FAQ: Expand on how one would implement VLAN handling via flows.

Signed-off-by: Ben Pfaff <blp@nicira.com>
FAQ: Fix typo (doubled "later").

Signed-off-by: Ben Pfaff <blp@nicira.com>
packet: Correctly set ethertype in pop_mpls()

The ethertype should be set before resetting l2_5 in order
for the packet to be updated correctly.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
odp-util: commit_set_nw_action: use flow's innermost dl_type

Use the innermost dl_type when decoding L3 and L4 data from a packet.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
packet: packet_get_tcp_flags: use flow's innermost dl_type

Use the innermost dl_type when decoding L3 and L4 data from a packet.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
datapath: adjust skb_gso_segment() for calling in rx path

skb_gso_segment() is almost always called in tx path,
except for openvswitch. It calls this function when
it receives the packet and tries to queue it to user-space.
In this special case, the ->ip_summed check inside
skb_gso_segment() is no longer true, as ->ip_summed value
has different meanings on rx path.

This patch adjusts skb_gso_segment() so that we can at least
avoid such warnings on checksum.

Cc: Jesse Gross <jesse@nicira.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[jesse: backport to kernels before 3.9 and add to tunnel.c]
Signed-off-by: Jesse Gross <jesse@nicira.com>