Alan Stern wrote: > On Mon, 6 Feb 2006, Brian King wrote: > >> Alan Stern wrote: >>> Some protocols (like USB UFI) or devices that don't adhere to the SCSI >>> standard may indicate a nonexistent LUN by returning INQUIRY information >>> with Peripheral Device Type set to 0x1f (unknown or none) and Peripheral >>> Qualifier set to 0 instead of 3 as the spec requires. This patch (as650) >>> causes PDT = 0x1f to be recognized as no LUN present regardless of the >>> qualifier value, if the SCSI level is equal to 0. >> This patch will break the ipr driver. The ipr adapter firmware reports a >> logical scsi device which is used for RAID configuration. It reports >> a Peripheral Device Type of 0x1f and a scsi level of 0, since it does >> not claim compliance with any scsi level. > > I was afraid that might happen. Okay, forget the patch. > > How come you didn't mention the ipr driver before when I first raised the > possibility of making this change? Sorry about that... I wanted to verify on my end that the scsi level getting returned was 0 before doing so. Your repost was a reminder... Brian -- Brian King eServer Storage I/O IBM Linux Technology Center - : 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
