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;
350 	struct htcp *htcp_data;
353 	htcp_data = ccv->cc_data;
371 			CCV(ccv, snd_cwnd) = max(1, ((htcp_data->beta *
372 			    htcp_data->prev_cwnd / CCV(ccv, t_maxseg))
380 	struct htcp *htcp_data;
383 	htcp_data = ccv->cc_data;
397 	if (now < htcp_data->t_last_cong)
398 		htcp_data->t_last_cong = now - HTCP_DELTA_L;
400 	diff = now - htcp_data->t_last_cong - HTCP_DELTA_L;
417 				    htcp_data->beta) * alpha) >> HTCP_SHIFT);
434 		htcp_data->alpha = alpha;
441 	struct htcp *htcp_data;
443 	htcp_data = ccv->cc_data;
451 	if (V_htcp_adaptive_backoff && htcp_data->minrtt != TCPTV_SRTTBASE &&
452 	    htcp_data->maxrtt != TCPTV_SRTTBASE)
453 		htcp_data->beta = min(max(HTCP_MINBETA,
454 		    (htcp_data->minrtt << HTCP_SHIFT) / htcp_data->maxrtt),
457 		htcp_data->beta = HTCP_MINBETA;
467 	struct htcp *htcp_data;
469 	htcp_data = ccv->cc_data;
478 	if ((CCV(ccv, t_srtt) < htcp_data->minrtt ||
479 	    htcp_data->minrtt == TCPTV_SRTTBASE) &&
481 		htcp_data->minrtt = CCV(ccv, t_srtt);
487 	if (CCV(ccv, t_srtt) > htcp_data->maxrtt
489 		htcp_data->maxrtt = CCV(ccv, t_srtt);
498 	struct htcp *htcp_data;
500 	htcp_data = ccv->cc_data;
511 		CCV(ccv, snd_ssthresh) = (CCV(ccv, snd_cwnd) * htcp_data->beta)