.. SPDX-License-Identifier: GPL-2.0
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======================
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SCSI Kernel Parameters
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======================
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See Documentation/admin-guide/kernel-parameters.rst for general information on
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specifying module parameters.
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This document may not be entirely up to date and comprehensive. The command
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``modinfo -p ${modulename}`` shows a current list of all parameters of a loadable
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module. Loadable modules, after being loaded into the running kernel, also
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reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
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parameters may be changed at runtime by the command
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``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``.
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::
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advansys= [HW,SCSI]
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See header of drivers/scsi/advansys.c.
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aha152x= [HW,SCSI]
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See Documentation/scsi/aha152x.rst.
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aha1542= [HW,SCSI]
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Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]
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aic7xxx= [HW,SCSI]
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See Documentation/scsi/aic7xxx.rst.
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aic79xx= [HW,SCSI]
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See Documentation/scsi/aic79xx.rst.
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atascsi= [HW,SCSI]
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See drivers/scsi/atari_scsi.c.
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BusLogic= [HW,SCSI]
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See drivers/scsi/BusLogic.c, comment before function
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BusLogic_ParseDriverOptions().
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gdth= [HW,SCSI]
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See header of drivers/scsi/gdth.c.
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gvp11= [HW,SCSI]
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ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
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See header of drivers/scsi/ips.c.
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mac5380= [HW,SCSI]
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See drivers/scsi/mac_scsi.c.
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scsi_mod.max_luns=
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[SCSI] Maximum number of LUNs to probe.
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Should be between 1 and 2^32-1.
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scsi_mod.max_report_luns=
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[SCSI] Maximum number of LUNs received.
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Should be between 1 and 16384.
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NCR_D700= [HW,SCSI]
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See header of drivers/scsi/NCR_D700.c.
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ncr5380= [HW,SCSI]
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See Documentation/scsi/g_NCR5380.rst.
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ncr53c400= [HW,SCSI]
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See Documentation/scsi/g_NCR5380.rst.
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ncr53c400a= [HW,SCSI]
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See Documentation/scsi/g_NCR5380.rst.
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ncr53c8xx= [HW,SCSI]
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osst= [HW,SCSI] SCSI Tape Driver
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Format: <buffer_size>,<write_threshold>
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See also Documentation/scsi/st.rst.
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scsi_debug_*= [SCSI]
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See drivers/scsi/scsi_debug.c.
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scsi_mod.default_dev_flags=
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[SCSI] SCSI default device flags
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Format: <integer>
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scsi_mod.dev_flags=
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[SCSI] Black/white list entry for vendor and model
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Format: <vendor>:<model>:<flags>
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(flags are integer value)
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scsi_mod.scsi_logging_level=
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[SCSI] a bit mask of logging levels
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See drivers/scsi/scsi_logging.h for bits. Also
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settable via sysctl at dev.scsi.logging_level
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(/proc/sys/dev/scsi/logging_level).
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There is also a nice 'scsi_logging_level' script in the
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S390-tools package, available for download at
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https://github.com/ibm-s390-tools/s390-tools/blob/master/scripts/scsi_logging_level
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scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
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discovered. async scans them in kernel threads,
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allowing boot to proceed. none ignores them, expecting
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user space to do the scan.
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sim710= [SCSI,HW]
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See header of drivers/scsi/sim710.c.
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st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
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See Documentation/scsi/st.rst.
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wd33c93= [HW,SCSI]
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See header of drivers/scsi/wd33c93.c.
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