On Wed, Sep 01, 2021 at 12:52:20PM +0800, Kate Hsuan wrote: > Many users are reporting that the Samsung 860 and 870 SSD are having > various issues when combined with AMD SATA controllers and only > completely disabling NCQ helps to avoid these issues. > > Always disabling NCQ for Samsung 860/870 SSDs regardless of the host > SATA adapter vendor will cause I/O performance degradation with well > behaved adapters. To limit the performance impact to AMD adapters, > introduce the ATA_HORKAGE_NO_NCQ_ON_AMD flag to force disable NCQ > only for these adapters. > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201693 > Signed-off-by: Kate Hsuan <hpa@xxxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>
