From: Jijiang Liu <jijiang.liu@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [RFC PATCH 4/8] driver/virtio:enqueue TSO offload
Date: Mon, 31 Aug 2015 17:41:44 +0800 [thread overview]
Message-ID: <1441014108-3125-5-git-send-email-jijiang.liu@intel.com> (raw)
In-Reply-To: <1441014108-3125-1-git-send-email-jijiang.liu@intel.com>
Enqueue TSO4/6 offload.
Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
---
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;
--
1.7.7.6
next prev parent reply other threads:[~2015-08-31 9:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-31 9:41 [dpdk-dev] [RFC PATCH 0/8] Add vhost TSO capability Jijiang Liu
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 1/8] driver/virtio:add vhost TSO support capability Jijiang Liu
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 2/8] driver/virtio: add virtual addr for virtio net header Jijiang Liu
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 3/8] driver/virtio: record virtual address of " Jijiang Liu
2015-08-31 9:41 ` Jijiang Liu [this message]
2015-09-01 3:28 ` [dpdk-dev] [RFC PATCH 4/8] driver/virtio:enqueue TSO offload Ouyang, Changchun
2015-09-07 6:11 ` Liu, Jijiang
2015-09-09 1:17 ` Ouyang, Changchun
2015-09-09 17:21 ` Liu, Jijiang
2015-09-09 23:03 ` Ouyang, Changchun
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 5/8] lib/librte_vhost:dequeue vhost " Jijiang Liu
2015-09-01 3:40 ` Ouyang, Changchun
2015-09-07 6:16 ` Liu, Jijiang
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 6/8] lib/librte_vhost:extend supported vhost features Jijiang Liu
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 7/8] examples/vhost:support tso in vhost sample Jijiang Liu
2015-08-31 9:41 ` [dpdk-dev] [RFC PATCH 8/8] app/testpmd: modify the mac of csum forwarding Jijiang Liu
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