From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1JD6a0-0004RU-7G
	for qemu-devel@nongnu.org; Thu, 10 Jan 2008 18:12:56 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1JD6Zy-0004Ob-Uk
	for qemu-devel@nongnu.org; Thu, 10 Jan 2008 18:12:55 -0500
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1JD6Zy-0004O6-O3
	for qemu-devel@nongnu.org; Thu, 10 Jan 2008 18:12:54 -0500
Received: from fg-out-1718.google.com ([72.14.220.154])
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <dor.laor@gmail.com>) id 1JD6Zy-00013V-Cw
	for qemu-devel@nongnu.org; Thu, 10 Jan 2008 18:12:54 -0500
Received: by fg-out-1718.google.com with SMTP id e12so925294fga.8
	for <qemu-devel@nongnu.org>; Thu, 10 Jan 2008 15:12:52 -0800 (PST)
Message-ID: <4786A66F.1010509@qumranet.com>
Date: Fri, 11 Jan 2008 01:12:47 +0200
MIME-Version: 1.0
Subject: Re: [Qemu-devel] [PATCH] e1000 emulation code
References: <1199896975.4382.31.camel@localhost.localdomain>
	<fb249edb0801100858h7d91f1d7u3ac6ec67ff7d31ef@mail.gmail.com>
In-Reply-To: <fb249edb0801100858h7d91f1d7u3ac6ec67ff7d31ef@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
From: Dor Laor <dor.laor@gmail.com>
Reply-To: dor.laor@qumranet.com, 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: andrzej zaborowski <balrogg@gmail.com>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>, ir Peleg <nir@tutis.com>, qemu-devel@nongnu.org

andrzej zaborowski wrote:
> Hi,
>
> On 09/01/2008, Dor Laor <dor.laor@gmail.com> wrote:
>   
>> It which supports TCP/UDP and IP transmit checksum, as well as TSO.
>> It has been tested with Linux (2.6.18|22|23|24)++ and Windows XP (using
>> the driver supplied at the intel download site).
>> Windows Vista recognizes it but there is no traffic.
>>
>> Checksum calculation is currently naïve and unoptimized (the host
>> kernel does it better). But when working in conjuction to tso
>> the performance is drastically better.
>>
>> Some figures: Linux rx 350Mbps, tx 150bps, Windows rx 700mbps, tx 100 mbps.
>>     
>
> That will be great to have in qemu.
>
>   
>> The e1000_hw.h is copied from Linux kernel.
>>     
>
> Would it be possible to pick only the useful stuff from the header and
> put it into the same file, rather than maintaining a copy of a linux
> header (which is 3.5 bigger than the actual emulation in kLoC)? Qemu
> has avoided that until now.
>
>   
I can but then how can you compile qemu for OS's which do not have 
Linux/ or linux headers?
>> qemu/hw/e1000.c      | 1000 +++++++++++++++
>> qemu/hw/e1000_hw.h   | 3411 ++++++++++++++++++++++++++++++++++++++++++++++++++
>>     
>
> Regards.
>