cxgb3/4/4vf: Update drivers to use dma_rmb/wmb where appropriate
Update the Chelsio Ethernet drivers to use the dma_rmb/wmb calls instead of the full barriers in order to improve performance. Cc: Santosh Raspatur <santosh@chelsio.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Casey Leedom <leedom@chelsio.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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