TODO

build system
  - Explicitly link in DPDK libraries instead of using -ldpdk as a
    shortcut, to avoid interference from distributions which use
    --as-needed by default.

liburdma
  - Choose rte_mempool sizes dynamically, and choose maximum number of queue
    pairs and tx/rx ring size according to the rte_mempool size
  - Add static inlines to wrap all container_of()'s
  - Update flow director rules to match source *and* destination addresses
  - fclose(conf_file) in parse_config() error cleanup
  - Sleep on KNI interfaces until we actually get a packet
  - Always tell kernel about qp_state transitions

kmod
  - Dynamically register/unregister interfaces instead of using a static list
  - Clean up socket callbacks