diff options
Diffstat (limited to 'drivers/infiniband/hw/usnic/usnic_ib_main.c')
| -rw-r--r-- | drivers/infiniband/hw/usnic/usnic_ib_main.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c index d346dd48e731..46653ad56f5a 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c @@ -534,6 +534,11 @@ static int usnic_ib_pci_probe(struct pci_dev *pdev, struct usnic_ib_vf *vf; enum usnic_vnic_res_type res_type; + if (!device_iommu_mapped(&pdev->dev)) { + usnic_err("IOMMU required but not present or enabled. USNIC QPs will not function w/o enabling IOMMU\n"); + return -EPERM; + } + vf = kzalloc(sizeof(*vf), GFP_KERNEL); if (!vf) return -ENOMEM; @@ -642,12 +647,6 @@ static int __init usnic_ib_init(void) printk_once(KERN_INFO "%s", usnic_version); - err = usnic_uiom_init(DRV_NAME); - if (err) { - usnic_err("Unable to initialize umem with err %d\n", err); - return err; - } - err = pci_register_driver(&usnic_ib_pci_driver); if (err) { usnic_err("Unable to register with PCI\n"); |