2005-04-16 22:20:36 +00:00
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#
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# AIC79XX 2.5.X Kernel configuration File.
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# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
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#
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config SCSI_AIC79XX
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tristate "Adaptec AIC79xx U320 support"
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depends on PCI && SCSI
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2005-08-07 06:32:07 +00:00
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select SCSI_SPI_ATTRS
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2005-04-16 22:20:36 +00:00
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help
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This driver supports all of Adaptec's Ultra 320 PCI-X
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based SCSI controllers.
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config AIC79XX_CMDS_PER_DEVICE
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int "Maximum number of TCQ commands per device"
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depends on SCSI_AIC79XX
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default "32"
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---help---
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Specify the number of commands you would like to allocate per SCSI
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device when Tagged Command Queueing (TCQ) is enabled on that device.
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This is an upper bound value for the number of tagged transactions
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to be used for any device. The aic7xxx driver will automatically
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vary this number based on device behavior. For devices with a
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fixed maximum, the driver will eventually lock to this maximum
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and display a console message inidicating this value.
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Due to resource allocation issues in the Linux SCSI mid-layer, using
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a high number of commands per device may result in memory allocation
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failures when many devices are attached to the system. For this reason,
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the default is set to 32. Higher values may result in higer performance
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on some devices. The upper bound is 253. 0 disables tagged queueing.
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Per device tag depth can be controlled via the kernel command line
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"tag_info" option. See drivers/scsi/aic7xxx/README.aic79xx
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for details.
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config AIC79XX_RESET_DELAY_MS
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int "Initial bus reset delay in milli-seconds"
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depends on SCSI_AIC79XX
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default "15000"
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---help---
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The number of milliseconds to delay after an initial bus reset.
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The bus settle delay following all error recovery actions is
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dictated by the SCSI layer and is not affected by this value.
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Default: 15000 (15 seconds)
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config AIC79XX_BUILD_FIRMWARE
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bool "Build Adapter Firmware with Kernel Build"
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depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
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help
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This option should only be enabled if you are modifying the firmware
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source to the aic79xx driver and wish to have the generated firmware
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include files updated during a normal kernel build. The assembler
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for the firmware requires lex and yacc or their equivalents, as well
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as the db v1 library. You may have to install additional packages
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or modify the assembler Makefile or the files it includes if your
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build environment is different than that of the author.
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config AIC79XX_ENABLE_RD_STRM
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bool "Enable Read Streaming for All Targets"
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depends on SCSI_AIC79XX
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default n
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help
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Read Streaming is a U320 protocol option that should enhance
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performance. Early U320 drive firmware actually performs slower
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with read streaming enabled so it is disabled by default. Read
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Streaming can be configured in much the same way as tagged queueing
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using the "rd_strm" command line option. See
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drivers/scsi/aic7xxx/README.aic79xx for details.
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config AIC79XX_DEBUG_ENABLE
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bool "Compile in Debugging Code"
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depends on SCSI_AIC79XX
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default y
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help
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Compile in aic79xx debugging code that can be useful in diagnosing
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driver errors.
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config AIC79XX_DEBUG_MASK
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int "Debug code enable mask (16383 for all debugging)"
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depends on SCSI_AIC79XX
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default "0"
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help
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Bit mask of debug options that is only valid if the
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CONFIG_AIC79XX_DEBUG_ENBLE option is enabled. The bits in this mask
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are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
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variable ahd_debug in that file to find them.
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config AIC79XX_REG_PRETTY_PRINT
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bool "Decode registers during diagnostics"
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depends on SCSI_AIC79XX
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default y
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help
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Compile in register value tables for the output of expanded register
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contents in diagnostics. This make it much easier to understand debug
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output without having to refer to a data book and/or the aic7xxx.reg
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file.
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