From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id C9AA1A09F0; Thu, 17 Dec 2020 10:35:51 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 41FC8CA57; Thu, 17 Dec 2020 10:35:49 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 2D47FCA5E for ; Thu, 17 Dec 2020 10:35:46 +0100 (CET) IronPort-SDR: 1vWtVvsIms1roHLQZq8THzjYqldcizA5sSQoGpYWDGF4gk2OwRNl6QEVRtySJfo/hQLqSFIz2a H1Kawbbl8Tig== X-IronPort-AV: E=McAfee;i="6000,8403,9837"; a="175365356" X-IronPort-AV: E=Sophos;i="5.78,426,1599548400"; d="scan'208";a="175365356" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2020 01:35:44 -0800 IronPort-SDR: lSkvj+8vze4wP79MCut7rPkosH8ygFnUjih1NRokTti0/8+TbgDLD/idH6K7+jdAMXUjZiGMot b0w9HgW0JzRQ== X-IronPort-AV: E=Sophos;i="5.78,426,1599548400"; d="scan'208";a="369760327" Received: from intel-npg-odc-srv01.cd.intel.com ([10.240.178.136]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2020 01:35:10 -0800 From: Steve Yang To: dev@dpdk.org Cc: wenzhuo.lu@intel.com, beilei.xing@intel.com, bernard.iremonger@intel.com, asomalap@amd.com, rahul.lakkireddy@chelsio.com, hemant.agrawal@nxp.com, sachin.saxena@oss.nxp.com, jia.guo@intel.com, haiyue.wang@intel.com, g.singh@nxp.com, xuanziyang2@huawei.com, cloud.wangxiaoyun@huawei.com, zhouguoyang@huawei.com, xavier.huwei@huawei.com, humin29@huawei.com, yisen.zhuang@huawei.com, oulijun@huawei.com, jingjing.wu@intel.com, qiming.yang@intel.com, qi.z.zhang@intel.com, rosen.xu@intel.com, sthotton@marvell.com, srinivasan@marvell.com, heinrich.kuhn@netronome.com, hkalra@marvell.com, jerinj@marvell.com, ndabilpuram@marvell.com, kirankumark@marvell.com, rmody@marvell.com, shshaikh@marvell.com, andrew.rybchenko@oktetlabs.ru, mczekaj@marvell.com, thomas@monjalon.net, ferruh.yigit@intel.com, ivan.boule@6wind.com, konstantin.ananyev@intel.com, samuel.gauthier@6wind.com, david.marchand@6wind.com, shahafs@mellanox.com, stephen@networkplumber.org, maxime.coquelin@redhat.com, olivier.matz@6wind.com, lihuisong@huawei.com, shreyansh.jain@nxp.com, wei.dai@intel.com, fengchunsong@huawei.com, chenhao164@huawei.com, tangchengchang@hisilicon.com, helin.zhang@intel.com, yanglong.wu@intel.com, xiaolong.ye@intel.com, ting.xu@intel.com, xiaoyun.li@intel.com, dan.wei@intel.com, andy.pei@intel.com, vattunuru@marvell.com, skori@marvell.com, sony.chacko@qlogic.com, bruce.richardson@intel.com, ivan.malov@oktetlabs.ru, rad@semihalf.com, slawomir.rosek@semihalf.com, kamil.rytarowski@caviumnetworks.com, wei.zhao1@intel.com, junyux.jiang@intel.com, kumaras@chelsio.com, girish.nandibasappa@amd.com, rolf.neugebauer@netronome.com, alejandro.lucero@netronome.com, Steve Yang Date: Thu, 17 Dec 2020 09:23:07 +0000 Message-Id: <20201217092312.27033-18-stevex.yang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201217092312.27033-1-stevex.yang@intel.com> References: <20201209031628.29572-1-stevex.yang@intel.com> <20201217092312.27033-1-stevex.yang@intel.com> Subject: [dpdk-dev] [PATCH v2 17/22] net/cxgbe: fix the jumbo frame flag condition X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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. If 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 normalize the boundary condition with 'RTE_ETHER_MTU' and overhead even though current overhead is 18. Fixes: 4b2eff452d2e ("cxgbe: enable jumbo frames") Fixes: 0ec33be4c857 ("cxgbe: allow to change mtu") Signed-off-by: Steve Yang --- drivers/net/cxgbe/cxgbe.h | 4 ++++ drivers/net/cxgbe/cxgbe_ethdev.c | 4 ++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/cxgbe/cxgbe.h b/drivers/net/cxgbe/cxgbe.h index ef62af1c3f..7c89a028bf 100644 --- a/drivers/net/cxgbe/cxgbe.h +++ b/drivers/net/cxgbe/cxgbe.h @@ -19,6 +19,10 @@ #define CXGBE_MAX_RX_PKTLEN (9000 + RTE_ETHER_HDR_LEN + \ RTE_ETHER_CRC_LEN) /* max pkt */ +/* The max frame size with default MTU */ +#define CXGBE_ETH_MAX_LEN (RTE_ETHER_MTU + \ + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN) + /* Max poll time is 100 * 100msec = 10 sec */ #define CXGBE_LINK_STATUS_POLL_MS 100 /* 100ms */ #define CXGBE_LINK_STATUS_POLL_CNT 100 /* Max number of times to poll */ diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c index 98d0362fa3..480d6f58a8 100644 --- a/drivers/net/cxgbe/cxgbe_ethdev.c +++ b/drivers/net/cxgbe/cxgbe_ethdev.c @@ -300,7 +300,7 @@ int cxgbe_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu) return -EINVAL; /* set to jumbo mode if needed */ - if (new_mtu > RTE_ETHER_MAX_LEN) + if (new_mtu > CXGBE_ETH_MAX_LEN) eth_dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else @@ -669,7 +669,7 @@ int cxgbe_dev_rx_queue_setup(struct rte_eth_dev *eth_dev, rxq->fl.size = temp_nb_desc; /* Set to jumbo mode if necessary */ - if (pkt_len > RTE_ETHER_MAX_LEN) + if (pkt_len > CXGBE_ETH_MAX_LEN) eth_dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else -- 2.17.1