diff options
Diffstat (limited to 'drivers/pci/iov.c')
| -rw-r--r-- | drivers/pci/iov.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index d0d73dbbd5ca..c5f3cd4ed766 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -575,6 +575,22 @@ void pci_iov_release(struct pci_dev *dev) } /** + * pci_iov_remove - clean up SR-IOV state after PF driver is detached + * @dev: the PCI device + */ +void pci_iov_remove(struct pci_dev *dev) +{ + struct pci_sriov *iov = dev->sriov; + + if (!dev->is_physfn) + return; + + iov->driver_max_VFs = iov->total_VFs; + if (iov->num_VFs) + pci_warn(dev, "driver left SR-IOV enabled after remove\n"); +} + +/** * pci_iov_update_resource - update a VF BAR * @dev: the PCI device * @resno: the resource number @@ -802,15 +818,15 @@ int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs) { if (!dev->is_physfn) return -ENOSYS; + if (numvfs > dev->sriov->total_VFs) return -EINVAL; /* Shouldn't change if VFs already enabled */ if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE) return -EBUSY; - else - dev->sriov->driver_max_VFs = numvfs; + dev->sriov->driver_max_VFs = numvfs; return 0; } EXPORT_SYMBOL_GPL(pci_sriov_set_totalvfs); |