LXR linux/drivers/scsi/aic7xxx/Kconfig.aic79xx

   1# SPDX-License-Identifier: GPL-2.0-only
   2#
   3# AIC79XX 2.5.X Kernel configuration File.
   4# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
   5#
   6config SCSI_AIC79XX
   7        tristate "Adaptec AIC79xx U320 support"
   8        depends on PCI && SCSI
   9        select SCSI_SPI_ATTRS
  10        help
  11        This driver supports all of Adaptec's Ultra 320 PCI-X
  12        based SCSI controllers.
  13
  14config AIC79XX_CMDS_PER_DEVICE
  15        int "Maximum number of TCQ commands per device"
  16        depends on SCSI_AIC79XX
  17        default "32"
  18        help
  19        Specify the number of commands you would like to allocate per SCSI
  20        device when Tagged Command Queueing (TCQ) is enabled on that device.
  21
  22        This is an upper bound value for the number of tagged transactions
  23        to be used for any device.  The aic7xxx driver will automatically
  24        vary this number based on device behavior.  For devices with a
  25        fixed maximum, the driver will eventually lock to this maximum
  26        and display a console message indicating this value.
  27
  28        Due to resource allocation issues in the Linux SCSI mid-layer, using
  29        a high number of commands per device may result in memory allocation
  30        failures when many devices are attached to the system.  For this reason,
  31        the default is set to 32.  Higher values may result in higher performance
  32        on some devices.  The upper bound is 253.  0 disables tagged queueing.
  33
  34        Per device tag depth can be controlled via the kernel command line
  35        "tag_info" option.  See Documentation/scsi/aic79xx.rst for details.
  36
  37config AIC79XX_RESET_DELAY_MS
  38        int "Initial bus reset delay in milli-seconds"
  39        depends on SCSI_AIC79XX
  40        default "5000"
  41        help
  42        The number of milliseconds to delay after an initial bus reset.
  43        The bus settle delay following all error recovery actions is
  44        dictated by the SCSI layer and is not affected by this value.
  45
  46        Default: 5000 (5 seconds)
  47
  48config AIC79XX_BUILD_FIRMWARE
  49        bool "Build Adapter Firmware with Kernel Build"
  50        depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
  51        help
  52        This option should only be enabled if you are modifying the firmware
  53        source to the aic79xx driver and wish to have the generated firmware
  54        include files updated during a normal kernel build.  The assembler
  55        for the firmware requires lex and yacc or their equivalents, as well
  56        as the db v1 library.  You may have to install additional packages
  57        or modify the assembler Makefile or the files it includes if your
  58        build environment is different than that of the author.
  59
  60config AIC79XX_DEBUG_ENABLE
  61        bool "Compile in Debugging Code"
  62        depends on SCSI_AIC79XX
  63        default y
  64        help
  65        Compile in aic79xx debugging code that can be useful in diagnosing
  66        driver errors.
  67
  68config AIC79XX_DEBUG_MASK
  69        int "Debug code enable mask (16383 for all debugging)"
  70        depends on SCSI_AIC79XX
  71        default "0"
  72        help
  73        Bit mask of debug options that is only valid if the
  74        CONFIG_AIC79XX_DEBUG_ENABLE option is enabled.  The bits in this mask
  75        are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
  76        variable ahd_debug in that file to find them.
  77
  78config AIC79XX_REG_PRETTY_PRINT
  79        bool "Decode registers during diagnostics"
  80        depends on SCSI_AIC79XX
  81        default y
  82        help
  83        Compile in register value tables for the output of expanded register
  84        contents in diagnostics.  This make it much easier to understand debug
  85        output without having to refer to a data book and/or the aic7xxx.reg
  86        file.
  87