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) 2018-2022 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()
193 resp->data = req->data & IEEE80211_ADDBA_EXT_NO_FRAG; in ieee80211_add_addbaext()
195 resp->data |= u8_encode_bits(buf_size >> IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT, in ieee80211_add_addbaext()
204 struct ieee80211_sub_if_data *sdata = sta->sdata; in ieee80211_send_addba_resp()
205 struct ieee80211_local *local = sdata->local; in ieee80211_send_addba_resp() local
208 bool amsdu = ieee80211_hw_check(&local->hw, SUPPORTS_AMSDU_IN_AMPDU); in ieee80211_send_addba_resp()
213 local->hw.extra_tx_headroom); in ieee80211_send_addba_resp()
217 skb_reserve(skb, local->hw.extra_tx_headroom); in ieee80211_send_addba_resp()
219 memcpy(mgmt->da, da, ETH_ALEN); in ieee80211_send_addba_resp()
220 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_resp()
221 if (sdata->vif.type == NL80211_IFTYPE_AP || in ieee80211_send_addba_resp()
222 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || in ieee80211_send_addba_resp()
223 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) in ieee80211_send_addba_resp()
224 memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); in ieee80211_send_addba_resp()
225 else if (sdata->vif.type == NL80211_IFTYPE_STATION) in ieee80211_send_addba_resp()
226 memcpy(mgmt->bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); in ieee80211_send_addba_resp()
227 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) in ieee80211_send_addba_resp()
228 memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN); in ieee80211_send_addba_resp()
230 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | in ieee80211_send_addba_resp()
233 skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); in ieee80211_send_addba_resp()
234 mgmt->u.action.category = WLAN_CATEGORY_BACK; in ieee80211_send_addba_resp()
235 mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; in ieee80211_send_addba_resp()
236 mgmt->u.action.u.addba_resp.dialog_token = dialog_token; in ieee80211_send_addba_resp()
243 mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); in ieee80211_send_addba_resp()
244 mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); in ieee80211_send_addba_resp()
245 mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); in ieee80211_send_addba_resp()
247 if (sta->sta.deflink.he_cap.has_he && addbaext) in ieee80211_send_addba_resp()
259 struct ieee80211_local *local = sta->sdata->local; in ___ieee80211_start_rx_ba_session() local
262 .sta = &sta->sta, in ___ieee80211_start_rx_ba_session()
269 int i, ret = -EOPNOTSUPP; in ___ieee80211_start_rx_ba_session()
274 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
276 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
280 if (!sta->sta.deflink.ht_cap.ht_supported && in ___ieee80211_start_rx_ba_session()
281 !sta->sta.deflink.he_cap.has_he) { in ___ieee80211_start_rx_ba_session()
282 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
284 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
290 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
291 "Suspend in progress - Denying ADDBA request (%pM tid %d)\n", in ___ieee80211_start_rx_ba_session()
292 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
296 if (sta->sta.deflink.eht_cap.has_eht) in ___ieee80211_start_rx_ba_session()
298 else if (sta->sta.deflink.he_cap.has_he) in ___ieee80211_start_rx_ba_session()
308 (!(sta->sta.deflink.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || in ___ieee80211_start_rx_ba_session()
311 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
313 sta->sta.addr, tid, ba_policy, buf_size); in ___ieee80211_start_rx_ba_session()
321 if (buf_size > sta->sta.max_rx_aggregation_subframes) in ___ieee80211_start_rx_ba_session()
322 buf_size = sta->sta.max_rx_aggregation_subframes; in ___ieee80211_start_rx_ba_session()
325 ht_dbg(sta->sdata, "AddBA Req buf_size=%d for %pM\n", in ___ieee80211_start_rx_ba_session()
326 buf_size, sta->sta.addr); in ___ieee80211_start_rx_ba_session()
329 lockdep_assert_held(&sta->ampdu_mlme.mtx); in ___ieee80211_start_rx_ba_session()
331 if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) { in ___ieee80211_start_rx_ba_session()
332 if (sta->ampdu_mlme.tid_rx_token[tid] == dialog_token) { in ___ieee80211_start_rx_ba_session()
335 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
337 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
344 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]); in ___ieee80211_start_rx_ba_session()
345 if (tid_rx && tid_rx->timeout == timeout) in ___ieee80211_start_rx_ba_session()
353 ht_dbg_ratelimited(sta->sdata, in ___ieee80211_start_rx_ba_session()
355 sta->sta.addr, tid); in ___ieee80211_start_rx_ba_session()
363 if (ieee80211_hw_check(&local->hw, SUPPORTS_REORDERING_BUFFER)) { in ___ieee80211_start_rx_ba_session()
364 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_start_rx_ba_session()
365 ht_dbg(sta->sdata, in ___ieee80211_start_rx_ba_session()
366 "Rx A-MPDU request on %pM tid %d result %d\n", in ___ieee80211_start_rx_ba_session()
367 sta->sta.addr, tid, ret); in ___ieee80211_start_rx_ba_session()
373 /* prepare A-MPDU MLME for Rx aggregation */ in ___ieee80211_start_rx_ba_session()
378 spin_lock_init(&tid_agg_rx->reorder_lock); in ___ieee80211_start_rx_ba_session()
380 /* rx timer */ in ___ieee80211_start_rx_ba_session()
381 timer_setup(&tid_agg_rx->session_timer, in ___ieee80211_start_rx_ba_session()
384 /* rx reorder timer */ in ___ieee80211_start_rx_ba_session()
385 timer_setup(&tid_agg_rx->reorder_timer, in ___ieee80211_start_rx_ba_session()
389 tid_agg_rx->reorder_buf = in ___ieee80211_start_rx_ba_session()
391 tid_agg_rx->reorder_time = in ___ieee80211_start_rx_ba_session()
393 if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) { in ___ieee80211_start_rx_ba_session()
394 kfree(tid_agg_rx->reorder_buf); in ___ieee80211_start_rx_ba_session()
395 kfree(tid_agg_rx->reorder_time); in ___ieee80211_start_rx_ba_session()
401 __skb_queue_head_init(&tid_agg_rx->reorder_buf[i]); in ___ieee80211_start_rx_ba_session()
403 ret = drv_ampdu_action(local, sta->sdata, ¶ms); in ___ieee80211_start_rx_ba_session()
404 ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n", in ___ieee80211_start_rx_ba_session()
405 sta->sta.addr, tid, ret); in ___ieee80211_start_rx_ba_session()
407 kfree(tid_agg_rx->reorder_buf); in ___ieee80211_start_rx_ba_session()
408 kfree(tid_agg_rx->reorder_time); in ___ieee80211_start_rx_ba_session()
414 tid_agg_rx->ssn = start_seq_num; in ___ieee80211_start_rx_ba_session()
415 tid_agg_rx->head_seq_num = start_seq_num; in ___ieee80211_start_rx_ba_session()
416 tid_agg_rx->buf_size = buf_size; in ___ieee80211_start_rx_ba_session()
417 tid_agg_rx->timeout = timeout; in ___ieee80211_start_rx_ba_session()
418 tid_agg_rx->stored_mpdu_num = 0; in ___ieee80211_start_rx_ba_session()
419 tid_agg_rx->auto_seq = auto_seq; in ___ieee80211_start_rx_ba_session()
420 tid_agg_rx->started = false; in ___ieee80211_start_rx_ba_session()
421 tid_agg_rx->reorder_buf_filtered = 0; in ___ieee80211_start_rx_ba_session()
422 tid_agg_rx->tid = tid; in ___ieee80211_start_rx_ba_session()
423 tid_agg_rx->sta = sta; in ___ieee80211_start_rx_ba_session()
427 rcu_assign_pointer(sta->ampdu_mlme.tid_rx[tid], tid_agg_rx); in ___ieee80211_start_rx_ba_session()
430 mod_timer(&tid_agg_rx->session_timer, TU_TO_EXP_TIME(timeout)); in ___ieee80211_start_rx_ba_session()
431 tid_agg_rx->last_rx = jiffies; in ___ieee80211_start_rx_ba_session()
436 __set_bit(tid, sta->ampdu_mlme.agg_session_valid); in ___ieee80211_start_rx_ba_session()
437 __clear_bit(tid, sta->ampdu_mlme.unexpected_agg); in ___ieee80211_start_rx_ba_session()
438 sta->ampdu_mlme.tid_rx_token[tid] = dialog_token; in ___ieee80211_start_rx_ba_session()
442 ieee80211_send_addba_resp(sta, sta->sta.addr, tid, in ___ieee80211_start_rx_ba_session()
454 mutex_lock(&sta->ampdu_mlme.mtx); in __ieee80211_start_rx_ba_session()
458 mutex_unlock(&sta->ampdu_mlme.mtx); in __ieee80211_start_rx_ba_session()
461 void ieee80211_process_addba_request(struct ieee80211_local *local, in ieee80211_process_addba_request() argument
472 dialog_token = mgmt->u.action.u.addba_req.dialog_token; in ieee80211_process_addba_request()
473 timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); in ieee80211_process_addba_request()
475 le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; in ieee80211_process_addba_request()
477 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); in ieee80211_process_addba_request()
482 ies_len = len - offsetof(struct ieee80211_mgmt, in ieee80211_process_addba_request()
485 elems = ieee802_11_parse_elems(mgmt->u.action.u.addba_req.variable, in ieee80211_process_addba_request()
487 if (!elems || elems->parse_error) in ieee80211_process_addba_request()
491 if (sta->sta.deflink.eht_cap.has_eht && elems && elems->addba_ext_ie) { in ieee80211_process_addba_request()
492 u8 buf_size_1k = u8_get_bits(elems->addba_ext_ie->data, in ieee80211_process_addba_request()
501 elems ? elems->addba_ext_ie : NULL); in ieee80211_process_addba_request()
510 struct ieee80211_local *local = sdata->local; in ieee80211_manage_rx_ba_offl() local
518 set_bit(tid, sta->ampdu_mlme.tid_rx_manage_offl); in ieee80211_manage_rx_ba_offl()
519 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_manage_rx_ba_offl()
529 struct ieee80211_local *local = sdata->local; in ieee80211_rx_ba_timer_expired() local
537 set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); in ieee80211_rx_ba_timer_expired()
538 ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); in ieee80211_rx_ba_timer_expired()