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()
98 	struct sta_info *sta;  in mesh_set_short_slot_time()  local
118 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_short_slot_time()
119 		if (sdata != sta->sdata ||  in mesh_set_short_slot_time()
120 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_short_slot_time()
124 		if (erp_rates & sta->sta.supp_rates[band])  in mesh_set_short_slot_time()
154 	struct sta_info *sta;  in mesh_set_ht_prot_mode()  local
168 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in mesh_set_ht_prot_mode()
169 		if (sdata != sta->sdata ||  in mesh_set_ht_prot_mode()
170 		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)  in mesh_set_ht_prot_mode()
173 		if (sta->sta.bandwidth > IEEE80211_STA_RX_BW_20)  in mesh_set_ht_prot_mode()
176 		if (!sta->sta.ht_cap.ht_supported) {  in mesh_set_ht_prot_mode()
178 				       sta->sta.addr);  in mesh_set_ht_prot_mode()
183 		mpl_dbg(sdata, "HT20 sta (%pM) is present\n", sta->sta.addr);  in mesh_set_ht_prot_mode()
206 			       struct sta_info *sta,  in mesh_plink_frame_tx()  argument
258 			put_unaligned_le16(sta->sta.aid, pos);  in mesh_plink_frame_tx()
339 static u32 __mesh_plink_deactivate(struct sta_info *sta)  in __mesh_plink_deactivate()  argument
341 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in __mesh_plink_deactivate()
344 	lockdep_assert_held(&sta->mesh->plink_lock);  in __mesh_plink_deactivate()
346 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in __mesh_plink_deactivate()
348 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in __mesh_plink_deactivate()
349 	mesh_path_flush_by_nexthop(sta);  in __mesh_plink_deactivate()
351 	ieee80211_mps_sta_status_update(sta);  in __mesh_plink_deactivate()
352 	changed |= ieee80211_mps_set_sta_local_pm(sta,  in __mesh_plink_deactivate()
365 u32 mesh_plink_deactivate(struct sta_info *sta)  in mesh_plink_deactivate()  argument
367 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_deactivate()
370 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
371 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_deactivate()
372 	sta->mesh->reason = WLAN_REASON_MESH_PEER_CANCELED;  in mesh_plink_deactivate()
373 	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_CLOSE,  in mesh_plink_deactivate()
374 			    sta->sta.addr, sta->mesh->llid, sta->mesh->plid,  in mesh_plink_deactivate()
375 			    sta->mesh->reason);  in mesh_plink_deactivate()
376 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_deactivate()
382 			       struct sta_info *sta,  in mesh_sta_info_init()  argument
389 	enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth;  in mesh_sta_info_init()
394 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
395 	sta->rx_stats.last_rx = jiffies;  in mesh_sta_info_init()
398 	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&  in mesh_sta_info_init()
399 	    sta->mesh->processed_beacon)  in mesh_sta_info_init()
401 	sta->mesh->processed_beacon = true;  in mesh_sta_info_init()
403 	if (sta->sta.supp_rates[band] != rates)  in mesh_sta_info_init()
405 	sta->sta.supp_rates[band] = rates;  in mesh_sta_info_init()
408 					      elems->ht_cap_elem, sta))  in mesh_sta_info_init()
412 					    elems->vht_cap_elem, sta);  in mesh_sta_info_init()
414 	if (bw != sta->sta.bandwidth)  in mesh_sta_info_init()
421 		if (sta->sta.bandwidth != IEEE80211_STA_RX_BW_20)  in mesh_sta_info_init()
423 		sta->sta.bandwidth = IEEE80211_STA_RX_BW_20;  in mesh_sta_info_init()
427 		rate_control_rate_init(sta);  in mesh_sta_info_init()
429 		rate_control_rate_update(local, sband, sta, changed);  in mesh_sta_info_init()
431 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_sta_info_init()
436 	struct sta_info *sta;  in mesh_allocate_aid()  local
449 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list)  in mesh_allocate_aid()
450 		__set_bit(sta->sta.aid, aid_map);  in mesh_allocate_aid()
465 	struct sta_info *sta;  in __mesh_sta_info_alloc()  local
475 	sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);  in __mesh_sta_info_alloc()
476 	if (!sta)  in __mesh_sta_info_alloc()
479 	sta->mesh->plink_state = NL80211_PLINK_LISTEN;  in __mesh_sta_info_alloc()
480 	sta->sta.wme = true;  in __mesh_sta_info_alloc()
481 	sta->sta.aid = aid;  in __mesh_sta_info_alloc()
483 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);  in __mesh_sta_info_alloc()
484 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);  in __mesh_sta_info_alloc()
485 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);  in __mesh_sta_info_alloc()
487 	return sta;  in __mesh_sta_info_alloc()
494 	struct sta_info *sta = NULL;  in mesh_sta_info_alloc()  local
504 		sta = __mesh_sta_info_alloc(sdata, addr);  in mesh_sta_info_alloc()
506 	return sta;  in mesh_sta_info_alloc()
523 	struct sta_info *sta = NULL;  in mesh_sta_info_get()  local
526 	sta = sta_info_get(sdata, addr);  in mesh_sta_info_get()
527 	if (sta) {  in mesh_sta_info_get()
528 		mesh_sta_info_init(sdata, sta, elems, false);  in mesh_sta_info_get()
532 		sta = mesh_sta_info_alloc(sdata, addr, elems);  in mesh_sta_info_get()
533 		if (!sta) {  in mesh_sta_info_get()
538 		mesh_sta_info_init(sdata, sta, elems, true);  in mesh_sta_info_get()
540 		if (sta_info_insert_rcu(sta))  in mesh_sta_info_get()
544 	return sta;  in mesh_sta_info_get()
560 	struct sta_info *sta;  in mesh_neighbour_update()  local
563 	sta = mesh_sta_info_get(sdata, hw_addr, elems);  in mesh_neighbour_update()
564 	if (!sta)  in mesh_neighbour_update()
568 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&  in mesh_neighbour_update()
571 	    rssi_threshold_check(sdata, sta))  in mesh_neighbour_update()
572 		changed = mesh_plink_open(sta);  in mesh_neighbour_update()
574 	ieee80211_mps_frame_release(sta, elems);  in mesh_neighbour_update()
582 	struct sta_info *sta;  in mesh_plink_timer()  local
593 	sta = (struct sta_info *) data;  in mesh_plink_timer()
595 	if (sta->sdata->local->quiescing)  in mesh_plink_timer()
598 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
605 	if (time_before(jiffies, sta->mesh->plink_timer.expires)) {  in mesh_plink_timer()
606 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
608 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
609 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
614 	if (sta->mesh->plink_state == NL80211_PLINK_LISTEN ||  in mesh_plink_timer()
615 	    sta->mesh->plink_state == NL80211_PLINK_ESTAB) {  in mesh_plink_timer()
616 		mpl_dbg(sta->sdata,  in mesh_plink_timer()
618 			sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
619 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
623 	mpl_dbg(sta->sdata,  in mesh_plink_timer()
625 		sta->sta.addr, mplstates[sta->mesh->plink_state]);  in mesh_plink_timer()
626 	sdata = sta->sdata;  in mesh_plink_timer()
629 	switch (sta->mesh->plink_state) {  in mesh_plink_timer()
633 		if (sta->mesh->plink_retries < mshcfg->dot11MeshMaxRetries) {  in mesh_plink_timer()
635 			mpl_dbg(sta->sdata,  in mesh_plink_timer()
637 				sta->sta.addr, sta->mesh->plink_retries,  in mesh_plink_timer()
638 				sta->mesh->plink_timeout);  in mesh_plink_timer()
640 			sta->mesh->plink_timeout = sta->mesh->plink_timeout +  in mesh_plink_timer()
641 					     rand % sta->mesh->plink_timeout;  in mesh_plink_timer()
642 			++sta->mesh->plink_retries;  in mesh_plink_timer()
643 			mod_plink_timer(sta, sta->mesh->plink_timeout);  in mesh_plink_timer()
653 		sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_timer()
654 		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_timer()
659 		del_timer(&sta->mesh->plink_timer);  in mesh_plink_timer()
660 		mesh_plink_fsm_restart(sta);  in mesh_plink_timer()
665 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_timer()
667 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_timer()
668 				    sta->mesh->llid, sta->mesh->plid, reason);  in mesh_plink_timer()
671 static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout)  in mesh_plink_timer_set()  argument
673 	sta->mesh->plink_timer.expires = jiffies + msecs_to_jiffies(timeout);  in mesh_plink_timer_set()
674 	sta->mesh->plink_timer.data = (unsigned long) sta;  in mesh_plink_timer_set()
675 	sta->mesh->plink_timer.function = mesh_plink_timer;  in mesh_plink_timer_set()
676 	sta->mesh->plink_timeout = timeout;  in mesh_plink_timer_set()
677 	add_timer(&sta->mesh->plink_timer);  in mesh_plink_timer_set()
685 	struct sta_info *sta;  in llid_in_use()  local
688 	list_for_each_entry_rcu(sta, &local->sta_list, list) {  in llid_in_use()
689 		if (sdata != sta->sdata)  in llid_in_use()
692 		if (!memcmp(&sta->mesh->llid, &llid, sizeof(llid))) {  in llid_in_use()
713 u32 mesh_plink_open(struct sta_info *sta)  in mesh_plink_open()  argument
715 	struct ieee80211_sub_if_data *sdata = sta->sdata;  in mesh_plink_open()
718 	if (!test_sta_flag(sta, WLAN_STA_AUTH))  in mesh_plink_open()
721 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
722 	sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_open()
723 	if (sta->mesh->plink_state != NL80211_PLINK_LISTEN &&  in mesh_plink_open()
724 	    sta->mesh->plink_state != NL80211_PLINK_BLOCKED) {  in mesh_plink_open()
725 		spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
728 	sta->mesh->plink_state = NL80211_PLINK_OPN_SNT;  in mesh_plink_open()
729 	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);  in mesh_plink_open()
730 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_open()
733 		sta->sta.addr);  in mesh_plink_open()
738 	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_OPEN,  in mesh_plink_open()
739 			    sta->sta.addr, sta->mesh->llid, 0, 0);  in mesh_plink_open()
743 u32 mesh_plink_block(struct sta_info *sta)  in mesh_plink_block()  argument
747 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
748 	changed = __mesh_plink_deactivate(sta);  in mesh_plink_block()
749 	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;  in mesh_plink_block()
750 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_block()
756 			     struct sta_info *sta,  in mesh_plink_close()  argument
763 	sta->mesh->reason = reason;  in mesh_plink_close()
764 	sta->mesh->plink_state = NL80211_PLINK_HOLDING;  in mesh_plink_close()
765 	mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);  in mesh_plink_close()
769 				struct sta_info *sta)  in mesh_plink_establish()  argument
774 	del_timer(&sta->mesh->plink_timer);  in mesh_plink_establish()
775 	sta->mesh->plink_state = NL80211_PLINK_ESTAB;  in mesh_plink_establish()
779 	mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr);  in mesh_plink_establish()
780 	ieee80211_mps_sta_status_update(sta);  in mesh_plink_establish()
781 	changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode);  in mesh_plink_establish()
795 			  struct sta_info *sta, enum plink_event event)  in mesh_plink_fsm()  argument
801 	mpl_dbg(sdata, "peer %pM in state %s got event %s\n", sta->sta.addr,  in mesh_plink_fsm()
802 		mplstates[sta->mesh->plink_state], mplevents[event]);  in mesh_plink_fsm()
804 	spin_lock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
805 	switch (sta->mesh->plink_state) {  in mesh_plink_fsm()
809 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
812 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
813 			sta->mesh->llid = mesh_get_new_llid(sdata);  in mesh_plink_fsm()
814 			mesh_plink_timer_set(sta,  in mesh_plink_fsm()
830 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
835 			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;  in mesh_plink_fsm()
839 			sta->mesh->plink_state = NL80211_PLINK_CNF_RCVD;  in mesh_plink_fsm()
840 			mod_plink_timer(sta, mshcfg->dot11MeshConfirmTimeout);  in mesh_plink_fsm()
851 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
858 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
869 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
873 			changed |= mesh_plink_establish(sdata, sta);  in mesh_plink_fsm()
883 			changed |= __mesh_plink_deactivate(sta);  in mesh_plink_fsm()
886 			mesh_plink_close(sdata, sta, event);  in mesh_plink_fsm()
899 			del_timer(&sta->mesh->plink_timer);  in mesh_plink_fsm()
900 			mesh_plink_fsm_restart(sta);  in mesh_plink_fsm()
918 	spin_unlock_bh(&sta->mesh->plink_lock);  in mesh_plink_fsm()
920 		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,  in mesh_plink_fsm()
921 				    sta->mesh->llid, sta->mesh->plid,  in mesh_plink_fsm()
922 				    sta->mesh->reason);  in mesh_plink_fsm()
926 			mesh_plink_frame_tx(sdata, sta,  in mesh_plink_fsm()
928 					    sta->sta.addr, sta->mesh->llid,  in mesh_plink_fsm()
929 					    sta->mesh->plid, 0);  in mesh_plink_fsm()
951 		     struct sta_info *sta,  in mesh_plink_get_event()  argument
964 	if (!matches_local && !sta) {  in mesh_plink_get_event()
969 	if (!sta) {  in mesh_plink_get_event()
980 		if (!test_sta_flag(sta, WLAN_STA_AUTH)) {  in mesh_plink_get_event()
984 		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)  in mesh_plink_get_event()
989 	if (!sta) {  in mesh_plink_get_event()
999 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1008 		    sta->mesh->llid != llid ||  in mesh_plink_get_event()
1009 		    (sta->mesh->plid && sta->mesh->plid != plid))  in mesh_plink_get_event()
1015 		if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)  in mesh_plink_get_event()
1026 		else if (sta->mesh->plid != plid)  in mesh_plink_get_event()
1028 		else if (ie_len == 8 && sta->mesh->llid != llid)  in mesh_plink_get_event()
1048 	struct sta_info *sta;  in mesh_process_plink_frame()  local
1095 	sta = sta_info_get(sdata, mgmt->sa);  in mesh_process_plink_frame()
1098 	    !rssi_threshold_check(sdata, sta)) {  in mesh_process_plink_frame()
1105 	event = mesh_plink_get_event(sdata, sta, elems, ftype, llid, plid);  in mesh_process_plink_frame()
1110 		sta = mesh_sta_info_get(sdata, mgmt->sa, elems);  in mesh_process_plink_frame()
1111 		if (!sta) {  in mesh_process_plink_frame()
1115 		sta->mesh->plid = plid;  in mesh_process_plink_frame()
1116 	} else if (!sta && event == OPN_RJCT) {  in mesh_process_plink_frame()
1121 	} else if (!sta || event == PLINK_UNDEFINED) {  in mesh_process_plink_frame()
1128 		if (!sta->mesh->plid)  in mesh_process_plink_frame()
1129 			sta->mesh->plid = plid;  in mesh_process_plink_frame()
1131 		sta->mesh->aid = get_unaligned_le16(PLINK_CNF_AID(mgmt));  in mesh_process_plink_frame()
1134 	changed |= mesh_plink_fsm(sdata, sta, event);  in mesh_process_plink_frame()