Root/Documentation/scsi/scsi-parameters.txt

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.
140

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