diff options
| author | Greg Rose <[email protected]> | 2012-02-02 23:51:43 +0000 |
|---|---|---|
| committer | Jeff Kirsher <[email protected]> | 2012-02-09 01:24:29 -0800 |
| commit | 0629292117572a60465f38cdedde2f8164c3df0b (patch) | |
| tree | ad9cf86ad892b17b2d2f27e0bce7ae9a09faa857 | |
| parent | b868179c47e9e8eadcd04c1f3105998e528988a3 (diff) | |
igb: fix vf lookup
Recent addition of code to find already allocated VFs failed to take
account that systems with 2 or more multi-port SR-IOV capable controllers
might have already enabled VFs. Make sure that the VFs the function is
finding are actually subordinate to the particular instance of the adapter
that is looking for them and not subordinate to some device that has
previously enabled SR-IOV.
This is applicable to 3.2+ kernels.
CC: [email protected]
Reported-by: David Ahern <[email protected]>
Signed-off-by: Greg Rose <[email protected]>
Tested-by: Robert E Garrett <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index e91d73c8aa4e..94be6c32fa7d 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -5012,7 +5012,8 @@ static int igb_find_enabled_vfs(struct igb_adapter *adapter) vf_devfn = pdev->devfn + 0x80; pvfdev = pci_get_device(hw->vendor_id, device_id, NULL); while (pvfdev) { - if (pvfdev->devfn == vf_devfn) + if (pvfdev->devfn == vf_devfn && + (pvfdev->bus->number >= pdev->bus->number)) vfs_found++; vf_devfn += vf_stride; pvfdev = pci_get_device(hw->vendor_id, |