xskgen

Try to saturate single NIC TX queue. Optionally use TX offloads to populate TX timestamp and TX checksum.

All UMEM chunks are pre-populated with the packet payload, so the cost of the userspace side is minimal. L4 protocol is always UDP.

Credits

The code is heavily based on the following files from Linux Kernel:

• tools/testing/selftests/bpf/xsk.{h,c} (Magnus Karlsson et all)
• tools/testing/selftests/bpf/xdp_hw_metadata.c (Stanislav Fomichev et all)