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SubjectRe: [PATCH net-next 0/3] support changing steering policies in tuntap
>> In the future, both simple and sophisticated policy like RSS or other guest
>> driven steering policies could be done on top.
>
> IMHO there should be a more practical example before adding all this
> indirection. And it would be nice to understand why this queue selection
> needs to be tun specific.

I was thinking the same and this reminds me of the various strategies
implemented in packet fanout. tun_cpu_select_queue is analogous to
fanout_demux_cpu though it is tun-specific in that it requires tun->numqueues.

Fanout accrued various strategies until it gained an eBPF variant. Just
supporting BPF is probably sufficient here, too.

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