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.benditov...@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.benditov...@daynix.com> Signed-off-by: Jason Wang <jasow...@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
