netinet/cc/cc_htcp.c

192 	struct htcp *htcp_data;
194 	htcp_data = ccv->cc_data;
213 		if (htcp_data->alpha == 1 ||
219 				CCV(ccv, snd_cwnd) += htcp_data->alpha *
228 				CCV(ccv, snd_cwnd) += (((htcp_data->alpha <<
247 	struct htcp *htcp_data;
249 	htcp_data = malloc(sizeof(struct htcp), M_HTCP, M_NOWAIT);
251 	if (htcp_data == NULL)
255 	htcp_data->alpha = HTCP_INIT_ALPHA;
256 	htcp_data->beta = HTCP_MINBETA;
257 	htcp_data->maxrtt = TCPTV_SRTTBASE;
258 	htcp_data->minrtt = TCPTV_SRTTBASE;
259 	htcp_data->prev_cwnd = 0;
260 	htcp_data->t_last_cong = ticks;
262 	ccv->cc_data = htcp_data;
273 	struct htcp *htcp_data;
275 	htcp_data = ccv->cc_data;
286 				htcp_data->maxrtt = (htcp_data->minrtt +
287 				    (htcp_data->maxrtt - htcp_data->minrtt) *
290 				htcp_data->t_last_cong = ticks;
291 				htcp_data->prev_cwnd = CCV(ccv, snd_cwnd);
303 			htcp_data->maxrtt = (htcp_data->minrtt + (htcp_data->maxrtt -
304 			    htcp_data->minrtt) * 95) / 100;
307 			htcp_data->t_last_cong = ticks;
308 			htcp_data->prev_cwnd = CCV(ccv, snd_cwnd);
322 			htcp_data->t_last_cong = ticks;
349 	struct htcp *htcp_data;
351 	htcp_data = ccv->cc_data;
366 			CCV(ccv, snd_cwnd) = max(1, ((htcp_data->beta *
367 			    htcp_data->prev_cwnd / CCV(ccv, t_maxseg))
375 	struct htcp *htcp_data;
378 	htcp_data = ccv->cc_data;
392 	if (now < htcp_data->t_last_cong)
393 		htcp_data->t_last_cong = now - HTCP_DELTA_L;
395 	diff = now - htcp_data->t_last_cong - HTCP_DELTA_L;
412 				    htcp_data->beta) * alpha) >> HTCP_SHIFT);
429 		htcp_data->alpha = alpha;
436 	struct htcp *htcp_data;
438 	htcp_data = ccv->cc_data;
446 	if (V_htcp_adaptive_backoff && htcp_data->minrtt != TCPTV_SRTTBASE &&
447 	    htcp_data->maxrtt != TCPTV_SRTTBASE)
448 		htcp_data->beta = min(max(HTCP_MINBETA,
449 		    (htcp_data->minrtt << HTCP_SHIFT) / htcp_data->maxrtt),
452 		htcp_data->beta = HTCP_MINBETA;
462 	struct htcp *htcp_data;
464 	htcp_data = ccv->cc_data;
473 	if ((CCV(ccv, t_srtt) < htcp_data->minrtt ||
474 	    htcp_data->minrtt == TCPTV_SRTTBASE) &&
476 		htcp_data->minrtt = CCV(ccv, t_srtt);
482 	if (CCV(ccv, t_srtt) > htcp_data->maxrtt
484 		htcp_data->maxrtt = CCV(ccv, t_srtt);
493 	struct htcp *htcp_data;
495 	htcp_data = ccv->cc_data;
506 		CCV(ccv, snd_ssthresh) = (CCV(ccv, snd_cwnd) * htcp_data->beta)