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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 7715982230e5..482f6de6817d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1751,7 +1751,7 @@ static int process_responses(struct sge_rspq *rspq, int budget)
                  * Figure out what kind of response we've received from the
                  * SGE.
                  */
-                rmb();
+                dma_rmb();
                 rsp_type = RSPD_TYPE(rc->type_gen);
                 if (likely(rsp_type == RSP_TYPE_FLBUF)) {
                         struct page_frag *fp;
@@ -1935,7 +1935,7 @@ static unsigned int process_intrq(struct adapter *adapter)
                  * error and go on to the next response message.  This should
                  * never happen ...
                  */
-                rmb();
+                dma_rmb();
                 if (unlikely(RSPD_TYPE(rc->type_gen) != RSP_TYPE_INTR)) {
                         dev_err(adapter->pdev_dev,
                                 "Unexpected INTRQ response type %d\n",