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From: Wenwu Ma <wenwux.ma@intel.com>
To: dev@dpdk.org
Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com,
	cheng1.jiang@intel.com, Wenwu Ma <wenwux.ma@intel.com>
Subject: [dpdk-dev] [PATCH v2 0/4] vhost: support async dequeue for split ring
Date: Fri, 18 Jun 2021 20:03:01 +0000	[thread overview]
Message-ID: <20210618200305.662515-1-wenwux.ma@intel.com> (raw)
In-Reply-To: <20210602083110.5530-1-yuanx.wang@intel.com>

This patch implements asynchronous dequeue data path for split ring.
A new asynchronous dequeue function is introduced. With this function,
the application can try to receive packets from the guest with
offloading large copies to the DMA engine, thus saving precious CPU
cycles.

v2:
- Refactor vhost datapath as preliminary patch for this series.
- The change of using new API in examples/vhost is put into a
  dedicated patch.
- Check queue_id value before using it.
- Async dequeue performance enhancement. 160% performance improvement
  for v2 vs. v1.
- Async dequeue API name change from rte_vhost_try_dequeue_burst to
  rte_vhost_async_try_dequeue_burst.
- The completed package updates the used ring directly.

Wenwu Ma (3):
  examples/vhost: refactor vhost enqueue and dequeue datapaths.
  examples/vhost: use a new API to query remaining ring space
  examples/vhost: support vhost async dequeue data path

Yuan Wang (1):
  vhost: support async dequeue for split ring

 doc/guides/prog_guide/vhost_lib.rst |  10 +
 doc/guides/sample_app_ug/vhost.rst  |   9 +-
 examples/vhost/ioat.c               |  40 +-
 examples/vhost/ioat.h               |   4 +
 examples/vhost/main.c               | 225 +++++++----
 examples/vhost/main.h               |  38 +-
 examples/vhost/virtio_net.c         |  16 +-
 lib/vhost/rte_vhost_async.h         |  44 ++-
 lib/vhost/version.map               |   3 +
 lib/vhost/virtio_net.c              | 553 ++++++++++++++++++++++++++++
 10 files changed, 839 insertions(+), 103 deletions(-)

-- 
2.25.1


  parent reply	other threads:[~2021-06-18  8:10 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-02  8:31 [dpdk-dev] [PATCH 0/1] lib/vhost: " Yuan Wang
2021-06-02  8:31 ` [dpdk-dev] [PATCH 1/1] " Yuan Wang
2021-06-07 16:17   ` Maxime Coquelin
2021-06-09  1:21     ` Hu, Jiayu
2021-06-18 20:03 ` Wenwu Ma [this message]
2021-06-18 14:10   ` [dpdk-dev] [PATCH v2 0/4] vhost: " Maxime Coquelin
2021-06-18 20:03   ` [dpdk-dev] [PATCH v2 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-06-18 20:03   ` [dpdk-dev] [PATCH v2 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-06-18 20:03   ` [dpdk-dev] [PATCH v2 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-06-18 20:03   ` [dpdk-dev] [PATCH v2 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-06-23 15:00 ` [dpdk-dev] [PATCH v3 0/4] vhost: support async dequeue for split ring Wenwu Ma
2021-06-23 15:00   ` [dpdk-dev] [PATCH v3 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-06-23 15:00   ` [dpdk-dev] [PATCH v3 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-06-23 15:00   ` [dpdk-dev] [PATCH v3 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-06-23 15:00   ` [dpdk-dev] [PATCH v3 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-06-30 19:27 ` [dpdk-dev] [PATCH v4 0/4] support async dequeue for split ring Wenwu Ma
2021-06-30 19:27   ` [dpdk-dev] [PATCH v4 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-06-30 19:27   ` [dpdk-dev] [PATCH v4 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-06-30 19:27   ` [dpdk-dev] [PATCH v4 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-06-30 19:27   ` [dpdk-dev] [PATCH v4 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-07-05 18:11 ` [dpdk-dev] [PATCH v5 0/4] support async dequeue for split ring Wenwu Ma
2021-07-05 18:11   ` [dpdk-dev] [PATCH v5 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-07-13 13:34     ` Maxime Coquelin
2021-07-05 18:11   ` [dpdk-dev] [PATCH v5 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-07-13 13:36     ` Maxime Coquelin
2021-07-05 18:11   ` [dpdk-dev] [PATCH v5 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-07-13 14:30     ` Maxime Coquelin
2021-07-14  6:50       ` Hu, Jiayu
2021-07-15 13:18         ` Maxime Coquelin
2021-07-16  1:10           ` Hu, Jiayu
2021-07-16  7:45             ` Maxime Coquelin
2021-07-16  7:55               ` Hu, Jiayu
2021-07-16  9:02                 ` Maxime Coquelin
2021-07-16  8:14         ` David Marchand
2021-07-16 13:45           ` Hu, Jiayu
2021-07-16 13:52             ` David Marchand
2021-07-16 14:00               ` Hu, Jiayu
2021-07-05 18:11   ` [dpdk-dev] [PATCH v5 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-07-13 17:01     ` Maxime Coquelin
2021-07-16 19:18 ` [dpdk-dev] [PATCH v6 0/4] support async dequeue for split ring Wenwu Ma
2021-07-16 19:18   ` [dpdk-dev] [PATCH v6 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-07-16 19:18   ` [dpdk-dev] [PATCH v6 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-07-16 19:18   ` [dpdk-dev] [PATCH v6 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-07-16 19:18   ` [dpdk-dev] [PATCH v6 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-07-21 14:20 ` [dpdk-dev] [PATCH v7 0/4] support async dequeue for split ring Wenwu Ma
2021-07-21  2:31   ` Wang, Yinan
2021-07-21 14:20   ` [dpdk-dev] [PATCH v7 1/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-07-21 14:20   ` [dpdk-dev] [PATCH v7 2/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-07-21 14:20   ` [dpdk-dev] [PATCH v7 3/4] vhost: support async dequeue for split ring Wenwu Ma
2021-07-21 14:20   ` [dpdk-dev] [PATCH v7 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma

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