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{
    "id": 8382,
    "url": "http://patches.dpdk.org/api/patches/8382/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/1446210034-13750-7-git-send-email-jijiang.liu@intel.com/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<1446210034-13750-7-git-send-email-jijiang.liu@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1446210034-13750-7-git-send-email-jijiang.liu@intel.com",
    "date": "2015-10-30T13:00:31",
    "name": "[dpdk-dev,v2,6/9] driver/virtio:enqueue vhost TX offload",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "64cdfc3474c5a9adcce9ade2dfd2025b8c1aefe4",
    "submitter": {
        "id": 52,
        "url": "http://patches.dpdk.org/api/people/52/?format=api",
        "name": "Jijiang Liu",
        "email": "jijiang.liu@intel.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/1446210034-13750-7-git-send-email-jijiang.liu@intel.com/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/8382/comments/",
    "check": "pending",
    "checks": "http://patches.dpdk.org/api/patches/8382/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id A530E8E9F;\n\tFri, 30 Oct 2015 14:00:57 +0100 (CET)",
            "from mga14.intel.com (mga14.intel.com [192.55.52.115])\n\tby dpdk.org (Postfix) with ESMTP id 9D9348E9D\n\tfor <dev@dpdk.org>; Fri, 30 Oct 2015 14:00:55 +0100 (CET)",
            "from fmsmga003.fm.intel.com ([10.253.24.29])\n\tby fmsmga103.fm.intel.com with ESMTP; 30 Oct 2015 06:00:54 -0700",
            "from shvmail01.sh.intel.com ([10.239.29.42])\n\tby FMSMGA003.fm.intel.com with ESMTP; 30 Oct 2015 06:00:54 -0700",
            "from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com\n\t[10.239.29.89])\n\tby shvmail01.sh.intel.com with ESMTP id t9UD0pgm023073;\n\tFri, 30 Oct 2015 21:00:51 +0800",
            "from shecgisg004.sh.intel.com (localhost [127.0.0.1])\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP\n\tid t9UD0nYa013827; Fri, 30 Oct 2015 21:00:51 +0800",
            "(from jijiangl@localhost)\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t9UD0n33013823; \n\tFri, 30 Oct 2015 21:00:49 +0800"
        ],
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.20,218,1444719600\"; d=\"scan'208\";a=\"590999376\"",
        "From": "Jijiang Liu <jijiang.liu@intel.com>",
        "To": "dev@dpdk.org",
        "Date": "Fri, 30 Oct 2015 21:00:31 +0800",
        "Message-Id": "<1446210034-13750-7-git-send-email-jijiang.liu@intel.com>",
        "X-Mailer": "git-send-email 1.7.12.2",
        "In-Reply-To": "<1446210034-13750-1-git-send-email-jijiang.liu@intel.com>",
        "References": "<1446210034-13750-1-git-send-email-jijiang.liu@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v2 6/9] driver/virtio:enqueue vhost TX offload",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Enqueue vhost TX checksum and TSO4/6 offload in virtio-net lib.\n\nSigned-off-by: Jijiang Liu <jijiang.liu@intel.com>\n---\n drivers/net/virtio/virtio_rxtx.c |   61 ++++++++++++++++++++++++++++++++++++++\n 1 files changed, 61 insertions(+), 0 deletions(-)",
    "diff": "diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c\nindex c5b53bb..b99f5b5 100644\n--- a/drivers/net/virtio/virtio_rxtx.c\n+++ b/drivers/net/virtio/virtio_rxtx.c\n@@ -50,6 +50,10 @@\n #include <rte_string_fns.h>\n #include <rte_errno.h>\n #include <rte_byteorder.h>\n+#include <rte_tcp.h>\n+#include <rte_ip.h>\n+#include <rte_udp.h>\n+#include <rte_sctp.h>\n \n #include \"virtio_logs.h\"\n #include \"virtio_ethdev.h\"\n@@ -199,6 +203,58 @@ virtqueue_enqueue_recv_refill(struct virtqueue *vq, struct rte_mbuf *cookie)\n }\n \n static int\n+virtqueue_enqueue_offload(struct virtqueue *txvq, struct rte_mbuf *m,\n+\t\t\tuint16_t idx, uint16_t hdr_sz)\n+{\n+\tstruct virtio_net_hdr *hdr = (struct virtio_net_hdr *)(uintptr_t)\n+\t\t\t\t(txvq->virtio_net_hdr_addr + idx * hdr_sz);\n+\n+\thdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;\n+\n+\t/* if vhost TX checksum offload is required */\n+\tif (m->ol_flags & PKT_TX_IP_CKSUM) {\n+\t\thdr->csum_start = m->l2_len;\n+\t\thdr->csum_offset = offsetof(struct ipv4_hdr, hdr_checksum);\n+\t} else if (m->ol_flags & PKT_TX_L4_MASK) {\n+\t\thdr->csum_start = m->l2_len + m->l3_len;\n+\t\tswitch (m->ol_flags & PKT_TX_L4_MASK) {\n+\t\tcase PKT_TX_TCP_CKSUM:\n+\t\t\thdr->csum_offset = offsetof(struct tcp_hdr, cksum);\n+\t\t\tbreak;\n+\t\tcase PKT_TX_UDP_CKSUM:\n+\t\t\thdr->csum_offset = offsetof(struct udp_hdr,\n+\t\t\t\t\t\t\tdgram_cksum);\n+\t\t\tbreak;\n+\t\tcase PKT_TX_SCTP_CKSUM:\n+\t\t\thdr->csum_offset = offsetof(struct sctp_hdr, cksum);\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\tbreak;\n+\t\t}\n+\t} else\n+\t\thdr->flags = 0;\n+\n+\t/* if vhost TSO offload is required */\n+\tif (m->tso_segsz != 0 && m->ol_flags & PKT_TX_TCP_SEG) {\n+\t\tif (m->ol_flags & PKT_TX_IPV4) {\n+\t\t\tif (!vtpci_with_feature(txvq->hw,\n+\t\t\t\tVIRTIO_NET_F_HOST_TSO4))\n+\t\t\t\treturn -1;\n+\t\t\thdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;\n+\t\t} else if (m->ol_flags & PKT_TX_IPV6) {\n+\t\t\tif (!vtpci_with_feature(txvq->hw,\n+\t\t\t\tVIRTIO_NET_F_HOST_TSO6))\n+\t\t\t\treturn -1;\n+\t\t\thdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6;\n+\t\t}\n+\t\thdr->gso_size = m->tso_segsz;\n+\t\thdr->hdr_len = m->l2_len + m->l3_len + m->l4_len;\n+\t} else\n+\t\thdr->gso_type = VIRTIO_NET_HDR_GSO_NONE;\n+\treturn 0;\n+}\n+\n+static int\n virtqueue_enqueue_xmit(struct virtqueue *txvq, struct rte_mbuf *cookie)\n {\n \tstruct vq_desc_extra *dxp;\n@@ -221,6 +277,11 @@ virtqueue_enqueue_xmit(struct virtqueue *txvq, struct rte_mbuf *cookie)\n \tdxp->cookie = (void *)cookie;\n \tdxp->ndescs = needed;\n \n+\tif (vtpci_with_feature(txvq->hw, VIRTIO_NET_F_CSUM)) {\n+\t\tif (virtqueue_enqueue_offload(txvq, cookie, idx, head_size) < 0)\n+\t\t\treturn -EPERM;\n+\t}\n+\n \tstart_dp = txvq->vq_ring.desc;\n \tstart_dp[idx].addr =\n \t\ttxvq->virtio_net_hdr_mem + idx * head_size;\n",
    "prefixes": [
        "dpdk-dev",
        "v2",
        "6/9"
    ]
}