Re: [virtio-comment] Re: [PATCH v18] virtio-net: support inner header hash

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

On Thu, Jun 22, 2023 at 12:32:33PM +0000, Parav Pandit wrote:
> Provisioning driver usually do not attach to the member device directly.
> This requires device reset, followed by reaching _DRIVER stage, querying features etc and config area.
> And unbinding it and second reset by member driver. Ugh.
> Provisioning driver also needs to get the state or capabilities even when member driver is already attached.
> So config space is not much a gain either.

Actually it's RO so you *can* read it without any issues:
- block guest access to status
- check DRIVER.
If set:
	- read features, config
If not set:
	- read features, config
	- reset

I am not saying it is elegant but then all of vdpa pile of
hacks is not elegant.

And I am all for building something better but we didn't
build it yet.

-- 
MST