From patchwork Tue Jun 23 14:14:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Or Gerlitz X-Patchwork-Id: 487650 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 7E33A1401AD for ; Wed, 24 Jun 2015 00:15:19 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933608AbbFWOPN (ORCPT ); Tue, 23 Jun 2015 10:15:13 -0400 Received: from [193.47.165.129] ([193.47.165.129]:41216 "EHLO mellanox.co.il" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S934072AbbFWOPD (ORCPT ); Tue, 23 Jun 2015 10:15:03 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from ogerlitz@mellanox.com) with ESMTPS (AES256-SHA encrypted); 23 Jun 2015 17:14:06 +0300 Received: from r-vnc04.mtr.labs.mlnx (r-vnc04.mtr.labs.mlnx [10.208.0.116]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id t5NEEOWd023889; Tue, 23 Jun 2015 17:14:25 +0300 From: Or Gerlitz To: "David S. Miller" Cc: netdev@vger.kernel.org, Amir Vadai , Tal Alon , Achiad Shochat , Saeed Mahameed , Or Gerlitz Subject: [PATCH net-next V1 11/11] net/mlx5e: Prefetch skb data on RX Date: Tue, 23 Jun 2015 17:14:22 +0300 Message-Id: <1435068862-26488-12-git-send-email-ogerlitz@mellanox.com> X-Mailer: git-send-email 1.7.8.2 In-Reply-To: <1435068862-26488-1-git-send-email-ogerlitz@mellanox.com> References: <1435068862-26488-1-git-send-email-ogerlitz@mellanox.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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,