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SubjectRe: [PATCH 5/6] vdpa: introduce virtio pci driver
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On 2020/6/8 下午5:45, 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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