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) 2018-2021 Intel Corporation
16 * DOC: RX A-MPDU aggregation
19 * @ampdu_action callback that is invoked to start/stop any
20 * block-ack sessions for RX aggregation.
29 * to de-aggregate frames and pass them up one by one to mac80211,
43 #include "driver-ops.h"
51 for (i = 0; i < tid_rx->buf_size; i++) in ieee80211_free_tid_rx()
52 __skb_queue_purge(&tid_rx->reorder_buf[i]); in ieee80211_free_tid_rx()
53 kfree(tid_rx->reorder_buf); in ieee80211_free_tid_rx()
54 kfree(tid_rx->reorder_time); in ieee80211_free_tid_rx()
61 struct ieee80211_local *local = sta->local; in ___ieee80211_stop_rx_ba_session() local
64 .sta = &sta->sta, in ___ieee80211_stop_rx_ba_session()
72 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ___ieee80211_stop_rx_ba_session()
74 tid_rx = rcu_dereference_protected(sta->ampdu_mlme.tid_rx[tid], in ___ieee80211_stop_rx_ba_session()
75 lockdep_is_held(&sta->ampdu_mlme.mtx)); in ___ieee80211_stop_rx_ba_session()
77 if (!test_bit(tid, sta->ampdu_mlme.agg_session_valid)) in ___ieee80211_stop_rx_ba_session()
80 RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL); in ___ieee80211_stop_rx_ba_session()
81 __clear_bit(tid, sta->ampdu_mlme.agg_session_valid); in ___ieee80211_stop_rx_ba_session()
83 ht_dbg(sta->sdata, in ___ieee80211_stop_rx_ba_session()
84 "Rx BA session stop requested for %pM tid %u %s reason: %d\n", in ___ieee80211_stop_rx_ba_session()
85 sta->sta.addr, tid, in ___ieee80211_stop_rx_ba_session()
89 if (drv_ampdu_action(local, sta->sdata, ¶ms)) in ___ieee80211_stop_rx_ba_session()
90 sdata_info(sta->sdata, in ___ieee80211_stop_rx_ba_session()
91 "HW problem - can not stop rx aggregation for %pM tid %d\n", in ___ieee80211_stop_rx_ba_session()
92 sta->sta.addr, tid); in ___ieee80211_stop_rx_ba_session()
96 ieee80211_send_delba(sta->sdata, sta->sta.addr, in ___ieee80211_stop_rx_ba_session()
100 * return here in case tid_rx is not assigned - which will happen if in ___ieee80211_stop_rx_ba_session()
106 del_timer_sync(&tid_rx->session_timer); in ___ieee80211_stop_rx_ba_session()
108 /* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */ in ___ieee80211_stop_rx_ba_session()
109 spin_lock_bh(&tid_rx->reorder_lock); in ___ieee80211_stop_rx_ba_session()
110 tid_rx->removed = true; in ___ieee80211_stop_rx_ba_session()
111 spin_unlock_bh(&tid_rx->reorder_lock); in ___ieee80211_stop_rx_ba_session()
112 del_timer_sync(&tid_rx->reorder_timer); in ___ieee80211_stop_rx_ba_session()
114 call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx); in ___ieee80211_stop_rx_ba_session()
120 mutex_lock(&sta->ampdu_mlme.mtx); in __ieee80211_stop_rx_ba_session()
122 mutex_unlock(&sta->ampdu_mlme.mtx); in __ieee80211_stop_rx_ba_session()
141 set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested); in ieee80211_stop_rx_ba_session()
143 ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); in ieee80211_stop_rx_ba_session()
149 * After accepting the AddBA Request we activated a timer,
155 struct sta_info *sta = tid_rx->sta; in sta_rx_agg_session_timer_expired()
156 u8 tid = tid_rx->tid; in sta_rx_agg_session_timer_expired()
159 timeout = tid_rx->last_rx + TU_TO_JIFFIES(tid_rx->timeout); in sta_rx_agg_session_timer_expired()
161 mod_timer(&tid_rx->session_timer, timeout); in sta_rx_agg_session_timer_expired()
165 ht_dbg(sta->sdata, "RX session timer expired on %pM tid %d\n", in sta_rx_agg_session_timer_expired()
166 sta->sta.addr, tid); in sta_rx_agg_session_timer_expired()
168 set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); in sta_rx_agg_session_timer_expired()
169 ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); in sta_rx_agg_session_timer_expired()
177 ieee80211_release_reorder_timeout(tid_rx->sta, tid_rx->tid); in sta_rx_agg_reorder_timer_expired()
195 ieee80211_vif_type_p2p(&sdata->vif)); in ieee80211_add_addbaext()
203 resp->data = req->data & IEEE80211_ADDBA_EXT_NO_FRAG; in ieee80211_add_addbaext()
205 frag_level = u32_get_bits(req->data, in ieee80211_add_addbaext()
207 cap_frag_level = u32_get_bits(he_cap->he_cap_elem.mac_cap_info[0], in ieee80211_add_addbaext()
211 resp->data |= u8_encode_bits(frag_level, in ieee80211_add_addbaext()
220 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_send_addba_resp()
221 struct ieee80211_local *local = sdata->local; in ieee80211_send_addba_resp() local
224 bool amsdu = ieee80211_hw_check(&local->hw, SUPPORTS_AMSDU_IN_AMPDU); in ieee80211_send_addba_resp()
229 local->hw.extra_tx_headroom); in ieee80211_send_addba_resp()
233 skb_reserve(skb, local->hw.extra_tx_headroom); in ieee80211_send_addba_resp()
235 memcpy(mgmt->da, da, ETH_ALEN); in ieee80211_send_addba_resp()
236 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_resp()
237 if (sdata->vif.type == NL80211_IFTYPE_AP || in ieee80211_send_addba_resp()
238 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || in ieee80211_send_addba_resp()
239 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) in ieee80211_send_addba_resp()
240 memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_resp()
241 else if (sdata->vif.type == NL80211_IFTYPE_STATION) in ieee80211_send_addba_resp()
242 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); in ieee80211_send_addba_resp()
243 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) in ieee80211_send_addba_resp()
244 memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN); in ieee80211_send_addba_resp()
246 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | in ieee80211_send_addba_resp()
249 skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); in ieee80211_send_addba_resp()
250 mgmt->u.action.category = WLAN_CATEGORY_BACK; in ieee80211_send_addba_resp()
251 mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; in ieee80211_send_addba_resp()
252 mgmt->u.action.u.addba_resp.dialog_token = dialog_token; in ieee80211_send_addba_resp()
254 capab = (u16)(amsdu << 0); /* bit 0 A-MSDU support */ in ieee80211_send_addba_resp()
259 mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); in ieee80211_send_addba_resp()
260 mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); in ieee80211_send_addba_resp()
261 mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); in ieee80211_send_addba_resp()
263 if (sta->sta.he_cap.has_he && addbaext) in ieee80211_send_addba_resp()
275 struct ieee80211_local *local = sta->sdata->local; in ___ieee80211_start_rx_ba_session() local
278 .sta = &sta->sta, in ___ieee80211_start_rx_ba_session()
285 int i, ret = -EOPNOTSUPP; in ___ieee80211_start_rx_ba_session()
290 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
292 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
296 if (!sta->sta.ht_cap.ht_supported && in ___ieee80211_start_rx_ba_session()
297 sta->sdata->vif.bss_conf.chandef.chan->band != NL80211_BAND_6GHZ) { in ___ieee80211_start_rx_ba_session()
298 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
300 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
306 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
307 "Suspend in progress - Denying ADDBA request (%pM tid %d)\n", in ___ieee80211_start_rx_ba_session()
308 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
312 if (sta->sta.he_cap.has_he) in ___ieee80211_start_rx_ba_session()
322 (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || in ___ieee80211_start_rx_ba_session()
325 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
327 sta->sta.addr, tid, ba_policy, buf_size); in ___ieee80211_start_rx_ba_session()
335 if (buf_size > sta->sta.max_rx_aggregation_subframes) in ___ieee80211_start_rx_ba_session()
336 buf_size = sta->sta.max_rx_aggregation_subframes; in ___ieee80211_start_rx_ba_session()
339 ht_dbg(sta->sdata, "AddBA Req buf_size=%d for %pM\n", in ___ieee80211_start_rx_ba_session()
340 buf_size, sta->sta.addr); in ___ieee80211_start_rx_ba_session()
343 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ___ieee80211_start_rx_ba_session()
345 if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) { in ___ieee80211_start_rx_ba_session()
346 if (sta->ampdu_mlme.tid_rx_token[tid] == dialog_token) { in ___ieee80211_start_rx_ba_session()
349 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
351 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
358 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]); in ___ieee80211_start_rx_ba_session()
359 if (tid_rx && tid_rx->timeout == timeout) in ___ieee80211_start_rx_ba_session()
367 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
369 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
377 if (ieee80211_hw_check(&local->hw, SUPPORTS_REORDERING_BUFFER)) { in ___ieee80211_start_rx_ba_session()
378 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_start_rx_ba_session()
379 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
380 "Rx A-MPDU request on %pM tid %d result %d\n", in ___ieee80211_start_rx_ba_session()
381 sta->sta.addr, tid, ret); in ___ieee80211_start_rx_ba_session()
387 /* prepare A-MPDU MLME for Rx aggregation */ in ___ieee80211_start_rx_ba_session()
392 spin_lock_init(&tid_agg_rx->reorder_lock); in ___ieee80211_start_rx_ba_session()
394 /* rx timer */ in ___ieee80211_start_rx_ba_session()
395 timer_setup(&tid_agg_rx->session_timer, in ___ieee80211_start_rx_ba_session()
398 /* rx reorder timer */ in ___ieee80211_start_rx_ba_session()
399 timer_setup(&tid_agg_rx->reorder_timer, in ___ieee80211_start_rx_ba_session()
403 tid_agg_rx->reorder_buf = in ___ieee80211_start_rx_ba_session()
405 tid_agg_rx->reorder_time = in ___ieee80211_start_rx_ba_session()
407 if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) { in ___ieee80211_start_rx_ba_session()
408 kfree(tid_agg_rx->reorder_buf); in ___ieee80211_start_rx_ba_session()
409 kfree(tid_agg_rx->reorder_time); in ___ieee80211_start_rx_ba_session()
415 __skb_queue_head_init(&tid_agg_rx->reorder_buf[i]); in ___ieee80211_start_rx_ba_session()
417 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_start_rx_ba_session()
418 ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n", in ___ieee80211_start_rx_ba_session()
419 sta->sta.addr, tid, ret); in ___ieee80211_start_rx_ba_session()
421 kfree(tid_agg_rx->reorder_buf); in ___ieee80211_start_rx_ba_session()
422 kfree(tid_agg_rx->reorder_time); in ___ieee80211_start_rx_ba_session()
428 tid_agg_rx->ssn = start_seq_num; in ___ieee80211_start_rx_ba_session()
429 tid_agg_rx->head_seq_num = start_seq_num; in ___ieee80211_start_rx_ba_session()
430 tid_agg_rx->buf_size = buf_size; in ___ieee80211_start_rx_ba_session()
431 tid_agg_rx->timeout = timeout; in ___ieee80211_start_rx_ba_session()
432 tid_agg_rx->stored_mpdu_num = 0; in ___ieee80211_start_rx_ba_session()
433 tid_agg_rx->auto_seq = auto_seq; in ___ieee80211_start_rx_ba_session()
434 tid_agg_rx->started = false; in ___ieee80211_start_rx_ba_session()
435 tid_agg_rx->reorder_buf_filtered = 0; in ___ieee80211_start_rx_ba_session()
436 tid_agg_rx->tid = tid; in ___ieee80211_start_rx_ba_session()
437 tid_agg_rx->sta = sta; in ___ieee80211_start_rx_ba_session()
441 rcu_assign_pointer(sta->ampdu_mlme.tid_rx[tid], tid_agg_rx); in ___ieee80211_start_rx_ba_session()
444 mod_timer(&tid_agg_rx->session_timer, TU_TO_EXP_TIME(timeout)); in ___ieee80211_start_rx_ba_session()
445 tid_agg_rx->last_rx = jiffies; in ___ieee80211_start_rx_ba_session()
450 __set_bit(tid, sta->ampdu_mlme.agg_session_valid); in ___ieee80211_start_rx_ba_session()
451 __clear_bit(tid, sta->ampdu_mlme.unexpected_agg); in ___ieee80211_start_rx_ba_session()
452 sta->ampdu_mlme.tid_rx_token[tid] = dialog_token; in ___ieee80211_start_rx_ba_session()
456 ieee80211_send_addba_resp(sta, sta->sta.addr, tid, in ___ieee80211_start_rx_ba_session()
468 mutex_lock(&sta->ampdu_mlme.mtx); in __ieee80211_start_rx_ba_session()
472 mutex_unlock(&sta->ampdu_mlme.mtx); in __ieee80211_start_rx_ba_session()
475 void ieee80211_process_addba_request(struct ieee80211_local *local, in ieee80211_process_addba_request() argument
486 dialog_token = mgmt->u.action.u.addba_req.dialog_token; in ieee80211_process_addba_request()
487 timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); in ieee80211_process_addba_request()
489 le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; in ieee80211_process_addba_request()
491 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); in ieee80211_process_addba_request()
496 ies_len = len - offsetof(struct ieee80211_mgmt, in ieee80211_process_addba_request()
499 ieee802_11_parse_elems(mgmt->u.action.u.addba_req.variable, in ieee80211_process_addba_request()
500 ies_len, true, &elems, mgmt->bssid, NULL); in ieee80211_process_addba_request()
515 struct ieee80211_local *local = sdata->local; in ieee80211_manage_rx_ba_offl() local
523 set_bit(tid, sta->ampdu_mlme.tid_rx_manage_offl); in ieee80211_manage_rx_ba_offl()
524 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_manage_rx_ba_offl()
534 struct ieee80211_local *local = sdata->local; in ieee80211_rx_ba_timer_expired() local
542 set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); in ieee80211_rx_ba_timer_expired()
543 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_rx_ba_timer_expired()