Bill, command_retry_count is not part of upstream driver. command_retry_count experimental support of mpt2sas driver. What exactly is your need ? Normally retries should happened out of LLD(mpt2sas). It must be handled at scsi midlayer. So you have to trust midlayer instead of LLD. --Kashyap > -----Original Message----- > From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi- > owner@xxxxxxxxxxxxxxx] On Behalf Of Bill.Hooper@xxxxxxxxxx > Sent: Wednesday, March 03, 2010 5:58 AM > To: linux-scsi@xxxxxxxxxxxxxxx; Bill.Hooper@xxxxxxxxxx > Subject: Controlling mpt2sas busy retries > > I would like to control the number of times the mpt2sas driver retries > a command on BUSY (I want to reduce the retry to zero or one). I found > a document that explains I could use command_retry_count parameter when > loading the driver, but the parameter does not exist for my driver. Any > help would be appreciated. > > Bill Hooper > Principal Software Engineer > Emulex > > root@spice (<-;)~ # uname -a > Linux spice 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC > 2010 i686 GNU/Linux > > root@spice (<-;)~ # modinfo mpt2sas > filename: /lib/modules/2.6.31-19- > generic/kernel/drivers/scsi/mpt2sas/mpt2sas.ko > version: 01.100.04.00 > license: GPL > description: LSI MPT Fusion SAS 2.0 Device Driver > author: LSI Corporation <DL-MPTFusionLinux@xxxxxxx> > srcversion: 65EA54D38B5A4AB0E385215 > alias: pci:v00001000d00000065sv*sd*bc*sc*i* > alias: pci:v00001000d00000064sv*sd*bc*sc*i* > alias: pci:v00001000d00000077sv*sd*bc*sc*i* > alias: pci:v00001000d00000076sv*sd*bc*sc*i* > alias: pci:v00001000d00000074sv*sd*bc*sc*i* > alias: pci:v00001000d00000072sv*sd*bc*sc*i* > alias: pci:v00001000d00000070sv*sd*bc*sc*i* > depends: scsi_transport_sas > vermagic: 2.6.31-19-generic SMP mod_unload modversions 586 > parm: logging_level: bits for enabling additional logging > info (default=0) > parm: max_lun: max lun, default=16895 (int) > parm: max_queue_depth: max controller queue depth (int) > parm: max_sgl_entries: max sg entries (int) > parm: msix_disable: disable msix routed interrupts > (default=0) (int) > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" > in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
