On 1/25/21 1:26 PM, Douglas Gilbert wrote: > Adds hipri option to the Linux sg driver engine. This turns on the > SGV4_FLAG_HIPRI flag in recent sg drivers (January 2021) on READ > and WRITE commands (and not on UNMAP (trim), VERIFY, etc). Uses > blk_poll() and the mq_poll() callback in SCSI LLDs. The mechanism > is also called "iopoll". > > The Linux sg engine in fio uses the struct sg_io_hdr based interface > known as the sg driver "v3" interface. > Linux sg drivers in the kernel prior to January 2021 (sg version > 4.0.12) will just ignore the SGV4_FLAG_HIPRI flag and do normal > completions where LLDs indicate command completion with a (software) > interrupt or similar mechanism. > > Update fio.1 (manpage) with new hipri sg engine option. Applied - but you forgot the HOWTO that I mentioned, I added that one. -- Jens Axboe
