netdev - Re: [PATCH net-next v9] virtio_net: Support RX hash XDP hint

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Date: Wed, 17 Apr 2024 09:51:00 +0200
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Liang Chen <liangchen.linux@...il.com>, mst@...hat.com,
 jasowang@...hat.com, xuanzhuo@...ux.alibaba.com, hengqi@...ux.alibaba.com,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, john.fastabend@...il.com
Cc: netdev@...r.kernel.org, virtualization@...ts.linux.dev,
 linux-kernel@...r.kernel.org, bpf@...r.kernel.org, daniel@...earbox.net,
 ast@...nel.org
Subject: Re: [PATCH net-next v9] virtio_net: Support RX hash XDP hint



On 17/04/2024 09.18, Liang Chen wrote:
> The RSS hash report is a feature that's part of the virtio specification.
> Currently, virtio backends like qemu, vdpa (mlx5), and potentially vhost
> (still a work in progress as per [1]) support this feature. While the
> capability to obtain the RSS hash has been enabled in the normal path,
> it's currently missing in the XDP path. Therefore, we are introducing
> XDP hints through kfuncs to allow XDP programs to access the RSS hash.
> 
> 1.
> https://lore.kernel.org/all/20231015141644.260646-1-akihiko.odaki@daynix.com/#r
> 
> Signed-off-by: Liang Chen<liangchen.linux@...il.com>

LGTM

Acked-by: Jesper Dangaard Brouer <hawk@...nel.org>