffer_obj)->buffer.
- pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width);
+ memcpy(value,
+ (obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width);
} else {
/*
* Copy the data to the target buffer.
* Length is the field width in bytes.
*/
- ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer.
- pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset, value,
- obj_desc->common_field.access_byte_width);
+ memcpy((obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset, value,
+ obj_desc->common_field.access_byte_width);
}
status = AE_OK;
@@ -703,7 +703,7 @@
return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
}
- ACPI_MEMSET(buffer, 0, buffer_length);
+ memset(buffer, 0, buffer_length);
access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width);
/* Handle the simple case here */
@@ -720,7 +720,7 @@
status =
acpi_ex_field_datum_io(obj_desc, 0, &raw_datum,
ACPI_READ);
- ACPI_MEMCPY(buffer, &raw_datum, buffer_length);
+ memcpy(buffer, &raw_datum, buffer_length);
}
return_ACPI_STATUS(status);
@@ -793,9 +793,9 @@
/* Write merged datum to target buffer */
- ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ memcpy(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
buffer_offset += obj_desc->common_field.access_byte_width;
merged_datum =
@@ -811,9 +811,9 @@
/* Write the last datum to the buffer */
- ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ memcpy(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
return_ACPI_STATUS(AE_OK);
}
@@ -878,7 +878,7 @@
* at Byte zero. All unused (upper) bytes of the
* buffer will be 0.
*/
- ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length);
+ memcpy((char *)new_buffer, (char *)buffer, buffer_length);
buffer = new_buffer;
buffer_length = required_length;
}
@@ -918,9 +918,9 @@
/* Get initial Datum from the input buffer */
- ACPI_MEMCPY(&raw_datum, buffer,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ memcpy(&raw_datum, buffer,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
merged_datum =
raw_datum << obj_desc->common_field.start_field_bit_offset;
@@ -970,9 +970,9 @@
/* Get the next input datum from the buffer */
buffer_offset += obj_desc->common_field.access_byte_width;
- ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ memcpy(&raw_datum, ((char *)buffer) + buffer_offset,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
merged_datum |=
raw_datum << obj_desc->common_field.start_field_bit_offset;
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index b56fc9d..d02afec 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -209,8 +209,8 @@
* end_tag descriptor is copied from Operand1.
*/
new_buf = return_desc->buffer.pointer;
- ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0);
- ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1);
+ memcpy(new_buf, operand0->buffer.pointer, length0);
+ memcpy(new_buf + length0, operand1->buffer.pointer, length1);
/* Insert end_tag and set the checksum to zero, means "ignore checksum" */
@@ -318,14 +318,14 @@
/* Copy the first integer, LSB first */
- ACPI_MEMCPY(new_buf, &operand0->integer.value,
- acpi_gbl_integer_byte_width);
+ memcpy(new_buf, &operand0->integer.value,
+ acpi_gbl_integer_byte_width);
/* Copy the second integer (LSB first) after the first */
- ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width,
- &local_operand1->integer.value,
- acpi_gbl_integer_byte_width);
+ memcpy(new_buf + acpi_gbl_integer_byte_width,
+ &local_operand1->integer.value,
+ acpi_gbl_integer_byte_width);
break;
case ACPI_TYPE_STRING:
@@ -346,9 +346,9 @@
/* Concatenate the strings */
- ACPI_STRCPY(new_buf, operand0->string.pointer);
- ACPI_STRCPY(new_buf + operand0->string.length,
- local_operand1->string.pointer);
+ strcpy(new_buf, operand0->string.pointer);
+ strcpy(new_buf + operand0->string.length,
+ local_operand1->string.pointer);
break;
case ACPI_TYPE_BUFFER:
@@ -369,11 +369,11 @@
/* Concatenate the buffers */
- ACPI_MEMCPY(new_buf, operand0->buffer.pointer,
- operand0->buffer.length);
- ACPI_MEMCPY(new_buf + operand0->buffer.length,
- local_operand1->buffer.pointer,
- local_operand1->buffer.length);
+ memcpy(new_buf, operand0->buffer.pointer,
+ operand0->buffer.length);
+ memcpy(new_buf + operand0->buffer.length,
+ local_operand1->buffer.pointer,
+ local_operand1->buffer.length);
break;
default:
@@ -660,9 +660,9 @@
/* Lexicographic compare: compare the data bytes */
- compare = ACPI_MEMCMP(operand0->buffer.pointer,
- local_operand1->buffer.pointer,
- (length0 > length1) ? length1 : length0);
+ compare = memcmp(operand0->buffer.pointer,
+ local_operand1->buffer.pointer,
+ (length0 > length1) ? length1 : length0);
switch (opcode) {
case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */
diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c
index 453b00c..20e8781 100644
--- a/drivers/acpi/acpica/exnames.c
+++ b/drivers/acpi/acpica/exnames.c
@@ -192,7 +192,7 @@
char_buf[4] = '\0';
if (name_string) {
- ACPI_STRCAT(name_string, char_buf);
+ strcat(name_string, char_buf);
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
"Appended to - %s\n", name_string));
} else {
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index fcc618a..b8944eb 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -337,8 +337,8 @@
* Copy the raw buffer data with no transform.
* (NULL terminated already)
*/
- ACPI_MEMCPY(return_desc->string.pointer,
- operand[0]->buffer.pointer, length);
+ memcpy(return_desc->string.pointer,
+ operand[0]->buffer.pointer, length);
break;
case AML_CONCAT_RES_OP:
@@ -380,6 +380,8 @@
return_desc->reference.target_type =
ACPI_TYPE_BUFFER_FIELD;
+ return_desc->reference.index_pointer =
+ &(operand[0]->buffer.pointer[index]);
break;
case ACPI_TYPE_BUFFER:
@@ -391,6 +393,8 @@
return_desc->reference.target_type =
ACPI_TYPE_BUFFER_FIELD;
+ return_desc->reference.index_pointer =
+ &(operand[0]->buffer.pointer[index]);
break;
case ACPI_TYPE_PACKAGE:
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index 1c64a98..fa100b3 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -237,8 +237,8 @@
/* We have a buffer, copy the portion requested */
- ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
- length);
+ memcpy(buffer, operand[0]->string.pointer + index,
+ length);
}
/* Set the length of the new String/Buffer */
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index f6c2f54..b4a5e44 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -517,15 +517,14 @@
switch (function) {
case ACPI_READ:
- ACPI_MEMCPY(ACPI_CAST_PTR(char, value),
- ACPI_PHYSADDR_TO_PTR(address),
- ACPI_DIV_8(bit_width));
+ memcpy(ACPI_CAST_PTR(char, value),
+ ACPI_PHYSADDR_TO_PTR(address), ACPI_DIV_8(bit_width));
break;
case ACPI_WRITE:
- ACPI_MEMCPY(ACPI_PHYSADDR_TO_PTR(address),
- ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
+ memcpy(ACPI_PHYSADDR_TO_PTR(address),
+ ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
break;
default:
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c
index 6fa3c8d..e1d4f4d 100644
--- a/drivers/acpi/acpica/exstorob.c
+++ b/drivers/acpi/acpica/exstorob.c
@@ -100,9 +100,9 @@
/* Clear existing buffer and copy in the new one */
- ACPI_MEMSET(target_desc->buffer.pointer, 0,
- target_desc->buffer.length);
- ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length);
+ memset(target_desc->buffer.pointer, 0,
+ target_desc->buffer.length);
+ memcpy(target_desc->buffer.pointer, buffer, length);
#ifdef ACPI_OBSOLETE_BEHAVIOR
/*
@@ -129,8 +129,8 @@
} else {
/* Truncate the source, copy only what will fit */
- ACPI_MEMCPY(target_desc->buffer.pointer, buffer,
- target_desc->buffer.length);
+ memcpy(target_desc->buffer.pointer, buffer,
+ target_desc->buffer.length);
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Truncating source buffer from %X to %X\n",
@@ -187,9 +187,9 @@
* String will fit in existing non-static buffer.
* Clear old string and copy in the new one
*/
- ACPI_MEMSET(target_desc->string.pointer, 0,
- (acpi_size) target_desc->string.length + 1);
- ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+ memset(target_desc->string.pointer, 0,
+ (acpi_size) target_desc->string.length + 1);
+ memcpy(target_desc->string.pointer, buffer, length);
} else {
/*
* Free the current buffer, then allocate a new buffer
@@ -210,7 +210,7 @@
}
target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
- ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+ memcpy(target_desc->string.pointer, buffer, length);
}
/* Set the new target length */
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 3f4225e..30c3f46 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -380,6 +380,38 @@
/*******************************************************************************
*
+ * FUNCTION: acpi_ex_pci_cls_to_string
+ *
+ * PARAMETERS: out_string - Where to put the converted string (7 bytes)
+ * PARAMETERS: class_code - PCI class code to be converted (3 bytes)
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Convert 3-bytes PCI class code to string representation.
+ * Return buffer must be large enough to hold the string. The
+ * string returned is always exactly of length
+ * ACPI_PCICLS_STRING_SIZE (includes null terminator).
+ *
+ ******************************************************************************/
+
+void acpi_ex_pci_cls_to_string(char *out_string, u8 class_code[3])
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* All 3 bytes are hexadecimal */
+
+ out_string[0] = acpi_ut_hex_to_ascii_char((u64)class_code[0], 4);
+ out_string[1] = acpi_ut_hex_to_ascii_char((u64)class_code[0], 0);
+ out_string[2] = acpi_ut_hex_to_ascii_char((u64)class_code[1], 4);
+ out_string[3] = acpi_ut_hex_to_ascii_char((u64)class_code[1], 0);
+ out_string[4] = acpi_ut_hex_to_ascii_char((u64)class_code[2], 4);
+ out_string[5] = acpi_ut_hex_to_ascii_char((u64)class_code[2], 0);
+ out_string[6] = 0;
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_is_valid_space_id
*
* PARAMETERS: space_id - ID to be validated
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 3b37676..52dfd0d 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -50,6 +50,13 @@
ACPI_MODULE_NAME("hwxfsleep")
/* Local prototypes */
+#if (!ACPI_REDUCED_HARDWARE)
+static acpi_status
+acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
+ acpi_physical_address physical_address,
+ acpi_physical_address physical_address64);
+#endif
+
static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
/*
@@ -72,6 +79,7 @@
/*
* These functions are removed for the ACPI_REDUCED_HARDWARE case:
+ * acpi_set_firmware_waking_vectors
* acpi_set_firmware_waking_vector
* acpi_set_firmware_waking_vector64
* acpi_enter_sleep_state_s4bios
@@ -80,20 +88,26 @@
#if (!ACPI_REDUCED_HARDWARE)
/*******************************************************************************
*
- * FUNCTION: acpi_set_firmware_waking_vector
+ * FUNCTION: acpi_hw_set_firmware_waking_vectors
*
- * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
+ * PARAMETERS: facs - Pointer to FACS table
+ * physical_address - 32-bit physical address of ACPI real mode
* entry point.
+ * physical_address64 - 64-bit physical address of ACPI protected
+ * mode entry point.
*
* RETURN: Status
*
- * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
+ * DESCRIPTION: Sets the firmware_waking_vector fields of the FACS
*
******************************************************************************/
-acpi_status acpi_set_firmware_waking_vector(u32 physical_address)
+static acpi_status
+acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
+ acpi_physical_address physical_address,
+ acpi_physical_address physical_address64)
{
- ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
+ ACPI_FUNCTION_TRACE(acpi_hw_set_firmware_waking_vectors);
/*
@@ -106,17 +120,92 @@
/* Set the 32-bit vector */
- acpi_gbl_FACS->firmware_waking_vector = physical_address;
+ facs->firmware_waking_vector = (u32)physical_address;
- /* Clear the 64-bit vector if it exists */
+ if (facs->length > 32) {
+ if (facs->version >= 1) {
- if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
- acpi_gbl_FACS->xfirmware_waking_vector = 0;
+ /* Set the 64-bit vector */
+
+ facs->xfirmware_waking_vector = physical_address64;
+ } else {
+ /* Clear the 64-bit vector if it exists */
+
+ facs->xfirmware_waking_vector = 0;
+ }
}
return_ACPI_STATUS(AE_OK);
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_firmware_waking_vectors
+ *
+ * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
+ * entry point.
+ * physical_address64 - 64-bit physical address of ACPI protected
+ * mode entry point.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Sets the firmware_waking_vector fields of the FACS
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_set_firmware_waking_vectors(acpi_physical_address physical_address,
+ acpi_physical_address physical_address64)
+{
+
+ ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vectors);
+
+ /* If Hardware Reduced flag is set, there is no FACS */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ if (acpi_gbl_facs32) {
+ (void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_facs32,
+ physical_address,
+ physical_address64);
+ }
+ if (acpi_gbl_facs64) {
+ (void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_facs64,
+ physical_address,
+ physical_address64);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vectors)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_firmware_waking_vector
+ *
+ * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
+ * entry point.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
+ *
+ ******************************************************************************/
+acpi_status acpi_set_firmware_waking_vector(u32 physical_address)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
+
+ status = acpi_set_firmware_waking_vectors((acpi_physical_address)
+ physical_address, 0);
+
+ return_ACPI_STATUS(status);
+}
+
ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
#if ACPI_MACHINE_WIDTH == 64
@@ -136,25 +225,19 @@
******************************************************************************/
acpi_status acpi_set_firmware_waking_vector64(u64 physical_address)
{
+ acpi_status status;
+
ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
+ status = acpi_set_firmware_waking_vectors(0,
+ (acpi_physical_address)
+ physical_address);
- /* Determine if the 64-bit vector actually exists */
-
- if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Clear 32-bit vector, set the 64-bit X_ vector */
-
- acpi_gbl_FACS->firmware_waking_vector = 0;
- acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
- return_ACPI_STATUS(AE_OK);
+ return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
#endif
-
/*******************************************************************************
*
* FUNCTION: acpi_enter_sleep_state_s4bios
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index 24fa19a..c687b99 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -102,7 +102,7 @@
/* _OSI is optional for now, will be permanent later */
- if (!ACPI_STRCMP(init_val->name, "_OSI")
+ if (!strcmp(init_val->name, "_OSI")
&& !acpi_gbl_create_osi_method) {
continue;
}
@@ -180,7 +180,7 @@
/* Build an object around the static string */
- obj_desc->string.length = (u32)ACPI_STRLEN(val);
+ obj_desc->string.length = (u32)strlen(val);
obj_desc->string.pointer = val;
obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
break;
@@ -203,7 +203,7 @@
/* Special case for ACPI Global Lock */
- if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
+ if (strcmp(init_val->name, "_GL_") == 0) {
acpi_gbl_global_lock_mutex = obj_desc;
/* Create additional counting semaphore for global lock */
@@ -304,7 +304,9 @@
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
+ local_flags = flags &
+ ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_OVERRIDE_IF_FOUND |
+ ACPI_NS_SEARCH_PARENT);
*return_node = ACPI_ENTRY_NOT_FOUND;
acpi_gbl_ns_lookup_count++;
@@ -547,6 +549,12 @@
if (flags & ACPI_NS_ERROR_IF_FOUND) {
local_flags |= ACPI_NS_ERROR_IF_FOUND;
}
+
+ /* Set override flag according to caller */
+
+ if (flags & ACPI_NS_OVERRIDE_IF_FOUND) {
+ local_flags |= ACPI_NS_OVERRIDE_IF_FOUND;
+ }
}
/* Extract one ACPI name from the front of the pathname */
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index 1a8b39c..da55a1c 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -187,8 +187,8 @@
* Copy the raw buffer data with no transform. String is already NULL
* terminated at Length+1.
*/
- ACPI_MEMCPY(new_object->string.pointer,
- original_object->buffer.pointer, length);
+ memcpy(new_object->string.pointer,
+ original_object->buffer.pointer, length);
break;
default:
@@ -251,9 +251,9 @@
return (AE_NO_MEMORY);
}
- ACPI_MEMCPY(new_object->buffer.pointer,
- original_object->string.pointer,
- original_object->string.length);
+ memcpy(new_object->buffer.pointer,
+ original_object->string.pointer,
+ original_object->string.length);
break;
case ACPI_TYPE_PACKAGE:
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index d259393..0f1daba 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -101,7 +101,7 @@
while (num_segments) {
for (i = 0; i < 4; i++) {
- ACPI_IS_PRINT(pathname[i]) ?
+ isprint((int)pathname[i]) ?
acpi_os_printf("%c", pathname[i]) :
acpi_os_printf("?");
}
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 7bcc68f..80670cb 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -59,15 +59,14 @@
*
* FUNCTION: acpi_ns_evaluate
*
- * PARAMETERS: info - Evaluation info block, contains:
+ * PARAMETERS: info - Evaluation info block, contains these fields
+ * and more:
* prefix_node - Prefix or Method/Object Node to execute
* relative_path - Name of method to execute, If NULL, the
* Node is the object to execute
* parameters - List of parameters to pass to the method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
* parameter_type - Type of Parameter list
* return_object - Where to put method's return value (if
* any). If NULL, no value is returned.
@@ -440,7 +439,7 @@
/* Initialize the evaluation information block */
- ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info));
+ memset(info, 0, sizeof(struct acpi_evaluate_info));
info->prefix_node = parent_node;
/*
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 4a85c45..b744a53 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -90,7 +90,7 @@
/* Set all init info to zero */
- ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+ memset(&info, 0, sizeof(struct acpi_init_walk_info));
/* Walk entire namespace from the supplied root */
@@ -566,7 +566,7 @@
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
(ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
- ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info));
+ memset(info, 0, sizeof(struct acpi_evaluate_info));
info->prefix_node = device_node;
info->relative_pathname = METHOD_NAME__INI;
info->parameters = NULL;
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index c95a119..57a4cfe 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -117,6 +117,13 @@
(u8) pass_number);
}
+ /* Found OSDT table, enable the namespace override feature */
+
+ if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT) &&
+ pass_number == ACPI_IMODE_LOAD_PASS1) {
+ walk_state->namespace_override = TRUE;
+ }
+
if (ACPI_FAILURE(status)) {
acpi_ds_delete_walk_state(walk_state);
goto cleanup;
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index c30672d..0515a70 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -580,7 +580,7 @@
* # is a hex digit.
*/
for (dest = new_string->string.pointer; *source; dest++, source++) {
- *dest = (char)ACPI_TOUPPER(*source);
+ *dest = (char)toupper((int)*source);
}
acpi_ut_remove_reference(return_object);
diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index 4a9d4a6..d739040 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -325,8 +325,41 @@
* If we found it AND the request specifies that a find is an error,
* return the error
*/
- if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) {
- status = AE_ALREADY_EXISTS;
+ if (status == AE_OK) {
+
+ /* The node was found in the namespace */
+
+ /*
+ * If the namespace override feature is enabled for this node,
+ * delete any existing attached sub-object and make the node
+ * look like a new node that is owned by the override table.
+ */
+ if (flags & ACPI_NS_OVERRIDE_IF_FOUND) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Namespace override: %4.4s pass %u type %X Owner %X\n",
+ ACPI_CAST_PTR(char,
+ &target_name),
+ interpreter_mode,
+ (*return_node)->type,
+ walk_state->owner_id));
+
+ acpi_ns_delete_children(*return_node);
+ if (acpi_gbl_runtime_namespace_override) {
+ acpi_ut_remove_reference((*return_node)->object);
+ (*return_node)->object = NULL;
+ (*return_node)->owner_id =
+ walk_state->owner_id;
+ } else {
+ acpi_ns_remove_node(*return_node);
+ *return_node = ACPI_ENTRY_NOT_FOUND;
+ }
+ }
+
+ /* Return an error if we don't expect to find the object */
+
+ else if (flags & ACPI_NS_ERROR_IF_FOUND) {
+ status = AE_ALREADY_EXISTS;
+ }
}
#ifdef ACPI_ASL_COMPILER
if (*return_node && (*return_node)->type == ACPI_TYPE_ANY) {
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 6ad0200..8d8104b8 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -292,8 +292,7 @@
} else {
/* Convert the character to uppercase and save it */
- result[i] =
- (char)ACPI_TOUPPER((int)*external_name);
+ result[i] = (char)toupper((int)*external_name);
external_name++;
}
}
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index b6030a2..6ee1e52 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -696,7 +696,7 @@
return (AE_CTRL_DEPTH);
}
- no_match = ACPI_STRCMP(hid->string, info->hid);
+ no_match = strcmp(hid->string, info->hid);
ACPI_FREE(hid);
if (no_match) {
@@ -715,8 +715,7 @@
found = FALSE;
for (i = 0; i < cid->count; i++) {
- if (ACPI_STRCMP(cid->ids[i].string, info->hid)
- == 0) {
+ if (strcmp(cid->ids[i].string, info->hid) == 0) {
/* Found a matching CID */
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index d66c326..9ff643b 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -114,7 +114,7 @@
/* Special case for root-only, since we can't search for it */
- if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
+ if (!strcmp(pathname, ACPI_NS_ROOT_PATH)) {
*ret_handle =
ACPI_CAST_PTR(acpi_handle, acpi_gbl_root_node);
return (AE_OK);
@@ -242,7 +242,7 @@
/* Copy actual string and return a pointer to the next string area */
- ACPI_MEMCPY(string_area, source->string, source->length);
+ memcpy(string_area, source->string, source->length);
return (string_area + source->length);
}
@@ -260,7 +260,7 @@
* control methods (Such as in the case of a device.)
*
* For Device and Processor objects, run the Device _HID, _UID, _CID, _SUB,
- * _STA, _ADR, _sx_w, and _sx_d methods.
+ * _CLS, _STA, _ADR, _sx_w, and _sx_d methods.
*
* Note: Allocates the return buffer, must be freed by the caller.
*
@@ -276,11 +276,12 @@
struct acpi_pnp_device_id *hid = NULL;
struct acpi_pnp_device_id *uid = NULL;
struct acpi_pnp_device_id *sub = NULL;
+ struct acpi_pnp_device_id *cls = NULL;
char *next_id_string;
acpi_object_type type;
acpi_name name;
u8 param_count = 0;
- u8 valid = 0;
+ u16 valid = 0;
u32 info_size;
u32 i;
acpi_status status;
@@ -320,7 +321,7 @@
if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
/*
* Get extra info for ACPI Device/Processor objects only:
- * Run the Device _HID, _UID, _SUB, and _CID methods.
+ * Run the Device _HID, _UID, _SUB, _CID, and _CLS methods.
*
* Note: none of these methods are required, so they may or may
* not be present for this device. The Info->Valid bitfield is used
@@ -363,6 +364,14 @@
sizeof(struct acpi_pnp_device_id_list));
valid |= ACPI_VALID_CID;
}
+
+ /* Execute the Device._CLS method */
+
+ status = acpi_ut_execute_CLS(node, &cls);
+ if (ACPI_SUCCESS(status)) {
+ info_size += cls->length;
+ valid |= ACPI_VALID_CLS;
+ }
}
/*
@@ -486,6 +495,11 @@
}
}
+ if (cls) {
+ next_id_string = acpi_ns_copy_device_id(&info->class_code,
+ cls, next_id_string);
+ }
+
/* Copy the fixed-length data */
info->info_size = info_size;
@@ -510,6 +524,9 @@
if (cid_list) {
ACPI_FREE(cid_list);
}
+ if (cls) {
+ ACPI_FREE(cls);
+ }
return (status);
}
@@ -620,7 +637,7 @@
/* Copy the method AML to the local buffer */
- ACPI_MEMCPY(aml_buffer, aml_start, aml_length);
+ memcpy(aml_buffer, aml_start, aml_length);
/* Initialize the method object with the new method's information */
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 960505a..3244091 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -93,10 +93,9 @@
op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
op->common.aml_opcode = opcode;
- ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name,
- (acpi_ps_get_opcode_info
- (opcode))->name,
- sizeof(op->common.aml_op_name)));
+ ACPI_DISASM_ONLY_MEMBERS(strncpy(op->common.aml_op_name,
+ (acpi_ps_get_opcode_info(opcode))->
+ name, sizeof(op->common.aml_op_name)));
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 15434e4..3fa829e 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -353,13 +353,13 @@
/* +1 to include null terminator */
user_prt->length +=
- (u32) ACPI_STRLEN(user_prt->source) + 1;
+ (u32)strlen(user_prt->source) + 1;
break;
case ACPI_TYPE_STRING:
- ACPI_STRCPY(user_prt->source,
- obj_desc->string.pointer);
+ strcpy(user_prt->source,
+ obj_desc->string.pointer);
/*
* Add to the Length field the length of the string
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 1fe49d2..ac37852 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -119,7 +119,7 @@
/*
* Get the resource type and the initial (minimum) length
*/
- ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
+ memset(resource, 0, INIT_RESOURCE_LENGTH(info));
resource->type = INIT_RESOURCE_TYPE(info);
resource->length = INIT_RESOURCE_LENGTH(info);
break;
@@ -324,13 +324,13 @@
case ACPI_RSC_SET8:
- ACPI_MEMSET(destination, info->aml_offset, info->value);
+ memset(destination, info->aml_offset, info->value);
break;
case ACPI_RSC_DATA8:
target = ACPI_ADD_PTR(char, resource, info->value);
- ACPI_MEMCPY(destination, source, ACPI_GET16(target));
+ memcpy(destination, source, ACPI_GET16(target));
break;
case ACPI_RSC_ADDRESS:
@@ -502,7 +502,7 @@
switch (info->opcode) {
case ACPI_RSC_INITSET:
- ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
+ memset(aml, 0, INIT_RESOURCE_LENGTH(info));
aml_length = INIT_RESOURCE_LENGTH(info);
acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
aml_length, aml);
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index ece3cd6..52b024d 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -148,7 +148,7 @@
case ACPI_RSC_MOVE_SERIAL_VEN:
case ACPI_RSC_MOVE_SERIAL_RES:
- ACPI_MEMCPY(destination, source, item_count);
+ memcpy(destination, source, item_count);
return;
/*
@@ -364,12 +364,11 @@
* Zero the entire area of the buffer.
*/
total_length =
- (u32)
- ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
+ (u32)strlen(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
1;
- total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
+ total_length = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
- ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
+ memset(resource_source->string_ptr, 0, total_length);
/* Copy the resource_source string to the destination */
@@ -432,8 +431,8 @@
/* Copy the resource_source string */
- ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]),
- resource_source->string_ptr);
+ strcpy(ACPI_CAST_PTR(char, &aml_resource_source[1]),
+ resource_source->string_ptr);
/*
* Add the length of the string (+ 1 for null terminator) to the
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 8e6276d..de51f83 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -398,8 +398,8 @@
/* Simple copy for 64 bit source */
- ACPI_MEMCPY(out, &resource->data,
- sizeof(struct acpi_resource_address64));
+ memcpy(out, &resource->data,
+ sizeof(struct acpi_resource_address64));
break;
default:
@@ -499,7 +499,7 @@
*/
if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) ||
(vendor->uuid_subtype != info->uuid->subtype) ||
- (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
+ (memcmp(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
return (AE_OK);
}
@@ -513,7 +513,7 @@
/* Found the correct resource, copy and return it */
- ACPI_MEMCPY(buffer->pointer, resource, resource->length);
+ memcpy(buffer->pointer, resource, resource->length);
buffer->length = resource->length;
/* Found the desired descriptor, terminate resource walk */
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index d7f8386..5c9d5ab 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -73,7 +73,7 @@
* Initialize the table descriptor. Set the pointer to NULL, since the
* table is not fully mapped at this time.
*/
- ACPI_MEMSET(table_desc, 0, sizeof(struct acpi_table_desc));
+ memset(table_desc, 0, sizeof(struct acpi_table_desc));
table_desc->address = address;
table_desc->length = table->length;
table_desc->flags = flags;
@@ -465,9 +465,9 @@
/* Copy and free the previous table array */
if (acpi_gbl_root_table_list.tables) {
- ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
- (acpi_size) table_count *
- sizeof(struct acpi_table_desc));
+ memcpy(tables, acpi_gbl_root_table_list.tables,
+ (acpi_size) table_count *
+ sizeof(struct acpi_table_desc));
if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
ACPI_FREE(acpi_gbl_root_table_list.tables);
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 7d24860..6253001 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -350,9 +350,18 @@
/* If Hardware Reduced flag is set, there is no FACS */
if (!acpi_gbl_reduced_hardware) {
- acpi_tb_install_fixed_table((acpi_physical_address)
- acpi_gbl_FADT.Xfacs, ACPI_SIG_FACS,
- ACPI_TABLE_INDEX_FACS);
+ if (acpi_gbl_FADT.facs) {
+ acpi_tb_install_fixed_table((acpi_physical_address)
+ acpi_gbl_FADT.facs,
+ ACPI_SIG_FACS,
+ ACPI_TABLE_INDEX_FACS);
+ }
+ if (acpi_gbl_FADT.Xfacs) {
+ acpi_tb_install_fixed_table((acpi_physical_address)
+ acpi_gbl_FADT.Xfacs,
+ ACPI_SIG_FACS,
+ ACPI_TABLE_INDEX_X_FACS);
+ }
}
}
@@ -389,12 +398,12 @@
/* Clear the entire local FADT */
- ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
+ memset(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
/* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
- ACPI_MEMCPY(&acpi_gbl_FADT, table,
- ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
+ memcpy(&acpi_gbl_FADT, table,
+ ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
/* Take a copy of the Hardware Reduced flag */
@@ -491,13 +500,9 @@
acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
/*
- * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
+ * Expand the 32-bit DSDT addresses to 64-bit as necessary.
* Later ACPICA code will always use the X 64-bit field.
*/
- acpi_gbl_FADT.Xfacs = acpi_tb_select_address("FACS",
- acpi_gbl_FADT.facs,
- acpi_gbl_FADT.Xfacs);
-
acpi_gbl_FADT.Xdsdt = acpi_tb_select_address("DSDT",
acpi_gbl_FADT.dsdt,
acpi_gbl_FADT.Xdsdt);
diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c
index 0b879fc..119c84a 100644
--- a/drivers/acpi/acpica/tbfind.c
+++ b/drivers/acpi/acpica/tbfind.c
@@ -76,16 +76,16 @@
/* Normalize the input strings */
- ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header));
+ memset(&header, 0, sizeof(struct acpi_table_header));
ACPI_MOVE_NAME(header.signature, signature);
- ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
- ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
+ strncpy(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
+ strncpy(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
/* Search for the table */
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
- if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature),
- header.signature, ACPI_NAME_SIZE)) {
+ if (memcmp(&(acpi_gbl_root_table_list.tables[i].signature),
+ header.signature, ACPI_NAME_SIZE)) {
/* Not the requested table */
@@ -112,21 +112,20 @@
/* Check for table match on all IDs */
- if (!ACPI_MEMCMP
+ if (!memcmp
(acpi_gbl_root_table_list.tables[i].pointer->signature,
header.signature, ACPI_NAME_SIZE) && (!oem_id[0]
||
- !ACPI_MEMCMP
+ !memcmp
(acpi_gbl_root_table_list.
tables[i].pointer->
oem_id,
header.oem_id,
ACPI_OEM_ID_SIZE))
&& (!oem_table_id[0]
- || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i].
- pointer->oem_table_id,
- header.oem_table_id,
- ACPI_OEM_TABLE_ID_SIZE))) {
+ || !memcmp(acpi_gbl_root_table_list.tables[i].pointer->
+ oem_table_id, header.oem_table_id,
+ ACPI_OEM_TABLE_ID_SIZE))) {
*table_index = i;
ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 008a251..15ea98e 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -87,8 +87,8 @@
* not just the header.
*/
is_identical = (u8)((table_desc->length != table_length ||
- ACPI_MEMCMP(table_desc->pointer, table,
- table_length)) ? FALSE : TRUE);
+ memcmp(table_desc->pointer, table, table_length)) ?
+ FALSE : TRUE);
/* Release the acquired table */
@@ -289,8 +289,7 @@
if ((new_table_desc.signature.ascii[0] != 0x00) &&
(!ACPI_COMPARE_NAME
(&new_table_desc.signature, ACPI_SIG_SSDT))
- && (ACPI_STRNCMP(new_table_desc.signature.ascii, "OEM", 3)))
- {
+ && (strncmp(new_table_desc.signature.ascii, "OEM", 3))) {
ACPI_BIOS_ERROR((AE_INFO,
"Table has invalid signature [%4.4s] (0x%8.8X), "
"must be SSDT or OEMx",
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 77ba5c7..709d511 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -73,7 +73,7 @@
{
while (length && *string) {
- if (!ACPI_IS_PRINT(*string)) {
+ if (!isprint((int)*string)) {
*string = '?';
}
string++;
@@ -100,7 +100,7 @@
struct acpi_table_header *header)
{
- ACPI_MEMCPY(out_header, header, sizeof(struct acpi_table_header));
+ memcpy(out_header, header, sizeof(struct acpi_table_header));
acpi_tb_fix_string(out_header->signature, ACPI_NAME_SIZE);
acpi_tb_fix_string(out_header->oem_id, ACPI_OEM_ID_SIZE);
@@ -138,9 +138,9 @@
/* RSDP has no common fields */
- ACPI_MEMCPY(local_header.oem_id,
- ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->oem_id, ACPI_OEM_ID_SIZE);
+ memcpy(local_header.oem_id,
+ ACPI_CAST_PTR(struct acpi_table_rsdp, header)->oem_id,
+ ACPI_OEM_ID_SIZE);
acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE);
ACPI_INFO((AE_INFO, "RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)",
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 6559a58..568ac0e 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -68,7 +68,6 @@
acpi_status acpi_tb_initialize_facs(void)
{
- acpi_status status;
/* If Hardware Reduced flag is set, there is no FACS */
@@ -77,11 +76,25 @@
return (AE_OK);
}
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &acpi_gbl_FACS));
- return (status);
+ (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_table_header,
+ &acpi_gbl_facs32));
+ (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_X_FACS,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_table_header,
+ &acpi_gbl_facs64));
+
+ if (acpi_gbl_facs64
+ && (!acpi_gbl_facs32 || !acpi_gbl_use32_bit_facs_addresses)) {
+ acpi_gbl_FACS = acpi_gbl_facs64;
+ } else if (acpi_gbl_facs32) {
+ acpi_gbl_FACS = acpi_gbl_facs32;
+ }
+
+ /* If there is no FACS, just continue. There was already an error msg */
+
+ return (AE_OK);
}
#endif /* !ACPI_REDUCED_HARDWARE */
@@ -101,7 +114,7 @@
u8 acpi_tb_tables_loaded(void)
{
- if (acpi_gbl_root_table_list.current_table_count >= 3) {
+ if (acpi_gbl_root_table_list.current_table_count >= 4) {
return (TRUE);
}
@@ -175,7 +188,7 @@
return (NULL);
}
- ACPI_MEMCPY(new_table, table_desc->pointer, table_desc->length);
+ memcpy(new_table, table_desc->pointer, table_desc->length);
acpi_tb_uninstall_table(table_desc);
acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.
@@ -357,11 +370,11 @@
table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header));
/*
- * First two entries in the table array are reserved for the DSDT
- * and FACS, which are not actually present in the RSDT/XSDT - they
- * come from the FADT
+ * First three entries in the table array are reserved for the DSDT
+ * and 32bit/64bit FACS, which are not actually present in the
+ * RSDT/XSDT - they come from the FADT
*/
- acpi_gbl_root_table_list.current_table_count = 2;
+ acpi_gbl_root_table_list.current_table_count = 3;
/* Initialize the root table array from the RSDT/XSDT */
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 60e94f8..5559e2c 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -119,9 +119,9 @@
} else {
/* Root Table Array has been statically allocated by the host */
- ACPI_MEMSET(initial_table_array, 0,
- (acpi_size) initial_table_count *
- sizeof(struct acpi_table_desc));
+ memset(initial_table_array, 0,
+ (acpi_size) initial_table_count *
+ sizeof(struct acpi_table_desc));
acpi_gbl_root_table_list.tables = initial_table_array;
acpi_gbl_root_table_list.max_table_count = initial_table_count;
@@ -242,8 +242,9 @@
if (!header) {
return (AE_NO_MEMORY);
}
- ACPI_MEMCPY(out_table_header, header,
- sizeof(struct acpi_table_header));
+
+ memcpy(out_table_header, header,
+ sizeof(struct acpi_table_header));
acpi_os_unmap_memory(header,
sizeof(struct
acpi_table_header));
@@ -251,9 +252,9 @@
return (AE_NOT_FOUND);
}
} else {
- ACPI_MEMCPY(out_table_header,
- acpi_gbl_root_table_list.tables[i].pointer,
- sizeof(struct acpi_table_header));
+ memcpy(out_table_header,
+ acpi_gbl_root_table_list.tables[i].pointer,
+ sizeof(struct acpi_table_header));
}
return (AE_OK);
}
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index aadb300..9682d40 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -150,8 +150,8 @@
* Save the original DSDT header for detection of table corruption
* and/or replacement of the DSDT from outside the OS.
*/
- ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
- sizeof(struct acpi_table_header));
+ memcpy(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
+ sizeof(struct acpi_table_header));
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
@@ -166,13 +166,18 @@
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
- if ((!ACPI_COMPARE_NAME
+ if (!acpi_gbl_root_table_list.tables[i].address ||
+ (!ACPI_COMPARE_NAME
(&(acpi_gbl_root_table_list.tables[i].signature),
ACPI_SIG_SSDT)
&&
!ACPI_COMPARE_NAME(&
(acpi_gbl_root_table_list.tables[i].
- signature), ACPI_SIG_PSDT))
+ signature), ACPI_SIG_PSDT)
+ &&
+ !ACPI_COMPARE_NAME(&
+ (acpi_gbl_root_table_list.tables[i].
+ signature), ACPI_SIG_OSDT))
||
ACPI_FAILURE(acpi_tb_validate_table
(&acpi_gbl_root_table_list.tables[i]))) {
@@ -219,9 +224,9 @@
ACPI_FUNCTION_TRACE(acpi_install_table);
if (physical) {
- flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL;
- } else {
flags = ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL;
+ } else {
+ flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL;
}
status = acpi_tb_install_standard_table(address, flags,
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index 61d8f6d..7a4101f 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -73,7 +73,7 @@
/* Clear the memory block */
- ACPI_MEMSET(allocation, 0, size);
+ memset(allocation, 0, size);
}
return (allocation);
@@ -181,7 +181,7 @@
char buffer[7];
if (acpi_gbl_display_final_mem_stats) {
- ACPI_STRCPY(buffer, "MEMORY");
+ strcpy(buffer, "MEMORY");
(void)acpi_db_display_statistics(buffer);
}
#endif
@@ -337,6 +337,6 @@
/* Have a valid buffer, clear it */
- ACPI_MEMSET(buffer->pointer, 0, required_length);
+ memset(buffer->pointer, 0, required_length);
return (AE_OK);
}
diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c
index a8c3964..01c8709 100644
--- a/drivers/acpi/acpica/utbuffer.c
+++ b/drivers/acpi/acpica/utbuffer.c
@@ -159,7 +159,7 @@
}
buf_char = buffer[(acpi_size) i + j];
- if (ACPI_IS_PRINT(buf_char)) {
+ if (isprint(buf_char)) {
acpi_os_printf("%c", buf_char);
} else {
acpi_os_printf(".");
@@ -319,7 +319,7 @@
}
buf_char = buffer[(acpi_size) i + j];
- if (ACPI_IS_PRINT(buf_char)) {
+ if (isprint(buf_char)) {
acpi_ut_file_printf(file, "%c", buf_char);
} else {
acpi_ut_file_printf(file, ".");
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index eacc5ee..0d21fbd 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -84,7 +84,7 @@
/* Populate the cache object and return it */
- ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
+ memset(cache, 0, sizeof(struct acpi_memory_list));
cache->list_name = cache_name;
cache->object_size = object_size;
cache->max_depth = max_depth;
@@ -212,7 +212,7 @@
/* Mark the object as cached */
- ACPI_MEMSET(object, 0xCA, cache->object_size);
+ memset(object, 0xCA, cache->object_size);
ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);
/* Put the object at the head of the cache list */
@@ -281,7 +281,7 @@
/* Clear (zero) the previously used Object */
- ACPI_MEMSET(object, 0, cache->object_size);
+ memset(object, 0, cache->object_size);
} else {
/* The cache is empty, create a new object */
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index c37ec50..257221d 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -129,7 +129,7 @@
/* Always clear the external object */
- ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
+ memset(external_object, 0, sizeof(union acpi_object));
/*
* In general, the external object will be the same type as
@@ -149,9 +149,9 @@
string.
length + 1);
- ACPI_MEMCPY((void *)data_space,
- (void *)internal_object->string.pointer,
- (acpi_size) internal_object->string.length + 1);
+ memcpy((void *)data_space,
+ (void *)internal_object->string.pointer,
+ (acpi_size) internal_object->string.length + 1);
break;
case ACPI_TYPE_BUFFER:
@@ -162,9 +162,9 @@
ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
length);
- ACPI_MEMCPY((void *)data_space,
- (void *)internal_object->buffer.pointer,
- internal_object->buffer.length);
+ memcpy((void *)data_space,
+ (void *)internal_object->buffer.pointer,
+ internal_object->buffer.length);
break;
case ACPI_TYPE_INTEGER:
@@ -502,9 +502,9 @@
goto error_exit;
}
- ACPI_MEMCPY(internal_object->string.pointer,
- external_object->string.pointer,
- external_object->string.length);
+ memcpy(internal_object->string.pointer,
+ external_object->string.pointer,
+ external_object->string.length);
internal_object->string.length = external_object->string.length;
break;
@@ -517,9 +517,9 @@
goto error_exit;
}
- ACPI_MEMCPY(internal_object->buffer.pointer,
- external_object->buffer.pointer,
- external_object->buffer.length);
+ memcpy(internal_object->buffer.pointer,
+ external_object->buffer.pointer,
+ external_object->buffer.length);
internal_object->buffer.length = external_object->buffer.length;
@@ -694,8 +694,8 @@
copy_size = sizeof(struct acpi_namespace_node);
}
- ACPI_MEMCPY(ACPI_CAST_PTR(char, dest_desc),
- ACPI_CAST_PTR(char, source_desc), copy_size);
+ memcpy(ACPI_CAST_PTR(char, dest_desc),
+ ACPI_CAST_PTR(char, source_desc), copy_size);
/* Restore the saved fields */
@@ -725,9 +725,9 @@
/* Copy the actual buffer data */
- ACPI_MEMCPY(dest_desc->buffer.pointer,
- source_desc->buffer.pointer,
- source_desc->buffer.length);
+ memcpy(dest_desc->buffer.pointer,
+ source_desc->buffer.pointer,
+ source_desc->buffer.length);
}
break;
@@ -747,9 +747,9 @@
/* Copy the actual string data */
- ACPI_MEMCPY(dest_desc->string.pointer,
- source_desc->string.pointer,
- (acpi_size) source_desc->string.length + 1);
+ memcpy(dest_desc->string.pointer,
+ source_desc->string.pointer,
+ (acpi_size) source_desc->string.length + 1);
}
break;
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 4f3f888..cd02693 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -111,8 +111,8 @@
* RETURN: Updated pointer to the function name
*
* DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
- * This allows compiler macros such as __func__ to be used with no
- * change to the debug output.
+ * This allows compiler macros such as __func__ to be used
+ * with no change to the debug output.
*
******************************************************************************/
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 5e8df91..a72685c 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -102,12 +102,19 @@
{"_SB_", ACPI_TYPE_DEVICE, NULL},
{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
{"_TZ_", ACPI_TYPE_DEVICE, NULL},
- {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
+ /*
+ * March, 2015:
+ * The _REV object is in the process of being deprecated, because
+ * other ACPI implementations permanently return 2. Thus, it
+ * has little or no value. Return 2 for compatibility with
+ * other ACPI implementations.
+ */
+ {"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
- {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
+ {"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
- {"_OSI", ACPI_TYPE_METHOD, (char *)1},
+ {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
#endif
/* Table terminator */
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 27431cf..7956df1e 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -1,6 +1,6 @@
/******************************************************************************
*
- * Module Name: utids - support for device Ids - HID, UID, CID
+ * Module Name: utids - support for device Ids - HID, UID, CID, SUB, CLS
*
*****************************************************************************/
@@ -111,7 +111,7 @@
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
} else {
- ACPI_STRCPY(hid->string, obj_desc->string.pointer);
+ strcpy(hid->string, obj_desc->string.pointer);
}
hid->length = length;
@@ -180,7 +180,7 @@
/* Simply copy existing string */
- ACPI_STRCPY(sub->string, obj_desc->string.pointer);
+ strcpy(sub->string, obj_desc->string.pointer);
sub->length = length;
*return_id = sub;
@@ -256,7 +256,7 @@
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
} else {
- ACPI_STRCPY(uid->string, obj_desc->string.pointer);
+ strcpy(uid->string, obj_desc->string.pointer);
}
uid->length = length;
@@ -393,8 +393,7 @@
/* Copy the String CID from the returned object */
- ACPI_STRCPY(next_id_string,
- cid_objects[i]->string.pointer);
+ strcpy(next_id_string, cid_objects[i]->string.pointer);
length = cid_objects[i]->string.length + 1;
}
@@ -416,3 +415,92 @@
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_CLS
+ *
+ * PARAMETERS: device_node - Node for the device
+ * return_id - Where the _CLS is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _CLS control method that returns PCI-defined
+ * class code of the device. The _CLS value is always a package
+ * containing PCI class information as a list of integers.
+ * The returned string has format "BBSSPP", where:
+ * BB = Base-class code
+ * SS = Sub-class code
+ * PP = Programming Interface code
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_CLS(struct acpi_namespace_node *device_node,
+ struct acpi_pnp_device_id **return_id)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object **cls_objects;
+ u32 count;
+ struct acpi_pnp_device_id *cls;
+ u32 length;
+ acpi_status status;
+ u8 class_code[3] = { 0, 0, 0 };
+
+ ACPI_FUNCTION_TRACE(ut_execute_CLS);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CLS,
+ ACPI_BTYPE_PACKAGE, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the size of the String to be returned, includes null terminator */
+
+ length = ACPI_PCICLS_STRING_SIZE;
+ cls_objects = obj_desc->package.elements;
+ count = obj_desc->package.count;
+
+ if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
+ if (count > 0
+ && cls_objects[0]->common.type == ACPI_TYPE_INTEGER) {
+ class_code[0] = (u8)cls_objects[0]->integer.value;
+ }
+ if (count > 1
+ && cls_objects[1]->common.type == ACPI_TYPE_INTEGER) {
+ class_code[1] = (u8)cls_objects[1]->integer.value;
+ }
+ if (count > 2
+ && cls_objects[2]->common.type == ACPI_TYPE_INTEGER) {
+ class_code[2] = (u8)cls_objects[2]->integer.value;
+ }
+ }
+
+ /* Allocate a buffer for the CLS */
+
+ cls =
+ ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pnp_device_id) +
+ (acpi_size) length);
+ if (!cls) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Area for the string starts after PNP_DEVICE_ID struct */
+
+ cls->string =
+ ACPI_ADD_PTR(char, cls, sizeof(struct acpi_pnp_device_id));
+
+ /* Simply copy existing string */
+
+ acpi_ex_pci_cls_to_string(cls->string, class_code);
+ cls->length = length;
+ *return_id = cls;
+
+cleanup:
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index cbb7034..71b6653 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -66,9 +66,9 @@
* Check if this is a PCI root bridge.
* ACPI 3.0+: check for a PCI Express root also.
*/
- if (!(ACPI_STRCMP(id,
- PCI_ROOT_HID_STRING)) ||
- !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
+ if (!(strcmp(id,
+ PCI_ROOT_HID_STRING)) ||
+ !(strcmp(id, PCI_EXPRESS_ROOT_HID_STRING))) {
return (TRUE);
}
@@ -97,7 +97,8 @@
if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
- ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
+ ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT) ||
+ ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT)) {
return (TRUE);
}
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 44035ab..8f3d203a 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -232,8 +232,7 @@
return (AE_NO_MEMORY);
}
- interface_info->name =
- ACPI_ALLOCATE_ZEROED(ACPI_STRLEN(interface_name) + 1);
+ interface_info->name = ACPI_ALLOCATE_ZEROED(strlen(interface_name) + 1);
if (!interface_info->name) {
ACPI_FREE(interface_info);
return (AE_NO_MEMORY);
@@ -241,7 +240,7 @@
/* Initialize new info and insert at the head of the global list */
- ACPI_STRCPY(interface_info->name, interface_name);
+ strcpy(interface_info->name, interface_name);
interface_info->flags = ACPI_OSI_DYNAMIC;
interface_info->next = acpi_gbl_supported_interfaces;
@@ -269,7 +268,7 @@
previous_interface = next_interface = acpi_gbl_supported_interfaces;
while (next_interface) {
- if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+ if (!strcmp(interface_name, next_interface->name)) {
/* Found: name is in either the static list or was added at runtime */
@@ -373,7 +372,7 @@
next_interface = acpi_gbl_supported_interfaces;
while (next_interface) {
- if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+ if (!strcmp(interface_name, next_interface->name)) {
return (next_interface);
}
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 29e4499..97898ed 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -148,7 +148,7 @@
u32 j;
if (!expected_btypes) {
- ACPI_STRCPY(buffer, "NONE");
+ strcpy(buffer, "NONE");
return;
}
@@ -161,7 +161,7 @@
/* If one of the expected types, concatenate the name of this type */
if (expected_btypes & this_rtype) {
- ACPI_STRCAT(buffer, &ut_rtype_names[i][j]);
+ strcat(buffer, &ut_rtype_names[i][j]);
j = 0; /* Use name separator from now on */
}
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 2be6bd4..b26297c 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -180,7 +180,7 @@
{
u64 number = 0;
- while (ACPI_IS_DIGIT(*string)) {
+ while (isdigit((int)*string)) {
number *= 10;
number += *(string++) - '0';
}
@@ -405,7 +405,7 @@
/* Process width */
width = -1;
- if (ACPI_IS_DIGIT(*format)) {
+ if (isdigit((int)*format)) {
format = acpi_ut_scan_number(format, &number);
width = (s32) number;
} else if (*format == '*') {
@@ -422,7 +422,7 @@
precision = -1;
if (*format == '.') {
++format;
- if (ACPI_IS_DIGIT(*format)) {
+ if (isdigit((int)*format)) {
format = acpi_ut_scan_number(format, &number);
precision = (s32) number;
} else if (*format == '*') {
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 83b6c52..8f3c883 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -79,7 +79,7 @@
/* Walk entire string, lowercasing the letters */
for (string = src_string; *string; string++) {
- *string = (char)ACPI_TOLOWER(*string);
+ *string = (char)tolower((int)*string);
}
return;
@@ -145,7 +145,7 @@
/* Walk entire string, uppercasing the letters */
for (string = src_string; *string; string++) {
- *string = (char)ACPI_TOUPPER(*string);
+ *string = (char)toupper((int)*string);
}
return;
@@ -202,7 +202,7 @@
/* Skip over any white space in the buffer */
- while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
+ while ((*string) && (isspace((int)*string) || *string == '\t')) {
string++;
}
@@ -211,7 +211,7 @@
* Base equal to ACPI_ANY_BASE means 'ToInteger operation case'.
* We need to determine if it is decimal or hexadecimal.
*/
- if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
+ if ((*string == '0') && (tolower((int)*(string + 1)) == 'x')) {
sign_of0x = 1;
base = 16;
@@ -224,7 +224,7 @@
/* Any string left? Check that '0x' is not followed by white space. */
- if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
+ if (!(*string) || isspace((int)*string) || *string == '\t') {
if (to_integer_op) {
goto error_exit;
} else {
@@ -241,7 +241,7 @@
/* Main loop: convert the string to a 32- or 64-bit integer */
while (*string) {
- if (ACPI_IS_DIGIT(*string)) {
+ if (isdigit((int)*string)) {
/* Convert ASCII 0-9 to Decimal value */
@@ -252,8 +252,8 @@
term = 1;
} else {
- this_digit = (u8)ACPI_TOUPPER(*string);
- if (ACPI_IS_XDIGIT((char)this_digit)) {
+ this_digit = (u8)toupper((int)*string);
+ if (isxdigit((int)this_digit)) {
/* Convert ASCII Hex char to value */
@@ -404,7 +404,7 @@
/* Check for printable character or hex escape */
- if (ACPI_IS_PRINT(string[i])) {
+ if (isprint((int)string[i])) {
/* This is a normal character */
acpi_os_printf("%c", (int)string[i]);
@@ -609,22 +609,22 @@
u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source)
{
- if (ACPI_STRLEN(source) >= dest_size) {
+ if (strlen(source) >= dest_size) {
return (TRUE);
}
- ACPI_STRCPY(dest, source);
+ strcpy(dest, source);
return (FALSE);
}
u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source)
{
- if ((ACPI_STRLEN(dest) + ACPI_STRLEN(source)) >= dest_size) {
+ if ((strlen(dest) + strlen(source)) >= dest_size) {
return (TRUE);
}
- ACPI_STRCAT(dest, source);
+ strcat(dest, source);
return (FALSE);
}
@@ -635,14 +635,13 @@
{
acpi_size actual_transfer_length;
- actual_transfer_length =
- ACPI_MIN(max_transfer_length, ACPI_STRLEN(source));
+ actual_transfer_length = ACPI_MIN(max_transfer_length, strlen(source));
- if ((ACPI_STRLEN(dest) + actual_transfer_length) >= dest_size) {
+ if ((strlen(dest) + actual_transfer_length) >= dest_size) {
return (TRUE);
}
- ACPI_STRNCAT(dest, source, max_transfer_length);
+ strncat(dest, source, max_transfer_length);
return (FALSE);
}
#endif
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 130dd9f..9a7dc81 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -100,7 +100,7 @@
return (AE_NO_MEMORY);
}
- ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
+ memset(cache, 0, sizeof(struct acpi_memory_list));
cache->list_name = list_name;
cache->object_size = object_size;
@@ -402,7 +402,7 @@
allocation->component = component;
allocation->line = line;
- ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME);
+ strncpy(allocation->module, module, ACPI_MAX_MODULE_NAME);
allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
if (!element) {
@@ -497,7 +497,7 @@
/* Mark the segment as deleted */
- ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
+ memset(&allocation->user_space, 0xEA, allocation->size);
status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
return (status);
@@ -595,7 +595,7 @@
while (element) {
if ((element->component & component) &&
((module == NULL)
- || (0 == ACPI_STRCMP(module, element->module)))) {
+ || (0 == strcmp(module, element->module)))) {
descriptor =
ACPI_CAST_PTR(union acpi_descriptor,
&element->user_space);
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 0929187..51cf52d 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -234,8 +234,8 @@
stats->sci_count = acpi_sci_count;
stats->gpe_count = acpi_gpe_count;
- ACPI_MEMCPY(stats->fixed_event_count, acpi_fixed_event_count,
- sizeof(acpi_fixed_event_count));
+ memcpy(stats->fixed_event_count, acpi_fixed_event_count,
+ sizeof(acpi_fixed_event_count));
/* Other counters */
@@ -322,7 +322,7 @@
/* Parameter validation */
- if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+ if (!interface_name || (strlen(interface_name) == 0)) {
return (AE_BAD_PARAMETER);
}
@@ -374,7 +374,7 @@
/* Parameter validation */
- if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+ if (!interface_name || (strlen(interface_name) == 0)) {
return (AE_BAD_PARAMETER);
}
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index 083a768..42a32a6 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -179,10 +179,12 @@
* Obtain a permanent mapping for the FACS. This is required for the
* Global Lock and the Firmware Waking Vector
*/
- status = acpi_tb_initialize_facs();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
- return_ACPI_STATUS(status);
+ if (!(flags & ACPI_NO_FACS_INIT)) {
+ status = acpi_tb_initialize_facs();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
+ return_ACPI_STATUS(status);
+ }
}
#endif /* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 1d17919..278dc4b 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -162,6 +162,15 @@
acpi_osi_setup("!Windows 2012");
return 0;
}
+#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
+static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
+{
+ printk(KERN_NOTICE PREFIX "DMI detected: %s (force ACPI _REV to 5)\n",
+ d->ident);
+ acpi_rev_override_setup(NULL);
+ return 0;
+}
+#endif
static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
{
@@ -325,6 +334,23 @@
DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
},
},
+
+#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
+ /*
+ * DELL XPS 13 (2015) switches sound between HDA and I2S
+ * depending on the ACPI _REV callback. If userspace supports
+ * I2S sufficiently (or if you do not care about sound), you
+ * can safely disable this quirk.
+ */
+ {
+ .callback = dmi_enable_rev_override,
+ .ident = "DELL XPS 13 (2015)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
+ },
+ },
+#endif
{}
};
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 787c629..4683a96 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -58,6 +58,7 @@
#else
static inline void acpi_cmos_rtc_init(void) {}
#endif
+int acpi_rev_override_setup(char *str);
extern bool acpi_force_hot_remove;
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 2161fa1..628a42c 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -18,6 +18,7 @@
#include <linux/list.h>
#include <linux/acpi.h>
#include <linux/sort.h>
+#include <linux/pmem.h>
#include <linux/io.h>
#include "nfit.h"
@@ -305,6 +306,23 @@
return true;
}
+static bool add_flush(struct acpi_nfit_desc *acpi_desc,
+ struct acpi_nfit_flush_address *flush)
+{
+ struct device *dev = acpi_desc->dev;
+ struct nfit_flush *nfit_flush = devm_kzalloc(dev, sizeof(*nfit_flush),
+ GFP_KERNEL);
+
+ if (!nfit_flush)
+ return false;
+ INIT_LIST_HEAD(&nfit_flush->list);
+ nfit_flush->flush = flush;
+ list_add_tail(&nfit_flush->list, &acpi_desc->flushes);
+ dev_dbg(dev, "%s: nfit_flush handle: %d hint_count: %d\n", __func__,
+ flush->device_handle, flush->hint_count);
+ return true;
+}
+
static void *add_table(struct acpi_nfit_desc *acpi_desc, void *table,
const void *end)
{
@@ -338,7 +356,8 @@
return err;
break;
case ACPI_NFIT_TYPE_FLUSH_ADDRESS:
- dev_dbg(dev, "%s: flush\n", __func__);
+ if (!add_flush(acpi_desc, table))
+ return err;
break;
case ACPI_NFIT_TYPE_SMBIOS:
dev_dbg(dev, "%s: smbios\n", __func__);
@@ -389,6 +408,7 @@
{
u16 dcr = __to_nfit_memdev(nfit_mem)->region_index;
struct nfit_memdev *nfit_memdev;
+ struct nfit_flush *nfit_flush;
struct nfit_dcr *nfit_dcr;
struct nfit_bdw *nfit_bdw;
struct nfit_idt *nfit_idt;
@@ -442,6 +462,14 @@
nfit_mem->idt_bdw = nfit_idt->idt;
break;
}
+
+ list_for_each_entry(nfit_flush, &acpi_desc->flushes, list) {
+ if (nfit_flush->flush->device_handle !=
+ nfit_memdev->memdev->device_handle)
+ continue;
+ nfit_mem->nfit_flush = nfit_flush;
+ break;
+ }
break;
}
@@ -978,6 +1006,24 @@
return mmio->base_offset + line_offset + table_offset + sub_line_offset;
}
+static void wmb_blk(struct nfit_blk *nfit_blk)
+{
+
+ if (nfit_blk->nvdimm_flush) {
+ /*
+ * The first wmb() is needed to 'sfence' all previous writes
+ * such that they are architecturally visible for the platform
+ * buffer flush. Note that we've already arranged for pmem
+ * writes to avoid the cache via arch_memcpy_to_pmem(). The
+ * final wmb() ensures ordering for the NVDIMM flush write.
+ */
+ wmb();
+ writeq(1, nfit_blk->nvdimm_flush);
+ wmb();
+ } else
+ wmb_pmem();
+}
+
static u64 read_blk_stat(struct nfit_blk *nfit_blk, unsigned int bw)
{
struct nfit_blk_mmio *mmio = &nfit_blk->mmio[DCR];
@@ -1012,7 +1058,10 @@
offset = to_interleave_offset(offset, mmio);
writeq(cmd, mmio->base + offset);
- /* FIXME: conditionally perform read-back if mandated by firmware */
+ wmb_blk(nfit_blk);
+
+ if (nfit_blk->dimm_flags & ND_BLK_DCR_LATCH)
+ readq(mmio->base + offset);
}
static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk,
@@ -1026,7 +1075,6 @@
base_offset = nfit_blk->bdw_offset + dpa % L1_CACHE_BYTES
+ lane * mmio->size;
- /* TODO: non-temporal access, flush hints, cache management etc... */
write_blk_ctl(nfit_blk, lane, dpa, len, rw);
while (len) {
unsigned int c;
@@ -1045,13 +1093,19 @@
}
if (rw)
- memcpy(mmio->aperture + offset, iobuf + copied, c);
+ memcpy_to_pmem(mmio->aperture + offset,
+ iobuf + copied, c);
else
- memcpy(iobuf + copied, mmio->aperture + offset, c);
+ memcpy_from_pmem(iobuf + copied,
+ mmio->aperture + offset, c);
copied += c;
len -= c;
}
+
+ if (rw)
+ wmb_blk(nfit_blk);
+
rc = read_blk_stat(nfit_blk, lane) ? -EIO : 0;
return rc;
}
@@ -1124,7 +1178,7 @@
}
static void __iomem *__nfit_spa_map(struct acpi_nfit_desc *acpi_desc,
- struct acpi_nfit_system_address *spa)
+ struct acpi_nfit_system_address *spa, enum spa_map_type type)
{
resource_size_t start = spa->address;
resource_size_t n = spa->length;
@@ -1152,8 +1206,15 @@
if (!res)
goto err_mem;
- /* TODO: cacheability based on the spa type */
- spa_map->iomem = ioremap_nocache(start, n);
+ if (type == SPA_MAP_APERTURE) {
+ /*
+ * TODO: memremap_pmem() support, but that requires cache
+ * flushing when the aperture is moved.
+ */
+ spa_map->iomem = ioremap_wc(start, n);
+ } else
+ spa_map->iomem = ioremap_nocache(start, n);
+
if (!spa_map->iomem)
goto err_map;
@@ -1171,6 +1232,7 @@
* nfit_spa_map - interleave-aware managed-mappings of acpi_nfit_system_address ranges
* @nvdimm_bus: NFIT-bus that provided the spa table entry
* @nfit_spa: spa table to map
+ * @type: aperture or control region
*
* In the case where block-data-window apertures and
* dimm-control-regions are interleaved they will end up sharing a
@@ -1180,12 +1242,12 @@
* unbound.
*/
static void __iomem *nfit_spa_map(struct acpi_nfit_desc *acpi_desc,
- struct acpi_nfit_system_address *spa)
+ struct acpi_nfit_system_address *spa, enum spa_map_type type)
{
void __iomem *iomem;
mutex_lock(&acpi_desc->spa_map_mutex);
- iomem = __nfit_spa_map(acpi_desc, spa);
+ iomem = __nfit_spa_map(acpi_desc, spa, type);
mutex_unlock(&acpi_desc->spa_map_mutex);
return iomem;
@@ -1206,12 +1268,35 @@
return 0;
}
+static int acpi_nfit_blk_get_flags(struct nvdimm_bus_descriptor *nd_desc,
+ struct nvdimm *nvdimm, struct nfit_blk *nfit_blk)
+{
+ struct nd_cmd_dimm_flags flags;
+ int rc;
+
+ memset(&flags, 0, sizeof(flags));
+ rc = nd_desc->ndctl(nd_desc, nvdimm, ND_CMD_DIMM_FLAGS, &flags,
+ sizeof(flags));
+
+ if (rc >= 0 && flags.status == 0)
+ nfit_blk->dimm_flags = flags.flags;
+ else if (rc == -ENOTTY) {
+ /* fall back to a conservative default */
+ nfit_blk->dimm_flags = ND_BLK_DCR_LATCH;
+ rc = 0;
+ } else
+ rc = -ENXIO;
+
+ return rc;
+}
+
static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
struct device *dev)
{
struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus);
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
struct nd_blk_region *ndbr = to_nd_blk_region(dev);
+ struct nfit_flush *nfit_flush;
struct nfit_blk_mmio *mmio;
struct nfit_blk *nfit_blk;
struct nfit_mem *nfit_mem;
@@ -1223,8 +1308,8 @@
if (!nfit_mem || !nfit_mem->dcr || !nfit_mem->bdw) {
dev_dbg(dev, "%s: missing%s%s%s\n", __func__,
nfit_mem ? "" : " nfit_mem",
- nfit_mem->dcr ? "" : " dcr",
- nfit_mem->bdw ? "" : " bdw");
+ (nfit_mem && nfit_mem->dcr) ? "" : " dcr",
+ (nfit_mem && nfit_mem->bdw) ? "" : " bdw");
return -ENXIO;
}
@@ -1237,7 +1322,8 @@
/* map block aperture memory */
nfit_blk->bdw_offset = nfit_mem->bdw->offset;
mmio = &nfit_blk->mmio[BDW];
- mmio->base = nfit_spa_map(acpi_desc, nfit_mem->spa_bdw);
+ mmio->base = nfit_spa_map(acpi_desc, nfit_mem->spa_bdw,
+ SPA_MAP_APERTURE);
if (!mmio->base) {
dev_dbg(dev, "%s: %s failed to map bdw\n", __func__,
nvdimm_name(nvdimm));
@@ -1259,7 +1345,8 @@
nfit_blk->cmd_offset = nfit_mem->dcr->command_offset;
nfit_blk->stat_offset = nfit_mem->dcr->status_offset;
mmio = &nfit_blk->mmio[DCR];
- mmio->base = nfit_spa_map(acpi_desc, nfit_mem->spa_dcr);
+ mmio->base = nfit_spa_map(acpi_desc, nfit_mem->spa_dcr,
+ SPA_MAP_CONTROL);
if (!mmio->base) {
dev_dbg(dev, "%s: %s failed to map dcr\n", __func__,
nvdimm_name(nvdimm));
@@ -1277,6 +1364,24 @@
return rc;
}
+ rc = acpi_nfit_blk_get_flags(nd_desc, nvdimm, nfit_blk);
+ if (rc < 0) {
+ dev_dbg(dev, "%s: %s failed get DIMM flags\n",
+ __func__, nvdimm_name(nvdimm));
+ return rc;
+ }
+
+ nfit_flush = nfit_mem->nfit_flush;
+ if (nfit_flush && nfit_flush->flush->hint_count != 0) {
+ nfit_blk->nvdimm_flush = devm_ioremap_nocache(dev,
+ nfit_flush->flush->hint_address[0], 8);
+ if (!nfit_blk->nvdimm_flush)
+ return -ENOMEM;
+ }
+
+ if (!arch_has_pmem_api() && !nfit_blk->nvdimm_flush)
+ dev_warn(dev, "unable to guarantee persistence of writes\n");
+
if (mmio->line_size == 0)
return 0;
@@ -1459,6 +1564,7 @@
INIT_LIST_HEAD(&acpi_desc->dcrs);
INIT_LIST_HEAD(&acpi_desc->bdws);
INIT_LIST_HEAD(&acpi_desc->idts);
+ INIT_LIST_HEAD(&acpi_desc->flushes);
INIT_LIST_HEAD(&acpi_desc->memdevs);
INIT_LIST_HEAD(&acpi_desc->dimms);
mutex_init(&acpi_desc->spa_map_mutex);
diff --git a/drivers/acpi/nfit.h b/drivers/acpi/nfit.h
index 81f2e8c..79b6d83 100644
--- a/drivers/acpi/nfit.h
+++ b/drivers/acpi/nfit.h
@@ -40,6 +40,10 @@
NFIT_UUID_MAX,
};
+enum {
+ ND_BLK_DCR_LATCH = 2,
+};
+
struct nfit_spa {
struct acpi_nfit_system_address *spa;
struct list_head list;
@@ -60,6 +64,11 @@
struct list_head list;
};
+struct nfit_flush {
+ struct acpi_nfit_flush_address *flush;
+ struct list_head list;
+};
+
struct nfit_memdev {
struct acpi_nfit_memory_map *memdev;
struct list_head list;
@@ -77,6 +86,7 @@
struct acpi_nfit_system_address *spa_bdw;
struct acpi_nfit_interleave *idt_dcr;
struct acpi_nfit_interleave *idt_bdw;
+ struct nfit_flush *nfit_flush;
struct list_head list;
struct acpi_device *adev;
unsigned long dsm_mask;
@@ -88,6 +98,7 @@
struct mutex spa_map_mutex;
struct list_head spa_maps;
struct list_head memdevs;
+ struct list_head flushes;
struct list_head dimms;
struct list_head spas;
struct list_head dcrs;
@@ -109,7 +120,7 @@
struct nfit_blk_mmio {
union {
void __iomem *base;
- void *aperture;
+ void __pmem *aperture;
};
u64 size;
u64 base_offset;
@@ -123,6 +134,13 @@
u64 bdw_offset; /* post interleave offset */
u64 stat_offset;
u64 cmd_offset;
+ void __iomem *nvdimm_flush;
+ u32 dimm_flags;
+};
+
+enum spa_map_type {
+ SPA_MAP_CONTROL,
+ SPA_MAP_APERTURE,
};
struct nfit_spa_mapping {
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index a5dc903..3b8963f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -175,10 +175,14 @@
if (!addr || !length)
return;
- acpi_reserve_region(addr, length, gas->space_id, 0, desc);
+ /* Resources are never freed */
+ if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+ request_region(addr, length, desc);
+ else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+ request_mem_region(addr, length, desc);
}
-static void __init acpi_reserve_resources(void)
+static int __init acpi_reserve_resources(void)
{
acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block, acpi_gbl_FADT.pm1_event_length,
"ACPI PM1a_EVT_BLK");
@@ -207,7 +211,10 @@
if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
+
+ return 0;
}
+fs_initcall_sync(acpi_reserve_resources);
void acpi_os_printf(const char *fmt, ...)
{
@@ -530,6 +537,19 @@
}
#endif
+#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
+static bool acpi_rev_override;
+
+int __init acpi_rev_override_setup(char *str)
+{
+ acpi_rev_override = true;
+ return 1;
+}
+__setup("acpi_rev_override", acpi_rev_override_setup);
+#else
+#define acpi_rev_override false
+#endif
+
#define ACPI_MAX_OVERRIDE_LEN 100
static char acpi_os_name[ACPI_MAX_OVERRIDE_LEN];
@@ -548,6 +568,11 @@
*new_val = acpi_os_name;
}
+ if (!memcmp(init_val->name, "_REV", 4) && acpi_rev_override) {
+ printk(KERN_INFO PREFIX "Overriding _REV return value to 5\n");
+ *new_val = (char *)5;
+ }
+
return AE_OK;
}
@@ -1844,7 +1869,6 @@
acpi_status __init acpi_os_initialize1(void)
{
- acpi_reserve_resources();
kacpid_wq = alloc_workqueue("kacpid", 0, 1);
kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1);
kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0);
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 10561ce..8244f01 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -26,7 +26,6 @@
#include <linux/device.h>
#include <linux/export.h>
#include <linux/ioport.h>
-#include <linux/list.h>
#include <linux/slab.h>
#ifdef CONFIG_X86
@@ -622,164 +621,3 @@
return (type & types) ? 0 : 1;
}
EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type);
-
-struct reserved_region {
- struct list_head node;
- u64 start;
- u64 end;
-};
-
-static LIST_HEAD(reserved_io_regions);
-static LIST_HEAD(reserved_mem_regions);
-
-static int request_range(u64 start, u64 end, u8 space_id, unsigned long flags,
- char *desc)
-{
- unsigned int length = end - start + 1;
- struct resource *res;
-
- res = space_id == ACPI_ADR_SPACE_SYSTEM_IO ?
- request_region(start, length, desc) :
- request_mem_region(start, length, desc);
- if (!res)
- return -EIO;
-
- res->flags &= ~flags;
- return 0;
-}
-
-static int add_region_before(u64 start, u64 end, u8 space_id,
- unsigned long flags, char *desc,
- struct list_head *head)
-{
- struct reserved_region *reg;
- int error;
-
- reg = kmalloc(sizeof(*reg), GFP_KERNEL);
- if (!reg)
- return -ENOMEM;
-
- error = request_range(start, end, space_id, flags, desc);
- if (error) {
- kfree(reg);
- return error;
- }
-
- reg->start = start;
- reg->end = end;
- list_add_tail(®->node, head);
- return 0;
-}
-
-/**
- * acpi_reserve_region - Reserve an I/O or memory region as a system resource.
- * @start: Starting address of the region.
- * @length: Length of the region.
- * @space_id: Identifier of address space to reserve the region from.
- * @flags: Resource flags to clear for the region after requesting it.
- * @desc: Region description (for messages).
- *
- * Reserve an I/O or memory region as a system resource to prevent others from
- * using it. If the new region overlaps with one of the regions (in the given
- * address space) already reserved by this routine, only the non-overlapping
- * parts of it will be reserved.
- *
- * Returned is either 0 (success) or a negative error code indicating a resource
- * reservation problem. It is the code of the first encountered error, but the
- * routine doesn't abort until it has attempted to request all of the parts of
- * the new region that don't overlap with other regions reserved previously.
- *
- * The resources requested by this routine are never released.
- */
-int acpi_reserve_region(u64 start, unsigned int length, u8 space_id,
- unsigned long flags, char *desc)
-{
- struct list_head *regions;
- struct reserved_region *reg;
- u64 end = start + length - 1;
- int ret = 0, error = 0;
-
- if (space_id == ACPI_ADR_SPACE_SYSTEM_IO)
- regions = &reserved_io_regions;
- else if (space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
- regions = &reserved_mem_regions;
- else
- return -EINVAL;
-
- if (list_empty(regions))
- return add_region_before(start, end, space_id, flags, desc, regions);
-
- list_for_each_entry(reg, regions, node)
- if (reg->start == end + 1) {
- /* The new region can be prepended to this one. */
- ret = request_range(start, end, space_id, flags, desc);
- if (!ret)
- reg->start = start;
-
- return ret;
- } else if (reg->start > end) {
- /* No overlap. Add the new region here and get out. */
- return add_region_before(start, end, space_id, flags,
- desc, ®->node);
- } else if (reg->end == start - 1) {
- goto combine;
- } else if (reg->end >= start) {
- goto overlap;
- }
-
- /* The new region goes after the last existing one. */
- return add_region_before(start, end, space_id, flags, desc, regions);
-
- overlap:
- /*
- * The new region overlaps an existing one.
- *
- * The head part of the new region immediately preceding the existing
- * overlapping one can be combined with it right away.
- */
- if (reg->start > start) {
- error = request_range(start, reg->start - 1, space_id, flags, desc);
- if (error)
- ret = error;
- else
- reg->start = start;
- }
-
- combine:
- /*
- * The new region is adjacent to an existing one. If it extends beyond
- * that region all the way to the next one, it is possible to combine
- * all three of them.
- */
- while (reg->end < end) {
- struct reserved_region *next = NULL;
- u64 a = reg->end + 1, b = end;
-
- if (!list_is_last(®->node, regions)) {
- next = list_next_entry(reg, node);
- if (next->start <= end)
- b = next->start - 1;
- }
- error = request_range(a, b, space_id, flags, desc);
- if (!error) {
- if (next && next->start == b + 1) {
- reg->end = next->end;
- list_del(&next->node);
- kfree(next);
- } else {
- reg->end = end;
- break;
- }
- } else if (next) {
- if (!ret)
- ret = error;
-
- reg = next;
- } else {
- break;
- }
- }
-
- return ret ? ret : error;
-}
-EXPORT_SYMBOL_GPL(acpi_reserve_region);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 2649a06..ec25635 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1019,6 +1019,29 @@
return false;
}
+static bool __acpi_match_device_cls(const struct acpi_device_id *id,
+ struct acpi_hardware_id *hwid)
+{
+ int i, msk, byte_shift;
+ char buf[3];
+
+ if (!id->cls)
+ return false;
+
+ /* Apply class-code bitmask, before checking each class-code byte */
+ for (i = 1; i <= 3; i++) {
+ byte_shift = 8 * (3 - i);
+ msk = (id->cls_msk >> byte_shift) & 0xFF;
+ if (!msk)
+ continue;
+
+ sprintf(buf, "%02x", (id->cls >> byte_shift) & msk);
+ if (strncmp(buf, &hwid->id[(i - 1) * 2], 2))
+ return false;
+ }
+ return true;
+}
+
static const struct acpi_device_id *__acpi_match_device(
struct acpi_device *device,
const struct acpi_device_id *ids,
@@ -1036,9 +1059,12 @@
list_for_each_entry(hwid, &device->pnp.ids, list) {
/* First, check the ACPI/PNP IDs provided by the caller. */
- for (id = ids; id->id[0]; id++)
- if (!strcmp((char *) id->id, hwid->id))
+ for (id = ids; id->id[0] || id->cls; id++) {
+ if (id->id[0] && !strcmp((char *) id->id, hwid->id))
return id;
+ else if (id->cls && __acpi_match_device_cls(id, hwid))
+ return id;
+ }
/*
* Next, check ACPI_DT_NAMESPACE_HID and try to match the
@@ -2101,6 +2127,8 @@
if (info->valid & ACPI_VALID_UID)
pnp->unique_id = kstrdup(info->unique_id.string,
GFP_KERNEL);
+ if (info->valid & ACPI_VALID_CLS)
+ acpi_add_id(pnp, info->class_code.string);
kfree(info);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 6d17a3b..15e40ee 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -48,7 +48,7 @@
config ATA_ACPI
bool "ATA ACPI Support"
- depends on ACPI && PCI
+ depends on ACPI
default y
help
This option adds support for ATA-related ACPI objects.
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 614c78f..1befb11 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -20,6 +20,8 @@
#include <linux/platform_device.h>
#include <linux/libata.h>
#include <linux/ahci_platform.h>
+#include <linux/acpi.h>
+#include <linux/pci_ids.h>
#include "ahci.h"
#define DRV_NAME "ahci"
@@ -79,12 +81,19 @@
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
+static const struct acpi_device_id ahci_acpi_match[] = {
+ { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
+
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
.driver = {
.name = DRV_NAME,
.of_match_table = ahci_of_match,
+ .acpi_match_table = ahci_acpi_match,
.pm = &ahci_pm_ops,
},
};
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 9c42883..894bda1 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -563,10 +563,8 @@
kfree(fw_priv);
}
-static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+static int do_firmware_uevent(struct firmware_priv *fw_priv, struct kobj_uevent_env *env)
{
- struct firmware_priv *fw_priv = to_firmware_priv(dev);
-
if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->buf->fw_id))
return -ENOMEM;
if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
@@ -577,6 +575,18 @@
return 0;
}
+static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct firmware_priv *fw_priv = to_firmware_priv(dev);
+ int err = 0;
+
+ mutex_lock(&fw_lock);
+ if (fw_priv->buf)
+ err = do_firmware_uevent(fw_priv, env);
+ mutex_unlock(&fw_lock);
+ return err;
+}
+
static struct class firmware_class = {
.name = "firmware",
.class_attrs = firmware_class_attrs,
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index cdd547b..0ee43c1 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -6,6 +6,7 @@
* This file is released under the GPLv2.
*/
+#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/platform_device.h>
@@ -19,6 +20,8 @@
#include <linux/suspend.h>
#include <linux/export.h>
+#define GENPD_RETRY_MAX_MS 250 /* Approximate */
+
#define GENPD_DEV_CALLBACK(genpd, type, callback, dev) \
({ \
type (*__routine)(struct device *__d); \
@@ -2131,6 +2134,7 @@
static void genpd_dev_pm_detach(struct device *dev, bool power_off)
{
struct generic_pm_domain *pd;
+ unsigned int i;
int ret = 0;
pd = pm_genpd_lookup_dev(dev);
@@ -2139,10 +2143,12 @@
dev_dbg(dev, "removing from PM domain %s\n", pd->name);
- while (1) {
+ for (i = 1; i < GENPD_RETRY_MAX_MS; i <<= 1) {
ret = pm_genpd_remove_device(pd, dev);
if (ret != -EAGAIN)
break;
+
+ mdelay(i);
cond_resched();
}
@@ -2183,6 +2189,7 @@
{
struct of_phandle_args pd_args;
struct generic_pm_domain *pd;
+ unsigned int i;
int ret;
if (!dev->of_node)
@@ -2218,10 +2225,12 @@
dev_dbg(dev, "adding to PM domain %s\n", pd->name);
- while (1) {
+ for (i = 1; i < GENPD_RETRY_MAX_MS; i <<= 1) {
ret = pm_genpd_add_device(pd, dev);
if (ret != -EAGAIN)
break;
+
+ mdelay(i);
cond_resched();
}
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
index 7470004..eb6e674 100644
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -45,14 +45,12 @@
return -EEXIST;
}
- dev->power.wakeirq = wirq;
- spin_unlock_irqrestore(&dev->power.lock, flags);
-
err = device_wakeup_attach_irq(dev, wirq);
- if (err)
- return err;
+ if (!err)
+ dev->power.wakeirq = wirq;
- return 0;
+ spin_unlock_irqrestore(&dev->power.lock, flags);
+ return err;
}
/**
@@ -105,10 +103,10 @@
return;
spin_lock_irqsave(&dev->power.lock, flags);
+ device_wakeup_detach_irq(dev);
dev->power.wakeirq = NULL;
spin_unlock_irqrestore(&dev->power.lock, flags);
- device_wakeup_detach_irq(dev);
if (wirq->dedicated_irq)
free_irq(wirq->irq, wirq);
kfree(wirq);
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 40f7160..51f15bc 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -281,32 +281,25 @@
* Attach a device wakeirq to the wakeup source so the device
* wake IRQ can be configured automatically for suspend and
* resume.
+ *
+ * Call under the device's power.lock lock.
*/
int device_wakeup_attach_irq(struct device *dev,
struct wake_irq *wakeirq)
{
struct wakeup_source *ws;
- int ret = 0;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
if (!ws) {
dev_err(dev, "forgot to call call device_init_wakeup?\n");
- ret = -EINVAL;
- goto unlock;
+ return -EINVAL;
}
- if (ws->wakeirq) {
- ret = -EEXIST;
- goto unlock;
- }
+ if (ws->wakeirq)
+ return -EEXIST;
ws->wakeirq = wakeirq;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
-
- return ret;
+ return 0;
}
/**
@@ -314,20 +307,16 @@
* @dev: Device to handle
*
* Removes a device wakeirq from the wakeup source.
+ *
+ * Call under the device's power.lock lock.
*/
void device_wakeup_detach_irq(struct device *dev)
{
struct wakeup_source *ws;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
- if (!ws)
- goto unlock;
-
- ws->wakeirq = NULL;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
+ if (ws)
+ ws->wakeirq = NULL;
}
/**
diff --git a/drivers/block/drbd/drbd_debugfs.c b/drivers/block/drbd/drbd_debugfs.c
index a6ee3d7..6b88a35 100644
--- a/drivers/block/drbd/drbd_debugfs.c
+++ b/drivers/block/drbd/drbd_debugfs.c
@@ -419,14 +419,6 @@
return 0;
}
-/* simple_positive(file->f_path.dentry) respectively debugfs_positive(),
- * but neither is "reachable" from here.
- * So we have our own inline version of it above. :-( */
-static inline int debugfs_positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
/* make sure at *open* time that the respective object won't go away. */
static int drbd_single_open(struct file *file, int (*show)(struct seq_file *, void *),
void *data, struct kref *kref,
@@ -444,7 +436,7 @@
/* serialize with d_delete() */
mutex_lock(&d_inode(parent)->i_mutex);
/* Make sure the object is still alive */
- if (debugfs_positive(file->f_path.dentry)
+ if (simple_positive(file->f_path.dentry)
&& kref_get_unless_zero(kref))
ret = 0;
mutex_unlock(&d_inode(parent)->i_mutex);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 40580dc..f7a4c9d 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -588,7 +588,7 @@
spin_lock_irq(&lo->lo_lock);
if (lo->lo_backing_file)
- p = d_path(&lo->lo_backing_file->f_path, buf, PAGE_SIZE - 1);
+ p = file_path(lo->lo_backing_file, buf, PAGE_SIZE - 1);
spin_unlock_irq(&lo->lo_lock);
if (IS_ERR_OR_NULL(p))
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 34338d7..d1d6141 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1474,6 +1474,7 @@
nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride];
nvmeq->q_depth = depth;
nvmeq->qid = qid;
+ nvmeq->cq_vector = -1;
dev->queues[qid] = nvmeq;
/* make sure queue descriptor is set before queue count, for kthread */
@@ -1726,8 +1727,10 @@
nvmeq->cq_vector = 0;
result = queue_request_irq(dev, nvmeq, nvmeq->irqname);
- if (result)
+ if (result) {
+ nvmeq->cq_vector = -1;
goto free_nvmeq;
+ }
return result;
@@ -2213,8 +2216,10 @@
dev->max_qid = nr_io_queues;
result = queue_request_irq(dev, adminq, adminq->irqname);
- if (result)
+ if (result) {
+ adminq->cq_vector = -1;
goto free_queues;
+ }
/* Free previously allocated queues that are no longer usable */
nvme_free_queues(dev, nr_io_queues + 1);
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index ec6c5c6..d94529d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -346,6 +346,7 @@
struct rbd_image_header header;
unsigned long flags; /* possibly lock protected */
struct rbd_spec *spec;
+ struct rbd_options *opts;
char *header_name;
@@ -724,34 +725,36 @@
}
/*
- * mount options
+ * (Per device) rbd map options
*/
enum {
+ Opt_queue_depth,
Opt_last_int,
/* int args above */
Opt_last_string,
/* string args above */
Opt_read_only,
Opt_read_write,
- /* Boolean args above */
- Opt_last_bool,
+ Opt_err
};
static match_table_t rbd_opts_tokens = {
+ {Opt_queue_depth, "queue_depth=%d"},
/* int args above */
/* string args above */
{Opt_read_only, "read_only"},
{Opt_read_only, "ro"}, /* Alternate spelling */
{Opt_read_write, "read_write"},
{Opt_read_write, "rw"}, /* Alternate spelling */
- /* Boolean args above */
- {-1, NULL}
+ {Opt_err, NULL}
};
struct rbd_options {
+ int queue_depth;
bool read_only;
};
+#define RBD_QUEUE_DEPTH_DEFAULT BLKDEV_MAX_RQ
#define RBD_READ_ONLY_DEFAULT false
static int parse_rbd_opts_token(char *c, void *private)
@@ -761,27 +764,27 @@
int token, intval, ret;
token = match_token(c, rbd_opts_tokens, argstr);
- if (token < 0)
- return -EINVAL;
-
if (token < Opt_last_int) {
ret = match_int(&argstr[0], &intval);
if (ret < 0) {
- pr_err("bad mount option arg (not int) "
- "at '%s'\n", c);
+ pr_err("bad mount option arg (not int) at '%s'\n", c);
return ret;
}
dout("got int token %d val %d\n", token, intval);
} else if (token > Opt_last_int && token < Opt_last_string) {
- dout("got string token %d val %s\n", token,
- argstr[0].from);
- } else if (token > Opt_last_string && token < Opt_last_bool) {
- dout("got Boolean token %d\n", token);
+ dout("got string token %d val %s\n", token, argstr[0].from);
} else {
dout("got token %d\n", token);
}
switch (token) {
+ case Opt_queue_depth:
+ if (intval < 1) {
+ pr_err("queue_depth out of range\n");
+ return -EINVAL;
+ }
+ rbd_opts->queue_depth = intval;
+ break;
case Opt_read_only:
rbd_opts->read_only = true;
break;
@@ -789,9 +792,10 @@
rbd_opts->read_only = false;
break;
default:
- rbd_assert(false);
- break;
+ /* libceph prints "bad option" msg */
+ return -EINVAL;
}
+
return 0;
}
@@ -1563,22 +1567,39 @@
/*
* Wait for an object request to complete. If interrupted, cancel the
* underlying osd request.
+ *
+ * @timeout: in jiffies, 0 means "wait forever"
*/
-static int rbd_obj_request_wait(struct rbd_obj_request *obj_request)
+static int __rbd_obj_request_wait(struct rbd_obj_request *obj_request,
+ unsigned long timeout)
{
- int ret;
+ long ret;
dout("%s %p\n", __func__, obj_request);
-
- ret = wait_for_completion_interruptible(&obj_request->completion);
- if (ret < 0) {
- dout("%s %p interrupted\n", __func__, obj_request);
+ ret = wait_for_completion_interruptible_timeout(
+ &obj_request->completion,
+ ceph_timeout_jiffies(timeout));
+ if (ret <= 0) {
+ if (ret == 0)
+ ret = -ETIMEDOUT;
rbd_obj_request_end(obj_request);
- return ret;
+ } else {
+ ret = 0;
}
- dout("%s %p done\n", __func__, obj_request);
- return 0;
+ dout("%s %p ret %d\n", __func__, obj_request, (int)ret);
+ return ret;
+}
+
+static int rbd_obj_request_wait(struct rbd_obj_request *obj_request)
+{
+ return __rbd_obj_request_wait(obj_request, 0);
+}
+
+static int rbd_obj_request_wait_timeout(struct rbd_obj_request *obj_request,
+ unsigned long timeout)
+{
+ return __rbd_obj_request_wait(obj_request, timeout);
}
static void rbd_img_request_complete(struct rbd_img_request *img_request)
@@ -2001,11 +2022,11 @@
rbd_assert(obj_request_type_valid(type));
size = strlen(object_name) + 1;
- name = kmalloc(size, GFP_KERNEL);
+ name = kmalloc(size, GFP_NOIO);
if (!name)
return NULL;
- obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_KERNEL);
+ obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_NOIO);
if (!obj_request) {
kfree(name);
return NULL;
@@ -2376,7 +2397,7 @@
}
if (opcode == CEPH_OSD_OP_DELETE)
- osd_req_op_init(osd_request, num_ops, opcode);
+ osd_req_op_init(osd_request, num_ops, opcode, 0);
else
osd_req_op_extent_init(osd_request, num_ops, opcode,
offset, length, 0, 0);
@@ -2848,7 +2869,7 @@
goto out;
stat_request->callback = rbd_img_obj_exists_callback;
- osd_req_op_init(stat_request->osd_req, 0, CEPH_OSD_OP_STAT);
+ osd_req_op_init(stat_request->osd_req, 0, CEPH_OSD_OP_STAT, 0);
osd_req_op_raw_data_in_pages(stat_request->osd_req, 0, pages, size, 0,
false, false);
rbd_osd_req_format_read(stat_request);
@@ -3122,6 +3143,7 @@
bool watch)
{
struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
+ struct ceph_options *opts = osdc->client->options;
struct rbd_obj_request *obj_request;
int ret;
@@ -3148,7 +3170,7 @@
if (ret)
goto out;
- ret = rbd_obj_request_wait(obj_request);
+ ret = rbd_obj_request_wait_timeout(obj_request, opts->mount_timeout);
if (ret)
goto out;
@@ -3750,10 +3772,9 @@
memset(&rbd_dev->tag_set, 0, sizeof(rbd_dev->tag_set));
rbd_dev->tag_set.ops = &rbd_mq_ops;
- rbd_dev->tag_set.queue_depth = BLKDEV_MAX_RQ;
+ rbd_dev->tag_set.queue_depth = rbd_dev->opts->queue_depth;
rbd_dev->tag_set.numa_node = NUMA_NO_NODE;
- rbd_dev->tag_set.flags =
- BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE;
+ rbd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_SG_MERGE;
rbd_dev->tag_set.nr_hw_queues = 1;
rbd_dev->tag_set.cmd_size = sizeof(struct work_struct);
@@ -3773,6 +3794,7 @@
/* set io sizes to object size */
segment_size = rbd_obj_bytes(&rbd_dev->header);
blk_queue_max_hw_sectors(q, segment_size / SECTOR_SIZE);
+ blk_queue_max_segments(q, segment_size / SECTOR_SIZE);
blk_queue_max_segment_size(q, segment_size);
blk_queue_io_min(q, segment_size);
blk_queue_io_opt(q, segment_size);
@@ -4044,7 +4066,8 @@
}
static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
- struct rbd_spec *spec)
+ struct rbd_spec *spec,
+ struct rbd_options *opts)
{
struct rbd_device *rbd_dev;
@@ -4058,8 +4081,9 @@
INIT_LIST_HEAD(&rbd_dev->node);
init_rwsem(&rbd_dev->header_rwsem);
- rbd_dev->spec = spec;
rbd_dev->rbd_client = rbdc;
+ rbd_dev->spec = spec;
+ rbd_dev->opts = opts;
/* Initialize the layout used for all rbd requests */
@@ -4075,6 +4099,7 @@
{
rbd_put_client(rbd_dev->rbd_client);
rbd_spec_put(rbd_dev->spec);
+ kfree(rbd_dev->opts);
kfree(rbd_dev);
}
@@ -4933,6 +4958,7 @@
goto out_mem;
rbd_opts->read_only = RBD_READ_ONLY_DEFAULT;
+ rbd_opts->queue_depth = RBD_QUEUE_DEPTH_DEFAULT;
copts = ceph_parse_options(options, mon_addrs,
mon_addrs + mon_addrs_size - 1,
@@ -4963,8 +4989,8 @@
*/
static int rbd_add_get_pool_id(struct rbd_client *rbdc, const char *pool_name)
{
+ struct ceph_options *opts = rbdc->client->options;
u64 newest_epoch;
- unsigned long timeout = rbdc->client->options->mount_timeout * HZ;
int tries = 0;
int ret;
@@ -4979,7 +5005,8 @@
if (rbdc->client->osdc.osdmap->epoch < newest_epoch) {
ceph_monc_request_next_osdmap(&rbdc->client->monc);
(void) ceph_monc_wait_osdmap(&rbdc->client->monc,
- newest_epoch, timeout);
+ newest_epoch,
+ opts->mount_timeout);
goto again;
} else {
/* the osdmap we have is new enough */
@@ -5148,7 +5175,7 @@
rbdc = __rbd_get_client(rbd_dev->rbd_client);
ret = -ENOMEM;
- parent = rbd_dev_create(rbdc, parent_spec);
+ parent = rbd_dev_create(rbdc, parent_spec, NULL);
if (!parent)
goto out_err;
@@ -5394,9 +5421,6 @@
rc = rbd_add_parse_args(buf, &ceph_opts, &rbd_opts, &spec);
if (rc < 0)
goto err_out_module;
- read_only = rbd_opts->read_only;
- kfree(rbd_opts);
- rbd_opts = NULL; /* done with this */
rbdc = rbd_get_client(ceph_opts);
if (IS_ERR(rbdc)) {
@@ -5422,11 +5446,12 @@
goto err_out_client;
}
- rbd_dev = rbd_dev_create(rbdc, spec);
+ rbd_dev = rbd_dev_create(rbdc, spec, rbd_opts);
if (!rbd_dev)
goto err_out_client;
rbdc = NULL; /* rbd_dev now owns this */
spec = NULL; /* rbd_dev now owns this */
+ rbd_opts = NULL; /* rbd_dev now owns this */
rc = rbd_dev_image_probe(rbd_dev, true);
if (rc < 0)
@@ -5434,6 +5459,7 @@
/* If we are mapping a snapshot it must be marked read-only */
+ read_only = rbd_dev->opts->read_only;
if (rbd_dev->spec->snap_id != CEPH_NOSNAP)
read_only = true;
rbd_dev->mapping.read_only = read_only;
@@ -5458,6 +5484,7 @@
rbd_put_client(rbdc);
err_out_args:
rbd_spec_put(spec);
+ kfree(rbd_opts);
err_out_module:
module_put(THIS_MODULE);
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 1e1a432..9ceb8ac 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -472,12 +472,11 @@
/* Read Verbose Config Version Info */
skb = btbcm_read_verbose_config(hdev);
- if (IS_ERR(skb))
- return PTR_ERR(skb);
-
- BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
- get_unaligned_le16(skb->data + 5));
- kfree_skb(skb);
+ if (!IS_ERR(skb)) {
+ BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
+ get_unaligned_le16(skb->data + 5));
+ kfree_skb(skb);
+ }
set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 0b4188b..c6dea3f 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -581,7 +581,7 @@
/* Query intel_iommu to see if we need the workaround. Presumably that
* was loaded first.
*/
- if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB ||
+ if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG ||
gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) &&
intel_iommu_gfx_mapped)
return 1;
diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index 152dcb3..61566bc 100644
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -116,8 +116,10 @@
h32mxclk->pmc = pmc;
clk = clk_register(NULL, &h32mxclk->hw);
- if (!clk)
+ if (!clk) {
+ kfree(h32mxclk);
return;
+ }
of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index c240045..27dfa96 100644
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -171,8 +171,10 @@
irq_set_status_flags(osc->irq, IRQ_NOAUTOEN);
ret = request_irq(osc->irq, clk_main_osc_irq_handler,
IRQF_TRIGGER_HIGH, name, osc);
- if (ret)
+ if (ret) {
+ kfree(osc);
return ERR_PTR(ret);
+ }
if (bypass)
pmc_write(pmc, AT91_CKGR_MOR,
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index f98eafe..5b3ded5 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -165,12 +165,16 @@
irq_set_status_flags(master->irq, IRQ_NOAUTOEN);
ret = request_irq(master->irq, clk_master_irq_handler,
IRQF_TRIGGER_HIGH, "clk-master", master);
- if (ret)
+ if (ret) {
+ kfree(master);
return ERR_PTR(ret);
+ }
clk = clk_register(NULL, &master->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ free_irq(master->irq, master);
kfree(master);
+ }
return clk;
}
diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c
index cbbe403..18b60f4 100644
--- a/drivers/clk/at91/clk-pll.c
+++ b/drivers/clk/at91/clk-pll.c
@@ -346,12 +346,16 @@
irq_set_status_flags(pll->irq, IRQ_NOAUTOEN);
ret = request_irq(pll->irq, clk_pll_irq_handler, IRQF_TRIGGER_HIGH,
id ? "clk-pllb" : "clk-plla", pll);
- if (ret)
+ if (ret) {
+ kfree(pll);
return ERR_PTR(ret);
+ }
clk = clk_register(NULL, &pll->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ free_irq(pll->irq, pll);
kfree(pll);
+ }
return clk;
}
diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
index a76d03f..58008b3 100644
--- a/drivers/clk/at91/clk-system.c
+++ b/drivers/clk/at91/clk-system.c
@@ -130,13 +130,17 @@
irq_set_status_flags(sys->irq, IRQ_NOAUTOEN);
ret = request_irq(sys->irq, clk_system_irq_handler,
IRQF_TRIGGER_HIGH, name, sys);
- if (ret)
+ if (ret) {
+ kfree(sys);
return ERR_PTR(ret);
+ }
}
clk = clk_register(NULL, &sys->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ free_irq(sys->irq, sys);
kfree(sys);
+ }
return clk;
}
diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c
index ae3263b..30dd697 100644
--- a/drivers/clk/at91/clk-utmi.c
+++ b/drivers/clk/at91/clk-utmi.c
@@ -118,12 +118,16 @@
irq_set_status_flags(utmi->irq, IRQ_NOAUTOEN);
ret = request_irq(utmi->irq, clk_utmi_irq_handler,
IRQF_TRIGGER_HIGH, "clk-utmi", utmi);
- if (ret)
+ if (ret) {
+ kfree(utmi);
return ERR_PTR(ret);
+ }
clk = clk_register(NULL, &utmi->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ free_irq(utmi->irq, utmi);
kfree(utmi);
+ }
return clk;
}
diff --git a/drivers/clk/bcm/clk-iproc-asiu.c b/drivers/clk/bcm/clk-iproc-asiu.c
index e19c09c..f630e1b 100644
--- a/drivers/clk/bcm/clk-iproc-asiu.c
+++ b/drivers/clk/bcm/clk-iproc-asiu.c
@@ -222,10 +222,6 @@
struct iproc_asiu_clk *asiu_clk;
const char *clk_name;
- clk_name = kzalloc(IPROC_CLK_NAME_LEN, GFP_KERNEL);
- if (WARN_ON(!clk_name))
- goto err_clk_register;
-
ret = of_property_read_string_index(node, "clock-output-names",
i, &clk_name);
if (WARN_ON(ret))
@@ -259,7 +255,7 @@
err_clk_register:
for (i = 0; i < num_clks; i++)
- kfree(asiu->clks[i].name);
+ clk_unregister(asiu->clk_data.clks[i]);
iounmap(asiu->gate_base);
err_iomap_gate:
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 46fb84b..2dda4e8 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -366,7 +366,7 @@
val = readl(pll->pll_base + ctrl->ndiv_int.offset);
ndiv_int = (val >> ctrl->ndiv_int.shift) &
bit_mask(ctrl->ndiv_int.width);
- ndiv = ndiv_int << ctrl->ndiv_int.shift;
+ ndiv = (u64)ndiv_int << ctrl->ndiv_int.shift;
if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
val = readl(pll->pll_base + ctrl->ndiv_frac.offset);
@@ -374,7 +374,8 @@
bit_mask(ctrl->ndiv_frac.width);
if (ndiv_frac != 0)
- ndiv = (ndiv_int << ctrl->ndiv_int.shift) | ndiv_frac;
+ ndiv = ((u64)ndiv_int << ctrl->ndiv_int.shift) |
+ ndiv_frac;
}
val = readl(pll->pll_base + ctrl->pdiv.offset);
@@ -655,10 +656,6 @@
memset(&init, 0, sizeof(init));
parent_name = node->name;
- clk_name = kzalloc(IPROC_CLK_NAME_LEN, GFP_KERNEL);
- if (WARN_ON(!clk_name))
- goto err_clk_register;
-
ret = of_property_read_string_index(node, "clock-output-names",
i, &clk_name);
if (WARN_ON(ret))
@@ -690,10 +687,8 @@
return;
err_clk_register:
- for (i = 0; i < num_clks; i++) {
- kfree(pll->clks[i].name);
+ for (i = 0; i < num_clks; i++)
clk_unregister(pll->clk_data.clks[i]);
- }
err_pll_register:
if (pll->asiu_base)
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index b9b12a7..3f6f7ad 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -268,7 +268,7 @@
memcpy(table, stm32f42xx_gate_map, sizeof(table));
/* only bits set in table can be used as indices */
- if (WARN_ON(secondary > 8 * sizeof(table) ||
+ if (WARN_ON(secondary >= BITS_PER_BYTE * sizeof(table) ||
0 == (table[BIT_ULL_WORD(secondary)] &
BIT_ULL_MASK(secondary))))
return -EINVAL;
diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c
index 4b9e04c..8b6523d 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -700,6 +700,22 @@
MUX(CLK_PERI_UART3_SEL, "uart3_ck_sel", uart_ck_sel_parents, 0x40c, 3, 1),
};
+static struct clk_onecell_data *mt8173_top_clk_data __initdata;
+static struct clk_onecell_data *mt8173_pll_clk_data __initdata;
+
+static void __init mtk_clk_enable_critical(void)
+{
+ if (!mt8173_top_clk_data || !mt8173_pll_clk_data)
+ return;
+
+ clk_prepare_enable(mt8173_pll_clk_data->clks[CLK_APMIXED_ARMCA15PLL]);
+ clk_prepare_enable(mt8173_pll_clk_data->clks[CLK_APMIXED_ARMCA7PLL]);
+ clk_prepare_enable(mt8173_top_clk_data->clks[CLK_TOP_MEM_SEL]);
+ clk_prepare_enable(mt8173_top_clk_data->clks[CLK_TOP_DDRPHYCFG_SEL]);
+ clk_prepare_enable(mt8173_top_clk_data->clks[CLK_TOP_CCI400_SEL]);
+ clk_prepare_enable(mt8173_top_clk_data->clks[CLK_TOP_RTC_SEL]);
+}
+
static void __init mtk_topckgen_init(struct device_node *node)
{
struct clk_onecell_data *clk_data;
@@ -712,19 +728,19 @@
return;
}
- clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
+ mt8173_top_clk_data = clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
mtk_clk_register_factors(root_clk_alias, ARRAY_SIZE(root_clk_alias), clk_data);
mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), clk_data);
mtk_clk_register_composites(top_muxes, ARRAY_SIZE(top_muxes), base,
&mt8173_clk_lock, clk_data);
- clk_prepare_enable(clk_data->clks[CLK_TOP_CCI400_SEL]);
-
r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
if (r)
pr_err("%s(): could not register clock provider: %d\n",
__func__, r);
+
+ mtk_clk_enable_critical();
}
CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt8173-topckgen", mtk_topckgen_init);
@@ -818,13 +834,13 @@
{
struct clk_onecell_data *clk_data;
- clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+ mt8173_pll_clk_data = clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
if (!clk_data)
return;
mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
- clk_prepare_enable(clk_data->clks[CLK_APMIXED_ARMCA15PLL]);
+ mtk_clk_enable_critical();
}
CLK_OF_DECLARE(mtk_apmixedsys, "mediatek,mt8173-apmixedsys",
mtk_apmixedsys_init);
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index b95d17f..92936f0 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -530,19 +530,16 @@
struct clk_rcg2 *rcg = to_clk_rcg2(hw);
struct freq_tbl f = *rcg->freq_tbl;
const struct frac_entry *frac = frac_table_pixel;
- unsigned long request, src_rate;
+ unsigned long request;
int delta = 100000;
u32 mask = BIT(rcg->hid_width) - 1;
u32 hid_div;
- int index = qcom_find_src_index(hw, rcg->parent_map, f.src);
- struct clk *parent = clk_get_parent_by_index(hw->clk, index);
for (; frac->num; frac++) {
request = (rate * frac->den) / frac->num;
- src_rate = __clk_round_rate(parent, request);
- if ((src_rate < (request - delta)) ||
- (src_rate > (request + delta)))
+ if ((parent_rate < (request - delta)) ||
+ (parent_rate > (request + delta)))
continue;
regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG,
diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index 657ca14..8dd8cce 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -190,7 +190,7 @@
init.name = name;
init.ops = &flexgen_ops;
- init.flags = CLK_IS_BASIC | flexgen_flags;
+ init.flags = CLK_IS_BASIC | CLK_GET_RATE_NOCACHE | flexgen_flags;
init.parent_names = parent_names;
init.num_parents = num_parents;
@@ -303,6 +303,8 @@
if (!rlock)
goto err;
+ spin_lock_init(rlock);
+
for (i = 0; i < clk_data->clk_num; i++) {
struct clk *clk;
const char *clk_name;
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index e94197f..d9eb2e1 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -340,7 +340,7 @@
CLKGEN_FIELD(0x30c, 0xf, 20),
CLKGEN_FIELD(0x310, 0xf, 20) },
.lockstatus_present = true,
- .lock_status = CLKGEN_FIELD(0x2A0, 0x1, 24),
+ .lock_status = CLKGEN_FIELD(0x2f0, 0x1, 24),
.powerup_polarity = 1,
.standby_polarity = 1,
.pll_ops = &st_quadfs_pll_c32_ops,
@@ -489,7 +489,7 @@
struct st_clk_quadfs_pll *pll = to_quadfs_pll(hw);
u32 npda = CLKGEN_READ(pll, npda);
- return !!npda;
+ return pll->data->powerup_polarity ? !npda : !!npda;
}
static int clk_fs660c32_vco_get_rate(unsigned long input, struct stm_fs *fs,
@@ -635,7 +635,7 @@
init.name = name;
init.ops = quadfs->pll_ops;
- init.flags = CLK_IS_BASIC;
+ init.flags = CLK_IS_BASIC | CLK_GET_RATE_NOCACHE;
init.parent_names = &parent_name;
init.num_parents = 1;
@@ -774,7 +774,7 @@
if (fs->lock)
spin_lock_irqsave(fs->lock, flags);
- CLKGEN_WRITE(fs, nsb[fs->chan], !fs->data->standby_polarity);
+ CLKGEN_WRITE(fs, nsb[fs->chan], fs->data->standby_polarity);
if (fs->lock)
spin_unlock_irqrestore(fs->lock, flags);
@@ -1082,10 +1082,6 @@
.compatible = "st,stih407-quadfs660-D",
.data = &st_fs660c32_D_407
},
- {
- .compatible = "st,stih407-quadfs660-D",
- .data = (void *)&st_fs660c32_D_407
- },
{}
};
diff --git a/drivers/clk/st/clkgen-mux.c b/drivers/clk/st/clkgen-mux.c
index 4fbe6e0..717c4a9 100644
--- a/drivers/clk/st/clkgen-mux.c
+++ b/drivers/clk/st/clkgen-mux.c
@@ -237,7 +237,7 @@
init.name = name;
init.ops = &clkgena_divmux_ops;
- init.flags = CLK_IS_BASIC;
+ init.flags = CLK_IS_BASIC | CLK_GET_RATE_NOCACHE;
init.parent_names = parent_names;
init.num_parents = num_parents;
@@ -513,7 +513,8 @@
0, &clk_name))
return;
- clk = clk_register_divider_table(NULL, clk_name, parent_name, 0,
+ clk = clk_register_divider_table(NULL, clk_name, parent_name,
+ CLK_GET_RATE_NOCACHE,
reg + data->offset, data->shift, 1,
0, data->table, NULL);
if (IS_ERR(clk))
@@ -582,7 +583,7 @@
};
static struct clkgen_mux_data stih407_a9_mux_data = {
.offset = 0x1a4,
- .shift = 1,
+ .shift = 0,
.width = 2,
};
@@ -786,7 +787,8 @@
&mux->hw, &clk_mux_ops,
&div->hw, &clk_divider_ops,
&gate->hw, &clk_gate_ops,
- data->clk_flags);
+ data->clk_flags |
+ CLK_GET_RATE_NOCACHE);
if (IS_ERR(clk)) {
kfree(gate);
kfree(div);
diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index 1065322..72d1c27 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -406,7 +406,7 @@
init.name = clk_name;
init.ops = pll_data->ops;
- init.flags = CLK_IS_BASIC;
+ init.flags = CLK_IS_BASIC | CLK_GET_RATE_NOCACHE;
init.parent_names = &parent_name;
init.num_parents = 1;
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 9a82f17..abf7b37 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -1391,6 +1391,7 @@
CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sun6i_init_clocks);
CLK_OF_DECLARE(sun6i_a31s_clk_init, "allwinner,sun6i-a31s", sun6i_init_clocks);
CLK_OF_DECLARE(sun8i_a23_clk_init, "allwinner,sun8i-a23", sun6i_init_clocks);
+CLK_OF_DECLARE(sun8i_a33_clk_init, "allwinner,sun8i-a33", sun6i_init_clocks);
static void __init sun9i_init_clocks(struct device_node *node)
{
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 879c784..2d59038 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -529,6 +529,7 @@
CLOCKSOURCE_OF_DECLARE(imx1_timer, "fsl,imx1-gpt", imx1_timer_init_dt);
CLOCKSOURCE_OF_DECLARE(imx21_timer, "fsl,imx21-gpt", imx21_timer_init_dt);
+CLOCKSOURCE_OF_DECLARE(imx27_timer, "fsl,imx27-gpt", imx21_timer_init_dt);
CLOCKSOURCE_OF_DECLARE(imx31_timer, "fsl,imx31-gpt", imx31_timer_init_dt);
CLOCKSOURCE_OF_DECLARE(imx25_timer, "fsl,imx25-gpt", imx31_timer_init_dt);
CLOCKSOURCE_OF_DECLARE(imx50_timer, "fsl,imx50-gpt", imx31_timer_init_dt);
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index fc897ba..e362860 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -3,7 +3,7 @@
*
* The 2E revision of loongson processor not support this feature.
*
- * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2006 - 2008 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* This file is subject to the terms and conditions of the GNU General Public
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 5bcd575..e6b658f 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -1034,8 +1034,8 @@
&sram_size);
cp->sram_size = sram_size;
- cp->sram_pool = of_get_named_gen_pool(pdev->dev.of_node,
- "marvell,crypto-srams", 0);
+ cp->sram_pool = of_gen_pool_get(pdev->dev.of_node,
+ "marvell,crypto-srams", 0);
if (cp->sram_pool) {
cp->sram = gen_pool_dma_alloc(cp->sram_pool, sram_size,
&cp->sram_dma);
diff --git a/drivers/crypto/nx/nx-aes-ccm.c b/drivers/crypto/nx/nx-aes-ccm.c
index 67f8081..e4311ce 100644
--- a/drivers/crypto/nx/nx-aes-ccm.c
+++ b/drivers/crypto/nx/nx-aes-ccm.c
@@ -494,8 +494,9 @@
static int ccm4309_aes_nx_encrypt(struct aead_request *req)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
struct blkcipher_desc desc;
- u8 *iv = nx_ctx->priv.ccm.iv;
+ u8 *iv = rctx->iv;
iv[0] = 3;
memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
@@ -525,8 +526,9 @@
static int ccm4309_aes_nx_decrypt(struct aead_request *req)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
struct blkcipher_desc desc;
- u8 *iv = nx_ctx->priv.ccm.iv;
+ u8 *iv = rctx->iv;
iv[0] = 3;
memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
diff --git a/drivers/crypto/nx/nx-aes-ctr.c b/drivers/crypto/nx/nx-aes-ctr.c
index 2617cd4..dd7e9f3 100644
--- a/drivers/crypto/nx/nx-aes-ctr.c
+++ b/drivers/crypto/nx/nx-aes-ctr.c
@@ -72,7 +72,7 @@
if (key_len < CTR_RFC3686_NONCE_SIZE)
return -EINVAL;
- memcpy(nx_ctx->priv.ctr.iv,
+ memcpy(nx_ctx->priv.ctr.nonce,
in_key + key_len - CTR_RFC3686_NONCE_SIZE,
CTR_RFC3686_NONCE_SIZE);
@@ -131,14 +131,15 @@
unsigned int nbytes)
{
struct nx_crypto_ctx *nx_ctx = crypto_blkcipher_ctx(desc->tfm);
- u8 *iv = nx_ctx->priv.ctr.iv;
+ u8 iv[16];
+ memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_IV_SIZE);
memcpy(iv + CTR_RFC3686_NONCE_SIZE,
desc->info, CTR_RFC3686_IV_SIZE);
iv[12] = iv[13] = iv[14] = 0;
iv[15] = 1;
- desc->info = nx_ctx->priv.ctr.iv;
+ desc->info = iv;
return ctr_aes_nx_crypt(desc, dst, src, nbytes);
}
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index 08ac6d4..92c993f 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -317,6 +317,7 @@
static int gcm_aes_nx_crypt(struct aead_request *req, int enc)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
struct blkcipher_desc desc;
unsigned int nbytes = req->cryptlen;
@@ -326,7 +327,7 @@
spin_lock_irqsave(&nx_ctx->lock, irq_flags);
- desc.info = nx_ctx->priv.gcm.iv;
+ desc.info = rctx->iv;
/* initialize the counter */
*(u32 *)(desc.info + NX_GCM_CTR_OFFSET) = 1;
@@ -424,8 +425,8 @@
static int gcm_aes_nx_encrypt(struct aead_request *req)
{
- struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
- char *iv = nx_ctx->priv.gcm.iv;
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+ char *iv = rctx->iv;
memcpy(iv, req->iv, 12);
@@ -434,8 +435,8 @@
static int gcm_aes_nx_decrypt(struct aead_request *req)
{
- struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
- char *iv = nx_ctx->priv.gcm.iv;
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+ char *iv = rctx->iv;
memcpy(iv, req->iv, 12);
@@ -445,7 +446,8 @@
static int gcm4106_aes_nx_encrypt(struct aead_request *req)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
- char *iv = nx_ctx->priv.gcm.iv;
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+ char *iv = rctx->iv;
char *nonce = nx_ctx->priv.gcm.nonce;
memcpy(iv, nonce, NX_GCM4106_NONCE_LEN);
@@ -457,7 +459,8 @@
static int gcm4106_aes_nx_decrypt(struct aead_request *req)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
- char *iv = nx_ctx->priv.gcm.iv;
+ struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+ char *iv = rctx->iv;
char *nonce = nx_ctx->priv.gcm.nonce;
memcpy(iv, nonce, NX_GCM4106_NONCE_LEN);
diff --git a/drivers/crypto/nx/nx-aes-xcbc.c b/drivers/crypto/nx/nx-aes-xcbc.c
index 8c2faff..c2f7d4b 100644
--- a/drivers/crypto/nx/nx-aes-xcbc.c
+++ b/drivers/crypto/nx/nx-aes-xcbc.c
@@ -42,6 +42,7 @@
unsigned int key_len)
{
struct nx_crypto_ctx *nx_ctx = crypto_shash_ctx(desc);
+ struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
switch (key_len) {
case AES_KEYSIZE_128:
@@ -51,7 +52,7 @@
return -EINVAL;
}
- memcpy(nx_ctx->priv.xcbc.key, in_key, key_len);
+ memcpy(csbcpb->cpb.aes_xcbc.key, in_key, key_len);
return 0;
}
@@ -148,32 +149,29 @@
return rc;
}
-static int nx_xcbc_init(struct shash_desc *desc)
+static int nx_crypto_ctx_aes_xcbc_init2(struct crypto_tfm *tfm)
{
- struct xcbc_state *sctx = shash_desc_ctx(desc);
- struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
+ struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
- struct nx_sg *out_sg;
- int len;
+ int err;
+
+ err = nx_crypto_ctx_aes_xcbc_init(tfm);
+ if (err)
+ return err;
nx_ctx_init(nx_ctx, HCOP_FC_AES);
- memset(sctx, 0, sizeof *sctx);
-
NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_128);
csbcpb->cpb.hdr.mode = NX_MODE_AES_XCBC_MAC;
- memcpy(csbcpb->cpb.aes_xcbc.key, nx_ctx->priv.xcbc.key, AES_BLOCK_SIZE);
- memset(nx_ctx->priv.xcbc.key, 0, sizeof *nx_ctx->priv.xcbc.key);
+ return 0;
+}
- len = AES_BLOCK_SIZE;
- out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
- &len, nx_ctx->ap->sglen);
+static int nx_xcbc_init(struct shash_desc *desc)
+{
+ struct xcbc_state *sctx = shash_desc_ctx(desc);
- if (len != AES_BLOCK_SIZE)
- return -EINVAL;
-
- nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+ memset(sctx, 0, sizeof *sctx);
return 0;
}
@@ -186,6 +184,7 @@
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
struct nx_sg *in_sg;
+ struct nx_sg *out_sg;
u32 to_process = 0, leftover, total;
unsigned int max_sg_len;
unsigned long irq_flags;
@@ -213,6 +212,17 @@
max_sg_len = min_t(u64, max_sg_len,
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+ data_len = AES_BLOCK_SIZE;
+ out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+ &len, nx_ctx->ap->sglen);
+
+ if (data_len != AES_BLOCK_SIZE) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
do {
to_process = total - to_process;
to_process = to_process & ~(AES_BLOCK_SIZE - 1);
@@ -235,8 +245,10 @@
(u8 *) sctx->buffer,
&data_len,
max_sg_len);
- if (data_len != sctx->count)
- return -EINVAL;
+ if (data_len != sctx->count) {
+ rc = -EINVAL;
+ goto out;
+ }
}
data_len = to_process - sctx->count;
@@ -245,8 +257,10 @@
&data_len,
max_sg_len);
- if (data_len != to_process - sctx->count)
- return -EINVAL;
+ if (data_len != to_process - sctx->count) {
+ rc = -EINVAL;
+ goto out;
+ }
nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) *
sizeof(struct nx_sg);
@@ -325,15 +339,19 @@
in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *)sctx->buffer,
&len, nx_ctx->ap->sglen);
- if (len != sctx->count)
- return -EINVAL;
+ if (len != sctx->count) {
+ rc = -EINVAL;
+ goto out;
+ }
len = AES_BLOCK_SIZE;
out_sg = nx_build_sg_list(nx_ctx->out_sg, out, &len,
nx_ctx->ap->sglen);
- if (len != AES_BLOCK_SIZE)
- return -EINVAL;
+ if (len != AES_BLOCK_SIZE) {
+ rc = -EINVAL;
+ goto out;
+ }
nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
@@ -372,7 +390,7 @@
.cra_blocksize = AES_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_ctxsize = sizeof(struct nx_crypto_ctx),
- .cra_init = nx_crypto_ctx_aes_xcbc_init,
+ .cra_init = nx_crypto_ctx_aes_xcbc_init2,
.cra_exit = nx_crypto_ctx_exit,
}
};
diff --git a/drivers/crypto/nx/nx-sha256.c b/drivers/crypto/nx/nx-sha256.c
index 4e91bdb..08f8d5c 100644
--- a/drivers/crypto/nx/nx-sha256.c
+++ b/drivers/crypto/nx/nx-sha256.c
@@ -29,34 +29,28 @@
#include "nx.h"
-static int nx_sha256_init(struct shash_desc *desc)
+static int nx_crypto_ctx_sha256_init(struct crypto_tfm *tfm)
{
- struct sha256_state *sctx = shash_desc_ctx(desc);
- struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
- struct nx_sg *out_sg;
- int len;
- u32 max_sg_len;
+ struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
+ int err;
+
+ err = nx_crypto_ctx_sha_init(tfm);
+ if (err)
+ return err;
nx_ctx_init(nx_ctx, HCOP_FC_SHA);
- memset(sctx, 0, sizeof *sctx);
-
nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA256];
NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA256);
- max_sg_len = min_t(u64, nx_ctx->ap->sglen,
- nx_driver.of.max_sg_len/sizeof(struct nx_sg));
- max_sg_len = min_t(u64, max_sg_len,
- nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+ return 0;
+}
- len = SHA256_DIGEST_SIZE;
- out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
- &len, max_sg_len);
- nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+static int nx_sha256_init(struct shash_desc *desc) {
+ struct sha256_state *sctx = shash_desc_ctx(desc);
- if (len != SHA256_DIGEST_SIZE)
- return -EINVAL;
+ memset(sctx, 0, sizeof *sctx);
sctx->state[0] = __cpu_to_be32(SHA256_H0);
sctx->state[1] = __cpu_to_be32(SHA256_H1);
@@ -78,6 +72,7 @@
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
struct nx_sg *in_sg;
+ struct nx_sg *out_sg;
u64 to_process = 0, leftover, total;
unsigned long irq_flags;
int rc = 0;
@@ -108,6 +103,16 @@
max_sg_len = min_t(u64, max_sg_len,
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+ data_len = SHA256_DIGEST_SIZE;
+ out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+ &data_len, max_sg_len);
+ nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
+ if (data_len != SHA256_DIGEST_SIZE) {
+ rc = -EINVAL;
+ goto out;
+ }
+
do {
/*
* to_process: the SHA256_BLOCK_SIZE data chunk to process in
@@ -282,7 +287,7 @@
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_ctxsize = sizeof(struct nx_crypto_ctx),
- .cra_init = nx_crypto_ctx_sha_init,
+ .cra_init = nx_crypto_ctx_sha256_init,
.cra_exit = nx_crypto_ctx_exit,
}
};
diff --git a/drivers/crypto/nx/nx-sha512.c b/drivers/crypto/nx/nx-sha512.c
index e6a58d2..aff0fe5 100644
--- a/drivers/crypto/nx/nx-sha512.c
+++ b/drivers/crypto/nx/nx-sha512.c
@@ -28,34 +28,29 @@
#include "nx.h"
-static int nx_sha512_init(struct shash_desc *desc)
+static int nx_crypto_ctx_sha512_init(struct crypto_tfm *tfm)
{
- struct sha512_state *sctx = shash_desc_ctx(desc);
- struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
- struct nx_sg *out_sg;
- int len;
- u32 max_sg_len;
+ struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
+ int err;
+
+ err = nx_crypto_ctx_sha_init(tfm);
+ if (err)
+ return err;
nx_ctx_init(nx_ctx, HCOP_FC_SHA);
- memset(sctx, 0, sizeof *sctx);
-
nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA512];
NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA512);
- max_sg_len = min_t(u64, nx_ctx->ap->sglen,
- nx_driver.of.max_sg_len/sizeof(struct nx_sg));
- max_sg_len = min_t(u64, max_sg_len,
- nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+ return 0;
+}
- len = SHA512_DIGEST_SIZE;
- out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
- &len, max_sg_len);
- nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+static int nx_sha512_init(struct shash_desc *desc)
+{
+ struct sha512_state *sctx = shash_desc_ctx(desc);
- if (len != SHA512_DIGEST_SIZE)
- return -EINVAL;
+ memset(sctx, 0, sizeof *sctx);
sctx->state[0] = __cpu_to_be64(SHA512_H0);
sctx->state[1] = __cpu_to_be64(SHA512_H1);
@@ -77,6 +72,7 @@
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
struct nx_sg *in_sg;
+ struct nx_sg *out_sg;
u64 to_process, leftover = 0, total;
unsigned long irq_flags;
int rc = 0;
@@ -107,6 +103,16 @@
max_sg_len = min_t(u64, max_sg_len,
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+ data_len = SHA512_DIGEST_SIZE;
+ out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+ &data_len, max_sg_len);
+ nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
+ if (data_len != SHA512_DIGEST_SIZE) {
+ rc = -EINVAL;
+ goto out;
+ }
+
do {
/*
* to_process: the SHA512_BLOCK_SIZE data chunk to process in
@@ -288,7 +294,7 @@
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_ctxsize = sizeof(struct nx_crypto_ctx),
- .cra_init = nx_crypto_ctx_sha_init,
+ .cra_init = nx_crypto_ctx_sha512_init,
.cra_exit = nx_crypto_ctx_exit,
}
};
diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
index f6198f2..4369713 100644
--- a/drivers/crypto/nx/nx.c
+++ b/drivers/crypto/nx/nx.c
@@ -713,12 +713,15 @@
/* entry points from the crypto tfm initializers */
int nx_crypto_ctx_aes_ccm_init(struct crypto_tfm *tfm)
{
+ crypto_aead_set_reqsize(__crypto_aead_cast(tfm),
+ sizeof(struct nx_ccm_rctx));
return nx_crypto_ctx_init(crypto_tfm_ctx(tfm), NX_FC_AES,
NX_MODE_AES_CCM);
}
int nx_crypto_ctx_aes_gcm_init(struct crypto_aead *tfm)
{
+ crypto_aead_set_reqsize(tfm, sizeof(struct nx_gcm_rctx));
return nx_crypto_ctx_init(crypto_aead_ctx(tfm), NX_FC_AES,
NX_MODE_AES_GCM);
}
diff --git a/drivers/crypto/nx/nx.h b/drivers/crypto/nx/nx.h
index de3ea87..cdff03a 100644
--- a/drivers/crypto/nx/nx.h
+++ b/drivers/crypto/nx/nx.h
@@ -2,6 +2,8 @@
#ifndef __NX_H__
#define __NX_H__
+#include <crypto/ctr.h>
+
#define NX_NAME "nx-crypto"
#define NX_STRING "IBM Power7+ Nest Accelerator Crypto Driver"
#define NX_VERSION "1.0"
@@ -91,8 +93,11 @@
#define NX_GCM4106_NONCE_LEN (4)
#define NX_GCM_CTR_OFFSET (12)
-struct nx_gcm_priv {
+struct nx_gcm_rctx {
u8 iv[16];
+};
+
+struct nx_gcm_priv {
u8 iauth_tag[16];
u8 nonce[NX_GCM4106_NONCE_LEN];
};
@@ -100,8 +105,11 @@
#define NX_CCM_AES_KEY_LEN (16)
#define NX_CCM4309_AES_KEY_LEN (19)
#define NX_CCM4309_NONCE_LEN (3)
-struct nx_ccm_priv {
+struct nx_ccm_rctx {
u8 iv[16];
+};
+
+struct nx_ccm_priv {
u8 b0[16];
u8 iauth_tag[16];
u8 oauth_tag[16];
@@ -113,7 +121,7 @@
};
struct nx_ctr_priv {
- u8 iv[16];
+ u8 nonce[CTR_RFC3686_NONCE_SIZE];
};
struct nx_crypto_ctx {
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 4630709..0a70e46 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -536,9 +536,6 @@
dmaengine_terminate_all(dd->dma_lch_in);
dmaengine_terminate_all(dd->dma_lch_out);
- dma_unmap_sg(dd->dev, dd->in_sg, dd->in_sg_len, DMA_TO_DEVICE);
- dma_unmap_sg(dd->dev, dd->out_sg, dd->out_sg_len, DMA_FROM_DEVICE);
-
return err;
}
diff --git a/drivers/edac/octeon_edac-l2c.c b/drivers/edac/octeon_edac-l2c.c
index 7e98084..afea7fc 100644
--- a/drivers/edac/octeon_edac-l2c.c
+++ b/drivers/edac/octeon_edac-l2c.c
@@ -151,7 +151,7 @@
l2c->ctl_name = "octeon_l2c_err";
- if (OCTEON_IS_MODEL(OCTEON_FAM_1_PLUS)) {
+ if (OCTEON_IS_OCTEON1PLUS()) {
union cvmx_l2t_err l2t_err;
union cvmx_l2d_err l2d_err;
diff --git a/drivers/edac/octeon_edac-lmc.c b/drivers/edac/octeon_edac-lmc.c
index bb19e07..cda6dab 100644
--- a/drivers/edac/octeon_edac-lmc.c
+++ b/drivers/edac/octeon_edac-lmc.c
@@ -234,7 +234,7 @@
layers[0].size = 1;
layers[0].is_virt_csrow = false;
- if (OCTEON_IS_MODEL(OCTEON_FAM_1_PLUS)) {
+ if (OCTEON_IS_OCTEON1PLUS()) {
union cvmx_lmcx_mem_cfg0 cfg0;
cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(0));
diff --git a/drivers/edac/octeon_edac-pc.c b/drivers/edac/octeon_edac-pc.c
index 0f83c33..2ab6cf2 100644
--- a/drivers/edac/octeon_edac-pc.c
+++ b/drivers/edac/octeon_edac-pc.c
@@ -73,7 +73,7 @@
edac_device_handle_ce(p->ed, cpu, 0, "dcache");
/* Clear the error indication */
- if (OCTEON_IS_MODEL(OCTEON_FAM_2))
+ if (OCTEON_IS_OCTEON2())
write_octeon_c0_dcacheerr(1);
else
write_octeon_c0_dcacheerr(0);
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index ca617f4..9fa8084 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -66,7 +66,6 @@
early_param("efi", parse_efi_cmdline);
struct kobject *efi_kobj;
-static struct kobject *efivars_kobj;
/*
* Let's not leave out systab information that snuck into
@@ -218,10 +217,9 @@
goto err_remove_group;
/* and the standard mountpoint for efivarfs */
- efivars_kobj = kobject_create_and_add("efivars", efi_kobj);
- if (!efivars_kobj) {
+ error = sysfs_create_mount_point(efi_kobj, "efivars");
+ if (error) {
pr_err("efivars: Subsystem registration failed.\n");
- error = -ENOMEM;
goto err_remove_group;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 22866d1..0165783 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -425,6 +425,8 @@
unsigned irq_type);
int amdgpu_fence_emit(struct amdgpu_ring *ring, void *owner,
struct amdgpu_fence **fence);
+int amdgpu_fence_recreate(struct amdgpu_ring *ring, void *owner,
+ uint64_t seq, struct amdgpu_fence **fence);
void amdgpu_fence_process(struct amdgpu_ring *ring);
int amdgpu_fence_wait_next(struct amdgpu_ring *ring);
int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
@@ -435,9 +437,6 @@
int amdgpu_fence_wait_any(struct amdgpu_device *adev,
struct amdgpu_fence **fences,
bool intr);
-long amdgpu_fence_wait_seq_timeout(struct amdgpu_device *adev,
- u64 *target_seq, bool intr,
- long timeout);
struct amdgpu_fence *amdgpu_fence_ref(struct amdgpu_fence *fence);
void amdgpu_fence_unref(struct amdgpu_fence **fence);
@@ -1622,6 +1621,7 @@
unsigned fb_version;
atomic_t handles[AMDGPU_MAX_VCE_HANDLES];
struct drm_file *filp[AMDGPU_MAX_VCE_HANDLES];
+ uint32_t img_size[AMDGPU_MAX_VCE_HANDLES];
struct delayed_work idle_work;
const struct firmware *fw; /* VCE firmware */
struct amdgpu_ring ring[AMDGPU_MAX_VCE_RINGS];
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index 36d34e0..f82a2dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -30,6 +30,7 @@
#include <drm/drmP.h>
#include "amdgpu.h"
+#include "amdgpu_trace.h"
static int amdgpu_bo_list_create(struct amdgpu_fpriv *fpriv,
struct amdgpu_bo_list **result,
@@ -124,6 +125,8 @@
gws_obj = entry->robj;
if (entry->prefered_domains == AMDGPU_GEM_DOMAIN_OA)
oa_obj = entry->robj;
+
+ trace_amdgpu_bo_list_set(list, entry->robj);
}
for (i = 0; i < list->num_entries; ++i)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index f09b2cb..d63135b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -181,8 +181,6 @@
}
p->chunks[i].chunk_id = user_chunk.chunk_id;
p->chunks[i].length_dw = user_chunk.length_dw;
- if (p->chunks[i].chunk_id == AMDGPU_CHUNK_ID_IB)
- p->num_ibs++;
size = p->chunks[i].length_dw;
cdata = (void __user *)(unsigned long)user_chunk.chunk_data;
@@ -199,7 +197,12 @@
goto out;
}
- if (p->chunks[i].chunk_id == AMDGPU_CHUNK_ID_FENCE) {
+ switch (p->chunks[i].chunk_id) {
+ case AMDGPU_CHUNK_ID_IB:
+ p->num_ibs++;
+ break;
+
+ case AMDGPU_CHUNK_ID_FENCE:
size = sizeof(struct drm_amdgpu_cs_chunk_fence);
if (p->chunks[i].length_dw * sizeof(uint32_t) >= size) {
uint32_t handle;
@@ -221,6 +224,14 @@
r = -EINVAL;
goto out;
}
+ break;
+
+ case AMDGPU_CHUNK_ID_DEPENDENCIES:
+ break;
+
+ default:
+ r = -EINVAL;
+ goto out;
}
}
@@ -445,8 +456,9 @@
for (i = 0; i < parser->nchunks; i++)
drm_free_large(parser->chunks[i].kdata);
kfree(parser->chunks);
- for (i = 0; i < parser->num_ibs; i++)
- amdgpu_ib_free(parser->adev, &parser->ibs[i]);
+ if (parser->ibs)
+ for (i = 0; i < parser->num_ibs; i++)
+ amdgpu_ib_free(parser->adev, &parser->ibs[i]);
kfree(parser->ibs);
if (parser->uf.bo)
drm_gem_object_unreference_unlocked(&parser->uf.bo->gem_base);
@@ -654,6 +666,55 @@
return 0;
}
+static int amdgpu_cs_dependencies(struct amdgpu_device *adev,
+ struct amdgpu_cs_parser *p)
+{
+ struct amdgpu_ib *ib;
+ int i, j, r;
+
+ if (!p->num_ibs)
+ return 0;
+
+ /* Add dependencies to first IB */
+ ib = &p->ibs[0];
+ for (i = 0; i < p->nchunks; ++i) {
+ struct drm_amdgpu_cs_chunk_dep *deps;
+ struct amdgpu_cs_chunk *chunk;
+ unsigned num_deps;
+
+ chunk = &p->chunks[i];
+
+ if (chunk->chunk_id != AMDGPU_CHUNK_ID_DEPENDENCIES)
+ continue;
+
+ deps = (struct drm_amdgpu_cs_chunk_dep *)chunk->kdata;
+ num_deps = chunk->length_dw * 4 /
+ sizeof(struct drm_amdgpu_cs_chunk_dep);
+
+ for (j = 0; j < num_deps; ++j) {
+ struct amdgpu_fence *fence;
+ struct amdgpu_ring *ring;
+
+ r = amdgpu_cs_get_ring(adev, deps[j].ip_type,
+ deps[j].ip_instance,
+ deps[j].ring, &ring);
+ if (r)
+ return r;
+
+ r = amdgpu_fence_recreate(ring, p->filp,
+ deps[j].handle,
+ &fence);
+ if (r)
+ return r;
+
+ amdgpu_sync_fence(&ib->sync, fence);
+ amdgpu_fence_unref(&fence);
+ }
+ }
+
+ return 0;
+}
+
int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
{
struct amdgpu_device *adev = dev->dev_private;
@@ -688,11 +749,16 @@
else
DRM_ERROR("Failed to process the buffer list %d!\n", r);
}
- } else {
+ }
+
+ if (!r) {
reserved_buffers = true;
r = amdgpu_cs_ib_fill(adev, &parser);
}
+ if (!r)
+ r = amdgpu_cs_dependencies(adev, &parser);
+
if (r) {
amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
up_read(&adev->exclusive_lock);
@@ -730,9 +796,9 @@
{
union drm_amdgpu_wait_cs *wait = data;
struct amdgpu_device *adev = dev->dev_private;
- uint64_t seq[AMDGPU_MAX_RINGS] = {0};
- struct amdgpu_ring *ring = NULL;
unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout);
+ struct amdgpu_fence *fence = NULL;
+ struct amdgpu_ring *ring = NULL;
struct amdgpu_ctx *ctx;
long r;
@@ -745,9 +811,12 @@
if (r)
return r;
- seq[ring->idx] = wait->in.handle;
+ r = amdgpu_fence_recreate(ring, filp, wait->in.handle, &fence);
+ if (r)
+ return r;
- r = amdgpu_fence_wait_seq_timeout(adev, seq, true, timeout);
+ r = fence_wait_timeout(&fence->base, true, timeout);
+ amdgpu_fence_unref(&fence);
amdgpu_ctx_put(ctx);
if (r < 0)
return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index fec487d..ba46be3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1191,7 +1191,9 @@
return -EINVAL;
}
-
+ adev->ip_block_enabled = kcalloc(adev->num_ip_blocks, sizeof(bool), GFP_KERNEL);
+ if (adev->ip_block_enabled == NULL)
+ return -ENOMEM;
if (adev->ip_blocks == NULL) {
DRM_ERROR("No IP blocks found!\n");
@@ -1575,8 +1577,7 @@
amdgpu_fence_driver_fini(adev);
amdgpu_fbdev_fini(adev);
r = amdgpu_fini(adev);
- if (adev->ip_block_enabled)
- kfree(adev->ip_block_enabled);
+ kfree(adev->ip_block_enabled);
adev->ip_block_enabled = NULL;
adev->accel_working = false;
/* free i2c buses */
@@ -2000,4 +2001,10 @@
void amdgpu_debugfs_cleanup(struct drm_minor *minor)
{
}
+#else
+static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
+{
+ return 0;
+}
+static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { }
#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 5c9918d..a7189a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -136,6 +136,38 @@
}
/**
+ * amdgpu_fence_recreate - recreate a fence from an user fence
+ *
+ * @ring: ring the fence is associated with
+ * @owner: creator of the fence
+ * @seq: user fence sequence number
+ * @fence: resulting amdgpu fence object
+ *
+ * Recreates a fence command from the user fence sequence number (all asics).
+ * Returns 0 on success, -ENOMEM on failure.
+ */
+int amdgpu_fence_recreate(struct amdgpu_ring *ring, void *owner,
+ uint64_t seq, struct amdgpu_fence **fence)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (seq > ring->fence_drv.sync_seq[ring->idx])
+ return -EINVAL;
+
+ *fence = kmalloc(sizeof(struct amdgpu_fence), GFP_KERNEL);
+ if ((*fence) == NULL)
+ return -ENOMEM;
+
+ (*fence)->seq = seq;
+ (*fence)->ring = ring;
+ (*fence)->owner = owner;
+ fence_init(&(*fence)->base, &amdgpu_fence_ops,
+ &adev->fence_queue.lock, adev->fence_context + ring->idx,
+ (*fence)->seq);
+ return 0;
+}
+
+/**
* amdgpu_fence_check_signaled - callback from fence_queue
*
* this function is called with fence_queue lock held, which is also used
@@ -517,12 +549,14 @@
* the wait timeout, or an error for all other cases.
* -EDEADLK is returned when a GPU lockup has been detected.
*/
-long amdgpu_fence_wait_seq_timeout(struct amdgpu_device *adev, u64 *target_seq,
- bool intr, long timeout)
+static long amdgpu_fence_wait_seq_timeout(struct amdgpu_device *adev,
+ u64 *target_seq, bool intr,
+ long timeout)
{
uint64_t last_seq[AMDGPU_MAX_RINGS];
bool signaled;
- int i, r;
+ int i;
+ long r;
if (timeout == 0) {
return amdgpu_fence_any_seq_signaled(adev, target_seq);
@@ -1023,7 +1057,7 @@
amdgpu_fence_process(ring);
- seq_printf(m, "--- ring %d ---\n", i);
+ seq_printf(m, "--- ring %d (%s) ---\n", i, ring->name);
seq_printf(m, "Last signaled fence 0x%016llx\n",
(unsigned long long)atomic64_read(&ring->fence_drv.last_seq));
seq_printf(m, "Last emitted 0x%016llx\n",
@@ -1031,7 +1065,8 @@
for (j = 0; j < AMDGPU_MAX_RINGS; ++j) {
struct amdgpu_ring *other = adev->rings[j];
- if (i != j && other && other->fence_drv.initialized)
+ if (i != j && other && other->fence_drv.initialized &&
+ ring->fence_drv.sync_seq[j])
seq_printf(m, "Last sync to ring %d 0x%016llx\n",
j, ring->fence_drv.sync_seq[j]);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 0ec2222..ae43b58 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -352,7 +352,7 @@
if (((int64_t)timeout_ns) < 0)
return MAX_SCHEDULE_TIMEOUT;
- timeout = ktime_sub_ns(ktime_get(), timeout_ns);
+ timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get());
if (ktime_to_ns(timeout) < 0)
return 0;
@@ -496,7 +496,7 @@
error_free:
drm_free_large(vm_bos);
- if (r)
+ if (r && r != -ERESTARTSYS)
DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
}
@@ -525,8 +525,8 @@
return -EINVAL;
}
- invalid_flags = ~(AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
- AMDGPU_VM_PAGE_EXECUTABLE);
+ invalid_flags = ~(AMDGPU_VM_DELAY_UPDATE | AMDGPU_VM_PAGE_READABLE |
+ AMDGPU_VM_PAGE_WRITEABLE | AMDGPU_VM_PAGE_EXECUTABLE);
if ((args->flags & invalid_flags)) {
dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
args->flags, invalid_flags);
@@ -579,7 +579,7 @@
break;
}
- if (!r)
+ if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE))
amdgpu_gem_va_update_vm(adev, bo_va);
drm_gem_object_unreference_unlocked(gobj);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index b56dd64..961d726 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -30,19 +30,21 @@
TP_PROTO(struct amdgpu_cs_parser *p, int i),
TP_ARGS(p, i),
TP_STRUCT__entry(
+ __field(struct amdgpu_bo_list *, bo_list)
__field(u32, ring)
__field(u32, dw)
__field(u32, fences)
),
TP_fast_assign(
+ __entry->bo_list = p->bo_list;
__entry->ring = p->ibs[i].ring->idx;
__entry->dw = p->ibs[i].length_dw;
__entry->fences = amdgpu_fence_count_emitted(
p->ibs[i].ring);
),
- TP_printk("ring=%u, dw=%u, fences=%u",
- __entry->ring, __entry->dw,
+ TP_printk("bo_list=%p, ring=%u, dw=%u, fences=%u",
+ __entry->bo_list, __entry->ring, __entry->dw,
__entry->fences)
);
@@ -61,6 +63,54 @@
TP_printk("vmid=%u, ring=%u", __entry->vmid, __entry->ring)
);
+TRACE_EVENT(amdgpu_vm_bo_map,
+ TP_PROTO(struct amdgpu_bo_va *bo_va,
+ struct amdgpu_bo_va_mapping *mapping),
+ TP_ARGS(bo_va, mapping),
+ TP_STRUCT__entry(
+ __field(struct amdgpu_bo *, bo)
+ __field(long, start)
+ __field(long, last)
+ __field(u64, offset)
+ __field(u32, flags)
+ ),
+
+ TP_fast_assign(
+ __entry->bo = bo_va->bo;
+ __entry->start = mapping->it.start;
+ __entry->last = mapping->it.last;
+ __entry->offset = mapping->offset;
+ __entry->flags = mapping->flags;
+ ),
+ TP_printk("bo=%p, start=%lx, last=%lx, offset=%010llx, flags=%08x",
+ __entry->bo, __entry->start, __entry->last,
+ __entry->offset, __entry->flags)
+);
+
+TRACE_EVENT(amdgpu_vm_bo_unmap,
+ TP_PROTO(struct amdgpu_bo_va *bo_va,
+ struct amdgpu_bo_va_mapping *mapping),
+ TP_ARGS(bo_va, mapping),
+ TP_STRUCT__entry(
+ __field(struct amdgpu_bo *, bo)
+ __field(long, start)
+ __field(long, last)
+ __field(u64, offset)
+ __field(u32, flags)
+ ),
+
+ TP_fast_assign(
+ __entry->bo = bo_va->bo;
+ __entry->start = mapping->it.start;
+ __entry->last = mapping->it.last;
+ __entry->offset = mapping->offset;
+ __entry->flags = mapping->flags;
+ ),
+ TP_printk("bo=%p, start=%lx, last=%lx, offset=%010llx, flags=%08x",
+ __entry->bo, __entry->start, __entry->last,
+ __entry->offset, __entry->flags)
+);
+
TRACE_EVENT(amdgpu_vm_bo_update,
TP_PROTO(struct amdgpu_bo_va_mapping *mapping),
TP_ARGS(mapping),
@@ -121,6 +171,21 @@
__entry->pd_addr, __entry->ring, __entry->id)
);
+TRACE_EVENT(amdgpu_bo_list_set,
+ TP_PROTO(struct amdgpu_bo_list *list, struct amdgpu_bo *bo),
+ TP_ARGS(list, bo),
+ TP_STRUCT__entry(
+ __field(struct amdgpu_bo_list *, list)
+ __field(struct amdgpu_bo *, bo)
+ ),
+
+ TP_fast_assign(
+ __entry->list = list;
+ __entry->bo = bo;
+ ),
+ TP_printk("list=%p, bo=%p", __entry->list, __entry->bo)
+);
+
DECLARE_EVENT_CLASS(amdgpu_fence_request,
TP_PROTO(struct drm_device *dev, int ring, u32 seqno),
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index d3706a4..dd3415d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -674,7 +674,7 @@
return 0;
if (gtt && gtt->userptr) {
- ttm->sg = kcalloc(1, sizeof(struct sg_table), GFP_KERNEL);
+ ttm->sg = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
if (!ttm->sg)
return -ENOMEM;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index 1127a50..d3ca730 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -464,28 +464,42 @@
* @p: parser context
* @lo: address of lower dword
* @hi: address of higher dword
+ * @size: minimum size
*
* Patch relocation inside command stream with real buffer address
*/
-int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx, int lo, int hi)
+static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx,
+ int lo, int hi, unsigned size, uint32_t index)
{
struct amdgpu_bo_va_mapping *mapping;
struct amdgpu_ib *ib = &p->ibs[ib_idx];
struct amdgpu_bo *bo;
uint64_t addr;
+ if (index == 0xffffffff)
+ index = 0;
+
addr = ((uint64_t)amdgpu_get_ib_value(p, ib_idx, lo)) |
((uint64_t)amdgpu_get_ib_value(p, ib_idx, hi)) << 32;
+ addr += ((uint64_t)size) * ((uint64_t)index);
mapping = amdgpu_cs_find_mapping(p, addr, &bo);
if (mapping == NULL) {
- DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d\n",
+ DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n",
+ addr, lo, hi, size, index);
+ return -EINVAL;
+ }
+
+ if ((addr + (uint64_t)size) >
+ ((uint64_t)mapping->it.last + 1) * AMDGPU_GPU_PAGE_SIZE) {
+ DRM_ERROR("BO to small for addr 0x%010Lx %d %d\n",
addr, lo, hi);
return -EINVAL;
}
addr -= ((uint64_t)mapping->it.start) * AMDGPU_GPU_PAGE_SIZE;
addr += amdgpu_bo_gpu_offset(bo);
+ addr -= ((uint64_t)size) * ((uint64_t)index);
ib->ptr[lo] = addr & 0xFFFFFFFF;
ib->ptr[hi] = addr >> 32;
@@ -494,6 +508,48 @@
}
/**
+ * amdgpu_vce_validate_handle - validate stream handle
+ *
+ * @p: parser context
+ * @handle: handle to validate
+ * @allocated: allocated a new handle?
+ *
+ * Validates the handle and return the found session index or -EINVAL
+ * we we don't have another free session index.
+ */
+static int amdgpu_vce_validate_handle(struct amdgpu_cs_parser *p,
+ uint32_t handle, bool *allocated)
+{
+ unsigned i;
+
+ *allocated = false;
+
+ /* validate the handle */
+ for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
+ if (atomic_read(&p->adev->vce.handles[i]) == handle) {
+ if (p->adev->vce.filp[i] != p->filp) {
+ DRM_ERROR("VCE handle collision detected!\n");
+ return -EINVAL;
+ }
+ return i;
+ }
+ }
+
+ /* handle not found try to alloc a new one */
+ for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
+ if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
+ p->adev->vce.filp[i] = p->filp;
+ p->adev->vce.img_size[i] = 0;
+ *allocated = true;
+ return i;
+ }
+ }
+
+ DRM_ERROR("No more free VCE handles!\n");
+ return -EINVAL;
+}
+
+/**
* amdgpu_vce_cs_parse - parse and validate the command stream
*
* @p: parser context
@@ -501,10 +557,15 @@
*/
int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
{
- uint32_t handle = 0;
- bool destroy = false;
- int i, r, idx = 0;
struct amdgpu_ib *ib = &p->ibs[ib_idx];
+ unsigned fb_idx = 0, bs_idx = 0;
+ int session_idx = -1;
+ bool destroyed = false;
+ bool created = false;
+ bool allocated = false;
+ uint32_t tmp, handle = 0;
+ uint32_t *size = &tmp;
+ int i, r = 0, idx = 0;
amdgpu_vce_note_usage(p->adev);
@@ -514,16 +575,44 @@
if ((len < 8) || (len & 3)) {
DRM_ERROR("invalid VCE command length (%d)!\n", len);
- return -EINVAL;
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (destroyed) {
+ DRM_ERROR("No other command allowed after destroy!\n");
+ r = -EINVAL;
+ goto out;
}
switch (cmd) {
case 0x00000001: // session
handle = amdgpu_get_ib_value(p, ib_idx, idx + 2);
+ session_idx = amdgpu_vce_validate_handle(p, handle,
+ &allocated);
+ if (session_idx < 0)
+ return session_idx;
+ size = &p->adev->vce.img_size[session_idx];
break;
case 0x00000002: // task info
+ fb_idx = amdgpu_get_ib_value(p, ib_idx, idx + 6);
+ bs_idx = amdgpu_get_ib_value(p, ib_idx, idx + 7);
+ break;
+
case 0x01000001: // create
+ created = true;
+ if (!allocated) {
+ DRM_ERROR("Handle already in use!\n");
+ r = -EINVAL;
+ goto out;
+ }
+
+ *size = amdgpu_get_ib_value(p, ib_idx, idx + 8) *
+ amdgpu_get_ib_value(p, ib_idx, idx + 10) *
+ 8 * 3 / 2;
+ break;
+
case 0x04000001: // config extension
case 0x04000002: // pic control
case 0x04000005: // rate control
@@ -534,60 +623,74 @@
break;
case 0x03000001: // encode
- r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 10, idx + 9);
+ r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 10, idx + 9,
+ *size, 0);
if (r)
- return r;
+ goto out;
- r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 12, idx + 11);
+ r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 12, idx + 11,
+ *size / 3, 0);
if (r)
- return r;
+ goto out;
break;
case 0x02000001: // destroy
- destroy = true;
+ destroyed = true;
break;
case 0x05000001: // context buffer
- case 0x05000004: // video bitstream buffer
- case 0x05000005: // feedback buffer
- r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2);
+ r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
+ *size * 2, 0);
if (r)
- return r;
+ goto out;
+ break;
+
+ case 0x05000004: // video bitstream buffer
+ tmp = amdgpu_get_ib_value(p, ib_idx, idx + 4);
+ r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
+ tmp, bs_idx);
+ if (r)
+ goto out;
+ break;
+
+ case 0x05000005: // feedback buffer
+ r = amdgpu_vce_cs_reloc(p, ib_idx, idx + 3, idx + 2,
+ 4096, fb_idx);
+ if (r)
+ goto out;
break;
default:
DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
- return -EINVAL;
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (session_idx == -1) {
+ DRM_ERROR("no session command at start of IB\n");
+ r = -EINVAL;
+ goto out;
}
idx += len / 4;
}
- if (destroy) {
- /* IB contains a destroy msg, free the handle */
+ if (allocated && !created) {
+ DRM_ERROR("New session without create command!\n");
+ r = -ENOENT;
+ }
+
+out:
+ if ((!r && destroyed) || (r && allocated)) {
+ /*
+ * IB contains a destroy msg or we have allocated an
+ * handle and got an error, anyway free the handle
+ */
for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i)
atomic_cmpxchg(&p->adev->vce.handles[i], handle, 0);
-
- return 0;
}
- /* create or encode, validate the handle */
- for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
- if (atomic_read(&p->adev->vce.handles[i]) == handle)
- return 0;
- }
-
- /* handle not found try to alloc a new one */
- for (i = 0; i < AMDGPU_MAX_VCE_HANDLES; ++i) {
- if (!atomic_cmpxchg(&p->adev->vce.handles[i], 0, handle)) {
- p->adev->vce.filp[i] = p->filp;
- return 0;
- }
- }
-
- DRM_ERROR("No more free VCE handles!\n");
-
- return -EINVAL;
+ return r;
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
index b6a9d09..7ccdb59 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
@@ -33,7 +33,6 @@
int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
struct amdgpu_fence **fence);
void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp);
-int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx, int lo, int hi);
int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx);
bool amdgpu_vce_ring_emit_semaphore(struct amdgpu_ring *ring,
struct amdgpu_semaphore *semaphore,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 407882b..9a4e3b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1001,6 +1001,7 @@
list_add(&mapping->list, &bo_va->mappings);
interval_tree_insert(&mapping->it, &vm->va);
+ trace_amdgpu_vm_bo_map(bo_va, mapping);
bo_va->addr = 0;
@@ -1058,6 +1059,7 @@
mutex_lock(&vm->mutex);
list_del(&mapping->list);
interval_tree_remove(&mapping->it, &vm->va);
+ trace_amdgpu_vm_bo_unmap(bo_va, mapping);
kfree(mapping);
error_unlock:
@@ -1099,6 +1101,7 @@
mutex_lock(&vm->mutex);
list_del(&mapping->list);
interval_tree_remove(&mapping->it, &vm->va);
+ trace_amdgpu_vm_bo_unmap(bo_va, mapping);
if (bo_va->addr) {
/* clear the old address */
@@ -1139,6 +1142,7 @@
list_for_each_entry_safe(mapping, next, &bo_va->mappings, list) {
list_del(&mapping->list);
interval_tree_remove(&mapping->it, &vm->va);
+ trace_amdgpu_vm_bo_unmap(bo_va, mapping);
if (bo_va->addr)
list_add(&mapping->list, &vm->freed);
else
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 5dab578..341c566 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -2256,10 +2256,6 @@
return -EINVAL;
}
- adev->ip_block_enabled = kcalloc(adev->num_ip_blocks, sizeof(bool), GFP_KERNEL);
- if (adev->ip_block_enabled == NULL)
- return -ENOMEM;
-
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/cikd.h b/drivers/gpu/drm/amd/amdgpu/cikd.h
index 220865a..d19085a 100644
--- a/drivers/gpu/drm/amd/amdgpu/cikd.h
+++ b/drivers/gpu/drm/amd/amdgpu/cikd.h
@@ -552,4 +552,10 @@
#define VCE_CMD_IB_AUTO 0x00000005
#define VCE_CMD_SEMAPHORE 0x00000006
+/* valid for both DEFAULT_MTYPE and APE1_MTYPE */
+enum {
+ MTYPE_CACHED = 0,
+ MTYPE_NONCACHED = 3
+};
+
#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
index e4936a4..f75a31d 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
@@ -425,7 +425,7 @@
pi->mgcg_cgtt_local1 = 0x0;
pi->clock_slow_down_step = 25000;
pi->skip_clock_slow_down = 1;
- pi->enable_nb_ps_policy = 1;
+ pi->enable_nb_ps_policy = 0;
pi->caps_power_containment = true;
pi->caps_cac = true;
pi->didt_enabled = false;
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.h b/drivers/gpu/drm/amd/amdgpu/cz_dpm.h
index 782a741..99e1afc 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.h
+++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.h
@@ -46,7 +46,7 @@
/* Do not change the following, it is also defined in SMU8.h */
#define SMU_EnabledFeatureScoreboard_AcpDpmOn 0x00000001
-#define SMU_EnabledFeatureScoreboard_SclkDpmOn 0x00100000
+#define SMU_EnabledFeatureScoreboard_SclkDpmOn 0x00200000
#define SMU_EnabledFeatureScoreboard_UvdDpmOn 0x00800000
#define SMU_EnabledFeatureScoreboard_VceDpmOn 0x01000000
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
index 5cde635..6e77964 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
@@ -3403,19 +3403,25 @@
switch (entry->src_data) {
case 0: /* vblank */
- if (disp_int & interrupt_status_offsets[crtc].vblank) {
+ if (disp_int & interrupt_status_offsets[crtc].vblank)
dce_v10_0_crtc_vblank_int_ack(adev, crtc);
- if (amdgpu_irq_enabled(adev, source, irq_type)) {
- drm_handle_vblank(adev->ddev, crtc);
- }
- DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (amdgpu_irq_enabled(adev, source, irq_type)) {
+ drm_handle_vblank(adev->ddev, crtc);
}
+ DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+
break;
case 1: /* vline */
- if (disp_int & interrupt_status_offsets[crtc].vline) {
+ if (disp_int & interrupt_status_offsets[crtc].vline)
dce_v10_0_crtc_vline_int_ack(adev, crtc);
- DRM_DEBUG("IH: D%d vline\n", crtc + 1);
- }
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ DRM_DEBUG("IH: D%d vline\n", crtc + 1);
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data);
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 95efd98..7f7abb0 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -3402,19 +3402,25 @@
switch (entry->src_data) {
case 0: /* vblank */
- if (disp_int & interrupt_status_offsets[crtc].vblank) {
+ if (disp_int & interrupt_status_offsets[crtc].vblank)
dce_v11_0_crtc_vblank_int_ack(adev, crtc);
- if (amdgpu_irq_enabled(adev, source, irq_type)) {
- drm_handle_vblank(adev->ddev, crtc);
- }
- DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (amdgpu_irq_enabled(adev, source, irq_type)) {
+ drm_handle_vblank(adev->ddev, crtc);
}
+ DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+
break;
case 1: /* vline */
- if (disp_int & interrupt_status_offsets[crtc].vline) {
+ if (disp_int & interrupt_status_offsets[crtc].vline)
dce_v11_0_crtc_vline_int_ack(adev, crtc);
- DRM_DEBUG("IH: D%d vline\n", crtc + 1);
- }
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ DRM_DEBUG("IH: D%d vline\n", crtc + 1);
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data);
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index 72c27ac..08387df 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -3237,19 +3237,25 @@
switch (entry->src_data) {
case 0: /* vblank */
- if (disp_int & interrupt_status_offsets[crtc].vblank) {
+ if (disp_int & interrupt_status_offsets[crtc].vblank)
WREG32(mmLB_VBLANK_STATUS + crtc_offsets[crtc], LB_VBLANK_STATUS__VBLANK_ACK_MASK);
- if (amdgpu_irq_enabled(adev, source, irq_type)) {
- drm_handle_vblank(adev->ddev, crtc);
- }
- DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (amdgpu_irq_enabled(adev, source, irq_type)) {
+ drm_handle_vblank(adev->ddev, crtc);
}
+ DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
+
break;
case 1: /* vline */
- if (disp_int & interrupt_status_offsets[crtc].vline) {
+ if (disp_int & interrupt_status_offsets[crtc].vline)
WREG32(mmLB_VLINE_STATUS + crtc_offsets[crtc], LB_VLINE_STATUS__VLINE_ACK_MASK);
- DRM_DEBUG("IH: D%d vline\n", crtc + 1);
- }
+ else
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ DRM_DEBUG("IH: D%d vline\n", crtc + 1);
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data);
@@ -3379,7 +3385,7 @@
uint32_t disp_int, mask, int_control, tmp;
unsigned hpd;
- if (entry->src_data > 6) {
+ if (entry->src_data >= adev->mode_info.num_hpd) {
DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data);
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index cb790744..2c188fb 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -2010,6 +2010,46 @@
}
/**
+ * gmc_v7_0_init_compute_vmid - gart enable
+ *
+ * @rdev: amdgpu_device pointer
+ *
+ * Initialize compute vmid sh_mem registers
+ *
+ */
+#define DEFAULT_SH_MEM_BASES (0x6000)
+#define FIRST_COMPUTE_VMID (8)
+#define LAST_COMPUTE_VMID (16)
+static void gmc_v7_0_init_compute_vmid(struct amdgpu_device *adev)
+{
+ int i;
+ uint32_t sh_mem_config;
+ uint32_t sh_mem_bases;
+
+ /*
+ * Configure apertures:
+ * LDS: 0x60000000'00000000 - 0x60000001'00000000 (4GB)
+ * Scratch: 0x60000001'00000000 - 0x60000002'00000000 (4GB)
+ * GPUVM: 0x60010000'00000000 - 0x60020000'00000000 (1TB)
+ */
+ sh_mem_bases = DEFAULT_SH_MEM_BASES | (DEFAULT_SH_MEM_BASES << 16);
+ sh_mem_config = SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+ SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
+ sh_mem_config |= MTYPE_NONCACHED << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT;
+ mutex_lock(&adev->srbm_mutex);
+ for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) {
+ cik_srbm_select(adev, 0, 0, 0, i);
+ /* CP and shaders */
+ WREG32(mmSH_MEM_CONFIG, sh_mem_config);
+ WREG32(mmSH_MEM_APE1_BASE, 1);
+ WREG32(mmSH_MEM_APE1_LIMIT, 0);
+ WREG32(mmSH_MEM_BASES, sh_mem_bases);
+ }
+ cik_srbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
+}
+
+/**
* gfx_v7_0_gpu_init - setup the 3D engine
*
* @adev: amdgpu_device pointer
@@ -2230,6 +2270,8 @@
cik_srbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
+ gmc_v7_0_init_compute_vmid(adev);
+
WREG32(mmSX_DEBUG_1, 0x20);
WREG32(mmTA_CNTL_AUX, 0x00010000);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 14242bd..7b683fb 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1894,6 +1894,51 @@
mutex_unlock(&adev->grbm_idx_mutex);
}
+/**
+ * gmc_v8_0_init_compute_vmid - gart enable
+ *
+ * @rdev: amdgpu_device pointer
+ *
+ * Initialize compute vmid sh_mem registers
+ *
+ */
+#define DEFAULT_SH_MEM_BASES (0x6000)
+#define FIRST_COMPUTE_VMID (8)
+#define LAST_COMPUTE_VMID (16)
+static void gmc_v8_0_init_compute_vmid(struct amdgpu_device *adev)
+{
+ int i;
+ uint32_t sh_mem_config;
+ uint32_t sh_mem_bases;
+
+ /*
+ * Configure apertures:
+ * LDS: 0x60000000'00000000 - 0x60000001'00000000 (4GB)
+ * Scratch: 0x60000001'00000000 - 0x60000002'00000000 (4GB)
+ * GPUVM: 0x60010000'00000000 - 0x60020000'00000000 (1TB)
+ */
+ sh_mem_bases = DEFAULT_SH_MEM_BASES | (DEFAULT_SH_MEM_BASES << 16);
+
+ sh_mem_config = SH_MEM_ADDRESS_MODE_HSA64 <<
+ SH_MEM_CONFIG__ADDRESS_MODE__SHIFT |
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+ SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
+ MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
+ SH_MEM_CONFIG__PRIVATE_ATC_MASK;
+
+ mutex_lock(&adev->srbm_mutex);
+ for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) {
+ vi_srbm_select(adev, 0, 0, 0, i);
+ /* CP and shaders */
+ WREG32(mmSH_MEM_CONFIG, sh_mem_config);
+ WREG32(mmSH_MEM_APE1_BASE, 1);
+ WREG32(mmSH_MEM_APE1_LIMIT, 0);
+ WREG32(mmSH_MEM_BASES, sh_mem_bases);
+ }
+ vi_srbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
+}
+
static void gfx_v8_0_gpu_init(struct amdgpu_device *adev)
{
u32 gb_addr_config;
@@ -2113,6 +2158,8 @@
vi_srbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
+ gmc_v8_0_init_compute_vmid(adev);
+
mutex_lock(&adev->grbm_idx_mutex);
/*
* making sure that the following register writes will be broadcasted
@@ -3081,7 +3128,7 @@
WREG32(mmCP_MEC_DOORBELL_RANGE_LOWER,
AMDGPU_DOORBELL_KIQ << 2);
WREG32(mmCP_MEC_DOORBELL_RANGE_UPPER,
- AMDGPU_DOORBELL_MEC_RING7 << 2);
+ 0x7FFFF << 2);
}
tmp = RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
@@ -3097,6 +3144,12 @@
WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL,
mqd->cp_hqd_pq_doorbell_control);
+ /* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
+ ring->wptr = 0;
+ mqd->cp_hqd_pq_wptr = ring->wptr;
+ WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
+ mqd->cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+
/* set the vmid for the queue */
mqd->cp_hqd_vmid = 0;
WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index e3c1fde..7bb37b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -439,6 +439,31 @@
}
/**
+ * sdma_v3_0_ctx_switch_enable - stop the async dma engines context switch
+ *
+ * @adev: amdgpu_device pointer
+ * @enable: enable/disable the DMA MEs context switch.
+ *
+ * Halt or unhalt the async dma engines context switch (VI).
+ */
+static void sdma_v3_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
+{
+ u32 f32_cntl;
+ int i;
+
+ for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
+ f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]);
+ if (enable)
+ f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
+ AUTO_CTXSW_ENABLE, 1);
+ else
+ f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
+ AUTO_CTXSW_ENABLE, 0);
+ WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl);
+ }
+}
+
+/**
* sdma_v3_0_enable - stop the async dma engines
*
* @adev: amdgpu_device pointer
@@ -648,6 +673,8 @@
/* unhalt the MEs */
sdma_v3_0_enable(adev, true);
+ /* enable sdma ring preemption */
+ sdma_v3_0_ctx_switch_enable(adev, true);
/* start the gfx rings and rlc compute queues */
r = sdma_v3_0_gfx_resume(adev);
@@ -1079,6 +1106,7 @@
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ sdma_v3_0_ctx_switch_enable(adev, false);
sdma_v3_0_enable(adev, false);
return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 90fc93c..fa5a444 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1189,10 +1189,6 @@
return -EINVAL;
}
- adev->ip_block_enabled = kcalloc(adev->num_ip_blocks, sizeof(bool), GFP_KERNEL);
- if (adev->ip_block_enabled == NULL)
- return -ENOMEM;
-
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 8a1f999..9be0070 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -420,6 +420,12 @@
pqm_uninit(&p->pqm);
pdd = kfd_get_process_device_data(dev, p);
+
+ if (!pdd) {
+ mutex_unlock(&p->mutex);
+ return;
+ }
+
if (pdd->reset_wavefronts) {
dbgdev_wave_reset_wavefronts(pdd->dev, p);
pdd->reset_wavefronts = false;
@@ -431,8 +437,7 @@
* We don't call amd_iommu_unbind_pasid() here
* because the IOMMU called us.
*/
- if (pdd)
- pdd->bound = false;
+ pdd->bound = false;
mutex_unlock(&p->mutex);
}
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b69ed97..b9ba061 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4732,7 +4732,7 @@
return 0;
if (edid)
- size = EDID_LENGTH + (1 + edid->extensions);
+ size = EDID_LENGTH * (1 + edid->extensions);
ret = drm_property_replace_global_blob(dev,
&connector->edid_blob_ptr,
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 8867818..d65cbe6 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -157,9 +157,7 @@
struct drm_i915_gem_object *obj;
int ret;
- obj = i915_gem_object_create_stolen(dev, size);
- if (obj == NULL)
- obj = i915_gem_alloc_object(dev, size);
+ obj = i915_gem_alloc_object(dev, size);
if (obj == NULL)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 619dad1..dcc6a88 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -516,17 +516,17 @@
struct page *page_table;
if (WARN_ON(!ppgtt->pdp.page_directory[pdpe]))
- continue;
+ break;
pd = ppgtt->pdp.page_directory[pdpe];
if (WARN_ON(!pd->page_table[pde]))
- continue;
+ break;
pt = pd->page_table[pde];
if (WARN_ON(!pt->page))
- continue;
+ break;
page_table = pt->page;
@@ -2546,6 +2546,8 @@
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
struct i915_address_space *vm;
+ struct i915_vma *vma;
+ bool flush;
i915_check_and_clear_faults(dev);
@@ -2555,17 +2557,24 @@
dev_priv->gtt.base.total,
true);
+ /* Cache flush objects bound into GGTT and rebind them. */
+ vm = &dev_priv->gtt.base;
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
- struct i915_vma *vma = i915_gem_obj_to_vma(obj,
- &dev_priv->gtt.base);
- if (!vma)
- continue;
+ flush = false;
+ list_for_each_entry(vma, &obj->vma_list, vma_link) {
+ if (vma->vm != vm)
+ continue;
- i915_gem_clflush_object(obj, obj->pin_display);
- WARN_ON(i915_vma_bind(vma, obj->cache_level, PIN_UPDATE));
+ WARN_ON(i915_vma_bind(vma, obj->cache_level,
+ PIN_UPDATE));
+
+ flush = true;
+ }
+
+ if (flush)
+ i915_gem_clflush_object(obj, obj->pin_display);
}
-
if (INTEL_INFO(dev)->gen >= 8) {
if (IS_CHERRYVIEW(dev) || IS_BROXTON(dev))
chv_setup_private_ppat(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 633bd1f..d61e74a 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -183,8 +183,18 @@
if (IS_GEN4(dev)) {
uint32_t ddc2 = I915_READ(DCC2);
- if (!(ddc2 & DCC2_MODIFIED_ENHANCED_DISABLE))
+ if (!(ddc2 & DCC2_MODIFIED_ENHANCED_DISABLE)) {
+ /* Since the swizzling may vary within an
+ * object, we have no idea what the swizzling
+ * is for any page in particular. Thus we
+ * cannot migrate tiled pages using the GPU,
+ * nor can we tell userspace what the exact
+ * swizzling is for any object.
+ */
dev_priv->quirks |= QUIRK_PIN_SWIZZLED_PAGES;
+ swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
+ swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
+ }
}
if (dcc == 0xffffffff) {
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f5edb35..2030f60 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3491,6 +3491,7 @@
#define BLM_POLARITY_PNV (1 << 0) /* pnv only */
#define BLC_HIST_CTL (dev_priv->info.display_mmio_offset + 0x61260)
+#define BLM_HISTOGRAM_ENABLE (1 << 31)
/* New registers for PCH-split platforms. Safe where new bits show up, the
* register layout machtes with gen4 BLC_PWM_CTL[12]. */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index dcb1d25..647b140 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4854,6 +4854,9 @@
struct intel_plane *intel_plane;
int pipe = intel_crtc->pipe;
+ if (!intel_crtc->active)
+ return;
+
intel_crtc_wait_for_pending_flips(crtc);
intel_pre_disable_primary(crtc);
@@ -7887,7 +7890,7 @@
int pipe = pipe_config->cpu_transcoder;
enum dpio_channel port = vlv_pipe_to_channel(pipe);
intel_clock_t clock;
- u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2;
+ u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2, pll_dw3;
int refclk = 100000;
mutex_lock(&dev_priv->sb_lock);
@@ -7895,10 +7898,13 @@
pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port));
pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port));
pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port));
+ pll_dw3 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port));
mutex_unlock(&dev_priv->sb_lock);
clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0;
- clock.m2 = ((pll_dw0 & 0xff) << 22) | (pll_dw2 & 0x3fffff);
+ clock.m2 = (pll_dw0 & 0xff) << 22;
+ if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN)
+ clock.m2 |= pll_dw2 & 0x3fffff;
clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf;
clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7;
clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f;
@@ -13303,6 +13309,16 @@
intel_crtc->atomic.wait_vblank = true;
}
+ /*
+ * FIXME: Actually if we will still have any other plane enabled
+ * on the pipe we could let IPS enabled still, but for
+ * now lets consider that when we make primary invisible
+ * by setting DSPCNTR to 0 on update_primary_plane function
+ * IPS needs to be disable.
+ */
+ if (!state->visible || !fb)
+ intel_crtc->atomic.disable_ips = true;
+
intel_crtc->atomic.fb_bits |=
INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
@@ -13400,6 +13416,9 @@
if (intel_crtc->atomic.disable_fbc)
intel_fbc_disable(dev);
+ if (intel_crtc->atomic.disable_ips)
+ hsw_disable_ips(intel_crtc);
+
if (intel_crtc->atomic.pre_disable_primary)
intel_pre_disable_primary(crtc);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 76afc62..6e8faa2 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1140,6 +1140,9 @@
static void
hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config, int link_bw)
{
+ memset(&pipe_config->dpll_hw_state, 0,
+ sizeof(pipe_config->dpll_hw_state));
+
switch (link_bw) {
case DP_LINK_BW_1_62:
pipe_config->ddi_pll_sel = PORT_CLK_SEL_LCPLL_810;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 2afb31a..1059283 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -485,6 +485,7 @@
/* Sleepable operations to perform before commit */
bool wait_for_flips;
bool disable_fbc;
+ bool disable_ips;
bool pre_disable_primary;
bool update_wm;
unsigned disabled_planes;
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 7d83527..55aad23 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -907,6 +907,14 @@
/* XXX: combine this into above write? */
intel_panel_actually_set_backlight(connector, panel->backlight.level);
+
+ /*
+ * Needed to enable backlight on some 855gm models. BLC_HIST_CTL is
+ * 855gm only, but checking for gen2 is safe, as 855gm is the only gen2
+ * that has backlight.
+ */
+ if (IS_GEN2(dev))
+ I915_WRITE(BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
}
static void i965_enable_backlight(struct intel_connector *connector)
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index f2daad8..7841970 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -285,7 +285,7 @@
if (wait) {
if (!wait_for_completion_timeout(&engine->compl,
- msecs_to_jiffies(1))) {
+ msecs_to_jiffies(100))) {
dev_err(dmm->dev, "timed out waiting for done\n");
ret = -ETIMEDOUT;
}
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index ae2df41..12081e6 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -177,7 +177,7 @@
struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
int omap_framebuffer_pin(struct drm_framebuffer *fb);
-int omap_framebuffer_unpin(struct drm_framebuffer *fb);
+void omap_framebuffer_unpin(struct drm_framebuffer *fb);
void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
struct omap_drm_window *win, struct omap_overlay_info *info);
struct drm_connector *omap_framebuffer_get_next_connector(
@@ -211,7 +211,7 @@
enum dma_data_direction dir);
int omap_gem_get_paddr(struct drm_gem_object *obj,
dma_addr_t *paddr, bool remap);
-int omap_gem_put_paddr(struct drm_gem_object *obj);
+void omap_gem_put_paddr(struct drm_gem_object *obj);
int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
bool remap);
int omap_gem_put_pages(struct drm_gem_object *obj);
@@ -236,7 +236,7 @@
/* PVR needs alignment to 8 pixels.. right now that is the most
* restrictive stride requirement..
*/
- return ALIGN(pitch, 8 * bytespp);
+ return roundup(pitch, 8 * bytespp);
}
/* map crtc to vblank mask */
diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c
index 0b967e7..51b1219 100644
--- a/drivers/gpu/drm/omapdrm/omap_fb.c
+++ b/drivers/gpu/drm/omapdrm/omap_fb.c
@@ -287,10 +287,10 @@
}
/* unpin, no longer being scanned out: */
-int omap_framebuffer_unpin(struct drm_framebuffer *fb)
+void omap_framebuffer_unpin(struct drm_framebuffer *fb)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- int ret, i, n = drm_format_num_planes(fb->pixel_format);
+ int i, n = drm_format_num_planes(fb->pixel_format);
mutex_lock(&omap_fb->lock);
@@ -298,24 +298,16 @@
if (omap_fb->pin_count > 0) {
mutex_unlock(&omap_fb->lock);
- return 0;
+ return;
}
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
- ret = omap_gem_put_paddr(plane->bo);
- if (ret)
- goto fail;
+ omap_gem_put_paddr(plane->bo);
plane->paddr = 0;
}
mutex_unlock(&omap_fb->lock);
-
- return 0;
-
-fail:
- mutex_unlock(&omap_fb->lock);
- return ret;
}
struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p)
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 23b5a84..720d16b 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -135,7 +135,7 @@
fbdev->ywrap_enabled = priv->has_dmm && ywrap_enabled;
if (fbdev->ywrap_enabled) {
/* need to align pitch to page size if using DMM scrolling */
- mode_cmd.pitches[0] = ALIGN(mode_cmd.pitches[0], PAGE_SIZE);
+ mode_cmd.pitches[0] = PAGE_ALIGN(mode_cmd.pitches[0]);
}
/* allocate backing bo */
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index 2ab7780..7ed08fdc 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -808,10 +808,10 @@
/* Release physical address, when DMA is no longer being performed.. this
* could potentially unpin and unmap buffers from TILER
*/
-int omap_gem_put_paddr(struct drm_gem_object *obj)
+void omap_gem_put_paddr(struct drm_gem_object *obj)
{
struct omap_gem_object *omap_obj = to_omap_bo(obj);
- int ret = 0;
+ int ret;
mutex_lock(&obj->dev->struct_mutex);
if (omap_obj->paddr_cnt > 0) {
@@ -821,7 +821,6 @@
if (ret) {
dev_err(obj->dev->dev,
"could not unpin pages: %d\n", ret);
- goto fail;
}
ret = tiler_release(omap_obj->block);
if (ret) {
@@ -832,9 +831,8 @@
omap_obj->block = NULL;
}
}
-fail:
+
mutex_unlock(&obj->dev->struct_mutex);
- return ret;
}
/* Get rotated scanout address (only valid if already pinned), at the
@@ -1378,11 +1376,7 @@
omap_obj = kzalloc(sizeof(*omap_obj), GFP_KERNEL);
if (!omap_obj)
- goto fail;
-
- spin_lock(&priv->list_lock);
- list_add(&omap_obj->mm_list, &priv->obj_list);
- spin_unlock(&priv->list_lock);
+ return NULL;
obj = &omap_obj->base;
@@ -1392,11 +1386,19 @@
*/
omap_obj->vaddr = dma_alloc_writecombine(dev->dev, size,
&omap_obj->paddr, GFP_KERNEL);
- if (omap_obj->vaddr)
- flags |= OMAP_BO_DMA;
+ if (!omap_obj->vaddr) {
+ kfree(omap_obj);
+ return NULL;
+ }
+
+ flags |= OMAP_BO_DMA;
}
+ spin_lock(&priv->list_lock);
+ list_add(&omap_obj->mm_list, &priv->obj_list);
+ spin_unlock(&priv->list_lock);
+
omap_obj->flags = flags;
if (flags & OMAP_BO_TILED) {
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index cfa8276..0989046 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -17,6 +17,7 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
@@ -153,9 +154,34 @@
dispc_ovl_enable(omap_plane->id, false);
}
+static int omap_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct drm_crtc_state *crtc_state;
+
+ if (!state->crtc)
+ return 0;
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ if (state->crtc_x < 0 || state->crtc_y < 0)
+ return -EINVAL;
+
+ if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
+ return -EINVAL;
+
+ if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
+ return -EINVAL;
+
+ return 0;
+}
+
static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
.prepare_fb = omap_plane_prepare_fb,
.cleanup_fb = omap_plane_cleanup_fb,
+ .atomic_check = omap_plane_atomic_check,
.atomic_update = omap_plane_atomic_update,
.atomic_disable = omap_plane_atomic_disable,
};
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index b0688b0..248953d 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -4604,6 +4604,31 @@
WDOORBELL32(ring->doorbell_index, ring->wptr);
}
+static void cik_compute_stop(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ u32 j, tmp;
+
+ cik_srbm_select(rdev, ring->me, ring->pipe, ring->queue, 0);
+ /* Disable wptr polling. */
+ tmp = RREG32(CP_PQ_WPTR_POLL_CNTL);
+ tmp &= ~WPTR_POLL_EN;
+ WREG32(CP_PQ_WPTR_POLL_CNTL, tmp);
+ /* Disable HQD. */
+ if (RREG32(CP_HQD_ACTIVE) & 1) {
+ WREG32(CP_HQD_DEQUEUE_REQUEST, 1);
+ for (j = 0; j < rdev->usec_timeout; j++) {
+ if (!(RREG32(CP_HQD_ACTIVE) & 1))
+ break;
+ udelay(1);
+ }
+ WREG32(CP_HQD_DEQUEUE_REQUEST, 0);
+ WREG32(CP_HQD_PQ_RPTR, 0);
+ WREG32(CP_HQD_PQ_WPTR, 0);
+ }
+ cik_srbm_select(rdev, 0, 0, 0, 0);
+}
+
/**
* cik_cp_compute_enable - enable/disable the compute CP MEs
*
@@ -4617,6 +4642,15 @@
if (enable)
WREG32(CP_MEC_CNTL, 0);
else {
+ /*
+ * To make hibernation reliable we need to clear compute ring
+ * configuration before halting the compute ring.
+ */
+ mutex_lock(&rdev->srbm_mutex);
+ cik_compute_stop(rdev,&rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]);
+ cik_compute_stop(rdev,&rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]);
+ mutex_unlock(&rdev->srbm_mutex);
+
WREG32(CP_MEC_CNTL, (MEC_ME1_HALT | MEC_ME2_HALT));
rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
@@ -7930,23 +7964,27 @@
case 1: /* D1 vblank/vline */
switch (src_data) {
case 0: /* D1 vblank */
- if (rdev->irq.stat_regs.cik.disp_int & LB_D1_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[0]) {
- drm_handle_vblank(rdev->ddev, 0);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[0]))
- radeon_crtc_handle_vblank(rdev, 0);
- rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D1 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int & LB_D1_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[0]) {
+ drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[0]))
+ radeon_crtc_handle_vblank(rdev, 0);
+ rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D1 vblank\n");
+
break;
case 1: /* D1 vline */
- if (rdev->irq.stat_regs.cik.disp_int & LB_D1_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D1 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int & LB_D1_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D1 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7956,23 +7994,27 @@
case 2: /* D2 vblank/vline */
switch (src_data) {
case 0: /* D2 vblank */
- if (rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[1]) {
- drm_handle_vblank(rdev->ddev, 1);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[1]))
- radeon_crtc_handle_vblank(rdev, 1);
- rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D2 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[1]) {
+ drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[1]))
+ radeon_crtc_handle_vblank(rdev, 1);
+ rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+
break;
case 1: /* D2 vline */
- if (rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D2 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7982,23 +8024,27 @@
case 3: /* D3 vblank/vline */
switch (src_data) {
case 0: /* D3 vblank */
- if (rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[2]) {
- drm_handle_vblank(rdev->ddev, 2);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[2]))
- radeon_crtc_handle_vblank(rdev, 2);
- rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D3 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[2]) {
+ drm_handle_vblank(rdev->ddev, 2);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[2]))
+ radeon_crtc_handle_vblank(rdev, 2);
+ rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D3 vblank\n");
+
break;
case 1: /* D3 vline */
- if (rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D3 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D3 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -8008,23 +8054,27 @@
case 4: /* D4 vblank/vline */
switch (src_data) {
case 0: /* D4 vblank */
- if (rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[3]) {
- drm_handle_vblank(rdev->ddev, 3);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[3]))
- radeon_crtc_handle_vblank(rdev, 3);
- rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D4 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[3]) {
+ drm_handle_vblank(rdev->ddev, 3);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[3]))
+ radeon_crtc_handle_vblank(rdev, 3);
+ rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D4 vblank\n");
+
break;
case 1: /* D4 vline */
- if (rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D4 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D4 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -8034,23 +8084,27 @@
case 5: /* D5 vblank/vline */
switch (src_data) {
case 0: /* D5 vblank */
- if (rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[4]) {
- drm_handle_vblank(rdev->ddev, 4);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[4]))
- radeon_crtc_handle_vblank(rdev, 4);
- rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D5 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[4]) {
+ drm_handle_vblank(rdev->ddev, 4);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[4]))
+ radeon_crtc_handle_vblank(rdev, 4);
+ rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D5 vblank\n");
+
break;
case 1: /* D5 vline */
- if (rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D5 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D5 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -8060,23 +8114,27 @@
case 6: /* D6 vblank/vline */
switch (src_data) {
case 0: /* D6 vblank */
- if (rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[5]) {
- drm_handle_vblank(rdev->ddev, 5);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[5]))
- radeon_crtc_handle_vblank(rdev, 5);
- rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D6 vblank\n");
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[5]) {
+ drm_handle_vblank(rdev->ddev, 5);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[5]))
+ radeon_crtc_handle_vblank(rdev, 5);
+ rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D6 vblank\n");
+
break;
case 1: /* D6 vline */
- if (rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D6 vline\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D6 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -8096,88 +8154,112 @@
case 42: /* HPD hotplug */
switch (src_data) {
case 0:
- if (rdev->irq.stat_regs.cik.disp_int & DC_HPD1_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD1\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int & DC_HPD1_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD1\n");
+
break;
case 1:
- if (rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD2\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD2\n");
+
break;
case 2:
- if (rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD3\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD3\n");
+
break;
case 3:
- if (rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD4\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD4\n");
+
break;
case 4:
- if (rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD5\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD5\n");
+
break;
case 5:
- if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD6\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD6\n");
+
break;
case 6:
- if (rdev->irq.stat_regs.cik.disp_int & DC_HPD1_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 1\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int & DC_HPD1_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 1\n");
+
break;
case 7:
- if (rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 2\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 2\n");
+
break;
case 8:
- if (rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 3\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 3\n");
+
break;
case 9:
- if (rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 4\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 4\n");
+
break;
case 10:
- if (rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 5\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 5\n");
+
break;
case 11:
- if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
- rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 6\n");
- }
+ if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 6\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index f86eb54..d16f2ee 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -268,6 +268,17 @@
}
rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
+
+ /* FIXME use something else than big hammer but after few days can not
+ * seem to find good combination so reset SDMA blocks as it seems we
+ * do not shut them down properly. This fix hibernation and does not
+ * affect suspend to ram.
+ */
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_SDMA | SOFT_RESET_SDMA1);
+ (void)RREG32(SRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(SRBM_SOFT_RESET, 0);
+ (void)RREG32(SRBM_SOFT_RESET);
}
/**
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 3a6d483..0acde19 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4924,7 +4924,7 @@
return IRQ_NONE;
rptr = rdev->ih.rptr;
- DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
+ DRM_DEBUG("evergreen_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
/* Order reading of wptr vs. reading of IH ring data */
rmb();
@@ -4942,23 +4942,27 @@
case 1: /* D1 vblank/vline */
switch (src_data) {
case 0: /* D1 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[0]) {
- drm_handle_vblank(rdev->ddev, 0);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[0]))
- radeon_crtc_handle_vblank(rdev, 0);
- rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D1 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D1 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[0]) {
+ drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[0]))
+ radeon_crtc_handle_vblank(rdev, 0);
+ rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D1 vblank\n");
+
break;
case 1: /* D1 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D1 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D1 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D1 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4968,23 +4972,27 @@
case 2: /* D2 vblank/vline */
switch (src_data) {
case 0: /* D2 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[1]) {
- drm_handle_vblank(rdev->ddev, 1);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[1]))
- radeon_crtc_handle_vblank(rdev, 1);
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D2 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D2 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[1]) {
+ drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[1]))
+ radeon_crtc_handle_vblank(rdev, 1);
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+
break;
case 1: /* D2 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D2 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D2 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4994,23 +5002,27 @@
case 3: /* D3 vblank/vline */
switch (src_data) {
case 0: /* D3 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[2]) {
- drm_handle_vblank(rdev->ddev, 2);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[2]))
- radeon_crtc_handle_vblank(rdev, 2);
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D3 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D3 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[2]) {
+ drm_handle_vblank(rdev->ddev, 2);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[2]))
+ radeon_crtc_handle_vblank(rdev, 2);
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D3 vblank\n");
+
break;
case 1: /* D3 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D3 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D3 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D3 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5020,23 +5032,27 @@
case 4: /* D4 vblank/vline */
switch (src_data) {
case 0: /* D4 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[3]) {
- drm_handle_vblank(rdev->ddev, 3);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[3]))
- radeon_crtc_handle_vblank(rdev, 3);
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D4 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D4 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[3]) {
+ drm_handle_vblank(rdev->ddev, 3);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[3]))
+ radeon_crtc_handle_vblank(rdev, 3);
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D4 vblank\n");
+
break;
case 1: /* D4 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D4 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D4 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D4 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5046,23 +5062,27 @@
case 5: /* D5 vblank/vline */
switch (src_data) {
case 0: /* D5 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[4]) {
- drm_handle_vblank(rdev->ddev, 4);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[4]))
- radeon_crtc_handle_vblank(rdev, 4);
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D5 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D5 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[4]) {
+ drm_handle_vblank(rdev->ddev, 4);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[4]))
+ radeon_crtc_handle_vblank(rdev, 4);
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D5 vblank\n");
+
break;
case 1: /* D5 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D5 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D5 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D5 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5072,23 +5092,27 @@
case 6: /* D6 vblank/vline */
switch (src_data) {
case 0: /* D6 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[5]) {
- drm_handle_vblank(rdev->ddev, 5);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[5]))
- radeon_crtc_handle_vblank(rdev, 5);
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D6 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D6 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[5]) {
+ drm_handle_vblank(rdev->ddev, 5);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[5]))
+ radeon_crtc_handle_vblank(rdev, 5);
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D6 vblank\n");
+
break;
case 1: /* D6 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D6 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D6 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D6 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5108,88 +5132,100 @@
case 42: /* HPD hotplug */
switch (src_data) {
case 0:
- if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD1\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD1\n");
break;
case 1:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD2\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD2\n");
break;
case 2:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD3\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD3\n");
break;
case 3:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD4\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD4\n");
break;
case 4:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD5\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD5\n");
break;
case 5:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD6\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD6\n");
break;
case 6:
- if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 1\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 1\n");
break;
case 7:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 2\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 2\n");
break;
case 8:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 3\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 3\n");
break;
case 9:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 4\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 4\n");
break;
case 10:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 5\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 5\n");
break;
case 11:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 6\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 6\n");
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5199,46 +5235,52 @@
case 44: /* hdmi */
switch (src_data) {
case 0:
- if (rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status1 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI0\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status1 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI0\n");
break;
case 1:
- if (rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status2 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI1\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status2 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI1\n");
break;
case 2:
- if (rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status3 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI2\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status3 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI2\n");
break;
case 3:
- if (rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status4 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI3\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status4 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI3\n");
break;
case 4:
- if (rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status5 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI4\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status5 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI4\n");
break;
case 5:
- if (rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.evergreen.afmt_status6 &= ~AFMT_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI5\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.afmt_status6 &= ~AFMT_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI5\n");
break;
default:
DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 8e5aeeb..158872e 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -2162,18 +2162,20 @@
DRM_ERROR("radeon: failed initializing UVD (%d).\n", r);
}
- ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
- if (ring->ring_size)
- r = radeon_ring_init(rdev, ring, ring->ring_size, 0, 0x0);
+ if (rdev->family == CHIP_ARUBA) {
+ ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
+ if (ring->ring_size)
+ r = radeon_ring_init(rdev, ring, ring->ring_size, 0, 0x0);
- ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
- if (ring->ring_size)
- r = radeon_ring_init(rdev, ring, ring->ring_size, 0, 0x0);
+ ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
+ if (ring->ring_size)
+ r = radeon_ring_init(rdev, ring, ring->ring_size, 0, 0x0);
- if (!r)
- r = vce_v1_0_init(rdev);
- else if (r != -ENOENT)
- DRM_ERROR("radeon: failed initializing VCE (%d).\n", r);
+ if (!r)
+ r = vce_v1_0_init(rdev);
+ if (r)
+ DRM_ERROR("radeon: failed initializing VCE (%d).\n", r);
+ }
r = radeon_ib_pool_init(rdev);
if (r) {
@@ -2396,7 +2398,8 @@
radeon_irq_kms_fini(rdev);
uvd_v1_0_fini(rdev);
radeon_uvd_fini(rdev);
- radeon_vce_fini(rdev);
+ if (rdev->family == CHIP_ARUBA)
+ radeon_vce_fini(rdev);
cayman_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 35dafd7..4ea5b10 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -4086,23 +4086,27 @@
case 1: /* D1 vblank/vline */
switch (src_data) {
case 0: /* D1 vblank */
- if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[0]) {
- drm_handle_vblank(rdev->ddev, 0);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[0]))
- radeon_crtc_handle_vblank(rdev, 0);
- rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D1 vblank\n");
+ if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D1 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[0]) {
+ drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[0]))
+ radeon_crtc_handle_vblank(rdev, 0);
+ rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D1 vblank\n");
+
break;
case 1: /* D1 vline */
- if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D1 vline\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D1 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D1 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4112,23 +4116,27 @@
case 5: /* D2 vblank/vline */
switch (src_data) {
case 0: /* D2 vblank */
- if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[1]) {
- drm_handle_vblank(rdev->ddev, 1);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[1]))
- radeon_crtc_handle_vblank(rdev, 1);
- rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D2 vblank\n");
+ if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: D2 vblank - IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[1]) {
+ drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[1]))
+ radeon_crtc_handle_vblank(rdev, 1);
+ rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+
break;
case 1: /* D1 vline */
- if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D2 vline\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: D2 vline - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4148,46 +4156,53 @@
case 19: /* HPD/DAC hotplug */
switch (src_data) {
case 0:
- if (rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD1\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT))
+ DRM_DEBUG("IH: HPD1 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD1\n");
break;
case 1:
- if (rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD2\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT))
+ DRM_DEBUG("IH: HPD2 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD2\n");
break;
case 4:
- if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD3\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT))
+ DRM_DEBUG("IH: HPD3 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD3\n");
break;
case 5:
- if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD4\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT))
+ DRM_DEBUG("IH: HPD4 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD4\n");
break;
case 10:
- if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD5\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT))
+ DRM_DEBUG("IH: HPD5 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD5\n");
break;
case 12:
- if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
- rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD6\n");
- }
+ if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT))
+ DRM_DEBUG("IH: HPD6 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD6\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4197,18 +4212,22 @@
case 21: /* hdmi */
switch (src_data) {
case 4:
- if (rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI0\n");
- }
+ if (!(rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: HDMI0 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI0\n");
+
break;
case 5:
- if (rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG) {
- rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
- queue_hdmi = true;
- DRM_DEBUG("IH: HDMI1\n");
- }
+ if (!(rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG))
+ DRM_DEBUG("IH: HDMI1 - IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
+ queue_hdmi = true;
+ DRM_DEBUG("IH: HDMI1\n");
+
break;
default:
DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 09e3f39..98f9ada 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -2483,7 +2483,7 @@
struct drm_buf *buf;
u32 *buffer;
const u8 __user *data;
- int size, pass_size;
+ unsigned int size, pass_size;
u64 src_offset, dst_offset;
if (!radeon_check_offset(dev_priv, tex->offset)) {
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index c892152..fa719c5 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -469,22 +469,22 @@
dig = radeon_encoder->enc_priv;
if (status == connector_status_connected) {
- struct radeon_connector *radeon_connector;
- int sink_type;
-
if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
radeon_encoder->audio = NULL;
return;
}
- radeon_connector = to_radeon_connector(connector);
- sink_type = radeon_dp_getsinktype(radeon_connector);
+ if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ struct radeon_connector *radeon_connector = to_radeon_connector(connector);
- if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
- sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
- radeon_encoder->audio = rdev->audio.dp_funcs;
- else
+ if (radeon_dp_getsinktype(radeon_connector) ==
+ CONNECTOR_OBJECT_ID_DISPLAYPORT)
+ radeon_encoder->audio = rdev->audio.dp_funcs;
+ else
+ radeon_encoder->audio = rdev->audio.hdmi_funcs;
+ } else {
radeon_encoder->audio = rdev->audio.hdmi_funcs;
+ }
dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 45e5406..afaf346 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -91,15 +91,34 @@
struct radeon_device *rdev = crtc->dev->dev_private;
if (ASIC_IS_DCE4(rdev)) {
+ WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
+ upper_32_bits(radeon_crtc->cursor_addr));
+ WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+ lower_32_bits(radeon_crtc->cursor_addr));
WREG32(RADEON_MM_INDEX, EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset);
WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_EN |
EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) |
EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2));
} else if (ASIC_IS_AVIVO(rdev)) {
+ if (rdev->family >= CHIP_RV770) {
+ if (radeon_crtc->crtc_id)
+ WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
+ upper_32_bits(radeon_crtc->cursor_addr));
+ else
+ WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
+ upper_32_bits(radeon_crtc->cursor_addr));
+ }
+
+ WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
+ lower_32_bits(radeon_crtc->cursor_addr));
WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
WREG32(RADEON_MM_DATA, AVIVO_D1CURSOR_EN |
(AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
} else {
+ /* offset is from DISP(2)_BASE_ADDRESS */
+ WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+ radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr);
+
switch (radeon_crtc->crtc_id) {
case 0:
WREG32(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL);
@@ -205,8 +224,9 @@
| (x << 16)
| y));
/* offset is from DISP(2)_BASE_ADDRESS */
- WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
- (yorigin * 256)));
+ WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+ radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr +
+ yorigin * 256);
}
radeon_crtc->cursor_x = x;
@@ -227,53 +247,6 @@
return ret;
}
-static int radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj)
-{
- struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
- struct radeon_device *rdev = crtc->dev->dev_private;
- struct radeon_bo *robj = gem_to_radeon_bo(obj);
- uint64_t gpu_addr;
- int ret;
-
- ret = radeon_bo_reserve(robj, false);
- if (unlikely(ret != 0))
- goto fail;
- /* Only 27 bit offset for legacy cursor */
- ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
- ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
- &gpu_addr);
- radeon_bo_unreserve(robj);
- if (ret)
- goto fail;
-
- if (ASIC_IS_DCE4(rdev)) {
- WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
- upper_32_bits(gpu_addr));
- WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
- gpu_addr & 0xffffffff);
- } else if (ASIC_IS_AVIVO(rdev)) {
- if (rdev->family >= CHIP_RV770) {
- if (radeon_crtc->crtc_id)
- WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
- else
- WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
- }
- WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
- gpu_addr & 0xffffffff);
- } else {
- radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr;
- /* offset is from DISP(2)_BASE_ADDRESS */
- WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
- }
-
- return 0;
-
-fail:
- drm_gem_object_unreference_unlocked(obj);
-
- return ret;
-}
-
int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
@@ -283,7 +256,9 @@
int32_t hot_y)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+ struct radeon_device *rdev = crtc->dev->dev_private;
struct drm_gem_object *obj;
+ struct radeon_bo *robj;
int ret;
if (!handle) {
@@ -305,6 +280,23 @@
return -ENOENT;
}
+ robj = gem_to_radeon_bo(obj);
+ ret = radeon_bo_reserve(robj, false);
+ if (ret != 0) {
+ drm_gem_object_unreference_unlocked(obj);
+ return ret;
+ }
+ /* Only 27 bit offset for legacy cursor */
+ ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
+ ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
+ &radeon_crtc->cursor_addr);
+ radeon_bo_unreserve(robj);
+ if (ret) {
+ DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret);
+ drm_gem_object_unreference_unlocked(obj);
+ return ret;
+ }
+
radeon_crtc->cursor_width = width;
radeon_crtc->cursor_height = height;
@@ -323,13 +315,7 @@
radeon_crtc->cursor_hot_y = hot_y;
}
- ret = radeon_set_cursor(crtc, obj);
-
- if (ret)
- DRM_ERROR("radeon_set_cursor returned %d, not changing cursor\n",
- ret);
- else
- radeon_show_cursor(crtc);
+ radeon_show_cursor(crtc);
radeon_lock_cursor(crtc, false);
@@ -341,8 +327,7 @@
radeon_bo_unpin(robj);
radeon_bo_unreserve(robj);
}
- if (radeon_crtc->cursor_bo != obj)
- drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
+ drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
}
radeon_crtc->cursor_bo = obj;
@@ -360,7 +345,6 @@
void radeon_cursor_reset(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
- int ret;
if (radeon_crtc->cursor_bo) {
radeon_lock_cursor(crtc, true);
@@ -368,12 +352,7 @@
radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x,
radeon_crtc->cursor_y);
- ret = radeon_set_cursor(crtc, radeon_crtc->cursor_bo);
- if (ret)
- DRM_ERROR("radeon_set_cursor returned %d, not showing "
- "cursor\n", ret);
- else
- radeon_show_cursor(crtc);
+ radeon_show_cursor(crtc);
radeon_lock_cursor(crtc, false);
}
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 2593b11..d8319da 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1080,6 +1080,22 @@
}
/**
+ * Determine a sensible default GART size according to ASIC family.
+ *
+ * @family ASIC family name
+ */
+static int radeon_gart_size_auto(enum radeon_family family)
+{
+ /* default to a larger gart size on newer asics */
+ if (family >= CHIP_TAHITI)
+ return 2048;
+ else if (family >= CHIP_RV770)
+ return 1024;
+ else
+ return 512;
+}
+
+/**
* radeon_check_arguments - validate module params
*
* @rdev: radeon_device pointer
@@ -1097,27 +1113,17 @@
}
if (radeon_gart_size == -1) {
- /* default to a larger gart size on newer asics */
- if (rdev->family >= CHIP_RV770)
- radeon_gart_size = 1024;
- else
- radeon_gart_size = 512;
+ radeon_gart_size = radeon_gart_size_auto(rdev->family);
}
/* gtt size must be power of two and greater or equal to 32M */
if (radeon_gart_size < 32) {
dev_warn(rdev->dev, "gart size (%d) too small\n",
radeon_gart_size);
- if (rdev->family >= CHIP_RV770)
- radeon_gart_size = 1024;
- else
- radeon_gart_size = 512;
+ radeon_gart_size = radeon_gart_size_auto(rdev->family);
} else if (!radeon_check_pot_argument(radeon_gart_size)) {
dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
radeon_gart_size);
- if (rdev->family >= CHIP_RV770)
- radeon_gart_size = 1024;
- else
- radeon_gart_size = 512;
+ radeon_gart_size = radeon_gart_size_auto(rdev->family);
}
rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
@@ -1572,11 +1578,21 @@
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
}
- /* unpin the front buffers */
+ /* unpin the front buffers and cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
struct radeon_bo *robj;
+ if (radeon_crtc->cursor_bo) {
+ struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+ r = radeon_bo_reserve(robj, false);
+ if (r == 0) {
+ radeon_bo_unpin(robj);
+ radeon_bo_unreserve(robj);
+ }
+ }
+
if (rfb == NULL || rfb->obj == NULL) {
continue;
}
@@ -1639,6 +1655,7 @@
{
struct drm_connector *connector;
struct radeon_device *rdev = dev->dev_private;
+ struct drm_crtc *crtc;
int r;
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
@@ -1678,6 +1695,27 @@
radeon_restore_bios_scratch_regs(rdev);
+ /* pin cursors */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
+ if (radeon_crtc->cursor_bo) {
+ struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+ r = radeon_bo_reserve(robj, false);
+ if (r == 0) {
+ /* Only 27 bit offset for legacy cursor */
+ r = radeon_bo_pin_restricted(robj,
+ RADEON_GEM_DOMAIN_VRAM,
+ ASIC_IS_AVIVO(rdev) ?
+ 0 : 1 << 27,
+ &radeon_crtc->cursor_addr);
+ if (r != 0)
+ DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
+ radeon_bo_unreserve(robj);
+ }
+ }
+ }
+
/* init dig PHYs, disp eng pll */
if (rdev->is_atom_bios) {
radeon_atom_encoder_init(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index ac3c131..013ec71 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -428,7 +428,6 @@
int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp)
{
- struct radeon_device *rdev = dev->dev_private;
struct drm_radeon_gem_busy *args = data;
struct drm_gem_object *gobj;
struct radeon_bo *robj;
@@ -440,10 +439,16 @@
return -ENOENT;
}
robj = gem_to_radeon_bo(gobj);
- r = radeon_bo_wait(robj, &cur_placement, true);
+
+ r = reservation_object_test_signaled_rcu(robj->tbo.resv, true);
+ if (r == 0)
+ r = -EBUSY;
+ else
+ r = 0;
+
+ cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
args->domain = radeon_mem_type_to_domain(cur_placement);
drm_gem_object_unreference_unlocked(gobj);
- r = radeon_gem_handle_lockup(rdev, r);
return r;
}
@@ -471,6 +476,7 @@
r = ret;
/* Flush HDP cache via MMIO if necessary */
+ cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
if (rdev->asic->mmio_hdp_flush &&
radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
robj->rdev->asic->mmio_hdp_flush(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 6de5459..07909d8 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -343,7 +343,6 @@
int max_cursor_width;
int max_cursor_height;
uint32_t legacy_display_base_addr;
- uint32_t legacy_cursor_offset;
enum radeon_rmx_type rmx_type;
u8 h_border;
u8 v_border;
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index edafd3c..06ac59f 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -719,7 +719,7 @@
return 0;
if (gtt && gtt->userptr) {
- ttm->sg = kcalloc(1, sizeof(struct sg_table), GFP_KERNEL);
+ ttm->sg = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
if (!ttm->sg)
return -ENOMEM;
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 3662157..48d97c0 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -493,38 +493,35 @@
}
if (bo_va->it.start || bo_va->it.last) {
- spin_lock(&vm->status_lock);
- if (list_empty(&bo_va->vm_status)) {
- /* add a clone of the bo_va to clear the old address */
- struct radeon_bo_va *tmp;
- spin_unlock(&vm->status_lock);
- tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
- if (!tmp) {
- mutex_unlock(&vm->mutex);
- r = -ENOMEM;
- goto error_unreserve;
- }
- tmp->it.start = bo_va->it.start;
- tmp->it.last = bo_va->it.last;
- tmp->vm = vm;
- tmp->bo = radeon_bo_ref(bo_va->bo);
- spin_lock(&vm->status_lock);
- list_add(&tmp->vm_status, &vm->freed);
+ /* add a clone of the bo_va to clear the old address */
+ struct radeon_bo_va *tmp;
+ tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
+ if (!tmp) {
+ mutex_unlock(&vm->mutex);
+ r = -ENOMEM;
+ goto error_unreserve;
}
- spin_unlock(&vm->status_lock);
+ tmp->it.start = bo_va->it.start;
+ tmp->it.last = bo_va->it.last;
+ tmp->vm = vm;
+ tmp->bo = radeon_bo_ref(bo_va->bo);
interval_tree_remove(&bo_va->it, &vm->va);
+ spin_lock(&vm->status_lock);
bo_va->it.start = 0;
bo_va->it.last = 0;
+ list_del_init(&bo_va->vm_status);
+ list_add(&tmp->vm_status, &vm->freed);
+ spin_unlock(&vm->status_lock);
}
if (soffset || eoffset) {
+ spin_lock(&vm->status_lock);
bo_va->it.start = soffset;
bo_va->it.last = eoffset - 1;
- interval_tree_insert(&bo_va->it, &vm->va);
- spin_lock(&vm->status_lock);
list_add(&bo_va->vm_status, &vm->cleared);
spin_unlock(&vm->status_lock);
+ interval_tree_insert(&bo_va->it, &vm->va);
}
bo_va->flags = flags;
@@ -1129,12 +1126,12 @@
interval_tree_remove(&bo_va->it, &vm->va);
spin_lock(&vm->status_lock);
- if (list_empty(&bo_va->vm_status)) {
+ list_del(&bo_va->vm_status);
+ if (bo_va->it.start || bo_va->it.last) {
bo_va->bo = radeon_bo_ref(bo_va->bo);
list_add(&bo_va->vm_status, &vm->freed);
} else {
radeon_fence_unref(&bo_va->last_pt_update);
- list_del(&bo_va->vm_status);
kfree(bo_va);
}
spin_unlock(&vm->status_lock);
@@ -1158,7 +1155,8 @@
list_for_each_entry(bo_va, &bo->va, bo_list) {
spin_lock(&bo_va->vm->status_lock);
- if (list_empty(&bo_va->vm_status))
+ if (list_empty(&bo_va->vm_status) &&
+ (bo_va->it.start || bo_va->it.last))
list_add(&bo_va->vm_status, &bo_va->vm->invalidated);
spin_unlock(&bo_va->vm->status_lock);
}
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 26388b5..07037e3 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -6466,23 +6466,27 @@
case 1: /* D1 vblank/vline */
switch (src_data) {
case 0: /* D1 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[0]) {
- drm_handle_vblank(rdev->ddev, 0);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[0]))
- radeon_crtc_handle_vblank(rdev, 0);
- rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D1 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[0]) {
+ drm_handle_vblank(rdev->ddev, 0);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[0]))
+ radeon_crtc_handle_vblank(rdev, 0);
+ rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D1 vblank\n");
+
break;
case 1: /* D1 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D1 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D1 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6492,23 +6496,27 @@
case 2: /* D2 vblank/vline */
switch (src_data) {
case 0: /* D2 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[1]) {
- drm_handle_vblank(rdev->ddev, 1);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[1]))
- radeon_crtc_handle_vblank(rdev, 1);
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D2 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[1]) {
+ drm_handle_vblank(rdev->ddev, 1);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[1]))
+ radeon_crtc_handle_vblank(rdev, 1);
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D2 vblank\n");
+
break;
case 1: /* D2 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D2 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D2 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6518,23 +6526,27 @@
case 3: /* D3 vblank/vline */
switch (src_data) {
case 0: /* D3 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[2]) {
- drm_handle_vblank(rdev->ddev, 2);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[2]))
- radeon_crtc_handle_vblank(rdev, 2);
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D3 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[2]) {
+ drm_handle_vblank(rdev->ddev, 2);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[2]))
+ radeon_crtc_handle_vblank(rdev, 2);
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D3 vblank\n");
+
break;
case 1: /* D3 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D3 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D3 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6544,23 +6556,27 @@
case 4: /* D4 vblank/vline */
switch (src_data) {
case 0: /* D4 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[3]) {
- drm_handle_vblank(rdev->ddev, 3);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[3]))
- radeon_crtc_handle_vblank(rdev, 3);
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D4 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[3]) {
+ drm_handle_vblank(rdev->ddev, 3);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[3]))
+ radeon_crtc_handle_vblank(rdev, 3);
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D4 vblank\n");
+
break;
case 1: /* D4 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D4 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D4 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6570,23 +6586,27 @@
case 5: /* D5 vblank/vline */
switch (src_data) {
case 0: /* D5 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[4]) {
- drm_handle_vblank(rdev->ddev, 4);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[4]))
- radeon_crtc_handle_vblank(rdev, 4);
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D5 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[4]) {
+ drm_handle_vblank(rdev->ddev, 4);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[4]))
+ radeon_crtc_handle_vblank(rdev, 4);
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D5 vblank\n");
+
break;
case 1: /* D5 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D5 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D5 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6596,23 +6616,27 @@
case 6: /* D6 vblank/vline */
switch (src_data) {
case 0: /* D6 vblank */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
- if (rdev->irq.crtc_vblank_int[5]) {
- drm_handle_vblank(rdev->ddev, 5);
- rdev->pm.vblank_sync = true;
- wake_up(&rdev->irq.vblank_queue);
- }
- if (atomic_read(&rdev->irq.pflip[5]))
- radeon_crtc_handle_vblank(rdev, 5);
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
- DRM_DEBUG("IH: D6 vblank\n");
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ if (rdev->irq.crtc_vblank_int[5]) {
+ drm_handle_vblank(rdev->ddev, 5);
+ rdev->pm.vblank_sync = true;
+ wake_up(&rdev->irq.vblank_queue);
}
+ if (atomic_read(&rdev->irq.pflip[5]))
+ radeon_crtc_handle_vblank(rdev, 5);
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+ DRM_DEBUG("IH: D6 vblank\n");
+
break;
case 1: /* D6 vline */
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
- DRM_DEBUG("IH: D6 vline\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+ DRM_DEBUG("IH: D6 vline\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6632,88 +6656,112 @@
case 42: /* HPD hotplug */
switch (src_data) {
case 0:
- if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD1\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD1\n");
+
break;
case 1:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD2\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD2\n");
+
break;
case 2:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD3\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD3\n");
+
break;
case 3:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD4\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD4\n");
+
break;
case 4:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD5\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD5\n");
+
break;
case 5:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
- queue_hotplug = true;
- DRM_DEBUG("IH: HPD6\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+ queue_hotplug = true;
+ DRM_DEBUG("IH: HPD6\n");
+
break;
case 6:
- if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 1\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 1\n");
+
break;
case 7:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 2\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 2\n");
+
break;
case 8:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 3\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 3\n");
+
break;
case 9:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 4\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 4\n");
+
break;
case 10:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 5\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 5\n");
+
break;
case 11:
- if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
- rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
- queue_dp = true;
- DRM_DEBUG("IH: HPD_RX 6\n");
- }
+ if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+ DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+ rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+ queue_dp = true;
+ DRM_DEBUG("IH: HPD_RX 6\n");
+
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 2a80882..37c16af 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -777,7 +777,7 @@
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
- i8k_hwmon_dev = hwmon_device_register_with_groups(NULL, "dell-smm",
+ i8k_hwmon_dev = hwmon_device_register_with_groups(NULL, "dell_smm",
NULL, i8k_groups);
if (IS_ERR(i8k_hwmon_dev)) {
err = PTR_ERR(i8k_hwmon_dev);
diff --git a/drivers/hwmon/mcp3021.c b/drivers/hwmon/mcp3021.c
index d219c06..972444a 100644
--- a/drivers/hwmon/mcp3021.c
+++ b/drivers/hwmon/mcp3021.c
@@ -31,14 +31,11 @@
/* output format */
#define MCP3021_SAR_SHIFT 2
#define MCP3021_SAR_MASK 0x3ff
-
#define MCP3021_OUTPUT_RES 10 /* 10-bit resolution */
-#define MCP3021_OUTPUT_SCALE 4
#define MCP3221_SAR_SHIFT 0
#define MCP3221_SAR_MASK 0xfff
#define MCP3221_OUTPUT_RES 12 /* 12-bit resolution */
-#define MCP3221_OUTPUT_SCALE 1
enum chips {
mcp3021,
@@ -54,7 +51,6 @@
u16 sar_shift;
u16 sar_mask;
u8 output_res;
- u8 output_scale;
};
static int mcp3021_read16(struct i2c_client *client)
@@ -84,13 +80,7 @@
static inline u16 volts_from_reg(struct mcp3021_data *data, u16 val)
{
- if (val == 0)
- return 0;
-
- val = val * data->output_scale - data->output_scale / 2;
-
- return val * DIV_ROUND_CLOSEST(data->vdd,
- (1 << data->output_res) * data->output_scale);
+ return DIV_ROUND_CLOSEST(data->vdd * val, 1 << data->output_res);
}
static ssize_t show_in_input(struct device *dev, struct device_attribute *attr,
@@ -132,14 +122,12 @@
data->sar_shift = MCP3021_SAR_SHIFT;
data->sar_mask = MCP3021_SAR_MASK;
data->output_res = MCP3021_OUTPUT_RES;
- data->output_scale = MCP3021_OUTPUT_SCALE;
break;
case mcp3221:
data->sar_shift = MCP3221_SAR_SHIFT;
data->sar_mask = MCP3221_SAR_MASK;
data->output_res = MCP3221_OUTPUT_RES;
- data->output_scale = MCP3221_OUTPUT_SCALE;
break;
}
diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c
index 5576579..28fcb2e 100644
--- a/drivers/hwmon/nct7802.c
+++ b/drivers/hwmon/nct7802.c
@@ -547,7 +547,7 @@
if (index >= 9 && index < 18 &&
(reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08) /* RD2 */
return 0;
- if (index >= 18 && index < 27 && (reg & 0x30) != 0x10) /* RD3 */
+ if (index >= 18 && index < 27 && (reg & 0x30) != 0x20) /* RD3 */
return 0;
if (index >= 27 && index < 35) /* local */
return attr->mode;
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index b10353b..697007a 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1937,27 +1937,11 @@
static void w82627ehf_swap_tempreg(struct w83627ehf_data *data,
int r1, int r2)
{
- u16 tmp;
-
- tmp = data->temp_src[r1];
- data->temp_src[r1] = data->temp_src[r2];
- data->temp_src[r2] = tmp;
-
- tmp = data->reg_temp[r1];
- data->reg_temp[r1] = data->reg_temp[r2];
- data->reg_temp[r2] = tmp;
-
- tmp = data->reg_temp_over[r1];
- data->reg_temp_over[r1] = data->reg_temp_over[r2];
- data->reg_temp_over[r2] = tmp;
-
- tmp = data->reg_temp_hyst[r1];
- data->reg_temp_hyst[r1] = data->reg_temp_hyst[r2];
- data->reg_temp_hyst[r2] = tmp;
-
- tmp = data->reg_temp_config[r1];
- data->reg_temp_config[r1] = data->reg_temp_config[r2];
- data->reg_temp_config[r2] = tmp;
+ swap(data->temp_src[r1], data->temp_src[r2]);
+ swap(data->reg_temp[r1], data->reg_temp[r2]);
+ swap(data->reg_temp_over[r1], data->reg_temp_over[r2]);
+ swap(data->reg_temp_hyst[r1], data->reg_temp_hyst[r2]);
+ swap(data->reg_temp_config[r1], data->reg_temp_config[r2]);
}
static void
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 4068db4..0a8bce7 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -289,10 +289,7 @@
u8 temp1[3]; /* current, over, thyst */
u8 temp_add[2][6]; /* Register value */
u8 fan_div[7]; /* Register encoding, shifted right */
- u8 pwm[7]; /*
- * We only consider the first 3 set of pwm,
- * although 792 chip has 7 set of pwm.
- */
+ u8 pwm[7]; /* The 7 PWM outputs */
u8 pwmenable[3];
u32 alarms; /* realtime status register encoding,combined */
u8 chassis; /* Chassis status */
@@ -1075,6 +1072,10 @@
static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
+static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
+static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
+static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
show_pwmenable, store_pwmenable, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
@@ -1087,6 +1088,14 @@
show_pwm_mode, store_pwm_mode, 1);
static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
show_pwm_mode, store_pwm_mode, 2);
+static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 3);
+static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 4);
+static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 5);
+static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 6);
static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
show_tolerance, store_tolerance, 1);
static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
@@ -1177,30 +1186,38 @@
static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
show_fan_div, store_fan_div, 7);
-static struct attribute *w83792d_attributes_fan[4][5] = {
+static struct attribute *w83792d_attributes_fan[4][7] = {
{
&sensor_dev_attr_fan4_input.dev_attr.attr,
&sensor_dev_attr_fan4_min.dev_attr.attr,
&sensor_dev_attr_fan4_div.dev_attr.attr,
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm4.dev_attr.attr,
+ &sensor_dev_attr_pwm4_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan5_input.dev_attr.attr,
&sensor_dev_attr_fan5_min.dev_attr.attr,
&sensor_dev_attr_fan5_div.dev_attr.attr,
&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm5.dev_attr.attr,
+ &sensor_dev_attr_pwm5_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan6_input.dev_attr.attr,
&sensor_dev_attr_fan6_min.dev_attr.attr,
&sensor_dev_attr_fan6_div.dev_attr.attr,
&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm6.dev_attr.attr,
+ &sensor_dev_attr_pwm6_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan7_input.dev_attr.attr,
&sensor_dev_attr_fan7_min.dev_attr.attr,
&sensor_dev_attr_fan7_div.dev_attr.attr,
&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm7.dev_attr.attr,
+ &sensor_dev_attr_pwm7_mode.dev_attr.attr,
NULL
}
};
diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig
index 3612cb5..73a4016 100644
--- a/drivers/hwspinlock/Kconfig
+++ b/drivers/hwspinlock/Kconfig
@@ -18,6 +18,30 @@
If unsure, say N.
+config HWSPINLOCK_QCOM
+ tristate "Qualcomm Hardware Spinlock device"
+ depends on ARCH_QCOM
+ select HWSPINLOCK
+ select MFD_SYSCON
+ help
+ Say y here to support the Qualcomm Hardware Mutex functionality, which
+ provides a synchronisation mechanism for the various processors on
+ the SoC.
+
+ If unsure, say N.
+
+config HWSPINLOCK_SIRF
+ tristate "SIRF Hardware Spinlock device"
+ depends on ARCH_SIRF
+ select HWSPINLOCK
+ help
+ Say y here to support the SIRF Hardware Spinlock device, which
+ provides a synchronisation mechanism for the various processors
+ on the SoC.
+
+ It's safe to say n here if you're not interested in SIRF hardware
+ spinlock or just want a bare minimum kernel.
+
config HSEM_U8500
tristate "STE Hardware Semaphore functionality"
depends on ARCH_U8500
diff --git a/drivers/hwspinlock/Makefile b/drivers/hwspinlock/Makefile
index 93eb64b..6b59cb5a 100644
--- a/drivers/hwspinlock/Makefile
+++ b/drivers/hwspinlock/Makefile
@@ -4,4 +4,6 @@
obj-$(CONFIG_HWSPINLOCK) += hwspinlock_core.o
obj-$(CONFIG_HWSPINLOCK_OMAP) += omap_hwspinlock.o
+obj-$(CONFIG_HWSPINLOCK_QCOM) += qcom_hwspinlock.o
+obj-$(CONFIG_HWSPINLOCK_SIRF) += sirf_hwspinlock.o
obj-$(CONFIG_HSEM_U8500) += u8500_hsem.o
diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c
index 461a0d7..52f708b 100644
--- a/drivers/hwspinlock/hwspinlock_core.c
+++ b/drivers/hwspinlock/hwspinlock_core.c
@@ -27,6 +27,7 @@
#include <linux/hwspinlock.h>
#include <linux/pm_runtime.h>
#include <linux/mutex.h>
+#include <linux/of.h>
#include "hwspinlock_internal.h"
@@ -257,6 +258,84 @@
}
EXPORT_SYMBOL_GPL(__hwspin_unlock);
+/**
+ * of_hwspin_lock_simple_xlate - translate hwlock_spec to return a lock id
+ * @bank: the hwspinlock device bank
+ * @hwlock_spec: hwlock specifier as found in the device tree
+ *
+ * This is a simple translation function, suitable for hwspinlock platform
+ * drivers that only has a lock specifier length of 1.
+ *
+ * Returns a relative index of the lock within a specified bank on success,
+ * or -EINVAL on invalid specifier cell count.
+ */
+static inline int
+of_hwspin_lock_simple_xlate(const struct of_phandle_args *hwlock_spec)
+{
+ if (WARN_ON(hwlock_spec->args_count != 1))
+ return -EINVAL;
+
+ return hwlock_spec->args[0];
+}
+
+/**
+ * of_hwspin_lock_get_id() - get lock id for an OF phandle-based specific lock
+ * @np: device node from which to request the specific hwlock
+ * @index: index of the hwlock in the list of values
+ *
+ * This function provides a means for DT users of the hwspinlock module to
+ * get the global lock id of a specific hwspinlock using the phandle of the
+ * hwspinlock device, so that it can be requested using the normal
+ * hwspin_lock_request_specific() API.
+ *
+ * Returns the global lock id number on success, -EPROBE_DEFER if the hwspinlock
+ * device is not yet registered, -EINVAL on invalid args specifier value or an
+ * appropriate error as returned from the OF parsing of the DT client node.
+ */
+int of_hwspin_lock_get_id(struct device_node *np, int index)
+{
+ struct of_phandle_args args;
+ struct hwspinlock *hwlock;
+ struct radix_tree_iter iter;
+ void **slot;
+ int id;
+ int ret;
+
+ ret = of_parse_phandle_with_args(np, "hwlocks", "#hwlock-cells", index,
+ &args);
+ if (ret)
+ return ret;
+
+ /* Find the hwspinlock device: we need its base_id */
+ ret = -EPROBE_DEFER;
+ rcu_read_lock();
+ radix_tree_for_each_slot(slot, &hwspinlock_tree, &iter, 0) {
+ hwlock = radix_tree_deref_slot(slot);
+ if (unlikely(!hwlock))
+ continue;
+
+ if (hwlock->bank->dev->of_node == args.np) {
+ ret = 0;
+ break;
+ }
+ }
+ rcu_read_unlock();
+ if (ret < 0)
+ goto out;
+
+ id = of_hwspin_lock_simple_xlate(&args);
+ if (id < 0 || id >= hwlock->bank->num_locks) {
+ ret = -EINVAL;
+ goto out;
+ }
+ id += hwlock->bank->base_id;
+
+out:
+ of_node_put(args.np);
+ return ret ? ret : id;
+}
+EXPORT_SYMBOL_GPL(of_hwspin_lock_get_id);
+
static int hwspin_lock_register_single(struct hwspinlock *hwlock, int id)
{
struct hwspinlock *tmp;
diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c
index 47a275c..ad2f8ca 100644
--- a/drivers/hwspinlock/omap_hwspinlock.c
+++ b/drivers/hwspinlock/omap_hwspinlock.c
@@ -1,7 +1,7 @@
/*
* OMAP hardware spinlock driver
*
- * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2010-2015 Texas Instruments Incorporated - http://www.ti.com
*
* Contact: Simon Que <sque@ti.com>
* Hari Kanigeri <h-kanigeri2@ti.com>
@@ -27,6 +27,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/hwspinlock.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include "hwspinlock_internal.h"
@@ -80,14 +81,16 @@
static int omap_hwspinlock_probe(struct platform_device *pdev)
{
- struct hwspinlock_pdata *pdata = pdev->dev.platform_data;
+ struct device_node *node = pdev->dev.of_node;
struct hwspinlock_device *bank;
struct hwspinlock *hwlock;
struct resource *res;
void __iomem *io_base;
int num_locks, i, ret;
+ /* Only a single hwspinlock block device is supported */
+ int base_id = 0;
- if (!pdata)
+ if (!node)
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -141,7 +144,7 @@
hwlock->priv = io_base + LOCK_BASE_OFFSET + sizeof(u32) * i;
ret = hwspin_lock_register(bank, &pdev->dev, &omap_hwspinlock_ops,
- pdata->base_id, num_locks);
+ base_id, num_locks);
if (ret)
goto reg_fail;
@@ -174,11 +177,18 @@
return 0;
}
+static const struct of_device_id omap_hwspinlock_of_match[] = {
+ { .compatible = "ti,omap4-hwspinlock", },
+ { /* end */ },
+};
+MODULE_DEVICE_TABLE(of, omap_hwspinlock_of_match);
+
static struct platform_driver omap_hwspinlock_driver = {
.probe = omap_hwspinlock_probe,
.remove = omap_hwspinlock_remove,
.driver = {
.name = "omap_hwspinlock",
+ .of_match_table = of_match_ptr(omap_hwspinlock_of_match),
},
};
diff --git a/drivers/hwspinlock/qcom_hwspinlock.c b/drivers/hwspinlock/qcom_hwspinlock.c
new file mode 100644
index 0000000..c752447
--- /dev/null
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, Sony Mobile Communications AB
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/hwspinlock.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include "hwspinlock_internal.h"
+
+#define QCOM_MUTEX_APPS_PROC_ID 1
+#define QCOM_MUTEX_NUM_LOCKS 32
+
+static int qcom_hwspinlock_trylock(struct hwspinlock *lock)
+{
+ struct regmap_field *field = lock->priv;
+ u32 lock_owner;
+ int ret;
+
+ ret = regmap_field_write(field, QCOM_MUTEX_APPS_PROC_ID);
+ if (ret)
+ return ret;
+
+ ret = regmap_field_read(field, &lock_owner);
+ if (ret)
+ return ret;
+
+ return lock_owner == QCOM_MUTEX_APPS_PROC_ID;
+}
+
+static void qcom_hwspinlock_unlock(struct hwspinlock *lock)
+{
+ struct regmap_field *field = lock->priv;
+ u32 lock_owner;
+ int ret;
+
+ ret = regmap_field_read(field, &lock_owner);
+ if (ret) {
+ pr_err("%s: unable to query spinlock owner\n", __func__);
+ return;
+ }
+
+ if (lock_owner != QCOM_MUTEX_APPS_PROC_ID) {
+ pr_err("%s: spinlock not owned by us (actual owner is %d)\n",
+ __func__, lock_owner);
+ }
+
+ ret = regmap_field_write(field, 0);
+ if (ret)
+ pr_err("%s: failed to unlock spinlock\n", __func__);
+}
+
+static const struct hwspinlock_ops qcom_hwspinlock_ops = {
+ .trylock = qcom_hwspinlock_trylock,
+ .unlock = qcom_hwspinlock_unlock,
+};
+
+static const struct of_device_id qcom_hwspinlock_of_match[] = {
+ { .compatible = "qcom,sfpb-mutex" },
+ { .compatible = "qcom,tcsr-mutex" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, qcom_hwspinlock_of_match);
+
+static int qcom_hwspinlock_probe(struct platform_device *pdev)
+{
+ struct hwspinlock_device *bank;
+ struct device_node *syscon;
+ struct reg_field field;
+ struct regmap *regmap;
+ size_t array_size;
+ u32 stride;
+ u32 base;
+ int ret;
+ int i;
+
+ syscon = of_parse_phandle(pdev->dev.of_node, "syscon", 0);
+ if (!syscon) {
+ dev_err(&pdev->dev, "no syscon property\n");
+ return -ENODEV;
+ }
+
+ regmap = syscon_node_to_regmap(syscon);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1, &base);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "no offset in syscon\n");
+ return -EINVAL;
+ }
+
+ ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 2, &stride);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "no stride syscon\n");
+ return -EINVAL;
+ }
+
+ array_size = QCOM_MUTEX_NUM_LOCKS * sizeof(struct hwspinlock);
+ bank = devm_kzalloc(&pdev->dev, sizeof(*bank) + array_size, GFP_KERNEL);
+ if (!bank)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, bank);
+
+ for (i = 0; i < QCOM_MUTEX_NUM_LOCKS; i++) {
+ field.reg = base + i * stride;
+ field.lsb = 0;
+ field.msb = 31;
+
+ bank->lock[i].priv = devm_regmap_field_alloc(&pdev->dev,
+ regmap, field);
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ ret = hwspin_lock_register(bank, &pdev->dev, &qcom_hwspinlock_ops,
+ 0, QCOM_MUTEX_NUM_LOCKS);
+ if (ret)
+ pm_runtime_disable(&pdev->dev);
+
+ return ret;
+}
+
+static int qcom_hwspinlock_remove(struct platform_device *pdev)
+{
+ struct hwspinlock_device *bank = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = hwspin_lock_unregister(bank);
+ if (ret) {
+ dev_err(&pdev->dev, "%s failed: %d\n", __func__, ret);
+ return ret;
+ }
+
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
+static struct platform_driver qcom_hwspinlock_driver = {
+ .probe = qcom_hwspinlock_probe,
+ .remove = qcom_hwspinlock_remove,
+ .driver = {
+ .name = "qcom_hwspinlock",
+ .of_match_table = qcom_hwspinlock_of_match,
+ },
+};
+
+static int __init qcom_hwspinlock_init(void)
+{
+ return platform_driver_register(&qcom_hwspinlock_driver);
+}
+/* board init code might need to reserve hwspinlocks for predefined purposes */
+postcore_initcall(qcom_hwspinlock_init);
+
+static void __exit qcom_hwspinlock_exit(void)
+{
+ platform_driver_unregister(&qcom_hwspinlock_driver);
+}
+module_exit(qcom_hwspinlock_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Hardware spinlock driver for Qualcomm SoCs");
diff --git a/drivers/hwspinlock/sirf_hwspinlock.c b/drivers/hwspinlock/sirf_hwspinlock.c
new file mode 100644
index 0000000..1601854
--- /dev/null
+++ b/drivers/hwspinlock/sirf_hwspinlock.c
@@ -0,0 +1,136 @@
+/*
+ * SIRF hardware spinlock driver
+ *
+ * Copyright (c) 2015 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/hwspinlock.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include "hwspinlock_internal.h"
+
+struct sirf_hwspinlock {
+ void __iomem *io_base;
+ struct hwspinlock_device bank;
+};
+
+/* Number of Hardware Spinlocks*/
+#define HW_SPINLOCK_NUMBER 30
+
+/* Hardware spinlock register offsets */
+#define HW_SPINLOCK_BASE 0x404
+#define HW_SPINLOCK_OFFSET(x) (HW_SPINLOCK_BASE + 0x4 * (x))
+
+static int sirf_hwspinlock_trylock(struct hwspinlock *lock)
+{
+ void __iomem *lock_addr = lock->priv;
+
+ /* attempt to acquire the lock by reading value == 1 from it */
+ return !!readl(lock_addr);
+}
+
+static void sirf_hwspinlock_unlock(struct hwspinlock *lock)
+{
+ void __iomem *lock_addr = lock->priv;
+
+ /* release the lock by writing 0 to it */
+ writel(0, lock_addr);
+}
+
+static const struct hwspinlock_ops sirf_hwspinlock_ops = {
+ .trylock = sirf_hwspinlock_trylock,
+ .unlock = sirf_hwspinlock_unlock,
+};
+
+static int sirf_hwspinlock_probe(struct platform_device *pdev)
+{
+ struct sirf_hwspinlock *hwspin;
+ struct hwspinlock *hwlock;
+ int idx, ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ hwspin = devm_kzalloc(&pdev->dev, sizeof(*hwspin) +
+ sizeof(*hwlock) * HW_SPINLOCK_NUMBER, GFP_KERNEL);
+ if (!hwspin)
+ return -ENOMEM;
+
+ /* retrieve io base */
+ hwspin->io_base = of_iomap(pdev->dev.of_node, 0);
+ if (!hwspin->io_base)
+ return -ENOMEM;
+
+ for (idx = 0; idx < HW_SPINLOCK_NUMBER; idx++) {
+ hwlock = &hwspin->bank.lock[idx];
+ hwlock->priv = hwspin->io_base + HW_SPINLOCK_OFFSET(idx);
+ }
+
+ platform_set_drvdata(pdev, hwspin);
+
+ pm_runtime_enable(&pdev->dev);
+
+ ret = hwspin_lock_register(&hwspin->bank, &pdev->dev,
+ &sirf_hwspinlock_ops, 0,
+ HW_SPINLOCK_NUMBER);
+ if (ret)
+ goto reg_failed;
+
+ return 0;
+
+reg_failed:
+ pm_runtime_disable(&pdev->dev);
+ iounmap(hwspin->io_base);
+
+ return ret;
+}
+
+static int sirf_hwspinlock_remove(struct platform_device *pdev)
+{
+ struct sirf_hwspinlock *hwspin = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = hwspin_lock_unregister(&hwspin->bank);
+ if (ret) {
+ dev_err(&pdev->dev, "%s failed: %d\n", __func__, ret);
+ return ret;
+ }
+
+ pm_runtime_disable(&pdev->dev);
+
+ iounmap(hwspin->io_base);
+
+ return 0;
+}
+
+static const struct of_device_id sirf_hwpinlock_ids[] = {
+ { .compatible = "sirf,hwspinlock", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sirf_hwpinlock_ids);
+
+static struct platform_driver sirf_hwspinlock_driver = {
+ .probe = sirf_hwspinlock_probe,
+ .remove = sirf_hwspinlock_remove,
+ .driver = {
+ .name = "atlas7_hwspinlock",
+ .of_match_table = of_match_ptr(sirf_hwpinlock_ids),
+ },
+};
+
+module_platform_driver(sirf_hwspinlock_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("SIRF Hardware spinlock driver");
+MODULE_AUTHOR("Wei Chen <wei.chen@csr.com>");
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 35ac237..577d58d 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -633,6 +633,7 @@
config I2C_MT65XX
tristate "MediaTek I2C adapter"
depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on HAS_DMA
help
This selects the MediaTek(R) Integrated Inter Circuit bus driver
for MT65xx and MT81xx.
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
index 19b2d68..f325663 100644
--- a/drivers/i2c/busses/i2c-jz4780.c
+++ b/drivers/i2c/busses/i2c-jz4780.c
@@ -764,12 +764,15 @@
if (IS_ERR(i2c->clk))
return PTR_ERR(i2c->clk);
- clk_prepare_enable(i2c->clk);
+ ret = clk_prepare_enable(i2c->clk);
+ if (ret)
+ return ret;
- if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
- &clk_freq)) {
+ ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+ &clk_freq);
+ if (ret) {
dev_err(&pdev->dev, "clock-frequency not specified in DT");
- return clk_freq;
+ goto err;
}
i2c->speed = clk_freq / 1000;
@@ -790,10 +793,8 @@
i2c->irq = platform_get_irq(pdev, 0);
ret = devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0,
dev_name(&pdev->dev), i2c);
- if (ret) {
- ret = -ENODEV;
+ if (ret)
goto err;
- }
ret = i2c_add_adapter(&i2c->adap);
if (ret < 0) {
diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c
index dcca707..1c9cb65 100644
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -419,6 +419,7 @@
rc = i2c_add_adapter(adapter);
if (rc) {
dev_err(&pdev->dev, "Adapter registeration failed\n");
+ mbox_free_channel(ctx->mbox_chan);
return rc;
}
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 069a41f..e6d4935 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1012,6 +1012,8 @@
*/
void i2c_unregister_device(struct i2c_client *client)
{
+ if (client->dev.of_node)
+ of_node_clear_flag(client->dev.of_node, OF_POPULATED);
device_unregister(&client->dev);
}
EXPORT_SYMBOL_GPL(i2c_unregister_device);
@@ -1320,8 +1322,11 @@
dev_dbg(&adap->dev, "of_i2c: walking child nodes\n");
- for_each_available_child_of_node(adap->dev.of_node, node)
+ for_each_available_child_of_node(adap->dev.of_node, node) {
+ if (of_node_test_and_set_flag(node, OF_POPULATED))
+ continue;
of_i2c_register_device(adap, node);
+ }
}
static int of_dev_node_match(struct device *dev, void *data)
@@ -1853,6 +1858,11 @@
if (adap == NULL)
return NOTIFY_OK; /* not for us */
+ if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) {
+ put_device(&adap->dev);
+ return NOTIFY_OK;
+ }
+
client = of_i2c_register_device(adap, rd->dn);
put_device(&adap->dev);
@@ -1863,6 +1873,10 @@
}
break;
case OF_RECONFIG_CHANGE_REMOVE:
+ /* already depopulated? */
+ if (!of_node_check_flag(rd->dn, OF_POPULATED))
+ return NOTIFY_OK;
+
/* find our device by node */
client = of_find_i2c_device_by_node(rd->dn);
if (client == NULL)
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 1ca8e32..25422a3 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -277,7 +277,7 @@
}
spin_lock(&tmp->d_lock);
- if (!d_unhashed(tmp) && d_really_is_positive(tmp)) {
+ if (simple_positive(tmp)) {
dget_dlock(tmp);
__d_drop(tmp);
spin_unlock(&tmp->d_lock);
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index bdd5d38..13ef22b 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -455,7 +455,7 @@
}
spin_lock(&tmp->d_lock);
- if (!d_unhashed(tmp) && d_really_is_positive(tmp)) {
+ if (simple_positive(tmp)) {
__d_drop(tmp);
spin_unlock(&tmp->d_lock);
simple_unlink(d_inode(parent), tmp);
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index f3b7a34..7717009 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1356,7 +1356,7 @@
if (!rc && dump_payload == false && unsol_data)
iscsit_set_unsoliticed_dataout(cmd);
else if (dump_payload && imm_data)
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
@@ -1781,7 +1781,7 @@
cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) {
struct se_cmd *se_cmd = &cmd->se_cmd;
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
}
@@ -1954,7 +1954,7 @@
spin_unlock_bh(&cmd->istate_lock);
if (ret) {
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_send_check_condition_and_sense(se_cmd,
se_cmd->pi_err, 0);
} else {
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 4556cd1..82897ca 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -47,7 +47,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric_configfs.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "ib_srpt.h"
/* Name of this kernel module. */
@@ -94,7 +93,6 @@
" instead of using the node_guid of the first HCA.");
static struct ib_client srpt_client;
-static const struct target_core_fabric_ops srpt_template;
static void srpt_release_channel(struct srpt_rdma_ch *ch);
static int srpt_queue_status(struct se_cmd *cmd);
@@ -1336,12 +1334,12 @@
BUG_ON(ch->sess == NULL);
- target_put_sess_cmd(ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
goto out;
}
pr_debug("Aborting cmd with state %d and tag %lld\n", state,
- ioctx->tag);
+ ioctx->cmd.tag);
switch (state) {
case SRPT_STATE_NEW:
@@ -1367,11 +1365,11 @@
* not been received in time.
*/
srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
case SRPT_STATE_MGMT_RSP_SENT:
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
break;
default:
WARN(1, "Unexpected command state (%d)", state);
@@ -1389,7 +1387,6 @@
{
struct srpt_send_ioctx *ioctx;
enum srpt_command_state state;
- struct se_cmd *cmd;
u32 index;
atomic_inc(&ch->sq_wr_avail);
@@ -1397,7 +1394,6 @@
index = idx_from_wr_id(wr_id);
ioctx = ch->ioctx_ring[index];
state = srpt_get_cmd_state(ioctx);
- cmd = &ioctx->cmd;
WARN_ON(state != SRPT_STATE_CMD_RSP_SENT
&& state != SRPT_STATE_MGMT_RSP_SENT
@@ -1474,10 +1470,8 @@
struct srpt_send_ioctx *ioctx,
enum srpt_opcode opcode)
{
- struct se_cmd *cmd;
enum srpt_command_state state;
- cmd = &ioctx->cmd;
state = srpt_get_cmd_state(ioctx);
switch (opcode) {
case SRPT_RDMA_READ_LAST:
@@ -1681,7 +1675,7 @@
struct srpt_send_ioctx *ioctx = container_of(cmd,
struct srpt_send_ioctx, cmd);
- return target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ return target_put_sess_cmd(&ioctx->cmd);
}
/**
@@ -1703,7 +1697,7 @@
srp_cmd = recv_ioctx->ioctx.buf;
cmd = &send_ioctx->cmd;
- send_ioctx->tag = srp_cmd->tag;
+ cmd->tag = srp_cmd->tag;
switch (srp_cmd->task_attr) {
case SRP_CMD_SIMPLE_Q:
@@ -1774,7 +1768,7 @@
for (i = 0; i < ch->rq_size; ++i) {
target = ch->ioctx_ring[i];
if (target->cmd.se_lun == ioctx->cmd.se_lun &&
- target->tag == tag &&
+ target->cmd.tag == tag &&
srpt_get_cmd_state(target) != SRPT_STATE_DONE) {
ret = 0;
/* now let the target core abort &target->cmd; */
@@ -1833,7 +1827,7 @@
srp_tsk->task_tag, srp_tsk->tag, ch->cm_id, ch->sess);
srpt_set_cmd_state(send_ioctx, SRPT_STATE_MGMT);
- send_ioctx->tag = srp_tsk->tag;
+ send_ioctx->cmd.tag = srp_tsk->tag;
tcm_tmr = srp_tmr_to_tcm(srp_tsk->tsk_mgmt_func);
if (tcm_tmr < 0) {
send_ioctx->cmd.se_tmr_req->response =
@@ -2180,12 +2174,9 @@
*/
static void __srpt_close_ch(struct srpt_rdma_ch *ch)
{
- struct srpt_device *sdev;
enum rdma_ch_state prev_state;
unsigned long flags;
- sdev = ch->sport->sdev;
-
spin_lock_irqsave(&ch->spinlock, flags);
prev_state = ch->state;
switch (prev_state) {
@@ -2983,7 +2974,7 @@
case CH_DRAINING:
case CH_RELEASING:
pr_debug("cmd with tag %lld: channel disconnecting\n",
- ioctx->tag);
+ ioctx->cmd.tag);
srpt_set_cmd_state(ioctx, SRPT_STATE_DATA_IN);
ret = -EINVAL;
goto out;
@@ -3058,27 +3049,27 @@
ret = srpt_xfer_data(ch, ioctx);
if (ret) {
pr_err("xfer_data failed for tag %llu\n",
- ioctx->tag);
+ ioctx->cmd.tag);
return;
}
}
if (state != SRPT_STATE_MGMT)
- resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->tag,
+ resp_len = srpt_build_cmd_rsp(ch, ioctx, ioctx->cmd.tag,
cmd->scsi_status);
else {
srp_tm_status
= tcm_to_srp_tsk_mgmt_status(cmd->se_tmr_req->response);
resp_len = srpt_build_tskmgmt_rsp(ch, ioctx, srp_tm_status,
- ioctx->tag);
+ ioctx->cmd.tag);
}
ret = srpt_post_send(ch, ioctx, resp_len);
if (ret) {
pr_err("sending cmd response failed for tag %llu\n",
- ioctx->tag);
+ ioctx->cmd.tag);
srpt_unmap_sg_to_ib_sge(ch, ioctx);
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
- target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
+ target_put_sess_cmd(&ioctx->cmd);
}
}
@@ -3398,11 +3389,6 @@
return "srpt";
}
-static u8 srpt_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- return SCSI_TRANSPORTID_PROTOCOLID_SRP;
-}
-
static char *srpt_get_fabric_wwn(struct se_portal_group *tpg)
{
struct srpt_port *sport = container_of(tpg, struct srpt_port, port_tpg_1);
@@ -3415,69 +3401,6 @@
return 1;
}
-static u32 srpt_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 srpt_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code, unsigned char *buf)
-{
- struct srpt_node_acl *nacl;
- struct spc_rdma_transport_id *tr_id;
-
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- tr_id = (void *)buf;
- tr_id->protocol_identifier = SCSI_TRANSPORTID_PROTOCOLID_SRP;
- memcpy(tr_id->i_port_id, nacl->i_port_id, sizeof(tr_id->i_port_id));
- return sizeof(*tr_id);
-}
-
-static u32 srpt_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- return sizeof(struct spc_rdma_transport_id);
-}
-
-static char *srpt_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf, u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct spc_rdma_transport_id *tr_id;
-
- *port_nexus_ptr = NULL;
- *out_tid_len = sizeof(struct spc_rdma_transport_id);
- tr_id = (void *)buf;
- return (char *)tr_id->i_port_id;
-}
-
-static struct se_node_acl *srpt_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct srpt_node_acl *nacl;
-
- nacl = kzalloc(sizeof(struct srpt_node_acl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct srpt_node_acl\n");
- return NULL;
- }
-
- return &nacl->nacl;
-}
-
-static void srpt_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct srpt_node_acl *nacl;
-
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- kfree(nacl);
-}
-
static u32 srpt_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -3551,14 +3474,6 @@
{
}
-static u32 srpt_get_task_tag(struct se_cmd *se_cmd)
-{
- struct srpt_send_ioctx *ioctx;
-
- ioctx = container_of(se_cmd, struct srpt_send_ioctx, cmd);
- return ioctx->tag;
-}
-
/* Note: only used from inside debug printk's by the TCM core. */
static int srpt_get_tcm_cmd_state(struct se_cmd *se_cmd)
{
@@ -3601,40 +3516,19 @@
* configfs callback function invoked for
* mkdir /sys/kernel/config/target/$driver/$port/$tpg/acls/$i_port_id
*/
-static struct se_node_acl *srpt_make_nodeacl(struct se_portal_group *tpg,
- struct config_group *group,
- const char *name)
+static int srpt_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct srpt_port *sport = container_of(tpg, struct srpt_port, port_tpg_1);
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct srpt_node_acl *nacl;
- int ret = 0;
- u32 nexus_depth = 1;
+ struct srpt_port *sport =
+ container_of(se_nacl->se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_node_acl *nacl =
+ container_of(se_nacl, struct srpt_node_acl, nacl);
u8 i_port_id[16];
if (srpt_parse_i_port_id(i_port_id, name) < 0) {
pr_err("invalid initiator port ID %s\n", name);
- ret = -EINVAL;
- goto err;
+ return -EINVAL;
}
- se_nacl_new = srpt_alloc_fabric_acl(tpg);
- if (!se_nacl_new) {
- ret = -ENOMEM;
- goto err;
- }
- /*
- * nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a node ACL from demo mode to explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(tpg, se_nacl_new, name,
- nexus_depth);
- if (IS_ERR(se_nacl)) {
- ret = PTR_ERR(se_nacl);
- goto err;
- }
- /* Locate our struct srpt_node_acl and set sdev and i_port_id. */
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
memcpy(&nacl->i_port_id[0], &i_port_id[0], 16);
nacl->sport = sport;
@@ -3642,29 +3536,22 @@
list_add_tail(&nacl->list, &sport->port_acl_list);
spin_unlock_irq(&sport->port_acl_lock);
- return se_nacl;
-err:
- return ERR_PTR(ret);
+ return 0;
}
/*
* configfs callback function invoked for
* rmdir /sys/kernel/config/target/$driver/$port/$tpg/acls/$i_port_id
*/
-static void srpt_drop_nodeacl(struct se_node_acl *se_nacl)
+static void srpt_cleanup_nodeacl(struct se_node_acl *se_nacl)
{
- struct srpt_node_acl *nacl;
- struct srpt_device *sdev;
- struct srpt_port *sport;
+ struct srpt_node_acl *nacl =
+ container_of(se_nacl, struct srpt_node_acl, nacl);
+ struct srpt_port *sport = nacl->sport;
- nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
- sport = nacl->sport;
- sdev = sport->sdev;
spin_lock_irq(&sport->port_acl_lock);
list_del(&nacl->list);
spin_unlock_irq(&sport->port_acl_lock);
- core_tpg_del_initiator_node_acl(&sport->port_tpg_1, se_nacl, 1);
- srpt_release_fabric_acl(NULL, se_nacl);
}
static ssize_t srpt_tpg_attrib_show_srp_max_rdma_size(
@@ -3849,8 +3736,7 @@
int res;
/* Initialize sport->port_wwn and sport->port_tpg_1 */
- res = core_tpg_register(&srpt_template, &sport->port_wwn,
- &sport->port_tpg_1, sport, TRANSPORT_TPG_TYPE_NORMAL);
+ res = core_tpg_register(&sport->port_wwn, &sport->port_tpg_1, SCSI_PROTOCOL_SRP);
if (res)
return ERR_PTR(res);
@@ -3920,20 +3806,14 @@
static const struct target_core_fabric_ops srpt_template = {
.module = THIS_MODULE,
.name = "srpt",
+ .node_acl_size = sizeof(struct srpt_node_acl),
.get_fabric_name = srpt_get_fabric_name,
- .get_fabric_proto_ident = srpt_get_fabric_proto_ident,
.tpg_get_wwn = srpt_get_fabric_wwn,
.tpg_get_tag = srpt_get_tag,
- .tpg_get_default_depth = srpt_get_default_depth,
- .tpg_get_pr_transport_id = srpt_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = srpt_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = srpt_parse_pr_out_transport_id,
.tpg_check_demo_mode = srpt_check_false,
.tpg_check_demo_mode_cache = srpt_check_true,
.tpg_check_demo_mode_write_protect = srpt_check_true,
.tpg_check_prod_mode_write_protect = srpt_check_false,
- .tpg_alloc_fabric_acl = srpt_alloc_fabric_acl,
- .tpg_release_fabric_acl = srpt_release_fabric_acl,
.tpg_get_inst_index = srpt_tpg_get_inst_index,
.release_cmd = srpt_release_cmd,
.check_stop_free = srpt_check_stop_free,
@@ -3944,7 +3824,6 @@
.write_pending = srpt_write_pending,
.write_pending_status = srpt_write_pending_status,
.set_default_node_attributes = srpt_set_default_node_attrs,
- .get_task_tag = srpt_get_task_tag,
.get_cmd_state = srpt_get_tcm_cmd_state,
.queue_data_in = srpt_queue_data_in,
.queue_status = srpt_queue_status,
@@ -3958,12 +3837,8 @@
.fabric_drop_wwn = srpt_drop_tport,
.fabric_make_tpg = srpt_make_tpg,
.fabric_drop_tpg = srpt_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = srpt_make_nodeacl,
- .fabric_drop_nodeacl = srpt_drop_nodeacl,
+ .fabric_init_nodeacl = srpt_init_nodeacl,
+ .fabric_cleanup_nodeacl = srpt_cleanup_nodeacl,
.tfc_wwn_attrs = srpt_wwn_attrs,
.tfc_tpg_base_attrs = srpt_tpg_attrs,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h
index d85c0c2..21f8df6 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.h
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.h
@@ -238,7 +238,6 @@
bool rdma_aborted;
struct se_cmd cmd;
struct completion tx_done;
- u64 tag;
int sg_cnt;
int mapped_sg_count;
u16 n_rdma_ius;
@@ -410,34 +409,16 @@
/**
* struct srpt_node_acl - Per-initiator ACL data (managed via configfs).
+ * @nacl: Target core node ACL information.
* @i_port_id: 128-bit SRP initiator port ID.
* @sport: port information.
- * @nacl: Target core node ACL information.
* @list: Element of the per-HCA ACL list.
*/
struct srpt_node_acl {
+ struct se_node_acl nacl;
u8 i_port_id[16];
struct srpt_port *sport;
- struct se_node_acl nacl;
struct list_head list;
};
-/*
- * SRP-releated SCSI persistent reservation definitions.
- *
- * See also SPC4r28, section 7.6.1 (Protocol specific parameters introduction).
- * See also SPC4r28, section 7.6.4.5 (TransportID for initiator ports using
- * SCSI over an RDMA interface).
- */
-
-enum {
- SCSI_TRANSPORTID_PROTOCOLID_SRP = 4,
-};
-
-struct spc_rdma_transport_id {
- uint8_t protocol_identifier;
- uint8_t reserved[7];
- uint8_t i_port_id[16];
-};
-
#endif /* IB_SRPT_H */
diff --git a/drivers/input/input.c b/drivers/input/input.c
index f315784..78d2499 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -677,12 +677,9 @@
int code;
if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
- for (code = 0; code <= KEY_MAX; code++) {
- if (is_event_supported(code, dev->keybit, KEY_MAX) &&
- __test_and_clear_bit(code, dev->key)) {
- input_pass_event(dev, EV_KEY, code, 0);
- }
- }
+ for_each_set_bit(code, dev->key, KEY_CNT)
+ input_pass_event(dev, EV_KEY, code, 0);
+ memset(dev->key, 0, sizeof(dev->key));
input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
}
}
@@ -1626,10 +1623,7 @@
if (!test_bit(EV_##type, dev->evbit)) \
break; \
\
- for (i = 0; i < type##_MAX; i++) { \
- if (!test_bit(i, dev->bits##bit)) \
- continue; \
- \
+ for_each_set_bit(i, dev->bits##bit, type##_CNT) { \
active = test_bit(i, dev->bits); \
if (!active && !on) \
continue; \
@@ -1980,22 +1974,12 @@
events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
- if (test_bit(EV_ABS, dev->evbit)) {
- for (i = 0; i < ABS_CNT; i++) {
- if (test_bit(i, dev->absbit)) {
- if (input_is_mt_axis(i))
- events += mt_slots;
- else
- events++;
- }
- }
- }
+ if (test_bit(EV_ABS, dev->evbit))
+ for_each_set_bit(i, dev->absbit, ABS_CNT)
+ events += input_is_mt_axis(i) ? mt_slots : 1;
- if (test_bit(EV_REL, dev->evbit)) {
- for (i = 0; i < REL_CNT; i++)
- if (test_bit(i, dev->relbit))
- events++;
- }
+ if (test_bit(EV_REL, dev->evbit))
+ events += bitmap_weight(dev->relbit, REL_CNT);
/* Make room for KEY and MSC events */
events += 7;
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 61c7611..f8850f9 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -344,6 +344,7 @@
int mapping; /* map d-pad to buttons or to axes */
int xtype; /* type of xbox device */
+ unsigned long led_no; /* led to lit on xbox360 controllers */
};
/*
@@ -488,6 +489,8 @@
input_sync(dev);
}
+static void xpad_identify_controller(struct usb_xpad *xpad);
+
/*
* xpad360w_process_packet
*
@@ -510,6 +513,11 @@
if (data[1] & 0x80) {
xpad->pad_present = 1;
usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+ /*
+ * Light up the segment corresponding to
+ * controller number.
+ */
+ xpad_identify_controller(xpad);
} else
xpad->pad_present = 0;
}
@@ -881,17 +889,63 @@
struct usb_xpad *xpad;
};
+/**
+ * @param command
+ * 0: off
+ * 1: all blink, then previous setting
+ * 2: 1/top-left blink, then on
+ * 3: 2/top-right blink, then on
+ * 4: 3/bottom-left blink, then on
+ * 5: 4/bottom-right blink, then on
+ * 6: 1/top-left on
+ * 7: 2/top-right on
+ * 8: 3/bottom-left on
+ * 9: 4/bottom-right on
+ * 10: rotate
+ * 11: blink, based on previous setting
+ * 12: slow blink, based on previous setting
+ * 13: rotate with two lights
+ * 14: persistent slow all blink
+ * 15: blink once, then previous setting
+ */
static void xpad_send_led_command(struct usb_xpad *xpad, int command)
{
- if (command >= 0 && command < 14) {
- mutex_lock(&xpad->odata_mutex);
+ command %= 16;
+
+ mutex_lock(&xpad->odata_mutex);
+
+ switch (xpad->xtype) {
+ case XTYPE_XBOX360:
xpad->odata[0] = 0x01;
xpad->odata[1] = 0x03;
xpad->odata[2] = command;
xpad->irq_out->transfer_buffer_length = 3;
- usb_submit_urb(xpad->irq_out, GFP_KERNEL);
- mutex_unlock(&xpad->odata_mutex);
+ break;
+ case XTYPE_XBOX360W:
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x00;
+ xpad->odata[2] = 0x08;
+ xpad->odata[3] = 0x40 + command;
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = 0x00;
+ xpad->odata[6] = 0x00;
+ xpad->odata[7] = 0x00;
+ xpad->odata[8] = 0x00;
+ xpad->odata[9] = 0x00;
+ xpad->odata[10] = 0x00;
+ xpad->odata[11] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 12;
+ break;
}
+
+ usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+ mutex_unlock(&xpad->odata_mutex);
+}
+
+static void xpad_identify_controller(struct usb_xpad *xpad)
+{
+ /* Light up the segment corresponding to controller number */
+ xpad_send_led_command(xpad, (xpad->led_no % 4) + 2);
}
static void xpad_led_set(struct led_classdev *led_cdev,
@@ -905,22 +959,21 @@
static int xpad_led_probe(struct usb_xpad *xpad)
{
- static atomic_t led_seq = ATOMIC_INIT(-1);
- unsigned long led_no;
+ static atomic_t led_seq = ATOMIC_INIT(-1);
struct xpad_led *led;
struct led_classdev *led_cdev;
int error;
- if (xpad->xtype != XTYPE_XBOX360)
+ if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
return 0;
xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
if (!led)
return -ENOMEM;
- led_no = atomic_inc_return(&led_seq);
+ xpad->led_no = atomic_inc_return(&led_seq);
- snprintf(led->name, sizeof(led->name), "xpad%lu", led_no);
+ snprintf(led->name, sizeof(led->name), "xpad%lu", xpad->led_no);
led->xpad = xpad;
led_cdev = &led->led_cdev;
@@ -934,10 +987,8 @@
return error;
}
- /*
- * Light up the segment corresponding to controller number
- */
- xpad_send_led_command(xpad, (led_no % 4) + 2);
+ /* Light up the segment corresponding to controller number */
+ xpad_identify_controller(xpad);
return 0;
}
@@ -954,6 +1005,7 @@
#else
static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
static void xpad_led_disconnect(struct usb_xpad *xpad) { }
+static void xpad_identify_controller(struct usb_xpad *xpad) { }
#endif
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 2e855e6..d2ea863 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -506,7 +506,9 @@
input_set_drvdata(input_dev, keypad);
/* Ensure that the keypad will stay dormant until opened */
- clk_prepare_enable(keypad->clk);
+ error = clk_prepare_enable(keypad->clk);
+ if (error)
+ return error;
imx_keypad_inhibit(keypad);
clk_disable_unprepare(keypad->clk);
diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c
index f1c8447..10e140a 100644
--- a/drivers/input/misc/axp20x-pek.c
+++ b/drivers/input/misc/axp20x-pek.c
@@ -167,9 +167,13 @@
struct input_dev *idev = pwr;
struct axp20x_pek *axp20x_pek = input_get_drvdata(idev);
- if (irq == axp20x_pek->irq_dbr)
+ /*
+ * The power-button is connected to ground so a falling edge (dbf)
+ * means it is pressed.
+ */
+ if (irq == axp20x_pek->irq_dbf)
input_report_key(idev, KEY_POWER, true);
- else if (irq == axp20x_pek->irq_dbf)
+ else if (irq == axp20x_pek->irq_dbr)
input_report_key(idev, KEY_POWER, false);
input_sync(idev);
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 62641f2..5b5f403 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -771,7 +771,7 @@
*/
static void elan_report_contact(struct elan_tp_data *data,
int contact_num, bool contact_valid,
- bool hover_event, u8 *finger_data)
+ u8 *finger_data)
{
struct input_dev *input = data->input;
unsigned int pos_x, pos_y;
@@ -815,9 +815,7 @@
input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
input_report_abs(input, ABS_MT_POSITION_X, pos_x);
input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y);
- input_report_abs(input, ABS_MT_DISTANCE, hover_event);
- input_report_abs(input, ABS_MT_PRESSURE,
- hover_event ? 0 : scaled_pressure);
+ input_report_abs(input, ABS_MT_PRESSURE, scaled_pressure);
input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
@@ -839,14 +837,14 @@
hover_event = hover_info & 0x40;
for (i = 0; i < ETP_MAX_FINGERS; i++) {
contact_valid = tp_info & (1U << (3 + i));
- elan_report_contact(data, i, contact_valid, hover_event,
- finger_data);
+ elan_report_contact(data, i, contact_valid, finger_data);
if (contact_valid)
finger_data += ETP_FINGER_DATA_LEN;
}
input_report_key(input, BTN_LEFT, tp_info & 0x01);
+ input_report_abs(input, ABS_DISTANCE, hover_event != 0);
input_mt_report_pointer_emulation(input, true);
input_sync(input);
}
@@ -922,6 +920,7 @@
input_abs_set_res(input, ABS_Y, data->y_res);
input_set_abs_params(input, ABS_PRESSURE, 0, ETP_MAX_PRESSURE, 0, 0);
input_set_abs_params(input, ABS_TOOL_WIDTH, 0, ETP_FINGER_WIDTH, 0, 0);
+ input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0);
/* And MT parameters */
input_set_abs_params(input, ABS_MT_POSITION_X, 0, data->max_x, 0, 0);
@@ -934,7 +933,6 @@
ETP_FINGER_WIDTH * max_width, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0,
ETP_FINGER_WIDTH * min_width, 0, 0);
- input_set_abs_params(input, ABS_MT_DISTANCE, 0, 1, 0, 0);
data->input = input;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 35c8d0c..3a32caf 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1199,7 +1199,7 @@
ABS_MT_POSITION_Y);
/* Image sensors can report per-contact pressure */
input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
- input_mt_init_slots(dev, 3, INPUT_MT_POINTER | INPUT_MT_TRACK);
+ input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
/* Image sensors can signal 4 and 5 finger clicks */
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 77833d7..200841b 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -244,6 +244,7 @@
config SERIO_ARC_PS2
tristate "ARC PS/2 support"
+ depends on HAS_IOMEM
help
Say Y here if you have an ARC FPGA platform with a PS/2
controller in it.
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index d20fe1d..a854c6e 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -658,6 +658,18 @@
To compile this driver as a module, choose M here: the
module will be called pixcir_i2c_ts.
+config TOUCHSCREEN_WDT87XX_I2C
+ tristate "Weida HiTech I2C touchscreen"
+ depends on I2C
+ help
+ Say Y here if you have a Weida WDT87XX I2C touchscreen
+ connected to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wdt87xx_i2c.
+
config TOUCHSCREEN_WM831X
tristate "Support for WM831x touchscreen controllers"
depends on MFD_WM831X
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 44deea7..fa3d33b 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -72,6 +72,7 @@
obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o
obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C) += wacom_i2c.o
+obj-$(CONFIG_TOUCHSCREEN_WDT87XX_I2C) += wdt87xx_i2c.o
obj-$(CONFIG_TOUCHSCREEN_WM831X) += wm831x-ts.o
obj-$(CONFIG_TOUCHSCREEN_WM97XX) += wm97xx-ts.o
wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index e6aef3e..394b1de 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1035,20 +1035,15 @@
input->id.bustype = BUS_I2C;
input->dev.parent = &client->dev;
- __set_bit(EV_KEY, input->evbit);
- __set_bit(EV_ABS, input->evbit);
- __set_bit(BTN_TOUCH, input->keybit);
- input_set_abs_params(input, ABS_X, 0, tsdata->num_x * 64 - 1, 0, 0);
- input_set_abs_params(input, ABS_Y, 0, tsdata->num_y * 64 - 1, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
0, tsdata->num_x * 64 - 1, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
0, tsdata->num_y * 64 - 1, 0, 0);
if (!pdata)
- touchscreen_parse_of_params(input);
+ touchscreen_parse_of_params(input, true);
- error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, 0);
+ error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, INPUT_MT_DIRECT);
if (error) {
dev_err(&client->dev, "Unable to init MT slots.\n");
return error;
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index b82b520..806cd0a 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -14,14 +14,22 @@
#include <linux/input/mt.h>
#include <linux/input/touchscreen.h>
-static u32 of_get_optional_u32(struct device_node *np,
- const char *property)
+static bool touchscreen_get_prop_u32(struct device_node *np,
+ const char *property,
+ unsigned int default_value,
+ unsigned int *value)
{
- u32 val = 0;
+ u32 val;
+ int error;
- of_property_read_u32(np, property, &val);
+ error = of_property_read_u32(np, property, &val);
+ if (error) {
+ *value = default_value;
+ return false;
+ }
- return val;
+ *value = val;
+ return true;
}
static void touchscreen_set_params(struct input_dev *dev,
@@ -54,34 +62,45 @@
* input device accordingly. The function keeps previously setuped default
* values if no value is specified via DT.
*/
-void touchscreen_parse_of_params(struct input_dev *dev)
+void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch)
{
struct device_node *np = dev->dev.parent->of_node;
- u32 maximum, fuzz;
+ unsigned int axis;
+ unsigned int maximum, fuzz;
+ bool data_present;
input_alloc_absinfo(dev);
if (!dev->absinfo)
return;
- maximum = of_get_optional_u32(np, "touchscreen-size-x");
- fuzz = of_get_optional_u32(np, "touchscreen-fuzz-x");
- if (maximum || fuzz) {
- touchscreen_set_params(dev, ABS_X, maximum, fuzz);
- touchscreen_set_params(dev, ABS_MT_POSITION_X, maximum, fuzz);
- }
+ axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
+ data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
+ input_abs_get_max(dev, axis),
+ &maximum) |
+ touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
+ input_abs_get_fuzz(dev, axis),
+ &fuzz);
+ if (data_present)
+ touchscreen_set_params(dev, axis, maximum, fuzz);
- maximum = of_get_optional_u32(np, "touchscreen-size-y");
- fuzz = of_get_optional_u32(np, "touchscreen-fuzz-y");
- if (maximum || fuzz) {
- touchscreen_set_params(dev, ABS_Y, maximum, fuzz);
- touchscreen_set_params(dev, ABS_MT_POSITION_Y, maximum, fuzz);
- }
+ axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
+ data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
+ input_abs_get_max(dev, axis),
+ &maximum) |
+ touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
+ input_abs_get_fuzz(dev, axis),
+ &fuzz);
+ if (data_present)
+ touchscreen_set_params(dev, axis, maximum, fuzz);
- maximum = of_get_optional_u32(np, "touchscreen-max-pressure");
- fuzz = of_get_optional_u32(np, "touchscreen-fuzz-pressure");
- if (maximum || fuzz) {
- touchscreen_set_params(dev, ABS_PRESSURE, maximum, fuzz);
- touchscreen_set_params(dev, ABS_MT_PRESSURE, maximum, fuzz);
- }
+ axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
+ data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",
+ input_abs_get_max(dev, axis),
+ &maximum) |
+ touchscreen_get_prop_u32(np, "touchscreen-fuzz-pressure",
+ input_abs_get_fuzz(dev, axis),
+ &fuzz);
+ if (data_present)
+ touchscreen_set_params(dev, axis, maximum, fuzz);
}
EXPORT_SYMBOL(touchscreen_parse_of_params);
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 72657c5..d8c025b 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -709,7 +709,7 @@
input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
if (np)
- touchscreen_parse_of_params(input_dev);
+ touchscreen_parse_of_params(input_dev, false);
input_dev->open = tsc2005_open;
input_dev->close = tsc2005_close;
diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
new file mode 100644
index 0000000..fb92ae1
--- /dev/null
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -0,0 +1,1149 @@
+/*
+ * Weida HiTech WDT87xx TouchScreen I2C driver
+ *
+ * Copyright (c) 2015 Weida Hi-Tech Co., Ltd.
+ * HN Chen <hn.chen@weidahitech.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ */
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/input/mt.h>
+#include <linux/acpi.h>
+#include <asm/unaligned.h>
+
+#define WDT87XX_NAME "wdt87xx_i2c"
+#define WDT87XX_DRV_VER "0.9.6"
+#define WDT87XX_FW_NAME "wdt87xx_fw.bin"
+#define WDT87XX_CFG_NAME "wdt87xx_cfg.bin"
+
+#define MODE_ACTIVE 0x01
+#define MODE_READY 0x02
+#define MODE_IDLE 0x03
+#define MODE_SLEEP 0x04
+#define MODE_STOP 0xFF
+
+#define WDT_MAX_FINGER 10
+#define WDT_RAW_BUF_COUNT 54
+#define WDT_V1_RAW_BUF_COUNT 74
+#define WDT_FIRMWARE_ID 0xa9e368f5
+
+#define PG_SIZE 0x1000
+#define MAX_RETRIES 3
+
+#define MAX_UNIT_AXIS 0x7FFF
+
+#define PKT_READ_SIZE 72
+#define PKT_WRITE_SIZE 80
+
+/* the finger definition of the report event */
+#define FINGER_EV_OFFSET_ID 0
+#define FINGER_EV_OFFSET_X 1
+#define FINGER_EV_OFFSET_Y 3
+#define FINGER_EV_SIZE 5
+
+#define FINGER_EV_V1_OFFSET_ID 0
+#define FINGER_EV_V1_OFFSET_W 1
+#define FINGER_EV_V1_OFFSET_P 2
+#define FINGER_EV_V1_OFFSET_X 3
+#define FINGER_EV_V1_OFFSET_Y 5
+#define FINGER_EV_V1_SIZE 7
+
+/* The definition of a report packet */
+#define TOUCH_PK_OFFSET_REPORT_ID 0
+#define TOUCH_PK_OFFSET_EVENT 1
+#define TOUCH_PK_OFFSET_SCAN_TIME 51
+#define TOUCH_PK_OFFSET_FNGR_NUM 53
+
+#define TOUCH_PK_V1_OFFSET_REPORT_ID 0
+#define TOUCH_PK_V1_OFFSET_EVENT 1
+#define TOUCH_PK_V1_OFFSET_SCAN_TIME 71
+#define TOUCH_PK_V1_OFFSET_FNGR_NUM 73
+
+/* The definition of the controller parameters */
+#define CTL_PARAM_OFFSET_FW_ID 0
+#define CTL_PARAM_OFFSET_PLAT_ID 2
+#define CTL_PARAM_OFFSET_XMLS_ID1 4
+#define CTL_PARAM_OFFSET_XMLS_ID2 6
+#define CTL_PARAM_OFFSET_PHY_CH_X 8
+#define CTL_PARAM_OFFSET_PHY_CH_Y 10
+#define CTL_PARAM_OFFSET_PHY_X0 12
+#define CTL_PARAM_OFFSET_PHY_X1 14
+#define CTL_PARAM_OFFSET_PHY_Y0 16
+#define CTL_PARAM_OFFSET_PHY_Y1 18
+#define CTL_PARAM_OFFSET_PHY_W 22
+#define CTL_PARAM_OFFSET_PHY_H 24
+#define CTL_PARAM_OFFSET_FACTOR 32
+
+/* Communication commands */
+#define PACKET_SIZE 56
+#define VND_REQ_READ 0x06
+#define VND_READ_DATA 0x07
+#define VND_REQ_WRITE 0x08
+
+#define VND_CMD_START 0x00
+#define VND_CMD_STOP 0x01
+#define VND_CMD_RESET 0x09
+
+#define VND_CMD_ERASE 0x1A
+
+#define VND_GET_CHECKSUM 0x66
+
+#define VND_SET_DATA 0x83
+#define VND_SET_COMMAND_DATA 0x84
+#define VND_SET_CHECKSUM_CALC 0x86
+#define VND_SET_CHECKSUM_LENGTH 0x87
+
+#define VND_CMD_SFLCK 0xFC
+#define VND_CMD_SFUNL 0xFD
+
+#define CMD_SFLCK_KEY 0xC39B
+#define CMD_SFUNL_KEY 0x95DA
+
+#define STRIDX_PLATFORM_ID 0x80
+#define STRIDX_PARAMETERS 0x81
+
+#define CMD_BUF_SIZE 8
+#define PKT_BUF_SIZE 64
+
+/* The definition of the command packet */
+#define CMD_REPORT_ID_OFFSET 0x0
+#define CMD_TYPE_OFFSET 0x1
+#define CMD_INDEX_OFFSET 0x2
+#define CMD_KEY_OFFSET 0x3
+#define CMD_LENGTH_OFFSET 0x4
+#define CMD_DATA_OFFSET 0x8
+
+/* The definition of firmware chunk tags */
+#define FOURCC_ID_RIFF 0x46464952
+#define FOURCC_ID_WHIF 0x46494857
+#define FOURCC_ID_FRMT 0x544D5246
+#define FOURCC_ID_FRWR 0x52575246
+#define FOURCC_ID_CNFG 0x47464E43
+
+#define CHUNK_ID_FRMT FOURCC_ID_FRMT
+#define CHUNK_ID_FRWR FOURCC_ID_FRWR
+#define CHUNK_ID_CNFG FOURCC_ID_CNFG
+
+#define FW_FOURCC1_OFFSET 0
+#define FW_SIZE_OFFSET 4
+#define FW_FOURCC2_OFFSET 8
+#define FW_PAYLOAD_OFFSET 40
+
+#define FW_CHUNK_ID_OFFSET 0
+#define FW_CHUNK_SIZE_OFFSET 4
+#define FW_CHUNK_TGT_START_OFFSET 8
+#define FW_CHUNK_PAYLOAD_LEN_OFFSET 12
+#define FW_CHUNK_SRC_START_OFFSET 16
+#define FW_CHUNK_VERSION_OFFSET 20
+#define FW_CHUNK_ATTR_OFFSET 24
+#define FW_CHUNK_PAYLOAD_OFFSET 32
+
+/* Controller requires minimum 300us between commands */
+#define WDT_COMMAND_DELAY_MS 2
+#define WDT_FLASH_WRITE_DELAY_MS 4
+
+struct wdt87xx_sys_param {
+ u16 fw_id;
+ u16 plat_id;
+ u16 xmls_id1;
+ u16 xmls_id2;
+ u16 phy_ch_x;
+ u16 phy_ch_y;
+ u16 phy_w;
+ u16 phy_h;
+ u16 scaling_factor;
+ u32 max_x;
+ u32 max_y;
+};
+
+struct wdt87xx_data {
+ struct i2c_client *client;
+ struct input_dev *input;
+ /* Mutex for fw update to prevent concurrent access */
+ struct mutex fw_mutex;
+ struct wdt87xx_sys_param param;
+ u8 phys[32];
+};
+
+static int wdt87xx_i2c_xfer(struct i2c_client *client,
+ void *txdata, size_t txlen,
+ void *rxdata, size_t rxlen)
+{
+ struct i2c_msg msgs[] = {
+ {
+ .addr = client->addr,
+ .flags = 0,
+ .len = txlen,
+ .buf = txdata,
+ },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = rxlen,
+ .buf = rxdata,
+ },
+ };
+ int error;
+ int ret;
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs)) {
+ error = ret < 0 ? ret : -EIO;
+ dev_err(&client->dev, "%s: i2c transfer failed: %d\n",
+ __func__, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_get_string(struct i2c_client *client, u8 str_idx,
+ u8 *buf, size_t len)
+{
+ u8 tx_buf[] = { 0x22, 0x00, 0x13, 0x0E, str_idx, 0x23, 0x00 };
+ u8 rx_buf[PKT_WRITE_SIZE];
+ size_t rx_len = len + 2;
+ int error;
+
+ if (rx_len > sizeof(rx_buf))
+ return -EINVAL;
+
+ error = wdt87xx_i2c_xfer(client, tx_buf, sizeof(tx_buf),
+ rx_buf, rx_len);
+ if (error) {
+ dev_err(&client->dev, "get string failed: %d\n", error);
+ return error;
+ }
+
+ if (rx_buf[1] != 0x03) {
+ dev_err(&client->dev, "unexpected response to get string: %d\n",
+ rx_buf[1]);
+ return -EINVAL;
+ }
+
+ rx_len = min_t(size_t, len, rx_buf[0]);
+ memcpy(buf, &rx_buf[2], rx_len);
+
+ mdelay(WDT_COMMAND_DELAY_MS);
+
+ return 0;
+}
+
+static int wdt87xx_get_feature(struct i2c_client *client,
+ u8 *buf, size_t buf_size)
+{
+ u8 tx_buf[8];
+ u8 rx_buf[PKT_WRITE_SIZE];
+ size_t tx_len = 0;
+ size_t rx_len = buf_size + 2;
+ int error;
+
+ if (rx_len > sizeof(rx_buf))
+ return -EINVAL;
+
+ /* Get feature command packet */
+ tx_buf[tx_len++] = 0x22;
+ tx_buf[tx_len++] = 0x00;
+ if (buf[CMD_REPORT_ID_OFFSET] > 0xF) {
+ tx_buf[tx_len++] = 0x30;
+ tx_buf[tx_len++] = 0x02;
+ tx_buf[tx_len++] = buf[CMD_REPORT_ID_OFFSET];
+ } else {
+ tx_buf[tx_len++] = 0x30 | buf[CMD_REPORT_ID_OFFSET];
+ tx_buf[tx_len++] = 0x02;
+ }
+ tx_buf[tx_len++] = 0x23;
+ tx_buf[tx_len++] = 0x00;
+
+ error = wdt87xx_i2c_xfer(client, tx_buf, tx_len, rx_buf, rx_len);
+ if (error) {
+ dev_err(&client->dev, "get feature failed: %d\n", error);
+ return error;
+ }
+
+ rx_len = min_t(size_t, buf_size, get_unaligned_le16(rx_buf));
+ memcpy(buf, &rx_buf[2], rx_len);
+
+ mdelay(WDT_COMMAND_DELAY_MS);
+
+ return 0;
+}
+
+static int wdt87xx_set_feature(struct i2c_client *client,
+ const u8 *buf, size_t buf_size)
+{
+ u8 tx_buf[PKT_WRITE_SIZE];
+ int tx_len = 0;
+ int error;
+
+ /* Set feature command packet */
+ tx_buf[tx_len++] = 0x22;
+ tx_buf[tx_len++] = 0x00;
+ if (buf[CMD_REPORT_ID_OFFSET] > 0xF) {
+ tx_buf[tx_len++] = 0x30;
+ tx_buf[tx_len++] = 0x03;
+ tx_buf[tx_len++] = buf[CMD_REPORT_ID_OFFSET];
+ } else {
+ tx_buf[tx_len++] = 0x30 | buf[CMD_REPORT_ID_OFFSET];
+ tx_buf[tx_len++] = 0x03;
+ }
+ tx_buf[tx_len++] = 0x23;
+ tx_buf[tx_len++] = 0x00;
+ tx_buf[tx_len++] = (buf_size & 0xFF);
+ tx_buf[tx_len++] = ((buf_size & 0xFF00) >> 8);
+
+ if (tx_len + buf_size > sizeof(tx_buf))
+ return -EINVAL;
+
+ memcpy(&tx_buf[tx_len], buf, buf_size);
+ tx_len += buf_size;
+
+ error = i2c_master_send(client, tx_buf, tx_len);
+ if (error < 0) {
+ dev_err(&client->dev, "set feature failed: %d\n", error);
+ return error;
+ }
+
+ mdelay(WDT_COMMAND_DELAY_MS);
+
+ return 0;
+}
+
+static int wdt87xx_send_command(struct i2c_client *client, int cmd, int value)
+{
+ u8 cmd_buf[CMD_BUF_SIZE];
+
+ /* Set the command packet */
+ cmd_buf[CMD_REPORT_ID_OFFSET] = VND_REQ_WRITE;
+ cmd_buf[CMD_TYPE_OFFSET] = VND_SET_COMMAND_DATA;
+ put_unaligned_le16((u16)cmd, &cmd_buf[CMD_INDEX_OFFSET]);
+
+ switch (cmd) {
+ case VND_CMD_START:
+ case VND_CMD_STOP:
+ case VND_CMD_RESET:
+ /* Mode selector */
+ put_unaligned_le32((value & 0xFF), &cmd_buf[CMD_LENGTH_OFFSET]);
+ break;
+
+ case VND_CMD_SFLCK:
+ put_unaligned_le16(CMD_SFLCK_KEY, &cmd_buf[CMD_KEY_OFFSET]);
+ break;
+
+ case VND_CMD_SFUNL:
+ put_unaligned_le16(CMD_SFUNL_KEY, &cmd_buf[CMD_KEY_OFFSET]);
+ break;
+
+ case VND_CMD_ERASE:
+ case VND_SET_CHECKSUM_CALC:
+ case VND_SET_CHECKSUM_LENGTH:
+ put_unaligned_le32(value, &cmd_buf[CMD_KEY_OFFSET]);
+ break;
+
+ default:
+ cmd_buf[CMD_REPORT_ID_OFFSET] = 0;
+ dev_err(&client->dev, "Invalid command: %d\n", cmd);
+ return -EINVAL;
+ }
+
+ return wdt87xx_set_feature(client, cmd_buf, sizeof(cmd_buf));
+}
+
+static int wdt87xx_sw_reset(struct i2c_client *client)
+{
+ int error;
+
+ dev_dbg(&client->dev, "resetting device now\n");
+
+ error = wdt87xx_send_command(client, VND_CMD_RESET, 0);
+ if (error) {
+ dev_err(&client->dev, "reset failed\n");
+ return error;
+ }
+
+ /* Wait the device to be ready */
+ msleep(200);
+
+ return 0;
+}
+
+static const void *wdt87xx_get_fw_chunk(const struct firmware *fw, u32 id)
+{
+ size_t pos = FW_PAYLOAD_OFFSET;
+ u32 chunk_id, chunk_size;
+
+ while (pos < fw->size) {
+ chunk_id = get_unaligned_le32(fw->data +
+ pos + FW_CHUNK_ID_OFFSET);
+ if (chunk_id == id)
+ return fw->data + pos;
+
+ chunk_size = get_unaligned_le32(fw->data +
+ pos + FW_CHUNK_SIZE_OFFSET);
+ pos += chunk_size + 2 * sizeof(u32); /* chunk ID + size */
+ }
+
+ return NULL;
+}
+
+static int wdt87xx_get_sysparam(struct i2c_client *client,
+ struct wdt87xx_sys_param *param)
+{
+ u8 buf[PKT_READ_SIZE];
+ int error;
+
+ error = wdt87xx_get_string(client, STRIDX_PARAMETERS, buf, 34);
+ if (error) {
+ dev_err(&client->dev, "failed to get parameters\n");
+ return error;
+ }
+
+ param->xmls_id1 = get_unaligned_le16(buf + CTL_PARAM_OFFSET_XMLS_ID1);
+ param->xmls_id2 = get_unaligned_le16(buf + CTL_PARAM_OFFSET_XMLS_ID2);
+ param->phy_ch_x = get_unaligned_le16(buf + CTL_PARAM_OFFSET_PHY_CH_X);
+ param->phy_ch_y = get_unaligned_le16(buf + CTL_PARAM_OFFSET_PHY_CH_Y);
+ param->phy_w = get_unaligned_le16(buf + CTL_PARAM_OFFSET_PHY_W) / 10;
+ param->phy_h = get_unaligned_le16(buf + CTL_PARAM_OFFSET_PHY_H) / 10;
+
+ /* Get the scaling factor of pixel to logical coordinate */
+ param->scaling_factor =
+ get_unaligned_le16(buf + CTL_PARAM_OFFSET_FACTOR);
+
+ param->max_x = MAX_UNIT_AXIS;
+ param->max_y = DIV_ROUND_CLOSEST(MAX_UNIT_AXIS * param->phy_h,
+ param->phy_w);
+
+ error = wdt87xx_get_string(client, STRIDX_PLATFORM_ID, buf, 8);
+ if (error) {
+ dev_err(&client->dev, "failed to get platform id\n");
+ return error;
+ }
+
+ param->plat_id = buf[1];
+
+ buf[0] = 0xf2;
+ error = wdt87xx_get_feature(client, buf, 16);
+ if (error) {
+ dev_err(&client->dev, "failed to get firmware id\n");
+ return error;
+ }
+
+ if (buf[0] != 0xf2) {
+ dev_err(&client->dev, "wrong id of fw response: 0x%x\n",
+ buf[0]);
+ return -EINVAL;
+ }
+
+ param->fw_id = get_unaligned_le16(&buf[1]);
+
+ dev_info(&client->dev,
+ "fw_id: 0x%x, plat_id: 0x%x, xml_id1: %04x, xml_id2: %04x\n",
+ param->fw_id, param->plat_id,
+ param->xmls_id1, param->xmls_id2);
+
+ return 0;
+}
+
+static int wdt87xx_validate_firmware(struct wdt87xx_data *wdt,
+ const struct firmware *fw)
+{
+ const void *fw_chunk;
+ u32 data1, data2;
+ u32 size;
+ u8 fw_chip_id;
+ u8 chip_id;
+
+ data1 = get_unaligned_le32(fw->data + FW_FOURCC1_OFFSET);
+ data2 = get_unaligned_le32(fw->data + FW_FOURCC2_OFFSET);
+ if (data1 != FOURCC_ID_RIFF || data2 != FOURCC_ID_WHIF) {
+ dev_err(&wdt->client->dev, "check fw tag failed\n");
+ return -EINVAL;
+ }
+
+ size = get_unaligned_le32(fw->data + FW_SIZE_OFFSET);
+ if (size != fw->size) {
+ dev_err(&wdt->client->dev,
+ "fw size mismatch: expected %d, actual %zu\n",
+ size, fw->size);
+ return -EINVAL;
+ }
+
+ /*
+ * Get the chip_id from the firmware. Make sure that it is the
+ * right controller to do the firmware and config update.
+ */
+ fw_chunk = wdt87xx_get_fw_chunk(fw, CHUNK_ID_FRWR);
+ if (!fw_chunk) {
+ dev_err(&wdt->client->dev,
+ "unable to locate firmware chunk\n");
+ return -EINVAL;
+ }
+
+ fw_chip_id = (get_unaligned_le32(fw_chunk +
+ FW_CHUNK_VERSION_OFFSET) >> 12) & 0xF;
+ chip_id = (wdt->param.fw_id >> 12) & 0xF;
+
+ if (fw_chip_id != chip_id) {
+ dev_err(&wdt->client->dev,
+ "fw version mismatch: fw %d vs. chip %d\n",
+ fw_chip_id, chip_id);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_validate_fw_chunk(const void *data, int id)
+{
+ if (id == CHUNK_ID_FRWR) {
+ u32 fw_id;
+
+ fw_id = get_unaligned_le32(data + FW_CHUNK_PAYLOAD_OFFSET);
+ if (fw_id != WDT_FIRMWARE_ID)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_write_data(struct i2c_client *client, const char *data,
+ u32 address, int length)
+{
+ u16 packet_size;
+ int count = 0;
+ int error;
+ u8 pkt_buf[PKT_BUF_SIZE];
+
+ /* Address and length should be 4 bytes aligned */
+ if ((address & 0x3) != 0 || (length & 0x3) != 0) {
+ dev_err(&client->dev,
+ "addr & len must be 4 bytes aligned %x, %x\n",
+ address, length);
+ return -EINVAL;
+ }
+
+ while (length) {
+ packet_size = min(length, PACKET_SIZE);
+
+ pkt_buf[CMD_REPORT_ID_OFFSET] = VND_REQ_WRITE;
+ pkt_buf[CMD_TYPE_OFFSET] = VND_SET_DATA;
+ put_unaligned_le16(packet_size, &pkt_buf[CMD_INDEX_OFFSET]);
+ put_unaligned_le32(address, &pkt_buf[CMD_LENGTH_OFFSET]);
+ memcpy(&pkt_buf[CMD_DATA_OFFSET], data, packet_size);
+
+ error = wdt87xx_set_feature(client, pkt_buf, sizeof(pkt_buf));
+ if (error)
+ return error;
+
+ length -= packet_size;
+ data += packet_size;
+ address += packet_size;
+
+ /* Wait for the controller to finish the write */
+ mdelay(WDT_FLASH_WRITE_DELAY_MS);
+
+ if ((++count % 32) == 0) {
+ /* Delay for fw to clear watch dog */
+ msleep(20);
+ }
+ }
+
+ return 0;
+}
+
+static u16 misr(u16 cur_value, u8 new_value)
+{
+ u32 a, b;
+ u32 bit0;
+ u32 y;
+
+ a = cur_value;
+ b = new_value;
+ bit0 = a ^ (b & 1);
+ bit0 ^= a >> 1;
+ bit0 ^= a >> 2;
+ bit0 ^= a >> 4;
+ bit0 ^= a >> 5;
+ bit0 ^= a >> 7;
+ bit0 ^= a >> 11;
+ bit0 ^= a >> 15;
+ y = (a << 1) ^ b;
+ y = (y & ~1) | (bit0 & 1);
+
+ return (u16)y;
+}
+
+static u16 wdt87xx_calculate_checksum(const u8 *data, size_t length)
+{
+ u16 checksum = 0;
+ size_t i;
+
+ for (i = 0; i < length; i++)
+ checksum = misr(checksum, data[i]);
+
+ return checksum;
+}
+
+static int wdt87xx_get_checksum(struct i2c_client *client, u16 *checksum,
+ u32 address, int length)
+{
+ int error;
+ int time_delay;
+ u8 pkt_buf[PKT_BUF_SIZE];
+ u8 cmd_buf[CMD_BUF_SIZE];
+
+ error = wdt87xx_send_command(client, VND_SET_CHECKSUM_LENGTH, length);
+ if (error) {
+ dev_err(&client->dev, "failed to set checksum length\n");
+ return error;
+ }
+
+ error = wdt87xx_send_command(client, VND_SET_CHECKSUM_CALC, address);
+ if (error) {
+ dev_err(&client->dev, "failed to set checksum address\n");
+ return error;
+ }
+
+ /* Wait the operation to complete */
+ time_delay = DIV_ROUND_UP(length, 1024);
+ msleep(time_delay * 30);
+
+ memset(cmd_buf, 0, sizeof(cmd_buf));
+ cmd_buf[CMD_REPORT_ID_OFFSET] = VND_REQ_READ;
+ cmd_buf[CMD_TYPE_OFFSET] = VND_GET_CHECKSUM;
+ error = wdt87xx_set_feature(client, cmd_buf, sizeof(cmd_buf));
+ if (error) {
+ dev_err(&client->dev, "failed to request checksum\n");
+ return error;
+ }
+
+ memset(pkt_buf, 0, sizeof(pkt_buf));
+ pkt_buf[CMD_REPORT_ID_OFFSET] = VND_READ_DATA;
+ error = wdt87xx_get_feature(client, pkt_buf, sizeof(pkt_buf));
+ if (error) {
+ dev_err(&client->dev, "failed to read checksum\n");
+ return error;
+ }
+
+ *checksum = get_unaligned_le16(&pkt_buf[CMD_DATA_OFFSET]);
+ return 0;
+}
+
+static int wdt87xx_write_firmware(struct i2c_client *client, const void *chunk)
+{
+ u32 start_addr = get_unaligned_le32(chunk + FW_CHUNK_TGT_START_OFFSET);
+ u32 size = get_unaligned_le32(chunk + FW_CHUNK_PAYLOAD_LEN_OFFSET);
+ const void *data = chunk + FW_CHUNK_PAYLOAD_OFFSET;
+ int error;
+ int err1;
+ int page_size;
+ int retry = 0;
+ u16 device_checksum, firmware_checksum;
+
+ dev_dbg(&client->dev, "start 4k page program\n");
+
+ error = wdt87xx_send_command(client, VND_CMD_STOP, MODE_STOP);
+ if (error) {
+ dev_err(&client->dev, "stop report mode failed\n");
+ return error;
+ }
+
+ error = wdt87xx_send_command(client, VND_CMD_SFUNL, 0);
+ if (error) {
+ dev_err(&client->dev, "unlock failed\n");
+ goto out_enable_reporting;
+ }
+
+ mdelay(10);
+
+ while (size) {
+ dev_dbg(&client->dev, "%s: %x, %x\n", __func__,
+ start_addr, size);
+
+ page_size = min_t(u32, size, PG_SIZE);
+ size -= page_size;
+
+ for (retry = 0; retry < MAX_RETRIES; retry++) {
+ error = wdt87xx_send_command(client, VND_CMD_ERASE,
+ start_addr);
+ if (error) {
+ dev_err(&client->dev,
+ "erase failed at %#08x\n", start_addr);
+ break;
+ }
+
+ msleep(50);
+
+ error = wdt87xx_write_data(client, data, start_addr,
+ page_size);
+ if (error) {
+ dev_err(&client->dev,
+ "write failed at %#08x (%d bytes)\n",
+ start_addr, page_size);
+ break;
+ }
+
+ error = wdt87xx_get_checksum(client, &device_checksum,
+ start_addr, page_size);
+ if (error) {
+ dev_err(&client->dev,
+ "failed to retrieve checksum for %#08x (len: %d)\n",
+ start_addr, page_size);
+ break;
+ }
+
+ firmware_checksum =
+ wdt87xx_calculate_checksum(data, page_size);
+
+ if (device_checksum == firmware_checksum)
+ break;
+
+ dev_err(&client->dev,
+ "checksum fail: %d vs %d, retry %d\n",
+ device_checksum, firmware_checksum, retry);
+ }
+
+ if (retry == MAX_RETRIES) {
+ dev_err(&client->dev, "page write failed\n");
+ error = -EIO;
+ goto out_lock_device;
+ }
+
+ start_addr = start_addr + page_size;
+ data = data + page_size;
+ }
+
+out_lock_device:
+ err1 = wdt87xx_send_command(client, VND_CMD_SFLCK, 0);
+ if (err1)
+ dev_err(&client->dev, "lock failed\n");
+
+ mdelay(10);
+
+out_enable_reporting:
+ err1 = wdt87xx_send_command(client, VND_CMD_START, 0);
+ if (err1)
+ dev_err(&client->dev, "start to report failed\n");
+
+ return error ? error : err1;
+}
+
+static int wdt87xx_load_chunk(struct i2c_client *client,
+ const struct firmware *fw, u32 ck_id)
+{
+ const void *chunk;
+ int error;
+
+ chunk = wdt87xx_get_fw_chunk(fw, ck_id);
+ if (!chunk) {
+ dev_err(&client->dev, "unable to locate chunk (type %d)\n",
+ ck_id);
+ return -EINVAL;
+ }
+
+ error = wdt87xx_validate_fw_chunk(chunk, ck_id);
+ if (error) {
+ dev_err(&client->dev, "invalid chunk (type %d): %d\n",
+ ck_id, error);
+ return error;
+ }
+
+ error = wdt87xx_write_firmware(client, chunk);
+ if (error) {
+ dev_err(&client->dev,
+ "failed to write fw chunk (type %d): %d\n",
+ ck_id, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_do_update_firmware(struct i2c_client *client,
+ const struct firmware *fw,
+ unsigned int chunk_id)
+{
+ struct wdt87xx_data *wdt = i2c_get_clientdata(client);
+ int error;
+
+ error = wdt87xx_validate_firmware(wdt, fw);
+ if (error)
+ return error;
+
+ error = mutex_lock_interruptible(&wdt->fw_mutex);
+ if (error)
+ return error;
+
+ disable_irq(client->irq);
+
+ error = wdt87xx_load_chunk(client, fw, chunk_id);
+ if (error) {
+ dev_err(&client->dev,
+ "firmware load failed (type: %d): %d\n",
+ chunk_id, error);
+ goto out;
+ }
+
+ error = wdt87xx_sw_reset(client);
+ if (error) {
+ dev_err(&client->dev, "soft reset failed: %d\n", error);
+ goto out;
+ }
+
+ /* Refresh the parameters */
+ error = wdt87xx_get_sysparam(client, &wdt->param);
+ if (error)
+ dev_err(&client->dev,
+ "failed to refresh system paramaters: %d\n", error);
+out:
+ enable_irq(client->irq);
+ mutex_unlock(&wdt->fw_mutex);
+
+ return error ? error : 0;
+}
+
+static int wdt87xx_update_firmware(struct device *dev,
+ const char *fw_name, unsigned int chunk_id)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ const struct firmware *fw;
+ int error;
+
+ error = request_firmware(&fw, fw_name, dev);
+ if (error) {
+ dev_err(&client->dev, "unable to retrieve firmware %s: %d\n",
+ fw_name, error);
+ return error;
+ }
+
+ error = wdt87xx_do_update_firmware(client, fw, chunk_id);
+
+ release_firmware(fw);
+
+ return error ? error : 0;
+}
+
+static ssize_t config_csum_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct wdt87xx_data *wdt = i2c_get_clientdata(client);
+ u32 cfg_csum;
+
+ cfg_csum = wdt->param.xmls_id1;
+ cfg_csum = (cfg_csum << 16) | wdt->param.xmls_id2;
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", cfg_csum);
+}
+
+static ssize_t fw_version_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct wdt87xx_data *wdt = i2c_get_clientdata(client);
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", wdt->param.fw_id);
+}
+
+static ssize_t plat_id_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct wdt87xx_data *wdt = i2c_get_clientdata(client);
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", wdt->param.plat_id);
+}
+
+static ssize_t update_config_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int error;
+
+ error = wdt87xx_update_firmware(dev, WDT87XX_CFG_NAME, CHUNK_ID_CNFG);
+
+ return error ? error : count;
+}
+
+static ssize_t update_fw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int error;
+
+ error = wdt87xx_update_firmware(dev, WDT87XX_FW_NAME, CHUNK_ID_FRWR);
+
+ return error ? error : count;
+}
+
+static DEVICE_ATTR_RO(config_csum);
+static DEVICE_ATTR_RO(fw_version);
+static DEVICE_ATTR_RO(plat_id);
+static DEVICE_ATTR_WO(update_config);
+static DEVICE_ATTR_WO(update_fw);
+
+static struct attribute *wdt87xx_attrs[] = {
+ &dev_attr_config_csum.attr,
+ &dev_attr_fw_version.attr,
+ &dev_attr_plat_id.attr,
+ &dev_attr_update_config.attr,
+ &dev_attr_update_fw.attr,
+ NULL
+};
+
+static const struct attribute_group wdt87xx_attr_group = {
+ .attrs = wdt87xx_attrs,
+};
+
+static void wdt87xx_report_contact(struct input_dev *input,
+ struct wdt87xx_sys_param *param,
+ u8 *buf)
+{
+ int finger_id;
+ u32 x, y, w;
+ u8 p;
+
+ finger_id = (buf[FINGER_EV_V1_OFFSET_ID] >> 3) - 1;
+ if (finger_id < 0)
+ return;
+
+ /* Check if this is an active contact */
+ if (!(buf[FINGER_EV_V1_OFFSET_ID] & 0x1))
+ return;
+
+ w = buf[FINGER_EV_V1_OFFSET_W];
+ w *= param->scaling_factor;
+
+ p = buf[FINGER_EV_V1_OFFSET_P];
+
+ x = get_unaligned_le16(buf + FINGER_EV_V1_OFFSET_X);
+
+ y = get_unaligned_le16(buf + FINGER_EV_V1_OFFSET_Y);
+ y = DIV_ROUND_CLOSEST(y * param->phy_h, param->phy_w);
+
+ /* Refuse incorrect coordinates */
+ if (x > param->max_x || y > param->max_y)
+ return;
+
+ dev_dbg(input->dev.parent, "tip on (%d), x(%d), y(%d)\n",
+ finger_id, x, y);
+
+ input_mt_slot(input, finger_id);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, 1);
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR, w);
+ input_report_abs(input, ABS_MT_PRESSURE, p);
+ input_report_abs(input, ABS_MT_POSITION_X, x);
+ input_report_abs(input, ABS_MT_POSITION_Y, y);
+}
+
+static irqreturn_t wdt87xx_ts_interrupt(int irq, void *dev_id)
+{
+ struct wdt87xx_data *wdt = dev_id;
+ struct i2c_client *client = wdt->client;
+ int i, fingers;
+ int error;
+ u8 raw_buf[WDT_V1_RAW_BUF_COUNT] = {0};
+
+ error = i2c_master_recv(client, raw_buf, WDT_V1_RAW_BUF_COUNT);
+ if (error < 0) {
+ dev_err(&client->dev, "read v1 raw data failed: %d\n", error);
+ goto irq_exit;
+ }
+
+ fingers = raw_buf[TOUCH_PK_V1_OFFSET_FNGR_NUM];
+ if (!fingers)
+ goto irq_exit;
+
+ for (i = 0; i < WDT_MAX_FINGER; i++)
+ wdt87xx_report_contact(wdt->input,
+ &wdt->param,
+ &raw_buf[TOUCH_PK_V1_OFFSET_EVENT +
+ i * FINGER_EV_V1_SIZE]);
+
+ input_mt_sync_frame(wdt->input);
+ input_sync(wdt->input);
+
+irq_exit:
+ return IRQ_HANDLED;
+}
+
+static int wdt87xx_ts_create_input_device(struct wdt87xx_data *wdt)
+{
+ struct device *dev = &wdt->client->dev;
+ struct input_dev *input;
+ unsigned int res = DIV_ROUND_CLOSEST(MAX_UNIT_AXIS, wdt->param.phy_w);
+ int error;
+
+ input = devm_input_allocate_device(dev);
+ if (!input) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+ wdt->input = input;
+
+ input->name = "WDT87xx Touchscreen";
+ input->id.bustype = BUS_I2C;
+ input->phys = wdt->phys;
+
+ input_set_abs_params(input, ABS_MT_POSITION_X, 0,
+ wdt->param.max_x, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
+ wdt->param.max_y, 0, 0);
+ input_abs_set_res(input, ABS_MT_POSITION_X, res);
+ input_abs_set_res(input, ABS_MT_POSITION_Y, res);
+
+ input_set_abs_params(input, ABS_MT_TOUCH_MAJOR,
+ 0, wdt->param.max_x, 0, 0);
+ input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xFF, 0, 0);
+
+ input_mt_init_slots(input, WDT_MAX_FINGER,
+ INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(dev, "failed to register input device: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct wdt87xx_data *wdt;
+ int error;
+
+ dev_dbg(&client->dev, "adapter=%d, client irq: %d\n",
+ client->adapter->nr, client->irq);
+
+ /* Check if the I2C function is ok in this adaptor */
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+ return -ENXIO;
+
+ wdt = devm_kzalloc(&client->dev, sizeof(*wdt), GFP_KERNEL);
+ if (!wdt)
+ return -ENOMEM;
+
+ wdt->client = client;
+ mutex_init(&wdt->fw_mutex);
+ i2c_set_clientdata(client, wdt);
+
+ snprintf(wdt->phys, sizeof(wdt->phys), "i2c-%u-%04x/input0",
+ client->adapter->nr, client->addr);
+
+ error = wdt87xx_get_sysparam(client, &wdt->param);
+ if (error)
+ return error;
+
+ error = wdt87xx_ts_create_input_device(wdt);
+ if (error)
+ return error;
+
+ error = devm_request_threaded_irq(&client->dev, client->irq,
+ NULL, wdt87xx_ts_interrupt,
+ IRQF_ONESHOT,
+ client->name, wdt);
+ if (error) {
+ dev_err(&client->dev, "request irq failed: %d\n", error);
+ return error;
+ }
+
+ error = sysfs_create_group(&client->dev.kobj, &wdt87xx_attr_group);
+ if (error) {
+ dev_err(&client->dev, "create sysfs failed: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int wdt87xx_ts_remove(struct i2c_client *client)
+{
+ sysfs_remove_group(&client->dev.kobj, &wdt87xx_attr_group);
+
+ return 0;
+}
+
+static int __maybe_unused wdt87xx_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int error;
+
+ disable_irq(client->irq);
+
+ error = wdt87xx_send_command(client, VND_CMD_STOP, MODE_IDLE);
+ if (error) {
+ enable_irq(client->irq);
+ dev_err(&client->dev,
+ "failed to stop device when suspending: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused wdt87xx_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int error;
+
+ /*
+ * The chip may have been reset while system is resuming,
+ * give it some time to settle.
+ */
+ mdelay(100);
+
+ error = wdt87xx_send_command(client, VND_CMD_START, 0);
+ if (error)
+ dev_err(&client->dev,
+ "failed to start device when resuming: %d\n",
+ error);
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(wdt87xx_pm_ops, wdt87xx_suspend, wdt87xx_resume);
+
+static const struct i2c_device_id wdt87xx_dev_id[] = {
+ { WDT87XX_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wdt87xx_dev_id);
+
+static const struct acpi_device_id wdt87xx_acpi_id[] = {
+ { "WDHT0001", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, wdt87xx_acpi_id);
+
+static struct i2c_driver wdt87xx_driver = {
+ .probe = wdt87xx_ts_probe,
+ .remove = wdt87xx_ts_remove,
+ .id_table = wdt87xx_dev_id,
+ .driver = {
+ .name = WDT87XX_NAME,
+ .pm = &wdt87xx_pm_ops,
+ .acpi_match_table = ACPI_PTR(wdt87xx_acpi_id),
+ },
+};
+module_i2c_driver(wdt87xx_driver);
+
+MODULE_AUTHOR("HN Chen <hn.chen@weidahitech.com>");
+MODULE_DESCRIPTION("WeidaHiTech WDT87XX Touchscreen driver");
+MODULE_VERSION(WDT87XX_DRV_VER);
+MODULE_LICENSE("GPL");
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 8d7e1c8..4dd8826 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1055,7 +1055,7 @@
processor = (struct acpi_madt_generic_interrupt *)header;
- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;
/*
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 4400edd..b7d54d4 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -257,16 +257,6 @@
return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
}
- /*
- * Some cores claim the FDC is routable but it doesn't actually seem to
- * be connected.
- */
- switch (current_cpu_type()) {
- case CPU_INTERAPTIV:
- case CPU_PROAPTIV:
- return -1;
- }
-
return irq_create_mapping(gic_irq_domain,
GIC_LOCAL_TO_HWIRQ(GIC_LOCAL_INT_FDC));
}
diff --git a/drivers/irqchip/irqchip.h b/drivers/irqchip/irqchip.h
index 0f6486d..0f67ae3 100644
--- a/drivers/irqchip/irqchip.h
+++ b/drivers/irqchip/irqchip.h
@@ -8,21 +8,4 @@
* warranty of any kind, whether express or implied.
*/
-#ifndef _IRQCHIP_H
-#define _IRQCHIP_H
-
-#include <linux/of.h>
-
-/*
- * This macro must be used by the different irqchip drivers to declare
- * the association between their DT compatible string and their
- * initialization function.
- *
- * @name: name that must be unique accross all IRQCHIP_DECLARE of the
- * same file.
- * @compstr: compatible string of the irqchip driver
- * @fn: initialization function
- */
-#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
-
-#endif
+#include <linux/irqchip.h>
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 8c91fd5..375be50 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -524,9 +524,18 @@
cs->hw.ser->tty = tty;
atomic_set(&cs->hw.ser->refcnt, 1);
init_completion(&cs->hw.ser->dead_cmp);
-
tty->disc_data = cs;
+ /* Set the amount of data we're willing to receive per call
+ * from the hardware driver to half of the input buffer size
+ * to leave some reserve.
+ * Note: We don't do flow control towards the hardware driver.
+ * If more data is received than will fit into the input buffer,
+ * it will be dropped and an error will be logged. This should
+ * never happen as the device is slow and the buffer size ample.
+ */
+ tty->receive_room = RBUFSIZE/2;
+
/* OK.. Initialization of the datastructures and the HW is done.. Now
* startup system and notify the LL that we are ready to run
*/
@@ -598,28 +607,6 @@
}
/*
- * Read on the tty.
- * Unused, received data goes only to the Gigaset driver.
- */
-static ssize_t
-gigaset_tty_read(struct tty_struct *tty, struct file *file,
- unsigned char __user *buf, size_t count)
-{
- return -EAGAIN;
-}
-
-/*
- * Write on the tty.
- * Unused, transmit data comes only from the Gigaset driver.
- */
-static ssize_t
-gigaset_tty_write(struct tty_struct *tty, struct file *file,
- const unsigned char *buf, size_t count)
-{
- return -EAGAIN;
-}
-
-/*
* Ioctl on the tty.
* Called in process context only.
* May be re-entered by multiple ioctl calling threads.
@@ -752,8 +739,6 @@
.open = gigaset_tty_open,
.close = gigaset_tty_close,
.hangup = gigaset_tty_hangup,
- .read = gigaset_tty_read,
- .write = gigaset_tty_write,
.ioctl = gigaset_tty_ioctl,
.receive_buf = gigaset_tty_receive,
.write_wakeup = gigaset_tty_wakeup,
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 135a090..ed2346d 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -839,7 +839,7 @@
if (bitmap->storage.file) {
path = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (path)
- ptr = d_path(&bitmap->storage.file->f_path,
+ ptr = file_path(bitmap->storage.file,
path, PAGE_SIZE);
printk(KERN_ALERT
@@ -1927,7 +1927,7 @@
chunk_kb ? "KB" : "B");
if (bitmap->storage.file) {
seq_printf(seq, ", file: ");
- seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
+ seq_file_path(seq, bitmap->storage.file, " \t\n");
}
seq_printf(seq, "\n");
diff --git a/drivers/md/md.c b/drivers/md/md.c
index df92d30..d429c30 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5766,7 +5766,7 @@
/* bitmap disabled, zero the first byte and copy out */
if (!mddev->bitmap_info.file)
file->pathname[0] = '\0';
- else if ((ptr = d_path(&mddev->bitmap_info.file->f_path,
+ else if ((ptr = file_path(mddev->bitmap_info.file,
file->pathname, sizeof(file->pathname))),
IS_ERR(ptr))
err = PTR_ERR(ptr);
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 8911e51..3a27a84 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -2074,14 +2074,8 @@
ret = gpmc_probe_nand_child(pdev, child);
else if (of_node_cmp(child->name, "onenand") == 0)
ret = gpmc_probe_onenand_child(pdev, child);
- else if (of_node_cmp(child->name, "ethernet") == 0 ||
- of_node_cmp(child->name, "nor") == 0 ||
- of_node_cmp(child->name, "uart") == 0)
+ else
ret = gpmc_probe_generic_child(pdev, child);
-
- if (WARN(ret < 0, "%s: probing gpmc child %s failed\n",
- __func__, child->full_name))
- of_node_put(child);
}
return 0;
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 0c77240..729e085 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -23,6 +23,7 @@
afu = cxl_pci_to_afu(dev);
+ get_device(&afu->dev);
ctx = cxl_context_alloc();
if (IS_ERR(ctx))
return ctx;
@@ -31,6 +32,7 @@
rc = cxl_context_init(ctx, afu, false, NULL);
if (rc) {
kfree(ctx);
+ put_device(&afu->dev);
return ERR_PTR(-ENOMEM);
}
cxl_assign_psn_space(ctx);
@@ -60,6 +62,8 @@
if (ctx->status != CLOSED)
return -EBUSY;
+ put_device(&ctx->afu->dev);
+
cxl_context_free(ctx);
return 0;
@@ -159,7 +163,6 @@
}
ctx->status = STARTED;
- get_device(&ctx->afu->dev);
out:
mutex_unlock(&ctx->status_mutex);
return rc;
@@ -175,12 +178,7 @@
/* Stop a context. Returns 0 on success, otherwise -Errno */
int cxl_stop_context(struct cxl_context *ctx)
{
- int rc;
-
- rc = __detach_context(ctx);
- if (!rc)
- put_device(&ctx->afu->dev);
- return rc;
+ return __detach_context(ctx);
}
EXPORT_SYMBOL_GPL(cxl_stop_context);
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index 2a4c80a..1287148 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -113,11 +113,11 @@
if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
area = ctx->afu->psn_phys;
- if (offset > ctx->afu->adapter->ps_size)
+ if (offset >= ctx->afu->adapter->ps_size)
return VM_FAULT_SIGBUS;
} else {
area = ctx->psn_phys;
- if (offset > ctx->psn_size)
+ if (offset >= ctx->psn_size)
return VM_FAULT_SIGBUS;
}
@@ -145,8 +145,16 @@
*/
int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma)
{
+ u64 start = vma->vm_pgoff << PAGE_SHIFT;
u64 len = vma->vm_end - vma->vm_start;
- len = min(len, ctx->psn_size);
+
+ if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
+ if (start + len > ctx->afu->adapter->ps_size)
+ return -EINVAL;
+ } else {
+ if (start + len > ctx->psn_size)
+ return -EINVAL;
+ }
if (ctx->afu->current_mode != CXL_MODE_DEDICATED) {
/* make sure there is a valid per process space for this AFU */
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index 833348e..4a164ab 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -73,7 +73,7 @@
spin_lock(&adapter->afu_list_lock);
for (slice = 0; slice < adapter->slices; slice++) {
afu = adapter->afu[slice];
- if (!afu->enabled)
+ if (!afu || !afu->enabled)
continue;
rcu_read_lock();
idr_for_each_entry(&afu->contexts_idr, ctx, id)
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index c68ef58..32ad097 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -539,7 +539,7 @@
static void cxl_unmap_slice_regs(struct cxl_afu *afu)
{
- if (afu->p1n_mmio)
+ if (afu->p2n_mmio)
iounmap(afu->p2n_mmio);
if (afu->p1n_mmio)
iounmap(afu->p1n_mmio);
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index b1d1983a..2eba002 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -112,9 +112,10 @@
unsigned long addr;
phb = pci_bus_to_host(bus);
- afu = (struct cxl_afu *)phb->private_data;
if (phb == NULL)
return PCIBIOS_DEVICE_NOT_FOUND;
+ afu = (struct cxl_afu *)phb->private_data;
+
if (cxl_pcie_cfg_record(bus->number, devfn) > afu->crs_num)
return PCIBIOS_DEVICE_NOT_FOUND;
if (offset >= (unsigned long)phb->cfg_data)
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 357b6ae..458aa5a 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -552,22 +552,6 @@
schedule_work(&device->event_work);
}
-void mei_cl_bus_remove_devices(struct mei_device *dev)
-{
- struct mei_cl *cl, *next;
-
- mutex_lock(&dev->device_lock);
- list_for_each_entry_safe(cl, next, &dev->device_list, device_link) {
- if (cl->device)
- mei_cl_remove_device(cl->device);
-
- list_del(&cl->device_link);
- mei_cl_unlink(cl);
- kfree(cl);
- }
- mutex_unlock(&dev->device_lock);
-}
-
int __init mei_cl_bus_init(void)
{
return bus_register(&mei_cl_bus_type);
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 94514b2..00c3865 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -333,8 +333,6 @@
mei_nfc_host_exit(dev);
- mei_cl_bus_remove_devices(dev);
-
mutex_lock(&dev->device_lock);
mei_wd_stop(dev);
diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c
index b983c4e..290ef30 100644
--- a/drivers/misc/mei/nfc.c
+++ b/drivers/misc/mei/nfc.c
@@ -402,11 +402,12 @@
cldev->priv_data = NULL;
- mutex_lock(&dev->device_lock);
/* Need to remove the device here
* since mei_nfc_free will unlink the clients
*/
mei_cl_remove_device(cldev);
+
+ mutex_lock(&dev->device_lock);
mei_nfc_free(ndev);
mutex_unlock(&dev->device_lock);
}
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 9df2b68..b2b411d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -43,6 +43,7 @@
#include <linux/regulator/consumer.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
#include <linux/platform_data/hsmmc-omap.h>
/* OMAP HSMMC Host Controller Registers */
@@ -218,7 +219,6 @@
unsigned int flags;
#define AUTO_CMD23 (1 << 0) /* Auto CMD23 support */
#define HSMMC_SDIO_IRQ_ENABLED (1 << 1) /* SDIO irq enabled */
-#define HSMMC_WAKE_IRQ_ENABLED (1 << 2)
struct omap_hsmmc_next next_data;
struct omap_hsmmc_platform_data *pdata;
@@ -1117,22 +1117,6 @@
return IRQ_HANDLED;
}
-static irqreturn_t omap_hsmmc_wake_irq(int irq, void *dev_id)
-{
- struct omap_hsmmc_host *host = dev_id;
-
- /* cirq is level triggered, disable to avoid infinite loop */
- spin_lock(&host->irq_lock);
- if (host->flags & HSMMC_WAKE_IRQ_ENABLED) {
- disable_irq_nosync(host->wake_irq);
- host->flags &= ~HSMMC_WAKE_IRQ_ENABLED;
- }
- spin_unlock(&host->irq_lock);
- pm_request_resume(host->dev); /* no use counter */
-
- return IRQ_HANDLED;
-}
-
static void set_sd_bus_power(struct omap_hsmmc_host *host)
{
unsigned long i;
@@ -1665,7 +1649,6 @@
static int omap_hsmmc_configure_wake_irq(struct omap_hsmmc_host *host)
{
- struct mmc_host *mmc = host->mmc;
int ret;
/*
@@ -1677,11 +1660,7 @@
if (!host->dev->of_node || !host->wake_irq)
return -ENODEV;
- /* Prevent auto-enabling of IRQ */
- irq_set_status_flags(host->wake_irq, IRQ_NOAUTOEN);
- ret = devm_request_irq(host->dev, host->wake_irq, omap_hsmmc_wake_irq,
- IRQF_TRIGGER_LOW | IRQF_ONESHOT,
- mmc_hostname(mmc), host);
+ ret = dev_pm_set_dedicated_wake_irq(host->dev, host->wake_irq);
if (ret) {
dev_err(mmc_dev(host->mmc), "Unable to request wake IRQ\n");
goto err;
@@ -1718,7 +1697,7 @@
return 0;
err_free_irq:
- devm_free_irq(host->dev, host->wake_irq, host);
+ dev_pm_clear_wake_irq(host->dev);
err:
dev_warn(host->dev, "no SDIO IRQ support, falling back to polling\n");
host->wake_irq = 0;
@@ -2007,6 +1986,7 @@
omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
}
+ device_init_wakeup(&pdev->dev, true);
pm_runtime_enable(host->dev);
pm_runtime_get_sync(host->dev);
pm_runtime_set_autosuspend_delay(host->dev, MMC_AUTOSUSPEND_DELAY);
@@ -2147,6 +2127,7 @@
if (host->use_reg)
omap_hsmmc_reg_put(host);
err_irq:
+ device_init_wakeup(&pdev->dev, false);
if (host->tx_chan)
dma_release_channel(host->tx_chan);
if (host->rx_chan)
@@ -2178,6 +2159,7 @@
pm_runtime_put_sync(host->dev);
pm_runtime_disable(host->dev);
+ device_init_wakeup(&pdev->dev, false);
if (host->dbclk)
clk_disable_unprepare(host->dbclk);
@@ -2204,11 +2186,6 @@
OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
}
- /* do not wake up due to sdio irq */
- if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
- !(host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ))
- disable_irq(host->wake_irq);
-
if (host->dbclk)
clk_disable_unprepare(host->dbclk);
@@ -2233,11 +2210,6 @@
omap_hsmmc_conf_bus_power(host);
omap_hsmmc_protect_card(host);
-
- if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
- !(host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ))
- enable_irq(host->wake_irq);
-
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
return 0;
@@ -2277,10 +2249,6 @@
}
pinctrl_pm_select_idle_state(dev);
-
- WARN_ON(host->flags & HSMMC_WAKE_IRQ_ENABLED);
- enable_irq(host->wake_irq);
- host->flags |= HSMMC_WAKE_IRQ_ENABLED;
} else {
pinctrl_pm_select_idle_state(dev);
}
@@ -2302,11 +2270,6 @@
spin_lock_irqsave(&host->irq_lock, flags);
if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
(host->flags & HSMMC_SDIO_IRQ_ENABLED)) {
- /* sdio irq flag can't change while in runtime suspend */
- if (host->flags & HSMMC_WAKE_IRQ_ENABLED) {
- disable_irq_nosync(host->wake_irq);
- host->flags &= ~HSMMC_WAKE_IRQ_ENABLED;
- }
pinctrl_pm_select_default_state(host->dev);
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 019fcef..c18f9e6 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -217,8 +217,8 @@
def_bool NETPOLL
config NTB_NETDEV
- tristate "Virtual Ethernet over NTB"
- depends on NTB
+ tristate "Virtual Ethernet over NTB Transport"
+ depends on NTB_TRANSPORT
config RIONET
tristate "RapidIO Ethernet over messaging driver support"
@@ -258,6 +258,20 @@
If you don't know what to use this for, you don't need it.
+config TUN_VNET_CROSS_LE
+ bool "Support for cross-endian vnet headers on little-endian kernels"
+ default n
+ ---help---
+ This option allows TUN/TAP and MACVTAP device drivers in a
+ little-endian kernel to parse vnet headers that come from a
+ big-endian legacy virtio device.
+
+ Userspace programs can control the feature using the TUNSETVNETBE
+ and TUNGETVNETBE ioctls.
+
+ Unless you have a little-endian system hosting a big-endian virtual
+ machine with a legacy virtio NIC, you should say N.
+
config VETH
tristate "Virtual ethernet pair device"
---help---
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 317a494..e1ccefc 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -625,6 +625,23 @@
call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
}
+static struct slave *bond_get_old_active(struct bonding *bond,
+ struct slave *new_active)
+{
+ struct slave *slave;
+ struct list_head *iter;
+
+ bond_for_each_slave(bond, slave, iter) {
+ if (slave == new_active)
+ continue;
+
+ if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr))
+ return slave;
+ }
+
+ return NULL;
+}
+
/* bond_do_fail_over_mac
*
* Perform special MAC address swapping for fail_over_mac settings
@@ -652,6 +669,9 @@
if (!new_active)
return;
+ if (!old_active)
+ old_active = bond_get_old_active(bond, new_active);
+
if (old_active) {
ether_addr_copy(tmp_mac, new_active->dev->dev_addr);
ether_addr_copy(saddr.sa_data,
@@ -1725,9 +1745,16 @@
err_undo_flags:
/* Enslave of first slave has failed and we need to fix master's mac */
- if (!bond_has_slaves(bond) &&
- ether_addr_equal_64bits(bond_dev->dev_addr, slave_dev->dev_addr))
- eth_hw_addr_random(bond_dev);
+ if (!bond_has_slaves(bond)) {
+ if (ether_addr_equal_64bits(bond_dev->dev_addr,
+ slave_dev->dev_addr))
+ eth_hw_addr_random(bond_dev);
+ if (bond_dev->type != ARPHRD_ETHER) {
+ ether_setup(bond_dev);
+ bond_dev->flags |= IFF_MASTER;
+ bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+ }
+ }
return res;
}
@@ -1916,6 +1943,7 @@
bond_dev->priv_flags |= IFF_DISABLE_NETPOLL;
netdev_info(bond_dev, "Destroying bond %s\n",
bond_dev->name);
+ bond_remove_proc_entry(bond);
unregister_netdevice(bond_dev);
}
return ret;
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index f4e40aa..945c095 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -577,10 +577,10 @@
cf->can_id |= CAN_ERR_CRTL;
cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
- netif_receive_skb(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
}
/**
@@ -642,10 +642,10 @@
}
at91_read_mb(dev, mb, cf);
- netif_receive_skb(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
can_led_event(dev, CAN_LED_EVENT_RX);
}
@@ -802,10 +802,10 @@
return 0;
at91_poll_err_frame(dev, cf, reg_sr);
- netif_receive_skb(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
return 1;
}
@@ -1067,10 +1067,10 @@
return;
at91_irq_err_state(dev, cf, new_state);
- netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += cf->can_dlc;
+ netif_rx(skb);
priv->can.state = new_state;
}
diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index 27ad312..57dadd5 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -424,10 +424,9 @@
cf->data[6 - i] = (6 - i) < cf->can_dlc ? (val >> 8) : 0;
}
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
static int bfin_can_err(struct net_device *dev, u16 isrc, u16 status)
@@ -508,10 +507,9 @@
priv->can.state = state;
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
return 0;
}
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 041525d..5d214d1 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -592,6 +592,7 @@
{
struct c_can_priv *priv = netdev_priv(dev);
int err;
+ struct pinctrl *p;
/* basic c_can configuration */
err = c_can_chip_config(dev);
@@ -604,8 +605,13 @@
priv->can.state = CAN_STATE_ERROR_ACTIVE;
- /* activate pins */
- pinctrl_pm_select_default_state(dev->dev.parent);
+ /* Attempt to use "active" if available else use "default" */
+ p = pinctrl_get_select(priv->device, "active");
+ if (!IS_ERR(p))
+ pinctrl_put(p);
+ else
+ pinctrl_pm_select_default_state(priv->device);
+
return 0;
}
diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c
index c11d449..70a8cbb 100644
--- a/drivers/net/can/cc770/cc770.c
+++ b/drivers/net/can/cc770/cc770.c
@@ -504,10 +504,10 @@
for (i = 0; i < cf->can_dlc; i++)
cf->data[i] = cc770_read_reg(priv, msgobj[mo].data[i]);
}
- netif_rx(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
static int cc770_err(struct net_device *dev, u8 status)
@@ -584,10 +584,10 @@
}
}
- netif_rx(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
return 0;
}
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index e9b1810..aede704 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -440,9 +440,6 @@
struct can_frame *cf = (struct can_frame *)skb->data;
u8 dlc = cf->can_dlc;
- if (!(skb->tstamp.tv64))
- __net_timestamp(skb);
-
netif_rx(priv->echo_skb[idx]);
priv->echo_skb[idx] = NULL;
@@ -578,7 +575,6 @@
if (unlikely(!skb))
return NULL;
- __net_timestamp(skb);
skb->protocol = htons(ETH_P_CAN);
skb->pkt_type = PACKET_BROADCAST;
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -589,6 +585,7 @@
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
*cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
memset(*cf, 0, sizeof(struct can_frame));
@@ -607,7 +604,6 @@
if (unlikely(!skb))
return NULL;
- __net_timestamp(skb);
skb->protocol = htons(ETH_P_CANFD);
skb->pkt_type = PACKET_BROADCAST;
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -618,6 +614,7 @@
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
*cfd = (struct canfd_frame *)skb_put(skb, sizeof(struct canfd_frame));
memset(*cfd, 0, sizeof(struct canfd_frame));
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 6201c5a..b1e8d72 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -577,10 +577,10 @@
return 0;
do_bus_err(dev, cf, reg_esr);
- netif_receive_skb(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
return 1;
}
@@ -622,10 +622,9 @@
if (unlikely(new_state == CAN_STATE_BUS_OFF))
can_bus_off(dev);
- netif_receive_skb(skb);
-
dev->stats.rx_packets++;
dev->stats.rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
return 1;
}
@@ -670,10 +669,10 @@
}
flexcan_read_fifo(dev, cf);
- netif_receive_skb(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
can_led_event(dev, CAN_LED_EVENT_RX);
diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index e3d7e22..db9538d 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -1216,11 +1216,12 @@
cf->data[i] = (u8)(slot[j] >> shift);
}
}
- netif_receive_skb(skb);
/* Update statistics and read pointer */
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_receive_skb(skb);
+
rd = grcan_ring_add(rd, GRCAN_MSG_SIZE, dma->rx.size);
}
diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c
index 7deb80d..7bd5419 100644
--- a/drivers/net/can/rcar_can.c
+++ b/drivers/net/can/rcar_can.c
@@ -508,7 +508,8 @@
err = clk_prepare_enable(priv->clk);
if (err) {
- netdev_err(ndev, "failed to enable periperal clock, error %d\n",
+ netdev_err(ndev,
+ "failed to enable peripheral clock, error %d\n",
err);
goto out;
}
@@ -526,7 +527,8 @@
napi_enable(&priv->napi);
err = request_irq(ndev->irq, rcar_can_interrupt, 0, ndev->name, ndev);
if (err) {
- netdev_err(ndev, "error requesting interrupt %x\n", ndev->irq);
+ netdev_err(ndev, "request_irq(%d) failed, error %d\n",
+ ndev->irq, err);
goto out_close;
}
can_led_event(ndev, CAN_LED_EVENT_OPEN);
@@ -758,8 +760,9 @@
}
irq = platform_get_irq(pdev, 0);
- if (!irq) {
+ if (irq < 0) {
dev_err(&pdev->dev, "No IRQ resource\n");
+ err = irq;
goto fail;
}
@@ -782,7 +785,8 @@
priv->clk = devm_clk_get(&pdev->dev, "clkp1");
if (IS_ERR(priv->clk)) {
err = PTR_ERR(priv->clk);
- dev_err(&pdev->dev, "cannot get peripheral clock: %d\n", err);
+ dev_err(&pdev->dev, "cannot get peripheral clock, error %d\n",
+ err);
goto fail_clk;
}
@@ -794,7 +798,7 @@
priv->can_clk = devm_clk_get(&pdev->dev, clock_names[clock_select]);
if (IS_ERR(priv->can_clk)) {
err = PTR_ERR(priv->can_clk);
- dev_err(&pdev->dev, "cannot get CAN clock: %d\n", err);
+ dev_err(&pdev->dev, "cannot get CAN clock, error %d\n", err);
goto fail_clk;
}
@@ -823,7 +827,7 @@
devm_can_led_init(ndev);
- dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%u)\n",
+ dev_info(&pdev->dev, "device registered (regs @ %p, IRQ%d)\n",
priv->regs, ndev->irq);
return 0;
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 32bd7f4..7b92e91 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -377,10 +377,9 @@
/* release receive buffer */
sja1000_write_cmdreg(priv, CMD_RRB);
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
can_led_event(dev, CAN_LED_EVENT_RX);
}
@@ -484,10 +483,9 @@
can_bus_off(dev);
}
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
return 0;
}
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index f64f529..9a3f15c 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -207,7 +207,6 @@
if (!skb)
return;
- __net_timestamp(skb);
skb->dev = sl->dev;
skb->protocol = htons(ETH_P_CAN);
skb->pkt_type = PACKET_BROADCAST;
@@ -215,13 +214,14 @@
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = sl->dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
memcpy(skb_put(skb, sizeof(struct can_frame)),
&cf, sizeof(struct can_frame));
- netif_rx_ni(skb);
sl->dev->stats.rx_packets++;
sl->dev->stats.rx_bytes += cf.can_dlc;
+ netif_rx_ni(skb);
}
/* parse tty input stream */
diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c
index c1a95a3..b7e83c2 100644
--- a/drivers/net/can/spi/mcp251x.c
+++ b/drivers/net/can/spi/mcp251x.c
@@ -1086,8 +1086,8 @@
if (ret)
goto out_clk;
- priv->power = devm_regulator_get(&spi->dev, "vdd");
- priv->transceiver = devm_regulator_get(&spi->dev, "xceiver");
+ priv->power = devm_regulator_get_optional(&spi->dev, "vdd");
+ priv->transceiver = devm_regulator_get_optional(&spi->dev, "xceiver");
if ((PTR_ERR(priv->power) == -EPROBE_DEFER) ||
(PTR_ERR(priv->transceiver) == -EPROBE_DEFER)) {
ret = -EPROBE_DEFER;
@@ -1222,17 +1222,16 @@
struct spi_device *spi = to_spi_device(dev);
struct mcp251x_priv *priv = spi_get_drvdata(spi);
- if (priv->after_suspend & AFTER_SUSPEND_POWER) {
+ if (priv->after_suspend & AFTER_SUSPEND_POWER)
mcp251x_power_enable(priv->power, 1);
+
+ if (priv->after_suspend & AFTER_SUSPEND_UP) {
+ mcp251x_power_enable(priv->transceiver, 1);
queue_work(priv->wq, &priv->restart_work);
} else {
- if (priv->after_suspend & AFTER_SUSPEND_UP) {
- mcp251x_power_enable(priv->transceiver, 1);
- queue_work(priv->wq, &priv->restart_work);
- } else {
- priv->after_suspend = 0;
- }
+ priv->after_suspend = 0;
}
+
priv->force_quit = 0;
enable_irq(spi->irq);
return 0;
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index e95a9e1..cf345cb 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -747,9 +747,9 @@
}
}
- netif_rx(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
return 0;
}
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 866bac0..2d39038 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -324,10 +324,9 @@
cf->data[i] = msg->msg.can_msg.msg[i];
}
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg)
@@ -400,10 +399,9 @@
stats->rx_errors++;
}
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
/*
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index 411c1af..0e5a449 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -301,13 +301,12 @@
cf->data[7] = rxerr;
}
- netif_rx(skb);
-
priv->bec.txerr = txerr;
priv->bec.rxerr = rxerr;
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
}
@@ -347,10 +346,9 @@
cf->data[i] = msg->msg.rx.data[i];
}
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
return;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 72427f2..6b94007 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -526,9 +526,9 @@
hwts->hwtstamp = timeval_to_ktime(tv);
}
- netif_rx(skb);
mc->netdev->stats.rx_packets++;
mc->netdev->stats.rx_bytes += cf->can_dlc;
+ netif_rx(skb);
return 0;
}
@@ -659,12 +659,11 @@
hwts = skb_hwtstamps(skb);
hwts->hwtstamp = timeval_to_ktime(tv);
- /* push the skb */
- netif_rx(skb);
-
/* update statistics */
mc->netdev->stats.rx_packets++;
mc->netdev->stats.rx_bytes += cf->can_dlc;
+ /* push the skb */
+ netif_rx(skb);
return 0;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index dec5171..7d61b32 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -553,9 +553,9 @@
hwts = skb_hwtstamps(skb);
hwts->hwtstamp = timeval_to_ktime(tv);
- netif_rx(skb);
netdev->stats.rx_packets++;
netdev->stats.rx_bytes += can_frame->can_dlc;
+ netif_rx(skb);
return 0;
}
@@ -670,9 +670,9 @@
peak_usb_get_ts_tv(&usb_if->time_ref, le32_to_cpu(er->ts32), &tv);
hwts = skb_hwtstamps(skb);
hwts->hwtstamp = timeval_to_ktime(tv);
- netif_rx(skb);
netdev->stats.rx_packets++;
netdev->stats.rx_bytes += can_frame->can_dlc;
+ netif_rx(skb);
return 0;
}
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index dd52c7a..de95b1c 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -461,10 +461,9 @@
priv->bec.txerr = txerr;
priv->bec.rxerr = rxerr;
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
}
/* Read data and status frames */
@@ -494,10 +493,9 @@
else
memcpy(cf->data, msg->data, cf->can_dlc);
- netif_rx(skb);
-
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+ netif_rx(skb);
can_led_event(priv->netdev, CAN_LED_EVENT_RX);
} else {
diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
index 0ce868d..674f367 100644
--- a/drivers/net/can/vcan.c
+++ b/drivers/net/can/vcan.c
@@ -78,9 +78,6 @@
skb->dev = dev;
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (!(skb->tstamp.tv64))
- __net_timestamp(skb);
-
netif_rx_ni(skb);
}
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 972982f..079897b 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -696,9 +696,20 @@
}
/* Include the pseudo-PHY address and the broadcast PHY address to
- * divert reads towards our workaround
+ * divert reads towards our workaround. This is only required for
+ * 7445D0, since 7445E0 disconnects the internal switch pseudo-PHY such
+ * that we can use the regular SWITCH_MDIO master controller instead.
+ *
+ * By default, DSA initializes ds->phys_mii_mask to ds->phys_port_mask
+ * to have a 1:1 mapping between Port address and PHY address in order
+ * to utilize the slave_mii_bus instance to read from Port PHYs. This is
+ * not what we want here, so we initialize phys_mii_mask 0 to always
+ * utilize the "master" MDIO bus backed by the "mdio-unimac" driver.
*/
- ds->phys_mii_mask |= ((1 << BRCM_PSEUDO_PHY_ADDR) | (1 << 0));
+ if (of_machine_is_compatible("brcm,bcm7445d0"))
+ ds->phys_mii_mask |= ((1 << BRCM_PSEUDO_PHY_ADDR) | (1 << 0));
+ else
+ ds->phys_mii_mask = 0;
rev = reg_readl(priv, REG_SWITCH_REVISION);
priv->hw_params.top_rev = (rev >> SWITCH_TOP_REV_SHIFT) &
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index fd8547c..5613424 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1163,7 +1163,7 @@
newfid = __ffs(ps->fid_mask);
ps->fid[port] = newfid;
- ps->fid_mask &= (1 << newfid);
+ ps->fid_mask &= ~(1 << newfid);
ps->bridge_mask[fid] &= ~(1 << port);
ps->bridge_mask[newfid] = 1 << port;
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index b43b2cb..64c1e9d 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1230,7 +1230,6 @@
new_skb = skb_realloc_headroom(skb, sizeof(*status));
dev_kfree_skb(skb);
if (!new_skb) {
- dev->stats.tx_errors++;
dev->stats.tx_dropped++;
return NULL;
}
@@ -1465,7 +1464,6 @@
if (unlikely(!skb)) {
dev->stats.rx_dropped++;
- dev->stats.rx_errors++;
goto next;
}
@@ -1493,7 +1491,6 @@
if (unlikely(!(dma_flag & DMA_EOP) || !(dma_flag & DMA_SOP))) {
netif_err(priv, rx_status, dev,
"dropping fragmented packet!\n");
- dev->stats.rx_dropped++;
dev->stats.rx_errors++;
dev_kfree_skb_any(skb);
goto next;
@@ -1515,7 +1512,6 @@
dev->stats.rx_frame_errors++;
if (dma_flag & DMA_RX_LG)
dev->stats.rx_length_errors++;
- dev->stats.rx_dropped++;
dev->stats.rx_errors++;
dev_kfree_skb_any(skb);
goto next;
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 42e20e5..1f89c59 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -24,7 +24,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
-#include <linux/pm_runtime.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/ioport.h>
@@ -78,7 +77,6 @@
#define FEC_ENET_RAEM_V 0x8
#define FEC_ENET_RAFL_V 0x8
#define FEC_ENET_OPD_V 0xFFF0
-#define FEC_MDIO_PM_TIMEOUT 100 /* ms */
static struct platform_device_id fec_devtype[] = {
{
@@ -1769,13 +1767,7 @@
static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
{
struct fec_enet_private *fep = bus->priv;
- struct device *dev = &fep->pdev->dev;
unsigned long time_left;
- int ret = 0;
-
- ret = pm_runtime_get_sync(dev);
- if (IS_ERR_VALUE(ret))
- return ret;
fep->mii_timeout = 0;
init_completion(&fep->mdio_done);
@@ -1791,30 +1783,18 @@
if (time_left == 0) {
fep->mii_timeout = 1;
netdev_err(fep->netdev, "MDIO read timeout\n");
- ret = -ETIMEDOUT;
- goto out;
+ return -ETIMEDOUT;
}
- ret = FEC_MMFR_DATA(readl(fep->hwp + FEC_MII_DATA));
-
-out:
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
-
- return ret;
+ /* return value */
+ return FEC_MMFR_DATA(readl(fep->hwp + FEC_MII_DATA));
}
static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
u16 value)
{
struct fec_enet_private *fep = bus->priv;
- struct device *dev = &fep->pdev->dev;
unsigned long time_left;
- int ret = 0;
-
- ret = pm_runtime_get_sync(dev);
- if (IS_ERR_VALUE(ret))
- return ret;
fep->mii_timeout = 0;
init_completion(&fep->mdio_done);
@@ -1831,13 +1811,10 @@
if (time_left == 0) {
fep->mii_timeout = 1;
netdev_err(fep->netdev, "MDIO write timeout\n");
- ret = -ETIMEDOUT;
+ return -ETIMEDOUT;
}
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
-
- return ret;
+ return 0;
}
static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
@@ -1849,6 +1826,9 @@
ret = clk_prepare_enable(fep->clk_ahb);
if (ret)
return ret;
+ ret = clk_prepare_enable(fep->clk_ipg);
+ if (ret)
+ goto failed_clk_ipg;
if (fep->clk_enet_out) {
ret = clk_prepare_enable(fep->clk_enet_out);
if (ret)
@@ -1872,6 +1852,7 @@
}
} else {
clk_disable_unprepare(fep->clk_ahb);
+ clk_disable_unprepare(fep->clk_ipg);
if (fep->clk_enet_out)
clk_disable_unprepare(fep->clk_enet_out);
if (fep->clk_ptp) {
@@ -1893,6 +1874,8 @@
if (fep->clk_enet_out)
clk_disable_unprepare(fep->clk_enet_out);
failed_clk_enet_out:
+ clk_disable_unprepare(fep->clk_ipg);
+failed_clk_ipg:
clk_disable_unprepare(fep->clk_ahb);
return ret;
@@ -2864,14 +2847,10 @@
struct fec_enet_private *fep = netdev_priv(ndev);
int ret;
- ret = pm_runtime_get_sync(&fep->pdev->dev);
- if (IS_ERR_VALUE(ret))
- return ret;
-
pinctrl_pm_select_default_state(&fep->pdev->dev);
ret = fec_enet_clk_enable(ndev, true);
if (ret)
- goto clk_enable;
+ return ret;
/* I should reset the ring buffers here, but I don't yet know
* a simple way to do that.
@@ -2902,9 +2881,6 @@
fec_enet_free_buffers(ndev);
err_enet_alloc:
fec_enet_clk_enable(ndev, false);
-clk_enable:
- pm_runtime_mark_last_busy(&fep->pdev->dev);
- pm_runtime_put_autosuspend(&fep->pdev->dev);
pinctrl_pm_select_sleep_state(&fep->pdev->dev);
return ret;
}
@@ -2927,9 +2903,6 @@
fec_enet_clk_enable(ndev, false);
pinctrl_pm_select_sleep_state(&fep->pdev->dev);
- pm_runtime_mark_last_busy(&fep->pdev->dev);
- pm_runtime_put_autosuspend(&fep->pdev->dev);
-
fec_enet_free_buffers(ndev);
return 0;
@@ -3415,10 +3388,6 @@
if (ret)
goto failed_clk;
- ret = clk_prepare_enable(fep->clk_ipg);
- if (ret)
- goto failed_clk_ipg;
-
fep->reg_phy = devm_regulator_get(&pdev->dev, "phy");
if (!IS_ERR(fep->reg_phy)) {
ret = regulator_enable(fep->reg_phy);
@@ -3465,8 +3434,6 @@
netif_carrier_off(ndev);
fec_enet_clk_enable(ndev, false);
pinctrl_pm_select_sleep_state(&pdev->dev);
- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
ret = register_netdev(ndev);
if (ret)
@@ -3480,12 +3447,6 @@
fep->rx_copybreak = COPYBREAK_DEFAULT;
INIT_WORK(&fep->tx_timeout_work, fec_enet_timeout_work);
-
- pm_runtime_set_autosuspend_delay(&pdev->dev, FEC_MDIO_PM_TIMEOUT);
- pm_runtime_use_autosuspend(&pdev->dev);
- pm_runtime_mark_last_busy(&pdev->dev);
- pm_runtime_put_autosuspend(&pdev->dev);
-
return 0;
failed_register:
@@ -3496,8 +3457,6 @@
if (fep->reg_phy)
regulator_disable(fep->reg_phy);
failed_regulator:
- clk_disable_unprepare(fep->clk_ipg);
-failed_clk_ipg:
fec_enet_clk_enable(ndev, false);
failed_clk:
failed_phy:
@@ -3609,28 +3568,7 @@
return ret;
}
-static int __maybe_unused fec_runtime_suspend(struct device *dev)
-{
- struct net_device *ndev = dev_get_drvdata(dev);
- struct fec_enet_private *fep = netdev_priv(ndev);
-
- clk_disable_unprepare(fep->clk_ipg);
-
- return 0;
-}
-
-static int __maybe_unused fec_runtime_resume(struct device *dev)
-{
- struct net_device *ndev = dev_get_drvdata(dev);
- struct fec_enet_private *fep = netdev_priv(ndev);
-
- return clk_prepare_enable(fep->clk_ipg);
-}
-
-static const struct dev_pm_ops fec_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(fec_suspend, fec_resume)
- SET_RUNTIME_PM_OPS(fec_runtime_suspend, fec_runtime_resume, NULL)
-};
+static SIMPLE_DEV_PM_OPS(fec_pm_ops, fec_suspend, fec_resume);
static struct platform_driver fec_driver = {
.driver = {
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 370e20ed..62e48bc 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1462,7 +1462,7 @@
struct mvneta_rx_queue *rxq)
{
struct net_device *dev = pp->dev;
- int rx_done, rx_filled;
+ int rx_done;
u32 rcvd_pkts = 0;
u32 rcvd_bytes = 0;
@@ -1473,7 +1473,6 @@
rx_todo = rx_done;
rx_done = 0;
- rx_filled = 0;
/* Fairness NAPI loop */
while (rx_done < rx_todo) {
@@ -1484,7 +1483,6 @@
int rx_bytes, err;
rx_done++;
- rx_filled++;
rx_status = rx_desc->status;
rx_bytes = rx_desc->data_size - (ETH_FCS_LEN + MVNETA_MH_SIZE);
data = (unsigned char *)rx_desc->buf_cookie;
@@ -1524,6 +1522,14 @@
continue;
}
+ /* Refill processing */
+ err = mvneta_rx_refill(pp, rx_desc);
+ if (err) {
+ netdev_err(dev, "Linux processing - Can't refill\n");
+ rxq->missed++;
+ goto err_drop_frame;
+ }
+
skb = build_skb(data, pp->frag_size > PAGE_SIZE ? 0 : pp->frag_size);
if (!skb)
goto err_drop_frame;
@@ -1543,14 +1549,6 @@
mvneta_rx_csum(pp, rx_status, skb);
napi_gro_receive(&pp->napi, skb);
-
- /* Refill processing */
- err = mvneta_rx_refill(pp, rx_desc);
- if (err) {
- netdev_err(dev, "Linux processing - Can't refill\n");
- rxq->missed++;
- rx_filled--;
- }
}
if (rcvd_pkts) {
@@ -1563,7 +1561,7 @@
}
/* Update rxq management counters */
- mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_filled);
+ mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done);
return rx_done;
}
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index fd97457..d08c250 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -543,10 +543,9 @@
skb = priv->rx_skb[q][entry];
priv->rx_skb[q][entry] = NULL;
- dma_sync_single_for_cpu(&ndev->dev,
- le32_to_cpu(desc->dptr),
- ALIGN(PKT_BUF_SZ, 16),
- DMA_FROM_DEVICE);
+ dma_unmap_single(&ndev->dev, le32_to_cpu(desc->dptr),
+ ALIGN(PKT_BUF_SZ, 16),
+ DMA_FROM_DEVICE);
get_ts &= (q == RAVB_NC) ?
RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
~RAVB_RXTSTAMP_TYPE_V2_L2_EVENT;
@@ -584,9 +583,6 @@
if (!skb)
break; /* Better luck next round. */
ravb_set_buffer_align(skb);
- dma_unmap_single(&ndev->dev, le32_to_cpu(desc->dptr),
- ALIGN(PKT_BUF_SZ, 16),
- DMA_FROM_DEVICE);
dma_addr = dma_map_single(&ndev->dev, skb->data,
le16_to_cpu(desc->ds_cc),
DMA_FROM_DEVICE);
@@ -1279,7 +1275,6 @@
u32 dma_addr;
void *buffer;
u32 entry;
- u32 tccr;
spin_lock_irqsave(&priv->lock, flags);
if (priv->cur_tx[q] - priv->dirty_tx[q] >= priv->num_tx_ring[q]) {
@@ -1328,9 +1323,7 @@
dma_wmb();
desc->die_dt = DT_FSINGLE;
- tccr = ravb_read(ndev, TCCR);
- if (!(tccr & (TCCR_TSRQ0 << q)))
- ravb_write(ndev, tccr | (TCCR_TSRQ0 << q), TCCR);
+ ravb_write(ndev, ravb_read(ndev, TCCR) | (TCCR_TSRQ0 << q), TCCR);
priv->cur_tx[q]++;
if (priv->cur_tx[q] - priv->dirty_tx[q] >= priv->num_tx_ring[q] &&
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 50f7a7a..864b476 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2843,7 +2843,7 @@
if (res->mac)
memcpy(priv->dev->dev_addr, res->mac, ETH_ALEN);
- dev_set_drvdata(device, priv);
+ dev_set_drvdata(device, priv->dev);
/* Verify driver arguments */
stmmac_verify_args();
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index f335bf1..d155bf2 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -793,9 +793,7 @@
static int cpsw_poll(struct napi_struct *napi, int budget)
{
struct cpsw_priv *priv = napi_to_priv(napi);
- int num_tx, num_rx;
-
- num_tx = cpdma_chan_process(priv->txch, 128);
+ int num_rx;
num_rx = cpdma_chan_process(priv->rxch, budget);
if (num_rx < budget) {
@@ -810,9 +808,8 @@
}
}
- if (num_rx || num_tx)
- cpsw_dbg(priv, intr, "poll %d rx, %d tx pkts\n",
- num_rx, num_tx);
+ if (num_rx)
+ cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);
return num_rx;
}
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index 5ec4ed3..ec8ed30 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -1617,11 +1617,11 @@
}
mutex_unlock(&netcp_modules_lock);
- netcp_rxpool_refill(netcp);
napi_enable(&netcp->rx_napi);
napi_enable(&netcp->tx_napi);
knav_queue_enable_notify(netcp->tx_compl_q);
knav_queue_enable_notify(netcp->rx_queue);
+ netcp_rxpool_refill(netcp);
netif_tx_wake_all_queues(ndev);
dev_dbg(netcp->ndev_dev, "netcp device %s opened\n", ndev->name);
return 0;
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
index 953a974..9542b7b 100644
--- a/drivers/net/ipvlan/ipvlan.h
+++ b/drivers/net/ipvlan/ipvlan.h
@@ -67,8 +67,6 @@
struct ipvl_port *port;
struct net_device *phy_dev;
struct list_head addrs;
- int ipv4cnt;
- int ipv6cnt;
struct ipvl_pcpu_stats __percpu *pcpu_stats;
DECLARE_BITMAP(mac_filters, IPVLAN_MAC_FILTER_SIZE);
netdev_features_t sfeatures;
@@ -106,6 +104,11 @@
return rcu_dereference(d->rx_handler_data);
}
+static inline struct ipvl_port *ipvlan_port_get_rcu_bh(const struct net_device *d)
+{
+ return rcu_dereference_bh(d->rx_handler_data);
+}
+
static inline struct ipvl_port *ipvlan_port_get_rtnl(const struct net_device *d)
{
return rtnl_dereference(d->rx_handler_data);
@@ -124,5 +127,5 @@
bool ipvlan_addr_busy(struct ipvl_port *port, void *iaddr, bool is_v6);
struct ipvl_addr *ipvlan_ht_addr_lookup(const struct ipvl_port *port,
const void *iaddr, bool is_v6);
-void ipvlan_ht_addr_del(struct ipvl_addr *addr, bool sync);
+void ipvlan_ht_addr_del(struct ipvl_addr *addr);
#endif /* __IPVLAN_H */
diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index 8afbeda..207f62e 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -85,11 +85,9 @@
hlist_add_head_rcu(&addr->hlnode, &port->hlhead[hash]);
}
-void ipvlan_ht_addr_del(struct ipvl_addr *addr, bool sync)
+void ipvlan_ht_addr_del(struct ipvl_addr *addr)
{
hlist_del_init_rcu(&addr->hlnode);
- if (sync)
- synchronize_rcu();
}
struct ipvl_addr *ipvlan_find_addr(const struct ipvl_dev *ipvlan,
@@ -531,7 +529,7 @@
int ipvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ipvl_dev *ipvlan = netdev_priv(dev);
- struct ipvl_port *port = ipvlan_port_get_rcu(ipvlan->phy_dev);
+ struct ipvl_port *port = ipvlan_port_get_rcu_bh(ipvlan->phy_dev);
if (!port)
goto out;
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 1acc283..20b58bd 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -153,10 +153,9 @@
else
dev->flags &= ~IFF_NOARP;
- if (ipvlan->ipv6cnt > 0 || ipvlan->ipv4cnt > 0) {
- list_for_each_entry(addr, &ipvlan->addrs, anode)
- ipvlan_ht_addr_add(ipvlan, addr);
- }
+ list_for_each_entry(addr, &ipvlan->addrs, anode)
+ ipvlan_ht_addr_add(ipvlan, addr);
+
return dev_uc_add(phy_dev, phy_dev->dev_addr);
}
@@ -171,10 +170,9 @@
dev_uc_del(phy_dev, phy_dev->dev_addr);
- if (ipvlan->ipv6cnt > 0 || ipvlan->ipv4cnt > 0) {
- list_for_each_entry(addr, &ipvlan->addrs, anode)
- ipvlan_ht_addr_del(addr, !dev->dismantle);
- }
+ list_for_each_entry(addr, &ipvlan->addrs, anode)
+ ipvlan_ht_addr_del(addr);
+
return 0;
}
@@ -471,8 +469,6 @@
ipvlan->port = port;
ipvlan->sfeatures = IPVLAN_FEATURES;
INIT_LIST_HEAD(&ipvlan->addrs);
- ipvlan->ipv4cnt = 0;
- ipvlan->ipv6cnt = 0;
/* TODO Probably put random address here to be presented to the
* world but keep using the physical-dev address for the outgoing
@@ -508,12 +504,12 @@
struct ipvl_dev *ipvlan = netdev_priv(dev);
struct ipvl_addr *addr, *next;
- if (ipvlan->ipv6cnt > 0 || ipvlan->ipv4cnt > 0) {
- list_for_each_entry_safe(addr, next, &ipvlan->addrs, anode) {
- ipvlan_ht_addr_del(addr, !dev->dismantle);
- list_del(&addr->anode);
- }
+ list_for_each_entry_safe(addr, next, &ipvlan->addrs, anode) {
+ ipvlan_ht_addr_del(addr);
+ list_del(&addr->anode);
+ kfree_rcu(addr, rcu);
}
+
list_del_rcu(&ipvlan->pnode);
unregister_netdevice_queue(dev, head);
netdev_upper_dev_unlink(ipvlan->phy_dev, dev);
@@ -627,7 +623,7 @@
memcpy(&addr->ip6addr, ip6_addr, sizeof(struct in6_addr));
addr->atype = IPVL_IPV6;
list_add_tail(&addr->anode, &ipvlan->addrs);
- ipvlan->ipv6cnt++;
+
/* If the interface is not up, the address will be added to the hash
* list by ipvlan_open.
*/
@@ -645,10 +641,8 @@
if (!addr)
return;
- ipvlan_ht_addr_del(addr, true);
+ ipvlan_ht_addr_del(addr);
list_del(&addr->anode);
- ipvlan->ipv6cnt--;
- WARN_ON(ipvlan->ipv6cnt < 0);
kfree_rcu(addr, rcu);
return;
@@ -661,6 +655,10 @@
struct net_device *dev = (struct net_device *)if6->idev->dev;
struct ipvl_dev *ipvlan = netdev_priv(dev);
+ /* FIXME IPv6 autoconf calls us from bh without RTNL */
+ if (in_softirq())
+ return NOTIFY_DONE;
+
if (!netif_is_ipvlan(dev))
return NOTIFY_DONE;
@@ -699,7 +697,7 @@
memcpy(&addr->ip4addr, ip4_addr, sizeof(struct in_addr));
addr->atype = IPVL_IPV4;
list_add_tail(&addr->anode, &ipvlan->addrs);
- ipvlan->ipv4cnt++;
+
/* If the interface is not up, the address will be added to the hash
* list by ipvlan_open.
*/
@@ -717,10 +715,8 @@
if (!addr)
return;
- ipvlan_ht_addr_del(addr, true);
+ ipvlan_ht_addr_del(addr);
list_del(&addr->anode);
- ipvlan->ipv4cnt--;
- WARN_ON(ipvlan->ipv4cnt < 0);
kfree_rcu(addr, rcu);
return;
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index b4b6191..3b933bb 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -48,15 +48,70 @@
#define MACVTAP_FEATURES (IFF_VNET_HDR | IFF_MULTI_QUEUE)
#define MACVTAP_VNET_LE 0x80000000
+#define MACVTAP_VNET_BE 0x40000000
+
+#ifdef CONFIG_TUN_VNET_CROSS_LE
+static inline bool macvtap_legacy_is_little_endian(struct macvtap_queue *q)
+{
+ return q->flags & MACVTAP_VNET_BE ? false :
+ virtio_legacy_is_little_endian();
+}
+
+static long macvtap_get_vnet_be(struct macvtap_queue *q, int __user *sp)
+{
+ int s = !!(q->flags & MACVTAP_VNET_BE);
+
+ if (put_user(s, sp))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long macvtap_set_vnet_be(struct macvtap_queue *q, int __user *sp)
+{
+ int s;
+
+ if (get_user(s, sp))
+ return -EFAULT;
+
+ if (s)
+ q->flags |= MACVTAP_VNET_BE;
+ else
+ q->flags &= ~MACVTAP_VNET_BE;
+
+ return 0;
+}
+#else
+static inline bool macvtap_legacy_is_little_endian(struct macvtap_queue *q)
+{
+ return virtio_legacy_is_little_endian();
+}
+
+static long macvtap_get_vnet_be(struct macvtap_queue *q, int __user *argp)
+{
+ return -EINVAL;
+}
+
+static long macvtap_set_vnet_be(struct macvtap_queue *q, int __user *argp)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_TUN_VNET_CROSS_LE */
+
+static inline bool macvtap_is_little_endian(struct macvtap_queue *q)
+{
+ return q->flags & MACVTAP_VNET_LE ||
+ macvtap_legacy_is_little_endian(q);
+}
static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val)
{
- return __virtio16_to_cpu(q->flags & MACVTAP_VNET_LE, val);
+ return __virtio16_to_cpu(macvtap_is_little_endian(q), val);
}
static inline __virtio16 cpu_to_macvtap16(struct macvtap_queue *q, u16 val)
{
- return __cpu_to_virtio16(q->flags & MACVTAP_VNET_LE, val);
+ return __cpu_to_virtio16(macvtap_is_little_endian(q), val);
}
static struct proto macvtap_proto = {
@@ -1085,6 +1140,12 @@
q->flags &= ~MACVTAP_VNET_LE;
return 0;
+ case TUNGETVNETBE:
+ return macvtap_get_vnet_be(q, sp);
+
+ case TUNSETVNETBE:
+ return macvtap_set_vnet_be(q, sp);
+
case TUNSETOFFLOAD:
/* let the user check for future flags */
if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 |
diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index 5a7e639..3cc316cb 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -5,6 +5,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -13,6 +14,7 @@
* BSD LICENSE
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -40,7 +42,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Intel PCIe NTB Network Linux driver
+ * PCIe NTB Network Linux driver
*
* Contact Information:
* Jon Mason <jon.mason@intel.com>
@@ -50,6 +52,7 @@
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ntb.h>
+#include <linux/ntb_transport.h>
#define NTB_NETDEV_VER "0.7"
@@ -70,26 +73,19 @@
static LIST_HEAD(dev_list);
-static void ntb_netdev_event_handler(void *data, int status)
+static void ntb_netdev_event_handler(void *data, int link_is_up)
{
struct net_device *ndev = data;
struct ntb_netdev *dev = netdev_priv(ndev);
- netdev_dbg(ndev, "Event %x, Link %x\n", status,
+ netdev_dbg(ndev, "Event %x, Link %x\n", link_is_up,
ntb_transport_link_query(dev->qp));
- switch (status) {
- case NTB_LINK_DOWN:
+ if (link_is_up) {
+ if (ntb_transport_link_query(dev->qp))
+ netif_carrier_on(ndev);
+ } else {
netif_carrier_off(ndev);
- break;
- case NTB_LINK_UP:
- if (!ntb_transport_link_query(dev->qp))
- return;
-
- netif_carrier_on(ndev);
- break;
- default:
- netdev_warn(ndev, "Unsupported event type %d\n", status);
}
}
@@ -160,8 +156,6 @@
struct ntb_netdev *dev = netdev_priv(ndev);
int rc;
- netdev_dbg(ndev, "%s: skb len %d\n", __func__, skb->len);
-
rc = ntb_transport_tx_enqueue(dev->qp, skb, skb->data, skb->len);
if (rc)
goto err;
@@ -322,20 +316,26 @@
.event_handler = ntb_netdev_event_handler,
};
-static int ntb_netdev_probe(struct pci_dev *pdev)
+static int ntb_netdev_probe(struct device *client_dev)
{
+ struct ntb_dev *ntb;
struct net_device *ndev;
+ struct pci_dev *pdev;
struct ntb_netdev *dev;
int rc;
- ndev = alloc_etherdev(sizeof(struct ntb_netdev));
+ ntb = dev_ntb(client_dev->parent);
+ pdev = ntb->pdev;
+ if (!pdev)
+ return -ENODEV;
+
+ ndev = alloc_etherdev(sizeof(*dev));
if (!ndev)
return -ENOMEM;
dev = netdev_priv(ndev);
dev->ndev = ndev;
dev->pdev = pdev;
- BUG_ON(!dev->pdev);
ndev->features = NETIF_F_HIGHDMA;
ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
@@ -349,7 +349,8 @@
ndev->netdev_ops = &ntb_netdev_ops;
ndev->ethtool_ops = &ntb_ethtool_ops;
- dev->qp = ntb_transport_create_queue(ndev, pdev, &ntb_netdev_handlers);
+ dev->qp = ntb_transport_create_queue(ndev, client_dev,
+ &ntb_netdev_handlers);
if (!dev->qp) {
rc = -EIO;
goto err;
@@ -372,12 +373,17 @@
return rc;
}
-static void ntb_netdev_remove(struct pci_dev *pdev)
+static void ntb_netdev_remove(struct device *client_dev)
{
+ struct ntb_dev *ntb;
struct net_device *ndev;
+ struct pci_dev *pdev;
struct ntb_netdev *dev;
bool found = false;
+ ntb = dev_ntb(client_dev->parent);
+ pdev = ntb->pdev;
+
list_for_each_entry(dev, &dev_list, list) {
if (dev->pdev == pdev) {
found = true;
@@ -396,7 +402,7 @@
free_netdev(ndev);
}
-static struct ntb_client ntb_netdev_client = {
+static struct ntb_transport_client ntb_netdev_client = {
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.probe = ntb_netdev_probe,
@@ -407,16 +413,16 @@
{
int rc;
- rc = ntb_register_client_dev(KBUILD_MODNAME);
+ rc = ntb_transport_register_client_dev(KBUILD_MODNAME);
if (rc)
return rc;
- return ntb_register_client(&ntb_netdev_client);
+ return ntb_transport_register_client(&ntb_netdev_client);
}
module_init(ntb_netdev_init_module);
static void __exit ntb_netdev_exit_module(void)
{
- ntb_unregister_client(&ntb_netdev_client);
- ntb_unregister_client_dev(KBUILD_MODNAME);
+ ntb_transport_unregister_client(&ntb_netdev_client);
+ ntb_transport_unregister_client_dev(KBUILD_MODNAME);
}
module_exit(ntb_netdev_exit_module);
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 095ef3f..46a14cb 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -421,6 +421,8 @@
{
struct phy_device *phydev = to_phy_device(dev);
struct phy_driver *phydrv = to_phy_driver(drv);
+ const int num_ids = ARRAY_SIZE(phydev->c45_ids.device_ids);
+ int i;
if (of_driver_match_device(dev, drv))
return 1;
@@ -428,8 +430,21 @@
if (phydrv->match_phy_device)
return phydrv->match_phy_device(phydev);
- return (phydrv->phy_id & phydrv->phy_id_mask) ==
- (phydev->phy_id & phydrv->phy_id_mask);
+ if (phydev->is_c45) {
+ for (i = 1; i < num_ids; i++) {
+ if (!(phydev->c45_ids.devices_in_package & (1 << i)))
+ continue;
+
+ if ((phydrv->phy_id & phydrv->phy_id_mask) ==
+ (phydev->c45_ids.device_ids[i] &
+ phydrv->phy_id_mask))
+ return 1;
+ }
+ return 0;
+ } else {
+ return (phydrv->phy_id & phydrv->phy_id_mask) ==
+ (phydev->phy_id & phydrv->phy_id_mask);
+ }
}
#ifdef CONFIG_PM
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 1a1c4f7..06a0394 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -111,6 +111,7 @@
#define TUN_FASYNC IFF_ATTACH_QUEUE
/* High bits in flags field are unused. */
#define TUN_VNET_LE 0x80000000
+#define TUN_VNET_BE 0x40000000
#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | \
IFF_MULTI_QUEUE)
@@ -205,14 +206,68 @@
u32 flow_count;
};
+#ifdef CONFIG_TUN_VNET_CROSS_LE
+static inline bool tun_legacy_is_little_endian(struct tun_struct *tun)
+{
+ return tun->flags & TUN_VNET_BE ? false :
+ virtio_legacy_is_little_endian();
+}
+
+static long tun_get_vnet_be(struct tun_struct *tun, int __user *argp)
+{
+ int be = !!(tun->flags & TUN_VNET_BE);
+
+ if (put_user(be, argp))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long tun_set_vnet_be(struct tun_struct *tun, int __user *argp)
+{
+ int be;
+
+ if (get_user(be, argp))
+ return -EFAULT;
+
+ if (be)
+ tun->flags |= TUN_VNET_BE;
+ else
+ tun->flags &= ~TUN_VNET_BE;
+
+ return 0;
+}
+#else
+static inline bool tun_legacy_is_little_endian(struct tun_struct *tun)
+{
+ return virtio_legacy_is_little_endian();
+}
+
+static long tun_get_vnet_be(struct tun_struct *tun, int __user *argp)
+{
+ return -EINVAL;
+}
+
+static long tun_set_vnet_be(struct tun_struct *tun, int __user *argp)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_TUN_VNET_CROSS_LE */
+
+static inline bool tun_is_little_endian(struct tun_struct *tun)
+{
+ return tun->flags & TUN_VNET_LE ||
+ tun_legacy_is_little_endian(tun);
+}
+
static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
{
- return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val);
+ return __virtio16_to_cpu(tun_is_little_endian(tun), val);
}
static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val)
{
- return __cpu_to_virtio16(tun->flags & TUN_VNET_LE, val);
+ return __cpu_to_virtio16(tun_is_little_endian(tun), val);
}
static inline u32 tun_hashfn(u32 rxhash)
@@ -2044,6 +2099,14 @@
tun->flags &= ~TUN_VNET_LE;
break;
+ case TUNGETVNETBE:
+ ret = tun_get_vnet_be(tun, argp);
+ break;
+
+ case TUNSETVNETBE:
+ ret = tun_set_vnet_be(tun, argp);
+ break;
+
case TUNATTACHFILTER:
/* Can be set only for TAPs */
ret = -EINVAL;
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 1991e4a..db40175 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -6,7 +6,7 @@
* Original author: Hans Petter Selasky <hans.petter.selasky@stericsson.com>
*
* USB Host Driver for Network Control Model (NCM)
- * http://www.usb.org/developers/devclass_docs/NCM10.zip
+ * http://www.usb.org/developers/docs/devclass_docs/NCM10_012011.zip
*
* The NCM encoding, decoding and initialization logic
* derives from FreeBSD 8.x. if_cdce.c and if_cdcereg.h
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index f603f36..9d43460 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -757,6 +757,7 @@
{QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */
{QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */
{QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */
+ {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */
{QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */
{QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */
{QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 63c7810..7fbca37 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1828,7 +1828,8 @@
else
vi->hdr_len = sizeof(struct virtio_net_hdr);
- if (virtio_has_feature(vdev, VIRTIO_F_ANY_LAYOUT))
+ if (virtio_has_feature(vdev, VIRTIO_F_ANY_LAYOUT) ||
+ virtio_has_feature(vdev, VIRTIO_F_VERSION_1))
vi->any_header_sg = true;
if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 880d0d6..7d50711 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1566,13 +1566,13 @@
smp_rmb();
while (dc != dp) {
- BUG_ON(gop - queue->tx_unmap_ops > MAX_PENDING_REQS);
+ BUG_ON(gop - queue->tx_unmap_ops >= MAX_PENDING_REQS);
pending_idx =
queue->dealloc_ring[pending_index(dc++)];
- pending_idx_release[gop-queue->tx_unmap_ops] =
+ pending_idx_release[gop - queue->tx_unmap_ops] =
pending_idx;
- queue->pages_to_unmap[gop-queue->tx_unmap_ops] =
+ queue->pages_to_unmap[gop - queue->tx_unmap_ops] =
queue->mmap_pages[pending_idx];
gnttab_set_unmap_op(gop,
idx_to_kaddr(queue, pending_idx),
diff --git a/drivers/ntb/Kconfig b/drivers/ntb/Kconfig
index f69df793..95944e5 100644
--- a/drivers/ntb/Kconfig
+++ b/drivers/ntb/Kconfig
@@ -1,13 +1,28 @@
-config NTB
- tristate "Intel Non-Transparent Bridge support"
- depends on PCI
- depends on X86
- help
- The PCI-E Non-transparent bridge hardware is a point-to-point PCI-E bus
- connecting 2 systems. When configured, writes to the device's PCI
- mapped memory will be mirrored to a buffer on the remote system. The
- ntb Linux driver uses this point-to-point communication as a method to
- transfer data from one system to the other.
+menuconfig NTB
+ tristate "Non-Transparent Bridge support"
+ depends on PCI
+ help
+ The PCI-E Non-transparent bridge hardware is a point-to-point PCI-E bus
+ connecting 2 systems. When configured, writes to the device's PCI
+ mapped memory will be mirrored to a buffer on the remote system. The
+ ntb Linux driver uses this point-to-point communication as a method to
+ transfer data from one system to the other.
- If unsure, say N.
+ If unsure, say N.
+if NTB
+
+source "drivers/ntb/hw/Kconfig"
+
+source "drivers/ntb/test/Kconfig"
+
+config NTB_TRANSPORT
+ tristate "NTB Transport Client"
+ help
+ This is a transport driver that enables connected systems to exchange
+ messages over the ntb hardware. The transport exposes a queue pair api
+ to client drivers.
+
+ If unsure, say N.
+
+endif # NTB
diff --git a/drivers/ntb/Makefile b/drivers/ntb/Makefile
index 15cb59f..1921dec 100644
--- a/drivers/ntb/Makefile
+++ b/drivers/ntb/Makefile
@@ -1,3 +1,2 @@
-obj-$(CONFIG_NTB) += ntb.o
-
-ntb-objs := ntb_hw.o ntb_transport.o
+obj-$(CONFIG_NTB) += ntb.o hw/ test/
+obj-$(CONFIG_NTB_TRANSPORT) += ntb_transport.o
diff --git a/drivers/ntb/hw/Kconfig b/drivers/ntb/hw/Kconfig
new file mode 100644
index 0000000..4d5535c
--- /dev/null
+++ b/drivers/ntb/hw/Kconfig
@@ -0,0 +1 @@
+source "drivers/ntb/hw/intel/Kconfig"
diff --git a/drivers/ntb/hw/Makefile b/drivers/ntb/hw/Makefile
new file mode 100644
index 0000000..175d7c9
--- /dev/null
+++ b/drivers/ntb/hw/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_NTB_INTEL) += intel/
diff --git a/drivers/ntb/hw/intel/Kconfig b/drivers/ntb/hw/intel/Kconfig
new file mode 100644
index 0000000..91f995e
--- /dev/null
+++ b/drivers/ntb/hw/intel/Kconfig
@@ -0,0 +1,7 @@
+config NTB_INTEL
+ tristate "Intel Non-Transparent Bridge support"
+ depends on X86_64
+ help
+ This driver supports Intel NTB on capable Xeon and Atom hardware.
+
+ If unsure, say N.
diff --git a/drivers/ntb/hw/intel/Makefile b/drivers/ntb/hw/intel/Makefile
new file mode 100644
index 0000000..1b43456
--- /dev/null
+++ b/drivers/ntb/hw/intel/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_NTB_INTEL) += ntb_hw_intel.o
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
new file mode 100644
index 0000000..87751cf
--- /dev/null
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -0,0 +1,2274 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Intel PCIe NTB Linux driver
+ *
+ * Contact Information:
+ * Jon Mason <jon.mason@intel.com>
+ */
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/random.h>
+#include <linux/slab.h>
+#include <linux/ntb.h>
+
+#include "ntb_hw_intel.h"
+
+#define NTB_NAME "ntb_hw_intel"
+#define NTB_DESC "Intel(R) PCI-E Non-Transparent Bridge Driver"
+#define NTB_VER "2.0"
+
+MODULE_DESCRIPTION(NTB_DESC);
+MODULE_VERSION(NTB_VER);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Intel Corporation");
+
+#define bar0_off(base, bar) ((base) + ((bar) << 2))
+#define bar2_off(base, bar) bar0_off(base, (bar) - 2)
+
+static const struct intel_ntb_reg atom_reg;
+static const struct intel_ntb_alt_reg atom_pri_reg;
+static const struct intel_ntb_alt_reg atom_sec_reg;
+static const struct intel_ntb_alt_reg atom_b2b_reg;
+static const struct intel_ntb_xlat_reg atom_pri_xlat;
+static const struct intel_ntb_xlat_reg atom_sec_xlat;
+static const struct intel_ntb_reg xeon_reg;
+static const struct intel_ntb_alt_reg xeon_pri_reg;
+static const struct intel_ntb_alt_reg xeon_sec_reg;
+static const struct intel_ntb_alt_reg xeon_b2b_reg;
+static const struct intel_ntb_xlat_reg xeon_pri_xlat;
+static const struct intel_ntb_xlat_reg xeon_sec_xlat;
+static struct intel_b2b_addr xeon_b2b_usd_addr;
+static struct intel_b2b_addr xeon_b2b_dsd_addr;
+static const struct ntb_dev_ops intel_ntb_ops;
+
+static const struct file_operations intel_ntb_debugfs_info;
+static struct dentry *debugfs_dir;
+
+static int b2b_mw_idx = -1;
+module_param(b2b_mw_idx, int, 0644);
+MODULE_PARM_DESC(b2b_mw_idx, "Use this mw idx to access the peer ntb. A "
+ "value of zero or positive starts from first mw idx, and a "
+ "negative value starts from last mw idx. Both sides MUST "
+ "set the same value here!");
+
+static unsigned int b2b_mw_share;
+module_param(b2b_mw_share, uint, 0644);
+MODULE_PARM_DESC(b2b_mw_share, "If the b2b mw is large enough, configure the "
+ "ntb so that the peer ntb only occupies the first half of "
+ "the mw, so the second half can still be used as a mw. Both "
+ "sides MUST set the same value here!");
+
+module_param_named(xeon_b2b_usd_bar2_addr64,
+ xeon_b2b_usd_addr.bar2_addr64, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_usd_bar2_addr64,
+ "XEON B2B USD BAR 2 64-bit address");
+
+module_param_named(xeon_b2b_usd_bar4_addr64,
+ xeon_b2b_usd_addr.bar4_addr64, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_usd_bar2_addr64,
+ "XEON B2B USD BAR 4 64-bit address");
+
+module_param_named(xeon_b2b_usd_bar4_addr32,
+ xeon_b2b_usd_addr.bar4_addr32, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_usd_bar2_addr64,
+ "XEON B2B USD split-BAR 4 32-bit address");
+
+module_param_named(xeon_b2b_usd_bar5_addr32,
+ xeon_b2b_usd_addr.bar5_addr32, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_usd_bar2_addr64,
+ "XEON B2B USD split-BAR 5 32-bit address");
+
+module_param_named(xeon_b2b_dsd_bar2_addr64,
+ xeon_b2b_dsd_addr.bar2_addr64, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_dsd_bar2_addr64,
+ "XEON B2B DSD BAR 2 64-bit address");
+
+module_param_named(xeon_b2b_dsd_bar4_addr64,
+ xeon_b2b_dsd_addr.bar4_addr64, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_dsd_bar2_addr64,
+ "XEON B2B DSD BAR 4 64-bit address");
+
+module_param_named(xeon_b2b_dsd_bar4_addr32,
+ xeon_b2b_dsd_addr.bar4_addr32, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_dsd_bar2_addr64,
+ "XEON B2B DSD split-BAR 4 32-bit address");
+
+module_param_named(xeon_b2b_dsd_bar5_addr32,
+ xeon_b2b_dsd_addr.bar5_addr32, ullong, 0644);
+MODULE_PARM_DESC(xeon_b2b_dsd_bar2_addr64,
+ "XEON B2B DSD split-BAR 5 32-bit address");
+
+#ifndef ioread64
+#ifdef readq
+#define ioread64 readq
+#else
+#define ioread64 _ioread64
+static inline u64 _ioread64(void __iomem *mmio)
+{
+ u64 low, high;
+
+ low = ioread32(mmio);
+ high = ioread32(mmio + sizeof(u32));
+ return low | (high << 32);
+}
+#endif
+#endif
+
+#ifndef iowrite64
+#ifdef writeq
+#define iowrite64 writeq
+#else
+#define iowrite64 _iowrite64
+static inline void _iowrite64(u64 val, void __iomem *mmio)
+{
+ iowrite32(val, mmio);
+ iowrite32(val >> 32, mmio + sizeof(u32));
+}
+#endif
+#endif
+
+static inline int pdev_is_atom(struct pci_dev *pdev)
+{
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_BWD:
+ return 1;
+ }
+ return 0;
+}
+
+static inline int pdev_is_xeon(struct pci_dev *pdev)
+{
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_INTEL_NTB_SS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
+ return 1;
+ }
+ return 0;
+}
+
+static inline void ndev_reset_unsafe_flags(struct intel_ntb_dev *ndev)
+{
+ ndev->unsafe_flags = 0;
+ ndev->unsafe_flags_ignore = 0;
+
+ /* Only B2B has a workaround to avoid SDOORBELL */
+ if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP)
+ if (!ntb_topo_is_b2b(ndev->ntb.topo))
+ ndev->unsafe_flags |= NTB_UNSAFE_DB;
+
+ /* No low level workaround to avoid SB01BASE */
+ if (ndev->hwerr_flags & NTB_HWERR_SB01BASE_LOCKUP) {
+ ndev->unsafe_flags |= NTB_UNSAFE_DB;
+ ndev->unsafe_flags |= NTB_UNSAFE_SPAD;
+ }
+}
+
+static inline int ndev_is_unsafe(struct intel_ntb_dev *ndev,
+ unsigned long flag)
+{
+ return !!(flag & ndev->unsafe_flags & ~ndev->unsafe_flags_ignore);
+}
+
+static inline int ndev_ignore_unsafe(struct intel_ntb_dev *ndev,
+ unsigned long flag)
+{
+ flag &= ndev->unsafe_flags;
+ ndev->unsafe_flags_ignore |= flag;
+
+ return !!flag;
+}
+
+static int ndev_mw_to_bar(struct intel_ntb_dev *ndev, int idx)
+{
+ if (idx < 0 || idx > ndev->mw_count)
+ return -EINVAL;
+ return ndev->reg->mw_bar[idx];
+}
+
+static inline int ndev_db_addr(struct intel_ntb_dev *ndev,
+ phys_addr_t *db_addr, resource_size_t *db_size,
+ phys_addr_t reg_addr, unsigned long reg)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_DB))
+ pr_warn_once("%s: NTB unsafe doorbell access", __func__);
+
+ if (db_addr) {
+ *db_addr = reg_addr + reg;
+ dev_dbg(ndev_dev(ndev), "Peer db addr %llx\n", *db_addr);
+ }
+
+ if (db_size) {
+ *db_size = ndev->reg->db_size;
+ dev_dbg(ndev_dev(ndev), "Peer db size %llx\n", *db_size);
+ }
+
+ return 0;
+}
+
+static inline u64 ndev_db_read(struct intel_ntb_dev *ndev,
+ void __iomem *mmio)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_DB))
+ pr_warn_once("%s: NTB unsafe doorbell access", __func__);
+
+ return ndev->reg->db_ioread(mmio);
+}
+
+static inline int ndev_db_write(struct intel_ntb_dev *ndev, u64 db_bits,
+ void __iomem *mmio)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_DB))
+ pr_warn_once("%s: NTB unsafe doorbell access", __func__);
+
+ if (db_bits & ~ndev->db_valid_mask)
+ return -EINVAL;
+
+ ndev->reg->db_iowrite(db_bits, mmio);
+
+ return 0;
+}
+
+static inline int ndev_db_set_mask(struct intel_ntb_dev *ndev, u64 db_bits,
+ void __iomem *mmio)
+{
+ unsigned long irqflags;
+
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_DB))
+ pr_warn_once("%s: NTB unsafe doorbell access", __func__);
+
+ if (db_bits & ~ndev->db_valid_mask)
+ return -EINVAL;
+
+ spin_lock_irqsave(&ndev->db_mask_lock, irqflags);
+ {
+ ndev->db_mask |= db_bits;
+ ndev->reg->db_iowrite(ndev->db_mask, mmio);
+ }
+ spin_unlock_irqrestore(&ndev->db_mask_lock, irqflags);
+
+ return 0;
+}
+
+static inline int ndev_db_clear_mask(struct intel_ntb_dev *ndev, u64 db_bits,
+ void __iomem *mmio)
+{
+ unsigned long irqflags;
+
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_DB))
+ pr_warn_once("%s: NTB unsafe doorbell access", __func__);
+
+ if (db_bits & ~ndev->db_valid_mask)
+ return -EINVAL;
+
+ spin_lock_irqsave(&ndev->db_mask_lock, irqflags);
+ {
+ ndev->db_mask &= ~db_bits;
+ ndev->reg->db_iowrite(ndev->db_mask, mmio);
+ }
+ spin_unlock_irqrestore(&ndev->db_mask_lock, irqflags);
+
+ return 0;
+}
+
+static inline int ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector)
+{
+ u64 shift, mask;
+
+ shift = ndev->db_vec_shift;
+ mask = BIT_ULL(shift) - 1;
+
+ return mask << (shift * db_vector);
+}
+
+static inline int ndev_spad_addr(struct intel_ntb_dev *ndev, int idx,
+ phys_addr_t *spad_addr, phys_addr_t reg_addr,
+ unsigned long reg)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_SPAD))
+ pr_warn_once("%s: NTB unsafe scratchpad access", __func__);
+
+ if (idx < 0 || idx >= ndev->spad_count)
+ return -EINVAL;
+
+ if (spad_addr) {
+ *spad_addr = reg_addr + reg + (idx << 2);
+ dev_dbg(ndev_dev(ndev), "Peer spad addr %llx\n", *spad_addr);
+ }
+
+ return 0;
+}
+
+static inline u32 ndev_spad_read(struct intel_ntb_dev *ndev, int idx,
+ void __iomem *mmio)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_SPAD))
+ pr_warn_once("%s: NTB unsafe scratchpad access", __func__);
+
+ if (idx < 0 || idx >= ndev->spad_count)
+ return 0;
+
+ return ioread32(mmio + (idx << 2));
+}
+
+static inline int ndev_spad_write(struct intel_ntb_dev *ndev, int idx, u32 val,
+ void __iomem *mmio)
+{
+ if (ndev_is_unsafe(ndev, NTB_UNSAFE_SPAD))
+ pr_warn_once("%s: NTB unsafe scratchpad access", __func__);
+
+ if (idx < 0 || idx >= ndev->spad_count)
+ return -EINVAL;
+
+ iowrite32(val, mmio + (idx << 2));
+
+ return 0;
+}
+
+static irqreturn_t ndev_interrupt(struct intel_ntb_dev *ndev, int vec)
+{
+ u64 vec_mask;
+
+ vec_mask = ndev_vec_mask(ndev, vec);
+
+ dev_dbg(ndev_dev(ndev), "vec %d vec_mask %llx\n", vec, vec_mask);
+
+ ndev->last_ts = jiffies;
+
+ if (vec_mask & ndev->db_link_mask) {
+ if (ndev->reg->poll_link(ndev))
+ ntb_link_event(&ndev->ntb);
+ }
+
+ if (vec_mask & ndev->db_valid_mask)
+ ntb_db_event(&ndev->ntb, vec);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t ndev_vec_isr(int irq, void *dev)
+{
+ struct intel_ntb_vec *nvec = dev;
+
+ return ndev_interrupt(nvec->ndev, nvec->num);
+}
+
+static irqreturn_t ndev_irq_isr(int irq, void *dev)
+{
+ struct intel_ntb_dev *ndev = dev;
+
+ return ndev_interrupt(ndev, irq - ndev_pdev(ndev)->irq);
+}
+
+static int ndev_init_isr(struct intel_ntb_dev *ndev,
+ int msix_min, int msix_max,
+ int msix_shift, int total_shift)
+{
+ struct pci_dev *pdev;
+ int rc, i, msix_count, node;
+
+ pdev = ndev_pdev(ndev);
+
+ node = dev_to_node(&pdev->dev);
+
+ /* Mask all doorbell interrupts */
+ ndev->db_mask = ndev->db_valid_mask;
+ ndev->reg->db_iowrite(ndev->db_mask,
+ ndev->self_mmio +
+ ndev->self_reg->db_mask);
+
+ /* Try to set up msix irq */
+
+ ndev->vec = kzalloc_node(msix_max * sizeof(*ndev->vec),
+ GFP_KERNEL, node);
+ if (!ndev->vec)
+ goto err_msix_vec_alloc;
+
+ ndev->msix = kzalloc_node(msix_max * sizeof(*ndev->msix),
+ GFP_KERNEL, node);
+ if (!ndev->msix)
+ goto err_msix_alloc;
+
+ for (i = 0; i < msix_max; ++i)
+ ndev->msix[i].entry = i;
+
+ msix_count = pci_enable_msix_range(pdev, ndev->msix,
+ msix_min, msix_max);
+ if (msix_count < 0)
+ goto err_msix_enable;
+
+ for (i = 0; i < msix_count; ++i) {
+ ndev->vec[i].ndev = ndev;
+ ndev->vec[i].num = i;
+ rc = request_irq(ndev->msix[i].vector, ndev_vec_isr, 0,
+ "ndev_vec_isr", &ndev->vec[i]);
+ if (rc)
+ goto err_msix_request;
+ }
+
+ dev_dbg(ndev_dev(ndev), "Using msix interrupts\n");
+ ndev->db_vec_count = msix_count;
+ ndev->db_vec_shift = msix_shift;
+ return 0;
+
+err_msix_request:
+ while (i-- > 0)
+ free_irq(ndev->msix[i].vector, ndev);
+ pci_disable_msix(pdev);
+err_msix_enable:
+ kfree(ndev->msix);
+err_msix_alloc:
+ kfree(ndev->vec);
+err_msix_vec_alloc:
+ ndev->msix = NULL;
+ ndev->vec = NULL;
+
+ /* Try to set up msi irq */
+
+ rc = pci_enable_msi(pdev);
+ if (rc)
+ goto err_msi_enable;
+
+ rc = request_irq(pdev->irq, ndev_irq_isr, 0,
+ "ndev_irq_isr", ndev);
+ if (rc)
+ goto err_msi_request;
+
+ dev_dbg(ndev_dev(ndev), "Using msi interrupts\n");
+ ndev->db_vec_count = 1;
+ ndev->db_vec_shift = total_shift;
+ return 0;
+
+err_msi_request:
+ pci_disable_msi(pdev);
+err_msi_enable:
+
+ /* Try to set up intx irq */
+
+ pci_intx(pdev, 1);
+
+ rc = request_irq(pdev->irq, ndev_irq_isr, IRQF_SHARED,
+ "ndev_irq_isr", ndev);
+ if (rc)
+ goto err_intx_request;
+
+ dev_dbg(ndev_dev(ndev), "Using intx interrupts\n");
+ ndev->db_vec_count = 1;
+ ndev->db_vec_shift = total_shift;
+ return 0;
+
+err_intx_request:
+ return rc;
+}
+
+static void ndev_deinit_isr(struct intel_ntb_dev *ndev)
+{
+ struct pci_dev *pdev;
+ int i;
+
+ pdev = ndev_pdev(ndev);
+
+ /* Mask all doorbell interrupts */
+ ndev->db_mask = ndev->db_valid_mask;
+ ndev->reg->db_iowrite(ndev->db_mask,
+ ndev->self_mmio +
+ ndev->self_reg->db_mask);
+
+ if (ndev->msix) {
+ i = ndev->db_vec_count;
+ while (i--)
+ free_irq(ndev->msix[i].vector, &ndev->vec[i]);
+ pci_disable_msix(pdev);
+ kfree(ndev->msix);
+ kfree(ndev->vec);
+ } else {
+ free_irq(pdev->irq, ndev);
+ if (pci_dev_msi_enabled(pdev))
+ pci_disable_msi(pdev);
+ }
+}
+
+static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf,
+ size_t count, loff_t *offp)
+{
+ struct intel_ntb_dev *ndev;
+ void __iomem *mmio;
+ char *buf;
+ size_t buf_size;
+ ssize_t ret, off;
+ union { u64 v64; u32 v32; u16 v16; } u;
+
+ ndev = filp->private_data;
+ mmio = ndev->self_mmio;
+
+ buf_size = min(count, 0x800ul);
+
+ buf = kmalloc(buf_size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ off = 0;
+
+ off += scnprintf(buf + off, buf_size - off,
+ "NTB Device Information:\n");
+
+ off += scnprintf(buf + off, buf_size - off,
+ "Connection Topology -\t%s\n",
+ ntb_topo_string(ndev->ntb.topo));
+
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B Offset -\t\t%#lx\n", ndev->b2b_off);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B MW Idx -\t\t%d\n", ndev->b2b_idx);
+ off += scnprintf(buf + off, buf_size - off,
+ "BAR4 Split -\t\t%s\n",
+ ndev->bar4_split ? "yes" : "no");
+
+ off += scnprintf(buf + off, buf_size - off,
+ "NTB CTL -\t\t%#06x\n", ndev->ntb_ctl);
+ off += scnprintf(buf + off, buf_size - off,
+ "LNK STA -\t\t%#06x\n", ndev->lnk_sta);
+
+ if (!ndev->reg->link_is_up(ndev)) {
+ off += scnprintf(buf + off, buf_size - off,
+ "Link Status -\t\tDown\n");
+ } else {
+ off += scnprintf(buf + off, buf_size - off,
+ "Link Status -\t\tUp\n");
+ off += scnprintf(buf + off, buf_size - off,
+ "Link Speed -\t\tPCI-E Gen %u\n",
+ NTB_LNK_STA_SPEED(ndev->lnk_sta));
+ off += scnprintf(buf + off, buf_size - off,
+ "Link Width -\t\tx%u\n",
+ NTB_LNK_STA_WIDTH(ndev->lnk_sta));
+ }
+
+ off += scnprintf(buf + off, buf_size - off,
+ "Memory Window Count -\t%u\n", ndev->mw_count);
+ off += scnprintf(buf + off, buf_size - off,
+ "Scratchpad Count -\t%u\n", ndev->spad_count);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Count -\t%u\n", ndev->db_count);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Vector Count -\t%u\n", ndev->db_vec_count);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Vector Shift -\t%u\n", ndev->db_vec_shift);
+
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Valid Mask -\t%#llx\n", ndev->db_valid_mask);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Link Mask -\t%#llx\n", ndev->db_link_mask);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Mask Cached -\t%#llx\n", ndev->db_mask);
+
+ u.v64 = ndev_db_read(ndev, mmio + ndev->self_reg->db_mask);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Mask -\t\t%#llx\n", u.v64);
+
+ u.v64 = ndev_db_read(ndev, mmio + ndev->self_reg->db_bell);
+ off += scnprintf(buf + off, buf_size - off,
+ "Doorbell Bell -\t\t%#llx\n", u.v64);
+
+ off += scnprintf(buf + off, buf_size - off,
+ "\nNTB Incoming XLAT:\n");
+
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 2));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT23 -\t\t%#018llx\n", u.v64);
+
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT4 -\t\t\t%#06x\n", u.v32);
+
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 5));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT45 -\t\t%#018llx\n", u.v64);
+ }
+
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 2));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT23 -\t\t\t%#018llx\n", u.v64);
+
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT4 -\t\t\t%#06x\n", u.v32);
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 5));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT45 -\t\t\t%#018llx\n", u.v64);
+ }
+
+ if (pdev_is_xeon(ndev->ntb.pdev)) {
+ if (ntb_topo_is_b2b(ndev->ntb.topo)) {
+ off += scnprintf(buf + off, buf_size - off,
+ "\nNTB Outgoing B2B XLAT:\n");
+
+ u.v64 = ioread64(mmio + XEON_PBAR23XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT23 -\t\t%#018llx\n", u.v64);
+
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_PBAR4XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT4 -\t\t%#06x\n",
+ u.v32);
+ u.v32 = ioread32(mmio + XEON_PBAR5XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT5 -\t\t%#06x\n",
+ u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT45 -\t\t%#018llx\n",
+ u.v64);
+ }
+
+ u.v64 = ioread64(mmio + XEON_PBAR23LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT23 -\t\t%#018llx\n", u.v64);
+
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_PBAR4LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT4 -\t\t%#06x\n",
+ u.v32);
+ u.v32 = ioread32(mmio + XEON_PBAR5LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT5 -\t\t%#06x\n",
+ u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_PBAR45LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT45 -\t\t%#018llx\n",
+ u.v64);
+ }
+
+ off += scnprintf(buf + off, buf_size - off,
+ "\nNTB Secondary BAR:\n");
+
+ u.v64 = ioread64(mmio + XEON_SBAR0BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR01 -\t\t%#018llx\n", u.v64);
+
+ u.v64 = ioread64(mmio + XEON_SBAR23BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR23 -\t\t%#018llx\n", u.v64);
+
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_SBAR4BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR4 -\t\t\t%#06x\n", u.v32);
+ u.v32 = ioread32(mmio + XEON_SBAR5BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR45 -\t\t%#018llx\n",
+ u.v64);
+ }
+ }
+
+ off += scnprintf(buf + off, buf_size - off,
+ "\nXEON NTB Statistics:\n");
+
+ u.v16 = ioread16(mmio + XEON_USMEMMISS_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "Upstream Memory Miss -\t%u\n", u.v16);
+
+ off += scnprintf(buf + off, buf_size - off,
+ "\nXEON NTB Hardware Errors:\n");
+
+ if (!pci_read_config_word(ndev->ntb.pdev,
+ XEON_DEVSTS_OFFSET, &u.v16))
+ off += scnprintf(buf + off, buf_size - off,
+ "DEVSTS -\t\t%#06x\n", u.v16);
+
+ if (!pci_read_config_word(ndev->ntb.pdev,
+ XEON_LINK_STATUS_OFFSET, &u.v16))
+ off += scnprintf(buf + off, buf_size - off,
+ "LNKSTS -\t\t%#06x\n", u.v16);
+
+ if (!pci_read_config_dword(ndev->ntb.pdev,
+ XEON_UNCERRSTS_OFFSET, &u.v32))
+ off += scnprintf(buf + off, buf_size - off,
+ "UNCERRSTS -\t\t%#06x\n", u.v32);
+
+ if (!pci_read_config_dword(ndev->ntb.pdev,
+ XEON_CORERRSTS_OFFSET, &u.v32))
+ off += scnprintf(buf + off, buf_size - off,
+ "CORERRSTS -\t\t%#06x\n", u.v32);
+ }
+
+ ret = simple_read_from_buffer(ubuf, count, offp, buf, off);
+ kfree(buf);
+ return ret;
+}
+
+static void ndev_init_debugfs(struct intel_ntb_dev *ndev)
+{
+ if (!debugfs_dir) {
+ ndev->debugfs_dir = NULL;
+ ndev->debugfs_info = NULL;
+ } else {
+ ndev->debugfs_dir =
+ debugfs_create_dir(ndev_name(ndev), debugfs_dir);
+ if (!ndev->debugfs_dir)
+ ndev->debugfs_info = NULL;
+ else
+ ndev->debugfs_info =
+ debugfs_create_file("info", S_IRUSR,
+ ndev->debugfs_dir, ndev,
+ &intel_ntb_debugfs_info);
+ }
+}
+
+static void ndev_deinit_debugfs(struct intel_ntb_dev *ndev)
+{
+ debugfs_remove_recursive(ndev->debugfs_dir);
+}
+
+static int intel_ntb_mw_count(struct ntb_dev *ntb)
+{
+ return ntb_ndev(ntb)->mw_count;
+}
+
+static int intel_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
+ phys_addr_t *base,
+ resource_size_t *size,
+ resource_size_t *align,
+ resource_size_t *align_size)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+ int bar;
+
+ if (idx >= ndev->b2b_idx && !ndev->b2b_off)
+ idx += 1;
+
+ bar = ndev_mw_to_bar(ndev, idx);
+ if (bar < 0)
+ return bar;
+
+ if (base)
+ *base = pci_resource_start(ndev->ntb.pdev, bar) +
+ (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+ if (size)
+ *size = pci_resource_len(ndev->ntb.pdev, bar) -
+ (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+ if (align)
+ *align = pci_resource_len(ndev->ntb.pdev, bar);
+
+ if (align_size)
+ *align_size = 1;
+
+ return 0;
+}
+
+static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
+ dma_addr_t addr, resource_size_t size)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+ unsigned long base_reg, xlat_reg, limit_reg;
+ resource_size_t bar_size, mw_size;
+ void __iomem *mmio;
+ u64 base, limit, reg_val;
+ int bar;
+
+ if (idx >= ndev->b2b_idx && !ndev->b2b_off)
+ idx += 1;
+
+ bar = ndev_mw_to_bar(ndev, idx);
+ if (bar < 0)
+ return bar;
+
+ bar_size = pci_resource_len(ndev->ntb.pdev, bar);
+
+ if (idx == ndev->b2b_idx)
+ mw_size = bar_size - ndev->b2b_off;
+ else
+ mw_size = bar_size;
+
+ /* hardware requires that addr is aligned to bar size */
+ if (addr & (bar_size - 1))
+ return -EINVAL;
+
+ /* make sure the range fits in the usable mw size */
+ if (size > mw_size)
+ return -EINVAL;
+
+ mmio = ndev->self_mmio;
+ base_reg = bar0_off(ndev->xlat_reg->bar0_base, bar);
+ xlat_reg = bar2_off(ndev->xlat_reg->bar2_xlat, bar);
+ limit_reg = bar2_off(ndev->xlat_reg->bar2_limit, bar);
+
+ if (bar < 4 || !ndev->bar4_split) {
+ base = ioread64(mmio + base_reg);
+
+ /* Set the limit if supported, if size is not mw_size */
+ if (limit_reg && size != mw_size)
+ limit = base + size;
+ else
+ limit = 0;
+
+ /* set and verify setting the translation address */
+ iowrite64(addr, mmio + xlat_reg);
+ reg_val = ioread64(mmio + xlat_reg);
+ if (reg_val != addr) {
+ iowrite64(0, mmio + xlat_reg);
+ return -EIO;
+ }
+
+ /* set and verify setting the limit */
+ iowrite64(limit, mmio + limit_reg);
+ reg_val = ioread64(mmio + limit_reg);
+ if (reg_val != limit) {
+ iowrite64(base, mmio + limit_reg);
+ iowrite64(0, mmio + xlat_reg);
+ return -EIO;
+ }
+ } else {
+ /* split bar addr range must all be 32 bit */
+ if (addr & (~0ull << 32))
+ return -EINVAL;
+ if ((addr + size) & (~0ull << 32))
+ return -EINVAL;
+
+ base = ioread32(mmio + base_reg);
+
+ /* Set the limit if supported, if size is not mw_size */
+ if (limit_reg && size != mw_size)
+ limit = base + size;
+ else
+ limit = 0;
+
+ /* set and verify setting the translation address */
+ iowrite32(addr, mmio + xlat_reg);
+ reg_val = ioread32(mmio + xlat_reg);
+ if (reg_val != addr) {
+ iowrite32(0, mmio + xlat_reg);
+ return -EIO;
+ }
+
+ /* set and verify setting the limit */
+ iowrite32(limit, mmio + limit_reg);
+ reg_val = ioread32(mmio + limit_reg);
+ if (reg_val != limit) {
+ iowrite32(base, mmio + limit_reg);
+ iowrite32(0, mmio + xlat_reg);
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
+static int intel_ntb_link_is_up(struct ntb_dev *ntb,
+ enum ntb_speed *speed,
+ enum ntb_width *width)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ if (ndev->reg->link_is_up(ndev)) {
+ if (speed)
+ *speed = NTB_LNK_STA_SPEED(ndev->lnk_sta);
+ if (width)
+ *width = NTB_LNK_STA_WIDTH(ndev->lnk_sta);
+ return 1;
+ } else {
+ /* TODO MAYBE: is it possible to observe the link speed and
+ * width while link is training? */
+ if (speed)
+ *speed = NTB_SPEED_NONE;
+ if (width)
+ *width = NTB_WIDTH_NONE;
+ return 0;
+ }
+}
+
+static int intel_ntb_link_enable(struct ntb_dev *ntb,
+ enum ntb_speed max_speed,
+ enum ntb_width max_width)
+{
+ struct intel_ntb_dev *ndev;
+ u32 ntb_ctl;
+
+ ndev = container_of(ntb, struct intel_ntb_dev, ntb);
+
+ if (ndev->ntb.topo == NTB_TOPO_SEC)
+ return -EINVAL;
+
+ dev_dbg(ndev_dev(ndev),
+ "Enabling link with max_speed %d max_width %d\n",
+ max_speed, max_width);
+ if (max_speed != NTB_SPEED_AUTO)
+ dev_dbg(ndev_dev(ndev), "ignoring max_speed %d\n", max_speed);
+ if (max_width != NTB_WIDTH_AUTO)
+ dev_dbg(ndev_dev(ndev), "ignoring max_width %d\n", max_width);
+
+ ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
+ ntb_ctl &= ~(NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK);
+ ntb_ctl |= NTB_CTL_P2S_BAR2_SNOOP | NTB_CTL_S2P_BAR2_SNOOP;
+ ntb_ctl |= NTB_CTL_P2S_BAR4_SNOOP | NTB_CTL_S2P_BAR4_SNOOP;
+ if (ndev->bar4_split)
+ ntb_ctl |= NTB_CTL_P2S_BAR5_SNOOP | NTB_CTL_S2P_BAR5_SNOOP;
+ iowrite32(ntb_ctl, ndev->self_mmio + ndev->reg->ntb_ctl);
+
+ return 0;
+}
+
+static int intel_ntb_link_disable(struct ntb_dev *ntb)
+{
+ struct intel_ntb_dev *ndev;
+ u32 ntb_cntl;
+
+ ndev = container_of(ntb, struct intel_ntb_dev, ntb);
+
+ if (ndev->ntb.topo == NTB_TOPO_SEC)
+ return -EINVAL;
+
+ dev_dbg(ndev_dev(ndev), "Disabling link\n");
+
+ /* Bring NTB link down */
+ ntb_cntl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
+ ntb_cntl &= ~(NTB_CTL_P2S_BAR2_SNOOP | NTB_CTL_S2P_BAR2_SNOOP);
+ ntb_cntl &= ~(NTB_CTL_P2S_BAR4_SNOOP | NTB_CTL_S2P_BAR4_SNOOP);
+ if (ndev->bar4_split)
+ ntb_cntl &= ~(NTB_CTL_P2S_BAR5_SNOOP | NTB_CTL_S2P_BAR5_SNOOP);
+ ntb_cntl |= NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK;
+ iowrite32(ntb_cntl, ndev->self_mmio + ndev->reg->ntb_ctl);
+
+ return 0;
+}
+
+static int intel_ntb_db_is_unsafe(struct ntb_dev *ntb)
+{
+ return ndev_ignore_unsafe(ntb_ndev(ntb), NTB_UNSAFE_DB);
+}
+
+static u64 intel_ntb_db_valid_mask(struct ntb_dev *ntb)
+{
+ return ntb_ndev(ntb)->db_valid_mask;
+}
+
+static int intel_ntb_db_vector_count(struct ntb_dev *ntb)
+{
+ struct intel_ntb_dev *ndev;
+
+ ndev = container_of(ntb, struct intel_ntb_dev, ntb);
+
+ return ndev->db_vec_count;
+}
+
+static u64 intel_ntb_db_vector_mask(struct ntb_dev *ntb, int db_vector)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ if (db_vector < 0 || db_vector > ndev->db_vec_count)
+ return 0;
+
+ return ndev->db_valid_mask & ndev_vec_mask(ndev, db_vector);
+}
+
+static u64 intel_ntb_db_read(struct ntb_dev *ntb)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_read(ndev,
+ ndev->self_mmio +
+ ndev->self_reg->db_bell);
+}
+
+static int intel_ntb_db_clear(struct ntb_dev *ntb, u64 db_bits)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_write(ndev, db_bits,
+ ndev->self_mmio +
+ ndev->self_reg->db_bell);
+}
+
+static int intel_ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_set_mask(ndev, db_bits,
+ ndev->self_mmio +
+ ndev->self_reg->db_mask);
+}
+
+static int intel_ntb_db_clear_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_clear_mask(ndev, db_bits,
+ ndev->self_mmio +
+ ndev->self_reg->db_mask);
+}
+
+static int intel_ntb_peer_db_addr(struct ntb_dev *ntb,
+ phys_addr_t *db_addr,
+ resource_size_t *db_size)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_addr(ndev, db_addr, db_size, ndev->peer_addr,
+ ndev->peer_reg->db_bell);
+}
+
+static int intel_ntb_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_db_write(ndev, db_bits,
+ ndev->peer_mmio +
+ ndev->peer_reg->db_bell);
+}
+
+static int intel_ntb_spad_is_unsafe(struct ntb_dev *ntb)
+{
+ return ndev_ignore_unsafe(ntb_ndev(ntb), NTB_UNSAFE_SPAD);
+}
+
+static int intel_ntb_spad_count(struct ntb_dev *ntb)
+{
+ struct intel_ntb_dev *ndev;
+
+ ndev = container_of(ntb, struct intel_ntb_dev, ntb);
+
+ return ndev->spad_count;
+}
+
+static u32 intel_ntb_spad_read(struct ntb_dev *ntb, int idx)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_spad_read(ndev, idx,
+ ndev->self_mmio +
+ ndev->self_reg->spad);
+}
+
+static int intel_ntb_spad_write(struct ntb_dev *ntb,
+ int idx, u32 val)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_spad_write(ndev, idx, val,
+ ndev->self_mmio +
+ ndev->self_reg->spad);
+}
+
+static int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
+ phys_addr_t *spad_addr)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_spad_addr(ndev, idx, spad_addr, ndev->peer_addr,
+ ndev->peer_reg->spad);
+}
+
+static u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_spad_read(ndev, idx,
+ ndev->peer_mmio +
+ ndev->peer_reg->spad);
+}
+
+static int intel_ntb_peer_spad_write(struct ntb_dev *ntb,
+ int idx, u32 val)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ return ndev_spad_write(ndev, idx, val,
+ ndev->peer_mmio +
+ ndev->peer_reg->spad);
+}
+
+/* ATOM */
+
+static u64 atom_db_ioread(void __iomem *mmio)
+{
+ return ioread64(mmio);
+}
+
+static void atom_db_iowrite(u64 bits, void __iomem *mmio)
+{
+ iowrite64(bits, mmio);
+}
+
+static int atom_poll_link(struct intel_ntb_dev *ndev)
+{
+ u32 ntb_ctl;
+
+ ntb_ctl = ioread32(ndev->self_mmio + ATOM_NTBCNTL_OFFSET);
+
+ if (ntb_ctl == ndev->ntb_ctl)
+ return 0;
+
+ ndev->ntb_ctl = ntb_ctl;
+
+ ndev->lnk_sta = ioread32(ndev->self_mmio + ATOM_LINK_STATUS_OFFSET);
+
+ return 1;
+}
+
+static int atom_link_is_up(struct intel_ntb_dev *ndev)
+{
+ return ATOM_NTB_CTL_ACTIVE(ndev->ntb_ctl);
+}
+
+static int atom_link_is_err(struct intel_ntb_dev *ndev)
+{
+ if (ioread32(ndev->self_mmio + ATOM_LTSSMSTATEJMP_OFFSET)
+ & ATOM_LTSSMSTATEJMP_FORCEDETECT)
+ return 1;
+
+ if (ioread32(ndev->self_mmio + ATOM_IBSTERRRCRVSTS0_OFFSET)
+ & ATOM_IBIST_ERR_OFLOW)
+ return 1;
+
+ return 0;
+}
+
+static inline enum ntb_topo atom_ppd_topo(struct intel_ntb_dev *ndev, u32 ppd)
+{
+ switch (ppd & ATOM_PPD_TOPO_MASK) {
+ case ATOM_PPD_TOPO_B2B_USD:
+ dev_dbg(ndev_dev(ndev), "PPD %d B2B USD\n", ppd);
+ return NTB_TOPO_B2B_USD;
+
+ case ATOM_PPD_TOPO_B2B_DSD:
+ dev_dbg(ndev_dev(ndev), "PPD %d B2B DSD\n", ppd);
+ return NTB_TOPO_B2B_DSD;
+
+ case ATOM_PPD_TOPO_PRI_USD:
+ case ATOM_PPD_TOPO_PRI_DSD: /* accept bogus PRI_DSD */
+ case ATOM_PPD_TOPO_SEC_USD:
+ case ATOM_PPD_TOPO_SEC_DSD: /* accept bogus SEC_DSD */
+ dev_dbg(ndev_dev(ndev), "PPD %d non B2B disabled\n", ppd);
+ return NTB_TOPO_NONE;
+ }
+
+ dev_dbg(ndev_dev(ndev), "PPD %d invalid\n", ppd);
+ return NTB_TOPO_NONE;
+}
+
+static void atom_link_hb(struct work_struct *work)
+{
+ struct intel_ntb_dev *ndev = hb_ndev(work);
+ unsigned long poll_ts;
+ void __iomem *mmio;
+ u32 status32;
+
+ poll_ts = ndev->last_ts + ATOM_LINK_HB_TIMEOUT;
+
+ /* Delay polling the link status if an interrupt was received,
+ * unless the cached link status says the link is down.
+ */
+ if (time_after(poll_ts, jiffies) && atom_link_is_up(ndev)) {
+ schedule_delayed_work(&ndev->hb_timer, poll_ts - jiffies);
+ return;
+ }
+
+ if (atom_poll_link(ndev))
+ ntb_link_event(&ndev->ntb);
+
+ if (atom_link_is_up(ndev) || !atom_link_is_err(ndev)) {
+ schedule_delayed_work(&ndev->hb_timer, ATOM_LINK_HB_TIMEOUT);
+ return;
+ }
+
+ /* Link is down with error: recover the link! */
+
+ mmio = ndev->self_mmio;
+
+ /* Driver resets the NTB ModPhy lanes - magic! */
+ iowrite8(0xe0, mmio + ATOM_MODPHY_PCSREG6);
+ iowrite8(0x40, mmio + ATOM_MODPHY_PCSREG4);
+ iowrite8(0x60, mmio + ATOM_MODPHY_PCSREG4);
+ iowrite8(0x60, mmio + ATOM_MODPHY_PCSREG6);
+
+ /* Driver waits 100ms to allow the NTB ModPhy to settle */
+ msleep(100);
+
+ /* Clear AER Errors, write to clear */
+ status32 = ioread32(mmio + ATOM_ERRCORSTS_OFFSET);
+ dev_dbg(ndev_dev(ndev), "ERRCORSTS = %x\n", status32);
+ status32 &= PCI_ERR_COR_REP_ROLL;
+ iowrite32(status32, mmio + ATOM_ERRCORSTS_OFFSET);
+
+ /* Clear unexpected electrical idle event in LTSSM, write to clear */
+ status32 = ioread32(mmio + ATOM_LTSSMERRSTS0_OFFSET);
+ dev_dbg(ndev_dev(ndev), "LTSSMERRSTS0 = %x\n", status32);
+ status32 |= ATOM_LTSSMERRSTS0_UNEXPECTEDEI;
+ iowrite32(status32, mmio + ATOM_LTSSMERRSTS0_OFFSET);
+
+ /* Clear DeSkew Buffer error, write to clear */
+ status32 = ioread32(mmio + ATOM_DESKEWSTS_OFFSET);
+ dev_dbg(ndev_dev(ndev), "DESKEWSTS = %x\n", status32);
+ status32 |= ATOM_DESKEWSTS_DBERR;
+ iowrite32(status32, mmio + ATOM_DESKEWSTS_OFFSET);
+
+ status32 = ioread32(mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
+ dev_dbg(ndev_dev(ndev), "IBSTERRRCRVSTS0 = %x\n", status32);
+ status32 &= ATOM_IBIST_ERR_OFLOW;
+ iowrite32(status32, mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
+
+ /* Releases the NTB state machine to allow the link to retrain */
+ status32 = ioread32(mmio + ATOM_LTSSMSTATEJMP_OFFSET);
+ dev_dbg(ndev_dev(ndev), "LTSSMSTATEJMP = %x\n", status32);
+ status32 &= ~ATOM_LTSSMSTATEJMP_FORCEDETECT;
+ iowrite32(status32, mmio + ATOM_LTSSMSTATEJMP_OFFSET);
+
+ /* There is a potential race between the 2 NTB devices recovering at the
+ * same time. If the times are the same, the link will not recover and
+ * the driver will be stuck in this loop forever. Add a random interval
+ * to the recovery time to prevent this race.
+ */
+ schedule_delayed_work(&ndev->hb_timer, ATOM_LINK_RECOVERY_TIME
+ + prandom_u32() % ATOM_LINK_RECOVERY_TIME);
+}
+
+static int atom_init_isr(struct intel_ntb_dev *ndev)
+{
+ int rc;
+
+ rc = ndev_init_isr(ndev, 1, ATOM_DB_MSIX_VECTOR_COUNT,
+ ATOM_DB_MSIX_VECTOR_SHIFT, ATOM_DB_TOTAL_SHIFT);
+ if (rc)
+ return rc;
+
+ /* ATOM doesn't have link status interrupt, poll on that platform */
+ ndev->last_ts = jiffies;
+ INIT_DELAYED_WORK(&ndev->hb_timer, atom_link_hb);
+ schedule_delayed_work(&ndev->hb_timer, ATOM_LINK_HB_TIMEOUT);
+
+ return 0;
+}
+
+static void atom_deinit_isr(struct intel_ntb_dev *ndev)
+{
+ cancel_delayed_work_sync(&ndev->hb_timer);
+ ndev_deinit_isr(ndev);
+}
+
+static int atom_init_ntb(struct intel_ntb_dev *ndev)
+{
+ ndev->mw_count = ATOM_MW_COUNT;
+ ndev->spad_count = ATOM_SPAD_COUNT;
+ ndev->db_count = ATOM_DB_COUNT;
+
+ switch (ndev->ntb.topo) {
+ case NTB_TOPO_B2B_USD:
+ case NTB_TOPO_B2B_DSD:
+ ndev->self_reg = &atom_pri_reg;
+ ndev->peer_reg = &atom_b2b_reg;
+ ndev->xlat_reg = &atom_sec_xlat;
+
+ /* Enable Bus Master and Memory Space on the secondary side */
+ iowrite16(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER,
+ ndev->self_mmio + ATOM_SPCICMD_OFFSET);
+
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1;
+
+ return 0;
+}
+
+static int atom_init_dev(struct intel_ntb_dev *ndev)
+{
+ u32 ppd;
+ int rc;
+
+ rc = pci_read_config_dword(ndev->ntb.pdev, ATOM_PPD_OFFSET, &ppd);
+ if (rc)
+ return -EIO;
+
+ ndev->ntb.topo = atom_ppd_topo(ndev, ppd);
+ if (ndev->ntb.topo == NTB_TOPO_NONE)
+ return -EINVAL;
+
+ rc = atom_init_ntb(ndev);
+ if (rc)
+ return rc;
+
+ rc = atom_init_isr(ndev);
+ if (rc)
+ return rc;
+
+ if (ndev->ntb.topo != NTB_TOPO_SEC) {
+ /* Initiate PCI-E link training */
+ rc = pci_write_config_dword(ndev->ntb.pdev, ATOM_PPD_OFFSET,
+ ppd | ATOM_PPD_INIT_LINK);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+static void atom_deinit_dev(struct intel_ntb_dev *ndev)
+{
+ atom_deinit_isr(ndev);
+}
+
+/* XEON */
+
+static u64 xeon_db_ioread(void __iomem *mmio)
+{
+ return (u64)ioread16(mmio);
+}
+
+static void xeon_db_iowrite(u64 bits, void __iomem *mmio)
+{
+ iowrite16((u16)bits, mmio);
+}
+
+static int xeon_poll_link(struct intel_ntb_dev *ndev)
+{
+ u16 reg_val;
+ int rc;
+
+ ndev->reg->db_iowrite(ndev->db_link_mask,
+ ndev->self_mmio +
+ ndev->self_reg->db_bell);
+
+ rc = pci_read_config_word(ndev->ntb.pdev,
+ XEON_LINK_STATUS_OFFSET, ®_val);
+ if (rc)
+ return 0;
+
+ if (reg_val == ndev->lnk_sta)
+ return 0;
+
+ ndev->lnk_sta = reg_val;
+
+ return 1;
+}
+
+static int xeon_link_is_up(struct intel_ntb_dev *ndev)
+{
+ if (ndev->ntb.topo == NTB_TOPO_SEC)
+ return 1;
+
+ return NTB_LNK_STA_ACTIVE(ndev->lnk_sta);
+}
+
+static inline enum ntb_topo xeon_ppd_topo(struct intel_ntb_dev *ndev, u8 ppd)
+{
+ switch (ppd & XEON_PPD_TOPO_MASK) {
+ case XEON_PPD_TOPO_B2B_USD:
+ return NTB_TOPO_B2B_USD;
+
+ case XEON_PPD_TOPO_B2B_DSD:
+ return NTB_TOPO_B2B_DSD;
+
+ case XEON_PPD_TOPO_PRI_USD:
+ case XEON_PPD_TOPO_PRI_DSD: /* accept bogus PRI_DSD */
+ return NTB_TOPO_PRI;
+
+ case XEON_PPD_TOPO_SEC_USD:
+ case XEON_PPD_TOPO_SEC_DSD: /* accept bogus SEC_DSD */
+ return NTB_TOPO_SEC;
+ }
+
+ return NTB_TOPO_NONE;
+}
+
+static inline int xeon_ppd_bar4_split(struct intel_ntb_dev *ndev, u8 ppd)
+{
+ if (ppd & XEON_PPD_SPLIT_BAR_MASK) {
+ dev_dbg(ndev_dev(ndev), "PPD %d split bar\n", ppd);
+ return 1;
+ }
+ return 0;
+}
+
+static int xeon_init_isr(struct intel_ntb_dev *ndev)
+{
+ return ndev_init_isr(ndev, XEON_DB_MSIX_VECTOR_COUNT,
+ XEON_DB_MSIX_VECTOR_COUNT,
+ XEON_DB_MSIX_VECTOR_SHIFT,
+ XEON_DB_TOTAL_SHIFT);
+}
+
+static void xeon_deinit_isr(struct intel_ntb_dev *ndev)
+{
+ ndev_deinit_isr(ndev);
+}
+
+static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
+ const struct intel_b2b_addr *addr,
+ const struct intel_b2b_addr *peer_addr)
+{
+ struct pci_dev *pdev;
+ void __iomem *mmio;
+ resource_size_t bar_size;
+ phys_addr_t bar_addr;
+ int b2b_bar;
+ u8 bar_sz;
+
+ pdev = ndev_pdev(ndev);
+ mmio = ndev->self_mmio;
+
+ if (ndev->b2b_idx >= ndev->mw_count) {
+ dev_dbg(ndev_dev(ndev), "not using b2b mw\n");
+ b2b_bar = 0;
+ ndev->b2b_off = 0;
+ } else {
+ b2b_bar = ndev_mw_to_bar(ndev, ndev->b2b_idx);
+ if (b2b_bar < 0)
+ return -EIO;
+
+ dev_dbg(ndev_dev(ndev), "using b2b mw bar %d\n", b2b_bar);
+
+ bar_size = pci_resource_len(ndev->ntb.pdev, b2b_bar);
+
+ dev_dbg(ndev_dev(ndev), "b2b bar size %#llx\n", bar_size);
+
+ if (b2b_mw_share && XEON_B2B_MIN_SIZE <= bar_size >> 1) {
+ dev_dbg(ndev_dev(ndev),
+ "b2b using first half of bar\n");
+ ndev->b2b_off = bar_size >> 1;
+ } else if (XEON_B2B_MIN_SIZE <= bar_size) {
+ dev_dbg(ndev_dev(ndev),
+ "b2b using whole bar\n");
+ ndev->b2b_off = 0;
+ --ndev->mw_count;
+ } else {
+ dev_dbg(ndev_dev(ndev),
+ "b2b bar size is too small\n");
+ return -EIO;
+ }
+ }
+
+ /* Reset the secondary bar sizes to match the primary bar sizes,
+ * except disable or halve the size of the b2b secondary bar.
+ *
+ * Note: code for each specific bar size register, because the register
+ * offsets are not in a consistent order (bar5sz comes after ppd, odd).
+ */
+ pci_read_config_byte(pdev, XEON_PBAR23SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "PBAR23SZ %#x\n", bar_sz);
+ if (b2b_bar == 2) {
+ if (ndev->b2b_off)
+ bar_sz -= 1;
+ else
+ bar_sz = 0;
+ }
+ pci_write_config_byte(pdev, XEON_SBAR23SZ_OFFSET, bar_sz);
+ pci_read_config_byte(pdev, XEON_SBAR23SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "SBAR23SZ %#x\n", bar_sz);
+
+ if (!ndev->bar4_split) {
+ pci_read_config_byte(pdev, XEON_PBAR45SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "PBAR45SZ %#x\n", bar_sz);
+ if (b2b_bar == 4) {
+ if (ndev->b2b_off)
+ bar_sz -= 1;
+ else
+ bar_sz = 0;
+ }
+ pci_write_config_byte(pdev, XEON_SBAR45SZ_OFFSET, bar_sz);
+ pci_read_config_byte(pdev, XEON_SBAR45SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "SBAR45SZ %#x\n", bar_sz);
+ } else {
+ pci_read_config_byte(pdev, XEON_PBAR4SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "PBAR4SZ %#x\n", bar_sz);
+ if (b2b_bar == 4) {
+ if (ndev->b2b_off)
+ bar_sz -= 1;
+ else
+ bar_sz = 0;
+ }
+ pci_write_config_byte(pdev, XEON_SBAR4SZ_OFFSET, bar_sz);
+ pci_read_config_byte(pdev, XEON_SBAR4SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "SBAR4SZ %#x\n", bar_sz);
+
+ pci_read_config_byte(pdev, XEON_PBAR5SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "PBAR5SZ %#x\n", bar_sz);
+ if (b2b_bar == 5) {
+ if (ndev->b2b_off)
+ bar_sz -= 1;
+ else
+ bar_sz = 0;
+ }
+ pci_write_config_byte(pdev, XEON_SBAR5SZ_OFFSET, bar_sz);
+ pci_read_config_byte(pdev, XEON_SBAR5SZ_OFFSET, &bar_sz);
+ dev_dbg(ndev_dev(ndev), "SBAR5SZ %#x\n", bar_sz);
+ }
+
+ /* SBAR01 hit by first part of the b2b bar */
+ if (b2b_bar == 0)
+ bar_addr = addr->bar0_addr;
+ else if (b2b_bar == 2)
+ bar_addr = addr->bar2_addr64;
+ else if (b2b_bar == 4 && !ndev->bar4_split)
+ bar_addr = addr->bar4_addr64;
+ else if (b2b_bar == 4)
+ bar_addr = addr->bar4_addr32;
+ else if (b2b_bar == 5)
+ bar_addr = addr->bar5_addr32;
+ else
+ return -EIO;
+
+ dev_dbg(ndev_dev(ndev), "SBAR01 %#018llx\n", bar_addr);
+ iowrite64(bar_addr, mmio + XEON_SBAR0BASE_OFFSET);
+
+ /* Other SBAR are normally hit by the PBAR xlat, except for b2b bar.
+ * The b2b bar is either disabled above, or configured half-size, and
+ * it starts at the PBAR xlat + offset.
+ */
+
+ bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
+ iowrite64(bar_addr, mmio + XEON_SBAR23BASE_OFFSET);
+ bar_addr = ioread64(mmio + XEON_SBAR23BASE_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR23 %#018llx\n", bar_addr);
+
+ if (!ndev->bar4_split) {
+ bar_addr = addr->bar4_addr64 +
+ (b2b_bar == 4 ? ndev->b2b_off : 0);
+ iowrite64(bar_addr, mmio + XEON_SBAR45BASE_OFFSET);
+ bar_addr = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR45 %#018llx\n", bar_addr);
+ } else {
+ bar_addr = addr->bar4_addr32 +
+ (b2b_bar == 4 ? ndev->b2b_off : 0);
+ iowrite32(bar_addr, mmio + XEON_SBAR4BASE_OFFSET);
+ bar_addr = ioread32(mmio + XEON_SBAR4BASE_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR4 %#010llx\n", bar_addr);
+
+ bar_addr = addr->bar5_addr32 +
+ (b2b_bar == 5 ? ndev->b2b_off : 0);
+ iowrite32(bar_addr, mmio + XEON_SBAR5BASE_OFFSET);
+ bar_addr = ioread32(mmio + XEON_SBAR5BASE_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR5 %#010llx\n", bar_addr);
+ }
+
+ /* setup incoming bar limits == base addrs (zero length windows) */
+
+ bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
+ iowrite64(bar_addr, mmio + XEON_SBAR23LMT_OFFSET);
+ bar_addr = ioread64(mmio + XEON_SBAR23LMT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR23LMT %#018llx\n", bar_addr);
+
+ if (!ndev->bar4_split) {
+ bar_addr = addr->bar4_addr64 +
+ (b2b_bar == 4 ? ndev->b2b_off : 0);
+ iowrite64(bar_addr, mmio + XEON_SBAR45LMT_OFFSET);
+ bar_addr = ioread64(mmio + XEON_SBAR45LMT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR45LMT %#018llx\n", bar_addr);
+ } else {
+ bar_addr = addr->bar4_addr32 +
+ (b2b_bar == 4 ? ndev->b2b_off : 0);
+ iowrite32(bar_addr, mmio + XEON_SBAR4LMT_OFFSET);
+ bar_addr = ioread32(mmio + XEON_SBAR4LMT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR4LMT %#010llx\n", bar_addr);
+
+ bar_addr = addr->bar5_addr32 +
+ (b2b_bar == 5 ? ndev->b2b_off : 0);
+ iowrite32(bar_addr, mmio + XEON_SBAR5LMT_OFFSET);
+ bar_addr = ioread32(mmio + XEON_SBAR5LMT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "SBAR5LMT %#05llx\n", bar_addr);
+ }
+
+ /* zero incoming translation addrs */
+ iowrite64(0, mmio + XEON_SBAR23XLAT_OFFSET);
+
+ if (!ndev->bar4_split) {
+ iowrite64(0, mmio + XEON_SBAR45XLAT_OFFSET);
+ } else {
+ iowrite32(0, mmio + XEON_SBAR4XLAT_OFFSET);
+ iowrite32(0, mmio + XEON_SBAR5XLAT_OFFSET);
+ }
+
+ /* zero outgoing translation limits (whole bar size windows) */
+ iowrite64(0, mmio + XEON_PBAR23LMT_OFFSET);
+ if (!ndev->bar4_split) {
+ iowrite64(0, mmio + XEON_PBAR45LMT_OFFSET);
+ } else {
+ iowrite32(0, mmio + XEON_PBAR4LMT_OFFSET);
+ iowrite32(0, mmio + XEON_PBAR5LMT_OFFSET);
+ }
+
+ /* set outgoing translation offsets */
+ bar_addr = peer_addr->bar2_addr64;
+ iowrite64(bar_addr, mmio + XEON_PBAR23XLAT_OFFSET);
+ bar_addr = ioread64(mmio + XEON_PBAR23XLAT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "PBAR23XLAT %#018llx\n", bar_addr);
+
+ if (!ndev->bar4_split) {
+ bar_addr = peer_addr->bar4_addr64;
+ iowrite64(bar_addr, mmio + XEON_PBAR45XLAT_OFFSET);
+ bar_addr = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "PBAR45XLAT %#018llx\n", bar_addr);
+ } else {
+ bar_addr = peer_addr->bar4_addr32;
+ iowrite32(bar_addr, mmio + XEON_PBAR4XLAT_OFFSET);
+ bar_addr = ioread32(mmio + XEON_PBAR4XLAT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "PBAR4XLAT %#010llx\n", bar_addr);
+
+ bar_addr = peer_addr->bar5_addr32;
+ iowrite32(bar_addr, mmio + XEON_PBAR5XLAT_OFFSET);
+ bar_addr = ioread32(mmio + XEON_PBAR5XLAT_OFFSET);
+ dev_dbg(ndev_dev(ndev), "PBAR5XLAT %#010llx\n", bar_addr);
+ }
+
+ /* set the translation offset for b2b registers */
+ if (b2b_bar == 0)
+ bar_addr = peer_addr->bar0_addr;
+ else if (b2b_bar == 2)
+ bar_addr = peer_addr->bar2_addr64;
+ else if (b2b_bar == 4 && !ndev->bar4_split)
+ bar_addr = peer_addr->bar4_addr64;
+ else if (b2b_bar == 4)
+ bar_addr = peer_addr->bar4_addr32;
+ else if (b2b_bar == 5)
+ bar_addr = peer_addr->bar5_addr32;
+ else
+ return -EIO;
+
+ /* B2B_XLAT_OFFSET is 64bit, but can only take 32bit writes */
+ dev_dbg(ndev_dev(ndev), "B2BXLAT %#018llx\n", bar_addr);
+ iowrite32(bar_addr, mmio + XEON_B2B_XLAT_OFFSETL);
+ iowrite32(bar_addr >> 32, mmio + XEON_B2B_XLAT_OFFSETU);
+
+ if (b2b_bar) {
+ /* map peer ntb mmio config space registers */
+ ndev->peer_mmio = pci_iomap(pdev, b2b_bar,
+ XEON_B2B_MIN_SIZE);
+ if (!ndev->peer_mmio)
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int xeon_init_ntb(struct intel_ntb_dev *ndev)
+{
+ int rc;
+ u32 ntb_ctl;
+
+ if (ndev->bar4_split)
+ ndev->mw_count = HSX_SPLIT_BAR_MW_COUNT;
+ else
+ ndev->mw_count = XEON_MW_COUNT;
+
+ ndev->spad_count = XEON_SPAD_COUNT;
+ ndev->db_count = XEON_DB_COUNT;
+ ndev->db_link_mask = XEON_DB_LINK_BIT;
+
+ switch (ndev->ntb.topo) {
+ case NTB_TOPO_PRI:
+ if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
+ dev_err(ndev_dev(ndev), "NTB Primary config disabled\n");
+ return -EINVAL;
+ }
+
+ /* enable link to allow secondary side device to appear */
+ ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
+ ntb_ctl &= ~NTB_CTL_DISABLE;
+ iowrite32(ntb_ctl, ndev->self_mmio + ndev->reg->ntb_ctl);
+
+ /* use half the spads for the peer */
+ ndev->spad_count >>= 1;
+ ndev->self_reg = &xeon_pri_reg;
+ ndev->peer_reg = &xeon_sec_reg;
+ ndev->xlat_reg = &xeon_sec_xlat;
+ break;
+
+ case NTB_TOPO_SEC:
+ if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
+ dev_err(ndev_dev(ndev), "NTB Secondary config disabled\n");
+ return -EINVAL;
+ }
+ /* use half the spads for the peer */
+ ndev->spad_count >>= 1;
+ ndev->self_reg = &xeon_sec_reg;
+ ndev->peer_reg = &xeon_pri_reg;
+ ndev->xlat_reg = &xeon_pri_xlat;
+ break;
+
+ case NTB_TOPO_B2B_USD:
+ case NTB_TOPO_B2B_DSD:
+ ndev->self_reg = &xeon_pri_reg;
+ ndev->peer_reg = &xeon_b2b_reg;
+ ndev->xlat_reg = &xeon_sec_xlat;
+
+ if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
+ ndev->peer_reg = &xeon_pri_reg;
+
+ if (b2b_mw_idx < 0)
+ ndev->b2b_idx = b2b_mw_idx + ndev->mw_count;
+ else
+ ndev->b2b_idx = b2b_mw_idx;
+
+ dev_dbg(ndev_dev(ndev),
+ "setting up b2b mw idx %d means %d\n",
+ b2b_mw_idx, ndev->b2b_idx);
+
+ } else if (ndev->hwerr_flags & NTB_HWERR_B2BDOORBELL_BIT14) {
+ dev_warn(ndev_dev(ndev), "Reduce doorbell count by 1\n");
+ ndev->db_count -= 1;
+ }
+
+ if (ndev->ntb.topo == NTB_TOPO_B2B_USD) {
+ rc = xeon_setup_b2b_mw(ndev,
+ &xeon_b2b_dsd_addr,
+ &xeon_b2b_usd_addr);
+ } else {
+ rc = xeon_setup_b2b_mw(ndev,
+ &xeon_b2b_usd_addr,
+ &xeon_b2b_dsd_addr);
+ }
+ if (rc)
+ return rc;
+
+ /* Enable Bus Master and Memory Space on the secondary side */
+ iowrite16(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER,
+ ndev->self_mmio + XEON_SPCICMD_OFFSET);
+
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1;
+
+ ndev->reg->db_iowrite(ndev->db_valid_mask,
+ ndev->self_mmio +
+ ndev->self_reg->db_mask);
+
+ return 0;
+}
+
+static int xeon_init_dev(struct intel_ntb_dev *ndev)
+{
+ struct pci_dev *pdev;
+ u8 ppd;
+ int rc, mem;
+
+ pdev = ndev_pdev(ndev);
+
+ switch (pdev->device) {
+ /* There is a Xeon hardware errata related to writes to SDOORBELL or
+ * B2BDOORBELL in conjunction with inbound access to NTB MMIO Space,
+ * which may hang the system. To workaround this use the second memory
+ * window to access the interrupt and scratch pad registers on the
+ * remote system.
+ */
+ case PCI_DEVICE_ID_INTEL_NTB_SS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
+ ndev->hwerr_flags |= NTB_HWERR_SDOORBELL_LOCKUP;
+ break;
+ }
+
+ switch (pdev->device) {
+ /* There is a hardware errata related to accessing any register in
+ * SB01BASE in the presence of bidirectional traffic crossing the NTB.
+ */
+ case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
+ ndev->hwerr_flags |= NTB_HWERR_SB01BASE_LOCKUP;
+ break;
+ }
+
+ switch (pdev->device) {
+ /* HW Errata on bit 14 of b2bdoorbell register. Writes will not be
+ * mirrored to the remote system. Shrink the number of bits by one,
+ * since bit 14 is the last bit.
+ */
+ case PCI_DEVICE_ID_INTEL_NTB_SS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
+ case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
+ case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
+ ndev->hwerr_flags |= NTB_HWERR_B2BDOORBELL_BIT14;
+ break;
+ }
+
+ ndev->reg = &xeon_reg;
+
+ rc = pci_read_config_byte(pdev, XEON_PPD_OFFSET, &ppd);
+ if (rc)
+ return -EIO;
+
+ ndev->ntb.topo = xeon_ppd_topo(ndev, ppd);
+ dev_dbg(ndev_dev(ndev), "ppd %#x topo %s\n", ppd,
+ ntb_topo_string(ndev->ntb.topo));
+ if (ndev->ntb.topo == NTB_TOPO_NONE)
+ return -EINVAL;
+
+ if (ndev->ntb.topo != NTB_TOPO_SEC) {
+ ndev->bar4_split = xeon_ppd_bar4_split(ndev, ppd);
+ dev_dbg(ndev_dev(ndev), "ppd %#x bar4_split %d\n",
+ ppd, ndev->bar4_split);
+ } else {
+ /* This is a way for transparent BAR to figure out if we are
+ * doing split BAR or not. There is no way for the hw on the
+ * transparent side to know and set the PPD.
+ */
+ mem = pci_select_bars(pdev, IORESOURCE_MEM);
+ ndev->bar4_split = hweight32(mem) ==
+ HSX_SPLIT_BAR_MW_COUNT + 1;
+ dev_dbg(ndev_dev(ndev), "mem %#x bar4_split %d\n",
+ mem, ndev->bar4_split);
+ }
+
+ rc = xeon_init_ntb(ndev);
+ if (rc)
+ return rc;
+
+ return xeon_init_isr(ndev);
+}
+
+static void xeon_deinit_dev(struct intel_ntb_dev *ndev)
+{
+ xeon_deinit_isr(ndev);
+}
+
+static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
+{
+ int rc;
+
+ pci_set_drvdata(pdev, ndev);
+
+ rc = pci_enable_device(pdev);
+ if (rc)
+ goto err_pci_enable;
+
+ rc = pci_request_regions(pdev, NTB_NAME);
+ if (rc)
+ goto err_pci_regions;
+
+ pci_set_master(pdev);
+
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (rc) {
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc)
+ goto err_dma_mask;
+ dev_warn(ndev_dev(ndev), "Cannot DMA highmem\n");
+ }
+
+ rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (rc) {
+ rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (rc)
+ goto err_dma_mask;
+ dev_warn(ndev_dev(ndev), "Cannot DMA consistent highmem\n");
+ }
+
+ ndev->self_mmio = pci_iomap(pdev, 0, 0);
+ if (!ndev->self_mmio) {
+ rc = -EIO;
+ goto err_mmio;
+ }
+ ndev->peer_mmio = ndev->self_mmio;
+
+ return 0;
+
+err_mmio:
+err_dma_mask:
+ pci_clear_master(pdev);
+ pci_release_regions(pdev);
+err_pci_regions:
+ pci_disable_device(pdev);
+err_pci_enable:
+ pci_set_drvdata(pdev, NULL);
+ return rc;
+}
+
+static void intel_ntb_deinit_pci(struct intel_ntb_dev *ndev)
+{
+ struct pci_dev *pdev = ndev_pdev(ndev);
+
+ if (ndev->peer_mmio && ndev->peer_mmio != ndev->self_mmio)
+ pci_iounmap(pdev, ndev->peer_mmio);
+ pci_iounmap(pdev, ndev->self_mmio);
+
+ pci_clear_master(pdev);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+}
+
+static inline void ndev_init_struct(struct intel_ntb_dev *ndev,
+ struct pci_dev *pdev)
+{
+ ndev->ntb.pdev = pdev;
+ ndev->ntb.topo = NTB_TOPO_NONE;
+ ndev->ntb.ops = &intel_ntb_ops;
+
+ ndev->b2b_off = 0;
+ ndev->b2b_idx = INT_MAX;
+
+ ndev->bar4_split = 0;
+
+ ndev->mw_count = 0;
+ ndev->spad_count = 0;
+ ndev->db_count = 0;
+ ndev->db_vec_count = 0;
+ ndev->db_vec_shift = 0;
+
+ ndev->ntb_ctl = 0;
+ ndev->lnk_sta = 0;
+
+ ndev->db_valid_mask = 0;
+ ndev->db_link_mask = 0;
+ ndev->db_mask = 0;
+
+ spin_lock_init(&ndev->db_mask_lock);
+}
+
+static int intel_ntb_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ struct intel_ntb_dev *ndev;
+ int rc, node;
+
+ node = dev_to_node(&pdev->dev);
+
+ if (pdev_is_atom(pdev)) {
+ ndev = kzalloc_node(sizeof(*ndev), GFP_KERNEL, node);
+ if (!ndev) {
+ rc = -ENOMEM;
+ goto err_ndev;
+ }
+
+ ndev_init_struct(ndev, pdev);
+
+ rc = intel_ntb_init_pci(ndev, pdev);
+ if (rc)
+ goto err_init_pci;
+
+ rc = atom_init_dev(ndev);
+ if (rc)
+ goto err_init_dev;
+
+ } else if (pdev_is_xeon(pdev)) {
+ ndev = kzalloc_node(sizeof(*ndev), GFP_KERNEL, node);
+ if (!ndev) {
+ rc = -ENOMEM;
+ goto err_ndev;
+ }
+
+ ndev_init_struct(ndev, pdev);
+
+ rc = intel_ntb_init_pci(ndev, pdev);
+ if (rc)
+ goto err_init_pci;
+
+ rc = xeon_init_dev(ndev);
+ if (rc)
+ goto err_init_dev;
+
+ } else {
+ rc = -EINVAL;
+ goto err_ndev;
+ }
+
+ ndev_reset_unsafe_flags(ndev);
+
+ ndev->reg->poll_link(ndev);
+
+ ndev_init_debugfs(ndev);
+
+ rc = ntb_register_device(&ndev->ntb);
+ if (rc)
+ goto err_register;
+
+ dev_info(&pdev->dev, "NTB device registered.\n");
+
+ return 0;
+
+err_register:
+ ndev_deinit_debugfs(ndev);
+ if (pdev_is_atom(pdev))
+ atom_deinit_dev(ndev);
+ else if (pdev_is_xeon(pdev))
+ xeon_deinit_dev(ndev);
+err_init_dev:
+ intel_ntb_deinit_pci(ndev);
+err_init_pci:
+ kfree(ndev);
+err_ndev:
+ return rc;
+}
+
+static void intel_ntb_pci_remove(struct pci_dev *pdev)
+{
+ struct intel_ntb_dev *ndev = pci_get_drvdata(pdev);
+
+ ntb_unregister_device(&ndev->ntb);
+ ndev_deinit_debugfs(ndev);
+ if (pdev_is_atom(pdev))
+ atom_deinit_dev(ndev);
+ else if (pdev_is_xeon(pdev))
+ xeon_deinit_dev(ndev);
+ intel_ntb_deinit_pci(ndev);
+ kfree(ndev);
+}
+
+static const struct intel_ntb_reg atom_reg = {
+ .poll_link = atom_poll_link,
+ .link_is_up = atom_link_is_up,
+ .db_ioread = atom_db_ioread,
+ .db_iowrite = atom_db_iowrite,
+ .db_size = sizeof(u64),
+ .ntb_ctl = ATOM_NTBCNTL_OFFSET,
+ .mw_bar = {2, 4},
+};
+
+static const struct intel_ntb_alt_reg atom_pri_reg = {
+ .db_bell = ATOM_PDOORBELL_OFFSET,
+ .db_mask = ATOM_PDBMSK_OFFSET,
+ .spad = ATOM_SPAD_OFFSET,
+};
+
+static const struct intel_ntb_alt_reg atom_b2b_reg = {
+ .db_bell = ATOM_B2B_DOORBELL_OFFSET,
+ .spad = ATOM_B2B_SPAD_OFFSET,
+};
+
+static const struct intel_ntb_xlat_reg atom_sec_xlat = {
+ /* FIXME : .bar0_base = ATOM_SBAR0BASE_OFFSET, */
+ /* FIXME : .bar2_limit = ATOM_SBAR2LMT_OFFSET, */
+ .bar2_xlat = ATOM_SBAR2XLAT_OFFSET,
+};
+
+static const struct intel_ntb_reg xeon_reg = {
+ .poll_link = xeon_poll_link,
+ .link_is_up = xeon_link_is_up,
+ .db_ioread = xeon_db_ioread,
+ .db_iowrite = xeon_db_iowrite,
+ .db_size = sizeof(u32),
+ .ntb_ctl = XEON_NTBCNTL_OFFSET,
+ .mw_bar = {2, 4, 5},
+};
+
+static const struct intel_ntb_alt_reg xeon_pri_reg = {
+ .db_bell = XEON_PDOORBELL_OFFSET,
+ .db_mask = XEON_PDBMSK_OFFSET,
+ .spad = XEON_SPAD_OFFSET,
+};
+
+static const struct intel_ntb_alt_reg xeon_sec_reg = {
+ .db_bell = XEON_SDOORBELL_OFFSET,
+ .db_mask = XEON_SDBMSK_OFFSET,
+ /* second half of the scratchpads */
+ .spad = XEON_SPAD_OFFSET + (XEON_SPAD_COUNT << 1),
+};
+
+static const struct intel_ntb_alt_reg xeon_b2b_reg = {
+ .db_bell = XEON_B2B_DOORBELL_OFFSET,
+ .spad = XEON_B2B_SPAD_OFFSET,
+};
+
+static const struct intel_ntb_xlat_reg xeon_pri_xlat = {
+ /* Note: no primary .bar0_base visible to the secondary side.
+ *
+ * The secondary side cannot get the base address stored in primary
+ * bars. The base address is necessary to set the limit register to
+ * any value other than zero, or unlimited.
+ *
+ * WITHOUT THE BASE ADDRESS, THE SECONDARY SIDE CANNOT DISABLE the
+ * window by setting the limit equal to base, nor can it limit the size
+ * of the memory window by setting the limit to base + size.
+ */
+ .bar2_limit = XEON_PBAR23LMT_OFFSET,
+ .bar2_xlat = XEON_PBAR23XLAT_OFFSET,
+};
+
+static const struct intel_ntb_xlat_reg xeon_sec_xlat = {
+ .bar0_base = XEON_SBAR0BASE_OFFSET,
+ .bar2_limit = XEON_SBAR23LMT_OFFSET,
+ .bar2_xlat = XEON_SBAR23XLAT_OFFSET,
+};
+
+static struct intel_b2b_addr xeon_b2b_usd_addr = {
+ .bar2_addr64 = XEON_B2B_BAR2_USD_ADDR64,
+ .bar4_addr64 = XEON_B2B_BAR4_USD_ADDR64,
+ .bar4_addr32 = XEON_B2B_BAR4_USD_ADDR32,
+ .bar5_addr32 = XEON_B2B_BAR5_USD_ADDR32,
+};
+
+static struct intel_b2b_addr xeon_b2b_dsd_addr = {
+ .bar2_addr64 = XEON_B2B_BAR2_DSD_ADDR64,
+ .bar4_addr64 = XEON_B2B_BAR4_DSD_ADDR64,
+ .bar4_addr32 = XEON_B2B_BAR4_DSD_ADDR32,
+ .bar5_addr32 = XEON_B2B_BAR5_DSD_ADDR32,
+};
+
+/* operations for primary side of local ntb */
+static const struct ntb_dev_ops intel_ntb_ops = {
+ .mw_count = intel_ntb_mw_count,
+ .mw_get_range = intel_ntb_mw_get_range,
+ .mw_set_trans = intel_ntb_mw_set_trans,
+ .link_is_up = intel_ntb_link_is_up,
+ .link_enable = intel_ntb_link_enable,
+ .link_disable = intel_ntb_link_disable,
+ .db_is_unsafe = intel_ntb_db_is_unsafe,
+ .db_valid_mask = intel_ntb_db_valid_mask,
+ .db_vector_count = intel_ntb_db_vector_count,
+ .db_vector_mask = intel_ntb_db_vector_mask,
+ .db_read = intel_ntb_db_read,
+ .db_clear = intel_ntb_db_clear,
+ .db_set_mask = intel_ntb_db_set_mask,
+ .db_clear_mask = intel_ntb_db_clear_mask,
+ .peer_db_addr = intel_ntb_peer_db_addr,
+ .peer_db_set = intel_ntb_peer_db_set,
+ .spad_is_unsafe = intel_ntb_spad_is_unsafe,
+ .spad_count = intel_ntb_spad_count,
+ .spad_read = intel_ntb_spad_read,
+ .spad_write = intel_ntb_spad_write,
+ .peer_spad_addr = intel_ntb_peer_spad_addr,
+ .peer_spad_read = intel_ntb_peer_spad_read,
+ .peer_spad_write = intel_ntb_peer_spad_write,
+};
+
+static const struct file_operations intel_ntb_debugfs_info = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = ndev_debugfs_read,
+};
+
+static const struct pci_device_id intel_ntb_pci_tbl[] = {
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_BWD)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_JSF)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_SNB)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_IVT)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_HSX)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_JSF)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_SNB)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_IVT)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_HSX)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_JSF)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_SNB)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_IVT)},
+ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_HSX)},
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, intel_ntb_pci_tbl);
+
+static struct pci_driver intel_ntb_pci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = intel_ntb_pci_tbl,
+ .probe = intel_ntb_pci_probe,
+ .remove = intel_ntb_pci_remove,
+};
+
+static int __init intel_ntb_pci_driver_init(void)
+{
+ pr_info("%s %s\n", NTB_DESC, NTB_VER);
+
+ if (debugfs_initialized())
+ debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+ return pci_register_driver(&intel_ntb_pci_driver);
+}
+module_init(intel_ntb_pci_driver_init);
+
+static void __exit intel_ntb_pci_driver_exit(void)
+{
+ pci_unregister_driver(&intel_ntb_pci_driver);
+
+ debugfs_remove_recursive(debugfs_dir);
+}
+module_exit(intel_ntb_pci_driver_exit);
+
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.h b/drivers/ntb/hw/intel/ntb_hw_intel.h
new file mode 100644
index 0000000..7ddaf38
--- /dev/null
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.h
@@ -0,0 +1,342 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Intel PCIe NTB Linux driver
+ *
+ * Contact Information:
+ * Jon Mason <jon.mason@intel.com>
+ */
+
+#ifndef NTB_HW_INTEL_H
+#define NTB_HW_INTEL_H
+
+#include <linux/ntb.h>
+#include <linux/pci.h>
+
+#define PCI_DEVICE_ID_INTEL_NTB_B2B_JSF 0x3725
+#define PCI_DEVICE_ID_INTEL_NTB_PS_JSF 0x3726
+#define PCI_DEVICE_ID_INTEL_NTB_SS_JSF 0x3727
+#define PCI_DEVICE_ID_INTEL_NTB_B2B_SNB 0x3C0D
+#define PCI_DEVICE_ID_INTEL_NTB_PS_SNB 0x3C0E
+#define PCI_DEVICE_ID_INTEL_NTB_SS_SNB 0x3C0F
+#define PCI_DEVICE_ID_INTEL_NTB_B2B_IVT 0x0E0D
+#define PCI_DEVICE_ID_INTEL_NTB_PS_IVT 0x0E0E
+#define PCI_DEVICE_ID_INTEL_NTB_SS_IVT 0x0E0F
+#define PCI_DEVICE_ID_INTEL_NTB_B2B_HSX 0x2F0D
+#define PCI_DEVICE_ID_INTEL_NTB_PS_HSX 0x2F0E
+#define PCI_DEVICE_ID_INTEL_NTB_SS_HSX 0x2F0F
+#define PCI_DEVICE_ID_INTEL_NTB_B2B_BWD 0x0C4E
+
+/* Intel Xeon hardware */
+
+#define XEON_PBAR23LMT_OFFSET 0x0000
+#define XEON_PBAR45LMT_OFFSET 0x0008
+#define XEON_PBAR4LMT_OFFSET 0x0008
+#define XEON_PBAR5LMT_OFFSET 0x000c
+#define XEON_PBAR23XLAT_OFFSET 0x0010
+#define XEON_PBAR45XLAT_OFFSET 0x0018
+#define XEON_PBAR4XLAT_OFFSET 0x0018
+#define XEON_PBAR5XLAT_OFFSET 0x001c
+#define XEON_SBAR23LMT_OFFSET 0x0020
+#define XEON_SBAR45LMT_OFFSET 0x0028
+#define XEON_SBAR4LMT_OFFSET 0x0028
+#define XEON_SBAR5LMT_OFFSET 0x002c
+#define XEON_SBAR23XLAT_OFFSET 0x0030
+#define XEON_SBAR45XLAT_OFFSET 0x0038
+#define XEON_SBAR4XLAT_OFFSET 0x0038
+#define XEON_SBAR5XLAT_OFFSET 0x003c
+#define XEON_SBAR0BASE_OFFSET 0x0040
+#define XEON_SBAR23BASE_OFFSET 0x0048
+#define XEON_SBAR45BASE_OFFSET 0x0050
+#define XEON_SBAR4BASE_OFFSET 0x0050
+#define XEON_SBAR5BASE_OFFSET 0x0054
+#define XEON_SBDF_OFFSET 0x005c
+#define XEON_NTBCNTL_OFFSET 0x0058
+#define XEON_PDOORBELL_OFFSET 0x0060
+#define XEON_PDBMSK_OFFSET 0x0062
+#define XEON_SDOORBELL_OFFSET 0x0064
+#define XEON_SDBMSK_OFFSET 0x0066
+#define XEON_USMEMMISS_OFFSET 0x0070
+#define XEON_SPAD_OFFSET 0x0080
+#define XEON_PBAR23SZ_OFFSET 0x00d0
+#define XEON_PBAR45SZ_OFFSET 0x00d1
+#define XEON_PBAR4SZ_OFFSET 0x00d1
+#define XEON_SBAR23SZ_OFFSET 0x00d2
+#define XEON_SBAR45SZ_OFFSET 0x00d3
+#define XEON_SBAR4SZ_OFFSET 0x00d3
+#define XEON_PPD_OFFSET 0x00d4
+#define XEON_PBAR5SZ_OFFSET 0x00d5
+#define XEON_SBAR5SZ_OFFSET 0x00d6
+#define XEON_WCCNTRL_OFFSET 0x00e0
+#define XEON_UNCERRSTS_OFFSET 0x014c
+#define XEON_CORERRSTS_OFFSET 0x0158
+#define XEON_LINK_STATUS_OFFSET 0x01a2
+#define XEON_SPCICMD_OFFSET 0x0504
+#define XEON_DEVCTRL_OFFSET 0x0598
+#define XEON_DEVSTS_OFFSET 0x059a
+#define XEON_SLINK_STATUS_OFFSET 0x05a2
+#define XEON_B2B_SPAD_OFFSET 0x0100
+#define XEON_B2B_DOORBELL_OFFSET 0x0140
+#define XEON_B2B_XLAT_OFFSETL 0x0144
+#define XEON_B2B_XLAT_OFFSETU 0x0148
+#define XEON_PPD_CONN_MASK 0x03
+#define XEON_PPD_CONN_TRANSPARENT 0x00
+#define XEON_PPD_CONN_B2B 0x01
+#define XEON_PPD_CONN_RP 0x02
+#define XEON_PPD_DEV_MASK 0x10
+#define XEON_PPD_DEV_USD 0x00
+#define XEON_PPD_DEV_DSD 0x10
+#define XEON_PPD_SPLIT_BAR_MASK 0x40
+
+#define XEON_PPD_TOPO_MASK (XEON_PPD_CONN_MASK | XEON_PPD_DEV_MASK)
+#define XEON_PPD_TOPO_PRI_USD (XEON_PPD_CONN_RP | XEON_PPD_DEV_USD)
+#define XEON_PPD_TOPO_PRI_DSD (XEON_PPD_CONN_RP | XEON_PPD_DEV_DSD)
+#define XEON_PPD_TOPO_SEC_USD (XEON_PPD_CONN_TRANSPARENT | XEON_PPD_DEV_USD)
+#define XEON_PPD_TOPO_SEC_DSD (XEON_PPD_CONN_TRANSPARENT | XEON_PPD_DEV_DSD)
+#define XEON_PPD_TOPO_B2B_USD (XEON_PPD_CONN_B2B | XEON_PPD_DEV_USD)
+#define XEON_PPD_TOPO_B2B_DSD (XEON_PPD_CONN_B2B | XEON_PPD_DEV_DSD)
+
+#define XEON_MW_COUNT 2
+#define HSX_SPLIT_BAR_MW_COUNT 3
+#define XEON_DB_COUNT 15
+#define XEON_DB_LINK 15
+#define XEON_DB_LINK_BIT BIT_ULL(XEON_DB_LINK)
+#define XEON_DB_MSIX_VECTOR_COUNT 4
+#define XEON_DB_MSIX_VECTOR_SHIFT 5
+#define XEON_DB_TOTAL_SHIFT 16
+#define XEON_SPAD_COUNT 16
+
+/* Intel Atom hardware */
+
+#define ATOM_SBAR2XLAT_OFFSET 0x0008
+#define ATOM_PDOORBELL_OFFSET 0x0020
+#define ATOM_PDBMSK_OFFSET 0x0028
+#define ATOM_NTBCNTL_OFFSET 0x0060
+#define ATOM_SPAD_OFFSET 0x0080
+#define ATOM_PPD_OFFSET 0x00d4
+#define ATOM_PBAR2XLAT_OFFSET 0x8008
+#define ATOM_B2B_DOORBELL_OFFSET 0x8020
+#define ATOM_B2B_SPAD_OFFSET 0x8080
+#define ATOM_SPCICMD_OFFSET 0xb004
+#define ATOM_LINK_STATUS_OFFSET 0xb052
+#define ATOM_ERRCORSTS_OFFSET 0xb110
+#define ATOM_IP_BASE 0xc000
+#define ATOM_DESKEWSTS_OFFSET (ATOM_IP_BASE + 0x3024)
+#define ATOM_LTSSMERRSTS0_OFFSET (ATOM_IP_BASE + 0x3180)
+#define ATOM_LTSSMSTATEJMP_OFFSET (ATOM_IP_BASE + 0x3040)
+#define ATOM_IBSTERRRCRVSTS0_OFFSET (ATOM_IP_BASE + 0x3324)
+#define ATOM_MODPHY_PCSREG4 0x1c004
+#define ATOM_MODPHY_PCSREG6 0x1c006
+
+#define ATOM_PPD_INIT_LINK 0x0008
+#define ATOM_PPD_CONN_MASK 0x0300
+#define ATOM_PPD_CONN_TRANSPARENT 0x0000
+#define ATOM_PPD_CONN_B2B 0x0100
+#define ATOM_PPD_CONN_RP 0x0200
+#define ATOM_PPD_DEV_MASK 0x1000
+#define ATOM_PPD_DEV_USD 0x0000
+#define ATOM_PPD_DEV_DSD 0x1000
+#define ATOM_PPD_TOPO_MASK (ATOM_PPD_CONN_MASK | ATOM_PPD_DEV_MASK)
+#define ATOM_PPD_TOPO_PRI_USD (ATOM_PPD_CONN_TRANSPARENT | ATOM_PPD_DEV_USD)
+#define ATOM_PPD_TOPO_PRI_DSD (ATOM_PPD_CONN_TRANSPARENT | ATOM_PPD_DEV_DSD)
+#define ATOM_PPD_TOPO_SEC_USD (ATOM_PPD_CONN_RP | ATOM_PPD_DEV_USD)
+#define ATOM_PPD_TOPO_SEC_DSD (ATOM_PPD_CONN_RP | ATOM_PPD_DEV_DSD)
+#define ATOM_PPD_TOPO_B2B_USD (ATOM_PPD_CONN_B2B | ATOM_PPD_DEV_USD)
+#define ATOM_PPD_TOPO_B2B_DSD (ATOM_PPD_CONN_B2B | ATOM_PPD_DEV_DSD)
+
+#define ATOM_MW_COUNT 2
+#define ATOM_DB_COUNT 34
+#define ATOM_DB_VALID_MASK (BIT_ULL(ATOM_DB_COUNT) - 1)
+#define ATOM_DB_MSIX_VECTOR_COUNT 34
+#define ATOM_DB_MSIX_VECTOR_SHIFT 1
+#define ATOM_DB_TOTAL_SHIFT 34
+#define ATOM_SPAD_COUNT 16
+
+#define ATOM_NTB_CTL_DOWN_BIT BIT(16)
+#define ATOM_NTB_CTL_ACTIVE(x) !(x & ATOM_NTB_CTL_DOWN_BIT)
+
+#define ATOM_DESKEWSTS_DBERR BIT(15)
+#define ATOM_LTSSMERRSTS0_UNEXPECTEDEI BIT(20)
+#define ATOM_LTSSMSTATEJMP_FORCEDETECT BIT(2)
+#define ATOM_IBIST_ERR_OFLOW 0x7FFF7FFF
+
+#define ATOM_LINK_HB_TIMEOUT msecs_to_jiffies(1000)
+#define ATOM_LINK_RECOVERY_TIME msecs_to_jiffies(500)
+
+/* Ntb control and link status */
+
+#define NTB_CTL_CFG_LOCK BIT(0)
+#define NTB_CTL_DISABLE BIT(1)
+#define NTB_CTL_S2P_BAR2_SNOOP BIT(2)
+#define NTB_CTL_P2S_BAR2_SNOOP BIT(4)
+#define NTB_CTL_S2P_BAR4_SNOOP BIT(6)
+#define NTB_CTL_P2S_BAR4_SNOOP BIT(8)
+#define NTB_CTL_S2P_BAR5_SNOOP BIT(12)
+#define NTB_CTL_P2S_BAR5_SNOOP BIT(14)
+
+#define NTB_LNK_STA_ACTIVE_BIT 0x2000
+#define NTB_LNK_STA_SPEED_MASK 0x000f
+#define NTB_LNK_STA_WIDTH_MASK 0x03f0
+#define NTB_LNK_STA_ACTIVE(x) (!!((x) & NTB_LNK_STA_ACTIVE_BIT))
+#define NTB_LNK_STA_SPEED(x) ((x) & NTB_LNK_STA_SPEED_MASK)
+#define NTB_LNK_STA_WIDTH(x) (((x) & NTB_LNK_STA_WIDTH_MASK) >> 4)
+
+/* Use the following addresses for translation between b2b ntb devices in case
+ * the hardware default values are not reliable. */
+#define XEON_B2B_BAR0_USD_ADDR 0x1000000000000000ull
+#define XEON_B2B_BAR2_USD_ADDR64 0x2000000000000000ull
+#define XEON_B2B_BAR4_USD_ADDR64 0x4000000000000000ull
+#define XEON_B2B_BAR4_USD_ADDR32 0x20000000u
+#define XEON_B2B_BAR5_USD_ADDR32 0x40000000u
+#define XEON_B2B_BAR0_DSD_ADDR 0x9000000000000000ull
+#define XEON_B2B_BAR2_DSD_ADDR64 0xa000000000000000ull
+#define XEON_B2B_BAR4_DSD_ADDR64 0xc000000000000000ull
+#define XEON_B2B_BAR4_DSD_ADDR32 0xa0000000u
+#define XEON_B2B_BAR5_DSD_ADDR32 0xc0000000u
+
+/* The peer ntb secondary config space is 32KB fixed size */
+#define XEON_B2B_MIN_SIZE 0x8000
+
+/* flags to indicate hardware errata */
+#define NTB_HWERR_SDOORBELL_LOCKUP BIT_ULL(0)
+#define NTB_HWERR_SB01BASE_LOCKUP BIT_ULL(1)
+#define NTB_HWERR_B2BDOORBELL_BIT14 BIT_ULL(2)
+
+/* flags to indicate unsafe api */
+#define NTB_UNSAFE_DB BIT_ULL(0)
+#define NTB_UNSAFE_SPAD BIT_ULL(1)
+
+struct intel_ntb_dev;
+
+struct intel_ntb_reg {
+ int (*poll_link)(struct intel_ntb_dev *ndev);
+ int (*link_is_up)(struct intel_ntb_dev *ndev);
+ u64 (*db_ioread)(void __iomem *mmio);
+ void (*db_iowrite)(u64 db_bits, void __iomem *mmio);
+ unsigned long ntb_ctl;
+ resource_size_t db_size;
+ int mw_bar[];
+};
+
+struct intel_ntb_alt_reg {
+ unsigned long db_bell;
+ unsigned long db_mask;
+ unsigned long spad;
+};
+
+struct intel_ntb_xlat_reg {
+ unsigned long bar0_base;
+ unsigned long bar2_xlat;
+ unsigned long bar2_limit;
+};
+
+struct intel_b2b_addr {
+ phys_addr_t bar0_addr;
+ phys_addr_t bar2_addr64;
+ phys_addr_t bar4_addr64;
+ phys_addr_t bar4_addr32;
+ phys_addr_t bar5_addr32;
+};
+
+struct intel_ntb_vec {
+ struct intel_ntb_dev *ndev;
+ int num;
+};
+
+struct intel_ntb_dev {
+ struct ntb_dev ntb;
+
+ /* offset of peer bar0 in b2b bar */
+ unsigned long b2b_off;
+ /* mw idx used to access peer bar0 */
+ unsigned int b2b_idx;
+
+ /* BAR45 is split into BAR4 and BAR5 */
+ bool bar4_split;
+
+ u32 ntb_ctl;
+ u32 lnk_sta;
+
+ unsigned char mw_count;
+ unsigned char spad_count;
+ unsigned char db_count;
+ unsigned char db_vec_count;
+ unsigned char db_vec_shift;
+
+ u64 db_valid_mask;
+ u64 db_link_mask;
+ u64 db_mask;
+
+ /* synchronize rmw access of db_mask and hw reg */
+ spinlock_t db_mask_lock;
+
+ struct msix_entry *msix;
+ struct intel_ntb_vec *vec;
+
+ const struct intel_ntb_reg *reg;
+ const struct intel_ntb_alt_reg *self_reg;
+ const struct intel_ntb_alt_reg *peer_reg;
+ const struct intel_ntb_xlat_reg *xlat_reg;
+ void __iomem *self_mmio;
+ void __iomem *peer_mmio;
+ phys_addr_t peer_addr;
+
+ unsigned long last_ts;
+ struct delayed_work hb_timer;
+
+ unsigned long hwerr_flags;
+ unsigned long unsafe_flags;
+ unsigned long unsafe_flags_ignore;
+
+ struct dentry *debugfs_dir;
+ struct dentry *debugfs_info;
+};
+
+#define ndev_pdev(ndev) ((ndev)->ntb.pdev)
+#define ndev_name(ndev) pci_name(ndev_pdev(ndev))
+#define ndev_dev(ndev) (&ndev_pdev(ndev)->dev)
+#define ntb_ndev(ntb) container_of(ntb, struct intel_ntb_dev, ntb)
+#define hb_ndev(work) container_of(work, struct intel_ntb_dev, hb_timer.work)
+
+#endif
diff --git a/drivers/ntb/ntb.c b/drivers/ntb/ntb.c
new file mode 100644
index 0000000..23435f2
--- /dev/null
+++ b/drivers/ntb/ntb.c
@@ -0,0 +1,251 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * PCIe NTB Linux driver
+ *
+ * Contact Information:
+ * Allen Hubbe <Allen.Hubbe@emc.com>
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/ntb.h>
+#include <linux/pci.h>
+
+#define DRIVER_NAME "ntb"
+#define DRIVER_DESCRIPTION "PCIe NTB Driver Framework"
+
+#define DRIVER_LICENSE "Dual BSD/GPL"
+#define DRIVER_VERSION "1.0"
+#define DRIVER_RELDATE "24 March 2015"
+#define DRIVER_AUTHOR "Allen Hubbe <Allen.Hubbe@emc.com>"
+
+MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+
+static struct bus_type ntb_bus;
+static void ntb_dev_release(struct device *dev);
+
+int __ntb_register_client(struct ntb_client *client, struct module *mod,
+ const char *mod_name)
+{
+ if (!client)
+ return -EINVAL;
+ if (!ntb_client_ops_is_valid(&client->ops))
+ return -EINVAL;
+
+ memset(&client->drv, 0, sizeof(client->drv));
+ client->drv.bus = &ntb_bus;
+ client->drv.name = mod_name;
+ client->drv.owner = mod;
+
+ return driver_register(&client->drv);
+}
+EXPORT_SYMBOL(__ntb_register_client);
+
+void ntb_unregister_client(struct ntb_client *client)
+{
+ driver_unregister(&client->drv);
+}
+EXPORT_SYMBOL(ntb_unregister_client);
+
+int ntb_register_device(struct ntb_dev *ntb)
+{
+ if (!ntb)
+ return -EINVAL;
+ if (!ntb->pdev)
+ return -EINVAL;
+ if (!ntb->ops)
+ return -EINVAL;
+ if (!ntb_dev_ops_is_valid(ntb->ops))
+ return -EINVAL;
+
+ init_completion(&ntb->released);
+
+ memset(&ntb->dev, 0, sizeof(ntb->dev));
+ ntb->dev.bus = &ntb_bus;
+ ntb->dev.parent = &ntb->pdev->dev;
+ ntb->dev.release = ntb_dev_release;
+ dev_set_name(&ntb->dev, pci_name(ntb->pdev));
+
+ ntb->ctx = NULL;
+ ntb->ctx_ops = NULL;
+ spin_lock_init(&ntb->ctx_lock);
+
+ return device_register(&ntb->dev);
+}
+EXPORT_SYMBOL(ntb_register_device);
+
+void ntb_unregister_device(struct ntb_dev *ntb)
+{
+ device_unregister(&ntb->dev);
+ wait_for_completion(&ntb->released);
+}
+EXPORT_SYMBOL(ntb_unregister_device);
+
+int ntb_set_ctx(struct ntb_dev *ntb, void *ctx,
+ const struct ntb_ctx_ops *ctx_ops)
+{
+ unsigned long irqflags;
+
+ if (!ntb_ctx_ops_is_valid(ctx_ops))
+ return -EINVAL;
+ if (ntb->ctx_ops)
+ return -EINVAL;
+
+ spin_lock_irqsave(&ntb->ctx_lock, irqflags);
+ {
+ ntb->ctx = ctx;
+ ntb->ctx_ops = ctx_ops;
+ }
+ spin_unlock_irqrestore(&ntb->ctx_lock, irqflags);
+
+ return 0;
+}
+EXPORT_SYMBOL(ntb_set_ctx);
+
+void ntb_clear_ctx(struct ntb_dev *ntb)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&ntb->ctx_lock, irqflags);
+ {
+ ntb->ctx_ops = NULL;
+ ntb->ctx = NULL;
+ }
+ spin_unlock_irqrestore(&ntb->ctx_lock, irqflags);
+}
+EXPORT_SYMBOL(ntb_clear_ctx);
+
+void ntb_link_event(struct ntb_dev *ntb)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&ntb->ctx_lock, irqflags);
+ {
+ if (ntb->ctx_ops && ntb->ctx_ops->link_event)
+ ntb->ctx_ops->link_event(ntb->ctx);
+ }
+ spin_unlock_irqrestore(&ntb->ctx_lock, irqflags);
+}
+EXPORT_SYMBOL(ntb_link_event);
+
+void ntb_db_event(struct ntb_dev *ntb, int vector)
+{
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&ntb->ctx_lock, irqflags);
+ {
+ if (ntb->ctx_ops && ntb->ctx_ops->db_event)
+ ntb->ctx_ops->db_event(ntb->ctx, vector);
+ }
+ spin_unlock_irqrestore(&ntb->ctx_lock, irqflags);
+}
+EXPORT_SYMBOL(ntb_db_event);
+
+static int ntb_probe(struct device *dev)
+{
+ struct ntb_dev *ntb;
+ struct ntb_client *client;
+ int rc;
+
+ get_device(dev);
+ ntb = dev_ntb(dev);
+ client = drv_ntb_client(dev->driver);
+
+ rc = client->ops.probe(client, ntb);
+ if (rc)
+ put_device(dev);
+
+ return rc;
+}
+
+static int ntb_remove(struct device *dev)
+{
+ struct ntb_dev *ntb;
+ struct ntb_client *client;
+
+ if (dev->driver) {
+ ntb = dev_ntb(dev);
+ client = drv_ntb_client(dev->driver);
+
+ client->ops.remove(client, ntb);
+ put_device(dev);
+ }
+
+ return 0;
+}
+
+static void ntb_dev_release(struct device *dev)
+{
+ struct ntb_dev *ntb = dev_ntb(dev);
+
+ complete(&ntb->released);
+}
+
+static struct bus_type ntb_bus = {
+ .name = "ntb",
+ .probe = ntb_probe,
+ .remove = ntb_remove,
+};
+
+static int __init ntb_driver_init(void)
+{
+ return bus_register(&ntb_bus);
+}
+module_init(ntb_driver_init);
+
+static void __exit ntb_driver_exit(void)
+{
+ bus_unregister(&ntb_bus);
+}
+module_exit(ntb_driver_exit);
+
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
deleted file mode 100644
index 3f67386..0000000
--- a/drivers/ntb/ntb_hw.c
+++ /dev/null
@@ -1,1895 +0,0 @@
-/*
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * BSD LICENSE
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copy
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Intel PCIe NTB Linux driver
- *
- * Contact Information:
- * Jon Mason <jon.mason@intel.com>
- */
-#include <linux/debugfs.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/random.h>
-#include <linux/slab.h>
-#include "ntb_hw.h"
-#include "ntb_regs.h"
-
-#define NTB_NAME "Intel(R) PCI-E Non-Transparent Bridge Driver"
-#define NTB_VER "1.0"
-
-MODULE_DESCRIPTION(NTB_NAME);
-MODULE_VERSION(NTB_VER);
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Intel Corporation");
-
-enum {
- NTB_CONN_TRANSPARENT = 0,
- NTB_CONN_B2B,
- NTB_CONN_RP,
-};
-
-enum {
- NTB_DEV_USD = 0,
- NTB_DEV_DSD,
-};
-
-enum {
- SNB_HW = 0,
- BWD_HW,
-};
-
-static struct dentry *debugfs_dir;
-
-#define BWD_LINK_RECOVERY_TIME 500
-
-/* Translate memory window 0,1,2 to BAR 2,4,5 */
-#define MW_TO_BAR(mw) (mw == 0 ? 2 : (mw == 1 ? 4 : 5))
-
-static const struct pci_device_id ntb_pci_tbl[] = {
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_BWD)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_JSF)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_SNB)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_IVT)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_HSX)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_JSF)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_SNB)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_IVT)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_PS_HSX)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_JSF)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_SNB)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_IVT)},
- {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_SS_HSX)},
- {0}
-};
-MODULE_DEVICE_TABLE(pci, ntb_pci_tbl);
-
-static int is_ntb_xeon(struct ntb_device *ndev)
-{
- switch (ndev->pdev->device) {
- case PCI_DEVICE_ID_INTEL_NTB_SS_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_SS_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
- case PCI_DEVICE_ID_INTEL_NTB_PS_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_PS_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
- return 1;
- default:
- return 0;
- }
-
- return 0;
-}
-
-static int is_ntb_atom(struct ntb_device *ndev)
-{
- switch (ndev->pdev->device) {
- case PCI_DEVICE_ID_INTEL_NTB_B2B_BWD:
- return 1;
- default:
- return 0;
- }
-
- return 0;
-}
-
-static void ntb_set_errata_flags(struct ntb_device *ndev)
-{
- switch (ndev->pdev->device) {
- /*
- * this workaround applies to all platform up to IvyBridge
- * Haswell has splitbar support and use a different workaround
- */
- case PCI_DEVICE_ID_INTEL_NTB_SS_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_SS_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_SS_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_SS_HSX:
- case PCI_DEVICE_ID_INTEL_NTB_PS_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_PS_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_PS_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_PS_HSX:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_JSF:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_SNB:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_IVT:
- case PCI_DEVICE_ID_INTEL_NTB_B2B_HSX:
- ndev->wa_flags |= WA_SNB_ERR;
- break;
- }
-}
-
-/**
- * ntb_register_event_callback() - register event callback
- * @ndev: pointer to ntb_device instance
- * @func: callback function to register
- *
- * This function registers a callback for any HW driver events such as link
- * up/down, power management notices and etc.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_register_event_callback(struct ntb_device *ndev,
- void (*func)(void *handle,
- enum ntb_hw_event event))
-{
- if (ndev->event_cb)
- return -EINVAL;
-
- ndev->event_cb = func;
-
- return 0;
-}
-
-/**
- * ntb_unregister_event_callback() - unregisters the event callback
- * @ndev: pointer to ntb_device instance
- *
- * This function unregisters the existing callback from transport
- */
-void ntb_unregister_event_callback(struct ntb_device *ndev)
-{
- ndev->event_cb = NULL;
-}
-
-static void ntb_irq_work(unsigned long data)
-{
- struct ntb_db_cb *db_cb = (struct ntb_db_cb *)data;
- int rc;
-
- rc = db_cb->callback(db_cb->data, db_cb->db_num);
- if (rc)
- tasklet_schedule(&db_cb->irq_work);
- else {
- struct ntb_device *ndev = db_cb->ndev;
- unsigned long mask;
-
- mask = readw(ndev->reg_ofs.ldb_mask);
- clear_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
- writew(mask, ndev->reg_ofs.ldb_mask);
- }
-}
-
-/**
- * ntb_register_db_callback() - register a callback for doorbell interrupt
- * @ndev: pointer to ntb_device instance
- * @idx: doorbell index to register callback, zero based
- * @data: pointer to be returned to caller with every callback
- * @func: callback function to register
- *
- * This function registers a callback function for the doorbell interrupt
- * on the primary side. The function will unmask the doorbell as well to
- * allow interrupt.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
- void *data, int (*func)(void *data, int db_num))
-{
- unsigned long mask;
-
- if (idx >= ndev->max_cbs || ndev->db_cb[idx].callback) {
- dev_warn(&ndev->pdev->dev, "Invalid Index.\n");
- return -EINVAL;
- }
-
- ndev->db_cb[idx].callback = func;
- ndev->db_cb[idx].data = data;
- ndev->db_cb[idx].ndev = ndev;
-
- tasklet_init(&ndev->db_cb[idx].irq_work, ntb_irq_work,
- (unsigned long) &ndev->db_cb[idx]);
-
- /* unmask interrupt */
- mask = readw(ndev->reg_ofs.ldb_mask);
- clear_bit(idx * ndev->bits_per_vector, &mask);
- writew(mask, ndev->reg_ofs.ldb_mask);
-
- return 0;
-}
-
-/**
- * ntb_unregister_db_callback() - unregister a callback for doorbell interrupt
- * @ndev: pointer to ntb_device instance
- * @idx: doorbell index to register callback, zero based
- *
- * This function unregisters a callback function for the doorbell interrupt
- * on the primary side. The function will also mask the said doorbell.
- */
-void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx)
-{
- unsigned long mask;
-
- if (idx >= ndev->max_cbs || !ndev->db_cb[idx].callback)
- return;
-
- mask = readw(ndev->reg_ofs.ldb_mask);
- set_bit(idx * ndev->bits_per_vector, &mask);
- writew(mask, ndev->reg_ofs.ldb_mask);
-
- tasklet_disable(&ndev->db_cb[idx].irq_work);
-
- ndev->db_cb[idx].callback = NULL;
-}
-
-/**
- * ntb_find_transport() - find the transport pointer
- * @transport: pointer to pci device
- *
- * Given the pci device pointer, return the transport pointer passed in when
- * the transport attached when it was inited.
- *
- * RETURNS: pointer to transport.
- */
-void *ntb_find_transport(struct pci_dev *pdev)
-{
- struct ntb_device *ndev = pci_get_drvdata(pdev);
- return ndev->ntb_transport;
-}
-
-/**
- * ntb_register_transport() - Register NTB transport with NTB HW driver
- * @transport: transport identifier
- *
- * This function allows a transport to reserve the hardware driver for
- * NTB usage.
- *
- * RETURNS: pointer to ntb_device, NULL on error.
- */
-struct ntb_device *ntb_register_transport(struct pci_dev *pdev, void *transport)
-{
- struct ntb_device *ndev = pci_get_drvdata(pdev);
-
- if (ndev->ntb_transport)
- return NULL;
-
- ndev->ntb_transport = transport;
- return ndev;
-}
-
-/**
- * ntb_unregister_transport() - Unregister the transport with the NTB HW driver
- * @ndev - ntb_device of the transport to be freed
- *
- * This function unregisters the transport from the HW driver and performs any
- * necessary cleanups.
- */
-void ntb_unregister_transport(struct ntb_device *ndev)
-{
- int i;
-
- if (!ndev->ntb_transport)
- return;
-
- for (i = 0; i < ndev->max_cbs; i++)
- ntb_unregister_db_callback(ndev, i);
-
- ntb_unregister_event_callback(ndev);
- ndev->ntb_transport = NULL;
-}
-
-/**
- * ntb_write_local_spad() - write to the secondary scratchpad register
- * @ndev: pointer to ntb_device instance
- * @idx: index to the scratchpad register, 0 based
- * @val: the data value to put into the register
- *
- * This function allows writing of a 32bit value to the indexed scratchpad
- * register. This writes over the data mirrored to the local scratchpad register
- * by the remote system.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_write_local_spad(struct ntb_device *ndev, unsigned int idx, u32 val)
-{
- if (idx >= ndev->limits.max_spads)
- return -EINVAL;
-
- dev_dbg(&ndev->pdev->dev, "Writing %x to local scratch pad index %d\n",
- val, idx);
- writel(val, ndev->reg_ofs.spad_read + idx * 4);
-
- return 0;
-}
-
-/**
- * ntb_read_local_spad() - read from the primary scratchpad register
- * @ndev: pointer to ntb_device instance
- * @idx: index to scratchpad register, 0 based
- * @val: pointer to 32bit integer for storing the register value
- *
- * This function allows reading of the 32bit scratchpad register on
- * the primary (internal) side. This allows the local system to read data
- * written and mirrored to the scratchpad register by the remote system.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_read_local_spad(struct ntb_device *ndev, unsigned int idx, u32 *val)
-{
- if (idx >= ndev->limits.max_spads)
- return -EINVAL;
-
- *val = readl(ndev->reg_ofs.spad_write + idx * 4);
- dev_dbg(&ndev->pdev->dev,
- "Reading %x from local scratch pad index %d\n", *val, idx);
-
- return 0;
-}
-
-/**
- * ntb_write_remote_spad() - write to the secondary scratchpad register
- * @ndev: pointer to ntb_device instance
- * @idx: index to the scratchpad register, 0 based
- * @val: the data value to put into the register
- *
- * This function allows writing of a 32bit value to the indexed scratchpad
- * register. The register resides on the secondary (external) side. This allows
- * the local system to write data to be mirrored to the remote systems
- * scratchpad register.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_write_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 val)
-{
- if (idx >= ndev->limits.max_spads)
- return -EINVAL;
-
- dev_dbg(&ndev->pdev->dev, "Writing %x to remote scratch pad index %d\n",
- val, idx);
- writel(val, ndev->reg_ofs.spad_write + idx * 4);
-
- return 0;
-}
-
-/**
- * ntb_read_remote_spad() - read from the primary scratchpad register
- * @ndev: pointer to ntb_device instance
- * @idx: index to scratchpad register, 0 based
- * @val: pointer to 32bit integer for storing the register value
- *
- * This function allows reading of the 32bit scratchpad register on
- * the primary (internal) side. This alloows the local system to read the data
- * it wrote to be mirrored on the remote system.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val)
-{
- if (idx >= ndev->limits.max_spads)
- return -EINVAL;
-
- *val = readl(ndev->reg_ofs.spad_read + idx * 4);
- dev_dbg(&ndev->pdev->dev,
- "Reading %x from remote scratch pad index %d\n", *val, idx);
-
- return 0;
-}
-
-/**
- * ntb_get_mw_base() - get addr for the NTB memory window
- * @ndev: pointer to ntb_device instance
- * @mw: memory window number
- *
- * This function provides the base address of the memory window specified.
- *
- * RETURNS: address, or NULL on error.
- */
-resource_size_t ntb_get_mw_base(struct ntb_device *ndev, unsigned int mw)
-{
- if (mw >= ntb_max_mw(ndev))
- return 0;
-
- return pci_resource_start(ndev->pdev, MW_TO_BAR(mw));
-}
-
-/**
- * ntb_get_mw_vbase() - get virtual addr for the NTB memory window
- * @ndev: pointer to ntb_device instance
- * @mw: memory window number
- *
- * This function provides the base virtual address of the memory window
- * specified.
- *
- * RETURNS: pointer to virtual address, or NULL on error.
- */
-void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw)
-{
- if (mw >= ntb_max_mw(ndev))
- return NULL;
-
- return ndev->mw[mw].vbase;
-}
-
-/**
- * ntb_get_mw_size() - return size of NTB memory window
- * @ndev: pointer to ntb_device instance
- * @mw: memory window number
- *
- * This function provides the physical size of the memory window specified
- *
- * RETURNS: the size of the memory window or zero on error
- */
-u64 ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw)
-{
- if (mw >= ntb_max_mw(ndev))
- return 0;
-
- return ndev->mw[mw].bar_sz;
-}
-
-/**
- * ntb_set_mw_addr - set the memory window address
- * @ndev: pointer to ntb_device instance
- * @mw: memory window number
- * @addr: base address for data
- *
- * This function sets the base physical address of the memory window. This
- * memory address is where data from the remote system will be transfered into
- * or out of depending on how the transport is configured.
- */
-void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr)
-{
- if (mw >= ntb_max_mw(ndev))
- return;
-
- dev_dbg(&ndev->pdev->dev, "Writing addr %Lx to BAR %d\n", addr,
- MW_TO_BAR(mw));
-
- ndev->mw[mw].phys_addr = addr;
-
- switch (MW_TO_BAR(mw)) {
- case NTB_BAR_23:
- writeq(addr, ndev->reg_ofs.bar2_xlat);
- break;
- case NTB_BAR_4:
- if (ndev->split_bar)
- writel(addr, ndev->reg_ofs.bar4_xlat);
- else
- writeq(addr, ndev->reg_ofs.bar4_xlat);
- break;
- case NTB_BAR_5:
- writel(addr, ndev->reg_ofs.bar5_xlat);
- break;
- }
-}
-
-/**
- * ntb_ring_doorbell() - Set the doorbell on the secondary/external side
- * @ndev: pointer to ntb_device instance
- * @db: doorbell to ring
- *
- * This function allows triggering of a doorbell on the secondary/external
- * side that will initiate an interrupt on the remote host
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-void ntb_ring_doorbell(struct ntb_device *ndev, unsigned int db)
-{
- dev_dbg(&ndev->pdev->dev, "%s: ringing doorbell %d\n", __func__, db);
-
- if (ndev->hw_type == BWD_HW)
- writeq((u64) 1 << db, ndev->reg_ofs.rdb);
- else
- writew(((1 << ndev->bits_per_vector) - 1) <<
- (db * ndev->bits_per_vector), ndev->reg_ofs.rdb);
-}
-
-static void bwd_recover_link(struct ntb_device *ndev)
-{
- u32 status;
-
- /* Driver resets the NTB ModPhy lanes - magic! */
- writeb(0xe0, ndev->reg_base + BWD_MODPHY_PCSREG6);
- writeb(0x40, ndev->reg_base + BWD_MODPHY_PCSREG4);
- writeb(0x60, ndev->reg_base + BWD_MODPHY_PCSREG4);
- writeb(0x60, ndev->reg_base + BWD_MODPHY_PCSREG6);
-
- /* Driver waits 100ms to allow the NTB ModPhy to settle */
- msleep(100);
-
- /* Clear AER Errors, write to clear */
- status = readl(ndev->reg_base + BWD_ERRCORSTS_OFFSET);
- dev_dbg(&ndev->pdev->dev, "ERRCORSTS = %x\n", status);
- status &= PCI_ERR_COR_REP_ROLL;
- writel(status, ndev->reg_base + BWD_ERRCORSTS_OFFSET);
-
- /* Clear unexpected electrical idle event in LTSSM, write to clear */
- status = readl(ndev->reg_base + BWD_LTSSMERRSTS0_OFFSET);
- dev_dbg(&ndev->pdev->dev, "LTSSMERRSTS0 = %x\n", status);
- status |= BWD_LTSSMERRSTS0_UNEXPECTEDEI;
- writel(status, ndev->reg_base + BWD_LTSSMERRSTS0_OFFSET);
-
- /* Clear DeSkew Buffer error, write to clear */
- status = readl(ndev->reg_base + BWD_DESKEWSTS_OFFSET);
- dev_dbg(&ndev->pdev->dev, "DESKEWSTS = %x\n", status);
- status |= BWD_DESKEWSTS_DBERR;
- writel(status, ndev->reg_base + BWD_DESKEWSTS_OFFSET);
-
- status = readl(ndev->reg_base + BWD_IBSTERRRCRVSTS0_OFFSET);
- dev_dbg(&ndev->pdev->dev, "IBSTERRRCRVSTS0 = %x\n", status);
- status &= BWD_IBIST_ERR_OFLOW;
- writel(status, ndev->reg_base + BWD_IBSTERRRCRVSTS0_OFFSET);
-
- /* Releases the NTB state machine to allow the link to retrain */
- status = readl(ndev->reg_base + BWD_LTSSMSTATEJMP_OFFSET);
- dev_dbg(&ndev->pdev->dev, "LTSSMSTATEJMP = %x\n", status);
- status &= ~BWD_LTSSMSTATEJMP_FORCEDETECT;
- writel(status, ndev->reg_base + BWD_LTSSMSTATEJMP_OFFSET);
-}
-
-static void ntb_link_event(struct ntb_device *ndev, int link_state)
-{
- unsigned int event;
-
- if (ndev->link_status == link_state)
- return;
-
- if (link_state == NTB_LINK_UP) {
- u16 status;
-
- dev_info(&ndev->pdev->dev, "Link Up\n");
- ndev->link_status = NTB_LINK_UP;
- event = NTB_EVENT_HW_LINK_UP;
-
- if (is_ntb_atom(ndev) ||
- ndev->conn_type == NTB_CONN_TRANSPARENT)
- status = readw(ndev->reg_ofs.lnk_stat);
- else {
- int rc = pci_read_config_word(ndev->pdev,
- SNB_LINK_STATUS_OFFSET,
- &status);
- if (rc)
- return;
- }
-
- ndev->link_width = (status & NTB_LINK_WIDTH_MASK) >> 4;
- ndev->link_speed = (status & NTB_LINK_SPEED_MASK);
- dev_info(&ndev->pdev->dev, "Link Width %d, Link Speed %d\n",
- ndev->link_width, ndev->link_speed);
- } else {
- dev_info(&ndev->pdev->dev, "Link Down\n");
- ndev->link_status = NTB_LINK_DOWN;
- event = NTB_EVENT_HW_LINK_DOWN;
- /* Don't modify link width/speed, we need it in link recovery */
- }
-
- /* notify the upper layer if we have an event change */
- if (ndev->event_cb)
- ndev->event_cb(ndev->ntb_transport, event);
-}
-
-static int ntb_link_status(struct ntb_device *ndev)
-{
- int link_state;
-
- if (is_ntb_atom(ndev)) {
- u32 ntb_cntl;
-
- ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
- if (ntb_cntl & BWD_CNTL_LINK_DOWN)
- link_state = NTB_LINK_DOWN;
- else
- link_state = NTB_LINK_UP;
- } else {
- u16 status;
- int rc;
-
- rc = pci_read_config_word(ndev->pdev, SNB_LINK_STATUS_OFFSET,
- &status);
- if (rc)
- return rc;
-
- if (status & NTB_LINK_STATUS_ACTIVE)
- link_state = NTB_LINK_UP;
- else
- link_state = NTB_LINK_DOWN;
- }
-
- ntb_link_event(ndev, link_state);
-
- return 0;
-}
-
-static void bwd_link_recovery(struct work_struct *work)
-{
- struct ntb_device *ndev = container_of(work, struct ntb_device,
- lr_timer.work);
- u32 status32;
-
- bwd_recover_link(ndev);
- /* There is a potential race between the 2 NTB devices recovering at the
- * same time. If the times are the same, the link will not recover and
- * the driver will be stuck in this loop forever. Add a random interval
- * to the recovery time to prevent this race.
- */
- msleep(BWD_LINK_RECOVERY_TIME + prandom_u32() % BWD_LINK_RECOVERY_TIME);
-
- status32 = readl(ndev->reg_base + BWD_LTSSMSTATEJMP_OFFSET);
- if (status32 & BWD_LTSSMSTATEJMP_FORCEDETECT)
- goto retry;
-
- status32 = readl(ndev->reg_base + BWD_IBSTERRRCRVSTS0_OFFSET);
- if (status32 & BWD_IBIST_ERR_OFLOW)
- goto retry;
-
- status32 = readl(ndev->reg_ofs.lnk_cntl);
- if (!(status32 & BWD_CNTL_LINK_DOWN)) {
- unsigned char speed, width;
- u16 status16;
-
- status16 = readw(ndev->reg_ofs.lnk_stat);
- width = (status16 & NTB_LINK_WIDTH_MASK) >> 4;
- speed = (status16 & NTB_LINK_SPEED_MASK);
- if (ndev->link_width != width || ndev->link_speed != speed)
- goto retry;
- }
-
- schedule_delayed_work(&ndev->hb_timer, NTB_HB_TIMEOUT);
- return;
-
-retry:
- schedule_delayed_work(&ndev->lr_timer, NTB_HB_TIMEOUT);
-}
-
-/* BWD doesn't have link status interrupt, poll on that platform */
-static void bwd_link_poll(struct work_struct *work)
-{
- struct ntb_device *ndev = container_of(work, struct ntb_device,
- hb_timer.work);
- unsigned long ts = jiffies;
-
- /* If we haven't gotten an interrupt in a while, check the BWD link
- * status bit
- */
- if (ts > ndev->last_ts + NTB_HB_TIMEOUT) {
- int rc = ntb_link_status(ndev);
- if (rc)
- dev_err(&ndev->pdev->dev,
- "Error determining link status\n");
-
- /* Check to see if a link error is the cause of the link down */
- if (ndev->link_status == NTB_LINK_DOWN) {
- u32 status32 = readl(ndev->reg_base +
- BWD_LTSSMSTATEJMP_OFFSET);
- if (status32 & BWD_LTSSMSTATEJMP_FORCEDETECT) {
- schedule_delayed_work(&ndev->lr_timer, 0);
- return;
- }
- }
- }
-
- schedule_delayed_work(&ndev->hb_timer, NTB_HB_TIMEOUT);
-}
-
-static int ntb_xeon_setup(struct ntb_device *ndev)
-{
- switch (ndev->conn_type) {
- case NTB_CONN_B2B:
- ndev->reg_ofs.ldb = ndev->reg_base + SNB_PDOORBELL_OFFSET;
- ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_PDBMSK_OFFSET;
- ndev->reg_ofs.spad_read = ndev->reg_base + SNB_SPAD_OFFSET;
- ndev->reg_ofs.bar2_xlat = ndev->reg_base + SNB_SBAR2XLAT_OFFSET;
- ndev->reg_ofs.bar4_xlat = ndev->reg_base + SNB_SBAR4XLAT_OFFSET;
- if (ndev->split_bar)
- ndev->reg_ofs.bar5_xlat =
- ndev->reg_base + SNB_SBAR5XLAT_OFFSET;
- ndev->limits.max_spads = SNB_MAX_B2B_SPADS;
-
- /* There is a Xeon hardware errata related to writes to
- * SDOORBELL or B2BDOORBELL in conjunction with inbound access
- * to NTB MMIO Space, which may hang the system. To workaround
- * this use the second memory window to access the interrupt and
- * scratch pad registers on the remote system.
- */
- if (ndev->wa_flags & WA_SNB_ERR) {
- if (!ndev->mw[ndev->limits.max_mw - 1].bar_sz)
- return -EINVAL;
-
- ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
- ndev->reg_ofs.spad_write =
- ndev->mw[ndev->limits.max_mw - 1].vbase +
- SNB_SPAD_OFFSET;
- ndev->reg_ofs.rdb =
- ndev->mw[ndev->limits.max_mw - 1].vbase +
- SNB_PDOORBELL_OFFSET;
-
- /* Set the Limit register to 4k, the minimum size, to
- * prevent an illegal access
- */
- writeq(ndev->mw[1].bar_sz + 0x1000, ndev->reg_base +
- SNB_PBAR4LMT_OFFSET);
- /* HW errata on the Limit registers. They can only be
- * written when the base register is 4GB aligned and
- * < 32bit. This should already be the case based on
- * the driver defaults, but write the Limit registers
- * first just in case.
- */
-
- ndev->limits.max_mw = SNB_ERRATA_MAX_MW;
- } else {
- /* HW Errata on bit 14 of b2bdoorbell register. Writes
- * will not be mirrored to the remote system. Shrink
- * the number of bits by one, since bit 14 is the last
- * bit.
- */
- ndev->limits.max_db_bits = SNB_MAX_DB_BITS - 1;
- ndev->reg_ofs.spad_write = ndev->reg_base +
- SNB_B2B_SPAD_OFFSET;
- ndev->reg_ofs.rdb = ndev->reg_base +
- SNB_B2B_DOORBELL_OFFSET;
-
- /* Disable the Limit register, just incase it is set to
- * something silly. A 64bit write should handle it
- * regardless of whether it has a split BAR or not.
- */
- writeq(0, ndev->reg_base + SNB_PBAR4LMT_OFFSET);
- /* HW errata on the Limit registers. They can only be
- * written when the base register is 4GB aligned and
- * < 32bit. This should already be the case based on
- * the driver defaults, but write the Limit registers
- * first just in case.
- */
- if (ndev->split_bar)
- ndev->limits.max_mw = HSX_SPLITBAR_MAX_MW;
- else
- ndev->limits.max_mw = SNB_MAX_MW;
- }
-
- /* The Xeon errata workaround requires setting SBAR Base
- * addresses to known values, so that the PBAR XLAT can be
- * pointed at SBAR0 of the remote system.
- */
- if (ndev->dev_type == NTB_DEV_USD) {
- writeq(SNB_MBAR23_DSD_ADDR, ndev->reg_base +
- SNB_PBAR2XLAT_OFFSET);
- if (ndev->wa_flags & WA_SNB_ERR)
- writeq(SNB_MBAR01_DSD_ADDR, ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
- else {
- if (ndev->split_bar) {
- writel(SNB_MBAR4_DSD_ADDR,
- ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
- writel(SNB_MBAR5_DSD_ADDR,
- ndev->reg_base +
- SNB_PBAR5XLAT_OFFSET);
- } else
- writeq(SNB_MBAR4_DSD_ADDR,
- ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
-
- /* B2B_XLAT_OFFSET is a 64bit register, but can
- * only take 32bit writes
- */
- writel(SNB_MBAR01_DSD_ADDR & 0xffffffff,
- ndev->reg_base + SNB_B2B_XLAT_OFFSETL);
- writel(SNB_MBAR01_DSD_ADDR >> 32,
- ndev->reg_base + SNB_B2B_XLAT_OFFSETU);
- }
-
- writeq(SNB_MBAR01_USD_ADDR, ndev->reg_base +
- SNB_SBAR0BASE_OFFSET);
- writeq(SNB_MBAR23_USD_ADDR, ndev->reg_base +
- SNB_SBAR2BASE_OFFSET);
- if (ndev->split_bar) {
- writel(SNB_MBAR4_USD_ADDR, ndev->reg_base +
- SNB_SBAR4BASE_OFFSET);
- writel(SNB_MBAR5_USD_ADDR, ndev->reg_base +
- SNB_SBAR5BASE_OFFSET);
- } else
- writeq(SNB_MBAR4_USD_ADDR, ndev->reg_base +
- SNB_SBAR4BASE_OFFSET);
- } else {
- writeq(SNB_MBAR23_USD_ADDR, ndev->reg_base +
- SNB_PBAR2XLAT_OFFSET);
- if (ndev->wa_flags & WA_SNB_ERR)
- writeq(SNB_MBAR01_USD_ADDR, ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
- else {
- if (ndev->split_bar) {
- writel(SNB_MBAR4_USD_ADDR,
- ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
- writel(SNB_MBAR5_USD_ADDR,
- ndev->reg_base +
- SNB_PBAR5XLAT_OFFSET);
- } else
- writeq(SNB_MBAR4_USD_ADDR,
- ndev->reg_base +
- SNB_PBAR4XLAT_OFFSET);
-
- /*
- * B2B_XLAT_OFFSET is a 64bit register, but can
- * only take 32bit writes
- */
- writel(SNB_MBAR01_USD_ADDR & 0xffffffff,
- ndev->reg_base + SNB_B2B_XLAT_OFFSETL);
- writel(SNB_MBAR01_USD_ADDR >> 32,
- ndev->reg_base + SNB_B2B_XLAT_OFFSETU);
- }
- writeq(SNB_MBAR01_DSD_ADDR, ndev->reg_base +
- SNB_SBAR0BASE_OFFSET);
- writeq(SNB_MBAR23_DSD_ADDR, ndev->reg_base +
- SNB_SBAR2BASE_OFFSET);
- if (ndev->split_bar) {
- writel(SNB_MBAR4_DSD_ADDR, ndev->reg_base +
- SNB_SBAR4BASE_OFFSET);
- writel(SNB_MBAR5_DSD_ADDR, ndev->reg_base +
- SNB_SBAR5BASE_OFFSET);
- } else
- writeq(SNB_MBAR4_DSD_ADDR, ndev->reg_base +
- SNB_SBAR4BASE_OFFSET);
-
- }
- break;
- case NTB_CONN_RP:
- if (ndev->wa_flags & WA_SNB_ERR) {
- dev_err(&ndev->pdev->dev,
- "NTB-RP disabled due to hardware errata.\n");
- return -EINVAL;
- }
-
- /* Scratch pads need to have exclusive access from the primary
- * or secondary side. Halve the num spads so that each side can
- * have an equal amount.
- */
- ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2;
- ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
- /* Note: The SDOORBELL is the cause of the errata. You REALLY
- * don't want to touch it.
- */
- ndev->reg_ofs.rdb = ndev->reg_base + SNB_SDOORBELL_OFFSET;
- ndev->reg_ofs.ldb = ndev->reg_base + SNB_PDOORBELL_OFFSET;
- ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_PDBMSK_OFFSET;
- /* Offset the start of the spads to correspond to whether it is
- * primary or secondary
- */
- ndev->reg_ofs.spad_write = ndev->reg_base + SNB_SPAD_OFFSET +
- ndev->limits.max_spads * 4;
- ndev->reg_ofs.spad_read = ndev->reg_base + SNB_SPAD_OFFSET;
- ndev->reg_ofs.bar2_xlat = ndev->reg_base + SNB_SBAR2XLAT_OFFSET;
- ndev->reg_ofs.bar4_xlat = ndev->reg_base + SNB_SBAR4XLAT_OFFSET;
- if (ndev->split_bar) {
- ndev->reg_ofs.bar5_xlat =
- ndev->reg_base + SNB_SBAR5XLAT_OFFSET;
- ndev->limits.max_mw = HSX_SPLITBAR_MAX_MW;
- } else
- ndev->limits.max_mw = SNB_MAX_MW;
- break;
- case NTB_CONN_TRANSPARENT:
- if (ndev->wa_flags & WA_SNB_ERR) {
- dev_err(&ndev->pdev->dev,
- "NTB-TRANSPARENT disabled due to hardware errata.\n");
- return -EINVAL;
- }
-
- /* Scratch pads need to have exclusive access from the primary
- * or secondary side. Halve the num spads so that each side can
- * have an equal amount.
- */
- ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2;
- ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
- ndev->reg_ofs.rdb = ndev->reg_base + SNB_PDOORBELL_OFFSET;
- ndev->reg_ofs.ldb = ndev->reg_base + SNB_SDOORBELL_OFFSET;
- ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_SDBMSK_OFFSET;
- ndev->reg_ofs.spad_write = ndev->reg_base + SNB_SPAD_OFFSET;
- /* Offset the start of the spads to correspond to whether it is
- * primary or secondary
- */
- ndev->reg_ofs.spad_read = ndev->reg_base + SNB_SPAD_OFFSET +
- ndev->limits.max_spads * 4;
- ndev->reg_ofs.bar2_xlat = ndev->reg_base + SNB_PBAR2XLAT_OFFSET;
- ndev->reg_ofs.bar4_xlat = ndev->reg_base + SNB_PBAR4XLAT_OFFSET;
-
- if (ndev->split_bar) {
- ndev->reg_ofs.bar5_xlat =
- ndev->reg_base + SNB_PBAR5XLAT_OFFSET;
- ndev->limits.max_mw = HSX_SPLITBAR_MAX_MW;
- } else
- ndev->limits.max_mw = SNB_MAX_MW;
- break;
- default:
- /*
- * we should never hit this. the detect function should've
- * take cared of everything.
- */
- return -EINVAL;
- }
-
- ndev->reg_ofs.lnk_cntl = ndev->reg_base + SNB_NTBCNTL_OFFSET;
- ndev->reg_ofs.lnk_stat = ndev->reg_base + SNB_SLINK_STATUS_OFFSET;
- ndev->reg_ofs.spci_cmd = ndev->reg_base + SNB_PCICMD_OFFSET;
-
- ndev->limits.msix_cnt = SNB_MSIX_CNT;
- ndev->bits_per_vector = SNB_DB_BITS_PER_VEC;
-
- return 0;
-}
-
-static int ntb_bwd_setup(struct ntb_device *ndev)
-{
- int rc;
- u32 val;
-
- ndev->hw_type = BWD_HW;
-
- rc = pci_read_config_dword(ndev->pdev, NTB_PPD_OFFSET, &val);
- if (rc)
- return rc;
-
- switch ((val & BWD_PPD_CONN_TYPE) >> 8) {
- case NTB_CONN_B2B:
- ndev->conn_type = NTB_CONN_B2B;
- break;
- case NTB_CONN_RP:
- default:
- dev_err(&ndev->pdev->dev, "Unsupported NTB configuration\n");
- return -EINVAL;
- }
-
- if (val & BWD_PPD_DEV_TYPE)
- ndev->dev_type = NTB_DEV_DSD;
- else
- ndev->dev_type = NTB_DEV_USD;
-
- /* Initiate PCI-E link training */
- rc = pci_write_config_dword(ndev->pdev, NTB_PPD_OFFSET,
- val | BWD_PPD_INIT_LINK);
- if (rc)
- return rc;
-
- ndev->reg_ofs.ldb = ndev->reg_base + BWD_PDOORBELL_OFFSET;
- ndev->reg_ofs.ldb_mask = ndev->reg_base + BWD_PDBMSK_OFFSET;
- ndev->reg_ofs.rdb = ndev->reg_base + BWD_B2B_DOORBELL_OFFSET;
- ndev->reg_ofs.bar2_xlat = ndev->reg_base + BWD_SBAR2XLAT_OFFSET;
- ndev->reg_ofs.bar4_xlat = ndev->reg_base + BWD_SBAR4XLAT_OFFSET;
- ndev->reg_ofs.lnk_cntl = ndev->reg_base + BWD_NTBCNTL_OFFSET;
- ndev->reg_ofs.lnk_stat = ndev->reg_base + BWD_LINK_STATUS_OFFSET;
- ndev->reg_ofs.spad_read = ndev->reg_base + BWD_SPAD_OFFSET;
- ndev->reg_ofs.spad_write = ndev->reg_base + BWD_B2B_SPAD_OFFSET;
- ndev->reg_ofs.spci_cmd = ndev->reg_base + BWD_PCICMD_OFFSET;
- ndev->limits.max_mw = BWD_MAX_MW;
- ndev->limits.max_spads = BWD_MAX_SPADS;
- ndev->limits.max_db_bits = BWD_MAX_DB_BITS;
- ndev->limits.msix_cnt = BWD_MSIX_CNT;
- ndev->bits_per_vector = BWD_DB_BITS_PER_VEC;
-
- /* Since bwd doesn't have a link interrupt, setup a poll timer */
- INIT_DELAYED_WORK(&ndev->hb_timer, bwd_link_poll);
- INIT_DELAYED_WORK(&ndev->lr_timer, bwd_link_recovery);
- schedule_delayed_work(&ndev->hb_timer, NTB_HB_TIMEOUT);
-
- return 0;
-}
-
-static int ntb_device_setup(struct ntb_device *ndev)
-{
- int rc;
-
- if (is_ntb_xeon(ndev))
- rc = ntb_xeon_setup(ndev);
- else if (is_ntb_atom(ndev))
- rc = ntb_bwd_setup(ndev);
- else
- rc = -ENODEV;
-
- if (rc)
- return rc;
-
- if (ndev->conn_type == NTB_CONN_B2B)
- /* Enable Bus Master and Memory Space on the secondary side */
- writew(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER,
- ndev->reg_ofs.spci_cmd);
-
- return 0;
-}
-
-static void ntb_device_free(struct ntb_device *ndev)
-{
- if (is_ntb_atom(ndev)) {
- cancel_delayed_work_sync(&ndev->hb_timer);
- cancel_delayed_work_sync(&ndev->lr_timer);
- }
-}
-
-static irqreturn_t bwd_callback_msix_irq(int irq, void *data)
-{
- struct ntb_db_cb *db_cb = data;
- struct ntb_device *ndev = db_cb->ndev;
- unsigned long mask;
-
- dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq,
- db_cb->db_num);
-
- mask = readw(ndev->reg_ofs.ldb_mask);
- set_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
- writew(mask, ndev->reg_ofs.ldb_mask);
-
- tasklet_schedule(&db_cb->irq_work);
-
- /* No need to check for the specific HB irq, any interrupt means
- * we're connected.
- */
- ndev->last_ts = jiffies;
-
- writeq((u64) 1 << db_cb->db_num, ndev->reg_ofs.ldb);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t xeon_callback_msix_irq(int irq, void *data)
-{
- struct ntb_db_cb *db_cb = data;
- struct ntb_device *ndev = db_cb->ndev;
- unsigned long mask;
-
- dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq,
- db_cb->db_num);
-
- mask = readw(ndev->reg_ofs.ldb_mask);
- set_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
- writew(mask, ndev->reg_ofs.ldb_mask);
-
- tasklet_schedule(&db_cb->irq_work);
-
- /* On Sandybridge, there are 16 bits in the interrupt register
- * but only 4 vectors. So, 5 bits are assigned to the first 3
- * vectors, with the 4th having a single bit for link
- * interrupts.
- */
- writew(((1 << ndev->bits_per_vector) - 1) <<
- (db_cb->db_num * ndev->bits_per_vector), ndev->reg_ofs.ldb);
-
- return IRQ_HANDLED;
-}
-
-/* Since we do not have a HW doorbell in BWD, this is only used in JF/JT */
-static irqreturn_t xeon_event_msix_irq(int irq, void *dev)
-{
- struct ntb_device *ndev = dev;
- int rc;
-
- dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for Events\n", irq);
-
- rc = ntb_link_status(ndev);
- if (rc)
- dev_err(&ndev->pdev->dev, "Error determining link status\n");
-
- /* bit 15 is always the link bit */
- writew(1 << SNB_LINK_DB, ndev->reg_ofs.ldb);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ntb_interrupt(int irq, void *dev)
-{
- struct ntb_device *ndev = dev;
- unsigned int i = 0;
-
- if (is_ntb_atom(ndev)) {
- u64 ldb = readq(ndev->reg_ofs.ldb);
-
- dev_dbg(&ndev->pdev->dev, "irq %d - ldb = %Lx\n", irq, ldb);
-
- while (ldb) {
- i = __ffs(ldb);
- ldb &= ldb - 1;
- bwd_callback_msix_irq(irq, &ndev->db_cb[i]);
- }
- } else {
- u16 ldb = readw(ndev->reg_ofs.ldb);
-
- dev_dbg(&ndev->pdev->dev, "irq %d - ldb = %x\n", irq, ldb);
-
- if (ldb & SNB_DB_HW_LINK) {
- xeon_event_msix_irq(irq, dev);
- ldb &= ~SNB_DB_HW_LINK;
- }
-
- while (ldb) {
- i = __ffs(ldb);
- ldb &= ldb - 1;
- xeon_callback_msix_irq(irq, &ndev->db_cb[i]);
- }
- }
-
- return IRQ_HANDLED;
-}
-
-static int ntb_setup_snb_msix(struct ntb_device *ndev, int msix_entries)
-{
- struct pci_dev *pdev = ndev->pdev;
- struct msix_entry *msix;
- int rc, i;
-
- if (msix_entries < ndev->limits.msix_cnt)
- return -ENOSPC;
-
- rc = pci_enable_msix_exact(pdev, ndev->msix_entries, msix_entries);
- if (rc < 0)
- return rc;
-
- for (i = 0; i < msix_entries; i++) {
- msix = &ndev->msix_entries[i];
- WARN_ON(!msix->vector);
-
- if (i == msix_entries - 1) {
- rc = request_irq(msix->vector,
- xeon_event_msix_irq, 0,
- "ntb-event-msix", ndev);
- if (rc)
- goto err;
- } else {
- rc = request_irq(msix->vector,
- xeon_callback_msix_irq, 0,
- "ntb-callback-msix",
- &ndev->db_cb[i]);
- if (rc)
- goto err;
- }
- }
-
- ndev->num_msix = msix_entries;
- ndev->max_cbs = msix_entries - 1;
-
- return 0;
-
-err:
- while (--i >= 0) {
- /* Code never reaches here for entry nr 'ndev->num_msix - 1' */
- msix = &ndev->msix_entries[i];
- free_irq(msix->vector, &ndev->db_cb[i]);
- }
-
- pci_disable_msix(pdev);
- ndev->num_msix = 0;
-
- return rc;
-}
-
-static int ntb_setup_bwd_msix(struct ntb_device *ndev, int msix_entries)
-{
- struct pci_dev *pdev = ndev->pdev;
- struct msix_entry *msix;
- int rc, i;
-
- msix_entries = pci_enable_msix_range(pdev, ndev->msix_entries,
- 1, msix_entries);
- if (msix_entries < 0)
- return msix_entries;
-
- for (i = 0; i < msix_entries; i++) {
- msix = &ndev->msix_entries[i];
- WARN_ON(!msix->vector);
-
- rc = request_irq(msix->vector, bwd_callback_msix_irq, 0,
- "ntb-callback-msix", &ndev->db_cb[i]);
- if (rc)
- goto err;
- }
-
- ndev->num_msix = msix_entries;
- ndev->max_cbs = msix_entries;
-
- return 0;
-
-err:
- while (--i >= 0)
- free_irq(msix->vector, &ndev->db_cb[i]);
-
- pci_disable_msix(pdev);
- ndev->num_msix = 0;
-
- return rc;
-}
-
-static int ntb_setup_msix(struct ntb_device *ndev)
-{
- struct pci_dev *pdev = ndev->pdev;
- int msix_entries;
- int rc, i;
-
- msix_entries = pci_msix_vec_count(pdev);
- if (msix_entries < 0) {
- rc = msix_entries;
- goto err;
- } else if (msix_entries > ndev->limits.msix_cnt) {
- rc = -EINVAL;
- goto err;
- }
-
- ndev->msix_entries = kmalloc(sizeof(struct msix_entry) * msix_entries,
- GFP_KERNEL);
- if (!ndev->msix_entries) {
- rc = -ENOMEM;
- goto err;
- }
-
- for (i = 0; i < msix_entries; i++)
- ndev->msix_entries[i].entry = i;
-
- if (is_ntb_atom(ndev))
- rc = ntb_setup_bwd_msix(ndev, msix_entries);
- else
- rc = ntb_setup_snb_msix(ndev, msix_entries);
- if (rc)
- goto err1;
-
- return 0;
-
-err1:
- kfree(ndev->msix_entries);
-err:
- dev_err(&pdev->dev, "Error allocating MSI-X interrupt\n");
- return rc;
-}
-
-static int ntb_setup_msi(struct ntb_device *ndev)
-{
- struct pci_dev *pdev = ndev->pdev;
- int rc;
-
- rc = pci_enable_msi(pdev);
- if (rc)
- return rc;
-
- rc = request_irq(pdev->irq, ntb_interrupt, 0, "ntb-msi", ndev);
- if (rc) {
- pci_disable_msi(pdev);
- dev_err(&pdev->dev, "Error allocating MSI interrupt\n");
- return rc;
- }
-
- return 0;
-}
-
-static int ntb_setup_intx(struct ntb_device *ndev)
-{
- struct pci_dev *pdev = ndev->pdev;
- int rc;
-
- /* Verify intx is enabled */
- pci_intx(pdev, 1);
-
- rc = request_irq(pdev->irq, ntb_interrupt, IRQF_SHARED, "ntb-intx",
- ndev);
- if (rc)
- return rc;
-
- return 0;
-}
-
-static int ntb_setup_interrupts(struct ntb_device *ndev)
-{
- int rc;
-
- /* On BWD, disable all interrupts. On SNB, disable all but Link
- * Interrupt. The rest will be unmasked as callbacks are registered.
- */
- if (is_ntb_atom(ndev))
- writeq(~0, ndev->reg_ofs.ldb_mask);
- else {
- u16 var = 1 << SNB_LINK_DB;
- writew(~var, ndev->reg_ofs.ldb_mask);
- }
-
- rc = ntb_setup_msix(ndev);
- if (!rc)
- goto done;
-
- ndev->bits_per_vector = 1;
- ndev->max_cbs = ndev->limits.max_db_bits;
-
- rc = ntb_setup_msi(ndev);
- if (!rc)
- goto done;
-
- rc = ntb_setup_intx(ndev);
- if (rc) {
- dev_err(&ndev->pdev->dev, "no usable interrupts\n");
- return rc;
- }
-
-done:
- return 0;
-}
-
-static void ntb_free_interrupts(struct ntb_device *ndev)
-{
- struct pci_dev *pdev = ndev->pdev;
-
- /* mask interrupts */
- if (is_ntb_atom(ndev))
- writeq(~0, ndev->reg_ofs.ldb_mask);
- else
- writew(~0, ndev->reg_ofs.ldb_mask);
-
- if (ndev->num_msix) {
- struct msix_entry *msix;
- u32 i;
-
- for (i = 0; i < ndev->num_msix; i++) {
- msix = &ndev->msix_entries[i];
- if (is_ntb_xeon(ndev) && i == ndev->num_msix - 1)
- free_irq(msix->vector, ndev);
- else
- free_irq(msix->vector, &ndev->db_cb[i]);
- }
- pci_disable_msix(pdev);
- kfree(ndev->msix_entries);
- } else {
- free_irq(pdev->irq, ndev);
-
- if (pci_dev_msi_enabled(pdev))
- pci_disable_msi(pdev);
- }
-}
-
-static int ntb_create_callbacks(struct ntb_device *ndev)
-{
- int i;
-
- /* Chicken-egg issue. We won't know how many callbacks are necessary
- * until we see how many MSI-X vectors we get, but these pointers need
- * to be passed into the MSI-X register function. So, we allocate the
- * max, knowing that they might not all be used, to work around this.
- */
- ndev->db_cb = kcalloc(ndev->limits.max_db_bits,
- sizeof(struct ntb_db_cb),
- GFP_KERNEL);
- if (!ndev->db_cb)
- return -ENOMEM;
-
- for (i = 0; i < ndev->limits.max_db_bits; i++) {
- ndev->db_cb[i].db_num = i;
- ndev->db_cb[i].ndev = ndev;
- }
-
- return 0;
-}
-
-static void ntb_free_callbacks(struct ntb_device *ndev)
-{
- int i;
-
- for (i = 0; i < ndev->limits.max_db_bits; i++)
- ntb_unregister_db_callback(ndev, i);
-
- kfree(ndev->db_cb);
-}
-
-static ssize_t ntb_debugfs_read(struct file *filp, char __user *ubuf,
- size_t count, loff_t *offp)
-{
- struct ntb_device *ndev;
- char *buf;
- ssize_t ret, offset, out_count;
-
- out_count = 500;
-
- buf = kmalloc(out_count, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- ndev = filp->private_data;
- offset = 0;
- offset += snprintf(buf + offset, out_count - offset,
- "NTB Device Information:\n");
- offset += snprintf(buf + offset, out_count - offset,
- "Connection Type - \t\t%s\n",
- ndev->conn_type == NTB_CONN_TRANSPARENT ?
- "Transparent" : (ndev->conn_type == NTB_CONN_B2B) ?
- "Back to back" : "Root Port");
- offset += snprintf(buf + offset, out_count - offset,
- "Device Type - \t\t\t%s\n",
- ndev->dev_type == NTB_DEV_USD ?
- "DSD/USP" : "USD/DSP");
- offset += snprintf(buf + offset, out_count - offset,
- "Max Number of Callbacks - \t%u\n",
- ntb_max_cbs(ndev));
- offset += snprintf(buf + offset, out_count - offset,
- "Link Status - \t\t\t%s\n",
- ntb_hw_link_status(ndev) ? "Up" : "Down");
- if (ntb_hw_link_status(ndev)) {
- offset += snprintf(buf + offset, out_count - offset,
- "Link Speed - \t\t\tPCI-E Gen %u\n",
- ndev->link_speed);
- offset += snprintf(buf + offset, out_count - offset,
- "Link Width - \t\t\tx%u\n",
- ndev->link_width);
- }
-
- if (is_ntb_xeon(ndev)) {
- u32 status32;
- u16 status16;
- int rc;
-
- offset += snprintf(buf + offset, out_count - offset,
- "\nNTB Device Statistics:\n");
- offset += snprintf(buf + offset, out_count - offset,
- "Upstream Memory Miss - \t%u\n",
- readw(ndev->reg_base +
- SNB_USMEMMISS_OFFSET));
-
- offset += snprintf(buf + offset, out_count - offset,
- "\nNTB Hardware Errors:\n");
-
- rc = pci_read_config_word(ndev->pdev, SNB_DEVSTS_OFFSET,
- &status16);
- if (!rc)
- offset += snprintf(buf + offset, out_count - offset,
- "DEVSTS - \t%#06x\n", status16);
-
- rc = pci_read_config_word(ndev->pdev, SNB_LINK_STATUS_OFFSET,
- &status16);
- if (!rc)
- offset += snprintf(buf + offset, out_count - offset,
- "LNKSTS - \t%#06x\n", status16);
-
- rc = pci_read_config_dword(ndev->pdev, SNB_UNCERRSTS_OFFSET,
- &status32);
- if (!rc)
- offset += snprintf(buf + offset, out_count - offset,
- "UNCERRSTS - \t%#010x\n", status32);
-
- rc = pci_read_config_dword(ndev->pdev, SNB_CORERRSTS_OFFSET,
- &status32);
- if (!rc)
- offset += snprintf(buf + offset, out_count - offset,
- "CORERRSTS - \t%#010x\n", status32);
- }
-
- if (offset > out_count)
- offset = out_count;
-
- ret = simple_read_from_buffer(ubuf, count, offp, buf, offset);
- kfree(buf);
- return ret;
-}
-
-static const struct file_operations ntb_debugfs_info = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = ntb_debugfs_read,
-};
-
-static void ntb_setup_debugfs(struct ntb_device *ndev)
-{
- if (!debugfs_initialized())
- return;
-
- if (!debugfs_dir)
- debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
-
- ndev->debugfs_dir = debugfs_create_dir(pci_name(ndev->pdev),
- debugfs_dir);
- if (ndev->debugfs_dir)
- ndev->debugfs_info = debugfs_create_file("info", S_IRUSR,
- ndev->debugfs_dir,
- ndev,
- &ntb_debugfs_info);
-}
-
-static void ntb_free_debugfs(struct ntb_device *ndev)
-{
- debugfs_remove_recursive(ndev->debugfs_dir);
-
- if (debugfs_dir && simple_empty(debugfs_dir)) {
- debugfs_remove_recursive(debugfs_dir);
- debugfs_dir = NULL;
- }
-}
-
-static void ntb_hw_link_up(struct ntb_device *ndev)
-{
- if (ndev->conn_type == NTB_CONN_TRANSPARENT)
- ntb_link_event(ndev, NTB_LINK_UP);
- else {
- u32 ntb_cntl;
-
- /* Let's bring the NTB link up */
- ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
- ntb_cntl &= ~(NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK);
- ntb_cntl |= NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP;
- ntb_cntl |= NTB_CNTL_P2S_BAR4_SNOOP | NTB_CNTL_S2P_BAR4_SNOOP;
- if (ndev->split_bar)
- ntb_cntl |= NTB_CNTL_P2S_BAR5_SNOOP |
- NTB_CNTL_S2P_BAR5_SNOOP;
-
- writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
- }
-}
-
-static void ntb_hw_link_down(struct ntb_device *ndev)
-{
- u32 ntb_cntl;
-
- if (ndev->conn_type == NTB_CONN_TRANSPARENT) {
- ntb_link_event(ndev, NTB_LINK_DOWN);
- return;
- }
-
- /* Bring NTB link down */
- ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
- ntb_cntl &= ~(NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP);
- ntb_cntl &= ~(NTB_CNTL_P2S_BAR4_SNOOP | NTB_CNTL_S2P_BAR4_SNOOP);
- if (ndev->split_bar)
- ntb_cntl &= ~(NTB_CNTL_P2S_BAR5_SNOOP |
- NTB_CNTL_S2P_BAR5_SNOOP);
- ntb_cntl |= NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK;
- writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
-}
-
-static void ntb_max_mw_detect(struct ntb_device *ndev)
-{
- if (ndev->split_bar)
- ndev->limits.max_mw = HSX_SPLITBAR_MAX_MW;
- else
- ndev->limits.max_mw = SNB_MAX_MW;
-}
-
-static int ntb_xeon_detect(struct ntb_device *ndev)
-{
- int rc, bars_mask;
- u32 bars;
- u8 ppd;
-
- ndev->hw_type = SNB_HW;
-
- rc = pci_read_config_byte(ndev->pdev, NTB_PPD_OFFSET, &ppd);
- if (rc)
- return -EIO;
-
- if (ppd & SNB_PPD_DEV_TYPE)
- ndev->dev_type = NTB_DEV_USD;
- else
- ndev->dev_type = NTB_DEV_DSD;
-
- ndev->split_bar = (ppd & SNB_PPD_SPLIT_BAR) ? 1 : 0;
-
- switch (ppd & SNB_PPD_CONN_TYPE) {
- case NTB_CONN_B2B:
- dev_info(&ndev->pdev->dev, "Conn Type = B2B\n");
- ndev->conn_type = NTB_CONN_B2B;
- break;
- case NTB_CONN_RP:
- dev_info(&ndev->pdev->dev, "Conn Type = RP\n");
- ndev->conn_type = NTB_CONN_RP;
- break;
- case NTB_CONN_TRANSPARENT:
- dev_info(&ndev->pdev->dev, "Conn Type = TRANSPARENT\n");
- ndev->conn_type = NTB_CONN_TRANSPARENT;
- /*
- * This mode is default to USD/DSP. HW does not report
- * properly in transparent mode as it has no knowledge of
- * NTB. We will just force correct here.
- */
- ndev->dev_type = NTB_DEV_USD;
-
- /*
- * This is a way for transparent BAR to figure out if we
- * are doing split BAR or not. There is no way for the hw
- * on the transparent side to know and set the PPD.
- */
- bars_mask = pci_select_bars(ndev->pdev, IORESOURCE_MEM);
- bars = hweight32(bars_mask);
- if (bars == (HSX_SPLITBAR_MAX_MW + 1))
- ndev->split_bar = 1;
-
- break;
- default:
- dev_err(&ndev->pdev->dev, "Unknown PPD %x\n", ppd);
- return -ENODEV;
- }
-
- ntb_max_mw_detect(ndev);
-
- return 0;
-}
-
-static int ntb_atom_detect(struct ntb_device *ndev)
-{
- int rc;
- u32 ppd;
-
- ndev->hw_type = BWD_HW;
- ndev->limits.max_mw = BWD_MAX_MW;
-
- rc = pci_read_config_dword(ndev->pdev, NTB_PPD_OFFSET, &ppd);
- if (rc)
- return rc;
-
- switch ((ppd & BWD_PPD_CONN_TYPE) >> 8) {
- case NTB_CONN_B2B:
- dev_info(&ndev->pdev->dev, "Conn Type = B2B\n");
- ndev->conn_type = NTB_CONN_B2B;
- break;
- case NTB_CONN_RP:
- default:
- dev_err(&ndev->pdev->dev, "Unsupported NTB configuration\n");
- return -EINVAL;
- }
-
- if (ppd & BWD_PPD_DEV_TYPE)
- ndev->dev_type = NTB_DEV_DSD;
- else
- ndev->dev_type = NTB_DEV_USD;
-
- return 0;
-}
-
-static int ntb_device_detect(struct ntb_device *ndev)
-{
- int rc;
-
- if (is_ntb_xeon(ndev))
- rc = ntb_xeon_detect(ndev);
- else if (is_ntb_atom(ndev))
- rc = ntb_atom_detect(ndev);
- else
- rc = -ENODEV;
-
- dev_info(&ndev->pdev->dev, "Device Type = %s\n",
- ndev->dev_type == NTB_DEV_USD ? "USD/DSP" : "DSD/USP");
-
- return 0;
-}
-
-static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct ntb_device *ndev;
- int rc, i;
-
- ndev = kzalloc(sizeof(struct ntb_device), GFP_KERNEL);
- if (!ndev)
- return -ENOMEM;
-
- ndev->pdev = pdev;
-
- ntb_set_errata_flags(ndev);
-
- ndev->link_status = NTB_LINK_DOWN;
- pci_set_drvdata(pdev, ndev);
- ntb_setup_debugfs(ndev);
-
- rc = pci_enable_device(pdev);
- if (rc)
- goto err;
-
- pci_set_master(ndev->pdev);
-
- rc = ntb_device_detect(ndev);
- if (rc)
- goto err;
-
- ndev->mw = kcalloc(ndev->limits.max_mw, sizeof(struct ntb_mw),
- GFP_KERNEL);
- if (!ndev->mw) {
- rc = -ENOMEM;
- goto err1;
- }
-
- if (ndev->split_bar)
- rc = pci_request_selected_regions(pdev, NTB_SPLITBAR_MASK,
- KBUILD_MODNAME);
- else
- rc = pci_request_selected_regions(pdev, NTB_BAR_MASK,
- KBUILD_MODNAME);
-
- if (rc)
- goto err2;
-
- ndev->reg_base = pci_ioremap_bar(pdev, NTB_BAR_MMIO);
- if (!ndev->reg_base) {
- dev_warn(&pdev->dev, "Cannot remap BAR 0\n");
- rc = -EIO;
- goto err3;
- }
-
- for (i = 0; i < ndev->limits.max_mw; i++) {
- ndev->mw[i].bar_sz = pci_resource_len(pdev, MW_TO_BAR(i));
-
- /*
- * with the errata we need to steal last of the memory
- * windows for workarounds and they point to MMIO registers.
- */
- if ((ndev->wa_flags & WA_SNB_ERR) &&
- (i == (ndev->limits.max_mw - 1))) {
- ndev->mw[i].vbase =
- ioremap_nocache(pci_resource_start(pdev,
- MW_TO_BAR(i)),
- ndev->mw[i].bar_sz);
- } else {
- ndev->mw[i].vbase =
- ioremap_wc(pci_resource_start(pdev,
- MW_TO_BAR(i)),
- ndev->mw[i].bar_sz);
- }
-
- dev_info(&pdev->dev, "MW %d size %llu\n", i,
- (unsigned long long) ndev->mw[i].bar_sz);
- if (!ndev->mw[i].vbase) {
- dev_warn(&pdev->dev, "Cannot remap BAR %d\n",
- MW_TO_BAR(i));
- rc = -EIO;
- goto err4;
- }
- }
-
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
- if (rc) {
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc)
- goto err4;
-
- dev_warn(&pdev->dev, "Cannot DMA highmem\n");
- }
-
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (rc) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc)
- goto err4;
-
- dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
- }
-
- rc = ntb_device_setup(ndev);
- if (rc)
- goto err4;
-
- rc = ntb_create_callbacks(ndev);
- if (rc)
- goto err5;
-
- rc = ntb_setup_interrupts(ndev);
- if (rc)
- goto err6;
-
- /* The scratchpad registers keep the values between rmmod/insmod,
- * blast them now
- */
- for (i = 0; i < ndev->limits.max_spads; i++) {
- ntb_write_local_spad(ndev, i, 0);
- ntb_write_remote_spad(ndev, i, 0);
- }
-
- rc = ntb_transport_init(pdev);
- if (rc)
- goto err7;
-
- ntb_hw_link_up(ndev);
-
- return 0;
-
-err7:
- ntb_free_interrupts(ndev);
-err6:
- ntb_free_callbacks(ndev);
-err5:
- ntb_device_free(ndev);
-err4:
- for (i--; i >= 0; i--)
- iounmap(ndev->mw[i].vbase);
- iounmap(ndev->reg_base);
-err3:
- if (ndev->split_bar)
- pci_release_selected_regions(pdev, NTB_SPLITBAR_MASK);
- else
- pci_release_selected_regions(pdev, NTB_BAR_MASK);
-err2:
- kfree(ndev->mw);
-err1:
- pci_disable_device(pdev);
-err:
- ntb_free_debugfs(ndev);
- kfree(ndev);
-
- dev_err(&pdev->dev, "Error loading %s module\n", KBUILD_MODNAME);
- return rc;
-}
-
-static void ntb_pci_remove(struct pci_dev *pdev)
-{
- struct ntb_device *ndev = pci_get_drvdata(pdev);
- int i;
-
- ntb_hw_link_down(ndev);
-
- ntb_transport_free(ndev->ntb_transport);
-
- ntb_free_interrupts(ndev);
- ntb_free_callbacks(ndev);
- ntb_device_free(ndev);
-
- /* need to reset max_mw limits so we can unmap properly */
- if (ndev->hw_type == SNB_HW)
- ntb_max_mw_detect(ndev);
-
- for (i = 0; i < ndev->limits.max_mw; i++)
- iounmap(ndev->mw[i].vbase);
-
- kfree(ndev->mw);
- iounmap(ndev->reg_base);
- if (ndev->split_bar)
- pci_release_selected_regions(pdev, NTB_SPLITBAR_MASK);
- else
- pci_release_selected_regions(pdev, NTB_BAR_MASK);
- pci_disable_device(pdev);
- ntb_free_debugfs(ndev);
- kfree(ndev);
-}
-
-static struct pci_driver ntb_pci_driver = {
- .name = KBUILD_MODNAME,
- .id_table = ntb_pci_tbl,
- .probe = ntb_pci_probe,
- .remove = ntb_pci_remove,
-};
-
-module_pci_driver(ntb_pci_driver);
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h
deleted file mode 100644
index 96de5fc..0000000
--- a/drivers/ntb/ntb_hw.h
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * BSD LICENSE
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copy
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Intel PCIe NTB Linux driver
- *
- * Contact Information:
- * Jon Mason <jon.mason@intel.com>
- */
-#include <linux/ntb.h>
-
-#define PCI_DEVICE_ID_INTEL_NTB_B2B_JSF 0x3725
-#define PCI_DEVICE_ID_INTEL_NTB_PS_JSF 0x3726
-#define PCI_DEVICE_ID_INTEL_NTB_SS_JSF 0x3727
-#define PCI_DEVICE_ID_INTEL_NTB_B2B_SNB 0x3C0D
-#define PCI_DEVICE_ID_INTEL_NTB_PS_SNB 0x3C0E
-#define PCI_DEVICE_ID_INTEL_NTB_SS_SNB 0x3C0F
-#define PCI_DEVICE_ID_INTEL_NTB_B2B_IVT 0x0E0D
-#define PCI_DEVICE_ID_INTEL_NTB_PS_IVT 0x0E0E
-#define PCI_DEVICE_ID_INTEL_NTB_SS_IVT 0x0E0F
-#define PCI_DEVICE_ID_INTEL_NTB_B2B_HSX 0x2F0D
-#define PCI_DEVICE_ID_INTEL_NTB_PS_HSX 0x2F0E
-#define PCI_DEVICE_ID_INTEL_NTB_SS_HSX 0x2F0F
-#define PCI_DEVICE_ID_INTEL_NTB_B2B_BWD 0x0C4E
-
-#ifndef readq
-static inline u64 readq(void __iomem *addr)
-{
- return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
-}
-#endif
-
-#ifndef writeq
-static inline void writeq(u64 val, void __iomem *addr)
-{
- writel(val & 0xffffffff, addr);
- writel(val >> 32, addr + 4);
-}
-#endif
-
-#define NTB_BAR_MMIO 0
-#define NTB_BAR_23 2
-#define NTB_BAR_4 4
-#define NTB_BAR_5 5
-
-#define NTB_BAR_MASK ((1 << NTB_BAR_MMIO) | (1 << NTB_BAR_23) |\
- (1 << NTB_BAR_4))
-#define NTB_SPLITBAR_MASK ((1 << NTB_BAR_MMIO) | (1 << NTB_BAR_23) |\
- (1 << NTB_BAR_4) | (1 << NTB_BAR_5))
-
-#define NTB_HB_TIMEOUT msecs_to_jiffies(1000)
-
-enum ntb_hw_event {
- NTB_EVENT_SW_EVENT0 = 0,
- NTB_EVENT_SW_EVENT1,
- NTB_EVENT_SW_EVENT2,
- NTB_EVENT_HW_ERROR,
- NTB_EVENT_HW_LINK_UP,
- NTB_EVENT_HW_LINK_DOWN,
-};
-
-struct ntb_mw {
- dma_addr_t phys_addr;
- void __iomem *vbase;
- resource_size_t bar_sz;
-};
-
-struct ntb_db_cb {
- int (*callback)(void *data, int db_num);
- unsigned int db_num;
- void *data;
- struct ntb_device *ndev;
- struct tasklet_struct irq_work;
-};
-
-#define WA_SNB_ERR 0x00000001
-
-struct ntb_device {
- struct pci_dev *pdev;
- struct msix_entry *msix_entries;
- void __iomem *reg_base;
- struct ntb_mw *mw;
- struct {
- unsigned char max_mw;
- unsigned char max_spads;
- unsigned char max_db_bits;
- unsigned char msix_cnt;
- } limits;
- struct {
- void __iomem *ldb;
- void __iomem *ldb_mask;
- void __iomem *rdb;
- void __iomem *bar2_xlat;
- void __iomem *bar4_xlat;
- void __iomem *bar5_xlat;
- void __iomem *spad_write;
- void __iomem *spad_read;
- void __iomem *lnk_cntl;
- void __iomem *lnk_stat;
- void __iomem *spci_cmd;
- } reg_ofs;
- struct ntb_transport *ntb_transport;
- void (*event_cb)(void *handle, enum ntb_hw_event event);
-
- struct ntb_db_cb *db_cb;
- unsigned char hw_type;
- unsigned char conn_type;
- unsigned char dev_type;
- unsigned char num_msix;
- unsigned char bits_per_vector;
- unsigned char max_cbs;
- unsigned char link_width;
- unsigned char link_speed;
- unsigned char link_status;
- unsigned char split_bar;
-
- struct delayed_work hb_timer;
- unsigned long last_ts;
-
- struct delayed_work lr_timer;
-
- struct dentry *debugfs_dir;
- struct dentry *debugfs_info;
-
- unsigned int wa_flags;
-};
-
-/**
- * ntb_max_cbs() - return the max callbacks
- * @ndev: pointer to ntb_device instance
- *
- * Given the ntb pointer, return the maximum number of callbacks
- *
- * RETURNS: the maximum number of callbacks
- */
-static inline unsigned char ntb_max_cbs(struct ntb_device *ndev)
-{
- return ndev->max_cbs;
-}
-
-/**
- * ntb_max_mw() - return the max number of memory windows
- * @ndev: pointer to ntb_device instance
- *
- * Given the ntb pointer, return the maximum number of memory windows
- *
- * RETURNS: the maximum number of memory windows
- */
-static inline unsigned char ntb_max_mw(struct ntb_device *ndev)
-{
- return ndev->limits.max_mw;
-}
-
-/**
- * ntb_hw_link_status() - return the hardware link status
- * @ndev: pointer to ntb_device instance
- *
- * Returns true if the hardware is connected to the remote system
- *
- * RETURNS: true or false based on the hardware link state
- */
-static inline bool ntb_hw_link_status(struct ntb_device *ndev)
-{
- return ndev->link_status == NTB_LINK_UP;
-}
-
-/**
- * ntb_query_pdev() - return the pci_dev pointer
- * @ndev: pointer to ntb_device instance
- *
- * Given the ntb pointer, return the pci_dev pointer for the NTB hardware device
- *
- * RETURNS: a pointer to the ntb pci_dev
- */
-static inline struct pci_dev *ntb_query_pdev(struct ntb_device *ndev)
-{
- return ndev->pdev;
-}
-
-/**
- * ntb_query_debugfs() - return the debugfs pointer
- * @ndev: pointer to ntb_device instance
- *
- * Given the ntb pointer, return the debugfs directory pointer for the NTB
- * hardware device
- *
- * RETURNS: a pointer to the debugfs directory
- */
-static inline struct dentry *ntb_query_debugfs(struct ntb_device *ndev)
-{
- return ndev->debugfs_dir;
-}
-
-struct ntb_device *ntb_register_transport(struct pci_dev *pdev,
- void *transport);
-void ntb_unregister_transport(struct ntb_device *ndev);
-void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr);
-int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
- void *data, int (*db_cb_func)(void *data,
- int db_num));
-void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx);
-int ntb_register_event_callback(struct ntb_device *ndev,
- void (*event_cb_func)(void *handle,
- enum ntb_hw_event event));
-void ntb_unregister_event_callback(struct ntb_device *ndev);
-int ntb_get_max_spads(struct ntb_device *ndev);
-int ntb_write_local_spad(struct ntb_device *ndev, unsigned int idx, u32 val);
-int ntb_read_local_spad(struct ntb_device *ndev, unsigned int idx, u32 *val);
-int ntb_write_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 val);
-int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val);
-resource_size_t ntb_get_mw_base(struct ntb_device *ndev, unsigned int mw);
-void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw);
-u64 ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw);
-void ntb_ring_doorbell(struct ntb_device *ndev, unsigned int idx);
-void *ntb_find_transport(struct pci_dev *pdev);
-
-int ntb_transport_init(struct pci_dev *pdev);
-void ntb_transport_free(void *transport);
diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h
deleted file mode 100644
index f028ff8..0000000
--- a/drivers/ntb/ntb_regs.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * BSD LICENSE
- *
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copy
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Intel PCIe NTB Linux driver
- *
- * Contact Information:
- * Jon Mason <jon.mason@intel.com>
- */
-
-#define NTB_LINK_STATUS_ACTIVE 0x2000
-#define NTB_LINK_SPEED_MASK 0x000f
-#define NTB_LINK_WIDTH_MASK 0x03f0
-
-#define SNB_MSIX_CNT 4
-#define SNB_MAX_B2B_SPADS 16
-#define SNB_MAX_COMPAT_SPADS 16
-/* Reserve the uppermost bit for link interrupt */
-#define SNB_MAX_DB_BITS 15
-#define SNB_LINK_DB 15
-#define SNB_DB_BITS_PER_VEC 5
-#define HSX_SPLITBAR_MAX_MW 3
-#define SNB_MAX_MW 2
-#define SNB_ERRATA_MAX_MW 1
-
-#define SNB_DB_HW_LINK 0x8000
-
-#define SNB_UNCERRSTS_OFFSET 0x014C
-#define SNB_CORERRSTS_OFFSET 0x0158
-#define SNB_LINK_STATUS_OFFSET 0x01A2
-#define SNB_PCICMD_OFFSET 0x0504
-#define SNB_DEVCTRL_OFFSET 0x0598
-#define SNB_DEVSTS_OFFSET 0x059A
-#define SNB_SLINK_STATUS_OFFSET 0x05A2
-
-#define SNB_PBAR2LMT_OFFSET 0x0000
-#define SNB_PBAR4LMT_OFFSET 0x0008
-#define SNB_PBAR5LMT_OFFSET 0x000C
-#define SNB_PBAR2XLAT_OFFSET 0x0010
-#define SNB_PBAR4XLAT_OFFSET 0x0018
-#define SNB_PBAR5XLAT_OFFSET 0x001C
-#define SNB_SBAR2LMT_OFFSET 0x0020
-#define SNB_SBAR4LMT_OFFSET 0x0028
-#define SNB_SBAR5LMT_OFFSET 0x002C
-#define SNB_SBAR2XLAT_OFFSET 0x0030
-#define SNB_SBAR4XLAT_OFFSET 0x0038
-#define SNB_SBAR5XLAT_OFFSET 0x003C
-#define SNB_SBAR0BASE_OFFSET 0x0040
-#define SNB_SBAR2BASE_OFFSET 0x0048
-#define SNB_SBAR4BASE_OFFSET 0x0050
-#define SNB_SBAR5BASE_OFFSET 0x0054
-#define SNB_NTBCNTL_OFFSET 0x0058
-#define SNB_SBDF_OFFSET 0x005C
-#define SNB_PDOORBELL_OFFSET 0x0060
-#define SNB_PDBMSK_OFFSET 0x0062
-#define SNB_SDOORBELL_OFFSET 0x0064
-#define SNB_SDBMSK_OFFSET 0x0066
-#define SNB_USMEMMISS_OFFSET 0x0070
-#define SNB_SPAD_OFFSET 0x0080
-#define SNB_SPADSEMA4_OFFSET 0x00c0
-#define SNB_WCCNTRL_OFFSET 0x00e0
-#define SNB_B2B_SPAD_OFFSET 0x0100
-#define SNB_B2B_DOORBELL_OFFSET 0x0140
-#define SNB_B2B_XLAT_OFFSETL 0x0144
-#define SNB_B2B_XLAT_OFFSETU 0x0148
-
-/*
- * The addresses are setup so the 32bit BARs can function. Thus
- * the addresses are all in 32bit space
- */
-#define SNB_MBAR01_USD_ADDR 0x000000002100000CULL
-#define SNB_MBAR23_USD_ADDR 0x000000004100000CULL
-#define SNB_MBAR4_USD_ADDR 0x000000008100000CULL
-#define SNB_MBAR5_USD_ADDR 0x00000000A100000CULL
-#define SNB_MBAR01_DSD_ADDR 0x000000002000000CULL
-#define SNB_MBAR23_DSD_ADDR 0x000000004000000CULL
-#define SNB_MBAR4_DSD_ADDR 0x000000008000000CULL
-#define SNB_MBAR5_DSD_ADDR 0x00000000A000000CULL
-
-#define BWD_MSIX_CNT 34
-#define BWD_MAX_SPADS 16
-#define BWD_MAX_DB_BITS 34
-#define BWD_DB_BITS_PER_VEC 1
-#define BWD_MAX_MW 2
-
-#define BWD_PCICMD_OFFSET 0xb004
-#define BWD_MBAR23_OFFSET 0xb018
-#define BWD_MBAR45_OFFSET 0xb020
-#define BWD_DEVCTRL_OFFSET 0xb048
-#define BWD_LINK_STATUS_OFFSET 0xb052
-#define BWD_ERRCORSTS_OFFSET 0xb110
-
-#define BWD_SBAR2XLAT_OFFSET 0x0008
-#define BWD_SBAR4XLAT_OFFSET 0x0010
-#define BWD_PDOORBELL_OFFSET 0x0020
-#define BWD_PDBMSK_OFFSET 0x0028
-#define BWD_NTBCNTL_OFFSET 0x0060
-#define BWD_EBDF_OFFSET 0x0064
-#define BWD_SPAD_OFFSET 0x0080
-#define BWD_SPADSEMA_OFFSET 0x00c0
-#define BWD_STKYSPAD_OFFSET 0x00c4
-#define BWD_PBAR2XLAT_OFFSET 0x8008
-#define BWD_PBAR4XLAT_OFFSET 0x8010
-#define BWD_B2B_DOORBELL_OFFSET 0x8020
-#define BWD_B2B_SPAD_OFFSET 0x8080
-#define BWD_B2B_SPADSEMA_OFFSET 0x80c0
-#define BWD_B2B_STKYSPAD_OFFSET 0x80c4
-
-#define BWD_MODPHY_PCSREG4 0x1c004
-#define BWD_MODPHY_PCSREG6 0x1c006
-
-#define BWD_IP_BASE 0xC000
-#define BWD_DESKEWSTS_OFFSET (BWD_IP_BASE + 0x3024)
-#define BWD_LTSSMERRSTS0_OFFSET (BWD_IP_BASE + 0x3180)
-#define BWD_LTSSMSTATEJMP_OFFSET (BWD_IP_BASE + 0x3040)
-#define BWD_IBSTERRRCRVSTS0_OFFSET (BWD_IP_BASE + 0x3324)
-
-#define BWD_DESKEWSTS_DBERR (1 << 15)
-#define BWD_LTSSMERRSTS0_UNEXPECTEDEI (1 << 20)
-#define BWD_LTSSMSTATEJMP_FORCEDETECT (1 << 2)
-#define BWD_IBIST_ERR_OFLOW 0x7FFF7FFF
-
-#define NTB_CNTL_CFG_LOCK (1 << 0)
-#define NTB_CNTL_LINK_DISABLE (1 << 1)
-#define NTB_CNTL_S2P_BAR23_SNOOP (1 << 2)
-#define NTB_CNTL_P2S_BAR23_SNOOP (1 << 4)
-#define NTB_CNTL_S2P_BAR4_SNOOP (1 << 6)
-#define NTB_CNTL_P2S_BAR4_SNOOP (1 << 8)
-#define NTB_CNTL_S2P_BAR5_SNOOP (1 << 12)
-#define NTB_CNTL_P2S_BAR5_SNOOP (1 << 14)
-#define BWD_CNTL_LINK_DOWN (1 << 16)
-
-#define NTB_PPD_OFFSET 0x00D4
-#define SNB_PPD_CONN_TYPE 0x0003
-#define SNB_PPD_DEV_TYPE 0x0010
-#define SNB_PPD_SPLIT_BAR (1 << 6)
-#define BWD_PPD_INIT_LINK 0x0008
-#define BWD_PPD_CONN_TYPE 0x0300
-#define BWD_PPD_DEV_TYPE 0x1000
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index e9bf2f4..efe3ad4 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -5,6 +5,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -13,6 +14,7 @@
* BSD LICENSE
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -40,7 +42,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Intel PCIe NTB Linux driver
+ * PCIe NTB Transport Linux driver
*
* Contact Information:
* Jon Mason <jon.mason@intel.com>
@@ -56,11 +58,25 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include "ntb_hw.h"
+#include <linux/uaccess.h>
+#include "linux/ntb.h"
+#include "linux/ntb_transport.h"
-#define NTB_TRANSPORT_VERSION 3
+#define NTB_TRANSPORT_VERSION 4
+#define NTB_TRANSPORT_VER "4"
+#define NTB_TRANSPORT_NAME "ntb_transport"
+#define NTB_TRANSPORT_DESC "Software Queue-Pair Transport over NTB"
-static unsigned int transport_mtu = 0x401E;
+MODULE_DESCRIPTION(NTB_TRANSPORT_DESC);
+MODULE_VERSION(NTB_TRANSPORT_VER);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Intel Corporation");
+
+static unsigned long max_mw_size;
+module_param(max_mw_size, ulong, 0644);
+MODULE_PARM_DESC(max_mw_size, "Limit size of large memory windows");
+
+static unsigned int transport_mtu = 0x10000;
module_param(transport_mtu, uint, 0644);
MODULE_PARM_DESC(transport_mtu, "Maximum size of NTB transport packets");
@@ -72,10 +88,16 @@
module_param(copy_bytes, uint, 0644);
MODULE_PARM_DESC(copy_bytes, "Threshold under which NTB will use the CPU to copy instead of DMA");
+static bool use_dma;
+module_param(use_dma, bool, 0644);
+MODULE_PARM_DESC(use_dma, "Use DMA engine to perform large data copy");
+
+static struct dentry *nt_debugfs_dir;
+
struct ntb_queue_entry {
/* ntb_queue list reference */
struct list_head entry;
- /* pointers to data to be transfered */
+ /* pointers to data to be transferred */
void *cb_data;
void *buf;
unsigned int len;
@@ -94,14 +116,16 @@
};
struct ntb_transport_qp {
- struct ntb_transport *transport;
- struct ntb_device *ndev;
+ struct ntb_transport_ctx *transport;
+ struct ntb_dev *ndev;
void *cb_data;
struct dma_chan *dma_chan;
bool client_ready;
- bool qp_link;
+ bool link_is_up;
+
u8 qp_num; /* Only 64 QP's are allowed. 0-63 */
+ u64 qp_bit;
struct ntb_rx_info __iomem *rx_info;
struct ntb_rx_info *remote_rx_info;
@@ -127,6 +151,7 @@
unsigned int rx_max_entry;
unsigned int rx_max_frame;
dma_cookie_t last_cookie;
+ struct tasklet_struct rxc_db_work;
void (*event_handler)(void *data, int status);
struct delayed_work link_work;
@@ -153,33 +178,44 @@
};
struct ntb_transport_mw {
- size_t size;
+ phys_addr_t phys_addr;
+ resource_size_t phys_size;
+ resource_size_t xlat_align;
+ resource_size_t xlat_align_size;
+ void __iomem *vbase;
+ size_t xlat_size;
+ size_t buff_size;
void *virt_addr;
dma_addr_t dma_addr;
};
struct ntb_transport_client_dev {
struct list_head entry;
+ struct ntb_transport_ctx *nt;
struct device dev;
};
-struct ntb_transport {
+struct ntb_transport_ctx {
struct list_head entry;
struct list_head client_devs;
- struct ntb_device *ndev;
- struct ntb_transport_mw *mw;
- struct ntb_transport_qp *qps;
- unsigned int max_qps;
- unsigned long qp_bitmap;
- bool transport_link;
+ struct ntb_dev *ndev;
+
+ struct ntb_transport_mw *mw_vec;
+ struct ntb_transport_qp *qp_vec;
+ unsigned int mw_count;
+ unsigned int qp_count;
+ u64 qp_bitmap;
+ u64 qp_bitmap_free;
+
+ bool link_is_up;
struct delayed_work link_work;
struct work_struct link_cleanup;
};
enum {
- DESC_DONE_FLAG = 1 << 0,
- LINK_DOWN_FLAG = 1 << 1,
+ DESC_DONE_FLAG = BIT(0),
+ LINK_DOWN_FLAG = BIT(1),
};
struct ntb_payload_header {
@@ -200,68 +236,69 @@
MAX_SPAD,
};
-#define QP_TO_MW(ndev, qp) ((qp) % ntb_max_mw(ndev))
+#define dev_client_dev(__dev) \
+ container_of((__dev), struct ntb_transport_client_dev, dev)
+
+#define drv_client(__drv) \
+ container_of((__drv), struct ntb_transport_client, driver)
+
+#define QP_TO_MW(nt, qp) ((qp) % nt->mw_count)
#define NTB_QP_DEF_NUM_ENTRIES 100
#define NTB_LINK_DOWN_TIMEOUT 10
-static int ntb_match_bus(struct device *dev, struct device_driver *drv)
+static void ntb_transport_rxc_db(unsigned long data);
+static const struct ntb_ctx_ops ntb_transport_ops;
+static struct ntb_client ntb_transport_client;
+
+static int ntb_transport_bus_match(struct device *dev,
+ struct device_driver *drv)
{
return !strncmp(dev_name(dev), drv->name, strlen(drv->name));
}
-static int ntb_client_probe(struct device *dev)
+static int ntb_transport_bus_probe(struct device *dev)
{
- const struct ntb_client *drv = container_of(dev->driver,
- struct ntb_client, driver);
- struct pci_dev *pdev = container_of(dev->parent, struct pci_dev, dev);
+ const struct ntb_transport_client *client;
int rc = -EINVAL;
get_device(dev);
- if (drv && drv->probe)
- rc = drv->probe(pdev);
+
+ client = drv_client(dev->driver);
+ rc = client->probe(dev);
if (rc)
put_device(dev);
return rc;
}
-static int ntb_client_remove(struct device *dev)
+static int ntb_transport_bus_remove(struct device *dev)
{
- const struct ntb_client *drv = container_of(dev->driver,
- struct ntb_client, driver);
- struct pci_dev *pdev = container_of(dev->parent, struct pci_dev, dev);
+ const struct ntb_transport_client *client;
- if (drv && drv->remove)
- drv->remove(pdev);
+ client = drv_client(dev->driver);
+ client->remove(dev);
put_device(dev);
return 0;
}
-static struct bus_type ntb_bus_type = {
- .name = "ntb_bus",
- .match = ntb_match_bus,
- .probe = ntb_client_probe,
- .remove = ntb_client_remove,
+static struct bus_type ntb_transport_bus = {
+ .name = "ntb_transport",
+ .match = ntb_transport_bus_match,
+ .probe = ntb_transport_bus_probe,
+ .remove = ntb_transport_bus_remove,
};
static LIST_HEAD(ntb_transport_list);
-static int ntb_bus_init(struct ntb_transport *nt)
+static int ntb_bus_init(struct ntb_transport_ctx *nt)
{
- if (list_empty(&ntb_transport_list)) {
- int rc = bus_register(&ntb_bus_type);
- if (rc)
- return rc;
- }
-
list_add(&nt->entry, &ntb_transport_list);
-
return 0;
}
-static void ntb_bus_remove(struct ntb_transport *nt)
+static void ntb_bus_remove(struct ntb_transport_ctx *nt)
{
struct ntb_transport_client_dev *client_dev, *cd;
@@ -273,29 +310,26 @@
}
list_del(&nt->entry);
-
- if (list_empty(&ntb_transport_list))
- bus_unregister(&ntb_bus_type);
}
-static void ntb_client_release(struct device *dev)
+static void ntb_transport_client_release(struct device *dev)
{
struct ntb_transport_client_dev *client_dev;
- client_dev = container_of(dev, struct ntb_transport_client_dev, dev);
+ client_dev = dev_client_dev(dev);
kfree(client_dev);
}
/**
- * ntb_unregister_client_dev - Unregister NTB client device
+ * ntb_transport_unregister_client_dev - Unregister NTB client device
* @device_name: Name of NTB client device
*
* Unregister an NTB client device with the NTB transport layer
*/
-void ntb_unregister_client_dev(char *device_name)
+void ntb_transport_unregister_client_dev(char *device_name)
{
struct ntb_transport_client_dev *client, *cd;
- struct ntb_transport *nt;
+ struct ntb_transport_ctx *nt;
list_for_each_entry(nt, &ntb_transport_list, entry)
list_for_each_entry_safe(client, cd, &nt->client_devs, entry)
@@ -305,18 +339,19 @@
device_unregister(&client->dev);
}
}
-EXPORT_SYMBOL_GPL(ntb_unregister_client_dev);
+EXPORT_SYMBOL_GPL(ntb_transport_unregister_client_dev);
/**
- * ntb_register_client_dev - Register NTB client device
+ * ntb_transport_register_client_dev - Register NTB client device
* @device_name: Name of NTB client device
*
* Register an NTB client device with the NTB transport layer
*/
-int ntb_register_client_dev(char *device_name)
+int ntb_transport_register_client_dev(char *device_name)
{
struct ntb_transport_client_dev *client_dev;
- struct ntb_transport *nt;
+ struct ntb_transport_ctx *nt;
+ int node;
int rc, i = 0;
if (list_empty(&ntb_transport_list))
@@ -325,8 +360,10 @@
list_for_each_entry(nt, &ntb_transport_list, entry) {
struct device *dev;
- client_dev = kzalloc(sizeof(struct ntb_transport_client_dev),
- GFP_KERNEL);
+ node = dev_to_node(&nt->ndev->dev);
+
+ client_dev = kzalloc_node(sizeof(*client_dev),
+ GFP_KERNEL, node);
if (!client_dev) {
rc = -ENOMEM;
goto err;
@@ -336,9 +373,9 @@
/* setup and register client devices */
dev_set_name(dev, "%s%d", device_name, i);
- dev->bus = &ntb_bus_type;
- dev->release = ntb_client_release;
- dev->parent = &ntb_query_pdev(nt->ndev)->dev;
+ dev->bus = &ntb_transport_bus;
+ dev->release = ntb_transport_client_release;
+ dev->parent = &nt->ndev->dev;
rc = device_register(dev);
if (rc) {
@@ -353,44 +390,44 @@
return 0;
err:
- ntb_unregister_client_dev(device_name);
+ ntb_transport_unregister_client_dev(device_name);
return rc;
}
-EXPORT_SYMBOL_GPL(ntb_register_client_dev);
+EXPORT_SYMBOL_GPL(ntb_transport_register_client_dev);
/**
- * ntb_register_client - Register NTB client driver
+ * ntb_transport_register_client - Register NTB client driver
* @drv: NTB client driver to be registered
*
* Register an NTB client driver with the NTB transport layer
*
* RETURNS: An appropriate -ERRNO error value on error, or zero for success.
*/
-int ntb_register_client(struct ntb_client *drv)
+int ntb_transport_register_client(struct ntb_transport_client *drv)
{
- drv->driver.bus = &ntb_bus_type;
+ drv->driver.bus = &ntb_transport_bus;
if (list_empty(&ntb_transport_list))
return -ENODEV;
return driver_register(&drv->driver);
}
-EXPORT_SYMBOL_GPL(ntb_register_client);
+EXPORT_SYMBOL_GPL(ntb_transport_register_client);
/**
- * ntb_unregister_client - Unregister NTB client driver
+ * ntb_transport_unregister_client - Unregister NTB client driver
* @drv: NTB client driver to be unregistered
*
* Unregister an NTB client driver with the NTB transport layer
*
* RETURNS: An appropriate -ERRNO error value on error, or zero for success.
*/
-void ntb_unregister_client(struct ntb_client *drv)
+void ntb_transport_unregister_client(struct ntb_transport_client *drv)
{
driver_unregister(&drv->driver);
}
-EXPORT_SYMBOL_GPL(ntb_unregister_client);
+EXPORT_SYMBOL_GPL(ntb_transport_unregister_client);
static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
loff_t *offp)
@@ -452,8 +489,8 @@
"tx_max_entry - \t%u\n", qp->tx_max_entry);
out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "\nQP Link %s\n", (qp->qp_link == NTB_LINK_UP) ?
- "Up" : "Down");
+ "\nQP Link %s\n",
+ qp->link_is_up ? "Up" : "Down");
if (out_offset > out_count)
out_offset = out_count;
@@ -497,26 +534,31 @@
return entry;
}
-static void ntb_transport_setup_qp_mw(struct ntb_transport *nt,
- unsigned int qp_num)
+static int ntb_transport_setup_qp_mw(struct ntb_transport_ctx *nt,
+ unsigned int qp_num)
{
- struct ntb_transport_qp *qp = &nt->qps[qp_num];
+ struct ntb_transport_qp *qp = &nt->qp_vec[qp_num];
+ struct ntb_transport_mw *mw;
unsigned int rx_size, num_qps_mw;
- u8 mw_num, mw_max;
+ unsigned int mw_num, mw_count, qp_count;
unsigned int i;
- mw_max = ntb_max_mw(nt->ndev);
- mw_num = QP_TO_MW(nt->ndev, qp_num);
+ mw_count = nt->mw_count;
+ qp_count = nt->qp_count;
- WARN_ON(nt->mw[mw_num].virt_addr == NULL);
+ mw_num = QP_TO_MW(nt, qp_num);
+ mw = &nt->mw_vec[mw_num];
- if (nt->max_qps % mw_max && mw_num + 1 < nt->max_qps / mw_max)
- num_qps_mw = nt->max_qps / mw_max + 1;
+ if (!mw->virt_addr)
+ return -ENOMEM;
+
+ if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+ num_qps_mw = qp_count / mw_count + 1;
else
- num_qps_mw = nt->max_qps / mw_max;
+ num_qps_mw = qp_count / mw_count;
- rx_size = (unsigned int) nt->mw[mw_num].size / num_qps_mw;
- qp->rx_buff = nt->mw[mw_num].virt_addr + qp_num / mw_max * rx_size;
+ rx_size = (unsigned int)mw->xlat_size / num_qps_mw;
+ qp->rx_buff = mw->virt_addr + rx_size * qp_num / mw_count;
rx_size -= sizeof(struct ntb_rx_info);
qp->remote_rx_info = qp->rx_buff + rx_size;
@@ -530,49 +572,63 @@
/* setup the hdr offsets with 0's */
for (i = 0; i < qp->rx_max_entry; i++) {
- void *offset = qp->rx_buff + qp->rx_max_frame * (i + 1) -
- sizeof(struct ntb_payload_header);
+ void *offset = (qp->rx_buff + qp->rx_max_frame * (i + 1) -
+ sizeof(struct ntb_payload_header));
memset(offset, 0, sizeof(struct ntb_payload_header));
}
qp->rx_pkts = 0;
qp->tx_pkts = 0;
qp->tx_index = 0;
+
+ return 0;
}
-static void ntb_free_mw(struct ntb_transport *nt, int num_mw)
+static void ntb_free_mw(struct ntb_transport_ctx *nt, int num_mw)
{
- struct ntb_transport_mw *mw = &nt->mw[num_mw];
- struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
+ struct ntb_transport_mw *mw = &nt->mw_vec[num_mw];
+ struct pci_dev *pdev = nt->ndev->pdev;
if (!mw->virt_addr)
return;
- dma_free_coherent(&pdev->dev, mw->size, mw->virt_addr, mw->dma_addr);
+ ntb_mw_clear_trans(nt->ndev, num_mw);
+ dma_free_coherent(&pdev->dev, mw->buff_size,
+ mw->virt_addr, mw->dma_addr);
+ mw->xlat_size = 0;
+ mw->buff_size = 0;
mw->virt_addr = NULL;
}
-static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size)
+static int ntb_set_mw(struct ntb_transport_ctx *nt, int num_mw,
+ unsigned int size)
{
- struct ntb_transport_mw *mw = &nt->mw[num_mw];
- struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
+ struct ntb_transport_mw *mw = &nt->mw_vec[num_mw];
+ struct pci_dev *pdev = nt->ndev->pdev;
+ unsigned int xlat_size, buff_size;
+ int rc;
+
+ xlat_size = round_up(size, mw->xlat_align_size);
+ buff_size = round_up(size, mw->xlat_align);
/* No need to re-setup */
- if (mw->size == ALIGN(size, 4096))
+ if (mw->xlat_size == xlat_size)
return 0;
- if (mw->size != 0)
+ if (mw->buff_size)
ntb_free_mw(nt, num_mw);
- /* Alloc memory for receiving data. Must be 4k aligned */
- mw->size = ALIGN(size, 4096);
+ /* Alloc memory for receiving data. Must be aligned */
+ mw->xlat_size = xlat_size;
+ mw->buff_size = buff_size;
- mw->virt_addr = dma_alloc_coherent(&pdev->dev, mw->size, &mw->dma_addr,
- GFP_KERNEL);
+ mw->virt_addr = dma_alloc_coherent(&pdev->dev, buff_size,
+ &mw->dma_addr, GFP_KERNEL);
if (!mw->virt_addr) {
- mw->size = 0;
- dev_err(&pdev->dev, "Unable to allocate MW buffer of size %d\n",
- (int) mw->size);
+ mw->xlat_size = 0;
+ mw->buff_size = 0;
+ dev_err(&pdev->dev, "Unable to alloc MW buff of size %d\n",
+ buff_size);
return -ENOMEM;
}
@@ -582,34 +638,58 @@
* is a requirement of the hardware. It is recommended to setup CMA
* for BAR sizes equal or greater than 4MB.
*/
- if (!IS_ALIGNED(mw->dma_addr, mw->size)) {
- dev_err(&pdev->dev, "DMA memory %pad not aligned to BAR size\n",
+ if (!IS_ALIGNED(mw->dma_addr, mw->xlat_align)) {
+ dev_err(&pdev->dev, "DMA memory %pad is not aligned\n",
&mw->dma_addr);
ntb_free_mw(nt, num_mw);
return -ENOMEM;
}
/* Notify HW the memory location of the receive buffer */
- ntb_set_mw_addr(nt->ndev, num_mw, mw->dma_addr);
+ rc = ntb_mw_set_trans(nt->ndev, num_mw, mw->dma_addr, mw->xlat_size);
+ if (rc) {
+ dev_err(&pdev->dev, "Unable to set mw%d translation", num_mw);
+ ntb_free_mw(nt, num_mw);
+ return -EIO;
+ }
return 0;
}
+static void ntb_qp_link_down_reset(struct ntb_transport_qp *qp)
+{
+ qp->link_is_up = false;
+
+ qp->tx_index = 0;
+ qp->rx_index = 0;
+ qp->rx_bytes = 0;
+ qp->rx_pkts = 0;
+ qp->rx_ring_empty = 0;
+ qp->rx_err_no_buf = 0;
+ qp->rx_err_oflow = 0;
+ qp->rx_err_ver = 0;
+ qp->rx_memcpy = 0;
+ qp->rx_async = 0;
+ qp->tx_bytes = 0;
+ qp->tx_pkts = 0;
+ qp->tx_ring_full = 0;
+ qp->tx_err_no_buf = 0;
+ qp->tx_memcpy = 0;
+ qp->tx_async = 0;
+}
+
static void ntb_qp_link_cleanup(struct ntb_transport_qp *qp)
{
- struct ntb_transport *nt = qp->transport;
- struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
+ struct ntb_transport_ctx *nt = qp->transport;
+ struct pci_dev *pdev = nt->ndev->pdev;
- if (qp->qp_link == NTB_LINK_DOWN) {
- cancel_delayed_work_sync(&qp->link_work);
- return;
- }
+ dev_info(&pdev->dev, "qp %d: Link Cleanup\n", qp->qp_num);
+
+ cancel_delayed_work_sync(&qp->link_work);
+ ntb_qp_link_down_reset(qp);
if (qp->event_handler)
- qp->event_handler(qp->cb_data, NTB_LINK_DOWN);
-
- dev_info(&pdev->dev, "qp %d: Link Down\n", qp->qp_num);
- qp->qp_link = NTB_LINK_DOWN;
+ qp->event_handler(qp->cb_data, qp->link_is_up);
}
static void ntb_qp_link_cleanup_work(struct work_struct *work)
@@ -617,11 +697,11 @@
struct ntb_transport_qp *qp = container_of(work,
struct ntb_transport_qp,
link_cleanup);
- struct ntb_transport *nt = qp->transport;
+ struct ntb_transport_ctx *nt = qp->transport;
ntb_qp_link_cleanup(qp);
- if (nt->transport_link == NTB_LINK_UP)
+ if (nt->link_is_up)
schedule_delayed_work(&qp->link_work,
msecs_to_jiffies(NTB_LINK_DOWN_TIMEOUT));
}
@@ -631,180 +711,132 @@
schedule_work(&qp->link_cleanup);
}
-static void ntb_transport_link_cleanup(struct ntb_transport *nt)
+static void ntb_transport_link_cleanup(struct ntb_transport_ctx *nt)
{
+ struct ntb_transport_qp *qp;
+ u64 qp_bitmap_alloc;
int i;
- /* Pass along the info to any clients */
- for (i = 0; i < nt->max_qps; i++)
- if (!test_bit(i, &nt->qp_bitmap))
- ntb_qp_link_cleanup(&nt->qps[i]);
+ qp_bitmap_alloc = nt->qp_bitmap & ~nt->qp_bitmap_free;
- if (nt->transport_link == NTB_LINK_DOWN)
+ /* Pass along the info to any clients */
+ for (i = 0; i < nt->qp_count; i++)
+ if (qp_bitmap_alloc & BIT_ULL(i)) {
+ qp = &nt->qp_vec[i];
+ ntb_qp_link_cleanup(qp);
+ cancel_work_sync(&qp->link_cleanup);
+ cancel_delayed_work_sync(&qp->link_work);
+ }
+
+ if (!nt->link_is_up)
cancel_delayed_work_sync(&nt->link_work);
- else
- nt->transport_link = NTB_LINK_DOWN;
/* The scratchpad registers keep the values if the remote side
* goes down, blast them now to give them a sane value the next
* time they are accessed
*/
for (i = 0; i < MAX_SPAD; i++)
- ntb_write_local_spad(nt->ndev, i, 0);
+ ntb_spad_write(nt->ndev, i, 0);
}
static void ntb_transport_link_cleanup_work(struct work_struct *work)
{
- struct ntb_transport *nt = container_of(work, struct ntb_transport,
- link_cleanup);
+ struct ntb_transport_ctx *nt =
+ container_of(work, struct ntb_transport_ctx, link_cleanup);
ntb_transport_link_cleanup(nt);
}
-static void ntb_transport_event_callback(void *data, enum ntb_hw_event event)
+static void ntb_transport_event_callback(void *data)
{
- struct ntb_transport *nt = data;
+ struct ntb_transport_ctx *nt = data;
- switch (event) {
- case NTB_EVENT_HW_LINK_UP:
+ if (ntb_link_is_up(nt->ndev, NULL, NULL) == 1)
schedule_delayed_work(&nt->link_work, 0);
- break;
- case NTB_EVENT_HW_LINK_DOWN:
+ else
schedule_work(&nt->link_cleanup);
- break;
- default:
- BUG();
- }
}
static void ntb_transport_link_work(struct work_struct *work)
{
- struct ntb_transport *nt = container_of(work, struct ntb_transport,
- link_work.work);
- struct ntb_device *ndev = nt->ndev;
- struct pci_dev *pdev = ntb_query_pdev(ndev);
+ struct ntb_transport_ctx *nt =
+ container_of(work, struct ntb_transport_ctx, link_work.work);
+ struct ntb_dev *ndev = nt->ndev;
+ struct pci_dev *pdev = ndev->pdev;
+ resource_size_t size;
u32 val;
- int rc, i;
+ int rc, i, spad;
/* send the local info, in the opposite order of the way we read it */
- for (i = 0; i < ntb_max_mw(ndev); i++) {
- rc = ntb_write_remote_spad(ndev, MW0_SZ_HIGH + (i * 2),
- ntb_get_mw_size(ndev, i) >> 32);
- if (rc) {
- dev_err(&pdev->dev, "Error writing %u to remote spad %d\n",
- (u32)(ntb_get_mw_size(ndev, i) >> 32),
- MW0_SZ_HIGH + (i * 2));
- goto out;
- }
+ for (i = 0; i < nt->mw_count; i++) {
+ size = nt->mw_vec[i].phys_size;
- rc = ntb_write_remote_spad(ndev, MW0_SZ_LOW + (i * 2),
- (u32) ntb_get_mw_size(ndev, i));
- if (rc) {
- dev_err(&pdev->dev, "Error writing %u to remote spad %d\n",
- (u32) ntb_get_mw_size(ndev, i),
- MW0_SZ_LOW + (i * 2));
- goto out;
- }
+ if (max_mw_size && size > max_mw_size)
+ size = max_mw_size;
+
+ spad = MW0_SZ_HIGH + (i * 2);
+ ntb_peer_spad_write(ndev, spad, (u32)(size >> 32));
+
+ spad = MW0_SZ_LOW + (i * 2);
+ ntb_peer_spad_write(ndev, spad, (u32)size);
}
- rc = ntb_write_remote_spad(ndev, NUM_MWS, ntb_max_mw(ndev));
- if (rc) {
- dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
- ntb_max_mw(ndev), NUM_MWS);
- goto out;
- }
+ ntb_peer_spad_write(ndev, NUM_MWS, nt->mw_count);
- rc = ntb_write_remote_spad(ndev, NUM_QPS, nt->max_qps);
- if (rc) {
- dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
- nt->max_qps, NUM_QPS);
- goto out;
- }
+ ntb_peer_spad_write(ndev, NUM_QPS, nt->qp_count);
- rc = ntb_write_remote_spad(ndev, VERSION, NTB_TRANSPORT_VERSION);
- if (rc) {
- dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
- NTB_TRANSPORT_VERSION, VERSION);
- goto out;
- }
+ ntb_peer_spad_write(ndev, VERSION, NTB_TRANSPORT_VERSION);
/* Query the remote side for its info */
- rc = ntb_read_remote_spad(ndev, VERSION, &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading remote spad %d\n", VERSION);
- goto out;
- }
-
+ val = ntb_spad_read(ndev, VERSION);
+ dev_dbg(&pdev->dev, "Remote version = %d\n", val);
if (val != NTB_TRANSPORT_VERSION)
goto out;
- dev_dbg(&pdev->dev, "Remote version = %d\n", val);
- rc = ntb_read_remote_spad(ndev, NUM_QPS, &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading remote spad %d\n", NUM_QPS);
- goto out;
- }
-
- if (val != nt->max_qps)
- goto out;
+ val = ntb_spad_read(ndev, NUM_QPS);
dev_dbg(&pdev->dev, "Remote max number of qps = %d\n", val);
-
- rc = ntb_read_remote_spad(ndev, NUM_MWS, &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading remote spad %d\n", NUM_MWS);
+ if (val != nt->qp_count)
goto out;
- }
- if (val != ntb_max_mw(ndev))
- goto out;
+ val = ntb_spad_read(ndev, NUM_MWS);
dev_dbg(&pdev->dev, "Remote number of mws = %d\n", val);
+ if (val != nt->mw_count)
+ goto out;
- for (i = 0; i < ntb_max_mw(ndev); i++) {
+ for (i = 0; i < nt->mw_count; i++) {
u64 val64;
- rc = ntb_read_remote_spad(ndev, MW0_SZ_HIGH + (i * 2), &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading remote spad %d\n",
- MW0_SZ_HIGH + (i * 2));
- goto out1;
- }
+ val = ntb_spad_read(ndev, MW0_SZ_HIGH + (i * 2));
+ val64 = (u64)val << 32;
- val64 = (u64) val << 32;
-
- rc = ntb_read_remote_spad(ndev, MW0_SZ_LOW + (i * 2), &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading remote spad %d\n",
- MW0_SZ_LOW + (i * 2));
- goto out1;
- }
-
+ val = ntb_spad_read(ndev, MW0_SZ_LOW + (i * 2));
val64 |= val;
- dev_dbg(&pdev->dev, "Remote MW%d size = %llu\n", i, val64);
+ dev_dbg(&pdev->dev, "Remote MW%d size = %#llx\n", i, val64);
rc = ntb_set_mw(nt, i, val64);
if (rc)
goto out1;
}
- nt->transport_link = NTB_LINK_UP;
+ nt->link_is_up = true;
- for (i = 0; i < nt->max_qps; i++) {
- struct ntb_transport_qp *qp = &nt->qps[i];
+ for (i = 0; i < nt->qp_count; i++) {
+ struct ntb_transport_qp *qp = &nt->qp_vec[i];
ntb_transport_setup_qp_mw(nt, i);
- if (qp->client_ready == NTB_LINK_UP)
+ if (qp->client_ready)
schedule_delayed_work(&qp->link_work, 0);
}
return;
out1:
- for (i = 0; i < ntb_max_mw(ndev); i++)
+ for (i = 0; i < nt->mw_count; i++)
ntb_free_mw(nt, i);
out:
- if (ntb_hw_link_status(ndev))
+ if (ntb_link_is_up(ndev, NULL, NULL) == 1)
schedule_delayed_work(&nt->link_work,
msecs_to_jiffies(NTB_LINK_DOWN_TIMEOUT));
}
@@ -814,73 +846,73 @@
struct ntb_transport_qp *qp = container_of(work,
struct ntb_transport_qp,
link_work.work);
- struct pci_dev *pdev = ntb_query_pdev(qp->ndev);
- struct ntb_transport *nt = qp->transport;
- int rc, val;
+ struct pci_dev *pdev = qp->ndev->pdev;
+ struct ntb_transport_ctx *nt = qp->transport;
+ int val;
- WARN_ON(nt->transport_link != NTB_LINK_UP);
+ WARN_ON(!nt->link_is_up);
- rc = ntb_read_local_spad(nt->ndev, QP_LINKS, &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading spad %d\n", QP_LINKS);
- return;
- }
+ val = ntb_spad_read(nt->ndev, QP_LINKS);
- rc = ntb_write_remote_spad(nt->ndev, QP_LINKS, val | 1 << qp->qp_num);
- if (rc)
- dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
- val | 1 << qp->qp_num, QP_LINKS);
+ ntb_peer_spad_write(nt->ndev, QP_LINKS, val | BIT(qp->qp_num));
/* query remote spad for qp ready bits */
- rc = ntb_read_remote_spad(nt->ndev, QP_LINKS, &val);
- if (rc)
- dev_err(&pdev->dev, "Error reading remote spad %d\n", QP_LINKS);
-
- dev_dbg(&pdev->dev, "Remote QP link status = %x\n", val);
+ ntb_peer_spad_read(nt->ndev, QP_LINKS);
+ dev_dbg_ratelimited(&pdev->dev, "Remote QP link status = %x\n", val);
/* See if the remote side is up */
- if (1 << qp->qp_num & val) {
- qp->qp_link = NTB_LINK_UP;
-
+ if (val & BIT(qp->qp_num)) {
dev_info(&pdev->dev, "qp %d: Link Up\n", qp->qp_num);
+ qp->link_is_up = true;
+
if (qp->event_handler)
- qp->event_handler(qp->cb_data, NTB_LINK_UP);
- } else if (nt->transport_link == NTB_LINK_UP)
+ qp->event_handler(qp->cb_data, qp->link_is_up);
+ } else if (nt->link_is_up)
schedule_delayed_work(&qp->link_work,
msecs_to_jiffies(NTB_LINK_DOWN_TIMEOUT));
}
-static int ntb_transport_init_queue(struct ntb_transport *nt,
+static int ntb_transport_init_queue(struct ntb_transport_ctx *nt,
unsigned int qp_num)
{
struct ntb_transport_qp *qp;
+ struct ntb_transport_mw *mw;
+ phys_addr_t mw_base;
+ resource_size_t mw_size;
unsigned int num_qps_mw, tx_size;
- u8 mw_num, mw_max;
+ unsigned int mw_num, mw_count, qp_count;
u64 qp_offset;
- mw_max = ntb_max_mw(nt->ndev);
- mw_num = QP_TO_MW(nt->ndev, qp_num);
+ mw_count = nt->mw_count;
+ qp_count = nt->qp_count;
- qp = &nt->qps[qp_num];
+ mw_num = QP_TO_MW(nt, qp_num);
+ mw = &nt->mw_vec[mw_num];
+
+ qp = &nt->qp_vec[qp_num];
qp->qp_num = qp_num;
qp->transport = nt;
qp->ndev = nt->ndev;
- qp->qp_link = NTB_LINK_DOWN;
- qp->client_ready = NTB_LINK_DOWN;
+ qp->client_ready = false;
qp->event_handler = NULL;
+ ntb_qp_link_down_reset(qp);
- if (nt->max_qps % mw_max && mw_num + 1 < nt->max_qps / mw_max)
- num_qps_mw = nt->max_qps / mw_max + 1;
+ if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+ num_qps_mw = qp_count / mw_count + 1;
else
- num_qps_mw = nt->max_qps / mw_max;
+ num_qps_mw = qp_count / mw_count;
- tx_size = (unsigned int) ntb_get_mw_size(qp->ndev, mw_num) / num_qps_mw;
- qp_offset = qp_num / mw_max * tx_size;
- qp->tx_mw = ntb_get_mw_vbase(nt->ndev, mw_num) + qp_offset;
+ mw_base = nt->mw_vec[mw_num].phys_addr;
+ mw_size = nt->mw_vec[mw_num].phys_size;
+
+ tx_size = (unsigned int)mw_size / num_qps_mw;
+ qp_offset = tx_size * qp_num / mw_count;
+
+ qp->tx_mw = nt->mw_vec[mw_num].vbase + qp_offset;
if (!qp->tx_mw)
return -EINVAL;
- qp->tx_mw_phys = ntb_get_mw_base(qp->ndev, mw_num) + qp_offset;
+ qp->tx_mw_phys = mw_base + qp_offset;
if (!qp->tx_mw_phys)
return -EINVAL;
@@ -891,16 +923,19 @@
qp->tx_max_frame = min(transport_mtu, tx_size / 2);
qp->tx_max_entry = tx_size / qp->tx_max_frame;
- if (ntb_query_debugfs(nt->ndev)) {
+ if (nt_debugfs_dir) {
char debugfs_name[4];
snprintf(debugfs_name, 4, "qp%d", qp_num);
qp->debugfs_dir = debugfs_create_dir(debugfs_name,
- ntb_query_debugfs(nt->ndev));
+ nt_debugfs_dir);
qp->debugfs_stats = debugfs_create_file("stats", S_IRUSR,
qp->debugfs_dir, qp,
&ntb_qp_debugfs_stats);
+ } else {
+ qp->debugfs_dir = NULL;
+ qp->debugfs_stats = NULL;
}
INIT_DELAYED_WORK(&qp->link_work, ntb_qp_link_work);
@@ -914,46 +949,89 @@
INIT_LIST_HEAD(&qp->rx_free_q);
INIT_LIST_HEAD(&qp->tx_free_q);
+ tasklet_init(&qp->rxc_db_work, ntb_transport_rxc_db,
+ (unsigned long)qp);
+
return 0;
}
-int ntb_transport_init(struct pci_dev *pdev)
+static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev)
{
- struct ntb_transport *nt;
+ struct ntb_transport_ctx *nt;
+ struct ntb_transport_mw *mw;
+ unsigned int mw_count, qp_count;
+ u64 qp_bitmap;
+ int node;
int rc, i;
- nt = kzalloc(sizeof(struct ntb_transport), GFP_KERNEL);
+ if (ntb_db_is_unsafe(ndev))
+ dev_dbg(&ndev->dev,
+ "doorbell is unsafe, proceed anyway...\n");
+ if (ntb_spad_is_unsafe(ndev))
+ dev_dbg(&ndev->dev,
+ "scratchpad is unsafe, proceed anyway...\n");
+
+ node = dev_to_node(&ndev->dev);
+
+ nt = kzalloc_node(sizeof(*nt), GFP_KERNEL, node);
if (!nt)
return -ENOMEM;
- nt->ndev = ntb_register_transport(pdev, nt);
- if (!nt->ndev) {
- rc = -EIO;
+ nt->ndev = ndev;
+
+ mw_count = ntb_mw_count(ndev);
+
+ nt->mw_count = mw_count;
+
+ nt->mw_vec = kzalloc_node(mw_count * sizeof(*nt->mw_vec),
+ GFP_KERNEL, node);
+ if (!nt->mw_vec) {
+ rc = -ENOMEM;
goto err;
}
- nt->mw = kcalloc(ntb_max_mw(nt->ndev), sizeof(struct ntb_transport_mw),
- GFP_KERNEL);
- if (!nt->mw) {
- rc = -ENOMEM;
- goto err1;
+ for (i = 0; i < mw_count; i++) {
+ mw = &nt->mw_vec[i];
+
+ rc = ntb_mw_get_range(ndev, i, &mw->phys_addr, &mw->phys_size,
+ &mw->xlat_align, &mw->xlat_align_size);
+ if (rc)
+ goto err1;
+
+ mw->vbase = ioremap_wc(mw->phys_addr, mw->phys_size);
+ if (!mw->vbase) {
+ rc = -ENOMEM;
+ goto err1;
+ }
+
+ mw->buff_size = 0;
+ mw->xlat_size = 0;
+ mw->virt_addr = NULL;
+ mw->dma_addr = 0;
}
- if (max_num_clients)
- nt->max_qps = min(ntb_max_cbs(nt->ndev), max_num_clients);
- else
- nt->max_qps = min(ntb_max_cbs(nt->ndev), ntb_max_mw(nt->ndev));
+ qp_bitmap = ntb_db_valid_mask(ndev);
- nt->qps = kcalloc(nt->max_qps, sizeof(struct ntb_transport_qp),
- GFP_KERNEL);
- if (!nt->qps) {
+ qp_count = ilog2(qp_bitmap);
+ if (max_num_clients && max_num_clients < qp_count)
+ qp_count = max_num_clients;
+ else if (mw_count < qp_count)
+ qp_count = mw_count;
+
+ qp_bitmap &= BIT_ULL(qp_count) - 1;
+
+ nt->qp_count = qp_count;
+ nt->qp_bitmap = qp_bitmap;
+ nt->qp_bitmap_free = qp_bitmap;
+
+ nt->qp_vec = kzalloc_node(qp_count * sizeof(*nt->qp_vec),
+ GFP_KERNEL, node);
+ if (!nt->qp_vec) {
rc = -ENOMEM;
goto err2;
}
- nt->qp_bitmap = ((u64) 1 << nt->max_qps) - 1;
-
- for (i = 0; i < nt->max_qps; i++) {
+ for (i = 0; i < qp_count; i++) {
rc = ntb_transport_init_queue(nt, i);
if (rc)
goto err3;
@@ -962,8 +1040,7 @@
INIT_DELAYED_WORK(&nt->link_work, ntb_transport_link_work);
INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup_work);
- rc = ntb_register_event_callback(nt->ndev,
- ntb_transport_event_callback);
+ rc = ntb_set_ctx(ndev, nt, &ntb_transport_ops);
if (rc)
goto err3;
@@ -972,51 +1049,61 @@
if (rc)
goto err4;
- if (ntb_hw_link_status(nt->ndev))
- schedule_delayed_work(&nt->link_work, 0);
+ nt->link_is_up = false;
+ ntb_link_enable(ndev, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);
+ ntb_link_event(ndev);
return 0;
err4:
- ntb_unregister_event_callback(nt->ndev);
+ ntb_clear_ctx(ndev);
err3:
- kfree(nt->qps);
+ kfree(nt->qp_vec);
err2:
- kfree(nt->mw);
+ kfree(nt->mw_vec);
err1:
- ntb_unregister_transport(nt->ndev);
+ while (i--) {
+ mw = &nt->mw_vec[i];
+ iounmap(mw->vbase);
+ }
err:
kfree(nt);
return rc;
}
-void ntb_transport_free(void *transport)
+static void ntb_transport_free(struct ntb_client *self, struct ntb_dev *ndev)
{
- struct ntb_transport *nt = transport;
- struct ntb_device *ndev = nt->ndev;
+ struct ntb_transport_ctx *nt = ndev->ctx;
+ struct ntb_transport_qp *qp;
+ u64 qp_bitmap_alloc;
int i;
ntb_transport_link_cleanup(nt);
+ cancel_work_sync(&nt->link_cleanup);
+ cancel_delayed_work_sync(&nt->link_work);
+
+ qp_bitmap_alloc = nt->qp_bitmap & ~nt->qp_bitmap_free;
/* verify that all the qp's are freed */
- for (i = 0; i < nt->max_qps; i++) {
- if (!test_bit(i, &nt->qp_bitmap))
- ntb_transport_free_queue(&nt->qps[i]);
- debugfs_remove_recursive(nt->qps[i].debugfs_dir);
+ for (i = 0; i < nt->qp_count; i++) {
+ qp = &nt->qp_vec[i];
+ if (qp_bitmap_alloc & BIT_ULL(i))
+ ntb_transport_free_queue(qp);
+ debugfs_remove_recursive(qp->debugfs_dir);
}
+ ntb_link_disable(ndev);
+ ntb_clear_ctx(ndev);
+
ntb_bus_remove(nt);
- cancel_delayed_work_sync(&nt->link_work);
-
- ntb_unregister_event_callback(ndev);
-
- for (i = 0; i < ntb_max_mw(ndev); i++)
+ for (i = nt->mw_count; i--; ) {
ntb_free_mw(nt, i);
+ iounmap(nt->mw_vec[i].vbase);
+ }
- kfree(nt->qps);
- kfree(nt->mw);
- ntb_unregister_transport(ndev);
+ kfree(nt->qp_vec);
+ kfree(nt->mw_vec);
kfree(nt);
}
@@ -1028,15 +1115,13 @@
unsigned int len = entry->len;
struct ntb_payload_header *hdr = entry->rx_hdr;
- /* Ensure that the data is fully copied out before clearing the flag */
- wmb();
hdr->flags = 0;
iowrite32(entry->index, &qp->rx_info->entry);
ntb_list_add(&qp->ntb_rx_free_q_lock, &entry->entry, &qp->rx_free_q);
- if (qp->rx_handler && qp->client_ready == NTB_LINK_UP)
+ if (qp->rx_handler && qp->client_ready)
qp->rx_handler(qp, qp->cb_data, cb_data, len);
}
@@ -1047,6 +1132,9 @@
memcpy(buf, offset, len);
+ /* Ensure that the data is fully copied out before clearing the flag */
+ wmb();
+
ntb_rx_copy_callback(entry);
}
@@ -1071,8 +1159,8 @@
goto err_wait;
device = chan->device;
- pay_off = (size_t) offset & ~PAGE_MASK;
- buff_off = (size_t) buf & ~PAGE_MASK;
+ pay_off = (size_t)offset & ~PAGE_MASK;
+ buff_off = (size_t)buf & ~PAGE_MASK;
if (!is_dma_copy_aligned(device, pay_off, buff_off, len))
goto err_wait;
@@ -1138,86 +1226,103 @@
struct ntb_payload_header *hdr;
struct ntb_queue_entry *entry;
void *offset;
+ int rc;
offset = qp->rx_buff + qp->rx_max_frame * qp->rx_index;
hdr = offset + qp->rx_max_frame - sizeof(struct ntb_payload_header);
- entry = ntb_list_rm(&qp->ntb_rx_pend_q_lock, &qp->rx_pend_q);
- if (!entry) {
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev,
- "no buffer - HDR ver %u, len %d, flags %x\n",
- hdr->ver, hdr->len, hdr->flags);
- qp->rx_err_no_buf++;
- return -ENOMEM;
- }
+ dev_dbg(&qp->ndev->pdev->dev, "qp %d: RX ver %u len %d flags %x\n",
+ qp->qp_num, hdr->ver, hdr->len, hdr->flags);
if (!(hdr->flags & DESC_DONE_FLAG)) {
- ntb_list_add(&qp->ntb_rx_pend_q_lock, &entry->entry,
- &qp->rx_pend_q);
+ dev_dbg(&qp->ndev->pdev->dev, "done flag not set\n");
qp->rx_ring_empty++;
return -EAGAIN;
}
- if (hdr->ver != (u32) qp->rx_pkts) {
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev,
- "qp %d: version mismatch, expected %llu - got %u\n",
- qp->qp_num, qp->rx_pkts, hdr->ver);
- ntb_list_add(&qp->ntb_rx_pend_q_lock, &entry->entry,
- &qp->rx_pend_q);
+ if (hdr->flags & LINK_DOWN_FLAG) {
+ dev_dbg(&qp->ndev->pdev->dev, "link down flag set\n");
+ ntb_qp_link_down(qp);
+ hdr->flags = 0;
+ return -EAGAIN;
+ }
+
+ if (hdr->ver != (u32)qp->rx_pkts) {
+ dev_dbg(&qp->ndev->pdev->dev,
+ "version mismatch, expected %llu - got %u\n",
+ qp->rx_pkts, hdr->ver);
qp->rx_err_ver++;
return -EIO;
}
- if (hdr->flags & LINK_DOWN_FLAG) {
- ntb_qp_link_down(qp);
+ entry = ntb_list_rm(&qp->ntb_rx_pend_q_lock, &qp->rx_pend_q);
+ if (!entry) {
+ dev_dbg(&qp->ndev->pdev->dev, "no receive buffer\n");
+ qp->rx_err_no_buf++;
+ rc = -ENOMEM;
goto err;
}
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev,
- "rx offset %u, ver %u - %d payload received, buf size %d\n",
+ if (hdr->len > entry->len) {
+ dev_dbg(&qp->ndev->pdev->dev,
+ "receive buffer overflow! Wanted %d got %d\n",
+ hdr->len, entry->len);
+ qp->rx_err_oflow++;
+
+ rc = -EIO;
+ goto err;
+ }
+
+ dev_dbg(&qp->ndev->pdev->dev,
+ "RX OK index %u ver %u size %d into buf size %d\n",
qp->rx_index, hdr->ver, hdr->len, entry->len);
qp->rx_bytes += hdr->len;
qp->rx_pkts++;
- if (hdr->len > entry->len) {
- qp->rx_err_oflow++;
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev,
- "RX overflow! Wanted %d got %d\n",
- hdr->len, entry->len);
-
- goto err;
- }
-
entry->index = qp->rx_index;
entry->rx_hdr = hdr;
ntb_async_rx(entry, offset, hdr->len);
-out:
qp->rx_index++;
qp->rx_index %= qp->rx_max_entry;
return 0;
err:
- ntb_list_add(&qp->ntb_rx_pend_q_lock, &entry->entry, &qp->rx_pend_q);
- /* Ensure that the data is fully copied out before clearing the flag */
- wmb();
+ /* FIXME: if this syncrhonous update of the rx_index gets ahead of
+ * asyncrhonous ntb_rx_copy_callback of previous entry, there are three
+ * scenarios:
+ *
+ * 1) The peer might miss this update, but observe the update
+ * from the memcpy completion callback. In this case, the buffer will
+ * not be freed on the peer to be reused for a different packet. The
+ * successful rx of a later packet would clear the condition, but the
+ * condition could persist if several rx fail in a row.
+ *
+ * 2) The peer may observe this update before the asyncrhonous copy of
+ * prior packets is completed. The peer may overwrite the buffers of
+ * the prior packets before they are copied.
+ *
+ * 3) Both: the peer may observe the update, and then observe the index
+ * decrement by the asynchronous completion callback. Who knows what
+ * badness that will cause.
+ */
hdr->flags = 0;
iowrite32(qp->rx_index, &qp->rx_info->entry);
- goto out;
+ return rc;
}
-static int ntb_transport_rxc_db(void *data, int db_num)
+static void ntb_transport_rxc_db(unsigned long data)
{
- struct ntb_transport_qp *qp = data;
+ struct ntb_transport_qp *qp = (void *)data;
int rc, i;
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n",
- __func__, db_num);
+ dev_dbg(&qp->ndev->pdev->dev, "%s: doorbell %d received\n",
+ __func__, qp->qp_num);
/* Limit the number of packets processed in a single interrupt to
* provide fairness to others
@@ -1231,7 +1336,21 @@
if (qp->dma_chan)
dma_async_issue_pending(qp->dma_chan);
- return i;
+ if (i == qp->rx_max_entry) {
+ /* there is more work to do */
+ tasklet_schedule(&qp->rxc_db_work);
+ } else if (ntb_db_read(qp->ndev) & BIT_ULL(qp->qp_num)) {
+ /* the doorbell bit is set: clear it */
+ ntb_db_clear(qp->ndev, BIT_ULL(qp->qp_num));
+ /* ntb_db_read ensures ntb_db_clear write is committed */
+ ntb_db_read(qp->ndev);
+
+ /* an interrupt may have arrived between finishing
+ * ntb_process_rxc and clearing the doorbell bit:
+ * there might be some more work to do.
+ */
+ tasklet_schedule(&qp->rxc_db_work);
+ }
}
static void ntb_tx_copy_callback(void *data)
@@ -1240,11 +1359,9 @@
struct ntb_transport_qp *qp = entry->qp;
struct ntb_payload_header __iomem *hdr = entry->tx_hdr;
- /* Ensure that the data is fully copied out before setting the flags */
- wmb();
iowrite32(entry->flags | DESC_DONE_FLAG, &hdr->flags);
- ntb_ring_doorbell(qp->ndev, qp->qp_num);
+ ntb_peer_db_set(qp->ndev, BIT_ULL(qp->qp_num));
/* The entry length can only be zero if the packet is intended to be a
* "link down" or similar. Since no payload is being sent in these
@@ -1263,7 +1380,18 @@
static void ntb_memcpy_tx(struct ntb_queue_entry *entry, void __iomem *offset)
{
+#ifdef ARCH_HAS_NOCACHE_UACCESS
+ /*
+ * Using non-temporal mov to improve performance on non-cached
+ * writes, even though we aren't actually copying from user space.
+ */
+ __copy_from_user_inatomic_nocache(offset, entry->buf, entry->len);
+#else
memcpy_toio(offset, entry->buf, entry->len);
+#endif
+
+ /* Ensure that the data is fully copied out before setting the flags */
+ wmb();
ntb_tx_copy_callback(entry);
}
@@ -1288,7 +1416,7 @@
entry->tx_hdr = hdr;
iowrite32(entry->len, &hdr->len);
- iowrite32((u32) qp->tx_pkts, &hdr->ver);
+ iowrite32((u32)qp->tx_pkts, &hdr->ver);
if (!chan)
goto err;
@@ -1298,8 +1426,8 @@
device = chan->device;
dest = qp->tx_mw_phys + qp->tx_max_frame * qp->tx_index;
- buff_off = (size_t) buf & ~PAGE_MASK;
- dest_off = (size_t) dest & ~PAGE_MASK;
+ buff_off = (size_t)buf & ~PAGE_MASK;
+ dest_off = (size_t)dest & ~PAGE_MASK;
if (!is_dma_copy_aligned(device, buff_off, dest_off, len))
goto err;
@@ -1347,9 +1475,6 @@
static int ntb_process_tx(struct ntb_transport_qp *qp,
struct ntb_queue_entry *entry)
{
- dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%lld - tx %u, entry len %d flags %x buff %p\n",
- qp->tx_pkts, qp->tx_index, entry->len, entry->flags,
- entry->buf);
if (qp->tx_index == qp->remote_rx_info->entry) {
qp->tx_ring_full++;
return -EAGAIN;
@@ -1376,15 +1501,14 @@
static void ntb_send_link_down(struct ntb_transport_qp *qp)
{
- struct pci_dev *pdev = ntb_query_pdev(qp->ndev);
+ struct pci_dev *pdev = qp->ndev->pdev;
struct ntb_queue_entry *entry;
int i, rc;
- if (qp->qp_link == NTB_LINK_DOWN)
+ if (!qp->link_is_up)
return;
- qp->qp_link = NTB_LINK_DOWN;
- dev_info(&pdev->dev, "qp %d: Link Down\n", qp->qp_num);
+ dev_info(&pdev->dev, "qp %d: Send Link Down\n", qp->qp_num);
for (i = 0; i < NTB_LINK_DOWN_TIMEOUT; i++) {
entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q);
@@ -1405,6 +1529,13 @@
if (rc)
dev_err(&pdev->dev, "ntb: QP%d unable to send linkdown msg\n",
qp->qp_num);
+
+ ntb_qp_link_down_reset(qp);
+}
+
+static bool ntb_dma_filter_fn(struct dma_chan *chan, void *node)
+{
+ return dev_to_node(&chan->dev->device) == (int)(unsigned long)node;
}
/**
@@ -1422,18 +1553,25 @@
* RETURNS: pointer to newly created ntb_queue, NULL on error.
*/
struct ntb_transport_qp *
-ntb_transport_create_queue(void *data, struct pci_dev *pdev,
+ntb_transport_create_queue(void *data, struct device *client_dev,
const struct ntb_queue_handlers *handlers)
{
+ struct ntb_dev *ndev;
+ struct pci_dev *pdev;
+ struct ntb_transport_ctx *nt;
struct ntb_queue_entry *entry;
struct ntb_transport_qp *qp;
- struct ntb_transport *nt;
+ u64 qp_bit;
unsigned int free_queue;
- int rc, i;
+ dma_cap_mask_t dma_mask;
+ int node;
+ int i;
- nt = ntb_find_transport(pdev);
- if (!nt)
- goto err;
+ ndev = dev_ntb(client_dev->parent);
+ pdev = ndev->pdev;
+ nt = ndev->ctx;
+
+ node = dev_to_node(&ndev->dev);
free_queue = ffs(nt->qp_bitmap);
if (!free_queue)
@@ -1442,23 +1580,31 @@
/* decrement free_queue to make it zero based */
free_queue--;
- clear_bit(free_queue, &nt->qp_bitmap);
+ qp = &nt->qp_vec[free_queue];
+ qp_bit = BIT_ULL(qp->qp_num);
- qp = &nt->qps[free_queue];
+ nt->qp_bitmap_free &= ~qp_bit;
+
qp->cb_data = data;
qp->rx_handler = handlers->rx_handler;
qp->tx_handler = handlers->tx_handler;
qp->event_handler = handlers->event_handler;
- dmaengine_get();
- qp->dma_chan = dma_find_channel(DMA_MEMCPY);
- if (!qp->dma_chan) {
- dmaengine_put();
- dev_info(&pdev->dev, "Unable to allocate DMA channel, using CPU instead\n");
+ dma_cap_zero(dma_mask);
+ dma_cap_set(DMA_MEMCPY, dma_mask);
+
+ if (use_dma) {
+ qp->dma_chan = dma_request_channel(dma_mask, ntb_dma_filter_fn,
+ (void *)(unsigned long)node);
+ if (!qp->dma_chan)
+ dev_info(&pdev->dev, "Unable to allocate DMA channel\n");
+ } else {
+ qp->dma_chan = NULL;
}
+ dev_dbg(&pdev->dev, "Using %s memcpy\n", qp->dma_chan ? "DMA" : "CPU");
for (i = 0; i < NTB_QP_DEF_NUM_ENTRIES; i++) {
- entry = kzalloc(sizeof(struct ntb_queue_entry), GFP_ATOMIC);
+ entry = kzalloc_node(sizeof(*entry), GFP_ATOMIC, node);
if (!entry)
goto err1;
@@ -1468,7 +1614,7 @@
}
for (i = 0; i < NTB_QP_DEF_NUM_ENTRIES; i++) {
- entry = kzalloc(sizeof(struct ntb_queue_entry), GFP_ATOMIC);
+ entry = kzalloc_node(sizeof(*entry), GFP_ATOMIC, node);
if (!entry)
goto err2;
@@ -1477,10 +1623,8 @@
&qp->tx_free_q);
}
- rc = ntb_register_db_callback(qp->ndev, free_queue, qp,
- ntb_transport_rxc_db);
- if (rc)
- goto err2;
+ ntb_db_clear(qp->ndev, qp_bit);
+ ntb_db_clear_mask(qp->ndev, qp_bit);
dev_info(&pdev->dev, "NTB Transport QP %d created\n", qp->qp_num);
@@ -1493,8 +1637,8 @@
while ((entry = ntb_list_rm(&qp->ntb_rx_free_q_lock, &qp->rx_free_q)))
kfree(entry);
if (qp->dma_chan)
- dmaengine_put();
- set_bit(free_queue, &nt->qp_bitmap);
+ dma_release_channel(qp->dma_chan);
+ nt->qp_bitmap_free |= qp_bit;
err:
return NULL;
}
@@ -1508,13 +1652,15 @@
*/
void ntb_transport_free_queue(struct ntb_transport_qp *qp)
{
+ struct ntb_transport_ctx *nt = qp->transport;
struct pci_dev *pdev;
struct ntb_queue_entry *entry;
+ u64 qp_bit;
if (!qp)
return;
- pdev = ntb_query_pdev(qp->ndev);
+ pdev = qp->ndev->pdev;
if (qp->dma_chan) {
struct dma_chan *chan = qp->dma_chan;
@@ -1528,13 +1674,21 @@
*/
dma_sync_wait(chan, qp->last_cookie);
dmaengine_terminate_all(chan);
- dmaengine_put();
+ dma_release_channel(chan);
}
- ntb_unregister_db_callback(qp->ndev, qp->qp_num);
+ qp_bit = BIT_ULL(qp->qp_num);
+
+ ntb_db_set_mask(qp->ndev, qp_bit);
+ tasklet_disable(&qp->rxc_db_work);
cancel_delayed_work_sync(&qp->link_work);
+ qp->cb_data = NULL;
+ qp->rx_handler = NULL;
+ qp->tx_handler = NULL;
+ qp->event_handler = NULL;
+
while ((entry = ntb_list_rm(&qp->ntb_rx_free_q_lock, &qp->rx_free_q)))
kfree(entry);
@@ -1546,7 +1700,7 @@
while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q)))
kfree(entry);
- set_bit(qp->qp_num, &qp->transport->qp_bitmap);
+ nt->qp_bitmap_free |= qp_bit;
dev_info(&pdev->dev, "NTB Transport QP %d freed\n", qp->qp_num);
}
@@ -1567,7 +1721,7 @@
struct ntb_queue_entry *entry;
void *buf;
- if (!qp || qp->client_ready == NTB_LINK_UP)
+ if (!qp || qp->client_ready)
return NULL;
entry = ntb_list_rm(&qp->ntb_rx_pend_q_lock, &qp->rx_pend_q);
@@ -1636,7 +1790,7 @@
struct ntb_queue_entry *entry;
int rc;
- if (!qp || qp->qp_link != NTB_LINK_UP || !len)
+ if (!qp || !qp->link_is_up || !len)
return -EINVAL;
entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q);
@@ -1670,9 +1824,9 @@
if (!qp)
return;
- qp->client_ready = NTB_LINK_UP;
+ qp->client_ready = true;
- if (qp->transport->transport_link == NTB_LINK_UP)
+ if (qp->transport->link_is_up)
schedule_delayed_work(&qp->link_work, 0);
}
EXPORT_SYMBOL_GPL(ntb_transport_link_up);
@@ -1688,27 +1842,20 @@
void ntb_transport_link_down(struct ntb_transport_qp *qp)
{
struct pci_dev *pdev;
- int rc, val;
+ int val;
if (!qp)
return;
- pdev = ntb_query_pdev(qp->ndev);
- qp->client_ready = NTB_LINK_DOWN;
+ pdev = qp->ndev->pdev;
+ qp->client_ready = false;
- rc = ntb_read_local_spad(qp->ndev, QP_LINKS, &val);
- if (rc) {
- dev_err(&pdev->dev, "Error reading spad %d\n", QP_LINKS);
- return;
- }
+ val = ntb_spad_read(qp->ndev, QP_LINKS);
- rc = ntb_write_remote_spad(qp->ndev, QP_LINKS,
- val & ~(1 << qp->qp_num));
- if (rc)
- dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
- val & ~(1 << qp->qp_num), QP_LINKS);
+ ntb_peer_spad_write(qp->ndev, QP_LINKS,
+ val & ~BIT(qp->qp_num));
- if (qp->qp_link == NTB_LINK_UP)
+ if (qp->link_is_up)
ntb_send_link_down(qp);
else
cancel_delayed_work_sync(&qp->link_work);
@@ -1728,7 +1875,7 @@
if (!qp)
return false;
- return qp->qp_link == NTB_LINK_UP;
+ return qp->link_is_up;
}
EXPORT_SYMBOL_GPL(ntb_transport_link_query);
@@ -1774,3 +1921,71 @@
return max;
}
EXPORT_SYMBOL_GPL(ntb_transport_max_size);
+
+static void ntb_transport_doorbell_callback(void *data, int vector)
+{
+ struct ntb_transport_ctx *nt = data;
+ struct ntb_transport_qp *qp;
+ u64 db_bits;
+ unsigned int qp_num;
+
+ db_bits = (nt->qp_bitmap & ~nt->qp_bitmap_free &
+ ntb_db_vector_mask(nt->ndev, vector));
+
+ while (db_bits) {
+ qp_num = __ffs(db_bits);
+ qp = &nt->qp_vec[qp_num];
+
+ tasklet_schedule(&qp->rxc_db_work);
+
+ db_bits &= ~BIT_ULL(qp_num);
+ }
+}
+
+static const struct ntb_ctx_ops ntb_transport_ops = {
+ .link_event = ntb_transport_event_callback,
+ .db_event = ntb_transport_doorbell_callback,
+};
+
+static struct ntb_client ntb_transport_client = {
+ .ops = {
+ .probe = ntb_transport_probe,
+ .remove = ntb_transport_free,
+ },
+};
+
+static int __init ntb_transport_init(void)
+{
+ int rc;
+
+ pr_info("%s, version %s\n", NTB_TRANSPORT_DESC, NTB_TRANSPORT_VER);
+
+ if (debugfs_initialized())
+ nt_debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+ rc = bus_register(&ntb_transport_bus);
+ if (rc)
+ goto err_bus;
+
+ rc = ntb_register_client(&ntb_transport_client);
+ if (rc)
+ goto err_client;
+
+ return 0;
+
+err_client:
+ bus_unregister(&ntb_transport_bus);
+err_bus:
+ debugfs_remove_recursive(nt_debugfs_dir);
+ return rc;
+}
+module_init(ntb_transport_init);
+
+static void __exit ntb_transport_exit(void)
+{
+ debugfs_remove_recursive(nt_debugfs_dir);
+
+ ntb_unregister_client(&ntb_transport_client);
+ bus_unregister(&ntb_transport_bus);
+}
+module_exit(ntb_transport_exit);
diff --git a/drivers/ntb/test/Kconfig b/drivers/ntb/test/Kconfig
new file mode 100644
index 0000000..01852f9
--- /dev/null
+++ b/drivers/ntb/test/Kconfig
@@ -0,0 +1,19 @@
+config NTB_PINGPONG
+ tristate "NTB Ping Pong Test Client"
+ help
+ This is a simple ping pong driver that exercises the scratchpads and
+ doorbells of the ntb hardware. This driver may be used to test that
+ your ntb hardware and drivers are functioning at a basic level.
+
+ If unsure, say N.
+
+config NTB_TOOL
+ tristate "NTB Debugging Tool Test Client"
+ help
+ This is a simple debugging driver that enables the doorbell and
+ scratchpad registers to be read and written from the debugfs. This
+ enables more complicated debugging to be scripted from user space.
+ This driver may be used to test that your ntb hardware and drivers are
+ functioning at a basic level.
+
+ If unsure, say N.
diff --git a/drivers/ntb/test/Makefile b/drivers/ntb/test/Makefile
new file mode 100644
index 0000000..0ea32a3
--- /dev/null
+++ b/drivers/ntb/test/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_NTB_PINGPONG) += ntb_pingpong.o
+obj-$(CONFIG_NTB_TOOL) += ntb_tool.o
diff --git a/drivers/ntb/test/ntb_pingpong.c b/drivers/ntb/test/ntb_pingpong.c
new file mode 100644
index 0000000..fe16005
--- /dev/null
+++ b/drivers/ntb/test/ntb_pingpong.c
@@ -0,0 +1,250 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * PCIe NTB Pingpong Linux driver
+ *
+ * Contact Information:
+ * Allen Hubbe <Allen.Hubbe@emc.com>
+ */
+
+/* Note: load this module with option 'dyndbg=+p' */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <linux/ntb.h>
+
+#define DRIVER_NAME "ntb_pingpong"
+#define DRIVER_DESCRIPTION "PCIe NTB Simple Pingpong Client"
+
+#define DRIVER_LICENSE "Dual BSD/GPL"
+#define DRIVER_VERSION "1.0"
+#define DRIVER_RELDATE "24 March 2015"
+#define DRIVER_AUTHOR "Allen Hubbe <Allen.Hubbe@emc.com>"
+
+MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+
+static unsigned int unsafe;
+module_param(unsafe, uint, 0644);
+MODULE_PARM_DESC(unsafe, "Run even though ntb operations may be unsafe");
+
+static unsigned int delay_ms = 1000;
+module_param(delay_ms, uint, 0644);
+MODULE_PARM_DESC(delay_ms, "Milliseconds to delay the response to peer");
+
+static unsigned long db_init = 0x7;
+module_param(db_init, ulong, 0644);
+MODULE_PARM_DESC(delay_ms, "Initial doorbell bits to ring on the peer");
+
+struct pp_ctx {
+ struct ntb_dev *ntb;
+ u64 db_bits;
+ /* synchronize access to db_bits by ping and pong */
+ spinlock_t db_lock;
+ struct timer_list db_timer;
+ unsigned long db_delay;
+};
+
+static void pp_ping(unsigned long ctx)
+{
+ struct pp_ctx *pp = (void *)ctx;
+ unsigned long irqflags;
+ u64 db_bits, db_mask;
+ u32 spad_rd, spad_wr;
+
+ spin_lock_irqsave(&pp->db_lock, irqflags);
+ {
+ db_mask = ntb_db_valid_mask(pp->ntb);
+ db_bits = ntb_db_read(pp->ntb);
+
+ if (db_bits) {
+ dev_dbg(&pp->ntb->dev,
+ "Masked pongs %#llx\n",
+ db_bits);
+ ntb_db_clear(pp->ntb, db_bits);
+ }
+
+ db_bits = ((pp->db_bits | db_bits) << 1) & db_mask;
+
+ if (!db_bits)
+ db_bits = db_init;
+
+ spad_rd = ntb_spad_read(pp->ntb, 0);
+ spad_wr = spad_rd + 1;
+
+ dev_dbg(&pp->ntb->dev,
+ "Ping bits %#llx read %#x write %#x\n",
+ db_bits, spad_rd, spad_wr);
+
+ ntb_peer_spad_write(pp->ntb, 0, spad_wr);
+ ntb_peer_db_set(pp->ntb, db_bits);
+ ntb_db_clear_mask(pp->ntb, db_mask);
+
+ pp->db_bits = 0;
+ }
+ spin_unlock_irqrestore(&pp->db_lock, irqflags);
+}
+
+static void pp_link_event(void *ctx)
+{
+ struct pp_ctx *pp = ctx;
+
+ if (ntb_link_is_up(pp->ntb, NULL, NULL) == 1) {
+ dev_dbg(&pp->ntb->dev, "link is up\n");
+ pp_ping((unsigned long)pp);
+ } else {
+ dev_dbg(&pp->ntb->dev, "link is down\n");
+ del_timer(&pp->db_timer);
+ }
+}
+
+static void pp_db_event(void *ctx, int vec)
+{
+ struct pp_ctx *pp = ctx;
+ u64 db_bits, db_mask;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&pp->db_lock, irqflags);
+ {
+ db_mask = ntb_db_vector_mask(pp->ntb, vec);
+ db_bits = db_mask & ntb_db_read(pp->ntb);
+ ntb_db_set_mask(pp->ntb, db_mask);
+ ntb_db_clear(pp->ntb, db_bits);
+
+ pp->db_bits |= db_bits;
+
+ mod_timer(&pp->db_timer, jiffies + pp->db_delay);
+
+ dev_dbg(&pp->ntb->dev,
+ "Pong vec %d bits %#llx\n",
+ vec, db_bits);
+ }
+ spin_unlock_irqrestore(&pp->db_lock, irqflags);
+}
+
+static const struct ntb_ctx_ops pp_ops = {
+ .link_event = pp_link_event,
+ .db_event = pp_db_event,
+};
+
+static int pp_probe(struct ntb_client *client,
+ struct ntb_dev *ntb)
+{
+ struct pp_ctx *pp;
+ int rc;
+
+ if (ntb_db_is_unsafe(ntb)) {
+ dev_dbg(&ntb->dev, "doorbell is unsafe\n");
+ if (!unsafe) {
+ rc = -EINVAL;
+ goto err_pp;
+ }
+ }
+
+ if (ntb_spad_is_unsafe(ntb)) {
+ dev_dbg(&ntb->dev, "scratchpad is unsafe\n");
+ if (!unsafe) {
+ rc = -EINVAL;
+ goto err_pp;
+ }
+ }
+
+ pp = kmalloc(sizeof(*pp), GFP_KERNEL);
+ if (!pp) {
+ rc = -ENOMEM;
+ goto err_pp;
+ }
+
+ pp->ntb = ntb;
+ pp->db_bits = 0;
+ spin_lock_init(&pp->db_lock);
+ setup_timer(&pp->db_timer, pp_ping, (unsigned long)pp);
+ pp->db_delay = msecs_to_jiffies(delay_ms);
+
+ rc = ntb_set_ctx(ntb, pp, &pp_ops);
+ if (rc)
+ goto err_ctx;
+
+ ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);
+ ntb_link_event(ntb);
+
+ return 0;
+
+err_ctx:
+ kfree(pp);
+err_pp:
+ return rc;
+}
+
+static void pp_remove(struct ntb_client *client,
+ struct ntb_dev *ntb)
+{
+ struct pp_ctx *pp = ntb->ctx;
+
+ ntb_clear_ctx(ntb);
+ del_timer_sync(&pp->db_timer);
+ ntb_link_disable(ntb);
+
+ kfree(pp);
+}
+
+static struct ntb_client pp_client = {
+ .ops = {
+ .probe = pp_probe,
+ .remove = pp_remove,
+ },
+};
+module_ntb_client(pp_client);
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
new file mode 100644
index 0000000..6f5dc6c
--- /dev/null
+++ b/drivers/ntb/test/ntb_tool.c
@@ -0,0 +1,556 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * PCIe NTB Debugging Tool Linux driver
+ *
+ * Contact Information:
+ * Allen Hubbe <Allen.Hubbe@emc.com>
+ */
+
+/*
+ * How to use this tool, by example.
+ *
+ * Assuming $DBG_DIR is something like:
+ * '/sys/kernel/debug/ntb_tool/0000:00:03.0'
+ *
+ * Eg: check if clearing the doorbell mask generates an interrupt.
+ *
+ * # Set the doorbell mask
+ * root@self# echo 's 1' > $DBG_DIR/mask
+ *
+ * # Ring the doorbell from the peer
+ * root@peer# echo 's 1' > $DBG_DIR/peer_db
+ *
+ * # Clear the doorbell mask
+ * root@self# echo 'c 1' > $DBG_DIR/mask
+ *
+ * Observe debugging output in dmesg or your console. You should see a
+ * doorbell event triggered by clearing the mask. If not, this may indicate an
+ * issue with the hardware that needs to be worked around in the driver.
+ *
+ * Eg: read and write scratchpad registers
+ *
+ * root@peer# echo '0 0x01010101 1 0x7f7f7f7f' > $DBG_DIR/peer_spad
+ *
+ * root@self# cat $DBG_DIR/spad
+ *
+ * Observe that spad 0 and 1 have the values set by the peer.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/debugfs.h>
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+
+#include <linux/ntb.h>
+
+#define DRIVER_NAME "ntb_tool"
+#define DRIVER_DESCRIPTION "PCIe NTB Debugging Tool"
+
+#define DRIVER_LICENSE "Dual BSD/GPL"
+#define DRIVER_VERSION "1.0"
+#define DRIVER_RELDATE "22 April 2015"
+#define DRIVER_AUTHOR "Allen Hubbe <Allen.Hubbe@emc.com>"
+
+MODULE_LICENSE(DRIVER_LICENSE);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+
+static struct dentry *tool_dbgfs;
+
+struct tool_ctx {
+ struct ntb_dev *ntb;
+ struct dentry *dbgfs;
+};
+
+#define SPAD_FNAME_SIZE 0x10
+#define INT_PTR(x) ((void *)(unsigned long)x)
+#define PTR_INT(x) ((int)(unsigned long)x)
+
+#define TOOL_FOPS_RDWR(__name, __read, __write) \
+ const struct file_operations __name = { \
+ .owner = THIS_MODULE, \
+ .open = simple_open, \
+ .read = __read, \
+ .write = __write, \
+ }
+
+static void tool_link_event(void *ctx)
+{
+ struct tool_ctx *tc = ctx;
+ enum ntb_speed speed;
+ enum ntb_width width;
+ int up;
+
+ up = ntb_link_is_up(tc->ntb, &speed, &width);
+
+ dev_dbg(&tc->ntb->dev, "link is %s speed %d width %d\n",
+ up ? "up" : "down", speed, width);
+}
+
+static void tool_db_event(void *ctx, int vec)
+{
+ struct tool_ctx *tc = ctx;
+ u64 db_bits, db_mask;
+
+ db_mask = ntb_db_vector_mask(tc->ntb, vec);
+ db_bits = ntb_db_read(tc->ntb);
+
+ dev_dbg(&tc->ntb->dev, "doorbell vec %d mask %#llx bits %#llx\n",
+ vec, db_mask, db_bits);
+}
+
+static const struct ntb_ctx_ops tool_ops = {
+ .link_event = tool_link_event,
+ .db_event = tool_db_event,
+};
+
+static ssize_t tool_dbfn_read(struct tool_ctx *tc, char __user *ubuf,
+ size_t size, loff_t *offp,
+ u64 (*db_read_fn)(struct ntb_dev *))
+{
+ size_t buf_size;
+ char *buf;
+ ssize_t pos, rc;
+
+ if (!db_read_fn)
+ return -EINVAL;
+
+ buf_size = min_t(size_t, size, 0x20);
+
+ buf = kmalloc(buf_size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos = scnprintf(buf, buf_size, "%#llx\n",
+ db_read_fn(tc->ntb));
+
+ rc = simple_read_from_buffer(ubuf, size, offp, buf, pos);
+
+ kfree(buf);
+
+ return rc;
+}
+
+static ssize_t tool_dbfn_write(struct tool_ctx *tc,
+ const char __user *ubuf,
+ size_t size, loff_t *offp,
+ int (*db_set_fn)(struct ntb_dev *, u64),
+ int (*db_clear_fn)(struct ntb_dev *, u64))
+{
+ u64 db_bits;
+ char *buf, cmd;
+ ssize_t rc;
+ int n;
+
+ buf = kmalloc(size + 1, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ rc = simple_write_to_buffer(buf, size, offp, ubuf, size);
+ if (rc < 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ buf[size] = 0;
+
+ n = sscanf(buf, "%c %lli", &cmd, &db_bits);
+
+ kfree(buf);
+
+ if (n != 2) {
+ rc = -EINVAL;
+ } else if (cmd == 's') {
+ if (!db_set_fn)
+ rc = -EINVAL;
+ else
+ rc = db_set_fn(tc->ntb, db_bits);
+ } else if (cmd == 'c') {
+ if (!db_clear_fn)
+ rc = -EINVAL;
+ else
+ rc = db_clear_fn(tc->ntb, db_bits);
+ } else {
+ rc = -EINVAL;
+ }
+
+ return rc ? : size;
+}
+
+static ssize_t tool_spadfn_read(struct tool_ctx *tc, char __user *ubuf,
+ size_t size, loff_t *offp,
+ u32 (*spad_read_fn)(struct ntb_dev *, int))
+{
+ size_t buf_size;
+ char *buf;
+ ssize_t pos, rc;
+ int i, spad_count;
+
+ if (!spad_read_fn)
+ return -EINVAL;
+
+ buf_size = min_t(size_t, size, 0x100);
+
+ buf = kmalloc(buf_size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos = 0;
+
+ spad_count = ntb_spad_count(tc->ntb);
+ for (i = 0; i < spad_count; ++i) {
+ pos += scnprintf(buf + pos, buf_size - pos, "%d\t%#x\n",
+ i, spad_read_fn(tc->ntb, i));
+ }
+
+ rc = simple_read_from_buffer(ubuf, size, offp, buf, pos);
+
+ kfree(buf);
+
+ return rc;
+}
+
+static ssize_t tool_spadfn_write(struct tool_ctx *tc,
+ const char __user *ubuf,
+ size_t size, loff_t *offp,
+ int (*spad_write_fn)(struct ntb_dev *,
+ int, u32))
+{
+ int spad_idx;
+ u32 spad_val;
+ char *buf;
+ int pos, n;
+ ssize_t rc;
+
+ if (!spad_write_fn) {
+ dev_dbg(&tc->ntb->dev, "no spad write fn\n");
+ return -EINVAL;
+ }
+
+ buf = kmalloc(size + 1, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ rc = simple_write_to_buffer(buf, size, offp, ubuf, size);
+ if (rc < 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ buf[size] = 0;
+
+ n = sscanf(buf, "%d %i%n", &spad_idx, &spad_val, &pos);
+ while (n == 2) {
+ rc = spad_write_fn(tc->ntb, spad_idx, spad_val);
+ if (rc)
+ break;
+
+ n = sscanf(buf + pos, "%d %i%n", &spad_idx, &spad_val, &pos);
+ }
+
+ if (n < 0)
+ rc = n;
+
+ kfree(buf);
+
+ return rc ? : size;
+}
+
+static ssize_t tool_db_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->db_read);
+}
+
+static ssize_t tool_db_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->db_set,
+ tc->ntb->ops->db_clear);
+}
+
+static TOOL_FOPS_RDWR(tool_db_fops,
+ tool_db_read,
+ tool_db_write);
+
+static ssize_t tool_mask_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->db_read_mask);
+}
+
+static ssize_t tool_mask_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->db_set_mask,
+ tc->ntb->ops->db_clear_mask);
+}
+
+static TOOL_FOPS_RDWR(tool_mask_fops,
+ tool_mask_read,
+ tool_mask_write);
+
+static ssize_t tool_peer_db_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_db_read);
+}
+
+static ssize_t tool_peer_db_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_db_set,
+ tc->ntb->ops->peer_db_clear);
+}
+
+static TOOL_FOPS_RDWR(tool_peer_db_fops,
+ tool_peer_db_read,
+ tool_peer_db_write);
+
+static ssize_t tool_peer_mask_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_db_read_mask);
+}
+
+static ssize_t tool_peer_mask_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_dbfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_db_set_mask,
+ tc->ntb->ops->peer_db_clear_mask);
+}
+
+static TOOL_FOPS_RDWR(tool_peer_mask_fops,
+ tool_peer_mask_read,
+ tool_peer_mask_write);
+
+static ssize_t tool_spad_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_spadfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->spad_read);
+}
+
+static ssize_t tool_spad_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_spadfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->spad_write);
+}
+
+static TOOL_FOPS_RDWR(tool_spad_fops,
+ tool_spad_read,
+ tool_spad_write);
+
+static ssize_t tool_peer_spad_read(struct file *filep, char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_spadfn_read(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_spad_read);
+}
+
+static ssize_t tool_peer_spad_write(struct file *filep, const char __user *ubuf,
+ size_t size, loff_t *offp)
+{
+ struct tool_ctx *tc = filep->private_data;
+
+ return tool_spadfn_write(tc, ubuf, size, offp,
+ tc->ntb->ops->peer_spad_write);
+}
+
+static TOOL_FOPS_RDWR(tool_peer_spad_fops,
+ tool_peer_spad_read,
+ tool_peer_spad_write);
+
+static void tool_setup_dbgfs(struct tool_ctx *tc)
+{
+ /* This modules is useless without dbgfs... */
+ if (!tool_dbgfs) {
+ tc->dbgfs = NULL;
+ return;
+ }
+
+ tc->dbgfs = debugfs_create_dir(dev_name(&tc->ntb->dev),
+ tool_dbgfs);
+ if (!tc->dbgfs)
+ return;
+
+ debugfs_create_file("db", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_db_fops);
+
+ debugfs_create_file("mask", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_mask_fops);
+
+ debugfs_create_file("peer_db", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_peer_db_fops);
+
+ debugfs_create_file("peer_mask", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_peer_mask_fops);
+
+ debugfs_create_file("spad", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_spad_fops);
+
+ debugfs_create_file("peer_spad", S_IRUSR | S_IWUSR, tc->dbgfs,
+ tc, &tool_peer_spad_fops);
+}
+
+static int tool_probe(struct ntb_client *self, struct ntb_dev *ntb)
+{
+ struct tool_ctx *tc;
+ int rc;
+
+ if (ntb_db_is_unsafe(ntb))
+ dev_dbg(&ntb->dev, "doorbell is unsafe\n");
+
+ if (ntb_spad_is_unsafe(ntb))
+ dev_dbg(&ntb->dev, "scratchpad is unsafe\n");
+
+ tc = kmalloc(sizeof(*tc), GFP_KERNEL);
+ if (!tc) {
+ rc = -ENOMEM;
+ goto err_tc;
+ }
+
+ tc->ntb = ntb;
+
+ tool_setup_dbgfs(tc);
+
+ rc = ntb_set_ctx(ntb, tc, &tool_ops);
+ if (rc)
+ goto err_ctx;
+
+ ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);
+ ntb_link_event(ntb);
+
+ return 0;
+
+err_ctx:
+ debugfs_remove_recursive(tc->dbgfs);
+ kfree(tc);
+err_tc:
+ return rc;
+}
+
+static void tool_remove(struct ntb_client *self, struct ntb_dev *ntb)
+{
+ struct tool_ctx *tc = ntb->ctx;
+
+ ntb_clear_ctx(ntb);
+ ntb_link_disable(ntb);
+
+ debugfs_remove_recursive(tc->dbgfs);
+ kfree(tc);
+}
+
+static struct ntb_client tool_client = {
+ .ops = {
+ .probe = tool_probe,
+ .remove = tool_remove,
+ },
+};
+
+static int __init tool_init(void)
+{
+ int rc;
+
+ if (debugfs_initialized())
+ tool_dbgfs = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+ rc = ntb_register_client(&tool_client);
+ if (rc)
+ goto err_client;
+
+ return 0;
+
+err_client:
+ debugfs_remove_recursive(tool_dbgfs);
+ return rc;
+}
+module_init(tool_init);
+
+static void __exit tool_exit(void)
+{
+ ntb_unregister_client(&tool_client);
+ debugfs_remove_recursive(tool_dbgfs);
+}
+module_exit(tool_exit);
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 8eb22c0..7e2c43f 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -535,8 +535,6 @@
__func__, dimm_name, cmd_name, i);
return -ENXIO;
}
- if (!access_ok(VERIFY_READ, p + in_len, in_size))
- return -EFAULT;
if (in_len < sizeof(in_env))
copy = min_t(u32, sizeof(in_env) - in_len, in_size);
else
@@ -557,8 +555,6 @@
__func__, dimm_name, cmd_name, i);
return -EFAULT;
}
- if (!access_ok(VERIFY_WRITE, p + in_len + out_len, out_size))
- return -EFAULT;
if (out_len < sizeof(out_env))
copy = min_t(u32, sizeof(out_env) - out_len, out_size);
else
@@ -570,9 +566,6 @@
}
buf_len = out_len + in_len;
- if (!access_ok(VERIFY_WRITE, p, sizeof(buf_len)))
- return -EFAULT;
-
if (buf_len > ND_IOCTL_MAX_BUFLEN) {
dev_dbg(dev, "%s:%s cmd: %s buf_len: %zu > %d\n", __func__,
dimm_name, cmd_name, buf_len,
@@ -706,8 +699,10 @@
nvdimm_major = rc;
nd_class = class_create(THIS_MODULE, "nd");
- if (IS_ERR(nd_class))
+ if (IS_ERR(nd_class)) {
+ rc = PTR_ERR(nd_class);
goto err_class;
+ }
return 0;
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 1e2f57f..6dc13e4 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -912,4 +912,11 @@
a paravirtualized device provided by QEMU; it lets a virtual machine
(guest) communicate panic events to the host.
+config INTEL_PMC_IPC
+ tristate "Intel PMC IPC Driver"
+ ---help---
+ This driver provides support for PMC control on some Intel platforms.
+ The PMC is an ARC processor which defines IPC commands for communication
+ with other entities in the CPU.
+
endif # X86_PLATFORM_DEVICES
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index b3e54ed..dda95a9 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -59,3 +59,4 @@
obj-$(CONFIG_PVPANIC) += pvpanic.o
obj-$(CONFIG_ALIENWARE_WMI) += alienware-wmi.o
+obj-$(CONFIG_INTEL_PMC_IPC) += intel_pmc_ipc.o
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 35de903..ed317cc 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -307,7 +307,6 @@
};
static struct calling_interface_buffer *buffer;
-static struct page *bufferpage;
static DEFINE_MUTEX(buffer_mutex);
static int hwswitch_state;
@@ -424,45 +423,125 @@
}
}
-/* Derived from information in DellWirelessCtl.cpp:
- Class 17, select 11 is radio control. It returns an array of 32-bit values.
-
- Input byte 0 = 0: Wireless information
-
- result[0]: return code
- result[1]:
- Bit 0: Hardware switch supported
- Bit 1: Wifi locator supported
- Bit 2: Wifi is supported
- Bit 3: Bluetooth is supported
- Bit 4: WWAN is supported
- Bit 5: Wireless keyboard supported
- Bits 6-7: Reserved
- Bit 8: Wifi is installed
- Bit 9: Bluetooth is installed
- Bit 10: WWAN is installed
- Bits 11-15: Reserved
- Bit 16: Hardware switch is on
- Bit 17: Wifi is blocked
- Bit 18: Bluetooth is blocked
- Bit 19: WWAN is blocked
- Bits 20-31: Reserved
- result[2]: NVRAM size in bytes
- result[3]: NVRAM format version number
-
- Input byte 0 = 2: Wireless switch configuration
- result[0]: return code
- result[1]:
- Bit 0: Wifi controlled by switch
- Bit 1: Bluetooth controlled by switch
- Bit 2: WWAN controlled by switch
- Bits 3-6: Reserved
- Bit 7: Wireless switch config locked
- Bit 8: Wifi locator enabled
- Bits 9-14: Reserved
- Bit 15: Wifi locator setting locked
- Bits 16-31: Reserved
-*/
+/*
+ * Derived from information in smbios-wireless-ctl:
+ *
+ * cbSelect 17, Value 11
+ *
+ * Return Wireless Info
+ * cbArg1, byte0 = 0x00
+ *
+ * cbRes1 Standard return codes (0, -1, -2)
+ * cbRes2 Info bit flags:
+ *
+ * 0 Hardware switch supported (1)
+ * 1 WiFi locator supported (1)
+ * 2 WLAN supported (1)
+ * 3 Bluetooth (BT) supported (1)
+ * 4 WWAN supported (1)
+ * 5 Wireless KBD supported (1)
+ * 6 Uw b supported (1)
+ * 7 WiGig supported (1)
+ * 8 WLAN installed (1)
+ * 9 BT installed (1)
+ * 10 WWAN installed (1)
+ * 11 Uw b installed (1)
+ * 12 WiGig installed (1)
+ * 13-15 Reserved (0)
+ * 16 Hardware (HW) switch is On (1)
+ * 17 WLAN disabled (1)
+ * 18 BT disabled (1)
+ * 19 WWAN disabled (1)
+ * 20 Uw b disabled (1)
+ * 21 WiGig disabled (1)
+ * 20-31 Reserved (0)
+ *
+ * cbRes3 NVRAM size in bytes
+ * cbRes4, byte 0 NVRAM format version number
+ *
+ *
+ * Set QuickSet Radio Disable Flag
+ * cbArg1, byte0 = 0x01
+ * cbArg1, byte1
+ * Radio ID value:
+ * 0 Radio Status
+ * 1 WLAN ID
+ * 2 BT ID
+ * 3 WWAN ID
+ * 4 UWB ID
+ * 5 WIGIG ID
+ * cbArg1, byte2 Flag bits:
+ * 0 QuickSet disables radio (1)
+ * 1-7 Reserved (0)
+ *
+ * cbRes1 Standard return codes (0, -1, -2)
+ * cbRes2 QuickSet (QS) radio disable bit map:
+ * 0 QS disables WLAN
+ * 1 QS disables BT
+ * 2 QS disables WWAN
+ * 3 QS disables UWB
+ * 4 QS disables WIGIG
+ * 5-31 Reserved (0)
+ *
+ * Wireless Switch Configuration
+ * cbArg1, byte0 = 0x02
+ *
+ * cbArg1, byte1
+ * Subcommand:
+ * 0 Get config
+ * 1 Set config
+ * 2 Set WiFi locator enable/disable
+ * cbArg1,byte2
+ * Switch settings (if byte 1==1):
+ * 0 WLAN sw itch control (1)
+ * 1 BT sw itch control (1)
+ * 2 WWAN sw itch control (1)
+ * 3 UWB sw itch control (1)
+ * 4 WiGig sw itch control (1)
+ * 5-7 Reserved (0)
+ * cbArg1, byte2 Enable bits (if byte 1==2):
+ * 0 Enable WiFi locator (1)
+ *
+ * cbRes1 Standard return codes (0, -1, -2)
+ * cbRes2 QuickSet radio disable bit map:
+ * 0 WLAN controlled by sw itch (1)
+ * 1 BT controlled by sw itch (1)
+ * 2 WWAN controlled by sw itch (1)
+ * 3 UWB controlled by sw itch (1)
+ * 4 WiGig controlled by sw itch (1)
+ * 5-6 Reserved (0)
+ * 7 Wireless sw itch config locked (1)
+ * 8 WiFi locator enabled (1)
+ * 9-14 Reserved (0)
+ * 15 WiFi locator setting locked (1)
+ * 16-31 Reserved (0)
+ *
+ * Read Local Config Data (LCD)
+ * cbArg1, byte0 = 0x10
+ * cbArg1, byte1 NVRAM index low byte
+ * cbArg1, byte2 NVRAM index high byte
+ * cbRes1 Standard return codes (0, -1, -2)
+ * cbRes2 4 bytes read from LCD[index]
+ * cbRes3 4 bytes read from LCD[index+4]
+ * cbRes4 4 bytes read from LCD[index+8]
+ *
+ * Write Local Config Data (LCD)
+ * cbArg1, byte0 = 0x11
+ * cbArg1, byte1 NVRAM index low byte
+ * cbArg1, byte2 NVRAM index high byte
+ * cbArg2 4 bytes to w rite at LCD[index]
+ * cbArg3 4 bytes to w rite at LCD[index+4]
+ * cbArg4 4 bytes to w rite at LCD[index+8]
+ * cbRes1 Standard return codes (0, -1, -2)
+ *
+ * Populate Local Config Data from NVRAM
+ * cbArg1, byte0 = 0x12
+ * cbRes1 Standard return codes (0, -1, -2)
+ *
+ * Commit Local Config Data to NVRAM
+ * cbArg1, byte0 = 0x13
+ * cbRes1 Standard return codes (0, -1, -2)
+ */
static int dell_rfkill_set(void *data, bool blocked)
{
@@ -550,12 +629,21 @@
(status & BIT(4)) >> 4);
seq_printf(s, "Bit 5 : Wireless keyboard supported: %lu\n",
(status & BIT(5)) >> 5);
+ seq_printf(s, "Bit 6 : UWB supported: %lu\n",
+ (status & BIT(6)) >> 6);
+ seq_printf(s, "Bit 7 : WiGig supported: %lu\n",
+ (status & BIT(7)) >> 7);
seq_printf(s, "Bit 8 : Wifi is installed: %lu\n",
(status & BIT(8)) >> 8);
seq_printf(s, "Bit 9 : Bluetooth is installed: %lu\n",
(status & BIT(9)) >> 9);
seq_printf(s, "Bit 10: WWAN is installed: %lu\n",
(status & BIT(10)) >> 10);
+ seq_printf(s, "Bit 11: UWB installed: %lu\n",
+ (status & BIT(11)) >> 11);
+ seq_printf(s, "Bit 12: WiGig installed: %lu\n",
+ (status & BIT(12)) >> 12);
+
seq_printf(s, "Bit 16: Hardware switch is on: %lu\n",
(status & BIT(16)) >> 16);
seq_printf(s, "Bit 17: Wifi is blocked: %lu\n",
@@ -564,6 +652,10 @@
(status & BIT(18)) >> 18);
seq_printf(s, "Bit 19: WWAN is blocked: %lu\n",
(status & BIT(19)) >> 19);
+ seq_printf(s, "Bit 20: UWB is blocked: %lu\n",
+ (status & BIT(20)) >> 20);
+ seq_printf(s, "Bit 21: WiGig is blocked: %lu\n",
+ (status & BIT(21)) >> 21);
seq_printf(s, "\nhwswitch_state:\t0x%X\n", hwswitch_state);
seq_printf(s, "Bit 0 : Wifi controlled by switch: %lu\n",
@@ -572,6 +664,10 @@
(hwswitch_state & BIT(1)) >> 1);
seq_printf(s, "Bit 2 : WWAN controlled by switch: %lu\n",
(hwswitch_state & BIT(2)) >> 2);
+ seq_printf(s, "Bit 3 : UWB controlled by switch: %lu\n",
+ (hwswitch_state & BIT(3)) >> 3);
+ seq_printf(s, "Bit 4 : WiGig controlled by switch: %lu\n",
+ (hwswitch_state & BIT(4)) >> 4);
seq_printf(s, "Bit 7 : Wireless switch config locked: %lu\n",
(hwswitch_state & BIT(7)) >> 7);
seq_printf(s, "Bit 8 : Wifi locator enabled: %lu\n",
@@ -1972,12 +2068,11 @@
* Allocate buffer below 4GB for SMI data--only 32-bit physical addr
* is passed to SMI handler.
*/
- bufferpage = alloc_page(GFP_KERNEL | GFP_DMA32);
- if (!bufferpage) {
+ buffer = (void *)__get_free_page(GFP_KERNEL | GFP_DMA32);
+ if (!buffer) {
ret = -ENOMEM;
goto fail_buffer;
}
- buffer = page_address(bufferpage);
ret = dell_setup_rfkill();
@@ -2034,7 +2129,7 @@
fail_backlight:
dell_cleanup_rfkill();
fail_rfkill:
- free_page((unsigned long)bufferpage);
+ free_page((unsigned long)buffer);
fail_buffer:
platform_device_del(platform_device);
fail_platform_device2:
diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c
new file mode 100644
index 0000000..d734763
--- /dev/null
+++ b/drivers/platform/x86/intel_pmc_ipc.c
@@ -0,0 +1,767 @@
+/*
+ * intel_pmc_ipc.c: Driver for the Intel PMC IPC mechanism
+ *
+ * (C) Copyright 2014-2015 Intel Corporation
+ *
+ * This driver is based on Intel SCU IPC driver(intel_scu_opc.c) by
+ * Sreedhara DS <sreedhara.ds@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ *
+ * PMC running in ARC processor communicates with other entity running in IA
+ * core through IPC mechanism which in turn messaging between IA core ad PMC.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/pm.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/pm_qos.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/sched.h>
+#include <linux/atomic.h>
+#include <linux/notifier.h>
+#include <linux/suspend.h>
+#include <linux/acpi.h>
+#include <asm/intel_pmc_ipc.h>
+#include <linux/mfd/lpc_ich.h>
+
+/*
+ * IPC registers
+ * The IA write to IPC_CMD command register triggers an interrupt to the ARC,
+ * The ARC handles the interrupt and services it, writing optional data to
+ * the IPC1 registers, updates the IPC_STS response register with the status.
+ */
+#define IPC_CMD 0x0
+#define IPC_CMD_MSI 0x100
+#define IPC_CMD_SIZE 16
+#define IPC_CMD_SUBCMD 12
+#define IPC_STATUS 0x04
+#define IPC_STATUS_IRQ 0x4
+#define IPC_STATUS_ERR 0x2
+#define IPC_STATUS_BUSY 0x1
+#define IPC_SPTR 0x08
+#define IPC_DPTR 0x0C
+#define IPC_WRITE_BUFFER 0x80
+#define IPC_READ_BUFFER 0x90
+
+/*
+ * 16-byte buffer for sending data associated with IPC command.
+ */
+#define IPC_DATA_BUFFER_SIZE 16
+
+#define IPC_LOOP_CNT 3000000
+#define IPC_MAX_SEC 3
+
+#define IPC_TRIGGER_MODE_IRQ true
+
+/* exported resources from IFWI */
+#define PLAT_RESOURCE_IPC_INDEX 0
+#define PLAT_RESOURCE_IPC_SIZE 0x1000
+#define PLAT_RESOURCE_GCR_SIZE 0x1000
+#define PLAT_RESOURCE_PUNIT_DATA_INDEX 1
+#define PLAT_RESOURCE_PUNIT_INTER_INDEX 2
+#define PLAT_RESOURCE_ACPI_IO_INDEX 0
+
+/*
+ * BIOS does not create an ACPI device for each PMC function,
+ * but exports multiple resources from one ACPI device(IPC) for
+ * multiple functions. This driver is responsible to create a
+ * platform device and to export resources for those functions.
+ */
+#define TCO_DEVICE_NAME "iTCO_wdt"
+#define SMI_EN_OFFSET 0x30
+#define SMI_EN_SIZE 4
+#define TCO_BASE_OFFSET 0x60
+#define TCO_REGS_SIZE 16
+#define PUNIT_DEVICE_NAME "intel_punit_ipc"
+
+static const int iTCO_version = 3;
+
+static struct intel_pmc_ipc_dev {
+ struct device *dev;
+ void __iomem *ipc_base;
+ bool irq_mode;
+ int irq;
+ int cmd;
+ struct completion cmd_complete;
+
+ /* The following PMC BARs share the same ACPI device with the IPC */
+ void *acpi_io_base;
+ int acpi_io_size;
+ struct platform_device *tco_dev;
+
+ /* gcr */
+ void *gcr_base;
+ int gcr_size;
+
+ /* punit */
+ void *punit_base;
+ int punit_size;
+ void *punit_base2;
+ int punit_size2;
+ struct platform_device *punit_dev;
+} ipcdev;
+
+static char *ipc_err_sources[] = {
+ [IPC_ERR_NONE] =
+ "no error",
+ [IPC_ERR_CMD_NOT_SUPPORTED] =
+ "command not supported",
+ [IPC_ERR_CMD_NOT_SERVICED] =
+ "command not serviced",
+ [IPC_ERR_UNABLE_TO_SERVICE] =
+ "unable to service",
+ [IPC_ERR_CMD_INVALID] =
+ "command invalid",
+ [IPC_ERR_CMD_FAILED] =
+ "command failed",
+ [IPC_ERR_EMSECURITY] =
+ "Invalid Battery",
+ [IPC_ERR_UNSIGNEDKERNEL] =
+ "Unsigned kernel",
+};
+
+/* Prevent concurrent calls to the PMC */
+static DEFINE_MUTEX(ipclock);
+
+static inline void ipc_send_command(u32 cmd)
+{
+ ipcdev.cmd = cmd;
+ if (ipcdev.irq_mode) {
+ reinit_completion(&ipcdev.cmd_complete);
+ cmd |= IPC_CMD_MSI;
+ }
+ writel(cmd, ipcdev.ipc_base + IPC_CMD);
+}
+
+static inline u32 ipc_read_status(void)
+{
+ return readl(ipcdev.ipc_base + IPC_STATUS);
+}
+
+static inline void ipc_data_writel(u32 data, u32 offset)
+{
+ writel(data, ipcdev.ipc_base + IPC_WRITE_BUFFER + offset);
+}
+
+static inline u8 ipc_data_readb(u32 offset)
+{
+ return readb(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
+}
+
+static inline u32 ipc_data_readl(u32 offset)
+{
+ return readl(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
+}
+
+static int intel_pmc_ipc_check_status(void)
+{
+ int status;
+ int ret = 0;
+
+ if (ipcdev.irq_mode) {
+ if (0 == wait_for_completion_timeout(
+ &ipcdev.cmd_complete, IPC_MAX_SEC * HZ))
+ ret = -ETIMEDOUT;
+ } else {
+ int loop_count = IPC_LOOP_CNT;
+
+ while ((ipc_read_status() & IPC_STATUS_BUSY) && --loop_count)
+ udelay(1);
+ if (loop_count == 0)
+ ret = -ETIMEDOUT;
+ }
+
+ status = ipc_read_status();
+ if (ret == -ETIMEDOUT) {
+ dev_err(ipcdev.dev,
+ "IPC timed out, TS=0x%x, CMD=0x%x\n",
+ status, ipcdev.cmd);
+ return ret;
+ }
+
+ if (status & IPC_STATUS_ERR) {
+ int i;
+
+ ret = -EIO;
+ i = (status >> IPC_CMD_SIZE) & 0xFF;
+ if (i < ARRAY_SIZE(ipc_err_sources))
+ dev_err(ipcdev.dev,
+ "IPC failed: %s, STS=0x%x, CMD=0x%x\n",
+ ipc_err_sources[i], status, ipcdev.cmd);
+ else
+ dev_err(ipcdev.dev,
+ "IPC failed: unknown, STS=0x%x, CMD=0x%x\n",
+ status, ipcdev.cmd);
+ if ((i == IPC_ERR_UNSIGNEDKERNEL) || (i == IPC_ERR_EMSECURITY))
+ ret = -EACCES;
+ }
+
+ return ret;
+}
+
+/*
+ * intel_pmc_ipc_simple_command
+ * @cmd: command
+ * @sub: sub type
+ */
+int intel_pmc_ipc_simple_command(int cmd, int sub)
+{
+ int ret;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.dev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+ ipc_send_command(sub << IPC_CMD_SUBCMD | cmd);
+ ret = intel_pmc_ipc_check_status();
+ mutex_unlock(&ipclock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(intel_pmc_ipc_simple_command);
+
+/*
+ * intel_pmc_ipc_raw_cmd
+ * @cmd: command
+ * @sub: sub type
+ * @in: input data
+ * @inlen: input length in bytes
+ * @out: output data
+ * @outlen: output length in dwords
+ * @sptr: data writing to SPTR register
+ * @dptr: data writing to DPTR register
+ */
+int intel_pmc_ipc_raw_cmd(u32 cmd, u32 sub, u8 *in, u32 inlen, u32 *out,
+ u32 outlen, u32 dptr, u32 sptr)
+{
+ u32 wbuf[4] = { 0 };
+ int ret;
+ int i;
+
+ if (inlen > IPC_DATA_BUFFER_SIZE || outlen > IPC_DATA_BUFFER_SIZE / 4)
+ return -EINVAL;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.dev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+ memcpy(wbuf, in, inlen);
+ writel(dptr, ipcdev.ipc_base + IPC_DPTR);
+ writel(sptr, ipcdev.ipc_base + IPC_SPTR);
+ /* The input data register is 32bit register and inlen is in Byte */
+ for (i = 0; i < ((inlen + 3) / 4); i++)
+ ipc_data_writel(wbuf[i], 4 * i);
+ ipc_send_command((inlen << IPC_CMD_SIZE) |
+ (sub << IPC_CMD_SUBCMD) | cmd);
+ ret = intel_pmc_ipc_check_status();
+ if (!ret) {
+ /* out is read from 32bit register and outlen is in 32bit */
+ for (i = 0; i < outlen; i++)
+ *out++ = ipc_data_readl(4 * i);
+ }
+ mutex_unlock(&ipclock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(intel_pmc_ipc_raw_cmd);
+
+/*
+ * intel_pmc_ipc_command
+ * @cmd: command
+ * @sub: sub type
+ * @in: input data
+ * @inlen: input length in bytes
+ * @out: output data
+ * @outlen: output length in dwords
+ */
+int intel_pmc_ipc_command(u32 cmd, u32 sub, u8 *in, u32 inlen,
+ u32 *out, u32 outlen)
+{
+ return intel_pmc_ipc_raw_cmd(cmd, sub, in, inlen, out, outlen, 0, 0);
+}
+EXPORT_SYMBOL_GPL(intel_pmc_ipc_command);
+
+static irqreturn_t ioc(int irq, void *dev_id)
+{
+ int status;
+
+ if (ipcdev.irq_mode) {
+ status = ipc_read_status();
+ writel(status | IPC_STATUS_IRQ, ipcdev.ipc_base + IPC_STATUS);
+ }
+ complete(&ipcdev.cmd_complete);
+
+ return IRQ_HANDLED;
+}
+
+static int ipc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ resource_size_t pci_resource;
+ int ret;
+ int len;
+
+ ipcdev.dev = &pci_dev_get(pdev)->dev;
+ ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
+
+ ret = pci_request_regions(pdev, "intel_pmc_ipc");
+ if (ret)
+ return ret;
+
+ pci_resource = pci_resource_start(pdev, 0);
+ len = pci_resource_len(pdev, 0);
+ if (!pci_resource || !len) {
+ dev_err(&pdev->dev, "Failed to get resource\n");
+ return -ENOMEM;
+ }
+
+ init_completion(&ipcdev.cmd_complete);
+
+ if (request_irq(pdev->irq, ioc, 0, "intel_pmc_ipc", &ipcdev)) {
+ dev_err(&pdev->dev, "Failed to request irq\n");
+ return -EBUSY;
+ }
+
+ ipcdev.ipc_base = ioremap_nocache(pci_resource, len);
+ if (!ipcdev.ipc_base) {
+ dev_err(&pdev->dev, "Failed to ioremap ipc base\n");
+ free_irq(pdev->irq, &ipcdev);
+ ret = -ENOMEM;
+ }
+
+ return ret;
+}
+
+static void ipc_pci_remove(struct pci_dev *pdev)
+{
+ free_irq(pdev->irq, &ipcdev);
+ pci_release_regions(pdev);
+ pci_dev_put(pdev);
+ iounmap(ipcdev.ipc_base);
+ ipcdev.dev = NULL;
+}
+
+static const struct pci_device_id ipc_pci_ids[] = {
+ {PCI_VDEVICE(INTEL, 0x0a94), 0},
+ {PCI_VDEVICE(INTEL, 0x1a94), 0},
+ { 0,}
+};
+MODULE_DEVICE_TABLE(pci, ipc_pci_ids);
+
+static struct pci_driver ipc_pci_driver = {
+ .name = "intel_pmc_ipc",
+ .id_table = ipc_pci_ids,
+ .probe = ipc_pci_probe,
+ .remove = ipc_pci_remove,
+};
+
+static ssize_t intel_pmc_ipc_simple_cmd_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int subcmd;
+ int cmd;
+ int ret;
+
+ ret = sscanf(buf, "%d %d", &cmd, &subcmd);
+ if (ret != 2) {
+ dev_err(dev, "Error args\n");
+ return -EINVAL;
+ }
+
+ ret = intel_pmc_ipc_simple_command(cmd, subcmd);
+ if (ret) {
+ dev_err(dev, "command %d error with %d\n", cmd, ret);
+ return ret;
+ }
+ return (ssize_t)count;
+}
+
+static ssize_t intel_pmc_ipc_northpeak_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+ int subcmd;
+ int ret;
+
+ if (kstrtoul(buf, 0, &val))
+ return -EINVAL;
+
+ if (val)
+ subcmd = 1;
+ else
+ subcmd = 0;
+ ret = intel_pmc_ipc_simple_command(PMC_IPC_NORTHPEAK_CTRL, subcmd);
+ if (ret) {
+ dev_err(dev, "command north %d error with %d\n", subcmd, ret);
+ return ret;
+ }
+ return (ssize_t)count;
+}
+
+static DEVICE_ATTR(simplecmd, S_IWUSR,
+ NULL, intel_pmc_ipc_simple_cmd_store);
+static DEVICE_ATTR(northpeak, S_IWUSR,
+ NULL, intel_pmc_ipc_northpeak_store);
+
+static struct attribute *intel_ipc_attrs[] = {
+ &dev_attr_northpeak.attr,
+ &dev_attr_simplecmd.attr,
+ NULL
+};
+
+static const struct attribute_group intel_ipc_group = {
+ .attrs = intel_ipc_attrs,
+};
+
+#define PUNIT_RESOURCE_INTER 1
+static struct resource punit_res[] = {
+ /* Punit */
+ {
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+#define TCO_RESOURCE_ACPI_IO 0
+#define TCO_RESOURCE_SMI_EN_IO 1
+#define TCO_RESOURCE_GCR_MEM 2
+static struct resource tco_res[] = {
+ /* ACPI - TCO */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* ACPI - SMI */
+ {
+ .flags = IORESOURCE_IO,
+ },
+ /* GCS */
+ {
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct lpc_ich_info tco_info = {
+ .name = "Apollo Lake SoC",
+ .iTCO_version = 3,
+};
+
+static int ipc_create_punit_device(void)
+{
+ struct platform_device *pdev;
+ struct resource *res;
+ int ret;
+
+ pdev = platform_device_alloc(PUNIT_DEVICE_NAME, -1);
+ if (!pdev) {
+ dev_err(ipcdev.dev, "Failed to alloc punit platform device\n");
+ return -ENOMEM;
+ }
+
+ pdev->dev.parent = ipcdev.dev;
+
+ res = punit_res;
+ res->start = (resource_size_t)ipcdev.punit_base;
+ res->end = res->start + ipcdev.punit_size - 1;
+
+ res = punit_res + PUNIT_RESOURCE_INTER;
+ res->start = (resource_size_t)ipcdev.punit_base2;
+ res->end = res->start + ipcdev.punit_size2 - 1;
+
+ ret = platform_device_add_resources(pdev, punit_res,
+ ARRAY_SIZE(punit_res));
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add platform punit resources\n");
+ goto err;
+ }
+
+ ret = platform_device_add(pdev);
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add punit platform device\n");
+ goto err;
+ }
+ ipcdev.punit_dev = pdev;
+
+ return 0;
+err:
+ platform_device_put(pdev);
+ return ret;
+}
+
+static int ipc_create_tco_device(void)
+{
+ struct platform_device *pdev;
+ struct resource *res;
+ int ret;
+
+ pdev = platform_device_alloc(TCO_DEVICE_NAME, -1);
+ if (!pdev) {
+ dev_err(ipcdev.dev, "Failed to alloc tco platform device\n");
+ return -ENOMEM;
+ }
+
+ pdev->dev.parent = ipcdev.dev;
+
+ res = tco_res + TCO_RESOURCE_ACPI_IO;
+ res->start = (resource_size_t)ipcdev.acpi_io_base + TCO_BASE_OFFSET;
+ res->end = res->start + TCO_REGS_SIZE - 1;
+
+ res = tco_res + TCO_RESOURCE_SMI_EN_IO;
+ res->start = (resource_size_t)ipcdev.acpi_io_base + SMI_EN_OFFSET;
+ res->end = res->start + SMI_EN_SIZE - 1;
+
+ res = tco_res + TCO_RESOURCE_GCR_MEM;
+ res->start = (resource_size_t)ipcdev.gcr_base;
+ res->end = res->start + ipcdev.gcr_size - 1;
+
+ ret = platform_device_add_resources(pdev, tco_res, ARRAY_SIZE(tco_res));
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add tco platform resources\n");
+ goto err;
+ }
+
+ ret = platform_device_add_data(pdev, &tco_info,
+ sizeof(struct lpc_ich_info));
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add tco platform data\n");
+ goto err;
+ }
+
+ ret = platform_device_add(pdev);
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add tco platform device\n");
+ goto err;
+ }
+ ipcdev.tco_dev = pdev;
+
+ return 0;
+err:
+ platform_device_put(pdev);
+ return ret;
+}
+
+static int ipc_create_pmc_devices(void)
+{
+ int ret;
+
+ ret = ipc_create_tco_device();
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add tco platform device\n");
+ return ret;
+ }
+ ret = ipc_create_punit_device();
+ if (ret) {
+ dev_err(ipcdev.dev, "Failed to add punit platform device\n");
+ platform_device_unregister(ipcdev.tco_dev);
+ }
+ return ret;
+}
+
+static int ipc_plat_get_res(struct platform_device *pdev)
+{
+ struct resource *res;
+ void __iomem *addr;
+ int size;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO,
+ PLAT_RESOURCE_ACPI_IO_INDEX);
+ if (!res) {
+ dev_err(&pdev->dev, "Failed to get io resource\n");
+ return -ENXIO;
+ }
+ size = resource_size(res);
+ ipcdev.acpi_io_base = (void *)res->start;
+ ipcdev.acpi_io_size = size;
+ dev_info(&pdev->dev, "io res: %llx %x\n",
+ (long long)res->start, (int)resource_size(res));
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ PLAT_RESOURCE_PUNIT_DATA_INDEX);
+ if (!res) {
+ dev_err(&pdev->dev, "Failed to get punit resource\n");
+ return -ENXIO;
+ }
+ size = resource_size(res);
+ ipcdev.punit_base = (void *)res->start;
+ ipcdev.punit_size = size;
+ dev_info(&pdev->dev, "punit data res: %llx %x\n",
+ (long long)res->start, (int)resource_size(res));
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ PLAT_RESOURCE_PUNIT_INTER_INDEX);
+ if (!res) {
+ dev_err(&pdev->dev, "Failed to get punit inter resource\n");
+ return -ENXIO;
+ }
+ size = resource_size(res);
+ ipcdev.punit_base2 = (void *)res->start;
+ ipcdev.punit_size2 = size;
+ dev_info(&pdev->dev, "punit interface res: %llx %x\n",
+ (long long)res->start, (int)resource_size(res));
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ PLAT_RESOURCE_IPC_INDEX);
+ if (!res) {
+ dev_err(&pdev->dev, "Failed to get ipc resource\n");
+ return -ENXIO;
+ }
+ size = PLAT_RESOURCE_IPC_SIZE;
+ if (!request_mem_region(res->start, size, pdev->name)) {
+ dev_err(&pdev->dev, "Failed to request ipc resource\n");
+ return -EBUSY;
+ }
+ addr = ioremap_nocache(res->start, size);
+ if (!addr) {
+ dev_err(&pdev->dev, "I/O memory remapping failed\n");
+ release_mem_region(res->start, size);
+ return -ENOMEM;
+ }
+ ipcdev.ipc_base = addr;
+
+ ipcdev.gcr_base = (void *)(res->start + size);
+ ipcdev.gcr_size = PLAT_RESOURCE_GCR_SIZE;
+ dev_info(&pdev->dev, "ipc res: %llx %x\n",
+ (long long)res->start, (int)resource_size(res));
+
+ return 0;
+}
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ipc_acpi_ids[] = {
+ { "INT34D2", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, ipc_acpi_ids);
+#endif
+
+static int ipc_plat_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret;
+
+ ipcdev.dev = &pdev->dev;
+ ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ;
+ init_completion(&ipcdev.cmd_complete);
+
+ ipcdev.irq = platform_get_irq(pdev, 0);
+ if (ipcdev.irq < 0) {
+ dev_err(&pdev->dev, "Failed to get irq\n");
+ return -EINVAL;
+ }
+
+ ret = ipc_plat_get_res(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to request resource\n");
+ return ret;
+ }
+
+ ret = ipc_create_pmc_devices();
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to create pmc devices\n");
+ goto err_device;
+ }
+
+ if (request_irq(ipcdev.irq, ioc, 0, "intel_pmc_ipc", &ipcdev)) {
+ dev_err(&pdev->dev, "Failed to request irq\n");
+ ret = -EBUSY;
+ goto err_irq;
+ }
+
+ ret = sysfs_create_group(&pdev->dev.kobj, &intel_ipc_group);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to create sysfs group %d\n",
+ ret);
+ goto err_sys;
+ }
+
+ return 0;
+err_sys:
+ free_irq(ipcdev.irq, &ipcdev);
+err_irq:
+ platform_device_unregister(ipcdev.tco_dev);
+ platform_device_unregister(ipcdev.punit_dev);
+err_device:
+ iounmap(ipcdev.ipc_base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ PLAT_RESOURCE_IPC_INDEX);
+ if (res)
+ release_mem_region(res->start, PLAT_RESOURCE_IPC_SIZE);
+ return ret;
+}
+
+static int ipc_plat_remove(struct platform_device *pdev)
+{
+ struct resource *res;
+
+ sysfs_remove_group(&pdev->dev.kobj, &intel_ipc_group);
+ free_irq(ipcdev.irq, &ipcdev);
+ platform_device_unregister(ipcdev.tco_dev);
+ platform_device_unregister(ipcdev.punit_dev);
+ iounmap(ipcdev.ipc_base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ PLAT_RESOURCE_IPC_INDEX);
+ if (res)
+ release_mem_region(res->start, PLAT_RESOURCE_IPC_SIZE);
+ ipcdev.dev = NULL;
+ return 0;
+}
+
+static struct platform_driver ipc_plat_driver = {
+ .remove = ipc_plat_remove,
+ .probe = ipc_plat_probe,
+ .driver = {
+ .name = "pmc-ipc-plat",
+ .acpi_match_table = ACPI_PTR(ipc_acpi_ids),
+ },
+};
+
+static int __init intel_pmc_ipc_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&ipc_plat_driver);
+ if (ret) {
+ pr_err("Failed to register PMC ipc platform driver\n");
+ return ret;
+ }
+ ret = pci_register_driver(&ipc_pci_driver);
+ if (ret) {
+ pr_err("Failed to register PMC ipc pci driver\n");
+ platform_driver_unregister(&ipc_plat_driver);
+ return ret;
+ }
+ return ret;
+}
+
+static void __exit intel_pmc_ipc_exit(void)
+{
+ pci_unregister_driver(&ipc_pci_driver);
+ platform_driver_unregister(&ipc_plat_driver);
+}
+
+MODULE_AUTHOR("Zha Qipeng <qipeng.zha@intel.com>");
+MODULE_DESCRIPTION("Intel PMC IPC driver");
+MODULE_LICENSE("GPL");
+
+/* Some modules are dependent on this, so init earlier */
+fs_initcall(intel_pmc_ipc_init);
+module_exit(intel_pmc_ipc_exit);
diff --git a/drivers/platform/x86/tc1100-wmi.c b/drivers/platform/x86/tc1100-wmi.c
index e365425..89aa976 100644
--- a/drivers/platform/x86/tc1100-wmi.c
+++ b/drivers/platform/x86/tc1100-wmi.c
@@ -82,7 +82,7 @@
tmp = 0;
}
- if (result.length > 0 && result.pointer)
+ if (result.length > 0)
kfree(result.pointer);
switch (instance) {
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 515f338..49c1720 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -7,7 +7,6 @@
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
-#include <linux/acpi.h>
#include <linux/pnp.h>
#include <linux/device.h>
#include <linux/init.h>
@@ -23,41 +22,25 @@
{"", 0}
};
-#ifdef CONFIG_ACPI
-static bool __reserve_range(u64 start, unsigned int length, bool io, char *desc)
-{
- u8 space_id = io ? ACPI_ADR_SPACE_SYSTEM_IO : ACPI_ADR_SPACE_SYSTEM_MEMORY;
- return !acpi_reserve_region(start, length, space_id, IORESOURCE_BUSY, desc);
-}
-#else
-static bool __reserve_range(u64 start, unsigned int length, bool io, char *desc)
-{
- struct resource *res;
-
- res = io ? request_region(start, length, desc) :
- request_mem_region(start, length, desc);
- if (res) {
- res->flags &= ~IORESOURCE_BUSY;
- return true;
- }
- return false;
-}
-#endif
-
static void reserve_range(struct pnp_dev *dev, struct resource *r, int port)
{
char *regionid;
const char *pnpid = dev_name(&dev->dev);
resource_size_t start = r->start, end = r->end;
- bool reserved;
+ struct resource *res;
regionid = kmalloc(16, GFP_KERNEL);
if (!regionid)
return;
snprintf(regionid, 16, "pnp %s", pnpid);
- reserved = __reserve_range(start, end - start + 1, !!port, regionid);
- if (!reserved)
+ if (port)
+ res = request_region(start, end - start + 1, regionid);
+ else
+ res = request_mem_region(start, end - start + 1, regionid);
+ if (res)
+ res->flags &= ~IORESOURCE_BUSY;
+ else
kfree(regionid);
/*
@@ -66,7 +49,7 @@
* have double reservations.
*/
dev_info(&dev->dev, "%pR %s reserved\n", r,
- reserved ? "has been" : "could not be");
+ res ? "has been" : "could not be");
}
static void reserve_resources_of_dev(struct pnp_dev *dev)
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 5e343ba..28c711f 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -41,6 +41,19 @@
This can be either built-in or a loadable module.
If unsure say N.
+config WKUP_M3_RPROC
+ tristate "AMx3xx Wakeup M3 remoteproc support"
+ depends on SOC_AM33XX || SOC_AM43XX
+ select REMOTEPROC
+ help
+ Say y here to support Wakeup M3 remote processor on TI AM33xx
+ and AM43xx family of SoCs.
+
+ Required for Suspend-to-RAM on AM33xx and AM43xx SoCs. Also needed
+ for deep CPUIdle states on AM33xx SoCs. Allows for loading of the
+ firmware onto these remote processors.
+ If unsure say N.
+
config DA8XX_REMOTEPROC
tristate "DA8xx/OMAP-L13x remoteproc support"
depends on ARCH_DAVINCI_DA8XX
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index ac2ff75..81b04d1 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -9,4 +9,5 @@
remoteproc-y += remoteproc_elf_loader.o
obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o
obj-$(CONFIG_STE_MODEM_RPROC) += ste_modem_rproc.o
+obj-$(CONFIG_WKUP_M3_RPROC) += wkup_m3_rproc.o
obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c
index f8d6a06..009e56f 100644
--- a/drivers/remoteproc/da8xx_remoteproc.c
+++ b/drivers/remoteproc/da8xx_remoteproc.c
@@ -26,8 +26,7 @@
static char *da8xx_fw_name;
module_param(da8xx_fw_name, charp, S_IRUGO);
MODULE_PARM_DESC(da8xx_fw_name,
- "\n\t\tName of DSP firmware file in /lib/firmware"
- " (if not specified defaults to 'rproc-dsp-fw')");
+ "Name of DSP firmware file in /lib/firmware (if not specified defaults to 'rproc-dsp-fw')");
/*
* OMAP-L138 Technical References:
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 11cdb11..8b3130f 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -44,6 +44,9 @@
#include "remoteproc_internal.h"
+static DEFINE_MUTEX(rproc_list_mutex);
+static LIST_HEAD(rproc_list);
+
typedef int (*rproc_handle_resources_t)(struct rproc *rproc,
struct resource_table *table, int len);
typedef int (*rproc_handle_resource_t)(struct rproc *rproc,
@@ -132,32 +135,48 @@
iommu_detach_device(domain, dev);
iommu_domain_free(domain);
-
- return;
}
-/*
+/**
+ * rproc_da_to_va() - lookup the kernel virtual address for a remoteproc address
+ * @rproc: handle of a remote processor
+ * @da: remoteproc device address to translate
+ * @len: length of the memory region @da is pointing to
+ *
* Some remote processors will ask us to allocate them physically contiguous
* memory regions (which we call "carveouts"), and map them to specific
- * device addresses (which are hardcoded in the firmware).
+ * device addresses (which are hardcoded in the firmware). They may also have
+ * dedicated memory regions internal to the processors, and use them either
+ * exclusively or alongside carveouts.
*
* They may then ask us to copy objects into specific device addresses (e.g.
* code/data sections) or expose us certain symbols in other device address
* (e.g. their trace buffer).
*
- * This function is an internal helper with which we can go over the allocated
- * carveouts and translate specific device address to kernel virtual addresses
- * so we can access the referenced memory.
+ * This function is a helper function with which we can go over the allocated
+ * carveouts and translate specific device addresses to kernel virtual addresses
+ * so we can access the referenced memory. This function also allows to perform
+ * translations on the internal remoteproc memory regions through a platform
+ * implementation specific da_to_va ops, if present.
+ *
+ * The function returns a valid kernel address on success or NULL on failure.
*
* Note: phys_to_virt(iommu_iova_to_phys(rproc->domain, da)) will work too,
* but only on kernel direct mapped RAM memory. Instead, we're just using
- * here the output of the DMA API, which should be more correct.
+ * here the output of the DMA API for the carveouts, which should be more
+ * correct.
*/
void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
{
struct rproc_mem_entry *carveout;
void *ptr = NULL;
+ if (rproc->ops->da_to_va) {
+ ptr = rproc->ops->da_to_va(rproc, da, len);
+ if (ptr)
+ goto out;
+ }
+
list_for_each_entry(carveout, &rproc->carveouts, node) {
int offset = da - carveout->da;
@@ -174,6 +193,7 @@
break;
}
+out:
return ptr;
}
EXPORT_SYMBOL(rproc_da_to_va);
@@ -411,10 +431,8 @@
}
trace = kzalloc(sizeof(*trace), GFP_KERNEL);
- if (!trace) {
- dev_err(dev, "kzalloc trace failed\n");
+ if (!trace)
return -ENOMEM;
- }
/* set the trace buffer dma properties */
trace->len = rsc->len;
@@ -489,10 +507,8 @@
}
mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
- if (!mapping) {
- dev_err(dev, "kzalloc mapping failed\n");
+ if (!mapping)
return -ENOMEM;
- }
ret = iommu_map(rproc->domain, rsc->da, rsc->pa, rsc->len, rsc->flags);
if (ret) {
@@ -565,10 +581,8 @@
rsc->da, rsc->pa, rsc->len, rsc->flags);
carveout = kzalloc(sizeof(*carveout), GFP_KERNEL);
- if (!carveout) {
- dev_err(dev, "kzalloc carveout failed\n");
+ if (!carveout)
return -ENOMEM;
- }
va = dma_alloc_coherent(dev->parent, rsc->len, &dma, GFP_KERNEL);
if (!va) {
@@ -768,7 +782,8 @@
/* clean up carveout allocations */
list_for_each_entry_safe(entry, tmp, &rproc->carveouts, node) {
- dma_free_coherent(dev->parent, entry->len, entry->va, entry->dma);
+ dma_free_coherent(dev->parent, entry->len, entry->va,
+ entry->dma);
list_del(&entry->node);
kfree(entry);
}
@@ -808,9 +823,8 @@
/* look for the resource table */
table = rproc_find_rsc_table(rproc, fw, &tablesz);
- if (!table) {
+ if (!table)
goto clean_up;
- }
/* Verify that resource table in loaded fw is unchanged */
if (rproc->table_csum != crc32(0, table, tablesz)) {
@@ -911,7 +925,8 @@
/* count the number of notify-ids */
rproc->max_notifyid = -1;
- ret = rproc_handle_resources(rproc, tablesz, rproc_count_vrings_handler);
+ ret = rproc_handle_resources(rproc, tablesz,
+ rproc_count_vrings_handler);
if (ret)
goto out;
@@ -1152,6 +1167,50 @@
EXPORT_SYMBOL(rproc_shutdown);
/**
+ * rproc_get_by_phandle() - find a remote processor by phandle
+ * @phandle: phandle to the rproc
+ *
+ * Finds an rproc handle using the remote processor's phandle, and then
+ * return a handle to the rproc.
+ *
+ * This function increments the remote processor's refcount, so always
+ * use rproc_put() to decrement it back once rproc isn't needed anymore.
+ *
+ * Returns the rproc handle on success, and NULL on failure.
+ */
+#ifdef CONFIG_OF
+struct rproc *rproc_get_by_phandle(phandle phandle)
+{
+ struct rproc *rproc = NULL, *r;
+ struct device_node *np;
+
+ np = of_find_node_by_phandle(phandle);
+ if (!np)
+ return NULL;
+
+ mutex_lock(&rproc_list_mutex);
+ list_for_each_entry(r, &rproc_list, node) {
+ if (r->dev.parent && r->dev.parent->of_node == np) {
+ rproc = r;
+ get_device(&rproc->dev);
+ break;
+ }
+ }
+ mutex_unlock(&rproc_list_mutex);
+
+ of_node_put(np);
+
+ return rproc;
+}
+#else
+struct rproc *rproc_get_by_phandle(phandle phandle)
+{
+ return NULL;
+}
+#endif
+EXPORT_SYMBOL(rproc_get_by_phandle);
+
+/**
* rproc_add() - register a remote processor
* @rproc: the remote processor handle to register
*
@@ -1180,6 +1239,11 @@
if (ret < 0)
return ret;
+ /* expose to rproc_get_by_phandle users */
+ mutex_lock(&rproc_list_mutex);
+ list_add(&rproc->node, &rproc_list);
+ mutex_unlock(&rproc_list_mutex);
+
dev_info(dev, "%s is available\n", rproc->name);
dev_info(dev, "Note: remoteproc is still under development and considered experimental.\n");
@@ -1268,10 +1332,8 @@
name_len = strlen(name) + strlen(template) - 2 + 1;
rproc = kzalloc(sizeof(struct rproc) + len + name_len, GFP_KERNEL);
- if (!rproc) {
- dev_err(dev, "%s: kzalloc failed\n", __func__);
+ if (!rproc)
return NULL;
- }
if (!firmware) {
p = (char *)rproc + sizeof(struct rproc) + len;
@@ -1369,6 +1431,11 @@
/* Free the copy of the resource table */
kfree(rproc->cached_table);
+ /* the rproc is downref'ed as soon as it's removed from the klist */
+ mutex_lock(&rproc_list_mutex);
+ list_del(&rproc->node);
+ mutex_unlock(&rproc_list_mutex);
+
device_del(&rproc->dev);
return 0;
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index 70701a5..8041b95 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -35,7 +35,7 @@
* @get_boot_addr: get boot address to entry point specified in firmware
*/
struct rproc_fw_ops {
- struct resource_table *(*find_rsc_table) (struct rproc *rproc,
+ struct resource_table *(*find_rsc_table)(struct rproc *rproc,
const struct firmware *fw,
int *tablesz);
struct resource_table *(*find_loaded_rsc_table)(struct rproc *rproc,
diff --git a/drivers/remoteproc/ste_modem_rproc.c b/drivers/remoteproc/ste_modem_rproc.c
index dd193f3..53dc17b 100644
--- a/drivers/remoteproc/ste_modem_rproc.c
+++ b/drivers/remoteproc/ste_modem_rproc.c
@@ -67,8 +67,7 @@
static const struct ste_toc_entry *sproc_find_rsc_entry(const void *data)
{
int i;
- const struct ste_toc *toc;
- toc = data;
+ const struct ste_toc *toc = data;
/* Search the table for the resource table */
for (i = 0; i < SPROC_MAX_TOC_ENTRIES &&
@@ -230,6 +229,7 @@
static int sproc_stop(struct rproc *rproc)
{
struct sproc *sproc = rproc->priv;
+
sproc_dbg(sproc, "stop ste-modem\n");
return sproc->mdev->ops.power(sproc->mdev, false);
diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
new file mode 100644
index 0000000..edf8181
--- /dev/null
+++ b/drivers/remoteproc/wkup_m3_rproc.c
@@ -0,0 +1,257 @@
+/*
+ * TI AMx3 Wakeup M3 Remote Processor driver
+ *
+ * Copyright (C) 2014-2015 Texas Instruments, Inc.
+ *
+ * Dave Gerlach <d-gerlach@ti.com>
+ * Suman Anna <s-anna@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/remoteproc.h>
+
+#include <linux/platform_data/wkup_m3.h>
+
+#include "remoteproc_internal.h"
+
+#define WKUPM3_MEM_MAX 2
+
+/**
+ * struct wkup_m3_mem - WkupM3 internal memory structure
+ * @cpu_addr: MPU virtual address of the memory region
+ * @bus_addr: Bus address used to access the memory region
+ * @dev_addr: Device address from Wakeup M3 view
+ * @size: Size of the memory region
+ */
+struct wkup_m3_mem {
+ void __iomem *cpu_addr;
+ phys_addr_t bus_addr;
+ u32 dev_addr;
+ size_t size;
+};
+
+/**
+ * struct wkup_m3_rproc - WkupM3 remote processor state
+ * @rproc: rproc handle
+ * @pdev: pointer to platform device
+ * @mem: WkupM3 memory information
+ */
+struct wkup_m3_rproc {
+ struct rproc *rproc;
+ struct platform_device *pdev;
+ struct wkup_m3_mem mem[WKUPM3_MEM_MAX];
+};
+
+static int wkup_m3_rproc_start(struct rproc *rproc)
+{
+ struct wkup_m3_rproc *wkupm3 = rproc->priv;
+ struct platform_device *pdev = wkupm3->pdev;
+ struct device *dev = &pdev->dev;
+ struct wkup_m3_platform_data *pdata = dev_get_platdata(dev);
+
+ if (pdata->deassert_reset(pdev, pdata->reset_name)) {
+ dev_err(dev, "Unable to reset wkup_m3!\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int wkup_m3_rproc_stop(struct rproc *rproc)
+{
+ struct wkup_m3_rproc *wkupm3 = rproc->priv;
+ struct platform_device *pdev = wkupm3->pdev;
+ struct device *dev = &pdev->dev;
+ struct wkup_m3_platform_data *pdata = dev_get_platdata(dev);
+
+ if (pdata->assert_reset(pdev, pdata->reset_name)) {
+ dev_err(dev, "Unable to assert reset of wkup_m3!\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+{
+ struct wkup_m3_rproc *wkupm3 = rproc->priv;
+ void *va = NULL;
+ int i;
+ u32 offset;
+
+ if (len <= 0)
+ return NULL;
+
+ for (i = 0; i < WKUPM3_MEM_MAX; i++) {
+ if (da >= wkupm3->mem[i].dev_addr && da + len <=
+ wkupm3->mem[i].dev_addr + wkupm3->mem[i].size) {
+ offset = da - wkupm3->mem[i].dev_addr;
+ /* __force to make sparse happy with type conversion */
+ va = (__force void *)(wkupm3->mem[i].cpu_addr + offset);
+ break;
+ }
+ }
+
+ return va;
+}
+
+static struct rproc_ops wkup_m3_rproc_ops = {
+ .start = wkup_m3_rproc_start,
+ .stop = wkup_m3_rproc_stop,
+ .da_to_va = wkup_m3_rproc_da_to_va,
+};
+
+static const struct of_device_id wkup_m3_rproc_of_match[] = {
+ { .compatible = "ti,am3352-wkup-m3", },
+ { .compatible = "ti,am4372-wkup-m3", },
+ {},
+};
+
+static int wkup_m3_rproc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct wkup_m3_platform_data *pdata = dev->platform_data;
+ /* umem always needs to be processed first */
+ const char *mem_names[WKUPM3_MEM_MAX] = { "umem", "dmem" };
+ struct wkup_m3_rproc *wkupm3;
+ const char *fw_name;
+ struct rproc *rproc;
+ struct resource *res;
+ const __be32 *addrp;
+ u32 l4_offset = 0;
+ u64 size;
+ int ret;
+ int i;
+
+ if (!(pdata && pdata->deassert_reset && pdata->assert_reset &&
+ pdata->reset_name)) {
+ dev_err(dev, "Platform data missing!\n");
+ return -ENODEV;
+ }
+
+ ret = of_property_read_string(dev->of_node, "ti,pm-firmware",
+ &fw_name);
+ if (ret) {
+ dev_err(dev, "No firmware filename given\n");
+ return -ENODEV;
+ }
+
+ pm_runtime_enable(&pdev->dev);
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n");
+ goto err;
+ }
+
+ rproc = rproc_alloc(dev, "wkup_m3", &wkup_m3_rproc_ops,
+ fw_name, sizeof(*wkupm3));
+ if (!rproc) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ wkupm3 = rproc->priv;
+ wkupm3->rproc = rproc;
+ wkupm3->pdev = pdev;
+
+ for (i = 0; i < ARRAY_SIZE(mem_names); i++) {
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ mem_names[i]);
+ wkupm3->mem[i].cpu_addr = devm_ioremap_resource(dev, res);
+ if (IS_ERR(wkupm3->mem[i].cpu_addr)) {
+ dev_err(&pdev->dev, "devm_ioremap_resource failed for resource %d\n",
+ i);
+ ret = PTR_ERR(wkupm3->mem[i].cpu_addr);
+ goto err;
+ }
+ wkupm3->mem[i].bus_addr = res->start;
+ wkupm3->mem[i].size = resource_size(res);
+ addrp = of_get_address(dev->of_node, i, &size, NULL);
+ /*
+ * The wkupm3 has umem at address 0 in its view, so the device
+ * addresses for each memory region is computed as a relative
+ * offset of the bus address for umem, and therefore needs to be
+ * processed first.
+ */
+ if (!strcmp(mem_names[i], "umem"))
+ l4_offset = be32_to_cpu(*addrp);
+ wkupm3->mem[i].dev_addr = be32_to_cpu(*addrp) - l4_offset;
+ }
+
+ dev_set_drvdata(dev, rproc);
+
+ ret = rproc_add(rproc);
+ if (ret) {
+ dev_err(dev, "rproc_add failed\n");
+ goto err_put_rproc;
+ }
+
+ return 0;
+
+err_put_rproc:
+ rproc_put(rproc);
+err:
+ pm_runtime_put_noidle(dev);
+ pm_runtime_disable(dev);
+ return ret;
+}
+
+static int wkup_m3_rproc_remove(struct platform_device *pdev)
+{
+ struct rproc *rproc = platform_get_drvdata(pdev);
+
+ rproc_del(rproc);
+ rproc_put(rproc);
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wkup_m3_rpm_suspend(struct device *dev)
+{
+ return -EBUSY;
+}
+
+static int wkup_m3_rpm_resume(struct device *dev)
+{
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops wkup_m3_rproc_pm_ops = {
+ SET_RUNTIME_PM_OPS(wkup_m3_rpm_suspend, wkup_m3_rpm_resume, NULL)
+};
+
+static struct platform_driver wkup_m3_rproc_driver = {
+ .probe = wkup_m3_rproc_probe,
+ .remove = wkup_m3_rproc_remove,
+ .driver = {
+ .name = "wkup_m3_rproc",
+ .of_match_table = wkup_m3_rproc_of_match,
+ .pm = &wkup_m3_rproc_pm_ops,
+ },
+};
+
+module_platform_driver(wkup_m3_rproc_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("TI Wakeup M3 remote processor control driver");
+MODULE_AUTHOR("Dave Gerlach <d-gerlach@ti.com>");
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index 6f1fa177..f8d8fdb 100644
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -65,6 +65,7 @@
bool is_thinint;
bool going_away;
bool device_lost;
+ unsigned int config_ready;
void *airq_info;
};
@@ -833,8 +834,11 @@
if (ret)
goto out_free;
- memcpy(vcdev->config, config_area, sizeof(vcdev->config));
- memcpy(buf, &vcdev->config[offset], len);
+ memcpy(vcdev->config, config_area, offset + len);
+ if (buf)
+ memcpy(buf, &vcdev->config[offset], len);
+ if (vcdev->config_ready < offset + len)
+ vcdev->config_ready = offset + len;
out_free:
kfree(config_area);
@@ -857,6 +861,9 @@
if (!config_area)
goto out_free;
+ /* Make sure we don't overwrite fields. */
+ if (vcdev->config_ready < offset)
+ virtio_ccw_get_config(vdev, 0, NULL, offset);
memcpy(&vcdev->config[offset], buf, len);
/* Write the config area to the host. */
memcpy(config_area, vcdev->config, sizeof(vcdev->config));
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 4a484d6..b749026 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1191,7 +1191,7 @@
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
struct qla_tgt_cmd *cmd =
container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
- if (cmd->tag == abts->exchange_addr_to_abort) {
+ if (se_cmd->tag == abts->exchange_addr_to_abort) {
lun = cmd->unpacked_lun;
found_lun = true;
break;
@@ -1728,9 +1728,8 @@
if (unlikely(cmd->aborted)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
- "qla_target(%d): terminating exchange "
- "for aborted cmd=%p (se_cmd=%p, tag=%d)", vha->vp_idx, cmd,
- se_cmd, cmd->tag);
+ "qla_target(%d): terminating exchange for aborted cmd=%p (se_cmd=%p, tag=%lld)",
+ vha->vp_idx, cmd, se_cmd, se_cmd->tag);
cmd->state = QLA_TGT_STATE_ABORTED;
cmd->cmd_flags |= BIT_6;
@@ -1765,18 +1764,17 @@
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c,
- "Residual underflow: %d (tag %d, "
- "op %x, bufflen %d, rq_result %x)\n", prm->residual,
- cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->bufflen, prm->rq_result);
+ "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
+ prm->residual, se_cmd->tag,
+ se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
+ cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_UNDER;
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io, vha, 0x305d,
- "Residual overflow: %d (tag %d, "
- "op %x, bufflen %d, rq_result %x)\n", prm->residual,
- cmd->tag, se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->bufflen, prm->rq_result);
+ "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
+ prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
+ se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_OVER;
}
@@ -1849,7 +1847,7 @@
== 50) {
*xmit_type &= ~QLA_TGT_XMIT_STATUS;
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf015,
- "Dropping cmd %p (tag %d) status", cmd, cmd->tag);
+ "Dropping cmd %p (tag %d) status", cmd, se_cmd->tag);
}
#endif
/*
@@ -1873,7 +1871,7 @@
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf016,
"Cutting cmd %p (tag %d) buffer"
" tail to len %d, sg_cnt %d (cmd->bufflen %d,"
- " cmd->sg_cnt %d)", cmd, cmd->tag, tot_len, leave,
+ " cmd->sg_cnt %d)", cmd, se_cmd->tag, tot_len, leave,
cmd->bufflen, cmd->sg_cnt);
cmd->bufflen = tot_len;
@@ -1885,13 +1883,13 @@
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf017,
"Cutting cmd %p (tag %d) buffer head "
- "to offset %d (cmd->bufflen %d)", cmd, cmd->tag, offset,
+ "to offset %d (cmd->bufflen %d)", cmd, se_cmd->tag, offset,
cmd->bufflen);
if (offset == 0)
*xmit_type &= ~QLA_TGT_XMIT_DATA;
else if (qlt_set_data_offset(cmd, offset)) {
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xf018,
- "qlt_set_data_offset() failed (tag %d)", cmd->tag);
+ "qlt_set_data_offset() failed (tag %d)", se_cmd->tag);
}
}
}
@@ -3194,7 +3192,7 @@
return;
} else if (cmd->state == QLA_TGT_STATE_ABORTED) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
- "Aborted command %p (tag %d) finished\n", cmd, cmd->tag);
+ "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
"qla_target(%d): A command in state (%d) should "
@@ -3266,7 +3264,7 @@
goto out_term;
cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
- cmd->tag = atio->u.isp24.exchange_addr;
+ cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
cmd->unpacked_lun = scsilun_to_int(
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
@@ -3893,9 +3891,8 @@
resp = 1;
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf064,
- "qla_target(%d): SRR for in data for cmd "
- "without them (tag %d, SCSI status %d), "
- "reject", vha->vp_idx, cmd->tag,
+ "qla_target(%d): SRR for in data for cmd without them (tag %lld, SCSI status %d), reject",
+ vha->vp_idx, se_cmd->tag,
cmd->se_cmd.scsi_status);
goto out_reject;
}
@@ -3929,10 +3926,8 @@
}
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf066,
- "qla_target(%d): SRR for out data for cmd "
- "without them (tag %d, SCSI status %d), "
- "reject", vha->vp_idx, cmd->tag,
- cmd->se_cmd.scsi_status);
+ "qla_target(%d): SRR for out data for cmd without them (tag %lld, SCSI status %d), reject",
+ vha->vp_idx, se_cmd->tag, cmd->se_cmd.scsi_status);
goto out_reject;
}
break;
@@ -4053,10 +4048,9 @@
cmd->sg = se_cmd->t_data_sg;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02c,
- "SRR cmd %p (se_cmd %p, tag %d, op %x), "
- "sg_cnt=%d, offset=%d", cmd, &cmd->se_cmd, cmd->tag,
- se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
- cmd->sg_cnt, cmd->offset);
+ "SRR cmd %p (se_cmd %p, tag %lld, op %x), sg_cnt=%d, offset=%d",
+ cmd, &cmd->se_cmd, se_cmd->tag, se_cmd->t_task_cdb ?
+ se_cmd->t_task_cdb[0] : 0, cmd->sg_cnt, cmd->offset);
qlt_handle_srr(vha, sctio, imm);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 3320867..985d76d 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -924,7 +924,6 @@
int sg_cnt; /* SG segments count */
int bufflen; /* cmd buffer length */
int offset;
- uint32_t tag;
uint32_t unpacked_lun;
enum dma_data_direction dma_data_direction;
uint32_t reset_count;
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index e32d24e..d9a8c60 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -44,7 +44,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "qla_def.h"
@@ -54,9 +53,6 @@
static struct workqueue_struct *tcm_qla2xxx_free_wq;
static struct workqueue_struct *tcm_qla2xxx_cmd_wq;
-static const struct target_core_fabric_ops tcm_qla2xxx_ops;
-static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops;
-
/*
* Parse WWN.
* If strict, we require lower-case hex and colon separators to be sure
@@ -191,23 +187,6 @@
return "qla2xxx_npiv";
}
-static u8 tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- u8 proto_id;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- proto_id = fc_get_fabric_proto_ident(se_tpg);
- break;
- }
-
- return proto_id;
-}
-
static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -224,78 +203,6 @@
return tpg->lport_tpgt;
}
-static u32 tcm_qla2xxx_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 tcm_qla2xxx_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- int ret = 0;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- break;
- }
-
- return ret;
-}
-
-static u32 tcm_qla2xxx_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- int ret = 0;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- break;
- }
-
- return ret;
-}
-
-static char *tcm_qla2xxx_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
- struct tcm_qla2xxx_tpg, se_tpg);
- struct tcm_qla2xxx_lport *lport = tpg->lport;
- char *tid = NULL;
-
- switch (lport->lport_proto_id) {
- case SCSI_PROTOCOL_FCP:
- default:
- tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- break;
- }
-
- return tid;
-}
-
static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -344,29 +251,6 @@
return tpg->tpg_attrib.fabric_prot_type;
}
-static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
-{
- struct tcm_qla2xxx_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct tcm_qla2xxx_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct tcm_qla2xxx_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void tcm_qla2xxx_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
- struct tcm_qla2xxx_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@@ -430,7 +314,7 @@
cmd->cmd_flags |= BIT_14;
}
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
@@ -534,19 +418,6 @@
return;
}
-static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
-{
- struct qla_tgt_cmd *cmd;
-
- /* check for task mgmt cmd */
- if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
- return 0xffffffff;
-
- cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
-
- return cmd->tag;
-}
-
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -827,17 +698,6 @@
qlt_unreg_sess(se_sess->fabric_sess_ptr);
}
-static void tcm_qla2xxx_put_session(struct se_session *se_sess)
-{
- struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr;
- struct qla_hw_data *ha = sess->vha->hw;
- unsigned long flags;
-
- spin_lock_irqsave(&ha->hardware_lock, flags);
- kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
-}
-
static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess)
{
if (!sess)
@@ -853,53 +713,20 @@
target_sess_cmd_list_set_waiting(sess->se_sess);
}
-static struct se_node_acl *tcm_qla2xxx_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
+ const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct tcm_qla2xxx_nacl *nacl;
+ struct tcm_qla2xxx_nacl *nacl =
+ container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
u64 wwnn;
- u32 qla2xxx_nexus_depth;
if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
- se_nacl_new = tcm_qla2xxx_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-/* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */
- qla2xxx_nexus_depth = 1;
-
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, qla2xxx_nexus_depth);
- if (IS_ERR(se_nacl)) {
- tcm_qla2xxx_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
nacl->nport_wwnn = wwnn;
tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
- return se_nacl;
-}
-
-static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct se_portal_group *se_tpg = se_acl->se_tpg;
- struct tcm_qla2xxx_nacl *nacl = container_of(se_acl,
- struct tcm_qla2xxx_nacl, se_node_acl);
-
- core_tpg_del_initiator_node_acl(se_tpg, se_acl, 1);
- kfree(nacl);
+ return 0;
}
/* Start items for tcm_qla2xxx_tpg_attrib_cit */
@@ -1175,8 +1002,7 @@
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
- ret = core_tpg_register(&tcm_qla2xxx_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1295,8 +1121,7 @@
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
- ret = core_tpg_register(&tcm_qla2xxx_npiv_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1988,14 +1813,10 @@
static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
.module = THIS_MODULE,
.name = "qla2xxx",
+ .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
.get_fabric_name = tcm_qla2xxx_get_fabric_name,
- .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
- .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
- .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -2004,12 +1825,9 @@
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
- .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
- .put_session = tcm_qla2xxx_put_session,
.shutdown_session = tcm_qla2xxx_shutdown_session,
.close_session = tcm_qla2xxx_close_session,
.sess_get_index = tcm_qla2xxx_sess_get_index,
@@ -2017,7 +1835,6 @@
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
- .get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
@@ -2031,12 +1848,7 @@
.fabric_drop_wwn = tcm_qla2xxx_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_make_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
- .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+ .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
.tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
@@ -2046,26 +1858,19 @@
static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
.module = THIS_MODULE,
.name = "qla2xxx_npiv",
+ .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
.get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
- .get_fabric_proto_ident = tcm_qla2xxx_get_fabric_proto_ident,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
- .tpg_get_default_depth = tcm_qla2xxx_get_default_depth,
- .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
.tpg_check_prod_mode_write_protect =
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
- .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
- .put_session = tcm_qla2xxx_put_session,
.shutdown_session = tcm_qla2xxx_shutdown_session,
.close_session = tcm_qla2xxx_close_session,
.sess_get_index = tcm_qla2xxx_sess_get_index,
@@ -2073,7 +1878,6 @@
.write_pending = tcm_qla2xxx_write_pending,
.write_pending_status = tcm_qla2xxx_write_pending_status,
.set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
- .get_task_tag = tcm_qla2xxx_get_task_tag,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
@@ -2087,12 +1891,7 @@
.fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = tcm_qla2xxx_make_nodeacl,
- .fabric_drop_nodeacl = tcm_qla2xxx_drop_nodeacl,
+ .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
.tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 2329511..3bbf4cb 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -13,6 +13,8 @@
#include "qla_target.h"
struct tcm_qla2xxx_nacl {
+ struct se_node_acl se_node_acl;
+
/* From libfc struct fc_rport->port_id */
u32 nport_id;
/* Binary World Wide unique Node Name for remote FC Initiator Nport */
@@ -23,8 +25,6 @@
struct qla_tgt_sess *qla_tgt_sess;
/* Pointer to TCM FC nexus */
struct se_session *nport_nexus;
- /* Returned by tcm_qla2xxx_make_nodeacl() */
- struct se_node_acl se_node_acl;
};
struct tcm_qla2xxx_tpg_attrib {
@@ -57,8 +57,6 @@
};
struct tcm_qla2xxx_lport {
- /* SCSI protocol the lport is providing */
- u8 lport_proto_id;
/* Binary World Wide unique Port Name for FC Target Lport */
u64 lport_wwpn;
/* Binary World Wide unique Port Name for FC NPIV Target Lport */
diff --git a/drivers/soc/qcom/spm.c b/drivers/soc/qcom/spm.c
index b562af8..b04b05a 100644
--- a/drivers/soc/qcom/spm.c
+++ b/drivers/soc/qcom/spm.c
@@ -260,7 +260,7 @@
/* We have atleast one power down mode */
cpumask_clear(&mask);
cpumask_set_cpu(cpu, &mask);
- qcom_scm_set_warm_boot_addr(cpu_resume, &mask);
+ qcom_scm_set_warm_boot_addr(cpu_resume_arm, &mask);
}
per_cpu(qcom_idle_ops, cpu) = fns;
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index a3fba36..4e68b62 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -29,7 +29,6 @@
#include <scsi/scsi_tcq.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_parameters.h"
@@ -716,7 +715,7 @@
*/
if (cmd->se_cmd.se_tfo != NULL) {
pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}
return -1;
}
@@ -1002,13 +1001,15 @@
hdr->cmdsn, be32_to_cpu(hdr->data_length), payload_length,
conn->cid);
- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);
cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd,
scsilun_to_int(&hdr->lun));
if (cmd->sense_reason)
goto attach_cmd;
+ /* only used for printks or comparing with ->ref_task_tag */
+ cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb);
if (cmd->sense_reason) {
if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
@@ -1068,7 +1069,7 @@
if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
return -1;
else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
}
@@ -1084,7 +1085,7 @@
if (!cmd->sense_reason)
return 0;
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return 0;
}
@@ -1115,7 +1116,6 @@
iscsit_get_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr,
bool dump_payload)
{
- struct iscsi_conn *conn = cmd->conn;
int cmdsn_ret = 0, immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
/*
* Special case for Unsupported SAM WRITE Opcodes and ImmediateData=Yes.
@@ -1142,7 +1142,7 @@
rc = iscsit_dump_data_payload(cmd->conn,
cmd->first_burst_len, 1);
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
return rc;
} else if (cmd->unsolicited_data)
iscsit_set_unsoliticed_dataout(cmd);
@@ -1811,7 +1811,7 @@
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
- target_get_sess_cmd(conn->sess->se_sess, &cmd->se_cmd, true);
+ target_get_sess_cmd(&cmd->se_cmd, true);
sess_ref = true;
switch (function) {
@@ -1953,7 +1953,7 @@
*/
if (sess_ref) {
pr_debug("Handle TMR, using sess_ref=true check\n");
- target_put_sess_cmd(conn->sess->se_sess, &cmd->se_cmd);
+ target_put_sess_cmd(&cmd->se_cmd);
}
iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
@@ -2737,11 +2737,7 @@
cmd->iov_data_count = iov_count;
cmd->tx_size = tx_size;
- /* sendpage is preferred but can't insert markers */
- if (!conn->conn_ops->IFMarker)
- ret = iscsit_fe_sendpage_sg(cmd, conn);
- else
- ret = iscsit_send_tx_data(cmd, conn, 0);
+ ret = iscsit_fe_sendpage_sg(cmd, conn);
iscsit_unmap_iovec(cmd);
@@ -4073,17 +4069,9 @@
" opcode while ERL=0, closing iSCSI connection.\n");
return -1;
}
- if (!conn->conn_ops->OFMarker) {
- pr_err("Unable to recover from unknown"
- " opcode while OFMarker=No, closing iSCSI"
- " connection.\n");
- return -1;
- }
- if (iscsit_recover_from_unknown_opcode(conn) < 0) {
- pr_err("Unable to recover from unknown"
- " opcode, closing iSCSI connection.\n");
- return -1;
- }
+ pr_err("Unable to recover from unknown opcode while OFMarker=No,"
+ " closing iSCSI connection.\n");
+ ret = -1;
break;
}
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 469fce4..c1898c8 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -24,7 +24,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <target/iscsi/iscsi_transport.h>
@@ -860,57 +859,19 @@
NULL,
};
-static struct se_node_acl *lio_tpg_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
+static int lio_target_init_nodeacl(struct se_node_acl *se_nacl,
+ const char *name)
{
- struct iscsi_node_acl *acl;
-
- acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
- if (!acl) {
- pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
- return NULL;
- }
-
- return &acl->se_node_acl;
-}
-
-static struct se_node_acl *lio_target_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
-{
- struct config_group *stats_cg;
- struct iscsi_node_acl *acl;
- struct se_node_acl *se_nacl_new, *se_nacl;
- struct iscsi_portal_group *tpg = container_of(se_tpg,
- struct iscsi_portal_group, tpg_se_tpg);
- u32 cmdsn_depth;
-
- se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NdoeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, cmdsn_depth);
- if (IS_ERR(se_nacl))
- return se_nacl;
-
- acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
- stats_cg = &se_nacl->acl_fabric_stat_group;
+ struct iscsi_node_acl *acl =
+ container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
+ struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group;
stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
GFP_KERNEL);
if (!stats_cg->default_groups) {
pr_err("Unable to allocate memory for"
" stats_cg->default_groups\n");
- core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
- kfree(acl);
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
}
stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
@@ -918,13 +879,11 @@
config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
"iscsi_sess_stats", &iscsi_stat_sess_cit);
- return se_nacl;
+ return 0;
}
-static void lio_target_drop_nodeacl(
- struct se_node_acl *se_nacl)
+static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl)
{
- struct se_portal_group *se_tpg = se_nacl->se_tpg;
struct iscsi_node_acl *acl = container_of(se_nacl,
struct iscsi_node_acl, se_node_acl);
struct config_item *df_item;
@@ -938,9 +897,6 @@
config_item_put(df_item);
}
kfree(stats_cg->default_groups);
-
- core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
- kfree(acl);
}
/* End items for lio_target_acl_cit */
@@ -1463,8 +1419,7 @@
if (!tpg)
return NULL;
- ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg,
- tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
if (ret < 0)
return NULL;
@@ -1735,14 +1690,6 @@
return "iSCSI";
}
-static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
-{
- struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
-
- /* only used for printks or comparism with ->ref_task_tag */
- return (__force u32)cmd->init_task_tag;
-}
-
static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
@@ -1832,78 +1779,58 @@
cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
}
+static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
+{
+ return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
+}
+
static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return &tpg->tpg_tiqn->tiqn[0];
+ return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
}
static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpgt;
+ return iscsi_tpg(se_tpg)->tpgt;
}
static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.default_cmdsn_depth;
+ return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
}
static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.generate_node_acls;
+ return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
}
static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.cache_dynamic_acls;
+ return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
}
static int lio_tpg_check_demo_mode_write_protect(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.demo_mode_write_protect;
+ return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
}
static int lio_tpg_check_prod_mode_write_protect(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_attrib.prod_mode_write_protect;
+ return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
}
static int lio_tpg_check_prot_fabric_only(
struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
/*
* Only report fabric_prot_type if t10_pi has also been enabled
* for incoming ib_isert sessions.
*/
- if (!tpg->tpg_attrib.t10_pi)
+ if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
return 0;
-
- return tpg->tpg_attrib.fabric_prot_type;
-}
-
-static void lio_tpg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_acl)
-{
- struct iscsi_node_acl *acl = container_of(se_acl,
- struct iscsi_node_acl, se_node_acl);
- kfree(acl);
+ return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
}
/*
@@ -1948,9 +1875,7 @@
static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
- struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->tpg_tiqn->tiqn_index;
+ return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index;
}
static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
@@ -1967,7 +1892,7 @@
static int lio_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
static void lio_release_cmd(struct se_cmd *se_cmd)
@@ -1981,14 +1906,11 @@
const struct target_core_fabric_ops iscsi_ops = {
.module = THIS_MODULE,
.name = "iscsi",
+ .node_acl_size = sizeof(struct iscsi_node_acl),
.get_fabric_name = iscsi_get_fabric_name,
- .get_fabric_proto_ident = iscsi_get_fabric_proto_ident,
.tpg_get_wwn = lio_tpg_get_endpoint_wwn,
.tpg_get_tag = lio_tpg_get_tag,
.tpg_get_default_depth = lio_tpg_get_default_depth,
- .tpg_get_pr_transport_id = iscsi_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = lio_tpg_check_demo_mode,
.tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -1996,8 +1918,6 @@
.tpg_check_prod_mode_write_protect =
lio_tpg_check_prod_mode_write_protect,
.tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = lio_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = lio_tpg_release_fabric_acl,
.tpg_get_inst_index = lio_tpg_get_inst_index,
.check_stop_free = lio_check_stop_free,
.release_cmd = lio_release_cmd,
@@ -2008,7 +1928,6 @@
.write_pending = lio_write_pending,
.write_pending_status = lio_write_pending_status,
.set_default_node_attributes = lio_set_default_node_attributes,
- .get_task_tag = iscsi_get_task_tag,
.get_cmd_state = iscsi_get_cmd_state,
.queue_data_in = lio_queue_data_in,
.queue_status = lio_queue_status,
@@ -2020,8 +1939,8 @@
.fabric_drop_tpg = lio_target_tiqn_deltpg,
.fabric_make_np = lio_target_call_addnptotpg,
.fabric_drop_np = lio_target_call_delnpfromtpg,
- .fabric_make_nodeacl = lio_target_make_nodeacl,
- .fabric_drop_nodeacl = lio_target_drop_nodeacl,
+ .fabric_init_nodeacl = lio_target_init_nodeacl,
+ .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl,
.tfc_discovery_attrs = lio_target_discovery_auth_attrs,
.tfc_wwn_attrs = lio_target_wwn_attrs,
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 959a14c..210f6e4 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -956,56 +956,3 @@
iscsit_handle_connection_cleanup(conn);
}
-
-/*
- * This is the simple function that makes the magic of
- * sync and steering happen in the follow paradoxical order:
- *
- * 0) Receive conn->of_marker (bytes left until next OFMarker)
- * bytes into an offload buffer. When we pass the exact number
- * of bytes in conn->of_marker, iscsit_dump_data_payload() and hence
- * rx_data() will automatically receive the identical u32 marker
- * values and store it in conn->of_marker_offset;
- * 1) Now conn->of_marker_offset will contain the offset to the start
- * of the next iSCSI PDU. Dump these remaining bytes into another
- * offload buffer.
- * 2) We are done!
- * Next byte in the TCP stream will contain the next iSCSI PDU!
- * Cool Huh?!
- */
-int iscsit_recover_from_unknown_opcode(struct iscsi_conn *conn)
-{
- /*
- * Make sure the remaining bytes to next maker is a sane value.
- */
- if (conn->of_marker > (conn->conn_ops->OFMarkInt * 4)) {
- pr_err("Remaining bytes to OFMarker: %u exceeds"
- " OFMarkInt bytes: %u.\n", conn->of_marker,
- conn->conn_ops->OFMarkInt * 4);
- return -1;
- }
-
- pr_debug("Advancing %u bytes in TCP stream to get to the"
- " next OFMarker.\n", conn->of_marker);
-
- if (iscsit_dump_data_payload(conn, conn->of_marker, 0) < 0)
- return -1;
-
- /*
- * Make sure the offset marker we retrived is a valid value.
- */
- if (conn->of_marker_offset > (ISCSI_HDR_LEN + (ISCSI_CRC_LEN * 2) +
- conn->conn_ops->MaxRecvDataSegmentLength)) {
- pr_err("OfMarker offset value: %u exceeds limit.\n",
- conn->of_marker_offset);
- return -1;
- }
-
- pr_debug("Discarding %u bytes of TCP stream to get to the"
- " next iSCSI Opcode.\n", conn->of_marker_offset);
-
- if (iscsit_dump_data_payload(conn, conn->of_marker_offset, 0) < 0)
- return -1;
-
- return 0;
-}
diff --git a/drivers/target/iscsi/iscsi_target_erl0.h b/drivers/target/iscsi/iscsi_target_erl0.h
index 21acc9a..a9e2f94 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.h
+++ b/drivers/target/iscsi/iscsi_target_erl0.h
@@ -10,6 +10,5 @@
extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
extern void iscsit_fall_back_to_erl0(struct iscsi_session *);
extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *);
-extern int iscsit_recover_from_unknown_opcode(struct iscsi_conn *);
#endif /*** ISCSI_TARGET_ERL0_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 70d799d..3d0fe4f 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -410,8 +410,6 @@
if (iscsi_change_param_sprintf(conn, "ErrorRecoveryLevel=%d", na->default_erl))
return -1;
- if (iscsi_login_disable_FIM_keys(conn->param_list, conn) < 0)
- return -1;
/*
* Set RDMAExtensions=Yes by default for iSER enabled network portals
*/
@@ -477,59 +475,6 @@
return 0;
}
-/*
- * Remove PSTATE_NEGOTIATE for the four FIM related keys.
- * The Initiator node will be able to enable FIM by proposing them itself.
- */
-int iscsi_login_disable_FIM_keys(
- struct iscsi_param_list *param_list,
- struct iscsi_conn *conn)
-{
- struct iscsi_param *param;
-
- param = iscsi_find_param_from_key("OFMarker", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " OFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("OFMarkInt", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("IFMarker", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- param = iscsi_find_param_from_key("IFMarkInt", param_list);
- if (!param) {
- pr_err("iscsi_find_param_from_key() for"
- " IFMarker failed\n");
- iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
- ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
- }
- param->state &= ~PSTATE_NEGOTIATE;
-
- return 0;
-}
-
static int iscsi_login_non_zero_tsih_s1(
struct iscsi_conn *conn,
unsigned char *buf)
@@ -616,7 +561,7 @@
if (iscsi_change_param_sprintf(conn, "TargetPortalGroupTag=%hu", sess->tpg->tpgt))
return -1;
- return iscsi_login_disable_FIM_keys(conn->param_list, conn);
+ return 0;
}
int iscsi_login_post_auth_non_zero_tsih(
@@ -765,7 +710,6 @@
conn->conn_state = TARG_CONN_STATE_LOGGED_IN;
iscsi_set_connection_parameters(conn->conn_ops, conn->param_list);
- iscsit_set_sync_and_steering_values(conn);
/*
* SCSI Initiator -> SCSI Target Port Mapping
*/
diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h
index 29d0983..1c73580 100644
--- a/drivers/target/iscsi/iscsi_target_login.h
+++ b/drivers/target/iscsi/iscsi_target_login.h
@@ -16,6 +16,5 @@
extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *,
bool, bool);
extern int iscsi_target_login_thread(void *);
-extern int iscsi_login_disable_FIM_keys(struct iscsi_param_list *, struct iscsi_conn *);
#endif /*** ISCSI_TARGET_LOGIN_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index d4f9e96..e8a52f7 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -34,13 +34,6 @@
iov.iov_len = length;
iov.iov_base = buf;
- /*
- * Initial Marker-less Interval.
- * Add the values regardless of IFMarker/OFMarker, considering
- * it may not be negoitated yet.
- */
- conn->of_marker += length;
-
rx_got = rx_data(conn, &iov, 1, length);
if (rx_got != length) {
pr_err("rx_data returned %d, expecting %d.\n",
@@ -72,13 +65,6 @@
iov_cnt++;
}
- /*
- * Initial Marker-less Interval.
- * Add the values regardless of IFMarker/OFMarker, considering
- * it may not be negoitated yet.
- */
- conn->if_marker += length;
-
tx_sent = tx_data(conn, &iov[0], iov_cnt, length);
if (tx_sent != length) {
pr_err("tx_data returned %d, expecting %d.\n",
@@ -97,12 +83,6 @@
"CRC32C" : "None");
pr_debug("MaxRecvDataSegmentLength: %u\n",
conn_ops->MaxRecvDataSegmentLength);
- pr_debug("OFMarker: %s\n", (conn_ops->OFMarker) ? "Yes" : "No");
- pr_debug("IFMarker: %s\n", (conn_ops->IFMarker) ? "Yes" : "No");
- if (conn_ops->OFMarker)
- pr_debug("OFMarkInt: %u\n", conn_ops->OFMarkInt);
- if (conn_ops->IFMarker)
- pr_debug("IFMarkInt: %u\n", conn_ops->IFMarkInt);
}
void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops)
@@ -194,10 +174,6 @@
case TYPERANGE_DIGEST:
param->type = TYPE_VALUE_LIST | TYPE_STRING;
break;
- case TYPERANGE_MARKINT:
- param->type = TYPE_NUMBER_RANGE;
- param->type_range |= TYPERANGE_1_TO_65535;
- break;
case TYPERANGE_ISCSINAME:
case TYPERANGE_SESSIONTYPE:
case TYPERANGE_TARGETADDRESS:
@@ -422,13 +398,13 @@
param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
- TYPERANGE_MARKINT, USE_INITIAL_ONLY);
+ TYPERANGE_UTF8, USE_INITIAL_ONLY);
if (!param)
goto out;
param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
- TYPERANGE_MARKINT, USE_INITIAL_ONLY);
+ TYPERANGE_UTF8, USE_INITIAL_ONLY);
if (!param)
goto out;
/*
@@ -524,9 +500,9 @@
} else if (!strcmp(param->name, OFMARKER)) {
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, IFMARKINT)) {
- SET_PSTATE_NEGOTIATE(param);
+ SET_PSTATE_REJECT(param);
} else if (!strcmp(param->name, OFMARKINT)) {
- SET_PSTATE_NEGOTIATE(param);
+ SET_PSTATE_REJECT(param);
} else if (!strcmp(param->name, RDMAEXTENSIONS)) {
if (iser)
SET_PSTATE_NEGOTIATE(param);
@@ -906,91 +882,6 @@
return 0;
}
-static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
-{
- char *left_val_ptr = NULL, *right_val_ptr = NULL;
- char *tilde_ptr = NULL;
- u32 left_val, right_val, local_left_val;
-
- if (strcmp(param->name, IFMARKINT) &&
- strcmp(param->name, OFMARKINT)) {
- pr_err("Only parameters \"%s\" or \"%s\" may contain a"
- " numerical range value.\n", IFMARKINT, OFMARKINT);
- return -1;
- }
-
- if (IS_PSTATE_PROPOSER(param))
- return 0;
-
- tilde_ptr = strchr(value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range indicator"
- " \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = value;
- right_val_ptr = value + strlen(left_val_ptr) + 1;
-
- if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
- return -1;
- if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
- return -1;
-
- left_val = simple_strtoul(left_val_ptr, NULL, 0);
- right_val = simple_strtoul(right_val_ptr, NULL, 0);
- *tilde_ptr = '~';
-
- if (right_val < left_val) {
- pr_err("Numerical range for parameter \"%s\" contains"
- " a right value which is less than the left.\n",
- param->name);
- return -1;
- }
-
- /*
- * For now, enforce reasonable defaults for [I,O]FMarkInt.
- */
- tilde_ptr = strchr(param->value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range indicator"
- " \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = param->value;
- right_val_ptr = param->value + strlen(left_val_ptr) + 1;
-
- local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
- *tilde_ptr = '~';
-
- if (param->set_param) {
- if ((left_val < local_left_val) ||
- (right_val < local_left_val)) {
- pr_err("Passed value range \"%u~%u\" is below"
- " minimum left value \"%u\" for key \"%s\","
- " rejecting.\n", left_val, right_val,
- local_left_val, param->name);
- return -1;
- }
- } else {
- if ((left_val < local_left_val) &&
- (right_val < local_left_val)) {
- pr_err("Received value range \"%u~%u\" is"
- " below minimum left value \"%u\" for key"
- " \"%s\", rejecting.\n", left_val, right_val,
- local_left_val, param->name);
- SET_PSTATE_REJECT(param);
- if (iscsi_update_param_value(param, REJECT) < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
{
if (IS_PSTATE_PROPOSER(param))
@@ -1027,33 +918,6 @@
return 0;
}
-/*
- * This function is used to pick a value range number, currently just
- * returns the lesser of both right values.
- */
-static char *iscsi_get_value_from_number_range(
- struct iscsi_param *param,
- char *value)
-{
- char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
- u32 acceptor_right_value, proposer_right_value;
-
- tilde_ptr1 = strchr(value, '~');
- if (!tilde_ptr1)
- return NULL;
- *tilde_ptr1++ = '\0';
- proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
-
- tilde_ptr2 = strchr(param->value, '~');
- if (!tilde_ptr2)
- return NULL;
- *tilde_ptr2++ = '\0';
- acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
-
- return (acceptor_right_value >= proposer_right_value) ?
- tilde_ptr1 : tilde_ptr2;
-}
-
static char *iscsi_check_valuelist_for_support(
struct iscsi_param *param,
char *value)
@@ -1103,7 +967,7 @@
struct iscsi_conn *conn)
{
u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
- char *negoitated_value = NULL;
+ char *negotiated_value = NULL;
if (IS_PSTATE_ACCEPTOR(param)) {
pr_err("Received key \"%s\" twice, protocol error.\n",
@@ -1203,24 +1067,16 @@
pr_debug("Updated %s to target MXDSL value: %s\n",
param->name, param->value);
}
-
- } else if (IS_TYPE_NUMBER_RANGE(param)) {
- negoitated_value = iscsi_get_value_from_number_range(
- param, value);
- if (!negoitated_value)
- return -1;
- if (iscsi_update_param_value(param, negoitated_value) < 0)
- return -1;
} else if (IS_TYPE_VALUE_LIST(param)) {
- negoitated_value = iscsi_check_valuelist_for_support(
+ negotiated_value = iscsi_check_valuelist_for_support(
param, value);
- if (!negoitated_value) {
+ if (!negotiated_value) {
pr_err("Proposer's value list \"%s\" contains"
" no valid values from Acceptor's value list"
" \"%s\".\n", value, param->value);
return -1;
}
- if (iscsi_update_param_value(param, negoitated_value) < 0)
+ if (iscsi_update_param_value(param, negotiated_value) < 0)
return -1;
} else if (IS_PHASE_DECLARATIVE(param)) {
if (iscsi_update_param_value(param, value) < 0)
@@ -1239,47 +1095,7 @@
return -1;
}
- if (IS_TYPE_NUMBER_RANGE(param)) {
- u32 left_val = 0, right_val = 0, recieved_value = 0;
- char *left_val_ptr = NULL, *right_val_ptr = NULL;
- char *tilde_ptr = NULL;
-
- if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
- if (iscsi_update_param_value(param, value) < 0)
- return -1;
- return 0;
- }
-
- tilde_ptr = strchr(value, '~');
- if (tilde_ptr) {
- pr_err("Illegal \"~\" in response for \"%s\".\n",
- param->name);
- return -1;
- }
- tilde_ptr = strchr(param->value, '~');
- if (!tilde_ptr) {
- pr_err("Unable to locate numerical range"
- " indicator \"~\" for \"%s\".\n", param->name);
- return -1;
- }
- *tilde_ptr = '\0';
-
- left_val_ptr = param->value;
- right_val_ptr = param->value + strlen(left_val_ptr) + 1;
- left_val = simple_strtoul(left_val_ptr, NULL, 0);
- right_val = simple_strtoul(right_val_ptr, NULL, 0);
- recieved_value = simple_strtoul(value, NULL, 0);
-
- *tilde_ptr = '~';
-
- if ((recieved_value < left_val) ||
- (recieved_value > right_val)) {
- pr_err("Illegal response \"%s=%u\", value must"
- " be between %u and %u.\n", param->name,
- recieved_value, left_val, right_val);
- return -1;
- }
- } else if (IS_TYPE_VALUE_LIST(param)) {
+ if (IS_TYPE_VALUE_LIST(param)) {
char *comma_ptr = NULL, *tmp_ptr = NULL;
comma_ptr = strchr(value, ',');
@@ -1361,9 +1177,6 @@
} else if (IS_TYPE_NUMBER(param)) {
if (iscsi_check_numerical_value(param, value) < 0)
return -1;
- } else if (IS_TYPE_NUMBER_RANGE(param)) {
- if (iscsi_check_numerical_range_value(param, value) < 0)
- return -1;
} else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
if (iscsi_check_string_or_list_value(param, value) < 0)
return -1;
@@ -1483,8 +1296,6 @@
char *tmpptr;
u8 DataSequenceInOrder = 0;
u8 ErrorRecoveryLevel = 0, SessionType = 0;
- u8 IFMarker = 0, OFMarker = 0;
- u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
u32 FirstBurstLength = 0, MaxBurstLength = 0;
struct iscsi_param *param = NULL;
@@ -1503,28 +1314,12 @@
if (!strcmp(param->name, MAXBURSTLENGTH))
MaxBurstLength = simple_strtoul(param->value,
&tmpptr, 0);
- if (!strcmp(param->name, IFMARKER))
- if (!strcmp(param->value, YES))
- IFMarker = 1;
- if (!strcmp(param->name, OFMARKER))
- if (!strcmp(param->value, YES))
- OFMarker = 1;
- if (!strcmp(param->name, IFMARKINT))
- if (!strcmp(param->value, REJECT))
- IFMarkInt_Reject = 1;
- if (!strcmp(param->name, OFMARKINT))
- if (!strcmp(param->value, REJECT))
- OFMarkInt_Reject = 1;
}
list_for_each_entry(param, ¶m_list->param_list, p_list) {
if (!(param->phase & phase))
continue;
- if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
- (strcmp(param->name, IFMARKER) &&
- strcmp(param->name, OFMARKER) &&
- strcmp(param->name, IFMARKINT) &&
- strcmp(param->name, OFMARKINT))))
+ if (!SessionType && !IS_PSTATE_ACCEPTOR(param))
continue;
if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
@@ -1556,38 +1351,6 @@
param->name, param->value);
}
}
- if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
- if (iscsi_update_param_value(param, NO) < 0)
- return -1;
- IFMarker = 0;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
- if (iscsi_update_param_value(param, NO) < 0)
- return -1;
- OFMarker = 0;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
- if (!strcmp(param->value, REJECT))
- continue;
- param->state &= ~PSTATE_NEGOTIATE;
- if (iscsi_update_param_value(param, IRRELEVANT) < 0)
- return -1;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
- if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
- if (!strcmp(param->value, REJECT))
- continue;
- param->state &= ~PSTATE_NEGOTIATE;
- if (iscsi_update_param_value(param, IRRELEVANT) < 0)
- return -1;
- pr_debug("Reset \"%s\" to \"%s\".\n",
- param->name, param->value);
- }
}
return 0;
@@ -1824,24 +1587,6 @@
*/
pr_debug("MaxRecvDataSegmentLength: %u\n",
ops->MaxRecvDataSegmentLength);
- } else if (!strcmp(param->name, OFMARKER)) {
- ops->OFMarker = !strcmp(param->value, YES);
- pr_debug("OFMarker: %s\n",
- param->value);
- } else if (!strcmp(param->name, IFMARKER)) {
- ops->IFMarker = !strcmp(param->value, YES);
- pr_debug("IFMarker: %s\n",
- param->value);
- } else if (!strcmp(param->name, OFMARKINT)) {
- ops->OFMarkInt =
- simple_strtoul(param->value, &tmpptr, 0);
- pr_debug("OFMarkInt: %s\n",
- param->value);
- } else if (!strcmp(param->name, IFMARKINT)) {
- ops->IFMarkInt =
- simple_strtoul(param->value, &tmpptr, 0);
- pr_debug("IFMarkInt: %s\n",
- param->value);
} else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
ops->InitiatorRecvDataSegmentLength =
simple_strtoul(param->value, &tmpptr, 0);
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index a47046a..a0751e3 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -138,8 +138,8 @@
#define INITIAL_SESSIONTYPE NORMAL
#define INITIAL_IFMARKER NO
#define INITIAL_OFMARKER NO
-#define INITIAL_IFMARKINT "2048~65535"
-#define INITIAL_OFMARKINT "2048~65535"
+#define INITIAL_IFMARKINT REJECT
+#define INITIAL_OFMARKINT REJECT
/*
* Initial values for iSER parameters following RFC-5046 Section 6
@@ -239,10 +239,9 @@
#define TYPERANGE_AUTH 0x0200
#define TYPERANGE_DIGEST 0x0400
#define TYPERANGE_ISCSINAME 0x0800
-#define TYPERANGE_MARKINT 0x1000
-#define TYPERANGE_SESSIONTYPE 0x2000
-#define TYPERANGE_TARGETADDRESS 0x4000
-#define TYPERANGE_UTF8 0x8000
+#define TYPERANGE_SESSIONTYPE 0x1000
+#define TYPERANGE_TARGETADDRESS 0x2000
+#define TYPERANGE_UTF8 0x4000
#define IS_TYPERANGE_0_TO_2(p) ((p)->type_range & TYPERANGE_0_TO_2)
#define IS_TYPERANGE_0_TO_3600(p) ((p)->type_range & TYPERANGE_0_TO_3600)
diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c
index fe9a582..cf59c39 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.c
+++ b/drivers/target/iscsi/iscsi_target_tmr.c
@@ -120,7 +120,7 @@
struct iscsi_tmr_req *tmr_req = cmd->tmr_req;
struct se_tmr_req *se_tmr = cmd->se_cmd.se_tmr_req;
struct iscsi_tm *hdr = (struct iscsi_tm *) buf;
- int ret, ref_lun;
+ u64 ret, ref_lun;
pr_debug("Got TASK_REASSIGN TMR ITT: 0x%08x,"
" RefTaskTag: 0x%08x, ExpDataSN: 0x%08x, CID: %hu\n",
@@ -164,7 +164,7 @@
ref_lun = scsilun_to_int(&hdr->lun);
if (ref_lun != ref_cmd->se_cmd.orig_fe_lun) {
pr_err("Unable to perform connection recovery for"
- " differing ref_lun: %d ref_cmd orig_fe_lun: %u\n",
+ " differing ref_lun: %llu ref_cmd orig_fe_lun: %llu\n",
ref_lun, ref_cmd->se_cmd.orig_fe_lun);
return ISCSI_TMF_RSP_REJECTED;
}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 5e3295f..968068f 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -18,7 +18,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_target_core.h>
#include "iscsi_target_erl0.h"
@@ -67,9 +66,12 @@
pr_err("Unable to allocate struct iscsi_portal_group\n");
return -1;
}
-
- ret = core_tpg_register(&iscsi_ops, NULL, &tpg->tpg_se_tpg,
- tpg, TRANSPORT_TPG_TYPE_DISCOVERY);
+ /*
+ * Save iscsi_ops pointer for special case discovery TPG that
+ * doesn't exist as se_wwn->wwn_group within configfs.
+ */
+ tpg->tpg_se_tpg.se_tpg_tfo = &iscsi_ops;
+ ret = core_tpg_register(NULL, &tpg->tpg_se_tpg, -1);
if (ret < 0) {
kfree(tpg);
return -1;
@@ -280,8 +282,6 @@
return -EPERM;
}
- core_tpg_clear_object_luns(&tpg->tpg_se_tpg);
-
if (tpg->param_list) {
iscsi_release_param_list(tpg->param_list);
tpg->param_list = NULL;
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index b18edda..a2bff07 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -22,7 +22,6 @@
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/iscsi/iscsi_transport.h>
#include <target/iscsi/iscsi_target_core.h>
@@ -746,7 +745,7 @@
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
case ISCSI_OP_REJECT:
@@ -762,7 +761,7 @@
rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
- target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
}
break;
}
@@ -809,54 +808,6 @@
spin_unlock_bh(&sess->session_usage_lock);
}
-/*
- * Setup conn->if_marker and conn->of_marker values based upon
- * the initial marker-less interval. (see iSCSI v19 A.2)
- */
-int iscsit_set_sync_and_steering_values(struct iscsi_conn *conn)
-{
- int login_ifmarker_count = 0, login_ofmarker_count = 0, next_marker = 0;
- /*
- * IFMarkInt and OFMarkInt are negotiated as 32-bit words.
- */
- u32 IFMarkInt = (conn->conn_ops->IFMarkInt * 4);
- u32 OFMarkInt = (conn->conn_ops->OFMarkInt * 4);
-
- if (conn->conn_ops->OFMarker) {
- /*
- * Account for the first Login Command received not
- * via iscsi_recv_msg().
- */
- conn->of_marker += ISCSI_HDR_LEN;
- if (conn->of_marker <= OFMarkInt) {
- conn->of_marker = (OFMarkInt - conn->of_marker);
- } else {
- login_ofmarker_count = (conn->of_marker / OFMarkInt);
- next_marker = (OFMarkInt * (login_ofmarker_count + 1)) +
- (login_ofmarker_count * MARKER_SIZE);
- conn->of_marker = (next_marker - conn->of_marker);
- }
- conn->of_marker_offset = 0;
- pr_debug("Setting OFMarker value to %u based on Initial"
- " Markerless Interval.\n", conn->of_marker);
- }
-
- if (conn->conn_ops->IFMarker) {
- if (conn->if_marker <= IFMarkInt) {
- conn->if_marker = (IFMarkInt - conn->if_marker);
- } else {
- login_ifmarker_count = (conn->if_marker / IFMarkInt);
- next_marker = (IFMarkInt * (login_ifmarker_count + 1)) +
- (login_ifmarker_count * MARKER_SIZE);
- conn->if_marker = (next_marker - conn->if_marker);
- }
- pr_debug("Setting IFMarker value to %u based on Initial"
- " Markerless Interval.\n", conn->if_marker);
- }
-
- return 0;
-}
-
struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *sess, u16 cid)
{
struct iscsi_conn *conn;
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 1ab754a..995f1cb 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -34,7 +34,6 @@
extern int iscsit_check_session_usage_count(struct iscsi_session *);
extern void iscsit_dec_session_usage_count(struct iscsi_session *);
extern void iscsit_inc_session_usage_count(struct iscsi_session *);
-extern int iscsit_set_sync_and_steering_values(struct iscsi_conn *);
extern struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *, u16);
extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, u16);
extern void iscsit_check_conn_usage_count(struct iscsi_conn *);
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 51f0c89..a556bde 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -35,14 +35,11 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include "tcm_loop.h"
#define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev)
-static const struct target_core_fabric_ops loop_ops;
-
static struct workqueue_struct *tcm_loop_workqueue;
static struct kmem_cache *tcm_loop_cmd_cache;
@@ -165,6 +162,7 @@
transfer_length = scsi_bufflen(sc);
}
+ se_cmd->tag = tl_cmd->sc_cmd_tag;
rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
&tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
transfer_length, TCM_SIMPLE_TAG,
@@ -217,7 +215,7 @@
* to struct scsi_device
*/
static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
- int lun, int task, enum tcm_tmreq_table tmr)
+ u64 lun, int task, enum tcm_tmreq_table tmr)
{
struct se_cmd *se_cmd = NULL;
struct se_session *se_sess;
@@ -409,7 +407,7 @@
sh->max_id = 2;
sh->max_lun = 0;
sh->max_channel = 0;
- sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
+ sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |
@@ -520,147 +518,26 @@
return "loopback";
}
-static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
- /*
- * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba()
- * time based on the protocol dependent prefix of the passed configfs group.
- *
- * Based upon tl_proto_id, TCM_Loop emulates the requested fabric
- * ProtocolID using target_core_fabric_lib.c symbols.
- */
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
+ return container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg);
}
static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
* Return the passed NAA identifier for the SAS Target Port
*/
- return &tl_tpg->tl_hba->tl_wwn_address[0];
+ return &tl_tpg(se_tpg)->tl_hba->tl_wwn_address[0];
}
static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
* This Tag is used when forming SCSI Name identifier in EVPD=1 0x83
* to represent the SCSI Target Port.
*/
- return tl_tpg->tl_tpgt;
-}
-
-static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 tcm_loop_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32 tcm_loop_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-static char *tcm_loop_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
+ return tl_tpg(se_tpg)->tl_tpgt;
}
/*
@@ -703,30 +580,6 @@
return tl_tpg->tl_fabric_prot_type;
}
-static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
-{
- struct tcm_loop_nacl *tl_nacl;
-
- tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL);
- if (!tl_nacl) {
- pr_err("Unable to allocate struct tcm_loop_nacl\n");
- return NULL;
- }
-
- return &tl_nacl->se_node_acl;
-}
-
-static void tcm_loop_tpg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct tcm_loop_nacl *tl_nacl = container_of(se_nacl,
- struct tcm_loop_nacl, se_node_acl);
-
- kfree(tl_nacl);
-}
-
static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -742,14 +595,6 @@
return;
}
-static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
-{
- struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
- struct tcm_loop_cmd, tl_se_cmd);
-
- return tl_cmd->sc_cmd_tag;
-}
-
static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
@@ -902,7 +747,7 @@
se_lun->unpacked_lun);
if (!sd) {
pr_err("Unable to locate struct scsi_device for %d:%d:"
- "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
+ "%llu\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
return;
}
/*
@@ -1234,8 +1079,7 @@
/*
* Register the tl_tpg as a emulated SAS TCM Target Endpoint
*/
- ret = core_tpg_register(&loop_ops, wwn, &tl_tpg->tl_se_tpg, tl_tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tl_tpg->tl_se_tpg, tl_hba->tl_proto_id);
if (ret < 0)
return ERR_PTR(-ENOMEM);
@@ -1386,13 +1230,8 @@
.module = THIS_MODULE,
.name = "loopback",
.get_fabric_name = tcm_loop_get_fabric_name,
- .get_fabric_proto_ident = tcm_loop_get_fabric_proto_ident,
.tpg_get_wwn = tcm_loop_get_endpoint_wwn,
.tpg_get_tag = tcm_loop_get_tag,
- .tpg_get_default_depth = tcm_loop_get_default_depth,
- .tpg_get_pr_transport_id = tcm_loop_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_loop_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_loop_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_loop_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_loop_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@@ -1400,8 +1239,6 @@
.tpg_check_prod_mode_write_protect =
tcm_loop_check_prod_mode_write_protect,
.tpg_check_prot_fabric_only = tcm_loop_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = tcm_loop_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_loop_tpg_release_fabric_acl,
.tpg_get_inst_index = tcm_loop_get_inst_index,
.check_stop_free = tcm_loop_check_stop_free,
.release_cmd = tcm_loop_release_cmd,
@@ -1411,7 +1248,6 @@
.write_pending = tcm_loop_write_pending,
.write_pending_status = tcm_loop_write_pending_status,
.set_default_node_attributes = tcm_loop_set_default_node_attributes,
- .get_task_tag = tcm_loop_get_task_tag,
.get_cmd_state = tcm_loop_get_cmd_state,
.queue_data_in = tcm_loop_queue_data_in,
.queue_status = tcm_loop_queue_status,
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index 1e72ff7..4346462 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -2,11 +2,6 @@
#define TL_WWN_ADDR_LEN 256
#define TL_TPGS_PER_HBA 32
-/*
- * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len
- */
-#define TL_SCSI_MAX_CMD_LEN 32
-
struct tcm_loop_cmd {
/* State of Linux/SCSI CDB+Data descriptor */
u32 sc_cmd_state;
@@ -33,10 +28,6 @@
struct se_session *se_sess;
};
-struct tcm_loop_nacl {
- struct se_node_acl se_node_acl;
-};
-
#define TCM_TRANSPORT_ONLINE 0
#define TCM_TRANSPORT_OFFLINE 1
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index ce81f17..0edf320 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -36,7 +36,6 @@
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <asm/unaligned.h>
@@ -109,13 +108,13 @@
}
static struct sbp_login_descriptor *sbp_login_find_by_lun(
- struct sbp_session *session, struct se_lun *lun)
+ struct sbp_session *session, u32 unpacked_lun)
{
struct sbp_login_descriptor *login, *found = NULL;
spin_lock_bh(&session->lock);
list_for_each_entry(login, &session->login_list, link) {
- if (login->lun == lun)
+ if (login->login_lun == unpacked_lun)
found = login;
}
spin_unlock_bh(&session->lock);
@@ -125,7 +124,7 @@
static int sbp_login_count_all_by_lun(
struct sbp_tpg *tpg,
- struct se_lun *lun,
+ u32 unpacked_lun,
int exclusive)
{
struct se_session *se_sess;
@@ -139,7 +138,7 @@
spin_lock_bh(&sess->lock);
list_for_each_entry(login, &sess->login_list, link) {
- if (login->lun != lun)
+ if (login->login_lun != unpacked_lun)
continue;
if (!exclusive || login->exclusive)
@@ -175,23 +174,23 @@
return found;
}
-static struct se_lun *sbp_get_lun_from_tpg(struct sbp_tpg *tpg, int lun)
+static u32 sbp_get_lun_from_tpg(struct sbp_tpg *tpg, u32 login_lun, int *err)
{
struct se_portal_group *se_tpg = &tpg->se_tpg;
struct se_lun *se_lun;
- if (lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return ERR_PTR(-EINVAL);
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(se_lun, &se_tpg->tpg_lun_hlist, link) {
+ if (se_lun->unpacked_lun == login_lun) {
+ rcu_read_unlock();
+ *err = 0;
+ return login_lun;
+ }
+ }
+ rcu_read_unlock();
- spin_lock(&se_tpg->tpg_lun_lock);
- se_lun = se_tpg->tpg_lun_list[lun];
-
- if (se_lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE)
- se_lun = ERR_PTR(-ENODEV);
-
- spin_unlock(&se_tpg->tpg_lun_lock);
-
- return se_lun;
+ *err = -ENODEV;
+ return login_lun;
}
static struct sbp_session *sbp_session_create(
@@ -295,17 +294,16 @@
{
struct sbp_tport *tport = agent->tport;
struct sbp_tpg *tpg = tport->tpg;
- struct se_lun *se_lun;
- int ret;
- u64 guid;
struct sbp_session *sess;
struct sbp_login_descriptor *login;
struct sbp_login_response_block *response;
- int login_response_len;
+ u64 guid;
+ u32 unpacked_lun;
+ int login_response_len, ret;
- se_lun = sbp_get_lun_from_tpg(tpg,
- LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)));
- if (IS_ERR(se_lun)) {
+ unpacked_lun = sbp_get_lun_from_tpg(tpg,
+ LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)), &ret);
+ if (ret) {
pr_notice("login to unknown LUN: %d\n",
LOGIN_ORB_LUN(be32_to_cpu(req->orb.misc)));
@@ -326,11 +324,11 @@
}
pr_notice("mgt_agent LOGIN to LUN %d from %016llx\n",
- se_lun->unpacked_lun, guid);
+ unpacked_lun, guid);
sess = sbp_session_find_by_guid(tpg, guid);
if (sess) {
- login = sbp_login_find_by_lun(sess, se_lun);
+ login = sbp_login_find_by_lun(sess, unpacked_lun);
if (login) {
pr_notice("initiator already logged-in\n");
@@ -358,7 +356,7 @@
* reject with access_denied if any logins present
*/
if (LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc)) &&
- sbp_login_count_all_by_lun(tpg, se_lun, 0)) {
+ sbp_login_count_all_by_lun(tpg, unpacked_lun, 0)) {
pr_warn("refusing exclusive login with other active logins\n");
req->status.status = cpu_to_be32(
@@ -371,7 +369,7 @@
* check exclusive bit in any existing login descriptor
* reject with access_denied if any exclusive logins present
*/
- if (sbp_login_count_all_by_lun(tpg, se_lun, 1)) {
+ if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 1)) {
pr_warn("refusing login while another exclusive login present\n");
req->status.status = cpu_to_be32(
@@ -384,7 +382,7 @@
* check we haven't exceeded the number of allowed logins
* reject with resources_unavailable if we have
*/
- if (sbp_login_count_all_by_lun(tpg, se_lun, 0) >=
+ if (sbp_login_count_all_by_lun(tpg, unpacked_lun, 0) >=
tport->max_logins_per_lun) {
pr_warn("max number of logins reached\n");
@@ -440,7 +438,7 @@
}
login->sess = sess;
- login->lun = se_lun;
+ login->login_lun = unpacked_lun;
login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
login->login_id = atomic_inc_return(&login_id);
@@ -602,7 +600,7 @@
}
pr_info("mgt_agent LOGOUT from LUN %d session %d\n",
- login->lun->unpacked_lun, login->login_id);
+ login->login_lun, login->login_id);
if (req->node_addr != login->sess->node_id) {
pr_warn("logout from different node ID\n");
@@ -1228,12 +1226,14 @@
goto err;
}
- unpacked_lun = req->login->lun->unpacked_lun;
+ unpacked_lun = req->login->login_lun;
sbp_calc_data_length_direction(req, &data_length, &data_dir);
pr_debug("sbp_handle_command ORB:0x%llx unpacked_lun:%d data_len:%d data_dir:%d\n",
req->orb_pointer, unpacked_lun, data_length, data_dir);
+ /* only used for printk until we do TMRs */
+ req->se_cmd.tag = req->orb_pointer;
if (target_submit_cmd(&req->se_cmd, sess->se_sess, req->cmd_buf,
req->sense_buf, unpacked_lun, data_length,
TCM_SIMPLE_TAG, data_dir, 0))
@@ -1707,33 +1707,6 @@
return tpg->tport_tpgt;
}
-static u32 sbp_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static struct se_node_acl *sbp_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct sbp_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct sbp_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct sbp_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void sbp_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct sbp_nacl *nacl =
- container_of(se_nacl, struct sbp_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 sbp_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1795,15 +1768,6 @@
return;
}
-static u32 sbp_get_task_tag(struct se_cmd *se_cmd)
-{
- struct sbp_target_request *req = container_of(se_cmd,
- struct sbp_target_request, se_cmd);
-
- /* only used for printk until we do TMRs */
- return (u32)req->orb_pointer;
-}
-
static int sbp_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1859,106 +1823,23 @@
return 1;
}
-/*
- * Handlers for Serial Bus Protocol 2/3 (SBP-2 / SBP-3)
- */
-static u8 sbp_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- /*
- * Return a IEEE 1394 SCSI Protocol identifier for loopback operations
- * This is defined in section 7.5.1 Table 362 in spc4r17
- */
- return SCSI_PROTOCOL_SBP;
-}
-
-static u32 sbp_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- int ret;
-
- /*
- * Set PROTOCOL IDENTIFIER to 3h for SBP
- */
- buf[0] = SCSI_PROTOCOL_SBP;
- /*
- * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
- * over IEEE 1394
- */
- ret = hex2bin(&buf[8], se_nacl->initiatorname, 8);
- if (ret < 0)
- pr_debug("sbp transport_id: invalid hex string\n");
-
- /*
- * The IEEE 1394 Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-
-static u32 sbp_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
- * over IEEE 1394
- *
- * The SBP Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-static char *sbp_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- /*
- * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.4 TransportID
- * for initiator ports using SCSI over SBP Serial SCSI Protocol
- *
- * The TransportID for a IEEE 1394 Initiator Port is of fixed size of
- * 24 bytes, and IEEE 1394 does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
-
- return (char *)&buf[8];
-}
-
static int sbp_count_se_tpg_luns(struct se_portal_group *tpg)
{
- int i, count = 0;
+ struct se_lun *lun;
+ int count = 0;
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- struct se_lun *se_lun = tpg->tpg_lun_list[i];
-
- if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE)
- continue;
-
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link)
count++;
- }
- spin_unlock(&tpg->tpg_lun_lock);
+ rcu_read_unlock();
return count;
}
static int sbp_update_unit_directory(struct sbp_tport *tport)
{
- int num_luns, num_entries, idx = 0, mgt_agt_addr, ret, i;
+ struct se_lun *lun;
+ int num_luns, num_entries, idx = 0, mgt_agt_addr, ret;
u32 *data;
if (tport->unit_directory.data) {
@@ -2020,28 +1901,23 @@
/* unit unique ID (leaf is just after LUNs) */
data[idx++] = 0x8d000000 | (num_luns + 1);
- spin_lock(&tport->tpg->se_tpg.tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- struct se_lun *se_lun = tport->tpg->se_tpg.tpg_lun_list[i];
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(lun, &tport->tpg->se_tpg.tpg_lun_hlist, link) {
struct se_device *dev;
int type;
-
- if (se_lun->lun_status == TRANSPORT_LUN_STATUS_FREE)
- continue;
-
- spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock);
-
- dev = se_lun->lun_se_dev;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ dev = rcu_dereference_raw(lun->lun_se_dev);
type = dev->transport->get_device_type(dev);
/* logical_unit_number */
data[idx++] = 0x14000000 |
((type << 16) & 0x1f0000) |
- (se_lun->unpacked_lun & 0xffff);
-
- spin_lock(&tport->tpg->se_tpg.tpg_lun_lock);
+ (lun->unpacked_lun & 0xffff);
}
- spin_unlock(&tport->tpg->se_tpg.tpg_lun_lock);
+ rcu_read_unlock();
/* unit unique ID leaf */
data[idx++] = 2 << 16;
@@ -2100,48 +1976,13 @@
return snprintf(buf, len, "%016llx", wwn);
}
-static struct se_node_acl *sbp_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int sbp_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct sbp_nacl *nacl;
u64 guid = 0;
- u32 nexus_depth = 1;
if (sbp_parse_wwn(name, &guid) < 0)
- return ERR_PTR(-EINVAL);
-
- se_nacl_new = sbp_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- sbp_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
-
- nacl = container_of(se_nacl, struct sbp_nacl, se_node_acl);
- nacl->guid = guid;
- sbp_format_wwn(nacl->iport_name, SBP_NAMELEN, guid);
-
- return se_nacl;
-}
-
-static void sbp_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct sbp_nacl *nacl =
- container_of(se_acl, struct sbp_nacl, se_node_acl);
-
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
+ return -EINVAL;
+ return 0;
}
static int sbp_post_link_lun(
@@ -2214,8 +2055,7 @@
goto out_free_tpg;
}
- ret = core_tpg_register(&sbp_ops, wwn, &tpg->se_tpg, tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SBP);
if (ret < 0)
goto out_unreg_mgt_agt;
@@ -2505,19 +2345,12 @@
.module = THIS_MODULE,
.name = "sbp",
.get_fabric_name = sbp_get_fabric_name,
- .get_fabric_proto_ident = sbp_get_fabric_proto_ident,
.tpg_get_wwn = sbp_get_fabric_wwn,
.tpg_get_tag = sbp_get_tag,
- .tpg_get_default_depth = sbp_get_default_depth,
- .tpg_get_pr_transport_id = sbp_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = sbp_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = sbp_parse_pr_out_transport_id,
.tpg_check_demo_mode = sbp_check_true,
.tpg_check_demo_mode_cache = sbp_check_true,
.tpg_check_demo_mode_write_protect = sbp_check_false,
.tpg_check_prod_mode_write_protect = sbp_check_false,
- .tpg_alloc_fabric_acl = sbp_alloc_fabric_acl,
- .tpg_release_fabric_acl = sbp_release_fabric_acl,
.tpg_get_inst_index = sbp_tpg_get_inst_index,
.release_cmd = sbp_release_cmd,
.shutdown_session = sbp_shutdown_session,
@@ -2526,7 +2359,6 @@
.write_pending = sbp_write_pending,
.write_pending_status = sbp_write_pending_status,
.set_default_node_attributes = sbp_set_default_node_attrs,
- .get_task_tag = sbp_get_task_tag,
.get_cmd_state = sbp_get_cmd_state,
.queue_data_in = sbp_queue_data_in,
.queue_status = sbp_queue_status,
@@ -2542,8 +2374,7 @@
.fabric_pre_unlink = sbp_pre_unlink_lun,
.fabric_make_np = NULL,
.fabric_drop_np = NULL,
- .fabric_make_nodeacl = sbp_make_nodeacl,
- .fabric_drop_nodeacl = sbp_drop_nodeacl,
+ .fabric_init_nodeacl = sbp_init_nodeacl,
.tfc_wwn_attrs = sbp_wwn_attrs,
.tfc_tpg_base_attrs = sbp_tpg_base_attrs,
diff --git a/drivers/target/sbp/sbp_target.h b/drivers/target/sbp/sbp_target.h
index 6d0d74a..73bcb12 100644
--- a/drivers/target/sbp/sbp_target.h
+++ b/drivers/target/sbp/sbp_target.h
@@ -125,7 +125,7 @@
struct sbp_session *sess;
struct list_head link;
- struct se_lun *lun;
+ u32 login_lun;
u64 status_fifo_addr;
int exclusive;
@@ -151,15 +151,6 @@
u64 reconnect_expires;
};
-struct sbp_nacl {
- /* Initiator EUI-64 */
- u64 guid;
- /* ASCII formatted GUID for SBP Initiator port */
- char iport_name[SBP_NAMELEN];
- /* Returned by sbp_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct sbp_tpg {
/* Target portal group tag for TCM */
u16 tport_tpgt;
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 8ca3737..49aba4a 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -34,7 +34,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -43,11 +42,13 @@
static sense_reason_t core_alua_check_transition(int state, int valid,
int *primary);
static int core_alua_set_tg_pt_secondary_state(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port, int explicit, int offline);
+ struct se_lun *lun, int explicit, int offline);
static char *core_alua_dump_state(int state);
+static void __target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp);
+
static u16 alua_lu_gps_counter;
static u32 alua_lu_gps_count;
@@ -145,9 +146,8 @@
target_emulate_report_target_port_groups(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *port;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
+ struct se_lun *lun;
unsigned char *buf;
u32 rd_len = 0, off;
int ext_hdr = (cmd->t_task_cdb[1] & 0x20);
@@ -222,9 +222,8 @@
rd_len += 8;
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = tg_pt_gp_mem->tg_pt;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
/*
* Start Target Port descriptor format
*
@@ -234,8 +233,8 @@
/*
* Set RELATIVE TARGET PORT IDENTIFIER
*/
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
+ buf[off++] = (lun->lun_rtpi & 0xff);
rd_len += 4;
}
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
@@ -259,15 +258,11 @@
* this CDB was received upon to determine this value individually
* for ALUA target port group.
*/
- port = cmd->se_lun->lun_sep;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (tg_pt_gp_mem) {
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
- if (tg_pt_gp)
- buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- }
+ spin_lock(&cmd->se_lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = cmd->se_lun->lun_tg_pt_gp;
+ if (tg_pt_gp)
+ buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
+ spin_unlock(&cmd->se_lun->lun_tg_pt_gp_lock);
}
transport_kunmap_data_sg(cmd);
@@ -284,10 +279,9 @@
target_emulate_set_target_port_groups(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *port, *l_port = cmd->se_lun->lun_sep;
+ struct se_lun *l_lun = cmd->se_lun;
struct se_node_acl *nacl = cmd->se_sess->se_node_acl;
struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *l_tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *l_tg_pt_gp_mem;
unsigned char *buf;
unsigned char *ptr;
sense_reason_t rc = TCM_NO_SENSE;
@@ -295,9 +289,6 @@
int alua_access_state, primary = 0, valid_states;
u16 tg_pt_id, rtpi;
- if (!l_port)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-
if (cmd->data_length < 4) {
pr_warn("SET TARGET PORT GROUPS parameter list length %u too"
" small\n", cmd->data_length);
@@ -312,29 +303,24 @@
* Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed
* for the local tg_pt_gp.
*/
- l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
- if (!l_tg_pt_gp_mem) {
- pr_err("Unable to access l_port->sep_alua_tg_pt_gp_mem\n");
- rc = TCM_UNSUPPORTED_SCSI_OPCODE;
- goto out;
- }
- spin_lock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
- l_tg_pt_gp = l_tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&l_lun->lun_tg_pt_gp_lock);
+ l_tg_pt_gp = l_lun->lun_tg_pt_gp;
if (!l_tg_pt_gp) {
- spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
- pr_err("Unable to access *l_tg_pt_gp_mem->tg_pt_gp\n");
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
+ pr_err("Unable to access l_lun->tg_pt_gp\n");
rc = TCM_UNSUPPORTED_SCSI_OPCODE;
goto out;
}
- spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) {
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
" while TPGS_EXPLICIT_ALUA is disabled\n");
rc = TCM_UNSUPPORTED_SCSI_OPCODE;
goto out;
}
valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states;
+ spin_unlock(&l_lun->lun_tg_pt_gp_lock);
ptr = &buf[4]; /* Skip over RESERVED area in header */
@@ -396,7 +382,7 @@
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
if (!core_alua_do_port_transition(tg_pt_gp,
- dev, l_port, nacl,
+ dev, l_lun, nacl,
alua_access_state, 1))
found = true;
@@ -406,6 +392,8 @@
}
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
} else {
+ struct se_lun *lun;
+
/*
* Extract the RELATIVE TARGET PORT IDENTIFIER to identify
* the Target Port in question for the the incoming
@@ -417,17 +405,16 @@
* for the struct se_device storage object.
*/
spin_lock(&dev->se_port_lock);
- list_for_each_entry(port, &dev->dev_sep_list,
- sep_list) {
- if (port->sep_rtpi != rtpi)
+ list_for_each_entry(lun, &dev->dev_sep_list,
+ lun_dev_link) {
+ if (lun->lun_rtpi != rtpi)
continue;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
-
+ // XXX: racy unlock
spin_unlock(&dev->se_port_lock);
if (!core_alua_set_tg_pt_secondary_state(
- tg_pt_gp_mem, port, 1, 1))
+ lun, 1, 1))
found = true;
spin_lock(&dev->se_port_lock);
@@ -696,9 +683,7 @@
struct se_device *dev = cmd->se_dev;
unsigned char *cdb = cmd->t_task_cdb;
struct se_lun *lun = cmd->se_lun;
- struct se_port *port = lun->lun_sep;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
int out_alua_state, nonop_delay_msecs;
if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
@@ -706,33 +691,27 @@
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
- if (!port)
- return 0;
/*
* First, check for a struct se_port specific secondary ALUA target port
* access state: OFFLINE
*/
- if (atomic_read(&port->sep_tg_pt_secondary_offline)) {
+ if (atomic_read(&lun->lun_tg_pt_secondary_offline)) {
pr_debug("ALUA: Got secondary offline status for local"
" target port\n");
set_ascq(cmd, ASCQ_04H_ALUA_OFFLINE);
return TCM_CHECK_CONDITION_NOT_READY;
}
- /*
- * Second, obtain the struct t10_alua_tg_pt_gp_member pointer to the
- * ALUA target port group, to obtain current ALUA access state.
- * Otherwise look for the underlying struct se_device association with
- * a ALUA logical unit group.
- */
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
+
+ if (!lun->lun_tg_pt_gp)
return 0;
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
out_alua_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+
+ // XXX: keeps using tg_pt_gp witout reference after unlock
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
/*
* Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional
* statement so the compiler knows explicitly to check this case first.
@@ -764,7 +743,7 @@
break;
/*
* OFFLINE is a secondary ALUA target port group access state, that is
- * handled above with struct se_port->sep_tg_pt_secondary_offline=1
+ * handled above with struct se_lun->lun_tg_pt_secondary_offline=1
*/
case ALUA_ACCESS_STATE_OFFLINE:
default:
@@ -906,10 +885,6 @@
}
EXPORT_SYMBOL(core_alua_check_nonop_delay);
-/*
- * Called with tg_pt_gp->tg_pt_gp_md_mutex or tg_pt_gp_mem->sep_tg_pt_md_mutex
- *
- */
static int core_alua_write_tpg_metadata(
const char *path,
unsigned char *md_buf,
@@ -965,22 +940,15 @@
return rc;
}
-static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
+static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp)
{
- struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
- struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work);
- struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
struct se_dev_entry *se_deve;
+ struct se_lun *lun;
struct se_lun_acl *lacl;
- struct se_port *port;
- struct t10_alua_tg_pt_gp_member *mem;
- bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
- ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = mem->tg_pt;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
/*
* After an implicit target port asymmetric access state
* change, a device server shall establish a unit attention
@@ -995,38 +963,58 @@
* every I_T nexus other than the I_T nexus on which the SET
* TARGET PORT GROUPS command
*/
- atomic_inc_mb(&mem->tg_pt_gp_mem_ref_cnt);
+ if (!percpu_ref_tryget_live(&lun->lun_ref))
+ continue;
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
- spin_lock_bh(&port->sep_alua_lock);
- list_for_each_entry(se_deve, &port->sep_alua_list,
- alua_port_list) {
- lacl = se_deve->se_lun_acl;
+ spin_lock(&lun->lun_deve_lock);
+ list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link) {
+ lacl = rcu_dereference_check(se_deve->se_lun_acl,
+ lockdep_is_held(&lun->lun_deve_lock));
+
+ /*
+ * spc4r37 p.242:
+ * After an explicit target port asymmetric access
+ * state change, a device server shall establish a
+ * unit attention condition with the additional sense
+ * code set to ASYMMETRIC ACCESS STATE CHANGED for
+ * the initiator port associated with every I_T nexus
+ * other than the I_T nexus on which the SET TARGET
+ * PORT GROUPS command was received.
+ */
+ if ((tg_pt_gp->tg_pt_gp_alua_access_status ==
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
+ (tg_pt_gp->tg_pt_gp_alua_lun != NULL) &&
+ (tg_pt_gp->tg_pt_gp_alua_lun == lun))
+ continue;
+
/*
* se_deve->se_lun_acl pointer may be NULL for a
* entry created without explicit Node+MappedLUN ACLs
*/
- if (!lacl)
+ if (lacl && (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) &&
+ (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl))
continue;
- if ((tg_pt_gp->tg_pt_gp_alua_access_status ==
- ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
- (tg_pt_gp->tg_pt_gp_alua_nacl != NULL) &&
- (tg_pt_gp->tg_pt_gp_alua_nacl == lacl->se_lun_nacl) &&
- (tg_pt_gp->tg_pt_gp_alua_port != NULL) &&
- (tg_pt_gp->tg_pt_gp_alua_port == port))
- continue;
-
- core_scsi3_ua_allocate(lacl->se_lun_nacl,
- se_deve->mapped_lun, 0x2A,
+ core_scsi3_ua_allocate(se_deve, 0x2A,
ASCQ_2AH_ASYMMETRIC_ACCESS_STATE_CHANGED);
}
- spin_unlock_bh(&port->sep_alua_lock);
+ spin_unlock(&lun->lun_deve_lock);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- atomic_dec_mb(&mem->tg_pt_gp_mem_ref_cnt);
+ percpu_ref_put(&lun->lun_ref);
}
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
+}
+
+static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
+{
+ struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
+ struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work);
+ struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
+ bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
+
/*
* Update the ALUA metadata buf that has been allocated in
* core_alua_do_port_transition(), this metadata will be written
@@ -1056,6 +1044,9 @@
tg_pt_gp->tg_pt_gp_id,
core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state),
core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state));
+
+ core_alua_queue_state_change_ua(tg_pt_gp);
+
spin_lock(&dev->t10_alua.tg_pt_gps_lock);
atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt);
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1108,6 +1099,8 @@
ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
+ core_alua_queue_state_change_ua(tg_pt_gp);
+
/*
* Check for the optional ALUA primary state transition delay
*/
@@ -1142,7 +1135,7 @@
int core_alua_do_port_transition(
struct t10_alua_tg_pt_gp *l_tg_pt_gp,
struct se_device *l_dev,
- struct se_port *l_port,
+ struct se_lun *l_lun,
struct se_node_acl *l_nacl,
int new_state,
int explicit)
@@ -1172,7 +1165,7 @@
* core_alua_do_transition_tg_pt() will always return
* success.
*/
- l_tg_pt_gp->tg_pt_gp_alua_port = l_port;
+ l_tg_pt_gp->tg_pt_gp_alua_lun = l_lun;
l_tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl;
rc = core_alua_do_transition_tg_pt(l_tg_pt_gp,
new_state, explicit);
@@ -1211,10 +1204,10 @@
continue;
if (l_tg_pt_gp == tg_pt_gp) {
- tg_pt_gp->tg_pt_gp_alua_port = l_port;
+ tg_pt_gp->tg_pt_gp_alua_lun = l_lun;
tg_pt_gp->tg_pt_gp_alua_nacl = l_nacl;
} else {
- tg_pt_gp->tg_pt_gp_alua_port = NULL;
+ tg_pt_gp->tg_pt_gp_alua_lun = NULL;
tg_pt_gp->tg_pt_gp_alua_nacl = NULL;
}
atomic_inc_mb(&tg_pt_gp->tg_pt_gp_ref_cnt);
@@ -1251,22 +1244,20 @@
return rc;
}
-/*
- * Called with tg_pt_gp_mem->sep_tg_pt_md_mutex held
- */
-static int core_alua_update_tpg_secondary_metadata(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port)
+static int core_alua_update_tpg_secondary_metadata(struct se_lun *lun)
{
+ struct se_portal_group *se_tpg = lun->lun_tpg;
unsigned char *md_buf;
- struct se_portal_group *se_tpg = port->sep_tpg;
char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN];
int len, rc;
+ mutex_lock(&lun->lun_tg_pt_md_mutex);
+
md_buf = kzalloc(ALUA_MD_BUF_LEN, GFP_KERNEL);
if (!md_buf) {
pr_err("Unable to allocate buf for ALUA metadata\n");
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_unlock;
}
memset(path, 0, ALUA_METADATA_PATH_LEN);
@@ -1281,32 +1272,33 @@
len = snprintf(md_buf, ALUA_MD_BUF_LEN, "alua_tg_pt_offline=%d\n"
"alua_tg_pt_status=0x%02x\n",
- atomic_read(&port->sep_tg_pt_secondary_offline),
- port->sep_tg_pt_secondary_stat);
+ atomic_read(&lun->lun_tg_pt_secondary_offline),
+ lun->lun_tg_pt_secondary_stat);
- snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%u",
+ snprintf(path, ALUA_METADATA_PATH_LEN, "/var/target/alua/%s/%s/lun_%llu",
se_tpg->se_tpg_tfo->get_fabric_name(), wwn,
- port->sep_lun->unpacked_lun);
+ lun->unpacked_lun);
rc = core_alua_write_tpg_metadata(path, md_buf, len);
kfree(md_buf);
+out_unlock:
+ mutex_unlock(&lun->lun_tg_pt_md_mutex);
return rc;
}
static int core_alua_set_tg_pt_secondary_state(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port,
+ struct se_lun *lun,
int explicit,
int offline)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
int trans_delay_msecs;
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (!tg_pt_gp) {
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
pr_err("Unable to complete secondary state"
" transition\n");
return -EINVAL;
@@ -1314,14 +1306,14 @@
trans_delay_msecs = tg_pt_gp->tg_pt_gp_trans_delay_msecs;
/*
* Set the secondary ALUA target port access state to OFFLINE
- * or release the previously secondary state for struct se_port
+ * or release the previously secondary state for struct se_lun
*/
if (offline)
- atomic_set(&port->sep_tg_pt_secondary_offline, 1);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 1);
else
- atomic_set(&port->sep_tg_pt_secondary_offline, 0);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
- port->sep_tg_pt_secondary_stat = (explicit) ?
+ lun->lun_tg_pt_secondary_stat = (explicit) ?
ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
@@ -1330,7 +1322,7 @@
"implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE");
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
/*
* Do the optional transition delay after we set the secondary
* ALUA access state.
@@ -1341,11 +1333,8 @@
* See if we need to update the ALUA fabric port metadata for
* secondary state and status
*/
- if (port->sep_tg_pt_secondary_write_md) {
- mutex_lock(&port->sep_tg_pt_md_mutex);
- core_alua_update_tpg_secondary_metadata(tg_pt_gp_mem, port);
- mutex_unlock(&port->sep_tg_pt_md_mutex);
- }
+ if (lun->lun_tg_pt_secondary_write_md)
+ core_alua_update_tpg_secondary_metadata(lun);
return 0;
}
@@ -1699,7 +1688,7 @@
return NULL;
}
INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_list);
- INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_mem_list);
+ INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_lun_list);
mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex);
spin_lock_init(&tg_pt_gp->tg_pt_gp_lock);
atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0);
@@ -1793,32 +1782,11 @@
return 0;
}
-struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem(
- struct se_port *port)
-{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
-
- tg_pt_gp_mem = kmem_cache_zalloc(t10_alua_tg_pt_gp_mem_cache,
- GFP_KERNEL);
- if (!tg_pt_gp_mem) {
- pr_err("Unable to allocate struct t10_alua_tg_pt_gp_member\n");
- return ERR_PTR(-ENOMEM);
- }
- INIT_LIST_HEAD(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- spin_lock_init(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- atomic_set(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt, 0);
-
- tg_pt_gp_mem->tg_pt = port;
- port->sep_alua_tg_pt_gp_mem = tg_pt_gp_mem;
-
- return tg_pt_gp_mem;
-}
-
void core_alua_free_tg_pt_gp(
struct t10_alua_tg_pt_gp *tg_pt_gp)
{
struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *tg_pt_gp_mem_tmp;
+ struct se_lun *lun, *next;
/*
* Once we have reached this point, config_item_put() has already
@@ -1849,30 +1817,24 @@
* struct se_port.
*/
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry_safe(tg_pt_gp_mem, tg_pt_gp_mem_tmp,
- &tg_pt_gp->tg_pt_gp_mem_list, tg_pt_gp_mem_list) {
- if (tg_pt_gp_mem->tg_pt_gp_assoc) {
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp->tg_pt_gp_members--;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
- }
+ list_for_each_entry_safe(lun, next,
+ &tg_pt_gp->tg_pt_gp_lun_list, lun_tg_pt_gp_link) {
+ list_del_init(&lun->lun_tg_pt_gp_link);
+ tg_pt_gp->tg_pt_gp_members--;
+
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
/*
- * tg_pt_gp_mem is associated with a single
- * se_port->sep_alua_tg_pt_gp_mem, and is released via
- * core_alua_free_tg_pt_gp_mem().
- *
* If the passed tg_pt_gp does NOT match the default_tg_pt_gp,
* assume we want to re-associate a given tg_pt_gp_mem with
* default_tg_pt_gp.
*/
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_lock(&lun->lun_tg_pt_gp_lock);
if (tg_pt_gp != dev->t10_alua.default_tg_pt_gp) {
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
+ __target_attach_tg_pt_gp(lun,
dev->t10_alua.default_tg_pt_gp);
} else
- tg_pt_gp_mem->tg_pt_gp = NULL;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ lun->lun_tg_pt_gp = NULL;
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
}
@@ -1881,35 +1843,6 @@
kmem_cache_free(t10_alua_tg_pt_gp_cache, tg_pt_gp);
}
-void core_alua_free_tg_pt_gp_mem(struct se_port *port)
-{
- struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
-
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return;
-
- while (atomic_read(&tg_pt_gp_mem->tg_pt_gp_mem_ref_cnt))
- cpu_relax();
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
- if (tg_pt_gp) {
- spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- if (tg_pt_gp_mem->tg_pt_gp_assoc) {
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp->tg_pt_gp_members--;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
- }
- spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
- tg_pt_gp_mem->tg_pt_gp = NULL;
- }
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
-
- kmem_cache_free(t10_alua_tg_pt_gp_mem_cache, tg_pt_gp_mem);
-}
-
static struct t10_alua_tg_pt_gp *core_alua_get_tg_pt_gp_by_name(
struct se_device *dev, const char *name)
{
@@ -1943,50 +1876,65 @@
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
}
-/*
- * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held
- */
-void __core_alua_attach_tg_pt_gp_mem(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct t10_alua_tg_pt_gp *tg_pt_gp)
+static void __target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
{
+ struct se_dev_entry *se_deve;
+
+ assert_spin_locked(&lun->lun_tg_pt_gp_lock);
+
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- tg_pt_gp_mem->tg_pt_gp = tg_pt_gp;
- tg_pt_gp_mem->tg_pt_gp_assoc = 1;
- list_add_tail(&tg_pt_gp_mem->tg_pt_gp_mem_list,
- &tg_pt_gp->tg_pt_gp_mem_list);
+ lun->lun_tg_pt_gp = tg_pt_gp;
+ list_add_tail(&lun->lun_tg_pt_gp_link, &tg_pt_gp->tg_pt_gp_lun_list);
tg_pt_gp->tg_pt_gp_members++;
+ spin_lock(&lun->lun_deve_lock);
+ list_for_each_entry(se_deve, &lun->lun_deve_list, lun_link)
+ core_scsi3_ua_allocate(se_deve, 0x3f,
+ ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED);
+ spin_unlock(&lun->lun_deve_lock);
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
}
-/*
- * Called with struct t10_alua_tg_pt_gp_member->tg_pt_gp_mem_lock held
- */
-static void __core_alua_drop_tg_pt_gp_mem(
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct t10_alua_tg_pt_gp *tg_pt_gp)
+void target_attach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
{
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ __target_attach_tg_pt_gp(lun, tg_pt_gp);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
+}
+
+static void __target_detach_tg_pt_gp(struct se_lun *lun,
+ struct t10_alua_tg_pt_gp *tg_pt_gp)
+{
+ assert_spin_locked(&lun->lun_tg_pt_gp_lock);
+
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_del(&tg_pt_gp_mem->tg_pt_gp_mem_list);
- tg_pt_gp_mem->tg_pt_gp = NULL;
- tg_pt_gp_mem->tg_pt_gp_assoc = 0;
+ list_del_init(&lun->lun_tg_pt_gp_link);
tg_pt_gp->tg_pt_gp_members--;
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
+
+ lun->lun_tg_pt_gp = NULL;
}
-ssize_t core_alua_show_tg_pt_gp_info(struct se_port *port, char *page)
+void target_detach_tg_pt_gp(struct se_lun *lun)
+{
+ struct t10_alua_tg_pt_gp *tg_pt_gp;
+
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
+ if (tg_pt_gp)
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
+}
+
+ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *lun, char *page)
{
struct config_item *tg_pt_ci;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
ssize_t len = 0;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return len;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp) {
tg_pt_ci = &tg_pt_gp->tg_pt_gp_group.cg_item;
len += sprintf(page, "TG Port Alias: %s\nTG Port Group ID:"
@@ -1998,34 +1946,33 @@
&tg_pt_gp->tg_pt_gp_alua_access_state)),
core_alua_dump_status(
tg_pt_gp->tg_pt_gp_alua_access_status),
- (atomic_read(&port->sep_tg_pt_secondary_offline)) ?
+ atomic_read(&lun->lun_tg_pt_secondary_offline) ?
"Offline" : "None",
- core_alua_dump_status(port->sep_tg_pt_secondary_stat));
+ core_alua_dump_status(lun->lun_tg_pt_secondary_stat));
}
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
return len;
}
ssize_t core_alua_store_tg_pt_gp_info(
- struct se_port *port,
+ struct se_lun *lun,
const char *page,
size_t count)
{
- struct se_portal_group *tpg;
- struct se_lun *lun;
- struct se_device *dev = port->sep_lun->lun_se_dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
struct t10_alua_tg_pt_gp *tg_pt_gp = NULL, *tg_pt_gp_new = NULL;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
unsigned char buf[TG_PT_GROUP_NAME_BUF];
int move = 0;
- tpg = port->sep_tpg;
- lun = port->sep_lun;
-
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return 0;
+ if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH ||
+ (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ return -ENODEV;
if (count > TG_PT_GROUP_NAME_BUF) {
pr_err("ALUA Target Port Group alias too large!\n");
@@ -2049,8 +1996,8 @@
return -ENODEV;
}
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp) {
/*
* Clearing an existing tg_pt_gp association, and replacing
@@ -2068,24 +2015,19 @@
&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id);
- __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp);
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
+ __target_attach_tg_pt_gp(lun,
dev->t10_alua.default_tg_pt_gp);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
return count;
}
- /*
- * Removing existing association of tg_pt_gp_mem with tg_pt_gp
- */
- __core_alua_drop_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp);
+ __target_detach_tg_pt_gp(lun, tg_pt_gp);
move = 1;
}
- /*
- * Associate tg_pt_gp_mem with tg_pt_gp_new.
- */
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem, tg_pt_gp_new);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+
+ __target_attach_tg_pt_gp(lun, tg_pt_gp_new);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
pr_debug("Target_Core_ConfigFS: %s %s/tpgt_%hu/%s to ALUA"
" Target Port Group: alua/%s, ID: %hu\n", (move) ?
"Moving" : "Adding", tpg->se_tpg_tfo->tpg_get_wwn(tpg),
@@ -2268,11 +2210,8 @@
ssize_t core_alua_show_offline_bit(struct se_lun *lun, char *page)
{
- if (!lun->lun_sep)
- return -ENODEV;
-
return sprintf(page, "%d\n",
- atomic_read(&lun->lun_sep->sep_tg_pt_secondary_offline));
+ atomic_read(&lun->lun_tg_pt_secondary_offline));
}
ssize_t core_alua_store_offline_bit(
@@ -2280,11 +2219,16 @@
const char *page,
size_t count)
{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
unsigned long tmp;
int ret;
- if (!lun->lun_sep)
+ if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH ||
+ (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
return -ENODEV;
ret = kstrtoul(page, 0, &tmp);
@@ -2297,14 +2241,8 @@
tmp);
return -EINVAL;
}
- tg_pt_gp_mem = lun->lun_sep->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem) {
- pr_err("Unable to locate *tg_pt_gp_mem\n");
- return -EINVAL;
- }
- ret = core_alua_set_tg_pt_secondary_state(tg_pt_gp_mem,
- lun->lun_sep, 0, (int)tmp);
+ ret = core_alua_set_tg_pt_secondary_state(lun, 0, (int)tmp);
if (ret < 0)
return -EINVAL;
@@ -2315,7 +2253,7 @@
struct se_lun *lun,
char *page)
{
- return sprintf(page, "%d\n", lun->lun_sep->sep_tg_pt_secondary_stat);
+ return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_stat);
}
ssize_t core_alua_store_secondary_status(
@@ -2338,7 +2276,7 @@
tmp);
return -EINVAL;
}
- lun->lun_sep->sep_tg_pt_secondary_stat = (int)tmp;
+ lun->lun_tg_pt_secondary_stat = (int)tmp;
return count;
}
@@ -2347,8 +2285,7 @@
struct se_lun *lun,
char *page)
{
- return sprintf(page, "%d\n",
- lun->lun_sep->sep_tg_pt_secondary_write_md);
+ return sprintf(page, "%d\n", lun->lun_tg_pt_secondary_write_md);
}
ssize_t core_alua_store_secondary_write_metadata(
@@ -2369,7 +2306,7 @@
" %lu\n", tmp);
return -EINVAL;
}
- lun->lun_sep->sep_tg_pt_secondary_write_md = (int)tmp;
+ lun->lun_tg_pt_secondary_write_md = (int)tmp;
return count;
}
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index 0a7d65e..9b250f9 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -85,7 +85,6 @@
extern struct kmem_cache *t10_alua_lu_gp_cache;
extern struct kmem_cache *t10_alua_lu_gp_mem_cache;
extern struct kmem_cache *t10_alua_tg_pt_gp_cache;
-extern struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
extern struct kmem_cache *t10_alua_lba_map_cache;
extern struct kmem_cache *t10_alua_lba_map_mem_cache;
@@ -94,7 +93,7 @@
extern sense_reason_t target_emulate_report_referrals(struct se_cmd *);
extern int core_alua_check_nonop_delay(struct se_cmd *);
extern int core_alua_do_port_transition(struct t10_alua_tg_pt_gp *,
- struct se_device *, struct se_port *,
+ struct se_device *, struct se_lun *,
struct se_node_acl *, int, int);
extern char *core_alua_dump_status(int);
extern struct t10_alua_lba_map *core_alua_allocate_lba_map(
@@ -117,14 +116,11 @@
extern struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(
struct se_device *, const char *, int);
extern int core_alua_set_tg_pt_gp_id(struct t10_alua_tg_pt_gp *, u16);
-extern struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem(
- struct se_port *);
extern void core_alua_free_tg_pt_gp(struct t10_alua_tg_pt_gp *);
-extern void core_alua_free_tg_pt_gp_mem(struct se_port *);
-extern void __core_alua_attach_tg_pt_gp_mem(struct t10_alua_tg_pt_gp_member *,
- struct t10_alua_tg_pt_gp *);
-extern ssize_t core_alua_show_tg_pt_gp_info(struct se_port *, char *);
-extern ssize_t core_alua_store_tg_pt_gp_info(struct se_port *, const char *,
+extern void target_detach_tg_pt_gp(struct se_lun *);
+extern void target_attach_tg_pt_gp(struct se_lun *, struct t10_alua_tg_pt_gp *);
+extern ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *, char *);
+extern ssize_t core_alua_store_tg_pt_gp_info(struct se_lun *, const char *,
size_t);
extern ssize_t core_alua_show_access_type(struct t10_alua_tg_pt_gp *, char *);
extern ssize_t core_alua_store_access_type(struct t10_alua_tg_pt_gp *,
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index e7b0430..0b0de36 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -41,7 +41,6 @@
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -51,15 +50,26 @@
#include "target_core_xcopy.h"
#define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
-static void target_core_setup_##_name##_cit(struct se_subsystem_api *sa) \
+static void target_core_setup_##_name##_cit(struct target_backend *tb) \
{ \
- struct target_backend_cits *tbc = &sa->tb_cits; \
- struct config_item_type *cit = &tbc->tb_##_name##_cit; \
+ struct config_item_type *cit = &tb->tb_##_name##_cit; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = _attrs; \
- cit->ct_owner = sa->owner; \
+ cit->ct_owner = tb->ops->owner; \
+ pr_debug("Setup generic %s\n", __stringify(_name)); \
+}
+
+#define TB_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \
+static void target_core_setup_##_name##_cit(struct target_backend *tb) \
+{ \
+ struct config_item_type *cit = &tb->tb_##_name##_cit; \
+ \
+ cit->ct_item_ops = _item_ops; \
+ cit->ct_group_ops = _group_ops; \
+ cit->ct_attrs = tb->ops->tb_##_name##_attrs; \
+ cit->ct_owner = tb->ops->owner; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
@@ -92,7 +102,7 @@
char *page)
{
return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s"
- " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_CONFIGFS_VERSION,
+ " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION,
utsname()->sysname, utsname()->machine);
}
@@ -116,7 +126,7 @@
mutex_lock(&g_tf_lock);
list_for_each_entry(tf, &g_tf_list, tf_list) {
- if (!strcmp(tf->tf_name, name)) {
+ if (!strcmp(tf->tf_ops->name, name)) {
atomic_inc(&tf->tf_access_cnt);
mutex_unlock(&g_tf_lock);
return tf;
@@ -193,29 +203,24 @@
return ERR_PTR(-EINVAL);
}
pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:"
- " %s\n", tf->tf_name);
+ " %s\n", tf->tf_ops->name);
/*
* On a successful target_core_get_fabric() look, the returned
* struct target_fabric_configfs *tf will contain a usage reference.
*/
pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n",
- &tf->tf_cit_tmpl.tfc_wwn_cit);
+ &tf->tf_wwn_cit);
tf->tf_group.default_groups = tf->tf_default_groups;
tf->tf_group.default_groups[0] = &tf->tf_disc_group;
tf->tf_group.default_groups[1] = NULL;
- config_group_init_type_name(&tf->tf_group, name,
- &tf->tf_cit_tmpl.tfc_wwn_cit);
+ config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit);
config_group_init_type_name(&tf->tf_disc_group, "discovery_auth",
- &tf->tf_cit_tmpl.tfc_discovery_cit);
+ &tf->tf_discovery_cit);
pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:"
" %s\n", tf->tf_group.cg_item.ci_name);
- tf->tf_fabric = &tf->tf_group.cg_item;
- pr_debug("Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric"
- " for %s\n", name);
-
return &tf->tf_group;
}
@@ -236,13 +241,9 @@
" tf list\n", config_item_name(item));
pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:"
- " %s\n", tf->tf_name);
+ " %s\n", tf->tf_ops->name);
atomic_dec(&tf->tf_access_cnt);
- pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing"
- " tf->tf_fabric for %s\n", tf->tf_name);
- tf->tf_fabric = NULL;
-
pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci"
" %s\n", config_item_name(item));
@@ -318,10 +319,6 @@
pr_err("Missing tfo->get_fabric_name()\n");
return -EINVAL;
}
- if (!tfo->get_fabric_proto_ident) {
- pr_err("Missing tfo->get_fabric_proto_ident()\n");
- return -EINVAL;
- }
if (!tfo->tpg_get_wwn) {
pr_err("Missing tfo->tpg_get_wwn()\n");
return -EINVAL;
@@ -330,18 +327,6 @@
pr_err("Missing tfo->tpg_get_tag()\n");
return -EINVAL;
}
- if (!tfo->tpg_get_default_depth) {
- pr_err("Missing tfo->tpg_get_default_depth()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_get_pr_transport_id) {
- pr_err("Missing tfo->tpg_get_pr_transport_id()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_get_pr_transport_id_len) {
- pr_err("Missing tfo->tpg_get_pr_transport_id_len()\n");
- return -EINVAL;
- }
if (!tfo->tpg_check_demo_mode) {
pr_err("Missing tfo->tpg_check_demo_mode()\n");
return -EINVAL;
@@ -358,14 +343,6 @@
pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n");
return -EINVAL;
}
- if (!tfo->tpg_alloc_fabric_acl) {
- pr_err("Missing tfo->tpg_alloc_fabric_acl()\n");
- return -EINVAL;
- }
- if (!tfo->tpg_release_fabric_acl) {
- pr_err("Missing tfo->tpg_release_fabric_acl()\n");
- return -EINVAL;
- }
if (!tfo->tpg_get_inst_index) {
pr_err("Missing tfo->tpg_get_inst_index()\n");
return -EINVAL;
@@ -398,10 +375,6 @@
pr_err("Missing tfo->set_default_node_attributes()\n");
return -EINVAL;
}
- if (!tfo->get_task_tag) {
- pr_err("Missing tfo->get_task_tag()\n");
- return -EINVAL;
- }
if (!tfo->get_cmd_state) {
pr_err("Missing tfo->get_cmd_state()\n");
return -EINVAL;
@@ -464,15 +437,7 @@
INIT_LIST_HEAD(&tf->tf_list);
atomic_set(&tf->tf_access_cnt, 0);
-
- /*
- * Setup the default generic struct config_item_type's (cits) in
- * struct target_fabric_configfs->tf_cit_tmpl
- */
- tf->tf_module = fo->module;
- snprintf(tf->tf_name, TARGET_FABRIC_NAME_SIZE, "%s", fo->name);
-
- tf->tf_ops = *fo;
+ tf->tf_ops = fo;
target_fabric_setup_cits(tf);
mutex_lock(&g_tf_lock);
@@ -489,7 +454,7 @@
mutex_lock(&g_tf_lock);
list_for_each_entry(t, &g_tf_list, tf_list) {
- if (!strcmp(t->tf_name, fo->name)) {
+ if (!strcmp(t->tf_ops->name, fo->name)) {
BUG_ON(atomic_read(&t->tf_access_cnt));
list_del(&t->tf_list);
kfree(t);
@@ -505,16 +470,605 @@
//############################################################################*/
/* Start functions for struct config_item_type tb_dev_attrib_cit */
+#define DEF_TB_DEV_ATTRIB_SHOW(_name) \
+static ssize_t show_##_name(struct se_dev_attrib *da, char *page) \
+{ \
+ return snprintf(page, PAGE_SIZE, "%u\n", da->_name); \
+}
+
+DEF_TB_DEV_ATTRIB_SHOW(emulate_model_alias);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_dpo);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_write);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_read);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_write_cache);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_ua_intlck_ctrl);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tas);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tpu);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_tpws);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_caw);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_3pc);
+DEF_TB_DEV_ATTRIB_SHOW(pi_prot_type);
+DEF_TB_DEV_ATTRIB_SHOW(hw_pi_prot_type);
+DEF_TB_DEV_ATTRIB_SHOW(pi_prot_format);
+DEF_TB_DEV_ATTRIB_SHOW(enforce_pr_isids);
+DEF_TB_DEV_ATTRIB_SHOW(is_nonrot);
+DEF_TB_DEV_ATTRIB_SHOW(emulate_rest_reord);
+DEF_TB_DEV_ATTRIB_SHOW(force_pr_aptpl);
+DEF_TB_DEV_ATTRIB_SHOW(hw_block_size);
+DEF_TB_DEV_ATTRIB_SHOW(block_size);
+DEF_TB_DEV_ATTRIB_SHOW(hw_max_sectors);
+DEF_TB_DEV_ATTRIB_SHOW(optimal_sectors);
+DEF_TB_DEV_ATTRIB_SHOW(hw_queue_depth);
+DEF_TB_DEV_ATTRIB_SHOW(queue_depth);
+DEF_TB_DEV_ATTRIB_SHOW(max_unmap_lba_count);
+DEF_TB_DEV_ATTRIB_SHOW(max_unmap_block_desc_count);
+DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity);
+DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity_alignment);
+DEF_TB_DEV_ATTRIB_SHOW(max_write_same_len);
+
+#define DEF_TB_DEV_ATTRIB_STORE_U32(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ u32 val; \
+ int ret; \
+ \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret < 0) \
+ return ret; \
+ da->_name = val; \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_lba_count);
+DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_block_desc_count);
+DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity);
+DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity_alignment);
+DEF_TB_DEV_ATTRIB_STORE_U32(max_write_same_len);
+
+#define DEF_TB_DEV_ATTRIB_STORE_BOOL(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ bool flag; \
+ int ret; \
+ \
+ ret = strtobool(page, &flag); \
+ if (ret < 0) \
+ return ret; \
+ da->_name = flag; \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_fua_write);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_caw);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_3pc);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(enforce_pr_isids);
+DEF_TB_DEV_ATTRIB_STORE_BOOL(is_nonrot);
+
+#define DEF_TB_DEV_ATTRIB_STORE_STUB(_name) \
+static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\
+ size_t count) \
+{ \
+ printk_once(KERN_WARNING \
+ "ignoring deprecated ##_name## attribute\n"); \
+ return count; \
+}
+
+DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_dpo);
+DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_fua_read);
+
+static void dev_set_t10_wwn_model_alias(struct se_device *dev)
+{
+ const char *configname;
+
+ configname = config_item_name(&dev->dev_group.cg_item);
+ if (strlen(configname) >= 16) {
+ pr_warn("dev[%p]: Backstore name '%s' is too long for "
+ "INQUIRY_MODEL, truncating to 16 bytes\n", dev,
+ configname);
+ }
+ snprintf(&dev->t10_wwn.model[0], 16, "%s", configname);
+}
+
+static ssize_t store_emulate_model_alias(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ bool flag;
+ int ret;
+
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change model alias"
+ " while export_count is %d\n",
+ dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag) {
+ dev_set_t10_wwn_model_alias(dev);
+ } else {
+ strncpy(&dev->t10_wwn.model[0],
+ dev->transport->inquiry_prod, 16);
+ }
+ da->emulate_model_alias = flag;
+ return count;
+}
+
+static ssize_t store_emulate_write_cache(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag && da->da_dev->transport->get_write_cache) {
+ pr_err("emulate_write_cache not supported for this device\n");
+ return -EINVAL;
+ }
+
+ da->emulate_write_cache = flag;
+ pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_ua_intlck_ctrl(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (val != 0 && val != 1 && val != 2) {
+ pr_err("Illegal value %d\n", val);
+ return -EINVAL;
+ }
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device"
+ " UA_INTRLCK_CTRL while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ da->emulate_ua_intlck_ctrl = val;
+ pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n",
+ da->da_dev, val);
+ return count;
+}
+
+static ssize_t store_emulate_tas(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device TAS while"
+ " export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ da->emulate_tas = flag;
+ pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n",
+ da->da_dev, flag ? "Enabled" : "Disabled");
+
+ return count;
+}
+
+static ssize_t store_emulate_tpu(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * We expect this value to be non-zero when generic Block Layer
+ * Discard supported is detected iblock_create_virtdevice().
+ */
+ if (flag && !da->max_unmap_block_desc_count) {
+ pr_err("Generic Block Discard not supported\n");
+ return -ENOSYS;
+ }
+
+ da->emulate_tpu = flag;
+ pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_tpws(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * We expect this value to be non-zero when generic Block Layer
+ * Discard supported is detected iblock_create_virtdevice().
+ */
+ if (flag && !da->max_unmap_block_desc_count) {
+ pr_err("Generic Block Discard not supported\n");
+ return -ENOSYS;
+ }
+
+ da->emulate_tpws = flag;
+ pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_pi_prot_type(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ int old_prot = da->pi_prot_type, ret;
+ struct se_device *dev = da->da_dev;
+ u32 flag;
+
+ ret = kstrtou32(page, 0, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag != 0 && flag != 1 && flag != 2 && flag != 3) {
+ pr_err("Illegal value %d for pi_prot_type\n", flag);
+ return -EINVAL;
+ }
+ if (flag == 2) {
+ pr_err("DIF TYPE2 protection currently not supported\n");
+ return -ENOSYS;
+ }
+ if (da->hw_pi_prot_type) {
+ pr_warn("DIF protection enabled on underlying hardware,"
+ " ignoring\n");
+ return count;
+ }
+ if (!dev->transport->init_prot || !dev->transport->free_prot) {
+ /* 0 is only allowed value for non-supporting backends */
+ if (flag == 0)
+ return 0;
+
+ pr_err("DIF protection not supported by backend: %s\n",
+ dev->transport->name);
+ return -ENOSYS;
+ }
+ if (!(dev->dev_flags & DF_CONFIGURED)) {
+ pr_err("DIF protection requires device to be configured\n");
+ return -ENODEV;
+ }
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device PROT type while"
+ " export_count is %d\n", dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ da->pi_prot_type = flag;
+
+ if (flag && !old_prot) {
+ ret = dev->transport->init_prot(dev);
+ if (ret) {
+ da->pi_prot_type = old_prot;
+ return ret;
+ }
+
+ } else if (!flag && old_prot) {
+ dev->transport->free_prot(dev);
+ }
+
+ pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag);
+ return count;
+}
+
+static ssize_t store_pi_prot_format(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (!flag)
+ return count;
+
+ if (!dev->transport->format_prot) {
+ pr_err("DIF protection format not supported by backend %s\n",
+ dev->transport->name);
+ return -ENOSYS;
+ }
+ if (!(dev->dev_flags & DF_CONFIGURED)) {
+ pr_err("DIF protection format requires device to be configured\n");
+ return -ENODEV;
+ }
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to format SE Device PROT type while"
+ " export_count is %d\n", dev, dev->export_count);
+ return -EINVAL;
+ }
+
+ ret = dev->transport->format_prot(dev);
+ if (ret)
+ return ret;
+
+ pr_debug("dev[%p]: SE Device Protection Format complete\n", dev);
+ return count;
+}
+
+static ssize_t store_force_pr_aptpl(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to set force_pr_aptpl while"
+ " export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+
+ da->force_pr_aptpl = flag;
+ pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag);
+ return count;
+}
+
+static ssize_t store_emulate_rest_reord(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ bool flag;
+ int ret;
+
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ if (flag != 0) {
+ printk(KERN_ERR "dev[%p]: SE Device emulation of restricted"
+ " reordering not implemented\n", da->da_dev);
+ return -ENOSYS;
+ }
+ da->emulate_rest_reord = flag;
+ pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n",
+ da->da_dev, flag);
+ return count;
+}
+
+/*
+ * Note, this can only be called on unexported SE Device Object.
+ */
+static ssize_t store_queue_depth(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ struct se_device *dev = da->da_dev;
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device TCQ while"
+ " export_count is %d\n",
+ dev, dev->export_count);
+ return -EINVAL;
+ }
+ if (!val) {
+ pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev);
+ return -EINVAL;
+ }
+
+ if (val > dev->dev_attrib.queue_depth) {
+ if (val > dev->dev_attrib.hw_queue_depth) {
+ pr_err("dev[%p]: Passed queue_depth:"
+ " %u exceeds TCM/SE_Device MAX"
+ " TCQ: %u\n", dev, val,
+ dev->dev_attrib.hw_queue_depth);
+ return -EINVAL;
+ }
+ }
+ da->queue_depth = dev->queue_depth = val;
+ pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val);
+ return count;
+}
+
+static ssize_t store_optimal_sectors(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device"
+ " optimal_sectors while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+ if (val > da->hw_max_sectors) {
+ pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
+ " greater than hw_max_sectors: %u\n",
+ da->da_dev, val, da->hw_max_sectors);
+ return -EINVAL;
+ }
+
+ da->optimal_sectors = val;
+ pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n",
+ da->da_dev, val);
+ return count;
+}
+
+static ssize_t store_block_size(struct se_dev_attrib *da,
+ const char *page, size_t count)
+{
+ u32 val;
+ int ret;
+
+ ret = kstrtou32(page, 0, &val);
+ if (ret < 0)
+ return ret;
+
+ if (da->da_dev->export_count) {
+ pr_err("dev[%p]: Unable to change SE Device block_size"
+ " while export_count is %d\n",
+ da->da_dev, da->da_dev->export_count);
+ return -EINVAL;
+ }
+
+ if (val != 512 && val != 1024 && val != 2048 && val != 4096) {
+ pr_err("dev[%p]: Illegal value for block_device: %u"
+ " for SE device, must be 512, 1024, 2048 or 4096\n",
+ da->da_dev, val);
+ return -EINVAL;
+ }
+
+ da->block_size = val;
+ if (da->max_bytes_per_io)
+ da->hw_max_sectors = da->max_bytes_per_io / val;
+
+ pr_debug("dev[%p]: SE Device block_size changed to %u\n",
+ da->da_dev, val);
+ return count;
+}
+
+CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib);
+#define TB_DEV_ATTR(_backend, _name, _mode) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR(_name, _mode, \
+ show_##_name, \
+ store_##_name);
+
+#define TB_DEV_ATTR_RO(_backend, _name) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR_RO(_name, \
+ show_##_name);
+
+TB_DEV_ATTR(target_core, emulate_model_alias, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_dpo, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_fua_write, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_fua_read, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_write_cache, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tas, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tpu, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_tpws, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_caw, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_3pc, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, pi_prot_type, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR_RO(target_core, hw_pi_prot_type);
+TB_DEV_ATTR(target_core, pi_prot_format, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, enforce_pr_isids, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, is_nonrot, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, emulate_rest_reord, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, force_pr_aptpl, S_IRUGO | S_IWUSR)
+TB_DEV_ATTR_RO(target_core, hw_block_size);
+TB_DEV_ATTR(target_core, block_size, S_IRUGO | S_IWUSR)
+TB_DEV_ATTR_RO(target_core, hw_max_sectors);
+TB_DEV_ATTR(target_core, optimal_sectors, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR_RO(target_core, hw_queue_depth);
+TB_DEV_ATTR(target_core, queue_depth, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_unmap_lba_count, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_unmap_block_desc_count, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, unmap_granularity, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, unmap_granularity_alignment, S_IRUGO | S_IWUSR);
+TB_DEV_ATTR(target_core, max_write_same_len, S_IRUGO | S_IWUSR);
CONFIGFS_EATTR_STRUCT(target_core_dev_attrib, se_dev_attrib);
CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group);
+/*
+ * dev_attrib attributes for devices using the target core SBC/SPC
+ * interpreter. Any backend using spc_parse_cdb should be using
+ * these.
+ */
+struct configfs_attribute *sbc_attrib_attrs[] = {
+ &target_core_dev_attrib_emulate_model_alias.attr,
+ &target_core_dev_attrib_emulate_dpo.attr,
+ &target_core_dev_attrib_emulate_fua_write.attr,
+ &target_core_dev_attrib_emulate_fua_read.attr,
+ &target_core_dev_attrib_emulate_write_cache.attr,
+ &target_core_dev_attrib_emulate_ua_intlck_ctrl.attr,
+ &target_core_dev_attrib_emulate_tas.attr,
+ &target_core_dev_attrib_emulate_tpu.attr,
+ &target_core_dev_attrib_emulate_tpws.attr,
+ &target_core_dev_attrib_emulate_caw.attr,
+ &target_core_dev_attrib_emulate_3pc.attr,
+ &target_core_dev_attrib_pi_prot_type.attr,
+ &target_core_dev_attrib_hw_pi_prot_type.attr,
+ &target_core_dev_attrib_pi_prot_format.attr,
+ &target_core_dev_attrib_enforce_pr_isids.attr,
+ &target_core_dev_attrib_is_nonrot.attr,
+ &target_core_dev_attrib_emulate_rest_reord.attr,
+ &target_core_dev_attrib_force_pr_aptpl.attr,
+ &target_core_dev_attrib_hw_block_size.attr,
+ &target_core_dev_attrib_block_size.attr,
+ &target_core_dev_attrib_hw_max_sectors.attr,
+ &target_core_dev_attrib_optimal_sectors.attr,
+ &target_core_dev_attrib_hw_queue_depth.attr,
+ &target_core_dev_attrib_queue_depth.attr,
+ &target_core_dev_attrib_max_unmap_lba_count.attr,
+ &target_core_dev_attrib_max_unmap_block_desc_count.attr,
+ &target_core_dev_attrib_unmap_granularity.attr,
+ &target_core_dev_attrib_unmap_granularity_alignment.attr,
+ &target_core_dev_attrib_max_write_same_len.attr,
+ NULL,
+};
+EXPORT_SYMBOL(sbc_attrib_attrs);
+
+TB_DEV_ATTR_RO(target_pt, hw_pi_prot_type);
+TB_DEV_ATTR_RO(target_pt, hw_block_size);
+TB_DEV_ATTR_RO(target_pt, hw_max_sectors);
+TB_DEV_ATTR_RO(target_pt, hw_queue_depth);
+
+/*
+ * Minimal dev_attrib attributes for devices passing through CDBs.
+ * In this case we only provide a few read-only attributes for
+ * backwards compatibility.
+ */
+struct configfs_attribute *passthrough_attrib_attrs[] = {
+ &target_pt_dev_attrib_hw_pi_prot_type.attr,
+ &target_pt_dev_attrib_hw_block_size.attr,
+ &target_pt_dev_attrib_hw_max_sectors.attr,
+ &target_pt_dev_attrib_hw_queue_depth.attr,
+ NULL,
+};
+EXPORT_SYMBOL(passthrough_attrib_attrs);
+
static struct configfs_item_operations target_core_dev_attrib_ops = {
.show_attribute = target_core_dev_attrib_attr_show,
.store_attribute = target_core_dev_attrib_attr_store,
};
-TB_CIT_SETUP(dev_attrib, &target_core_dev_attrib_ops, NULL, NULL);
+TB_CIT_SETUP_DRV(dev_attrib, &target_core_dev_attrib_ops, NULL);
/* End functions for struct config_item_type tb_dev_attrib_cit */
@@ -862,7 +1416,6 @@
struct se_device *dev, char *page)
{
struct se_node_acl *se_nacl;
- struct se_lun *lun;
struct se_portal_group *se_tpg;
struct t10_pr_registration *pr_reg;
const struct target_core_fabric_ops *tfo;
@@ -877,7 +1430,6 @@
se_nacl = pr_reg->pr_reg_nacl;
se_tpg = se_nacl->se_tpg;
- lun = pr_reg->pr_reg_tg_pt_lun;
tfo = se_tpg->se_tpg_tfo;
len += sprintf(page+len, "SPC-3 Reservation: %s"
@@ -885,9 +1437,9 @@
tfo->tpg_get_wwn(se_tpg));
len += sprintf(page+len, "SPC-3 Reservation: Relative Port"
" Identifier Tag: %hu %s Portal Group Tag: %hu"
- " %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi,
+ " %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi,
tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg),
- tfo->get_fabric_name(), lun->unpacked_lun);
+ tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun);
out_unlock:
spin_unlock(&dev->dev_reservation_lock);
@@ -1012,12 +1564,12 @@
{Opt_res_type, "res_type=%d"},
{Opt_res_scope, "res_scope=%d"},
{Opt_res_all_tg_pt, "res_all_tg_pt=%d"},
- {Opt_mapped_lun, "mapped_lun=%d"},
+ {Opt_mapped_lun, "mapped_lun=%lld"},
{Opt_target_fabric, "target_fabric=%s"},
{Opt_target_node, "target_node=%s"},
{Opt_tpgt, "tpgt=%d"},
{Opt_port_rtpi, "port_rtpi=%d"},
- {Opt_target_lun, "target_lun=%d"},
+ {Opt_target_lun, "target_lun=%lld"},
{Opt_err, NULL}
};
@@ -1032,10 +1584,10 @@
substring_t args[MAX_OPT_ARGS];
unsigned long long tmp_ll;
u64 sa_res_key = 0;
- u32 mapped_lun = 0, target_lun = 0;
+ u64 mapped_lun = 0, target_lun = 0;
int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token;
- u16 port_rpti = 0, tpgt = 0;
- u8 type = 0, scope;
+ u16 tpgt = 0;
+ u8 type = 0;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
@@ -1115,7 +1667,6 @@
break;
case Opt_res_scope:
match_int(args, &arg);
- scope = (u8)arg;
break;
case Opt_res_all_tg_pt:
match_int(args, &arg);
@@ -1123,7 +1674,7 @@
break;
case Opt_mapped_lun:
match_int(args, &arg);
- mapped_lun = (u32)arg;
+ mapped_lun = (u64)arg;
break;
/*
* PR APTPL Metadata for Target Port
@@ -1155,11 +1706,10 @@
break;
case Opt_port_rtpi:
match_int(args, &arg);
- port_rpti = (u16)arg;
break;
case Opt_target_lun:
match_int(args, &arg);
- target_lun = (u32)arg;
+ target_lun = (u64)arg;
break;
default:
break;
@@ -1223,13 +1773,13 @@
static ssize_t target_core_show_dev_info(void *p, char *page)
{
struct se_device *dev = p;
- struct se_subsystem_api *t = dev->transport;
int bl = 0;
ssize_t read_bytes = 0;
transport_dump_dev_state(dev, page, &bl);
read_bytes += bl;
- read_bytes += t->show_configfs_dev_params(dev, page+read_bytes);
+ read_bytes += dev->transport->show_configfs_dev_params(dev,
+ page+read_bytes);
return read_bytes;
}
@@ -1247,9 +1797,8 @@
size_t count)
{
struct se_device *dev = p;
- struct se_subsystem_api *t = dev->transport;
- return t->set_configfs_dev_params(dev, page, count);
+ return dev->transport->set_configfs_dev_params(dev, page, count);
}
static struct target_core_configfs_attribute target_core_attr_dev_control = {
@@ -2339,21 +2888,16 @@
struct t10_alua_tg_pt_gp *tg_pt_gp,
char *page)
{
- struct se_port *port;
- struct se_portal_group *tpg;
struct se_lun *lun;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
ssize_t len = 0, cur_len;
unsigned char buf[TG_PT_GROUP_NAME_BUF];
memset(buf, 0, TG_PT_GROUP_NAME_BUF);
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
- list_for_each_entry(tg_pt_gp_mem, &tg_pt_gp->tg_pt_gp_mem_list,
- tg_pt_gp_mem_list) {
- port = tg_pt_gp_mem->tg_pt;
- tpg = port->sep_tpg;
- lun = port->sep_lun;
+ list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
+ lun_tg_pt_gp_link) {
+ struct se_portal_group *tpg = lun->lun_tpg;
cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu"
"/%s\n", tpg->se_tpg_tfo->get_fabric_name(),
@@ -2526,9 +3070,9 @@
const char *name)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct se_subsystem_api *t;
struct config_item *hba_ci = &group->cg_item;
struct se_hba *hba = item_to_hba(hba_ci);
+ struct target_backend *tb = hba->backend;
struct se_device *dev;
struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL;
struct config_group *dev_stat_grp = NULL;
@@ -2537,10 +3081,6 @@
ret = mutex_lock_interruptible(&hba->hba_access_mutex);
if (ret)
return ERR_PTR(ret);
- /*
- * Locate the struct se_subsystem_api from parent's struct se_hba.
- */
- t = hba->transport;
dev = target_alloc_device(hba, name);
if (!dev)
@@ -2553,17 +3093,17 @@
if (!dev_cg->default_groups)
goto out_free_device;
- config_group_init_type_name(dev_cg, name, &t->tb_cits.tb_dev_cit);
+ config_group_init_type_name(dev_cg, name, &tb->tb_dev_cit);
config_group_init_type_name(&dev->dev_attrib.da_group, "attrib",
- &t->tb_cits.tb_dev_attrib_cit);
+ &tb->tb_dev_attrib_cit);
config_group_init_type_name(&dev->dev_pr_group, "pr",
- &t->tb_cits.tb_dev_pr_cit);
+ &tb->tb_dev_pr_cit);
config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn",
- &t->tb_cits.tb_dev_wwn_cit);
+ &tb->tb_dev_wwn_cit);
config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group,
- "alua", &t->tb_cits.tb_dev_alua_tg_pt_gps_cit);
+ "alua", &tb->tb_dev_alua_tg_pt_gps_cit);
config_group_init_type_name(&dev->dev_stat_grps.stat_group,
- "statistics", &t->tb_cits.tb_dev_stat_cit);
+ "statistics", &tb->tb_dev_stat_cit);
dev_cg->default_groups[0] = &dev->dev_attrib.da_group;
dev_cg->default_groups[1] = &dev->dev_pr_group;
@@ -2693,8 +3233,8 @@
char *page)
{
return sprintf(page, "HBA Index: %d plugin: %s version: %s\n",
- hba->hba_id, hba->transport->name,
- TARGET_CORE_CONFIGFS_VERSION);
+ hba->hba_id, hba->backend->ops->name,
+ TARGET_CORE_VERSION);
}
SE_HBA_ATTR_RO(hba_info);
@@ -2713,11 +3253,10 @@
static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba,
const char *page, size_t count)
{
- struct se_subsystem_api *transport = hba->transport;
unsigned long mode_flag;
int ret;
- if (transport->pmode_enable_hba == NULL)
+ if (hba->backend->ops->pmode_enable_hba == NULL)
return -EINVAL;
ret = kstrtoul(page, 0, &mode_flag);
@@ -2731,7 +3270,7 @@
return -EINVAL;
}
- ret = transport->pmode_enable_hba(hba, mode_flag);
+ ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag);
if (ret < 0)
return -EINVAL;
if (ret > 0)
@@ -2857,16 +3396,15 @@
/* Stop functions for struct config_item_type target_core_hba_cit */
-void target_core_setup_sub_cits(struct se_subsystem_api *sa)
+void target_setup_backend_cits(struct target_backend *tb)
{
- target_core_setup_dev_cit(sa);
- target_core_setup_dev_attrib_cit(sa);
- target_core_setup_dev_pr_cit(sa);
- target_core_setup_dev_wwn_cit(sa);
- target_core_setup_dev_alua_tg_pt_gps_cit(sa);
- target_core_setup_dev_stat_cit(sa);
+ target_core_setup_dev_cit(tb);
+ target_core_setup_dev_attrib_cit(tb);
+ target_core_setup_dev_pr_cit(tb);
+ target_core_setup_dev_wwn_cit(tb);
+ target_core_setup_dev_alua_tg_pt_gps_cit(tb);
+ target_core_setup_dev_stat_cit(tb);
}
-EXPORT_SYMBOL(target_core_setup_sub_cits);
static int __init target_core_init_configfs(void)
{
@@ -2968,7 +3506,7 @@
goto out_global;
}
pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric"
- " Infrastructure: "TARGET_CORE_CONFIGFS_VERSION" on %s/%s"
+ " Infrastructure: "TARGET_CORE_VERSION" on %s/%s"
" on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine);
/*
* Register built-in RAMDISK subsystem logic for virtual LUN 0
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 417f88b..09e682b 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -56,40 +56,37 @@
struct se_device *g_lun0_dev;
sense_reason_t
-transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
+transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
{
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
- struct se_device *dev;
- unsigned long flags;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
+ struct se_dev_entry *deve;
- if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return TCM_NON_EXISTENT_LUN;
-
- spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags);
- se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun];
- if (se_cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- struct se_dev_entry *deve = se_cmd->se_deve;
-
- deve->total_cmds++;
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (deve) {
+ atomic_long_inc(&deve->total_cmds);
if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
(deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) {
pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
return TCM_WRITE_PROTECTED;
}
if (se_cmd->data_direction == DMA_TO_DEVICE)
- deve->write_bytes += se_cmd->data_length;
+ atomic_long_add(se_cmd->data_length,
+ &deve->write_bytes);
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
- deve->read_bytes += se_cmd->data_length;
+ atomic_long_add(se_cmd->data_length,
+ &deve->read_bytes);
- se_lun = deve->se_lun;
- se_cmd->se_lun = deve->se_lun;
+ se_lun = rcu_dereference(deve->se_lun);
+ se_cmd->se_lun = rcu_dereference(deve->se_lun);
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
@@ -97,7 +94,7 @@
percpu_ref_get(&se_lun->lun_ref);
se_cmd->lun_ref_active = true;
}
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
if (!se_lun) {
/*
@@ -107,7 +104,7 @@
*/
if (unpacked_lun != 0) {
pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
return TCM_NON_EXISTENT_LUN;
@@ -119,64 +116,66 @@
(se_cmd->data_direction != DMA_NONE))
return TCM_WRITE_PROTECTED;
- se_lun = &se_sess->se_tpg->tpg_virt_lun0;
- se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
+ se_lun = se_sess->se_tpg->tpg_virt_lun0;
+ se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0;
se_cmd->orig_fe_lun = 0;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
percpu_ref_get(&se_lun->lun_ref);
se_cmd->lun_ref_active = true;
}
+ /*
+ * RCU reference protected by percpu se_lun->lun_ref taken above that
+ * must drop to zero (including initial reference) before this se_lun
+ * pointer can be kfree_rcu() by the final se_lun->lun_group put via
+ * target_core_fabric_configfs.c:target_fabric_port_release
+ */
+ se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
+ atomic_long_inc(&se_cmd->se_dev->num_cmds);
- /* Directly associate cmd with se_dev */
- se_cmd->se_dev = se_lun->lun_se_dev;
-
- dev = se_lun->lun_se_dev;
- atomic_long_inc(&dev->num_cmds);
if (se_cmd->data_direction == DMA_TO_DEVICE)
- atomic_long_add(se_cmd->data_length, &dev->write_bytes);
+ atomic_long_add(se_cmd->data_length,
+ &se_cmd->se_dev->write_bytes);
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
- atomic_long_add(se_cmd->data_length, &dev->read_bytes);
+ atomic_long_add(se_cmd->data_length,
+ &se_cmd->se_dev->read_bytes);
return 0;
}
EXPORT_SYMBOL(transport_lookup_cmd_lun);
-int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
+int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
{
struct se_dev_entry *deve;
struct se_lun *se_lun = NULL;
struct se_session *se_sess = se_cmd->se_sess;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
unsigned long flags;
- if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG)
- return -ENODEV;
-
- spin_lock_irqsave(&se_sess->se_node_acl->device_list_lock, flags);
- se_cmd->se_deve = se_sess->se_node_acl->device_list[unpacked_lun];
- deve = se_cmd->se_deve;
-
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- se_tmr->tmr_lun = deve->se_lun;
- se_cmd->se_lun = deve->se_lun;
- se_lun = deve->se_lun;
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (deve) {
+ se_tmr->tmr_lun = rcu_dereference(deve->se_lun);
+ se_cmd->se_lun = rcu_dereference(deve->se_lun);
+ se_lun = rcu_dereference(deve->se_lun);
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
}
- spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
+ rcu_read_unlock();
if (!se_lun) {
pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
- " Access for 0x%08x\n",
+ " Access for 0x%08llx\n",
se_cmd->se_tfo->get_fabric_name(),
unpacked_lun);
return -ENODEV;
}
-
- /* Directly associate cmd with se_dev */
- se_cmd->se_dev = se_lun->lun_se_dev;
- se_tmr->tmr_dev = se_lun->lun_se_dev;
+ /*
+ * XXX: Add percpu se_lun->lun_ref reference count for TMR
+ */
+ se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
+ se_tmr->tmr_dev = rcu_dereference_raw(se_lun->lun_se_dev);
spin_lock_irqsave(&se_tmr->tmr_dev->se_tmr_lock, flags);
list_add_tail(&se_tmr->tmr_list, &se_tmr->tmr_dev->dev_tmr_list);
@@ -186,9 +185,24 @@
}
EXPORT_SYMBOL(transport_lookup_tmr_lun);
+bool target_lun_is_rdonly(struct se_cmd *cmd)
+{
+ struct se_session *se_sess = cmd->se_sess;
+ struct se_dev_entry *deve;
+ bool ret;
+
+ rcu_read_lock();
+ deve = target_nacl_find_deve(se_sess->se_node_acl, cmd->orig_fe_lun);
+ ret = (deve && deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY);
+ rcu_read_unlock();
+
+ return ret;
+}
+EXPORT_SYMBOL(target_lun_is_rdonly);
+
/*
* This function is called from core_scsi3_emulate_pro_register_and_move()
- * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_ref_count
+ * and core_scsi3_decode_spec_i_port(), and will increment &deve->pr_kref
* when a matching rtpi is found.
*/
struct se_dev_entry *core_get_se_deve_from_rtpi(
@@ -197,143 +211,55 @@
{
struct se_dev_entry *deve;
struct se_lun *lun;
- struct se_port *port;
struct se_portal_group *tpg = nacl->se_tpg;
- u32 i;
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- lun = deve->se_lun;
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ lun = rcu_dereference(deve->se_lun);
if (!lun) {
pr_err("%s device entries device pointer is"
" NULL, but Initiator has access.\n",
tpg->se_tpg_tfo->get_fabric_name());
continue;
}
- port = lun->lun_sep;
- if (!port) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
- if (port->sep_rtpi != rtpi)
+ if (lun->lun_rtpi != rtpi)
continue;
- atomic_inc_mb(&deve->pr_ref_count);
- spin_unlock_irq(&nacl->device_list_lock);
+ kref_get(&deve->pr_kref);
+ rcu_read_unlock();
return deve;
}
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return NULL;
}
-int core_free_device_list_for_node(
+void core_free_device_list_for_node(
struct se_node_acl *nacl,
struct se_portal_group *tpg)
{
struct se_dev_entry *deve;
- struct se_lun *lun;
- u32 i;
- if (!nacl->device_list)
- return 0;
-
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- if (!deve->se_lun) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
- lun = deve->se_lun;
-
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL, deve->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
- spin_lock_irq(&nacl->device_list_lock);
+ mutex_lock(&nacl->lun_entry_mutex);
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ struct se_lun *lun = rcu_dereference_check(deve->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
}
- spin_unlock_irq(&nacl->device_list_lock);
-
- array_free(nacl->device_list, TRANSPORT_MAX_LUNS_PER_TPG);
- nacl->device_list = NULL;
-
- return 0;
+ mutex_unlock(&nacl->lun_entry_mutex);
}
void core_update_device_list_access(
- u32 mapped_lun,
+ u64 mapped_lun,
u32 lun_access,
struct se_node_acl *nacl)
{
struct se_dev_entry *deve;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[mapped_lun];
- if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
- } else {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
- }
- spin_unlock_irq(&nacl->device_list_lock);
-}
-
-/* core_enable_device_list_for_node():
- *
- *
- */
-int core_enable_device_list_for_node(
- struct se_lun *lun,
- struct se_lun_acl *lun_acl,
- u32 mapped_lun,
- u32 lun_access,
- struct se_node_acl *nacl,
- struct se_portal_group *tpg)
-{
- struct se_port *port = lun->lun_sep;
- struct se_dev_entry *deve;
-
- spin_lock_irq(&nacl->device_list_lock);
-
- deve = nacl->device_list[mapped_lun];
-
- /*
- * Check if the call is handling demo mode -> explicit LUN ACL
- * transition. This transition must be for the same struct se_lun
- * + mapped_lun that was setup in demo mode..
- */
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
- if (deve->se_lun_acl != NULL) {
- pr_err("struct se_dev_entry->se_lun_acl"
- " already set for demo mode -> explicit"
- " LUN ACL transition\n");
- spin_unlock_irq(&nacl->device_list_lock);
- return -EINVAL;
- }
- if (deve->se_lun != lun) {
- pr_err("struct se_dev_entry->se_lun does"
- " match passed struct se_lun for demo mode"
- " -> explicit LUN ACL transition\n");
- spin_unlock_irq(&nacl->device_list_lock);
- return -EINVAL;
- }
- deve->se_lun_acl = lun_acl;
-
+ mutex_lock(&nacl->lun_entry_mutex);
+ deve = target_nacl_find_deve(nacl, mapped_lun);
+ if (deve) {
if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
@@ -341,87 +267,182 @@
deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
}
-
- spin_unlock_irq(&nacl->device_list_lock);
- return 0;
}
-
- deve->se_lun = lun;
- deve->se_lun_acl = lun_acl;
- deve->mapped_lun = mapped_lun;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_INITIATOR_ACCESS;
-
- if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_ONLY;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
- } else {
- deve->lun_flags &= ~TRANSPORT_LUNFLAGS_READ_WRITE;
- deve->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
- }
-
- deve->creation_time = get_jiffies_64();
- deve->attach_count++;
- spin_unlock_irq(&nacl->device_list_lock);
-
- spin_lock_bh(&port->sep_alua_lock);
- list_add_tail(&deve->alua_port_list, &port->sep_alua_list);
- spin_unlock_bh(&port->sep_alua_lock);
-
- return 0;
+ mutex_unlock(&nacl->lun_entry_mutex);
}
-/* core_disable_device_list_for_node():
- *
- *
+/*
+ * Called with rcu_read_lock or nacl->device_list_lock held.
*/
-int core_disable_device_list_for_node(
+struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *nacl, u64 mapped_lun)
+{
+ struct se_dev_entry *deve;
+
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link)
+ if (deve->mapped_lun == mapped_lun)
+ return deve;
+
+ return NULL;
+}
+EXPORT_SYMBOL(target_nacl_find_deve);
+
+void target_pr_kref_release(struct kref *kref)
+{
+ struct se_dev_entry *deve = container_of(kref, struct se_dev_entry,
+ pr_kref);
+ complete(&deve->pr_comp);
+}
+
+static void
+target_luns_data_has_changed(struct se_node_acl *nacl, struct se_dev_entry *new,
+ bool skip_new)
+{
+ struct se_dev_entry *tmp;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(tmp, &nacl->lun_entry_hlist, link) {
+ if (skip_new && tmp == new)
+ continue;
+ core_scsi3_ua_allocate(tmp, 0x3F,
+ ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED);
+ }
+ rcu_read_unlock();
+}
+
+int core_enable_device_list_for_node(
struct se_lun *lun,
struct se_lun_acl *lun_acl,
- u32 mapped_lun,
+ u64 mapped_lun,
u32 lun_access,
struct se_node_acl *nacl,
struct se_portal_group *tpg)
{
- struct se_port *port = lun->lun_sep;
- struct se_dev_entry *deve = nacl->device_list[mapped_lun];
+ struct se_dev_entry *orig, *new;
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new) {
+ pr_err("Unable to allocate se_dev_entry memory\n");
+ return -ENOMEM;
+ }
+
+ atomic_set(&new->ua_count, 0);
+ spin_lock_init(&new->ua_lock);
+ INIT_LIST_HEAD(&new->ua_list);
+ INIT_LIST_HEAD(&new->lun_link);
+
+ new->mapped_lun = mapped_lun;
+ kref_init(&new->pr_kref);
+ init_completion(&new->pr_comp);
+
+ if (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE)
+ new->lun_flags |= TRANSPORT_LUNFLAGS_READ_WRITE;
+ else
+ new->lun_flags |= TRANSPORT_LUNFLAGS_READ_ONLY;
+
+ new->creation_time = get_jiffies_64();
+ new->attach_count++;
+
+ mutex_lock(&nacl->lun_entry_mutex);
+ orig = target_nacl_find_deve(nacl, mapped_lun);
+ if (orig && orig->se_lun) {
+ struct se_lun *orig_lun = rcu_dereference_check(orig->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+
+ if (orig_lun != lun) {
+ pr_err("Existing orig->se_lun doesn't match new lun"
+ " for dynamic -> explicit NodeACL conversion:"
+ " %s\n", nacl->initiatorname);
+ mutex_unlock(&nacl->lun_entry_mutex);
+ kfree(new);
+ return -EINVAL;
+ }
+ BUG_ON(orig->se_lun_acl != NULL);
+
+ rcu_assign_pointer(new->se_lun, lun);
+ rcu_assign_pointer(new->se_lun_acl, lun_acl);
+ hlist_del_rcu(&orig->link);
+ hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist);
+ mutex_unlock(&nacl->lun_entry_mutex);
+
+ spin_lock(&lun->lun_deve_lock);
+ list_del(&orig->lun_link);
+ list_add_tail(&new->lun_link, &lun->lun_deve_list);
+ spin_unlock(&lun->lun_deve_lock);
+
+ kref_put(&orig->pr_kref, target_pr_kref_release);
+ wait_for_completion(&orig->pr_comp);
+
+ target_luns_data_has_changed(nacl, new, true);
+ kfree_rcu(orig, rcu_head);
+ return 0;
+ }
+
+ rcu_assign_pointer(new->se_lun, lun);
+ rcu_assign_pointer(new->se_lun_acl, lun_acl);
+ hlist_add_head_rcu(&new->link, &nacl->lun_entry_hlist);
+ mutex_unlock(&nacl->lun_entry_mutex);
+
+ spin_lock(&lun->lun_deve_lock);
+ list_add_tail(&new->lun_link, &lun->lun_deve_list);
+ spin_unlock(&lun->lun_deve_lock);
+
+ target_luns_data_has_changed(nacl, new, true);
+ return 0;
+}
+
+/*
+ * Called with se_node_acl->lun_entry_mutex held.
+ */
+void core_disable_device_list_for_node(
+ struct se_lun *lun,
+ struct se_dev_entry *orig,
+ struct se_node_acl *nacl,
+ struct se_portal_group *tpg)
+{
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
/*
* If the MappedLUN entry is being disabled, the entry in
- * port->sep_alua_list must be removed now before clearing the
+ * lun->lun_deve_list must be removed now before clearing the
* struct se_dev_entry pointers below as logic in
* core_alua_do_transition_tg_pt() depends on these being present.
*
* deve->se_lun_acl will be NULL for demo-mode created LUNs
* that have not been explicitly converted to MappedLUNs ->
- * struct se_lun_acl, but we remove deve->alua_port_list from
- * port->sep_alua_list. This also means that active UAs and
+ * struct se_lun_acl, but we remove deve->lun_link from
+ * lun->lun_deve_list. This also means that active UAs and
* NodeACL context specific PR metadata for demo-mode
* MappedLUN *deve will be released below..
*/
- spin_lock_bh(&port->sep_alua_lock);
- list_del(&deve->alua_port_list);
- spin_unlock_bh(&port->sep_alua_lock);
- /*
- * Wait for any in process SPEC_I_PT=1 or REGISTER_AND_MOVE
- * PR operation to complete.
- */
- while (atomic_read(&deve->pr_ref_count) != 0)
- cpu_relax();
-
- spin_lock_irq(&nacl->device_list_lock);
+ spin_lock(&lun->lun_deve_lock);
+ list_del(&orig->lun_link);
+ spin_unlock(&lun->lun_deve_lock);
/*
* Disable struct se_dev_entry LUN ACL mapping
*/
- core_scsi3_ua_release_all(deve);
- deve->se_lun = NULL;
- deve->se_lun_acl = NULL;
- deve->lun_flags = 0;
- deve->creation_time = 0;
- deve->attach_count--;
- spin_unlock_irq(&nacl->device_list_lock);
+ core_scsi3_ua_release_all(orig);
- core_scsi3_free_pr_reg_from_nacl(lun->lun_se_dev, nacl);
- return 0;
+ hlist_del_rcu(&orig->link);
+ clear_bit(DEF_PR_REG_ACTIVE, &orig->deve_flags);
+ rcu_assign_pointer(orig->se_lun, NULL);
+ rcu_assign_pointer(orig->se_lun_acl, NULL);
+ orig->lun_flags = 0;
+ orig->creation_time = 0;
+ orig->attach_count--;
+ /*
+ * Before firing off RCU callback, wait for any in process SPEC_I_PT=1
+ * or REGISTER_AND_MOVE PR operation to complete.
+ */
+ kref_put(&orig->pr_kref, target_pr_kref_release);
+ wait_for_completion(&orig->pr_comp);
+
+ kfree_rcu(orig, rcu_head);
+
+ core_scsi3_free_pr_reg_from_nacl(dev, nacl);
+ target_luns_data_has_changed(nacl, NULL, false);
}
/* core_clear_lun_from_tpg():
@@ -432,53 +453,35 @@
{
struct se_node_acl *nacl;
struct se_dev_entry *deve;
- u32 i;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
list_for_each_entry(nacl, &tpg->acl_node_list, acl_list) {
- spin_unlock_irq(&tpg->acl_node_lock);
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
- if (lun != deve->se_lun)
+ mutex_lock(&nacl->lun_entry_mutex);
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
+ struct se_lun *tmp_lun = rcu_dereference_check(deve->se_lun,
+ lockdep_is_held(&nacl->lun_entry_mutex));
+
+ if (lun != tmp_lun)
continue;
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL,
- deve->mapped_lun, TRANSPORT_LUNFLAGS_NO_ACCESS,
- nacl, tpg);
-
- spin_lock_irq(&nacl->device_list_lock);
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
}
- spin_unlock_irq(&nacl->device_list_lock);
-
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&nacl->lun_entry_mutex);
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
}
-static struct se_port *core_alloc_port(struct se_device *dev)
+int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev)
{
- struct se_port *port, *port_tmp;
-
- port = kzalloc(sizeof(struct se_port), GFP_KERNEL);
- if (!port) {
- pr_err("Unable to allocate struct se_port\n");
- return ERR_PTR(-ENOMEM);
- }
- INIT_LIST_HEAD(&port->sep_alua_list);
- INIT_LIST_HEAD(&port->sep_list);
- atomic_set(&port->sep_tg_pt_secondary_offline, 0);
- spin_lock_init(&port->sep_alua_lock);
- mutex_init(&port->sep_tg_pt_md_mutex);
+ struct se_lun *tmp;
spin_lock(&dev->se_port_lock);
- if (dev->dev_port_count == 0x0000ffff) {
+ if (dev->export_count == 0x0000ffff) {
pr_warn("Reached dev->dev_port_count =="
" 0x0000ffff\n");
spin_unlock(&dev->se_port_lock);
- return ERR_PTR(-ENOSPC);
+ return -ENOSPC;
}
again:
/*
@@ -493,133 +496,23 @@
* 2h Relative port 2, historically known as port B
* 3h to FFFFh Relative port 3 through 65 535
*/
- port->sep_rtpi = dev->dev_rpti_counter++;
- if (!port->sep_rtpi)
+ lun->lun_rtpi = dev->dev_rpti_counter++;
+ if (!lun->lun_rtpi)
goto again;
- list_for_each_entry(port_tmp, &dev->dev_sep_list, sep_list) {
+ list_for_each_entry(tmp, &dev->dev_sep_list, lun_dev_link) {
/*
* Make sure RELATIVE TARGET PORT IDENTIFIER is unique
* for 16-bit wrap..
*/
- if (port->sep_rtpi == port_tmp->sep_rtpi)
+ if (lun->lun_rtpi == tmp->lun_rtpi)
goto again;
}
spin_unlock(&dev->se_port_lock);
- return port;
-}
-
-static void core_export_port(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_port *port,
- struct se_lun *lun)
-{
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem = NULL;
-
- spin_lock(&dev->se_port_lock);
- spin_lock(&lun->lun_sep_lock);
- port->sep_tpg = tpg;
- port->sep_lun = lun;
- lun->lun_sep = port;
- spin_unlock(&lun->lun_sep_lock);
-
- list_add_tail(&port->sep_list, &dev->dev_sep_list);
- spin_unlock(&dev->se_port_lock);
-
- if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
- !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
- tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port);
- if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) {
- pr_err("Unable to allocate t10_alua_tg_pt"
- "_gp_member_t\n");
- return;
- }
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- __core_alua_attach_tg_pt_gp_mem(tg_pt_gp_mem,
- dev->t10_alua.default_tg_pt_gp);
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- pr_debug("%s/%s: Adding to default ALUA Target Port"
- " Group: alua/default_tg_pt_gp\n",
- dev->transport->name, tpg->se_tpg_tfo->get_fabric_name());
- }
-
- dev->dev_port_count++;
- port->sep_index = port->sep_rtpi; /* RELATIVE TARGET PORT IDENTIFIER */
-}
-
-/*
- * Called with struct se_device->se_port_lock spinlock held.
- */
-static void core_release_port(struct se_device *dev, struct se_port *port)
- __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock)
-{
- /*
- * Wait for any port reference for PR ALL_TG_PT=1 operation
- * to complete in __core_scsi3_alloc_registration()
- */
- spin_unlock(&dev->se_port_lock);
- if (atomic_read(&port->sep_tg_pt_ref_cnt))
- cpu_relax();
- spin_lock(&dev->se_port_lock);
-
- core_alua_free_tg_pt_gp_mem(port);
-
- list_del(&port->sep_list);
- dev->dev_port_count--;
- kfree(port);
-}
-
-int core_dev_export(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_lun *lun)
-{
- struct se_hba *hba = dev->se_hba;
- struct se_port *port;
-
- port = core_alloc_port(dev);
- if (IS_ERR(port))
- return PTR_ERR(port);
-
- lun->lun_se_dev = dev;
-
- spin_lock(&hba->device_lock);
- dev->export_count++;
- spin_unlock(&hba->device_lock);
-
- core_export_port(dev, tpg, port, lun);
return 0;
}
-void core_dev_unexport(
- struct se_device *dev,
- struct se_portal_group *tpg,
- struct se_lun *lun)
-{
- struct se_hba *hba = dev->se_hba;
- struct se_port *port = lun->lun_sep;
-
- spin_lock(&lun->lun_sep_lock);
- if (lun->lun_se_dev == NULL) {
- spin_unlock(&lun->lun_sep_lock);
- return;
- }
- spin_unlock(&lun->lun_sep_lock);
-
- spin_lock(&dev->se_port_lock);
- core_release_port(dev, port);
- spin_unlock(&dev->se_port_lock);
-
- spin_lock(&hba->device_lock);
- dev->export_count--;
- spin_unlock(&hba->device_lock);
-
- lun->lun_sep = NULL;
- lun->lun_se_dev = NULL;
-}
-
static void se_release_vpd_for_dev(struct se_device *dev)
{
struct t10_vpd *vpd, *vpd_tmp;
@@ -651,556 +544,19 @@
return aligned_max_sectors;
}
-bool se_dev_check_wce(struct se_device *dev)
-{
- bool wce = false;
-
- if (dev->transport->get_write_cache)
- wce = dev->transport->get_write_cache(dev);
- else if (dev->dev_attrib.emulate_write_cache > 0)
- wce = true;
-
- return wce;
-}
-
-int se_dev_set_max_unmap_lba_count(
- struct se_device *dev,
- u32 max_unmap_lba_count)
-{
- dev->dev_attrib.max_unmap_lba_count = max_unmap_lba_count;
- pr_debug("dev[%p]: Set max_unmap_lba_count: %u\n",
- dev, dev->dev_attrib.max_unmap_lba_count);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_unmap_lba_count);
-
-int se_dev_set_max_unmap_block_desc_count(
- struct se_device *dev,
- u32 max_unmap_block_desc_count)
-{
- dev->dev_attrib.max_unmap_block_desc_count =
- max_unmap_block_desc_count;
- pr_debug("dev[%p]: Set max_unmap_block_desc_count: %u\n",
- dev, dev->dev_attrib.max_unmap_block_desc_count);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_unmap_block_desc_count);
-
-int se_dev_set_unmap_granularity(
- struct se_device *dev,
- u32 unmap_granularity)
-{
- dev->dev_attrib.unmap_granularity = unmap_granularity;
- pr_debug("dev[%p]: Set unmap_granularity: %u\n",
- dev, dev->dev_attrib.unmap_granularity);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_unmap_granularity);
-
-int se_dev_set_unmap_granularity_alignment(
- struct se_device *dev,
- u32 unmap_granularity_alignment)
-{
- dev->dev_attrib.unmap_granularity_alignment = unmap_granularity_alignment;
- pr_debug("dev[%p]: Set unmap_granularity_alignment: %u\n",
- dev, dev->dev_attrib.unmap_granularity_alignment);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_unmap_granularity_alignment);
-
-int se_dev_set_max_write_same_len(
- struct se_device *dev,
- u32 max_write_same_len)
-{
- dev->dev_attrib.max_write_same_len = max_write_same_len;
- pr_debug("dev[%p]: Set max_write_same_len: %u\n",
- dev, dev->dev_attrib.max_write_same_len);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_max_write_same_len);
-
-static void dev_set_t10_wwn_model_alias(struct se_device *dev)
-{
- const char *configname;
-
- configname = config_item_name(&dev->dev_group.cg_item);
- if (strlen(configname) >= 16) {
- pr_warn("dev[%p]: Backstore name '%s' is too long for "
- "INQUIRY_MODEL, truncating to 16 bytes\n", dev,
- configname);
- }
- snprintf(&dev->t10_wwn.model[0], 16, "%s", configname);
-}
-
-int se_dev_set_emulate_model_alias(struct se_device *dev, int flag)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change model alias"
- " while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
-
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- dev_set_t10_wwn_model_alias(dev);
- } else {
- strncpy(&dev->t10_wwn.model[0],
- dev->transport->inquiry_prod, 16);
- }
- dev->dev_attrib.emulate_model_alias = flag;
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_model_alias);
-
-int se_dev_set_emulate_dpo(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- pr_err("dpo_emulated not supported\n");
- return -EINVAL;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_dpo);
-
-int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (flag &&
- dev->transport->get_write_cache) {
- pr_warn("emulate_fua_write not supported for this device, ignoring\n");
- return 0;
- }
- if (dev->export_count) {
- pr_err("emulate_fua_write cannot be changed with active"
- " exports: %d\n", dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_fua_write = flag;
- pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n",
- dev, dev->dev_attrib.emulate_fua_write);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_fua_write);
-
-int se_dev_set_emulate_fua_read(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (flag) {
- pr_err("ua read emulated not supported\n");
- return -EINVAL;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_fua_read);
-
-int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (flag &&
- dev->transport->get_write_cache) {
- pr_err("emulate_write_cache not supported for this device\n");
- return -EINVAL;
- }
- if (dev->export_count) {
- pr_err("emulate_write_cache cannot be changed with active"
- " exports: %d\n", dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_write_cache = flag;
- pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
- dev, dev->dev_attrib.emulate_write_cache);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_write_cache);
-
-int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1) && (flag != 2)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device"
- " UA_INTRLCK_CTRL while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_ua_intlck_ctrl = flag;
- pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n",
- dev, dev->dev_attrib.emulate_ua_intlck_ctrl);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_ua_intlck_ctrl);
-
-int se_dev_set_emulate_tas(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
-
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device TAS while"
- " export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_tas = flag;
- pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n",
- dev, (dev->dev_attrib.emulate_tas) ? "Enabled" : "Disabled");
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tas);
-
-int se_dev_set_emulate_tpu(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- /*
- * We expect this value to be non-zero when generic Block Layer
- * Discard supported is detected iblock_create_virtdevice().
- */
- if (flag && !dev->dev_attrib.max_unmap_block_desc_count) {
- pr_err("Generic Block Discard not supported\n");
- return -ENOSYS;
- }
-
- dev->dev_attrib.emulate_tpu = flag;
- pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tpu);
-
-int se_dev_set_emulate_tpws(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- /*
- * We expect this value to be non-zero when generic Block Layer
- * Discard supported is detected iblock_create_virtdevice().
- */
- if (flag && !dev->dev_attrib.max_unmap_block_desc_count) {
- pr_err("Generic Block Discard not supported\n");
- return -ENOSYS;
- }
-
- dev->dev_attrib.emulate_tpws = flag;
- pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_tpws);
-
-int se_dev_set_emulate_caw(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_caw = flag;
- pr_debug("dev[%p]: SE Device CompareAndWrite (AtomicTestandSet): %d\n",
- dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_caw);
-
-int se_dev_set_emulate_3pc(struct se_device *dev, int flag)
-{
- if (flag != 0 && flag != 1) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.emulate_3pc = flag;
- pr_debug("dev[%p]: SE Device 3rd Party Copy (EXTENDED_COPY): %d\n",
- dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_3pc);
-
-int se_dev_set_pi_prot_type(struct se_device *dev, int flag)
-{
- int rc, old_prot = dev->dev_attrib.pi_prot_type;
-
- if (flag != 0 && flag != 1 && flag != 2 && flag != 3) {
- pr_err("Illegal value %d for pi_prot_type\n", flag);
- return -EINVAL;
- }
- if (flag == 2) {
- pr_err("DIF TYPE2 protection currently not supported\n");
- return -ENOSYS;
- }
- if (dev->dev_attrib.hw_pi_prot_type) {
- pr_warn("DIF protection enabled on underlying hardware,"
- " ignoring\n");
- return 0;
- }
- if (!dev->transport->init_prot || !dev->transport->free_prot) {
- /* 0 is only allowed value for non-supporting backends */
- if (flag == 0)
- return 0;
-
- pr_err("DIF protection not supported by backend: %s\n",
- dev->transport->name);
- return -ENOSYS;
- }
- if (!(dev->dev_flags & DF_CONFIGURED)) {
- pr_err("DIF protection requires device to be configured\n");
- return -ENODEV;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device PROT type while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- dev->dev_attrib.pi_prot_type = flag;
-
- if (flag && !old_prot) {
- rc = dev->transport->init_prot(dev);
- if (rc) {
- dev->dev_attrib.pi_prot_type = old_prot;
- return rc;
- }
-
- } else if (!flag && old_prot) {
- dev->transport->free_prot(dev);
- }
- pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_pi_prot_type);
-
-int se_dev_set_pi_prot_format(struct se_device *dev, int flag)
-{
- int rc;
-
- if (!flag)
- return 0;
-
- if (flag != 1) {
- pr_err("Illegal value %d for pi_prot_format\n", flag);
- return -EINVAL;
- }
- if (!dev->transport->format_prot) {
- pr_err("DIF protection format not supported by backend %s\n",
- dev->transport->name);
- return -ENOSYS;
- }
- if (!(dev->dev_flags & DF_CONFIGURED)) {
- pr_err("DIF protection format requires device to be configured\n");
- return -ENODEV;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to format SE Device PROT type while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- rc = dev->transport->format_prot(dev);
- if (rc)
- return rc;
-
- pr_debug("dev[%p]: SE Device Protection Format complete\n", dev);
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_pi_prot_format);
-
-int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- pr_err("Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.enforce_pr_isids = flag;
- pr_debug("dev[%p]: SE Device enforce_pr_isids bit: %s\n", dev,
- (dev->dev_attrib.enforce_pr_isids) ? "Enabled" : "Disabled");
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_enforce_pr_isids);
-
-int se_dev_set_force_pr_aptpl(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- printk(KERN_ERR "Illegal value %d\n", flag);
- return -EINVAL;
- }
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to set force_pr_aptpl while"
- " export_count is %d\n", dev, dev->export_count);
- return -EINVAL;
- }
-
- dev->dev_attrib.force_pr_aptpl = flag;
- pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_force_pr_aptpl);
-
-int se_dev_set_is_nonrot(struct se_device *dev, int flag)
-{
- if ((flag != 0) && (flag != 1)) {
- printk(KERN_ERR "Illegal value %d\n", flag);
- return -EINVAL;
- }
- dev->dev_attrib.is_nonrot = flag;
- pr_debug("dev[%p]: SE Device is_nonrot bit: %d\n",
- dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_is_nonrot);
-
-int se_dev_set_emulate_rest_reord(struct se_device *dev, int flag)
-{
- if (flag != 0) {
- printk(KERN_ERR "dev[%p]: SE Device emulatation of restricted"
- " reordering not implemented\n", dev);
- return -ENOSYS;
- }
- dev->dev_attrib.emulate_rest_reord = flag;
- pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n", dev, flag);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_emulate_rest_reord);
-
-/*
- * Note, this can only be called on unexported SE Device Object.
- */
-int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device TCQ while"
- " export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- if (!queue_depth) {
- pr_err("dev[%p]: Illegal ZERO value for queue"
- "_depth\n", dev);
- return -EINVAL;
- }
-
- if (queue_depth > dev->dev_attrib.queue_depth) {
- if (queue_depth > dev->dev_attrib.hw_queue_depth) {
- pr_err("dev[%p]: Passed queue_depth:"
- " %u exceeds TCM/SE_Device MAX"
- " TCQ: %u\n", dev, queue_depth,
- dev->dev_attrib.hw_queue_depth);
- return -EINVAL;
- }
- }
- dev->dev_attrib.queue_depth = dev->queue_depth = queue_depth;
- pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n",
- dev, queue_depth);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_queue_depth);
-
-int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device"
- " optimal_sectors while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- if (optimal_sectors > dev->dev_attrib.hw_max_sectors) {
- pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
- " greater than hw_max_sectors: %u\n", dev,
- optimal_sectors, dev->dev_attrib.hw_max_sectors);
- return -EINVAL;
- }
-
- dev->dev_attrib.optimal_sectors = optimal_sectors;
- pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n",
- dev, optimal_sectors);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_optimal_sectors);
-
-int se_dev_set_block_size(struct se_device *dev, u32 block_size)
-{
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device block_size"
- " while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
-
- if ((block_size != 512) &&
- (block_size != 1024) &&
- (block_size != 2048) &&
- (block_size != 4096)) {
- pr_err("dev[%p]: Illegal value for block_device: %u"
- " for SE device, must be 512, 1024, 2048 or 4096\n",
- dev, block_size);
- return -EINVAL;
- }
-
- dev->dev_attrib.block_size = block_size;
- pr_debug("dev[%p]: SE Device block_size changed to %u\n",
- dev, block_size);
-
- if (dev->dev_attrib.max_bytes_per_io)
- dev->dev_attrib.hw_max_sectors =
- dev->dev_attrib.max_bytes_per_io / block_size;
-
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_block_size);
-
-struct se_lun *core_dev_add_lun(
+int core_dev_add_lun(
struct se_portal_group *tpg,
struct se_device *dev,
- u32 unpacked_lun)
+ struct se_lun *lun)
{
- struct se_lun *lun;
int rc;
- lun = core_tpg_alloc_lun(tpg, unpacked_lun);
- if (IS_ERR(lun))
- return lun;
-
rc = core_tpg_add_lun(tpg, lun,
TRANSPORT_LUNFLAGS_READ_WRITE, dev);
if (rc < 0)
- return ERR_PTR(rc);
+ return rc;
- pr_debug("%s_TPG[%u]_LUN[%u] - Activated %s Logical Unit from"
+ pr_debug("%s_TPG[%u]_LUN[%llu] - Activated %s Logical Unit from"
" CORE HBA: %u\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
tpg->se_tpg_tfo->get_fabric_name(), dev->se_hba->hba_id);
@@ -1210,20 +566,19 @@
*/
if (tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) {
struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+
+ mutex_lock(&tpg->acl_node_mutex);
list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
if (acl->dynamic_node_acl &&
(!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only ||
!tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg))) {
- spin_unlock_irq(&tpg->acl_node_lock);
- core_tpg_add_node_to_devs(acl, tpg);
- spin_lock_irq(&tpg->acl_node_lock);
+ core_tpg_add_node_to_devs(acl, tpg, lun);
}
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
}
- return lun;
+ return 0;
}
/* core_dev_del_lun():
@@ -1234,7 +589,7 @@
struct se_portal_group *tpg,
struct se_lun *lun)
{
- pr_debug("%s_TPG[%u]_LUN[%u] - Deactivating %s Logical Unit from"
+ pr_debug("%s_TPG[%u]_LUN[%llu] - Deactivating %s Logical Unit from"
" device object\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
tpg->se_tpg_tfo->get_fabric_name());
@@ -1242,72 +597,10 @@
core_tpg_remove_lun(tpg, lun);
}
-struct se_lun *core_get_lun_from_tpg(struct se_portal_group *tpg, u32 unpacked_lun)
-{
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS"
- "_PER_TPG-1: %u for Target Portal Group: %hu\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- lun = tpg->tpg_lun_list[unpacked_lun];
-
- if (lun->lun_status != TRANSPORT_LUN_STATUS_FREE) {
- pr_err("%s Logical Unit Number: %u is not free on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- spin_unlock(&tpg->tpg_lun_lock);
-
- return lun;
-}
-
-/* core_dev_get_lun():
- *
- *
- */
-static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked_lun)
-{
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER"
- "_TPG-1: %u for Target Portal Group: %hu\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- lun = tpg->tpg_lun_list[unpacked_lun];
-
- if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) {
- pr_err("%s Logical Unit Number: %u is not active on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return NULL;
- }
- spin_unlock(&tpg->tpg_lun_lock);
-
- return lun;
-}
-
struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
struct se_portal_group *tpg,
struct se_node_acl *nacl,
- u32 mapped_lun,
+ u64 mapped_lun,
int *ret)
{
struct se_lun_acl *lacl;
@@ -1325,7 +618,6 @@
return NULL;
}
- INIT_LIST_HEAD(&lacl->lacl_list);
lacl->mapped_lun = mapped_lun;
lacl->se_lun_nacl = nacl;
snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s",
@@ -1337,22 +629,16 @@
int core_dev_add_initiator_node_lun_acl(
struct se_portal_group *tpg,
struct se_lun_acl *lacl,
- u32 unpacked_lun,
+ struct se_lun *lun,
u32 lun_access)
{
- struct se_lun *lun;
- struct se_node_acl *nacl;
+ struct se_node_acl *nacl = lacl->se_lun_nacl;
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
- lun = core_dev_get_lun(tpg, unpacked_lun);
- if (!lun) {
- pr_err("%s Logical Unit Number: %u is not active on"
- " Target Portal Group: %hu, ignoring request.\n",
- tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- return -EINVAL;
- }
-
- nacl = lacl->se_lun_nacl;
if (!nacl)
return -EINVAL;
@@ -1366,52 +652,40 @@
lun_access, nacl, tpg) < 0)
return -EINVAL;
- spin_lock(&lun->lun_acl_lock);
- list_add_tail(&lacl->lacl_list, &lun->lun_acl_list);
- atomic_inc_mb(&lun->lun_acl_count);
- spin_unlock(&lun->lun_acl_lock);
-
- pr_debug("%s_TPG[%hu]_LUN[%u->%u] - Added %s ACL for "
+ pr_debug("%s_TPG[%hu]_LUN[%llu->%llu] - Added %s ACL for "
" InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), unpacked_lun, lacl->mapped_lun,
+ tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, lacl->mapped_lun,
(lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO",
lacl->initiatorname);
/*
* Check to see if there are any existing persistent reservation APTPL
* pre-registrations that need to be enabled for this LUN ACL..
*/
- core_scsi3_check_aptpl_registration(lun->lun_se_dev, tpg, lun, nacl,
+ core_scsi3_check_aptpl_registration(dev, tpg, lun, nacl,
lacl->mapped_lun);
return 0;
}
-/* core_dev_del_initiator_node_lun_acl():
- *
- *
- */
int core_dev_del_initiator_node_lun_acl(
- struct se_portal_group *tpg,
struct se_lun *lun,
struct se_lun_acl *lacl)
{
+ struct se_portal_group *tpg = lun->lun_tpg;
struct se_node_acl *nacl;
+ struct se_dev_entry *deve;
nacl = lacl->se_lun_nacl;
if (!nacl)
return -EINVAL;
- spin_lock(&lun->lun_acl_lock);
- list_del(&lacl->lacl_list);
- atomic_dec_mb(&lun->lun_acl_count);
- spin_unlock(&lun->lun_acl_lock);
+ mutex_lock(&nacl->lun_entry_mutex);
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (deve)
+ core_disable_device_list_for_node(lun, deve, nacl, tpg);
+ mutex_unlock(&nacl->lun_entry_mutex);
- core_disable_device_list_for_node(lun, NULL, lacl->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
-
- lacl->se_lun = NULL;
-
- pr_debug("%s_TPG[%hu]_LUN[%u] - Removed ACL for"
- " InitiatorNode: %s Mapped LUN: %u\n",
+ pr_debug("%s_TPG[%hu]_LUN[%llu] - Removed ACL for"
+ " InitiatorNode: %s Mapped LUN: %llu\n",
tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
lacl->initiatorname, lacl->mapped_lun);
@@ -1424,7 +698,7 @@
struct se_lun_acl *lacl)
{
pr_debug("%s_TPG[%hu] - Freeing ACL for %s InitiatorNode: %s"
- " Mapped LUN: %u\n", tpg->se_tpg_tfo->get_fabric_name(),
+ " Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg),
tpg->se_tpg_tfo->get_fabric_name(),
lacl->initiatorname, lacl->mapped_lun);
@@ -1473,14 +747,15 @@
struct se_device *dev;
struct se_lun *xcopy_lun;
- dev = hba->transport->alloc_device(hba, name);
+ dev = hba->backend->ops->alloc_device(hba, name);
if (!dev)
return NULL;
dev->dev_link_magic = SE_DEV_LINK_MAGIC;
dev->se_hba = hba;
- dev->transport = hba->transport;
+ dev->transport = hba->backend->ops;
dev->prot_length = sizeof(struct se_dif_v1_tuple);
+ dev->hba_index = hba->hba_index;
INIT_LIST_HEAD(&dev->dev_list);
INIT_LIST_HEAD(&dev->dev_sep_list);
@@ -1513,9 +788,9 @@
dev->dev_attrib.da_dev = dev;
dev->dev_attrib.emulate_model_alias = DA_EMULATE_MODEL_ALIAS;
- dev->dev_attrib.emulate_dpo = DA_EMULATE_DPO;
- dev->dev_attrib.emulate_fua_write = DA_EMULATE_FUA_WRITE;
- dev->dev_attrib.emulate_fua_read = DA_EMULATE_FUA_READ;
+ dev->dev_attrib.emulate_dpo = 1;
+ dev->dev_attrib.emulate_fua_write = 1;
+ dev->dev_attrib.emulate_fua_read = 1;
dev->dev_attrib.emulate_write_cache = DA_EMULATE_WRITE_CACHE;
dev->dev_attrib.emulate_ua_intlck_ctrl = DA_EMULATE_UA_INTLLCK_CTRL;
dev->dev_attrib.emulate_tas = DA_EMULATE_TAS;
@@ -1537,12 +812,12 @@
dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN;
xcopy_lun = &dev->xcopy_lun;
- xcopy_lun->lun_se_dev = dev;
- init_completion(&xcopy_lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&xcopy_lun->lun_acl_list);
- spin_lock_init(&xcopy_lun->lun_acl_lock);
- spin_lock_init(&xcopy_lun->lun_sep_lock);
+ rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
init_completion(&xcopy_lun->lun_ref_comp);
+ INIT_LIST_HEAD(&xcopy_lun->lun_deve_list);
+ INIT_LIST_HEAD(&xcopy_lun->lun_dev_link);
+ mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
+ xcopy_lun->lun_tpg = &xcopy_pt_tpg;
return dev;
}
@@ -1679,7 +954,7 @@
goto out_free_hba;
}
- hba->transport->set_configfs_dev_params(dev, buf, sizeof(buf));
+ hba->backend->ops->set_configfs_dev_params(dev, buf, sizeof(buf));
ret = target_configure_device(dev);
if (ret)
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index 1f7886b..48a3698 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -46,27 +45,25 @@
#define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
{ \
- struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \
- struct config_item_type *cit = &tfc->tfc_##_name##_cit; \
+ struct config_item_type *cit = &tf->tf_##_name##_cit; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = _attrs; \
- cit->ct_owner = tf->tf_module; \
+ cit->ct_owner = tf->tf_ops->module; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
#define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \
static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
{ \
- struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \
- struct config_item_type *cit = &tfc->tfc_##_name##_cit; \
- struct configfs_attribute **attrs = tf->tf_ops.tfc_##_name##_attrs; \
+ struct config_item_type *cit = &tf->tf_##_name##_cit; \
+ struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \
\
cit->ct_item_ops = _item_ops; \
cit->ct_group_ops = _group_ops; \
cit->ct_attrs = attrs; \
- cit->ct_owner = tf->tf_module; \
+ cit->ct_owner = tf->tf_ops->module; \
pr_debug("Setup generic %s\n", __stringify(_name)); \
}
@@ -83,7 +80,7 @@
struct se_lun_acl, se_lun_group);
struct se_portal_group *se_tpg;
struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s;
- int ret = 0, lun_access;
+ int lun_access;
if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) {
pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:"
@@ -93,12 +90,11 @@
/*
* Ensure that the source port exists
*/
- if (!lun->lun_sep || !lun->lun_sep->sep_tpg) {
- pr_err("Source se_lun->lun_sep or lun->lun_sep->sep"
- "_tpg does not exist\n");
+ if (!lun->lun_se_dev) {
+ pr_err("Source se_lun->lun_se_dev does not exist\n");
return -EINVAL;
}
- se_tpg = lun->lun_sep->sep_tpg;
+ se_tpg = lun->lun_tpg;
nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
tpg_ci = &nacl_ci->ci_group->cg_item;
@@ -125,49 +121,35 @@
* which be will write protected (READ-ONLY) when
* tpg_1/attrib/demo_mode_write_protect=1
*/
- spin_lock_irq(&lacl->se_lun_nacl->device_list_lock);
- deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun];
- if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)
+ rcu_read_lock();
+ deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun);
+ if (deve)
lun_access = deve->lun_flags;
else
lun_access =
(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect(
se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
TRANSPORT_LUNFLAGS_READ_WRITE;
- spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
+ rcu_read_unlock();
/*
* Determine the actual mapped LUN value user wants..
*
* This value is what the SCSI Initiator actually sees the
- * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
+ * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
*/
- ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl,
- lun->unpacked_lun, lun_access);
-
- return (ret < 0) ? -EINVAL : 0;
+ return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access);
}
static int target_fabric_mappedlun_unlink(
struct config_item *lun_acl_ci,
struct config_item *lun_ci)
{
- struct se_lun *lun;
struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
struct se_lun_acl, se_lun_group);
- struct se_node_acl *nacl = lacl->se_lun_nacl;
- struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun];
- struct se_portal_group *se_tpg;
- /*
- * Determine if the underlying MappedLUN has already been released..
- */
- if (!deve->se_lun)
- return 0;
+ struct se_lun *lun = container_of(to_config_group(lun_ci),
+ struct se_lun, lun_group);
- lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
- se_tpg = lun->lun_sep->sep_tpg;
-
- core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl);
- return 0;
+ return core_dev_del_initiator_node_lun_acl(lun, lacl);
}
CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl);
@@ -183,14 +165,15 @@
{
struct se_node_acl *se_nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
- ssize_t len;
+ ssize_t len = 0;
- spin_lock_irq(&se_nacl->device_list_lock);
- deve = se_nacl->device_list[lacl->mapped_lun];
- len = sprintf(page, "%d\n",
- (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ?
- 1 : 0);
- spin_unlock_irq(&se_nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun);
+ if (deve) {
+ len = sprintf(page, "%d\n",
+ (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0);
+ }
+ rcu_read_unlock();
return len;
}
@@ -218,7 +201,7 @@
lacl->se_lun_nacl);
pr_debug("%s_ConfigFS: Changed Initiator ACL: %s"
- " Mapped LUN: %u Write Protect bit to %s\n",
+ " Mapped LUN: %llu Write Protect bit to %s\n",
se_tpg->se_tpg_tfo->get_fabric_name(),
lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
@@ -338,7 +321,7 @@
struct config_item *acl_ci;
struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
char *buf;
- unsigned long mapped_lun;
+ unsigned long long mapped_lun;
int ret = 0;
acl_ci = &group->cg_item;
@@ -366,21 +349,9 @@
* Determine the Mapped LUN value. This is what the SCSI Initiator
* Port will actually see.
*/
- ret = kstrtoul(buf + 4, 0, &mapped_lun);
+ ret = kstrtoull(buf + 4, 0, &mapped_lun);
if (ret)
goto out;
- if (mapped_lun > UINT_MAX) {
- ret = -EINVAL;
- goto out;
- }
- if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG"
- "-1: %u for Target Portal Group: %u\n", mapped_lun,
- TRANSPORT_MAX_LUNS_PER_TPG-1,
- se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
- ret = -EINVAL;
- goto out;
- }
lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl,
mapped_lun, &ret);
@@ -399,9 +370,9 @@
}
config_group_init_type_name(&lacl->se_lun_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit);
+ &tf->tf_tpg_mappedlun_cit);
config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
- "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit);
+ "statistics", &tf->tf_tpg_mappedlun_stat_cit);
lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
lacl_cg->default_groups[1] = NULL;
@@ -458,10 +429,11 @@
{
struct se_node_acl *se_nacl = container_of(to_config_group(item),
struct se_node_acl, acl_group);
- struct se_portal_group *se_tpg = se_nacl->se_tpg;
- struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
+ struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf;
- tf->tf_ops.fabric_drop_nodeacl(se_nacl);
+ if (tf->tf_ops->fabric_cleanup_nodeacl)
+ tf->tf_ops->fabric_cleanup_nodeacl(se_nacl);
+ core_tpg_del_initiator_node_acl(se_nacl);
}
static struct configfs_item_operations target_fabric_nacl_base_item_ops = {
@@ -501,15 +473,18 @@
struct se_node_acl *se_nacl;
struct config_group *nacl_cg;
- if (!tf->tf_ops.fabric_make_nodeacl) {
- pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n");
- return ERR_PTR(-ENOSYS);
- }
-
- se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name);
+ se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name);
if (IS_ERR(se_nacl))
return ERR_CAST(se_nacl);
+ if (tf->tf_ops->fabric_init_nodeacl) {
+ int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name);
+ if (ret) {
+ core_tpg_del_initiator_node_acl(se_nacl);
+ return ERR_PTR(ret);
+ }
+ }
+
nacl_cg = &se_nacl->acl_group;
nacl_cg->default_groups = se_nacl->acl_default_groups;
nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group;
@@ -519,16 +494,15 @@
nacl_cg->default_groups[4] = NULL;
config_group_init_type_name(&se_nacl->acl_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit);
+ &tf->tf_tpg_nacl_base_cit);
config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit);
+ &tf->tf_tpg_nacl_attrib_cit);
config_group_init_type_name(&se_nacl->acl_auth_group, "auth",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit);
+ &tf->tf_tpg_nacl_auth_cit);
config_group_init_type_name(&se_nacl->acl_param_group, "param",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit);
+ &tf->tf_tpg_nacl_param_cit);
config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
- "fabric_statistics",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit);
+ "fabric_statistics", &tf->tf_tpg_nacl_stat_cit);
return &se_nacl->acl_group;
}
@@ -575,7 +549,7 @@
struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
- tf->tf_ops.fabric_drop_np(se_tpg_np);
+ tf->tf_ops->fabric_drop_np(se_tpg_np);
}
static struct configfs_item_operations target_fabric_np_base_item_ops = {
@@ -599,18 +573,18 @@
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct se_tpg_np *se_tpg_np;
- if (!tf->tf_ops.fabric_make_np) {
+ if (!tf->tf_ops->fabric_make_np) {
pr_err("tf->tf_ops.fabric_make_np is NULL\n");
return ERR_PTR(-ENOSYS);
}
- se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name);
+ se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name);
if (!se_tpg_np || IS_ERR(se_tpg_np))
return ERR_PTR(-EINVAL);
se_tpg_np->tpg_np_parent = se_tpg;
config_group_init_type_name(&se_tpg_np->tpg_np_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_np_base_cit);
+ &tf->tf_tpg_np_base_cit);
return &se_tpg_np->tpg_np_group;
}
@@ -654,10 +628,10 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
- return core_alua_show_tg_pt_gp_info(lun->lun_sep, page);
+ return core_alua_show_tg_pt_gp_info(lun, page);
}
static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp(
@@ -665,10 +639,10 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
- return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count);
+ return core_alua_store_tg_pt_gp_info(lun, page, count);
}
TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR);
@@ -680,7 +654,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_offline_bit(lun, page);
@@ -691,7 +665,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_offline_bit(lun, page, count);
@@ -706,7 +680,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_secondary_status(lun, page);
@@ -717,7 +691,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_secondary_status(lun, page, count);
@@ -732,7 +706,7 @@
struct se_lun *lun,
char *page)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_show_secondary_write_metadata(lun, page);
@@ -743,7 +717,7 @@
const char *page,
size_t count)
{
- if (!lun || !lun->lun_sep)
+ if (!lun || !lun->lun_se_dev)
return -ENODEV;
return core_alua_store_secondary_write_metadata(lun, page, count);
@@ -769,7 +743,6 @@
struct config_item *tpg_ci;
struct se_lun *lun = container_of(to_config_group(lun_ci),
struct se_lun, lun_group);
- struct se_lun *lun_p;
struct se_portal_group *se_tpg;
struct se_device *dev =
container_of(to_config_group(se_dev_ci), struct se_device, dev_group);
@@ -797,20 +770,19 @@
return -EEXIST;
}
- lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun);
- if (IS_ERR(lun_p)) {
- pr_err("core_dev_add_lun() failed\n");
- ret = PTR_ERR(lun_p);
+ ret = core_dev_add_lun(se_tpg, dev, lun);
+ if (ret) {
+ pr_err("core_dev_add_lun() failed: %d\n", ret);
goto out;
}
- if (tf->tf_ops.fabric_post_link) {
+ if (tf->tf_ops->fabric_post_link) {
/*
* Call the optional fabric_post_link() to allow a
* fabric module to setup any additional state once
* core_dev_add_lun() has been called..
*/
- tf->tf_ops.fabric_post_link(se_tpg, lun);
+ tf->tf_ops->fabric_post_link(se_tpg, lun);
}
return 0;
@@ -824,25 +796,34 @@
{
struct se_lun *lun = container_of(to_config_group(lun_ci),
struct se_lun, lun_group);
- struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg;
+ struct se_portal_group *se_tpg = lun->lun_tpg;
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
- if (tf->tf_ops.fabric_pre_unlink) {
+ if (tf->tf_ops->fabric_pre_unlink) {
/*
* Call the optional fabric_pre_unlink() to allow a
* fabric module to release any additional stat before
* core_dev_del_lun() is called.
*/
- tf->tf_ops.fabric_pre_unlink(se_tpg, lun);
+ tf->tf_ops->fabric_pre_unlink(se_tpg, lun);
}
core_dev_del_lun(se_tpg, lun);
return 0;
}
+static void target_fabric_port_release(struct config_item *item)
+{
+ struct se_lun *lun = container_of(to_config_group(item),
+ struct se_lun, lun_group);
+
+ kfree_rcu(lun, rcu_head);
+}
+
static struct configfs_item_operations target_fabric_port_item_ops = {
.show_attribute = target_fabric_port_attr_show,
.store_attribute = target_fabric_port_attr_store,
+ .release = target_fabric_port_release,
.allow_link = target_fabric_port_link,
.drop_link = target_fabric_port_unlink,
};
@@ -887,7 +868,7 @@
struct se_portal_group, tpg_lun_group);
struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
- unsigned long unpacked_lun;
+ unsigned long long unpacked_lun;
int errno;
if (strstr(name, "lun_") != name) {
@@ -895,28 +876,27 @@
" \"lun_$LUN_NUMBER\"\n");
return ERR_PTR(-EINVAL);
}
- errno = kstrtoul(name + 4, 0, &unpacked_lun);
+ errno = kstrtoull(name + 4, 0, &unpacked_lun);
if (errno)
return ERR_PTR(errno);
- if (unpacked_lun > UINT_MAX)
- return ERR_PTR(-EINVAL);
- lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
- if (!lun)
- return ERR_PTR(-EINVAL);
+ lun = core_tpg_alloc_lun(se_tpg, unpacked_lun);
+ if (IS_ERR(lun))
+ return ERR_CAST(lun);
lun_cg = &lun->lun_group;
lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
GFP_KERNEL);
if (!lun_cg->default_groups) {
pr_err("Unable to allocate lun_cg->default_groups\n");
+ kfree(lun);
return ERR_PTR(-ENOMEM);
}
config_group_init_type_name(&lun->lun_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_port_cit);
+ &tf->tf_tpg_port_cit);
config_group_init_type_name(&lun->port_stat_grps.stat_group,
- "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit);
+ "statistics", &tf->tf_tpg_port_stat_cit);
lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
lun_cg->default_groups[1] = NULL;
@@ -926,6 +906,7 @@
if (!port_stat_grp->default_groups) {
pr_err("Unable to allocate port_stat_grp->default_groups\n");
kfree(lun_cg->default_groups);
+ kfree(lun);
return ERR_PTR(-ENOMEM);
}
target_stat_setup_port_default_groups(lun);
@@ -1023,7 +1004,7 @@
struct se_wwn *wwn = se_tpg->se_tpg_wwn;
struct target_fabric_configfs *tf = wwn->wwn_tf;
- tf->tf_ops.fabric_drop_tpg(se_tpg);
+ tf->tf_ops->fabric_drop_tpg(se_tpg);
}
static struct configfs_item_operations target_fabric_tpg_base_item_ops = {
@@ -1046,12 +1027,12 @@
struct target_fabric_configfs *tf = wwn->wwn_tf;
struct se_portal_group *se_tpg;
- if (!tf->tf_ops.fabric_make_tpg) {
- pr_err("tf->tf_ops.fabric_make_tpg is NULL\n");
+ if (!tf->tf_ops->fabric_make_tpg) {
+ pr_err("tf->tf_ops->fabric_make_tpg is NULL\n");
return ERR_PTR(-ENOSYS);
}
- se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name);
+ se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name);
if (!se_tpg || IS_ERR(se_tpg))
return ERR_PTR(-EINVAL);
/*
@@ -1067,19 +1048,19 @@
se_tpg->tpg_group.default_groups[6] = NULL;
config_group_init_type_name(&se_tpg->tpg_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_base_cit);
+ &tf->tf_tpg_base_cit);
config_group_init_type_name(&se_tpg->tpg_lun_group, "lun",
- &tf->tf_cit_tmpl.tfc_tpg_lun_cit);
+ &tf->tf_tpg_lun_cit);
config_group_init_type_name(&se_tpg->tpg_np_group, "np",
- &tf->tf_cit_tmpl.tfc_tpg_np_cit);
+ &tf->tf_tpg_np_cit);
config_group_init_type_name(&se_tpg->tpg_acl_group, "acls",
- &tf->tf_cit_tmpl.tfc_tpg_nacl_cit);
+ &tf->tf_tpg_nacl_cit);
config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
- &tf->tf_cit_tmpl.tfc_tpg_attrib_cit);
+ &tf->tf_tpg_attrib_cit);
config_group_init_type_name(&se_tpg->tpg_auth_group, "auth",
- &tf->tf_cit_tmpl.tfc_tpg_auth_cit);
+ &tf->tf_tpg_auth_cit);
config_group_init_type_name(&se_tpg->tpg_param_group, "param",
- &tf->tf_cit_tmpl.tfc_tpg_param_cit);
+ &tf->tf_tpg_param_cit);
return &se_tpg->tpg_group;
}
@@ -1112,7 +1093,7 @@
struct se_wwn, wwn_group);
struct target_fabric_configfs *tf = wwn->wwn_tf;
- tf->tf_ops.fabric_drop_wwn(wwn);
+ tf->tf_ops->fabric_drop_wwn(wwn);
}
static struct configfs_item_operations target_fabric_tpg_item_ops = {
@@ -1148,12 +1129,12 @@
struct target_fabric_configfs, tf_group);
struct se_wwn *wwn;
- if (!tf->tf_ops.fabric_make_wwn) {
+ if (!tf->tf_ops->fabric_make_wwn) {
pr_err("tf->tf_ops.fabric_make_wwn is NULL\n");
return ERR_PTR(-ENOSYS);
}
- wwn = tf->tf_ops.fabric_make_wwn(tf, group, name);
+ wwn = tf->tf_ops->fabric_make_wwn(tf, group, name);
if (!wwn || IS_ERR(wwn))
return ERR_PTR(-EINVAL);
@@ -1165,10 +1146,9 @@
wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group;
wwn->wwn_group.default_groups[1] = NULL;
- config_group_init_type_name(&wwn->wwn_group, name,
- &tf->tf_cit_tmpl.tfc_tpg_cit);
+ config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit);
config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
- &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit);
+ &tf->tf_wwn_fabric_stats_cit);
return &wwn->wwn_group;
}
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index 41f4f27..cb6497c 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -24,6 +24,11 @@
*
******************************************************************************/
+/*
+ * See SPC4, section 7.5 "Protocol specific parameters" for details
+ * on the formats implemented in this file.
+ */
+
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ctype.h>
@@ -34,124 +39,30 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
-/*
- * Handlers for Serial Attached SCSI (SAS)
- */
-u8 sas_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- /*
- * Return a SAS Serial SCSI Protocol identifier for loopback operations
- * This is defined in section 7.5.1 Table 362 in spc4r17
- */
- return 0x6;
-}
-EXPORT_SYMBOL(sas_get_fabric_proto_ident);
-u32 sas_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
+static int sas_get_pr_transport_id(
+ struct se_node_acl *nacl,
int *format_code,
unsigned char *buf)
{
- unsigned char *ptr;
int ret;
- /*
- * Set PROTOCOL IDENTIFIER to 6h for SAS
- */
- buf[0] = 0x06;
- /*
- * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
- * over SAS Serial SCSI Protocol
- */
- ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */
+ /* Skip over 'naa. prefix */
+ ret = hex2bin(&buf[4], &nacl->initiatorname[4], 8);
+ if (ret) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
- ret = hex2bin(&buf[4], ptr, 8);
- if (ret < 0)
- pr_debug("sas transport_id: invalid hex string\n");
-
- /*
- * The SAS Transport ID is a hardcoded 24-byte length
- */
return 24;
}
-EXPORT_SYMBOL(sas_get_pr_transport_id);
-u32 sas_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
+static int fc_get_pr_transport_id(
struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
- * over SAS Serial SCSI Protocol
- *
- * The SAS Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-EXPORT_SYMBOL(sas_get_pr_transport_id_len);
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-char *sas_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- /*
- * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
- * for initiator ports using SCSI over SAS Serial SCSI Protocol
- *
- * The TransportID for a SAS Initiator Port is of fixed size of
- * 24 bytes, and SAS does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
-
- return (char *)&buf[4];
-}
-EXPORT_SYMBOL(sas_parse_pr_out_transport_id);
-
-/*
- * Handlers for Fibre Channel Protocol (FCP)
- */
-u8 fc_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- return 0x0; /* 0 = fcp-2 per SPC4 section 7.5.1 */
-}
-EXPORT_SYMBOL(fc_get_fabric_proto_ident);
-
-u32 fc_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- *format_code = 0;
- /*
- * The FC Transport ID is a hardcoded 24-byte length
- */
- return 24;
-}
-EXPORT_SYMBOL(fc_get_pr_transport_id_len);
-
-u32 fc_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
int *format_code,
unsigned char *buf)
{
@@ -160,24 +71,20 @@
u32 off = 8;
/*
- * PROTOCOL IDENTIFIER is 0h for FCP-2
- *
- * From spc4r17, 7.5.4.2 TransportID for initiator ports using
- * SCSI over Fibre Channel
- *
* We convert the ASCII formatted N Port name into a binary
* encoded TransportID.
*/
ptr = &se_nacl->initiatorname[0];
-
for (i = 0; i < 24; ) {
if (!strncmp(&ptr[i], ":", 1)) {
i++;
continue;
}
ret = hex2bin(&buf[off++], &ptr[i], 1);
- if (ret < 0)
- pr_debug("fc transport_id: invalid hex string\n");
+ if (ret < 0) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
i += 2;
}
/*
@@ -185,42 +92,52 @@
*/
return 24;
}
-EXPORT_SYMBOL(fc_get_pr_transport_id);
-char *fc_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
+static int sbp_get_pr_transport_id(
+ struct se_node_acl *nacl,
+ int *format_code,
+ unsigned char *buf)
{
- /*
- * The TransportID for a FC N Port is of fixed size of
- * 24 bytes, and FC does not contain a I_T nexus identifier,
- * so we return the **port_nexus_ptr set to NULL.
- */
- *port_nexus_ptr = NULL;
- *out_tid_len = 24;
+ int ret;
- return (char *)&buf[8];
+ ret = hex2bin(&buf[8], nacl->initiatorname, 8);
+ if (ret) {
+ pr_debug("%s: invalid hex string\n", __func__);
+ return ret;
+ }
+
+ return 24;
}
-EXPORT_SYMBOL(fc_parse_pr_out_transport_id);
-/*
- * Handlers for Internet Small Computer Systems Interface (iSCSI)
- */
-
-u8 iscsi_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+static int srp_get_pr_transport_id(
+ struct se_node_acl *nacl,
+ int *format_code,
+ unsigned char *buf)
{
- /*
- * This value is defined for "Internet SCSI (iSCSI)"
- * in spc4r17 section 7.5.1 Table 362
- */
- return 0x5;
-}
-EXPORT_SYMBOL(iscsi_get_fabric_proto_ident);
+ const char *p;
+ unsigned len, count, leading_zero_bytes;
+ int rc;
-u32 iscsi_get_pr_transport_id(
- struct se_portal_group *se_tpg,
+ p = nacl->initiatorname;
+ if (strncasecmp(p, "0x", 2) == 0)
+ p += 2;
+ len = strlen(p);
+ if (len % 2)
+ return -EINVAL;
+
+ count = min(len / 2, 16U);
+ leading_zero_bytes = 16 - count;
+ memset(buf + 8, 0, leading_zero_bytes);
+ rc = hex2bin(buf + 8 + leading_zero_bytes, p, count);
+ if (rc < 0) {
+ pr_debug("hex2bin failed for %s: %d\n", __func__, rc);
+ return rc;
+ }
+
+ return 24;
+}
+
+static int iscsi_get_pr_transport_id(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code,
@@ -231,10 +148,6 @@
spin_lock_irq(&se_nacl->nacl_sess_lock);
/*
- * Set PROTOCOL IDENTIFIER to 5h for iSCSI
- */
- buf[0] = 0x05;
- /*
* From spc4r17 Section 7.5.4.6: TransportID for initiator
* ports using SCSI over iSCSI.
*
@@ -313,10 +226,8 @@
return len;
}
-EXPORT_SYMBOL(iscsi_get_pr_transport_id);
-u32 iscsi_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
+static int iscsi_get_pr_transport_id_len(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code)
@@ -359,9 +270,8 @@
return len;
}
-EXPORT_SYMBOL(iscsi_get_pr_transport_id_len);
-char *iscsi_parse_pr_out_transport_id(
+static char *iscsi_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
@@ -448,4 +358,79 @@
return (char *)&buf[4];
}
-EXPORT_SYMBOL(iscsi_parse_pr_out_transport_id);
+
+int target_get_pr_transport_id_len(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code)
+{
+ switch (nacl->se_tpg->proto_id) {
+ case SCSI_PROTOCOL_FCP:
+ case SCSI_PROTOCOL_SBP:
+ case SCSI_PROTOCOL_SRP:
+ case SCSI_PROTOCOL_SAS:
+ break;
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_get_pr_transport_id_len(nacl, pr_reg, format_code);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
+ return -EINVAL;
+ }
+
+ /*
+ * Most transports use a fixed length 24 byte identifier.
+ */
+ *format_code = 0;
+ return 24;
+}
+
+int target_get_pr_transport_id(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code,
+ unsigned char *buf)
+{
+ switch (nacl->se_tpg->proto_id) {
+ case SCSI_PROTOCOL_SAS:
+ return sas_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_SBP:
+ return sbp_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_SRP:
+ return srp_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_FCP:
+ return fc_get_pr_transport_id(nacl, format_code, buf);
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_get_pr_transport_id(nacl, pr_reg, format_code,
+ buf);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
+ return -EINVAL;
+ }
+}
+
+const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
+ const char *buf, u32 *out_tid_len, char **port_nexus_ptr)
+{
+ u32 offset;
+
+ switch (tpg->proto_id) {
+ case SCSI_PROTOCOL_SAS:
+ /*
+ * Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
+ * for initiator ports using SCSI over SAS Serial SCSI Protocol.
+ */
+ offset = 4;
+ break;
+ case SCSI_PROTOCOL_SBP:
+ case SCSI_PROTOCOL_SRP:
+ case SCSI_PROTOCOL_FCP:
+ offset = 8;
+ break;
+ case SCSI_PROTOCOL_ISCSI:
+ return iscsi_parse_pr_out_transport_id(tpg, buf, out_tid_len,
+ port_nexus_ptr);
+ default:
+ pr_err("Unknown proto_id: 0x%02x\n", tpg->proto_id);
+ return NULL;
+ }
+
+ *port_nexus_ptr = NULL;
+ *out_tid_len = 24;
+ return buf + offset;
+}
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 6641713..e319570 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -37,7 +37,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_file.h"
@@ -46,10 +45,6 @@
return container_of(dev, struct fd_dev, dev);
}
-/* fd_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int fd_attach_hba(struct se_hba *hba, u32 host_id)
{
struct fd_host *fd_host;
@@ -66,7 +61,7 @@
pr_debug("CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
" Target Core Stack %s\n", hba->hba_id, FD_VERSION,
- TARGET_CORE_MOD_VERSION);
+ TARGET_CORE_VERSION);
pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic\n",
hba->hba_id, fd_host->fd_host_id);
@@ -246,6 +241,14 @@
return ret;
}
+static void fd_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct fd_dev *fd_dev = FD_DEV(dev);
+
+ kfree(fd_dev);
+}
+
static void fd_free_device(struct se_device *dev)
{
struct fd_dev *fd_dev = FD_DEV(dev);
@@ -254,79 +257,18 @@
filp_close(fd_dev->fd_file, NULL);
fd_dev->fd_file = NULL;
}
-
- kfree(fd_dev);
+ call_rcu(&dev->rcu_head, fd_dev_call_rcu);
}
-static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot,
- int is_write)
+static int fd_do_rw(struct se_cmd *cmd, struct file *fd,
+ u32 block_size, struct scatterlist *sgl,
+ u32 sgl_nents, u32 data_length, int is_write)
{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *dev = FD_DEV(se_dev);
- struct file *prot_fd = dev->fd_prot_file;
- loff_t pos = (cmd->t_task_lba * se_dev->prot_length);
- unsigned char *buf;
- u32 prot_size;
- int rc, ret = 1;
-
- prot_size = (cmd->data_length / se_dev->dev_attrib.block_size) *
- se_dev->prot_length;
-
- if (!is_write) {
- fd_prot->prot_buf = kzalloc(prot_size, GFP_KERNEL);
- if (!fd_prot->prot_buf) {
- pr_err("Unable to allocate fd_prot->prot_buf\n");
- return -ENOMEM;
- }
- buf = fd_prot->prot_buf;
-
- fd_prot->prot_sg_nents = 1;
- fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist),
- GFP_KERNEL);
- if (!fd_prot->prot_sg) {
- pr_err("Unable to allocate fd_prot->prot_sg\n");
- kfree(fd_prot->prot_buf);
- return -ENOMEM;
- }
- sg_init_table(fd_prot->prot_sg, fd_prot->prot_sg_nents);
- sg_set_buf(fd_prot->prot_sg, buf, prot_size);
- }
-
- if (is_write) {
- rc = kernel_write(prot_fd, fd_prot->prot_buf, prot_size, pos);
- if (rc < 0 || prot_size != rc) {
- pr_err("kernel_write() for fd_do_prot_rw failed:"
- " %d\n", rc);
- ret = -EINVAL;
- }
- } else {
- rc = kernel_read(prot_fd, pos, fd_prot->prot_buf, prot_size);
- if (rc < 0) {
- pr_err("kernel_read() for fd_do_prot_rw failed:"
- " %d\n", rc);
- ret = -EINVAL;
- }
- }
-
- if (is_write || ret < 0) {
- kfree(fd_prot->prot_sg);
- kfree(fd_prot->prot_buf);
- }
-
- return ret;
-}
-
-static int fd_do_rw(struct se_cmd *cmd, struct scatterlist *sgl,
- u32 sgl_nents, int is_write)
-{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *dev = FD_DEV(se_dev);
- struct file *fd = dev->fd_file;
struct scatterlist *sg;
struct iov_iter iter;
struct bio_vec *bvec;
ssize_t len = 0;
- loff_t pos = (cmd->t_task_lba * se_dev->dev_attrib.block_size);
+ loff_t pos = (cmd->t_task_lba * block_size);
int ret = 0, i;
bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL);
@@ -352,7 +294,7 @@
kfree(bvec);
if (is_write) {
- if (ret < 0 || ret != cmd->data_length) {
+ if (ret < 0 || ret != data_length) {
pr_err("%s() write returned %d\n", __func__, ret);
return (ret < 0 ? ret : -EINVAL);
}
@@ -363,10 +305,10 @@
* block_device.
*/
if (S_ISBLK(file_inode(fd)->i_mode)) {
- if (ret < 0 || ret != cmd->data_length) {
+ if (ret < 0 || ret != data_length) {
pr_err("%s() returned %d, expecting %u for "
"S_ISBLK\n", __func__, ret,
- cmd->data_length);
+ data_length);
return (ret < 0 ? ret : -EINVAL);
}
} else {
@@ -533,9 +475,9 @@
}
static sense_reason_t
-fd_do_unmap(struct se_cmd *cmd, void *priv, sector_t lba, sector_t nolb)
+fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
{
- struct file *file = priv;
+ struct file *file = FD_DEV(cmd->se_dev)->fd_file;
struct inode *inode = file->f_mapping->host;
int ret;
@@ -577,42 +519,13 @@
}
static sense_reason_t
-fd_execute_write_same_unmap(struct se_cmd *cmd)
-{
- struct se_device *se_dev = cmd->se_dev;
- struct fd_dev *fd_dev = FD_DEV(se_dev);
- struct file *file = fd_dev->fd_file;
- sector_t lba = cmd->t_task_lba;
- sector_t nolb = sbc_get_write_same_sectors(cmd);
- sense_reason_t ret;
-
- if (!nolb) {
- target_complete_cmd(cmd, SAM_STAT_GOOD);
- return 0;
- }
-
- ret = fd_do_unmap(cmd, file, lba, nolb);
- if (ret)
- return ret;
-
- target_complete_cmd(cmd, GOOD);
- return 0;
-}
-
-static sense_reason_t
-fd_execute_unmap(struct se_cmd *cmd)
-{
- struct file *file = FD_DEV(cmd->se_dev)->fd_file;
-
- return sbc_execute_unmap(cmd, fd_do_unmap, file);
-}
-
-static sense_reason_t
fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
enum dma_data_direction data_direction)
{
struct se_device *dev = cmd->se_dev;
- struct fd_prot fd_prot;
+ struct fd_dev *fd_dev = FD_DEV(dev);
+ struct file *file = fd_dev->fd_file;
+ struct file *pfile = fd_dev->fd_prot_file;
sense_reason_t rc;
int ret = 0;
/*
@@ -630,58 +543,45 @@
* physical memory addresses to struct iovec virtual memory.
*/
if (data_direction == DMA_FROM_DEVICE) {
- memset(&fd_prot, 0, sizeof(struct fd_prot));
-
if (cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- ret = fd_do_prot_rw(cmd, &fd_prot, false);
+ ret = fd_do_rw(cmd, pfile, dev->prot_length,
+ cmd->t_prot_sg, cmd->t_prot_nents,
+ cmd->prot_length, 0);
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- ret = fd_do_rw(cmd, sgl, sgl_nents, 0);
+ ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size,
+ sgl, sgl_nents, cmd->data_length, 0);
if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- u32 sectors = cmd->data_length / dev->dev_attrib.block_size;
+ u32 sectors = cmd->data_length >>
+ ilog2(dev->dev_attrib.block_size);
- rc = sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors,
- 0, fd_prot.prot_sg, 0);
- if (rc) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors,
+ 0, cmd->t_prot_sg, 0);
+ if (rc)
return rc;
- }
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
}
} else {
- memset(&fd_prot, 0, sizeof(struct fd_prot));
-
if (cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- u32 sectors = cmd->data_length / dev->dev_attrib.block_size;
+ u32 sectors = cmd->data_length >>
+ ilog2(dev->dev_attrib.block_size);
- ret = fd_do_prot_rw(cmd, &fd_prot, false);
- if (ret < 0)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-
- rc = sbc_dif_verify_write(cmd, cmd->t_task_lba, sectors,
- 0, fd_prot.prot_sg, 0);
- if (rc) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors,
+ 0, cmd->t_prot_sg, 0);
+ if (rc)
return rc;
- }
}
- ret = fd_do_rw(cmd, sgl, sgl_nents, 1);
+ ret = fd_do_rw(cmd, file, dev->dev_attrib.block_size,
+ sgl, sgl_nents, cmd->data_length, 1);
/*
* Perform implicit vfs_fsync_range() for fd_do_writev() ops
* for SCSI WRITEs with Forced Unit Access (FUA) set.
* Allow this to happen independent of WCE=0 setting.
*/
- if (ret > 0 &&
- dev->dev_attrib.emulate_fua_write > 0 &&
- (cmd->se_cmd_flags & SCF_FUA)) {
- struct fd_dev *fd_dev = FD_DEV(dev);
+ if (ret > 0 && (cmd->se_cmd_flags & SCF_FUA)) {
loff_t start = cmd->t_task_lba *
dev->dev_attrib.block_size;
loff_t end;
@@ -695,17 +595,16 @@
}
if (ret > 0 && cmd->prot_type && dev->dev_attrib.pi_prot_type) {
- ret = fd_do_prot_rw(cmd, &fd_prot, true);
+ ret = fd_do_rw(cmd, pfile, dev->prot_length,
+ cmd->t_prot_sg, cmd->t_prot_nents,
+ cmd->prot_length, 1);
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
}
- if (ret < 0) {
- kfree(fd_prot.prot_sg);
- kfree(fd_prot.prot_buf);
+ if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
if (ret)
target_complete_cmd(cmd, SAM_STAT_GOOD);
@@ -908,7 +807,6 @@
.execute_rw = fd_execute_rw,
.execute_sync_cache = fd_execute_sync_cache,
.execute_write_same = fd_execute_write_same,
- .execute_write_same_unmap = fd_execute_write_same_unmap,
.execute_unmap = fd_execute_unmap,
};
@@ -918,42 +816,7 @@
return sbc_parse_cdb(cmd, &fd_sbc_ops);
}
-DEF_TB_DEFAULT_ATTRIBS(fileio);
-
-static struct configfs_attribute *fileio_backend_dev_attrs[] = {
- &fileio_dev_attrib_emulate_model_alias.attr,
- &fileio_dev_attrib_emulate_dpo.attr,
- &fileio_dev_attrib_emulate_fua_write.attr,
- &fileio_dev_attrib_emulate_fua_read.attr,
- &fileio_dev_attrib_emulate_write_cache.attr,
- &fileio_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &fileio_dev_attrib_emulate_tas.attr,
- &fileio_dev_attrib_emulate_tpu.attr,
- &fileio_dev_attrib_emulate_tpws.attr,
- &fileio_dev_attrib_emulate_caw.attr,
- &fileio_dev_attrib_emulate_3pc.attr,
- &fileio_dev_attrib_pi_prot_type.attr,
- &fileio_dev_attrib_hw_pi_prot_type.attr,
- &fileio_dev_attrib_pi_prot_format.attr,
- &fileio_dev_attrib_enforce_pr_isids.attr,
- &fileio_dev_attrib_is_nonrot.attr,
- &fileio_dev_attrib_emulate_rest_reord.attr,
- &fileio_dev_attrib_force_pr_aptpl.attr,
- &fileio_dev_attrib_hw_block_size.attr,
- &fileio_dev_attrib_block_size.attr,
- &fileio_dev_attrib_hw_max_sectors.attr,
- &fileio_dev_attrib_optimal_sectors.attr,
- &fileio_dev_attrib_hw_queue_depth.attr,
- &fileio_dev_attrib_queue_depth.attr,
- &fileio_dev_attrib_max_unmap_lba_count.attr,
- &fileio_dev_attrib_max_unmap_block_desc_count.attr,
- &fileio_dev_attrib_unmap_granularity.attr,
- &fileio_dev_attrib_unmap_granularity_alignment.attr,
- &fileio_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api fileio_template = {
+static const struct target_backend_ops fileio_ops = {
.name = "fileio",
.inquiry_prod = "FILEIO",
.inquiry_rev = FD_VERSION,
@@ -971,21 +834,17 @@
.init_prot = fd_init_prot,
.format_prot = fd_format_prot,
.free_prot = fd_free_prot,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
static int __init fileio_module_init(void)
{
- struct target_backend_cits *tbc = &fileio_template.tb_cits;
-
- target_core_setup_sub_cits(&fileio_template);
- tbc->tb_dev_attrib_cit.ct_attrs = fileio_backend_dev_attrs;
-
- return transport_subsystem_register(&fileio_template);
+ return transport_backend_register(&fileio_ops);
}
static void __exit fileio_module_exit(void)
{
- transport_subsystem_release(&fileio_template);
+ target_backend_unregister(&fileio_ops);
}
MODULE_DESCRIPTION("TCM FILEIO subsystem plugin");
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index 182cbb2..068966f 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -21,12 +21,6 @@
#define FDBD_HAS_BUFFERED_IO_WCE 0x04
#define FDBD_FORMAT_UNIT_SIZE 2048
-struct fd_prot {
- unsigned char *prot_buf;
- struct scatterlist *prot_sg;
- u32 prot_sg_nents;
-};
-
struct fd_dev {
struct se_device dev;
diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c
index ff95f95..62ea4e8 100644
--- a/drivers/target/target_core_hba.c
+++ b/drivers/target/target_core_hba.c
@@ -36,67 +36,78 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
-static LIST_HEAD(subsystem_list);
-static DEFINE_MUTEX(subsystem_mutex);
+static LIST_HEAD(backend_list);
+static DEFINE_MUTEX(backend_mutex);
static u32 hba_id_counter;
static DEFINE_SPINLOCK(hba_lock);
static LIST_HEAD(hba_list);
-int transport_subsystem_register(struct se_subsystem_api *sub_api)
+
+int transport_backend_register(const struct target_backend_ops *ops)
{
- struct se_subsystem_api *s;
+ struct target_backend *tb, *old;
- INIT_LIST_HEAD(&sub_api->sub_api_list);
+ tb = kzalloc(sizeof(*tb), GFP_KERNEL);
+ if (!tb)
+ return -ENOMEM;
+ tb->ops = ops;
- mutex_lock(&subsystem_mutex);
- list_for_each_entry(s, &subsystem_list, sub_api_list) {
- if (!strcmp(s->name, sub_api->name)) {
- pr_err("%p is already registered with"
- " duplicate name %s, unable to process"
- " request\n", s, s->name);
- mutex_unlock(&subsystem_mutex);
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(old, &backend_list, list) {
+ if (!strcmp(old->ops->name, ops->name)) {
+ pr_err("backend %s already registered.\n", ops->name);
+ mutex_unlock(&backend_mutex);
+ kfree(tb);
return -EEXIST;
}
}
- list_add_tail(&sub_api->sub_api_list, &subsystem_list);
- mutex_unlock(&subsystem_mutex);
+ target_setup_backend_cits(tb);
+ list_add_tail(&tb->list, &backend_list);
+ mutex_unlock(&backend_mutex);
- pr_debug("TCM: Registered subsystem plugin: %s struct module:"
- " %p\n", sub_api->name, sub_api->owner);
+ pr_debug("TCM: Registered subsystem plugin: %s struct module: %p\n",
+ ops->name, ops->owner);
return 0;
}
-EXPORT_SYMBOL(transport_subsystem_register);
+EXPORT_SYMBOL(transport_backend_register);
-void transport_subsystem_release(struct se_subsystem_api *sub_api)
+void target_backend_unregister(const struct target_backend_ops *ops)
{
- mutex_lock(&subsystem_mutex);
- list_del(&sub_api->sub_api_list);
- mutex_unlock(&subsystem_mutex);
+ struct target_backend *tb;
+
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(tb, &backend_list, list) {
+ if (tb->ops == ops) {
+ list_del(&tb->list);
+ kfree(tb);
+ break;
+ }
+ }
+ mutex_unlock(&backend_mutex);
}
-EXPORT_SYMBOL(transport_subsystem_release);
+EXPORT_SYMBOL(target_backend_unregister);
-static struct se_subsystem_api *core_get_backend(const char *sub_name)
+static struct target_backend *core_get_backend(const char *name)
{
- struct se_subsystem_api *s;
+ struct target_backend *tb;
- mutex_lock(&subsystem_mutex);
- list_for_each_entry(s, &subsystem_list, sub_api_list) {
- if (!strcmp(s->name, sub_name))
+ mutex_lock(&backend_mutex);
+ list_for_each_entry(tb, &backend_list, list) {
+ if (!strcmp(tb->ops->name, name))
goto found;
}
- mutex_unlock(&subsystem_mutex);
+ mutex_unlock(&backend_mutex);
return NULL;
found:
- if (s->owner && !try_module_get(s->owner))
- s = NULL;
- mutex_unlock(&subsystem_mutex);
- return s;
+ if (tb->ops->owner && !try_module_get(tb->ops->owner))
+ tb = NULL;
+ mutex_unlock(&backend_mutex);
+ return tb;
}
struct se_hba *
@@ -117,13 +128,13 @@
hba->hba_index = scsi_get_new_index(SCSI_INST_INDEX);
hba->hba_flags |= hba_flags;
- hba->transport = core_get_backend(plugin_name);
- if (!hba->transport) {
+ hba->backend = core_get_backend(plugin_name);
+ if (!hba->backend) {
ret = -EINVAL;
goto out_free_hba;
}
- ret = hba->transport->attach_hba(hba, plugin_dep_id);
+ ret = hba->backend->ops->attach_hba(hba, plugin_dep_id);
if (ret < 0)
goto out_module_put;
@@ -138,8 +149,8 @@
return hba;
out_module_put:
- module_put(hba->transport->owner);
- hba->transport = NULL;
+ module_put(hba->backend->ops->owner);
+ hba->backend = NULL;
out_free_hba:
kfree(hba);
return ERR_PTR(ret);
@@ -150,7 +161,7 @@
{
WARN_ON(hba->dev_count);
- hba->transport->detach_hba(hba);
+ hba->backend->ops->detach_hba(hba);
spin_lock(&hba_lock);
list_del(&hba->hba_node);
@@ -159,9 +170,9 @@
pr_debug("CORE_HBA[%d] - Detached HBA from Generic Target"
" Core\n", hba->hba_id);
- module_put(hba->transport->owner);
+ module_put(hba->backend->ops->owner);
- hba->transport = NULL;
+ hba->backend = NULL;
kfree(hba);
return 0;
}
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 972ed17..6d88d24 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -40,7 +40,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_iblock.h"
@@ -53,17 +52,11 @@
}
-static struct se_subsystem_api iblock_template;
-
-/* iblock_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int iblock_attach_hba(struct se_hba *hba, u32 host_id)
{
pr_debug("CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- IBLOCK_VERSION, TARGET_CORE_MOD_VERSION);
+ IBLOCK_VERSION, TARGET_CORE_VERSION);
return 0;
}
@@ -197,6 +190,14 @@
return ret;
}
+static void iblock_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+
+ kfree(ib_dev);
+}
+
static void iblock_free_device(struct se_device *dev)
{
struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
@@ -206,7 +207,7 @@
if (ib_dev->ibd_bio_set != NULL)
bioset_free(ib_dev->ibd_bio_set);
- kfree(ib_dev);
+ call_rcu(&dev->rcu_head, iblock_dev_call_rcu);
}
static unsigned long long iblock_emulate_read_cap_with_block_size(
@@ -414,10 +415,9 @@
}
static sense_reason_t
-iblock_do_unmap(struct se_cmd *cmd, void *priv,
- sector_t lba, sector_t nolb)
+iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
{
- struct block_device *bdev = priv;
+ struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
int ret;
ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0);
@@ -430,30 +430,6 @@
}
static sense_reason_t
-iblock_execute_unmap(struct se_cmd *cmd)
-{
- struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
-
- return sbc_execute_unmap(cmd, iblock_do_unmap, bdev);
-}
-
-static sense_reason_t
-iblock_execute_write_same_unmap(struct se_cmd *cmd)
-{
- struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
- sector_t lba = cmd->t_task_lba;
- sector_t nolb = sbc_get_write_same_sectors(cmd);
- sense_reason_t ret;
-
- ret = iblock_do_unmap(cmd, bdev, lba, nolb);
- if (ret)
- return ret;
-
- target_complete_cmd(cmd, GOOD);
- return 0;
-}
-
-static sense_reason_t
iblock_execute_write_same(struct se_cmd *cmd)
{
struct iblock_req *ibr;
@@ -844,7 +820,6 @@
.execute_rw = iblock_execute_rw,
.execute_sync_cache = iblock_execute_sync_cache,
.execute_write_same = iblock_execute_write_same,
- .execute_write_same_unmap = iblock_execute_write_same_unmap,
.execute_unmap = iblock_execute_unmap,
};
@@ -863,42 +838,7 @@
return q->flush_flags & REQ_FLUSH;
}
-DEF_TB_DEFAULT_ATTRIBS(iblock);
-
-static struct configfs_attribute *iblock_backend_dev_attrs[] = {
- &iblock_dev_attrib_emulate_model_alias.attr,
- &iblock_dev_attrib_emulate_dpo.attr,
- &iblock_dev_attrib_emulate_fua_write.attr,
- &iblock_dev_attrib_emulate_fua_read.attr,
- &iblock_dev_attrib_emulate_write_cache.attr,
- &iblock_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &iblock_dev_attrib_emulate_tas.attr,
- &iblock_dev_attrib_emulate_tpu.attr,
- &iblock_dev_attrib_emulate_tpws.attr,
- &iblock_dev_attrib_emulate_caw.attr,
- &iblock_dev_attrib_emulate_3pc.attr,
- &iblock_dev_attrib_pi_prot_type.attr,
- &iblock_dev_attrib_hw_pi_prot_type.attr,
- &iblock_dev_attrib_pi_prot_format.attr,
- &iblock_dev_attrib_enforce_pr_isids.attr,
- &iblock_dev_attrib_is_nonrot.attr,
- &iblock_dev_attrib_emulate_rest_reord.attr,
- &iblock_dev_attrib_force_pr_aptpl.attr,
- &iblock_dev_attrib_hw_block_size.attr,
- &iblock_dev_attrib_block_size.attr,
- &iblock_dev_attrib_hw_max_sectors.attr,
- &iblock_dev_attrib_optimal_sectors.attr,
- &iblock_dev_attrib_hw_queue_depth.attr,
- &iblock_dev_attrib_queue_depth.attr,
- &iblock_dev_attrib_max_unmap_lba_count.attr,
- &iblock_dev_attrib_max_unmap_block_desc_count.attr,
- &iblock_dev_attrib_unmap_granularity.attr,
- &iblock_dev_attrib_unmap_granularity_alignment.attr,
- &iblock_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api iblock_template = {
+static const struct target_backend_ops iblock_ops = {
.name = "iblock",
.inquiry_prod = "IBLOCK",
.inquiry_rev = IBLOCK_VERSION,
@@ -918,21 +858,17 @@
.get_io_min = iblock_get_io_min,
.get_io_opt = iblock_get_io_opt,
.get_write_cache = iblock_get_write_cache,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
static int __init iblock_module_init(void)
{
- struct target_backend_cits *tbc = &iblock_template.tb_cits;
-
- target_core_setup_sub_cits(&iblock_template);
- tbc->tb_dev_attrib_cit.ct_attrs = iblock_backend_dev_attrs;
-
- return transport_subsystem_register(&iblock_template);
+ return transport_backend_register(&iblock_ops);
}
static void __exit iblock_module_exit(void)
{
- transport_subsystem_release(&iblock_template);
+ target_backend_unregister(&iblock_ops);
}
MODULE_DESCRIPTION("TCM IBLOCK subsystem plugin");
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 68bd7f5..99c24ac 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -1,6 +1,53 @@
#ifndef TARGET_CORE_INTERNAL_H
#define TARGET_CORE_INTERNAL_H
+#define TARGET_CORE_NAME_MAX_LEN 64
+#define TARGET_FABRIC_NAME_SIZE 32
+
+struct target_backend {
+ struct list_head list;
+
+ const struct target_backend_ops *ops;
+
+ struct config_item_type tb_dev_cit;
+ struct config_item_type tb_dev_attrib_cit;
+ struct config_item_type tb_dev_pr_cit;
+ struct config_item_type tb_dev_wwn_cit;
+ struct config_item_type tb_dev_alua_tg_pt_gps_cit;
+ struct config_item_type tb_dev_stat_cit;
+};
+
+struct target_fabric_configfs {
+ atomic_t tf_access_cnt;
+ struct list_head tf_list;
+ struct config_group tf_group;
+ struct config_group tf_disc_group;
+ struct config_group *tf_default_groups[2];
+ const struct target_core_fabric_ops *tf_ops;
+
+ struct config_item_type tf_discovery_cit;
+ struct config_item_type tf_wwn_cit;
+ struct config_item_type tf_wwn_fabric_stats_cit;
+ struct config_item_type tf_tpg_cit;
+ struct config_item_type tf_tpg_base_cit;
+ struct config_item_type tf_tpg_lun_cit;
+ struct config_item_type tf_tpg_port_cit;
+ struct config_item_type tf_tpg_port_stat_cit;
+ struct config_item_type tf_tpg_np_cit;
+ struct config_item_type tf_tpg_np_base_cit;
+ struct config_item_type tf_tpg_attrib_cit;
+ struct config_item_type tf_tpg_auth_cit;
+ struct config_item_type tf_tpg_param_cit;
+ struct config_item_type tf_tpg_nacl_cit;
+ struct config_item_type tf_tpg_nacl_base_cit;
+ struct config_item_type tf_tpg_nacl_attrib_cit;
+ struct config_item_type tf_tpg_nacl_auth_cit;
+ struct config_item_type tf_tpg_nacl_param_cit;
+ struct config_item_type tf_tpg_nacl_stat_cit;
+ struct config_item_type tf_tpg_mappedlun_cit;
+ struct config_item_type tf_tpg_mappedlun_stat_cit;
+};
+
/* target_core_alua.c */
extern struct t10_alua_lu_gp *default_lu_gp;
@@ -8,28 +55,27 @@
extern struct mutex g_device_mutex;
extern struct list_head g_device_list;
+int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
-int core_free_device_list_for_node(struct se_node_acl *,
+void target_pr_kref_release(struct kref *);
+void core_free_device_list_for_node(struct se_node_acl *,
struct se_portal_group *);
-void core_update_device_list_access(u32, u32, struct se_node_acl *);
+void core_update_device_list_access(u64, u32, struct se_node_acl *);
+struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);
int core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
- u32, u32, struct se_node_acl *, struct se_portal_group *);
-int core_disable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
- u32, u32, struct se_node_acl *, struct se_portal_group *);
+ u64, u32, struct se_node_acl *, struct se_portal_group *);
+void core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
+ struct se_node_acl *, struct se_portal_group *);
void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
-int core_dev_export(struct se_device *, struct se_portal_group *,
- struct se_lun *);
-void core_dev_unexport(struct se_device *, struct se_portal_group *,
- struct se_lun *);
-struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_device *, u32);
+int core_dev_add_lun(struct se_portal_group *, struct se_device *,
+ struct se_lun *lun);
void core_dev_del_lun(struct se_portal_group *, struct se_lun *);
-struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
- struct se_node_acl *, u32, int *);
+ struct se_node_acl *, u64, int *);
int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
- struct se_lun_acl *, u32, u32);
-int core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
- struct se_lun *, struct se_lun_acl *);
+ struct se_lun_acl *, struct se_lun *lun, u32);
+int core_dev_del_initiator_node_lun_acl(struct se_lun *,
+ struct se_lun_acl *);
void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
struct se_lun_acl *lacl);
int core_dev_setup_virtual_lun0(void);
@@ -38,6 +84,18 @@
int target_configure_device(struct se_device *dev);
void target_free_device(struct se_device *);
+/* target_core_configfs.c */
+void target_setup_backend_cits(struct target_backend *);
+
+/* target_core_fabric_lib.c */
+int target_get_pr_transport_id_len(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code);
+int target_get_pr_transport_id(struct se_node_acl *nacl,
+ struct t10_pr_registration *pr_reg, int *format_code,
+ unsigned char *buf);
+const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
+ const char *buf, u32 *out_tid_len, char **port_nexus_ptr);
+
/* target_core_hba.c */
struct se_hba *core_alloc_hba(const char *, u32, u32);
int core_delete_hba(struct se_hba *);
@@ -53,12 +111,16 @@
struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
const char *);
-void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *);
+void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
+ struct se_lun *);
void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
-struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u32);
+struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);
int core_tpg_add_lun(struct se_portal_group *, struct se_lun *,
u32, struct se_device *);
void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);
+struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
+ const char *initiatorname);
+void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
/* target_core_transport.c */
extern struct kmem_cache *se_tmr_req_cache;
@@ -77,14 +139,19 @@
int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
-int transport_clear_lun_ref(struct se_lun *);
+void transport_clear_lun_ref(struct se_lun *);
void transport_send_task_abort(struct se_cmd *);
sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
void target_qf_do_work(struct work_struct *work);
+bool target_check_wce(struct se_device *dev);
+bool target_check_fua(struct se_device *dev);
/* target_core_stat.c */
void target_stat_setup_dev_default_groups(struct se_device *);
void target_stat_setup_port_default_groups(struct se_lun *);
void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
+/* target_core_xcopy.c */
+extern struct se_portal_group xcopy_pt_tpg;
+
#endif /* TARGET_CORE_INTERNAL_H */
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 8e5fa29..0fdbe43 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -35,7 +35,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
@@ -45,7 +44,6 @@
* Used for Specify Initiator Ports Capable Bit (SPEC_I_PT)
*/
struct pr_transport_id_holder {
- int dest_local_nexus;
struct t10_pr_registration *dest_pr_reg;
struct se_portal_group *dest_tpg;
struct se_node_acl *dest_node_acl;
@@ -231,9 +229,10 @@
dev->dev_reservation_flags &= ~DRF_SPC2_RESERVATIONS_WITH_ISID;
}
tpg = sess->se_tpg;
- pr_debug("SCSI-2 Released reservation for %s LUN: %u ->"
- " MAPPED LUN: %u for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun,
+ pr_debug("SCSI-2 Released reservation for %s LUN: %llu ->"
+ " MAPPED LUN: %llu for %s\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ cmd->se_lun->unpacked_lun, cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
out_unlock:
@@ -277,12 +276,12 @@
(dev->dev_reserved_node_acl != sess->se_node_acl)) {
pr_err("SCSI-2 RESERVATION CONFLIFT for %s fabric\n",
tpg->se_tpg_tfo->get_fabric_name());
- pr_err("Original reserver LUN: %u %s\n",
+ pr_err("Original reserver LUN: %llu %s\n",
cmd->se_lun->unpacked_lun,
dev->dev_reserved_node_acl->initiatorname);
- pr_err("Current attempt - LUN: %u -> MAPPED LUN: %u"
+ pr_err("Current attempt - LUN: %llu -> MAPPED LUN: %llu"
" from %s \n", cmd->se_lun->unpacked_lun,
- cmd->se_deve->mapped_lun,
+ cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
ret = TCM_RESERVATION_CONFLICT;
goto out_unlock;
@@ -294,9 +293,9 @@
dev->dev_res_bin_isid = sess->sess_bin_isid;
dev->dev_reservation_flags |= DRF_SPC2_RESERVATIONS_WITH_ISID;
}
- pr_debug("SCSI-2 Reserved %s LUN: %u -> MAPPED LUN: %u"
+ pr_debug("SCSI-2 Reserved %s LUN: %llu -> MAPPED LUN: %llu"
" for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- cmd->se_lun->unpacked_lun, cmd->se_deve->mapped_lun,
+ cmd->se_lun->unpacked_lun, cmd->orig_fe_lun,
sess->se_node_acl->initiatorname);
out_unlock:
@@ -314,28 +313,31 @@
* This function is called by those initiator ports who are *NOT*
* the active PR reservation holder when a reservation is present.
*/
-static int core_scsi3_pr_seq_non_holder(
- struct se_cmd *cmd,
- u32 pr_reg_type)
+static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type,
+ bool isid_mismatch)
{
unsigned char *cdb = cmd->t_task_cdb;
- struct se_dev_entry *se_deve;
struct se_session *se_sess = cmd->se_sess;
- int other_cdb = 0, ignore_reg;
+ struct se_node_acl *nacl = se_sess->se_node_acl;
+ int other_cdb = 0;
int registered_nexus = 0, ret = 1; /* Conflict by default */
int all_reg = 0, reg_only = 0; /* ALL_REG, REG_ONLY */
int we = 0; /* Write Exclusive */
int legacy = 0; /* Act like a legacy device and return
* RESERVATION CONFLICT on some CDBs */
- se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
- /*
- * Determine if the registration should be ignored due to
- * non-matching ISIDs in target_scsi3_pr_reservation_check().
- */
- ignore_reg = (pr_reg_type & 0x80000000);
- if (ignore_reg)
- pr_reg_type &= ~0x80000000;
+ if (isid_mismatch) {
+ registered_nexus = 0;
+ } else {
+ struct se_dev_entry *se_deve;
+
+ rcu_read_lock();
+ se_deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (se_deve)
+ registered_nexus = test_bit(DEF_PR_REG_ACTIVE,
+ &se_deve->deve_flags);
+ rcu_read_unlock();
+ }
switch (pr_reg_type) {
case PR_TYPE_WRITE_EXCLUSIVE:
@@ -345,8 +347,6 @@
* Some commands are only allowed for the persistent reservation
* holder.
*/
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
case PR_TYPE_WRITE_EXCLUSIVE_REGONLY:
we = 1;
@@ -355,8 +355,6 @@
* Some commands are only allowed for registered I_T Nexuses.
*/
reg_only = 1;
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
case PR_TYPE_WRITE_EXCLUSIVE_ALLREG:
we = 1;
@@ -365,8 +363,6 @@
* Each registered I_T Nexus is a reservation holder.
*/
all_reg = 1;
- if ((se_deve->def_pr_registered) && !(ignore_reg))
- registered_nexus = 1;
break;
default:
return -EINVAL;
@@ -572,6 +568,7 @@
struct se_device *dev = cmd->se_dev;
struct se_session *sess = cmd->se_sess;
u32 pr_reg_type;
+ bool isid_mismatch = false;
if (!dev->dev_pr_res_holder)
return 0;
@@ -584,7 +581,7 @@
if (dev->dev_pr_res_holder->isid_present_at_reg) {
if (dev->dev_pr_res_holder->pr_reg_bin_isid !=
sess->sess_bin_isid) {
- pr_reg_type |= 0x80000000;
+ isid_mismatch = true;
goto check_nonholder;
}
}
@@ -592,7 +589,7 @@
return 0;
check_nonholder:
- if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type))
+ if (core_scsi3_pr_seq_non_holder(cmd, pr_reg_type, isid_mismatch))
return TCM_RESERVATION_CONFLICT;
return 0;
}
@@ -620,7 +617,9 @@
static struct t10_pr_registration *__core_scsi3_do_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -642,12 +641,12 @@
atomic_set(&pr_reg->pr_res_holders, 0);
pr_reg->pr_reg_nacl = nacl;
pr_reg->pr_reg_deve = deve;
- pr_reg->pr_res_mapped_lun = deve->mapped_lun;
- pr_reg->pr_aptpl_target_lun = deve->se_lun->unpacked_lun;
+ pr_reg->pr_res_mapped_lun = mapped_lun;
+ pr_reg->pr_aptpl_target_lun = lun->unpacked_lun;
+ pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi;
pr_reg->pr_res_key = sa_res_key;
pr_reg->pr_reg_all_tg_pt = all_tg_pt;
pr_reg->pr_reg_aptpl = aptpl;
- pr_reg->pr_reg_tg_pt_lun = deve->se_lun;
/*
* If an ISID value for this SCSI Initiator Port exists,
* save it to the registration now.
@@ -671,7 +670,9 @@
static struct t10_pr_registration *__core_scsi3_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -679,7 +680,8 @@
{
struct se_dev_entry *deve_tmp;
struct se_node_acl *nacl_tmp;
- struct se_port *port, *port_tmp;
+ struct se_lun_acl *lacl_tmp;
+ struct se_lun *lun_tmp, *next, *dest_lun;
const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
struct t10_pr_registration *pr_reg, *pr_reg_atp, *pr_reg_tmp, *pr_reg_tmp_safe;
int ret;
@@ -687,8 +689,9 @@
* Create a registration for the I_T Nexus upon which the
* PROUT REGISTER was received.
*/
- pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, deve, isid,
- sa_res_key, all_tg_pt, aptpl);
+ pr_reg = __core_scsi3_do_alloc_registration(dev, nacl, lun, deve, mapped_lun,
+ isid, sa_res_key, all_tg_pt,
+ aptpl);
if (!pr_reg)
return NULL;
/*
@@ -701,13 +704,13 @@
* for ALL_TG_PT=1
*/
spin_lock(&dev->se_port_lock);
- list_for_each_entry_safe(port, port_tmp, &dev->dev_sep_list, sep_list) {
- atomic_inc_mb(&port->sep_tg_pt_ref_cnt);
+ list_for_each_entry_safe(lun_tmp, next, &dev->dev_sep_list, lun_dev_link) {
+ if (!percpu_ref_tryget_live(&lun_tmp->lun_ref))
+ continue;
spin_unlock(&dev->se_port_lock);
- spin_lock_bh(&port->sep_alua_lock);
- list_for_each_entry(deve_tmp, &port->sep_alua_list,
- alua_port_list) {
+ spin_lock(&lun_tmp->lun_deve_lock);
+ list_for_each_entry(deve_tmp, &lun_tmp->lun_deve_list, lun_link) {
/*
* This pointer will be NULL for demo mode MappedLUNs
* that have not been make explicit via a ConfigFS
@@ -716,7 +719,9 @@
if (!deve_tmp->se_lun_acl)
continue;
- nacl_tmp = deve_tmp->se_lun_acl->se_lun_nacl;
+ lacl_tmp = rcu_dereference_check(deve_tmp->se_lun_acl,
+ lockdep_is_held(&lun_tmp->lun_deve_lock));
+ nacl_tmp = lacl_tmp->se_lun_nacl;
/*
* Skip the matching struct se_node_acl that is allocated
* above..
@@ -736,8 +741,8 @@
if (strcmp(nacl->initiatorname, nacl_tmp->initiatorname))
continue;
- atomic_inc_mb(&deve_tmp->pr_ref_count);
- spin_unlock_bh(&port->sep_alua_lock);
+ kref_get(&deve_tmp->pr_kref);
+ spin_unlock(&lun_tmp->lun_deve_lock);
/*
* Grab a configfs group dependency that is released
* for the exception path at label out: below, or upon
@@ -748,8 +753,8 @@
if (ret < 0) {
pr_err("core_scsi3_lunacl_depend"
"_item() failed\n");
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
- atomic_dec_mb(&deve_tmp->pr_ref_count);
+ percpu_ref_put(&lun_tmp->lun_ref);
+ kref_put(&deve_tmp->pr_kref, target_pr_kref_release);
goto out;
}
/*
@@ -759,24 +764,27 @@
* the original *pr_reg is processed in
* __core_scsi3_add_registration()
*/
+ dest_lun = rcu_dereference_check(deve_tmp->se_lun,
+ atomic_read(&deve_tmp->pr_kref.refcount) != 0);
+
pr_reg_atp = __core_scsi3_do_alloc_registration(dev,
- nacl_tmp, deve_tmp, NULL,
+ nacl_tmp, dest_lun, deve_tmp,
+ deve_tmp->mapped_lun, NULL,
sa_res_key, all_tg_pt, aptpl);
if (!pr_reg_atp) {
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
- atomic_dec_mb(&deve_tmp->pr_ref_count);
+ percpu_ref_put(&lun_tmp->lun_ref);
core_scsi3_lunacl_undepend_item(deve_tmp);
goto out;
}
list_add_tail(&pr_reg_atp->pr_reg_atp_mem_list,
&pr_reg->pr_reg_atp_list);
- spin_lock_bh(&port->sep_alua_lock);
+ spin_lock(&lun_tmp->lun_deve_lock);
}
- spin_unlock_bh(&port->sep_alua_lock);
+ spin_unlock(&lun_tmp->lun_deve_lock);
spin_lock(&dev->se_port_lock);
- atomic_dec_mb(&port->sep_tg_pt_ref_cnt);
+ percpu_ref_put(&lun_tmp->lun_ref);
}
spin_unlock(&dev->se_port_lock);
@@ -797,10 +805,10 @@
u64 sa_res_key,
unsigned char *i_port,
unsigned char *isid,
- u32 mapped_lun,
+ u64 mapped_lun,
unsigned char *t_port,
u16 tpgt,
- u32 target_lun,
+ u64 target_lun,
int res_holder,
int all_tg_pt,
u8 type)
@@ -831,7 +839,6 @@
pr_reg->pr_res_key = sa_res_key;
pr_reg->pr_reg_all_tg_pt = all_tg_pt;
pr_reg->pr_reg_aptpl = 1;
- pr_reg->pr_reg_tg_pt_lun = NULL;
pr_reg->pr_res_scope = 0; /* Always LUN_SCOPE */
pr_reg->pr_res_type = type;
/*
@@ -895,9 +902,9 @@
struct se_device *dev,
struct se_portal_group *tpg,
struct se_lun *lun,
- u32 target_lun,
+ u64 target_lun,
struct se_node_acl *nacl,
- struct se_dev_entry *deve)
+ u64 mapped_lun)
{
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
@@ -925,14 +932,13 @@
pr_reg_aptpl_list) {
if (!strcmp(pr_reg->pr_iport, i_port) &&
- (pr_reg->pr_res_mapped_lun == deve->mapped_lun) &&
+ (pr_reg->pr_res_mapped_lun == mapped_lun) &&
!(strcmp(pr_reg->pr_tport, t_port)) &&
(pr_reg->pr_reg_tpgt == tpgt) &&
(pr_reg->pr_aptpl_target_lun == target_lun)) {
pr_reg->pr_reg_nacl = nacl;
- pr_reg->pr_reg_deve = deve;
- pr_reg->pr_reg_tg_pt_lun = lun;
+ pr_reg->tg_pt_sep_rtpi = lun->lun_rtpi;
list_del(&pr_reg->pr_reg_aptpl_list);
spin_unlock(&pr_tmpl->aptpl_reg_lock);
@@ -967,15 +973,14 @@
struct se_portal_group *tpg,
struct se_lun *lun,
struct se_node_acl *nacl,
- u32 mapped_lun)
+ u64 mapped_lun)
{
- struct se_dev_entry *deve = nacl->device_list[mapped_lun];
-
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return 0;
return __core_scsi3_check_aptpl_registration(dev, tpg, lun,
- lun->unpacked_lun, nacl, deve);
+ lun->unpacked_lun, nacl,
+ mapped_lun);
}
static void __core_scsi3_dump_registration(
@@ -1009,10 +1014,6 @@
pr_reg->pr_reg_aptpl);
}
-/*
- * this function can be called with struct se_device->dev_reservation_lock
- * when register_move = 1
- */
static void __core_scsi3_add_registration(
struct se_device *dev,
struct se_node_acl *nacl,
@@ -1023,6 +1024,7 @@
const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo;
struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
+ struct se_dev_entry *deve;
/*
* Increment PRgeneration counter for struct se_device upon a successful
@@ -1039,10 +1041,16 @@
spin_lock(&pr_tmpl->registration_lock);
list_add_tail(&pr_reg->pr_reg_list, &pr_tmpl->registration_list);
- pr_reg->pr_reg_deve->def_pr_registered = 1;
__core_scsi3_dump_registration(tfo, dev, nacl, pr_reg, register_type);
spin_unlock(&pr_tmpl->registration_lock);
+
+ rcu_read_lock();
+ deve = pr_reg->pr_reg_deve;
+ if (deve)
+ set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
/*
* Skip extra processing for ALL_TG_PT=0 or REGISTER_AND_MOVE.
*/
@@ -1054,6 +1062,8 @@
*/
list_for_each_entry_safe(pr_reg_tmp, pr_reg_tmp_safe,
&pr_reg->pr_reg_atp_list, pr_reg_atp_mem_list) {
+ struct se_node_acl *nacl_tmp = pr_reg_tmp->pr_reg_nacl;
+
list_del(&pr_reg_tmp->pr_reg_atp_mem_list);
pr_reg_tmp->pr_res_generation = core_scsi3_pr_generation(dev);
@@ -1061,12 +1071,17 @@
spin_lock(&pr_tmpl->registration_lock);
list_add_tail(&pr_reg_tmp->pr_reg_list,
&pr_tmpl->registration_list);
- pr_reg_tmp->pr_reg_deve->def_pr_registered = 1;
- __core_scsi3_dump_registration(tfo, dev,
- pr_reg_tmp->pr_reg_nacl, pr_reg_tmp,
- register_type);
+ __core_scsi3_dump_registration(tfo, dev, nacl_tmp, pr_reg_tmp,
+ register_type);
spin_unlock(&pr_tmpl->registration_lock);
+
+ rcu_read_lock();
+ deve = pr_reg_tmp->pr_reg_deve;
+ if (deve)
+ set_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
/*
* Drop configfs group dependency reference from
* __core_scsi3_alloc_registration()
@@ -1078,7 +1093,9 @@
static int core_scsi3_alloc_registration(
struct se_device *dev,
struct se_node_acl *nacl,
+ struct se_lun *lun,
struct se_dev_entry *deve,
+ u64 mapped_lun,
unsigned char *isid,
u64 sa_res_key,
int all_tg_pt,
@@ -1088,8 +1105,9 @@
{
struct t10_pr_registration *pr_reg;
- pr_reg = __core_scsi3_alloc_registration(dev, nacl, deve, isid,
- sa_res_key, all_tg_pt, aptpl);
+ pr_reg = __core_scsi3_alloc_registration(dev, nacl, lun, deve, mapped_lun,
+ isid, sa_res_key, all_tg_pt,
+ aptpl);
if (!pr_reg)
return -EPERM;
@@ -1242,13 +1260,13 @@
const struct target_core_fabric_ops *tfo =
pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
+ struct se_node_acl *nacl = pr_reg->pr_reg_nacl;
+ struct se_dev_entry *deve;
char i_buf[PR_REG_ISID_ID_LEN];
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
- pr_reg->pr_reg_deve->def_pr_registered = 0;
- pr_reg->pr_reg_deve->pr_res_key = 0;
if (!list_empty(&pr_reg->pr_reg_list))
list_del(&pr_reg->pr_reg_list);
/*
@@ -1257,6 +1275,8 @@
*/
if (dec_holders)
core_scsi3_put_pr_reg(pr_reg);
+
+ spin_unlock(&pr_tmpl->registration_lock);
/*
* Wait until all reference from any other I_T nexuses for this
* *pr_reg have been released. Because list_del() is called above,
@@ -1264,13 +1284,18 @@
* count back to zero, and we release *pr_reg.
*/
while (atomic_read(&pr_reg->pr_res_holders) != 0) {
- spin_unlock(&pr_tmpl->registration_lock);
pr_debug("SPC-3 PR [%s] waiting for pr_res_holders\n",
tfo->get_fabric_name());
cpu_relax();
- spin_lock(&pr_tmpl->registration_lock);
}
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, pr_reg->pr_res_mapped_lun);
+ if (deve)
+ clear_bit(DEF_PR_REG_ACTIVE, &deve->deve_flags);
+ rcu_read_unlock();
+
+ spin_lock(&pr_tmpl->registration_lock);
pr_debug("SPC-3 PR [%s] Service Action: UNREGISTER Initiator"
" Node: %s%s\n", tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname,
@@ -1392,12 +1417,14 @@
static int core_scsi3_lunacl_depend_item(struct se_dev_entry *se_deve)
{
- struct se_lun_acl *lun_acl = se_deve->se_lun_acl;
+ struct se_lun_acl *lun_acl;
struct se_node_acl *nacl;
struct se_portal_group *tpg;
/*
* For nacl->dynamic_node_acl=1
*/
+ lun_acl = rcu_dereference_check(se_deve->se_lun_acl,
+ atomic_read(&se_deve->pr_kref.refcount) != 0);
if (!lun_acl)
return 0;
@@ -1409,21 +1436,23 @@
static void core_scsi3_lunacl_undepend_item(struct se_dev_entry *se_deve)
{
- struct se_lun_acl *lun_acl = se_deve->se_lun_acl;
+ struct se_lun_acl *lun_acl;
struct se_node_acl *nacl;
struct se_portal_group *tpg;
/*
* For nacl->dynamic_node_acl=1
*/
+ lun_acl = rcu_dereference_check(se_deve->se_lun_acl,
+ atomic_read(&se_deve->pr_kref.refcount) != 0);
if (!lun_acl) {
- atomic_dec_mb(&se_deve->pr_ref_count);
+ kref_put(&se_deve->pr_kref, target_pr_kref_release);
return;
}
nacl = lun_acl->se_lun_nacl;
tpg = nacl->se_tpg;
target_undepend_item(&lun_acl->se_lun_group.cg_item);
- atomic_dec_mb(&se_deve->pr_ref_count);
+ kref_put(&se_deve->pr_kref, target_pr_kref_release);
}
static sense_reason_t
@@ -1436,30 +1465,25 @@
int aptpl)
{
struct se_device *dev = cmd->se_dev;
- struct se_port *tmp_port;
struct se_portal_group *dest_tpg = NULL, *tmp_tpg;
struct se_session *se_sess = cmd->se_sess;
struct se_node_acl *dest_node_acl = NULL;
- struct se_dev_entry *dest_se_deve = NULL, *local_se_deve;
+ struct se_dev_entry *dest_se_deve = NULL;
struct t10_pr_registration *dest_pr_reg, *local_pr_reg, *pr_reg_e;
struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe;
LIST_HEAD(tid_dest_list);
struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp;
- const struct target_core_fabric_ops *tmp_tf_ops;
- unsigned char *buf;
- unsigned char *ptr, *i_str = NULL, proto_ident, tmp_proto_ident;
+ unsigned char *buf, *ptr, proto_ident;
+ const unsigned char *i_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
sense_reason_t ret;
u32 tpdl, tid_len = 0;
- int dest_local_nexus;
u32 dest_rtpi = 0;
- local_se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
/*
* Allocate a struct pr_transport_id_holder and setup the
- * local_node_acl and local_se_deve pointers and add to
- * struct list_head tid_dest_list for add registration
- * processing in the loop of tid_dest_list below.
+ * local_node_acl pointer and add to struct list_head tid_dest_list
+ * for add registration processing in the loop of tid_dest_list below.
*/
tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL);
if (!tidh_new) {
@@ -1469,10 +1493,10 @@
INIT_LIST_HEAD(&tidh_new->dest_list);
tidh_new->dest_tpg = tpg;
tidh_new->dest_node_acl = se_sess->se_node_acl;
- tidh_new->dest_se_deve = local_se_deve;
local_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
- se_sess->se_node_acl, local_se_deve, l_isid,
+ se_sess->se_node_acl, cmd->se_lun,
+ NULL, cmd->orig_fe_lun, l_isid,
sa_res_key, all_tg_pt, aptpl);
if (!local_pr_reg) {
kfree(tidh_new);
@@ -1481,10 +1505,10 @@
tidh_new->dest_pr_reg = local_pr_reg;
/*
* The local I_T nexus does not hold any configfs dependances,
- * so we set tid_h->dest_local_nexus=1 to prevent the
+ * so we set tidh_new->dest_se_deve to NULL to prevent the
* configfs_undepend_item() calls in the tid_dest_list loops below.
*/
- tidh_new->dest_local_nexus = 1;
+ tidh_new->dest_se_deve = NULL;
list_add_tail(&tidh_new->dest_list, &tid_dest_list);
if (cmd->data_length < 28) {
@@ -1525,32 +1549,25 @@
ptr = &buf[28];
while (tpdl > 0) {
+ struct se_lun *dest_lun, *tmp_lun;
+
proto_ident = (ptr[0] & 0x0f);
dest_tpg = NULL;
spin_lock(&dev->se_port_lock);
- list_for_each_entry(tmp_port, &dev->dev_sep_list, sep_list) {
- tmp_tpg = tmp_port->sep_tpg;
- if (!tmp_tpg)
- continue;
- tmp_tf_ops = tmp_tpg->se_tpg_tfo;
- if (!tmp_tf_ops)
- continue;
- if (!tmp_tf_ops->get_fabric_proto_ident ||
- !tmp_tf_ops->tpg_parse_pr_out_transport_id)
- continue;
+ list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) {
+ tmp_tpg = tmp_lun->lun_tpg;
+
/*
* Look for the matching proto_ident provided by
* the received TransportID
*/
- tmp_proto_ident = tmp_tf_ops->get_fabric_proto_ident(tmp_tpg);
- if (tmp_proto_ident != proto_ident)
+ if (tmp_tpg->proto_id != proto_ident)
continue;
- dest_rtpi = tmp_port->sep_rtpi;
+ dest_rtpi = tmp_lun->lun_rtpi;
- i_str = tmp_tf_ops->tpg_parse_pr_out_transport_id(
- tmp_tpg, (const char *)ptr, &tid_len,
- &iport_ptr);
+ i_str = target_parse_pr_out_transport_id(tmp_tpg,
+ (const char *)ptr, &tid_len, &iport_ptr);
if (!i_str)
continue;
@@ -1569,12 +1586,12 @@
* from the decoded fabric module specific TransportID
* at *i_str.
*/
- spin_lock_irq(&tmp_tpg->acl_node_lock);
+ mutex_lock(&tmp_tpg->acl_node_mutex);
dest_node_acl = __core_tpg_get_initiator_node_acl(
tmp_tpg, i_str);
if (dest_node_acl)
atomic_inc_mb(&dest_node_acl->acl_pr_ref_count);
- spin_unlock_irq(&tmp_tpg->acl_node_lock);
+ mutex_unlock(&tmp_tpg->acl_node_mutex);
if (!dest_node_acl) {
core_scsi3_tpg_undepend_item(tmp_tpg);
@@ -1644,7 +1661,7 @@
if (core_scsi3_lunacl_depend_item(dest_se_deve)) {
pr_err("core_scsi3_lunacl_depend_item()"
" failed\n");
- atomic_dec_mb(&dest_se_deve->pr_ref_count);
+ kref_put(&dest_se_deve->pr_kref, target_pr_kref_release);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -1652,7 +1669,7 @@
}
pr_debug("SPC-3 PR SPEC_I_PT: Located %s Node: %s"
- " dest_se_deve mapped_lun: %u\n",
+ " dest_se_deve mapped_lun: %llu\n",
dest_tpg->se_tpg_tfo->get_fabric_name(),
dest_node_acl->initiatorname, dest_se_deve->mapped_lun);
@@ -1708,9 +1725,13 @@
* and then call __core_scsi3_add_registration() in the
* 2nd loop which will never fail.
*/
+ dest_lun = rcu_dereference_check(dest_se_deve->se_lun,
+ atomic_read(&dest_se_deve->pr_kref.refcount) != 0);
+
dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev,
- dest_node_acl, dest_se_deve, iport_ptr,
- sa_res_key, all_tg_pt, aptpl);
+ dest_node_acl, dest_lun, dest_se_deve,
+ dest_se_deve->mapped_lun, iport_ptr,
+ sa_res_key, all_tg_pt, aptpl);
if (!dest_pr_reg) {
core_scsi3_lunacl_undepend_item(dest_se_deve);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
@@ -1748,7 +1769,6 @@
dest_node_acl = tidh->dest_node_acl;
dest_se_deve = tidh->dest_se_deve;
dest_pr_reg = tidh->dest_pr_reg;
- dest_local_nexus = tidh->dest_local_nexus;
list_del(&tidh->dest_list);
kfree(tidh);
@@ -1761,10 +1781,11 @@
pr_debug("SPC-3 PR [%s] SPEC_I_PT: Successfully"
" registered Transport ID for Node: %s%s Mapped LUN:"
- " %u\n", dest_tpg->se_tpg_tfo->get_fabric_name(),
- dest_node_acl->initiatorname, i_buf, dest_se_deve->mapped_lun);
+ " %llu\n", dest_tpg->se_tpg_tfo->get_fabric_name(),
+ dest_node_acl->initiatorname, i_buf, (dest_se_deve) ?
+ dest_se_deve->mapped_lun : 0);
- if (dest_local_nexus)
+ if (!dest_se_deve)
continue;
core_scsi3_lunacl_undepend_item(dest_se_deve);
@@ -1785,7 +1806,6 @@
dest_node_acl = tidh->dest_node_acl;
dest_se_deve = tidh->dest_se_deve;
dest_pr_reg = tidh->dest_pr_reg;
- dest_local_nexus = tidh->dest_local_nexus;
list_del(&tidh->dest_list);
kfree(tidh);
@@ -1803,7 +1823,7 @@
kmem_cache_free(t10_pr_reg_cache, dest_pr_reg);
- if (dest_local_nexus)
+ if (!dest_se_deve)
continue;
core_scsi3_lunacl_undepend_item(dest_se_deve);
@@ -1818,7 +1838,6 @@
unsigned char *buf,
u32 pr_aptpl_buf_len)
{
- struct se_lun *lun;
struct se_portal_group *tpg;
struct t10_pr_registration *pr_reg;
unsigned char tmp[512], isid_buf[32];
@@ -1837,7 +1856,6 @@
tmp[0] = '\0';
isid_buf[0] = '\0';
tpg = pr_reg->pr_reg_nacl->se_tpg;
- lun = pr_reg->pr_reg_tg_pt_lun;
/*
* Write out any ISID value to APTPL metadata that was included
* in the original registration.
@@ -1856,7 +1874,7 @@
"sa_res_key=%llu\n"
"res_holder=1\nres_type=%02x\n"
"res_scope=%02x\nres_all_tg_pt=%d\n"
- "mapped_lun=%u\n", reg_count,
+ "mapped_lun=%llu\n", reg_count,
tpg->se_tpg_tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname, isid_buf,
pr_reg->pr_res_key, pr_reg->pr_res_type,
@@ -1866,7 +1884,7 @@
snprintf(tmp, 512, "PR_REG_START: %d\n"
"initiator_fabric=%s\ninitiator_node=%s\n%s"
"sa_res_key=%llu\nres_holder=0\n"
- "res_all_tg_pt=%d\nmapped_lun=%u\n",
+ "res_all_tg_pt=%d\nmapped_lun=%llu\n",
reg_count, tpg->se_tpg_tfo->get_fabric_name(),
pr_reg->pr_reg_nacl->initiatorname, isid_buf,
pr_reg->pr_res_key, pr_reg->pr_reg_all_tg_pt,
@@ -1885,11 +1903,12 @@
* Include information about the associated SCSI target port.
*/
snprintf(tmp, 512, "target_fabric=%s\ntarget_node=%s\n"
- "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%u\nPR_REG_END:"
+ "tpgt=%hu\nport_rtpi=%hu\ntarget_lun=%llu\nPR_REG_END:"
" %d\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_wwn(tpg),
tpg->se_tpg_tfo->tpg_get_tag(tpg),
- lun->lun_sep->sep_rtpi, lun->unpacked_lun, reg_count);
+ pr_reg->tg_pt_sep_rtpi, pr_reg->pr_aptpl_target_lun,
+ reg_count);
if ((len + strlen(tmp) >= pr_aptpl_buf_len)) {
pr_err("Unable to update renaming APTPL metadata,"
@@ -2000,7 +2019,6 @@
{
struct se_session *se_sess = cmd->se_sess;
struct se_device *dev = cmd->se_dev;
- struct se_dev_entry *se_deve;
struct se_lun *se_lun = cmd->se_lun;
struct se_portal_group *se_tpg;
struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp;
@@ -2014,7 +2032,6 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
se_tpg = se_sess->se_tpg;
- se_deve = se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
if (se_tpg->se_tpg_tfo->sess_get_initiator_sid) {
memset(&isid_buf[0], 0, PR_REG_ISID_LEN);
@@ -2045,7 +2062,8 @@
* Logical Unit of the SCSI device server.
*/
if (core_scsi3_alloc_registration(cmd->se_dev,
- se_sess->se_node_acl, se_deve, isid_ptr,
+ se_sess->se_node_acl, cmd->se_lun,
+ NULL, cmd->orig_fe_lun, isid_ptr,
sa_res_key, all_tg_pt, aptpl,
register_type, 0)) {
pr_err("Unable to allocate"
@@ -2066,7 +2084,6 @@
if (ret != 0)
return ret;
}
-
return core_scsi3_update_and_write_aptpl(dev, aptpl);
}
@@ -2180,7 +2197,7 @@
&pr_tmpl->registration_list,
pr_reg_list) {
- core_scsi3_ua_allocate(
+ target_ua_allocate_lun(
pr_reg_p->pr_reg_nacl,
pr_reg_p->pr_res_mapped_lun,
0x2A,
@@ -2607,7 +2624,7 @@
if (pr_reg_p == pr_reg)
continue;
- core_scsi3_ua_allocate(pr_reg_p->pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg_p->pr_reg_nacl,
pr_reg_p->pr_res_mapped_lun,
0x2A, ASCQ_2AH_RESERVATIONS_RELEASED);
}
@@ -2630,7 +2647,7 @@
struct se_session *se_sess = cmd->se_sess;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder;
- u32 pr_res_mapped_lun = 0;
+ u64 pr_res_mapped_lun = 0;
int calling_it_nexus = 0;
/*
* Locate the existing *pr_reg via struct se_node_acl pointers
@@ -2692,7 +2709,7 @@
* additional sense code set to RESERVATIONS PREEMPTED.
*/
if (!calling_it_nexus)
- core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun,
+ target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun,
0x2A, ASCQ_2AH_RESERVATIONS_PREEMPTED);
}
spin_unlock(&pr_tmpl->registration_lock);
@@ -2786,7 +2803,7 @@
LIST_HEAD(preempt_and_abort_list);
struct t10_pr_registration *pr_reg, *pr_reg_tmp, *pr_reg_n, *pr_res_holder;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
- u32 pr_res_mapped_lun = 0;
+ u64 pr_res_mapped_lun = 0;
int all_reg = 0, calling_it_nexus = 0;
bool sa_res_key_unmatched = sa_res_key != 0;
int prh_type = 0, prh_scope = 0;
@@ -2901,7 +2918,7 @@
NULL, 0);
}
if (!calling_it_nexus)
- core_scsi3_ua_allocate(pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg_nacl,
pr_res_mapped_lun, 0x2A,
ASCQ_2AH_REGISTRATIONS_PREEMPTED);
}
@@ -3007,7 +3024,7 @@
* persistent reservation and/or registration, with the
* additional sense code set to REGISTRATIONS PREEMPTED;
*/
- core_scsi3_ua_allocate(pr_reg_nacl, pr_res_mapped_lun, 0x2A,
+ target_ua_allocate_lun(pr_reg_nacl, pr_res_mapped_lun, 0x2A,
ASCQ_2AH_REGISTRATIONS_PREEMPTED);
}
spin_unlock(&pr_tmpl->registration_lock);
@@ -3040,7 +3057,7 @@
if (calling_it_nexus)
continue;
- core_scsi3_ua_allocate(pr_reg->pr_reg_nacl,
+ target_ua_allocate_lun(pr_reg->pr_reg_nacl,
pr_reg->pr_res_mapped_lun, 0x2A,
ASCQ_2AH_RESERVATIONS_RELEASED);
}
@@ -3099,15 +3116,14 @@
struct se_session *se_sess = cmd->se_sess;
struct se_device *dev = cmd->se_dev;
struct se_dev_entry *dest_se_deve = NULL;
- struct se_lun *se_lun = cmd->se_lun;
+ struct se_lun *se_lun = cmd->se_lun, *tmp_lun;
struct se_node_acl *pr_res_nacl, *pr_reg_nacl, *dest_node_acl = NULL;
- struct se_port *se_port;
struct se_portal_group *se_tpg, *dest_se_tpg = NULL;
const struct target_core_fabric_ops *dest_tf_ops = NULL, *tf_ops;
struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
- unsigned char *initiator_str;
+ const unsigned char *initiator_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
u32 tid_len, tmp_tid_len;
int new_reg = 0, type, scope, matching_iname;
@@ -3186,12 +3202,10 @@
}
spin_lock(&dev->se_port_lock);
- list_for_each_entry(se_port, &dev->dev_sep_list, sep_list) {
- if (se_port->sep_rtpi != rtpi)
+ list_for_each_entry(tmp_lun, &dev->dev_sep_list, lun_dev_link) {
+ if (tmp_lun->lun_rtpi != rtpi)
continue;
- dest_se_tpg = se_port->sep_tpg;
- if (!dest_se_tpg)
- continue;
+ dest_se_tpg = tmp_lun->lun_tpg;
dest_tf_ops = dest_se_tpg->se_tpg_tfo;
if (!dest_tf_ops)
continue;
@@ -3230,23 +3244,16 @@
pr_debug("SPC-3 PR REGISTER_AND_MOVE: Extracted Protocol Identifier:"
" 0x%02x\n", proto_ident);
- if (proto_ident != dest_tf_ops->get_fabric_proto_ident(dest_se_tpg)) {
+ if (proto_ident != dest_se_tpg->proto_id) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Received"
" proto_ident: 0x%02x does not match ident: 0x%02x"
" from fabric: %s\n", proto_ident,
- dest_tf_ops->get_fabric_proto_ident(dest_se_tpg),
+ dest_se_tpg->proto_id,
dest_tf_ops->get_fabric_name());
ret = TCM_INVALID_PARAMETER_LIST;
goto out;
}
- if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) {
- pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not"
- " containg a valid tpg_parse_pr_out_transport_id"
- " function pointer\n");
- ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- goto out;
- }
- initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg,
+ initiator_str = target_parse_pr_out_transport_id(dest_se_tpg,
(const char *)&buf[24], &tmp_tid_len, &iport_ptr);
if (!initiator_str) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate"
@@ -3295,12 +3302,12 @@
/*
* Locate the destination struct se_node_acl from the received Transport ID
*/
- spin_lock_irq(&dest_se_tpg->acl_node_lock);
+ mutex_lock(&dest_se_tpg->acl_node_mutex);
dest_node_acl = __core_tpg_get_initiator_node_acl(dest_se_tpg,
initiator_str);
if (dest_node_acl)
atomic_inc_mb(&dest_node_acl->acl_pr_ref_count);
- spin_unlock_irq(&dest_se_tpg->acl_node_lock);
+ mutex_unlock(&dest_se_tpg->acl_node_mutex);
if (!dest_node_acl) {
pr_err("Unable to locate %s dest_node_acl for"
@@ -3337,14 +3344,14 @@
if (core_scsi3_lunacl_depend_item(dest_se_deve)) {
pr_err("core_scsi3_lunacl_depend_item() failed\n");
- atomic_dec_mb(&dest_se_deve->pr_ref_count);
+ kref_put(&dest_se_deve->pr_kref, target_pr_kref_release);
dest_se_deve = NULL;
ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
goto out;
}
pr_debug("SPC-3 PR REGISTER_AND_MOVE: Located %s node %s LUN"
- " ACL for dest_se_deve->mapped_lun: %u\n",
+ " ACL for dest_se_deve->mapped_lun: %llu\n",
dest_tf_ops->get_fabric_name(), dest_node_acl->initiatorname,
dest_se_deve->mapped_lun);
@@ -3421,13 +3428,17 @@
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
iport_ptr);
if (!dest_pr_reg) {
- if (core_scsi3_alloc_registration(cmd->se_dev,
- dest_node_acl, dest_se_deve, iport_ptr,
- sa_res_key, 0, aptpl, 2, 1)) {
- spin_unlock(&dev->dev_reservation_lock);
+ struct se_lun *dest_lun = rcu_dereference_check(dest_se_deve->se_lun,
+ atomic_read(&dest_se_deve->pr_kref.refcount) != 0);
+
+ spin_unlock(&dev->dev_reservation_lock);
+ if (core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl,
+ dest_lun, dest_se_deve, dest_se_deve->mapped_lun,
+ iport_ptr, sa_res_key, 0, aptpl, 2, 1)) {
ret = TCM_INVALID_PARAMETER_LIST;
goto out;
}
+ spin_lock(&dev->dev_reservation_lock);
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
iport_ptr);
new_reg = 1;
@@ -3883,9 +3894,10 @@
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
- u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len;
+ u32 add_desc_len = 0, add_len = 0;
u32 off = 8; /* off into first Full Status descriptor */
int format_code = 0, pr_res_type = 0, pr_res_scope = 0;
+ int exp_desc_len, desc_len;
bool all_reg = false;
if (cmd->data_length < 8) {
@@ -3930,10 +3942,10 @@
* Determine expected length of $FABRIC_MOD specific
* TransportID full status descriptor..
*/
- exp_desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id_len(
- se_tpg, se_nacl, pr_reg, &format_code);
-
- if ((exp_desc_len + add_len) > cmd->data_length) {
+ exp_desc_len = target_get_pr_transport_id_len(se_nacl, pr_reg,
+ &format_code);
+ if (exp_desc_len < 0 ||
+ exp_desc_len + add_len > cmd->data_length) {
pr_warn("SPC-3 PRIN READ_FULL_STATUS ran"
" out of buffer: %d\n", cmd->data_length);
spin_lock(&pr_tmpl->registration_lock);
@@ -3990,21 +4002,26 @@
* IDENTIFIER field are not defined by this standard.
*/
if (!pr_reg->pr_reg_all_tg_pt) {
- struct se_port *port = pr_reg->pr_reg_tg_pt_lun->lun_sep;
+ u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi;
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((sep_rtpi >> 8) & 0xff);
+ buf[off++] = (sep_rtpi & 0xff);
} else
off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
+ buf[off+4] = se_tpg->proto_id;
+
/*
- * Now, have the $FABRIC_MOD fill in the protocol identifier
+ * Now, have the $FABRIC_MOD fill in the transport ID.
*/
- desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id(se_tpg,
- se_nacl, pr_reg, &format_code, &buf[off+4]);
+ desc_len = target_get_pr_transport_id(se_nacl, pr_reg,
+ &format_code, &buf[off+4]);
spin_lock(&pr_tmpl->registration_lock);
atomic_dec_mb(&pr_reg->pr_res_holders);
+
+ if (desc_len < 0)
+ break;
/*
* Set the ADDITIONAL DESCRIPTOR LENGTH
*/
diff --git a/drivers/target/target_core_pr.h b/drivers/target/target_core_pr.h
index 749fd7b..e3d26e9 100644
--- a/drivers/target/target_core_pr.h
+++ b/drivers/target/target_core_pr.h
@@ -56,11 +56,11 @@
extern sense_reason_t target_scsi2_reservation_reserve(struct se_cmd *);
extern int core_scsi3_alloc_aptpl_registration(
struct t10_reservation *, u64,
- unsigned char *, unsigned char *, u32,
- unsigned char *, u16, u32, int, int, u8);
+ unsigned char *, unsigned char *, u64,
+ unsigned char *, u16, u64, int, int, u8);
extern int core_scsi3_check_aptpl_registration(struct se_device *,
struct se_portal_group *, struct se_lun *,
- struct se_node_acl *, u32);
+ struct se_node_acl *, u64);
extern void core_scsi3_free_pr_reg_from_nacl(struct se_device *,
struct se_node_acl *);
extern void core_scsi3_free_all_registrations(struct se_device *);
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 26581e2..08e9084 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -42,9 +42,9 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_alua.h"
+#include "target_core_internal.h"
#include "target_core_pscsi.h"
#define ISPRINT(a) ((a >= ' ') && (a <= '~'))
@@ -54,8 +54,6 @@
return container_of(dev, struct pscsi_dev_virt, dev);
}
-static struct se_subsystem_api pscsi_template;
-
static sense_reason_t pscsi_execute_cmd(struct se_cmd *cmd);
static void pscsi_req_done(struct request *, int);
@@ -80,7 +78,7 @@
pr_debug("CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- PSCSI_VERSION, TARGET_CORE_MOD_VERSION);
+ PSCSI_VERSION, TARGET_CORE_VERSION);
pr_debug("CORE_HBA[%d] - Attached SCSI HBA to Generic\n",
hba->hba_id);
@@ -579,6 +577,14 @@
return -ENODEV;
}
+static void pscsi_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
+
+ kfree(pdv);
+}
+
static void pscsi_free_device(struct se_device *dev)
{
struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
@@ -610,8 +616,7 @@
pdv->pdv_sd = NULL;
}
-
- kfree(pdv);
+ call_rcu(&dev->rcu_head, pscsi_dev_call_rcu);
}
static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
@@ -635,12 +640,14 @@
* Hack to make sure that Write-Protect modepage is set if R/O mode is
* forced.
*/
- if (!cmd->se_deve || !cmd->data_length)
+ if (!cmd->data_length)
goto after_mode_sense;
if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
(status_byte(result) << 1) == SAM_STAT_GOOD) {
- if (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) {
+ bool read_only = target_lun_is_rdonly(cmd);
+
+ if (read_only) {
unsigned char *buf;
buf = transport_kmap_data_sg(cmd);
@@ -1116,27 +1123,7 @@
kfree(pt);
}
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_pi_prot_type);
-TB_DEV_ATTR_RO(pscsi, hw_pi_prot_type);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_block_size);
-TB_DEV_ATTR_RO(pscsi, hw_block_size);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_max_sectors);
-TB_DEV_ATTR_RO(pscsi, hw_max_sectors);
-
-DEF_TB_DEV_ATTRIB_RO(pscsi, hw_queue_depth);
-TB_DEV_ATTR_RO(pscsi, hw_queue_depth);
-
-static struct configfs_attribute *pscsi_backend_dev_attrs[] = {
- &pscsi_dev_attrib_hw_pi_prot_type.attr,
- &pscsi_dev_attrib_hw_block_size.attr,
- &pscsi_dev_attrib_hw_max_sectors.attr,
- &pscsi_dev_attrib_hw_queue_depth.attr,
- NULL,
-};
-
-static struct se_subsystem_api pscsi_template = {
+static const struct target_backend_ops pscsi_ops = {
.name = "pscsi",
.owner = THIS_MODULE,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH,
@@ -1152,21 +1139,17 @@
.show_configfs_dev_params = pscsi_show_configfs_dev_params,
.get_device_type = pscsi_get_device_type,
.get_blocks = pscsi_get_blocks,
+ .tb_dev_attrib_attrs = passthrough_attrib_attrs,
};
static int __init pscsi_module_init(void)
{
- struct target_backend_cits *tbc = &pscsi_template.tb_cits;
-
- target_core_setup_sub_cits(&pscsi_template);
- tbc->tb_dev_attrib_cit.ct_attrs = pscsi_backend_dev_attrs;
-
- return transport_subsystem_register(&pscsi_template);
+ return transport_backend_register(&pscsi_ops);
}
static void __exit pscsi_module_exit(void)
{
- transport_subsystem_release(&pscsi_template);
+ target_backend_unregister(&pscsi_ops);
}
MODULE_DESCRIPTION("TCM PSCSI subsystem plugin");
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index b2d8f6f..4703f40 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -33,7 +33,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include "target_core_rd.h"
@@ -42,10 +41,6 @@
return container_of(dev, struct rd_dev, dev);
}
-/* rd_attach_hba(): (Part of se_subsystem_api_t template)
- *
- *
- */
static int rd_attach_hba(struct se_hba *hba, u32 host_id)
{
struct rd_host *rd_host;
@@ -62,7 +57,7 @@
pr_debug("CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
" Generic Target Core Stack %s\n", hba->hba_id,
- RD_HBA_VERSION, TARGET_CORE_MOD_VERSION);
+ RD_HBA_VERSION, TARGET_CORE_VERSION);
return 0;
}
@@ -354,12 +349,20 @@
return ret;
}
+static void rd_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct rd_dev *rd_dev = RD_DEV(dev);
+
+ kfree(rd_dev);
+}
+
static void rd_free_device(struct se_device *dev)
{
struct rd_dev *rd_dev = RD_DEV(dev);
rd_release_device_space(rd_dev);
- kfree(rd_dev);
+ call_rcu(&dev->rcu_head, rd_dev_call_rcu);
}
static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
@@ -402,10 +405,7 @@
return NULL;
}
-typedef sense_reason_t (*dif_verify)(struct se_cmd *, sector_t, unsigned int,
- unsigned int, struct scatterlist *, int);
-
-static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, dif_verify dif_verify)
+static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, bool is_read)
{
struct se_device *se_dev = cmd->se_dev;
struct rd_dev *dev = RD_DEV(se_dev);
@@ -465,7 +465,16 @@
#endif /* !CONFIG_ARCH_HAS_SG_CHAIN */
- rc = dif_verify(cmd, cmd->t_task_lba, sectors, 0, prot_sg, prot_offset);
+ if (is_read)
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0,
+ prot_sg, prot_offset);
+ else
+ rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0,
+ cmd->t_prot_sg, 0);
+
+ if (!rc)
+ sbc_dif_copy_prot(cmd, sectors, is_read, prot_sg, prot_offset);
+
if (need_to_release)
kfree(prot_sg);
@@ -511,7 +520,7 @@
if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&
data_direction == DMA_TO_DEVICE) {
- rc = rd_do_prot_rw(cmd, sbc_dif_verify_write);
+ rc = rd_do_prot_rw(cmd, false);
if (rc)
return rc;
}
@@ -579,7 +588,7 @@
if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type &&
data_direction == DMA_FROM_DEVICE) {
- rc = rd_do_prot_rw(cmd, sbc_dif_verify_read);
+ rc = rd_do_prot_rw(cmd, true);
if (rc)
return rc;
}
@@ -693,42 +702,7 @@
return sbc_parse_cdb(cmd, &rd_sbc_ops);
}
-DEF_TB_DEFAULT_ATTRIBS(rd_mcp);
-
-static struct configfs_attribute *rd_mcp_backend_dev_attrs[] = {
- &rd_mcp_dev_attrib_emulate_model_alias.attr,
- &rd_mcp_dev_attrib_emulate_dpo.attr,
- &rd_mcp_dev_attrib_emulate_fua_write.attr,
- &rd_mcp_dev_attrib_emulate_fua_read.attr,
- &rd_mcp_dev_attrib_emulate_write_cache.attr,
- &rd_mcp_dev_attrib_emulate_ua_intlck_ctrl.attr,
- &rd_mcp_dev_attrib_emulate_tas.attr,
- &rd_mcp_dev_attrib_emulate_tpu.attr,
- &rd_mcp_dev_attrib_emulate_tpws.attr,
- &rd_mcp_dev_attrib_emulate_caw.attr,
- &rd_mcp_dev_attrib_emulate_3pc.attr,
- &rd_mcp_dev_attrib_pi_prot_type.attr,
- &rd_mcp_dev_attrib_hw_pi_prot_type.attr,
- &rd_mcp_dev_attrib_pi_prot_format.attr,
- &rd_mcp_dev_attrib_enforce_pr_isids.attr,
- &rd_mcp_dev_attrib_is_nonrot.attr,
- &rd_mcp_dev_attrib_emulate_rest_reord.attr,
- &rd_mcp_dev_attrib_force_pr_aptpl.attr,
- &rd_mcp_dev_attrib_hw_block_size.attr,
- &rd_mcp_dev_attrib_block_size.attr,
- &rd_mcp_dev_attrib_hw_max_sectors.attr,
- &rd_mcp_dev_attrib_optimal_sectors.attr,
- &rd_mcp_dev_attrib_hw_queue_depth.attr,
- &rd_mcp_dev_attrib_queue_depth.attr,
- &rd_mcp_dev_attrib_max_unmap_lba_count.attr,
- &rd_mcp_dev_attrib_max_unmap_block_desc_count.attr,
- &rd_mcp_dev_attrib_unmap_granularity.attr,
- &rd_mcp_dev_attrib_unmap_granularity_alignment.attr,
- &rd_mcp_dev_attrib_max_write_same_len.attr,
- NULL,
-};
-
-static struct se_subsystem_api rd_mcp_template = {
+static const struct target_backend_ops rd_mcp_ops = {
.name = "rd_mcp",
.inquiry_prod = "RAMDISK-MCP",
.inquiry_rev = RD_MCP_VERSION,
@@ -744,25 +718,15 @@
.get_blocks = rd_get_blocks,
.init_prot = rd_init_prot,
.free_prot = rd_free_prot,
+ .tb_dev_attrib_attrs = sbc_attrib_attrs,
};
int __init rd_module_init(void)
{
- struct target_backend_cits *tbc = &rd_mcp_template.tb_cits;
- int ret;
-
- target_core_setup_sub_cits(&rd_mcp_template);
- tbc->tb_dev_attrib_cit.ct_attrs = rd_mcp_backend_dev_attrs;
-
- ret = transport_subsystem_register(&rd_mcp_template);
- if (ret < 0) {
- return ret;
- }
-
- return 0;
+ return transport_backend_register(&rd_mcp_ops);
}
void rd_module_exit(void)
{
- transport_subsystem_release(&rd_mcp_template);
+ target_backend_unregister(&rd_mcp_ops);
}
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 43719b3..e318ddb 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -38,6 +38,7 @@
static sense_reason_t
sbc_check_prot(struct se_device *, struct se_cmd *, unsigned char *, u32, bool);
+static sense_reason_t sbc_execute_unmap(struct se_cmd *cmd);
static sense_reason_t
sbc_emulate_readcapacity(struct se_cmd *cmd)
@@ -177,6 +178,23 @@
EXPORT_SYMBOL(sbc_get_write_same_sectors);
static sense_reason_t
+sbc_execute_write_same_unmap(struct se_cmd *cmd)
+{
+ struct sbc_ops *ops = cmd->protocol_data;
+ sector_t nolb = sbc_get_write_same_sectors(cmd);
+ sense_reason_t ret;
+
+ if (nolb) {
+ ret = ops->execute_unmap(cmd, cmd->t_task_lba, nolb);
+ if (ret)
+ return ret;
+ }
+
+ target_complete_cmd(cmd, GOOD);
+ return 0;
+}
+
+static sense_reason_t
sbc_emulate_noop(struct se_cmd *cmd)
{
target_complete_cmd(cmd, GOOD);
@@ -299,7 +317,7 @@
* translated into block discard requests within backend code.
*/
if (flags[0] & 0x08) {
- if (!ops->execute_write_same_unmap)
+ if (!ops->execute_unmap)
return TCM_UNSUPPORTED_SCSI_OPCODE;
if (!dev->dev_attrib.emulate_tpws) {
@@ -307,7 +325,7 @@
" has emulate_tpws disabled\n");
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
- cmd->execute_cmd = ops->execute_write_same_unmap;
+ cmd->execute_cmd = sbc_execute_write_same_unmap;
return 0;
}
if (!ops->execute_write_same)
@@ -381,7 +399,9 @@
static sense_reason_t
sbc_execute_rw(struct se_cmd *cmd)
{
- return cmd->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents,
+ struct sbc_ops *ops = cmd->protocol_data;
+
+ return ops->execute_rw(cmd, cmd->t_data_sg, cmd->t_data_nents,
cmd->data_direction);
}
@@ -560,6 +580,7 @@
static sense_reason_t
sbc_compare_and_write(struct se_cmd *cmd)
{
+ struct sbc_ops *ops = cmd->protocol_data;
struct se_device *dev = cmd->se_dev;
sense_reason_t ret;
int rc;
@@ -579,7 +600,7 @@
*/
cmd->data_length = cmd->t_task_nolb * dev->dev_attrib.block_size;
- ret = cmd->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents,
+ ret = ops->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents,
DMA_FROM_DEVICE);
if (ret) {
cmd->transport_complete_callback = NULL;
@@ -738,14 +759,15 @@
sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
{
if (cdb[1] & 0x10) {
- if (!dev->dev_attrib.emulate_dpo) {
+ /* see explanation in spc_emulate_modesense */
+ if (!target_check_fua(dev)) {
pr_err("Got CDB: 0x%02x with DPO bit set, but device"
" does not advertise support for DPO\n", cdb[0]);
return -EINVAL;
}
}
if (cdb[1] & 0x8) {
- if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) {
+ if (!target_check_fua(dev)) {
pr_err("Got CDB: 0x%02x with FUA bit set, but device"
" does not advertise support for FUA write\n",
cdb[0]);
@@ -765,12 +787,13 @@
u32 sectors = 0;
sense_reason_t ret;
+ cmd->protocol_data = ops;
+
switch (cdb[0]) {
case READ_6:
sectors = transport_get_sectors_6(cdb);
cmd->t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_10:
@@ -785,7 +808,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_12:
@@ -800,7 +822,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case READ_16:
@@ -815,14 +836,12 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_6:
sectors = transport_get_sectors_6(cdb);
cmd->t_task_lba = transport_lba_21(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_10:
@@ -838,7 +857,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_12:
@@ -853,7 +871,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_16:
@@ -868,7 +885,6 @@
return ret;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
case XDWRITEREAD_10:
@@ -886,7 +902,6 @@
/*
* Setup BIDI XOR callback to be run after I/O completion.
*/
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
break;
@@ -910,7 +925,6 @@
* Setup BIDI XOR callback to be run during after I/O
* completion.
*/
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
cmd->transport_complete_callback = &xdreadwrite_callback;
break;
@@ -954,7 +968,6 @@
cmd->t_task_lba = get_unaligned_be64(&cdb[2]);
cmd->t_task_nolb = sectors;
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB | SCF_COMPARE_AND_WRITE;
- cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_compare_and_write;
cmd->transport_complete_callback = compare_and_write_callback;
break;
@@ -1004,7 +1017,7 @@
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
size = get_unaligned_be16(&cdb[7]);
- cmd->execute_cmd = ops->execute_unmap;
+ cmd->execute_cmd = sbc_execute_unmap;
break;
case WRITE_SAME_16:
sectors = transport_get_sectors_16(cdb);
@@ -1092,12 +1105,10 @@
}
EXPORT_SYMBOL(sbc_get_device_type);
-sense_reason_t
-sbc_execute_unmap(struct se_cmd *cmd,
- sense_reason_t (*do_unmap_fn)(struct se_cmd *, void *,
- sector_t, sector_t),
- void *priv)
+static sense_reason_t
+sbc_execute_unmap(struct se_cmd *cmd)
{
+ struct sbc_ops *ops = cmd->protocol_data;
struct se_device *dev = cmd->se_dev;
unsigned char *buf, *ptr = NULL;
sector_t lba;
@@ -1161,7 +1172,7 @@
goto err;
}
- ret = do_unmap_fn(cmd, priv, lba, range);
+ ret = ops->execute_unmap(cmd, lba, range);
if (ret)
goto err;
@@ -1175,34 +1186,56 @@
target_complete_cmd(cmd, GOOD);
return ret;
}
-EXPORT_SYMBOL(sbc_execute_unmap);
void
sbc_dif_generate(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = cmd->t_prot_sg;
+ struct scatterlist *dsg = cmd->t_data_sg, *psg;
sector_t sector = cmd->t_task_lba;
void *daddr, *paddr;
int i, j, offset = 0;
+ unsigned int block_size = dev->dev_attrib.block_size;
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
- daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ for_each_sg(cmd->t_prot_sg, psg, cmd->t_prot_nents, i) {
paddr = kmap_atomic(sg_page(psg)) + psg->offset;
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
+ for (j = 0; j < psg->length;
+ j += sizeof(struct se_dif_v1_tuple)) {
+ __u16 crc;
+ unsigned int avail;
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
+ if (offset >= dsg->length) {
+ offset -= dsg->length;
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
}
- sdt = paddr + offset;
- sdt->guard_tag = cpu_to_be16(crc_t10dif(daddr + j,
- dev->dev_attrib.block_size));
+ sdt = paddr + j;
+ avail = min(block_size, dsg->length - offset);
+ crc = crc_t10dif(daddr + offset, avail);
+ if (avail < block_size) {
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ offset = block_size - avail;
+ crc = crc_t10dif_update(crc, daddr, offset);
+ } else {
+ offset += block_size;
+ }
+
+ sdt->guard_tag = cpu_to_be16(crc);
if (cmd->prot_type == TARGET_DIF_TYPE1_PROT)
sdt->ref_tag = cpu_to_be32(sector & 0xffffffff);
sdt->app_tag = 0;
@@ -1215,26 +1248,23 @@
be32_to_cpu(sdt->ref_tag));
sector++;
- offset += sizeof(struct se_dif_v1_tuple);
}
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
}
}
static sense_reason_t
sbc_dif_v1_verify(struct se_cmd *cmd, struct se_dif_v1_tuple *sdt,
- const void *p, sector_t sector, unsigned int ei_lba)
+ __u16 crc, sector_t sector, unsigned int ei_lba)
{
- struct se_device *dev = cmd->se_dev;
- int block_size = dev->dev_attrib.block_size;
__be16 csum;
if (!(cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
goto check_ref;
- csum = cpu_to_be16(crc_t10dif(p, block_size));
+ csum = cpu_to_be16(crc);
if (sdt->guard_tag != csum) {
pr_err("DIFv1 checksum failed on sector %llu guard tag 0x%04x"
@@ -1266,9 +1296,8 @@
return 0;
}
-static void
-sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
- struct scatterlist *sg, int sg_off)
+void sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
+ struct scatterlist *sg, int sg_off)
{
struct se_device *dev = cmd->se_dev;
struct scatterlist *psg;
@@ -1300,100 +1329,54 @@
copied += len;
psg_len -= len;
+ kunmap_atomic(addr - sg->offset - offset);
+
if (offset >= sg->length) {
sg = sg_next(sg);
offset = 0;
}
- kunmap_atomic(addr);
}
- kunmap_atomic(paddr);
+ kunmap_atomic(paddr - psg->offset);
}
}
+EXPORT_SYMBOL(sbc_dif_copy_prot);
sense_reason_t
-sbc_dif_verify_write(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
+sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors,
+ unsigned int ei_lba, struct scatterlist *psg, int psg_off)
{
struct se_device *dev = cmd->se_dev;
struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = cmd->t_prot_sg;
+ struct scatterlist *dsg = cmd->t_data_sg;
sector_t sector = start;
void *daddr, *paddr;
- int i, j, offset = 0;
+ int i;
sense_reason_t rc;
+ int dsg_off = 0;
+ unsigned int block_size = dev->dev_attrib.block_size;
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
- daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ for (; psg && sector < start + sectors; psg = sg_next(psg)) {
paddr = kmap_atomic(sg_page(psg)) + psg->offset;
-
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
-
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
- }
-
- sdt = paddr + offset;
-
- pr_debug("DIF WRITE sector: %llu guard_tag: 0x%04x"
- " app_tag: 0x%04x ref_tag: %u\n",
- (unsigned long long)sector, sdt->guard_tag,
- sdt->app_tag, be32_to_cpu(sdt->ref_tag));
-
- rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector,
- ei_lba);
- if (rc) {
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
- cmd->bad_sector = sector;
- return rc;
- }
-
- sector++;
- ei_lba++;
- offset += sizeof(struct se_dif_v1_tuple);
- }
-
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
- }
- if (!sg)
- return 0;
-
- sbc_dif_copy_prot(cmd, sectors, false, sg, sg_off);
-
- return 0;
-}
-EXPORT_SYMBOL(sbc_dif_verify_write);
-
-static sense_reason_t
-__sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
-{
- struct se_device *dev = cmd->se_dev;
- struct se_dif_v1_tuple *sdt;
- struct scatterlist *dsg, *psg = sg;
- sector_t sector = start;
- void *daddr, *paddr;
- int i, j, offset = sg_off;
- sense_reason_t rc;
-
- for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
- paddr = kmap_atomic(sg_page(psg)) + sg->offset;
- for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
+ for (i = psg_off; i < psg->length &&
+ sector < start + sectors;
+ i += sizeof(struct se_dif_v1_tuple)) {
+ __u16 crc;
+ unsigned int avail;
- if (offset >= psg->length) {
- kunmap_atomic(paddr);
- psg = sg_next(psg);
- paddr = kmap_atomic(sg_page(psg)) + psg->offset;
- offset = 0;
+ if (dsg_off >= dsg->length) {
+ dsg_off -= dsg->length;
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return 0;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
}
- sdt = paddr + offset;
+ sdt = paddr + i;
pr_debug("DIF READ sector: %llu guard_tag: 0x%04x"
" app_tag: 0x%04x ref_tag: %u\n",
@@ -1401,53 +1384,43 @@
sdt->app_tag, be32_to_cpu(sdt->ref_tag));
if (sdt->app_tag == cpu_to_be16(0xffff)) {
- sector++;
- offset += sizeof(struct se_dif_v1_tuple);
- continue;
+ dsg_off += block_size;
+ goto next;
}
- rc = sbc_dif_v1_verify(cmd, sdt, daddr + j, sector,
- ei_lba);
+ avail = min(block_size, dsg->length - dsg_off);
+ crc = crc_t10dif(daddr + dsg_off, avail);
+ if (avail < block_size) {
+ kunmap_atomic(daddr - dsg->offset);
+ dsg = sg_next(dsg);
+ if (!dsg) {
+ kunmap_atomic(paddr - psg->offset);
+ return 0;
+ }
+ daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+ dsg_off = block_size - avail;
+ crc = crc_t10dif_update(crc, daddr, dsg_off);
+ } else {
+ dsg_off += block_size;
+ }
+
+ rc = sbc_dif_v1_verify(cmd, sdt, crc, sector, ei_lba);
if (rc) {
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
cmd->bad_sector = sector;
return rc;
}
-
+next:
sector++;
ei_lba++;
- offset += sizeof(struct se_dif_v1_tuple);
}
- kunmap_atomic(paddr);
- kunmap_atomic(daddr);
+ psg_off = 0;
+ kunmap_atomic(daddr - dsg->offset);
+ kunmap_atomic(paddr - psg->offset);
}
return 0;
}
-
-sense_reason_t
-sbc_dif_read_strip(struct se_cmd *cmd)
-{
- struct se_device *dev = cmd->se_dev;
- u32 sectors = cmd->prot_length / dev->prot_length;
-
- return __sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, 0,
- cmd->t_prot_sg, 0);
-}
-
-sense_reason_t
-sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
- unsigned int ei_lba, struct scatterlist *sg, int sg_off)
-{
- sense_reason_t rc;
-
- rc = __sbc_dif_verify_read(cmd, start, sectors, ei_lba, sg, sg_off);
- if (rc)
- return rc;
-
- sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off);
- return 0;
-}
-EXPORT_SYMBOL(sbc_dif_verify_read);
+EXPORT_SYMBOL(sbc_dif_verify);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 52ea640..b074443 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -38,10 +38,9 @@
#include "target_core_ua.h"
#include "target_core_xcopy.h"
-static void spc_fill_alua_data(struct se_port *port, unsigned char *buf)
+static void spc_fill_alua_data(struct se_lun *lun, unsigned char *buf)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
/*
* Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS.
@@ -54,17 +53,11 @@
*
* See spc4r17 section 6.4.2 Table 135
*/
- if (!port)
- return;
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- return;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (tg_pt_gp)
buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
}
sense_reason_t
@@ -95,7 +88,7 @@
/*
* Enable SCCS and TPGS fields for Emulated ALUA
*/
- spc_fill_alua_data(lun->lun_sep, buf);
+ spc_fill_alua_data(lun, buf);
/*
* Set Third-Party Copy (3PC) bit to indicate support for EXTENDED_COPY
@@ -182,11 +175,9 @@
{
struct se_device *dev = cmd->se_dev;
struct se_lun *lun = cmd->se_lun;
- struct se_port *port = NULL;
struct se_portal_group *tpg = NULL;
struct t10_alua_lu_gp_member *lu_gp_mem;
struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
unsigned char *prod = &dev->t10_wwn.model[0];
u32 prod_len;
u32 unit_serial_len, off = 0;
@@ -268,18 +259,15 @@
/* Header size for Designation descriptor */
len += (id_len + 4);
off += (id_len + 4);
- /*
- * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD
- */
- port = lun->lun_sep;
- if (port) {
+
+ if (1) {
struct t10_alua_lu_gp *lu_gp;
u32 padding, scsi_name_len, scsi_target_len;
u16 lu_gp_id = 0;
u16 tg_pt_gp_id = 0;
u16 tpgt;
- tpg = port->sep_tpg;
+ tpg = lun->lun_tpg;
/*
* Relative target port identifer, see spc4r17
* section 7.7.3.7
@@ -287,8 +275,7 @@
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
* section 7.5.1 Table 362
*/
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x1; /* CODE SET == Binary */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -300,8 +287,8 @@
/* Skip over Obsolete field in RTPI payload
* in Table 472 */
off += 2;
- buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
- buf[off++] = (port->sep_rtpi & 0xff);
+ buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
+ buf[off++] = (lun->lun_rtpi & 0xff);
len += 8; /* Header size + Designation descriptor */
/*
* Target port group identifier, see spc4r17
@@ -310,21 +297,16 @@
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
* section 7.5.1 Table 362
*/
- tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
- if (!tg_pt_gp_mem)
- goto check_lu_gp;
-
- spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
- tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
+ spin_lock(&lun->lun_tg_pt_gp_lock);
+ tg_pt_gp = lun->lun_tg_pt_gp;
if (!tg_pt_gp) {
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
goto check_lu_gp;
}
tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id;
- spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
+ spin_unlock(&lun->lun_tg_pt_gp_lock);
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x1; /* CODE SET == Binary */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -372,8 +354,7 @@
* section 7.5.1 Table 362
*/
check_scsi_name:
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target port: 01b */
@@ -413,8 +394,7 @@
/*
* Target device designator
*/
- buf[off] =
- (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
+ buf[off] = tpg->proto_id << 4;
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
buf[off] = 0x80; /* Set PIV=1 */
/* Set ASSOCIATION == target device: 10b */
@@ -482,7 +462,7 @@
buf[5] = 0x07;
/* If WriteCache emulation is enabled, set V_SUP */
- if (se_dev_check_wce(dev))
+ if (target_check_wce(dev))
buf[6] = 0x01;
/* If an LBA map is present set R_SUP */
spin_lock(&cmd->se_dev->t10_alua.lba_map_lock);
@@ -699,7 +679,7 @@
spc_emulate_inquiry(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
- struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg;
+ struct se_portal_group *tpg = cmd->se_lun->lun_tpg;
unsigned char *rbuf;
unsigned char *cdb = cmd->t_task_cdb;
unsigned char *buf;
@@ -713,7 +693,7 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- if (dev == tpg->tpg_virt_lun0.lun_se_dev)
+ if (dev == rcu_access_pointer(tpg->tpg_virt_lun0->lun_se_dev))
buf[0] = 0x3f; /* Not connected */
else
buf[0] = dev->transport->get_device_type(dev);
@@ -889,7 +869,7 @@
if (pc == 1)
goto out;
- if (se_dev_check_wce(dev))
+ if (target_check_wce(dev))
p[2] = 0x04; /* Write Cache Enable */
p[12] = 0x20; /* Disabled Read Ahead */
@@ -986,6 +966,7 @@
int length = 0;
int ret;
int i;
+ bool read_only = target_lun_is_rdonly(cmd);;
memset(buf, 0, SE_MODE_PAGE_BUF);
@@ -996,13 +977,15 @@
length = ten ? 3 : 2;
/* DEVICE-SPECIFIC PARAMETER */
- if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
- (cmd->se_deve &&
- (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
+ if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || read_only)
spc_modesense_write_protect(&buf[length], type);
- if ((se_dev_check_wce(dev)) &&
- (dev->dev_attrib.emulate_fua_write > 0))
+ /*
+ * SBC only allows us to enable FUA and DPO together. Fortunately
+ * DPO is explicitly specified as a hint, so a noop is a perfectly
+ * valid implementation.
+ */
+ if (target_check_fua(dev))
spc_modesense_dpofua(&buf[length], type);
++length;
@@ -1212,8 +1195,9 @@
{
struct se_dev_entry *deve;
struct se_session *sess = cmd->se_sess;
+ struct se_node_acl *nacl;
unsigned char *buf;
- u32 lun_count = 0, offset = 8, i;
+ u32 lun_count = 0, offset = 8;
if (cmd->data_length < 16) {
pr_warn("REPORT LUNS allocation length %u too small\n",
@@ -1235,12 +1219,10 @@
lun_count = 1;
goto done;
}
+ nacl = sess->se_node_acl;
- spin_lock_irq(&sess->se_node_acl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = sess->se_node_acl->device_list[i];
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) {
/*
* We determine the correct LUN LIST LENGTH even once we
* have reached the initial allocation length.
@@ -1253,7 +1235,7 @@
int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]);
offset += 8;
}
- spin_unlock_irq(&sess->se_node_acl->device_list_lock);
+ rcu_read_unlock();
/*
* See SPC3 r07, page 159.
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 40f6c13..20ed5d2 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -37,7 +37,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
@@ -104,7 +103,7 @@
struct se_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
- return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count);
+ return snprintf(page, PAGE_SIZE, "%u\n", dev->export_count);
}
DEV_STAT_SCSI_DEV_ATTR_RO(ports);
@@ -540,20 +539,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_device *dev = lun->lun_se_dev;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(inst);
@@ -562,18 +555,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_device *dev = lun->lun_se_dev;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(dev);
@@ -582,17 +571,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(indx);
@@ -601,21 +587,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- if (!dev)
- return -ENODEV;
-
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(role);
@@ -624,18 +603,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* FIXME: scsiPortBusyStatuses */
+ ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
- /* FIXME: scsiPortBusyStatuses */
- ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(busy_count);
@@ -683,20 +660,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst);
@@ -705,18 +676,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev);
@@ -725,17 +692,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx);
@@ -744,21 +708,17 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
-
- ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
- tpg->se_tpg_tfo->get_fabric_name(), sep->sep_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ lun->lun_rtpi);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name);
@@ -767,22 +727,17 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
-
- ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
- tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
+ tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
+ tpg->se_tpg_tfo->tpg_get_tag(tpg));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index);
@@ -791,18 +746,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%lu\n",
+ atomic_long_read(&lun->lun_stats.cmd_pdus));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds);
@@ -811,19 +763,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(sep->sep_stats.rx_data_octets >> 20));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes);
@@ -832,19 +780,15 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- (u32)(sep->sep_stats.tx_data_octets >> 20));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes);
@@ -853,19 +797,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* FIXME: scsiTgtPortHsInCommands */
+ ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
-
- /* FIXME: scsiTgtPortHsInCommands */
- ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds);
@@ -919,21 +860,14 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_hba *hba;
- ssize_t ret;
+ struct se_device *dev;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
-
- hba = dev->se_hba;
- ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst);
@@ -942,21 +876,18 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ /* scsiTransportType */
+ ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
+ tpg->se_tpg_tfo->get_fabric_name());
}
- tpg = sep->sep_tpg;
- /* scsiTransportType */
- ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
- tpg->se_tpg_tfo->get_fabric_name());
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device);
@@ -965,20 +896,16 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_port *sep;
- struct se_portal_group *tpg;
- ssize_t ret;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
- }
- tpg = sep->sep_tpg;
- ret = snprintf(page, PAGE_SIZE, "%u\n",
- tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx);
@@ -987,26 +914,22 @@
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
- struct se_device *dev = lun->lun_se_dev;
- struct se_port *sep;
- struct se_portal_group *tpg;
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
struct t10_wwn *wwn;
- ssize_t ret;
+ ssize_t ret = -ENODEV;
- spin_lock(&lun->lun_sep_lock);
- sep = lun->lun_sep;
- if (!sep) {
- spin_unlock(&lun->lun_sep_lock);
- return -ENODEV;
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev) {
+ wwn = &dev->t10_wwn;
+ /* scsiTransportDevName */
+ ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
+ tpg->se_tpg_tfo->tpg_get_wwn(tpg),
+ (strlen(wwn->unit_serial)) ? wwn->unit_serial :
+ wwn->vendor);
}
- tpg = sep->sep_tpg;
- wwn = &dev->t10_wwn;
- /* scsiTransportDevName */
- ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
- tpg->se_tpg_tfo->tpg_get_wwn(tpg),
- (strlen(wwn->unit_serial)) ? wwn->unit_serial :
- wwn->vendor);
- spin_unlock(&lun->lun_sep_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name);
@@ -1082,17 +1005,17 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiInstIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst);
@@ -1107,16 +1030,16 @@
struct se_lun *lun;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
- lun = deve->se_lun;
+ lun = rcu_dereference(deve->se_lun);
/* scsiDeviceIndex */
- ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev);
@@ -1131,16 +1054,16 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiAuthIntrTgtPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port);
@@ -1154,15 +1077,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx);
@@ -1176,15 +1099,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrDevOrPort */
ret = snprintf(page, PAGE_SIZE, "%u\n", 1);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port);
@@ -1198,15 +1121,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrName */
ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name);
@@ -1220,15 +1143,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrLunMapIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx);
@@ -1242,15 +1165,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrAttachedTimes */
ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count);
@@ -1264,15 +1187,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrOutCommands */
- ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%lu\n",
+ atomic_long_read(&deve->total_cmds));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds);
@@ -1286,15 +1210,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrReadMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20));
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&deve->read_bytes) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes);
@@ -1308,15 +1233,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrWrittenMegaBytes */
- ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20));
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n",
+ (u32)(atomic_long_read(&deve->write_bytes) >> 20));
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes);
@@ -1330,15 +1256,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrHSOutCommands */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds);
@@ -1352,16 +1278,16 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrLastCreation */
ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time -
INITIAL_JIFFIES) * 100 / HZ));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time);
@@ -1375,15 +1301,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* FIXME: scsiAuthIntrRowStatus */
ret = snprintf(page, PAGE_SIZE, "Ready\n");
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status);
@@ -1448,17 +1374,17 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiInstIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst);
@@ -1473,16 +1399,16 @@
struct se_lun *lun;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
- lun = deve->se_lun;
+ lun = rcu_dereference(deve->se_lun);
/* scsiDeviceIndex */
- ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev);
@@ -1497,16 +1423,16 @@
struct se_portal_group *tpg;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port);
@@ -1546,15 +1472,15 @@
struct se_dev_entry *deve;
ssize_t ret;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[lacl->mapped_lun];
- if (!deve->se_lun || !deve->se_lun_acl) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
+ if (!deve) {
+ rcu_read_unlock();
return -ENODEV;
}
/* scsiAttIntrPortAuthIntrIdx */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return ret;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx);
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index a5bb0c4..5b28203 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -31,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -115,7 +114,7 @@
{
struct se_cmd *se_cmd;
unsigned long flags;
- int ref_tag;
+ u64 ref_tag;
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
@@ -127,16 +126,17 @@
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
continue;
- ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd);
+ ref_tag = se_cmd->tag;
if (tmr->ref_task_tag != ref_tag)
continue;
- printk("ABORT_TASK: Found referenced %s task_tag: %u\n",
+ printk("ABORT_TASK: Found referenced %s task_tag: %llu\n",
se_cmd->se_tfo->get_fabric_name(), ref_tag);
spin_lock(&se_cmd->t_state_lock);
if (se_cmd->transport_state & CMD_T_COMPLETE) {
- printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag);
+ printk("ABORT_TASK: ref_tag: %llu already complete,"
+ " skipping\n", ref_tag);
spin_unlock(&se_cmd->t_state_lock);
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
goto out;
@@ -151,18 +151,18 @@
cancel_work_sync(&se_cmd->work);
transport_wait_for_tasks(se_cmd);
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
transport_cmd_finish_abort(se_cmd, true);
printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
- " ref_tag: %d\n", ref_tag);
+ " ref_tag: %llu\n", ref_tag);
tmr->response = TMR_FUNCTION_COMPLETE;
return;
}
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
out:
- printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %d\n",
+ printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %lld\n",
tmr->ref_task_tag);
tmr->response = TMR_TASK_DOES_NOT_EXIST;
}
@@ -287,16 +287,16 @@
list_del(&cmd->state_list);
pr_debug("LUN_RESET: %s cmd: %p"
- " ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state: %d"
+ " ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
"cdb: 0x%02x\n",
(preempt_and_abort_list) ? "Preempt" : "", cmd,
- cmd->se_tfo->get_task_tag(cmd), 0,
+ cmd->tag, 0,
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
cmd->t_task_cdb[0]);
- pr_debug("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
+ pr_debug("LUN_RESET: ITT[0x%08llx] - pr_res_key: 0x%016Lx"
" -- CMD_T_ACTIVE: %d"
" CMD_T_STOP: %d CMD_T_SENT: %d\n",
- cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
+ cmd->tag, cmd->pr_res_key,
(cmd->transport_state & CMD_T_ACTIVE) != 0,
(cmd->transport_state & CMD_T_STOP) != 0,
(cmd->transport_state & CMD_T_SENT) != 0);
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 84de757..babde4a 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -39,6 +39,7 @@
#include <target/target_core_fabric.h>
#include "target_core_internal.h"
+#include "target_core_alua.h"
#include "target_core_pr.h"
extern struct se_device *g_lun0_dev;
@@ -46,45 +47,9 @@
static DEFINE_SPINLOCK(tpg_lock);
static LIST_HEAD(tpg_list);
-/* core_clear_initiator_node_from_tpg():
- *
- *
- */
-static void core_clear_initiator_node_from_tpg(
- struct se_node_acl *nacl,
- struct se_portal_group *tpg)
-{
- int i;
- struct se_dev_entry *deve;
- struct se_lun *lun;
-
- spin_lock_irq(&nacl->device_list_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
-
- if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
- continue;
-
- if (!deve->se_lun) {
- pr_err("%s device entries device pointer is"
- " NULL, but Initiator has access.\n",
- tpg->se_tpg_tfo->get_fabric_name());
- continue;
- }
-
- lun = deve->se_lun;
- spin_unlock_irq(&nacl->device_list_lock);
- core_disable_device_list_for_node(lun, NULL, deve->mapped_lun,
- TRANSPORT_LUNFLAGS_NO_ACCESS, nacl, tpg);
-
- spin_lock_irq(&nacl->device_list_lock);
- }
- spin_unlock_irq(&nacl->device_list_lock);
-}
-
/* __core_tpg_get_initiator_node_acl():
*
- * spin_lock_bh(&tpg->acl_node_lock); must be held when calling
+ * mutex_lock(&tpg->acl_node_mutex); must be held when calling
*/
struct se_node_acl *__core_tpg_get_initiator_node_acl(
struct se_portal_group *tpg,
@@ -110,9 +75,9 @@
{
struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return acl;
}
@@ -124,22 +89,20 @@
*/
void core_tpg_add_node_to_devs(
struct se_node_acl *acl,
- struct se_portal_group *tpg)
+ struct se_portal_group *tpg,
+ struct se_lun *lun_orig)
{
- int i = 0;
u32 lun_access = 0;
struct se_lun *lun;
struct se_device *dev;
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = tpg->tpg_lun_list[i];
- if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE)
+ mutex_lock(&tpg->tpg_lun_mutex);
+ hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link) {
+ if (lun_orig && lun != lun_orig)
continue;
- spin_unlock(&tpg->tpg_lun_lock);
-
- dev = lun->lun_se_dev;
+ dev = rcu_dereference_check(lun->lun_se_dev,
+ lockdep_is_held(&tpg->tpg_lun_mutex));
/*
* By default in LIO-Target $FABRIC_MOD,
* demo_mode_write_protect is ON, or READ_ONLY;
@@ -157,7 +120,7 @@
lun_access = TRANSPORT_LUNFLAGS_READ_WRITE;
}
- pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%u] - Adding %s"
+ pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%llu] - Adding %s"
" access for LUN in Demo Mode\n",
tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
@@ -165,7 +128,7 @@
"READ-WRITE" : "READ-ONLY");
core_enable_device_list_for_node(lun, NULL, lun->unpacked_lun,
- lun_access, acl, tpg);
+ lun_access, acl, tpg);
/*
* Check to see if there are any existing persistent reservation
* APTPL pre-registrations that need to be enabled for this dynamic
@@ -173,9 +136,8 @@
*/
core_scsi3_check_aptpl_registration(dev, tpg, lun, acl,
lun->unpacked_lun);
- spin_lock(&tpg->tpg_lun_lock);
}
- spin_unlock(&tpg->tpg_lun_lock);
+ mutex_unlock(&tpg->tpg_lun_mutex);
}
/* core_set_queue_depth_for_node():
@@ -196,67 +158,63 @@
return 0;
}
-void array_free(void *array, int n)
+static struct se_node_acl *target_alloc_node_acl(struct se_portal_group *tpg,
+ const unsigned char *initiatorname)
{
- void **a = array;
- int i;
+ struct se_node_acl *acl;
- for (i = 0; i < n; i++)
- kfree(a[i]);
- kfree(a);
-}
-
-static void *array_zalloc(int n, size_t size, gfp_t flags)
-{
- void **a;
- int i;
-
- a = kzalloc(n * sizeof(void*), flags);
- if (!a)
+ acl = kzalloc(max(sizeof(*acl), tpg->se_tpg_tfo->node_acl_size),
+ GFP_KERNEL);
+ if (!acl)
return NULL;
- for (i = 0; i < n; i++) {
- a[i] = kzalloc(size, flags);
- if (!a[i]) {
- array_free(a, n);
- return NULL;
- }
- }
- return a;
+
+ INIT_LIST_HEAD(&acl->acl_list);
+ INIT_LIST_HEAD(&acl->acl_sess_list);
+ INIT_HLIST_HEAD(&acl->lun_entry_hlist);
+ kref_init(&acl->acl_kref);
+ init_completion(&acl->acl_free_comp);
+ spin_lock_init(&acl->nacl_sess_lock);
+ mutex_init(&acl->lun_entry_mutex);
+ atomic_set(&acl->acl_pr_ref_count, 0);
+ if (tpg->se_tpg_tfo->tpg_get_default_depth)
+ acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
+ else
+ acl->queue_depth = 1;
+ snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
+ acl->se_tpg = tpg;
+ acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
+
+ tpg->se_tpg_tfo->set_default_node_attributes(acl);
+
+ if (core_set_queue_depth_for_node(tpg, acl) < 0)
+ goto out_free_acl;
+
+ return acl;
+
+out_free_acl:
+ kfree(acl);
+ return NULL;
}
-/* core_create_device_list_for_node():
- *
- *
- */
-static int core_create_device_list_for_node(struct se_node_acl *nacl)
+static void target_add_node_acl(struct se_node_acl *acl)
{
- struct se_dev_entry *deve;
- int i;
+ struct se_portal_group *tpg = acl->se_tpg;
- nacl->device_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG,
- sizeof(struct se_dev_entry), GFP_KERNEL);
- if (!nacl->device_list) {
- pr_err("Unable to allocate memory for"
- " struct se_node_acl->device_list\n");
- return -ENOMEM;
- }
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- deve = nacl->device_list[i];
+ mutex_lock(&tpg->acl_node_mutex);
+ list_add_tail(&acl->acl_list, &tpg->acl_node_list);
+ tpg->num_node_acls++;
+ mutex_unlock(&tpg->acl_node_mutex);
- atomic_set(&deve->ua_count, 0);
- atomic_set(&deve->pr_ref_count, 0);
- spin_lock_init(&deve->ua_lock);
- INIT_LIST_HEAD(&deve->alua_port_list);
- INIT_LIST_HEAD(&deve->ua_list);
- }
-
- return 0;
+ pr_debug("%s_TPG[%hu] - Added %s ACL with TCQ Depth: %d for %s"
+ " Initiator Node: %s\n",
+ tpg->se_tpg_tfo->get_fabric_name(),
+ tpg->se_tpg_tfo->tpg_get_tag(tpg),
+ acl->dynamic_node_acl ? "DYNAMIC" : "",
+ acl->queue_depth,
+ tpg->se_tpg_tfo->get_fabric_name(),
+ acl->initiatorname);
}
-/* core_tpg_check_initiator_node_acl()
- *
- *
- */
struct se_node_acl *core_tpg_check_initiator_node_acl(
struct se_portal_group *tpg,
unsigned char *initiatorname)
@@ -270,35 +228,11 @@
if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg))
return NULL;
- acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg);
+ acl = target_alloc_node_acl(tpg, initiatorname);
if (!acl)
return NULL;
-
- INIT_LIST_HEAD(&acl->acl_list);
- INIT_LIST_HEAD(&acl->acl_sess_list);
- kref_init(&acl->acl_kref);
- init_completion(&acl->acl_free_comp);
- spin_lock_init(&acl->device_list_lock);
- spin_lock_init(&acl->nacl_sess_lock);
- atomic_set(&acl->acl_pr_ref_count, 0);
- acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
- snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
- acl->se_tpg = tpg;
- acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
acl->dynamic_node_acl = 1;
- tpg->se_tpg_tfo->set_default_node_attributes(acl);
-
- if (core_create_device_list_for_node(acl) < 0) {
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return NULL;
- }
-
- if (core_set_queue_depth_for_node(tpg, acl) < 0) {
- core_free_device_list_for_node(acl, tpg);
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return NULL;
- }
/*
* Here we only create demo-mode MappedLUNs from the active
* TPG LUNs if the fabric is not explicitly asking for
@@ -306,18 +240,9 @@
*/
if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only == NULL) ||
(tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) != 1))
- core_tpg_add_node_to_devs(acl, tpg);
+ core_tpg_add_node_to_devs(acl, tpg, NULL);
- spin_lock_irq(&tpg->acl_node_lock);
- list_add_tail(&acl->acl_list, &tpg->acl_node_list);
- tpg->num_node_acls++;
- spin_unlock_irq(&tpg->acl_node_lock);
-
- pr_debug("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s"
- " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
- tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
-
+ target_add_node_acl(acl);
return acl;
}
EXPORT_SYMBOL(core_tpg_check_initiator_node_acl);
@@ -328,40 +253,13 @@
cpu_relax();
}
-void core_tpg_clear_object_luns(struct se_portal_group *tpg)
-{
- int i;
- struct se_lun *lun;
-
- spin_lock(&tpg->tpg_lun_lock);
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = tpg->tpg_lun_list[i];
-
- if ((lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) ||
- (lun->lun_se_dev == NULL))
- continue;
-
- spin_unlock(&tpg->tpg_lun_lock);
- core_dev_del_lun(tpg, lun);
- spin_lock(&tpg->tpg_lun_lock);
- }
- spin_unlock(&tpg->tpg_lun_lock);
-}
-EXPORT_SYMBOL(core_tpg_clear_object_luns);
-
-/* core_tpg_add_initiator_node_acl():
- *
- *
- */
struct se_node_acl *core_tpg_add_initiator_node_acl(
struct se_portal_group *tpg,
- struct se_node_acl *se_nacl,
- const char *initiatorname,
- u32 queue_depth)
+ const char *initiatorname)
{
- struct se_node_acl *acl = NULL;
+ struct se_node_acl *acl;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
if (acl) {
if (acl->dynamic_node_acl) {
@@ -369,99 +267,42 @@
pr_debug("%s_TPG[%u] - Replacing dynamic ACL"
" for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg), initiatorname);
- spin_unlock_irq(&tpg->acl_node_lock);
- /*
- * Release the locally allocated struct se_node_acl
- * because * core_tpg_add_initiator_node_acl() returned
- * a pointer to an existing demo mode node ACL.
- */
- if (se_nacl)
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg,
- se_nacl);
- goto done;
+ mutex_unlock(&tpg->acl_node_mutex);
+ return acl;
}
pr_err("ACL entry for %s Initiator"
" Node %s already exists for TPG %u, ignoring"
" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return ERR_PTR(-EEXIST);
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
- if (!se_nacl) {
- pr_err("struct se_node_acl pointer is NULL\n");
- return ERR_PTR(-EINVAL);
- }
- /*
- * For v4.x logic the se_node_acl_s is hanging off a fabric
- * dependent structure allocated via
- * struct target_core_fabric_ops->fabric_make_nodeacl()
- */
- acl = se_nacl;
-
- INIT_LIST_HEAD(&acl->acl_list);
- INIT_LIST_HEAD(&acl->acl_sess_list);
- kref_init(&acl->acl_kref);
- init_completion(&acl->acl_free_comp);
- spin_lock_init(&acl->device_list_lock);
- spin_lock_init(&acl->nacl_sess_lock);
- atomic_set(&acl->acl_pr_ref_count, 0);
- acl->queue_depth = queue_depth;
- snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
- acl->se_tpg = tpg;
- acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
-
- tpg->se_tpg_tfo->set_default_node_attributes(acl);
-
- if (core_create_device_list_for_node(acl) < 0) {
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
+ acl = target_alloc_node_acl(tpg, initiatorname);
+ if (!acl)
return ERR_PTR(-ENOMEM);
- }
- if (core_set_queue_depth_for_node(tpg, acl) < 0) {
- core_free_device_list_for_node(acl, tpg);
- tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
- return ERR_PTR(-EINVAL);
- }
-
- spin_lock_irq(&tpg->acl_node_lock);
- list_add_tail(&acl->acl_list, &tpg->acl_node_list);
- tpg->num_node_acls++;
- spin_unlock_irq(&tpg->acl_node_lock);
-
-done:
- pr_debug("%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s"
- " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
- tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
-
+ target_add_node_acl(acl);
return acl;
}
-EXPORT_SYMBOL(core_tpg_add_initiator_node_acl);
-/* core_tpg_del_initiator_node_acl():
- *
- *
- */
-int core_tpg_del_initiator_node_acl(
- struct se_portal_group *tpg,
- struct se_node_acl *acl,
- int force)
+void core_tpg_del_initiator_node_acl(struct se_node_acl *acl)
{
+ struct se_portal_group *tpg = acl->se_tpg;
LIST_HEAD(sess_list);
struct se_session *sess, *sess_tmp;
unsigned long flags;
int rc;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (acl->dynamic_node_acl) {
acl->dynamic_node_acl = 0;
}
list_del(&acl->acl_list);
tpg->num_node_acls--;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
spin_lock_irqsave(&acl->nacl_sess_lock, flags);
acl->acl_stop = 1;
@@ -493,7 +334,6 @@
wait_for_completion(&acl->acl_free_comp);
core_tpg_wait_for_nacl_pr_ref(acl);
- core_clear_initiator_node_from_tpg(acl, tpg);
core_free_device_list_for_node(acl, tpg);
pr_debug("%s_TPG[%hu] - Deleted ACL with TCQ Depth: %d for %s"
@@ -501,9 +341,8 @@
tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
tpg->se_tpg_tfo->get_fabric_name(), acl->initiatorname);
- return 0;
+ kfree(acl);
}
-EXPORT_SYMBOL(core_tpg_del_initiator_node_acl);
/* core_tpg_set_initiator_node_queue_depth():
*
@@ -520,21 +359,21 @@
unsigned long flags;
int dynamic_acl = 0;
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
if (!acl) {
pr_err("Access Control List entry for %s Initiator"
" Node %s does not exists for TPG %hu, ignoring"
" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -ENODEV;
}
if (acl->dynamic_node_acl) {
acl->dynamic_node_acl = 0;
dynamic_acl = 1;
}
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
spin_lock_irqsave(&tpg->session_lock, flags);
list_for_each_entry(sess, &tpg->tpg_sess_list, sess_list) {
@@ -550,10 +389,10 @@
tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
spin_unlock_irqrestore(&tpg->session_lock, flags);
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -EEXIST;
}
/*
@@ -588,10 +427,10 @@
if (init_sess)
tpg->se_tpg_tfo->close_session(init_sess);
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return -EINVAL;
}
spin_unlock_irqrestore(&tpg->session_lock, flags);
@@ -607,10 +446,10 @@
initiatorname, tpg->se_tpg_tfo->get_fabric_name(),
tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_lock_irq(&tpg->acl_node_lock);
+ mutex_lock(&tpg->acl_node_mutex);
if (dynamic_acl)
acl->dynamic_node_acl = 1;
- spin_unlock_irq(&tpg->acl_node_lock);
+ mutex_unlock(&tpg->acl_node_mutex);
return 0;
}
@@ -646,78 +485,54 @@
complete(&lun->lun_ref_comp);
}
-static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
-{
- /* Set in core_dev_setup_virtual_lun0() */
- struct se_device *dev = g_lun0_dev;
- struct se_lun *lun = &se_tpg->tpg_virt_lun0;
- u32 lun_access = TRANSPORT_LUNFLAGS_READ_ONLY;
- int ret;
-
- lun->unpacked_lun = 0;
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- atomic_set(&lun->lun_acl_count, 0);
- init_completion(&lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&lun->lun_acl_list);
- spin_lock_init(&lun->lun_acl_lock);
- spin_lock_init(&lun->lun_sep_lock);
- init_completion(&lun->lun_ref_comp);
-
- ret = core_tpg_add_lun(se_tpg, lun, lun_access, dev);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
int core_tpg_register(
- const struct target_core_fabric_ops *tfo,
struct se_wwn *se_wwn,
struct se_portal_group *se_tpg,
- void *tpg_fabric_ptr,
- int se_tpg_type)
+ int proto_id)
{
- struct se_lun *lun;
- u32 i;
+ int ret;
- se_tpg->tpg_lun_list = array_zalloc(TRANSPORT_MAX_LUNS_PER_TPG,
- sizeof(struct se_lun), GFP_KERNEL);
- if (!se_tpg->tpg_lun_list) {
- pr_err("Unable to allocate struct se_portal_group->"
- "tpg_lun_list\n");
- return -ENOMEM;
+ if (!se_tpg)
+ return -EINVAL;
+ /*
+ * For the typical case where core_tpg_register() is called by a
+ * fabric driver from target_core_fabric_ops->fabric_make_tpg()
+ * configfs context, use the original tf_ops pointer already saved
+ * by target-core in target_fabric_make_wwn().
+ *
+ * Otherwise, for special cases like iscsi-target discovery TPGs
+ * the caller is responsible for setting ->se_tpg_tfo ahead of
+ * calling core_tpg_register().
+ */
+ if (se_wwn)
+ se_tpg->se_tpg_tfo = se_wwn->wwn_tf->tf_ops;
+
+ if (!se_tpg->se_tpg_tfo) {
+ pr_err("Unable to locate se_tpg->se_tpg_tfo pointer\n");
+ return -EINVAL;
}
- for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
- lun = se_tpg->tpg_lun_list[i];
- lun->unpacked_lun = i;
- lun->lun_link_magic = SE_LUN_LINK_MAGIC;
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- atomic_set(&lun->lun_acl_count, 0);
- init_completion(&lun->lun_shutdown_comp);
- INIT_LIST_HEAD(&lun->lun_acl_list);
- spin_lock_init(&lun->lun_acl_lock);
- spin_lock_init(&lun->lun_sep_lock);
- init_completion(&lun->lun_ref_comp);
- }
-
- se_tpg->se_tpg_type = se_tpg_type;
- se_tpg->se_tpg_fabric_ptr = tpg_fabric_ptr;
- se_tpg->se_tpg_tfo = tfo;
+ INIT_HLIST_HEAD(&se_tpg->tpg_lun_hlist);
+ se_tpg->proto_id = proto_id;
se_tpg->se_tpg_wwn = se_wwn;
atomic_set(&se_tpg->tpg_pr_ref_count, 0);
INIT_LIST_HEAD(&se_tpg->acl_node_list);
INIT_LIST_HEAD(&se_tpg->se_tpg_node);
INIT_LIST_HEAD(&se_tpg->tpg_sess_list);
- spin_lock_init(&se_tpg->acl_node_lock);
spin_lock_init(&se_tpg->session_lock);
- spin_lock_init(&se_tpg->tpg_lun_lock);
+ mutex_init(&se_tpg->tpg_lun_mutex);
+ mutex_init(&se_tpg->acl_node_mutex);
- if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) {
- if (core_tpg_setup_virtual_lun0(se_tpg) < 0) {
- array_free(se_tpg->tpg_lun_list,
- TRANSPORT_MAX_LUNS_PER_TPG);
- return -ENOMEM;
+ if (se_tpg->proto_id >= 0) {
+ se_tpg->tpg_virt_lun0 = core_tpg_alloc_lun(se_tpg, 0);
+ if (IS_ERR(se_tpg->tpg_virt_lun0))
+ return PTR_ERR(se_tpg->tpg_virt_lun0);
+
+ ret = core_tpg_add_lun(se_tpg, se_tpg->tpg_virt_lun0,
+ TRANSPORT_LUNFLAGS_READ_ONLY, g_lun0_dev);
+ if (ret < 0) {
+ kfree(se_tpg->tpg_virt_lun0);
+ return ret;
}
}
@@ -725,11 +540,11 @@
list_add_tail(&se_tpg->se_tpg_node, &tpg_list);
spin_unlock_bh(&tpg_lock);
- pr_debug("TARGET_CORE[%s]: Allocated %s struct se_portal_group for"
- " endpoint: %s, Portal Tag: %u\n", tfo->get_fabric_name(),
- (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
- "Normal" : "Discovery", (tfo->tpg_get_wwn(se_tpg) == NULL) ?
- "None" : tfo->tpg_get_wwn(se_tpg), tfo->tpg_get_tag(se_tpg));
+ pr_debug("TARGET_CORE[%s]: Allocated portal_group for endpoint: %s, "
+ "Proto: %d, Portal Tag: %u\n", se_tpg->se_tpg_tfo->get_fabric_name(),
+ se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) ?
+ se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) : NULL,
+ se_tpg->proto_id, se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
return 0;
}
@@ -737,14 +552,14 @@
int core_tpg_deregister(struct se_portal_group *se_tpg)
{
+ const struct target_core_fabric_ops *tfo = se_tpg->se_tpg_tfo;
struct se_node_acl *nacl, *nacl_tmp;
+ LIST_HEAD(node_list);
- pr_debug("TARGET_CORE[%s]: Deallocating %s struct se_portal_group"
- " for endpoint: %s Portal Tag %u\n",
- (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
- "Normal" : "Discovery", se_tpg->se_tpg_tfo->get_fabric_name(),
- se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg),
- se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
+ pr_debug("TARGET_CORE[%s]: Deallocating portal_group for endpoint: %s, "
+ "Proto: %d, Portal Tag: %u\n", tfo->get_fabric_name(),
+ tfo->tpg_get_wwn(se_tpg) ? tfo->tpg_get_wwn(se_tpg) : NULL,
+ se_tpg->proto_id, tfo->tpg_get_tag(se_tpg));
spin_lock_bh(&tpg_lock);
list_del(&se_tpg->se_tpg_node);
@@ -752,61 +567,56 @@
while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0)
cpu_relax();
+
+ mutex_lock(&se_tpg->acl_node_mutex);
+ list_splice_init(&se_tpg->acl_node_list, &node_list);
+ mutex_unlock(&se_tpg->acl_node_mutex);
/*
* Release any remaining demo-mode generated se_node_acl that have
* not been released because of TFO->tpg_check_demo_mode_cache() == 1
* in transport_deregister_session().
*/
- spin_lock_irq(&se_tpg->acl_node_lock);
- list_for_each_entry_safe(nacl, nacl_tmp, &se_tpg->acl_node_list,
- acl_list) {
+ list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
list_del(&nacl->acl_list);
se_tpg->num_node_acls--;
- spin_unlock_irq(&se_tpg->acl_node_lock);
core_tpg_wait_for_nacl_pr_ref(nacl);
core_free_device_list_for_node(nacl, se_tpg);
- se_tpg->se_tpg_tfo->tpg_release_fabric_acl(se_tpg, nacl);
-
- spin_lock_irq(&se_tpg->acl_node_lock);
+ kfree(nacl);
}
- spin_unlock_irq(&se_tpg->acl_node_lock);
- if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL)
- core_tpg_remove_lun(se_tpg, &se_tpg->tpg_virt_lun0);
+ if (se_tpg->proto_id >= 0) {
+ core_tpg_remove_lun(se_tpg, se_tpg->tpg_virt_lun0);
+ kfree_rcu(se_tpg->tpg_virt_lun0, rcu_head);
+ }
- se_tpg->se_tpg_fabric_ptr = NULL;
- array_free(se_tpg->tpg_lun_list, TRANSPORT_MAX_LUNS_PER_TPG);
return 0;
}
EXPORT_SYMBOL(core_tpg_deregister);
struct se_lun *core_tpg_alloc_lun(
struct se_portal_group *tpg,
- u32 unpacked_lun)
+ u64 unpacked_lun)
{
struct se_lun *lun;
- if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
- pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
- "-1: %u for Target Portal Group: %u\n",
- tpg->se_tpg_tfo->get_fabric_name(),
- unpacked_lun, TRANSPORT_MAX_LUNS_PER_TPG-1,
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- return ERR_PTR(-EOVERFLOW);
+ lun = kzalloc(sizeof(*lun), GFP_KERNEL);
+ if (!lun) {
+ pr_err("Unable to allocate se_lun memory\n");
+ return ERR_PTR(-ENOMEM);
}
-
- spin_lock(&tpg->tpg_lun_lock);
- lun = tpg->tpg_lun_list[unpacked_lun];
- if (lun->lun_status == TRANSPORT_LUN_STATUS_ACTIVE) {
- pr_err("TPG Logical Unit Number: %u is already active"
- " on %s Target Portal Group: %u, ignoring request.\n",
- unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(),
- tpg->se_tpg_tfo->tpg_get_tag(tpg));
- spin_unlock(&tpg->tpg_lun_lock);
- return ERR_PTR(-EINVAL);
- }
- spin_unlock(&tpg->tpg_lun_lock);
+ lun->unpacked_lun = unpacked_lun;
+ lun->lun_link_magic = SE_LUN_LINK_MAGIC;
+ atomic_set(&lun->lun_acl_count, 0);
+ init_completion(&lun->lun_ref_comp);
+ INIT_LIST_HEAD(&lun->lun_deve_list);
+ INIT_LIST_HEAD(&lun->lun_dev_link);
+ atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
+ spin_lock_init(&lun->lun_deve_lock);
+ mutex_init(&lun->lun_tg_pt_md_mutex);
+ INIT_LIST_HEAD(&lun->lun_tg_pt_gp_link);
+ spin_lock_init(&lun->lun_tg_pt_gp_lock);
+ lun->lun_tpg = tpg;
return lun;
}
@@ -822,34 +632,70 @@
ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release, 0,
GFP_KERNEL);
if (ret < 0)
- return ret;
+ goto out;
- ret = core_dev_export(dev, tpg, lun);
- if (ret < 0) {
- percpu_ref_exit(&lun->lun_ref);
- return ret;
- }
+ ret = core_alloc_rtpi(lun, dev);
+ if (ret)
+ goto out_kill_ref;
- spin_lock(&tpg->tpg_lun_lock);
+ if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
+ !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp);
+
+ mutex_lock(&tpg->tpg_lun_mutex);
+
+ spin_lock(&dev->se_port_lock);
+ lun->lun_index = dev->dev_index;
+ rcu_assign_pointer(lun->lun_se_dev, dev);
+ dev->export_count++;
+ list_add_tail(&lun->lun_dev_link, &dev->dev_sep_list);
+ spin_unlock(&dev->se_port_lock);
+
lun->lun_access = lun_access;
- lun->lun_status = TRANSPORT_LUN_STATUS_ACTIVE;
- spin_unlock(&tpg->tpg_lun_lock);
+ if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ hlist_add_head_rcu(&lun->link, &tpg->tpg_lun_hlist);
+ mutex_unlock(&tpg->tpg_lun_mutex);
return 0;
+
+out_kill_ref:
+ percpu_ref_exit(&lun->lun_ref);
+out:
+ return ret;
}
void core_tpg_remove_lun(
struct se_portal_group *tpg,
struct se_lun *lun)
{
+ /*
+ * rcu_dereference_raw protected by se_lun->lun_group symlink
+ * reference to se_device->dev_group.
+ */
+ struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
+
core_clear_lun_from_tpg(lun, tpg);
+ /*
+ * Wait for any active I/O references to percpu se_lun->lun_ref to
+ * be released. Also, se_lun->lun_ref is now used by PR and ALUA
+ * logic when referencing a remote target port during ALL_TGT_PT=1
+ * and generating UNIT_ATTENTIONs for ALUA access state transition.
+ */
transport_clear_lun_ref(lun);
- core_dev_unexport(lun->lun_se_dev, tpg, lun);
+ mutex_lock(&tpg->tpg_lun_mutex);
+ if (lun->lun_se_dev) {
+ target_detach_tg_pt_gp(lun);
- spin_lock(&tpg->tpg_lun_lock);
- lun->lun_status = TRANSPORT_LUN_STATUS_FREE;
- spin_unlock(&tpg->tpg_lun_lock);
+ spin_lock(&dev->se_port_lock);
+ list_del(&lun->lun_dev_link);
+ dev->export_count--;
+ rcu_assign_pointer(lun->lun_se_dev, NULL);
+ spin_unlock(&dev->se_port_lock);
+ }
+ if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
+ hlist_del_rcu(&lun->link);
+ mutex_unlock(&tpg->tpg_lun_mutex);
percpu_ref_exit(&lun->lun_ref);
}
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index cd3bfc1..ce8574b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -43,7 +43,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -60,7 +59,6 @@
struct kmem_cache *t10_alua_lu_gp_cache;
struct kmem_cache *t10_alua_lu_gp_mem_cache;
struct kmem_cache *t10_alua_tg_pt_gp_cache;
-struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
struct kmem_cache *t10_alua_lba_map_cache;
struct kmem_cache *t10_alua_lba_map_mem_cache;
@@ -119,16 +117,6 @@
"cache failed\n");
goto out_free_lu_gp_mem_cache;
}
- t10_alua_tg_pt_gp_mem_cache = kmem_cache_create(
- "t10_alua_tg_pt_gp_mem_cache",
- sizeof(struct t10_alua_tg_pt_gp_member),
- __alignof__(struct t10_alua_tg_pt_gp_member),
- 0, NULL);
- if (!t10_alua_tg_pt_gp_mem_cache) {
- pr_err("kmem_cache_create() for t10_alua_tg_pt_gp_"
- "mem_t failed\n");
- goto out_free_tg_pt_gp_cache;
- }
t10_alua_lba_map_cache = kmem_cache_create(
"t10_alua_lba_map_cache",
sizeof(struct t10_alua_lba_map),
@@ -136,7 +124,7 @@
if (!t10_alua_lba_map_cache) {
pr_err("kmem_cache_create() for t10_alua_lba_map_"
"cache failed\n");
- goto out_free_tg_pt_gp_mem_cache;
+ goto out_free_tg_pt_gp_cache;
}
t10_alua_lba_map_mem_cache = kmem_cache_create(
"t10_alua_lba_map_mem_cache",
@@ -159,8 +147,6 @@
kmem_cache_destroy(t10_alua_lba_map_mem_cache);
out_free_lba_map_cache:
kmem_cache_destroy(t10_alua_lba_map_cache);
-out_free_tg_pt_gp_mem_cache:
- kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache);
out_free_tg_pt_gp_cache:
kmem_cache_destroy(t10_alua_tg_pt_gp_cache);
out_free_lu_gp_mem_cache:
@@ -186,7 +172,6 @@
kmem_cache_destroy(t10_alua_lu_gp_cache);
kmem_cache_destroy(t10_alua_lu_gp_mem_cache);
kmem_cache_destroy(t10_alua_tg_pt_gp_cache);
- kmem_cache_destroy(t10_alua_tg_pt_gp_mem_cache);
kmem_cache_destroy(t10_alua_lba_map_cache);
kmem_cache_destroy(t10_alua_lba_map_mem_cache);
}
@@ -406,12 +391,6 @@
void target_put_session(struct se_session *se_sess)
{
- struct se_portal_group *tpg = se_sess->se_tpg;
-
- if (tpg->se_tpg_tfo->put_session != NULL) {
- tpg->se_tpg_tfo->put_session(se_sess);
- return;
- }
kref_put(&se_sess->sess_kref, target_release_session);
}
EXPORT_SYMBOL(target_put_session);
@@ -498,7 +477,7 @@
const struct target_core_fabric_ops *se_tfo;
struct se_node_acl *se_nacl;
unsigned long flags;
- bool comp_nacl = true;
+ bool comp_nacl = true, drop_nacl = false;
if (!se_tpg) {
transport_free_session(se_sess);
@@ -518,22 +497,22 @@
*/
se_nacl = se_sess->se_node_acl;
- spin_lock_irqsave(&se_tpg->acl_node_lock, flags);
+ mutex_lock(&se_tpg->acl_node_mutex);
if (se_nacl && se_nacl->dynamic_node_acl) {
if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
list_del(&se_nacl->acl_list);
se_tpg->num_node_acls--;
- spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags);
- core_tpg_wait_for_nacl_pr_ref(se_nacl);
- core_free_device_list_for_node(se_nacl, se_tpg);
- se_tfo->tpg_release_fabric_acl(se_tpg, se_nacl);
-
- comp_nacl = false;
- spin_lock_irqsave(&se_tpg->acl_node_lock, flags);
+ drop_nacl = true;
}
}
- spin_unlock_irqrestore(&se_tpg->acl_node_lock, flags);
+ mutex_unlock(&se_tpg->acl_node_mutex);
+ if (drop_nacl) {
+ core_tpg_wait_for_nacl_pr_ref(se_nacl);
+ core_free_device_list_for_node(se_nacl, se_tpg);
+ kfree(se_nacl);
+ comp_nacl = false;
+ }
pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
se_tpg->se_tpg_tfo->get_fabric_name());
/*
@@ -593,9 +572,8 @@
* this command for frontend exceptions.
*/
if (cmd->transport_state & CMD_T_STOP) {
- pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
- __func__, __LINE__,
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
+ __func__, __LINE__, cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -1148,6 +1126,8 @@
/*
* Used by fabric modules containing a local struct se_cmd within their
* fabric dependent per I/O descriptor.
+ *
+ * Preserves the value of @cmd->tag.
*/
void transport_init_se_cmd(
struct se_cmd *cmd,
@@ -1274,11 +1254,7 @@
return ret;
cmd->se_cmd_flags |= SCF_SUPPORTED_SAM_OPCODE;
-
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep)
- cmd->se_lun->lun_sep->sep_stats.cmd_pdus++;
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_inc(&cmd->se_lun->lun_stats.cmd_pdus);
return 0;
}
EXPORT_SYMBOL(target_setup_cmd_from_cdb);
@@ -1346,11 +1322,9 @@
cmd->t_data_sg = sgl;
cmd->t_data_nents = sgl_count;
+ cmd->t_bidi_data_sg = sgl_bidi;
+ cmd->t_bidi_data_nents = sgl_bidi_count;
- if (sgl_bidi && sgl_bidi_count) {
- cmd->t_bidi_data_sg = sgl_bidi;
- cmd->t_bidi_data_nents = sgl_bidi_count;
- }
cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
return 0;
}
@@ -1375,6 +1349,8 @@
* @sgl_prot: struct scatterlist memory protection information
* @sgl_prot_count: scatterlist count for protection information
*
+ * Task tags are supported if the caller has set @se_cmd->tag.
+ *
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
@@ -1383,7 +1359,7 @@
* assumes internal allocation of fabric payload buffer by target-core.
*/
int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
+ unsigned char *cdb, unsigned char *sense, u64 unpacked_lun,
u32 data_length, int task_attr, int data_dir, int flags,
struct scatterlist *sgl, u32 sgl_count,
struct scatterlist *sgl_bidi, u32 sgl_bidi_count,
@@ -1412,7 +1388,7 @@
* for fabrics using TARGET_SCF_ACK_KREF that expect a second
* kref_put() to happen during fabric packet acknowledgement.
*/
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret)
return ret;
/*
@@ -1426,7 +1402,7 @@
rc = transport_lookup_cmd_lun(se_cmd, unpacked_lun);
if (rc) {
transport_send_check_condition_and_sense(se_cmd, rc, 0);
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
return 0;
}
@@ -1443,6 +1419,7 @@
if (sgl_prot_count) {
se_cmd->t_prot_sg = sgl_prot;
se_cmd->t_prot_nents = sgl_prot_count;
+ se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC;
}
/*
@@ -1506,6 +1483,8 @@
* @data_dir: DMA data direction
* @flags: flags for command submission from target_sc_flags_tables
*
+ * Task tags are supported if the caller has set @se_cmd->tag.
+ *
* Returns non zero to signal active I/O shutdown failure. All other
* setup exceptions will be returned as a SCSI CHECK_CONDITION response,
* but still return zero here.
@@ -1516,7 +1495,7 @@
* It also assumes interal target core SGL memory allocation.
*/
int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
+ unsigned char *cdb, unsigned char *sense, u64 unpacked_lun,
u32 data_length, int task_attr, int data_dir, int flags)
{
return target_submit_cmd_map_sgls(se_cmd, se_sess, cdb, sense,
@@ -1553,7 +1532,7 @@
**/
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *sense, u32 unpacked_lun,
+ unsigned char *sense, u64 unpacked_lun,
void *fabric_tmr_ptr, unsigned char tm_type,
gfp_t gfp, unsigned int tag, int flags)
{
@@ -1577,7 +1556,7 @@
se_cmd->se_tmr_req->ref_task_tag = tag;
/* See target_submit_cmd for commentary */
- ret = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
+ ret = target_get_sess_cmd(se_cmd, flags & TARGET_SCF_ACK_KREF);
if (ret) {
core_tmr_release_req(se_cmd->se_tmr_req);
return ret;
@@ -1633,9 +1612,8 @@
{
int ret = 0;
- pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
- " CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
- cmd->t_task_cdb[0]);
+ pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08llx"
+ " CDB: 0x%02x\n", cmd, cmd->tag, cmd->t_task_cdb[0]);
pr_debug("-----[ i_state: %d t_state: %d sense_reason: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
cmd->t_state, sense_reason);
@@ -1692,13 +1670,13 @@
* See spc4r17, section 7.4.6 Control Mode Page, Table 349
*/
if (cmd->se_sess &&
- cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2)
- core_scsi3_ua_allocate(cmd->se_sess->se_node_acl,
- cmd->orig_fe_lun, 0x2C,
- ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
-
+ cmd->se_dev->dev_attrib.emulate_ua_intlck_ctrl == 2) {
+ target_ua_allocate_lun(cmd->se_sess->se_node_acl,
+ cmd->orig_fe_lun, 0x2C,
+ ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
+ }
trace_target_cmd_complete(cmd);
- ret = cmd->se_tfo-> queue_status(cmd);
+ ret = cmd->se_tfo->queue_status(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
goto check_stop;
@@ -1759,8 +1737,8 @@
break;
sectors = cmd->data_length >> ilog2(cmd->se_dev->dev_attrib.block_size);
- cmd->pi_err = sbc_dif_verify_write(cmd, cmd->t_task_lba,
- sectors, 0, NULL, 0);
+ cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba,
+ sectors, 0, cmd->t_prot_sg, 0);
if (unlikely(cmd->pi_err)) {
spin_lock_irq(&cmd->t_state_lock);
cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT);
@@ -1843,9 +1821,8 @@
*/
spin_lock_irq(&cmd->t_state_lock);
if (cmd->transport_state & CMD_T_STOP) {
- pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
- __func__, __LINE__,
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
+ __func__, __LINE__, cmd->tag);
spin_unlock_irq(&cmd->t_state_lock);
complete_all(&cmd->t_transport_stop_comp);
@@ -1984,16 +1961,17 @@
static bool target_read_prot_action(struct se_cmd *cmd)
{
- sense_reason_t rc;
-
switch (cmd->prot_op) {
case TARGET_PROT_DIN_STRIP:
if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) {
- rc = sbc_dif_read_strip(cmd);
- if (rc) {
- cmd->pi_err = rc;
+ u32 sectors = cmd->data_length >>
+ ilog2(cmd->se_dev->dev_attrib.block_size);
+
+ cmd->pi_err = sbc_dif_verify(cmd, cmd->t_task_lba,
+ sectors, 0, cmd->t_prot_sg,
+ 0);
+ if (cmd->pi_err)
return true;
- }
}
break;
case TARGET_PROT_DIN_INSERT:
@@ -2072,12 +2050,8 @@
queue_rsp:
switch (cmd->data_direction) {
case DMA_FROM_DEVICE:
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.tx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.tx_data_octets);
/*
* Perform READ_STRIP of PI using software emulation when
* backend had PI enabled, if the transport will not be
@@ -2100,22 +2074,14 @@
goto queue_full;
break;
case DMA_TO_DEVICE:
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.rx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.rx_data_octets);
/*
* Check if we need to send READ payload for BIDI-COMMAND
*/
if (cmd->se_cmd_flags & SCF_BIDI) {
- spin_lock(&cmd->se_lun->lun_sep_lock);
- if (cmd->se_lun->lun_sep) {
- cmd->se_lun->lun_sep->sep_stats.tx_data_octets +=
- cmd->data_length;
- }
- spin_unlock(&cmd->se_lun->lun_sep_lock);
+ atomic_long_add(cmd->data_length,
+ &cmd->se_lun->lun_stats.tx_data_octets);
ret = cmd->se_tfo->queue_data_in(cmd);
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
@@ -2172,6 +2138,12 @@
static inline void transport_free_pages(struct se_cmd *cmd)
{
+ if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) {
+ transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents);
+ cmd->t_prot_sg = NULL;
+ cmd->t_prot_nents = 0;
+ }
+
if (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) {
/*
* Release special case READ buffer payload required for
@@ -2195,10 +2167,6 @@
transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents);
cmd->t_bidi_data_sg = NULL;
cmd->t_bidi_data_nents = 0;
-
- transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents);
- cmd->t_prot_sg = NULL;
- cmd->t_prot_nents = 0;
}
/**
@@ -2220,7 +2188,7 @@
* If this cmd has been setup with target_get_sess_cmd(), drop
* the kref and call ->release_cmd() in kref callback.
*/
- return target_put_sess_cmd(cmd->se_sess, cmd);
+ return target_put_sess_cmd(cmd);
}
/**
@@ -2337,6 +2305,14 @@
int ret = 0;
bool zero_flag = !(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB);
+ if (cmd->prot_op != TARGET_PROT_NORMAL &&
+ !(cmd->se_cmd_flags & SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC)) {
+ ret = target_alloc_sgl(&cmd->t_prot_sg, &cmd->t_prot_nents,
+ cmd->prot_length, true);
+ if (ret < 0)
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+
/*
* Determine is the TCM fabric module has already allocated physical
* memory, and is directly calling transport_generic_map_mem_to_cmd()
@@ -2362,14 +2338,6 @@
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- if (cmd->prot_op != TARGET_PROT_NORMAL) {
- ret = target_alloc_sgl(&cmd->t_prot_sg,
- &cmd->t_prot_nents,
- cmd->prot_length, true);
- if (ret < 0)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
-
ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents,
cmd->data_length, zero_flag);
if (ret < 0)
@@ -2464,13 +2432,12 @@
EXPORT_SYMBOL(transport_generic_free_cmd);
/* target_get_sess_cmd - Add command to active ->sess_cmd_list
- * @se_sess: session to reference
* @se_cmd: command descriptor to add
* @ack_kref: Signal that fabric will perform an ack target_put_sess_cmd()
*/
-int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
- bool ack_kref)
+int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref)
{
+ struct se_session *se_sess = se_cmd->se_sess;
unsigned long flags;
int ret = 0;
@@ -2492,7 +2459,7 @@
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
if (ret && ack_kref)
- target_put_sess_cmd(se_sess, se_cmd);
+ target_put_sess_cmd(se_cmd);
return ret;
}
@@ -2521,11 +2488,12 @@
}
/* target_put_sess_cmd - Check for active I/O shutdown via kref_put
- * @se_sess: session to reference
* @se_cmd: command descriptor to drop
*/
-int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
+int target_put_sess_cmd(struct se_cmd *se_cmd)
{
+ struct se_session *se_sess = se_cmd->se_sess;
+
if (!se_sess) {
se_cmd->se_tfo->release_cmd(se_cmd);
return 1;
@@ -2591,31 +2559,10 @@
}
EXPORT_SYMBOL(target_wait_for_sess_cmds);
-static int transport_clear_lun_ref_thread(void *p)
+void transport_clear_lun_ref(struct se_lun *lun)
{
- struct se_lun *lun = p;
-
percpu_ref_kill(&lun->lun_ref);
-
wait_for_completion(&lun->lun_ref_comp);
- complete(&lun->lun_shutdown_comp);
-
- return 0;
-}
-
-int transport_clear_lun_ref(struct se_lun *lun)
-{
- struct task_struct *kt;
-
- kt = kthread_run(transport_clear_lun_ref_thread, lun,
- "tcm_cl_%u", lun->unpacked_lun);
- if (IS_ERR(kt)) {
- pr_err("Unable to start clear_lun thread\n");
- return PTR_ERR(kt);
- }
- wait_for_completion(&lun->lun_shutdown_comp);
-
- return 0;
}
/**
@@ -2649,10 +2596,8 @@
cmd->transport_state |= CMD_T_STOP;
- pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08x"
- " i_state: %d, t_state: %d, CMD_T_STOP\n",
- cmd, cmd->se_tfo->get_task_tag(cmd),
- cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
+ pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n",
+ cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -2661,9 +2606,8 @@
spin_lock_irqsave(&cmd->t_state_lock, flags);
cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
- pr_debug("wait_for_tasks: Stopped wait_for_completion("
- "&cmd->t_transport_stop_comp) for ITT: 0x%08x\n",
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n",
+ cmd->tag);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
@@ -2965,8 +2909,8 @@
if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
return 1;
- pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n",
- cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n",
+ cmd->t_task_cdb[0], cmd->tag);
cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
@@ -3005,9 +2949,8 @@
transport_lun_remove_cmd(cmd);
- pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x,"
- " ITT: 0x%08x\n", cmd->t_task_cdb[0],
- cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x, ITT: 0x%08llx\n",
+ cmd->t_task_cdb[0], cmd->tag);
trace_target_cmd_complete(cmd);
cmd->se_tfo->queue_status(cmd);
@@ -3033,6 +2976,11 @@
ret = core_tmr_lun_reset(dev, tmr, NULL, NULL);
tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE :
TMR_FUNCTION_REJECTED;
+ if (tmr->response == TMR_FUNCTION_COMPLETE) {
+ target_ua_allocate_lun(cmd->se_sess->se_node_acl,
+ cmd->orig_fe_lun, 0x29,
+ ASCQ_29H_BUS_DEVICE_RESET_FUNCTION_OCCURRED);
+ }
break;
case TMR_TARGET_WARM_RESET:
tmr->response = TMR_FUNCTION_REJECTED;
@@ -3067,3 +3015,22 @@
return 0;
}
EXPORT_SYMBOL(transport_generic_handle_tmr);
+
+bool
+target_check_wce(struct se_device *dev)
+{
+ bool wce = false;
+
+ if (dev->transport->get_write_cache)
+ wce = dev->transport->get_write_cache(dev);
+ else if (dev->dev_attrib.emulate_write_cache > 0)
+ wce = true;
+
+ return wce;
+}
+
+bool
+target_check_fua(struct se_device *dev)
+{
+ return target_check_wce(dev) && dev->dev_attrib.emulate_fua_write > 0;
+}
diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c
index e44cc94..be25eb8 100644
--- a/drivers/target/target_core_ua.c
+++ b/drivers/target/target_core_ua.c
@@ -29,7 +29,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_alua.h"
@@ -50,9 +49,17 @@
if (!nacl)
return 0;
- deve = nacl->device_list[cmd->orig_fe_lun];
- if (!atomic_read(&deve->ua_count))
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
return 0;
+ }
+ if (!atomic_read(&deve->ua_count)) {
+ rcu_read_unlock();
+ return 0;
+ }
+ rcu_read_unlock();
/*
* From sam4r14, section 5.14 Unit attention condition:
*
@@ -79,18 +86,11 @@
}
int core_scsi3_ua_allocate(
- struct se_node_acl *nacl,
- u32 unpacked_lun,
+ struct se_dev_entry *deve,
u8 asc,
u8 ascq)
{
- struct se_dev_entry *deve;
struct se_ua *ua, *ua_p, *ua_tmp;
- /*
- * PASSTHROUGH OPS
- */
- if (!nacl)
- return -EINVAL;
ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC);
if (!ua) {
@@ -99,13 +99,9 @@
}
INIT_LIST_HEAD(&ua->ua_nacl_list);
- ua->ua_nacl = nacl;
ua->ua_asc = asc;
ua->ua_ascq = ascq;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[unpacked_lun];
-
spin_lock(&deve->ua_lock);
list_for_each_entry_safe(ua_p, ua_tmp, &deve->ua_list, ua_nacl_list) {
/*
@@ -113,7 +109,6 @@
*/
if ((ua_p->ua_asc == asc) && (ua_p->ua_ascq == ascq)) {
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
kmem_cache_free(se_ua_cache, ua);
return 0;
}
@@ -158,24 +153,40 @@
list_add_tail(&ua->ua_nacl_list,
&deve->ua_list);
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
atomic_inc_mb(&deve->ua_count);
return 0;
}
list_add_tail(&ua->ua_nacl_list, &deve->ua_list);
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
- pr_debug("[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:"
- " 0x%02x, ASCQ: 0x%02x\n",
- nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
+ pr_debug("Allocated UNIT ATTENTION, mapped LUN: %llu, ASC:"
+ " 0x%02x, ASCQ: 0x%02x\n", deve->mapped_lun,
asc, ascq);
atomic_inc_mb(&deve->ua_count);
return 0;
}
+void target_ua_allocate_lun(struct se_node_acl *nacl,
+ u32 unpacked_lun, u8 asc, u8 ascq)
+{
+ struct se_dev_entry *deve;
+
+ if (!nacl)
+ return;
+
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, unpacked_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return;
+ }
+
+ core_scsi3_ua_allocate(deve, asc, ascq);
+ rcu_read_unlock();
+}
+
void core_scsi3_ua_release_all(
struct se_dev_entry *deve)
{
@@ -210,10 +221,14 @@
if (!nacl)
return;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[cmd->orig_fe_lun];
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return;
+ }
if (!atomic_read(&deve->ua_count)) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return;
}
/*
@@ -249,10 +264,10 @@
atomic_dec_mb(&deve->ua_count);
}
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
pr_debug("[%s]: %s UNIT ATTENTION condition with"
- " INTLCK_CTRL: %d, mapped LUN: %u, got CDB: 0x%02x"
+ " INTLCK_CTRL: %d, mapped LUN: %llu, got CDB: 0x%02x"
" reported ASC: 0x%02x, ASCQ: 0x%02x\n",
nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
(dev->dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" :
@@ -278,10 +293,14 @@
if (!nacl)
return -EINVAL;
- spin_lock_irq(&nacl->device_list_lock);
- deve = nacl->device_list[cmd->orig_fe_lun];
+ rcu_read_lock();
+ deve = target_nacl_find_deve(nacl, cmd->orig_fe_lun);
+ if (!deve) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
if (!atomic_read(&deve->ua_count)) {
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
return -EPERM;
}
/*
@@ -307,10 +326,10 @@
atomic_dec_mb(&deve->ua_count);
}
spin_unlock(&deve->ua_lock);
- spin_unlock_irq(&nacl->device_list_lock);
+ rcu_read_unlock();
pr_debug("[%s]: Released UNIT ATTENTION condition, mapped"
- " LUN: %u, got REQUEST_SENSE reported ASC: 0x%02x,"
+ " LUN: %llu, got REQUEST_SENSE reported ASC: 0x%02x,"
" ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
cmd->orig_fe_lun, *asc, *ascq);
diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h
index a6b56b3..bd6e78b 100644
--- a/drivers/target/target_core_ua.h
+++ b/drivers/target/target_core_ua.h
@@ -25,10 +25,14 @@
#define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS 0x09
+#define ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED 0x03
+#define ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED 0x0E
+
extern struct kmem_cache *se_ua_cache;
extern sense_reason_t target_scsi3_ua_check(struct se_cmd *);
-extern int core_scsi3_ua_allocate(struct se_node_acl *, u32, u8, u8);
+extern int core_scsi3_ua_allocate(struct se_dev_entry *, u8, u8);
+extern void target_ua_allocate_lun(struct se_node_acl *, u32, u8, u8);
extern void core_scsi3_ua_release_all(struct se_dev_entry *);
extern void core_scsi3_ua_for_check_condition(struct se_cmd *, u8 *, u8 *);
extern int core_scsi3_ua_clear_for_request_sense(struct se_cmd *,
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 549af98..c448ef4 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1,6 +1,7 @@
/*
* Copyright (C) 2013 Shaohua Li <shli@kernel.org>
* Copyright (C) 2014 Red Hat, Inc.
+ * Copyright (C) 2015 Arrikto, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -30,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_backend.h>
-#include <target/target_core_backend_configfs.h>
#include <linux/target_core_user.h>
@@ -168,6 +168,11 @@
tcmu_cmd->tcmu_dev = udev;
tcmu_cmd->data_length = se_cmd->data_length;
+ if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
+ tcmu_cmd->data_length += se_cmd->t_bidi_data_sg->length;
+ }
+
tcmu_cmd->deadline = jiffies + msecs_to_jiffies(TCMU_TIME_OUT);
idr_preload(GFP_KERNEL);
@@ -226,9 +231,106 @@
#define UPDATE_HEAD(head, used, size) smp_store_release(&head, ((head % size) + used) % size)
+static void alloc_and_scatter_data_area(struct tcmu_dev *udev,
+ struct scatterlist *data_sg, unsigned int data_nents,
+ struct iovec **iov, int *iov_cnt, bool copy_data)
+{
+ int i;
+ void *from, *to;
+ size_t copy_bytes;
+ struct scatterlist *sg;
+
+ for_each_sg(data_sg, sg, data_nents, i) {
+ copy_bytes = min_t(size_t, sg->length,
+ head_to_end(udev->data_head, udev->data_size));
+ from = kmap_atomic(sg_page(sg)) + sg->offset;
+ to = (void *) udev->mb_addr + udev->data_off + udev->data_head;
+
+ if (copy_data) {
+ memcpy(to, from, copy_bytes);
+ tcmu_flush_dcache_range(to, copy_bytes);
+ }
+
+ /* Even iov_base is relative to mb_addr */
+ (*iov)->iov_len = copy_bytes;
+ (*iov)->iov_base = (void __user *) udev->data_off +
+ udev->data_head;
+ (*iov_cnt)++;
+ (*iov)++;
+
+ UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
+
+ /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */
+ if (sg->length != copy_bytes) {
+ void *from_skip = from + copy_bytes;
+
+ copy_bytes = sg->length - copy_bytes;
+
+ (*iov)->iov_len = copy_bytes;
+ (*iov)->iov_base = (void __user *) udev->data_off +
+ udev->data_head;
+
+ if (copy_data) {
+ to = (void *) udev->mb_addr +
+ udev->data_off + udev->data_head;
+ memcpy(to, from_skip, copy_bytes);
+ tcmu_flush_dcache_range(to, copy_bytes);
+ }
+
+ (*iov_cnt)++;
+ (*iov)++;
+
+ UPDATE_HEAD(udev->data_head,
+ copy_bytes, udev->data_size);
+ }
+
+ kunmap_atomic(from - sg->offset);
+ }
+}
+
+static void gather_and_free_data_area(struct tcmu_dev *udev,
+ struct scatterlist *data_sg, unsigned int data_nents)
+{
+ int i;
+ void *from, *to;
+ size_t copy_bytes;
+ struct scatterlist *sg;
+
+ /* It'd be easier to look at entry's iovec again, but UAM */
+ for_each_sg(data_sg, sg, data_nents, i) {
+ copy_bytes = min_t(size_t, sg->length,
+ head_to_end(udev->data_tail, udev->data_size));
+
+ to = kmap_atomic(sg_page(sg)) + sg->offset;
+ WARN_ON(sg->length + sg->offset > PAGE_SIZE);
+ from = (void *) udev->mb_addr +
+ udev->data_off + udev->data_tail;
+ tcmu_flush_dcache_range(from, copy_bytes);
+ memcpy(to, from, copy_bytes);
+
+ UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
+
+ /* Uh oh, wrapped the data buffer for this sg's data */
+ if (sg->length != copy_bytes) {
+ void *to_skip = to + copy_bytes;
+
+ from = (void *) udev->mb_addr +
+ udev->data_off + udev->data_tail;
+ WARN_ON(udev->data_tail);
+ copy_bytes = sg->length - copy_bytes;
+ tcmu_flush_dcache_range(from, copy_bytes);
+ memcpy(to_skip, from, copy_bytes);
+
+ UPDATE_HEAD(udev->data_tail,
+ copy_bytes, udev->data_size);
+ }
+ kunmap_atomic(to - sg->offset);
+ }
+}
+
/*
- * We can't queue a command until we have space available on the cmd ring *and* space
- * space avail on the data ring.
+ * We can't queue a command until we have space available on the cmd ring *and*
+ * space available on the data ring.
*
* Called with ring lock held.
*/
@@ -276,12 +378,11 @@
size_t base_command_size, command_size;
struct tcmu_mailbox *mb;
struct tcmu_cmd_entry *entry;
- int i;
- struct scatterlist *sg;
struct iovec *iov;
- int iov_cnt = 0;
+ int iov_cnt;
uint32_t cmd_head;
uint64_t cdb_off;
+ bool copy_to_data_area;
if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags))
return -EINVAL;
@@ -294,7 +395,8 @@
* b/c size == offsetof one-past-element.
*/
base_command_size = max(offsetof(struct tcmu_cmd_entry,
- req.iov[se_cmd->t_data_nents + 2]),
+ req.iov[se_cmd->t_bidi_data_nents +
+ se_cmd->t_data_nents + 2]),
sizeof(struct tcmu_cmd_entry));
command_size = base_command_size
+ round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE);
@@ -362,53 +464,20 @@
* Fix up iovecs, and handle if allocation in data ring wrapped.
*/
iov = &entry->req.iov[0];
- for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) {
- size_t copy_bytes = min((size_t)sg->length,
- head_to_end(udev->data_head, udev->data_size));
- void *from = kmap_atomic(sg_page(sg)) + sg->offset;
- void *to = (void *) mb + udev->data_off + udev->data_head;
-
- if (tcmu_cmd->se_cmd->data_direction == DMA_TO_DEVICE) {
- memcpy(to, from, copy_bytes);
- tcmu_flush_dcache_range(to, copy_bytes);
- }
-
- /* Even iov_base is relative to mb_addr */
- iov->iov_len = copy_bytes;
- iov->iov_base = (void __user *) udev->data_off +
- udev->data_head;
- iov_cnt++;
- iov++;
-
- UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
-
- /* Uh oh, we wrapped the buffer. Must split sg across 2 iovs. */
- if (sg->length != copy_bytes) {
- from += copy_bytes;
- copy_bytes = sg->length - copy_bytes;
-
- iov->iov_len = copy_bytes;
- iov->iov_base = (void __user *) udev->data_off +
- udev->data_head;
-
- if (se_cmd->data_direction == DMA_TO_DEVICE) {
- to = (void *) mb + udev->data_off + udev->data_head;
- memcpy(to, from, copy_bytes);
- tcmu_flush_dcache_range(to, copy_bytes);
- }
-
- iov_cnt++;
- iov++;
-
- UPDATE_HEAD(udev->data_head, copy_bytes, udev->data_size);
- }
-
- kunmap_atomic(from);
- }
+ iov_cnt = 0;
+ copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE
+ || se_cmd->se_cmd_flags & SCF_BIDI);
+ alloc_and_scatter_data_area(udev, se_cmd->t_data_sg,
+ se_cmd->t_data_nents, &iov, &iov_cnt, copy_to_data_area);
entry->req.iov_cnt = iov_cnt;
- entry->req.iov_bidi_cnt = 0;
entry->req.iov_dif_cnt = 0;
+ /* Handle BIDI commands */
+ iov_cnt = 0;
+ alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
+ se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false);
+ entry->req.iov_bidi_cnt = iov_cnt;
+
/* All offsets relative to mb_addr, not start of entry! */
cdb_off = CMDR_OFF + cmd_head + base_command_size;
memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb));
@@ -481,47 +550,22 @@
se_cmd->scsi_sense_length);
UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size);
- }
- else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
- struct scatterlist *sg;
- int i;
+ } else if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ /* Discard data_out buffer */
+ UPDATE_HEAD(udev->data_tail,
+ (size_t)se_cmd->t_data_sg->length, udev->data_size);
- /* It'd be easier to look at entry's iovec again, but UAM */
- for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) {
- size_t copy_bytes;
- void *to;
- void *from;
-
- copy_bytes = min((size_t)sg->length,
- head_to_end(udev->data_tail, udev->data_size));
-
- to = kmap_atomic(sg_page(sg)) + sg->offset;
- WARN_ON(sg->length + sg->offset > PAGE_SIZE);
- from = (void *) udev->mb_addr + udev->data_off + udev->data_tail;
- tcmu_flush_dcache_range(from, copy_bytes);
- memcpy(to, from, copy_bytes);
-
- UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
-
- /* Uh oh, wrapped the data buffer for this sg's data */
- if (sg->length != copy_bytes) {
- from = (void *) udev->mb_addr + udev->data_off + udev->data_tail;
- WARN_ON(udev->data_tail);
- to += copy_bytes;
- copy_bytes = sg->length - copy_bytes;
- tcmu_flush_dcache_range(from, copy_bytes);
- memcpy(to, from, copy_bytes);
-
- UPDATE_HEAD(udev->data_tail, copy_bytes, udev->data_size);
- }
-
- kunmap_atomic(to);
- }
-
+ /* Get Data-In buffer */
+ gather_and_free_data_area(udev,
+ se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents);
+ } else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
+ gather_and_free_data_area(udev,
+ se_cmd->t_data_sg, se_cmd->t_data_nents);
} else if (se_cmd->data_direction == DMA_TO_DEVICE) {
UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size);
- } else {
- pr_warn("TCMU: data direction was %d!\n", se_cmd->data_direction);
+ } else if (se_cmd->data_direction != DMA_NONE) {
+ pr_warn("TCMU: data direction was %d!\n",
+ se_cmd->data_direction);
}
target_complete_cmd(cmd->se_cmd, entry->rsp.scsi_status);
@@ -910,6 +954,14 @@
return -EINVAL;
}
+static void tcmu_dev_call_rcu(struct rcu_head *p)
+{
+ struct se_device *dev = container_of(p, struct se_device, rcu_head);
+ struct tcmu_dev *udev = TCMU_DEV(dev);
+
+ kfree(udev);
+}
+
static void tcmu_free_device(struct se_device *dev)
{
struct tcmu_dev *udev = TCMU_DEV(dev);
@@ -935,8 +987,7 @@
kfree(udev->uio_info.name);
kfree(udev->name);
}
-
- kfree(udev);
+ call_rcu(&dev->rcu_head, tcmu_dev_call_rcu);
}
enum {
@@ -1054,27 +1105,7 @@
return passthrough_parse_cdb(cmd, tcmu_pass_op);
}
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_pi_prot_type);
-TB_DEV_ATTR_RO(tcmu, hw_pi_prot_type);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_block_size);
-TB_DEV_ATTR_RO(tcmu, hw_block_size);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_max_sectors);
-TB_DEV_ATTR_RO(tcmu, hw_max_sectors);
-
-DEF_TB_DEV_ATTRIB_RO(tcmu, hw_queue_depth);
-TB_DEV_ATTR_RO(tcmu, hw_queue_depth);
-
-static struct configfs_attribute *tcmu_backend_dev_attrs[] = {
- &tcmu_dev_attrib_hw_pi_prot_type.attr,
- &tcmu_dev_attrib_hw_block_size.attr,
- &tcmu_dev_attrib_hw_max_sectors.attr,
- &tcmu_dev_attrib_hw_queue_depth.attr,
- NULL,
-};
-
-static struct se_subsystem_api tcmu_template = {
+static const struct target_backend_ops tcmu_ops = {
.name = "user",
.inquiry_prod = "USER",
.inquiry_rev = TCMU_VERSION,
@@ -1090,11 +1121,11 @@
.show_configfs_dev_params = tcmu_show_configfs_dev_params,
.get_device_type = sbc_get_device_type,
.get_blocks = tcmu_get_blocks,
+ .tb_dev_attrib_attrs = passthrough_attrib_attrs,
};
static int __init tcmu_module_init(void)
{
- struct target_backend_cits *tbc = &tcmu_template.tb_cits;
int ret;
BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0);
@@ -1117,10 +1148,7 @@
goto out_unreg_device;
}
- target_core_setup_sub_cits(&tcmu_template);
- tbc->tb_dev_attrib_cit.ct_attrs = tcmu_backend_dev_attrs;
-
- ret = transport_subsystem_register(&tcmu_template);
+ ret = transport_backend_register(&tcmu_ops);
if (ret)
goto out_unreg_genl;
@@ -1138,7 +1166,7 @@
static void __exit tcmu_module_exit(void)
{
- transport_subsystem_release(&tcmu_template);
+ target_backend_unregister(&tcmu_ops);
genl_unregister_family(&tcmu_genl_family);
root_device_unregister(tcmu_root_device);
kmem_cache_destroy(tcmu_cmd_cache);
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 5ec0d00..4515f52 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -31,7 +31,6 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include "target_core_internal.h"
#include "target_core_pr.h"
@@ -348,8 +347,7 @@
unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
};
-static struct se_port xcopy_pt_port;
-static struct se_portal_group xcopy_pt_tpg;
+struct se_portal_group xcopy_pt_tpg;
static struct se_session xcopy_pt_sess;
static struct se_node_acl xcopy_pt_nacl;
@@ -358,11 +356,6 @@
return "xcopy-pt";
}
-static u32 xcopy_pt_get_tag(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
static int xcopy_pt_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -423,7 +416,6 @@
static const struct target_core_fabric_ops xcopy_pt_tfo = {
.get_fabric_name = xcopy_pt_get_fabric_name,
- .get_task_tag = xcopy_pt_get_tag,
.get_cmd_state = xcopy_pt_get_cmd_state,
.release_cmd = xcopy_pt_release_cmd,
.check_stop_free = xcopy_pt_check_stop_free,
@@ -445,17 +437,11 @@
return -ENOMEM;
}
- memset(&xcopy_pt_port, 0, sizeof(struct se_port));
- INIT_LIST_HEAD(&xcopy_pt_port.sep_alua_list);
- INIT_LIST_HEAD(&xcopy_pt_port.sep_list);
- mutex_init(&xcopy_pt_port.sep_tg_pt_md_mutex);
-
memset(&xcopy_pt_tpg, 0, sizeof(struct se_portal_group));
INIT_LIST_HEAD(&xcopy_pt_tpg.se_tpg_node);
INIT_LIST_HEAD(&xcopy_pt_tpg.acl_node_list);
INIT_LIST_HEAD(&xcopy_pt_tpg.tpg_sess_list);
- xcopy_pt_port.sep_tpg = &xcopy_pt_tpg;
xcopy_pt_tpg.se_tpg_tfo = &xcopy_pt_tfo;
memset(&xcopy_pt_nacl, 0, sizeof(struct se_node_acl));
@@ -496,10 +482,6 @@
*/
if (remote_port) {
xpt_cmd->remote_port = remote_port;
- pt_cmd->se_lun->lun_sep = &xcopy_pt_port;
- pr_debug("Setup emulated remote DEST xcopy_pt_port: %p to"
- " cmd->se_lun->lun_sep for X-COPY data PUSH\n",
- pt_cmd->se_lun->lun_sep);
} else {
pt_cmd->se_lun = ec_cmd->se_lun;
pt_cmd->se_dev = ec_cmd->se_dev;
@@ -519,10 +501,6 @@
*/
if (remote_port) {
xpt_cmd->remote_port = remote_port;
- pt_cmd->se_lun->lun_sep = &xcopy_pt_port;
- pr_debug("Setup emulated remote SRC xcopy_pt_port: %p to"
- " cmd->se_lun->lun_sep for X-COPY data PULL\n",
- pt_cmd->se_lun->lun_sep);
} else {
pt_cmd->se_lun = ec_cmd->se_lun;
pt_cmd->se_dev = ec_cmd->se_dev;
@@ -574,6 +552,7 @@
xpt_cmd->xcopy_op = xop;
target_xcopy_setup_pt_port(xpt_cmd, xop, remote_port);
+ cmd->tag = 0;
sense_rc = target_setup_cmd_from_cdb(cmd, cdb);
if (sense_rc) {
ret = -EINVAL;
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index 881deb3..39909da 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -80,8 +80,8 @@
* Node ACL for FC remote port session.
*/
struct ft_node_acl {
- struct ft_node_auth node_auth;
struct se_node_acl se_node_acl;
+ struct ft_node_auth node_auth;
};
struct ft_lun {
@@ -157,7 +157,6 @@
int ft_queue_data_in(struct se_cmd *);
int ft_write_pending(struct se_cmd *);
int ft_write_pending_status(struct se_cmd *);
-u32 ft_get_task_tag(struct se_cmd *);
int ft_get_cmd_state(struct se_cmd *);
void ft_queue_tm_resp(struct se_cmd *);
void ft_aborted_task(struct se_cmd *);
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 1bf78e7..6803172 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
@@ -243,15 +242,6 @@
return 0;
}
-u32 ft_get_task_tag(struct se_cmd *se_cmd)
-{
- struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);
-
- if (cmd->aborted)
- return ~0;
- return fc_seq_exch(cmd->seq)->rxid;
-}
-
int ft_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -564,6 +554,7 @@
}
fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
+ cmd->se_cmd.tag = fc_seq_exch(cmd->seq)->rxid;
/*
* Use a single se_cmd->cmd_kref as we expect to release se_cmd
* directly from ft_check_stop_free callback in response path.
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 86b699b..1667093 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -39,13 +39,10 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
-static const struct target_core_fabric_ops ft_fabric_ops;
-
static LIST_HEAD(ft_wwn_list);
DEFINE_MUTEX(ft_lport_lock);
@@ -194,48 +191,17 @@
* Add ACL for an initiator. The ACL is named arbitrarily.
* The port_name and/or node_name are attributes.
*/
-static struct se_node_acl *ft_add_acl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int ft_init_nodeacl(struct se_node_acl *nacl, const char *name)
{
- struct ft_node_acl *acl;
- struct ft_tpg *tpg;
+ struct ft_node_acl *acl =
+ container_of(nacl, struct ft_node_acl, se_node_acl);
u64 wwpn;
- u32 q_depth;
-
- pr_debug("add acl %s\n", name);
- tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
if (ft_parse_wwn(name, &wwpn, 1) < 0)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
- acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL);
- if (!acl)
- return ERR_PTR(-ENOMEM);
acl->node_auth.port_name = wwpn;
-
- q_depth = 32; /* XXX bogus default - get from tpg? */
- return core_tpg_add_initiator_node_acl(&tpg->se_tpg,
- &acl->se_node_acl, name, q_depth);
-}
-
-static void ft_del_acl(struct se_node_acl *se_acl)
-{
- struct se_portal_group *se_tpg = se_acl->se_tpg;
- struct ft_tpg *tpg;
- struct ft_node_acl *acl = container_of(se_acl,
- struct ft_node_acl, se_node_acl);
-
- pr_debug("del acl %s\n",
- config_item_name(&se_acl->acl_group.cg_item));
-
- tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
- pr_debug("del acl %p se_acl %p tpg %p se_tpg %p\n",
- acl, se_acl, tpg, &tpg->se_tpg);
-
- core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1);
- kfree(acl);
+ return 0;
}
struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata)
@@ -245,7 +211,7 @@
struct se_portal_group *se_tpg = &tpg->se_tpg;
struct se_node_acl *se_acl;
- spin_lock_irq(&se_tpg->acl_node_lock);
+ mutex_lock(&se_tpg->acl_node_mutex);
list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) {
acl = container_of(se_acl, struct ft_node_acl, se_node_acl);
pr_debug("acl %p port_name %llx\n",
@@ -259,33 +225,10 @@
break;
}
}
- spin_unlock_irq(&se_tpg->acl_node_lock);
+ mutex_unlock(&se_tpg->acl_node_mutex);
return found;
}
-static struct se_node_acl *ft_tpg_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct ft_node_acl *acl;
-
- acl = kzalloc(sizeof(*acl), GFP_KERNEL);
- if (!acl) {
- pr_err("Unable to allocate struct ft_node_acl\n");
- return NULL;
- }
- pr_debug("acl %p\n", acl);
- return &acl->se_node_acl;
-}
-
-static void ft_tpg_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_acl)
-{
- struct ft_node_acl *acl = container_of(se_acl,
- struct ft_node_acl, se_node_acl);
-
- pr_debug("acl %p\n", acl);
- kfree(acl);
-}
-
/*
* local_port port_group (tpg) ops.
*/
@@ -333,8 +276,7 @@
return NULL;
}
- ret = core_tpg_register(&ft_fabric_ops, wwn, &tpg->se_tpg,
- tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
destroy_workqueue(wq);
kfree(tpg);
@@ -459,6 +401,11 @@
NULL,
};
+static inline struct ft_tpg *ft_tpg(struct se_portal_group *se_tpg)
+{
+ return container_of(se_tpg, struct ft_tpg, se_tpg);
+}
+
static char *ft_get_fabric_name(void)
{
return "fc";
@@ -466,25 +413,16 @@
static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->lport_wwn->name;
+ return ft_tpg(se_tpg)->lport_wwn->name;
}
static u16 ft_get_tag(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
/*
* This tag is used when forming SCSI Name identifier in EVPD=1 0x83
* to represent the SCSI Target Port.
*/
- return tpg->index;
-}
-
-static u32 ft_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
+ return ft_tpg(se_tpg)->index;
}
static int ft_check_false(struct se_portal_group *se_tpg)
@@ -498,28 +436,20 @@
static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
- struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
-
- return tpg->index;
+ return ft_tpg(se_tpg)->index;
}
static const struct target_core_fabric_ops ft_fabric_ops = {
.module = THIS_MODULE,
.name = "fc",
+ .node_acl_size = sizeof(struct ft_node_acl),
.get_fabric_name = ft_get_fabric_name,
- .get_fabric_proto_ident = fc_get_fabric_proto_ident,
.tpg_get_wwn = ft_get_fabric_wwn,
.tpg_get_tag = ft_get_tag,
- .tpg_get_default_depth = ft_get_default_depth,
- .tpg_get_pr_transport_id = fc_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = fc_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = fc_parse_pr_out_transport_id,
.tpg_check_demo_mode = ft_check_false,
.tpg_check_demo_mode_cache = ft_check_false,
.tpg_check_demo_mode_write_protect = ft_check_false,
.tpg_check_prod_mode_write_protect = ft_check_false,
- .tpg_alloc_fabric_acl = ft_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = ft_tpg_release_fabric_acl,
.tpg_get_inst_index = ft_tpg_get_inst_index,
.check_stop_free = ft_check_stop_free,
.release_cmd = ft_release_cmd,
@@ -530,7 +460,6 @@
.write_pending = ft_write_pending,
.write_pending_status = ft_write_pending_status,
.set_default_node_attributes = ft_set_default_node_attr,
- .get_task_tag = ft_get_task_tag,
.get_cmd_state = ft_get_cmd_state,
.queue_data_in = ft_queue_data_in,
.queue_status = ft_queue_status,
@@ -544,12 +473,7 @@
.fabric_drop_wwn = &ft_del_wwn,
.fabric_make_tpg = &ft_add_tpg,
.fabric_drop_tpg = &ft_del_tpg,
- .fabric_post_link = NULL,
- .fabric_pre_unlink = NULL,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = &ft_add_acl,
- .fabric_drop_nodeacl = &ft_del_acl,
+ .fabric_init_nodeacl = &ft_init_nodeacl,
.tfc_wwn_attrs = ft_wwn_attrs,
.tfc_tpg_nacl_base_attrs = ft_nacl_base_attrs,
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index fe585d1..4b0fedd 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -44,7 +44,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index f2a616d..31a9e3f 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -36,7 +36,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "tcm_fc.h"
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 9782043..d75a66c 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -22,6 +22,7 @@
#include <linux/pm_runtime.h>
#include <linux/console.h>
#include <linux/pm_qos.h>
+#include <linux/pm_wakeirq.h>
#include <linux/dma-mapping.h>
#include "8250.h"
@@ -552,17 +553,6 @@
pm_qos_update_request(&priv->pm_qos_request, priv->latency);
}
-static irqreturn_t omap_wake_irq(int irq, void *dev_id)
-{
- struct uart_port *port = dev_id;
- int ret;
-
- ret = port->handle_irq(port);
- if (ret)
- return IRQ_HANDLED;
- return IRQ_NONE;
-}
-
#ifdef CONFIG_SERIAL_8250_DMA
static int omap_8250_dma_handle_irq(struct uart_port *port);
#endif
@@ -596,11 +586,9 @@
int ret;
if (priv->wakeirq) {
- ret = request_irq(priv->wakeirq, omap_wake_irq,
- port->irqflags, "uart wakeup irq", port);
+ ret = dev_pm_set_dedicated_wake_irq(port->dev, priv->wakeirq);
if (ret)
return ret;
- disable_irq(priv->wakeirq);
}
pm_runtime_get_sync(port->dev);
@@ -649,8 +637,7 @@
err:
pm_runtime_mark_last_busy(port->dev);
pm_runtime_put_autosuspend(port->dev);
- if (priv->wakeirq)
- free_irq(priv->wakeirq, port);
+ dev_pm_clear_wake_irq(port->dev);
return ret;
}
@@ -682,10 +669,8 @@
pm_runtime_mark_last_busy(port->dev);
pm_runtime_put_autosuspend(port->dev);
-
free_irq(port->irq, port);
- if (priv->wakeirq)
- free_irq(priv->wakeirq, port);
+ dev_pm_clear_wake_irq(port->dev);
}
static void omap_8250_throttle(struct uart_port *port)
@@ -1226,31 +1211,6 @@
return 0;
}
-#ifdef CONFIG_PM
-
-static inline void omap8250_enable_wakeirq(struct omap8250_priv *priv,
- bool enable)
-{
- if (!priv->wakeirq)
- return;
-
- if (enable)
- enable_irq(priv->wakeirq);
- else
- disable_irq_nosync(priv->wakeirq);
-}
-
-static void omap8250_enable_wakeup(struct omap8250_priv *priv,
- bool enable)
-{
- if (enable == priv->wakeups_enabled)
- return;
-
- omap8250_enable_wakeirq(priv, enable);
- priv->wakeups_enabled = enable;
-}
-#endif
-
#ifdef CONFIG_PM_SLEEP
static int omap8250_prepare(struct device *dev)
{
@@ -1277,11 +1237,6 @@
serial8250_suspend_port(priv->line);
flush_work(&priv->qos_work);
-
- if (device_may_wakeup(dev))
- omap8250_enable_wakeup(priv, true);
- else
- omap8250_enable_wakeup(priv, false);
return 0;
}
@@ -1289,9 +1244,6 @@
{
struct omap8250_priv *priv = dev_get_drvdata(dev);
- if (device_may_wakeup(dev))
- omap8250_enable_wakeup(priv, false);
-
serial8250_resume_port(priv->line);
return 0;
}
@@ -1333,7 +1285,6 @@
return -EBUSY;
}
- omap8250_enable_wakeup(priv, true);
if (up->dma)
omap_8250_rx_dma(up, UART_IIR_RX_TIMEOUT);
@@ -1354,7 +1305,6 @@
return 0;
up = serial8250_get_port(priv->line);
- omap8250_enable_wakeup(priv, false);
loss_cntx = omap8250_lost_context(up);
if (loss_cntx)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7f49172..7a2172b 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -38,6 +38,7 @@
#include <linux/serial_core.h>
#include <linux/irq.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/gpio.h>
@@ -160,7 +161,6 @@
unsigned long port_activity;
int context_loss_cnt;
u32 errata;
- u8 wakeups_enabled;
u32 features;
int rts_gpio;
@@ -209,28 +209,11 @@
return pdata->get_context_loss_count(up->dev);
}
-static inline void serial_omap_enable_wakeirq(struct uart_omap_port *up,
- bool enable)
-{
- if (!up->wakeirq)
- return;
-
- if (enable)
- enable_irq(up->wakeirq);
- else
- disable_irq_nosync(up->wakeirq);
-}
-
+/* REVISIT: Remove this when omap3 boots in device tree only mode */
static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
{
struct omap_uart_port_info *pdata = dev_get_platdata(up->dev);
- if (enable == up->wakeups_enabled)
- return;
-
- serial_omap_enable_wakeirq(up, enable);
- up->wakeups_enabled = enable;
-
if (!pdata || !pdata->enable_wakeup)
return;
@@ -750,13 +733,11 @@
/* Optional wake-up IRQ */
if (up->wakeirq) {
- retval = request_irq(up->wakeirq, serial_omap_irq,
- up->port.irqflags, up->name, up);
+ retval = dev_pm_set_dedicated_wake_irq(up->dev, up->wakeirq);
if (retval) {
free_irq(up->port.irq, up);
return retval;
}
- disable_irq(up->wakeirq);
}
dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
@@ -845,8 +826,7 @@
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
free_irq(up->port.irq, up);
- if (up->wakeirq)
- free_irq(up->wakeirq, up);
+ dev_pm_clear_wake_irq(up->dev);
}
static void serial_omap_uart_qos_work(struct work_struct *work)
@@ -1139,13 +1119,6 @@
serial_out(up, UART_EFR, efr);
serial_out(up, UART_LCR, 0);
- if (!device_may_wakeup(up->dev)) {
- if (!state)
- pm_runtime_forbid(up->dev);
- else
- pm_runtime_allow(up->dev);
- }
-
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 3cc109f..d2259c6 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -2936,7 +2936,7 @@
if (fsg_lun_is_open(lun)) {
p = "(error)";
if (pathbuf) {
- p = d_path(&lun->filp->f_path, pathbuf, PATH_MAX);
+ p = file_path(lun->filp, pathbuf, PATH_MAX);
if (IS_ERR(p))
p = "(error)";
}
diff --git a/drivers/usb/gadget/function/storage_common.c b/drivers/usb/gadget/function/storage_common.c
index 648f9e4..d626830 100644
--- a/drivers/usb/gadget/function/storage_common.c
+++ b/drivers/usb/gadget/function/storage_common.c
@@ -341,7 +341,7 @@
down_read(filesem);
if (fsg_lun_is_open(curlun)) { /* Get the complete pathname */
- p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
+ p = file_path(curlun->filp, buf, PAGE_SIZE - 1);
if (IS_ERR(p))
rc = PTR_ERR(p);
else {
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 6ce932f..c3c4808 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -20,7 +20,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <asm/unaligned.h>
@@ -28,8 +27,6 @@
USB_GADGET_COMPOSITE_OPTIONS();
-static const struct target_core_fabric_ops usbg_ops;
-
static inline struct f_uas *to_f_uas(struct usb_function *f)
{
return container_of(f, struct f_uas, function);
@@ -1111,6 +1108,7 @@
memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len);
cmd->tag = be16_to_cpup(&cmd_iu->tag);
+ cmd->se_cmd.tag = cmd->tag;
if (fu->flags & USBG_USE_STREAMS) {
if (cmd->tag > UASP_SS_EP_COMP_NUM_STREAMS)
goto err;
@@ -1244,6 +1242,7 @@
cmd->unpacked_lun = cbw->Lun;
cmd->is_read = cbw->Flags & US_BULK_FLAG_IN ? 1 : 0;
cmd->data_len = le32_to_cpu(cbw->DataTransferLength);
+ cmd->se_cmd.tag = le32_to_cpu(cmd->bot_tag);
INIT_WORK(&cmd->work, bot_cmd_work);
ret = queue_work(tpg->workqueue, &cmd->work);
@@ -1273,23 +1272,6 @@
return "usb_gadget";
}
-static u8 usbg_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- u8 proto_id;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- proto_id = sas_get_fabric_proto_ident(se_tpg);
- break;
- }
-
- return proto_id;
-}
-
static char *usbg_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct usbg_tpg *tpg = container_of(se_tpg,
@@ -1306,97 +1288,6 @@
return tpg->tport_tpgt;
}
-static u32 usbg_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 usbg_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- break;
- }
-
- return ret;
-}
-
-static u32 usbg_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- break;
- }
-
- return ret;
-}
-
-static char *usbg_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- char *tid = NULL;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- }
-
- return tid;
-}
-
-static struct se_node_acl *usbg_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct usbg_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct usbg_nacl), GFP_KERNEL);
- if (!nacl)
- return NULL;
-
- return &nacl->se_node_acl;
-}
-
-static void usbg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct usbg_nacl *nacl = container_of(se_nacl,
- struct usbg_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 usbg_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1447,18 +1338,6 @@
return;
}
-static u32 usbg_get_task_tag(struct se_cmd *se_cmd)
-{
- struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd,
- se_cmd);
- struct f_uas *fu = cmd->fu;
-
- if (fu->flags & USBG_IS_BOT)
- return le32_to_cpu(cmd->bot_tag);
- else
- return cmd->tag;
-}
-
static int usbg_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1488,50 +1367,11 @@
return n;
}
-static struct se_node_acl *usbg_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
+static int usbg_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct usbg_nacl *nacl;
- u64 wwpn = 0;
- u32 nexus_depth;
- const char *wnn_name;
-
- wnn_name = usbg_check_wwn(name);
- if (!wnn_name)
- return ERR_PTR(-EINVAL);
- se_nacl_new = usbg_alloc_fabric_acl(se_tpg);
- if (!(se_nacl_new))
- return ERR_PTR(-ENOMEM);
-
- nexus_depth = 1;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- usbg_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct usbg_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct usbg_nacl, se_node_acl);
- nacl->iport_wwpn = wwpn;
- snprintf(nacl->iport_name, sizeof(nacl->iport_name), "%s", name);
- return se_nacl;
-}
-
-static void usbg_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct usbg_nacl *nacl = container_of(se_acl,
- struct usbg_nacl, se_node_acl);
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
+ if (!usbg_check_wwn(name))
+ return -EINVAL;
+ return 0;
}
struct usbg_tpg *the_only_tpg_I_currently_have;
@@ -1571,8 +1411,11 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&usbg_ops, wwn, &tpg->se_tpg, tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ /*
+ * SPC doesn't assign a protocol identifier for USB-SCSI, so we
+ * pretend to be SAS..
+ */
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SAS);
if (ret < 0) {
destroy_workqueue(tpg->workqueue);
kfree(tpg);
@@ -1866,19 +1709,12 @@
.module = THIS_MODULE,
.name = "usb_gadget",
.get_fabric_name = usbg_get_fabric_name,
- .get_fabric_proto_ident = usbg_get_fabric_proto_ident,
.tpg_get_wwn = usbg_get_fabric_wwn,
.tpg_get_tag = usbg_get_tag,
- .tpg_get_default_depth = usbg_get_default_depth,
- .tpg_get_pr_transport_id = usbg_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = usbg_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = usbg_parse_pr_out_transport_id,
.tpg_check_demo_mode = usbg_check_true,
.tpg_check_demo_mode_cache = usbg_check_false,
.tpg_check_demo_mode_write_protect = usbg_check_false,
.tpg_check_prod_mode_write_protect = usbg_check_false,
- .tpg_alloc_fabric_acl = usbg_alloc_fabric_acl,
- .tpg_release_fabric_acl = usbg_release_fabric_acl,
.tpg_get_inst_index = usbg_tpg_get_inst_index,
.release_cmd = usbg_release_cmd,
.shutdown_session = usbg_shutdown_session,
@@ -1888,7 +1724,6 @@
.write_pending = usbg_send_write_request,
.write_pending_status = usbg_write_pending_status,
.set_default_node_attributes = usbg_set_default_node_attrs,
- .get_task_tag = usbg_get_task_tag,
.get_cmd_state = usbg_get_cmd_state,
.queue_data_in = usbg_send_read_response,
.queue_status = usbg_send_status_response,
@@ -1902,10 +1737,7 @@
.fabric_drop_tpg = usbg_drop_tpg,
.fabric_post_link = usbg_port_link,
.fabric_pre_unlink = usbg_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = usbg_make_nodeacl,
- .fabric_drop_nodeacl = usbg_drop_nodeacl,
+ .fabric_init_nodeacl = usbg_init_nodeacl,
.tfc_wwn_attrs = usbg_wwn_attrs,
.tfc_tpg_base_attrs = usbg_base_attrs,
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.h b/drivers/usb/gadget/legacy/tcm_usb_gadget.h
index 9fb3544..0b749e1 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.h
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.h
@@ -24,15 +24,6 @@
#define USB_G_ALT_INT_BBB 0
#define USB_G_ALT_INT_UAS 1
-struct usbg_nacl {
- /* Binary World Wide unique Port Name for SAS Initiator port */
- u64 iport_wwpn;
- /* ASCII formatted WWPN for Sas Initiator port */
- char iport_name[USBG_NAMELEN];
- /* Returned by usbg_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct tcm_usbg_nexus {
struct se_session *tvn_se_sess;
};
@@ -52,8 +43,6 @@
};
struct usbg_tport {
- /* SCSI protocol the tport is providing */
- u8 tport_proto_id;
/* Binary World Wide unique Port Name for SAS Target port */
u64 tport_wwpn;
/* ASCII formatted WWPN for SAS Target port */
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 017a1e8..533eaf0 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -32,3 +32,18 @@
---help---
This option is selected by any driver which needs to access
the core of vhost.
+
+config VHOST_CROSS_ENDIAN_LEGACY
+ bool "Cross-endian support for vhost"
+ default n
+ ---help---
+ This option allows vhost to support guests with a different byte
+ ordering from host while using legacy virtio.
+
+ Userspace programs can control the feature using the
+ VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
+
+ This is only useful on a few platforms (ppc64 and arm64). Since it
+ adds some overhead, it is disabled by default.
+
+ If unsure, say "N".
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 55722fe..dfcc02c 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -43,7 +43,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include <linux/vhost.h>
#include <linux/virtio_scsi.h>
@@ -117,15 +116,6 @@
struct se_session *tvn_se_sess;
};
-struct vhost_scsi_nacl {
- /* Binary World Wide unique Port Name for Vhost Initiator port */
- u64 iport_wwpn;
- /* ASCII formatted WWPN for Sas Initiator port */
- char iport_name[VHOST_SCSI_NAMELEN];
- /* Returned by vhost_scsi_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct vhost_scsi_tpg {
/* Vhost port target portal group tag for TCM */
u16 tport_tpgt;
@@ -218,7 +208,6 @@
int vs_events_nr; /* num of pending events, protected by vq->mutex */
};
-static struct target_core_fabric_ops vhost_scsi_ops;
static struct workqueue_struct *vhost_scsi_workqueue;
/* Global spinlock to protect vhost_scsi TPG list for vhost IOCTL access */
@@ -299,28 +288,6 @@
return "vhost";
}
-static u8 vhost_scsi_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
-}
-
static char *vhost_scsi_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@@ -337,102 +304,6 @@
return tpg->tport_tpgt;
}
-static u32 vhost_scsi_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32
-vhost_scsi_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32
-vhost_scsi_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-static char *
-vhost_scsi_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct vhost_scsi_tpg *tpg = container_of(se_tpg,
- struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using"
- " SAS emulation\n", tport->tport_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
-}
-
static int vhost_scsi_check_prot_fabric_only(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@@ -441,29 +312,6 @@
return tpg->tv_fabric_prot_type;
}
-static struct se_node_acl *
-vhost_scsi_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct vhost_scsi_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct vhost_scsi_nacl), GFP_KERNEL);
- if (!nacl) {
- pr_err("Unable to allocate struct vhost_scsi_nacl\n");
- return NULL;
- }
-
- return &nacl->se_node_acl;
-}
-
-static void
-vhost_scsi_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct vhost_scsi_nacl *nacl = container_of(se_nacl,
- struct vhost_scsi_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 vhost_scsi_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -521,11 +369,6 @@
return;
}
-static u32 vhost_scsi_get_task_tag(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
static int vhost_scsi_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -609,7 +452,7 @@
static int vhost_scsi_check_stop_free(struct se_cmd *se_cmd)
{
- return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+ return target_put_sess_cmd(se_cmd);
}
static void
@@ -970,6 +813,7 @@
}
tv_nexus = cmd->tvc_nexus;
+ se_cmd->tag = 0;
rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
cmd->tvc_lun, cmd->tvc_exp_data_len,
@@ -1824,50 +1668,6 @@
mutex_unlock(&vhost_scsi_mutex);
}
-static struct se_node_acl *
-vhost_scsi_make_nodeacl(struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
-{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct vhost_scsi_nacl *nacl;
- u64 wwpn = 0;
- u32 nexus_depth;
-
- /* vhost_scsi_parse_wwn(name, &wwpn, 1) < 0)
- return ERR_PTR(-EINVAL); */
- se_nacl_new = vhost_scsi_alloc_fabric_acl(se_tpg);
- if (!se_nacl_new)
- return ERR_PTR(-ENOMEM);
-
- nexus_depth = 1;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- vhost_scsi_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct vhost_scsi_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct vhost_scsi_nacl, se_node_acl);
- nacl->iport_wwpn = wwpn;
-
- return se_nacl;
-}
-
-static void vhost_scsi_drop_nodeacl(struct se_node_acl *se_acl)
-{
- struct vhost_scsi_nacl *nacl = container_of(se_acl,
- struct vhost_scsi_nacl, se_node_acl);
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
-}
-
static void vhost_scsi_free_cmd_map_res(struct vhost_scsi_nexus *nexus,
struct se_session *se_sess)
{
@@ -2202,8 +2002,7 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&vhost_scsi_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, tport->tport_proto_id);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -2327,20 +2126,13 @@
.module = THIS_MODULE,
.name = "vhost",
.get_fabric_name = vhost_scsi_get_fabric_name,
- .get_fabric_proto_ident = vhost_scsi_get_fabric_proto_ident,
.tpg_get_wwn = vhost_scsi_get_fabric_wwn,
.tpg_get_tag = vhost_scsi_get_tpgt,
- .tpg_get_default_depth = vhost_scsi_get_default_depth,
- .tpg_get_pr_transport_id = vhost_scsi_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = vhost_scsi_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = vhost_scsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = vhost_scsi_check_true,
.tpg_check_demo_mode_cache = vhost_scsi_check_true,
.tpg_check_demo_mode_write_protect = vhost_scsi_check_false,
.tpg_check_prod_mode_write_protect = vhost_scsi_check_false,
.tpg_check_prot_fabric_only = vhost_scsi_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = vhost_scsi_alloc_fabric_acl,
- .tpg_release_fabric_acl = vhost_scsi_release_fabric_acl,
.tpg_get_inst_index = vhost_scsi_tpg_get_inst_index,
.release_cmd = vhost_scsi_release_cmd,
.check_stop_free = vhost_scsi_check_stop_free,
@@ -2351,7 +2143,6 @@
.write_pending = vhost_scsi_write_pending,
.write_pending_status = vhost_scsi_write_pending_status,
.set_default_node_attributes = vhost_scsi_set_default_node_attrs,
- .get_task_tag = vhost_scsi_get_task_tag,
.get_cmd_state = vhost_scsi_get_cmd_state,
.queue_data_in = vhost_scsi_queue_data_in,
.queue_status = vhost_scsi_queue_status,
@@ -2366,10 +2157,6 @@
.fabric_drop_tpg = vhost_scsi_drop_tpg,
.fabric_post_link = vhost_scsi_port_link,
.fabric_pre_unlink = vhost_scsi_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = vhost_scsi_make_nodeacl,
- .fabric_drop_nodeacl = vhost_scsi_drop_nodeacl,
.tfc_wwn_attrs = vhost_scsi_wwn_attrs,
.tfc_tpg_base_attrs = vhost_scsi_tpg_attrs,
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 2ee2826..9e8e004 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -36,6 +36,77 @@
#define vhost_used_event(vq) ((__virtio16 __user *)&vq->avail->ring[vq->num])
#define vhost_avail_event(vq) ((__virtio16 __user *)&vq->used->ring[vq->num])
+#ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY
+static void vhost_vq_reset_user_be(struct vhost_virtqueue *vq)
+{
+ vq->user_be = !virtio_legacy_is_little_endian();
+}
+
+static long vhost_set_vring_endian(struct vhost_virtqueue *vq, int __user *argp)
+{
+ struct vhost_vring_state s;
+
+ if (vq->private_data)
+ return -EBUSY;
+
+ if (copy_from_user(&s, argp, sizeof(s)))
+ return -EFAULT;
+
+ if (s.num != VHOST_VRING_LITTLE_ENDIAN &&
+ s.num != VHOST_VRING_BIG_ENDIAN)
+ return -EINVAL;
+
+ vq->user_be = s.num;
+
+ return 0;
+}
+
+static long vhost_get_vring_endian(struct vhost_virtqueue *vq, u32 idx,
+ int __user *argp)
+{
+ struct vhost_vring_state s = {
+ .index = idx,
+ .num = vq->user_be
+ };
+
+ if (copy_to_user(argp, &s, sizeof(s)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static void vhost_init_is_le(struct vhost_virtqueue *vq)
+{
+ /* Note for legacy virtio: user_be is initialized at reset time
+ * according to the host endianness. If userspace does not set an
+ * explicit endianness, the default behavior is native endian, as
+ * expected by legacy virtio.
+ */
+ vq->is_le = vhost_has_feature(vq, VIRTIO_F_VERSION_1) || !vq->user_be;
+}
+#else
+static void vhost_vq_reset_user_be(struct vhost_virtqueue *vq)
+{
+}
+
+static long vhost_set_vring_endian(struct vhost_virtqueue *vq, int __user *argp)
+{
+ return -ENOIOCTLCMD;
+}
+
+static long vhost_get_vring_endian(struct vhost_virtqueue *vq, u32 idx,
+ int __user *argp)
+{
+ return -ENOIOCTLCMD;
+}
+
+static void vhost_init_is_le(struct vhost_virtqueue *vq)
+{
+ if (vhost_has_feature(vq, VIRTIO_F_VERSION_1))
+ vq->is_le = true;
+}
+#endif /* CONFIG_VHOST_CROSS_ENDIAN_LEGACY */
+
static void vhost_poll_func(struct file *file, wait_queue_head_t *wqh,
poll_table *pt)
{
@@ -199,6 +270,8 @@
vq->call = NULL;
vq->log_ctx = NULL;
vq->memory = NULL;
+ vq->is_le = virtio_legacy_is_little_endian();
+ vhost_vq_reset_user_be(vq);
}
static int vhost_worker(void *data)
@@ -806,6 +879,12 @@
} else
filep = eventfp;
break;
+ case VHOST_SET_VRING_ENDIAN:
+ r = vhost_set_vring_endian(vq, argp);
+ break;
+ case VHOST_GET_VRING_ENDIAN:
+ r = vhost_get_vring_endian(vq, idx, argp);
+ break;
default:
r = -ENOIOCTLCMD;
}
@@ -1044,8 +1123,12 @@
{
__virtio16 last_used_idx;
int r;
- if (!vq->private_data)
+ if (!vq->private_data) {
+ vq->is_le = virtio_legacy_is_little_endian();
return 0;
+ }
+
+ vhost_init_is_le(vq);
r = vhost_update_used_flags(vq);
if (r)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 8c1c792..ce6f6da 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -106,6 +106,14 @@
/* Log write descriptors */
void __user *log_base;
struct vhost_log *log;
+
+ /* Ring endianness. Defaults to legacy native endianness.
+ * Set to true when starting a modern virtio device. */
+ bool is_le;
+#ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY
+ /* Ring endianness requested by userspace for cross-endian support. */
+ bool user_be;
+#endif
};
struct vhost_dev {
@@ -173,34 +181,39 @@
return vq->acked_features & (1ULL << bit);
}
+static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
+{
+ return vq->is_le;
+}
+
/* Memory accessors */
static inline u16 vhost16_to_cpu(struct vhost_virtqueue *vq, __virtio16 val)
{
- return __virtio16_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio16_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio16 cpu_to_vhost16(struct vhost_virtqueue *vq, u16 val)
{
- return __cpu_to_virtio16(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio16(vhost_is_little_endian(vq), val);
}
static inline u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val)
{
- return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio32_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val)
{
- return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio32(vhost_is_little_endian(vq), val);
}
static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val)
{
- return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio64_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio64 cpu_to_vhost64(struct vhost_virtqueue *vq, u64 val)
{
- return __cpu_to_virtio64(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio64(vhost_is_little_endian(vq), val);
}
#endif
diff --git a/drivers/video/fbdev/omap2/dss/dss.c b/drivers/video/fbdev/omap2/dss/dss.c
index 612b093..9200a86 100644
--- a/drivers/video/fbdev/omap2/dss/dss.c
+++ b/drivers/video/fbdev/omap2/dss/dss.c
@@ -1225,6 +1225,15 @@
{
struct component_match **match = data;
+ /*
+ * HACK
+ * We don't have a working driver for rfbi, so skip it here always.
+ * Otherwise dss will never get probed successfully, as it will wait
+ * for rfbi to get probed.
+ */
+ if (strstr(dev_name(dev), "rfbi"))
+ return 0;
+
component_match_add(dev->parent, match, dss_component_compare, dev);
return 0;
diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 86621fa..735355b 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -121,6 +121,7 @@
#define REG_3 0x0004a0
#define REG_4 0x000600
#define REG_6 0x000800
+#define REG_7 0x000804
#define REG_8 0x000820
#define REG_9 0x000a04
#define REG_10 0x018000
@@ -135,6 +136,8 @@
#define REG_21 0x200218
#define REG_22 0x0005a0
#define REG_23 0x0005c0
+#define REG_24 0x000808
+#define REG_25 0x000b00
#define REG_26 0x200118
#define REG_27 0x200308
#define REG_32 0x21003c
@@ -429,6 +432,9 @@
#define SET_LENXY_START_RECFILL(fb, lenxy) \
WRITE_WORD(lenxy, fb, REG_9)
+#define SETUP_COPYAREA(fb) \
+ WRITE_BYTE(0, fb, REG_16b1)
+
static void
HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
{
@@ -1004,6 +1010,36 @@
return 0;
}
+static void
+stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+ struct stifb_info *fb = container_of(info, struct stifb_info, info);
+
+ SETUP_COPYAREA(fb);
+
+ SETUP_HW(fb);
+ if (fb->info.var.bits_per_pixel == 32) {
+ WRITE_WORD(0xBBA0A000, fb, REG_10);
+
+ NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff);
+ } else {
+ WRITE_WORD(fb->id == S9000_ID_HCRX ? 0x13a02000 : 0x13a01000, fb, REG_10);
+
+ NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xff);
+ }
+
+ NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb,
+ IBOvals(RopSrc, MaskAddrOffset(0),
+ BitmapExtent08, StaticReg(1),
+ DataDynamic, MaskOtc, BGx(0), FGx(0)));
+
+ WRITE_WORD(((area->sx << 16) | area->sy), fb, REG_24);
+ WRITE_WORD(((area->width << 16) | area->height), fb, REG_7);
+ WRITE_WORD(((area->dx << 16) | area->dy), fb, REG_25);
+
+ SETUP_FB(fb);
+}
+
static void __init
stifb_init_display(struct stifb_info *fb)
{
@@ -1069,7 +1105,7 @@
.fb_setcolreg = stifb_setcolreg,
.fb_blank = stifb_blank,
.fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
+ .fb_copyarea = stifb_copyarea,
.fb_imageblit = cfb_imageblit,
};
@@ -1258,7 +1294,7 @@
info->fbops = &stifb_ops;
info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
info->screen_size = fix->smem_len;
- info->flags = FBINFO_DEFAULT;
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
info->pseudo_palette = &fb->pseudo_palette;
/* This has to be done !!! */
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 5447b81..78f804a 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -507,10 +507,6 @@
if (rc)
goto err_enable_device;
- rc = pci_request_regions(pci_dev, "virtio-pci");
- if (rc)
- goto err_request_regions;
-
if (force_legacy) {
rc = virtio_pci_legacy_probe(vp_dev);
/* Also try modern mode if we can't map BAR0 (no IO space). */
@@ -540,8 +536,6 @@
else
virtio_pci_modern_remove(vp_dev);
err_probe:
- pci_release_regions(pci_dev);
-err_request_regions:
pci_disable_device(pci_dev);
err_enable_device:
kfree(vp_dev);
@@ -559,7 +553,6 @@
else
virtio_pci_modern_remove(vp_dev);
- pci_release_regions(pci_dev);
pci_disable_device(pci_dev);
}
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index 28ee4e5..b976d96 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -75,6 +75,8 @@
/* Multiply queue_notify_off by this value. (non-legacy mode). */
u32 notify_offset_multiplier;
+ int modern_bars;
+
/* Legacy only field */
/* the IO mapping for the PCI config space */
void __iomem *ioaddr;
diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
index 256a527..48bc979 100644
--- a/drivers/virtio/virtio_pci_legacy.c
+++ b/drivers/virtio/virtio_pci_legacy.c
@@ -215,6 +215,7 @@
int virtio_pci_legacy_probe(struct virtio_pci_device *vp_dev)
{
struct pci_dev *pci_dev = vp_dev->pci_dev;
+ int rc;
/* We only own devices >= 0x1000 and <= 0x103f: leave the rest. */
if (pci_dev->device < 0x1000 || pci_dev->device > 0x103f)
@@ -226,9 +227,14 @@
return -ENODEV;
}
+ rc = pci_request_region(pci_dev, 0, "virtio-pci-legacy");
+ if (rc)
+ return rc;
+
+ rc = -ENOMEM;
vp_dev->ioaddr = pci_iomap(pci_dev, 0, 0);
if (!vp_dev->ioaddr)
- return -ENOMEM;
+ goto err_iomap;
vp_dev->isr = vp_dev->ioaddr + VIRTIO_PCI_ISR;
@@ -246,6 +252,10 @@
vp_dev->del_vq = del_vq;
return 0;
+
+err_iomap:
+ pci_release_region(pci_dev, 0);
+ return rc;
}
void virtio_pci_legacy_remove(struct virtio_pci_device *vp_dev)
@@ -253,4 +263,5 @@
struct pci_dev *pci_dev = vp_dev->pci_dev;
pci_iounmap(pci_dev, vp_dev->ioaddr);
+ pci_release_region(pci_dev, 0);
}
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index e88e099..8e5cf19 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -499,7 +499,7 @@
* Returns offset of the capability, or 0.
*/
static inline int virtio_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
- u32 ioresource_types)
+ u32 ioresource_types, int *bars)
{
int pos;
@@ -520,8 +520,10 @@
if (type == cfg_type) {
if (pci_resource_len(dev, bar) &&
- pci_resource_flags(dev, bar) & ioresource_types)
+ pci_resource_flags(dev, bar) & ioresource_types) {
+ *bars |= (1 << bar);
return pos;
+ }
}
}
return 0;
@@ -617,7 +619,8 @@
/* check for a common config: if not, use legacy mode (bar 0). */
common = virtio_pci_find_capability(pci_dev, VIRTIO_PCI_CAP_COMMON_CFG,
- IORESOURCE_IO | IORESOURCE_MEM);
+ IORESOURCE_IO | IORESOURCE_MEM,
+ &vp_dev->modern_bars);
if (!common) {
dev_info(&pci_dev->dev,
"virtio_pci: leaving for legacy driver\n");
@@ -626,9 +629,11 @@
/* If common is there, these should be too... */
isr = virtio_pci_find_capability(pci_dev, VIRTIO_PCI_CAP_ISR_CFG,
- IORESOURCE_IO | IORESOURCE_MEM);
+ IORESOURCE_IO | IORESOURCE_MEM,
+ &vp_dev->modern_bars);
notify = virtio_pci_find_capability(pci_dev, VIRTIO_PCI_CAP_NOTIFY_CFG,
- IORESOURCE_IO | IORESOURCE_MEM);
+ IORESOURCE_IO | IORESOURCE_MEM,
+ &vp_dev->modern_bars);
if (!isr || !notify) {
dev_err(&pci_dev->dev,
"virtio_pci: missing capabilities %i/%i/%i\n",
@@ -640,7 +645,13 @@
* device-specific configuration.
*/
device = virtio_pci_find_capability(pci_dev, VIRTIO_PCI_CAP_DEVICE_CFG,
- IORESOURCE_IO | IORESOURCE_MEM);
+ IORESOURCE_IO | IORESOURCE_MEM,
+ &vp_dev->modern_bars);
+
+ err = pci_request_selected_regions(pci_dev, vp_dev->modern_bars,
+ "virtio-pci-modern");
+ if (err)
+ return err;
err = -EINVAL;
vp_dev->common = map_capability(pci_dev, common,
@@ -727,4 +738,5 @@
pci_iounmap(pci_dev, vp_dev->notify_base);
pci_iounmap(pci_dev, vp_dev->isr);
pci_iounmap(pci_dev, vp_dev->common);
+ pci_release_selected_regions(pci_dev, vp_dev->modern_bars);
}
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 39223c3..9eeefd7 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -53,7 +53,6 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_configfs.h>
#include <target/target_core_fabric_configfs.h>
#include <asm/hypervisor.h>
@@ -201,8 +200,6 @@
static DEFINE_MUTEX(scsiback_mutex);
static LIST_HEAD(scsiback_list);
-static const struct target_core_fabric_ops scsiback_ops;
-
static void scsiback_get(struct vscsibk_info *info)
{
atomic_inc(&info->nr_unreplied_reqs);
@@ -397,6 +394,7 @@
memset(se_cmd, 0, sizeof(*se_cmd));
scsiback_get(pending_req->info);
+ se_cmd->tag = pending_req->rqid;
rc = target_submit_cmd_map_sgls(se_cmd, sess, pending_req->cmnd,
pending_req->sense_buffer, pending_req->v2p->lun,
pending_req->data_len, 0,
@@ -863,7 +861,8 @@
struct list_head *head = &(info->v2p_entry_lists);
unsigned long flags;
char *lunp;
- unsigned int lun;
+ unsigned long long unpacked_lun;
+ struct se_lun *se_lun;
struct scsiback_tpg *tpg_entry, *tpg = NULL;
char *error = "doesn't exist";
@@ -874,24 +873,27 @@
}
*lunp = 0;
lunp++;
- if (kstrtouint(lunp, 10, &lun) || lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
+ err = kstrtoull(lunp, 10, &unpacked_lun);
+ if (err < 0) {
pr_err("lun number not valid: %s\n", lunp);
- return -EINVAL;
+ return err;
}
mutex_lock(&scsiback_mutex);
list_for_each_entry(tpg_entry, &scsiback_list, tv_tpg_list) {
if (!strcmp(phy, tpg_entry->tport->tport_name) ||
!strcmp(phy, tpg_entry->param_alias)) {
- spin_lock(&tpg_entry->se_tpg.tpg_lun_lock);
- if (tpg_entry->se_tpg.tpg_lun_list[lun]->lun_status ==
- TRANSPORT_LUN_STATUS_ACTIVE) {
- if (!tpg_entry->tpg_nexus)
- error = "nexus undefined";
- else
- tpg = tpg_entry;
+ mutex_lock(&tpg_entry->se_tpg.tpg_lun_mutex);
+ hlist_for_each_entry(se_lun, &tpg_entry->se_tpg.tpg_lun_hlist, link) {
+ if (se_lun->unpacked_lun == unpacked_lun) {
+ if (!tpg_entry->tpg_nexus)
+ error = "nexus undefined";
+ else
+ tpg = tpg_entry;
+ break;
+ }
}
- spin_unlock(&tpg_entry->se_tpg.tpg_lun_lock);
+ mutex_unlock(&tpg_entry->se_tpg.tpg_lun_mutex);
break;
}
}
@@ -903,7 +905,7 @@
mutex_unlock(&scsiback_mutex);
if (!tpg) {
- pr_err("%s:%d %s\n", phy, lun, error);
+ pr_err("%s:%llu %s\n", phy, unpacked_lun, error);
return -ENODEV;
}
@@ -931,7 +933,7 @@
kref_init(&new->kref);
new->v = *v;
new->tpg = tpg;
- new->lun = lun;
+ new->lun = unpacked_lun;
list_add_tail(&new->l, head);
out:
@@ -1251,28 +1253,6 @@
return "Unknown";
}
-static u8 scsiback_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
-}
-
static char *scsiback_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct scsiback_tpg *tpg = container_of(se_tpg,
@@ -1289,102 +1269,6 @@
return tpg->tport_tpgt;
}
-static u32 scsiback_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32
-scsiback_get_pr_transport_id(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32
-scsiback_get_pr_transport_id_len(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-static char *
-scsiback_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct scsiback_tpg *tpg = container_of(se_tpg,
- struct scsiback_tpg, se_tpg);
- struct scsiback_tport *tport = tpg->tport;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tport_proto_id: 0x%02x, using SAS emulation\n",
- tport->tport_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
-}
-
static struct se_wwn *
scsiback_make_tport(struct target_fabric_configfs *tf,
struct config_group *group,
@@ -1451,19 +1335,6 @@
kfree(tport);
}
-static struct se_node_acl *
-scsiback_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- return kzalloc(sizeof(struct se_node_acl), GFP_KERNEL);
-}
-
-static void
-scsiback_release_fabric_acl(struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- kfree(se_nacl);
-}
-
static u32 scsiback_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1522,14 +1393,6 @@
{
}
-static u32 scsiback_get_task_tag(struct se_cmd *se_cmd)
-{
- struct vscsibk_pend *pending_req = container_of(se_cmd,
- struct vscsibk_pend, se_cmd);
-
- return pending_req->rqid;
-}
-
static int scsiback_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1898,8 +1761,7 @@
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&scsiback_ops, wwn,
- &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tpg->se_tpg, tport->tport_proto_id);
if (ret < 0) {
kfree(tpg);
return NULL;
@@ -1944,23 +1806,15 @@
.module = THIS_MODULE,
.name = "xen-pvscsi",
.get_fabric_name = scsiback_get_fabric_name,
- .get_fabric_proto_ident = scsiback_get_fabric_proto_ident,
.tpg_get_wwn = scsiback_get_fabric_wwn,
.tpg_get_tag = scsiback_get_tag,
- .tpg_get_default_depth = scsiback_get_default_depth,
- .tpg_get_pr_transport_id = scsiback_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = scsiback_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = scsiback_parse_pr_out_transport_id,
.tpg_check_demo_mode = scsiback_check_true,
.tpg_check_demo_mode_cache = scsiback_check_true,
.tpg_check_demo_mode_write_protect = scsiback_check_false,
.tpg_check_prod_mode_write_protect = scsiback_check_false,
- .tpg_alloc_fabric_acl = scsiback_alloc_fabric_acl,
- .tpg_release_fabric_acl = scsiback_release_fabric_acl,
.tpg_get_inst_index = scsiback_tpg_get_inst_index,
.check_stop_free = scsiback_check_stop_free,
.release_cmd = scsiback_release_cmd,
- .put_session = NULL,
.shutdown_session = scsiback_shutdown_session,
.close_session = scsiback_close_session,
.sess_get_index = scsiback_sess_get_index,
@@ -1968,7 +1822,6 @@
.write_pending = scsiback_write_pending,
.write_pending_status = scsiback_write_pending_status,
.set_default_node_attributes = scsiback_set_default_node_attrs,
- .get_task_tag = scsiback_get_task_tag,
.get_cmd_state = scsiback_get_cmd_state,
.queue_data_in = scsiback_queue_data_in,
.queue_status = scsiback_queue_status,
@@ -1983,12 +1836,6 @@
.fabric_drop_tpg = scsiback_drop_tpg,
.fabric_post_link = scsiback_port_link,
.fabric_pre_unlink = scsiback_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
-#if 0
- .fabric_make_nodeacl = scsiback_make_nodeacl,
- .fabric_drop_nodeacl = scsiback_drop_nodeacl,
-#endif
.tfc_wwn_attrs = scsiback_wwn_attrs,
.tfc_tpg_base_attrs = scsiback_tpg_attrs,
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 510040b..b1dc518 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -540,8 +540,7 @@
unlock_new_inode(inode);
return inode;
error:
- unlock_new_inode(inode);
- iput(inode);
+ iget_failed(inode);
return ERR_PTR(retval);
}
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 09e44337..e8aa57d 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -149,8 +149,7 @@
unlock_new_inode(inode);
return inode;
error:
- unlock_new_inode(inode);
- iput(inode);
+ iget_failed(inode);
return ERR_PTR(retval);
}
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index cffe837..c69a87e 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -64,7 +64,7 @@
/* short cut to get to the affs specific inode data */
static inline struct affs_inode_info *AFFS_I(struct inode *inode)
{
- return list_entry(inode, struct affs_inode_info, vfs_inode);
+ return container_of(inode, struct affs_inode_info, vfs_inode);
}
/*
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 5b700ef..c37149b 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -238,11 +238,6 @@
return d_inode(sbi->sb->s_root)->i_ino;
}
-static inline int simple_positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
static inline void __autofs4_add_expiring(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
diff --git a/fs/befs/befs.h b/fs/befs/befs.h
index 1fead8d..35d19e8 100644
--- a/fs/befs/befs.h
+++ b/fs/befs/befs.h
@@ -112,7 +112,7 @@
static inline struct befs_inode_info *
BEFS_I(const struct inode *inode)
{
- return list_entry(inode, struct befs_inode_info, vfs_inode);
+ return container_of(inode, struct befs_inode_info, vfs_inode);
}
static inline befs_blocknr_t
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index cd46e41..6b65996 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1530,7 +1530,7 @@
file = vma->vm_file;
if (!file)
continue;
- filename = d_path(&file->f_path, name_curpos, remaining);
+ filename = file_path(file, name_curpos, remaining);
if (IS_ERR(filename)) {
if (PTR_ERR(filename) == -ENAMETOOLONG) {
vfree(data);
@@ -1540,7 +1540,7 @@
continue;
}
- /* d_path() fills at the end, move name down */
+ /* file_path() fills at the end, move name down */
/* n = strlen(filename) + 1: */
n = (name_curpos + remaining) - filename;
remaining = filename - name_curpos;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4fe10f9..1982437 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -152,6 +152,9 @@
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
+ if (IS_DAX(inode))
+ return dax_do_io(iocb, inode, iter, offset, blkdev_get_block,
+ NULL, DIO_SKIP_DIO_COUNT);
return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter, offset,
blkdev_get_block, NULL, NULL,
DIO_SKIP_DIO_COUNT);
@@ -443,6 +446,12 @@
long avail;
const struct block_device_operations *ops = bdev->bd_disk->fops;
+ /*
+ * The device driver is allowed to sleep, in order to make the
+ * memory directly accessible.
+ */
+ might_sleep();
+
if (size < 0)
return size;
if (!ops->direct_access)
@@ -1170,6 +1179,7 @@
bdev->bd_disk = disk;
bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
+ bdev->bd_inode->i_flags = disk->fops->direct_access ? S_DAX : 0;
if (!partno) {
ret = -ENXIO;
bdev->bd_part = disk_get_part(disk, partno);
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 0ef5cc1..81220b2 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -44,6 +44,8 @@
#define BTRFS_INODE_IN_DELALLOC_LIST 9
#define BTRFS_INODE_READDIO_NEED_LOCK 10
#define BTRFS_INODE_HAS_PROPS 11
+/* DIO is ready to submit */
+#define BTRFS_INODE_DIO_READY 12
/*
* The following 3 bits are meant only for the btree inode.
* When any of them is set, it means an error happened while writing an
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 80a9aef..aac314e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1778,6 +1778,7 @@
spinlock_t unused_bgs_lock;
struct list_head unused_bgs;
struct mutex unused_bg_unpin_mutex;
+ struct mutex delete_unused_bgs_mutex;
/* For btrfs to record security options */
struct security_mnt_opts security_opts;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3f43bfea..a9aadb2 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1751,6 +1751,7 @@
{
struct btrfs_root *root = arg;
int again;
+ struct btrfs_trans_handle *trans;
do {
again = 0;
@@ -1772,7 +1773,6 @@
}
btrfs_run_delayed_iputs(root);
- btrfs_delete_unused_bgs(root->fs_info);
again = btrfs_clean_one_deleted_snapshot(root);
mutex_unlock(&root->fs_info->cleaner_mutex);
@@ -1781,6 +1781,16 @@
* needn't do anything special here.
*/
btrfs_run_defrag_inodes(root->fs_info);
+
+ /*
+ * Acquires fs_info->delete_unused_bgs_mutex to avoid racing
+ * with relocation (btrfs_relocate_chunk) and relocation
+ * acquires fs_info->cleaner_mutex (btrfs_relocate_block_group)
+ * after acquiring fs_info->delete_unused_bgs_mutex. So we
+ * can't hold, nor need to, fs_info->cleaner_mutex when deleting
+ * unused block groups.
+ */
+ btrfs_delete_unused_bgs(root->fs_info);
sleep:
if (!try_to_freeze() && !again) {
set_current_state(TASK_INTERRUPTIBLE);
@@ -1789,6 +1799,34 @@
__set_current_state(TASK_RUNNING);
}
} while (!kthread_should_stop());
+
+ /*
+ * Transaction kthread is stopped before us and wakes us up.
+ * However we might have started a new transaction and COWed some
+ * tree blocks when deleting unused block groups for example. So
+ * make sure we commit the transaction we started to have a clean
+ * shutdown when evicting the btree inode - if it has dirty pages
+ * when we do the final iput() on it, eviction will trigger a
+ * writeback for it which will fail with null pointer dereferences
+ * since work queues and other resources were already released and
+ * destroyed by the time the iput/eviction/writeback is made.
+ */
+ trans = btrfs_attach_transaction(root);
+ if (IS_ERR(trans)) {
+ if (PTR_ERR(trans) != -ENOENT)
+ btrfs_err(root->fs_info,
+ "cleaner transaction attach returned %ld",
+ PTR_ERR(trans));
+ } else {
+ int ret;
+
+ ret = btrfs_commit_transaction(trans, root);
+ if (ret)
+ btrfs_err(root->fs_info,
+ "cleaner open transaction commit returned %d",
+ ret);
+ }
+
return 0;
}
@@ -2492,6 +2530,7 @@
spin_lock_init(&fs_info->unused_bgs_lock);
rwlock_init(&fs_info->tree_mod_log_lock);
mutex_init(&fs_info->unused_bg_unpin_mutex);
+ mutex_init(&fs_info->delete_unused_bgs_mutex);
mutex_init(&fs_info->reloc_mutex);
mutex_init(&fs_info->delalloc_root_mutex);
seqlock_init(&fs_info->profiles_lock);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 38b76cc..1c2bd17 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9889,6 +9889,8 @@
}
spin_unlock(&fs_info->unused_bgs_lock);
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
+
/* Don't want to race with allocators so take the groups_sem */
down_write(&space_info->groups_sem);
spin_lock(&block_group->lock);
@@ -9983,6 +9985,7 @@
end_trans:
btrfs_end_transaction(trans, root);
next:
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_put_block_group(block_group);
spin_lock(&fs_info->unused_bgs_lock);
}
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 795d754..b823fac 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1748,7 +1748,7 @@
}
current->backing_dev_info = inode_to_bdi(inode);
- err = file_remove_suid(file);
+ err = file_remove_privs(file);
if (err) {
mutex_unlock(&inode->i_mutex);
goto out;
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index f6a596d..d4a582a 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -246,6 +246,7 @@
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct rb_root *rbroot = &root->free_ino_pinned->free_space_offset;
+ spinlock_t *rbroot_lock = &root->free_ino_pinned->tree_lock;
struct btrfs_free_space *info;
struct rb_node *n;
u64 count;
@@ -254,24 +255,30 @@
return;
while (1) {
+ bool add_to_ctl = true;
+
+ spin_lock(rbroot_lock);
n = rb_first(rbroot);
- if (!n)
+ if (!n) {
+ spin_unlock(rbroot_lock);
break;
+ }
info = rb_entry(n, struct btrfs_free_space, offset_index);
BUG_ON(info->bitmap); /* Logic error */
if (info->offset > root->ino_cache_progress)
- goto free;
+ add_to_ctl = false;
else if (info->offset + info->bytes > root->ino_cache_progress)
count = root->ino_cache_progress - info->offset + 1;
else
count = info->bytes;
- __btrfs_add_free_space(ctl, info->offset, count);
-free:
rb_erase(&info->offset_index, rbroot);
- kfree(info);
+ spin_unlock(rbroot_lock);
+ if (add_to_ctl)
+ __btrfs_add_free_space(ctl, info->offset, count);
+ kmem_cache_free(btrfs_free_space_cachep, info);
}
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 855935f..b33c0cf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4989,8 +4989,9 @@
/*
* Keep looping until we have no more ranges in the io tree.
* We can have ongoing bios started by readpages (called from readahead)
- * that didn't get their end io callbacks called yet or they are still
- * in progress ((extent_io.c:end_bio_extent_readpage()). This means some
+ * that have their endio callback (extent_io.c:end_bio_extent_readpage)
+ * still in progress (unlocked the pages in the bio but did not yet
+ * unlocked the ranges in the io tree). Therefore this means some
* ranges can still be locked and eviction started because before
* submitting those bios, which are executed by a separate task (work
* queue kthread), inode references (inode->i_count) were not taken
@@ -7546,6 +7547,7 @@
current->journal_info = outstanding_extents;
btrfs_free_reserved_data_space(inode, len);
+ set_bit(BTRFS_INODE_DIO_READY, &BTRFS_I(inode)->runtime_flags);
}
/*
@@ -7871,8 +7873,6 @@
struct bio *dio_bio;
int ret;
- if (err)
- goto out_done;
again:
ret = btrfs_dec_test_first_ordered_pending(inode, &ordered,
&ordered_offset,
@@ -7895,7 +7895,6 @@
ordered = NULL;
goto again;
}
-out_done:
dio_bio = dip->dio_bio;
kfree(dip);
@@ -8163,9 +8162,8 @@
static void btrfs_submit_direct(int rw, struct bio *dio_bio,
struct inode *inode, loff_t file_offset)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_dio_private *dip;
- struct bio *io_bio;
+ struct btrfs_dio_private *dip = NULL;
+ struct bio *io_bio = NULL;
struct btrfs_io_bio *btrfs_bio;
int skip_sum;
int write = rw & REQ_WRITE;
@@ -8182,7 +8180,7 @@
dip = kzalloc(sizeof(*dip), GFP_NOFS);
if (!dip) {
ret = -ENOMEM;
- goto free_io_bio;
+ goto free_ordered;
}
dip->private = dio_bio->bi_private;
@@ -8210,25 +8208,55 @@
if (btrfs_bio->end_io)
btrfs_bio->end_io(btrfs_bio, ret);
-free_io_bio:
- bio_put(io_bio);
free_ordered:
/*
- * If this is a write, we need to clean up the reserved space and kill
- * the ordered extent.
+ * If we arrived here it means either we failed to submit the dip
+ * or we either failed to clone the dio_bio or failed to allocate the
+ * dip. If we cloned the dio_bio and allocated the dip, we can just
+ * call bio_endio against our io_bio so that we get proper resource
+ * cleanup if we fail to submit the dip, otherwise, we must do the
+ * same as btrfs_endio_direct_[write|read] because we can't call these
+ * callbacks - they require an allocated dip and a clone of dio_bio.
*/
- if (write) {
- struct btrfs_ordered_extent *ordered;
- ordered = btrfs_lookup_ordered_extent(inode, file_offset);
- if (!test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags) &&
- !test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags))
- btrfs_free_reserved_extent(root, ordered->start,
- ordered->disk_len, 1);
- btrfs_put_ordered_extent(ordered);
- btrfs_put_ordered_extent(ordered);
+ if (io_bio && dip) {
+ bio_endio(io_bio, ret);
+ /*
+ * The end io callbacks free our dip, do the final put on io_bio
+ * and all the cleanup and final put for dio_bio (through
+ * dio_end_io()).
+ */
+ dip = NULL;
+ io_bio = NULL;
+ } else {
+ if (write) {
+ struct btrfs_ordered_extent *ordered;
+
+ ordered = btrfs_lookup_ordered_extent(inode,
+ file_offset);
+ set_bit(BTRFS_ORDERED_IOERR, &ordered->flags);
+ /*
+ * Decrements our ref on the ordered extent and removes
+ * the ordered extent from the inode's ordered tree,
+ * doing all the proper resource cleanup such as for the
+ * reserved space and waking up any waiters for this
+ * ordered extent (through btrfs_remove_ordered_extent).
+ */
+ btrfs_finish_ordered_io(ordered);
+ } else {
+ unlock_extent(&BTRFS_I(inode)->io_tree, file_offset,
+ file_offset + dio_bio->bi_iter.bi_size - 1);
+ }
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ /*
+ * Releases and cleans up our dio_bio, no need to bio_put()
+ * nor bio_endio()/bio_io_error() against dio_bio.
+ */
+ dio_end_io(dio_bio, ret);
}
- bio_endio(dio_bio, ret);
+ if (io_bio)
+ bio_put(io_bio);
+ kfree(dip);
}
static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb,
@@ -8330,9 +8358,18 @@
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
current->journal_info = NULL;
- if (ret < 0 && ret != -EIOCBQUEUED)
- btrfs_delalloc_release_space(inode, count);
- else if (ret >= 0 && (size_t)ret < count)
+ if (ret < 0 && ret != -EIOCBQUEUED) {
+ /*
+ * If the error comes from submitting stage,
+ * btrfs_get_blocsk_direct() has free'd data space,
+ * and metadata space will be handled by
+ * finish_ordered_fn, don't do that again to make
+ * sure bytes_may_use is correct.
+ */
+ if (!test_and_clear_bit(BTRFS_INODE_DIO_READY,
+ &BTRFS_I(inode)->runtime_flags))
+ btrfs_delalloc_release_space(inode, count);
+ } else if (ret >= 0 && (size_t)ret < count)
btrfs_delalloc_release_space(inode,
count - (size_t)ret);
}
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index c86b835..5d91776 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -87,7 +87,8 @@
static int btrfs_clone(struct inode *src, struct inode *inode,
- u64 off, u64 olen, u64 olen_aligned, u64 destoff);
+ u64 off, u64 olen, u64 olen_aligned, u64 destoff,
+ int no_time_update);
/* Mask out flags that are inappropriate for the given type of inode. */
static inline __u32 btrfs_mask_flags(umode_t mode, __u32 flags)
@@ -2765,14 +2766,11 @@
return ret;
}
-static struct page *extent_same_get_page(struct inode *inode, u64 off)
+static struct page *extent_same_get_page(struct inode *inode, pgoff_t index)
{
struct page *page;
- pgoff_t index;
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
- index = off >> PAGE_CACHE_SHIFT;
-
page = grab_cache_page(inode->i_mapping, index);
if (!page)
return NULL;
@@ -2793,6 +2791,20 @@
return page;
}
+static int gather_extent_pages(struct inode *inode, struct page **pages,
+ int num_pages, u64 off)
+{
+ int i;
+ pgoff_t index = off >> PAGE_CACHE_SHIFT;
+
+ for (i = 0; i < num_pages; i++) {
+ pages[i] = extent_same_get_page(inode, index + i);
+ if (!pages[i])
+ return -ENOMEM;
+ }
+ return 0;
+}
+
static inline void lock_extent_range(struct inode *inode, u64 off, u64 len)
{
/* do any pending delalloc/csum calc on src, one way or
@@ -2818,52 +2830,120 @@
}
}
-static void btrfs_double_unlock(struct inode *inode1, u64 loff1,
- struct inode *inode2, u64 loff2, u64 len)
+static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2)
{
- unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, loff1 + len - 1);
- unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
-
mutex_unlock(&inode1->i_mutex);
mutex_unlock(&inode2->i_mutex);
}
-static void btrfs_double_lock(struct inode *inode1, u64 loff1,
- struct inode *inode2, u64 loff2, u64 len)
+static void btrfs_double_inode_lock(struct inode *inode1, struct inode *inode2)
+{
+ if (inode1 < inode2)
+ swap(inode1, inode2);
+
+ mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
+ if (inode1 != inode2)
+ mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+}
+
+static void btrfs_double_extent_unlock(struct inode *inode1, u64 loff1,
+ struct inode *inode2, u64 loff2, u64 len)
+{
+ unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, loff1 + len - 1);
+ unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
+}
+
+static void btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
+ struct inode *inode2, u64 loff2, u64 len)
{
if (inode1 < inode2) {
swap(inode1, inode2);
swap(loff1, loff2);
}
-
- mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
lock_extent_range(inode1, loff1, len);
- if (inode1 != inode2) {
- mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+ if (inode1 != inode2)
lock_extent_range(inode2, loff2, len);
+}
+
+struct cmp_pages {
+ int num_pages;
+ struct page **src_pages;
+ struct page **dst_pages;
+};
+
+static void btrfs_cmp_data_free(struct cmp_pages *cmp)
+{
+ int i;
+ struct page *pg;
+
+ for (i = 0; i < cmp->num_pages; i++) {
+ pg = cmp->src_pages[i];
+ if (pg)
+ page_cache_release(pg);
+ pg = cmp->dst_pages[i];
+ if (pg)
+ page_cache_release(pg);
}
+ kfree(cmp->src_pages);
+ kfree(cmp->dst_pages);
+}
+
+static int btrfs_cmp_data_prepare(struct inode *src, u64 loff,
+ struct inode *dst, u64 dst_loff,
+ u64 len, struct cmp_pages *cmp)
+{
+ int ret;
+ int num_pages = PAGE_CACHE_ALIGN(len) >> PAGE_CACHE_SHIFT;
+ struct page **src_pgarr, **dst_pgarr;
+
+ /*
+ * We must gather up all the pages before we initiate our
+ * extent locking. We use an array for the page pointers. Size
+ * of the array is bounded by len, which is in turn bounded by
+ * BTRFS_MAX_DEDUPE_LEN.
+ */
+ src_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);
+ dst_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);
+ if (!src_pgarr || !dst_pgarr) {
+ kfree(src_pgarr);
+ kfree(dst_pgarr);
+ return -ENOMEM;
+ }
+ cmp->num_pages = num_pages;
+ cmp->src_pages = src_pgarr;
+ cmp->dst_pages = dst_pgarr;
+
+ ret = gather_extent_pages(src, cmp->src_pages, cmp->num_pages, loff);
+ if (ret)
+ goto out;
+
+ ret = gather_extent_pages(dst, cmp->dst_pages, cmp->num_pages, dst_loff);
+
+out:
+ if (ret)
+ btrfs_cmp_data_free(cmp);
+ return 0;
}
static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
- u64 dst_loff, u64 len)
+ u64 dst_loff, u64 len, struct cmp_pages *cmp)
{
int ret = 0;
+ int i;
struct page *src_page, *dst_page;
unsigned int cmp_len = PAGE_CACHE_SIZE;
void *addr, *dst_addr;
+ i = 0;
while (len) {
if (len < PAGE_CACHE_SIZE)
cmp_len = len;
- src_page = extent_same_get_page(src, loff);
- if (!src_page)
- return -EINVAL;
- dst_page = extent_same_get_page(dst, dst_loff);
- if (!dst_page) {
- page_cache_release(src_page);
- return -EINVAL;
- }
+ BUG_ON(i >= cmp->num_pages);
+
+ src_page = cmp->src_pages[i];
+ dst_page = cmp->dst_pages[i];
+
addr = kmap_atomic(src_page);
dst_addr = kmap_atomic(dst_page);
@@ -2875,15 +2955,12 @@
kunmap_atomic(addr);
kunmap_atomic(dst_addr);
- page_cache_release(src_page);
- page_cache_release(dst_page);
if (ret)
break;
- loff += cmp_len;
- dst_loff += cmp_len;
len -= cmp_len;
+ i++;
}
return ret;
@@ -2914,27 +2991,62 @@
{
int ret;
u64 len = olen;
+ struct cmp_pages cmp;
+ int same_inode = 0;
+ u64 same_lock_start = 0;
+ u64 same_lock_len = 0;
- /*
- * btrfs_clone() can't handle extents in the same file
- * yet. Once that works, we can drop this check and replace it
- * with a check for the same inode, but overlapping extents.
- */
if (src == dst)
- return -EINVAL;
+ same_inode = 1;
if (len == 0)
return 0;
- btrfs_double_lock(src, loff, dst, dst_loff, len);
+ if (same_inode) {
+ mutex_lock(&src->i_mutex);
- ret = extent_same_check_offsets(src, loff, &len, olen);
- if (ret)
- goto out_unlock;
+ ret = extent_same_check_offsets(src, loff, &len, olen);
+ if (ret)
+ goto out_unlock;
- ret = extent_same_check_offsets(dst, dst_loff, &len, olen);
- if (ret)
- goto out_unlock;
+ /*
+ * Single inode case wants the same checks, except we
+ * don't want our length pushed out past i_size as
+ * comparing that data range makes no sense.
+ *
+ * extent_same_check_offsets() will do this for an
+ * unaligned length at i_size, so catch it here and
+ * reject the request.
+ *
+ * This effectively means we require aligned extents
+ * for the single-inode case, whereas the other cases
+ * allow an unaligned length so long as it ends at
+ * i_size.
+ */
+ if (len != olen) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ /* Check for overlapping ranges */
+ if (dst_loff + len > loff && dst_loff < loff + len) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ same_lock_start = min_t(u64, loff, dst_loff);
+ same_lock_len = max_t(u64, loff, dst_loff) + len - same_lock_start;
+ } else {
+ btrfs_double_inode_lock(src, dst);
+
+ ret = extent_same_check_offsets(src, loff, &len, olen);
+ if (ret)
+ goto out_unlock;
+
+ ret = extent_same_check_offsets(dst, dst_loff, &len, olen);
+ if (ret)
+ goto out_unlock;
+ }
/* don't make the dst file partly checksummed */
if ((BTRFS_I(src)->flags & BTRFS_INODE_NODATASUM) !=
@@ -2943,12 +3055,32 @@
goto out_unlock;
}
- ret = btrfs_cmp_data(src, loff, dst, dst_loff, len);
- if (ret == 0)
- ret = btrfs_clone(src, dst, loff, olen, len, dst_loff);
+ ret = btrfs_cmp_data_prepare(src, loff, dst, dst_loff, olen, &cmp);
+ if (ret)
+ goto out_unlock;
+ if (same_inode)
+ lock_extent_range(src, same_lock_start, same_lock_len);
+ else
+ btrfs_double_extent_lock(src, loff, dst, dst_loff, len);
+
+ /* pass original length for comparison so we stay within i_size */
+ ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp);
+ if (ret == 0)
+ ret = btrfs_clone(src, dst, loff, olen, len, dst_loff, 1);
+
+ if (same_inode)
+ unlock_extent(&BTRFS_I(src)->io_tree, same_lock_start,
+ same_lock_start + same_lock_len - 1);
+ else
+ btrfs_double_extent_unlock(src, loff, dst, dst_loff, len);
+
+ btrfs_cmp_data_free(&cmp);
out_unlock:
- btrfs_double_unlock(src, loff, dst, dst_loff, len);
+ if (same_inode)
+ mutex_unlock(&src->i_mutex);
+ else
+ btrfs_double_inode_unlock(src, dst);
return ret;
}
@@ -3100,13 +3232,15 @@
struct inode *inode,
u64 endoff,
const u64 destoff,
- const u64 olen)
+ const u64 olen,
+ int no_time_update)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
inode_inc_iversion(inode);
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ if (!no_time_update)
+ inode->i_mtime = inode->i_ctime = CURRENT_TIME;
/*
* We round up to the block size at eof when determining which
* extents to clone above, but shouldn't round up the file size.
@@ -3191,13 +3325,13 @@
* @inode: Inode to clone to
* @off: Offset within source to start clone from
* @olen: Original length, passed by user, of range to clone
- * @olen_aligned: Block-aligned value of olen, extent_same uses
- * identical values here
+ * @olen_aligned: Block-aligned value of olen
* @destoff: Offset within @inode to start clone
+ * @no_time_update: Whether to update mtime/ctime on the target inode
*/
static int btrfs_clone(struct inode *src, struct inode *inode,
const u64 off, const u64 olen, const u64 olen_aligned,
- const u64 destoff)
+ const u64 destoff, int no_time_update)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_path *path = NULL;
@@ -3521,7 +3655,8 @@
root->sectorsize);
ret = clone_finish_inode_update(trans, inode,
last_dest_end,
- destoff, olen);
+ destoff, olen,
+ no_time_update);
if (ret)
goto out;
if (new_key.offset + datal >= destoff + len)
@@ -3559,7 +3694,7 @@
clone_update_extent_map(inode, trans, NULL, last_dest_end,
destoff + len - last_dest_end);
ret = clone_finish_inode_update(trans, inode, destoff + len,
- destoff, olen);
+ destoff, olen, no_time_update);
}
out:
@@ -3696,7 +3831,7 @@
lock_extent_range(inode, destoff, len);
}
- ret = btrfs_clone(src, inode, off, olen, len, destoff);
+ ret = btrfs_clone(src, inode, off, olen, len, destoff, 0);
if (same_inode) {
u64 lock_start = min_t(u64, off, destoff);
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 89656d7..52170cf 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -552,6 +552,10 @@
trace_btrfs_ordered_extent_put(entry->inode, entry);
if (atomic_dec_and_test(&entry->refs)) {
+ ASSERT(list_empty(&entry->log_list));
+ ASSERT(list_empty(&entry->trans_list));
+ ASSERT(list_empty(&entry->root_extent_list));
+ ASSERT(RB_EMPTY_NODE(&entry->rb_node));
if (entry->inode)
btrfs_add_delayed_iput(entry->inode);
while (!list_empty(&entry->list)) {
@@ -579,6 +583,7 @@
spin_lock_irq(&tree->lock);
node = &entry->rb_node;
rb_erase(node, &tree->tree);
+ RB_CLEAR_NODE(node);
if (tree->last == node)
tree->last = NULL;
set_bit(BTRFS_ORDERED_COMPLETE, &entry->flags);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index d5f1f03..e9ace09 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1349,6 +1349,11 @@
struct btrfs_root *quota_root;
struct btrfs_qgroup *qgroup;
int ret = 0;
+ /* Sometimes we would want to clear the limit on this qgroup.
+ * To meet this requirement, we treat the -1 as a special value
+ * which tell kernel to clear the limit on this qgroup.
+ */
+ const u64 CLEAR_VALUE = -1;
mutex_lock(&fs_info->qgroup_ioctl_lock);
quota_root = fs_info->quota_root;
@@ -1364,14 +1369,42 @@
}
spin_lock(&fs_info->qgroup_lock);
- if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_RFER)
- qgroup->max_rfer = limit->max_rfer;
- if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_EXCL)
- qgroup->max_excl = limit->max_excl;
- if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_RFER)
- qgroup->rsv_rfer = limit->rsv_rfer;
- if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_EXCL)
- qgroup->rsv_excl = limit->rsv_excl;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_RFER) {
+ if (limit->max_rfer == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_MAX_RFER;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_MAX_RFER;
+ qgroup->max_rfer = 0;
+ } else {
+ qgroup->max_rfer = limit->max_rfer;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_EXCL) {
+ if (limit->max_excl == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_MAX_EXCL;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_MAX_EXCL;
+ qgroup->max_excl = 0;
+ } else {
+ qgroup->max_excl = limit->max_excl;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_RFER) {
+ if (limit->rsv_rfer == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_RSV_RFER;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_RSV_RFER;
+ qgroup->rsv_rfer = 0;
+ } else {
+ qgroup->rsv_rfer = limit->rsv_rfer;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_EXCL) {
+ if (limit->rsv_excl == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_RSV_EXCL;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_RSV_EXCL;
+ qgroup->rsv_excl = 0;
+ } else {
+ qgroup->rsv_excl = limit->rsv_excl;
+ }
+ }
qgroup->lim_flags |= limit->flags;
spin_unlock(&fs_info->qgroup_lock);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 827951f..88cbb59 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4049,7 +4049,7 @@
if (trans && progress && err == -ENOSPC) {
ret = btrfs_force_chunk_alloc(trans, rc->extent_root,
rc->block_group->flags);
- if (ret == 0) {
+ if (ret == 1) {
err = 0;
progress = 0;
goto restart;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 9f2feab..94db0fa 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3571,7 +3571,6 @@
static noinline_for_stack int scrub_workers_get(struct btrfs_fs_info *fs_info,
int is_dev_replace)
{
- int ret = 0;
unsigned int flags = WQ_FREEZABLE | WQ_UNBOUND;
int max_active = fs_info->thread_pool_size;
@@ -3584,34 +3583,36 @@
fs_info->scrub_workers =
btrfs_alloc_workqueue("btrfs-scrub", flags,
max_active, 4);
- if (!fs_info->scrub_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_workers)
+ goto fail_scrub_workers;
+
fs_info->scrub_wr_completion_workers =
btrfs_alloc_workqueue("btrfs-scrubwrc", flags,
max_active, 2);
- if (!fs_info->scrub_wr_completion_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_wr_completion_workers)
+ goto fail_scrub_wr_completion_workers;
+
fs_info->scrub_nocow_workers =
btrfs_alloc_workqueue("btrfs-scrubnc", flags, 1, 0);
- if (!fs_info->scrub_nocow_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_nocow_workers)
+ goto fail_scrub_nocow_workers;
fs_info->scrub_parity_workers =
btrfs_alloc_workqueue("btrfs-scrubparity", flags,
max_active, 2);
- if (!fs_info->scrub_parity_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_parity_workers)
+ goto fail_scrub_parity_workers;
}
++fs_info->scrub_workers_refcnt;
-out:
- return ret;
+ return 0;
+
+fail_scrub_parity_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_nocow_workers);
+fail_scrub_nocow_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_wr_completion_workers);
+fail_scrub_wr_completion_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_workers);
+fail_scrub_workers:
+ return -ENOMEM;
}
static noinline_for_stack void scrub_workers_put(struct btrfs_fs_info *fs_info)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1ce80c1..9c45431 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -4117,6 +4117,187 @@
return 0;
}
+/*
+ * At the moment we always log all xattrs. This is to figure out at log replay
+ * time which xattrs must have their deletion replayed. If a xattr is missing
+ * in the log tree and exists in the fs/subvol tree, we delete it. This is
+ * because if a xattr is deleted, the inode is fsynced and a power failure
+ * happens, causing the log to be replayed the next time the fs is mounted,
+ * we want the xattr to not exist anymore (same behaviour as other filesystems
+ * with a journal, ext3/4, xfs, f2fs, etc).
+ */
+static int btrfs_log_all_xattrs(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct inode *inode,
+ struct btrfs_path *path,
+ struct btrfs_path *dst_path)
+{
+ int ret;
+ struct btrfs_key key;
+ const u64 ino = btrfs_ino(inode);
+ int ins_nr = 0;
+ int start_slot = 0;
+
+ key.objectid = ino;
+ key.type = BTRFS_XATTR_ITEM_KEY;
+ key.offset = 0;
+
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ if (ret < 0)
+ return ret;
+
+ while (true) {
+ int slot = path->slots[0];
+ struct extent_buffer *leaf = path->nodes[0];
+ int nritems = btrfs_header_nritems(leaf);
+
+ if (slot >= nritems) {
+ if (ins_nr > 0) {
+ u64 last_extent = 0;
+
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, start_slot,
+ ins_nr, 1, 0);
+ /* can't be 1, extent items aren't processed */
+ ASSERT(ret <= 0);
+ if (ret < 0)
+ return ret;
+ ins_nr = 0;
+ }
+ ret = btrfs_next_leaf(root, path);
+ if (ret < 0)
+ return ret;
+ else if (ret > 0)
+ break;
+ continue;
+ }
+
+ btrfs_item_key_to_cpu(leaf, &key, slot);
+ if (key.objectid != ino || key.type != BTRFS_XATTR_ITEM_KEY)
+ break;
+
+ if (ins_nr == 0)
+ start_slot = slot;
+ ins_nr++;
+ path->slots[0]++;
+ cond_resched();
+ }
+ if (ins_nr > 0) {
+ u64 last_extent = 0;
+
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, start_slot,
+ ins_nr, 1, 0);
+ /* can't be 1, extent items aren't processed */
+ ASSERT(ret <= 0);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * If the no holes feature is enabled we need to make sure any hole between the
+ * last extent and the i_size of our inode is explicitly marked in the log. This
+ * is to make sure that doing something like:
+ *
+ * 1) create file with 128Kb of data
+ * 2) truncate file to 64Kb
+ * 3) truncate file to 256Kb
+ * 4) fsync file
+ * 5) <crash/power failure>
+ * 6) mount fs and trigger log replay
+ *
+ * Will give us a file with a size of 256Kb, the first 64Kb of data match what
+ * the file had in its first 64Kb of data at step 1 and the last 192Kb of the
+ * file correspond to a hole. The presence of explicit holes in a log tree is
+ * what guarantees that log replay will remove/adjust file extent items in the
+ * fs/subvol tree.
+ *
+ * Here we do not need to care about holes between extents, that is already done
+ * by copy_items(). We also only need to do this in the full sync path, where we
+ * lookup for extents from the fs/subvol tree only. In the fast path case, we
+ * lookup the list of modified extent maps and if any represents a hole, we
+ * insert a corresponding extent representing a hole in the log tree.
+ */
+static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct inode *inode,
+ struct btrfs_path *path)
+{
+ int ret;
+ struct btrfs_key key;
+ u64 hole_start;
+ u64 hole_size;
+ struct extent_buffer *leaf;
+ struct btrfs_root *log = root->log_root;
+ const u64 ino = btrfs_ino(inode);
+ const u64 i_size = i_size_read(inode);
+
+ if (!btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ return 0;
+
+ key.objectid = ino;
+ key.type = BTRFS_EXTENT_DATA_KEY;
+ key.offset = (u64)-1;
+
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ ASSERT(ret != 0);
+ if (ret < 0)
+ return ret;
+
+ ASSERT(path->slots[0] > 0);
+ path->slots[0]--;
+ leaf = path->nodes[0];
+ btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
+
+ if (key.objectid != ino || key.type != BTRFS_EXTENT_DATA_KEY) {
+ /* inode does not have any extents */
+ hole_start = 0;
+ hole_size = i_size;
+ } else {
+ struct btrfs_file_extent_item *extent;
+ u64 len;
+
+ /*
+ * If there's an extent beyond i_size, an explicit hole was
+ * already inserted by copy_items().
+ */
+ if (key.offset >= i_size)
+ return 0;
+
+ extent = btrfs_item_ptr(leaf, path->slots[0],
+ struct btrfs_file_extent_item);
+
+ if (btrfs_file_extent_type(leaf, extent) ==
+ BTRFS_FILE_EXTENT_INLINE) {
+ len = btrfs_file_extent_inline_len(leaf,
+ path->slots[0],
+ extent);
+ ASSERT(len == i_size);
+ return 0;
+ }
+
+ len = btrfs_file_extent_num_bytes(leaf, extent);
+ /* Last extent goes beyond i_size, no need to log a hole. */
+ if (key.offset + len > i_size)
+ return 0;
+ hole_start = key.offset + len;
+ hole_size = i_size - hole_start;
+ }
+ btrfs_release_path(path);
+
+ /* Last extent ends at i_size. */
+ if (hole_size == 0)
+ return 0;
+
+ hole_size = ALIGN(hole_size, root->sectorsize);
+ ret = btrfs_insert_file_extent(trans, log, ino, hole_start, 0, 0,
+ hole_size, 0, hole_size, 0, 0, 0);
+ return ret;
+}
+
/* log a single inode in the tree log.
* At least one parent directory for this inode must exist in the tree
* or be logged already.
@@ -4155,6 +4336,7 @@
u64 ino = btrfs_ino(inode);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
u64 logged_isize = 0;
+ bool need_log_inode_item = true;
path = btrfs_alloc_path();
if (!path)
@@ -4263,11 +4445,6 @@
} else {
if (inode_only == LOG_INODE_ALL)
fast_search = true;
- ret = log_inode_item(trans, log, dst_path, inode);
- if (ret) {
- err = ret;
- goto out_unlock;
- }
goto log_extents;
}
@@ -4290,6 +4467,28 @@
if (min_key.type > max_key.type)
break;
+ if (min_key.type == BTRFS_INODE_ITEM_KEY)
+ need_log_inode_item = false;
+
+ /* Skip xattrs, we log them later with btrfs_log_all_xattrs() */
+ if (min_key.type == BTRFS_XATTR_ITEM_KEY) {
+ if (ins_nr == 0)
+ goto next_slot;
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, ins_start_slot,
+ ins_nr, inode_only, logged_isize);
+ if (ret < 0) {
+ err = ret;
+ goto out_unlock;
+ }
+ ins_nr = 0;
+ if (ret) {
+ btrfs_release_path(path);
+ continue;
+ }
+ goto next_slot;
+ }
+
src = path->nodes[0];
if (ins_nr && ins_start_slot + ins_nr == path->slots[0]) {
ins_nr++;
@@ -4357,9 +4556,26 @@
ins_nr = 0;
}
+ btrfs_release_path(path);
+ btrfs_release_path(dst_path);
+ err = btrfs_log_all_xattrs(trans, root, inode, path, dst_path);
+ if (err)
+ goto out_unlock;
+ if (max_key.type >= BTRFS_EXTENT_DATA_KEY && !fast_search) {
+ btrfs_release_path(path);
+ btrfs_release_path(dst_path);
+ err = btrfs_log_trailing_hole(trans, root, inode, path);
+ if (err)
+ goto out_unlock;
+ }
log_extents:
btrfs_release_path(path);
btrfs_release_path(dst_path);
+ if (need_log_inode_item) {
+ err = log_inode_item(trans, log, dst_path, inode);
+ if (err)
+ goto out_unlock;
+ }
if (fast_search) {
/*
* Some ordered extents started by fsync might have completed
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 4b438b4..fbe7c10 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2766,6 +2766,20 @@
root = root->fs_info->chunk_root;
extent_root = root->fs_info->extent_root;
+ /*
+ * Prevent races with automatic removal of unused block groups.
+ * After we relocate and before we remove the chunk with offset
+ * chunk_offset, automatic removal of the block group can kick in,
+ * resulting in a failure when calling btrfs_remove_chunk() below.
+ *
+ * Make sure to acquire this mutex before doing a tree search (dev
+ * or chunk trees) to find chunks. Otherwise the cleaner kthread might
+ * call btrfs_remove_chunk() (through btrfs_delete_unused_bgs()) after
+ * we release the path used to search the chunk/dev tree and before
+ * the current task acquires this mutex and calls us.
+ */
+ ASSERT(mutex_is_locked(&root->fs_info->delete_unused_bgs_mutex));
+
ret = btrfs_can_relocate(extent_root, chunk_offset);
if (ret)
return -ENOSPC;
@@ -2814,13 +2828,18 @@
key.type = BTRFS_CHUNK_ITEM_KEY;
while (1) {
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
goto error;
+ }
BUG_ON(ret == 0); /* Corruption */
ret = btrfs_previous_item(chunk_root, path, key.objectid,
key.type);
+ if (ret)
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto error;
if (ret > 0)
@@ -2843,6 +2862,7 @@
else
BUG_ON(ret);
}
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (found_key.offset == 0)
break;
@@ -3299,9 +3319,12 @@
goto error;
}
+ mutex_lock(&fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto error;
+ }
/*
* this shouldn't happen, it means the last relocate
@@ -3313,6 +3336,7 @@
ret = btrfs_previous_item(chunk_root, path, 0,
BTRFS_CHUNK_ITEM_KEY);
if (ret) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
ret = 0;
break;
}
@@ -3321,8 +3345,10 @@
slot = path->slots[0];
btrfs_item_key_to_cpu(leaf, &found_key, slot);
- if (found_key.objectid != key.objectid)
+ if (found_key.objectid != key.objectid) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
break;
+ }
chunk = btrfs_item_ptr(leaf, slot, struct btrfs_chunk);
@@ -3335,10 +3361,13 @@
ret = should_balance_chunk(chunk_root, leaf, chunk,
found_key.offset);
btrfs_release_path(path);
- if (!ret)
+ if (!ret) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto loop;
+ }
if (counting) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
spin_lock(&fs_info->balance_lock);
bctl->stat.expected++;
spin_unlock(&fs_info->balance_lock);
@@ -3348,6 +3377,7 @@
ret = btrfs_relocate_chunk(chunk_root,
found_key.objectid,
found_key.offset);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto error;
if (ret == -ENOSPC) {
@@ -4087,11 +4117,16 @@
key.type = BTRFS_DEV_EXTENT_KEY;
do {
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
goto done;
+ }
ret = btrfs_previous_item(root, path, 0, key.type);
+ if (ret)
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto done;
if (ret) {
@@ -4105,6 +4140,7 @@
btrfs_item_key_to_cpu(l, &key, path->slots[0]);
if (key.objectid != device->devid) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
@@ -4113,6 +4149,7 @@
length = btrfs_dev_extent_length(l, dev_extent);
if (key.offset + length <= new_size) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
@@ -4122,6 +4159,7 @@
btrfs_release_path(path);
ret = btrfs_relocate_chunk(root, chunk_objectid, chunk_offset);
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto done;
if (ret == -ENOSPC)
@@ -5715,7 +5753,6 @@
static void btrfs_end_bio(struct bio *bio, int err)
{
struct btrfs_bio *bbio = bio->bi_private;
- struct btrfs_device *dev = bbio->stripes[0].dev;
int is_orig_bio = 0;
if (err) {
@@ -5723,6 +5760,7 @@
if (err == -EIO || err == -EREMOTEIO) {
unsigned int stripe_index =
btrfs_io_bio(bio)->stripe_index;
+ struct btrfs_device *dev;
BUG_ON(stripe_index >= bbio->num_stripes);
dev = bbio->stripes[stripe_index].dev;
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 8c52472..aecd085 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -43,7 +43,6 @@
loff_t i_size; /* object size */
unsigned long flags;
#define CACHEFILES_OBJECT_ACTIVE 0 /* T if marked active */
-#define CACHEFILES_OBJECT_BURIED 1 /* T if preemptively buried */
atomic_t usage; /* object usage count */
uint8_t type; /* object type */
uint8_t new; /* T if object new */
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index ab857ab..fc1056f 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -97,7 +97,8 @@
* call vfs_unlink(), vfs_rmdir() or vfs_rename()
*/
static void cachefiles_mark_object_buried(struct cachefiles_cache *cache,
- struct dentry *dentry)
+ struct dentry *dentry,
+ enum fscache_why_object_killed why)
{
struct cachefiles_object *object;
struct rb_node *p;
@@ -132,8 +133,9 @@
pr_err("\n");
pr_err("Error: Can't preemptively bury live object\n");
cachefiles_printk_object(object, NULL);
- } else if (test_and_set_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
- pr_err("Error: Object already preemptively buried\n");
+ } else {
+ if (why != FSCACHE_OBJECT_IS_STALE)
+ fscache_object_mark_killed(&object->fscache, why);
}
write_unlock(&cache->active_lock);
@@ -265,7 +267,8 @@
static int cachefiles_bury_object(struct cachefiles_cache *cache,
struct dentry *dir,
struct dentry *rep,
- bool preemptive)
+ bool preemptive,
+ enum fscache_why_object_killed why)
{
struct dentry *grave, *trap;
struct path path, path_to_graveyard;
@@ -289,7 +292,7 @@
ret = vfs_unlink(d_inode(dir), rep, NULL);
if (preemptive)
- cachefiles_mark_object_buried(cache, rep);
+ cachefiles_mark_object_buried(cache, rep, why);
}
mutex_unlock(&d_inode(dir)->i_mutex);
@@ -394,7 +397,7 @@
"Rename failed with error %d", ret);
if (preemptive)
- cachefiles_mark_object_buried(cache, rep);
+ cachefiles_mark_object_buried(cache, rep, why);
}
unlock_rename(cache->graveyard, dir);
@@ -422,7 +425,7 @@
mutex_lock_nested(&d_inode(dir)->i_mutex, I_MUTEX_PARENT);
- if (test_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
+ if (test_bit(FSCACHE_OBJECT_KILLED_BY_CACHE, &object->fscache.flags)) {
/* object allocation for the same key preemptively deleted this
* object's file so that it could create its own file */
_debug("object preemptively buried");
@@ -433,7 +436,8 @@
* may have been renamed */
if (dir == object->dentry->d_parent) {
ret = cachefiles_bury_object(cache, dir,
- object->dentry, false);
+ object->dentry, false,
+ FSCACHE_OBJECT_WAS_RETIRED);
} else {
/* it got moved, presumably by cachefilesd culling it,
* so it's no longer in the key path and we can ignore
@@ -522,7 +526,7 @@
if (d_is_negative(next)) {
ret = cachefiles_has_space(cache, 1, 0);
if (ret < 0)
- goto create_error;
+ goto no_space_error;
path.dentry = dir;
ret = security_path_mkdir(&path, next, 0);
@@ -551,7 +555,7 @@
if (d_is_negative(next)) {
ret = cachefiles_has_space(cache, 1, 0);
if (ret < 0)
- goto create_error;
+ goto no_space_error;
path.dentry = dir;
ret = security_path_mknod(&path, next, S_IFREG, 0);
@@ -602,7 +606,8 @@
* mutex) */
object->dentry = NULL;
- ret = cachefiles_bury_object(cache, dir, next, true);
+ ret = cachefiles_bury_object(cache, dir, next, true,
+ FSCACHE_OBJECT_IS_STALE);
dput(next);
next = NULL;
@@ -610,6 +615,7 @@
goto delete_error;
_debug("redo lookup");
+ fscache_object_retrying_stale(&object->fscache);
goto lookup_again;
}
}
@@ -662,6 +668,8 @@
_leave(" = 0 [%lu]", d_backing_inode(object->dentry)->i_ino);
return 0;
+no_space_error:
+ fscache_object_mark_killed(&object->fscache, FSCACHE_OBJECT_NO_SPACE);
create_error:
_debug("create error %d", ret);
if (ret == -EIO)
@@ -927,7 +935,8 @@
/* actually remove the victim (drops the dir mutex) */
_debug("bury");
- ret = cachefiles_bury_object(cache, dir, victim, false);
+ ret = cachefiles_bury_object(cache, dir, victim, false,
+ FSCACHE_OBJECT_WAS_CULLED);
if (ret < 0)
goto error;
diff --git a/fs/ceph/acl.c b/fs/ceph/acl.c
index 64fa248..8f84646 100644
--- a/fs/ceph/acl.c
+++ b/fs/ceph/acl.c
@@ -187,10 +187,10 @@
val_size2 = posix_acl_xattr_size(default_acl->a_count);
err = -ENOMEM;
- tmp_buf = kmalloc(max(val_size1, val_size2), GFP_NOFS);
+ tmp_buf = kmalloc(max(val_size1, val_size2), GFP_KERNEL);
if (!tmp_buf)
goto out_err;
- pagelist = kmalloc(sizeof(struct ceph_pagelist), GFP_NOFS);
+ pagelist = kmalloc(sizeof(struct ceph_pagelist), GFP_KERNEL);
if (!pagelist)
goto out_err;
ceph_pagelist_init(pagelist);
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e162bcd..890c509 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -87,17 +87,21 @@
inode = mapping->host;
ci = ceph_inode(inode);
- /*
- * Note that we're grabbing a snapc ref here without holding
- * any locks!
- */
- snapc = ceph_get_snap_context(ci->i_snap_realm->cached_context);
-
/* dirty the head */
spin_lock(&ci->i_ceph_lock);
- if (ci->i_head_snapc == NULL)
- ci->i_head_snapc = ceph_get_snap_context(snapc);
- ++ci->i_wrbuffer_ref_head;
+ BUG_ON(ci->i_wr_ref == 0); // caller should hold Fw reference
+ if (__ceph_have_pending_cap_snap(ci)) {
+ struct ceph_cap_snap *capsnap =
+ list_last_entry(&ci->i_cap_snaps,
+ struct ceph_cap_snap,
+ ci_item);
+ snapc = ceph_get_snap_context(capsnap->context);
+ capsnap->dirty_pages++;
+ } else {
+ BUG_ON(!ci->i_head_snapc);
+ snapc = ceph_get_snap_context(ci->i_head_snapc);
+ ++ci->i_wrbuffer_ref_head;
+ }
if (ci->i_wrbuffer_ref == 0)
ihold(inode);
++ci->i_wrbuffer_ref;
@@ -346,7 +350,7 @@
/* build page vector */
nr_pages = calc_pages_for(0, len);
- pages = kmalloc(sizeof(*pages) * nr_pages, GFP_NOFS);
+ pages = kmalloc(sizeof(*pages) * nr_pages, GFP_KERNEL);
ret = -ENOMEM;
if (!pages)
goto out;
@@ -358,7 +362,7 @@
dout("start_read %p adding %p idx %lu\n", inode, page,
page->index);
if (add_to_page_cache_lru(page, &inode->i_data, page->index,
- GFP_NOFS)) {
+ GFP_KERNEL)) {
ceph_fscache_uncache_page(inode, page);
page_cache_release(page);
dout("start_read %p add_to_page_cache failed %p\n",
@@ -436,7 +440,7 @@
* only snap context we are allowed to write back.
*/
static struct ceph_snap_context *get_oldest_context(struct inode *inode,
- u64 *snap_size)
+ loff_t *snap_size)
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_snap_context *snapc = NULL;
@@ -476,8 +480,9 @@
struct ceph_osd_client *osdc;
struct ceph_snap_context *snapc, *oldest;
loff_t page_off = page_offset(page);
+ loff_t snap_size = -1;
long writeback_stat;
- u64 truncate_size, snap_size = 0;
+ u64 truncate_size;
u32 truncate_seq;
int err = 0, len = PAGE_CACHE_SIZE;
@@ -512,7 +517,7 @@
spin_lock(&ci->i_ceph_lock);
truncate_seq = ci->i_truncate_seq;
truncate_size = ci->i_truncate_size;
- if (!snap_size)
+ if (snap_size == -1)
snap_size = i_size_read(inode);
spin_unlock(&ci->i_ceph_lock);
@@ -695,7 +700,8 @@
unsigned wsize = 1 << inode->i_blkbits;
struct ceph_osd_request *req = NULL;
int do_sync = 0;
- u64 truncate_size, snap_size;
+ loff_t snap_size, i_size;
+ u64 truncate_size;
u32 truncate_seq;
/*
@@ -741,7 +747,7 @@
retry:
/* find oldest snap context with dirty data */
ceph_put_snap_context(snapc);
- snap_size = 0;
+ snap_size = -1;
snapc = get_oldest_context(inode, &snap_size);
if (!snapc) {
/* hmm, why does writepages get called when there
@@ -749,16 +755,13 @@
dout(" no snap context with dirty data?\n");
goto out;
}
- if (snap_size == 0)
- snap_size = i_size_read(inode);
dout(" oldest snapc is %p seq %lld (%d snaps)\n",
snapc, snapc->seq, snapc->num_snaps);
spin_lock(&ci->i_ceph_lock);
truncate_seq = ci->i_truncate_seq;
truncate_size = ci->i_truncate_size;
- if (!snap_size)
- snap_size = i_size_read(inode);
+ i_size = i_size_read(inode);
spin_unlock(&ci->i_ceph_lock);
if (last_snapc && snapc != last_snapc) {
@@ -828,8 +831,10 @@
dout("waiting on writeback %p\n", page);
wait_on_page_writeback(page);
}
- if (page_offset(page) >= snap_size) {
- dout("%p page eof %llu\n", page, snap_size);
+ if (page_offset(page) >=
+ (snap_size == -1 ? i_size : snap_size)) {
+ dout("%p page eof %llu\n", page,
+ (snap_size == -1 ? i_size : snap_size));
done = 1;
unlock_page(page);
break;
@@ -884,7 +889,8 @@
}
if (do_sync)
- osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC);
+ osd_req_op_init(req, 1,
+ CEPH_OSD_OP_STARTSYNC, 0);
req->r_callback = writepages_finish;
req->r_inode = inode;
@@ -944,10 +950,18 @@
}
/* Format the osd request message and submit the write */
-
offset = page_offset(pages[0]);
- len = min(snap_size - offset,
- (u64)locked_pages << PAGE_CACHE_SHIFT);
+ len = (u64)locked_pages << PAGE_CACHE_SHIFT;
+ if (snap_size == -1) {
+ len = min(len, (u64)i_size_read(inode) - offset);
+ /* writepages_finish() clears writeback pages
+ * according to the data length, so make sure
+ * data length covers all locked pages */
+ len = max(len, 1 +
+ ((u64)(locked_pages - 1) << PAGE_CACHE_SHIFT));
+ } else {
+ len = min(len, snap_size - offset);
+ }
dout("writepages got %d pages at %llu~%llu\n",
locked_pages, offset, len);
@@ -1032,7 +1046,6 @@
{
struct inode *inode = file_inode(file);
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
loff_t page_off = pos & PAGE_CACHE_MASK;
int pos_in_page = pos & ~PAGE_CACHE_MASK;
int end_in_page = pos_in_page + len;
@@ -1044,10 +1057,6 @@
/* writepages currently holds page lock, but if we change that later, */
wait_on_page_writeback(page);
- /* check snap context */
- BUG_ON(!ci->i_snap_realm);
- down_read(&mdsc->snap_rwsem);
- BUG_ON(!ci->i_snap_realm->cached_context);
snapc = page_snap_context(page);
if (snapc && snapc != ci->i_head_snapc) {
/*
@@ -1055,7 +1064,6 @@
* context! is it writeable now?
*/
oldest = get_oldest_context(inode, NULL);
- up_read(&mdsc->snap_rwsem);
if (snapc->seq > oldest->seq) {
ceph_put_snap_context(oldest);
@@ -1112,7 +1120,6 @@
}
/* we need to read it. */
- up_read(&mdsc->snap_rwsem);
r = readpage_nounlock(file, page);
if (r < 0)
goto fail_nosnap;
@@ -1157,16 +1164,13 @@
/*
* we don't do anything in here that simple_write_end doesn't do
- * except adjust dirty page accounting and drop read lock on
- * mdsc->snap_rwsem.
+ * except adjust dirty page accounting
*/
static int ceph_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
struct inode *inode = file_inode(file);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_mds_client *mdsc = fsc->mdsc;
unsigned from = pos & (PAGE_CACHE_SIZE - 1);
int check_cap = 0;
@@ -1188,7 +1192,6 @@
set_page_dirty(page);
unlock_page(page);
- up_read(&mdsc->snap_rwsem);
page_cache_release(page);
if (check_cap)
@@ -1314,13 +1317,17 @@
struct inode *inode = file_inode(vma->vm_file);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_file_info *fi = vma->vm_file->private_data;
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+ struct ceph_cap_flush *prealloc_cf;
struct page *page = vmf->page;
loff_t off = page_offset(page);
loff_t size = i_size_read(inode);
size_t len;
int want, got, ret;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return VM_FAULT_SIGBUS;
+
if (ci->i_inline_version != CEPH_INLINE_NONE) {
struct page *locked_page = NULL;
if (off == 0) {
@@ -1330,8 +1337,10 @@
ret = ceph_uninline_data(vma->vm_file, locked_page);
if (locked_page)
unlock_page(locked_page);
- if (ret < 0)
- return VM_FAULT_SIGBUS;
+ if (ret < 0) {
+ ret = VM_FAULT_SIGBUS;
+ goto out_free;
+ }
}
if (off + PAGE_CACHE_SIZE <= size)
@@ -1353,7 +1362,8 @@
break;
if (ret != -ERESTARTSYS) {
WARN_ON(1);
- return VM_FAULT_SIGBUS;
+ ret = VM_FAULT_SIGBUS;
+ goto out_free;
}
}
dout("page_mkwrite %p %llu~%zd got cap refs on %s\n",
@@ -1373,7 +1383,6 @@
if (ret == 0) {
/* success. we'll keep the page locked. */
set_page_dirty(page);
- up_read(&mdsc->snap_rwsem);
ret = VM_FAULT_LOCKED;
} else {
if (ret == -ENOMEM)
@@ -1389,7 +1398,8 @@
int dirty;
spin_lock(&ci->i_ceph_lock);
ci->i_inline_version = CEPH_INLINE_NONE;
- dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR,
+ &prealloc_cf);
spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
@@ -1398,6 +1408,8 @@
dout("page_mkwrite %p %llu~%zd dropping cap refs on %s ret %d\n",
inode, off, len, ceph_cap_string(got), ret);
ceph_put_cap_refs(ci, got);
+out_free:
+ ceph_free_cap_flush(prealloc_cf);
return ret;
}
@@ -1509,8 +1521,7 @@
ceph_vino(inode), 0, &len, 0, 1,
CEPH_OSD_OP_CREATE,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
- ci->i_snap_realm->cached_context,
- 0, 0, false);
+ ceph_empty_snapc, 0, 0, false);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto out;
@@ -1528,7 +1539,7 @@
ceph_vino(inode), 0, &len, 1, 3,
CEPH_OSD_OP_WRITE,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
- ci->i_snap_realm->cached_context,
+ ceph_empty_snapc,
ci->i_truncate_seq, ci->i_truncate_size,
false);
if (IS_ERR(req)) {
@@ -1597,3 +1608,206 @@
vma->vm_ops = &ceph_vmops;
return 0;
}
+
+enum {
+ POOL_READ = 1,
+ POOL_WRITE = 2,
+};
+
+static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
+{
+ struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->vfs_inode);
+ struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
+ struct rb_node **p, *parent;
+ struct ceph_pool_perm *perm;
+ struct page **pages;
+ int err = 0, err2 = 0, have = 0;
+
+ down_read(&mdsc->pool_perm_rwsem);
+ p = &mdsc->pool_perm_tree.rb_node;
+ while (*p) {
+ perm = rb_entry(*p, struct ceph_pool_perm, node);
+ if (pool < perm->pool)
+ p = &(*p)->rb_left;
+ else if (pool > perm->pool)
+ p = &(*p)->rb_right;
+ else {
+ have = perm->perm;
+ break;
+ }
+ }
+ up_read(&mdsc->pool_perm_rwsem);
+ if (*p)
+ goto out;
+
+ dout("__ceph_pool_perm_get pool %u no perm cached\n", pool);
+
+ down_write(&mdsc->pool_perm_rwsem);
+ parent = NULL;
+ while (*p) {
+ parent = *p;
+ perm = rb_entry(parent, struct ceph_pool_perm, node);
+ if (pool < perm->pool)
+ p = &(*p)->rb_left;
+ else if (pool > perm->pool)
+ p = &(*p)->rb_right;
+ else {
+ have = perm->perm;
+ break;
+ }
+ }
+ if (*p) {
+ up_write(&mdsc->pool_perm_rwsem);
+ goto out;
+ }
+
+ rd_req = ceph_osdc_alloc_request(&fsc->client->osdc,
+ ceph_empty_snapc,
+ 1, false, GFP_NOFS);
+ if (!rd_req) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
+
+ rd_req->r_flags = CEPH_OSD_FLAG_READ;
+ osd_req_op_init(rd_req, 0, CEPH_OSD_OP_STAT, 0);
+ rd_req->r_base_oloc.pool = pool;
+ snprintf(rd_req->r_base_oid.name, sizeof(rd_req->r_base_oid.name),
+ "%llx.00000000", ci->i_vino.ino);
+ rd_req->r_base_oid.name_len = strlen(rd_req->r_base_oid.name);
+
+ wr_req = ceph_osdc_alloc_request(&fsc->client->osdc,
+ ceph_empty_snapc,
+ 1, false, GFP_NOFS);
+ if (!wr_req) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
+
+ wr_req->r_flags = CEPH_OSD_FLAG_WRITE |
+ CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK;
+ osd_req_op_init(wr_req, 0, CEPH_OSD_OP_CREATE, CEPH_OSD_OP_FLAG_EXCL);
+ wr_req->r_base_oloc.pool = pool;
+ wr_req->r_base_oid = rd_req->r_base_oid;
+
+ /* one page should be large enough for STAT data */
+ pages = ceph_alloc_page_vector(1, GFP_KERNEL);
+ if (IS_ERR(pages)) {
+ err = PTR_ERR(pages);
+ goto out_unlock;
+ }
+
+ osd_req_op_raw_data_in_pages(rd_req, 0, pages, PAGE_SIZE,
+ 0, false, true);
+ ceph_osdc_build_request(rd_req, 0, NULL, CEPH_NOSNAP,
+ &ci->vfs_inode.i_mtime);
+ err = ceph_osdc_start_request(&fsc->client->osdc, rd_req, false);
+
+ ceph_osdc_build_request(wr_req, 0, NULL, CEPH_NOSNAP,
+ &ci->vfs_inode.i_mtime);
+ err2 = ceph_osdc_start_request(&fsc->client->osdc, wr_req, false);
+
+ if (!err)
+ err = ceph_osdc_wait_request(&fsc->client->osdc, rd_req);
+ if (!err2)
+ err2 = ceph_osdc_wait_request(&fsc->client->osdc, wr_req);
+
+ if (err >= 0 || err == -ENOENT)
+ have |= POOL_READ;
+ else if (err != -EPERM)
+ goto out_unlock;
+
+ if (err2 == 0 || err2 == -EEXIST)
+ have |= POOL_WRITE;
+ else if (err2 != -EPERM) {
+ err = err2;
+ goto out_unlock;
+ }
+
+ perm = kmalloc(sizeof(*perm), GFP_NOFS);
+ if (!perm) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
+
+ perm->pool = pool;
+ perm->perm = have;
+ rb_link_node(&perm->node, parent, p);
+ rb_insert_color(&perm->node, &mdsc->pool_perm_tree);
+ err = 0;
+out_unlock:
+ up_write(&mdsc->pool_perm_rwsem);
+
+ if (rd_req)
+ ceph_osdc_put_request(rd_req);
+ if (wr_req)
+ ceph_osdc_put_request(wr_req);
+out:
+ if (!err)
+ err = have;
+ dout("__ceph_pool_perm_get pool %u result = %d\n", pool, err);
+ return err;
+}
+
+int ceph_pool_perm_check(struct ceph_inode_info *ci, int need)
+{
+ u32 pool;
+ int ret, flags;
+
+ if (ceph_test_mount_opt(ceph_inode_to_client(&ci->vfs_inode),
+ NOPOOLPERM))
+ return 0;
+
+ spin_lock(&ci->i_ceph_lock);
+ flags = ci->i_ceph_flags;
+ pool = ceph_file_layout_pg_pool(ci->i_layout);
+ spin_unlock(&ci->i_ceph_lock);
+check:
+ if (flags & CEPH_I_POOL_PERM) {
+ if ((need & CEPH_CAP_FILE_RD) && !(flags & CEPH_I_POOL_RD)) {
+ dout("ceph_pool_perm_check pool %u no read perm\n",
+ pool);
+ return -EPERM;
+ }
+ if ((need & CEPH_CAP_FILE_WR) && !(flags & CEPH_I_POOL_WR)) {
+ dout("ceph_pool_perm_check pool %u no write perm\n",
+ pool);
+ return -EPERM;
+ }
+ return 0;
+ }
+
+ ret = __ceph_pool_perm_get(ci, pool);
+ if (ret < 0)
+ return ret;
+
+ flags = CEPH_I_POOL_PERM;
+ if (ret & POOL_READ)
+ flags |= CEPH_I_POOL_RD;
+ if (ret & POOL_WRITE)
+ flags |= CEPH_I_POOL_WR;
+
+ spin_lock(&ci->i_ceph_lock);
+ if (pool == ceph_file_layout_pg_pool(ci->i_layout)) {
+ ci->i_ceph_flags = flags;
+ } else {
+ pool = ceph_file_layout_pg_pool(ci->i_layout);
+ flags = ci->i_ceph_flags;
+ }
+ spin_unlock(&ci->i_ceph_lock);
+ goto check;
+}
+
+void ceph_pool_perm_destroy(struct ceph_mds_client *mdsc)
+{
+ struct ceph_pool_perm *perm;
+ struct rb_node *n;
+
+ while (!RB_EMPTY_ROOT(&mdsc->pool_perm_tree)) {
+ n = rb_first(&mdsc->pool_perm_tree);
+ perm = rb_entry(n, struct ceph_pool_perm, node);
+ rb_erase(n, &mdsc->pool_perm_tree);
+ kfree(perm);
+ }
+}
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index be5ea6a..dc10c9d 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -833,7 +833,9 @@
used |= CEPH_CAP_PIN;
if (ci->i_rd_ref)
used |= CEPH_CAP_FILE_RD;
- if (ci->i_rdcache_ref || ci->vfs_inode.i_data.nrpages)
+ if (ci->i_rdcache_ref ||
+ (!S_ISDIR(ci->vfs_inode.i_mode) && /* ignore readdir cache */
+ ci->vfs_inode.i_data.nrpages))
used |= CEPH_CAP_FILE_CACHE;
if (ci->i_wr_ref)
used |= CEPH_CAP_FILE_WR;
@@ -926,16 +928,6 @@
/* remove from session list */
spin_lock(&session->s_cap_lock);
- /*
- * s_cap_reconnect is protected by s_cap_lock. no one changes
- * s_cap_gen while session is in the reconnect state.
- */
- if (queue_release &&
- (!session->s_cap_reconnect ||
- cap->cap_gen == session->s_cap_gen))
- __queue_cap_release(session, ci->i_vino.ino, cap->cap_id,
- cap->mseq, cap->issue_seq);
-
if (session->s_cap_iterator == cap) {
/* not yet, we are iterating over this very cap */
dout("__ceph_remove_cap delaying %p removal from session %p\n",
@@ -948,6 +940,25 @@
}
/* protect backpointer with s_cap_lock: see iterate_session_caps */
cap->ci = NULL;
+
+ /*
+ * s_cap_reconnect is protected by s_cap_lock. no one changes
+ * s_cap_gen while session is in the reconnect state.
+ */
+ if (queue_release &&
+ (!session->s_cap_reconnect || cap->cap_gen == session->s_cap_gen)) {
+ cap->queue_release = 1;
+ if (removed) {
+ list_add_tail(&cap->session_caps,
+ &session->s_cap_releases);
+ session->s_num_cap_releases++;
+ removed = 0;
+ }
+ } else {
+ cap->queue_release = 0;
+ }
+ cap->cap_ino = ci->i_vino.ino;
+
spin_unlock(&session->s_cap_lock);
/* remove from inode list */
@@ -977,8 +988,8 @@
static int send_cap_msg(struct ceph_mds_session *session,
u64 ino, u64 cid, int op,
int caps, int wanted, int dirty,
- u32 seq, u64 flush_tid, u32 issue_seq, u32 mseq,
- u64 size, u64 max_size,
+ u32 seq, u64 flush_tid, u64 oldest_flush_tid,
+ u32 issue_seq, u32 mseq, u64 size, u64 max_size,
struct timespec *mtime, struct timespec *atime,
u64 time_warp_seq,
kuid_t uid, kgid_t gid, umode_t mode,
@@ -992,20 +1003,23 @@
size_t extra_len;
dout("send_cap_msg %s %llx %llx caps %s wanted %s dirty %s"
- " seq %u/%u mseq %u follows %lld size %llu/%llu"
+ " seq %u/%u tid %llu/%llu mseq %u follows %lld size %llu/%llu"
" xattr_ver %llu xattr_len %d\n", ceph_cap_op_name(op),
cid, ino, ceph_cap_string(caps), ceph_cap_string(wanted),
ceph_cap_string(dirty),
- seq, issue_seq, mseq, follows, size, max_size,
+ seq, issue_seq, flush_tid, oldest_flush_tid,
+ mseq, follows, size, max_size,
xattr_version, xattrs_buf ? (int)xattrs_buf->vec.iov_len : 0);
- /* flock buffer size + inline version + inline data size */
- extra_len = 4 + 8 + 4;
+ /* flock buffer size + inline version + inline data size +
+ * osd_epoch_barrier + oldest_flush_tid */
+ extra_len = 4 + 8 + 4 + 4 + 8;
msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, sizeof(*fc) + extra_len,
GFP_NOFS, false);
if (!msg)
return -ENOMEM;
+ msg->hdr.version = cpu_to_le16(6);
msg->hdr.tid = cpu_to_le64(flush_tid);
fc = msg->front.iov_base;
@@ -1041,6 +1055,10 @@
ceph_encode_64(&p, inline_data ? 0 : CEPH_INLINE_NONE);
/* inline data size */
ceph_encode_32(&p, 0);
+ /* osd_epoch_barrier */
+ ceph_encode_32(&p, 0);
+ /* oldest_flush_tid */
+ ceph_encode_64(&p, oldest_flush_tid);
fc->xattr_version = cpu_to_le64(xattr_version);
if (xattrs_buf) {
@@ -1053,44 +1071,6 @@
return 0;
}
-void __queue_cap_release(struct ceph_mds_session *session,
- u64 ino, u64 cap_id, u32 migrate_seq,
- u32 issue_seq)
-{
- struct ceph_msg *msg;
- struct ceph_mds_cap_release *head;
- struct ceph_mds_cap_item *item;
-
- BUG_ON(!session->s_num_cap_releases);
- msg = list_first_entry(&session->s_cap_releases,
- struct ceph_msg, list_head);
-
- dout(" adding %llx release to mds%d msg %p (%d left)\n",
- ino, session->s_mds, msg, session->s_num_cap_releases);
-
- BUG_ON(msg->front.iov_len + sizeof(*item) > PAGE_CACHE_SIZE);
- head = msg->front.iov_base;
- le32_add_cpu(&head->num, 1);
- item = msg->front.iov_base + msg->front.iov_len;
- item->ino = cpu_to_le64(ino);
- item->cap_id = cpu_to_le64(cap_id);
- item->migrate_seq = cpu_to_le32(migrate_seq);
- item->seq = cpu_to_le32(issue_seq);
-
- session->s_num_cap_releases--;
-
- msg->front.iov_len += sizeof(*item);
- if (le32_to_cpu(head->num) == CEPH_CAPS_PER_RELEASE) {
- dout(" release msg %p full\n", msg);
- list_move_tail(&msg->list_head, &session->s_cap_releases_done);
- } else {
- dout(" release msg %p at %d/%d (%d)\n", msg,
- (int)le32_to_cpu(head->num),
- (int)CEPH_CAPS_PER_RELEASE,
- (int)msg->front.iov_len);
- }
-}
-
/*
* Queue cap releases when an inode is dropped from our cache. Since
* inode is about to be destroyed, there is no need for i_ceph_lock.
@@ -1127,7 +1107,7 @@
*/
static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
int op, int used, int want, int retain, int flushing,
- unsigned *pflush_tid)
+ u64 flush_tid, u64 oldest_flush_tid)
__releases(cap->ci->i_ceph_lock)
{
struct ceph_inode_info *ci = cap->ci;
@@ -1145,8 +1125,6 @@
u64 xattr_version = 0;
struct ceph_buffer *xattr_blob = NULL;
int delayed = 0;
- u64 flush_tid = 0;
- int i;
int ret;
bool inline_data;
@@ -1190,26 +1168,7 @@
cap->implemented &= cap->issued | used;
cap->mds_wanted = want;
- if (flushing) {
- /*
- * assign a tid for flush operations so we can avoid
- * flush1 -> dirty1 -> flush2 -> flushack1 -> mark
- * clean type races. track latest tid for every bit
- * so we can handle flush AxFw, flush Fw, and have the
- * first ack clean Ax.
- */
- flush_tid = ++ci->i_cap_flush_last_tid;
- if (pflush_tid)
- *pflush_tid = flush_tid;
- dout(" cap_flush_tid %d\n", (int)flush_tid);
- for (i = 0; i < CEPH_CAP_BITS; i++)
- if (flushing & (1 << i))
- ci->i_cap_flush_tid[i] = flush_tid;
-
- follows = ci->i_head_snapc->seq;
- } else {
- follows = 0;
- }
+ follows = flushing ? ci->i_head_snapc->seq : 0;
keep = cap->implemented;
seq = cap->seq;
@@ -1237,7 +1196,8 @@
spin_unlock(&ci->i_ceph_lock);
ret = send_cap_msg(session, ceph_vino(inode).ino, cap_id,
- op, keep, want, flushing, seq, flush_tid, issue_seq, mseq,
+ op, keep, want, flushing, seq,
+ flush_tid, oldest_flush_tid, issue_seq, mseq,
size, max_size, &mtime, &atime, time_warp_seq,
uid, gid, mode, xattr_version, xattr_blob,
follows, inline_data);
@@ -1259,14 +1219,14 @@
* asynchronously back to the MDS once sync writes complete and dirty
* data is written out.
*
- * Unless @again is true, skip cap_snaps that were already sent to
+ * Unless @kick is true, skip cap_snaps that were already sent to
* the MDS (i.e., during this session).
*
* Called under i_ceph_lock. Takes s_mutex as needed.
*/
void __ceph_flush_snaps(struct ceph_inode_info *ci,
struct ceph_mds_session **psession,
- int again)
+ int kick)
__releases(ci->i_ceph_lock)
__acquires(ci->i_ceph_lock)
{
@@ -1297,11 +1257,8 @@
if (capsnap->dirty_pages || capsnap->writing)
break;
- /*
- * if cap writeback already occurred, we should have dropped
- * the capsnap in ceph_put_wrbuffer_cap_refs.
- */
- BUG_ON(capsnap->dirty == 0);
+ /* should be removed by ceph_try_drop_cap_snap() */
+ BUG_ON(!capsnap->need_flush);
/* pick mds, take s_mutex */
if (ci->i_auth_cap == NULL) {
@@ -1310,7 +1267,7 @@
}
/* only flush each capsnap once */
- if (!again && !list_empty(&capsnap->flushing_item)) {
+ if (!kick && !list_empty(&capsnap->flushing_item)) {
dout("already flushed %p, skipping\n", capsnap);
continue;
}
@@ -1320,6 +1277,9 @@
if (session && session->s_mds != mds) {
dout("oops, wrong session %p mutex\n", session);
+ if (kick)
+ goto out;
+
mutex_unlock(&session->s_mutex);
ceph_put_mds_session(session);
session = NULL;
@@ -1343,20 +1303,22 @@
goto retry;
}
- capsnap->flush_tid = ++ci->i_cap_flush_last_tid;
+ spin_lock(&mdsc->cap_dirty_lock);
+ capsnap->flush_tid = ++mdsc->last_cap_flush_tid;
+ spin_unlock(&mdsc->cap_dirty_lock);
+
atomic_inc(&capsnap->nref);
- if (!list_empty(&capsnap->flushing_item))
- list_del_init(&capsnap->flushing_item);
- list_add_tail(&capsnap->flushing_item,
- &session->s_cap_snaps_flushing);
+ if (list_empty(&capsnap->flushing_item))
+ list_add_tail(&capsnap->flushing_item,
+ &session->s_cap_snaps_flushing);
spin_unlock(&ci->i_ceph_lock);
dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
inode, capsnap, capsnap->follows, capsnap->flush_tid);
send_cap_msg(session, ceph_vino(inode).ino, 0,
CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
- capsnap->dirty, 0, capsnap->flush_tid, 0, mseq,
- capsnap->size, 0,
+ capsnap->dirty, 0, capsnap->flush_tid, 0,
+ 0, mseq, capsnap->size, 0,
&capsnap->mtime, &capsnap->atime,
capsnap->time_warp_seq,
capsnap->uid, capsnap->gid, capsnap->mode,
@@ -1396,7 +1358,8 @@
* Caller is then responsible for calling __mark_inode_dirty with the
* returned flags value.
*/
-int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask)
+int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask,
+ struct ceph_cap_flush **pcf)
{
struct ceph_mds_client *mdsc =
ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
@@ -1416,9 +1379,14 @@
ceph_cap_string(was | mask));
ci->i_dirty_caps |= mask;
if (was == 0) {
- if (!ci->i_head_snapc)
+ WARN_ON_ONCE(ci->i_prealloc_cap_flush);
+ swap(ci->i_prealloc_cap_flush, *pcf);
+
+ if (!ci->i_head_snapc) {
+ WARN_ON_ONCE(!rwsem_is_locked(&mdsc->snap_rwsem));
ci->i_head_snapc = ceph_get_snap_context(
ci->i_snap_realm->cached_context);
+ }
dout(" inode %p now dirty snapc %p auth cap %p\n",
&ci->vfs_inode, ci->i_head_snapc, ci->i_auth_cap);
BUG_ON(!list_empty(&ci->i_dirty_item));
@@ -1429,6 +1397,8 @@
ihold(inode);
dirty |= I_DIRTY_SYNC;
}
+ } else {
+ WARN_ON_ONCE(!ci->i_prealloc_cap_flush);
}
BUG_ON(list_empty(&ci->i_dirty_item));
if (((was | ci->i_flushing_caps) & CEPH_CAP_FILE_BUFFER) &&
@@ -1438,6 +1408,74 @@
return dirty;
}
+static void __add_cap_flushing_to_inode(struct ceph_inode_info *ci,
+ struct ceph_cap_flush *cf)
+{
+ struct rb_node **p = &ci->i_cap_flush_tree.rb_node;
+ struct rb_node *parent = NULL;
+ struct ceph_cap_flush *other = NULL;
+
+ while (*p) {
+ parent = *p;
+ other = rb_entry(parent, struct ceph_cap_flush, i_node);
+
+ if (cf->tid < other->tid)
+ p = &(*p)->rb_left;
+ else if (cf->tid > other->tid)
+ p = &(*p)->rb_right;
+ else
+ BUG();
+ }
+
+ rb_link_node(&cf->i_node, parent, p);
+ rb_insert_color(&cf->i_node, &ci->i_cap_flush_tree);
+}
+
+static void __add_cap_flushing_to_mdsc(struct ceph_mds_client *mdsc,
+ struct ceph_cap_flush *cf)
+{
+ struct rb_node **p = &mdsc->cap_flush_tree.rb_node;
+ struct rb_node *parent = NULL;
+ struct ceph_cap_flush *other = NULL;
+
+ while (*p) {
+ parent = *p;
+ other = rb_entry(parent, struct ceph_cap_flush, g_node);
+
+ if (cf->tid < other->tid)
+ p = &(*p)->rb_left;
+ else if (cf->tid > other->tid)
+ p = &(*p)->rb_right;
+ else
+ BUG();
+ }
+
+ rb_link_node(&cf->g_node, parent, p);
+ rb_insert_color(&cf->g_node, &mdsc->cap_flush_tree);
+}
+
+struct ceph_cap_flush *ceph_alloc_cap_flush(void)
+{
+ return kmem_cache_alloc(ceph_cap_flush_cachep, GFP_KERNEL);
+}
+
+void ceph_free_cap_flush(struct ceph_cap_flush *cf)
+{
+ if (cf)
+ kmem_cache_free(ceph_cap_flush_cachep, cf);
+}
+
+static u64 __get_oldest_flush_tid(struct ceph_mds_client *mdsc)
+{
+ struct rb_node *n = rb_first(&mdsc->cap_flush_tree);
+ if (n) {
+ struct ceph_cap_flush *cf =
+ rb_entry(n, struct ceph_cap_flush, g_node);
+ return cf->tid;
+ }
+ return 0;
+}
+
/*
* Add dirty inode to the flushing list. Assigned a seq number so we
* can wait for caps to flush without starving.
@@ -1445,14 +1483,17 @@
* Called under i_ceph_lock.
*/
static int __mark_caps_flushing(struct inode *inode,
- struct ceph_mds_session *session)
+ struct ceph_mds_session *session,
+ u64 *flush_tid, u64 *oldest_flush_tid)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_cap_flush *cf = NULL;
int flushing;
BUG_ON(ci->i_dirty_caps == 0);
BUG_ON(list_empty(&ci->i_dirty_item));
+ BUG_ON(!ci->i_prealloc_cap_flush);
flushing = ci->i_dirty_caps;
dout("__mark_caps_flushing flushing %s, flushing_caps %s -> %s\n",
@@ -1463,22 +1504,31 @@
ci->i_dirty_caps = 0;
dout(" inode %p now !dirty\n", inode);
+ swap(cf, ci->i_prealloc_cap_flush);
+ cf->caps = flushing;
+ cf->kick = false;
+
spin_lock(&mdsc->cap_dirty_lock);
list_del_init(&ci->i_dirty_item);
+ cf->tid = ++mdsc->last_cap_flush_tid;
+ __add_cap_flushing_to_mdsc(mdsc, cf);
+ *oldest_flush_tid = __get_oldest_flush_tid(mdsc);
+
if (list_empty(&ci->i_flushing_item)) {
- ci->i_cap_flush_seq = ++mdsc->cap_flush_seq;
list_add_tail(&ci->i_flushing_item, &session->s_cap_flushing);
mdsc->num_cap_flushing++;
- dout(" inode %p now flushing seq %lld\n", inode,
- ci->i_cap_flush_seq);
+ dout(" inode %p now flushing tid %llu\n", inode, cf->tid);
} else {
list_move_tail(&ci->i_flushing_item, &session->s_cap_flushing);
- dout(" inode %p now flushing (more) seq %lld\n", inode,
- ci->i_cap_flush_seq);
+ dout(" inode %p now flushing (more) tid %llu\n",
+ inode, cf->tid);
}
spin_unlock(&mdsc->cap_dirty_lock);
+ __add_cap_flushing_to_inode(ci, cf);
+
+ *flush_tid = cf->tid;
return flushing;
}
@@ -1524,6 +1574,7 @@
struct ceph_mds_client *mdsc = fsc->mdsc;
struct inode *inode = &ci->vfs_inode;
struct ceph_cap *cap;
+ u64 flush_tid, oldest_flush_tid;
int file_wanted, used, cap_used;
int took_snap_rwsem = 0; /* true if mdsc->snap_rwsem held */
int issued, implemented, want, retain, revoking, flushing = 0;
@@ -1553,13 +1604,13 @@
retry_locked:
file_wanted = __ceph_caps_file_wanted(ci);
used = __ceph_caps_used(ci);
- want = file_wanted | used;
issued = __ceph_caps_issued(ci, &implemented);
revoking = implemented & ~issued;
- retain = want | CEPH_CAP_PIN;
+ want = file_wanted;
+ retain = file_wanted | used | CEPH_CAP_PIN;
if (!mdsc->stopping && inode->i_nlink > 0) {
- if (want) {
+ if (file_wanted) {
retain |= CEPH_CAP_ANY; /* be greedy */
} else if (S_ISDIR(inode->i_mode) &&
(issued & CEPH_CAP_FILE_SHARED) &&
@@ -1602,9 +1653,10 @@
* If we fail, it's because pages are locked.... try again later.
*/
if ((!is_delayed || mdsc->stopping) &&
- ci->i_wrbuffer_ref == 0 && /* no dirty pages... */
- inode->i_data.nrpages && /* have cached pages */
- (file_wanted == 0 || /* no open files */
+ !S_ISDIR(inode->i_mode) && /* ignore readdir cache */
+ ci->i_wrbuffer_ref == 0 && /* no dirty pages... */
+ inode->i_data.nrpages && /* have cached pages */
+ (file_wanted == 0 || /* no open files */
(revoking & (CEPH_CAP_FILE_CACHE|
CEPH_CAP_FILE_LAZYIO))) && /* or revoking cache */
!tried_invalidate) {
@@ -1742,17 +1794,25 @@
took_snap_rwsem = 1;
}
- if (cap == ci->i_auth_cap && ci->i_dirty_caps)
- flushing = __mark_caps_flushing(inode, session);
- else
+ if (cap == ci->i_auth_cap && ci->i_dirty_caps) {
+ flushing = __mark_caps_flushing(inode, session,
+ &flush_tid,
+ &oldest_flush_tid);
+ } else {
flushing = 0;
+ flush_tid = 0;
+ spin_lock(&mdsc->cap_dirty_lock);
+ oldest_flush_tid = __get_oldest_flush_tid(mdsc);
+ spin_unlock(&mdsc->cap_dirty_lock);
+ }
mds = cap->mds; /* remember mds, so we don't repeat */
sent++;
/* __send_cap drops i_ceph_lock */
delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, cap_used,
- want, retain, flushing, NULL);
+ want, retain, flushing,
+ flush_tid, oldest_flush_tid);
goto retry; /* retake i_ceph_lock and restart our cap scan. */
}
@@ -1781,12 +1841,13 @@
/*
* Try to flush dirty caps back to the auth mds.
*/
-static int try_flush_caps(struct inode *inode, unsigned *flush_tid)
+static int try_flush_caps(struct inode *inode, u64 *ptid)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_inode_info *ci = ceph_inode(inode);
- int flushing = 0;
struct ceph_mds_session *session = NULL;
+ int flushing = 0;
+ u64 flush_tid = 0, oldest_flush_tid = 0;
retry:
spin_lock(&ci->i_ceph_lock);
@@ -1811,42 +1872,54 @@
if (cap->session->s_state < CEPH_MDS_SESSION_OPEN)
goto out;
- flushing = __mark_caps_flushing(inode, session);
+ flushing = __mark_caps_flushing(inode, session, &flush_tid,
+ &oldest_flush_tid);
/* __send_cap drops i_ceph_lock */
delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH, used, want,
- cap->issued | cap->implemented, flushing,
- flush_tid);
- if (!delayed)
- goto out_unlocked;
+ (cap->issued | cap->implemented),
+ flushing, flush_tid, oldest_flush_tid);
- spin_lock(&ci->i_ceph_lock);
- __cap_delay_requeue(mdsc, ci);
+ if (delayed) {
+ spin_lock(&ci->i_ceph_lock);
+ __cap_delay_requeue(mdsc, ci);
+ spin_unlock(&ci->i_ceph_lock);
+ }
+ } else {
+ struct rb_node *n = rb_last(&ci->i_cap_flush_tree);
+ if (n) {
+ struct ceph_cap_flush *cf =
+ rb_entry(n, struct ceph_cap_flush, i_node);
+ flush_tid = cf->tid;
+ }
+ flushing = ci->i_flushing_caps;
+ spin_unlock(&ci->i_ceph_lock);
}
out:
- spin_unlock(&ci->i_ceph_lock);
-out_unlocked:
if (session)
mutex_unlock(&session->s_mutex);
+
+ *ptid = flush_tid;
return flushing;
}
/*
* Return true if we've flushed caps through the given flush_tid.
*/
-static int caps_are_flushed(struct inode *inode, unsigned tid)
+static int caps_are_flushed(struct inode *inode, u64 flush_tid)
{
struct ceph_inode_info *ci = ceph_inode(inode);
- int i, ret = 1;
+ struct ceph_cap_flush *cf;
+ struct rb_node *n;
+ int ret = 1;
spin_lock(&ci->i_ceph_lock);
- for (i = 0; i < CEPH_CAP_BITS; i++)
- if ((ci->i_flushing_caps & (1 << i)) &&
- ci->i_cap_flush_tid[i] <= tid) {
- /* still flushing this bit */
+ n = rb_first(&ci->i_cap_flush_tree);
+ if (n) {
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ if (cf->tid <= flush_tid)
ret = 0;
- break;
- }
+ }
spin_unlock(&ci->i_ceph_lock);
return ret;
}
@@ -1864,13 +1937,16 @@
struct ceph_osd_request *req;
u64 last_tid;
+ if (!S_ISREG(inode->i_mode))
+ return;
+
spin_lock(&ci->i_unsafe_lock);
if (list_empty(head))
goto out;
/* set upper bound as _last_ entry in chain */
- req = list_entry(head->prev, struct ceph_osd_request,
- r_unsafe_item);
+ req = list_last_entry(head, struct ceph_osd_request,
+ r_unsafe_item);
last_tid = req->r_tid;
do {
@@ -1888,18 +1964,64 @@
*/
if (list_empty(head))
break;
- req = list_entry(head->next, struct ceph_osd_request,
- r_unsafe_item);
+ req = list_first_entry(head, struct ceph_osd_request,
+ r_unsafe_item);
} while (req->r_tid < last_tid);
out:
spin_unlock(&ci->i_unsafe_lock);
}
+/*
+ * wait for any uncommitted directory operations to commit.
+ */
+static int unsafe_dirop_wait(struct inode *inode)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct list_head *head = &ci->i_unsafe_dirops;
+ struct ceph_mds_request *req;
+ u64 last_tid;
+ int ret = 0;
+
+ if (!S_ISDIR(inode->i_mode))
+ return 0;
+
+ spin_lock(&ci->i_unsafe_lock);
+ if (list_empty(head))
+ goto out;
+
+ req = list_last_entry(head, struct ceph_mds_request,
+ r_unsafe_dir_item);
+ last_tid = req->r_tid;
+
+ do {
+ ceph_mdsc_get_request(req);
+ spin_unlock(&ci->i_unsafe_lock);
+
+ dout("unsafe_dirop_wait %p wait on tid %llu (until %llu)\n",
+ inode, req->r_tid, last_tid);
+ ret = !wait_for_completion_timeout(&req->r_safe_completion,
+ ceph_timeout_jiffies(req->r_timeout));
+ if (ret)
+ ret = -EIO; /* timed out */
+
+ ceph_mdsc_put_request(req);
+
+ spin_lock(&ci->i_unsafe_lock);
+ if (ret || list_empty(head))
+ break;
+ req = list_first_entry(head, struct ceph_mds_request,
+ r_unsafe_dir_item);
+ } while (req->r_tid < last_tid);
+out:
+ spin_unlock(&ci->i_unsafe_lock);
+ return ret;
+}
+
int ceph_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
struct inode *inode = file->f_mapping->host;
struct ceph_inode_info *ci = ceph_inode(inode);
- unsigned flush_tid;
+ u64 flush_tid;
int ret;
int dirty;
@@ -1908,25 +2030,30 @@
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (ret < 0)
- return ret;
+ goto out;
+
+ if (datasync)
+ goto out;
+
mutex_lock(&inode->i_mutex);
dirty = try_flush_caps(inode, &flush_tid);
dout("fsync dirty caps are %s\n", ceph_cap_string(dirty));
+ ret = unsafe_dirop_wait(inode);
+
/*
* only wait on non-file metadata writeback (the mds
* can recover size and mtime, so we don't need to
* wait for that)
*/
- if (!datasync && (dirty & ~CEPH_CAP_ANY_FILE_WR)) {
- dout("fsync waiting for flush_tid %u\n", flush_tid);
+ if (!ret && (dirty & ~CEPH_CAP_ANY_FILE_WR)) {
ret = wait_event_interruptible(ci->i_cap_wq,
- caps_are_flushed(inode, flush_tid));
+ caps_are_flushed(inode, flush_tid));
}
-
- dout("fsync %p%s done\n", inode, datasync ? " datasync" : "");
mutex_unlock(&inode->i_mutex);
+out:
+ dout("fsync %p%s result=%d\n", inode, datasync ? " datasync" : "", ret);
return ret;
}
@@ -1939,7 +2066,7 @@
int ceph_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct ceph_inode_info *ci = ceph_inode(inode);
- unsigned flush_tid;
+ u64 flush_tid;
int err = 0;
int dirty;
int wait = wbc->sync_mode == WB_SYNC_ALL;
@@ -1994,6 +2121,104 @@
}
}
+static int __kick_flushing_caps(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session,
+ struct ceph_inode_info *ci,
+ bool kick_all)
+{
+ struct inode *inode = &ci->vfs_inode;
+ struct ceph_cap *cap;
+ struct ceph_cap_flush *cf;
+ struct rb_node *n;
+ int delayed = 0;
+ u64 first_tid = 0;
+ u64 oldest_flush_tid;
+
+ spin_lock(&mdsc->cap_dirty_lock);
+ oldest_flush_tid = __get_oldest_flush_tid(mdsc);
+ spin_unlock(&mdsc->cap_dirty_lock);
+
+ while (true) {
+ spin_lock(&ci->i_ceph_lock);
+ cap = ci->i_auth_cap;
+ if (!(cap && cap->session == session)) {
+ pr_err("%p auth cap %p not mds%d ???\n", inode,
+ cap, session->s_mds);
+ spin_unlock(&ci->i_ceph_lock);
+ break;
+ }
+
+ for (n = rb_first(&ci->i_cap_flush_tree); n; n = rb_next(n)) {
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ if (cf->tid < first_tid)
+ continue;
+ if (kick_all || cf->kick)
+ break;
+ }
+ if (!n) {
+ spin_unlock(&ci->i_ceph_lock);
+ break;
+ }
+
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ cf->kick = false;
+
+ first_tid = cf->tid + 1;
+
+ dout("kick_flushing_caps %p cap %p tid %llu %s\n", inode,
+ cap, cf->tid, ceph_cap_string(cf->caps));
+ delayed |= __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH,
+ __ceph_caps_used(ci),
+ __ceph_caps_wanted(ci),
+ cap->issued | cap->implemented,
+ cf->caps, cf->tid, oldest_flush_tid);
+ }
+ return delayed;
+}
+
+void ceph_early_kick_flushing_caps(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session)
+{
+ struct ceph_inode_info *ci;
+ struct ceph_cap *cap;
+ struct ceph_cap_flush *cf;
+ struct rb_node *n;
+
+ dout("early_kick_flushing_caps mds%d\n", session->s_mds);
+ list_for_each_entry(ci, &session->s_cap_flushing, i_flushing_item) {
+ spin_lock(&ci->i_ceph_lock);
+ cap = ci->i_auth_cap;
+ if (!(cap && cap->session == session)) {
+ pr_err("%p auth cap %p not mds%d ???\n",
+ &ci->vfs_inode, cap, session->s_mds);
+ spin_unlock(&ci->i_ceph_lock);
+ continue;
+ }
+
+
+ /*
+ * if flushing caps were revoked, we re-send the cap flush
+ * in client reconnect stage. This guarantees MDS * processes
+ * the cap flush message before issuing the flushing caps to
+ * other client.
+ */
+ if ((cap->issued & ci->i_flushing_caps) !=
+ ci->i_flushing_caps) {
+ spin_unlock(&ci->i_ceph_lock);
+ if (!__kick_flushing_caps(mdsc, session, ci, true))
+ continue;
+ spin_lock(&ci->i_ceph_lock);
+ }
+
+ for (n = rb_first(&ci->i_cap_flush_tree); n; n = rb_next(n)) {
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ cf->kick = true;
+ }
+
+ spin_unlock(&ci->i_ceph_lock);
+ }
+}
+
void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session)
{
@@ -2003,28 +2228,10 @@
dout("kick_flushing_caps mds%d\n", session->s_mds);
list_for_each_entry(ci, &session->s_cap_flushing, i_flushing_item) {
- struct inode *inode = &ci->vfs_inode;
- struct ceph_cap *cap;
- int delayed = 0;
-
- spin_lock(&ci->i_ceph_lock);
- cap = ci->i_auth_cap;
- if (cap && cap->session == session) {
- dout("kick_flushing_caps %p cap %p %s\n", inode,
- cap, ceph_cap_string(ci->i_flushing_caps));
- delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH,
- __ceph_caps_used(ci),
- __ceph_caps_wanted(ci),
- cap->issued | cap->implemented,
- ci->i_flushing_caps, NULL);
- if (delayed) {
- spin_lock(&ci->i_ceph_lock);
- __cap_delay_requeue(mdsc, ci);
- spin_unlock(&ci->i_ceph_lock);
- }
- } else {
- pr_err("%p auth cap %p not mds%d ???\n", inode,
- cap, session->s_mds);
+ int delayed = __kick_flushing_caps(mdsc, session, ci, false);
+ if (delayed) {
+ spin_lock(&ci->i_ceph_lock);
+ __cap_delay_requeue(mdsc, ci);
spin_unlock(&ci->i_ceph_lock);
}
}
@@ -2036,26 +2243,25 @@
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_cap *cap;
- int delayed = 0;
spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
- dout("kick_flushing_inode_caps %p flushing %s flush_seq %lld\n", inode,
- ceph_cap_string(ci->i_flushing_caps), ci->i_cap_flush_seq);
+ dout("kick_flushing_inode_caps %p flushing %s\n", inode,
+ ceph_cap_string(ci->i_flushing_caps));
__ceph_flush_snaps(ci, &session, 1);
if (ci->i_flushing_caps) {
+ int delayed;
+
spin_lock(&mdsc->cap_dirty_lock);
list_move_tail(&ci->i_flushing_item,
&cap->session->s_cap_flushing);
spin_unlock(&mdsc->cap_dirty_lock);
- delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH,
- __ceph_caps_used(ci),
- __ceph_caps_wanted(ci),
- cap->issued | cap->implemented,
- ci->i_flushing_caps, NULL);
+ spin_unlock(&ci->i_ceph_lock);
+
+ delayed = __kick_flushing_caps(mdsc, session, ci, true);
if (delayed) {
spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
@@ -2073,7 +2279,8 @@
*
* Protected by i_ceph_lock.
*/
-static void __take_cap_refs(struct ceph_inode_info *ci, int got)
+static void __take_cap_refs(struct ceph_inode_info *ci, int got,
+ bool snap_rwsem_locked)
{
if (got & CEPH_CAP_PIN)
ci->i_pin_ref++;
@@ -2081,8 +2288,14 @@
ci->i_rd_ref++;
if (got & CEPH_CAP_FILE_CACHE)
ci->i_rdcache_ref++;
- if (got & CEPH_CAP_FILE_WR)
+ if (got & CEPH_CAP_FILE_WR) {
+ if (ci->i_wr_ref == 0 && !ci->i_head_snapc) {
+ BUG_ON(!snap_rwsem_locked);
+ ci->i_head_snapc = ceph_get_snap_context(
+ ci->i_snap_realm->cached_context);
+ }
ci->i_wr_ref++;
+ }
if (got & CEPH_CAP_FILE_BUFFER) {
if (ci->i_wb_ref == 0)
ihold(&ci->vfs_inode);
@@ -2100,16 +2313,19 @@
* requested from the MDS.
*/
static int try_get_cap_refs(struct ceph_inode_info *ci, int need, int want,
- loff_t endoff, int *got, int *check_max, int *err)
+ loff_t endoff, bool nonblock, int *got, int *err)
{
struct inode *inode = &ci->vfs_inode;
+ struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
int ret = 0;
int have, implemented;
int file_wanted;
+ bool snap_rwsem_locked = false;
dout("get_cap_refs %p need %s want %s\n", inode,
ceph_cap_string(need), ceph_cap_string(want));
+again:
spin_lock(&ci->i_ceph_lock);
/* make sure file is actually open */
@@ -2125,6 +2341,10 @@
/* finish pending truncate */
while (ci->i_truncate_pending) {
spin_unlock(&ci->i_ceph_lock);
+ if (snap_rwsem_locked) {
+ up_read(&mdsc->snap_rwsem);
+ snap_rwsem_locked = false;
+ }
__ceph_do_pending_vmtruncate(inode);
spin_lock(&ci->i_ceph_lock);
}
@@ -2136,7 +2356,7 @@
dout("get_cap_refs %p endoff %llu > maxsize %llu\n",
inode, endoff, ci->i_max_size);
if (endoff > ci->i_requested_max_size) {
- *check_max = 1;
+ *err = -EAGAIN;
ret = 1;
}
goto out_unlock;
@@ -2164,8 +2384,29 @@
inode, ceph_cap_string(have), ceph_cap_string(not),
ceph_cap_string(revoking));
if ((revoking & not) == 0) {
+ if (!snap_rwsem_locked &&
+ !ci->i_head_snapc &&
+ (need & CEPH_CAP_FILE_WR)) {
+ if (!down_read_trylock(&mdsc->snap_rwsem)) {
+ /*
+ * we can not call down_read() when
+ * task isn't in TASK_RUNNING state
+ */
+ if (nonblock) {
+ *err = -EAGAIN;
+ ret = 1;
+ goto out_unlock;
+ }
+
+ spin_unlock(&ci->i_ceph_lock);
+ down_read(&mdsc->snap_rwsem);
+ snap_rwsem_locked = true;
+ goto again;
+ }
+ snap_rwsem_locked = true;
+ }
*got = need | (have & want);
- __take_cap_refs(ci, *got);
+ __take_cap_refs(ci, *got, true);
ret = 1;
}
} else {
@@ -2189,6 +2430,8 @@
}
out_unlock:
spin_unlock(&ci->i_ceph_lock);
+ if (snap_rwsem_locked)
+ up_read(&mdsc->snap_rwsem);
dout("get_cap_refs %p ret %d got %s\n", inode,
ret, ceph_cap_string(*got));
@@ -2231,50 +2474,70 @@
int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
loff_t endoff, int *got, struct page **pinned_page)
{
- int _got, check_max, ret, err = 0;
+ int _got, ret, err = 0;
-retry:
- if (endoff > 0)
- check_max_size(&ci->vfs_inode, endoff);
- _got = 0;
- check_max = 0;
- ret = wait_event_interruptible(ci->i_cap_wq,
- try_get_cap_refs(ci, need, want, endoff,
- &_got, &check_max, &err));
- if (err)
- ret = err;
+ ret = ceph_pool_perm_check(ci, need);
if (ret < 0)
return ret;
- if (check_max)
- goto retry;
+ while (true) {
+ if (endoff > 0)
+ check_max_size(&ci->vfs_inode, endoff);
- if (ci->i_inline_version != CEPH_INLINE_NONE &&
- (_got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) &&
- i_size_read(&ci->vfs_inode) > 0) {
- struct page *page = find_get_page(ci->vfs_inode.i_mapping, 0);
- if (page) {
- if (PageUptodate(page)) {
- *pinned_page = page;
- goto out;
- }
- page_cache_release(page);
- }
- /*
- * drop cap refs first because getattr while holding
- * caps refs can cause deadlock.
- */
- ceph_put_cap_refs(ci, _got);
+ err = 0;
_got = 0;
+ ret = try_get_cap_refs(ci, need, want, endoff,
+ false, &_got, &err);
+ if (ret) {
+ if (err == -EAGAIN)
+ continue;
+ if (err < 0)
+ return err;
+ } else {
+ ret = wait_event_interruptible(ci->i_cap_wq,
+ try_get_cap_refs(ci, need, want, endoff,
+ true, &_got, &err));
+ if (err == -EAGAIN)
+ continue;
+ if (err < 0)
+ ret = err;
+ if (ret < 0)
+ return ret;
+ }
- /* getattr request will bring inline data into page cache */
- ret = __ceph_do_getattr(&ci->vfs_inode, NULL,
- CEPH_STAT_CAP_INLINE_DATA, true);
- if (ret < 0)
- return ret;
- goto retry;
+ if (ci->i_inline_version != CEPH_INLINE_NONE &&
+ (_got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) &&
+ i_size_read(&ci->vfs_inode) > 0) {
+ struct page *page =
+ find_get_page(ci->vfs_inode.i_mapping, 0);
+ if (page) {
+ if (PageUptodate(page)) {
+ *pinned_page = page;
+ break;
+ }
+ page_cache_release(page);
+ }
+ /*
+ * drop cap refs first because getattr while
+ * holding * caps refs can cause deadlock.
+ */
+ ceph_put_cap_refs(ci, _got);
+ _got = 0;
+
+ /*
+ * getattr request will bring inline data into
+ * page cache
+ */
+ ret = __ceph_do_getattr(&ci->vfs_inode, NULL,
+ CEPH_STAT_CAP_INLINE_DATA,
+ true);
+ if (ret < 0)
+ return ret;
+ continue;
+ }
+ break;
}
-out:
+
*got = _got;
return 0;
}
@@ -2286,10 +2549,31 @@
void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps)
{
spin_lock(&ci->i_ceph_lock);
- __take_cap_refs(ci, caps);
+ __take_cap_refs(ci, caps, false);
spin_unlock(&ci->i_ceph_lock);
}
+
+/*
+ * drop cap_snap that is not associated with any snapshot.
+ * we don't need to send FLUSHSNAP message for it.
+ */
+static int ceph_try_drop_cap_snap(struct ceph_cap_snap *capsnap)
+{
+ if (!capsnap->need_flush &&
+ !capsnap->writing && !capsnap->dirty_pages) {
+
+ dout("dropping cap_snap %p follows %llu\n",
+ capsnap, capsnap->follows);
+ ceph_put_snap_context(capsnap->context);
+ list_del(&capsnap->ci_item);
+ list_del(&capsnap->flushing_item);
+ ceph_put_cap_snap(capsnap);
+ return 1;
+ }
+ return 0;
+}
+
/*
* Release cap refs.
*
@@ -2303,7 +2587,6 @@
{
struct inode *inode = &ci->vfs_inode;
int last = 0, put = 0, flushsnaps = 0, wake = 0;
- struct ceph_cap_snap *capsnap;
spin_lock(&ci->i_ceph_lock);
if (had & CEPH_CAP_PIN)
@@ -2325,17 +2608,24 @@
if (had & CEPH_CAP_FILE_WR)
if (--ci->i_wr_ref == 0) {
last++;
- if (!list_empty(&ci->i_cap_snaps)) {
- capsnap = list_first_entry(&ci->i_cap_snaps,
- struct ceph_cap_snap,
- ci_item);
- if (capsnap->writing) {
- capsnap->writing = 0;
- flushsnaps =
- __ceph_finish_cap_snap(ci,
- capsnap);
- wake = 1;
- }
+ if (__ceph_have_pending_cap_snap(ci)) {
+ struct ceph_cap_snap *capsnap =
+ list_last_entry(&ci->i_cap_snaps,
+ struct ceph_cap_snap,
+ ci_item);
+ capsnap->writing = 0;
+ if (ceph_try_drop_cap_snap(capsnap))
+ put++;
+ else if (__ceph_finish_cap_snap(ci, capsnap))
+ flushsnaps = 1;
+ wake = 1;
+ }
+ if (ci->i_wrbuffer_ref_head == 0 &&
+ ci->i_dirty_caps == 0 &&
+ ci->i_flushing_caps == 0) {
+ BUG_ON(!ci->i_head_snapc);
+ ceph_put_snap_context(ci->i_head_snapc);
+ ci->i_head_snapc = NULL;
}
/* see comment in __ceph_remove_cap() */
if (!__ceph_is_any_caps(ci) && ci->i_snap_realm)
@@ -2352,7 +2642,7 @@
ceph_flush_snaps(ci);
if (wake)
wake_up_all(&ci->i_cap_wq);
- if (put)
+ while (put-- > 0)
iput(inode);
}
@@ -2380,7 +2670,9 @@
if (ci->i_head_snapc == snapc) {
ci->i_wrbuffer_ref_head -= nr;
if (ci->i_wrbuffer_ref_head == 0 &&
- ci->i_dirty_caps == 0 && ci->i_flushing_caps == 0) {
+ ci->i_wr_ref == 0 &&
+ ci->i_dirty_caps == 0 &&
+ ci->i_flushing_caps == 0) {
BUG_ON(!ci->i_head_snapc);
ceph_put_snap_context(ci->i_head_snapc);
ci->i_head_snapc = NULL;
@@ -2401,25 +2693,15 @@
capsnap->dirty_pages -= nr;
if (capsnap->dirty_pages == 0) {
complete_capsnap = 1;
- if (capsnap->dirty == 0)
- /* cap writeback completed before we created
- * the cap_snap; no FLUSHSNAP is needed */
- drop_capsnap = 1;
+ drop_capsnap = ceph_try_drop_cap_snap(capsnap);
}
dout("put_wrbuffer_cap_refs on %p cap_snap %p "
- " snap %lld %d/%d -> %d/%d %s%s%s\n",
+ " snap %lld %d/%d -> %d/%d %s%s\n",
inode, capsnap, capsnap->context->seq,
ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,
ci->i_wrbuffer_ref, capsnap->dirty_pages,
last ? " (wrbuffer last)" : "",
- complete_capsnap ? " (complete capsnap)" : "",
- drop_capsnap ? " (drop capsnap)" : "");
- if (drop_capsnap) {
- ceph_put_snap_context(capsnap->context);
- list_del(&capsnap->ci_item);
- list_del(&capsnap->flushing_item);
- ceph_put_cap_snap(capsnap);
- }
+ complete_capsnap ? " (complete capsnap)" : "");
}
spin_unlock(&ci->i_ceph_lock);
@@ -2526,7 +2808,8 @@
* try to invalidate (once). (If there are dirty buffers, we
* will invalidate _after_ writeback.)
*/
- if (((cap->issued & ~newcaps) & CEPH_CAP_FILE_CACHE) &&
+ if (!S_ISDIR(inode->i_mode) && /* don't invalidate readdir cache */
+ ((cap->issued & ~newcaps) & CEPH_CAP_FILE_CACHE) &&
(newcaps & CEPH_CAP_FILE_LAZYIO) == 0 &&
!ci->i_wrbuffer_ref) {
if (try_nonblocking_invalidate(inode)) {
@@ -2732,16 +3015,29 @@
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+ struct ceph_cap_flush *cf;
+ struct rb_node *n;
+ LIST_HEAD(to_remove);
unsigned seq = le32_to_cpu(m->seq);
int dirty = le32_to_cpu(m->dirty);
int cleaned = 0;
int drop = 0;
- int i;
- for (i = 0; i < CEPH_CAP_BITS; i++)
- if ((dirty & (1 << i)) &&
- (u16)flush_tid == ci->i_cap_flush_tid[i])
- cleaned |= 1 << i;
+ n = rb_first(&ci->i_cap_flush_tree);
+ while (n) {
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ n = rb_next(&cf->i_node);
+ if (cf->tid == flush_tid)
+ cleaned = cf->caps;
+ if (cf->tid <= flush_tid) {
+ rb_erase(&cf->i_node, &ci->i_cap_flush_tree);
+ list_add_tail(&cf->list, &to_remove);
+ } else {
+ cleaned &= ~cf->caps;
+ if (!cleaned)
+ break;
+ }
+ }
dout("handle_cap_flush_ack inode %p mds%d seq %d on %s cleaned %s,"
" flushing %s -> %s\n",
@@ -2749,12 +3045,23 @@
ceph_cap_string(cleaned), ceph_cap_string(ci->i_flushing_caps),
ceph_cap_string(ci->i_flushing_caps & ~cleaned));
- if (ci->i_flushing_caps == (ci->i_flushing_caps & ~cleaned))
+ if (list_empty(&to_remove) && !cleaned)
goto out;
ci->i_flushing_caps &= ~cleaned;
spin_lock(&mdsc->cap_dirty_lock);
+
+ if (!list_empty(&to_remove)) {
+ list_for_each_entry(cf, &to_remove, list)
+ rb_erase(&cf->g_node, &mdsc->cap_flush_tree);
+
+ n = rb_first(&mdsc->cap_flush_tree);
+ cf = n ? rb_entry(n, struct ceph_cap_flush, g_node) : NULL;
+ if (!cf || cf->tid > flush_tid)
+ wake_up_all(&mdsc->cap_flushing_wq);
+ }
+
if (ci->i_flushing_caps == 0) {
list_del_init(&ci->i_flushing_item);
if (!list_empty(&session->s_cap_flushing))
@@ -2764,14 +3071,14 @@
struct ceph_inode_info,
i_flushing_item)->vfs_inode);
mdsc->num_cap_flushing--;
- wake_up_all(&mdsc->cap_flushing_wq);
dout(" inode %p now !flushing\n", inode);
if (ci->i_dirty_caps == 0) {
dout(" inode %p now clean\n", inode);
BUG_ON(!list_empty(&ci->i_dirty_item));
drop = 1;
- if (ci->i_wrbuffer_ref_head == 0) {
+ if (ci->i_wr_ref == 0 &&
+ ci->i_wrbuffer_ref_head == 0) {
BUG_ON(!ci->i_head_snapc);
ceph_put_snap_context(ci->i_head_snapc);
ci->i_head_snapc = NULL;
@@ -2785,6 +3092,13 @@
out:
spin_unlock(&ci->i_ceph_lock);
+
+ while (!list_empty(&to_remove)) {
+ cf = list_first_entry(&to_remove,
+ struct ceph_cap_flush, list);
+ list_del(&cf->list);
+ ceph_free_cap_flush(cf);
+ }
if (drop)
iput(inode);
}
@@ -2800,6 +3114,7 @@
struct ceph_mds_session *session)
{
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
u64 follows = le64_to_cpu(m->snap_follows);
struct ceph_cap_snap *capsnap;
int drop = 0;
@@ -2823,6 +3138,7 @@
list_del(&capsnap->ci_item);
list_del(&capsnap->flushing_item);
ceph_put_cap_snap(capsnap);
+ wake_up_all(&mdsc->cap_flushing_wq);
drop = 1;
break;
} else {
@@ -2971,7 +3287,6 @@
mutex_lock_nested(&session->s_mutex,
SINGLE_DEPTH_NESTING);
}
- ceph_add_cap_releases(mdsc, tsession);
new_cap = ceph_get_cap(mdsc, NULL);
} else {
WARN_ON(1);
@@ -3167,16 +3482,20 @@
dout(" mds%d seq %lld cap seq %u\n", session->s_mds, session->s_seq,
(unsigned)seq);
- if (op == CEPH_CAP_OP_IMPORT)
- ceph_add_cap_releases(mdsc, session);
-
if (!inode) {
dout(" i don't have ino %llx\n", vino.ino);
if (op == CEPH_CAP_OP_IMPORT) {
+ cap = ceph_get_cap(mdsc, NULL);
+ cap->cap_ino = vino.ino;
+ cap->queue_release = 1;
+ cap->cap_id = cap_id;
+ cap->mseq = mseq;
+ cap->seq = seq;
spin_lock(&session->s_cap_lock);
- __queue_cap_release(session, vino.ino, cap_id,
- mseq, seq);
+ list_add_tail(&cap->session_caps,
+ &session->s_cap_releases);
+ session->s_num_cap_releases++;
spin_unlock(&session->s_cap_lock);
}
goto flush_cap_releases;
@@ -3252,11 +3571,10 @@
flush_cap_releases:
/*
- * send any full release message to try to move things
+ * send any cap release message to try to move things
* along for the mds (who clearly thinks we still have this
* cap).
*/
- ceph_add_cap_releases(mdsc, session);
ceph_send_cap_releases(mdsc, session);
done:
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 4248307..9314b4e 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -38,7 +38,7 @@
if (dentry->d_fsdata)
return 0;
- di = kmem_cache_alloc(ceph_dentry_cachep, GFP_NOFS | __GFP_ZERO);
+ di = kmem_cache_alloc(ceph_dentry_cachep, GFP_KERNEL | __GFP_ZERO);
if (!di)
return -ENOMEM; /* oh well */
@@ -107,6 +107,27 @@
}
/*
+ * make note of the last dentry we read, so we can
+ * continue at the same lexicographical point,
+ * regardless of what dir changes take place on the
+ * server.
+ */
+static int note_last_dentry(struct ceph_file_info *fi, const char *name,
+ int len, unsigned next_offset)
+{
+ char *buf = kmalloc(len+1, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ kfree(fi->last_name);
+ fi->last_name = buf;
+ memcpy(fi->last_name, name, len);
+ fi->last_name[len] = 0;
+ fi->next_offset = next_offset;
+ dout("note_last_dentry '%s'\n", fi->last_name);
+ return 0;
+}
+
+/*
* When possible, we try to satisfy a readdir by peeking at the
* dcache. We make this work by carefully ordering dentries on
* d_child when we initially get results back from the MDS, and
@@ -123,123 +144,113 @@
struct ceph_file_info *fi = file->private_data;
struct dentry *parent = file->f_path.dentry;
struct inode *dir = d_inode(parent);
- struct list_head *p;
- struct dentry *dentry, *last;
+ struct dentry *dentry, *last = NULL;
struct ceph_dentry_info *di;
+ unsigned nsize = PAGE_CACHE_SIZE / sizeof(struct dentry *);
int err = 0;
+ loff_t ptr_pos = 0;
+ struct ceph_readdir_cache_control cache_ctl = {};
- /* claim ref on last dentry we returned */
- last = fi->dentry;
- fi->dentry = NULL;
+ dout("__dcache_readdir %p v%u at %llu\n", dir, shared_gen, ctx->pos);
- dout("__dcache_readdir %p v%u at %llu (last %p)\n",
- dir, shared_gen, ctx->pos, last);
-
- spin_lock(&parent->d_lock);
-
- /* start at beginning? */
- if (ctx->pos == 2 || last == NULL ||
- fpos_cmp(ctx->pos, ceph_dentry(last)->offset) < 0) {
- if (list_empty(&parent->d_subdirs))
- goto out_unlock;
- p = parent->d_subdirs.prev;
- dout(" initial p %p/%p\n", p->prev, p->next);
- } else {
- p = last->d_child.prev;
+ /* we can calculate cache index for the first dirfrag */
+ if (ceph_frag_is_leftmost(fpos_frag(ctx->pos))) {
+ cache_ctl.index = fpos_off(ctx->pos) - 2;
+ BUG_ON(cache_ctl.index < 0);
+ ptr_pos = cache_ctl.index * sizeof(struct dentry *);
}
-more:
- dentry = list_entry(p, struct dentry, d_child);
- di = ceph_dentry(dentry);
- while (1) {
- dout(" p %p/%p %s d_subdirs %p/%p\n", p->prev, p->next,
- d_unhashed(dentry) ? "!hashed" : "hashed",
- parent->d_subdirs.prev, parent->d_subdirs.next);
- if (p == &parent->d_subdirs) {
+ while (true) {
+ pgoff_t pgoff;
+ bool emit_dentry;
+
+ if (ptr_pos >= i_size_read(dir)) {
fi->flags |= CEPH_F_ATEND;
- goto out_unlock;
+ err = 0;
+ break;
}
- spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
+
+ err = -EAGAIN;
+ pgoff = ptr_pos >> PAGE_CACHE_SHIFT;
+ if (!cache_ctl.page || pgoff != page_index(cache_ctl.page)) {
+ ceph_readdir_cache_release(&cache_ctl);
+ cache_ctl.page = find_lock_page(&dir->i_data, pgoff);
+ if (!cache_ctl.page) {
+ dout(" page %lu not found\n", pgoff);
+ break;
+ }
+ /* reading/filling the cache are serialized by
+ * i_mutex, no need to use page lock */
+ unlock_page(cache_ctl.page);
+ cache_ctl.dentries = kmap(cache_ctl.page);
+ }
+
+ rcu_read_lock();
+ spin_lock(&parent->d_lock);
+ /* check i_size again here, because empty directory can be
+ * marked as complete while not holding the i_mutex. */
+ if (ceph_dir_is_complete_ordered(dir) &&
+ ptr_pos < i_size_read(dir))
+ dentry = cache_ctl.dentries[cache_ctl.index % nsize];
+ else
+ dentry = NULL;
+ spin_unlock(&parent->d_lock);
+ if (dentry && !lockref_get_not_dead(&dentry->d_lockref))
+ dentry = NULL;
+ rcu_read_unlock();
+ if (!dentry)
+ break;
+
+ emit_dentry = false;
+ di = ceph_dentry(dentry);
+ spin_lock(&dentry->d_lock);
if (di->lease_shared_gen == shared_gen &&
- !d_unhashed(dentry) && d_really_is_positive(dentry) &&
+ d_really_is_positive(dentry) &&
ceph_snap(d_inode(dentry)) != CEPH_SNAPDIR &&
ceph_ino(d_inode(dentry)) != CEPH_INO_CEPH &&
- fpos_cmp(ctx->pos, di->offset) <= 0)
- break;
- dout(" skipping %p %pd at %llu (%llu)%s%s\n", dentry,
- dentry, di->offset,
- ctx->pos, d_unhashed(dentry) ? " unhashed" : "",
- !d_inode(dentry) ? " null" : "");
- spin_unlock(&dentry->d_lock);
- p = p->prev;
- dentry = list_entry(p, struct dentry, d_child);
- di = ceph_dentry(dentry);
- }
-
- dget_dlock(dentry);
- spin_unlock(&dentry->d_lock);
- spin_unlock(&parent->d_lock);
-
- /* make sure a dentry wasn't dropped while we didn't have parent lock */
- if (!ceph_dir_is_complete_ordered(dir)) {
- dout(" lost dir complete on %p; falling back to mds\n", dir);
- dput(dentry);
- err = -EAGAIN;
- goto out;
- }
-
- dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
- dentry, dentry, d_inode(dentry));
- if (!dir_emit(ctx, dentry->d_name.name,
- dentry->d_name.len,
- ceph_translate_ino(dentry->d_sb, d_inode(dentry)->i_ino),
- d_inode(dentry)->i_mode >> 12)) {
- if (last) {
- /* remember our position */
- fi->dentry = last;
- fi->next_offset = fpos_off(di->offset);
+ fpos_cmp(ctx->pos, di->offset) <= 0) {
+ emit_dentry = true;
}
- dput(dentry);
- return 0;
+ spin_unlock(&dentry->d_lock);
+
+ if (emit_dentry) {
+ dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
+ dentry, dentry, d_inode(dentry));
+ ctx->pos = di->offset;
+ if (!dir_emit(ctx, dentry->d_name.name,
+ dentry->d_name.len,
+ ceph_translate_ino(dentry->d_sb,
+ d_inode(dentry)->i_ino),
+ d_inode(dentry)->i_mode >> 12)) {
+ dput(dentry);
+ err = 0;
+ break;
+ }
+ ctx->pos++;
+
+ if (last)
+ dput(last);
+ last = dentry;
+ } else {
+ dput(dentry);
+ }
+
+ cache_ctl.index++;
+ ptr_pos += sizeof(struct dentry *);
}
-
- ctx->pos = di->offset + 1;
-
- if (last)
+ ceph_readdir_cache_release(&cache_ctl);
+ if (last) {
+ int ret;
+ di = ceph_dentry(last);
+ ret = note_last_dentry(fi, last->d_name.name, last->d_name.len,
+ fpos_off(di->offset) + 1);
+ if (ret < 0)
+ err = ret;
dput(last);
- last = dentry;
-
- spin_lock(&parent->d_lock);
- p = p->prev; /* advance to next dentry */
- goto more;
-
-out_unlock:
- spin_unlock(&parent->d_lock);
-out:
- if (last)
- dput(last);
+ }
return err;
}
-/*
- * make note of the last dentry we read, so we can
- * continue at the same lexicographical point,
- * regardless of what dir changes take place on the
- * server.
- */
-static int note_last_dentry(struct ceph_file_info *fi, const char *name,
- int len)
-{
- kfree(fi->last_name);
- fi->last_name = kmalloc(len+1, GFP_NOFS);
- if (!fi->last_name)
- return -ENOMEM;
- memcpy(fi->last_name, name, len);
- fi->last_name[len] = 0;
- dout("note_last_dentry '%s'\n", fi->last_name);
- return 0;
-}
-
static int ceph_readdir(struct file *file, struct dir_context *ctx)
{
struct ceph_file_info *fi = file->private_data;
@@ -280,8 +291,7 @@
/* can we use the dcache? */
spin_lock(&ci->i_ceph_lock);
- if ((ctx->pos == 2 || fi->dentry) &&
- ceph_test_mount_opt(fsc, DCACHE) &&
+ if (ceph_test_mount_opt(fsc, DCACHE) &&
!ceph_test_mount_opt(fsc, NOASYNCREADDIR) &&
ceph_snap(inode) != CEPH_SNAPDIR &&
__ceph_dir_is_complete_ordered(ci) &&
@@ -296,24 +306,8 @@
} else {
spin_unlock(&ci->i_ceph_lock);
}
- if (fi->dentry) {
- err = note_last_dentry(fi, fi->dentry->d_name.name,
- fi->dentry->d_name.len);
- if (err)
- return err;
- dput(fi->dentry);
- fi->dentry = NULL;
- }
/* proceed with a normal readdir */
-
- if (ctx->pos == 2) {
- /* note dir version at start of readdir so we can tell
- * if any dentries get dropped */
- fi->dir_release_count = atomic_read(&ci->i_release_count);
- fi->dir_ordered_count = ci->i_ordered_count;
- }
-
more:
/* do we have the correct frag content buffered? */
if (fi->frag != frag || fi->last_readdir == NULL) {
@@ -342,12 +336,15 @@
req->r_direct_hash = ceph_frag_value(frag);
req->r_direct_is_hash = true;
if (fi->last_name) {
- req->r_path2 = kstrdup(fi->last_name, GFP_NOFS);
+ req->r_path2 = kstrdup(fi->last_name, GFP_KERNEL);
if (!req->r_path2) {
ceph_mdsc_put_request(req);
return -ENOMEM;
}
}
+ req->r_dir_release_cnt = fi->dir_release_count;
+ req->r_dir_ordered_cnt = fi->dir_ordered_count;
+ req->r_readdir_cache_idx = fi->readdir_cache_idx;
req->r_readdir_offset = fi->next_offset;
req->r_args.readdir.frag = cpu_to_le32(frag);
@@ -364,26 +361,38 @@
(int)req->r_reply_info.dir_end,
(int)req->r_reply_info.dir_complete);
- if (!req->r_did_prepopulate) {
- dout("readdir !did_prepopulate");
- /* preclude from marking dir complete */
- fi->dir_release_count--;
- }
/* note next offset and last dentry name */
rinfo = &req->r_reply_info;
if (le32_to_cpu(rinfo->dir_dir->frag) != frag) {
frag = le32_to_cpu(rinfo->dir_dir->frag);
- if (ceph_frag_is_leftmost(frag))
- fi->next_offset = 2;
- else
- fi->next_offset = 0;
- off = fi->next_offset;
+ off = req->r_readdir_offset;
+ fi->next_offset = off;
}
+
fi->frag = frag;
fi->offset = fi->next_offset;
fi->last_readdir = req;
+ if (req->r_did_prepopulate) {
+ fi->readdir_cache_idx = req->r_readdir_cache_idx;
+ if (fi->readdir_cache_idx < 0) {
+ /* preclude from marking dir ordered */
+ fi->dir_ordered_count = 0;
+ } else if (ceph_frag_is_leftmost(frag) && off == 2) {
+ /* note dir version at start of readdir so
+ * we can tell if any dentries get dropped */
+ fi->dir_release_count = req->r_dir_release_cnt;
+ fi->dir_ordered_count = req->r_dir_ordered_cnt;
+ }
+ } else {
+ dout("readdir !did_prepopulate");
+ /* disable readdir cache */
+ fi->readdir_cache_idx = -1;
+ /* preclude from marking dir complete */
+ fi->dir_release_count = 0;
+ }
+
if (req->r_reply_info.dir_end) {
kfree(fi->last_name);
fi->last_name = NULL;
@@ -394,10 +403,10 @@
} else {
err = note_last_dentry(fi,
rinfo->dir_dname[rinfo->dir_nr-1],
- rinfo->dir_dname_len[rinfo->dir_nr-1]);
+ rinfo->dir_dname_len[rinfo->dir_nr-1],
+ fi->next_offset + rinfo->dir_nr);
if (err)
return err;
- fi->next_offset += rinfo->dir_nr;
}
}
@@ -453,16 +462,22 @@
* were released during the whole readdir, and we should have
* the complete dir contents in our cache.
*/
- spin_lock(&ci->i_ceph_lock);
- if (atomic_read(&ci->i_release_count) == fi->dir_release_count) {
- if (ci->i_ordered_count == fi->dir_ordered_count)
+ if (atomic64_read(&ci->i_release_count) == fi->dir_release_count) {
+ spin_lock(&ci->i_ceph_lock);
+ if (fi->dir_ordered_count == atomic64_read(&ci->i_ordered_count)) {
dout(" marking %p complete and ordered\n", inode);
- else
+ /* use i_size to track number of entries in
+ * readdir cache */
+ BUG_ON(fi->readdir_cache_idx < 0);
+ i_size_write(inode, fi->readdir_cache_idx *
+ sizeof(struct dentry*));
+ } else {
dout(" marking %p complete\n", inode);
+ }
__ceph_dir_set_complete(ci, fi->dir_release_count,
fi->dir_ordered_count);
+ spin_unlock(&ci->i_ceph_lock);
}
- spin_unlock(&ci->i_ceph_lock);
dout("readdir %p file %p done.\n", inode, file);
return 0;
@@ -476,14 +491,12 @@
}
kfree(fi->last_name);
fi->last_name = NULL;
+ fi->dir_release_count = 0;
+ fi->readdir_cache_idx = -1;
if (ceph_frag_is_leftmost(frag))
fi->next_offset = 2; /* compensate for . and .. */
else
fi->next_offset = 0;
- if (fi->dentry) {
- dput(fi->dentry);
- fi->dentry = NULL;
- }
fi->flags &= ~CEPH_F_ATEND;
}
@@ -497,13 +510,12 @@
mutex_lock(&inode->i_mutex);
retval = -EINVAL;
switch (whence) {
- case SEEK_END:
- offset += inode->i_size + 2; /* FIXME */
- break;
case SEEK_CUR:
offset += file->f_pos;
case SEEK_SET:
break;
+ case SEEK_END:
+ retval = -EOPNOTSUPP;
default:
goto out;
}
@@ -516,20 +528,18 @@
}
retval = offset;
- /*
- * discard buffered readdir content on seekdir(0), or
- * seek to new frag, or seek prior to current chunk.
- */
if (offset == 0 ||
fpos_frag(offset) != fi->frag ||
fpos_off(offset) < fi->offset) {
+ /* discard buffered readdir content on seekdir(0), or
+ * seek to new frag, or seek prior to current chunk */
dout("dir_llseek dropping %p content\n", file);
reset_readdir(fi, fpos_frag(offset));
+ } else if (fpos_cmp(offset, old_offset) > 0) {
+ /* reset dir_release_count if we did a forward seek */
+ fi->dir_release_count = 0;
+ fi->readdir_cache_idx = -1;
}
-
- /* bump dir_release_count if we did a forward seek */
- if (fpos_cmp(offset, old_offset) > 0)
- fi->dir_release_count--;
}
out:
mutex_unlock(&inode->i_mutex);
@@ -764,7 +774,7 @@
err = PTR_ERR(req);
goto out;
}
- req->r_path2 = kstrdup(dest, GFP_NOFS);
+ req->r_path2 = kstrdup(dest, GFP_KERNEL);
if (!req->r_path2) {
err = -ENOMEM;
ceph_mdsc_put_request(req);
@@ -985,16 +995,15 @@
* to do it here.
*/
+ /* d_move screws up sibling dentries' offsets */
+ ceph_dir_clear_complete(old_dir);
+ ceph_dir_clear_complete(new_dir);
+
d_move(old_dentry, new_dentry);
/* ensure target dentry is invalidated, despite
rehashing bug in vfs_rename_dir */
ceph_invalidate_dentry_lease(new_dentry);
-
- /* d_move screws up sibling dentries' offsets */
- ceph_dir_clear_complete(old_dir);
- ceph_dir_clear_complete(new_dir);
-
}
ceph_mdsc_put_request(req);
return err;
@@ -1189,7 +1198,7 @@
return -EISDIR;
if (!cf->dir_info) {
- cf->dir_info = kmalloc(bufsize, GFP_NOFS);
+ cf->dir_info = kmalloc(bufsize, GFP_KERNEL);
if (!cf->dir_info)
return -ENOMEM;
cf->dir_info_len =
@@ -1224,66 +1233,6 @@
}
/*
- * an fsync() on a dir will wait for any uncommitted directory
- * operations to commit.
- */
-static int ceph_dir_fsync(struct file *file, loff_t start, loff_t end,
- int datasync)
-{
- struct inode *inode = file_inode(file);
- struct ceph_inode_info *ci = ceph_inode(inode);
- struct list_head *head = &ci->i_unsafe_dirops;
- struct ceph_mds_request *req;
- u64 last_tid;
- int ret = 0;
-
- dout("dir_fsync %p\n", inode);
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret)
- return ret;
- mutex_lock(&inode->i_mutex);
-
- spin_lock(&ci->i_unsafe_lock);
- if (list_empty(head))
- goto out;
-
- req = list_entry(head->prev,
- struct ceph_mds_request, r_unsafe_dir_item);
- last_tid = req->r_tid;
-
- do {
- ceph_mdsc_get_request(req);
- spin_unlock(&ci->i_unsafe_lock);
-
- dout("dir_fsync %p wait on tid %llu (until %llu)\n",
- inode, req->r_tid, last_tid);
- if (req->r_timeout) {
- unsigned long time_left = wait_for_completion_timeout(
- &req->r_safe_completion,
- req->r_timeout);
- if (time_left > 0)
- ret = 0;
- else
- ret = -EIO; /* timed out */
- } else {
- wait_for_completion(&req->r_safe_completion);
- }
- ceph_mdsc_put_request(req);
-
- spin_lock(&ci->i_unsafe_lock);
- if (ret || list_empty(head))
- break;
- req = list_entry(head->next,
- struct ceph_mds_request, r_unsafe_dir_item);
- } while (req->r_tid < last_tid);
-out:
- spin_unlock(&ci->i_unsafe_lock);
- mutex_unlock(&inode->i_mutex);
-
- return ret;
-}
-
-/*
* We maintain a private dentry LRU.
*
* FIXME: this needs to be changed to a per-mds lru to be useful.
@@ -1353,7 +1302,7 @@
.open = ceph_open,
.release = ceph_release,
.unlocked_ioctl = ceph_ioctl,
- .fsync = ceph_dir_fsync,
+ .fsync = ceph_fsync,
};
const struct file_operations ceph_snapdir_fops = {
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 3b6b522..8b79d87 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -89,13 +89,14 @@
case S_IFDIR:
dout("init_file %p %p 0%o (regular)\n", inode, file,
inode->i_mode);
- cf = kmem_cache_alloc(ceph_file_cachep, GFP_NOFS | __GFP_ZERO);
+ cf = kmem_cache_alloc(ceph_file_cachep, GFP_KERNEL | __GFP_ZERO);
if (cf == NULL) {
ceph_put_fmode(ceph_inode(inode), fmode); /* clean up */
return -ENOMEM;
}
cf->fmode = fmode;
cf->next_offset = 2;
+ cf->readdir_cache_idx = -1;
file->private_data = cf;
BUG_ON(inode->i_fop->release != ceph_release);
break;
@@ -324,7 +325,6 @@
ceph_mdsc_put_request(cf->last_readdir);
kfree(cf->last_name);
kfree(cf->dir_info);
- dput(cf->dentry);
kmem_cache_free(ceph_file_cachep, cf);
/* wake up anyone waiting for caps on this inode */
@@ -483,7 +483,7 @@
}
} else {
num_pages = calc_pages_for(off, len);
- pages = ceph_alloc_page_vector(num_pages, GFP_NOFS);
+ pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
if (IS_ERR(pages))
return PTR_ERR(pages);
ret = striped_read(inode, off, len, pages,
@@ -557,13 +557,13 @@
* objects, rollback on failure, etc.)
*/
static ssize_t
-ceph_sync_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
+ceph_sync_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
+ struct ceph_snap_context *snapc)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_snap_context *snapc;
struct ceph_vino vino;
struct ceph_osd_request *req;
struct page **pages;
@@ -600,7 +600,6 @@
size_t start;
ssize_t n;
- snapc = ci->i_snap_realm->cached_context;
vino = ceph_vino(inode);
req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout,
vino, pos, &len, 0,
@@ -614,7 +613,7 @@
break;
}
- osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC);
+ osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC, 0);
n = iov_iter_get_pages_alloc(from, &pages, len, &start);
if (unlikely(n < 0)) {
@@ -674,13 +673,13 @@
* objects, rollback on failure, etc.)
*/
static ssize_t
-ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
+ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
+ struct ceph_snap_context *snapc)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_snap_context *snapc;
struct ceph_vino vino;
struct ceph_osd_request *req;
struct page **pages;
@@ -717,7 +716,6 @@
size_t left;
int n;
- snapc = ci->i_snap_realm->cached_context;
vino = ceph_vino(inode);
req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout,
vino, pos, &len, 0, 1,
@@ -736,7 +734,7 @@
*/
num_pages = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- pages = ceph_alloc_page_vector(num_pages, GFP_NOFS);
+ pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
if (IS_ERR(pages)) {
ret = PTR_ERR(pages);
goto out;
@@ -860,7 +858,7 @@
struct page *page = NULL;
loff_t i_size;
if (retry_op == READ_INLINE) {
- page = __page_cache_alloc(GFP_NOFS);
+ page = __page_cache_alloc(GFP_KERNEL);
if (!page)
return -ENOMEM;
}
@@ -941,6 +939,7 @@
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_osd_client *osdc =
&ceph_sb_to_client(inode->i_sb)->client->osdc;
+ struct ceph_cap_flush *prealloc_cf;
ssize_t count, written = 0;
int err, want, got;
loff_t pos;
@@ -948,6 +947,10 @@
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EROFS;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return -ENOMEM;
+
mutex_lock(&inode->i_mutex);
/* We can write back this queue in page reclaim */
@@ -959,7 +962,7 @@
pos = iocb->ki_pos;
count = iov_iter_count(from);
- err = file_remove_suid(file);
+ err = file_remove_privs(file);
if (err)
goto out;
@@ -996,14 +999,30 @@
if ((got & (CEPH_CAP_FILE_BUFFER|CEPH_CAP_FILE_LAZYIO)) == 0 ||
(iocb->ki_flags & IOCB_DIRECT) || (fi->flags & CEPH_F_SYNC)) {
+ struct ceph_snap_context *snapc;
struct iov_iter data;
mutex_unlock(&inode->i_mutex);
+
+ spin_lock(&ci->i_ceph_lock);
+ if (__ceph_have_pending_cap_snap(ci)) {
+ struct ceph_cap_snap *capsnap =
+ list_last_entry(&ci->i_cap_snaps,
+ struct ceph_cap_snap,
+ ci_item);
+ snapc = ceph_get_snap_context(capsnap->context);
+ } else {
+ BUG_ON(!ci->i_head_snapc);
+ snapc = ceph_get_snap_context(ci->i_head_snapc);
+ }
+ spin_unlock(&ci->i_ceph_lock);
+
/* we might need to revert back to that point */
data = *from;
if (iocb->ki_flags & IOCB_DIRECT)
- written = ceph_sync_direct_write(iocb, &data, pos);
+ written = ceph_sync_direct_write(iocb, &data, pos,
+ snapc);
else
- written = ceph_sync_write(iocb, &data, pos);
+ written = ceph_sync_write(iocb, &data, pos, snapc);
if (written == -EOLDSNAPC) {
dout("aio_write %p %llx.%llx %llu~%u"
"got EOLDSNAPC, retrying\n",
@@ -1014,6 +1033,7 @@
}
if (written > 0)
iov_iter_advance(from, written);
+ ceph_put_snap_context(snapc);
} else {
loff_t old_size = inode->i_size;
/*
@@ -1035,7 +1055,8 @@
int dirty;
spin_lock(&ci->i_ceph_lock);
ci->i_inline_version = CEPH_INLINE_NONE;
- dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR,
+ &prealloc_cf);
spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
@@ -1059,6 +1080,7 @@
out:
mutex_unlock(&inode->i_mutex);
out_unlocked:
+ ceph_free_cap_flush(prealloc_cf);
current->backing_dev_info = NULL;
return written ? written : err;
}
@@ -1255,6 +1277,7 @@
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_osd_client *osdc =
&ceph_inode_to_client(inode)->client->osdc;
+ struct ceph_cap_flush *prealloc_cf;
int want, got = 0;
int dirty;
int ret = 0;
@@ -1267,6 +1290,10 @@
if (!S_ISREG(inode->i_mode))
return -EOPNOTSUPP;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return -ENOMEM;
+
mutex_lock(&inode->i_mutex);
if (ceph_snap(inode) != CEPH_NOSNAP) {
@@ -1313,7 +1340,8 @@
if (!ret) {
spin_lock(&ci->i_ceph_lock);
ci->i_inline_version = CEPH_INLINE_NONE;
- dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR,
+ &prealloc_cf);
spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
@@ -1322,6 +1350,7 @@
ceph_put_cap_refs(ci, got);
unlock:
mutex_unlock(&inode->i_mutex);
+ ceph_free_cap_flush(prealloc_cf);
return ret;
}
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 571acd8..96d2bd8 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -389,9 +389,10 @@
ci->i_inline_version = 0;
ci->i_time_warp_seq = 0;
ci->i_ceph_flags = 0;
- ci->i_ordered_count = 0;
- atomic_set(&ci->i_release_count, 1);
- atomic_set(&ci->i_complete_count, 0);
+ atomic64_set(&ci->i_ordered_count, 1);
+ atomic64_set(&ci->i_release_count, 1);
+ atomic64_set(&ci->i_complete_seq[0], 0);
+ atomic64_set(&ci->i_complete_seq[1], 0);
ci->i_symlink = NULL;
memset(&ci->i_dir_layout, 0, sizeof(ci->i_dir_layout));
@@ -415,9 +416,8 @@
ci->i_flushing_caps = 0;
INIT_LIST_HEAD(&ci->i_dirty_item);
INIT_LIST_HEAD(&ci->i_flushing_item);
- ci->i_cap_flush_seq = 0;
- ci->i_cap_flush_last_tid = 0;
- memset(&ci->i_cap_flush_tid, 0, sizeof(ci->i_cap_flush_tid));
+ ci->i_prealloc_cap_flush = NULL;
+ ci->i_cap_flush_tree = RB_ROOT;
init_waitqueue_head(&ci->i_cap_wq);
ci->i_hold_caps_min = 0;
ci->i_hold_caps_max = 0;
@@ -752,7 +752,10 @@
if (new_version ||
(new_issued & (CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR))) {
+ if (ci->i_layout.fl_pg_pool != info->layout.fl_pg_pool)
+ ci->i_ceph_flags &= ~CEPH_I_POOL_PERM;
ci->i_layout = info->layout;
+
queue_trunc = ceph_fill_file_size(inode, issued,
le32_to_cpu(info->truncate_seq),
le64_to_cpu(info->truncate_size),
@@ -858,9 +861,10 @@
(issued & CEPH_CAP_FILE_EXCL) == 0 &&
!__ceph_dir_is_complete(ci)) {
dout(" marking %p complete (empty)\n", inode);
+ i_size_write(inode, 0);
__ceph_dir_set_complete(ci,
- atomic_read(&ci->i_release_count),
- ci->i_ordered_count);
+ atomic64_read(&ci->i_release_count),
+ atomic64_read(&ci->i_ordered_count));
}
wake = true;
@@ -1212,6 +1216,10 @@
dout("fill_trace doing d_move %p -> %p\n",
req->r_old_dentry, dn);
+ /* d_move screws up sibling dentries' offsets */
+ ceph_dir_clear_ordered(dir);
+ ceph_dir_clear_ordered(olddir);
+
d_move(req->r_old_dentry, dn);
dout(" src %p '%pd' dst %p '%pd'\n",
req->r_old_dentry,
@@ -1222,10 +1230,6 @@
rehashing bug in vfs_rename_dir */
ceph_invalidate_dentry_lease(dn);
- /* d_move screws up sibling dentries' offsets */
- ceph_dir_clear_ordered(dir);
- ceph_dir_clear_ordered(olddir);
-
dout("dn %p gets new offset %lld\n", req->r_old_dentry,
ceph_dentry(req->r_old_dentry)->offset);
@@ -1333,6 +1337,49 @@
return err;
}
+void ceph_readdir_cache_release(struct ceph_readdir_cache_control *ctl)
+{
+ if (ctl->page) {
+ kunmap(ctl->page);
+ page_cache_release(ctl->page);
+ ctl->page = NULL;
+ }
+}
+
+static int fill_readdir_cache(struct inode *dir, struct dentry *dn,
+ struct ceph_readdir_cache_control *ctl,
+ struct ceph_mds_request *req)
+{
+ struct ceph_inode_info *ci = ceph_inode(dir);
+ unsigned nsize = PAGE_CACHE_SIZE / sizeof(struct dentry*);
+ unsigned idx = ctl->index % nsize;
+ pgoff_t pgoff = ctl->index / nsize;
+
+ if (!ctl->page || pgoff != page_index(ctl->page)) {
+ ceph_readdir_cache_release(ctl);
+ ctl->page = grab_cache_page(&dir->i_data, pgoff);
+ if (!ctl->page) {
+ ctl->index = -1;
+ return -ENOMEM;
+ }
+ /* reading/filling the cache are serialized by
+ * i_mutex, no need to use page lock */
+ unlock_page(ctl->page);
+ ctl->dentries = kmap(ctl->page);
+ }
+
+ if (req->r_dir_release_cnt == atomic64_read(&ci->i_release_count) &&
+ req->r_dir_ordered_cnt == atomic64_read(&ci->i_ordered_count)) {
+ dout("readdir cache dn %p idx %d\n", dn, ctl->index);
+ ctl->dentries[idx] = dn;
+ ctl->index++;
+ } else {
+ dout("disable readdir cache\n");
+ ctl->index = -1;
+ }
+ return 0;
+}
+
int ceph_readdir_prepopulate(struct ceph_mds_request *req,
struct ceph_mds_session *session)
{
@@ -1345,8 +1392,11 @@
struct inode *snapdir = NULL;
struct ceph_mds_request_head *rhead = req->r_request->front.iov_base;
struct ceph_dentry_info *di;
- u64 r_readdir_offset = req->r_readdir_offset;
u32 frag = le32_to_cpu(rhead->args.readdir.frag);
+ struct ceph_readdir_cache_control cache_ctl = {};
+
+ if (req->r_aborted)
+ return readdir_prepopulate_inodes_only(req, session);
if (rinfo->dir_dir &&
le32_to_cpu(rinfo->dir_dir->frag) != frag) {
@@ -1354,14 +1404,11 @@
frag, le32_to_cpu(rinfo->dir_dir->frag));
frag = le32_to_cpu(rinfo->dir_dir->frag);
if (ceph_frag_is_leftmost(frag))
- r_readdir_offset = 2;
+ req->r_readdir_offset = 2;
else
- r_readdir_offset = 0;
+ req->r_readdir_offset = 0;
}
- if (req->r_aborted)
- return readdir_prepopulate_inodes_only(req, session);
-
if (le32_to_cpu(rinfo->head->op) == CEPH_MDS_OP_LSSNAP) {
snapdir = ceph_get_snapdir(d_inode(parent));
parent = d_find_alias(snapdir);
@@ -1374,6 +1421,17 @@
ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir);
}
+ if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2) {
+ /* note dir version at start of readdir so we can tell
+ * if any dentries get dropped */
+ struct ceph_inode_info *ci = ceph_inode(d_inode(parent));
+ req->r_dir_release_cnt = atomic64_read(&ci->i_release_count);
+ req->r_dir_ordered_cnt = atomic64_read(&ci->i_ordered_count);
+ req->r_readdir_cache_idx = 0;
+ }
+
+ cache_ctl.index = req->r_readdir_cache_idx;
+
/* FIXME: release caps/leases if error occurs */
for (i = 0; i < rinfo->dir_nr; i++) {
struct ceph_vino vino;
@@ -1413,13 +1471,6 @@
d_delete(dn);
dput(dn);
goto retry_lookup;
- } else {
- /* reorder parent's d_subdirs */
- spin_lock(&parent->d_lock);
- spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED);
- list_move(&dn->d_child, &parent->d_subdirs);
- spin_unlock(&dn->d_lock);
- spin_unlock(&parent->d_lock);
}
/* inode */
@@ -1436,13 +1487,15 @@
}
}
- if (fill_inode(in, NULL, &rinfo->dir_in[i], NULL, session,
- req->r_request_started, -1,
- &req->r_caps_reservation) < 0) {
+ ret = fill_inode(in, NULL, &rinfo->dir_in[i], NULL, session,
+ req->r_request_started, -1,
+ &req->r_caps_reservation);
+ if (ret < 0) {
pr_err("fill_inode badness on %p\n", in);
if (d_really_is_negative(dn))
iput(in);
d_drop(dn);
+ err = ret;
goto next_item;
}
@@ -1458,19 +1511,28 @@
}
di = dn->d_fsdata;
- di->offset = ceph_make_fpos(frag, i + r_readdir_offset);
+ di->offset = ceph_make_fpos(frag, i + req->r_readdir_offset);
update_dentry_lease(dn, rinfo->dir_dlease[i],
req->r_session,
req->r_request_started);
+
+ if (err == 0 && cache_ctl.index >= 0) {
+ ret = fill_readdir_cache(d_inode(parent), dn,
+ &cache_ctl, req);
+ if (ret < 0)
+ err = ret;
+ }
next_item:
if (dn)
dput(dn);
}
- if (err == 0)
- req->r_did_prepopulate = true;
-
out:
+ if (err == 0) {
+ req->r_did_prepopulate = true;
+ req->r_readdir_cache_idx = cache_ctl.index;
+ }
+ ceph_readdir_cache_release(&cache_ctl);
if (snapdir) {
iput(snapdir);
dput(parent);
@@ -1712,11 +1774,13 @@
const unsigned int ia_valid = attr->ia_valid;
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
+ struct ceph_cap_flush *prealloc_cf;
int issued;
int release = 0, dirtied = 0;
int mask = 0;
int err = 0;
int inode_dirty_flags = 0;
+ bool lock_snap_rwsem = false;
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EROFS;
@@ -1725,13 +1789,31 @@
if (err != 0)
return err;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return -ENOMEM;
+
req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETATTR,
USE_AUTH_MDS);
- if (IS_ERR(req))
+ if (IS_ERR(req)) {
+ ceph_free_cap_flush(prealloc_cf);
return PTR_ERR(req);
+ }
spin_lock(&ci->i_ceph_lock);
issued = __ceph_caps_issued(ci, NULL);
+
+ if (!ci->i_head_snapc &&
+ (issued & (CEPH_CAP_ANY_EXCL | CEPH_CAP_FILE_WR))) {
+ lock_snap_rwsem = true;
+ if (!down_read_trylock(&mdsc->snap_rwsem)) {
+ spin_unlock(&ci->i_ceph_lock);
+ down_read(&mdsc->snap_rwsem);
+ spin_lock(&ci->i_ceph_lock);
+ issued = __ceph_caps_issued(ci, NULL);
+ }
+ }
+
dout("setattr %p issued %s\n", inode, ceph_cap_string(issued));
if (ia_valid & ATTR_UID) {
@@ -1874,12 +1956,15 @@
dout("setattr %p ATTR_FILE ... hrm!\n", inode);
if (dirtied) {
- inode_dirty_flags = __ceph_mark_dirty_caps(ci, dirtied);
+ inode_dirty_flags = __ceph_mark_dirty_caps(ci, dirtied,
+ &prealloc_cf);
inode->i_ctime = CURRENT_TIME;
}
release &= issued;
spin_unlock(&ci->i_ceph_lock);
+ if (lock_snap_rwsem)
+ up_read(&mdsc->snap_rwsem);
if (inode_dirty_flags)
__mark_inode_dirty(inode, inode_dirty_flags);
@@ -1904,9 +1989,11 @@
ceph_mdsc_put_request(req);
if (mask & CEPH_SETATTR_SIZE)
__ceph_do_pending_vmtruncate(inode);
+ ceph_free_cap_flush(prealloc_cf);
return err;
out_put:
ceph_mdsc_put_request(req);
+ ceph_free_cap_flush(prealloc_cf);
return err;
}
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 84f37f3..6aa07af 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -8,6 +8,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/utsname.h>
+#include <linux/ratelimit.h>
#include "super.h"
#include "mds_client.h"
@@ -458,7 +459,6 @@
s->s_cap_reconnect = 0;
s->s_cap_iterator = NULL;
INIT_LIST_HEAD(&s->s_cap_releases);
- INIT_LIST_HEAD(&s->s_cap_releases_done);
INIT_LIST_HEAD(&s->s_cap_flushing);
INIT_LIST_HEAD(&s->s_cap_snaps_flushing);
@@ -629,6 +629,9 @@
req->r_uid = current_fsuid();
req->r_gid = current_fsgid();
+ if (mdsc->oldest_tid == 0 && req->r_op != CEPH_MDS_OP_SETFILELOCK)
+ mdsc->oldest_tid = req->r_tid;
+
if (dir) {
struct ceph_inode_info *ci = ceph_inode(dir);
@@ -644,6 +647,21 @@
struct ceph_mds_request *req)
{
dout("__unregister_request %p tid %lld\n", req, req->r_tid);
+
+ if (req->r_tid == mdsc->oldest_tid) {
+ struct rb_node *p = rb_next(&req->r_node);
+ mdsc->oldest_tid = 0;
+ while (p) {
+ struct ceph_mds_request *next_req =
+ rb_entry(p, struct ceph_mds_request, r_node);
+ if (next_req->r_op != CEPH_MDS_OP_SETFILELOCK) {
+ mdsc->oldest_tid = next_req->r_tid;
+ break;
+ }
+ p = rb_next(p);
+ }
+ }
+
rb_erase(&req->r_node, &mdsc->request_tree);
RB_CLEAR_NODE(&req->r_node);
@@ -998,27 +1016,25 @@
* session caps
*/
-/*
- * Free preallocated cap messages assigned to this session
- */
-static void cleanup_cap_releases(struct ceph_mds_session *session)
+/* caller holds s_cap_lock, we drop it */
+static void cleanup_cap_releases(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session)
+ __releases(session->s_cap_lock)
{
- struct ceph_msg *msg;
-
- spin_lock(&session->s_cap_lock);
- while (!list_empty(&session->s_cap_releases)) {
- msg = list_first_entry(&session->s_cap_releases,
- struct ceph_msg, list_head);
- list_del_init(&msg->list_head);
- ceph_msg_put(msg);
- }
- while (!list_empty(&session->s_cap_releases_done)) {
- msg = list_first_entry(&session->s_cap_releases_done,
- struct ceph_msg, list_head);
- list_del_init(&msg->list_head);
- ceph_msg_put(msg);
- }
+ LIST_HEAD(tmp_list);
+ list_splice_init(&session->s_cap_releases, &tmp_list);
+ session->s_num_cap_releases = 0;
spin_unlock(&session->s_cap_lock);
+
+ dout("cleanup_cap_releases mds%d\n", session->s_mds);
+ while (!list_empty(&tmp_list)) {
+ struct ceph_cap *cap;
+ /* zero out the in-progress message */
+ cap = list_first_entry(&tmp_list,
+ struct ceph_cap, session_caps);
+ list_del(&cap->session_caps);
+ ceph_put_cap(mdsc, cap);
+ }
}
static void cleanup_session_requests(struct ceph_mds_client *mdsc,
@@ -1033,7 +1049,8 @@
req = list_first_entry(&session->s_unsafe,
struct ceph_mds_request, r_unsafe_item);
list_del_init(&req->r_unsafe_item);
- pr_info(" dropping unsafe request %llu\n", req->r_tid);
+ pr_warn_ratelimited(" dropping unsafe request %llu\n",
+ req->r_tid);
__unregister_request(mdsc, req);
}
/* zero r_attempts, so kick_requests() will re-send requests */
@@ -1095,10 +1112,16 @@
dout("iterate_session_caps finishing cap %p removal\n",
cap);
BUG_ON(cap->session != session);
+ cap->session = NULL;
list_del_init(&cap->session_caps);
session->s_nr_caps--;
- cap->session = NULL;
- old_cap = cap; /* put_cap it w/o locks held */
+ if (cap->queue_release) {
+ list_add_tail(&cap->session_caps,
+ &session->s_cap_releases);
+ session->s_num_cap_releases++;
+ } else {
+ old_cap = cap; /* put_cap it w/o locks held */
+ }
}
if (ret < 0)
goto out;
@@ -1119,6 +1142,7 @@
void *arg)
{
struct ceph_inode_info *ci = ceph_inode(inode);
+ LIST_HEAD(to_remove);
int drop = 0;
dout("removing cap %p, ci is %p, inode is %p\n",
@@ -1126,12 +1150,27 @@
spin_lock(&ci->i_ceph_lock);
__ceph_remove_cap(cap, false);
if (!ci->i_auth_cap) {
+ struct ceph_cap_flush *cf;
struct ceph_mds_client *mdsc =
ceph_sb_to_client(inode->i_sb)->mdsc;
+ while (true) {
+ struct rb_node *n = rb_first(&ci->i_cap_flush_tree);
+ if (!n)
+ break;
+ cf = rb_entry(n, struct ceph_cap_flush, i_node);
+ rb_erase(&cf->i_node, &ci->i_cap_flush_tree);
+ list_add(&cf->list, &to_remove);
+ }
+
spin_lock(&mdsc->cap_dirty_lock);
+
+ list_for_each_entry(cf, &to_remove, list)
+ rb_erase(&cf->g_node, &mdsc->cap_flush_tree);
+
if (!list_empty(&ci->i_dirty_item)) {
- pr_info(" dropping dirty %s state for %p %lld\n",
+ pr_warn_ratelimited(
+ " dropping dirty %s state for %p %lld\n",
ceph_cap_string(ci->i_dirty_caps),
inode, ceph_ino(inode));
ci->i_dirty_caps = 0;
@@ -1139,7 +1178,8 @@
drop = 1;
}
if (!list_empty(&ci->i_flushing_item)) {
- pr_info(" dropping dirty+flushing %s state for %p %lld\n",
+ pr_warn_ratelimited(
+ " dropping dirty+flushing %s state for %p %lld\n",
ceph_cap_string(ci->i_flushing_caps),
inode, ceph_ino(inode));
ci->i_flushing_caps = 0;
@@ -1148,8 +1188,20 @@
drop = 1;
}
spin_unlock(&mdsc->cap_dirty_lock);
+
+ if (!ci->i_dirty_caps && ci->i_prealloc_cap_flush) {
+ list_add(&ci->i_prealloc_cap_flush->list, &to_remove);
+ ci->i_prealloc_cap_flush = NULL;
+ }
}
spin_unlock(&ci->i_ceph_lock);
+ while (!list_empty(&to_remove)) {
+ struct ceph_cap_flush *cf;
+ cf = list_first_entry(&to_remove,
+ struct ceph_cap_flush, list);
+ list_del(&cf->list);
+ ceph_free_cap_flush(cf);
+ }
while (drop--)
iput(inode);
return 0;
@@ -1191,11 +1243,12 @@
spin_lock(&session->s_cap_lock);
}
}
- spin_unlock(&session->s_cap_lock);
+
+ // drop cap expires and unlock s_cap_lock
+ cleanup_cap_releases(session->s_mdsc, session);
BUG_ON(session->s_nr_caps > 0);
BUG_ON(!list_empty(&session->s_cap_flushing));
- cleanup_cap_releases(session);
}
/*
@@ -1371,7 +1424,8 @@
inode, cap, ceph_cap_string(mine), ceph_cap_string(oissued),
ceph_cap_string(used), ceph_cap_string(wanted));
if (cap == ci->i_auth_cap) {
- if (ci->i_dirty_caps | ci->i_flushing_caps)
+ if (ci->i_dirty_caps || ci->i_flushing_caps ||
+ !list_empty(&ci->i_cap_snaps))
goto out;
if ((used | wanted) & CEPH_CAP_ANY_WR)
goto out;
@@ -1417,121 +1471,80 @@
session->s_trim_caps = 0;
}
- ceph_add_cap_releases(mdsc, session);
ceph_send_cap_releases(mdsc, session);
return 0;
}
-/*
- * Allocate cap_release messages. If there is a partially full message
- * in the queue, try to allocate enough to cover it's remainder, so that
- * we can send it immediately.
- *
- * Called under s_mutex.
- */
-int ceph_add_cap_releases(struct ceph_mds_client *mdsc,
- struct ceph_mds_session *session)
+static int check_capsnap_flush(struct ceph_inode_info *ci,
+ u64 want_snap_seq)
{
- struct ceph_msg *msg, *partial = NULL;
- struct ceph_mds_cap_release *head;
- int err = -ENOMEM;
- int extra = mdsc->fsc->mount_options->cap_release_safety;
- int num;
-
- dout("add_cap_releases %p mds%d extra %d\n", session, session->s_mds,
- extra);
-
- spin_lock(&session->s_cap_lock);
-
- if (!list_empty(&session->s_cap_releases)) {
- msg = list_first_entry(&session->s_cap_releases,
- struct ceph_msg,
- list_head);
- head = msg->front.iov_base;
- num = le32_to_cpu(head->num);
- if (num) {
- dout(" partial %p with (%d/%d)\n", msg, num,
- (int)CEPH_CAPS_PER_RELEASE);
- extra += CEPH_CAPS_PER_RELEASE - num;
- partial = msg;
- }
+ int ret = 1;
+ spin_lock(&ci->i_ceph_lock);
+ if (want_snap_seq > 0 && !list_empty(&ci->i_cap_snaps)) {
+ struct ceph_cap_snap *capsnap =
+ list_first_entry(&ci->i_cap_snaps,
+ struct ceph_cap_snap, ci_item);
+ ret = capsnap->follows >= want_snap_seq;
}
- while (session->s_num_cap_releases < session->s_nr_caps + extra) {
- spin_unlock(&session->s_cap_lock);
- msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPRELEASE, PAGE_CACHE_SIZE,
- GFP_NOFS, false);
- if (!msg)
- goto out_unlocked;
- dout("add_cap_releases %p msg %p now %d\n", session, msg,
- (int)msg->front.iov_len);
- head = msg->front.iov_base;
- head->num = cpu_to_le32(0);
- msg->front.iov_len = sizeof(*head);
- spin_lock(&session->s_cap_lock);
- list_add(&msg->list_head, &session->s_cap_releases);
- session->s_num_cap_releases += CEPH_CAPS_PER_RELEASE;
- }
-
- if (partial) {
- head = partial->front.iov_base;
- num = le32_to_cpu(head->num);
- dout(" queueing partial %p with %d/%d\n", partial, num,
- (int)CEPH_CAPS_PER_RELEASE);
- list_move_tail(&partial->list_head,
- &session->s_cap_releases_done);
- session->s_num_cap_releases -= CEPH_CAPS_PER_RELEASE - num;
- }
- err = 0;
- spin_unlock(&session->s_cap_lock);
-out_unlocked:
- return err;
+ spin_unlock(&ci->i_ceph_lock);
+ return ret;
}
-static int check_cap_flush(struct inode *inode, u64 want_flush_seq)
+static int check_caps_flush(struct ceph_mds_client *mdsc,
+ u64 want_flush_tid)
{
- struct ceph_inode_info *ci = ceph_inode(inode);
- int ret;
- spin_lock(&ci->i_ceph_lock);
- if (ci->i_flushing_caps)
- ret = ci->i_cap_flush_seq >= want_flush_seq;
- else
- ret = 1;
- spin_unlock(&ci->i_ceph_lock);
+ struct rb_node *n;
+ struct ceph_cap_flush *cf;
+ int ret = 1;
+
+ spin_lock(&mdsc->cap_dirty_lock);
+ n = rb_first(&mdsc->cap_flush_tree);
+ cf = n ? rb_entry(n, struct ceph_cap_flush, g_node) : NULL;
+ if (cf && cf->tid <= want_flush_tid) {
+ dout("check_caps_flush still flushing tid %llu <= %llu\n",
+ cf->tid, want_flush_tid);
+ ret = 0;
+ }
+ spin_unlock(&mdsc->cap_dirty_lock);
return ret;
}
/*
* flush all dirty inode data to disk.
*
- * returns true if we've flushed through want_flush_seq
+ * returns true if we've flushed through want_flush_tid
*/
-static void wait_caps_flush(struct ceph_mds_client *mdsc, u64 want_flush_seq)
+static void wait_caps_flush(struct ceph_mds_client *mdsc,
+ u64 want_flush_tid, u64 want_snap_seq)
{
int mds;
- dout("check_cap_flush want %lld\n", want_flush_seq);
+ dout("check_caps_flush want %llu snap want %llu\n",
+ want_flush_tid, want_snap_seq);
mutex_lock(&mdsc->mutex);
- for (mds = 0; mds < mdsc->max_sessions; mds++) {
+ for (mds = 0; mds < mdsc->max_sessions; ) {
struct ceph_mds_session *session = mdsc->sessions[mds];
struct inode *inode = NULL;
- if (!session)
+ if (!session) {
+ mds++;
continue;
+ }
get_session(session);
mutex_unlock(&mdsc->mutex);
mutex_lock(&session->s_mutex);
- if (!list_empty(&session->s_cap_flushing)) {
- struct ceph_inode_info *ci =
- list_entry(session->s_cap_flushing.next,
- struct ceph_inode_info,
- i_flushing_item);
-
- if (!check_cap_flush(&ci->vfs_inode, want_flush_seq)) {
- dout("check_cap_flush still flushing %p "
- "seq %lld <= %lld to mds%d\n",
- &ci->vfs_inode, ci->i_cap_flush_seq,
- want_flush_seq, session->s_mds);
+ if (!list_empty(&session->s_cap_snaps_flushing)) {
+ struct ceph_cap_snap *capsnap =
+ list_first_entry(&session->s_cap_snaps_flushing,
+ struct ceph_cap_snap,
+ flushing_item);
+ struct ceph_inode_info *ci = capsnap->ci;
+ if (!check_capsnap_flush(ci, want_snap_seq)) {
+ dout("check_cap_flush still flushing snap %p "
+ "follows %lld <= %lld to mds%d\n",
+ &ci->vfs_inode, capsnap->follows,
+ want_snap_seq, mds);
inode = igrab(&ci->vfs_inode);
}
}
@@ -1540,15 +1553,21 @@
if (inode) {
wait_event(mdsc->cap_flushing_wq,
- check_cap_flush(inode, want_flush_seq));
+ check_capsnap_flush(ceph_inode(inode),
+ want_snap_seq));
iput(inode);
+ } else {
+ mds++;
}
mutex_lock(&mdsc->mutex);
}
-
mutex_unlock(&mdsc->mutex);
- dout("check_cap_flush ok, flushed thru %lld\n", want_flush_seq);
+
+ wait_event(mdsc->cap_flushing_wq,
+ check_caps_flush(mdsc, want_flush_tid));
+
+ dout("check_caps_flush ok, flushed thru %llu\n", want_flush_tid);
}
/*
@@ -1557,62 +1576,76 @@
void ceph_send_cap_releases(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session)
{
- struct ceph_msg *msg;
+ struct ceph_msg *msg = NULL;
+ struct ceph_mds_cap_release *head;
+ struct ceph_mds_cap_item *item;
+ struct ceph_cap *cap;
+ LIST_HEAD(tmp_list);
+ int num_cap_releases;
- dout("send_cap_releases mds%d\n", session->s_mds);
spin_lock(&session->s_cap_lock);
- while (!list_empty(&session->s_cap_releases_done)) {
- msg = list_first_entry(&session->s_cap_releases_done,
- struct ceph_msg, list_head);
- list_del_init(&msg->list_head);
- spin_unlock(&session->s_cap_lock);
+again:
+ list_splice_init(&session->s_cap_releases, &tmp_list);
+ num_cap_releases = session->s_num_cap_releases;
+ session->s_num_cap_releases = 0;
+ spin_unlock(&session->s_cap_lock);
+
+ while (!list_empty(&tmp_list)) {
+ if (!msg) {
+ msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPRELEASE,
+ PAGE_CACHE_SIZE, GFP_NOFS, false);
+ if (!msg)
+ goto out_err;
+ head = msg->front.iov_base;
+ head->num = cpu_to_le32(0);
+ msg->front.iov_len = sizeof(*head);
+ }
+ cap = list_first_entry(&tmp_list, struct ceph_cap,
+ session_caps);
+ list_del(&cap->session_caps);
+ num_cap_releases--;
+
+ head = msg->front.iov_base;
+ le32_add_cpu(&head->num, 1);
+ item = msg->front.iov_base + msg->front.iov_len;
+ item->ino = cpu_to_le64(cap->cap_ino);
+ item->cap_id = cpu_to_le64(cap->cap_id);
+ item->migrate_seq = cpu_to_le32(cap->mseq);
+ item->seq = cpu_to_le32(cap->issue_seq);
+ msg->front.iov_len += sizeof(*item);
+
+ ceph_put_cap(mdsc, cap);
+
+ if (le32_to_cpu(head->num) == CEPH_CAPS_PER_RELEASE) {
+ msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
+ dout("send_cap_releases mds%d %p\n", session->s_mds, msg);
+ ceph_con_send(&session->s_con, msg);
+ msg = NULL;
+ }
+ }
+
+ BUG_ON(num_cap_releases != 0);
+
+ spin_lock(&session->s_cap_lock);
+ if (!list_empty(&session->s_cap_releases))
+ goto again;
+ spin_unlock(&session->s_cap_lock);
+
+ if (msg) {
msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
dout("send_cap_releases mds%d %p\n", session->s_mds, msg);
ceph_con_send(&session->s_con, msg);
- spin_lock(&session->s_cap_lock);
}
+ return;
+out_err:
+ pr_err("send_cap_releases mds%d, failed to allocate message\n",
+ session->s_mds);
+ spin_lock(&session->s_cap_lock);
+ list_splice(&tmp_list, &session->s_cap_releases);
+ session->s_num_cap_releases += num_cap_releases;
spin_unlock(&session->s_cap_lock);
}
-static void discard_cap_releases(struct ceph_mds_client *mdsc,
- struct ceph_mds_session *session)
-{
- struct ceph_msg *msg;
- struct ceph_mds_cap_release *head;
- unsigned num;
-
- dout("discard_cap_releases mds%d\n", session->s_mds);
-
- if (!list_empty(&session->s_cap_releases)) {
- /* zero out the in-progress message */
- msg = list_first_entry(&session->s_cap_releases,
- struct ceph_msg, list_head);
- head = msg->front.iov_base;
- num = le32_to_cpu(head->num);
- dout("discard_cap_releases mds%d %p %u\n",
- session->s_mds, msg, num);
- head->num = cpu_to_le32(0);
- msg->front.iov_len = sizeof(*head);
- session->s_num_cap_releases += num;
- }
-
- /* requeue completed messages */
- while (!list_empty(&session->s_cap_releases_done)) {
- msg = list_first_entry(&session->s_cap_releases_done,
- struct ceph_msg, list_head);
- list_del_init(&msg->list_head);
-
- head = msg->front.iov_base;
- num = le32_to_cpu(head->num);
- dout("discard_cap_releases mds%d %p %u\n", session->s_mds, msg,
- num);
- session->s_num_cap_releases += num;
- head->num = cpu_to_le32(0);
- msg->front.iov_len = sizeof(*head);
- list_add(&msg->list_head, &session->s_cap_releases);
- }
-}
-
/*
* requests
*/
@@ -1635,7 +1668,8 @@
order = get_order(size * num_entries);
while (order >= 0) {
- rinfo->dir_in = (void*)__get_free_pages(GFP_NOFS | __GFP_NOWARN,
+ rinfo->dir_in = (void*)__get_free_pages(GFP_KERNEL |
+ __GFP_NOWARN,
order);
if (rinfo->dir_in)
break;
@@ -1697,13 +1731,9 @@
struct ceph_mds_request, r_node);
}
-static u64 __get_oldest_tid(struct ceph_mds_client *mdsc)
+static inline u64 __get_oldest_tid(struct ceph_mds_client *mdsc)
{
- struct ceph_mds_request *req = __get_oldest_req(mdsc);
-
- if (req)
- return req->r_tid;
- return 0;
+ return mdsc->oldest_tid;
}
/*
@@ -2267,15 +2297,18 @@
/* wait */
mutex_unlock(&mdsc->mutex);
dout("do_request waiting\n");
- if (req->r_timeout) {
- err = (long)wait_for_completion_killable_timeout(
- &req->r_completion, req->r_timeout);
- if (err == 0)
- err = -EIO;
- } else if (req->r_wait_for_completion) {
+ if (!req->r_timeout && req->r_wait_for_completion) {
err = req->r_wait_for_completion(mdsc, req);
} else {
- err = wait_for_completion_killable(&req->r_completion);
+ long timeleft = wait_for_completion_killable_timeout(
+ &req->r_completion,
+ ceph_timeout_jiffies(req->r_timeout));
+ if (timeleft > 0)
+ err = 0;
+ else if (!timeleft)
+ err = -EIO; /* timed out */
+ else
+ err = timeleft; /* killed */
}
dout("do_request waited, got %d\n", err);
mutex_lock(&mdsc->mutex);
@@ -2496,7 +2529,6 @@
}
mutex_unlock(&mdsc->mutex);
- ceph_add_cap_releases(mdsc, req->r_session);
mutex_unlock(&session->s_mutex);
/* kick calling process */
@@ -2888,8 +2920,7 @@
*/
session->s_cap_reconnect = 1;
/* drop old cap expires; we're about to reestablish that state */
- discard_cap_releases(mdsc, session);
- spin_unlock(&session->s_cap_lock);
+ cleanup_cap_releases(mdsc, session);
/* trim unused caps to reduce MDS's cache rejoin time */
if (mdsc->fsc->sb->s_root)
@@ -2956,6 +2987,9 @@
reply->hdr.data_len = cpu_to_le32(pagelist->length);
ceph_msg_data_add_pagelist(reply, pagelist);
+
+ ceph_early_kick_flushing_caps(mdsc, session);
+
ceph_con_send(&session->s_con, reply);
mutex_unlock(&session->s_mutex);
@@ -3352,7 +3386,6 @@
send_renew_caps(mdsc, s);
else
ceph_con_keepalive(&s->s_con);
- ceph_add_cap_releases(mdsc, s);
if (s->s_state == CEPH_MDS_SESSION_OPEN ||
s->s_state == CEPH_MDS_SESSION_HUNG)
ceph_send_cap_releases(mdsc, s);
@@ -3390,11 +3423,13 @@
atomic_set(&mdsc->num_sessions, 0);
mdsc->max_sessions = 0;
mdsc->stopping = 0;
+ mdsc->last_snap_seq = 0;
init_rwsem(&mdsc->snap_rwsem);
mdsc->snap_realms = RB_ROOT;
INIT_LIST_HEAD(&mdsc->snap_empty);
spin_lock_init(&mdsc->snap_empty_lock);
mdsc->last_tid = 0;
+ mdsc->oldest_tid = 0;
mdsc->request_tree = RB_ROOT;
INIT_DELAYED_WORK(&mdsc->delayed_work, delayed_work);
mdsc->last_renew_caps = jiffies;
@@ -3402,7 +3437,8 @@
spin_lock_init(&mdsc->cap_delay_lock);
INIT_LIST_HEAD(&mdsc->snap_flush_list);
spin_lock_init(&mdsc->snap_flush_lock);
- mdsc->cap_flush_seq = 0;
+ mdsc->last_cap_flush_tid = 1;
+ mdsc->cap_flush_tree = RB_ROOT;
INIT_LIST_HEAD(&mdsc->cap_dirty);
INIT_LIST_HEAD(&mdsc->cap_dirty_migrating);
mdsc->num_cap_flushing = 0;
@@ -3414,6 +3450,9 @@
ceph_caps_init(mdsc);
ceph_adjust_min_caps(mdsc, fsc->min_caps);
+ init_rwsem(&mdsc->pool_perm_rwsem);
+ mdsc->pool_perm_tree = RB_ROOT;
+
return 0;
}
@@ -3423,8 +3462,8 @@
*/
static void wait_requests(struct ceph_mds_client *mdsc)
{
+ struct ceph_options *opts = mdsc->fsc->client->options;
struct ceph_mds_request *req;
- struct ceph_fs_client *fsc = mdsc->fsc;
mutex_lock(&mdsc->mutex);
if (__get_oldest_req(mdsc)) {
@@ -3432,7 +3471,7 @@
dout("wait_requests waiting for requests\n");
wait_for_completion_timeout(&mdsc->safe_umount_waiters,
- fsc->client->options->mount_timeout * HZ);
+ ceph_timeout_jiffies(opts->mount_timeout));
/* tear down remaining requests */
mutex_lock(&mdsc->mutex);
@@ -3485,7 +3524,8 @@
nextreq = rb_entry(n, struct ceph_mds_request, r_node);
else
nextreq = NULL;
- if ((req->r_op & CEPH_MDS_OP_WRITE)) {
+ if (req->r_op != CEPH_MDS_OP_SETFILELOCK &&
+ (req->r_op & CEPH_MDS_OP_WRITE)) {
/* write op */
ceph_mdsc_get_request(req);
if (nextreq)
@@ -3513,7 +3553,7 @@
void ceph_mdsc_sync(struct ceph_mds_client *mdsc)
{
- u64 want_tid, want_flush;
+ u64 want_tid, want_flush, want_snap;
if (mdsc->fsc->mount_state == CEPH_MOUNT_SHUTDOWN)
return;
@@ -3525,13 +3565,18 @@
ceph_flush_dirty_caps(mdsc);
spin_lock(&mdsc->cap_dirty_lock);
- want_flush = mdsc->cap_flush_seq;
+ want_flush = mdsc->last_cap_flush_tid;
spin_unlock(&mdsc->cap_dirty_lock);
- dout("sync want tid %lld flush_seq %lld\n", want_tid, want_flush);
+ down_read(&mdsc->snap_rwsem);
+ want_snap = mdsc->last_snap_seq;
+ up_read(&mdsc->snap_rwsem);
+
+ dout("sync want tid %lld flush_seq %lld snap_seq %lld\n",
+ want_tid, want_flush, want_snap);
wait_unsafe_requests(mdsc, want_tid);
- wait_caps_flush(mdsc, want_flush);
+ wait_caps_flush(mdsc, want_flush, want_snap);
}
/*
@@ -3549,10 +3594,9 @@
*/
void ceph_mdsc_close_sessions(struct ceph_mds_client *mdsc)
{
+ struct ceph_options *opts = mdsc->fsc->client->options;
struct ceph_mds_session *session;
int i;
- struct ceph_fs_client *fsc = mdsc->fsc;
- unsigned long timeout = fsc->client->options->mount_timeout * HZ;
dout("close_sessions\n");
@@ -3573,7 +3617,7 @@
dout("waiting for sessions to close\n");
wait_event_timeout(mdsc->session_close_wq, done_closing_sessions(mdsc),
- timeout);
+ ceph_timeout_jiffies(opts->mount_timeout));
/* tear down remaining sessions */
mutex_lock(&mdsc->mutex);
@@ -3607,6 +3651,7 @@
ceph_mdsmap_destroy(mdsc->mdsmap);
kfree(mdsc->sessions);
ceph_caps_finalize(mdsc);
+ ceph_pool_perm_destroy(mdsc);
}
void ceph_mdsc_destroy(struct ceph_fs_client *fsc)
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 1875b5d..762757e 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -139,7 +139,6 @@
int s_cap_reconnect;
int s_readonly;
struct list_head s_cap_releases; /* waiting cap_release messages */
- struct list_head s_cap_releases_done; /* ready to send */
struct ceph_cap *s_cap_iterator;
/* protected by mutex */
@@ -228,7 +227,7 @@
int r_err;
bool r_aborted;
- unsigned long r_timeout; /* optional. jiffies */
+ unsigned long r_timeout; /* optional. jiffies, 0 is "wait forever" */
unsigned long r_started; /* start time to measure timeout against */
unsigned long r_request_started; /* start time for mds request only,
used to measure lease durations */
@@ -254,12 +253,21 @@
bool r_got_unsafe, r_got_safe, r_got_result;
bool r_did_prepopulate;
+ long long r_dir_release_cnt;
+ long long r_dir_ordered_cnt;
+ int r_readdir_cache_idx;
u32 r_readdir_offset;
struct ceph_cap_reservation r_caps_reservation;
int r_num_caps;
};
+struct ceph_pool_perm {
+ struct rb_node node;
+ u32 pool;
+ int perm;
+};
+
/*
* mds client state
*/
@@ -284,12 +292,15 @@
* references (implying they contain no inodes with caps) that
* should be destroyed.
*/
+ u64 last_snap_seq;
struct rw_semaphore snap_rwsem;
struct rb_root snap_realms;
struct list_head snap_empty;
spinlock_t snap_empty_lock; /* protect snap_empty */
u64 last_tid; /* most recent mds request */
+ u64 oldest_tid; /* oldest incomplete mds request,
+ excluding setfilelock requests */
struct rb_root request_tree; /* pending mds requests */
struct delayed_work delayed_work; /* delayed work */
unsigned long last_renew_caps; /* last time we renewed our caps */
@@ -298,7 +309,8 @@
struct list_head snap_flush_list; /* cap_snaps ready to flush */
spinlock_t snap_flush_lock;
- u64 cap_flush_seq;
+ u64 last_cap_flush_tid;
+ struct rb_root cap_flush_tree;
struct list_head cap_dirty; /* inodes with dirty caps */
struct list_head cap_dirty_migrating; /* ...that are migration... */
int num_cap_flushing; /* # caps we are flushing */
@@ -328,6 +340,9 @@
spinlock_t dentry_lru_lock;
struct list_head dentry_lru;
int num_dentry;
+
+ struct rw_semaphore pool_perm_rwsem;
+ struct rb_root pool_perm_tree;
};
extern const char *ceph_mds_op_name(int op);
@@ -379,8 +394,6 @@
kref_put(&req->r_kref, ceph_mdsc_release_request);
}
-extern int ceph_add_cap_releases(struct ceph_mds_client *mdsc,
- struct ceph_mds_session *session);
extern void ceph_send_cap_releases(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index a97e39f..233d906a 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -296,7 +296,7 @@
}
-static struct ceph_snap_context *empty_snapc;
+struct ceph_snap_context *ceph_empty_snapc;
/*
* build the snap context for a given realm.
@@ -338,9 +338,9 @@
return 0;
}
- if (num == 0 && realm->seq == empty_snapc->seq) {
- ceph_get_snap_context(empty_snapc);
- snapc = empty_snapc;
+ if (num == 0 && realm->seq == ceph_empty_snapc->seq) {
+ ceph_get_snap_context(ceph_empty_snapc);
+ snapc = ceph_empty_snapc;
goto done;
}
@@ -436,6 +436,14 @@
return 0;
}
+static bool has_new_snaps(struct ceph_snap_context *o,
+ struct ceph_snap_context *n)
+{
+ if (n->num_snaps == 0)
+ return false;
+ /* snaps are in descending order */
+ return n->snaps[0] > o->seq;
+}
/*
* When a snapshot is applied, the size/mtime inode metadata is queued
@@ -455,6 +463,7 @@
{
struct inode *inode = &ci->vfs_inode;
struct ceph_cap_snap *capsnap;
+ struct ceph_snap_context *old_snapc, *new_snapc;
int used, dirty;
capsnap = kzalloc(sizeof(*capsnap), GFP_NOFS);
@@ -467,6 +476,9 @@
used = __ceph_caps_used(ci);
dirty = __ceph_caps_dirty(ci);
+ old_snapc = ci->i_head_snapc;
+ new_snapc = ci->i_snap_realm->cached_context;
+
/*
* If there is a write in progress, treat that as a dirty Fw,
* even though it hasn't completed yet; by the time we finish
@@ -481,76 +493,95 @@
writes in progress now were started before the previous
cap_snap. lucky us. */
dout("queue_cap_snap %p already pending\n", inode);
- kfree(capsnap);
- } else if (ci->i_snap_realm->cached_context == empty_snapc) {
- dout("queue_cap_snap %p empty snapc\n", inode);
- kfree(capsnap);
- } else if (dirty & (CEPH_CAP_AUTH_EXCL|CEPH_CAP_XATTR_EXCL|
- CEPH_CAP_FILE_EXCL|CEPH_CAP_FILE_WR)) {
- struct ceph_snap_context *snapc = ci->i_head_snapc;
-
- /*
- * if we are a sync write, we may need to go to the snaprealm
- * to get the current snapc.
- */
- if (!snapc)
- snapc = ci->i_snap_realm->cached_context;
-
- dout("queue_cap_snap %p cap_snap %p queuing under %p %s\n",
- inode, capsnap, snapc, ceph_cap_string(dirty));
- ihold(inode);
-
- atomic_set(&capsnap->nref, 1);
- capsnap->ci = ci;
- INIT_LIST_HEAD(&capsnap->ci_item);
- INIT_LIST_HEAD(&capsnap->flushing_item);
-
- capsnap->follows = snapc->seq;
- capsnap->issued = __ceph_caps_issued(ci, NULL);
- capsnap->dirty = dirty;
-
- capsnap->mode = inode->i_mode;
- capsnap->uid = inode->i_uid;
- capsnap->gid = inode->i_gid;
-
- if (dirty & CEPH_CAP_XATTR_EXCL) {
- __ceph_build_xattrs_blob(ci);
- capsnap->xattr_blob =
- ceph_buffer_get(ci->i_xattrs.blob);
- capsnap->xattr_version = ci->i_xattrs.version;
- } else {
- capsnap->xattr_blob = NULL;
- capsnap->xattr_version = 0;
- }
-
- capsnap->inline_data = ci->i_inline_version != CEPH_INLINE_NONE;
-
- /* dirty page count moved from _head to this cap_snap;
- all subsequent writes page dirties occur _after_ this
- snapshot. */
- capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
- ci->i_wrbuffer_ref_head = 0;
- capsnap->context = snapc;
- ci->i_head_snapc =
- ceph_get_snap_context(ci->i_snap_realm->cached_context);
- dout(" new snapc is %p\n", ci->i_head_snapc);
- list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
-
- if (used & CEPH_CAP_FILE_WR) {
- dout("queue_cap_snap %p cap_snap %p snapc %p"
- " seq %llu used WR, now pending\n", inode,
- capsnap, snapc, snapc->seq);
- capsnap->writing = 1;
- } else {
- /* note mtime, size NOW. */
- __ceph_finish_cap_snap(ci, capsnap);
- }
- } else {
+ goto update_snapc;
+ }
+ if (ci->i_wrbuffer_ref_head == 0 &&
+ !(dirty & (CEPH_CAP_ANY_EXCL|CEPH_CAP_FILE_WR))) {
dout("queue_cap_snap %p nothing dirty|writing\n", inode);
- kfree(capsnap);
+ goto update_snapc;
}
+ BUG_ON(!old_snapc);
+
+ /*
+ * There is no need to send FLUSHSNAP message to MDS if there is
+ * no new snapshot. But when there is dirty pages or on-going
+ * writes, we still need to create cap_snap. cap_snap is needed
+ * by the write path and page writeback path.
+ *
+ * also see ceph_try_drop_cap_snap()
+ */
+ if (has_new_snaps(old_snapc, new_snapc)) {
+ if (dirty & (CEPH_CAP_ANY_EXCL|CEPH_CAP_FILE_WR))
+ capsnap->need_flush = true;
+ } else {
+ if (!(used & CEPH_CAP_FILE_WR) &&
+ ci->i_wrbuffer_ref_head == 0) {
+ dout("queue_cap_snap %p "
+ "no new_snap|dirty_page|writing\n", inode);
+ goto update_snapc;
+ }
+ }
+
+ dout("queue_cap_snap %p cap_snap %p queuing under %p %s %s\n",
+ inode, capsnap, old_snapc, ceph_cap_string(dirty),
+ capsnap->need_flush ? "" : "no_flush");
+ ihold(inode);
+
+ atomic_set(&capsnap->nref, 1);
+ capsnap->ci = ci;
+ INIT_LIST_HEAD(&capsnap->ci_item);
+ INIT_LIST_HEAD(&capsnap->flushing_item);
+
+ capsnap->follows = old_snapc->seq;
+ capsnap->issued = __ceph_caps_issued(ci, NULL);
+ capsnap->dirty = dirty;
+
+ capsnap->mode = inode->i_mode;
+ capsnap->uid = inode->i_uid;
+ capsnap->gid = inode->i_gid;
+
+ if (dirty & CEPH_CAP_XATTR_EXCL) {
+ __ceph_build_xattrs_blob(ci);
+ capsnap->xattr_blob =
+ ceph_buffer_get(ci->i_xattrs.blob);
+ capsnap->xattr_version = ci->i_xattrs.version;
+ } else {
+ capsnap->xattr_blob = NULL;
+ capsnap->xattr_version = 0;
+ }
+
+ capsnap->inline_data = ci->i_inline_version != CEPH_INLINE_NONE;
+
+ /* dirty page count moved from _head to this cap_snap;
+ all subsequent writes page dirties occur _after_ this
+ snapshot. */
+ capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
+ ci->i_wrbuffer_ref_head = 0;
+ capsnap->context = old_snapc;
+ list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
+ old_snapc = NULL;
+
+ if (used & CEPH_CAP_FILE_WR) {
+ dout("queue_cap_snap %p cap_snap %p snapc %p"
+ " seq %llu used WR, now pending\n", inode,
+ capsnap, old_snapc, old_snapc->seq);
+ capsnap->writing = 1;
+ } else {
+ /* note mtime, size NOW. */
+ __ceph_finish_cap_snap(ci, capsnap);
+ }
+ capsnap = NULL;
+
+update_snapc:
+ if (ci->i_head_snapc) {
+ ci->i_head_snapc = ceph_get_snap_context(new_snapc);
+ dout(" new snapc is %p\n", new_snapc);
+ }
spin_unlock(&ci->i_ceph_lock);
+
+ kfree(capsnap);
+ ceph_put_snap_context(old_snapc);
}
/*
@@ -699,6 +730,8 @@
/* queue realm for cap_snap creation */
list_add(&realm->dirty_item, &dirty_realms);
+ if (realm->seq > mdsc->last_snap_seq)
+ mdsc->last_snap_seq = realm->seq;
invalidate = 1;
} else if (!realm->cached_context) {
@@ -964,14 +997,14 @@
int __init ceph_snap_init(void)
{
- empty_snapc = ceph_create_snap_context(0, GFP_NOFS);
- if (!empty_snapc)
+ ceph_empty_snapc = ceph_create_snap_context(0, GFP_NOFS);
+ if (!ceph_empty_snapc)
return -ENOMEM;
- empty_snapc->seq = 1;
+ ceph_empty_snapc->seq = 1;
return 0;
}
void ceph_snap_exit(void)
{
- ceph_put_snap_context(empty_snapc);
+ ceph_put_snap_context(ceph_empty_snapc);
}
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 4e99053..d1c833c 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -134,10 +134,12 @@
Opt_noino32,
Opt_fscache,
Opt_nofscache,
+ Opt_poolperm,
+ Opt_nopoolperm,
#ifdef CONFIG_CEPH_FS_POSIX_ACL
Opt_acl,
#endif
- Opt_noacl
+ Opt_noacl,
};
static match_table_t fsopt_tokens = {
@@ -165,6 +167,8 @@
{Opt_noino32, "noino32"},
{Opt_fscache, "fsc"},
{Opt_nofscache, "nofsc"},
+ {Opt_poolperm, "poolperm"},
+ {Opt_nopoolperm, "nopoolperm"},
#ifdef CONFIG_CEPH_FS_POSIX_ACL
{Opt_acl, "acl"},
#endif
@@ -268,6 +272,13 @@
case Opt_nofscache:
fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
break;
+ case Opt_poolperm:
+ fsopt->flags &= ~CEPH_MOUNT_OPT_NOPOOLPERM;
+ printk ("pool perm");
+ break;
+ case Opt_nopoolperm:
+ fsopt->flags |= CEPH_MOUNT_OPT_NOPOOLPERM;
+ break;
#ifdef CONFIG_CEPH_FS_POSIX_ACL
case Opt_acl:
fsopt->sb_flags |= MS_POSIXACL;
@@ -436,6 +447,8 @@
seq_puts(m, ",nodcache");
if (fsopt->flags & CEPH_MOUNT_OPT_FSCACHE)
seq_puts(m, ",fsc");
+ if (fsopt->flags & CEPH_MOUNT_OPT_NOPOOLPERM)
+ seq_puts(m, ",nopoolperm");
#ifdef CONFIG_CEPH_FS_POSIX_ACL
if (fsopt->sb_flags & MS_POSIXACL)
@@ -609,6 +622,7 @@
*/
struct kmem_cache *ceph_inode_cachep;
struct kmem_cache *ceph_cap_cachep;
+struct kmem_cache *ceph_cap_flush_cachep;
struct kmem_cache *ceph_dentry_cachep;
struct kmem_cache *ceph_file_cachep;
@@ -634,6 +648,10 @@
SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
if (ceph_cap_cachep == NULL)
goto bad_cap;
+ ceph_cap_flush_cachep = KMEM_CACHE(ceph_cap_flush,
+ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
+ if (ceph_cap_flush_cachep == NULL)
+ goto bad_cap_flush;
ceph_dentry_cachep = KMEM_CACHE(ceph_dentry_info,
SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD);
@@ -652,6 +670,8 @@
bad_file:
kmem_cache_destroy(ceph_dentry_cachep);
bad_dentry:
+ kmem_cache_destroy(ceph_cap_flush_cachep);
+bad_cap_flush:
kmem_cache_destroy(ceph_cap_cachep);
bad_cap:
kmem_cache_destroy(ceph_inode_cachep);
@@ -668,6 +688,7 @@
kmem_cache_destroy(ceph_inode_cachep);
kmem_cache_destroy(ceph_cap_cachep);
+ kmem_cache_destroy(ceph_cap_flush_cachep);
kmem_cache_destroy(ceph_dentry_cachep);
kmem_cache_destroy(ceph_file_cachep);
@@ -729,7 +750,7 @@
req->r_ino1.ino = CEPH_INO_ROOT;
req->r_ino1.snap = CEPH_NOSNAP;
req->r_started = started;
- req->r_timeout = fsc->client->options->mount_timeout * HZ;
+ req->r_timeout = fsc->client->options->mount_timeout;
req->r_args.getattr.mask = cpu_to_le32(CEPH_STAT_CAP_INODE);
req->r_num_caps = 2;
err = ceph_mdsc_do_request(mdsc, NULL, req);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index fa20e13..860cc016 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -35,6 +35,7 @@
#define CEPH_MOUNT_OPT_INO32 (1<<8) /* 32 bit inos */
#define CEPH_MOUNT_OPT_DCACHE (1<<9) /* use dcache for readdir etc */
#define CEPH_MOUNT_OPT_FSCACHE (1<<10) /* use fscache */
+#define CEPH_MOUNT_OPT_NOPOOLPERM (1<<11) /* no pool permission check */
#define CEPH_MOUNT_OPT_DEFAULT (CEPH_MOUNT_OPT_RBYTES | \
CEPH_MOUNT_OPT_DCACHE)
@@ -121,11 +122,21 @@
struct rb_node ci_node; /* per-ci cap tree */
struct ceph_mds_session *session;
struct list_head session_caps; /* per-session caplist */
- int mds;
u64 cap_id; /* unique cap id (mds provided) */
- int issued; /* latest, from the mds */
- int implemented; /* implemented superset of issued (for revocation) */
- int mds_wanted;
+ union {
+ /* in-use caps */
+ struct {
+ int issued; /* latest, from the mds */
+ int implemented; /* implemented superset of
+ issued (for revocation) */
+ int mds, mds_wanted;
+ };
+ /* caps to release */
+ struct {
+ u64 cap_ino;
+ int queue_release;
+ };
+ };
u32 seq, issue_seq, mseq;
u32 cap_gen; /* active/stale cycle */
unsigned long last_used;
@@ -163,6 +174,7 @@
int writing; /* a sync write is still in progress */
int dirty_pages; /* dirty pages awaiting writeback */
bool inline_data;
+ bool need_flush;
};
static inline void ceph_put_cap_snap(struct ceph_cap_snap *capsnap)
@@ -174,6 +186,17 @@
}
}
+struct ceph_cap_flush {
+ u64 tid;
+ int caps;
+ bool kick;
+ struct rb_node g_node; // global
+ union {
+ struct rb_node i_node; // inode
+ struct list_head list;
+ };
+};
+
/*
* The frag tree describes how a directory is fragmented, potentially across
* multiple metadata servers. It is also used to indicate points where
@@ -259,9 +282,9 @@
u32 i_time_warp_seq;
unsigned i_ceph_flags;
- int i_ordered_count;
- atomic_t i_release_count;
- atomic_t i_complete_count;
+ atomic64_t i_release_count;
+ atomic64_t i_ordered_count;
+ atomic64_t i_complete_seq[2];
struct ceph_dir_layout i_dir_layout;
struct ceph_file_layout i_layout;
@@ -283,11 +306,11 @@
struct ceph_cap *i_auth_cap; /* authoritative cap, if any */
unsigned i_dirty_caps, i_flushing_caps; /* mask of dirtied fields */
struct list_head i_dirty_item, i_flushing_item;
- u64 i_cap_flush_seq;
/* we need to track cap writeback on a per-cap-bit basis, to allow
* overlapping, pipelined cap flushes to the mds. we can probably
* reduce the tid to 8 bits if we're concerned about inode size. */
- u16 i_cap_flush_last_tid, i_cap_flush_tid[CEPH_CAP_BITS];
+ struct ceph_cap_flush *i_prealloc_cap_flush;
+ struct rb_root i_cap_flush_tree;
wait_queue_head_t i_cap_wq; /* threads waiting on a capability */
unsigned long i_hold_caps_min; /* jiffies */
unsigned long i_hold_caps_max; /* jiffies */
@@ -438,36 +461,46 @@
/*
* Ceph inode.
*/
-#define CEPH_I_DIR_ORDERED 1 /* dentries in dir are ordered */
-#define CEPH_I_NODELAY 4 /* do not delay cap release */
-#define CEPH_I_FLUSH 8 /* do not delay flush of dirty metadata */
-#define CEPH_I_NOFLUSH 16 /* do not flush dirty caps */
+#define CEPH_I_DIR_ORDERED (1 << 0) /* dentries in dir are ordered */
+#define CEPH_I_NODELAY (1 << 1) /* do not delay cap release */
+#define CEPH_I_FLUSH (1 << 2) /* do not delay flush of dirty metadata */
+#define CEPH_I_NOFLUSH (1 << 3) /* do not flush dirty caps */
+#define CEPH_I_POOL_PERM (1 << 4) /* pool rd/wr bits are valid */
+#define CEPH_I_POOL_RD (1 << 5) /* can read from pool */
+#define CEPH_I_POOL_WR (1 << 6) /* can write to pool */
+
static inline void __ceph_dir_set_complete(struct ceph_inode_info *ci,
- int release_count, int ordered_count)
+ long long release_count,
+ long long ordered_count)
{
- atomic_set(&ci->i_complete_count, release_count);
- if (ci->i_ordered_count == ordered_count)
- ci->i_ceph_flags |= CEPH_I_DIR_ORDERED;
- else
- ci->i_ceph_flags &= ~CEPH_I_DIR_ORDERED;
+ smp_mb__before_atomic();
+ atomic64_set(&ci->i_complete_seq[0], release_count);
+ atomic64_set(&ci->i_complete_seq[1], ordered_count);
}
static inline void __ceph_dir_clear_complete(struct ceph_inode_info *ci)
{
- atomic_inc(&ci->i_release_count);
+ atomic64_inc(&ci->i_release_count);
+}
+
+static inline void __ceph_dir_clear_ordered(struct ceph_inode_info *ci)
+{
+ atomic64_inc(&ci->i_ordered_count);
}
static inline bool __ceph_dir_is_complete(struct ceph_inode_info *ci)
{
- return atomic_read(&ci->i_complete_count) ==
- atomic_read(&ci->i_release_count);
+ return atomic64_read(&ci->i_complete_seq[0]) ==
+ atomic64_read(&ci->i_release_count);
}
static inline bool __ceph_dir_is_complete_ordered(struct ceph_inode_info *ci)
{
- return __ceph_dir_is_complete(ci) &&
- (ci->i_ceph_flags & CEPH_I_DIR_ORDERED);
+ return atomic64_read(&ci->i_complete_seq[0]) ==
+ atomic64_read(&ci->i_release_count) &&
+ atomic64_read(&ci->i_complete_seq[1]) ==
+ atomic64_read(&ci->i_ordered_count);
}
static inline void ceph_dir_clear_complete(struct inode *inode)
@@ -477,20 +510,13 @@
static inline void ceph_dir_clear_ordered(struct inode *inode)
{
- struct ceph_inode_info *ci = ceph_inode(inode);
- spin_lock(&ci->i_ceph_lock);
- ci->i_ordered_count++;
- ci->i_ceph_flags &= ~CEPH_I_DIR_ORDERED;
- spin_unlock(&ci->i_ceph_lock);
+ __ceph_dir_clear_ordered(ceph_inode(inode));
}
static inline bool ceph_dir_is_complete_ordered(struct inode *inode)
{
- struct ceph_inode_info *ci = ceph_inode(inode);
- bool ret;
- spin_lock(&ci->i_ceph_lock);
- ret = __ceph_dir_is_complete_ordered(ci);
- spin_unlock(&ci->i_ceph_lock);
+ bool ret = __ceph_dir_is_complete_ordered(ceph_inode(inode));
+ smp_rmb();
return ret;
}
@@ -552,7 +578,10 @@
{
return ci->i_dirty_caps | ci->i_flushing_caps;
}
-extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask);
+extern struct ceph_cap_flush *ceph_alloc_cap_flush(void);
+extern void ceph_free_cap_flush(struct ceph_cap_flush *cf);
+extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask,
+ struct ceph_cap_flush **pcf);
extern int __ceph_caps_revoking_other(struct ceph_inode_info *ci,
struct ceph_cap *ocap, int mask);
@@ -606,16 +635,20 @@
unsigned offset; /* offset of last chunk, adjusted for . and .. */
unsigned next_offset; /* offset of next chunk (last_name's + 1) */
char *last_name; /* last entry in previous chunk */
- struct dentry *dentry; /* next dentry (for dcache readdir) */
- int dir_release_count;
- int dir_ordered_count;
+ long long dir_release_count;
+ long long dir_ordered_count;
+ int readdir_cache_idx;
/* used for -o dirstat read() on directory thing */
char *dir_info;
int dir_info_len;
};
-
+struct ceph_readdir_cache_control {
+ struct page *page;
+ struct dentry **dentries;
+ int index;
+};
/*
* A "snap realm" describes a subset of the file hierarchy sharing
@@ -687,6 +720,7 @@
/* snap.c */
+extern struct ceph_snap_context *ceph_empty_snapc;
struct ceph_snap_realm *ceph_lookup_snap_realm(struct ceph_mds_client *mdsc,
u64 ino);
extern void ceph_get_snap_realm(struct ceph_mds_client *mdsc,
@@ -713,8 +747,8 @@
static inline bool __ceph_have_pending_cap_snap(struct ceph_inode_info *ci)
{
return !list_empty(&ci->i_cap_snaps) &&
- list_entry(ci->i_cap_snaps.prev, struct ceph_cap_snap,
- ci_item)->writing;
+ list_last_entry(&ci->i_cap_snaps, struct ceph_cap_snap,
+ ci_item)->writing;
}
/* inode.c */
@@ -838,12 +872,12 @@
struct ceph_cap *cap);
extern int ceph_is_any_caps(struct inode *inode);
-extern void __queue_cap_release(struct ceph_mds_session *session, u64 ino,
- u64 cap_id, u32 migrate_seq, u32 issue_seq);
extern void ceph_queue_caps_release(struct inode *inode);
extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
extern int ceph_fsync(struct file *file, loff_t start, loff_t end,
int datasync);
+extern void ceph_early_kick_flushing_caps(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session);
extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,
@@ -879,6 +913,9 @@
/* addr.c */
extern const struct address_space_operations ceph_aops;
extern int ceph_mmap(struct file *file, struct vm_area_struct *vma);
+extern int ceph_uninline_data(struct file *filp, struct page *locked_page);
+extern int ceph_pool_perm_check(struct ceph_inode_info *ci, int need);
+extern void ceph_pool_perm_destroy(struct ceph_mds_client* mdsc);
/* file.c */
extern const struct file_operations ceph_file_fops;
@@ -890,7 +927,6 @@
extern int ceph_release(struct inode *inode, struct file *filp);
extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
char *data, size_t len);
-int ceph_uninline_data(struct file *filp, struct page *locked_page);
/* dir.c */
extern const struct file_operations ceph_dir_fops;
extern const struct file_operations ceph_snapdir_fops;
@@ -911,6 +947,7 @@
extern void ceph_invalidate_dentry_lease(struct dentry *dentry);
extern unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn);
extern struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry);
+extern void ceph_readdir_cache_release(struct ceph_readdir_cache_control *ctl);
/*
* our d_ops vary depending on whether the inode is live,
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index cd7ffad4..819163d 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -911,6 +911,8 @@
struct inode *inode = d_inode(dentry);
struct ceph_vxattr *vxattr;
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
+ struct ceph_cap_flush *prealloc_cf = NULL;
int issued;
int err;
int dirty = 0;
@@ -920,6 +922,7 @@
char *newval = NULL;
struct ceph_inode_xattr *xattr = NULL;
int required_blob_size;
+ bool lock_snap_rwsem = false;
if (!ceph_is_valid_xattr(name))
return -EOPNOTSUPP;
@@ -948,12 +951,27 @@
if (!xattr)
goto out;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ goto out;
+
spin_lock(&ci->i_ceph_lock);
retry:
issued = __ceph_caps_issued(ci, NULL);
- dout("setxattr %p issued %s\n", inode, ceph_cap_string(issued));
if (ci->i_xattrs.version == 0 || !(issued & CEPH_CAP_XATTR_EXCL))
goto do_sync;
+
+ if (!lock_snap_rwsem && !ci->i_head_snapc) {
+ lock_snap_rwsem = true;
+ if (!down_read_trylock(&mdsc->snap_rwsem)) {
+ spin_unlock(&ci->i_ceph_lock);
+ down_read(&mdsc->snap_rwsem);
+ spin_lock(&ci->i_ceph_lock);
+ goto retry;
+ }
+ }
+
+ dout("setxattr %p issued %s\n", inode, ceph_cap_string(issued));
__build_xattrs(inode);
required_blob_size = __get_required_blob_size(ci, name_len, val_len);
@@ -966,7 +984,7 @@
dout(" preaallocating new blob size=%d\n", required_blob_size);
blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
if (!blob)
- goto out;
+ goto do_sync_unlocked;
spin_lock(&ci->i_ceph_lock);
if (ci->i_xattrs.prealloc_blob)
ceph_buffer_put(ci->i_xattrs.prealloc_blob);
@@ -978,21 +996,28 @@
flags, value ? 1 : -1, &xattr);
if (!err) {
- dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
+ &prealloc_cf);
ci->i_xattrs.dirty = true;
inode->i_ctime = CURRENT_TIME;
}
spin_unlock(&ci->i_ceph_lock);
+ if (lock_snap_rwsem)
+ up_read(&mdsc->snap_rwsem);
if (dirty)
__mark_inode_dirty(inode, dirty);
+ ceph_free_cap_flush(prealloc_cf);
return err;
do_sync:
spin_unlock(&ci->i_ceph_lock);
do_sync_unlocked:
+ if (lock_snap_rwsem)
+ up_read(&mdsc->snap_rwsem);
err = ceph_sync_setxattr(dentry, name, value, size, flags);
out:
+ ceph_free_cap_flush(prealloc_cf);
kfree(newname);
kfree(newval);
kfree(xattr);
@@ -1044,10 +1069,13 @@
struct inode *inode = d_inode(dentry);
struct ceph_vxattr *vxattr;
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
+ struct ceph_cap_flush *prealloc_cf = NULL;
int issued;
int err;
int required_blob_size;
int dirty;
+ bool lock_snap_rwsem = false;
if (!ceph_is_valid_xattr(name))
return -EOPNOTSUPP;
@@ -1060,14 +1088,29 @@
if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN))
goto do_sync_unlocked;
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return -ENOMEM;
+
err = -ENOMEM;
spin_lock(&ci->i_ceph_lock);
retry:
issued = __ceph_caps_issued(ci, NULL);
- dout("removexattr %p issued %s\n", inode, ceph_cap_string(issued));
-
if (ci->i_xattrs.version == 0 || !(issued & CEPH_CAP_XATTR_EXCL))
goto do_sync;
+
+ if (!lock_snap_rwsem && !ci->i_head_snapc) {
+ lock_snap_rwsem = true;
+ if (!down_read_trylock(&mdsc->snap_rwsem)) {
+ spin_unlock(&ci->i_ceph_lock);
+ down_read(&mdsc->snap_rwsem);
+ spin_lock(&ci->i_ceph_lock);
+ goto retry;
+ }
+ }
+
+ dout("removexattr %p issued %s\n", inode, ceph_cap_string(issued));
+
__build_xattrs(inode);
required_blob_size = __get_required_blob_size(ci, 0, 0);
@@ -1080,7 +1123,7 @@
dout(" preaallocating new blob size=%d\n", required_blob_size);
blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
if (!blob)
- goto out;
+ goto do_sync_unlocked;
spin_lock(&ci->i_ceph_lock);
if (ci->i_xattrs.prealloc_blob)
ceph_buffer_put(ci->i_xattrs.prealloc_blob);
@@ -1090,18 +1133,24 @@
err = __remove_xattr_by_name(ceph_inode(inode), name);
- dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
+ &prealloc_cf);
ci->i_xattrs.dirty = true;
inode->i_ctime = CURRENT_TIME;
spin_unlock(&ci->i_ceph_lock);
+ if (lock_snap_rwsem)
+ up_read(&mdsc->snap_rwsem);
if (dirty)
__mark_inode_dirty(inode, dirty);
+ ceph_free_cap_flush(prealloc_cf);
return err;
do_sync:
spin_unlock(&ci->i_ceph_lock);
do_sync_unlocked:
+ if (lock_snap_rwsem)
+ up_read(&mdsc->snap_rwsem);
+ ceph_free_cap_flush(prealloc_cf);
err = ceph_send_removexattr(dentry, name);
-out:
return err;
}
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index d6f7a76..f829fe9 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -79,7 +79,7 @@
static inline struct coda_inode_info *ITOC(struct inode *inode)
{
- return list_entry(inode, struct coda_inode_info, vfs_inode);
+ return container_of(inode, struct coda_inode_info, vfs_inode);
}
static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6b8e2f0..48851f6 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -896,6 +896,7 @@
/* 'X' - originally XFS but some now in the VFS */
COMPATIBLE_IOCTL(FIFREEZE)
COMPATIBLE_IOCTL(FITHAW)
+COMPATIBLE_IOCTL(FITRIM)
COMPATIBLE_IOCTL(KDGETKEYCODE)
COMPATIBLE_IOCTL(KDSETKEYCODE)
COMPATIBLE_IOCTL(KDGKBTYPE)
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index 8d89f5f..eae8757 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -236,7 +236,7 @@
if (dentry) {
spin_lock(&dentry->d_lock);
- if (!d_unhashed(dentry) && d_really_is_positive(dentry)) {
+ if (simple_positive(dentry)) {
dget_dlock(dentry);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 5373567..a8f3b58 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -129,8 +129,6 @@
}
-static struct kobject *config_kobj;
-
static int __init configfs_init(void)
{
int err = -ENOMEM;
@@ -141,8 +139,8 @@
if (!configfs_dir_cachep)
goto out;
- config_kobj = kobject_create_and_add("config", kernel_kobj);
- if (!config_kobj)
+ err = sysfs_create_mount_point(kernel_kobj, "config");
+ if (err)
goto out2;
err = register_filesystem(&configfs_fs_type);
@@ -152,7 +150,7 @@
return 0;
out3:
pr_err("Unable to register filesystem!\n");
- kobject_put(config_kobj);
+ sysfs_remove_mount_point(kernel_kobj, "config");
out2:
kmem_cache_destroy(configfs_dir_cachep);
configfs_dir_cachep = NULL;
@@ -163,7 +161,7 @@
static void __exit configfs_exit(void)
{
unregister_filesystem(&configfs_fs_type);
- kobject_put(config_kobj);
+ sysfs_remove_mount_point(kernel_kobj, "config");
kmem_cache_destroy(configfs_dir_cachep);
configfs_dir_cachep = NULL;
}
diff --git a/fs/coredump.c b/fs/coredump.c
index e52e006..c5ecde6 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -140,7 +140,7 @@
goto put_exe_file;
}
- path = d_path(&exe_file->f_path, pathbuf, PATH_MAX);
+ path = file_path(exe_file, pathbuf, PATH_MAX);
if (IS_ERR(path)) {
ret = PTR_ERR(path);
goto free_buf;
diff --git a/fs/dax.c b/fs/dax.c
index 99b5fbc..c3e21cc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -155,7 +155,7 @@
}
if (iov_iter_rw(iter) == WRITE)
- len = copy_from_iter(addr, max - pos, iter);
+ len = copy_from_iter_nocache(addr, max - pos, iter);
else if (!hole)
len = copy_to_iter(addr, max - pos, iter);
else
@@ -209,7 +209,8 @@
}
/* Protects against truncate */
- inode_dio_begin(inode);
+ if (!(flags & DIO_SKIP_DIO_COUNT))
+ inode_dio_begin(inode);
retval = dax_io(inode, iter, pos, end, get_block, &bh);
@@ -219,7 +220,8 @@
if ((retval > 0) && end_io)
end_io(iocb, pos, retval, bh.b_private);
- inode_dio_end(inode);
+ if (!(flags & DIO_SKIP_DIO_COUNT))
+ inode_dio_end(inode);
out:
return retval;
}
diff --git a/fs/dcache.c b/fs/dcache.c
index 592c4b5..5c8ea15 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -642,7 +642,7 @@
/*
* If we have a d_op->d_delete() operation, we sould not
- * let the dentry count go to zero, so use "put__or_lock".
+ * let the dentry count go to zero, so use "put_or_lock".
*/
if (unlikely(dentry->d_flags & DCACHE_OP_DELETE))
return lockref_put_or_lock(&dentry->d_lockref);
@@ -697,7 +697,7 @@
*/
smp_rmb();
d_flags = ACCESS_ONCE(dentry->d_flags);
- d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST;
+ d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED;
/* Nothing to do? Dropping the reference was all we needed? */
if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry))
@@ -776,6 +776,9 @@
if (unlikely(d_unhashed(dentry)))
goto kill_it;
+ if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+ goto kill_it;
+
if (unlikely(dentry->d_flags & DCACHE_OP_DELETE)) {
if (dentry->d_op->d_delete(dentry))
goto kill_it;
@@ -1673,7 +1676,8 @@
DCACHE_OP_COMPARE |
DCACHE_OP_REVALIDATE |
DCACHE_OP_WEAK_REVALIDATE |
- DCACHE_OP_DELETE ));
+ DCACHE_OP_DELETE |
+ DCACHE_OP_SELECT_INODE));
dentry->d_op = op;
if (!op)
return;
@@ -1689,6 +1693,8 @@
dentry->d_flags |= DCACHE_OP_DELETE;
if (op->d_prune)
dentry->d_flags |= DCACHE_OP_PRUNE;
+ if (op->d_select_inode)
+ dentry->d_flags |= DCACHE_OP_SELECT_INODE;
}
EXPORT_SYMBOL(d_set_d_op);
@@ -2927,17 +2933,6 @@
vfsmnt = &mnt->mnt;
continue;
}
- /*
- * Filesystems needing to implement special "root names"
- * should do so with ->d_dname()
- */
- if (IS_ROOT(dentry) &&
- (dentry->d_name.len != 1 ||
- dentry->d_name.name[0] != '/')) {
- WARN(1, "Root dentry has weird name <%.*s>\n",
- (int) dentry->d_name.len,
- dentry->d_name.name);
- }
if (!error)
error = is_mounted(vfsmnt) ? 1 : 2;
break;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 7eaec88..c711be8 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -44,11 +44,6 @@
return inode;
}
-static inline int debugfs_positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
struct debugfs_mount_opts {
kuid_t uid;
kgid_t gid;
@@ -522,7 +517,7 @@
{
int ret = 0;
- if (debugfs_positive(dentry)) {
+ if (simple_positive(dentry)) {
dget(dentry);
if (d_is_dir(dentry))
ret = simple_rmdir(d_inode(parent), dentry);
@@ -602,7 +597,7 @@
*/
spin_lock(&parent->d_lock);
list_for_each_entry(child, &parent->d_subdirs, d_child) {
- if (!debugfs_positive(child))
+ if (!simple_positive(child))
continue;
/* perhaps simple_empty(child) makes more sense */
@@ -623,7 +618,7 @@
* from d_subdirs. When releasing the parent->d_lock we can
* no longer trust that the next pointer is valid.
* Restart the loop. We'll skip this one with the
- * debugfs_positive() check.
+ * simple_positive() check.
*/
goto loop;
}
@@ -716,20 +711,17 @@
}
EXPORT_SYMBOL_GPL(debugfs_initialized);
-
-static struct kobject *debug_kobj;
-
static int __init debugfs_init(void)
{
int retval;
- debug_kobj = kobject_create_and_add("debug", kernel_kobj);
- if (!debug_kobj)
- return -EINVAL;
+ retval = sysfs_create_mount_point(kernel_kobj, "debug");
+ if (retval)
+ return retval;
retval = register_filesystem(&debug_fs_type);
if (retval)
- kobject_put(debug_kobj);
+ sysfs_remove_mount_point(kernel_kobj, "debug");
else
debugfs_registered = true;
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 72afcc6..feef8a9 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -325,7 +325,6 @@
return rc;
switch (cmd) {
- case FITRIM:
case FS_IOC32_GETFLAGS:
case FS_IOC32_SETFLAGS:
case FS_IOC32_GETVERSION:
diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c
index 4deb0b0..e5bb2ab 100644
--- a/fs/exofs/dir.c
+++ b/fs/exofs/dir.c
@@ -44,12 +44,6 @@
page_cache_release(page);
}
-/* Accesses dir's inode->i_size must be called under inode lock */
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-}
-
static unsigned exofs_last_byte(struct inode *inode, unsigned long page_nr)
{
loff_t last_byte = inode->i_size;
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 796b491..0c6638b 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -70,11 +70,6 @@
page_cache_release(page);
}
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
/*
* Return the offset into page `page_nr' of the last valid
* byte in that page, plus one.
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index aadb728..2553aa8 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -504,7 +504,7 @@
struct buffer_head *bh;
int err;
- bh = sb_getblk(inode->i_sb, pblk);
+ bh = sb_getblk_gfp(inode->i_sb, pblk, __GFP_MOVABLE | GFP_NOFS);
if (unlikely(!bh))
return ERR_PTR(-ENOMEM);
@@ -1089,7 +1089,7 @@
err = -EIO;
goto cleanup;
}
- bh = sb_getblk(inode->i_sb, newblock);
+ bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);
if (unlikely(!bh)) {
err = -ENOMEM;
goto cleanup;
@@ -1283,7 +1283,7 @@
if (newblock == 0)
return err;
- bh = sb_getblk(inode->i_sb, newblock);
+ bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);
if (unlikely(!bh))
return -ENOMEM;
lock_buffer(bh);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 41f8e55..cecf9aa 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1323,7 +1323,7 @@
unsigned int offset,
unsigned int length)
{
- int to_release = 0;
+ int to_release = 0, contiguous_blks = 0;
struct buffer_head *head, *bh;
unsigned int curr_off = 0;
struct inode *inode = page->mapping->host;
@@ -1344,14 +1344,23 @@
if ((offset <= curr_off) && (buffer_delay(bh))) {
to_release++;
+ contiguous_blks++;
clear_buffer_delay(bh);
+ } else if (contiguous_blks) {
+ lblk = page->index <<
+ (PAGE_CACHE_SHIFT - inode->i_blkbits);
+ lblk += (curr_off >> inode->i_blkbits) -
+ contiguous_blks;
+ ext4_es_remove_extent(inode, lblk, contiguous_blks);
+ contiguous_blks = 0;
}
curr_off = next_off;
} while ((bh = bh->b_this_page) != head);
- if (to_release) {
+ if (contiguous_blks) {
lblk = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
- ext4_es_remove_extent(inode, lblk, to_release);
+ lblk += (curr_off >> inode->i_blkbits) - contiguous_blks;
+ ext4_es_remove_extent(inode, lblk, contiguous_blks);
}
/* If we have released all the blocks belonging to a cluster, then we
@@ -4344,7 +4353,12 @@
int inode_size = EXT4_INODE_SIZE(sb);
oi.orig_ino = orig_ino;
- ino = (orig_ino & ~(inodes_per_block - 1)) + 1;
+ /*
+ * Calculate the first inode in the inode table block. Inode
+ * numbers are one-based. That is, the first inode in a block
+ * (assuming 4k blocks and 256 byte inodes) is (n*16 + 1).
+ */
+ ino = ((orig_ino - 1) & ~(inodes_per_block - 1)) + 1;
for (i = 0; i < inodes_per_block; i++, ino++, buf += inode_size) {
if (ino == orig_ino)
continue;
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index cb84512..1346cfa 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -755,7 +755,6 @@
return err;
}
case EXT4_IOC_MOVE_EXT:
- case FITRIM:
case EXT4_IOC_RESIZE_FS:
case EXT4_IOC_PRECACHE_EXTENTS:
case EXT4_IOC_SET_ENCRYPTION_POLICY:
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f6aedf8..34b610e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4816,18 +4816,12 @@
/*
* blocks being freed are metadata. these blocks shouldn't
* be used until this transaction is committed
+ *
+ * We use __GFP_NOFAIL because ext4_free_blocks() is not allowed
+ * to fail.
*/
- retry:
- new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
- if (!new_entry) {
- /*
- * We use a retry loop because
- * ext4_free_blocks() is not allowed to fail.
- */
- cond_resched();
- congestion_wait(BLK_RW_ASYNC, HZ/50);
- goto retry;
- }
+ new_entry = kmem_cache_alloc(ext4_free_data_cachep,
+ GFP_NOFS|__GFP_NOFAIL);
new_entry->efd_start_cluster = bit;
new_entry->efd_group = block_group;
new_entry->efd_count = count_clusters;
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index b52374e..6163ad2 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -620,6 +620,7 @@
struct ext4_inode_info *ei = EXT4_I(inode);
struct ext4_extent *ex;
unsigned int i, len;
+ ext4_lblk_t start, end;
ext4_fsblk_t blk;
handle_t *handle;
int ret;
@@ -633,6 +634,14 @@
EXT4_FEATURE_RO_COMPAT_BIGALLOC))
return -EOPNOTSUPP;
+ /*
+ * In order to get correct extent info, force all delayed allocation
+ * blocks to be allocated, otherwise delayed allocation blocks may not
+ * be reflected and bypass the checks on extent header.
+ */
+ if (test_opt(inode->i_sb, DELALLOC))
+ ext4_alloc_da_blocks(inode);
+
handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -650,11 +659,13 @@
goto errout;
}
if (eh->eh_entries == 0)
- blk = len = 0;
+ blk = len = start = end = 0;
else {
len = le16_to_cpu(ex->ee_len);
blk = ext4_ext_pblock(ex);
- if (len > EXT4_NDIR_BLOCKS) {
+ start = le32_to_cpu(ex->ee_block);
+ end = start + len - 1;
+ if (end >= EXT4_NDIR_BLOCKS) {
ret = -EOPNOTSUPP;
goto errout;
}
@@ -662,7 +673,7 @@
ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
memset(ei->i_data, 0, sizeof(ei->i_data));
- for (i=0; i < len; i++)
+ for (i = start; i <= end; i++)
ei->i_data[i] = cpu_to_le32(blk++);
ext4_mark_inode_dirty(handle, inode);
errout:
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5c78764..58987b5 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -452,7 +452,7 @@
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
if (ext4_error_ratelimit(inode->i_sb)) {
- path = d_path(&(file->f_path), pathname, sizeof(pathname));
+ path = file_path(file, pathname, sizeof(pathname));
if (IS_ERR(path))
path = "(unknown)";
va_start(args, fmt);
diff --git a/fs/file.c b/fs/file.c
index 93c5f89..6c672ad 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -147,6 +147,13 @@
spin_unlock(&files->file_lock);
new_fdt = alloc_fdtable(nr);
+
+ /* make sure all __fd_install() have seen resize_in_progress
+ * or have finished their rcu_read_lock_sched() section.
+ */
+ if (atomic_read(&files->count) > 1)
+ synchronize_sched();
+
spin_lock(&files->file_lock);
if (!new_fdt)
return -ENOMEM;
@@ -158,21 +165,14 @@
__free_fdtable(new_fdt);
return -EMFILE;
}
- /*
- * Check again since another task may have expanded the fd table while
- * we dropped the lock
- */
cur_fdt = files_fdtable(files);
- if (nr >= cur_fdt->max_fds) {
- /* Continue as planned */
- copy_fdtable(new_fdt, cur_fdt);
- rcu_assign_pointer(files->fdt, new_fdt);
- if (cur_fdt != &files->fdtab)
- call_rcu(&cur_fdt->rcu, free_fdtable_rcu);
- } else {
- /* Somebody else expanded, so undo our attempt */
- __free_fdtable(new_fdt);
- }
+ BUG_ON(nr < cur_fdt->max_fds);
+ copy_fdtable(new_fdt, cur_fdt);
+ rcu_assign_pointer(files->fdt, new_fdt);
+ if (cur_fdt != &files->fdtab)
+ call_rcu(&cur_fdt->rcu, free_fdtable_rcu);
+ /* coupled with smp_rmb() in __fd_install() */
+ smp_wmb();
return 1;
}
@@ -185,21 +185,38 @@
* The files->file_lock should be held on entry, and will be held on exit.
*/
static int expand_files(struct files_struct *files, int nr)
+ __releases(files->file_lock)
+ __acquires(files->file_lock)
{
struct fdtable *fdt;
+ int expanded = 0;
+repeat:
fdt = files_fdtable(files);
/* Do we need to expand? */
if (nr < fdt->max_fds)
- return 0;
+ return expanded;
/* Can we expand? */
if (nr >= sysctl_nr_open)
return -EMFILE;
+ if (unlikely(files->resize_in_progress)) {
+ spin_unlock(&files->file_lock);
+ expanded = 1;
+ wait_event(files->resize_wait, !files->resize_in_progress);
+ spin_lock(&files->file_lock);
+ goto repeat;
+ }
+
/* All good, so we try */
- return expand_fdtable(files, nr);
+ files->resize_in_progress = true;
+ expanded = expand_fdtable(files, nr);
+ files->resize_in_progress = false;
+
+ wake_up_all(&files->resize_wait);
+ return expanded;
}
static inline void __set_close_on_exec(int fd, struct fdtable *fdt)
@@ -256,6 +273,8 @@
atomic_set(&newf->count, 1);
spin_lock_init(&newf->file_lock);
+ newf->resize_in_progress = false;
+ init_waitqueue_head(&newf->resize_wait);
newf->next_fd = 0;
new_fdt = &newf->fdtab;
new_fdt->max_fds = NR_OPEN_DEFAULT;
@@ -553,11 +572,21 @@
struct file *file)
{
struct fdtable *fdt;
- spin_lock(&files->file_lock);
- fdt = files_fdtable(files);
+
+ might_sleep();
+ rcu_read_lock_sched();
+
+ while (unlikely(files->resize_in_progress)) {
+ rcu_read_unlock_sched();
+ wait_event(files->resize_wait, !files->resize_in_progress);
+ rcu_read_lock_sched();
+ }
+ /* coupled with smp_wmb() in expand_fdtable() */
+ smp_rmb();
+ fdt = rcu_dereference_sched(files->fdt);
BUG_ON(fdt->fd[fd] != NULL);
rcu_assign_pointer(fdt->fd[fd], file);
- spin_unlock(&files->file_lock);
+ rcu_read_unlock_sched();
}
void fd_install(unsigned int fd, struct file *file)
@@ -635,11 +664,17 @@
struct file *file;
rcu_read_lock();
+loop:
file = fcheck_files(files, fd);
if (file) {
- /* File object ref couldn't be taken */
- if ((file->f_mode & mask) || !get_file_rcu(file))
+ /* File object ref couldn't be taken.
+ * dup2() atomicity guarantee is the reason
+ * we loop to catch the new file (or NULL pointer)
+ */
+ if (file->f_mode & mask)
file = NULL;
+ else if (!get_file_rcu(file))
+ goto loop;
}
rcu_read_unlock();
diff --git a/fs/file_table.c b/fs/file_table.c
index 294174d..7f9d407 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -20,7 +20,6 @@
#include <linux/cdev.h>
#include <linux/fsnotify.h>
#include <linux/sysctl.h>
-#include <linux/lglock.h>
#include <linux/percpu_counter.h>
#include <linux/percpu.h>
#include <linux/hardirq.h>
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 99c7f0a..484b32d 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -61,13 +61,6 @@
.iterate = vxfs_readdir,
};
-
-static inline u_long
-dir_pages(struct inode *inode)
-{
- return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-}
-
static inline u_long
dir_blocks(struct inode *ip)
{
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 89acec7..d403c69 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -327,7 +327,8 @@
object_already_extant:
ret = -ENOBUFS;
- if (fscache_object_is_dead(object)) {
+ if (fscache_object_is_dying(object) ||
+ fscache_cache_is_broken(object)) {
spin_unlock(&cookie->lock);
goto error;
}
@@ -671,7 +672,7 @@
if (!op)
return -ENOMEM;
- fscache_operation_init(op, NULL, NULL);
+ fscache_operation_init(op, NULL, NULL, NULL);
op->flags = FSCACHE_OP_MYTHREAD |
(1 << FSCACHE_OP_WAITING) |
(1 << FSCACHE_OP_UNUSE_COOKIE);
@@ -695,8 +696,7 @@
/* the work queue now carries its own ref on the object */
spin_unlock(&cookie->lock);
- ret = fscache_wait_for_operation_activation(object, op,
- NULL, NULL, NULL);
+ ret = fscache_wait_for_operation_activation(object, op, NULL, NULL);
if (ret == 0) {
/* ask the cache to honour the operation */
ret = object->cache->ops->check_consistency(op);
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index 7872a62..97ec451 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -124,8 +124,7 @@
struct fscache_operation *);
extern int fscache_submit_op(struct fscache_object *,
struct fscache_operation *);
-extern int fscache_cancel_op(struct fscache_operation *,
- void (*)(struct fscache_operation *));
+extern int fscache_cancel_op(struct fscache_operation *, bool);
extern void fscache_cancel_all_ops(struct fscache_object *);
extern void fscache_abort_object(struct fscache_object *);
extern void fscache_start_operations(struct fscache_object *);
@@ -138,8 +137,7 @@
extern int fscache_wait_for_operation_activation(struct fscache_object *,
struct fscache_operation *,
atomic_t *,
- atomic_t *,
- void (*)(struct fscache_operation *));
+ atomic_t *);
extern void fscache_invalidate_writes(struct fscache_cookie *);
/*
@@ -164,6 +162,7 @@
extern atomic_t fscache_n_op_run;
extern atomic_t fscache_n_op_enqueue;
extern atomic_t fscache_n_op_deferred_release;
+extern atomic_t fscache_n_op_initialised;
extern atomic_t fscache_n_op_release;
extern atomic_t fscache_n_op_gc;
extern atomic_t fscache_n_op_cancelled;
@@ -271,6 +270,11 @@
extern atomic_t fscache_n_cop_uncache_page;
extern atomic_t fscache_n_cop_dissociate_pages;
+extern atomic_t fscache_n_cache_no_space_reject;
+extern atomic_t fscache_n_cache_stale_objects;
+extern atomic_t fscache_n_cache_retired_objects;
+extern atomic_t fscache_n_cache_culled_objects;
+
static inline void fscache_stat(atomic_t *stat)
{
atomic_inc(stat);
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index da032da..9e792e3 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -328,6 +328,17 @@
EXPORT_SYMBOL(fscache_object_init);
/*
+ * Mark the object as no longer being live, making sure that we synchronise
+ * against op submission.
+ */
+static inline void fscache_mark_object_dead(struct fscache_object *object)
+{
+ spin_lock(&object->lock);
+ clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags);
+ spin_unlock(&object->lock);
+}
+
+/*
* Abort object initialisation before we start it.
*/
static const struct fscache_state *fscache_abort_initialisation(struct fscache_object *object,
@@ -610,6 +621,8 @@
object->cache->ops->lookup_complete(object);
fscache_stat_d(&fscache_n_cop_lookup_complete);
+ set_bit(FSCACHE_OBJECT_KILLED_BY_CACHE, &object->flags);
+
cookie = object->cookie;
set_bit(FSCACHE_COOKIE_UNAVAILABLE, &cookie->flags);
if (test_and_clear_bit(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags))
@@ -629,7 +642,7 @@
_enter("{OBJ%x,%d,%d},%d",
object->debug_id, object->n_ops, object->n_children, event);
- clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags);
+ fscache_mark_object_dead(object);
object->oob_event_mask = 0;
if (list_empty(&object->dependents) &&
@@ -948,7 +961,8 @@
if (!op)
goto nomem;
- fscache_operation_init(op, object->cache->ops->invalidate_object, NULL);
+ fscache_operation_init(op, object->cache->ops->invalidate_object,
+ NULL, NULL);
op->flags = FSCACHE_OP_ASYNC |
(1 << FSCACHE_OP_EXCLUSIVE) |
(1 << FSCACHE_OP_UNUSE_COOKIE);
@@ -974,13 +988,13 @@
return transit_to(UPDATE_OBJECT);
nomem:
- clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags);
+ fscache_mark_object_dead(object);
fscache_unuse_cookie(object);
_leave(" [ENOMEM]");
return transit_to(KILL_OBJECT);
submit_op_failed:
- clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags);
+ fscache_mark_object_dead(object);
spin_unlock(&cookie->lock);
fscache_unuse_cookie(object);
kfree(op);
@@ -1016,3 +1030,50 @@
_leave("");
return transit_to(WAIT_FOR_CMD);
}
+
+/**
+ * fscache_object_retrying_stale - Note retrying stale object
+ * @object: The object that will be retried
+ *
+ * Note that an object lookup found an on-disk object that was adjudged to be
+ * stale and has been deleted. The lookup will be retried.
+ */
+void fscache_object_retrying_stale(struct fscache_object *object)
+{
+ fscache_stat(&fscache_n_cache_no_space_reject);
+}
+EXPORT_SYMBOL(fscache_object_retrying_stale);
+
+/**
+ * fscache_object_mark_killed - Note that an object was killed
+ * @object: The object that was culled
+ * @why: The reason the object was killed.
+ *
+ * Note that an object was killed. Returns true if the object was
+ * already marked killed, false if it wasn't.
+ */
+void fscache_object_mark_killed(struct fscache_object *object,
+ enum fscache_why_object_killed why)
+{
+ if (test_and_set_bit(FSCACHE_OBJECT_KILLED_BY_CACHE, &object->flags)) {
+ pr_err("Error: Object already killed by cache [%s]\n",
+ object->cache->identifier);
+ return;
+ }
+
+ switch (why) {
+ case FSCACHE_OBJECT_NO_SPACE:
+ fscache_stat(&fscache_n_cache_no_space_reject);
+ break;
+ case FSCACHE_OBJECT_IS_STALE:
+ fscache_stat(&fscache_n_cache_stale_objects);
+ break;
+ case FSCACHE_OBJECT_WAS_RETIRED:
+ fscache_stat(&fscache_n_cache_retired_objects);
+ break;
+ case FSCACHE_OBJECT_WAS_CULLED:
+ fscache_stat(&fscache_n_cache_culled_objects);
+ break;
+ }
+}
+EXPORT_SYMBOL(fscache_object_mark_killed);
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index e7b87a0..de67745 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -20,6 +20,35 @@
atomic_t fscache_op_debug_id;
EXPORT_SYMBOL(fscache_op_debug_id);
+static void fscache_operation_dummy_cancel(struct fscache_operation *op)
+{
+}
+
+/**
+ * fscache_operation_init - Do basic initialisation of an operation
+ * @op: The operation to initialise
+ * @release: The release function to assign
+ *
+ * Do basic initialisation of an operation. The caller must still set flags,
+ * object and processor if needed.
+ */
+void fscache_operation_init(struct fscache_operation *op,
+ fscache_operation_processor_t processor,
+ fscache_operation_cancel_t cancel,
+ fscache_operation_release_t release)
+{
+ INIT_WORK(&op->work, fscache_op_work_func);
+ atomic_set(&op->usage, 1);
+ op->state = FSCACHE_OP_ST_INITIALISED;
+ op->debug_id = atomic_inc_return(&fscache_op_debug_id);
+ op->processor = processor;
+ op->cancel = cancel ?: fscache_operation_dummy_cancel;
+ op->release = release;
+ INIT_LIST_HEAD(&op->pend_link);
+ fscache_stat(&fscache_n_op_initialised);
+}
+EXPORT_SYMBOL(fscache_operation_init);
+
/**
* fscache_enqueue_operation - Enqueue an operation for processing
* @op: The operation to enqueue
@@ -76,69 +105,6 @@
}
/*
- * submit an exclusive operation for an object
- * - other ops are excluded from running simultaneously with this one
- * - this gets any extra refs it needs on an op
- */
-int fscache_submit_exclusive_op(struct fscache_object *object,
- struct fscache_operation *op)
-{
- int ret;
-
- _enter("{OBJ%x OP%x},", object->debug_id, op->debug_id);
-
- ASSERTCMP(op->state, ==, FSCACHE_OP_ST_INITIALISED);
- ASSERTCMP(atomic_read(&op->usage), >, 0);
-
- spin_lock(&object->lock);
- ASSERTCMP(object->n_ops, >=, object->n_in_progress);
- ASSERTCMP(object->n_ops, >=, object->n_exclusive);
- ASSERT(list_empty(&op->pend_link));
-
- op->state = FSCACHE_OP_ST_PENDING;
- if (fscache_object_is_active(object)) {
- op->object = object;
- object->n_ops++;
- object->n_exclusive++; /* reads and writes must wait */
-
- if (object->n_in_progress > 0) {
- atomic_inc(&op->usage);
- list_add_tail(&op->pend_link, &object->pending_ops);
- fscache_stat(&fscache_n_op_pend);
- } else if (!list_empty(&object->pending_ops)) {
- atomic_inc(&op->usage);
- list_add_tail(&op->pend_link, &object->pending_ops);
- fscache_stat(&fscache_n_op_pend);
- fscache_start_operations(object);
- } else {
- ASSERTCMP(object->n_in_progress, ==, 0);
- fscache_run_op(object, op);
- }
-
- /* need to issue a new write op after this */
- clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
- ret = 0;
- } else if (test_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
- op->object = object;
- object->n_ops++;
- object->n_exclusive++; /* reads and writes must wait */
- atomic_inc(&op->usage);
- list_add_tail(&op->pend_link, &object->pending_ops);
- fscache_stat(&fscache_n_op_pend);
- ret = 0;
- } else {
- /* If we're in any other state, there must have been an I/O
- * error of some nature.
- */
- ASSERT(test_bit(FSCACHE_IOERROR, &object->cache->flags));
- ret = -EIO;
- }
-
- spin_unlock(&object->lock);
- return ret;
-}
-
-/*
* report an unexpected submission
*/
static void fscache_report_unexpected_submission(struct fscache_object *object,
@@ -176,6 +142,87 @@
}
/*
+ * submit an exclusive operation for an object
+ * - other ops are excluded from running simultaneously with this one
+ * - this gets any extra refs it needs on an op
+ */
+int fscache_submit_exclusive_op(struct fscache_object *object,
+ struct fscache_operation *op)
+{
+ const struct fscache_state *ostate;
+ unsigned long flags;
+ int ret;
+
+ _enter("{OBJ%x OP%x},", object->debug_id, op->debug_id);
+
+ ASSERTCMP(op->state, ==, FSCACHE_OP_ST_INITIALISED);
+ ASSERTCMP(atomic_read(&op->usage), >, 0);
+
+ spin_lock(&object->lock);
+ ASSERTCMP(object->n_ops, >=, object->n_in_progress);
+ ASSERTCMP(object->n_ops, >=, object->n_exclusive);
+ ASSERT(list_empty(&op->pend_link));
+
+ ostate = object->state;
+ smp_rmb();
+
+ op->state = FSCACHE_OP_ST_PENDING;
+ flags = READ_ONCE(object->flags);
+ if (unlikely(!(flags & BIT(FSCACHE_OBJECT_IS_LIVE)))) {
+ fscache_stat(&fscache_n_op_rejected);
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -ENOBUFS;
+ } else if (unlikely(fscache_cache_is_broken(object))) {
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -EIO;
+ } else if (flags & BIT(FSCACHE_OBJECT_IS_AVAILABLE)) {
+ op->object = object;
+ object->n_ops++;
+ object->n_exclusive++; /* reads and writes must wait */
+
+ if (object->n_in_progress > 0) {
+ atomic_inc(&op->usage);
+ list_add_tail(&op->pend_link, &object->pending_ops);
+ fscache_stat(&fscache_n_op_pend);
+ } else if (!list_empty(&object->pending_ops)) {
+ atomic_inc(&op->usage);
+ list_add_tail(&op->pend_link, &object->pending_ops);
+ fscache_stat(&fscache_n_op_pend);
+ fscache_start_operations(object);
+ } else {
+ ASSERTCMP(object->n_in_progress, ==, 0);
+ fscache_run_op(object, op);
+ }
+
+ /* need to issue a new write op after this */
+ clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
+ ret = 0;
+ } else if (flags & BIT(FSCACHE_OBJECT_IS_LOOKED_UP)) {
+ op->object = object;
+ object->n_ops++;
+ object->n_exclusive++; /* reads and writes must wait */
+ atomic_inc(&op->usage);
+ list_add_tail(&op->pend_link, &object->pending_ops);
+ fscache_stat(&fscache_n_op_pend);
+ ret = 0;
+ } else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) {
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -ENOBUFS;
+ } else {
+ fscache_report_unexpected_submission(object, op, ostate);
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -ENOBUFS;
+ }
+
+ spin_unlock(&object->lock);
+ return ret;
+}
+
+/*
* submit an operation for an object
* - objects may be submitted only in the following states:
* - during object creation (write ops may be submitted)
@@ -187,6 +234,7 @@
struct fscache_operation *op)
{
const struct fscache_state *ostate;
+ unsigned long flags;
int ret;
_enter("{OBJ%x OP%x},{%u}",
@@ -204,7 +252,17 @@
smp_rmb();
op->state = FSCACHE_OP_ST_PENDING;
- if (fscache_object_is_active(object)) {
+ flags = READ_ONCE(object->flags);
+ if (unlikely(!(flags & BIT(FSCACHE_OBJECT_IS_LIVE)))) {
+ fscache_stat(&fscache_n_op_rejected);
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -ENOBUFS;
+ } else if (unlikely(fscache_cache_is_broken(object))) {
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ ret = -EIO;
+ } else if (flags & BIT(FSCACHE_OBJECT_IS_AVAILABLE)) {
op->object = object;
object->n_ops++;
@@ -222,23 +280,21 @@
fscache_run_op(object, op);
}
ret = 0;
- } else if (test_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
+ } else if (flags & BIT(FSCACHE_OBJECT_IS_LOOKED_UP)) {
op->object = object;
object->n_ops++;
atomic_inc(&op->usage);
list_add_tail(&op->pend_link, &object->pending_ops);
fscache_stat(&fscache_n_op_pend);
ret = 0;
- } else if (fscache_object_is_dying(object)) {
- fscache_stat(&fscache_n_op_rejected);
- op->state = FSCACHE_OP_ST_CANCELLED;
- ret = -ENOBUFS;
- } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
- fscache_report_unexpected_submission(object, op, ostate);
- ASSERT(!fscache_object_is_active(object));
+ } else if (flags & BIT(FSCACHE_OBJECT_KILLED_BY_CACHE)) {
+ op->cancel(op);
op->state = FSCACHE_OP_ST_CANCELLED;
ret = -ENOBUFS;
} else {
+ fscache_report_unexpected_submission(object, op, ostate);
+ ASSERT(!fscache_object_is_active(object));
+ op->cancel(op);
op->state = FSCACHE_OP_ST_CANCELLED;
ret = -ENOBUFS;
}
@@ -293,9 +349,10 @@
* cancel an operation that's pending on an object
*/
int fscache_cancel_op(struct fscache_operation *op,
- void (*do_cancel)(struct fscache_operation *))
+ bool cancel_in_progress_op)
{
struct fscache_object *object = op->object;
+ bool put = false;
int ret;
_enter("OBJ%x OP%x}", op->object->debug_id, op->debug_id);
@@ -309,19 +366,37 @@
ret = -EBUSY;
if (op->state == FSCACHE_OP_ST_PENDING) {
ASSERT(!list_empty(&op->pend_link));
- fscache_stat(&fscache_n_op_cancelled);
list_del_init(&op->pend_link);
- if (do_cancel)
- do_cancel(op);
+ put = true;
+
+ fscache_stat(&fscache_n_op_cancelled);
+ op->cancel(op);
op->state = FSCACHE_OP_ST_CANCELLED;
if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
object->n_exclusive--;
if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
- fscache_put_operation(op);
+ ret = 0;
+ } else if (op->state == FSCACHE_OP_ST_IN_PROGRESS && cancel_in_progress_op) {
+ ASSERTCMP(object->n_in_progress, >, 0);
+ if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
+ object->n_exclusive--;
+ object->n_in_progress--;
+ if (object->n_in_progress == 0)
+ fscache_start_operations(object);
+
+ fscache_stat(&fscache_n_op_cancelled);
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
+ object->n_exclusive--;
+ if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
+ wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
ret = 0;
}
+ if (put)
+ fscache_put_operation(op);
spin_unlock(&object->lock);
_leave(" = %d", ret);
return ret;
@@ -345,6 +420,7 @@
list_del_init(&op->pend_link);
ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
+ op->cancel(op);
op->state = FSCACHE_OP_ST_CANCELLED;
if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
@@ -377,8 +453,12 @@
spin_lock(&object->lock);
- op->state = cancelled ?
- FSCACHE_OP_ST_CANCELLED : FSCACHE_OP_ST_COMPLETE;
+ if (!cancelled) {
+ op->state = FSCACHE_OP_ST_COMPLETE;
+ } else {
+ op->cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ }
if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
object->n_exclusive--;
@@ -409,9 +489,9 @@
return;
_debug("PUT OP");
- ASSERTIFCMP(op->state != FSCACHE_OP_ST_COMPLETE,
+ ASSERTIFCMP(op->state != FSCACHE_OP_ST_INITIALISED &&
+ op->state != FSCACHE_OP_ST_COMPLETE,
op->state, ==, FSCACHE_OP_ST_CANCELLED);
- op->state = FSCACHE_OP_ST_DEAD;
fscache_stat(&fscache_n_op_release);
@@ -419,37 +499,39 @@
op->release(op);
op->release = NULL;
}
+ op->state = FSCACHE_OP_ST_DEAD;
object = op->object;
+ if (likely(object)) {
+ if (test_bit(FSCACHE_OP_DEC_READ_CNT, &op->flags))
+ atomic_dec(&object->n_reads);
+ if (test_bit(FSCACHE_OP_UNUSE_COOKIE, &op->flags))
+ fscache_unuse_cookie(object);
- if (test_bit(FSCACHE_OP_DEC_READ_CNT, &op->flags))
- atomic_dec(&object->n_reads);
- if (test_bit(FSCACHE_OP_UNUSE_COOKIE, &op->flags))
- fscache_unuse_cookie(object);
+ /* now... we may get called with the object spinlock held, so we
+ * complete the cleanup here only if we can immediately acquire the
+ * lock, and defer it otherwise */
+ if (!spin_trylock(&object->lock)) {
+ _debug("defer put");
+ fscache_stat(&fscache_n_op_deferred_release);
- /* now... we may get called with the object spinlock held, so we
- * complete the cleanup here only if we can immediately acquire the
- * lock, and defer it otherwise */
- if (!spin_trylock(&object->lock)) {
- _debug("defer put");
- fscache_stat(&fscache_n_op_deferred_release);
+ cache = object->cache;
+ spin_lock(&cache->op_gc_list_lock);
+ list_add_tail(&op->pend_link, &cache->op_gc_list);
+ spin_unlock(&cache->op_gc_list_lock);
+ schedule_work(&cache->op_gc);
+ _leave(" [defer]");
+ return;
+ }
- cache = object->cache;
- spin_lock(&cache->op_gc_list_lock);
- list_add_tail(&op->pend_link, &cache->op_gc_list);
- spin_unlock(&cache->op_gc_list_lock);
- schedule_work(&cache->op_gc);
- _leave(" [defer]");
- return;
+ ASSERTCMP(object->n_ops, >, 0);
+ object->n_ops--;
+ if (object->n_ops == 0)
+ fscache_raise_event(object, FSCACHE_OBJECT_EV_CLEARED);
+
+ spin_unlock(&object->lock);
}
- ASSERTCMP(object->n_ops, >, 0);
- object->n_ops--;
- if (object->n_ops == 0)
- fscache_raise_event(object, FSCACHE_OBJECT_EV_CLEARED);
-
- spin_unlock(&object->lock);
-
kfree(op);
_leave(" [done]");
}
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index de33b3f..483bbc6 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -213,7 +213,7 @@
return -ENOMEM;
}
- fscache_operation_init(op, fscache_attr_changed_op, NULL);
+ fscache_operation_init(op, fscache_attr_changed_op, NULL, NULL);
op->flags = FSCACHE_OP_ASYNC |
(1 << FSCACHE_OP_EXCLUSIVE) |
(1 << FSCACHE_OP_UNUSE_COOKIE);
@@ -239,7 +239,7 @@
wake_cookie = __fscache_unuse_cookie(cookie);
nobufs:
spin_unlock(&cookie->lock);
- kfree(op);
+ fscache_put_operation(op);
if (wake_cookie)
__fscache_wake_unused_cookie(cookie);
fscache_stat(&fscache_n_attr_changed_nobufs);
@@ -249,6 +249,17 @@
EXPORT_SYMBOL(__fscache_attr_changed);
/*
+ * Handle cancellation of a pending retrieval op
+ */
+static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
+{
+ struct fscache_retrieval *op =
+ container_of(_op, struct fscache_retrieval, op);
+
+ atomic_set(&op->n_pages, 0);
+}
+
+/*
* release a retrieval op reference
*/
static void fscache_release_retrieval_op(struct fscache_operation *_op)
@@ -258,11 +269,12 @@
_enter("{OP%x}", op->op.debug_id);
- ASSERTCMP(atomic_read(&op->n_pages), ==, 0);
+ ASSERTIFCMP(op->op.state != FSCACHE_OP_ST_INITIALISED,
+ atomic_read(&op->n_pages), ==, 0);
fscache_hist(fscache_retrieval_histogram, op->start_time);
if (op->context)
- fscache_put_context(op->op.object->cookie, op->context);
+ fscache_put_context(op->cookie, op->context);
_leave("");
}
@@ -285,15 +297,24 @@
return NULL;
}
- fscache_operation_init(&op->op, NULL, fscache_release_retrieval_op);
+ fscache_operation_init(&op->op, NULL,
+ fscache_do_cancel_retrieval,
+ fscache_release_retrieval_op);
op->op.flags = FSCACHE_OP_MYTHREAD |
(1UL << FSCACHE_OP_WAITING) |
(1UL << FSCACHE_OP_UNUSE_COOKIE);
+ op->cookie = cookie;
op->mapping = mapping;
op->end_io_func = end_io_func;
op->context = context;
op->start_time = jiffies;
INIT_LIST_HEAD(&op->to_do);
+
+ /* Pin the netfs read context in case we need to do the actual netfs
+ * read because we've encountered a cache read failure.
+ */
+ if (context)
+ fscache_get_context(op->cookie, context);
return op;
}
@@ -330,24 +351,12 @@
}
/*
- * Handle cancellation of a pending retrieval op
- */
-static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
-{
- struct fscache_retrieval *op =
- container_of(_op, struct fscache_retrieval, op);
-
- atomic_set(&op->n_pages, 0);
-}
-
-/*
* wait for an object to become active (or dead)
*/
int fscache_wait_for_operation_activation(struct fscache_object *object,
struct fscache_operation *op,
atomic_t *stat_op_waits,
- atomic_t *stat_object_dead,
- void (*do_cancel)(struct fscache_operation *))
+ atomic_t *stat_object_dead)
{
int ret;
@@ -359,7 +368,7 @@
fscache_stat(stat_op_waits);
if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
TASK_INTERRUPTIBLE) != 0) {
- ret = fscache_cancel_op(op, do_cancel);
+ ret = fscache_cancel_op(op, false);
if (ret == 0)
return -ERESTARTSYS;
@@ -377,11 +386,13 @@
_leave(" = -ENOBUFS [cancelled]");
return -ENOBUFS;
}
- if (unlikely(fscache_object_is_dead(object))) {
- pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->state);
- fscache_cancel_op(op, do_cancel);
+ if (unlikely(fscache_object_is_dying(object) ||
+ fscache_cache_is_broken(object))) {
+ enum fscache_operation_state state = op->state;
+ fscache_cancel_op(op, true);
if (stat_object_dead)
fscache_stat(stat_object_dead);
+ _leave(" = -ENOBUFS [obj dead %d]", state);
return -ENOBUFS;
}
return 0;
@@ -453,17 +464,12 @@
fscache_stat(&fscache_n_retrieval_ops);
- /* pin the netfs read context in case we need to do the actual netfs
- * read because we've encountered a cache read failure */
- fscache_get_context(object->cookie, op->context);
-
/* we wait for the operation to become active, and then process it
* *here*, in this thread, and not in the thread pool */
ret = fscache_wait_for_operation_activation(
object, &op->op,
__fscache_stat(&fscache_n_retrieval_op_waits),
- __fscache_stat(&fscache_n_retrievals_object_dead),
- fscache_do_cancel_retrieval);
+ __fscache_stat(&fscache_n_retrievals_object_dead));
if (ret < 0)
goto error;
@@ -503,7 +509,7 @@
spin_unlock(&cookie->lock);
if (wake_cookie)
__fscache_wake_unused_cookie(cookie);
- kfree(op);
+ fscache_put_retrieval(op);
nobufs:
fscache_stat(&fscache_n_retrievals_nobufs);
_leave(" = -ENOBUFS");
@@ -584,17 +590,12 @@
fscache_stat(&fscache_n_retrieval_ops);
- /* pin the netfs read context in case we need to do the actual netfs
- * read because we've encountered a cache read failure */
- fscache_get_context(object->cookie, op->context);
-
/* we wait for the operation to become active, and then process it
* *here*, in this thread, and not in the thread pool */
ret = fscache_wait_for_operation_activation(
object, &op->op,
__fscache_stat(&fscache_n_retrieval_op_waits),
- __fscache_stat(&fscache_n_retrievals_object_dead),
- fscache_do_cancel_retrieval);
+ __fscache_stat(&fscache_n_retrievals_object_dead));
if (ret < 0)
goto error;
@@ -632,7 +633,7 @@
wake_cookie = __fscache_unuse_cookie(cookie);
nobufs_unlock:
spin_unlock(&cookie->lock);
- kfree(op);
+ fscache_put_retrieval(op);
if (wake_cookie)
__fscache_wake_unused_cookie(cookie);
nobufs:
@@ -700,8 +701,7 @@
ret = fscache_wait_for_operation_activation(
object, &op->op,
__fscache_stat(&fscache_n_alloc_op_waits),
- __fscache_stat(&fscache_n_allocs_object_dead),
- fscache_do_cancel_retrieval);
+ __fscache_stat(&fscache_n_allocs_object_dead));
if (ret < 0)
goto error;
@@ -726,7 +726,7 @@
wake_cookie = __fscache_unuse_cookie(cookie);
nobufs_unlock:
spin_unlock(&cookie->lock);
- kfree(op);
+ fscache_put_retrieval(op);
if (wake_cookie)
__fscache_wake_unused_cookie(cookie);
nobufs:
@@ -944,7 +944,7 @@
if (!op)
goto nomem;
- fscache_operation_init(&op->op, fscache_write_op,
+ fscache_operation_init(&op->op, fscache_write_op, NULL,
fscache_release_write_op);
op->op.flags = FSCACHE_OP_ASYNC |
(1 << FSCACHE_OP_WAITING) |
@@ -1016,7 +1016,7 @@
spin_unlock(&object->lock);
spin_unlock(&cookie->lock);
radix_tree_preload_end();
- kfree(op);
+ fscache_put_operation(&op->op);
fscache_stat(&fscache_n_stores_ok);
_leave(" = 0");
return 0;
@@ -1036,7 +1036,7 @@
nobufs:
spin_unlock(&cookie->lock);
radix_tree_preload_end();
- kfree(op);
+ fscache_put_operation(&op->op);
if (wake_cookie)
__fscache_wake_unused_cookie(cookie);
fscache_stat(&fscache_n_stores_nobufs);
@@ -1044,7 +1044,7 @@
return -ENOBUFS;
nomem_free:
- kfree(op);
+ fscache_put_operation(&op->op);
nomem:
fscache_stat(&fscache_n_stores_oom);
_leave(" = -ENOMEM");
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 40d13c7..7cfa0aa 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -23,6 +23,7 @@
atomic_t fscache_n_op_enqueue;
atomic_t fscache_n_op_requeue;
atomic_t fscache_n_op_deferred_release;
+atomic_t fscache_n_op_initialised;
atomic_t fscache_n_op_release;
atomic_t fscache_n_op_gc;
atomic_t fscache_n_op_cancelled;
@@ -130,6 +131,11 @@
atomic_t fscache_n_cop_uncache_page;
atomic_t fscache_n_cop_dissociate_pages;
+atomic_t fscache_n_cache_no_space_reject;
+atomic_t fscache_n_cache_stale_objects;
+atomic_t fscache_n_cache_retired_objects;
+atomic_t fscache_n_cache_culled_objects;
+
/*
* display the general statistics
*/
@@ -246,7 +252,8 @@
atomic_read(&fscache_n_op_enqueue),
atomic_read(&fscache_n_op_cancelled),
atomic_read(&fscache_n_op_rejected));
- seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n",
+ seq_printf(m, "Ops : ini=%u dfr=%u rel=%u gc=%u\n",
+ atomic_read(&fscache_n_op_initialised),
atomic_read(&fscache_n_op_deferred_release),
atomic_read(&fscache_n_op_release),
atomic_read(&fscache_n_op_gc));
@@ -271,6 +278,11 @@
atomic_read(&fscache_n_cop_write_page),
atomic_read(&fscache_n_cop_uncache_page),
atomic_read(&fscache_n_cop_dissociate_pages));
+ seq_printf(m, "CacheEv: nsp=%d stl=%d rtr=%d cul=%d\n",
+ atomic_read(&fscache_n_cache_no_space_reject),
+ atomic_read(&fscache_n_cache_stale_objects),
+ atomic_read(&fscache_n_cache_retired_objects),
+ atomic_read(&fscache_n_cache_culled_objects));
return 0;
}
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index e5bbf74..eae2c11 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -489,6 +489,7 @@
*/
static int cuse_channel_open(struct inode *inode, struct file *file)
{
+ struct fuse_dev *fud;
struct cuse_conn *cc;
int rc;
@@ -499,17 +500,22 @@
fuse_conn_init(&cc->fc);
+ fud = fuse_dev_alloc(&cc->fc);
+ if (!fud) {
+ kfree(cc);
+ return -ENOMEM;
+ }
+
INIT_LIST_HEAD(&cc->list);
cc->fc.release = cuse_fc_release;
- cc->fc.connected = 1;
cc->fc.initialized = 1;
rc = cuse_send_init(cc);
if (rc) {
- fuse_conn_put(&cc->fc);
+ fuse_dev_free(fud);
return rc;
}
- file->private_data = &cc->fc; /* channel owns base reference to cc */
+ file->private_data = fud;
return 0;
}
@@ -527,7 +533,8 @@
*/
static int cuse_channel_release(struct inode *inode, struct file *file)
{
- struct cuse_conn *cc = fc_to_cc(file->private_data);
+ struct fuse_dev *fud = file->private_data;
+ struct cuse_conn *cc = fc_to_cc(fud->fc);
int rc;
/* remove from the conntbl, no more access from this point on */
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c8b68ab..80cc1b3 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -25,13 +25,13 @@
static struct kmem_cache *fuse_req_cachep;
-static struct fuse_conn *fuse_get_conn(struct file *file)
+static struct fuse_dev *fuse_get_dev(struct file *file)
{
/*
* Lockless access is OK, because file->private data is set
* once during mount and is valid until the file is released.
*/
- return file->private_data;
+ return ACCESS_ONCE(file->private_data);
}
static void fuse_request_init(struct fuse_req *req, struct page **pages,
@@ -48,6 +48,7 @@
req->pages = pages;
req->page_descs = page_descs;
req->max_pages = npages;
+ __set_bit(FR_PENDING, &req->flags);
}
static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags)
@@ -168,6 +169,10 @@
if (!fc->connected)
goto out;
+ err = -ECONNREFUSED;
+ if (fc->conn_error)
+ goto out;
+
req = fuse_request_alloc(npages);
err = -ENOMEM;
if (!req) {
@@ -177,8 +182,10 @@
}
fuse_req_init_context(req);
- req->waiting = 1;
- req->background = for_background;
+ __set_bit(FR_WAITING, &req->flags);
+ if (for_background)
+ __set_bit(FR_BACKGROUND, &req->flags);
+
return req;
out:
@@ -268,15 +275,15 @@
req = get_reserved_req(fc, file);
fuse_req_init_context(req);
- req->waiting = 1;
- req->background = 0;
+ __set_bit(FR_WAITING, &req->flags);
+ __clear_bit(FR_BACKGROUND, &req->flags);
return req;
}
void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
{
if (atomic_dec_and_test(&req->count)) {
- if (unlikely(req->background)) {
+ if (test_bit(FR_BACKGROUND, &req->flags)) {
/*
* We get here in the unlikely case that a background
* request was allocated but not sent
@@ -287,8 +294,10 @@
spin_unlock(&fc->lock);
}
- if (req->waiting)
+ if (test_bit(FR_WAITING, &req->flags)) {
+ __clear_bit(FR_WAITING, &req->flags);
atomic_dec(&fc->num_waiting);
+ }
if (req->stolen_file)
put_reserved_req(fc, req);
@@ -309,46 +318,38 @@
return nbytes;
}
-static u64 fuse_get_unique(struct fuse_conn *fc)
+static u64 fuse_get_unique(struct fuse_iqueue *fiq)
{
- fc->reqctr++;
- /* zero is special */
- if (fc->reqctr == 0)
- fc->reqctr = 1;
-
- return fc->reqctr;
+ return ++fiq->reqctr;
}
-static void queue_request(struct fuse_conn *fc, struct fuse_req *req)
+static void queue_request(struct fuse_iqueue *fiq, struct fuse_req *req)
{
req->in.h.len = sizeof(struct fuse_in_header) +
len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
- list_add_tail(&req->list, &fc->pending);
- req->state = FUSE_REQ_PENDING;
- if (!req->waiting) {
- req->waiting = 1;
- atomic_inc(&fc->num_waiting);
- }
- wake_up(&fc->waitq);
- kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+ list_add_tail(&req->list, &fiq->pending);
+ wake_up_locked(&fiq->waitq);
+ kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
}
void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
u64 nodeid, u64 nlookup)
{
+ struct fuse_iqueue *fiq = &fc->iq;
+
forget->forget_one.nodeid = nodeid;
forget->forget_one.nlookup = nlookup;
- spin_lock(&fc->lock);
- if (fc->connected) {
- fc->forget_list_tail->next = forget;
- fc->forget_list_tail = forget;
- wake_up(&fc->waitq);
- kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+ spin_lock(&fiq->waitq.lock);
+ if (fiq->connected) {
+ fiq->forget_list_tail->next = forget;
+ fiq->forget_list_tail = forget;
+ wake_up_locked(&fiq->waitq);
+ kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
} else {
kfree(forget);
}
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
}
static void flush_bg_queue(struct fuse_conn *fc)
@@ -356,12 +357,15 @@
while (fc->active_background < fc->max_background &&
!list_empty(&fc->bg_queue)) {
struct fuse_req *req;
+ struct fuse_iqueue *fiq = &fc->iq;
req = list_entry(fc->bg_queue.next, struct fuse_req, list);
list_del(&req->list);
fc->active_background++;
- req->in.h.unique = fuse_get_unique(fc);
- queue_request(fc, req);
+ spin_lock(&fiq->waitq.lock);
+ req->in.h.unique = fuse_get_unique(fiq);
+ queue_request(fiq, req);
+ spin_unlock(&fiq->waitq.lock);
}
}
@@ -372,20 +376,22 @@
* was closed. The requester thread is woken up (if still waiting),
* the 'end' callback is called if given, else the reference to the
* request is released
- *
- * Called with fc->lock, unlocks it
*/
static void request_end(struct fuse_conn *fc, struct fuse_req *req)
-__releases(fc->lock)
{
- void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
- req->end = NULL;
- list_del(&req->list);
- list_del(&req->intr_entry);
- req->state = FUSE_REQ_FINISHED;
- if (req->background) {
- req->background = 0;
+ struct fuse_iqueue *fiq = &fc->iq;
+ if (test_and_set_bit(FR_FINISHED, &req->flags))
+ return;
+
+ spin_lock(&fiq->waitq.lock);
+ list_del_init(&req->intr_entry);
+ spin_unlock(&fiq->waitq.lock);
+ WARN_ON(test_bit(FR_PENDING, &req->flags));
+ WARN_ON(test_bit(FR_SENT, &req->flags));
+ if (test_bit(FR_BACKGROUND, &req->flags)) {
+ spin_lock(&fc->lock);
+ clear_bit(FR_BACKGROUND, &req->flags);
if (fc->num_background == fc->max_background)
fc->blocked = 0;
@@ -401,122 +407,105 @@
fc->num_background--;
fc->active_background--;
flush_bg_queue(fc);
+ spin_unlock(&fc->lock);
}
- spin_unlock(&fc->lock);
wake_up(&req->waitq);
- if (end)
- end(fc, req);
+ if (req->end)
+ req->end(fc, req);
fuse_put_request(fc, req);
}
-static void wait_answer_interruptible(struct fuse_conn *fc,
- struct fuse_req *req)
-__releases(fc->lock)
-__acquires(fc->lock)
+static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
{
- if (signal_pending(current))
- return;
-
- spin_unlock(&fc->lock);
- wait_event_interruptible(req->waitq, req->state == FUSE_REQ_FINISHED);
- spin_lock(&fc->lock);
-}
-
-static void queue_interrupt(struct fuse_conn *fc, struct fuse_req *req)
-{
- list_add_tail(&req->intr_entry, &fc->interrupts);
- wake_up(&fc->waitq);
- kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+ spin_lock(&fiq->waitq.lock);
+ if (list_empty(&req->intr_entry)) {
+ list_add_tail(&req->intr_entry, &fiq->interrupts);
+ wake_up_locked(&fiq->waitq);
+ }
+ spin_unlock(&fiq->waitq.lock);
+ kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
}
static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
-__releases(fc->lock)
-__acquires(fc->lock)
{
+ struct fuse_iqueue *fiq = &fc->iq;
+ int err;
+
if (!fc->no_interrupt) {
/* Any signal may interrupt this */
- wait_answer_interruptible(fc, req);
-
- if (req->aborted)
- goto aborted;
- if (req->state == FUSE_REQ_FINISHED)
+ err = wait_event_interruptible(req->waitq,
+ test_bit(FR_FINISHED, &req->flags));
+ if (!err)
return;
- req->interrupted = 1;
- if (req->state == FUSE_REQ_SENT)
- queue_interrupt(fc, req);
+ set_bit(FR_INTERRUPTED, &req->flags);
+ /* matches barrier in fuse_dev_do_read() */
+ smp_mb__after_atomic();
+ if (test_bit(FR_SENT, &req->flags))
+ queue_interrupt(fiq, req);
}
- if (!req->force) {
+ if (!test_bit(FR_FORCE, &req->flags)) {
sigset_t oldset;
/* Only fatal signals may interrupt this */
block_sigs(&oldset);
- wait_answer_interruptible(fc, req);
+ err = wait_event_interruptible(req->waitq,
+ test_bit(FR_FINISHED, &req->flags));
restore_sigs(&oldset);
- if (req->aborted)
- goto aborted;
- if (req->state == FUSE_REQ_FINISHED)
+ if (!err)
return;
+ spin_lock(&fiq->waitq.lock);
/* Request is not yet in userspace, bail out */
- if (req->state == FUSE_REQ_PENDING) {
+ if (test_bit(FR_PENDING, &req->flags)) {
list_del(&req->list);
+ spin_unlock(&fiq->waitq.lock);
__fuse_put_request(req);
req->out.h.error = -EINTR;
return;
}
+ spin_unlock(&fiq->waitq.lock);
}
/*
* Either request is already in userspace, or it was forced.
* Wait it out.
*/
- spin_unlock(&fc->lock);
- wait_event(req->waitq, req->state == FUSE_REQ_FINISHED);
- spin_lock(&fc->lock);
-
- if (!req->aborted)
- return;
-
- aborted:
- BUG_ON(req->state != FUSE_REQ_FINISHED);
- if (req->locked) {
- /* This is uninterruptible sleep, because data is
- being copied to/from the buffers of req. During
- locked state, there mustn't be any filesystem
- operation (e.g. page fault), since that could lead
- to deadlock */
- spin_unlock(&fc->lock);
- wait_event(req->waitq, !req->locked);
- spin_lock(&fc->lock);
- }
+ wait_event(req->waitq, test_bit(FR_FINISHED, &req->flags));
}
static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
{
- BUG_ON(req->background);
- spin_lock(&fc->lock);
- if (!fc->connected)
+ struct fuse_iqueue *fiq = &fc->iq;
+
+ BUG_ON(test_bit(FR_BACKGROUND, &req->flags));
+ spin_lock(&fiq->waitq.lock);
+ if (!fiq->connected) {
+ spin_unlock(&fiq->waitq.lock);
req->out.h.error = -ENOTCONN;
- else if (fc->conn_error)
- req->out.h.error = -ECONNREFUSED;
- else {
- req->in.h.unique = fuse_get_unique(fc);
- queue_request(fc, req);
+ } else {
+ req->in.h.unique = fuse_get_unique(fiq);
+ queue_request(fiq, req);
/* acquire extra reference, since request is still needed
after request_end() */
__fuse_get_request(req);
+ spin_unlock(&fiq->waitq.lock);
request_wait_answer(fc, req);
+ /* Pairs with smp_wmb() in request_end() */
+ smp_rmb();
}
- spin_unlock(&fc->lock);
}
void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
{
- req->isreply = 1;
+ __set_bit(FR_ISREPLY, &req->flags);
+ if (!test_bit(FR_WAITING, &req->flags)) {
+ __set_bit(FR_WAITING, &req->flags);
+ atomic_inc(&fc->num_waiting);
+ }
__fuse_request_send(fc, req);
}
EXPORT_SYMBOL_GPL(fuse_request_send);
@@ -586,10 +575,20 @@
return ret;
}
-static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
- struct fuse_req *req)
+/*
+ * Called under fc->lock
+ *
+ * fc->connected must have been checked previously
+ */
+void fuse_request_send_background_locked(struct fuse_conn *fc,
+ struct fuse_req *req)
{
- BUG_ON(!req->background);
+ BUG_ON(!test_bit(FR_BACKGROUND, &req->flags));
+ if (!test_bit(FR_WAITING, &req->flags)) {
+ __set_bit(FR_WAITING, &req->flags);
+ atomic_inc(&fc->num_waiting);
+ }
+ __set_bit(FR_ISREPLY, &req->flags);
fc->num_background++;
if (fc->num_background == fc->max_background)
fc->blocked = 1;
@@ -602,22 +601,19 @@
flush_bg_queue(fc);
}
-static void fuse_request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
-{
- spin_lock(&fc->lock);
- if (fc->connected) {
- fuse_request_send_nowait_locked(fc, req);
- spin_unlock(&fc->lock);
- } else {
- req->out.h.error = -ENOTCONN;
- request_end(fc, req);
- }
-}
-
void fuse_request_send_background(struct fuse_conn *fc, struct fuse_req *req)
{
- req->isreply = 1;
- fuse_request_send_nowait(fc, req);
+ BUG_ON(!req->end);
+ spin_lock(&fc->lock);
+ if (fc->connected) {
+ fuse_request_send_background_locked(fc, req);
+ spin_unlock(&fc->lock);
+ } else {
+ spin_unlock(&fc->lock);
+ req->out.h.error = -ENOTCONN;
+ req->end(fc, req);
+ fuse_put_request(fc, req);
+ }
}
EXPORT_SYMBOL_GPL(fuse_request_send_background);
@@ -625,31 +621,20 @@
struct fuse_req *req, u64 unique)
{
int err = -ENODEV;
+ struct fuse_iqueue *fiq = &fc->iq;
- req->isreply = 0;
+ __clear_bit(FR_ISREPLY, &req->flags);
req->in.h.unique = unique;
- spin_lock(&fc->lock);
- if (fc->connected) {
- queue_request(fc, req);
+ spin_lock(&fiq->waitq.lock);
+ if (fiq->connected) {
+ queue_request(fiq, req);
err = 0;
}
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
return err;
}
-/*
- * Called under fc->lock
- *
- * fc->connected must have been checked previously
- */
-void fuse_request_send_background_locked(struct fuse_conn *fc,
- struct fuse_req *req)
-{
- req->isreply = 1;
- fuse_request_send_nowait_locked(fc, req);
-}
-
void fuse_force_forget(struct file *file, u64 nodeid)
{
struct inode *inode = file_inode(file);
@@ -665,7 +650,7 @@
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
- req->isreply = 0;
+ __clear_bit(FR_ISREPLY, &req->flags);
__fuse_request_send(fc, req);
/* ignore errors */
fuse_put_request(fc, req);
@@ -676,38 +661,39 @@
* anything that could cause a page-fault. If the request was already
* aborted bail out.
*/
-static int lock_request(struct fuse_conn *fc, struct fuse_req *req)
+static int lock_request(struct fuse_req *req)
{
int err = 0;
if (req) {
- spin_lock(&fc->lock);
- if (req->aborted)
+ spin_lock(&req->waitq.lock);
+ if (test_bit(FR_ABORTED, &req->flags))
err = -ENOENT;
else
- req->locked = 1;
- spin_unlock(&fc->lock);
+ set_bit(FR_LOCKED, &req->flags);
+ spin_unlock(&req->waitq.lock);
}
return err;
}
/*
- * Unlock request. If it was aborted during being locked, the
- * requester thread is currently waiting for it to be unlocked, so
- * wake it up.
+ * Unlock request. If it was aborted while locked, caller is responsible
+ * for unlocking and ending the request.
*/
-static void unlock_request(struct fuse_conn *fc, struct fuse_req *req)
+static int unlock_request(struct fuse_req *req)
{
+ int err = 0;
if (req) {
- spin_lock(&fc->lock);
- req->locked = 0;
- if (req->aborted)
- wake_up(&req->waitq);
- spin_unlock(&fc->lock);
+ spin_lock(&req->waitq.lock);
+ if (test_bit(FR_ABORTED, &req->flags))
+ err = -ENOENT;
+ else
+ clear_bit(FR_LOCKED, &req->flags);
+ spin_unlock(&req->waitq.lock);
}
+ return err;
}
struct fuse_copy_state {
- struct fuse_conn *fc;
int write;
struct fuse_req *req;
struct iov_iter *iter;
@@ -721,13 +707,10 @@
unsigned move_pages:1;
};
-static void fuse_copy_init(struct fuse_copy_state *cs,
- struct fuse_conn *fc,
- int write,
+static void fuse_copy_init(struct fuse_copy_state *cs, int write,
struct iov_iter *iter)
{
memset(cs, 0, sizeof(*cs));
- cs->fc = fc;
cs->write = write;
cs->iter = iter;
}
@@ -760,7 +743,10 @@
struct page *page;
int err;
- unlock_request(cs->fc, cs->req);
+ err = unlock_request(cs->req);
+ if (err)
+ return err;
+
fuse_copy_finish(cs);
if (cs->pipebufs) {
struct pipe_buffer *buf = cs->pipebufs;
@@ -809,7 +795,7 @@
iov_iter_advance(cs->iter, err);
}
- return lock_request(cs->fc, cs->req);
+ return lock_request(cs->req);
}
/* Do as much copy to/from userspace buffer as we can */
@@ -860,7 +846,10 @@
struct page *newpage;
struct pipe_buffer *buf = cs->pipebufs;
- unlock_request(cs->fc, cs->req);
+ err = unlock_request(cs->req);
+ if (err)
+ return err;
+
fuse_copy_finish(cs);
err = buf->ops->confirm(cs->pipe, buf);
@@ -914,12 +903,12 @@
lru_cache_add_file(newpage);
err = 0;
- spin_lock(&cs->fc->lock);
- if (cs->req->aborted)
+ spin_lock(&cs->req->waitq.lock);
+ if (test_bit(FR_ABORTED, &cs->req->flags))
err = -ENOENT;
else
*pagep = newpage;
- spin_unlock(&cs->fc->lock);
+ spin_unlock(&cs->req->waitq.lock);
if (err) {
unlock_page(newpage);
@@ -939,7 +928,7 @@
cs->pg = buf->page;
cs->offset = buf->offset;
- err = lock_request(cs->fc, cs->req);
+ err = lock_request(cs->req);
if (err)
return err;
@@ -950,11 +939,15 @@
unsigned offset, unsigned count)
{
struct pipe_buffer *buf;
+ int err;
if (cs->nr_segs == cs->pipe->buffers)
return -EIO;
- unlock_request(cs->fc, cs->req);
+ err = unlock_request(cs->req);
+ if (err)
+ return err;
+
fuse_copy_finish(cs);
buf = cs->pipebufs;
@@ -1065,36 +1058,15 @@
return err;
}
-static int forget_pending(struct fuse_conn *fc)
+static int forget_pending(struct fuse_iqueue *fiq)
{
- return fc->forget_list_head.next != NULL;
+ return fiq->forget_list_head.next != NULL;
}
-static int request_pending(struct fuse_conn *fc)
+static int request_pending(struct fuse_iqueue *fiq)
{
- return !list_empty(&fc->pending) || !list_empty(&fc->interrupts) ||
- forget_pending(fc);
-}
-
-/* Wait until a request is available on the pending list */
-static void request_wait(struct fuse_conn *fc)
-__releases(fc->lock)
-__acquires(fc->lock)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- add_wait_queue_exclusive(&fc->waitq, &wait);
- while (fc->connected && !request_pending(fc)) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (signal_pending(current))
- break;
-
- spin_unlock(&fc->lock);
- schedule();
- spin_lock(&fc->lock);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&fc->waitq, &wait);
+ return !list_empty(&fiq->pending) || !list_empty(&fiq->interrupts) ||
+ forget_pending(fiq);
}
/*
@@ -1103,11 +1075,12 @@
* Unlike other requests this is assembled on demand, without a need
* to allocate a separate fuse_req structure.
*
- * Called with fc->lock held, releases it
+ * Called with fiq->waitq.lock held, releases it
*/
-static int fuse_read_interrupt(struct fuse_conn *fc, struct fuse_copy_state *cs,
+static int fuse_read_interrupt(struct fuse_iqueue *fiq,
+ struct fuse_copy_state *cs,
size_t nbytes, struct fuse_req *req)
-__releases(fc->lock)
+__releases(fiq->waitq.lock)
{
struct fuse_in_header ih;
struct fuse_interrupt_in arg;
@@ -1115,7 +1088,7 @@
int err;
list_del_init(&req->intr_entry);
- req->intr_unique = fuse_get_unique(fc);
+ req->intr_unique = fuse_get_unique(fiq);
memset(&ih, 0, sizeof(ih));
memset(&arg, 0, sizeof(arg));
ih.len = reqsize;
@@ -1123,7 +1096,7 @@
ih.unique = req->intr_unique;
arg.unique = req->in.h.unique;
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
if (nbytes < reqsize)
return -EINVAL;
@@ -1135,21 +1108,21 @@
return err ? err : reqsize;
}
-static struct fuse_forget_link *dequeue_forget(struct fuse_conn *fc,
+static struct fuse_forget_link *dequeue_forget(struct fuse_iqueue *fiq,
unsigned max,
unsigned *countp)
{
- struct fuse_forget_link *head = fc->forget_list_head.next;
+ struct fuse_forget_link *head = fiq->forget_list_head.next;
struct fuse_forget_link **newhead = &head;
unsigned count;
for (count = 0; *newhead != NULL && count < max; count++)
newhead = &(*newhead)->next;
- fc->forget_list_head.next = *newhead;
+ fiq->forget_list_head.next = *newhead;
*newhead = NULL;
- if (fc->forget_list_head.next == NULL)
- fc->forget_list_tail = &fc->forget_list_head;
+ if (fiq->forget_list_head.next == NULL)
+ fiq->forget_list_tail = &fiq->forget_list_head;
if (countp != NULL)
*countp = count;
@@ -1157,24 +1130,24 @@
return head;
}
-static int fuse_read_single_forget(struct fuse_conn *fc,
+static int fuse_read_single_forget(struct fuse_iqueue *fiq,
struct fuse_copy_state *cs,
size_t nbytes)
-__releases(fc->lock)
+__releases(fiq->waitq.lock)
{
int err;
- struct fuse_forget_link *forget = dequeue_forget(fc, 1, NULL);
+ struct fuse_forget_link *forget = dequeue_forget(fiq, 1, NULL);
struct fuse_forget_in arg = {
.nlookup = forget->forget_one.nlookup,
};
struct fuse_in_header ih = {
.opcode = FUSE_FORGET,
.nodeid = forget->forget_one.nodeid,
- .unique = fuse_get_unique(fc),
+ .unique = fuse_get_unique(fiq),
.len = sizeof(ih) + sizeof(arg),
};
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
kfree(forget);
if (nbytes < ih.len)
return -EINVAL;
@@ -1190,9 +1163,9 @@
return ih.len;
}
-static int fuse_read_batch_forget(struct fuse_conn *fc,
+static int fuse_read_batch_forget(struct fuse_iqueue *fiq,
struct fuse_copy_state *cs, size_t nbytes)
-__releases(fc->lock)
+__releases(fiq->waitq.lock)
{
int err;
unsigned max_forgets;
@@ -1201,18 +1174,18 @@
struct fuse_batch_forget_in arg = { .count = 0 };
struct fuse_in_header ih = {
.opcode = FUSE_BATCH_FORGET,
- .unique = fuse_get_unique(fc),
+ .unique = fuse_get_unique(fiq),
.len = sizeof(ih) + sizeof(arg),
};
if (nbytes < ih.len) {
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
return -EINVAL;
}
max_forgets = (nbytes - ih.len) / sizeof(struct fuse_forget_one);
- head = dequeue_forget(fc, max_forgets, &count);
- spin_unlock(&fc->lock);
+ head = dequeue_forget(fiq, max_forgets, &count);
+ spin_unlock(&fiq->waitq.lock);
arg.count = count;
ih.len += count * sizeof(struct fuse_forget_one);
@@ -1239,14 +1212,15 @@
return ih.len;
}
-static int fuse_read_forget(struct fuse_conn *fc, struct fuse_copy_state *cs,
+static int fuse_read_forget(struct fuse_conn *fc, struct fuse_iqueue *fiq,
+ struct fuse_copy_state *cs,
size_t nbytes)
-__releases(fc->lock)
+__releases(fiq->waitq.lock)
{
- if (fc->minor < 16 || fc->forget_list_head.next->next == NULL)
- return fuse_read_single_forget(fc, cs, nbytes);
+ if (fc->minor < 16 || fiq->forget_list_head.next->next == NULL)
+ return fuse_read_single_forget(fiq, cs, nbytes);
else
- return fuse_read_batch_forget(fc, cs, nbytes);
+ return fuse_read_batch_forget(fiq, cs, nbytes);
}
/*
@@ -1258,46 +1232,51 @@
* request_end(). Otherwise add it to the processing list, and set
* the 'sent' flag.
*/
-static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
+static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
struct fuse_copy_state *cs, size_t nbytes)
{
- int err;
+ ssize_t err;
+ struct fuse_conn *fc = fud->fc;
+ struct fuse_iqueue *fiq = &fc->iq;
+ struct fuse_pqueue *fpq = &fud->pq;
struct fuse_req *req;
struct fuse_in *in;
unsigned reqsize;
restart:
- spin_lock(&fc->lock);
+ spin_lock(&fiq->waitq.lock);
err = -EAGAIN;
- if ((file->f_flags & O_NONBLOCK) && fc->connected &&
- !request_pending(fc))
+ if ((file->f_flags & O_NONBLOCK) && fiq->connected &&
+ !request_pending(fiq))
goto err_unlock;
- request_wait(fc);
+ err = wait_event_interruptible_exclusive_locked(fiq->waitq,
+ !fiq->connected || request_pending(fiq));
+ if (err)
+ goto err_unlock;
+
err = -ENODEV;
- if (!fc->connected)
- goto err_unlock;
- err = -ERESTARTSYS;
- if (!request_pending(fc))
+ if (!fiq->connected)
goto err_unlock;
- if (!list_empty(&fc->interrupts)) {
- req = list_entry(fc->interrupts.next, struct fuse_req,
+ if (!list_empty(&fiq->interrupts)) {
+ req = list_entry(fiq->interrupts.next, struct fuse_req,
intr_entry);
- return fuse_read_interrupt(fc, cs, nbytes, req);
+ return fuse_read_interrupt(fiq, cs, nbytes, req);
}
- if (forget_pending(fc)) {
- if (list_empty(&fc->pending) || fc->forget_batch-- > 0)
- return fuse_read_forget(fc, cs, nbytes);
+ if (forget_pending(fiq)) {
+ if (list_empty(&fiq->pending) || fiq->forget_batch-- > 0)
+ return fuse_read_forget(fc, fiq, cs, nbytes);
- if (fc->forget_batch <= -8)
- fc->forget_batch = 16;
+ if (fiq->forget_batch <= -8)
+ fiq->forget_batch = 16;
}
- req = list_entry(fc->pending.next, struct fuse_req, list);
- req->state = FUSE_REQ_READING;
- list_move(&req->list, &fc->io);
+ req = list_entry(fiq->pending.next, struct fuse_req, list);
+ clear_bit(FR_PENDING, &req->flags);
+ list_del_init(&req->list);
+ spin_unlock(&fiq->waitq.lock);
in = &req->in;
reqsize = in->h.len;
@@ -1310,37 +1289,48 @@
request_end(fc, req);
goto restart;
}
- spin_unlock(&fc->lock);
+ spin_lock(&fpq->lock);
+ list_add(&req->list, &fpq->io);
+ spin_unlock(&fpq->lock);
cs->req = req;
err = fuse_copy_one(cs, &in->h, sizeof(in->h));
if (!err)
err = fuse_copy_args(cs, in->numargs, in->argpages,
(struct fuse_arg *) in->args, 0);
fuse_copy_finish(cs);
- spin_lock(&fc->lock);
- req->locked = 0;
- if (req->aborted) {
- request_end(fc, req);
- return -ENODEV;
+ spin_lock(&fpq->lock);
+ clear_bit(FR_LOCKED, &req->flags);
+ if (!fpq->connected) {
+ err = -ENODEV;
+ goto out_end;
}
if (err) {
req->out.h.error = -EIO;
- request_end(fc, req);
- return err;
+ goto out_end;
}
- if (!req->isreply)
- request_end(fc, req);
- else {
- req->state = FUSE_REQ_SENT;
- list_move_tail(&req->list, &fc->processing);
- if (req->interrupted)
- queue_interrupt(fc, req);
- spin_unlock(&fc->lock);
+ if (!test_bit(FR_ISREPLY, &req->flags)) {
+ err = reqsize;
+ goto out_end;
}
+ list_move_tail(&req->list, &fpq->processing);
+ spin_unlock(&fpq->lock);
+ set_bit(FR_SENT, &req->flags);
+ /* matches barrier in request_wait_answer() */
+ smp_mb__after_atomic();
+ if (test_bit(FR_INTERRUPTED, &req->flags))
+ queue_interrupt(fiq, req);
+
return reqsize;
+out_end:
+ if (!test_bit(FR_PRIVATE, &req->flags))
+ list_del_init(&req->list);
+ spin_unlock(&fpq->lock);
+ request_end(fc, req);
+ return err;
+
err_unlock:
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
return err;
}
@@ -1359,16 +1349,17 @@
{
struct fuse_copy_state cs;
struct file *file = iocb->ki_filp;
- struct fuse_conn *fc = fuse_get_conn(file);
- if (!fc)
+ struct fuse_dev *fud = fuse_get_dev(file);
+
+ if (!fud)
return -EPERM;
if (!iter_is_iovec(to))
return -EINVAL;
- fuse_copy_init(&cs, fc, 1, to);
+ fuse_copy_init(&cs, 1, to);
- return fuse_dev_do_read(fc, file, &cs, iov_iter_count(to));
+ return fuse_dev_do_read(fud, file, &cs, iov_iter_count(to));
}
static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
@@ -1380,18 +1371,19 @@
int do_wakeup = 0;
struct pipe_buffer *bufs;
struct fuse_copy_state cs;
- struct fuse_conn *fc = fuse_get_conn(in);
- if (!fc)
+ struct fuse_dev *fud = fuse_get_dev(in);
+
+ if (!fud)
return -EPERM;
bufs = kmalloc(pipe->buffers * sizeof(struct pipe_buffer), GFP_KERNEL);
if (!bufs)
return -ENOMEM;
- fuse_copy_init(&cs, fc, 1, NULL);
+ fuse_copy_init(&cs, 1, NULL);
cs.pipebufs = bufs;
cs.pipe = pipe;
- ret = fuse_dev_do_read(fc, in, &cs, len);
+ ret = fuse_dev_do_read(fud, in, &cs, len);
if (ret < 0)
goto out;
@@ -1830,11 +1822,11 @@
}
/* Look up request on processing list by unique ID */
-static struct fuse_req *request_find(struct fuse_conn *fc, u64 unique)
+static struct fuse_req *request_find(struct fuse_pqueue *fpq, u64 unique)
{
struct fuse_req *req;
- list_for_each_entry(req, &fc->processing, list) {
+ list_for_each_entry(req, &fpq->processing, list) {
if (req->in.h.unique == unique || req->intr_unique == unique)
return req;
}
@@ -1871,10 +1863,12 @@
* it from the list and copy the rest of the buffer to the request.
* The request is finished by calling request_end()
*/
-static ssize_t fuse_dev_do_write(struct fuse_conn *fc,
+static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
struct fuse_copy_state *cs, size_t nbytes)
{
int err;
+ struct fuse_conn *fc = fud->fc;
+ struct fuse_pqueue *fpq = &fud->pq;
struct fuse_req *req;
struct fuse_out_header oh;
@@ -1902,63 +1896,60 @@
if (oh.error <= -1000 || oh.error > 0)
goto err_finish;
- spin_lock(&fc->lock);
+ spin_lock(&fpq->lock);
err = -ENOENT;
- if (!fc->connected)
- goto err_unlock;
+ if (!fpq->connected)
+ goto err_unlock_pq;
- req = request_find(fc, oh.unique);
+ req = request_find(fpq, oh.unique);
if (!req)
- goto err_unlock;
+ goto err_unlock_pq;
- if (req->aborted) {
- spin_unlock(&fc->lock);
- fuse_copy_finish(cs);
- spin_lock(&fc->lock);
- request_end(fc, req);
- return -ENOENT;
- }
/* Is it an interrupt reply? */
if (req->intr_unique == oh.unique) {
+ spin_unlock(&fpq->lock);
+
err = -EINVAL;
if (nbytes != sizeof(struct fuse_out_header))
- goto err_unlock;
+ goto err_finish;
if (oh.error == -ENOSYS)
fc->no_interrupt = 1;
else if (oh.error == -EAGAIN)
- queue_interrupt(fc, req);
+ queue_interrupt(&fc->iq, req);
- spin_unlock(&fc->lock);
fuse_copy_finish(cs);
return nbytes;
}
- req->state = FUSE_REQ_WRITING;
- list_move(&req->list, &fc->io);
+ clear_bit(FR_SENT, &req->flags);
+ list_move(&req->list, &fpq->io);
req->out.h = oh;
- req->locked = 1;
+ set_bit(FR_LOCKED, &req->flags);
+ spin_unlock(&fpq->lock);
cs->req = req;
if (!req->out.page_replace)
cs->move_pages = 0;
- spin_unlock(&fc->lock);
err = copy_out_args(cs, &req->out, nbytes);
fuse_copy_finish(cs);
- spin_lock(&fc->lock);
- req->locked = 0;
- if (!err) {
- if (req->aborted)
- err = -ENOENT;
- } else if (!req->aborted)
+ spin_lock(&fpq->lock);
+ clear_bit(FR_LOCKED, &req->flags);
+ if (!fpq->connected)
+ err = -ENOENT;
+ else if (err)
req->out.h.error = -EIO;
+ if (!test_bit(FR_PRIVATE, &req->flags))
+ list_del_init(&req->list);
+ spin_unlock(&fpq->lock);
+
request_end(fc, req);
return err ? err : nbytes;
- err_unlock:
- spin_unlock(&fc->lock);
+ err_unlock_pq:
+ spin_unlock(&fpq->lock);
err_finish:
fuse_copy_finish(cs);
return err;
@@ -1967,16 +1958,17 @@
static ssize_t fuse_dev_write(struct kiocb *iocb, struct iov_iter *from)
{
struct fuse_copy_state cs;
- struct fuse_conn *fc = fuse_get_conn(iocb->ki_filp);
- if (!fc)
+ struct fuse_dev *fud = fuse_get_dev(iocb->ki_filp);
+
+ if (!fud)
return -EPERM;
if (!iter_is_iovec(from))
return -EINVAL;
- fuse_copy_init(&cs, fc, 0, from);
+ fuse_copy_init(&cs, 0, from);
- return fuse_dev_do_write(fc, &cs, iov_iter_count(from));
+ return fuse_dev_do_write(fud, &cs, iov_iter_count(from));
}
static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
@@ -1987,12 +1979,12 @@
unsigned idx;
struct pipe_buffer *bufs;
struct fuse_copy_state cs;
- struct fuse_conn *fc;
+ struct fuse_dev *fud;
size_t rem;
ssize_t ret;
- fc = fuse_get_conn(out);
- if (!fc)
+ fud = fuse_get_dev(out);
+ if (!fud)
return -EPERM;
bufs = kmalloc(pipe->buffers * sizeof(struct pipe_buffer), GFP_KERNEL);
@@ -2039,7 +2031,7 @@
}
pipe_unlock(pipe);
- fuse_copy_init(&cs, fc, 0, NULL);
+ fuse_copy_init(&cs, 0, NULL);
cs.pipebufs = bufs;
cs.nr_segs = nbuf;
cs.pipe = pipe;
@@ -2047,7 +2039,7 @@
if (flags & SPLICE_F_MOVE)
cs.move_pages = 1;
- ret = fuse_dev_do_write(fc, &cs, len);
+ ret = fuse_dev_do_write(fud, &cs, len);
for (idx = 0; idx < nbuf; idx++) {
struct pipe_buffer *buf = &bufs[idx];
@@ -2061,18 +2053,21 @@
static unsigned fuse_dev_poll(struct file *file, poll_table *wait)
{
unsigned mask = POLLOUT | POLLWRNORM;
- struct fuse_conn *fc = fuse_get_conn(file);
- if (!fc)
+ struct fuse_iqueue *fiq;
+ struct fuse_dev *fud = fuse_get_dev(file);
+
+ if (!fud)
return POLLERR;
- poll_wait(file, &fc->waitq, wait);
+ fiq = &fud->fc->iq;
+ poll_wait(file, &fiq->waitq, wait);
- spin_lock(&fc->lock);
- if (!fc->connected)
+ spin_lock(&fiq->waitq.lock);
+ if (!fiq->connected)
mask = POLLERR;
- else if (request_pending(fc))
+ else if (request_pending(fiq))
mask |= POLLIN | POLLRDNORM;
- spin_unlock(&fc->lock);
+ spin_unlock(&fiq->waitq.lock);
return mask;
}
@@ -2083,67 +2078,18 @@
* This function releases and reacquires fc->lock
*/
static void end_requests(struct fuse_conn *fc, struct list_head *head)
-__releases(fc->lock)
-__acquires(fc->lock)
{
while (!list_empty(head)) {
struct fuse_req *req;
req = list_entry(head->next, struct fuse_req, list);
req->out.h.error = -ECONNABORTED;
- request_end(fc, req);
- spin_lock(&fc->lock);
- }
-}
-
-/*
- * Abort requests under I/O
- *
- * The requests are set to aborted and finished, and the request
- * waiter is woken up. This will make request_wait_answer() wait
- * until the request is unlocked and then return.
- *
- * If the request is asynchronous, then the end function needs to be
- * called after waiting for the request to be unlocked (if it was
- * locked).
- */
-static void end_io_requests(struct fuse_conn *fc)
-__releases(fc->lock)
-__acquires(fc->lock)
-{
- while (!list_empty(&fc->io)) {
- struct fuse_req *req =
- list_entry(fc->io.next, struct fuse_req, list);
- void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
-
- req->aborted = 1;
- req->out.h.error = -ECONNABORTED;
- req->state = FUSE_REQ_FINISHED;
+ clear_bit(FR_PENDING, &req->flags);
+ clear_bit(FR_SENT, &req->flags);
list_del_init(&req->list);
- wake_up(&req->waitq);
- if (end) {
- req->end = NULL;
- __fuse_get_request(req);
- spin_unlock(&fc->lock);
- wait_event(req->waitq, !req->locked);
- end(fc, req);
- fuse_put_request(fc, req);
- spin_lock(&fc->lock);
- }
+ request_end(fc, req);
}
}
-static void end_queued_requests(struct fuse_conn *fc)
-__releases(fc->lock)
-__acquires(fc->lock)
-{
- fc->max_background = UINT_MAX;
- flush_bg_queue(fc);
- end_requests(fc, &fc->pending);
- end_requests(fc, &fc->processing);
- while (forget_pending(fc))
- kfree(dequeue_forget(fc, 1, NULL));
-}
-
static void end_polls(struct fuse_conn *fc)
{
struct rb_node *p;
@@ -2162,67 +2108,156 @@
/*
* Abort all requests.
*
- * Emergency exit in case of a malicious or accidental deadlock, or
- * just a hung filesystem.
+ * Emergency exit in case of a malicious or accidental deadlock, or just a hung
+ * filesystem.
*
- * The same effect is usually achievable through killing the
- * filesystem daemon and all users of the filesystem. The exception
- * is the combination of an asynchronous request and the tricky
- * deadlock (see Documentation/filesystems/fuse.txt).
+ * The same effect is usually achievable through killing the filesystem daemon
+ * and all users of the filesystem. The exception is the combination of an
+ * asynchronous request and the tricky deadlock (see
+ * Documentation/filesystems/fuse.txt).
*
- * During the aborting, progression of requests from the pending and
- * processing lists onto the io list, and progression of new requests
- * onto the pending list is prevented by req->connected being false.
- *
- * Progression of requests under I/O to the processing list is
- * prevented by the req->aborted flag being true for these requests.
- * For this reason requests on the io list must be aborted first.
+ * Aborting requests under I/O goes as follows: 1: Separate out unlocked
+ * requests, they should be finished off immediately. Locked requests will be
+ * finished after unlock; see unlock_request(). 2: Finish off the unlocked
+ * requests. It is possible that some request will finish before we can. This
+ * is OK, the request will in that case be removed from the list before we touch
+ * it.
*/
void fuse_abort_conn(struct fuse_conn *fc)
{
+ struct fuse_iqueue *fiq = &fc->iq;
+
spin_lock(&fc->lock);
if (fc->connected) {
+ struct fuse_dev *fud;
+ struct fuse_req *req, *next;
+ LIST_HEAD(to_end1);
+ LIST_HEAD(to_end2);
+
fc->connected = 0;
fc->blocked = 0;
fuse_set_initialized(fc);
- end_io_requests(fc);
- end_queued_requests(fc);
+ list_for_each_entry(fud, &fc->devices, entry) {
+ struct fuse_pqueue *fpq = &fud->pq;
+
+ spin_lock(&fpq->lock);
+ fpq->connected = 0;
+ list_for_each_entry_safe(req, next, &fpq->io, list) {
+ req->out.h.error = -ECONNABORTED;
+ spin_lock(&req->waitq.lock);
+ set_bit(FR_ABORTED, &req->flags);
+ if (!test_bit(FR_LOCKED, &req->flags)) {
+ set_bit(FR_PRIVATE, &req->flags);
+ list_move(&req->list, &to_end1);
+ }
+ spin_unlock(&req->waitq.lock);
+ }
+ list_splice_init(&fpq->processing, &to_end2);
+ spin_unlock(&fpq->lock);
+ }
+ fc->max_background = UINT_MAX;
+ flush_bg_queue(fc);
+
+ spin_lock(&fiq->waitq.lock);
+ fiq->connected = 0;
+ list_splice_init(&fiq->pending, &to_end2);
+ while (forget_pending(fiq))
+ kfree(dequeue_forget(fiq, 1, NULL));
+ wake_up_all_locked(&fiq->waitq);
+ spin_unlock(&fiq->waitq.lock);
+ kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
end_polls(fc);
- wake_up_all(&fc->waitq);
wake_up_all(&fc->blocked_waitq);
- kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+ spin_unlock(&fc->lock);
+
+ while (!list_empty(&to_end1)) {
+ req = list_first_entry(&to_end1, struct fuse_req, list);
+ __fuse_get_request(req);
+ list_del_init(&req->list);
+ request_end(fc, req);
+ }
+ end_requests(fc, &to_end2);
+ } else {
+ spin_unlock(&fc->lock);
}
- spin_unlock(&fc->lock);
}
EXPORT_SYMBOL_GPL(fuse_abort_conn);
int fuse_dev_release(struct inode *inode, struct file *file)
{
- struct fuse_conn *fc = fuse_get_conn(file);
- if (fc) {
- spin_lock(&fc->lock);
- fc->connected = 0;
- fc->blocked = 0;
- fuse_set_initialized(fc);
- end_queued_requests(fc);
- end_polls(fc);
- wake_up_all(&fc->blocked_waitq);
- spin_unlock(&fc->lock);
- fuse_conn_put(fc);
- }
+ struct fuse_dev *fud = fuse_get_dev(file);
+ if (fud) {
+ struct fuse_conn *fc = fud->fc;
+ struct fuse_pqueue *fpq = &fud->pq;
+
+ WARN_ON(!list_empty(&fpq->io));
+ end_requests(fc, &fpq->processing);
+ /* Are we the last open device? */
+ if (atomic_dec_and_test(&fc->dev_count)) {
+ WARN_ON(fc->iq.fasync != NULL);
+ fuse_abort_conn(fc);
+ }
+ fuse_dev_free(fud);
+ }
return 0;
}
EXPORT_SYMBOL_GPL(fuse_dev_release);
static int fuse_dev_fasync(int fd, struct file *file, int on)
{
- struct fuse_conn *fc = fuse_get_conn(file);
- if (!fc)
+ struct fuse_dev *fud = fuse_get_dev(file);
+
+ if (!fud)
return -EPERM;
/* No locking - fasync_helper does its own locking */
- return fasync_helper(fd, file, on, &fc->fasync);
+ return fasync_helper(fd, file, on, &fud->fc->iq.fasync);
+}
+
+static int fuse_device_clone(struct fuse_conn *fc, struct file *new)
+{
+ struct fuse_dev *fud;
+
+ if (new->private_data)
+ return -EINVAL;
+
+ fud = fuse_dev_alloc(fc);
+ if (!fud)
+ return -ENOMEM;
+
+ new->private_data = fud;
+ atomic_inc(&fc->dev_count);
+
+ return 0;
+}
+
+static long fuse_dev_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int err = -ENOTTY;
+
+ if (cmd == FUSE_DEV_IOC_CLONE) {
+ int oldfd;
+
+ err = -EFAULT;
+ if (!get_user(oldfd, (__u32 __user *) arg)) {
+ struct file *old = fget(oldfd);
+
+ err = -EINVAL;
+ if (old) {
+ struct fuse_dev *fud = fuse_get_dev(old);
+
+ if (fud) {
+ mutex_lock(&fuse_mutex);
+ err = fuse_device_clone(fud->fc, file);
+ mutex_unlock(&fuse_mutex);
+ }
+ fput(old);
+ }
+ }
+ }
+ return err;
}
const struct file_operations fuse_dev_operations = {
@@ -2236,6 +2271,8 @@
.poll = fuse_dev_poll,
.release = fuse_dev_release,
.fasync = fuse_dev_fasync,
+ .unlocked_ioctl = fuse_dev_ioctl,
+ .compat_ioctl = fuse_dev_ioctl,
};
EXPORT_SYMBOL_GPL(fuse_dev_operations);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 8c5e2fa..f523f2f 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -96,17 +96,17 @@
* Drop the release request when client does not
* implement 'open'
*/
- req->background = 0;
+ __clear_bit(FR_BACKGROUND, &req->flags);
iput(req->misc.release.inode);
fuse_put_request(ff->fc, req);
} else if (sync) {
- req->background = 0;
+ __clear_bit(FR_BACKGROUND, &req->flags);
fuse_request_send(ff->fc, req);
iput(req->misc.release.inode);
fuse_put_request(ff->fc, req);
} else {
req->end = fuse_release_end;
- req->background = 1;
+ __set_bit(FR_BACKGROUND, &req->flags);
fuse_request_send_background(ff->fc, req);
}
kfree(ff);
@@ -299,8 +299,8 @@
{
WARN_ON(atomic_read(&ff->count) > 1);
fuse_prepare_release(ff, flags, FUSE_RELEASE);
- ff->reserved_req->force = 1;
- ff->reserved_req->background = 0;
+ __set_bit(FR_FORCE, &ff->reserved_req->flags);
+ __clear_bit(FR_BACKGROUND, &ff->reserved_req->flags);
fuse_request_send(ff->fc, ff->reserved_req);
fuse_put_request(ff->fc, ff->reserved_req);
kfree(ff);
@@ -426,7 +426,7 @@
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
- req->force = 1;
+ __set_bit(FR_FORCE, &req->flags);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
@@ -1169,7 +1169,7 @@
if (err <= 0)
goto out;
- err = file_remove_suid(file);
+ err = file_remove_privs(file);
if (err)
goto out;
@@ -1611,7 +1611,8 @@
if (!req)
goto err;
- req->background = 1; /* writeback always goes to bg_queue */
+ /* writeback always goes to bg_queue */
+ __set_bit(FR_BACKGROUND, &req->flags);
tmp_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
if (!tmp_page)
goto err_free;
@@ -1742,8 +1743,7 @@
}
}
- if (old_req->num_pages == 1 && (old_req->state == FUSE_REQ_INIT ||
- old_req->state == FUSE_REQ_PENDING)) {
+ if (old_req->num_pages == 1 && test_bit(FR_PENDING, &old_req->flags)) {
struct backing_dev_info *bdi = inode_to_bdi(page->mapping->host);
copy_highpage(old_req->pages[0], page);
@@ -1830,7 +1830,7 @@
req->misc.write.in.write_flags |= FUSE_WRITE_CACHE;
req->misc.write.next = NULL;
req->in.argpages = 1;
- req->background = 1;
+ __set_bit(FR_BACKGROUND, &req->flags);
req->num_pages = 0;
req->end = fuse_writepage_end;
req->inode = inode;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 7354dc1..4051131 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -241,16 +241,6 @@
#define FUSE_ARGS(args) struct fuse_args args = {}
-/** The request state */
-enum fuse_req_state {
- FUSE_REQ_INIT = 0,
- FUSE_REQ_PENDING,
- FUSE_REQ_READING,
- FUSE_REQ_SENT,
- FUSE_REQ_WRITING,
- FUSE_REQ_FINISHED
-};
-
/** The request IO state (for asynchronous processing) */
struct fuse_io_priv {
int async;
@@ -267,7 +257,40 @@
};
/**
+ * Request flags
+ *
+ * FR_ISREPLY: set if the request has reply
+ * FR_FORCE: force sending of the request even if interrupted
+ * FR_BACKGROUND: request is sent in the background
+ * FR_WAITING: request is counted as "waiting"
+ * FR_ABORTED: the request was aborted
+ * FR_INTERRUPTED: the request has been interrupted
+ * FR_LOCKED: data is being copied to/from the request
+ * FR_PENDING: request is not yet in userspace
+ * FR_SENT: request is in userspace, waiting for an answer
+ * FR_FINISHED: request is finished
+ * FR_PRIVATE: request is on private list
+ */
+enum fuse_req_flag {
+ FR_ISREPLY,
+ FR_FORCE,
+ FR_BACKGROUND,
+ FR_WAITING,
+ FR_ABORTED,
+ FR_INTERRUPTED,
+ FR_LOCKED,
+ FR_PENDING,
+ FR_SENT,
+ FR_FINISHED,
+ FR_PRIVATE,
+};
+
+/**
* A request to the client
+ *
+ * .waitq.lock protects the following fields:
+ * - FR_ABORTED
+ * - FR_LOCKED (may also be modified under fc->lock, tested under both)
*/
struct fuse_req {
/** This can be on either pending processing or io lists in
@@ -283,35 +306,8 @@
/** Unique ID for the interrupt request */
u64 intr_unique;
- /*
- * The following bitfields are either set once before the
- * request is queued or setting/clearing them is protected by
- * fuse_conn->lock
- */
-
- /** True if the request has reply */
- unsigned isreply:1;
-
- /** Force sending of the request even if interrupted */
- unsigned force:1;
-
- /** The request was aborted */
- unsigned aborted:1;
-
- /** Request is sent in the background */
- unsigned background:1;
-
- /** The request has been interrupted */
- unsigned interrupted:1;
-
- /** Data is being copied to/from the request */
- unsigned locked:1;
-
- /** Request is counted as "waiting" */
- unsigned waiting:1;
-
- /** State of the request */
- enum fuse_req_state state;
+ /* Request flags, updated with test/set/clear_bit() */
+ unsigned long flags;
/** The request input */
struct fuse_in in;
@@ -380,6 +376,61 @@
struct file *stolen_file;
};
+struct fuse_iqueue {
+ /** Connection established */
+ unsigned connected;
+
+ /** Readers of the connection are waiting on this */
+ wait_queue_head_t waitq;
+
+ /** The next unique request id */
+ u64 reqctr;
+
+ /** The list of pending requests */
+ struct list_head pending;
+
+ /** Pending interrupts */
+ struct list_head interrupts;
+
+ /** Queue of pending forgets */
+ struct fuse_forget_link forget_list_head;
+ struct fuse_forget_link *forget_list_tail;
+
+ /** Batching of FORGET requests (positive indicates FORGET batch) */
+ int forget_batch;
+
+ /** O_ASYNC requests */
+ struct fasync_struct *fasync;
+};
+
+struct fuse_pqueue {
+ /** Connection established */
+ unsigned connected;
+
+ /** Lock protecting accessess to members of this structure */
+ spinlock_t lock;
+
+ /** The list of requests being processed */
+ struct list_head processing;
+
+ /** The list of requests under I/O */
+ struct list_head io;
+};
+
+/**
+ * Fuse device instance
+ */
+struct fuse_dev {
+ /** Fuse connection for this device */
+ struct fuse_conn *fc;
+
+ /** Processing queue */
+ struct fuse_pqueue pq;
+
+ /** list entry on fc->devices */
+ struct list_head entry;
+};
+
/**
* A Fuse connection.
*
@@ -394,6 +445,9 @@
/** Refcount */
atomic_t count;
+ /** Number of fuse_dev's */
+ atomic_t dev_count;
+
struct rcu_head rcu;
/** The user id for this mount */
@@ -411,17 +465,8 @@
/** Maximum write size */
unsigned max_write;
- /** Readers of the connection are waiting on this */
- wait_queue_head_t waitq;
-
- /** The list of pending requests */
- struct list_head pending;
-
- /** The list of requests being processed */
- struct list_head processing;
-
- /** The list of requests under I/O */
- struct list_head io;
+ /** Input queue */
+ struct fuse_iqueue iq;
/** The next unique kernel file handle */
u64 khctr;
@@ -444,16 +489,6 @@
/** The list of background requests set aside for later queuing */
struct list_head bg_queue;
- /** Pending interrupts */
- struct list_head interrupts;
-
- /** Queue of pending forgets */
- struct fuse_forget_link forget_list_head;
- struct fuse_forget_link *forget_list_tail;
-
- /** Batching of FORGET requests (positive indicates FORGET batch) */
- int forget_batch;
-
/** Flag indicating that INIT reply has been received. Allocating
* any fuse request will be suspended until the flag is set */
int initialized;
@@ -469,9 +504,6 @@
/** waitq for reserved requests */
wait_queue_head_t reserved_req_waitq;
- /** The next unique request id */
- u64 reqctr;
-
/** Connection established, cleared on umount, connection
abort and device release */
unsigned connected;
@@ -594,9 +626,6 @@
/** number of dentries used in the above array */
int ctl_ndents;
- /** O_ASYNC requests */
- struct fasync_struct *fasync;
-
/** Key for lock owner ID scrambling */
u32 scramble_key[4];
@@ -614,6 +643,9 @@
/** Read/write semaphore to hold when accessing sb. */
struct rw_semaphore killsb;
+
+ /** List of device instances belonging to this connection */
+ struct list_head devices;
};
static inline struct fuse_conn *get_fuse_conn_super(struct super_block *sb)
@@ -826,6 +858,9 @@
*/
void fuse_conn_put(struct fuse_conn *fc);
+struct fuse_dev *fuse_dev_alloc(struct fuse_conn *fc);
+void fuse_dev_free(struct fuse_dev *fud);
+
/**
* Add connection to control filesystem
*/
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 082ac1c..2913db2 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -362,8 +362,8 @@
if (req && fc->conn_init) {
fc->destroy_req = NULL;
req->in.h.opcode = FUSE_DESTROY;
- req->force = 1;
- req->background = 0;
+ __set_bit(FR_FORCE, &req->flags);
+ __clear_bit(FR_BACKGROUND, &req->flags);
fuse_request_send(fc, req);
fuse_put_request(fc, req);
}
@@ -567,30 +567,46 @@
return 0;
}
+static void fuse_iqueue_init(struct fuse_iqueue *fiq)
+{
+ memset(fiq, 0, sizeof(struct fuse_iqueue));
+ init_waitqueue_head(&fiq->waitq);
+ INIT_LIST_HEAD(&fiq->pending);
+ INIT_LIST_HEAD(&fiq->interrupts);
+ fiq->forget_list_tail = &fiq->forget_list_head;
+ fiq->connected = 1;
+}
+
+static void fuse_pqueue_init(struct fuse_pqueue *fpq)
+{
+ memset(fpq, 0, sizeof(struct fuse_pqueue));
+ spin_lock_init(&fpq->lock);
+ INIT_LIST_HEAD(&fpq->processing);
+ INIT_LIST_HEAD(&fpq->io);
+ fpq->connected = 1;
+}
+
void fuse_conn_init(struct fuse_conn *fc)
{
memset(fc, 0, sizeof(*fc));
spin_lock_init(&fc->lock);
init_rwsem(&fc->killsb);
atomic_set(&fc->count, 1);
- init_waitqueue_head(&fc->waitq);
+ atomic_set(&fc->dev_count, 1);
init_waitqueue_head(&fc->blocked_waitq);
init_waitqueue_head(&fc->reserved_req_waitq);
- INIT_LIST_HEAD(&fc->pending);
- INIT_LIST_HEAD(&fc->processing);
- INIT_LIST_HEAD(&fc->io);
- INIT_LIST_HEAD(&fc->interrupts);
+ fuse_iqueue_init(&fc->iq);
INIT_LIST_HEAD(&fc->bg_queue);
INIT_LIST_HEAD(&fc->entry);
- fc->forget_list_tail = &fc->forget_list_head;
+ INIT_LIST_HEAD(&fc->devices);
atomic_set(&fc->num_waiting, 0);
fc->max_background = FUSE_DEFAULT_MAX_BACKGROUND;
fc->congestion_threshold = FUSE_DEFAULT_CONGESTION_THRESHOLD;
fc->khctr = 0;
fc->polled_files = RB_ROOT;
- fc->reqctr = 0;
fc->blocked = 0;
fc->initialized = 0;
+ fc->connected = 1;
fc->attr_version = 1;
get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
}
@@ -930,6 +946,7 @@
static void fuse_free_conn(struct fuse_conn *fc)
{
+ WARN_ON(!list_empty(&fc->devices));
kfree_rcu(fc, rcu);
}
@@ -975,8 +992,42 @@
return 0;
}
+struct fuse_dev *fuse_dev_alloc(struct fuse_conn *fc)
+{
+ struct fuse_dev *fud;
+
+ fud = kzalloc(sizeof(struct fuse_dev), GFP_KERNEL);
+ if (fud) {
+ fud->fc = fuse_conn_get(fc);
+ fuse_pqueue_init(&fud->pq);
+
+ spin_lock(&fc->lock);
+ list_add_tail(&fud->entry, &fc->devices);
+ spin_unlock(&fc->lock);
+ }
+
+ return fud;
+}
+EXPORT_SYMBOL_GPL(fuse_dev_alloc);
+
+void fuse_dev_free(struct fuse_dev *fud)
+{
+ struct fuse_conn *fc = fud->fc;
+
+ if (fc) {
+ spin_lock(&fc->lock);
+ list_del(&fud->entry);
+ spin_unlock(&fc->lock);
+
+ fuse_conn_put(fc);
+ }
+ kfree(fud);
+}
+EXPORT_SYMBOL_GPL(fuse_dev_free);
+
static int fuse_fill_super(struct super_block *sb, void *data, int silent)
{
+ struct fuse_dev *fud;
struct fuse_conn *fc;
struct inode *root;
struct fuse_mount_data d;
@@ -1026,12 +1077,17 @@
goto err_fput;
fuse_conn_init(fc);
+ fc->release = fuse_free_conn;
+
+ fud = fuse_dev_alloc(fc);
+ if (!fud)
+ goto err_put_conn;
fc->dev = sb->s_dev;
fc->sb = sb;
err = fuse_bdi_init(fc, sb);
if (err)
- goto err_put_conn;
+ goto err_dev_free;
sb->s_bdi = &fc->bdi;
@@ -1040,7 +1096,6 @@
fc->dont_mask = 1;
sb->s_flags |= MS_POSIXACL;
- fc->release = fuse_free_conn;
fc->flags = d.flags;
fc->user_id = d.user_id;
fc->group_id = d.group_id;
@@ -1053,14 +1108,14 @@
root = fuse_get_root_inode(sb, d.rootmode);
root_dentry = d_make_root(root);
if (!root_dentry)
- goto err_put_conn;
+ goto err_dev_free;
/* only now - we want root dentry with NULL ->d_op */
sb->s_d_op = &fuse_dentry_operations;
init_req = fuse_request_alloc(0);
if (!init_req)
goto err_put_root;
- init_req->background = 1;
+ __set_bit(FR_BACKGROUND, &init_req->flags);
if (is_bdev) {
fc->destroy_req = fuse_request_alloc(0);
@@ -1079,8 +1134,7 @@
list_add_tail(&fc->entry, &fuse_conn_list);
sb->s_root = root_dentry;
- fc->connected = 1;
- file->private_data = fuse_conn_get(fc);
+ file->private_data = fud;
mutex_unlock(&fuse_mutex);
/*
* atomic_dec_and_test() in fput() provides the necessary
@@ -1099,6 +1153,8 @@
fuse_request_free(init_req);
err_put_root:
dput(root_dentry);
+ err_dev_free:
+ fuse_dev_free(fud);
err_put_conn:
fuse_bdi_destroy(fc);
fuse_conn_put(fc);
@@ -1238,7 +1294,6 @@
}
static struct kobject *fuse_kobj;
-static struct kobject *connections_kobj;
static int fuse_sysfs_init(void)
{
@@ -1250,11 +1305,9 @@
goto out_err;
}
- connections_kobj = kobject_create_and_add("connections", fuse_kobj);
- if (!connections_kobj) {
- err = -ENOMEM;
+ err = sysfs_create_mount_point(fuse_kobj, "connections");
+ if (err)
goto out_fuse_unregister;
- }
return 0;
@@ -1266,7 +1319,7 @@
static void fuse_sysfs_cleanup(void)
{
- kobject_put(connections_kobj);
+ sysfs_remove_mount_point(fuse_kobj, "connections");
kobject_put(fuse_kobj);
}
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 95d2552..1f1c7dc 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -252,7 +252,7 @@
#define __hfs_u_to_mtime(sec) cpu_to_be32(sec + 2082844800U - sys_tz.tz_minuteswest * 60)
#define __hfs_m_to_utime(sec) (be32_to_cpu(sec) - 2082844800U + sys_tz.tz_minuteswest * 60)
-#define HFS_I(inode) (list_entry(inode, struct hfs_inode_info, vfs_inode))
+#define HFS_I(inode) (container_of(inode, struct hfs_inode_info, vfs_inode))
#define HFS_SB(sb) ((struct hfs_sb_info *)(sb)->s_fs_info)
#define hfs_m_to_utime(time) (struct timespec){ .tv_sec = __hfs_m_to_utime(time) }
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index b0441d6..f91a1fa 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -263,7 +263,7 @@
static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
{
- return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
+ return container_of(inode, struct hfsplus_inode_info, vfs_inode);
}
/*
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index f005046..d6a4b55 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -484,3 +484,98 @@
a->btree.first_free = cpu_to_le16(8);
return a;
}
+
+static unsigned find_run(__le32 *bmp, unsigned *idx)
+{
+ unsigned len;
+ while (tstbits(bmp, *idx, 1)) {
+ (*idx)++;
+ if (unlikely(*idx >= 0x4000))
+ return 0;
+ }
+ len = 1;
+ while (!tstbits(bmp, *idx + len, 1))
+ len++;
+ return len;
+}
+
+static int do_trim(struct super_block *s, secno start, unsigned len, secno limit_start, secno limit_end, unsigned minlen, unsigned *result)
+{
+ int err;
+ secno end;
+ if (fatal_signal_pending(current))
+ return -EINTR;
+ end = start + len;
+ if (start < limit_start)
+ start = limit_start;
+ if (end > limit_end)
+ end = limit_end;
+ if (start >= end)
+ return 0;
+ if (end - start < minlen)
+ return 0;
+ err = sb_issue_discard(s, start, end - start, GFP_NOFS, 0);
+ if (err)
+ return err;
+ *result += end - start;
+ return 0;
+}
+
+int hpfs_trim_fs(struct super_block *s, u64 start, u64 end, u64 minlen, unsigned *result)
+{
+ int err = 0;
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ unsigned idx, len, start_bmp, end_bmp;
+ __le32 *bmp;
+ struct quad_buffer_head qbh;
+
+ *result = 0;
+ if (!end || end > sbi->sb_fs_size)
+ end = sbi->sb_fs_size;
+ if (start >= sbi->sb_fs_size)
+ return 0;
+ if (minlen > 0x4000)
+ return 0;
+ if (start < sbi->sb_dirband_start + sbi->sb_dirband_size && end > sbi->sb_dirband_start) {
+ hpfs_lock(s);
+ if (s->s_flags & MS_RDONLY) {
+ err = -EROFS;
+ goto unlock_1;
+ }
+ if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
+ err = -EIO;
+ goto unlock_1;
+ }
+ idx = 0;
+ while ((len = find_run(bmp, &idx)) && !err) {
+ err = do_trim(s, sbi->sb_dirband_start + idx * 4, len * 4, start, end, minlen, result);
+ idx += len;
+ }
+ hpfs_brelse4(&qbh);
+unlock_1:
+ hpfs_unlock(s);
+ }
+ start_bmp = start >> 14;
+ end_bmp = (end + 0x3fff) >> 14;
+ while (start_bmp < end_bmp && !err) {
+ hpfs_lock(s);
+ if (s->s_flags & MS_RDONLY) {
+ err = -EROFS;
+ goto unlock_2;
+ }
+ if (!(bmp = hpfs_map_bitmap(s, start_bmp, &qbh, "trim"))) {
+ err = -EIO;
+ goto unlock_2;
+ }
+ idx = 0;
+ while ((len = find_run(bmp, &idx)) && !err) {
+ err = do_trim(s, (start_bmp << 14) + idx, len, start, end, minlen, result);
+ idx += len;
+ }
+ hpfs_brelse4(&qbh);
+unlock_2:
+ hpfs_unlock(s);
+ start_bmp++;
+ }
+ return err;
+}
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 2a8e074..dc540bf 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -327,4 +327,5 @@
.iterate = hpfs_readdir,
.release = hpfs_dir_release,
.fsync = hpfs_file_fsync,
+ .unlocked_ioctl = hpfs_ioctl,
};
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 6d8cfe9..7ca28d6 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -203,6 +203,7 @@
.release = hpfs_file_release,
.fsync = hpfs_file_fsync,
.splice_read = generic_file_splice_read,
+ .unlocked_ioctl = hpfs_ioctl,
};
const struct inode_operations hpfs_file_iops =
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index b63b75f..c4867b5 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -18,6 +18,8 @@
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/blkdev.h>
#include <asm/unaligned.h>
#include "hpfs.h"
@@ -200,6 +202,7 @@
struct dnode *hpfs_alloc_dnode(struct super_block *, secno, dnode_secno *, struct quad_buffer_head *);
struct fnode *hpfs_alloc_fnode(struct super_block *, secno, fnode_secno *, struct buffer_head **);
struct anode *hpfs_alloc_anode(struct super_block *, secno, anode_secno *, struct buffer_head **);
+int hpfs_trim_fs(struct super_block *, u64, u64, u64, unsigned *);
/* anode.c */
@@ -304,7 +307,7 @@
static inline struct hpfs_inode_info *hpfs_i(struct inode *inode)
{
- return list_entry(inode, struct hpfs_inode_info, vfs_inode);
+ return container_of(inode, struct hpfs_inode_info, vfs_inode);
}
static inline struct hpfs_sb_info *hpfs_sb(struct super_block *sb)
@@ -318,6 +321,7 @@
void hpfs_error(struct super_block *, const char *, ...);
int hpfs_stop_cycles(struct super_block *, int, int *, int *, char *);
unsigned hpfs_get_free_dnodes(struct super_block *);
+long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg);
/*
* local time (HPFS) to GMT (Unix)
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 7cd00d3..68a9bed 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -52,17 +52,20 @@
}
/* Filesystem error... */
-static char err_buf[1024];
-
void hpfs_error(struct super_block *s, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ pr_err("filesystem error: %pV", &vaf);
+
va_end(args);
- pr_err("filesystem error: %s", err_buf);
if (!hpfs_sb(s)->sb_was_error) {
if (hpfs_sb(s)->sb_err == 2) {
pr_cont("; crashing the system because you wanted it\n");
@@ -196,12 +199,39 @@
return 0;
}
+
+long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case FITRIM: {
+ struct fstrim_range range;
+ secno n_trimmed;
+ int r;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (copy_from_user(&range, (struct fstrim_range __user *)arg, sizeof(range)))
+ return -EFAULT;
+ r = hpfs_trim_fs(file_inode(file)->i_sb, range.start >> 9, (range.start + range.len) >> 9, (range.minlen + 511) >> 9, &n_trimmed);
+ if (r)
+ return r;
+ range.len = (u64)n_trimmed << 9;
+ if (copy_to_user((struct fstrim_range __user *)arg, &range, sizeof(range)))
+ return -EFAULT;
+ return 0;
+ }
+ default: {
+ return -ENOIOCTLCMD;
+ }
+ }
+}
+
+
static struct kmem_cache * hpfs_inode_cachep;
static struct inode *hpfs_alloc_inode(struct super_block *sb)
{
struct hpfs_inode_info *ei;
- ei = (struct hpfs_inode_info *)kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
+ ei = kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
if (!ei)
return NULL;
ei->vfs_inode.i_version = 1;
@@ -424,11 +454,14 @@
int o;
struct hpfs_sb_info *sbi = hpfs_sb(s);
char *new_opts = kstrdup(data, GFP_KERNEL);
-
+
+ if (!new_opts)
+ return -ENOMEM;
+
sync_filesystem(s);
*flags |= MS_NOATIME;
-
+
hpfs_lock(s);
uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode;
diff --git a/fs/inode.c b/fs/inode.c
index 069721f..d30640f 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -841,7 +841,11 @@
}
#endif
- *p = ++res;
+ res++;
+ /* get_next_ino should not provide a 0 inode number */
+ if (unlikely(!res))
+ res++;
+ *p = res;
put_cpu_var(last_ino);
return res;
}
@@ -1674,7 +1678,31 @@
}
EXPORT_SYMBOL(should_remove_suid);
-static int __remove_suid(struct dentry *dentry, int kill)
+/*
+ * Return mask of changes for notify_change() that need to be done as a
+ * response to write or truncate. Return 0 if nothing has to be changed.
+ * Negative value on error (change should be denied).
+ */
+int dentry_needs_remove_privs(struct dentry *dentry)
+{
+ struct inode *inode = d_inode(dentry);
+ int mask = 0;
+ int ret;
+
+ if (IS_NOSEC(inode))
+ return 0;
+
+ mask = should_remove_suid(dentry);
+ ret = security_inode_need_killpriv(dentry);
+ if (ret < 0)
+ return ret;
+ if (ret)
+ mask |= ATTR_KILL_PRIV;
+ return mask;
+}
+EXPORT_SYMBOL(dentry_needs_remove_privs);
+
+static int __remove_privs(struct dentry *dentry, int kill)
{
struct iattr newattrs;
@@ -1686,33 +1714,32 @@
return notify_change(dentry, &newattrs, NULL);
}
-int file_remove_suid(struct file *file)
+/*
+ * Remove special file priviledges (suid, capabilities) when file is written
+ * to or truncated.
+ */
+int file_remove_privs(struct file *file)
{
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = d_inode(dentry);
- int killsuid;
- int killpriv;
+ int kill;
int error = 0;
/* Fast path for nothing security related */
if (IS_NOSEC(inode))
return 0;
- killsuid = should_remove_suid(dentry);
- killpriv = security_inode_need_killpriv(dentry);
-
- if (killpriv < 0)
- return killpriv;
- if (killpriv)
- error = security_inode_killpriv(dentry);
- if (!error && killsuid)
- error = __remove_suid(dentry, killsuid);
- if (!error && (inode->i_sb->s_flags & MS_NOSEC))
- inode->i_flags |= S_NOSEC;
+ kill = file_needs_remove_privs(file);
+ if (kill < 0)
+ return kill;
+ if (kill)
+ error = __remove_privs(dentry, kill);
+ if (!error)
+ inode_has_no_xattr(inode);
return error;
}
-EXPORT_SYMBOL(file_remove_suid);
+EXPORT_SYMBOL(file_remove_privs);
/**
* file_update_time - update mtime and ctime time
@@ -1967,9 +1994,8 @@
* inode is being instantiated). The reason for the cmpxchg() loop
* --- which wouldn't be necessary if all code paths which modify
* i_flags actually followed this rule, is that there is at least one
- * code path which doesn't today --- for example,
- * __generic_file_aio_write() calls file_remove_suid() without holding
- * i_mutex --- so we use cmpxchg() out of an abundance of caution.
+ * code path which doesn't today so we use cmpxchg() out of an abundance
+ * of caution.
*
* In the long run, i_mutex is overkill, and we should probably look
* at using the i_lock spinlock to protect i_flags, and then make sure
diff --git a/fs/internal.h b/fs/internal.h
index 01dce1d..4d5af58 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -107,6 +107,7 @@
extern long do_handle_open(int mountdirfd,
struct file_handle __user *ufh, int open_flag);
extern int open_check_o_direct(struct file *f);
+extern int vfs_open(const struct path *, struct file *, const struct cred *);
/*
* inode.c
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index d200a9b..824e61e 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -19,7 +19,7 @@
struct kstatfs;
struct kvec;
-#define JFFS2_INODE_INFO(i) (list_entry(i, struct jffs2_inode_info, vfs_inode))
+#define JFFS2_INODE_INFO(i) (container_of(i, struct jffs2_inode_info, vfs_inode))
#define OFNI_EDONI_2SFFJ(f) (&(f)->vfs_inode)
#define JFFS2_SB_INFO(sb) (sb->s_fs_info)
#define OFNI_BS_2SFFJ(c) ((struct super_block *)c->os_priv)
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index 93a1232..8db8b7d 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -180,9 +180,6 @@
case JFS_IOC_SETFLAGS32:
cmd = JFS_IOC_SETFLAGS;
break;
- case FITRIM:
- cmd = FITRIM;
- break;
}
return jfs_ioctl(filp, cmd, arg);
}
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
index fa7e795..1f26d19 100644
--- a/fs/jfs/jfs_incore.h
+++ b/fs/jfs/jfs_incore.h
@@ -206,7 +206,7 @@
static inline struct jfs_inode_info *JFS_IP(struct inode *inode)
{
- return list_entry(inode, struct jfs_inode_info, vfs_inode);
+ return container_of(inode, struct jfs_inode_info, vfs_inode);
}
static inline int jfs_dirtable_inline(struct inode *inode)
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index fffca95..2d48d28 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -592,6 +592,9 @@
goto out_unlock;
ret = -ENOENT;
+ if (parent->flags & KERNFS_EMPTY_DIR)
+ goto out_unlock;
+
if ((parent->flags & KERNFS_ACTIVATED) && !kernfs_active(parent))
goto out_unlock;
@@ -783,6 +786,38 @@
return ERR_PTR(rc);
}
+/**
+ * kernfs_create_empty_dir - create an always empty directory
+ * @parent: parent in which to create a new directory
+ * @name: name of the new directory
+ *
+ * Returns the created node on success, ERR_PTR() value on failure.
+ */
+struct kernfs_node *kernfs_create_empty_dir(struct kernfs_node *parent,
+ const char *name)
+{
+ struct kernfs_node *kn;
+ int rc;
+
+ /* allocate */
+ kn = kernfs_new_node(parent, name, S_IRUGO|S_IXUGO|S_IFDIR, KERNFS_DIR);
+ if (!kn)
+ return ERR_PTR(-ENOMEM);
+
+ kn->flags |= KERNFS_EMPTY_DIR;
+ kn->dir.root = parent->dir.root;
+ kn->ns = NULL;
+ kn->priv = NULL;
+
+ /* link in */
+ rc = kernfs_add_one(kn);
+ if (!rc)
+ return kn;
+
+ kernfs_put(kn);
+ return ERR_PTR(rc);
+}
+
static struct dentry *kernfs_iop_lookup(struct inode *dir,
struct dentry *dentry,
unsigned int flags)
@@ -1254,7 +1289,8 @@
mutex_lock(&kernfs_mutex);
error = -ENOENT;
- if (!kernfs_active(kn) || !kernfs_active(new_parent))
+ if (!kernfs_active(kn) || !kernfs_active(new_parent) ||
+ (new_parent->flags & KERNFS_EMPTY_DIR))
goto out;
error = 0;
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 2da8493..756dd56 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -296,6 +296,8 @@
case KERNFS_DIR:
inode->i_op = &kernfs_dir_iops;
inode->i_fop = &kernfs_dir_fops;
+ if (kn->flags & KERNFS_EMPTY_DIR)
+ make_empty_dir_inode(inode);
break;
case KERNFS_FILE:
inode->i_size = kn->attr.size;
diff --git a/fs/libfs.c b/fs/libfs.c
index 65e1fec..102edfd 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -20,11 +20,6 @@
#include "internal.h"
-static inline int simple_positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
@@ -1108,3 +1103,98 @@
.readlink = generic_readlink
};
EXPORT_SYMBOL(simple_symlink_inode_operations);
+
+/*
+ * Operations for a permanently empty directory.
+ */
+static struct dentry *empty_dir_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+{
+ return ERR_PTR(-ENOENT);
+}
+
+static int empty_dir_getattr(struct vfsmount *mnt, struct dentry *dentry,
+ struct kstat *stat)
+{
+ struct inode *inode = d_inode(dentry);
+ generic_fillattr(inode, stat);
+ return 0;
+}
+
+static int empty_dir_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ return -EPERM;
+}
+
+static int empty_dir_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+{
+ return -EOPNOTSUPP;
+}
+
+static ssize_t empty_dir_getxattr(struct dentry *dentry, const char *name,
+ void *value, size_t size)
+{
+ return -EOPNOTSUPP;
+}
+
+static int empty_dir_removexattr(struct dentry *dentry, const char *name)
+{
+ return -EOPNOTSUPP;
+}
+
+static ssize_t empty_dir_listxattr(struct dentry *dentry, char *list, size_t size)
+{
+ return -EOPNOTSUPP;
+}
+
+static const struct inode_operations empty_dir_inode_operations = {
+ .lookup = empty_dir_lookup,
+ .permission = generic_permission,
+ .setattr = empty_dir_setattr,
+ .getattr = empty_dir_getattr,
+ .setxattr = empty_dir_setxattr,
+ .getxattr = empty_dir_getxattr,
+ .removexattr = empty_dir_removexattr,
+ .listxattr = empty_dir_listxattr,
+};
+
+static loff_t empty_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+ /* An empty directory has two entries . and .. at offsets 0 and 1 */
+ return generic_file_llseek_size(file, offset, whence, 2, 2);
+}
+
+static int empty_dir_readdir(struct file *file, struct dir_context *ctx)
+{
+ dir_emit_dots(file, ctx);
+ return 0;
+}
+
+static const struct file_operations empty_dir_operations = {
+ .llseek = empty_dir_llseek,
+ .read = generic_read_dir,
+ .iterate = empty_dir_readdir,
+ .fsync = noop_fsync,
+};
+
+
+void make_empty_dir_inode(struct inode *inode)
+{
+ set_nlink(inode, 2);
+ inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+ inode->i_uid = GLOBAL_ROOT_UID;
+ inode->i_gid = GLOBAL_ROOT_GID;
+ inode->i_rdev = 0;
+ inode->i_size = 2;
+ inode->i_blkbits = PAGE_SHIFT;
+ inode->i_blocks = 0;
+
+ inode->i_op = &empty_dir_inode_operations;
+ inode->i_fop = &empty_dir_operations;
+}
+
+bool is_empty_dir_inode(struct inode *inode)
+{
+ return (inode->i_fop == &empty_dir_operations) &&
+ (inode->i_op == &empty_dir_inode_operations);
+}
diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index 118e4e7..d19ac25 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -45,11 +45,6 @@
return last_byte;
}
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
{
struct address_space *mapping = page->mapping;
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 1ebd118..01ad81d 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -84,7 +84,7 @@
static inline struct minix_inode_info *minix_i(struct inode *inode)
{
- return list_entry(inode, struct minix_inode_info, vfs_inode);
+ return container_of(inode, struct minix_inode_info, vfs_inode);
}
static inline unsigned minix_blocks_needed(unsigned bits, unsigned blocksize)
diff --git a/fs/namei.c b/fs/namei.c
index 2dad0ea..ae4e4c1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -792,7 +792,7 @@
get_fs_root(current->fs, &nd->root);
}
-static unsigned set_root_rcu(struct nameidata *nd)
+static void set_root_rcu(struct nameidata *nd)
{
struct fs_struct *fs = current->fs;
unsigned seq;
@@ -802,7 +802,6 @@
nd->root = fs->root;
nd->root_seq = __read_seqcount_begin(&nd->root.dentry->d_seq);
} while (read_seqcount_retry(&fs->seq, seq));
- return nd->root_seq;
}
static void path_put_conditional(struct path *path, struct nameidata *nd)
@@ -1998,7 +1997,8 @@
if (*s == '/') {
if (flags & LOOKUP_RCU) {
rcu_read_lock();
- nd->seq = set_root_rcu(nd);
+ set_root_rcu(nd);
+ nd->seq = nd->root_seq;
} else {
set_root(nd);
path_get(&nd->root);
diff --git a/fs/namespace.c b/fs/namespace.c
index e99f1f4..c7cb8a5 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2343,6 +2343,8 @@
return err;
}
+static bool fs_fully_visible(struct file_system_type *fs_type, int *new_mnt_flags);
+
/*
* create a new mount for userspace and request it to be added into the
* namespace's tree
@@ -2374,6 +2376,10 @@
flags |= MS_NODEV;
mnt_flags |= MNT_NODEV | MNT_LOCK_NODEV;
}
+ if (type->fs_flags & FS_USERNS_VISIBLE) {
+ if (!fs_fully_visible(type, &mnt_flags))
+ return -EPERM;
+ }
}
mnt = vfs_kern_mount(type, flags, name, data);
@@ -3175,9 +3181,10 @@
return chrooted;
}
-bool fs_fully_visible(struct file_system_type *type)
+static bool fs_fully_visible(struct file_system_type *type, int *new_mnt_flags)
{
struct mnt_namespace *ns = current->nsproxy->mnt_ns;
+ int new_flags = *new_mnt_flags;
struct mount *mnt;
bool visible = false;
@@ -3196,16 +3203,36 @@
if (mnt->mnt.mnt_root != mnt->mnt.mnt_sb->s_root)
continue;
- /* This mount is not fully visible if there are any child mounts
- * that cover anything except for empty directories.
+ /* Verify the mount flags are equal to or more permissive
+ * than the proposed new mount.
+ */
+ if ((mnt->mnt.mnt_flags & MNT_LOCK_READONLY) &&
+ !(new_flags & MNT_READONLY))
+ continue;
+ if ((mnt->mnt.mnt_flags & MNT_LOCK_NODEV) &&
+ !(new_flags & MNT_NODEV))
+ continue;
+ if ((mnt->mnt.mnt_flags & MNT_LOCK_ATIME) &&
+ ((mnt->mnt.mnt_flags & MNT_ATIME_MASK) != (new_flags & MNT_ATIME_MASK)))
+ continue;
+
+ /* This mount is not fully visible if there are any
+ * locked child mounts that cover anything except for
+ * empty directories.
*/
list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
struct inode *inode = child->mnt_mountpoint->d_inode;
- if (!S_ISDIR(inode->i_mode))
- goto next;
- if (inode->i_nlink > 2)
+ /* Only worry about locked mounts */
+ if (!(mnt->mnt.mnt_flags & MNT_LOCKED))
+ continue;
+ /* Is the directory permanetly empty? */
+ if (!is_empty_dir_inode(inode))
goto next;
}
+ /* Preserve the locked attributes */
+ *new_mnt_flags |= mnt->mnt.mnt_flags & (MNT_LOCK_READONLY | \
+ MNT_LOCK_NODEV | \
+ MNT_LOCK_ATIME);
visible = true;
goto found;
next: ;
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 80021c7..93575e9 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -1145,6 +1145,8 @@
case 0x00:
ncp_dbg(1, "renamed %pd -> %pd\n",
old_dentry, new_dentry);
+ ncp_d_prune(old_dentry);
+ ncp_d_prune(new_dentry);
break;
case 0x9E:
error = -ENAMETOOLONG;
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 8d129bb..682529c 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -458,7 +458,7 @@
* pg_authenticate method for nfsv4 callback threads.
*
* The authflavor has been negotiated, so an incorrect flavor is a server
- * bug. Drop packets with incorrect authflavor.
+ * bug. Deny packets with incorrect authflavor.
*
* All other checking done after NFS decoding where the nfs_client can be
* found in nfs4_callback_compound
@@ -468,12 +468,12 @@
switch (rqstp->rq_authop->flavour) {
case RPC_AUTH_NULL:
if (rqstp->rq_proc != CB_NULL)
- return SVC_DROP;
+ return SVC_DENIED;
break;
case RPC_AUTH_GSS:
/* No RPC_AUTH_GSS support yet in NFSv4.1 */
if (svc_is_backchannel(rqstp))
- return SVC_DROP;
+ return SVC_DENIED;
}
return SVC_OK;
}
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 197806f..29e3c1b 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -327,10 +327,8 @@
dprintk("%s slot table seqid: %u\n", __func__, slot->seq_nr);
/* Normal */
- if (likely(args->csa_sequenceid == slot->seq_nr + 1)) {
- slot->seq_nr++;
+ if (likely(args->csa_sequenceid == slot->seq_nr + 1))
goto out_ok;
- }
/* Replay */
if (args->csa_sequenceid == slot->seq_nr) {
@@ -418,6 +416,7 @@
struct cb_process_state *cps)
{
struct nfs4_slot_table *tbl;
+ struct nfs4_slot *slot;
struct nfs_client *clp;
int i;
__be32 status = htonl(NFS4ERR_BADSESSION);
@@ -429,25 +428,32 @@
if (!(clp->cl_session->flags & SESSION4_BACK_CHAN))
goto out;
+
tbl = &clp->cl_session->bc_slot_table;
+ slot = tbl->slots + args->csa_slotid;
spin_lock(&tbl->slot_tbl_lock);
/* state manager is resetting the session */
if (test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state)) {
- spin_unlock(&tbl->slot_tbl_lock);
status = htonl(NFS4ERR_DELAY);
/* Return NFS4ERR_BADSESSION if we're draining the session
* in order to reset it.
*/
if (test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
status = htonl(NFS4ERR_BADSESSION);
- goto out;
+ goto out_unlock;
}
- status = validate_seqid(&clp->cl_session->bc_slot_table, args);
- spin_unlock(&tbl->slot_tbl_lock);
+ memcpy(&res->csr_sessionid, &args->csa_sessionid,
+ sizeof(res->csr_sessionid));
+ res->csr_sequenceid = args->csa_sequenceid;
+ res->csr_slotid = args->csa_slotid;
+ res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+ res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+
+ status = validate_seqid(tbl, args);
if (status)
- goto out;
+ goto out_unlock;
cps->slotid = args->csa_slotid;
@@ -458,15 +464,17 @@
*/
if (referring_call_exists(clp, args->csa_nrclists, args->csa_rclists)) {
status = htonl(NFS4ERR_DELAY);
- goto out;
+ goto out_unlock;
}
- memcpy(&res->csr_sessionid, &args->csa_sessionid,
- sizeof(res->csr_sessionid));
- res->csr_sequenceid = args->csa_sequenceid;
- res->csr_slotid = args->csa_slotid;
- res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
- res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+ /*
+ * RFC5661 20.9.3
+ * If CB_SEQUENCE returns an error, then the state of the slot
+ * (sequence ID, cached reply) MUST NOT change.
+ */
+ slot->seq_nr++;
+out_unlock:
+ spin_unlock(&tbl->slot_tbl_lock);
out:
cps->clp = clp; /* put in nfs4_callback_compound */
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 19ca95c..6b1697a 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -909,7 +909,7 @@
xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
- if (status == __constant_htonl(NFS4ERR_RESOURCE))
+ if (status == htonl(NFS4ERR_RESOURCE))
return rpc_garbage_args;
if (hdr_arg.minorversion == 0) {
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 892aeff..ecebb40 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -825,7 +825,6 @@
* Load up the server record from information gained in an fsinfo record
*/
static void nfs_server_set_fsinfo(struct nfs_server *server,
- struct nfs_fh *mntfh,
struct nfs_fsinfo *fsinfo)
{
unsigned long max_rpc_payload;
@@ -901,7 +900,7 @@
if (error < 0)
goto out_error;
- nfs_server_set_fsinfo(server, mntfh, &fsinfo);
+ nfs_server_set_fsinfo(server, &fsinfo);
/* Get some general file system info */
if (server->namelen == 0) {
@@ -1193,8 +1192,6 @@
}
#ifdef CONFIG_PROC_FS
-static struct proc_dir_entry *proc_fs_nfs;
-
static int nfs_server_list_open(struct inode *inode, struct file *file);
static void *nfs_server_list_start(struct seq_file *p, loff_t *pos);
static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos);
@@ -1364,27 +1361,29 @@
{
struct nfs_server *server;
struct nfs_client *clp;
- char dev[8], fsid[17];
+ char dev[13]; // 8 for 2^24, 1 for ':', 3 for 2^8, 1 for '\0'
+ char fsid[34]; // 2 * 16 for %llx, 1 for ':', 1 for '\0'
struct nfs_net *nn = net_generic(seq_file_net(m), nfs_net_id);
/* display header on line 1 */
if (v == &nn->nfs_volume_list) {
- seq_puts(m, "NV SERVER PORT DEV FSID FSC\n");
+ seq_puts(m, "NV SERVER PORT DEV FSID"
+ " FSC\n");
return 0;
}
/* display one transport per line on subsequent lines */
server = list_entry(v, struct nfs_server, master_link);
clp = server->nfs_client;
- snprintf(dev, 8, "%u:%u",
+ snprintf(dev, sizeof(dev), "%u:%u",
MAJOR(server->s_dev), MINOR(server->s_dev));
- snprintf(fsid, 17, "%llx:%llx",
+ snprintf(fsid, sizeof(fsid), "%llx:%llx",
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);
rcu_read_lock();
- seq_printf(m, "v%u %s %s %-7s %-17s %s\n",
+ seq_printf(m, "v%u %s %s %-12s %-33s %s\n",
clp->rpc_ops->version,
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),
@@ -1434,27 +1433,20 @@
*/
int __init nfs_fs_proc_init(void)
{
- struct proc_dir_entry *p;
-
- proc_fs_nfs = proc_mkdir("fs/nfsfs", NULL);
- if (!proc_fs_nfs)
+ if (!proc_mkdir("fs/nfsfs", NULL))
goto error_0;
/* a file of servers with which we're dealing */
- p = proc_symlink("servers", proc_fs_nfs, "../../net/nfsfs/servers");
- if (!p)
+ if (!proc_symlink("fs/nfsfs/servers", NULL, "../../net/nfsfs/servers"))
goto error_1;
/* a file of volumes that we have mounted */
- p = proc_symlink("volumes", proc_fs_nfs, "../../net/nfsfs/volumes");
- if (!p)
- goto error_2;
- return 0;
+ if (!proc_symlink("fs/nfsfs/volumes", NULL, "../../net/nfsfs/volumes"))
+ goto error_1;
-error_2:
- remove_proc_entry("servers", proc_fs_nfs);
+ return 0;
error_1:
- remove_proc_entry("fs/nfsfs", NULL);
+ remove_proc_subtree("fs/nfsfs", NULL);
error_0:
return -ENOMEM;
}
@@ -1464,9 +1456,7 @@
*/
void nfs_fs_proc_exit(void)
{
- remove_proc_entry("volumes", proc_fs_nfs);
- remove_proc_entry("servers", proc_fs_nfs);
- remove_proc_entry("fs/nfsfs", NULL);
+ remove_proc_subtree("fs/nfsfs", NULL);
}
#endif /* CONFIG_PROC_FS */
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index b2c8b31..547308a 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1470,9 +1470,6 @@
{
int err;
- if ((open_flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
- *opened |= FILE_CREATED;
-
err = finish_open(file, dentry, do_open, opened);
if (err)
goto out;
@@ -1771,7 +1768,7 @@
static void nfs_dentry_handle_enoent(struct dentry *dentry)
{
- if (d_really_is_positive(dentry) && !d_unhashed(dentry))
+ if (simple_positive(dentry))
d_delete(dentry);
}
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 8b8d83a..cc4fa1e 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -555,31 +555,22 @@
return nfs_wb_page(inode, page);
}
-#ifdef CONFIG_NFS_SWAP
static int nfs_swap_activate(struct swap_info_struct *sis, struct file *file,
sector_t *span)
{
- int ret;
struct rpc_clnt *clnt = NFS_CLIENT(file->f_mapping->host);
*span = sis->pages;
- rcu_read_lock();
- ret = xs_swapper(rcu_dereference(clnt->cl_xprt), 1);
- rcu_read_unlock();
-
- return ret;
+ return rpc_clnt_swap_activate(clnt);
}
static void nfs_swap_deactivate(struct file *file)
{
struct rpc_clnt *clnt = NFS_CLIENT(file->f_mapping->host);
- rcu_read_lock();
- xs_swapper(rcu_dereference(clnt->cl_xprt), 0);
- rcu_read_unlock();
+ rpc_clnt_swap_deactivate(clnt);
}
-#endif
const struct address_space_operations nfs_file_aops = {
.readpage = nfs_readpage,
@@ -596,10 +587,8 @@
.launder_page = nfs_launder_page,
.is_dirty_writeback = nfs_check_dirty_writeback,
.error_remove_page = generic_error_remove_page,
-#ifdef CONFIG_NFS_SWAP
.swap_activate = nfs_swap_activate,
.swap_deactivate = nfs_swap_deactivate,
-#endif
};
/*
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 7d05089..c12951b 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -20,6 +20,7 @@
#include "../nfs4trace.h"
#include "../iostat.h"
#include "../nfs.h"
+#include "../nfs42.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
@@ -182,17 +183,14 @@
static void ff_layout_sort_mirrors(struct nfs4_ff_layout_segment *fls)
{
- struct nfs4_ff_layout_mirror *tmp;
int i, j;
for (i = 0; i < fls->mirror_array_cnt - 1; i++) {
for (j = i + 1; j < fls->mirror_array_cnt; j++)
if (fls->mirror_array[i]->efficiency <
- fls->mirror_array[j]->efficiency) {
- tmp = fls->mirror_array[i];
- fls->mirror_array[i] = fls->mirror_array[j];
- fls->mirror_array[j] = tmp;
- }
+ fls->mirror_array[j]->efficiency)
+ swap(fls->mirror_array[i],
+ fls->mirror_array[j]);
}
}
@@ -274,6 +272,7 @@
spin_lock_init(&fls->mirror_array[i]->lock);
fls->mirror_array[i]->ds_count = ds_count;
+ fls->mirror_array[i]->lseg = &fls->generic_hdr;
/* deviceid */
rc = decode_deviceid(&stream, &devid);
@@ -344,6 +343,10 @@
fls->mirror_array[i]->gid);
}
+ p = xdr_inline_decode(&stream, 4);
+ if (p)
+ fls->flags = be32_to_cpup(p);
+
ff_layout_sort_mirrors(fls);
rc = ff_layout_check_layout(lgr);
if (rc)
@@ -415,6 +418,146 @@
return 1;
}
+static void
+nfs4_ff_start_busy_timer(struct nfs4_ff_busy_timer *timer)
+{
+ /* first IO request? */
+ if (atomic_inc_return(&timer->n_ops) == 1) {
+ timer->start_time = ktime_get();
+ }
+}
+
+static ktime_t
+nfs4_ff_end_busy_timer(struct nfs4_ff_busy_timer *timer)
+{
+ ktime_t start, now;
+
+ if (atomic_dec_return(&timer->n_ops) < 0)
+ WARN_ON_ONCE(1);
+
+ now = ktime_get();
+ start = timer->start_time;
+ timer->start_time = now;
+ return ktime_sub(now, start);
+}
+
+static ktime_t
+nfs4_ff_layout_calc_completion_time(struct rpc_task *task)
+{
+ return ktime_sub(ktime_get(), task->tk_start);
+}
+
+static bool
+nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror,
+ struct nfs4_ff_layoutstat *layoutstat)
+{
+ static const ktime_t notime = {0};
+ ktime_t now = ktime_get();
+
+ nfs4_ff_start_busy_timer(&layoutstat->busy_timer);
+ if (ktime_equal(mirror->start_time, notime))
+ mirror->start_time = now;
+ if (ktime_equal(mirror->last_report_time, notime))
+ mirror->last_report_time = now;
+ if (ktime_to_ms(ktime_sub(now, mirror->last_report_time)) >=
+ FF_LAYOUTSTATS_REPORT_INTERVAL) {
+ mirror->last_report_time = now;
+ return true;
+ }
+
+ return false;
+}
+
+static void
+nfs4_ff_layout_stat_io_update_requested(struct nfs4_ff_layoutstat *layoutstat,
+ __u64 requested)
+{
+ struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
+
+ iostat->ops_requested++;
+ iostat->bytes_requested += requested;
+}
+
+static void
+nfs4_ff_layout_stat_io_update_completed(struct nfs4_ff_layoutstat *layoutstat,
+ __u64 requested,
+ __u64 completed,
+ ktime_t time_completed)
+{
+ struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
+ ktime_t timer;
+
+ iostat->ops_completed++;
+ iostat->bytes_completed += completed;
+ iostat->bytes_not_delivered += requested - completed;
+
+ timer = nfs4_ff_end_busy_timer(&layoutstat->busy_timer);
+ iostat->total_busy_time =
+ ktime_add(iostat->total_busy_time, timer);
+ iostat->aggregate_completion_time =
+ ktime_add(iostat->aggregate_completion_time, time_completed);
+}
+
+static void
+nfs4_ff_layout_stat_io_start_read(struct nfs4_ff_layout_mirror *mirror,
+ __u64 requested)
+{
+ bool report;
+
+ spin_lock(&mirror->lock);
+ report = nfs4_ff_layoutstat_start_io(mirror, &mirror->read_stat);
+ nfs4_ff_layout_stat_io_update_requested(&mirror->read_stat, requested);
+ spin_unlock(&mirror->lock);
+
+ if (report)
+ pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
+}
+
+static void
+nfs4_ff_layout_stat_io_end_read(struct rpc_task *task,
+ struct nfs4_ff_layout_mirror *mirror,
+ __u64 requested,
+ __u64 completed)
+{
+ spin_lock(&mirror->lock);
+ nfs4_ff_layout_stat_io_update_completed(&mirror->read_stat,
+ requested, completed,
+ nfs4_ff_layout_calc_completion_time(task));
+ spin_unlock(&mirror->lock);
+}
+
+static void
+nfs4_ff_layout_stat_io_start_write(struct nfs4_ff_layout_mirror *mirror,
+ __u64 requested)
+{
+ bool report;
+
+ spin_lock(&mirror->lock);
+ report = nfs4_ff_layoutstat_start_io(mirror , &mirror->write_stat);
+ nfs4_ff_layout_stat_io_update_requested(&mirror->write_stat, requested);
+ spin_unlock(&mirror->lock);
+
+ if (report)
+ pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
+}
+
+static void
+nfs4_ff_layout_stat_io_end_write(struct rpc_task *task,
+ struct nfs4_ff_layout_mirror *mirror,
+ __u64 requested,
+ __u64 completed,
+ enum nfs3_stable_how committed)
+{
+ if (committed == NFS_UNSTABLE)
+ requested = completed = 0;
+
+ spin_lock(&mirror->lock);
+ nfs4_ff_layout_stat_io_update_completed(&mirror->write_stat,
+ requested, completed,
+ nfs4_ff_layout_calc_completion_time(task));
+ spin_unlock(&mirror->lock);
+}
+
static int
ff_layout_alloc_commit_info(struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo,
@@ -631,7 +774,7 @@
nfs_direct_set_resched_writes(hdr->dreq);
/* fake unstable write to let common nfs resend pages */
hdr->verf.committed = NFS_UNSTABLE;
- hdr->good_bytes = 0;
+ hdr->good_bytes = hdr->args.count;
}
return;
}
@@ -879,6 +1022,12 @@
return 0;
}
+static bool
+ff_layout_need_layoutcommit(struct pnfs_layout_segment *lseg)
+{
+ return !(FF_LAYOUT_LSEG(lseg)->flags & FF_FLAGS_NO_LAYOUTCOMMIT);
+}
+
/*
* We reference the rpc_cred of the first WRITE that triggers the need for
* a LAYOUTCOMMIT, and use it to send the layoutcommit compound.
@@ -891,6 +1040,9 @@
static void
ff_layout_set_layoutcommit(struct nfs_pgio_header *hdr)
{
+ if (!ff_layout_need_layoutcommit(hdr->lseg))
+ return;
+
pnfs_set_layoutcommit(hdr->inode, hdr->lseg,
hdr->mds_offset + hdr->res.count);
dprintk("%s inode %lu pls_end_pos %lu\n", __func__, hdr->inode->i_ino,
@@ -909,6 +1061,10 @@
static int ff_layout_read_prepare_common(struct rpc_task *task,
struct nfs_pgio_header *hdr)
{
+ nfs4_ff_layout_stat_io_start_read(
+ FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
+ hdr->args.count);
+
if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
rpc_exit(task, -EIO);
return -EIO;
@@ -962,15 +1118,15 @@
{
struct nfs_pgio_header *hdr = data;
- if (ff_layout_read_prepare_common(task, hdr))
- return;
-
if (ff_layout_setup_sequence(hdr->ds_clp,
&hdr->args.seq_args,
&hdr->res.seq_res,
task))
return;
+ if (ff_layout_read_prepare_common(task, hdr))
+ return;
+
if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
hdr->args.lock_context, FMODE_READ) == -EIO)
rpc_exit(task, -EIO); /* lost lock, terminate I/O */
@@ -982,6 +1138,10 @@
dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
+ nfs4_ff_layout_stat_io_end_read(task,
+ FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
+ hdr->args.count, hdr->res.count);
+
if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
task->tk_status == 0) {
nfs4_sequence_done(task, &hdr->res.seq_res);
@@ -1074,7 +1234,8 @@
return -EAGAIN;
}
- if (data->verf.committed == NFS_UNSTABLE)
+ if (data->verf.committed == NFS_UNSTABLE
+ && ff_layout_need_layoutcommit(data->lseg))
pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb);
return 0;
@@ -1083,6 +1244,10 @@
static int ff_layout_write_prepare_common(struct rpc_task *task,
struct nfs_pgio_header *hdr)
{
+ nfs4_ff_layout_stat_io_start_write(
+ FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
+ hdr->args.count);
+
if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
rpc_exit(task, -EIO);
return -EIO;
@@ -1116,15 +1281,15 @@
{
struct nfs_pgio_header *hdr = data;
- if (ff_layout_write_prepare_common(task, hdr))
- return;
-
if (ff_layout_setup_sequence(hdr->ds_clp,
&hdr->args.seq_args,
&hdr->res.seq_res,
task))
return;
+ if (ff_layout_write_prepare_common(task, hdr))
+ return;
+
if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
hdr->args.lock_context, FMODE_WRITE) == -EIO)
rpc_exit(task, -EIO); /* lost lock, terminate I/O */
@@ -1134,6 +1299,11 @@
{
struct nfs_pgio_header *hdr = data;
+ nfs4_ff_layout_stat_io_end_write(task,
+ FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
+ hdr->args.count, hdr->res.count,
+ hdr->res.verf->committed);
+
if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
task->tk_status == 0) {
nfs4_sequence_done(task, &hdr->res.seq_res);
@@ -1152,8 +1322,17 @@
&NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_WRITE]);
}
+static void ff_layout_commit_prepare_common(struct rpc_task *task,
+ struct nfs_commit_data *cdata)
+{
+ nfs4_ff_layout_stat_io_start_write(
+ FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
+ 0);
+}
+
static void ff_layout_commit_prepare_v3(struct rpc_task *task, void *data)
{
+ ff_layout_commit_prepare_common(task, data);
rpc_call_start(task);
}
@@ -1161,10 +1340,30 @@
{
struct nfs_commit_data *wdata = data;
- ff_layout_setup_sequence(wdata->ds_clp,
+ if (ff_layout_setup_sequence(wdata->ds_clp,
&wdata->args.seq_args,
&wdata->res.seq_res,
- task);
+ task))
+ return;
+ ff_layout_commit_prepare_common(task, data);
+}
+
+static void ff_layout_commit_done(struct rpc_task *task, void *data)
+{
+ struct nfs_commit_data *cdata = data;
+ struct nfs_page *req;
+ __u64 count = 0;
+
+ if (task->tk_status == 0) {
+ list_for_each_entry(req, &cdata->pages, wb_list)
+ count += req->wb_bytes;
+ }
+
+ nfs4_ff_layout_stat_io_end_write(task,
+ FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
+ count, count, NFS_FILE_SYNC);
+
+ pnfs_generic_write_commit_done(task, data);
}
static void ff_layout_commit_count_stats(struct rpc_task *task, void *data)
@@ -1205,14 +1404,14 @@
static const struct rpc_call_ops ff_layout_commit_call_ops_v3 = {
.rpc_call_prepare = ff_layout_commit_prepare_v3,
- .rpc_call_done = pnfs_generic_write_commit_done,
+ .rpc_call_done = ff_layout_commit_done,
.rpc_count_stats = ff_layout_commit_count_stats,
.rpc_release = pnfs_generic_commit_release,
};
static const struct rpc_call_ops ff_layout_commit_call_ops_v4 = {
.rpc_call_prepare = ff_layout_commit_prepare_v4,
- .rpc_call_done = pnfs_generic_write_commit_done,
+ .rpc_call_done = ff_layout_commit_done,
.rpc_count_stats = ff_layout_commit_count_stats,
.rpc_release = pnfs_generic_commit_release,
};
@@ -1256,7 +1455,6 @@
fh = nfs4_ff_layout_select_ds_fh(lseg, idx);
if (fh)
hdr->args.fh = fh;
-
/*
* Note that if we ever decide to split across DSes,
* then we may need to handle dense-like offsets.
@@ -1385,6 +1583,7 @@
fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);
if (fh)
data->args.fh = fh;
+
return nfs_initiate_commit(ds_clnt, data, ds->ds_clp->rpc_ops,
vers == 3 ? &ff_layout_commit_call_ops_v3 :
&ff_layout_commit_call_ops_v4,
@@ -1488,6 +1687,247 @@
dprintk("%s: Return\n", __func__);
}
+static int
+ff_layout_ntop4(const struct sockaddr *sap, char *buf, const size_t buflen)
+{
+ const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
+
+ return snprintf(buf, buflen, "%pI4", &sin->sin_addr);
+}
+
+static size_t
+ff_layout_ntop6_noscopeid(const struct sockaddr *sap, char *buf,
+ const int buflen)
+{
+ const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
+ const struct in6_addr *addr = &sin6->sin6_addr;
+
+ /*
+ * RFC 4291, Section 2.2.2
+ *
+ * Shorthanded ANY address
+ */
+ if (ipv6_addr_any(addr))
+ return snprintf(buf, buflen, "::");
+
+ /*
+ * RFC 4291, Section 2.2.2
+ *
+ * Shorthanded loopback address
+ */
+ if (ipv6_addr_loopback(addr))
+ return snprintf(buf, buflen, "::1");
+
+ /*
+ * RFC 4291, Section 2.2.3
+ *
+ * Special presentation address format for mapped v4
+ * addresses.
+ */
+ if (ipv6_addr_v4mapped(addr))
+ return snprintf(buf, buflen, "::ffff:%pI4",
+ &addr->s6_addr32[3]);
+
+ /*
+ * RFC 4291, Section 2.2.1
+ */
+ return snprintf(buf, buflen, "%pI6c", addr);
+}
+
+/* Derived from rpc_sockaddr2uaddr */
+static void
+ff_layout_encode_netaddr(struct xdr_stream *xdr, struct nfs4_pnfs_ds_addr *da)
+{
+ struct sockaddr *sap = (struct sockaddr *)&da->da_addr;
+ char portbuf[RPCBIND_MAXUADDRPLEN];
+ char addrbuf[RPCBIND_MAXUADDRLEN];
+ char *netid;
+ unsigned short port;
+ int len, netid_len;
+ __be32 *p;
+
+ switch (sap->sa_family) {
+ case AF_INET:
+ if (ff_layout_ntop4(sap, addrbuf, sizeof(addrbuf)) == 0)
+ return;
+ port = ntohs(((struct sockaddr_in *)sap)->sin_port);
+ netid = "tcp";
+ netid_len = 3;
+ break;
+ case AF_INET6:
+ if (ff_layout_ntop6_noscopeid(sap, addrbuf, sizeof(addrbuf)) == 0)
+ return;
+ port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
+ netid = "tcp6";
+ netid_len = 4;
+ break;
+ default:
+ /* we only support tcp and tcp6 */
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+ snprintf(portbuf, sizeof(portbuf), ".%u.%u", port >> 8, port & 0xff);
+ len = strlcat(addrbuf, portbuf, sizeof(addrbuf));
+
+ p = xdr_reserve_space(xdr, 4 + netid_len);
+ xdr_encode_opaque(p, netid, netid_len);
+
+ p = xdr_reserve_space(xdr, 4 + len);
+ xdr_encode_opaque(p, addrbuf, len);
+}
+
+static void
+ff_layout_encode_nfstime(struct xdr_stream *xdr,
+ ktime_t t)
+{
+ struct timespec64 ts;
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, 12);
+ ts = ktime_to_timespec64(t);
+ p = xdr_encode_hyper(p, ts.tv_sec);
+ *p++ = cpu_to_be32(ts.tv_nsec);
+}
+
+static void
+ff_layout_encode_io_latency(struct xdr_stream *xdr,
+ struct nfs4_ff_io_stat *stat)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, 5 * 8);
+ p = xdr_encode_hyper(p, stat->ops_requested);
+ p = xdr_encode_hyper(p, stat->bytes_requested);
+ p = xdr_encode_hyper(p, stat->ops_completed);
+ p = xdr_encode_hyper(p, stat->bytes_completed);
+ p = xdr_encode_hyper(p, stat->bytes_not_delivered);
+ ff_layout_encode_nfstime(xdr, stat->total_busy_time);
+ ff_layout_encode_nfstime(xdr, stat->aggregate_completion_time);
+}
+
+static void
+ff_layout_encode_layoutstats(struct xdr_stream *xdr,
+ struct nfs42_layoutstat_args *args,
+ struct nfs42_layoutstat_devinfo *devinfo)
+{
+ struct nfs4_ff_layout_mirror *mirror = devinfo->layout_private;
+ struct nfs4_pnfs_ds_addr *da;
+ struct nfs4_pnfs_ds *ds = mirror->mirror_ds->ds;
+ struct nfs_fh *fh = &mirror->fh_versions[0];
+ __be32 *p, *start;
+
+ da = list_first_entry(&ds->ds_addrs, struct nfs4_pnfs_ds_addr, da_node);
+ dprintk("%s: DS %s: encoding address %s\n",
+ __func__, ds->ds_remotestr, da->da_remotestr);
+ /* layoutupdate length */
+ start = xdr_reserve_space(xdr, 4);
+ /* netaddr4 */
+ ff_layout_encode_netaddr(xdr, da);
+ /* nfs_fh4 */
+ p = xdr_reserve_space(xdr, 4 + fh->size);
+ xdr_encode_opaque(p, fh->data, fh->size);
+ /* ff_io_latency4 read */
+ spin_lock(&mirror->lock);
+ ff_layout_encode_io_latency(xdr, &mirror->read_stat.io_stat);
+ /* ff_io_latency4 write */
+ ff_layout_encode_io_latency(xdr, &mirror->write_stat.io_stat);
+ spin_unlock(&mirror->lock);
+ /* nfstime4 */
+ ff_layout_encode_nfstime(xdr, ktime_sub(ktime_get(), mirror->start_time));
+ /* bool */
+ p = xdr_reserve_space(xdr, 4);
+ *p = cpu_to_be32(false);
+
+ *start = cpu_to_be32((xdr->p - start - 1) * 4);
+}
+
+static bool
+ff_layout_mirror_prepare_stats(struct nfs42_layoutstat_args *args,
+ struct pnfs_layout_segment *pls,
+ int *dev_count, int dev_limit)
+{
+ struct nfs4_ff_layout_mirror *mirror;
+ struct nfs4_deviceid_node *dev;
+ struct nfs42_layoutstat_devinfo *devinfo;
+ int i;
+
+ for (i = 0; i <= FF_LAYOUT_MIRROR_COUNT(pls); i++) {
+ if (*dev_count >= dev_limit)
+ break;
+ mirror = FF_LAYOUT_COMP(pls, i);
+ if (!mirror || !mirror->mirror_ds)
+ continue;
+ dev = FF_LAYOUT_DEVID_NODE(pls, i);
+ devinfo = &args->devinfo[*dev_count];
+ memcpy(&devinfo->dev_id, &dev->deviceid, NFS4_DEVICEID4_SIZE);
+ devinfo->offset = pls->pls_range.offset;
+ devinfo->length = pls->pls_range.length;
+ /* well, we don't really know if IO is continuous or not! */
+ devinfo->read_count = mirror->read_stat.io_stat.bytes_completed;
+ devinfo->read_bytes = mirror->read_stat.io_stat.bytes_completed;
+ devinfo->write_count = mirror->write_stat.io_stat.bytes_completed;
+ devinfo->write_bytes = mirror->write_stat.io_stat.bytes_completed;
+ devinfo->layout_type = LAYOUT_FLEX_FILES;
+ devinfo->layoutstats_encode = ff_layout_encode_layoutstats;
+ devinfo->layout_private = mirror;
+ /* lseg refcount put in cleanup_layoutstats */
+ pnfs_get_lseg(pls);
+
+ ++(*dev_count);
+ }
+
+ return *dev_count < dev_limit;
+}
+
+static int
+ff_layout_prepare_layoutstats(struct nfs42_layoutstat_args *args)
+{
+ struct pnfs_layout_segment *pls;
+ int dev_count = 0;
+
+ spin_lock(&args->inode->i_lock);
+ list_for_each_entry(pls, &NFS_I(args->inode)->layout->plh_segs, pls_list) {
+ dev_count += FF_LAYOUT_MIRROR_COUNT(pls);
+ }
+ spin_unlock(&args->inode->i_lock);
+ /* For now, send at most PNFS_LAYOUTSTATS_MAXDEV statistics */
+ if (dev_count > PNFS_LAYOUTSTATS_MAXDEV) {
+ dprintk("%s: truncating devinfo to limit (%d:%d)\n",
+ __func__, dev_count, PNFS_LAYOUTSTATS_MAXDEV);
+ dev_count = PNFS_LAYOUTSTATS_MAXDEV;
+ }
+ args->devinfo = kmalloc(dev_count * sizeof(*args->devinfo), GFP_KERNEL);
+ if (!args->devinfo)
+ return -ENOMEM;
+
+ dev_count = 0;
+ spin_lock(&args->inode->i_lock);
+ list_for_each_entry(pls, &NFS_I(args->inode)->layout->plh_segs, pls_list) {
+ if (!ff_layout_mirror_prepare_stats(args, pls, &dev_count,
+ PNFS_LAYOUTSTATS_MAXDEV)) {
+ break;
+ }
+ }
+ spin_unlock(&args->inode->i_lock);
+ args->num_dev = dev_count;
+
+ return 0;
+}
+
+static void
+ff_layout_cleanup_layoutstats(struct nfs42_layoutstat_data *data)
+{
+ struct nfs4_ff_layout_mirror *mirror;
+ int i;
+
+ for (i = 0; i < data->args.num_dev; i++) {
+ mirror = data->args.devinfo[i].layout_private;
+ data->args.devinfo[i].layout_private = NULL;
+ pnfs_put_lseg(mirror->lseg);
+ }
+}
+
static struct pnfs_layoutdriver_type flexfilelayout_type = {
.id = LAYOUT_FLEX_FILES,
.name = "LAYOUT_FLEX_FILES",
@@ -1510,6 +1950,8 @@
.alloc_deviceid_node = ff_layout_alloc_deviceid_node,
.encode_layoutreturn = ff_layout_encode_layoutreturn,
.sync = pnfs_nfs_generic_sync,
+ .prepare_layoutstats = ff_layout_prepare_layoutstats,
+ .cleanup_layoutstats = ff_layout_cleanup_layoutstats,
};
static int __init nfs4flexfilelayout_init(void)
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index 070f204..f92f9a0 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -9,12 +9,17 @@
#ifndef FS_NFS_NFS4FLEXFILELAYOUT_H
#define FS_NFS_NFS4FLEXFILELAYOUT_H
+#define FF_FLAGS_NO_LAYOUTCOMMIT 1
+
#include "../pnfs.h"
/* XXX: Let's filter out insanely large mirror count for now to avoid oom
* due to network error etc. */
#define NFS4_FLEXFILE_LAYOUT_MAX_MIRROR_CNT 4096
+/* LAYOUTSTATS report interval in ms */
+#define FF_LAYOUTSTATS_REPORT_INTERVAL (60000L)
+
struct nfs4_ff_ds_version {
u32 version;
u32 minor_version;
@@ -41,24 +46,48 @@
struct nfs4_deviceid deviceid;
};
+struct nfs4_ff_io_stat {
+ __u64 ops_requested;
+ __u64 bytes_requested;
+ __u64 ops_completed;
+ __u64 bytes_completed;
+ __u64 bytes_not_delivered;
+ ktime_t total_busy_time;
+ ktime_t aggregate_completion_time;
+};
+
+struct nfs4_ff_busy_timer {
+ ktime_t start_time;
+ atomic_t n_ops;
+};
+
+struct nfs4_ff_layoutstat {
+ struct nfs4_ff_io_stat io_stat;
+ struct nfs4_ff_busy_timer busy_timer;
+};
+
struct nfs4_ff_layout_mirror {
+ struct pnfs_layout_segment *lseg; /* back pointer */
u32 ds_count;
u32 efficiency;
struct nfs4_ff_layout_ds *mirror_ds;
u32 fh_versions_cnt;
struct nfs_fh *fh_versions;
nfs4_stateid stateid;
- struct nfs4_string user_name;
- struct nfs4_string group_name;
u32 uid;
u32 gid;
struct rpc_cred *cred;
spinlock_t lock;
+ struct nfs4_ff_layoutstat read_stat;
+ struct nfs4_ff_layoutstat write_stat;
+ ktime_t start_time;
+ ktime_t last_report_time;
};
struct nfs4_ff_layout_segment {
struct pnfs_layout_segment generic_hdr;
u64 stripe_unit;
+ u32 flags;
u32 mirror_array_cnt;
struct nfs4_ff_layout_mirror **mirror_array;
};
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 77a2d02..f13e196 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -324,7 +324,8 @@
__func__, PTR_ERR(cred));
return PTR_ERR(cred);
} else {
- mirror->cred = cred;
+ if (cmpxchg(&mirror->cred, NULL, cred))
+ put_rpccred(cred);
}
}
return 0;
@@ -386,7 +387,7 @@
/* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */
smp_rmb();
if (ds->ds_clp)
- goto out;
+ goto out_update_creds;
flavor = nfs4_ff_layout_choose_authflavor(mirror);
@@ -430,7 +431,7 @@
}
}
}
-
+out_update_creds:
if (ff_layout_update_mirror_cred(mirror, ds))
ds = NULL;
out:
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f734562..b77b328 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -678,6 +678,8 @@
if (!err) {
generic_fillattr(inode, stat);
stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode));
+ if (S_ISDIR(inode->i_mode))
+ stat->blksize = NFS_SERVER(inode)->dtsize;
}
out:
trace_nfs_getattr_exit(inode, err);
@@ -2008,17 +2010,15 @@
if (err)
goto out1;
-#ifdef CONFIG_PROC_FS
rpc_proc_register(&init_net, &nfs_rpcstat);
-#endif
- if ((err = register_nfs_fs()) != 0)
+
+ err = register_nfs_fs();
+ if (err)
goto out0;
return 0;
out0:
-#ifdef CONFIG_PROC_FS
rpc_proc_unregister(&init_net, "nfs");
-#endif
nfs_destroy_directcache();
out1:
nfs_destroy_writepagecache();
@@ -2049,9 +2049,7 @@
nfs_destroy_nfspagecache();
nfs_fscache_unregister();
unregister_pernet_subsys(&nfs_net_ops);
-#ifdef CONFIG_PROC_FS
rpc_proc_unregister(&init_net, "nfs");
-#endif
unregister_nfs_fs();
nfs_fs_proc_exit();
nfsiod_stop();
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 53852a4..9b04c2e 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -1342,7 +1342,7 @@
if (args->npages != 0)
xdr_write_pages(xdr, args->pages, 0, args->len);
else
- xdr_reserve_space(xdr, NFS_ACL_INLINE_BUFSIZE);
+ xdr_reserve_space(xdr, args->len);
error = nfsacl_encode(xdr->buf, base, args->inode,
(args->mask & NFS_ACL) ?
diff --git a/fs/nfs/nfs42.h b/fs/nfs/nfs42.h
index 7afb894..ff66ae7 100644
--- a/fs/nfs/nfs42.h
+++ b/fs/nfs/nfs42.h
@@ -5,11 +5,18 @@
#ifndef __LINUX_FS_NFS_NFS4_2_H
#define __LINUX_FS_NFS_NFS4_2_H
+/*
+ * FIXME: four LAYOUTSTATS calls per compound at most! Do we need to support
+ * more? Need to consider not to pre-alloc too much for a compound.
+ */
+#define PNFS_LAYOUTSTATS_MAXDEV (4)
+
/* nfs4.2proc.c */
int nfs42_proc_allocate(struct file *, loff_t, loff_t);
int nfs42_proc_deallocate(struct file *, loff_t, loff_t);
loff_t nfs42_proc_llseek(struct file *, loff_t, int);
-
+int nfs42_proc_layoutstats_generic(struct nfs_server *,
+ struct nfs42_layoutstat_data *);
/* nfs4.2xdr.h */
extern struct rpc_procinfo nfs4_2_procedures[];
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 3a9e752..f486b80 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -10,6 +10,11 @@
#include <linux/nfs_fs.h>
#include "nfs4_fs.h"
#include "nfs42.h"
+#include "iostat.h"
+#include "pnfs.h"
+#include "internal.h"
+
+#define NFSDBG_FACILITY NFSDBG_PNFS
static int nfs42_set_rw_stateid(nfs4_stateid *dst, struct file *file,
fmode_t fmode)
@@ -165,3 +170,85 @@
return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes);
}
+
+static void
+nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs42_layoutstat_data *data = calldata;
+ struct nfs_server *server = NFS_SERVER(data->args.inode);
+
+ nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args,
+ &data->res.seq_res, task);
+}
+
+static void
+nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
+{
+ struct nfs42_layoutstat_data *data = calldata;
+
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
+
+ switch (task->tk_status) {
+ case 0:
+ break;
+ case -ENOTSUPP:
+ case -EOPNOTSUPP:
+ NFS_SERVER(data->inode)->caps &= ~NFS_CAP_LAYOUTSTATS;
+ default:
+ dprintk("%s server returns %d\n", __func__, task->tk_status);
+ }
+}
+
+static void
+nfs42_layoutstat_release(void *calldata)
+{
+ struct nfs42_layoutstat_data *data = calldata;
+ struct nfs_server *nfss = NFS_SERVER(data->args.inode);
+
+ if (nfss->pnfs_curr_ld->cleanup_layoutstats)
+ nfss->pnfs_curr_ld->cleanup_layoutstats(data);
+
+ pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout);
+ smp_mb__before_atomic();
+ clear_bit(NFS_INO_LAYOUTSTATS, &NFS_I(data->args.inode)->flags);
+ smp_mb__after_atomic();
+ nfs_iput_and_deactive(data->inode);
+ kfree(data->args.devinfo);
+ kfree(data);
+}
+
+static const struct rpc_call_ops nfs42_layoutstat_ops = {
+ .rpc_call_prepare = nfs42_layoutstat_prepare,
+ .rpc_call_done = nfs42_layoutstat_done,
+ .rpc_release = nfs42_layoutstat_release,
+};
+
+int nfs42_proc_layoutstats_generic(struct nfs_server *server,
+ struct nfs42_layoutstat_data *data)
+{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTSTATS],
+ .rpc_argp = &data->args,
+ .rpc_resp = &data->res,
+ };
+ struct rpc_task_setup task_setup = {
+ .rpc_client = server->client,
+ .rpc_message = &msg,
+ .callback_ops = &nfs42_layoutstat_ops,
+ .callback_data = data,
+ .flags = RPC_TASK_ASYNC,
+ };
+ struct rpc_task *task;
+
+ data->inode = nfs_igrab_and_active(data->args.inode);
+ if (!data->inode) {
+ nfs42_layoutstat_release(data);
+ return -EAGAIN;
+ }
+ nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
+ task = rpc_run_task(&task_setup);
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+ return 0;
+}
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 1a25b27..a6bd27d 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -4,6 +4,8 @@
#ifndef __LINUX_FS_NFS_NFS4_2XDR_H
#define __LINUX_FS_NFS_NFS4_2XDR_H
+#include "nfs42.h"
+
#define encode_fallocate_maxsz (encode_stateid_maxsz + \
2 /* offset */ + \
2 /* length */)
@@ -22,6 +24,16 @@
1 /* whence */ + \
2 /* offset */ + \
2 /* length */)
+#define encode_io_info_maxsz 4
+#define encode_layoutstats_maxsz (op_decode_hdr_maxsz + \
+ 2 /* offset */ + \
+ 2 /* length */ + \
+ encode_stateid_maxsz + \
+ encode_io_info_maxsz + \
+ encode_io_info_maxsz + \
+ 1 /* opaque devaddr4 length */ + \
+ XDR_QUADLEN(PNFS_LAYOUTSTATS_MAXSIZE))
+#define decode_layoutstats_maxsz (op_decode_hdr_maxsz)
#define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
@@ -45,6 +57,14 @@
#define NFS4_dec_seek_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_seek_maxsz)
+#define NFS4_enc_layoutstats_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
+ encode_putfh_maxsz + \
+ PNFS_LAYOUTSTATS_MAXDEV * encode_layoutstats_maxsz)
+#define NFS4_dec_layoutstats_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
+ decode_putfh_maxsz + \
+ PNFS_LAYOUTSTATS_MAXDEV * decode_layoutstats_maxsz)
static void encode_fallocate(struct xdr_stream *xdr,
@@ -81,6 +101,33 @@
encode_uint32(xdr, args->sa_what);
}
+static void encode_layoutstats(struct xdr_stream *xdr,
+ struct nfs42_layoutstat_args *args,
+ struct nfs42_layoutstat_devinfo *devinfo,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ encode_op_hdr(xdr, OP_LAYOUTSTATS, decode_layoutstats_maxsz, hdr);
+ p = reserve_space(xdr, 8 + 8);
+ p = xdr_encode_hyper(p, devinfo->offset);
+ p = xdr_encode_hyper(p, devinfo->length);
+ encode_nfs4_stateid(xdr, &args->stateid);
+ p = reserve_space(xdr, 4*8 + NFS4_DEVICEID4_SIZE + 4);
+ p = xdr_encode_hyper(p, devinfo->read_count);
+ p = xdr_encode_hyper(p, devinfo->read_bytes);
+ p = xdr_encode_hyper(p, devinfo->write_count);
+ p = xdr_encode_hyper(p, devinfo->write_bytes);
+ p = xdr_encode_opaque_fixed(p, devinfo->dev_id.data,
+ NFS4_DEVICEID4_SIZE);
+ /* Encode layoutupdate4 */
+ *p++ = cpu_to_be32(devinfo->layout_type);
+ if (devinfo->layoutstats_encode != NULL)
+ devinfo->layoutstats_encode(xdr, args, devinfo);
+ else
+ encode_uint32(xdr, 0);
+}
+
/*
* Encode ALLOCATE request
*/
@@ -137,6 +184,28 @@
encode_nops(&hdr);
}
+/*
+ * Encode LAYOUTSTATS request
+ */
+static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs42_layoutstat_args *args)
+{
+ int i;
+
+ struct compound_hdr hdr = {
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
+ };
+
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
+ for (i = 0; i < args->num_dev; i++)
+ encode_layoutstats(xdr, args, &args->devinfo[i], &hdr);
+ encode_nops(&hdr);
+}
+
static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
{
return decode_op_hdr(xdr, OP_ALLOCATE);
@@ -169,6 +238,12 @@
return -EIO;
}
+static int decode_layoutstats(struct xdr_stream *xdr,
+ struct nfs42_layoutstat_res *res)
+{
+ return decode_op_hdr(xdr, OP_LAYOUTSTATS);
+}
+
/*
* Decode ALLOCATE request
*/
@@ -246,4 +321,35 @@
out:
return status;
}
+
+/*
+ * Decode LAYOUTSTATS request
+ */
+static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs42_layoutstat_res *res)
+{
+ struct compound_hdr hdr;
+ int status, i;
+
+ status = decode_compound_hdr(xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
+ status = decode_putfh(xdr);
+ if (status)
+ goto out;
+ WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
+ for (i = 0; i < res->num_dev; i++) {
+ status = decode_layoutstats(xdr, res);
+ if (status)
+ goto out;
+ }
+out:
+ res->rpc_status = status;
+ return status;
+}
+
#endif /* __LINUX_FS_NFS_NFS4_2XDR_H */
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index fdef424..ea3bee9 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -233,6 +233,7 @@
extern int nfs4_call_sync(struct rpc_clnt *, struct nfs_server *,
struct rpc_message *, struct nfs4_sequence_args *,
struct nfs4_sequence_res *, int);
+extern void nfs4_init_sequence(struct nfs4_sequence_args *, struct nfs4_sequence_res *, int);
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *);
extern int nfs4_proc_get_rootfh(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *, bool);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index e42be52..3aa6a9b 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -676,7 +676,6 @@
break;
}
- /* No matching nfs_client found. */
spin_unlock(&nn->nfs_client_lock);
dprintk("NFS: <-- %s status = %d\n", __func__, status);
nfs_put_client(prev);
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index f58c17b..dcd39d4 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -41,6 +41,10 @@
dprintk("NFS: open file(%pd2)\n", dentry);
+ err = nfs_check_flags(openflags);
+ if (err)
+ return err;
+
if ((openflags & O_ACCMODE) == 3)
openflags--;
diff --git a/fs/nfs/nfs4getroot.c b/fs/nfs/nfs4getroot.c
index c0b3a16..039b3eb 100644
--- a/fs/nfs/nfs4getroot.c
+++ b/fs/nfs/nfs4getroot.c
@@ -35,13 +35,6 @@
goto out;
}
- if (fsinfo.fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) {
- printk(KERN_ERR "nfs4_get_rootfh:"
- " getroot obtained referral\n");
- ret = -EREMOTE;
- goto out;
- }
-
memcpy(&server->fsid, &fsinfo.fattr->fsid, sizeof(server->fsid));
out:
nfs_free_fattr(fsinfo.fattr);
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index 2e1737c..535dfc6 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -494,12 +494,7 @@
int nfs_idmap_init(void)
{
- int ret;
- ret = nfs_idmap_init_keyring();
- if (ret != 0)
- goto out;
-out:
- return ret;
+ return nfs_idmap_init_keyring();
}
void nfs_idmap_quit(void)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 55e1e3a..6f228b5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -356,6 +356,9 @@
case 0:
return 0;
case -NFS4ERR_OPENMODE:
+ case -NFS4ERR_DELEG_REVOKED:
+ case -NFS4ERR_ADMIN_REVOKED:
+ case -NFS4ERR_BAD_STATEID:
if (inode && nfs4_have_delegation(inode, FMODE_READ)) {
nfs4_inode_return_delegation(inode);
exception->retry = 1;
@@ -367,15 +370,6 @@
if (ret < 0)
break;
goto wait_on_recovery;
- case -NFS4ERR_DELEG_REVOKED:
- case -NFS4ERR_ADMIN_REVOKED:
- case -NFS4ERR_BAD_STATEID:
- if (state == NULL)
- break;
- ret = nfs4_schedule_stateid_recovery(server, state);
- if (ret < 0)
- break;
- goto wait_on_recovery;
case -NFS4ERR_EXPIRED:
if (state != NULL) {
ret = nfs4_schedule_stateid_recovery(server, state);
@@ -482,8 +476,8 @@
struct nfs4_sequence_res *seq_res;
};
-static void nfs4_init_sequence(struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res, int cache_reply)
+void nfs4_init_sequence(struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res, int cache_reply)
{
args->sa_slot = NULL;
args->sa_cache_this = cache_reply;
@@ -1553,6 +1547,13 @@
struct nfs4_state *newstate;
int ret;
+ if ((opendata->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR ||
+ opendata->o_arg.claim == NFS4_OPEN_CLAIM_DELEG_CUR_FH) &&
+ (opendata->o_arg.u.delegation_type & fmode) != fmode)
+ /* This mode can't have been delegated, so we must have
+ * a valid open_stateid to cover it - not need to reclaim.
+ */
+ return 0;
opendata->o_arg.open_flags = 0;
opendata->o_arg.fmode = fmode;
opendata->o_arg.share_access = nfs4_map_atomic_open_share(
@@ -1684,6 +1685,7 @@
"%d.\n", __func__, err);
case 0:
case -ENOENT:
+ case -EAGAIN:
case -ESTALE:
break;
case -NFS4ERR_BADSESSION:
@@ -3355,6 +3357,8 @@
goto out;
case -NFS4ERR_MOVED:
err = nfs4_get_referral(client, dir, name, fattr, fhandle);
+ if (err == -NFS4ERR_MOVED)
+ err = nfs4_handle_exception(NFS_SERVER(dir), err, &exception);
goto out;
case -NFS4ERR_WRONGSEC:
err = -EPERM;
@@ -4955,49 +4959,128 @@
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
-static unsigned int
-nfs4_init_nonuniform_client_string(struct nfs_client *clp,
- char *buf, size_t len)
+static int
+nfs4_init_nonuniform_client_string(struct nfs_client *clp)
{
- unsigned int result;
+ int result;
+ size_t len;
+ char *str;
+ bool retried = false;
if (clp->cl_owner_id != NULL)
- return strlcpy(buf, clp->cl_owner_id, len);
+ return 0;
+retry:
+ rcu_read_lock();
+ len = 10 + strlen(clp->cl_ipaddr) + 1 +
+ strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)) +
+ 1 +
+ strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)) +
+ 1;
+ rcu_read_unlock();
+
+ if (len > NFS4_OPAQUE_LIMIT + 1)
+ return -EINVAL;
+
+ /*
+ * Since this string is allocated at mount time, and held until the
+ * nfs_client is destroyed, we can use GFP_KERNEL here w/o worrying
+ * about a memory-reclaim deadlock.
+ */
+ str = kmalloc(len, GFP_KERNEL);
+ if (!str)
+ return -ENOMEM;
rcu_read_lock();
- result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
- clp->cl_ipaddr,
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR),
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_PROTO));
+ result = scnprintf(str, len, "Linux NFSv4.0 %s/%s %s",
+ clp->cl_ipaddr,
+ rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR),
+ rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO));
rcu_read_unlock();
- clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
- return result;
+
+ /* Did something change? */
+ if (result >= len) {
+ kfree(str);
+ if (retried)
+ return -EINVAL;
+ retried = true;
+ goto retry;
+ }
+ clp->cl_owner_id = str;
+ return 0;
}
-static unsigned int
-nfs4_init_uniform_client_string(struct nfs_client *clp,
- char *buf, size_t len)
+static int
+nfs4_init_uniquifier_client_string(struct nfs_client *clp)
{
- const char *nodename = clp->cl_rpcclient->cl_nodename;
- unsigned int result;
+ int result;
+ size_t len;
+ char *str;
+
+ len = 10 + 10 + 1 + 10 + 1 +
+ strlen(nfs4_client_id_uniquifier) + 1 +
+ strlen(clp->cl_rpcclient->cl_nodename) + 1;
+
+ if (len > NFS4_OPAQUE_LIMIT + 1)
+ return -EINVAL;
+
+ /*
+ * Since this string is allocated at mount time, and held until the
+ * nfs_client is destroyed, we can use GFP_KERNEL here w/o worrying
+ * about a memory-reclaim deadlock.
+ */
+ str = kmalloc(len, GFP_KERNEL);
+ if (!str)
+ return -ENOMEM;
+
+ result = scnprintf(str, len, "Linux NFSv%u.%u %s/%s",
+ clp->rpc_ops->version, clp->cl_minorversion,
+ nfs4_client_id_uniquifier,
+ clp->cl_rpcclient->cl_nodename);
+ if (result >= len) {
+ kfree(str);
+ return -EINVAL;
+ }
+ clp->cl_owner_id = str;
+ return 0;
+}
+
+static int
+nfs4_init_uniform_client_string(struct nfs_client *clp)
+{
+ int result;
+ size_t len;
+ char *str;
if (clp->cl_owner_id != NULL)
- return strlcpy(buf, clp->cl_owner_id, len);
+ return 0;
if (nfs4_client_id_uniquifier[0] != '\0')
- result = scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
- clp->rpc_ops->version,
- clp->cl_minorversion,
- nfs4_client_id_uniquifier,
- nodename);
- else
- result = scnprintf(buf, len, "Linux NFSv%u.%u %s",
- clp->rpc_ops->version, clp->cl_minorversion,
- nodename);
- clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
- return result;
+ return nfs4_init_uniquifier_client_string(clp);
+
+ len = 10 + 10 + 1 + 10 + 1 +
+ strlen(clp->cl_rpcclient->cl_nodename) + 1;
+
+ if (len > NFS4_OPAQUE_LIMIT + 1)
+ return -EINVAL;
+
+ /*
+ * Since this string is allocated at mount time, and held until the
+ * nfs_client is destroyed, we can use GFP_KERNEL here w/o worrying
+ * about a memory-reclaim deadlock.
+ */
+ str = kmalloc(len, GFP_KERNEL);
+ if (!str)
+ return -ENOMEM;
+
+ result = scnprintf(str, len, "Linux NFSv%u.%u %s",
+ clp->rpc_ops->version, clp->cl_minorversion,
+ clp->cl_rpcclient->cl_nodename);
+ if (result >= len) {
+ kfree(str);
+ return -EINVAL;
+ }
+ clp->cl_owner_id = str;
+ return 0;
}
/*
@@ -5044,7 +5127,7 @@
struct nfs4_setclientid setclientid = {
.sc_verifier = &sc_verifier,
.sc_prog = program,
- .sc_cb_ident = clp->cl_cb_ident,
+ .sc_clnt = clp,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID],
@@ -5064,16 +5147,15 @@
/* nfs_client_id4 */
nfs4_init_boot_verifier(clp, &sc_verifier);
+
if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags))
- setclientid.sc_name_len =
- nfs4_init_uniform_client_string(clp,
- setclientid.sc_name,
- sizeof(setclientid.sc_name));
+ status = nfs4_init_uniform_client_string(clp);
else
- setclientid.sc_name_len =
- nfs4_init_nonuniform_client_string(clp,
- setclientid.sc_name,
- sizeof(setclientid.sc_name));
+ status = nfs4_init_nonuniform_client_string(clp);
+
+ if (status)
+ goto out;
+
/* cb_client4 */
setclientid.sc_netid_len =
nfs4_init_callback_netid(clp,
@@ -5083,9 +5165,9 @@
sizeof(setclientid.sc_uaddr), "%s.%u.%u",
clp->cl_ipaddr, port >> 8, port & 255);
- dprintk("NFS call setclientid auth=%s, '%.*s'\n",
+ dprintk("NFS call setclientid auth=%s, '%s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
- setclientid.sc_name_len, setclientid.sc_name);
+ clp->cl_owner_id);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task)) {
status = PTR_ERR(task);
@@ -5402,6 +5484,7 @@
atomic_inc(&lsp->ls_count);
/* Ensure we don't close file until we're done freeing locks! */
p->ctx = get_nfs_open_context(ctx);
+ get_file(fl->fl_file);
memcpy(&p->fl, fl, sizeof(p->fl));
p->server = NFS_SERVER(inode);
return p;
@@ -5413,6 +5496,7 @@
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_lock_state(calldata->lsp);
put_nfs_open_context(calldata->ctx);
+ fput(calldata->fl.fl_file);
kfree(calldata);
}
@@ -6846,11 +6930,14 @@
};
nfs4_init_boot_verifier(clp, &verifier);
- args.id_len = nfs4_init_uniform_client_string(clp, args.id,
- sizeof(args.id));
- dprintk("NFS call exchange_id auth=%s, '%.*s'\n",
+
+ status = nfs4_init_uniform_client_string(clp);
+ if (status)
+ goto out;
+
+ dprintk("NFS call exchange_id auth=%s, '%s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
- args.id_len, args.id);
+ clp->cl_owner_id);
res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
GFP_NOFS);
@@ -6885,7 +6972,7 @@
/* unsupported! */
WARN_ON_ONCE(1);
status = -EINVAL;
- goto out_server_scope;
+ goto out_impl_id;
}
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
@@ -6913,6 +7000,7 @@
/* use the most recent implementation id */
kfree(clp->cl_implid);
clp->cl_implid = res.impl_id;
+ res.impl_id = NULL;
if (clp->cl_serverscope != NULL &&
!nfs41_same_server_scope(clp->cl_serverscope,
@@ -6926,15 +7014,16 @@
if (clp->cl_serverscope == NULL) {
clp->cl_serverscope = res.server_scope;
- goto out;
+ res.server_scope = NULL;
}
- } else
- kfree(res.impl_id);
+ }
-out_server_owner:
- kfree(res.server_owner);
+out_impl_id:
+ kfree(res.impl_id);
out_server_scope:
kfree(res.server_scope);
+out_server_owner:
+ kfree(res.server_owner);
out:
if (clp->cl_implid != NULL)
dprintk("NFS reply exchange_id: Server Implementation ID: "
@@ -8061,9 +8150,8 @@
struct rpc_task *task;
int status = 0;
- dprintk("NFS: %4d initiating layoutcommit call. sync %d "
- "lbw: %llu inode %lu\n",
- data->task.tk_pid, sync,
+ dprintk("NFS: initiating layoutcommit call. sync %d "
+ "lbw: %llu inode %lu\n", sync,
data->args.lastbytewritten,
data->args.inode->i_ino);
@@ -8557,7 +8645,8 @@
| NFS_CAP_ATOMIC_OPEN_V1
| NFS_CAP_ALLOCATE
| NFS_CAP_DEALLOCATE
- | NFS_CAP_SEEK,
+ | NFS_CAP_SEEK
+ | NFS_CAP_LAYOUTSTATS,
.init_client = nfs41_init_client,
.shutdown_client = nfs41_shutdown_client,
.match_stateid = nfs41_match_stateid,
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 2782cfc..605840d 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -309,7 +309,6 @@
if (test_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state))
goto do_confirm;
- nfs4_begin_drain_session(clp);
status = nfs4_proc_exchange_id(clp, cred);
if (status != 0)
goto out;
@@ -1482,6 +1481,8 @@
spin_unlock(&state->state_lock);
}
nfs4_put_open_state(state);
+ clear_bit(NFS4CLNT_RECLAIM_NOGRACE,
+ &state->flags);
spin_lock(&sp->so_lock);
goto restart;
}
@@ -1830,6 +1831,7 @@
clp->cl_mvops->reboot_recovery_ops;
int status;
+ nfs4_begin_drain_session(clp);
cred = nfs4_get_clid_cred(clp);
if (cred == NULL)
return -ENOENT;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 0aea978..558cd65d 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -139,7 +139,8 @@
#define encode_setclientid_maxsz \
(op_encode_hdr_maxsz + \
XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
- XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
+ /* client name */ \
+ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
1 /* sc_prog */ + \
1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
@@ -288,7 +289,8 @@
#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
encode_verifier_maxsz + \
1 /* co_ownerid.len */ + \
- XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
+ /* eia_clientowner */ \
+ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
1 /* flags */ + \
1 /* spa_how */ + \
/* max is SP4_MACH_CRED (for now) */ + \
@@ -1667,13 +1669,14 @@
encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
encode_nfs4_verifier(xdr, setclientid->sc_verifier);
- encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
+ encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id),
+ setclientid->sc_clnt->cl_owner_id);
p = reserve_space(xdr, 4);
*p = cpu_to_be32(setclientid->sc_prog);
encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
p = reserve_space(xdr, 4);
- *p = cpu_to_be32(setclientid->sc_cb_ident);
+ *p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident);
}
static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
@@ -1747,7 +1750,8 @@
encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
encode_nfs4_verifier(xdr, args->verifier);
- encode_string(xdr, args->id_len, args->id);
+ encode_string(xdr, strlen(args->client->cl_owner_id),
+ args->client->cl_owner_id);
encode_uint32(xdr, args->flags);
encode_uint32(xdr, args->state_protect.how);
@@ -7427,6 +7431,7 @@
PROC(SEEK, enc_seek, dec_seek),
PROC(ALLOCATE, enc_allocate, dec_allocate),
PROC(DEALLOCATE, enc_deallocate, dec_deallocate),
+ PROC(LAYOUTSTATS, enc_layoutstats, dec_layoutstats),
#endif /* CONFIG_NFS_V4_2 */
};
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 282b393..1da68d3 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -636,9 +636,8 @@
hdr->rw_ops->rw_initiate(hdr, &msg, rpc_ops, &task_setup_data, how);
- dprintk("NFS: %5u initiated pgio call "
+ dprintk("NFS: initiated pgio call "
"(req %s/%llu, %u bytes @ offset %llu)\n",
- hdr->task.tk_pid,
hdr->inode->i_sb->s_id,
(unsigned long long)NFS_FILEID(hdr->inode),
hdr->args.count,
@@ -690,8 +689,6 @@
static void nfs_pgio_release(void *calldata)
{
struct nfs_pgio_header *hdr = calldata;
- if (hdr->rw_ops->rw_release)
- hdr->rw_ops->rw_release(hdr);
nfs_pgio_data_destroy(hdr);
hdr->completion_ops->completion(hdr);
}
@@ -711,7 +708,9 @@
* nfs_pageio_init - initialise a page io descriptor
* @desc: pointer to descriptor
* @inode: pointer to inode
- * @doio: pointer to io function
+ * @pg_ops: pointer to pageio operations
+ * @compl_ops: pointer to pageio completion operations
+ * @rw_ops: pointer to nfs read/write operations
* @bsize: io block size
* @io_flags: extra parameters for the io function
*/
@@ -1186,6 +1185,7 @@
* nfs_pageio_complete_mirror - Complete I/O on the current mirror of an
* nfs_pageio_descriptor
* @desc: pointer to io descriptor
+ * @mirror_idx: pointer to mirror index
*/
static void nfs_pageio_complete_mirror(struct nfs_pageio_descriptor *desc,
u32 mirror_idx)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 2306062..0ba9a02 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -35,6 +35,7 @@
#include "iostat.h"
#include "nfs4trace.h"
#include "delegation.h"
+#include "nfs42.h"
#define NFSDBG_FACILITY NFSDBG_PNFS
#define PNFS_LAYOUTGET_RETRY_TIMEOUT (120*HZ)
@@ -1821,6 +1822,7 @@
/* Resend all requests through the MDS */
nfs_pageio_init_write(&pgio, hdr->inode, FLUSH_STABLE, true,
hdr->completion_ops);
+ set_bit(NFS_CONTEXT_RESEND_WRITES, &hdr->args.context->flags);
return nfs_pageio_resend(&pgio, hdr);
}
EXPORT_SYMBOL_GPL(pnfs_write_done_resend_to_mds);
@@ -1865,6 +1867,7 @@
mirror->pg_recoalesce = 1;
}
nfs_pgio_data_destroy(hdr);
+ hdr->release(hdr);
}
static enum pnfs_try_status
@@ -1979,6 +1982,7 @@
mirror->pg_recoalesce = 1;
}
nfs_pgio_data_destroy(hdr);
+ hdr->release(hdr);
}
/*
@@ -2247,3 +2251,63 @@
}
return thp;
}
+
+#if IS_ENABLED(CONFIG_NFS_V4_2)
+int
+pnfs_report_layoutstat(struct inode *inode)
+{
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+ struct nfs_server *server = NFS_SERVER(inode);
+ struct nfs_inode *nfsi = NFS_I(inode);
+ struct nfs42_layoutstat_data *data;
+ struct pnfs_layout_hdr *hdr;
+ int status = 0;
+
+ if (!pnfs_enabled_sb(server) || !ld->prepare_layoutstats)
+ goto out;
+
+ if (!nfs_server_capable(inode, NFS_CAP_LAYOUTSTATS))
+ goto out;
+
+ if (test_and_set_bit(NFS_INO_LAYOUTSTATS, &nfsi->flags))
+ goto out;
+
+ spin_lock(&inode->i_lock);
+ if (!NFS_I(inode)->layout) {
+ spin_unlock(&inode->i_lock);
+ goto out;
+ }
+ hdr = NFS_I(inode)->layout;
+ pnfs_get_layout_hdr(hdr);
+ spin_unlock(&inode->i_lock);
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ status = -ENOMEM;
+ goto out_put;
+ }
+
+ data->args.fh = NFS_FH(inode);
+ data->args.inode = inode;
+ nfs4_stateid_copy(&data->args.stateid, &hdr->plh_stateid);
+ status = ld->prepare_layoutstats(&data->args);
+ if (status)
+ goto out_free;
+
+ status = nfs42_proc_layoutstats_generic(NFS_SERVER(inode), data);
+
+out:
+ dprintk("%s returns %d\n", __func__, status);
+ return status;
+
+out_free:
+ kfree(data);
+out_put:
+ pnfs_put_layout_hdr(hdr);
+ smp_mb__before_atomic();
+ clear_bit(NFS_INO_LAYOUTSTATS, &nfsi->flags);
+ smp_mb__after_atomic();
+ goto out;
+}
+EXPORT_SYMBOL_GPL(pnfs_report_layoutstat);
+#endif
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 1e6308f..3e6ab7b 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -178,6 +178,8 @@
void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo,
struct xdr_stream *xdr,
const struct nfs4_layoutcommit_args *args);
+ int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args);
+ void (*cleanup_layoutstats) (struct nfs42_layoutstat_data *data);
};
struct pnfs_layout_hdr {
@@ -290,7 +292,6 @@
struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
void pnfs_error_mark_layout_for_return(struct inode *inode,
struct pnfs_layout_segment *lseg);
-
/* nfs4_deviceid_flags */
enum {
NFS_DEVICEID_INVALID = 0, /* set when MDS clientid recalled */
@@ -689,4 +690,14 @@
#endif /* CONFIG_NFS_V4_1 */
+#if IS_ENABLED(CONFIG_NFS_V4_2)
+int pnfs_report_layoutstat(struct inode *inode);
+#else
+static inline int
+pnfs_report_layoutstat(struct inode *inode)
+{
+ return 0;
+}
+#endif
+
#endif /* FS_NFS_PNFS_H */
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e6c2625..65869ca 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1290,6 +1290,7 @@
static void nfs_redirty_request(struct nfs_page *req)
{
nfs_mark_request_dirty(req);
+ set_bit(NFS_CONTEXT_RESEND_WRITES, &req->wb_context->flags);
nfs_unlock_request(req);
nfs_end_page_writeback(req);
nfs_release_request(req);
@@ -1348,11 +1349,6 @@
NFS_PROTO(data->inode)->commit_rpc_prepare(task, data);
}
-static void nfs_writeback_release_common(struct nfs_pgio_header *hdr)
-{
- /* do nothing! */
-}
-
/*
* Special version of should_remove_suid() that ignores capabilities.
*/
@@ -1556,7 +1552,7 @@
/* Set up the initial task struct. */
nfs_ops->commit_setup(data, &msg);
- dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
+ dprintk("NFS: initiated commit call\n");
nfs4_state_protect(NFS_SERVER(data->inode)->nfs_client,
NFS_SP4_MACH_CRED_COMMIT, &task_setup_data.rpc_client, &msg);
@@ -2013,7 +2009,6 @@
.rw_mode = FMODE_WRITE,
.rw_alloc_header = nfs_writehdr_alloc,
.rw_free_header = nfs_writehdr_free,
- .rw_release = nfs_writeback_release_common,
.rw_done = nfs_writeback_done,
.rw_result = nfs_writeback_result,
.rw_initiate = nfs_initiate_write,
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 0ee0bed..6b8b92b 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -61,11 +61,6 @@
page_cache_release(page);
}
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
/*
* Return the offset into page `page_nr' of the last valid
* byte in that page, plus one.
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 258d9fe..4a73d6d 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -307,31 +307,13 @@
static ssize_t
nilfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
{
- struct file *file = iocb->ki_filp;
- struct address_space *mapping = file->f_mapping;
- struct inode *inode = file->f_mapping->host;
- size_t count = iov_iter_count(iter);
- ssize_t size;
+ struct inode *inode = file_inode(iocb->ki_filp);
if (iov_iter_rw(iter) == WRITE)
return 0;
/* Needs synchronization with the cleaner */
- size = blockdev_direct_IO(iocb, inode, iter, offset, nilfs_get_block);
-
- /*
- * In case of error extending write may have instantiated a few
- * blocks outside i_size. Trim these off again.
- */
- if (unlikely(iov_iter_rw(iter) == WRITE && size < 0)) {
- loff_t isize = i_size_read(inode);
- loff_t end = offset + count;
-
- if (end > isize)
- nilfs_write_failed(mapping, end);
- }
-
- return size;
+ return blockdev_direct_IO(iocb, inode, iter, offset, nilfs_get_block);
}
const struct address_space_operations nilfs_aops = {
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 9a20e51..aba4381 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -1369,7 +1369,6 @@
case NILFS_IOCTL_SYNC:
case NILFS_IOCTL_RESIZE:
case NILFS_IOCTL_SET_ALLOC_RANGE:
- case FITRIM:
break;
default:
return -ENOIOCTLCMD;
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 2cd6536..262561f 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -382,7 +382,7 @@
base_ni = ni;
if (NInoAttr(ni))
base_ni = ni->ext.base_ntfs_ino;
- err = file_remove_suid(file);
+ err = file_remove_privs(file);
if (unlikely(err))
goto out;
/*
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index 76b6cfb..b3c3469 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -239,7 +239,7 @@
*/
static inline ntfs_inode *NTFS_I(struct inode *inode)
{
- return (ntfs_inode *)list_entry(inode, big_ntfs_inode, vfs_inode);
+ return (ntfs_inode *)container_of(inode, big_ntfs_inode, vfs_inode);
}
static inline struct inode *VFS_I(ntfs_inode *ni)
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 53e6c40..3cb097c 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -980,7 +980,6 @@
case OCFS2_IOC_GROUP_EXTEND:
case OCFS2_IOC_GROUP_ADD:
case OCFS2_IOC_GROUP_ADD64:
- case FITRIM:
break;
case OCFS2_IOC_REFLINK:
if (copy_from_user(&args, argp, sizeof(args)))
diff --git a/fs/open.c b/fs/open.c
index e0250bd..e33dab2 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -51,8 +51,10 @@
newattrs.ia_valid |= ATTR_FILE;
}
- /* Remove suid/sgid on truncate too */
- ret = should_remove_suid(dentry);
+ /* Remove suid, sgid, and file capabilities on truncate too */
+ ret = dentry_needs_remove_privs(dentry);
+ if (ret < 0)
+ return ret;
if (ret)
newattrs.ia_valid |= ret | ATTR_FORCE;
@@ -678,18 +680,18 @@
}
static int do_dentry_open(struct file *f,
+ struct inode *inode,
int (*open)(struct inode *, struct file *),
const struct cred *cred)
{
static const struct file_operations empty_fops = {};
- struct inode *inode;
int error;
f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK |
FMODE_PREAD | FMODE_PWRITE;
path_get(&f->f_path);
- inode = f->f_inode = f->f_path.dentry->d_inode;
+ f->f_inode = inode;
f->f_mapping = inode->i_mapping;
if (unlikely(f->f_flags & O_PATH)) {
@@ -793,7 +795,8 @@
BUG_ON(*opened & FILE_OPENED); /* once it's opened, it's opened */
file->f_path.dentry = dentry;
- error = do_dentry_open(file, open, current_cred());
+ error = do_dentry_open(file, d_backing_inode(dentry), open,
+ current_cred());
if (!error)
*opened |= FILE_OPENED;
@@ -822,6 +825,34 @@
}
EXPORT_SYMBOL(finish_no_open);
+char *file_path(struct file *filp, char *buf, int buflen)
+{
+ return d_path(&filp->f_path, buf, buflen);
+}
+EXPORT_SYMBOL(file_path);
+
+/**
+ * vfs_open - open the file at the given path
+ * @path: path to open
+ * @file: newly allocated file with f_flag initialized
+ * @cred: credentials to use
+ */
+int vfs_open(const struct path *path, struct file *file,
+ const struct cred *cred)
+{
+ struct dentry *dentry = path->dentry;
+ struct inode *inode = dentry->d_inode;
+
+ file->f_path = *path;
+ if (dentry->d_flags & DCACHE_OP_SELECT_INODE) {
+ inode = dentry->d_op->d_select_inode(dentry, file->f_flags);
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
+ }
+
+ return do_dentry_open(file, inode, NULL, cred);
+}
+
struct file *dentry_open(const struct path *path, int flags,
const struct cred *cred)
{
@@ -853,26 +884,6 @@
}
EXPORT_SYMBOL(dentry_open);
-/**
- * vfs_open - open the file at the given path
- * @path: path to open
- * @filp: newly allocated file with f_flag initialized
- * @cred: credentials to use
- */
-int vfs_open(const struct path *path, struct file *filp,
- const struct cred *cred)
-{
- struct inode *inode = path->dentry->d_inode;
-
- if (inode->i_op->dentry_open)
- return inode->i_op->dentry_open(path->dentry, filp, cred);
- else {
- filp->f_path = *path;
- return do_dentry_open(filp, NULL, cred);
- }
-}
-EXPORT_SYMBOL(vfs_open);
-
static inline int build_open_flags(int flags, umode_t mode, struct open_flags *op)
{
int lookup_flags = 0;
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 308379b..d9da5a4 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -337,37 +337,33 @@
return true;
}
-static int ovl_dentry_open(struct dentry *dentry, struct file *file,
- const struct cred *cred)
+struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags)
{
int err;
struct path realpath;
enum ovl_path_type type;
- bool want_write = false;
+
+ if (d_is_dir(dentry))
+ return d_backing_inode(dentry);
type = ovl_path_real(dentry, &realpath);
- if (ovl_open_need_copy_up(file->f_flags, type, realpath.dentry)) {
- want_write = true;
+ if (ovl_open_need_copy_up(file_flags, type, realpath.dentry)) {
err = ovl_want_write(dentry);
if (err)
- goto out;
+ return ERR_PTR(err);
- if (file->f_flags & O_TRUNC)
+ if (file_flags & O_TRUNC)
err = ovl_copy_up_last(dentry, NULL, true);
else
err = ovl_copy_up(dentry);
+ ovl_drop_write(dentry);
if (err)
- goto out_drop_write;
+ return ERR_PTR(err);
ovl_path_upper(dentry, &realpath);
}
- err = vfs_open(&realpath, file, cred);
-out_drop_write:
- if (want_write)
- ovl_drop_write(dentry);
-out:
- return err;
+ return d_backing_inode(realpath.dentry);
}
static const struct inode_operations ovl_file_inode_operations = {
@@ -378,7 +374,6 @@
.getxattr = ovl_getxattr,
.listxattr = ovl_listxattr,
.removexattr = ovl_removexattr,
- .dentry_open = ovl_dentry_open,
};
static const struct inode_operations ovl_symlink_inode_operations = {
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 17ac5af..ea5a40b 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -173,6 +173,7 @@
void *value, size_t size);
ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
int ovl_removexattr(struct dentry *dentry, const char *name);
+struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags);
struct inode *ovl_new_inode(struct super_block *sb, umode_t mode,
struct ovl_entry *oe);
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 907870e..70e9af5 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -23,6 +23,7 @@
u64 ino;
struct list_head l_node;
struct rb_node node;
+ struct ovl_cache_entry *next_maybe_whiteout;
bool is_whiteout;
char name[];
};
@@ -39,7 +40,7 @@
struct rb_root root;
struct list_head *list;
struct list_head middle;
- struct dentry *dir;
+ struct ovl_cache_entry *first_maybe_whiteout;
int count;
int err;
};
@@ -79,7 +80,7 @@
return NULL;
}
-static struct ovl_cache_entry *ovl_cache_entry_new(struct dentry *dir,
+static struct ovl_cache_entry *ovl_cache_entry_new(struct ovl_readdir_data *rdd,
const char *name, int len,
u64 ino, unsigned int d_type)
{
@@ -98,29 +99,8 @@
p->is_whiteout = false;
if (d_type == DT_CHR) {
- struct dentry *dentry;
- const struct cred *old_cred;
- struct cred *override_cred;
-
- override_cred = prepare_creds();
- if (!override_cred) {
- kfree(p);
- return NULL;
- }
-
- /*
- * CAP_DAC_OVERRIDE for lookup
- */
- cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE);
- old_cred = override_creds(override_cred);
-
- dentry = lookup_one_len(name, dir, len);
- if (!IS_ERR(dentry)) {
- p->is_whiteout = ovl_is_whiteout(dentry);
- dput(dentry);
- }
- revert_creds(old_cred);
- put_cred(override_cred);
+ p->next_maybe_whiteout = rdd->first_maybe_whiteout;
+ rdd->first_maybe_whiteout = p;
}
return p;
}
@@ -148,7 +128,7 @@
return 0;
}
- p = ovl_cache_entry_new(rdd->dir, name, len, ino, d_type);
+ p = ovl_cache_entry_new(rdd, name, len, ino, d_type);
if (p == NULL)
return -ENOMEM;
@@ -169,7 +149,7 @@
if (p) {
list_move_tail(&p->l_node, &rdd->middle);
} else {
- p = ovl_cache_entry_new(rdd->dir, name, namelen, ino, d_type);
+ p = ovl_cache_entry_new(rdd, name, namelen, ino, d_type);
if (p == NULL)
rdd->err = -ENOMEM;
else
@@ -219,6 +199,43 @@
return ovl_fill_lower(rdd, name, namelen, offset, ino, d_type);
}
+static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
+{
+ int err;
+ struct ovl_cache_entry *p;
+ struct dentry *dentry;
+ const struct cred *old_cred;
+ struct cred *override_cred;
+
+ override_cred = prepare_creds();
+ if (!override_cred)
+ return -ENOMEM;
+
+ /*
+ * CAP_DAC_OVERRIDE for lookup
+ */
+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE);
+ old_cred = override_creds(override_cred);
+
+ err = mutex_lock_killable(&dir->d_inode->i_mutex);
+ if (!err) {
+ while (rdd->first_maybe_whiteout) {
+ p = rdd->first_maybe_whiteout;
+ rdd->first_maybe_whiteout = p->next_maybe_whiteout;
+ dentry = lookup_one_len(p->name, dir, p->len);
+ if (!IS_ERR(dentry)) {
+ p->is_whiteout = ovl_is_whiteout(dentry);
+ dput(dentry);
+ }
+ }
+ mutex_unlock(&dir->d_inode->i_mutex);
+ }
+ revert_creds(old_cred);
+ put_cred(override_cred);
+
+ return err;
+}
+
static inline int ovl_dir_read(struct path *realpath,
struct ovl_readdir_data *rdd)
{
@@ -229,7 +246,7 @@
if (IS_ERR(realfile))
return PTR_ERR(realfile);
- rdd->dir = realpath->dentry;
+ rdd->first_maybe_whiteout = NULL;
rdd->ctx.pos = 0;
do {
rdd->count = 0;
@@ -238,6 +255,10 @@
if (err >= 0)
err = rdd->err;
} while (!err && rdd->count);
+
+ if (!err && rdd->first_maybe_whiteout)
+ err = ovl_check_whiteouts(realpath->dentry, rdd);
+
fput(realfile);
return err;
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index bf8537c..7466ff3 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -273,8 +273,56 @@
}
}
+static int ovl_dentry_revalidate(struct dentry *dentry, unsigned int flags)
+{
+ struct ovl_entry *oe = dentry->d_fsdata;
+ unsigned int i;
+ int ret = 1;
+
+ for (i = 0; i < oe->numlower; i++) {
+ struct dentry *d = oe->lowerstack[i].dentry;
+
+ if (d->d_flags & DCACHE_OP_REVALIDATE) {
+ ret = d->d_op->d_revalidate(d, flags);
+ if (ret < 0)
+ return ret;
+ if (!ret) {
+ if (!(flags & LOOKUP_RCU))
+ d_invalidate(d);
+ return -ESTALE;
+ }
+ }
+ }
+ return 1;
+}
+
+static int ovl_dentry_weak_revalidate(struct dentry *dentry, unsigned int flags)
+{
+ struct ovl_entry *oe = dentry->d_fsdata;
+ unsigned int i;
+ int ret = 1;
+
+ for (i = 0; i < oe->numlower; i++) {
+ struct dentry *d = oe->lowerstack[i].dentry;
+
+ if (d->d_flags & DCACHE_OP_WEAK_REVALIDATE) {
+ ret = d->d_op->d_weak_revalidate(d, flags);
+ if (ret <= 0)
+ break;
+ }
+ }
+ return ret;
+}
+
static const struct dentry_operations ovl_dentry_operations = {
.d_release = ovl_dentry_release,
+ .d_select_inode = ovl_d_select_inode,
+};
+
+static const struct dentry_operations ovl_reval_dentry_operations = {
+ .d_release = ovl_dentry_release,
+ .d_revalidate = ovl_dentry_revalidate,
+ .d_weak_revalidate = ovl_dentry_weak_revalidate,
};
static struct ovl_entry *ovl_alloc_entry(unsigned int numlower)
@@ -288,6 +336,20 @@
return oe;
}
+static bool ovl_dentry_remote(struct dentry *dentry)
+{
+ return dentry->d_flags &
+ (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE);
+}
+
+static bool ovl_dentry_weird(struct dentry *dentry)
+{
+ return dentry->d_flags & (DCACHE_NEED_AUTOMOUNT |
+ DCACHE_MANAGE_TRANSIT |
+ DCACHE_OP_HASH |
+ DCACHE_OP_COMPARE);
+}
+
static inline struct dentry *ovl_lookup_real(struct dentry *dir,
struct qstr *name)
{
@@ -303,6 +365,10 @@
} else if (!dentry->d_inode) {
dput(dentry);
dentry = NULL;
+ } else if (ovl_dentry_weird(dentry)) {
+ dput(dentry);
+ /* Don't support traversing automounts and other weirdness */
+ dentry = ERR_PTR(-EREMOTE);
}
return dentry;
}
@@ -350,6 +416,11 @@
goto out;
if (this) {
+ if (unlikely(ovl_dentry_remote(this))) {
+ dput(this);
+ err = -EREMOTE;
+ goto out;
+ }
if (ovl_is_whiteout(this)) {
dput(this);
this = NULL;
@@ -694,25 +765,6 @@
}
}
-static bool ovl_is_allowed_fs_type(struct dentry *root)
-{
- const struct dentry_operations *dop = root->d_op;
-
- /*
- * We don't support:
- * - automount filesystems
- * - filesystems with revalidate (FIXME for lower layer)
- * - filesystems with case insensitive names
- */
- if (dop &&
- (dop->d_manage || dop->d_automount ||
- dop->d_revalidate || dop->d_weak_revalidate ||
- dop->d_compare || dop->d_hash)) {
- return false;
- }
- return true;
-}
-
static int ovl_mount_dir_noesc(const char *name, struct path *path)
{
int err = -EINVAL;
@@ -727,7 +779,7 @@
goto out;
}
err = -EINVAL;
- if (!ovl_is_allowed_fs_type(path->dentry)) {
+ if (ovl_dentry_weird(path->dentry)) {
pr_err("overlayfs: filesystem on '%s' not supported\n", name);
goto out_put;
}
@@ -751,13 +803,21 @@
if (tmp) {
ovl_unescape(tmp);
err = ovl_mount_dir_noesc(tmp, path);
+
+ if (!err)
+ if (ovl_dentry_remote(path->dentry)) {
+ pr_err("overlayfs: filesystem on '%s' not supported as upperdir\n",
+ tmp);
+ path_put(path);
+ err = -EINVAL;
+ }
kfree(tmp);
}
return err;
}
static int ovl_lower_dir(const char *name, struct path *path, long *namelen,
- int *stack_depth)
+ int *stack_depth, bool *remote)
{
int err;
struct kstatfs statfs;
@@ -774,6 +834,9 @@
*namelen = max(*namelen, statfs.f_namelen);
*stack_depth = max(*stack_depth, path->mnt->mnt_sb->s_stack_depth);
+ if (ovl_dentry_remote(path->dentry))
+ *remote = true;
+
return 0;
out_put:
@@ -827,6 +890,7 @@
unsigned int numlower;
unsigned int stacklen = 0;
unsigned int i;
+ bool remote = false;
int err;
err = -ENOMEM;
@@ -900,7 +964,8 @@
lower = lowertmp;
for (numlower = 0; numlower < stacklen; numlower++) {
err = ovl_lower_dir(lower, &stack[numlower],
- &ufs->lower_namelen, &sb->s_stack_depth);
+ &ufs->lower_namelen, &sb->s_stack_depth,
+ &remote);
if (err)
goto out_put_lowerpath;
@@ -958,7 +1023,10 @@
if (!ufs->upper_mnt)
sb->s_flags |= MS_RDONLY;
- sb->s_d_op = &ovl_dentry_operations;
+ if (remote)
+ sb->s_d_op = &ovl_reval_dentry_operations;
+ else
+ sb->s_d_op = &ovl_dentry_operations;
err = -ENOMEM;
oe = ovl_alloc_entry(numlower);
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 84bb65b8..4fb17de 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -547,51 +547,45 @@
struct posix_acl **default_acl, struct posix_acl **acl)
{
struct posix_acl *p;
+ struct posix_acl *clone;
int ret;
+ *acl = NULL;
+ *default_acl = NULL;
+
if (S_ISLNK(*mode) || !IS_POSIXACL(dir))
- goto no_acl;
+ return 0;
p = get_acl(dir, ACL_TYPE_DEFAULT);
- if (IS_ERR(p)) {
- if (p == ERR_PTR(-EOPNOTSUPP))
- goto apply_umask;
- return PTR_ERR(p);
+ if (!p || p == ERR_PTR(-EOPNOTSUPP)) {
+ *mode &= ~current_umask();
+ return 0;
}
+ if (IS_ERR(p))
+ return PTR_ERR(p);
- if (!p)
- goto apply_umask;
-
- *acl = posix_acl_clone(p, GFP_NOFS);
- if (!*acl)
+ clone = posix_acl_clone(p, GFP_NOFS);
+ if (!clone)
goto no_mem;
- ret = posix_acl_create_masq(*acl, mode);
+ ret = posix_acl_create_masq(clone, mode);
if (ret < 0)
goto no_mem_clone;
- if (ret == 0) {
- posix_acl_release(*acl);
- *acl = NULL;
- }
+ if (ret == 0)
+ posix_acl_release(clone);
+ else
+ *acl = clone;
- if (!S_ISDIR(*mode)) {
+ if (!S_ISDIR(*mode))
posix_acl_release(p);
- *default_acl = NULL;
- } else {
+ else
*default_acl = p;
- }
- return 0;
-apply_umask:
- *mode &= ~current_umask();
-no_acl:
- *default_acl = NULL;
- *acl = NULL;
return 0;
no_mem_clone:
- posix_acl_release(*acl);
+ posix_acl_release(clone);
no_mem:
posix_acl_release(p);
return -ENOMEM;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1d540b3..87782e8 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -491,14 +491,17 @@
}
#endif
-#ifdef CONFIG_SCHEDSTATS
+#ifdef CONFIG_SCHED_INFO
/*
* Provides /proc/PID/schedstat
*/
static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
- seq_printf(m, "%llu %llu %lu\n",
+ if (unlikely(!sched_info_on()))
+ seq_printf(m, "0 0 0\n");
+ else
+ seq_printf(m, "%llu %llu %lu\n",
(unsigned long long)task->se.sum_exec_runtime,
(unsigned long long)task->sched_info.run_delay,
task->sched_info.pcount);
@@ -2787,7 +2790,7 @@
#ifdef CONFIG_STACKTRACE
ONE("stack", S_IRUSR, proc_pid_stack),
#endif
-#ifdef CONFIG_SCHEDSTATS
+#ifdef CONFIG_SCHED_INFO
ONE("schedstat", S_IRUGO, proc_pid_schedstat),
#endif
#ifdef CONFIG_LATENCYTOP
@@ -3135,7 +3138,7 @@
#ifdef CONFIG_STACKTRACE
ONE("stack", S_IRUSR, proc_pid_stack),
#endif
-#ifdef CONFIG_SCHEDSTATS
+#ifdef CONFIG_SCHED_INFO
ONE("schedstat", S_IRUGO, proc_pid_schedstat),
#endif
#ifdef CONFIG_LATENCYTOP
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index df6327a..e5dee5c 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -373,6 +373,10 @@
WARN(1, "create '/proc/%s' by hand\n", qstr.name);
return NULL;
}
+ if (is_empty_pde(*parent)) {
+ WARN(1, "attempt to add to permanently empty directory");
+ return NULL;
+ }
ent = kzalloc(sizeof(struct proc_dir_entry) + qstr.len + 1, GFP_KERNEL);
if (!ent)
@@ -455,6 +459,25 @@
}
EXPORT_SYMBOL(proc_mkdir);
+struct proc_dir_entry *proc_create_mount_point(const char *name)
+{
+ umode_t mode = S_IFDIR | S_IRUGO | S_IXUGO;
+ struct proc_dir_entry *ent, *parent = NULL;
+
+ ent = __proc_create(&parent, name, mode, 2);
+ if (ent) {
+ ent->data = NULL;
+ ent->proc_fops = NULL;
+ ent->proc_iops = NULL;
+ if (proc_register(parent, ent) < 0) {
+ kfree(ent);
+ parent->nlink--;
+ ent = NULL;
+ }
+ }
+ return ent;
+}
+
struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
struct proc_dir_entry *parent,
const struct file_operations *proc_fops,
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index afe232b..bd95b9f 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -422,6 +422,10 @@
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
PROC_I(inode)->pde = de;
+ if (is_empty_pde(de)) {
+ make_empty_dir_inode(inode);
+ return inode;
+ }
if (de->mode) {
inode->i_mode = de->mode;
inode->i_uid = de->uid;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index c835b94..aa27810 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -191,6 +191,12 @@
}
extern void pde_put(struct proc_dir_entry *);
+static inline bool is_empty_pde(const struct proc_dir_entry *pde)
+{
+ return S_ISDIR(pde->mode) && !pde->proc_iops;
+}
+struct proc_dir_entry *proc_create_mount_point(const char *name);
+
/*
* inode.c
*/
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index d4a3574..f8595e8 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -64,7 +64,7 @@
if (file) {
seq_pad(m, ' ');
- seq_path(m, &file->f_path, "");
+ seq_file_path(m, file, "");
}
seq_putc(m, '\n');
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index fea2561..fdda62e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -19,6 +19,28 @@
static const struct file_operations proc_sys_dir_file_operations;
static const struct inode_operations proc_sys_dir_operations;
+/* Support for permanently empty directories */
+
+struct ctl_table sysctl_mount_point[] = {
+ { }
+};
+
+static bool is_empty_dir(struct ctl_table_header *head)
+{
+ return head->ctl_table[0].child == sysctl_mount_point;
+}
+
+static void set_empty_dir(struct ctl_dir *dir)
+{
+ dir->header.ctl_table[0].child = sysctl_mount_point;
+}
+
+static void clear_empty_dir(struct ctl_dir *dir)
+
+{
+ dir->header.ctl_table[0].child = NULL;
+}
+
void proc_sys_poll_notify(struct ctl_table_poll *poll)
{
if (!poll)
@@ -187,6 +209,17 @@
struct ctl_table *entry;
int err;
+ /* Is this a permanently empty directory? */
+ if (is_empty_dir(&dir->header))
+ return -EROFS;
+
+ /* Am I creating a permanently empty directory? */
+ if (header->ctl_table == sysctl_mount_point) {
+ if (!RB_EMPTY_ROOT(&dir->root))
+ return -EINVAL;
+ set_empty_dir(dir);
+ }
+
dir->header.nreg++;
header->parent = dir;
err = insert_links(header);
@@ -202,6 +235,8 @@
erase_header(header);
put_links(header);
fail_links:
+ if (header->ctl_table == sysctl_mount_point)
+ clear_empty_dir(dir);
header->parent = NULL;
drop_sysctl_table(&dir->header);
return err;
@@ -419,6 +454,8 @@
inode->i_mode |= S_IFDIR;
inode->i_op = &proc_sys_dir_operations;
inode->i_fop = &proc_sys_dir_file_operations;
+ if (is_empty_dir(head))
+ make_empty_dir_inode(inode);
}
out:
return inode;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index b7fa4bf..68feb0f 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -112,9 +112,6 @@
ns = task_active_pid_ns(current);
options = data;
- if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
- return ERR_PTR(-EPERM);
-
/* Does the mounter have privilege over the pid namespace? */
if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
return ERR_PTR(-EPERM);
@@ -159,7 +156,7 @@
.name = "proc",
.mount = proc_mount,
.kill_sb = proc_kill_sb,
- .fs_flags = FS_USERNS_MOUNT,
+ .fs_flags = FS_USERNS_VISIBLE | FS_USERNS_MOUNT,
};
void __init proc_root_init(void)
@@ -182,10 +179,10 @@
#endif
proc_mkdir("fs", NULL);
proc_mkdir("driver", NULL);
- proc_mkdir("fs/nfsd", NULL); /* somewhere for the nfsd filesystem to be mounted */
+ proc_create_mount_point("fs/nfsd"); /* somewhere for the nfsd filesystem to be mounted */
#if defined(CONFIG_SUN_OPENPROMFS) || defined(CONFIG_SUN_OPENPROMFS_MODULE)
/* just give it a mountpoint */
- proc_mkdir("openprom", NULL);
+ proc_create_mount_point("openprom");
#endif
proc_tty_init();
proc_mkdir("bus", NULL);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 6dee68d..ca1e091 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -310,7 +310,7 @@
*/
if (file) {
seq_pad(m, ' ');
- seq_path(m, &file->f_path, "\n");
+ seq_file_path(m, file, "\n");
goto done;
}
@@ -1509,7 +1509,7 @@
if (file) {
seq_puts(m, " file=");
- seq_path(m, &file->f_path, "\n\t= ");
+ seq_file_path(m, file, "\n\t= ");
} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
seq_puts(m, " heap");
} else {
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 599ec2e..e0d64c9 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -180,7 +180,7 @@
if (file) {
seq_pad(m, ' ');
- seq_path(m, &file->f_path, "");
+ seq_file_path(m, file, "");
} else if (mm) {
pid_t tid = pid_of_stack(priv, vma, is_pid);
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index dc43b5f..3adcc46 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -461,22 +461,18 @@
.kill_sb = pstore_kill_sb,
};
-static struct kobject *pstore_kobj;
-
static int __init init_pstore_fs(void)
{
- int err = 0;
+ int err;
/* Create a convenient mount point for people to access pstore */
- pstore_kobj = kobject_create_and_add("pstore", fs_kobj);
- if (!pstore_kobj) {
- err = -ENOMEM;
+ err = sysfs_create_mount_point(fs_kobj, "pstore");
+ if (err)
goto out;
- }
err = register_filesystem(&pstore_fs_type);
if (err < 0)
- kobject_put(pstore_kobj);
+ sysfs_remove_mount_point(fs_kobj, "pstore");
out:
return err;
diff --git a/fs/qnx6/dir.c b/fs/qnx6/dir.c
index 8d64bb5..e1f3727 100644
--- a/fs/qnx6/dir.c
+++ b/fs/qnx6/dir.c
@@ -32,11 +32,6 @@
return page;
}
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
static unsigned last_entry(struct inode *inode, unsigned long page_nr)
{
unsigned long last_byte = inode->i_size;
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 1d9c1cb..ce9e39f 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -490,6 +490,20 @@
}
EXPORT_SYMBOL(seq_path);
+/**
+ * seq_file_path - seq_file interface to print a pathname of a file
+ * @m: the seq_file handle
+ * @file: the struct file to print
+ * @esc: set of characters to escape in the output
+ *
+ * return the absolute path to the file.
+ */
+int seq_file_path(struct seq_file *m, struct file *file, const char *esc)
+{
+ return seq_path(m, &file->f_path, esc);
+}
+EXPORT_SYMBOL(seq_file_path);
+
/*
* Same as seq_path, but relative to supplied root.
*/
diff --git a/fs/squashfs/squashfs_fs_i.h b/fs/squashfs/squashfs_fs_i.h
index 73588e7..d09fcd6 100644
--- a/fs/squashfs/squashfs_fs_i.h
+++ b/fs/squashfs/squashfs_fs_i.h
@@ -49,6 +49,6 @@
static inline struct squashfs_inode_info *squashfs_i(struct inode *inode)
{
- return list_entry(inode, struct squashfs_inode_info, vfs_inode);
+ return container_of(inode, struct squashfs_inode_info, vfs_inode);
}
#endif
diff --git a/fs/super.c b/fs/super.c
index 928c20f..b613723 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -842,7 +842,7 @@
else if (error)
return -EAGAIN;
- if (dev == (1 << MINORBITS)) {
+ if (dev >= (1 << MINORBITS)) {
spin_lock(&unnamed_dev_lock);
ida_remove(&unnamed_dev_ida, dev);
if (unnamed_dev_start > dev)
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 0b45ff4..94374e4 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -121,3 +121,37 @@
return kernfs_rename_ns(kn, new_parent, kn->name, new_ns);
}
+
+/**
+ * sysfs_create_mount_point - create an always empty directory
+ * @parent_kobj: kobject that will contain this always empty directory
+ * @name: The name of the always empty directory to add
+ */
+int sysfs_create_mount_point(struct kobject *parent_kobj, const char *name)
+{
+ struct kernfs_node *kn, *parent = parent_kobj->sd;
+
+ kn = kernfs_create_empty_dir(parent, name);
+ if (IS_ERR(kn)) {
+ if (PTR_ERR(kn) == -EEXIST)
+ sysfs_warn_dup(parent, name);
+ return PTR_ERR(kn);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(sysfs_create_mount_point);
+
+/**
+ * sysfs_remove_mount_point - remove an always empty directory.
+ * @parent_kobj: kobject that will contain this always empty directory
+ * @name: The name of the always empty directory to remove
+ *
+ */
+void sysfs_remove_mount_point(struct kobject *parent_kobj, const char *name)
+{
+ struct kernfs_node *parent = parent_kobj->sd;
+
+ kernfs_remove_by_name_ns(parent, name, NULL);
+}
+EXPORT_SYMBOL_GPL(sysfs_remove_mount_point);
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 8a49486..1c6ac6f 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -31,9 +31,6 @@
bool new_sb;
if (!(flags & MS_KERNMOUNT)) {
- if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
- return ERR_PTR(-EPERM);
-
if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
return ERR_PTR(-EPERM);
}
@@ -58,7 +55,7 @@
.name = "sysfs",
.mount = sysfs_mount,
.kill_sb = sysfs_kill_sb,
- .fs_flags = FS_USERNS_MOUNT,
+ .fs_flags = FS_USERNS_VISIBLE | FS_USERNS_MOUNT,
};
int __init sysfs_init(void)
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index 8f3555f..63c1bcb 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -33,11 +33,6 @@
page_cache_release(page);
}
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
{
struct address_space *mapping = page->mapping;
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 2c13525..6c21228 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -73,7 +73,7 @@
static inline struct sysv_inode_info *SYSV_I(struct inode *inode)
{
- return list_entry(inode, struct sysv_inode_info, vfs_inode);
+ return container_of(inode, struct sysv_inode_info, vfs_inode);
}
static inline struct sysv_sb_info *SYSV_SB(struct super_block *sb)
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index d92bdf3..cbc8d5d 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -496,16 +496,11 @@
return dentry;
}
-static inline int tracefs_positive(struct dentry *dentry)
-{
- return dentry->d_inode && !d_unhashed(dentry);
-}
-
static int __tracefs_remove(struct dentry *dentry, struct dentry *parent)
{
int ret = 0;
- if (tracefs_positive(dentry)) {
+ if (simple_positive(dentry)) {
if (dentry->d_inode) {
dget(dentry);
switch (dentry->d_inode->i_mode & S_IFMT) {
@@ -582,7 +577,7 @@
*/
spin_lock(&parent->d_lock);
list_for_each_entry(child, &parent->d_subdirs, d_child) {
- if (!tracefs_positive(child))
+ if (!simple_positive(child))
continue;
/* perhaps simple_empty(child) makes more sense */
@@ -603,7 +598,7 @@
* from d_subdirs. When releasing the parent->d_lock we can
* no longer trust that the next pointer is valid.
* Restart the loop. We'll skip this one with the
- * tracefs_positive() check.
+ * simple_positive() check.
*/
goto loop;
}
@@ -631,14 +626,12 @@
return tracefs_registered;
}
-static struct kobject *trace_kobj;
-
static int __init tracefs_init(void)
{
int retval;
- trace_kobj = kobject_create_and_add("tracing", kernel_kobj);
- if (!trace_kobj)
+ retval = sysfs_create_mount_point(kernel_kobj, "tracing");
+ if (retval)
return -EINVAL;
retval = register_filesystem(&trace_fs_type);
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index b5cd8ed..b1b9a63 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -56,7 +56,7 @@
static inline struct udf_inode_info *UDF_I(struct inode *inode)
{
- return list_entry(inode, struct udf_inode_info, vfs_inode);
+ return container_of(inode, struct udf_inode_info, vfs_inode);
}
#endif /* _UDF_I_H) */
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 2c10360..a7106ed 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -51,8 +51,8 @@
if (ufs_fragnum(fragment) + count > uspi->s_fpg)
ufs_error (sb, "ufs_free_fragments", "internal error");
-
- lock_ufs(sb);
+
+ mutex_lock(&UFS_SB(sb)->s_lock);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
@@ -115,13 +115,13 @@
if (sb->s_flags & MS_SYNCHRONOUS)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
-
- unlock_ufs(sb);
+
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed:
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return;
}
@@ -151,7 +151,7 @@
goto failed;
}
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
do_more:
overflow = 0;
@@ -211,12 +211,12 @@
}
ufs_mark_sb_dirty(sb);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed_unlock:
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
failed:
UFSD("EXIT (FAILED)\n");
return;
@@ -357,7 +357,7 @@
usb1 = ubh_get_usb_first(uspi);
*err = -ENOSPC;
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@@ -378,19 +378,19 @@
"fragment %llu, tmp %llu\n",
(unsigned long long)fragment,
(unsigned long long)tmp);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return INVBLOCK;
}
if (fragment < UFS_I(inode)->i_lastfrag) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
else {
if (tmp) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
@@ -399,7 +399,7 @@
* There is not enough space for user on the device
*/
if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}
@@ -424,7 +424,7 @@
ufs_clear_frags(inode, result + oldcount,
newcount - oldcount, locked_page != NULL);
}
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -439,7 +439,7 @@
fragment + count);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -477,7 +477,7 @@
*err = 0;
UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
fragment + count);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
ufs_free_fragments (inode, tmp, oldcount);
@@ -485,7 +485,7 @@
return result;
}
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 1bfe8ca..74f2e80 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -65,11 +65,6 @@
page_cache_release(page);
}
-static inline unsigned long ufs_dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
ino_t ufs_inode_by_name(struct inode *dir, const struct qstr *qstr)
{
ino_t res = 0;
@@ -87,7 +82,8 @@
/* Releases the page */
void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
- struct page *page, struct inode *inode)
+ struct page *page, struct inode *inode,
+ bool update_times)
{
loff_t pos = page_offset(page) +
(char *) de - (char *) page_address(page);
@@ -103,7 +99,8 @@
err = ufs_commit_chunk(page, pos, len);
ufs_put_page(page);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
+ if (update_times)
+ dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(dir);
}
@@ -256,7 +253,7 @@
int namelen = qstr->len;
unsigned reclen = UFS_DIR_REC_LEN(namelen);
unsigned long start, n;
- unsigned long npages = ufs_dir_pages(dir);
+ unsigned long npages = dir_pages(dir);
struct page *page = NULL;
struct ufs_inode_info *ui = UFS_I(dir);
struct ufs_dir_entry *de;
@@ -320,7 +317,7 @@
unsigned short rec_len, name_len;
struct page *page = NULL;
struct ufs_dir_entry *de;
- unsigned long npages = ufs_dir_pages(dir);
+ unsigned long npages = dir_pages(dir);
unsigned long n;
char *kaddr;
loff_t pos;
@@ -437,7 +434,7 @@
struct super_block *sb = inode->i_sb;
unsigned int offset = pos & ~PAGE_CACHE_MASK;
unsigned long n = pos >> PAGE_CACHE_SHIFT;
- unsigned long npages = ufs_dir_pages(inode);
+ unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
int need_revalidate = file->f_version != inode->i_version;
unsigned flags = UFS_SB(sb)->s_flags;
@@ -608,7 +605,7 @@
{
struct super_block *sb = inode->i_sb;
struct page *page = NULL;
- unsigned long i, npages = ufs_dir_pages(inode);
+ unsigned long i, npages = dir_pages(inode);
for (i = 0; i < npages; i++) {
char *kaddr;
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 7caa016..fd0203c 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -69,11 +69,11 @@
ino = inode->i_ino;
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
@@ -81,7 +81,7 @@
bit = ufs_inotocgoff (ino);
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@@ -115,7 +115,7 @@
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
}
@@ -193,7 +193,7 @@
sbi = UFS_SB(sb);
uspi = sbi->s_uspi;
- lock_ufs(sb);
+ mutex_lock(&sbi->s_lock);
/*
* Try to place the inode in its parent directory
@@ -331,21 +331,21 @@
sync_dirty_buffer(bh);
brelse(bh);
}
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
clear_nlink(inode);
unlock_new_inode(inode);
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED): err %d\n", err);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 99aaf5c..f913a69 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -903,6 +903,9 @@
invalidate_inode_buffers(inode);
clear_inode(inode);
- if (want_delete)
+ if (want_delete) {
+ lock_ufs(inode->i_sb);
ufs_free_inode(inode);
+ unlock_ufs(inode->i_sb);
+ }
}
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index f773deb..4796655 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -56,11 +56,9 @@
if (dentry->d_name.len > UFS_MAXNAMLEN)
return ERR_PTR(-ENAMETOOLONG);
- lock_ufs(dir->i_sb);
ino = ufs_inode_by_name(dir, &dentry->d_name);
if (ino)
inode = ufs_iget(dir->i_sb, ino);
- unlock_ufs(dir->i_sb);
return d_splice_alias(inode, dentry);
}
@@ -76,24 +74,16 @@
bool excl)
{
struct inode *inode;
- int err;
-
- UFSD("BEGIN\n");
inode = ufs_new_inode(dir, mode);
- err = PTR_ERR(inode);
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- inode->i_op = &ufs_file_inode_operations;
- inode->i_fop = &ufs_file_operations;
- inode->i_mapping->a_ops = &ufs_aops;
- mark_inode_dirty(inode);
- lock_ufs(dir->i_sb);
- err = ufs_add_nondir(dentry, inode);
- unlock_ufs(dir->i_sb);
- }
- UFSD("END: err=%d\n", err);
- return err;
+ inode->i_op = &ufs_file_inode_operations;
+ inode->i_fop = &ufs_file_operations;
+ inode->i_mapping->a_ops = &ufs_aops;
+ mark_inode_dirty(inode);
+ return ufs_add_nondir(dentry, inode);
}
static int ufs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
@@ -110,9 +100,7 @@
init_special_inode(inode, mode, rdev);
ufs_set_inode_dev(inode->i_sb, UFS_I(inode), rdev);
mark_inode_dirty(inode);
- lock_ufs(dir->i_sb);
err = ufs_add_nondir(dentry, inode);
- unlock_ufs(dir->i_sb);
}
return err;
}
@@ -121,19 +109,18 @@
const char * symname)
{
struct super_block * sb = dir->i_sb;
- int err = -ENAMETOOLONG;
+ int err;
unsigned l = strlen(symname)+1;
struct inode * inode;
if (l > sb->s_blocksize)
- goto out_notlocked;
+ return -ENAMETOOLONG;
inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
err = PTR_ERR(inode);
if (IS_ERR(inode))
- goto out_notlocked;
+ return err;
- lock_ufs(dir->i_sb);
if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
/* slow symlink */
inode->i_op = &ufs_symlink_inode_operations;
@@ -150,17 +137,13 @@
}
mark_inode_dirty(inode);
- err = ufs_add_nondir(dentry, inode);
-out:
- unlock_ufs(dir->i_sb);
-out_notlocked:
- return err;
+ return ufs_add_nondir(dentry, inode);
out_fail:
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput(inode);
- goto out;
+ return err;
}
static int ufs_link (struct dentry * old_dentry, struct inode * dir,
@@ -169,14 +152,16 @@
struct inode *inode = d_inode(old_dentry);
int error;
- lock_ufs(dir->i_sb);
-
inode->i_ctime = CURRENT_TIME_SEC;
inode_inc_link_count(inode);
ihold(inode);
- error = ufs_add_nondir(dentry, inode);
- unlock_ufs(dir->i_sb);
+ error = ufs_add_link(dentry, inode);
+ if (error) {
+ inode_dec_link_count(inode);
+ iput(inode);
+ } else
+ d_instantiate(dentry, inode);
return error;
}
@@ -185,9 +170,12 @@
struct inode * inode;
int err;
+ inode_inc_link_count(dir);
+
inode = ufs_new_inode(dir, S_IFDIR|mode);
+ err = PTR_ERR(inode);
if (IS_ERR(inode))
- return PTR_ERR(inode);
+ goto out_dir;
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
@@ -195,9 +183,6 @@
inode_inc_link_count(inode);
- lock_ufs(dir->i_sb);
- inode_inc_link_count(dir);
-
err = ufs_make_empty(inode, dir);
if (err)
goto out_fail;
@@ -205,20 +190,19 @@
err = ufs_add_link(dentry, inode);
if (err)
goto out_fail;
- unlock_ufs(dir->i_sb);
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
-out:
- return err;
+ return 0;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput (inode);
+out_dir:
inode_dec_link_count(dir);
- unlock_ufs(dir->i_sb);
- goto out;
+ return err;
}
static int ufs_unlink(struct inode *dir, struct dentry *dentry)
@@ -248,7 +232,6 @@
struct inode * inode = d_inode(dentry);
int err= -ENOTEMPTY;
- lock_ufs(dir->i_sb);
if (ufs_empty_dir (inode)) {
err = ufs_unlink(dir, dentry);
if (!err) {
@@ -257,7 +240,6 @@
inode_dec_link_count(dir);
}
}
- unlock_ufs(dir->i_sb);
return err;
}
@@ -295,7 +277,7 @@
new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_page);
if (!new_de)
goto out_dir;
- ufs_set_link(new_dir, new_de, new_page, old_inode);
+ ufs_set_link(new_dir, new_de, new_page, old_inode, 1);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
drop_nlink(new_inode);
@@ -318,7 +300,12 @@
mark_inode_dirty(old_inode);
if (dir_de) {
- ufs_set_link(old_inode, dir_de, dir_page, new_dir);
+ if (old_dir != new_dir)
+ ufs_set_link(old_inode, dir_de, dir_page, new_dir, 0);
+ else {
+ kunmap(dir_page);
+ page_cache_release(dir_page);
+ }
inode_dec_link_count(old_dir);
}
return 0;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 098508a..250579a 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -695,6 +695,7 @@
unsigned flags;
lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
UFSD("ENTER\n");
@@ -712,6 +713,7 @@
ufs_put_cstotal(sb);
UFSD("EXIT\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
@@ -800,6 +802,7 @@
UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
mutex_init(&sbi->mutex);
+ mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
/*
@@ -1278,6 +1281,7 @@
sync_filesystem(sb);
lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
usb1 = ubh_get_usb_first(uspi);
@@ -1291,6 +1295,7 @@
new_mount_opt = 0;
ufs_set_opt (new_mount_opt, ONERROR_LOCK);
if (!ufs_parse_options (data, &new_mount_opt)) {
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
@@ -1298,12 +1303,14 @@
new_mount_opt |= ufstype;
} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
pr_err("ufstype can't be changed during remount\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
@@ -1327,6 +1334,7 @@
*/
#ifndef CONFIG_UFS_FS_WRITE
pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
#else
@@ -1336,11 +1344,13 @@
ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
pr_err("this ufstype is read-only supported\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if (!ufs_read_cylinder_structures(sb)) {
pr_err("failed during remounting\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EPERM;
}
@@ -1348,6 +1358,7 @@
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 2a07396..2e31ea2 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -30,6 +30,7 @@
int work_queued; /* non-zero if the delayed work is queued */
struct delayed_work sync_work; /* FS sync delayed work */
spinlock_t work_lock; /* protects sync_work and work_queued */
+ struct mutex s_lock;
};
struct ufs_inode_info {
@@ -105,7 +106,7 @@
extern int ufs_empty_dir (struct inode *);
extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
- struct page *page, struct inode *inode);
+ struct page *page, struct inode *inode, bool update_times);
/* file.c */
extern const struct inode_operations ufs_file_inode_operations;
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 874507d..f0e8249 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -577,6 +577,13 @@
if (error)
return error;
+ /* For changing security info in file_remove_privs() we need i_mutex */
+ if (*iolock == XFS_IOLOCK_SHARED && !IS_NOSEC(inode)) {
+ xfs_rw_iunlock(ip, *iolock);
+ *iolock = XFS_IOLOCK_EXCL;
+ xfs_rw_ilock(ip, *iolock);
+ goto restart;
+ }
/*
* If the offset is beyond the size of the file, we need to zero any
* blocks that fall between the existing EOF and the start of this
@@ -637,7 +644,9 @@
* setgid bits if the process is not being run by root. This keeps
* people from modifying setuid and setgid binaries.
*/
- return file_remove_suid(file);
+ if (!IS_NOSEC(inode))
+ return file_remove_privs(file);
+ return 0;
}
/*
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index 273de70..b52c0dc 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -51,6 +51,7 @@
#define METHOD_NAME__BBN "_BBN"
#define METHOD_NAME__CBA "_CBA"
#define METHOD_NAME__CID "_CID"
+#define METHOD_NAME__CLS "_CLS"
#define METHOD_NAME__CRS "_CRS"
#define METHOD_NAME__DDN "_DDN"
#define METHOD_NAME__HID "_HID"
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index a8f3443..f56de8c 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -294,8 +294,12 @@
/* DEBUG_PRINT functions */
-#define ACPI_DEBUG_PRINT(plist) ACPI_ACTUAL_DEBUG plist
-#define ACPI_DEBUG_PRINT_RAW(plist) ACPI_ACTUAL_DEBUG_RAW plist
+#ifndef COMPILER_VA_MACRO
+
+#define ACPI_DEBUG_PRINT(plist) acpi_debug_print plist
+#define ACPI_DEBUG_PRINT_RAW(plist) acpi_debug_print_raw plist
+
+#else
/* Helper macros for DEBUG_PRINT */
@@ -315,6 +319,11 @@
ACPI_DO_DEBUG_PRINT (acpi_debug_print_raw, level, line, \
filename, modulename, component, __VA_ARGS__)
+#define ACPI_DEBUG_PRINT(plist) ACPI_ACTUAL_DEBUG plist
+#define ACPI_DEBUG_PRINT_RAW(plist) ACPI_ACTUAL_DEBUG_RAW plist
+
+#endif
+
/*
* Function entry tracing
*
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index d68f1cd..e8ec18a 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20150515
+#define ACPI_CA_VERSION 0x20150619
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
@@ -195,9 +195,18 @@
* address. Although ACPICA adheres to the ACPI specification which
* requires the use of the corresponding 64-bit address if it is non-zero,
* some machines have been found to have a corrupted non-zero 64-bit
- * address. Default is TRUE, favor the 32-bit addresses.
+ * address. Default is FALSE, do not favor the 32-bit addresses.
*/
-ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
+
+/*
+ * Optionally use 32-bit FACS table addresses.
+ * It is reported that some platforms fail to resume from system suspending
+ * if 64-bit FACS table address is selected:
+ * https://bugzilla.kernel.org/show_bug.cgi?id=74021
+ * Default is TRUE, favor the 32-bit addresses.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_facs_addresses, TRUE);
/*
* Optionally truncate I/O addresses to 16 bits. Provides compatibility
@@ -220,6 +229,11 @@
ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_install, FALSE);
/*
+ * Optionally enable runtime namespace override.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_runtime_namespace_override, TRUE);
+
+/*
* We keep track of the latest version of Windows that has been requested by
* the BIOS. ACPI 5.0.
*/
@@ -814,8 +828,12 @@
ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_leave_sleep_state(u8 sleep_state))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
- acpi_set_firmware_waking_vector(u32
- physical_address))
+ acpi_set_firmware_waking_vectors
+ (acpi_physical_address physical_address,
+ acpi_physical_address physical_address64))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
+ acpi_set_firmware_waking_vector(u32
+ physical_address))
#if ACPI_MACHINE_WIDTH == 64
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
acpi_set_firmware_waking_vector64(u64
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index cb8a6b9..2d5faf5 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -65,6 +65,7 @@
#define ACPI_SIG_DSDT "DSDT" /* Differentiated System Description Table */
#define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
#define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */
+#define ACPI_SIG_OSDT "OSDT" /* Override System Description Table */
#define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */
#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
#define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 06b61f0..fcd5709 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -835,6 +835,17 @@
u8 reserved2[3]; /* reserved - must be zero */
};
+/* Values for Version field above */
+
+enum acpi_madt_gic_version {
+ ACPI_MADT_GIC_VERSION_NONE = 0,
+ ACPI_MADT_GIC_VERSION_V1 = 1,
+ ACPI_MADT_GIC_VERSION_V2 = 2,
+ ACPI_MADT_GIC_VERSION_V3 = 3,
+ ACPI_MADT_GIC_VERSION_V4 = 4,
+ ACPI_MADT_GIC_VERSION_RESERVED = 5 /* 5 and greater are reserved */
+};
+
/* 13: Generic MSI Frame (ACPI 5.1) */
struct acpi_madt_generic_msi_frame {
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 370d69d..a948fc5 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -51,8 +51,8 @@
* These tables are not consumed directly by the ACPICA subsystem, but are
* included here to support device drivers and the AML disassembler.
*
- * The tables in this file are defined by third-party specifications, and are
- * not defined directly by the ACPI specification itself.
+ * Generally, the tables in this file are defined by third-party specifications,
+ * and are not defined directly by the ACPI specification itself.
*
******************************************************************************/
@@ -80,6 +80,7 @@
#define ACPI_SIG_SPCR "SPCR" /* Serial Port Console Redirection table */
#define ACPI_SIG_SPMI "SPMI" /* Server Platform Management Interface table */
#define ACPI_SIG_TCPA "TCPA" /* Trusted Computing Platform Alliance table */
+#define ACPI_SIG_TPM2 "TPM2" /* Trusted Platform Module 2.0 H/W interface table */
#define ACPI_SIG_UEFI "UEFI" /* Uefi Boot Optimization Table */
#define ACPI_SIG_VRTC "VRTC" /* Virtual Real Time Clock Table */
#define ACPI_SIG_WAET "WAET" /* Windows ACPI Emulated devices Table */
@@ -1179,20 +1180,85 @@
/*******************************************************************************
*
* TCPA - Trusted Computing Platform Alliance table
- * Version 1
+ * Version 2
*
- * Conforms to "TCG PC Specific Implementation Specification",
- * Version 1.1, August 18, 2003
+ * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
+ * December 19, 2014
+ *
+ * NOTE: There are two versions of the table with the same signature --
+ * the client version and the server version.
*
******************************************************************************/
-struct acpi_table_tcpa {
+struct acpi_table_tcpa_client {
struct acpi_table_header header; /* Common ACPI table header */
- u16 reserved;
- u32 max_log_length; /* Maximum length for the event log area */
+ u16 platform_class;
+ u32 minimum_log_length; /* Minimum length for the event log area */
u64 log_address; /* Address of the event log area */
};
+struct acpi_table_tcpa_server {
+ struct acpi_table_header header; /* Common ACPI table header */
+ u16 platform_class;
+ u16 reserved;
+ u64 minimum_log_length; /* Minimum length for the event log area */
+ u64 log_address; /* Address of the event log area */
+ u16 spec_revision;
+ u8 device_flags;
+ u8 interrupt_flags;
+ u8 gpe_number;
+ u8 reserved2[3];
+ u32 global_interrupt;
+ struct acpi_generic_address address;
+ u32 reserved3;
+ struct acpi_generic_address config_address;
+ u8 group;
+ u8 bus; /* PCI Bus/Segment/Function numbers */
+ u8 device;
+ u8 function;
+};
+
+/* Values for device_flags above */
+
+#define ACPI_TCPA_PCI_DEVICE (1)
+#define ACPI_TCPA_BUS_PNP (1<<1)
+#define ACPI_TCPA_ADDRESS_VALID (1<<2)
+
+/* Values for interrupt_flags above */
+
+#define ACPI_TCPA_INTERRUPT_MODE (1)
+#define ACPI_TCPA_INTERRUPT_POLARITY (1<<1)
+#define ACPI_TCPA_SCI_VIA_GPE (1<<2)
+#define ACPI_TCPA_GLOBAL_INTERRUPT (1<<3)
+
+/*******************************************************************************
+ *
+ * TPM2 - Trusted Platform Module (TPM) 2.0 Hardware Interface Table
+ * Version 4
+ *
+ * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
+ * December 19, 2014
+ *
+ ******************************************************************************/
+
+struct acpi_table_tpm2 {
+ struct acpi_table_header header; /* Common ACPI table header */
+ u16 platform_class;
+ u16 reserved;
+ u64 control_address;
+ u32 start_method;
+
+ /* Platform-specific data follows */
+};
+
+/* Values for start_method above */
+
+#define ACPI_TPM2_NOT_ALLOWED 0
+#define ACPI_TPM2_START_METHOD 2
+#define ACPI_TPM2_MEMORY_MAPPED 6
+#define ACPI_TPM2_COMMAND_BUFFER 7
+#define ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD 8
+
/*******************************************************************************
*
* UEFI - UEFI Boot optimization Table
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 4018986..1df8916 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -51,7 +51,8 @@
* These tables are not consumed directly by the ACPICA subsystem, but are
* included here to support device drivers and the AML disassembler.
*
- * The tables in this file are fully defined within the ACPI specification.
+ * In general, the tables in this file are fully defined within the ACPI
+ * specification.
*
******************************************************************************/
@@ -69,7 +70,6 @@
#define ACPI_SIG_PMTT "PMTT" /* Platform Memory Topology Table */
#define ACPI_SIG_RASF "RASF" /* RAS Feature table */
#define ACPI_SIG_STAO "STAO" /* Status Override table */
-#define ACPI_SIG_TPM2 "TPM2" /* Trusted Platform Module 2.0 H/W interface table */
#define ACPI_SIG_WPBT "WPBT" /* Windows Platform Binary Table */
#define ACPI_SIG_XENV "XENV" /* Xen Environment table */
@@ -722,36 +722,6 @@
/*******************************************************************************
*
- * TPM2 - Trusted Platform Module (TPM) 2.0 Hardware Interface Table
- * Version 3
- *
- * Conforms to "TPM 2.0 Hardware Interface Table (TPM2)" 29 November 2011
- *
- ******************************************************************************/
-
-struct acpi_table_tpm2 {
- struct acpi_table_header header; /* Common ACPI table header */
- u32 flags;
- u64 control_address;
- u32 start_method;
-};
-
-/* Control area structure (not part of table, pointed to by control_address) */
-
-struct acpi_tpm2_control {
- u32 reserved;
- u32 error;
- u32 cancel;
- u32 start;
- u64 interrupt_control;
- u32 command_size;
- u64 command_address;
- u32 response_size;
- u64 response_address;
-};
-
-/*******************************************************************************
- *
* WPBT - Windows Platform Environment Table (ACPI 6.0)
* Version 1
*
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 63fd7f5..c2a41d2 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -542,14 +542,14 @@
#define ACPI_COMPARE_NAME(a,b) (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
#define ACPI_MOVE_NAME(dest,src) (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src)))
#else
-#define ACPI_COMPARE_NAME(a,b) (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
-#define ACPI_MOVE_NAME(dest,src) (ACPI_STRNCPY (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
+#define ACPI_COMPARE_NAME(a,b) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
+#define ACPI_MOVE_NAME(dest,src) (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
#endif
/* Support for the special RSDP signature (8 characters) */
-#define ACPI_VALIDATE_RSDP_SIG(a) (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
-#define ACPI_MAKE_RSDP_SIG(dest) (ACPI_MEMCPY (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
+#define ACPI_VALIDATE_RSDP_SIG(a) (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
+#define ACPI_MAKE_RSDP_SIG(dest) (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
/*******************************************************************************
*
@@ -568,6 +568,7 @@
#define ACPI_NO_ACPI_ENABLE 0x10
#define ACPI_NO_DEVICE_INIT 0x20
#define ACPI_NO_OBJECT_INIT 0x40
+#define ACPI_NO_FACS_INIT 0x80
/*
* Initialization state
@@ -1140,6 +1141,10 @@
#define ACPI_UUID_LENGTH 16
+/* Length of 3-byte PCI class code values when converted back to a string */
+
+#define ACPI_PCICLS_STRING_SIZE 7 /* Includes null terminator */
+
/* Structures used for device/processor HID, UID, CID, and SUB */
struct acpi_pnp_device_id {
@@ -1162,7 +1167,7 @@
u32 name; /* ACPI object Name */
acpi_object_type type; /* ACPI object Type */
u8 param_count; /* If a method, required parameter count */
- u8 valid; /* Indicates which optional fields are valid */
+ u16 valid; /* Indicates which optional fields are valid */
u8 flags; /* Miscellaneous info */
u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */
u8 lowest_dstates[5]; /* _sx_w values: 0xFF indicates not valid */
@@ -1171,6 +1176,7 @@
struct acpi_pnp_device_id hardware_id; /* _HID value */
struct acpi_pnp_device_id unique_id; /* _UID value */
struct acpi_pnp_device_id subsystem_id; /* _SUB value */
+ struct acpi_pnp_device_id class_code; /* _CLS value */
struct acpi_pnp_device_id_list compatible_id_list; /* _CID list <must be last> */
};
@@ -1180,14 +1186,15 @@
/* Flags for Valid field above (acpi_get_object_info) */
-#define ACPI_VALID_STA 0x01
-#define ACPI_VALID_ADR 0x02
-#define ACPI_VALID_HID 0x04
-#define ACPI_VALID_UID 0x08
-#define ACPI_VALID_SUB 0x10
-#define ACPI_VALID_CID 0x20
-#define ACPI_VALID_SXDS 0x40
-#define ACPI_VALID_SXWS 0x80
+#define ACPI_VALID_STA 0x0001
+#define ACPI_VALID_ADR 0x0002
+#define ACPI_VALID_HID 0x0004
+#define ACPI_VALID_UID 0x0008
+#define ACPI_VALID_SUB 0x0010
+#define ACPI_VALID_CID 0x0020
+#define ACPI_VALID_CLS 0x0040
+#define ACPI_VALID_SXDS 0x0100
+#define ACPI_VALID_SXWS 0x0200
/* Flags for _STA return value (current_status above) */
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 073997d..3cedd43 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -346,29 +346,6 @@
/* We will be linking to the standard Clib functions */
-#define ACPI_STRSTR(s1,s2) strstr((s1), (s2))
-#define ACPI_STRCHR(s1,c) strchr((s1), (c))
-#define ACPI_STRLEN(s) (acpi_size) strlen((s))
-#define ACPI_STRCPY(d,s) (void) strcpy((d), (s))
-#define ACPI_STRNCPY(d,s,n) (void) strncpy((d), (s), (acpi_size)(n))
-#define ACPI_STRNCMP(d,s,n) strncmp((d), (s), (acpi_size)(n))
-#define ACPI_STRCMP(d,s) strcmp((d), (s))
-#define ACPI_STRCAT(d,s) (void) strcat((d), (s))
-#define ACPI_STRNCAT(d,s,n) strncat((d), (s), (acpi_size)(n))
-#define ACPI_STRTOUL(d,s,n) strtoul((d), (s), (acpi_size)(n))
-#define ACPI_MEMCMP(s1,s2,n) memcmp((const char *)(s1), (const char *)(s2), (acpi_size)(n))
-#define ACPI_MEMCPY(d,s,n) (void) memcpy((d), (s), (acpi_size)(n))
-#define ACPI_MEMSET(d,s,n) (void) memset((d), (s), (acpi_size)(n))
-
-#define ACPI_TOUPPER(i) toupper((int) (i))
-#define ACPI_TOLOWER(i) tolower((int) (i))
-#define ACPI_IS_XDIGIT(i) isxdigit((int) (i))
-#define ACPI_IS_DIGIT(i) isdigit((int) (i))
-#define ACPI_IS_SPACE(i) isspace((int) (i))
-#define ACPI_IS_UPPER(i) isupper((int) (i))
-#define ACPI_IS_PRINT(i) isprint((int) (i))
-#define ACPI_IS_ALPHA(i) isalpha((int) (i))
-
#else
/******************************************************************************
@@ -406,22 +383,6 @@
/* Use the local (ACPICA) definitions of the clib functions */
-#define ACPI_STRSTR(s1,s2) acpi_ut_strstr ((s1), (s2))
-#define ACPI_STRCHR(s1,c) acpi_ut_strchr ((s1), (c))
-#define ACPI_STRLEN(s) (acpi_size) acpi_ut_strlen ((s))
-#define ACPI_STRCPY(d,s) (void) acpi_ut_strcpy ((d), (s))
-#define ACPI_STRNCPY(d,s,n) (void) acpi_ut_strncpy ((d), (s), (acpi_size)(n))
-#define ACPI_STRNCMP(d,s,n) acpi_ut_strncmp ((d), (s), (acpi_size)(n))
-#define ACPI_STRCMP(d,s) acpi_ut_strcmp ((d), (s))
-#define ACPI_STRCAT(d,s) (void) acpi_ut_strcat ((d), (s))
-#define ACPI_STRNCAT(d,s,n) acpi_ut_strncat ((d), (s), (acpi_size)(n))
-#define ACPI_STRTOUL(d,s,n) acpi_ut_strtoul ((d), (s), (acpi_size)(n))
-#define ACPI_MEMCMP(s1,s2,n) acpi_ut_memcmp((const char *)(s1), (const char *)(s2), (acpi_size)(n))
-#define ACPI_MEMCPY(d,s,n) (void) acpi_ut_memcpy ((d), (s), (acpi_size)(n))
-#define ACPI_MEMSET(d,v,n) (void) acpi_ut_memset ((d), (v), (acpi_size)(n))
-#define ACPI_TOUPPER(c) acpi_ut_to_upper ((int) (c))
-#define ACPI_TOLOWER(c) acpi_ut_to_lower ((int) (c))
-
#endif /* ACPI_USE_SYSTEM_CLIBRARY */
#ifndef ACPI_FILE
diff --git a/include/acpi/platform/acenvex.h b/include/acpi/platform/acenvex.h
index 14dc6f6..0a7dc8e 100644
--- a/include/acpi/platform/acenvex.h
+++ b/include/acpi/platform/acenvex.h
@@ -56,6 +56,12 @@
#if defined(_LINUX) || defined(__linux__)
#include <acpi/platform/aclinuxex.h>
+#elif defined(_AED_EFI)
+#include "acefiex.h"
+
+#elif defined(_GNU_EFI)
+#include "acefiex.h"
+
#elif defined(__DragonFly__)
#include "acdragonflyex.h"
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index f54de0a..5457a06 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -75,4 +75,8 @@
#undef strchr
#endif
+/* GCC supports __VA_ARGS__ in macros */
+
+#define COMPILER_VA_MACRO 1
+
#endif /* __ACGCC_H__ */
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index c471dfc..d2445fa 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -58,6 +58,19 @@
acpi_fwnode_handle(adev) : NULL)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
+/**
+ * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
+ * the PCI-defined class-code information
+ *
+ * @_cls : the class, subclass, prog-if triple for this device
+ * @_msk : the class mask for this device
+ *
+ * This macro is used to create a struct acpi_device_id that matches a
+ * specific PCI class. The .id and .driver_data fields will be left
+ * initialized with the default value.
+ */
+#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
+
static inline bool has_acpi_companion(struct device *dev)
{
return is_acpi_node(dev->fwnode);
@@ -309,9 +322,6 @@
int acpi_resources_are_enforced(void);
-int acpi_reserve_region(u64 start, unsigned int length, u8 space_id,
- unsigned long flags, char *desc);
-
#ifdef CONFIG_HIBERNATION
void __init acpi_no_s4_hw_signature(void);
#endif
@@ -446,6 +456,7 @@
#define ACPI_COMPANION(dev) (NULL)
#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
#define ACPI_HANDLE(dev) (NULL)
+#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
struct fwnode_handle;
@@ -507,13 +518,6 @@
return 0;
}
-static inline int acpi_reserve_region(u64 start, unsigned int length,
- u8 space_id, unsigned long flags,
- char *desc)
-{
- return -ENXIO;
-}
-
struct acpi_table_header;
static inline int acpi_table_parse(char *id,
int (*handler)(struct acpi_table_header *))
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index a48d90e..a23209b 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -50,10 +50,10 @@
*/
struct bdi_writeback_congested {
unsigned long state; /* WB_[a]sync_congested flags */
+ atomic_t refcnt; /* nr of attached wb's and blkg */
#ifdef CONFIG_CGROUP_WRITEBACK
struct backing_dev_info *bdi; /* the associated bdi */
- atomic_t refcnt; /* nr of attached wb's and blkg */
int blkcg_id; /* ID of the associated blkcg */
struct rb_node rb_node; /* on bdi->cgwb_congestion_tree */
#endif
@@ -150,11 +150,12 @@
atomic_long_t tot_write_bandwidth;
struct bdi_writeback wb; /* the root writeback info for this bdi */
- struct bdi_writeback_congested wb_congested; /* its congested state */
#ifdef CONFIG_CGROUP_WRITEBACK
struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */
struct rb_root cgwb_congested_tree; /* their congested states */
atomic_t usage_cnt; /* counts both cgwbs and cgwb_contested's */
+#else
+ struct bdi_writeback_congested *wb_congested;
#endif
wait_queue_head_t wb_waitq;
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 0e6d482..0fe9df9 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -15,6 +15,7 @@
#include <linux/writeback.h>
#include <linux/blk-cgroup.h>
#include <linux/backing-dev-defs.h>
+#include <linux/slab.h>
int __must_check bdi_init(struct backing_dev_info *bdi);
void bdi_destroy(struct backing_dev_info *bdi);
@@ -465,11 +466,14 @@
static inline struct bdi_writeback_congested *
wb_congested_get_create(struct backing_dev_info *bdi, int blkcg_id, gfp_t gfp)
{
- return bdi->wb.congested;
+ atomic_inc(&bdi->wb_congested->refcnt);
+ return bdi->wb_congested;
}
static inline void wb_congested_put(struct bdi_writeback_congested *congested)
{
+ if (atomic_dec_and_test(&congested->refcnt))
+ kfree(congested);
}
static inline struct bdi_writeback *wb_find_current(struct backing_dev_info *bdi)
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 73b4522..e6797de 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -317,6 +317,13 @@
return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
}
+
+static inline struct buffer_head *
+sb_getblk_gfp(struct super_block *sb, sector_t block, gfp_t gfp)
+{
+ return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, gfp);
+}
+
static inline struct buffer_head *
sb_find_get_block(struct super_block *sb, sector_t block)
{
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index b6a52a4..51bb653 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -27,10 +27,12 @@
/**
* struct can_skb_priv - private additional data inside CAN sk_buffs
* @ifindex: ifindex of the first interface the CAN frame appeared on
+ * @skbcnt: atomic counter to have an unique id together with skb pointer
* @cf: align to the following CAN frame at skb->data
*/
struct can_skb_priv {
int ifindex;
+ int skbcnt;
struct can_frame cf[0];
};
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 30f92ce..9ebee53 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -43,9 +43,9 @@
int flags;
struct ceph_fsid fsid;
struct ceph_entity_addr my_addr;
- int mount_timeout;
- int osd_idle_ttl;
- int osd_keepalive_timeout;
+ unsigned long mount_timeout; /* jiffies */
+ unsigned long osd_idle_ttl; /* jiffies */
+ unsigned long osd_keepalive_timeout; /* jiffies */
/*
* any type that can't be simply compared or doesn't need need
@@ -63,9 +63,9 @@
/*
* defaults
*/
-#define CEPH_MOUNT_TIMEOUT_DEFAULT 60
-#define CEPH_OSD_KEEPALIVE_DEFAULT 5
-#define CEPH_OSD_IDLE_TTL_DEFAULT 60
+#define CEPH_MOUNT_TIMEOUT_DEFAULT msecs_to_jiffies(60 * 1000)
+#define CEPH_OSD_KEEPALIVE_DEFAULT msecs_to_jiffies(5 * 1000)
+#define CEPH_OSD_IDLE_TTL_DEFAULT msecs_to_jiffies(60 * 1000)
#define CEPH_MSG_MAX_FRONT_LEN (16*1024*1024)
#define CEPH_MSG_MAX_MIDDLE_LEN (16*1024*1024)
@@ -93,13 +93,9 @@
CEPH_MOUNT_SHUTDOWN,
};
-/*
- * subtract jiffies
- */
-static inline unsigned long time_sub(unsigned long a, unsigned long b)
+static inline unsigned long ceph_timeout_jiffies(unsigned long timeout)
{
- BUG_ON(time_after(b, a));
- return (long)a - (long)b;
+ return timeout ?: MAX_SCHEDULE_TIMEOUT;
}
struct ceph_mds_client;
@@ -178,6 +174,7 @@
extern struct kmem_cache *ceph_inode_cachep;
extern struct kmem_cache *ceph_cap_cachep;
+extern struct kmem_cache *ceph_cap_flush_cachep;
extern struct kmem_cache *ceph_dentry_cachep;
extern struct kmem_cache *ceph_file_cachep;
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index e154994..3775327 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -8,6 +8,7 @@
#include <linux/radix-tree.h>
#include <linux/uio.h>
#include <linux/workqueue.h>
+#include <net/net_namespace.h>
#include <linux/ceph/types.h>
#include <linux/ceph/buffer.h>
@@ -56,6 +57,7 @@
struct ceph_entity_addr my_enc_addr;
atomic_t stopping;
+ possible_net_t net;
bool nocrc;
bool tcp_nodelay;
@@ -267,6 +269,7 @@
u64 required_features,
bool nocrc,
bool tcp_nodelay);
+extern void ceph_messenger_fini(struct ceph_messenger *msgr);
extern void ceph_con_init(struct ceph_connection *con, void *private,
const struct ceph_connection_operations *ops,
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 61b19c4..7506b48 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -249,7 +249,7 @@
struct ceph_msg *msg);
extern void osd_req_op_init(struct ceph_osd_request *osd_req,
- unsigned int which, u16 opcode);
+ unsigned int which, u16 opcode, u32 flags);
extern void osd_req_op_raw_data_in_pages(struct ceph_osd_request *,
unsigned int which,
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 7f8ad95..e08a6ae 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -17,11 +17,11 @@
# define __release(x) __context__(x,-1)
# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
# define __percpu __attribute__((noderef, address_space(3)))
+# define __pmem __attribute__((noderef, address_space(5)))
#ifdef CONFIG_SPARSE_RCU_POINTER
# define __rcu __attribute__((noderef, address_space(4)))
#else
# define __rcu
-# define __pmem __attribute__((noderef, address_space(5)))
#endif
extern void __chk_user_ptr(const volatile void __user *);
extern void __chk_io_ptr(const volatile void __iomem *);
diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h
index cf53d07..d81961e 100644
--- a/include/linux/crc-t10dif.h
+++ b/include/linux/crc-t10dif.h
@@ -9,5 +9,6 @@
extern __u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer,
size_t len);
extern __u16 crc_t10dif(unsigned char const *, size_t);
+extern __u16 crc_t10dif_update(__u16 crc, unsigned char const *, size_t);
#endif
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 48a1a7d..48b4930 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -1,7 +1,11 @@
#ifndef CEPH_CRUSH_CRUSH_H
#define CEPH_CRUSH_CRUSH_H
-#include <linux/types.h>
+#ifdef __KERNEL__
+# include <linux/types.h>
+#else
+# include "crush_compat.h"
+#endif
/*
* CRUSH is a pseudo-random data distribution algorithm that
@@ -20,7 +24,11 @@
#define CRUSH_MAGIC 0x00010000ul /* for detecting algorithm revisions */
#define CRUSH_MAX_DEPTH 10 /* max crush hierarchy depth */
+#define CRUSH_MAX_RULESET (1<<8) /* max crush ruleset number */
+#define CRUSH_MAX_RULES CRUSH_MAX_RULESET /* should be the same as max rulesets */
+#define CRUSH_MAX_DEVICE_WEIGHT (100u * 0x10000u)
+#define CRUSH_MAX_BUCKET_WEIGHT (65535u * 0x10000u)
#define CRUSH_ITEM_UNDEF 0x7ffffffe /* undefined result (internal use only) */
#define CRUSH_ITEM_NONE 0x7fffffff /* no result */
@@ -108,6 +116,15 @@
};
extern const char *crush_bucket_alg_name(int alg);
+/*
+ * although tree was a legacy algorithm, it has been buggy, so
+ * exclude it.
+ */
+#define CRUSH_LEGACY_ALLOWED_BUCKET_ALGS ( \
+ (1 << CRUSH_BUCKET_UNIFORM) | \
+ (1 << CRUSH_BUCKET_LIST) | \
+ (1 << CRUSH_BUCKET_STRAW))
+
struct crush_bucket {
__s32 id; /* this'll be negative */
__u16 type; /* non-zero; type=0 is reserved for devices */
@@ -174,7 +191,7 @@
/* choose local attempts using a fallback permutation before
* re-descent */
__u32 choose_local_fallback_tries;
- /* choose attempts before giving up */
+ /* choose attempts before giving up */
__u32 choose_total_tries;
/* attempt chooseleaf inner descent once for firstn mode; on
* reject retry outer descent. Note that this does *not*
@@ -187,6 +204,25 @@
* that want to limit reshuffling, a value of 3 or 4 will make the
* mappings line up a bit better with previous mappings. */
__u8 chooseleaf_vary_r;
+
+#ifndef __KERNEL__
+ /*
+ * version 0 (original) of straw_calc has various flaws. version 1
+ * fixes a few of them.
+ */
+ __u8 straw_calc_version;
+
+ /*
+ * allowed bucket algs is a bitmask, here the bit positions
+ * are CRUSH_BUCKET_*. note that these are *bits* and
+ * CRUSH_BUCKET_* values are not, so we need to or together (1
+ * << CRUSH_BUCKET_WHATEVER). The 0th bit is not used to
+ * minimize confusion (bucket type values start at 1).
+ */
+ __u32 allowed_bucket_algs;
+
+ __u32 *choose_tries;
+#endif
};
diff --git a/include/linux/crush/hash.h b/include/linux/crush/hash.h
index 91e8842..d1d9025 100644
--- a/include/linux/crush/hash.h
+++ b/include/linux/crush/hash.h
@@ -1,6 +1,12 @@
#ifndef CEPH_CRUSH_HASH_H
#define CEPH_CRUSH_HASH_H
+#ifdef __KERNEL__
+# include <linux/types.h>
+#else
+# include "crush_compat.h"
+#endif
+
#define CRUSH_HASH_RJENKINS1 0
#define CRUSH_HASH_DEFAULT CRUSH_HASH_RJENKINS1
diff --git a/include/linux/crush/mapper.h b/include/linux/crush/mapper.h
index eab3674..5dfd5b1 100644
--- a/include/linux/crush/mapper.h
+++ b/include/linux/crush/mapper.h
@@ -8,7 +8,7 @@
* LGPL2
*/
-#include <linux/crush/crush.h>
+#include "crush.h"
extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size);
extern int crush_do_rule(const struct crush_map *map,
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index df334cb..d2d5024 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -160,6 +160,7 @@
char *(*d_dname)(struct dentry *, char *, int);
struct vfsmount *(*d_automount)(struct path *);
int (*d_manage)(struct dentry *, bool);
+ struct inode *(*d_select_inode)(struct dentry *, unsigned);
} ____cacheline_aligned;
/*
@@ -225,6 +226,7 @@
#define DCACHE_MAY_FREE 0x00800000
#define DCACHE_FALLTHRU 0x01000000 /* Fall through to lower layer */
+#define DCACHE_OP_SELECT_INODE 0x02000000 /* Unioned entry: dcache op selects inode */
extern seqlock_t rename_lock;
@@ -505,6 +507,11 @@
return dentry->d_inode != NULL;
}
+static inline int simple_positive(struct dentry *dentry)
+{
+ return d_really_is_positive(dentry) && !d_unhashed(dentry);
+}
+
extern void d_set_fallthru(struct dentry *dentry);
static inline bool d_is_fallthru(const struct dentry *dentry)
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 230f87b..fbb8874 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -47,6 +47,9 @@
* read mostly part
*/
atomic_t count;
+ bool resize_in_progress;
+ wait_queue_head_t resize_wait;
+
struct fdtable __rcu *fdt;
struct fdtable fdtab;
/*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f1a846..a0653e5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1654,7 +1654,6 @@
int (*set_acl)(struct inode *, struct posix_acl *, int);
/* WARNING: probably going away soon, do not use! */
- int (*dentry_open)(struct dentry *, struct file *, const struct cred *);
} ____cacheline_aligned;
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
@@ -1917,6 +1916,7 @@
#define FS_HAS_SUBTYPE 4
#define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */
#define FS_USERNS_DEV_MOUNT 16 /* A userns mount does not imply MNT_NODEV */
+#define FS_USERNS_VISIBLE 32 /* FS must already be visible */
#define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */
struct dentry *(*mount) (struct file_system_type *, int,
const char *, void *);
@@ -2004,7 +2004,6 @@
extern int freeze_super(struct super_block *super);
extern int thaw_super(struct super_block *super);
extern bool our_mnt(struct vfsmount *mnt);
-extern bool fs_fully_visible(struct file_system_type *);
extern int current_umask(void);
@@ -2213,7 +2212,6 @@
extern struct file *filp_open(const char *, int, umode_t);
extern struct file *file_open_root(struct dentry *, struct vfsmount *,
const char *, int);
-extern int vfs_open(const struct path *, struct file *, const struct cred *);
extern struct file * dentry_open(const struct path *, int, const struct cred *);
extern int filp_close(struct file *, fl_owner_t id);
@@ -2530,6 +2528,8 @@
extern int is_subdir(struct dentry *, struct dentry *);
extern int path_is_under(struct path *, struct path *);
+extern char *file_path(struct file *, char *, int);
+
#include <linux/err.h>
/* needed for stackable file system support */
@@ -2581,7 +2581,12 @@
extern struct inode *new_inode(struct super_block *sb);
extern void free_inode_nonrcu(struct inode *inode);
extern int should_remove_suid(struct dentry *);
-extern int file_remove_suid(struct file *);
+extern int file_remove_privs(struct file *);
+extern int dentry_needs_remove_privs(struct dentry *dentry);
+static inline int file_needs_remove_privs(struct file *file)
+{
+ return dentry_needs_remove_privs(file->f_path.dentry);
+}
extern void __insert_inode_hash(struct inode *, unsigned long hashval);
static inline void insert_inode_hash(struct inode *inode)
@@ -2816,6 +2821,8 @@
extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
extern const struct file_operations simple_dir_operations;
extern const struct inode_operations simple_dir_inode_operations;
+extern void make_empty_dir_inode(struct inode *inode);
+extern bool is_empty_dir_inode(struct inode *inode);
struct tree_descr { char *name; const struct file_operations *ops; int mode; };
struct dentry *d_alloc_name(struct dentry *, const char *);
extern int simple_fill_super(struct super_block *, unsigned long, struct tree_descr *);
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 7714849..604e152 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -74,6 +74,7 @@
*/
typedef void (*fscache_operation_release_t)(struct fscache_operation *op);
typedef void (*fscache_operation_processor_t)(struct fscache_operation *op);
+typedef void (*fscache_operation_cancel_t)(struct fscache_operation *op);
enum fscache_operation_state {
FSCACHE_OP_ST_BLANK, /* Op is not yet submitted */
@@ -109,6 +110,9 @@
* the op in a non-pool thread */
fscache_operation_processor_t processor;
+ /* Operation cancellation cleanup (optional) */
+ fscache_operation_cancel_t cancel;
+
/* operation releaser */
fscache_operation_release_t release;
};
@@ -119,33 +123,17 @@
extern void fscache_enqueue_operation(struct fscache_operation *);
extern void fscache_op_complete(struct fscache_operation *, bool);
extern void fscache_put_operation(struct fscache_operation *);
-
-/**
- * fscache_operation_init - Do basic initialisation of an operation
- * @op: The operation to initialise
- * @release: The release function to assign
- *
- * Do basic initialisation of an operation. The caller must still set flags,
- * object and processor if needed.
- */
-static inline void fscache_operation_init(struct fscache_operation *op,
- fscache_operation_processor_t processor,
- fscache_operation_release_t release)
-{
- INIT_WORK(&op->work, fscache_op_work_func);
- atomic_set(&op->usage, 1);
- op->state = FSCACHE_OP_ST_INITIALISED;
- op->debug_id = atomic_inc_return(&fscache_op_debug_id);
- op->processor = processor;
- op->release = release;
- INIT_LIST_HEAD(&op->pend_link);
-}
+extern void fscache_operation_init(struct fscache_operation *,
+ fscache_operation_processor_t,
+ fscache_operation_cancel_t,
+ fscache_operation_release_t);
/*
* data read operation
*/
struct fscache_retrieval {
struct fscache_operation op;
+ struct fscache_cookie *cookie; /* The netfs cookie */
struct address_space *mapping; /* netfs pages */
fscache_rw_complete_t end_io_func; /* function to call on I/O completion */
void *context; /* netfs read context (pinned) */
@@ -371,6 +359,7 @@
#define FSCACHE_OBJECT_IS_LOOKED_UP 4 /* T if object has been looked up */
#define FSCACHE_OBJECT_IS_AVAILABLE 5 /* T if object has become active */
#define FSCACHE_OBJECT_RETIRED 6 /* T if object was retired on relinquishment */
+#define FSCACHE_OBJECT_KILLED_BY_CACHE 7 /* T if object was killed by the cache */
struct list_head cache_link; /* link in cache->object_list */
struct hlist_node cookie_link; /* link in cookie->backing_objects */
@@ -410,17 +399,16 @@
return test_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
}
+static inline bool fscache_cache_is_broken(struct fscache_object *object)
+{
+ return test_bit(FSCACHE_IOERROR, &object->cache->flags);
+}
+
static inline bool fscache_object_is_active(struct fscache_object *object)
{
return fscache_object_is_available(object) &&
fscache_object_is_live(object) &&
- !test_bit(FSCACHE_IOERROR, &object->cache->flags);
-}
-
-static inline bool fscache_object_is_dead(struct fscache_object *object)
-{
- return fscache_object_is_dying(object) &&
- test_bit(FSCACHE_IOERROR, &object->cache->flags);
+ !fscache_cache_is_broken(object);
}
/**
@@ -551,4 +539,15 @@
const void *data,
uint16_t datalen);
+extern void fscache_object_retrying_stale(struct fscache_object *object);
+
+enum fscache_why_object_killed {
+ FSCACHE_OBJECT_IS_STALE,
+ FSCACHE_OBJECT_NO_SPACE,
+ FSCACHE_OBJECT_WAS_RETIRED,
+ FSCACHE_OBJECT_WAS_CULLED,
+};
+extern void fscache_object_mark_killed(struct fscache_object *object,
+ enum fscache_why_object_killed why);
+
#endif /* _LINUX_FSCACHE_CACHE_H */
diff --git a/include/linux/hwspinlock.h b/include/linux/hwspinlock.h
index 3343298..859d673 100644
--- a/include/linux/hwspinlock.h
+++ b/include/linux/hwspinlock.h
@@ -26,6 +26,7 @@
#define HWLOCK_IRQ 0x02 /* Disable interrupts, don't save state */
struct device;
+struct device_node;
struct hwspinlock;
struct hwspinlock_device;
struct hwspinlock_ops;
@@ -66,6 +67,7 @@
struct hwspinlock *hwspin_lock_request(void);
struct hwspinlock *hwspin_lock_request_specific(unsigned int id);
int hwspin_lock_free(struct hwspinlock *hwlock);
+int of_hwspin_lock_get_id(struct device_node *np, int index);
int hwspin_lock_get_id(struct hwspinlock *hwlock);
int __hwspin_lock_timeout(struct hwspinlock *, unsigned int, int,
unsigned long *);
@@ -120,6 +122,11 @@
{
}
+static inline int of_hwspin_lock_get_id(struct device_node *np, int index)
+{
+ return 0;
+}
+
static inline int hwspin_lock_get_id(struct hwspinlock *hwlock)
{
return 0;
diff --git a/include/linux/input/touchscreen.h b/include/linux/input/touchscreen.h
index 08a5ef6..eecc9ea 100644
--- a/include/linux/input/touchscreen.h
+++ b/include/linux/input/touchscreen.h
@@ -12,9 +12,10 @@
#include <linux/input.h>
#ifdef CONFIG_OF
-void touchscreen_parse_of_params(struct input_dev *dev);
+void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch);
#else
-static inline void touchscreen_parse_of_params(struct input_dev *dev)
+static inline void touchscreen_parse_of_params(struct input_dev *dev,
+ bool multitouch)
{
}
#endif
diff --git a/include/linux/irqchip.h b/include/linux/irqchip.h
index 14d7913..6388873 100644
--- a/include/linux/irqchip.h
+++ b/include/linux/irqchip.h
@@ -11,6 +11,20 @@
#ifndef _LINUX_IRQCHIP_H
#define _LINUX_IRQCHIP_H
+#include <linux/of.h>
+
+/*
+ * This macro must be used by the different irqchip drivers to declare
+ * the association between their DT compatible string and their
+ * initialization function.
+ *
+ * @name: name that must be unique accross all IRQCHIP_DECLARE of the
+ * same file.
+ * @compstr: compatible string of the irqchip driver
+ * @fn: initialization function
+ */
+#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
+
#ifdef CONFIG_IRQCHIP
void irqchip_init(void);
#else
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 624a668..fcea4e4 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -87,7 +87,12 @@
const char *name;
} ____cacheline_internodealigned_in_smp;
-#ifndef CONFIG_SPARSE_IRQ
+#ifdef CONFIG_SPARSE_IRQ
+extern void irq_lock_sparse(void);
+extern void irq_unlock_sparse(void);
+#else
+static inline void irq_lock_sparse(void) { }
+static inline void irq_unlock_sparse(void) { }
extern struct irq_desc irq_desc[NR_IRQS];
#endif
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index e6b2f7d..123be25 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -45,6 +45,7 @@
KERNFS_LOCKDEP = 0x0100,
KERNFS_SUICIDAL = 0x0400,
KERNFS_SUICIDED = 0x0800,
+ KERNFS_EMPTY_DIR = 0x1000,
};
/* @flags for kernfs_create_root() */
@@ -286,6 +287,8 @@
struct kernfs_node *kernfs_create_dir_ns(struct kernfs_node *parent,
const char *name, umode_t mode,
void *priv, const void *ns);
+struct kernfs_node *kernfs_create_empty_dir(struct kernfs_node *parent,
+ const char *name);
struct kernfs_node *__kernfs_create_file(struct kernfs_node *parent,
const char *name,
umode_t mode, loff_t size,
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 8183d66..34f25b7 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -189,6 +189,8 @@
struct acpi_device_id {
__u8 id[ACPI_ID_LEN];
kernel_ulong_t driver_data;
+ __u32 cls;
+ __u32 cls_msk;
};
#define PNP_ID_LEN 8
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 32201c2..b8e72aa 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -500,6 +500,7 @@
NFSPROC4_CLNT_SEEK,
NFSPROC4_CLNT_ALLOCATE,
NFSPROC4_CLNT_DEALLOCATE,
+ NFSPROC4_CLNT_LAYOUTSTATS,
};
/* nfs41 types */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index b95f914..f91b5ad 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -219,6 +219,7 @@
#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */
#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
+#define NFS_INO_LAYOUTSTATS (11) /* layoutstats inflight */
static inline struct nfs_inode *NFS_I(const struct inode *inode)
{
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 5e1273d..a2ea149 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -237,5 +237,6 @@
#define NFS_CAP_SEEK (1U << 19)
#define NFS_CAP_ALLOCATE (1U << 20)
#define NFS_CAP_DEALLOCATE (1U << 21)
+#define NFS_CAP_LAYOUTSTATS (1U << 22)
#endif
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 3eb072d..f2f650f 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -67,7 +67,6 @@
const fmode_t rw_mode;
struct nfs_pgio_header *(*rw_alloc_header)(void);
void (*rw_free_header)(struct nfs_pgio_header *);
- void (*rw_release)(struct nfs_pgio_header *);
int (*rw_done)(struct rpc_task *, struct nfs_pgio_header *,
struct inode *);
void (*rw_result)(struct rpc_task *, struct nfs_pgio_header *);
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 93ab607..7bbe505 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -316,6 +316,49 @@
int rpc_status;
};
+#define PNFS_LAYOUTSTATS_MAXSIZE 256
+
+struct nfs42_layoutstat_args;
+struct nfs42_layoutstat_devinfo;
+typedef void (*layoutstats_encode_t)(struct xdr_stream *,
+ struct nfs42_layoutstat_args *,
+ struct nfs42_layoutstat_devinfo *);
+
+/* Per file per deviceid layoutstats */
+struct nfs42_layoutstat_devinfo {
+ struct nfs4_deviceid dev_id;
+ __u64 offset;
+ __u64 length;
+ __u64 read_count;
+ __u64 read_bytes;
+ __u64 write_count;
+ __u64 write_bytes;
+ __u32 layout_type;
+ layoutstats_encode_t layoutstats_encode;
+ void *layout_private;
+};
+
+struct nfs42_layoutstat_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh *fh;
+ struct inode *inode;
+ nfs4_stateid stateid;
+ int num_dev;
+ struct nfs42_layoutstat_devinfo *devinfo;
+};
+
+struct nfs42_layoutstat_res {
+ struct nfs4_sequence_res seq_res;
+ int num_dev;
+ int rpc_status;
+};
+
+struct nfs42_layoutstat_data {
+ struct inode *inode;
+ struct nfs42_layoutstat_args args;
+ struct nfs42_layoutstat_res res;
+};
+
struct stateowner_id {
__u64 create_time;
__u32 uniquifier;
@@ -984,17 +1027,14 @@
struct nfs4_sequence_res seq_res;
};
-#define NFS4_SETCLIENTID_NAMELEN (127)
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier;
- unsigned int sc_name_len;
- char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
u32 sc_prog;
unsigned int sc_netid_len;
char sc_netid[RPCBIND_MAXNETIDLEN + 1];
unsigned int sc_uaddr_len;
char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
- u32 sc_cb_ident;
+ struct nfs_client *sc_clnt;
struct rpc_cred *sc_cred;
};
@@ -1142,12 +1182,9 @@
struct nfs4_op_map allow;
};
-#define NFS4_EXCHANGE_ID_LEN (48)
struct nfs41_exchange_id_args {
struct nfs_client *client;
nfs4_verifier *verifier;
- unsigned int id_len;
- char id[NFS4_EXCHANGE_ID_LEN];
u32 flags;
struct nfs41_state_protection state_protect;
};
diff --git a/include/linux/ntb.h b/include/linux/ntb.h
index 9ac1a62..b02f72b 100644
--- a/include/linux/ntb.h
+++ b/include/linux/ntb.h
@@ -4,15 +4,20 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
* BSD LICENSE
*
- * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -40,49 +45,940 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Intel PCIe NTB Linux driver
+ * PCIe NTB Linux driver
*
* Contact Information:
- * Jon Mason <jon.mason@intel.com>
+ * Allen Hubbe <Allen.Hubbe@emc.com>
*/
-struct ntb_transport_qp;
+#ifndef _NTB_H_
+#define _NTB_H_
+#include <linux/completion.h>
+#include <linux/device.h>
+
+struct ntb_client;
+struct ntb_dev;
+struct pci_dev;
+
+/**
+ * enum ntb_topo - NTB connection topology
+ * @NTB_TOPO_NONE: Topology is unknown or invalid.
+ * @NTB_TOPO_PRI: On primary side of local ntb.
+ * @NTB_TOPO_SEC: On secondary side of remote ntb.
+ * @NTB_TOPO_B2B_USD: On primary side of local ntb upstream of remote ntb.
+ * @NTB_TOPO_B2B_DSD: On primary side of local ntb downstream of remote ntb.
+ */
+enum ntb_topo {
+ NTB_TOPO_NONE = -1,
+ NTB_TOPO_PRI,
+ NTB_TOPO_SEC,
+ NTB_TOPO_B2B_USD,
+ NTB_TOPO_B2B_DSD,
+};
+
+static inline int ntb_topo_is_b2b(enum ntb_topo topo)
+{
+ switch ((int)topo) {
+ case NTB_TOPO_B2B_USD:
+ case NTB_TOPO_B2B_DSD:
+ return 1;
+ }
+ return 0;
+}
+
+static inline char *ntb_topo_string(enum ntb_topo topo)
+{
+ switch (topo) {
+ case NTB_TOPO_NONE: return "NTB_TOPO_NONE";
+ case NTB_TOPO_PRI: return "NTB_TOPO_PRI";
+ case NTB_TOPO_SEC: return "NTB_TOPO_SEC";
+ case NTB_TOPO_B2B_USD: return "NTB_TOPO_B2B_USD";
+ case NTB_TOPO_B2B_DSD: return "NTB_TOPO_B2B_DSD";
+ }
+ return "NTB_TOPO_INVALID";
+}
+
+/**
+ * enum ntb_speed - NTB link training speed
+ * @NTB_SPEED_AUTO: Request the max supported speed.
+ * @NTB_SPEED_NONE: Link is not trained to any speed.
+ * @NTB_SPEED_GEN1: Link is trained to gen1 speed.
+ * @NTB_SPEED_GEN2: Link is trained to gen2 speed.
+ * @NTB_SPEED_GEN3: Link is trained to gen3 speed.
+ */
+enum ntb_speed {
+ NTB_SPEED_AUTO = -1,
+ NTB_SPEED_NONE = 0,
+ NTB_SPEED_GEN1 = 1,
+ NTB_SPEED_GEN2 = 2,
+ NTB_SPEED_GEN3 = 3,
+};
+
+/**
+ * enum ntb_width - NTB link training width
+ * @NTB_WIDTH_AUTO: Request the max supported width.
+ * @NTB_WIDTH_NONE: Link is not trained to any width.
+ * @NTB_WIDTH_1: Link is trained to 1 lane width.
+ * @NTB_WIDTH_2: Link is trained to 2 lane width.
+ * @NTB_WIDTH_4: Link is trained to 4 lane width.
+ * @NTB_WIDTH_8: Link is trained to 8 lane width.
+ * @NTB_WIDTH_12: Link is trained to 12 lane width.
+ * @NTB_WIDTH_16: Link is trained to 16 lane width.
+ * @NTB_WIDTH_32: Link is trained to 32 lane width.
+ */
+enum ntb_width {
+ NTB_WIDTH_AUTO = -1,
+ NTB_WIDTH_NONE = 0,
+ NTB_WIDTH_1 = 1,
+ NTB_WIDTH_2 = 2,
+ NTB_WIDTH_4 = 4,
+ NTB_WIDTH_8 = 8,
+ NTB_WIDTH_12 = 12,
+ NTB_WIDTH_16 = 16,
+ NTB_WIDTH_32 = 32,
+};
+
+/**
+ * struct ntb_client_ops - ntb client operations
+ * @probe: Notify client of a new device.
+ * @remove: Notify client to remove a device.
+ */
+struct ntb_client_ops {
+ int (*probe)(struct ntb_client *client, struct ntb_dev *ntb);
+ void (*remove)(struct ntb_client *client, struct ntb_dev *ntb);
+};
+
+static inline int ntb_client_ops_is_valid(const struct ntb_client_ops *ops)
+{
+ /* commented callbacks are not required: */
+ return
+ ops->probe &&
+ ops->remove &&
+ 1;
+}
+
+/**
+ * struct ntb_ctx_ops - ntb driver context operations
+ * @link_event: See ntb_link_event().
+ * @db_event: See ntb_db_event().
+ */
+struct ntb_ctx_ops {
+ void (*link_event)(void *ctx);
+ void (*db_event)(void *ctx, int db_vector);
+};
+
+static inline int ntb_ctx_ops_is_valid(const struct ntb_ctx_ops *ops)
+{
+ /* commented callbacks are not required: */
+ return
+ /* ops->link_event && */
+ /* ops->db_event && */
+ 1;
+}
+
+/**
+ * struct ntb_ctx_ops - ntb device operations
+ * @mw_count: See ntb_mw_count().
+ * @mw_get_range: See ntb_mw_get_range().
+ * @mw_set_trans: See ntb_mw_set_trans().
+ * @mw_clear_trans: See ntb_mw_clear_trans().
+ * @link_is_up: See ntb_link_is_up().
+ * @link_enable: See ntb_link_enable().
+ * @link_disable: See ntb_link_disable().
+ * @db_is_unsafe: See ntb_db_is_unsafe().
+ * @db_valid_mask: See ntb_db_valid_mask().
+ * @db_vector_count: See ntb_db_vector_count().
+ * @db_vector_mask: See ntb_db_vector_mask().
+ * @db_read: See ntb_db_read().
+ * @db_set: See ntb_db_set().
+ * @db_clear: See ntb_db_clear().
+ * @db_read_mask: See ntb_db_read_mask().
+ * @db_set_mask: See ntb_db_set_mask().
+ * @db_clear_mask: See ntb_db_clear_mask().
+ * @peer_db_addr: See ntb_peer_db_addr().
+ * @peer_db_read: See ntb_peer_db_read().
+ * @peer_db_set: See ntb_peer_db_set().
+ * @peer_db_clear: See ntb_peer_db_clear().
+ * @peer_db_read_mask: See ntb_peer_db_read_mask().
+ * @peer_db_set_mask: See ntb_peer_db_set_mask().
+ * @peer_db_clear_mask: See ntb_peer_db_clear_mask().
+ * @spad_is_unsafe: See ntb_spad_is_unsafe().
+ * @spad_count: See ntb_spad_count().
+ * @spad_read: See ntb_spad_read().
+ * @spad_write: See ntb_spad_write().
+ * @peer_spad_addr: See ntb_peer_spad_addr().
+ * @peer_spad_read: See ntb_peer_spad_read().
+ * @peer_spad_write: See ntb_peer_spad_write().
+ */
+struct ntb_dev_ops {
+ int (*mw_count)(struct ntb_dev *ntb);
+ int (*mw_get_range)(struct ntb_dev *ntb, int idx,
+ phys_addr_t *base, resource_size_t *size,
+ resource_size_t *align, resource_size_t *align_size);
+ int (*mw_set_trans)(struct ntb_dev *ntb, int idx,
+ dma_addr_t addr, resource_size_t size);
+ int (*mw_clear_trans)(struct ntb_dev *ntb, int idx);
+
+ int (*link_is_up)(struct ntb_dev *ntb,
+ enum ntb_speed *speed, enum ntb_width *width);
+ int (*link_enable)(struct ntb_dev *ntb,
+ enum ntb_speed max_speed, enum ntb_width max_width);
+ int (*link_disable)(struct ntb_dev *ntb);
+
+ int (*db_is_unsafe)(struct ntb_dev *ntb);
+ u64 (*db_valid_mask)(struct ntb_dev *ntb);
+ int (*db_vector_count)(struct ntb_dev *ntb);
+ u64 (*db_vector_mask)(struct ntb_dev *ntb, int db_vector);
+
+ u64 (*db_read)(struct ntb_dev *ntb);
+ int (*db_set)(struct ntb_dev *ntb, u64 db_bits);
+ int (*db_clear)(struct ntb_dev *ntb, u64 db_bits);
+
+ u64 (*db_read_mask)(struct ntb_dev *ntb);
+ int (*db_set_mask)(struct ntb_dev *ntb, u64 db_bits);
+ int (*db_clear_mask)(struct ntb_dev *ntb, u64 db_bits);
+
+ int (*peer_db_addr)(struct ntb_dev *ntb,
+ phys_addr_t *db_addr, resource_size_t *db_size);
+ u64 (*peer_db_read)(struct ntb_dev *ntb);
+ int (*peer_db_set)(struct ntb_dev *ntb, u64 db_bits);
+ int (*peer_db_clear)(struct ntb_dev *ntb, u64 db_bits);
+
+ u64 (*peer_db_read_mask)(struct ntb_dev *ntb);
+ int (*peer_db_set_mask)(struct ntb_dev *ntb, u64 db_bits);
+ int (*peer_db_clear_mask)(struct ntb_dev *ntb, u64 db_bits);
+
+ int (*spad_is_unsafe)(struct ntb_dev *ntb);
+ int (*spad_count)(struct ntb_dev *ntb);
+
+ u32 (*spad_read)(struct ntb_dev *ntb, int idx);
+ int (*spad_write)(struct ntb_dev *ntb, int idx, u32 val);
+
+ int (*peer_spad_addr)(struct ntb_dev *ntb, int idx,
+ phys_addr_t *spad_addr);
+ u32 (*peer_spad_read)(struct ntb_dev *ntb, int idx);
+ int (*peer_spad_write)(struct ntb_dev *ntb, int idx, u32 val);
+};
+
+static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
+{
+ /* commented callbacks are not required: */
+ return
+ ops->mw_count &&
+ ops->mw_get_range &&
+ ops->mw_set_trans &&
+ /* ops->mw_clear_trans && */
+ ops->link_is_up &&
+ ops->link_enable &&
+ ops->link_disable &&
+ /* ops->db_is_unsafe && */
+ ops->db_valid_mask &&
+
+ /* both set, or both unset */
+ (!ops->db_vector_count == !ops->db_vector_mask) &&
+
+ ops->db_read &&
+ /* ops->db_set && */
+ ops->db_clear &&
+ /* ops->db_read_mask && */
+ ops->db_set_mask &&
+ ops->db_clear_mask &&
+ ops->peer_db_addr &&
+ /* ops->peer_db_read && */
+ ops->peer_db_set &&
+ /* ops->peer_db_clear && */
+ /* ops->peer_db_read_mask && */
+ /* ops->peer_db_set_mask && */
+ /* ops->peer_db_clear_mask && */
+ /* ops->spad_is_unsafe && */
+ ops->spad_count &&
+ ops->spad_read &&
+ ops->spad_write &&
+ ops->peer_spad_addr &&
+ /* ops->peer_spad_read && */
+ ops->peer_spad_write &&
+ 1;
+}
+
+/**
+ * struct ntb_client - client interested in ntb devices
+ * @drv: Linux driver object.
+ * @ops: See &ntb_client_ops.
+ */
struct ntb_client {
- struct device_driver driver;
- int (*probe)(struct pci_dev *pdev);
- void (*remove)(struct pci_dev *pdev);
+ struct device_driver drv;
+ const struct ntb_client_ops ops;
};
-enum {
- NTB_LINK_DOWN = 0,
- NTB_LINK_UP,
+#define drv_ntb_client(__drv) container_of((__drv), struct ntb_client, drv)
+
+/**
+ * struct ntb_device - ntb device
+ * @dev: Linux device object.
+ * @pdev: Pci device entry of the ntb.
+ * @topo: Detected topology of the ntb.
+ * @ops: See &ntb_dev_ops.
+ * @ctx: See &ntb_ctx_ops.
+ * @ctx_ops: See &ntb_ctx_ops.
+ */
+struct ntb_dev {
+ struct device dev;
+ struct pci_dev *pdev;
+ enum ntb_topo topo;
+ const struct ntb_dev_ops *ops;
+ void *ctx;
+ const struct ntb_ctx_ops *ctx_ops;
+
+ /* private: */
+
+ /* synchronize setting, clearing, and calling ctx_ops */
+ spinlock_t ctx_lock;
+ /* block unregister until device is fully released */
+ struct completion released;
};
-int ntb_register_client(struct ntb_client *drvr);
-void ntb_unregister_client(struct ntb_client *drvr);
-int ntb_register_client_dev(char *device_name);
-void ntb_unregister_client_dev(char *device_name);
+#define dev_ntb(__dev) container_of((__dev), struct ntb_dev, dev)
-struct ntb_queue_handlers {
- void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
- void *data, int len);
- void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
- void *data, int len);
- void (*event_handler)(void *data, int status);
-};
+/**
+ * ntb_register_client() - register a client for interest in ntb devices
+ * @client: Client context.
+ *
+ * The client will be added to the list of clients interested in ntb devices.
+ * The client will be notified of any ntb devices that are not already
+ * associated with a client, or if ntb devices are registered later.
+ *
+ * Return: Zero if the client is registered, otherwise an error number.
+ */
+#define ntb_register_client(client) \
+ __ntb_register_client((client), THIS_MODULE, KBUILD_MODNAME)
-unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp);
-unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp);
-struct ntb_transport_qp *
-ntb_transport_create_queue(void *data, struct pci_dev *pdev,
- const struct ntb_queue_handlers *handlers);
-void ntb_transport_free_queue(struct ntb_transport_qp *qp);
-int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
- unsigned int len);
-int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
- unsigned int len);
-void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len);
-void ntb_transport_link_up(struct ntb_transport_qp *qp);
-void ntb_transport_link_down(struct ntb_transport_qp *qp);
-bool ntb_transport_link_query(struct ntb_transport_qp *qp);
+int __ntb_register_client(struct ntb_client *client, struct module *mod,
+ const char *mod_name);
+
+/**
+ * ntb_unregister_client() - unregister a client for interest in ntb devices
+ * @client: Client context.
+ *
+ * The client will be removed from the list of clients interested in ntb
+ * devices. If any ntb devices are associated with the client, the client will
+ * be notified to remove those devices.
+ */
+void ntb_unregister_client(struct ntb_client *client);
+
+#define module_ntb_client(__ntb_client) \
+ module_driver(__ntb_client, ntb_register_client, \
+ ntb_unregister_client)
+
+/**
+ * ntb_register_device() - register a ntb device
+ * @ntb: NTB device context.
+ *
+ * The device will be added to the list of ntb devices. If any clients are
+ * interested in ntb devices, each client will be notified of the ntb device,
+ * until at most one client accepts the device.
+ *
+ * Return: Zero if the device is registered, otherwise an error number.
+ */
+int ntb_register_device(struct ntb_dev *ntb);
+
+/**
+ * ntb_register_device() - unregister a ntb device
+ * @ntb: NTB device context.
+ *
+ * The device will be removed from the list of ntb devices. If the ntb device
+ * is associated with a client, the client will be notified to remove the
+ * device.
+ */
+void ntb_unregister_device(struct ntb_dev *ntb);
+
+/**
+ * ntb_set_ctx() - associate a driver context with an ntb device
+ * @ntb: NTB device context.
+ * @ctx: Driver context.
+ * @ctx_ops: Driver context operations.
+ *
+ * Associate a driver context and operations with a ntb device. The context is
+ * provided by the client driver, and the driver may associate a different
+ * context with each ntb device.
+ *
+ * Return: Zero if the context is associated, otherwise an error number.
+ */
+int ntb_set_ctx(struct ntb_dev *ntb, void *ctx,
+ const struct ntb_ctx_ops *ctx_ops);
+
+/**
+ * ntb_clear_ctx() - disassociate any driver context from an ntb device
+ * @ntb: NTB device context.
+ *
+ * Clear any association that may exist between a driver context and the ntb
+ * device.
+ */
+void ntb_clear_ctx(struct ntb_dev *ntb);
+
+/**
+ * ntb_link_event() - notify driver context of a change in link status
+ * @ntb: NTB device context.
+ *
+ * Notify the driver context that the link status may have changed. The driver
+ * should call ntb_link_is_up() to get the current status.
+ */
+void ntb_link_event(struct ntb_dev *ntb);
+
+/**
+ * ntb_db_event() - notify driver context of a doorbell event
+ * @ntb: NTB device context.
+ * @vector: Interrupt vector number.
+ *
+ * Notify the driver context of a doorbell event. If hardware supports
+ * multiple interrupt vectors for doorbells, the vector number indicates which
+ * vector received the interrupt. The vector number is relative to the first
+ * vector used for doorbells, starting at zero, and must be less than
+ ** ntb_db_vector_count(). The driver may call ntb_db_read() to check which
+ * doorbell bits need service, and ntb_db_vector_mask() to determine which of
+ * those bits are associated with the vector number.
+ */
+void ntb_db_event(struct ntb_dev *ntb, int vector);
+
+/**
+ * ntb_mw_count() - get the number of memory windows
+ * @ntb: NTB device context.
+ *
+ * Hardware and topology may support a different number of memory windows.
+ *
+ * Return: the number of memory windows.
+ */
+static inline int ntb_mw_count(struct ntb_dev *ntb)
+{
+ return ntb->ops->mw_count(ntb);
+}
+
+/**
+ * ntb_mw_get_range() - get the range of a memory window
+ * @ntb: NTB device context.
+ * @idx: Memory window number.
+ * @base: OUT - the base address for mapping the memory window
+ * @size: OUT - the size for mapping the memory window
+ * @align: OUT - the base alignment for translating the memory window
+ * @align_size: OUT - the size alignment for translating the memory window
+ *
+ * Get the range of a memory window. NULL may be given for any output
+ * parameter if the value is not needed. The base and size may be used for
+ * mapping the memory window, to access the peer memory. The alignment and
+ * size may be used for translating the memory window, for the peer to access
+ * memory on the local system.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_mw_get_range(struct ntb_dev *ntb, int idx,
+ phys_addr_t *base, resource_size_t *size,
+ resource_size_t *align, resource_size_t *align_size)
+{
+ return ntb->ops->mw_get_range(ntb, idx, base, size,
+ align, align_size);
+}
+
+/**
+ * ntb_mw_set_trans() - set the translation of a memory window
+ * @ntb: NTB device context.
+ * @idx: Memory window number.
+ * @addr: The dma address local memory to expose to the peer.
+ * @size: The size of the local memory to expose to the peer.
+ *
+ * Set the translation of a memory window. The peer may access local memory
+ * through the window starting at the address, up to the size. The address
+ * must be aligned to the alignment specified by ntb_mw_get_range(). The size
+ * must be aligned to the size alignment specified by ntb_mw_get_range().
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
+ dma_addr_t addr, resource_size_t size)
+{
+ return ntb->ops->mw_set_trans(ntb, idx, addr, size);
+}
+
+/**
+ * ntb_mw_clear_trans() - clear the translation of a memory window
+ * @ntb: NTB device context.
+ * @idx: Memory window number.
+ *
+ * Clear the translation of a memory window. The peer may no longer access
+ * local memory through the window.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int idx)
+{
+ if (!ntb->ops->mw_clear_trans)
+ return ntb->ops->mw_set_trans(ntb, idx, 0, 0);
+
+ return ntb->ops->mw_clear_trans(ntb, idx);
+}
+
+/**
+ * ntb_link_is_up() - get the current ntb link state
+ * @ntb: NTB device context.
+ * @speed: OUT - The link speed expressed as PCIe generation number.
+ * @width: OUT - The link width expressed as the number of PCIe lanes.
+ *
+ * Set the translation of a memory window. The peer may access local memory
+ * through the window starting at the address, up to the size. The address
+ * must be aligned to the alignment specified by ntb_mw_get_range(). The size
+ * must be aligned to the size alignment specified by ntb_mw_get_range().
+ *
+ * Return: One if the link is up, zero if the link is down, otherwise a
+ * negative value indicating the error number.
+ */
+static inline int ntb_link_is_up(struct ntb_dev *ntb,
+ enum ntb_speed *speed, enum ntb_width *width)
+{
+ return ntb->ops->link_is_up(ntb, speed, width);
+}
+
+/**
+ * ntb_link_enable() - enable the link on the secondary side of the ntb
+ * @ntb: NTB device context.
+ * @max_speed: The maximum link speed expressed as PCIe generation number.
+ * @max_width: The maximum link width expressed as the number of PCIe lanes.
+ *
+ * Enable the link on the secondary side of the ntb. This can only be done
+ * from the primary side of the ntb in primary or b2b topology. The ntb device
+ * should train the link to its maximum speed and width, or the requested speed
+ * and width, whichever is smaller, if supported.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_link_enable(struct ntb_dev *ntb,
+ enum ntb_speed max_speed,
+ enum ntb_width max_width)
+{
+ return ntb->ops->link_enable(ntb, max_speed, max_width);
+}
+
+/**
+ * ntb_link_disable() - disable the link on the secondary side of the ntb
+ * @ntb: NTB device context.
+ *
+ * Disable the link on the secondary side of the ntb. This can only be
+ * done from the primary side of the ntb in primary or b2b topology. The ntb
+ * device should disable the link. Returning from this call must indicate that
+ * a barrier has passed, though with no more writes may pass in either
+ * direction across the link, except if this call returns an error number.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_link_disable(struct ntb_dev *ntb)
+{
+ return ntb->ops->link_disable(ntb);
+}
+
+/**
+ * ntb_db_is_unsafe() - check if it is safe to use hardware doorbell
+ * @ntb: NTB device context.
+ *
+ * It is possible for some ntb hardware to be affected by errata. Hardware
+ * drivers can advise clients to avoid using doorbells. Clients may ignore
+ * this advice, though caution is recommended.
+ *
+ * Return: Zero if it is safe to use doorbells, or One if it is not safe.
+ */
+static inline int ntb_db_is_unsafe(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->db_is_unsafe)
+ return 0;
+
+ return ntb->ops->db_is_unsafe(ntb);
+}
+
+/**
+ * ntb_db_valid_mask() - get a mask of doorbell bits supported by the ntb
+ * @ntb: NTB device context.
+ *
+ * Hardware may support different number or arrangement of doorbell bits.
+ *
+ * Return: A mask of doorbell bits supported by the ntb.
+ */
+static inline u64 ntb_db_valid_mask(struct ntb_dev *ntb)
+{
+ return ntb->ops->db_valid_mask(ntb);
+}
+
+/**
+ * ntb_db_vector_count() - get the number of doorbell interrupt vectors
+ * @ntb: NTB device context.
+ *
+ * Hardware may support different number of interrupt vectors.
+ *
+ * Return: The number of doorbell interrupt vectors.
+ */
+static inline int ntb_db_vector_count(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->db_vector_count)
+ return 1;
+
+ return ntb->ops->db_vector_count(ntb);
+}
+
+/**
+ * ntb_db_vector_mask() - get a mask of doorbell bits serviced by a vector
+ * @ntb: NTB device context.
+ * @vector: Doorbell vector number.
+ *
+ * Each interrupt vector may have a different number or arrangement of bits.
+ *
+ * Return: A mask of doorbell bits serviced by a vector.
+ */
+static inline u64 ntb_db_vector_mask(struct ntb_dev *ntb, int vector)
+{
+ if (!ntb->ops->db_vector_mask)
+ return ntb_db_valid_mask(ntb);
+
+ return ntb->ops->db_vector_mask(ntb, vector);
+}
+
+/**
+ * ntb_db_read() - read the local doorbell register
+ * @ntb: NTB device context.
+ *
+ * Read the local doorbell register, and return the bits that are set.
+ *
+ * Return: The bits currently set in the local doorbell register.
+ */
+static inline u64 ntb_db_read(struct ntb_dev *ntb)
+{
+ return ntb->ops->db_read(ntb);
+}
+
+/**
+ * ntb_db_set() - set bits in the local doorbell register
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to set.
+ *
+ * Set bits in the local doorbell register, which may generate a local doorbell
+ * interrupt. Bits that were already set must remain set.
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_db_set(struct ntb_dev *ntb, u64 db_bits)
+{
+ if (!ntb->ops->db_set)
+ return -EINVAL;
+
+ return ntb->ops->db_set(ntb, db_bits);
+}
+
+/**
+ * ntb_db_clear() - clear bits in the local doorbell register
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to clear.
+ *
+ * Clear bits in the local doorbell register, arming the bits for the next
+ * doorbell.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_db_clear(struct ntb_dev *ntb, u64 db_bits)
+{
+ return ntb->ops->db_clear(ntb, db_bits);
+}
+
+/**
+ * ntb_db_read_mask() - read the local doorbell mask
+ * @ntb: NTB device context.
+ *
+ * Read the local doorbell mask register, and return the bits that are set.
+ *
+ * This is unusual, though hardware is likely to support it.
+ *
+ * Return: The bits currently set in the local doorbell mask register.
+ */
+static inline u64 ntb_db_read_mask(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->db_read_mask)
+ return 0;
+
+ return ntb->ops->db_read_mask(ntb);
+}
+
+/**
+ * ntb_db_set_mask() - set bits in the local doorbell mask
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell mask bits to set.
+ *
+ * Set bits in the local doorbell mask register, preventing doorbell interrupts
+ * from being generated for those doorbell bits. Bits that were already set
+ * must remain set.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ return ntb->ops->db_set_mask(ntb, db_bits);
+}
+
+/**
+ * ntb_db_clear_mask() - clear bits in the local doorbell mask
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to clear.
+ *
+ * Clear bits in the local doorbell mask register, allowing doorbell interrupts
+ * from being generated for those doorbell bits. If a doorbell bit is already
+ * set at the time the mask is cleared, and the corresponding mask bit is
+ * changed from set to clear, then the ntb driver must ensure that
+ * ntb_db_event() is called. If the hardware does not generate the interrupt
+ * on clearing the mask bit, then the driver must call ntb_db_event() anyway.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_db_clear_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ return ntb->ops->db_clear_mask(ntb, db_bits);
+}
+
+/**
+ * ntb_peer_db_addr() - address and size of the peer doorbell register
+ * @ntb: NTB device context.
+ * @db_addr: OUT - The address of the peer doorbell register.
+ * @db_size: OUT - The number of bytes to write the peer doorbell register.
+ *
+ * Return the address of the peer doorbell register. This may be used, for
+ * example, by drivers that offload memory copy operations to a dma engine.
+ * The drivers may wish to ring the peer doorbell at the completion of memory
+ * copy operations. For efficiency, and to simplify ordering of operations
+ * between the dma memory copies and the ringing doorbell, the driver may
+ * append one additional dma memory copy with the doorbell register as the
+ * destination, after the memory copy operations.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_db_addr(struct ntb_dev *ntb,
+ phys_addr_t *db_addr,
+ resource_size_t *db_size)
+{
+ return ntb->ops->peer_db_addr(ntb, db_addr, db_size);
+}
+
+/**
+ * ntb_peer_db_read() - read the peer doorbell register
+ * @ntb: NTB device context.
+ *
+ * Read the peer doorbell register, and return the bits that are set.
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: The bits currently set in the peer doorbell register.
+ */
+static inline u64 ntb_peer_db_read(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->peer_db_read)
+ return 0;
+
+ return ntb->ops->peer_db_read(ntb);
+}
+
+/**
+ * ntb_peer_db_set() - set bits in the peer doorbell register
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to set.
+ *
+ * Set bits in the peer doorbell register, which may generate a peer doorbell
+ * interrupt. Bits that were already set must remain set.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
+{
+ return ntb->ops->peer_db_set(ntb, db_bits);
+}
+
+/**
+ * ntb_peer_db_clear() - clear bits in the local doorbell register
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to clear.
+ *
+ * Clear bits in the peer doorbell register, arming the bits for the next
+ * doorbell.
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_db_clear(struct ntb_dev *ntb, u64 db_bits)
+{
+ if (!ntb->ops->db_clear)
+ return -EINVAL;
+
+ return ntb->ops->peer_db_clear(ntb, db_bits);
+}
+
+/**
+ * ntb_peer_db_read_mask() - read the peer doorbell mask
+ * @ntb: NTB device context.
+ *
+ * Read the peer doorbell mask register, and return the bits that are set.
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: The bits currently set in the peer doorbell mask register.
+ */
+static inline u64 ntb_peer_db_read_mask(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->db_read_mask)
+ return 0;
+
+ return ntb->ops->peer_db_read_mask(ntb);
+}
+
+/**
+ * ntb_peer_db_set_mask() - set bits in the peer doorbell mask
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell mask bits to set.
+ *
+ * Set bits in the peer doorbell mask register, preventing doorbell interrupts
+ * from being generated for those doorbell bits. Bits that were already set
+ * must remain set.
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_db_set_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ if (!ntb->ops->db_set_mask)
+ return -EINVAL;
+
+ return ntb->ops->peer_db_set_mask(ntb, db_bits);
+}
+
+/**
+ * ntb_peer_db_clear_mask() - clear bits in the peer doorbell mask
+ * @ntb: NTB device context.
+ * @db_bits: Doorbell bits to clear.
+ *
+ * Clear bits in the peer doorbell mask register, allowing doorbell interrupts
+ * from being generated for those doorbell bits. If the hardware does not
+ * generate the interrupt on clearing the mask bit, then the driver should not
+ * implement this function!
+ *
+ * This is unusual, and hardware may not support it.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_db_clear_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+ if (!ntb->ops->db_clear_mask)
+ return -EINVAL;
+
+ return ntb->ops->peer_db_clear_mask(ntb, db_bits);
+}
+
+/**
+ * ntb_spad_is_unsafe() - check if it is safe to use the hardware scratchpads
+ * @ntb: NTB device context.
+ *
+ * It is possible for some ntb hardware to be affected by errata. Hardware
+ * drivers can advise clients to avoid using scratchpads. Clients may ignore
+ * this advice, though caution is recommended.
+ *
+ * Return: Zero if it is safe to use scratchpads, or One if it is not safe.
+ */
+static inline int ntb_spad_is_unsafe(struct ntb_dev *ntb)
+{
+ if (!ntb->ops->spad_is_unsafe)
+ return 0;
+
+ return ntb->ops->spad_is_unsafe(ntb);
+}
+
+/**
+ * ntb_mw_count() - get the number of scratchpads
+ * @ntb: NTB device context.
+ *
+ * Hardware and topology may support a different number of scratchpads.
+ *
+ * Return: the number of scratchpads.
+ */
+static inline int ntb_spad_count(struct ntb_dev *ntb)
+{
+ return ntb->ops->spad_count(ntb);
+}
+
+/**
+ * ntb_spad_read() - read the local scratchpad register
+ * @ntb: NTB device context.
+ * @idx: Scratchpad index.
+ *
+ * Read the local scratchpad register, and return the value.
+ *
+ * Return: The value of the local scratchpad register.
+ */
+static inline u32 ntb_spad_read(struct ntb_dev *ntb, int idx)
+{
+ return ntb->ops->spad_read(ntb, idx);
+}
+
+/**
+ * ntb_spad_write() - write the local scratchpad register
+ * @ntb: NTB device context.
+ * @idx: Scratchpad index.
+ * @val: Scratchpad value.
+ *
+ * Write the value to the local scratchpad register.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_spad_write(struct ntb_dev *ntb, int idx, u32 val)
+{
+ return ntb->ops->spad_write(ntb, idx, val);
+}
+
+/**
+ * ntb_peer_spad_addr() - address of the peer scratchpad register
+ * @ntb: NTB device context.
+ * @idx: Scratchpad index.
+ * @spad_addr: OUT - The address of the peer scratchpad register.
+ *
+ * Return the address of the peer doorbell register. This may be used, for
+ * example, by drivers that offload memory copy operations to a dma engine.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
+ phys_addr_t *spad_addr)
+{
+ return ntb->ops->peer_spad_addr(ntb, idx, spad_addr);
+}
+
+/**
+ * ntb_peer_spad_read() - read the peer scratchpad register
+ * @ntb: NTB device context.
+ * @idx: Scratchpad index.
+ *
+ * Read the peer scratchpad register, and return the value.
+ *
+ * Return: The value of the local scratchpad register.
+ */
+static inline u32 ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+{
+ return ntb->ops->peer_spad_read(ntb, idx);
+}
+
+/**
+ * ntb_peer_spad_write() - write the peer scratchpad register
+ * @ntb: NTB device context.
+ * @idx: Scratchpad index.
+ * @val: Scratchpad value.
+ *
+ * Write the value to the peer scratchpad register.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_spad_write(struct ntb_dev *ntb, int idx, u32 val)
+{
+ return ntb->ops->peer_spad_write(ntb, idx, val);
+}
+
+#endif
diff --git a/include/linux/ntb_transport.h b/include/linux/ntb_transport.h
new file mode 100644
index 0000000..2862861
--- /dev/null
+++ b/include/linux/ntb_transport.h
@@ -0,0 +1,85 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copy
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * PCIe NTB Transport Linux driver
+ *
+ * Contact Information:
+ * Jon Mason <jon.mason@intel.com>
+ */
+
+struct ntb_transport_qp;
+
+struct ntb_transport_client {
+ struct device_driver driver;
+ int (*probe)(struct device *client_dev);
+ void (*remove)(struct device *client_dev);
+};
+
+int ntb_transport_register_client(struct ntb_transport_client *drvr);
+void ntb_transport_unregister_client(struct ntb_transport_client *drvr);
+int ntb_transport_register_client_dev(char *device_name);
+void ntb_transport_unregister_client_dev(char *device_name);
+
+struct ntb_queue_handlers {
+ void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+ void *data, int len);
+ void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+ void *data, int len);
+ void (*event_handler)(void *data, int status);
+};
+
+unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp);
+unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp);
+struct ntb_transport_qp *
+ntb_transport_create_queue(void *data, struct device *client_dev,
+ const struct ntb_queue_handlers *handlers);
+void ntb_transport_free_queue(struct ntb_transport_qp *qp);
+int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
+ unsigned int len);
+int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
+ unsigned int len);
+void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len);
+void ntb_transport_link_up(struct ntb_transport_qp *qp);
+void ntb_transport_link_down(struct ntb_transport_qp *qp);
+bool ntb_transport_link_query(struct ntb_transport_qp *qp);
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index fb0814c..a6c78e0 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -671,4 +671,10 @@
return error;
}
+static inline unsigned long dir_pages(struct inode *inode)
+{
+ return (unsigned long)(inode->i_size + PAGE_CACHE_SIZE - 1) >>
+ PAGE_CACHE_SHIFT;
+}
+
#endif /* _LINUX_PAGEMAP_H */
diff --git a/include/linux/platform_data/wkup_m3.h b/include/linux/platform_data/wkup_m3.h
new file mode 100644
index 0000000..3f1d77e
--- /dev/null
+++ b/include/linux/platform_data/wkup_m3.h
@@ -0,0 +1,30 @@
+/*
+ * TI Wakeup M3 remote processor platform data
+ *
+ * Copyright (C) 2014-2015 Texas Instruments, Inc.
+ *
+ * Dave Gerlach <d-gerlach@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_PLATFORM_DATA_WKUP_M3_H
+#define _LINUX_PLATFORM_DATA_WKUP_M3_H
+
+struct platform_device;
+
+struct wkup_m3_platform_data {
+ const char *reset_name;
+
+ int (*assert_reset)(struct platform_device *pdev, const char *name);
+ int (*deassert_reset)(struct platform_device *pdev, const char *name);
+};
+
+#endif /* _LINUX_PLATFORM_DATA_WKUP_M3_H */
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 0f1534a..84991f1 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -293,6 +293,8 @@
struct preempt_ops *ops;
};
+void preempt_notifier_inc(void);
+void preempt_notifier_dec(void);
void preempt_notifier_register(struct preempt_notifier *notifier);
void preempt_notifier_unregister(struct preempt_notifier *notifier);
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 78b8a9b..9c4e138 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -36,11 +36,11 @@
#define REMOTEPROC_H
#include <linux/types.h>
-#include <linux/klist.h>
#include <linux/mutex.h>
#include <linux/virtio.h>
#include <linux/completion.h>
#include <linux/idr.h>
+#include <linux/of.h>
/**
* struct resource_table - firmware resource table header
@@ -330,11 +330,13 @@
* @start: power on the device and boot it
* @stop: power off the device
* @kick: kick a virtqueue (virtqueue id given as a parameter)
+ * @da_to_va: optional platform hook to perform address translations
*/
struct rproc_ops {
int (*start)(struct rproc *rproc);
int (*stop)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
+ void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
};
/**
@@ -375,7 +377,7 @@
/**
* struct rproc - represents a physical remote processor device
- * @node: klist node of this rproc object
+ * @node: list node of this rproc object
* @domain: iommu domain
* @name: human readable name of the rproc
* @firmware: name of firmware file to be loaded
@@ -407,7 +409,7 @@
* @has_iommu: flag to indicate if remote processor is behind an MMU
*/
struct rproc {
- struct klist_node node;
+ struct list_head node;
struct iommu_domain *domain;
const char *name;
const char *firmware;
@@ -481,6 +483,7 @@
u32 rsc_offset;
};
+struct rproc *rproc_get_by_phandle(phandle phandle);
struct rproc *rproc_alloc(struct device *dev, const char *name,
const struct rproc_ops *ops,
const char *firmware, int len);
diff --git a/include/linux/rtc/sirfsoc_rtciobrg.h b/include/linux/rtc/sirfsoc_rtciobrg.h
index 2c92e1c..aefd997 100644
--- a/include/linux/rtc/sirfsoc_rtciobrg.h
+++ b/include/linux/rtc/sirfsoc_rtciobrg.h
@@ -9,10 +9,14 @@
#ifndef _SIRFSOC_RTC_IOBRG_H_
#define _SIRFSOC_RTC_IOBRG_H_
+struct regmap_config;
+
extern void sirfsoc_rtc_iobrg_besyncing(void);
extern u32 sirfsoc_rtc_iobrg_readl(u32 addr);
extern void sirfsoc_rtc_iobrg_writel(u32 val, u32 addr);
+struct regmap *devm_regmap_init_iobg(struct device *dev,
+ const struct regmap_config *config);
#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8aa4a25..ae21f15 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -192,8 +192,6 @@
#ifdef CONFIG_SCHED_DEBUG
extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m);
extern void proc_sched_set_task(struct task_struct *p);
-extern void
-print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
#endif
/*
@@ -838,7 +836,7 @@
struct backing_dev_info;
struct reclaim_state;
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+#ifdef CONFIG_SCHED_INFO
struct sched_info {
/* cumulative counters */
unsigned long pcount; /* # of times run on this cpu */
@@ -848,7 +846,7 @@
unsigned long long last_arrival,/* when we last ran on a cpu */
last_queued; /* when we were last queued to run */
};
-#endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
+#endif /* CONFIG_SCHED_INFO */
#ifdef CONFIG_TASK_DELAY_ACCT
struct task_delay_info {
@@ -1397,7 +1395,7 @@
int rcu_tasks_idle_cpu;
#endif /* #ifdef CONFIG_TASKS_RCU */
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+#ifdef CONFIG_SCHED_INFO
struct sched_info sched_info;
#endif
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index afbb1fd..912a7c4 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -123,6 +123,7 @@
__printf(2, 0) int seq_vprintf(struct seq_file *, const char *, va_list args);
int seq_path(struct seq_file *, const struct path *, const char *);
+int seq_file_path(struct seq_file *, struct file *, const char *);
int seq_dentry(struct seq_file *, struct dentry *, const char *);
int seq_path_root(struct seq_file *m, const struct path *path,
const struct path *root, const char *esc);
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h
index 2ca67b5..8df43c9f 100644
--- a/include/linux/sunrpc/bc_xprt.h
+++ b/include/linux/sunrpc/bc_xprt.h
@@ -37,7 +37,6 @@
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
void xprt_destroy_backchannel(struct rpc_xprt *, unsigned int max_reqs);
-int bc_send(struct rpc_rqst *req);
/*
* Determine if a shared backchannel is in use
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 598ba80..131032f 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -56,6 +56,7 @@
struct rpc_rtt * cl_rtt; /* RTO estimator data */
const struct rpc_timeout *cl_timeout; /* Timeout strategy */
+ atomic_t cl_swapper; /* swapfile count */
int cl_nodelen; /* nodename length */
char cl_nodename[UNX_MAXNODENAME+1];
struct rpc_pipe_dir_head cl_pipedir_objects;
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 5f1e6bd..d703f0e 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -205,8 +205,7 @@
*/
struct rpc_task *rpc_new_task(const struct rpc_task_setup *);
struct rpc_task *rpc_run_task(const struct rpc_task_setup *);
-struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req,
- const struct rpc_call_ops *ops);
+struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req);
void rpc_put_task(struct rpc_task *);
void rpc_put_task_async(struct rpc_task *);
void rpc_exit_task(struct rpc_task *);
@@ -269,4 +268,20 @@
}
#endif
+#if IS_ENABLED(CONFIG_SUNRPC_SWAP)
+int rpc_clnt_swap_activate(struct rpc_clnt *clnt);
+void rpc_clnt_swap_deactivate(struct rpc_clnt *clnt);
+#else
+static inline int
+rpc_clnt_swap_activate(struct rpc_clnt *clnt)
+{
+ return -EINVAL;
+}
+
+static inline void
+rpc_clnt_swap_deactivate(struct rpc_clnt *clnt)
+{
+}
+#endif /* CONFIG_SUNRPC_SWAP */
+
#endif /* _LINUX_SUNRPC_SCHED_H_ */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 8b93ef5..0fb9acb 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -133,6 +133,9 @@
void (*close)(struct rpc_xprt *xprt);
void (*destroy)(struct rpc_xprt *xprt);
void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq);
+ int (*enable_swap)(struct rpc_xprt *xprt);
+ void (*disable_swap)(struct rpc_xprt *xprt);
+ void (*inject_disconnect)(struct rpc_xprt *xprt);
};
/*
@@ -180,7 +183,7 @@
atomic_t num_reqs; /* total slots */
unsigned long state; /* transport state */
unsigned char resvport : 1; /* use a reserved port */
- unsigned int swapper; /* we're swapping over this
+ atomic_t swapper; /* we're swapping over this
transport */
unsigned int bind_index; /* bind function index */
@@ -212,7 +215,8 @@
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct svc_serv *bc_serv; /* The RPC service which will */
/* process the callback */
- unsigned int bc_alloc_count; /* Total number of preallocs */
+ int bc_alloc_count; /* Total number of preallocs */
+ atomic_t bc_free_slots;
spinlock_t bc_pa_lock; /* Protects the preallocated
* items */
struct list_head bc_pa_list; /* List of preallocated
@@ -241,6 +245,7 @@
const char *address_strings[RPC_DISPLAY_MAX];
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct dentry *debugfs; /* debugfs directory */
+ atomic_t inject_disconnect;
#endif
};
@@ -327,6 +332,18 @@
return p + xprt->tsh_size;
}
+static inline int
+xprt_enable_swap(struct rpc_xprt *xprt)
+{
+ return xprt->ops->enable_swap(xprt);
+}
+
+static inline void
+xprt_disable_swap(struct rpc_xprt *xprt)
+{
+ xprt->ops->disable_swap(xprt);
+}
+
/*
* Transport switch helper functions
*/
@@ -345,7 +362,6 @@
void xprt_disconnect_done(struct rpc_xprt *xprt);
void xprt_force_disconnect(struct rpc_xprt *xprt);
void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
-int xs_swapper(struct rpc_xprt *xprt, int enable);
bool xprt_lock_connect(struct rpc_xprt *, struct rpc_task *, void *);
void xprt_unlock_connect(struct rpc_xprt *, void *);
@@ -431,6 +447,23 @@
return test_and_set_bit(XPRT_BINDING, &xprt->state);
}
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+extern unsigned int rpc_inject_disconnect;
+static inline void xprt_inject_disconnect(struct rpc_xprt *xprt)
+{
+ if (!rpc_inject_disconnect)
+ return;
+ if (atomic_dec_return(&xprt->inject_disconnect))
+ return;
+ atomic_set(&xprt->inject_disconnect, rpc_inject_disconnect);
+ xprt->ops->inject_disconnect(xprt);
+}
+#else
+static inline void xprt_inject_disconnect(struct rpc_xprt *xprt)
+{
+}
+#endif
+
#endif /* __KERNEL__*/
#endif /* _LINUX_SUNRPC_XPRT_H */
diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h
index c984c85..b176130 100644
--- a/include/linux/sunrpc/xprtrdma.h
+++ b/include/linux/sunrpc/xprtrdma.h
@@ -56,7 +56,8 @@
#define RPCRDMA_INLINE_PAD_THRESH (512)/* payload threshold to pad (bytes) */
-/* memory registration strategies */
+/* Memory registration strategies, by number.
+ * This is part of a kernel / user space API. Do not remove. */
enum rpcrdma_memreg {
RPCRDMA_BOUNCEBUFFERS = 0,
RPCRDMA_REGISTER,
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 795d5fe..fa7bc29 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -188,6 +188,9 @@
void unregister_sysctl_table(struct ctl_table_header * table);
extern int sysctl_init(void);
+
+extern struct ctl_table sysctl_mount_point[];
+
#else /* CONFIG_SYSCTL */
static inline struct ctl_table_header *register_sysctl_table(struct ctl_table * table)
{
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 99382c0..9f65758 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -210,6 +210,10 @@
int __must_check sysfs_move_dir_ns(struct kobject *kobj,
struct kobject *new_parent_kobj,
const void *new_ns);
+int __must_check sysfs_create_mount_point(struct kobject *parent_kobj,
+ const char *name);
+void sysfs_remove_mount_point(struct kobject *parent_kobj,
+ const char *name);
int __must_check sysfs_create_file_ns(struct kobject *kobj,
const struct attribute *attr,
@@ -298,6 +302,17 @@
return 0;
}
+static inline int sysfs_create_mount_point(struct kobject *parent_kobj,
+ const char *name)
+{
+ return 0;
+}
+
+static inline void sysfs_remove_mount_point(struct kobject *parent_kobj,
+ const char *name)
+{
+}
+
static inline int sysfs_create_file_ns(struct kobject *kobj,
const struct attribute *attr,
const void *ns)
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 3741ba1..edbfc9a 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -67,10 +67,13 @@
static inline void tick_broadcast_control(enum tick_broadcast_mode mode) { }
#endif /* BROADCAST */
-#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern int tick_broadcast_oneshot_control(enum tick_broadcast_state state);
#else
-static inline int tick_broadcast_oneshot_control(enum tick_broadcast_state state) { return 0; }
+static inline int tick_broadcast_oneshot_control(enum tick_broadcast_state state)
+{
+ return 0;
+}
#endif
static inline void tick_broadcast_enable(void)
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 3aa72e6..6e191e4 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -145,7 +145,6 @@
}
#endif
-#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
/*
diff --git a/include/linux/virtio_byteorder.h b/include/linux/virtio_byteorder.h
index 51865d0..ce63a2c 100644
--- a/include/linux/virtio_byteorder.h
+++ b/include/linux/virtio_byteorder.h
@@ -3,17 +3,21 @@
#include <linux/types.h>
#include <uapi/linux/virtio_types.h>
-/*
- * Low-level memory accessors for handling virtio in modern little endian and in
- * compatibility native endian format.
- */
+static inline bool virtio_legacy_is_little_endian(void)
+{
+#ifdef __LITTLE_ENDIAN
+ return true;
+#else
+ return false;
+#endif
+}
static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val)
{
if (little_endian)
return le16_to_cpu((__force __le16)val);
else
- return (__force u16)val;
+ return be16_to_cpu((__force __be16)val);
}
static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val)
@@ -21,7 +25,7 @@
if (little_endian)
return (__force __virtio16)cpu_to_le16(val);
else
- return (__force __virtio16)val;
+ return (__force __virtio16)cpu_to_be16(val);
}
static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val)
@@ -29,7 +33,7 @@
if (little_endian)
return le32_to_cpu((__force __le32)val);
else
- return (__force u32)val;
+ return be32_to_cpu((__force __be32)val);
}
static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val)
@@ -37,7 +41,7 @@
if (little_endian)
return (__force __virtio32)cpu_to_le32(val);
else
- return (__force __virtio32)val;
+ return (__force __virtio32)cpu_to_be32(val);
}
static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val)
@@ -45,7 +49,7 @@
if (little_endian)
return le64_to_cpu((__force __le64)val);
else
- return (__force u64)val;
+ return be64_to_cpu((__force __be64)val);
}
static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val)
@@ -53,7 +57,7 @@
if (little_endian)
return (__force __virtio64)cpu_to_le64(val);
else
- return (__force __virtio64)val;
+ return (__force __virtio64)cpu_to_be64(val);
}
#endif /* _LINUX_VIRTIO_BYTEORDER */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 1e306f7..e5ce8ab 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -205,35 +205,41 @@
return 0;
}
+static inline bool virtio_is_little_endian(struct virtio_device *vdev)
+{
+ return virtio_has_feature(vdev, VIRTIO_F_VERSION_1) ||
+ virtio_legacy_is_little_endian();
+}
+
/* Memory accessors */
static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val)
{
- return __virtio16_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __virtio16_to_cpu(virtio_is_little_endian(vdev), val);
}
static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val)
{
- return __cpu_to_virtio16(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio16(virtio_is_little_endian(vdev), val);
}
static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val)
{
- return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __virtio32_to_cpu(virtio_is_little_endian(vdev), val);
}
static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val)
{
- return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio32(virtio_is_little_endian(vdev), val);
}
static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val)
{
- return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __virtio64_to_cpu(virtio_is_little_endian(vdev), val);
}
static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val)
{
- return __cpu_to_virtio64(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio64(virtio_is_little_endian(vdev), val);
}
/* Config space accessors. */
diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index a3fa537..bc6c28d 100644
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -226,33 +226,39 @@
vrh->notify(vrh);
}
+static inline bool vringh_is_little_endian(const struct vringh *vrh)
+{
+ return vrh->little_endian ||
+ virtio_legacy_is_little_endian();
+}
+
static inline u16 vringh16_to_cpu(const struct vringh *vrh, __virtio16 val)
{
- return __virtio16_to_cpu(vrh->little_endian, val);
+ return __virtio16_to_cpu(vringh_is_little_endian(vrh), val);
}
static inline __virtio16 cpu_to_vringh16(const struct vringh *vrh, u16 val)
{
- return __cpu_to_virtio16(vrh->little_endian, val);
+ return __cpu_to_virtio16(vringh_is_little_endian(vrh), val);
}
static inline u32 vringh32_to_cpu(const struct vringh *vrh, __virtio32 val)
{
- return __virtio32_to_cpu(vrh->little_endian, val);
+ return __virtio32_to_cpu(vringh_is_little_endian(vrh), val);
}
static inline __virtio32 cpu_to_vringh32(const struct vringh *vrh, u32 val)
{
- return __cpu_to_virtio32(vrh->little_endian, val);
+ return __cpu_to_virtio32(vringh_is_little_endian(vrh), val);
}
static inline u64 vringh64_to_cpu(const struct vringh *vrh, __virtio64 val)
{
- return __virtio64_to_cpu(vrh->little_endian, val);
+ return __virtio64_to_cpu(vringh_is_little_endian(vrh), val);
}
static inline __virtio64 cpu_to_vringh64(const struct vringh *vrh, u64 val)
{
- return __cpu_to_virtio64(vrh->little_endian, val);
+ return __cpu_to_virtio64(vringh_is_little_endian(vrh), val);
}
#endif /* _LINUX_VRINGH_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a741678..883fe1e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4868,6 +4868,23 @@
struct cfg80211_chan_def *chandef,
enum nl80211_iftype iftype);
+/**
+ * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
+ * @wiphy: the wiphy
+ * @chandef: the channel definition
+ * @iftype: interface type
+ *
+ * Return: %true if there is no secondary channel or the secondary channel(s)
+ * can be used for beaconing (i.e. is not a radar channel etc.). This version
+ * also checks if IR-relaxation conditions apply, to allow beaconing under
+ * more permissive conditions.
+ *
+ * Requires the RTNL to be held.
+ */
+bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef,
+ enum nl80211_iftype iftype);
+
/*
* cfg80211_ch_switch_notify - update wdev channel and notify userspace
* @dev: the device which switched channels
diff --git a/include/net/ip.h b/include/net/ip.h
index 0750a18..d5fe9f2 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -161,6 +161,7 @@
}
/* datagram.c */
+int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
void ip4_datagram_release_cb(struct sock *sk);
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 006983b..34117b8 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -247,10 +247,6 @@
u8 DataDigest; /* [0,1] == [None,CRC32C] */
u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
u32 MaxXmitDataSegmentLength; /* [512..2**24-1] */
- u8 OFMarker; /* [0,1] == [No,Yes] */
- u8 IFMarker; /* [0,1] == [No,Yes] */
- u32 OFMarkInt; /* [1..65535] */
- u32 IFMarkInt; /* [1..65535] */
/*
* iSER specific connection parameters
*/
@@ -531,12 +527,6 @@
u32 exp_statsn;
/* Per connection status sequence number */
u32 stat_sn;
- /* IFMarkInt's Current Value */
- u32 if_marker;
- /* OFMarkInt's Current Value */
- u32 of_marker;
- /* Used for calculating OFMarker offset to next PDU */
- u32 of_marker_offset;
#define IPV6_ADDRESS_SPACE 48
unsigned char login_ip[IPV6_ADDRESS_SPACE];
unsigned char local_ip[IPV6_ADDRESS_SPACE];
@@ -754,10 +744,10 @@
};
struct iscsi_node_acl {
+ struct se_node_acl se_node_acl;
struct iscsi_node_attrib node_attrib;
struct iscsi_node_auth node_auth;
struct iscsi_node_stat_grps node_stat_grps;
- struct se_node_acl se_node_acl;
};
struct iscsi_tpg_attrib {
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 5f12257..1e5c8f9 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -3,18 +3,7 @@
#define TRANSPORT_FLAG_PASSTHROUGH 1
-struct target_backend_cits {
- struct config_item_type tb_dev_cit;
- struct config_item_type tb_dev_attrib_cit;
- struct config_item_type tb_dev_pr_cit;
- struct config_item_type tb_dev_wwn_cit;
- struct config_item_type tb_dev_alua_tg_pt_gps_cit;
- struct config_item_type tb_dev_stat_cit;
-};
-
-struct se_subsystem_api {
- struct list_head sub_api_list;
-
+struct target_backend_ops {
char name[16];
char inquiry_prod[16];
char inquiry_rev[4];
@@ -52,7 +41,7 @@
int (*format_prot)(struct se_device *);
void (*free_prot)(struct se_device *);
- struct target_backend_cits tb_cits;
+ struct configfs_attribute **tb_dev_attrib_attrs;
};
struct sbc_ops {
@@ -60,12 +49,12 @@
u32, enum dma_data_direction);
sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
- sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
- sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
+ sense_reason_t (*execute_unmap)(struct se_cmd *cmd,
+ sector_t lba, sector_t nolb);
};
-int transport_subsystem_register(struct se_subsystem_api *);
-void transport_subsystem_release(struct se_subsystem_api *);
+int transport_backend_register(const struct target_backend_ops *);
+void target_backend_unregister(const struct target_backend_ops *);
void target_complete_cmd(struct se_cmd *, u8);
void target_complete_cmd_with_length(struct se_cmd *, u8, int);
@@ -79,22 +68,19 @@
u32 sbc_get_device_rev(struct se_device *dev);
u32 sbc_get_device_type(struct se_device *dev);
sector_t sbc_get_write_same_sectors(struct se_cmd *cmd);
-sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
- sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
- sector_t lba, sector_t nolb),
- void *priv);
void sbc_dif_generate(struct se_cmd *);
-sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int,
+sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int,
unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int,
- unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_read_strip(struct se_cmd *);
-
+void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool,
+ struct scatterlist *, int);
void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
+extern struct configfs_attribute *sbc_attrib_attrs[];
+extern struct configfs_attribute *passthrough_attrib_attrs[];
+
/* core helpers also used by command snooping in pscsi */
void *transport_kmap_data_sg(struct se_cmd *);
void transport_kunmap_data_sg(struct se_cmd *);
@@ -103,39 +89,7 @@
sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *,
struct scatterlist *, u32, struct scatterlist *, u32);
-void array_free(void *array, int n);
-
-/* From target_core_configfs.c to setup default backend config_item_types */
-void target_core_setup_sub_cits(struct se_subsystem_api *);
-
-/* attribute helpers from target_core_device.c for backend drivers */
-bool se_dev_check_wce(struct se_device *);
-int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
-int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
-int se_dev_set_unmap_granularity(struct se_device *, u32);
-int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
-int se_dev_set_max_write_same_len(struct se_device *, u32);
-int se_dev_set_emulate_model_alias(struct se_device *, int);
-int se_dev_set_emulate_dpo(struct se_device *, int);
-int se_dev_set_emulate_fua_write(struct se_device *, int);
-int se_dev_set_emulate_fua_read(struct se_device *, int);
-int se_dev_set_emulate_write_cache(struct se_device *, int);
-int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
-int se_dev_set_emulate_tas(struct se_device *, int);
-int se_dev_set_emulate_tpu(struct se_device *, int);
-int se_dev_set_emulate_tpws(struct se_device *, int);
-int se_dev_set_emulate_caw(struct se_device *, int);
-int se_dev_set_emulate_3pc(struct se_device *, int);
-int se_dev_set_pi_prot_type(struct se_device *, int);
-int se_dev_set_pi_prot_format(struct se_device *, int);
-int se_dev_set_enforce_pr_isids(struct se_device *, int);
-int se_dev_set_force_pr_aptpl(struct se_device *, int);
-int se_dev_set_is_nonrot(struct se_device *, int);
-int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
-int se_dev_set_queue_depth(struct se_device *, u32);
-int se_dev_set_max_sectors(struct se_device *, u32);
-int se_dev_set_optimal_sectors(struct se_device *, u32);
-int se_dev_set_block_size(struct se_device *, u32);
+bool target_lun_is_rdonly(struct se_cmd *);
sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
diff --git a/include/target/target_core_backend_configfs.h b/include/target/target_core_backend_configfs.h
deleted file mode 100644
index 186f7a9..0000000
--- a/include/target/target_core_backend_configfs.h
+++ /dev/null
@@ -1,118 +0,0 @@
-#ifndef TARGET_CORE_BACKEND_CONFIGFS_H
-#define TARGET_CORE_BACKEND_CONFIGFS_H
-
-#include <target/configfs_macros.h>
-
-#define DEF_TB_DEV_ATTRIB_SHOW(_backend, _name) \
-static ssize_t _backend##_dev_show_attr_##_name( \
- struct se_dev_attrib *da, \
- char *page) \
-{ \
- return snprintf(page, PAGE_SIZE, "%u\n", \
- (u32)da->da_dev->dev_attrib._name); \
-}
-
-#define DEF_TB_DEV_ATTRIB_STORE(_backend, _name) \
-static ssize_t _backend##_dev_store_attr_##_name( \
- struct se_dev_attrib *da, \
- const char *page, \
- size_t count) \
-{ \
- unsigned long val; \
- int ret; \
- \
- ret = kstrtoul(page, 0, &val); \
- if (ret < 0) { \
- pr_err("kstrtoul() failed with ret: %d\n", ret); \
- return -EINVAL; \
- } \
- ret = se_dev_set_##_name(da->da_dev, (u32)val); \
- \
- return (!ret) ? count : -EINVAL; \
-}
-
-#define DEF_TB_DEV_ATTRIB(_backend, _name) \
-DEF_TB_DEV_ATTRIB_SHOW(_backend, _name); \
-DEF_TB_DEV_ATTRIB_STORE(_backend, _name);
-
-#define DEF_TB_DEV_ATTRIB_RO(_backend, name) \
-DEF_TB_DEV_ATTRIB_SHOW(_backend, name);
-
-CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib);
-#define TB_DEV_ATTR(_backend, _name, _mode) \
-static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _backend##_dev_show_attr_##_name, \
- _backend##_dev_store_attr_##_name);
-
-#define TB_DEV_ATTR_RO(_backend, _name) \
-static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _backend##_dev_show_attr_##_name);
-
-/*
- * Default list of target backend device attributes as defined by
- * struct se_dev_attrib
- */
-
-#define DEF_TB_DEFAULT_ATTRIBS(_backend) \
- DEF_TB_DEV_ATTRIB(_backend, emulate_model_alias); \
- TB_DEV_ATTR(_backend, emulate_model_alias, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_dpo); \
- TB_DEV_ATTR(_backend, emulate_dpo, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_fua_write); \
- TB_DEV_ATTR(_backend, emulate_fua_write, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_fua_read); \
- TB_DEV_ATTR(_backend, emulate_fua_read, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_write_cache); \
- TB_DEV_ATTR(_backend, emulate_write_cache, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_ua_intlck_ctrl); \
- TB_DEV_ATTR(_backend, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tas); \
- TB_DEV_ATTR(_backend, emulate_tas, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tpu); \
- TB_DEV_ATTR(_backend, emulate_tpu, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_tpws); \
- TB_DEV_ATTR(_backend, emulate_tpws, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_caw); \
- TB_DEV_ATTR(_backend, emulate_caw, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_3pc); \
- TB_DEV_ATTR(_backend, emulate_3pc, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, pi_prot_type); \
- TB_DEV_ATTR(_backend, pi_prot_type, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_pi_prot_type); \
- TB_DEV_ATTR_RO(_backend, hw_pi_prot_type); \
- DEF_TB_DEV_ATTRIB(_backend, pi_prot_format); \
- TB_DEV_ATTR(_backend, pi_prot_format, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, enforce_pr_isids); \
- TB_DEV_ATTR(_backend, enforce_pr_isids, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, is_nonrot); \
- TB_DEV_ATTR(_backend, is_nonrot, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, emulate_rest_reord); \
- TB_DEV_ATTR(_backend, emulate_rest_reord, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, force_pr_aptpl); \
- TB_DEV_ATTR(_backend, force_pr_aptpl, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_block_size); \
- TB_DEV_ATTR_RO(_backend, hw_block_size); \
- DEF_TB_DEV_ATTRIB(_backend, block_size); \
- TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors); \
- TB_DEV_ATTR_RO(_backend, hw_max_sectors); \
- DEF_TB_DEV_ATTRIB(_backend, optimal_sectors); \
- TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth); \
- TB_DEV_ATTR_RO(_backend, hw_queue_depth); \
- DEF_TB_DEV_ATTRIB(_backend, queue_depth); \
- TB_DEV_ATTR(_backend, queue_depth, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_unmap_lba_count); \
- TB_DEV_ATTR(_backend, max_unmap_lba_count, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_unmap_block_desc_count); \
- TB_DEV_ATTR(_backend, max_unmap_block_desc_count, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, unmap_granularity); \
- TB_DEV_ATTR(_backend, unmap_granularity, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, unmap_granularity_alignment); \
- TB_DEV_ATTR(_backend, unmap_granularity_alignment, S_IRUGO | S_IWUSR); \
- DEF_TB_DEV_ATTRIB(_backend, max_write_same_len); \
- TB_DEV_ATTR(_backend, max_write_same_len, S_IRUGO | S_IWUSR);
-
-#endif /* TARGET_CORE_BACKEND_CONFIGFS_H */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index aec6f6a..17ae2d6 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -9,12 +9,8 @@
#include <net/sock.h>
#include <net/tcp.h>
-#define TARGET_CORE_MOD_VERSION "v4.1.0"
-#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
+#define TARGET_CORE_VERSION "v5.0"
-/* Maximum Number of LUNs per Target Portal Group */
-/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
-#define TRANSPORT_MAX_LUNS_PER_TPG 256
/*
* Maximum size of a CDB that can be stored in se_cmd without allocating
* memory dynamically for the CDB.
@@ -70,12 +66,6 @@
#define DA_MAX_WRITE_SAME_LEN 0
/* Use a model alias based on the configfs backend device name */
#define DA_EMULATE_MODEL_ALIAS 0
-/* Emulation for Direct Page Out */
-#define DA_EMULATE_DPO 0
-/* Emulation for Forced Unit Access WRITEs */
-#define DA_EMULATE_FUA_WRITE 1
-/* Emulation for Forced Unit Access READs */
-#define DA_EMULATE_FUA_READ 0
/* Emulation for WriteCache and SYNCHRONIZE_CACHE */
#define DA_EMULATE_WRITE_CACHE 0
/* Emulation for UNIT ATTENTION Interlock Control */
@@ -116,18 +106,6 @@
HBA_FLAGS_PSCSI_MODE = 0x02,
};
-/* struct se_lun->lun_status */
-enum transport_lun_status_table {
- TRANSPORT_LUN_STATUS_FREE = 0,
- TRANSPORT_LUN_STATUS_ACTIVE = 1,
-};
-
-/* struct se_portal_group->se_tpg_type */
-enum transport_tpg_type_table {
- TRANSPORT_TPG_TYPE_NORMAL = 0,
- TRANSPORT_TPG_TYPE_DISCOVERY = 1,
-};
-
/* Special transport agnostic struct se_cmd->t_states */
enum transport_state_table {
TRANSPORT_NO_STATE = 0,
@@ -158,14 +136,13 @@
SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000,
SCF_COMPARE_AND_WRITE = 0x00080000,
SCF_COMPARE_AND_WRITE_POST = 0x00100000,
+ SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000,
};
/* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
enum transport_lunflags_table {
- TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
- TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
- TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
- TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
+ TRANSPORT_LUNFLAGS_READ_ONLY = 0x01,
+ TRANSPORT_LUNFLAGS_READ_WRITE = 0x02,
};
/*
@@ -314,22 +291,13 @@
struct se_device *tg_pt_gp_dev;
struct config_group tg_pt_gp_group;
struct list_head tg_pt_gp_list;
- struct list_head tg_pt_gp_mem_list;
- struct se_port *tg_pt_gp_alua_port;
+ struct list_head tg_pt_gp_lun_list;
+ struct se_lun *tg_pt_gp_alua_lun;
struct se_node_acl *tg_pt_gp_alua_nacl;
struct delayed_work tg_pt_gp_transition_work;
struct completion *tg_pt_gp_transition_complete;
};
-struct t10_alua_tg_pt_gp_member {
- bool tg_pt_gp_assoc;
- atomic_t tg_pt_gp_mem_ref_cnt;
- spinlock_t tg_pt_gp_mem_lock;
- struct t10_alua_tg_pt_gp *tg_pt_gp;
- struct se_port *tg_pt;
- struct list_head tg_pt_gp_mem_list;
-};
-
struct t10_vpd {
unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
int protocol_identifier_set;
@@ -374,15 +342,16 @@
int pr_res_scope;
/* Used for fabric initiator WWPNs using a ISID */
bool isid_present_at_reg;
- u32 pr_res_mapped_lun;
- u32 pr_aptpl_target_lun;
+ u64 pr_res_mapped_lun;
+ u64 pr_aptpl_target_lun;
+ u16 tg_pt_sep_rtpi;
u32 pr_res_generation;
u64 pr_reg_bin_isid;
u64 pr_res_key;
atomic_t pr_res_holders;
struct se_node_acl *pr_reg_nacl;
+ /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */
struct se_dev_entry *pr_reg_deve;
- struct se_lun *pr_reg_tg_pt_lun;
struct list_head pr_reg_list;
struct list_head pr_reg_abort_list;
struct list_head pr_reg_aptpl_list;
@@ -422,7 +391,7 @@
u8 response;
int call_transport;
/* Reference to ITT that Task Mgmt should be performed */
- u32 ref_task_tag;
+ u64 ref_task_tag;
void *fabric_tmr_ptr;
struct se_cmd *task_cmd;
struct se_device *tmr_dev;
@@ -475,6 +444,7 @@
u8 scsi_asc;
u8 scsi_ascq;
u16 scsi_sense_length;
+ u64 tag; /* SAM command identifier aka task tag */
/* Delay for ALUA Active/NonOptimized state access in milliseconds */
int alua_nonop_delay;
/* See include/linux/dma-mapping.h */
@@ -493,7 +463,7 @@
/* Total size in bytes associated with command */
u32 data_length;
u32 residual_count;
- u32 orig_fe_lun;
+ u64 orig_fe_lun;
/* Persistent Reservation key */
u64 pr_res_key;
/* Used for sense data */
@@ -501,7 +471,6 @@
struct list_head se_delayed_node;
struct list_head se_qf_node;
struct se_device *se_dev;
- struct se_dev_entry *se_deve;
struct se_lun *se_lun;
/* Only used for internal passthrough and legacy TCM fabric modules */
struct se_session *se_sess;
@@ -511,9 +480,8 @@
struct kref cmd_kref;
const struct target_core_fabric_ops *se_tfo;
sense_reason_t (*execute_cmd)(struct se_cmd *);
- sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *,
- u32, enum dma_data_direction);
sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool);
+ void *protocol_data;
unsigned char *t_task_cdb;
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
@@ -569,7 +537,6 @@
struct se_ua {
u8 ua_asc;
u8 ua_ascq;
- struct se_node_acl *ua_nacl;
struct list_head ua_nacl_list;
};
@@ -585,10 +552,10 @@
char acl_tag[MAX_ACL_TAG_SIZE];
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
atomic_t acl_pr_ref_count;
- struct se_dev_entry **device_list;
+ struct hlist_head lun_entry_hlist;
struct se_session *nacl_sess;
struct se_portal_group *se_tpg;
- spinlock_t device_list_lock;
+ struct mutex lun_entry_mutex;
spinlock_t nacl_sess_lock;
struct config_group acl_group;
struct config_group acl_attrib_group;
@@ -632,33 +599,37 @@
struct se_lun_acl {
char initiatorname[TRANSPORT_IQN_LEN];
- u32 mapped_lun;
+ u64 mapped_lun;
struct se_node_acl *se_lun_nacl;
struct se_lun *se_lun;
- struct list_head lacl_list;
struct config_group se_lun_group;
struct se_ml_stat_grps ml_stat_grps;
};
struct se_dev_entry {
- bool def_pr_registered;
/* See transport_lunflags_table */
- u32 lun_flags;
- u32 mapped_lun;
- u32 total_cmds;
+ u64 mapped_lun;
u64 pr_res_key;
u64 creation_time;
+ u32 lun_flags;
u32 attach_count;
- u64 read_bytes;
- u64 write_bytes;
+ atomic_long_t total_cmds;
+ atomic_long_t read_bytes;
+ atomic_long_t write_bytes;
atomic_t ua_count;
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
- atomic_t pr_ref_count;
- struct se_lun_acl *se_lun_acl;
+ struct kref pr_kref;
+ struct completion pr_comp;
+ struct se_lun_acl __rcu *se_lun_acl;
spinlock_t ua_lock;
- struct se_lun *se_lun;
+ struct se_lun __rcu *se_lun;
+#define DEF_PR_REG_ACTIVE 1
+ unsigned long deve_flags;
struct list_head alua_port_list;
+ struct list_head lun_link;
struct list_head ua_list;
+ struct hlist_node link;
+ struct rcu_head rcu_head;
};
struct se_dev_attrib {
@@ -703,25 +674,48 @@
struct config_group scsi_transport_group;
};
+struct scsi_port_stats {
+ atomic_long_t cmd_pdus;
+ atomic_long_t tx_data_octets;
+ atomic_long_t rx_data_octets;
+};
+
struct se_lun {
+ u64 unpacked_lun;
#define SE_LUN_LINK_MAGIC 0xffff7771
u32 lun_link_magic;
- /* See transport_lun_status_table */
- enum transport_lun_status_table lun_status;
u32 lun_access;
u32 lun_flags;
- u32 unpacked_lun;
+ u32 lun_index;
+
+ /* RELATIVE TARGET PORT IDENTIFER */
+ u16 lun_rtpi;
atomic_t lun_acl_count;
- spinlock_t lun_acl_lock;
- spinlock_t lun_sep_lock;
- struct completion lun_shutdown_comp;
- struct list_head lun_acl_list;
- struct se_device *lun_se_dev;
- struct se_port *lun_sep;
+ struct se_device __rcu *lun_se_dev;
+
+ struct list_head lun_deve_list;
+ spinlock_t lun_deve_lock;
+
+ /* ALUA state */
+ int lun_tg_pt_secondary_stat;
+ int lun_tg_pt_secondary_write_md;
+ atomic_t lun_tg_pt_secondary_offline;
+ struct mutex lun_tg_pt_md_mutex;
+
+ /* ALUA target port group linkage */
+ struct list_head lun_tg_pt_gp_link;
+ struct t10_alua_tg_pt_gp *lun_tg_pt_gp;
+ spinlock_t lun_tg_pt_gp_lock;
+
+ struct se_portal_group *lun_tpg;
+ struct scsi_port_stats lun_stats;
struct config_group lun_group;
struct se_port_stat_grps port_stat_grps;
struct completion lun_ref_comp;
struct percpu_ref lun_ref;
+ struct list_head lun_dev_link;
+ struct hlist_node link;
+ struct rcu_head rcu_head;
};
struct se_dev_stat_grps {
@@ -744,7 +738,6 @@
#define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
#define DF_USING_UDEV_PATH 0x00000008
#define DF_USING_ALIAS 0x00000010
- u32 dev_port_count;
/* Physical device queue depth */
u32 queue_depth;
/* Used for SPC-2 reservations enforce of ISIDs */
@@ -761,7 +754,7 @@
atomic_t dev_ordered_id;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
- int export_count;
+ u32 export_count;
spinlock_t delayed_cmd_lock;
spinlock_t execute_task_lock;
spinlock_t dev_reservation_lock;
@@ -803,12 +796,15 @@
#define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
unsigned char udev_path[SE_UDEV_PATH_LEN];
/* Pointer to template of function pointers for transport */
- struct se_subsystem_api *transport;
+ const struct target_backend_ops *transport;
/* Linked list for struct se_hba struct se_device list */
struct list_head dev_list;
struct se_lun xcopy_lun;
/* Protection Information */
int prot_length;
+ /* For se_lun->lun_se_dev RCU read-side critical access */
+ u32 hba_index;
+ struct rcu_head rcu_head;
};
struct se_hba {
@@ -825,33 +821,7 @@
spinlock_t device_lock;
struct config_group hba_group;
struct mutex hba_access_mutex;
- struct se_subsystem_api *transport;
-};
-
-struct scsi_port_stats {
- u64 cmd_pdus;
- u64 tx_data_octets;
- u64 rx_data_octets;
-};
-
-struct se_port {
- /* RELATIVE TARGET PORT IDENTIFER */
- u16 sep_rtpi;
- int sep_tg_pt_secondary_stat;
- int sep_tg_pt_secondary_write_md;
- u32 sep_index;
- struct scsi_port_stats sep_stats;
- /* Used for ALUA Target Port Groups membership */
- atomic_t sep_tg_pt_secondary_offline;
- /* Used for PR ALL_TG_PT=1 */
- atomic_t sep_tg_pt_ref_cnt;
- spinlock_t sep_alua_lock;
- struct mutex sep_tg_pt_md_mutex;
- struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
- struct se_lun *sep_lun;
- struct se_portal_group *sep_tpg;
- struct list_head sep_alua_list;
- struct list_head sep_list;
+ struct target_backend *backend;
};
struct se_tpg_np {
@@ -860,24 +830,26 @@
};
struct se_portal_group {
- /* Type of target portal group, see transport_tpg_type_table */
- enum transport_tpg_type_table se_tpg_type;
+ /*
+ * PROTOCOL IDENTIFIER value per SPC4, 7.5.1.
+ *
+ * Negative values can be used by fabric drivers for internal use TPGs.
+ */
+ int proto_id;
/* Number of ACLed Initiator Nodes for this TPG */
u32 num_node_acls;
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
atomic_t tpg_pr_ref_count;
/* Spinlock for adding/removing ACLed Nodes */
- spinlock_t acl_node_lock;
+ struct mutex acl_node_mutex;
/* Spinlock for adding/removing sessions */
spinlock_t session_lock;
- spinlock_t tpg_lun_lock;
- /* Pointer to $FABRIC_MOD portal group */
- void *se_tpg_fabric_ptr;
+ struct mutex tpg_lun_mutex;
struct list_head se_tpg_node;
/* linked list for initiator ACL list */
struct list_head acl_node_list;
- struct se_lun **tpg_lun_list;
- struct se_lun tpg_virt_lun0;
+ struct hlist_head tpg_lun_hlist;
+ struct se_lun *tpg_virt_lun0;
/* List of TCM sessions associated wth this TPG */
struct list_head tpg_sess_list;
/* Pointer to $FABRIC_MOD dependent code */
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
deleted file mode 100644
index b99c011..0000000
--- a/include/target/target_core_configfs.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#define TARGET_CORE_CONFIGFS_VERSION TARGET_CORE_MOD_VERSION
-
-#define TARGET_CORE_CONFIG_ROOT "/sys/kernel/config"
-
-#define TARGET_CORE_NAME_MAX_LEN 64
-#define TARGET_FABRIC_NAME_SIZE 32
-
-struct target_fabric_configfs_template {
- struct config_item_type tfc_discovery_cit;
- struct config_item_type tfc_wwn_cit;
- struct config_item_type tfc_wwn_fabric_stats_cit;
- struct config_item_type tfc_tpg_cit;
- struct config_item_type tfc_tpg_base_cit;
- struct config_item_type tfc_tpg_lun_cit;
- struct config_item_type tfc_tpg_port_cit;
- struct config_item_type tfc_tpg_port_stat_cit;
- struct config_item_type tfc_tpg_np_cit;
- struct config_item_type tfc_tpg_np_base_cit;
- struct config_item_type tfc_tpg_attrib_cit;
- struct config_item_type tfc_tpg_auth_cit;
- struct config_item_type tfc_tpg_param_cit;
- struct config_item_type tfc_tpg_nacl_cit;
- struct config_item_type tfc_tpg_nacl_base_cit;
- struct config_item_type tfc_tpg_nacl_attrib_cit;
- struct config_item_type tfc_tpg_nacl_auth_cit;
- struct config_item_type tfc_tpg_nacl_param_cit;
- struct config_item_type tfc_tpg_nacl_stat_cit;
- struct config_item_type tfc_tpg_mappedlun_cit;
- struct config_item_type tfc_tpg_mappedlun_stat_cit;
-};
-
-struct target_fabric_configfs {
- char tf_name[TARGET_FABRIC_NAME_SIZE];
- atomic_t tf_access_cnt;
- struct list_head tf_list;
- struct config_group tf_group;
- struct config_group tf_disc_group;
- struct config_group *tf_default_groups[2];
- /* Pointer to fabric's config_item */
- struct config_item *tf_fabric;
- /* Passed from fabric modules */
- struct config_item_type *tf_fabric_cit;
- /* Pointer to fabric's struct module */
- struct module *tf_module;
- struct target_core_fabric_ops tf_ops;
- struct target_fabric_configfs_template tf_cit_tmpl;
-};
-
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 0f4dc37..18afef9 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -4,20 +4,11 @@
struct target_core_fabric_ops {
struct module *module;
const char *name;
+ size_t node_acl_size;
char *(*get_fabric_name)(void);
- u8 (*get_fabric_proto_ident)(struct se_portal_group *);
char *(*tpg_get_wwn)(struct se_portal_group *);
u16 (*tpg_get_tag)(struct se_portal_group *);
u32 (*tpg_get_default_depth)(struct se_portal_group *);
- u32 (*tpg_get_pr_transport_id)(struct se_portal_group *,
- struct se_node_acl *,
- struct t10_pr_registration *, int *,
- unsigned char *);
- u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *,
- struct se_node_acl *,
- struct t10_pr_registration *, int *);
- char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *,
- const char *, u32 *, char **);
int (*tpg_check_demo_mode)(struct se_portal_group *);
int (*tpg_check_demo_mode_cache)(struct se_portal_group *);
int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *);
@@ -36,10 +27,6 @@
* WRITE_STRIP and READ_INSERT operations.
*/
int (*tpg_check_prot_fabric_only)(struct se_portal_group *);
- struct se_node_acl *(*tpg_alloc_fabric_acl)(
- struct se_portal_group *);
- void (*tpg_release_fabric_acl)(struct se_portal_group *,
- struct se_node_acl *);
u32 (*tpg_get_inst_index)(struct se_portal_group *);
/*
* Optional to release struct se_cmd and fabric dependent allocated
@@ -50,7 +37,6 @@
*/
int (*check_stop_free)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *);
- void (*put_session)(struct se_session *);
/*
* Called with spin_lock_bh(struct se_portal_group->session_lock held.
*/
@@ -66,7 +52,6 @@
int (*write_pending)(struct se_cmd *);
int (*write_pending_status)(struct se_cmd *);
void (*set_default_node_attributes)(struct se_node_acl *);
- u32 (*get_task_tag)(struct se_cmd *);
int (*get_cmd_state)(struct se_cmd *);
int (*queue_data_in)(struct se_cmd *);
int (*queue_status)(struct se_cmd *);
@@ -88,9 +73,8 @@
struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *,
struct config_group *, const char *);
void (*fabric_drop_np)(struct se_tpg_np *);
- struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *,
- struct config_group *, const char *);
- void (*fabric_drop_nodeacl)(struct se_node_acl *);
+ int (*fabric_init_nodeacl)(struct se_node_acl *, const char *);
+ void (*fabric_cleanup_nodeacl)(struct se_node_acl *);
struct configfs_attribute **tfc_discovery_attrs;
struct configfs_attribute **tfc_wwn_attrs;
@@ -132,16 +116,16 @@
void transport_init_se_cmd(struct se_cmd *,
const struct target_core_fabric_ops *,
struct se_session *, u32, int, int, unsigned char *);
-sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u32);
+sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u64);
sense_reason_t target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *);
int target_submit_cmd_map_sgls(struct se_cmd *, struct se_session *,
- unsigned char *, unsigned char *, u32, u32, int, int, int,
+ unsigned char *, unsigned char *, u64, u32, int, int, int,
struct scatterlist *, u32, struct scatterlist *, u32,
struct scatterlist *, u32);
int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
- unsigned char *, u32, u32, int, int, int);
+ unsigned char *, u64, u32, int, int, int);
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
- unsigned char *sense, u32 unpacked_lun,
+ unsigned char *sense, u64 unpacked_lun,
void *fabric_tmr_ptr, unsigned char tm_type,
gfp_t, unsigned int, int);
int transport_handle_cdb_direct(struct se_cmd *);
@@ -155,8 +139,8 @@
int transport_check_aborted_status(struct se_cmd *, int);
int transport_send_check_condition_and_sense(struct se_cmd *,
sense_reason_t, int);
-int target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
-int target_put_sess_cmd(struct se_session *, struct se_cmd *);
+int target_get_sess_cmd(struct se_cmd *, bool);
+int target_put_sess_cmd(struct se_cmd *);
void target_sess_cmd_list_set_waiting(struct se_session *);
void target_wait_for_sess_cmds(struct se_session *);
@@ -167,52 +151,19 @@
int transport_generic_handle_tmr(struct se_cmd *);
void transport_generic_request_failure(struct se_cmd *, sense_reason_t);
void __target_execute_cmd(struct se_cmd *);
-int transport_lookup_tmr_lun(struct se_cmd *, u32);
+int transport_lookup_tmr_lun(struct se_cmd *, u64);
struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
unsigned char *);
struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *,
unsigned char *);
-void core_tpg_clear_object_luns(struct se_portal_group *);
-struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *,
- struct se_node_acl *, const char *, u32);
-int core_tpg_del_initiator_node_acl(struct se_portal_group *,
- struct se_node_acl *, int);
int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *,
unsigned char *, u32, int);
int core_tpg_set_initiator_node_tag(struct se_portal_group *,
struct se_node_acl *, const char *);
-int core_tpg_register(const struct target_core_fabric_ops *,
- struct se_wwn *, struct se_portal_group *, void *, int);
+int core_tpg_register(struct se_wwn *, struct se_portal_group *, int);
int core_tpg_deregister(struct se_portal_group *);
-/* SAS helpers */
-u8 sas_get_fabric_proto_ident(struct se_portal_group *);
-u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
-/* FC helpers */
-u8 fc_get_fabric_proto_ident(struct se_portal_group *);
-u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
-/* iSCSI helpers */
-u8 iscsi_get_fabric_proto_ident(struct se_portal_group *);
-u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *, unsigned char *);
-u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
- struct t10_pr_registration *, int *);
-char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *,
- u32 *, char **);
-
/*
* The LIO target core uses DMA_TO_DEVICE to mean that data is going
* to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index d3f4832..b6fce90 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -313,6 +313,9 @@
#define AMDGPU_VA_OP_MAP 1
#define AMDGPU_VA_OP_UNMAP 2
+/* Delay the page table update till the next CS */
+#define AMDGPU_VM_DELAY_UPDATE (1 << 0)
+
/* Mapping flags */
/* readable mapping */
#define AMDGPU_VM_PAGE_READABLE (1 << 1)
@@ -348,6 +351,7 @@
#define AMDGPU_CHUNK_ID_IB 0x01
#define AMDGPU_CHUNK_ID_FENCE 0x02
+#define AMDGPU_CHUNK_ID_DEPENDENCIES 0x03
struct drm_amdgpu_cs_chunk {
uint32_t chunk_id;
@@ -399,6 +403,14 @@
uint32_t ring;
};
+struct drm_amdgpu_cs_chunk_dep {
+ uint32_t ip_type;
+ uint32_t ip_instance;
+ uint32_t ring;
+ uint32_t ctx_id;
+ uint64_t handle;
+};
+
struct drm_amdgpu_cs_chunk_fence {
uint32_t handle;
uint32_t offset;
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 25084a0..c9aca04 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -755,4 +755,7 @@
uint64_t dummy4;
};
+/* Device ioctls: */
+#define FUSE_DEV_IOC_CLONE _IOR(229, 0, uint32_t)
+
#endif /* _LINUX_FUSE_H */
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 50ae243..3cb5e1d 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -50,6 +50,12 @@
#define TUNGETFILTER _IOR('T', 219, struct sock_fprog)
#define TUNSETVNETLE _IOW('T', 220, int)
#define TUNGETVNETLE _IOR('T', 221, int)
+/* The TUNSETVNETBE and TUNGETVNETBE ioctls are for cross-endian support on
+ * little-endian hosts. Not all kernel configurations support them, but all
+ * configurations that support SET also support GET.
+ */
+#define TUNSETVNETBE _IOW('T', 222, int)
+#define TUNGETVNETBE _IOR('T', 223, int)
/* TUNSETIFF ifr flags */
#define IFF_TUN 0x0001
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index bb6a5b4..ab373191 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -103,6 +103,20 @@
/* Get accessor: reads index, writes value in num */
#define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state)
+/* Set the vring byte order in num. Valid values are VHOST_VRING_LITTLE_ENDIAN
+ * or VHOST_VRING_BIG_ENDIAN (other values return -EINVAL).
+ * The byte order cannot be changed while the device is active: trying to do so
+ * returns -EBUSY.
+ * This is a legacy only API that is simply ignored when VIRTIO_F_VERSION_1 is
+ * set.
+ * Not all kernel configurations support this ioctl, but all configurations that
+ * support SET also support GET.
+ */
+#define VHOST_VRING_LITTLE_ENDIAN 0
+#define VHOST_VRING_BIG_ENDIAN 1
+#define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state)
+#define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state)
+
/* The following ioctls use eventfd file descriptors to signal and poll
* for events. */
diff --git a/init/Kconfig b/init/Kconfig
index bcc41bd..af09b4f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -435,6 +435,7 @@
config TASK_DELAY_ACCT
bool "Enable per-task delay accounting"
depends on TASKSTATS
+ select SCHED_INFO
help
Collect information on time spent by a task waiting for system
resources like cpu, synchronous block I/O completion and swapping
@@ -820,7 +821,7 @@
config LOG_BUF_SHIFT
int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
- range 12 21
+ range 12 25
default 17
depends on PRINTK
help
diff --git a/kernel/Makefile b/kernel/Makefile
index 60c302c..43c4c92 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -137,7 +137,7 @@
ifneq ($(wildcard $(obj)/.x509.list),)
ifneq ($(shell cat $(obj)/.x509.list),$(X509_CERTIFICATES))
-$(info X.509 certificate list changed)
+$(warning X.509 certificate list changed to "$(X509_CERTIFICATES)" from "$(shell cat $(obj)/.x509.list)")
$(shell rm $(obj)/.x509.list)
endif
endif
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 09c6564..e85bdfd 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1021,8 +1021,7 @@
* for strings that are too long, we should not have created
* any.
*/
- if (unlikely((len == 0) || len > MAX_ARG_STRLEN - 1)) {
- WARN_ON(1);
+ if (WARN_ON_ONCE(len < 0 || len > MAX_ARG_STRLEN - 1)) {
send_sig(SIGKILL, current, 0);
return -1;
}
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 9ef9fc8..f89d929 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1939,8 +1939,6 @@
.kill_sb = cgroup_kill_sb,
};
-static struct kobject *cgroup_kobj;
-
/**
* task_cgroup_path - cgroup path of a task in the first cgroup hierarchy
* @task: target task
@@ -5070,13 +5068,13 @@
ss->bind(init_css_set.subsys[ssid]);
}
- cgroup_kobj = kobject_create_and_add("cgroup", fs_kobj);
- if (!cgroup_kobj)
- return -ENOMEM;
+ err = sysfs_create_mount_point(fs_kobj, "cgroup");
+ if (err)
+ return err;
err = register_filesystem(&cgroup_fs_type);
if (err < 0) {
- kobject_put(cgroup_kobj);
+ sysfs_remove_mount_point(fs_kobj, "cgroup");
return err;
}
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 9c9c9fa..6a37454 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -21,6 +21,7 @@
#include <linux/suspend.h>
#include <linux/lockdep.h>
#include <linux/tick.h>
+#include <linux/irq.h>
#include <trace/events/power.h>
#include "smpboot.h"
@@ -392,13 +393,19 @@
smpboot_park_threads(cpu);
/*
+ * Prevent irq alloc/free while the dying cpu reorganizes the
+ * interrupt affinities.
+ */
+ irq_lock_sparse();
+
+ /*
* So now all preempt/rcu users must observe !cpu_active().
*/
-
err = __stop_machine(take_cpu_down, &tcd_param, cpumask_of(cpu));
if (err) {
/* CPU didn't die: tell everyone. Can't complain. */
cpu_notify_nofail(CPU_DOWN_FAILED | mod, hcpu);
+ irq_unlock_sparse();
goto out_release;
}
BUG_ON(cpu_online(cpu));
@@ -415,6 +422,9 @@
smp_mb(); /* Read from cpu_dead_idle before __cpu_die(). */
per_cpu(cpu_dead_idle, cpu) = false;
+ /* Interrupts are moved away from the dying cpu, reenable alloc/free */
+ irq_unlock_sparse();
+
hotplug_cpu__broadcast_tick_pull(cpu);
/* This actually kills the CPU. */
__cpu_die(cpu);
@@ -517,8 +527,18 @@
goto out_notify;
}
+ /*
+ * Some architectures have to walk the irq descriptors to
+ * setup the vector space for the cpu which comes online.
+ * Prevent irq alloc/free across the bringup.
+ */
+ irq_lock_sparse();
+
/* Arch-specific enabling code. */
ret = __cpu_up(cpu, idle);
+
+ irq_unlock_sparse();
+
if (ret != 0)
goto out_notify;
BUG_ON(!cpu_online(cpu));
diff --git a/kernel/events/core.c b/kernel/events/core.c
index d1f37dd..d3dae34 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4358,14 +4358,6 @@
rcu_read_unlock();
}
-static void rb_free_rcu(struct rcu_head *rcu_head)
-{
- struct ring_buffer *rb;
-
- rb = container_of(rcu_head, struct ring_buffer, rcu_head);
- rb_free(rb);
-}
-
struct ring_buffer *ring_buffer_get(struct perf_event *event)
{
struct ring_buffer *rb;
@@ -5794,7 +5786,7 @@
* need to add enough zero bytes after the string to handle
* the 64bit alignment we do later.
*/
- name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64));
+ name = file_path(file, buf, PATH_MAX - sizeof(u64));
if (IS_ERR(name)) {
name = "//toolong";
goto cpy_name;
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 2deb24c..2bbad9c 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -11,6 +11,7 @@
struct ring_buffer {
atomic_t refcount;
struct rcu_head rcu_head;
+ struct irq_work irq_work;
#ifdef CONFIG_PERF_USE_VMALLOC
struct work_struct work;
int page_order; /* allocation order */
@@ -55,6 +56,15 @@
};
extern void rb_free(struct ring_buffer *rb);
+
+static inline void rb_free_rcu(struct rcu_head *rcu_head)
+{
+ struct ring_buffer *rb;
+
+ rb = container_of(rcu_head, struct ring_buffer, rcu_head);
+ rb_free(rb);
+}
+
extern struct ring_buffer *
rb_alloc(int nr_pages, long watermark, int cpu, int flags);
extern void perf_event_wakeup(struct perf_event *event);
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 9647282..b2be01b 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -221,6 +221,8 @@
rcu_read_unlock();
}
+static void rb_irq_work(struct irq_work *work);
+
static void
ring_buffer_init(struct ring_buffer *rb, long watermark, int flags)
{
@@ -241,6 +243,16 @@
INIT_LIST_HEAD(&rb->event_list);
spin_lock_init(&rb->event_lock);
+ init_irq_work(&rb->irq_work, rb_irq_work);
+}
+
+static void ring_buffer_put_async(struct ring_buffer *rb)
+{
+ if (!atomic_dec_and_test(&rb->refcount))
+ return;
+
+ rb->rcu_head.next = (void *)rb;
+ irq_work_queue(&rb->irq_work);
}
/*
@@ -319,7 +331,7 @@
rb_free_aux(rb);
err:
- ring_buffer_put(rb);
+ ring_buffer_put_async(rb);
handle->event = NULL;
return NULL;
@@ -370,7 +382,7 @@
local_set(&rb->aux_nest, 0);
rb_free_aux(rb);
- ring_buffer_put(rb);
+ ring_buffer_put_async(rb);
}
/*
@@ -557,7 +569,18 @@
void rb_free_aux(struct ring_buffer *rb)
{
if (atomic_dec_and_test(&rb->aux_refcount))
+ irq_work_queue(&rb->irq_work);
+}
+
+static void rb_irq_work(struct irq_work *work)
+{
+ struct ring_buffer *rb = container_of(work, struct ring_buffer, irq_work);
+
+ if (!atomic_read(&rb->aux_refcount))
__rb_free_aux(rb);
+
+ if (rb->rcu_head.next == (void *)rb)
+ call_rcu(&rb->rcu_head, rb_free_rcu);
}
#ifndef CONFIG_PERF_USE_VMALLOC
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 4834ee8..61008b8 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -76,12 +76,8 @@
#ifdef CONFIG_SPARSE_IRQ
static inline void irq_mark_irq(unsigned int irq) { }
-extern void irq_lock_sparse(void);
-extern void irq_unlock_sparse(void);
#else
extern void irq_mark_irq(unsigned int irq);
-static inline void irq_lock_sparse(void) { }
-static inline void irq_unlock_sparse(void) { }
#endif
extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
diff --git a/kernel/module.c b/kernel/module.c
index 3e0e197..4d2b82e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3557,6 +3557,7 @@
mutex_lock(&module_mutex);
/* Unlink carefully: kallsyms could be walking list. */
list_del_rcu(&mod->list);
+ mod_tree_remove(mod);
wake_up_all(&module_wq);
/* Wait for RCU-sched synchronizing before releasing mod->list. */
synchronize_sched();
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b803e1b..78b4bad10 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2164,7 +2164,7 @@
set_task_cpu(p, cpu);
raw_spin_unlock_irqrestore(&p->pi_lock, flags);
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+#ifdef CONFIG_SCHED_INFO
if (likely(sched_info_on()))
memset(&p->sched_info, 0, sizeof(p->sched_info));
#endif
@@ -2320,13 +2320,27 @@
static struct static_key preempt_notifier_key = STATIC_KEY_INIT_FALSE;
+void preempt_notifier_inc(void)
+{
+ static_key_slow_inc(&preempt_notifier_key);
+}
+EXPORT_SYMBOL_GPL(preempt_notifier_inc);
+
+void preempt_notifier_dec(void)
+{
+ static_key_slow_dec(&preempt_notifier_key);
+}
+EXPORT_SYMBOL_GPL(preempt_notifier_dec);
+
/**
* preempt_notifier_register - tell me when current is being preempted & rescheduled
* @notifier: notifier struct to register
*/
void preempt_notifier_register(struct preempt_notifier *notifier)
{
- static_key_slow_inc(&preempt_notifier_key);
+ if (!static_key_false(&preempt_notifier_key))
+ WARN(1, "registering preempt_notifier while notifiers disabled\n");
+
hlist_add_head(¬ifier->link, ¤t->preempt_notifiers);
}
EXPORT_SYMBOL_GPL(preempt_notifier_register);
@@ -2340,7 +2354,6 @@
void preempt_notifier_unregister(struct preempt_notifier *notifier)
{
hlist_del(¬ifier->link);
- static_key_slow_dec(&preempt_notifier_key);
}
EXPORT_SYMBOL_GPL(preempt_notifier_unregister);
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 315c68e..4222ec5 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -142,7 +142,7 @@
0LL, 0L);
#endif
#ifdef CONFIG_NUMA_BALANCING
- SEQ_printf(m, " %d", task_node(p));
+ SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p));
#endif
#ifdef CONFIG_CGROUP_SCHED
SEQ_printf(m, " %s", task_group_path(task_group(p)));
@@ -517,11 +517,21 @@
SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
+#ifdef CONFIG_NUMA_BALANCING
+void print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
+ unsigned long tpf, unsigned long gsf, unsigned long gpf)
+{
+ SEQ_printf(m, "numa_faults node=%d ", node);
+ SEQ_printf(m, "task_private=%lu task_shared=%lu ", tsf, tpf);
+ SEQ_printf(m, "group_private=%lu group_shared=%lu\n", gsf, gpf);
+}
+#endif
+
+
static void sched_show_numa(struct task_struct *p, struct seq_file *m)
{
#ifdef CONFIG_NUMA_BALANCING
struct mempolicy *pol;
- int node, i;
if (p->mm)
P(mm->numa_scan_seq);
@@ -533,26 +543,12 @@
mpol_get(pol);
task_unlock(p);
- SEQ_printf(m, "numa_migrations, %ld\n", xchg(&p->numa_pages_migrated, 0));
-
- for_each_online_node(node) {
- for (i = 0; i < 2; i++) {
- unsigned long nr_faults = -1;
- int cpu_current, home_node;
-
- if (p->numa_faults)
- nr_faults = p->numa_faults[2*node + i];
-
- cpu_current = !i ? (task_node(p) == node) :
- (pol && node_isset(node, pol->v.nodes));
-
- home_node = (p->numa_preferred_nid == node);
-
- SEQ_printf(m, "numa_faults_memory, %d, %d, %d, %d, %ld\n",
- i, node, cpu_current, home_node, nr_faults);
- }
- }
-
+ P(numa_pages_migrated);
+ P(numa_preferred_nid);
+ P(total_numa_faults);
+ SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
+ task_node(p), task_numa_group_id(p));
+ show_numa_stats(p, m);
mpol_put(pol);
#endif
}
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3d57cc0..65c8f3e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8473,7 +8473,27 @@
print_cfs_rq(m, cpu, cfs_rq);
rcu_read_unlock();
}
-#endif
+
+#ifdef CONFIG_NUMA_BALANCING
+void show_numa_stats(struct task_struct *p, struct seq_file *m)
+{
+ int node;
+ unsigned long tsf = 0, tpf = 0, gsf = 0, gpf = 0;
+
+ for_each_online_node(node) {
+ if (p->numa_faults) {
+ tsf = p->numa_faults[task_faults_idx(NUMA_MEM, node, 0)];
+ tpf = p->numa_faults[task_faults_idx(NUMA_MEM, node, 1)];
+ }
+ if (p->numa_group) {
+ gsf = p->numa_group->faults[task_faults_idx(NUMA_MEM, node, 0)],
+ gpf = p->numa_group->faults[task_faults_idx(NUMA_MEM, node, 1)];
+ }
+ print_numa_stats(m, node, tsf, tpf, gsf, gpf);
+ }
+}
+#endif /* CONFIG_NUMA_BALANCING */
+#endif /* CONFIG_SCHED_DEBUG */
__init void init_sched_fair_class(void)
{
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 8858891..84d4879 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1689,9 +1689,22 @@
extern struct sched_entity *__pick_first_entity(struct cfs_rq *cfs_rq);
extern struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq);
+
+#ifdef CONFIG_SCHED_DEBUG
extern void print_cfs_stats(struct seq_file *m, int cpu);
extern void print_rt_stats(struct seq_file *m, int cpu);
extern void print_dl_stats(struct seq_file *m, int cpu);
+extern void
+print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
+
+#ifdef CONFIG_NUMA_BALANCING
+extern void
+show_numa_stats(struct task_struct *p, struct seq_file *m);
+extern void
+print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
+ unsigned long tpf, unsigned long gsf, unsigned long gpf);
+#endif /* CONFIG_NUMA_BALANCING */
+#endif /* CONFIG_SCHED_DEBUG */
extern void init_cfs_rq(struct cfs_rq *cfs_rq);
extern void init_rt_rq(struct rt_rq *rt_rq);
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index 077ebbd..b0fbc76 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -47,7 +47,7 @@
# define schedstat_set(var, val) do { } while (0)
#endif
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+#ifdef CONFIG_SCHED_INFO
static inline void sched_info_reset_dequeued(struct task_struct *t)
{
t->sched_info.last_queued = 0;
@@ -156,7 +156,7 @@
#define sched_info_depart(rq, t) do { } while (0)
#define sched_info_arrive(rq, next) do { } while (0)
#define sched_info_switch(rq, t, next) do { } while (0)
-#endif /* CONFIG_SCHEDSTATS || CONFIG_TASK_DELAY_ACCT */
+#endif /* CONFIG_SCHED_INFO */
/*
* The following are functions that support scheduler-internal time accounting.
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 812fcc3..19b62b5 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1538,12 +1538,6 @@
{ }
};
-#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
-static struct ctl_table binfmt_misc_table[] = {
- { }
-};
-#endif
-
static struct ctl_table fs_table[] = {
{
.procname = "inode-nr",
@@ -1697,7 +1691,7 @@
{
.procname = "binfmt_misc",
.mode = 0555,
- .child = binfmt_misc_table,
+ .child = sysctl_mount_point,
},
#endif
{
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 08ccc3d..50eb107 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -120,19 +120,25 @@
/* The clockevent device is getting replaced. Shut it down. */
case CLOCK_EVT_STATE_SHUTDOWN:
- return dev->set_state_shutdown(dev);
+ if (dev->set_state_shutdown)
+ return dev->set_state_shutdown(dev);
+ return 0;
case CLOCK_EVT_STATE_PERIODIC:
/* Core internal bug */
if (!(dev->features & CLOCK_EVT_FEAT_PERIODIC))
return -ENOSYS;
- return dev->set_state_periodic(dev);
+ if (dev->set_state_periodic)
+ return dev->set_state_periodic(dev);
+ return 0;
case CLOCK_EVT_STATE_ONESHOT:
/* Core internal bug */
if (!(dev->features & CLOCK_EVT_FEAT_ONESHOT))
return -ENOSYS;
- return dev->set_state_oneshot(dev);
+ if (dev->set_state_oneshot)
+ return dev->set_state_oneshot(dev);
+ return 0;
case CLOCK_EVT_STATE_ONESHOT_STOPPED:
/* Core internal bug */
@@ -471,18 +477,6 @@
if (dev->features & CLOCK_EVT_FEAT_DUMMY)
return 0;
- /* New state-specific callbacks */
- if (!dev->set_state_shutdown)
- return -EINVAL;
-
- if ((dev->features & CLOCK_EVT_FEAT_PERIODIC) &&
- !dev->set_state_periodic)
- return -EINVAL;
-
- if ((dev->features & CLOCK_EVT_FEAT_ONESHOT) &&
- !dev->set_state_oneshot)
- return -EINVAL;
-
return 0;
}
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index d39f32c..52b9e19 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -159,7 +159,7 @@
{
struct clock_event_device *bc = tick_broadcast_device.evtdev;
unsigned long flags;
- int ret;
+ int ret = 0;
raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
@@ -221,13 +221,14 @@
* If we kept the cpu in the broadcast mask,
* tell the caller to leave the per cpu device
* in shutdown state. The periodic interrupt
- * is delivered by the broadcast device.
+ * is delivered by the broadcast device, if
+ * the broadcast device exists and is not
+ * hrtimer based.
*/
- ret = cpumask_test_cpu(cpu, tick_broadcast_mask);
+ if (bc && !(bc->features & CLOCK_EVT_FEAT_HRTIMER))
+ ret = cpumask_test_cpu(cpu, tick_broadcast_mask);
break;
default:
- /* Nothing to do */
- ret = 0;
break;
}
}
@@ -265,8 +266,22 @@
* Check, if the current cpu is in the mask
*/
if (cpumask_test_cpu(cpu, mask)) {
+ struct clock_event_device *bc = tick_broadcast_device.evtdev;
+
cpumask_clear_cpu(cpu, mask);
- local = true;
+ /*
+ * We only run the local handler, if the broadcast
+ * device is not hrtimer based. Otherwise we run into
+ * a hrtimer recursion.
+ *
+ * local timer_interrupt()
+ * local_handler()
+ * expire_hrtimers()
+ * bc_handler()
+ * local_handler()
+ * expire_hrtimers()
+ */
+ local = !(bc->features & CLOCK_EVT_FEAT_HRTIMER);
}
if (!cpumask_empty(mask)) {
@@ -301,6 +316,13 @@
bool bc_local;
raw_spin_lock(&tick_broadcast_lock);
+
+ /* Handle spurious interrupts gracefully */
+ if (clockevent_state_shutdown(tick_broadcast_device.evtdev)) {
+ raw_spin_unlock(&tick_broadcast_lock);
+ return;
+ }
+
bc_local = tick_do_periodic_broadcast();
if (clockevent_state_oneshot(dev)) {
@@ -359,8 +381,16 @@
case TICK_BROADCAST_ON:
cpumask_set_cpu(cpu, tick_broadcast_on);
if (!cpumask_test_and_set_cpu(cpu, tick_broadcast_mask)) {
- if (tick_broadcast_device.mode ==
- TICKDEV_MODE_PERIODIC)
+ /*
+ * Only shutdown the cpu local device, if:
+ *
+ * - the broadcast device exists
+ * - the broadcast device is not a hrtimer based one
+ * - the broadcast device is in periodic mode to
+ * avoid a hickup during switch to oneshot mode
+ */
+ if (bc && !(bc->features & CLOCK_EVT_FEAT_HRTIMER) &&
+ tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
clockevents_shutdown(dev);
}
break;
@@ -379,14 +409,16 @@
break;
}
- if (cpumask_empty(tick_broadcast_mask)) {
- if (!bc_stopped)
- clockevents_shutdown(bc);
- } else if (bc_stopped) {
- if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
- tick_broadcast_start_periodic(bc);
- else
- tick_broadcast_setup_oneshot(bc);
+ if (bc) {
+ if (cpumask_empty(tick_broadcast_mask)) {
+ if (!bc_stopped)
+ clockevents_shutdown(bc);
+ } else if (bc_stopped) {
+ if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
+ tick_broadcast_start_periodic(bc);
+ else
+ tick_broadcast_setup_oneshot(bc);
+ }
}
raw_spin_unlock(&tick_broadcast_lock);
}
@@ -662,71 +694,82 @@
clockevents_switch_state(dev, CLOCK_EVT_STATE_SHUTDOWN);
}
-/**
- * tick_broadcast_oneshot_control - Enter/exit broadcast oneshot mode
- * @state: The target state (enter/exit)
- *
- * The system enters/leaves a state, where affected devices might stop
- * Returns 0 on success, -EBUSY if the cpu is used to broadcast wakeups.
- *
- * Called with interrupts disabled, so clockevents_lock is not
- * required here because the local clock event device cannot go away
- * under us.
- */
-int tick_broadcast_oneshot_control(enum tick_broadcast_state state)
+int __tick_broadcast_oneshot_control(enum tick_broadcast_state state)
{
struct clock_event_device *bc, *dev;
- struct tick_device *td;
int cpu, ret = 0;
ktime_t now;
/*
- * Periodic mode does not care about the enter/exit of power
- * states
+ * If there is no broadcast device, tell the caller not to go
+ * into deep idle.
*/
- if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
- return 0;
+ if (!tick_broadcast_device.evtdev)
+ return -EBUSY;
- /*
- * We are called with preemtion disabled from the depth of the
- * idle code, so we can't be moved away.
- */
- td = this_cpu_ptr(&tick_cpu_device);
- dev = td->evtdev;
-
- if (!(dev->features & CLOCK_EVT_FEAT_C3STOP))
- return 0;
+ dev = this_cpu_ptr(&tick_cpu_device)->evtdev;
raw_spin_lock(&tick_broadcast_lock);
bc = tick_broadcast_device.evtdev;
cpu = smp_processor_id();
if (state == TICK_BROADCAST_ENTER) {
+ /*
+ * If the current CPU owns the hrtimer broadcast
+ * mechanism, it cannot go deep idle and we do not add
+ * the CPU to the broadcast mask. We don't have to go
+ * through the EXIT path as the local timer is not
+ * shutdown.
+ */
+ ret = broadcast_needs_cpu(bc, cpu);
+ if (ret)
+ goto out;
+
+ /*
+ * If the broadcast device is in periodic mode, we
+ * return.
+ */
+ if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC) {
+ /* If it is a hrtimer based broadcast, return busy */
+ if (bc->features & CLOCK_EVT_FEAT_HRTIMER)
+ ret = -EBUSY;
+ goto out;
+ }
+
if (!cpumask_test_and_set_cpu(cpu, tick_broadcast_oneshot_mask)) {
WARN_ON_ONCE(cpumask_test_cpu(cpu, tick_broadcast_pending_mask));
+
+ /* Conditionally shut down the local timer. */
broadcast_shutdown_local(bc, dev);
+
/*
* We only reprogram the broadcast timer if we
* did not mark ourself in the force mask and
* if the cpu local event is earlier than the
* broadcast event. If the current CPU is in
* the force mask, then we are going to be
- * woken by the IPI right away.
+ * woken by the IPI right away; we return
+ * busy, so the CPU does not try to go deep
+ * idle.
*/
- if (!cpumask_test_cpu(cpu, tick_broadcast_force_mask) &&
- dev->next_event.tv64 < bc->next_event.tv64)
+ if (cpumask_test_cpu(cpu, tick_broadcast_force_mask)) {
+ ret = -EBUSY;
+ } else if (dev->next_event.tv64 < bc->next_event.tv64) {
tick_broadcast_set_event(bc, cpu, dev->next_event);
+ /*
+ * In case of hrtimer broadcasts the
+ * programming might have moved the
+ * timer to this cpu. If yes, remove
+ * us from the broadcast mask and
+ * return busy.
+ */
+ ret = broadcast_needs_cpu(bc, cpu);
+ if (ret) {
+ cpumask_clear_cpu(cpu,
+ tick_broadcast_oneshot_mask);
+ }
+ }
}
- /*
- * If the current CPU owns the hrtimer broadcast
- * mechanism, it cannot go deep idle and we remove the
- * CPU from the broadcast mask. We don't have to go
- * through the EXIT path as the local timer is not
- * shutdown.
- */
- ret = broadcast_needs_cpu(bc, cpu);
- if (ret)
- cpumask_clear_cpu(cpu, tick_broadcast_oneshot_mask);
} else {
if (cpumask_test_and_clear_cpu(cpu, tick_broadcast_oneshot_mask)) {
clockevents_switch_state(dev, CLOCK_EVT_STATE_ONESHOT);
@@ -938,6 +981,16 @@
return bc ? bc->features & CLOCK_EVT_FEAT_ONESHOT : false;
}
+#else
+int __tick_broadcast_oneshot_control(enum tick_broadcast_state state)
+{
+ struct clock_event_device *bc = tick_broadcast_device.evtdev;
+
+ if (!bc || (bc->features & CLOCK_EVT_FEAT_HRTIMER))
+ return -EBUSY;
+
+ return 0;
+}
#endif
void __init tick_broadcast_init(void)
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 76446cb..55e13ef 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -343,6 +343,27 @@
tick_install_broadcast_device(newdev);
}
+/**
+ * tick_broadcast_oneshot_control - Enter/exit broadcast oneshot mode
+ * @state: The target state (enter/exit)
+ *
+ * The system enters/leaves a state, where affected devices might stop
+ * Returns 0 on success, -EBUSY if the cpu is used to broadcast wakeups.
+ *
+ * Called with interrupts disabled, so clockevents_lock is not
+ * required here because the local clock event device cannot go away
+ * under us.
+ */
+int tick_broadcast_oneshot_control(enum tick_broadcast_state state)
+{
+ struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
+
+ if (!(td->evtdev->features & CLOCK_EVT_FEAT_C3STOP))
+ return 0;
+
+ return __tick_broadcast_oneshot_control(state);
+}
+
#ifdef CONFIG_HOTPLUG_CPU
/*
* Transfer the do_timer job away from a dying cpu.
diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h
index 42fdf49..a4a8d4e 100644
--- a/kernel/time/tick-sched.h
+++ b/kernel/time/tick-sched.h
@@ -71,4 +71,14 @@
static inline void tick_cancel_sched_timer(int cpu) { }
#endif
+#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+extern int __tick_broadcast_oneshot_control(enum tick_broadcast_state state);
+#else
+static inline int
+__tick_broadcast_oneshot_control(enum tick_broadcast_state state)
+{
+ return -EBUSY;
+}
+#endif
+
#endif
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b908048..e2894b2 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -841,9 +841,14 @@
that can help debug the scheduler. The runtime overhead of this
option is minimal.
+config SCHED_INFO
+ bool
+ default n
+
config SCHEDSTATS
bool "Collect scheduler statistics"
depends on DEBUG_KERNEL && PROC_FS
+ select SCHED_INFO
help
If you say Y here, additional code will be inserted into the
scheduler and related routines to collect statistics about
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 777eda7..39f24d6 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -18,10 +18,6 @@
For better error detection enable CONFIG_STACKTRACE,
and add slub_debug=U to boot cmdline.
-config KASAN_SHADOW_OFFSET
- hex
- default 0xdffffc0000000000 if X86_64
-
choice
prompt "Instrumentation type"
depends on KASAN
diff --git a/lib/Makefile b/lib/Makefile
index ff37c8c..6897b52 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -45,6 +45,9 @@
CFLAGS_kobject_uevent.o += -DDEBUG
endif
+obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
+CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
+
obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
diff --git a/lib/crc-t10dif.c b/lib/crc-t10dif.c
index dfe6ec1..1ad33e5 100644
--- a/lib/crc-t10dif.c
+++ b/lib/crc-t10dif.c
@@ -19,7 +19,7 @@
static struct crypto_shash *crct10dif_tfm;
static struct static_key crct10dif_fallback __read_mostly;
-__u16 crc_t10dif(const unsigned char *buffer, size_t len)
+__u16 crc_t10dif_update(__u16 crc, const unsigned char *buffer, size_t len)
{
struct {
struct shash_desc shash;
@@ -28,17 +28,23 @@
int err;
if (static_key_false(&crct10dif_fallback))
- return crc_t10dif_generic(0, buffer, len);
+ return crc_t10dif_generic(crc, buffer, len);
desc.shash.tfm = crct10dif_tfm;
desc.shash.flags = 0;
- *(__u16 *)desc.ctx = 0;
+ *(__u16 *)desc.ctx = crc;
err = crypto_shash_update(&desc.shash, buffer, len);
BUG_ON(err);
return *(__u16 *)desc.ctx;
}
+EXPORT_SYMBOL(crc_t10dif_update);
+
+__u16 crc_t10dif(const unsigned char *buffer, size_t len)
+{
+ return crc_t10dif_update(0, buffer, len);
+}
EXPORT_SYMBOL(crc_t10dif);
static int __init crc_t10dif_mod_init(void)
diff --git a/lib/debug_info.c b/lib/debug_info.c
new file mode 100644
index 0000000..2edbe27
--- /dev/null
+++ b/lib/debug_info.c
@@ -0,0 +1,27 @@
+/*
+ * This file exists solely to ensure debug information for some core
+ * data structures is included in the final image even for
+ * CONFIG_DEBUG_INFO_REDUCED. Please do not add actual code. However,
+ * adding appropriate #includes is fine.
+ */
+#include <stdarg.h>
+
+#include <linux/cred.h>
+#include <linux/crypto.h>
+#include <linux/dcache.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/fscache-cache.h>
+#include <linux/io.h>
+#include <linux/kallsyms.h>
+#include <linux/kernel.h>
+#include <linux/kobject.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <net/addrconf.h>
+#include <net/sock.h>
+#include <net/tcp.h>
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 7756da3..dac5bf5 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -287,7 +287,7 @@
#define INIT_BW (100 << (20 - PAGE_SHIFT))
static int wb_init(struct bdi_writeback *wb, struct backing_dev_info *bdi,
- gfp_t gfp)
+ int blkcg_id, gfp_t gfp)
{
int i, err;
@@ -311,21 +311,29 @@
INIT_LIST_HEAD(&wb->work_list);
INIT_DELAYED_WORK(&wb->dwork, wb_workfn);
+ wb->congested = wb_congested_get_create(bdi, blkcg_id, gfp);
+ if (!wb->congested)
+ return -ENOMEM;
+
err = fprop_local_init_percpu(&wb->completions, gfp);
if (err)
- return err;
+ goto out_put_cong;
for (i = 0; i < NR_WB_STAT_ITEMS; i++) {
err = percpu_counter_init(&wb->stat[i], 0, gfp);
- if (err) {
- while (--i)
- percpu_counter_destroy(&wb->stat[i]);
- fprop_local_destroy_percpu(&wb->completions);
- return err;
- }
+ if (err)
+ goto out_destroy_stat;
}
return 0;
+
+out_destroy_stat:
+ while (--i)
+ percpu_counter_destroy(&wb->stat[i]);
+ fprop_local_destroy_percpu(&wb->completions);
+out_put_cong:
+ wb_congested_put(wb->congested);
+ return err;
}
/*
@@ -361,6 +369,7 @@
percpu_counter_destroy(&wb->stat[i]);
fprop_local_destroy_percpu(&wb->completions);
+ wb_congested_put(wb->congested);
}
#ifdef CONFIG_CGROUP_WRITEBACK
@@ -392,9 +401,6 @@
struct bdi_writeback_congested *new_congested = NULL, *congested;
struct rb_node **node, *parent;
unsigned long flags;
-
- if (blkcg_id == 1)
- return &bdi->wb_congested;
retry:
spin_lock_irqsave(&cgwb_lock, flags);
@@ -419,7 +425,6 @@
new_congested = NULL;
rb_link_node(&congested->rb_node, parent, node);
rb_insert_color(&congested->rb_node, &bdi->cgwb_congested_tree);
- atomic_inc(&bdi->usage_cnt);
goto found;
}
@@ -450,24 +455,23 @@
*/
void wb_congested_put(struct bdi_writeback_congested *congested)
{
- struct backing_dev_info *bdi = congested->bdi;
unsigned long flags;
- if (congested->blkcg_id == 1)
- return;
-
local_irq_save(flags);
if (!atomic_dec_and_lock(&congested->refcnt, &cgwb_lock)) {
local_irq_restore(flags);
return;
}
- rb_erase(&congested->rb_node, &congested->bdi->cgwb_congested_tree);
+ /* bdi might already have been destroyed leaving @congested unlinked */
+ if (congested->bdi) {
+ rb_erase(&congested->rb_node,
+ &congested->bdi->cgwb_congested_tree);
+ congested->bdi = NULL;
+ }
+
spin_unlock_irqrestore(&cgwb_lock, flags);
kfree(congested);
-
- if (atomic_dec_and_test(&bdi->usage_cnt))
- wake_up_all(&cgwb_release_wait);
}
static void cgwb_release_workfn(struct work_struct *work)
@@ -480,7 +484,6 @@
css_put(wb->memcg_css);
css_put(wb->blkcg_css);
- wb_congested_put(wb->congested);
fprop_local_destroy_percpu(&wb->memcg_completions);
percpu_ref_exit(&wb->refcnt);
@@ -541,7 +544,7 @@
if (!wb)
return -ENOMEM;
- ret = wb_init(wb, bdi, gfp);
+ ret = wb_init(wb, bdi, blkcg_css->id, gfp);
if (ret)
goto err_free;
@@ -553,12 +556,6 @@
if (ret)
goto err_ref_exit;
- wb->congested = wb_congested_get_create(bdi, blkcg_css->id, gfp);
- if (!wb->congested) {
- ret = -ENOMEM;
- goto err_fprop_exit;
- }
-
wb->memcg_css = memcg_css;
wb->blkcg_css = blkcg_css;
INIT_WORK(&wb->release_work, cgwb_release_workfn);
@@ -588,12 +585,10 @@
if (ret) {
if (ret == -EEXIST)
ret = 0;
- goto err_put_congested;
+ goto err_fprop_exit;
}
goto out_put;
-err_put_congested:
- wb_congested_put(wb->congested);
err_fprop_exit:
fprop_local_destroy_percpu(&wb->memcg_completions);
err_ref_exit:
@@ -662,26 +657,41 @@
return wb;
}
-static void cgwb_bdi_init(struct backing_dev_info *bdi)
+static int cgwb_bdi_init(struct backing_dev_info *bdi)
{
- bdi->wb.memcg_css = mem_cgroup_root_css;
- bdi->wb.blkcg_css = blkcg_root_css;
- bdi->wb_congested.blkcg_id = 1;
+ int ret;
+
INIT_RADIX_TREE(&bdi->cgwb_tree, GFP_ATOMIC);
bdi->cgwb_congested_tree = RB_ROOT;
atomic_set(&bdi->usage_cnt, 1);
+
+ ret = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL);
+ if (!ret) {
+ bdi->wb.memcg_css = mem_cgroup_root_css;
+ bdi->wb.blkcg_css = blkcg_root_css;
+ }
+ return ret;
}
static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
{
struct radix_tree_iter iter;
+ struct bdi_writeback_congested *congested, *congested_n;
void **slot;
WARN_ON(test_bit(WB_registered, &bdi->wb.state));
spin_lock_irq(&cgwb_lock);
+
radix_tree_for_each_slot(slot, &bdi->cgwb_tree, &iter, 0)
cgwb_kill(*slot);
+
+ rbtree_postorder_for_each_entry_safe(congested, congested_n,
+ &bdi->cgwb_congested_tree, rb_node) {
+ rb_erase(&congested->rb_node, &bdi->cgwb_congested_tree);
+ congested->bdi = NULL; /* mark @congested unlinked */
+ }
+
spin_unlock_irq(&cgwb_lock);
/*
@@ -732,15 +742,28 @@
#else /* CONFIG_CGROUP_WRITEBACK */
-static void cgwb_bdi_init(struct backing_dev_info *bdi) { }
+static int cgwb_bdi_init(struct backing_dev_info *bdi)
+{
+ int err;
+
+ bdi->wb_congested = kzalloc(sizeof(*bdi->wb_congested), GFP_KERNEL);
+ if (!bdi->wb_congested)
+ return -ENOMEM;
+
+ err = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL);
+ if (err) {
+ kfree(bdi->wb_congested);
+ return err;
+ }
+ return 0;
+}
+
static void cgwb_bdi_destroy(struct backing_dev_info *bdi) { }
#endif /* CONFIG_CGROUP_WRITEBACK */
int bdi_init(struct backing_dev_info *bdi)
{
- int err;
-
bdi->dev = NULL;
bdi->min_ratio = 0;
@@ -749,15 +772,7 @@
INIT_LIST_HEAD(&bdi->bdi_list);
init_waitqueue_head(&bdi->wb_waitq);
- err = wb_init(&bdi->wb, bdi, GFP_KERNEL);
- if (err)
- return err;
-
- bdi->wb_congested.state = 0;
- bdi->wb.congested = &bdi->wb_congested;
-
- cgwb_bdi_init(bdi);
- return 0;
+ return cgwb_bdi_init(bdi);
}
EXPORT_SYMBOL(bdi_init);
diff --git a/mm/filemap.c b/mm/filemap.c
index 11f10ef..1283fc8 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2563,7 +2563,7 @@
/* We can write back this queue in page reclaim */
current->backing_dev_info = inode_to_bdi(inode);
- err = file_remove_suid(file);
+ err = file_remove_privs(file);
if (err)
goto out;
diff --git a/mm/memory.c b/mm/memory.c
index 11b9ca1..388dcf9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2670,6 +2670,10 @@
pte_unmap(page_table);
+ /* File mapping without ->vm_ops ? */
+ if (vma->vm_flags & VM_SHARED)
+ return VM_FAULT_SIGBUS;
+
/* Check if we need to add a guard page to the stack */
if (check_stack_guard_page(vma, address) < 0)
return VM_FAULT_SIGSEGV;
@@ -3099,6 +3103,9 @@
- vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
pte_unmap(page_table);
+ /* The VMA was not fully populated on mmap() or missing VM_DONTEXPAND */
+ if (!vma->vm_ops->fault)
+ return VM_FAULT_SIGBUS;
if (!(flags & FAULT_FLAG_WRITE))
return do_read_fault(mm, vma, address, pmd, pgoff, flags,
orig_pte);
@@ -3244,13 +3251,12 @@
barrier();
if (!pte_present(entry)) {
if (pte_none(entry)) {
- if (vma->vm_ops) {
- if (likely(vma->vm_ops->fault))
- return do_fault(mm, vma, address, pte,
- pmd, flags, entry);
- }
- return do_anonymous_page(mm, vma, address,
- pte, pmd, flags);
+ if (vma->vm_ops)
+ return do_fault(mm, vma, address, pte, pmd,
+ flags, entry);
+
+ return do_anonymous_page(mm, vma, address, pte, pmd,
+ flags);
}
return do_swap_page(mm, vma, address,
pte, pmd, flags, entry);
@@ -3726,7 +3732,7 @@
if (buf) {
char *p;
- p = d_path(&f->f_path, buf, PAGE_SIZE);
+ p = file_path(f, buf, PAGE_SIZE);
if (IS_ERR(p))
p = "?";
printk("%s%s[%lx+%lx]", prefix, kbasename(p),
diff --git a/mm/swapfile.c b/mm/swapfile.c
index a7e7210..41e4581 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2032,7 +2032,7 @@
}
file = si->swap_file;
- len = seq_path(swap, &file->f_path, " \t\n\\");
+ len = seq_file_path(swap, file, " \t\n\\");
seq_printf(swap, "%*s%s\t%u\t%u\t%d\n",
len < 40 ? 40 - len : 1, " ",
S_ISBLK(file_inode(file)->i_mode) ?
diff --git a/net/9p/client.c b/net/9p/client.c
index 6f4c4c8..498454b 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -843,7 +843,8 @@
if (err < 0) {
if (err == -EIO)
c->status = Disconnected;
- goto reterr;
+ if (err != -ERESTARTSYS)
+ goto reterr;
}
if (req->status == REQ_STATUS_ERROR) {
p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
@@ -1582,6 +1583,10 @@
p9_free_req(clnt, req);
break;
}
+ if (rsize < count) {
+ pr_err("bogus RREAD count (%d > %d)\n", count, rsize);
+ count = rsize;
+ }
p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count);
if (!count) {
@@ -1647,6 +1652,11 @@
if (*err) {
trace_9p_protocol_dump(clnt, req->rc);
p9_free_req(clnt, req);
+ break;
+ }
+ if (rsize < count) {
+ pr_err("bogus RWRITE count (%d > %d)\n", count, rsize);
+ count = rsize;
}
p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
index 1997538..3b78e84 100644
--- a/net/ax25/ax25_subr.c
+++ b/net/ax25/ax25_subr.c
@@ -264,6 +264,7 @@
{
ax25_clear_queues(ax25);
+ ax25_stop_heartbeat(ax25);
ax25_stop_t1timer(ax25);
ax25_stop_t2timer(ax25);
ax25_stop_t3timer(ax25);
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index c11cf26..1198a3d 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -351,7 +351,6 @@
if (state == MDB_TEMPORARY)
mod_timer(&p->timer, now + br->multicast_membership_interval);
- br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
return 0;
}
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 742a6c2..79db489 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -39,6 +39,16 @@
struct bridge_mcast_own_query *query);
static void br_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port);
+static void br_ip4_multicast_leave_group(struct net_bridge *br,
+ struct net_bridge_port *port,
+ __be32 group,
+ __u16 vid);
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_leave_group(struct net_bridge *br,
+ struct net_bridge_port *port,
+ const struct in6_addr *group,
+ __u16 vid);
+#endif
unsigned int br_mdb_rehash_seq;
static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
@@ -1010,9 +1020,15 @@
continue;
}
- err = br_ip4_multicast_add_group(br, port, group, vid);
- if (err)
- break;
+ if ((type == IGMPV3_CHANGE_TO_INCLUDE ||
+ type == IGMPV3_MODE_IS_INCLUDE) &&
+ ntohs(grec->grec_nsrcs) == 0) {
+ br_ip4_multicast_leave_group(br, port, group, vid);
+ } else {
+ err = br_ip4_multicast_add_group(br, port, group, vid);
+ if (err)
+ break;
+ }
}
return err;
@@ -1071,10 +1087,17 @@
continue;
}
- err = br_ip6_multicast_add_group(br, port, &grec->grec_mca,
- vid);
- if (err)
- break;
+ if ((grec->grec_type == MLD2_CHANGE_TO_INCLUDE ||
+ grec->grec_type == MLD2_MODE_IS_INCLUDE) &&
+ ntohs(*nsrcs) == 0) {
+ br_ip6_multicast_leave_group(br, port, &grec->grec_mca,
+ vid);
+ } else {
+ err = br_ip6_multicast_add_group(br, port,
+ &grec->grec_mca, vid);
+ if (!err)
+ break;
+ }
}
return err;
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 3cc71b9..cc85891 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -121,12 +121,13 @@
* Copied from sock.c:sock_queue_rcv_skb(), but changed so packets are
* not dropped, but CAIF is sending flow off instead.
*/
-static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+static void caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
{
int err;
unsigned long flags;
struct sk_buff_head *list = &sk->sk_receive_queue;
struct caifsock *cf_sk = container_of(sk, struct caifsock, sk);
+ bool queued = false;
if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
(unsigned int)sk->sk_rcvbuf && rx_flow_is_on(cf_sk)) {
@@ -139,7 +140,8 @@
err = sk_filter(sk, skb);
if (err)
- return err;
+ goto out;
+
if (!sk_rmem_schedule(sk, skb, skb->truesize) && rx_flow_is_on(cf_sk)) {
set_rx_flow_off(cf_sk);
net_dbg_ratelimited("sending flow OFF due to rmem_schedule\n");
@@ -147,21 +149,16 @@
}
skb->dev = NULL;
skb_set_owner_r(skb, sk);
- /* Cache the SKB length before we tack it onto the receive
- * queue. Once it is added it no longer belongs to us and
- * may be freed by other threads of control pulling packets
- * from the queue.
- */
spin_lock_irqsave(&list->lock, flags);
- if (!sock_flag(sk, SOCK_DEAD))
+ queued = !sock_flag(sk, SOCK_DEAD);
+ if (queued)
__skb_queue_tail(list, skb);
spin_unlock_irqrestore(&list->lock, flags);
-
- if (!sock_flag(sk, SOCK_DEAD))
+out:
+ if (queued)
sk->sk_data_ready(sk);
else
kfree_skb(skb);
- return 0;
}
/* Packet Receive Callback function called from CAIF Stack */
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 7933e62..166d436 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -89,6 +89,8 @@
struct s_stats can_stats; /* packet statistics */
struct s_pstats can_pstats; /* receive list statistics */
+static atomic_t skbcounter = ATOMIC_INIT(0);
+
/*
* af_can socket functions
*/
@@ -310,12 +312,8 @@
return err;
}
- if (newskb) {
- if (!(newskb->tstamp.tv64))
- __net_timestamp(newskb);
-
+ if (newskb)
netif_rx_ni(newskb);
- }
/* update statistics */
can_stats.tx_frames++;
@@ -683,6 +681,10 @@
can_stats.rx_frames++;
can_stats.rx_frames_delta++;
+ /* create non-zero unique skb identifier together with *skb */
+ while (!(can_skb_prv(skb)->skbcnt))
+ can_skb_prv(skb)->skbcnt = atomic_inc_return(&skbcounter);
+
rcu_read_lock();
/* deliver the packet to sockets listening on all devices */
diff --git a/net/can/bcm.c b/net/can/bcm.c
index b523453..a1ba687 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -261,6 +261,7 @@
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
memcpy(skb_put(skb, CFSIZ), cf, CFSIZ);
@@ -1217,6 +1218,7 @@
}
can_skb_prv(skb)->ifindex = dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
skb->dev = dev;
can_skb_set_owner(skb, sk);
err = can_send(skb, 1); /* send with loopback */
diff --git a/net/can/raw.c b/net/can/raw.c
index 31b9748..2e67b14 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -75,7 +75,7 @@
*/
struct uniqframe {
- ktime_t tstamp;
+ int skbcnt;
const struct sk_buff *skb;
unsigned int join_rx_count;
};
@@ -133,7 +133,7 @@
/* eliminate multiple filter matches for the same skb */
if (this_cpu_ptr(ro->uniq)->skb == oskb &&
- ktime_equal(this_cpu_ptr(ro->uniq)->tstamp, oskb->tstamp)) {
+ this_cpu_ptr(ro->uniq)->skbcnt == can_skb_prv(oskb)->skbcnt) {
if (ro->join_filters) {
this_cpu_inc(ro->uniq->join_rx_count);
/* drop frame until all enabled filters matched */
@@ -144,7 +144,7 @@
}
} else {
this_cpu_ptr(ro->uniq)->skb = oskb;
- this_cpu_ptr(ro->uniq)->tstamp = oskb->tstamp;
+ this_cpu_ptr(ro->uniq)->skbcnt = can_skb_prv(oskb)->skbcnt;
this_cpu_ptr(ro->uniq)->join_rx_count = 1;
/* drop first frame to check all enabled filters? */
if (ro->join_filters && ro->count > 1)
@@ -749,6 +749,7 @@
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = dev->ifindex;
+ can_skb_prv(skb)->skbcnt = 0;
err = memcpy_from_msg(skb_put(skb, size), msg, size);
if (err < 0)
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 79e8f71..f30329f 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -9,6 +9,7 @@
#include <keys/ceph-type.h>
#include <linux/module.h>
#include <linux/mount.h>
+#include <linux/nsproxy.h>
#include <linux/parser.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
@@ -16,8 +17,6 @@
#include <linux/statfs.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
-#include <linux/nsproxy.h>
-#include <net/net_namespace.h>
#include <linux/ceph/ceph_features.h>
@@ -131,6 +130,13 @@
int i;
int ret;
+ /*
+ * Don't bother comparing options if network namespaces don't
+ * match.
+ */
+ if (!net_eq(current->nsproxy->net_ns, read_pnet(&client->msgr.net)))
+ return -1;
+
ret = memcmp(opt1, opt2, ofs);
if (ret)
return ret;
@@ -335,9 +341,6 @@
int err = -ENOMEM;
substring_t argstr[MAX_OPT_ARGS];
- if (current->nsproxy->net_ns != &init_net)
- return ERR_PTR(-EINVAL);
-
opt = kzalloc(sizeof(*opt), GFP_KERNEL);
if (!opt)
return ERR_PTR(-ENOMEM);
@@ -352,8 +355,8 @@
/* start with defaults */
opt->flags = CEPH_OPT_DEFAULT;
opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT;
- opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */
- opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT; /* seconds */
+ opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT;
+ opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT;
/* get mon ip(s) */
/* ip1[:port1][,ip2[:port2]...] */
@@ -439,13 +442,32 @@
pr_warn("ignoring deprecated osdtimeout option\n");
break;
case Opt_osdkeepalivetimeout:
- opt->osd_keepalive_timeout = intval;
+ /* 0 isn't well defined right now, reject it */
+ if (intval < 1 || intval > INT_MAX / 1000) {
+ pr_err("osdkeepalive out of range\n");
+ err = -EINVAL;
+ goto out;
+ }
+ opt->osd_keepalive_timeout =
+ msecs_to_jiffies(intval * 1000);
break;
case Opt_osd_idle_ttl:
- opt->osd_idle_ttl = intval;
+ /* 0 isn't well defined right now, reject it */
+ if (intval < 1 || intval > INT_MAX / 1000) {
+ pr_err("osd_idle_ttl out of range\n");
+ err = -EINVAL;
+ goto out;
+ }
+ opt->osd_idle_ttl = msecs_to_jiffies(intval * 1000);
break;
case Opt_mount_timeout:
- opt->mount_timeout = intval;
+ /* 0 is "wait forever" (i.e. infinite timeout) */
+ if (intval < 0 || intval > INT_MAX / 1000) {
+ pr_err("mount_timeout out of range\n");
+ err = -EINVAL;
+ goto out;
+ }
+ opt->mount_timeout = msecs_to_jiffies(intval * 1000);
break;
case Opt_share:
@@ -512,12 +534,14 @@
seq_puts(m, "notcp_nodelay,");
if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT)
- seq_printf(m, "mount_timeout=%d,", opt->mount_timeout);
+ seq_printf(m, "mount_timeout=%d,",
+ jiffies_to_msecs(opt->mount_timeout) / 1000);
if (opt->osd_idle_ttl != CEPH_OSD_IDLE_TTL_DEFAULT)
- seq_printf(m, "osd_idle_ttl=%d,", opt->osd_idle_ttl);
+ seq_printf(m, "osd_idle_ttl=%d,",
+ jiffies_to_msecs(opt->osd_idle_ttl) / 1000);
if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT)
seq_printf(m, "osdkeepalivetimeout=%d,",
- opt->osd_keepalive_timeout);
+ jiffies_to_msecs(opt->osd_keepalive_timeout) / 1000);
/* drop redundant comma */
if (m->count != pos)
@@ -587,6 +611,7 @@
fail_monc:
ceph_monc_stop(&client->monc);
fail:
+ ceph_messenger_fini(&client->msgr);
kfree(client);
return ERR_PTR(err);
}
@@ -600,8 +625,8 @@
/* unmount */
ceph_osdc_stop(&client->osdc);
-
ceph_monc_stop(&client->monc);
+ ceph_messenger_fini(&client->msgr);
ceph_debugfs_client_cleanup(client);
@@ -626,8 +651,8 @@
*/
int __ceph_open_session(struct ceph_client *client, unsigned long started)
{
- int err;
- unsigned long timeout = client->options->mount_timeout * HZ;
+ unsigned long timeout = client->options->mount_timeout;
+ long err;
/* open session, and wait for mon and osd maps */
err = ceph_monc_open_session(&client->monc);
@@ -635,16 +660,15 @@
return err;
while (!have_mon_and_osd_map(client)) {
- err = -EIO;
if (timeout && time_after_eq(jiffies, started + timeout))
- return err;
+ return -ETIMEDOUT;
/* wait */
dout("mount waiting for mon_map\n");
err = wait_event_interruptible_timeout(client->auth_wq,
have_mon_and_osd_map(client) || (client->auth_err < 0),
- timeout);
- if (err == -EINTR || err == -ERESTARTSYS)
+ ceph_timeout_jiffies(timeout));
+ if (err < 0)
return err;
if (client->auth_err < 0)
return client->auth_err;
@@ -721,5 +745,5 @@
MODULE_AUTHOR("Sage Weil <sage@newdream.net>");
MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>");
MODULE_AUTHOR("Patience Warnick <patience@newdream.net>");
-MODULE_DESCRIPTION("Ceph filesystem for Linux");
+MODULE_DESCRIPTION("Ceph core library");
MODULE_LICENSE("GPL");
diff --git a/net/ceph/crush/crush.c b/net/ceph/crush/crush.c
index 9d84ce4..80d7c3a 100644
--- a/net/ceph/crush/crush.c
+++ b/net/ceph/crush/crush.c
@@ -1,15 +1,11 @@
-
#ifdef __KERNEL__
# include <linux/slab.h>
+# include <linux/crush/crush.h>
#else
-# include <stdlib.h>
-# include <assert.h>
-# define kfree(x) do { if (x) free(x); } while (0)
-# define BUG_ON(x) assert(!(x))
+# include "crush_compat.h"
+# include "crush.h"
#endif
-#include <linux/crush/crush.h>
-
const char *crush_bucket_alg_name(int alg)
{
switch (alg) {
@@ -134,6 +130,9 @@
kfree(map->rules);
}
+#ifndef __KERNEL__
+ kfree(map->choose_tries);
+#endif
kfree(map);
}
diff --git a/net/ceph/crush/crush_ln_table.h b/net/ceph/crush/crush_ln_table.h
index 6192c7f..aae534c 100644
--- a/net/ceph/crush/crush_ln_table.h
+++ b/net/ceph/crush/crush_ln_table.h
@@ -10,20 +10,20 @@
*
*/
-#if defined(__linux__)
-#include <linux/types.h>
-#elif defined(__FreeBSD__)
-#include <sys/types.h>
-#endif
-
#ifndef CEPH_CRUSH_LN_H
#define CEPH_CRUSH_LN_H
+#ifdef __KERNEL__
+# include <linux/types.h>
+#else
+# include "crush_compat.h"
+#endif
-// RH_LH_tbl[2*k] = 2^48/(1.0+k/128.0)
-// RH_LH_tbl[2*k+1] = 2^48*log2(1.0+k/128.0)
-
-static int64_t __RH_LH_tbl[128*2+2] = {
+/*
+ * RH_LH_tbl[2*k] = 2^48/(1.0+k/128.0)
+ * RH_LH_tbl[2*k+1] = 2^48*log2(1.0+k/128.0)
+ */
+static __s64 __RH_LH_tbl[128*2+2] = {
0x0001000000000000ll, 0x0000000000000000ll, 0x0000fe03f80fe040ll, 0x000002dfca16dde1ll,
0x0000fc0fc0fc0fc1ll, 0x000005b9e5a170b4ll, 0x0000fa232cf25214ll, 0x0000088e68ea899all,
0x0000f83e0f83e0f9ll, 0x00000b5d69bac77ell, 0x0000f6603d980f67ll, 0x00000e26fd5c8555ll,
@@ -89,11 +89,12 @@
0x0000820820820821ll, 0x0000fa2f045e7832ll, 0x000081848da8faf1ll, 0x0000fba577877d7dll,
0x0000810204081021ll, 0x0000fd1a708bbe11ll, 0x0000808080808081ll, 0x0000fe8df263f957ll,
0x0000800000000000ll, 0x0000ffff00000000ll,
- };
+};
-
- // LL_tbl[k] = 2^48*log2(1.0+k/2^15);
-static int64_t __LL_tbl[256] = {
+/*
+ * LL_tbl[k] = 2^48*log2(1.0+k/2^15)
+ */
+static __s64 __LL_tbl[256] = {
0x0000000000000000ull, 0x00000002e2a60a00ull, 0x000000070cb64ec5ull, 0x00000009ef50ce67ull,
0x0000000cd1e588fdull, 0x0000000fb4747e9cull, 0x0000001296fdaf5eull, 0x0000001579811b58ull,
0x000000185bfec2a1ull, 0x0000001b3e76a552ull, 0x0000001e20e8c380ull, 0x0000002103551d43ull,
@@ -160,7 +161,4 @@
0x000002d4562d2ec6ull, 0x000002d73330209dull, 0x000002da102d63b0ull, 0x000002dced24f814ull,
};
-
-
-
#endif
diff --git a/net/ceph/crush/hash.c b/net/ceph/crush/hash.c
index 5bb63e3..ed123af 100644
--- a/net/ceph/crush/hash.c
+++ b/net/ceph/crush/hash.c
@@ -1,6 +1,8 @@
-
-#include <linux/types.h>
-#include <linux/crush/hash.h>
+#ifdef __KERNEL__
+# include <linux/crush/hash.h>
+#else
+# include "hash.h"
+#endif
/*
* Robert Jenkins' function for mixing 32-bit values
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index 5b47736..393bfb2 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -1,27 +1,31 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2015 Intel Corporation All Rights Reserved
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
#ifdef __KERNEL__
# include <linux/string.h>
# include <linux/slab.h>
# include <linux/bug.h>
# include <linux/kernel.h>
-# ifndef dprintk
-# define dprintk(args...)
-# endif
+# include <linux/crush/crush.h>
+# include <linux/crush/hash.h>
#else
-# include <string.h>
-# include <stdio.h>
-# include <stdlib.h>
-# include <assert.h>
-# define BUG_ON(x) assert(!(x))
-# define dprintk(args...) /* printf(args) */
-# define kmalloc(x, f) malloc(x)
-# define kfree(x) free(x)
+# include "crush_compat.h"
+# include "crush.h"
+# include "hash.h"
#endif
-
-#include <linux/crush/crush.h>
-#include <linux/crush/hash.h>
#include "crush_ln_table.h"
+#define dprintk(args...) /* printf(args) */
+
/*
* Implement the core CRUSH mapping algorithm.
*/
@@ -139,7 +143,7 @@
int i;
for (i = bucket->h.size-1; i >= 0; i--) {
- __u64 w = crush_hash32_4(bucket->h.hash,x, bucket->h.items[i],
+ __u64 w = crush_hash32_4(bucket->h.hash, x, bucket->h.items[i],
r, bucket->h.id);
w &= 0xffff;
dprintk("list_choose i=%d x=%d r=%d item %d weight %x "
@@ -238,43 +242,46 @@
return bucket->h.items[high];
}
-// compute 2^44*log2(input+1)
-uint64_t crush_ln(unsigned xin)
+/* compute 2^44*log2(input+1) */
+static __u64 crush_ln(unsigned int xin)
{
- unsigned x=xin, x1;
- int iexpon, index1, index2;
- uint64_t RH, LH, LL, xl64, result;
+ unsigned int x = xin, x1;
+ int iexpon, index1, index2;
+ __u64 RH, LH, LL, xl64, result;
- x++;
+ x++;
- // normalize input
- iexpon = 15;
- while(!(x&0x18000)) { x<<=1; iexpon--; }
+ /* normalize input */
+ iexpon = 15;
+ while (!(x & 0x18000)) {
+ x <<= 1;
+ iexpon--;
+ }
- index1 = (x>>8)<<1;
- // RH ~ 2^56/index1
- RH = __RH_LH_tbl[index1 - 256];
- // LH ~ 2^48 * log2(index1/256)
- LH = __RH_LH_tbl[index1 + 1 - 256];
+ index1 = (x >> 8) << 1;
+ /* RH ~ 2^56/index1 */
+ RH = __RH_LH_tbl[index1 - 256];
+ /* LH ~ 2^48 * log2(index1/256) */
+ LH = __RH_LH_tbl[index1 + 1 - 256];
- // RH*x ~ 2^48 * (2^15 + xf), xf<2^8
- xl64 = (int64_t)x * RH;
- xl64 >>= 48;
- x1 = xl64;
+ /* RH*x ~ 2^48 * (2^15 + xf), xf<2^8 */
+ xl64 = (__s64)x * RH;
+ xl64 >>= 48;
+ x1 = xl64;
- result = iexpon;
- result <<= (12 + 32);
+ result = iexpon;
+ result <<= (12 + 32);
- index2 = x1 & 0xff;
- // LL ~ 2^48*log2(1.0+index2/2^15)
- LL = __LL_tbl[index2];
+ index2 = x1 & 0xff;
+ /* LL ~ 2^48*log2(1.0+index2/2^15) */
+ LL = __LL_tbl[index2];
- LH = LH + LL;
+ LH = LH + LL;
- LH >>= (48-12 - 32);
- result += LH;
+ LH >>= (48 - 12 - 32);
+ result += LH;
- return result;
+ return result;
}
@@ -290,9 +297,9 @@
static int bucket_straw2_choose(struct crush_bucket_straw2 *bucket,
int x, int r)
{
- unsigned i, high = 0;
- unsigned u;
- unsigned w;
+ unsigned int i, high = 0;
+ unsigned int u;
+ unsigned int w;
__s64 ln, draw, high_draw = 0;
for (i = 0; i < bucket->h.size; i++) {
@@ -567,6 +574,10 @@
out[outpos] = item;
outpos++;
count--;
+#ifndef __KERNEL__
+ if (map->choose_tries && ftotal <= map->choose_total_tries)
+ map->choose_tries[ftotal]++;
+#endif
}
dprintk("CHOOSE returns %d\n", outpos);
@@ -610,6 +621,20 @@
}
for (ftotal = 0; left > 0 && ftotal < tries; ftotal++) {
+#ifdef DEBUG_INDEP
+ if (out2 && ftotal) {
+ dprintk("%u %d a: ", ftotal, left);
+ for (rep = outpos; rep < endpos; rep++) {
+ dprintk(" %d", out[rep]);
+ }
+ dprintk("\n");
+ dprintk("%u %d b: ", ftotal, left);
+ for (rep = outpos; rep < endpos; rep++) {
+ dprintk(" %d", out2[rep]);
+ }
+ dprintk("\n");
+ }
+#endif
for (rep = outpos; rep < endpos; rep++) {
if (out[rep] != CRUSH_ITEM_UNDEF)
continue;
@@ -726,6 +751,24 @@
out2[rep] = CRUSH_ITEM_NONE;
}
}
+#ifndef __KERNEL__
+ if (map->choose_tries && ftotal <= map->choose_total_tries)
+ map->choose_tries[ftotal]++;
+#endif
+#ifdef DEBUG_INDEP
+ if (out2) {
+ dprintk("%u %d a: ", ftotal, left);
+ for (rep = outpos; rep < endpos; rep++) {
+ dprintk(" %d", out[rep]);
+ }
+ dprintk("\n");
+ dprintk("%u %d b: ", ftotal, left);
+ for (rep = outpos; rep < endpos; rep++) {
+ dprintk(" %d", out2[rep]);
+ }
+ dprintk("\n");
+ }
+#endif
}
/**
@@ -790,8 +833,15 @@
switch (curstep->op) {
case CRUSH_RULE_TAKE:
- w[0] = curstep->arg1;
- wsize = 1;
+ if ((curstep->arg1 >= 0 &&
+ curstep->arg1 < map->max_devices) ||
+ (-1-curstep->arg1 < map->max_buckets &&
+ map->buckets[-1-curstep->arg1])) {
+ w[0] = curstep->arg1;
+ wsize = 1;
+ } else {
+ dprintk(" bad take value %d\n", curstep->arg1);
+ }
break;
case CRUSH_RULE_SET_CHOOSE_TRIES:
@@ -877,7 +927,7 @@
0);
} else {
out_size = ((numrep < (result_max-osize)) ?
- numrep : (result_max-osize));
+ numrep : (result_max-osize));
crush_choose_indep(
map,
map->buckets[-1-w[i]],
@@ -923,5 +973,3 @@
}
return result_len;
}
-
-
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 073262f..e3be1d2 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -6,6 +6,7 @@
#include <linux/inet.h>
#include <linux/kthread.h>
#include <linux/net.h>
+#include <linux/nsproxy.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/string.h>
@@ -278,7 +279,6 @@
ceph_msgr_slab_exit();
BUG_ON(zero_page == NULL);
- kunmap(zero_page);
page_cache_release(zero_page);
zero_page = NULL;
}
@@ -480,7 +480,7 @@
int ret;
BUG_ON(con->sock);
- ret = sock_create_kern(&init_net, con->peer_addr.in_addr.ss_family,
+ ret = sock_create_kern(read_pnet(&con->msgr->net), paddr->ss_family,
SOCK_STREAM, IPPROTO_TCP, &sock);
if (ret)
return ret;
@@ -1545,7 +1545,7 @@
page = ceph_msg_data_next(&msg->cursor, &page_offset, &length,
&last_piece);
ret = ceph_tcp_sendpage(con->sock, page, page_offset,
- length, last_piece);
+ length, !last_piece);
if (ret <= 0) {
if (do_datacrc)
msg->footer.data_crc = cpu_to_le32(crc);
@@ -1732,17 +1732,17 @@
static bool addr_is_blank(struct sockaddr_storage *ss)
{
+ struct in_addr *addr = &((struct sockaddr_in *)ss)->sin_addr;
+ struct in6_addr *addr6 = &((struct sockaddr_in6 *)ss)->sin6_addr;
+
switch (ss->ss_family) {
case AF_INET:
- return ((struct sockaddr_in *)ss)->sin_addr.s_addr == 0;
+ return addr->s_addr == htonl(INADDR_ANY);
case AF_INET6:
- return
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[0] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[1] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[2] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[3] == 0;
+ return ipv6_addr_any(addr6);
+ default:
+ return true;
}
- return false;
}
static int addr_port(struct sockaddr_storage *ss)
@@ -2945,11 +2945,18 @@
msgr->tcp_nodelay = tcp_nodelay;
atomic_set(&msgr->stopping, 0);
+ write_pnet(&msgr->net, get_net(current->nsproxy->net_ns));
dout("%s %p\n", __func__, msgr);
}
EXPORT_SYMBOL(ceph_messenger_init);
+void ceph_messenger_fini(struct ceph_messenger *msgr)
+{
+ put_net(read_pnet(&msgr->net));
+}
+EXPORT_SYMBOL(ceph_messenger_fini);
+
static void clear_standby(struct ceph_connection *con)
{
/* come back from STANDBY? */
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 2b3cf05..9d6ff121 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -298,21 +298,28 @@
}
EXPORT_SYMBOL(ceph_monc_request_next_osdmap);
+/*
+ * Wait for an osdmap with a given epoch.
+ *
+ * @epoch: epoch to wait for
+ * @timeout: in jiffies, 0 means "wait forever"
+ */
int ceph_monc_wait_osdmap(struct ceph_mon_client *monc, u32 epoch,
unsigned long timeout)
{
unsigned long started = jiffies;
- int ret;
+ long ret;
mutex_lock(&monc->mutex);
while (monc->have_osdmap < epoch) {
mutex_unlock(&monc->mutex);
- if (timeout != 0 && time_after_eq(jiffies, started + timeout))
+ if (timeout && time_after_eq(jiffies, started + timeout))
return -ETIMEDOUT;
ret = wait_event_interruptible_timeout(monc->client->auth_wq,
- monc->have_osdmap >= epoch, timeout);
+ monc->have_osdmap >= epoch,
+ ceph_timeout_jiffies(timeout));
if (ret < 0)
return ret;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index c4ec923..5003367 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -296,6 +296,9 @@
case CEPH_OSD_OP_CMPXATTR:
ceph_osd_data_release(&op->xattr.osd_data);
break;
+ case CEPH_OSD_OP_STAT:
+ ceph_osd_data_release(&op->raw_data_in);
+ break;
default:
break;
}
@@ -450,7 +453,7 @@
*/
static struct ceph_osd_req_op *
_osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which,
- u16 opcode)
+ u16 opcode, u32 flags)
{
struct ceph_osd_req_op *op;
@@ -460,14 +463,15 @@
op = &osd_req->r_ops[which];
memset(op, 0, sizeof (*op));
op->op = opcode;
+ op->flags = flags;
return op;
}
void osd_req_op_init(struct ceph_osd_request *osd_req,
- unsigned int which, u16 opcode)
+ unsigned int which, u16 opcode, u32 flags)
{
- (void)_osd_req_op_init(osd_req, which, opcode);
+ (void)_osd_req_op_init(osd_req, which, opcode, flags);
}
EXPORT_SYMBOL(osd_req_op_init);
@@ -476,7 +480,8 @@
u64 offset, u64 length,
u64 truncate_size, u32 truncate_seq)
{
- struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
+ opcode, 0);
size_t payload_len = 0;
BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE &&
@@ -515,7 +520,8 @@
void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which,
u16 opcode, const char *class, const char *method)
{
- struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
+ opcode, 0);
struct ceph_pagelist *pagelist;
size_t payload_len = 0;
size_t size;
@@ -552,7 +558,8 @@
u16 opcode, const char *name, const void *value,
size_t size, u8 cmp_op, u8 cmp_mode)
{
- struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
+ opcode, 0);
struct ceph_pagelist *pagelist;
size_t payload_len;
@@ -585,7 +592,8 @@
unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag)
{
- struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
+ opcode, 0);
BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH);
@@ -602,7 +610,8 @@
u64 expected_write_size)
{
struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
- CEPH_OSD_OP_SETALLOCHINT);
+ CEPH_OSD_OP_SETALLOCHINT,
+ 0);
op->alloc_hint.expected_object_size = expected_object_size;
op->alloc_hint.expected_write_size = expected_write_size;
@@ -786,7 +795,7 @@
}
if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) {
- osd_req_op_init(req, which, opcode);
+ osd_req_op_init(req, which, opcode, 0);
} else {
u32 object_size = le32_to_cpu(layout->fl_object_size);
u32 object_base = off - objoff;
@@ -1088,7 +1097,7 @@
BUG_ON(!list_empty(&osd->o_osd_lru));
list_add_tail(&osd->o_osd_lru, &osdc->osd_lru);
- osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ;
+ osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl;
}
static void maybe_move_osd_to_lru(struct ceph_osd_client *osdc,
@@ -1199,7 +1208,7 @@
static void __schedule_osd_timeout(struct ceph_osd_client *osdc)
{
schedule_delayed_work(&osdc->timeout_work,
- osdc->client->options->osd_keepalive_timeout * HZ);
+ osdc->client->options->osd_keepalive_timeout);
}
static void __cancel_osd_timeout(struct ceph_osd_client *osdc)
@@ -1567,10 +1576,9 @@
{
struct ceph_osd_client *osdc =
container_of(work, struct ceph_osd_client, timeout_work.work);
+ struct ceph_options *opts = osdc->client->options;
struct ceph_osd_request *req;
struct ceph_osd *osd;
- unsigned long keepalive =
- osdc->client->options->osd_keepalive_timeout * HZ;
struct list_head slow_osds;
dout("timeout\n");
down_read(&osdc->map_sem);
@@ -1586,7 +1594,8 @@
*/
INIT_LIST_HEAD(&slow_osds);
list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) {
- if (time_before(jiffies, req->r_stamp + keepalive))
+ if (time_before(jiffies,
+ req->r_stamp + opts->osd_keepalive_timeout))
break;
osd = req->r_osd;
@@ -1613,8 +1622,7 @@
struct ceph_osd_client *osdc =
container_of(work, struct ceph_osd_client,
osds_timeout_work.work);
- unsigned long delay =
- osdc->client->options->osd_idle_ttl * HZ >> 2;
+ unsigned long delay = osdc->client->options->osd_idle_ttl / 4;
dout("osds timeout\n");
down_read(&osdc->map_sem);
@@ -2619,7 +2627,7 @@
osdc->event_count = 0;
schedule_delayed_work(&osdc->osds_timeout_work,
- round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ));
+ round_jiffies_relative(osdc->client->options->osd_idle_ttl));
err = -ENOMEM;
osdc->req_mempool = mempool_create_kmalloc_pool(10,
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 1579669..4a31258 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -89,7 +89,7 @@
{
int j;
dout("crush_decode_tree_bucket %p to %p\n", *p, end);
- ceph_decode_32_safe(p, end, b->num_nodes, bad);
+ ceph_decode_8_safe(p, end, b->num_nodes, bad);
b->node_weights = kcalloc(b->num_nodes, sizeof(u32), GFP_NOFS);
if (b->node_weights == NULL)
return -ENOMEM;
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 096d914..d4f5f22 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -51,10 +51,7 @@
set_page_dirty_lock(pages[i]);
put_page(pages[i]);
}
- if (is_vmalloc_addr(pages))
- vfree(pages);
- else
- kfree(pages);
+ kvfree(pages);
}
EXPORT_SYMBOL(ceph_put_page_vector);
diff --git a/net/core/datagram.c b/net/core/datagram.c
index b80fb91..4967262 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -131,6 +131,35 @@
goto out;
}
+static int skb_set_peeked(struct sk_buff *skb)
+{
+ struct sk_buff *nskb;
+
+ if (skb->peeked)
+ return 0;
+
+ /* We have to unshare an skb before modifying it. */
+ if (!skb_shared(skb))
+ goto done;
+
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (!nskb)
+ return -ENOMEM;
+
+ skb->prev->next = nskb;
+ skb->next->prev = nskb;
+ nskb->prev = skb->prev;
+ nskb->next = skb->next;
+
+ consume_skb(skb);
+ skb = nskb;
+
+done:
+ skb->peeked = 1;
+
+ return 0;
+}
+
/**
* __skb_recv_datagram - Receive a datagram skbuff
* @sk: socket
@@ -165,7 +194,9 @@
struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
int *peeked, int *off, int *err)
{
+ struct sk_buff_head *queue = &sk->sk_receive_queue;
struct sk_buff *skb, *last;
+ unsigned long cpu_flags;
long timeo;
/*
* Caller is allowed not to check sk->sk_err before skb_recv_datagram()
@@ -184,8 +215,6 @@
* Look at current nfs client by the way...
* However, this function was correct in any case. 8)
*/
- unsigned long cpu_flags;
- struct sk_buff_head *queue = &sk->sk_receive_queue;
int _off = *off;
last = (struct sk_buff *)queue;
@@ -199,7 +228,11 @@
_off -= skb->len;
continue;
}
- skb->peeked = 1;
+
+ error = skb_set_peeked(skb);
+ if (error)
+ goto unlock_err;
+
atomic_inc(&skb->users);
} else
__skb_unlink(skb, queue);
@@ -223,6 +256,8 @@
return NULL;
+unlock_err:
+ spin_unlock_irqrestore(&queue->lock, cpu_flags);
no_packet:
*err = error;
return NULL;
@@ -622,7 +657,8 @@
!skb->csum_complete_sw)
netdev_rx_csum_fault(skb->dev);
}
- skb->csum_valid = !sum;
+ if (!skb_shared(skb))
+ skb->csum_valid = !sum;
return sum;
}
EXPORT_SYMBOL(__skb_checksum_complete_head);
@@ -642,11 +678,13 @@
netdev_rx_csum_fault(skb->dev);
}
- /* Save full packet checksum */
- skb->csum = csum;
- skb->ip_summed = CHECKSUM_COMPLETE;
- skb->csum_complete_sw = 1;
- skb->csum_valid = !sum;
+ if (!skb_shared(skb)) {
+ /* Save full packet checksum */
+ skb->csum = csum;
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb->csum_complete_sw = 1;
+ skb->csum_valid = !sum;
+ }
return sum;
}
diff --git a/net/core/dst.c b/net/core/dst.c
index e956ce6..002144be 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -284,7 +284,9 @@
int newrefcnt;
newrefcnt = atomic_dec_return(&dst->__refcnt);
- WARN_ON(newrefcnt < 0);
+ if (unlikely(newrefcnt < 0))
+ net_warn_ratelimited("%s: dst:%p refcnt:%d\n",
+ __func__, dst, newrefcnt);
if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt)
call_rcu(&dst->rcu_head, dst_destroy_rcu);
}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9e433d5..dc004b1 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1804,10 +1804,13 @@
goto errout;
nla_for_each_nested(attr, tb[IFLA_VF_PORTS], rem) {
- if (nla_type(attr) != IFLA_VF_PORT)
- continue;
- err = nla_parse_nested(port, IFLA_PORT_MAX,
- attr, ifla_port_policy);
+ if (nla_type(attr) != IFLA_VF_PORT ||
+ nla_len(attr) < NLA_HDRLEN) {
+ err = -EINVAL;
+ goto errout;
+ }
+ err = nla_parse_nested(port, IFLA_PORT_MAX, attr,
+ ifla_port_policy);
if (err < 0)
goto errout;
if (!port[IFLA_PORT_VF]) {
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 392e29a..b445d49 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -630,7 +630,7 @@
continue;
cd->sw_addr = be32_to_cpup(sw_addr);
- if (cd->sw_addr > PHY_MAX_ADDR)
+ if (cd->sw_addr >= PHY_MAX_ADDR)
continue;
if (!of_property_read_u32(child, "eeprom-length", &eeprom_len))
@@ -642,6 +642,8 @@
continue;
port_index = be32_to_cpup(port_reg);
+ if (port_index >= DSA_MAX_PORTS)
+ break;
port_name = of_get_property(port, "label", NULL);
if (!port_name)
@@ -666,8 +668,6 @@
goto out_free_chip;
}
- if (port_index == DSA_MAX_PORTS)
- break;
}
}
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index 90c0e83..574fad9 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -20,7 +20,7 @@
#include <net/route.h>
#include <net/tcp_states.h>
-int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
@@ -39,8 +39,6 @@
sk_dst_reset(sk);
- lock_sock(sk);
-
oif = sk->sk_bound_dev_if;
saddr = inet->inet_saddr;
if (ipv4_is_multicast(usin->sin_addr.s_addr)) {
@@ -82,9 +80,19 @@
sk_dst_set(sk, &rt->dst);
err = 0;
out:
- release_sock(sk);
return err;
}
+EXPORT_SYMBOL(__ip4_datagram_connect);
+
+int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+{
+ int res;
+
+ lock_sock(sk);
+ res = __ip4_datagram_connect(sk, uaddr, addr_len);
+ release_sock(sk);
+ return res;
+}
EXPORT_SYMBOL(ip4_datagram_connect);
/* Because UDP xmit path can manipulate sk_dst_cache without holding
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index a50dc6d4..31f71b1 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -351,7 +351,7 @@
ihl = ip_hdrlen(skb);
/* Determine the position of this fragment. */
- end = offset + skb->len - ihl;
+ end = offset + skb->len - skb_network_offset(skb) - ihl;
err = -EINVAL;
/* Is this the final fragment? */
@@ -381,7 +381,7 @@
goto err;
err = -ENOMEM;
- if (!pskb_pull(skb, ihl))
+ if (!pskb_pull(skb, skb_network_offset(skb) + ihl))
goto err;
err = pskb_trim_rcsum(skb, end - offset);
@@ -641,6 +641,8 @@
iph->frag_off = 0;
}
+ ip_send_check(iph);
+
IP_INC_STATS_BH(net, IPSTATS_MIB_REASMOKS);
qp->q.fragments = NULL;
qp->q.fragments_tail = NULL;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 684f095..728f5b3 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1917,14 +1917,13 @@
const struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
- bool new_recovery = false;
+ bool new_recovery = icsk->icsk_ca_state < TCP_CA_Recovery;
bool is_reneg; /* is receiver reneging on SACKs? */
/* Reduce ssthresh if it has not yet been made inside this window. */
if (icsk->icsk_ca_state <= TCP_CA_Disorder ||
!after(tp->high_seq, tp->snd_una) ||
(icsk->icsk_ca_state == TCP_CA_Loss && !icsk->icsk_retransmits)) {
- new_recovery = true;
tp->prior_ssthresh = tcp_current_ssthresh(sk);
tp->snd_ssthresh = icsk->icsk_ca_ops->ssthresh(sk);
tcp_ca_event(sk, CA_EVENT_LOSS);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 62d908e..b10a889 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -40,7 +40,7 @@
return ipv6_addr_v4mapped(a) && (a->s6_addr32[3] == 0);
}
-int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+static int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr;
struct inet_sock *inet = inet_sk(sk);
@@ -56,7 +56,7 @@
if (usin->sin6_family == AF_INET) {
if (__ipv6_only_sock(sk))
return -EAFNOSUPPORT;
- err = ip4_datagram_connect(sk, uaddr, addr_len);
+ err = __ip4_datagram_connect(sk, uaddr, addr_len);
goto ipv4_connected;
}
@@ -98,9 +98,9 @@
sin.sin_addr.s_addr = daddr->s6_addr32[3];
sin.sin_port = usin->sin6_port;
- err = ip4_datagram_connect(sk,
- (struct sockaddr *) &sin,
- sizeof(sin));
+ err = __ip4_datagram_connect(sk,
+ (struct sockaddr *) &sin,
+ sizeof(sin));
ipv4_connected:
if (err)
@@ -204,6 +204,16 @@
fl6_sock_release(flowlabel);
return err;
}
+
+int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+{
+ int res;
+
+ lock_sock(sk);
+ res = __ip6_datagram_connect(sk, uaddr, addr_len);
+ release_sock(sk);
+ return res;
+}
EXPORT_SYMBOL_GPL(ip6_datagram_connect);
int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *uaddr,
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index e893cd1..08b6204 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -292,8 +292,6 @@
static const struct net_offload sit_offload = {
.callbacks = {
.gso_segment = ipv6_gso_segment,
- .gro_receive = ipv6_gro_receive,
- .gro_complete = ipv6_gro_complete,
},
};
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 29236e8..c09c013 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -723,6 +723,7 @@
debugfs_remove_recursive(sdata->vif.debugfs_dir);
sdata->vif.debugfs_dir = NULL;
+ sdata->debugfs.subdir_stations = NULL;
}
void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index ed1edac..553ac6d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1863,10 +1863,6 @@
ieee80211_teardown_sdata(sdata);
}
-/*
- * Remove all interfaces, may only be called at hardware unregistration
- * time because it doesn't do RCU-safe list removals.
- */
void ieee80211_remove_interfaces(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata, *tmp;
@@ -1875,14 +1871,21 @@
ASSERT_RTNL();
- /*
- * Close all AP_VLAN interfaces first, as otherwise they
- * might be closed while the AP interface they belong to
- * is closed, causing unregister_netdevice_many() to crash.
+ /* Before destroying the interfaces, make sure they're all stopped so
+ * that the hardware is stopped. Otherwise, the driver might still be
+ * iterating the interfaces during the shutdown, e.g. from a worker
+ * or from RX processing or similar, and if it does so (using atomic
+ * iteration) while we're manipulating the list, the iteration will
+ * crash.
+ *
+ * After this, the hardware should be stopped and the driver should
+ * have stopped all of its activities, so that we can do RCU-unaware
+ * manipulations of the interface list below.
*/
- list_for_each_entry(sdata, &local->interfaces, list)
- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
- dev_close(sdata->dev);
+ cfg80211_shutdown_all_interfaces(local->hw.wiphy);
+
+ WARN(local->open_count, "%s: open count remains %d\n",
+ wiphy_name(local->hw.wiphy), local->open_count);
mutex_lock(&local->iflist_mtx);
list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 5438d13..3b59099 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -306,7 +306,7 @@
if (action == WLAN_SP_MESH_PEERING_CONFIRM) {
/* AID */
pos = skb_put(skb, 2);
- put_unaligned_le16(plid, pos + 2);
+ put_unaligned_le16(plid, pos);
}
if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
@@ -1122,6 +1122,9 @@
WLAN_SP_MESH_PEERING_CONFIRM) {
baseaddr += 4;
baselen += 4;
+
+ if (baselen > len)
+ return;
}
ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems);
mesh_process_plink_frame(sdata, mgmt, &elems);
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 06b60980..b676b9f 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -76,6 +76,22 @@
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
ieee80211_mgd_quiesce(sdata);
+ /* If suspended during TX in progress, and wowlan
+ * is enabled (connection will be active) there
+ * can be a race where the driver is put out
+ * of power-save due to TX and during suspend
+ * dynamic_ps_timer is cancelled and TX packet
+ * is flushed, leaving the driver in ACTIVE even
+ * after resuming until dynamic_ps_timer puts
+ * driver back in DOZE.
+ */
+ if (sdata->u.mgd.associated &&
+ sdata->u.mgd.powersave &&
+ !(local->hw.conf.flags & IEEE80211_CONF_PS)) {
+ local->hw.conf.flags |= IEEE80211_CONF_PS;
+ ieee80211_hw_config(local,
+ IEEE80211_CONF_CHANGE_PS);
+ }
}
err = drv_suspend(local, wowlan);
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index ad31b2d..8db6e29 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -60,6 +60,7 @@
struct ieee80211_channel *ch;
struct cfg80211_chan_def chandef;
int i, subband_start;
+ struct wiphy *wiphy = sdata->local->hw.wiphy;
for (i = start; i <= end; i += spacing) {
if (!ch_cnt)
@@ -70,9 +71,8 @@
/* we will be active on the channel */
cfg80211_chandef_create(&chandef, ch,
NL80211_CHAN_NO_HT);
- if (cfg80211_reg_can_beacon(sdata->local->hw.wiphy,
- &chandef,
- sdata->wdev.iftype)) {
+ if (cfg80211_reg_can_beacon_relax(wiphy, &chandef,
+ sdata->wdev.iftype)) {
ch_cnt++;
/*
* check if the next channel is also part of
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8410bb3..b823350 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1117,7 +1117,9 @@
queued = true;
info->control.vif = &tx->sdata->vif;
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
- info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
+ info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS |
+ IEEE80211_TX_CTL_NO_PS_BUFFER |
+ IEEE80211_TX_STATUS_EOSP;
__skb_queue_tail(&tid_tx->pending, skb);
if (skb_queue_len(&tid_tx->pending) > STA_MAX_TX_BUFFER)
purge_skb = __skb_dequeue(&tid_tx->pending);
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 1d56903..1df7828 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -339,6 +339,9 @@
bpf_prog_put(prog->filter);
else
bpf_prog_destroy(prog->filter);
+
+ kfree(prog->bpf_ops);
+ kfree(prog->bpf_name);
}
static struct tc_action_ops act_bpf_ops __read_mostly = {
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index c79ecfd..e5168f8 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -378,7 +378,7 @@
goto errout;
if (oldprog) {
- list_replace_rcu(&prog->link, &oldprog->link);
+ list_replace_rcu(&oldprog->link, &prog->link);
tcf_unbind_filter(tp, &oldprog->res);
call_rcu(&oldprog->rcu, __cls_bpf_delete_prog);
} else {
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 76bc3a2..bb2a0f5 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -425,6 +425,8 @@
if (!fnew)
goto err2;
+ tcf_exts_init(&fnew->exts, TCA_FLOW_ACT, TCA_FLOW_POLICE);
+
fold = (struct flow_filter *)*arg;
if (fold) {
err = -EINVAL;
@@ -486,7 +488,6 @@
fnew->mask = ~0U;
fnew->tp = tp;
get_random_bytes(&fnew->hashrnd, 4);
- tcf_exts_init(&fnew->exts, TCA_FLOW_ACT, TCA_FLOW_POLICE);
}
fnew->perturb_timer.function = flow_perturbation;
@@ -526,7 +527,7 @@
if (*arg == 0)
list_add_tail_rcu(&fnew->list, &head->filters);
else
- list_replace_rcu(&fnew->list, &fold->list);
+ list_replace_rcu(&fold->list, &fnew->list);
*arg = (unsigned long)fnew;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 9d37ccd..2f3d03f 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -499,7 +499,7 @@
*arg = (unsigned long) fnew;
if (fold) {
- list_replace_rcu(&fnew->list, &fold->list);
+ list_replace_rcu(&fold->list, &fnew->list);
tcf_unbind_filter(tp, &fold->res);
call_rcu(&fold->rcu, fl_destroy_filter);
} else {
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index d75993f..21ca33c 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -155,14 +155,23 @@
skb = dequeue_head(flow);
len = qdisc_pkt_len(skb);
q->backlogs[idx] -= len;
- kfree_skb(skb);
sch->q.qlen--;
qdisc_qstats_drop(sch);
qdisc_qstats_backlog_dec(sch, skb);
+ kfree_skb(skb);
flow->dropped++;
return idx;
}
+static unsigned int fq_codel_qdisc_drop(struct Qdisc *sch)
+{
+ unsigned int prev_backlog;
+
+ prev_backlog = sch->qstats.backlog;
+ fq_codel_drop(sch);
+ return prev_backlog - sch->qstats.backlog;
+}
+
static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch)
{
struct fq_codel_sched_data *q = qdisc_priv(sch);
@@ -604,7 +613,7 @@
.enqueue = fq_codel_enqueue,
.dequeue = fq_codel_dequeue,
.peek = qdisc_peek_dequeued,
- .drop = fq_codel_drop,
+ .drop = fq_codel_qdisc_drop,
.init = fq_codel_init,
.reset = fq_codel_reset,
.destroy = fq_codel_destroy,
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 7d14926..52f75a5 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -306,10 +306,10 @@
len = qdisc_pkt_len(skb);
slot->backlog -= len;
sfq_dec(q, x);
- kfree_skb(skb);
sch->q.qlen--;
qdisc_qstats_drop(sch);
qdisc_qstats_backlog_dec(sch, skb);
+ kfree_skb(skb);
return len;
}
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index 936ad0a..b512fbd 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -14,6 +14,6 @@
sunrpc_syms.o cache.o rpc_pipe.o \
svc_xprt.o
sunrpc-$(CONFIG_SUNRPC_DEBUG) += debugfs.o
-sunrpc-$(CONFIG_SUNRPC_BACKCHANNEL) += backchannel_rqst.o bc_svc.o
+sunrpc-$(CONFIG_SUNRPC_BACKCHANNEL) += backchannel_rqst.o
sunrpc-$(CONFIG_PROC_FS) += stats.o
sunrpc-$(CONFIG_SYSCTL) += sysctl.o
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 9dd0ea8d..9825ff0 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -37,16 +37,18 @@
*/
static inline int xprt_need_to_requeue(struct rpc_xprt *xprt)
{
- return xprt->bc_alloc_count > 0;
+ return xprt->bc_alloc_count < atomic_read(&xprt->bc_free_slots);
}
static inline void xprt_inc_alloc_count(struct rpc_xprt *xprt, unsigned int n)
{
+ atomic_add(n, &xprt->bc_free_slots);
xprt->bc_alloc_count += n;
}
static inline int xprt_dec_alloc_count(struct rpc_xprt *xprt, unsigned int n)
{
+ atomic_sub(n, &xprt->bc_free_slots);
return xprt->bc_alloc_count -= n;
}
@@ -60,13 +62,62 @@
dprintk("RPC: free allocations for req= %p\n", req);
WARN_ON_ONCE(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
- xbufp = &req->rq_private_buf;
+ xbufp = &req->rq_rcv_buf;
free_page((unsigned long)xbufp->head[0].iov_base);
xbufp = &req->rq_snd_buf;
free_page((unsigned long)xbufp->head[0].iov_base);
kfree(req);
}
+static int xprt_alloc_xdr_buf(struct xdr_buf *buf, gfp_t gfp_flags)
+{
+ struct page *page;
+ /* Preallocate one XDR receive buffer */
+ page = alloc_page(gfp_flags);
+ if (page == NULL)
+ return -ENOMEM;
+ buf->head[0].iov_base = page_address(page);
+ buf->head[0].iov_len = PAGE_SIZE;
+ buf->tail[0].iov_base = NULL;
+ buf->tail[0].iov_len = 0;
+ buf->page_len = 0;
+ buf->len = 0;
+ buf->buflen = PAGE_SIZE;
+ return 0;
+}
+
+static
+struct rpc_rqst *xprt_alloc_bc_req(struct rpc_xprt *xprt, gfp_t gfp_flags)
+{
+ struct rpc_rqst *req;
+
+ /* Pre-allocate one backchannel rpc_rqst */
+ req = kzalloc(sizeof(*req), gfp_flags);
+ if (req == NULL)
+ return NULL;
+
+ req->rq_xprt = xprt;
+ INIT_LIST_HEAD(&req->rq_list);
+ INIT_LIST_HEAD(&req->rq_bc_list);
+
+ /* Preallocate one XDR receive buffer */
+ if (xprt_alloc_xdr_buf(&req->rq_rcv_buf, gfp_flags) < 0) {
+ printk(KERN_ERR "Failed to create bc receive xbuf\n");
+ goto out_free;
+ }
+ req->rq_rcv_buf.len = PAGE_SIZE;
+
+ /* Preallocate one XDR send buffer */
+ if (xprt_alloc_xdr_buf(&req->rq_snd_buf, gfp_flags) < 0) {
+ printk(KERN_ERR "Failed to create bc snd xbuf\n");
+ goto out_free;
+ }
+ return req;
+out_free:
+ xprt_free_allocation(req);
+ return NULL;
+}
+
/*
* Preallocate up to min_reqs structures and related buffers for use
* by the backchannel. This function can be called multiple times
@@ -87,9 +138,7 @@
*/
int xprt_setup_backchannel(struct rpc_xprt *xprt, unsigned int min_reqs)
{
- struct page *page_rcv = NULL, *page_snd = NULL;
- struct xdr_buf *xbufp = NULL;
- struct rpc_rqst *req, *tmp;
+ struct rpc_rqst *req;
struct list_head tmp_list;
int i;
@@ -106,7 +155,7 @@
INIT_LIST_HEAD(&tmp_list);
for (i = 0; i < min_reqs; i++) {
/* Pre-allocate one backchannel rpc_rqst */
- req = kzalloc(sizeof(struct rpc_rqst), GFP_KERNEL);
+ req = xprt_alloc_bc_req(xprt, GFP_KERNEL);
if (req == NULL) {
printk(KERN_ERR "Failed to create bc rpc_rqst\n");
goto out_free;
@@ -115,41 +164,6 @@
/* Add the allocated buffer to the tmp list */
dprintk("RPC: adding req= %p\n", req);
list_add(&req->rq_bc_pa_list, &tmp_list);
-
- req->rq_xprt = xprt;
- INIT_LIST_HEAD(&req->rq_list);
- INIT_LIST_HEAD(&req->rq_bc_list);
-
- /* Preallocate one XDR receive buffer */
- page_rcv = alloc_page(GFP_KERNEL);
- if (page_rcv == NULL) {
- printk(KERN_ERR "Failed to create bc receive xbuf\n");
- goto out_free;
- }
- xbufp = &req->rq_rcv_buf;
- xbufp->head[0].iov_base = page_address(page_rcv);
- xbufp->head[0].iov_len = PAGE_SIZE;
- xbufp->tail[0].iov_base = NULL;
- xbufp->tail[0].iov_len = 0;
- xbufp->page_len = 0;
- xbufp->len = PAGE_SIZE;
- xbufp->buflen = PAGE_SIZE;
-
- /* Preallocate one XDR send buffer */
- page_snd = alloc_page(GFP_KERNEL);
- if (page_snd == NULL) {
- printk(KERN_ERR "Failed to create bc snd xbuf\n");
- goto out_free;
- }
-
- xbufp = &req->rq_snd_buf;
- xbufp->head[0].iov_base = page_address(page_snd);
- xbufp->head[0].iov_len = 0;
- xbufp->tail[0].iov_base = NULL;
- xbufp->tail[0].iov_len = 0;
- xbufp->page_len = 0;
- xbufp->len = 0;
- xbufp->buflen = PAGE_SIZE;
}
/*
@@ -167,7 +181,10 @@
/*
* Memory allocation failed, free the temporary list
*/
- list_for_each_entry_safe(req, tmp, &tmp_list, rq_bc_pa_list) {
+ while (!list_empty(&tmp_list)) {
+ req = list_first_entry(&tmp_list,
+ struct rpc_rqst,
+ rq_bc_pa_list);
list_del(&req->rq_bc_pa_list);
xprt_free_allocation(req);
}
@@ -217,9 +234,15 @@
struct rpc_rqst *req = NULL;
dprintk("RPC: allocate a backchannel request\n");
- if (list_empty(&xprt->bc_pa_list))
+ if (atomic_read(&xprt->bc_free_slots) <= 0)
goto not_found;
-
+ if (list_empty(&xprt->bc_pa_list)) {
+ req = xprt_alloc_bc_req(xprt, GFP_ATOMIC);
+ if (!req)
+ goto not_found;
+ /* Note: this 'free' request adds it to xprt->bc_pa_list */
+ xprt_free_bc_request(req);
+ }
req = list_first_entry(&xprt->bc_pa_list, struct rpc_rqst,
rq_bc_pa_list);
req->rq_reply_bytes_recvd = 0;
@@ -245,11 +268,21 @@
req->rq_connect_cookie = xprt->connect_cookie - 1;
smp_mb__before_atomic();
- WARN_ON_ONCE(!test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
clear_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state);
smp_mb__after_atomic();
- if (!xprt_need_to_requeue(xprt)) {
+ /*
+ * Return it to the list of preallocations so that it
+ * may be reused by a new callback request.
+ */
+ spin_lock_bh(&xprt->bc_pa_lock);
+ if (xprt_need_to_requeue(xprt)) {
+ list_add_tail(&req->rq_bc_pa_list, &xprt->bc_pa_list);
+ xprt->bc_alloc_count++;
+ req = NULL;
+ }
+ spin_unlock_bh(&xprt->bc_pa_lock);
+ if (req != NULL) {
/*
* The last remaining session was destroyed while this
* entry was in use. Free the entry and don't attempt
@@ -260,14 +293,6 @@
xprt_free_allocation(req);
return;
}
-
- /*
- * Return it to the list of preallocations so that it
- * may be reused by a new callback request.
- */
- spin_lock_bh(&xprt->bc_pa_lock);
- list_add_tail(&req->rq_bc_pa_list, &xprt->bc_pa_list);
- spin_unlock_bh(&xprt->bc_pa_lock);
}
/*
@@ -311,6 +336,7 @@
spin_lock(&xprt->bc_pa_lock);
list_del(&req->rq_bc_pa_list);
+ xprt->bc_alloc_count--;
spin_unlock(&xprt->bc_pa_lock);
req->rq_private_buf.len = copied;
diff --git a/net/sunrpc/bc_svc.c b/net/sunrpc/bc_svc.c
deleted file mode 100644
index 15c7a8a..0000000
--- a/net/sunrpc/bc_svc.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/******************************************************************************
-
-(c) 2007 Network Appliance, Inc. All Rights Reserved.
-(c) 2009 NetApp. All Rights Reserved.
-
-NetApp provides this source code under the GPL v2 License.
-The GPL v2 license is available at
-http://opensource.org/licenses/gpl-license.php.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-******************************************************************************/
-
-/*
- * The NFSv4.1 callback service helper routines.
- * They implement the transport level processing required to send the
- * reply over an existing open connection previously established by the client.
- */
-
-#include <linux/module.h>
-
-#include <linux/sunrpc/xprt.h>
-#include <linux/sunrpc/sched.h>
-#include <linux/sunrpc/bc_xprt.h>
-
-#define RPCDBG_FACILITY RPCDBG_SVCDSP
-
-/* Empty callback ops */
-static const struct rpc_call_ops nfs41_callback_ops = {
-};
-
-
-/*
- * Send the callback reply
- */
-int bc_send(struct rpc_rqst *req)
-{
- struct rpc_task *task;
- int ret;
-
- dprintk("RPC: bc_send req= %p\n", req);
- task = rpc_run_bc_task(req, &nfs41_callback_ops);
- if (IS_ERR(task))
- ret = PTR_ERR(task);
- else {
- WARN_ON_ONCE(atomic_read(&task->tk_count) != 1);
- ret = task->tk_status;
- rpc_put_task(task);
- }
- dprintk("RPC: bc_send ret= %d\n", ret);
- return ret;
-}
-
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index e6ce151..cbc6af9 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -891,15 +891,8 @@
task->tk_flags |= RPC_TASK_SOFT;
if (clnt->cl_noretranstimeo)
task->tk_flags |= RPC_TASK_NO_RETRANS_TIMEOUT;
- if (sk_memalloc_socks()) {
- struct rpc_xprt *xprt;
-
- rcu_read_lock();
- xprt = rcu_dereference(clnt->cl_xprt);
- if (xprt->swapper)
- task->tk_flags |= RPC_TASK_SWAPPER;
- rcu_read_unlock();
- }
+ if (atomic_read(&clnt->cl_swapper))
+ task->tk_flags |= RPC_TASK_SWAPPER;
/* Add to the client's list of all tasks */
spin_lock(&clnt->cl_lock);
list_add_tail(&task->tk_task, &clnt->cl_tasks);
@@ -1031,15 +1024,14 @@
* rpc_run_bc_task - Allocate a new RPC task for backchannel use, then run
* rpc_execute against it
* @req: RPC request
- * @tk_ops: RPC call ops
*/
-struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req,
- const struct rpc_call_ops *tk_ops)
+struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req)
{
struct rpc_task *task;
struct xdr_buf *xbufp = &req->rq_snd_buf;
struct rpc_task_setup task_setup_data = {
- .callback_ops = tk_ops,
+ .callback_ops = &rpc_default_ops,
+ .flags = RPC_TASK_SOFTCONN,
};
dprintk("RPC: rpc_run_bc_task req= %p\n", req);
@@ -1614,6 +1606,7 @@
req->rq_callsize + req->rq_rcvsize);
if (req->rq_buffer != NULL)
return;
+ xprt_inject_disconnect(xprt);
dprintk("RPC: %5u rpc_buffer allocation failed\n", task->tk_pid);
@@ -1951,33 +1944,36 @@
{
struct rpc_rqst *req = task->tk_rqstp;
- if (!xprt_prepare_transmit(task)) {
- /*
- * Could not reserve the transport. Try again after the
- * transport is released.
- */
- task->tk_status = 0;
- task->tk_action = call_bc_transmit;
- return;
- }
+ if (!xprt_prepare_transmit(task))
+ goto out_retry;
- task->tk_action = rpc_exit_task;
if (task->tk_status < 0) {
printk(KERN_NOTICE "RPC: Could not send backchannel reply "
"error: %d\n", task->tk_status);
- return;
+ goto out_done;
}
+ if (req->rq_connect_cookie != req->rq_xprt->connect_cookie)
+ req->rq_bytes_sent = 0;
xprt_transmit(task);
+
+ if (task->tk_status == -EAGAIN)
+ goto out_nospace;
+
xprt_end_transmit(task);
dprint_status(task);
switch (task->tk_status) {
case 0:
/* Success */
- break;
case -EHOSTDOWN:
case -EHOSTUNREACH:
case -ENETUNREACH:
+ case -ECONNRESET:
+ case -ECONNREFUSED:
+ case -EADDRINUSE:
+ case -ENOTCONN:
+ case -EPIPE:
+ break;
case -ETIMEDOUT:
/*
* Problem reaching the server. Disconnect and let the
@@ -2002,6 +1998,13 @@
break;
}
rpc_wake_up_queued_task(&req->rq_xprt->pending, task);
+out_done:
+ task->tk_action = rpc_exit_task;
+ return;
+out_nospace:
+ req->rq_connect_cookie = req->rq_xprt->connect_cookie;
+out_retry:
+ task->tk_status = 0;
}
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
@@ -2476,3 +2479,59 @@
spin_unlock(&sn->rpc_client_lock);
}
#endif
+
+#if IS_ENABLED(CONFIG_SUNRPC_SWAP)
+int
+rpc_clnt_swap_activate(struct rpc_clnt *clnt)
+{
+ int ret = 0;
+ struct rpc_xprt *xprt;
+
+ if (atomic_inc_return(&clnt->cl_swapper) == 1) {
+retry:
+ rcu_read_lock();
+ xprt = xprt_get(rcu_dereference(clnt->cl_xprt));
+ rcu_read_unlock();
+ if (!xprt) {
+ /*
+ * If we didn't get a reference, then we likely are
+ * racing with a migration event. Wait for a grace
+ * period and try again.
+ */
+ synchronize_rcu();
+ goto retry;
+ }
+
+ ret = xprt_enable_swap(xprt);
+ xprt_put(xprt);
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(rpc_clnt_swap_activate);
+
+void
+rpc_clnt_swap_deactivate(struct rpc_clnt *clnt)
+{
+ struct rpc_xprt *xprt;
+
+ if (atomic_dec_if_positive(&clnt->cl_swapper) == 0) {
+retry:
+ rcu_read_lock();
+ xprt = xprt_get(rcu_dereference(clnt->cl_xprt));
+ rcu_read_unlock();
+ if (!xprt) {
+ /*
+ * If we didn't get a reference, then we likely are
+ * racing with a migration event. Wait for a grace
+ * period and try again.
+ */
+ synchronize_rcu();
+ goto retry;
+ }
+
+ xprt_disable_swap(xprt);
+ xprt_put(xprt);
+ }
+}
+EXPORT_SYMBOL_GPL(rpc_clnt_swap_deactivate);
+#endif /* CONFIG_SUNRPC_SWAP */
diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c
index 82962f7..e7b4d93 100644
--- a/net/sunrpc/debugfs.c
+++ b/net/sunrpc/debugfs.c
@@ -10,9 +10,12 @@
#include "netns.h"
static struct dentry *topdir;
+static struct dentry *rpc_fault_dir;
static struct dentry *rpc_clnt_dir;
static struct dentry *rpc_xprt_dir;
+unsigned int rpc_inject_disconnect;
+
struct rpc_clnt_iter {
struct rpc_clnt *clnt;
loff_t pos;
@@ -257,6 +260,8 @@
debugfs_remove_recursive(xprt->debugfs);
xprt->debugfs = NULL;
}
+
+ atomic_set(&xprt->inject_disconnect, rpc_inject_disconnect);
}
void
@@ -266,11 +271,79 @@
xprt->debugfs = NULL;
}
+static int
+fault_open(struct inode *inode, struct file *filp)
+{
+ filp->private_data = kmalloc(128, GFP_KERNEL);
+ if (!filp->private_data)
+ return -ENOMEM;
+ return 0;
+}
+
+static int
+fault_release(struct inode *inode, struct file *filp)
+{
+ kfree(filp->private_data);
+ return 0;
+}
+
+static ssize_t
+fault_disconnect_read(struct file *filp, char __user *user_buf,
+ size_t len, loff_t *offset)
+{
+ char *buffer = (char *)filp->private_data;
+ size_t size;
+
+ size = sprintf(buffer, "%u\n", rpc_inject_disconnect);
+ return simple_read_from_buffer(user_buf, len, offset, buffer, size);
+}
+
+static ssize_t
+fault_disconnect_write(struct file *filp, const char __user *user_buf,
+ size_t len, loff_t *offset)
+{
+ char buffer[16];
+
+ if (len >= sizeof(buffer))
+ len = sizeof(buffer) - 1;
+ if (copy_from_user(buffer, user_buf, len))
+ return -EFAULT;
+ buffer[len] = '\0';
+ if (kstrtouint(buffer, 10, &rpc_inject_disconnect))
+ return -EINVAL;
+ return len;
+}
+
+static const struct file_operations fault_disconnect_fops = {
+ .owner = THIS_MODULE,
+ .open = fault_open,
+ .read = fault_disconnect_read,
+ .write = fault_disconnect_write,
+ .release = fault_release,
+};
+
+static struct dentry *
+inject_fault_dir(struct dentry *topdir)
+{
+ struct dentry *faultdir;
+
+ faultdir = debugfs_create_dir("inject_fault", topdir);
+ if (!faultdir)
+ return NULL;
+
+ if (!debugfs_create_file("disconnect", S_IFREG | S_IRUSR, faultdir,
+ NULL, &fault_disconnect_fops))
+ return NULL;
+
+ return faultdir;
+}
+
void __exit
sunrpc_debugfs_exit(void)
{
debugfs_remove_recursive(topdir);
topdir = NULL;
+ rpc_fault_dir = NULL;
rpc_clnt_dir = NULL;
rpc_xprt_dir = NULL;
}
@@ -282,6 +355,10 @@
if (!topdir)
return;
+ rpc_fault_dir = inject_fault_dir(topdir);
+ if (!rpc_fault_dir)
+ goto out_remove;
+
rpc_clnt_dir = debugfs_create_dir("rpc_clnt", topdir);
if (!rpc_clnt_dir)
goto out_remove;
@@ -294,5 +371,6 @@
out_remove:
debugfs_remove_recursive(topdir);
topdir = NULL;
+ rpc_fault_dir = NULL;
rpc_clnt_dir = NULL;
}
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 852ae60..5a16d8d 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1350,6 +1350,11 @@
{
struct kvec *argv = &rqstp->rq_arg.head[0];
struct kvec *resv = &rqstp->rq_res.head[0];
+ struct rpc_task *task;
+ int proc_error;
+ int error;
+
+ dprintk("svc: %s(%p)\n", __func__, req);
/* Build the svc_rqst used by the common processing routine */
rqstp->rq_xprt = serv->sv_bc_xprt;
@@ -1372,21 +1377,36 @@
/*
* Skip the next two words because they've already been
- * processed in the trasport
+ * processed in the transport
*/
svc_getu32(argv); /* XID */
svc_getnl(argv); /* CALLDIR */
- /* Returns 1 for send, 0 for drop */
- if (svc_process_common(rqstp, argv, resv)) {
- memcpy(&req->rq_snd_buf, &rqstp->rq_res,
- sizeof(req->rq_snd_buf));
- return bc_send(req);
- } else {
- /* drop request */
+ /* Parse and execute the bc call */
+ proc_error = svc_process_common(rqstp, argv, resv);
+
+ atomic_inc(&req->rq_xprt->bc_free_slots);
+ if (!proc_error) {
+ /* Processing error: drop the request */
xprt_free_bc_request(req);
return 0;
}
+
+ /* Finally, send the reply synchronously */
+ memcpy(&req->rq_snd_buf, &rqstp->rq_res, sizeof(req->rq_snd_buf));
+ task = rpc_run_bc_task(req);
+ if (IS_ERR(task)) {
+ error = PTR_ERR(task);
+ goto out;
+ }
+
+ WARN_ON_ONCE(atomic_read(&task->tk_count) != 1);
+ error = task->tk_status;
+ rpc_put_task(task);
+
+out:
+ dprintk("svc: %s(), error=%d\n", __func__, error);
+ return error;
}
EXPORT_SYMBOL_GPL(bc_svc_process);
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 1d4fe24..ab5dd62 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -68,6 +68,7 @@
static void xprt_request_init(struct rpc_task *, struct rpc_xprt *);
static void xprt_connect_status(struct rpc_task *task);
static int __xprt_get_cong(struct rpc_xprt *, struct rpc_task *);
+static void __xprt_put_cong(struct rpc_xprt *, struct rpc_rqst *);
static void xprt_destroy(struct rpc_xprt *xprt);
static DEFINE_SPINLOCK(xprt_list_lock);
@@ -250,6 +251,8 @@
}
xprt_clear_locked(xprt);
out_sleep:
+ if (req)
+ __xprt_put_cong(xprt, req);
dprintk("RPC: %5u failed to lock transport %p\n", task->tk_pid, xprt);
task->tk_timeout = 0;
task->tk_status = -EAGAIN;
@@ -608,8 +611,8 @@
struct rpc_xprt *xprt =
container_of(work, struct rpc_xprt, task_cleanup);
- xprt->ops->close(xprt);
clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
+ xprt->ops->close(xprt);
xprt_release_write(xprt, NULL);
}
@@ -967,6 +970,7 @@
task->tk_status = status;
return;
}
+ xprt_inject_disconnect(xprt);
dprintk("RPC: %5u xmit complete\n", task->tk_pid);
task->tk_flags |= RPC_TASK_SENT;
@@ -1285,6 +1289,7 @@
spin_unlock_bh(&xprt->transport_lock);
if (req->rq_buffer)
xprt->ops->buf_free(req->rq_buffer);
+ xprt_inject_disconnect(xprt);
if (req->rq_cred != NULL)
put_rpccred(req->rq_cred);
task->tk_rqstp = NULL;
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 302d4eb..f1e8daf 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -11,6 +11,21 @@
* can take tens of usecs to complete.
*/
+/* Normal operation
+ *
+ * A Memory Region is prepared for RDMA READ or WRITE using the
+ * ib_map_phys_fmr verb (fmr_op_map). When the RDMA operation is
+ * finished, the Memory Region is unmapped using the ib_unmap_fmr
+ * verb (fmr_op_unmap).
+ */
+
+/* Transport recovery
+ *
+ * After a transport reconnect, fmr_op_map re-uses the MR already
+ * allocated for the RPC, but generates a fresh rkey then maps the
+ * MR again. This process is synchronous.
+ */
+
#include "xprt_rdma.h"
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
@@ -50,19 +65,28 @@
struct rpcrdma_mw *r;
int i, rc;
+ spin_lock_init(&buf->rb_mwlock);
INIT_LIST_HEAD(&buf->rb_mws);
INIT_LIST_HEAD(&buf->rb_all);
- i = (buf->rb_max_requests + 1) * RPCRDMA_MAX_SEGS;
- dprintk("RPC: %s: initializing %d FMRs\n", __func__, i);
+ i = max_t(int, RPCRDMA_MAX_DATA_SEGS / RPCRDMA_MAX_FMR_SGES, 1);
+ i += 2; /* head + tail */
+ i *= buf->rb_max_requests; /* one set for each RPC slot */
+ dprintk("RPC: %s: initalizing %d FMRs\n", __func__, i);
+ rc = -ENOMEM;
while (i--) {
r = kzalloc(sizeof(*r), GFP_KERNEL);
if (!r)
- return -ENOMEM;
+ goto out;
- r->r.fmr = ib_alloc_fmr(pd, mr_access_flags, &fmr_attr);
- if (IS_ERR(r->r.fmr))
+ r->r.fmr.physaddrs = kmalloc(RPCRDMA_MAX_FMR_SGES *
+ sizeof(u64), GFP_KERNEL);
+ if (!r->r.fmr.physaddrs)
+ goto out_free;
+
+ r->r.fmr.fmr = ib_alloc_fmr(pd, mr_access_flags, &fmr_attr);
+ if (IS_ERR(r->r.fmr.fmr))
goto out_fmr_err;
list_add(&r->mw_list, &buf->rb_mws);
@@ -71,12 +95,24 @@
return 0;
out_fmr_err:
- rc = PTR_ERR(r->r.fmr);
+ rc = PTR_ERR(r->r.fmr.fmr);
dprintk("RPC: %s: ib_alloc_fmr status %i\n", __func__, rc);
+ kfree(r->r.fmr.physaddrs);
+out_free:
kfree(r);
+out:
return rc;
}
+static int
+__fmr_unmap(struct rpcrdma_mw *r)
+{
+ LIST_HEAD(l);
+
+ list_add(&r->r.fmr.fmr->list, &l);
+ return ib_unmap_fmr(&l);
+}
+
/* Use the ib_map_phys_fmr() verb to register a memory region
* for remote access via RDMA READ or RDMA WRITE.
*/
@@ -85,12 +121,24 @@
int nsegs, bool writing)
{
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
- struct ib_device *device = ia->ri_id->device;
+ struct ib_device *device = ia->ri_device;
enum dma_data_direction direction = rpcrdma_data_dir(writing);
struct rpcrdma_mr_seg *seg1 = seg;
- struct rpcrdma_mw *mw = seg1->rl_mw;
- u64 physaddrs[RPCRDMA_MAX_DATA_SEGS];
int len, pageoff, i, rc;
+ struct rpcrdma_mw *mw;
+
+ mw = seg1->rl_mw;
+ seg1->rl_mw = NULL;
+ if (!mw) {
+ mw = rpcrdma_get_mw(r_xprt);
+ if (!mw)
+ return -ENOMEM;
+ } else {
+ /* this is a retransmit; generate a fresh rkey */
+ rc = __fmr_unmap(mw);
+ if (rc)
+ return rc;
+ }
pageoff = offset_in_page(seg1->mr_offset);
seg1->mr_offset -= pageoff; /* start of page */
@@ -100,7 +148,7 @@
nsegs = RPCRDMA_MAX_FMR_SGES;
for (i = 0; i < nsegs;) {
rpcrdma_map_one(device, seg, direction);
- physaddrs[i] = seg->mr_dma;
+ mw->r.fmr.physaddrs[i] = seg->mr_dma;
len += seg->mr_len;
++seg;
++i;
@@ -110,11 +158,13 @@
break;
}
- rc = ib_map_phys_fmr(mw->r.fmr, physaddrs, i, seg1->mr_dma);
+ rc = ib_map_phys_fmr(mw->r.fmr.fmr, mw->r.fmr.physaddrs,
+ i, seg1->mr_dma);
if (rc)
goto out_maperr;
- seg1->mr_rkey = mw->r.fmr->rkey;
+ seg1->rl_mw = mw;
+ seg1->mr_rkey = mw->r.fmr.fmr->rkey;
seg1->mr_base = seg1->mr_dma + pageoff;
seg1->mr_nsegs = i;
seg1->mr_len = len;
@@ -137,48 +187,28 @@
{
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
struct rpcrdma_mr_seg *seg1 = seg;
- struct ib_device *device;
+ struct rpcrdma_mw *mw = seg1->rl_mw;
int rc, nsegs = seg->mr_nsegs;
- LIST_HEAD(l);
- list_add(&seg1->rl_mw->r.fmr->list, &l);
- rc = ib_unmap_fmr(&l);
- read_lock(&ia->ri_qplock);
- device = ia->ri_id->device;
+ dprintk("RPC: %s: FMR %p\n", __func__, mw);
+
+ seg1->rl_mw = NULL;
while (seg1->mr_nsegs--)
- rpcrdma_unmap_one(device, seg++);
- read_unlock(&ia->ri_qplock);
+ rpcrdma_unmap_one(ia->ri_device, seg++);
+ rc = __fmr_unmap(mw);
if (rc)
goto out_err;
+ rpcrdma_put_mw(r_xprt, mw);
return nsegs;
out_err:
+ /* The FMR is abandoned, but remains in rb_all. fmr_op_destroy
+ * will attempt to release it when the transport is destroyed.
+ */
dprintk("RPC: %s: ib_unmap_fmr status %i\n", __func__, rc);
return nsegs;
}
-/* After a disconnect, unmap all FMRs.
- *
- * This is invoked only in the transport connect worker in order
- * to serialize with rpcrdma_register_fmr_external().
- */
-static void
-fmr_op_reset(struct rpcrdma_xprt *r_xprt)
-{
- struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
- struct rpcrdma_mw *r;
- LIST_HEAD(list);
- int rc;
-
- list_for_each_entry(r, &buf->rb_all, mw_all)
- list_add(&r->r.fmr->list, &list);
-
- rc = ib_unmap_fmr(&list);
- if (rc)
- dprintk("RPC: %s: ib_unmap_fmr failed %i\n",
- __func__, rc);
-}
-
static void
fmr_op_destroy(struct rpcrdma_buffer *buf)
{
@@ -188,10 +218,13 @@
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
- rc = ib_dealloc_fmr(r->r.fmr);
+ kfree(r->r.fmr.physaddrs);
+
+ rc = ib_dealloc_fmr(r->r.fmr.fmr);
if (rc)
dprintk("RPC: %s: ib_dealloc_fmr failed %i\n",
__func__, rc);
+
kfree(r);
}
}
@@ -202,7 +235,6 @@
.ro_open = fmr_op_open,
.ro_maxpages = fmr_op_maxpages,
.ro_init = fmr_op_init,
- .ro_reset = fmr_op_reset,
.ro_destroy = fmr_op_destroy,
.ro_displayname = "fmr",
};
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index d234521..04ea914 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -11,12 +11,136 @@
* but most complex memory registration mode.
*/
+/* Normal operation
+ *
+ * A Memory Region is prepared for RDMA READ or WRITE using a FAST_REG
+ * Work Request (frmr_op_map). When the RDMA operation is finished, this
+ * Memory Region is invalidated using a LOCAL_INV Work Request
+ * (frmr_op_unmap).
+ *
+ * Typically these Work Requests are not signaled, and neither are RDMA
+ * SEND Work Requests (with the exception of signaling occasionally to
+ * prevent provider work queue overflows). This greatly reduces HCA
+ * interrupt workload.
+ *
+ * As an optimization, frwr_op_unmap marks MRs INVALID before the
+ * LOCAL_INV WR is posted. If posting succeeds, the MR is placed on
+ * rb_mws immediately so that no work (like managing a linked list
+ * under a spinlock) is needed in the completion upcall.
+ *
+ * But this means that frwr_op_map() can occasionally encounter an MR
+ * that is INVALID but the LOCAL_INV WR has not completed. Work Queue
+ * ordering prevents a subsequent FAST_REG WR from executing against
+ * that MR while it is still being invalidated.
+ */
+
+/* Transport recovery
+ *
+ * ->op_map and the transport connect worker cannot run at the same
+ * time, but ->op_unmap can fire while the transport connect worker
+ * is running. Thus MR recovery is handled in ->op_map, to guarantee
+ * that recovered MRs are owned by a sending RPC, and not one where
+ * ->op_unmap could fire at the same time transport reconnect is
+ * being done.
+ *
+ * When the underlying transport disconnects, MRs are left in one of
+ * three states:
+ *
+ * INVALID: The MR was not in use before the QP entered ERROR state.
+ * (Or, the LOCAL_INV WR has not completed or flushed yet).
+ *
+ * STALE: The MR was being registered or unregistered when the QP
+ * entered ERROR state, and the pending WR was flushed.
+ *
+ * VALID: The MR was registered before the QP entered ERROR state.
+ *
+ * When frwr_op_map encounters STALE and VALID MRs, they are recovered
+ * with ib_dereg_mr and then are re-initialized. Beause MR recovery
+ * allocates fresh resources, it is deferred to a workqueue, and the
+ * recovered MRs are placed back on the rb_mws list when recovery is
+ * complete. frwr_op_map allocates another MR for the current RPC while
+ * the broken MR is reset.
+ *
+ * To ensure that frwr_op_map doesn't encounter an MR that is marked
+ * INVALID but that is about to be flushed due to a previous transport
+ * disconnect, the transport connect worker attempts to drain all
+ * pending send queue WRs before the transport is reconnected.
+ */
+
#include "xprt_rdma.h"
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define RPCDBG_FACILITY RPCDBG_TRANS
#endif
+static struct workqueue_struct *frwr_recovery_wq;
+
+#define FRWR_RECOVERY_WQ_FLAGS (WQ_UNBOUND | WQ_MEM_RECLAIM)
+
+int
+frwr_alloc_recovery_wq(void)
+{
+ frwr_recovery_wq = alloc_workqueue("frwr_recovery",
+ FRWR_RECOVERY_WQ_FLAGS, 0);
+ return !frwr_recovery_wq ? -ENOMEM : 0;
+}
+
+void
+frwr_destroy_recovery_wq(void)
+{
+ struct workqueue_struct *wq;
+
+ if (!frwr_recovery_wq)
+ return;
+
+ wq = frwr_recovery_wq;
+ frwr_recovery_wq = NULL;
+ destroy_workqueue(wq);
+}
+
+/* Deferred reset of a single FRMR. Generate a fresh rkey by
+ * replacing the MR.
+ *
+ * There's no recovery if this fails. The FRMR is abandoned, but
+ * remains in rb_all. It will be cleaned up when the transport is
+ * destroyed.
+ */
+static void
+__frwr_recovery_worker(struct work_struct *work)
+{
+ struct rpcrdma_mw *r = container_of(work, struct rpcrdma_mw,
+ r.frmr.fr_work);
+ struct rpcrdma_xprt *r_xprt = r->r.frmr.fr_xprt;
+ unsigned int depth = r_xprt->rx_ia.ri_max_frmr_depth;
+ struct ib_pd *pd = r_xprt->rx_ia.ri_pd;
+
+ if (ib_dereg_mr(r->r.frmr.fr_mr))
+ goto out_fail;
+
+ r->r.frmr.fr_mr = ib_alloc_fast_reg_mr(pd, depth);
+ if (IS_ERR(r->r.frmr.fr_mr))
+ goto out_fail;
+
+ dprintk("RPC: %s: recovered FRMR %p\n", __func__, r);
+ r->r.frmr.fr_state = FRMR_IS_INVALID;
+ rpcrdma_put_mw(r_xprt, r);
+ return;
+
+out_fail:
+ pr_warn("RPC: %s: FRMR %p unrecovered\n",
+ __func__, r);
+}
+
+/* A broken MR was discovered in a context that can't sleep.
+ * Defer recovery to the recovery worker.
+ */
+static void
+__frwr_queue_recovery(struct rpcrdma_mw *r)
+{
+ INIT_WORK(&r->r.frmr.fr_work, __frwr_recovery_worker);
+ queue_work(frwr_recovery_wq, &r->r.frmr.fr_work);
+}
+
static int
__frwr_init(struct rpcrdma_mw *r, struct ib_pd *pd, struct ib_device *device,
unsigned int depth)
@@ -128,7 +252,7 @@
/* WARNING: Only wr_id and status are reliable at this point */
r = (struct rpcrdma_mw *)(unsigned long)wc->wr_id;
- dprintk("RPC: %s: frmr %p (stale), status %s (%d)\n",
+ pr_warn("RPC: %s: frmr %p flushed, status %s (%d)\n",
__func__, r, ib_wc_status_msg(wc->status), wc->status);
r->r.frmr.fr_state = FRMR_IS_STALE;
}
@@ -137,16 +261,19 @@
frwr_op_init(struct rpcrdma_xprt *r_xprt)
{
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
- struct ib_device *device = r_xprt->rx_ia.ri_id->device;
+ struct ib_device *device = r_xprt->rx_ia.ri_device;
unsigned int depth = r_xprt->rx_ia.ri_max_frmr_depth;
struct ib_pd *pd = r_xprt->rx_ia.ri_pd;
int i;
+ spin_lock_init(&buf->rb_mwlock);
INIT_LIST_HEAD(&buf->rb_mws);
INIT_LIST_HEAD(&buf->rb_all);
- i = (buf->rb_max_requests + 1) * RPCRDMA_MAX_SEGS;
- dprintk("RPC: %s: initializing %d FRMRs\n", __func__, i);
+ i = max_t(int, RPCRDMA_MAX_DATA_SEGS / depth, 1);
+ i += 2; /* head + tail */
+ i *= buf->rb_max_requests; /* one set for each RPC slot */
+ dprintk("RPC: %s: initalizing %d FRMRs\n", __func__, i);
while (i--) {
struct rpcrdma_mw *r;
@@ -165,6 +292,7 @@
list_add(&r->mw_list, &buf->rb_mws);
list_add(&r->mw_all, &buf->rb_all);
r->mw_sendcompletion = frwr_sendcompletion;
+ r->r.frmr.fr_xprt = r_xprt;
}
return 0;
@@ -178,12 +306,12 @@
int nsegs, bool writing)
{
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
- struct ib_device *device = ia->ri_id->device;
+ struct ib_device *device = ia->ri_device;
enum dma_data_direction direction = rpcrdma_data_dir(writing);
struct rpcrdma_mr_seg *seg1 = seg;
- struct rpcrdma_mw *mw = seg1->rl_mw;
- struct rpcrdma_frmr *frmr = &mw->r.frmr;
- struct ib_mr *mr = frmr->fr_mr;
+ struct rpcrdma_mw *mw;
+ struct rpcrdma_frmr *frmr;
+ struct ib_mr *mr;
struct ib_send_wr fastreg_wr, *bad_wr;
u8 key;
int len, pageoff;
@@ -192,12 +320,25 @@
u64 pa;
int page_no;
+ mw = seg1->rl_mw;
+ seg1->rl_mw = NULL;
+ do {
+ if (mw)
+ __frwr_queue_recovery(mw);
+ mw = rpcrdma_get_mw(r_xprt);
+ if (!mw)
+ return -ENOMEM;
+ } while (mw->r.frmr.fr_state != FRMR_IS_INVALID);
+ frmr = &mw->r.frmr;
+ frmr->fr_state = FRMR_IS_VALID;
+
pageoff = offset_in_page(seg1->mr_offset);
seg1->mr_offset -= pageoff; /* start of page */
seg1->mr_len += pageoff;
len = -pageoff;
if (nsegs > ia->ri_max_frmr_depth)
nsegs = ia->ri_max_frmr_depth;
+
for (page_no = i = 0; i < nsegs;) {
rpcrdma_map_one(device, seg, direction);
pa = seg->mr_dma;
@@ -216,8 +357,6 @@
dprintk("RPC: %s: Using frmr %p to map %d segments (%d bytes)\n",
__func__, mw, i, len);
- frmr->fr_state = FRMR_IS_VALID;
-
memset(&fastreg_wr, 0, sizeof(fastreg_wr));
fastreg_wr.wr_id = (unsigned long)(void *)mw;
fastreg_wr.opcode = IB_WR_FAST_REG_MR;
@@ -229,6 +368,7 @@
fastreg_wr.wr.fast_reg.access_flags = writing ?
IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
IB_ACCESS_REMOTE_READ;
+ mr = frmr->fr_mr;
key = (u8)(mr->rkey & 0x000000FF);
ib_update_fast_reg_key(mr, ++key);
fastreg_wr.wr.fast_reg.rkey = mr->rkey;
@@ -238,6 +378,7 @@
if (rc)
goto out_senderr;
+ seg1->rl_mw = mw;
seg1->mr_rkey = mr->rkey;
seg1->mr_base = seg1->mr_dma + pageoff;
seg1->mr_nsegs = i;
@@ -246,10 +387,9 @@
out_senderr:
dprintk("RPC: %s: ib_post_send status %i\n", __func__, rc);
- ib_update_fast_reg_key(mr, --key);
- frmr->fr_state = FRMR_IS_INVALID;
while (i--)
rpcrdma_unmap_one(device, --seg);
+ __frwr_queue_recovery(mw);
return rc;
}
@@ -261,78 +401,46 @@
{
struct rpcrdma_mr_seg *seg1 = seg;
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
+ struct rpcrdma_mw *mw = seg1->rl_mw;
struct ib_send_wr invalidate_wr, *bad_wr;
int rc, nsegs = seg->mr_nsegs;
- struct ib_device *device;
- seg1->rl_mw->r.frmr.fr_state = FRMR_IS_INVALID;
+ dprintk("RPC: %s: FRMR %p\n", __func__, mw);
+
+ seg1->rl_mw = NULL;
+ mw->r.frmr.fr_state = FRMR_IS_INVALID;
memset(&invalidate_wr, 0, sizeof(invalidate_wr));
- invalidate_wr.wr_id = (unsigned long)(void *)seg1->rl_mw;
+ invalidate_wr.wr_id = (unsigned long)(void *)mw;
invalidate_wr.opcode = IB_WR_LOCAL_INV;
- invalidate_wr.ex.invalidate_rkey = seg1->rl_mw->r.frmr.fr_mr->rkey;
+ invalidate_wr.ex.invalidate_rkey = mw->r.frmr.fr_mr->rkey;
DECR_CQCOUNT(&r_xprt->rx_ep);
- read_lock(&ia->ri_qplock);
- device = ia->ri_id->device;
while (seg1->mr_nsegs--)
- rpcrdma_unmap_one(device, seg++);
+ rpcrdma_unmap_one(ia->ri_device, seg++);
+ read_lock(&ia->ri_qplock);
rc = ib_post_send(ia->ri_id->qp, &invalidate_wr, &bad_wr);
read_unlock(&ia->ri_qplock);
if (rc)
goto out_err;
+
+ rpcrdma_put_mw(r_xprt, mw);
return nsegs;
out_err:
- /* Force rpcrdma_buffer_get() to retry */
- seg1->rl_mw->r.frmr.fr_state = FRMR_IS_STALE;
dprintk("RPC: %s: ib_post_send status %i\n", __func__, rc);
+ __frwr_queue_recovery(mw);
return nsegs;
}
-/* After a disconnect, a flushed FAST_REG_MR can leave an FRMR in
- * an unusable state. Find FRMRs in this state and dereg / reg
- * each. FRMRs that are VALID and attached to an rpcrdma_req are
- * also torn down.
- *
- * This gives all in-use FRMRs a fresh rkey and leaves them INVALID.
- *
- * This is invoked only in the transport connect worker in order
- * to serialize with rpcrdma_register_frmr_external().
- */
-static void
-frwr_op_reset(struct rpcrdma_xprt *r_xprt)
-{
- struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
- struct ib_device *device = r_xprt->rx_ia.ri_id->device;
- unsigned int depth = r_xprt->rx_ia.ri_max_frmr_depth;
- struct ib_pd *pd = r_xprt->rx_ia.ri_pd;
- struct rpcrdma_mw *r;
- int rc;
-
- list_for_each_entry(r, &buf->rb_all, mw_all) {
- if (r->r.frmr.fr_state == FRMR_IS_INVALID)
- continue;
-
- __frwr_release(r);
- rc = __frwr_init(r, pd, device, depth);
- if (rc) {
- dprintk("RPC: %s: mw %p left %s\n",
- __func__, r,
- (r->r.frmr.fr_state == FRMR_IS_STALE ?
- "stale" : "valid"));
- continue;
- }
-
- r->r.frmr.fr_state = FRMR_IS_INVALID;
- }
-}
-
static void
frwr_op_destroy(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
+ /* Ensure stale MWs for "buf" are no longer in flight */
+ flush_workqueue(frwr_recovery_wq);
+
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
@@ -347,7 +455,6 @@
.ro_open = frwr_op_open,
.ro_maxpages = frwr_op_maxpages,
.ro_init = frwr_op_init,
- .ro_reset = frwr_op_reset,
.ro_destroy = frwr_op_destroy,
.ro_displayname = "frwr",
};
diff --git a/net/sunrpc/xprtrdma/physical_ops.c b/net/sunrpc/xprtrdma/physical_ops.c
index ba518af..41985d0 100644
--- a/net/sunrpc/xprtrdma/physical_ops.c
+++ b/net/sunrpc/xprtrdma/physical_ops.c
@@ -50,8 +50,7 @@
{
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
- rpcrdma_map_one(ia->ri_id->device, seg,
- rpcrdma_data_dir(writing));
+ rpcrdma_map_one(ia->ri_device, seg, rpcrdma_data_dir(writing));
seg->mr_rkey = ia->ri_bind_mem->rkey;
seg->mr_base = seg->mr_dma;
seg->mr_nsegs = 1;
@@ -65,19 +64,11 @@
{
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
- read_lock(&ia->ri_qplock);
- rpcrdma_unmap_one(ia->ri_id->device, seg);
- read_unlock(&ia->ri_qplock);
-
+ rpcrdma_unmap_one(ia->ri_device, seg);
return 1;
}
static void
-physical_op_reset(struct rpcrdma_xprt *r_xprt)
-{
-}
-
-static void
physical_op_destroy(struct rpcrdma_buffer *buf)
{
}
@@ -88,7 +79,6 @@
.ro_open = physical_op_open,
.ro_maxpages = physical_op_maxpages,
.ro_init = physical_op_init,
- .ro_reset = physical_op_reset,
.ro_destroy = physical_op_destroy,
.ro_displayname = "physical",
};
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 2c53ea9..84ea37d 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -284,9 +284,6 @@
return (unsigned char *)iptr - (unsigned char *)headerp;
out:
- if (r_xprt->rx_ia.ri_memreg_strategy == RPCRDMA_FRMR)
- return n;
-
for (pos = 0; nchunks--;)
pos += r_xprt->rx_ia.ri_ops->ro_unmap(r_xprt,
&req->rl_segments[pos]);
@@ -732,8 +729,8 @@
struct rpcrdma_msg *headerp;
struct rpcrdma_req *req;
struct rpc_rqst *rqst;
- struct rpc_xprt *xprt = rep->rr_xprt;
- struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(xprt);
+ struct rpcrdma_xprt *r_xprt = rep->rr_rxprt;
+ struct rpc_xprt *xprt = &r_xprt->rx_xprt;
__be32 *iptr;
int rdmalen, status;
unsigned long cwnd;
@@ -770,7 +767,6 @@
rep->rr_len);
repost:
r_xprt->rx_stats.bad_reply_count++;
- rep->rr_func = rpcrdma_reply_handler;
if (rpcrdma_ep_post_recv(&r_xprt->rx_ia, &r_xprt->rx_ep, rep))
rpcrdma_recv_buffer_put(rep);
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 436da2c..680f888 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -240,6 +240,16 @@
xprt_clear_connecting(xprt);
}
+static void
+xprt_rdma_inject_disconnect(struct rpc_xprt *xprt)
+{
+ struct rpcrdma_xprt *r_xprt = container_of(xprt, struct rpcrdma_xprt,
+ rx_xprt);
+
+ pr_info("rpcrdma: injecting transport disconnect on xprt=%p\n", xprt);
+ rdma_disconnect(r_xprt->rx_ia.ri_id);
+}
+
/*
* xprt_rdma_destroy
*
@@ -612,12 +622,6 @@
if (req->rl_reply == NULL) /* e.g. reconnection */
rpcrdma_recv_buffer_get(req);
- if (req->rl_reply) {
- req->rl_reply->rr_func = rpcrdma_reply_handler;
- /* this need only be done once, but... */
- req->rl_reply->rr_xprt = xprt;
- }
-
/* Must suppress retransmit to maintain credits */
if (req->rl_connect_cookie == xprt->connect_cookie)
goto drop_connection;
@@ -676,6 +680,17 @@
r_xprt->rx_stats.bad_reply_count);
}
+static int
+xprt_rdma_enable_swap(struct rpc_xprt *xprt)
+{
+ return -EINVAL;
+}
+
+static void
+xprt_rdma_disable_swap(struct rpc_xprt *xprt)
+{
+}
+
/*
* Plumbing for rpc transport switch and kernel module
*/
@@ -694,7 +709,10 @@
.send_request = xprt_rdma_send_request,
.close = xprt_rdma_close,
.destroy = xprt_rdma_destroy,
- .print_stats = xprt_rdma_print_stats
+ .print_stats = xprt_rdma_print_stats,
+ .enable_swap = xprt_rdma_enable_swap,
+ .disable_swap = xprt_rdma_disable_swap,
+ .inject_disconnect = xprt_rdma_inject_disconnect
};
static struct xprt_class xprt_rdma = {
@@ -720,17 +738,24 @@
if (rc)
dprintk("RPC: %s: xprt_unregister returned %i\n",
__func__, rc);
+
+ frwr_destroy_recovery_wq();
}
int xprt_rdma_init(void)
{
int rc;
- rc = xprt_register_transport(&xprt_rdma);
-
+ rc = frwr_alloc_recovery_wq();
if (rc)
return rc;
+ rc = xprt_register_transport(&xprt_rdma);
+ if (rc) {
+ frwr_destroy_recovery_wq();
+ return rc;
+ }
+
dprintk("RPCRDMA Module Init, register RPC RDMA transport\n");
dprintk("Defaults:\n");
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 52df265..891c4ed 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -80,7 +80,6 @@
rpcrdma_run_tasklet(unsigned long data)
{
struct rpcrdma_rep *rep;
- void (*func)(struct rpcrdma_rep *);
unsigned long flags;
data = data;
@@ -89,14 +88,9 @@
rep = list_entry(rpcrdma_tasklets_g.next,
struct rpcrdma_rep, rr_list);
list_del(&rep->rr_list);
- func = rep->rr_func;
- rep->rr_func = NULL;
spin_unlock_irqrestore(&rpcrdma_tk_lock_g, flags);
- if (func)
- func(rep);
- else
- rpcrdma_recv_buffer_put(rep);
+ rpcrdma_reply_handler(rep);
spin_lock_irqsave(&rpcrdma_tk_lock_g, flags);
}
@@ -236,7 +230,7 @@
__func__, rep, wc->byte_len);
rep->rr_len = wc->byte_len;
- ib_dma_sync_single_for_cpu(rdmab_to_ia(rep->rr_buffer)->ri_id->device,
+ ib_dma_sync_single_for_cpu(rep->rr_device,
rdmab_addr(rep->rr_rdmabuf),
rep->rr_len, DMA_FROM_DEVICE);
prefetch(rdmab_to_msg(rep->rr_rdmabuf));
@@ -407,7 +401,7 @@
pr_info("rpcrdma: connection to %pIS:%u on %s, memreg '%s', %d credits, %d responders%s\n",
sap, rpc_get_port(sap),
- ia->ri_id->device->name,
+ ia->ri_device->name,
ia->ri_ops->ro_displayname,
xprt->rx_buf.rb_max_requests,
ird, ird < 4 && ird < tird / 2 ? " (low!)" : "");
@@ -508,8 +502,9 @@
rc = PTR_ERR(ia->ri_id);
goto out1;
}
+ ia->ri_device = ia->ri_id->device;
- ia->ri_pd = ib_alloc_pd(ia->ri_id->device);
+ ia->ri_pd = ib_alloc_pd(ia->ri_device);
if (IS_ERR(ia->ri_pd)) {
rc = PTR_ERR(ia->ri_pd);
dprintk("RPC: %s: ib_alloc_pd() failed %i\n",
@@ -517,7 +512,7 @@
goto out2;
}
- rc = ib_query_device(ia->ri_id->device, devattr);
+ rc = ib_query_device(ia->ri_device, devattr);
if (rc) {
dprintk("RPC: %s: ib_query_device failed %d\n",
__func__, rc);
@@ -526,7 +521,7 @@
if (devattr->device_cap_flags & IB_DEVICE_LOCAL_DMA_LKEY) {
ia->ri_have_dma_lkey = 1;
- ia->ri_dma_lkey = ia->ri_id->device->local_dma_lkey;
+ ia->ri_dma_lkey = ia->ri_device->local_dma_lkey;
}
if (memreg == RPCRDMA_FRMR) {
@@ -541,7 +536,7 @@
}
}
if (memreg == RPCRDMA_MTHCAFMR) {
- if (!ia->ri_id->device->alloc_fmr) {
+ if (!ia->ri_device->alloc_fmr) {
dprintk("RPC: %s: MTHCAFMR registration "
"not supported by HCA\n", __func__);
memreg = RPCRDMA_ALLPHYSICAL;
@@ -590,9 +585,6 @@
dprintk("RPC: %s: memory registration strategy is '%s'\n",
__func__, ia->ri_ops->ro_displayname);
- /* Else will do memory reg/dereg for each chunk */
- ia->ri_memreg_strategy = memreg;
-
rwlock_init(&ia->ri_qplock);
return 0;
@@ -622,17 +614,17 @@
dprintk("RPC: %s: ib_dereg_mr returned %i\n",
__func__, rc);
}
+
if (ia->ri_id != NULL && !IS_ERR(ia->ri_id)) {
if (ia->ri_id->qp)
rdma_destroy_qp(ia->ri_id);
rdma_destroy_id(ia->ri_id);
ia->ri_id = NULL;
}
- if (ia->ri_pd != NULL && !IS_ERR(ia->ri_pd)) {
- rc = ib_dealloc_pd(ia->ri_pd);
- dprintk("RPC: %s: ib_dealloc_pd returned %i\n",
- __func__, rc);
- }
+
+ /* If the pd is still busy, xprtrdma missed freeing a resource */
+ if (ia->ri_pd && !IS_ERR(ia->ri_pd))
+ WARN_ON(ib_dealloc_pd(ia->ri_pd));
}
/*
@@ -693,8 +685,8 @@
INIT_DELAYED_WORK(&ep->rep_connect_worker, rpcrdma_connect_worker);
cq_attr.cqe = ep->rep_attr.cap.max_send_wr + 1;
- sendcq = ib_create_cq(ia->ri_id->device, rpcrdma_sendcq_upcall,
- rpcrdma_cq_async_error_upcall, ep, &cq_attr);
+ sendcq = ib_create_cq(ia->ri_device, rpcrdma_sendcq_upcall,
+ rpcrdma_cq_async_error_upcall, ep, &cq_attr);
if (IS_ERR(sendcq)) {
rc = PTR_ERR(sendcq);
dprintk("RPC: %s: failed to create send CQ: %i\n",
@@ -710,8 +702,8 @@
}
cq_attr.cqe = ep->rep_attr.cap.max_recv_wr + 1;
- recvcq = ib_create_cq(ia->ri_id->device, rpcrdma_recvcq_upcall,
- rpcrdma_cq_async_error_upcall, ep, &cq_attr);
+ recvcq = ib_create_cq(ia->ri_device, rpcrdma_recvcq_upcall,
+ rpcrdma_cq_async_error_upcall, ep, &cq_attr);
if (IS_ERR(recvcq)) {
rc = PTR_ERR(recvcq);
dprintk("RPC: %s: failed to create recv CQ: %i\n",
@@ -817,8 +809,6 @@
rpcrdma_flush_cqs(ep);
xprt = container_of(ia, struct rpcrdma_xprt, rx_ia);
- ia->ri_ops->ro_reset(xprt);
-
id = rpcrdma_create_id(xprt, ia,
(struct sockaddr *)&xprt->rx_data.addr);
if (IS_ERR(id)) {
@@ -832,7 +822,7 @@
* More stuff I haven't thought of!
* Rrrgh!
*/
- if (ia->ri_id->device != id->device) {
+ if (ia->ri_device != id->device) {
printk("RPC: %s: can't reconnect on "
"different device!\n", __func__);
rdma_destroy_id(id);
@@ -974,7 +964,8 @@
goto out_free;
}
- rep->rr_buffer = &r_xprt->rx_buf;
+ rep->rr_device = ia->ri_device;
+ rep->rr_rxprt = r_xprt;
return rep;
out_free:
@@ -1098,31 +1089,33 @@
kfree(buf->rb_pool);
}
-/* "*mw" can be NULL when rpcrdma_buffer_get_mrs() fails, leaving
- * some req segments uninitialized.
- */
-static void
-rpcrdma_buffer_put_mr(struct rpcrdma_mw **mw, struct rpcrdma_buffer *buf)
+struct rpcrdma_mw *
+rpcrdma_get_mw(struct rpcrdma_xprt *r_xprt)
{
- if (*mw) {
- list_add_tail(&(*mw)->mw_list, &buf->rb_mws);
- *mw = NULL;
+ struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
+ struct rpcrdma_mw *mw = NULL;
+
+ spin_lock(&buf->rb_mwlock);
+ if (!list_empty(&buf->rb_mws)) {
+ mw = list_first_entry(&buf->rb_mws,
+ struct rpcrdma_mw, mw_list);
+ list_del_init(&mw->mw_list);
}
+ spin_unlock(&buf->rb_mwlock);
+
+ if (!mw)
+ pr_err("RPC: %s: no MWs available\n", __func__);
+ return mw;
}
-/* Cycle mw's back in reverse order, and "spin" them.
- * This delays and scrambles reuse as much as possible.
- */
-static void
-rpcrdma_buffer_put_mrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf)
+void
+rpcrdma_put_mw(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mw *mw)
{
- struct rpcrdma_mr_seg *seg = req->rl_segments;
- struct rpcrdma_mr_seg *seg1 = seg;
- int i;
+ struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
- for (i = 1, seg++; i < RPCRDMA_MAX_SEGS; seg++, i++)
- rpcrdma_buffer_put_mr(&seg->rl_mw, buf);
- rpcrdma_buffer_put_mr(&seg1->rl_mw, buf);
+ spin_lock(&buf->rb_mwlock);
+ list_add_tail(&mw->mw_list, &buf->rb_mws);
+ spin_unlock(&buf->rb_mwlock);
}
static void
@@ -1132,115 +1125,10 @@
req->rl_niovs = 0;
if (req->rl_reply) {
buf->rb_recv_bufs[--buf->rb_recv_index] = req->rl_reply;
- req->rl_reply->rr_func = NULL;
req->rl_reply = NULL;
}
}
-/* rpcrdma_unmap_one() was already done during deregistration.
- * Redo only the ib_post_send().
- */
-static void
-rpcrdma_retry_local_inv(struct rpcrdma_mw *r, struct rpcrdma_ia *ia)
-{
- struct rpcrdma_xprt *r_xprt =
- container_of(ia, struct rpcrdma_xprt, rx_ia);
- struct ib_send_wr invalidate_wr, *bad_wr;
- int rc;
-
- dprintk("RPC: %s: FRMR %p is stale\n", __func__, r);
-
- /* When this FRMR is re-inserted into rb_mws, it is no longer stale */
- r->r.frmr.fr_state = FRMR_IS_INVALID;
-
- memset(&invalidate_wr, 0, sizeof(invalidate_wr));
- invalidate_wr.wr_id = (unsigned long)(void *)r;
- invalidate_wr.opcode = IB_WR_LOCAL_INV;
- invalidate_wr.ex.invalidate_rkey = r->r.frmr.fr_mr->rkey;
- DECR_CQCOUNT(&r_xprt->rx_ep);
-
- dprintk("RPC: %s: frmr %p invalidating rkey %08x\n",
- __func__, r, r->r.frmr.fr_mr->rkey);
-
- read_lock(&ia->ri_qplock);
- rc = ib_post_send(ia->ri_id->qp, &invalidate_wr, &bad_wr);
- read_unlock(&ia->ri_qplock);
- if (rc) {
- /* Force rpcrdma_buffer_get() to retry */
- r->r.frmr.fr_state = FRMR_IS_STALE;
- dprintk("RPC: %s: ib_post_send failed, %i\n",
- __func__, rc);
- }
-}
-
-static void
-rpcrdma_retry_flushed_linv(struct list_head *stale,
- struct rpcrdma_buffer *buf)
-{
- struct rpcrdma_ia *ia = rdmab_to_ia(buf);
- struct list_head *pos;
- struct rpcrdma_mw *r;
- unsigned long flags;
-
- list_for_each(pos, stale) {
- r = list_entry(pos, struct rpcrdma_mw, mw_list);
- rpcrdma_retry_local_inv(r, ia);
- }
-
- spin_lock_irqsave(&buf->rb_lock, flags);
- list_splice_tail(stale, &buf->rb_mws);
- spin_unlock_irqrestore(&buf->rb_lock, flags);
-}
-
-static struct rpcrdma_req *
-rpcrdma_buffer_get_frmrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf,
- struct list_head *stale)
-{
- struct rpcrdma_mw *r;
- int i;
-
- i = RPCRDMA_MAX_SEGS - 1;
- while (!list_empty(&buf->rb_mws)) {
- r = list_entry(buf->rb_mws.next,
- struct rpcrdma_mw, mw_list);
- list_del(&r->mw_list);
- if (r->r.frmr.fr_state == FRMR_IS_STALE) {
- list_add(&r->mw_list, stale);
- continue;
- }
- req->rl_segments[i].rl_mw = r;
- if (unlikely(i-- == 0))
- return req; /* Success */
- }
-
- /* Not enough entries on rb_mws for this req */
- rpcrdma_buffer_put_sendbuf(req, buf);
- rpcrdma_buffer_put_mrs(req, buf);
- return NULL;
-}
-
-static struct rpcrdma_req *
-rpcrdma_buffer_get_fmrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf)
-{
- struct rpcrdma_mw *r;
- int i;
-
- i = RPCRDMA_MAX_SEGS - 1;
- while (!list_empty(&buf->rb_mws)) {
- r = list_entry(buf->rb_mws.next,
- struct rpcrdma_mw, mw_list);
- list_del(&r->mw_list);
- req->rl_segments[i].rl_mw = r;
- if (unlikely(i-- == 0))
- return req; /* Success */
- }
-
- /* Not enough entries on rb_mws for this req */
- rpcrdma_buffer_put_sendbuf(req, buf);
- rpcrdma_buffer_put_mrs(req, buf);
- return NULL;
-}
-
/*
* Get a set of request/reply buffers.
*
@@ -1253,12 +1141,11 @@
struct rpcrdma_req *
rpcrdma_buffer_get(struct rpcrdma_buffer *buffers)
{
- struct rpcrdma_ia *ia = rdmab_to_ia(buffers);
- struct list_head stale;
struct rpcrdma_req *req;
unsigned long flags;
spin_lock_irqsave(&buffers->rb_lock, flags);
+
if (buffers->rb_send_index == buffers->rb_max_requests) {
spin_unlock_irqrestore(&buffers->rb_lock, flags);
dprintk("RPC: %s: out of request buffers\n", __func__);
@@ -1277,20 +1164,7 @@
}
buffers->rb_send_bufs[buffers->rb_send_index++] = NULL;
- INIT_LIST_HEAD(&stale);
- switch (ia->ri_memreg_strategy) {
- case RPCRDMA_FRMR:
- req = rpcrdma_buffer_get_frmrs(req, buffers, &stale);
- break;
- case RPCRDMA_MTHCAFMR:
- req = rpcrdma_buffer_get_fmrs(req, buffers);
- break;
- default:
- break;
- }
spin_unlock_irqrestore(&buffers->rb_lock, flags);
- if (!list_empty(&stale))
- rpcrdma_retry_flushed_linv(&stale, buffers);
return req;
}
@@ -1302,19 +1176,10 @@
rpcrdma_buffer_put(struct rpcrdma_req *req)
{
struct rpcrdma_buffer *buffers = req->rl_buffer;
- struct rpcrdma_ia *ia = rdmab_to_ia(buffers);
unsigned long flags;
spin_lock_irqsave(&buffers->rb_lock, flags);
rpcrdma_buffer_put_sendbuf(req, buffers);
- switch (ia->ri_memreg_strategy) {
- case RPCRDMA_FRMR:
- case RPCRDMA_MTHCAFMR:
- rpcrdma_buffer_put_mrs(req, buffers);
- break;
- default:
- break;
- }
spin_unlock_irqrestore(&buffers->rb_lock, flags);
}
@@ -1344,10 +1209,9 @@
void
rpcrdma_recv_buffer_put(struct rpcrdma_rep *rep)
{
- struct rpcrdma_buffer *buffers = rep->rr_buffer;
+ struct rpcrdma_buffer *buffers = &rep->rr_rxprt->rx_buf;
unsigned long flags;
- rep->rr_func = NULL;
spin_lock_irqsave(&buffers->rb_lock, flags);
buffers->rb_recv_bufs[--buffers->rb_recv_index] = rep;
spin_unlock_irqrestore(&buffers->rb_lock, flags);
@@ -1376,9 +1240,9 @@
/*
* All memory passed here was kmalloc'ed, therefore phys-contiguous.
*/
- iov->addr = ib_dma_map_single(ia->ri_id->device,
+ iov->addr = ib_dma_map_single(ia->ri_device,
va, len, DMA_BIDIRECTIONAL);
- if (ib_dma_mapping_error(ia->ri_id->device, iov->addr))
+ if (ib_dma_mapping_error(ia->ri_device, iov->addr))
return -ENOMEM;
iov->length = len;
@@ -1422,8 +1286,8 @@
{
int rc;
- ib_dma_unmap_single(ia->ri_id->device,
- iov->addr, iov->length, DMA_BIDIRECTIONAL);
+ ib_dma_unmap_single(ia->ri_device,
+ iov->addr, iov->length, DMA_BIDIRECTIONAL);
if (NULL == mr)
return 0;
@@ -1516,15 +1380,18 @@
send_wr.num_sge = req->rl_niovs;
send_wr.opcode = IB_WR_SEND;
if (send_wr.num_sge == 4) /* no need to sync any pad (constant) */
- ib_dma_sync_single_for_device(ia->ri_id->device,
- req->rl_send_iov[3].addr, req->rl_send_iov[3].length,
- DMA_TO_DEVICE);
- ib_dma_sync_single_for_device(ia->ri_id->device,
- req->rl_send_iov[1].addr, req->rl_send_iov[1].length,
- DMA_TO_DEVICE);
- ib_dma_sync_single_for_device(ia->ri_id->device,
- req->rl_send_iov[0].addr, req->rl_send_iov[0].length,
- DMA_TO_DEVICE);
+ ib_dma_sync_single_for_device(ia->ri_device,
+ req->rl_send_iov[3].addr,
+ req->rl_send_iov[3].length,
+ DMA_TO_DEVICE);
+ ib_dma_sync_single_for_device(ia->ri_device,
+ req->rl_send_iov[1].addr,
+ req->rl_send_iov[1].length,
+ DMA_TO_DEVICE);
+ ib_dma_sync_single_for_device(ia->ri_device,
+ req->rl_send_iov[0].addr,
+ req->rl_send_iov[0].length,
+ DMA_TO_DEVICE);
if (DECR_CQCOUNT(ep) > 0)
send_wr.send_flags = 0;
@@ -1557,7 +1424,7 @@
recv_wr.sg_list = &rep->rr_rdmabuf->rg_iov;
recv_wr.num_sge = 1;
- ib_dma_sync_single_for_cpu(ia->ri_id->device,
+ ib_dma_sync_single_for_cpu(ia->ri_device,
rdmab_addr(rep->rr_rdmabuf),
rdmab_length(rep->rr_rdmabuf),
DMA_BIDIRECTIONAL);
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 58163b8..f49dd8b 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -62,6 +62,7 @@
struct rpcrdma_ia {
const struct rpcrdma_memreg_ops *ri_ops;
rwlock_t ri_qplock;
+ struct ib_device *ri_device;
struct rdma_cm_id *ri_id;
struct ib_pd *ri_pd;
struct ib_mr *ri_bind_mem;
@@ -69,7 +70,6 @@
int ri_have_dma_lkey;
struct completion ri_done;
int ri_async_rc;
- enum rpcrdma_memreg ri_memreg_strategy;
unsigned int ri_max_frmr_depth;
struct ib_device_attr ri_devattr;
struct ib_qp_attr ri_qp_attr;
@@ -173,9 +173,8 @@
struct rpcrdma_rep {
unsigned int rr_len;
- struct rpcrdma_buffer *rr_buffer;
- struct rpc_xprt *rr_xprt;
- void (*rr_func)(struct rpcrdma_rep *);
+ struct ib_device *rr_device;
+ struct rpcrdma_xprt *rr_rxprt;
struct list_head rr_list;
struct rpcrdma_regbuf *rr_rdmabuf;
};
@@ -203,11 +202,18 @@
struct ib_fast_reg_page_list *fr_pgl;
struct ib_mr *fr_mr;
enum rpcrdma_frmr_state fr_state;
+ struct work_struct fr_work;
+ struct rpcrdma_xprt *fr_xprt;
+};
+
+struct rpcrdma_fmr {
+ struct ib_fmr *fmr;
+ u64 *physaddrs;
};
struct rpcrdma_mw {
union {
- struct ib_fmr *fmr;
+ struct rpcrdma_fmr fmr;
struct rpcrdma_frmr frmr;
} r;
void (*mw_sendcompletion)(struct ib_wc *);
@@ -281,15 +287,17 @@
* One of these is associated with a transport instance
*/
struct rpcrdma_buffer {
- spinlock_t rb_lock; /* protects indexes */
- u32 rb_max_requests;/* client max requests */
- struct list_head rb_mws; /* optional memory windows/fmrs/frmrs */
- struct list_head rb_all;
- int rb_send_index;
+ spinlock_t rb_mwlock; /* protect rb_mws list */
+ struct list_head rb_mws;
+ struct list_head rb_all;
+ char *rb_pool;
+
+ spinlock_t rb_lock; /* protect buf arrays */
+ u32 rb_max_requests;
+ int rb_send_index;
+ int rb_recv_index;
struct rpcrdma_req **rb_send_bufs;
- int rb_recv_index;
struct rpcrdma_rep **rb_recv_bufs;
- char *rb_pool;
};
#define rdmab_to_ia(b) (&container_of((b), struct rpcrdma_xprt, rx_buf)->rx_ia)
@@ -350,7 +358,6 @@
struct rpcrdma_create_data_internal *);
size_t (*ro_maxpages)(struct rpcrdma_xprt *);
int (*ro_init)(struct rpcrdma_xprt *);
- void (*ro_reset)(struct rpcrdma_xprt *);
void (*ro_destroy)(struct rpcrdma_buffer *);
const char *ro_displayname;
};
@@ -413,6 +420,8 @@
int rpcrdma_buffer_create(struct rpcrdma_xprt *);
void rpcrdma_buffer_destroy(struct rpcrdma_buffer *);
+struct rpcrdma_mw *rpcrdma_get_mw(struct rpcrdma_xprt *);
+void rpcrdma_put_mw(struct rpcrdma_xprt *, struct rpcrdma_mw *);
struct rpcrdma_req *rpcrdma_buffer_get(struct rpcrdma_buffer *);
void rpcrdma_buffer_put(struct rpcrdma_req *);
void rpcrdma_recv_buffer_get(struct rpcrdma_req *);
@@ -425,6 +434,9 @@
unsigned int rpcrdma_max_segments(struct rpcrdma_xprt *);
+int frwr_alloc_recovery_wq(void);
+void frwr_destroy_recovery_wq(void);
+
/*
* Wrappers for chunk registration, shared by read/write chunk code.
*/
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index b051728..e193c2b 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -623,24 +623,6 @@
}
/**
- * xs_tcp_shutdown - gracefully shut down a TCP socket
- * @xprt: transport
- *
- * Initiates a graceful shutdown of the TCP socket by calling the
- * equivalent of shutdown(SHUT_RDWR);
- */
-static void xs_tcp_shutdown(struct rpc_xprt *xprt)
-{
- struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
- struct socket *sock = transport->sock;
-
- if (sock != NULL) {
- kernel_sock_shutdown(sock, SHUT_RDWR);
- trace_rpc_socket_shutdown(xprt, sock);
- }
-}
-
-/**
* xs_tcp_send_request - write an RPC request to a TCP socket
* @task: address of RPC task that manages the state of an RPC request
*
@@ -786,6 +768,7 @@
xs_sock_reset_connection_flags(xprt);
/* Mark transport as closed and wake up all pending tasks */
xprt_disconnect_done(xprt);
+ xprt_force_disconnect(xprt);
}
/**
@@ -827,6 +810,9 @@
if (sk == NULL)
return;
+ if (atomic_read(&transport->xprt.swapper))
+ sk_clear_memalloc(sk);
+
write_lock_bh(&sk->sk_callback_lock);
transport->inet = NULL;
transport->sock = NULL;
@@ -863,6 +849,13 @@
xprt_disconnect_done(xprt);
}
+static void xs_inject_disconnect(struct rpc_xprt *xprt)
+{
+ dprintk("RPC: injecting transport disconnect on xprt=%p\n",
+ xprt);
+ xprt_disconnect_done(xprt);
+}
+
static void xs_xprt_free(struct rpc_xprt *xprt)
{
xs_free_peer_addresses(xprt);
@@ -901,7 +894,6 @@
/**
* xs_local_data_ready - "data ready" callback for AF_LOCAL sockets
* @sk: socket with data to read
- * @len: how much data to read
*
* Currently this assumes we can read the whole reply in a single gulp.
*/
@@ -965,7 +957,6 @@
/**
* xs_udp_data_ready - "data ready" callback for UDP sockets
* @sk: socket with data to read
- * @len: how much data to read
*
*/
static void xs_udp_data_ready(struct sock *sk)
@@ -1389,7 +1380,6 @@
/**
* xs_tcp_data_ready - "data ready" callback for TCP sockets
* @sk: socket with data to read
- * @bytes: how much data to read
*
*/
static void xs_tcp_data_ready(struct sock *sk)
@@ -1886,9 +1876,7 @@
/**
* xs_local_setup_socket - create AF_LOCAL socket, connect to a local endpoint
- * @xprt: RPC transport to connect
* @transport: socket transport to connect
- * @create_sock: function to create a socket of the correct type
*/
static int xs_local_setup_socket(struct sock_xprt *transport)
{
@@ -1960,43 +1948,84 @@
msleep_interruptible(15000);
}
-#ifdef CONFIG_SUNRPC_SWAP
+#if IS_ENABLED(CONFIG_SUNRPC_SWAP)
+/*
+ * Note that this should be called with XPRT_LOCKED held (or when we otherwise
+ * know that we have exclusive access to the socket), to guard against
+ * races with xs_reset_transport.
+ */
static void xs_set_memalloc(struct rpc_xprt *xprt)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
xprt);
- if (xprt->swapper)
+ /*
+ * If there's no sock, then we have nothing to set. The
+ * reconnecting process will get it for us.
+ */
+ if (!transport->inet)
+ return;
+ if (atomic_read(&xprt->swapper))
sk_set_memalloc(transport->inet);
}
/**
- * xs_swapper - Tag this transport as being used for swap.
+ * xs_enable_swap - Tag this transport as being used for swap.
* @xprt: transport to tag
- * @enable: enable/disable
*
+ * Take a reference to this transport on behalf of the rpc_clnt, and
+ * optionally mark it for swapping if it wasn't already.
*/
-int xs_swapper(struct rpc_xprt *xprt, int enable)
+static int
+xs_enable_swap(struct rpc_xprt *xprt)
{
- struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
- xprt);
- int err = 0;
+ struct sock_xprt *xs = container_of(xprt, struct sock_xprt, xprt);
- if (enable) {
- xprt->swapper++;
- xs_set_memalloc(xprt);
- } else if (xprt->swapper) {
- xprt->swapper--;
- sk_clear_memalloc(transport->inet);
- }
-
- return err;
+ if (atomic_inc_return(&xprt->swapper) != 1)
+ return 0;
+ if (wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_KILLABLE))
+ return -ERESTARTSYS;
+ if (xs->inet)
+ sk_set_memalloc(xs->inet);
+ xprt_release_xprt(xprt, NULL);
+ return 0;
}
-EXPORT_SYMBOL_GPL(xs_swapper);
+
+/**
+ * xs_disable_swap - Untag this transport as being used for swap.
+ * @xprt: transport to tag
+ *
+ * Drop a "swapper" reference to this xprt on behalf of the rpc_clnt. If the
+ * swapper refcount goes to 0, untag the socket as a memalloc socket.
+ */
+static void
+xs_disable_swap(struct rpc_xprt *xprt)
+{
+ struct sock_xprt *xs = container_of(xprt, struct sock_xprt, xprt);
+
+ if (!atomic_dec_and_test(&xprt->swapper))
+ return;
+ if (wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_KILLABLE))
+ return;
+ if (xs->inet)
+ sk_clear_memalloc(xs->inet);
+ xprt_release_xprt(xprt, NULL);
+}
#else
static void xs_set_memalloc(struct rpc_xprt *xprt)
{
}
+
+static int
+xs_enable_swap(struct rpc_xprt *xprt)
+{
+ return -EINVAL;
+}
+
+static void
+xs_disable_swap(struct rpc_xprt *xprt)
+{
+}
#endif
static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
@@ -2057,6 +2086,27 @@
xprt_wake_pending_tasks(xprt, status);
}
+/**
+ * xs_tcp_shutdown - gracefully shut down a TCP socket
+ * @xprt: transport
+ *
+ * Initiates a graceful shutdown of the TCP socket by calling the
+ * equivalent of shutdown(SHUT_RDWR);
+ */
+static void xs_tcp_shutdown(struct rpc_xprt *xprt)
+{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
+
+ if (sock == NULL)
+ return;
+ if (xprt_connected(xprt)) {
+ kernel_sock_shutdown(sock, SHUT_RDWR);
+ trace_rpc_socket_shutdown(xprt, sock);
+ } else
+ xs_reset_transport(transport);
+}
+
static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
@@ -2067,6 +2117,7 @@
unsigned int keepidle = xprt->timeout->to_initval / HZ;
unsigned int keepcnt = xprt->timeout->to_retries + 1;
unsigned int opt_on = 1;
+ unsigned int timeo;
/* TCP Keepalive options */
kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
@@ -2078,6 +2129,12 @@
kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT,
(char *)&keepcnt, sizeof(keepcnt));
+ /* TCP user timeout (see RFC5482) */
+ timeo = jiffies_to_msecs(xprt->timeout->to_initval) *
+ (xprt->timeout->to_retries + 1);
+ kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT,
+ (char *)&timeo, sizeof(timeo));
+
write_lock_bh(&sk->sk_callback_lock);
xs_save_old_callbacks(transport, sk);
@@ -2125,9 +2182,6 @@
/**
* xs_tcp_setup_socket - create a TCP socket and connect to a remote endpoint
- * @xprt: RPC transport to connect
- * @transport: socket transport to connect
- * @create_sock: function to create a socket of the correct type
*
* Invoked by a work queue tasklet.
*/
@@ -2463,6 +2517,8 @@
.close = xs_close,
.destroy = xs_destroy,
.print_stats = xs_local_print_stats,
+ .enable_swap = xs_enable_swap,
+ .disable_swap = xs_disable_swap,
};
static struct rpc_xprt_ops xs_udp_ops = {
@@ -2482,6 +2538,9 @@
.close = xs_close,
.destroy = xs_destroy,
.print_stats = xs_udp_print_stats,
+ .enable_swap = xs_enable_swap,
+ .disable_swap = xs_disable_swap,
+ .inject_disconnect = xs_inject_disconnect,
};
static struct rpc_xprt_ops xs_tcp_ops = {
@@ -2498,6 +2557,9 @@
.close = xs_tcp_shutdown,
.destroy = xs_destroy,
.print_stats = xs_tcp_print_stats,
+ .enable_swap = xs_enable_swap,
+ .disable_swap = xs_disable_swap,
+ .inject_disconnect = xs_inject_disconnect,
};
/*
@@ -2515,6 +2577,9 @@
.close = bc_close,
.destroy = bc_destroy,
.print_stats = xs_tcp_print_stats,
+ .enable_swap = xs_enable_swap,
+ .disable_swap = xs_disable_swap,
+ .inject_disconnect = xs_inject_disconnect,
};
static int xs_init_anyaddr(const int family, struct sockaddr *sap)
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 84f77a0..9f2add3 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -171,8 +171,10 @@
* released.
*/
- attr->trans = SWITCHDEV_TRANS_ABORT;
- __switchdev_port_attr_set(dev, attr);
+ if (err != -EOPNOTSUPP) {
+ attr->trans = SWITCHDEV_TRANS_ABORT;
+ __switchdev_port_attr_set(dev, attr);
+ }
return err;
}
@@ -249,8 +251,10 @@
* released.
*/
- obj->trans = SWITCHDEV_TRANS_ABORT;
- __switchdev_port_obj_add(dev, obj);
+ if (err != -EOPNOTSUPP) {
+ obj->trans = SWITCHDEV_TRANS_ABORT;
+ __switchdev_port_obj_add(dev, obj);
+ }
return err;
}
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 915b328..59cabc9 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -797,23 +797,18 @@
return false;
}
-bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
- struct cfg80211_chan_def *chandef,
- enum nl80211_iftype iftype)
+static bool _cfg80211_reg_can_beacon(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef,
+ enum nl80211_iftype iftype,
+ bool check_no_ir)
{
bool res;
u32 prohibited_flags = IEEE80211_CHAN_DISABLED |
IEEE80211_CHAN_RADAR;
- trace_cfg80211_reg_can_beacon(wiphy, chandef, iftype);
+ trace_cfg80211_reg_can_beacon(wiphy, chandef, iftype, check_no_ir);
- /*
- * Under certain conditions suggested by some regulatory bodies a
- * GO/STA can IR on channels marked with IEEE80211_NO_IR. Set this flag
- * only if such relaxations are not enabled and the conditions are not
- * met.
- */
- if (!cfg80211_ir_permissive_chan(wiphy, iftype, chandef->chan))
+ if (check_no_ir)
prohibited_flags |= IEEE80211_CHAN_NO_IR;
if (cfg80211_chandef_dfs_required(wiphy, chandef, iftype) > 0 &&
@@ -827,8 +822,36 @@
trace_cfg80211_return_bool(res);
return res;
}
+
+bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef,
+ enum nl80211_iftype iftype)
+{
+ return _cfg80211_reg_can_beacon(wiphy, chandef, iftype, true);
+}
EXPORT_SYMBOL(cfg80211_reg_can_beacon);
+bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef,
+ enum nl80211_iftype iftype)
+{
+ bool check_no_ir;
+
+ ASSERT_RTNL();
+
+ /*
+ * Under certain conditions suggested by some regulatory bodies a
+ * GO/STA can IR on channels marked with IEEE80211_NO_IR. Set this flag
+ * only if such relaxations are not enabled and the conditions are not
+ * met.
+ */
+ check_no_ir = !cfg80211_ir_permissive_chan(wiphy, iftype,
+ chandef->chan);
+
+ return _cfg80211_reg_can_beacon(wiphy, chandef, iftype, check_no_ir);
+}
+EXPORT_SYMBOL(cfg80211_reg_can_beacon_relax);
+
int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
struct cfg80211_chan_def *chandef)
{
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c264eff..76b4157 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2003,7 +2003,8 @@
switch (iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
+ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
+ iftype)) {
result = -EINVAL;
break;
}
@@ -3403,8 +3404,8 @@
} else if (!nl80211_get_ap_channel(rdev, ¶ms))
return -EINVAL;
- if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
- wdev->iftype))
+ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
+ wdev->iftype))
return -EINVAL;
if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
@@ -6492,8 +6493,8 @@
if (err)
return err;
- if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
- wdev->iftype))
+ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
+ wdev->iftype))
return -EINVAL;
err = cfg80211_chandef_dfs_required(wdev->wiphy,
@@ -10170,7 +10171,8 @@
return -EINVAL;
/* we will be active on the TDLS link */
- if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
+ if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
+ wdev->iftype))
return -EINVAL;
/* don't allow switching to DFS channels */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d359e06..aa2d754 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -544,15 +544,15 @@
reg_regdb_query(alpha2);
if (reg_crda_timeouts > REG_MAX_CRDA_TIMEOUTS) {
- pr_info("Exceeded CRDA call max attempts. Not calling CRDA\n");
+ pr_debug("Exceeded CRDA call max attempts. Not calling CRDA\n");
return -EINVAL;
}
if (!is_world_regdom((char *) alpha2))
- pr_info("Calling CRDA for country: %c%c\n",
+ pr_debug("Calling CRDA for country: %c%c\n",
alpha2[0], alpha2[1]);
else
- pr_info("Calling CRDA to update world regulatory domain\n");
+ pr_debug("Calling CRDA to update world regulatory domain\n");
return kobject_uevent_env(®_pdev->dev.kobj, KOBJ_CHANGE, env);
}
@@ -1589,7 +1589,7 @@
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_ADHOC:
- return cfg80211_reg_can_beacon(wiphy, &chandef, iftype);
+ return cfg80211_reg_can_beacon_relax(wiphy, &chandef, iftype);
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
return cfg80211_chandef_usable(wiphy, &chandef,
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index af3617c..a808279 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2358,20 +2358,23 @@
TRACE_EVENT(cfg80211_reg_can_beacon,
TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef,
- enum nl80211_iftype iftype),
- TP_ARGS(wiphy, chandef, iftype),
+ enum nl80211_iftype iftype, bool check_no_ir),
+ TP_ARGS(wiphy, chandef, iftype, check_no_ir),
TP_STRUCT__entry(
WIPHY_ENTRY
CHAN_DEF_ENTRY
__field(enum nl80211_iftype, iftype)
+ __field(bool, check_no_ir)
),
TP_fast_assign(
WIPHY_ASSIGN;
CHAN_DEF_ASSIGN(chandef);
__entry->iftype = iftype;
+ __entry->check_no_ir = check_no_ir;
),
- TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", iftype=%d",
- WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->iftype)
+ TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", iftype=%d check_no_ir=%s",
+ WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->iftype,
+ BOOL_TO_STR(__entry->check_no_ir))
);
TRACE_EVENT(cfg80211_chandef_dfs_required,
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index f52abae..aceaaed 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -86,7 +86,7 @@
PHONY += oldnoconfig savedefconfig defconfig
# oldnoconfig is an alias of olddefconfig, because people already are dependent
-# on its behavior(sets new symbols to their default value but not 'n') with the
+# on its behavior (sets new symbols to their default value but not 'n') with the
# counter-intuitive name.
oldnoconfig: olddefconfig
@@ -126,10 +126,11 @@
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
- @echo ' nconfig - Update current config utilising a ncurses menu based program'
+ @echo ' nconfig - Update current config utilising a ncurses menu based'
+ @echo ' program'
@echo ' menuconfig - Update current config utilising a menu based program'
- @echo ' xconfig - Update current config utilising a QT based front-end'
- @echo ' gconfig - Update current config utilising a GTK based front-end'
+ @echo ' xconfig - Update current config utilising a Qt based front-end'
+ @echo ' gconfig - Update current config utilising a GTK+ based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' localmodconfig - Update current config disabling modules not loaded'
@echo ' localyesconfig - Update current config converting local mods to core'
@@ -142,7 +143,8 @@
@echo ' alldefconfig - New config with all symbols set to default'
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
- @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
+ @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their'
+ @echo ' default value'
@echo ' kvmconfig - Enable additional options for kvm guest kernel support'
@echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
@echo ' tinyconfig - Configure the tiniest possible kernel'
@@ -163,9 +165,9 @@
# mconf: Used for the menuconfig target
# Utilizes the lxdialog package
# qconf: Used for the xconfig target
-# Based on QT which needs to be installed to compile it
+# Based on Qt which needs to be installed to compile it
# gconf: Used for the gconfig target
-# Based on GTK which needs to be installed to compile it
+# Based on GTK+ which needs to be installed to compile it
# object files used by all kconfig flavours
lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
@@ -222,11 +224,11 @@
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
-# QT needs some extra effort...
+# Qt needs some extra effort...
$(obj)/.tmp_qtcheck:
@set -e; $(kecho) " CHECK qt"; dir=""; pkg=""; \
if ! pkg-config --exists QtCore 2> /dev/null; then \
- echo "* Unable to find the QT4 tool qmake. Trying to use QT3"; \
+ echo "* Unable to find the Qt4 tool qmake. Trying to use Qt3"; \
pkg-config --exists qt 2> /dev/null && pkg=qt; \
pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
if [ -n "$$pkg" ]; then \
@@ -240,8 +242,8 @@
done; \
if [ -z "$$dir" ]; then \
echo >&2 "*"; \
- echo >&2 "* Unable to find any QT installation. Please make sure that"; \
- echo >&2 "* the QT4 or QT3 development package is correctly installed and"; \
+ echo >&2 "* Unable to find any Qt installation. Please make sure that"; \
+ echo >&2 "* the Qt4 or Qt3 development package is correctly installed and"; \
echo >&2 "* either qmake can be found or install pkg-config or set"; \
echo >&2 "* the QTDIR environment variable to the correct location."; \
echo >&2 "*"; \
@@ -278,7 +280,7 @@
ifeq ($(MAKECMDGOALS),gconfig)
-include $(obj)/.tmp_gtkcheck
-# GTK needs some extra effort, too...
+# GTK+ needs some extra effort, too...
$(obj)/.tmp_gtkcheck:
@if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
@@ -309,7 +311,7 @@
$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
$(call cmd,moc)
-# Extract gconf menu items for I18N support
+# Extract gconf menu items for i18n support
$(obj)/gconf.glade.h: $(obj)/gconf.glade
$(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
$(obj)/gconf.glade
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index fb0a2a2..667d1aa 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -13,9 +13,6 @@
static int expr_eq(struct expr *e1, struct expr *e2);
static struct expr *expr_eliminate_yn(struct expr *e);
-static struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
-static struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
-static void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
struct expr *expr_alloc_symbol(struct symbol *sym)
{
@@ -82,6 +79,10 @@
e->left.expr = expr_copy(org->left.expr);
break;
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
e->left.sym = org->left.sym;
e->right.sym = org->right.sym;
@@ -114,6 +115,10 @@
expr_free(e->left.expr);
return;
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
break;
case E_OR:
@@ -200,6 +205,10 @@
return 0;
switch (e1->type) {
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
return e1->left.sym == e2->left.sym && e1->right.sym == e2->right.sym;
case E_SYMBOL:
@@ -559,62 +568,6 @@
#undef e2
}
-static void expr_eliminate_dups2(enum expr_type type, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
- struct expr *tmp, *tmp1, *tmp2;
-
- if (e1->type == type) {
- expr_eliminate_dups2(type, &e1->left.expr, &e2);
- expr_eliminate_dups2(type, &e1->right.expr, &e2);
- return;
- }
- if (e2->type == type) {
- expr_eliminate_dups2(type, &e1, &e2->left.expr);
- expr_eliminate_dups2(type, &e1, &e2->right.expr);
- }
- if (e1 == e2)
- return;
-
- switch (e1->type) {
- case E_OR:
- expr_eliminate_dups2(e1->type, &e1, &e1);
- // (FOO || BAR) && (!FOO && !BAR) -> n
- tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
- tmp2 = expr_copy(e2);
- tmp = expr_extract_eq_and(&tmp1, &tmp2);
- if (expr_is_yes(tmp1)) {
- expr_free(e1);
- e1 = expr_alloc_symbol(&symbol_no);
- trans_count++;
- }
- expr_free(tmp2);
- expr_free(tmp1);
- expr_free(tmp);
- break;
- case E_AND:
- expr_eliminate_dups2(e1->type, &e1, &e1);
- // (FOO && BAR) || (!FOO || !BAR) -> y
- tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
- tmp2 = expr_copy(e2);
- tmp = expr_extract_eq_or(&tmp1, &tmp2);
- if (expr_is_no(tmp1)) {
- expr_free(e1);
- e1 = expr_alloc_symbol(&symbol_yes);
- trans_count++;
- }
- expr_free(tmp2);
- expr_free(tmp1);
- expr_free(tmp);
- break;
- default:
- ;
- }
-#undef e1
-#undef e2
-}
-
struct expr *expr_eliminate_dups(struct expr *e)
{
int oldcount;
@@ -627,7 +580,6 @@
switch (e->type) {
case E_OR: case E_AND:
expr_eliminate_dups1(e->type, &e, &e);
- expr_eliminate_dups2(e->type, &e, &e);
default:
;
}
@@ -647,6 +599,10 @@
return NULL;
switch (e->type) {
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
case E_SYMBOL:
case E_LIST:
@@ -719,6 +675,22 @@
e = tmp;
e->type = e->type == E_EQUAL ? E_UNEQUAL : E_EQUAL;
break;
+ case E_LEQ:
+ case E_GEQ:
+ // !a<='x' -> a>'x'
+ tmp = e->left.expr;
+ free(e);
+ e = tmp;
+ e->type = e->type == E_LEQ ? E_GTH : E_LTH;
+ break;
+ case E_LTH:
+ case E_GTH:
+ // !a<'x' -> a>='x'
+ tmp = e->left.expr;
+ free(e);
+ e = tmp;
+ e->type = e->type == E_LTH ? E_GEQ : E_LEQ;
+ break;
case E_OR:
// !(a || b) -> !a && !b
tmp = e->left.expr;
@@ -789,6 +761,10 @@
case E_SYMBOL:
return dep->left.sym == sym;
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
return dep->left.sym == sym ||
dep->right.sym == sym;
@@ -829,57 +805,6 @@
return false;
}
-static struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
-{
- struct expr *tmp = NULL;
- expr_extract_eq(E_AND, &tmp, ep1, ep2);
- if (tmp) {
- *ep1 = expr_eliminate_yn(*ep1);
- *ep2 = expr_eliminate_yn(*ep2);
- }
- return tmp;
-}
-
-static struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
-{
- struct expr *tmp = NULL;
- expr_extract_eq(E_OR, &tmp, ep1, ep2);
- if (tmp) {
- *ep1 = expr_eliminate_yn(*ep1);
- *ep2 = expr_eliminate_yn(*ep2);
- }
- return tmp;
-}
-
-static void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
- if (e1->type == type) {
- expr_extract_eq(type, ep, &e1->left.expr, &e2);
- expr_extract_eq(type, ep, &e1->right.expr, &e2);
- return;
- }
- if (e2->type == type) {
- expr_extract_eq(type, ep, ep1, &e2->left.expr);
- expr_extract_eq(type, ep, ep1, &e2->right.expr);
- return;
- }
- if (expr_eq(e1, e2)) {
- *ep = *ep ? expr_alloc_two(type, *ep, e1) : e1;
- expr_free(e2);
- if (type == E_AND) {
- e1 = expr_alloc_symbol(&symbol_yes);
- e2 = expr_alloc_symbol(&symbol_yes);
- } else if (type == E_OR) {
- e1 = expr_alloc_symbol(&symbol_no);
- e2 = expr_alloc_symbol(&symbol_no);
- }
- }
-#undef e1
-#undef e2
-}
-
struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
{
struct expr *e1, *e2;
@@ -914,6 +839,10 @@
case E_NOT:
return expr_trans_compare(e->left.expr, type == E_EQUAL ? E_UNEQUAL : E_EQUAL, sym);
case E_UNEQUAL:
+ case E_LTH:
+ case E_LEQ:
+ case E_GTH:
+ case E_GEQ:
case E_EQUAL:
if (type == E_EQUAL) {
if (sym == &symbol_yes)
@@ -941,10 +870,57 @@
return NULL;
}
+enum string_value_kind {
+ k_string,
+ k_signed,
+ k_unsigned,
+ k_invalid
+};
+
+union string_value {
+ unsigned long long u;
+ signed long long s;
+};
+
+static enum string_value_kind expr_parse_string(const char *str,
+ enum symbol_type type,
+ union string_value *val)
+{
+ char *tail;
+ enum string_value_kind kind;
+
+ errno = 0;
+ switch (type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ return k_string;
+ case S_INT:
+ val->s = strtoll(str, &tail, 10);
+ kind = k_signed;
+ break;
+ case S_HEX:
+ val->u = strtoull(str, &tail, 16);
+ kind = k_unsigned;
+ break;
+ case S_STRING:
+ case S_UNKNOWN:
+ val->s = strtoll(str, &tail, 0);
+ kind = k_signed;
+ break;
+ default:
+ return k_invalid;
+ }
+ return !errno && !*tail && tail > str && isxdigit(tail[-1])
+ ? kind : k_string;
+}
+
tristate expr_calc_value(struct expr *e)
{
tristate val1, val2;
const char *str1, *str2;
+ enum string_value_kind k1 = k_string, k2 = k_string;
+ union string_value lval = {}, rval = {};
+ int res;
if (!e)
return yes;
@@ -965,21 +941,57 @@
val1 = expr_calc_value(e->left.expr);
return EXPR_NOT(val1);
case E_EQUAL:
- sym_calc_value(e->left.sym);
- sym_calc_value(e->right.sym);
- str1 = sym_get_string_value(e->left.sym);
- str2 = sym_get_string_value(e->right.sym);
- return !strcmp(str1, str2) ? yes : no;
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
- sym_calc_value(e->left.sym);
- sym_calc_value(e->right.sym);
- str1 = sym_get_string_value(e->left.sym);
- str2 = sym_get_string_value(e->right.sym);
- return !strcmp(str1, str2) ? no : yes;
+ break;
default:
printf("expr_calc_value: %d?\n", e->type);
return no;
}
+
+ sym_calc_value(e->left.sym);
+ sym_calc_value(e->right.sym);
+ str1 = sym_get_string_value(e->left.sym);
+ str2 = sym_get_string_value(e->right.sym);
+
+ if (e->left.sym->type != S_STRING || e->right.sym->type != S_STRING) {
+ k1 = expr_parse_string(str1, e->left.sym->type, &lval);
+ k2 = expr_parse_string(str2, e->right.sym->type, &rval);
+ }
+
+ if (k1 == k_string || k2 == k_string)
+ res = strcmp(str1, str2);
+ else if (k1 == k_invalid || k2 == k_invalid) {
+ if (e->type != E_EQUAL && e->type != E_UNEQUAL) {
+ printf("Cannot compare \"%s\" and \"%s\"\n", str1, str2);
+ return no;
+ }
+ res = strcmp(str1, str2);
+ } else if (k1 == k_unsigned || k2 == k_unsigned)
+ res = (lval.u > rval.u) - (lval.u < rval.u);
+ else /* if (k1 == k_signed && k2 == k_signed) */
+ res = (lval.s > rval.s) - (lval.s < rval.s);
+
+ switch(e->type) {
+ case E_EQUAL:
+ return res ? no : yes;
+ case E_GEQ:
+ return res >= 0 ? yes : no;
+ case E_GTH:
+ return res > 0 ? yes : no;
+ case E_LEQ:
+ return res <= 0 ? yes : no;
+ case E_LTH:
+ return res < 0 ? yes : no;
+ case E_UNEQUAL:
+ return res ? yes : no;
+ default:
+ printf("expr_calc_value: relation %d?\n", e->type);
+ return no;
+ }
}
static int expr_compare_type(enum expr_type t1, enum expr_type t2)
@@ -987,6 +999,12 @@
if (t1 == t2)
return 0;
switch (t1) {
+ case E_LEQ:
+ case E_LTH:
+ case E_GEQ:
+ case E_GTH:
+ if (t2 == E_EQUAL || t2 == E_UNEQUAL)
+ return 1;
case E_EQUAL:
case E_UNEQUAL:
if (t2 == E_NOT)
@@ -1080,6 +1098,24 @@
fn(data, NULL, "=");
fn(data, e->right.sym, e->right.sym->name);
break;
+ case E_LEQ:
+ case E_LTH:
+ if (e->left.sym->name)
+ fn(data, e->left.sym, e->left.sym->name);
+ else
+ fn(data, NULL, "<choice>");
+ fn(data, NULL, e->type == E_LEQ ? "<=" : "<");
+ fn(data, e->right.sym, e->right.sym->name);
+ break;
+ case E_GEQ:
+ case E_GTH:
+ if (e->left.sym->name)
+ fn(data, e->left.sym, e->left.sym->name);
+ else
+ fn(data, NULL, "<choice>");
+ fn(data, NULL, e->type == E_LEQ ? ">=" : ">");
+ fn(data, e->right.sym, e->right.sym->name);
+ break;
case E_UNEQUAL:
if (e->left.sym->name)
fn(data, e->left.sym, e->left.sym->name);
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index a2fc96a..973b6f7 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -29,7 +29,9 @@
} tristate;
enum expr_type {
- E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
+ E_NONE, E_OR, E_AND, E_NOT,
+ E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ,
+ E_LIST, E_SYMBOL, E_RANGE
};
union expr_data {
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 6731377..70c5ee1 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -1166,6 +1166,10 @@
case E_NOT:
return sym_check_expr_deps(e->left.expr);
case E_EQUAL:
+ case E_GEQ:
+ case E_GTH:
+ case E_LEQ:
+ case E_LTH:
case E_UNEQUAL:
sym = sym_check_deps(e->left.sym);
if (sym)
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 6c62d93..200a3fe 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -122,6 +122,10 @@
"!" return T_NOT;
"=" return T_EQUAL;
"!=" return T_UNEQUAL;
+ "<=" return T_LESS_EQUAL;
+ ">=" return T_GREATER_EQUAL;
+ "<" return T_LESS;
+ ">" return T_GREATER;
\"|\' {
str = yytext[0];
new_string();
@@ -141,7 +145,12 @@
}
#.* /* comment */
\\\n current_file->lineno++;
- .
+ [[:blank:]]+
+ . {
+ fprintf(stderr,
+ "%s:%d:warning: ignoring unsupported character '%c'\n",
+ zconf_curname(), zconf_lineno(), *yytext);
+ }
<<EOF>> {
BEGIN(INITIAL);
}
diff --git a/scripts/kconfig/zconf.lex.c_shipped b/scripts/kconfig/zconf.lex.c_shipped
index 349a7f2..dd4e86c 100644
--- a/scripts/kconfig/zconf.lex.c_shipped
+++ b/scripts/kconfig/zconf.lex.c_shipped
@@ -365,323 +365,354 @@
extern char *zconftext;
#define yytext_ptr zconftext
-static yyconst flex_int16_t yy_nxt[][17] =
+static yyconst flex_int16_t yy_nxt[][19] =
{
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0
},
{
11, 12, 13, 14, 12, 12, 15, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12
+ 12, 12, 12, 12, 12, 12, 12, 12, 12
},
{
11, 12, 13, 14, 12, 12, 15, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12
+ 12, 12, 12, 12, 12, 12, 12, 12, 12
},
{
11, 16, 16, 17, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 18, 16, 16, 16
+ 16, 16, 16, 18, 16, 16, 16, 16, 16
},
{
11, 16, 16, 17, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 18, 16, 16, 16
+ 16, 16, 16, 18, 16, 16, 16, 16, 16
},
{
11, 19, 20, 21, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19
+ 19, 19, 19, 19, 19, 19, 19, 19, 19
},
{
11, 19, 20, 21, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19
+ 19, 19, 19, 19, 19, 19, 19, 19, 19
},
{
11, 22, 22, 23, 22, 24, 22, 22, 24, 22,
- 22, 22, 22, 22, 22, 25, 22
+ 22, 22, 22, 22, 22, 22, 22, 25, 22
},
{
11, 22, 22, 23, 22, 24, 22, 22, 24, 22,
- 22, 22, 22, 22, 22, 25, 22
+ 22, 22, 22, 22, 22, 22, 22, 25, 22
},
{
- 11, 26, 26, 27, 28, 29, 30, 31, 29, 32,
- 33, 34, 35, 35, 36, 37, 38
+ 11, 26, 27, 28, 29, 30, 31, 32, 30, 33,
+ 34, 35, 36, 36, 37, 38, 39, 40, 41
},
{
- 11, 26, 26, 27, 28, 29, 30, 31, 29, 32,
- 33, 34, 35, 35, 36, 37, 38
+ 11, 26, 27, 28, 29, 30, 31, 32, 30, 33,
+ 34, 35, 36, 36, 37, 38, 39, 40, 41
},
{
-11, -11, -11, -11, -11, -11, -11, -11, -11, -11,
- -11, -11, -11, -11, -11, -11, -11
+ -11, -11, -11, -11, -11, -11, -11, -11, -11
},
{
11, -12, -12, -12, -12, -12, -12, -12, -12, -12,
- -12, -12, -12, -12, -12, -12, -12
+ -12, -12, -12, -12, -12, -12, -12, -12, -12
},
{
- 11, -13, 39, 40, -13, -13, 41, -13, -13, -13,
- -13, -13, -13, -13, -13, -13, -13
+ 11, -13, 42, 43, -13, -13, 44, -13, -13, -13,
+ -13, -13, -13, -13, -13, -13, -13, -13, -13
},
{
11, -14, -14, -14, -14, -14, -14, -14, -14, -14,
- -14, -14, -14, -14, -14, -14, -14
+ -14, -14, -14, -14, -14, -14, -14, -14, -14
},
{
- 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42
+ 11, 45, 45, 46, 45, 45, 45, 45, 45, 45,
+ 45, 45, 45, 45, 45, 45, 45, 45, 45
},
{
11, -16, -16, -16, -16, -16, -16, -16, -16, -16,
- -16, -16, -16, -16, -16, -16, -16
+ -16, -16, -16, -16, -16, -16, -16, -16, -16
},
{
11, -17, -17, -17, -17, -17, -17, -17, -17, -17,
- -17, -17, -17, -17, -17, -17, -17
+ -17, -17, -17, -17, -17, -17, -17, -17, -17
},
{
11, -18, -18, -18, -18, -18, -18, -18, -18, -18,
- -18, -18, -18, 44, -18, -18, -18
+ -18, -18, -18, 47, -18, -18, -18, -18, -18
},
{
- 11, 45, 45, -19, 45, 45, 45, 45, 45, 45,
- 45, 45, 45, 45, 45, 45, 45
+ 11, 48, 48, -19, 48, 48, 48, 48, 48, 48,
+ 48, 48, 48, 48, 48, 48, 48, 48, 48
},
{
- 11, -20, 46, 47, -20, -20, -20, -20, -20, -20,
- -20, -20, -20, -20, -20, -20, -20
+ 11, -20, 49, 50, -20, -20, -20, -20, -20, -20,
+ -20, -20, -20, -20, -20, -20, -20, -20, -20
},
{
- 11, 48, -21, -21, 48, 48, 48, 48, 48, 48,
- 48, 48, 48, 48, 48, 48, 48
+ 11, 51, -21, -21, 51, 51, 51, 51, 51, 51,
+ 51, 51, 51, 51, 51, 51, 51, 51, 51
},
{
- 11, 49, 49, 50, 49, -22, 49, 49, -22, 49,
- 49, 49, 49, 49, 49, -22, 49
+ 11, 52, 52, 53, 52, -22, 52, 52, -22, 52,
+ 52, 52, 52, 52, 52, 52, 52, -22, 52
},
{
11, -23, -23, -23, -23, -23, -23, -23, -23, -23,
- -23, -23, -23, -23, -23, -23, -23
+ -23, -23, -23, -23, -23, -23, -23, -23, -23
},
{
11, -24, -24, -24, -24, -24, -24, -24, -24, -24,
- -24, -24, -24, -24, -24, -24, -24
+ -24, -24, -24, -24, -24, -24, -24, -24, -24
},
{
- 11, 51, 51, 52, 51, 51, 51, 51, 51, 51,
- 51, 51, 51, 51, 51, 51, 51
+ 11, 54, 54, 55, 54, 54, 54, 54, 54, 54,
+ 54, 54, 54, 54, 54, 54, 54, 54, 54
},
{
11, -26, -26, -26, -26, -26, -26, -26, -26, -26,
- -26, -26, -26, -26, -26, -26, -26
+ -26, -26, -26, -26, -26, -26, -26, -26, -26
},
{
- 11, -27, -27, -27, -27, -27, -27, -27, -27, -27,
- -27, -27, -27, -27, -27, -27, -27
+ 11, -27, 56, -27, -27, -27, -27, -27, -27, -27,
+ -27, -27, -27, -27, -27, -27, -27, -27, -27
},
{
11, -28, -28, -28, -28, -28, -28, -28, -28, -28,
- -28, -28, -28, -28, 53, -28, -28
+ -28, -28, -28, -28, -28, -28, -28, -28, -28
},
{
11, -29, -29, -29, -29, -29, -29, -29, -29, -29,
- -29, -29, -29, -29, -29, -29, -29
+ -29, -29, -29, -29, -29, 57, -29, -29, -29
},
{
- 11, 54, 54, -30, 54, 54, 54, 54, 54, 54,
- 54, 54, 54, 54, 54, 54, 54
+ 11, -30, -30, -30, -30, -30, -30, -30, -30, -30,
+ -30, -30, -30, -30, -30, -30, -30, -30, -30
},
{
- 11, -31, -31, -31, -31, -31, -31, 55, -31, -31,
- -31, -31, -31, -31, -31, -31, -31
+ 11, 58, 58, -31, 58, 58, 58, 58, 58, 58,
+ 58, 58, 58, 58, 58, 58, 58, 58, 58
},
{
- 11, -32, -32, -32, -32, -32, -32, -32, -32, -32,
- -32, -32, -32, -32, -32, -32, -32
+ 11, -32, -32, -32, -32, -32, -32, 59, -32, -32,
+ -32, -32, -32, -32, -32, -32, -32, -32, -32
},
{
11, -33, -33, -33, -33, -33, -33, -33, -33, -33,
- -33, -33, -33, -33, -33, -33, -33
+ -33, -33, -33, -33, -33, -33, -33, -33, -33
},
{
11, -34, -34, -34, -34, -34, -34, -34, -34, -34,
- -34, 56, 57, 57, -34, -34, -34
+ -34, -34, -34, -34, -34, -34, -34, -34, -34
},
{
11, -35, -35, -35, -35, -35, -35, -35, -35, -35,
- -35, 57, 57, 57, -35, -35, -35
+ -35, 60, 61, 61, -35, -35, -35, -35, -35
},
{
11, -36, -36, -36, -36, -36, -36, -36, -36, -36,
- -36, -36, -36, -36, -36, -36, -36
+ -36, 61, 61, 61, -36, -36, -36, -36, -36
},
{
- 11, -37, -37, 58, -37, -37, -37, -37, -37, -37,
- -37, -37, -37, -37, -37, -37, -37
+ 11, -37, -37, -37, -37, -37, -37, -37, -37, -37,
+ -37, -37, -37, -37, -37, 62, -37, -37, -37
},
{
11, -38, -38, -38, -38, -38, -38, -38, -38, -38,
- -38, -38, -38, -38, -38, -38, 59
+ -38, -38, -38, -38, -38, -38, -38, -38, -38
},
{
- 11, -39, 39, 40, -39, -39, 41, -39, -39, -39,
- -39, -39, -39, -39, -39, -39, -39
+ 11, -39, -39, -39, -39, -39, -39, -39, -39, -39,
+ -39, -39, -39, -39, -39, 63, -39, -39, -39
},
{
- 11, -40, -40, -40, -40, -40, -40, -40, -40, -40,
- -40, -40, -40, -40, -40, -40, -40
+ 11, -40, -40, 64, -40, -40, -40, -40, -40, -40,
+ -40, -40, -40, -40, -40, -40, -40, -40, -40
},
{
- 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42
+ 11, -41, -41, -41, -41, -41, -41, -41, -41, -41,
+ -41, -41, -41, -41, -41, -41, -41, -41, 65
},
{
- 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42
+ 11, -42, 42, 43, -42, -42, 44, -42, -42, -42,
+ -42, -42, -42, -42, -42, -42, -42, -42, -42
},
{
11, -43, -43, -43, -43, -43, -43, -43, -43, -43,
- -43, -43, -43, -43, -43, -43, -43
+ -43, -43, -43, -43, -43, -43, -43, -43, -43
},
{
- 11, -44, -44, -44, -44, -44, -44, -44, -44, -44,
- -44, -44, -44, 44, -44, -44, -44
+ 11, 45, 45, 46, 45, 45, 45, 45, 45, 45,
+ 45, 45, 45, 45, 45, 45, 45, 45, 45
},
{
- 11, 45, 45, -45, 45, 45, 45, 45, 45, 45,
- 45, 45, 45, 45, 45, 45, 45
+ 11, 45, 45, 46, 45, 45, 45, 45, 45, 45,
+ 45, 45, 45, 45, 45, 45, 45, 45, 45
},
{
- 11, -46, 46, 47, -46, -46, -46, -46, -46, -46,
- -46, -46, -46, -46, -46, -46, -46
+ 11, -46, -46, -46, -46, -46, -46, -46, -46, -46,
+ -46, -46, -46, -46, -46, -46, -46, -46, -46
},
{
- 11, 48, -47, -47, 48, 48, 48, 48, 48, 48,
- 48, 48, 48, 48, 48, 48, 48
+ 11, -47, -47, -47, -47, -47, -47, -47, -47, -47,
+ -47, -47, -47, 47, -47, -47, -47, -47, -47
},
{
- 11, -48, -48, -48, -48, -48, -48, -48, -48, -48,
- -48, -48, -48, -48, -48, -48, -48
+ 11, 48, 48, -48, 48, 48, 48, 48, 48, 48,
+ 48, 48, 48, 48, 48, 48, 48, 48, 48
},
{
- 11, 49, 49, 50, 49, -49, 49, 49, -49, 49,
- 49, 49, 49, 49, 49, -49, 49
+ 11, -49, 49, 50, -49, -49, -49, -49, -49, -49,
+ -49, -49, -49, -49, -49, -49, -49, -49, -49
},
{
- 11, -50, -50, -50, -50, -50, -50, -50, -50, -50,
- -50, -50, -50, -50, -50, -50, -50
+ 11, 51, -50, -50, 51, 51, 51, 51, 51, 51,
+ 51, 51, 51, 51, 51, 51, 51, 51, 51
},
{
- 11, -51, -51, 52, -51, -51, -51, -51, -51, -51,
- -51, -51, -51, -51, -51, -51, -51
+ 11, -51, -51, -51, -51, -51, -51, -51, -51, -51,
+ -51, -51, -51, -51, -51, -51, -51, -51, -51
},
{
- 11, -52, -52, -52, -52, -52, -52, -52, -52, -52,
- -52, -52, -52, -52, -52, -52, -52
+ 11, 52, 52, 53, 52, -52, 52, 52, -52, 52,
+ 52, 52, 52, 52, 52, 52, 52, -52, 52
},
{
11, -53, -53, -53, -53, -53, -53, -53, -53, -53,
- -53, -53, -53, -53, -53, -53, -53
+ -53, -53, -53, -53, -53, -53, -53, -53, -53
},
{
- 11, 54, 54, -54, 54, 54, 54, 54, 54, 54,
- 54, 54, 54, 54, 54, 54, 54
+ 11, -54, -54, 55, -54, -54, -54, -54, -54, -54,
+ -54, -54, -54, -54, -54, -54, -54, -54, -54
},
{
11, -55, -55, -55, -55, -55, -55, -55, -55, -55,
- -55, -55, -55, -55, -55, -55, -55
+ -55, -55, -55, -55, -55, -55, -55, -55, -55
},
{
- 11, -56, -56, -56, -56, -56, -56, -56, -56, -56,
- -56, 60, 57, 57, -56, -56, -56
+ 11, -56, 56, -56, -56, -56, -56, -56, -56, -56,
+ -56, -56, -56, -56, -56, -56, -56, -56, -56
},
{
11, -57, -57, -57, -57, -57, -57, -57, -57, -57,
- -57, 57, 57, 57, -57, -57, -57
+ -57, -57, -57, -57, -57, -57, -57, -57, -57
},
{
- 11, -58, -58, -58, -58, -58, -58, -58, -58, -58,
- -58, -58, -58, -58, -58, -58, -58
+ 11, 58, 58, -58, 58, 58, 58, 58, 58, 58,
+ 58, 58, 58, 58, 58, 58, 58, 58, 58
},
{
11, -59, -59, -59, -59, -59, -59, -59, -59, -59,
- -59, -59, -59, -59, -59, -59, -59
+ -59, -59, -59, -59, -59, -59, -59, -59, -59
},
{
11, -60, -60, -60, -60, -60, -60, -60, -60, -60,
- -60, 57, 57, 57, -60, -60, -60
+ -60, 66, 61, 61, -60, -60, -60, -60, -60
+ },
+
+ {
+ 11, -61, -61, -61, -61, -61, -61, -61, -61, -61,
+ -61, 61, 61, 61, -61, -61, -61, -61, -61
+ },
+
+ {
+ 11, -62, -62, -62, -62, -62, -62, -62, -62, -62,
+ -62, -62, -62, -62, -62, -62, -62, -62, -62
+ },
+
+ {
+ 11, -63, -63, -63, -63, -63, -63, -63, -63, -63,
+ -63, -63, -63, -63, -63, -63, -63, -63, -63
+ },
+
+ {
+ 11, -64, -64, -64, -64, -64, -64, -64, -64, -64,
+ -64, -64, -64, -64, -64, -64, -64, -64, -64
+
+ },
+
+ {
+ 11, -65, -65, -65, -65, -65, -65, -65, -65, -65,
+ -65, -65, -65, -65, -65, -65, -65, -65, -65
+ },
+
+ {
+ 11, -66, -66, -66, -66, -66, -66, -66, -66, -66,
+ -66, 61, 61, 61, -66, -66, -66, -66, -66
},
} ;
@@ -701,8 +732,8 @@
*yy_cp = '\0'; \
(yy_c_buf_p) = yy_cp;
-#define YY_NUM_RULES 33
-#define YY_END_OF_BUFFER 34
+#define YY_NUM_RULES 38
+#define YY_END_OF_BUFFER 39
/* This struct is not used in this scanner,
but its presence is necessary. */
struct yy_trans_info
@@ -710,14 +741,15 @@
flex_int32_t yy_verify;
flex_int32_t yy_nxt;
};
-static yyconst flex_int16_t yy_accept[61] =
+static yyconst flex_int16_t yy_accept[67] =
{ 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 34, 5, 4, 2, 3, 7, 8, 6, 32, 29,
- 31, 24, 28, 27, 26, 22, 17, 13, 16, 20,
- 22, 11, 12, 19, 19, 14, 22, 22, 4, 2,
- 3, 3, 1, 6, 32, 29, 31, 30, 24, 23,
- 26, 25, 15, 20, 9, 19, 19, 21, 10, 18
+ 39, 5, 4, 2, 3, 7, 8, 6, 37, 34,
+ 36, 29, 33, 32, 31, 27, 26, 21, 13, 20,
+ 24, 27, 11, 12, 23, 23, 18, 14, 19, 27,
+ 27, 4, 2, 3, 3, 1, 6, 37, 34, 36,
+ 35, 29, 28, 31, 30, 26, 15, 24, 9, 23,
+ 23, 16, 17, 25, 10, 22
} ;
static yyconst flex_int32_t yy_ec[256] =
@@ -727,15 +759,15 @@
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 5, 6, 1, 1, 7, 8, 9,
10, 1, 1, 1, 11, 12, 12, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 1, 1, 1,
- 14, 1, 1, 1, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 1, 1, 14,
+ 15, 16, 1, 1, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 1, 15, 1, 1, 13, 1, 13, 13, 13, 13,
+ 1, 17, 1, 1, 13, 1, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 1, 16, 1, 1, 1, 1, 1, 1,
+ 13, 13, 1, 18, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@@ -920,7 +952,7 @@
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
-#define ECHO do { if (fwrite( zconftext, zconfleng, 1, zconfout )) {} } while (0)
+#define ECHO fwrite( zconftext, zconfleng, 1, zconfout )
#endif
/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
@@ -1142,22 +1174,38 @@
YY_BREAK
case 16:
YY_RULE_SETUP
+return T_LESS_EQUAL;
+ YY_BREAK
+case 17:
+YY_RULE_SETUP
+return T_GREATER_EQUAL;
+ YY_BREAK
+case 18:
+YY_RULE_SETUP
+return T_LESS;
+ YY_BREAK
+case 19:
+YY_RULE_SETUP
+return T_GREATER;
+ YY_BREAK
+case 20:
+YY_RULE_SETUP
{
str = zconftext[0];
new_string();
BEGIN(STRING);
}
YY_BREAK
-case 17:
-/* rule 17 can match eol */
+case 21:
+/* rule 21 can match eol */
YY_RULE_SETUP
BEGIN(INITIAL); current_file->lineno++; return T_EOL;
YY_BREAK
-case 18:
+case 22:
YY_RULE_SETUP
/* ignore */
YY_BREAK
-case 19:
+case 23:
YY_RULE_SETUP
{
const struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
@@ -1170,27 +1218,35 @@
return T_WORD;
}
YY_BREAK
-case 20:
+case 24:
YY_RULE_SETUP
/* comment */
YY_BREAK
-case 21:
-/* rule 21 can match eol */
+case 25:
+/* rule 25 can match eol */
YY_RULE_SETUP
current_file->lineno++;
YY_BREAK
-case 22:
+case 26:
YY_RULE_SETUP
YY_BREAK
+case 27:
+YY_RULE_SETUP
+{
+ fprintf(stderr,
+ "%s:%d:warning: ignoring unsupported character '%c'\n",
+ zconf_curname(), zconf_lineno(), *zconftext);
+ }
+ YY_BREAK
case YY_STATE_EOF(PARAM):
{
BEGIN(INITIAL);
}
YY_BREAK
-case 23:
-/* rule 23 can match eol */
+case 28:
+/* rule 28 can match eol */
*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
(yy_c_buf_p) = yy_cp -= 1;
YY_DO_BEFORE_ACTION; /* set up zconftext again */
@@ -1201,14 +1257,14 @@
return T_WORD_QUOTE;
}
YY_BREAK
-case 24:
+case 29:
YY_RULE_SETUP
{
append_string(zconftext, zconfleng);
}
YY_BREAK
-case 25:
-/* rule 25 can match eol */
+case 30:
+/* rule 30 can match eol */
*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
(yy_c_buf_p) = yy_cp -= 1;
YY_DO_BEFORE_ACTION; /* set up zconftext again */
@@ -1219,13 +1275,13 @@
return T_WORD_QUOTE;
}
YY_BREAK
-case 26:
+case 31:
YY_RULE_SETUP
{
append_string(zconftext + 1, zconfleng - 1);
}
YY_BREAK
-case 27:
+case 32:
YY_RULE_SETUP
{
if (str == zconftext[0]) {
@@ -1236,8 +1292,8 @@
append_string(zconftext, 1);
}
YY_BREAK
-case 28:
-/* rule 28 can match eol */
+case 33:
+/* rule 33 can match eol */
YY_RULE_SETUP
{
printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
@@ -1252,7 +1308,7 @@
}
YY_BREAK
-case 29:
+case 34:
YY_RULE_SETUP
{
ts = 0;
@@ -1277,8 +1333,8 @@
}
}
YY_BREAK
-case 30:
-/* rule 30 can match eol */
+case 35:
+/* rule 35 can match eol */
*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
(yy_c_buf_p) = yy_cp -= 1;
YY_DO_BEFORE_ACTION; /* set up zconftext again */
@@ -1289,15 +1345,15 @@
return T_HELPTEXT;
}
YY_BREAK
-case 31:
-/* rule 31 can match eol */
+case 36:
+/* rule 36 can match eol */
YY_RULE_SETUP
{
current_file->lineno++;
append_string("\n", 1);
}
YY_BREAK
-case 32:
+case 37:
YY_RULE_SETUP
{
while (zconfleng) {
@@ -1328,7 +1384,7 @@
yyterminate();
}
YY_BREAK
-case 33:
+case 38:
YY_RULE_SETUP
YY_FATAL_ERROR( "flex scanner jammed" );
YY_BREAK
diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped
index de5e84e..7a4d658 100644
--- a/scripts/kconfig/zconf.tab.c_shipped
+++ b/scripts/kconfig/zconf.tab.c_shipped
@@ -1,8 +1,8 @@
-/* A Bison parser, made by GNU Bison 2.5. */
+/* A Bison parser, made by GNU Bison 2.5.1. */
/* Bison implementation for Yacc-like parsers in C
- Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
+ Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -44,7 +44,7 @@
#define YYBISON 1
/* Bison version. */
-#define YYBISON_VERSION "2.5"
+#define YYBISON_VERSION "2.5.1"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
@@ -108,6 +108,14 @@
+# ifndef YY_NULL
+# if defined __cplusplus && 201103L <= __cplusplus
+# define YY_NULL nullptr
+# else
+# define YY_NULL 0
+# endif
+# endif
+
/* Enabling traces. */
#ifndef YYDEBUG
# define YYDEBUG 1
@@ -159,13 +167,17 @@
T_WORD = 281,
T_WORD_QUOTE = 282,
T_UNEQUAL = 283,
- T_CLOSE_PAREN = 284,
- T_OPEN_PAREN = 285,
- T_EOL = 286,
- T_OR = 287,
- T_AND = 288,
- T_EQUAL = 289,
- T_NOT = 290
+ T_LESS = 284,
+ T_LESS_EQUAL = 285,
+ T_GREATER = 286,
+ T_GREATER_EQUAL = 287,
+ T_CLOSE_PAREN = 288,
+ T_OPEN_PAREN = 289,
+ T_EOL = 290,
+ T_OR = 291,
+ T_AND = 292,
+ T_EQUAL = 293,
+ T_NOT = 294
};
#endif
@@ -304,6 +316,7 @@
# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+ /* Use EXIT_SUCCESS as a witness for stdlib.h. */
# ifndef EXIT_SUCCESS
# define EXIT_SUCCESS 0
# endif
@@ -395,20 +408,20 @@
#endif
#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
-/* Copy COUNT objects from FROM to TO. The source and destination do
+/* Copy COUNT objects from SRC to DST. The source and destination do
not overlap. */
# ifndef YYCOPY
# if defined __GNUC__ && 1 < __GNUC__
-# define YYCOPY(To, From, Count) \
- __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# define YYCOPY(Dst, Src, Count) \
+ __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
# else
-# define YYCOPY(To, From, Count) \
- do \
- { \
- YYSIZE_T yyi; \
- for (yyi = 0; yyi < (Count); yyi++) \
- (To)[yyi] = (From)[yyi]; \
- } \
+# define YYCOPY(Dst, Src, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (Dst)[yyi] = (Src)[yyi]; \
+ } \
while (YYID (0))
# endif
# endif
@@ -417,20 +430,20 @@
/* YYFINAL -- State number of the termination state. */
#define YYFINAL 11
/* YYLAST -- Last index in YYTABLE. */
-#define YYLAST 290
+#define YYLAST 298
/* YYNTOKENS -- Number of terminals. */
-#define YYNTOKENS 36
+#define YYNTOKENS 40
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS 50
/* YYNRULES -- Number of rules. */
-#define YYNRULES 118
+#define YYNRULES 122
/* YYNRULES -- Number of states. */
-#define YYNSTATES 191
+#define YYNSTATES 199
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
#define YYUNDEFTOK 2
-#define YYMAXUTOK 290
+#define YYMAXUTOK 294
#define YYTRANSLATE(YYX) \
((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -467,7 +480,7 @@
5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
- 35
+ 35, 36, 37, 38, 39
};
#if YYDEBUG
@@ -486,64 +499,67 @@
235, 238, 241, 244, 248, 252, 255, 258, 261, 262,
265, 268, 271, 276, 277, 280, 283, 286, 287, 290,
292, 294, 297, 300, 303, 305, 308, 309, 312, 314,
- 318, 322, 326, 329, 333, 337, 339, 341, 342
+ 318, 322, 326, 330, 334, 338, 342, 345, 349, 353,
+ 355, 357, 358
};
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const yytype_int8 yyrhs[] =
{
- 37, 0, -1, 81, 38, -1, 38, -1, 63, 39,
- -1, 39, -1, -1, 39, 41, -1, 39, 55, -1,
- 39, 67, -1, 39, 80, -1, 39, 26, 1, 31,
- -1, 39, 40, 1, 31, -1, 39, 1, 31, -1,
+ 41, 0, -1, 85, 42, -1, 42, -1, 67, 43,
+ -1, 43, -1, -1, 43, 45, -1, 43, 59, -1,
+ 43, 71, -1, 43, 84, -1, 43, 26, 1, 35,
+ -1, 43, 44, 1, 35, -1, 43, 1, 35, -1,
16, -1, 18, -1, 19, -1, 21, -1, 17, -1,
- 22, -1, 20, -1, 23, -1, 31, -1, 61, -1,
- 71, -1, 44, -1, 46, -1, 69, -1, 26, 1,
- 31, -1, 1, 31, -1, 10, 26, 31, -1, 43,
- 47, -1, 11, 26, 31, -1, 45, 47, -1, -1,
- 47, 48, -1, 47, 49, -1, 47, 75, -1, 47,
- 73, -1, 47, 42, -1, 47, 31, -1, 19, 78,
- 31, -1, 18, 79, 82, 31, -1, 20, 83, 82,
- 31, -1, 21, 26, 82, 31, -1, 22, 84, 84,
- 82, 31, -1, 24, 50, 31, -1, -1, 50, 26,
- 51, -1, -1, 34, 79, -1, 7, 85, 31, -1,
- 52, 56, -1, 80, -1, 53, 58, 54, -1, -1,
- 56, 57, -1, 56, 75, -1, 56, 73, -1, 56,
- 31, -1, 56, 42, -1, 18, 79, 82, 31, -1,
- 19, 78, 31, -1, 17, 31, -1, 20, 26, 82,
- 31, -1, -1, 58, 41, -1, 14, 83, 81, -1,
- 80, -1, 59, 62, 60, -1, -1, 62, 41, -1,
- 62, 67, -1, 62, 55, -1, 3, 79, 81, -1,
- 4, 79, 31, -1, 64, 76, 74, -1, 80, -1,
- 65, 68, 66, -1, -1, 68, 41, -1, 68, 67,
- -1, 68, 55, -1, 6, 79, 31, -1, 9, 79,
- 31, -1, 70, 74, -1, 12, 31, -1, 72, 13,
- -1, -1, 74, 75, -1, 74, 31, -1, 74, 42,
- -1, 16, 25, 83, 31, -1, -1, 76, 77, -1,
- 76, 31, -1, 23, 82, -1, -1, 79, 82, -1,
- 26, -1, 27, -1, 5, 31, -1, 8, 31, -1,
- 15, 31, -1, 31, -1, 81, 31, -1, -1, 14,
- 83, -1, 84, -1, 84, 34, 84, -1, 84, 28,
- 84, -1, 30, 83, 29, -1, 35, 83, -1, 83,
- 32, 83, -1, 83, 33, 83, -1, 26, -1, 27,
- -1, -1, 26, -1
+ 22, -1, 20, -1, 23, -1, 35, -1, 65, -1,
+ 75, -1, 48, -1, 50, -1, 73, -1, 26, 1,
+ 35, -1, 1, 35, -1, 10, 26, 35, -1, 47,
+ 51, -1, 11, 26, 35, -1, 49, 51, -1, -1,
+ 51, 52, -1, 51, 53, -1, 51, 79, -1, 51,
+ 77, -1, 51, 46, -1, 51, 35, -1, 19, 82,
+ 35, -1, 18, 83, 86, 35, -1, 20, 87, 86,
+ 35, -1, 21, 26, 86, 35, -1, 22, 88, 88,
+ 86, 35, -1, 24, 54, 35, -1, -1, 54, 26,
+ 55, -1, -1, 38, 83, -1, 7, 89, 35, -1,
+ 56, 60, -1, 84, -1, 57, 62, 58, -1, -1,
+ 60, 61, -1, 60, 79, -1, 60, 77, -1, 60,
+ 35, -1, 60, 46, -1, 18, 83, 86, 35, -1,
+ 19, 82, 35, -1, 17, 35, -1, 20, 26, 86,
+ 35, -1, -1, 62, 45, -1, 14, 87, 85, -1,
+ 84, -1, 63, 66, 64, -1, -1, 66, 45, -1,
+ 66, 71, -1, 66, 59, -1, 3, 83, 85, -1,
+ 4, 83, 35, -1, 68, 80, 78, -1, 84, -1,
+ 69, 72, 70, -1, -1, 72, 45, -1, 72, 71,
+ -1, 72, 59, -1, 6, 83, 35, -1, 9, 83,
+ 35, -1, 74, 78, -1, 12, 35, -1, 76, 13,
+ -1, -1, 78, 79, -1, 78, 35, -1, 78, 46,
+ -1, 16, 25, 87, 35, -1, -1, 80, 81, -1,
+ 80, 35, -1, 23, 86, -1, -1, 83, 86, -1,
+ 26, -1, 27, -1, 5, 35, -1, 8, 35, -1,
+ 15, 35, -1, 35, -1, 85, 35, -1, -1, 14,
+ 87, -1, 88, -1, 88, 29, 88, -1, 88, 30,
+ 88, -1, 88, 31, 88, -1, 88, 32, 88, -1,
+ 88, 38, 88, -1, 88, 28, 88, -1, 34, 87,
+ 33, -1, 39, 87, -1, 87, 36, 87, -1, 87,
+ 37, 87, -1, 26, -1, 27, -1, -1, 26, -1
};
/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
static const yytype_uint16 yyrline[] =
{
- 0, 103, 103, 103, 105, 105, 107, 109, 110, 111,
- 112, 113, 114, 118, 122, 122, 122, 122, 122, 122,
- 122, 122, 126, 127, 128, 129, 130, 131, 135, 136,
- 142, 150, 156, 164, 174, 176, 177, 178, 179, 180,
- 181, 184, 192, 198, 208, 214, 220, 223, 225, 236,
- 237, 242, 251, 256, 264, 267, 269, 270, 271, 272,
- 273, 276, 282, 293, 299, 309, 311, 316, 324, 332,
- 335, 337, 338, 339, 344, 351, 358, 363, 371, 374,
- 376, 377, 378, 381, 389, 396, 403, 409, 416, 418,
- 419, 420, 423, 431, 433, 434, 437, 444, 446, 451,
- 452, 455, 456, 457, 461, 462, 465, 466, 469, 470,
- 471, 472, 473, 474, 475, 478, 479, 482, 483
+ 0, 108, 108, 108, 110, 110, 112, 114, 115, 116,
+ 117, 118, 119, 123, 127, 127, 127, 127, 127, 127,
+ 127, 127, 131, 132, 133, 134, 135, 136, 140, 141,
+ 147, 155, 161, 169, 179, 181, 182, 183, 184, 185,
+ 186, 189, 197, 203, 213, 219, 225, 228, 230, 241,
+ 242, 247, 256, 261, 269, 272, 274, 275, 276, 277,
+ 278, 281, 287, 298, 304, 314, 316, 321, 329, 337,
+ 340, 342, 343, 344, 349, 356, 363, 368, 376, 379,
+ 381, 382, 383, 386, 394, 401, 408, 414, 421, 423,
+ 424, 425, 428, 436, 438, 439, 442, 449, 451, 456,
+ 457, 460, 461, 462, 466, 467, 470, 471, 474, 475,
+ 476, 477, 478, 479, 480, 481, 482, 483, 484, 487,
+ 488, 491, 492
};
#endif
@@ -557,6 +573,7 @@
"T_MENUCONFIG", "T_HELP", "T_HELPTEXT", "T_IF", "T_ENDIF", "T_DEPENDS",
"T_OPTIONAL", "T_PROMPT", "T_TYPE", "T_DEFAULT", "T_SELECT", "T_RANGE",
"T_VISIBLE", "T_OPTION", "T_ON", "T_WORD", "T_WORD_QUOTE", "T_UNEQUAL",
+ "T_LESS", "T_LESS_EQUAL", "T_GREATER", "T_GREATER_EQUAL",
"T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND", "T_EQUAL",
"T_NOT", "$accept", "input", "start", "stmt_list", "option_name",
"common_stmt", "option_error", "config_entry_start", "config_stmt",
@@ -568,7 +585,7 @@
"menu_entry", "menu_end", "menu_stmt", "menu_block", "source_stmt",
"comment", "comment_stmt", "help_start", "help", "depends_list",
"depends", "visibility_list", "visible", "prompt_stmt_opt", "prompt",
- "end", "nl", "if_expr", "expr", "symbol", "word_opt", 0
+ "end", "nl", "if_expr", "expr", "symbol", "word_opt", YY_NULL
};
#endif
@@ -580,25 +597,26 @@
0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
- 285, 286, 287, 288, 289, 290
+ 285, 286, 287, 288, 289, 290, 291, 292, 293, 294
};
# endif
/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
static const yytype_uint8 yyr1[] =
{
- 0, 36, 37, 37, 38, 38, 39, 39, 39, 39,
- 39, 39, 39, 39, 40, 40, 40, 40, 40, 40,
- 40, 40, 41, 41, 41, 41, 41, 41, 42, 42,
- 43, 44, 45, 46, 47, 47, 47, 47, 47, 47,
- 47, 48, 48, 48, 48, 48, 49, 50, 50, 51,
- 51, 52, 53, 54, 55, 56, 56, 56, 56, 56,
- 56, 57, 57, 57, 57, 58, 58, 59, 60, 61,
- 62, 62, 62, 62, 63, 64, 65, 66, 67, 68,
- 68, 68, 68, 69, 70, 71, 72, 73, 74, 74,
- 74, 74, 75, 76, 76, 76, 77, 78, 78, 79,
- 79, 80, 80, 80, 81, 81, 82, 82, 83, 83,
- 83, 83, 83, 83, 83, 84, 84, 85, 85
+ 0, 40, 41, 41, 42, 42, 43, 43, 43, 43,
+ 43, 43, 43, 43, 44, 44, 44, 44, 44, 44,
+ 44, 44, 45, 45, 45, 45, 45, 45, 46, 46,
+ 47, 48, 49, 50, 51, 51, 51, 51, 51, 51,
+ 51, 52, 52, 52, 52, 52, 53, 54, 54, 55,
+ 55, 56, 57, 58, 59, 60, 60, 60, 60, 60,
+ 60, 61, 61, 61, 61, 62, 62, 63, 64, 65,
+ 66, 66, 66, 66, 67, 68, 69, 70, 71, 72,
+ 72, 72, 72, 73, 74, 75, 76, 77, 78, 78,
+ 78, 78, 79, 80, 80, 80, 81, 82, 82, 83,
+ 83, 84, 84, 84, 85, 85, 86, 86, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 88,
+ 88, 89, 89
};
/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
@@ -615,7 +633,8 @@
2, 2, 2, 3, 3, 2, 2, 2, 0, 2,
2, 2, 4, 0, 2, 2, 2, 0, 2, 1,
1, 2, 2, 2, 1, 2, 0, 2, 1, 3,
- 3, 3, 2, 3, 3, 1, 1, 0, 1
+ 3, 3, 3, 3, 3, 3, 2, 3, 3, 1,
+ 1, 0, 1
};
/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
@@ -624,72 +643,72 @@
static const yytype_uint8 yydefact[] =
{
6, 0, 104, 0, 3, 0, 6, 6, 99, 100,
- 0, 1, 0, 0, 0, 0, 117, 0, 0, 0,
+ 0, 1, 0, 0, 0, 0, 121, 0, 0, 0,
0, 0, 0, 14, 18, 15, 16, 20, 17, 19,
21, 0, 22, 0, 7, 34, 25, 34, 26, 55,
65, 8, 70, 23, 93, 79, 9, 27, 88, 24,
- 10, 0, 105, 2, 74, 13, 0, 101, 0, 118,
- 0, 102, 0, 0, 0, 115, 116, 0, 0, 0,
+ 10, 0, 105, 2, 74, 13, 0, 101, 0, 122,
+ 0, 102, 0, 0, 0, 119, 120, 0, 0, 0,
108, 103, 0, 0, 0, 0, 0, 0, 0, 88,
- 0, 0, 75, 83, 51, 84, 30, 32, 0, 112,
- 0, 0, 67, 0, 0, 11, 12, 0, 0, 0,
- 0, 97, 0, 0, 0, 47, 0, 40, 39, 35,
- 36, 0, 38, 37, 0, 0, 97, 0, 59, 60,
- 56, 58, 57, 66, 54, 53, 71, 73, 69, 72,
- 68, 106, 95, 0, 94, 80, 82, 78, 81, 77,
- 90, 91, 89, 111, 113, 114, 110, 109, 29, 86,
- 0, 106, 0, 106, 106, 106, 0, 0, 0, 87,
- 63, 106, 0, 106, 0, 96, 0, 0, 41, 98,
- 0, 0, 106, 49, 46, 28, 0, 62, 0, 107,
- 92, 42, 43, 44, 0, 0, 48, 61, 64, 45,
- 50
+ 0, 0, 75, 83, 51, 84, 30, 32, 0, 116,
+ 0, 0, 67, 0, 0, 0, 0, 0, 0, 11,
+ 12, 0, 0, 0, 0, 97, 0, 0, 0, 47,
+ 0, 40, 39, 35, 36, 0, 38, 37, 0, 0,
+ 97, 0, 59, 60, 56, 58, 57, 66, 54, 53,
+ 71, 73, 69, 72, 68, 106, 95, 0, 94, 80,
+ 82, 78, 81, 77, 90, 91, 89, 115, 117, 118,
+ 114, 109, 110, 111, 112, 113, 29, 86, 0, 106,
+ 0, 106, 106, 106, 0, 0, 0, 87, 63, 106,
+ 0, 106, 0, 96, 0, 0, 41, 98, 0, 0,
+ 106, 49, 46, 28, 0, 62, 0, 107, 92, 42,
+ 43, 44, 0, 0, 48, 61, 64, 45, 50
};
/* YYDEFGOTO[NTERM-NUM]. */
static const yytype_int16 yydefgoto[] =
{
- -1, 3, 4, 5, 33, 34, 108, 35, 36, 37,
- 38, 74, 109, 110, 157, 186, 39, 40, 124, 41,
- 76, 120, 77, 42, 128, 43, 78, 6, 44, 45,
- 137, 46, 80, 47, 48, 49, 111, 112, 81, 113,
- 79, 134, 152, 153, 50, 7, 165, 69, 70, 60
+ -1, 3, 4, 5, 33, 34, 112, 35, 36, 37,
+ 38, 74, 113, 114, 165, 194, 39, 40, 128, 41,
+ 76, 124, 77, 42, 132, 43, 78, 6, 44, 45,
+ 141, 46, 80, 47, 48, 49, 115, 116, 81, 117,
+ 79, 138, 160, 161, 50, 7, 173, 69, 70, 60
};
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
STATE-NUM. */
-#define YYPACT_NINF -90
+#define YYPACT_NINF -91
static const yytype_int16 yypact[] =
{
- 4, 42, -90, 96, -90, 111, -90, 15, -90, -90,
- 75, -90, 82, 42, 104, 42, 110, 107, 42, 115,
- 125, -4, 121, -90, -90, -90, -90, -90, -90, -90,
- -90, 162, -90, 163, -90, -90, -90, -90, -90, -90,
- -90, -90, -90, -90, -90, -90, -90, -90, -90, -90,
- -90, 139, -90, -90, 138, -90, 142, -90, 143, -90,
- 152, -90, 164, 167, 168, -90, -90, -4, -4, 77,
- -18, -90, 177, 185, 33, 71, 195, 247, 236, -2,
- 236, 171, -90, -90, -90, -90, -90, -90, 41, -90,
- -4, -4, 138, 97, 97, -90, -90, 186, 187, 194,
- 42, 42, -4, 196, 97, -90, 219, -90, -90, -90,
- -90, 210, -90, -90, 204, 42, 42, 199, -90, -90,
- -90, -90, -90, -90, -90, -90, -90, -90, -90, -90,
- -90, 222, -90, 223, -90, -90, -90, -90, -90, -90,
- -90, -90, -90, -90, 215, -90, -90, -90, -90, -90,
- -4, 222, 228, 222, -5, 222, 97, 35, 229, -90,
- -90, 222, 232, 222, -4, -90, 135, 233, -90, -90,
- 234, 235, 222, 240, -90, -90, 237, -90, 239, -13,
- -90, -90, -90, -90, 244, 42, -90, -90, -90, -90,
- -90
+ 19, 37, -91, 13, -91, 79, -91, 20, -91, -91,
+ -16, -91, 21, 37, 25, 37, 41, 36, 37, 78,
+ 83, 31, 56, -91, -91, -91, -91, -91, -91, -91,
+ -91, 116, -91, 127, -91, -91, -91, -91, -91, -91,
+ -91, -91, -91, -91, -91, -91, -91, -91, -91, -91,
+ -91, 147, -91, -91, 105, -91, 109, -91, 111, -91,
+ 114, -91, 136, 137, 142, -91, -91, 31, 31, 76,
+ 254, -91, 143, 146, 27, 115, 207, 258, 243, -14,
+ 243, 179, -91, -91, -91, -91, -91, -91, -7, -91,
+ 31, 31, 105, 51, 51, 51, 51, 51, 51, -91,
+ -91, 156, 168, 181, 37, 37, 31, 178, 51, -91,
+ 206, -91, -91, -91, -91, 196, -91, -91, 175, 37,
+ 37, 185, -91, -91, -91, -91, -91, -91, -91, -91,
+ -91, -91, -91, -91, -91, 214, -91, 230, -91, -91,
+ -91, -91, -91, -91, -91, -91, -91, -91, 183, -91,
+ -91, -91, -91, -91, -91, -91, -91, -91, 31, 214,
+ 194, 214, 45, 214, 51, 26, 195, -91, -91, 214,
+ 197, 214, 31, -91, 139, 208, -91, -91, 220, 224,
+ 214, 222, -91, -91, 226, -91, 227, 123, -91, -91,
+ -91, -91, 235, 37, -91, -91, -91, -91, -91
};
/* YYPGOTO[NTERM-NUM]. */
static const yytype_int16 yypgoto[] =
{
- -90, -90, 269, 271, -90, 23, -70, -90, -90, -90,
- -90, 243, -90, -90, -90, -90, -90, -90, -90, -48,
- -90, -90, -90, -90, -90, -90, -90, -90, -90, -90,
- -90, -20, -90, -90, -90, -90, -90, 206, 205, -68,
- -90, -90, 169, -1, 27, -7, 118, -66, -89, -90
+ -91, -91, 264, 268, -91, 30, -65, -91, -91, -91,
+ -91, 238, -91, -91, -91, -91, -91, -91, -91, -12,
+ -91, -91, -91, -91, -91, -91, -91, -91, -91, -91,
+ -91, -5, -91, -91, -91, -91, -91, 200, 209, -61,
+ -91, -91, 170, -1, 65, 0, 118, -66, -90, -91
};
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
@@ -698,102 +717,102 @@
#define YYTABLE_NINF -86
static const yytype_int16 yytable[] =
{
- 10, 88, 89, 54, 146, 147, 119, 1, 122, 164,
- 93, 141, 56, 142, 58, 156, 94, 62, 1, 90,
- 91, 131, 65, 66, 144, 145, 67, 90, 91, 132,
- 127, 68, 136, -31, 97, 2, 154, -31, -31, -31,
- -31, -31, -31, -31, -31, 98, 52, -31, -31, 99,
- -31, 100, 101, 102, 103, 104, -31, 105, 129, 106,
- 138, 173, 92, 141, 107, 142, 174, 172, 8, 9,
- 143, -33, 97, 90, 91, -33, -33, -33, -33, -33,
- -33, -33, -33, 98, 166, -33, -33, 99, -33, 100,
- 101, 102, 103, 104, -33, 105, 11, 106, 179, 151,
- 123, 126, 107, 135, 125, 130, 2, 139, 2, 90,
- 91, -5, 12, 55, 161, 13, 14, 15, 16, 17,
- 18, 19, 20, 65, 66, 21, 22, 23, 24, 25,
- 26, 27, 28, 29, 30, 57, 59, 31, 61, -4,
- 12, 63, 32, 13, 14, 15, 16, 17, 18, 19,
- 20, 64, 71, 21, 22, 23, 24, 25, 26, 27,
- 28, 29, 30, 72, 73, 31, 180, 90, 91, 52,
- 32, -85, 97, 82, 83, -85, -85, -85, -85, -85,
- -85, -85, -85, 84, 190, -85, -85, 99, -85, -85,
- -85, -85, -85, -85, -85, 85, 97, 106, 86, 87,
- -52, -52, 140, -52, -52, -52, -52, 98, 95, -52,
- -52, 99, 114, 115, 116, 117, 96, 148, 149, 150,
- 158, 106, 155, 159, 97, 163, 118, -76, -76, -76,
- -76, -76, -76, -76, -76, 160, 164, -76, -76, 99,
- 13, 14, 15, 16, 17, 18, 19, 20, 91, 106,
- 21, 22, 14, 15, 140, 17, 18, 19, 20, 168,
- 175, 21, 22, 177, 181, 182, 183, 32, 187, 167,
- 188, 169, 170, 171, 185, 189, 53, 51, 32, 176,
- 75, 178, 121, 0, 133, 162, 0, 0, 0, 0,
- 184
+ 10, 88, 89, 150, 151, 152, 153, 154, 155, 135,
+ 54, 123, 56, 11, 58, 126, 145, 62, 164, 2,
+ 146, 136, 1, 1, 148, 149, 147, -31, 101, 90,
+ 91, -31, -31, -31, -31, -31, -31, -31, -31, 102,
+ 162, -31, -31, 103, -31, 104, 105, 106, 107, 108,
+ -31, 109, 181, 110, 2, 52, 55, 65, 66, 172,
+ 57, 182, 111, 8, 9, 67, 131, 59, 140, 92,
+ 68, 61, 145, 133, 180, 142, 146, 65, 66, -5,
+ 12, 90, 91, 13, 14, 15, 16, 17, 18, 19,
+ 20, 71, 174, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 159, 63, 31, 187, 127, 130, 64,
+ 139, 2, 90, 91, 32, -33, 101, 72, 169, -33,
+ -33, -33, -33, -33, -33, -33, -33, 102, 73, -33,
+ -33, 103, -33, 104, 105, 106, 107, 108, -33, 109,
+ 52, 110, 129, 134, 82, 143, 83, -4, 12, 84,
+ 111, 13, 14, 15, 16, 17, 18, 19, 20, 90,
+ 91, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+ 30, 85, 86, 31, 188, 90, 91, 87, 99, -85,
+ 101, 100, 32, -85, -85, -85, -85, -85, -85, -85,
+ -85, 156, 198, -85, -85, 103, -85, -85, -85, -85,
+ -85, -85, -85, 157, 163, 110, 158, 166, 101, 167,
+ 168, 171, -52, -52, 144, -52, -52, -52, -52, 102,
+ 91, -52, -52, 103, 118, 119, 120, 121, 172, 176,
+ 183, 101, 185, 110, -76, -76, -76, -76, -76, -76,
+ -76, -76, 122, 189, -76, -76, 103, 13, 14, 15,
+ 16, 17, 18, 19, 20, 190, 110, 21, 22, 191,
+ 193, 195, 196, 14, 15, 144, 17, 18, 19, 20,
+ 197, 53, 21, 22, 51, 75, 125, 175, 32, 177,
+ 178, 179, 93, 94, 95, 96, 97, 184, 137, 186,
+ 170, 0, 98, 32, 0, 0, 0, 0, 192
};
#define yypact_value_is_default(yystate) \
- ((yystate) == (-90))
+ ((yystate) == (-91))
#define yytable_value_is_error(yytable_value) \
YYID (0)
static const yytype_int16 yycheck[] =
{
- 1, 67, 68, 10, 93, 94, 76, 3, 76, 14,
- 28, 81, 13, 81, 15, 104, 34, 18, 3, 32,
- 33, 23, 26, 27, 90, 91, 30, 32, 33, 31,
- 78, 35, 80, 0, 1, 31, 102, 4, 5, 6,
- 7, 8, 9, 10, 11, 12, 31, 14, 15, 16,
- 17, 18, 19, 20, 21, 22, 23, 24, 78, 26,
- 80, 26, 69, 133, 31, 133, 31, 156, 26, 27,
- 29, 0, 1, 32, 33, 4, 5, 6, 7, 8,
- 9, 10, 11, 12, 150, 14, 15, 16, 17, 18,
- 19, 20, 21, 22, 23, 24, 0, 26, 164, 100,
- 77, 78, 31, 80, 77, 78, 31, 80, 31, 32,
- 33, 0, 1, 31, 115, 4, 5, 6, 7, 8,
- 9, 10, 11, 26, 27, 14, 15, 16, 17, 18,
- 19, 20, 21, 22, 23, 31, 26, 26, 31, 0,
- 1, 26, 31, 4, 5, 6, 7, 8, 9, 10,
- 11, 26, 31, 14, 15, 16, 17, 18, 19, 20,
- 21, 22, 23, 1, 1, 26, 31, 32, 33, 31,
- 31, 0, 1, 31, 31, 4, 5, 6, 7, 8,
- 9, 10, 11, 31, 185, 14, 15, 16, 17, 18,
- 19, 20, 21, 22, 23, 31, 1, 26, 31, 31,
- 5, 6, 31, 8, 9, 10, 11, 12, 31, 14,
- 15, 16, 17, 18, 19, 20, 31, 31, 31, 25,
- 1, 26, 26, 13, 1, 26, 31, 4, 5, 6,
- 7, 8, 9, 10, 11, 31, 14, 14, 15, 16,
- 4, 5, 6, 7, 8, 9, 10, 11, 33, 26,
- 14, 15, 5, 6, 31, 8, 9, 10, 11, 31,
- 31, 14, 15, 31, 31, 31, 31, 31, 31, 151,
- 31, 153, 154, 155, 34, 31, 7, 6, 31, 161,
- 37, 163, 76, -1, 79, 116, -1, -1, -1, -1,
- 172
+ 1, 67, 68, 93, 94, 95, 96, 97, 98, 23,
+ 10, 76, 13, 0, 15, 76, 81, 18, 108, 35,
+ 81, 35, 3, 3, 90, 91, 33, 0, 1, 36,
+ 37, 4, 5, 6, 7, 8, 9, 10, 11, 12,
+ 106, 14, 15, 16, 17, 18, 19, 20, 21, 22,
+ 23, 24, 26, 26, 35, 35, 35, 26, 27, 14,
+ 35, 35, 35, 26, 27, 34, 78, 26, 80, 69,
+ 39, 35, 137, 78, 164, 80, 137, 26, 27, 0,
+ 1, 36, 37, 4, 5, 6, 7, 8, 9, 10,
+ 11, 35, 158, 14, 15, 16, 17, 18, 19, 20,
+ 21, 22, 23, 104, 26, 26, 172, 77, 78, 26,
+ 80, 35, 36, 37, 35, 0, 1, 1, 119, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 1, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 35, 26, 77, 78, 35, 80, 35, 0, 1, 35,
+ 35, 4, 5, 6, 7, 8, 9, 10, 11, 36,
+ 37, 14, 15, 16, 17, 18, 19, 20, 21, 22,
+ 23, 35, 35, 26, 35, 36, 37, 35, 35, 0,
+ 1, 35, 35, 4, 5, 6, 7, 8, 9, 10,
+ 11, 35, 193, 14, 15, 16, 17, 18, 19, 20,
+ 21, 22, 23, 35, 26, 26, 25, 1, 1, 13,
+ 35, 26, 5, 6, 35, 8, 9, 10, 11, 12,
+ 37, 14, 15, 16, 17, 18, 19, 20, 14, 35,
+ 35, 1, 35, 26, 4, 5, 6, 7, 8, 9,
+ 10, 11, 35, 35, 14, 15, 16, 4, 5, 6,
+ 7, 8, 9, 10, 11, 35, 26, 14, 15, 35,
+ 38, 35, 35, 5, 6, 35, 8, 9, 10, 11,
+ 35, 7, 14, 15, 6, 37, 76, 159, 35, 161,
+ 162, 163, 28, 29, 30, 31, 32, 169, 79, 171,
+ 120, -1, 38, 35, -1, -1, -1, -1, 180
};
/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
symbol of state STATE-NUM. */
static const yytype_uint8 yystos[] =
{
- 0, 3, 31, 37, 38, 39, 63, 81, 26, 27,
- 79, 0, 1, 4, 5, 6, 7, 8, 9, 10,
+ 0, 3, 35, 41, 42, 43, 67, 85, 26, 27,
+ 83, 0, 1, 4, 5, 6, 7, 8, 9, 10,
11, 14, 15, 16, 17, 18, 19, 20, 21, 22,
- 23, 26, 31, 40, 41, 43, 44, 45, 46, 52,
- 53, 55, 59, 61, 64, 65, 67, 69, 70, 71,
- 80, 39, 31, 38, 81, 31, 79, 31, 79, 26,
- 85, 31, 79, 26, 26, 26, 27, 30, 35, 83,
- 84, 31, 1, 1, 47, 47, 56, 58, 62, 76,
- 68, 74, 31, 31, 31, 31, 31, 31, 83, 83,
- 32, 33, 81, 28, 34, 31, 31, 1, 12, 16,
- 18, 19, 20, 21, 22, 24, 26, 31, 42, 48,
- 49, 72, 73, 75, 17, 18, 19, 20, 31, 42,
- 57, 73, 75, 41, 54, 80, 41, 55, 60, 67,
- 80, 23, 31, 74, 77, 41, 55, 66, 67, 80,
- 31, 42, 75, 29, 83, 83, 84, 84, 31, 31,
- 25, 79, 78, 79, 83, 26, 84, 50, 1, 13,
- 31, 79, 78, 26, 14, 82, 83, 82, 31, 82,
- 82, 82, 84, 26, 31, 31, 82, 31, 82, 83,
- 31, 31, 31, 31, 82, 34, 51, 31, 31, 31,
- 79
+ 23, 26, 35, 44, 45, 47, 48, 49, 50, 56,
+ 57, 59, 63, 65, 68, 69, 71, 73, 74, 75,
+ 84, 43, 35, 42, 85, 35, 83, 35, 83, 26,
+ 89, 35, 83, 26, 26, 26, 27, 34, 39, 87,
+ 88, 35, 1, 1, 51, 51, 60, 62, 66, 80,
+ 72, 78, 35, 35, 35, 35, 35, 35, 87, 87,
+ 36, 37, 85, 28, 29, 30, 31, 32, 38, 35,
+ 35, 1, 12, 16, 18, 19, 20, 21, 22, 24,
+ 26, 35, 46, 52, 53, 76, 77, 79, 17, 18,
+ 19, 20, 35, 46, 61, 77, 79, 45, 58, 84,
+ 45, 59, 64, 71, 84, 23, 35, 78, 81, 45,
+ 59, 70, 71, 84, 35, 46, 79, 33, 87, 87,
+ 88, 88, 88, 88, 88, 88, 35, 35, 25, 83,
+ 82, 83, 87, 26, 88, 54, 1, 13, 35, 83,
+ 82, 26, 14, 86, 87, 86, 35, 86, 86, 86,
+ 88, 26, 35, 35, 86, 35, 86, 87, 35, 35,
+ 35, 35, 86, 38, 55, 35, 35, 35, 83
};
#define yyerrok (yyerrstatus = 0)
@@ -823,17 +842,18 @@
#define YYRECOVERING() (!!yyerrstatus)
-#define YYBACKUP(Token, Value) \
-do \
- if (yychar == YYEMPTY && yylen == 1) \
- { \
- yychar = (Token); \
- yylval = (Value); \
- YYPOPSTACK (1); \
- goto yybackup; \
- } \
- else \
- { \
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ YYPOPSTACK (yylen); \
+ yystate = *yyssp; \
+ goto yybackup; \
+ } \
+ else \
+ { \
yyerror (YY_("syntax error: cannot back up")); \
YYERROR; \
} \
@@ -928,6 +948,8 @@
YYSTYPE const * const yyvaluep;
#endif
{
+ FILE *yyo = yyoutput;
+ YYUSE (yyo);
if (!yyvaluep)
return;
# ifdef YYPRINT
@@ -1179,12 +1201,12 @@
yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
yytype_int16 *yyssp, int yytoken)
{
- YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]);
+ YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]);
YYSIZE_T yysize = yysize0;
YYSIZE_T yysize1;
enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
/* Internationalized format string. */
- const char *yyformat = 0;
+ const char *yyformat = YY_NULL;
/* Arguments of yyformat. */
char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
/* Number of reported tokens (one for the "unexpected", one per
@@ -1244,7 +1266,7 @@
break;
}
yyarg[yycount++] = yytname[yyx];
- yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]);
if (! (yysize <= yysize1
&& yysize1 <= YYSTACK_ALLOC_MAXIMUM))
return 2;
@@ -1329,7 +1351,7 @@
switch (yytype)
{
- case 53: /* "choice_entry" */
+ case 57: /* "choice_entry" */
{
fprintf(stderr, "%s:%d: missing end statement for this entry\n",
@@ -1339,7 +1361,7 @@
};
break;
- case 59: /* "if_entry" */
+ case 63: /* "if_entry" */
{
fprintf(stderr, "%s:%d: missing end statement for this entry\n",
@@ -1349,7 +1371,7 @@
};
break;
- case 65: /* "menu_entry" */
+ case 69: /* "menu_entry" */
{
fprintf(stderr, "%s:%d: missing end statement for this entry\n",
@@ -1426,7 +1448,7 @@
`yyss': related to states.
`yyvs': related to semantic values.
- Refer to the stacks thru separate pointers, to allow yyoverflow
+ Refer to the stacks through separate pointers, to allow yyoverflow
to reallocate them elsewhere. */
/* The state stack. */
@@ -2012,46 +2034,66 @@
case 109:
- { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
+ { (yyval.expr) = expr_alloc_comp(E_LTH, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 110:
- { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
+ { (yyval.expr) = expr_alloc_comp(E_LEQ, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 111:
- { (yyval.expr) = (yyvsp[(2) - (3)].expr); }
+ { (yyval.expr) = expr_alloc_comp(E_GTH, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 112:
- { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[(2) - (2)].expr)); }
+ { (yyval.expr) = expr_alloc_comp(E_GEQ, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 113:
- { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); }
+ { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 114:
- { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); }
+ { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); }
break;
case 115:
- { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), 0); free((yyvsp[(1) - (1)].string)); }
+ { (yyval.expr) = (yyvsp[(2) - (3)].expr); }
break;
case 116:
- { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), SYMBOL_CONST); free((yyvsp[(1) - (1)].string)); }
+ { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[(2) - (2)].expr)); }
break;
case 117:
+ { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); }
+ break;
+
+ case 118:
+
+ { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); }
+ break;
+
+ case 119:
+
+ { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), 0); free((yyvsp[(1) - (1)].string)); }
+ break;
+
+ case 120:
+
+ { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), SYMBOL_CONST); free((yyvsp[(1) - (1)].string)); }
+ break;
+
+ case 121:
+
{ (yyval.string) = NULL; }
break;
@@ -2243,7 +2285,7 @@
yyresult = 1;
goto yyreturn;
-#if !defined(yyoverflow) || YYERROR_VERBOSE
+#if !defined yyoverflow || YYERROR_VERBOSE
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here. |
`-------------------------------------------------*/
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 0f683cf..71bf8bf 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -69,6 +69,10 @@
%token <string> T_WORD
%token <string> T_WORD_QUOTE
%token T_UNEQUAL
+%token T_LESS
+%token T_LESS_EQUAL
+%token T_GREATER
+%token T_GREATER_EQUAL
%token T_CLOSE_PAREN
%token T_OPEN_PAREN
%token T_EOL
@@ -76,6 +80,7 @@
%left T_OR
%left T_AND
%left T_EQUAL T_UNEQUAL
+%left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
%nonassoc T_NOT
%type <string> prompt
@@ -467,6 +472,10 @@
;
expr: symbol { $$ = expr_alloc_symbol($1); }
+ | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
+ | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
+ | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
+ | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
| symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
| symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
| T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 86a4fe7..1a10d8a 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -82,7 +82,7 @@
kallsymopt="${kallsymopt} --all-symbols"
fi
- if [ -n "${CONFIG_ARM}" ] && [ -n "${CONFIG_PAGE_OFFSET}" ]; then
+ if [ -n "${CONFIG_ARM}" ] && [ -z "${CONFIG_XIP_KERNEL}" ] && [ -n "${CONFIG_PAGE_OFFSET}" ]; then
kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
fi
@@ -111,7 +111,6 @@
}
# Delete output files in case of error
-trap cleanup SIGHUP SIGINT SIGQUIT SIGTERM ERR
cleanup()
{
rm -f .old_version
@@ -124,6 +123,20 @@
rm -f vmlinux.o
}
+on_exit()
+{
+ if [ $? -ne 0 ]; then
+ cleanup
+ fi
+}
+trap on_exit EXIT
+
+on_signals()
+{
+ exit 1
+}
+trap on_signals HUP INT QUIT TERM
+
#
#
# Use "make V=1" to debug this script
@@ -231,7 +244,6 @@
if ! cmp -s System.map .tmp_System.map; then
echo >&2 Inconsistent kallsyms data
echo >&2 Try "make KALLSYMS_EXTRA_PASS=1" as a workaround
- cleanup
exit 1
fi
fi
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index eff7de1..e70fcd1 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -63,6 +63,8 @@
DEVID(acpi_device_id);
DEVID_FIELD(acpi_device_id, id);
+ DEVID_FIELD(acpi_device_id, cls);
+ DEVID_FIELD(acpi_device_id, cls_msk);
DEVID(pnp_device_id);
DEVID_FIELD(pnp_device_id, id);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 84c86f3..5f20882 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -523,12 +523,40 @@
}
ADD_TO_DEVTABLE("serio", serio_device_id, do_serio_entry);
-/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
+/* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
+ * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
+ *
+ * NOTE: Each driver should use one of the following : _HID, _CIDs
+ * or _CLS. Also, bb, ss, and pp can be substituted with ??
+ * as don't care byte.
+ */
static int do_acpi_entry(const char *filename,
void *symval, char *alias)
{
DEF_FIELD_ADDR(symval, acpi_device_id, id);
- sprintf(alias, "acpi*:%s:*", *id);
+ DEF_FIELD_ADDR(symval, acpi_device_id, cls);
+ DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
+
+ if (id && strlen((const char *)*id))
+ sprintf(alias, "acpi*:%s:*", *id);
+ else if (cls) {
+ int i, byte_shift, cnt = 0;
+ unsigned int msk;
+
+ sprintf(&alias[cnt], "acpi*:");
+ cnt = 6;
+ for (i = 1; i <= 3; i++) {
+ byte_shift = 8 * (3-i);
+ msk = (*cls_msk >> byte_shift) & 0xFF;
+ if (msk)
+ sprintf(&alias[cnt], "%02x",
+ (*cls >> byte_shift) & 0xFF);
+ else
+ sprintf(&alias[cnt], "??");
+ cnt += 2;
+ }
+ sprintf(&alias[cnt], ":*");
+ }
return 1;
}
ADD_TO_DEVTABLE("acpi", acpi_device_id, do_acpi_entry);
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 91ee1b2..12d3db3 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -886,7 +886,8 @@
#define TEXT_SECTIONS ".text", ".text.unlikely", ".sched.text", \
".kprobes.text"
#define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \
- ".fixup", ".entry.text", ".exception.text", ".text.*"
+ ".fixup", ".entry.text", ".exception.text", ".text.*", \
+ ".coldtext"
#define INIT_SECTIONS ".init.*"
#define MEM_INIT_SECTIONS ".meminit.*"
diff --git a/security/inode.c b/security/inode.c
index 91503b7..16622ae 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -25,11 +25,6 @@
static struct vfsmount *mount;
static int mount_count;
-static inline int positive(struct dentry *dentry)
-{
- return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
static int fill_super(struct super_block *sb, void *data, int silent)
{
static struct tree_descr files[] = {{""}};
@@ -201,33 +196,29 @@
return;
mutex_lock(&d_inode(parent)->i_mutex);
- if (positive(dentry)) {
- if (d_really_is_positive(dentry)) {
- if (d_is_dir(dentry))
- simple_rmdir(d_inode(parent), dentry);
- else
- simple_unlink(d_inode(parent), dentry);
- dput(dentry);
- }
+ if (simple_positive(dentry)) {
+ if (d_is_dir(dentry))
+ simple_rmdir(d_inode(parent), dentry);
+ else
+ simple_unlink(d_inode(parent), dentry);
+ dput(dentry);
}
mutex_unlock(&d_inode(parent)->i_mutex);
simple_release_fs(&mount, &mount_count);
}
EXPORT_SYMBOL_GPL(securityfs_remove);
-static struct kobject *security_kobj;
-
static int __init securityfs_init(void)
{
int retval;
- security_kobj = kobject_create_and_add("security", kernel_kobj);
- if (!security_kobj)
- return -EINVAL;
+ retval = sysfs_create_mount_point(kernel_kobj, "security");
+ if (retval)
+ return retval;
retval = register_filesystem(&fs_type);
if (retval)
- kobject_put(security_kobj);
+ sysfs_remove_mount_point(kernel_kobj, "security");
return retval;
}
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 6231081..564079c 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3283,7 +3283,8 @@
int rc = 0;
if (default_noexec &&
- (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
+ (prot & PROT_EXEC) && (!file || IS_PRIVATE(file_inode(file)) ||
+ (!shared && (prot & PROT_WRITE)))) {
/*
* We are making executable an anonymous mapping or a
* private file mapping that will also be writable.
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index d2787cca..3d22014 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1853,7 +1853,6 @@
};
struct vfsmount *selinuxfs_mount;
-static struct kobject *selinuxfs_kobj;
static int __init init_sel_fs(void)
{
@@ -1862,13 +1861,13 @@
if (!selinux_enabled)
return 0;
- selinuxfs_kobj = kobject_create_and_add("selinux", fs_kobj);
- if (!selinuxfs_kobj)
- return -ENOMEM;
+ err = sysfs_create_mount_point(fs_kobj, "selinux");
+ if (err)
+ return err;
err = register_filesystem(&sel_fs_type);
if (err) {
- kobject_put(selinuxfs_kobj);
+ sysfs_remove_mount_point(fs_kobj, "selinux");
return err;
}
@@ -1887,7 +1886,7 @@
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
void exit_sel_fs(void)
{
- kobject_put(selinuxfs_kobj);
+ sysfs_remove_mount_point(fs_kobj, "selinux");
kern_unmount(selinuxfs_mount);
unregister_filesystem(&sel_fs_type);
}
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index afe6a26..57644b1 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -153,6 +153,12 @@
if (offset == (u32)-1)
return 0;
+ /* don't waste ebitmap space if the netlabel bitmap is empty */
+ if (bitmap == 0) {
+ offset += EBITMAP_UNIT_SIZE;
+ continue;
+ }
+
if (e_iter == NULL ||
offset >= e_iter->startbit + EBITMAP_SIZE) {
e_prev = e_iter;
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 5e0a64e..2716d02 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -2314,16 +2314,16 @@
.llseek = generic_file_llseek,
};
-static struct kset *smackfs_kset;
/**
* smk_init_sysfs - initialize /sys/fs/smackfs
*
*/
static int smk_init_sysfs(void)
{
- smackfs_kset = kset_create_and_add("smackfs", NULL, fs_kobj);
- if (!smackfs_kset)
- return -ENOMEM;
+ int err;
+ err = sysfs_create_mount_point(fs_kobj, "smackfs");
+ if (err)
+ return err;
return 0;
}
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index a51244a..faca2bf 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -25,7 +25,7 @@
include $(build-dir)/Build.include
# do not force detected configuration
--include .config-detected
+-include $(OUTPUT).config-detected
# Init all relevant variables used in build files so
# 1) they have correct type
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index f0e7267..9098083 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -41,4 +41,62 @@
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#include <linux/types.h>
+
+static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
+{
+ switch (size) {
+ case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
+ case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
+ case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
+ case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
+ default:
+ barrier();
+ __builtin_memcpy((void *)res, (const void *)p, size);
+ barrier();
+ }
+}
+
+static __always_inline void __write_once_size(volatile void *p, void *res, int size)
+{
+ switch (size) {
+ case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
+ case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
+ case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
+ case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
+ default:
+ barrier();
+ __builtin_memcpy((void *)p, (const void *)res, size);
+ barrier();
+ }
+}
+
+/*
+ * Prevent the compiler from merging or refetching reads or writes. The
+ * compiler is also forbidden from reordering successive instances of
+ * READ_ONCE, WRITE_ONCE and ACCESS_ONCE (see below), but only when the
+ * compiler is aware of some particular ordering. One way to make the
+ * compiler aware of ordering is to put the two invocations of READ_ONCE,
+ * WRITE_ONCE or ACCESS_ONCE() in different C statements.
+ *
+ * In contrast to ACCESS_ONCE these two macros will also work on aggregate
+ * data types like structs or unions. If the size of the accessed data
+ * type exceeds the word size of the machine (e.g., 32 bits or 64 bits)
+ * READ_ONCE() and WRITE_ONCE() will fall back to memcpy and print a
+ * compile-time warning.
+ *
+ * Their two major use cases are: (1) Mediating communication between
+ * process-level code and irq/NMI handlers, all running on the same CPU,
+ * and (2) Ensuring that the compiler does not fold, spindle, or otherwise
+ * mutilate accesses that either do not require ordering or that interact
+ * with an explicit memory barrier or atomic instruction that provides the
+ * required ordering.
+ */
+
+#define READ_ONCE(x) \
+ ({ union { typeof(x) __val; char __c[1]; } __u; __read_once_size(&(x), __u.__c, sizeof(x)); __u.__val; })
+
+#define WRITE_ONCE(x, val) \
+ ({ union { typeof(x) __val; char __c[1]; } __u = { .__val = (val) }; __write_once_size(&(x), __u.__c, sizeof(x)); __u.__val; })
+
#endif /* _TOOLS_LINUX_COMPILER_H */
diff --git a/tools/include/linux/export.h b/tools/include/linux/export.h
deleted file mode 100644
index d07e586..0000000
--- a/tools/include/linux/export.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _TOOLS_LINUX_EXPORT_H_
-#define _TOOLS_LINUX_EXPORT_H_
-
-#define EXPORT_SYMBOL(sym)
-#define EXPORT_SYMBOL_GPL(sym)
-#define EXPORT_SYMBOL_GPL_FUTURE(sym)
-#define EXPORT_UNUSED_SYMBOL(sym)
-#define EXPORT_UNUSED_SYMBOL_GPL(sym)
-
-#endif
diff --git a/tools/include/linux/rbtree.h b/tools/include/linux/rbtree.h
new file mode 100644
index 0000000..1125822
--- /dev/null
+++ b/tools/include/linux/rbtree.h
@@ -0,0 +1,104 @@
+/*
+ Red Black Trees
+ (C) 1999 Andrea Arcangeli <andrea@suse.de>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ linux/include/linux/rbtree.h
+
+ To use rbtrees you'll have to implement your own insert and search cores.
+ This will avoid us to use callbacks and to drop drammatically performances.
+ I know it's not the cleaner way, but in C (not in C++) to get
+ performances and genericity...
+
+ See Documentation/rbtree.txt for documentation and samples.
+*/
+
+#ifndef __TOOLS_LINUX_PERF_RBTREE_H
+#define __TOOLS_LINUX_PERF_RBTREE_H
+
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+
+struct rb_node {
+ unsigned long __rb_parent_color;
+ struct rb_node *rb_right;
+ struct rb_node *rb_left;
+} __attribute__((aligned(sizeof(long))));
+ /* The alignment might seem pointless, but allegedly CRIS needs it */
+
+struct rb_root {
+ struct rb_node *rb_node;
+};
+
+
+#define rb_parent(r) ((struct rb_node *)((r)->__rb_parent_color & ~3))
+
+#define RB_ROOT (struct rb_root) { NULL, }
+#define rb_entry(ptr, type, member) container_of(ptr, type, member)
+
+#define RB_EMPTY_ROOT(root) ((root)->rb_node == NULL)
+
+/* 'empty' nodes are nodes that are known not to be inserted in an rbtree */
+#define RB_EMPTY_NODE(node) \
+ ((node)->__rb_parent_color == (unsigned long)(node))
+#define RB_CLEAR_NODE(node) \
+ ((node)->__rb_parent_color = (unsigned long)(node))
+
+
+extern void rb_insert_color(struct rb_node *, struct rb_root *);
+extern void rb_erase(struct rb_node *, struct rb_root *);
+
+
+/* Find logical next and previous nodes in a tree */
+extern struct rb_node *rb_next(const struct rb_node *);
+extern struct rb_node *rb_prev(const struct rb_node *);
+extern struct rb_node *rb_first(const struct rb_root *);
+extern struct rb_node *rb_last(const struct rb_root *);
+
+/* Postorder iteration - always visit the parent after its children */
+extern struct rb_node *rb_first_postorder(const struct rb_root *);
+extern struct rb_node *rb_next_postorder(const struct rb_node *);
+
+/* Fast replacement of a single node without remove/rebalance/add/rebalance */
+extern void rb_replace_node(struct rb_node *victim, struct rb_node *new,
+ struct rb_root *root);
+
+static inline void rb_link_node(struct rb_node *node, struct rb_node *parent,
+ struct rb_node **rb_link)
+{
+ node->__rb_parent_color = (unsigned long)parent;
+ node->rb_left = node->rb_right = NULL;
+
+ *rb_link = node;
+}
+
+#define rb_entry_safe(ptr, type, member) \
+ ({ typeof(ptr) ____ptr = (ptr); \
+ ____ptr ? rb_entry(____ptr, type, member) : NULL; \
+ })
+
+
+/*
+ * Handy for checking that we are not deleting an entry that is
+ * already in a list, found in block/{blk-throttle,cfq-iosched}.c,
+ * probably should be moved to lib/rbtree.c...
+ */
+static inline void rb_erase_init(struct rb_node *n, struct rb_root *root)
+{
+ rb_erase(n, root);
+ RB_CLEAR_NODE(n);
+}
+#endif /* __TOOLS_LINUX_PERF_RBTREE_H */
diff --git a/tools/include/linux/rbtree_augmented.h b/tools/include/linux/rbtree_augmented.h
new file mode 100644
index 0000000..43be941
--- /dev/null
+++ b/tools/include/linux/rbtree_augmented.h
@@ -0,0 +1,245 @@
+/*
+ Red Black Trees
+ (C) 1999 Andrea Arcangeli <andrea@suse.de>
+ (C) 2002 David Woodhouse <dwmw2@infradead.org>
+ (C) 2012 Michel Lespinasse <walken@google.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ tools/linux/include/linux/rbtree_augmented.h
+
+ Copied from:
+ linux/include/linux/rbtree_augmented.h
+*/
+
+#ifndef _TOOLS_LINUX_RBTREE_AUGMENTED_H
+#define _TOOLS_LINUX_RBTREE_AUGMENTED_H
+
+#include <linux/compiler.h>
+#include <linux/rbtree.h>
+
+/*
+ * Please note - only struct rb_augment_callbacks and the prototypes for
+ * rb_insert_augmented() and rb_erase_augmented() are intended to be public.
+ * The rest are implementation details you are not expected to depend on.
+ *
+ * See Documentation/rbtree.txt for documentation and samples.
+ */
+
+struct rb_augment_callbacks {
+ void (*propagate)(struct rb_node *node, struct rb_node *stop);
+ void (*copy)(struct rb_node *old, struct rb_node *new);
+ void (*rotate)(struct rb_node *old, struct rb_node *new);
+};
+
+extern void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
+/*
+ * Fixup the rbtree and update the augmented information when rebalancing.
+ *
+ * On insertion, the user must update the augmented information on the path
+ * leading to the inserted node, then call rb_link_node() as usual and
+ * rb_augment_inserted() instead of the usual rb_insert_color() call.
+ * If rb_augment_inserted() rebalances the rbtree, it will callback into
+ * a user provided function to update the augmented information on the
+ * affected subtrees.
+ */
+static inline void
+rb_insert_augmented(struct rb_node *node, struct rb_root *root,
+ const struct rb_augment_callbacks *augment)
+{
+ __rb_insert_augmented(node, root, augment->rotate);
+}
+
+#define RB_DECLARE_CALLBACKS(rbstatic, rbname, rbstruct, rbfield, \
+ rbtype, rbaugmented, rbcompute) \
+static inline void \
+rbname ## _propagate(struct rb_node *rb, struct rb_node *stop) \
+{ \
+ while (rb != stop) { \
+ rbstruct *node = rb_entry(rb, rbstruct, rbfield); \
+ rbtype augmented = rbcompute(node); \
+ if (node->rbaugmented == augmented) \
+ break; \
+ node->rbaugmented = augmented; \
+ rb = rb_parent(&node->rbfield); \
+ } \
+} \
+static inline void \
+rbname ## _copy(struct rb_node *rb_old, struct rb_node *rb_new) \
+{ \
+ rbstruct *old = rb_entry(rb_old, rbstruct, rbfield); \
+ rbstruct *new = rb_entry(rb_new, rbstruct, rbfield); \
+ new->rbaugmented = old->rbaugmented; \
+} \
+static void \
+rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new) \
+{ \
+ rbstruct *old = rb_entry(rb_old, rbstruct, rbfield); \
+ rbstruct *new = rb_entry(rb_new, rbstruct, rbfield); \
+ new->rbaugmented = old->rbaugmented; \
+ old->rbaugmented = rbcompute(old); \
+} \
+rbstatic const struct rb_augment_callbacks rbname = { \
+ rbname ## _propagate, rbname ## _copy, rbname ## _rotate \
+};
+
+
+#define RB_RED 0
+#define RB_BLACK 1
+
+#define __rb_parent(pc) ((struct rb_node *)(pc & ~3))
+
+#define __rb_color(pc) ((pc) & 1)
+#define __rb_is_black(pc) __rb_color(pc)
+#define __rb_is_red(pc) (!__rb_color(pc))
+#define rb_color(rb) __rb_color((rb)->__rb_parent_color)
+#define rb_is_red(rb) __rb_is_red((rb)->__rb_parent_color)
+#define rb_is_black(rb) __rb_is_black((rb)->__rb_parent_color)
+
+static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p)
+{
+ rb->__rb_parent_color = rb_color(rb) | (unsigned long)p;
+}
+
+static inline void rb_set_parent_color(struct rb_node *rb,
+ struct rb_node *p, int color)
+{
+ rb->__rb_parent_color = (unsigned long)p | color;
+}
+
+static inline void
+__rb_change_child(struct rb_node *old, struct rb_node *new,
+ struct rb_node *parent, struct rb_root *root)
+{
+ if (parent) {
+ if (parent->rb_left == old)
+ parent->rb_left = new;
+ else
+ parent->rb_right = new;
+ } else
+ root->rb_node = new;
+}
+
+extern void __rb_erase_color(struct rb_node *parent, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
+
+static __always_inline struct rb_node *
+__rb_erase_augmented(struct rb_node *node, struct rb_root *root,
+ const struct rb_augment_callbacks *augment)
+{
+ struct rb_node *child = node->rb_right, *tmp = node->rb_left;
+ struct rb_node *parent, *rebalance;
+ unsigned long pc;
+
+ if (!tmp) {
+ /*
+ * Case 1: node to erase has no more than 1 child (easy!)
+ *
+ * Note that if there is one child it must be red due to 5)
+ * and node must be black due to 4). We adjust colors locally
+ * so as to bypass __rb_erase_color() later on.
+ */
+ pc = node->__rb_parent_color;
+ parent = __rb_parent(pc);
+ __rb_change_child(node, child, parent, root);
+ if (child) {
+ child->__rb_parent_color = pc;
+ rebalance = NULL;
+ } else
+ rebalance = __rb_is_black(pc) ? parent : NULL;
+ tmp = parent;
+ } else if (!child) {
+ /* Still case 1, but this time the child is node->rb_left */
+ tmp->__rb_parent_color = pc = node->__rb_parent_color;
+ parent = __rb_parent(pc);
+ __rb_change_child(node, tmp, parent, root);
+ rebalance = NULL;
+ tmp = parent;
+ } else {
+ struct rb_node *successor = child, *child2;
+ tmp = child->rb_left;
+ if (!tmp) {
+ /*
+ * Case 2: node's successor is its right child
+ *
+ * (n) (s)
+ * / \ / \
+ * (x) (s) -> (x) (c)
+ * \
+ * (c)
+ */
+ parent = successor;
+ child2 = successor->rb_right;
+ augment->copy(node, successor);
+ } else {
+ /*
+ * Case 3: node's successor is leftmost under
+ * node's right child subtree
+ *
+ * (n) (s)
+ * / \ / \
+ * (x) (y) -> (x) (y)
+ * / /
+ * (p) (p)
+ * / /
+ * (s) (c)
+ * \
+ * (c)
+ */
+ do {
+ parent = successor;
+ successor = tmp;
+ tmp = tmp->rb_left;
+ } while (tmp);
+ parent->rb_left = child2 = successor->rb_right;
+ successor->rb_right = child;
+ rb_set_parent(child, successor);
+ augment->copy(node, successor);
+ augment->propagate(parent, successor);
+ }
+
+ successor->rb_left = tmp = node->rb_left;
+ rb_set_parent(tmp, successor);
+
+ pc = node->__rb_parent_color;
+ tmp = __rb_parent(pc);
+ __rb_change_child(node, successor, tmp, root);
+ if (child2) {
+ successor->__rb_parent_color = pc;
+ rb_set_parent_color(child2, parent, RB_BLACK);
+ rebalance = NULL;
+ } else {
+ unsigned long pc2 = successor->__rb_parent_color;
+ successor->__rb_parent_color = pc;
+ rebalance = __rb_is_black(pc2) ? parent : NULL;
+ }
+ tmp = successor;
+ }
+
+ augment->propagate(tmp, NULL);
+ return rebalance;
+}
+
+static __always_inline void
+rb_erase_augmented(struct rb_node *node, struct rb_root *root,
+ const struct rb_augment_callbacks *augment)
+{
+ struct rb_node *rebalance = __rb_erase_augmented(node, root, augment);
+ if (rebalance)
+ __rb_erase_color(rebalance, root, augment->rotate);
+}
+
+#endif /* _TOOLS_LINUX_RBTREE_AUGMENTED_H */
diff --git a/tools/lib/rbtree.c b/tools/lib/rbtree.c
new file mode 100644
index 0000000..17c2b59
--- /dev/null
+++ b/tools/lib/rbtree.c
@@ -0,0 +1,548 @@
+/*
+ Red Black Trees
+ (C) 1999 Andrea Arcangeli <andrea@suse.de>
+ (C) 2002 David Woodhouse <dwmw2@infradead.org>
+ (C) 2012 Michel Lespinasse <walken@google.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ linux/lib/rbtree.c
+*/
+
+#include <linux/rbtree_augmented.h>
+
+/*
+ * red-black trees properties: http://en.wikipedia.org/wiki/Rbtree
+ *
+ * 1) A node is either red or black
+ * 2) The root is black
+ * 3) All leaves (NULL) are black
+ * 4) Both children of every red node are black
+ * 5) Every simple path from root to leaves contains the same number
+ * of black nodes.
+ *
+ * 4 and 5 give the O(log n) guarantee, since 4 implies you cannot have two
+ * consecutive red nodes in a path and every red node is therefore followed by
+ * a black. So if B is the number of black nodes on every simple path (as per
+ * 5), then the longest possible path due to 4 is 2B.
+ *
+ * We shall indicate color with case, where black nodes are uppercase and red
+ * nodes will be lowercase. Unknown color nodes shall be drawn as red within
+ * parentheses and have some accompanying text comment.
+ */
+
+static inline void rb_set_black(struct rb_node *rb)
+{
+ rb->__rb_parent_color |= RB_BLACK;
+}
+
+static inline struct rb_node *rb_red_parent(struct rb_node *red)
+{
+ return (struct rb_node *)red->__rb_parent_color;
+}
+
+/*
+ * Helper function for rotations:
+ * - old's parent and color get assigned to new
+ * - old gets assigned new as a parent and 'color' as a color.
+ */
+static inline void
+__rb_rotate_set_parents(struct rb_node *old, struct rb_node *new,
+ struct rb_root *root, int color)
+{
+ struct rb_node *parent = rb_parent(old);
+ new->__rb_parent_color = old->__rb_parent_color;
+ rb_set_parent_color(old, new, color);
+ __rb_change_child(old, new, parent, root);
+}
+
+static __always_inline void
+__rb_insert(struct rb_node *node, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
+{
+ struct rb_node *parent = rb_red_parent(node), *gparent, *tmp;
+
+ while (true) {
+ /*
+ * Loop invariant: node is red
+ *
+ * If there is a black parent, we are done.
+ * Otherwise, take some corrective action as we don't
+ * want a red root or two consecutive red nodes.
+ */
+ if (!parent) {
+ rb_set_parent_color(node, NULL, RB_BLACK);
+ break;
+ } else if (rb_is_black(parent))
+ break;
+
+ gparent = rb_red_parent(parent);
+
+ tmp = gparent->rb_right;
+ if (parent != tmp) { /* parent == gparent->rb_left */
+ if (tmp && rb_is_red(tmp)) {
+ /*
+ * Case 1 - color flips
+ *
+ * G g
+ * / \ / \
+ * p u --> P U
+ * / /
+ * n n
+ *
+ * However, since g's parent might be red, and
+ * 4) does not allow this, we need to recurse
+ * at g.
+ */
+ rb_set_parent_color(tmp, gparent, RB_BLACK);
+ rb_set_parent_color(parent, gparent, RB_BLACK);
+ node = gparent;
+ parent = rb_parent(node);
+ rb_set_parent_color(node, parent, RB_RED);
+ continue;
+ }
+
+ tmp = parent->rb_right;
+ if (node == tmp) {
+ /*
+ * Case 2 - left rotate at parent
+ *
+ * G G
+ * / \ / \
+ * p U --> n U
+ * \ /
+ * n p
+ *
+ * This still leaves us in violation of 4), the
+ * continuation into Case 3 will fix that.
+ */
+ parent->rb_right = tmp = node->rb_left;
+ node->rb_left = parent;
+ if (tmp)
+ rb_set_parent_color(tmp, parent,
+ RB_BLACK);
+ rb_set_parent_color(parent, node, RB_RED);
+ augment_rotate(parent, node);
+ parent = node;
+ tmp = node->rb_right;
+ }
+
+ /*
+ * Case 3 - right rotate at gparent
+ *
+ * G P
+ * / \ / \
+ * p U --> n g
+ * / \
+ * n U
+ */
+ gparent->rb_left = tmp; /* == parent->rb_right */
+ parent->rb_right = gparent;
+ if (tmp)
+ rb_set_parent_color(tmp, gparent, RB_BLACK);
+ __rb_rotate_set_parents(gparent, parent, root, RB_RED);
+ augment_rotate(gparent, parent);
+ break;
+ } else {
+ tmp = gparent->rb_left;
+ if (tmp && rb_is_red(tmp)) {
+ /* Case 1 - color flips */
+ rb_set_parent_color(tmp, gparent, RB_BLACK);
+ rb_set_parent_color(parent, gparent, RB_BLACK);
+ node = gparent;
+ parent = rb_parent(node);
+ rb_set_parent_color(node, parent, RB_RED);
+ continue;
+ }
+
+ tmp = parent->rb_left;
+ if (node == tmp) {
+ /* Case 2 - right rotate at parent */
+ parent->rb_left = tmp = node->rb_right;
+ node->rb_right = parent;
+ if (tmp)
+ rb_set_parent_color(tmp, parent,
+ RB_BLACK);
+ rb_set_parent_color(parent, node, RB_RED);
+ augment_rotate(parent, node);
+ parent = node;
+ tmp = node->rb_left;
+ }
+
+ /* Case 3 - left rotate at gparent */
+ gparent->rb_right = tmp; /* == parent->rb_left */
+ parent->rb_left = gparent;
+ if (tmp)
+ rb_set_parent_color(tmp, gparent, RB_BLACK);
+ __rb_rotate_set_parents(gparent, parent, root, RB_RED);
+ augment_rotate(gparent, parent);
+ break;
+ }
+ }
+}
+
+/*
+ * Inline version for rb_erase() use - we want to be able to inline
+ * and eliminate the dummy_rotate callback there
+ */
+static __always_inline void
+____rb_erase_color(struct rb_node *parent, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
+{
+ struct rb_node *node = NULL, *sibling, *tmp1, *tmp2;
+
+ while (true) {
+ /*
+ * Loop invariants:
+ * - node is black (or NULL on first iteration)
+ * - node is not the root (parent is not NULL)
+ * - All leaf paths going through parent and node have a
+ * black node count that is 1 lower than other leaf paths.
+ */
+ sibling = parent->rb_right;
+ if (node != sibling) { /* node == parent->rb_left */
+ if (rb_is_red(sibling)) {
+ /*
+ * Case 1 - left rotate at parent
+ *
+ * P S
+ * / \ / \
+ * N s --> p Sr
+ * / \ / \
+ * Sl Sr N Sl
+ */
+ parent->rb_right = tmp1 = sibling->rb_left;
+ sibling->rb_left = parent;
+ rb_set_parent_color(tmp1, parent, RB_BLACK);
+ __rb_rotate_set_parents(parent, sibling, root,
+ RB_RED);
+ augment_rotate(parent, sibling);
+ sibling = tmp1;
+ }
+ tmp1 = sibling->rb_right;
+ if (!tmp1 || rb_is_black(tmp1)) {
+ tmp2 = sibling->rb_left;
+ if (!tmp2 || rb_is_black(tmp2)) {
+ /*
+ * Case 2 - sibling color flip
+ * (p could be either color here)
+ *
+ * (p) (p)
+ * / \ / \
+ * N S --> N s
+ * / \ / \
+ * Sl Sr Sl Sr
+ *
+ * This leaves us violating 5) which
+ * can be fixed by flipping p to black
+ * if it was red, or by recursing at p.
+ * p is red when coming from Case 1.
+ */
+ rb_set_parent_color(sibling, parent,
+ RB_RED);
+ if (rb_is_red(parent))
+ rb_set_black(parent);
+ else {
+ node = parent;
+ parent = rb_parent(node);
+ if (parent)
+ continue;
+ }
+ break;
+ }
+ /*
+ * Case 3 - right rotate at sibling
+ * (p could be either color here)
+ *
+ * (p) (p)
+ * / \ / \
+ * N S --> N Sl
+ * / \ \
+ * sl Sr s
+ * \
+ * Sr
+ */
+ sibling->rb_left = tmp1 = tmp2->rb_right;
+ tmp2->rb_right = sibling;
+ parent->rb_right = tmp2;
+ if (tmp1)
+ rb_set_parent_color(tmp1, sibling,
+ RB_BLACK);
+ augment_rotate(sibling, tmp2);
+ tmp1 = sibling;
+ sibling = tmp2;
+ }
+ /*
+ * Case 4 - left rotate at parent + color flips
+ * (p and sl could be either color here.
+ * After rotation, p becomes black, s acquires
+ * p's color, and sl keeps its color)
+ *
+ * (p) (s)
+ * / \ / \
+ * N S --> P Sr
+ * / \ / \
+ * (sl) sr N (sl)
+ */
+ parent->rb_right = tmp2 = sibling->rb_left;
+ sibling->rb_left = parent;
+ rb_set_parent_color(tmp1, sibling, RB_BLACK);
+ if (tmp2)
+ rb_set_parent(tmp2, parent);
+ __rb_rotate_set_parents(parent, sibling, root,
+ RB_BLACK);
+ augment_rotate(parent, sibling);
+ break;
+ } else {
+ sibling = parent->rb_left;
+ if (rb_is_red(sibling)) {
+ /* Case 1 - right rotate at parent */
+ parent->rb_left = tmp1 = sibling->rb_right;
+ sibling->rb_right = parent;
+ rb_set_parent_color(tmp1, parent, RB_BLACK);
+ __rb_rotate_set_parents(parent, sibling, root,
+ RB_RED);
+ augment_rotate(parent, sibling);
+ sibling = tmp1;
+ }
+ tmp1 = sibling->rb_left;
+ if (!tmp1 || rb_is_black(tmp1)) {
+ tmp2 = sibling->rb_right;
+ if (!tmp2 || rb_is_black(tmp2)) {
+ /* Case 2 - sibling color flip */
+ rb_set_parent_color(sibling, parent,
+ RB_RED);
+ if (rb_is_red(parent))
+ rb_set_black(parent);
+ else {
+ node = parent;
+ parent = rb_parent(node);
+ if (parent)
+ continue;
+ }
+ break;
+ }
+ /* Case 3 - right rotate at sibling */
+ sibling->rb_right = tmp1 = tmp2->rb_left;
+ tmp2->rb_left = sibling;
+ parent->rb_left = tmp2;
+ if (tmp1)
+ rb_set_parent_color(tmp1, sibling,
+ RB_BLACK);
+ augment_rotate(sibling, tmp2);
+ tmp1 = sibling;
+ sibling = tmp2;
+ }
+ /* Case 4 - left rotate at parent + color flips */
+ parent->rb_left = tmp2 = sibling->rb_right;
+ sibling->rb_right = parent;
+ rb_set_parent_color(tmp1, sibling, RB_BLACK);
+ if (tmp2)
+ rb_set_parent(tmp2, parent);
+ __rb_rotate_set_parents(parent, sibling, root,
+ RB_BLACK);
+ augment_rotate(parent, sibling);
+ break;
+ }
+ }
+}
+
+/* Non-inline version for rb_erase_augmented() use */
+void __rb_erase_color(struct rb_node *parent, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
+{
+ ____rb_erase_color(parent, root, augment_rotate);
+}
+
+/*
+ * Non-augmented rbtree manipulation functions.
+ *
+ * We use dummy augmented callbacks here, and have the compiler optimize them
+ * out of the rb_insert_color() and rb_erase() function definitions.
+ */
+
+static inline void dummy_propagate(struct rb_node *node, struct rb_node *stop) {}
+static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
+static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
+
+static const struct rb_augment_callbacks dummy_callbacks = {
+ dummy_propagate, dummy_copy, dummy_rotate
+};
+
+void rb_insert_color(struct rb_node *node, struct rb_root *root)
+{
+ __rb_insert(node, root, dummy_rotate);
+}
+
+void rb_erase(struct rb_node *node, struct rb_root *root)
+{
+ struct rb_node *rebalance;
+ rebalance = __rb_erase_augmented(node, root, &dummy_callbacks);
+ if (rebalance)
+ ____rb_erase_color(rebalance, root, dummy_rotate);
+}
+
+/*
+ * Augmented rbtree manipulation functions.
+ *
+ * This instantiates the same __always_inline functions as in the non-augmented
+ * case, but this time with user-defined callbacks.
+ */
+
+void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
+ void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
+{
+ __rb_insert(node, root, augment_rotate);
+}
+
+/*
+ * This function returns the first node (in sort order) of the tree.
+ */
+struct rb_node *rb_first(const struct rb_root *root)
+{
+ struct rb_node *n;
+
+ n = root->rb_node;
+ if (!n)
+ return NULL;
+ while (n->rb_left)
+ n = n->rb_left;
+ return n;
+}
+
+struct rb_node *rb_last(const struct rb_root *root)
+{
+ struct rb_node *n;
+
+ n = root->rb_node;
+ if (!n)
+ return NULL;
+ while (n->rb_right)
+ n = n->rb_right;
+ return n;
+}
+
+struct rb_node *rb_next(const struct rb_node *node)
+{
+ struct rb_node *parent;
+
+ if (RB_EMPTY_NODE(node))
+ return NULL;
+
+ /*
+ * If we have a right-hand child, go down and then left as far
+ * as we can.
+ */
+ if (node->rb_right) {
+ node = node->rb_right;
+ while (node->rb_left)
+ node=node->rb_left;
+ return (struct rb_node *)node;
+ }
+
+ /*
+ * No right-hand children. Everything down and left is smaller than us,
+ * so any 'next' node must be in the general direction of our parent.
+ * Go up the tree; any time the ancestor is a right-hand child of its
+ * parent, keep going up. First time it's a left-hand child of its
+ * parent, said parent is our 'next' node.
+ */
+ while ((parent = rb_parent(node)) && node == parent->rb_right)
+ node = parent;
+
+ return parent;
+}
+
+struct rb_node *rb_prev(const struct rb_node *node)
+{
+ struct rb_node *parent;
+
+ if (RB_EMPTY_NODE(node))
+ return NULL;
+
+ /*
+ * If we have a left-hand child, go down and then right as far
+ * as we can.
+ */
+ if (node->rb_left) {
+ node = node->rb_left;
+ while (node->rb_right)
+ node=node->rb_right;
+ return (struct rb_node *)node;
+ }
+
+ /*
+ * No left-hand children. Go up till we find an ancestor which
+ * is a right-hand child of its parent.
+ */
+ while ((parent = rb_parent(node)) && node == parent->rb_left)
+ node = parent;
+
+ return parent;
+}
+
+void rb_replace_node(struct rb_node *victim, struct rb_node *new,
+ struct rb_root *root)
+{
+ struct rb_node *parent = rb_parent(victim);
+
+ /* Set the surrounding nodes to point to the replacement */
+ __rb_change_child(victim, new, parent, root);
+ if (victim->rb_left)
+ rb_set_parent(victim->rb_left, new);
+ if (victim->rb_right)
+ rb_set_parent(victim->rb_right, new);
+
+ /* Copy the pointers/colour from the victim to the replacement */
+ *new = *victim;
+}
+
+static struct rb_node *rb_left_deepest_node(const struct rb_node *node)
+{
+ for (;;) {
+ if (node->rb_left)
+ node = node->rb_left;
+ else if (node->rb_right)
+ node = node->rb_right;
+ else
+ return (struct rb_node *)node;
+ }
+}
+
+struct rb_node *rb_next_postorder(const struct rb_node *node)
+{
+ const struct rb_node *parent;
+ if (!node)
+ return NULL;
+ parent = rb_parent(node);
+
+ /* If we're sitting on node, we've already seen our children */
+ if (parent && node == parent->rb_left && parent->rb_right) {
+ /* If we are the parent's left node, go to the parent's right
+ * node then all the way down to the left */
+ return rb_left_deepest_node(parent->rb_right);
+ } else
+ /* Otherwise we are the parent's right node, and the parent
+ * should be next */
+ return (struct rb_node *)parent;
+}
+
+struct rb_node *rb_first_postorder(const struct rb_root *root)
+{
+ if (!root->rb_node)
+ return NULL;
+
+ return rb_left_deepest_node(root->rb_node);
+}
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 04e150d..47469ab 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -144,6 +144,10 @@
use --per-core in addition to -a. (system-wide). The output includes the
core number and the number of online logical processors on that physical processor.
+--per-thread::
+Aggregate counts per monitored threads, when monitoring threads (-t option)
+or processes (-p option).
+
-D msecs::
--delay msecs::
After starting the program, wait msecs before measuring. This is useful to
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index fe50a1b..09dc0aa 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -18,6 +18,7 @@
tools/arch/x86/include/asm/rmwcc.h
tools/lib/traceevent
tools/lib/api
+tools/lib/rbtree.c
tools/lib/symbol/kallsyms.c
tools/lib/symbol/kallsyms.h
tools/lib/util/find_next_bit.c
@@ -44,6 +45,8 @@
tools/include/linux/list.h
tools/include/linux/log2.h
tools/include/linux/poison.h
+tools/include/linux/rbtree.h
+tools/include/linux/rbtree_augmented.h
tools/include/linux/types.h
include/asm-generic/bitops/arch_hweight.h
include/asm-generic/bitops/const_hweight.h
@@ -51,12 +54,10 @@
include/asm-generic/bitops/__fls.h
include/asm-generic/bitops/fls.h
include/linux/perf_event.h
-include/linux/rbtree.h
include/linux/list.h
include/linux/hash.h
include/linux/stringify.h
lib/hweight.c
-lib/rbtree.c
include/linux/swab.h
arch/*/include/asm/unistd*.h
arch/*/include/uapi/asm/unistd*.h
@@ -65,7 +66,6 @@
arch/*/lib/memset*.S
include/linux/poison.h
include/linux/hw_breakpoint.h
-include/linux/rbtree_augmented.h
include/uapi/linux/perf_event.h
include/uapi/linux/const.h
include/uapi/linux/swab.h
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index d31a7bb..480546d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -83,8 +83,8 @@
#
# All other targets get passed through:
#
-%:
+%: FORCE
$(print_msg)
$(make)
-.PHONY: tags TAGS
+.PHONY: tags TAGS FORCE Makefile
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 1af0cfe..7a4b549 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -110,7 +110,7 @@
$(Q)touch $(OUTPUT)PERF-VERSION-FILE
CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)ld
+LD ?= $(CROSS_COMPILE)ld
AR = $(CROSS_COMPILE)ar
PKG_CONFIG = $(CROSS_COMPILE)pkg-config
@@ -545,7 +545,7 @@
clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean config-clean
$(call QUIET_CLEAN, core-objs) $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
- $(Q)$(RM) .config-detected
+ $(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
$(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 52ec66b..01b0649 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -630,12 +630,13 @@
if (inject.session == NULL)
return -1;
- if (symbol__init(&inject.session->header.env) < 0)
- return -1;
+ ret = symbol__init(&inject.session->header.env);
+ if (ret < 0)
+ goto out_delete;
ret = __cmd_inject(&inject);
+out_delete:
perf_session__delete(inject.session);
-
return ret;
}
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 950f296..23b1faa 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1916,7 +1916,7 @@
if (!perf_evlist__find_tracepoint_by_name(session->evlist,
"kmem:kmalloc")) {
pr_err(errmsg, "slab", "slab");
- return -1;
+ goto out_delete;
}
}
@@ -1927,7 +1927,7 @@
"kmem:mm_page_alloc");
if (evsel == NULL) {
pr_err(errmsg, "page", "page");
- return -1;
+ goto out_delete;
}
kmem_page_size = pevent_get_page_size(evsel->tp_format->pevent);
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 74878cd..fc1cffb 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1061,8 +1061,10 @@
symbol__init(&kvm->session->header.env);
- if (!perf_session__has_traces(kvm->session, "kvm record"))
- return -EINVAL;
+ if (!perf_session__has_traces(kvm->session, "kvm record")) {
+ ret = -EINVAL;
+ goto out_delete;
+ }
/*
* Do not use 'isa' recorded in kvm_exit tracepoint since it is not
@@ -1070,9 +1072,13 @@
*/
ret = cpu_isa_config(kvm);
if (ret < 0)
- return ret;
+ goto out_delete;
- return perf_session__process_events(kvm->session);
+ ret = perf_session__process_events(kvm->session);
+
+out_delete:
+ perf_session__delete(kvm->session);
+ return ret;
}
static int parse_target_str(struct perf_kvm_stat *kvm)
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index da2ec06..80170aa 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -124,7 +124,6 @@
.mode = PERF_DATA_MODE_READ,
.force = mem->force,
};
- int err = -EINVAL;
int ret;
struct perf_session *session = perf_session__new(&file, false,
&mem->tool);
@@ -135,24 +134,21 @@
if (mem->cpu_list) {
ret = perf_session__cpu_bitmap(session, mem->cpu_list,
mem->cpu_bitmap);
- if (ret)
+ if (ret < 0)
goto out_delete;
}
- if (symbol__init(&session->header.env) < 0)
- return -1;
+ ret = symbol__init(&session->header.env);
+ if (ret < 0)
+ goto out_delete;
printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
- err = perf_session__process_events(session);
- if (err)
- return err;
-
- return 0;
+ ret = perf_session__process_events(session);
out_delete:
perf_session__delete(session);
- return err;
+ return ret;
}
static int report_events(int argc, const char **argv, struct perf_mem *mem)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 32626ea..95a4771 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -742,6 +742,17 @@
argc = parse_options(argc, argv, options, report_usage, 0);
+ if (symbol_conf.vmlinux_name &&
+ access(symbol_conf.vmlinux_name, R_OK)) {
+ pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
+ return -EINVAL;
+ }
+ if (symbol_conf.kallsyms_name &&
+ access(symbol_conf.kallsyms_name, R_OK)) {
+ pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
+ return -EINVAL;
+ }
+
if (report.use_stdio)
use_browser = 0;
else if (report.use_tui)
@@ -828,8 +839,10 @@
if (report.header || report.header_only) {
perf_session__fprintf_info(session, stdout,
report.show_full_info);
- if (report.header_only)
- return 0;
+ if (report.header_only) {
+ ret = 0;
+ goto error;
+ }
} else if (use_browser == 0) {
fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
stdout);
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index fcf99bd..37e301a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -67,10 +67,7 @@
#define CNTR_NOT_SUPPORTED "<not supported>"
#define CNTR_NOT_COUNTED "<not counted>"
-static void print_stat(int argc, const char **argv);
-static void print_counter_aggr(struct perf_evsel *counter, char *prefix);
-static void print_counter(struct perf_evsel *counter, char *prefix);
-static void print_aggr(char *prefix);
+static void print_counters(struct timespec *ts, int argc, const char **argv);
/* Default events used for perf stat -T */
static const char *transaction_attrs = {
@@ -141,96 +138,9 @@
}
}
-static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
+static void perf_stat__reset_stats(void)
{
- return (evsel->cpus && !target.cpu_list) ? evsel->cpus : evsel_list->cpus;
-}
-
-static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
-{
- return perf_evsel__cpus(evsel)->nr;
-}
-
-static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
-{
- int i;
- struct perf_stat *ps = evsel->priv;
-
- for (i = 0; i < 3; i++)
- init_stats(&ps->res_stats[i]);
-
- perf_stat_evsel_id_init(evsel);
-}
-
-static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
-{
- evsel->priv = zalloc(sizeof(struct perf_stat));
- if (evsel->priv == NULL)
- return -ENOMEM;
- perf_evsel__reset_stat_priv(evsel);
- return 0;
-}
-
-static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
-{
- zfree(&evsel->priv);
-}
-
-static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel)
-{
- struct perf_counts *counts;
-
- counts = perf_counts__new(perf_evsel__nr_cpus(evsel));
- if (counts)
- evsel->prev_raw_counts = counts;
-
- return counts ? 0 : -ENOMEM;
-}
-
-static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
-{
- perf_counts__delete(evsel->prev_raw_counts);
- evsel->prev_raw_counts = NULL;
-}
-
-static void perf_evlist__free_stats(struct perf_evlist *evlist)
-{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- perf_evsel__free_stat_priv(evsel);
- perf_evsel__free_counts(evsel);
- perf_evsel__free_prev_raw_counts(evsel);
- }
-}
-
-static int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
-{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
- perf_evsel__alloc_counts(evsel, perf_evsel__nr_cpus(evsel)) < 0 ||
- (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel) < 0))
- goto out_free;
- }
-
- return 0;
-
-out_free:
- perf_evlist__free_stats(evlist);
- return -1;
-}
-
-static void perf_stat__reset_stats(struct perf_evlist *evlist)
-{
- struct perf_evsel *evsel;
-
- evlist__for_each(evlist, evsel) {
- perf_evsel__reset_stat_priv(evsel);
- perf_evsel__reset_counts(evsel, perf_evsel__nr_cpus(evsel));
- }
-
+ perf_evlist__reset_stats(evsel_list);
perf_stat__reset_shadow_stats();
}
@@ -304,8 +214,9 @@
return 0;
}
-static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
- struct perf_counts_values *count)
+static int
+process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
+ struct perf_counts_values *count)
{
struct perf_counts_values *aggr = &evsel->counts->aggr;
static struct perf_counts_values zero;
@@ -320,13 +231,13 @@
count = &zero;
switch (aggr_mode) {
+ case AGGR_THREAD:
case AGGR_CORE:
case AGGR_SOCKET:
case AGGR_NONE:
if (!evsel->snapshot)
- perf_evsel__compute_deltas(evsel, cpu, count);
+ perf_evsel__compute_deltas(evsel, cpu, thread, count);
perf_counts_values__scale(count, scale, NULL);
- evsel->counts->cpu[cpu] = *count;
if (aggr_mode == AGGR_NONE)
perf_stat__update_shadow_stats(evsel, count->values, cpu);
break;
@@ -343,26 +254,48 @@
return 0;
}
-static int read_counter(struct perf_evsel *counter);
+static int process_counter_maps(struct perf_evsel *counter)
+{
+ int nthreads = thread_map__nr(counter->threads);
+ int ncpus = perf_evsel__nr_cpus(counter);
+ int cpu, thread;
-/*
- * Read out the results of a single counter:
- * aggregate counts across CPUs in system-wide mode
- */
-static int read_counter_aggr(struct perf_evsel *counter)
+ if (counter->system_wide)
+ nthreads = 1;
+
+ for (thread = 0; thread < nthreads; thread++) {
+ for (cpu = 0; cpu < ncpus; cpu++) {
+ if (process_counter_values(counter, cpu, thread,
+ perf_counts(counter->counts, cpu, thread)))
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int process_counter(struct perf_evsel *counter)
{
struct perf_counts_values *aggr = &counter->counts->aggr;
struct perf_stat *ps = counter->priv;
u64 *count = counter->counts->aggr.values;
- int i;
+ int i, ret;
aggr->val = aggr->ena = aggr->run = 0;
+ init_stats(ps->res_stats);
- if (read_counter(counter))
- return -1;
+ if (counter->per_pkg)
+ zero_per_pkg(counter);
+
+ ret = process_counter_maps(counter);
+ if (ret)
+ return ret;
+
+ if (aggr_mode != AGGR_GLOBAL)
+ return 0;
if (!counter->snapshot)
- perf_evsel__compute_deltas(counter, -1, aggr);
+ perf_evsel__compute_deltas(counter, -1, -1, aggr);
perf_counts_values__scale(aggr, scale, &counter->counts->scaled);
for (i = 0; i < 3; i++)
@@ -397,12 +330,12 @@
if (counter->system_wide)
nthreads = 1;
- if (counter->per_pkg)
- zero_per_pkg(counter);
-
for (thread = 0; thread < nthreads; thread++) {
for (cpu = 0; cpu < ncpus; cpu++) {
- if (perf_evsel__read_cb(counter, cpu, thread, read_cb))
+ struct perf_counts_values *count;
+
+ count = perf_counts(counter->counts, cpu, thread);
+ if (perf_evsel__read(counter, cpu, thread, count))
return -1;
}
}
@@ -410,68 +343,34 @@
return 0;
}
-static void print_interval(void)
+static void read_counters(bool close)
{
- static int num_print_interval;
struct perf_evsel *counter;
- struct perf_stat *ps;
- struct timespec ts, rs;
- char prefix[64];
- if (aggr_mode == AGGR_GLOBAL) {
- evlist__for_each(evsel_list, counter) {
- ps = counter->priv;
- memset(ps->res_stats, 0, sizeof(ps->res_stats));
- read_counter_aggr(counter);
- }
- } else {
- evlist__for_each(evsel_list, counter) {
- ps = counter->priv;
- memset(ps->res_stats, 0, sizeof(ps->res_stats));
- read_counter(counter);
+ evlist__for_each(evsel_list, counter) {
+ if (read_counter(counter))
+ pr_warning("failed to read counter %s\n", counter->name);
+
+ if (process_counter(counter))
+ pr_warning("failed to process counter %s\n", counter->name);
+
+ if (close) {
+ perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
+ thread_map__nr(evsel_list->threads));
}
}
+}
+
+static void process_interval(void)
+{
+ struct timespec ts, rs;
+
+ read_counters(false);
clock_gettime(CLOCK_MONOTONIC, &ts);
diff_timespec(&rs, &ts, &ref_time);
- sprintf(prefix, "%6lu.%09lu%s", rs.tv_sec, rs.tv_nsec, csv_sep);
- if (num_print_interval == 0 && !csv_output) {
- switch (aggr_mode) {
- case AGGR_SOCKET:
- fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_CORE:
- fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_NONE:
- fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
- break;
- case AGGR_GLOBAL:
- default:
- fprintf(output, "# time counts %*s events\n", unit_width, "unit");
- }
- }
-
- if (++num_print_interval == 25)
- num_print_interval = 0;
-
- switch (aggr_mode) {
- case AGGR_CORE:
- case AGGR_SOCKET:
- print_aggr(prefix);
- break;
- case AGGR_NONE:
- evlist__for_each(evsel_list, counter)
- print_counter(counter, prefix);
- break;
- case AGGR_GLOBAL:
- default:
- evlist__for_each(evsel_list, counter)
- print_counter_aggr(counter, prefix);
- }
-
- fflush(output);
+ print_counters(&rs, 0, NULL);
}
static void handle_initial_delay(void)
@@ -586,7 +485,7 @@
if (interval) {
while (!waitpid(child_pid, &status, WNOHANG)) {
nanosleep(&ts, NULL);
- print_interval();
+ process_interval();
}
}
wait(&status);
@@ -604,7 +503,7 @@
while (!done) {
nanosleep(&ts, NULL);
if (interval)
- print_interval();
+ process_interval();
}
}
@@ -612,18 +511,7 @@
update_stats(&walltime_nsecs_stats, t1 - t0);
- if (aggr_mode == AGGR_GLOBAL) {
- evlist__for_each(evsel_list, counter) {
- read_counter_aggr(counter);
- perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
- thread_map__nr(evsel_list->threads));
- }
- } else {
- evlist__for_each(evsel_list, counter) {
- read_counter(counter);
- perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), 1);
- }
- }
+ read_counters(true);
return WEXITSTATUS(status);
}
@@ -715,6 +603,14 @@
csv_output ? 0 : -4,
perf_evsel__cpus(evsel)->map[id], csv_sep);
break;
+ case AGGR_THREAD:
+ fprintf(output, "%*s-%*d%s",
+ csv_output ? 0 : 16,
+ thread_map__comm(evsel->threads, id),
+ csv_output ? 0 : -8,
+ thread_map__pid(evsel->threads, id),
+ csv_sep);
+ break;
case AGGR_GLOBAL:
default:
break;
@@ -815,9 +711,9 @@
s2 = aggr_get_id(evsel_list->cpus, cpu2);
if (s2 != id)
continue;
- val += counter->counts->cpu[cpu].val;
- ena += counter->counts->cpu[cpu].ena;
- run += counter->counts->cpu[cpu].run;
+ val += perf_counts(counter->counts, cpu, 0)->val;
+ ena += perf_counts(counter->counts, cpu, 0)->ena;
+ run += perf_counts(counter->counts, cpu, 0)->run;
nr++;
}
if (prefix)
@@ -863,6 +759,40 @@
}
}
+static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
+{
+ int nthreads = thread_map__nr(counter->threads);
+ int ncpus = cpu_map__nr(counter->cpus);
+ int cpu, thread;
+ double uval;
+
+ for (thread = 0; thread < nthreads; thread++) {
+ u64 ena = 0, run = 0, val = 0;
+
+ for (cpu = 0; cpu < ncpus; cpu++) {
+ val += perf_counts(counter->counts, cpu, thread)->val;
+ ena += perf_counts(counter->counts, cpu, thread)->ena;
+ run += perf_counts(counter->counts, cpu, thread)->run;
+ }
+
+ if (prefix)
+ fprintf(output, "%s", prefix);
+
+ uval = val * counter->scale;
+
+ if (nsec_counter(counter))
+ nsec_printout(thread, 0, counter, uval);
+ else
+ abs_printout(thread, 0, counter, uval);
+
+ if (!csv_output)
+ print_noise(counter, 1.0);
+
+ print_running(run, ena);
+ fputc('\n', output);
+ }
+}
+
/*
* Print out the results of a single counter:
* aggregated counts in system-wide mode
@@ -925,9 +855,9 @@
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- val = counter->counts->cpu[cpu].val;
- ena = counter->counts->cpu[cpu].ena;
- run = counter->counts->cpu[cpu].run;
+ val = perf_counts(counter->counts, cpu, 0)->val;
+ ena = perf_counts(counter->counts, cpu, 0)->ena;
+ run = perf_counts(counter->counts, cpu, 0)->run;
if (prefix)
fprintf(output, "%s", prefix);
@@ -972,9 +902,38 @@
}
}
-static void print_stat(int argc, const char **argv)
+static void print_interval(char *prefix, struct timespec *ts)
{
- struct perf_evsel *counter;
+ static int num_print_interval;
+
+ sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
+
+ if (num_print_interval == 0 && !csv_output) {
+ switch (aggr_mode) {
+ case AGGR_SOCKET:
+ fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_CORE:
+ fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_NONE:
+ fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_THREAD:
+ fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit");
+ break;
+ case AGGR_GLOBAL:
+ default:
+ fprintf(output, "# time counts %*s events\n", unit_width, "unit");
+ }
+ }
+
+ if (++num_print_interval == 25)
+ num_print_interval = 0;
+}
+
+static void print_header(int argc, const char **argv)
+{
int i;
fflush(stdout);
@@ -1000,36 +959,57 @@
fprintf(output, " (%d runs)", run_count);
fprintf(output, ":\n\n");
}
+}
+
+static void print_footer(void)
+{
+ if (!null_run)
+ fprintf(output, "\n");
+ fprintf(output, " %17.9f seconds time elapsed",
+ avg_stats(&walltime_nsecs_stats)/1e9);
+ if (run_count > 1) {
+ fprintf(output, " ");
+ print_noise_pct(stddev_stats(&walltime_nsecs_stats),
+ avg_stats(&walltime_nsecs_stats));
+ }
+ fprintf(output, "\n\n");
+}
+
+static void print_counters(struct timespec *ts, int argc, const char **argv)
+{
+ struct perf_evsel *counter;
+ char buf[64], *prefix = NULL;
+
+ if (interval)
+ print_interval(prefix = buf, ts);
+ else
+ print_header(argc, argv);
switch (aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
- print_aggr(NULL);
+ print_aggr(prefix);
+ break;
+ case AGGR_THREAD:
+ evlist__for_each(evsel_list, counter)
+ print_aggr_thread(counter, prefix);
break;
case AGGR_GLOBAL:
evlist__for_each(evsel_list, counter)
- print_counter_aggr(counter, NULL);
+ print_counter_aggr(counter, prefix);
break;
case AGGR_NONE:
evlist__for_each(evsel_list, counter)
- print_counter(counter, NULL);
+ print_counter(counter, prefix);
break;
default:
break;
}
- if (!csv_output) {
- if (!null_run)
- fprintf(output, "\n");
- fprintf(output, " %17.9f seconds time elapsed",
- avg_stats(&walltime_nsecs_stats)/1e9);
- if (run_count > 1) {
- fprintf(output, " ");
- print_noise_pct(stddev_stats(&walltime_nsecs_stats),
- avg_stats(&walltime_nsecs_stats));
- }
- fprintf(output, "\n\n");
- }
+ if (!interval && !csv_output)
+ print_footer();
+
+ fflush(output);
}
static volatile int signr = -1;
@@ -1101,6 +1081,7 @@
break;
case AGGR_NONE:
case AGGR_GLOBAL:
+ case AGGR_THREAD:
default:
break;
}
@@ -1325,6 +1306,8 @@
"aggregate counts per processor socket", AGGR_SOCKET),
OPT_SET_UINT(0, "per-core", &aggr_mode,
"aggregate counts per physical processor core", AGGR_CORE),
+ OPT_SET_UINT(0, "per-thread", &aggr_mode,
+ "aggregate counts per thread", AGGR_THREAD),
OPT_UINTEGER('D', "delay", &initial_delay,
"ms to wait before starting measurement after program start"),
OPT_END()
@@ -1416,8 +1399,19 @@
run_count = 1;
}
- /* no_aggr, cgroup are for system-wide only */
- if ((aggr_mode != AGGR_GLOBAL || nr_cgroups) &&
+ if ((aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
+ fprintf(stderr, "The --per-thread option is only available "
+ "when monitoring via -p -t options.\n");
+ parse_options_usage(NULL, options, "p", 1);
+ parse_options_usage(NULL, options, "t", 1);
+ goto out;
+ }
+
+ /*
+ * no_aggr, cgroup are for system-wide only
+ * --per-thread is aggregated per thread, we dont mix it with cpu mode
+ */
+ if (((aggr_mode != AGGR_GLOBAL && aggr_mode != AGGR_THREAD) || nr_cgroups) &&
!target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");
@@ -1445,6 +1439,14 @@
}
goto out;
}
+
+ /*
+ * Initialize thread_map with comm names,
+ * so we could print it out on output.
+ */
+ if (aggr_mode == AGGR_THREAD)
+ thread_map__read_comms(evsel_list->threads);
+
if (interval && interval < 100) {
pr_err("print interval must be >= 100ms\n");
parse_options_usage(stat_usage, options, "I", 1);
@@ -1478,13 +1480,13 @@
status = run_perf_stat(argc, argv);
if (forever && status != -1) {
- print_stat(argc, argv);
- perf_stat__reset_stats(evsel_list);
+ print_counters(NULL, argc, argv);
+ perf_stat__reset_stats();
}
}
if (!forever && status != -1 && !interval)
- print_stat(argc, argv);
+ print_counters(NULL, argc, argv);
perf_evlist__free_stats(evsel_list);
out:
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 619a869..ecf3197 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -586,27 +586,9 @@
hists->uid_filter_str = top->record_opts.target.uid_str;
}
- while (true) {
- int key = perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
- top->min_percent,
- &top->session->header.env);
-
- if (key != 'f')
- break;
-
- perf_evlist__toggle_enable(top->evlist);
- /*
- * No need to refresh, resort/decay histogram entries
- * if we are not collecting samples:
- */
- if (top->evlist->enabled) {
- hbt.refresh = top->delay_secs;
- help = "Press 'f' to disable the events or 'h' to see other hotkeys";
- } else {
- help = "Press 'f' again to re-enable the events";
- hbt.refresh = 0;
- }
- }
+ perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
+ top->min_percent,
+ &top->session->header.env);
done = 1;
return NULL;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index de5d277..39ad4d0 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1617,6 +1617,34 @@
return syscall__set_arg_fmts(sc);
}
+static int trace__validate_ev_qualifier(struct trace *trace)
+{
+ int err = 0;
+ struct str_node *pos;
+
+ strlist__for_each(pos, trace->ev_qualifier) {
+ const char *sc = pos->s;
+
+ if (audit_name_to_syscall(sc, trace->audit.machine) < 0) {
+ if (err == 0) {
+ fputs("Error:\tInvalid syscall ", trace->output);
+ err = -EINVAL;
+ } else {
+ fputs(", ", trace->output);
+ }
+
+ fputs(sc, trace->output);
+ }
+ }
+
+ if (err < 0) {
+ fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
+ "\nHint:\tand: 'man syscalls'\n", trace->output);
+ }
+
+ return err;
+}
+
/*
* args is to be interpreted as a series of longs but we need to handle
* 8-byte unaligned accesses. args points to raw_data within the event
@@ -2325,7 +2353,7 @@
*/
if (trace->filter_pids.nr > 0)
err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries);
- else if (evlist->threads->map[0] == -1)
+ else if (thread_map__pid(evlist->threads, 0) == -1)
err = perf_evlist__set_filter_pid(evlist, getpid());
if (err < 0) {
@@ -2343,7 +2371,7 @@
if (forks)
perf_evlist__start_workload(evlist);
- trace->multiple_threads = evlist->threads->map[0] == -1 ||
+ trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 ||
evlist->threads->nr > 1 ||
perf_evlist__first(evlist)->attr.inherit;
again:
@@ -2862,6 +2890,10 @@
err = -ENOMEM;
goto out_close;
}
+
+ err = trace__validate_ev_qualifier(&trace);
+ if (err)
+ goto out_close;
}
err = target__validate(&trace.opts.target);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 317001c..094ddae 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -11,9 +11,9 @@
obj-perf := $(abspath $(obj-perf))/
endif
-$(shell echo -n > .config-detected)
-detected = $(shell echo "$(1)=y" >> .config-detected)
-detected_var = $(shell echo "$(1)=$($(1))" >> .config-detected)
+$(shell echo -n > $(OUTPUT).config-detected)
+detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
+detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index ee41e70..d20d6e6 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -31,6 +31,7 @@
perf-y += sample-parsing.o
perf-y += parse-no-sample-id-all.o
perf-y += kmod-path.o
+perf-y += thread-map.o
perf-$(CONFIG_X86) += perf-time-to-tsc.o
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 87b9961..c1dde73 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -171,6 +171,10 @@
.func = test__kmod_path__parse,
},
{
+ .desc = "Test thread map",
+ .func = test__thread_map,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 22f8a00..39c784a 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -545,8 +545,8 @@
if (evlist) {
perf_evlist__delete(evlist);
} else {
- cpu_map__delete(cpus);
- thread_map__delete(threads);
+ cpu_map__put(cpus);
+ thread_map__put(threads);
}
machines__destroy_kernel_maps(&machines);
machine__delete_threads(machine);
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index 5b171d1..4d4b983 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -144,8 +144,8 @@
perf_evlist__disable(evlist);
perf_evlist__delete(evlist);
} else {
- cpu_map__delete(cpus);
- thread_map__delete(threads);
+ cpu_map__put(cpus);
+ thread_map__put(threads);
}
return err;
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 65280d2..729112f 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -1,5 +1,16 @@
+ifndef MK
+ifeq ($(MAKECMDGOALS),)
+# no target specified, trigger the whole suite
+all:
+ @echo "Testing Makefile"; $(MAKE) -sf tests/make MK=Makefile
+ @echo "Testing Makefile.perf"; $(MAKE) -sf tests/make MK=Makefile.perf
+else
+# run only specific test over 'Makefile'
+%:
+ @echo "Testing Makefile"; $(MAKE) -sf tests/make MK=Makefile $@
+endif
+else
PERF := .
-MK := Makefile
include config/Makefile.arch
@@ -47,6 +58,7 @@
make_install_html := install-html
make_install_info := install-info
make_install_pdf := install-pdf
+make_install_prefix := install prefix=/tmp/krava
make_static := LDFLAGS=-static
# all the NO_* variable combined
@@ -57,7 +69,12 @@
# $(run) contains all available tests
run := make_pure
+# Targets 'clean all' can be run together only through top level
+# Makefile because we detect clean target in Makefile.perf and
+# disable features detection
+ifeq ($(MK),Makefile)
run += make_clean_all
+endif
run += make_python_perf_so
run += make_debug
run += make_no_libperl
@@ -83,6 +100,7 @@
run += make_util_pmu_bison_o
run += make_install
run += make_install_bin
+run += make_install_prefix
# FIXME 'install-*' commented out till they're fixed
# run += make_install_doc
# run += make_install_man
@@ -157,6 +175,12 @@
test_make_install_bin := $(call test_dest_files,$(installed_files_bin))
test_make_install_bin_O := $(call test_dest_files,$(installed_files_bin))
+# We prefix all installed files for make_install_prefix
+# with '/tmp/krava' to match installed/prefix-ed files.
+installed_files_all_prefix := $(addprefix /tmp/krava/,$(installed_files_all))
+test_make_install_prefix := $(call test_dest_files,$(installed_files_all_prefix))
+test_make_install_prefix_O := $(call test_dest_files,$(installed_files_all_prefix))
+
# FIXME nothing gets installed
test_make_install_man := test -f $$TMP_DEST/share/man/man1/perf.1
test_make_install_man_O := $(test_make_install_man)
@@ -226,13 +250,13 @@
( eval $$cmd ) >> $@ 2>&1
make_kernelsrc:
- @echo " - make -C <kernelsrc> tools/perf"
+ @echo "- make -C <kernelsrc> tools/perf"
$(call clean); \
(make -C ../.. tools/perf) > $@ 2>&1 && \
test -x perf && rm -f $@ || (cat $@ ; false)
make_kernelsrc_tools:
- @echo " - make -C <kernelsrc>/tools perf"
+ @echo "- make -C <kernelsrc>/tools perf"
$(call clean); \
(make -C ../../tools perf) > $@ 2>&1 && \
test -x perf && rm -f $@ || (cat $@ ; false)
@@ -244,3 +268,4 @@
@echo OK
.PHONY: all $(run) $(run_O) tarpkg clean
+endif # ifndef MK
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index 5855cf4..666b67a 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -140,8 +140,8 @@
cpus = NULL;
threads = NULL;
out_free_cpus:
- cpu_map__delete(cpus);
+ cpu_map__put(cpus);
out_free_threads:
- thread_map__delete(threads);
+ thread_map__put(threads);
return err;
}
diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
index 7f48efa..145050e 100644
--- a/tools/perf/tests/mmap-thread-lookup.c
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -143,7 +143,7 @@
perf_event__process,
machine, 0, 500);
- thread_map__delete(map);
+ thread_map__put(map);
return err;
}
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index 9a7a116..a572f87 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -78,7 +78,7 @@
* we use the auto allocation it will allocate just for 1 cpu,
* as we start by cpu 0.
*/
- if (perf_evsel__alloc_counts(evsel, cpus->nr) < 0) {
+ if (perf_evsel__alloc_counts(evsel, cpus->nr, 1) < 0) {
pr_debug("perf_evsel__alloc_counts(ncpus=%d)\n", cpus->nr);
goto out_close_fd;
}
@@ -98,9 +98,9 @@
}
expected = nr_openat_calls + cpu;
- if (evsel->counts->cpu[cpu].val != expected) {
+ if (perf_counts(evsel->counts, cpu, 0)->val != expected) {
pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls on cpu %d, got %" PRIu64 "\n",
- expected, cpus->map[cpu], evsel->counts->cpu[cpu].val);
+ expected, cpus->map[cpu], perf_counts(evsel->counts, cpu, 0)->val);
err = -1;
}
}
@@ -111,6 +111,6 @@
out_evsel_delete:
perf_evsel__delete(evsel);
out_thread_map_delete:
- thread_map__delete(threads);
+ thread_map__put(threads);
return err;
}
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 6245221..01a1962 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -45,7 +45,7 @@
perf_evsel__config(evsel, &opts);
- evlist->threads->map[0] = getpid();
+ thread_map__set_pid(evlist->threads, 0, getpid());
err = perf_evlist__open(evlist);
if (err < 0) {
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 9f9491b..c9a37bc 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -44,9 +44,9 @@
goto out_close_fd;
}
- if (evsel->counts->cpu[0].val != nr_openat_calls) {
+ if (perf_counts(evsel->counts, 0, 0)->val != nr_openat_calls) {
pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n",
- nr_openat_calls, evsel->counts->cpu[0].val);
+ nr_openat_calls, perf_counts(evsel->counts, 0, 0)->val);
goto out_close_fd;
}
@@ -56,6 +56,6 @@
out_evsel_delete:
perf_evsel__delete(evsel);
out_thread_map_delete:
- thread_map__delete(threads);
+ thread_map__put(threads);
return err;
}
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 0d31403..e698742 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -560,8 +560,8 @@
perf_evlist__disable(evlist);
perf_evlist__delete(evlist);
} else {
- cpu_map__delete(cpus);
- thread_map__delete(threads);
+ cpu_map__put(cpus);
+ thread_map__put(threads);
}
return err;
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 8e5038b..ebb47d9 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -61,6 +61,7 @@
int test__fdarray__filter(void);
int test__fdarray__add(void);
int test__kmod_path__parse(void);
+int test__thread_map(void);
#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
new file mode 100644
index 0000000..5acf000
--- /dev/null
+++ b/tools/perf/tests/thread-map.c
@@ -0,0 +1,38 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include "tests.h"
+#include "thread_map.h"
+#include "debug.h"
+
+int test__thread_map(void)
+{
+ struct thread_map *map;
+
+ /* test map on current pid */
+ map = thread_map__new_by_pid(getpid());
+ TEST_ASSERT_VAL("failed to alloc map", map);
+
+ thread_map__read_comms(map);
+
+ TEST_ASSERT_VAL("wrong nr", map->nr == 1);
+ TEST_ASSERT_VAL("wrong pid",
+ thread_map__pid(map, 0) == getpid());
+ TEST_ASSERT_VAL("wrong comm",
+ thread_map__comm(map, 0) &&
+ !strcmp(thread_map__comm(map, 0), "perf"));
+ thread_map__put(map);
+
+ /* test dummy pid */
+ map = thread_map__new_dummy();
+ TEST_ASSERT_VAL("failed to alloc map", map);
+
+ thread_map__read_comms(map);
+
+ TEST_ASSERT_VAL("wrong nr", map->nr == 1);
+ TEST_ASSERT_VAL("wrong pid", thread_map__pid(map, 0) == -1);
+ TEST_ASSERT_VAL("wrong comm",
+ thread_map__comm(map, 0) &&
+ !strcmp(thread_map__comm(map, 0), "dummy"));
+ thread_map__put(map);
+ return 0;
+}
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index c42adb6..7629bef 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1902,8 +1902,23 @@
case CTRL('c'):
goto out_free_stack;
case 'f':
- if (!is_report_browser(hbt))
- goto out_free_stack;
+ if (!is_report_browser(hbt)) {
+ struct perf_top *top = hbt->arg;
+
+ perf_evlist__toggle_enable(top->evlist);
+ /*
+ * No need to refresh, resort/decay histogram
+ * entries if we are not collecting samples:
+ */
+ if (top->evlist->enabled) {
+ helpline = "Press 'f' to disable the events or 'h' to see other hotkeys";
+ hbt->refresh = delay_secs;
+ } else {
+ helpline = "Press 'f' again to re-enable the events";
+ hbt->refresh = 0;
+ }
+ continue;
+ }
/* Fall thru */
default:
helpline = "Press '?' for help on key bindings";
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 586a59d..601d114 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -139,7 +139,7 @@
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
-$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c FORCE
+$(OUTPUT)util/rbtree.o: ../lib/rbtree.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index df66966..7e7405c 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -119,12 +119,12 @@
if (per_cpu) {
mp->cpu = evlist->cpus->map[idx];
if (evlist->threads)
- mp->tid = evlist->threads->map[0];
+ mp->tid = thread_map__pid(evlist->threads, 0);
else
mp->tid = -1;
} else {
mp->cpu = -1;
- mp->tid = evlist->threads->map[idx];
+ mp->tid = thread_map__pid(evlist->threads, idx);
}
}
@@ -1182,6 +1182,13 @@
data2 = NULL;
}
+ if (itr->alignment) {
+ unsigned int unwanted = len1 % itr->alignment;
+
+ len1 -= unwanted;
+ size -= unwanted;
+ }
+
/* padding must be written by fn() e.g. record__process_auxtrace() */
padding = size & 7;
if (padding)
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index a171abb..471aecb 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -303,6 +303,7 @@
const char *str);
u64 (*reference)(struct auxtrace_record *itr);
int (*read_finish)(struct auxtrace_record *itr, int idx);
+ unsigned int alignment;
};
#ifdef HAVE_AUXTRACE_SUPPORT
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c
index 85b5238..2babdda 100644
--- a/tools/perf/util/cloexec.c
+++ b/tools/perf/util/cloexec.c
@@ -7,11 +7,15 @@
static unsigned long flag = PERF_FLAG_FD_CLOEXEC;
+#ifdef __GLIBC_PREREQ
+#if !__GLIBC_PREREQ(2, 6)
int __weak sched_getcpu(void)
{
errno = ENOSYS;
return -1;
}
+#endif
+#endif
static int perf_flag_probe(void)
{
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index c4e55b7..3667e21 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -5,6 +5,7 @@
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
+#include "asm/bug.h"
static struct cpu_map *cpu_map__default_new(void)
{
@@ -22,6 +23,7 @@
cpus->map[i] = i;
cpus->nr = nr_cpus;
+ atomic_set(&cpus->refcnt, 1);
}
return cpus;
@@ -35,6 +37,7 @@
if (cpus != NULL) {
cpus->nr = nr_cpus;
memcpy(cpus->map, tmp_cpus, payload_size);
+ atomic_set(&cpus->refcnt, 1);
}
return cpus;
@@ -194,14 +197,32 @@
if (cpus != NULL) {
cpus->nr = 1;
cpus->map[0] = -1;
+ atomic_set(&cpus->refcnt, 1);
}
return cpus;
}
-void cpu_map__delete(struct cpu_map *map)
+static void cpu_map__delete(struct cpu_map *map)
{
- free(map);
+ if (map) {
+ WARN_ONCE(atomic_read(&map->refcnt) != 0,
+ "cpu_map refcnt unbalanced\n");
+ free(map);
+ }
+}
+
+struct cpu_map *cpu_map__get(struct cpu_map *map)
+{
+ if (map)
+ atomic_inc(&map->refcnt);
+ return map;
+}
+
+void cpu_map__put(struct cpu_map *map)
+{
+ if (map && atomic_dec_and_test(&map->refcnt))
+ cpu_map__delete(map);
}
int cpu_map__get_socket(struct cpu_map *map, int idx)
@@ -263,6 +284,7 @@
/* ensure we process id in increasing order */
qsort(c->map, c->nr, sizeof(int), cmp_ids);
+ atomic_set(&cpus->refcnt, 1);
*res = c;
return 0;
}
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 61a6548..0af9cec 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -3,18 +3,19 @@
#include <stdio.h>
#include <stdbool.h>
+#include <linux/atomic.h>
#include "perf.h"
#include "util/debug.h"
struct cpu_map {
+ atomic_t refcnt;
int nr;
int map[];
};
struct cpu_map *cpu_map__new(const char *cpu_list);
struct cpu_map *cpu_map__dummy_new(void);
-void cpu_map__delete(struct cpu_map *map);
struct cpu_map *cpu_map__read(FILE *file);
size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
int cpu_map__get_socket(struct cpu_map *map, int idx);
@@ -22,6 +23,9 @@
int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
+struct cpu_map *cpu_map__get(struct cpu_map *map);
+void cpu_map__put(struct cpu_map *map);
+
static inline int cpu_map__socket(struct cpu_map *sock, int s)
{
if (!sock || s > sock->nr || s < 0)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index d7d986d..67a977e 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -504,7 +504,7 @@
for (thread = 0; thread < threads->nr; ++thread) {
if (__event__synthesize_thread(comm_event, mmap_event,
fork_event,
- threads->map[thread], 0,
+ thread_map__pid(threads, thread), 0,
process, tool, machine,
mmap_data, proc_map_timeout)) {
err = -1;
@@ -515,12 +515,12 @@
* comm.pid is set to thread group id by
* perf_event__synthesize_comm
*/
- if ((int) comm_event->comm.pid != threads->map[thread]) {
+ if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) {
bool need_leader = true;
/* is thread group leader in thread_map? */
for (j = 0; j < threads->nr; ++j) {
- if ((int) comm_event->comm.pid == threads->map[j]) {
+ if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) {
need_leader = false;
break;
}
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8366511..6cfdee6 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -114,8 +114,8 @@
{
perf_evlist__munmap(evlist);
perf_evlist__close(evlist);
- cpu_map__delete(evlist->cpus);
- thread_map__delete(evlist->threads);
+ cpu_map__put(evlist->cpus);
+ thread_map__put(evlist->threads);
evlist->cpus = NULL;
evlist->threads = NULL;
perf_evlist__purge(evlist);
@@ -548,7 +548,7 @@
else
sid->cpu = -1;
if (!evsel->system_wide && evlist->threads && thread >= 0)
- sid->tid = evlist->threads->map[thread];
+ sid->tid = thread_map__pid(evlist->threads, thread);
else
sid->tid = -1;
}
@@ -1101,6 +1101,31 @@
return perf_evlist__mmap_ex(evlist, pages, overwrite, 0, false);
}
+static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
+ struct target *target)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(evlist, evsel) {
+ /*
+ * We already have cpus for evsel (via PMU sysfs) so
+ * keep it, if there's no target cpu list defined.
+ */
+ if (evsel->cpus && target->cpu_list)
+ cpu_map__put(evsel->cpus);
+
+ if (!evsel->cpus || target->cpu_list)
+ evsel->cpus = cpu_map__get(evlist->cpus);
+
+ evsel->threads = thread_map__get(evlist->threads);
+
+ if (!evsel->cpus || !evsel->threads)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
{
evlist->threads = thread_map__new_str(target->pid, target->tid,
@@ -1117,10 +1142,10 @@
if (evlist->cpus == NULL)
goto out_delete_threads;
- return 0;
+ return perf_evlist__propagate_maps(evlist, target);
out_delete_threads:
- thread_map__delete(evlist->threads);
+ thread_map__put(evlist->threads);
evlist->threads = NULL;
return -1;
}
@@ -1353,7 +1378,7 @@
out:
return err;
out_free_cpus:
- cpu_map__delete(evlist->cpus);
+ cpu_map__put(evlist->cpus);
evlist->cpus = NULL;
goto out;
}
@@ -1475,7 +1500,7 @@
__func__, __LINE__);
goto out_close_pipes;
}
- evlist->threads->map[0] = evlist->workload.pid;
+ thread_map__set_pid(evlist->threads, 0, evlist->workload.pid);
}
close(child_ready_pipe[1]);
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index a8489b9..037633c 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -289,5 +289,4 @@
void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
struct perf_evsel *tracking_evsel);
-
#endif /* __PERF_EVLIST_H */
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 33449de..2936b30 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -885,6 +885,8 @@
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
close_cgroup(evsel->cgrp);
+ cpu_map__put(evsel->cpus);
+ thread_map__put(evsel->threads);
zfree(&evsel->group_name);
zfree(&evsel->name);
perf_evsel__object.fini(evsel);
@@ -896,7 +898,7 @@
free(evsel);
}
-void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu,
+void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
struct perf_counts_values *count)
{
struct perf_counts_values tmp;
@@ -908,8 +910,8 @@
tmp = evsel->prev_raw_counts->aggr;
evsel->prev_raw_counts->aggr = *count;
} else {
- tmp = evsel->prev_raw_counts->cpu[cpu];
- evsel->prev_raw_counts->cpu[cpu] = *count;
+ tmp = *perf_counts(evsel->prev_raw_counts, cpu, thread);
+ *perf_counts(evsel->prev_raw_counts, cpu, thread) = *count;
}
count->val = count->val - tmp.val;
@@ -937,20 +939,18 @@
*pscaled = scaled;
}
-int perf_evsel__read_cb(struct perf_evsel *evsel, int cpu, int thread,
- perf_evsel__read_cb_t cb)
+int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
+ struct perf_counts_values *count)
{
- struct perf_counts_values count;
-
- memset(&count, 0, sizeof(count));
+ memset(count, 0, sizeof(*count));
if (FD(evsel, cpu, thread) < 0)
return -EINVAL;
- if (readn(FD(evsel, cpu, thread), &count, sizeof(count)) < 0)
+ if (readn(FD(evsel, cpu, thread), count, sizeof(*count)) < 0)
return -errno;
- return cb(evsel, cpu, thread, &count);
+ return 0;
}
int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
@@ -962,15 +962,15 @@
if (FD(evsel, cpu, thread) < 0)
return -EINVAL;
- if (evsel->counts == NULL && perf_evsel__alloc_counts(evsel, cpu + 1) < 0)
+ if (evsel->counts == NULL && perf_evsel__alloc_counts(evsel, cpu + 1, thread + 1) < 0)
return -ENOMEM;
if (readn(FD(evsel, cpu, thread), &count, nv * sizeof(u64)) < 0)
return -errno;
- perf_evsel__compute_deltas(evsel, cpu, &count);
+ perf_evsel__compute_deltas(evsel, cpu, thread, &count);
perf_counts_values__scale(&count, scale, NULL);
- evsel->counts->cpu[cpu] = count;
+ *perf_counts(evsel->counts, cpu, thread) = count;
return 0;
}
@@ -1167,7 +1167,7 @@
int group_fd;
if (!evsel->cgrp && !evsel->system_wide)
- pid = threads->map[thread];
+ pid = thread_map__pid(threads, thread);
group_fd = get_group_fd(evsel, cpu, thread);
retry_open:
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index bb0579e..4a7ed56 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -8,23 +8,8 @@
#include <linux/types.h>
#include "xyarray.h"
#include "symbol.h"
-
-struct perf_counts_values {
- union {
- struct {
- u64 val;
- u64 ena;
- u64 run;
- };
- u64 values[3];
- };
-};
-
-struct perf_counts {
- s8 scaled;
- struct perf_counts_values aggr;
- struct perf_counts_values cpu[];
-};
+#include "cpumap.h"
+#include "stat.h"
struct perf_evsel;
@@ -82,6 +67,7 @@
struct cgroup_sel *cgrp;
void *handler;
struct cpu_map *cpus;
+ struct thread_map *threads;
unsigned int sample_size;
int id_pos;
int is_pos;
@@ -113,10 +99,20 @@
struct perf_evlist;
struct record_opts;
+static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
+{
+ return evsel->cpus;
+}
+
+static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
+{
+ return perf_evsel__cpus(evsel)->nr;
+}
+
void perf_counts_values__scale(struct perf_counts_values *count,
bool scale, s8 *pscaled);
-void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu,
+void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
struct perf_counts_values *count);
int perf_evsel__object_config(size_t object_size,
@@ -233,12 +229,8 @@
(a)->attr.type == (b)->attr.type && \
(a)->attr.config == (b)->attr.config)
-typedef int (perf_evsel__read_cb_t)(struct perf_evsel *evsel,
- int cpu, int thread,
- struct perf_counts_values *count);
-
-int perf_evsel__read_cb(struct perf_evsel *evsel, int cpu, int thread,
- perf_evsel__read_cb_t cb);
+int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
+ struct perf_counts_values *count);
int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
int cpu, int thread, bool scale);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 21a77e7..03ace57 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1063,8 +1063,7 @@
free(buf);
return events;
error:
- if (events)
- free_event_desc(events);
+ free_event_desc(events);
events = NULL;
goto out;
}
diff --git a/tools/perf/util/include/linux/rbtree.h b/tools/perf/util/include/linux/rbtree.h
deleted file mode 100644
index f06d89f..0000000
--- a/tools/perf/util/include/linux/rbtree.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __TOOLS_LINUX_PERF_RBTREE_H
-#define __TOOLS_LINUX_PERF_RBTREE_H
-#include <stdbool.h>
-#include "../../../../include/linux/rbtree.h"
-
-/*
- * Handy for checking that we are not deleting an entry that is
- * already in a list, found in block/{blk-throttle,cfq-iosched}.c,
- * probably should be moved to lib/rbtree.c...
- */
-static inline void rb_erase_init(struct rb_node *n, struct rb_root *root)
-{
- rb_erase(n, root);
- RB_CLEAR_NODE(n);
-}
-#endif /* __TOOLS_LINUX_PERF_RBTREE_H */
diff --git a/tools/perf/util/include/linux/rbtree_augmented.h b/tools/perf/util/include/linux/rbtree_augmented.h
deleted file mode 100644
index 9d6fcdf..0000000
--- a/tools/perf/util/include/linux/rbtree_augmented.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <stdbool.h>
-#include "../../../../include/linux/rbtree_augmented.h"
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 4744673..7ff6827 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1448,10 +1448,9 @@
case PERF_RECORD_AUX:
ret = machine__process_aux_event(machine, event); break;
case PERF_RECORD_ITRACE_START:
- ret = machine__process_itrace_start_event(machine, event);
+ ret = machine__process_itrace_start_event(machine, event); break;
case PERF_RECORD_LOST_SAMPLES:
ret = machine__process_lost_samples_event(machine, event, sample); break;
- break;
default:
ret = -1;
break;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 2a4d1ec..09f8d23 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -17,6 +17,7 @@
#include "parse-events-flex.h"
#include "pmu.h"
#include "thread_map.h"
+#include "cpumap.h"
#include "asm/bug.h"
#define MAX_NAME_LEN 100
@@ -285,7 +286,9 @@
if (!evsel)
return NULL;
- evsel->cpus = cpus;
+ if (cpus)
+ evsel->cpus = cpu_map__get(cpus);
+
if (name)
evsel->name = strdup(name);
list_add_tail(&evsel->node, list);
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 09e738f..13cef3c 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -119,8 +119,8 @@
num_dec [0-9]+
num_hex 0x[a-fA-F0-9]+
num_raw_hex [a-fA-F0-9]+
-name [a-zA-Z_*?][a-zA-Z0-9_*?]*
-name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?]*
+name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
+name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.]*
/* If you add a modifier you need to update check_modifier() */
modifier_event [ukhpGHSDI]+
modifier_bp [rwx]{1,3}
@@ -165,7 +165,6 @@
return PE_EVENT_NAME;
}
-. |
<<EOF>> {
BEGIN(INITIAL);
REWIND(0);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 0fcc624..7bcb8c3 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1,4 +1,5 @@
#include <linux/list.h>
+#include <linux/compiler.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
@@ -205,17 +206,12 @@
return 0;
}
-static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FILE *file)
+static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
+ char *desc __maybe_unused, char *val)
{
struct perf_pmu_alias *alias;
- char buf[256];
int ret;
- ret = fread(buf, 1, sizeof(buf), file);
- if (ret == 0)
- return -EINVAL;
- buf[ret] = 0;
-
alias = malloc(sizeof(*alias));
if (!alias)
return -ENOMEM;
@@ -225,26 +221,43 @@
alias->unit[0] = '\0';
alias->per_pkg = false;
- ret = parse_events_terms(&alias->terms, buf);
+ ret = parse_events_terms(&alias->terms, val);
if (ret) {
+ pr_err("Cannot parse alias %s: %d\n", val, ret);
free(alias);
return ret;
}
alias->name = strdup(name);
- /*
- * load unit name and scale if available
- */
- perf_pmu__parse_unit(alias, dir, name);
- perf_pmu__parse_scale(alias, dir, name);
- perf_pmu__parse_per_pkg(alias, dir, name);
- perf_pmu__parse_snapshot(alias, dir, name);
+ if (dir) {
+ /*
+ * load unit name and scale if available
+ */
+ perf_pmu__parse_unit(alias, dir, name);
+ perf_pmu__parse_scale(alias, dir, name);
+ perf_pmu__parse_per_pkg(alias, dir, name);
+ perf_pmu__parse_snapshot(alias, dir, name);
+ }
list_add_tail(&alias->list, list);
return 0;
}
+static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FILE *file)
+{
+ char buf[256];
+ int ret;
+
+ ret = fread(buf, 1, sizeof(buf), file);
+ if (ret == 0)
+ return -EINVAL;
+
+ buf[ret] = 0;
+
+ return __perf_pmu__new_alias(list, dir, name, NULL, buf);
+}
+
static inline bool pmu_alias_info_file(char *name)
{
size_t len;
@@ -436,7 +449,7 @@
return cpus;
}
-struct perf_event_attr *__attribute__((weak))
+struct perf_event_attr * __weak
perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
{
return NULL;
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 076527b..381f23a 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -249,8 +249,12 @@
static bool kprobe_blacklist__listed(unsigned long address);
static bool kprobe_warn_out_range(const char *symbol, unsigned long address)
{
+ u64 etext_addr;
+
/* Get the address of _etext for checking non-probable text symbol */
- if (kernel_get_symbol_address_by_name("_etext", false) < address)
+ etext_addr = kernel_get_symbol_address_by_name("_etext", false);
+
+ if (etext_addr != 0 && etext_addr < address)
pr_warning("%s is out of .text, skip it.\n", symbol);
else if (kprobe_blacklist__listed(address))
pr_warning("%s is blacklisted function, skip it.\n", symbol);
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 5925fec..e23ded4 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -20,3 +20,4 @@
util/strlist.c
util/trace-event.c
../../lib/rbtree.c
+util/string.c
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index d906d0ad..626422e 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -384,7 +384,7 @@
static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
{
- cpu_map__delete(pcpus->cpus);
+ cpu_map__put(pcpus->cpus);
pcpus->ob_type->tp_free((PyObject*)pcpus);
}
@@ -453,7 +453,7 @@
static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
{
- thread_map__delete(pthreads->threads);
+ thread_map__put(pthreads->threads);
pthreads->ob_type->tp_free((PyObject*)pthreads);
}
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index d457c52..1f7becb 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -64,7 +64,7 @@
if (!cpus)
return false;
cpu = cpus->map[0];
- cpu_map__delete(cpus);
+ cpu_map__put(cpus);
do {
ret = perf_do_probe_api(fn, cpu, try[i++]);
@@ -226,7 +226,7 @@
struct cpu_map *cpus = cpu_map__new(NULL);
cpu = cpus ? cpus->map[0] : 0;
- cpu_map__delete(cpus);
+ cpu_map__put(cpus);
} else {
cpu = evlist->cpus->map[0];
}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index aa482c1..ed9dc25 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -686,6 +686,8 @@
union perf_event *event __maybe_unused,
struct ordered_events *oe)
{
+ if (dump_trace)
+ fprintf(stdout, "\n");
return ordered_events__flush(oe, OE_FLUSH__ROUND);
}
@@ -1726,7 +1728,7 @@
if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
- ret = fprintf(fp, "Aggregated stats:%s\n", msg);
+ ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
ret += events_stats__fprintf(&session->evlist->stats, fp);
return ret;
@@ -1893,7 +1895,7 @@
err = 0;
out_delete_map:
- cpu_map__delete(map);
+ cpu_map__put(map);
return err;
}
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 4014b70..f2a0d15 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -1,6 +1,8 @@
#include <math.h>
#include "stat.h"
+#include "evlist.h"
#include "evsel.h"
+#include "thread_map.h"
void update_stats(struct stats *stats, u64 val)
{
@@ -95,33 +97,46 @@
}
}
-struct perf_counts *perf_counts__new(int ncpus)
+struct perf_counts *perf_counts__new(int ncpus, int nthreads)
{
- int size = sizeof(struct perf_counts) +
- ncpus * sizeof(struct perf_counts_values);
+ struct perf_counts *counts = zalloc(sizeof(*counts));
- return zalloc(size);
+ if (counts) {
+ struct xyarray *values;
+
+ values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
+ if (!values) {
+ free(counts);
+ return NULL;
+ }
+
+ counts->values = values;
+ }
+
+ return counts;
}
void perf_counts__delete(struct perf_counts *counts)
{
- free(counts);
+ if (counts) {
+ xyarray__delete(counts->values);
+ free(counts);
+ }
}
-static void perf_counts__reset(struct perf_counts *counts, int ncpus)
+static void perf_counts__reset(struct perf_counts *counts)
{
- memset(counts, 0, (sizeof(*counts) +
- (ncpus * sizeof(struct perf_counts_values))));
+ xyarray__reset(counts->values);
}
-void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus)
+void perf_evsel__reset_counts(struct perf_evsel *evsel)
{
- perf_counts__reset(evsel->counts, ncpus);
+ perf_counts__reset(evsel->counts);
}
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
{
- evsel->counts = perf_counts__new(ncpus);
+ evsel->counts = perf_counts__new(ncpus, nthreads);
return evsel->counts != NULL ? 0 : -ENOMEM;
}
@@ -130,3 +145,96 @@
perf_counts__delete(evsel->counts);
evsel->counts = NULL;
}
+
+void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
+{
+ int i;
+ struct perf_stat *ps = evsel->priv;
+
+ for (i = 0; i < 3; i++)
+ init_stats(&ps->res_stats[i]);
+
+ perf_stat_evsel_id_init(evsel);
+}
+
+int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
+{
+ evsel->priv = zalloc(sizeof(struct perf_stat));
+ if (evsel->priv == NULL)
+ return -ENOMEM;
+ perf_evsel__reset_stat_priv(evsel);
+ return 0;
+}
+
+void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
+{
+ zfree(&evsel->priv);
+}
+
+int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
+ int ncpus, int nthreads)
+{
+ struct perf_counts *counts;
+
+ counts = perf_counts__new(ncpus, nthreads);
+ if (counts)
+ evsel->prev_raw_counts = counts;
+
+ return counts ? 0 : -ENOMEM;
+}
+
+void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
+{
+ perf_counts__delete(evsel->prev_raw_counts);
+ evsel->prev_raw_counts = NULL;
+}
+
+int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw)
+{
+ int ncpus = perf_evsel__nr_cpus(evsel);
+ int nthreads = thread_map__nr(evsel->threads);
+
+ if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
+ perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 ||
+ (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0))
+ return -ENOMEM;
+
+ return 0;
+}
+
+int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(evlist, evsel) {
+ if (perf_evsel__alloc_stats(evsel, alloc_raw))
+ goto out_free;
+ }
+
+ return 0;
+
+out_free:
+ perf_evlist__free_stats(evlist);
+ return -1;
+}
+
+void perf_evlist__free_stats(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(evlist, evsel) {
+ perf_evsel__free_stat_priv(evsel);
+ perf_evsel__free_counts(evsel);
+ perf_evsel__free_prev_raw_counts(evsel);
+ }
+}
+
+void perf_evlist__reset_stats(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(evlist, evsel) {
+ perf_evsel__reset_stat_priv(evsel);
+ perf_evsel__reset_counts(evsel);
+ }
+}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 093dc3c..1cfbe0a 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <stdio.h>
+#include "xyarray.h"
struct stats
{
@@ -29,8 +30,32 @@
AGGR_GLOBAL,
AGGR_SOCKET,
AGGR_CORE,
+ AGGR_THREAD,
};
+struct perf_counts_values {
+ union {
+ struct {
+ u64 val;
+ u64 ena;
+ u64 run;
+ };
+ u64 values[3];
+ };
+};
+
+struct perf_counts {
+ s8 scaled;
+ struct perf_counts_values aggr;
+ struct xyarray *values;
+};
+
+static inline struct perf_counts_values*
+perf_counts(struct perf_counts *counts, int cpu, int thread)
+{
+ return xyarray__entry(counts->values, cpu, thread);
+}
+
void update_stats(struct stats *stats, u64 val);
double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);
@@ -46,6 +71,8 @@
}
struct perf_evsel;
+struct perf_evlist;
+
bool __perf_evsel_stat__is(struct perf_evsel *evsel,
enum perf_stat_evsel_id id);
@@ -62,10 +89,24 @@
void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
double avg, int cpu, enum aggr_mode aggr);
-struct perf_counts *perf_counts__new(int ncpus);
+struct perf_counts *perf_counts__new(int ncpus, int nthreads);
void perf_counts__delete(struct perf_counts *counts);
-void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
+void perf_evsel__reset_counts(struct perf_evsel *evsel);
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
void perf_evsel__free_counts(struct perf_evsel *evsel);
+
+void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
+int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
+void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
+
+int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
+ int ncpus, int nthreads);
+void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel);
+
+int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
+
+int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
+void perf_evlist__free_stats(struct perf_evlist *evlist);
+void perf_evlist__reset_stats(struct perf_evlist *evlist);
#endif
diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
index 283d3e7..eec6c11 100644
--- a/tools/perf/util/svghelper.c
+++ b/tools/perf/util/svghelper.c
@@ -748,7 +748,7 @@
set_bit(c, cpumask_bits(b));
}
- cpu_map__delete(m);
+ cpu_map__put(m);
return ret;
}
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 504f2d7..48b588c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1132,8 +1132,11 @@
INIT_LIST_HEAD(&md.maps);
fd = open(kcore_filename, O_RDONLY);
- if (fd < 0)
+ if (fd < 0) {
+ pr_err("%s requires CAP_SYS_RAWIO capability to access.\n",
+ kcore_filename);
return -EINVAL;
+ }
/* Read new maps into temporary lists */
err = file__read_maps(fd, md.type == MAP__FUNCTION, kcore_mapfn, &md,
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index f4822bd..da7646d 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -8,8 +8,11 @@
#include <unistd.h>
#include "strlist.h"
#include <string.h>
+#include <api/fs/fs.h>
+#include "asm/bug.h"
#include "thread_map.h"
#include "util.h"
+#include "debug.h"
/* Skip "." and ".." directories */
static int filter(const struct dirent *dir)
@@ -20,11 +23,26 @@
return 1;
}
+static void thread_map__reset(struct thread_map *map, int start, int nr)
+{
+ size_t size = (nr - start) * sizeof(map->map[0]);
+
+ memset(&map->map[start], 0, size);
+}
+
static struct thread_map *thread_map__realloc(struct thread_map *map, int nr)
{
- size_t size = sizeof(*map) + sizeof(pid_t) * nr;
+ size_t size = sizeof(*map) + sizeof(map->map[0]) * nr;
+ int start = map ? map->nr : 0;
- return realloc(map, size);
+ map = realloc(map, size);
+ /*
+ * We only realloc to add more items, let's reset new items.
+ */
+ if (map)
+ thread_map__reset(map, start, nr);
+
+ return map;
}
#define thread_map__alloc(__nr) thread_map__realloc(NULL, __nr)
@@ -45,8 +63,9 @@
threads = thread_map__alloc(items);
if (threads != NULL) {
for (i = 0; i < items; i++)
- threads->map[i] = atoi(namelist[i]->d_name);
+ thread_map__set_pid(threads, i, atoi(namelist[i]->d_name));
threads->nr = items;
+ atomic_set(&threads->refcnt, 1);
}
for (i=0; i<items; i++)
@@ -61,8 +80,9 @@
struct thread_map *threads = thread_map__alloc(1);
if (threads != NULL) {
- threads->map[0] = tid;
- threads->nr = 1;
+ thread_map__set_pid(threads, 0, tid);
+ threads->nr = 1;
+ atomic_set(&threads->refcnt, 1);
}
return threads;
@@ -84,6 +104,7 @@
goto out_free_threads;
threads->nr = 0;
+ atomic_set(&threads->refcnt, 1);
while (!readdir_r(proc, &dirent, &next) && next) {
char *end;
@@ -123,8 +144,10 @@
threads = tmp;
}
- for (i = 0; i < items; i++)
- threads->map[threads->nr + i] = atoi(namelist[i]->d_name);
+ for (i = 0; i < items; i++) {
+ thread_map__set_pid(threads, threads->nr + i,
+ atoi(namelist[i]->d_name));
+ }
for (i = 0; i < items; i++)
zfree(&namelist[i]);
@@ -201,7 +224,7 @@
threads = nt;
for (i = 0; i < items; i++) {
- threads->map[j++] = atoi(namelist[i]->d_name);
+ thread_map__set_pid(threads, j++, atoi(namelist[i]->d_name));
zfree(&namelist[i]);
}
threads->nr = total_tasks;
@@ -210,6 +233,8 @@
out:
strlist__delete(slist);
+ if (threads)
+ atomic_set(&threads->refcnt, 1);
return threads;
out_free_namelist:
@@ -227,8 +252,9 @@
struct thread_map *threads = thread_map__alloc(1);
if (threads != NULL) {
- threads->map[0] = -1;
- threads->nr = 1;
+ thread_map__set_pid(threads, 0, -1);
+ threads->nr = 1;
+ atomic_set(&threads->refcnt, 1);
}
return threads;
}
@@ -267,10 +293,12 @@
goto out_free_threads;
threads = nt;
- threads->map[ntasks - 1] = tid;
- threads->nr = ntasks;
+ thread_map__set_pid(threads, ntasks - 1, tid);
+ threads->nr = ntasks;
}
out:
+ if (threads)
+ atomic_set(&threads->refcnt, 1);
return threads;
out_free_threads:
@@ -290,9 +318,30 @@
return thread_map__new_by_tid_str(tid);
}
-void thread_map__delete(struct thread_map *threads)
+static void thread_map__delete(struct thread_map *threads)
{
- free(threads);
+ if (threads) {
+ int i;
+
+ WARN_ONCE(atomic_read(&threads->refcnt) != 0,
+ "thread map refcnt unbalanced\n");
+ for (i = 0; i < threads->nr; i++)
+ free(thread_map__comm(threads, i));
+ free(threads);
+ }
+}
+
+struct thread_map *thread_map__get(struct thread_map *map)
+{
+ if (map)
+ atomic_inc(&map->refcnt);
+ return map;
+}
+
+void thread_map__put(struct thread_map *map)
+{
+ if (map && atomic_dec_and_test(&map->refcnt))
+ thread_map__delete(map);
}
size_t thread_map__fprintf(struct thread_map *threads, FILE *fp)
@@ -301,7 +350,60 @@
size_t printed = fprintf(fp, "%d thread%s: ",
threads->nr, threads->nr > 1 ? "s" : "");
for (i = 0; i < threads->nr; ++i)
- printed += fprintf(fp, "%s%d", i ? ", " : "", threads->map[i]);
+ printed += fprintf(fp, "%s%d", i ? ", " : "", thread_map__pid(threads, i));
return printed + fprintf(fp, "\n");
}
+
+static int get_comm(char **comm, pid_t pid)
+{
+ char *path;
+ size_t size;
+ int err;
+
+ if (asprintf(&path, "%s/%d/comm", procfs__mountpoint(), pid) == -1)
+ return -ENOMEM;
+
+ err = filename__read_str(path, comm, &size);
+ if (!err) {
+ /*
+ * We're reading 16 bytes, while filename__read_str
+ * allocates data per BUFSIZ bytes, so we can safely
+ * mark the end of the string.
+ */
+ (*comm)[size] = 0;
+ rtrim(*comm);
+ }
+
+ free(path);
+ return err;
+}
+
+static void comm_init(struct thread_map *map, int i)
+{
+ pid_t pid = thread_map__pid(map, i);
+ char *comm = NULL;
+
+ /* dummy pid comm initialization */
+ if (pid == -1) {
+ map->map[i].comm = strdup("dummy");
+ return;
+ }
+
+ /*
+ * The comm name is like extra bonus ;-),
+ * so just warn if we fail for any reason.
+ */
+ if (get_comm(&comm, pid))
+ pr_warning("Couldn't resolve comm name for pid %d\n", pid);
+
+ map->map[i].comm = comm;
+}
+
+void thread_map__read_comms(struct thread_map *threads)
+{
+ int i;
+
+ for (i = 0; i < threads->nr; ++i)
+ comm_init(threads, i);
+}
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 95313f4..af679d8 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -3,10 +3,17 @@
#include <sys/types.h>
#include <stdio.h>
+#include <linux/atomic.h>
+
+struct thread_map_data {
+ pid_t pid;
+ char *comm;
+};
struct thread_map {
+ atomic_t refcnt;
int nr;
- pid_t map[];
+ struct thread_map_data map[];
};
struct thread_map *thread_map__new_dummy(void);
@@ -15,11 +22,12 @@
struct thread_map *thread_map__new_by_uid(uid_t uid);
struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
+struct thread_map *thread_map__get(struct thread_map *map);
+void thread_map__put(struct thread_map *map);
+
struct thread_map *thread_map__new_str(const char *pid,
const char *tid, uid_t uid);
-void thread_map__delete(struct thread_map *threads);
-
size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
static inline int thread_map__nr(struct thread_map *threads)
@@ -27,4 +35,21 @@
return threads ? threads->nr : 1;
}
+static inline pid_t thread_map__pid(struct thread_map *map, int thread)
+{
+ return map->map[thread].pid;
+}
+
+static inline void
+thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
+{
+ map->map[thread].pid = pid;
+}
+
+static inline char *thread_map__comm(struct thread_map *map, int thread)
+{
+ return map->map[thread].comm;
+}
+
+void thread_map__read_comms(struct thread_map *threads);
#endif /* __PERF_THREAD_MAP_H */
diff --git a/tools/power/acpi/common/getopt.c b/tools/power/acpi/common/getopt.c
index 5da129e..326e826 100644
--- a/tools/power/acpi/common/getopt.c
+++ b/tools/power/acpi/common/getopt.c
@@ -127,7 +127,7 @@
argv[acpi_gbl_optind][0] != '-' ||
argv[acpi_gbl_optind][1] == '\0') {
return (ACPI_OPT_END);
- } else if (ACPI_STRCMP(argv[acpi_gbl_optind], "--") == 0) {
+ } else if (strcmp(argv[acpi_gbl_optind], "--") == 0) {
acpi_gbl_optind++;
return (ACPI_OPT_END);
}
@@ -140,7 +140,7 @@
/* Make sure that the option is legal */
if (current_char == ':' ||
- (opts_ptr = ACPI_STRCHR(opts, current_char)) == NULL) {
+ (opts_ptr = strchr(opts, current_char)) == NULL) {
ACPI_OPTION_ERROR("Illegal option: -", current_char);
if (argv[acpi_gbl_optind][++current_char_ptr] == '\0') {
diff --git a/tools/power/acpi/man/acpidump.8 b/tools/power/acpi/man/acpidump.8
index 38f095d..79e2d1d 100644
--- a/tools/power/acpi/man/acpidump.8
+++ b/tools/power/acpi/man/acpidump.8
@@ -22,9 +22,6 @@
.B \-b
Dump tables to binary files
.TP
-.B \-c
-Dump customized tables
-.TP
.B \-h \-?
This help message
.TP
@@ -48,15 +45,25 @@
.B \-a <Address>
Get table via a physical address
.TP
+.B \-c <on|off>
+Turning on/off customized table dumping
+.TP
.B \-f <BinaryFile>
Get table via a binary file
.TP
.B \-n <Signature>
Get table via a name/signature
.TP
-Invocation without parameters dumps all available tables
+.B \-x
+Do not use but dump XSDT
.TP
-Multiple mixed instances of -a, -f, and -n are supported
+.B \-x \-x
+Do not use or dump XSDT
+.TP
+.fi
+Invocation without parameters dumps all available tables.
+.TP
+Multiple mixed instances of -a, -f, and -n are supported.
.SH EXAMPLES
diff --git a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
index db15c9d..dd5008b 100644
--- a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
+++ b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
@@ -222,7 +222,7 @@
goto exit;
}
- ACPI_MEMCPY(local_table, mapped_table, table_length);
+ memcpy(local_table, mapped_table, table_length);
exit:
osl_unmap_table(mapped_table);
@@ -531,7 +531,7 @@
gbl_rsdp_address =
rsdp_base + (ACPI_CAST8(mapped_table) - rsdp_address);
- ACPI_MEMCPY(&gbl_rsdp, mapped_table, sizeof(struct acpi_table_rsdp));
+ memcpy(&gbl_rsdp, mapped_table, sizeof(struct acpi_table_rsdp));
acpi_os_unmap_memory(rsdp_address, rsdp_size);
return (AE_OK);
@@ -582,65 +582,68 @@
return (AE_OK);
}
- /* Get RSDP from memory */
-
- status = osl_load_rsdp();
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Get XSDT from memory */
-
- if (gbl_rsdp.revision && !gbl_do_not_dump_xsdt) {
- if (gbl_xsdt) {
- free(gbl_xsdt);
- gbl_xsdt = NULL;
- }
-
- gbl_revision = 2;
- status = osl_get_bios_table(ACPI_SIG_XSDT, 0,
- ACPI_CAST_PTR(struct
- acpi_table_header *,
- &gbl_xsdt), &address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- /* Get RSDT from memory */
-
- if (gbl_rsdp.rsdt_physical_address) {
- if (gbl_rsdt) {
- free(gbl_rsdt);
- gbl_rsdt = NULL;
- }
-
- status = osl_get_bios_table(ACPI_SIG_RSDT, 0,
- ACPI_CAST_PTR(struct
- acpi_table_header *,
- &gbl_rsdt), &address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- /* Get FADT from memory */
-
- if (gbl_fadt) {
- free(gbl_fadt);
- gbl_fadt = NULL;
- }
-
- status = osl_get_bios_table(ACPI_SIG_FADT, 0,
- ACPI_CAST_PTR(struct acpi_table_header *,
- &gbl_fadt),
- &gbl_fadt_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
if (!gbl_dump_customized_tables) {
+ /* Get RSDP from memory */
+
+ status = osl_load_rsdp();
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Get XSDT from memory */
+
+ if (gbl_rsdp.revision && !gbl_do_not_dump_xsdt) {
+ if (gbl_xsdt) {
+ free(gbl_xsdt);
+ gbl_xsdt = NULL;
+ }
+
+ gbl_revision = 2;
+ status = osl_get_bios_table(ACPI_SIG_XSDT, 0,
+ ACPI_CAST_PTR(struct
+ acpi_table_header
+ *, &gbl_xsdt),
+ &address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /* Get RSDT from memory */
+
+ if (gbl_rsdp.rsdt_physical_address) {
+ if (gbl_rsdt) {
+ free(gbl_rsdt);
+ gbl_rsdt = NULL;
+ }
+
+ status = osl_get_bios_table(ACPI_SIG_RSDT, 0,
+ ACPI_CAST_PTR(struct
+ acpi_table_header
+ *, &gbl_rsdt),
+ &address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /* Get FADT from memory */
+
+ if (gbl_fadt) {
+ free(gbl_fadt);
+ gbl_fadt = NULL;
+ }
+
+ status = osl_get_bios_table(ACPI_SIG_FADT, 0,
+ ACPI_CAST_PTR(struct
+ acpi_table_header *,
+ &gbl_fadt),
+ &gbl_fadt_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
/* Add mandatory tables to global table list first */
status = osl_add_table_to_list(ACPI_RSDP_NAME, 0);
@@ -961,7 +964,7 @@
goto exit;
}
- ACPI_MEMCPY(local_table, mapped_table, table_length);
+ memcpy(local_table, mapped_table, table_length);
*address = table_address;
*table = local_table;
diff --git a/tools/power/acpi/os_specific/service_layers/osunixmap.c b/tools/power/acpi/os_specific/service_layers/osunixmap.c
index 0b1fa29..44ad488 100644
--- a/tools/power/acpi/os_specific/service_layers/osunixmap.c
+++ b/tools/power/acpi/os_specific/service_layers/osunixmap.c
@@ -54,7 +54,7 @@
#ifndef O_BINARY
#define O_BINARY 0
#endif
-#ifdef _free_BSD
+#if defined(_dragon_fly) || defined(_free_BSD)
#define MMAP_FLAGS MAP_SHARED
#else
#define MMAP_FLAGS MAP_PRIVATE
diff --git a/tools/power/acpi/tools/acpidump/acpidump.h b/tools/power/acpi/tools/acpidump/acpidump.h
index 84bdef0..eed5344 100644
--- a/tools/power/acpi/tools/acpidump/acpidump.h
+++ b/tools/power/acpi/tools/acpidump/acpidump.h
@@ -66,7 +66,7 @@
EXTERN u8 INIT_GLOBAL(gbl_summary_mode, FALSE);
EXTERN u8 INIT_GLOBAL(gbl_verbose_mode, FALSE);
EXTERN u8 INIT_GLOBAL(gbl_binary_mode, FALSE);
-EXTERN u8 INIT_GLOBAL(gbl_dump_customized_tables, FALSE);
+EXTERN u8 INIT_GLOBAL(gbl_dump_customized_tables, TRUE);
EXTERN u8 INIT_GLOBAL(gbl_do_not_dump_xsdt, FALSE);
EXTERN ACPI_FILE INIT_GLOBAL(gbl_output_file, NULL);
EXTERN char INIT_GLOBAL(*gbl_output_filename, NULL);
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
index c736adf..61d0de8 100644
--- a/tools/power/acpi/tools/acpidump/apdump.c
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -329,7 +329,7 @@
acpi_status status;
int table_status;
- if (ACPI_STRLEN(signature) != ACPI_NAME_SIZE) {
+ if (strlen(signature) != ACPI_NAME_SIZE) {
acpi_log_error
("Invalid table signature [%s]: must be exactly 4 characters\n",
signature);
@@ -338,15 +338,15 @@
/* Table signatures are expected to be uppercase */
- ACPI_STRCPY(local_signature, signature);
+ strcpy(local_signature, signature);
acpi_ut_strupr(local_signature);
/* To be friendly, handle tables whose signatures do not match the name */
if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
- ACPI_STRCPY(local_signature, ACPI_SIG_FADT);
+ strcpy(local_signature, ACPI_SIG_FADT);
} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
- ACPI_STRCPY(local_signature, ACPI_SIG_MADT);
+ strcpy(local_signature, ACPI_SIG_MADT);
}
/* Dump all instances of this signature (to handle multiple SSDTs) */
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index 8f2fe16..a37f970 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -136,10 +136,10 @@
} else {
ACPI_MOVE_NAME(filename, table->signature);
}
- filename[0] = (char)ACPI_TOLOWER(filename[0]);
- filename[1] = (char)ACPI_TOLOWER(filename[1]);
- filename[2] = (char)ACPI_TOLOWER(filename[2]);
- filename[3] = (char)ACPI_TOLOWER(filename[3]);
+ filename[0] = (char)tolower((int)filename[0]);
+ filename[1] = (char)tolower((int)filename[1]);
+ filename[2] = (char)tolower((int)filename[2]);
+ filename[3] = (char)tolower((int)filename[3]);
filename[ACPI_NAME_SIZE] = 0;
/* Handle multiple SSDts - create different filenames for each */
@@ -147,10 +147,10 @@
if (instance > 0) {
acpi_ut_snprintf(instance_str, sizeof(instance_str), "%u",
instance);
- ACPI_STRCAT(filename, instance_str);
+ strcat(filename, instance_str);
}
- ACPI_STRCAT(filename, ACPI_TABLE_FILE_SUFFIX);
+ strcat(filename, ACPI_TABLE_FILE_SUFFIX);
if (gbl_verbose_mode) {
acpi_log_error
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
index d0ba653..57620f6 100644
--- a/tools/power/acpi/tools/acpidump/apmain.c
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -80,7 +80,7 @@
u32 current_action = 0;
#define AP_UTILITY_NAME "ACPI Binary Table Dump Utility"
-#define AP_SUPPORTED_OPTIONS "?a:bcf:hn:o:r:svxz"
+#define AP_SUPPORTED_OPTIONS "?a:bc:f:hn:o:r:svxz"
/******************************************************************************
*
@@ -96,7 +96,6 @@
ACPI_USAGE_HEADER("acpidump [options]");
ACPI_OPTION("-b", "Dump tables to binary files");
- ACPI_OPTION("-c", "Dump customized tables");
ACPI_OPTION("-h -?", "This help message");
ACPI_OPTION("-o <File>", "Redirect output to file");
ACPI_OPTION("-r <Address>", "Dump tables from specified RSDP");
@@ -107,6 +106,7 @@
ACPI_USAGE_TEXT("\nTable Options:\n");
ACPI_OPTION("-a <Address>", "Get table via a physical address");
+ ACPI_OPTION("-c <on|off>", "Turning on/off customized table dumping");
ACPI_OPTION("-f <BinaryFile>", "Get table via a binary file");
ACPI_OPTION("-n <Signature>", "Get table via a name/signature");
ACPI_OPTION("-x", "Do not use but dump XSDT");
@@ -181,7 +181,16 @@
case 'c': /* Dump customized tables */
- gbl_dump_customized_tables = TRUE;
+ if (!strcmp(acpi_gbl_optarg, "on")) {
+ gbl_dump_customized_tables = TRUE;
+ } else if (!strcmp(acpi_gbl_optarg, "off")) {
+ gbl_dump_customized_tables = FALSE;
+ } else {
+ acpi_log_error
+ ("%s: Cannot handle this switch, please use on|off\n",
+ acpi_gbl_optarg);
+ return (-1);
+ }
continue;
case 'h':
diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild
index 8e9b645..f56914c 100644
--- a/tools/testing/nvdimm/Kbuild
+++ b/tools/testing/nvdimm/Kbuild
@@ -1,3 +1,6 @@
+ldflags-y += --wrap=ioremap_wt
+ldflags-y += --wrap=ioremap_wc
+ldflags-y += --wrap=devm_ioremap_nocache
ldflags-y += --wrap=ioremap_cache
ldflags-y += --wrap=ioremap_nocache
ldflags-y += --wrap=iounmap
diff --git a/tools/testing/nvdimm/test/iomap.c b/tools/testing/nvdimm/test/iomap.c
index c85a6f6..64bfaa5 100644
--- a/tools/testing/nvdimm/test/iomap.c
+++ b/tools/testing/nvdimm/test/iomap.c
@@ -65,6 +65,21 @@
return fallback_fn(offset, size);
}
+void __iomem *__wrap_devm_ioremap_nocache(struct device *dev,
+ resource_size_t offset, unsigned long size)
+{
+ struct nfit_test_resource *nfit_res;
+
+ rcu_read_lock();
+ nfit_res = get_nfit_res(offset);
+ rcu_read_unlock();
+ if (nfit_res)
+ return (void __iomem *) nfit_res->buf + offset
+ - nfit_res->res->start;
+ return devm_ioremap_nocache(dev, offset, size);
+}
+EXPORT_SYMBOL(__wrap_devm_ioremap_nocache);
+
void __iomem *__wrap_ioremap_cache(resource_size_t offset, unsigned long size)
{
return __nfit_test_ioremap(offset, size, ioremap_cache);
@@ -77,6 +92,18 @@
}
EXPORT_SYMBOL(__wrap_ioremap_nocache);
+void __iomem *__wrap_ioremap_wt(resource_size_t offset, unsigned long size)
+{
+ return __nfit_test_ioremap(offset, size, ioremap_wt);
+}
+EXPORT_SYMBOL(__wrap_ioremap_wt);
+
+void __iomem *__wrap_ioremap_wc(resource_size_t offset, unsigned long size)
+{
+ return __nfit_test_ioremap(offset, size, ioremap_wc);
+}
+EXPORT_SYMBOL(__wrap_ioremap_wc);
+
void __wrap_iounmap(volatile void __iomem *addr)
{
struct nfit_test_resource *nfit_res;
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 4b69b83..d0bdae4 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -128,6 +128,8 @@
int num_pm;
void **dimm;
dma_addr_t *dimm_dma;
+ void **flush;
+ dma_addr_t *flush_dma;
void **label;
dma_addr_t *label_dma;
void **spa_set;
@@ -155,7 +157,7 @@
int i, rc;
if (!nfit_mem || !test_bit(cmd, &nfit_mem->dsm_mask))
- return -ENXIO;
+ return -ENOTTY;
/* lookup label space for the given dimm */
for (i = 0; i < ARRAY_SIZE(handle); i++)
@@ -331,7 +333,8 @@
+ sizeof(struct acpi_nfit_system_address) * NUM_SPA
+ sizeof(struct acpi_nfit_memory_map) * NUM_MEM
+ sizeof(struct acpi_nfit_control_region) * NUM_DCR
- + sizeof(struct acpi_nfit_data_region) * NUM_BDW;
+ + sizeof(struct acpi_nfit_data_region) * NUM_BDW
+ + sizeof(struct acpi_nfit_flush_address) * NUM_DCR;
int i;
t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma);
@@ -356,6 +359,10 @@
if (!t->label[i])
return -ENOMEM;
sprintf(t->label[i], "label%d", i);
+
+ t->flush[i] = test_alloc(t, 8, &t->flush_dma[i]);
+ if (!t->flush[i])
+ return -ENOMEM;
}
for (i = 0; i < NUM_DCR; i++) {
@@ -408,6 +415,7 @@
struct acpi_nfit_system_address *spa;
struct acpi_nfit_control_region *dcr;
struct acpi_nfit_data_region *bdw;
+ struct acpi_nfit_flush_address *flush;
unsigned int offset;
nfit_test_init_header(nfit_buf, size);
@@ -831,6 +839,39 @@
bdw->capacity = DIMM_SIZE;
bdw->start_address = 0;
+ offset = offset + sizeof(struct acpi_nfit_data_region) * 4;
+ /* flush0 (dimm0) */
+ flush = nfit_buf + offset;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[0];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[0];
+
+ /* flush1 (dimm1) */
+ flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 1;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[1];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[1];
+
+ /* flush2 (dimm2) */
+ flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 2;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[2];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[2];
+
+ /* flush3 (dimm3) */
+ flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 3;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[3];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[3];
+
acpi_desc = &t->acpi_desc;
set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en);
@@ -933,6 +974,10 @@
GFP_KERNEL);
nfit_test->dimm_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t),
GFP_KERNEL);
+ nfit_test->flush = devm_kcalloc(dev, num, sizeof(void *),
+ GFP_KERNEL);
+ nfit_test->flush_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t),
+ GFP_KERNEL);
nfit_test->label = devm_kcalloc(dev, num, sizeof(void *),
GFP_KERNEL);
nfit_test->label_dma = devm_kcalloc(dev, num,
@@ -943,7 +988,8 @@
sizeof(dma_addr_t), GFP_KERNEL);
if (nfit_test->dimm && nfit_test->dimm_dma && nfit_test->label
&& nfit_test->label_dma && nfit_test->dcr
- && nfit_test->dcr_dma)
+ && nfit_test->dcr_dma && nfit_test->flush
+ && nfit_test->flush_dma)
/* pass */;
else
return -ENOMEM;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 848af90..8b8a444 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -553,6 +553,8 @@
list_add(&kvm->vm_list, &vm_list);
spin_unlock(&kvm_lock);
+ preempt_notifier_inc();
+
return kvm;
out_err:
@@ -620,6 +622,7 @@
cleanup_srcu_struct(&kvm->irq_srcu);
cleanup_srcu_struct(&kvm->srcu);
kvm_arch_free_vm(kvm);
+ preempt_notifier_dec();
hardware_disable_all();
mmdrop(mm);
}