linux-kernel - Re: [PATCH v4 5/5] flow_dissector: Parse batman-adv unicast headers

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Date:   Thu, 21 Dec 2017 13:24:36 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Sven Eckelmann <sven.eckelmann@...nmesh.com>
Cc:     b.a.t.m.a.n@...ts.open-mesh.org, netdev@...r.kernel.org,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Tom Herbert <tom@...bertland.com>,
        Jiri Pirko <jiri@...lanox.com>, linux-kernel@...r.kernel.org,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH v4 5/5] flow_dissector: Parse batman-adv unicast headers

Thu, Dec 21, 2017 at 10:17:42AM CET, sven.eckelmann@...nmesh.com wrote:
>The batman-adv unicast packets contain a full layer 2 frame in encapsulated
>form. The flow dissector must therefore be able to parse the batman-adv
>unicast header to reach the layer 2+3 information.
>
>  +--------------------+
>  | ip(v6)hdr          |
>  +--------------------+
>  | inner ethhdr       |
>  +--------------------+
>  | batadv unicast hdr |
>  +--------------------+
>  | outer ethhdr       |
>  +--------------------+
>
>The obtained information from the upper layer can then be used by RPS to
>schedule the processing on separate cores. This allows better distribution
>of multiple flows from the same neighbor to different cores.
>
>Signed-off-by: Sven Eckelmann <sven.eckelmann@...nmesh.com>

Reviewed-by: Jiri Pirko <jiri@...lanox.com>