Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # Block device driver configuration |
| 3 | # |
| 4 | |
Jan Engelhardt | fd11d17 | 2007-07-10 12:26:06 +0200 | [diff] [blame] | 5 | menuconfig BLK_DEV |
| 6 | bool "Block devices" |
| 7 | depends on BLOCK |
| 8 | default y |
Jan Engelhardt | 06bfb7e | 2007-08-18 12:56:21 +0200 | [diff] [blame] | 9 | ---help--- |
| 10 | Say Y here to get to see options for various different block device |
| 11 | drivers. This option alone does not add any kernel code. |
| 12 | |
| 13 | If you say N, all options in this submenu will be skipped and disabled; |
| 14 | only do this if you know what you are doing. |
David Howells | 9361401 | 2006-09-30 20:45:40 +0200 | [diff] [blame] | 15 | |
Jan Engelhardt | fd11d17 | 2007-07-10 12:26:06 +0200 | [diff] [blame] | 16 | if BLK_DEV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | |
Jens Axboe | f2298c0 | 2013-10-25 11:52:25 +0100 | [diff] [blame] | 18 | config BLK_DEV_NULL_BLK |
| 19 | tristate "Null test block driver" |
Shaohua Li | 3bf2bd2 | 2017-08-14 15:04:53 -0700 | [diff] [blame] | 20 | depends on CONFIGFS_FS |
Jens Axboe | f2298c0 | 2013-10-25 11:52:25 +0100 | [diff] [blame] | 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | config BLK_DEV_FD |
| 23 | tristate "Normal floppy disk support" |
viro@ZenIV.linux.org.uk | a08b6b7 | 2005-09-06 01:48:42 +0100 | [diff] [blame] | 24 | depends on ARCH_MAY_HAVE_PC_FDC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | ---help--- |
| 26 | If you want to use the floppy disk drive(s) of your PC under Linux, |
| 27 | say Y. Information about this driver, especially important for IBM |
Randy Dunlap | 31c00fc | 2008-11-13 21:33:24 +0000 | [diff] [blame] | 28 | Thinkpad users, is contained in |
| 29 | <file:Documentation/blockdev/floppy.txt>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | That file also contains the location of the Floppy driver FAQ as |
| 31 | well as location of the fdutils package used to configure additional |
| 32 | parameters of the driver at run time. |
| 33 | |
| 34 | To compile this driver as a module, choose M here: the |
| 35 | module will be called floppy. |
| 36 | |
| 37 | config AMIGA_FLOPPY |
| 38 | tristate "Amiga floppy support" |
| 39 | depends on AMIGA |
| 40 | |
| 41 | config ATARI_FLOPPY |
| 42 | tristate "Atari floppy support" |
| 43 | depends on ATARI |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | config MAC_FLOPPY |
| 46 | tristate "Support for PowerMac floppy" |
| 47 | depends on PPC_PMAC && !PPC_PMAC64 |
| 48 | help |
| 49 | If you have a SWIM-3 (Super Woz Integrated Machine 3; from Apple) |
| 50 | floppy controller, say Y here. Most commonly found in PowerMacs. |
| 51 | |
Laurent Vivier | 8852ecd | 2008-11-15 16:10:10 +0100 | [diff] [blame] | 52 | config BLK_DEV_SWIM |
| 53 | tristate "Support for SWIM Macintosh floppy" |
| 54 | depends on M68K && MAC |
| 55 | help |
| 56 | You should select this option if you want floppy support |
| 57 | and you don't have a II, IIfx, Q900, Q950 or AV series. |
| 58 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | config AMIGA_Z2RAM |
| 60 | tristate "Amiga Zorro II ramdisk support" |
| 61 | depends on ZORRO |
| 62 | help |
| 63 | This enables support for using Chip RAM and Zorro II RAM as a |
| 64 | ramdisk or as a swap partition. Say Y if you want to include this |
| 65 | driver in the kernel. |
| 66 | |
| 67 | To compile this driver as a module, choose M here: the |
| 68 | module will be called z2ram. |
| 69 | |
Randy Dunlap | 2395e46 | 2010-05-11 09:02:55 +0200 | [diff] [blame] | 70 | config GDROM |
| 71 | tristate "SEGA Dreamcast GD-ROM drive" |
| 72 | depends on SH_DREAMCAST |
Christoph Hellwig | 72148ae | 2017-01-28 09:32:51 +0100 | [diff] [blame] | 73 | select BLK_SCSI_REQUEST # only for the generic cdrom code |
Randy Dunlap | 2395e46 | 2010-05-11 09:02:55 +0200 | [diff] [blame] | 74 | help |
| 75 | A standard SEGA Dreamcast comes with a modified CD ROM drive called a |
| 76 | "GD-ROM" by SEGA to signify it is capable of reading special disks |
| 77 | with up to 1 GB of data. This drive will also read standard CD ROM |
| 78 | disks. Select this option to access any disks in your GD ROM drive. |
| 79 | Most users will want to say "Y" here. |
| 80 | You can also build this as a module which will be called gdrom. |
| 81 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | config PARIDE |
| 83 | tristate "Parallel port IDE device support" |
Marko Kohtala | 6a19b41 | 2006-01-06 00:19:49 -0800 | [diff] [blame] | 84 | depends on PARPORT_PC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | ---help--- |
| 86 | There are many external CD-ROM and disk devices that connect through |
| 87 | your computer's parallel port. Most of them are actually IDE devices |
| 88 | using a parallel port IDE adapter. This option enables the PARIDE |
| 89 | subsystem which contains drivers for many of these external drives. |
Randy Dunlap | 31c00fc | 2008-11-13 21:33:24 +0000 | [diff] [blame] | 90 | Read <file:Documentation/blockdev/paride.txt> for more information. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | If you have said Y to the "Parallel-port support" configuration |
| 93 | option, you may share a single port between your printer and other |
| 94 | parallel port devices. Answer Y to build PARIDE support into your |
| 95 | kernel, or M if you would like to build it as a loadable module. If |
| 96 | your parallel port support is in a loadable module, you must build |
| 97 | PARIDE as a module. If you built PARIDE support into your kernel, |
| 98 | you may still build the individual protocol modules and high-level |
| 99 | drivers as loadable modules. If you build this support as a module, |
| 100 | it will be called paride. |
| 101 | |
| 102 | To use the PARIDE support, you must say Y or M here and also to at |
| 103 | least one high-level driver (e.g. "Parallel port IDE disks", |
| 104 | "Parallel port ATAPI CD-ROMs", "Parallel port ATAPI disks" etc.) and |
| 105 | to at least one protocol driver (e.g. "ATEN EH-100 protocol", |
| 106 | "MicroSolutions backpack protocol", "DataStor Commuter protocol" |
| 107 | etc.). |
| 108 | |
| 109 | source "drivers/block/paride/Kconfig" |
| 110 | |
Sam Bradshaw | 88523a6 | 2011-08-30 08:34:26 -0600 | [diff] [blame] | 111 | source "drivers/block/mtip32xx/Kconfig" |
| 112 | |
Minchan Kim | cd67e10 | 2014-01-30 15:45:52 -0800 | [diff] [blame] | 113 | source "drivers/block/zram/Kconfig" |
| 114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | config BLK_DEV_DAC960 |
| 116 | tristate "Mylex DAC960/DAC1100 PCI RAID Controller support" |
| 117 | depends on PCI |
| 118 | help |
| 119 | This driver adds support for the Mylex DAC960, AcceleRAID, and |
| 120 | eXtremeRAID PCI RAID controllers. See the file |
Randy Dunlap | 31c00fc | 2008-11-13 21:33:24 +0000 | [diff] [blame] | 121 | <file:Documentation/blockdev/README.DAC960> for further information |
| 122 | about this driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
| 124 | To compile this driver as a module, choose M here: the |
| 125 | module will be called DAC960. |
| 126 | |
| 127 | config BLK_DEV_UMEM |
Kees Cook | b897728 | 2012-10-23 14:01:51 -0600 | [diff] [blame] | 128 | tristate "Micro Memory MM5415 Battery Backed RAM support" |
| 129 | depends on PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | ---help--- |
| 131 | Saying Y here will include support for the MM5415 family of |
| 132 | battery backed (Non-volatile) RAM cards. |
| 133 | <http://www.umem.com/> |
| 134 | |
| 135 | The cards appear as block devices that can be partitioned into |
| 136 | as many as 15 partitions. |
| 137 | |
| 138 | To compile this driver as a module, choose M here: the |
| 139 | module will be called umem. |
| 140 | |
| 141 | The umem driver has not yet been allocated a MAJOR number, so |
Adrian Bunk | bf6ee0a | 2006-10-03 22:17:48 +0200 | [diff] [blame] | 142 | one is chosen dynamically. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | config BLK_DEV_UBD |
| 145 | bool "Virtual block device" |
| 146 | depends on UML |
| 147 | ---help--- |
| 148 | The User-Mode Linux port includes a driver called UBD which will let |
| 149 | you access arbitrary files on the host computer as block devices. |
| 150 | Unless you know that you do not need such virtual block devices say |
| 151 | Y here. |
| 152 | |
| 153 | config BLK_DEV_UBD_SYNC |
| 154 | bool "Always do synchronous disk IO for UBD" |
| 155 | depends on BLK_DEV_UBD |
| 156 | ---help--- |
| 157 | Writes to the virtual block device are not immediately written to the |
| 158 | host's disk; this may cause problems if, for example, the User-Mode |
| 159 | Linux 'Virtual Machine' uses a journalling filesystem and the host |
| 160 | computer crashes. |
| 161 | |
| 162 | Synchronous operation (i.e. always writing data to the host's disk |
| 163 | immediately) is configurable on a per-UBD basis by using a special |
| 164 | kernel command line option. Alternatively, you can say Y here to |
| 165 | turn on synchronous operation by default for all block devices. |
| 166 | |
| 167 | If you're running a journalling file system (like reiserfs, for |
| 168 | example) in your virtual machine, you will want to say Y here. If |
| 169 | you care for the safety of the data in your virtual machine, Y is a |
| 170 | wise choice too. In all other cases (for example, if you're just |
| 171 | playing around with User-Mode Linux) you can choose N. |
| 172 | |
| 173 | config BLK_DEV_COW_COMMON |
| 174 | bool |
| 175 | default BLK_DEV_UBD |
| 176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | config BLK_DEV_LOOP |
| 178 | tristate "Loopback device support" |
| 179 | ---help--- |
| 180 | Saying Y here will allow you to use a regular file as a block |
| 181 | device; you can then create a file system on that block device and |
| 182 | mount it just as you would mount other block devices such as hard |
| 183 | drive partitions, CD-ROM drives or floppy drives. The loop devices |
| 184 | are block special device files with major number 7 and typically |
| 185 | called /dev/loop0, /dev/loop1 etc. |
| 186 | |
| 187 | This is useful if you want to check an ISO 9660 file system before |
| 188 | burning the CD, or if you want to use floppy images without first |
| 189 | writing them to floppy. Furthermore, some Linux distributions avoid |
| 190 | the need for a dedicated Linux partition by keeping their complete |
| 191 | root file system inside a DOS FAT file using this loop device |
| 192 | driver. |
| 193 | |
| 194 | To use the loop device, you need the losetup utility, found in the |
| 195 | util-linux package, see |
SeongJae Park | 4f6cce3 | 2017-03-27 21:44:06 +0900 | [diff] [blame] | 196 | <https://www.kernel.org/pub/linux/utils/util-linux/>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
| 198 | The loop device driver can also be used to "hide" a file system in |
| 199 | a disk partition, floppy, or regular file, either using encryption |
| 200 | (scrambling the data) or steganography (hiding the data in the low |
| 201 | bits of, say, a sound file). This is also safe if the file resides |
| 202 | on a remote file server. |
| 203 | |
| 204 | There are several ways of encrypting disks. Some of these require |
| 205 | kernel patches. The vanilla kernel offers the cryptoloop option |
| 206 | and a Device Mapper target (which is superior, as it supports all |
| 207 | file systems). If you want to use the cryptoloop, say Y to both |
| 208 | LOOP and CRYPTOLOOP, and make sure you have a recent (version 2.12 |
| 209 | or later) version of util-linux. Additionally, be aware that |
| 210 | the cryptoloop is not safe for storing journaled filesystems. |
| 211 | |
| 212 | Note that this loop device has nothing to do with the loopback |
| 213 | device used for network connections from the machine to itself. |
| 214 | |
| 215 | To compile this driver as a module, choose M here: the |
| 216 | module will be called loop. |
| 217 | |
| 218 | Most users will answer N here. |
| 219 | |
Kay Sievers | d134b00 | 2011-07-31 22:08:04 +0200 | [diff] [blame] | 220 | config BLK_DEV_LOOP_MIN_COUNT |
| 221 | int "Number of loop devices to pre-create at init time" |
| 222 | depends on BLK_DEV_LOOP |
| 223 | default 8 |
| 224 | help |
| 225 | Static number of loop devices to be unconditionally pre-created |
| 226 | at init time. |
| 227 | |
| 228 | This default value can be overwritten on the kernel command |
| 229 | line or with module-parameter loop.max_loop. |
| 230 | |
| 231 | The historic default is 8. If a late 2011 version of losetup(8) |
| 232 | is used, it can be set to 0, since needed loop devices can be |
| 233 | dynamically allocated with the /dev/loop-control interface. |
| 234 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | config BLK_DEV_CRYPTOLOOP |
| 236 | tristate "Cryptoloop Support" |
| 237 | select CRYPTO |
Herbert Xu | 8df3b0a | 2006-12-02 14:36:03 +1100 | [diff] [blame] | 238 | select CRYPTO_CBC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | depends on BLK_DEV_LOOP |
| 240 | ---help--- |
| 241 | Say Y here if you want to be able to use the ciphers that are |
| 242 | provided by the CryptoAPI as loop transformation. This might be |
| 243 | used as hard disk encryption. |
| 244 | |
| 245 | WARNING: This device is not safe for journaled file systems like |
| 246 | ext3 or Reiserfs. Please use the Device Mapper crypto module |
| 247 | instead, which can be configured to be on-disk compatible with the |
| 248 | cryptoloop device. |
| 249 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 250 | source "drivers/block/drbd/Kconfig" |
| 251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | config BLK_DEV_NBD |
| 253 | tristate "Network block device support" |
| 254 | depends on NET |
| 255 | ---help--- |
| 256 | Saying Y here will allow your computer to be a client for network |
| 257 | block devices, i.e. it will be able to use block devices exported by |
| 258 | servers (mount file systems on them etc.). Communication between |
| 259 | client and server works over TCP/IP networking, but to the client |
| 260 | program this is hidden: it looks like a regular local file access to |
| 261 | a block device special file such as /dev/nd0. |
| 262 | |
| 263 | Network block devices also allows you to run a block-device in |
| 264 | userland (making server and client physically the same computer, |
| 265 | communicating using the loopback network device). |
| 266 | |
Randy Dunlap | 31c00fc | 2008-11-13 21:33:24 +0000 | [diff] [blame] | 267 | Read <file:Documentation/blockdev/nbd.txt> for more information, |
| 268 | especially about where to find the server code, which runs in user |
| 269 | space and does not need special kernel support. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | |
| 271 | Note that this has nothing to do with the network file systems NFS |
| 272 | or Coda; you can say N here even if you intend to use NFS or Coda. |
| 273 | |
| 274 | To compile this driver as a module, choose M here: the |
| 275 | module will be called nbd. |
| 276 | |
| 277 | If unsure, say N. |
| 278 | |
Akhil Bhansali | e67f86b | 2013-10-15 14:19:07 -0600 | [diff] [blame] | 279 | config BLK_DEV_SKD |
| 280 | tristate "STEC S1120 Block Driver" |
| 281 | depends on PCI |
| 282 | depends on 64BIT |
| 283 | ---help--- |
| 284 | Saying Y or M here will enable support for the |
| 285 | STEC, Inc. S1120 PCIe SSD. |
| 286 | |
| 287 | Use device /dev/skd$N amd /dev/skd$Np$M. |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | config BLK_DEV_SX8 |
| 290 | tristate "Promise SATA SX8 support" |
| 291 | depends on PCI |
| 292 | ---help--- |
| 293 | Saying Y or M here will enable support for the |
| 294 | Promise SATA SX8 controllers. |
| 295 | |
| 296 | Use devices /dev/sx8/$N and /dev/sx8/$Np$M. |
| 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | config BLK_DEV_RAM |
Nick Piggin | 9db5579 | 2008-02-08 04:19:49 -0800 | [diff] [blame] | 299 | tristate "RAM block device support" |
Dan Williams | 1647b9b | 2017-01-25 16:54:45 -0800 | [diff] [blame] | 300 | select DAX if BLK_DEV_RAM_DAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | ---help--- |
| 302 | Saying Y here will allow you to use a portion of your RAM memory as |
| 303 | a block device, so that you can make file systems on it, read and |
| 304 | write to it and do all the other things that you can do with normal |
| 305 | block devices (such as hard drives). It is usually used to load and |
| 306 | store a copy of a minimal root file system off of a floppy into RAM |
| 307 | during the initial install of Linux. |
| 308 | |
Randy Dunlap | 31c00fc | 2008-11-13 21:33:24 +0000 | [diff] [blame] | 309 | Note that the kernel command line option "ramdisk=XX" is now obsolete. |
| 310 | For details, read <file:Documentation/blockdev/ramdisk.txt>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | To compile this driver as a module, choose M here: the |
Fabian Frederick | a3b25d9 | 2014-01-23 15:53:46 -0800 | [diff] [blame] | 313 | module will be called brd. An alias "rd" has been defined |
| 314 | for historical reasons. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
| 316 | Most normal users won't need the RAM disk functionality, and can |
| 317 | thus say N here. |
| 318 | |
| 319 | config BLK_DEV_RAM_COUNT |
Adrian Bunk | a687fb1 | 2006-03-28 01:56:17 -0800 | [diff] [blame] | 320 | int "Default number of RAM disks" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | default "16" |
Adrian Bunk | a687fb1 | 2006-03-28 01:56:17 -0800 | [diff] [blame] | 322 | depends on BLK_DEV_RAM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | help |
Patrick Ringl | 2e977c8 | 2007-10-19 23:05:02 +0200 | [diff] [blame] | 324 | The default value is 16 RAM disks. Change this if you know what you |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | are doing. If you boot from a filesystem that needs to be extracted |
| 326 | in memory, you will need at least one RAM disk (e.g. root on cramfs). |
| 327 | |
| 328 | config BLK_DEV_RAM_SIZE |
| 329 | int "Default RAM disk size (kbytes)" |
| 330 | depends on BLK_DEV_RAM |
| 331 | default "4096" |
| 332 | help |
| 333 | The default value is 4096 kilobytes. Only change this if you know |
Patrick Ringl | 2e977c8 | 2007-10-19 23:05:02 +0200 | [diff] [blame] | 334 | what you are doing. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Matthew Wilcox | a7a97fc | 2015-02-16 15:59:41 -0800 | [diff] [blame] | 336 | config BLK_DEV_RAM_DAX |
| 337 | bool "Support Direct Access (DAX) to RAM block devices" |
| 338 | depends on BLK_DEV_RAM && FS_DAX |
Nick Piggin | 75acb9c | 2008-02-08 04:19:50 -0800 | [diff] [blame] | 339 | default n |
| 340 | help |
Matthew Wilcox | a7a97fc | 2015-02-16 15:59:41 -0800 | [diff] [blame] | 341 | Support filesystems using DAX to access RAM block devices. This |
| 342 | avoids double-buffering data in the page cache before copying it |
| 343 | to the block device. Answering Y will slightly enlarge the kernel, |
| 344 | and will prevent RAM block device backing store memory from being |
Nick Piggin | 75acb9c | 2008-02-08 04:19:50 -0800 | [diff] [blame] | 345 | allocated from highmem (only a problem for highmem systems). |
| 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | config CDROM_PKTCDVD |
Jens Axboe | 5a8b187 | 2016-11-21 09:33:17 -0700 | [diff] [blame] | 348 | tristate "Packet writing on CD/DVD media (DEPRECATED)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | depends on !UML |
Christoph Hellwig | 72148ae | 2017-01-28 09:32:51 +0100 | [diff] [blame] | 350 | select BLK_SCSI_REQUEST |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | help |
Jens Axboe | 5a8b187 | 2016-11-21 09:33:17 -0700 | [diff] [blame] | 352 | Note: This driver is deprecated and will be removed from the |
| 353 | kernel in the near future! |
| 354 | |
Thomas Maier | 2d4eeec5 | 2006-12-08 02:36:10 -0800 | [diff] [blame] | 355 | If you have a CDROM/DVD drive that supports packet writing, say |
| 356 | Y to include support. It should work with any MMC/Mt Fuji |
| 357 | compliant ATAPI or SCSI drive, which is just about any newer |
| 358 | DVD/CD writer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
Thomas Maier | 2d4eeec5 | 2006-12-08 02:36:10 -0800 | [diff] [blame] | 360 | Currently only writing to CD-RW, DVD-RW, DVD+RW and DVDRAM discs |
| 361 | is possible. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | DVD-RW disks must be in restricted overwrite mode. |
| 363 | |
Thomas Maier | 2d4eeec5 | 2006-12-08 02:36:10 -0800 | [diff] [blame] | 364 | See the file <file:Documentation/cdrom/packet-writing.txt> |
| 365 | for further information on the use of this driver. |
| 366 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | To compile this driver as a module, choose M here: the |
| 368 | module will be called pktcdvd. |
| 369 | |
| 370 | config CDROM_PKTCDVD_BUFFERS |
| 371 | int "Free buffers for data gathering" |
| 372 | depends on CDROM_PKTCDVD |
| 373 | default "8" |
| 374 | help |
| 375 | This controls the maximum number of active concurrent packets. More |
| 376 | concurrent packets can increase write performance, but also require |
| 377 | more memory. Each concurrent packet will require approximately 64Kb |
Peter Osterlund | e1bc89b | 2006-02-04 23:27:47 -0800 | [diff] [blame] | 378 | of non-swappable kernel memory, memory which will be allocated when |
| 379 | a disc is opened for writing. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
| 381 | config CDROM_PKTCDVD_WCACHE |
Kees Cook | b897728 | 2012-10-23 14:01:51 -0600 | [diff] [blame] | 382 | bool "Enable write caching" |
| 383 | depends on CDROM_PKTCDVD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | help |
| 385 | If enabled, write caching will be set for the CD-R/W device. For now |
| 386 | this option is dangerous unless the CD-RW media is known good, as we |
| 387 | don't do deferred write error handling yet. |
| 388 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | config ATA_OVER_ETH |
| 390 | tristate "ATA over Ethernet support" |
| 391 | depends on NET |
| 392 | help |
| 393 | This driver provides Support for ATA over Ethernet block |
| 394 | devices like the Coraid EtherDrive (R) Storage Blade. |
| 395 | |
David S. Miller | 667ef3c | 2007-07-16 04:03:56 -0700 | [diff] [blame] | 396 | config SUNVDC |
| 397 | tristate "Sun Virtual Disk Client support" |
| 398 | depends on SUN_LDOMS |
| 399 | help |
| 400 | Support for virtual disk devices as a client under Sun |
| 401 | Logical Domains. |
| 402 | |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 403 | source "drivers/s390/block/Kconfig" |
| 404 | |
Grant Likely | 74489a9 | 2007-07-17 04:03:39 -0700 | [diff] [blame] | 405 | config XILINX_SYSACE |
| 406 | tristate "Xilinx SystemACE support" |
Michal Simek | 6fa612b | 2009-05-11 15:49:12 +0200 | [diff] [blame] | 407 | depends on 4xx || MICROBLAZE |
Grant Likely | 74489a9 | 2007-07-17 04:03:39 -0700 | [diff] [blame] | 408 | help |
| 409 | Include support for the Xilinx SystemACE CompactFlash interface |
| 410 | |
Jeremy Fitzhardinge | 9f27ee5 | 2007-07-17 18:37:06 -0700 | [diff] [blame] | 411 | config XEN_BLKDEV_FRONTEND |
| 412 | tristate "Xen virtual block device support" |
| 413 | depends on XEN |
| 414 | default y |
Ian Campbell | 2de06cc | 2009-02-09 12:05:51 -0800 | [diff] [blame] | 415 | select XEN_XENBUS_FRONTEND |
Jeremy Fitzhardinge | 9f27ee5 | 2007-07-17 18:37:06 -0700 | [diff] [blame] | 416 | help |
| 417 | This driver implements the front-end of the Xen virtual |
| 418 | block device driver. It communicates with a back-end driver |
| 419 | in another domain which drives the actual block device. |
| 420 | |
Konrad Rzeszutek Wilk | dfc07b1 | 2011-04-18 14:24:23 -0400 | [diff] [blame] | 421 | config XEN_BLKDEV_BACKEND |
Konrad Rzeszutek Wilk | ea5e116 | 2011-08-03 11:12:17 -0400 | [diff] [blame] | 422 | tristate "Xen block-device backend driver" |
Konrad Rzeszutek Wilk | dfc07b1 | 2011-04-18 14:24:23 -0400 | [diff] [blame] | 423 | depends on XEN_BACKEND |
| 424 | help |
| 425 | The block-device backend driver allows the kernel to export its |
| 426 | block devices to other guests via a high-performance shared-memory |
| 427 | interface. |
| 428 | |
Konrad Rzeszutek Wilk | a4c3485 | 2011-05-12 16:10:55 -0400 | [diff] [blame] | 429 | The corresponding Linux frontend driver is enabled by the |
| 430 | CONFIG_XEN_BLKDEV_FRONTEND configuration option. |
| 431 | |
| 432 | The backend driver attaches itself to a any block device specified |
| 433 | in the XenBus configuration. There are no limits to what the block |
| 434 | device as long as it has a major and minor. |
| 435 | |
| 436 | If you are compiling a kernel to run in a Xen block backend driver |
| 437 | domain (often this is domain 0) you should say Y here. To |
| 438 | compile this driver as a module, chose M here: the module |
| 439 | will be called xen-blkback. |
| 440 | |
| 441 | |
Rusty Russell | e467cde | 2007-10-22 11:03:38 +1000 | [diff] [blame] | 442 | config VIRTIO_BLK |
Kees Cook | b897728 | 2012-10-23 14:01:51 -0600 | [diff] [blame] | 443 | tristate "Virtio block driver" |
| 444 | depends on VIRTIO |
Rusty Russell | e467cde | 2007-10-22 11:03:38 +1000 | [diff] [blame] | 445 | ---help--- |
Anthony Liguori | 0ad07ec | 2007-11-07 20:46:31 -0600 | [diff] [blame] | 446 | This is the virtual block driver for virtio. It can be used with |
Juergen Gross | ecda85e | 2017-08-16 19:31:57 +0200 | [diff] [blame] | 447 | QEMU based VMMs (like KVM or Xen). Say Y or M. |
Rusty Russell | e467cde | 2007-10-22 11:03:38 +1000 | [diff] [blame] | 448 | |
Christoph Hellwig | 97b50a6 | 2017-01-28 09:32:53 +0100 | [diff] [blame] | 449 | config VIRTIO_BLK_SCSI |
| 450 | bool "SCSI passthrough request for the Virtio block driver" |
| 451 | depends on VIRTIO_BLK |
| 452 | select BLK_SCSI_REQUEST |
| 453 | ---help--- |
| 454 | Enable support for SCSI passthrough (e.g. the SG_IO ioctl) on |
| 455 | virtio-blk devices. This is only supported for the legacy |
| 456 | virtio protocol and not enabled by default by any hypervisor. |
Jean Delvare | 543b334 | 2017-04-24 22:07:10 -0600 | [diff] [blame] | 457 | You probably want to use virtio-scsi instead. |
Christoph Hellwig | 97b50a6 | 2017-01-28 09:32:53 +0100 | [diff] [blame] | 458 | |
Yehuda Sadeh | 602adf4 | 2010-08-12 16:11:25 -0700 | [diff] [blame] | 459 | config BLK_DEV_RBD |
| 460 | tristate "Rados block device (RBD)" |
Kees Cook | b897728 | 2012-10-23 14:01:51 -0600 | [diff] [blame] | 461 | depends on INET && BLOCK |
Yehuda Sadeh | 602adf4 | 2010-08-12 16:11:25 -0700 | [diff] [blame] | 462 | select CEPH_LIB |
| 463 | select LIBCRC32C |
| 464 | select CRYPTO_AES |
| 465 | select CRYPTO |
| 466 | default n |
| 467 | help |
| 468 | Say Y here if you want include the Rados block device, which stripes |
| 469 | a block device over objects stored in the Ceph distributed object |
| 470 | store. |
| 471 | |
| 472 | More information at http://ceph.newdream.net/. |
| 473 | |
| 474 | If unsure, say N. |
| 475 | |
josh.h.morris@us.ibm.com | 8722ff8 | 2013-02-05 14:15:02 +0100 | [diff] [blame] | 476 | config BLK_DEV_RSXX |
Philip J Kelleher | f730e3d | 2013-06-18 14:43:58 -0500 | [diff] [blame] | 477 | tristate "IBM Flash Adapter 900GB Full Height PCIe Device Driver" |
josh.h.morris@us.ibm.com | 8722ff8 | 2013-02-05 14:15:02 +0100 | [diff] [blame] | 478 | depends on PCI |
| 479 | help |
| 480 | Device driver for IBM's high speed PCIe SSD |
Philip J Kelleher | f730e3d | 2013-06-18 14:43:58 -0500 | [diff] [blame] | 481 | storage device: Flash Adapter 900GB Full Height. |
josh.h.morris@us.ibm.com | 8722ff8 | 2013-02-05 14:15:02 +0100 | [diff] [blame] | 482 | |
| 483 | To compile this driver as a module, choose M here: the |
| 484 | module will be called rsxx. |
| 485 | |
Jan Engelhardt | fd11d17 | 2007-07-10 12:26:06 +0200 | [diff] [blame] | 486 | endif # BLK_DEV |