Re: [PATCH net-next 0/3] support changing steering policies in tuntap

From	Jason Wang <jasowang@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH net-next 0/3] support changing steering policies in tuntap
Date	2017-09-28 10:00 +0200
Message-ID	<uuBTH-6bp-1@gated-at.bofh.it> (permalink)
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On 2017年09月28日 13:02, Tom Herbert wrote:
> On Wed, Sep 27, 2017 at 4:25 PM, Willem de Bruijn
> <willemdebruijn.kernel@gmail.com> wrote:
>>>> 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.
> +1, in addition to packet fanout, we have SO_REUSEPORT with BPF, RPS,
> RFS, etc. It would be nice if existing packet steering mechanisms
> could be leveraged for tun.

This could be done by using the API introduced in this series, I can try 
this in V2.

Thanks

Thread

[PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-27 10:30 +0200
  [PATCH net-next 3/3] tun: introduce cpu id based steering policy Jason Wang <jasowang@redhat.com> - 2017-09-27 10:30 +0200
  Re: [PATCH net-next 0/3] support changing steering policies in tuntap "Michael S. Tsirkin" <mst@redhat.com> - 2017-09-28 00:20 +0200
    Re: [PATCH net-next 0/3] support changing steering policies in tuntap Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2017-09-28 01:30 +0200
      Re: [PATCH net-next 0/3] support changing steering policies in tuntap Tom Herbert <tom@herbertland.com> - 2017-09-28 07:10 +0200
        Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 10:00 +0200
      Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 09:30 +0200
        Re: [PATCH net-next 0/3] support changing steering policies in tuntap Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2017-09-28 18:10 +0200
          Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-29 11:50 +0200
          Re: [PATCH net-next 0/3] support changing steering policies in tuntap "Michael S. Tsirkin" <mst@redhat.com> - 2017-10-01 05:30 +0200
    Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 09:00 +0200

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