diff options
| author |   Alexander Duyck <alexander.h.duyck@redhat.com> | 2015-04-08 18:49:43 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-04-09 14:25:26 -0400 |
| commit | 67317166dd6e8e78f20768e9f07fcc80846b207b (patch) | |
| tree | 498efdb14803d3e440a985c4c4d9df8dc32bc6f5 /drivers/net/ethernet/intel/i40evf/i40e_txrx.c | |
| parent | mlx4/mlx5: Use dma_wmb/rmb where appropriate (diff) | |
| download | linux-dev-67317166dd6e8e78f20768e9f07fcc80846b207b.tar.xz linux-dev-67317166dd6e8e78f20768e9f07fcc80846b207b.zip | |
i40e/i40evf: Use dma_rmb where appropriate
Update i40e and i40evf to use dma_rmb. This should improve performance by
decreasing the barrier overhead on strong ordered architectures.
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index e2ddb30e96f5..b077e02a0cc7 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -1034,7 +1034,7 @@ static int i40e_clean_rx_irq_ps(struct i40e_ring *rx_ring, int budget) * any other fields out of the rx_desc until we know the * DD bit is set. */ - rmb(); + dma_rmb(); rx_bi = &rx_ring->rx_bi[i]; skb = rx_bi->skb; if (likely(!skb)) { @@ -1213,7 +1213,7 @@ static int i40e_clean_rx_irq_1buf(struct i40e_ring *rx_ring, int budget) * any other fields out of the rx_desc until we know the * DD bit is set. */ - rmb(); + dma_rmb(); rx_bi = &rx_ring->rx_bi[i]; skb = rx_bi->skb; |