59 				 struct sta_info *sta)  in rssi_threshold_check()  argument
63 	       (sta &&  in rssi_threshold_check()
64 		(s8)-ewma_signal_read(&sta->deflink.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
123 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_short_slot_time()
124 		if (sdata != sta->sdata ||  in mesh_set_short_slot_time()
125 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_short_slot_time()
129 		if (erp_rates & sta->sta.deflink.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.deflink.bandwidth > IEEE80211_STA_RX_BW_20)  in mesh_set_ht_prot_mode()
182 		if (!sta->sta.deflink.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
281 			put_unaligned_le16(sta->sta.aid, pos);  in mesh_plink_frame_tx()
369 static u64 __mesh_plink_deactivate(struct sta_info *sta)  in __mesh_plink_deactivate()  argument
371 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in __mesh_plink_deactivate()
374 	lockdep_assert_held(&sta->mesh->plink_lock);  in __mesh_plink_deactivate()
376 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in __mesh_plink_deactivate()
378 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in __mesh_plink_deactivate()
380 	ieee80211_mps_sta_status_update(sta);  in __mesh_plink_deactivate()
381 	changed |= ieee80211_mps_set_sta_local_pm(sta,  in __mesh_plink_deactivate()
394 u64 mesh_plink_deactivate(struct sta_info *sta)  in mesh_plink_deactivate()  argument
396 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_deactivate()
399 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
400 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_deactivate()
403 		sta->mesh->reason = WLAN_REASON_MESH_PEER_CANCELED;  in mesh_plink_deactivate()
404 		mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_CLOSE,  in mesh_plink_deactivate()
405 				    sta->sta.addr, sta->mesh->llid,  in mesh_plink_deactivate()
406 				    sta->mesh->plid, sta->mesh->reason);  in mesh_plink_deactivate()
408 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
410 		del_timer_sync(&sta->mesh->plink_timer);  in mesh_plink_deactivate()
411 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_deactivate()
420 			       struct sta_info *sta,  in mesh_sta_info_init()  argument
426 	enum ieee80211_sta_rx_bandwidth bw = sta->sta.deflink.bandwidth;  in mesh_sta_info_init()
435 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
436 	sta->deflink.rx_stats.last_rx = jiffies;  in mesh_sta_info_init()
439 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&  in mesh_sta_info_init()
440 	    sta->mesh->processed_beacon)  in mesh_sta_info_init()
442 	sta->mesh->processed_beacon = true;  in mesh_sta_info_init()
444 	if (sta->sta.deflink.supp_rates[sband->band] != rates)  in mesh_sta_info_init()
446 	sta->sta.deflink.supp_rates[sband->band] = rates;  in mesh_sta_info_init()
450 					      &sta->deflink))  in mesh_sta_info_init()
455 					    &sta->deflink);  in mesh_sta_info_init()
460 					  &sta->deflink);  in mesh_sta_info_init()
465 					    &sta->deflink);  in mesh_sta_info_init()
467 	if (bw != sta->sta.deflink.bandwidth)  in mesh_sta_info_init()
474 		if (sta->sta.deflink.bandwidth != IEEE80211_STA_RX_BW_20)  in mesh_sta_info_init()
476 		sta->sta.deflink.bandwidth = IEEE80211_STA_RX_BW_20;  in mesh_sta_info_init()
479 	if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))  in mesh_sta_info_init()
480 		rate_control_rate_init(sta);  in mesh_sta_info_init()
482 		rate_control_rate_update(local, sband, sta, 0, changed);  in mesh_sta_info_init()
484 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
489 	struct sta_info *sta;  in mesh_allocate_aid()  local
501 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list)  in mesh_allocate_aid()
502 		__set_bit(sta->sta.aid, aid_map);  in mesh_allocate_aid()
517 	struct sta_info *sta;  in __mesh_sta_info_alloc()  local
527 	sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);  in __mesh_sta_info_alloc()
528 	if (!sta)  in __mesh_sta_info_alloc()
531 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in __mesh_sta_info_alloc()
532 	sta->sta.wme = true;  in __mesh_sta_info_alloc()
533 	sta->sta.aid = aid;  in __mesh_sta_info_alloc()
535 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);  in __mesh_sta_info_alloc()
536 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);  in __mesh_sta_info_alloc()
537 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);  in __mesh_sta_info_alloc()
539 	return sta;  in __mesh_sta_info_alloc()
547 	struct sta_info *sta = NULL;  in mesh_sta_info_alloc()  local
565 		sta = __mesh_sta_info_alloc(sdata, addr);  in mesh_sta_info_alloc()
567 	return sta;  in mesh_sta_info_alloc()
586 	struct sta_info *sta = NULL;  in mesh_sta_info_get()  local
589 	sta = sta_info_get(sdata, addr);  in mesh_sta_info_get()
590 	if (sta) {  in mesh_sta_info_get()
591 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
595 		sta = mesh_sta_info_alloc(sdata, addr, elems, rx_status);  in mesh_sta_info_get()
596 		if (!sta) {  in mesh_sta_info_get()
601 		mesh_sta_info_init(sdata, sta, elems);  in mesh_sta_info_get()
603 		if (sta_info_insert_rcu(sta))  in mesh_sta_info_get()
607 	return sta;  in mesh_sta_info_get()
625 	struct sta_info *sta;  in mesh_neighbour_update()  local
628 	sta = mesh_sta_info_get(sdata, hw_addr, elems, rx_status);  in mesh_neighbour_update()
629 	if (!sta)  in mesh_neighbour_update()
632 	sta->mesh->connected_to_gate = elems->mesh_config->meshconf_form &  in mesh_neighbour_update()
636 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&  in mesh_neighbour_update()
639 	    rssi_threshold_check(sdata, sta))  in mesh_neighbour_update()
640 		changed = mesh_plink_open(sta);  in mesh_neighbour_update()
642 	ieee80211_mps_frame_release(sta, elems);  in mesh_neighbour_update()
651 	struct sta_info *sta;  in mesh_plink_timer()  local
662 	sta = mesh->plink_sta;  in mesh_plink_timer()
664 	if (sta->sdata->local->quiescing)  in mesh_plink_timer()
667 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
674 	if (time_before(jiffies, sta->mesh->plink_timer.expires)) {  in mesh_plink_timer()
675 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
677 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
678 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
683 	if (sta->mesh->plink_state == NL80211_PLINK_LISTEN ||  in mesh_plink_timer()
684 	    sta->mesh->plink_state == NL80211_PLINK_ESTAB) {  in mesh_plink_timer()
685 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
687 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
688 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
692 	mpl_dbg(sta->sdata,  in mesh_plink_timer()
694 		sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
695 	sdata = sta->sdata;  in mesh_plink_timer()
698 	switch (sta->mesh->plink_state) {  in mesh_plink_timer()
702 		if (sta->mesh->plink_retries < mshcfg->dot11MeshMaxRetries) {  in mesh_plink_timer()
704 			mpl_dbg(sta->sdata,  in mesh_plink_timer()
706 				sta->sta.addr, sta->mesh->plink_retries,  in mesh_plink_timer()
707 				sta->mesh->plink_timeout);  in mesh_plink_timer()
709 			sta->mesh->plink_timeout = sta->mesh->plink_timeout +  in mesh_plink_timer()
710 					     rand % sta->mesh->plink_timeout;  in mesh_plink_timer()
711 			++sta->mesh->plink_retries;  in mesh_plink_timer()
712 			mod_plink_timer(sta, sta->mesh->plink_timeout);  in mesh_plink_timer()
722 		sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_timer()
723 		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_timer()
728 		del_timer(&sta->mesh->plink_timer);  in mesh_plink_timer()
729 		mesh_plink_fsm_restart(sta);  in mesh_plink_timer()
734 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
736 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_timer()
737 				    sta->mesh->llid, sta->mesh->plid, reason);  in mesh_plink_timer()
740 static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout)  in mesh_plink_timer_set()  argument
742 	sta->mesh->plink_timeout = timeout;  in mesh_plink_timer_set()
743 	mod_timer(&sta->mesh->plink_timer, jiffies + msecs_to_jiffies(timeout));  in mesh_plink_timer_set()
751 	struct sta_info *sta;  in llid_in_use()  local
754 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in llid_in_use()
755 		if (sdata != sta->sdata)  in llid_in_use()
758 		if (!memcmp(&sta->mesh->llid, &llid, sizeof(llid))) {  in llid_in_use()
779 u64 mesh_plink_open(struct sta_info *sta)  in mesh_plink_open()  argument
781 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_open()
784 	if (!test_sta_flag(sta, WLAN_STA_AUTH))  in mesh_plink_open()
787 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
788 	sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_open()
789 	if (sta->mesh->plink_state != NL80211_PLINK_LISTEN &&  in mesh_plink_open()
790 	    sta->mesh->plink_state != NL80211_PLINK_BLOCKED) {  in mesh_plink_open()
791 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
794 	sta->mesh->plink_state = NL80211_PLINK_OPN_SNT;  in mesh_plink_open()
795 	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);  in mesh_plink_open()
796 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
799 		sta->sta.addr);  in mesh_plink_open()
804 	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_OPEN,  in mesh_plink_open()
805 			    sta->sta.addr, sta->mesh->llid, 0, 0);  in mesh_plink_open()
809 u64 mesh_plink_block(struct sta_info *sta)  in mesh_plink_block()  argument
813 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
814 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_block()
815 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in mesh_plink_block()
816 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
817 	mesh_path_flush_by_nexthop(sta);  in mesh_plink_block()
823 			     struct sta_info *sta,  in mesh_plink_close()  argument
830 	sta->mesh->reason = reason;  in mesh_plink_close()
831 	sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_close()
832 	mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_close()
836 				struct sta_info *sta)  in mesh_plink_establish()  argument
841 	del_timer(&sta->mesh->plink_timer);  in mesh_plink_establish()
842 	sta->mesh->plink_state = NL80211_PLINK_ESTAB;  in mesh_plink_establish()
846 	mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr);  in mesh_plink_establish()
847 	ieee80211_mps_sta_status_update(sta);  in mesh_plink_establish()
848 	changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode);  in mesh_plink_establish()
862 			  struct sta_info *sta, enum plink_event event)  in mesh_plink_fsm()  argument
869 	mpl_dbg(sdata, "peer %pM in state %s got event %s\n", sta->sta.addr,  in mesh_plink_fsm()
870 		mplstates[sta->mesh->plink_state], mplevents[event]);  in mesh_plink_fsm()
872 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
873 	switch (sta->mesh->plink_state) {  in mesh_plink_fsm()
877 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
880 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
881 			sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_fsm()
882 			mesh_plink_timer_set(sta,  in mesh_plink_fsm()
898 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
903 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
907 			sta->mesh->plink_state = NL80211_PLINK_CNF_RCVD;  in mesh_plink_fsm()
908 			mod_plink_timer(sta, mshcfg->dot11MeshConfirmTimeout);  in mesh_plink_fsm()
919 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
926 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
937 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
941 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
951 			changed |= __mesh_plink_deactivate(sta);  in mesh_plink_fsm()
954 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
968 			del_timer(&sta->mesh->plink_timer);  in mesh_plink_fsm()
969 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
987 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
989 		mesh_path_flush_by_nexthop(sta);  in mesh_plink_fsm()
991 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_fsm()
992 				    sta->mesh->llid, sta->mesh->plid,  in mesh_plink_fsm()
993 				    sta->mesh->reason);  in mesh_plink_fsm()
997 			mesh_plink_frame_tx(sdata, sta,  in mesh_plink_fsm()
999 					    sta->sta.addr, sta->mesh->llid,  in mesh_plink_fsm()
1000 					    sta->mesh->plid, 0);  in mesh_plink_fsm()
1022 		     struct sta_info *sta,  in mesh_plink_get_event()  argument
1035 	if (!matches_local && !sta) {  in mesh_plink_get_event()
1040 	if (!sta) {  in mesh_plink_get_event()
1055 		if (!test_sta_flag(sta, WLAN_STA_AUTH)) {  in mesh_plink_get_event()
1059 		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)  in mesh_plink_get_event()
1068 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1077 		    sta->mesh->llid != llid ||  in mesh_plink_get_event()
1078 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1084 		if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in mesh_plink_get_event()
1095 		else if (sta->mesh->plid != plid)  in mesh_plink_get_event()
1097 		else if (ie_len == 8 && sta->mesh->llid != llid)  in mesh_plink_get_event()
1118 	struct sta_info *sta;  in mesh_process_plink_frame()  local
1165 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_process_plink_frame()
1168 	    !rssi_threshold_check(sdata, sta)) {  in mesh_process_plink_frame()
1175 	event = mesh_plink_get_event(sdata, sta, elems, ftype, llid, plid);  in mesh_process_plink_frame()
1180 		sta = mesh_sta_info_get(sdata, mgmt->sa, elems, rx_status);  in mesh_process_plink_frame()
1181 		if (!sta) {  in mesh_process_plink_frame()
1185 		sta->mesh->plid = plid;  in mesh_process_plink_frame()
1186 	} else if (!sta && event == OPN_RJCT) {  in mesh_process_plink_frame()
1191 	} else if (!sta || event == PLINK_UNDEFINED) {  in mesh_process_plink_frame()
1198 		if (!sta->mesh->plid)  in mesh_process_plink_frame()
1199 			sta->mesh->plid = plid;  in mesh_process_plink_frame()
1201 		sta->mesh->aid = get_unaligned_le16(PLINK_CNF_AID(mgmt));  in mesh_process_plink_frame()
1204 	changed |= mesh_plink_fsm(sdata, sta, event);  in mesh_process_plink_frame()