netdev - Re: [PATCH 1/2] net: Toeplitz library functions

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Message-ID: <CA+mtBx9u3-mnULxTwyWAZA4gZ6Dg-PeYYVGZibwQi7toinHJ-A@mail.gmail.com>
Date:	Tue, 24 Sep 2013 09:35:54 -0700
From:	Tom Herbert <therbert@...gle.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
Subject: Re: [PATCH 1/2] net: Toeplitz library functions

On Tue, Sep 24, 2013 at 9:14 AM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Tue, 2013-09-24 at 18:01 +0200, Hannes Frederic Sowa wrote:
>
>> inet(6)_ehashfn does get used by udp btw. But I do not understand the code,
>> yet. ;)
>
> Oh well, thats the SO_REUSEPORT thing. We do not really care, thats only
> used to try to steer udp flows on a given socket, but its a hint.
>
> Presumably it should use a separate secret key.
>
>
We should really be using rxhash for that anyway, eliminate this
ehashfn.  This would entail adding rxhash argument in the various
udp_lookup functions.
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