Re: find_vqs operation starting at arbitrary index

[Rusty Russell <rusty@rustcorp.com.au>]

On Mon, 1 Jun 2009 05:33:48 pm Amit Shah wrote:
> Hello,
>
> The recent find_vqs operation doesn't allow for a vq to be found at an
> arbitrary location; it's meant to be called once at startup to find all
> possible queues and never called again.
>
> This doesn't work for devices which can have queues hot-plugged at
> run-time. This can be made to work by passing the 'start_index' value as
> was done earlier for find_vq, but I doubt something like the following
> will work. The MSI vectors might need some changing as well.

There's a fundamental conflict here: find_vqs was added so the PCI MSI code 
knows exactly how many virtqueues there are.

So you'll need to sort this out with Michael...

Thanks,
Rusty.