From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jijiang Liu Subject: [RFC PATCH 5/8] lib/librte_vhost:dequeue vhost TSO offload Date: Mon, 31 Aug 2015 17:41:45 +0800 Message-ID: <1441014108-3125-6-git-send-email-jijiang.liu@intel.com> References: <1441014108-3125-1-git-send-email-jijiang.liu@intel.com> To: dev@dpdk.org Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id D6C7E8E9F for ; Mon, 31 Aug 2015 11:42:23 +0200 (CEST) In-Reply-To: <1441014108-3125-1-git-send-email-jijiang.liu@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" Dequeue vhost TSO offload Signed-off-by: Jijiang Liu --- lib/librte_vhost/vhost_rxtx.c | 29 ++++++++++++++++++++++++++++- 1 files changed, 28 insertions(+), 1 deletions(-) diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c index 0d07338..9adfdb1 100644 --- a/lib/librte_vhost/vhost_rxtx.c +++ b/lib/librte_vhost/vhost_rxtx.c @@ -545,6 +545,30 @@ rte_vhost_enqueue_burst(struct virtio_net *dev, uint16_t queue_id, return virtio_dev_rx(dev, queue_id, pkts, count); } +static inline void __attribute__((always_inline)) +vhost_dequeue_offload(uint64_t addr, struct rte_mbuf *m) +{ + struct virtio_net_hdr *hdr = + (struct virtio_net_hdr *)((uintptr_t)addr); + + if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) { + switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) { + case VIRTIO_NET_HDR_GSO_TCPV4: + m->ol_flags |= (PKT_TX_IPV4 | PKT_TX_TCP_SEG); + m->tso_segsz = hdr->gso_size; + break; + case VIRTIO_NET_HDR_GSO_TCPV6: + m->ol_flags |= (PKT_TX_IPV6 | PKT_TX_TCP_SEG); + m->tso_segsz = hdr->gso_size; + break; + default: + RTE_LOG(ERR, VHOST_DATA, + "bad gso type %u.\n", hdr->gso_type); + break; + } + } +} + uint16_t rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id, struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count) @@ -553,6 +577,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id, struct vhost_virtqueue *vq; struct vring_desc *desc; uint64_t vb_addr = 0; + uint64_t vb_net_hdr_addr = 0; uint32_t head[MAX_PKT_BURST]; uint32_t used_idx; uint32_t i; @@ -604,6 +629,8 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id, desc = &vq->desc[head[entry_success]]; + vb_net_hdr_addr = gpa_to_vva(dev, desc->addr); + /* Discard first buffer as it is the virtio header */ if (desc->flags & VRING_DESC_F_NEXT) { desc = &vq->desc[desc->next]; @@ -742,7 +769,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id, break; m->nb_segs = seg_num; - + vhost_dequeue_offload(vb_net_hdr_addr, m); pkts[entry_success] = m; vq->last_used_idx++; entry_success++; -- 1.7.7.6