From patchwork Thu Dec 1 17:03:04 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 701598 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 3tV3XW5DLWz9vFb for ; Fri, 2 Dec 2016 04:03:55 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933777AbcLARDY (ORCPT ); Thu, 1 Dec 2016 12:03:24 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:36384 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755240AbcLARDV (ORCPT ); Thu, 1 Dec 2016 12:03:21 -0500 Received: by mail.free-electrons.com (Postfix, from userid 110) id 98C6321D09; Thu, 1 Dec 2016 18:03:18 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost (83.146.29.93.rev.sfr.net [93.29.146.83]) by mail.free-electrons.com (Postfix) with ESMTPSA id 7222021D05; Thu, 1 Dec 2016 18:03:18 +0100 (CET) From: Gregory CLEMENT To: "David S. Miller" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Jisheng Zhang , Arnd Bergmann , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Gregory CLEMENT , Thomas Petazzoni , linux-arm-kernel@lists.infradead.org, Nadav Haklai , Marcin Wojtas , Dmitri Epshtein , Yelena Krivosheev Subject: [PATCH v6 net-next 1/7] net: mvneta: Optimize rx path for small frame Date: Thu, 1 Dec 2016 18:03:04 +0100 Message-Id: X-Mailer: git-send-email 2.10.2 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org For small frame reuse the phys_addr variable instead of accessing the uncacheable value in the rx descriptor. Signed-off-by: Gregory CLEMENT Tested-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 87274d4ab102..1b84f746d748 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1918,7 +1918,7 @@ static int mvneta_rx_swbm(struct mvneta_port *pp, int rx_todo, goto err_drop_frame; dma_sync_single_range_for_cpu(dev->dev.parent, - rx_desc->buf_phys_addr, + phys_addr, MVNETA_MH_SIZE + NET_SKB_PAD, rx_bytes, DMA_FROM_DEVICE);