DPDK patches and discussions
 help / color / mirror / Atom feed
* [dpdk-dev] DPDK Virtio PMD RX RSS support?
@ 2020-06-25 21:27 Vincent Li
  2020-06-28  6:41 ` Jason Wang
  0 siblings, 1 reply; 2+ messages in thread
From: Vincent Li @ 2020-06-25 21:27 UTC (permalink / raw)
  To: dev; +Cc: Maxime Coquelin, Zhihong Wang, Xiaolong Ye


Hi,

I found Qemu start to support virtio-net RX RSS:

List:       qemu-devel
Subject:    [PULL V2 02/33] virtio-net: implement RX RSS processing
From:       Jason Wang <jasowang () redhat ! com>
Date:       2020-06-18 13:21:17
Message-ID: 1592486508-6135-3-git-send-email-jasowang () redhat ! com
[Download RAW message or body]

From: Yuri Benditovich <yuri.benditovich@daynix.com>

If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process
incoming packets, calculate packet's hash and place the
packet into respective RX virtqueue.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/net/Makefile.objs           |  1 +
 hw/net/virtio-net.c            | 88 
+++++++++++++++++++++++++++++++++++++++++-
 include/hw/virtio/virtio-net.h |  1 +
 3 files changed, 88 insertions(+), 2 deletions(-)

If I understand it correct, in order for DPDK to support Virtio-net RX RSS 
in Qemu/KVM guest, the DPDK Virtio PMD also needs to support RX RSS, is 
that right? if so, any plan to enhance Virtio PMD to support RX RSS ?

Regards,

Vincent
 


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [dpdk-dev] DPDK Virtio PMD RX RSS support?
  2020-06-25 21:27 [dpdk-dev] DPDK Virtio PMD RX RSS support? Vincent Li
@ 2020-06-28  6:41 ` Jason Wang
  0 siblings, 0 replies; 2+ messages in thread
From: Jason Wang @ 2020-06-28  6:41 UTC (permalink / raw)
  To: Vincent Li, dev; +Cc: Maxime Coquelin, Zhihong Wang, Xiaolong Ye


On 2020/6/26 上午5:27, Vincent Li wrote:
> Hi,
>
> I found Qemu start to support virtio-net RX RSS:
>
> List:       qemu-devel
> Subject:    [PULL V2 02/33] virtio-net: implement RX RSS processing
> From:       Jason Wang <jasowang () redhat ! com>
> Date:       2020-06-18 13:21:17
> Message-ID: 1592486508-6135-3-git-send-email-jasowang () redhat ! com
> [Download RAW message or body]
>
> From: Yuri Benditovich <yuri.benditovich@daynix.com>
>
> If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process
> incoming packets, calculate packet's hash and place the
> packet into respective RX virtqueue.
>
> Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
>   hw/net/Makefile.objs           |  1 +
>   hw/net/virtio-net.c            | 88
> +++++++++++++++++++++++++++++++++++++++++-
>   include/hw/virtio/virtio-net.h |  1 +
>   3 files changed, 88 insertions(+), 2 deletions(-)
>
> If I understand it correct, in order for DPDK to support Virtio-net RX RSS
> in Qemu/KVM guest, the DPDK Virtio PMD also needs to support RX RSS, is
> that right? if so, any plan to enhance Virtio PMD to support RX RSS ?


I think we did. But I think we need first implement RSS in the vhost 
lib. (RSS is only supported in the qemu userspace datapath which is slow).

Thanks


>
> Regards,
>
> Vincent
>   
>


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2020-06-28  6:41 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-25 21:27 [dpdk-dev] DPDK Virtio PMD RX RSS support? Vincent Li
2020-06-28  6:41 ` Jason Wang

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git