Support matching on GRE key and present bits (C,K,S)
Example testpmd command could be:
testpmd>flow create 0 ingress group 1 pattern eth / ipv4 /
gre / gre_key value is 0x12345678 / end
actions rss queues 1 0 end / mark id 196 / end
Which will match GRE packet with k present bit set and key value is
0x12345678.
Signed-off-by: Xiaoyu Min <jackmin@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>