From patchwork Mon Aug 31 09:41:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jijiang Liu X-Patchwork-Id: 6835 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id A1F5391B3; Mon, 31 Aug 2015 11:42:24 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 2EA218E9F for ; Mon, 31 Aug 2015 11:42:23 +0200 (CEST) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP; 31 Aug 2015 02:42:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,439,1437462000"; d="scan'208";a="552052832" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by FMSMGA003.fm.intel.com with ESMTP; 31 Aug 2015 02:42:07 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t7V9g6A6007091; Mon, 31 Aug 2015 17:42:06 +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 t7V9g3if003196; Mon, 31 Aug 2015 17:42:05 +0800 Received: (from jijiangl@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t7V9g3SX003192; Mon, 31 Aug 2015 17:42:03 +0800 From: Jijiang Liu To: dev@dpdk.org Date: Mon, 31 Aug 2015 17:41:44 +0800 Message-Id: <1441014108-3125-5-git-send-email-jijiang.liu@intel.com> X-Mailer: git-send-email 1.7.12.2 In-Reply-To: <1441014108-3125-1-git-send-email-jijiang.liu@intel.com> References: <1441014108-3125-1-git-send-email-jijiang.liu@intel.com> Subject: [dpdk-dev] [RFC PATCH 4/8] driver/virtio:enqueue TSO offload 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Enqueue TSO4/6 offload. Signed-off-by: Jijiang Liu --- drivers/net/virtio/virtio_rxtx.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c index c5b53bb..4c2d838 100644 --- a/drivers/net/virtio/virtio_rxtx.c +++ b/drivers/net/virtio/virtio_rxtx.c @@ -198,6 +198,28 @@ virtqueue_enqueue_recv_refill(struct virtqueue *vq, struct rte_mbuf *cookie) return 0; } +static void +virtqueue_enqueue_offload(struct virtqueue *txvq, struct rte_mbuf *m, + uint16_t idx, uint16_t hdr_sz) +{ + struct virtio_net_hdr *hdr = (struct virtio_net_hdr *)(uintptr_t) + (txvq->virtio_net_hdr_addr + idx * hdr_sz); + + if (m->tso_segsz != 0 && m->ol_flags & PKT_TX_TCP_SEG) { + if (m->ol_flags & PKT_TX_IPV4) { + if (!vtpci_with_feature(txvq->hw, VIRTIO_NET_F_HOST_TSO4)) + return; + hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4; + } else if (m->ol_flags & PKT_TX_IPV6) { + if (!vtpci_with_feature(txvq->hw, VIRTIO_NET_F_HOST_TSO6)) + return; + hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6; + } + hdr->gso_size = m->tso_segsz; + hdr->hdr_len = m->l2_len + m->l3_len + m->l4_len; + } +} + static int virtqueue_enqueue_xmit(struct virtqueue *txvq, struct rte_mbuf *cookie) { @@ -221,6 +243,7 @@ virtqueue_enqueue_xmit(struct virtqueue *txvq, struct rte_mbuf *cookie) dxp->cookie = (void *)cookie; dxp->ndescs = needed; + virtqueue_enqueue_offload(txvq, cookie, idx, head_size); start_dp = txvq->vq_ring.desc; start_dp[idx].addr = txvq->virtio_net_hdr_mem + idx * head_size;