netinet/khelp/h_ertt.c

137 marked_packet_rtt(struct txseginfo *txsi, struct ertt *e_t, struct tcpcb *tp,
154 			e_t->markedpkt_rtt = tcp_ts_getticks() -
156 			e_t->bytes_tx_in_marked_rtt = e_t->bytes_tx_in_rtt +
159 			e_t->markedpkt_rtt = tcp_ts_getticks() -
161 			e_t->bytes_tx_in_marked_rtt = e_t->bytes_tx_in_rtt -
164 		e_t->marked_snd_cwnd = tp->snd_cwnd;
170 		e_t->flags &= ~ERTT_MEASUREMENT_IN_PROGRESS;
176 		e_t->flags |= ERTT_NEW_MEASUREMENT;
182 			e_t->flags |= ERTT_TSO_DISABLED;
198 	struct ertt *e_t;
211 	e_t = (struct ertt *)hdata;
230 		txsi = TAILQ_FIRST(&e_t->txsegi_q);
238 					marked_packet_rtt(txsi, e_t, tp,
242 				TAILQ_REMOVE(&e_t->txsegi_q, txsi, txsegi_lnk);
244 				txsi = TAILQ_FIRST(&e_t->txsegi_q);
255 					e_t->dlyack_rx +=
256 					    (e_t->dlyack_rx < DLYACK_SMOOTH) ?
261 					e_t->dlyack_rx +=
262 					    (e_t->dlyack_rx < DLYACK_SMOOTH) ?
266 					e_t->dlyack_rx -=
267 					    (e_t->dlyack_rx > 0) ? 1 : 0;
276 			if (e_t->timestamp_errors < MAX_TS_ERR &&
296 				if (!e_t->dlyack_rx && TSTMP_LT(rts, txsi->tx_ts))
310 						marked_packet_rtt(txsi, e_t, tp,
314 					TAILQ_REMOVE(&e_t->txsegi_q, txsi,
317 					txsi = TAILQ_FIRST(&e_t->txsegi_q);
329 					e_t->timestamp_errors++;
352 			if (!e_t->dlyack_rx || multiack || new_sacked_bytes) {
354 				e_t->rtt = tcp_ts_getticks() - txsi->tx_ts + 1;
356 				if (e_t->rtt < e_t->minrtt || e_t->minrtt == 0)
357 					e_t->minrtt = e_t->rtt;
359 				if (e_t->rtt > e_t->maxrtt || e_t->maxrtt == 0)
360 					e_t->maxrtt = e_t->rtt;
364 				marked_packet_rtt(txsi, e_t, tp,
405 			TAILQ_REMOVE(&e_t->txsegi_q, txsi, txsegi_lnk);
415 			marked_packet_rtt(txsi, e_t, tp,
432 	struct ertt *e_t;
444 	e_t = (struct ertt *)hdata;
463 			else if (e_t->flags & ERTT_TSO_DISABLED) {
465 				e_t->flags &= ~ERTT_TSO_DISABLED;
468 			if (e_t->flags & ERTT_MEASUREMENT_IN_PROGRESS) {
469 				e_t->bytes_tx_in_rtt += len;
472 				e_t->flags |= ERTT_MEASUREMENT_IN_PROGRESS;
473 				e_t->bytes_tx_in_rtt = len;
485 			TAILQ_INSERT_TAIL(&e_t->txsegi_q, txsi, txsegi_lnk);
514 	struct ertt *e_t;
516 	e_t = mem;
518 	TAILQ_INIT(&e_t->txsegi_q);
519 	e_t->timestamp_errors = 0;
520 	e_t->minrtt = 0;
521 	e_t->maxrtt = 0;
522 	e_t->rtt = 0;
523 	e_t->flags = 0;
524 	e_t->dlyack_rx = 0;
525 	e_t->bytes_tx_in_rtt = 0;
526 	e_t->markedpkt_rtt = 0;
534 	struct ertt *e_t;
537 	e_t = mem;
538 	txsi = TAILQ_FIRST(&e_t->txsegi_q);