ide: remove the legacy ide driver
The legay ide driver has been replace with libata starting in 2003 and has
been scheduled for removal for a while. Finally kill it off so that we
can start cleaning up various bits of cruft it forced on the block layer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/Documentation/userspace-api/ioctl/hdio.rst b/Documentation/userspace-api/ioctl/hdio.rst
index 817371b..6ee8fc8 100644
--- a/Documentation/userspace-api/ioctl/hdio.rst
+++ b/Documentation/userspace-api/ioctl/hdio.rst
@@ -7,8 +7,8 @@
November, 2004
This document attempts to describe the ioctl(2) calls supported by
-the HD/IDE layer. These are by-and-large implemented (as of Linux 2.6)
-in drivers/ide/ide.c and drivers/block/scsi_ioctl.c
+the HD/IDE layer. These are by-and-large implemented (as of Linux 5.11)
+drivers/ata/libata-scsi.c.
ioctl values are listed in <linux/hdreg.h>. As of this writing, they
are as follows:
@@ -17,50 +17,17 @@
======================= =======================================
HDIO_GETGEO get device geometry
- HDIO_GET_UNMASKINTR get current unmask setting
- HDIO_GET_MULTCOUNT get current IDE blockmode setting
- HDIO_GET_QDMA get use-qdma flag
- HDIO_SET_XFER set transfer rate via proc
- HDIO_OBSOLETE_IDENTITY OBSOLETE, DO NOT USE
- HDIO_GET_KEEPSETTINGS get keep-settings-on-reset flag
HDIO_GET_32BIT get current io_32bit setting
- HDIO_GET_NOWERR get ignore-write-error flag
- HDIO_GET_DMA get use-dma flag
- HDIO_GET_NICE get nice flags
HDIO_GET_IDENTITY get IDE identification info
- HDIO_GET_WCACHE get write cache mode on|off
- HDIO_GET_ACOUSTIC get acoustic value
- HDIO_GET_ADDRESS get sector addressing mode
- HDIO_GET_BUSSTATE get the bus state of the hwif
- HDIO_TRISTATE_HWIF execute a channel tristate
- HDIO_DRIVE_RESET execute a device reset
HDIO_DRIVE_TASKFILE execute raw taskfile
HDIO_DRIVE_TASK execute task and special drive command
HDIO_DRIVE_CMD execute a special drive command
- HDIO_DRIVE_CMD_AEB HDIO_DRIVE_TASK
======================= =======================================
ioctls that pass non-pointer values:
======================= =======================================
- HDIO_SET_MULTCOUNT change IDE blockmode
- HDIO_SET_UNMASKINTR permit other irqs during I/O
- HDIO_SET_KEEPSETTINGS keep ioctl settings on reset
HDIO_SET_32BIT change io_32bit flags
- HDIO_SET_NOWERR change ignore-write-error flag
- HDIO_SET_DMA change use-dma flag
- HDIO_SET_PIO_MODE reconfig interface to new speed
- HDIO_SCAN_HWIF register and (re)scan interface
- HDIO_SET_NICE set nice flags
- HDIO_UNREGISTER_HWIF unregister interface
- HDIO_SET_WCACHE change write cache enable-disable
- HDIO_SET_ACOUSTIC change acoustic behavior
- HDIO_SET_BUSSTATE set the bus state of the hwif
- HDIO_SET_QDMA change use-qdma flag
- HDIO_SET_ADDRESS change lba addressing modes
-
- HDIO_SET_IDE_SCSI Set scsi emulation mode on/off
- HDIO_SET_SCSI_IDE not implemented yet
======================= =======================================
@@ -137,143 +104,6 @@
-
-HDIO_GET_UNMASKINTR
- get current unmask setting
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_UNMASKINTR, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the drive's current unmask setting
-
-
-
-
-
-HDIO_SET_UNMASKINTR
- permit other irqs during I/O
-
-
- usage::
-
- unsigned long val;
-
- ioctl(fd, HDIO_SET_UNMASKINTR, val);
-
- inputs:
- New value for unmask flag
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
-
-HDIO_GET_MULTCOUNT
- get current IDE blockmode setting
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_MULTCOUNT, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current IDE block mode setting. This
- controls how many sectors the drive will transfer per
- interrupt.
-
-
-
-HDIO_SET_MULTCOUNT
- change IDE blockmode
-
-
- usage::
-
- int val;
-
- ioctl(fd, HDIO_SET_MULTCOUNT, val);
-
- inputs:
- New value for IDE block mode setting. This controls how many
- sectors the drive will transfer per interrupt.
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range supported by disk.
- - EBUSY Controller busy or blockmode already set.
- - EIO Drive did not accept new block mode.
-
- notes:
- Source code comments read::
-
- This is tightly woven into the driver->do_special cannot
- touch. DON'T do it again until a total personality rewrite
- is committed.
-
- If blockmode has already been set, this ioctl will fail with
- -EBUSY
-
-
-
-HDIO_GET_QDMA
- get use-qdma flag
-
-
- Not implemented, as of 2.6.8.1
-
-
-
-HDIO_SET_XFER
- set transfer rate via proc
-
-
- Not implemented, as of 2.6.8.1
-
-
-
-HDIO_OBSOLETE_IDENTITY
- OBSOLETE, DO NOT USE
-
-
- Same as HDIO_GET_IDENTITY (see below), except that it only
- returns the first 142 bytes of drive identity information.
-
-
-
HDIO_GET_IDENTITY
get IDE identification info
@@ -308,60 +138,6 @@
-HDIO_GET_KEEPSETTINGS
- get keep-settings-on-reset flag
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_KEEPSETTINGS, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current "keep settings" flag
-
-
-
- notes:
- When set, indicates that kernel should restore settings
- after a drive reset.
-
-
-
-HDIO_SET_KEEPSETTINGS
- keep ioctl settings on reset
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_SET_KEEPSETTINGS, val);
-
- inputs:
- New value for keep_settings flag
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
HDIO_GET_32BIT
get current io_32bit setting
@@ -387,288 +163,6 @@
-
-
-HDIO_GET_NOWERR
- get ignore-write-error flag
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_NOWERR, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current ignore-write-error flag
-
-
-
-
-
-HDIO_GET_DMA
- get use-dma flag
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_DMA, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current use-dma flag
-
-
-
-
-
-HDIO_GET_NICE
- get nice flags
-
-
- usage::
-
- long nice;
-
- ioctl(fd, HDIO_GET_NICE, &nice);
-
- inputs:
- none
-
-
-
- outputs:
- The drive's "nice" values.
-
-
-
- notes:
- Per-drive flags which determine when the system will give more
- bandwidth to other devices sharing the same IDE bus.
-
- See <linux/hdreg.h>, near symbol IDE_NICE_DSC_OVERLAP.
-
-
-
-
-HDIO_SET_NICE
- set nice flags
-
-
- usage::
-
- unsigned long nice;
-
- ...
- ioctl(fd, HDIO_SET_NICE, nice);
-
- inputs:
- bitmask of nice flags.
-
-
-
- outputs:
- none
-
-
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EPERM Flags other than DSC_OVERLAP and NICE_1 set.
- - EPERM DSC_OVERLAP specified but not supported by drive
-
- notes:
- This ioctl sets the DSC_OVERLAP and NICE_1 flags from values
- provided by the user.
-
- Nice flags are listed in <linux/hdreg.h>, starting with
- IDE_NICE_DSC_OVERLAP. These values represent shifts.
-
-
-
-
-
-HDIO_GET_WCACHE
- get write cache mode on|off
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_WCACHE, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current write cache mode
-
-
-
-
-
-HDIO_GET_ACOUSTIC
- get acoustic value
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_GET_ACOUSTIC, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current acoustic settings
-
-
-
- notes:
- See HDIO_SET_ACOUSTIC
-
-
-
-
-
-HDIO_GET_ADDRESS
- usage::
-
-
- long val;
-
- ioctl(fd, HDIO_GET_ADDRESS, &val);
-
- inputs:
- none
-
-
-
- outputs:
- The value of the current addressing mode:
-
- = ===================
- 0 28-bit
- 1 48-bit
- 2 48-bit doing 28-bit
- 3 64-bit
- = ===================
-
-
-
-HDIO_GET_BUSSTATE
- get the bus state of the hwif
-
-
- usage::
-
- long state;
-
- ioctl(fd, HDIO_SCAN_HWIF, &state);
-
- inputs:
- none
-
-
-
- outputs:
- Current power state of the IDE bus. One of BUSSTATE_OFF,
- BUSSTATE_ON, or BUSSTATE_TRISTATE
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_ADMIN
-
-
-
-
-HDIO_SET_BUSSTATE
- set the bus state of the hwif
-
-
- usage::
-
- int state;
-
- ...
- ioctl(fd, HDIO_SCAN_HWIF, state);
-
- inputs:
- Desired IDE power state. One of BUSSTATE_OFF, BUSSTATE_ON,
- or BUSSTATE_TRISTATE
-
- outputs:
- none
-
-
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_RAWIO
- - EOPNOTSUPP Hardware interface does not support bus power control
-
-
-
-
-HDIO_TRISTATE_HWIF
- execute a channel tristate
-
-
- Not implemented, as of 2.6.8.1. See HDIO_SET_BUSSTATE
-
-
-
-HDIO_DRIVE_RESET
- execute a device reset
-
-
- usage::
-
- int args[3]
-
- ...
- ioctl(fd, HDIO_DRIVE_RESET, args);
-
- inputs:
- none
-
-
-
- outputs:
- none
-
-
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - ENXIO No such device: phy dead or ctl_addr == 0
- - EIO I/O error: reset timed out or hardware error
-
- notes:
-
- - Execute a reset on the device as soon as the current IO
- operation has completed.
-
- - Executes an ATAPI soft reset if applicable, otherwise
- executes an ATA soft reset on the controller.
-
-
-
HDIO_DRIVE_TASKFILE
execute raw taskfile
@@ -1026,14 +520,6 @@
-HDIO_DRIVE_CMD_AEB
- HDIO_DRIVE_TASK
-
-
- Not implemented, as of 2.6.8.1
-
-
-
HDIO_SET_32BIT
change io_32bit flags
@@ -1059,284 +545,3 @@
- EACCES Access denied: requires CAP_SYS_ADMIN
- EINVAL value out of range [0 3]
- EBUSY Controller busy
-
-
-
-
-HDIO_SET_NOWERR
- change ignore-write-error flag
-
-
- usage::
-
- int val;
-
- ioctl(fd, HDIO_SET_NOWERR, val);
-
- inputs:
- New value for ignore-write-error flag. Used for ignoring
-
-
- WRERR_STAT
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
-HDIO_SET_DMA
- change use-dma flag
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_SET_DMA, val);
-
- inputs:
- New value for use-dma flag
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
-HDIO_SET_PIO_MODE
- reconfig interface to new speed
-
-
- usage::
-
- long val;
-
- ioctl(fd, HDIO_SET_PIO_MODE, val);
-
- inputs:
- New interface speed.
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 255]
- - EBUSY Controller busy
-
-
-
-HDIO_SCAN_HWIF
- register and (re)scan interface
-
-
- usage::
-
- int args[3]
-
- ...
- ioctl(fd, HDIO_SCAN_HWIF, args);
-
- inputs:
-
- ======= =========================
- args[0] io address to probe
-
-
- args[1] control address to probe
- args[2] irq number
- ======= =========================
-
- outputs:
- none
-
-
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_RAWIO
- - EIO Probe failed.
-
- notes:
- This ioctl initializes the addresses and irq for a disk
- controller, probes for drives, and creates /proc/ide
- interfaces as appropriate.
-
-
-
-HDIO_UNREGISTER_HWIF
- unregister interface
-
-
- usage::
-
- int index;
-
- ioctl(fd, HDIO_UNREGISTER_HWIF, index);
-
- inputs:
- index index of hardware interface to unregister
-
-
-
- outputs:
- none
-
-
-
- error returns:
- - EACCES Access denied: requires CAP_SYS_RAWIO
-
- notes:
- This ioctl removes a hardware interface from the kernel.
-
- Currently (2.6.8) this ioctl silently fails if any drive on
- the interface is busy.
-
-
-
-HDIO_SET_WCACHE
- change write cache enable-disable
-
-
- usage::
-
- int val;
-
- ioctl(fd, HDIO_SET_WCACHE, val);
-
- inputs:
- New value for write cache enable
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
-HDIO_SET_ACOUSTIC
- change acoustic behavior
-
-
- usage::
-
- int val;
-
- ioctl(fd, HDIO_SET_ACOUSTIC, val);
-
- inputs:
- New value for drive acoustic settings
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 254]
- - EBUSY Controller busy
-
-
-
-HDIO_SET_QDMA
- change use-qdma flag
-
-
- Not implemented, as of 2.6.8.1
-
-
-
-HDIO_SET_ADDRESS
- change lba addressing modes
-
-
- usage::
-
- int val;
-
- ioctl(fd, HDIO_SET_ADDRESS, val);
-
- inputs:
- New value for addressing mode
-
- = ===================
- 0 28-bit
- 1 48-bit
- 2 48-bit doing 28-bit
- = ===================
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 2]
- - EBUSY Controller busy
- - EIO Drive does not support lba48 mode.
-
-
-HDIO_SET_IDE_SCSI
- usage::
-
-
- long val;
-
- ioctl(fd, HDIO_SET_IDE_SCSI, val);
-
- inputs:
- New value for scsi emulation mode (?)
-
-
-
- outputs:
- none
-
-
-
- error return:
- - EINVAL Called on a partition instead of the whole disk device
- - EACCES Access denied: requires CAP_SYS_ADMIN
- - EINVAL value out of range [0 1]
- - EBUSY Controller busy
-
-
-
-HDIO_SET_SCSI_IDE
- Not implemented, as of 2.6.8.1