1 # SPDX-License-Identifier: GPL-2.0-only
3 # AIC79XX 2.5.X Kernel configuration File.
4 # $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
7 tristate "Adaptec AIC79xx U320 support"
8 depends on PCI && HAS_IOPORT && SCSI
11 This driver supports all of Adaptec's Ultra 320 PCI-X
12 based SCSI controllers.
14 config AIC79XX_CMDS_PER_DEVICE
15 int "Maximum number of TCQ commands per device"
16 depends on SCSI_AIC79XX
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.
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.
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
31 reason, the default is set to 32. Higher values may result in higher
32 performance on some devices. The upper bound is 253. 0 disables
35 Per device tag depth can be controlled via the kernel command line
36 "tag_info" option. See Documentation/scsi/aic79xx.rst for details.
38 config AIC79XX_RESET_DELAY_MS
39 int "Initial bus reset delay in milli-seconds"
40 depends on SCSI_AIC79XX
43 The number of milliseconds to delay after an initial bus reset.
44 The bus settle delay following all error recovery actions is
45 dictated by the SCSI layer and is not affected by this value.
47 Default: 5000 (5 seconds)
49 config AIC79XX_BUILD_FIRMWARE
50 bool "Build Adapter Firmware with Kernel Build"
51 depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
53 This option should only be enabled if you are modifying the firmware
54 source to the aic79xx driver and wish to have the generated firmware
55 include files updated during a normal kernel build. The assembler
56 for the firmware requires lex and yacc or their equivalents, as well
57 as the db v1 library. You may have to install additional packages
58 or modify the assembler Makefile or the files it includes if your
59 build environment is different than that of the author.
61 config AIC79XX_DEBUG_ENABLE
62 bool "Compile in Debugging Code"
63 depends on SCSI_AIC79XX
66 Compile in aic79xx debugging code that can be useful in diagnosing
69 config AIC79XX_DEBUG_MASK
70 int "Debug code enable mask (16383 for all debugging)"
71 depends on SCSI_AIC79XX
74 Bit mask of debug options that is only valid if the
75 CONFIG_AIC79XX_DEBUG_ENABLE option is enabled. The bits in this mask
76 are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
77 variable ahd_debug in that file to find them.
79 config AIC79XX_REG_PRETTY_PRINT
80 bool "Decode registers during diagnostics"
81 depends on SCSI_AIC79XX
84 Compile in register value tables for the output of expanded register
85 contents in diagnostics. This make it much easier to understand debug
86 output without having to refer to a data book and/or the aic7xxx.reg