On Sat, Jun 10, 2006 at 11:29:12AM -0500, James Bottomley wrote: > On Sat, 2006-06-10 at 17:10 +0100, Christoph Hellwig wrote: > > The driver is not for scsi hardware. Please implement it as block > > driver. > > Actually, I'm afraid it is ... look at the mailbox path ... it's one of > these increasingly prevalent raid HBAs that speaks SCSI at the firmware > level. Most commands are direct passthroughs, only INQUIRY and > MODE_SENSE are actually emulated in the driver. Oops, you're right. It emulates READ/WRITE6 at the top of the queuecommand routine which made me thing it'll emulate more below. So removing the READ/WRITE6 emulation and setting the flag so the midlayer only uses READ/WRITE10+ is on top of the TODO list. Right after that is using the scsi_kmap_atomic_sg/scsi_kunmap_atomic_sg for the remaining emulated commands. More comments later. - : 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
