From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id A24F28F9B for ; Wed, 11 Nov 2015 07:41:15 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 10 Nov 2015 22:41:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,274,1444719600"; d="scan'208";a="833894632" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga001.fm.intel.com with ESMTP; 10 Nov 2015 22:41:09 -0800 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id tAB6f7fD027482; Wed, 11 Nov 2015 14:41:07 +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 tAB6f5qt001260; Wed, 11 Nov 2015 14:41:07 +0800 Received: (from jijiangl@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id tAB6f5Kh001256; Wed, 11 Nov 2015 14:41:05 +0800 From: Jijiang Liu To: dev@dpdk.org Date: Wed, 11 Nov 2015 14:40:46 +0800 Message-Id: <1447224046-1169-9-git-send-email-jijiang.liu@intel.com> X-Mailer: git-send-email 1.7.12.2 In-Reply-To: <1447224046-1169-1-git-send-email-jijiang.liu@intel.com> References: <1447224046-1169-1-git-send-email-jijiang.liu@intel.com> Subject: [dpdk-dev] [PATCH v4 8/8] virtio/lib:add guest offload handle 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: Wed, 11 Nov 2015 06:41:16 -0000 Enqueue guest offload(CSUM and TSO) handle. Signed-off-by: Jijiang Liu --- lib/librte_vhost/vhost_rxtx.c | 45 +++++++++++++++++++++++++++++++++++++++- 1 files changed, 43 insertions(+), 2 deletions(-) diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c index 9e70990..468fed8 100644 --- a/lib/librte_vhost/vhost_rxtx.c +++ b/lib/librte_vhost/vhost_rxtx.c @@ -54,6 +54,42 @@ is_valid_virt_queue_idx(uint32_t idx, int is_tx, uint32_t qp_nb) return (is_tx ^ (idx & 1)) == 0 && idx < qp_nb * VIRTIO_QNUM; } +static void +virtio_enqueue_offload(struct rte_mbuf *m_buf, struct virtio_net_hdr *net_hdr) +{ + if (m_buf->ol_flags & PKT_TX_L4_MASK) { + net_hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM; + net_hdr->csum_start = m_buf->l2_len + m_buf->l3_len; + + switch (m_buf->ol_flags & PKT_TX_L4_MASK) { + case PKT_TX_TCP_CKSUM: + net_hdr->csum_offset = (offsetof(struct tcp_hdr, + cksum)); + break; + case PKT_TX_UDP_CKSUM: + net_hdr->csum_offset = (offsetof(struct udp_hdr, + dgram_cksum)); + break; + case PKT_TX_SCTP_CKSUM: + net_hdr->csum_offset = (offsetof(struct sctp_hdr, + cksum)); + break; + } + } + + if (m_buf->ol_flags & PKT_TX_TCP_SEG) { + if (m_buf->ol_flags & PKT_TX_IPV4) + net_hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4; + else + net_hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6; + net_hdr->gso_size = m_buf->tso_segsz; + net_hdr->hdr_len = m_buf->l2_len + m_buf->l3_len + + m_buf->l4_len; + } + + return; +} + /** * This function adds buffers to the virtio devices RX virtqueue. Buffers can * be received from the physical port or from another virtio device. A packet @@ -67,7 +103,7 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id, { struct vhost_virtqueue *vq; struct vring_desc *desc; - struct rte_mbuf *buff; + struct rte_mbuf *buff, *first_buff; /* The virtio_hdr is initialised to 0. */ struct virtio_net_hdr_mrg_rxbuf virtio_hdr = {{0, 0, 0, 0, 0, 0}, 0}; uint64_t buff_addr = 0; @@ -139,6 +175,7 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id, desc = &vq->desc[head[packet_success]]; buff = pkts[packet_success]; + first_buff = buff; /* Convert from gpa to vva (guest physical addr -> vhost virtual addr) */ buff_addr = gpa_to_vva(dev, desc->addr); @@ -221,7 +258,9 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id, if (unlikely(uncompleted_pkt == 1)) continue; - + + virtio_enqueue_offload(first_buff, &virtio_hdr.hdr); + rte_memcpy((void *)(uintptr_t)buff_hdr_addr, (const void *)&virtio_hdr, vq->vhost_hlen); @@ -295,6 +334,8 @@ copy_from_mbuf_to_vring(struct virtio_net *dev, uint32_t queue_id, LOG_DEBUG(VHOST_DATA, "(%"PRIu64") RX: Num merge buffers %d\n", dev->device_fh, virtio_hdr.num_buffers); + virtio_enqueue_offload(pkt, &virtio_hdr.hdr); + rte_memcpy((void *)(uintptr_t)vb_hdr_addr, (const void *)&virtio_hdr, vq->vhost_hlen); -- 1.7.7.6