ath_rate/sample/sample.c

85  * This file is an implementation of the SampleRate algorithm
174     struct ath_node *an, uint8_t rix0, int is_aggr)
178 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
182 	int is_ht40 = (an->an_node.ni_chw == 40);
282 ath_rate_node_init(struct ath_softc *sc, struct ath_node *an)
288 ath_rate_node_cleanup(struct ath_softc *sc, struct ath_node *an)
314 pick_best_rate(struct ath_node *an, const HAL_RATE_TABLE *rt,
317 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
330 		if ((an->an_node.ni_flags & IEEE80211_NODE_HT) &&
359 		if (an->an_node.ni_flags & IEEE80211_NODE_HT) {
363 			IEEE80211_NOTE(an->an_node.ni_vap,
365 			    &an->an_node,
386 		if (! (an->an_node.ni_flags & IEEE80211_NODE_HT)) {
399 		if (an->an_node.ni_flags & IEEE80211_NODE_HT) {
414 pick_sample_rate(struct sample_softc *ssc , struct ath_node *an,
419 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
445 		 * non-MCS rates when speaking to an MCS node.
460 		if ((an->an_node.ni_flags & IEEE80211_NODE_HT) &&
491 		if (an->an_node.ni_flags & IEEE80211_NODE_HT) {
505 		if (! (an->an_node.ni_flags & IEEE80211_NODE_HT)) {
549 	struct ath_node *an = ATH_NODE(ni);
551 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
571 ath_rate_pick_seed_rate_legacy(struct ath_softc *sc, struct ath_node *an,
579 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
612 ath_rate_pick_seed_rate_ht(struct ath_softc *sc, struct ath_node *an,
620 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
659 ath_rate_findrate(struct ath_softc *sc, struct ath_node *an,
667 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
676 	ath_rate_update_static_rix(sc, &an->an_node);
702 		max_pkt_len = ath_rate_sample_find_min_pktlength(sc, an,
718 	best_rix = pick_best_rate(an, rt, size_bin, !mrr);
725 	max_pkt_len = ath_rate_sample_find_min_pktlength(sc, an, best_rix,
750 		rix = pick_sample_rate(ssc, an, rt, size_bin);
751 		IEEE80211_NOTE(an->an_node.ni_vap, IEEE80211_MSG_RATECTL,
752 		     &an->an_node, "att %d sample_tt %d size %u "
772 			if (an->an_node.ni_flags & IEEE80211_NODE_HT)
774 				    ath_rate_pick_seed_rate_ht(sc, an, frameLen);
777 				    ath_rate_pick_seed_rate_legacy(sc, an, frameLen);
780 			IEEE80211_NOTE(an->an_node.ni_vap,
781 			    IEEE80211_MSG_RATECTL, &an->an_node,
786 			IEEE80211_NOTE(an->an_node.ni_vap,
787 			    IEEE80211_MSG_RATECTL, &an->an_node,
791 		} else if ((! (an->an_node.ni_flags & IEEE80211_NODE_HT)) &&
794 			IEEE80211_NOTE(an->an_node.ni_vap,
795 			    IEEE80211_MSG_RATECTL, &an->an_node,
800 		} else if ((an->an_node.ni_flags & IEEE80211_NODE_HT)) {
816 				IEEE80211_NOTE(an->an_node.ni_vap,
817 				    IEEE80211_MSG_RATECTL, &an->an_node,
832 				IEEE80211_NOTE(an->an_node.ni_vap,
834 				    &an->an_node,
857 			an->an_node.ni_txrate =
897 ath_rate_getxtxrates(struct ath_softc *sc, struct ath_node *an,
900 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
925 ath_rate_setupxtxdesc(struct ath_softc *sc, struct ath_node *an,
928 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
962 update_stats(struct ath_softc *sc, struct ath_node *an,
968 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
976 	int is_ht40 = (an->an_node.ni_chw == 40);
1060 	IEEE80211_NOTE(an->an_node.ni_vap, IEEE80211_MSG_RATECTL,
1061 	   &an->an_node,
1091 ath_rate_tx_complete(struct ath_softc *sc, struct ath_node *an,
1096 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
1149 		IEEE80211_NOTE(an->an_node.ni_vap, IEEE80211_MSG_RATECTL,
1150 		    &an->an_node,
1174 		IEEE80211_NOTE(an->an_node.ni_vap, IEEE80211_MSG_RATECTL,
1175 		     &an->an_node, "%s: size %d (%d bytes) %s rate/short/long %d %s/%d/%d nframes/nbad [%d/%d]",
1182 		update_stats(sc, an, frame_size,
1195 		IEEE80211_NOTE(an->an_node.ni_vap, IEEE80211_MSG_RATECTL,
1196 		    &an->an_node,
1227 			update_stats(sc, an, frame_size,
1236 			update_stats(sc, an, frame_size,
1245 			update_stats(sc, an, frame_size,
1254 			update_stats(sc, an, frame_size,
1264 ath_rate_newassoc(struct ath_softc *sc, struct ath_node *an, int isnew)
1267 		ath_rate_ctl_reset(sc, &an->an_node);
1271 ath_rate_update_rx_rssi(struct ath_softc *sc, struct ath_node *an, int rssi)
1299 	struct ath_node *an = ATH_NODE(ni);
1300 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
1429 ath_rate_fetch_node_stats(struct ath_softc *sc, struct ath_node *an,
1432 	struct sample_node *sn = ATH_NODE_SAMPLE(an);
1439 	ATH_NODE_LOCK_ASSERT(an);