From: Arjan van de Ven <arjan@infradead.org>
To: Heng Du <debbiehow315@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-net@vger.kernel.org
Subject: Re: E1000 zero copy
Date: Tue, 20 Jun 2006 10:17:52 +0200 [thread overview]
Message-ID: <1150791472.2891.164.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <7fc623d50606192355l799ea043hc4eacb190e6be1ce@mail.gmail.com>
On Tue, 2006-06-20 at 14:55 +0800, Heng Du wrote:
> Hi all,
>
> I want to know if there is an existing patch to e1000 network driver
> to enable zero copy.
> If so, can you share me with it?
> If not, is it accepable if I submit a patch?
> Many thanks
Hi,
The e1000 driver supports zero copy for sending already for a long time
(if I remember correctly, since 2.4.3 kernel or so) already. Zero copy
receive is a much harder issue, and for that you need more
infrastructure; I think the IOAT patches that got merged last night in
the post-2.6.17 tree will help for that, but I do not know if what got
merged is sufficient already for full support.
I hope this answers your question; if not I would like to ask you to
explain in more detail what you mean by "enable zero copy"...
Greetings,
Arjan van de Ven
next prev parent reply other threads:[~2006-06-20 8:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-20 6:55 Heng Du
2006-06-20 8:17 ` Arjan van de Ven [this message]
[not found] ` <8C8631AA59959A1-528-3CB0@FWM-D36.sysops.aol.com>
2006-06-22 7:28 ` Dropped TCP connections with 2.6.X kernel daveflinux
2006-06-22 11:49 ` Chris Boot
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