diff options
| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2021-03-17 17:49:33 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-05-03 04:55:52 -0400 |
| commit | e8ef6124959a7c4004ef95b1b17cfa9b2ca582bd (patch) | |
| tree | d035d1891048ad15b1fdd37388bb850a7e360b80 /drivers/vdpa | |
| parent | 1d895a68085b28d098893570b024229aacc9a057 (diff) | |
| download | linux-e8ef6124959a7c4004ef95b1b17cfa9b2ca582bd.tar.bz2 | |
vDPA/ifcvf: deduce VIRTIO device ID from pdev ids
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>
Link: https://lore.kernel.org/r/20210317094933.16417-8-lingshan.zhu@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.h | 1 | ||||
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_main.c | 14 |
2 files changed, 14 insertions, 1 deletions
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 8bff4efbe749..a16753f1de5b 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) |