Re: [Qemu-devel] Hitting 29 NIC limit

[Avi Kivity <avi@redhat.com>]

  On 10/14/2010 04:11 PM, Anthony Liguori wrote:
> On 10/14/2010 08:23 AM, Avi Kivity wrote:
>>  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.
>
> Yes, but this is entirely independent of multifunction devices.
>
> Today we shoe-horn hot remove into device_del.  Instead, we should 
> have explicit bus-level interfaces for hot remove.

I'm not saying multiplug is not the right way to approach this (it is).  
The only concern is to get hotplug right.

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