From nobody Thu Jan 1 09:13:27 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD9CFC00A8F for ; Tue, 24 Oct 2023 14:52:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343736AbjJXOwI (ORCPT ); Tue, 24 Oct 2023 10:52:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343700AbjJXOv4 (ORCPT ); Tue, 24 Oct 2023 10:51:56 -0400 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 596F01700; Tue, 24 Oct 2023 07:51:53 -0700 (PDT) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39OBAkUY025366; Tue, 24 Oct 2023 07:51:39 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=Ndvh1aB9dthejQfO+oYbkTOouX5yYrdETKaSV5RkMPU=; b=UyDzgSc6p0xaVaSCnpvsnz5mOmOovIMsyXUVVGz28+wm0O9IsbIlcEDbvXO8fPNC1dV9 uS/+JCbfQiMbqX8KjsAZAB4uhhd1onn/mzgwnpw7vALauX/sKIbNaCTq/MkHvaW5sfwn 2WtyToSdBNCdqfqR3F4zafXVU+LKTCwHbUUii0fCQed6SXFzsjXPl5koaYmHVY4yAeV4 k3iP6lp8Ar8IcRDmZGneueg7/L4xZ2WkxMfTMFDwMyCjN5rnBsV62M5u2ZBPqJrf4gi9 oFLydCVQtjO5NFzTOq7PdaByGk8ZY50b54x6Nx3w5RmGtTmI9JF1K6FpeOgd2RJ6tClb wA== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3txcsqrucf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 24 Oct 2023 07:51:39 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 24 Oct 2023 07:51:37 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Tue, 24 Oct 2023 07:51:37 -0700 Received: from ubuntu-PowerEdge-T110-II.sclab.marvell.com (unknown [10.106.27.86]) by maili.marvell.com (Postfix) with ESMTP id E71CA3F704B; Tue, 24 Oct 2023 07:51:36 -0700 (PDT) From: Shinas Rasheed To: , CC: , , , , , , , , , , Shinas Rasheed , "Veerasenareddy Burru" , Sathesh Edara , Eric Dumazet Subject: [PATCH net-next v2 2/4] octeon_ep: remove dma sync in trasmit path Date: Tue, 24 Oct 2023 07:51:17 -0700 Message-ID: <20231024145119.2366588-3-srasheed@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231024145119.2366588-1-srasheed@marvell.com> References: <20231024145119.2366588-1-srasheed@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: x2E5YogpK_8XHeYHQOcOWUwZohY8Zp6t X-Proofpoint-GUID: x2E5YogpK_8XHeYHQOcOWUwZohY8Zp6t X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-24_14,2023-10-24_01,2023-05-22_02 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Cleanup dma sync calls for scatter gather mappings, since they are coherent allocations and do not need explicit sync to be called. Signed-off-by: Shinas Rasheed --- V2: - Provided more details in changelog V1: https://lore.kernel.org/all/20231023114449.2362147-2-srasheed@marvell.c= om/ drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/= net/ethernet/marvell/octeon_ep/octep_main.c index 2c86b911a380..1c02304677c9 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -872,9 +872,6 @@ static netdev_tx_t octep_start_xmit(struct sk_buff *skb, if (dma_mapping_error(iq->dev, dma)) goto dma_map_err; =20 - dma_sync_single_for_cpu(iq->dev, tx_buffer->sglist_dma, - OCTEP_SGLIST_SIZE_PER_PKT, - DMA_TO_DEVICE); memset(sglist, 0, OCTEP_SGLIST_SIZE_PER_PKT); sglist[0].len[3] =3D len; sglist[0].dma_ptr[0] =3D dma; @@ -894,10 +891,6 @@ static netdev_tx_t octep_start_xmit(struct sk_buff *sk= b, frag++; si++; } - dma_sync_single_for_device(iq->dev, tx_buffer->sglist_dma, - OCTEP_SGLIST_SIZE_PER_PKT, - DMA_TO_DEVICE); - hw_desc->dptr =3D tx_buffer->sglist_dma; } =20 --=20 2.25.1