diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/aic7xxx/Kconfig.aic79xx |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/aic7xxx/Kconfig.aic79xx')
-rw-r--r-- | drivers/scsi/aic7xxx/Kconfig.aic79xx | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/Kconfig.aic79xx b/drivers/scsi/aic7xxx/Kconfig.aic79xx new file mode 100644 index 000000000000..c2523a30a7f5 --- /dev/null +++ b/drivers/scsi/aic7xxx/Kconfig.aic79xx | |||
@@ -0,0 +1,97 @@ | |||
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 | help | ||
9 | This driver supports all of Adaptec's Ultra 320 PCI-X | ||
10 | based SCSI controllers. | ||
11 | |||
12 | config AIC79XX_CMDS_PER_DEVICE | ||
13 | int "Maximum number of TCQ commands per device" | ||
14 | depends on SCSI_AIC79XX | ||
15 | default "32" | ||
16 | ---help--- | ||
17 | Specify the number of commands you would like to allocate per SCSI | ||
18 | device when Tagged Command Queueing (TCQ) is enabled on that device. | ||
19 | |||
20 | This is an upper bound value for the number of tagged transactions | ||
21 | to be used for any device. The aic7xxx driver will automatically | ||
22 | vary this number based on device behavior. For devices with a | ||
23 | fixed maximum, the driver will eventually lock to this maximum | ||
24 | and display a console message inidicating this value. | ||
25 | |||
26 | Due to resource allocation issues in the Linux SCSI mid-layer, using | ||
27 | a high number of commands per device may result in memory allocation | ||
28 | failures when many devices are attached to the system. For this reason, | ||
29 | the default is set to 32. Higher values may result in higer performance | ||
30 | on some devices. The upper bound is 253. 0 disables tagged queueing. | ||
31 | |||
32 | Per device tag depth can be controlled via the kernel command line | ||
33 | "tag_info" option. See drivers/scsi/aic7xxx/README.aic79xx | ||
34 | 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 "15000" | ||
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: 15000 (15 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_ENABLE_RD_STRM | ||
60 | bool "Enable Read Streaming for All Targets" | ||
61 | depends on SCSI_AIC79XX | ||
62 | default n | ||
63 | help | ||
64 | Read Streaming is a U320 protocol option that should enhance | ||
65 | performance. Early U320 drive firmware actually performs slower | ||
66 | with read streaming enabled so it is disabled by default. Read | ||
67 | Streaming can be configured in much the same way as tagged queueing | ||
68 | using the "rd_strm" command line option. See | ||
69 | drivers/scsi/aic7xxx/README.aic79xx for details. | ||
70 | |||
71 | config AIC79XX_DEBUG_ENABLE | ||
72 | bool "Compile in Debugging Code" | ||
73 | depends on SCSI_AIC79XX | ||
74 | default y | ||
75 | help | ||
76 | Compile in aic79xx debugging code that can be useful in diagnosing | ||
77 | driver errors. | ||
78 | |||
79 | config AIC79XX_DEBUG_MASK | ||
80 | int "Debug code enable mask (16383 for all debugging)" | ||
81 | depends on SCSI_AIC79XX | ||
82 | default "0" | ||
83 | help | ||
84 | Bit mask of debug options that is only valid if the | ||
85 | CONFIG_AIC79XX_DEBUG_ENBLE option is enabled. The bits in this mask | ||
86 | are defined in the drivers/scsi/aic7xxx/aic79xx.h - search for the | ||
87 | variable ahd_debug in that file to find them. | ||
88 | |||
89 | config AIC79XX_REG_PRETTY_PRINT | ||
90 | bool "Decode registers during diagnostics" | ||
91 | depends on SCSI_AIC79XX | ||
92 | default y | ||
93 | help | ||
94 | Compile in register value tables for the output of expanded register | ||
95 | contents in diagnostics. This make it much easier to understand debug | ||
96 | output without having to refer to a data book and/or the aic7xxx.reg | ||
97 | file. | ||