From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id E8DC158F1 for ; Fri, 27 Nov 2015 02:55:54 +0100 (CET) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 26 Nov 2015 17:55:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,349,1444719600"; d="scan'208";a="860564867" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga002.fm.intel.com with ESMTP; 26 Nov 2015 17:55:53 -0800 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id tAR1tpu7001373; Fri, 27 Nov 2015 09:55:51 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id tAR1tmOc016275; Fri, 27 Nov 2015 09:55:50 +0800 Received: (from jingche2@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id tAR1tmt9016271; Fri, 27 Nov 2015 09:55:48 +0800 From: "Chen Jing D(Mark)" To: dev@dpdk.org Date: Fri, 27 Nov 2015 09:55:45 +0800 Message-Id: <1448589345-16239-1-git-send-email-jing.d.chen@intel.com> X-Mailer: git-send-email 1.7.12.2 Subject: [dpdk-dev] [PATCH] fm10k: fix wrong Rx func is used X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Nov 2015 01:55:55 -0000 From: "Chen Jing D(Mark)" Steps to reproduce the bug: 1. All Rx offloading is disabled and start the device, then Vector Rx is used. 2. Stop the device. Re-configure to enable hw_ip_checksum = 1, start the device again. 3. In this case, assume regular Rx should be used since Vector Rx doesn't support ip checksum offload. But actually Vector Rx is used and cause checksum won't be done by hardware. The reason is after re-configuring, driver misses an "else" in func fm10k_set_rx_function(). Then Rx func in last round are used. Fixes:77a8ab47("fm10k: select best Rx function") Reported-by: Xiao Wang Signed-off-by: Chen Jing D(Mark) --- drivers/net/fm10k/fm10k_ethdev.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index 4f23ce3..e4aed94 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -2486,6 +2486,8 @@ fm10k_set_rx_function(struct rte_eth_dev *dev) dev->rx_pkt_burst = fm10k_recv_pkts_vec; } else if (dev->data->scattered_rx) dev->rx_pkt_burst = fm10k_recv_scattered_pkts; + else + dev->rx_pkt_burst = fm10k_recv_pkts; rx_using_sse = (dev->rx_pkt_burst == fm10k_recv_scattered_pkts_vec || -- 1.7.7.6