From: Stephen Hemminger <shemminger@vyatta.com>
To: David Miller <davem@davemloft.net>
Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org
Subject: Re: [RFC PATCH net-next-2.6] gro: drivers should feed GRO only with TCP packets
Date: Wed, 1 Sep 2010 10:55:19 -0700 [thread overview]
Message-ID: <20100901105519.603492cf@nehalam> (raw)
In-Reply-To: <20100901.104805.35816252.davem@davemloft.net>
On Wed, 01 Sep 2010 10:48:05 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:
> From: Stephen Hemminger <shemminger@vyatta.com>
> Date: Wed, 1 Sep 2010 10:42:35 -0700
>
> > There was talk of doing GRO for UDP as well but it never
> > got implemented.
>
> I suppose the most direct application would be for IP fragmentation.
>
> In fact I could see that working very well.
>
> But for non-fragmented UDP... I can't see much value to that.
>
> We'd have to preserve the packet boundaries, and process each chunk of
> data as one packet at a time within those boundaries, to retain
> datagram recvmsg() semantics.
I was thinking for fragmented UDP, which still unfortunately
gets used.
next prev parent reply other threads:[~2010-09-01 17:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-01 17:04 [RFC PATCH net-next-2.6] gro: drivers should feed GRO only with TCP packets Eric Dumazet
2010-09-01 17:42 ` Stephen Hemminger
2010-09-01 17:48 ` David Miller
2010-09-01 17:55 ` Stephen Hemminger [this message]
2010-09-01 20:10 ` David Miller
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