From mboxrd@z Thu Jan 1 00:00:00 1970 From: Huawei Xie Subject: [PATCH v2 7/7] virtio: pick simple rx/tx func Date: Sun, 18 Oct 2015 14:29:04 +0800 Message-ID: <1445149744-3217-8-git-send-email-huawei.xie@intel.com> References: <1443537953-23917-1-git-send-email-huawei.xie@intel.com> <1445149744-3217-1-git-send-email-huawei.xie@intel.com> To: dev@dpdk.org Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id C6BA18E79 for ; Sun, 18 Oct 2015 08:29:35 +0200 (CEST) In-Reply-To: <1445149744-3217-1-git-send-email-huawei.xie@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" simple rx/tx func is enabled when user specifies single segment, no offload support. merge-able should be disabled to use simple rxtx. Signed-off-by: Huawei Xie --- drivers/net/virtio/virtio_rxtx.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c index 947fc46..71f8cd4 100644 --- a/drivers/net/virtio/virtio_rxtx.c +++ b/drivers/net/virtio/virtio_rxtx.c @@ -62,6 +62,10 @@ #define VIRTIO_DUMP_PACKET(m, len) do { } while (0) #endif + +#define VIRTIO_SIMPLE_FLAGS ((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS | \ + ETH_TXQ_FLAGS_NOOFFLOADS) + static int use_simple_rxtx; static void @@ -471,6 +475,14 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev, return -EINVAL; } + /* Use simple rx/tx func if single segment and no offloads */ + if ((tx_conf->txq_flags & VIRTIO_SIMPLE_FLAGS) == VIRTIO_SIMPLE_FLAGS) { + PMD_INIT_LOG(INFO, "Using simple rx/tx path"); + dev->tx_pkt_burst = virtio_xmit_pkts_simple; + dev->rx_pkt_burst = virtio_recv_pkts_vec; + use_simple_rxtx = 1; + } + ret = virtio_dev_queue_setup(dev, VTNET_TQ, queue_idx, vtpci_queue_idx, nb_desc, socket_id, &vq); if (ret < 0) { -- 1.8.1.4