diff options
Diffstat (limited to 'drivers/pci/iov.c')
| -rw-r--r-- | drivers/pci/iov.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index b2a448e19fe..3e5ab2bf6a5 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -706,6 +706,21 @@ irqreturn_t pci_sriov_migration(struct pci_dev *dev) } 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; |