From: Marvin Liu <yong.liu@intel.com>
To: tiwei.bie@intel.com, maxime.coquelin@redhat.com, dev@dpdk.org
Cc: Marvin Liu <yong.liu@intel.com>
Subject: [dpdk-dev] [RFC PATCH 08/13] add vhost fast dequeue flush function
Date: Tue, 9 Jul 2019 01:13:15 +0800 [thread overview]
Message-ID: <20190708171320.38802-9-yong.liu@intel.com> (raw)
In-Reply-To: <20190708171320.38802-1-yong.liu@intel.com>
Vhost fast dequeue function will flush used ring immediately.
Descriptor's flag is pre-calculated by macro.
Signed-off-by: Marvin Liu <yong.liu@intel.com>
diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 83ed2d599..cd51ed47a 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -265,6 +265,21 @@ flush_used_fast_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
}
}
+static __rte_always_inline void
+flush_dequeue_fast_used_packed(struct virtio_net *dev,
+ struct vhost_virtqueue *vq, uint16_t id,
+ uint16_t id1, uint16_t id2, uint16_t id3)
+{
+ uint16_t flags = 0;
+
+ if (vq->used_wrap_counter)
+ flags = VIRTIO_TX_FLAG_PACKED;
+ else
+ flags = VIRTIO_TX_WRAP_FLAG_PACKED;
+
+ flush_used_fast_packed(dev, vq, 0, 0, 0, 0, id, id1, id2, id3, flags);
+}
+
static __rte_always_inline void
flush_enqueue_fast_used_packed(struct virtio_net *dev,
struct vhost_virtqueue *vq, uint64_t len,
@@ -1946,6 +1961,8 @@ virtio_dev_tx_fast_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
(void *)(uintptr_t)(desc_addr[3] + buf_offset),
pkts[3]->pkt_len);
+ flush_dequeue_fast_used_packed(dev, vq, ids[0], ids[1], ids[2],
+ ids[3]);
if (virtio_net_with_host_offload(dev)) {
hdr = (struct virtio_net_hdr *)((uintptr_t)desc_addr[0]);
hdr1 = (struct virtio_net_hdr *)((uintptr_t)desc_addr[1]);
--
2.17.1
next prev parent reply other threads:[~2019-07-08 9:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 17:13 [dpdk-dev] [RFC] vhost packed ring performance optimization Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 01/13] add vhost normal enqueue function Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 02/13] add vhost packed ring fast " Marvin Liu
[not found] ` <CGME20190708113801eucas1p25d89717d8b298790326077852c9933c8@eucas1p2.samsung.com>
2019-07-08 11:37 ` Ilya Maximets
2019-07-09 1:15 ` Liu, Yong
2019-07-10 4:28 ` Jason Wang
2019-07-10 7:30 ` Liu, Yong
2019-07-11 4:11 ` Jason Wang
2019-07-11 9:49 ` Liu, Yong
2019-07-11 9:54 ` Jason Wang
2019-08-13 9:02 ` Liu, Yong
2019-07-11 8:35 ` Jason Wang
2019-07-11 9:37 ` Liu, Yong
2019-07-11 9:44 ` Jason Wang
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 03/13] add vhost packed ring normal dequeue function Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 04/13] add vhost packed ring fast " Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 05/13] add enqueue shadow used descs update and flush functions Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 06/13] add vhost fast enqueue flush function Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 07/13] add vhost dequeue shadow descs update function Marvin Liu
2019-07-08 17:13 ` Marvin Liu [this message]
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 09/13] replace vhost enqueue packed ring function Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 10/13] add vhost fast zero copy dequeue " Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 11/13] replace vhost " Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 12/13] support inorder in vhost dequeue path Marvin Liu
2019-07-08 17:13 ` [dpdk-dev] [RFC PATCH 13/13] remove useless vhost functions Marvin Liu
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