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