mac.c 154 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "mac.h"

#include <net/mac80211.h>
#include <linux/etherdevice.h>

Michal Kazior's avatar
Michal Kazior committed
23
#include "hif.h"
24
25
26
27
28
#include "core.h"
#include "debug.h"
#include "wmi.h"
#include "htt.h"
#include "txrx.h"
Kalle Valo's avatar
Kalle Valo committed
29
#include "testmode.h"
Michal Kazior's avatar
Michal Kazior committed
30
31
#include "wmi.h"
#include "wmi-ops.h"
32
#include "wow.h"
33

34
35
36
37
38
/*********/
/* Rates */
/*********/

static struct ieee80211_rate ath10k_rates[] = {
39
40
41
42
43
44
45
46
47
48
49
50
51
52
	{ .bitrate = 10,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_1M },
	{ .bitrate = 20,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_2M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_2M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 55,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_5_5M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_5_5M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 110,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_11M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_11M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
53
54
55
56
57
58
59
60
61

	{ .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
	{ .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
	{ .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
	{ .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
	{ .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
	{ .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
	{ .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
	{ .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
62
63
64
65
66
67
68
};

#define ath10k_a_rates (ath10k_rates + 4)
#define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
#define ath10k_g_rates (ath10k_rates + 0)
#define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))

69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
static bool ath10k_mac_bitrate_is_cck(int bitrate)
{
	switch (bitrate) {
	case 10:
	case 20:
	case 55:
	case 110:
		return true;
	}

	return false;
}

static u8 ath10k_mac_bitrate_to_rate(int bitrate)
{
	return DIV_ROUND_UP(bitrate, 5) |
	       (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
}

88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
			     u8 hw_rate)
{
	const struct ieee80211_rate *rate;
	int i;

	for (i = 0; i < sband->n_bitrates; i++) {
		rate = &sband->bitrates[i];

		if (rate->hw_value == hw_rate)
			return i;
		else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
			 rate->hw_value_short == hw_rate)
			return i;
	}

	return 0;
}

107
108
109
110
111
112
113
/**********/
/* Crypto */
/**********/

static int ath10k_send_key(struct ath10k_vif *arvif,
			   struct ieee80211_key_conf *key,
			   enum set_key_cmd cmd,
114
			   const u8 *macaddr, u32 flags)
115
{
116
	struct ath10k *ar = arvif->ar;
117
118
119
120
121
	struct wmi_vdev_install_key_arg arg = {
		.vdev_id = arvif->vdev_id,
		.key_idx = key->keyidx,
		.key_len = key->keylen,
		.key_data = key->key,
122
		.key_flags = flags,
123
124
125
		.macaddr = macaddr,
	};

Michal Kazior's avatar
Michal Kazior committed
126
127
	lockdep_assert_held(&arvif->ar->conf_mutex);

128
129
130
	switch (key->cipher) {
	case WLAN_CIPHER_SUITE_CCMP:
		arg.key_cipher = WMI_CIPHER_AES_CCM;
131
		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
132
133
134
135
136
137
138
139
140
141
		break;
	case WLAN_CIPHER_SUITE_TKIP:
		arg.key_cipher = WMI_CIPHER_TKIP;
		arg.key_txmic_len = 8;
		arg.key_rxmic_len = 8;
		break;
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
		arg.key_cipher = WMI_CIPHER_WEP;
		break;
142
	case WLAN_CIPHER_SUITE_AES_CMAC:
143
144
		WARN_ON(1);
		return -EINVAL;
145
	default:
146
		ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
147
148
149
150
151
152
153
154
155
156
157
158
159
160
		return -EOPNOTSUPP;
	}

	if (cmd == DISABLE_KEY) {
		arg.key_cipher = WMI_CIPHER_NONE;
		arg.key_data = NULL;
	}

	return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
}

static int ath10k_install_key(struct ath10k_vif *arvif,
			      struct ieee80211_key_conf *key,
			      enum set_key_cmd cmd,
161
			      const u8 *macaddr, u32 flags)
162
163
164
165
{
	struct ath10k *ar = arvif->ar;
	int ret;

Michal Kazior's avatar
Michal Kazior committed
166
167
	lockdep_assert_held(&ar->conf_mutex);

168
	reinit_completion(&ar->install_key_done);
169

170
	ret = ath10k_send_key(arvif, key, cmd, macaddr, flags);
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
	if (ret)
		return ret;

	ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
	if (ret == 0)
		return -ETIMEDOUT;

	return 0;
}

static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
					const u8 *addr)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int ret;
	int i;
188
	u32 flags;
189
190
191
192
193
194
195
196
197
198
199
200
201

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
	spin_unlock_bh(&ar->data_lock);

	if (!peer)
		return -ENOENT;

	for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
		if (arvif->wep_keys[i] == NULL)
			continue;
202
203
204
205

		flags = 0;
		flags |= WMI_KEY_PAIRWISE;

206
207
		/* set TX_USAGE flag for default key id */
		if (arvif->def_wep_key_idx == i)
208
			flags |= WMI_KEY_TX_USAGE;
209
210

		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
211
					 addr, flags);
212
213
214
		if (ret)
			return ret;

215
		spin_lock_bh(&ar->data_lock);
216
		peer->keys[i] = arvif->wep_keys[i];
217
		spin_unlock_bh(&ar->data_lock);
218
219
220
221
222
223
224
225
226
227
228
229
230
	}

	return 0;
}

static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
				  const u8 *addr)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int first_errno = 0;
	int ret;
	int i;
231
	u32 flags = 0;
232
233
234
235
236
237
238
239
240
241
242
243
244
245

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
	spin_unlock_bh(&ar->data_lock);

	if (!peer)
		return -ENOENT;

	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
		if (peer->keys[i] == NULL)
			continue;

246
		/* key flags are not required to delete the key */
247
		ret = ath10k_install_key(arvif, peer->keys[i],
248
					 DISABLE_KEY, addr, flags);
249
250
251
252
		if (ret && first_errno == 0)
			first_errno = ret;

		if (ret)
253
			ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
254
255
				    i, ret);

256
		spin_lock_bh(&ar->data_lock);
257
		peer->keys[i] = NULL;
258
		spin_unlock_bh(&ar->data_lock);
259
260
261
262
263
	}

	return first_errno;
}

Sujith Manoharan's avatar
Sujith Manoharan committed
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
				    u8 keyidx)
{
	struct ath10k_peer *peer;
	int i;

	lockdep_assert_held(&ar->data_lock);

	/* We don't know which vdev this peer belongs to,
	 * since WMI doesn't give us that information.
	 *
	 * FIXME: multi-bss needs to be handled.
	 */
	peer = ath10k_peer_find(ar, 0, addr);
	if (!peer)
		return false;

	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
		if (peer->keys[i] && peer->keys[i]->keyidx == keyidx)
			return true;
	}

	return false;
}

289
290
291
292
293
294
295
296
297
static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
				 struct ieee80211_key_conf *key)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	u8 addr[ETH_ALEN];
	int first_errno = 0;
	int ret;
	int i;
298
	u32 flags = 0;
299
300
301
302
303
304
305
306
307
308
309

	lockdep_assert_held(&ar->conf_mutex);

	for (;;) {
		/* since ath10k_install_key we can't hold data_lock all the
		 * time, so we try to remove the keys incrementally */
		spin_lock_bh(&ar->data_lock);
		i = 0;
		list_for_each_entry(peer, &ar->peers, list) {
			for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
				if (peer->keys[i] == key) {
Kalle Valo's avatar
Kalle Valo committed
310
					ether_addr_copy(addr, peer->addr);
311
312
313
314
315
316
317
318
319
320
321
322
					peer->keys[i] = NULL;
					break;
				}
			}

			if (i < ARRAY_SIZE(peer->keys))
				break;
		}
		spin_unlock_bh(&ar->data_lock);

		if (i == ARRAY_SIZE(peer->keys))
			break;
323
		/* key flags are not required to delete the key */
324
		ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr, flags);
325
326
327
328
		if (ret && first_errno == 0)
			first_errno = ret;

		if (ret)
329
			ath10k_warn(ar, "failed to remove key for %pM: %d\n",
330
				    addr, ret);
331
332
333
334
335
	}

	return first_errno;
}

336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
static int ath10k_mac_vif_sta_fix_wep_key(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	enum nl80211_iftype iftype = arvif->vif->type;
	struct ieee80211_key_conf *key;
	u32 flags = 0;
	int num = 0;
	int i;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	if (iftype != NL80211_IFTYPE_STATION)
		return 0;

	for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
		if (arvif->wep_keys[i]) {
			key = arvif->wep_keys[i];
			++num;
		}
	}

	if (num != 1)
		return 0;

	flags |= WMI_KEY_PAIRWISE;
	flags |= WMI_KEY_TX_USAGE;

	ret = ath10k_install_key(arvif, key, SET_KEY, arvif->bssid, flags);
	if (ret) {
		ath10k_warn(ar, "failed to install key %i on vdev %i: %d\n",
			    key->keyidx, arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
static int ath10k_mac_vif_update_wep_key(struct ath10k_vif *arvif,
					 struct ieee80211_key_conf *key)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(peer, &ar->peers, list) {
		if (!memcmp(peer->addr, arvif->vif->addr, ETH_ALEN))
			continue;

		if (!memcmp(peer->addr, arvif->bssid, ETH_ALEN))
			continue;

		if (peer->keys[key->keyidx] == key)
			continue;

		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vif vdev %i update key %i needs update\n",
			   arvif->vdev_id, key->keyidx);

		ret = ath10k_install_peer_wep_keys(arvif, peer->addr);
		if (ret) {
			ath10k_warn(ar, "failed to update wep keys on vdev %i for peer %pM: %d\n",
				    arvif->vdev_id, peer->addr, ret);
			return ret;
		}
	}

	return 0;
}

407
408
409
410
411
412
413
414
415
416
417
418
419
/*********************/
/* General utilities */
/*********************/

static inline enum wmi_phy_mode
chan_to_phymode(const struct cfg80211_chan_def *chandef)
{
	enum wmi_phy_mode phymode = MODE_UNKNOWN;

	switch (chandef->chan->band) {
	case IEEE80211_BAND_2GHZ:
		switch (chandef->width) {
		case NL80211_CHAN_WIDTH_20_NOHT:
420
421
422
423
			if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
				phymode = MODE_11B;
			else
				phymode = MODE_11G;
424
425
426
427
428
429
430
			break;
		case NL80211_CHAN_WIDTH_20:
			phymode = MODE_11NG_HT20;
			break;
		case NL80211_CHAN_WIDTH_40:
			phymode = MODE_11NG_HT40;
			break;
431
432
		case NL80211_CHAN_WIDTH_5:
		case NL80211_CHAN_WIDTH_10:
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
		case NL80211_CHAN_WIDTH_80:
		case NL80211_CHAN_WIDTH_80P80:
		case NL80211_CHAN_WIDTH_160:
			phymode = MODE_UNKNOWN;
			break;
		}
		break;
	case IEEE80211_BAND_5GHZ:
		switch (chandef->width) {
		case NL80211_CHAN_WIDTH_20_NOHT:
			phymode = MODE_11A;
			break;
		case NL80211_CHAN_WIDTH_20:
			phymode = MODE_11NA_HT20;
			break;
		case NL80211_CHAN_WIDTH_40:
			phymode = MODE_11NA_HT40;
			break;
		case NL80211_CHAN_WIDTH_80:
			phymode = MODE_11AC_VHT80;
			break;
454
455
		case NL80211_CHAN_WIDTH_5:
		case NL80211_CHAN_WIDTH_10:
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
		case NL80211_CHAN_WIDTH_80P80:
		case NL80211_CHAN_WIDTH_160:
			phymode = MODE_UNKNOWN;
			break;
		}
		break;
	default:
		break;
	}

	WARN_ON(phymode == MODE_UNKNOWN);
	return phymode;
}

static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
{
/*
 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
 *   0 for no restriction
 *   1 for 1/4 us
 *   2 for 1/2 us
 *   3 for 1 us
 *   4 for 2 us
 *   5 for 4 us
 *   6 for 8 us
 *   7 for 16 us
 */
	switch (mpdudensity) {
	case 0:
		return 0;
	case 1:
	case 2:
	case 3:
	/* Our lower layer calculations limit our precision to
	   1 microsecond */
		return 1;
	case 4:
		return 2;
	case 5:
		return 4;
	case 6:
		return 8;
	case 7:
		return 16;
	default:
		return 0;
	}
}

505
506
static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr,
			      enum wmi_peer_type peer_type)
507
508
509
510
511
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

512
513
514
	if (ar->num_peers >= ar->max_num_peers)
		return -ENOBUFS;

515
	ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
516
	if (ret) {
517
		ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
518
			    addr, vdev_id, ret);
519
		return ret;
520
	}
521
522

	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
523
	if (ret) {
524
		ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
525
			    addr, vdev_id, ret);
526
		return ret;
527
	}
528

529
	ar->num_peers++;
530
531
532
533

	return 0;
}

534
535
536
537
538
539
540
541
542
543
static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	int ret;

	param = ar->wmi.pdev_param->sta_kickout_th;
	ret = ath10k_wmi_pdev_set_param(ar, param,
					ATH10K_KICKOUT_THRESHOLD);
	if (ret) {
544
		ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
545
			    arvif->vdev_id, ret);
546
547
548
549
550
551
552
		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MIN_IDLE);
	if (ret) {
553
		ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
554
			    arvif->vdev_id, ret);
555
556
557
558
559
560
561
		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MAX_IDLE);
	if (ret) {
562
		ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
563
			    arvif->vdev_id, ret);
564
565
566
567
568
569
570
		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
	if (ret) {
571
		ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
572
			    arvif->vdev_id, ret);
573
574
575
576
577
578
		return ret;
	}

	return 0;
}

579
static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
580
{
581
582
583
584
585
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;

	vdev_param = ar->wmi.vdev_param->rts_threshold;
	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
586
587
588
589
}

static int ath10k_mac_set_frag(struct ath10k_vif *arvif, u32 value)
{
590
591
592
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;

593
594
595
596
597
	if (value != 0xFFFFFFFF)
		value = clamp_t(u32, arvif->ar->hw->wiphy->frag_threshold,
				ATH10K_FRAGMT_THRESHOLD_MIN,
				ATH10K_FRAGMT_THRESHOLD_MAX);

598
599
	vdev_param = ar->wmi.vdev_param->fragmentation_threshold;
	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
600
601
}

602
603
604
605
606
607
608
609
610
611
612
613
614
615
static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
	if (ret)
		return ret;

	ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
	if (ret)
		return ret;

616
617
	ar->num_peers--;

618
619
620
621
622
623
624
625
626
627
628
629
630
631
	return 0;
}

static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
{
	struct ath10k_peer *peer, *tmp;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
		if (peer->vdev_id != vdev_id)
			continue;

632
		ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
633
634
635
636
			    peer->addr, vdev_id);

		list_del(&peer->list);
		kfree(peer);
637
		ar->num_peers--;
638
639
640
641
	}
	spin_unlock_bh(&ar->data_lock);
}

642
643
644
645
646
647
648
649
650
651
652
653
static void ath10k_peer_cleanup_all(struct ath10k *ar)
{
	struct ath10k_peer *peer, *tmp;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
		list_del(&peer->list);
		kfree(peer);
	}
	spin_unlock_bh(&ar->data_lock);
654
655

	ar->num_peers = 0;
656
	ar->num_stations = 0;
657
658
}

659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
static int ath10k_mac_tdls_peer_update(struct ath10k *ar, u32 vdev_id,
				       struct ieee80211_sta *sta,
				       enum wmi_tdls_peer_state state)
{
	int ret;
	struct wmi_tdls_peer_update_cmd_arg arg = {};
	struct wmi_tdls_peer_capab_arg cap = {};
	struct wmi_channel_arg chan_arg = {};

	lockdep_assert_held(&ar->conf_mutex);

	arg.vdev_id = vdev_id;
	arg.peer_state = state;
	ether_addr_copy(arg.addr, sta->addr);

	cap.peer_max_sp = sta->max_sp;
	cap.peer_uapsd_queues = sta->uapsd_queues;

	if (state == WMI_TDLS_PEER_STATE_CONNECTED &&
	    !sta->tdls_initiator)
		cap.is_peer_responder = 1;

	ret = ath10k_wmi_tdls_peer_update(ar, &arg, &cap, &chan_arg);
	if (ret) {
		ath10k_warn(ar, "failed to update tdls peer %pM on vdev %i: %i\n",
			    arg.addr, vdev_id, ret);
		return ret;
	}

	return 0;
}

691
692
693
694
/************************/
/* Interface management */
/************************/

695
696
697
698
699
700
701
702
703
704
705
706
707
void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->data_lock);

	if (!arvif->beacon)
		return;

	if (!arvif->beacon_buf)
		dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
				 arvif->beacon->len, DMA_TO_DEVICE);

Michal Kazior's avatar
Michal Kazior committed
708
709
710
711
	if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
		    arvif->beacon_state != ATH10K_BEACON_SENT))
		return;

712
713
714
	dev_kfree_skb_any(arvif->beacon);

	arvif->beacon = NULL;
Michal Kazior's avatar
Michal Kazior committed
715
	arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
}

static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->data_lock);

	ath10k_mac_vif_beacon_free(arvif);

	if (arvif->beacon_buf) {
		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
				  arvif->beacon_buf, arvif->beacon_paddr);
		arvif->beacon_buf = NULL;
	}
}

733
734
735
736
static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
{
	int ret;

Michal Kazior's avatar
Michal Kazior committed
737
738
	lockdep_assert_held(&ar->conf_mutex);

Michal Kazior's avatar
Michal Kazior committed
739
740
741
	if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
		return -ESHUTDOWN;

742
743
744
745
746
747
748
749
	ret = wait_for_completion_timeout(&ar->vdev_setup_done,
					  ATH10K_VDEV_SETUP_TIMEOUT_HZ);
	if (ret == 0)
		return -ETIMEDOUT;

	return 0;
}

Michal Kazior's avatar
Michal Kazior committed
750
static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
751
{
752
753
	struct cfg80211_chan_def *chandef = &ar->chandef;
	struct ieee80211_channel *channel = chandef->chan;
754
755
756
757
758
759
760
	struct wmi_vdev_start_request_arg arg = {};
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	arg.vdev_id = vdev_id;
	arg.channel.freq = channel->center_freq;
761
	arg.channel.band_center_freq1 = chandef->center_freq1;
762
763
764

	/* TODO setup this dynamically, what in case we
	   don't have any vifs? */
765
	arg.channel.mode = chan_to_phymode(chandef);
766
767
	arg.channel.chan_radar =
			!!(channel->flags & IEEE80211_CHAN_RADAR);
768

769
	arg.channel.min_power = 0;
770
771
772
	arg.channel.max_power = channel->max_power * 2;
	arg.channel.max_reg_power = channel->max_reg_power * 2;
	arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
773

Michal Kazior's avatar
Michal Kazior committed
774
775
	reinit_completion(&ar->vdev_setup_done);

776
777
	ret = ath10k_wmi_vdev_start(ar, &arg);
	if (ret) {
778
		ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
779
			    vdev_id, ret);
780
781
782
783
784
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
785
		ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
786
			    vdev_id, ret);
787
788
789
790
791
		return ret;
	}

	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
	if (ret) {
792
		ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
793
			    vdev_id, ret);
794
795
796
797
798
		goto vdev_stop;
	}

	ar->monitor_vdev_id = vdev_id;

799
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
Michal Kazior's avatar
Michal Kazior committed
800
		   ar->monitor_vdev_id);
801
802
803
804
805
	return 0;

vdev_stop:
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
806
		ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
807
			    ar->monitor_vdev_id, ret);
808
809
810
811

	return ret;
}

Michal Kazior's avatar
Michal Kazior committed
812
static int ath10k_monitor_vdev_stop(struct ath10k *ar)
813
814
815
816
817
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

818
819
	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
	if (ret)
820
		ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
821
			    ar->monitor_vdev_id, ret);
822

Michal Kazior's avatar
Michal Kazior committed
823
824
	reinit_completion(&ar->vdev_setup_done);

825
826
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
827
		ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
828
			    ar->monitor_vdev_id, ret);
829
830
831

	ret = ath10k_vdev_setup_sync(ar);
	if (ret)
832
		ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
833
			    ar->monitor_vdev_id, ret);
834

835
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
Michal Kazior's avatar
Michal Kazior committed
836
		   ar->monitor_vdev_id);
837
838
839
	return ret;
}

Michal Kazior's avatar
Michal Kazior committed
840
static int ath10k_monitor_vdev_create(struct ath10k *ar)
841
842
843
844
845
{
	int bit, ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

Ben Greear's avatar
Ben Greear committed
846
	if (ar->free_vdev_map == 0) {
847
		ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
848
849
850
		return -ENOMEM;
	}

Ben Greear's avatar
Ben Greear committed
851
	bit = __ffs64(ar->free_vdev_map);
Ben Greear's avatar
Ben Greear committed
852

Ben Greear's avatar
Ben Greear committed
853
	ar->monitor_vdev_id = bit;
854
855
856
857
858

	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
				     WMI_VDEV_TYPE_MONITOR,
				     0, ar->mac_addr);
	if (ret) {
859
		ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
860
			    ar->monitor_vdev_id, ret);
Ben Greear's avatar
Ben Greear committed
861
		return ret;
862
863
	}

Ben Greear's avatar
Ben Greear committed
864
	ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
865
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
866
867
868
869
870
		   ar->monitor_vdev_id);

	return 0;
}

Michal Kazior's avatar
Michal Kazior committed
871
static int ath10k_monitor_vdev_delete(struct ath10k *ar)
872
873
874
875
876
877
878
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
	if (ret) {
879
		ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
880
			    ar->monitor_vdev_id, ret);
881
882
883
		return ret;
	}

Ben Greear's avatar
Ben Greear committed
884
	ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
885

886
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
887
888
889
890
		   ar->monitor_vdev_id);
	return ret;
}

Michal Kazior's avatar
Michal Kazior committed
891
892
893
894
895
896
897
898
static int ath10k_monitor_start(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_create(ar);
	if (ret) {
899
		ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
Michal Kazior's avatar
Michal Kazior committed
900
901
902
903
904
		return ret;
	}

	ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
	if (ret) {
905
		ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
Michal Kazior's avatar
Michal Kazior committed
906
907
908
909
910
		ath10k_monitor_vdev_delete(ar);
		return ret;
	}

	ar->monitor_started = true;
911
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
Michal Kazior's avatar
Michal Kazior committed
912
913
914
915

	return 0;
}

916
static int ath10k_monitor_stop(struct ath10k *ar)
Michal Kazior's avatar
Michal Kazior committed
917
918
919
920
921
922
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_stop(ar);
923
	if (ret) {
924
		ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
925
926
		return ret;
	}
Michal Kazior's avatar
Michal Kazior committed
927
928

	ret = ath10k_monitor_vdev_delete(ar);
929
	if (ret) {
930
		ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
931
932
		return ret;
	}
Michal Kazior's avatar
Michal Kazior committed
933
934

	ar->monitor_started = false;
935
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
936
937
938
939

	return 0;
}

940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
static bool ath10k_mac_should_disable_promisc(struct ath10k *ar)
{
	struct ath10k_vif *arvif;

	if (!(ar->filter_flags & FIF_PROMISC_IN_BSS))
		return true;

	if (!ar->num_started_vdevs)
		return false;

	list_for_each_entry(arvif, &ar->arvifs, list)
		if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
			return false;

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac disabling promiscuous mode because vdev is started\n");
	return true;
}

959
960
961
962
963
964
965
static int ath10k_monitor_recalc(struct ath10k *ar)
{
	bool should_start;

	lockdep_assert_held(&ar->conf_mutex);

	should_start = ar->monitor ||
Michal Kazior's avatar
Michal Kazior committed
966
		       !ath10k_mac_should_disable_promisc(ar) ||
967
968
969
970
971
972
973
974
975
976
977
		       test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac monitor recalc started? %d should? %d\n",
		   ar->monitor_started, should_start);

	if (should_start == ar->monitor_started)
		return 0;

	if (should_start)
		return ath10k_monitor_start(ar);
978
979

	return ath10k_monitor_stop(ar);
Michal Kazior's avatar
Michal Kazior committed
980
981
}

982
983
984
985
986
987
988
989
990
static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 vdev_param, rts_cts = 0;

	lockdep_assert_held(&ar->conf_mutex);

	vdev_param = ar->wmi.vdev_param->enable_rtscts;

991
	rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
992
993
994
995

	if (arvif->num_legacy_stations > 0)
		rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
			      WMI_RTSCTS_PROFILE);
996
997
998
	else
		rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
			      WMI_RTSCTS_PROFILE);
999
1000
1001
1002
1003

	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
					 rts_cts);
}

1004
1005
1006
1007
1008
1009
1010
1011
static int ath10k_start_cac(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);

1012
	ret = ath10k_monitor_recalc(ar);
1013
	if (ret) {
1014
		ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1015
1016
1017
1018
		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
		return ret;
	}

1019
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
		   ar->monitor_vdev_id);

	return 0;
}

static int ath10k_stop_cac(struct ath10k *ar)
{
	lockdep_assert_held(&ar->conf_mutex);

	/* CAC is not running - do nothing */
	if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
		return 0;

	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
Michal Kazior's avatar
Michal Kazior committed
1034
	ath10k_monitor_stop(ar);
1035

1036
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1037
1038
1039
1040

	return 0;
}

1041
static void ath10k_recalc_radar_detection(struct ath10k *ar)
1042
1043
1044
1045
1046
1047
1048
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_stop_cac(ar);

1049
	if (!ar->radar_enabled)
1050
1051
		return;

1052
	if (ar->num_started_vdevs > 0)
1053
1054
1055
1056
1057
1058
1059
1060
1061
		return;

	ret = ath10k_start_cac(ar);
	if (ret) {
		/*
		 * Not possible to start CAC on current channel so starting
		 * radiation is not allowed, make this channel DFS_UNAVAILABLE
		 * by indicating that radar was detected.
		 */
1062
		ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1063
1064
1065
1066
		ieee80211_radar_detected(ar->hw);
	}
}

1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
static int ath10k_vdev_stop(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	reinit_completion(&ar->vdev_setup_done);

	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
	if (ret) {
		ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
		ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	WARN_ON(ar->num_started_vdevs == 0);

	if (ar->num_started_vdevs != 0) {
		ar->num_started_vdevs--;
		ath10k_recalc_radar_detection(ar);
	}

	return ret;
}

1100
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
Michal Kazior's avatar
Michal Kazior committed
1101
1102
1103
1104
{
	struct ath10k *ar = arvif->ar;
	struct cfg80211_chan_def *chandef = &ar->chandef;
	struct wmi_vdev_start_request_arg arg = {};
1105
	int ret = 0, ret2;
Michal Kazior's avatar
Michal Kazior committed
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136

	lockdep_assert_held(&ar->conf_mutex);

	reinit_completion(&ar->vdev_setup_done);

	arg.vdev_id = arvif->vdev_id;
	arg.dtim_period = arvif->dtim_period;
	arg.bcn_intval = arvif->beacon_interval;

	arg.channel.freq = chandef->chan->center_freq;
	arg.channel.band_center_freq1 = chandef->center_freq1;
	arg.channel.mode = chan_to_phymode(chandef);

	arg.channel.min_power = 0;
	arg.channel.max_power = chandef->chan->max_power * 2;
	arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;

	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
		arg.ssid = arvif->u.ap.ssid;
		arg.ssid_len = arvif->u.ap.ssid_len;
		arg.hidden_ssid = arvif->u.ap.hidden_ssid;

		/* For now allow DFS for AP mode */
		arg.channel.chan_radar =
			!!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
		arg.ssid = arvif->vif->bss_conf.ssid;
		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
	}

1137
	ath10k_dbg(ar, ATH10K_DBG_MAC,
Michal Kazior's avatar
Michal Kazior committed
1138
1139
1140
1141
		   "mac vdev %d start center_freq %d phymode %s\n",
		   arg.vdev_id, arg.channel.freq,
		   ath10k_wmi_phymode_str(arg.channel.mode));

1142
1143
1144
1145
1146
	if (restart)
		ret = ath10k_wmi_vdev_restart(ar, &arg);
	else
		ret = ath10k_wmi_vdev_start(ar, &arg);

Michal Kazior's avatar
Michal Kazior committed
1147
	if (ret) {
1148
		ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
Michal Kazior's avatar
Michal Kazior committed
1149
1150
1151
1152
1153
1154
			    arg.vdev_id, ret);
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
1155
1156
1157
		ath10k_warn(ar,
			    "failed to synchronize setup for vdev %i restart %d: %d\n",
			    arg.vdev_id, restart, ret);
Michal Kazior's avatar
Michal Kazior committed
1158
1159
1160
		return ret;
	}

1161
1162
1163
	ar->num_started_vdevs++;
	ath10k_recalc_radar_detection(ar);

1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
	ret = ath10k_monitor_recalc(ar);
	if (ret) {
		ath10k_warn(ar, "mac failed to recalc monitor for vdev %i restart %d: %d\n",
			    arg.vdev_id, restart, ret);
		ret2 = ath10k_vdev_stop(arvif);
		if (ret2)
			ath10k_warn(ar, "mac failed to stop vdev %i restart %d: %d\n",
				    arg.vdev_id, restart, ret2);
	}

Michal Kazior's avatar
Michal Kazior committed
1174
1175
1176
	return ret;
}

1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
static int ath10k_vdev_start(struct ath10k_vif *arvif)
{
	return ath10k_vdev_start_restart(arvif, false);
}

static int ath10k_vdev_restart(struct ath10k_vif *arvif)
{
	return ath10k_vdev_start_restart(arvif, true);
}

1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
static int ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif *arvif,
				       struct sk_buff *bcn)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_mgmt *mgmt;
	const u8 *p2p_ie;
	int ret;

	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return 0;

	if (arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
		return 0;

	mgmt = (void *)bcn->data;
	p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
					 mgmt->u.beacon.variable,
					 bcn->len - (mgmt->u.beacon.variable -
						     bcn->data));
	if (!p2p_ie)
		return -ENOENT;

	ret = ath10k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
	if (ret) {
		ath10k_warn(ar, "failed to submit p2p go bcn ie for vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
				       u8 oui_type, size_t ie_offset)
{
	size_t len;
	const u8 *next;
	const u8 *end;
	u8 *ie;

	if (WARN_ON(skb->len < ie_offset))
		return -EINVAL;

	ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
					   skb->data + ie_offset,
					   skb->len - ie_offset);
	if (!ie)
		return -ENOENT;

	len = ie[1] + 2;
	end = skb->data + skb->len;
	next = ie + len;

	if (WARN_ON(next > end))
		return -EINVAL;

	memmove(ie, next, end - next);
	skb_trim(skb, skb->len - len);

	return 0;
}

static int ath10k_mac_setup_bcn_tmpl(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_vif *vif = arvif->vif;
	struct ieee80211_mutable_offsets offs = {};
	struct sk_buff *bcn;
	int ret;

	if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
		return 0;

1261
1262
1263
1264
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
		return 0;

1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
	bcn = ieee80211_beacon_get_template(hw, vif, &offs);
	if (!bcn) {
		ath10k_warn(ar, "failed to get beacon template from mac80211\n");
		return -EPERM;
	}

	ret = ath10k_mac_setup_bcn_p2p_ie(arvif, bcn);
	if (ret) {
		ath10k_warn(ar, "failed to setup p2p go bcn ie: %d\n", ret);
		kfree_skb(bcn);
		return ret;
	}

	/* P2P IE is inserted by firmware automatically (as configured above)
	 * so remove it from the base beacon template to avoid duplicate P2P
	 * IEs in beacon frames.
	 */
	ath10k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
				    offsetof(struct ieee80211_mgmt,
					     u.beacon.variable));

	ret = ath10k_wmi_bcn_tmpl(ar, arvif->vdev_id, offs.tim_offset, bcn, 0,
				  0, NULL, 0);
	kfree_skb(bcn);

	if (ret) {
		ath10k_warn(ar, "failed to submit beacon template command: %d\n",
			    ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_vif *vif = arvif->vif;
	struct sk_buff *prb;
	int ret;

	if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
		return 0;

1310
1311
1312
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return 0;

1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
	prb = ieee80211_proberesp_get(hw, vif);
	if (!prb) {
		ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
		return -EPERM;
	}

	ret = ath10k_wmi_prb_tmpl(ar, arvif->vdev_id, prb);
	kfree_skb(prb);

	if (ret) {
		ath10k_warn(ar, "failed to submit probe resp template command: %d\n",
			    ret);
		return ret;
	}

	return 0;
}

1331
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1332
				     struct ieee80211_bss_conf *info)
1333
{
1334
	struct ath10k *ar = arvif->ar;
1335
1336
	int ret = 0;

Michal Kazior's avatar
Michal Kazior committed
1337
1338
	lockdep_assert_held(&arvif->ar->conf_mutex);

1339
1340
	if (!info->enable_beacon) {
		ath10k_vdev_stop(arvif);
1341
1342
1343

		arvif->is_started = false;
		arvif->is_up = false;
1344
1345

		spin_lock_bh(&arvif->ar->data_lock);
1346
		ath10k_mac_vif_beacon_free(arvif);
1347
1348
		spin_unlock_bh(&arvif->ar->data_lock);

1349
1350
1351
1352
1353
1354
1355
1356
1357
		return;
	}

	arvif->tx_seq_no = 0x1000;

	ret = ath10k_vdev_start(arvif);
	if (ret)
		return;

1358
	arvif->aid = 0;
Kalle Valo's avatar
Kalle Valo committed
1359
	ether_addr_copy(arvif->bssid, info->bssid);
1360
1361
1362

	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
				 arvif->bssid);
1363
	if (ret) {
1364
		ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1365
			    arvif->vdev_id, ret);
1366
		ath10k_vdev_stop(arvif);
1367
1368
		return;
	}
1369
1370
1371
1372

	arvif->is_started = true;
	arvif->is_up = true;

1373
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1374
1375
1376
1377
1378
1379
}

static void ath10k_control_ibss(struct ath10k_vif *arvif,
				struct ieee80211_bss_conf *info,
				const u8 self_peer[ETH_ALEN])
{
1380
	struct ath10k *ar = arvif->ar;
1381
	u32 vdev_param;
1382
1383
	int ret = 0;

Michal Kazior's avatar
Michal Kazior committed
1384
1385
	lockdep_assert_held(&arvif->ar->conf_mutex);

1386
1387
1388
	if (!info->ibss_joined) {
		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
		if (ret)
1389
			ath10k_warn(ar, "failed to delete IBSS self peer %pM for vdev %d: %d\n",
1390
1391
				    self_peer, arvif->vdev_id, ret);

1392
		if (is_zero_ether_addr(arvif->bssid))
1393
1394
			return;

1395
		memset(arvif->bssid, 0, ETH_ALEN);
1396
1397
1398
1399

		return;
	}

1400
1401
	ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer,
				 WMI_PEER_TYPE_DEFAULT);
1402
	if (ret) {
1403
		ath10k_warn(ar, "failed to create IBSS self peer %pM for vdev %d: %d\n",
1404
1405
1406
1407
			    self_peer, arvif->vdev_id, ret);
		return;
	}

1408
1409
	vdev_param = arvif->ar->wmi.vdev_param->atim_window;
	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1410
1411
					ATH10K_DEFAULT_ATIM);
	if (ret)
1412
		ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1413
1414
1415
			    arvif->vdev_id, ret);
}

Michal Kazior's avatar
Michal Kazior committed
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
static int ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	u32 value;
	int ret;

	lockdep_assert_held(&arvif->ar->conf_mutex);

	if (arvif->u.sta.uapsd)
		value = WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER;
	else
		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;

	param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param, value);
	if (ret) {
		ath10k_warn(ar, "failed to submit ps wake threshold %u on vdev %i: %d\n",
			    value, arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	u32 value;
	int ret;

	lockdep_assert_held(&arvif->ar->conf_mutex);

	if (arvif->u.sta.uapsd)
		value = WMI_STA_PS_PSPOLL_COUNT_UAPSD;
	else
		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;

	param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
					  param, value);
	if (ret) {
		ath10k_warn(ar, "failed to submit ps poll count %u on vdev %i: %d\n",
			    value, arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
static int ath10k_mac_ps_vif_count(struct ath10k *ar)
{
	struct ath10k_vif *arvif;
	int num = 0;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(arvif, &ar->arvifs, list)
		if (arvif->ps)
			num++;

	return num;
}

1481
static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1482
{
1483
	struct ath10k *ar = arvif->ar;
1484
	struct ieee80211_vif *vif = arvif->vif;
1485
	struct ieee80211_conf *conf = &ar->hw->conf;
1486
1487
1488
	enum wmi_sta_powersave_param param;
	enum wmi_sta_ps_mode psmode;
	int ret;
1489
	int ps_timeout