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Date:	Mon, 14 Sep 2009 12:11:51 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Or Gerlitz <ogerlitz@...taire.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	herbert@...dor.apana.org.au
Subject: Re: [PATCH RFC] tun: export underlying socket

On Mon, Sep 14, 2009 at 11:17:14AM +0300, Or Gerlitz wrote:
> Michael S. Tsirkin wrote:
>> On Mon, Sep 14, 2009 at 11:07:25AM +0300, Or Gerlitz wrote:
>>   
>>> vhost injects packets into physical device, what is the use case of vhost injecting packets into the host network stack?
>>>     
>> The case where the user requires bridging, typically.
>>   
> So you want to support a scheme where someone wants to attach vhost to a  
> bridge? why not just telling these users to just set their vhost on top  
> of veth couple, such that one veth device is added to a bridge as  
> interface and a vhost instance is tied to the other veth device?
>
>
> Or.

That's already possible. However virtualization users are familiar with
configuring the tun device, and tun has grown virtualization-specific
extensions, so I don't see a reason not to accomodate these uses.

-- 
MST
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