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gerrit-public.fairphone.software / kernel / msm / 4238a417a91643e1162a98770288f630e37f0484 / . / Documentation / scsi / scsi-parameters.txt
blob: 21e5798526ee9b37046ee5e169e983754272adea [file] [log] [blame]
Randy Dunlap163475f2010-08-14 12:36:14 -0700[diff] [blame]1 SCSI Kernel Parameters
2 ~~~~~~~~~~~~~~~~~~~~~~
3
4See Documentation/kernel-parameters.txt for general information on
5specifying module parameters.
6
7This document may not be entirely up to date and comprehensive. The command
8"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
9module. Loadable modules, after being loaded into the running kernel, also
10reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
11parameters may be changed at runtime by the command
12"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}".
13
14
15 advansys= [HW,SCSI]
16 See header of drivers/scsi/advansys.c.
17
18 aha152x= [HW,SCSI]
19 See Documentation/scsi/aha152x.txt.
20
21 aha1542= [HW,SCSI]
22 Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]
23
24 aic7xxx= [HW,SCSI]
25 See Documentation/scsi/aic7xxx.txt.
26
27 aic79xx= [HW,SCSI]
28 See Documentation/scsi/aic79xx.txt.
29
30 atascsi= [HW,SCSI] Atari SCSI
31
32 BusLogic= [HW,SCSI]
33 See drivers/scsi/BusLogic.c, comment before function
34 BusLogic_ParseDriverOptions().
35
36 dtc3181e= [HW,SCSI]
37
38 eata= [HW,SCSI]
39
40 fd_mcs= [HW,SCSI]
41 See header of drivers/scsi/fd_mcs.c.
42
43 fdomain= [HW,SCSI]
44 See header of drivers/scsi/fdomain.c.
45
46 gdth= [HW,SCSI]
47 See header of drivers/scsi/gdth.c.
48
49 gvp11= [HW,SCSI]
50
51 ibmmcascsi= [HW,MCA,SCSI] IBM MicroChannel SCSI adapter
52 See Documentation/mca.txt.
53
54 in2000= [HW,SCSI]
55 See header of drivers/scsi/in2000.c.
56
57 ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
58 See header of drivers/scsi/ips.c.
59
60 mac5380= [HW,SCSI] Format:
61 <can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
62
63 max_luns= [SCSI] Maximum number of LUNs to probe.
64 Should be between 1 and 2^32-1.
65
66 max_report_luns=
67 [SCSI] Maximum number of LUNs received.
68 Should be between 1 and 16384.
69
70 NCR_D700= [HW,SCSI]
71 See header of drivers/scsi/NCR_D700.c.
72
73 ncr5380= [HW,SCSI]
74
75 ncr53c400= [HW,SCSI]
76
77 ncr53c400a= [HW,SCSI]
78
79 ncr53c406a= [HW,SCSI]
80
81 ncr53c8xx= [HW,SCSI]
82
83 nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
84
85 osst= [HW,SCSI] SCSI Tape Driver
86 Format: <buffer_size>,<write_threshold>
87 See also Documentation/scsi/st.txt.
88
89 pas16= [HW,SCSI]
90 See header of drivers/scsi/pas16.c.
91
92 scsi_debug_*= [SCSI]
93 See drivers/scsi/scsi_debug.c.
94
95 scsi_default_dev_flags=
96 [SCSI] SCSI default device flags
97 Format: <integer>
98
99 scsi_dev_flags= [SCSI] Black/white list entry for vendor and model
100 Format: <vendor>:<model>:<flags>
101 (flags are integer value)
102
103 scsi_logging_level= [SCSI] a bit mask of logging levels
104 See drivers/scsi/scsi_logging.h for bits. Also
105 settable via sysctl at dev.scsi.logging_level
106 (/proc/sys/dev/scsi/logging_level).
107 There is also a nice 'scsi_logging_level' script in the
108 S390-tools package, available for download at
109 http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
110
111 scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
112 discovered. async scans them in kernel threads,
113 allowing boot to proceed. none ignores them, expecting
114 user space to do the scan.
115
116 sim710= [SCSI,HW]
117 See header of drivers/scsi/sim710.c.
118
119 st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
120 See Documentation/scsi/st.txt.
121
122 sym53c416= [HW,SCSI]
123 See header of drivers/scsi/sym53c416.c.
124
125 t128= [HW,SCSI]
126 See header of drivers/scsi/t128.c.
127
128 tmscsim= [HW,SCSI]
129 See comment before function dc390_setup() in
130 drivers/scsi/tmscsim.c.
131
132 u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
133 See header of drivers/scsi/u14-34f.c.
134
135 wd33c93= [HW,SCSI]
136 See header of drivers/scsi/wd33c93.c.
137
138 wd7000= [HW,SCSI]
139 See header of drivers/scsi/wd7000.c.