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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# AIC7XXX and AIC79XX 2.5.X Kernel configuration File.
3# $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic7xxx#7 $
4#
5config SCSI_AIC7XXX
6 tristate "Adaptec AIC7xxx Fast -> U160 support (New Driver)"
7 depends on (PCI || EISA) && SCSI
92d161c2005-04-17 16:59:33 -05008 select SCSI_SPI_ATTRS
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 ---help---
10 This driver supports all of Adaptec's Fast through Ultra 160 PCI
11 based SCSI controllers as well as the aic7770 based EISA and VLB
12 SCSI controllers (the 274x and 284x series). For AAA and ARO based
13 configurations, only SCSI functionality is provided.
14
15 To compile this driver as a module, choose M here: the
16 module will be called aic7xxx.
17
18config AIC7XXX_CMDS_PER_DEVICE
19 int "Maximum number of TCQ commands per device"
20 depends on SCSI_AIC7XXX
21 default "32"
22 ---help---
23 Specify the number of commands you would like to allocate per SCSI
24 device when Tagged Command Queueing (TCQ) is enabled on that device.
25
26 This is an upper bound value for the number of tagged transactions
27 to be used for any device. The aic7xxx driver will automatically
28 vary this number based on device behavior. For devices with a
29 fixed maximum, the driver will eventually lock to this maximum
Matt LaPlante09509602006-10-03 22:31:37 +020030 and display a console message indicating this value.
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
32 Due to resource allocation issues in the Linux SCSI mid-layer, using
33 a high number of commands per device may result in memory allocation
34 failures when many devices are attached to the system. For this reason,
Matt LaPlante09509602006-10-03 22:31:37 +020035 the default is set to 32. Higher values may result in higher performance
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 on some devices. The upper bound is 253. 0 disables tagged queueing.
37
38 Per device tag depth can be controlled via the kernel command line
39 "tag_info" option. See drivers/scsi/aic7xxx/README.aic7xxx
40 for details.
41
42config AIC7XXX_RESET_DELAY_MS
43 int "Initial bus reset delay in milli-seconds"
44 depends on SCSI_AIC7XXX
James Bottomleydacee842006-01-10 12:11:42 -060045 default "5000"
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 ---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
James Bottomleydacee842006-01-10 12:11:42 -060051 Default: 5000 (5 seconds)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Linus Torvalds1da177e2005-04-16 15:20:36 -070053config 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
Adrian Bunk5637a2e2006-04-01 01:03:38 +020079 CONFIG_AIC7XXX_DEBUG_ENABLE option is enabled. The bits in this mask
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 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.