Messages in this thread | | | Date | Mon, 29 Jul 2013 07:50:11 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH RESEND 0/1] AHCI: Optimize interrupt processing |
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Yo,
On Fri, Jul 26, 2013 at 05:43:13PM -0700, Nicholas A. Bellinger wrote: > Considering there can be more than a single ata_device hanging off each > ata_port, the '*sdev = ap->link.device[0].sdev' in __ata_qc_from_tag() > is definitely bogus, but I'm not sure how else to correlate > blk-mq/scsi-mq per device descriptors to existing code expecting > ata_port->qcmd[] descriptors to be shared across multiple devices.. > > Tejun..?
I have no idea. Let's please just do simpler conversion and worry about embedding qc's into scsi_cmnds later. libata isn't a normal SCSI driver and has a rather its own thick midlayer doing the impedance matching inbetween && I really don't think there is too much benefit to be reaped from embedding qc's into scsi_cmnds.
Thanks.
-- tejun
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