27 	struct ieee80211_local *local = sdata->local;  in ieee80211_offchannel_ps_enable()  local
31 	/* FIXME: what to do when local->pspolling is true? */  in ieee80211_offchannel_ps_enable()
33 	del_timer_sync(&local->dynamic_ps_timer);  in ieee80211_offchannel_ps_enable()
37 	cancel_work_sync(&local->dynamic_ps_enable_work);  in ieee80211_offchannel_ps_enable()
39 	if (local->hw.conf.flags & IEEE80211_CONF_PS) {  in ieee80211_offchannel_ps_enable()
41 		local->hw.conf.flags &= ~IEEE80211_CONF_PS;  in ieee80211_offchannel_ps_enable()
42 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);  in ieee80211_offchannel_ps_enable()
46 	    !ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK))  in ieee80211_offchannel_ps_enable()
57 		ieee80211_send_nullfunc(local, sdata, true);  in ieee80211_offchannel_ps_enable()
63 	struct ieee80211_local *local = sdata->local;  in ieee80211_offchannel_ps_disable()  local
65 	if (!local->ps_sdata)  in ieee80211_offchannel_ps_disable()
66 		ieee80211_send_nullfunc(local, sdata, false);  in ieee80211_offchannel_ps_disable()
67 	else if (local->hw.conf.dynamic_ps_timeout > 0) {  in ieee80211_offchannel_ps_disable()
74 		ieee80211_send_nullfunc(local, sdata, false);  in ieee80211_offchannel_ps_disable()
75 		mod_timer(&local->dynamic_ps_timer, jiffies +  in ieee80211_offchannel_ps_disable()
76 			  msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));  in ieee80211_offchannel_ps_disable()
83 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local)  in ieee80211_offchannel_stop_vifs()  argument
87 	if (WARN_ON(local->use_chanctx))  in ieee80211_offchannel_stop_vifs()
99 	ieee80211_stop_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP,  in ieee80211_offchannel_stop_vifs()
102 	ieee80211_flush_queues(local, NULL, false);  in ieee80211_offchannel_stop_vifs()
104 	mutex_lock(&local->iflist_mtx);  in ieee80211_offchannel_stop_vifs()
105 	list_for_each_entry(sdata, &local->interfaces, list) {  in ieee80211_offchannel_stop_vifs()
129 	mutex_unlock(&local->iflist_mtx);  in ieee80211_offchannel_stop_vifs()
132 void ieee80211_offchannel_return(struct ieee80211_local *local)  in ieee80211_offchannel_return()  argument
136 	if (WARN_ON(local->use_chanctx))  in ieee80211_offchannel_return()
139 	mutex_lock(&local->iflist_mtx);  in ieee80211_offchannel_return()
140 	list_for_each_entry(sdata, &local->interfaces, list) {  in ieee80211_offchannel_return()
162 	mutex_unlock(&local->iflist_mtx);  in ieee80211_offchannel_return()
164 	ieee80211_wake_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP,  in ieee80211_offchannel_return()
176 		ieee80211_free_txskb(&roc->sdata->local->hw, roc->frame);  in ieee80211_roc_notify_destroy()
192 static unsigned long ieee80211_end_finished_rocs(struct ieee80211_local *local,  in ieee80211_end_finished_rocs()  argument
198 	lockdep_assert_held(&local->mtx);  in ieee80211_end_finished_rocs()
200 	list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {  in ieee80211_end_finished_rocs()
223 static bool ieee80211_recalc_sw_work(struct ieee80211_local *local,  in ieee80211_recalc_sw_work()  argument
226 	long dur = ieee80211_end_finished_rocs(local, now);  in ieee80211_recalc_sw_work()
231 	mod_delayed_work(local->workqueue, &local->roc_work, dur);  in ieee80211_recalc_sw_work()
261 	struct ieee80211_local *local =  in ieee80211_hw_roc_start()  local
265 	mutex_lock(&local->mtx);  in ieee80211_hw_roc_start()
267 	list_for_each_entry(roc, &local->roc_list, list) {  in ieee80211_hw_roc_start()
272 		ieee80211_handle_roc_started(roc, local->hw_roc_start_time);  in ieee80211_hw_roc_start()
275 	mutex_unlock(&local->mtx);  in ieee80211_hw_roc_start()
280 	struct ieee80211_local *local = hw_to_local(hw);  in ieee80211_ready_on_channel()  local
282 	local->hw_roc_start_time = jiffies;  in ieee80211_ready_on_channel()
284 	trace_api_ready_on_channel(local);  in ieee80211_ready_on_channel()
286 	ieee80211_queue_work(hw, &local->hw_roc_start);  in ieee80211_ready_on_channel()
290 static void _ieee80211_start_next_roc(struct ieee80211_local *local)  in _ieee80211_start_next_roc()  argument
296 	lockdep_assert_held(&local->mtx);  in _ieee80211_start_next_roc()
298 	if (WARN_ON(list_empty(&local->roc_list)))  in _ieee80211_start_next_roc()
301 	roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,  in _ieee80211_start_next_roc()
311 	list_for_each_entry(tmp, &local->roc_list, list) {  in _ieee80211_start_next_roc()
321 	if (local->ops->remain_on_channel) {  in _ieee80211_start_next_roc()
322 		int ret = drv_remain_on_channel(local, roc->sdata, roc->chan,  in _ieee80211_start_next_roc()
326 			wiphy_warn(local->hw.wiphy,  in _ieee80211_start_next_roc()
332 			list_for_each_entry(tmp, &local->roc_list, list) {  in _ieee80211_start_next_roc()
339 			ieee80211_queue_work(&local->hw, &local->hw_roc_done);  in _ieee80211_start_next_roc()
344 		list_for_each_entry(tmp, &local->roc_list, list) {  in _ieee80211_start_next_roc()
355 		roc->on_channel = roc->chan == local->_oper_chandef.chan &&  in _ieee80211_start_next_roc()
356 				  local->_oper_chandef.width != NL80211_CHAN_WIDTH_5 &&  in _ieee80211_start_next_roc()
357 				  local->_oper_chandef.width != NL80211_CHAN_WIDTH_10;  in _ieee80211_start_next_roc()
360 		ieee80211_recalc_idle(local);  in _ieee80211_start_next_roc()
363 			ieee80211_offchannel_stop_vifs(local);  in _ieee80211_start_next_roc()
365 			local->tmp_channel = roc->chan;  in _ieee80211_start_next_roc()
366 			ieee80211_hw_config(local, 0);  in _ieee80211_start_next_roc()
369 		ieee80211_queue_delayed_work(&local->hw, &local->roc_work,  in _ieee80211_start_next_roc()
373 		list_for_each_entry(tmp, &local->roc_list, list) {  in _ieee80211_start_next_roc()
383 void ieee80211_start_next_roc(struct ieee80211_local *local)  in ieee80211_start_next_roc()  argument
387 	lockdep_assert_held(&local->mtx);  in ieee80211_start_next_roc()
389 	if (list_empty(&local->roc_list)) {  in ieee80211_start_next_roc()
390 		ieee80211_run_deferred_scan(local);  in ieee80211_start_next_roc()
395 	if (local->in_reconfig)  in ieee80211_start_next_roc()
398 	roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,  in ieee80211_start_next_roc()
404 	if (local->ops->remain_on_channel) {  in ieee80211_start_next_roc()
405 		_ieee80211_start_next_roc(local);  in ieee80211_start_next_roc()
408 		ieee80211_queue_delayed_work(&local->hw, &local->roc_work,  in ieee80211_start_next_roc()
413 static void __ieee80211_roc_work(struct ieee80211_local *local)  in __ieee80211_roc_work()  argument
418 	lockdep_assert_held(&local->mtx);  in __ieee80211_roc_work()
420 	if (WARN_ON(local->ops->remain_on_channel))  in __ieee80211_roc_work()
423 	roc = list_first_entry_or_null(&local->roc_list,  in __ieee80211_roc_work()
429 		WARN_ON(local->use_chanctx);  in __ieee80211_roc_work()
430 		_ieee80211_start_next_roc(local);  in __ieee80211_roc_work()
433 		if (ieee80211_recalc_sw_work(local, jiffies))  in __ieee80211_roc_work()
439 			ieee80211_flush_queues(local, NULL, false);  in __ieee80211_roc_work()
441 			local->tmp_channel = NULL;  in __ieee80211_roc_work()
442 			ieee80211_hw_config(local, 0);  in __ieee80211_roc_work()
444 			ieee80211_offchannel_return(local);  in __ieee80211_roc_work()
447 		ieee80211_recalc_idle(local);  in __ieee80211_roc_work()
448 		ieee80211_start_next_roc(local);  in __ieee80211_roc_work()
454 	struct ieee80211_local *local =  in ieee80211_roc_work()  local
457 	mutex_lock(&local->mtx);  in ieee80211_roc_work()
458 	__ieee80211_roc_work(local);  in ieee80211_roc_work()
459 	mutex_unlock(&local->mtx);  in ieee80211_roc_work()
464 	struct ieee80211_local *local =  in ieee80211_hw_roc_done()  local
467 	mutex_lock(&local->mtx);  in ieee80211_hw_roc_done()
469 	ieee80211_end_finished_rocs(local, jiffies);  in ieee80211_hw_roc_done()
472 	ieee80211_start_next_roc(local);  in ieee80211_hw_roc_done()
474 	mutex_unlock(&local->mtx);  in ieee80211_hw_roc_done()
479 	struct ieee80211_local *local = hw_to_local(hw);  in ieee80211_remain_on_channel_expired()  local
481 	trace_api_remain_on_channel_expired(local);  in ieee80211_remain_on_channel_expired()
483 	ieee80211_queue_work(hw, &local->hw_roc_done);  in ieee80211_remain_on_channel_expired()
488 ieee80211_coalesce_hw_started_roc(struct ieee80211_local *local,  in ieee80211_coalesce_hw_started_roc()  argument
527 static int ieee80211_start_roc_work(struct ieee80211_local *local,  in ieee80211_start_roc_work()  argument
538 	lockdep_assert_held(&local->mtx);  in ieee80211_start_roc_work()
544 	if (local->use_chanctx && !local->ops->remain_on_channel)  in ieee80211_start_roc_work()
575 		roc->cookie = ieee80211_mgmt_tx_cookie(local);  in ieee80211_start_roc_work()
582 	if (list_empty(&local->roc_list) &&  in ieee80211_start_roc_work()
583 	    !local->scanning && !ieee80211_is_radar_required(local)) {  in ieee80211_start_roc_work()
585 		if (!local->ops->remain_on_channel) {  in ieee80211_start_roc_work()
586 			list_add_tail(&roc->list, &local->roc_list);  in ieee80211_start_roc_work()
587 			ieee80211_queue_delayed_work(&local->hw,  in ieee80211_start_roc_work()
588 						     &local->roc_work, 0);  in ieee80211_start_roc_work()
593 			ret = drv_remain_on_channel(local, sdata, channel,  in ieee80211_start_roc_work()
600 			list_add_tail(&roc->list, &local->roc_list);  in ieee80211_start_roc_work()
608 	list_for_each_entry(tmp, &local->roc_list, list) {  in ieee80211_start_roc_work()
625 		if (!local->ops->remain_on_channel) {  in ieee80211_start_roc_work()
637 			struct wiphy *wiphy = local->hw.wiphy;  in ieee80211_start_roc_work()
649 			ieee80211_recalc_sw_work(local, now);  in ieee80211_start_roc_work()
653 		queued = ieee80211_coalesce_hw_started_roc(local, roc, tmp);  in ieee80211_start_roc_work()
665 		list_add_tail(&roc->list, &local->roc_list);  in ieee80211_start_roc_work()
675 	struct ieee80211_local *local = sdata->local;  in ieee80211_remain_on_channel()  local
678 	mutex_lock(&local->mtx);  in ieee80211_remain_on_channel()
679 	ret = ieee80211_start_roc_work(local, sdata, chan,  in ieee80211_remain_on_channel()
682 	mutex_unlock(&local->mtx);  in ieee80211_remain_on_channel()
687 static int ieee80211_cancel_roc(struct ieee80211_local *local,  in ieee80211_cancel_roc()  argument
696 	flush_work(&local->hw_roc_start);  in ieee80211_cancel_roc()
698 	mutex_lock(&local->mtx);  in ieee80211_cancel_roc()
699 	list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {  in ieee80211_cancel_roc()
710 		mutex_unlock(&local->mtx);  in ieee80211_cancel_roc()
719 	if (local->ops->remain_on_channel) {  in ieee80211_cancel_roc()
720 		ret = drv_cancel_remain_on_channel(local, roc->sdata);  in ieee80211_cancel_roc()
722 			mutex_unlock(&local->mtx);  in ieee80211_cancel_roc()
731 		list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {  in ieee80211_cancel_roc()
742 		ieee80211_start_next_roc(local);  in ieee80211_cancel_roc()
746 		mod_delayed_work(local->workqueue, &local->roc_work, 0);  in ieee80211_cancel_roc()
750 	mutex_unlock(&local->mtx);  in ieee80211_cancel_roc()
759 	struct ieee80211_local *local = sdata->local;  in ieee80211_cancel_remain_on_channel()  local
761 	return ieee80211_cancel_roc(local, cookie, false);  in ieee80211_cancel_remain_on_channel()
768 	struct ieee80211_local *local = sdata->local;  in ieee80211_mgmt_tx()  local
821 		     local->ops->remain_on_channel &&  in ieee80211_mgmt_tx()
841 	mutex_lock(&local->mtx);  in ieee80211_mgmt_tx()
869 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);  in ieee80211_mgmt_tx()
874 	skb_reserve(skb, local->hw.extra_tx_headroom);  in ieee80211_mgmt_tx()
912 		ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_KERNEL);  in ieee80211_mgmt_tx()
934 	if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))  in ieee80211_mgmt_tx()
936 			local->hw.offchannel_tx_hw_queue;  in ieee80211_mgmt_tx()
939 	ret = ieee80211_start_roc_work(local, sdata, params->chan,  in ieee80211_mgmt_tx()
943 		ieee80211_free_txskb(&local->hw, skb);  in ieee80211_mgmt_tx()
945 	mutex_unlock(&local->mtx);  in ieee80211_mgmt_tx()
952 	struct ieee80211_local *local = wiphy_priv(wiphy);  in ieee80211_mgmt_tx_cancel_wait()  local
954 	return ieee80211_cancel_roc(local, cookie, true);  in ieee80211_mgmt_tx_cancel_wait()
957 void ieee80211_roc_setup(struct ieee80211_local *local)  in ieee80211_roc_setup()  argument
959 	INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start);  in ieee80211_roc_setup()
960 	INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done);  in ieee80211_roc_setup()
961 	INIT_DELAYED_WORK(&local->roc_work, ieee80211_roc_work);  in ieee80211_roc_setup()
962 	INIT_LIST_HEAD(&local->roc_list);  in ieee80211_roc_setup()
965 void ieee80211_roc_purge(struct ieee80211_local *local,  in ieee80211_roc_purge()  argument
971 	mutex_lock(&local->mtx);  in ieee80211_roc_purge()
972 	list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {  in ieee80211_roc_purge()
977 			if (local->ops->remain_on_channel) {  in ieee80211_roc_purge()
979 				drv_cancel_remain_on_channel(local, sdata);  in ieee80211_roc_purge()
990 		__ieee80211_roc_work(local);  in ieee80211_roc_purge()
991 	mutex_unlock(&local->mtx);  in ieee80211_roc_purge()