[PATCH v3] nvme: add quirk to force medium priority for SQ creation

Keith Busch keith.busch at linux.intel.com
Tue May 8 09:35:39 PDT 2018


On Tue, May 08, 2018 at 10:25:15AM -0600, Jens Axboe wrote:
> Some P3100 drives have a bug where they think WRRU (weighted round
> robin) is always enabled, even though the host doesn't set it. Since
> they think it's enabled, they also look at the submission queue
> creation priority. We used to set that to MEDIUM by default,
> but that was removed in commit 81c1cd98351b. This causes various
> issues on that drive. Add a quick to still set MEDIUM priority
> for that controller.
> 
> Fixes: 81c1cd98351b ("nvme/pci: Don't set reserved SQ create flags")
> Cc: stable at vger.kernel.org
> Signed-off-by: Jens Axboe <axboe at kernel.dk>

Thanks, applied to nvme-4.18.



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