59 				 struct sta_info *sta)  in rssi_threshold_check()  argument
63 	       (sta &&  in rssi_threshold_check()
64 		(s8)-ewma_signal_read(&sta->rx_stats_avg.signal) >  in rssi_threshold_check()
75 static inline void mesh_plink_fsm_restart(struct sta_info *sta)  in mesh_plink_fsm_restart()  argument
77 	lockdep_assert_held(&sta->mesh->plink_lock);  in mesh_plink_fsm_restart()
78 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in mesh_plink_fsm_restart()
79 	sta->mesh->llid = sta->mesh->plid = sta->mesh->reason = 0;  in mesh_plink_fsm_restart()
80 	sta->mesh->plink_retries = 0;  in mesh_plink_fsm_restart()
97 	struct sta_info *sta;  in mesh_set_short_slot_time()  local
122 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_short_slot_time()
123 		if (sdata != sta->sdata ||  in mesh_set_short_slot_time()
124 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_short_slot_time()
128 		if (erp_rates & sta->sta.supp_rates[sband->band])  in mesh_set_short_slot_time()
158 	struct sta_info *sta;  in mesh_set_ht_prot_mode()  local
172 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_ht_prot_mode()
173 		if (sdata != sta->sdata ||  in mesh_set_ht_prot_mode()
174 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_ht_prot_mode()
177 		if (sta->sta.bandwidth > IEEE80211_STA_RX_BW_20)  in mesh_set_ht_prot_mode()
180 		if (!sta->sta.ht_cap.ht_supported) {  in mesh_set_ht_prot_mode()
182 				       sta->sta.addr);  in mesh_set_ht_prot_mode()
187 		mpl_dbg(sdata, "HT20 sta (%pM) is present\n", sta->sta.addr);  in mesh_set_ht_prot_mode()
210 			       struct sta_info *sta,  in mesh_plink_frame_tx()  argument
272 			put_unaligned_le16(sta->sta.aid, pos);  in mesh_plink_frame_tx()
357 static u32 __mesh_plink_deactivate(struct sta_info *sta)  in __mesh_plink_deactivate()  argument
359 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in __mesh_plink_deactivate()
362 	lockdep_assert_held(&sta->mesh->plink_lock);  in __mesh_plink_deactivate()
364 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in __mesh_plink_deactivate()
366 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in __mesh_plink_deactivate()
368 	ieee80211_mps_sta_status_update(sta);  in __mesh_plink_deactivate()
369 	changed |= ieee80211_mps_set_sta_local_pm(sta,  in __mesh_plink_deactivate()
382 u32 mesh_plink_deactivate(struct sta_info *sta)  in mesh_plink_deactivate()  argument
384 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_deactivate()
387 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
388 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_deactivate()
391 		sta->mesh->reason = WLAN_REASON_MESH_PEER_CANCELED;  in mesh_plink_deactivate()
392 		mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_CLOSE,  in mesh_plink_deactivate()
393 				    sta->sta.addr, sta->mesh->llid,  in mesh_plink_deactivate()
394 				    sta->mesh->plid, sta->mesh->reason);  in mesh_plink_deactivate()
396 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
398 		del_timer_sync(&sta->mesh->plink_timer);  in mesh_plink_deactivate()
399 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_deactivate()
408 			       struct sta_info *sta,  in mesh_sta_info_init()  argument
414 	enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth;  in mesh_sta_info_init()
423 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
424 	sta->rx_stats.last_rx = jiffies;  in mesh_sta_info_init()
427 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&  in mesh_sta_info_init()
428 	    sta->mesh->processed_beacon)  in mesh_sta_info_init()
430 	sta->mesh->processed_beacon = true;  in mesh_sta_info_init()
432 	if (sta->sta.supp_rates[sband->band] != rates)  in mesh_sta_info_init()
434 	sta->sta.supp_rates[sband->band] = rates;  in mesh_sta_info_init()
437 					      elems->ht_cap_elem, sta))  in mesh_sta_info_init()
441 					    elems->vht_cap_elem, sta);  in mesh_sta_info_init()
444 					  elems->he_cap_len, sta);  in mesh_sta_info_init()
446 	if (bw != sta->sta.bandwidth)  in mesh_sta_info_init()
453 		if (sta->sta.bandwidth != IEEE80211_STA_RX_BW_20)  in mesh_sta_info_init()
455 		sta->sta.bandwidth = IEEE80211_STA_RX_BW_20;  in mesh_sta_info_init()
458 	if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))  in mesh_sta_info_init()
459 		rate_control_rate_init(sta);  in mesh_sta_info_init()
461 		rate_control_rate_update(local, sband, sta, changed);  in mesh_sta_info_init()
463 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
468 	struct sta_info *sta;  in mesh_allocate_aid()  local
481 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list)  in mesh_allocate_aid()
482 		__set_bit(sta->sta.aid, aid_map);  in mesh_allocate_aid()
497 	struct sta_info *sta;  in __mesh_sta_info_alloc()  local
507 	sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);  in __mesh_sta_info_alloc()
508 	if (!sta)  in __mesh_sta_info_alloc()
511 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in __mesh_sta_info_alloc()
512 	sta->sta.wme = true;  in __mesh_sta_info_alloc()
513 	sta->sta.aid = aid;  in __mesh_sta_info_alloc()
515 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);  in __mesh_sta_info_alloc()
516 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);  in __mesh_sta_info_alloc()
517 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);  in __mesh_sta_info_alloc()
519 	return sta;  in __mesh_sta_info_alloc()
527 	struct sta_info *sta = NULL;  in mesh_sta_info_alloc()  local
545 		sta = __mesh_sta_info_alloc(sdata, addr);  in mesh_sta_info_alloc()
547 	return sta;  in mesh_sta_info_alloc()
566 	struct sta_info *sta = NULL;  in mesh_sta_info_get()  local
569 	sta = sta_info_get(sdata, addr);  in mesh_sta_info_get()
570 	if (sta) {  in mesh_sta_info_get()
571 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
575 		sta = mesh_sta_info_alloc(sdata, addr, elems, rx_status);  in mesh_sta_info_get()
576 		if (!sta) {  in mesh_sta_info_get()
581 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
583 		if (sta_info_insert_rcu(sta))  in mesh_sta_info_get()
587 	return sta;  in mesh_sta_info_get()
605 	struct sta_info *sta;  in mesh_neighbour_update()  local
608 	sta = mesh_sta_info_get(sdata, hw_addr, elems, rx_status);  in mesh_neighbour_update()
609 	if (!sta)  in mesh_neighbour_update()
612 	sta->mesh->connected_to_gate = elems->mesh_config->meshconf_form &  in mesh_neighbour_update()
616 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&  in mesh_neighbour_update()
619 	    rssi_threshold_check(sdata, sta))  in mesh_neighbour_update()
620 		changed = mesh_plink_open(sta);  in mesh_neighbour_update()
622 	ieee80211_mps_frame_release(sta, elems);  in mesh_neighbour_update()
631 	struct sta_info *sta;  in mesh_plink_timer()  local
642 	sta = mesh->plink_sta;  in mesh_plink_timer()
644 	if (sta->sdata->local->quiescing)  in mesh_plink_timer()
647 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
654 	if (time_before(jiffies, sta->mesh->plink_timer.expires)) {  in mesh_plink_timer()
655 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
657 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
658 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
663 	if (sta->mesh->plink_state == NL80211_PLINK_LISTEN ||  in mesh_plink_timer()
664 	    sta->mesh->plink_state == NL80211_PLINK_ESTAB) {  in mesh_plink_timer()
665 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
667 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
668 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
672 	mpl_dbg(sta->sdata,  in mesh_plink_timer()
674 		sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
675 	sdata = sta->sdata;  in mesh_plink_timer()
678 	switch (sta->mesh->plink_state) {  in mesh_plink_timer()
682 		if (sta->mesh->plink_retries < mshcfg->dot11MeshMaxRetries) {  in mesh_plink_timer()
684 			mpl_dbg(sta->sdata,  in mesh_plink_timer()
686 				sta->sta.addr, sta->mesh->plink_retries,  in mesh_plink_timer()
687 				sta->mesh->plink_timeout);  in mesh_plink_timer()
689 			sta->mesh->plink_timeout = sta->mesh->plink_timeout +  in mesh_plink_timer()
690 					     rand % sta->mesh->plink_timeout;  in mesh_plink_timer()
691 			++sta->mesh->plink_retries;  in mesh_plink_timer()
692 			mod_plink_timer(sta, sta->mesh->plink_timeout);  in mesh_plink_timer()
702 		sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_timer()
703 		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_timer()
708 		del_timer(&sta->mesh->plink_timer);  in mesh_plink_timer()
709 		mesh_plink_fsm_restart(sta);  in mesh_plink_timer()
714 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
716 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_timer()
717 				    sta->mesh->llid, sta->mesh->plid, reason);  in mesh_plink_timer()
720 static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout)  in mesh_plink_timer_set()  argument
722 	sta->mesh->plink_timeout = timeout;  in mesh_plink_timer_set()
723 	mod_timer(&sta->mesh->plink_timer, jiffies + msecs_to_jiffies(timeout));  in mesh_plink_timer_set()
731 	struct sta_info *sta;  in llid_in_use()  local
734 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in llid_in_use()
735 		if (sdata != sta->sdata)  in llid_in_use()
738 		if (!memcmp(&sta->mesh->llid, &llid, sizeof(llid))) {  in llid_in_use()
759 u32 mesh_plink_open(struct sta_info *sta)  in mesh_plink_open()  argument
761 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_open()
764 	if (!test_sta_flag(sta, WLAN_STA_AUTH))  in mesh_plink_open()
767 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
768 	sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_open()
769 	if (sta->mesh->plink_state != NL80211_PLINK_LISTEN &&  in mesh_plink_open()
770 	    sta->mesh->plink_state != NL80211_PLINK_BLOCKED) {  in mesh_plink_open()
771 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
774 	sta->mesh->plink_state = NL80211_PLINK_OPN_SNT;  in mesh_plink_open()
775 	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);  in mesh_plink_open()
776 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
779 		sta->sta.addr);  in mesh_plink_open()
784 	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_OPEN,  in mesh_plink_open()
785 			    sta->sta.addr, sta->mesh->llid, 0, 0);  in mesh_plink_open()
789 u32 mesh_plink_block(struct sta_info *sta)  in mesh_plink_block()  argument
793 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
794 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_block()
795 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in mesh_plink_block()
796 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
797 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_block()
803 			     struct sta_info *sta,  in mesh_plink_close()  argument
810 	sta->mesh->reason = reason;  in mesh_plink_close()
811 	sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_close()
812 	mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_close()
816 				struct sta_info *sta)  in mesh_plink_establish()  argument
821 	del_timer(&sta->mesh->plink_timer);  in mesh_plink_establish()
822 	sta->mesh->plink_state = NL80211_PLINK_ESTAB;  in mesh_plink_establish()
826 	mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr);  in mesh_plink_establish()
827 	ieee80211_mps_sta_status_update(sta);  in mesh_plink_establish()
828 	changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode);  in mesh_plink_establish()
842 			  struct sta_info *sta, enum plink_event event)  in mesh_plink_fsm()  argument
849 	mpl_dbg(sdata, "peer %pM in state %s got event %s\n", sta->sta.addr,  in mesh_plink_fsm()
850 		mplstates[sta->mesh->plink_state], mplevents[event]);  in mesh_plink_fsm()
852 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
853 	switch (sta->mesh->plink_state) {  in mesh_plink_fsm()
857 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
860 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
861 			sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_fsm()
862 			mesh_plink_timer_set(sta,  in mesh_plink_fsm()
878 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
883 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
887 			sta->mesh->plink_state = NL80211_PLINK_CNF_RCVD;  in mesh_plink_fsm()
888 			mod_plink_timer(sta, mshcfg->dot11MeshConfirmTimeout);  in mesh_plink_fsm()
899 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
906 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
917 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
921 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
931 			changed |= __mesh_plink_deactivate(sta);  in mesh_plink_fsm()
934 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
948 			del_timer(&sta->mesh->plink_timer);  in mesh_plink_fsm()
949 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
967 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
969 		mesh_path_flush_by_nexthop(sta);  in mesh_plink_fsm()
971 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_fsm()
972 				    sta->mesh->llid, sta->mesh->plid,  in mesh_plink_fsm()
973 				    sta->mesh->reason);  in mesh_plink_fsm()
977 			mesh_plink_frame_tx(sdata, sta,  in mesh_plink_fsm()
979 					    sta->sta.addr, sta->mesh->llid,  in mesh_plink_fsm()
980 					    sta->mesh->plid, 0);  in mesh_plink_fsm()
1002 		     struct sta_info *sta,  in mesh_plink_get_event()  argument
1015 	if (!matches_local && !sta) {  in mesh_plink_get_event()
1020 	if (!sta) {  in mesh_plink_get_event()
1035 		if (!test_sta_flag(sta, WLAN_STA_AUTH)) {  in mesh_plink_get_event()
1039 		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)  in mesh_plink_get_event()
1048 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1057 		    sta->mesh->llid != llid ||  in mesh_plink_get_event()
1058 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1064 		if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in mesh_plink_get_event()
1075 		else if (sta->mesh->plid != plid)  in mesh_plink_get_event()
1077 		else if (ie_len == 8 && sta->mesh->llid != llid)  in mesh_plink_get_event()
1098 	struct sta_info *sta;  in mesh_process_plink_frame()  local
1145 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_process_plink_frame()
1148 	    !rssi_threshold_check(sdata, sta)) {  in mesh_process_plink_frame()
1155 	event = mesh_plink_get_event(sdata, sta, elems, ftype, llid, plid);  in mesh_process_plink_frame()
1160 		sta = mesh_sta_info_get(sdata, mgmt->sa, elems, rx_status);  in mesh_process_plink_frame()
1161 		if (!sta) {  in mesh_process_plink_frame()
1165 		sta->mesh->plid = plid;  in mesh_process_plink_frame()
1166 	} else if (!sta && event == OPN_RJCT) {  in mesh_process_plink_frame()
1171 	} else if (!sta || event == PLINK_UNDEFINED) {  in mesh_process_plink_frame()
1178 		if (!sta->mesh->plid)  in mesh_process_plink_frame()
1179 			sta->mesh->plid = plid;  in mesh_process_plink_frame()
1181 		sta->mesh->aid = get_unaligned_le16(PLINK_CNF_AID(mgmt));  in mesh_process_plink_frame()
1184 	changed |= mesh_plink_fsm(sdata, sta, event);  in mesh_process_plink_frame()