dmaengine: idxd: assign MSIX vectors to each WQ rather than roundrobin

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IOPS increased when changing MSIX vector to per WQ from roundrobin.
Allows descriptor to be completed by the submitter improves caching
locality.

Suggested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Link: https://lore.kernel.org/r/162456717326.1130457.15258077196523268356.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Dave Jiang 2021-06-24 13:39:33 -07:00 • committed by Vinod Koul

parent ac24a2dc06

commit 6cfd9e62e3

2 changed files with 8 additions and 30 deletions

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2

drivers/dma/idxd/idxd.h

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36

drivers/dma/idxd/submit.c

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