From mboxrd@z Thu Jan 1 00:00:00 1970 From: Or Gerlitz Subject: [PATCH net-next 12/12] net/mlx5e: Prefetch skb data on RX Date: Wed, 17 Jun 2015 18:26:29 +0300 Message-ID: <1434554789-13758-13-git-send-email-ogerlitz@mellanox.com> References: <1434554789-13758-1-git-send-email-ogerlitz@mellanox.com> Cc: netdev@vger.kernel.org, Amir Vadai , Tal Alon , Saeed Mahameed , Or Gerlitz To: "David S. Miller" Return-path: Received: from [193.47.165.129] ([193.47.165.129]:53943 "EHLO mellanox.co.il" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753812AbbFQP06 (ORCPT ); Wed, 17 Jun 2015 11:26:58 -0400 In-Reply-To: <1434554789-13758-1-git-send-email-ogerlitz@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Saeed Mahameed Prefetch the 1st cache line used by the buffer pointed by the skb linear data. Signed-off-by: Saeed Mahameed Signed-off-by: Or Gerlitz --- drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 760b3ef..9a93741 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, -- 2.3.7