* Set skb protocol based on contents of packet. I have observed this is
necessary to get actual protocol of a packet when it is injected into an
internal device e.g. by libnet in which case skb protocol will be set to
ETH_ALL.
* Set the mac_len which has been observed to not be set up correctly when
an ARP packet is generated and sent via an openvswitch bridge.
My test case is a scenario where there are two open vswtich bridges.
One outputs to a tunnel port which egresses on the other.
The motivation for this is that support for outputting to layer 3 (non-tap)
GRE tunnels as implemented by a subsequent patch depends on protocol and
mac_len being set correctly on receive.
Signed-off-by: Simon Horman <simon.hor...@netronome.com>
---
v11
* Do not set mac_len.
Instead of relying on mac_len follow-up patches now
use skb_unset_mac_header()
v10
* Set mac_len
v9
* New patch
---
net/openvswitch/vport-internal_dev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/openvswitch/vport-internal_dev.c
b/net/openvswitch/vport-internal_dev.c
index 434e04c3a189..32d8e94d9bff 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -48,6 +48,9 @@ static int internal_dev_xmit(struct sk_buff *skb, struct
net_device *netdev)
{
int len, err;
+ skb->protocol = eth_type_trans(skb, netdev);
+ skb_push(skb, ETH_HLEN);
+
len = skb->len;
rcu_read_lock();
err = ovs_vport_receive(internal_dev_priv(netdev)->vport, skb, NULL);
--
2.7.0.rc3.207.g0ac5344
