From nobody Wed Dec 17 09:46:24 2025 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 6D76EC25B67 for ; Fri, 27 Oct 2023 12:17:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345810AbjJ0MRG (ORCPT ); Fri, 27 Oct 2023 08:17:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345804AbjJ0MRF (ORCPT ); Fri, 27 Oct 2023 08:17:05 -0400 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9A3E129; Fri, 27 Oct 2023 05:17:02 -0700 (PDT) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39R5TnCT012403; Fri, 27 Oct 2023 05:16:55 -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=NgILK9wtLyMUAwzUUpKcc8XDHZhA7pOaSTnLVOywbdQ=; b=j+y6QEijy0fZMfGbAOS4xBaehRxdN8Ze6q+Ts8jT+fxvSFTezgdCg7gHqlRV/FSnxZXl 4aL3cZpb+LiTKnb9PdvSwPXTubnmaSatKKhRka+UT+YME7g18qES6qW/B8i8KTVZUXaX sFz5JUqS8sYKerEjQEMh2WsMU7YiGh6a3gbjDFpMcDdRavHX1EpFnzmrZeIdpRqckneM odY5GzbsJNc/hu3T56igKotHe3OWFTSQnurScM7UdOYT6lYUX/HNJXpBMoe9lOfdSWK+ df4jNVajIyjxFteVuOAToI1uB3usBaVweG4xt2piqnBz7msLuU0zB0I45zCM8Qi6dE5o BQ== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3tywr83b2x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 27 Oct 2023 05:16:55 -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; Fri, 27 Oct 2023 05:16:54 -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; Fri, 27 Oct 2023 05:16:54 -0700 Received: from ubuntu-PowerEdge-T110-II.sclab.marvell.com (unknown [10.106.27.86]) by maili.marvell.com (Postfix) with ESMTP id D8F7D3F7050; Fri, 27 Oct 2023 05:16:53 -0700 (PDT) From: Shinas Rasheed To: , CC: , , , , , , , , , , Shinas Rasheed , "Veerasenareddy Burru" , Sathesh Edara , Eric Dumazet Subject: [PATCH net-next v3 1/4] octeon_ep: add padding for small packets Date: Fri, 27 Oct 2023 05:16:36 -0700 Message-ID: <20231027121639.2382565-2-srasheed@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231027121639.2382565-1-srasheed@marvell.com> References: <20231027121639.2382565-1-srasheed@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: 3qNwm5EDD6Rh59n-SfkWgtZXvZghafBr X-Proofpoint-ORIG-GUID: 3qNwm5EDD6Rh59n-SfkWgtZXvZghafBr X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-27_10,2023-10-27_01,2023-05-22_02 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Pad small packets to ETH_ZLEN before transmit, as hardware cannot pad and requires software padding to ensure minimum ethernet frame length. Signed-off-by: Shinas Rasheed --- V3: - Updated changelog to provide more info. V2: https://lore.kernel.org/all/20231024145119.2366588-2-srasheed@marvell.c= om/ - Introduced the patch drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/= net/ethernet/marvell/octeon_ep/octep_main.c index 552970c7dec0..2c86b911a380 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -820,6 +820,9 @@ static netdev_tx_t octep_start_xmit(struct sk_buff *skb, u16 nr_frags, si; u16 q_no, wi; =20 + if (skb_put_padto(skb, ETH_ZLEN)) + return NETDEV_TX_OK; + q_no =3D skb_get_queue_mapping(skb); if (q_no >=3D oct->num_iqs) { netdev_err(netdev, "Invalid Tx skb->queue_mapping=3D%d\n", q_no); --=20 2.25.1