[net-next-2.6.git] / Documentation / scsi / scsi-parameters.txt

                          SCSI Kernel Parameters
                          ~~~~~~~~~~~~~~~~~~~~~~

See Documentation/kernel-parameters.txt for general information on
specifying module parameters.

This document may not be entirely up to date and comprehensive. The command
"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
module. Loadable modules, after being loaded into the running kernel, also
reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
parameters may be changed at runtime by the command
"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}".


	advansys=	[HW,SCSI]
			See header of drivers/scsi/advansys.c.

	aha152x=	[HW,SCSI]
			See Documentation/scsi/aha152x.txt.

	aha1542=	[HW,SCSI]
			Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]

	aic7xxx=	[HW,SCSI]
			See Documentation/scsi/aic7xxx.txt.

	aic79xx=	[HW,SCSI]
			See Documentation/scsi/aic79xx.txt.

	atascsi=	[HW,SCSI] Atari SCSI

	BusLogic=	[HW,SCSI]
			See drivers/scsi/BusLogic.c, comment before function
			BusLogic_ParseDriverOptions().

	dtc3181e=	[HW,SCSI]

	eata=		[HW,SCSI]

	fd_mcs=		[HW,SCSI]
			See header of drivers/scsi/fd_mcs.c.

	fdomain=	[HW,SCSI]
			See header of drivers/scsi/fdomain.c.

	gdth=		[HW,SCSI]
			See header of drivers/scsi/gdth.c.

	gvp11=		[HW,SCSI]

	ibmmcascsi=	[HW,MCA,SCSI] IBM MicroChannel SCSI adapter
			See Documentation/mca.txt.

	in2000=		[HW,SCSI]
			See header of drivers/scsi/in2000.c.

	ips=		[HW,SCSI] Adaptec / IBM ServeRAID controller
			See header of drivers/scsi/ips.c.

	mac5380=	[HW,SCSI] Format:
			<can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>

	max_luns=	[SCSI] Maximum number of LUNs to probe.
			Should be between 1 and 2^32-1.

	max_report_luns=
			[SCSI] Maximum number of LUNs received.
			Should be between 1 and 16384.

	NCR_D700=	[HW,SCSI]
			See header of drivers/scsi/NCR_D700.c.

	ncr5380=	[HW,SCSI]

	ncr53c400=	[HW,SCSI]

	ncr53c400a=	[HW,SCSI]

	ncr53c406a=	[HW,SCSI]

	ncr53c8xx=	[HW,SCSI]

	nodisconnect	[HW,SCSI,M68K] Disables SCSI disconnects.

	osst=		[HW,SCSI] SCSI Tape Driver
			Format: <buffer_size>,<write_threshold>
			See also Documentation/scsi/st.txt.

	pas16=		[HW,SCSI]
			See header of drivers/scsi/pas16.c.

	scsi_debug_*=	[SCSI]
			See drivers/scsi/scsi_debug.c.

	scsi_default_dev_flags=
			[SCSI] SCSI default device flags
			Format: <integer>

	scsi_dev_flags=	[SCSI] Black/white list entry for vendor and model
			Format: <vendor>:<model>:<flags>
			(flags are integer value)

	scsi_logging_level=	[SCSI] a bit mask of logging levels
			See drivers/scsi/scsi_logging.h for bits.  Also
			settable via sysctl at dev.scsi.logging_level
			(/proc/sys/dev/scsi/logging_level).
			There is also a nice 'scsi_logging_level' script in the
			S390-tools package, available for download at
			http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html

	scsi_mod.scan=	[SCSI] sync (default) scans SCSI busses as they are
			discovered.  async scans them in kernel threads,
			allowing boot to proceed.  none ignores them, expecting
			user space to do the scan.

	sim710=		[SCSI,HW]
			See header of drivers/scsi/sim710.c.

	st=		[HW,SCSI] SCSI tape parameters (buffers, etc.)
			See Documentation/scsi/st.txt.

	sym53c416=	[HW,SCSI]
			See header of drivers/scsi/sym53c416.c.

	t128=		[HW,SCSI]
			See header of drivers/scsi/t128.c.

	tmscsim=	[HW,SCSI]
			See comment before function dc390_setup() in
			drivers/scsi/tmscsim.c.

	u14-34f=	[HW,SCSI] UltraStor 14F/34F SCSI host adapter
			See header of drivers/scsi/u14-34f.c.

	wd33c93=	[HW,SCSI]
			See header of drivers/scsi/wd33c93.c.

	wd7000=		[HW,SCSI]
			See header of drivers/scsi/wd7000.c.
Commit	Line	Data
163475fb RD	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.