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authorSaeed Mahameed2015-06-23 17:14:22 +0300
committerDavid S. Miller2015-06-24 00:42:41 -0700
commit99611ba127cfa13ddaed51f9d3cd1765a8214dd4 (patch)
tree3e1720bf504ad6dcca7d4b1166ed4bce2e76c6d1
parenta1f5a1a87ac11486b95eebba7fa0127dd7090f65 (diff)
net/mlx5e: Prefetch skb data on RX
Prefetch the 1st cache line used by the buffer pointed by the skb linear data. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_rx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 760b3ef64f17..9a9374131f5b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -215,6 +215,7 @@ bool mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget)
wqe_counter = be16_to_cpu(wqe_counter_be);
wqe = mlx5_wq_ll_get_wqe(&rq->wq, wqe_counter);
skb = rq->skb[wqe_counter];
+ prefetch(skb->data);
rq->skb[wqe_counter] = NULL;
dma_unmap_single(rq->pdev,