kconfig

linux 内核源代码

	  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.

config IDEPCI_PCIBUS_ORDER
	def_bool BLK_DEV_IDE=y && BLK_DEV_IDEPCI

# TODO: split it on per host driver config options (or module parameters)
config BLK_DEV_OFFBOARD
	bool "Boot off-board chipsets first support (DEPRECATED)"
	depends on BLK_DEV_IDEPCI && (BLK_DEV_AEC62XX || BLK_DEV_GENERIC || BLK_DEV_HPT34X || BLK_DEV_HPT366 || BLK_DEV_PDC202XX_NEW || BLK_DEV_PDC202XX_OLD || BLK_DEV_TC86C001)
	help
	  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.

	  Please also note that this method of assuring stable naming of
	  IDE devices is unreliable and use other means for achieving it
	  (i.e. udev).

	  If in doubt, say N.

config BLK_DEV_GENERIC
	tristate "Generic PCI IDE Chipset Support"
	select BLK_DEV_IDEPCI
        help
          This option provides generic support for various PCI IDE Chipsets
          which otherwise might not be supported.

config BLK_DEV_OPTI621
	tristate "OPTi 82C621 chipset enhanced support (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select BLK_DEV_IDEPCI
	help
	  This is a driver for the OPTi 82C621 EIDE controller.
	  Please read the comments at the top of <file:drivers/ide/pci/opti621.c>.

config BLK_DEV_RZ1000
	tristate "RZ1000 chipset bugfix/support"
	depends on X86
	select BLK_DEV_IDEPCI
	help
	  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.

config BLK_DEV_IDEDMA_PCI
	bool
	select BLK_DEV_IDEPCI

config BLK_DEV_AEC62XX
	tristate "AEC62XX chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_ALI15X3
	tristate "ALI M15x3 chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config WDC_ALI15X3
	bool "ALI M15x3 WDC support (DANGEROUS)"
	depends on BLK_DEV_ALI15X3
	---help---
	  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!

config BLK_DEV_AMD74XX
	tristate "AMD and nVidia IDE support"
	depends on !ARM
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_ATIIXP
	tristate "ATI IXP chipset IDE support"
	depends on X86
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_CMD64X
	tristate "CMD64{3|6|8|9} chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  Say Y here if you have an IDE controller which uses any of these
	  chipsets: CMD643, CMD646, or CMD648.

config BLK_DEV_TRIFLEX
	tristate "Compaq Triflex IDE support"
	select BLK_DEV_IDEDMA_PCI
	help
	  Say Y here if you have a Compaq Triflex IDE controller, such
	  as those commonly found on Compaq Pentium-Pro systems

config BLK_DEV_CY82C693
	tristate "CY82C693 chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_CS5520
	tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select BLK_DEV_IDEDMA_PCI
	help
	  Include support for PIO tuning and 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.

config BLK_DEV_CS5530
	tristate "Cyrix/National Semiconductor CS5530 MediaGX chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_CS5535
	tristate "AMD CS5535 chipset support"
	depends on X86 && !X86_64
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_HPT34X
	tristate "HPT34X chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config HPT34X_AUTODMA
	bool "HPT34X AUTODMA support (EXPERIMENTAL)"
	depends on BLK_DEV_HPT34X && EXPERIMENTAL
	help
	  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.

config BLK_DEV_HPT366
	tristate "HPT36X/37X chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_JMICRON
	tristate "JMicron JMB36x support"
	select BLK_DEV_IDEDMA_PCI
	help
	  Basic support for the JMicron ATA controllers. For full support
	  use the libata drivers.

config BLK_DEV_SC1200
	tristate "National SCx200 chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  This driver adds support for the built in IDE on the National
	  SCx200 series of embedded x86 "Geode" systems

config BLK_DEV_PIIX
	tristate "Intel PIIXn chipsets support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_IT8213
	tristate "IT8213 IDE support"
	select BLK_DEV_IDEDMA_PCI
	help
	 This driver adds support for the ITE 8213 IDE controller.

config BLK_DEV_IT821X
	tristate "IT821X IDE support"
	select BLK_DEV_IDEDMA_PCI
	help
	  This driver adds support for the ITE 8211 IDE controller and the
	  IT 8212 IDE RAID controller in both RAID and pass-through mode.

config BLK_DEV_NS87415
	tristate "NS87415 chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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>.

config BLK_DEV_PDC202XX_OLD
	tristate "PROMISE PDC202{46|62|65|67} support"
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config PDC202XX_BURST
	bool "Special UDMA Feature"
	depends on BLK_DEV_PDC202XX_OLD
	help
	  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.

config BLK_DEV_PDC202XX_NEW
	tristate "PROMISE PDC202{68|69|70|71|75|76|77} support"
	select BLK_DEV_IDEDMA_PCI

config BLK_DEV_SVWKS
	tristate "ServerWorks OSB4/CSB5/CSB6 chipsets support"
	select BLK_DEV_IDEDMA_PCI
	help
	  This driver adds PIO/(U)DMA support for the ServerWorks OSB4/CSB5
	  chipsets.

config BLK_DEV_SGIIOC4
	tristate "Silicon Graphics IOC4 chipset ATA/ATAPI support"
	depends on (IA64_SGI_SN2 || IA64_GENERIC) && SGI_IOC4
	select IDEPCI_SHARE_IRQ
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_SIIMAGE
	tristate "Silicon Image chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  This driver adds PIO/(U)DMA support for the SI CMD680 and SII
	  3112 (Serial ATA) chips.

config BLK_DEV_SIS5513
	tristate "SiS5513 chipset support"
	depends on X86
	select BLK_DEV_IDEDMA_PCI
	help
	  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>.

config BLK_DEV_SL82C105
	tristate "Winbond SL82c105 support"
	depends on (PPC || ARM)
	select BLK_DEV_IDEDMA_PCI
	help
	  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.

config BLK_DEV_SLC90E66
	tristate "SLC90E66 chipset support"
	select BLK_DEV_IDEDMA_PCI
	help
	  This driver ensures (U)DMA support for Victory66 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.