61 				 struct sta_info *sta)  in rssi_threshold_check()  argument
65 	       (sta &&  in rssi_threshold_check()
66 		(s8)-ewma_signal_read(&sta->rx_stats_avg.signal) >  in rssi_threshold_check()
77 static inline void mesh_plink_fsm_restart(struct sta_info *sta)  in mesh_plink_fsm_restart()  argument
79 	lockdep_assert_held(&sta->mesh->plink_lock);  in mesh_plink_fsm_restart()
80 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in mesh_plink_fsm_restart()
81 	sta->mesh->llid = sta->mesh->plid = sta->mesh->reason = 0;  in mesh_plink_fsm_restart()
82 	sta->mesh->plink_retries = 0;  in mesh_plink_fsm_restart()
99 	struct sta_info *sta;  in mesh_set_short_slot_time()  local
124 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_short_slot_time()
125 		if (sdata != sta->sdata ||  in mesh_set_short_slot_time()
126 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_short_slot_time()
130 		if (erp_rates & sta->sta.supp_rates[sband->band])  in mesh_set_short_slot_time()
160 	struct sta_info *sta;  in mesh_set_ht_prot_mode()  local
174 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_ht_prot_mode()
175 		if (sdata != sta->sdata ||  in mesh_set_ht_prot_mode()
176 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_ht_prot_mode()
179 		if (sta->sta.bandwidth > IEEE80211_STA_RX_BW_20)  in mesh_set_ht_prot_mode()
182 		if (!sta->sta.ht_cap.ht_supported) {  in mesh_set_ht_prot_mode()
184 				       sta->sta.addr);  in mesh_set_ht_prot_mode()
189 		mpl_dbg(sdata, "HT20 sta (%pM) is present\n", sta->sta.addr);  in mesh_set_ht_prot_mode()
212 			       struct sta_info *sta,  in mesh_plink_frame_tx()  argument
269 			put_unaligned_le16(sta->sta.aid, pos);  in mesh_plink_frame_tx()
352 static u32 __mesh_plink_deactivate(struct sta_info *sta)  in __mesh_plink_deactivate()  argument
354 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in __mesh_plink_deactivate()
357 	lockdep_assert_held(&sta->mesh->plink_lock);  in __mesh_plink_deactivate()
359 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in __mesh_plink_deactivate()
361 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in __mesh_plink_deactivate()
363 	ieee80211_mps_sta_status_update(sta);  in __mesh_plink_deactivate()
364 	changed |= ieee80211_mps_set_sta_local_pm(sta,  in __mesh_plink_deactivate()
377 u32 mesh_plink_deactivate(struct sta_info *sta)  in mesh_plink_deactivate()  argument
379 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_deactivate()
382 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
383 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_deactivate()
386 		sta->mesh->reason = WLAN_REASON_MESH_PEER_CANCELED;  in mesh_plink_deactivate()
387 		mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_CLOSE,  in mesh_plink_deactivate()
388 				    sta->sta.addr, sta->mesh->llid,  in mesh_plink_deactivate()
389 				    sta->mesh->plid, sta->mesh->reason);  in mesh_plink_deactivate()
391 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
393 		del_timer_sync(&sta->mesh->plink_timer);  in mesh_plink_deactivate()
394 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_deactivate()
403 			       struct sta_info *sta,  in mesh_sta_info_init()  argument
409 	enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth;  in mesh_sta_info_init()
418 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
419 	sta->rx_stats.last_rx = jiffies;  in mesh_sta_info_init()
422 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&  in mesh_sta_info_init()
423 	    sta->mesh->processed_beacon)  in mesh_sta_info_init()
425 	sta->mesh->processed_beacon = true;  in mesh_sta_info_init()
427 	if (sta->sta.supp_rates[sband->band] != rates)  in mesh_sta_info_init()
429 	sta->sta.supp_rates[sband->band] = rates;  in mesh_sta_info_init()
432 					      elems->ht_cap_elem, sta))  in mesh_sta_info_init()
436 					    elems->vht_cap_elem, sta);  in mesh_sta_info_init()
438 	if (bw != sta->sta.bandwidth)  in mesh_sta_info_init()
445 		if (sta->sta.bandwidth != IEEE80211_STA_RX_BW_20)  in mesh_sta_info_init()
447 		sta->sta.bandwidth = IEEE80211_STA_RX_BW_20;  in mesh_sta_info_init()
450 	if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))  in mesh_sta_info_init()
451 		rate_control_rate_init(sta);  in mesh_sta_info_init()
453 		rate_control_rate_update(local, sband, sta, changed);  in mesh_sta_info_init()
455 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
460 	struct sta_info *sta;  in mesh_allocate_aid()  local
473 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list)  in mesh_allocate_aid()
474 		__set_bit(sta->sta.aid, aid_map);  in mesh_allocate_aid()
489 	struct sta_info *sta;  in __mesh_sta_info_alloc()  local
499 	sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);  in __mesh_sta_info_alloc()
500 	if (!sta)  in __mesh_sta_info_alloc()
503 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in __mesh_sta_info_alloc()
504 	sta->sta.wme = true;  in __mesh_sta_info_alloc()
505 	sta->sta.aid = aid;  in __mesh_sta_info_alloc()
507 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);  in __mesh_sta_info_alloc()
508 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);  in __mesh_sta_info_alloc()
509 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);  in __mesh_sta_info_alloc()
511 	return sta;  in __mesh_sta_info_alloc()
518 	struct sta_info *sta = NULL;  in mesh_sta_info_alloc()  local
530 		sta = __mesh_sta_info_alloc(sdata, addr);  in mesh_sta_info_alloc()
532 	return sta;  in mesh_sta_info_alloc()
549 	struct sta_info *sta = NULL;  in mesh_sta_info_get()  local
552 	sta = sta_info_get(sdata, addr);  in mesh_sta_info_get()
553 	if (sta) {  in mesh_sta_info_get()
554 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
558 		sta = mesh_sta_info_alloc(sdata, addr, elems);  in mesh_sta_info_get()
559 		if (!sta) {  in mesh_sta_info_get()
564 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
566 		if (sta_info_insert_rcu(sta))  in mesh_sta_info_get()
570 	return sta;  in mesh_sta_info_get()
586 	struct sta_info *sta;  in mesh_neighbour_update()  local
589 	sta = mesh_sta_info_get(sdata, hw_addr, elems);  in mesh_neighbour_update()
590 	if (!sta)  in mesh_neighbour_update()
594 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&  in mesh_neighbour_update()
597 	    rssi_threshold_check(sdata, sta))  in mesh_neighbour_update()
598 		changed = mesh_plink_open(sta);  in mesh_neighbour_update()
600 	ieee80211_mps_frame_release(sta, elems);  in mesh_neighbour_update()
609 	struct sta_info *sta;  in mesh_plink_timer()  local
620 	sta = mesh->plink_sta;  in mesh_plink_timer()
622 	if (sta->sdata->local->quiescing)  in mesh_plink_timer()
625 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
632 	if (time_before(jiffies, sta->mesh->plink_timer.expires)) {  in mesh_plink_timer()
633 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
635 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
636 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
641 	if (sta->mesh->plink_state == NL80211_PLINK_LISTEN ||  in mesh_plink_timer()
642 	    sta->mesh->plink_state == NL80211_PLINK_ESTAB) {  in mesh_plink_timer()
643 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
645 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
646 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
650 	mpl_dbg(sta->sdata,  in mesh_plink_timer()
652 		sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
653 	sdata = sta->sdata;  in mesh_plink_timer()
656 	switch (sta->mesh->plink_state) {  in mesh_plink_timer()
660 		if (sta->mesh->plink_retries < mshcfg->dot11MeshMaxRetries) {  in mesh_plink_timer()
662 			mpl_dbg(sta->sdata,  in mesh_plink_timer()
664 				sta->sta.addr, sta->mesh->plink_retries,  in mesh_plink_timer()
665 				sta->mesh->plink_timeout);  in mesh_plink_timer()
667 			sta->mesh->plink_timeout = sta->mesh->plink_timeout +  in mesh_plink_timer()
668 					     rand % sta->mesh->plink_timeout;  in mesh_plink_timer()
669 			++sta->mesh->plink_retries;  in mesh_plink_timer()
670 			mod_plink_timer(sta, sta->mesh->plink_timeout);  in mesh_plink_timer()
680 		sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_timer()
681 		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_timer()
686 		del_timer(&sta->mesh->plink_timer);  in mesh_plink_timer()
687 		mesh_plink_fsm_restart(sta);  in mesh_plink_timer()
692 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
694 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_timer()
695 				    sta->mesh->llid, sta->mesh->plid, reason);  in mesh_plink_timer()
698 static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout)  in mesh_plink_timer_set()  argument
700 	sta->mesh->plink_timeout = timeout;  in mesh_plink_timer_set()
701 	mod_timer(&sta->mesh->plink_timer, jiffies + msecs_to_jiffies(timeout));  in mesh_plink_timer_set()
709 	struct sta_info *sta;  in llid_in_use()  local
712 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in llid_in_use()
713 		if (sdata != sta->sdata)  in llid_in_use()
716 		if (!memcmp(&sta->mesh->llid, &llid, sizeof(llid))) {  in llid_in_use()
737 u32 mesh_plink_open(struct sta_info *sta)  in mesh_plink_open()  argument
739 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_open()
742 	if (!test_sta_flag(sta, WLAN_STA_AUTH))  in mesh_plink_open()
745 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
746 	sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_open()
747 	if (sta->mesh->plink_state != NL80211_PLINK_LISTEN &&  in mesh_plink_open()
748 	    sta->mesh->plink_state != NL80211_PLINK_BLOCKED) {  in mesh_plink_open()
749 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
752 	sta->mesh->plink_state = NL80211_PLINK_OPN_SNT;  in mesh_plink_open()
753 	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);  in mesh_plink_open()
754 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
757 		sta->sta.addr);  in mesh_plink_open()
762 	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_OPEN,  in mesh_plink_open()
763 			    sta->sta.addr, sta->mesh->llid, 0, 0);  in mesh_plink_open()
767 u32 mesh_plink_block(struct sta_info *sta)  in mesh_plink_block()  argument
771 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
772 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_block()
773 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in mesh_plink_block()
774 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
775 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_block()
781 			     struct sta_info *sta,  in mesh_plink_close()  argument
788 	sta->mesh->reason = reason;  in mesh_plink_close()
789 	sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_close()
790 	mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_close()
794 				struct sta_info *sta)  in mesh_plink_establish()  argument
799 	del_timer(&sta->mesh->plink_timer);  in mesh_plink_establish()
800 	sta->mesh->plink_state = NL80211_PLINK_ESTAB;  in mesh_plink_establish()
804 	mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr);  in mesh_plink_establish()
805 	ieee80211_mps_sta_status_update(sta);  in mesh_plink_establish()
806 	changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode);  in mesh_plink_establish()
820 			  struct sta_info *sta, enum plink_event event)  in mesh_plink_fsm()  argument
827 	mpl_dbg(sdata, "peer %pM in state %s got event %s\n", sta->sta.addr,  in mesh_plink_fsm()
828 		mplstates[sta->mesh->plink_state], mplevents[event]);  in mesh_plink_fsm()
830 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
831 	switch (sta->mesh->plink_state) {  in mesh_plink_fsm()
835 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
838 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
839 			sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_fsm()
840 			mesh_plink_timer_set(sta,  in mesh_plink_fsm()
856 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
861 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
865 			sta->mesh->plink_state = NL80211_PLINK_CNF_RCVD;  in mesh_plink_fsm()
866 			mod_plink_timer(sta, mshcfg->dot11MeshConfirmTimeout);  in mesh_plink_fsm()
877 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
884 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
895 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
899 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
909 			changed |= __mesh_plink_deactivate(sta);  in mesh_plink_fsm()
912 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
926 			del_timer(&sta->mesh->plink_timer);  in mesh_plink_fsm()
927 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
945 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
947 		mesh_path_flush_by_nexthop(sta);  in mesh_plink_fsm()
949 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_fsm()
950 				    sta->mesh->llid, sta->mesh->plid,  in mesh_plink_fsm()
951 				    sta->mesh->reason);  in mesh_plink_fsm()
955 			mesh_plink_frame_tx(sdata, sta,  in mesh_plink_fsm()
957 					    sta->sta.addr, sta->mesh->llid,  in mesh_plink_fsm()
958 					    sta->mesh->plid, 0);  in mesh_plink_fsm()
980 		     struct sta_info *sta,  in mesh_plink_get_event()  argument
993 	if (!matches_local && !sta) {  in mesh_plink_get_event()
998 	if (!sta) {  in mesh_plink_get_event()
1013 		if (!test_sta_flag(sta, WLAN_STA_AUTH)) {  in mesh_plink_get_event()
1017 		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)  in mesh_plink_get_event()
1026 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1035 		    sta->mesh->llid != llid ||  in mesh_plink_get_event()
1036 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1042 		if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in mesh_plink_get_event()
1053 		else if (sta->mesh->plid != plid)  in mesh_plink_get_event()
1055 		else if (ie_len == 8 && sta->mesh->llid != llid)  in mesh_plink_get_event()
1075 	struct sta_info *sta;  in mesh_process_plink_frame()  local
1122 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_process_plink_frame()
1125 	    !rssi_threshold_check(sdata, sta)) {  in mesh_process_plink_frame()
1132 	event = mesh_plink_get_event(sdata, sta, elems, ftype, llid, plid);  in mesh_process_plink_frame()
1137 		sta = mesh_sta_info_get(sdata, mgmt->sa, elems);  in mesh_process_plink_frame()
1138 		if (!sta) {  in mesh_process_plink_frame()
1142 		sta->mesh->plid = plid;  in mesh_process_plink_frame()
1143 	} else if (!sta && event == OPN_RJCT) {  in mesh_process_plink_frame()
1148 	} else if (!sta || event == PLINK_UNDEFINED) {  in mesh_process_plink_frame()
1155 		if (!sta->mesh->plid)  in mesh_process_plink_frame()
1156 			sta->mesh->plid = plid;  in mesh_process_plink_frame()
1158 		sta->mesh->aid = get_unaligned_le16(PLINK_CNF_AID(mgmt));  in mesh_process_plink_frame()
1161 	changed |= mesh_plink_fsm(sdata, sta, event);  in mesh_process_plink_frame()