https://manpages.ubuntu.com/manpages/stonking/man9/isc_rxd_refill.9freebsd.html
Ubuntu Manpage: iflibtxrx - Device Dependent Transmit and Receive Functions
Device Dependent Transmit and Receive Functions
ubuntumanpagedevicedependenttransmit
https://manpages.ubuntu.com/manpages/stonking/man9/isc_txd_flush.9freebsd.html
Ubuntu Manpage: iflibtxrx - Device Dependent Transmit and Receive Functions
Device Dependent Transmit and Receive Functions
ubuntumanpagedevicedependenttransmit