kconfig

Linux Kernel 2.6.9 for OMAP1710

	  model 95 with a LED-matrix-display can in addition activate some
	  activity info like under OS/2, but more informative, by setting
	  'ibmmcascsi=display' as an additional kernel parameter.  Try "man
	  bootparam" or see the documentation of your boot loader about how to
	  pass options to the kernel.

	  To compile this driver as a module, choose M here: the
	  module will be called ibmmca.

config IBMMCA_SCSI_ORDER_STANDARD
	bool "Standard SCSI-order"
	depends on SCSI_IBMMCA
	---help---
	  In the PC-world and in most modern SCSI-BIOS-setups, SCSI-hard disks
	  are assigned to the drive letters, starting with the lowest SCSI-id
	  (physical number -- pun) to be drive C:, as seen from DOS and
	  similar operating systems. When looking into papers describing the
	  ANSI-SCSI-standard, this assignment of drives appears to be wrong.
	  The SCSI-standard follows a hardware-hierarchy which says that id 7
	  has the highest priority and id 0 the lowest. Therefore, the host
	  adapters are still today everywhere placed as SCSI-id 7 by default.
	  In the SCSI-standard, the drive letters express the priority of the
	  disk. C: should be the hard disk, or a partition on it, with the
	  highest priority. This must therefore be the disk with the highest
	  SCSI-id (e.g. 6) and not the one with the lowest! IBM-BIOS kept the
	  original definition of the SCSI-standard as also industrial- and
	  process-control-machines, like VME-CPUs running under realtime-OSes
	  (e.g. LynxOS, OS9) do.

	  If you like to run Linux on your MCA-machine with the same
	  assignment of hard disks as seen from e.g. DOS or OS/2 on your
	  machine, which is in addition conformant to the SCSI-standard, you
	  must say Y here. This is also necessary for MCA-Linux users who want
	  to keep downward compatibility to older releases of the
	  IBM-MCA-SCSI-driver (older than driver-release 2.00 and older than
	  June 1997).

	  If you like to have the lowest SCSI-id assigned as drive C:, as
	  modern SCSI-BIOSes do, which does not conform to the standard, but
	  is widespread and common in the PC-world of today, you must say N
	  here. If unsure, say Y.

config IBMMCA_SCSI_DEV_RESET
	bool "Reset SCSI-devices at boottime"
	depends on SCSI_IBMMCA
	---help---
	  By default, SCSI-devices are reset when the machine is powered on.
	  However, some devices exist, like special-control-devices,
	  SCSI-CNC-machines, SCSI-printer or scanners of older type, that do
	  not reset when switched on. If you say Y here, each device connected
	  to your SCSI-bus will be issued a reset-command after it has been
	  probed, while the kernel is booting. This may cause problems with
	  more modern devices, like hard disks, which do not appreciate these
	  reset commands, and can cause your system to hang. So say Y only if
	  you know that one of your older devices needs it; N is the safe
	  answer.

config SCSI_IPS
	tristate "IBM ServeRAID support"
	depends on PCI && SCSI
	---help---
	  This is support for the IBM ServeRAID hardware RAID controllers.
	  See <http://www.developer.ibm.com/welcome/netfinity/serveraid.html>
	  for more information.  If this driver does not work correctly
	  without modification please contact the author by email at
	  [e-mail].

	  To compile this driver as a module, choose M here: the
	  module will be called ips.

config SCSI_IBMVSCSI
	tristate "IBM Virtual SCSI support"
	depends on PPC_PSERIES || PPC_ISERIES
	help
	  This is the IBM POWER Virtual SCSI Client

	  To compile this driver as a module, choose M here: the
	  module will be called ibmvscsic.

config SCSI_INITIO
	tristate "Initio 9100U(W) support"
	depends on PCI && SCSI && BROKEN
	help
	  This is support for the Initio 91XXU(W) SCSI host adapter.  Please
	  read the SCSI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>.

	  To compile this driver as a module, choose M here: the
	  module will be called initio.

config SCSI_INIA100
	tristate "Initio INI-A100U2W support"
	depends on PCI && SCSI
	help
	  This is support for the Initio INI-A100U2W SCSI host adapter.
	  Please read the SCSI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>.

	  To compile this driver as a module, choose M here: the
	  module will be called a100u2w.

config SCSI_PPA
	tristate "IOMEGA parallel port (ppa - older drives)"
	depends on SCSI && PARPORT
	---help---
	  This driver supports older versions of IOMEGA's parallel port ZIP
	  drive (a 100 MB removable media device).

	  Note that you can say N here if you have the SCSI version of the ZIP
	  drive: it will be supported automatically if you said Y to the
	  generic "SCSI disk support", above.

	  If you have the ZIP Plus drive or a more recent parallel port ZIP
	  drive (if the supplied cable with the drive is labeled "AutoDetect")
	  then you should say N here and Y to "IOMEGA parallel port (imm -
	  newer drives)", below.

	  For more information about this driver and how to use it you should
	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
	  the SCSI-HOWTO, which is available from
	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
	  you will still be able to use the parallel port for other tasks,
	  such as a printer; it is safe to compile both drivers into the
	  kernel.

	  To compile this driver as a module, choose M here: the
	  module will be called ppa.

config SCSI_IMM
	tristate "IOMEGA parallel port (imm - newer drives)"
	depends on SCSI && PARPORT
	---help---
	  This driver supports newer versions of IOMEGA's parallel port ZIP
	  drive (a 100 MB removable media device).

	  Note that you can say N here if you have the SCSI version of the ZIP
	  drive: it will be supported automatically if you said Y to the
	  generic "SCSI disk support", above.

	  If you have the ZIP Plus drive or a more recent parallel port ZIP
	  drive (if the supplied cable with the drive is labeled "AutoDetect")
	  then you should say Y here; if you have an older ZIP drive, say N
	  here and Y to "IOMEGA Parallel Port (ppa - older drives)", above.

	  For more information about this driver and how to use it you should
	  read the file <file:Documentation/scsi/ppa.txt>.  You should also read
	  the SCSI-HOWTO, which is available from
	  <http://www.tldp.org/docs.html#howto>.  If you use this driver,
	  you will still be able to use the parallel port for other tasks,
	  such as a printer; it is safe to compile both drivers into the
	  kernel.

	  To compile this driver as a module, choose M here: the
	  module will be called imm.

config SCSI_IZIP_EPP16
	bool "ppa/imm option - Use slow (but safe) EPP-16"
	depends on PARPORT && (SCSI_PPA || SCSI_IMM)
	---help---
	  EPP (Enhanced Parallel Port) is a standard for parallel ports which
	  allows them to act as expansion buses that can handle up to 64
	  peripheral devices.

	  Some parallel port chipsets are slower than their motherboard, and
	  so we have to control the state of the chipset's FIFO queue every
	  now and then to avoid data loss. This will be done if you say Y
	  here.

	  Generally, saying Y is the safe option and slows things down a bit.

config SCSI_IZIP_SLOW_CTR
	bool "ppa/imm option - Assume slow parport control register"
	depends on PARPORT && (SCSI_PPA || SCSI_IMM)
	help
	  Some parallel ports are known to have excessive delays between
	  changing the parallel port control register and good data being
	  available on the parallel port data/status register. This option
	  forces a small delay (1.0 usec to be exact) after changing the
	  control register to let things settle out. Enabling this option may
	  result in a big drop in performance but some very old parallel ports
	  (found in 386 vintage machines) will not work properly.

	  Generally, saying N is fine.

config SCSI_NCR53C406A
	tristate "NCR53c406a SCSI support"
	depends on ISA && SCSI
	help
	  This is support for the NCR53c406a SCSI host adapter.  For user
	  configurable parameters, check out <file:drivers/scsi/NCR53c406a.c>
	  in the kernel source.  Also read the SCSI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>.

	  To compile this driver as a module, choose M here: the
	  module will be called NCR53c406.

config SCSI_NCR_D700
	tristate "NCR Dual 700 MCA SCSI support"
	depends on MCA && SCSI
	select SCSI_SPI_ATTRS
	help
	  This is a driver for the MicroChannel Dual 700 card produced by
	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
	  tries to negotiate sync and uses tag command queueing.

	  Unless you have an NCR manufactured machine, the chances are that
	  you do not have this SCSI card, so say N.

config 53C700_IO_MAPPED
	bool
	depends on SCSI_NCR_D700
	default y

config SCSI_LASI700
	tristate "HP Lasi SCSI support for 53c700/710"
	depends on GSC && SCSI
	select SCSI_SPI_ATTRS
	help
	  This is a driver for the SCSI controller in the Lasi chip found in
	  many PA-RISC workstations & servers.  If you do not know whether you
	  have a Lasi chip, it is safe to say "Y" here.

config 53C700_MEM_MAPPED
	bool
	depends on SCSI_LASI700
	default y

config 53C700_LE_ON_BE
	bool
	depends on SCSI_LASI700
	default y

config SCSI_SYM53C8XX_2
	tristate "SYM53C8XX Version 2 SCSI support"
	depends on PCI && SCSI
	select SCSI_SPI_ATTRS
	---help---
	  This driver supports the whole NCR53C8XX/SYM53C8XX family of
	  PCI-SCSI controllers.  It also supports the subset of LSI53C10XX
	  Ultra-160 controllers that are based on the SYM53C8XX SCRIPTS
	  language.  It does not support LSI53C10XX Ultra-320 PCI-X SCSI
	  controllers; you need to use the Fusion MPT driver for that.

	  Please read <file:Documentation/scsi/sym53c8xx_2.txt> for more
	  information.

config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
	int "DMA addressing mode"
	depends on SCSI_SYM53C8XX_2
	default "1"
	---help---
	  This option only applies to PCI-SCSI chips that are PCI DAC
	  capable (875A, 895A, 896, 1010-33, 1010-66, 1000).

	  When set to 0, the driver will program the chip to only perform
	  32-bit DMA.  When set to 1, the chip will be able to perform DMA
	  to addresses up to 1TB.  When set to 2, the driver supports the
	  full 64-bit DMA address range, but can only address 16 segments
	  of 4 GB each.  This limits the total addressable range to 64 GB.

	  Most machines with less than 4GB of memory should use a setting
	  of 0 for best performance.  If your machine has 4GB of memory
	  or more, you should set this option to 1 (the default).

	  The still experimental value 2 (64 bit DMA addressing with 16
	  x 4GB segments limitation) can be used on systems that require
	  PCI address bits past bit 39 to be set for the addressing of
	  memory using PCI DAC cycles.

config SCSI_SYM53C8XX_DEFAULT_TAGS
	int "default tagged command queue depth"
	depends on SCSI_SYM53C8XX_2
	default "16"
	help
	  This is the default value of the command queue depth the
	  driver will announce to the generic SCSI layer for devices
	  that support tagged command queueing. This value can be changed
	  from the boot command line.  This is a soft limit that cannot
	  exceed CONFIG_SCSI_SYM53C8XX_MAX_TAGS.

config SCSI_SYM53C8XX_MAX_TAGS
	int "maximum number of queued commands"
	depends on SCSI_SYM53C8XX_2
	default "64"
	help
	  This option allows you to specify the maximum number of commands
	  that can be queued to any device, when tagged command queuing is
	  possible. The driver supports up to 256 queued commands per device.
	  This value is used as a compiled-in hard limit.

config SCSI_SYM53C8XX_IOMAPPED
	bool "use port IO"
	depends on SCSI_SYM53C8XX_2
	help
	  If you say Y here, the driver will use port IO to access
	  the card.  This is significantly slower then using memory
	  mapped IO.  Most people should answer N.

config SCSI_IPR
	tristate "IBM Power Linux RAID adapter support"
	depends on PCI && SCSI
	select FW_LOADER
	---help---
	  This driver supports the IBM Power Linux family RAID adapters.
	  This includes IBM pSeries 5712, 5703, 5709, and 570A, as well
	  as IBM iSeries 5702, 5703, 5709, and 570A.

config SCSI_IPR_TRACE
	bool "enable driver internal trace"
	depends on SCSI_IPR
	help
	  If you say Y here, the driver will trace all commands issued
	  to the adapter. Performance impact is minimal. Trace can be
	  dumped using /sys/bus/class/scsi_host/hostXX/trace.

config SCSI_IPR_DUMP
	bool "enable adapter dump support"
	depends on SCSI_IPR
	help
	  If you say Y here, the driver will support adapter crash dump.
	  If you enable this support, the iprdump daemon can be used
	  to capture adapter failure analysis information.

config SCSI_ZALON
	tristate "Zalon SCSI support"
	depends on GSC && SCSI
	help
	  The Zalon is a GSC/HSC bus interface chip that sits between the
	  PA-RISC processor and the NCR 53c720 SCSI controller on C100,
	  C110, J200, J210 and some D, K & R-class machines.  It's also
	  used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
	  Say Y here if you have one of these machines or cards.

config SCSI_NCR_Q720
	tristate "NCR Quad 720 MCA SCSI support"
	depends on MCA && SCSI
	help
	  This is a driver for the MicroChannel Quad 720 card produced by
	  NCR and commonly used in 345x/35xx/4100 class machines.  It always
	  tries to negotiate sync and uses tag command queueing.

	  Unless you have an NCR manufactured machine, the chances are that
	  you do not have this SCSI card, so say N.

config SCSI_NCR53C8XX_DEFAULT_TAGS
	int "  default tagged command queue depth"
	depends on SCSI_ZALON || SCSI_NCR_Q720
	default "8"
	---help---
	  "Tagged command queuing" is a feature of SCSI-2 which improves
	  performance: the host adapter can send several SCSI commands to a
	  device's queue even if previous commands haven't finished yet.