From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 88A02A05D3 for ; Wed, 27 Mar 2019 11:58:12 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id DC1206C9B; Wed, 27 Mar 2019 11:58:11 +0100 (CET) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 669225A4A; Wed, 27 Mar 2019 11:58:10 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Mar 2019 03:58:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,276,1549958400"; d="scan'208";a="135193384" Received: from dpdk51.sh.intel.com ([10.67.110.245]) by fmsmga008.fm.intel.com with ESMTP; 27 Mar 2019 03:58:08 -0700 From: Qi Zhang To: beilei.xing@intel.com Cc: konstantin.ananyev@intel.com, dev@dpdk.org, ferruh.yigit@intel.com, Qi Zhang , stable@dpdk.org Date: Wed, 27 Mar 2019 19:00:05 +0800 Message-Id: <20190327110005.1454-1-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 Subject: [dpdk-dev] [PATCH] net/i40e: fix scattered Rx enabling 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" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190327110005.t-8l1E2_0JLCz34q8JIATOZOOOvfn07aVIV92qpUuCE@z> No need to add additional vlan tag size for max packet size, since for i40e, the queue's Rx Max Frame Size (rxq->max_pkt_len) already includes the vlan header size. Fixes: a3c83a2527e1 ("net/i40e: enable runtime queue setup") Fixes: 4861cde46116 ("i40e: new poll mode driver") Cc: stable@dpdk.org Signed-off-by: Qi Zhang --- drivers/net/i40e/i40e_rxtx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 8f727fae6..4d1a5929e 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -1718,7 +1718,7 @@ i40e_dev_rx_queue_setup_runtime(struct rte_eth_dev *dev, (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM); int use_scattered_rx = - ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size); + (rxq->max_pkt_len > buf_size); if (i40e_rx_queue_init(rxq) != I40E_SUCCESS) { PMD_DRV_LOG(ERR, @@ -2708,7 +2708,7 @@ i40e_rx_queue_init(struct i40e_rx_queue *rxq) RTE_PKTMBUF_HEADROOM); /* Check if scattered RX needs to be used. */ - if ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size) { + if (rxq->max_pkt_len > buf_size) { dev_data->scattered_rx = 1; } -- 2.13.6