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Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux...
[linux-block.git] / net / mac80211 / util.c
CommitLineData
d2912cb1 1// SPDX-License-Identifier: GPL-2.0-only
c2d1560a
JB		 2/*
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005-2006, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
d98ad83e 7 * Copyright 2013-2014 Intel Mobile Communications GmbH
da6a4352 8 * Copyright (C) 2015-2017 Intel Deutschland GmbH
20d5a0b9 9 * Copyright (C) 2018-2025 Intel Corporation
c2d1560a 10 *
c2d1560a
JB		 11 * utilities for mac80211
12 */
13
14#include <net/mac80211.h>
15#include <linux/netdevice.h>
bc3b2d7f 16#include <linux/export.h>
c2d1560a
JB		 17#include <linux/types.h>
18#include <linux/slab.h>
19#include <linux/skbuff.h>
20#include <linux/etherdevice.h>
21#include <linux/if_arp.h>
c2d1560a 22#include <linux/bitmap.h>
dd76986b 23#include <linux/crc32.h>
881d966b 24#include <net/net_namespace.h>
c2d1560a 25#include <net/cfg80211.h>
dabeb344 26#include <net/rtnetlink.h>
ffbd0c8c 27#include <kunit/visibility.h>
c2d1560a
JB		 28
29#include "ieee80211_i.h"
24487981 30#include "driver-ops.h"
2c8dccc7 31#include "rate.h"
ee385855 32#include "mesh.h"
c2d1560a 33#include "wme.h"
f2753ddb 34#include "led.h"
fffd0934 35#include "wep.h"
c2d1560a
JB		 36
37/* privid for wiphys to determine whether they belong to us or not */
8a47cea7 38const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid;
c2d1560a 39
9a95371a
LR		 40struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
41{
42 struct ieee80211_local *local;
9a95371a
LR		 43
44 local = wiphy_priv(wiphy);
45 return &local->hw;
46}
47EXPORT_SYMBOL(wiphy_to_ieee80211_hw);
c2d1560a 48
310c8387
JB		 49const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited = {
50 .mode = IEEE80211_CONN_MODE_EHT,
51 .bw_limit = IEEE80211_CONN_BW_LIMIT_320,
52};
53
09a740ce
TP		 54u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
55 enum nl80211_iftype type)
56{
57 __le16 fc = hdr->frame_control;
58
59 if (ieee80211_is_data(fc)) {
60 if (len < 24) /* drop incorrect hdr len (data) */
61 return NULL;
62
63 if (ieee80211_has_a4(fc))
64 return NULL;
65 if (ieee80211_has_tods(fc))
66 return hdr->addr1;
67 if (ieee80211_has_fromds(fc))
68 return hdr->addr2;
69
70 return hdr->addr3;
71 }
72
73 if (ieee80211_is_s1g_beacon(fc)) {
74 struct ieee80211_ext *ext = (void *) hdr;
75
76 return ext->u.s1g_beacon.sa;
77 }
78
79 if (ieee80211_is_mgmt(fc)) {
80 if (len < 24) /* drop incorrect hdr len (mgmt) */
81 return NULL;
82 return hdr->addr3;
83 }
84
85 if (ieee80211_is_ctl(fc)) {
86 if (ieee80211_is_pspoll(fc))
87 return hdr->addr1;
88
89 if (ieee80211_is_back_req(fc)) {
90 switch (type) {
91 case NL80211_IFTYPE_STATION:
92 return hdr->addr2;
93 case NL80211_IFTYPE_AP:
94 case NL80211_IFTYPE_AP_VLAN:
95 return hdr->addr1;
96 default:
97 break; /* fall through to the return */
98 }
99 }
100 }
101
102 return NULL;
103}
104EXPORT_SYMBOL(ieee80211_get_bssid);
105
5cf121c3 106void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
c2d1560a 107{
252b86c4 108 struct sk_buff *skb;
2de8e0d9
JB		 109 struct ieee80211_hdr *hdr;
110
252b86c4 111 skb_queue_walk(&tx->skbs, skb) {
2de8e0d9
JB		 112 hdr = (struct ieee80211_hdr *) skb->data;
113 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
252b86c4 114 }
c2d1560a
JB		 115}
116
57fbcce3 117int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2400dfe2 118 int rate, int erp, int short_preamble)
c2d1560a
JB		 119{
120 int dur;
121
122 /* calculate duration (in microseconds, rounded up to next higher
123 * integer if it includes a fractional microsecond) to send frame of
124 * len bytes (does not include FCS) at the given rate. Duration will
125 * also include SIFS.
126 *
127 * rate is in 100 kbps, so divident is multiplied by 10 in the
128 * DIV_ROUND_UP() operations.
129 */
130
57fbcce3 131 if (band == NL80211_BAND_5GHZ || erp) {
c2d1560a
JB		 132 /*
133 * OFDM:
134 *
135 * N_DBPS = DATARATE x 4
136 * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
137 * (16 = SIGNAL time, 6 = tail bits)
138 * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
139 *
140 * T_SYM = 4 usec
438b61b7 141 * 802.11a - 18.5.2: aSIFSTime = 16 usec
c2d1560a
JB		 142 * 802.11g - 19.8.4: aSIFSTime = 10 usec +
143 * signal ext = 6 usec
144 */
c2d1560a 145 dur = 16; /* SIFS + signal ext */
438b61b7
SW		 146 dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */
147 dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */
438b61b7 148
2103dec1
SW		 149 /* rates should already consider the channel bandwidth,
150 * don't apply divisor again.
151 */
152 dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
153 4 * rate); /* T_SYM x N_SYM */
c2d1560a
JB		 154 } else {
155 /*
156 * 802.11b or 802.11g with 802.11b compatibility:
157 * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
158 * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
159 *
160 * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
161 * aSIFSTime = 10 usec
162 * aPreambleLength = 144 usec or 72 usec with short preamble
163 * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
164 */
165 dur = 10; /* aSIFSTime = 10 usec */
166 dur += short_preamble ? (72 + 24) : (144 + 48);
167
168 dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
169 }
170
171 return dur;
172}
173
174/* Exported duration function for driver use */
32bfd35d
JB		 175__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
176 struct ieee80211_vif *vif,
57fbcce3 177 enum nl80211_band band,
8318d78a
JB		 178 size_t frame_len,
179 struct ieee80211_rate *rate)
c2d1560a 180{
25d834e1 181 struct ieee80211_sub_if_data *sdata;
c2d1560a 182 u16 dur;
2400dfe2 183 int erp;
25d834e1 184 bool short_preamble = false;
c2d1560a 185
8318d78a 186 erp = 0;
25d834e1
JB		 187 if (vif) {
188 sdata = vif_to_sdata(vif);
bda3933a 189 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 190 if (sdata->deflink.operating_11g_mode)
25d834e1
JB		 191 erp = rate->flags & IEEE80211_RATE_ERP_G;
192 }
8318d78a 193
4ee73f33 194 dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp,
2400dfe2 195 short_preamble);
c2d1560a
JB		 196
197 return cpu_to_le16(dur);
198}
199EXPORT_SYMBOL(ieee80211_generic_frame_duration);
200
32bfd35d
JB		 201__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
202 struct ieee80211_vif *vif, size_t frame_len,
e039fa4a 203 const struct ieee80211_tx_info *frame_txctl)
c2d1560a
JB		 204{
205 struct ieee80211_local *local = hw_to_local(hw);
206 struct ieee80211_rate *rate;
25d834e1 207 struct ieee80211_sub_if_data *sdata;
471b3efd 208 bool short_preamble;
2400dfe2 209 int erp, bitrate;
c2d1560a 210 u16 dur;
2e92e6f2
JB		 211 struct ieee80211_supported_band *sband;
212
4ee73f33 213 sband = local->hw.wiphy->bands[frame_txctl->band];
c2d1560a 214
25d834e1 215 short_preamble = false;
7e9ed188 216
e039fa4a 217 rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
8318d78a
JB		 218
219 erp = 0;
25d834e1
JB		 220 if (vif) {
221 sdata = vif_to_sdata(vif);
bda3933a 222 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 223 if (sdata->deflink.operating_11g_mode)
25d834e1
JB		 224 erp = rate->flags & IEEE80211_RATE_ERP_G;
225 }
c2d1560a 226
2400dfe2 227 bitrate = rate->bitrate;
2103dec1 228
c2d1560a 229 /* CTS duration */
2103dec1 230 dur = ieee80211_frame_duration(sband->band, 10, bitrate,
2400dfe2 231 erp, short_preamble);
c2d1560a 232 /* Data frame duration */
2103dec1 233 dur += ieee80211_frame_duration(sband->band, frame_len, bitrate,
2400dfe2 234 erp, short_preamble);
c2d1560a 235 /* ACK duration */
2103dec1 236 dur += ieee80211_frame_duration(sband->band, 10, bitrate,
2400dfe2 237 erp, short_preamble);
c2d1560a
JB		 238
239 return cpu_to_le16(dur);
240}
241EXPORT_SYMBOL(ieee80211_rts_duration);
242
32bfd35d
JB		 243__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
244 struct ieee80211_vif *vif,
c2d1560a 245 size_t frame_len,
e039fa4a 246 const struct ieee80211_tx_info *frame_txctl)
c2d1560a
JB		 247{
248 struct ieee80211_local *local = hw_to_local(hw);
249 struct ieee80211_rate *rate;
25d834e1 250 struct ieee80211_sub_if_data *sdata;
471b3efd 251 bool short_preamble;
2400dfe2 252 int erp, bitrate;
c2d1560a 253 u16 dur;
2e92e6f2
JB		 254 struct ieee80211_supported_band *sband;
255
4ee73f33 256 sband = local->hw.wiphy->bands[frame_txctl->band];
c2d1560a 257
25d834e1 258 short_preamble = false;
7e9ed188 259
e039fa4a 260 rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
8318d78a 261 erp = 0;
25d834e1
JB		 262 if (vif) {
263 sdata = vif_to_sdata(vif);
bda3933a 264 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 265 if (sdata->deflink.operating_11g_mode)
25d834e1
JB		 266 erp = rate->flags & IEEE80211_RATE_ERP_G;
267 }
c2d1560a 268
2400dfe2 269 bitrate = rate->bitrate;
2103dec1 270
c2d1560a 271 /* Data frame duration */
2103dec1 272 dur = ieee80211_frame_duration(sband->band, frame_len, bitrate,
2400dfe2 273 erp, short_preamble);
e039fa4a 274 if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) {
c2d1560a 275 /* ACK duration */
2103dec1 276 dur += ieee80211_frame_duration(sband->band, 10, bitrate,
2400dfe2 277 erp, short_preamble);
c2d1560a
JB		 278 }
279
280 return cpu_to_le16(dur);
281}
282EXPORT_SYMBOL(ieee80211_ctstoself_duration);
283
c850e31f
AW		 284static void wake_tx_push_queue(struct ieee80211_local *local,
285 struct ieee80211_sub_if_data *sdata,
286 struct ieee80211_txq *queue)
287{
c850e31f
AW		 288 struct ieee80211_tx_control control = {
289 .sta = queue->sta,
290 };
291 struct sk_buff *skb;
c850e31f
AW		 292
293 while (1) {
c850e31f
AW		 294 skb = ieee80211_tx_dequeue(&local->hw, queue);
295 if (!skb)
296 break;
297
298 drv_tx(local, &control, skb);
299 }
300}
301
302/* wake_tx_queue handler for driver not implementing a custom one*/
303void ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw,
304 struct ieee80211_txq *txq)
305{
306 struct ieee80211_local *local = hw_to_local(hw);
307 struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->vif);
308 struct ieee80211_txq *queue;
309
007ae9b2
AW		 310 spin_lock(&local->handle_wake_tx_queue_lock);
311
c850e31f
AW		 312 /* Use ieee80211_next_txq() for airtime fairness accounting */
313 ieee80211_txq_schedule_start(hw, txq->ac);
314 while ((queue = ieee80211_next_txq(hw, txq->ac))) {
315 wake_tx_push_queue(local, sdata, queue);
316 ieee80211_return_txq(hw, queue, false);
317 }
318 ieee80211_txq_schedule_end(hw, txq->ac);
007ae9b2 319 spin_unlock(&local->handle_wake_tx_queue_lock);
c850e31f
AW		 320}
321EXPORT_SYMBOL(ieee80211_handle_wake_tx_queue);
322
21a5d4c3
MP		 323static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac)
324{
325 struct ieee80211_local *local = sdata->local;
326 struct ieee80211_vif *vif = &sdata->vif;
327 struct fq *fq = &local->fq;
328 struct ps_data *ps = NULL;
329 struct txq_info *txqi;
330 struct sta_info *sta;
331 int i;
332
d8dec42b
JB		 333 local_bh_disable();
334 spin_lock(&fq->lock);
21a5d4c3 335
f856373e
FF		 336 if (!test_bit(SDATA_STATE_RUNNING, &sdata->state))
337 goto out;
338
21a5d4c3
MP		 339 if (sdata->vif.type == NL80211_IFTYPE_AP)
340 ps = &sdata->bss->ps;
341
21a5d4c3
MP		 342 list_for_each_entry_rcu(sta, &local->sta_list, list) {
343 if (sdata != sta->sdata)
344 continue;
345
346 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
347 struct ieee80211_txq *txq = sta->sta.txq[i];
348
a5ae3264
ES		 349 if (!txq)
350 continue;
351
21a5d4c3
MP		 352 txqi = to_txq_info(txq);
353
354 if (ac != txq->ac)
355 continue;
356
4444bc21 357 if (!test_and_clear_bit(IEEE80211_TXQ_DIRTY,
21a5d4c3
MP		 358 &txqi->flags))
359 continue;
360
d8dec42b 361 spin_unlock(&fq->lock);
21a5d4c3 362 drv_wake_tx_queue(local, txqi);
d8dec42b 363 spin_lock(&fq->lock);
21a5d4c3
MP		 364 }
365 }
366
367 if (!vif->txq)
368 goto out;
369
370 txqi = to_txq_info(vif->txq);
371
4444bc21 372 if (!test_and_clear_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ||
21a5d4c3
MP		 373 (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac)
374 goto out;
375
d8dec42b 376 spin_unlock(&fq->lock);
21a5d4c3
MP		 377
378 drv_wake_tx_queue(local, txqi);
d8dec42b 379 local_bh_enable();
21a5d4c3
MP		 380 return;
381out:
d8dec42b
JB		 382 spin_unlock(&fq->lock);
383 local_bh_enable();
21a5d4c3
MP		 384}
385
f6c7f03f
EG		 386static void
387__releases(&local->queue_stop_reason_lock)
388__acquires(&local->queue_stop_reason_lock)
389_ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags)
21a5d4c3 390{
21a5d4c3
MP		 391 struct ieee80211_sub_if_data *sdata;
392 int n_acs = IEEE80211_NUM_ACS;
21a5d4c3
MP		 393 int i;
394
395 rcu_read_lock();
21a5d4c3
MP		 396
397 if (local->hw.queues < IEEE80211_NUM_ACS)
398 n_acs = 1;
399
400 for (i = 0; i < local->hw.queues; i++) {
401 if (local->queue_stop_reasons[i])
402 continue;
403
f6c7f03f 404 spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags);
21a5d4c3
MP		 405 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
406 int ac;
407
408 for (ac = 0; ac < n_acs; ac++) {
409 int ac_queue = sdata->vif.hw_queue[ac];
410
411 if (ac_queue == i ||
412 sdata->vif.cab_queue == i)
413 __ieee80211_wake_txqs(sdata, ac);
414 }
415 }
f6c7f03f 416 spin_lock_irqsave(&local->queue_stop_reason_lock, *flags);
21a5d4c3
MP		 417 }
418
21a5d4c3
MP		 419 rcu_read_unlock();
420}
421
da1cad73 422void ieee80211_wake_txqs(struct tasklet_struct *t)
f6c7f03f 423{
da1cad73
AP		 424 struct ieee80211_local *local = from_tasklet(local, t,
425 wake_txqs_tasklet);
f6c7f03f
EG		 426 unsigned long flags;
427
428 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
429 _ieee80211_wake_txqs(local, &flags);
430 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
431}
432
ce7c9111 433static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
cca07b00 434 enum queue_stop_reason reason,
f6c7f03f
EG		 435 bool refcounted,
436 unsigned long *flags)
c2d1560a
JB		 437{
438 struct ieee80211_local *local = hw_to_local(hw);
439
e4e72fb4
JB		 440 if (WARN_ON(queue >= hw->queues))
441 return;
ce7c9111 442
ada15125
JB		 443 if (!test_bit(reason, &local->queue_stop_reasons[queue]))
444 return;
445
856142cd 446 if (!refcounted) {
cca07b00 447 local->q_stop_reasons[queue][reason] = 0;
856142cd 448 } else {
cca07b00 449 local->q_stop_reasons[queue][reason]--;
856142cd
JB		 450 if (WARN_ON(local->q_stop_reasons[queue][reason] < 0))
451 local->q_stop_reasons[queue][reason] = 0;
452 }
cca07b00
LC		 453
454 if (local->q_stop_reasons[queue][reason] == 0)
455 __clear_bit(reason, &local->queue_stop_reasons[queue]);
96f5e66e 456
00e3daad
EG		 457 trace_wake_queue(local, queue, reason,
458 local->q_stop_reasons[queue][reason]);
459
96f5e66e
JB		 460 if (local->queue_stop_reasons[queue] != 0)
461 /* someone still has this queue stopped */
462 return;
463
107395f9 464 if (!skb_queue_empty(&local->pending[queue]))
3b8d81e0 465 tasklet_schedule(&local->tx_pending_tasklet);
21a5d4c3 466
f6c7f03f
EG		 467 /*
468 * Calling _ieee80211_wake_txqs here can be a problem because it may
469 * release queue_stop_reason_lock which has been taken by
470 * __ieee80211_wake_queue's caller. It is certainly not very nice to
471 * release someone's lock, but it is fine because all the callers of
472 * __ieee80211_wake_queue call it right before releasing the lock.
473 */
107395f9
AW		 474 if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER)
475 tasklet_schedule(&local->wake_txqs_tasklet);
476 else
477 _ieee80211_wake_txqs(local, flags);
c2d1560a 478}
ce7c9111 479
96f5e66e 480void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 481 enum queue_stop_reason reason,
482 bool refcounted)
ce7c9111
KV		 483{
484 struct ieee80211_local *local = hw_to_local(hw);
485 unsigned long flags;
486
487 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
f6c7f03f 488 __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags);
ce7c9111
KV		 489 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
490}
491
492void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
493{
494 ieee80211_wake_queue_by_reason(hw, queue,
cca07b00
LC		 495 IEEE80211_QUEUE_STOP_REASON_DRIVER,
496 false);
ce7c9111 497}
c2d1560a
JB		 498EXPORT_SYMBOL(ieee80211_wake_queue);
499
ce7c9111 500static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 501 enum queue_stop_reason reason,
502 bool refcounted)
c2d1560a
JB		 503{
504 struct ieee80211_local *local = hw_to_local(hw);
505
e4e72fb4
JB		 506 if (WARN_ON(queue >= hw->queues))
507 return;
96f5e66e 508
cca07b00
LC		 509 if (!refcounted)
510 local->q_stop_reasons[queue][reason] = 1;
511 else
512 local->q_stop_reasons[queue][reason]++;
ada15125 513
00e3daad
EG		 514 trace_stop_queue(local, queue, reason,
515 local->q_stop_reasons[queue][reason]);
516
4444bc21 517 set_bit(reason, &local->queue_stop_reasons[queue]);
c2d1560a 518}
ce7c9111 519
96f5e66e 520void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 521 enum queue_stop_reason reason,
522 bool refcounted)
ce7c9111
KV		 523{
524 struct ieee80211_local *local = hw_to_local(hw);
525 unsigned long flags;
526
527 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
cca07b00 528 __ieee80211_stop_queue(hw, queue, reason, refcounted);
ce7c9111
KV		 529 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
530}
531
532void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
533{
534 ieee80211_stop_queue_by_reason(hw, queue,
cca07b00
LC		 535 IEEE80211_QUEUE_STOP_REASON_DRIVER,
536 false);
ce7c9111 537}
c2d1560a
JB		 538EXPORT_SYMBOL(ieee80211_stop_queue);
539
8f77f384
JB		 540void ieee80211_add_pending_skb(struct ieee80211_local *local,
541 struct sk_buff *skb)
542{
543 struct ieee80211_hw *hw = &local->hw;
544 unsigned long flags;
a7bc376c 545 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3a25a8c8 546 int queue = info->hw_queue;
a7bc376c
JB		 547
548 if (WARN_ON(!info->control.vif)) {
d4fa14cd 549 ieee80211_free_txskb(&local->hw, skb);
a7bc376c
JB		 550 return;
551 }
8f77f384
JB		 552
553 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
cca07b00
LC		 554 __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
555 false);
3b8d81e0 556 __skb_queue_tail(&local->pending[queue], skb);
cca07b00 557 __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
f6c7f03f 558 false, &flags);
8f77f384
JB		 559 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
560}
561
e3685e03
JB		 562void ieee80211_add_pending_skbs(struct ieee80211_local *local,
563 struct sk_buff_head *skbs)
8f77f384
JB		 564{
565 struct ieee80211_hw *hw = &local->hw;
566 struct sk_buff *skb;
567 unsigned long flags;
b0b97a8a 568 int queue, i;
8f77f384
JB		 569
570 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
8f77f384 571 while ((skb = skb_dequeue(skbs))) {
a7bc376c
JB		 572 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
573
574 if (WARN_ON(!info->control.vif)) {
d4fa14cd 575 ieee80211_free_txskb(&local->hw, skb);
a7bc376c
JB		 576 continue;
577 }
578
3a25a8c8 579 queue = info->hw_queue;
4644ae89
JB		 580
581 __ieee80211_stop_queue(hw, queue,
cca07b00
LC		 582 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
583 false);
4644ae89 584
3b8d81e0 585 __skb_queue_tail(&local->pending[queue], skb);
8f77f384
JB		 586 }
587
3b8d81e0 588 for (i = 0; i < hw->queues; i++)
8f77f384 589 __ieee80211_wake_queue(hw, i,
cca07b00 590 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
f6c7f03f 591 false, &flags);
8f77f384 592 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
8f77f384
JB		 593}
594
ce7c9111 595void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
445ea4e8 596 unsigned long queues,
cca07b00
LC		 597 enum queue_stop_reason reason,
598 bool refcounted)
c2d1560a 599{
ce7c9111
KV		 600 struct ieee80211_local *local = hw_to_local(hw);
601 unsigned long flags;
c2d1560a
JB		 602 int i;
603
ce7c9111
KV		 604 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
605
445ea4e8 606 for_each_set_bit(i, &queues, hw->queues)
cca07b00 607 __ieee80211_stop_queue(hw, i, reason, refcounted);
ce7c9111
KV		 608
609 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
610}
611
612void ieee80211_stop_queues(struct ieee80211_hw *hw)
613{
445ea4e8 614 ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 615 IEEE80211_QUEUE_STOP_REASON_DRIVER,
616 false);
c2d1560a
JB		 617}
618EXPORT_SYMBOL(ieee80211_stop_queues);
619
92ab8535
TW		 620int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
621{
622 struct ieee80211_local *local = hw_to_local(hw);
3b8d81e0
JB		 623 unsigned long flags;
624 int ret;
96f5e66e 625
e4e72fb4
JB		 626 if (WARN_ON(queue >= hw->queues))
627 return true;
96f5e66e 628
3b8d81e0 629 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
2419ea14
TP		 630 ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER,
631 &local->queue_stop_reasons[queue]);
3b8d81e0
JB		 632 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
633 return ret;
92ab8535
TW		 634}
635EXPORT_SYMBOL(ieee80211_queue_stopped);
636
ce7c9111 637void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
445ea4e8 638 unsigned long queues,
cca07b00
LC		 639 enum queue_stop_reason reason,
640 bool refcounted)
c2d1560a 641{
ce7c9111
KV		 642 struct ieee80211_local *local = hw_to_local(hw);
643 unsigned long flags;
c2d1560a
JB		 644 int i;
645
ce7c9111
KV		 646 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
647
445ea4e8 648 for_each_set_bit(i, &queues, hw->queues)
f6c7f03f 649 __ieee80211_wake_queue(hw, i, reason, refcounted, &flags);
ce7c9111
KV		 650
651 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
652}
653
654void ieee80211_wake_queues(struct ieee80211_hw *hw)
655{
445ea4e8 656 ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 657 IEEE80211_QUEUE_STOP_REASON_DRIVER,
658 false);
c2d1560a
JB		 659}
660EXPORT_SYMBOL(ieee80211_wake_queues);
dabeb344 661
11ac0d7c 662unsigned int
26da23b6
LC		 663ieee80211_get_vif_queues(struct ieee80211_local *local,
664 struct ieee80211_sub_if_data *sdata)
39ecc01d 665{
26da23b6 666 unsigned int queues;
39ecc01d 667
30686bf7 668 if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) {
39ecc01d
JB		 669 int ac;
670
671 queues = 0;
672
673 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
11ac0d7c
EG		 674 if (sdata->vif.hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
675 queues |= BIT(sdata->vif.hw_queue[ac]);
39ecc01d
JB		 676 if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE)
677 queues |= BIT(sdata->vif.cab_queue);
678 } else {
679 /* all queues */
680 queues = BIT(local->hw.queues) - 1;
681 }
682
26da23b6
LC		 683 return queues;
684}
685
4f9610d5
LK		 686void __ieee80211_flush_queues(struct ieee80211_local *local,
687 struct ieee80211_sub_if_data *sdata,
3b24f4c6 688 unsigned int queues, bool drop)
26da23b6 689{
5b999006 690 if (!local->ops->flush && !drop)
26da23b6
LC		 691 return;
692
4f9610d5
LK		 693 /*
694 * If no queue was set, or if the HW doesn't support
695 * IEEE80211_HW_QUEUE_CONTROL - flush all queues
696 */
30686bf7 697 if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
4f9610d5 698 queues = ieee80211_get_vif_queues(local, sdata);
26da23b6 699
59f48fe2 700 ieee80211_stop_queues_by_reason(&local->hw, queues,
cca07b00
LC		 701 IEEE80211_QUEUE_STOP_REASON_FLUSH,
702 false);
445ea4e8 703
3831f6d8
MK		 704 if (drop) {
705 struct sta_info *sta;
706
707 /* Purge the queues, so the frames on them won't be
708 * sent during __ieee80211_wake_queue()
709 */
710 list_for_each_entry(sta, &local->sta_list, list) {
711 if (sdata != sta->sdata)
712 continue;
713 ieee80211_purge_sta_txqs(sta);
714 }
715 }
716
5b999006
AW		 717 if (local->ops->flush)
718 drv_flush(local, sdata, queues, drop);
445ea4e8 719
59f48fe2 720 ieee80211_wake_queues_by_reason(&local->hw, queues,
cca07b00
LC		 721 IEEE80211_QUEUE_STOP_REASON_FLUSH,
722 false);
39ecc01d
JB		 723}
724
4f9610d5 725void ieee80211_flush_queues(struct ieee80211_local *local,
3b24f4c6 726 struct ieee80211_sub_if_data *sdata, bool drop)
4f9610d5 727{
3b24f4c6 728 __ieee80211_flush_queues(local, sdata, 0, drop);
4f9610d5
LK		 729}
730
3384d757
AN		 731static void __iterate_interfaces(struct ieee80211_local *local,
732 u32 iter_flags,
733 void (*iterator)(void *data, u8 *mac,
734 struct ieee80211_vif *vif),
735 void *data)
dabeb344 736{
dabeb344 737 struct ieee80211_sub_if_data *sdata;
3384d757 738 bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE;
dabeb344 739
ac351800
JB		 740 list_for_each_entry_rcu(sdata, &local->interfaces, list,
741 lockdep_is_held(&local->iflist_mtx) ||
742 lockdep_is_held(&local->hw.wiphy->mtx)) {
2f561feb 743 switch (sdata->vif.type) {
05c914fe 744 case NL80211_IFTYPE_MONITOR:
9d40f7e3
FF		 745 if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) &&
746 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
31eba5bc
FF		 747 continue;
748 break;
05c914fe 749 case NL80211_IFTYPE_AP_VLAN:
2f561feb 750 continue;
2ca27bcf 751 default:
2f561feb
ID		 752 break;
753 }
8b2c9824 754 if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
3384d757 755 active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
8b2c9824 756 continue;
265a0708
BG		 757 if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) &&
758 !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
759 continue;
3384d757 760 if (ieee80211_sdata_running(sdata) || !active_only)
47846c9b 761 iterator(data, sdata->vif.addr,
2f561feb
ID		 762 &sdata->vif);
763 }
764
c7c71066
JB		 765 sdata = rcu_dereference_check(local->monitor_sdata,
766 lockdep_is_held(&local->iflist_mtx) ||
6dd23603 767 lockdep_is_held(&local->hw.wiphy->mtx));
8f4fa087 768 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
3384d757 769 (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only ||
8b2c9824 770 sdata->flags & IEEE80211_SDATA_IN_DRIVER))
685fb72b 771 iterator(data, sdata->vif.addr, &sdata->vif);
c7c71066 772}
685fb72b 773
3384d757 774void ieee80211_iterate_interfaces(
c7c71066
JB		 775 struct ieee80211_hw *hw, u32 iter_flags,
776 void (*iterator)(void *data, u8 *mac,
777 struct ieee80211_vif *vif),
778 void *data)
779{
780 struct ieee80211_local *local = hw_to_local(hw);
781
782 mutex_lock(&local->iflist_mtx);
3384d757 783 __iterate_interfaces(local, iter_flags, iterator, data);
c771c9d8 784 mutex_unlock(&local->iflist_mtx);
2f561feb 785}
3384d757 786EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces);
2f561feb
ID		 787
788void ieee80211_iterate_active_interfaces_atomic(
8b2c9824 789 struct ieee80211_hw *hw, u32 iter_flags,
2f561feb
ID		 790 void (*iterator)(void *data, u8 *mac,
791 struct ieee80211_vif *vif),
792 void *data)
793{
794 struct ieee80211_local *local = hw_to_local(hw);
2f561feb 795
e38bad47 796 rcu_read_lock();
3384d757
AN		 797 __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE,
798 iterator, data);
c7c71066
JB		 799 rcu_read_unlock();
800}
801EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
dabeb344 802
a05829a7 803void ieee80211_iterate_active_interfaces_mtx(
c7c71066
JB		 804 struct ieee80211_hw *hw, u32 iter_flags,
805 void (*iterator)(void *data, u8 *mac,
806 struct ieee80211_vif *vif),
807 void *data)
808{
809 struct ieee80211_local *local = hw_to_local(hw);
e38bad47 810
a05829a7 811 lockdep_assert_wiphy(hw->wiphy);
685fb72b 812
3384d757
AN		 813 __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE,
814 iterator, data);
dabeb344 815}
a05829a7 816EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx);
37ffc8da 817
0fc1e049
AN		 818static void __iterate_stations(struct ieee80211_local *local,
819 void (*iterator)(void *data,
820 struct ieee80211_sta *sta),
821 void *data)
822{
823 struct sta_info *sta;
824
7c3b69ea
RL		 825 list_for_each_entry_rcu(sta, &local->sta_list, list,
826 lockdep_is_held(&local->hw.wiphy->mtx)) {
0fc1e049
AN		 827 if (!sta->uploaded)
828 continue;
829
830 iterator(data, &sta->sta);
831 }
832}
833
834void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw,
835 void (*iterator)(void *data,
836 struct ieee80211_sta *sta),
837 void *data)
838{
839 struct ieee80211_local *local = hw_to_local(hw);
840
841 rcu_read_lock();
842 __iterate_stations(local, iterator, data);
843 rcu_read_unlock();
844}
845EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic);
846
7c3b69ea
RL		 847void ieee80211_iterate_stations_mtx(struct ieee80211_hw *hw,
848 void (*iterator)(void *data,
849 struct ieee80211_sta *sta),
850 void *data)
851{
852 struct ieee80211_local *local = hw_to_local(hw);
853
854 lockdep_assert_wiphy(local->hw.wiphy);
855
856 __iterate_stations(local, iterator, data);
857}
858EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_mtx);
859
ad7e718c
JB		 860struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev)
861{
862 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
863
864 if (!ieee80211_sdata_running(sdata) ||
865 !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
866 return NULL;
867 return &sdata->vif;
868}
869EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif);
870
dc5a1ad7
EG		 871struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
872{
6513e98e
JB		 873 if (!vif)
874 return NULL;
875
f30386a8 876 return &vif_to_sdata(vif)->wdev;
dc5a1ad7
EG		 877}
878EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev);
879
42935eca
LR		 880/*
881 * Nothing should have been stuffed into the workqueue during
4afaff17
EG		 882 * the suspend->resume cycle. Since we can't check each caller
883 * of this function if we are already quiescing / suspended,
884 * check here and don't WARN since this can actually happen when
885 * the rx path (for example) is racing against __ieee80211_suspend
886 * and suspending / quiescing was set after the rx path checked
887 * them.
42935eca
LR		 888 */
889static bool ieee80211_can_queue_work(struct ieee80211_local *local)
890{
4afaff17
EG		 891 if (local->quiescing || (local->suspended && !local->resuming)) {
892 pr_warn("queueing ieee80211 work while going to suspend\n");
ceb99fe0 893 return false;
4afaff17 894 }
42935eca
LR		 895
896 return true;
897}
898
899void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work)
900{
901 struct ieee80211_local *local = hw_to_local(hw);
902
903 if (!ieee80211_can_queue_work(local))
904 return;
905
906 queue_work(local->workqueue, work);
907}
908EXPORT_SYMBOL(ieee80211_queue_work);
909
910void ieee80211_queue_delayed_work(struct ieee80211_hw *hw,
911 struct delayed_work *dwork,
912 unsigned long delay)
913{
914 struct ieee80211_local *local = hw_to_local(hw);
915
916 if (!ieee80211_can_queue_work(local))
917 return;
918
919 queue_delayed_work(local->workqueue, dwork, delay);
920}
921EXPORT_SYMBOL(ieee80211_queue_delayed_work);
922
e552af05
HD		 923void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
924 struct ieee80211_tx_queue_params
925 *qparam, int ac)
926{
927 struct ieee80211_chanctx_conf *chanctx_conf;
928 const struct ieee80211_reg_rule *rrule;
38cb87ee 929 const struct ieee80211_wmm_ac *wmm_ac;
e552af05
HD		 930 u16 center_freq = 0;
931
932 if (sdata->vif.type != NL80211_IFTYPE_AP &&
933 sdata->vif.type != NL80211_IFTYPE_STATION)
934 return;
935
936 rcu_read_lock();
d0a9123e 937 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
e552af05
HD		 938 if (chanctx_conf)
939 center_freq = chanctx_conf->def.chan->center_freq;
940
941 if (!center_freq) {
942 rcu_read_unlock();
943 return;
944 }
945
946 rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq));
947
38cb87ee 948 if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) {
e552af05
HD		 949 rcu_read_unlock();
950 return;
951 }
952
953 if (sdata->vif.type == NL80211_IFTYPE_AP)
38cb87ee 954 wmm_ac = &rrule->wmm_rule.ap[ac];
e552af05 955 else
38cb87ee 956 wmm_ac = &rrule->wmm_rule.client[ac];
e552af05
HD		 957 qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min);
958 qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max);
959 qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn);
abd76d25 960 qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32);
e552af05
HD		 961 rcu_read_unlock();
962}
963
b3e2130b 964void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
cec66283 965 bool bss_notify, bool enable_qos)
5825fe10 966{
b3e2130b 967 struct ieee80211_sub_if_data *sdata = link->sdata;
5825fe10
JB		 968 struct ieee80211_local *local = sdata->local;
969 struct ieee80211_tx_queue_params qparam;
55de908a 970 struct ieee80211_chanctx_conf *chanctx_conf;
54bcbc69 971 int ac;
cec66283 972 bool use_11b;
239281f8 973 bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */
aa837e1d 974 int aCWmin, aCWmax;
5825fe10
JB		 975
976 if (!local->ops->conf_tx)
977 return;
978
54bcbc69
JB		 979 if (local->hw.queues < IEEE80211_NUM_ACS)
980 return;
981
5825fe10
JB		 982 memset(&qparam, 0, sizeof(qparam));
983
55de908a 984 rcu_read_lock();
b3e2130b 985 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
55de908a 986 use_11b = (chanctx_conf &&
57fbcce3 987 chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) &&
39eac2de 988 !link->operating_11g_mode;
55de908a 989 rcu_read_unlock();
5825fe10 990
239281f8
RL		 991 is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB);
992
1f4ffde8
FZ		 993 /* Set defaults according to 802.11-2007 Table 7-37 */
994 aCWmax = 1023;
995 if (use_11b)
996 aCWmin = 31;
997 else
998 aCWmin = 15;
999
4b482281 1000 /* Configure old 802.11b/g medium access rules. */
1f4ffde8
FZ		 1001 qparam.cw_max = aCWmax;
1002 qparam.cw_min = aCWmin;
1003 qparam.txop = 0;
1004 qparam.aifs = 2;
aa837e1d 1005
1f4ffde8
FZ		 1006 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1007 /* Update if QoS is enabled. */
a8ce8544
SG		 1008 if (enable_qos) {
1009 switch (ac) {
1010 case IEEE80211_AC_BK:
1011 qparam.cw_max = aCWmax;
1012 qparam.cw_min = aCWmin;
1013 qparam.txop = 0;
239281f8
RL		 1014 if (is_ocb)
1015 qparam.aifs = 9;
1016 else
1017 qparam.aifs = 7;
a8ce8544
SG		 1018 break;
1019 /* never happens but let's not leave undefined */
1020 default:
1021 case IEEE80211_AC_BE:
1022 qparam.cw_max = aCWmax;
1023 qparam.cw_min = aCWmin;
1024 qparam.txop = 0;
239281f8
RL		 1025 if (is_ocb)
1026 qparam.aifs = 6;
1027 else
1028 qparam.aifs = 3;
a8ce8544
SG		 1029 break;
1030 case IEEE80211_AC_VI:
1031 qparam.cw_max = aCWmin;
1032 qparam.cw_min = (aCWmin + 1) / 2 - 1;
239281f8
RL		 1033 if (is_ocb)
1034 qparam.txop = 0;
1035 else if (use_11b)
a8ce8544
SG		 1036 qparam.txop = 6016/32;
1037 else
1038 qparam.txop = 3008/32;
239281f8
RL		 1039
1040 if (is_ocb)
1041 qparam.aifs = 3;
1042 else
1043 qparam.aifs = 2;
a8ce8544
SG		 1044 break;
1045 case IEEE80211_AC_VO:
1046 qparam.cw_max = (aCWmin + 1) / 2 - 1;
1047 qparam.cw_min = (aCWmin + 1) / 4 - 1;
239281f8
RL		 1048 if (is_ocb)
1049 qparam.txop = 0;
1050 else if (use_11b)
a8ce8544
SG		 1051 qparam.txop = 3264/32;
1052 else
1053 qparam.txop = 1504/32;
1054 qparam.aifs = 2;
1055 break;
1056 }
aa837e1d 1057 }
e552af05 1058 ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac);
5825fe10 1059
ab13315a
KV		 1060 qparam.uapsd = false;
1061
b3e2130b
JB		 1062 link->tx_conf[ac] = qparam;
1063 drv_conf_tx(local, link, ac, &qparam);
aa837e1d 1064 }
e1b3ec1a 1065
f142c6b9 1066 if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
708d50ed
AB		 1067 sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
1068 sdata->vif.type != NL80211_IFTYPE_NAN) {
b3e2130b 1069 link->conf->qos = enable_qos;
3abead59 1070 if (bss_notify)
b3e2130b 1071 ieee80211_link_info_change_notify(sdata, link,
7b7090b4 1072 BSS_CHANGED_QOS);
d9734979 1073 }
5825fe10 1074}
e50db65c 1075
46900298 1076void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
700e8ea6 1077 u16 transaction, u16 auth_alg, u16 status,
4a3cb702 1078 const u8 *extra, size_t extra_len, const u8 *da,
1672c0e3
JB		 1079 const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx,
1080 u32 tx_flags)
46900298
JB		 1081{
1082 struct ieee80211_local *local = sdata->local;
1083 struct sk_buff *skb;
1084 struct ieee80211_mgmt *mgmt;
f1871abd 1085 bool multi_link = ieee80211_vif_is_mld(&sdata->vif);
8ec9a96b
JB		 1086 struct {
1087 u8 id;
1088 u8 len;
1089 u8 ext_id;
1090 struct ieee80211_multi_link_elem ml;
1091 struct ieee80211_mle_basic_common_info basic;
1092 } __packed mle = {
1093 .id = WLAN_EID_EXTENSION,
1094 .len = sizeof(mle) - 2,
1095 .ext_id = WLAN_EID_EXT_EHT_MULTI_LINK,
1096 .ml.control = cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC),
1097 .basic.len = sizeof(mle.basic),
1098 };
fffd0934 1099 int err;
46900298 1100
8ec9a96b
JB		 1101 memcpy(mle.basic.mld_mac_addr, sdata->vif.addr, ETH_ALEN);
1102
15e230ab 1103 /* 24 + 6 = header + auth_algo + auth_transaction + status_code */
744462a9 1104 skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN +
8ec9a96b
JB		 1105 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN +
1106 multi_link * sizeof(mle));
d15b8459 1107 if (!skb)
46900298 1108 return;
d15b8459 1109
744462a9 1110 skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN);
46900298 1111
b080db58 1112 mgmt = skb_put_zero(skb, 24 + 6);
46900298
JB		 1113 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1114 IEEE80211_STYPE_AUTH);
efa6a09d 1115 memcpy(mgmt->da, da, ETH_ALEN);
47846c9b 1116 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
46900298
JB		 1117 memcpy(mgmt->bssid, bssid, ETH_ALEN);
1118 mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg);
1119 mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
700e8ea6 1120 mgmt->u.auth.status_code = cpu_to_le16(status);
46900298 1121 if (extra)
59ae1d12 1122 skb_put_data(skb, extra, extra_len);
8ec9a96b
JB		 1123 if (multi_link)
1124 skb_put_data(skb, &mle, sizeof(mle));
46900298 1125
fffd0934
JB		 1126 if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) {
1127 mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
1128 err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx);
7d7b0075
JB		 1129 if (WARN_ON(err)) {
1130 kfree_skb(skb);
1131 return;
1132 }
fffd0934
JB		 1133 }
1134
1672c0e3
JB		 1135 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
1136 tx_flags;
62ae67be 1137 ieee80211_tx_skb(sdata, skb);
46900298
JB		 1138}
1139
6ae16775 1140void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
4b08d1b6
JB		 1141 const u8 *da, const u8 *bssid,
1142 u16 stype, u16 reason,
6ae16775
AQ		 1143 bool send_frame, u8 *frame_buf)
1144{
1145 struct ieee80211_local *local = sdata->local;
1146 struct sk_buff *skb;
1147 struct ieee80211_mgmt *mgmt = (void *)frame_buf;
1148
1149 /* build frame */
1150 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1151 mgmt->duration = 0; /* initialize only */
1152 mgmt->seq_ctrl = 0; /* initialize only */
4b08d1b6 1153 memcpy(mgmt->da, da, ETH_ALEN);
6ae16775
AQ		 1154 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
1155 memcpy(mgmt->bssid, bssid, ETH_ALEN);
1156 /* u.deauth.reason_code == u.disassoc.reason_code */
1157 mgmt->u.deauth.reason_code = cpu_to_le16(reason);
1158
1159 if (send_frame) {
1160 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
1161 IEEE80211_DEAUTH_FRAME_LEN);
1162 if (!skb)
1163 return;
1164
1165 skb_reserve(skb, local->hw.extra_tx_headroom);
1166
1167 /* copy in frame */
59ae1d12 1168 skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN);
6ae16775
AQ		 1169
1170 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
1171 !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1172 IEEE80211_SKB_CB(skb)->flags |=
1173 IEEE80211_TX_INTFL_DONT_ENCRYPT;
1174
1175 ieee80211_tx_skb(sdata, skb);
1176 }
1177}
1178
07095d16
JB		 1179static int ieee80211_put_s1g_cap(struct sk_buff *skb,
1180 struct ieee80211_sta_s1g_cap *s1g_cap)
2ad2274c 1181{
07095d16
JB		 1182 if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_s1g_cap))
1183 return -ENOBUFS;
2ad2274c 1184
07095d16
JB		 1185 skb_put_u8(skb, WLAN_EID_S1G_CAPABILITIES);
1186 skb_put_u8(skb, sizeof(struct ieee80211_s1g_cap));
1187
1188 skb_put_data(skb, &s1g_cap->cap, sizeof(s1g_cap->cap));
1189 skb_put_data(skb, &s1g_cap->nss_mcs, sizeof(s1g_cap->nss_mcs));
2ad2274c 1190
07095d16 1191 return 0;
2ad2274c
IP		 1192}
1193
07095d16
JB		 1194static int ieee80211_put_preq_ies_band(struct sk_buff *skb,
1195 struct ieee80211_sub_if_data *sdata,
1196 const u8 *ie, size_t ie_len,
1197 size_t *offset,
1198 enum nl80211_band band,
1199 u32 rate_mask,
1200 struct cfg80211_chan_def *chandef,
1201 u32 flags)
de95a54b 1202{
2ad2274c 1203 struct ieee80211_local *local = sdata->local;
de95a54b 1204 struct ieee80211_supported_band *sband;
07095d16 1205 int i, err;
c56ef672 1206 size_t noffset;
40a11ca8 1207 bool have_80mhz = false;
de95a54b 1208
c56ef672
DS		 1209 *offset = 0;
1210
4d36ec58 1211 sband = local->hw.wiphy->bands[band];
d811b3d5
AN		 1212 if (WARN_ON_ONCE(!sband))
1213 return 0;
de95a54b 1214
0333a81b 1215 /* For direct scan add S1G IE and consider its override bits */
07095d16
JB		 1216 if (band == NL80211_BAND_S1GHZ)
1217 return ieee80211_put_s1g_cap(skb, &sband->s1g_cap);
8e664fb3 1218
996c15bd 1219 err = ieee80211_put_srates_elem(skb, sband, 0,
b7322933 1220 ~rate_mask, WLAN_EID_SUPP_RATES);
07095d16
JB		 1221 if (err)
1222 return err;
8e664fb3
JB		 1223
1224 /* insert "request information" if in custom IEs */
1225 if (ie && ie_len) {
1226 static const u8 before_extrates[] = {
1227 WLAN_EID_SSID,
1228 WLAN_EID_SUPP_RATES,
1229 WLAN_EID_REQUEST,
1230 };
1231 noffset = ieee80211_ie_split(ie, ie_len,
1232 before_extrates,
1233 ARRAY_SIZE(before_extrates),
c56ef672 1234 *offset);
07095d16
JB		 1235 if (skb_tailroom(skb) < noffset - *offset)
1236 return -ENOBUFS;
1237 skb_put_data(skb, ie + *offset, noffset - *offset);
c56ef672 1238 *offset = noffset;
8e664fb3
JB		 1239 }
1240
996c15bd 1241 err = ieee80211_put_srates_elem(skb, sband, 0,
b7322933 1242 ~rate_mask, WLAN_EID_EXT_SUPP_RATES);
07095d16
JB		 1243 if (err)
1244 return err;
8e664fb3 1245
57fbcce3 1246 if (chandef->chan && sband->band == NL80211_BAND_2GHZ) {
07095d16
JB		 1247 if (skb_tailroom(skb) < 3)
1248 return -ENOBUFS;
1249 skb_put_u8(skb, WLAN_EID_DS_PARAMS);
1250 skb_put_u8(skb, 1);
1251 skb_put_u8(skb,
1252 ieee80211_frequency_to_channel(chandef->chan->center_freq));
651b5225
JM		 1253 }
1254
b9771d41 1255 if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT)
07095d16 1256 return 0;
b9771d41 1257
8e664fb3
JB		 1258 /* insert custom IEs that go before HT */
1259 if (ie && ie_len) {
1260 static const u8 before_ht[] = {
a7f26d80
JB		 1261 /*
1262 * no need to list the ones split off already
1263 * (or generated here)
1264 */
8e664fb3
JB		 1265 WLAN_EID_DS_PARAMS,
1266 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
1267 };
1268 noffset = ieee80211_ie_split(ie, ie_len,
1269 before_ht, ARRAY_SIZE(before_ht),
c56ef672 1270 *offset);
07095d16
JB		 1271 if (skb_tailroom(skb) < noffset - *offset)
1272 return -ENOBUFS;
1273 skb_put_data(skb, ie + *offset, noffset - *offset);
c56ef672 1274 *offset = noffset;
de95a54b
JB		 1275 }
1276
c604b9f2 1277 if (sband->ht_cap.ht_supported) {
07095d16
JB		 1278 u8 *pos;
1279
1280 if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
1281 return -ENOBUFS;
1282
1283 pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap));
1284 ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
1285 sband->ht_cap.cap);
c604b9f2 1286 }
5ef2d41a 1287
4d952300 1288 /* insert custom IEs that go before VHT */
8e664fb3 1289 if (ie && ie_len) {
4d952300 1290 static const u8 before_vht[] = {
a7f26d80
JB		 1291 /*
1292 * no need to list the ones split off already
1293 * (or generated here)
1294 */
4d952300
JB		 1295 WLAN_EID_BSS_COEX_2040,
1296 WLAN_EID_EXT_CAPABILITY,
1297 WLAN_EID_SSID_LIST,
1298 WLAN_EID_CHANNEL_USAGE,
1299 WLAN_EID_INTERWORKING,
b44eebea 1300 WLAN_EID_MESH_ID,
a7f26d80 1301 /* 60 GHz (Multi-band, DMG, MMS) can't happen */
4d952300
JB		 1302 };
1303 noffset = ieee80211_ie_split(ie, ie_len,
1304 before_vht, ARRAY_SIZE(before_vht),
c56ef672 1305 *offset);
07095d16
JB		 1306 if (skb_tailroom(skb) < noffset - *offset)
1307 return -ENOBUFS;
1308 skb_put_data(skb, ie + *offset, noffset - *offset);
c56ef672 1309 *offset = noffset;
de95a54b
JB		 1310 }
1311
40a11ca8
JB		 1312 /* Check if any channel in this sband supports at least 80 MHz */
1313 for (i = 0; i < sband->n_channels; i++) {
fa44b988
AN		 1314 if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
1315 IEEE80211_CHAN_NO_80MHZ))
1316 continue;
1317
1318 have_80mhz = true;
1319 break;
40a11ca8
JB		 1320 }
1321
1322 if (sband->vht_cap.vht_supported && have_80mhz) {
07095d16
JB		 1323 u8 *pos;
1324
1325 if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_vht_cap))
1326 return -ENOBUFS;
1327
1328 pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_cap));
1329 ieee80211_ie_build_vht_cap(pos, &sband->vht_cap,
1330 sband->vht_cap.cap);
c604b9f2 1331 }
ba0afa2f 1332
41cbb0f5
LC		 1333 /* insert custom IEs that go before HE */
1334 if (ie && ie_len) {
1335 static const u8 before_he[] = {
1336 /*
1337 * no need to list the ones split off before VHT
1338 * or generated here
1339 */
1340 WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS,
1341 WLAN_EID_AP_CSN,
1342 /* TODO: add 11ah/11aj/11ak elements */
1343 };
1344 noffset = ieee80211_ie_split(ie, ie_len,
1345 before_he, ARRAY_SIZE(before_he),
1346 *offset);
07095d16
JB		 1347 if (skb_tailroom(skb) < noffset - *offset)
1348 return -ENOBUFS;
1349 skb_put_data(skb, ie + *offset, noffset - *offset);
41cbb0f5
LC		 1350 *offset = noffset;
1351 }
1352
28aa895b 1353 if (cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
0bc47057 1354 IEEE80211_CHAN_NO_HE)) {
28aa895b
JB		 1355 err = ieee80211_put_he_cap(skb, sdata, sband, NULL);
1356 if (err)
1357 return err;
7d29bc50
JB		 1358 }
1359
ea8af8be 1360 if (cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
820acc81
IP		 1361 IEEE80211_CHAN_NO_HE |
1362 IEEE80211_CHAN_NO_EHT)) {
ea8af8be
JB		 1363 err = ieee80211_put_eht_cap(skb, sdata, sband, NULL);
1364 if (err)
1365 return err;
820acc81
IP		 1366 }
1367
07095d16
JB		 1368 err = ieee80211_put_he_6ghz_cap(skb, sdata, IEEE80211_SMPS_OFF);
1369 if (err)
1370 return err;
41cbb0f5
LC		 1371
1372 /*
1373 * If adding more here, adjust code in main.c
1374 * that calculates local->scan_ies_len.
1375 */
1376
07095d16 1377 return 0;
de95a54b
JB		 1378}
1379
07095d16
JB		 1380static int ieee80211_put_preq_ies(struct sk_buff *skb,
1381 struct ieee80211_sub_if_data *sdata,
1382 struct ieee80211_scan_ies *ie_desc,
1383 const u8 *ie, size_t ie_len,
1384 u8 bands_used, u32 *rate_masks,
1385 struct cfg80211_chan_def *chandef,
1386 u32 flags)
c56ef672 1387{
07095d16
JB		 1388 size_t custom_ie_offset = 0;
1389 int i, err;
c56ef672
DS		 1390
1391 memset(ie_desc, 0, sizeof(*ie_desc));
1392
57fbcce3 1393 for (i = 0; i < NUM_NL80211_BANDS; i++) {
c56ef672 1394 if (bands_used & BIT(i)) {
07095d16
JB		 1395 ie_desc->ies[i] = skb_tail_pointer(skb);
1396 err = ieee80211_put_preq_ies_band(skb, sdata,
1397 ie, ie_len,
1398 &custom_ie_offset,
1399 i, rate_masks[i],
1400 chandef, flags);
1401 if (err)
1402 return err;
1403 ie_desc->len[i] = skb_tail_pointer(skb) -
1404 ie_desc->ies[i];
c56ef672
DS		 1405 }
1406 }
1407
1408 /* add any remaining custom IEs */
1409 if (ie && ie_len) {
07095d16 1410 if (WARN_ONCE(skb_tailroom(skb) < ie_len - custom_ie_offset,
c56ef672 1411 "not enough space for preq custom IEs\n"))
07095d16
JB		 1412 return -ENOBUFS;
1413 ie_desc->common_ies = skb_tail_pointer(skb);
1414 skb_put_data(skb, ie + custom_ie_offset,
1415 ie_len - custom_ie_offset);
1416 ie_desc->common_ie_len = skb_tail_pointer(skb) -
1417 ie_desc->common_ies;
c56ef672
DS		 1418 }
1419
07095d16 1420 return 0;
c56ef672
DS		 1421};
1422
07095d16
JB		 1423int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
1424 size_t buffer_len,
1425 struct ieee80211_scan_ies *ie_desc,
1426 const u8 *ie, size_t ie_len,
1427 u8 bands_used, u32 *rate_masks,
1428 struct cfg80211_chan_def *chandef,
1429 u32 flags)
1430{
1431 struct sk_buff *skb = alloc_skb(buffer_len, GFP_KERNEL);
1432 uintptr_t offs;
1433 int ret, i;
1434 u8 *start;
1435
1436 if (!skb)
1437 return -ENOMEM;
1438
1439 start = skb_tail_pointer(skb);
1440 memset(start, 0, skb_tailroom(skb));
1441 ret = ieee80211_put_preq_ies(skb, sdata, ie_desc, ie, ie_len,
1442 bands_used, rate_masks, chandef,
1443 flags);
1444 if (ret < 0) {
1445 goto out;
1446 }
1447
1448 if (skb->len > buffer_len) {
1449 ret = -ENOBUFS;
1450 goto out;
1451 }
1452
1453 memcpy(buffer, start, skb->len);
1454
1455 /* adjust ie_desc for copy */
1456 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1457 offs = ie_desc->ies[i] - start;
1458 ie_desc->ies[i] = buffer + offs;
1459 }
1460 offs = ie_desc->common_ies - start;
1461 ie_desc->common_ies = buffer + offs;
1462
1463 ret = skb->len;
1464out:
1465 consume_skb(skb);
1466 return ret;
1467}
1468
a619a4c0 1469struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
a344d677
JB		 1470 const u8 *src, const u8 *dst,
1471 u32 ratemask,
6b77863b 1472 struct ieee80211_channel *chan,
a619a4c0 1473 const u8 *ssid, size_t ssid_len,
a806c558 1474 const u8 *ie, size_t ie_len,
00387f32 1475 u32 flags)
46900298
JB		 1476{
1477 struct ieee80211_local *local = sdata->local;
2103dec1 1478 struct cfg80211_chan_def chandef;
46900298
JB		 1479 struct sk_buff *skb;
1480 struct ieee80211_mgmt *mgmt;
57fbcce3 1481 u32 rate_masks[NUM_NL80211_BANDS] = {};
c56ef672 1482 struct ieee80211_scan_ies dummy_ie_desc;
46900298 1483
a806c558
PS		 1484 /*
1485 * Do not send DS Channel parameter for directed probe requests
1486 * in order to maximize the chance that we get a response. Some
1487 * badly-behaved APs don't respond when this parameter is included.
1488 */
6092077a 1489 chandef.width = sdata->vif.bss_conf.chanreq.oper.width;
00387f32 1490 if (flags & IEEE80211_PROBE_FLAG_DIRECTED)
2103dec1 1491 chandef.chan = NULL;
a806c558 1492 else
2103dec1 1493 chandef.chan = chan;
651b5225 1494
a344d677 1495 skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len,
f22d9813 1496 local->scan_ies_len + ie_len);
5b2bbf75 1497 if (!skb)
b9a9ada1
JB		 1498 return NULL;
1499
c56ef672 1500 rate_masks[chan->band] = ratemask;
07095d16
JB		 1501 ieee80211_put_preq_ies(skb, sdata, &dummy_ie_desc,
1502 ie, ie_len, BIT(chan->band),
1503 rate_masks, &chandef, flags);
7c12ce8b 1504
46900298 1505 if (dst) {
7c12ce8b 1506 mgmt = (struct ieee80211_mgmt *) skb->data;
46900298
JB		 1507 memcpy(mgmt->da, dst, ETH_ALEN);
1508 memcpy(mgmt->bssid, dst, ETH_ALEN);
46900298 1509 }
46900298 1510
62ae67be 1511 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
5b2bbf75 1512
a619a4c0
JO		 1513 return skb;
1514}
1515
2103dec1 1516u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
46900298 1517 struct ieee802_11_elems *elems,
57fbcce3 1518 enum nl80211_band band, u32 *basic_rates)
46900298
JB		 1519{
1520 struct ieee80211_supported_band *sband;
46900298 1521 size_t num_rates;
996c15bd 1522 u32 supp_rates;
2400dfe2 1523 int i, j;
21a8e9dd 1524
2103dec1 1525 sband = sdata->local->hw.wiphy->bands[band];
21a8e9dd
MSS		 1526 if (WARN_ON(!sband))
1527 return 1;
2103dec1 1528
46900298
JB		 1529 num_rates = sband->n_bitrates;
1530 supp_rates = 0;
1531 for (i = 0; i < elems->supp_rates_len +
1532 elems->ext_supp_rates_len; i++) {
1533 u8 rate = 0;
1534 int own_rate;
9ebb61a2 1535 bool is_basic;
46900298
JB		 1536 if (i < elems->supp_rates_len)
1537 rate = elems->supp_rates[i];
1538 else if (elems->ext_supp_rates)
1539 rate = elems->ext_supp_rates
1540 [i - elems->supp_rates_len];
1541 own_rate = 5 * (rate & 0x7f);
9ebb61a2
AN		 1542 is_basic = !!(rate & 0x80);
1543
1544 if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
1545 continue;
1546
1547 for (j = 0; j < num_rates; j++) {
996c15bd 1548 int brate = sband->bitrates[j].bitrate;
2103dec1
SW		 1549
1550 if (brate == own_rate) {
46900298 1551 supp_rates |= BIT(j);
9ebb61a2
AN		 1552 if (basic_rates && is_basic)
1553 *basic_rates |= BIT(j);
1554 }
1555 }
46900298
JB		 1556 }
1557 return supp_rates;
1558}
f2753ddb 1559
1decf05d 1560void ieee80211_stop_device(struct ieee80211_local *local, bool suspend)
84f6a01c 1561{
321028bc 1562 local_bh_disable();
177c6ae9 1563 ieee80211_handle_queued_frames(local);
321028bc 1564 local_bh_enable();
177c6ae9 1565
84f6a01c 1566 ieee80211_led_radio(local, false);
67408c8c 1567 ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO);
84f6a01c 1568
a6add8be 1569 wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter);
84f6a01c
JB		 1570
1571 flush_workqueue(local->workqueue);
b920590f 1572 wiphy_work_flush(local->hw.wiphy, NULL);
1decf05d 1573 drv_stop(local, suspend);
84f6a01c
JB		 1574}
1575
74430f94
JB		 1576static void ieee80211_flush_completed_scan(struct ieee80211_local *local,
1577 bool aborted)
1578{
1579 /* It's possible that we don't handle the scan completion in
1580 * time during suspend, so if it's still marked as completed
1581 * here, queue the work and flush it to clean things up.
1582 * Instead of calling the worker function directly here, we
1583 * really queue it to avoid potential races with other flows
1584 * scheduling the same work.
1585 */
1586 if (test_bit(SCAN_COMPLETED, &local->scanning)) {
1587 /* If coming from reconfiguration failure, abort the scan so
1588 * we don't attempt to continue a partial HW scan - which is
1589 * possible otherwise if (e.g.) the 2.4 GHz portion was the
1590 * completed scan, and a 5 GHz portion is still pending.
1591 */
1592 if (aborted)
1593 set_bit(SCAN_ABORTED, &local->scanning);
20171251
JB		 1594 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
1595 wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work);
74430f94
JB		 1596 }
1597}
1598
f6837ba8
JB		 1599static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local)
1600{
1601 struct ieee80211_sub_if_data *sdata;
1602 struct ieee80211_chanctx *ctx;
1603
5435af6e
JB		 1604 lockdep_assert_wiphy(local->hw.wiphy);
1605
f6837ba8
JB		 1606 /*
1607 * We get here if during resume the device can't be restarted properly.
1608 * We might also get here if this happens during HW reset, which is a
1609 * slightly different situation and we need to drop all connections in
1610 * the latter case.
1611 *
1612 * Ask cfg80211 to turn off all interfaces, this will result in more
1613 * warnings but at least we'll then get into a clean stopped state.
1614 */
1615
1616 local->resuming = false;
1617 local->suspended = false;
7584f88f 1618 local->in_reconfig = false;
c4fdb081 1619 local->reconfig_failure = true;
f6837ba8 1620
74430f94
JB		 1621 ieee80211_flush_completed_scan(local, true);
1622
f6837ba8
JB		 1623 /* scheduled scan clearly can't be running any more, but tell
1624 * cfg80211 and clear local state
1625 */
1626 ieee80211_sched_scan_end(local);
1627
1628 list_for_each_entry(sdata, &local->interfaces, list)
1629 sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
1630
1631 /* Mark channel contexts as not being in the driver any more to avoid
1632 * removing them from the driver during the shutdown process...
1633 */
f6837ba8
JB		 1634 list_for_each_entry(ctx, &local->chanctx_list, list)
1635 ctx->driver_present = false;
f6837ba8
JB		 1636}
1637
153a5fc4 1638static void ieee80211_assign_chanctx(struct ieee80211_local *local,
b4f85443 1639 struct ieee80211_sub_if_data *sdata,
d8675a63 1640 struct ieee80211_link_data *link)
153a5fc4
SG		 1641{
1642 struct ieee80211_chanctx_conf *conf;
1643 struct ieee80211_chanctx *ctx;
1644
5435af6e
JB		 1645 lockdep_assert_wiphy(local->hw.wiphy);
1646
d8675a63 1647 conf = rcu_dereference_protected(link->conf->chanctx_conf,
5435af6e 1648 lockdep_is_held(&local->hw.wiphy->mtx));
153a5fc4
SG		 1649 if (conf) {
1650 ctx = container_of(conf, struct ieee80211_chanctx, conf);
727eff4d 1651 drv_assign_vif_chanctx(local, sdata, link->conf, ctx);
153a5fc4 1652 }
153a5fc4
SG		 1653}
1654
1ea2c864
JB		 1655static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata)
1656{
1657 struct ieee80211_local *local = sdata->local;
1658 struct sta_info *sta;
1659
4d3acf43 1660 lockdep_assert_wiphy(local->hw.wiphy);
5435af6e
JB		 1661
1662 /* add STAs back */
1ea2c864
JB		 1663 list_for_each_entry(sta, &local->sta_list, list) {
1664 enum ieee80211_sta_state state;
1665
1666 if (!sta->uploaded || sta->sdata != sdata)
1667 continue;
1668
1669 for (state = IEEE80211_STA_NOTEXIST;
1670 state < sta->sta_state; state++)
1671 WARN_ON(drv_sta_state(local, sta->sdata, sta, state,
1672 state + 1));
1673 }
1ea2c864
JB		 1674}
1675
167e33f4
AB		 1676static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata)
1677{
1678 struct cfg80211_nan_func *func, **funcs;
1679 int res, id, i = 0;
1680
1681 res = drv_start_nan(sdata->local, sdata,
1682 &sdata->u.nan.conf);
1683 if (WARN_ON(res))
1684 return res;
1685
6396bb22
KC		 1686 funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1,
1687 sizeof(*funcs),
1688 GFP_KERNEL);
167e33f4
AB		 1689 if (!funcs)
1690 return -ENOMEM;
1691
1692 /* Add all the functions:
1693 * This is a little bit ugly. We need to call a potentially sleeping
1694 * callback for each NAN function, so we can't hold the spinlock.
1695 */
1696 spin_lock_bh(&sdata->u.nan.func_lock);
1697
1698 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id)
1699 funcs[i++] = func;
1700
1701 spin_unlock_bh(&sdata->u.nan.func_lock);
1702
1703 for (i = 0; funcs[i]; i++) {
1704 res = drv_add_nan_func(sdata->local, sdata, funcs[i]);
1705 if (WARN_ON(res))
1706 ieee80211_nan_func_terminated(&sdata->vif,
1707 funcs[i]->instance_id,
1708 NL80211_NAN_FUNC_TERM_REASON_ERROR,
1709 GFP_KERNEL);
1710 }
1711
1712 kfree(funcs);
1713
1714 return 0;
1715}
1716
61403414
JB		 1717static void ieee80211_reconfig_ap_links(struct ieee80211_local *local,
1718 struct ieee80211_sub_if_data *sdata,
2a5325f8 1719 u64 changed)
61403414
JB		 1720{
1721 int link_id;
1722
1723 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
1724 struct ieee80211_link_data *link;
1725
1726 if (!(sdata->vif.active_links & BIT(link_id)))
1727 continue;
1728
1729 link = sdata_dereference(sdata->link[link_id], sdata);
1730 if (!link)
1731 continue;
1732
1733 if (rcu_access_pointer(link->u.ap.beacon))
1734 drv_start_ap(local, sdata, link->conf);
1735
1736 if (!link->conf->enable_beacon)
1737 continue;
1738
1739 changed |= BSS_CHANGED_BEACON |
1740 BSS_CHANGED_BEACON_ENABLED;
1741
1742 ieee80211_link_info_change_notify(sdata, link, changed);
1743 }
1744}
1745
f2753ddb
JB		 1746int ieee80211_reconfig(struct ieee80211_local *local)
1747{
1748 struct ieee80211_hw *hw = &local->hw;
1749 struct ieee80211_sub_if_data *sdata;
55de908a 1750 struct ieee80211_chanctx *ctx;
f2753ddb 1751 struct sta_info *sta;
2683d65b 1752 int res, i;
d888130a 1753 bool reconfig_due_to_wowlan = false;
d43c6b6e 1754 struct ieee80211_sub_if_data *sched_scan_sdata;
6ea0a69c 1755 struct cfg80211_sched_scan_request *sched_scan_req;
d43c6b6e 1756 bool sched_scan_stopped = false;
b0485e9f 1757 bool suspended = local->suspended;
7d352ccf 1758 bool in_reconfig = false;
d888130a 1759
5435af6e
JB		 1760 lockdep_assert_wiphy(local->hw.wiphy);
1761
0f8b8245
EP		 1762 /* nothing to do if HW shouldn't run */
1763 if (!local->open_count)
1764 goto wake_up;
1765
8f21b0ad 1766#ifdef CONFIG_PM
b0485e9f 1767 if (suspended)
ceb99fe0 1768 local->resuming = true;
f2753ddb 1769
eecc4800 1770 if (local->wowlan) {
b0485e9f
EP		 1771 /*
1772 * In the wowlan case, both mac80211 and the device
1773 * are functional when the resume op is called, so
1774 * clear local->suspended so the device could operate
1775 * normally (e.g. pass rx frames).
1776 */
1777 local->suspended = false;
eecc4800 1778 res = drv_resume(local);
27b3eb9c 1779 local->wowlan = false;
eecc4800
JB		 1780 if (res < 0) {
1781 local->resuming = false;
1782 return res;
1783 }
1784 if (res == 0)
1785 goto wake_up;
1786 WARN_ON(res > 1);
1787 /*
1788 * res is 1, which means the driver requested
1789 * to go through a regular reset on wakeup.
b0485e9f 1790 * restore local->suspended in this case.
eecc4800 1791 */
d888130a 1792 reconfig_due_to_wowlan = true;
b0485e9f 1793 local->suspended = true;
eecc4800
JB		 1794 }
1795#endif
f2753ddb 1796
43d6df00
EP		 1797 /*
1798 * In case of hw_restart during suspend (without wowlan),
1799 * cancel restart work, as we are reconfiguring the device
1800 * anyway.
1801 * Note that restart_work is scheduled on a frozen workqueue,
1802 * so we can't deadlock in this case.
1803 */
1804 if (suspended && local->in_reconfig && !reconfig_due_to_wowlan)
1805 cancel_work_sync(&local->restart_work);
1806
968a76ce
EP		 1807 local->started = false;
1808
94f9b97b
JB		 1809 /*
1810 * Upon resume hardware can sometimes be goofy due to
1811 * various platform / driver / bus issues, so restarting
1812 * the device may at times not work immediately. Propagate
1813 * the error.
1814 */
1815 res = drv_start(local);
1816 if (res) {
b0485e9f 1817 if (suspended)
f6837ba8
JB		 1818 WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n");
1819 else
1820 WARN(1, "Hardware became unavailable during restart.\n");
220bf000
EG		 1821 ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
1822 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1823 false);
f6837ba8 1824 ieee80211_handle_reconfig_failure(local);
94f9b97b 1825 return res;
f2753ddb
JB		 1826 }
1827
7f281975
YAP		 1828 /* setup fragmentation threshold */
1829 drv_set_frag_threshold(local, hw->wiphy->frag_threshold);
1830
1831 /* setup RTS threshold */
1832 drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
1833
1834 /* reset coverage class */
1835 drv_set_coverage_class(local, hw->wiphy->coverage_class);
1836
94f9b97b
JB		 1837 ieee80211_led_radio(local, true);
1838 ieee80211_mod_tpt_led_trig(local,
1839 IEEE80211_TPT_LEDTRIG_FL_RADIO, 0);
1840
f2753ddb 1841 /* add interfaces */
6dd23603 1842 sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata);
0d9c2bee 1843 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
3c3e21e7
JB		 1844 /* in HW restart it exists already */
1845 WARN_ON(local->resuming);
4b6f1dd6
JB		 1846 res = drv_add_interface(local, sdata);
1847 if (WARN_ON(res)) {
0c2bef46 1848 RCU_INIT_POINTER(local->monitor_sdata, NULL);
4b6f1dd6
JB		 1849 synchronize_net();
1850 kfree(sdata);
1851 }
1852 }
1853
f2753ddb 1854 list_for_each_entry(sdata, &local->interfaces, list) {
9d40f7e3
FF		 1855 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
1856 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
1857 continue;
f2753ddb 1858 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
c8fff3dc 1859 ieee80211_sdata_running(sdata)) {
7b7eab6f 1860 res = drv_add_interface(local, sdata);
c8fff3dc
LC		 1861 if (WARN_ON(res))
1862 break;
1863 }
1864 }
1865
1866 /* If adding any of the interfaces failed above, roll back and
1867 * report failure.
1868 */
1869 if (res) {
1870 list_for_each_entry_continue_reverse(sdata, &local->interfaces,
9d40f7e3
FF		 1871 list) {
1872 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
1873 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
1874 continue;
c8fff3dc 1875 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
c8fff3dc
LC		 1876 ieee80211_sdata_running(sdata))
1877 drv_remove_interface(local, sdata);
9d40f7e3 1878 }
c8fff3dc
LC		 1879 ieee80211_handle_reconfig_failure(local);
1880 return res;
f2753ddb
JB		 1881 }
1882
55de908a 1883 /* add channel contexts */
0a44dfc0
JB		 1884 list_for_each_entry(ctx, &local->chanctx_list, list)
1885 if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
1886 WARN_ON(drv_add_chanctx(local, ctx));
1887
1888 sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata);
1889 if (sdata && ieee80211_sdata_running(sdata))
1890 ieee80211_assign_chanctx(local, sdata, &sdata->deflink);
fe5f2559 1891
f2753ddb 1892 /* reconfigure hardware */
0a44dfc0
JB		 1893 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_LISTEN_INTERVAL |
1894 IEEE80211_CONF_CHANGE_MONITOR |
1895 IEEE80211_CONF_CHANGE_PS |
1896 IEEE80211_CONF_CHANGE_RETRY_LIMITS |
1897 IEEE80211_CONF_CHANGE_IDLE);
f2753ddb 1898
f2753ddb 1899 ieee80211_configure_filter(local);
f2753ddb
JB		 1900
1901 /* Finally also reconfigure all the BSS information */
1902 list_for_each_entry(sdata, &local->interfaces, list) {
acb8bca3 1903 /* common change flags for all interface types - link only */
2a5325f8 1904 u64 changed = BSS_CHANGED_ERP_CTS_PROT |
acb8bca3
JB		 1905 BSS_CHANGED_ERP_PREAMBLE |
1906 BSS_CHANGED_ERP_SLOT |
1907 BSS_CHANGED_HT |
1908 BSS_CHANGED_BASIC_RATES |
1909 BSS_CHANGED_BEACON_INT |
1910 BSS_CHANGED_BSSID |
1911 BSS_CHANGED_CQM |
1912 BSS_CHANGED_QOS |
1913 BSS_CHANGED_TXPOWER |
1914 BSS_CHANGED_MCAST_RATE;
1915 struct ieee80211_link_data *link = NULL;
d8675a63 1916 unsigned int link_id;
acb8bca3 1917 u32 active_links = 0;
ac8dd506 1918
9607e6b6 1919 if (!ieee80211_sdata_running(sdata))
f2753ddb 1920 continue;
ac8dd506 1921
f1871abd 1922 if (ieee80211_vif_is_mld(&sdata->vif)) {
acb8bca3
JB		 1923 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS] = {
1924 [0] = &sdata->vif.bss_conf,
1925 };
1926
1927 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
1928 /* start with a single active link */
1929 active_links = sdata->vif.active_links;
1930 link_id = ffs(active_links) - 1;
1931 sdata->vif.active_links = BIT(link_id);
1932 }
1933
1934 drv_change_vif_links(local, sdata, 0,
1935 sdata->vif.active_links,
1936 old);
1937 }
1938
a0b9ecff
JB		 1939 sdata->restart_active_links = active_links;
1940
d8675a63
JB		 1941 for (link_id = 0;
1942 link_id < ARRAY_SIZE(sdata->vif.link_conf);
1943 link_id++) {
68f6c6af 1944 if (!ieee80211_vif_link_active(&sdata->vif, link_id))
acb8bca3 1945 continue;
d8675a63
JB		 1946
1947 link = sdata_dereference(sdata->link[link_id], sdata);
acb8bca3
JB		 1948 if (!link)
1949 continue;
1950
1951 ieee80211_assign_chanctx(local, sdata, link);
b4f85443 1952 }
1ea2c864
JB		 1953
1954 switch (sdata->vif.type) {
1955 case NL80211_IFTYPE_AP_VLAN:
1956 case NL80211_IFTYPE_MONITOR:
1957 break;
4926b51b 1958 case NL80211_IFTYPE_ADHOC:
f276e20b 1959 if (sdata->vif.cfg.ibss_joined)
4926b51b 1960 WARN_ON(drv_join_ibss(local, sdata));
fc0561dc 1961 fallthrough;
1ea2c864
JB		 1962 default:
1963 ieee80211_reconfig_stations(sdata);
fc0561dc 1964 fallthrough;
1ea2c864
JB		 1965 case NL80211_IFTYPE_AP: /* AP stations are handled later */
1966 for (i = 0; i < IEEE80211_NUM_ACS; i++)
b3e2130b
JB		 1967 drv_conf_tx(local, &sdata->deflink, i,
1968 &sdata->deflink.tx_conf[i]);
1ea2c864
JB		 1969 break;
1970 }
ac8dd506 1971
d0a9123e 1972 if (sdata->vif.bss_conf.mu_mimo_owner)
23a1f8d4
SS		 1973 changed |= BSS_CHANGED_MU_GROUPS;
1974
f1871abd 1975 if (!ieee80211_vif_is_mld(&sdata->vif))
acb8bca3
JB		 1976 changed |= BSS_CHANGED_IDLE;
1977
f2753ddb
JB		 1978 switch (sdata->vif.type) {
1979 case NL80211_IFTYPE_STATION:
f1871abd 1980 if (!ieee80211_vif_is_mld(&sdata->vif)) {
acb8bca3
JB		 1981 changed |= BSS_CHANGED_ASSOC |
1982 BSS_CHANGED_ARP_FILTER |
1983 BSS_CHANGED_PS;
1984
1985 /* Re-send beacon info report to the driver */
1986 if (sdata->deflink.u.mgd.have_beacon)
1987 changed |= BSS_CHANGED_BEACON_INFO;
1988
1989 if (sdata->vif.bss_conf.max_idle_period ||
1990 sdata->vif.bss_conf.protected_keep_alive)
1991 changed |= BSS_CHANGED_KEEP_ALIVE;
1992
acb8bca3
JB		 1993 ieee80211_bss_info_change_notify(sdata,
1994 changed);
1995 } else if (!WARN_ON(!link)) {
1996 ieee80211_link_info_change_notify(sdata, link,
1997 changed);
1998 changed = BSS_CHANGED_ASSOC |
1999 BSS_CHANGED_IDLE |
2000 BSS_CHANGED_PS |
2001 BSS_CHANGED_ARP_FILTER;
2002 ieee80211_vif_cfg_change_notify(sdata, changed);
2003 }
ac8dd506 2004 break;
6e0bd6c3 2005 case NL80211_IFTYPE_OCB:
239281f8
RL		 2006 changed |= BSS_CHANGED_OCB;
2007 ieee80211_bss_info_change_notify(sdata, changed);
6e0bd6c3 2008 break;
f2753ddb 2009 case NL80211_IFTYPE_ADHOC:
ac8dd506 2010 changed |= BSS_CHANGED_IBSS;
fc0561dc 2011 fallthrough;
f2753ddb 2012 case NL80211_IFTYPE_AP:
61403414
JB		 2013 changed |= BSS_CHANGED_P2P_PS;
2014
f1871abd 2015 if (ieee80211_vif_is_mld(&sdata->vif))
61403414
JB		 2016 ieee80211_vif_cfg_change_notify(sdata,
2017 BSS_CHANGED_SSID);
2018 else
2019 changed |= BSS_CHANGED_SSID;
e7979ac7 2020
bc847970
PKC		 2021 if (sdata->vif.bss_conf.ftm_responder == 1 &&
2022 wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2023 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER))
2024 changed |= BSS_CHANGED_FTM_RESPONDER;
2025
1041638f 2026 if (sdata->vif.type == NL80211_IFTYPE_AP) {
e7979ac7
AN		 2027 changed |= BSS_CHANGED_AP_PROBE_RESP;
2028
f1871abd 2029 if (ieee80211_vif_is_mld(&sdata->vif)) {
61403414
JB		 2030 ieee80211_reconfig_ap_links(local,
2031 sdata,
2032 changed);
2033 break;
2034 }
2035
bfd8403a 2036 if (rcu_access_pointer(sdata->deflink.u.ap.beacon))
b327c84c
GG		 2037 drv_start_ap(local, sdata,
2038 sdata->deflink.conf);
1041638f 2039 }
fc0561dc 2040 fallthrough;
f2753ddb 2041 case NL80211_IFTYPE_MESH_POINT:
8da34932
JB		 2042 if (sdata->vif.bss_conf.enable_beacon) {
2043 changed |= BSS_CHANGED_BEACON |
2044 BSS_CHANGED_BEACON_ENABLED;
2045 ieee80211_bss_info_change_notify(sdata, changed);
2046 }
f2753ddb 2047 break;
167e33f4
AB		 2048 case NL80211_IFTYPE_NAN:
2049 res = ieee80211_reconfig_nan(sdata);
2050 if (res < 0) {
2051 ieee80211_handle_reconfig_failure(local);
2052 return res;
2053 }
2054 break;
f2753ddb
JB		 2055 case NL80211_IFTYPE_AP_VLAN:
2056 case NL80211_IFTYPE_MONITOR:
98104fde 2057 case NL80211_IFTYPE_P2P_DEVICE:
b205786e 2058 /* nothing to do */
f142c6b9 2059 break;
f2753ddb 2060 case NL80211_IFTYPE_UNSPECIFIED:
2e161f78 2061 case NUM_NL80211_IFTYPES:
2ca27bcf
JB		 2062 case NL80211_IFTYPE_P2P_CLIENT:
2063 case NL80211_IFTYPE_P2P_GO:
70d9c599 2064 case NL80211_IFTYPE_WDS:
f2753ddb
JB		 2065 WARN_ON(1);
2066 break;
2067 }
2068 }
2069
4a733ef1 2070 ieee80211_recalc_ps(local);
8e1b23b9 2071
6e1b1b24
EP		 2072 /*
2073 * The sta might be in psm against the ap (e.g. because
2074 * this was the state before a hw restart), so we
2075 * explicitly send a null packet in order to make sure
2076 * it'll sync against the ap (and get out of psm).
2077 */
2078 if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) {
2079 list_for_each_entry(sdata, &local->interfaces, list) {
2080 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2081 continue;
20f544ee
JB		 2082 if (!sdata->u.mgd.associated)
2083 continue;
6e1b1b24 2084
076cdcb1 2085 ieee80211_send_nullfunc(local, sdata, false);
6e1b1b24
EP		 2086 }
2087 }
2088
2e8d397e 2089 /* APs are now beaconing, add back stations */
48c5d82a
JB		 2090 list_for_each_entry(sdata, &local->interfaces, list) {
2091 if (!ieee80211_sdata_running(sdata))
2e8d397e
AN		 2092 continue;
2093
48c5d82a
JB		 2094 switch (sdata->vif.type) {
2095 case NL80211_IFTYPE_AP_VLAN:
2096 case NL80211_IFTYPE_AP:
2097 ieee80211_reconfig_stations(sdata);
2098 break;
2099 default:
2100 break;
2101 }
2e8d397e 2102 }
2e8d397e 2103
7b21aea0 2104 /* add back keys */
f9dca80b 2105 list_for_each_entry(sdata, &local->interfaces, list)
624ff4b2 2106 ieee80211_reenable_keys(sdata);
7b21aea0 2107
a0b9ecff
JB		 2108 /* re-enable multi-link for client interfaces */
2109 list_for_each_entry(sdata, &local->interfaces, list) {
2110 if (sdata->restart_active_links)
2111 ieee80211_set_active_links(&sdata->vif,
2112 sdata->restart_active_links);
c6d075be
MK		 2113 /*
2114 * If a link switch was scheduled before the restart, and ran
2115 * before reconfig, it will do nothing, so re-schedule.
2116 */
2117 if (sdata->desired_active_links)
2118 wiphy_work_queue(sdata->local->hw.wiphy,
2119 &sdata->activate_links_work);
a0b9ecff
JB		 2120 }
2121
0d440ea2 2122 /* Reconfigure sched scan if it was interrupted by FW restart */
0d440ea2 2123 sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata,
0cd8080e 2124 lockdep_is_held(&local->hw.wiphy->mtx));
0d440ea2 2125 sched_scan_req = rcu_dereference_protected(local->sched_scan_req,
0cd8080e 2126 lockdep_is_held(&local->hw.wiphy->mtx));
0d440ea2
EP		 2127 if (sched_scan_sdata && sched_scan_req)
2128 /*
2129 * Sched scan stopped, but we don't want to report it. Instead,
2130 * we're trying to reschedule. However, if more than one scan
2131 * plan was set, we cannot reschedule since we don't know which
2132 * scan plan was currently running (and some scan plans may have
2133 * already finished).
2134 */
2135 if (sched_scan_req->n_scan_plans > 1 ||
2136 __ieee80211_request_sched_scan_start(sched_scan_sdata,
b9f628fc
EP		 2137 sched_scan_req)) {
2138 RCU_INIT_POINTER(local->sched_scan_sdata, NULL);
2139 RCU_INIT_POINTER(local->sched_scan_req, NULL);
0d440ea2 2140 sched_scan_stopped = true;
b9f628fc 2141 }
0d440ea2
EP		 2142
2143 if (sched_scan_stopped)
a05829a7 2144 cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0);
0d440ea2 2145
c6209488 2146 wake_up:
2a419056
JB		 2147 /*
2148 * Clear the WLAN_STA_BLOCK_BA flag so new aggregation
2149 * sessions can be established after a resume.
2150 *
2151 * Also tear down aggregation sessions since reconfiguring
2152 * them in a hardware restart scenario is not easily done
2153 * right now, and the hardware will have lost information
2154 * about the sessions, but we and the AP still think they
2155 * are active. This is really a workaround though.
2156 */
30686bf7 2157 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) {
2a419056 2158 list_for_each_entry(sta, &local->sta_list, list) {
27392719
EP		 2159 if (!local->resuming)
2160 ieee80211_sta_tear_down_BA_sessions(
2161 sta, AGG_STOP_LOCAL_REQUEST);
c2c98fde 2162 clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
74e2bd1f
WYG		 2163 }
2164 }
74e2bd1f 2165
13dee10b
JB		 2166 /*
2167 * If this is for hw restart things are still running.
2168 * We may want to change that later, however.
2169 */
2170 if (local->open_count && (!suspended || reconfig_due_to_wowlan))
2171 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
2172
2316380f 2173 if (local->in_reconfig) {
7d352ccf 2174 in_reconfig = local->in_reconfig;
2316380f
SS		 2175 local->in_reconfig = false;
2176 barrier();
2177
6322e0e7 2178 ieee80211_reconfig_roc(local);
f8891461
NG		 2179
2180 /* Requeue all works */
20d5a0b9
MK		 2181 list_for_each_entry(sdata, &local->interfaces, list) {
2182 if (ieee80211_sdata_running(sdata))
2183 wiphy_work_queue(local->hw.wiphy, &sdata->work);
2184 }
2316380f
SS		 2185 }
2186
445ea4e8 2187 ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 2188 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
2189 false);
f2753ddb 2190
7d352ccf
YC		 2191 if (in_reconfig) {
2192 list_for_each_entry(sdata, &local->interfaces, list) {
2193 if (!ieee80211_sdata_running(sdata))
2194 continue;
2195 if (sdata->vif.type == NL80211_IFTYPE_STATION)
2196 ieee80211_sta_restart(sdata);
2197 }
2198 }
2199
c07981af
MK		 2200 if (local->virt_monitors > 0 &&
2201 local->virt_monitors == local->open_count)
2202 ieee80211_add_virtual_monitor(local);
2203
b0485e9f 2204 if (!suspended)
5bb644a0
JB		 2205 return 0;
2206
2207#ifdef CONFIG_PM
ceb99fe0 2208 /* first set suspended false, then resuming */
5bb644a0 2209 local->suspended = false;
ceb99fe0
JB		 2210 mb();
2211 local->resuming = false;
5bb644a0 2212
74430f94 2213 ieee80211_flush_completed_scan(local, false);
9120d94e 2214
0f8b8245 2215 if (local->open_count && !reconfig_due_to_wowlan)
cf2c92d8
EP		 2216 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND);
2217
b8360ab8
JB		 2218 list_for_each_entry(sdata, &local->interfaces, list) {
2219 if (!ieee80211_sdata_running(sdata))
2220 continue;
2221 if (sdata->vif.type == NL80211_IFTYPE_STATION)
2222 ieee80211_sta_restart(sdata);
2223 }
2224
26d59535 2225 mod_timer(&local->sta_cleanup, jiffies + 1);
5bb644a0
JB		 2226#else
2227 WARN_ON(1);
2228#endif
d43c6b6e 2229
f2753ddb
JB		 2230 return 0;
2231}
42935eca 2232
7d352ccf 2233static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag)
95acac61
JB		 2234{
2235 struct ieee80211_sub_if_data *sdata;
2236 struct ieee80211_local *local;
2237 struct ieee80211_key *key;
2238
2239 if (WARN_ON(!vif))
2240 return;
2241
2242 sdata = vif_to_sdata(vif);
2243 local = sdata->local;
2244
2a8b665e
JB		 2245 lockdep_assert_wiphy(local->hw.wiphy);
2246
7d352ccf
YC		 2247 if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME &&
2248 !local->resuming))
2249 return;
2250
2251 if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART &&
2252 !local->in_reconfig))
95acac61
JB		 2253 return;
2254
2255 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
2256 return;
2257
7d352ccf 2258 sdata->flags |= flag;
95acac61 2259
95acac61
JB		 2260 list_for_each_entry(key, &sdata->key_list, list)
2261 key->flags |= KEY_FLAG_TAINTED;
95acac61 2262}
7d352ccf
YC		 2263
2264void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif)
2265{
2266 ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART);
2267}
2268EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect);
2269
2270void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
2271{
2272 ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME);
2273}
95acac61
JB		 2274EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect);
2275
e9aac179 2276void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
d8675a63 2277 struct ieee80211_link_data *link)
0f78231b 2278{
04ecd257
JB		 2279 struct ieee80211_local *local = sdata->local;
2280 struct ieee80211_chanctx_conf *chanctx_conf;
2281 struct ieee80211_chanctx *chanctx;
025e6be2 2282
5435af6e 2283 lockdep_assert_wiphy(local->hw.wiphy);
0f78231b 2284
d8675a63 2285 chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf,
5435af6e 2286 lockdep_is_held(&local->hw.wiphy->mtx));
0f78231b 2287
c189a685
AO		 2288 /*
2289 * This function can be called from a work, thus it may be possible
2290 * that the chanctx_conf is removed (due to a disconnection, for
2291 * example).
2292 * So nothing should be done in such case.
2293 */
2294 if (!chanctx_conf)
5435af6e 2295 return;
0f78231b 2296
04ecd257
JB		 2297 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
2298 ieee80211_recalc_smps_chanctx(local, chanctx);
0f78231b 2299}
8e664fb3 2300
0cbf348a
AO		 2301void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2302 int link_id)
21f659bf
EP		 2303{
2304 struct ieee80211_local *local = sdata->local;
2305 struct ieee80211_chanctx_conf *chanctx_conf;
2306 struct ieee80211_chanctx *chanctx;
0cbf348a 2307 int i;
21f659bf 2308
5435af6e 2309 lockdep_assert_wiphy(local->hw.wiphy);
21f659bf 2310
0cbf348a
AO		 2311 for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) {
2312 struct ieee80211_bss_conf *bss_conf;
21f659bf 2313
0cbf348a
AO		 2314 if (link_id >= 0 && link_id != i)
2315 continue;
21f659bf 2316
0cbf348a
AO		 2317 rcu_read_lock();
2318 bss_conf = rcu_dereference(sdata->vif.link_conf[i]);
2319 if (!bss_conf) {
2320 rcu_read_unlock();
2321 continue;
2322 }
2323
2324 chanctx_conf = rcu_dereference_protected(bss_conf->chanctx_conf,
5435af6e 2325 lockdep_is_held(&local->hw.wiphy->mtx));
0cbf348a 2326 /*
5435af6e 2327 * Since we hold the wiphy mutex (checked above)
0cbf348a
AO		 2328 * we can take the chanctx_conf pointer out of the
2329 * RCU critical section, it cannot go away without
2330 * the mutex. Just the way we reached it could - in
2331 * theory - go away, but we don't really care and
2332 * it really shouldn't happen anyway.
2333 */
2334 rcu_read_unlock();
2335
efe9c2bf 2336 if (!chanctx_conf)
5435af6e 2337 return;
0cbf348a
AO		 2338
2339 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx,
2340 conf);
dd7b1bdb 2341 ieee80211_recalc_chanctx_min_def(local, chanctx, NULL, false);
0cbf348a 2342 }
21f659bf
EP		 2343}
2344
8e664fb3
JB		 2345size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset)
2346{
2347 size_t pos = offset;
2348
2349 while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC)
2350 pos += 2 + ies[pos + 1];
2351
2352 return pos;
2353}
615f7b9b 2354
ef96a842 2355u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
42e7aa77
AS		 2356 u16 cap)
2357{
2358 __le16 tmp;
2359
2360 *pos++ = WLAN_EID_HT_CAPABILITY;
2361 *pos++ = sizeof(struct ieee80211_ht_cap);
2362 memset(pos, 0, sizeof(struct ieee80211_ht_cap));
2363
2364 /* capability flags */
2365 tmp = cpu_to_le16(cap);
2366 memcpy(pos, &tmp, sizeof(u16));
2367 pos += sizeof(u16);
2368
2369 /* AMPDU parameters */
ef96a842
BG		 2370 *pos++ = ht_cap->ampdu_factor |
2371 (ht_cap->ampdu_density <<
42e7aa77
AS		 2372 IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
2373
2374 /* MCS set */
ef96a842
BG		 2375 memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs));
2376 pos += sizeof(ht_cap->mcs);
42e7aa77
AS		 2377
2378 /* extended capabilities */
2379 pos += sizeof(__le16);
2380
2381 /* BF capabilities */
2382 pos += sizeof(__le32);
2383
2384 /* antenna selection */
2385 pos += sizeof(u8);
2386
2387 return pos;
2388}
2389
ba0afa2f 2390u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
cc3983d8 2391 u32 cap)
ba0afa2f
MP		 2392{
2393 __le32 tmp;
2394
2395 *pos++ = WLAN_EID_VHT_CAPABILITY;
d4950281
MP		 2396 *pos++ = sizeof(struct ieee80211_vht_cap);
2397 memset(pos, 0, sizeof(struct ieee80211_vht_cap));
ba0afa2f
MP		 2398
2399 /* capability flags */
2400 tmp = cpu_to_le32(cap);
2401 memcpy(pos, &tmp, sizeof(u32));
2402 pos += sizeof(u32);
2403
2404 /* VHT MCS set */
2405 memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs));
2406 pos += sizeof(vht_cap->vht_mcs);
2407
2408 return pos;
2409}
2410
28aa895b 2411/* this may return more than ieee80211_put_he_6ghz_cap() will need */
90233160 2412u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata)
60ad72da
SE		 2413{
2414 const struct ieee80211_sta_he_cap *he_cap;
2415 struct ieee80211_supported_band *sband;
2416 u8 n;
2417
2418 sband = ieee80211_get_sband(sdata);
2419 if (!sband)
2420 return 0;
2421
90233160 2422 he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
60ad72da
SE		 2423 if (!he_cap)
2424 return 0;
2425
2426 n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem);
2427 return 2 + 1 +
2428 sizeof(he_cap->he_cap_elem) + n +
2429 ieee80211_he_ppe_size(he_cap->ppe_thres[0],
2430 he_cap->he_cap_elem.phy_cap_info);
2431}
2432
6239da18
JB		 2433static void
2434ieee80211_get_adjusted_he_cap(const struct ieee80211_conn_settings *conn,
2435 const struct ieee80211_sta_he_cap *he_cap,
2436 struct ieee80211_he_cap_elem *elem)
2437{
06b4c866
JB		 2438 u8 ru_limit, max_ru;
2439
6239da18
JB		 2440 *elem = he_cap->he_cap_elem;
2441
06b4c866
JB		 2442 switch (conn->bw_limit) {
2443 case IEEE80211_CONN_BW_LIMIT_20:
2444 ru_limit = IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242;
2445 break;
2446 case IEEE80211_CONN_BW_LIMIT_40:
2447 ru_limit = IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
2448 break;
2449 case IEEE80211_CONN_BW_LIMIT_80:
2450 ru_limit = IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996;
2451 break;
2452 default:
2453 ru_limit = IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996;
2454 break;
2455 }
2456
2457 max_ru = elem->phy_cap_info[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK;
2458 max_ru = min(max_ru, ru_limit);
2459 elem->phy_cap_info[8] &= ~IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK;
2460 elem->phy_cap_info[8] |= max_ru;
2461
2462 if (conn->bw_limit < IEEE80211_CONN_BW_LIMIT_40) {
6239da18
JB		 2463 elem->phy_cap_info[0] &=
2464 ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2465 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G);
06b4c866
JB		 2466 elem->phy_cap_info[9] &=
2467 ~IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM;
2468 }
6239da18 2469
06b4c866 2470 if (conn->bw_limit < IEEE80211_CONN_BW_LIMIT_160) {
6239da18
JB		 2471 elem->phy_cap_info[0] &=
2472 ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2473 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G);
06b4c866
JB		 2474 elem->phy_cap_info[5] &=
2475 ~IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
2476 elem->phy_cap_info[7] &=
2477 ~(IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ |
2478 IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ);
2479 }
6239da18
JB		 2480}
2481
28aa895b
JB		 2482int ieee80211_put_he_cap(struct sk_buff *skb,
2483 struct ieee80211_sub_if_data *sdata,
2484 const struct ieee80211_supported_band *sband,
2485 const struct ieee80211_conn_settings *conn)
41cbb0f5 2486{
28aa895b 2487 const struct ieee80211_sta_he_cap *he_cap;
1f2c1044 2488 struct ieee80211_he_cap_elem elem;
28aa895b 2489 u8 *len;
41cbb0f5
LC		 2490 u8 n;
2491 u8 ie_len;
41cbb0f5 2492
310c8387
JB		 2493 if (!conn)
2494 conn = &ieee80211_conn_settings_unlimited;
2495
28aa895b 2496 he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
41cbb0f5 2497 if (!he_cap)
28aa895b 2498 return 0;
41cbb0f5 2499
1f2c1044 2500 /* modify on stack first to calculate 'n' and 'ie_len' correctly */
6239da18 2501 ieee80211_get_adjusted_he_cap(conn, he_cap, &elem);
1f2c1044
JB		 2502
2503 n = ieee80211_he_mcs_nss_size(&elem);
41cbb0f5
LC		 2504 ie_len = 2 + 1 +
2505 sizeof(he_cap->he_cap_elem) + n +
2506 ieee80211_he_ppe_size(he_cap->ppe_thres[0],
2507 he_cap->he_cap_elem.phy_cap_info);
2508
28aa895b
JB		 2509 if (skb_tailroom(skb) < ie_len)
2510 return -ENOBUFS;
41cbb0f5 2511
28aa895b
JB		 2512 skb_put_u8(skb, WLAN_EID_EXTENSION);
2513 len = skb_put(skb, 1); /* We'll set the size later below */
2514 skb_put_u8(skb, WLAN_EID_EXT_HE_CAPABILITY);
41cbb0f5
LC		 2515
2516 /* Fixed data */
28aa895b 2517 skb_put_data(skb, &elem, sizeof(elem));
41cbb0f5 2518
28aa895b 2519 skb_put_data(skb, &he_cap->he_mcs_nss_supp, n);
41cbb0f5
LC		 2520
2521 /* Check if PPE Threshold should be present */
2522 if ((he_cap->he_cap_elem.phy_cap_info[6] &
2523 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
2524 goto end;
2525
2526 /*
2527 * Calculate how many PPET16/PPET8 pairs are to come. Algorithm:
2528 * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK)
2529 */
2530 n = hweight8(he_cap->ppe_thres[0] &
2531 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2532 n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >>
2533 IEEE80211_PPE_THRES_NSS_POS));
2534
2535 /*
2536 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
2537 * total size.
2538 */
2539 n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
2540 n = DIV_ROUND_UP(n, 8);
2541
2542 /* Copy PPE Thresholds */
28aa895b 2543 skb_put_data(skb, &he_cap->ppe_thres, n);
41cbb0f5
LC		 2544
2545end:
28aa895b
JB		 2546 *len = skb_tail_pointer(skb) - len - 1;
2547 return 0;
41cbb0f5
LC		 2548}
2549
07095d16
JB		 2550int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2551 struct ieee80211_sub_if_data *sdata,
2552 enum ieee80211_smps_mode smps_mode)
24a2042c
RM		 2553{
2554 struct ieee80211_supported_band *sband;
2555 const struct ieee80211_sband_iftype_data *iftd;
2556 enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
07095d16 2557 __le16 cap;
24a2042c 2558
65be6aa3
JB		 2559 if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy,
2560 BIT(NL80211_BAND_6GHZ),
2561 IEEE80211_CHAN_NO_HE))
07095d16 2562 return 0;
24a2042c 2563
65be6aa3
JB		 2564 sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ];
2565
24a2042c 2566 iftd = ieee80211_get_sband_iftype_data(sband, iftype);
65be6aa3 2567 if (!iftd)
07095d16 2568 return 0;
24a2042c 2569
65ad3ef9
RM		 2570 /* Check for device HE 6 GHz capability before adding element */
2571 if (!iftd->he_6ghz_capa.capa)
07095d16 2572 return 0;
65ad3ef9 2573
07095d16
JB		 2574 cap = iftd->he_6ghz_capa.capa;
2575 cap &= cpu_to_le16(~IEEE80211_HE_6GHZ_CAP_SM_PS);
24a2042c 2576
abd27d06 2577 switch (smps_mode) {
24a2042c
RM		 2578 case IEEE80211_SMPS_AUTOMATIC:
2579 case IEEE80211_SMPS_NUM_MODES:
2580 WARN_ON(1);
fc0561dc 2581 fallthrough;
24a2042c 2582 case IEEE80211_SMPS_OFF:
07095d16
JB		 2583 cap |= le16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED,
2584 IEEE80211_HE_6GHZ_CAP_SM_PS);
24a2042c
RM		 2585 break;
2586 case IEEE80211_SMPS_STATIC:
07095d16
JB		 2587 cap |= le16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC,
2588 IEEE80211_HE_6GHZ_CAP_SM_PS);
24a2042c
RM		 2589 break;
2590 case IEEE80211_SMPS_DYNAMIC:
07095d16
JB		 2591 cap |= le16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC,
2592 IEEE80211_HE_6GHZ_CAP_SM_PS);
24a2042c
RM		 2593 break;
2594 }
2595
07095d16
JB		 2596 if (skb_tailroom(skb) < 2 + 1 + sizeof(cap))
2597 return -ENOBUFS;
2598
2599 skb_put_u8(skb, WLAN_EID_EXTENSION);
2600 skb_put_u8(skb, 1 + sizeof(cap));
2601 skb_put_u8(skb, WLAN_EID_EXT_HE_6GHZ_CAPA);
2602 skb_put_data(skb, &cap, sizeof(cap));
2603 return 0;
24a2042c
RM		 2604}
2605
074d46d1 2606u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
4bf88530 2607 const struct cfg80211_chan_def *chandef,
57f255f5 2608 u16 prot_mode, bool rifs_mode)
42e7aa77 2609{
074d46d1 2610 struct ieee80211_ht_operation *ht_oper;
42e7aa77 2611 /* Build HT Information */
074d46d1
JB		 2612 *pos++ = WLAN_EID_HT_OPERATION;
2613 *pos++ = sizeof(struct ieee80211_ht_operation);
2614 ht_oper = (struct ieee80211_ht_operation *)pos;
4bf88530
JB		 2615 ht_oper->primary_chan = ieee80211_frequency_to_channel(
2616 chandef->chan->center_freq);
2617 switch (chandef->width) {
2618 case NL80211_CHAN_WIDTH_160:
2619 case NL80211_CHAN_WIDTH_80P80:
2620 case NL80211_CHAN_WIDTH_80:
2621 case NL80211_CHAN_WIDTH_40:
2622 if (chandef->center_freq1 > chandef->chan->center_freq)
2623 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2624 else
2625 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
42e7aa77 2626 break;
5dca295d
IP		 2627 case NL80211_CHAN_WIDTH_320:
2628 /* HT information element should not be included on 6GHz */
2629 WARN_ON(1);
2630 return pos;
42e7aa77 2631 default:
074d46d1 2632 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
42e7aa77
AS		 2633 break;
2634 }
aee286c2 2635 if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
4bf88530
JB		 2636 chandef->width != NL80211_CHAN_WIDTH_20_NOHT &&
2637 chandef->width != NL80211_CHAN_WIDTH_20)
074d46d1 2638 ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
ff3cc5f4 2639
57f255f5
AN		 2640 if (rifs_mode)
2641 ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE;
2642
431e3154 2643 ht_oper->operation_mode = cpu_to_le16(prot_mode);
074d46d1 2644 ht_oper->stbc_param = 0x0000;
42e7aa77
AS		 2645
2646 /* It seems that Basic MCS set and Supported MCS set
2647 are identical for the first 10 bytes */
074d46d1
JB		 2648 memset(&ht_oper->basic_set, 0, 16);
2649 memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10);
42e7aa77 2650
074d46d1 2651 return pos + sizeof(struct ieee80211_ht_operation);
42e7aa77
AS		 2652}
2653
75d627d5
SW		 2654void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2655 const struct cfg80211_chan_def *chandef)
2656{
2657 *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */
2658 *pos++ = 3; /* IE length */
2659 /* New channel width */
2660 switch (chandef->width) {
2661 case NL80211_CHAN_WIDTH_80:
2662 *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ;
2663 break;
2664 case NL80211_CHAN_WIDTH_160:
2665 *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ;
2666 break;
2667 case NL80211_CHAN_WIDTH_80P80:
2668 *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
2669 break;
5dca295d
IP		 2670 case NL80211_CHAN_WIDTH_320:
2671 /* The behavior is not defined for 320 MHz channels */
2672 WARN_ON(1);
2673 fallthrough;
75d627d5
SW		 2674 default:
2675 *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT;
2676 }
2677
2678 /* new center frequency segment 0 */
2679 *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1);
2680 /* new center frequency segment 1 */
2681 if (chandef->center_freq2)
2682 *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2);
2683 else
2684 *pos++ = 0;
2685}
2686
fb28ec0c
AN		 2687u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2688 const struct cfg80211_chan_def *chandef)
2689{
2690 struct ieee80211_vht_operation *vht_oper;
2691
2692 *pos++ = WLAN_EID_VHT_OPERATION;
2693 *pos++ = sizeof(struct ieee80211_vht_operation);
2694 vht_oper = (struct ieee80211_vht_operation *)pos;
2fb51c35 2695 vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel(
fb28ec0c
AN		 2696 chandef->center_freq1);
2697 if (chandef->center_freq2)
2fb51c35 2698 vht_oper->center_freq_seg1_idx =
fb28ec0c 2699 ieee80211_frequency_to_channel(chandef->center_freq2);
f020ae40 2700 else
2fb51c35 2701 vht_oper->center_freq_seg1_idx = 0x00;
fb28ec0c
AN		 2702
2703 switch (chandef->width) {
2704 case NL80211_CHAN_WIDTH_160:
23665aaf
JM		 2705 /*
2706 * Convert 160 MHz channel width to new style as interop
2707 * workaround.
2708 */
2709 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
2fb51c35 2710 vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx;
23665aaf 2711 if (chandef->chan->center_freq < chandef->center_freq1)
2fb51c35 2712 vht_oper->center_freq_seg0_idx -= 8;
23665aaf 2713 else
2fb51c35 2714 vht_oper->center_freq_seg0_idx += 8;
fb28ec0c
AN		 2715 break;
2716 case NL80211_CHAN_WIDTH_80P80:
23665aaf
JM		 2717 /*
2718 * Convert 80+80 MHz channel width to new style as interop
2719 * workaround.
2720 */
2721 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
fb28ec0c
AN		 2722 break;
2723 case NL80211_CHAN_WIDTH_80:
2724 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
2725 break;
5dca295d
IP		 2726 case NL80211_CHAN_WIDTH_320:
2727 /* VHT information element should not be included on 6GHz */
2728 WARN_ON(1);
2729 return pos;
fb28ec0c
AN		 2730 default:
2731 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
2732 break;
2733 }
2734
2735 /* don't require special VHT peer rates */
2736 vht_oper->basic_mcs_set = cpu_to_le16(0xffff);
2737
2738 return pos + sizeof(struct ieee80211_vht_operation);
2739}
2740
2b73e9ab 2741u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef)
60ad72da
SE		 2742{
2743 struct ieee80211_he_operation *he_oper;
d1b7524b 2744 struct ieee80211_he_6ghz_oper *he_6ghz_op;
b63a95d3 2745 struct cfg80211_chan_def he_chandef;
60ad72da 2746 u32 he_oper_params;
d1b7524b
RM		 2747 u8 ie_len = 1 + sizeof(struct ieee80211_he_operation);
2748
2749 if (chandef->chan->band == NL80211_BAND_6GHZ)
2750 ie_len += sizeof(struct ieee80211_he_6ghz_oper);
60ad72da
SE		 2751
2752 *pos++ = WLAN_EID_EXTENSION;
d1b7524b 2753 *pos++ = ie_len;
60ad72da
SE		 2754 *pos++ = WLAN_EID_EXT_HE_OPERATION;
2755
2756 he_oper_params = 0;
2757 he_oper_params |= u32_encode_bits(1023, /* disabled */
2758 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
2759 he_oper_params |= u32_encode_bits(1,
2760 IEEE80211_HE_OPERATION_ER_SU_DISABLE);
2761 he_oper_params |= u32_encode_bits(1,
2762 IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED);
d1b7524b
RM		 2763 if (chandef->chan->band == NL80211_BAND_6GHZ)
2764 he_oper_params |= u32_encode_bits(1,
2765 IEEE80211_HE_OPERATION_6GHZ_OP_INFO);
60ad72da
SE		 2766
2767 he_oper = (struct ieee80211_he_operation *)pos;
2768 he_oper->he_oper_params = cpu_to_le32(he_oper_params);
2769
2770 /* don't require special HE peer rates */
2771 he_oper->he_mcs_nss_set = cpu_to_le16(0xffff);
d1b7524b 2772 pos += sizeof(struct ieee80211_he_operation);
60ad72da 2773
d1b7524b
RM		 2774 if (chandef->chan->band != NL80211_BAND_6GHZ)
2775 goto out;
60ad72da 2776
b63a95d3
SM		 2777 cfg80211_chandef_create(&he_chandef, chandef->chan, NL80211_CHAN_NO_HT);
2778 he_chandef.center_freq1 = chandef->center_freq1;
2779 he_chandef.center_freq2 = chandef->center_freq2;
2780 he_chandef.width = chandef->width;
2781
d1b7524b
RM		 2782 /* TODO add VHT operational */
2783 he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos;
2784 he_6ghz_op->minrate = 6; /* 6 Mbps */
2785 he_6ghz_op->primary =
b63a95d3 2786 ieee80211_frequency_to_channel(he_chandef.chan->center_freq);
d1b7524b 2787 he_6ghz_op->ccfs0 =
b63a95d3
SM		 2788 ieee80211_frequency_to_channel(he_chandef.center_freq1);
2789 if (he_chandef.center_freq2)
d1b7524b 2790 he_6ghz_op->ccfs1 =
b63a95d3 2791 ieee80211_frequency_to_channel(he_chandef.center_freq2);
d1b7524b
RM		 2792 else
2793 he_6ghz_op->ccfs1 = 0;
2794
b63a95d3 2795 switch (he_chandef.width) {
5dca295d 2796 case NL80211_CHAN_WIDTH_320:
b63a95d3
SM		 2797 /* Downgrade EHT 320 MHz BW to 160 MHz for HE and set new
2798 * center_freq1
5dca295d 2799 */
b63a95d3
SM		 2800 ieee80211_chandef_downgrade(&he_chandef, NULL);
2801 he_6ghz_op->ccfs0 =
2802 ieee80211_frequency_to_channel(he_chandef.center_freq1);
2803 fallthrough;
d1b7524b
RM		 2804 case NL80211_CHAN_WIDTH_160:
2805 /* Convert 160 MHz channel width to new style as interop
2806 * workaround.
2807 */
2808 he_6ghz_op->control =
2809 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ;
2810 he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0;
b63a95d3 2811 if (he_chandef.chan->center_freq < he_chandef.center_freq1)
d1b7524b
RM		 2812 he_6ghz_op->ccfs0 -= 8;
2813 else
2814 he_6ghz_op->ccfs0 += 8;
2815 fallthrough;
2816 case NL80211_CHAN_WIDTH_80P80:
2817 he_6ghz_op->control =
2818 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ;
2819 break;
2820 case NL80211_CHAN_WIDTH_80:
2821 he_6ghz_op->control =
2822 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ;
2823 break;
2824 case NL80211_CHAN_WIDTH_40:
2825 he_6ghz_op->control =
2826 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ;
2827 break;
2828 default:
2829 he_6ghz_op->control =
2830 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ;
2831 break;
2832 }
2833
2834 pos += sizeof(struct ieee80211_he_6ghz_oper);
2835
2836out:
2837 return pos;
60ad72da
SE		 2838}
2839
2b73e9ab 2840u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef,
df1875c4
RL		 2841 const struct ieee80211_sta_eht_cap *eht_cap)
2842
2843{
2844 const struct ieee80211_eht_mcs_nss_supp_20mhz_only *eht_mcs_nss =
2845 &eht_cap->eht_mcs_nss_supp.only_20mhz;
2846 struct ieee80211_eht_operation *eht_oper;
2847 struct ieee80211_eht_operation_info *eht_oper_info;
2848 u8 eht_oper_len = offsetof(struct ieee80211_eht_operation, optional);
2849 u8 eht_oper_info_len =
2850 offsetof(struct ieee80211_eht_operation_info, optional);
2851 u8 chan_width = 0;
2852
2853 *pos++ = WLAN_EID_EXTENSION;
2854 *pos++ = 1 + eht_oper_len + eht_oper_info_len;
2855 *pos++ = WLAN_EID_EXT_EHT_OPERATION;
2856
2857 eht_oper = (struct ieee80211_eht_operation *)pos;
2858
2859 memcpy(&eht_oper->basic_mcs_nss, eht_mcs_nss, sizeof(*eht_mcs_nss));
2860 eht_oper->params |= IEEE80211_EHT_OPER_INFO_PRESENT;
2861 pos += eht_oper_len;
2862
2863 eht_oper_info =
2864 (struct ieee80211_eht_operation_info *)eht_oper->optional;
2865
2866 eht_oper_info->ccfs0 =
2867 ieee80211_frequency_to_channel(chandef->center_freq1);
2868 if (chandef->center_freq2)
2869 eht_oper_info->ccfs1 =
2870 ieee80211_frequency_to_channel(chandef->center_freq2);
2871 else
2872 eht_oper_info->ccfs1 = 0;
2873
2874 switch (chandef->width) {
2875 case NL80211_CHAN_WIDTH_320:
2876 chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ;
2877 eht_oper_info->ccfs1 = eht_oper_info->ccfs0;
2878 if (chandef->chan->center_freq < chandef->center_freq1)
2879 eht_oper_info->ccfs0 -= 16;
2880 else
2881 eht_oper_info->ccfs0 += 16;
2882 break;
2883 case NL80211_CHAN_WIDTH_160:
2884 eht_oper_info->ccfs1 = eht_oper_info->ccfs0;
2885 if (chandef->chan->center_freq < chandef->center_freq1)
2886 eht_oper_info->ccfs0 -= 8;
2887 else
2888 eht_oper_info->ccfs0 += 8;
2889 fallthrough;
2890 case NL80211_CHAN_WIDTH_80P80:
2891 chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ;
2892 break;
2893 case NL80211_CHAN_WIDTH_80:
2894 chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ;
2895 break;
2896 case NL80211_CHAN_WIDTH_40:
2897 chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ;
2898 break;
2899 default:
2900 chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ;
2901 break;
2902 }
2903 eht_oper_info->control = chan_width;
2904 pos += eht_oper_info_len;
2905
2906 /* TODO: eht_oper_info->optional */
2907
2908 return pos;
2909}
2910
8ac3c704
JB		 2911bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2912 struct cfg80211_chan_def *chandef)
42e7aa77
AS		 2913{
2914 enum nl80211_channel_type channel_type;
2915
8ac3c704
JB		 2916 if (!ht_oper)
2917 return false;
42e7aa77 2918
074d46d1 2919 switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
42e7aa77
AS		 2920 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
2921 channel_type = NL80211_CHAN_HT20;
2922 break;
2923 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
2924 channel_type = NL80211_CHAN_HT40PLUS;
2925 break;
2926 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
2927 channel_type = NL80211_CHAN_HT40MINUS;
2928 break;
2929 default:
8ac3c704 2930 return false;
42e7aa77
AS		 2931 }
2932
8ac3c704
JB		 2933 cfg80211_chandef_create(chandef, chandef->chan, channel_type);
2934 return true;
42e7aa77
AS		 2935}
2936
2a333a0d 2937bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
7eb26df2
JB		 2938 const struct ieee80211_vht_operation *oper,
2939 const struct ieee80211_ht_operation *htop,
8ac3c704 2940 struct cfg80211_chan_def *chandef)
abcff6ef 2941{
8ac3c704 2942 struct cfg80211_chan_def new = *chandef;
7eb26df2
JB		 2943 int cf0, cf1;
2944 int ccfs0, ccfs1, ccfs2;
2945 int ccf0, ccf1;
33181ea7
SB		 2946 u32 vht_cap;
2947 bool support_80_80 = false;
2948 bool support_160 = false;
2a333a0d
JB		 2949 u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info,
2950 IEEE80211_VHT_CAP_EXT_NSS_BW_MASK);
2951 u8 supp_chwidth = u32_get_bits(vht_cap_info,
2952 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK);
8ac3c704 2953
7eb26df2 2954 if (!oper || !htop)
8ac3c704 2955 return false;
abcff6ef 2956
33181ea7
SB		 2957 vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap;
2958 support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK |
2959 IEEE80211_VHT_CAP_EXT_NSS_BW_MASK));
2960 support_80_80 = ((vht_cap &
2961 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) ||
2962 (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ &&
2963 vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) ||
2964 ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >>
2965 IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1));
7eb26df2
JB		 2966 ccfs0 = oper->center_freq_seg0_idx;
2967 ccfs1 = oper->center_freq_seg1_idx;
2968 ccfs2 = (le16_to_cpu(htop->operation_mode) &
2969 IEEE80211_HT_OP_MODE_CCFS2_MASK)
2970 >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT;
2971
7eb26df2 2972 ccf0 = ccfs0;
2a333a0d
JB		 2973
2974 /* if not supported, parse as though we didn't understand it */
2975 if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW))
2976 ext_nss_bw_supp = 0;
2977
2978 /*
2979 * Cf. IEEE 802.11 Table 9-250
2980 *
2981 * We really just consider that because it's inefficient to connect
2982 * at a higher bandwidth than we'll actually be able to use.
2983 */
2984 switch ((supp_chwidth << 4) | ext_nss_bw_supp) {
2985 default:
2986 case 0x00:
2987 ccf1 = 0;
2988 support_160 = false;
2989 support_80_80 = false;
2990 break;
2991 case 0x01:
2992 support_80_80 = false;
fc0561dc 2993 fallthrough;
2a333a0d
JB		 2994 case 0x02:
2995 case 0x03:
7eb26df2 2996 ccf1 = ccfs2;
2a333a0d
JB		 2997 break;
2998 case 0x10:
2999 ccf1 = ccfs1;
3000 break;
3001 case 0x11:
3002 case 0x12:
3003 if (!ccfs1)
3004 ccf1 = ccfs2;
3005 else
3006 ccf1 = ccfs1;
3007 break;
3008 case 0x13:
3009 case 0x20:
3010 case 0x23:
3011 ccf1 = ccfs1;
3012 break;
3013 }
7eb26df2
JB		 3014
3015 cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band);
3016 cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band);
abcff6ef
JD		 3017
3018 switch (oper->chan_width) {
3019 case IEEE80211_VHT_CHANWIDTH_USE_HT:
7eb26df2 3020 /* just use HT information directly */
abcff6ef
JD		 3021 break;
3022 case IEEE80211_VHT_CHANWIDTH_80MHZ:
8ac3c704 3023 new.width = NL80211_CHAN_WIDTH_80;
7eb26df2 3024 new.center_freq1 = cf0;
23665aaf 3025 /* If needed, adjust based on the newer interop workaround. */
7eb26df2 3026 if (ccf1) {
23665aaf
JM		 3027 unsigned int diff;
3028
7eb26df2 3029 diff = abs(ccf1 - ccf0);
33181ea7 3030 if ((diff == 8) && support_160) {
23665aaf 3031 new.width = NL80211_CHAN_WIDTH_160;
7eb26df2 3032 new.center_freq1 = cf1;
33181ea7 3033 } else if ((diff > 8) && support_80_80) {
23665aaf 3034 new.width = NL80211_CHAN_WIDTH_80P80;
7eb26df2 3035 new.center_freq2 = cf1;
23665aaf
JM		 3036 }
3037 }
abcff6ef
JD		 3038 break;
3039 case IEEE80211_VHT_CHANWIDTH_160MHZ:
7eb26df2 3040 /* deprecated encoding */
8ac3c704 3041 new.width = NL80211_CHAN_WIDTH_160;
7eb26df2 3042 new.center_freq1 = cf0;
abcff6ef
JD		 3043 break;
3044 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
7eb26df2 3045 /* deprecated encoding */
8ac3c704 3046 new.width = NL80211_CHAN_WIDTH_80P80;
7eb26df2
JB		 3047 new.center_freq1 = cf0;
3048 new.center_freq2 = cf1;
abcff6ef
JD		 3049 break;
3050 default:
8ac3c704 3051 return false;
abcff6ef
JD		 3052 }
3053
8ac3c704
JB		 3054 if (!cfg80211_chandef_valid(&new))
3055 return false;
3056
3057 *chandef = new;
3058 return true;
abcff6ef
JD		 3059}
3060
b3239498 3061void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
1e0b3b0b
IP		 3062 struct cfg80211_chan_def *chandef)
3063{
1e0b3b0b
IP		 3064 chandef->center_freq1 =
3065 ieee80211_channel_to_frequency(info->ccfs0,
3066 chandef->chan->band);
3067
3068 switch (u8_get_bits(info->control,
3069 IEEE80211_EHT_OPER_CHAN_WIDTH)) {
3070 case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ:
3071 chandef->width = NL80211_CHAN_WIDTH_20;
3072 break;
3073 case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ:
3074 chandef->width = NL80211_CHAN_WIDTH_40;
3075 break;
3076 case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ:
3077 chandef->width = NL80211_CHAN_WIDTH_80;
3078 break;
3079 case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ:
2d9698dd
JB		 3080 chandef->width = NL80211_CHAN_WIDTH_160;
3081 chandef->center_freq1 =
3082 ieee80211_channel_to_frequency(info->ccfs1,
3083 chandef->chan->band);
1e0b3b0b
IP		 3084 break;
3085 case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ:
2d9698dd
JB		 3086 chandef->width = NL80211_CHAN_WIDTH_320;
3087 chandef->center_freq1 =
3088 ieee80211_channel_to_frequency(info->ccfs1,
3089 chandef->chan->band);
1e0b3b0b
IP		 3090 break;
3091 }
3092}
3093
2d9698dd 3094bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
57fa5e85 3095 const struct ieee80211_he_operation *he_oper,
5dca295d 3096 const struct ieee80211_eht_operation *eht_oper,
57fa5e85
JB		 3097 struct cfg80211_chan_def *chandef)
3098{
57fa5e85
JB		 3099 struct cfg80211_chan_def he_chandef = *chandef;
3100 const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
57fa5e85
JB		 3101 u32 freq;
3102
3103 if (chandef->chan->band != NL80211_BAND_6GHZ)
3104 return true;
3105
2d9698dd 3106 if (!he_oper)
57fa5e85 3107 return false;
5dca295d 3108
57fa5e85 3109 he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
bc8a0fac 3110 if (!he_6ghz_oper)
57fa5e85 3111 return false;
57fa5e85 3112
5dca295d
IP		 3113 /*
3114 * The EHT operation IE does not contain the primary channel so the
3115 * primary channel frequency should be taken from the 6 GHz operation
3116 * information.
3117 */
57fa5e85
JB		 3118 freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary,
3119 NL80211_BAND_6GHZ);
2d9698dd
JB		 3120 he_chandef.chan = ieee80211_get_channel(local->hw.wiphy, freq);
3121
3122 if (!he_chandef.chan)
3123 return false;
57fa5e85 3124
1e0b3b0b
IP		 3125 if (!eht_oper ||
3126 !(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) {
5dca295d
IP		 3127 switch (u8_get_bits(he_6ghz_oper->control,
3128 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
3129 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
3130 he_chandef.width = NL80211_CHAN_WIDTH_20;
3131 break;
3132 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
3133 he_chandef.width = NL80211_CHAN_WIDTH_40;
3134 break;
3135 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
3136 he_chandef.width = NL80211_CHAN_WIDTH_80;
3137 break;
3138 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
3139 he_chandef.width = NL80211_CHAN_WIDTH_80;
3140 if (!he_6ghz_oper->ccfs1)
3141 break;
2d9698dd
JB		 3142 if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8)
3143 he_chandef.width = NL80211_CHAN_WIDTH_160;
3144 else
3145 he_chandef.width = NL80211_CHAN_WIDTH_80P80;
5dca295d
IP		 3146 break;
3147 }
3148
3149 if (he_chandef.width == NL80211_CHAN_WIDTH_160) {
3150 he_chandef.center_freq1 =
3151 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
3152 NL80211_BAND_6GHZ);
3153 } else {
3154 he_chandef.center_freq1 =
3155 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0,
3156 NL80211_BAND_6GHZ);
2d9698dd
JB		 3157 he_chandef.center_freq2 =
3158 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
3159 NL80211_BAND_6GHZ);
5dca295d
IP		 3160 }
3161 } else {
b3239498 3162 ieee80211_chandef_eht_oper((const void *)eht_oper->optional,
b3239498 3163 &he_chandef);
b919099e
KY		 3164 he_chandef.punctured =
3165 ieee80211_eht_oper_dis_subchan_bitmap(eht_oper);
57fa5e85
JB		 3166 }
3167
2d9698dd 3168 if (!cfg80211_chandef_valid(&he_chandef))
57fa5e85 3169 return false;
57fa5e85
JB		 3170
3171 *chandef = he_chandef;
3172
8fca2b87 3173 return true;
1d00ce80
TP		 3174}
3175
3176bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
3177 struct cfg80211_chan_def *chandef)
3178{
3179 u32 oper_freq;
3180
3181 if (!oper)
3182 return false;
3183
3184 switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) {
3185 case IEEE80211_S1G_CHANWIDTH_1MHZ:
3186 chandef->width = NL80211_CHAN_WIDTH_1;
3187 break;
3188 case IEEE80211_S1G_CHANWIDTH_2MHZ:
3189 chandef->width = NL80211_CHAN_WIDTH_2;
3190 break;
3191 case IEEE80211_S1G_CHANWIDTH_4MHZ:
3192 chandef->width = NL80211_CHAN_WIDTH_4;
3193 break;
3194 case IEEE80211_S1G_CHANWIDTH_8MHZ:
3195 chandef->width = NL80211_CHAN_WIDTH_8;
3196 break;
3197 case IEEE80211_S1G_CHANWIDTH_16MHZ:
3198 chandef->width = NL80211_CHAN_WIDTH_16;
3199 break;
3200 default:
3201 return false;
3202 }
3203
3204 oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch,
3205 NL80211_BAND_S1GHZ);
3206 chandef->center_freq1 = KHZ_TO_MHZ(oper_freq);
3207 chandef->freq1_offset = oper_freq % 1000;
3208
57fa5e85
JB		 3209 return true;
3210}
3211
147ceae2
JB		 3212int ieee80211_put_srates_elem(struct sk_buff *skb,
3213 const struct ieee80211_supported_band *sband,
996c15bd 3214 u32 basic_rates, u32 masked_rates,
147ceae2 3215 u8 element_id)
768db343 3216{
147ceae2 3217 u8 i, rates, skip;
768db343 3218
2103dec1
SW		 3219 rates = 0;
3220 for (i = 0; i < sband->n_bitrates; i++) {
147ceae2
JB		 3221 if (masked_rates & BIT(i))
3222 continue;
2103dec1
SW		 3223 rates++;
3224 }
768db343 3225
147ceae2
JB		 3226 if (element_id == WLAN_EID_SUPP_RATES) {
3227 rates = min_t(u8, rates, 8);
3228 skip = 0;
3229 } else {
3230 skip = 8;
3231 if (rates <= skip)
3232 return 0;
3233 rates -= skip;
768db343
AN		 3234 }
3235
147ceae2
JB		 3236 if (skb_tailroom(skb) < rates + 2)
3237 return -ENOBUFS;
768db343 3238
147ceae2
JB		 3239 skb_put_u8(skb, element_id);
3240 skb_put_u8(skb, rates);
3241
3242 for (i = 0; i < sband->n_bitrates && rates; i++) {
3243 int rate;
3244 u8 basic;
2103dec1 3245
147ceae2
JB		 3246 if (masked_rates & BIT(i))
3247 continue;
2103dec1 3248
147ceae2
JB		 3249 if (skip > 0) {
3250 skip--;
3251 continue;
3252 }
768db343 3253
147ceae2 3254 basic = basic_rates & BIT(i) ? 0x80 : 0;
768db343 3255
147ceae2
JB		 3256 rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 5);
3257 skb_put_u8(skb, basic | (u8)rate);
3258 rates--;
768db343 3259 }
147ceae2
JB		 3260
3261 WARN(rates > 0, "rates confused: rates:%d, element:%d\n",
3262 rates, element_id);
3263
768db343
AN		 3264 return 0;
3265}
1dae27f8
WYG		 3266
3267int ieee80211_ave_rssi(struct ieee80211_vif *vif)
3268{
3269 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
1dae27f8 3270
bfd8403a 3271 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
be6bcabc 3272 return 0;
bfd8403a
JB		 3273
3274 return -ewma_beacon_signal_read(&sdata->deflink.u.mgd.ave_beacon_signal);
1dae27f8 3275}
0d8a0a17 3276EXPORT_SYMBOL_GPL(ieee80211_ave_rssi);
04ecd257
JB		 3277
3278u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs)
3279{
3280 if (!mcs)
3281 return 1;
3282
3283 /* TODO: consider rx_highest */
3284
3285 if (mcs->rx_mask[3])
3286 return 4;
3287 if (mcs->rx_mask[2])
3288 return 3;
3289 if (mcs->rx_mask[1])
3290 return 2;
3291 return 1;
3292}
f4bda337
TP		 3293
3294/**
3295 * ieee80211_calculate_rx_timestamp - calculate timestamp in frame
3296 * @local: mac80211 hw info struct
3297 * @status: RX status
3298 * @mpdu_len: total MPDU length (including FCS)
3299 * @mpdu_offset: offset into MPDU to calculate timestamp at
3300 *
3301 * This function calculates the RX timestamp at the given MPDU offset, taking
3302 * into account what the RX timestamp was. An offset of 0 will just normalize
3303 * the timestamp to TSF at beginning of MPDU reception.
cef71047
JB		 3304 *
3305 * Returns: the calculated timestamp
f4bda337
TP		 3306 */
3307u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
3308 struct ieee80211_rx_status *status,
3309 unsigned int mpdu_len,
3310 unsigned int mpdu_offset)
3311{
3312 u64 ts = status->mactime;
d5b6f6d5 3313 bool mactime_plcp_start;
f4bda337
TP		 3314 struct rate_info ri;
3315 u16 rate;
da388233 3316 u8 n_ltf;
f4bda337
TP		 3317
3318 if (WARN_ON(!ieee80211_have_rx_timestamp(status)))
3319 return 0;
3320
d5b6f6d5
JB		 3321 mactime_plcp_start = (status->flag & RX_FLAG_MACTIME) ==
3322 RX_FLAG_MACTIME_PLCP_START;
3323
f4bda337
TP		 3324 memset(&ri, 0, sizeof(ri));
3325
35f4962c
JB		 3326 ri.bw = status->bw;
3327
f4bda337 3328 /* Fill cfg80211 rate info */
da6a4352 3329 switch (status->encoding) {
f66c48af
JB		 3330 case RX_ENC_EHT:
3331 ri.flags |= RATE_INFO_FLAGS_EHT_MCS;
3332 ri.mcs = status->rate_idx;
3333 ri.nss = status->nss;
3334 ri.eht_ru_alloc = status->eht.ru;
3335 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
3336 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
3337 /* TODO/FIXME: is this right? handle other PPDUs */
d5b6f6d5 3338 if (mactime_plcp_start) {
f66c48af
JB		 3339 mpdu_offset += 2;
3340 ts += 36;
3341 }
3342 break;
da388233
AS		 3343 case RX_ENC_HE:
3344 ri.flags |= RATE_INFO_FLAGS_HE_MCS;
3345 ri.mcs = status->rate_idx;
3346 ri.nss = status->nss;
3347 ri.he_ru_alloc = status->he_ru;
3348 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
3349 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
3350
3351 /*
3352 * See P802.11ax_D6.0, section 27.3.4 for
3353 * VHT PPDU format.
3354 */
d5b6f6d5 3355 if (mactime_plcp_start) {
da388233
AS		 3356 mpdu_offset += 2;
3357 ts += 36;
3358
3359 /*
3360 * TODO:
3361 * For HE MU PPDU, add the HE-SIG-B.
3362 * For HE ER PPDU, add 8us for the HE-SIG-A.
3363 * For HE TB PPDU, add 4us for the HE-STF.
3364 * Add the HE-LTF durations - variable.
3365 */
3366 }
3367
3368 break;
da6a4352 3369 case RX_ENC_HT:
f4bda337
TP		 3370 ri.mcs = status->rate_idx;
3371 ri.flags |= RATE_INFO_FLAGS_MCS;
7fdd69c5 3372 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
f4bda337 3373 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
da388233
AS		 3374
3375 /*
3376 * See P802.11REVmd_D3.0, section 19.3.2 for
3377 * HT PPDU format.
3378 */
d5b6f6d5 3379 if (mactime_plcp_start) {
da388233
AS		 3380 mpdu_offset += 2;
3381 if (status->enc_flags & RX_ENC_FLAG_HT_GF)
3382 ts += 24;
3383 else
3384 ts += 32;
3385
3386 /*
3387 * Add Data HT-LTFs per streams
3388 * TODO: add Extension HT-LTFs, 4us per LTF
3389 */
3390 n_ltf = ((ri.mcs >> 3) & 3) + 1;
3391 n_ltf = n_ltf == 3 ? 4 : n_ltf;
3392 ts += n_ltf * 4;
3393 }
3394
da6a4352
JB		 3395 break;
3396 case RX_ENC_VHT:
5614618e
JB		 3397 ri.flags |= RATE_INFO_FLAGS_VHT_MCS;
3398 ri.mcs = status->rate_idx;
8613c948 3399 ri.nss = status->nss;
7fdd69c5 3400 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
5614618e 3401 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
da388233
AS		 3402
3403 /*
3404 * See P802.11REVmd_D3.0, section 21.3.2 for
3405 * VHT PPDU format.
3406 */
d5b6f6d5 3407 if (mactime_plcp_start) {
da388233
AS		 3408 mpdu_offset += 2;
3409 ts += 36;
3410
3411 /*
3412 * Add VHT-LTFs per streams
3413 */
3414 n_ltf = (ri.nss != 1) && (ri.nss % 2) ?
3415 ri.nss + 1 : ri.nss;
3416 ts += 4 * n_ltf;
3417 }
3418
da6a4352
JB		 3419 break;
3420 default:
3421 WARN_ON(1);
fc0561dc 3422 fallthrough;
da6a4352 3423 case RX_ENC_LEGACY: {
f4bda337
TP		 3424 struct ieee80211_supported_band *sband;
3425
3426 sband = local->hw.wiphy->bands[status->band];
2400dfe2 3427 ri.legacy = sband->bitrates[status->rate_idx].bitrate;
f4a0f0c5 3428
d5b6f6d5 3429 if (mactime_plcp_start) {
57fbcce3 3430 if (status->band == NL80211_BAND_5GHZ) {
2400dfe2 3431 ts += 20;
f4a0f0c5 3432 mpdu_offset += 2;
7fdd69c5 3433 } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) {
f4a0f0c5
JB		 3434 ts += 96;
3435 } else {
3436 ts += 192;
3437 }
3438 }
da6a4352
JB		 3439 break;
3440 }
f4bda337
TP		 3441 }
3442
3443 rate = cfg80211_calculate_bitrate(&ri);
d86aa4f8 3444 if (WARN_ONCE(!rate,
f980ebc0
SS		 3445 "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n",
3446 (unsigned long long)status->flag, status->rate_idx,
8613c948 3447 status->nss))
d86aa4f8 3448 return 0;
f4bda337
TP		 3449
3450 /* rewind from end of MPDU */
d5b6f6d5 3451 if ((status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_END)
f4bda337
TP		 3452 ts -= mpdu_len * 8 * 10 / rate;
3453
3454 ts += mpdu_offset * 8 * 10 / rate;
3455
3456 return ts;
3457}
164eb02d 3458
bca8bc03
AKS		 3459/* Cancel CAC for the interfaces under the specified @local. If @ctx is
3460 * also provided, only the interfaces using that ctx will be canceled.
3461 */
3462void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
3463 struct ieee80211_chanctx *ctx)
164eb02d
SW		 3464{
3465 struct ieee80211_sub_if_data *sdata;
d2859df5 3466 struct cfg80211_chan_def chandef;
d74380ee 3467 struct ieee80211_link_data *link;
bca8bc03 3468 struct ieee80211_chanctx_conf *chanctx_conf;
d74380ee 3469 unsigned int link_id;
164eb02d 3470
a05829a7 3471 lockdep_assert_wiphy(local->hw.wiphy);
4a199068 3472
164eb02d 3473 list_for_each_entry(sdata, &local->interfaces, list) {
d74380ee
AKS		 3474 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS;
3475 link_id++) {
3476 link = sdata_dereference(sdata->link[link_id],
3477 sdata);
3478 if (!link)
3479 continue;
3480
bca8bc03
AKS		 3481 chanctx_conf = sdata_dereference(link->conf->chanctx_conf,
3482 sdata);
3483 if (ctx && &ctx->conf != chanctx_conf)
3484 continue;
3485
d74380ee
AKS		 3486 wiphy_delayed_work_cancel(local->hw.wiphy,
3487 &link->dfs_cac_timer_work);
3488
3489 if (!sdata->wdev.links[link_id].cac_started)
3490 continue;
3491
3492 chandef = link->conf->chanreq.oper;
3493 ieee80211_link_release_channel(link);
3494 cfg80211_cac_event(sdata->dev, &chandef,
164eb02d 3495 NL80211_RADAR_CAC_ABORTED,
d74380ee 3496 GFP_KERNEL, link_id);
164eb02d
SW		 3497 }
3498 }
164eb02d
SW		 3499}
3500
228e4f93
JB		 3501void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
3502 struct wiphy_work *work)
164eb02d
SW		 3503{
3504 struct ieee80211_local *local =
3505 container_of(work, struct ieee80211_local, radar_detected_work);
bca8bc03 3506 struct cfg80211_chan_def chandef;
486cf4c0 3507 struct ieee80211_chanctx *ctx;
486cf4c0 3508
5435af6e 3509 lockdep_assert_wiphy(local->hw.wiphy);
0cd8080e 3510
486cf4c0
MK		 3511 list_for_each_entry(ctx, &local->chanctx_list, list) {
3512 if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER)
3513 continue;
3514
bca8bc03
AKS		 3515 if (!ctx->radar_detected)
3516 continue;
3517
3518 ctx->radar_detected = false;
3519
486cf4c0 3520 chandef = ctx->conf.def;
bca8bc03
AKS		 3521
3522 ieee80211_dfs_cac_cancel(local, ctx);
3523 cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
486cf4c0 3524 }
bca8bc03 3525}
164eb02d 3526
bca8bc03
AKS		 3527static void
3528ieee80211_radar_mark_chan_ctx_iterator(struct ieee80211_hw *hw,
3529 struct ieee80211_chanctx_conf *chanctx_conf,
3530 void *data)
3531{
3532 struct ieee80211_chanctx *ctx =
3533 container_of(chanctx_conf, struct ieee80211_chanctx,
3534 conf);
164eb02d 3535
bca8bc03
AKS		 3536 if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER)
3537 return;
3538
3539 if (data && data != chanctx_conf)
3540 return;
3541
3542 ctx->radar_detected = true;
164eb02d
SW		 3543}
3544
bca8bc03
AKS		 3545void ieee80211_radar_detected(struct ieee80211_hw *hw,
3546 struct ieee80211_chanctx_conf *chanctx_conf)
164eb02d
SW		 3547{
3548 struct ieee80211_local *local = hw_to_local(hw);
3549
3550 trace_api_radar_detected(local);
3551
bca8bc03
AKS		 3552 ieee80211_iter_chan_contexts_atomic(hw, ieee80211_radar_mark_chan_ctx_iterator,
3553 chanctx_conf);
3554
228e4f93 3555 wiphy_work_queue(hw->wiphy, &local->radar_detected_work);
164eb02d
SW		 3556}
3557EXPORT_SYMBOL(ieee80211_radar_detected);
e6b7cde4 3558
310c8387
JB		 3559void ieee80211_chandef_downgrade(struct cfg80211_chan_def *c,
3560 struct ieee80211_conn_settings *conn)
e6b7cde4 3561{
b82730bf 3562 enum nl80211_chan_width new_primary_width;
310c8387 3563 struct ieee80211_conn_settings _ignored = {};
e6b7cde4 3564
310c8387
JB		 3565 /* allow passing NULL if caller doesn't care */
3566 if (!conn)
3567 conn = &_ignored;
3568
b82730bf
JB		 3569again:
3570 /* no-HT indicates nothing to do */
3571 new_primary_width = NL80211_CHAN_WIDTH_20_NOHT;
3572
e6b7cde4 3573 switch (c->width) {
310c8387
JB		 3574 default:
3575 case NL80211_CHAN_WIDTH_20_NOHT:
3576 WARN_ON_ONCE(1);
3577 fallthrough;
e6b7cde4
SW		 3578 case NL80211_CHAN_WIDTH_20:
3579 c->width = NL80211_CHAN_WIDTH_20_NOHT;
310c8387
JB		 3580 conn->mode = IEEE80211_CONN_MODE_LEGACY;
3581 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20;
b82730bf 3582 c->punctured = 0;
e6b7cde4
SW		 3583 break;
3584 case NL80211_CHAN_WIDTH_40:
3585 c->width = NL80211_CHAN_WIDTH_20;
3586 c->center_freq1 = c->chan->center_freq;
310c8387
JB		 3587 if (conn->mode == IEEE80211_CONN_MODE_VHT)
3588 conn->mode = IEEE80211_CONN_MODE_HT;
3589 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20;
b82730bf 3590 c->punctured = 0;
e6b7cde4
SW		 3591 break;
3592 case NL80211_CHAN_WIDTH_80:
8616f27b 3593 new_primary_width = NL80211_CHAN_WIDTH_40;
310c8387
JB		 3594 if (conn->mode == IEEE80211_CONN_MODE_VHT)
3595 conn->mode = IEEE80211_CONN_MODE_HT;
3596 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_40;
e6b7cde4
SW		 3597 break;
3598 case NL80211_CHAN_WIDTH_80P80:
3599 c->center_freq2 = 0;
3600 c->width = NL80211_CHAN_WIDTH_80;
310c8387 3601 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_80;
e6b7cde4
SW		 3602 break;
3603 case NL80211_CHAN_WIDTH_160:
8616f27b 3604 new_primary_width = NL80211_CHAN_WIDTH_80;
310c8387 3605 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_80;
e6b7cde4 3606 break;
5dca295d 3607 case NL80211_CHAN_WIDTH_320:
8616f27b 3608 new_primary_width = NL80211_CHAN_WIDTH_160;
310c8387 3609 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_160;
e6b7cde4 3610 break;
df78a0c0
TP		 3611 case NL80211_CHAN_WIDTH_1:
3612 case NL80211_CHAN_WIDTH_2:
3613 case NL80211_CHAN_WIDTH_4:
3614 case NL80211_CHAN_WIDTH_8:
3615 case NL80211_CHAN_WIDTH_16:
310c8387
JB		 3616 WARN_ON_ONCE(1);
3617 /* keep c->width */
3618 conn->mode = IEEE80211_CONN_MODE_S1G;
3619 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20;
3620 break;
e6b7cde4
SW		 3621 case NL80211_CHAN_WIDTH_5:
3622 case NL80211_CHAN_WIDTH_10:
3623 WARN_ON_ONCE(1);
3624 /* keep c->width */
310c8387
JB		 3625 conn->mode = IEEE80211_CONN_MODE_LEGACY;
3626 conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20;
e6b7cde4
SW		 3627 break;
3628 }
3629
8616f27b 3630 if (new_primary_width != NL80211_CHAN_WIDTH_20_NOHT) {
b82730bf
JB		 3631 c->center_freq1 = cfg80211_chandef_primary(c, new_primary_width,
3632 &c->punctured);
8616f27b
JB		 3633 c->width = new_primary_width;
3634 }
3635
b82730bf
JB		 3636 /*
3637 * With an 80 MHz channel, we might have the puncturing in the primary
3638 * 40 Mhz channel, but that's not valid when downgraded to 40 MHz width.
3639 * In that case, downgrade again.
3640 */
3641 if (!cfg80211_chandef_valid(c) && c->punctured)
3642 goto again;
3643
e6b7cde4 3644 WARN_ON_ONCE(!cfg80211_chandef_valid(c));
e6b7cde4 3645}
687da132 3646
c6da674a
CYY		 3647int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
3648 struct cfg80211_csa_settings *csa_settings)
3649{
3650 struct sk_buff *skb;
3651 struct ieee80211_mgmt *mgmt;
3652 struct ieee80211_local *local = sdata->local;
3653 int freq;
4c121fd6
JB		 3654 int hdr_len = offsetofend(struct ieee80211_mgmt,
3655 u.action.u.chan_switch);
c6da674a
CYY		 3656 u8 *pos;
3657
3658 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3659 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
3660 return -EOPNOTSUPP;
3661
3662 skb = dev_alloc_skb(local->tx_headroom + hdr_len +
3663 5 + /* channel switch announcement element */
3664 3 + /* secondary channel offset element */
75d627d5 3665 5 + /* wide bandwidth channel switch announcement */
c6da674a
CYY		 3666 8); /* mesh channel switch parameters element */
3667 if (!skb)
3668 return -ENOMEM;
3669
3670 skb_reserve(skb, local->tx_headroom);
b080db58 3671 mgmt = skb_put_zero(skb, hdr_len);
c6da674a
CYY		 3672 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3673 IEEE80211_STYPE_ACTION);
3674
3675 eth_broadcast_addr(mgmt->da);
3676 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3677 if (ieee80211_vif_is_mesh(&sdata->vif)) {
3678 memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
3679 } else {
3680 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
3681 memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
3682 }
3683 mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
3684 mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
3685 pos = skb_put(skb, 5);
3686 *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */
3687 *pos++ = 3; /* IE length */
3688 *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */
3689 freq = csa_settings->chandef.chan->center_freq;
3690 *pos++ = ieee80211_frequency_to_channel(freq); /* channel */
3691 *pos++ = csa_settings->count; /* count */
3692
3693 if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
3694 enum nl80211_channel_type ch_type;
3695
3696 skb_put(skb, 3);
3697 *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */
3698 *pos++ = 1; /* IE length */
3699 ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
3700 if (ch_type == NL80211_CHAN_HT40PLUS)
3701 *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
3702 else
3703 *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
3704 }
3705
3706 if (ieee80211_vif_is_mesh(&sdata->vif)) {
3707 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a
CYY		 3708
3709 skb_put(skb, 8);
3710 *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */
3711 *pos++ = 6; /* IE length */
3712 *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */
3713 *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */
3714 *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
3715 *pos++ |= csa_settings->block_tx ?
3716 WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00;
3717 put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */
3718 pos += 2;
ca91dc97 3719 put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */
c6da674a 3720 pos += 2;
c6da674a
CYY		 3721 }
3722
75d627d5
SW		 3723 if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 ||
3724 csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 ||
3725 csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) {
3726 skb_put(skb, 5);
3727 ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef);
3728 }
3729
c6da674a
CYY		 3730 ieee80211_tx_skb(sdata, skb);
3731 return 0;
3732}
2475b1cc 3733
a7022e65
FF		 3734static bool
3735ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i)
3736{
3737 s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1);
3738 int skip;
3739
3740 if (end > 0)
3741 return false;
3742
519ee691
JD		 3743 /* One shot NOA */
3744 if (data->count[i] == 1)
3745 return false;
3746
3747 if (data->desc[i].interval == 0)
3748 return false;
3749
a7022e65
FF		 3750 /* End time is in the past, check for repetitions */
3751 skip = DIV_ROUND_UP(-end, data->desc[i].interval);
3752 if (data->count[i] < 255) {
3753 if (data->count[i] <= skip) {
3754 data->count[i] = 0;
3755 return false;
3756 }
3757
3758 data->count[i] -= skip;
3759 }
3760
3761 data->desc[i].start += skip * data->desc[i].interval;
3762
3763 return true;
3764}
3765
3766static bool
3767ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf,
3768 s32 *offset)
3769{
3770 bool ret = false;
3771 int i;
3772
3773 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
3774 s32 cur;
3775
3776 if (!data->count[i])
3777 continue;
3778
3779 if (ieee80211_extend_noa_desc(data, tsf + *offset, i))
3780 ret = true;
3781
3782 cur = data->desc[i].start - tsf;
3783 if (cur > *offset)
3784 continue;
3785
3786 cur = data->desc[i].start + data->desc[i].duration - tsf;
3787 if (cur > *offset)
3788 *offset = cur;
3789 }
3790
3791 return ret;
3792}
3793
3794static u32
3795ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf)
3796{
3797 s32 offset = 0;
3798 int tries = 0;
3799 /*
3800 * arbitrary limit, used to avoid infinite loops when combined NoA
3801 * descriptors cover the full time period.
3802 */
3803 int max_tries = 5;
3804
3805 ieee80211_extend_absent_time(data, tsf, &offset);
3806 do {
3807 if (!ieee80211_extend_absent_time(data, tsf, &offset))
3808 break;
3809
3810 tries++;
3811 } while (tries < max_tries);
3812
3813 return offset;
3814}
3815
3816void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf)
3817{
3818 u32 next_offset = BIT(31) - 1;
3819 int i;
3820
3821 data->absent = 0;
3822 data->has_next_tsf = false;
3823 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
3824 s32 start;
3825
3826 if (!data->count[i])
3827 continue;
3828
3829 ieee80211_extend_noa_desc(data, tsf, i);
3830 start = data->desc[i].start - tsf;
3831 if (start <= 0)
3832 data->absent |= BIT(i);
3833
3834 if (next_offset > start)
3835 next_offset = start;
3836
3837 data->has_next_tsf = true;
3838 }
3839
3840 if (data->absent)
3841 next_offset = ieee80211_get_noa_absent_time(data, tsf);
3842
3843 data->next_tsf = tsf + next_offset;
3844}
3845EXPORT_SYMBOL(ieee80211_update_p2p_noa);
3846
3847int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr,
3848 struct ieee80211_noa_data *data, u32 tsf)
3849{
3850 int ret = 0;
3851 int i;
3852
3853 memset(data, 0, sizeof(*data));
3854
3855 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
3856 const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i];
3857
3858 if (!desc->count || !desc->duration)
3859 continue;
3860
3861 data->count[i] = desc->count;
3862 data->desc[i].start = le32_to_cpu(desc->start_time);
3863 data->desc[i].duration = le32_to_cpu(desc->duration);
3864 data->desc[i].interval = le32_to_cpu(desc->interval);
3865
3866 if (data->count[i] > 1 &&
3867 data->desc[i].interval < data->desc[i].duration)
3868 continue;
3869
3870 ieee80211_extend_noa_desc(data, tsf, i);
3871 ret++;
3872 }
3873
3874 if (ret)
3875 ieee80211_update_p2p_noa(data, tsf);
3876
3877 return ret;
3878}
3879EXPORT_SYMBOL(ieee80211_parse_p2p_noa);
057d5f4b
TP		 3880
3881void ieee80211_recalc_dtim(struct ieee80211_local *local,
3882 struct ieee80211_sub_if_data *sdata)
3883{
3884 u64 tsf = drv_get_tsf(local, sdata);
3885 u64 dtim_count = 0;
7a3750ff 3886 u32 beacon_int = sdata->vif.bss_conf.beacon_int * 1024;
057d5f4b
TP		 3887 u8 dtim_period = sdata->vif.bss_conf.dtim_period;
3888 struct ps_data *ps;
3889 u8 bcns_from_dtim;
3890
3891 if (tsf == -1ULL || !beacon_int || !dtim_period)
3892 return;
3893
3894 if (sdata->vif.type == NL80211_IFTYPE_AP ||
3895 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
3896 if (!sdata->bss)
3897 return;
3898
3899 ps = &sdata->bss->ps;
3900 } else if (ieee80211_vif_is_mesh(&sdata->vif)) {
3901 ps = &sdata->u.mesh.ps;
3902 } else {
3903 return;
3904 }
3905
3906 /*
3907 * actually finds last dtim_count, mac80211 will update in
3908 * __beacon_add_tim().
3909 * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period
3910 */
3911 do_div(tsf, beacon_int);
3912 bcns_from_dtim = do_div(tsf, dtim_period);
3913 /* just had a DTIM */
3914 if (!bcns_from_dtim)
3915 dtim_count = 0;
3916 else
3917 dtim_count = dtim_period - bcns_from_dtim;
3918
3919 ps->dtim_count = dtim_count;
3920}
73de86a3 3921
71e6195e
MK		 3922static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local,
3923 struct ieee80211_chanctx *ctx)
3924{
b4f85443 3925 struct ieee80211_link_data *link;
71e6195e
MK		 3926 u8 radar_detect = 0;
3927
5435af6e 3928 lockdep_assert_wiphy(local->hw.wiphy);
71e6195e
MK		 3929
3930 if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED))
3931 return 0;
3932
b4f85443
JB		 3933 list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list)
3934 if (link->reserved_radar_required)
6092077a 3935 radar_detect |= BIT(link->reserved.oper.width);
71e6195e
MK		 3936
3937 /*
3938 * An in-place reservation context should not have any assigned vifs
3939 * until it replaces the other context.
3940 */
3941 WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER &&
b4f85443
JB		 3942 !list_empty(&ctx->assigned_links));
3943
3944 list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) {
b4f85443
JB		 3945 if (!link->radar_required)
3946 continue;
3947
3948 radar_detect |=
6092077a 3949 BIT(link->conf->chanreq.oper.width);
b4f85443 3950 }
71e6195e
MK		 3951
3952 return radar_detect;
3953}
3954
0874bcd0
FF		 3955static u32
3956__ieee80211_get_radio_mask(struct ieee80211_sub_if_data *sdata)
3957{
3958 struct ieee80211_bss_conf *link_conf;
3959 struct ieee80211_chanctx_conf *conf;
3960 unsigned int link_id;
3961 u32 mask = 0;
3962
3963 for_each_vif_active_link(&sdata->vif, link_conf, link_id) {
3964 conf = sdata_dereference(link_conf->chanctx_conf, sdata);
3965 if (!conf || conf->radio_idx < 0)
3966 continue;
3967
3968 mask |= BIT(conf->radio_idx);
3969 }
3970
3971 return mask;
3972}
3973
3974u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev)
3975{
3976 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3977
3978 return __ieee80211_get_radio_mask(sdata);
3979}
3980
3981static bool
3982ieee80211_sdata_uses_radio(struct ieee80211_sub_if_data *sdata, int radio_idx)
3983{
3984 if (radio_idx < 0)
3985 return true;
3986
3987 return __ieee80211_get_radio_mask(sdata) & BIT(radio_idx);
3988}
3989
3990static int
3991ieee80211_fill_ifcomb_params(struct ieee80211_local *local,
3992 struct iface_combination_params *params,
3993 const struct cfg80211_chan_def *chandef,
3994 struct ieee80211_sub_if_data *sdata)
3995{
3996 struct ieee80211_sub_if_data *sdata_iter;
3997 struct ieee80211_chanctx *ctx;
3998 int total = !!sdata;
3999
4000 list_for_each_entry(ctx, &local->chanctx_list, list) {
4001 if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)
4002 continue;
4003
4004 if (params->radio_idx >= 0 &&
4005 ctx->conf.radio_idx != params->radio_idx)
4006 continue;
4007
4008 params->radar_detect |=
4009 ieee80211_chanctx_radar_detect(local, ctx);
4010
4011 if (chandef && ctx->mode != IEEE80211_CHANCTX_EXCLUSIVE &&
4012 cfg80211_chandef_compatible(chandef, &ctx->conf.def))
4013 continue;
4014
4015 params->num_different_channels++;
4016 }
4017
4018 list_for_each_entry(sdata_iter, &local->interfaces, list) {
4019 struct wireless_dev *wdev_iter;
4020
4021 wdev_iter = &sdata_iter->wdev;
4022
4023 if (sdata_iter == sdata ||
4024 !ieee80211_sdata_running(sdata_iter) ||
4025 cfg80211_iftype_allowed(local->hw.wiphy,
4026 wdev_iter->iftype, 0, 1))
4027 continue;
4028
4029 if (!ieee80211_sdata_uses_radio(sdata_iter, params->radio_idx))
4030 continue;
4031
4032 params->iftype_num[wdev_iter->iftype]++;
4033 total++;
4034 }
4035
4036 return total;
4037}
4038
73de86a3
LC		 4039int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
4040 const struct cfg80211_chan_def *chandef,
4041 enum ieee80211_chanctx_mode chanmode,
0874bcd0 4042 u8 radar_detect, int radio_idx)
73de86a3 4043{
0874bcd0 4044 bool shared = chanmode == IEEE80211_CHANCTX_SHARED;
73de86a3 4045 struct ieee80211_local *local = sdata->local;
73de86a3 4046 enum nl80211_iftype iftype = sdata->wdev.iftype;
e227300c
PK		 4047 struct iface_combination_params params = {
4048 .radar_detect = radar_detect,
0874bcd0 4049 .radio_idx = radio_idx,
e227300c 4050 };
0874bcd0 4051 int total;
73de86a3 4052
5435af6e 4053 lockdep_assert_wiphy(local->hw.wiphy);
73de86a3
LC		 4054
4055 if (WARN_ON(hweight32(radar_detect) > 1))
4056 return -EINVAL;
4057
b6a55015
LC		 4058 if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED &&
4059 !chandef->chan))
73de86a3
LC		 4060 return -EINVAL;
4061
4062 if (WARN_ON(iftype >= NUM_NL80211_IFTYPES))
4063 return -EINVAL;
4064
ac668afe
JB		 4065 if (sdata->vif.type == NL80211_IFTYPE_AP ||
4066 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) {
4067 /*
4068 * always passing this is harmless, since it'll be the
4069 * same value that cfg80211 finds if it finds the same
4070 * interface ... and that's always allowed
4071 */
4072 params.new_beacon_int = sdata->vif.bss_conf.beacon_int;
4073 }
4074
73de86a3 4075 /* Always allow software iftypes */
e6f40511 4076 if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) {
73de86a3
LC		 4077 if (radar_detect)
4078 return -EINVAL;
4079 return 0;
4080 }
4081
e227300c
PK		 4082 if (chandef)
4083 params.num_different_channels = 1;
73de86a3
LC		 4084
4085 if (iftype != NL80211_IFTYPE_UNSPECIFIED)
e227300c 4086 params.iftype_num[iftype] = 1;
73de86a3 4087
0874bcd0
FF		 4088 total = ieee80211_fill_ifcomb_params(local, &params,
4089 shared ? chandef : NULL,
4090 sdata);
e227300c 4091 if (total == 1 && !params.radar_detect)
73de86a3
LC		 4092 return 0;
4093
e227300c 4094 return cfg80211_check_combinations(local->hw.wiphy, &params);
73de86a3 4095}
6fa001bc
MK		 4096
4097static void
4098ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c,
4099 void *data)
4100{
4101 u32 *max_num_different_channels = data;
4102
4103 *max_num_different_channels = max(*max_num_different_channels,
4104 c->num_different_channels);
4105}
4106
0874bcd0 4107int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx)
6fa001bc 4108{
6fa001bc
MK		 4109 u32 max_num_different_channels = 1;
4110 int err;
abb4cfe3 4111 struct iface_combination_params params = {
0874bcd0 4112 .radio_idx = radio_idx,
abb4cfe3 4113 };
6fa001bc 4114
5435af6e 4115 lockdep_assert_wiphy(local->hw.wiphy);
6fa001bc 4116
0874bcd0 4117 ieee80211_fill_ifcomb_params(local, &params, NULL, NULL);
6fa001bc 4118
e227300c
PK		 4119 err = cfg80211_iter_combinations(local->hw.wiphy, &params,
4120 ieee80211_iter_max_chans,
6fa001bc
MK		 4121 &max_num_different_channels);
4122 if (err < 0)
4123 return err;
4124
4125 return max_num_different_channels;
7957c6c8
TP		 4126}
4127
4128void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
4129 struct ieee80211_sta_s1g_cap *caps,
4130 struct sk_buff *skb)
4131{
4132 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4133 struct ieee80211_s1g_cap s1g_capab;
4134 u8 *pos;
4135 int i;
4136
4137 if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
4138 return;
4139
4140 if (!caps->s1g)
4141 return;
4142
4143 memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap));
4144 memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs));
4145
4146 /* override the capability info */
4147 for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) {
4148 u8 mask = ifmgd->s1g_capa_mask.capab_info[i];
4149
4150 s1g_capab.capab_info[i] &= ~mask;
4151 s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask;
4152 }
4153
4154 /* then MCS and NSS set */
4155 for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) {
4156 u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i];
4157
4158 s1g_capab.supp_mcs_nss[i] &= ~mask;
4159 s1g_capab.supp_mcs_nss[i] |=
4160 ifmgd->s1g_capa.supp_mcs_nss[i] & mask;
4161 }
4162
4163 pos = skb_put(skb, 2 + sizeof(s1g_capab));
4164 *pos++ = WLAN_EID_S1G_CAPABILITIES;
4165 *pos++ = sizeof(s1g_capab);
4166
4167 memcpy(pos, &s1g_capab, sizeof(s1g_capab));
6fa001bc 4168}
40b861a0 4169
1d00ce80
TP		 4170void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
4171 struct sk_buff *skb)
4172{
4173 u8 *pos = skb_put(skb, 3);
4174
4175 *pos++ = WLAN_EID_AID_REQUEST;
4176 *pos++ = 1;
4177 *pos++ = 0;
4178}
4179
40b861a0
AN		 4180u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo)
4181{
4182 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
4183 *buf++ = 7; /* len */
4184 *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */
4185 *buf++ = 0x50;
4186 *buf++ = 0xf2;
4187 *buf++ = 2; /* WME */
4188 *buf++ = 0; /* WME info */
4189 *buf++ = 1; /* WME ver */
4190 *buf++ = qosinfo; /* U-APSD no in use */
4191
4192 return buf;
4193}
ba8c3d6f 4194
f2ac7e30
MK		 4195void ieee80211_txq_get_depth(struct ieee80211_txq *txq,
4196 unsigned long *frame_cnt,
4197 unsigned long *byte_cnt)
4198{
4199 struct txq_info *txqi = to_txq_info(txq);
bb42f2d1
THJ		 4200 u32 frag_cnt = 0, frag_bytes = 0;
4201 struct sk_buff *skb;
4202
4203 skb_queue_walk(&txqi->frags, skb) {
4204 frag_cnt++;
4205 frag_bytes += skb->len;
4206 }
f2ac7e30
MK		 4207
4208 if (frame_cnt)
bb42f2d1 4209 *frame_cnt = txqi->tin.backlog_packets + frag_cnt;
f2ac7e30
MK		 4210
4211 if (byte_cnt)
bb42f2d1 4212 *byte_cnt = txqi->tin.backlog_bytes + frag_bytes;
f2ac7e30
MK		 4213}
4214EXPORT_SYMBOL(ieee80211_txq_get_depth);
f438ceb8
EG		 4215
4216const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = {
4217 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO,
4218 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI,
4219 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE,
4220 IEEE80211_WMM_IE_STA_QOSINFO_AC_BK
4221};
05d10957
TP		 4222
4223u16 ieee80211_encode_usf(int listen_interval)
4224{
4225 static const int listen_int_usf[] = { 1, 10, 1000, 10000 };
4226 u16 ui, usf = 0;
4227
4228 /* find greatest USF */
4229 while (usf < IEEE80211_MAX_USF) {
4230 if (listen_interval % listen_int_usf[usf + 1])
4231 break;
4232 usf += 1;
4233 }
4234 ui = listen_interval / listen_int_usf[usf];
4235
4236 /* error if there is a remainder. Should've been checked by user */
4237 WARN_ON_ONCE(ui > IEEE80211_MAX_UI);
4238 listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) |
4239 FIELD_PREP(LISTEN_INT_UI, ui);
4240
4241 return (u16) listen_interval;
4242}
820acc81 4243
ea8af8be 4244/* this may return more than ieee80211_put_eht_cap() will need */
90233160 4245u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata)
820acc81
IP		 4246{
4247 const struct ieee80211_sta_he_cap *he_cap;
4248 const struct ieee80211_sta_eht_cap *eht_cap;
4249 struct ieee80211_supported_band *sband;
ea5cba26 4250 bool is_ap;
820acc81
IP		 4251 u8 n;
4252
4253 sband = ieee80211_get_sband(sdata);
4254 if (!sband)
4255 return 0;
4256
90233160
JB		 4257 he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
4258 eht_cap = ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif);
820acc81
IP		 4259 if (!he_cap || !eht_cap)
4260 return 0;
4261
90233160 4262 is_ap = sdata->vif.type == NL80211_IFTYPE_AP;
ea5cba26 4263
820acc81 4264 n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
ea5cba26
JB		 4265 &eht_cap->eht_cap_elem,
4266 is_ap);
820acc81 4267 return 2 + 1 +
dd01579e 4268 sizeof(eht_cap->eht_cap_elem) + n +
820acc81
IP		 4269 ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
4270 eht_cap->eht_cap_elem.phy_cap_info);
4271 return 0;
4272}
4273
ea8af8be
JB		 4274int ieee80211_put_eht_cap(struct sk_buff *skb,
4275 struct ieee80211_sub_if_data *sdata,
4276 const struct ieee80211_supported_band *sband,
4277 const struct ieee80211_conn_settings *conn)
820acc81 4278{
ea8af8be
JB		 4279 const struct ieee80211_sta_he_cap *he_cap =
4280 ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
4281 const struct ieee80211_sta_eht_cap *eht_cap =
4282 ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif);
4283 bool for_ap = sdata->vif.type == NL80211_IFTYPE_AP;
4284 struct ieee80211_eht_cap_elem_fixed fixed;
6239da18 4285 struct ieee80211_he_cap_elem he;
820acc81 4286 u8 mcs_nss_len, ppet_len;
6239da18 4287 u8 orig_mcs_nss_len;
820acc81 4288 u8 ie_len;
820acc81 4289
6239da18
JB		 4290 if (!conn)
4291 conn = &ieee80211_conn_settings_unlimited;
4292
820acc81
IP		 4293 /* Make sure we have place for the IE */
4294 if (!he_cap || !eht_cap)
ea8af8be 4295 return 0;
820acc81 4296
6239da18
JB		 4297 orig_mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
4298 &eht_cap->eht_cap_elem,
4299 for_ap);
4300
4301 ieee80211_get_adjusted_he_cap(conn, he_cap, &he);
4302
4303 fixed = eht_cap->eht_cap_elem;
4304
4305 if (conn->bw_limit < IEEE80211_CONN_BW_LIMIT_80)
4306 fixed.phy_cap_info[6] &=
4307 ~IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_80MHZ;
4308
4309 if (conn->bw_limit < IEEE80211_CONN_BW_LIMIT_160) {
4310 fixed.phy_cap_info[1] &=
4311 ~IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK;
4312 fixed.phy_cap_info[2] &=
4313 ~IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK;
4314 fixed.phy_cap_info[6] &=
4315 ~IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_160MHZ;
4316 }
4317
4318 if (conn->bw_limit < IEEE80211_CONN_BW_LIMIT_320) {
4319 fixed.phy_cap_info[0] &=
4320 ~IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ;
4321 fixed.phy_cap_info[1] &=
4322 ~IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK;
4323 fixed.phy_cap_info[2] &=
4324 ~IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK;
4325 fixed.phy_cap_info[6] &=
4326 ~IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_320MHZ;
4327 }
4328
4329 if (conn->bw_limit == IEEE80211_CONN_BW_LIMIT_20)
4330 fixed.phy_cap_info[0] &=
4331 ~IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ;
4332
4333 mcs_nss_len = ieee80211_eht_mcs_nss_size(&he, &fixed, for_ap);
820acc81 4334 ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
6239da18 4335 fixed.phy_cap_info);
820acc81
IP		 4336
4337 ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len;
ea8af8be
JB		 4338 if (skb_tailroom(skb) < ie_len)
4339 return -ENOBUFS;
820acc81 4340
ea8af8be
JB		 4341 skb_put_u8(skb, WLAN_EID_EXTENSION);
4342 skb_put_u8(skb, ie_len - 2);
4343 skb_put_u8(skb, WLAN_EID_EXT_EHT_CAPABILITY);
4344 skb_put_data(skb, &fixed, sizeof(fixed));
820acc81 4345
6239da18
JB		 4346 if (mcs_nss_len == 4 && orig_mcs_nss_len != 4) {
4347 /*
4348 * If the (non-AP) STA became 20 MHz only, then convert from
4349 * <=80 to 20-MHz-only format, where MCSes are indicated in
4350 * the groups 0-7, 8-9, 10-11, 12-13 rather than just 0-9,
4351 * 10-11, 12-13. Thus, use 0-9 for 0-7 and 8-9.
4352 */
ea8af8be
JB		 4353 skb_put_u8(skb, eht_cap->eht_mcs_nss_supp.bw._80.rx_tx_mcs9_max_nss);
4354 skb_put_u8(skb, eht_cap->eht_mcs_nss_supp.bw._80.rx_tx_mcs9_max_nss);
4355 skb_put_u8(skb, eht_cap->eht_mcs_nss_supp.bw._80.rx_tx_mcs11_max_nss);
4356 skb_put_u8(skb, eht_cap->eht_mcs_nss_supp.bw._80.rx_tx_mcs13_max_nss);
6239da18 4357 } else {
ea8af8be 4358 skb_put_data(skb, &eht_cap->eht_mcs_nss_supp, mcs_nss_len);
6239da18 4359 }
820acc81 4360
ea8af8be
JB		 4361 if (ppet_len)
4362 skb_put_data(skb, &eht_cap->eht_ppe_thres, ppet_len);
820acc81 4363
ea8af8be 4364 return 0;
820acc81 4365}
310c8387
JB		 4366
4367const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode)
4368{
4369 static const char * const modes[] = {
4370 [IEEE80211_CONN_MODE_S1G] = "S1G",
4371 [IEEE80211_CONN_MODE_LEGACY] = "legacy",
4372 [IEEE80211_CONN_MODE_HT] = "HT",
4373 [IEEE80211_CONN_MODE_VHT] = "VHT",
4374 [IEEE80211_CONN_MODE_HE] = "HE",
4375 [IEEE80211_CONN_MODE_EHT] = "EHT",
4376 };
4377
4378 if (WARN_ON(mode >= ARRAY_SIZE(modes)))
4379 return "<out of range>";
4380
4381 return modes[mode] ?: "<missing string>";
4382}
4383
4384enum ieee80211_conn_bw_limit
4385ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef)
4386{
4387 switch (chandef->width) {
4388 case NL80211_CHAN_WIDTH_20_NOHT:
4389 case NL80211_CHAN_WIDTH_20:
4390 return IEEE80211_CONN_BW_LIMIT_20;
4391 case NL80211_CHAN_WIDTH_40:
4392 return IEEE80211_CONN_BW_LIMIT_40;
4393 case NL80211_CHAN_WIDTH_80:
4394 return IEEE80211_CONN_BW_LIMIT_80;
4395 case NL80211_CHAN_WIDTH_80P80:
4396 case NL80211_CHAN_WIDTH_160:
4397 return IEEE80211_CONN_BW_LIMIT_160;
4398 case NL80211_CHAN_WIDTH_320:
4399 return IEEE80211_CONN_BW_LIMIT_320;
4400 default:
4401 WARN(1, "unhandled chandef width %d\n", chandef->width);
4402 return IEEE80211_CONN_BW_LIMIT_20;
4403 }
4404}
39dc8b8e
JB		 4405
4406void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe)
4407{
4408 for (int i = 0; i < 2; i++) {
4409 tpe->max_local[i].valid = false;
4410 memset(tpe->max_local[i].power,
4411 IEEE80211_TPE_MAX_TX_PWR_NO_CONSTRAINT,
4412 sizeof(tpe->max_local[i].power));
4413
4414 tpe->max_reg_client[i].valid = false;
4415 memset(tpe->max_reg_client[i].power,
4416 IEEE80211_TPE_MAX_TX_PWR_NO_CONSTRAINT,
4417 sizeof(tpe->max_reg_client[i].power));
4418
4419 tpe->psd_local[i].valid = false;
4420 memset(tpe->psd_local[i].power,
4421 IEEE80211_TPE_PSD_NO_LIMIT,
4422 sizeof(tpe->psd_local[i].power));
4423
4424 tpe->psd_reg_client[i].valid = false;
4425 memset(tpe->psd_reg_client[i].power,
4426 IEEE80211_TPE_PSD_NO_LIMIT,
4427 sizeof(tpe->psd_reg_client[i].power));
4428 }
4429}
Linux 6.x block layer and io_uring tree(s)