Lines Matching +full:local +full:- +full:timer +full:- +full:stop
1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright 2002-2005, Instant802 Networks, Inc.
7 * Copyright 2005-2006, Devicescape Software, Inc.
8 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
10 * Copyright 2007-2010, Intel Corporation
11 * Copyright(c) 2015-2017 Intel Deutschland GmbH
12 * Copyright (C) 2018 - 2020 Intel Corporation
20 #include "driver-ops.h"
24 * DOC: TX A-MPDU aggregation
28 * packets with a flag indicating A-MPDU aggregation. The driver
66 struct ieee80211_local *local = sdata->local; in ieee80211_send_addba_request() local
71 skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); in ieee80211_send_addba_request()
76 skb_reserve(skb, local->hw.extra_tx_headroom); in ieee80211_send_addba_request()
78 memcpy(mgmt->da, da, ETH_ALEN); in ieee80211_send_addba_request()
79 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_request()
80 if (sdata->vif.type == NL80211_IFTYPE_AP || in ieee80211_send_addba_request()
81 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || in ieee80211_send_addba_request()
82 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) in ieee80211_send_addba_request()
83 memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_request()
84 else if (sdata->vif.type == NL80211_IFTYPE_STATION) in ieee80211_send_addba_request()
85 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); in ieee80211_send_addba_request()
86 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) in ieee80211_send_addba_request()
87 memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN); in ieee80211_send_addba_request()
89 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | in ieee80211_send_addba_request()
92 skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req)); in ieee80211_send_addba_request()
94 mgmt->u.action.category = WLAN_CATEGORY_BACK; in ieee80211_send_addba_request()
95 mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; in ieee80211_send_addba_request()
97 mgmt->u.action.u.addba_req.dialog_token = dialog_token; in ieee80211_send_addba_request()
98 capab = (u16)(1 << 0); /* bit 0 A-MSDU support */ in ieee80211_send_addba_request()
103 mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); in ieee80211_send_addba_request()
105 mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout); in ieee80211_send_addba_request()
106 mgmt->u.action.u.addba_req.start_seq_num = in ieee80211_send_addba_request()
115 struct ieee80211_local *local = sdata->local; in ieee80211_send_bar() local
120 skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom); in ieee80211_send_bar()
124 skb_reserve(skb, local->hw.extra_tx_headroom); in ieee80211_send_bar()
126 bar->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | in ieee80211_send_bar()
128 memcpy(bar->ra, ra, ETH_ALEN); in ieee80211_send_bar()
129 memcpy(bar->ta, sdata->vif.addr, ETH_ALEN); in ieee80211_send_bar()
133 bar->control = cpu_to_le16(bar_control); in ieee80211_send_bar()
134 bar->start_seq_num = cpu_to_le16(ssn); in ieee80211_send_bar()
136 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | in ieee80211_send_bar()
145 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ieee80211_assign_tid_tx()
146 lockdep_assert_held(&sta->lock); in ieee80211_assign_tid_tx()
147 rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], tid_tx); in ieee80211_assign_tid_tx()
153 * refcount the global queue stop caused by that in order
155 * setup or teardown re-enables queues before the other is
164 int queue = sdata->vif.hw_queue[ieee80211_ac_from_tid(tid)]; in __acquires()
168 if (atomic_inc_return(&sdata->local->agg_queue_stop[queue]) == 1) in __acquires()
170 &sdata->local->hw, queue, in __acquires()
179 int queue = sdata->vif.hw_queue[ieee80211_ac_from_tid(tid)]; in __releases()
181 if (atomic_dec_return(&sdata->local->agg_queue_stop[queue]) == 0) in __releases()
183 &sdata->local->hw, queue, in __releases()
192 struct ieee80211_txq *txq = sta->sta.txq[tid]; in ieee80211_agg_stop_txq()
201 sdata = vif_to_sdata(txq->vif); in ieee80211_agg_stop_txq()
202 fq = &sdata->local->fq; in ieee80211_agg_stop_txq()
205 spin_lock_bh(&fq->lock); in ieee80211_agg_stop_txq()
206 set_bit(IEEE80211_TXQ_STOP, &txqi->flags); in ieee80211_agg_stop_txq()
207 spin_unlock_bh(&fq->lock); in ieee80211_agg_stop_txq()
213 struct ieee80211_txq *txq = sta->sta.txq[tid]; in ieee80211_agg_start_txq()
222 set_bit(IEEE80211_TXQ_AMPDU, &txqi->flags); in ieee80211_agg_start_txq()
224 clear_bit(IEEE80211_TXQ_AMPDU, &txqi->flags); in ieee80211_agg_start_txq()
226 clear_bit(IEEE80211_TXQ_STOP, &txqi->flags); in ieee80211_agg_start_txq()
229 schedule_and_wake_txq(sta->sdata->local, txqi); in ieee80211_agg_start_txq()
235 * splice packets from the STA's pending to the local pending,
242 struct ieee80211_local *local = sdata->local; in __acquires() local
243 int queue = sdata->vif.hw_queue[ieee80211_ac_from_tid(tid)]; in __acquires()
253 if (!skb_queue_empty(&tid_tx->pending)) { in __acquires()
254 spin_lock_irqsave(&local->queue_stop_reason_lock, flags); in __acquires()
256 skb_queue_splice_tail_init(&tid_tx->pending, in __acquires()
257 &local->pending[queue]); in __acquires()
258 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); in __acquires()
272 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ieee80211_remove_tid_tx()
273 lockdep_assert_held(&sta->lock); in ieee80211_remove_tid_tx()
281 * stop the queue now, we will not get any more packets, and any in ieee80211_remove_tid_tx()
287 ieee80211_agg_splice_packets(sta->sdata, tid_tx, tid); in ieee80211_remove_tid_tx()
292 ieee80211_agg_splice_finish(sta->sdata, tid); in ieee80211_remove_tid_tx()
301 struct ieee80211_local *local = sta->local; in ___ieee80211_stop_tx_ba_session() local
304 .sta = &sta->sta, in ___ieee80211_stop_tx_ba_session()
313 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ___ieee80211_stop_tx_ba_session()
326 return -EINVAL; in ___ieee80211_stop_tx_ba_session()
329 spin_lock_bh(&sta->lock); in ___ieee80211_stop_tx_ba_session()
332 tid_tx = sta->ampdu_mlme.tid_start_tx[tid]; in ___ieee80211_stop_tx_ba_session()
334 sta->ampdu_mlme.tid_start_tx[tid] = NULL; in ___ieee80211_stop_tx_ba_session()
338 spin_unlock_bh(&sta->lock); in ___ieee80211_stop_tx_ba_session()
339 return -ENOENT; in ___ieee80211_stop_tx_ba_session()
343 * if we're already stopping ignore any new requests to stop in ___ieee80211_stop_tx_ba_session()
346 if (test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { in ___ieee80211_stop_tx_ba_session()
347 spin_unlock_bh(&sta->lock); in ___ieee80211_stop_tx_ba_session()
349 return -EALREADY; in ___ieee80211_stop_tx_ba_session()
351 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_stop_tx_ba_session()
356 if (test_bit(HT_AGG_STATE_WANT_START, &tid_tx->state)) { in ___ieee80211_stop_tx_ba_session()
359 spin_unlock_bh(&sta->lock); in ___ieee80211_stop_tx_ba_session()
364 set_bit(HT_AGG_STATE_STOPPING, &tid_tx->state); in ___ieee80211_stop_tx_ba_session()
368 spin_unlock_bh(&sta->lock); in ___ieee80211_stop_tx_ba_session()
370 ht_dbg(sta->sdata, "Tx BA session stop requested for %pM tid %u\n", in ___ieee80211_stop_tx_ba_session()
371 sta->sta.addr, tid); in ___ieee80211_stop_tx_ba_session()
373 del_timer_sync(&tid_tx->addba_resp_timer); in ___ieee80211_stop_tx_ba_session()
374 del_timer_sync(&tid_tx->session_timer); in ___ieee80211_stop_tx_ba_session()
378 * to the driver but are put onto tid_tx->pending instead, in ___ieee80211_stop_tx_ba_session()
381 clear_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state); in ___ieee80211_stop_tx_ba_session()
395 if (!local->in_reconfig) in ___ieee80211_stop_tx_ba_session()
398 tid_tx->stop_initiator = reason == AGG_STOP_PEER_REQUEST ? in ___ieee80211_stop_tx_ba_session()
401 tid_tx->tx_stop = reason == AGG_STOP_LOCAL_REQUEST; in ___ieee80211_stop_tx_ba_session()
403 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_stop_tx_ba_session()
427 * After sending add Block Ack request we activated a timer until
429 * If this timer expires sta_addba_resp_timer_expired will be executed.
434 struct sta_info *sta = tid_tx->sta; in sta_addba_resp_timer_expired()
435 u8 tid = tid_tx->tid; in sta_addba_resp_timer_expired()
438 if (test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) { in sta_addba_resp_timer_expired()
439 ht_dbg(sta->sdata, in sta_addba_resp_timer_expired()
440 "timer expired on %pM tid %d not expecting addBA response\n", in sta_addba_resp_timer_expired()
441 sta->sta.addr, tid); in sta_addba_resp_timer_expired()
445 ht_dbg(sta->sdata, "addBA response timer expired on %pM tid %d\n", in sta_addba_resp_timer_expired()
446 sta->sta.addr, tid); in sta_addba_resp_timer_expired()
448 ieee80211_stop_tx_ba_session(&sta->sta, tid); in sta_addba_resp_timer_expired()
454 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_send_addba_with_timeout()
455 struct ieee80211_local *local = sta->local; in ieee80211_send_addba_with_timeout() local
456 u8 tid = tid_tx->tid; in ieee80211_send_addba_with_timeout()
459 /* activate the timer for the recipient's addBA response */ in ieee80211_send_addba_with_timeout()
460 mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL); in ieee80211_send_addba_with_timeout()
461 ht_dbg(sdata, "activated addBA response timer on %pM tid %d\n", in ieee80211_send_addba_with_timeout()
462 sta->sta.addr, tid); in ieee80211_send_addba_with_timeout()
464 spin_lock_bh(&sta->lock); in ieee80211_send_addba_with_timeout()
465 sta->ampdu_mlme.last_addba_req_time[tid] = jiffies; in ieee80211_send_addba_with_timeout()
466 sta->ampdu_mlme.addba_req_num[tid]++; in ieee80211_send_addba_with_timeout()
467 spin_unlock_bh(&sta->lock); in ieee80211_send_addba_with_timeout()
469 if (sta->sta.he_cap.has_he) { in ieee80211_send_addba_with_timeout()
470 buf_size = local->hw.max_tx_aggregation_subframes; in ieee80211_send_addba_with_timeout()
482 ieee80211_send_addba_request(sdata, sta->sta.addr, tid, in ieee80211_send_addba_with_timeout()
483 tid_tx->dialog_token, in ieee80211_send_addba_with_timeout()
484 sta->tid_seq[tid] >> 4, in ieee80211_send_addba_with_timeout()
485 buf_size, tid_tx->timeout); in ieee80211_send_addba_with_timeout()
487 WARN_ON(test_and_set_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)); in ieee80211_send_addba_with_timeout()
493 struct ieee80211_local *local = sta->local; in ieee80211_tx_ba_session_handle_start() local
494 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_tx_ba_session_handle_start()
496 .sta = &sta->sta, in ieee80211_tx_ba_session_handle_start()
512 clear_bit(HT_AGG_STATE_WANT_START, &tid_tx->state); in ieee80211_tx_ba_session_handle_start()
518 * we have a valid starting sequence number and that in-flight in ieee80211_tx_ba_session_handle_start()
524 params.ssn = sta->tid_seq[tid] >> 4; in ieee80211_tx_ba_session_handle_start()
525 ret = drv_ampdu_action(local, sdata, ¶ms); in ieee80211_tx_ba_session_handle_start()
534 set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state); in ieee80211_tx_ba_session_handle_start()
537 "BA request denied - HW unavailable for %pM tid %d\n", in ieee80211_tx_ba_session_handle_start()
538 sta->sta.addr, tid); in ieee80211_tx_ba_session_handle_start()
539 spin_lock_bh(&sta->lock); in ieee80211_tx_ba_session_handle_start()
543 spin_unlock_bh(&sta->lock); in ieee80211_tx_ba_session_handle_start()
555 * After accepting the AddBA Response we activated a timer,
561 struct sta_info *sta = tid_tx->sta; in sta_tx_agg_session_timer_expired()
562 u8 tid = tid_tx->tid; in sta_tx_agg_session_timer_expired()
565 if (test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { in sta_tx_agg_session_timer_expired()
569 timeout = tid_tx->last_tx + TU_TO_JIFFIES(tid_tx->timeout); in sta_tx_agg_session_timer_expired()
571 mod_timer(&tid_tx->session_timer, timeout); in sta_tx_agg_session_timer_expired()
575 ht_dbg(sta->sdata, "tx session timer expired on %pM tid %d\n", in sta_tx_agg_session_timer_expired()
576 sta->sta.addr, tid); in sta_tx_agg_session_timer_expired()
578 ieee80211_stop_tx_ba_session(&sta->sta, tid); in sta_tx_agg_session_timer_expired()
585 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_start_tx_ba_session()
586 struct ieee80211_local *local = sdata->local; in ieee80211_start_tx_ba_session() local
592 if (WARN(sta->reserved_tid == tid, in ieee80211_start_tx_ba_session()
594 return -EINVAL; in ieee80211_start_tx_ba_session()
596 if (!pubsta->ht_cap.ht_supported && in ieee80211_start_tx_ba_session()
597 sta->sdata->vif.bss_conf.chandef.chan->band != NL80211_BAND_6GHZ) in ieee80211_start_tx_ba_session()
598 return -EINVAL; in ieee80211_start_tx_ba_session()
600 if (WARN_ON_ONCE(!local->ops->ampdu_action)) in ieee80211_start_tx_ba_session()
601 return -EINVAL; in ieee80211_start_tx_ba_session()
604 !ieee80211_hw_check(&local->hw, AMPDU_AGGREGATION) || in ieee80211_start_tx_ba_session()
605 ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW)) in ieee80211_start_tx_ba_session()
606 return -EINVAL; in ieee80211_start_tx_ba_session()
609 return -EINVAL; in ieee80211_start_tx_ba_session()
612 pubsta->addr, tid); in ieee80211_start_tx_ba_session()
614 if (sdata->vif.type != NL80211_IFTYPE_STATION && in ieee80211_start_tx_ba_session()
615 sdata->vif.type != NL80211_IFTYPE_MESH_POINT && in ieee80211_start_tx_ba_session()
616 sdata->vif.type != NL80211_IFTYPE_AP_VLAN && in ieee80211_start_tx_ba_session()
617 sdata->vif.type != NL80211_IFTYPE_AP && in ieee80211_start_tx_ba_session()
618 sdata->vif.type != NL80211_IFTYPE_ADHOC) in ieee80211_start_tx_ba_session()
619 return -EINVAL; in ieee80211_start_tx_ba_session()
623 "BA sessions blocked - Denying BA session request %pM tid %d\n", in ieee80211_start_tx_ba_session()
624 sta->sta.addr, tid); in ieee80211_start_tx_ba_session()
625 return -EINVAL; in ieee80211_start_tx_ba_session()
629 * 802.11n-2009 11.5.1.1: If the initiating STA is an HT STA, is a in ieee80211_start_tx_ba_session()
640 if (sta->sdata->vif.type == NL80211_IFTYPE_ADHOC && in ieee80211_start_tx_ba_session()
641 !sta->sta.ht_cap.ht_supported) { in ieee80211_start_tx_ba_session()
643 "BA request denied - IBSS STA %pM does not advertise HT support\n", in ieee80211_start_tx_ba_session()
644 pubsta->addr); in ieee80211_start_tx_ba_session()
645 return -EINVAL; in ieee80211_start_tx_ba_session()
648 spin_lock_bh(&sta->lock); in ieee80211_start_tx_ba_session()
650 /* we have tried too many times, receiver does not want A-MPDU */ in ieee80211_start_tx_ba_session()
651 if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) { in ieee80211_start_tx_ba_session()
652 ret = -EBUSY; in ieee80211_start_tx_ba_session()
661 if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_BURST_RETRIES && in ieee80211_start_tx_ba_session()
662 time_before(jiffies, sta->ampdu_mlme.last_addba_req_time[tid] + in ieee80211_start_tx_ba_session()
665 "BA request denied - %d failed requests on %pM tid %u\n", in ieee80211_start_tx_ba_session()
666 sta->ampdu_mlme.addba_req_num[tid], sta->sta.addr, tid); in ieee80211_start_tx_ba_session()
667 ret = -EBUSY; in ieee80211_start_tx_ba_session()
673 if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) { in ieee80211_start_tx_ba_session()
675 "BA request denied - session is not idle on %pM tid %u\n", in ieee80211_start_tx_ba_session()
676 sta->sta.addr, tid); in ieee80211_start_tx_ba_session()
677 ret = -EAGAIN; in ieee80211_start_tx_ba_session()
681 /* prepare A-MPDU MLME for Tx aggregation */ in ieee80211_start_tx_ba_session()
684 ret = -ENOMEM; in ieee80211_start_tx_ba_session()
688 skb_queue_head_init(&tid_tx->pending); in ieee80211_start_tx_ba_session()
689 __set_bit(HT_AGG_STATE_WANT_START, &tid_tx->state); in ieee80211_start_tx_ba_session()
691 tid_tx->timeout = timeout; in ieee80211_start_tx_ba_session()
692 tid_tx->sta = sta; in ieee80211_start_tx_ba_session()
693 tid_tx->tid = tid; in ieee80211_start_tx_ba_session()
695 /* response timer */ in ieee80211_start_tx_ba_session()
696 timer_setup(&tid_tx->addba_resp_timer, sta_addba_resp_timer_expired, 0); in ieee80211_start_tx_ba_session()
698 /* tx timer */ in ieee80211_start_tx_ba_session()
699 timer_setup(&tid_tx->session_timer, in ieee80211_start_tx_ba_session()
703 sta->ampdu_mlme.dialog_token_allocator++; in ieee80211_start_tx_ba_session()
704 tid_tx->dialog_token = sta->ampdu_mlme.dialog_token_allocator; in ieee80211_start_tx_ba_session()
710 sta->ampdu_mlme.tid_start_tx[tid] = tid_tx; in ieee80211_start_tx_ba_session()
712 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_start_tx_ba_session()
716 spin_unlock_bh(&sta->lock); in ieee80211_start_tx_ba_session()
721 static void ieee80211_agg_tx_operational(struct ieee80211_local *local, in ieee80211_agg_tx_operational() argument
726 .sta = &sta->sta, in ieee80211_agg_tx_operational()
733 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ieee80211_agg_tx_operational()
736 params.buf_size = tid_tx->buf_size; in ieee80211_agg_tx_operational()
737 params.amsdu = tid_tx->amsdu; in ieee80211_agg_tx_operational()
739 ht_dbg(sta->sdata, "Aggregation is on for %pM tid %d\n", in ieee80211_agg_tx_operational()
740 sta->sta.addr, tid); in ieee80211_agg_tx_operational()
742 drv_ampdu_action(local, sta->sdata, ¶ms); in ieee80211_agg_tx_operational()
748 spin_lock_bh(&sta->lock); in ieee80211_agg_tx_operational()
750 ieee80211_agg_splice_packets(sta->sdata, tid_tx, tid); in ieee80211_agg_tx_operational()
753 * in the TX path, and lets it go lock-free in in ieee80211_agg_tx_operational()
756 set_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state); in ieee80211_agg_tx_operational()
757 ieee80211_agg_splice_finish(sta->sdata, tid); in ieee80211_agg_tx_operational()
759 spin_unlock_bh(&sta->lock); in ieee80211_agg_tx_operational()
767 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_start_tx_ba_cb()
768 struct ieee80211_local *local = sdata->local; in ieee80211_start_tx_ba_cb() local
770 if (WARN_ON(test_and_set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state))) in ieee80211_start_tx_ba_cb()
773 if (!test_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)) { in ieee80211_start_tx_ba_cb()
779 if (test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) in ieee80211_start_tx_ba_cb()
780 ieee80211_agg_tx_operational(local, sta, tid); in ieee80211_start_tx_ba_cb()
801 tid_tx = rcu_dereference((*sta)->ampdu_mlme.tid_tx[tid]); in ieee80211_lookup_tid_tx()
813 struct ieee80211_local *local = sdata->local; in ieee80211_start_tx_ba_cb_irqsafe() local
824 set_bit(HT_AGG_STATE_START_CB, &tid_tx->state); in ieee80211_start_tx_ba_cb_irqsafe()
825 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_start_tx_ba_cb_irqsafe()
836 mutex_lock(&sta->ampdu_mlme.mtx); in __ieee80211_stop_tx_ba_session()
840 mutex_unlock(&sta->ampdu_mlme.mtx); in __ieee80211_stop_tx_ba_session()
848 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_stop_tx_ba_session()
849 struct ieee80211_local *local = sdata->local; in ieee80211_stop_tx_ba_session() local
855 if (!local->ops->ampdu_action) in ieee80211_stop_tx_ba_session()
856 return -EINVAL; in ieee80211_stop_tx_ba_session()
859 return -EINVAL; in ieee80211_stop_tx_ba_session()
861 spin_lock_bh(&sta->lock); in ieee80211_stop_tx_ba_session()
865 ret = -ENOENT; in ieee80211_stop_tx_ba_session()
869 WARN(sta->reserved_tid == tid, in ieee80211_stop_tx_ba_session()
870 "Requested to stop BA session on reserved tid=%d", tid); in ieee80211_stop_tx_ba_session()
872 if (test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { in ieee80211_stop_tx_ba_session()
878 set_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state); in ieee80211_stop_tx_ba_session()
879 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_stop_tx_ba_session()
882 spin_unlock_bh(&sta->lock); in ieee80211_stop_tx_ba_session()
890 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_stop_tx_ba_cb()
894 sta->sta.addr, tid); in ieee80211_stop_tx_ba_cb()
896 spin_lock_bh(&sta->lock); in ieee80211_stop_tx_ba_cb()
898 if (!test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { in ieee80211_stop_tx_ba_cb()
900 "unexpected callback to A-MPDU stop for %pM tid %d\n", in ieee80211_stop_tx_ba_cb()
901 sta->sta.addr, tid); in ieee80211_stop_tx_ba_cb()
905 if (tid_tx->stop_initiator == WLAN_BACK_INITIATOR && tid_tx->tx_stop) in ieee80211_stop_tx_ba_cb()
911 spin_unlock_bh(&sta->lock); in ieee80211_stop_tx_ba_cb()
914 ieee80211_send_delba(sdata, sta->sta.addr, tid, in ieee80211_stop_tx_ba_cb()
922 struct ieee80211_local *local = sdata->local; in ieee80211_stop_tx_ba_cb_irqsafe() local
933 set_bit(HT_AGG_STATE_STOP_CB, &tid_tx->state); in ieee80211_stop_tx_ba_cb_irqsafe()
934 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_stop_tx_ba_cb_irqsafe()
941 void ieee80211_process_addba_resp(struct ieee80211_local *local, in ieee80211_process_addba_resp() argument
951 capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); in ieee80211_process_addba_resp()
955 buf_size = min(buf_size, local->hw.max_tx_aggregation_subframes); in ieee80211_process_addba_resp()
957 txq = sta->sta.txq[tid]; in ieee80211_process_addba_resp()
959 set_bit(IEEE80211_TXQ_NO_AMSDU, &to_txq_info(txq)->flags); in ieee80211_process_addba_resp()
961 mutex_lock(&sta->ampdu_mlme.mtx); in ieee80211_process_addba_resp()
967 if (mgmt->u.action.u.addba_resp.dialog_token != tid_tx->dialog_token) { in ieee80211_process_addba_resp()
968 ht_dbg(sta->sdata, "wrong addBA response token, %pM tid %d\n", in ieee80211_process_addba_resp()
969 sta->sta.addr, tid); in ieee80211_process_addba_resp()
973 del_timer_sync(&tid_tx->addba_resp_timer); in ieee80211_process_addba_resp()
975 ht_dbg(sta->sdata, "switched off addBA timer for %pM tid %d\n", in ieee80211_process_addba_resp()
976 sta->sta.addr, tid); in ieee80211_process_addba_resp()
980 * caused WANT_STOP to be set. If the stop then was already in ieee80211_process_addba_resp()
983 if (test_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state) || in ieee80211_process_addba_resp()
984 test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { in ieee80211_process_addba_resp()
985 ht_dbg(sta->sdata, in ieee80211_process_addba_resp()
987 sta->sta.addr, tid); in ieee80211_process_addba_resp()
992 * IEEE 802.11-2007 7.3.1.14: in ieee80211_process_addba_resp()
997 if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) in ieee80211_process_addba_resp()
1000 &tid_tx->state)) { in ieee80211_process_addba_resp()
1005 tid_tx->buf_size = buf_size; in ieee80211_process_addba_resp()
1006 tid_tx->amsdu = amsdu; in ieee80211_process_addba_resp()
1008 if (test_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state)) in ieee80211_process_addba_resp()
1009 ieee80211_agg_tx_operational(local, sta, tid); in ieee80211_process_addba_resp()
1011 sta->ampdu_mlme.addba_req_num[tid] = 0; in ieee80211_process_addba_resp()
1013 tid_tx->timeout = in ieee80211_process_addba_resp()
1014 le16_to_cpu(mgmt->u.action.u.addba_resp.timeout); in ieee80211_process_addba_resp()
1016 if (tid_tx->timeout) { in ieee80211_process_addba_resp()
1017 mod_timer(&tid_tx->session_timer, in ieee80211_process_addba_resp()
1018 TU_TO_EXP_TIME(tid_tx->timeout)); in ieee80211_process_addba_resp()
1019 tid_tx->last_tx = jiffies; in ieee80211_process_addba_resp()
1027 mutex_unlock(&sta->ampdu_mlme.mtx); in ieee80211_process_addba_resp()