| Message ID | 20210317094933.16417-8-lingshan.zhu@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | vDPA/ifcvf: enables Intel C5000X-PL virtio-net | expand |
在 2021/3/17 下午5:49, Zhu Lingshan 写道: > This commit deduces the VIRTIO device ID of a probed > device from its pdev device ids. > > Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> > --- > drivers/vdpa/ifcvf/ifcvf_base.h | 1 + > drivers/vdpa/ifcvf/ifcvf_main.c | 14 +++++++++++++- > 2 files changed, 14 insertions(+), 1 deletion(-) > > diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h > index f77239fc1644..b2eeb16b9c2c 100644 > --- a/drivers/vdpa/ifcvf/ifcvf_base.h > +++ b/drivers/vdpa/ifcvf/ifcvf_base.h > @@ -127,4 +127,5 @@ int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features); > u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid); > int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num); > struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw); > +int ifcvf_probed_virtio_net(struct ifcvf_hw *hw); > #endif /* _IFCVF_H_ */ > diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c > index ea93ea7fd5df..9fade400b5a4 100644 > --- a/drivers/vdpa/ifcvf/ifcvf_main.c > +++ b/drivers/vdpa/ifcvf/ifcvf_main.c > @@ -323,7 +323,19 @@ static u32 ifcvf_vdpa_get_generation(struct vdpa_device *vdpa_dev) > > static u32 ifcvf_vdpa_get_device_id(struct vdpa_device *vdpa_dev) > { > - return VIRTIO_ID_NET; > + struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev); > + struct pci_dev *pdev = adapter->pdev; > + u32 ret = -ENODEV; > + > + if (pdev->device < 0x1000 || pdev->device > 0x107f) > + return ret; > + > + if (pdev->device < 0x1040) > + ret = pdev->subsystem_device; > + else > + ret = pdev->device - 0x1040; > + > + return ret; > } It would be better to keep the comment. But anyway Acked-by: Jason Wang <jasowang@redhat.com> > > static u32 ifcvf_vdpa_get_vendor_id(struct vdpa_device *vdpa_dev)
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index f77239fc1644..b2eeb16b9c2c 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h @@ -127,4 +127,5 @@ int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features); u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid); int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num); struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw); +int ifcvf_probed_virtio_net(struct ifcvf_hw *hw); #endif /* _IFCVF_H_ */ diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index ea93ea7fd5df..9fade400b5a4 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -323,7 +323,19 @@ static u32 ifcvf_vdpa_get_generation(struct vdpa_device *vdpa_dev) static u32 ifcvf_vdpa_get_device_id(struct vdpa_device *vdpa_dev) { - return VIRTIO_ID_NET; + struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev); + struct pci_dev *pdev = adapter->pdev; + u32 ret = -ENODEV; + + if (pdev->device < 0x1000 || pdev->device > 0x107f) + return ret; + + if (pdev->device < 0x1040) + ret = pdev->subsystem_device; + else + ret = pdev->device - 0x1040; + + return ret; } static u32 ifcvf_vdpa_get_vendor_id(struct vdpa_device *vdpa_dev)
This commit deduces the VIRTIO device ID of a probed device from its pdev device ids. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> --- drivers/vdpa/ifcvf/ifcvf_base.h | 1 + drivers/vdpa/ifcvf/ifcvf_main.c | 14 +++++++++++++- 2 files changed, 14 insertions(+), 1 deletion(-)