}
EXPORT_SYMBOL_GPL(pci_sriov_migration);
+/**
+ * pci_num_vf - return number of VFs associated with a PF device_release_driver
+ * @dev: the PCI device
+ *
+ * Returns number of VFs, or 0 if SR-IOV is not enabled.
+ */
+int pci_num_vf(struct pci_dev *dev)
+{
+ if (!dev || !dev->is_physfn)
+ return 0;
+ else
+ return dev->sriov->nr_virtfn;
+}
+EXPORT_SYMBOL_GPL(pci_num_vf);
+
static int ats_alloc_one(struct pci_dev *dev, int ps)
{
int pos;