ASAP2 Project for Open VSwitch hardware offload.

Starting from ConnectX-4 series of NICs, Mellanox supports accelerated virtual switching capability in server NIC hardware through the ASAP2 feature.With a pipeline-based programmable eSwitch built into the NIC, ConnectX-4/5 can handle a large portion of the packet processing operations in hardware.Built on top of these enhanced NIC hardware capabilities, ASAP2 provides a programmable, high-performance and highly efficient hardware forwarding plane that can work seamlessly with the SDN control plane.