From: xuan.ding@intel.com
To: maxime.coquelin@redhat.com, chenbo.xia@intel.com
Cc: dev@dpdk.org, jiayu.hu@intel.com, cheng1.jiang@intel.com,
sunil.pai.g@intel.com, liangma@liangbit.com,
Xuan Ding <xuan.ding@intel.com>
Subject: [PATCH v2 0/5] vhost: support async dequeue data path
Date: Mon, 11 Apr 2022 10:00:27 +0000 [thread overview]
Message-ID: <20220411100032.114434-1-xuan.ding@intel.com> (raw)
In-Reply-To: <20220407152546.38167-1-xuan.ding@intel.com>
From: Xuan Ding <xuan.ding@intel.com>
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This patch set is a new design and implementation of [2]. Since dmadev
was introduced in DPDK 21.11, to simplify application logics, this patch
integrates dmadev in vhost. With dmadev integrated, vhost supports M:N
mapping between vrings and DMA virtual channels. Specifically, one vring
can use multiple different DMA channels and one DMA channel can be
shared by multiple vrings at the same time.
A new asynchronous dequeue function is introduced:
1) rte_vhost_async_try_dequeue_burst(int vid, uint16_t queue_id,
struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts,
uint16_t count, int *nr_inflight,
uint16_t dma_id, uint16_t vchan_id)
Receive packets from the guest and offloads copies to DMA
virtual channel.
[1] https://mails.dpdk.org/archives/dev/2022-February/234555.html
[2] https://mails.dpdk.org/archives/dev/2021-September/218591.html
v1->v2:
* fix a typo
* fix a bug in desc_to_mbuf filling
RFC v3 -> v1:
* add sync and async path descriptor to mbuf refactoring
* add API description in docs
RFC v2 -> RFC v3:
* rebase to latest DPDK version
RFC v1 -> RFC v2:
* fix one bug in example
* rename vchan to vchan_id
* check if dma_id and vchan_id valid
* rework all the logs to new standard
Xuan Ding (5):
vhost: prepare sync for descriptor to mbuf refactoring
vhost: prepare async for descriptor to mbuf refactoring
vhost: merge sync and async descriptor to mbuf filling
vhost: support async dequeue for split ring
examples/vhost: support async dequeue data path
doc/guides/prog_guide/vhost_lib.rst | 7 +
doc/guides/rel_notes/release_22_07.rst | 4 +
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c | 292 +++++++++++-----
examples/vhost/main.h | 35 +-
examples/vhost/virtio_net.c | 16 +-
lib/vhost/rte_vhost_async.h | 33 ++
lib/vhost/version.map | 3 +
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 460 ++++++++++++++++++++++---
10 files changed, 712 insertions(+), 148 deletions(-)
--
2.17.1
next prev parent reply other threads:[~2022-04-11 10:01 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-07 15:25 [PATCH v1 " xuan.ding
2022-04-07 15:25 ` [PATCH v1 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-04-07 15:25 ` [PATCH v1 2/5] vhost: prepare async " xuan.ding
2022-04-07 15:25 ` [PATCH v1 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-04-07 15:25 ` [PATCH v1 4/5] vhost: support async dequeue for split ring xuan.ding
2022-04-07 15:25 ` [PATCH v1 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-04-11 10:00 ` xuan.ding [this message]
2022-04-11 10:00 ` [PATCH v2 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-04-11 10:00 ` [PATCH v2 2/5] vhost: prepare async " xuan.ding
2022-04-11 10:00 ` [PATCH v2 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-04-11 10:00 ` [PATCH v2 4/5] vhost: support async dequeue for split ring xuan.ding
2022-04-11 10:00 ` [PATCH v2 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-04-19 3:43 ` [PATCH v3 0/5] vhost: " xuan.ding
2022-04-19 3:43 ` [PATCH v3 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-04-22 15:30 ` Maxime Coquelin
2022-04-19 3:43 ` [PATCH v3 2/5] vhost: prepare async " xuan.ding
2022-04-22 15:32 ` Maxime Coquelin
2022-04-19 3:43 ` [PATCH v3 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-04-22 11:06 ` David Marchand
2022-04-22 15:46 ` Maxime Coquelin
2022-04-24 2:02 ` Ding, Xuan
2022-04-22 15:43 ` Maxime Coquelin
2022-04-19 3:43 ` [PATCH v3 4/5] vhost: support async dequeue for split ring xuan.ding
2022-04-19 3:43 ` [PATCH v3 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-05 6:23 ` [PATCH v4 0/5] vhost: " xuan.ding
2022-05-05 6:23 ` [PATCH v4 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-05-05 7:37 ` Yang, YvonneX
2022-05-05 6:23 ` [PATCH v4 2/5] vhost: prepare async " xuan.ding
2022-05-05 7:38 ` Yang, YvonneX
2022-05-05 6:23 ` [PATCH v4 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-05-05 7:39 ` Yang, YvonneX
2022-05-05 6:23 ` [PATCH v4 4/5] vhost: support async dequeue for split ring xuan.ding
2022-05-05 7:40 ` Yang, YvonneX
2022-05-05 19:36 ` Maxime Coquelin
2022-05-05 6:23 ` [PATCH v4 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-05 7:39 ` Yang, YvonneX
2022-05-05 19:38 ` Maxime Coquelin
2022-05-05 19:52 ` [PATCH v4 0/5] vhost: " Maxime Coquelin
2022-05-06 1:49 ` Ding, Xuan
2022-05-13 2:00 ` [PATCH v5 " xuan.ding
2022-05-13 2:00 ` [PATCH v5 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-05-13 2:00 ` [PATCH v5 2/5] vhost: prepare async " xuan.ding
2022-05-13 2:00 ` [PATCH v5 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-05-13 2:00 ` [PATCH v5 4/5] vhost: support async dequeue for split ring xuan.ding
2022-05-13 2:24 ` Stephen Hemminger
2022-05-13 2:33 ` Ding, Xuan
2022-05-13 2:00 ` [PATCH v5 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-13 2:50 ` [PATCH v6 0/5] vhost: " xuan.ding
2022-05-13 2:50 ` [PATCH v6 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-05-13 2:50 ` [PATCH v6 2/5] vhost: prepare async " xuan.ding
2022-05-13 2:50 ` [PATCH v6 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-05-13 2:50 ` [PATCH v6 4/5] vhost: support async dequeue for split ring xuan.ding
2022-05-13 2:50 ` [PATCH v6 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-13 3:27 ` Xia, Chenbo
2022-05-13 3:51 ` Ding, Xuan
2022-05-16 2:43 ` [PATCH v7 0/5] vhost: " xuan.ding
2022-05-16 2:43 ` [PATCH v7 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-05-16 2:43 ` [PATCH v7 2/5] vhost: prepare async " xuan.ding
2022-05-16 2:43 ` [PATCH v7 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-05-16 2:43 ` [PATCH v7 4/5] vhost: support async dequeue for split ring xuan.ding
2022-05-16 5:52 ` Hu, Jiayu
2022-05-16 6:10 ` Ding, Xuan
2022-05-16 2:43 ` [PATCH v7 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-16 11:10 ` [PATCH v8 0/5] vhost: " xuan.ding
2022-05-16 11:10 ` [PATCH v8 1/5] vhost: prepare sync for descriptor to mbuf refactoring xuan.ding
2022-05-16 11:10 ` [PATCH v8 2/5] vhost: prepare async " xuan.ding
2022-05-16 11:10 ` [PATCH v8 3/5] vhost: merge sync and async descriptor to mbuf filling xuan.ding
2022-05-16 11:10 ` [PATCH v8 4/5] vhost: support async dequeue for split ring xuan.ding
2022-06-16 14:38 ` David Marchand
2022-06-16 14:40 ` David Marchand
2022-06-17 6:34 ` Ding, Xuan
2022-05-16 11:10 ` [PATCH v8 5/5] examples/vhost: support async dequeue data path xuan.ding
2022-05-17 13:22 ` [PATCH v8 0/5] vhost: " Maxime Coquelin
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