Re: [virtio-comment] Re: [PATCH] virtio-net: define feature of per-packet RSS hash delivery

[Yuri Benditovich <yuri.benditovich@daynix.com>]

On Fri, Dec 13, 2019 at 9:16 AM Michael S. Tsirkin <mst@redhat.com> wrote:
>
> On Fri, Dec 13, 2019 at 06:34:39AM +0200, Yuri Benditovich wrote:
> >
> > So there are 2 possible profiles of devices that 'do not have RSS' but
> > deliver hash:
> > 1. The device is in general can do RSS, but has only one pair of
> > queues and does only hash calculation
> > 2. The device has multiple queues but is configured to do auto
> > steering and we want also hash from it.
> >
> > My impression is that case 2 is rather academic one (at least looking forward).
> > Do you agree?
>
> I am not sure I agree. auto mq is much easier to configure than RSS
> so I image it's useful even if one wants hash.

With RSS and hash delivery we're mainly targeting virtio-net in hardware.
Auto mq is much more complicated, correct?

>
> --
> MST
>