Patch "be2net: Fix offload features for Q-in-Q packets" has been added to the 4.9-stable tree

Patch "be2net: Fix offload features for Q-in-Q packets" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    be2net: Fix offload features for Q-in-Q packets

to the 4.9-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-offload-features-for-q-in-q-packets.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Wed May 31 09:13:34 JST 2017
From: Vlad Yasevich <vyasevich@gmail.com>
Date: Tue, 23 May 2017 13:38:42 -0400
Subject: be2net: Fix offload features for Q-in-Q packets

From: Vlad Yasevich <vyasevich@gmail.com>


[ Upstream commit cc6e9de62a7f84c9293a2ea41bc412b55bb46e85 ]

At least some of the be2net cards do not seem to be capabled
of performing checksum offload computions on Q-in-Q packets.
In these case, the recevied checksum on the remote is invalid
and TCP syn packets are dropped.

This patch adds a call to check disbled acceleration features
on Q-in-Q tagged traffic.

CC: Sathya Perla <sathya.perla@broadcom.com>
CC: Ajit Khaparde <ajit.khaparde@broadcom.com>
CC: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
CC: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/emulex/benet/be_main.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -5144,9 +5144,11 @@ static netdev_features_t be_features_che
 	struct be_adapter *adapter = netdev_priv(dev);
 	u8 l4_hdr = 0;
 
-	/* The code below restricts offload features for some tunneled packets.
+	/* The code below restricts offload features for some tunneled and
+	 * Q-in-Q packets.
 	 * Offload features for normal (non tunnel) packets are unchanged.
 	 */
+	features = vlan_features_check(skb, features);
 	if (!skb->encapsulation ||
 	    !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
 		return features;


Patches currently in stable-queue which might be from vyasevich@gmail.com are

queue-4.9/vlan-fix-tcp-checksum-offloads-in-q-in-q-vlans.patch
queue-4.9/be2net-fix-offload-features-for-q-in-q-packets.patch
queue-4.9/virtio-net-enable-tso-checksum-offloads-for-q-in-q-vlans.patch
queue-4.9/sctp-fix-icmp-processing-if-skb-is-non-linear.patch