This is a note to let you know that I've just added the patch titled
ixgbe: 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:
ixgbe-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 a4b08329c74985e5cc3a44b6d2b2c59444ed8079 Mon Sep 17 00:00:00 2001
From: Greg Rose <[email protected]>
Date: Fri, 3 Feb 2012 00:54:13 +0000
Subject: ixgbe: fix vf lookup
From: Greg Rose <[email protected]>
commit a4b08329c74985e5cc3a44b6d2b2c59444ed8079 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 bug exists in 3.2 stable as well as 3.3 release candidates.
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/ixgbe/ixgbe_sriov.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -67,7 +67,8 @@ static int ixgbe_find_enabled_vfs(struct
vf_devfn = pdev->devfn + 0x80;
pvfdev = pci_get_device(IXGBE_INTEL_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 += 2;
pvfdev = pci_get_device(IXGBE_INTEL_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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