[linux-2.6-block.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]
			See drivers/scsi/atari_scsi.c.

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

	dtc3181e=	[HW,SCSI]
			See Documentation/scsi/g_NCR5380.txt.

	eata=		[HW,SCSI]

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

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

	gvp11=		[HW,SCSI]

	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]
			See drivers/scsi/mac_scsi.c.

	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]
			See Documentation/scsi/g_NCR5380.txt.

	ncr53c400=	[HW,SCSI]
			See Documentation/scsi/g_NCR5380.txt.

	ncr53c400a=	[HW,SCSI]
			See Documentation/scsi/g_NCR5380.txt.

	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
9c41ab27 FT	30	atascsi= [HW,SCSI]
9c41ab27 FT	31	See drivers/scsi/atari_scsi.c.
163475fb RD	32
	33	BusLogic= [HW,SCSI]
	34	See drivers/scsi/BusLogic.c, comment before function
	35	BusLogic_ParseDriverOptions().
	36
	37	dtc3181e= [HW,SCSI]
9c41ab27	38	See Documentation/scsi/g_NCR5380.txt.
163475fb RD	39
	40	eata= [HW,SCSI]
	41
163475fb RD	42	fdomain= [HW,SCSI]
	43	See header of drivers/scsi/fdomain.c.
	44
	45	gdth= [HW,SCSI]
	46	See header of drivers/scsi/gdth.c.
	47
	48	gvp11= [HW,SCSI]
	49
163475fb RD	50	in2000= [HW,SCSI]
	51	See header of drivers/scsi/in2000.c.
	52
	53	ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
	54	See header of drivers/scsi/ips.c.
	55
9c41ab27 FT	56	mac5380= [HW,SCSI]
9c41ab27 FT	57	See drivers/scsi/mac_scsi.c.
163475fb RD	58
	59	max_luns= [SCSI] Maximum number of LUNs to probe.
	60	Should be between 1 and 2^32-1.
	61
	62	max_report_luns=
	63	[SCSI] Maximum number of LUNs received.
	64	Should be between 1 and 16384.
	65
	66	NCR_D700= [HW,SCSI]
	67	See header of drivers/scsi/NCR_D700.c.
	68
	69	ncr5380= [HW,SCSI]
9c41ab27	70	See Documentation/scsi/g_NCR5380.txt.
163475fb RD	71
163475fb RD	72	ncr53c400= [HW,SCSI]
9c41ab27	73	See Documentation/scsi/g_NCR5380.txt.
163475fb RD	74
163475fb RD	75	ncr53c400a= [HW,SCSI]
9c41ab27	76	See Documentation/scsi/g_NCR5380.txt.
163475fb RD	77
	78	ncr53c406a= [HW,SCSI]
	79
	80	ncr53c8xx= [HW,SCSI]
	81
	82	nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
	83
	84	osst= [HW,SCSI] SCSI Tape Driver
	85	Format: <buffer_size>,<write_threshold>
	86	See also Documentation/scsi/st.txt.
	87
	88	pas16= [HW,SCSI]
	89	See header of drivers/scsi/pas16.c.
	90
	91	scsi_debug_*= [SCSI]
	92	See drivers/scsi/scsi_debug.c.
	93
	94	scsi_default_dev_flags=
	95	[SCSI] SCSI default device flags
	96	Format: <integer>
	97
	98	scsi_dev_flags= [SCSI] Black/white list entry for vendor and model
	99	Format: <vendor>:<model>:<flags>
	100	(flags are integer value)
	101
	102	scsi_logging_level= [SCSI] a bit mask of logging levels
	103	See drivers/scsi/scsi_logging.h for bits. Also
	104	settable via sysctl at dev.scsi.logging_level
	105	(/proc/sys/dev/scsi/logging_level).
	106	There is also a nice 'scsi_logging_level' script in the
	107	S390-tools package, available for download at
	108	http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
	109
	110	scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
	111	discovered. async scans them in kernel threads,
	112	allowing boot to proceed. none ignores them, expecting
	113	user space to do the scan.
	114
	115	sim710= [SCSI,HW]
	116	See header of drivers/scsi/sim710.c.
	117
	118	st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
	119	See Documentation/scsi/st.txt.
	120
	121	sym53c416= [HW,SCSI]
	122	See header of drivers/scsi/sym53c416.c.
	123
	124	t128= [HW,SCSI]
	125	See header of drivers/scsi/t128.c.
	126
	127	tmscsim= [HW,SCSI]
	128	See comment before function dc390_setup() in
	129	drivers/scsi/tmscsim.c.
	130
	131	u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
	132	See header of drivers/scsi/u14-34f.c.
	133
	134	wd33c93= [HW,SCSI]
	135	See header of drivers/scsi/wd33c93.c.
	136
	137	wd7000= [HW,SCSI]
	138	See header of drivers/scsi/wd7000.c.