diff options
| -rw-r--r-- | drivers/pci/iov.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index de4034ee0ef..e73bdae447c 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -286,7 +286,6 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) (!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial))) return -EINVAL; - pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, nr_virtfn); pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_OFFSET, &offset); pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_STRIDE, &stride); if (!offset || (nr_virtfn > 1 && !stride)) @@ -334,6 +333,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) return rc; } + pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, nr_virtfn); iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE; pci_cfg_access_lock(dev); pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl); @@ -368,6 +368,7 @@ failed: iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE); pci_cfg_access_lock(dev); pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl); + pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, 0); ssleep(1); pci_cfg_access_unlock(dev); @@ -401,6 +402,7 @@ static void sriov_disable(struct pci_dev *dev) sysfs_remove_link(&dev->dev.kobj, "dep_link"); iov->num_VFs = 0; + pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, 0); } static int sriov_init(struct pci_dev *dev, int pos) |