fragmentation is possible (i.e., DF==0). Additionally, it complies RFC
6864 to process the IPv4 ID field.
-Currently, the GRO library provides GRO supports for TCP/IPv4 packets and
-VxLAN packets which contain an outer IPv4 header and an inner TCP/IPv4
-packet.
+Currently, the GRO library provides GRO supports for TCP/IPv4 and UDP/IPv4
+packets as well as VxLAN packets which contain an outer IPv4 header and an
+inner TCP/IPv4 or UDP/IPv4 packet.
Two Sets of API
---------------