On 4/21/21 11:37 PM, Hannes Reinecke wrote: > On 4/21/21 11:11 PM, Bart Van Assche wrote: >> Do all SCSI devices from the nineties report SCSI status values with >> the lower bit set to 0? If so, can the status_byte() macro be removed >> entirely? >> > As indicated in the previous reply, yes, that is the plan (removing the > status_byte() macro). And the drivers will have to report SCSI status > values with the lower bit cleared, otherwise the linux SCSI status codes > would never have worked in the first place. Please elaborate the above further. My understanding is that SCSI-2 defines bits 0, 6 and 7 of the status byte as reserved while SAM-2 specifies that these bits must be zero for the status codes that also have been defined in SCSI-2. Is it safe to assume that all SCSI-2 devices set the reserved bits to zero? Thanks, Bart.
