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