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 | |
| parent | 12b3375f3963536ba3ad47d2db49f72067b4905e (diff) | |
| download | linux-67317166dd6e8e78f20768e9f07fcc80846b207b.tar.bz2 | |
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 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index d8989f9d1798..4bd3a80aba82 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1554,7 +1554,7 @@ 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(); if (i40e_rx_is_programming_status(qword)) { i40e_clean_programming_status(rx_ring, rx_desc); I40E_RX_INCREMENT(rx_ring, i); @@ -1745,7 +1745,7 @@ 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(); if (i40e_rx_is_programming_status(qword)) { i40e_clean_programming_status(rx_ring, rx_desc); 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; |