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 ---help--- 9 This driver supports all of Adaptec's Fast through Ultra 160 PCI 10 based SCSI controllers as well as the aic7770 based EISA and VLB 11 SCSI controllers (the 274x and 284x series). For AAA and ARO based 12 configurations, only SCSI functionality is provided. 13 14 To compile this driver as a module, choose M here: the 15 module will be called aic7xxx. 16 17config AIC7XXX_CMDS_PER_DEVICE 18 int "Maximum number of TCQ commands per device" 19 depends on SCSI_AIC7XXX 20 default "32" 21 ---help--- 22 Specify the number of commands you would like to allocate per SCSI 23 device when Tagged Command Queueing (TCQ) is enabled on that device. 24 25 This is an upper bound value for the number of tagged transactions 26 to be used for any device. The aic7xxx driver will automatically 27 vary this number based on device behavior. For devices with a 28 fixed maximum, the driver will eventually lock to this maximum 29 and display a console message inidicating this value. 30 31 Due to resource allocation issues in the Linux SCSI mid-layer, using 32 a high number of commands per device may result in memory allocation 33 failures when many devices are attached to the system. For this reason, 34 the default is set to 32. Higher values may result in higer performance 35 on some devices. The upper bound is 253. 0 disables tagged queueing. 36 37 Per device tag depth can be controlled via the kernel command line 38 "tag_info" option. See drivers/scsi/aic7xxx/README.aic7xxx 39 for details. 40 41config AIC7XXX_RESET_DELAY_MS 42 int "Initial bus reset delay in milli-seconds" 43 depends on SCSI_AIC7XXX 44 default "15000" 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: 15000 (15 seconds) 51 52config AIC7XXX_PROBE_EISA_VL 53 bool "Probe for EISA and VL AIC7XXX Adapters" 54 depends on SCSI_AIC7XXX && EISA 55 help 56 Probe for EISA and VLB Aic7xxx controllers. In many newer systems, 57 the invasive probes necessary to detect these controllers can cause 58 other devices to fail. For this reason, the non-PCI probe code is 59 disabled by default. The current value of this option can be "toggled" 60 via the no_probe kernel command line option. 61 62config AIC7XXX_BUILD_FIRMWARE 63 bool "Build Adapter Firmware with Kernel Build" 64 depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD 65 help 66 This option should only be enabled if you are modifying the firmware 67 source to the aic7xxx driver and wish to have the generated firmware 68 include files updated during a normal kernel build. The assembler 69 for the firmware requires lex and yacc or their equivalents, as well 70 as the db v1 library. You may have to install additional packages 71 or modify the assembler Makefile or the files it includes if your 72 build environment is different than that of the author. 73 74config AIC7XXX_DEBUG_ENABLE 75 bool "Compile in Debugging Code" 76 depends on SCSI_AIC7XXX 77 default y 78 help 79 Compile in aic7xxx debugging code that can be useful in diagnosing 80 driver errors. 81 82config AIC7XXX_DEBUG_MASK 83 int "Debug code enable mask (2047 for all debugging)" 84 depends on SCSI_AIC7XXX 85 default "0" 86 help 87 Bit mask of debug options that is only valid if the 88 CONFIG_AIC7XXX_DEBUG_ENBLE option is enabled. The bits in this mask 89 are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the 90 variable ahc_debug in that file to find them. 91 92config AIC7XXX_REG_PRETTY_PRINT 93 bool "Decode registers during diagnostics" 94 depends on SCSI_AIC7XXX 95 default y 96 help 97 Compile in register value tables for the output of expanded register 98 contents in diagnostics. This make it much easier to understand debug 99 output without having to refer to a data book and/or the aic7xxx.reg 100 file. 101