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net/mlx5e: Prefetch skb data on RX

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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>
This commit is contained in:
Saeed Mahameed 2015-06-23 17:14:22 +03:00 committed by David S. Miller
parent a1f5a1a87a
commit 99611ba127
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
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@ -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,