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Eli Cohen authored
Make sure to put dma write memory barrier after updating CQ consumer index so the hardware knows that there are available CQE slots in the queue. Failure to do this can cause the update of the RX doorbell record to get updated before the CQ consumer index resulting in CQ overrun. Fixes: 1a86b377 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices") Signed-off-by:
Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20201209140004.15892-1-elic@nvidia.com Signed-off-by:
Michael S. Tsirkin <mst@redhat.com>
83ef73b2
