diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/vxge/vxge-main.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c index 70c327910f0..9c68c60f27d 100644 --- a/drivers/net/vxge/vxge-main.c +++ b/drivers/net/vxge/vxge-main.c @@ -4182,6 +4182,20 @@ static int vxge_probe_fw_update(struct vxgedev *vdev) return ret; } +static int __devinit is_sriov_initialized(struct pci_dev *pdev) +{ + int pos; + u16 ctrl; + + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); + if (pos) { + pci_read_config_word(pdev, pos + PCI_SRIOV_CTRL, &ctrl); + if (ctrl & PCI_SRIOV_CTRL_VFE) + return 1; + } + return 0; +} + /** * vxge_probe * @pdev : structure containing the PCI related information of the device. @@ -4370,14 +4384,13 @@ vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre) num_vfs = vxge_get_num_vfs(function_mode) - 1; /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */ - if (is_sriov(function_mode) && (max_config_dev > 1) && - (ll_config->intr_type != INTA) && - (is_privileged == VXGE_HW_OK)) { - ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs) - ? (max_config_dev - 1) : num_vfs); + if (is_sriov(function_mode) && !is_sriov_initialized(pdev) && + (ll_config->intr_type != INTA)) { + ret = pci_enable_sriov(pdev, num_vfs); if (ret) vxge_debug_ll_config(VXGE_ERR, "Failed in enabling SRIOV mode: %d\n", ret); + /* No need to fail out, as an error here is non-fatal */ } /* @@ -4673,8 +4686,6 @@ static void __devexit vxge_remove(struct pci_dev *pdev) iounmap(vdev->bar0); - pci_disable_sriov(pdev); - /* we are safe to free it now */ free_netdev(dev); |