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ath10k: clean up assoc code
[deliverable/linux.git] / drivers / net / wireless / ath / ath10k / mac.c
1 /*
2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include "mac.h"
19
20 #include <net/mac80211.h>
21 #include <linux/etherdevice.h>
22
23 #include "hif.h"
24 #include "core.h"
25 #include "debug.h"
26 #include "wmi.h"
27 #include "htt.h"
28 #include "txrx.h"
29 #include "testmode.h"
30
31 /**********/
32 /* Crypto */
33 /**********/
34
35 static int ath10k_send_key(struct ath10k_vif *arvif,
36 struct ieee80211_key_conf *key,
37 enum set_key_cmd cmd,
38 const u8 *macaddr)
39 {
40 struct ath10k *ar = arvif->ar;
41 struct wmi_vdev_install_key_arg arg = {
42 .vdev_id = arvif->vdev_id,
43 .key_idx = key->keyidx,
44 .key_len = key->keylen,
45 .key_data = key->key,
46 .macaddr = macaddr,
47 };
48
49 lockdep_assert_held(&arvif->ar->conf_mutex);
50
51 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
52 arg.key_flags = WMI_KEY_PAIRWISE;
53 else
54 arg.key_flags = WMI_KEY_GROUP;
55
56 switch (key->cipher) {
57 case WLAN_CIPHER_SUITE_CCMP:
58 arg.key_cipher = WMI_CIPHER_AES_CCM;
59 if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
60 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
61 else
62 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
63 break;
64 case WLAN_CIPHER_SUITE_TKIP:
65 arg.key_cipher = WMI_CIPHER_TKIP;
66 arg.key_txmic_len = 8;
67 arg.key_rxmic_len = 8;
68 break;
69 case WLAN_CIPHER_SUITE_WEP40:
70 case WLAN_CIPHER_SUITE_WEP104:
71 arg.key_cipher = WMI_CIPHER_WEP;
72 /* AP/IBSS mode requires self-key to be groupwise
73 * Otherwise pairwise key must be set */
74 if (memcmp(macaddr, arvif->vif->addr, ETH_ALEN))
75 arg.key_flags = WMI_KEY_PAIRWISE;
76 break;
77 default:
78 ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
79 return -EOPNOTSUPP;
80 }
81
82 if (cmd == DISABLE_KEY) {
83 arg.key_cipher = WMI_CIPHER_NONE;
84 arg.key_data = NULL;
85 }
86
87 return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
88 }
89
90 static int ath10k_install_key(struct ath10k_vif *arvif,
91 struct ieee80211_key_conf *key,
92 enum set_key_cmd cmd,
93 const u8 *macaddr)
94 {
95 struct ath10k *ar = arvif->ar;
96 int ret;
97
98 lockdep_assert_held(&ar->conf_mutex);
99
100 reinit_completion(&ar->install_key_done);
101
102 ret = ath10k_send_key(arvif, key, cmd, macaddr);
103 if (ret)
104 return ret;
105
106 ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
107 if (ret == 0)
108 return -ETIMEDOUT;
109
110 return 0;
111 }
112
113 static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
114 const u8 *addr)
115 {
116 struct ath10k *ar = arvif->ar;
117 struct ath10k_peer *peer;
118 int ret;
119 int i;
120
121 lockdep_assert_held(&ar->conf_mutex);
122
123 spin_lock_bh(&ar->data_lock);
124 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
125 spin_unlock_bh(&ar->data_lock);
126
127 if (!peer)
128 return -ENOENT;
129
130 for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
131 if (arvif->wep_keys[i] == NULL)
132 continue;
133
134 ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
135 addr);
136 if (ret)
137 return ret;
138
139 peer->keys[i] = arvif->wep_keys[i];
140 }
141
142 return 0;
143 }
144
145 static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
146 const u8 *addr)
147 {
148 struct ath10k *ar = arvif->ar;
149 struct ath10k_peer *peer;
150 int first_errno = 0;
151 int ret;
152 int i;
153
154 lockdep_assert_held(&ar->conf_mutex);
155
156 spin_lock_bh(&ar->data_lock);
157 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
158 spin_unlock_bh(&ar->data_lock);
159
160 if (!peer)
161 return -ENOENT;
162
163 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
164 if (peer->keys[i] == NULL)
165 continue;
166
167 ret = ath10k_install_key(arvif, peer->keys[i],
168 DISABLE_KEY, addr);
169 if (ret && first_errno == 0)
170 first_errno = ret;
171
172 if (ret)
173 ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
174 i, ret);
175
176 peer->keys[i] = NULL;
177 }
178
179 return first_errno;
180 }
181
182 static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
183 struct ieee80211_key_conf *key)
184 {
185 struct ath10k *ar = arvif->ar;
186 struct ath10k_peer *peer;
187 u8 addr[ETH_ALEN];
188 int first_errno = 0;
189 int ret;
190 int i;
191
192 lockdep_assert_held(&ar->conf_mutex);
193
194 for (;;) {
195 /* since ath10k_install_key we can't hold data_lock all the
196 * time, so we try to remove the keys incrementally */
197 spin_lock_bh(&ar->data_lock);
198 i = 0;
199 list_for_each_entry(peer, &ar->peers, list) {
200 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
201 if (peer->keys[i] == key) {
202 ether_addr_copy(addr, peer->addr);
203 peer->keys[i] = NULL;
204 break;
205 }
206 }
207
208 if (i < ARRAY_SIZE(peer->keys))
209 break;
210 }
211 spin_unlock_bh(&ar->data_lock);
212
213 if (i == ARRAY_SIZE(peer->keys))
214 break;
215
216 ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr);
217 if (ret && first_errno == 0)
218 first_errno = ret;
219
220 if (ret)
221 ath10k_warn(ar, "failed to remove key for %pM: %d\n",
222 addr, ret);
223 }
224
225 return first_errno;
226 }
227
228 /*********************/
229 /* General utilities */
230 /*********************/
231
232 static inline enum wmi_phy_mode
233 chan_to_phymode(const struct cfg80211_chan_def *chandef)
234 {
235 enum wmi_phy_mode phymode = MODE_UNKNOWN;
236
237 switch (chandef->chan->band) {
238 case IEEE80211_BAND_2GHZ:
239 switch (chandef->width) {
240 case NL80211_CHAN_WIDTH_20_NOHT:
241 phymode = MODE_11G;
242 break;
243 case NL80211_CHAN_WIDTH_20:
244 phymode = MODE_11NG_HT20;
245 break;
246 case NL80211_CHAN_WIDTH_40:
247 phymode = MODE_11NG_HT40;
248 break;
249 case NL80211_CHAN_WIDTH_5:
250 case NL80211_CHAN_WIDTH_10:
251 case NL80211_CHAN_WIDTH_80:
252 case NL80211_CHAN_WIDTH_80P80:
253 case NL80211_CHAN_WIDTH_160:
254 phymode = MODE_UNKNOWN;
255 break;
256 }
257 break;
258 case IEEE80211_BAND_5GHZ:
259 switch (chandef->width) {
260 case NL80211_CHAN_WIDTH_20_NOHT:
261 phymode = MODE_11A;
262 break;
263 case NL80211_CHAN_WIDTH_20:
264 phymode = MODE_11NA_HT20;
265 break;
266 case NL80211_CHAN_WIDTH_40:
267 phymode = MODE_11NA_HT40;
268 break;
269 case NL80211_CHAN_WIDTH_80:
270 phymode = MODE_11AC_VHT80;
271 break;
272 case NL80211_CHAN_WIDTH_5:
273 case NL80211_CHAN_WIDTH_10:
274 case NL80211_CHAN_WIDTH_80P80:
275 case NL80211_CHAN_WIDTH_160:
276 phymode = MODE_UNKNOWN;
277 break;
278 }
279 break;
280 default:
281 break;
282 }
283
284 WARN_ON(phymode == MODE_UNKNOWN);
285 return phymode;
286 }
287
288 static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
289 {
290 /*
291 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
292 * 0 for no restriction
293 * 1 for 1/4 us
294 * 2 for 1/2 us
295 * 3 for 1 us
296 * 4 for 2 us
297 * 5 for 4 us
298 * 6 for 8 us
299 * 7 for 16 us
300 */
301 switch (mpdudensity) {
302 case 0:
303 return 0;
304 case 1:
305 case 2:
306 case 3:
307 /* Our lower layer calculations limit our precision to
308 1 microsecond */
309 return 1;
310 case 4:
311 return 2;
312 case 5:
313 return 4;
314 case 6:
315 return 8;
316 case 7:
317 return 16;
318 default:
319 return 0;
320 }
321 }
322
323 static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
324 {
325 int ret;
326
327 lockdep_assert_held(&ar->conf_mutex);
328
329 ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
330 if (ret) {
331 ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
332 addr, vdev_id, ret);
333 return ret;
334 }
335
336 ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
337 if (ret) {
338 ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
339 addr, vdev_id, ret);
340 return ret;
341 }
342 spin_lock_bh(&ar->data_lock);
343 ar->num_peers++;
344 spin_unlock_bh(&ar->data_lock);
345
346 return 0;
347 }
348
349 static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
350 {
351 struct ath10k *ar = arvif->ar;
352 u32 param;
353 int ret;
354
355 param = ar->wmi.pdev_param->sta_kickout_th;
356 ret = ath10k_wmi_pdev_set_param(ar, param,
357 ATH10K_KICKOUT_THRESHOLD);
358 if (ret) {
359 ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
360 arvif->vdev_id, ret);
361 return ret;
362 }
363
364 param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
365 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
366 ATH10K_KEEPALIVE_MIN_IDLE);
367 if (ret) {
368 ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
369 arvif->vdev_id, ret);
370 return ret;
371 }
372
373 param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
374 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
375 ATH10K_KEEPALIVE_MAX_IDLE);
376 if (ret) {
377 ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
378 arvif->vdev_id, ret);
379 return ret;
380 }
381
382 param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
383 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
384 ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
385 if (ret) {
386 ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
387 arvif->vdev_id, ret);
388 return ret;
389 }
390
391 return 0;
392 }
393
394 static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
395 {
396 struct ath10k *ar = arvif->ar;
397 u32 vdev_param;
398
399 if (value != 0xFFFFFFFF)
400 value = min_t(u32, arvif->ar->hw->wiphy->rts_threshold,
401 ATH10K_RTS_MAX);
402
403 vdev_param = ar->wmi.vdev_param->rts_threshold;
404 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
405 }
406
407 static int ath10k_mac_set_frag(struct ath10k_vif *arvif, u32 value)
408 {
409 struct ath10k *ar = arvif->ar;
410 u32 vdev_param;
411
412 if (value != 0xFFFFFFFF)
413 value = clamp_t(u32, arvif->ar->hw->wiphy->frag_threshold,
414 ATH10K_FRAGMT_THRESHOLD_MIN,
415 ATH10K_FRAGMT_THRESHOLD_MAX);
416
417 vdev_param = ar->wmi.vdev_param->fragmentation_threshold;
418 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
419 }
420
421 static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
422 {
423 int ret;
424
425 lockdep_assert_held(&ar->conf_mutex);
426
427 ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
428 if (ret)
429 return ret;
430
431 ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
432 if (ret)
433 return ret;
434
435 spin_lock_bh(&ar->data_lock);
436 ar->num_peers--;
437 spin_unlock_bh(&ar->data_lock);
438
439 return 0;
440 }
441
442 static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
443 {
444 struct ath10k_peer *peer, *tmp;
445
446 lockdep_assert_held(&ar->conf_mutex);
447
448 spin_lock_bh(&ar->data_lock);
449 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
450 if (peer->vdev_id != vdev_id)
451 continue;
452
453 ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
454 peer->addr, vdev_id);
455
456 list_del(&peer->list);
457 kfree(peer);
458 ar->num_peers--;
459 }
460 spin_unlock_bh(&ar->data_lock);
461 }
462
463 static void ath10k_peer_cleanup_all(struct ath10k *ar)
464 {
465 struct ath10k_peer *peer, *tmp;
466
467 lockdep_assert_held(&ar->conf_mutex);
468
469 spin_lock_bh(&ar->data_lock);
470 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
471 list_del(&peer->list);
472 kfree(peer);
473 }
474 ar->num_peers = 0;
475 spin_unlock_bh(&ar->data_lock);
476 }
477
478 /************************/
479 /* Interface management */
480 /************************/
481
482 void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
483 {
484 struct ath10k *ar = arvif->ar;
485
486 lockdep_assert_held(&ar->data_lock);
487
488 if (!arvif->beacon)
489 return;
490
491 if (!arvif->beacon_buf)
492 dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
493 arvif->beacon->len, DMA_TO_DEVICE);
494
495 dev_kfree_skb_any(arvif->beacon);
496
497 arvif->beacon = NULL;
498 arvif->beacon_sent = false;
499 }
500
501 static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
502 {
503 struct ath10k *ar = arvif->ar;
504
505 lockdep_assert_held(&ar->data_lock);
506
507 ath10k_mac_vif_beacon_free(arvif);
508
509 if (arvif->beacon_buf) {
510 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
511 arvif->beacon_buf, arvif->beacon_paddr);
512 arvif->beacon_buf = NULL;
513 }
514 }
515
516 static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
517 {
518 int ret;
519
520 lockdep_assert_held(&ar->conf_mutex);
521
522 ret = wait_for_completion_timeout(&ar->vdev_setup_done,
523 ATH10K_VDEV_SETUP_TIMEOUT_HZ);
524 if (ret == 0)
525 return -ETIMEDOUT;
526
527 return 0;
528 }
529
530 static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
531 {
532 struct cfg80211_chan_def *chandef = &ar->chandef;
533 struct ieee80211_channel *channel = chandef->chan;
534 struct wmi_vdev_start_request_arg arg = {};
535 int ret = 0;
536
537 lockdep_assert_held(&ar->conf_mutex);
538
539 arg.vdev_id = vdev_id;
540 arg.channel.freq = channel->center_freq;
541 arg.channel.band_center_freq1 = chandef->center_freq1;
542
543 /* TODO setup this dynamically, what in case we
544 don't have any vifs? */
545 arg.channel.mode = chan_to_phymode(chandef);
546 arg.channel.chan_radar =
547 !!(channel->flags & IEEE80211_CHAN_RADAR);
548
549 arg.channel.min_power = 0;
550 arg.channel.max_power = channel->max_power * 2;
551 arg.channel.max_reg_power = channel->max_reg_power * 2;
552 arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
553
554 ret = ath10k_wmi_vdev_start(ar, &arg);
555 if (ret) {
556 ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
557 vdev_id, ret);
558 return ret;
559 }
560
561 ret = ath10k_vdev_setup_sync(ar);
562 if (ret) {
563 ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i: %d\n",
564 vdev_id, ret);
565 return ret;
566 }
567
568 ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
569 if (ret) {
570 ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
571 vdev_id, ret);
572 goto vdev_stop;
573 }
574
575 ar->monitor_vdev_id = vdev_id;
576
577 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
578 ar->monitor_vdev_id);
579 return 0;
580
581 vdev_stop:
582 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
583 if (ret)
584 ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
585 ar->monitor_vdev_id, ret);
586
587 return ret;
588 }
589
590 static int ath10k_monitor_vdev_stop(struct ath10k *ar)
591 {
592 int ret = 0;
593
594 lockdep_assert_held(&ar->conf_mutex);
595
596 ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
597 if (ret)
598 ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
599 ar->monitor_vdev_id, ret);
600
601 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
602 if (ret)
603 ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
604 ar->monitor_vdev_id, ret);
605
606 ret = ath10k_vdev_setup_sync(ar);
607 if (ret)
608 ath10k_warn(ar, "failed to synchronise monitor vdev %i: %d\n",
609 ar->monitor_vdev_id, ret);
610
611 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
612 ar->monitor_vdev_id);
613 return ret;
614 }
615
616 static int ath10k_monitor_vdev_create(struct ath10k *ar)
617 {
618 int bit, ret = 0;
619
620 lockdep_assert_held(&ar->conf_mutex);
621
622 if (ar->free_vdev_map == 0) {
623 ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
624 return -ENOMEM;
625 }
626
627 bit = __ffs64(ar->free_vdev_map);
628
629 ar->monitor_vdev_id = bit;
630
631 ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
632 WMI_VDEV_TYPE_MONITOR,
633 0, ar->mac_addr);
634 if (ret) {
635 ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
636 ar->monitor_vdev_id, ret);
637 return ret;
638 }
639
640 ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
641 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
642 ar->monitor_vdev_id);
643
644 return 0;
645 }
646
647 static int ath10k_monitor_vdev_delete(struct ath10k *ar)
648 {
649 int ret = 0;
650
651 lockdep_assert_held(&ar->conf_mutex);
652
653 ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
654 if (ret) {
655 ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
656 ar->monitor_vdev_id, ret);
657 return ret;
658 }
659
660 ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
661
662 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
663 ar->monitor_vdev_id);
664 return ret;
665 }
666
667 static int ath10k_monitor_start(struct ath10k *ar)
668 {
669 int ret;
670
671 lockdep_assert_held(&ar->conf_mutex);
672
673 ret = ath10k_monitor_vdev_create(ar);
674 if (ret) {
675 ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
676 return ret;
677 }
678
679 ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
680 if (ret) {
681 ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
682 ath10k_monitor_vdev_delete(ar);
683 return ret;
684 }
685
686 ar->monitor_started = true;
687 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
688
689 return 0;
690 }
691
692 static int ath10k_monitor_stop(struct ath10k *ar)
693 {
694 int ret;
695
696 lockdep_assert_held(&ar->conf_mutex);
697
698 ret = ath10k_monitor_vdev_stop(ar);
699 if (ret) {
700 ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
701 return ret;
702 }
703
704 ret = ath10k_monitor_vdev_delete(ar);
705 if (ret) {
706 ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
707 return ret;
708 }
709
710 ar->monitor_started = false;
711 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
712
713 return 0;
714 }
715
716 static int ath10k_monitor_recalc(struct ath10k *ar)
717 {
718 bool should_start;
719
720 lockdep_assert_held(&ar->conf_mutex);
721
722 should_start = ar->monitor ||
723 ar->filter_flags & FIF_PROMISC_IN_BSS ||
724 test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
725
726 ath10k_dbg(ar, ATH10K_DBG_MAC,
727 "mac monitor recalc started? %d should? %d\n",
728 ar->monitor_started, should_start);
729
730 if (should_start == ar->monitor_started)
731 return 0;
732
733 if (should_start)
734 return ath10k_monitor_start(ar);
735
736 return ath10k_monitor_stop(ar);
737 }
738
739 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
740 {
741 struct ath10k *ar = arvif->ar;
742 u32 vdev_param, rts_cts = 0;
743
744 lockdep_assert_held(&ar->conf_mutex);
745
746 vdev_param = ar->wmi.vdev_param->enable_rtscts;
747
748 if (arvif->use_cts_prot || arvif->num_legacy_stations > 0)
749 rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
750
751 if (arvif->num_legacy_stations > 0)
752 rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
753 WMI_RTSCTS_PROFILE);
754
755 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
756 rts_cts);
757 }
758
759 static int ath10k_start_cac(struct ath10k *ar)
760 {
761 int ret;
762
763 lockdep_assert_held(&ar->conf_mutex);
764
765 set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
766
767 ret = ath10k_monitor_recalc(ar);
768 if (ret) {
769 ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
770 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
771 return ret;
772 }
773
774 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
775 ar->monitor_vdev_id);
776
777 return 0;
778 }
779
780 static int ath10k_stop_cac(struct ath10k *ar)
781 {
782 lockdep_assert_held(&ar->conf_mutex);
783
784 /* CAC is not running - do nothing */
785 if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
786 return 0;
787
788 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
789 ath10k_monitor_stop(ar);
790
791 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
792
793 return 0;
794 }
795
796 static void ath10k_recalc_radar_detection(struct ath10k *ar)
797 {
798 int ret;
799
800 lockdep_assert_held(&ar->conf_mutex);
801
802 ath10k_stop_cac(ar);
803
804 if (!ar->radar_enabled)
805 return;
806
807 if (ar->num_started_vdevs > 0)
808 return;
809
810 ret = ath10k_start_cac(ar);
811 if (ret) {
812 /*
813 * Not possible to start CAC on current channel so starting
814 * radiation is not allowed, make this channel DFS_UNAVAILABLE
815 * by indicating that radar was detected.
816 */
817 ath10k_warn(ar, "failed to start CAC: %d\n", ret);
818 ieee80211_radar_detected(ar->hw);
819 }
820 }
821
822 static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
823 {
824 struct ath10k *ar = arvif->ar;
825 struct cfg80211_chan_def *chandef = &ar->chandef;
826 struct wmi_vdev_start_request_arg arg = {};
827 int ret = 0;
828
829 lockdep_assert_held(&ar->conf_mutex);
830
831 reinit_completion(&ar->vdev_setup_done);
832
833 arg.vdev_id = arvif->vdev_id;
834 arg.dtim_period = arvif->dtim_period;
835 arg.bcn_intval = arvif->beacon_interval;
836
837 arg.channel.freq = chandef->chan->center_freq;
838 arg.channel.band_center_freq1 = chandef->center_freq1;
839 arg.channel.mode = chan_to_phymode(chandef);
840
841 arg.channel.min_power = 0;
842 arg.channel.max_power = chandef->chan->max_power * 2;
843 arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
844 arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
845
846 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
847 arg.ssid = arvif->u.ap.ssid;
848 arg.ssid_len = arvif->u.ap.ssid_len;
849 arg.hidden_ssid = arvif->u.ap.hidden_ssid;
850
851 /* For now allow DFS for AP mode */
852 arg.channel.chan_radar =
853 !!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
854 } else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
855 arg.ssid = arvif->vif->bss_conf.ssid;
856 arg.ssid_len = arvif->vif->bss_conf.ssid_len;
857 }
858
859 ath10k_dbg(ar, ATH10K_DBG_MAC,
860 "mac vdev %d start center_freq %d phymode %s\n",
861 arg.vdev_id, arg.channel.freq,
862 ath10k_wmi_phymode_str(arg.channel.mode));
863
864 if (restart)
865 ret = ath10k_wmi_vdev_restart(ar, &arg);
866 else
867 ret = ath10k_wmi_vdev_start(ar, &arg);
868
869 if (ret) {
870 ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
871 arg.vdev_id, ret);
872 return ret;
873 }
874
875 ret = ath10k_vdev_setup_sync(ar);
876 if (ret) {
877 ath10k_warn(ar, "failed to synchronise setup for vdev %i: %d\n",
878 arg.vdev_id, ret);
879 return ret;
880 }
881
882 ar->num_started_vdevs++;
883 ath10k_recalc_radar_detection(ar);
884
885 return ret;
886 }
887
888 static int ath10k_vdev_start(struct ath10k_vif *arvif)
889 {
890 return ath10k_vdev_start_restart(arvif, false);
891 }
892
893 static int ath10k_vdev_restart(struct ath10k_vif *arvif)
894 {
895 return ath10k_vdev_start_restart(arvif, true);
896 }
897
898 static int ath10k_vdev_stop(struct ath10k_vif *arvif)
899 {
900 struct ath10k *ar = arvif->ar;
901 int ret;
902
903 lockdep_assert_held(&ar->conf_mutex);
904
905 reinit_completion(&ar->vdev_setup_done);
906
907 ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
908 if (ret) {
909 ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
910 arvif->vdev_id, ret);
911 return ret;
912 }
913
914 ret = ath10k_vdev_setup_sync(ar);
915 if (ret) {
916 ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
917 arvif->vdev_id, ret);
918 return ret;
919 }
920
921 WARN_ON(ar->num_started_vdevs == 0);
922
923 if (ar->num_started_vdevs != 0) {
924 ar->num_started_vdevs--;
925 ath10k_recalc_radar_detection(ar);
926 }
927
928 return ret;
929 }
930
931 static void ath10k_control_beaconing(struct ath10k_vif *arvif,
932 struct ieee80211_bss_conf *info)
933 {
934 struct ath10k *ar = arvif->ar;
935 int ret = 0;
936
937 lockdep_assert_held(&arvif->ar->conf_mutex);
938
939 if (!info->enable_beacon) {
940 ath10k_vdev_stop(arvif);
941
942 arvif->is_started = false;
943 arvif->is_up = false;
944
945 spin_lock_bh(&arvif->ar->data_lock);
946 ath10k_mac_vif_beacon_free(arvif);
947 spin_unlock_bh(&arvif->ar->data_lock);
948
949 return;
950 }
951
952 arvif->tx_seq_no = 0x1000;
953
954 ret = ath10k_vdev_start(arvif);
955 if (ret)
956 return;
957
958 arvif->aid = 0;
959 ether_addr_copy(arvif->bssid, info->bssid);
960
961 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
962 arvif->bssid);
963 if (ret) {
964 ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
965 arvif->vdev_id, ret);
966 ath10k_vdev_stop(arvif);
967 return;
968 }
969
970 arvif->is_started = true;
971 arvif->is_up = true;
972
973 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
974 }
975
976 static void ath10k_control_ibss(struct ath10k_vif *arvif,
977 struct ieee80211_bss_conf *info,
978 const u8 self_peer[ETH_ALEN])
979 {
980 struct ath10k *ar = arvif->ar;
981 u32 vdev_param;
982 int ret = 0;
983
984 lockdep_assert_held(&arvif->ar->conf_mutex);
985
986 if (!info->ibss_joined) {
987 ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
988 if (ret)
989 ath10k_warn(ar, "failed to delete IBSS self peer %pM for vdev %d: %d\n",
990 self_peer, arvif->vdev_id, ret);
991
992 if (is_zero_ether_addr(arvif->bssid))
993 return;
994
995 memset(arvif->bssid, 0, ETH_ALEN);
996
997 return;
998 }
999
1000 ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
1001 if (ret) {
1002 ath10k_warn(ar, "failed to create IBSS self peer %pM for vdev %d: %d\n",
1003 self_peer, arvif->vdev_id, ret);
1004 return;
1005 }
1006
1007 vdev_param = arvif->ar->wmi.vdev_param->atim_window;
1008 ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1009 ATH10K_DEFAULT_ATIM);
1010 if (ret)
1011 ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1012 arvif->vdev_id, ret);
1013 }
1014
1015 /*
1016 * Review this when mac80211 gains per-interface powersave support.
1017 */
1018 static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1019 {
1020 struct ath10k *ar = arvif->ar;
1021 struct ieee80211_conf *conf = &ar->hw->conf;
1022 enum wmi_sta_powersave_param param;
1023 enum wmi_sta_ps_mode psmode;
1024 int ret;
1025
1026 lockdep_assert_held(&arvif->ar->conf_mutex);
1027
1028 if (arvif->vif->type != NL80211_IFTYPE_STATION)
1029 return 0;
1030
1031 if (conf->flags & IEEE80211_CONF_PS) {
1032 psmode = WMI_STA_PS_MODE_ENABLED;
1033 param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
1034
1035 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1036 conf->dynamic_ps_timeout);
1037 if (ret) {
1038 ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1039 arvif->vdev_id, ret);
1040 return ret;
1041 }
1042 } else {
1043 psmode = WMI_STA_PS_MODE_DISABLED;
1044 }
1045
1046 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
1047 arvif->vdev_id, psmode ? "enable" : "disable");
1048
1049 ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
1050 if (ret) {
1051 ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1052 psmode, arvif->vdev_id, ret);
1053 return ret;
1054 }
1055
1056 return 0;
1057 }
1058
1059 /**********************/
1060 /* Station management */
1061 /**********************/
1062
1063 static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
1064 struct ieee80211_vif *vif)
1065 {
1066 /* Some firmware revisions have unstable STA powersave when listen
1067 * interval is set too high (e.g. 5). The symptoms are firmware doesn't
1068 * generate NullFunc frames properly even if buffered frames have been
1069 * indicated in Beacon TIM. Firmware would seldom wake up to pull
1070 * buffered frames. Often pinging the device from AP would simply fail.
1071 *
1072 * As a workaround set it to 1.
1073 */
1074 if (vif->type == NL80211_IFTYPE_STATION)
1075 return 1;
1076
1077 return ar->hw->conf.listen_interval;
1078 }
1079
1080 static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
1081 struct ieee80211_vif *vif,
1082 struct ieee80211_sta *sta,
1083 struct wmi_peer_assoc_complete_arg *arg)
1084 {
1085 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1086
1087 lockdep_assert_held(&ar->conf_mutex);
1088
1089 ether_addr_copy(arg->addr, sta->addr);
1090 arg->vdev_id = arvif->vdev_id;
1091 arg->peer_aid = sta->aid;
1092 arg->peer_flags |= WMI_PEER_AUTH;
1093 arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
1094 arg->peer_num_spatial_streams = 1;
1095 arg->peer_caps = vif->bss_conf.assoc_capability;
1096 }
1097
1098 static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
1099 struct ieee80211_vif *vif,
1100 struct wmi_peer_assoc_complete_arg *arg)
1101 {
1102 struct ieee80211_bss_conf *info = &vif->bss_conf;
1103 struct cfg80211_bss *bss;
1104 const u8 *rsnie = NULL;
1105 const u8 *wpaie = NULL;
1106
1107 lockdep_assert_held(&ar->conf_mutex);
1108
1109 bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
1110 info->bssid, NULL, 0, 0, 0);
1111 if (bss) {
1112 const struct cfg80211_bss_ies *ies;
1113
1114 rcu_read_lock();
1115 rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
1116
1117 ies = rcu_dereference(bss->ies);
1118
1119 wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
1120 WLAN_OUI_TYPE_MICROSOFT_WPA,
1121 ies->data,
1122 ies->len);
1123 rcu_read_unlock();
1124 cfg80211_put_bss(ar->hw->wiphy, bss);
1125 }
1126
1127 /* FIXME: base on RSN IE/WPA IE is a correct idea? */
1128 if (rsnie || wpaie) {
1129 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
1130 arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
1131 }
1132
1133 if (wpaie) {
1134 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
1135 arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
1136 }
1137 }
1138
1139 static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
1140 struct ieee80211_sta *sta,
1141 struct wmi_peer_assoc_complete_arg *arg)
1142 {
1143 struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
1144 const struct ieee80211_supported_band *sband;
1145 const struct ieee80211_rate *rates;
1146 u32 ratemask;
1147 int i;
1148
1149 lockdep_assert_held(&ar->conf_mutex);
1150
1151 sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
1152 ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
1153 rates = sband->bitrates;
1154
1155 rateset->num_rates = 0;
1156
1157 for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
1158 if (!(ratemask & 1))
1159 continue;
1160
1161 rateset->rates[rateset->num_rates] = rates->hw_value;
1162 rateset->num_rates++;
1163 }
1164 }
1165
1166 static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
1167 struct ieee80211_sta *sta,
1168 struct wmi_peer_assoc_complete_arg *arg)
1169 {
1170 const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
1171 int i, n;
1172 u32 stbc;
1173
1174 lockdep_assert_held(&ar->conf_mutex);
1175
1176 if (!ht_cap->ht_supported)
1177 return;
1178
1179 arg->peer_flags |= WMI_PEER_HT;
1180 arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
1181 ht_cap->ampdu_factor)) - 1;
1182
1183 arg->peer_mpdu_density =
1184 ath10k_parse_mpdudensity(ht_cap->ampdu_density);
1185
1186 arg->peer_ht_caps = ht_cap->cap;
1187 arg->peer_rate_caps |= WMI_RC_HT_FLAG;
1188
1189 if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
1190 arg->peer_flags |= WMI_PEER_LDPC;
1191
1192 if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
1193 arg->peer_flags |= WMI_PEER_40MHZ;
1194 arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
1195 }
1196
1197 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
1198 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
1199
1200 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
1201 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
1202
1203 if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
1204 arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
1205 arg->peer_flags |= WMI_PEER_STBC;
1206 }
1207
1208 if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
1209 stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
1210 stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
1211 stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
1212 arg->peer_rate_caps |= stbc;
1213 arg->peer_flags |= WMI_PEER_STBC;
1214 }
1215
1216 if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
1217 arg->peer_rate_caps |= WMI_RC_TS_FLAG;
1218 else if (ht_cap->mcs.rx_mask[1])
1219 arg->peer_rate_caps |= WMI_RC_DS_FLAG;
1220
1221 for (i = 0, n = 0; i < IEEE80211_HT_MCS_MASK_LEN*8; i++)
1222 if (ht_cap->mcs.rx_mask[i/8] & (1 << i%8))
1223 arg->peer_ht_rates.rates[n++] = i;
1224
1225 /*
1226 * This is a workaround for HT-enabled STAs which break the spec
1227 * and have no HT capabilities RX mask (no HT RX MCS map).
1228 *
1229 * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
1230 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
1231 *
1232 * Firmware asserts if such situation occurs.
1233 */
1234 if (n == 0) {
1235 arg->peer_ht_rates.num_rates = 8;
1236 for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
1237 arg->peer_ht_rates.rates[i] = i;
1238 } else {
1239 arg->peer_ht_rates.num_rates = n;
1240 arg->peer_num_spatial_streams = sta->rx_nss;
1241 }
1242
1243 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
1244 arg->addr,
1245 arg->peer_ht_rates.num_rates,
1246 arg->peer_num_spatial_streams);
1247 }
1248
1249 static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
1250 struct ath10k_vif *arvif,
1251 struct ieee80211_sta *sta)
1252 {
1253 u32 uapsd = 0;
1254 u32 max_sp = 0;
1255 int ret = 0;
1256
1257 lockdep_assert_held(&ar->conf_mutex);
1258
1259 if (sta->wme && sta->uapsd_queues) {
1260 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
1261 sta->uapsd_queues, sta->max_sp);
1262
1263 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
1264 uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
1265 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
1266 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
1267 uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
1268 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
1269 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
1270 uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
1271 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
1272 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
1273 uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
1274 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
1275
1276 if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
1277 max_sp = sta->max_sp;
1278
1279 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
1280 sta->addr,
1281 WMI_AP_PS_PEER_PARAM_UAPSD,
1282 uapsd);
1283 if (ret) {
1284 ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
1285 arvif->vdev_id, ret);
1286 return ret;
1287 }
1288
1289 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
1290 sta->addr,
1291 WMI_AP_PS_PEER_PARAM_MAX_SP,
1292 max_sp);
1293 if (ret) {
1294 ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
1295 arvif->vdev_id, ret);
1296 return ret;
1297 }
1298
1299 /* TODO setup this based on STA listen interval and
1300 beacon interval. Currently we don't know
1301 sta->listen_interval - mac80211 patch required.
1302 Currently use 10 seconds */
1303 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
1304 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
1305 10);
1306 if (ret) {
1307 ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
1308 arvif->vdev_id, ret);
1309 return ret;
1310 }
1311 }
1312
1313 return 0;
1314 }
1315
1316 static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
1317 struct ieee80211_sta *sta,
1318 struct wmi_peer_assoc_complete_arg *arg)
1319 {
1320 const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
1321 u8 ampdu_factor;
1322
1323 if (!vht_cap->vht_supported)
1324 return;
1325
1326 arg->peer_flags |= WMI_PEER_VHT;
1327 arg->peer_vht_caps = vht_cap->cap;
1328
1329 ampdu_factor = (vht_cap->cap &
1330 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
1331 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
1332
1333 /* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
1334 * zero in VHT IE. Using it would result in degraded throughput.
1335 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
1336 * it if VHT max_mpdu is smaller. */
1337 arg->peer_max_mpdu = max(arg->peer_max_mpdu,
1338 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
1339 ampdu_factor)) - 1);
1340
1341 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
1342 arg->peer_flags |= WMI_PEER_80MHZ;
1343
1344 arg->peer_vht_rates.rx_max_rate =
1345 __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
1346 arg->peer_vht_rates.rx_mcs_set =
1347 __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
1348 arg->peer_vht_rates.tx_max_rate =
1349 __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
1350 arg->peer_vht_rates.tx_mcs_set =
1351 __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
1352
1353 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
1354 sta->addr, arg->peer_max_mpdu, arg->peer_flags);
1355 }
1356
1357 static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
1358 struct ieee80211_vif *vif,
1359 struct ieee80211_sta *sta,
1360 struct wmi_peer_assoc_complete_arg *arg)
1361 {
1362 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1363
1364 switch (arvif->vdev_type) {
1365 case WMI_VDEV_TYPE_AP:
1366 if (sta->wme)
1367 arg->peer_flags |= WMI_PEER_QOS;
1368
1369 if (sta->wme && sta->uapsd_queues) {
1370 arg->peer_flags |= WMI_PEER_APSD;
1371 arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
1372 }
1373 break;
1374 case WMI_VDEV_TYPE_STA:
1375 if (vif->bss_conf.qos)
1376 arg->peer_flags |= WMI_PEER_QOS;
1377 break;
1378 default:
1379 break;
1380 }
1381 }
1382
1383 static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
1384 struct ieee80211_vif *vif,
1385 struct ieee80211_sta *sta,
1386 struct wmi_peer_assoc_complete_arg *arg)
1387 {
1388 enum wmi_phy_mode phymode = MODE_UNKNOWN;
1389
1390 switch (ar->hw->conf.chandef.chan->band) {
1391 case IEEE80211_BAND_2GHZ:
1392 if (sta->ht_cap.ht_supported) {
1393 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
1394 phymode = MODE_11NG_HT40;
1395 else
1396 phymode = MODE_11NG_HT20;
1397 } else {
1398 phymode = MODE_11G;
1399 }
1400
1401 break;
1402 case IEEE80211_BAND_5GHZ:
1403 /*
1404 * Check VHT first.
1405 */
1406 if (sta->vht_cap.vht_supported) {
1407 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
1408 phymode = MODE_11AC_VHT80;
1409 else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
1410 phymode = MODE_11AC_VHT40;
1411 else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
1412 phymode = MODE_11AC_VHT20;
1413 } else if (sta->ht_cap.ht_supported) {
1414 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
1415 phymode = MODE_11NA_HT40;
1416 else
1417 phymode = MODE_11NA_HT20;
1418 } else {
1419 phymode = MODE_11A;
1420 }
1421
1422 break;
1423 default:
1424 break;
1425 }
1426
1427 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
1428 sta->addr, ath10k_wmi_phymode_str(phymode));
1429
1430 arg->peer_phymode = phymode;
1431 WARN_ON(phymode == MODE_UNKNOWN);
1432 }
1433
1434 static int ath10k_peer_assoc_prepare(struct ath10k *ar,
1435 struct ieee80211_vif *vif,
1436 struct ieee80211_sta *sta,
1437 struct wmi_peer_assoc_complete_arg *arg)
1438 {
1439 lockdep_assert_held(&ar->conf_mutex);
1440
1441 memset(arg, 0, sizeof(*arg));
1442
1443 ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
1444 ath10k_peer_assoc_h_crypto(ar, vif, arg);
1445 ath10k_peer_assoc_h_rates(ar, sta, arg);
1446 ath10k_peer_assoc_h_ht(ar, sta, arg);
1447 ath10k_peer_assoc_h_vht(ar, sta, arg);
1448 ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
1449 ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
1450
1451 return 0;
1452 }
1453
1454 static const u32 ath10k_smps_map[] = {
1455 [WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
1456 [WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
1457 [WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
1458 [WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
1459 };
1460
1461 static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
1462 const u8 *addr,
1463 const struct ieee80211_sta_ht_cap *ht_cap)
1464 {
1465 int smps;
1466
1467 if (!ht_cap->ht_supported)
1468 return 0;
1469
1470 smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
1471 smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
1472
1473 if (smps >= ARRAY_SIZE(ath10k_smps_map))
1474 return -EINVAL;
1475
1476 return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
1477 WMI_PEER_SMPS_STATE,
1478 ath10k_smps_map[smps]);
1479 }
1480
1481 /* can be called only in mac80211 callbacks due to `key_count` usage */
1482 static void ath10k_bss_assoc(struct ieee80211_hw *hw,
1483 struct ieee80211_vif *vif,
1484 struct ieee80211_bss_conf *bss_conf)
1485 {
1486 struct ath10k *ar = hw->priv;
1487 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1488 struct ieee80211_sta_ht_cap ht_cap;
1489 struct wmi_peer_assoc_complete_arg peer_arg;
1490 struct ieee80211_sta *ap_sta;
1491 int ret;
1492
1493 lockdep_assert_held(&ar->conf_mutex);
1494
1495 rcu_read_lock();
1496
1497 ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
1498 if (!ap_sta) {
1499 ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
1500 bss_conf->bssid, arvif->vdev_id);
1501 rcu_read_unlock();
1502 return;
1503 }
1504
1505 /* ap_sta must be accessed only within rcu section which must be left
1506 * before calling ath10k_setup_peer_smps() which might sleep. */
1507 ht_cap = ap_sta->ht_cap;
1508
1509 ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
1510 if (ret) {
1511 ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
1512 bss_conf->bssid, arvif->vdev_id, ret);
1513 rcu_read_unlock();
1514 return;
1515 }
1516
1517 rcu_read_unlock();
1518
1519 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
1520 if (ret) {
1521 ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
1522 bss_conf->bssid, arvif->vdev_id, ret);
1523 return;
1524 }
1525
1526 ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
1527 if (ret) {
1528 ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
1529 arvif->vdev_id, ret);
1530 return;
1531 }
1532
1533 ath10k_dbg(ar, ATH10K_DBG_MAC,
1534 "mac vdev %d up (associated) bssid %pM aid %d\n",
1535 arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
1536
1537 arvif->aid = bss_conf->aid;
1538 ether_addr_copy(arvif->bssid, bss_conf->bssid);
1539
1540 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
1541 if (ret) {
1542 ath10k_warn(ar, "failed to set vdev %d up: %d\n",
1543 arvif->vdev_id, ret);
1544 return;
1545 }
1546
1547 arvif->is_up = true;
1548 }
1549
1550 /*
1551 * FIXME: flush TIDs
1552 */
1553 static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
1554 struct ieee80211_vif *vif)
1555 {
1556 struct ath10k *ar = hw->priv;
1557 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1558 int ret;
1559
1560 lockdep_assert_held(&ar->conf_mutex);
1561
1562 /*
1563 * For some reason, calling VDEV-DOWN before VDEV-STOP
1564 * makes the FW to send frames via HTT after disassociation.
1565 * No idea why this happens, even though VDEV-DOWN is supposed
1566 * to be analogous to link down, so just stop the VDEV.
1567 */
1568 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d stop (disassociated\n",
1569 arvif->vdev_id);
1570
1571 /* FIXME: check return value */
1572 ret = ath10k_vdev_stop(arvif);
1573
1574 /*
1575 * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and
1576 * report beacons from previously associated network through HTT.
1577 * This in turn would spam mac80211 WARN_ON if we bring down all
1578 * interfaces as it expects there is no rx when no interface is
1579 * running.
1580 */
1581 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d down\n", arvif->vdev_id);
1582
1583 /* FIXME: why don't we print error if wmi call fails? */
1584 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1585
1586 arvif->def_wep_key_idx = 0;
1587
1588 arvif->is_started = false;
1589 arvif->is_up = false;
1590 }
1591
1592 static int ath10k_station_assoc(struct ath10k *ar,
1593 struct ieee80211_vif *vif,
1594 struct ieee80211_sta *sta,
1595 bool reassoc)
1596 {
1597 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1598 struct wmi_peer_assoc_complete_arg peer_arg;
1599 int ret = 0;
1600
1601 lockdep_assert_held(&ar->conf_mutex);
1602
1603 ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
1604 if (ret) {
1605 ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
1606 sta->addr, arvif->vdev_id, ret);
1607 return ret;
1608 }
1609
1610 peer_arg.peer_reassoc = reassoc;
1611 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
1612 if (ret) {
1613 ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
1614 sta->addr, arvif->vdev_id, ret);
1615 return ret;
1616 }
1617
1618 ret = ath10k_setup_peer_smps(ar, arvif, sta->addr, &sta->ht_cap);
1619 if (ret) {
1620 ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
1621 arvif->vdev_id, ret);
1622 return ret;
1623 }
1624
1625 if (!sta->wme && !reassoc) {
1626 arvif->num_legacy_stations++;
1627 ret = ath10k_recalc_rtscts_prot(arvif);
1628 if (ret) {
1629 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
1630 arvif->vdev_id, ret);
1631 return ret;
1632 }
1633 }
1634
1635 ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
1636 if (ret) {
1637 ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
1638 arvif->vdev_id, ret);
1639 return ret;
1640 }
1641
1642 ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
1643 if (ret) {
1644 ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
1645 sta->addr, arvif->vdev_id, ret);
1646 return ret;
1647 }
1648
1649 return ret;
1650 }
1651
1652 static int ath10k_station_disassoc(struct ath10k *ar,
1653 struct ieee80211_vif *vif,
1654 struct ieee80211_sta *sta)
1655 {
1656 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1657 int ret = 0;
1658
1659 lockdep_assert_held(&ar->conf_mutex);
1660
1661 if (!sta->wme) {
1662 arvif->num_legacy_stations--;
1663 ret = ath10k_recalc_rtscts_prot(arvif);
1664 if (ret) {
1665 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
1666 arvif->vdev_id, ret);
1667 return ret;
1668 }
1669 }
1670
1671 ret = ath10k_clear_peer_keys(arvif, sta->addr);
1672 if (ret) {
1673 ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
1674 arvif->vdev_id, ret);
1675 return ret;
1676 }
1677
1678 return ret;
1679 }
1680
1681 /**************/
1682 /* Regulatory */
1683 /**************/
1684
1685 static int ath10k_update_channel_list(struct ath10k *ar)
1686 {
1687 struct ieee80211_hw *hw = ar->hw;
1688 struct ieee80211_supported_band **bands;
1689 enum ieee80211_band band;
1690 struct ieee80211_channel *channel;
1691 struct wmi_scan_chan_list_arg arg = {0};
1692 struct wmi_channel_arg *ch;
1693 bool passive;
1694 int len;
1695 int ret;
1696 int i;
1697
1698 lockdep_assert_held(&ar->conf_mutex);
1699
1700 bands = hw->wiphy->bands;
1701 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1702 if (!bands[band])
1703 continue;
1704
1705 for (i = 0; i < bands[band]->n_channels; i++) {
1706 if (bands[band]->channels[i].flags &
1707 IEEE80211_CHAN_DISABLED)
1708 continue;
1709
1710 arg.n_channels++;
1711 }
1712 }
1713
1714 len = sizeof(struct wmi_channel_arg) * arg.n_channels;
1715 arg.channels = kzalloc(len, GFP_KERNEL);
1716 if (!arg.channels)
1717 return -ENOMEM;
1718
1719 ch = arg.channels;
1720 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1721 if (!bands[band])
1722 continue;
1723
1724 for (i = 0; i < bands[band]->n_channels; i++) {
1725 channel = &bands[band]->channels[i];
1726
1727 if (channel->flags & IEEE80211_CHAN_DISABLED)
1728 continue;
1729
1730 ch->allow_ht = true;
1731
1732 /* FIXME: when should we really allow VHT? */
1733 ch->allow_vht = true;
1734
1735 ch->allow_ibss =
1736 !(channel->flags & IEEE80211_CHAN_NO_IR);
1737
1738 ch->ht40plus =
1739 !(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
1740
1741 ch->chan_radar =
1742 !!(channel->flags & IEEE80211_CHAN_RADAR);
1743
1744 passive = channel->flags & IEEE80211_CHAN_NO_IR;
1745 ch->passive = passive;
1746
1747 ch->freq = channel->center_freq;
1748 ch->band_center_freq1 = channel->center_freq;
1749 ch->min_power = 0;
1750 ch->max_power = channel->max_power * 2;
1751 ch->max_reg_power = channel->max_reg_power * 2;
1752 ch->max_antenna_gain = channel->max_antenna_gain * 2;
1753 ch->reg_class_id = 0; /* FIXME */
1754
1755 /* FIXME: why use only legacy modes, why not any
1756 * HT/VHT modes? Would that even make any
1757 * difference? */
1758 if (channel->band == IEEE80211_BAND_2GHZ)
1759 ch->mode = MODE_11G;
1760 else
1761 ch->mode = MODE_11A;
1762
1763 if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
1764 continue;
1765
1766 ath10k_dbg(ar, ATH10K_DBG_WMI,
1767 "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
1768 ch - arg.channels, arg.n_channels,
1769 ch->freq, ch->max_power, ch->max_reg_power,
1770 ch->max_antenna_gain, ch->mode);
1771
1772 ch++;
1773 }
1774 }
1775
1776 ret = ath10k_wmi_scan_chan_list(ar, &arg);
1777 kfree(arg.channels);
1778
1779 return ret;
1780 }
1781
1782 static enum wmi_dfs_region
1783 ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
1784 {
1785 switch (dfs_region) {
1786 case NL80211_DFS_UNSET:
1787 return WMI_UNINIT_DFS_DOMAIN;
1788 case NL80211_DFS_FCC:
1789 return WMI_FCC_DFS_DOMAIN;
1790 case NL80211_DFS_ETSI:
1791 return WMI_ETSI_DFS_DOMAIN;
1792 case NL80211_DFS_JP:
1793 return WMI_MKK4_DFS_DOMAIN;
1794 }
1795 return WMI_UNINIT_DFS_DOMAIN;
1796 }
1797
1798 static void ath10k_regd_update(struct ath10k *ar)
1799 {
1800 struct reg_dmn_pair_mapping *regpair;
1801 int ret;
1802 enum wmi_dfs_region wmi_dfs_reg;
1803 enum nl80211_dfs_regions nl_dfs_reg;
1804
1805 lockdep_assert_held(&ar->conf_mutex);
1806
1807 ret = ath10k_update_channel_list(ar);
1808 if (ret)
1809 ath10k_warn(ar, "failed to update channel list: %d\n", ret);
1810
1811 regpair = ar->ath_common.regulatory.regpair;
1812
1813 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
1814 nl_dfs_reg = ar->dfs_detector->region;
1815 wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
1816 } else {
1817 wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
1818 }
1819
1820 /* Target allows setting up per-band regdomain but ath_common provides
1821 * a combined one only */
1822 ret = ath10k_wmi_pdev_set_regdomain(ar,
1823 regpair->reg_domain,
1824 regpair->reg_domain, /* 2ghz */
1825 regpair->reg_domain, /* 5ghz */
1826 regpair->reg_2ghz_ctl,
1827 regpair->reg_5ghz_ctl,
1828 wmi_dfs_reg);
1829 if (ret)
1830 ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
1831 }
1832
1833 static void ath10k_reg_notifier(struct wiphy *wiphy,
1834 struct regulatory_request *request)
1835 {
1836 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
1837 struct ath10k *ar = hw->priv;
1838 bool result;
1839
1840 ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
1841
1842 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
1843 ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
1844 request->dfs_region);
1845 result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
1846 request->dfs_region);
1847 if (!result)
1848 ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
1849 request->dfs_region);
1850 }
1851
1852 mutex_lock(&ar->conf_mutex);
1853 if (ar->state == ATH10K_STATE_ON)
1854 ath10k_regd_update(ar);
1855 mutex_unlock(&ar->conf_mutex);
1856 }
1857
1858 /***************/
1859 /* TX handlers */
1860 /***************/
1861
1862 static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
1863 {
1864 if (ieee80211_is_mgmt(hdr->frame_control))
1865 return HTT_DATA_TX_EXT_TID_MGMT;
1866
1867 if (!ieee80211_is_data_qos(hdr->frame_control))
1868 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
1869
1870 if (!is_unicast_ether_addr(ieee80211_get_DA(hdr)))
1871 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
1872
1873 return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
1874 }
1875
1876 static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar, struct ieee80211_vif *vif)
1877 {
1878 if (vif)
1879 return ath10k_vif_to_arvif(vif)->vdev_id;
1880
1881 if (ar->monitor_started)
1882 return ar->monitor_vdev_id;
1883
1884 ath10k_warn(ar, "failed to resolve vdev id\n");
1885 return 0;
1886 }
1887
1888 /* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
1889 * Control in the header.
1890 */
1891 static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
1892 {
1893 struct ieee80211_hdr *hdr = (void *)skb->data;
1894 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
1895 u8 *qos_ctl;
1896
1897 if (!ieee80211_is_data_qos(hdr->frame_control))
1898 return;
1899
1900 qos_ctl = ieee80211_get_qos_ctl(hdr);
1901 memmove(skb->data + IEEE80211_QOS_CTL_LEN,
1902 skb->data, (void *)qos_ctl - (void *)skb->data);
1903 skb_pull(skb, IEEE80211_QOS_CTL_LEN);
1904
1905 /* Fw/Hw generates a corrupted QoS Control Field for QoS NullFunc
1906 * frames. Powersave is handled by the fw/hw so QoS NyllFunc frames are
1907 * used only for CQM purposes (e.g. hostapd station keepalive ping) so
1908 * it is safe to downgrade to NullFunc.
1909 */
1910 if (ieee80211_is_qos_nullfunc(hdr->frame_control)) {
1911 hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
1912 cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
1913 }
1914 }
1915
1916 static void ath10k_tx_wep_key_work(struct work_struct *work)
1917 {
1918 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
1919 wep_key_work);
1920 struct ath10k *ar = arvif->ar;
1921 int ret, keyidx = arvif->def_wep_key_newidx;
1922
1923 mutex_lock(&arvif->ar->conf_mutex);
1924
1925 if (arvif->ar->state != ATH10K_STATE_ON)
1926 goto unlock;
1927
1928 if (arvif->def_wep_key_idx == keyidx)
1929 goto unlock;
1930
1931 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
1932 arvif->vdev_id, keyidx);
1933
1934 ret = ath10k_wmi_vdev_set_param(arvif->ar,
1935 arvif->vdev_id,
1936 arvif->ar->wmi.vdev_param->def_keyid,
1937 keyidx);
1938 if (ret) {
1939 ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
1940 arvif->vdev_id,
1941 ret);
1942 goto unlock;
1943 }
1944
1945 arvif->def_wep_key_idx = keyidx;
1946
1947 unlock:
1948 mutex_unlock(&arvif->ar->conf_mutex);
1949 }
1950
1951 static void ath10k_tx_h_update_wep_key(struct ieee80211_vif *vif,
1952 struct ieee80211_key_conf *key,
1953 struct sk_buff *skb)
1954 {
1955 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1956 struct ath10k *ar = arvif->ar;
1957 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1958
1959 if (!ieee80211_has_protected(hdr->frame_control))
1960 return;
1961
1962 if (!key)
1963 return;
1964
1965 if (key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
1966 key->cipher != WLAN_CIPHER_SUITE_WEP104)
1967 return;
1968
1969 if (key->keyidx == arvif->def_wep_key_idx)
1970 return;
1971
1972 /* FIXME: Most likely a few frames will be TXed with an old key. Simply
1973 * queueing frames until key index is updated is not an option because
1974 * sk_buff may need more processing to be done, e.g. offchannel */
1975 arvif->def_wep_key_newidx = key->keyidx;
1976 ieee80211_queue_work(ar->hw, &arvif->wep_key_work);
1977 }
1978
1979 static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
1980 struct ieee80211_vif *vif,
1981 struct sk_buff *skb)
1982 {
1983 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1984 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1985
1986 /* This is case only for P2P_GO */
1987 if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
1988 arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
1989 return;
1990
1991 if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
1992 spin_lock_bh(&ar->data_lock);
1993 if (arvif->u.ap.noa_data)
1994 if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
1995 GFP_ATOMIC))
1996 memcpy(skb_put(skb, arvif->u.ap.noa_len),
1997 arvif->u.ap.noa_data,
1998 arvif->u.ap.noa_len);
1999 spin_unlock_bh(&ar->data_lock);
2000 }
2001 }
2002
2003 static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
2004 {
2005 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
2006 int ret = 0;
2007
2008 if (ar->htt.target_version_major >= 3) {
2009 /* Since HTT 3.0 there is no separate mgmt tx command */
2010 ret = ath10k_htt_tx(&ar->htt, skb);
2011 goto exit;
2012 }
2013
2014 if (ieee80211_is_mgmt(hdr->frame_control)) {
2015 if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
2016 ar->fw_features)) {
2017 if (skb_queue_len(&ar->wmi_mgmt_tx_queue) >=
2018 ATH10K_MAX_NUM_MGMT_PENDING) {
2019 ath10k_warn(ar, "reached WMI management transmit queue limit\n");
2020 ret = -EBUSY;
2021 goto exit;
2022 }
2023
2024 skb_queue_tail(&ar->wmi_mgmt_tx_queue, skb);
2025 ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
2026 } else {
2027 ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
2028 }
2029 } else if (!test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
2030 ar->fw_features) &&
2031 ieee80211_is_nullfunc(hdr->frame_control)) {
2032 /* FW does not report tx status properly for NullFunc frames
2033 * unless they are sent through mgmt tx path. mac80211 sends
2034 * those frames when it detects link/beacon loss and depends
2035 * on the tx status to be correct. */
2036 ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
2037 } else {
2038 ret = ath10k_htt_tx(&ar->htt, skb);
2039 }
2040
2041 exit:
2042 if (ret) {
2043 ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
2044 ret);
2045 ieee80211_free_txskb(ar->hw, skb);
2046 }
2047 }
2048
2049 void ath10k_offchan_tx_purge(struct ath10k *ar)
2050 {
2051 struct sk_buff *skb;
2052
2053 for (;;) {
2054 skb = skb_dequeue(&ar->offchan_tx_queue);
2055 if (!skb)
2056 break;
2057
2058 ieee80211_free_txskb(ar->hw, skb);
2059 }
2060 }
2061
2062 void ath10k_offchan_tx_work(struct work_struct *work)
2063 {
2064 struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
2065 struct ath10k_peer *peer;
2066 struct ieee80211_hdr *hdr;
2067 struct sk_buff *skb;
2068 const u8 *peer_addr;
2069 int vdev_id;
2070 int ret;
2071
2072 /* FW requirement: We must create a peer before FW will send out
2073 * an offchannel frame. Otherwise the frame will be stuck and
2074 * never transmitted. We delete the peer upon tx completion.
2075 * It is unlikely that a peer for offchannel tx will already be
2076 * present. However it may be in some rare cases so account for that.
2077 * Otherwise we might remove a legitimate peer and break stuff. */
2078
2079 for (;;) {
2080 skb = skb_dequeue(&ar->offchan_tx_queue);
2081 if (!skb)
2082 break;
2083
2084 mutex_lock(&ar->conf_mutex);
2085
2086 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %p\n",
2087 skb);
2088
2089 hdr = (struct ieee80211_hdr *)skb->data;
2090 peer_addr = ieee80211_get_DA(hdr);
2091 vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
2092
2093 spin_lock_bh(&ar->data_lock);
2094 peer = ath10k_peer_find(ar, vdev_id, peer_addr);
2095 spin_unlock_bh(&ar->data_lock);
2096
2097 if (peer)
2098 /* FIXME: should this use ath10k_warn()? */
2099 ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
2100 peer_addr, vdev_id);
2101
2102 if (!peer) {
2103 ret = ath10k_peer_create(ar, vdev_id, peer_addr);
2104 if (ret)
2105 ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
2106 peer_addr, vdev_id, ret);
2107 }
2108
2109 spin_lock_bh(&ar->data_lock);
2110 reinit_completion(&ar->offchan_tx_completed);
2111 ar->offchan_tx_skb = skb;
2112 spin_unlock_bh(&ar->data_lock);
2113
2114 ath10k_tx_htt(ar, skb);
2115
2116 ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
2117 3 * HZ);
2118 if (ret <= 0)
2119 ath10k_warn(ar, "timed out waiting for offchannel skb %p\n",
2120 skb);
2121
2122 if (!peer) {
2123 ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
2124 if (ret)
2125 ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
2126 peer_addr, vdev_id, ret);
2127 }
2128
2129 mutex_unlock(&ar->conf_mutex);
2130 }
2131 }
2132
2133 void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
2134 {
2135 struct sk_buff *skb;
2136
2137 for (;;) {
2138 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
2139 if (!skb)
2140 break;
2141
2142 ieee80211_free_txskb(ar->hw, skb);
2143 }
2144 }
2145
2146 void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
2147 {
2148 struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
2149 struct sk_buff *skb;
2150 int ret;
2151
2152 for (;;) {
2153 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
2154 if (!skb)
2155 break;
2156
2157 ret = ath10k_wmi_mgmt_tx(ar, skb);
2158 if (ret) {
2159 ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
2160 ret);
2161 ieee80211_free_txskb(ar->hw, skb);
2162 }
2163 }
2164 }
2165
2166 /************/
2167 /* Scanning */
2168 /************/
2169
2170 void __ath10k_scan_finish(struct ath10k *ar)
2171 {
2172 lockdep_assert_held(&ar->data_lock);
2173
2174 switch (ar->scan.state) {
2175 case ATH10K_SCAN_IDLE:
2176 break;
2177 case ATH10K_SCAN_RUNNING:
2178 case ATH10K_SCAN_ABORTING:
2179 if (ar->scan.is_roc)
2180 ieee80211_remain_on_channel_expired(ar->hw);
2181 else
2182 ieee80211_scan_completed(ar->hw,
2183 (ar->scan.state ==
2184 ATH10K_SCAN_ABORTING));
2185 /* fall through */
2186 case ATH10K_SCAN_STARTING:
2187 ar->scan.state = ATH10K_SCAN_IDLE;
2188 ar->scan_channel = NULL;
2189 ath10k_offchan_tx_purge(ar);
2190 cancel_delayed_work(&ar->scan.timeout);
2191 complete_all(&ar->scan.completed);
2192 break;
2193 }
2194 }
2195
2196 void ath10k_scan_finish(struct ath10k *ar)
2197 {
2198 spin_lock_bh(&ar->data_lock);
2199 __ath10k_scan_finish(ar);
2200 spin_unlock_bh(&ar->data_lock);
2201 }
2202
2203 static int ath10k_scan_stop(struct ath10k *ar)
2204 {
2205 struct wmi_stop_scan_arg arg = {
2206 .req_id = 1, /* FIXME */
2207 .req_type = WMI_SCAN_STOP_ONE,
2208 .u.scan_id = ATH10K_SCAN_ID,
2209 };
2210 int ret;
2211
2212 lockdep_assert_held(&ar->conf_mutex);
2213
2214 ret = ath10k_wmi_stop_scan(ar, &arg);
2215 if (ret) {
2216 ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
2217 goto out;
2218 }
2219
2220 ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
2221 if (ret == 0) {
2222 ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
2223 ret = -ETIMEDOUT;
2224 } else if (ret > 0) {
2225 ret = 0;
2226 }
2227
2228 out:
2229 /* Scan state should be updated upon scan completion but in case
2230 * firmware fails to deliver the event (for whatever reason) it is
2231 * desired to clean up scan state anyway. Firmware may have just
2232 * dropped the scan completion event delivery due to transport pipe
2233 * being overflown with data and/or it can recover on its own before
2234 * next scan request is submitted.
2235 */
2236 spin_lock_bh(&ar->data_lock);
2237 if (ar->scan.state != ATH10K_SCAN_IDLE)
2238 __ath10k_scan_finish(ar);
2239 spin_unlock_bh(&ar->data_lock);
2240
2241 return ret;
2242 }
2243
2244 static void ath10k_scan_abort(struct ath10k *ar)
2245 {
2246 int ret;
2247
2248 lockdep_assert_held(&ar->conf_mutex);
2249
2250 spin_lock_bh(&ar->data_lock);
2251
2252 switch (ar->scan.state) {
2253 case ATH10K_SCAN_IDLE:
2254 /* This can happen if timeout worker kicked in and called
2255 * abortion while scan completion was being processed.
2256 */
2257 break;
2258 case ATH10K_SCAN_STARTING:
2259 case ATH10K_SCAN_ABORTING:
2260 ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
2261 ath10k_scan_state_str(ar->scan.state),
2262 ar->scan.state);
2263 break;
2264 case ATH10K_SCAN_RUNNING:
2265 ar->scan.state = ATH10K_SCAN_ABORTING;
2266 spin_unlock_bh(&ar->data_lock);
2267
2268 ret = ath10k_scan_stop(ar);
2269 if (ret)
2270 ath10k_warn(ar, "failed to abort scan: %d\n", ret);
2271
2272 spin_lock_bh(&ar->data_lock);
2273 break;
2274 }
2275
2276 spin_unlock_bh(&ar->data_lock);
2277 }
2278
2279 void ath10k_scan_timeout_work(struct work_struct *work)
2280 {
2281 struct ath10k *ar = container_of(work, struct ath10k,
2282 scan.timeout.work);
2283
2284 mutex_lock(&ar->conf_mutex);
2285 ath10k_scan_abort(ar);
2286 mutex_unlock(&ar->conf_mutex);
2287 }
2288
2289 static int ath10k_start_scan(struct ath10k *ar,
2290 const struct wmi_start_scan_arg *arg)
2291 {
2292 int ret;
2293
2294 lockdep_assert_held(&ar->conf_mutex);
2295
2296 ret = ath10k_wmi_start_scan(ar, arg);
2297 if (ret)
2298 return ret;
2299
2300 ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
2301 if (ret == 0) {
2302 ret = ath10k_scan_stop(ar);
2303 if (ret)
2304 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
2305
2306 return -ETIMEDOUT;
2307 }
2308
2309 /* Add a 200ms margin to account for event/command processing */
2310 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
2311 msecs_to_jiffies(arg->max_scan_time+200));
2312 return 0;
2313 }
2314
2315 /**********************/
2316 /* mac80211 callbacks */
2317 /**********************/
2318
2319 static void ath10k_tx(struct ieee80211_hw *hw,
2320 struct ieee80211_tx_control *control,
2321 struct sk_buff *skb)
2322 {
2323 struct ath10k *ar = hw->priv;
2324 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2325 struct ieee80211_vif *vif = info->control.vif;
2326 struct ieee80211_key_conf *key = info->control.hw_key;
2327 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
2328
2329 /* We should disable CCK RATE due to P2P */
2330 if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
2331 ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
2332
2333 ATH10K_SKB_CB(skb)->htt.is_offchan = false;
2334 ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
2335 ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
2336
2337 /* it makes no sense to process injected frames like that */
2338 if (vif && vif->type != NL80211_IFTYPE_MONITOR) {
2339 ath10k_tx_h_nwifi(hw, skb);
2340 ath10k_tx_h_update_wep_key(vif, key, skb);
2341 ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
2342 ath10k_tx_h_seq_no(vif, skb);
2343 }
2344
2345 if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
2346 spin_lock_bh(&ar->data_lock);
2347 ATH10K_SKB_CB(skb)->htt.is_offchan = true;
2348 ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
2349 spin_unlock_bh(&ar->data_lock);
2350
2351 ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %p\n",
2352 skb);
2353
2354 skb_queue_tail(&ar->offchan_tx_queue, skb);
2355 ieee80211_queue_work(hw, &ar->offchan_tx_work);
2356 return;
2357 }
2358
2359 ath10k_tx_htt(ar, skb);
2360 }
2361
2362 /* Must not be called with conf_mutex held as workers can use that also. */
2363 static void ath10k_drain_tx(struct ath10k *ar)
2364 {
2365 /* make sure rcu-protected mac80211 tx path itself is drained */
2366 synchronize_net();
2367
2368 ath10k_offchan_tx_purge(ar);
2369 ath10k_mgmt_over_wmi_tx_purge(ar);
2370
2371 cancel_work_sync(&ar->offchan_tx_work);
2372 cancel_work_sync(&ar->wmi_mgmt_tx_work);
2373 }
2374
2375 void ath10k_halt(struct ath10k *ar)
2376 {
2377 struct ath10k_vif *arvif;
2378
2379 lockdep_assert_held(&ar->conf_mutex);
2380
2381 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
2382 ar->filter_flags = 0;
2383 ar->monitor = false;
2384
2385 if (ar->monitor_started)
2386 ath10k_monitor_stop(ar);
2387
2388 ar->monitor_started = false;
2389
2390 ath10k_scan_finish(ar);
2391 ath10k_peer_cleanup_all(ar);
2392 ath10k_core_stop(ar);
2393 ath10k_hif_power_down(ar);
2394
2395 spin_lock_bh(&ar->data_lock);
2396 list_for_each_entry(arvif, &ar->arvifs, list)
2397 ath10k_mac_vif_beacon_cleanup(arvif);
2398 spin_unlock_bh(&ar->data_lock);
2399 }
2400
2401 static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
2402 {
2403 struct ath10k *ar = hw->priv;
2404
2405 mutex_lock(&ar->conf_mutex);
2406
2407 if (ar->cfg_tx_chainmask) {
2408 *tx_ant = ar->cfg_tx_chainmask;
2409 *rx_ant = ar->cfg_rx_chainmask;
2410 } else {
2411 *tx_ant = ar->supp_tx_chainmask;
2412 *rx_ant = ar->supp_rx_chainmask;
2413 }
2414
2415 mutex_unlock(&ar->conf_mutex);
2416
2417 return 0;
2418 }
2419
2420 static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
2421 {
2422 int ret;
2423
2424 lockdep_assert_held(&ar->conf_mutex);
2425
2426 ar->cfg_tx_chainmask = tx_ant;
2427 ar->cfg_rx_chainmask = rx_ant;
2428
2429 if ((ar->state != ATH10K_STATE_ON) &&
2430 (ar->state != ATH10K_STATE_RESTARTED))
2431 return 0;
2432
2433 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
2434 tx_ant);
2435 if (ret) {
2436 ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
2437 ret, tx_ant);
2438 return ret;
2439 }
2440
2441 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
2442 rx_ant);
2443 if (ret) {
2444 ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
2445 ret, rx_ant);
2446 return ret;
2447 }
2448
2449 return 0;
2450 }
2451
2452 static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
2453 {
2454 struct ath10k *ar = hw->priv;
2455 int ret;
2456
2457 mutex_lock(&ar->conf_mutex);
2458 ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
2459 mutex_unlock(&ar->conf_mutex);
2460 return ret;
2461 }
2462
2463 static int ath10k_start(struct ieee80211_hw *hw)
2464 {
2465 struct ath10k *ar = hw->priv;
2466 int ret = 0;
2467
2468 /*
2469 * This makes sense only when restarting hw. It is harmless to call
2470 * uncoditionally. This is necessary to make sure no HTT/WMI tx
2471 * commands will be submitted while restarting.
2472 */
2473 ath10k_drain_tx(ar);
2474
2475 mutex_lock(&ar->conf_mutex);
2476
2477 switch (ar->state) {
2478 case ATH10K_STATE_OFF:
2479 ar->state = ATH10K_STATE_ON;
2480 break;
2481 case ATH10K_STATE_RESTARTING:
2482 ath10k_halt(ar);
2483 ar->state = ATH10K_STATE_RESTARTED;
2484 break;
2485 case ATH10K_STATE_ON:
2486 case ATH10K_STATE_RESTARTED:
2487 case ATH10K_STATE_WEDGED:
2488 WARN_ON(1);
2489 ret = -EINVAL;
2490 goto err;
2491 case ATH10K_STATE_UTF:
2492 ret = -EBUSY;
2493 goto err;
2494 }
2495
2496 ret = ath10k_hif_power_up(ar);
2497 if (ret) {
2498 ath10k_err(ar, "Could not init hif: %d\n", ret);
2499 goto err_off;
2500 }
2501
2502 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
2503 if (ret) {
2504 ath10k_err(ar, "Could not init core: %d\n", ret);
2505 goto err_power_down;
2506 }
2507
2508 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
2509 if (ret) {
2510 ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
2511 goto err_core_stop;
2512 }
2513
2514 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
2515 if (ret) {
2516 ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
2517 goto err_core_stop;
2518 }
2519
2520 if (ar->cfg_tx_chainmask)
2521 __ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
2522 ar->cfg_rx_chainmask);
2523
2524 /*
2525 * By default FW set ARP frames ac to voice (6). In that case ARP
2526 * exchange is not working properly for UAPSD enabled AP. ARP requests
2527 * which arrives with access category 0 are processed by network stack
2528 * and send back with access category 0, but FW changes access category
2529 * to 6. Set ARP frames access category to best effort (0) solves
2530 * this problem.
2531 */
2532
2533 ret = ath10k_wmi_pdev_set_param(ar,
2534 ar->wmi.pdev_param->arp_ac_override, 0);
2535 if (ret) {
2536 ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
2537 ret);
2538 goto err_core_stop;
2539 }
2540
2541 ar->num_started_vdevs = 0;
2542 ath10k_regd_update(ar);
2543
2544 ath10k_spectral_start(ar);
2545
2546 mutex_unlock(&ar->conf_mutex);
2547 return 0;
2548
2549 err_core_stop:
2550 ath10k_core_stop(ar);
2551
2552 err_power_down:
2553 ath10k_hif_power_down(ar);
2554
2555 err_off:
2556 ar->state = ATH10K_STATE_OFF;
2557
2558 err:
2559 mutex_unlock(&ar->conf_mutex);
2560 return ret;
2561 }
2562
2563 static void ath10k_stop(struct ieee80211_hw *hw)
2564 {
2565 struct ath10k *ar = hw->priv;
2566
2567 ath10k_drain_tx(ar);
2568
2569 mutex_lock(&ar->conf_mutex);
2570 if (ar->state != ATH10K_STATE_OFF) {
2571 ath10k_halt(ar);
2572 ar->state = ATH10K_STATE_OFF;
2573 }
2574 mutex_unlock(&ar->conf_mutex);
2575
2576 cancel_delayed_work_sync(&ar->scan.timeout);
2577 cancel_work_sync(&ar->restart_work);
2578 }
2579
2580 static int ath10k_config_ps(struct ath10k *ar)
2581 {
2582 struct ath10k_vif *arvif;
2583 int ret = 0;
2584
2585 lockdep_assert_held(&ar->conf_mutex);
2586
2587 list_for_each_entry(arvif, &ar->arvifs, list) {
2588 ret = ath10k_mac_vif_setup_ps(arvif);
2589 if (ret) {
2590 ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
2591 break;
2592 }
2593 }
2594
2595 return ret;
2596 }
2597
2598 static const char *chandef_get_width(enum nl80211_chan_width width)
2599 {
2600 switch (width) {
2601 case NL80211_CHAN_WIDTH_20_NOHT:
2602 return "20 (noht)";
2603 case NL80211_CHAN_WIDTH_20:
2604 return "20";
2605 case NL80211_CHAN_WIDTH_40:
2606 return "40";
2607 case NL80211_CHAN_WIDTH_80:
2608 return "80";
2609 case NL80211_CHAN_WIDTH_80P80:
2610 return "80+80";
2611 case NL80211_CHAN_WIDTH_160:
2612 return "160";
2613 case NL80211_CHAN_WIDTH_5:
2614 return "5";
2615 case NL80211_CHAN_WIDTH_10:
2616 return "10";
2617 }
2618 return "?";
2619 }
2620
2621 static void ath10k_config_chan(struct ath10k *ar)
2622 {
2623 struct ath10k_vif *arvif;
2624 int ret;
2625
2626 lockdep_assert_held(&ar->conf_mutex);
2627
2628 ath10k_dbg(ar, ATH10K_DBG_MAC,
2629 "mac config channel to %dMHz (cf1 %dMHz cf2 %dMHz width %s)\n",
2630 ar->chandef.chan->center_freq,
2631 ar->chandef.center_freq1,
2632 ar->chandef.center_freq2,
2633 chandef_get_width(ar->chandef.width));
2634
2635 /* First stop monitor interface. Some FW versions crash if there's a
2636 * lone monitor interface. */
2637 if (ar->monitor_started)
2638 ath10k_monitor_stop(ar);
2639
2640 list_for_each_entry(arvif, &ar->arvifs, list) {
2641 if (!arvif->is_started)
2642 continue;
2643
2644 if (!arvif->is_up)
2645 continue;
2646
2647 if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
2648 continue;
2649
2650 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2651 if (ret) {
2652 ath10k_warn(ar, "failed to down vdev %d: %d\n",
2653 arvif->vdev_id, ret);
2654 continue;
2655 }
2656 }
2657
2658 /* all vdevs are downed now - attempt to restart and re-up them */
2659
2660 list_for_each_entry(arvif, &ar->arvifs, list) {
2661 if (!arvif->is_started)
2662 continue;
2663
2664 if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
2665 continue;
2666
2667 ret = ath10k_vdev_restart(arvif);
2668 if (ret) {
2669 ath10k_warn(ar, "failed to restart vdev %d: %d\n",
2670 arvif->vdev_id, ret);
2671 continue;
2672 }
2673
2674 if (!arvif->is_up)
2675 continue;
2676
2677 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
2678 arvif->bssid);
2679 if (ret) {
2680 ath10k_warn(ar, "failed to bring vdev up %d: %d\n",
2681 arvif->vdev_id, ret);
2682 continue;
2683 }
2684 }
2685
2686 ath10k_monitor_recalc(ar);
2687 }
2688
2689 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
2690 {
2691 struct ath10k *ar = hw->priv;
2692 struct ieee80211_conf *conf = &hw->conf;
2693 int ret = 0;
2694 u32 param;
2695
2696 mutex_lock(&ar->conf_mutex);
2697
2698 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
2699 ath10k_dbg(ar, ATH10K_DBG_MAC,
2700 "mac config channel %dMHz flags 0x%x radar %d\n",
2701 conf->chandef.chan->center_freq,
2702 conf->chandef.chan->flags,
2703 conf->radar_enabled);
2704
2705 spin_lock_bh(&ar->data_lock);
2706 ar->rx_channel = conf->chandef.chan;
2707 spin_unlock_bh(&ar->data_lock);
2708
2709 ar->radar_enabled = conf->radar_enabled;
2710 ath10k_recalc_radar_detection(ar);
2711
2712 if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
2713 ar->chandef = conf->chandef;
2714 ath10k_config_chan(ar);
2715 }
2716 }
2717
2718 if (changed & IEEE80211_CONF_CHANGE_POWER) {
2719 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac config power %d\n",
2720 hw->conf.power_level);
2721
2722 param = ar->wmi.pdev_param->txpower_limit2g;
2723 ret = ath10k_wmi_pdev_set_param(ar, param,
2724 hw->conf.power_level * 2);
2725 if (ret)
2726 ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
2727 hw->conf.power_level, ret);
2728
2729 param = ar->wmi.pdev_param->txpower_limit5g;
2730 ret = ath10k_wmi_pdev_set_param(ar, param,
2731 hw->conf.power_level * 2);
2732 if (ret)
2733 ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
2734 hw->conf.power_level, ret);
2735 }
2736
2737 if (changed & IEEE80211_CONF_CHANGE_PS)
2738 ath10k_config_ps(ar);
2739
2740 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
2741 ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
2742 ret = ath10k_monitor_recalc(ar);
2743 if (ret)
2744 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
2745 }
2746
2747 mutex_unlock(&ar->conf_mutex);
2748 return ret;
2749 }
2750
2751 /*
2752 * TODO:
2753 * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
2754 * because we will send mgmt frames without CCK. This requirement
2755 * for P2P_FIND/GO_NEG should be handled by checking CCK flag
2756 * in the TX packet.
2757 */
2758 static int ath10k_add_interface(struct ieee80211_hw *hw,
2759 struct ieee80211_vif *vif)
2760 {
2761 struct ath10k *ar = hw->priv;
2762 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2763 enum wmi_sta_powersave_param param;
2764 int ret = 0;
2765 u32 value;
2766 int bit;
2767 u32 vdev_param;
2768
2769 mutex_lock(&ar->conf_mutex);
2770
2771 memset(arvif, 0, sizeof(*arvif));
2772
2773 arvif->ar = ar;
2774 arvif->vif = vif;
2775
2776 INIT_WORK(&arvif->wep_key_work, ath10k_tx_wep_key_work);
2777 INIT_LIST_HEAD(&arvif->list);
2778
2779 if (ar->free_vdev_map == 0) {
2780 ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
2781 ret = -EBUSY;
2782 goto err;
2783 }
2784 bit = __ffs64(ar->free_vdev_map);
2785
2786 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
2787 bit, ar->free_vdev_map);
2788
2789 arvif->vdev_id = bit;
2790 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
2791
2792 if (ar->p2p)
2793 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
2794
2795 switch (vif->type) {
2796 case NL80211_IFTYPE_UNSPECIFIED:
2797 case NL80211_IFTYPE_STATION:
2798 arvif->vdev_type = WMI_VDEV_TYPE_STA;
2799 if (vif->p2p)
2800 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
2801 break;
2802 case NL80211_IFTYPE_ADHOC:
2803 arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
2804 break;
2805 case NL80211_IFTYPE_AP:
2806 arvif->vdev_type = WMI_VDEV_TYPE_AP;
2807
2808 if (vif->p2p)
2809 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
2810 break;
2811 case NL80211_IFTYPE_MONITOR:
2812 arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
2813 break;
2814 default:
2815 WARN_ON(1);
2816 break;
2817 }
2818
2819 /* Some firmware revisions don't wait for beacon tx completion before
2820 * sending another SWBA event. This could lead to hardware using old
2821 * (freed) beacon data in some cases, e.g. tx credit starvation
2822 * combined with missed TBTT. This is very very rare.
2823 *
2824 * On non-IOMMU-enabled hosts this could be a possible security issue
2825 * because hw could beacon some random data on the air. On
2826 * IOMMU-enabled hosts DMAR faults would occur in most cases and target
2827 * device would crash.
2828 *
2829 * Since there are no beacon tx completions (implicit nor explicit)
2830 * propagated to host the only workaround for this is to allocate a
2831 * DMA-coherent buffer for a lifetime of a vif and use it for all
2832 * beacon tx commands. Worst case for this approach is some beacons may
2833 * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
2834 */
2835 if (vif->type == NL80211_IFTYPE_ADHOC ||
2836 vif->type == NL80211_IFTYPE_AP) {
2837 arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
2838 IEEE80211_MAX_FRAME_LEN,
2839 &arvif->beacon_paddr,
2840 GFP_ATOMIC);
2841 if (!arvif->beacon_buf) {
2842 ret = -ENOMEM;
2843 ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
2844 ret);
2845 goto err;
2846 }
2847 }
2848
2849 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
2850 arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
2851 arvif->beacon_buf ? "single-buf" : "per-skb");
2852
2853 ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
2854 arvif->vdev_subtype, vif->addr);
2855 if (ret) {
2856 ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
2857 arvif->vdev_id, ret);
2858 goto err;
2859 }
2860
2861 ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
2862 list_add(&arvif->list, &ar->arvifs);
2863
2864 vdev_param = ar->wmi.vdev_param->def_keyid;
2865 ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
2866 arvif->def_wep_key_idx);
2867 if (ret) {
2868 ath10k_warn(ar, "failed to set vdev %i default key id: %d\n",
2869 arvif->vdev_id, ret);
2870 goto err_vdev_delete;
2871 }
2872
2873 vdev_param = ar->wmi.vdev_param->tx_encap_type;
2874 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
2875 ATH10K_HW_TXRX_NATIVE_WIFI);
2876 /* 10.X firmware does not support this VDEV parameter. Do not warn */
2877 if (ret && ret != -EOPNOTSUPP) {
2878 ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
2879 arvif->vdev_id, ret);
2880 goto err_vdev_delete;
2881 }
2882
2883 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
2884 ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
2885 if (ret) {
2886 ath10k_warn(ar, "failed to create vdev %i peer for AP: %d\n",
2887 arvif->vdev_id, ret);
2888 goto err_vdev_delete;
2889 }
2890
2891 ret = ath10k_mac_set_kickout(arvif);
2892 if (ret) {
2893 ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
2894 arvif->vdev_id, ret);
2895 goto err_peer_delete;
2896 }
2897 }
2898
2899 if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
2900 param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
2901 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
2902 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
2903 param, value);
2904 if (ret) {
2905 ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
2906 arvif->vdev_id, ret);
2907 goto err_peer_delete;
2908 }
2909
2910 param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
2911 value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
2912 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
2913 param, value);
2914 if (ret) {
2915 ath10k_warn(ar, "failed to set vdev %i TX wake thresh: %d\n",
2916 arvif->vdev_id, ret);
2917 goto err_peer_delete;
2918 }
2919
2920 param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
2921 value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
2922 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
2923 param, value);
2924 if (ret) {
2925 ath10k_warn(ar, "failed to set vdev %i PSPOLL count: %d\n",
2926 arvif->vdev_id, ret);
2927 goto err_peer_delete;
2928 }
2929 }
2930
2931 ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
2932 if (ret) {
2933 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
2934 arvif->vdev_id, ret);
2935 goto err_peer_delete;
2936 }
2937
2938 ret = ath10k_mac_set_frag(arvif, ar->hw->wiphy->frag_threshold);
2939 if (ret) {
2940 ath10k_warn(ar, "failed to set frag threshold for vdev %d: %d\n",
2941 arvif->vdev_id, ret);
2942 goto err_peer_delete;
2943 }
2944
2945 mutex_unlock(&ar->conf_mutex);
2946 return 0;
2947
2948 err_peer_delete:
2949 if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
2950 ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
2951
2952 err_vdev_delete:
2953 ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
2954 ar->free_vdev_map |= 1LL << arvif->vdev_id;
2955 list_del(&arvif->list);
2956
2957 err:
2958 if (arvif->beacon_buf) {
2959 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
2960 arvif->beacon_buf, arvif->beacon_paddr);
2961 arvif->beacon_buf = NULL;
2962 }
2963
2964 mutex_unlock(&ar->conf_mutex);
2965
2966 return ret;
2967 }
2968
2969 static void ath10k_remove_interface(struct ieee80211_hw *hw,
2970 struct ieee80211_vif *vif)
2971 {
2972 struct ath10k *ar = hw->priv;
2973 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2974 int ret;
2975
2976 mutex_lock(&ar->conf_mutex);
2977
2978 cancel_work_sync(&arvif->wep_key_work);
2979
2980 spin_lock_bh(&ar->data_lock);
2981 ath10k_mac_vif_beacon_cleanup(arvif);
2982 spin_unlock_bh(&ar->data_lock);
2983
2984 ret = ath10k_spectral_vif_stop(arvif);
2985 if (ret)
2986 ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
2987 arvif->vdev_id, ret);
2988
2989 ar->free_vdev_map |= 1LL << arvif->vdev_id;
2990 list_del(&arvif->list);
2991
2992 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
2993 ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
2994 if (ret)
2995 ath10k_warn(ar, "failed to remove peer for AP vdev %i: %d\n",
2996 arvif->vdev_id, ret);
2997
2998 kfree(arvif->u.ap.noa_data);
2999 }
3000
3001 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
3002 arvif->vdev_id);
3003
3004 ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
3005 if (ret)
3006 ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
3007 arvif->vdev_id, ret);
3008
3009 ath10k_peer_cleanup(ar, arvif->vdev_id);
3010
3011 mutex_unlock(&ar->conf_mutex);
3012 }
3013
3014 /*
3015 * FIXME: Has to be verified.
3016 */
3017 #define SUPPORTED_FILTERS \
3018 (FIF_PROMISC_IN_BSS | \
3019 FIF_ALLMULTI | \
3020 FIF_CONTROL | \
3021 FIF_PSPOLL | \
3022 FIF_OTHER_BSS | \
3023 FIF_BCN_PRBRESP_PROMISC | \
3024 FIF_PROBE_REQ | \
3025 FIF_FCSFAIL)
3026
3027 static void ath10k_configure_filter(struct ieee80211_hw *hw,
3028 unsigned int changed_flags,
3029 unsigned int *total_flags,
3030 u64 multicast)
3031 {
3032 struct ath10k *ar = hw->priv;
3033 int ret;
3034
3035 mutex_lock(&ar->conf_mutex);
3036
3037 changed_flags &= SUPPORTED_FILTERS;
3038 *total_flags &= SUPPORTED_FILTERS;
3039 ar->filter_flags = *total_flags;
3040
3041 ret = ath10k_monitor_recalc(ar);
3042 if (ret)
3043 ath10k_warn(ar, "failed to recalc montior: %d\n", ret);
3044
3045 mutex_unlock(&ar->conf_mutex);
3046 }
3047
3048 static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
3049 struct ieee80211_vif *vif,
3050 struct ieee80211_bss_conf *info,
3051 u32 changed)
3052 {
3053 struct ath10k *ar = hw->priv;
3054 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3055 int ret = 0;
3056 u32 vdev_param, pdev_param, slottime, preamble;
3057
3058 mutex_lock(&ar->conf_mutex);
3059
3060 if (changed & BSS_CHANGED_IBSS)
3061 ath10k_control_ibss(arvif, info, vif->addr);
3062
3063 if (changed & BSS_CHANGED_BEACON_INT) {
3064 arvif->beacon_interval = info->beacon_int;
3065 vdev_param = ar->wmi.vdev_param->beacon_interval;
3066 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3067 arvif->beacon_interval);
3068 ath10k_dbg(ar, ATH10K_DBG_MAC,
3069 "mac vdev %d beacon_interval %d\n",
3070 arvif->vdev_id, arvif->beacon_interval);
3071
3072 if (ret)
3073 ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
3074 arvif->vdev_id, ret);
3075 }
3076
3077 if (changed & BSS_CHANGED_BEACON) {
3078 ath10k_dbg(ar, ATH10K_DBG_MAC,
3079 "vdev %d set beacon tx mode to staggered\n",
3080 arvif->vdev_id);
3081
3082 pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
3083 ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
3084 WMI_BEACON_STAGGERED_MODE);
3085 if (ret)
3086 ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
3087 arvif->vdev_id, ret);
3088 }
3089
3090 if (changed & BSS_CHANGED_BEACON_INFO) {
3091 arvif->dtim_period = info->dtim_period;
3092
3093 ath10k_dbg(ar, ATH10K_DBG_MAC,
3094 "mac vdev %d dtim_period %d\n",
3095 arvif->vdev_id, arvif->dtim_period);
3096
3097 vdev_param = ar->wmi.vdev_param->dtim_period;
3098 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3099 arvif->dtim_period);
3100 if (ret)
3101 ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
3102 arvif->vdev_id, ret);
3103 }
3104
3105 if (changed & BSS_CHANGED_SSID &&
3106 vif->type == NL80211_IFTYPE_AP) {
3107 arvif->u.ap.ssid_len = info->ssid_len;
3108 if (info->ssid_len)
3109 memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
3110 arvif->u.ap.hidden_ssid = info->hidden_ssid;
3111 }
3112
3113 /*
3114 * Firmware manages AP self-peer internally so make sure to not create
3115 * it in driver. Otherwise AP self-peer deletion may timeout later.
3116 */
3117 if (changed & BSS_CHANGED_BSSID &&
3118 vif->type != NL80211_IFTYPE_AP) {
3119 if (!is_zero_ether_addr(info->bssid)) {
3120 if (vif->type == NL80211_IFTYPE_STATION) {
3121 ath10k_dbg(ar, ATH10K_DBG_MAC,
3122 "mac vdev %d create peer %pM\n",
3123 arvif->vdev_id, info->bssid);
3124
3125 ret = ath10k_peer_create(ar, arvif->vdev_id,
3126 info->bssid);
3127 if (ret)
3128 ath10k_warn(ar, "failed to add peer %pM for vdev %d when changing bssid: %i\n",
3129 info->bssid, arvif->vdev_id,
3130 ret);
3131 /*
3132 * this is never erased as we it for crypto key
3133 * clearing; this is FW requirement
3134 */
3135 ether_addr_copy(arvif->bssid, info->bssid);
3136
3137 ath10k_dbg(ar, ATH10K_DBG_MAC,
3138 "mac vdev %d start %pM\n",
3139 arvif->vdev_id, info->bssid);
3140
3141 ret = ath10k_vdev_start(arvif);
3142 if (ret) {
3143 ath10k_warn(ar, "failed to start vdev %i: %d\n",
3144 arvif->vdev_id, ret);
3145 goto exit;
3146 }
3147
3148 arvif->is_started = true;
3149 }
3150
3151 /*
3152 * Mac80211 does not keep IBSS bssid when leaving IBSS,
3153 * so driver need to store it. It is needed when leaving
3154 * IBSS in order to remove BSSID peer.
3155 */
3156 if (vif->type == NL80211_IFTYPE_ADHOC)
3157 memcpy(arvif->bssid, info->bssid,
3158 ETH_ALEN);
3159 }
3160 }
3161
3162 if (changed & BSS_CHANGED_BEACON_ENABLED)
3163 ath10k_control_beaconing(arvif, info);
3164
3165 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3166 arvif->use_cts_prot = info->use_cts_prot;
3167 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
3168 arvif->vdev_id, info->use_cts_prot);
3169
3170 ret = ath10k_recalc_rtscts_prot(arvif);
3171 if (ret)
3172 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
3173 arvif->vdev_id, ret);
3174 }
3175
3176 if (changed & BSS_CHANGED_ERP_SLOT) {
3177 if (info->use_short_slot)
3178 slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
3179
3180 else
3181 slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
3182
3183 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
3184 arvif->vdev_id, slottime);
3185
3186 vdev_param = ar->wmi.vdev_param->slot_time;
3187 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3188 slottime);
3189 if (ret)
3190 ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
3191 arvif->vdev_id, ret);
3192 }
3193
3194 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3195 if (info->use_short_preamble)
3196 preamble = WMI_VDEV_PREAMBLE_SHORT;
3197 else
3198 preamble = WMI_VDEV_PREAMBLE_LONG;
3199
3200 ath10k_dbg(ar, ATH10K_DBG_MAC,
3201 "mac vdev %d preamble %dn",
3202 arvif->vdev_id, preamble);
3203
3204 vdev_param = ar->wmi.vdev_param->preamble;
3205 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3206 preamble);
3207 if (ret)
3208 ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
3209 arvif->vdev_id, ret);
3210 }
3211
3212 if (changed & BSS_CHANGED_ASSOC) {
3213 if (info->assoc) {
3214 /* Workaround: Make sure monitor vdev is not running
3215 * when associating to prevent some firmware revisions
3216 * (e.g. 10.1 and 10.2) from crashing.
3217 */
3218 if (ar->monitor_started)
3219 ath10k_monitor_stop(ar);
3220 ath10k_bss_assoc(hw, vif, info);
3221 ath10k_monitor_recalc(ar);
3222 }
3223 }
3224
3225 exit:
3226 mutex_unlock(&ar->conf_mutex);
3227 }
3228
3229 static int ath10k_hw_scan(struct ieee80211_hw *hw,
3230 struct ieee80211_vif *vif,
3231 struct ieee80211_scan_request *hw_req)
3232 {
3233 struct ath10k *ar = hw->priv;
3234 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3235 struct cfg80211_scan_request *req = &hw_req->req;
3236 struct wmi_start_scan_arg arg;
3237 int ret = 0;
3238 int i;
3239
3240 mutex_lock(&ar->conf_mutex);
3241
3242 spin_lock_bh(&ar->data_lock);
3243 switch (ar->scan.state) {
3244 case ATH10K_SCAN_IDLE:
3245 reinit_completion(&ar->scan.started);
3246 reinit_completion(&ar->scan.completed);
3247 ar->scan.state = ATH10K_SCAN_STARTING;
3248 ar->scan.is_roc = false;
3249 ar->scan.vdev_id = arvif->vdev_id;
3250 ret = 0;
3251 break;
3252 case ATH10K_SCAN_STARTING:
3253 case ATH10K_SCAN_RUNNING:
3254 case ATH10K_SCAN_ABORTING:
3255 ret = -EBUSY;
3256 break;
3257 }
3258 spin_unlock_bh(&ar->data_lock);
3259
3260 if (ret)
3261 goto exit;
3262
3263 memset(&arg, 0, sizeof(arg));
3264 ath10k_wmi_start_scan_init(ar, &arg);
3265 arg.vdev_id = arvif->vdev_id;
3266 arg.scan_id = ATH10K_SCAN_ID;
3267
3268 if (!req->no_cck)
3269 arg.scan_ctrl_flags |= WMI_SCAN_ADD_CCK_RATES;
3270
3271 if (req->ie_len) {
3272 arg.ie_len = req->ie_len;
3273 memcpy(arg.ie, req->ie, arg.ie_len);
3274 }
3275
3276 if (req->n_ssids) {
3277 arg.n_ssids = req->n_ssids;
3278 for (i = 0; i < arg.n_ssids; i++) {
3279 arg.ssids[i].len = req->ssids[i].ssid_len;
3280 arg.ssids[i].ssid = req->ssids[i].ssid;
3281 }
3282 } else {
3283 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
3284 }
3285
3286 if (req->n_channels) {
3287 arg.n_channels = req->n_channels;
3288 for (i = 0; i < arg.n_channels; i++)
3289 arg.channels[i] = req->channels[i]->center_freq;
3290 }
3291
3292 ret = ath10k_start_scan(ar, &arg);
3293 if (ret) {
3294 ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
3295 spin_lock_bh(&ar->data_lock);
3296 ar->scan.state = ATH10K_SCAN_IDLE;
3297 spin_unlock_bh(&ar->data_lock);
3298 }
3299
3300 exit:
3301 mutex_unlock(&ar->conf_mutex);
3302 return ret;
3303 }
3304
3305 static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
3306 struct ieee80211_vif *vif)
3307 {
3308 struct ath10k *ar = hw->priv;
3309
3310 mutex_lock(&ar->conf_mutex);
3311 cancel_delayed_work_sync(&ar->scan.timeout);
3312 ath10k_scan_abort(ar);
3313 mutex_unlock(&ar->conf_mutex);
3314 }
3315
3316 static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
3317 struct ath10k_vif *arvif,
3318 enum set_key_cmd cmd,
3319 struct ieee80211_key_conf *key)
3320 {
3321 u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
3322 int ret;
3323
3324 /* 10.1 firmware branch requires default key index to be set to group
3325 * key index after installing it. Otherwise FW/HW Txes corrupted
3326 * frames with multi-vif APs. This is not required for main firmware
3327 * branch (e.g. 636).
3328 *
3329 * FIXME: This has been tested only in AP. It remains unknown if this
3330 * is required for multi-vif STA interfaces on 10.1 */
3331
3332 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
3333 return;
3334
3335 if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
3336 return;
3337
3338 if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
3339 return;
3340
3341 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3342 return;
3343
3344 if (cmd != SET_KEY)
3345 return;
3346
3347 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3348 key->keyidx);
3349 if (ret)
3350 ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
3351 arvif->vdev_id, ret);
3352 }
3353
3354 static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3355 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3356 struct ieee80211_key_conf *key)
3357 {
3358 struct ath10k *ar = hw->priv;
3359 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3360 struct ath10k_peer *peer;
3361 const u8 *peer_addr;
3362 bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
3363 key->cipher == WLAN_CIPHER_SUITE_WEP104;
3364 int ret = 0;
3365
3366 if (key->keyidx > WMI_MAX_KEY_INDEX)
3367 return -ENOSPC;
3368
3369 mutex_lock(&ar->conf_mutex);
3370
3371 if (sta)
3372 peer_addr = sta->addr;
3373 else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
3374 peer_addr = vif->bss_conf.bssid;
3375 else
3376 peer_addr = vif->addr;
3377
3378 key->hw_key_idx = key->keyidx;
3379
3380 /* the peer should not disappear in mid-way (unless FW goes awry) since
3381 * we already hold conf_mutex. we just make sure its there now. */
3382 spin_lock_bh(&ar->data_lock);
3383 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
3384 spin_unlock_bh(&ar->data_lock);
3385
3386 if (!peer) {
3387 if (cmd == SET_KEY) {
3388 ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
3389 peer_addr);
3390 ret = -EOPNOTSUPP;
3391 goto exit;
3392 } else {
3393 /* if the peer doesn't exist there is no key to disable
3394 * anymore */
3395 goto exit;
3396 }
3397 }
3398
3399 if (is_wep) {
3400 if (cmd == SET_KEY)
3401 arvif->wep_keys[key->keyidx] = key;
3402 else
3403 arvif->wep_keys[key->keyidx] = NULL;
3404
3405 if (cmd == DISABLE_KEY)
3406 ath10k_clear_vdev_key(arvif, key);
3407 }
3408
3409 ret = ath10k_install_key(arvif, key, cmd, peer_addr);
3410 if (ret) {
3411 ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
3412 arvif->vdev_id, peer_addr, ret);
3413 goto exit;
3414 }
3415
3416 ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);
3417
3418 spin_lock_bh(&ar->data_lock);
3419 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
3420 if (peer && cmd == SET_KEY)
3421 peer->keys[key->keyidx] = key;
3422 else if (peer && cmd == DISABLE_KEY)
3423 peer->keys[key->keyidx] = NULL;
3424 else if (peer == NULL)
3425 /* impossible unless FW goes crazy */
3426 ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
3427 spin_unlock_bh(&ar->data_lock);
3428
3429 exit:
3430 mutex_unlock(&ar->conf_mutex);
3431 return ret;
3432 }
3433
3434 static void ath10k_sta_rc_update_wk(struct work_struct *wk)
3435 {
3436 struct ath10k *ar;
3437 struct ath10k_vif *arvif;
3438 struct ath10k_sta *arsta;
3439 struct ieee80211_sta *sta;
3440 u32 changed, bw, nss, smps;
3441 int err;
3442
3443 arsta = container_of(wk, struct ath10k_sta, update_wk);
3444 sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
3445 arvif = arsta->arvif;
3446 ar = arvif->ar;
3447
3448 spin_lock_bh(&ar->data_lock);
3449
3450 changed = arsta->changed;
3451 arsta->changed = 0;
3452
3453 bw = arsta->bw;
3454 nss = arsta->nss;
3455 smps = arsta->smps;
3456
3457 spin_unlock_bh(&ar->data_lock);
3458
3459 mutex_lock(&ar->conf_mutex);
3460
3461 if (changed & IEEE80211_RC_BW_CHANGED) {
3462 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
3463 sta->addr, bw);
3464
3465 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
3466 WMI_PEER_CHAN_WIDTH, bw);
3467 if (err)
3468 ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
3469 sta->addr, bw, err);
3470 }
3471
3472 if (changed & IEEE80211_RC_NSS_CHANGED) {
3473 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
3474 sta->addr, nss);
3475
3476 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
3477 WMI_PEER_NSS, nss);
3478 if (err)
3479 ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
3480 sta->addr, nss, err);
3481 }
3482
3483 if (changed & IEEE80211_RC_SMPS_CHANGED) {
3484 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
3485 sta->addr, smps);
3486
3487 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
3488 WMI_PEER_SMPS_STATE, smps);
3489 if (err)
3490 ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
3491 sta->addr, smps, err);
3492 }
3493
3494 if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
3495 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM supp rates\n",
3496 sta->addr);
3497
3498 err = ath10k_station_assoc(ar, arvif->vif, sta, true);
3499 if (err)
3500 ath10k_warn(ar, "failed to reassociate station: %pM\n",
3501 sta->addr);
3502 }
3503
3504 mutex_unlock(&ar->conf_mutex);
3505 }
3506
3507 static int ath10k_sta_state(struct ieee80211_hw *hw,
3508 struct ieee80211_vif *vif,
3509 struct ieee80211_sta *sta,
3510 enum ieee80211_sta_state old_state,
3511 enum ieee80211_sta_state new_state)
3512 {
3513 struct ath10k *ar = hw->priv;
3514 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3515 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
3516 int max_num_peers;
3517 int ret = 0;
3518
3519 if (old_state == IEEE80211_STA_NOTEXIST &&
3520 new_state == IEEE80211_STA_NONE) {
3521 memset(arsta, 0, sizeof(*arsta));
3522 arsta->arvif = arvif;
3523 INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
3524 }
3525
3526 /* cancel must be done outside the mutex to avoid deadlock */
3527 if ((old_state == IEEE80211_STA_NONE &&
3528 new_state == IEEE80211_STA_NOTEXIST))
3529 cancel_work_sync(&arsta->update_wk);
3530
3531 mutex_lock(&ar->conf_mutex);
3532
3533 if (old_state == IEEE80211_STA_NOTEXIST &&
3534 new_state == IEEE80211_STA_NONE &&
3535 vif->type != NL80211_IFTYPE_STATION) {
3536 /*
3537 * New station addition.
3538 */
3539 if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
3540 max_num_peers = TARGET_10X_NUM_PEERS_MAX - 1;
3541 else
3542 max_num_peers = TARGET_NUM_PEERS;
3543
3544 if (ar->num_peers >= max_num_peers) {
3545 ath10k_warn(ar, "number of peers exceeded: peers number %d (max peers %d)\n",
3546 ar->num_peers, max_num_peers);
3547 ret = -ENOBUFS;
3548 goto exit;
3549 }
3550
3551 ath10k_dbg(ar, ATH10K_DBG_MAC,
3552 "mac vdev %d peer create %pM (new sta) num_peers %d\n",
3553 arvif->vdev_id, sta->addr, ar->num_peers);
3554
3555 ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
3556 if (ret)
3557 ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
3558 sta->addr, arvif->vdev_id, ret);
3559 } else if ((old_state == IEEE80211_STA_NONE &&
3560 new_state == IEEE80211_STA_NOTEXIST)) {
3561 /*
3562 * Existing station deletion.
3563 */
3564 ath10k_dbg(ar, ATH10K_DBG_MAC,
3565 "mac vdev %d peer delete %pM (sta gone)\n",
3566 arvif->vdev_id, sta->addr);
3567 ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
3568 if (ret)
3569 ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
3570 sta->addr, arvif->vdev_id, ret);
3571
3572 if (vif->type == NL80211_IFTYPE_STATION)
3573 ath10k_bss_disassoc(hw, vif);
3574 } else if (old_state == IEEE80211_STA_AUTH &&
3575 new_state == IEEE80211_STA_ASSOC &&
3576 (vif->type == NL80211_IFTYPE_AP ||
3577 vif->type == NL80211_IFTYPE_ADHOC)) {
3578 /*
3579 * New association.
3580 */
3581 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
3582 sta->addr);
3583
3584 ret = ath10k_station_assoc(ar, vif, sta, false);
3585 if (ret)
3586 ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
3587 sta->addr, arvif->vdev_id, ret);
3588 } else if (old_state == IEEE80211_STA_ASSOC &&
3589 new_state == IEEE80211_STA_AUTH &&
3590 (vif->type == NL80211_IFTYPE_AP ||
3591 vif->type == NL80211_IFTYPE_ADHOC)) {
3592 /*
3593 * Disassociation.
3594 */
3595 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
3596 sta->addr);
3597
3598 ret = ath10k_station_disassoc(ar, vif, sta);
3599 if (ret)
3600 ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
3601 sta->addr, arvif->vdev_id, ret);
3602 }
3603 exit:
3604 mutex_unlock(&ar->conf_mutex);
3605 return ret;
3606 }
3607
3608 static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
3609 u16 ac, bool enable)
3610 {
3611 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3612 u32 value = 0;
3613 int ret = 0;
3614
3615 lockdep_assert_held(&ar->conf_mutex);
3616
3617 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
3618 return 0;
3619
3620 switch (ac) {
3621 case IEEE80211_AC_VO:
3622 value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
3623 WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
3624 break;
3625 case IEEE80211_AC_VI:
3626 value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
3627 WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
3628 break;
3629 case IEEE80211_AC_BE:
3630 value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
3631 WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
3632 break;
3633 case IEEE80211_AC_BK:
3634 value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
3635 WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
3636 break;
3637 }
3638
3639 if (enable)
3640 arvif->u.sta.uapsd |= value;
3641 else
3642 arvif->u.sta.uapsd &= ~value;
3643
3644 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
3645 WMI_STA_PS_PARAM_UAPSD,
3646 arvif->u.sta.uapsd);
3647 if (ret) {
3648 ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
3649 goto exit;
3650 }
3651
3652 if (arvif->u.sta.uapsd)
3653 value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
3654 else
3655 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
3656
3657 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
3658 WMI_STA_PS_PARAM_RX_WAKE_POLICY,
3659 value);
3660 if (ret)
3661 ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
3662
3663 exit:
3664 return ret;
3665 }
3666
3667 static int ath10k_conf_tx(struct ieee80211_hw *hw,
3668 struct ieee80211_vif *vif, u16 ac,
3669 const struct ieee80211_tx_queue_params *params)
3670 {
3671 struct ath10k *ar = hw->priv;
3672 struct wmi_wmm_params_arg *p = NULL;
3673 int ret;
3674
3675 mutex_lock(&ar->conf_mutex);
3676
3677 switch (ac) {
3678 case IEEE80211_AC_VO:
3679 p = &ar->wmm_params.ac_vo;
3680 break;
3681 case IEEE80211_AC_VI:
3682 p = &ar->wmm_params.ac_vi;
3683 break;
3684 case IEEE80211_AC_BE:
3685 p = &ar->wmm_params.ac_be;
3686 break;
3687 case IEEE80211_AC_BK:
3688 p = &ar->wmm_params.ac_bk;
3689 break;
3690 }
3691
3692 if (WARN_ON(!p)) {
3693 ret = -EINVAL;
3694 goto exit;
3695 }
3696
3697 p->cwmin = params->cw_min;
3698 p->cwmax = params->cw_max;
3699 p->aifs = params->aifs;
3700
3701 /*
3702 * The channel time duration programmed in the HW is in absolute
3703 * microseconds, while mac80211 gives the txop in units of
3704 * 32 microseconds.
3705 */
3706 p->txop = params->txop * 32;
3707
3708 /* FIXME: FW accepts wmm params per hw, not per vif */
3709 ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
3710 if (ret) {
3711 ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
3712 goto exit;
3713 }
3714
3715 ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
3716 if (ret)
3717 ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
3718
3719 exit:
3720 mutex_unlock(&ar->conf_mutex);
3721 return ret;
3722 }
3723
3724 #define ATH10K_ROC_TIMEOUT_HZ (2*HZ)
3725
3726 static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
3727 struct ieee80211_vif *vif,
3728 struct ieee80211_channel *chan,
3729 int duration,
3730 enum ieee80211_roc_type type)
3731 {
3732 struct ath10k *ar = hw->priv;
3733 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3734 struct wmi_start_scan_arg arg;
3735 int ret = 0;
3736
3737 mutex_lock(&ar->conf_mutex);
3738
3739 spin_lock_bh(&ar->data_lock);
3740 switch (ar->scan.state) {
3741 case ATH10K_SCAN_IDLE:
3742 reinit_completion(&ar->scan.started);
3743 reinit_completion(&ar->scan.completed);
3744 reinit_completion(&ar->scan.on_channel);
3745 ar->scan.state = ATH10K_SCAN_STARTING;
3746 ar->scan.is_roc = true;
3747 ar->scan.vdev_id = arvif->vdev_id;
3748 ar->scan.roc_freq = chan->center_freq;
3749 ret = 0;
3750 break;
3751 case ATH10K_SCAN_STARTING:
3752 case ATH10K_SCAN_RUNNING:
3753 case ATH10K_SCAN_ABORTING:
3754 ret = -EBUSY;
3755 break;
3756 }
3757 spin_unlock_bh(&ar->data_lock);
3758
3759 if (ret)
3760 goto exit;
3761
3762 memset(&arg, 0, sizeof(arg));
3763 ath10k_wmi_start_scan_init(ar, &arg);
3764 arg.vdev_id = arvif->vdev_id;
3765 arg.scan_id = ATH10K_SCAN_ID;
3766 arg.n_channels = 1;
3767 arg.channels[0] = chan->center_freq;
3768 arg.dwell_time_active = duration;
3769 arg.dwell_time_passive = duration;
3770 arg.max_scan_time = 2 * duration;
3771 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
3772 arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
3773
3774 ret = ath10k_start_scan(ar, &arg);
3775 if (ret) {
3776 ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
3777 spin_lock_bh(&ar->data_lock);
3778 ar->scan.state = ATH10K_SCAN_IDLE;
3779 spin_unlock_bh(&ar->data_lock);
3780 goto exit;
3781 }
3782
3783 ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
3784 if (ret == 0) {
3785 ath10k_warn(ar, "failed to switch to channel for roc scan\n");
3786
3787 ret = ath10k_scan_stop(ar);
3788 if (ret)
3789 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
3790
3791 ret = -ETIMEDOUT;
3792 goto exit;
3793 }
3794
3795 ret = 0;
3796 exit:
3797 mutex_unlock(&ar->conf_mutex);
3798 return ret;
3799 }
3800
3801 static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
3802 {
3803 struct ath10k *ar = hw->priv;
3804
3805 mutex_lock(&ar->conf_mutex);
3806 cancel_delayed_work_sync(&ar->scan.timeout);
3807 ath10k_scan_abort(ar);
3808 mutex_unlock(&ar->conf_mutex);
3809
3810 return 0;
3811 }
3812
3813 /*
3814 * Both RTS and Fragmentation threshold are interface-specific
3815 * in ath10k, but device-specific in mac80211.
3816 */
3817
3818 static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3819 {
3820 struct ath10k *ar = hw->priv;
3821 struct ath10k_vif *arvif;
3822 int ret = 0;
3823
3824 mutex_lock(&ar->conf_mutex);
3825 list_for_each_entry(arvif, &ar->arvifs, list) {
3826 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
3827 arvif->vdev_id, value);
3828
3829 ret = ath10k_mac_set_rts(arvif, value);
3830 if (ret) {
3831 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
3832 arvif->vdev_id, ret);
3833 break;
3834 }
3835 }
3836 mutex_unlock(&ar->conf_mutex);
3837
3838 return ret;
3839 }
3840
3841 static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3842 {
3843 struct ath10k *ar = hw->priv;
3844 struct ath10k_vif *arvif;
3845 int ret = 0;
3846
3847 mutex_lock(&ar->conf_mutex);
3848 list_for_each_entry(arvif, &ar->arvifs, list) {
3849 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d fragmentation threshold %d\n",
3850 arvif->vdev_id, value);
3851
3852 ret = ath10k_mac_set_rts(arvif, value);
3853 if (ret) {
3854 ath10k_warn(ar, "failed to set fragmentation threshold for vdev %d: %d\n",
3855 arvif->vdev_id, ret);
3856 break;
3857 }
3858 }
3859 mutex_unlock(&ar->conf_mutex);
3860
3861 return ret;
3862 }
3863
3864 static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3865 u32 queues, bool drop)
3866 {
3867 struct ath10k *ar = hw->priv;
3868 bool skip;
3869 int ret;
3870
3871 /* mac80211 doesn't care if we really xmit queued frames or not
3872 * we'll collect those frames either way if we stop/delete vdevs */
3873 if (drop)
3874 return;
3875
3876 mutex_lock(&ar->conf_mutex);
3877
3878 if (ar->state == ATH10K_STATE_WEDGED)
3879 goto skip;
3880
3881 ret = wait_event_timeout(ar->htt.empty_tx_wq, ({
3882 bool empty;
3883
3884 spin_lock_bh(&ar->htt.tx_lock);
3885 empty = (ar->htt.num_pending_tx == 0);
3886 spin_unlock_bh(&ar->htt.tx_lock);
3887
3888 skip = (ar->state == ATH10K_STATE_WEDGED);
3889
3890 (empty || skip);
3891 }), ATH10K_FLUSH_TIMEOUT_HZ);
3892
3893 if (ret <= 0 || skip)
3894 ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %i\n",
3895 skip, ar->state, ret);
3896
3897 skip:
3898 mutex_unlock(&ar->conf_mutex);
3899 }
3900
3901 /* TODO: Implement this function properly
3902 * For now it is needed to reply to Probe Requests in IBSS mode.
3903 * Propably we need this information from FW.
3904 */
3905 static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
3906 {
3907 return 1;
3908 }
3909
3910 #ifdef CONFIG_PM
3911 static int ath10k_suspend(struct ieee80211_hw *hw,
3912 struct cfg80211_wowlan *wowlan)
3913 {
3914 struct ath10k *ar = hw->priv;
3915 int ret;
3916
3917 mutex_lock(&ar->conf_mutex);
3918
3919 ret = ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND);
3920 if (ret) {
3921 if (ret == -ETIMEDOUT)
3922 goto resume;
3923 ret = 1;
3924 goto exit;
3925 }
3926
3927 ret = ath10k_hif_suspend(ar);
3928 if (ret) {
3929 ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
3930 goto resume;
3931 }
3932
3933 ret = 0;
3934 goto exit;
3935 resume:
3936 ret = ath10k_wmi_pdev_resume_target(ar);
3937 if (ret)
3938 ath10k_warn(ar, "failed to resume target: %d\n", ret);
3939
3940 ret = 1;
3941 exit:
3942 mutex_unlock(&ar->conf_mutex);
3943 return ret;
3944 }
3945
3946 static int ath10k_resume(struct ieee80211_hw *hw)
3947 {
3948 struct ath10k *ar = hw->priv;
3949 int ret;
3950
3951 mutex_lock(&ar->conf_mutex);
3952
3953 ret = ath10k_hif_resume(ar);
3954 if (ret) {
3955 ath10k_warn(ar, "failed to resume hif: %d\n", ret);
3956 ret = 1;
3957 goto exit;
3958 }
3959
3960 ret = ath10k_wmi_pdev_resume_target(ar);
3961 if (ret) {
3962 ath10k_warn(ar, "failed to resume target: %d\n", ret);
3963 ret = 1;
3964 goto exit;
3965 }
3966
3967 ret = 0;
3968 exit:
3969 mutex_unlock(&ar->conf_mutex);
3970 return ret;
3971 }
3972 #endif
3973
3974 static void ath10k_restart_complete(struct ieee80211_hw *hw)
3975 {
3976 struct ath10k *ar = hw->priv;
3977
3978 mutex_lock(&ar->conf_mutex);
3979
3980 /* If device failed to restart it will be in a different state, e.g.
3981 * ATH10K_STATE_WEDGED */
3982 if (ar->state == ATH10K_STATE_RESTARTED) {
3983 ath10k_info(ar, "device successfully recovered\n");
3984 ar->state = ATH10K_STATE_ON;
3985 }
3986
3987 mutex_unlock(&ar->conf_mutex);
3988 }
3989
3990 static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
3991 struct survey_info *survey)
3992 {
3993 struct ath10k *ar = hw->priv;
3994 struct ieee80211_supported_band *sband;
3995 struct survey_info *ar_survey = &ar->survey[idx];
3996 int ret = 0;
3997
3998 mutex_lock(&ar->conf_mutex);
3999
4000 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
4001 if (sband && idx >= sband->n_channels) {
4002 idx -= sband->n_channels;
4003 sband = NULL;
4004 }
4005
4006 if (!sband)
4007 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
4008
4009 if (!sband || idx >= sband->n_channels) {
4010 ret = -ENOENT;
4011 goto exit;
4012 }
4013
4014 spin_lock_bh(&ar->data_lock);
4015 memcpy(survey, ar_survey, sizeof(*survey));
4016 spin_unlock_bh(&ar->data_lock);
4017
4018 survey->channel = &sband->channels[idx];
4019
4020 exit:
4021 mutex_unlock(&ar->conf_mutex);
4022 return ret;
4023 }
4024
4025 /* Helper table for legacy fixed_rate/bitrate_mask */
4026 static const u8 cck_ofdm_rate[] = {
4027 /* CCK */
4028 3, /* 1Mbps */
4029 2, /* 2Mbps */
4030 1, /* 5.5Mbps */
4031 0, /* 11Mbps */
4032 /* OFDM */
4033 3, /* 6Mbps */
4034 7, /* 9Mbps */
4035 2, /* 12Mbps */
4036 6, /* 18Mbps */
4037 1, /* 24Mbps */
4038 5, /* 36Mbps */
4039 0, /* 48Mbps */
4040 4, /* 54Mbps */
4041 };
4042
4043 /* Check if only one bit set */
4044 static int ath10k_check_single_mask(u32 mask)
4045 {
4046 int bit;
4047
4048 bit = ffs(mask);
4049 if (!bit)
4050 return 0;
4051
4052 mask &= ~BIT(bit - 1);
4053 if (mask)
4054 return 2;
4055
4056 return 1;
4057 }
4058
4059 static bool
4060 ath10k_default_bitrate_mask(struct ath10k *ar,
4061 enum ieee80211_band band,
4062 const struct cfg80211_bitrate_mask *mask)
4063 {
4064 u32 legacy = 0x00ff;
4065 u8 ht = 0xff, i;
4066 u16 vht = 0x3ff;
4067
4068 switch (band) {
4069 case IEEE80211_BAND_2GHZ:
4070 legacy = 0x00fff;
4071 vht = 0;
4072 break;
4073 case IEEE80211_BAND_5GHZ:
4074 break;
4075 default:
4076 return false;
4077 }
4078
4079 if (mask->control[band].legacy != legacy)
4080 return false;
4081
4082 for (i = 0; i < ar->num_rf_chains; i++)
4083 if (mask->control[band].ht_mcs[i] != ht)
4084 return false;
4085
4086 for (i = 0; i < ar->num_rf_chains; i++)
4087 if (mask->control[band].vht_mcs[i] != vht)
4088 return false;
4089
4090 return true;
4091 }
4092
4093 static bool
4094 ath10k_bitrate_mask_nss(const struct cfg80211_bitrate_mask *mask,
4095 enum ieee80211_band band,
4096 u8 *fixed_nss)
4097 {
4098 int ht_nss = 0, vht_nss = 0, i;
4099
4100 /* check legacy */
4101 if (ath10k_check_single_mask(mask->control[band].legacy))
4102 return false;
4103
4104 /* check HT */
4105 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
4106 if (mask->control[band].ht_mcs[i] == 0xff)
4107 continue;
4108 else if (mask->control[band].ht_mcs[i] == 0x00)
4109 break;
4110
4111 return false;
4112 }
4113
4114 ht_nss = i;
4115
4116 /* check VHT */
4117 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
4118 if (mask->control[band].vht_mcs[i] == 0x03ff)
4119 continue;
4120 else if (mask->control[band].vht_mcs[i] == 0x0000)
4121 break;
4122
4123 return false;
4124 }
4125
4126 vht_nss = i;
4127
4128 if (ht_nss > 0 && vht_nss > 0)
4129 return false;
4130
4131 if (ht_nss)
4132 *fixed_nss = ht_nss;
4133 else if (vht_nss)
4134 *fixed_nss = vht_nss;
4135 else
4136 return false;
4137
4138 return true;
4139 }
4140
4141 static bool
4142 ath10k_bitrate_mask_correct(const struct cfg80211_bitrate_mask *mask,
4143 enum ieee80211_band band,
4144 enum wmi_rate_preamble *preamble)
4145 {
4146 int legacy = 0, ht = 0, vht = 0, i;
4147
4148 *preamble = WMI_RATE_PREAMBLE_OFDM;
4149
4150 /* check legacy */
4151 legacy = ath10k_check_single_mask(mask->control[band].legacy);
4152 if (legacy > 1)
4153 return false;
4154
4155 /* check HT */
4156 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
4157 ht += ath10k_check_single_mask(mask->control[band].ht_mcs[i]);
4158 if (ht > 1)
4159 return false;
4160
4161 /* check VHT */
4162 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
4163 vht += ath10k_check_single_mask(mask->control[band].vht_mcs[i]);
4164 if (vht > 1)
4165 return false;
4166
4167 /* Currently we support only one fixed_rate */
4168 if ((legacy + ht + vht) != 1)
4169 return false;
4170
4171 if (ht)
4172 *preamble = WMI_RATE_PREAMBLE_HT;
4173 else if (vht)
4174 *preamble = WMI_RATE_PREAMBLE_VHT;
4175
4176 return true;
4177 }
4178
4179 static bool
4180 ath10k_bitrate_mask_rate(struct ath10k *ar,
4181 const struct cfg80211_bitrate_mask *mask,
4182 enum ieee80211_band band,
4183 u8 *fixed_rate,
4184 u8 *fixed_nss)
4185 {
4186 u8 rate = 0, pream = 0, nss = 0, i;
4187 enum wmi_rate_preamble preamble;
4188
4189 /* Check if single rate correct */
4190 if (!ath10k_bitrate_mask_correct(mask, band, &preamble))
4191 return false;
4192
4193 pream = preamble;
4194
4195 switch (preamble) {
4196 case WMI_RATE_PREAMBLE_CCK:
4197 case WMI_RATE_PREAMBLE_OFDM:
4198 i = ffs(mask->control[band].legacy) - 1;
4199
4200 if (band == IEEE80211_BAND_2GHZ && i < 4)
4201 pream = WMI_RATE_PREAMBLE_CCK;
4202
4203 if (band == IEEE80211_BAND_5GHZ)
4204 i += 4;
4205
4206 if (i >= ARRAY_SIZE(cck_ofdm_rate))
4207 return false;
4208
4209 rate = cck_ofdm_rate[i];
4210 break;
4211 case WMI_RATE_PREAMBLE_HT:
4212 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
4213 if (mask->control[band].ht_mcs[i])
4214 break;
4215
4216 if (i == IEEE80211_HT_MCS_MASK_LEN)
4217 return false;
4218
4219 rate = ffs(mask->control[band].ht_mcs[i]) - 1;
4220 nss = i;
4221 break;
4222 case WMI_RATE_PREAMBLE_VHT:
4223 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
4224 if (mask->control[band].vht_mcs[i])
4225 break;
4226
4227 if (i == NL80211_VHT_NSS_MAX)
4228 return false;
4229
4230 rate = ffs(mask->control[band].vht_mcs[i]) - 1;
4231 nss = i;
4232 break;
4233 }
4234
4235 *fixed_nss = nss + 1;
4236 nss <<= 4;
4237 pream <<= 6;
4238
4239 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac fixed rate pream 0x%02x nss 0x%02x rate 0x%02x\n",
4240 pream, nss, rate);
4241
4242 *fixed_rate = pream | nss | rate;
4243
4244 return true;
4245 }
4246
4247 static bool ath10k_get_fixed_rate_nss(struct ath10k *ar,
4248 const struct cfg80211_bitrate_mask *mask,
4249 enum ieee80211_band band,
4250 u8 *fixed_rate,
4251 u8 *fixed_nss)
4252 {
4253 /* First check full NSS mask, if we can simply limit NSS */
4254 if (ath10k_bitrate_mask_nss(mask, band, fixed_nss))
4255 return true;
4256
4257 /* Next Check single rate is set */
4258 return ath10k_bitrate_mask_rate(ar, mask, band, fixed_rate, fixed_nss);
4259 }
4260
4261 static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
4262 u8 fixed_rate,
4263 u8 fixed_nss,
4264 u8 force_sgi)
4265 {
4266 struct ath10k *ar = arvif->ar;
4267 u32 vdev_param;
4268 int ret = 0;
4269
4270 mutex_lock(&ar->conf_mutex);
4271
4272 if (arvif->fixed_rate == fixed_rate &&
4273 arvif->fixed_nss == fixed_nss &&
4274 arvif->force_sgi == force_sgi)
4275 goto exit;
4276
4277 if (fixed_rate == WMI_FIXED_RATE_NONE)
4278 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac disable fixed bitrate mask\n");
4279
4280 if (force_sgi)
4281 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac force sgi\n");
4282
4283 vdev_param = ar->wmi.vdev_param->fixed_rate;
4284 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
4285 vdev_param, fixed_rate);
4286 if (ret) {
4287 ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
4288 fixed_rate, ret);
4289 ret = -EINVAL;
4290 goto exit;
4291 }
4292
4293 arvif->fixed_rate = fixed_rate;
4294
4295 vdev_param = ar->wmi.vdev_param->nss;
4296 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
4297 vdev_param, fixed_nss);
4298
4299 if (ret) {
4300 ath10k_warn(ar, "failed to set fixed nss param %d: %d\n",
4301 fixed_nss, ret);
4302 ret = -EINVAL;
4303 goto exit;
4304 }
4305
4306 arvif->fixed_nss = fixed_nss;
4307
4308 vdev_param = ar->wmi.vdev_param->sgi;
4309 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4310 force_sgi);
4311
4312 if (ret) {
4313 ath10k_warn(ar, "failed to set sgi param %d: %d\n",
4314 force_sgi, ret);
4315 ret = -EINVAL;
4316 goto exit;
4317 }
4318
4319 arvif->force_sgi = force_sgi;
4320
4321 exit:
4322 mutex_unlock(&ar->conf_mutex);
4323 return ret;
4324 }
4325
4326 static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
4327 struct ieee80211_vif *vif,
4328 const struct cfg80211_bitrate_mask *mask)
4329 {
4330 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4331 struct ath10k *ar = arvif->ar;
4332 enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
4333 u8 fixed_rate = WMI_FIXED_RATE_NONE;
4334 u8 fixed_nss = ar->num_rf_chains;
4335 u8 force_sgi;
4336
4337 force_sgi = mask->control[band].gi;
4338 if (force_sgi == NL80211_TXRATE_FORCE_LGI)
4339 return -EINVAL;
4340
4341 if (!ath10k_default_bitrate_mask(ar, band, mask)) {
4342 if (!ath10k_get_fixed_rate_nss(ar, mask, band,
4343 &fixed_rate,
4344 &fixed_nss))
4345 return -EINVAL;
4346 }
4347
4348 if (fixed_rate == WMI_FIXED_RATE_NONE && force_sgi) {
4349 ath10k_warn(ar, "failed to force SGI usage for default rate settings\n");
4350 return -EINVAL;
4351 }
4352
4353 return ath10k_set_fixed_rate_param(arvif, fixed_rate,
4354 fixed_nss, force_sgi);
4355 }
4356
4357 static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
4358 struct ieee80211_vif *vif,
4359 struct ieee80211_sta *sta,
4360 u32 changed)
4361 {
4362 struct ath10k *ar = hw->priv;
4363 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
4364 u32 bw, smps;
4365
4366 spin_lock_bh(&ar->data_lock);
4367
4368 ath10k_dbg(ar, ATH10K_DBG_MAC,
4369 "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
4370 sta->addr, changed, sta->bandwidth, sta->rx_nss,
4371 sta->smps_mode);
4372
4373 if (changed & IEEE80211_RC_BW_CHANGED) {
4374 bw = WMI_PEER_CHWIDTH_20MHZ;
4375
4376 switch (sta->bandwidth) {
4377 case IEEE80211_STA_RX_BW_20:
4378 bw = WMI_PEER_CHWIDTH_20MHZ;
4379 break;
4380 case IEEE80211_STA_RX_BW_40:
4381 bw = WMI_PEER_CHWIDTH_40MHZ;
4382 break;
4383 case IEEE80211_STA_RX_BW_80:
4384 bw = WMI_PEER_CHWIDTH_80MHZ;
4385 break;
4386 case IEEE80211_STA_RX_BW_160:
4387 ath10k_warn(ar, "Invalid bandwith %d in rc update for %pM\n",
4388 sta->bandwidth, sta->addr);
4389 bw = WMI_PEER_CHWIDTH_20MHZ;
4390 break;
4391 }
4392
4393 arsta->bw = bw;
4394 }
4395
4396 if (changed & IEEE80211_RC_NSS_CHANGED)
4397 arsta->nss = sta->rx_nss;
4398
4399 if (changed & IEEE80211_RC_SMPS_CHANGED) {
4400 smps = WMI_PEER_SMPS_PS_NONE;
4401
4402 switch (sta->smps_mode) {
4403 case IEEE80211_SMPS_AUTOMATIC:
4404 case IEEE80211_SMPS_OFF:
4405 smps = WMI_PEER_SMPS_PS_NONE;
4406 break;
4407 case IEEE80211_SMPS_STATIC:
4408 smps = WMI_PEER_SMPS_STATIC;
4409 break;
4410 case IEEE80211_SMPS_DYNAMIC:
4411 smps = WMI_PEER_SMPS_DYNAMIC;
4412 break;
4413 case IEEE80211_SMPS_NUM_MODES:
4414 ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
4415 sta->smps_mode, sta->addr);
4416 smps = WMI_PEER_SMPS_PS_NONE;
4417 break;
4418 }
4419
4420 arsta->smps = smps;
4421 }
4422
4423 arsta->changed |= changed;
4424
4425 spin_unlock_bh(&ar->data_lock);
4426
4427 ieee80211_queue_work(hw, &arsta->update_wk);
4428 }
4429
4430 static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
4431 {
4432 /*
4433 * FIXME: Return 0 for time being. Need to figure out whether FW
4434 * has the API to fetch 64-bit local TSF
4435 */
4436
4437 return 0;
4438 }
4439
4440 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
4441 struct ieee80211_vif *vif,
4442 enum ieee80211_ampdu_mlme_action action,
4443 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4444 u8 buf_size)
4445 {
4446 struct ath10k *ar = hw->priv;
4447 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4448
4449 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
4450 arvif->vdev_id, sta->addr, tid, action);
4451
4452 switch (action) {
4453 case IEEE80211_AMPDU_RX_START:
4454 case IEEE80211_AMPDU_RX_STOP:
4455 /* HTT AddBa/DelBa events trigger mac80211 Rx BA session
4456 * creation/removal. Do we need to verify this?
4457 */
4458 return 0;
4459 case IEEE80211_AMPDU_TX_START:
4460 case IEEE80211_AMPDU_TX_STOP_CONT:
4461 case IEEE80211_AMPDU_TX_STOP_FLUSH:
4462 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
4463 case IEEE80211_AMPDU_TX_OPERATIONAL:
4464 /* Firmware offloads Tx aggregation entirely so deny mac80211
4465 * Tx aggregation requests.
4466 */
4467 return -EOPNOTSUPP;
4468 }
4469
4470 return -EINVAL;
4471 }
4472
4473 static const struct ieee80211_ops ath10k_ops = {
4474 .tx = ath10k_tx,
4475 .start = ath10k_start,
4476 .stop = ath10k_stop,
4477 .config = ath10k_config,
4478 .add_interface = ath10k_add_interface,
4479 .remove_interface = ath10k_remove_interface,
4480 .configure_filter = ath10k_configure_filter,
4481 .bss_info_changed = ath10k_bss_info_changed,
4482 .hw_scan = ath10k_hw_scan,
4483 .cancel_hw_scan = ath10k_cancel_hw_scan,
4484 .set_key = ath10k_set_key,
4485 .sta_state = ath10k_sta_state,
4486 .conf_tx = ath10k_conf_tx,
4487 .remain_on_channel = ath10k_remain_on_channel,
4488 .cancel_remain_on_channel = ath10k_cancel_remain_on_channel,
4489 .set_rts_threshold = ath10k_set_rts_threshold,
4490 .set_frag_threshold = ath10k_set_frag_threshold,
4491 .flush = ath10k_flush,
4492 .tx_last_beacon = ath10k_tx_last_beacon,
4493 .set_antenna = ath10k_set_antenna,
4494 .get_antenna = ath10k_get_antenna,
4495 .restart_complete = ath10k_restart_complete,
4496 .get_survey = ath10k_get_survey,
4497 .set_bitrate_mask = ath10k_set_bitrate_mask,
4498 .sta_rc_update = ath10k_sta_rc_update,
4499 .get_tsf = ath10k_get_tsf,
4500 .ampdu_action = ath10k_ampdu_action,
4501 .get_et_sset_count = ath10k_debug_get_et_sset_count,
4502 .get_et_stats = ath10k_debug_get_et_stats,
4503 .get_et_strings = ath10k_debug_get_et_strings,
4504
4505 CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
4506
4507 #ifdef CONFIG_PM
4508 .suspend = ath10k_suspend,
4509 .resume = ath10k_resume,
4510 #endif
4511 };
4512
4513 #define RATETAB_ENT(_rate, _rateid, _flags) { \
4514 .bitrate = (_rate), \
4515 .flags = (_flags), \
4516 .hw_value = (_rateid), \
4517 }
4518
4519 #define CHAN2G(_channel, _freq, _flags) { \
4520 .band = IEEE80211_BAND_2GHZ, \
4521 .hw_value = (_channel), \
4522 .center_freq = (_freq), \
4523 .flags = (_flags), \
4524 .max_antenna_gain = 0, \
4525 .max_power = 30, \
4526 }
4527
4528 #define CHAN5G(_channel, _freq, _flags) { \
4529 .band = IEEE80211_BAND_5GHZ, \
4530 .hw_value = (_channel), \
4531 .center_freq = (_freq), \
4532 .flags = (_flags), \
4533 .max_antenna_gain = 0, \
4534 .max_power = 30, \
4535 }
4536
4537 static const struct ieee80211_channel ath10k_2ghz_channels[] = {
4538 CHAN2G(1, 2412, 0),
4539 CHAN2G(2, 2417, 0),
4540 CHAN2G(3, 2422, 0),
4541 CHAN2G(4, 2427, 0),
4542 CHAN2G(5, 2432, 0),
4543 CHAN2G(6, 2437, 0),
4544 CHAN2G(7, 2442, 0),
4545 CHAN2G(8, 2447, 0),
4546 CHAN2G(9, 2452, 0),
4547 CHAN2G(10, 2457, 0),
4548 CHAN2G(11, 2462, 0),
4549 CHAN2G(12, 2467, 0),
4550 CHAN2G(13, 2472, 0),
4551 CHAN2G(14, 2484, 0),
4552 };
4553
4554 static const struct ieee80211_channel ath10k_5ghz_channels[] = {
4555 CHAN5G(36, 5180, 0),
4556 CHAN5G(40, 5200, 0),
4557 CHAN5G(44, 5220, 0),
4558 CHAN5G(48, 5240, 0),
4559 CHAN5G(52, 5260, 0),
4560 CHAN5G(56, 5280, 0),
4561 CHAN5G(60, 5300, 0),
4562 CHAN5G(64, 5320, 0),
4563 CHAN5G(100, 5500, 0),
4564 CHAN5G(104, 5520, 0),
4565 CHAN5G(108, 5540, 0),
4566 CHAN5G(112, 5560, 0),
4567 CHAN5G(116, 5580, 0),
4568 CHAN5G(120, 5600, 0),
4569 CHAN5G(124, 5620, 0),
4570 CHAN5G(128, 5640, 0),
4571 CHAN5G(132, 5660, 0),
4572 CHAN5G(136, 5680, 0),
4573 CHAN5G(140, 5700, 0),
4574 CHAN5G(149, 5745, 0),
4575 CHAN5G(153, 5765, 0),
4576 CHAN5G(157, 5785, 0),
4577 CHAN5G(161, 5805, 0),
4578 CHAN5G(165, 5825, 0),
4579 };
4580
4581 static struct ieee80211_rate ath10k_rates[] = {
4582 /* CCK */
4583 RATETAB_ENT(10, 0x82, 0),
4584 RATETAB_ENT(20, 0x84, 0),
4585 RATETAB_ENT(55, 0x8b, 0),
4586 RATETAB_ENT(110, 0x96, 0),
4587 /* OFDM */
4588 RATETAB_ENT(60, 0x0c, 0),
4589 RATETAB_ENT(90, 0x12, 0),
4590 RATETAB_ENT(120, 0x18, 0),
4591 RATETAB_ENT(180, 0x24, 0),
4592 RATETAB_ENT(240, 0x30, 0),
4593 RATETAB_ENT(360, 0x48, 0),
4594 RATETAB_ENT(480, 0x60, 0),
4595 RATETAB_ENT(540, 0x6c, 0),
4596 };
4597
4598 #define ath10k_a_rates (ath10k_rates + 4)
4599 #define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
4600 #define ath10k_g_rates (ath10k_rates + 0)
4601 #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
4602
4603 struct ath10k *ath10k_mac_create(size_t priv_size)
4604 {
4605 struct ieee80211_hw *hw;
4606 struct ath10k *ar;
4607
4608 hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, &ath10k_ops);
4609 if (!hw)
4610 return NULL;
4611
4612 ar = hw->priv;
4613 ar->hw = hw;
4614
4615 return ar;
4616 }
4617
4618 void ath10k_mac_destroy(struct ath10k *ar)
4619 {
4620 ieee80211_free_hw(ar->hw);
4621 }
4622
4623 static const struct ieee80211_iface_limit ath10k_if_limits[] = {
4624 {
4625 .max = 8,
4626 .types = BIT(NL80211_IFTYPE_STATION)
4627 | BIT(NL80211_IFTYPE_P2P_CLIENT)
4628 },
4629 {
4630 .max = 3,
4631 .types = BIT(NL80211_IFTYPE_P2P_GO)
4632 },
4633 {
4634 .max = 7,
4635 .types = BIT(NL80211_IFTYPE_AP)
4636 },
4637 };
4638
4639 static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
4640 {
4641 .max = 8,
4642 .types = BIT(NL80211_IFTYPE_AP)
4643 },
4644 };
4645
4646 static const struct ieee80211_iface_combination ath10k_if_comb[] = {
4647 {
4648 .limits = ath10k_if_limits,
4649 .n_limits = ARRAY_SIZE(ath10k_if_limits),
4650 .max_interfaces = 8,
4651 .num_different_channels = 1,
4652 .beacon_int_infra_match = true,
4653 },
4654 };
4655
4656 static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
4657 {
4658 .limits = ath10k_10x_if_limits,
4659 .n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
4660 .max_interfaces = 8,
4661 .num_different_channels = 1,
4662 .beacon_int_infra_match = true,
4663 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
4664 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
4665 BIT(NL80211_CHAN_WIDTH_20) |
4666 BIT(NL80211_CHAN_WIDTH_40) |
4667 BIT(NL80211_CHAN_WIDTH_80),
4668 #endif
4669 },
4670 };
4671
4672 static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
4673 {
4674 struct ieee80211_sta_vht_cap vht_cap = {0};
4675 u16 mcs_map;
4676 int i;
4677
4678 vht_cap.vht_supported = 1;
4679 vht_cap.cap = ar->vht_cap_info;
4680
4681 mcs_map = 0;
4682 for (i = 0; i < 8; i++) {
4683 if (i < ar->num_rf_chains)
4684 mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2);
4685 else
4686 mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2);
4687 }
4688
4689 vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
4690 vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
4691
4692 return vht_cap;
4693 }
4694
4695 static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
4696 {
4697 int i;
4698 struct ieee80211_sta_ht_cap ht_cap = {0};
4699
4700 if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
4701 return ht_cap;
4702
4703 ht_cap.ht_supported = 1;
4704 ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
4705 ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
4706 ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
4707 ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
4708 ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
4709
4710 if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
4711 ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
4712
4713 if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
4714 ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
4715
4716 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
4717 u32 smps;
4718
4719 smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
4720 smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
4721
4722 ht_cap.cap |= smps;
4723 }
4724
4725 if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
4726 ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
4727
4728 if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
4729 u32 stbc;
4730
4731 stbc = ar->ht_cap_info;
4732 stbc &= WMI_HT_CAP_RX_STBC;
4733 stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
4734 stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
4735 stbc &= IEEE80211_HT_CAP_RX_STBC;
4736
4737 ht_cap.cap |= stbc;
4738 }
4739
4740 if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
4741 ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
4742
4743 if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
4744 ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
4745
4746 /* max AMSDU is implicitly taken from vht_cap_info */
4747 if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
4748 ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
4749
4750 for (i = 0; i < ar->num_rf_chains; i++)
4751 ht_cap.mcs.rx_mask[i] = 0xFF;
4752
4753 ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
4754
4755 return ht_cap;
4756 }
4757
4758 static void ath10k_get_arvif_iter(void *data, u8 *mac,
4759 struct ieee80211_vif *vif)
4760 {
4761 struct ath10k_vif_iter *arvif_iter = data;
4762 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4763
4764 if (arvif->vdev_id == arvif_iter->vdev_id)
4765 arvif_iter->arvif = arvif;
4766 }
4767
4768 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
4769 {
4770 struct ath10k_vif_iter arvif_iter;
4771 u32 flags;
4772
4773 memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
4774 arvif_iter.vdev_id = vdev_id;
4775
4776 flags = IEEE80211_IFACE_ITER_RESUME_ALL;
4777 ieee80211_iterate_active_interfaces_atomic(ar->hw,
4778 flags,
4779 ath10k_get_arvif_iter,
4780 &arvif_iter);
4781 if (!arvif_iter.arvif) {
4782 ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
4783 return NULL;
4784 }
4785
4786 return arvif_iter.arvif;
4787 }
4788
4789 int ath10k_mac_register(struct ath10k *ar)
4790 {
4791 struct ieee80211_supported_band *band;
4792 struct ieee80211_sta_vht_cap vht_cap;
4793 struct ieee80211_sta_ht_cap ht_cap;
4794 void *channels;
4795 int ret;
4796
4797 SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
4798
4799 SET_IEEE80211_DEV(ar->hw, ar->dev);
4800
4801 ht_cap = ath10k_get_ht_cap(ar);
4802 vht_cap = ath10k_create_vht_cap(ar);
4803
4804 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
4805 channels = kmemdup(ath10k_2ghz_channels,
4806 sizeof(ath10k_2ghz_channels),
4807 GFP_KERNEL);
4808 if (!channels) {
4809 ret = -ENOMEM;
4810 goto err_free;
4811 }
4812
4813 band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
4814 band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
4815 band->channels = channels;
4816 band->n_bitrates = ath10k_g_rates_size;
4817 band->bitrates = ath10k_g_rates;
4818 band->ht_cap = ht_cap;
4819
4820 /* vht is not supported in 2.4 GHz */
4821
4822 ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
4823 }
4824
4825 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
4826 channels = kmemdup(ath10k_5ghz_channels,
4827 sizeof(ath10k_5ghz_channels),
4828 GFP_KERNEL);
4829 if (!channels) {
4830 ret = -ENOMEM;
4831 goto err_free;
4832 }
4833
4834 band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
4835 band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
4836 band->channels = channels;
4837 band->n_bitrates = ath10k_a_rates_size;
4838 band->bitrates = ath10k_a_rates;
4839 band->ht_cap = ht_cap;
4840 band->vht_cap = vht_cap;
4841 ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
4842 }
4843
4844 ar->hw->wiphy->interface_modes =
4845 BIT(NL80211_IFTYPE_STATION) |
4846 BIT(NL80211_IFTYPE_AP);
4847
4848 ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
4849 ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;
4850
4851 if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
4852 ar->hw->wiphy->interface_modes |=
4853 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4854 BIT(NL80211_IFTYPE_P2P_GO);
4855
4856 ar->hw->flags = IEEE80211_HW_SIGNAL_DBM |
4857 IEEE80211_HW_SUPPORTS_PS |
4858 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
4859 IEEE80211_HW_SUPPORTS_UAPSD |
4860 IEEE80211_HW_MFP_CAPABLE |
4861 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
4862 IEEE80211_HW_HAS_RATE_CONTROL |
4863 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
4864 IEEE80211_HW_AP_LINK_PS |
4865 IEEE80211_HW_SPECTRUM_MGMT;
4866
4867 /* MSDU can have HTT TX fragment pushed in front. The additional 4
4868 * bytes is used for padding/alignment if necessary. */
4869 ar->hw->extra_tx_headroom += sizeof(struct htt_data_tx_desc_frag)*2 + 4;
4870
4871 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
4872 ar->hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
4873
4874 if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
4875 ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
4876 ar->hw->flags |= IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
4877 }
4878
4879 ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
4880 ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
4881
4882 ar->hw->vif_data_size = sizeof(struct ath10k_vif);
4883 ar->hw->sta_data_size = sizeof(struct ath10k_sta);
4884
4885 ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
4886
4887 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
4888 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
4889 ar->hw->wiphy->max_remain_on_channel_duration = 5000;
4890
4891 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
4892 /*
4893 * on LL hardware queues are managed entirely by the FW
4894 * so we only advertise to mac we can do the queues thing
4895 */
4896 ar->hw->queues = 4;
4897
4898 if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
4899 ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
4900 ar->hw->wiphy->n_iface_combinations =
4901 ARRAY_SIZE(ath10k_10x_if_comb);
4902 } else {
4903 ar->hw->wiphy->iface_combinations = ath10k_if_comb;
4904 ar->hw->wiphy->n_iface_combinations =
4905 ARRAY_SIZE(ath10k_if_comb);
4906
4907 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4908 }
4909
4910 ar->hw->netdev_features = NETIF_F_HW_CSUM;
4911
4912 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
4913 /* Init ath dfs pattern detector */
4914 ar->ath_common.debug_mask = ATH_DBG_DFS;
4915 ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
4916 NL80211_DFS_UNSET);
4917
4918 if (!ar->dfs_detector)
4919 ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
4920 }
4921
4922 ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
4923 ath10k_reg_notifier);
4924 if (ret) {
4925 ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
4926 goto err_free;
4927 }
4928
4929 ret = ieee80211_register_hw(ar->hw);
4930 if (ret) {
4931 ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
4932 goto err_free;
4933 }
4934
4935 if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
4936 ret = regulatory_hint(ar->hw->wiphy,
4937 ar->ath_common.regulatory.alpha2);
4938 if (ret)
4939 goto err_unregister;
4940 }
4941
4942 return 0;
4943
4944 err_unregister:
4945 ieee80211_unregister_hw(ar->hw);
4946 err_free:
4947 kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
4948 kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
4949
4950 return ret;
4951 }
4952
4953 void ath10k_mac_unregister(struct ath10k *ar)
4954 {
4955 ieee80211_unregister_hw(ar->hw);
4956
4957 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
4958 ar->dfs_detector->exit(ar->dfs_detector);
4959
4960 kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
4961 kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
4962
4963 SET_IEEE80211_DEV(ar->hw, NULL);
4964 }
Linux kernel - Deliverables
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