From patchwork Mon Jan 18 07:04:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Yang X-Patchwork-Id: 86744 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BC0BDA0A03; Mon, 18 Jan 2021 08:08:25 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id F2707140D44; Mon, 18 Jan 2021 08:08:16 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mails.dpdk.org (Postfix) with ESMTP id 1CEB3140D36 for ; Mon, 18 Jan 2021 08:08:13 +0100 (CET) IronPort-SDR: 8mjCfeIXzPodDuWDmjtmtErlEPpJyrsM/vPam5P/7DZWTJY/Au49Bwg+4rIkBoo7y+S2jMf29M ZvaSv2vM4B/g== X-IronPort-AV: E=McAfee;i="6000,8403,9867"; a="197460156" X-IronPort-AV: E=Sophos;i="5.79,355,1602572400"; d="scan'208";a="197460156" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jan 2021 23:08:13 -0800 IronPort-SDR: iqRwqSJGFYvTiKSVoFwfiW/8EeEV0eZ1lMZnyP82xBLV6+FmbvQrg/xmXXLi7tcnbgpr1N/sbR ZfH32wOWd8gA== X-IronPort-AV: E=Sophos;i="5.79,355,1602572400"; d="scan'208";a="355086743" Received: from intel-npg-odc-srv01.cd.intel.com ([10.240.178.136]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jan 2021 23:08:11 -0800 From: Steve Yang To: dev@dpdk.org Cc: Steve Yang , Hemant Agrawal , Sachin Saxena Date: Mon, 18 Jan 2021 07:04:09 +0000 Message-Id: <20210118070428.36998-4-stevex.yang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210118070428.36998-1-stevex.yang@intel.com> References: <20210114094537.13661-1-stevex.yang@intel.com> <20210118070428.36998-1-stevex.yang@intel.com> Subject: [dpdk-dev] [PATCH v4 03/22] net/dpaa: fix the jumbo frame flag condition for mtu set X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition, but the Ether overhead is larger than 18 when it supports VLAN tag. That will cause the jumbo flag rx offload is wrong when MTU size is 'RTE_ETHER_MTU'. This fix will change the boundary condition with 'RTE_ETHER_MTU' and overhead, that perhaps impacts the cases of the jumbo frame related. Fixes: 25f854197abc ("net/dpaa: support jumbo frames") Cc: Hemant Agrawal Cc: Sachin Saxena Acked-by: Hemant Agrawal Signed-off-by: Steve Yang --- drivers/net/dpaa/dpaa_ethdev.c | 2 +- drivers/net/dpaa/dpaa_ethdev.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c index f00279e004..0c87c136d7 100644 --- a/drivers/net/dpaa/dpaa_ethdev.c +++ b/drivers/net/dpaa/dpaa_ethdev.c @@ -184,7 +184,7 @@ dpaa_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) return -EINVAL; } - if (frame_size > RTE_ETHER_MAX_LEN) + if (frame_size > DPAA_ETH_MAX_LEN) dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else diff --git a/drivers/net/dpaa/dpaa_ethdev.h b/drivers/net/dpaa/dpaa_ethdev.h index 659bceb467..a858b1372c 100644 --- a/drivers/net/dpaa/dpaa_ethdev.h +++ b/drivers/net/dpaa/dpaa_ethdev.h @@ -51,6 +51,10 @@ #define VLAN_TAG_SIZE 4 /** < Vlan Header Length */ #endif +#define DPAA_ETH_MAX_LEN (RTE_ETHER_MTU + \ + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + \ + VLAN_TAG_SIZE) + /* PCD frame queues */ #define DPAA_DEFAULT_NUM_PCD_QUEUES 1 #define DPAA_VSP_PROFILE_MAX_NUM 8