From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AA19ECE599 for ; Wed, 16 Oct 2019 21:03:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 46C1B20872 for ; Wed, 16 Oct 2019 21:03:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571259829; bh=vdUAAXtqNJVu95HOa+bjDcfrL3e2S32QDUQ5yMeeZCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wNCAcny6e08UwbnB8CL5BTcHmLvG1Hi6d4FCHOwZtzpovqTHysWAs8aQFK2DCU673 3ZdlC+FBoWhS1eZ6Jlc9C/6scH1K+DCJ0XRgv+d6KwdF+xVyuNSK4CCvpxxNcityw1 PtBY6CXNUZU7VgSJbawAf9KOWqjOlUg68qFaVb1Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437350AbfJPVDs (ORCPT ); Wed, 16 Oct 2019 17:03:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:35568 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726565AbfJPVDr (ORCPT ); Wed, 16 Oct 2019 17:03:47 -0400 Received: from localhost.localdomain (unknown [151.66.3.111]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 16C3C20872; Wed, 16 Oct 2019 21:03:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571259827; bh=vdUAAXtqNJVu95HOa+bjDcfrL3e2S32QDUQ5yMeeZCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ler6LlJZSqb678ONG6oPCJRo/JR+N4YJ3gTC2ACQyrnHFC9kqCVPiu96krowybQXK aqbGey3GCKGogDyMYwlyJBlo6EGMfvFG3EDWvTrtctwDJ4sKRvEzA6sx18skkfUxrE 6vZOfb3O+kUW7taEDnESzstbvjO6Q45FBk3i8Z6I= From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: lorenzo.bianconi@redhat.com, davem@davemloft.net, thomas.petazzoni@bootlin.com, brouer@redhat.com, ilias.apalodimas@linaro.org, matteo.croce@redhat.com, mw@semihalf.com, jakub.kicinski@netronome.com Subject: [PATCH v4 net-next 5/7] net: mvneta: move header prefetch in mvneta_swbm_rx_frame Date: Wed, 16 Oct 2019 23:03:10 +0200 Message-Id: <4e5c4c61623baedb77774ba506fa53dfc856ccac.1571258793.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Move data buffer prefetch in mvneta_swbm_rx_frame after dma_sync_single_range_for_cpu Signed-off-by: Ilias Apalodimas Signed-off-by: Jesper Dangaard Brouer Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/marvell/mvneta.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 3b2c65a7c474..213b8f3eda44 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2024,6 +2024,9 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp, rx_desc->buf_phys_addr, len, dma_dir); + /* Prefetch header */ + prefetch(data); + xdp->data_hard_start = data; xdp->data = data + MVNETA_SKB_HEADROOM + MVNETA_MH_SIZE; xdp->data_end = xdp->data + data_len; @@ -2119,15 +2122,11 @@ static int mvneta_rx_swbm(struct napi_struct *napi, /* Fairness NAPI loop */ while (done < budget && done < rx_pending) { struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq); - unsigned char *data; struct page *page; int index; index = rx_desc - rxq->descs; page = (struct page *)rxq->buf_virt_addr[index]; - data = page_address(page); - /* Prefetch header */ - prefetch(data); rxq->refill_num++; done++; -- 2.21.0