scheduler: cpuacct: Enable platform hooks to track cpuusage for CPU frequencies
[linux-2.6.git] / Documentation / scsi / scsi-parameters.txt
1                           SCSI Kernel Parameters
2                           ~~~~~~~~~~~~~~~~~~~~~~
3
4 See Documentation/kernel-parameters.txt for general information on
5 specifying module parameters.
6
7 This document may not be entirely up to date and comprehensive. The command
8 "modinfo -p ${modulename}" shows a current list of all parameters of a loadable
9 module. Loadable modules, after being loaded into the running kernel, also
10 reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
11 parameters 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.