How to configure the Linux kernel/Device drivers/ATA-ATAPI-MFM-RLL support

Howto configure the Linux kernel / drivers / ide


 * IDE ATA ATAPI Block device driver configuration
 * Andre Hedrick 
 * Andre Hedrick 
 * Andre Hedrick 

ATA/ATAPI/MFM/RLL support
IDE
 * Option: IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ATA/ATAPI/MFM/RLL support
 * If you say Y here, your kernel will be able to manage low cost mass storage units such as ATA/(E)IDE and ATAPI units. The most common cases are IDE hard drives and ATAPI CD-ROM drives.
 * If your system is pure SCSI and doesn't use these interfaces, you can say N here.
 * Integrated Disk Electronics (IDE aka ATA-1) is a connecting standard for mass storage units such as hard disks. It was designed by Western Digital and Compaq Computer in 1984. It was then named ST506. Quite a number of disks use the IDE interface.
 * AT Attachment (ATA) is the superset of the IDE specifications. ST506 was also called ATA-1.
 * Fast-IDE is ATA-2 (also named Fast ATA), Enhanced IDE (EIDE) is ATA-3. It provides support for larger disks (up to 8.4GB by means of the LBA standard), more disks (4 instead of 2) and for other mass storage units such as tapes and cdrom. UDMA/33 (aka UltraDMA/33) is ATA-4 and provides faster (and more CPU friendly) transfer modes than previous PIO (Programmed processor Input/Output) from previous ATA/IDE standards by means of fast DMA controllers.
 * ATA Packet Interface (ATAPI) is a protocol used by EIDE tape and CD-ROM drives, similar in many respects to the SCSI protocol.
 * SMART IDE (Self Monitoring, Analysis and Reporting Technology) was designed in order to prevent data corruption and disk crash by detecting pre hardware failure conditions (heat, access time, and the like...). Disks built since June 1995 may follow this standard. The kernel itself doesn't manage this; however there are quite a number of user programs such as smart that can query the status of SMART parameters from disk drives.
 * To compile this driver as a module, choose M here: the module will be called ide.
 * For further information, please read .
 * If unsure, say Y.
 * M

"Max IDE interfaces"
 * Option: IDE_MAX_HWIFS
 * Kernel Versions: 2.6.15.6 ...
 * depends on ALPHA || SUPERH
 * default 4
 * This is the maximum number of IDE hardware interfaces that will be supported by the driver. Make sure it is at least as high as the number of IDE interfaces in your system.


 * Option: BLK_DEV_IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
 * If you say Y here, you will use the full-featured IDE driver to control up to ten ATA/IDE interfaces, each being able to serve a master and a slave device, for a total of up to twenty ATA/IDE disk/cdrom/tape/floppy drives.
 * Useful information about large (>540 MB) IDE disks, multiple interfaces, what to do if ATA/IDE devices are not automatically detected, sound card ATA/IDE ports, module support, and other topics, is contained in . For detailed information about hard drives, consult the Disk-HOWTO and the Multi-Disk-HOWTO, available from .
 * To fine-tune ATA/IDE drive/interface parameters for improved performance, look for the hdparm package at .
 * To compile this driver as a module, choose M here and read . The module will be called ide-mod. Do not compile this driver as a module if your root file system (the one containing the directory /) is located on an IDE device.
 * If you have one or more IDE drives, say Y or M here. If your system has no IDE drives, or if memory requirements are really tight, you could say N here, and select the "Old hard disk driver" below instead to save about 13 KB of memory in the kernel.

BLK_DEV_IDE

"Please see Documentation/ide.txt for help/info on IDE drives"


 * Option: BLK_DEV_IDE_SATA
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Support for SATA (deprecated; conflicts with libata SATA driver)
 * default n
 * There are two drivers for Serial ATA controllers.
 * The main driver, "libata", exists inside the SCSI subsystem and supports most modern SATA controllers.
 * The IDE driver (which you are currently configuring) supports a few first-generation SATA controllers.
 * In order to eliminate conflicts between the two subsystems, this config option enables the IDE driver's SATA support. Normally this is disabled, as it is preferred that libata supports SATA controllers, and this (IDE) driver supports PATA controllers.
 * If unsure, say N.


 * Option: BLK_DEV_HD_IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Use old disk-only driver on primary interface
 * depends on (X86 || SH_MPC1211)
 * There are two drivers for MFM/RLL/IDE disks. Most people use just the new enhanced driver by itself.  This option however installs the old hard disk driver to control the primary IDE/disk interface in the system, leaving the new enhanced IDE driver to take care of only the 2nd/3rd/4th IDE interfaces.  Doing this will prevent you from having an IDE/ATAPI CD-ROM or tape drive connected to the primary IDE interface.  Choosing this option may be useful for older systems which have MFM/RLL/ESDI controller+drives at the primary port address (0x1f0), along with IDE drives at the secondary/3rd/4th port addresses.
 * Normally, just say N here; you will then use the new driver for all 4 interfaces.


 * Option: BLK_DEV_IDEDISK
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Include IDE/ATA-2 DISK support
 * This will include enhanced support for MFM/RLL/IDE hard disks. If you have a MFM/RLL/IDE disk, and there is no special reason to use the old hard disk driver instead, say Y.  If you have an SCSI-only system, you can say N here.
 * To compile this driver as a module, choose M here: the module will be called ide-disk. Do not compile this driver as a module if your root file system (the one containing the directory /) is located on the IDE disk.
 * If unsure, say Y.


 * Option: IDEDISK_MULTI_MODE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Use multi-mode by default
 * If you get this error, try to say Y here:
 * had: set_multmode: status=0x51 { DriveReady SeekComplete Error } had: set_multmode: error=0x04 { DriveStatusError }
 * If in doubt, say N.


 * Option: BLK_DEV_IDECS
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) PCMCIA IDE support
 * depends on PCMCIA
 * Support for outboard IDE disks, tape drives, and CD-ROM drives connected through a PCMCIA card.


 * Option: BLK_DEV_IDECD
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Include IDE/ATAPI CDROM support
 * If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is a newer protocol used by IDE CD-ROM and TAPE drives, similar to the SCSI protocol. Most new CD-ROM drives use ATAPI, including the NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI double(2X) or better speed drives.
 * If you say Y here, the CD-ROM drive will be identified at boot time along with other IDE devices, as "hdb" or "hdc", or something similar (check the boot messages with dmesg). If this is your only CD-ROM drive, you can say N to all other CD-ROM options, but be sure to say Y or M to "ISO 9660 CD-ROM file system support".
 * Note that older versions of LILO (LInux LOader) cannot properly deal with IDE/ATAPI CD-ROMs, so install LILO 16 or higher, available from .
 * To compile this driver as a module, choose M here: the module will be called ide-cd.


 * Option: BLK_DEV_IDETAPE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Include IDE/ATAPI TAPE support (EXPERIMENTAL)
 * depends on EXPERIMENTAL
 * If you have an IDE tape drive using the ATAPI protocol, say Y. ATAPI is a newer protocol used by IDE tape and CD-ROM drives, similar to the SCSI protocol. If you have an SCSI tape drive however, you can say N here.
 * You should also say Y if you have an OnStream DI-30 tape drive; this will not work with the SCSI protocol, until there is support for the SC-30 and SC-50 versions.
 * If you say Y here, the tape drive will be identified at boot time along with other IDE devices, as "hdb" or "hdc", or something similar, and will be mapped to a character device such as "ht0" (check the boot messages with dmesg). Be sure to consult the  and  files for usage information.
 * To compile this driver as a module, choose M here: the module will be called ide-tape.


 * Option: BLK_DEV_IDEFLOPPY
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Include IDE/ATAPI FLOPPY support
 * If you have an IDE floppy drive which uses the ATAPI protocol, answer Y. ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy drives, similar to the SCSI protocol.
 * The LS-120 and the IDE/ATAPI Iomega ZIP drive are also supported by this driver. For information about jumper settings and the question of when a ZIP drive uses a partition table, see . (ATAPI PD-CD/CDR drives are not supported by this driver; support for PD-CD/CDR drives is available if you answer Y to SCSI emulation support, below).
 * If you say Y here, the FLOPPY drive will be identified along with other IDE devices, as "hdb" or "hdc", or something similar (check the boot messages with dmesg).
 * To compile this driver as a module, choose M here: the module will be called ide-floppy.


 * Option: BLK_DEV_IDESCSI
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) SCSI emulation support
 * depends on SCSI
 * WARNING: ide-scsi is no longer needed for cd writing applications! The 2.6 kernel supports direct writing to ide-cd, which eliminates the need for ide-scsi + the entire scsi stack just for writing a cd. The new method is more efficient in every way.
 * This will provide SCSI host adapter emulation for IDE ATAPI devices, and will allow you to use a SCSI device driver instead of a native ATAPI driver.
 * This is useful if you have an ATAPI device for which no native driver has been written (for example, an ATAPI PD-CD drive); you can then use this emulation together with an appropriate SCSI device driver. In order to do this, say Y here and to "SCSI support" and "SCSI generic support", below. You must then provide the kernel command line "hdx=ide-scsi" (try "man bootparam" or see the documentation of your boot loader (lilo or loadlin) about how to pass options to the kernel at boot time) for devices if you want the native EIDE sub-drivers to skip over the native support, so that this SCSI emulation can be used instead.
 * Note that this option does NOT allow you to attach SCSI devices to a box that doesn't have a SCSI host adapter installed.
 * If both this SCSI emulation and native ATAPI support are compiled into the kernel, the native support will be used.


 * Option: IDE_TASK_IOCTL
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) IDE Taskfile Access
 * This is a direct raw access to the media. It is a complex but elegant solution to test and validate the domain of the hardware and perform below the driver data recover if needed.  This is the most basic form of media-forensics.
 * If you are unsure, say N here.

"IDE chipset support/bugfixes"


 * Option: IDE_GENERIC
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) generic/default IDE chipset support
 * default y
 * If unsure, say Y.


 * Option: BLK_DEV_CMD640
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) CMD640 chipset bugfix/support
 * depends on X86
 * The CMD-Technologies CMD640 IDE chip is used on many common 486 and Pentium motherboards, usually in combination with a "Neptune" or SiS chipset. Unfortunately, it has a number of rather nasty design flaws that can cause severe data corruption under many common conditions. Say Y here to include code which tries to automatically detect and correct the problems under Linux. This option also enables access to the secondary IDE ports in some CMD640 based systems.
 * This driver will work automatically in PCI based systems (most new systems have PCI slots). But if your system uses VESA local bus (VLB) instead of PCI, you must also supply a kernel boot parameter to enable the CMD640 bugfix/support: "ide0=cmd640_vlb". (Try "man bootparam" or see the documentation of your boot loader about how to pass options to the kernel.)
 * The CMD640 chip is also used on add-in cards by Acculogic, and on the "CSA-6400E PCI to IDE controller" that some people have. For details, read .


 * Option: BLK_DEV_CMD640_ENHANCED
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) CMD640 enhanced support
 * depends on BLK_DEV_CMD640
 * This option includes support for setting/autotuning PIO modes and prefetch on CMD640 IDE interfaces. For details, read . If you have a CMD640 IDE interface and your BIOS does not already do this for you, then say Y here. Otherwise say N.


 * Option: BLK_DEV_IDEPNP
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) PNP EIDE support
 * depends on PNP
 * If you have a PnP (Plug and Play) compatible EIDE card and would like the kernel to automatically detect and activate it, say Y here.


 * Option: BLK_DEV_IDEPCI
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) PCI IDE chipset support if PCI
 * default BLK_DEV_IDEDMA_PMAC if PPC_PMAC && BLK_DEV_IDEDMA_PMAC
 * Say Y here for PCI systems which use IDE drive(s). This option helps the IDE driver to automatically detect and configure all PCI-based IDE interfaces in your system.


 * Option: IDEPCI_SHARE_IRQ
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Sharing PCI IDE interrupts support
 * depends on PCI && BLK_DEV_IDEPCI
 * Some ATA/IDE chipsets have hardware support which allows for sharing a single IRQ with other cards. To enable support for this in the ATA/IDE driver, say Y here.
 * It is safe to say Y to this question, in most cases. If unsure, say N.


 * Option: BLK_DEV_OFFBOARD
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Boot off-board chipsets first support
 * depends on PCI && BLK_DEV_IDEPCI
 * Normally, IDE controllers built into the motherboard (on-board controllers) are assigned to ide0 and ide1 while those on add-in PCI cards (off-board controllers) are relegated to ide2 and ide3. Answering Y here will allow you to reverse the situation, with off-board controllers on ide0/1 and on-board controllers on ide2/3. This can improve the usability of some boot managers such as lilo when booting from a drive on an off-board controller.
 * If you say Y here, and you actually want to reverse the device scan order as explained above, you also need to issue the kernel command line option "ide=reverse". (Try "man bootparam" or see the documentation of your boot loader (lilo or loadlin) about how to pass options to the kernel at boot time.)
 * Note that, if you do this, the order of the hd* devices will be rearranged which may require modification of fstab and other files.
 * If in doubt, say N.


 * Option: BLK_DEV_GENERIC
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Generic PCI IDE Chipset Support
 * depends on BLK_DEV_IDEPCI


 * Option: BLK_DEV_OPTI621
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) OPTi 82C621 chipset enhanced support (EXPERIMENTAL)
 * depends on PCI && BLK_DEV_IDEPCI && EXPERIMENTAL
 * This is a driver for the OPTi 82C621 EIDE controller. Please read the comments at the top of .


 * Option: BLK_DEV_RZ1000
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) RZ1000 chipset bugfix/support
 * depends on PCI && BLK_DEV_IDEPCI && X86
 * The PC-Technologies RZ1000 IDE chip is used on many common 486 and Pentium motherboards, usually along with the "Neptune" chipset. Unfortunately, it has a rather nasty design flaw that can cause severe data corruption under many conditions. Say Y here to include code which automatically detects and corrects the problem under Linux. This may slow disk throughput by a few percent, but at least things will operate 100% reliably.


 * Option: BLK_DEV_SL82C105
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Winbond SL82c105 support
 * depends on PCI && (PPC || ARM) && BLK_DEV_IDEPCI
 * If you have a Winbond SL82c105 IDE controller, say Y here to enable special configuration for this chip. This is common on various CHRP motherboards, but could be used elsewhere. If in doubt, say Y.


 * Option: BLK_DEV_IDEDMA_PCI
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Generic PCI bus-master DMA support
 * depends on PCI && BLK_DEV_IDEPCI
 * If your PCI system uses IDE drive(s) (as opposed to SCSI, say) and is capable of bus-master DMA operation (most Pentium PCI systems), you will want to say Y here to reduce CPU overhead. You can then use the "hdparm" utility to enable DMA for drives for which it was not enabled automatically. By default, DMA is not enabled automatically for these drives, but you can change that by saying Y to the following question "Use DMA by default when available". You can get the latest version of the hdparm utility from .
 * Read the comments at the beginning of <file:drivers/ide/ide-dma.c> and the file <file:Documentation/ide.txt> for more information.
 * It is safe to say Y to this question.

BLK_DEV_IDEDMA_PCI


 * Option: BLK_DEV_IDEDMA_FORCED
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Force enable legacy 2.0.X HOSTS to use DMA
 * This is an old piece of lost code from Linux 2.0 Kernels.
 * Generally say N here.


 * Option: IDEDMA_PCI_AUTO
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Use PCI DMA by default when available
 * Prior to kernel version 2.1.112, Linux used to automatically use DMA for IDE drives and chipsets which support it. Due to concerns about a couple of cases where buggy hardware may have caused damage, the default is now to NOT use DMA automatically. To revert to the previous behaviour, say Y to this question.
 * If you suspect your hardware is at all flakey, say N here. Do NOT email the IDE kernel people regarding this issue!
 * It is normally safe to answer Y to this question unless your motherboard uses a VIA VP2 chipset, in which case you should say N.


 * Option: IDEDMA_ONLYDISK
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Enable DMA only for disks 
 * depends on IDEDMA_PCI_AUTO
 * This is used if you know your ATAPI Devices are going to fail DMA Transfers.
 * Generally say N here.


 * Option: BLK_DEV_AEC62XX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) AEC62XX chipset support
 * This driver adds explicit support for Acard AEC62xx (Artop ATP8xx) IDE controllers. This allows the kernel to change PIO, DMA and UDMA speeds and to configure the chip to optimum performance.


 * Option: BLK_DEV_ALI15X3
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ALI M15x3 chipset support
 * This driver ensures (U)DMA support for ALI 1533, 1543 and 1543C onboard chipsets. It also tests for Simplex mode and enables normal dual channel support.
 * If you say Y here, you also need to say Y to "Use DMA by default when available", above. Please read the comments at the top of <file:drivers/ide/pci/alim15x3.c>.
 * If unsure, say N.


 * Option: WDC_ALI15X3
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) ALI M15x3 WDC support (DANGEROUS)
 * depends on BLK_DEV_ALI15X3
 * This allows for UltraDMA support for WDC drives that ignore CRC checking. You are a fool for enabling this option, but there have been requests. DO NOT COMPLAIN IF YOUR DRIVE HAS FS CORRUPTION, IF YOU ENABLE THIS! No one will listen, just laugh for ignoring this SERIOUS WARNING.
 * Using this option can allow WDC drives to run at ATA-4/5 transfer rates with only an ATA-2 support structure.
 * SAY N!


 * Option: BLK_DEV_AMD74XX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) AMD and nVidia IDE support
 * This driver adds explicit support for AMD-7xx and AMD-8111 chips and also for the nVidia nForce chip. This allows the kernel to change PIO, DMA and UDMA speeds and to configure the chip to optimum performance.


 * Option: BLK_DEV_ATIIXP
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ATI IXP chipset IDE support
 * depends on X86
 * This driver adds explicit support for ATI IXP chipset. This allows the kernel to change PIO, DMA and UDMA speeds and to configure the chip to optimum performance.
 * Say Y here if you have an ATI IXP chipset IDE controller.


 * Option: BLK_DEV_CMD64X
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) CMD64{3|6|8|9} chipset support
 * Say Y here if you have an IDE controller which uses any of these chipsets: CMD643, CMD646, or CMD648.


 * Option: BLK_DEV_TRIFLEX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Compaq Triflex IDE support
 * Say Y here if you have a Compaq Triflex IDE controller, such as those commonly found on Compaq Pentium-Pro systems


 * Option: BLK_DEV_CY82C693
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) CY82C693 chipset support
 * This driver adds detection and support for the CY82C693 chipset used on Digital's PC-Alpha 164SX boards.
 * If you say Y here, you need to say Y to "Use DMA by default when available" as well.


 * Option: BLK_DEV_CS5520
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)
 * depends on EXPERIMENTAL
 * Include support for PIO tuning an virtual DMA on the Cyrix MediaGX 5510/5520 chipset. This will automatically be detected and configured if found.
 * It is safe to say Y to this question.


 * Option: BLK_DEV_CS5530
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Cyrix/National Semiconductor CS5530 MediaGX chipset support
 * Include support for UDMA on the Cyrix MediaGX 5530 chipset. This will automatically be detected and configured if found.
 * It is safe to say Y to this question.


 * Option: BLK_DEV_CS5535
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) AMD CS5535 chipset support
 * depends on X86 && !X86_64
 * Include support for UDMA on the NSC/AMD CS5535 companion chipset. This will automatically be detected and configured if found.
 * It is safe to say Y to this question.


 * Option: BLK_DEV_HPT34X
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) HPT34X chipset support
 * This driver adds up to 4 more EIDE devices sharing a single interrupt. The HPT343 chipset in its current form is a non-bootable controller; the HPT345/HPT363 chipset is a bootable (needs BIOS FIX) PCI UDMA controllers. This driver requires dynamic tuning of the chipset during the ide-probe at boot time. It is reported to support DVD II drives, by the manufacturer.


 * Option: HPT34X_AUTODMA
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) HPT34X AUTODMA support (EXPERIMENTAL)
 * depends on BLK_DEV_HPT34X && EXPERIMENTAL
 * This is a dangerous thing to attempt currently! Please read the comments at the top of <file:drivers/ide/pci/hpt34x.c>. If you say Y here, then say Y to "Use DMA by default when available" as well.
 * If unsure, say N.


 * Option: BLK_DEV_HPT366
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) HPT36X/37X chipset support
 * HPT366 is an Ultra DMA chipset for ATA-66. HPT368 is an Ultra DMA chipset for ATA-66 RAID Based. HPT370 is an Ultra DMA chipset for ATA-100. HPT372 is an Ultra DMA chipset for ATA-100. HPT374 is an Ultra DMA chipset for ATA-100.
 * This driver adds up to 4 more EIDE devices sharing a single interrupt.
 * The HPT366 chipset in its current form is bootable. One solution for this problem are special LILO commands for redirecting the reference to device 0x80. The other solution is to say Y to "Boot off-board chipsets first support" (CONFIG_BLK_DEV_OFFBOARD) unless your mother board has the chipset natively mounted. Regardless one should use the fore mentioned option and call at LILO or include ide=reverse in LILO's append-line.
 * This driver requires dynamic tuning of the chipset during the ide-probe at boot. It is reported to support DVD II drives, by the manufacturer.


 * Option: BLK_DEV_SC1200
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) National SCx200 chipset support
 * This driver adds support for the built in IDE on the National SCx200 series of embedded x86 "Geode" systems


 * Option: BLK_DEV_PIIX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Intel PIIXn chipsets support
 * This driver adds explicit support for Intel PIIX and ICH chips and also for the Efar Victory66 (slc90e66) chip. This allows the kernel to change PIO, DMA and UDMA speeds and to configure the chip to optimum performance.


 * Option: BLK_DEV_IT8172
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) IT8172 IDE support
 * depends on (MIPS_ITE8172 || MIPS_IVR)
 * Say Y here to support the on-board IDE controller on the Integrated Technology Express, Inc. ITE8172 SBC. Vendor page at <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the board at <http://www.mvista.com/partners/semiconductor/ite.html>.


 * Option: BLK_DEV_IT821X
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) IT821X IDE support
 * This driver adds support for the ITE 8211 IDE controller and the IT 8212 IDE RAID controller in both RAID and pass-through mode.


 * Option: BLK_DEV_NS87415
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) NS87415 chipset support
 * This driver adds detection and support for the NS87415 chip (used mainly on SPARC64 and PA-RISC machines).
 * Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.


 * Option: BLK_DEV_PDC202XX_OLD
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) PROMISE PDC202{46|62|65|67} support
 * Promise Ultra33 or PDC20246 Promise Ultra66 or PDC20262 Promise Ultra100 or PDC20265/PDC20267/PDC20268
 * This driver adds up to 4 more EIDE devices sharing a single interrupt. This add-on card is a bootable PCI UDMA controller. Since multiple cards can be installed and there are BIOS ROM problems that happen if the BIOS revisions of all installed cards (three-max) do not match, the driver attempts to do dynamic tuning of the chipset at boot-time for max-speed. Ultra33 BIOS 1.25 or newer is required for more than one card. This card may require that you say Y to Special UDMA Feature.
 * If you say Y here, you need to say Y to "Use DMA by default when available" as well.
 * Please read the comments at the top of <file:drivers/ide/pci/pdc202xx_old.c>.
 * If unsure, say N.


 * Option: PDC202XX_BURST
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Special UDMA Feature
 * depends on BLK_DEV_PDC202XX_OLD
 * This option causes the pdc202xx driver to enable UDMA modes on the PDC202xx even when the PDC202xx BIOS has not done so.
 * It was originally designed for the PDC20246/Ultra33, whose BIOS will only setup UDMA on the first two PDC20246 cards. It has also been used successfully on a PDC20265/Ultra100, allowing use of UDMA modes when the PDC20265 BIOS has been disabled (for faster boot up).
 * Please read the comments at the top of <file:drivers/ide/pci/pdc202xx_old.c>.
 * If unsure, say N.


 * Option: BLK_DEV_PDC202XX_NEW
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) PROMISE PDC202{68|69|70|71|75|76|77} support


 * FIXME - probably wants to be one for old and for new


 * Option: PDC202XX_FORCE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Enable controller even if disabled by BIOS
 * depends on BLK_DEV_PDC202XX_NEW
 * Enable the PDC202xx controller even if it has been disabled in the BIOS setup.


 * Option: BLK_DEV_SVWKS
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ServerWorks OSB4/CSB5/CSB6 chipsets support
 * This driver adds PIO/(U)DMA support for the ServerWorks OSB4/CSB5 chipsets.


 * Option: BLK_DEV_SGIIOC4
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Silicon Graphics IOC4 chipset ATA/ATAPI support
 * depends on (IA64_SGI_SN2 || IA64_GENERIC) && SGI_IOC4
 * This driver adds PIO & MultiMode DMA-2 support for the SGI IOC4 chipset, which has one channel and can support two devices. Please say Y here if you have an Altix System from SGI.


 * Option: BLK_DEV_SIIMAGE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Silicon Image chipset support
 * This driver adds PIO/(U)DMA support for the SI CMD680 and SII 3112 (Serial ATA) chips.


 * Option: BLK_DEV_SIS5513
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) SiS5513 chipset support
 * depends on X86
 * This driver ensures (U)DMA support for SIS5513 chipset family based mainboards.
 * The following chipsets are supported: ATA16: SiS5511, SiS5513 ATA33:  SiS5591, SiS5597, SiS5598, SiS5600 ATA66:  SiS530, SiS540, SiS620, SiS630, SiS640 ATA100: SiS635, SiS645, SiS650, SiS730, SiS735, SiS740, SiS745, SiS750
 * If you say Y here, you need to say Y to "Use DMA by default when available" as well.
 * Please read the comments at the top of <file:drivers/ide/pci/sis5513.c>.


 * Option: BLK_DEV_SLC90E66
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) SLC90E66 chipset support
 * This driver ensures (U)DMA support for Victroy66 SouthBridges for SMsC with Intel NorthBridges. This is an Ultra66 based chipset. The nice thing about it is that you can mix Ultra/DMA/PIO devices and it will handle timing cycles.  Since this is an improved look-a-like to the PIIX4 it should be a nice addition.
 * If you say Y here, you need to say Y to "Use DMA by default when available" as well.
 * Please read the comments at the top of <file:drivers/ide/pci/slc90e66.c>.


 * Option: BLK_DEV_TRM290
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Tekram TRM290 chipset support
 * This driver adds support for bus master DMA transfers using the Tekram TRM290 PCI IDE chip. Volunteers are needed for further tweaking and development. Please read the comments at the top of <file:drivers/ide/pci/trm290.c>.


 * Option: BLK_DEV_VIA82CXXX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) VIA82CXXX chipset support
 * This driver adds explicit support for VIA BusMastering IDE chips. This allows the kernel to change PIO, DMA and UDMA speeds and to configure the chip to optimum performance.


 * Option: BLK_DEV_IDE_PMAC
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Builtin PowerMac IDE support
 * depends on PPC_PMAC && IDE=y
 * This driver provides support for the built-in IDE controller on most of the recent Apple Power Macintoshes and PowerBooks. If unsure, say Y.


 * Option: BLK_DEV_IDE_PMAC_ATA100FIRST
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Probe internal ATA/100 (Kauai) first
 * depends on BLK_DEV_IDE_PMAC
 * This option will cause the ATA/100 controller found in UniNorth2 based machines (Windtunnel PowerMac, Aluminium PowerBooks, ...) to be probed before the ATA/66 and ATA/33 controllers. Without these, those machine used to have the hard disk on hdc and the CD-ROM on had. This option changes this to more natural had for hard disk and hdc for CD-ROM.


 * Option: BLK_DEV_IDEDMA_PMAC
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) PowerMac IDE DMA support
 * depends on BLK_DEV_IDE_PMAC
 * select BLK_DEV_IDEDMA_PCI
 * This option allows the driver for the built-in IDE controller on Power Macintoshes and PowerBooks to use DMA (direct memory access) to transfer data to and from memory. Saying Y is safe and improves performance.


 * Option: BLK_DEV_IDE_PMAC_BLINK
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Blink laptop LED on drive activity
 * depends on BLK_DEV_IDE_PMAC && ADB_PMU
 * This option enables the use of the sleep LED as a hard drive activity LED.


 * Option: BLK_DEV_IDE_SWARM
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) IDE for Sibyte evaluation boards
 * depends on SIBYTE_SB1xxx_SOC

prompt "IDE Mode for AMD Alchemy Au1200"     default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA      depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
 * Option: BLK_DEV_IDE_AU1XXX
 * Kernel Versions: 2.6.15.6 ...     bool IDE for AMD Alchemy Au1200      depends on SOC_AU1200


 * Option: BLK_DEV_IDE_AU1XXX_PIO_DBDMA
 * Kernel Versions: 2.6.15.6 ...     bool PIO+DbDMA IDE for AMD Alchemy Au1200


 * Option: BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 * Kernel Versions: 2.6.15.6 ...     bool MDMA2+DbDMA IDE for AMD Alchemy Au1200      depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX


 * Option: BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
 * Kernel Versions: 2.6.15.6 ...     int "Maximum transfer size (KB) per request (up to 128)"      default "128"      depends BLK_DEV_IDE_AU1XXX

_bool ARM && (ARCH_A5K || ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)
 * Option: IDE_ARM
 * Kernel Versions: 2.6.15.6 ...


 * Option: BLK_DEV_IDE_ICSIDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ICS IDE interface support
 * depends on ARM && ARCH_ACORN
 * On Acorn systems, say Y here if you wish to use the ICS IDE interface card. This is not required for ICS partition support. If you are unsure, say N to this.


 * Option: BLK_DEV_IDEDMA_ICS
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) ICS DMA support
 * depends on BLK_DEV_IDE_ICSIDE
 * Say Y here if you want to add DMA (Direct Memory Access) support to the ICS IDE driver.


 * Option: IDEDMA_ICS_AUTO
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Use ICS DMA by default
 * depends on BLK_DEV_IDEDMA_ICS
 * Prior to kernel version 2.1.112, Linux used to automatically use DMA for IDE drives and chipsets which support it. Due to concerns about a couple of cases where buggy hardware may have caused damage, the default is now to NOT use DMA automatically. To revert to the previous behaviour, say Y to this question.
 * If you suspect your hardware is at all flakey, say N here. Do NOT email the IDE kernel people regarding this issue!


 * Option: BLK_DEV_IDE_RAPIDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) RapIDE interface support
 * depends on ARM && ARCH_ACORN
 * Say Y here if you want to support the Yellowstone RapIDE controller manufactured for use with Acorn computers.


 * Option: BLK_DEV_IDE_BAST
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Simtec BAST / Thorcom VR1000 IDE support
 * depends on ARM && (ARCH_BAST || MACH_VR1000)
 * Say Y here if you want to support the onboard IDE channels on the Simtec BAST or the Thorcom VR1000


 * Option: BLK_DEV_GAYLE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Amiga Gayle IDE interface support
 * depends on AMIGA
 * This is the IDE driver for the Amiga Gayle IDE interface. It supports both the `A1200 style' and `A4000 style' of the Gayle IDE interface, This includes builtin IDE interfaces on some Amiga models (A600, A1200, A4000, and A4000T), and IDE interfaces on the Zorro expansion bus (M-Tech E-Matrix 530 expansion card). Say Y if you have an Amiga with a Gayle IDE interface and want to use IDE devices (hard disks, CD-ROM drives, etc.) that are connected to it. Note that you also have to enable Zorro bus support if you want to use Gayle IDE interfaces on the Zorro expansion bus.


 * Option: BLK_DEV_IDEDOUBLER
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Amiga IDE Doubler support (EXPERIMENTAL)
 * depends on BLK_DEV_GAYLE && EXPERIMENTAL
 * This driver provides support for the so-called `IDE doublers' (made by various manufacturers, e.g. Eyetech) that can be connected to the builtin IDE interface of some Amiga models. Using such an IDE doubler, you can connect up to four instead of two IDE devices on the Amiga's builtin IDE interface.
 * Note that the normal Amiga Gayle IDE driver may not work correctly if you have an IDE doubler and don't enable this driver!
 * Say Y if you have an IDE doubler. The driver is enabled at kernel runtime using the "ide=doubler" kernel boot parameter.


 * Option: BLK_DEV_BUDDHA
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)
 * depends on ZORRO && EXPERIMENTAL
 * This is the IDE driver for the IDE interfaces on the Buddha, Catweasel and X-Surf expansion boards.  It supports up to two interfaces  on the Buddha, three on the Catweasel and two on the X-Surf.
 * Say Y if you have a Buddha or Catweasel expansion board and want to use IDE devices (hard disks, CD-ROM drives, etc.) that are connected to one of its IDE interfaces.


 * Option: BLK_DEV_FALCON_IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Falcon IDE interface support
 * depends on ATARI
 * This is the IDE driver for the builtin IDE interface on the Atari Falcon. Say Y if you have a Falcon and want to use IDE devices (hard disks, CD-ROM drives, etc.) that are connected to the builtin IDE interface.


 * Option: BLK_DEV_MAC_IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Macintosh Quadra/Powerbook IDE interface support
 * depends on MAC
 * This is the IDE driver for the builtin IDE interface on some m68k Macintosh models. It supports both the `Quadra style' (used in Quadra/ Centris 630 and Performa 588 models) and `Powerbook style' (used in the Powerbook 150 and 190 models) IDE interface.
 * Say Y if you have such an Macintosh model and want to use IDE devices (hard disks, CD-ROM drives, etc.) that are connected to the builtin IDE interface.


 * Option: BLK_DEV_Q40IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Q40/Q60 IDE interface support
 * depends on Q40
 * Enable the on-board IDE controller in the Q40/Q60. This should normally be on; disable it only if you are running a custom hard drive subsystem through an expansion card.


 * Option: BLK_DEV_MPC8xx_IDE
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) MPC8xx IDE support
 * depends on 8xx && IDE=y && BLK_DEV_IDE=y
 * This option provides support for IDE on Motorola MPC8xx Systems. Please see 'Type of MPC8xx IDE interface' for details.
 * If unsure, say N.

"Type of MPC8xx IDE interface"
 * depends on BLK_DEV_MPC8xx_IDE
 * default IDE_8xx_PCCARD


 * Option: IDE_8xx_PCCARD
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) 8xx_PCCARD
 * Select how the IDE devices are connected to the MPC8xx system:
 * 8xx_PCCARD uses the 8xx internal PCMCIA interface in combination with a PC Card (e.g. ARGOSY portable Hard Disk Adapter), ATA PC Card HDDs or ATA PC Flash Cards (example: TQM8xxL systems)
 * 8xx_DIRECT is used for directly connected IDE devices using the 8xx internal PCMCIA interface (example: IVMS8 systems)
 * EXT_DIRECT is used for IDE devices directly connected to the 8xx bus using some glue logic, but _not_ the 8xx internal PCMCIA interface (example: IDIF860 systems)


 * Option: IDE_8xx_DIRECT
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) 8xx_DIRECT


 * Option: IDE_EXT_DIRECT
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) EXT_DIRECT


 * no isa -> no vlb


 * Option: IDE_CHIPSETS
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Other IDE chipset support
 * depends on ISA
 * Say Y here if you want to include enhanced support for various IDE interface chipsets used on motherboards and add-on cards. You can then pick your particular IDE chip from among the following options. This enhanced support may be necessary for Linux to be able to access the 3rd/4th drives in some systems. It may also enable setting of higher speed I/O rates to improve system performance with these chipsets. Most of these also require special kernel boot parameters to actually turn on the support at runtime; you can find a list of these in the file <file:Documentation/ide.txt>.
 * People with SCSI-only systems can say N here.

IDE_CHIPSETS

"Note: most of these also require special kernel boot parameters"


 * Option: BLK_DEV_4DRIVES
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Generic 4 drives/port support
 * Certain older chipsets, including the Tekram 690CD, use a single set of I/O ports at 0x1f0 to control up to four drives, instead of the customary two drives per port. Support for this can be enabled at runtime using the "ide0=four" kernel boot parameter if you say Y here.


 * Option: BLK_DEV_ALI14XX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) ALI M14xx support
 * This driver is enabled at runtime using the "ide0=ali14xx" kernel boot parameter. It enables support for the secondary IDE interface of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster I/O speeds to be set as well.  See the files <file:Documentation/ide.txt> and <file:drivers/ide/legacy/ali14xx.c> for more info.


 * Option: BLK_DEV_DTC2278
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) DTC-2278 support
 * This driver is enabled at runtime using the "ide0=dtc2278" kernel boot parameter. It enables support for the secondary IDE interface of the DTC-2278 card, and permits faster I/O speeds to be set as well. See the <file:Documentation/ide.txt> and <file:drivers/ide/legacy/dtc2278.c> files for more info.


 * Option: BLK_DEV_HT6560B
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) Holtek HT6560B support
 * This driver is enabled at runtime using the "ide0=ht6560b" kernel boot parameter. It enables support for the secondary IDE interface of the Holtek card, and permits faster I/O speeds to be set as well. See the <file:Documentation/ide.txt> and <file:drivers/ide/legacy/ht6560b.c> files for more info.


 * Option: BLK_DEV_QD65XX
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) QDI QD65xx support
 * This driver is enabled at runtime using the "ide0=qd65xx" kernel boot parameter. It permits faster I/O speeds to be set.  See the <file:Documentation/ide.txt> and <file:drivers/ide/legacy/qd65xx.c> for more info.


 * Option: BLK_DEV_UMC8672
 * Kernel Versions: 2.6.15.6 ...
 * (on/off/module) UMC-8672 support
 * This driver is enabled at runtime using the "ide0=umc8672" kernel boot parameter. It enables support for the secondary IDE interface of the UMC-8672, and permits faster I/O speeds to be set as well. See the files <file:Documentation/ide.txt> and <file:drivers/ide/legacy/umc8672.c> for more info.

_bool BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 * Option: BLK_DEV_IDEDMA
 * Kernel Versions: 2.6.15.6 ...


 * Option: IDEDMA_IVB
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) IGNORE word93 Validation BITS
 * depends on BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS
 * There are unclear terms in ATA-4 and ATA-5 standards how certain hardware (an 80c ribbon) should be detected. Different interpretations of the standards have been released in hardware. This causes problems: for example, a host with Ultra Mode 4 (or higher) will not run in that mode with an 80c ribbon.
 * If you are experiencing compatibility or performance problems, you MAY try to answering Y here. However, it does not necessarily solve any of your problems, it could even cause more of them.
 * It is normally safe to answer Y; however, the default is N.

_bool IDEDMA_PCI_AUTO || IDEDMA_ICS_AUTO
 * Option: IDEDMA_AUTO
 * Kernel Versions: 2.6.15.6 ...


 * Option: BLK_DEV_HD_ONLY
 * Kernel Versions: 2.6.15.6 ...
 * (on/off) Old hard disk (MFM/RLL/IDE) driver
 * depends on BLK_DEV_IDE=n
 * There are two drivers for MFM/RLL/IDE hard disks. Most people use the newer enhanced driver, but this old one is still around for two reasons. Some older systems have strange timing problems and seem to work only with the old driver (which itself does not work with some newer systems). The other reason is that the old driver is smaller, since it lacks the enhanced functionality of the new one. This makes it a good choice for systems with very tight memory restrictions, or for systems with only older MFM/RLL/ESDI drives. Choosing the old driver can save 13 KB or so of kernel memory.
 * If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver instead of this one. For more detailed information, read the Disk-HOWTO, available from <http://www.tldp.org/docs.html#howto>.

_bool BLK_DEV_HD_IDE || BLK_DEV_HD_ONLY
 * Option: BLK_DEV_HD
 * Kernel Versions: 2.6.15.6 ...

Linux Kernel Configuration