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1 | .. SPDX-License-Identifier: GPL-2.0 |
2 | ||
3 | ====================== | |
4 | SCSI Kernel Parameters | |
5 | ====================== | |
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8c27ceff | 7 | See Documentation/admin-guide/kernel-parameters.rst for general information on |
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8 | specifying module parameters. |
9 | ||
10 | This document may not be entirely up to date and comprehensive. The command | |
a0b1643b | 11 | ``modinfo -p ${modulename}`` shows a current list of all parameters of a loadable |
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12 | module. Loadable modules, after being loaded into the running kernel, also |
13 | reveal their parameters in /sys/module/${modulename}/parameters/. Some of these | |
14 | parameters may be changed at runtime by the command | |
a0b1643b | 15 | ``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``. |
163475fb | 16 | |
a0b1643b | 17 | :: |
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18 | |
19 | advansys= [HW,SCSI] | |
20 | See header of drivers/scsi/advansys.c. | |
21 | ||
22 | aha152x= [HW,SCSI] | |
94b5530f | 23 | See Documentation/scsi/aha152x.rst. |
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24 | |
25 | aha1542= [HW,SCSI] | |
26 | Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]] | |
27 | ||
28 | aic7xxx= [HW,SCSI] | |
cff7c4a5 | 29 | See Documentation/scsi/aic7xxx.rst. |
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30 | |
31 | aic79xx= [HW,SCSI] | |
520a44d4 | 32 | See Documentation/scsi/aic79xx.rst. |
163475fb | 33 | |
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34 | atascsi= [HW,SCSI] |
35 | See drivers/scsi/atari_scsi.c. | |
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36 | |
37 | BusLogic= [HW,SCSI] | |
38 | See drivers/scsi/BusLogic.c, comment before function | |
39 | BusLogic_ParseDriverOptions(). | |
40 | ||
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41 | gvp11= [HW,SCSI] |
42 | ||
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43 | ips= [HW,SCSI] Adaptec / IBM ServeRAID controller |
44 | See header of drivers/scsi/ips.c. | |
45 | ||
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46 | mac5380= [HW,SCSI] |
47 | See drivers/scsi/mac_scsi.c. | |
163475fb | 48 | |
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49 | scsi_mod.max_luns= |
50 | [SCSI] Maximum number of LUNs to probe. | |
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51 | Should be between 1 and 2^32-1. |
52 | ||
86432652 | 53 | scsi_mod.max_report_luns= |
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54 | [SCSI] Maximum number of LUNs received. |
55 | Should be between 1 and 16384. | |
56 | ||
57 | NCR_D700= [HW,SCSI] | |
58 | See header of drivers/scsi/NCR_D700.c. | |
59 | ||
60 | ncr5380= [HW,SCSI] | |
3c1e681b | 61 | See Documentation/scsi/g_NCR5380.rst. |
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62 | |
63 | ncr53c400= [HW,SCSI] | |
3c1e681b | 64 | See Documentation/scsi/g_NCR5380.rst. |
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65 | |
66 | ncr53c400a= [HW,SCSI] | |
3c1e681b | 67 | See Documentation/scsi/g_NCR5380.rst. |
163475fb | 68 | |
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69 | ncr53c8xx= [HW,SCSI] |
70 | ||
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71 | osst= [HW,SCSI] SCSI Tape Driver |
72 | Format: <buffer_size>,<write_threshold> | |
bf65c846 | 73 | See also Documentation/scsi/st.rst. |
163475fb | 74 | |
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75 | scsi_debug_*= [SCSI] |
76 | See drivers/scsi/scsi_debug.c. | |
77 | ||
86432652 | 78 | scsi_mod.default_dev_flags= |
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79 | [SCSI] SCSI default device flags |
80 | Format: <integer> | |
81 | ||
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82 | scsi_mod.dev_flags= |
83 | [SCSI] Black/white list entry for vendor and model | |
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84 | Format: <vendor>:<model>:<flags> |
85 | (flags are integer value) | |
86 | ||
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87 | scsi_mod.scsi_logging_level= |
88 | [SCSI] a bit mask of logging levels | |
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89 | See drivers/scsi/scsi_logging.h for bits. Also |
90 | settable via sysctl at dev.scsi.logging_level | |
91 | (/proc/sys/dev/scsi/logging_level). | |
92 | There is also a nice 'scsi_logging_level' script in the | |
93 | S390-tools package, available for download at | |
2e0d3bd8 | 94 | https://github.com/ibm-s390-linux/s390-tools/blob/master/scripts/scsi_logging_level |
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95 | |
96 | scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are | |
97 | discovered. async scans them in kernel threads, | |
98 | allowing boot to proceed. none ignores them, expecting | |
99 | user space to do the scan. | |
100 | ||
101 | sim710= [SCSI,HW] | |
102 | See header of drivers/scsi/sim710.c. | |
103 | ||
104 | st= [HW,SCSI] SCSI tape parameters (buffers, etc.) | |
bf65c846 | 105 | See Documentation/scsi/st.rst. |
163475fb | 106 | |
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107 | wd33c93= [HW,SCSI] |
108 | See header of drivers/scsi/wd33c93.c. |