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1 #
2 # AIC79XX 2.5.X Kernel configuration File.
3 # $Id: //depot/linux-aic79xx-2.5.0/drivers/scsi/aic7xxx/Kconfig.aic79xx#4 $
4 #
5 config SCSI_AIC79XX
6 tristate "Adaptec AIC79xx U320 support"
7 depends on PCI && SCSI
8 select SCSI_SPI_ATTRS
9 help
10 This driver supports all of Adaptec's Ultra 320 PCI-X
11 based SCSI controllers.
12
13 config AIC79XX_CMDS_PER_DEVICE
14 int "Maximum number of TCQ commands per device"
15 depends on SCSI_AIC79XX
16 default "32"
17 ---help---
18 Specify the number of commands you would like to allocate per SCSI
19 device when Tagged Command Queueing (TCQ) is enabled on that device.
20
21 This is an upper bound value for the number of tagged transactions
22 to be used for any device. The aic7xxx driver will automatically
23 vary this number based on device behavior. For devices with a
24 fixed maximum, the driver will eventually lock to this maximum
25 and display a console message indicating this value.
26
27 Due to resource allocation issues in the Linux SCSI mid-layer, using
28 a high number of commands per device may result in memory allocation
29 failures when many devices are attached to the system. For this reason,
30 the default is set to 32. Higher values may result in higher performance
31 on some devices. The upper bound is 253. 0 disables tagged queueing.
32
33 Per device tag depth can be controlled via the kernel command line
34 "tag_info" option. See Documentation/scsi/aic79xx.txt for details.
35
36 config AIC79XX_RESET_DELAY_MS
37 int "Initial bus reset delay in milli-seconds"
38 depends on SCSI_AIC79XX
39 default "5000"
40 ---help---
41 The number of milliseconds to delay after an initial bus reset.
42 The bus settle delay following all error recovery actions is
43 dictated by the SCSI layer and is not affected by this value.
44
45 Default: 5000 (5 seconds)
46
47 config AIC79XX_BUILD_FIRMWARE
48 bool "Build Adapter Firmware with Kernel Build"
49 depends on SCSI_AIC79XX && !PREVENT_FIRMWARE_BUILD
50 help
51 This option should only be enabled if you are modifying the firmware
52 source to the aic79xx driver and wish to have the generated firmware
53 include files updated during a normal kernel build. The assembler
54 for the firmware requires lex and yacc or their equivalents, as well
55 as the db v1 library. You may have to install additional packages
56 or modify the assembler Makefile or the files it includes if your
57 build environment is different than that of the author.
58
59 config AIC79XX_DEBUG_ENABLE
60 bool "Compile in Debugging Code"
61 depends on SCSI_AIC79XX
62 default y
63 help
64 Compile in aic79xx debugging code that can be useful in diagnosing
65 driver errors.
66
67 config AIC79XX_DEBUG_MASK
68 int "Debug code enable mask (16383 for all debugging)"
69 depends on SCSI_AIC79XX
70 default "0"
71 help
72 Bit mask of debug options that is only valid if the
73 CONFIG_AIC79XX_DEBUG_ENBLE option is enabled. The bits in this mask
74 are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the
75 variable ahd_debug in that file to find them.
76
77 config AIC79XX_REG_PRETTY_PRINT
78 bool "Decode registers during diagnostics"
79 depends on SCSI_AIC79XX
80 default y
81 help
82 Compile in register value tables for the output of expanded register
83 contents in diagnostics. This make it much easier to understand debug
84 output without having to refer to a data book and/or the aic7xxx.reg
85 file.