On Tue, Mar 22, 2022 at 06:39:37PM +0800, John Garry wrote: > When SCSI HBA device drivers are required to process an ATA internal > command they still need a tag for the IO. This often requires the driver > to set aside a set of tags for these sorts of IOs and manage the tags > themselves. > > If we associate a SCSI command (and request) with an ATA internal command > then the tag is already provided, so introduce the change to send ATA > internal commands through the block layer with a set of custom blk-mq ops. > > note: I think that the timeout handling needs to be fixed up. Any reason to not just send them through an ATA_16 passthrough CDB and just use all the normal SCSI command handling?
