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 057A8A04B1; Wed, 23 Sep 2020 06:27:37 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 99BC71DC14; Wed, 23 Sep 2020 06:27:16 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 376291DC01 for ; Wed, 23 Sep 2020 06:27:12 +0200 (CEST) IronPort-SDR: 6tO39vsloOAfwBpjaNubh+OXbIul+TbqXEcMbqhiXSJhQboHrXP9fQAeNpr5jxM6+6jKdZLA48 LrM34z6oPydg== X-IronPort-AV: E=McAfee;i="6000,8403,9752"; a="178858038" X-IronPort-AV: E=Sophos;i="5.77,293,1596524400"; d="scan'208";a="178858038" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2020 21:27:11 -0700 IronPort-SDR: +LVAFdrHfqK/r32iRP87XFLT83zx169vEmksaaXMjkcjlXTwdha+x9HIJ/3IUmAYcdtVKkrn9Z jDYNrOhUjIDQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,293,1596524400"; d="scan'208";a="322471605" Received: from intel-npg-odc-srv01.cd.intel.com ([10.240.178.136]) by orsmga002.jf.intel.com with ESMTP; 22 Sep 2020 21:27:08 -0700 From: SteveX Yang To: dev@dpdk.org Cc: wei.zhao1@intel.com, jia.guo@intel.com, qiming.yang@intel.com, qi.z.zhang@intel.com, jingjing.wu@intel.com, beilei.xing@intel.com, konstantin.ananyev@intel.com, SteveX Yang Date: Wed, 23 Sep 2020 04:09:09 +0000 Message-Id: <20200923040909.73418-6-stevex.yang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200923040909.73418-1-stevex.yang@intel.com> References: <20200922012338.11277-1-stevex.yang@intel.com> <20200923040909.73418-1-stevex.yang@intel.com> Subject: [dpdk-dev] [PATCH v3 5/5] net/iavf: fix max mtu size packets with vlan tag cannot be received by default 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" testpmd will initialize default max packet length to 1518 which doesn't include vlan tag size in ether overheader. Once, send the max mtu length packet with vlan tag, the max packet length will exceed 1518 that will cause packets dropped directly from NIC hw side. iavf can support dual vlan tags that need more 8 bytes for max packet size, so, configures the correct max packet size in dev_config ops. Fixes: 02d212ca3125 ("net/iavf: rename remaining avf strings") Signed-off-by: SteveX Yang --- drivers/net/iavf/iavf_ethdev.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c index 440da7d76..20581994c 100644 --- a/drivers/net/iavf/iavf_ethdev.c +++ b/drivers/net/iavf/iavf_ethdev.c @@ -226,6 +226,11 @@ iavf_dev_configure(struct rte_eth_dev *dev) if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; + /* Considering QinQ packet, max frame size should be MTU and + * corresponding ether overhead. + */ + iavf_dev_mtu_set(dev, dev->data->mtu); + /* Vlan stripping setting */ if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN) { if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_STRIP) -- 2.17.1