- if (tp->snd_cwnd <= tp->snd_ssthresh) {
- /* RFC3742: limited slow start
- * the window is increased by 1/K MSS for each arriving ACK,
- * for K = int(cwnd/(0.5 max_ssthresh))
- */
- if (max_ssthresh > 0 && tp->snd_cwnd > max_ssthresh) {
- u32 k = max(tp->snd_cwnd / (max_ssthresh >> 1), 1U);
- if (++tp->snd_cwnd_cnt >= k) {
- if (tp->snd_cwnd < tp->snd_cwnd_clamp)
- tp->snd_cwnd++;
- tp->snd_cwnd_cnt = 0;
- }
- } else {
- if (tp->snd_cwnd < tp->snd_cwnd_clamp)
- tp->snd_cwnd++;
- }
- } else {