223 minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi);
285 minstrel_ht_get_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,  in minstrel_ht_get_stats()  argument
304 		if (!(mi->groups[group].supported & BIT(idx)))  in minstrel_ht_get_stats()
307 	return &mi->groups[group].rates[idx];  in minstrel_ht_get_stats()
311 minstrel_get_ratestats(struct minstrel_ht_sta *mi, int index)  in minstrel_get_ratestats()  argument
313 	return &mi->groups[index / MCS_GROUP_RATES].rates[index % MCS_GROUP_RATES];  in minstrel_get_ratestats()
321 minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,  in minstrel_ht_get_tp_avg()  argument
331 		nsecs = 1000 * mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);  in minstrel_ht_get_tp_avg()
355 minstrel_ht_sort_best_tp_rates(struct minstrel_ht_sta *mi, u16 index,  in minstrel_ht_sort_best_tp_rates()  argument
364 	cur_prob = mi->groups[cur_group].rates[cur_idx].prob_ewma;  in minstrel_ht_sort_best_tp_rates()
365 	cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx, cur_prob);  in minstrel_ht_sort_best_tp_rates()
370 		tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;  in minstrel_ht_sort_best_tp_rates()
371 		tmp_tp_avg = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx,  in minstrel_ht_sort_best_tp_rates()
391 minstrel_ht_set_best_prob_rate(struct minstrel_ht_sta *mi, u16 index)  in minstrel_ht_set_best_prob_rate()  argument
402 	mg = &mi->groups[index / MCS_GROUP_RATES];  in minstrel_ht_set_best_prob_rate()
405 	tmp_group = mi->max_prob_rate / MCS_GROUP_RATES;  in minstrel_ht_set_best_prob_rate()
406 	tmp_idx = mi->max_prob_rate % MCS_GROUP_RATES;  in minstrel_ht_set_best_prob_rate()
407 	tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;  in minstrel_ht_set_best_prob_rate()
408 	tmp_tp_avg = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob);  in minstrel_ht_set_best_prob_rate()
412 	max_tp_group = mi->max_tp_rate[0] / MCS_GROUP_RATES;  in minstrel_ht_set_best_prob_rate()
418 		cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx,  in minstrel_ht_set_best_prob_rate()
421 			mi->max_prob_rate = index;  in minstrel_ht_set_best_prob_rate()
425 		max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_ewma;  in minstrel_ht_set_best_prob_rate()
426 		max_gpr_tp_avg = minstrel_ht_get_tp_avg(mi, max_gpr_group,  in minstrel_ht_set_best_prob_rate()
433 			mi->max_prob_rate = index;  in minstrel_ht_set_best_prob_rate()
447 minstrel_ht_assign_best_tp_rates(struct minstrel_ht_sta *mi,  in minstrel_ht_assign_best_tp_rates()  argument
456 	tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;  in minstrel_ht_assign_best_tp_rates()
457 	tmp_cck_tp = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob);  in minstrel_ht_assign_best_tp_rates()
461 	tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;  in minstrel_ht_assign_best_tp_rates()
462 	tmp_mcs_tp = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob);  in minstrel_ht_assign_best_tp_rates()
466 			minstrel_ht_sort_best_tp_rates(mi, tmp_cck_tp_rate[i],  in minstrel_ht_assign_best_tp_rates()
478 minstrel_ht_prob_rate_reduce_streams(struct minstrel_ht_sta *mi)  in minstrel_ht_prob_rate_reduce_streams()  argument
484 	tmp_max_streams = minstrel_mcs_groups[mi->max_tp_rate[0] /  in minstrel_ht_prob_rate_reduce_streams()
487 		mg = &mi->groups[group];  in minstrel_ht_prob_rate_reduce_streams()
492 		tmp_prob = mi->groups[group].rates[tmp_idx].prob_ewma;  in minstrel_ht_prob_rate_reduce_streams()
494 		if (tmp_tp < minstrel_ht_get_tp_avg(mi, group, tmp_idx, tmp_prob) &&  in minstrel_ht_prob_rate_reduce_streams()
496 				mi->max_prob_rate = mg->max_group_prob_rate;  in minstrel_ht_prob_rate_reduce_streams()
497 				tmp_tp = minstrel_ht_get_tp_avg(mi, group,  in minstrel_ht_prob_rate_reduce_streams()
514 minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)  in minstrel_ht_update_stats()  argument
522 	if (mi->ampdu_packets > 0) {  in minstrel_ht_update_stats()
523 		mi->avg_ampdu_len = minstrel_ewma(mi->avg_ampdu_len,  in minstrel_ht_update_stats()
524 			MINSTREL_FRAC(mi->ampdu_len, mi->ampdu_packets), EWMA_LEVEL);  in minstrel_ht_update_stats()
525 		mi->ampdu_len = 0;  in minstrel_ht_update_stats()
526 		mi->ampdu_packets = 0;  in minstrel_ht_update_stats()
529 	mi->sample_slow = 0;  in minstrel_ht_update_stats()
530 	mi->sample_count = 0;  in minstrel_ht_update_stats()
541 		mg = &mi->groups[group];  in minstrel_ht_update_stats()
545 		mi->sample_count++;  in minstrel_ht_update_stats()
562 			if (minstrel_ht_get_tp_avg(mi, group, i, cur_prob) == 0)  in minstrel_ht_update_stats()
567 				minstrel_ht_sort_best_tp_rates(mi, index,  in minstrel_ht_update_stats()
570 				minstrel_ht_sort_best_tp_rates(mi, index,  in minstrel_ht_update_stats()
575 			minstrel_ht_sort_best_tp_rates(mi, index,  in minstrel_ht_update_stats()
579 			minstrel_ht_set_best_prob_rate(mi, index);  in minstrel_ht_update_stats()
587 	minstrel_ht_assign_best_tp_rates(mi, tmp_mcs_tp_rate, tmp_cck_tp_rate);  in minstrel_ht_update_stats()
588 	memcpy(mi->max_tp_rate, tmp_mcs_tp_rate, sizeof(mi->max_tp_rate));  in minstrel_ht_update_stats()
591 	minstrel_ht_prob_rate_reduce_streams(mi);  in minstrel_ht_update_stats()
594 	mi->sample_count *= 8;  in minstrel_ht_update_stats()
600 			mi->max_tp_rate[i] = mp->fixed_rate_idx;  in minstrel_ht_update_stats()
601 		mi->max_prob_rate = mp->fixed_rate_idx;  in minstrel_ht_update_stats()
606 	mi->last_stats_update = jiffies;  in minstrel_ht_update_stats()
629 minstrel_set_next_sample_idx(struct minstrel_ht_sta *mi)  in minstrel_set_next_sample_idx()  argument
634 		mi->sample_group++;  in minstrel_set_next_sample_idx()
635 		mi->sample_group %= ARRAY_SIZE(minstrel_mcs_groups);  in minstrel_set_next_sample_idx()
636 		mg = &mi->groups[mi->sample_group];  in minstrel_set_next_sample_idx()
651 minstrel_downgrade_rate(struct minstrel_ht_sta *mi, u16 *idx, bool primary)  in minstrel_downgrade_rate()  argument
659 		if (!mi->groups[group].supported)  in minstrel_downgrade_rate()
667 			*idx = mi->groups[group].max_group_tp_rate[0];  in minstrel_downgrade_rate()
669 			*idx = mi->groups[group].max_group_tp_rate[1];  in minstrel_downgrade_rate()
703 	struct minstrel_ht_sta *mi = &msp->ht;  in minstrel_ht_tx_status()  local
725 	mi->ampdu_packets++;  in minstrel_ht_tx_status()
726 	mi->ampdu_len += info->status.ampdu_len;  in minstrel_ht_tx_status()
728 	if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {  in minstrel_ht_tx_status()
729 		mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);  in minstrel_ht_tx_status()
730 		mi->sample_tries = 1;  in minstrel_ht_tx_status()
731 		mi->sample_count--;  in minstrel_ht_tx_status()
735 		mi->sample_packets += info->status.ampdu_len;  in minstrel_ht_tx_status()
742 		rate = minstrel_ht_get_stats(mp, mi, &ar[i]);  in minstrel_ht_tx_status()
754 	rate = minstrel_get_ratestats(mi, mi->max_tp_rate[0]);  in minstrel_ht_tx_status()
758 		minstrel_downgrade_rate(mi, &mi->max_tp_rate[0], true);  in minstrel_ht_tx_status()
762 	rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate[1]);  in minstrel_ht_tx_status()
766 		minstrel_downgrade_rate(mi, &mi->max_tp_rate[1], false);  in minstrel_ht_tx_status()
770 	if (time_after(jiffies, mi->last_stats_update +  in minstrel_ht_tx_status()
773 		minstrel_ht_update_stats(mp, mi);  in minstrel_ht_tx_status()
777 		minstrel_ht_update_rates(mp, mi);  in minstrel_ht_tx_status()
781 minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,  in minstrel_calc_retransmit()  argument
790 	unsigned int ampdu_len = MINSTREL_TRUNC(mi->avg_ampdu_len);  in minstrel_calc_retransmit()
793 	mrs = minstrel_get_ratestats(mi, index);  in minstrel_calc_retransmit()
814 		overhead = mi->overhead;  in minstrel_calc_retransmit()
815 		overhead_rtscts = mi->overhead_rtscts;  in minstrel_calc_retransmit()
840 minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,  in minstrel_ht_set_rate()  argument
848 	mrs = minstrel_get_ratestats(mi, index);  in minstrel_ht_set_rate()
850 		minstrel_calc_retransmit(mp, mi, index);  in minstrel_ht_set_rate()
875 	    (mi->sta->smps_mode == IEEE80211_SMPS_DYNAMIC &&  in minstrel_ht_set_rate()
886 minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)  in minstrel_ht_update_rates()  argument
896 	minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate[0]);  in minstrel_ht_update_rates()
900 		minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate[1]);  in minstrel_ht_update_rates()
906 		minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_prob_rate);  in minstrel_ht_update_rates()
910 	rate_control_set_rates(mp->hw, mi->sta, rates);  in minstrel_ht_update_rates()
921 minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)  in minstrel_get_sample_rate()  argument
928 	if (mi->sample_wait > 0) {  in minstrel_get_sample_rate()
929 		mi->sample_wait--;  in minstrel_get_sample_rate()
933 	if (!mi->sample_tries)  in minstrel_get_sample_rate()
936 	sample_group = mi->sample_group;  in minstrel_get_sample_rate()
937 	mg = &mi->groups[sample_group];  in minstrel_get_sample_rate()
939 	minstrel_set_next_sample_idx(mi);  in minstrel_get_sample_rate()
952 	if (sample_idx == mi->max_tp_rate[0] ||  in minstrel_get_sample_rate()
953 	    sample_idx == mi->max_tp_rate[1] ||  in minstrel_get_sample_rate()
954 	    sample_idx == mi->max_prob_rate)  in minstrel_get_sample_rate()
969 	cur_max_tp_streams = minstrel_mcs_groups[mi->max_tp_rate[0] /  in minstrel_get_sample_rate()
972 	if (sample_dur >= minstrel_get_duration(mi->max_tp_rate[1]) &&  in minstrel_get_sample_rate()
975 	     sample_dur >= minstrel_get_duration(mi->max_prob_rate))) {  in minstrel_get_sample_rate()
979 		if (mi->sample_slow++ > 2)  in minstrel_get_sample_rate()
982 	mi->sample_tries--;  in minstrel_get_sample_rate()
989 				    struct minstrel_ht_sta *mi, bool val)  in minstrel_ht_check_cck_shortpreamble()  argument
991 	u8 supported = mi->groups[MINSTREL_CCK_GROUP].supported;  in minstrel_ht_check_cck_shortpreamble()
993 	if (!supported || !mi->cck_supported_short)  in minstrel_ht_check_cck_shortpreamble()
996 	if (supported & (mi->cck_supported_short << (val * 4)))  in minstrel_ht_check_cck_shortpreamble()
999 	supported ^= mi->cck_supported_short | (mi->cck_supported_short << 4);  in minstrel_ht_check_cck_shortpreamble()
1000 	mi->groups[MINSTREL_CCK_GROUP].supported = supported;  in minstrel_ht_check_cck_shortpreamble()
1011 	struct minstrel_ht_sta *mi = &msp->ht;  in minstrel_ht_get_rate()  local
1022 	    mi->max_prob_rate / MCS_GROUP_RATES != MINSTREL_CCK_GROUP)  in minstrel_ht_get_rate()
1025 	info->flags |= mi->tx_flags;  in minstrel_ht_get_rate()
1026 	minstrel_ht_check_cck_shortpreamble(mp, mi, txrc->short_preamble);  in minstrel_ht_get_rate()
1038 		sample_idx = minstrel_get_sample_rate(mp, mi);  in minstrel_ht_get_rate()
1040 	mi->total_packets++;  in minstrel_ht_get_rate()
1043 	if (mi->total_packets == ~0) {  in minstrel_ht_get_rate()
1044 		mi->total_packets = 0;  in minstrel_ht_get_rate()
1045 		mi->sample_packets = 0;  in minstrel_ht_get_rate()
1070 minstrel_ht_update_cck(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,  in minstrel_ht_update_cck()  argument
1082 	mi->cck_supported = 0;  in minstrel_ht_update_cck()
1083 	mi->cck_supported_short = 0;  in minstrel_ht_update_cck()
1088 		mi->cck_supported |= BIT(i);  in minstrel_ht_update_cck()
1090 			mi->cck_supported_short |= BIT(i);  in minstrel_ht_update_cck()
1093 	mi->groups[MINSTREL_CCK_GROUP].supported = mi->cck_supported;  in minstrel_ht_update_cck()
1103 	struct minstrel_ht_sta *mi = &msp->ht;  in minstrel_ht_update_caps()  local
1127 	memset(mi, 0, sizeof(*mi));  in minstrel_ht_update_caps()
1129 	mi->sta = sta;  in minstrel_ht_update_caps()
1130 	mi->last_stats_update = jiffies;  in minstrel_ht_update_caps()
1133 	mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1, 0);  in minstrel_ht_update_caps()
1134 	mi->overhead += ack_dur;  in minstrel_ht_update_caps()
1135 	mi->overhead_rtscts = mi->overhead + 2 * ack_dur;  in minstrel_ht_update_caps()
1137 	mi->avg_ampdu_len = MINSTREL_FRAC(1, 1);  in minstrel_ht_update_caps()
1141 		mi->sample_count = 16;  in minstrel_ht_update_caps()
1142 		mi->sample_wait = 0;  in minstrel_ht_update_caps()
1144 		mi->sample_count = 8;  in minstrel_ht_update_caps()
1145 		mi->sample_wait = 8;  in minstrel_ht_update_caps()
1147 	mi->sample_tries = 4;  in minstrel_ht_update_caps()
1153 		mi->tx_flags |= stbc << IEEE80211_TX_CTL_STBC_SHIFT;  in minstrel_ht_update_caps()
1156 			mi->tx_flags |= IEEE80211_TX_CTL_LDPC;  in minstrel_ht_update_caps()
1159 	for (i = 0; i < ARRAY_SIZE(mi->groups); i++) {  in minstrel_ht_update_caps()
1163 		mi->groups[i].supported = 0;  in minstrel_ht_update_caps()
1165 			minstrel_ht_update_cck(mp, mi, sband, sta);  in minstrel_ht_update_caps()
1195 			mi->groups[i].supported = mcs->rx_mask[nss - 1];  in minstrel_ht_update_caps()
1196 			if (mi->groups[i].supported)  in minstrel_ht_update_caps()
1222 		mi->groups[i].supported = minstrel_get_valid_vht_rates(bw, nss,  in minstrel_ht_update_caps()
1225 		if (mi->groups[i].supported)  in minstrel_ht_update_caps()
1233 	minstrel_ht_update_stats(mp, mi);  in minstrel_ht_update_caps()
1234 	minstrel_ht_update_rates(mp, mi);  in minstrel_ht_update_caps()
1326 	struct minstrel_ht_sta *mi = &msp->ht;  in minstrel_ht_get_expected_throughput()  local
1332 	i = mi->max_tp_rate[0] / MCS_GROUP_RATES;  in minstrel_ht_get_expected_throughput()
1333 	j = mi->max_tp_rate[0] % MCS_GROUP_RATES;  in minstrel_ht_get_expected_throughput()
1334 	prob = mi->groups[i].rates[j].prob_ewma;  in minstrel_ht_get_expected_throughput()
1337 	tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * 10;  in minstrel_ht_get_expected_throughput()