mbox series

[v2,0/4] vhost: support async dequeue for split ring

Message ID 20210618200305.662515-1-wenwux.ma@intel.com (mailing list archive)
Headers show
Series vhost: support async dequeue for split ring | expand

Message

Wenwu Ma June 18, 2021, 8:03 p.m. UTC
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(-)

Comments

Maxime Coquelin June 18, 2021, 2:10 p.m. UTC | #1
Hi,

It seems the series does not build:
http://mails.dpdk.org/archives/test-report/2021-June/199414.html

Could you please look at it?

Thanks,
Maxime

On 6/18/21 10:03 PM, Wenwu Ma wrote:
> 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(-)
>