Stefan Richter wrote: > Delete some incorrect code, left over from the initial driver submission > in March 2001. > > SBP-2 targets should provide sense data via the SBP-2 status block > (autosense). We have to pass the REQUEST_SENSE command through to > targets which don't implement autosense, if there are any.
Umm, REQUEST SENSE has several other useful capabilities. It can convey information about low power conditions, a progress indicator (e.g. during FORMAT with IMMED=1) and informational exception warnings. It is also defined to work any time INQUIRY works (e.g. on lun=0 when there is no lu there but there is a lun>0). smartmontools sets MRIE to 6 in the control mode page so it can periodically poll a disk with REQUEST SENSE to see if it has tripped a threshold . It could use other techniques but they would most likely interfere with normal error processing on the host OS (and linux is one of about 8). So, this patch is a step in the right direction. Hopefully not too many other LLDs are playing games with REQUEST SENSE. Doug Gilbert - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
