在 2021/3/15 下午3:45, Zhu Lingshan 写道:
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static u32 ifcvf_vdpa_get_device_id(struct vdpa_device *vdpa_dev)
{
- return VIRTIO_ID_NET;
+ struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
+ u32 ret = -EOPNOTSUPP;
+
+ if (ifcvf_probed_virtio_net(vf))
+ ret = VIRTIO_ID_NET;
So the point is to simplify the future extension.
How about simply?
if (device_id>0x1040)
return devce_id - 0x1040;
else
return device_id;
Since I don't think you plan to introduce device whose vendor id is not 1AF4 and the subsys vendor/device id is not interesting to vDPA bus.
Thanks
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