Commit | Line | Data |
---|---|---|
b8695a8f JB |
1 | /* |
2 | * HT handling | |
3 | * | |
4 | * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
5 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
6 | * Copyright 2005-2006, Devicescape Software, Inc. | |
7 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
8 | * Copyright 2007, Michael Wu <flamingice@sourmilk.net> | |
a93e3644 | 9 | * Copyright 2007-2010, Intel Corporation |
b8695a8f JB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
73a72a81 JB |
16 | /** |
17 | * DOC: RX A-MPDU aggregation | |
18 | * | |
19 | * Aggregation on the RX side requires only implementing the | |
20 | * @ampdu_action callback that is invoked to start/stop any | |
21 | * block-ack sessions for RX aggregation. | |
22 | * | |
23 | * When RX aggregation is started by the peer, the driver is | |
24 | * notified via @ampdu_action function, with the | |
25 | * %IEEE80211_AMPDU_RX_START action, and may reject the request | |
26 | * in which case a negative response is sent to the peer, if it | |
27 | * accepts it a positive response is sent. | |
28 | * | |
29 | * While the session is active, the device/driver are required | |
30 | * to de-aggregate frames and pass them up one by one to mac80211, | |
31 | * which will handle the reorder buffer. | |
32 | * | |
33 | * When the aggregation session is stopped again by the peer or | |
34 | * ourselves, the driver's @ampdu_action function will be called | |
35 | * with the action %IEEE80211_AMPDU_RX_STOP. In this case, the | |
36 | * call must not fail. | |
37 | */ | |
38 | ||
b8695a8f | 39 | #include <linux/ieee80211.h> |
5a0e3ad6 | 40 | #include <linux/slab.h> |
bc3b2d7f | 41 | #include <linux/export.h> |
b8695a8f JB |
42 | #include <net/mac80211.h> |
43 | #include "ieee80211_i.h" | |
24487981 | 44 | #include "driver-ops.h" |
b8695a8f | 45 | |
a87f736d JB |
46 | static void ieee80211_free_tid_rx(struct rcu_head *h) |
47 | { | |
48 | struct tid_ampdu_rx *tid_rx = | |
49 | container_of(h, struct tid_ampdu_rx, rcu_head); | |
50 | int i; | |
51 | ||
d72308bf SG |
52 | del_timer_sync(&tid_rx->reorder_timer); |
53 | ||
a87f736d | 54 | for (i = 0; i < tid_rx->buf_size; i++) |
83eb935e | 55 | __skb_queue_purge(&tid_rx->reorder_buf[i]); |
a87f736d JB |
56 | kfree(tid_rx->reorder_buf); |
57 | kfree(tid_rx->reorder_time); | |
58 | kfree(tid_rx); | |
59 | } | |
60 | ||
7c3b1dd8 | 61 | void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
53f73c09 | 62 | u16 initiator, u16 reason, bool tx) |
b8695a8f | 63 | { |
d75636ef | 64 | struct ieee80211_local *local = sta->local; |
098a6070 | 65 | struct tid_ampdu_rx *tid_rx; |
b8695a8f | 66 | |
a93e3644 | 67 | lockdep_assert_held(&sta->ampdu_mlme.mtx); |
098a6070 | 68 | |
40b275b6 JB |
69 | tid_rx = rcu_dereference_protected(sta->ampdu_mlme.tid_rx[tid], |
70 | lockdep_is_held(&sta->ampdu_mlme.mtx)); | |
a87f736d | 71 | |
7c3b1dd8 | 72 | if (!tid_rx) |
b8695a8f | 73 | return; |
d75636ef | 74 | |
a9b3cd7f | 75 | RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL); |
b8695a8f | 76 | |
bdcbd8e0 JB |
77 | ht_dbg(sta->sdata, |
78 | "Rx BA session stop requested for %pM tid %u %s reason: %d\n", | |
79 | sta->sta.addr, tid, | |
80 | initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator", | |
81 | (int)reason); | |
b8695a8f | 82 | |
12375ef9 | 83 | if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP, |
0b01f030 | 84 | &sta->sta, tid, NULL, 0)) |
bdcbd8e0 | 85 | sdata_info(sta->sdata, |
0a214d3f JB |
86 | "HW problem - can not stop rx aggregation for %pM tid %d\n", |
87 | sta->sta.addr, tid); | |
b8695a8f | 88 | |
b8695a8f | 89 | /* check if this is a self generated aggregation halt */ |
53f73c09 | 90 | if (initiator == WLAN_BACK_RECIPIENT && tx) |
d75636ef | 91 | ieee80211_send_delba(sta->sdata, sta->sta.addr, |
a7f39f60 | 92 | tid, WLAN_BACK_RECIPIENT, reason); |
b8695a8f | 93 | |
7c3b1dd8 | 94 | del_timer_sync(&tid_rx->session_timer); |
a87f736d JB |
95 | |
96 | call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx); | |
b8695a8f JB |
97 | } |
98 | ||
2aab4c27 | 99 | void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
53f73c09 | 100 | u16 initiator, u16 reason, bool tx) |
2aab4c27 | 101 | { |
a93e3644 | 102 | mutex_lock(&sta->ampdu_mlme.mtx); |
53f73c09 | 103 | ___ieee80211_stop_rx_ba_session(sta, tid, initiator, reason, tx); |
a93e3644 | 104 | mutex_unlock(&sta->ampdu_mlme.mtx); |
2aab4c27 JB |
105 | } |
106 | ||
f41ccd71 SL |
107 | void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, |
108 | const u8 *addr) | |
109 | { | |
110 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
0a557ed3 | 111 | struct sta_info *sta; |
f41ccd71 SL |
112 | int i; |
113 | ||
0a557ed3 | 114 | rcu_read_lock(); |
bc192f89 | 115 | sta = sta_info_get_bss(sdata, addr); |
0a557ed3 EP |
116 | if (!sta) { |
117 | rcu_read_unlock(); | |
118 | return; | |
119 | } | |
120 | ||
5a306f58 | 121 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) |
f41ccd71 SL |
122 | if (ba_rx_bitmap & BIT(i)) |
123 | set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested); | |
124 | ||
125 | ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); | |
0a557ed3 | 126 | rcu_read_unlock(); |
f41ccd71 SL |
127 | } |
128 | EXPORT_SYMBOL(ieee80211_stop_rx_ba_session); | |
129 | ||
b8695a8f JB |
130 | /* |
131 | * After accepting the AddBA Request we activated a timer, | |
132 | * resetting it after each frame that arrives from the originator. | |
b8695a8f JB |
133 | */ |
134 | static void sta_rx_agg_session_timer_expired(unsigned long data) | |
135 | { | |
136 | /* not an elegant detour, but there is no choice as the timer passes | |
137 | * only one argument, and various sta_info are needed here, so init | |
138 | * flow in sta_info_create gives the TID as data, while the timer_to_id | |
139 | * array gives the sta through container_of */ | |
140 | u8 *ptid = (u8 *)data; | |
141 | u8 *timer_to_id = ptid - *ptid; | |
142 | struct sta_info *sta = container_of(timer_to_id, struct sta_info, | |
143 | timer_to_tid[0]); | |
12d3952f FF |
144 | struct tid_ampdu_rx *tid_rx; |
145 | unsigned long timeout; | |
146 | ||
d8c7aae6 | 147 | rcu_read_lock(); |
12d3952f | 148 | tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[*ptid]); |
d8c7aae6 FF |
149 | if (!tid_rx) { |
150 | rcu_read_unlock(); | |
12d3952f | 151 | return; |
d8c7aae6 | 152 | } |
12d3952f FF |
153 | |
154 | timeout = tid_rx->last_rx + TU_TO_JIFFIES(tid_rx->timeout); | |
155 | if (time_is_after_jiffies(timeout)) { | |
156 | mod_timer(&tid_rx->session_timer, timeout); | |
d8c7aae6 | 157 | rcu_read_unlock(); |
12d3952f FF |
158 | return; |
159 | } | |
d8c7aae6 | 160 | rcu_read_unlock(); |
b8695a8f | 161 | |
0a214d3f JB |
162 | ht_dbg(sta->sdata, "RX session timer expired on %pM tid %d\n", |
163 | sta->sta.addr, (u16)*ptid); | |
d63e9ae3 | 164 | |
7c3b1dd8 JB |
165 | set_bit(*ptid, sta->ampdu_mlme.tid_rx_timer_expired); |
166 | ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); | |
b8695a8f JB |
167 | } |
168 | ||
2bff8ebf CL |
169 | static void sta_rx_agg_reorder_timer_expired(unsigned long data) |
170 | { | |
171 | u8 *ptid = (u8 *)data; | |
172 | u8 *timer_to_id = ptid - *ptid; | |
173 | struct sta_info *sta = container_of(timer_to_id, struct sta_info, | |
174 | timer_to_tid[0]); | |
175 | ||
176 | rcu_read_lock(); | |
2bff8ebf | 177 | ieee80211_release_reorder_timeout(sta, *ptid); |
2bff8ebf CL |
178 | rcu_read_unlock(); |
179 | } | |
180 | ||
b8695a8f JB |
181 | static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid, |
182 | u8 dialog_token, u16 status, u16 policy, | |
183 | u16 buf_size, u16 timeout) | |
184 | { | |
b8695a8f JB |
185 | struct ieee80211_local *local = sdata->local; |
186 | struct sk_buff *skb; | |
187 | struct ieee80211_mgmt *mgmt; | |
188 | u16 capab; | |
189 | ||
190 | skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom); | |
d15b8459 | 191 | if (!skb) |
b8695a8f | 192 | return; |
b8695a8f JB |
193 | |
194 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
195 | mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); | |
196 | memset(mgmt, 0, 24); | |
197 | memcpy(mgmt->da, da, ETH_ALEN); | |
47846c9b | 198 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
8abd3f9b | 199 | if (sdata->vif.type == NL80211_IFTYPE_AP || |
ae2772b3 TP |
200 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN || |
201 | sdata->vif.type == NL80211_IFTYPE_MESH_POINT) | |
47846c9b | 202 | memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); |
46900298 JB |
203 | else if (sdata->vif.type == NL80211_IFTYPE_STATION) |
204 | memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); | |
13c40c54 AS |
205 | else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) |
206 | memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN); | |
46900298 | 207 | |
b8695a8f JB |
208 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
209 | IEEE80211_STYPE_ACTION); | |
210 | ||
211 | skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); | |
212 | mgmt->u.action.category = WLAN_CATEGORY_BACK; | |
213 | mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; | |
214 | mgmt->u.action.u.addba_resp.dialog_token = dialog_token; | |
215 | ||
216 | capab = (u16)(policy << 1); /* bit 1 aggregation policy */ | |
217 | capab |= (u16)(tid << 2); /* bit 5:2 TID number */ | |
218 | capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ | |
219 | ||
220 | mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); | |
221 | mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); | |
222 | mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); | |
223 | ||
62ae67be | 224 | ieee80211_tx_skb(sdata, skb); |
b8695a8f JB |
225 | } |
226 | ||
08cf42e8 MK |
227 | void __ieee80211_start_rx_ba_session(struct sta_info *sta, |
228 | u8 dialog_token, u16 timeout, | |
229 | u16 start_seq_num, u16 ba_policy, u16 tid, | |
4549cf2b | 230 | u16 buf_size, bool tx, bool auto_seq) |
b8695a8f | 231 | { |
08cf42e8 | 232 | struct ieee80211_local *local = sta->sdata->local; |
b8695a8f | 233 | struct tid_ampdu_rx *tid_agg_rx; |
83eb935e | 234 | int i, ret = -EOPNOTSUPP; |
08cf42e8 | 235 | u16 status = WLAN_STATUS_REQUEST_DECLINED; |
b8695a8f | 236 | |
c2c98fde | 237 | if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { |
0a214d3f JB |
238 | ht_dbg(sta->sdata, |
239 | "Suspend in progress - Denying ADDBA request (%pM tid %d)\n", | |
240 | sta->sta.addr, tid); | |
722f069a S |
241 | goto end_no_lock; |
242 | } | |
243 | ||
b8695a8f JB |
244 | /* sanity check for incoming parameters: |
245 | * check if configuration can support the BA policy | |
246 | * and if buffer size does not exceeds max value */ | |
247 | /* XXX: check own ht delayed BA capability?? */ | |
f64f9e71 JP |
248 | if (((ba_policy != 1) && |
249 | (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || | |
250 | (buf_size > IEEE80211_MAX_AMPDU_BUF)) { | |
b8695a8f | 251 | status = WLAN_STATUS_INVALID_QOS_PARAM; |
bdcbd8e0 JB |
252 | ht_dbg_ratelimited(sta->sdata, |
253 | "AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n", | |
08cf42e8 | 254 | sta->sta.addr, tid, ba_policy, buf_size); |
b8695a8f JB |
255 | goto end_no_lock; |
256 | } | |
257 | /* determine default buffer size */ | |
82694f76 LC |
258 | if (buf_size == 0) |
259 | buf_size = IEEE80211_MAX_AMPDU_BUF; | |
b8695a8f | 260 | |
df6ba5d8 LC |
261 | /* make sure the size doesn't exceed the maximum supported by the hw */ |
262 | if (buf_size > local->hw.max_rx_aggregation_subframes) | |
263 | buf_size = local->hw.max_rx_aggregation_subframes; | |
b8695a8f JB |
264 | |
265 | /* examine state machine */ | |
a93e3644 | 266 | mutex_lock(&sta->ampdu_mlme.mtx); |
b8695a8f | 267 | |
a87f736d | 268 | if (sta->ampdu_mlme.tid_rx[tid]) { |
bdcbd8e0 JB |
269 | ht_dbg_ratelimited(sta->sdata, |
270 | "unexpected AddBA Req from %pM on tid %u\n", | |
08cf42e8 | 271 | sta->sta.addr, tid); |
15b4d843 AN |
272 | |
273 | /* delete existing Rx BA session on the same tid */ | |
274 | ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, | |
275 | WLAN_STATUS_UNSPECIFIED_QOS, | |
276 | false); | |
b8695a8f JB |
277 | } |
278 | ||
279 | /* prepare A-MPDU MLME for Rx aggregation */ | |
dd318575 | 280 | tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL); |
d15b8459 | 281 | if (!tid_agg_rx) |
b8695a8f | 282 | goto end; |
b8695a8f | 283 | |
2bff8ebf CL |
284 | spin_lock_init(&tid_agg_rx->reorder_lock); |
285 | ||
a87f736d JB |
286 | /* rx timer */ |
287 | tid_agg_rx->session_timer.function = sta_rx_agg_session_timer_expired; | |
288 | tid_agg_rx->session_timer.data = (unsigned long)&sta->timer_to_tid[tid]; | |
12d3952f | 289 | init_timer_deferrable(&tid_agg_rx->session_timer); |
b8695a8f | 290 | |
2bff8ebf CL |
291 | /* rx reorder timer */ |
292 | tid_agg_rx->reorder_timer.function = sta_rx_agg_reorder_timer_expired; | |
293 | tid_agg_rx->reorder_timer.data = (unsigned long)&sta->timer_to_tid[tid]; | |
294 | init_timer(&tid_agg_rx->reorder_timer); | |
295 | ||
b8695a8f JB |
296 | /* prepare reordering buffer */ |
297 | tid_agg_rx->reorder_buf = | |
83eb935e | 298 | kcalloc(buf_size, sizeof(struct sk_buff_head), GFP_KERNEL); |
4d050f1d | 299 | tid_agg_rx->reorder_time = |
dd318575 | 300 | kcalloc(buf_size, sizeof(unsigned long), GFP_KERNEL); |
4d050f1d | 301 | if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) { |
4d050f1d JM |
302 | kfree(tid_agg_rx->reorder_buf); |
303 | kfree(tid_agg_rx->reorder_time); | |
a87f736d | 304 | kfree(tid_agg_rx); |
b8695a8f JB |
305 | goto end; |
306 | } | |
307 | ||
83eb935e MK |
308 | for (i = 0; i < buf_size; i++) |
309 | __skb_queue_head_init(&tid_agg_rx->reorder_buf[i]); | |
310 | ||
12375ef9 | 311 | ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START, |
0b01f030 | 312 | &sta->sta, tid, &start_seq_num, 0); |
0a214d3f JB |
313 | ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n", |
314 | sta->sta.addr, tid, ret); | |
b8695a8f JB |
315 | if (ret) { |
316 | kfree(tid_agg_rx->reorder_buf); | |
a87f736d | 317 | kfree(tid_agg_rx->reorder_time); |
b8695a8f | 318 | kfree(tid_agg_rx); |
b8695a8f JB |
319 | goto end; |
320 | } | |
321 | ||
a87f736d | 322 | /* update data */ |
b8695a8f JB |
323 | tid_agg_rx->dialog_token = dialog_token; |
324 | tid_agg_rx->ssn = start_seq_num; | |
325 | tid_agg_rx->head_seq_num = start_seq_num; | |
326 | tid_agg_rx->buf_size = buf_size; | |
327 | tid_agg_rx->timeout = timeout; | |
328 | tid_agg_rx->stored_mpdu_num = 0; | |
4549cf2b | 329 | tid_agg_rx->auto_seq = auto_seq; |
b8695a8f | 330 | status = WLAN_STATUS_SUCCESS; |
a87f736d JB |
331 | |
332 | /* activate it for RX */ | |
cf778b00 | 333 | rcu_assign_pointer(sta->ampdu_mlme.tid_rx[tid], tid_agg_rx); |
f955ebb4 | 334 | |
12d3952f | 335 | if (timeout) { |
f955ebb4 | 336 | mod_timer(&tid_agg_rx->session_timer, TU_TO_EXP_TIME(timeout)); |
12d3952f FF |
337 | tid_agg_rx->last_rx = jiffies; |
338 | } | |
f955ebb4 | 339 | |
b8695a8f | 340 | end: |
a93e3644 | 341 | mutex_unlock(&sta->ampdu_mlme.mtx); |
b8695a8f JB |
342 | |
343 | end_no_lock: | |
08cf42e8 MK |
344 | if (tx) |
345 | ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, tid, | |
346 | dialog_token, status, 1, buf_size, | |
347 | timeout); | |
348 | } | |
349 | ||
350 | void ieee80211_process_addba_request(struct ieee80211_local *local, | |
351 | struct sta_info *sta, | |
352 | struct ieee80211_mgmt *mgmt, | |
353 | size_t len) | |
354 | { | |
355 | u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num; | |
356 | u8 dialog_token; | |
357 | ||
358 | /* extract session parameters from addba request frame */ | |
359 | dialog_token = mgmt->u.action.u.addba_req.dialog_token; | |
360 | timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); | |
361 | start_seq_num = | |
362 | le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; | |
363 | ||
364 | capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); | |
365 | ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; | |
366 | tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; | |
367 | buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; | |
368 | ||
369 | __ieee80211_start_rx_ba_session(sta, dialog_token, timeout, | |
370 | start_seq_num, ba_policy, tid, | |
4549cf2b | 371 | buf_size, true, false); |
08cf42e8 MK |
372 | } |
373 | ||
374 | void ieee80211_start_rx_ba_session_offl(struct ieee80211_vif *vif, | |
375 | const u8 *addr, u16 tid) | |
376 | { | |
377 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
378 | struct ieee80211_local *local = sdata->local; | |
379 | struct ieee80211_rx_agg *rx_agg; | |
380 | struct sk_buff *skb = dev_alloc_skb(0); | |
381 | ||
382 | if (unlikely(!skb)) | |
383 | return; | |
384 | ||
385 | rx_agg = (struct ieee80211_rx_agg *) &skb->cb; | |
386 | memcpy(&rx_agg->addr, addr, ETH_ALEN); | |
387 | rx_agg->tid = tid; | |
388 | ||
389 | skb->pkt_type = IEEE80211_SDATA_QUEUE_RX_AGG_START; | |
390 | skb_queue_tail(&sdata->skb_queue, skb); | |
391 | ieee80211_queue_work(&local->hw, &sdata->work); | |
392 | } | |
393 | EXPORT_SYMBOL(ieee80211_start_rx_ba_session_offl); | |
394 | ||
395 | void ieee80211_stop_rx_ba_session_offl(struct ieee80211_vif *vif, | |
396 | const u8 *addr, u16 tid) | |
397 | { | |
398 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
399 | struct ieee80211_local *local = sdata->local; | |
400 | struct ieee80211_rx_agg *rx_agg; | |
401 | struct sk_buff *skb = dev_alloc_skb(0); | |
402 | ||
403 | if (unlikely(!skb)) | |
404 | return; | |
405 | ||
406 | rx_agg = (struct ieee80211_rx_agg *) &skb->cb; | |
407 | memcpy(&rx_agg->addr, addr, ETH_ALEN); | |
408 | rx_agg->tid = tid; | |
409 | ||
410 | skb->pkt_type = IEEE80211_SDATA_QUEUE_RX_AGG_STOP; | |
411 | skb_queue_tail(&sdata->skb_queue, skb); | |
412 | ieee80211_queue_work(&local->hw, &sdata->work); | |
b8695a8f | 413 | } |
08cf42e8 | 414 | EXPORT_SYMBOL(ieee80211_stop_rx_ba_session_offl); |