This is a note to let you know that I've just added the patch titled
igb: fix vf lookup
to the 3.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
igb-fix-vf-lookup.patch
and it can be found in the queue-3.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 0629292117572a60465f38cdedde2f8164c3df0b Mon Sep 17 00:00:00 2001
From: Greg Rose <[email protected]>
Date: Thu, 2 Feb 2012 23:51:43 +0000
Subject: igb: fix vf lookup
From: Greg Rose <[email protected]>
commit 0629292117572a60465f38cdedde2f8164c3df0b upstream.
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.
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]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ethernet/intel/igb/igb_main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4965,7 +4965,8 @@ static int igb_find_enabled_vfs(struct i
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,
Patches currently in stable-queue which might be from [email protected]
are
queue-3.2/ixgbe-fix-vf-lookup.patch
queue-3.2/igb-fix-vf-lookup.patch
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