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) && 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 reason,
36	the default is set to 32.  Higher values may result in higher performance
37	on some devices.  The upper bound is 253.  0 disables tagged queueing.
38
39	Per device tag depth can be controlled via the kernel command line
40	"tag_info" option.  See Documentation/scsi/aic7xxx.rst for details.
41
42config AIC7XXX_RESET_DELAY_MS
43	int "Initial bus reset delay in milli-seconds"
44	depends on SCSI_AIC7XXX
45	default "5000"
46	help
47	The number of milliseconds to delay after an initial bus reset.
48	The bus settle delay following all error recovery actions is
49	dictated by the SCSI layer and is not affected by this value.
50
51	Default: 5000 (5 seconds)
52
53config AIC7XXX_BUILD_FIRMWARE
54	bool "Build Adapter Firmware with Kernel Build"
55	depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD
56	help
57	This option should only be enabled if you are modifying the firmware
58	source to the aic7xxx driver and wish to have the generated firmware
59	include files updated during a normal kernel build.  The assembler
60	for the firmware requires lex and yacc or their equivalents, as well
61	as the db v1 library.  You may have to install additional packages
62	or modify the assembler Makefile or the files it includes if your
63	build environment is different than that of the author.
64
65config AIC7XXX_DEBUG_ENABLE
66	bool "Compile in Debugging Code"
67	depends on SCSI_AIC7XXX
68	default y
69	help
70	Compile in aic7xxx debugging code that can be useful in diagnosing
71	driver errors.
72
73config AIC7XXX_DEBUG_MASK
74        int "Debug code enable mask (2047 for all debugging)"
75        depends on SCSI_AIC7XXX
76        default "0"
77        help
78	Bit mask of debug options that is only valid if the
79	CONFIG_AIC7XXX_DEBUG_ENABLE option is enabled.  The bits in this mask
80	are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the
81	variable ahc_debug in that file to find them.
82
83config AIC7XXX_REG_PRETTY_PRINT
84        bool "Decode registers during diagnostics"
85        depends on SCSI_AIC7XXX
86	default y
87        help
88	Compile in register value tables for the output of expanded register
89	contents in diagnostics.  This make it much easier to understand debug
90	output without having to refer to a data book and/or the aic7xxx.reg
91	file.
92