[virtio-dev] Re: [virtio-comment] [RFC PATCH] admin-queue: bind the group member to the device

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Jun 27, 2023 at 04:23:05PM +0800, Xuan Zhuo wrote:
> So, this is how I understand the process of creating vf:
> 
> 1. Create a PCI VF, at this time there may be no backend virtio device, or there
>     is only a default backend. It does not fully meet our expectations.
> 2. Create device or migrate device
> 3. Bind the backend virtio device to the vf

I can see this making sense as a feature bit that says VFs are not
initialized by default and must first be setup through an admin command.
This will likely need to be a feature bit because it's changing
behaviour outside of admin commands.

Then, we can have:

	ADMIN_SETUP VF#
	ADMIN_CLEANUP VF#

I like this because this generalizes CREATE/DESTROY that SIOV guys proposed.


Why do we need an id as a level of indirection though? What is wrong
with just using VF# directly?



-- 
MST


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