On Sun, Nov 13, 2016 at 10:44:47AM +0100, Hannes Reinecke wrote: > One day to mark with bright red in the calendar. > > Christoph Hellwig is telling me _NOT_ to use scsi-mq. That's not what I'm doing. > This patch was done so see what would needed to be done to convert a legacy > driver. > As I was under the impression that scsi-mq is the way forward, seeing that > it should be enabled per default. > But I must have been mistaken. Apparently. What I am doing is to tell you you should not expose multiple queues unless the hardware actually has multiple submissions queues. The blk-mq and scsi-mq code works just fine with a single submission queue, and the hpsa driver in particular works really well with scsi-mq and a single submission queue. E.g. the RAID HBA on slide 19 of this presentations is an hpsa one: http://events.linuxfoundation.org/sites/events/files/slides/scsi.pdf -- To unsubscribe from this list: 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
