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