From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 443D9F91A; Wed, 28 Dec 2016 12:01:00 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP; 28 Dec 2016 03:00:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,422,1477983600"; d="scan'208";a="23663568" Received: from yliu-dev.sh.intel.com ([10.239.67.162]) by orsmga002.jf.intel.com with ESMTP; 28 Dec 2016 03:00:55 -0800 From: Yuanhan Liu To: dev@dpdk.org Cc: Yuanhan Liu , stable@dpdk.org Date: Wed, 28 Dec 2016 19:02:38 +0800 Message-Id: <1482922962-21036-3-git-send-email-yuanhan.liu@linux.intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1482922962-21036-1-git-send-email-yuanhan.liu@linux.intel.com> References: <1482391123-8149-1-git-send-email-yuanhan.liu@linux.intel.com> <1482922962-21036-1-git-send-email-yuanhan.liu@linux.intel.com> Subject: [dpdk-stable] [PATCH v2 2/6] net/virtio: fix wrong Rx/Tx method for secondary process X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Dec 2016 11:01:00 -0000 If the primary enables the vector Rx/Tx path, the current code would let the secondary always choose the non vector Rx/Tx path. This results to a Rx/Tx method mismatch between primary and secondary process. Werid errors then may happen, something like: PMD: virtio_xmit_pkts() tx: virtqueue_enqueue error: -14 Fix it by choosing the correct Rx/Tx callbacks for the secondary process. That is, use vector path if it's given. Fixes: 8d8393fb1861 ("virtio: pick simple Rx/Tx") Cc: stable@dpdk.org Signed-off-by: Yuanhan Liu --- v2: fix a checkpatch warning: use {} consistently --- drivers/net/virtio/virtio_ethdev.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 079fd6c..ef37ad1 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -1304,7 +1304,12 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) eth_dev->tx_pkt_burst = &virtio_xmit_pkts; if (rte_eal_process_type() == RTE_PROC_SECONDARY) { - rx_func_get(eth_dev); + if (hw->use_simple_rxtx) { + eth_dev->tx_pkt_burst = virtio_xmit_pkts_simple; + eth_dev->rx_pkt_burst = virtio_recv_pkts_vec; + } else { + rx_func_get(eth_dev); + } return 0; } -- 2.8.1