On Tue, 28 Apr 2015, Christoph Hellwig wrote:
This seems to lack support for QUEUE_FLAG_SG_GAPS to work around the retarded PPR format in the NVMe driver.
Might strong words, sir! I'm missing the context here, but I'll say PRP is much more efficient for h/w to process over SGL, and the requirement comes from that h/w rather than the driver. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel