Re: [PATCH 5/6] vdpa: introduce virtio pci driver

[Jason Wang]

On 2020/6/8 äå5:45, Michael S. Tsirkin wrote:
> On Mon, Jun 08, 2020 at 05:43:58PM +0800, Jason Wang wrote:
> > > > Looking at
> > > > pci_match_one_device() it checks both subvendor and subdevice there.
> > > >
> > > > Thanks
> > > But IIUC there is no guarantee that driver with a specific subvendor
> > > matches in presence of a generic one.
> > > So either IFC or virtio pci can win, whichever binds first.
> >
> > I'm not sure I get there. But I try manually bind IFCVF to qemu's
> > virtio-net-pci, and it fails.
> >
> > Thanks
> Right but the reverse can happen: virtio-net can bind to IFCVF first.


That's kind of expected. The PF is expected to be bound to virtio-pci to 
create VF via sysfs.

Thanks



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