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	fdomain=	[HW,SCSI]
41			See header of drivers/scsi/fdomain.c.
42
43	gdth=		[HW,SCSI]
44			See header of drivers/scsi/gdth.c.
45
46	gvp11=		[HW,SCSI]
47
48	in2000=		[HW,SCSI]
49			See header of drivers/scsi/in2000.c.
50
51	ips=		[HW,SCSI] Adaptec / IBM ServeRAID controller
52			See header of drivers/scsi/ips.c.
53
54	mac5380=	[HW,SCSI] Format:
55			<can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
56
57	max_luns=	[SCSI] Maximum number of LUNs to probe.
58			Should be between 1 and 2^32-1.
59
60	max_report_luns=
61			[SCSI] Maximum number of LUNs received.
62			Should be between 1 and 16384.
63
64	NCR_D700=	[HW,SCSI]
65			See header of drivers/scsi/NCR_D700.c.
66
67	ncr5380=	[HW,SCSI]
68
69	ncr53c400=	[HW,SCSI]
70
71	ncr53c400a=	[HW,SCSI]
72
73	ncr53c406a=	[HW,SCSI]
74
75	ncr53c8xx=	[HW,SCSI]
76
77	nodisconnect	[HW,SCSI,M68K] Disables SCSI disconnects.
78
79	osst=		[HW,SCSI] SCSI Tape Driver
80			Format: <buffer_size>,<write_threshold>
81			See also Documentation/scsi/st.txt.
82
83	pas16=		[HW,SCSI]
84			See header of drivers/scsi/pas16.c.
85
86	scsi_debug_*=	[SCSI]
87			See drivers/scsi/scsi_debug.c.
88
89	scsi_default_dev_flags=
90			[SCSI] SCSI default device flags
91			Format: <integer>
92
93	scsi_dev_flags=	[SCSI] Black/white list entry for vendor and model
94			Format: <vendor>:<model>:<flags>
95			(flags are integer value)
96
97	scsi_logging_level=	[SCSI] a bit mask of logging levels
98			See drivers/scsi/scsi_logging.h for bits.  Also
99			settable via sysctl at dev.scsi.logging_level
100			(/proc/sys/dev/scsi/logging_level).
101			There is also a nice 'scsi_logging_level' script in the
102			S390-tools package, available for download at
103			http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
104
105	scsi_mod.scan=	[SCSI] sync (default) scans SCSI busses as they are
106			discovered.  async scans them in kernel threads,
107			allowing boot to proceed.  none ignores them, expecting
108			user space to do the scan.
109
110	sim710=		[SCSI,HW]
111			See header of drivers/scsi/sim710.c.
112
113	st=		[HW,SCSI] SCSI tape parameters (buffers, etc.)
114			See Documentation/scsi/st.txt.
115
116	sym53c416=	[HW,SCSI]
117			See header of drivers/scsi/sym53c416.c.
118
119	t128=		[HW,SCSI]
120			See header of drivers/scsi/t128.c.
121
122	tmscsim=	[HW,SCSI]
123			See comment before function dc390_setup() in
124			drivers/scsi/tmscsim.c.
125
126	u14-34f=	[HW,SCSI] UltraStor 14F/34F SCSI host adapter
127			See header of drivers/scsi/u14-34f.c.
128
129	wd33c93=	[HW,SCSI]
130			See header of drivers/scsi/wd33c93.c.
131
132	wd7000=		[HW,SCSI]
133			See header of drivers/scsi/wd7000.c.
134