Function tcp_compute_pipe

freebsd/netinet/tcp_input.c:4013–4019

}

int
tcp_compute_pipe(struct tcpcb *tp)
{
	return (tp->snd_max - tp->snd_una +
		tp->sackhint.sack_bytes_rexmit -
		tp->sackhint.sacked_bytes);
}

uint32_t
tcp_compute_initwnd(uint32_t maxseg)