Re: FYI: fixing Vista networking with rtl8139 + KVM

Avi Kivity
2007-09-27T09:56:35Z

Laurent Vivier wrote:
> Avi Kivity wrote:
>
>> Farkas Levente wrote:
>>
>>> Daniel P. Berrange wrote:
>>>
>>>
>>>> A Fedora user reported that Vista networking isn't working with KVM[1] and
>>>> pointed to the Wiki
>>>>
>>>> http://kvm.qumranet.com/kvmwiki/Vista_Networking_Workaround
>>>>
>>>> FYI, a patch from Xen was merged into upstream QEMU to fix this problem
>>>> with rtl8139 a week or two back and works nicely with KVM+Vista...
>>>>
>>>> http://www.mail-archive.com/qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org/msg11365.html
>>>>
>>>> ..avoiding need for messing around with ne2k drivers as mentioned in the wiki
>>>>
>>>> Regards,
>>>> Dan.
>>>>
>>>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=308201
>>>>
>>>>
>>> does this means that in general use the ne2k driver is a better choice?
>>> anyway is there a suggested network driver for the guests?
>>>
>>>
>>>
>> No, it means I need to merge qemu-cvs.
>>
>> rtl8139 performs faster than ne2000.
>>
>
> But adding CRC computing in RTL839 should have some impacts on performance.
>
>

It's probably negligible since the copy has placed the packet in the cache.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.