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1da177e4 LT |
1 | # |
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 | # | |
5 | config SCSI_AIC7XXX | |
6 | tristate "Adaptec AIC7xxx Fast -> U160 support (New Driver)" | |
7 | depends on (PCI || EISA) && SCSI | |
8 | ---help--- | |
9 | This driver supports all of Adaptec's Fast through Ultra 160 PCI | |
10 | based SCSI controllers as well as the aic7770 based EISA and VLB | |
11 | SCSI controllers (the 274x and 284x series). For AAA and ARO based | |
12 | configurations, only SCSI functionality is provided. | |
13 | ||
14 | To compile this driver as a module, choose M here: the | |
15 | module will be called aic7xxx. | |
16 | ||
17 | config AIC7XXX_CMDS_PER_DEVICE | |
18 | int "Maximum number of TCQ commands per device" | |
19 | depends on SCSI_AIC7XXX | |
20 | default "32" | |
21 | ---help--- | |
22 | Specify the number of commands you would like to allocate per SCSI | |
23 | device when Tagged Command Queueing (TCQ) is enabled on that device. | |
24 | ||
25 | This is an upper bound value for the number of tagged transactions | |
26 | to be used for any device. The aic7xxx driver will automatically | |
27 | vary this number based on device behavior. For devices with a | |
28 | fixed maximum, the driver will eventually lock to this maximum | |
29 | and display a console message inidicating this value. | |
30 | ||
31 | Due to resource allocation issues in the Linux SCSI mid-layer, using | |
32 | a high number of commands per device may result in memory allocation | |
33 | failures when many devices are attached to the system. For this reason, | |
34 | the default is set to 32. Higher values may result in higer performance | |
35 | on some devices. The upper bound is 253. 0 disables tagged queueing. | |
36 | ||
37 | Per device tag depth can be controlled via the kernel command line | |
38 | "tag_info" option. See drivers/scsi/aic7xxx/README.aic7xxx | |
39 | for details. | |
40 | ||
41 | config AIC7XXX_RESET_DELAY_MS | |
42 | int "Initial bus reset delay in milli-seconds" | |
43 | depends on SCSI_AIC7XXX | |
44 | default "15000" | |
45 | ---help--- | |
46 | The number of milliseconds to delay after an initial bus reset. | |
47 | The bus settle delay following all error recovery actions is | |
48 | dictated by the SCSI layer and is not affected by this value. | |
49 | ||
50 | Default: 15000 (15 seconds) | |
51 | ||
52 | config AIC7XXX_PROBE_EISA_VL | |
53 | bool "Probe for EISA and VL AIC7XXX Adapters" | |
54 | depends on SCSI_AIC7XXX && EISA | |
55 | help | |
56 | Probe for EISA and VLB Aic7xxx controllers. In many newer systems, | |
57 | the invasive probes necessary to detect these controllers can cause | |
58 | other devices to fail. For this reason, the non-PCI probe code is | |
59 | disabled by default. The current value of this option can be "toggled" | |
60 | via the no_probe kernel command line option. | |
61 | ||
62 | config AIC7XXX_BUILD_FIRMWARE | |
63 | bool "Build Adapter Firmware with Kernel Build" | |
64 | depends on SCSI_AIC7XXX && !PREVENT_FIRMWARE_BUILD | |
65 | help | |
66 | This option should only be enabled if you are modifying the firmware | |
67 | source to the aic7xxx driver and wish to have the generated firmware | |
68 | include files updated during a normal kernel build. The assembler | |
69 | for the firmware requires lex and yacc or their equivalents, as well | |
70 | as the db v1 library. You may have to install additional packages | |
71 | or modify the assembler Makefile or the files it includes if your | |
72 | build environment is different than that of the author. | |
73 | ||
74 | config AIC7XXX_DEBUG_ENABLE | |
75 | bool "Compile in Debugging Code" | |
76 | depends on SCSI_AIC7XXX | |
77 | default y | |
78 | help | |
79 | Compile in aic7xxx debugging code that can be useful in diagnosing | |
80 | driver errors. | |
81 | ||
82 | config AIC7XXX_DEBUG_MASK | |
83 | int "Debug code enable mask (2047 for all debugging)" | |
84 | depends on SCSI_AIC7XXX | |
85 | default "0" | |
86 | help | |
87 | Bit mask of debug options that is only valid if the | |
88 | CONFIG_AIC7XXX_DEBUG_ENBLE option is enabled. The bits in this mask | |
89 | are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the | |
90 | variable ahc_debug in that file to find them. | |
91 | ||
92 | config AIC7XXX_REG_PRETTY_PRINT | |
93 | bool "Decode registers during diagnostics" | |
94 | depends on SCSI_AIC7XXX | |
95 | default y | |
96 | help | |
97 | Compile in register value tables for the output of expanded register | |
98 | contents in diagnostics. This make it much easier to understand debug | |
99 | output without having to refer to a data book and/or the aic7xxx.reg | |
100 | file. |