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

From
Michael S. Tsirkin <>
Date
2019-12-13T07:16:00+00:00
ID
Thread
Re: [virtio-comment] Re: [PATCH] virtio-net: define feature of per-packet RSS hash delivery
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.

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MST