Commit 50267196 authored Jun 20, 2013 by Mitch A Williams Committed by Jeff Kirsher Aug 22, 2013

igb: don't allow SR-IOV without MSI-X



MSI-X interrupts are required for SR-IOV operation. Check to make sure
they're enabled before allowing the user to turn on VFs.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

parent 7f90128e

drivers/net/ethernet/intel/igb/igb_main.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2436,6 +2436,11 @@ static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs)
		int err = 0;
		int i;

		if (!adapter->msix_entries) {
		err = -EPERM;
		goto out;
		}

		if (!num_vfs)
		goto out;
		else if (old_vfs && old_vfs == num_vfs)