This is a note to let you know that I've just added the patch titled
be2net: Fix to avoid hardware workaround when not needed
to the 3.10-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:
be2net-fix-to-avoid-hardware-workaround-when-not-needed.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b88b4272651cb4ee68c7a32cfc256fd4e8fdf735 Mon Sep 17 00:00:00 2001
From: Sarveshwar Bandi <sarveshwar.bandi@xxxxxxxxxx>
Date: Tue, 16 Jul 2013 12:44:02 +0530
Subject: be2net: Fix to avoid hardware workaround when not needed
From: Sarveshwar Bandi <sarveshwar.bandi@xxxxxxxxxx>
[ Upstream commit 52fe29e4bb614367c108b717c6d7fe5953eb7af3 ]
Hardware workaround requesting hardware to skip vlan insertion is necessary
only when umc or qnq is enabled. Enabling this workaround in other scenarios
could cause controller to stall.
Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/emulex/benet/be_main.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -782,16 +782,22 @@ static struct sk_buff *be_insert_vlan_in
if (vlan_tx_tag_present(skb))
vlan_tag = be_get_tx_vlan_tag(adapter, skb);
- else if (qnq_async_evt_rcvd(adapter) && adapter->pvid)
- vlan_tag = adapter->pvid;
+
+ if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
+ if (!vlan_tag)
+ vlan_tag = adapter->pvid;
+ /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
+ * skip VLAN insertion
+ */
+ if (skip_hw_vlan)
+ *skip_hw_vlan = true;
+ }
if (vlan_tag) {
skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
if (unlikely(!skb))
return skb;
skb->vlan_tci = 0;
- if (skip_hw_vlan)
- *skip_hw_vlan = true;
}
/* Insert the outer VLAN, if any */
Patches currently in stable-queue which might be from sarveshwar.bandi@xxxxxxxxxx are
queue-3.10/be2net-fix-to-avoid-hardware-workaround-when-not-needed.patch
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