1# SPDX-License-Identifier: GPL-2.0-only 2# 3# AIC7XXX and AIC79XX 2.5.X Kernel configuration File. 4# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic7xxx#7 $ 5# 6config SCSI_AIC7XXX 7 tristate "Adaptec AIC7xxx Fast -> U160 support" 8 depends on (PCI || EISA) && HAS_IOPORT && SCSI 9 select SCSI_SPI_ATTRS 10 help 11 This driver supports all of Adaptec's Fast through Ultra 160 PCI 12 based SCSI controllers as well as the aic7770 based EISA and VLB 13 SCSI controllers (the 274x and 284x series). For AAA and ARO based 14 configurations, only SCSI functionality is provided. 15 16 To compile this driver as a module, choose M here: the 17 module will be called aic7xxx. 18 19config AIC7XXX_CMDS_PER_DEVICE 20 int "Maximum number of TCQ commands per device" 21 depends on SCSI_AIC7XXX 22 default "32" 23 help 24 Specify the number of commands you would like to allocate per SCSI 25 device when Tagged Command Queueing (TCQ) is enabled on that device. 26 27 This is an upper bound value for the number of tagged transactions 28 to be used for any device. The aic7xxx driver will automatically 29 vary this number based on device behavior. For devices with a 30 fixed maximum, the driver will eventually lock to this maximum 31 and display a console message indicating this value. 32 33 Due to resource allocation issues in the Linux SCSI mid-layer, using 34 a high number of commands per device may result in memory allocation 35 failures when many devices are attached to the system. For this 36 reason, the default is set to 32. Higher values may result in higher 37 performance on some devices. The upper bound is 253. 0 disables tagged 38 queueing. 39 40 Per device tag depth can be controlled via the kernel command line 41 "tag_info" option. See Documentation/scsi/aic7xxx.rst for details. 42 43config AIC7XXX_RESET_DELAY_MS 44 int "Initial bus reset delay in milli-seconds" 45 depends on SCSI_AIC7XXX 46 default "5000" 47 help 48 The number of milliseconds to delay after an initial bus reset. 49 The bus settle delay following all error recovery actions is 50 dictated by the SCSI layer and is not affected by this value. 51 52 Default: 5000 (5 seconds) 53 54config AIC7XXX_BUILD_FIRMWARE 55 bool "Build Adapter Firmware with Kernel Build" 56 depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD 57 help 58 This option should only be enabled if you are modifying the firmware 59 source to the aic7xxx driver and wish to have the generated firmware 60 include files updated during a normal kernel build. The assembler 61 for the firmware requires lex and yacc or their equivalents, as well 62 as the db v1 library. You may have to install additional packages 63 or modify the assembler Makefile or the files it includes if your 64 build environment is different than that of the author. 65 66config AIC7XXX_DEBUG_ENABLE 67 bool "Compile in Debugging Code" 68 depends on SCSI_AIC7XXX 69 default y 70 help 71 Compile in aic7xxx debugging code that can be useful in diagnosing 72 driver errors. 73 74config AIC7XXX_DEBUG_MASK 75 int "Debug code enable mask (2047 for all debugging)" 76 depends on SCSI_AIC7XXX 77 default "0" 78 help 79 Bit mask of debug options that is only valid if the 80 CONFIG_AIC7XXX_DEBUG_ENABLE option is enabled. The bits in this mask 81 are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the 82 variable ahc_debug in that file to find them. 83 84config AIC7XXX_REG_PRETTY_PRINT 85 bool "Decode registers during diagnostics" 86 depends on SCSI_AIC7XXX 87 default y 88 help 89 Compile in register value tables for the output of expanded register 90 contents in diagnostics. This make it much easier to understand debug 91 output without having to refer to a data book and/or the aic7xxx.reg 92 file. 93