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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/aic7xxx/Kconfig.aic79xx
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+#
+# AIC79XX 2.5.X Kernel configuration File.
+# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
+#
+config SCSI_AIC79XX
+ tristate "Adaptec AIC79xx U320 support"
+ depends on PCI && SCSI
+ help
+ This driver supports all of Adaptec's Ultra 320 PCI-X
+ based SCSI controllers.
+
+config AIC79XX_CMDS_PER_DEVICE
+ int "Maximum number of TCQ commands per device"
+ depends on SCSI_AIC79XX
+ default "32"
+ ---help---
+ Specify the number of commands you would like to allocate per SCSI
+ device when Tagged Command Queueing (TCQ) is enabled on that device.
+
+ This is an upper bound value for the number of tagged transactions
+ to be used for any device. The aic7xxx driver will automatically
+ vary this number based on device behavior. For devices with a
+ fixed maximum, the driver will eventually lock to this maximum
+ and display a console message inidicating this value.
+
+ Due to resource allocation issues in the Linux SCSI mid-layer, using
+ a high number of commands per device may result in memory allocation
+ failures when many devices are attached to the system. For this reason,
+ the default is set to 32. Higher values may result in higer performance
+ on some devices. The upper bound is 253. 0 disables tagged queueing.
+
+ Per device tag depth can be controlled via the kernel command line
+ "tag_info" option. See drivers/scsi/aic7xxx/README.aic79xx
+ for details.
+
+config AIC79XX_RESET_DELAY_MS
+ int "Initial bus reset delay in milli-seconds"
+ depends on SCSI_AIC79XX
+ default "15000"
+ ---help---
+ The number of milliseconds to delay after an initial bus reset.
+ The bus settle delay following all error recovery actions is
+ dictated by the SCSI layer and is not affected by this value.
+
+ Default: 15000 (15 seconds)
+
+config AIC79XX_BUILD_FIRMWARE
+ bool "Build Adapter Firmware with Kernel Build"
+ depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
+ help
+ This option should only be enabled if you are modifying the firmware
+ source to the aic79xx driver and wish to have the generated firmware
+ include files updated during a normal kernel build. The assembler
+ for the firmware requires lex and yacc or their equivalents, as well
+ as the db v1 library. You may have to install additional packages
+ or modify the assembler Makefile or the files it includes if your
+ build environment is different than that of the author.
+
+config AIC79XX_ENABLE_RD_STRM
+ bool "Enable Read Streaming for All Targets"
+ depends on SCSI_AIC79XX
+ default n
+ help
+ Read Streaming is a U320 protocol option that should enhance
+ performance. Early U320 drive firmware actually performs slower
+ with read streaming enabled so it is disabled by default. Read
+ Streaming can be configured in much the same way as tagged queueing
+ using the "rd_strm" command line option. See
+ drivers/scsi/aic7xxx/README.aic79xx for details.
+
+config AIC79XX_DEBUG_ENABLE
+ bool "Compile in Debugging Code"
+ depends on SCSI_AIC79XX
+ default y
+ help
+ Compile in aic79xx debugging code that can be useful in diagnosing
+ driver errors.
+
+config AIC79XX_DEBUG_MASK
+ int "Debug code enable mask (16383 for all debugging)"
+ depends on SCSI_AIC79XX
+ default "0"
+ help
+ Bit mask of debug options that is only valid if the
+ CONFIG_AIC79XX_DEBUG_ENBLE option is enabled. The bits in this mask
+ are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
+ variable ahd_debug in that file to find them.
+
+config AIC79XX_REG_PRETTY_PRINT
+ bool "Decode registers during diagnostics"
+ depends on SCSI_AIC79XX
+ default y
+ help
+ Compile in register value tables for the output of expanded register
+ contents in diagnostics. This make it much easier to understand debug
+ output without having to refer to a data book and/or the aic7xxx.reg
+ file.