projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | |
| a2ae85df | 8 | select SCSI_SPI_ATTRS |
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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 | |
| 09509603 | 25 | and display a console message indicating this value. |
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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, | |
| 09509603 | 30 | the default is set to 32. Higher values may result in higher performance |
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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 | |
| efe2e878 | 34 | "tag_info" option. See Documentation/scsi/aic79xx.txt for details. |
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35 | |
| 36 | config AIC79XX_RESET_DELAY_MS | |
| 37 | int "Initial bus reset delay in milli-seconds" | |
| 38 | depends on SCSI_AIC79XX | |
| eb221849 | 39 | default "5000" |
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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 | ||
| eb221849 | 45 | Default: 5000 (5 seconds) |
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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 | ||
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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. |