From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1IPKUB-0006iU-1e
	for qemu-devel@nongnu.org; Sun, 26 Aug 2007 11:57:11 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1IPKU6-0006dt-OP
	for qemu-devel@nongnu.org; Sun, 26 Aug 2007 11:57:10 -0400
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1IPKU6-0006dk-CW
	for qemu-devel@nongnu.org; Sun, 26 Aug 2007 11:57:06 -0400
Received: from wx-out-0506.google.com ([66.249.82.225])
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <anthony@codemonkey.ws>) id 1IPKU5-0004Cu-Vv
	for qemu-devel@nongnu.org; Sun, 26 Aug 2007 11:57:06 -0400
Received: by wx-out-0506.google.com with SMTP id h31so1335832wxd
	for <qemu-devel@nongnu.org>; Sun, 26 Aug 2007 08:57:04 -0700 (PDT)
Subject: Re: [Qemu-devel] e1000 emulation
From: Anthony Liguori <anthony@codemonkey.ws>
In-Reply-To: <46D09C8E.3060101@monatomic.org>
References: <46D09C8E.3060101@monatomic.org>
Content-Type: text/plain
Date: Sun, 26 Aug 2007 10:57:05 -0500
Message-Id: <1188143825.9457.1.camel@squirrel>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org


On Sun, 2007-08-26 at 00:18 +0300, Dan Aloni wrote:
> Hello,
> 
> Is anyone interested in a patch for an unstable, though working e1000 
> emulation for
> QEMU? It is aimed for this chip-set version:

Yes!  The e1000 has a lot of interesting features that should make it
emulation friendly.

> 0e:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet 
> Controller
> 
> I originally created it very recently to provide a virtual NIC that 
> supports Jumbo
> packets. Unfortunately it appears that the tun driver doesn't implement
> change_mtu() so it didn't integrate very well with qemu-kvm.

If it proves useful, then there's no reason the tun driver can't be
changed.  Were you expecting to get a significant performance boost with
jumbo frames or was this just a functionality thing?  The current
emulated nic performance is pretty bad...

Regards,

Anthony Liguori