changeset 16405: Add e100 NIC support.

changeset 16405: Add e100 NIC support.

[Daniel P. Berrange]

I see we've just added a completely new hardware driver to Xen's QEMU...

http://xenbits.xensource.com/staging/xen-unstable.hg?rev/ec0bc82cebfd

Please send this patch to upstream qemu-devel mailing list for review
& inclusion so we don't have to carry this in Xen's QEMU forever....

The commit message suggests this is primarily for windows/ia64. Does anyone
have any info though on how it compares to the current rtl8139 driver in
terms of throughput ? ie would it be worth using for Linux guests too in
preference to rtl8139, or is it only useful for the windows/ia64 niche ?

Regards,
Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=| 

RE: changeset 16405: Add e100 NIC support.

[Zhang, Xing Z]

I did a rough compare between RTL8139 and E100 on XEN/IA64 linux guest, E100 get 30% faster than RTL8139.
The purpose I wrote this driver is for windows network of XEN/IA64. I think it still works in x86/x64 guest.
Ok, I will post it to QEMU's mail list.

Good good study,day day up ! ^_^
-Wing(zhang xin)

OTC,Intel Corporation
>-----Original Message-----
>From: Daniel P. Berrange [mailto:berrange@redhat.com]
>Sent: 2007?11?21? 18:32
>To: xen-devel@lists.xensource.com; Zhang, Xing Z
>Subject: changeset 16405: Add e100 NIC support.
>
>I see we've just added a completely new hardware driver to Xen's
>QEMU...
>
>http://xenbits.xensource.com/staging/xen-unstable.hg?rev/ec
>0bc82cebfd
>
>Please send this patch to upstream qemu-devel mailing list for
>review
>& inclusion so we don't have to carry this in Xen's QEMU
>forever....
>
>The commit message suggests this is primarily for windows/ia64.
>Does anyone
>have any info though on how it compares to the current rtl8139
>driver in
>terms of throughput ? ie would it be worth using for Linux guests
>too in
>preference to rtl8139, or is it only useful for the windows/ia64
>niche ?
>
>Regards,
>Dan.
>--
>|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1
>978 392 2496 -=|
>|=-           Perl modules: http://search.cpan.org/~danberr/
>-=|
>|=-               Projects: http://freshmeat.net/~danielpb/
>-=|
>|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742
>7D3B 9505  -=|

Re: RE: changeset 16405: Add e100 NIC support.

[Pasi Kärkkäinen]

On Wed, Nov 21, 2007 at 08:49:27PM +0800, Zhang, Xing Z wrote:
> I did a rough compare between RTL8139 and E100 on XEN/IA64 linux guest, E100 get 30% faster than RTL8139.
> The purpose I wrote this driver is for windows network of XEN/IA64. I think it still works in x86/x64 guest.
> Ok, I will post it to QEMU's mail list.
> 

I think VMware supports e1000 emulation too.. does that have any advantage
over e100? faster/gigabit? Worth implementing in Xen/QEMU?

-- Pasi

> Good good study,day day up ! ^_^
> -Wing(zhang xin)
> 
> OTC,Intel Corporation
> >-----Original Message-----
> >From: Daniel P. Berrange [mailto:berrange@redhat.com]
> >Sent: 2007?11?21? 18:32
> >To: xen-devel@lists.xensource.com; Zhang, Xing Z
> >Subject: changeset 16405: Add e100 NIC support.
> >
> >I see we've just added a completely new hardware driver to Xen's
> >QEMU...
> >
> >http://xenbits.xensource.com/staging/xen-unstable.hg?rev/ec
> >0bc82cebfd
> >
> >Please send this patch to upstream qemu-devel mailing list for
> >review
> >& inclusion so we don't have to carry this in Xen's QEMU
> >forever....
> >
> >The commit message suggests this is primarily for windows/ia64.
> >Does anyone
> >have any info though on how it compares to the current rtl8139
> >driver in
> >terms of throughput ? ie would it be worth using for Linux guests
> >too in
> >preference to rtl8139, or is it only useful for the windows/ia64
> >niche ?
> >
> >Regards,
> >Dan.
> >--
> >|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1
> >978 392 2496 -=|
> >|=-           Perl modules: http://search.cpan.org/~danberr/
> >-=|
> >|=-               Projects: http://freshmeat.net/~danielpb/
> >-=|
> >|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742
> >7D3B 9505  -=|
> 

RE: RE: changeset 16405: Add e100 NIC support.

[Zhang, Xing Z]

I don't read e1000 spec. it's an igbx card so I think it works with less port IO and MMIO access. This will benefit current QEMU
device model. 
Seems Longhorn released with no e100 driver, but e1000 driver
should be included. Somebody implements an e1000 emulator is really appreciated.

Good good study,day day up ! ^_^
-Wing(zhang xin)

OTC,Intel Corporation
>-----Original Message-----
>From: Pasi Kärkkäinen [mailto:pasik@iki.fi]
>Sent: 2007?11?21? 21:24
>To: Zhang, Xing Z
>Cc: Daniel P. Berrange; xen-devel@lists.xensource.com
>Subject: Re: [Xen-devel] RE: changeset 16405: Add e100 NIC
>support.
>
>On Wed, Nov 21, 2007 at 08:49:27PM +0800, Zhang, Xing Z wrote:
>> I did a rough compare between RTL8139 and E100 on XEN/IA64
>linux guest, E100 get 30% faster than RTL8139.
>> The purpose I wrote this driver is for windows network of
>XEN/IA64. I think it still works in x86/x64 guest.
>> Ok, I will post it to QEMU's mail list.
>>
>
>I think VMware supports e1000 emulation too.. does that have
>any advantage
>over e100? faster/gigabit? Worth implementing in Xen/QEMU?
>
>-- Pasi
>
>> Good good study,day day up ! ^_^
>> -Wing(zhang xin)
>>
>> OTC,Intel Corporation
>> >-----Original Message-----
>> >From: Daniel P. Berrange [mailto:berrange@redhat.com]
>> >Sent: 2007?11?21? 18:32
>> >To: xen-devel@lists.xensource.com; Zhang, Xing Z
>> >Subject: changeset 16405: Add e100 NIC support.
>> >
>> >I see we've just added a completely new hardware driver to
>Xen's
>> >QEMU...
>> >
>>
>>http://xenbits.xensource.com/staging/xen-unstable.hg?rev/e
>c
>> >0bc82cebfd
>> >
>> >Please send this patch to upstream qemu-devel mailing list
>for
>> >review
>> >& inclusion so we don't have to carry this in Xen's QEMU
>> >forever....
>> >
>> >The commit message suggests this is primarily for
>windows/ia64.
>> >Does anyone
>> >have any info though on how it compares to the current rtl8139
>> >driver in
>> >terms of throughput ? ie would it be worth using for Linux
>guests
>> >too in
>> >preference to rtl8139, or is it only useful for the
>windows/ia64
>> >niche ?
>> >
>> >Regards,
>> >Dan.
>> >--
>> >|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1
>> >978 392 2496 -=|
>> >|=-           Perl modules:
>http://search.cpan.org/~danberr/
>> >-=|
>> >|=-               Projects: http://freshmeat.net/~danielpb/
>> >-=|
>> >|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF
>F742
>> >7D3B 9505  -=|
>>

Re: RE: changeset 16405: Add e100 NIC support.

[Daniel P. Berrange]

On Thu, Nov 22, 2007 at 12:09:59AM +0800, Zhang, Xing Z wrote:
> I don't read e1000 spec. it's an igbx card so I think it works with less port IO and MMIO access. This will benefit current QEMU
> device model. 
> Seems Longhorn released with no e100 driver, but e1000 driver
> should be included. Somebody implements an e1000 emulator is really appreciated.

There was a proof of concept e1000 driver posted to qemu-devel a few months
ago, but it doesn't seem to have been continued (at least not publically).
The code is in this post, but it needs much much more work stilll

http://www.mail-archive.com/qemu-devel@nongnu.org/msg12074.html

Regards,
Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|