1# 2# AIC7XXX and AIC79XX 2.5.X Kernel configuration File. 3# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic7xxx#7 $ 4# 5config SCSI_AIC7XXX 6 tristate "Adaptec AIC7xxx Fast -> U160 support (New Driver)" 7 depends on (PCI || EISA) && SCSI 8 select SCSI_SPI_ATTRS 9 ---help--- 10 This driver supports all of Adaptec's Fast through Ultra 160 PCI 11 based SCSI controllers as well as the aic7770 based EISA and VLB 12 SCSI controllers (the 274x and 284x series). For AAA and ARO based 13 configurations, only SCSI functionality is provided. 14 15 To compile this driver as a module, choose M here: the 16 module will be called aic7xxx. 17 18config AIC7XXX_CMDS_PER_DEVICE 19 int "Maximum number of TCQ commands per device" 20 depends on SCSI_AIC7XXX 21 default "32" 22 ---help--- 23 Specify the number of commands you would like to allocate per SCSI 24 device when Tagged Command Queueing (TCQ) is enabled on that device. 25 26 This is an upper bound value for the number of tagged transactions 27 to be used for any device. The aic7xxx driver will automatically 28 vary this number based on device behavior. For devices with a 29 fixed maximum, the driver will eventually lock to this maximum 30 and display a console message indicating this value. 31 32 Due to resource allocation issues in the Linux SCSI mid-layer, using 33 a high number of commands per device may result in memory allocation 34 failures when many devices are attached to the system. For this reason, 35 the default is set to 32. Higher values may result in higher performance 36 on some devices. The upper bound is 253. 0 disables tagged queueing. 37 38 Per device tag depth can be controlled via the kernel command line 39 "tag_info" option. See Documentation/scsi/aic7xxx.txt for details. 40 41config AIC7XXX_RESET_DELAY_MS 42 int "Initial bus reset delay in milli-seconds" 43 depends on SCSI_AIC7XXX 44 default "5000" 45 ---help--- 46 The number of milliseconds to delay after an initial bus reset. 47 The bus settle delay following all error recovery actions is 48 dictated by the SCSI layer and is not affected by this value. 49 50 Default: 5000 (5 seconds) 51 52config AIC7XXX_BUILD_FIRMWARE 53 bool "Build Adapter Firmware with Kernel Build" 54 depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD 55 help 56 This option should only be enabled if you are modifying the firmware 57 source to the aic7xxx driver and wish to have the generated firmware 58 include files updated during a normal kernel build. The assembler 59 for the firmware requires lex and yacc or their equivalents, as well 60 as the db v1 library. You may have to install additional packages 61 or modify the assembler Makefile or the files it includes if your 62 build environment is different than that of the author. 63 64config AIC7XXX_DEBUG_ENABLE 65 bool "Compile in Debugging Code" 66 depends on SCSI_AIC7XXX 67 default y 68 help 69 Compile in aic7xxx debugging code that can be useful in diagnosing 70 driver errors. 71 72config AIC7XXX_DEBUG_MASK 73 int "Debug code enable mask (2047 for all debugging)" 74 depends on SCSI_AIC7XXX 75 default "0" 76 help 77 Bit mask of debug options that is only valid if the 78 CONFIG_AIC7XXX_DEBUG_ENABLE option is enabled. The bits in this mask 79 are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the 80 variable ahc_debug in that file to find them. 81 82config AIC7XXX_REG_PRETTY_PRINT 83 bool "Decode registers during diagnostics" 84 depends on SCSI_AIC7XXX 85 default y 86 help 87 Compile in register value tables for the output of expanded register 88 contents in diagnostics. This make it much easier to understand debug 89 output without having to refer to a data book and/or the aic7xxx.reg 90 file. 91