From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1LyrQn-0004ED-NI
	for qemu-devel@nongnu.org; Tue, 28 Apr 2009 13:49:21 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1LyrQj-0004D8-RO
	for qemu-devel@nongnu.org; Tue, 28 Apr 2009 13:49:21 -0400
Received: from [199.232.76.173] (port=40096 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1LyrQj-0004D1-KC
	for qemu-devel@nongnu.org; Tue, 28 Apr 2009 13:49:17 -0400
Received: from e1.ny.us.ibm.com ([32.97.182.141]:47457)
	by monty-python.gnu.org with esmtps
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60)
	(envelope-from <aliguori@us.ibm.com>) id 1LyrQj-0007GH-8J
	for qemu-devel@nongnu.org; Tue, 28 Apr 2009 13:49:17 -0400
Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236])
	by e1.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n3SHjkeQ016718
	for <qemu-devel@nongnu.org>; Tue, 28 Apr 2009 13:45:46 -0400
Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64])
	by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id
	n3SHnFlU039674
	for <qemu-devel@nongnu.org>; Tue, 28 Apr 2009 13:49:15 -0400
Received: from d01av04.pok.ibm.com (loopback [127.0.0.1])
	by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id
	n3SHnFLS005864
	for <qemu-devel@nongnu.org>; Tue, 28 Apr 2009 13:49:15 -0400
Message-ID: <49F74199.5030503@us.ibm.com>
Date: Tue, 28 Apr 2009 12:49:13 -0500
From: Anthony Liguori <aliguori@us.ibm.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] Re: [PATCH 9/9] Introduce VLANClientState::cleanup()
References: <1239812969-8320-2-git-send-email-markmc@redhat.com>
	<200904281817.56416.paul@codesourcery.com>
	<49F73C15.7090504@us.ibm.com>
	<200904281846.19363.paul@codesourcery.com>
In-Reply-To: <200904281846.19363.paul@codesourcery.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
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: Paul Brook <paul@codesourcery.com>
Cc: Mark McLoughlin <markmc@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel@nongnu.org, Markus Armbruster <armbru@redhat.com>

Paul Brook wrote:
> Hmm, in that case I don't understand your distinction between frontend and 
> backend.
>   

In the case of networking, they don't have to be distinct because all 
you need to do is have two "front-ends" and flip the TX/RX queues.  
Although even in this case, someone has to own the MAC address so it's 
not purely symmetric.

In the general case, that isn't always true for devices.  Consider block 
devices, for instance.

-- 
Regards,

Anthony Liguori