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Date: Thu, 14 Oct 2010 15:23:22 +0200
From: Avi Kivity <avi@redhat.com>
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Subject: Re: [Qemu-devel] Hitting 29 NIC limit
References: <C8DB8174.2FEBC%anjali@juniper.net> <4CB6388A.30006@codemonkey.ws>
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Anjali Kulkarni <anjali@juniper.net>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>

  On 10/14/2010 02:54 PM, Anthony Liguori wrote:
>>> The key is to make the virtio-net devices multifunction and to fill 
>>> out all 8 functions for each slot.
>>
>> This is unlikely to work right wrt pci hotplug.
>
>
> Yes.  Our hotplug design is based on devices..  This is wrong, it 
> should be based on bus-level concepts (like PCI slots).
>
>> If we want to support a large number of interfaces, we need true 
>> multiport cards.
>
> This magic here creates a multiport virtio-net card so I'm not really 
> sure what you're suggesting.  It would certainly be nice to make this 
> all more user friendly (and make hotplug work).
>

The big issue is to fix hotplug.

I don't see how we can make it user friendly, without making the 
ordinary case even more unfriendly.  Looks like we need yet another 
level of indirection here.

-- 
error compiling committee.c: too many arguments to function