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Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
[mirror_ubuntu-bionic-kernel.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 #include <linux/acpi.h>
23
24 #include "hif.h"
25 #include "core.h"
26 #include "debug.h"
27 #include "wmi.h"
28 #include "htt.h"
29 #include "txrx.h"
30 #include "testmode.h"
31 #include "wmi.h"
32 #include "wmi-tlv.h"
33 #include "wmi-ops.h"
34 #include "wow.h"
35
36 /*********/
37 /* Rates */
38 /*********/
39
40 static struct ieee80211_rate ath10k_rates[] = {
41 { .bitrate = 10,
42 .hw_value = ATH10K_HW_RATE_CCK_LP_1M },
43 { .bitrate = 20,
44 .hw_value = ATH10K_HW_RATE_CCK_LP_2M,
45 .hw_value_short = ATH10K_HW_RATE_CCK_SP_2M,
46 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
47 { .bitrate = 55,
48 .hw_value = ATH10K_HW_RATE_CCK_LP_5_5M,
49 .hw_value_short = ATH10K_HW_RATE_CCK_SP_5_5M,
50 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
51 { .bitrate = 110,
52 .hw_value = ATH10K_HW_RATE_CCK_LP_11M,
53 .hw_value_short = ATH10K_HW_RATE_CCK_SP_11M,
54 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
55
56 { .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
57 { .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
58 { .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
59 { .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
60 { .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
61 { .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
62 { .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
63 { .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
64 };
65
66 static struct ieee80211_rate ath10k_rates_rev2[] = {
67 { .bitrate = 10,
68 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_1M },
69 { .bitrate = 20,
70 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_2M,
71 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_2M,
72 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
73 { .bitrate = 55,
74 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_5_5M,
75 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_5_5M,
76 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
77 { .bitrate = 110,
78 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_11M,
79 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_11M,
80 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
81
82 { .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
83 { .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
84 { .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
85 { .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
86 { .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
87 { .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
88 { .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
89 { .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
90 };
91
92 #define ATH10K_MAC_FIRST_OFDM_RATE_IDX 4
93
94 #define ath10k_a_rates (ath10k_rates + ATH10K_MAC_FIRST_OFDM_RATE_IDX)
95 #define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - \
96 ATH10K_MAC_FIRST_OFDM_RATE_IDX)
97 #define ath10k_g_rates (ath10k_rates + 0)
98 #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
99
100 #define ath10k_g_rates_rev2 (ath10k_rates_rev2 + 0)
101 #define ath10k_g_rates_rev2_size (ARRAY_SIZE(ath10k_rates_rev2))
102
103 static bool ath10k_mac_bitrate_is_cck(int bitrate)
104 {
105 switch (bitrate) {
106 case 10:
107 case 20:
108 case 55:
109 case 110:
110 return true;
111 }
112
113 return false;
114 }
115
116 static u8 ath10k_mac_bitrate_to_rate(int bitrate)
117 {
118 return DIV_ROUND_UP(bitrate, 5) |
119 (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
120 }
121
122 u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
123 u8 hw_rate, bool cck)
124 {
125 const struct ieee80211_rate *rate;
126 int i;
127
128 for (i = 0; i < sband->n_bitrates; i++) {
129 rate = &sband->bitrates[i];
130
131 if (ath10k_mac_bitrate_is_cck(rate->bitrate) != cck)
132 continue;
133
134 if (rate->hw_value == hw_rate)
135 return i;
136 else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
137 rate->hw_value_short == hw_rate)
138 return i;
139 }
140
141 return 0;
142 }
143
144 u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
145 u32 bitrate)
146 {
147 int i;
148
149 for (i = 0; i < sband->n_bitrates; i++)
150 if (sband->bitrates[i].bitrate == bitrate)
151 return i;
152
153 return 0;
154 }
155
156 static int ath10k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
157 {
158 switch ((mcs_map >> (2 * nss)) & 0x3) {
159 case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
160 case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
161 case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
162 }
163 return 0;
164 }
165
166 static u32
167 ath10k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
168 {
169 int nss;
170
171 for (nss = IEEE80211_HT_MCS_MASK_LEN - 1; nss >= 0; nss--)
172 if (ht_mcs_mask[nss])
173 return nss + 1;
174
175 return 1;
176 }
177
178 static u32
179 ath10k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
180 {
181 int nss;
182
183 for (nss = NL80211_VHT_NSS_MAX - 1; nss >= 0; nss--)
184 if (vht_mcs_mask[nss])
185 return nss + 1;
186
187 return 1;
188 }
189
190 int ath10k_mac_ext_resource_config(struct ath10k *ar, u32 val)
191 {
192 enum wmi_host_platform_type platform_type;
193 int ret;
194
195 if (test_bit(WMI_SERVICE_TX_MODE_DYNAMIC, ar->wmi.svc_map))
196 platform_type = WMI_HOST_PLATFORM_LOW_PERF;
197 else
198 platform_type = WMI_HOST_PLATFORM_HIGH_PERF;
199
200 ret = ath10k_wmi_ext_resource_config(ar, platform_type, val);
201
202 if (ret && ret != -EOPNOTSUPP) {
203 ath10k_warn(ar, "failed to configure ext resource: %d\n", ret);
204 return ret;
205 }
206
207 return 0;
208 }
209
210 /**********/
211 /* Crypto */
212 /**********/
213
214 static int ath10k_send_key(struct ath10k_vif *arvif,
215 struct ieee80211_key_conf *key,
216 enum set_key_cmd cmd,
217 const u8 *macaddr, u32 flags)
218 {
219 struct ath10k *ar = arvif->ar;
220 struct wmi_vdev_install_key_arg arg = {
221 .vdev_id = arvif->vdev_id,
222 .key_idx = key->keyidx,
223 .key_len = key->keylen,
224 .key_data = key->key,
225 .key_flags = flags,
226 .macaddr = macaddr,
227 };
228
229 lockdep_assert_held(&arvif->ar->conf_mutex);
230
231 switch (key->cipher) {
232 case WLAN_CIPHER_SUITE_CCMP:
233 arg.key_cipher = WMI_CIPHER_AES_CCM;
234 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
235 break;
236 case WLAN_CIPHER_SUITE_TKIP:
237 arg.key_cipher = WMI_CIPHER_TKIP;
238 arg.key_txmic_len = 8;
239 arg.key_rxmic_len = 8;
240 break;
241 case WLAN_CIPHER_SUITE_WEP40:
242 case WLAN_CIPHER_SUITE_WEP104:
243 arg.key_cipher = WMI_CIPHER_WEP;
244 break;
245 case WLAN_CIPHER_SUITE_AES_CMAC:
246 WARN_ON(1);
247 return -EINVAL;
248 default:
249 ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
250 return -EOPNOTSUPP;
251 }
252
253 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
254 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
255
256 if (cmd == DISABLE_KEY) {
257 arg.key_cipher = WMI_CIPHER_NONE;
258 arg.key_data = NULL;
259 }
260
261 return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
262 }
263
264 static int ath10k_install_key(struct ath10k_vif *arvif,
265 struct ieee80211_key_conf *key,
266 enum set_key_cmd cmd,
267 const u8 *macaddr, u32 flags)
268 {
269 struct ath10k *ar = arvif->ar;
270 int ret;
271 unsigned long time_left;
272
273 lockdep_assert_held(&ar->conf_mutex);
274
275 reinit_completion(&ar->install_key_done);
276
277 if (arvif->nohwcrypt)
278 return 1;
279
280 ret = ath10k_send_key(arvif, key, cmd, macaddr, flags);
281 if (ret)
282 return ret;
283
284 time_left = wait_for_completion_timeout(&ar->install_key_done, 3 * HZ);
285 if (time_left == 0)
286 return -ETIMEDOUT;
287
288 return 0;
289 }
290
291 static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
292 const u8 *addr)
293 {
294 struct ath10k *ar = arvif->ar;
295 struct ath10k_peer *peer;
296 int ret;
297 int i;
298 u32 flags;
299
300 lockdep_assert_held(&ar->conf_mutex);
301
302 if (WARN_ON(arvif->vif->type != NL80211_IFTYPE_AP &&
303 arvif->vif->type != NL80211_IFTYPE_ADHOC &&
304 arvif->vif->type != NL80211_IFTYPE_MESH_POINT))
305 return -EINVAL;
306
307 spin_lock_bh(&ar->data_lock);
308 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
309 spin_unlock_bh(&ar->data_lock);
310
311 if (!peer)
312 return -ENOENT;
313
314 for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
315 if (arvif->wep_keys[i] == NULL)
316 continue;
317
318 switch (arvif->vif->type) {
319 case NL80211_IFTYPE_AP:
320 flags = WMI_KEY_PAIRWISE;
321
322 if (arvif->def_wep_key_idx == i)
323 flags |= WMI_KEY_TX_USAGE;
324
325 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
326 SET_KEY, addr, flags);
327 if (ret < 0)
328 return ret;
329 break;
330 case NL80211_IFTYPE_ADHOC:
331 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
332 SET_KEY, addr,
333 WMI_KEY_PAIRWISE);
334 if (ret < 0)
335 return ret;
336
337 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
338 SET_KEY, addr, WMI_KEY_GROUP);
339 if (ret < 0)
340 return ret;
341 break;
342 default:
343 WARN_ON(1);
344 return -EINVAL;
345 }
346
347 spin_lock_bh(&ar->data_lock);
348 peer->keys[i] = arvif->wep_keys[i];
349 spin_unlock_bh(&ar->data_lock);
350 }
351
352 /* In some cases (notably with static WEP IBSS with multiple keys)
353 * multicast Tx becomes broken. Both pairwise and groupwise keys are
354 * installed already. Using WMI_KEY_TX_USAGE in different combinations
355 * didn't seem help. Using def_keyid vdev parameter seems to be
356 * effective so use that.
357 *
358 * FIXME: Revisit. Perhaps this can be done in a less hacky way.
359 */
360 if (arvif->vif->type != NL80211_IFTYPE_ADHOC)
361 return 0;
362
363 if (arvif->def_wep_key_idx == -1)
364 return 0;
365
366 ret = ath10k_wmi_vdev_set_param(arvif->ar,
367 arvif->vdev_id,
368 arvif->ar->wmi.vdev_param->def_keyid,
369 arvif->def_wep_key_idx);
370 if (ret) {
371 ath10k_warn(ar, "failed to re-set def wpa key idxon vdev %i: %d\n",
372 arvif->vdev_id, ret);
373 return ret;
374 }
375
376 return 0;
377 }
378
379 static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
380 const u8 *addr)
381 {
382 struct ath10k *ar = arvif->ar;
383 struct ath10k_peer *peer;
384 int first_errno = 0;
385 int ret;
386 int i;
387 u32 flags = 0;
388
389 lockdep_assert_held(&ar->conf_mutex);
390
391 spin_lock_bh(&ar->data_lock);
392 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
393 spin_unlock_bh(&ar->data_lock);
394
395 if (!peer)
396 return -ENOENT;
397
398 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
399 if (peer->keys[i] == NULL)
400 continue;
401
402 /* key flags are not required to delete the key */
403 ret = ath10k_install_key(arvif, peer->keys[i],
404 DISABLE_KEY, addr, flags);
405 if (ret < 0 && first_errno == 0)
406 first_errno = ret;
407
408 if (ret < 0)
409 ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
410 i, ret);
411
412 spin_lock_bh(&ar->data_lock);
413 peer->keys[i] = NULL;
414 spin_unlock_bh(&ar->data_lock);
415 }
416
417 return first_errno;
418 }
419
420 bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
421 u8 keyidx)
422 {
423 struct ath10k_peer *peer;
424 int i;
425
426 lockdep_assert_held(&ar->data_lock);
427
428 /* We don't know which vdev this peer belongs to,
429 * since WMI doesn't give us that information.
430 *
431 * FIXME: multi-bss needs to be handled.
432 */
433 peer = ath10k_peer_find(ar, 0, addr);
434 if (!peer)
435 return false;
436
437 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
438 if (peer->keys[i] && peer->keys[i]->keyidx == keyidx)
439 return true;
440 }
441
442 return false;
443 }
444
445 static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
446 struct ieee80211_key_conf *key)
447 {
448 struct ath10k *ar = arvif->ar;
449 struct ath10k_peer *peer;
450 u8 addr[ETH_ALEN];
451 int first_errno = 0;
452 int ret;
453 int i;
454 u32 flags = 0;
455
456 lockdep_assert_held(&ar->conf_mutex);
457
458 for (;;) {
459 /* since ath10k_install_key we can't hold data_lock all the
460 * time, so we try to remove the keys incrementally */
461 spin_lock_bh(&ar->data_lock);
462 i = 0;
463 list_for_each_entry(peer, &ar->peers, list) {
464 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
465 if (peer->keys[i] == key) {
466 ether_addr_copy(addr, peer->addr);
467 peer->keys[i] = NULL;
468 break;
469 }
470 }
471
472 if (i < ARRAY_SIZE(peer->keys))
473 break;
474 }
475 spin_unlock_bh(&ar->data_lock);
476
477 if (i == ARRAY_SIZE(peer->keys))
478 break;
479 /* key flags are not required to delete the key */
480 ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr, flags);
481 if (ret < 0 && first_errno == 0)
482 first_errno = ret;
483
484 if (ret)
485 ath10k_warn(ar, "failed to remove key for %pM: %d\n",
486 addr, ret);
487 }
488
489 return first_errno;
490 }
491
492 static int ath10k_mac_vif_update_wep_key(struct ath10k_vif *arvif,
493 struct ieee80211_key_conf *key)
494 {
495 struct ath10k *ar = arvif->ar;
496 struct ath10k_peer *peer;
497 int ret;
498
499 lockdep_assert_held(&ar->conf_mutex);
500
501 list_for_each_entry(peer, &ar->peers, list) {
502 if (ether_addr_equal(peer->addr, arvif->vif->addr))
503 continue;
504
505 if (ether_addr_equal(peer->addr, arvif->bssid))
506 continue;
507
508 if (peer->keys[key->keyidx] == key)
509 continue;
510
511 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vif vdev %i update key %i needs update\n",
512 arvif->vdev_id, key->keyidx);
513
514 ret = ath10k_install_peer_wep_keys(arvif, peer->addr);
515 if (ret) {
516 ath10k_warn(ar, "failed to update wep keys on vdev %i for peer %pM: %d\n",
517 arvif->vdev_id, peer->addr, ret);
518 return ret;
519 }
520 }
521
522 return 0;
523 }
524
525 /*********************/
526 /* General utilities */
527 /*********************/
528
529 static inline enum wmi_phy_mode
530 chan_to_phymode(const struct cfg80211_chan_def *chandef)
531 {
532 enum wmi_phy_mode phymode = MODE_UNKNOWN;
533
534 switch (chandef->chan->band) {
535 case NL80211_BAND_2GHZ:
536 switch (chandef->width) {
537 case NL80211_CHAN_WIDTH_20_NOHT:
538 if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
539 phymode = MODE_11B;
540 else
541 phymode = MODE_11G;
542 break;
543 case NL80211_CHAN_WIDTH_20:
544 phymode = MODE_11NG_HT20;
545 break;
546 case NL80211_CHAN_WIDTH_40:
547 phymode = MODE_11NG_HT40;
548 break;
549 case NL80211_CHAN_WIDTH_5:
550 case NL80211_CHAN_WIDTH_10:
551 case NL80211_CHAN_WIDTH_80:
552 case NL80211_CHAN_WIDTH_80P80:
553 case NL80211_CHAN_WIDTH_160:
554 phymode = MODE_UNKNOWN;
555 break;
556 }
557 break;
558 case NL80211_BAND_5GHZ:
559 switch (chandef->width) {
560 case NL80211_CHAN_WIDTH_20_NOHT:
561 phymode = MODE_11A;
562 break;
563 case NL80211_CHAN_WIDTH_20:
564 phymode = MODE_11NA_HT20;
565 break;
566 case NL80211_CHAN_WIDTH_40:
567 phymode = MODE_11NA_HT40;
568 break;
569 case NL80211_CHAN_WIDTH_80:
570 phymode = MODE_11AC_VHT80;
571 break;
572 case NL80211_CHAN_WIDTH_5:
573 case NL80211_CHAN_WIDTH_10:
574 case NL80211_CHAN_WIDTH_80P80:
575 case NL80211_CHAN_WIDTH_160:
576 phymode = MODE_UNKNOWN;
577 break;
578 }
579 break;
580 default:
581 break;
582 }
583
584 WARN_ON(phymode == MODE_UNKNOWN);
585 return phymode;
586 }
587
588 static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
589 {
590 /*
591 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
592 * 0 for no restriction
593 * 1 for 1/4 us
594 * 2 for 1/2 us
595 * 3 for 1 us
596 * 4 for 2 us
597 * 5 for 4 us
598 * 6 for 8 us
599 * 7 for 16 us
600 */
601 switch (mpdudensity) {
602 case 0:
603 return 0;
604 case 1:
605 case 2:
606 case 3:
607 /* Our lower layer calculations limit our precision to
608 1 microsecond */
609 return 1;
610 case 4:
611 return 2;
612 case 5:
613 return 4;
614 case 6:
615 return 8;
616 case 7:
617 return 16;
618 default:
619 return 0;
620 }
621 }
622
623 int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
624 struct cfg80211_chan_def *def)
625 {
626 struct ieee80211_chanctx_conf *conf;
627
628 rcu_read_lock();
629 conf = rcu_dereference(vif->chanctx_conf);
630 if (!conf) {
631 rcu_read_unlock();
632 return -ENOENT;
633 }
634
635 *def = conf->def;
636 rcu_read_unlock();
637
638 return 0;
639 }
640
641 static void ath10k_mac_num_chanctxs_iter(struct ieee80211_hw *hw,
642 struct ieee80211_chanctx_conf *conf,
643 void *data)
644 {
645 int *num = data;
646
647 (*num)++;
648 }
649
650 static int ath10k_mac_num_chanctxs(struct ath10k *ar)
651 {
652 int num = 0;
653
654 ieee80211_iter_chan_contexts_atomic(ar->hw,
655 ath10k_mac_num_chanctxs_iter,
656 &num);
657
658 return num;
659 }
660
661 static void
662 ath10k_mac_get_any_chandef_iter(struct ieee80211_hw *hw,
663 struct ieee80211_chanctx_conf *conf,
664 void *data)
665 {
666 struct cfg80211_chan_def **def = data;
667
668 *def = &conf->def;
669 }
670
671 static int ath10k_peer_create(struct ath10k *ar,
672 struct ieee80211_vif *vif,
673 struct ieee80211_sta *sta,
674 u32 vdev_id,
675 const u8 *addr,
676 enum wmi_peer_type peer_type)
677 {
678 struct ath10k_vif *arvif;
679 struct ath10k_peer *peer;
680 int num_peers = 0;
681 int ret;
682
683 lockdep_assert_held(&ar->conf_mutex);
684
685 num_peers = ar->num_peers;
686
687 /* Each vdev consumes a peer entry as well */
688 list_for_each_entry(arvif, &ar->arvifs, list)
689 num_peers++;
690
691 if (num_peers >= ar->max_num_peers)
692 return -ENOBUFS;
693
694 ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
695 if (ret) {
696 ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
697 addr, vdev_id, ret);
698 return ret;
699 }
700
701 ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
702 if (ret) {
703 ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
704 addr, vdev_id, ret);
705 return ret;
706 }
707
708 spin_lock_bh(&ar->data_lock);
709
710 peer = ath10k_peer_find(ar, vdev_id, addr);
711 if (!peer) {
712 spin_unlock_bh(&ar->data_lock);
713 ath10k_warn(ar, "failed to find peer %pM on vdev %i after creation\n",
714 addr, vdev_id);
715 ath10k_wmi_peer_delete(ar, vdev_id, addr);
716 return -ENOENT;
717 }
718
719 peer->vif = vif;
720 peer->sta = sta;
721
722 spin_unlock_bh(&ar->data_lock);
723
724 ar->num_peers++;
725
726 return 0;
727 }
728
729 static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
730 {
731 struct ath10k *ar = arvif->ar;
732 u32 param;
733 int ret;
734
735 param = ar->wmi.pdev_param->sta_kickout_th;
736 ret = ath10k_wmi_pdev_set_param(ar, param,
737 ATH10K_KICKOUT_THRESHOLD);
738 if (ret) {
739 ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
740 arvif->vdev_id, ret);
741 return ret;
742 }
743
744 param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
745 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
746 ATH10K_KEEPALIVE_MIN_IDLE);
747 if (ret) {
748 ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
749 arvif->vdev_id, ret);
750 return ret;
751 }
752
753 param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
754 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
755 ATH10K_KEEPALIVE_MAX_IDLE);
756 if (ret) {
757 ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
758 arvif->vdev_id, ret);
759 return ret;
760 }
761
762 param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
763 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
764 ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
765 if (ret) {
766 ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
767 arvif->vdev_id, ret);
768 return ret;
769 }
770
771 return 0;
772 }
773
774 static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
775 {
776 struct ath10k *ar = arvif->ar;
777 u32 vdev_param;
778
779 vdev_param = ar->wmi.vdev_param->rts_threshold;
780 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
781 }
782
783 static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
784 {
785 int ret;
786
787 lockdep_assert_held(&ar->conf_mutex);
788
789 ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
790 if (ret)
791 return ret;
792
793 ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
794 if (ret)
795 return ret;
796
797 ar->num_peers--;
798
799 return 0;
800 }
801
802 static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
803 {
804 struct ath10k_peer *peer, *tmp;
805 int peer_id;
806 int i;
807
808 lockdep_assert_held(&ar->conf_mutex);
809
810 spin_lock_bh(&ar->data_lock);
811 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
812 if (peer->vdev_id != vdev_id)
813 continue;
814
815 ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
816 peer->addr, vdev_id);
817
818 for_each_set_bit(peer_id, peer->peer_ids,
819 ATH10K_MAX_NUM_PEER_IDS) {
820 ar->peer_map[peer_id] = NULL;
821 }
822
823 /* Double check that peer is properly un-referenced from
824 * the peer_map
825 */
826 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
827 if (ar->peer_map[i] == peer) {
828 ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
829 peer->addr, peer, i);
830 ar->peer_map[i] = NULL;
831 }
832 }
833
834 list_del(&peer->list);
835 kfree(peer);
836 ar->num_peers--;
837 }
838 spin_unlock_bh(&ar->data_lock);
839 }
840
841 static void ath10k_peer_cleanup_all(struct ath10k *ar)
842 {
843 struct ath10k_peer *peer, *tmp;
844 int i;
845
846 lockdep_assert_held(&ar->conf_mutex);
847
848 spin_lock_bh(&ar->data_lock);
849 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
850 list_del(&peer->list);
851 kfree(peer);
852 }
853
854 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++)
855 ar->peer_map[i] = NULL;
856
857 spin_unlock_bh(&ar->data_lock);
858
859 ar->num_peers = 0;
860 ar->num_stations = 0;
861 }
862
863 static int ath10k_mac_tdls_peer_update(struct ath10k *ar, u32 vdev_id,
864 struct ieee80211_sta *sta,
865 enum wmi_tdls_peer_state state)
866 {
867 int ret;
868 struct wmi_tdls_peer_update_cmd_arg arg = {};
869 struct wmi_tdls_peer_capab_arg cap = {};
870 struct wmi_channel_arg chan_arg = {};
871
872 lockdep_assert_held(&ar->conf_mutex);
873
874 arg.vdev_id = vdev_id;
875 arg.peer_state = state;
876 ether_addr_copy(arg.addr, sta->addr);
877
878 cap.peer_max_sp = sta->max_sp;
879 cap.peer_uapsd_queues = sta->uapsd_queues;
880
881 if (state == WMI_TDLS_PEER_STATE_CONNECTED &&
882 !sta->tdls_initiator)
883 cap.is_peer_responder = 1;
884
885 ret = ath10k_wmi_tdls_peer_update(ar, &arg, &cap, &chan_arg);
886 if (ret) {
887 ath10k_warn(ar, "failed to update tdls peer %pM on vdev %i: %i\n",
888 arg.addr, vdev_id, ret);
889 return ret;
890 }
891
892 return 0;
893 }
894
895 /************************/
896 /* Interface management */
897 /************************/
898
899 void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
900 {
901 struct ath10k *ar = arvif->ar;
902
903 lockdep_assert_held(&ar->data_lock);
904
905 if (!arvif->beacon)
906 return;
907
908 if (!arvif->beacon_buf)
909 dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
910 arvif->beacon->len, DMA_TO_DEVICE);
911
912 if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
913 arvif->beacon_state != ATH10K_BEACON_SENT))
914 return;
915
916 dev_kfree_skb_any(arvif->beacon);
917
918 arvif->beacon = NULL;
919 arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
920 }
921
922 static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
923 {
924 struct ath10k *ar = arvif->ar;
925
926 lockdep_assert_held(&ar->data_lock);
927
928 ath10k_mac_vif_beacon_free(arvif);
929
930 if (arvif->beacon_buf) {
931 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
932 arvif->beacon_buf, arvif->beacon_paddr);
933 arvif->beacon_buf = NULL;
934 }
935 }
936
937 static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
938 {
939 unsigned long time_left;
940
941 lockdep_assert_held(&ar->conf_mutex);
942
943 if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
944 return -ESHUTDOWN;
945
946 time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
947 ATH10K_VDEV_SETUP_TIMEOUT_HZ);
948 if (time_left == 0)
949 return -ETIMEDOUT;
950
951 return 0;
952 }
953
954 static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
955 {
956 struct cfg80211_chan_def *chandef = NULL;
957 struct ieee80211_channel *channel = NULL;
958 struct wmi_vdev_start_request_arg arg = {};
959 int ret = 0;
960
961 lockdep_assert_held(&ar->conf_mutex);
962
963 ieee80211_iter_chan_contexts_atomic(ar->hw,
964 ath10k_mac_get_any_chandef_iter,
965 &chandef);
966 if (WARN_ON_ONCE(!chandef))
967 return -ENOENT;
968
969 channel = chandef->chan;
970
971 arg.vdev_id = vdev_id;
972 arg.channel.freq = channel->center_freq;
973 arg.channel.band_center_freq1 = chandef->center_freq1;
974
975 /* TODO setup this dynamically, what in case we
976 don't have any vifs? */
977 arg.channel.mode = chan_to_phymode(chandef);
978 arg.channel.chan_radar =
979 !!(channel->flags & IEEE80211_CHAN_RADAR);
980
981 arg.channel.min_power = 0;
982 arg.channel.max_power = channel->max_power * 2;
983 arg.channel.max_reg_power = channel->max_reg_power * 2;
984 arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
985
986 reinit_completion(&ar->vdev_setup_done);
987
988 ret = ath10k_wmi_vdev_start(ar, &arg);
989 if (ret) {
990 ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
991 vdev_id, ret);
992 return ret;
993 }
994
995 ret = ath10k_vdev_setup_sync(ar);
996 if (ret) {
997 ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
998 vdev_id, ret);
999 return ret;
1000 }
1001
1002 ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
1003 if (ret) {
1004 ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
1005 vdev_id, ret);
1006 goto vdev_stop;
1007 }
1008
1009 ar->monitor_vdev_id = vdev_id;
1010
1011 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
1012 ar->monitor_vdev_id);
1013 return 0;
1014
1015 vdev_stop:
1016 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
1017 if (ret)
1018 ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
1019 ar->monitor_vdev_id, ret);
1020
1021 return ret;
1022 }
1023
1024 static int ath10k_monitor_vdev_stop(struct ath10k *ar)
1025 {
1026 int ret = 0;
1027
1028 lockdep_assert_held(&ar->conf_mutex);
1029
1030 ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
1031 if (ret)
1032 ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
1033 ar->monitor_vdev_id, ret);
1034
1035 reinit_completion(&ar->vdev_setup_done);
1036
1037 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
1038 if (ret)
1039 ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
1040 ar->monitor_vdev_id, ret);
1041
1042 ret = ath10k_vdev_setup_sync(ar);
1043 if (ret)
1044 ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
1045 ar->monitor_vdev_id, ret);
1046
1047 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
1048 ar->monitor_vdev_id);
1049 return ret;
1050 }
1051
1052 static int ath10k_monitor_vdev_create(struct ath10k *ar)
1053 {
1054 int bit, ret = 0;
1055
1056 lockdep_assert_held(&ar->conf_mutex);
1057
1058 if (ar->free_vdev_map == 0) {
1059 ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
1060 return -ENOMEM;
1061 }
1062
1063 bit = __ffs64(ar->free_vdev_map);
1064
1065 ar->monitor_vdev_id = bit;
1066
1067 ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
1068 WMI_VDEV_TYPE_MONITOR,
1069 0, ar->mac_addr);
1070 if (ret) {
1071 ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
1072 ar->monitor_vdev_id, ret);
1073 return ret;
1074 }
1075
1076 ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
1077 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
1078 ar->monitor_vdev_id);
1079
1080 return 0;
1081 }
1082
1083 static int ath10k_monitor_vdev_delete(struct ath10k *ar)
1084 {
1085 int ret = 0;
1086
1087 lockdep_assert_held(&ar->conf_mutex);
1088
1089 ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
1090 if (ret) {
1091 ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
1092 ar->monitor_vdev_id, ret);
1093 return ret;
1094 }
1095
1096 ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
1097
1098 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
1099 ar->monitor_vdev_id);
1100 return ret;
1101 }
1102
1103 static int ath10k_monitor_start(struct ath10k *ar)
1104 {
1105 int ret;
1106
1107 lockdep_assert_held(&ar->conf_mutex);
1108
1109 ret = ath10k_monitor_vdev_create(ar);
1110 if (ret) {
1111 ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
1112 return ret;
1113 }
1114
1115 ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
1116 if (ret) {
1117 ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
1118 ath10k_monitor_vdev_delete(ar);
1119 return ret;
1120 }
1121
1122 ar->monitor_started = true;
1123 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
1124
1125 return 0;
1126 }
1127
1128 static int ath10k_monitor_stop(struct ath10k *ar)
1129 {
1130 int ret;
1131
1132 lockdep_assert_held(&ar->conf_mutex);
1133
1134 ret = ath10k_monitor_vdev_stop(ar);
1135 if (ret) {
1136 ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
1137 return ret;
1138 }
1139
1140 ret = ath10k_monitor_vdev_delete(ar);
1141 if (ret) {
1142 ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
1143 return ret;
1144 }
1145
1146 ar->monitor_started = false;
1147 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
1148
1149 return 0;
1150 }
1151
1152 static bool ath10k_mac_monitor_vdev_is_needed(struct ath10k *ar)
1153 {
1154 int num_ctx;
1155
1156 /* At least one chanctx is required to derive a channel to start
1157 * monitor vdev on.
1158 */
1159 num_ctx = ath10k_mac_num_chanctxs(ar);
1160 if (num_ctx == 0)
1161 return false;
1162
1163 /* If there's already an existing special monitor interface then don't
1164 * bother creating another monitor vdev.
1165 */
1166 if (ar->monitor_arvif)
1167 return false;
1168
1169 return ar->monitor ||
1170 (!test_bit(ATH10K_FW_FEATURE_ALLOWS_MESH_BCAST,
1171 ar->running_fw->fw_file.fw_features) &&
1172 (ar->filter_flags & FIF_OTHER_BSS)) ||
1173 test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1174 }
1175
1176 static bool ath10k_mac_monitor_vdev_is_allowed(struct ath10k *ar)
1177 {
1178 int num_ctx;
1179
1180 num_ctx = ath10k_mac_num_chanctxs(ar);
1181
1182 /* FIXME: Current interface combinations and cfg80211/mac80211 code
1183 * shouldn't allow this but make sure to prevent handling the following
1184 * case anyway since multi-channel DFS hasn't been tested at all.
1185 */
1186 if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) && num_ctx > 1)
1187 return false;
1188
1189 return true;
1190 }
1191
1192 static int ath10k_monitor_recalc(struct ath10k *ar)
1193 {
1194 bool needed;
1195 bool allowed;
1196 int ret;
1197
1198 lockdep_assert_held(&ar->conf_mutex);
1199
1200 needed = ath10k_mac_monitor_vdev_is_needed(ar);
1201 allowed = ath10k_mac_monitor_vdev_is_allowed(ar);
1202
1203 ath10k_dbg(ar, ATH10K_DBG_MAC,
1204 "mac monitor recalc started? %d needed? %d allowed? %d\n",
1205 ar->monitor_started, needed, allowed);
1206
1207 if (WARN_ON(needed && !allowed)) {
1208 if (ar->monitor_started) {
1209 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopping disallowed monitor\n");
1210
1211 ret = ath10k_monitor_stop(ar);
1212 if (ret)
1213 ath10k_warn(ar, "failed to stop disallowed monitor: %d\n",
1214 ret);
1215 /* not serious */
1216 }
1217
1218 return -EPERM;
1219 }
1220
1221 if (needed == ar->monitor_started)
1222 return 0;
1223
1224 if (needed)
1225 return ath10k_monitor_start(ar);
1226 else
1227 return ath10k_monitor_stop(ar);
1228 }
1229
1230 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
1231 {
1232 struct ath10k *ar = arvif->ar;
1233 u32 vdev_param, rts_cts = 0;
1234
1235 lockdep_assert_held(&ar->conf_mutex);
1236
1237 vdev_param = ar->wmi.vdev_param->enable_rtscts;
1238
1239 rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
1240
1241 if (arvif->num_legacy_stations > 0)
1242 rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
1243 WMI_RTSCTS_PROFILE);
1244 else
1245 rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
1246 WMI_RTSCTS_PROFILE);
1247
1248 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
1249 rts_cts);
1250 }
1251
1252 static int ath10k_start_cac(struct ath10k *ar)
1253 {
1254 int ret;
1255
1256 lockdep_assert_held(&ar->conf_mutex);
1257
1258 set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1259
1260 ret = ath10k_monitor_recalc(ar);
1261 if (ret) {
1262 ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1263 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1264 return ret;
1265 }
1266
1267 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1268 ar->monitor_vdev_id);
1269
1270 return 0;
1271 }
1272
1273 static int ath10k_stop_cac(struct ath10k *ar)
1274 {
1275 lockdep_assert_held(&ar->conf_mutex);
1276
1277 /* CAC is not running - do nothing */
1278 if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
1279 return 0;
1280
1281 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1282 ath10k_monitor_stop(ar);
1283
1284 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1285
1286 return 0;
1287 }
1288
1289 static void ath10k_mac_has_radar_iter(struct ieee80211_hw *hw,
1290 struct ieee80211_chanctx_conf *conf,
1291 void *data)
1292 {
1293 bool *ret = data;
1294
1295 if (!*ret && conf->radar_enabled)
1296 *ret = true;
1297 }
1298
1299 static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
1300 {
1301 bool has_radar = false;
1302
1303 ieee80211_iter_chan_contexts_atomic(ar->hw,
1304 ath10k_mac_has_radar_iter,
1305 &has_radar);
1306
1307 return has_radar;
1308 }
1309
1310 static void ath10k_recalc_radar_detection(struct ath10k *ar)
1311 {
1312 int ret;
1313
1314 lockdep_assert_held(&ar->conf_mutex);
1315
1316 ath10k_stop_cac(ar);
1317
1318 if (!ath10k_mac_has_radar_enabled(ar))
1319 return;
1320
1321 if (ar->num_started_vdevs > 0)
1322 return;
1323
1324 ret = ath10k_start_cac(ar);
1325 if (ret) {
1326 /*
1327 * Not possible to start CAC on current channel so starting
1328 * radiation is not allowed, make this channel DFS_UNAVAILABLE
1329 * by indicating that radar was detected.
1330 */
1331 ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1332 ieee80211_radar_detected(ar->hw);
1333 }
1334 }
1335
1336 static int ath10k_vdev_stop(struct ath10k_vif *arvif)
1337 {
1338 struct ath10k *ar = arvif->ar;
1339 int ret;
1340
1341 lockdep_assert_held(&ar->conf_mutex);
1342
1343 reinit_completion(&ar->vdev_setup_done);
1344
1345 ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
1346 if (ret) {
1347 ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
1348 arvif->vdev_id, ret);
1349 return ret;
1350 }
1351
1352 ret = ath10k_vdev_setup_sync(ar);
1353 if (ret) {
1354 ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
1355 arvif->vdev_id, ret);
1356 return ret;
1357 }
1358
1359 WARN_ON(ar->num_started_vdevs == 0);
1360
1361 if (ar->num_started_vdevs != 0) {
1362 ar->num_started_vdevs--;
1363 ath10k_recalc_radar_detection(ar);
1364 }
1365
1366 return ret;
1367 }
1368
1369 static int ath10k_vdev_start_restart(struct ath10k_vif *arvif,
1370 const struct cfg80211_chan_def *chandef,
1371 bool restart)
1372 {
1373 struct ath10k *ar = arvif->ar;
1374 struct wmi_vdev_start_request_arg arg = {};
1375 int ret = 0;
1376
1377 lockdep_assert_held(&ar->conf_mutex);
1378
1379 reinit_completion(&ar->vdev_setup_done);
1380
1381 arg.vdev_id = arvif->vdev_id;
1382 arg.dtim_period = arvif->dtim_period;
1383 arg.bcn_intval = arvif->beacon_interval;
1384
1385 arg.channel.freq = chandef->chan->center_freq;
1386 arg.channel.band_center_freq1 = chandef->center_freq1;
1387 arg.channel.mode = chan_to_phymode(chandef);
1388
1389 arg.channel.min_power = 0;
1390 arg.channel.max_power = chandef->chan->max_power * 2;
1391 arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
1392 arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
1393
1394 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
1395 arg.ssid = arvif->u.ap.ssid;
1396 arg.ssid_len = arvif->u.ap.ssid_len;
1397 arg.hidden_ssid = arvif->u.ap.hidden_ssid;
1398
1399 /* For now allow DFS for AP mode */
1400 arg.channel.chan_radar =
1401 !!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
1402 } else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
1403 arg.ssid = arvif->vif->bss_conf.ssid;
1404 arg.ssid_len = arvif->vif->bss_conf.ssid_len;
1405 }
1406
1407 ath10k_dbg(ar, ATH10K_DBG_MAC,
1408 "mac vdev %d start center_freq %d phymode %s\n",
1409 arg.vdev_id, arg.channel.freq,
1410 ath10k_wmi_phymode_str(arg.channel.mode));
1411
1412 if (restart)
1413 ret = ath10k_wmi_vdev_restart(ar, &arg);
1414 else
1415 ret = ath10k_wmi_vdev_start(ar, &arg);
1416
1417 if (ret) {
1418 ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
1419 arg.vdev_id, ret);
1420 return ret;
1421 }
1422
1423 ret = ath10k_vdev_setup_sync(ar);
1424 if (ret) {
1425 ath10k_warn(ar,
1426 "failed to synchronize setup for vdev %i restart %d: %d\n",
1427 arg.vdev_id, restart, ret);
1428 return ret;
1429 }
1430
1431 ar->num_started_vdevs++;
1432 ath10k_recalc_radar_detection(ar);
1433
1434 return ret;
1435 }
1436
1437 static int ath10k_vdev_start(struct ath10k_vif *arvif,
1438 const struct cfg80211_chan_def *def)
1439 {
1440 return ath10k_vdev_start_restart(arvif, def, false);
1441 }
1442
1443 static int ath10k_vdev_restart(struct ath10k_vif *arvif,
1444 const struct cfg80211_chan_def *def)
1445 {
1446 return ath10k_vdev_start_restart(arvif, def, true);
1447 }
1448
1449 static int ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif *arvif,
1450 struct sk_buff *bcn)
1451 {
1452 struct ath10k *ar = arvif->ar;
1453 struct ieee80211_mgmt *mgmt;
1454 const u8 *p2p_ie;
1455 int ret;
1456
1457 if (arvif->vif->type != NL80211_IFTYPE_AP || !arvif->vif->p2p)
1458 return 0;
1459
1460 mgmt = (void *)bcn->data;
1461 p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1462 mgmt->u.beacon.variable,
1463 bcn->len - (mgmt->u.beacon.variable -
1464 bcn->data));
1465 if (!p2p_ie)
1466 return -ENOENT;
1467
1468 ret = ath10k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
1469 if (ret) {
1470 ath10k_warn(ar, "failed to submit p2p go bcn ie for vdev %i: %d\n",
1471 arvif->vdev_id, ret);
1472 return ret;
1473 }
1474
1475 return 0;
1476 }
1477
1478 static int ath10k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
1479 u8 oui_type, size_t ie_offset)
1480 {
1481 size_t len;
1482 const u8 *next;
1483 const u8 *end;
1484 u8 *ie;
1485
1486 if (WARN_ON(skb->len < ie_offset))
1487 return -EINVAL;
1488
1489 ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
1490 skb->data + ie_offset,
1491 skb->len - ie_offset);
1492 if (!ie)
1493 return -ENOENT;
1494
1495 len = ie[1] + 2;
1496 end = skb->data + skb->len;
1497 next = ie + len;
1498
1499 if (WARN_ON(next > end))
1500 return -EINVAL;
1501
1502 memmove(ie, next, end - next);
1503 skb_trim(skb, skb->len - len);
1504
1505 return 0;
1506 }
1507
1508 static int ath10k_mac_setup_bcn_tmpl(struct ath10k_vif *arvif)
1509 {
1510 struct ath10k *ar = arvif->ar;
1511 struct ieee80211_hw *hw = ar->hw;
1512 struct ieee80211_vif *vif = arvif->vif;
1513 struct ieee80211_mutable_offsets offs = {};
1514 struct sk_buff *bcn;
1515 int ret;
1516
1517 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1518 return 0;
1519
1520 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
1521 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
1522 return 0;
1523
1524 bcn = ieee80211_beacon_get_template(hw, vif, &offs);
1525 if (!bcn) {
1526 ath10k_warn(ar, "failed to get beacon template from mac80211\n");
1527 return -EPERM;
1528 }
1529
1530 ret = ath10k_mac_setup_bcn_p2p_ie(arvif, bcn);
1531 if (ret) {
1532 ath10k_warn(ar, "failed to setup p2p go bcn ie: %d\n", ret);
1533 kfree_skb(bcn);
1534 return ret;
1535 }
1536
1537 /* P2P IE is inserted by firmware automatically (as configured above)
1538 * so remove it from the base beacon template to avoid duplicate P2P
1539 * IEs in beacon frames.
1540 */
1541 ath10k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1542 offsetof(struct ieee80211_mgmt,
1543 u.beacon.variable));
1544
1545 ret = ath10k_wmi_bcn_tmpl(ar, arvif->vdev_id, offs.tim_offset, bcn, 0,
1546 0, NULL, 0);
1547 kfree_skb(bcn);
1548
1549 if (ret) {
1550 ath10k_warn(ar, "failed to submit beacon template command: %d\n",
1551 ret);
1552 return ret;
1553 }
1554
1555 return 0;
1556 }
1557
1558 static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
1559 {
1560 struct ath10k *ar = arvif->ar;
1561 struct ieee80211_hw *hw = ar->hw;
1562 struct ieee80211_vif *vif = arvif->vif;
1563 struct sk_buff *prb;
1564 int ret;
1565
1566 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1567 return 0;
1568
1569 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1570 return 0;
1571
1572 prb = ieee80211_proberesp_get(hw, vif);
1573 if (!prb) {
1574 ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
1575 return -EPERM;
1576 }
1577
1578 ret = ath10k_wmi_prb_tmpl(ar, arvif->vdev_id, prb);
1579 kfree_skb(prb);
1580
1581 if (ret) {
1582 ath10k_warn(ar, "failed to submit probe resp template command: %d\n",
1583 ret);
1584 return ret;
1585 }
1586
1587 return 0;
1588 }
1589
1590 static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
1591 {
1592 struct ath10k *ar = arvif->ar;
1593 struct cfg80211_chan_def def;
1594 int ret;
1595
1596 /* When originally vdev is started during assign_vif_chanctx() some
1597 * information is missing, notably SSID. Firmware revisions with beacon
1598 * offloading require the SSID to be provided during vdev (re)start to
1599 * handle hidden SSID properly.
1600 *
1601 * Vdev restart must be done after vdev has been both started and
1602 * upped. Otherwise some firmware revisions (at least 10.2) fail to
1603 * deliver vdev restart response event causing timeouts during vdev
1604 * syncing in ath10k.
1605 *
1606 * Note: The vdev down/up and template reinstallation could be skipped
1607 * since only wmi-tlv firmware are known to have beacon offload and
1608 * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
1609 * response delivery. It's probably more robust to keep it as is.
1610 */
1611 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1612 return 0;
1613
1614 if (WARN_ON(!arvif->is_started))
1615 return -EINVAL;
1616
1617 if (WARN_ON(!arvif->is_up))
1618 return -EINVAL;
1619
1620 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
1621 return -EINVAL;
1622
1623 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1624 if (ret) {
1625 ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
1626 arvif->vdev_id, ret);
1627 return ret;
1628 }
1629
1630 /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
1631 * firmware will crash upon vdev up.
1632 */
1633
1634 ret = ath10k_mac_setup_bcn_tmpl(arvif);
1635 if (ret) {
1636 ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
1637 return ret;
1638 }
1639
1640 ret = ath10k_mac_setup_prb_tmpl(arvif);
1641 if (ret) {
1642 ath10k_warn(ar, "failed to update presp template: %d\n", ret);
1643 return ret;
1644 }
1645
1646 ret = ath10k_vdev_restart(arvif, &def);
1647 if (ret) {
1648 ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
1649 arvif->vdev_id, ret);
1650 return ret;
1651 }
1652
1653 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1654 arvif->bssid);
1655 if (ret) {
1656 ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
1657 arvif->vdev_id, ret);
1658 return ret;
1659 }
1660
1661 return 0;
1662 }
1663
1664 static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1665 struct ieee80211_bss_conf *info)
1666 {
1667 struct ath10k *ar = arvif->ar;
1668 int ret = 0;
1669
1670 lockdep_assert_held(&arvif->ar->conf_mutex);
1671
1672 if (!info->enable_beacon) {
1673 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1674 if (ret)
1675 ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
1676 arvif->vdev_id, ret);
1677
1678 arvif->is_up = false;
1679
1680 spin_lock_bh(&arvif->ar->data_lock);
1681 ath10k_mac_vif_beacon_free(arvif);
1682 spin_unlock_bh(&arvif->ar->data_lock);
1683
1684 return;
1685 }
1686
1687 arvif->tx_seq_no = 0x1000;
1688
1689 arvif->aid = 0;
1690 ether_addr_copy(arvif->bssid, info->bssid);
1691
1692 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1693 arvif->bssid);
1694 if (ret) {
1695 ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1696 arvif->vdev_id, ret);
1697 return;
1698 }
1699
1700 arvif->is_up = true;
1701
1702 ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
1703 if (ret) {
1704 ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
1705 arvif->vdev_id, ret);
1706 return;
1707 }
1708
1709 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1710 }
1711
1712 static void ath10k_control_ibss(struct ath10k_vif *arvif,
1713 struct ieee80211_bss_conf *info,
1714 const u8 self_peer[ETH_ALEN])
1715 {
1716 struct ath10k *ar = arvif->ar;
1717 u32 vdev_param;
1718 int ret = 0;
1719
1720 lockdep_assert_held(&arvif->ar->conf_mutex);
1721
1722 if (!info->ibss_joined) {
1723 if (is_zero_ether_addr(arvif->bssid))
1724 return;
1725
1726 eth_zero_addr(arvif->bssid);
1727
1728 return;
1729 }
1730
1731 vdev_param = arvif->ar->wmi.vdev_param->atim_window;
1732 ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1733 ATH10K_DEFAULT_ATIM);
1734 if (ret)
1735 ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1736 arvif->vdev_id, ret);
1737 }
1738
1739 static int ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif *arvif)
1740 {
1741 struct ath10k *ar = arvif->ar;
1742 u32 param;
1743 u32 value;
1744 int ret;
1745
1746 lockdep_assert_held(&arvif->ar->conf_mutex);
1747
1748 if (arvif->u.sta.uapsd)
1749 value = WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER;
1750 else
1751 value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
1752
1753 param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
1754 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param, value);
1755 if (ret) {
1756 ath10k_warn(ar, "failed to submit ps wake threshold %u on vdev %i: %d\n",
1757 value, arvif->vdev_id, ret);
1758 return ret;
1759 }
1760
1761 return 0;
1762 }
1763
1764 static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
1765 {
1766 struct ath10k *ar = arvif->ar;
1767 u32 param;
1768 u32 value;
1769 int ret;
1770
1771 lockdep_assert_held(&arvif->ar->conf_mutex);
1772
1773 if (arvif->u.sta.uapsd)
1774 value = WMI_STA_PS_PSPOLL_COUNT_UAPSD;
1775 else
1776 value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
1777
1778 param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
1779 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
1780 param, value);
1781 if (ret) {
1782 ath10k_warn(ar, "failed to submit ps poll count %u on vdev %i: %d\n",
1783 value, arvif->vdev_id, ret);
1784 return ret;
1785 }
1786
1787 return 0;
1788 }
1789
1790 static int ath10k_mac_num_vifs_started(struct ath10k *ar)
1791 {
1792 struct ath10k_vif *arvif;
1793 int num = 0;
1794
1795 lockdep_assert_held(&ar->conf_mutex);
1796
1797 list_for_each_entry(arvif, &ar->arvifs, list)
1798 if (arvif->is_started)
1799 num++;
1800
1801 return num;
1802 }
1803
1804 static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1805 {
1806 struct ath10k *ar = arvif->ar;
1807 struct ieee80211_vif *vif = arvif->vif;
1808 struct ieee80211_conf *conf = &ar->hw->conf;
1809 enum wmi_sta_powersave_param param;
1810 enum wmi_sta_ps_mode psmode;
1811 int ret;
1812 int ps_timeout;
1813 bool enable_ps;
1814
1815 lockdep_assert_held(&arvif->ar->conf_mutex);
1816
1817 if (arvif->vif->type != NL80211_IFTYPE_STATION)
1818 return 0;
1819
1820 enable_ps = arvif->ps;
1821
1822 if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
1823 !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
1824 ar->running_fw->fw_file.fw_features)) {
1825 ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
1826 arvif->vdev_id);
1827 enable_ps = false;
1828 }
1829
1830 if (!arvif->is_started) {
1831 /* mac80211 can update vif powersave state while disconnected.
1832 * Firmware doesn't behave nicely and consumes more power than
1833 * necessary if PS is disabled on a non-started vdev. Hence
1834 * force-enable PS for non-running vdevs.
1835 */
1836 psmode = WMI_STA_PS_MODE_ENABLED;
1837 } else if (enable_ps) {
1838 psmode = WMI_STA_PS_MODE_ENABLED;
1839 param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
1840
1841 ps_timeout = conf->dynamic_ps_timeout;
1842 if (ps_timeout == 0) {
1843 /* Firmware doesn't like 0 */
1844 ps_timeout = ieee80211_tu_to_usec(
1845 vif->bss_conf.beacon_int) / 1000;
1846 }
1847
1848 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1849 ps_timeout);
1850 if (ret) {
1851 ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1852 arvif->vdev_id, ret);
1853 return ret;
1854 }
1855 } else {
1856 psmode = WMI_STA_PS_MODE_DISABLED;
1857 }
1858
1859 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
1860 arvif->vdev_id, psmode ? "enable" : "disable");
1861
1862 ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
1863 if (ret) {
1864 ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1865 psmode, arvif->vdev_id, ret);
1866 return ret;
1867 }
1868
1869 return 0;
1870 }
1871
1872 static int ath10k_mac_vif_disable_keepalive(struct ath10k_vif *arvif)
1873 {
1874 struct ath10k *ar = arvif->ar;
1875 struct wmi_sta_keepalive_arg arg = {};
1876 int ret;
1877
1878 lockdep_assert_held(&arvif->ar->conf_mutex);
1879
1880 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
1881 return 0;
1882
1883 if (!test_bit(WMI_SERVICE_STA_KEEP_ALIVE, ar->wmi.svc_map))
1884 return 0;
1885
1886 /* Some firmware revisions have a bug and ignore the `enabled` field.
1887 * Instead use the interval to disable the keepalive.
1888 */
1889 arg.vdev_id = arvif->vdev_id;
1890 arg.enabled = 1;
1891 arg.method = WMI_STA_KEEPALIVE_METHOD_NULL_FRAME;
1892 arg.interval = WMI_STA_KEEPALIVE_INTERVAL_DISABLE;
1893
1894 ret = ath10k_wmi_sta_keepalive(ar, &arg);
1895 if (ret) {
1896 ath10k_warn(ar, "failed to submit keepalive on vdev %i: %d\n",
1897 arvif->vdev_id, ret);
1898 return ret;
1899 }
1900
1901 return 0;
1902 }
1903
1904 static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif)
1905 {
1906 struct ath10k *ar = arvif->ar;
1907 struct ieee80211_vif *vif = arvif->vif;
1908 int ret;
1909
1910 lockdep_assert_held(&arvif->ar->conf_mutex);
1911
1912 if (WARN_ON(!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)))
1913 return;
1914
1915 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1916 return;
1917
1918 if (!vif->csa_active)
1919 return;
1920
1921 if (!arvif->is_up)
1922 return;
1923
1924 if (!ieee80211_csa_is_complete(vif)) {
1925 ieee80211_csa_update_counter(vif);
1926
1927 ret = ath10k_mac_setup_bcn_tmpl(arvif);
1928 if (ret)
1929 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
1930 ret);
1931
1932 ret = ath10k_mac_setup_prb_tmpl(arvif);
1933 if (ret)
1934 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
1935 ret);
1936 } else {
1937 ieee80211_csa_finish(vif);
1938 }
1939 }
1940
1941 static void ath10k_mac_vif_ap_csa_work(struct work_struct *work)
1942 {
1943 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
1944 ap_csa_work);
1945 struct ath10k *ar = arvif->ar;
1946
1947 mutex_lock(&ar->conf_mutex);
1948 ath10k_mac_vif_ap_csa_count_down(arvif);
1949 mutex_unlock(&ar->conf_mutex);
1950 }
1951
1952 static void ath10k_mac_handle_beacon_iter(void *data, u8 *mac,
1953 struct ieee80211_vif *vif)
1954 {
1955 struct sk_buff *skb = data;
1956 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1957 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1958
1959 if (vif->type != NL80211_IFTYPE_STATION)
1960 return;
1961
1962 if (!ether_addr_equal(mgmt->bssid, vif->bss_conf.bssid))
1963 return;
1964
1965 cancel_delayed_work(&arvif->connection_loss_work);
1966 }
1967
1968 void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb)
1969 {
1970 ieee80211_iterate_active_interfaces_atomic(ar->hw,
1971 IEEE80211_IFACE_ITER_NORMAL,
1972 ath10k_mac_handle_beacon_iter,
1973 skb);
1974 }
1975
1976 static void ath10k_mac_handle_beacon_miss_iter(void *data, u8 *mac,
1977 struct ieee80211_vif *vif)
1978 {
1979 u32 *vdev_id = data;
1980 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1981 struct ath10k *ar = arvif->ar;
1982 struct ieee80211_hw *hw = ar->hw;
1983
1984 if (arvif->vdev_id != *vdev_id)
1985 return;
1986
1987 if (!arvif->is_up)
1988 return;
1989
1990 ieee80211_beacon_loss(vif);
1991
1992 /* Firmware doesn't report beacon loss events repeatedly. If AP probe
1993 * (done by mac80211) succeeds but beacons do not resume then it
1994 * doesn't make sense to continue operation. Queue connection loss work
1995 * which can be cancelled when beacon is received.
1996 */
1997 ieee80211_queue_delayed_work(hw, &arvif->connection_loss_work,
1998 ATH10K_CONNECTION_LOSS_HZ);
1999 }
2000
2001 void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id)
2002 {
2003 ieee80211_iterate_active_interfaces_atomic(ar->hw,
2004 IEEE80211_IFACE_ITER_NORMAL,
2005 ath10k_mac_handle_beacon_miss_iter,
2006 &vdev_id);
2007 }
2008
2009 static void ath10k_mac_vif_sta_connection_loss_work(struct work_struct *work)
2010 {
2011 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
2012 connection_loss_work.work);
2013 struct ieee80211_vif *vif = arvif->vif;
2014
2015 if (!arvif->is_up)
2016 return;
2017
2018 ieee80211_connection_loss(vif);
2019 }
2020
2021 /**********************/
2022 /* Station management */
2023 /**********************/
2024
2025 static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
2026 struct ieee80211_vif *vif)
2027 {
2028 /* Some firmware revisions have unstable STA powersave when listen
2029 * interval is set too high (e.g. 5). The symptoms are firmware doesn't
2030 * generate NullFunc frames properly even if buffered frames have been
2031 * indicated in Beacon TIM. Firmware would seldom wake up to pull
2032 * buffered frames. Often pinging the device from AP would simply fail.
2033 *
2034 * As a workaround set it to 1.
2035 */
2036 if (vif->type == NL80211_IFTYPE_STATION)
2037 return 1;
2038
2039 return ar->hw->conf.listen_interval;
2040 }
2041
2042 static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
2043 struct ieee80211_vif *vif,
2044 struct ieee80211_sta *sta,
2045 struct wmi_peer_assoc_complete_arg *arg)
2046 {
2047 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2048 u32 aid;
2049
2050 lockdep_assert_held(&ar->conf_mutex);
2051
2052 if (vif->type == NL80211_IFTYPE_STATION)
2053 aid = vif->bss_conf.aid;
2054 else
2055 aid = sta->aid;
2056
2057 ether_addr_copy(arg->addr, sta->addr);
2058 arg->vdev_id = arvif->vdev_id;
2059 arg->peer_aid = aid;
2060 arg->peer_flags |= arvif->ar->wmi.peer_flags->auth;
2061 arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
2062 arg->peer_num_spatial_streams = 1;
2063 arg->peer_caps = vif->bss_conf.assoc_capability;
2064 }
2065
2066 static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
2067 struct ieee80211_vif *vif,
2068 struct ieee80211_sta *sta,
2069 struct wmi_peer_assoc_complete_arg *arg)
2070 {
2071 struct ieee80211_bss_conf *info = &vif->bss_conf;
2072 struct cfg80211_chan_def def;
2073 struct cfg80211_bss *bss;
2074 const u8 *rsnie = NULL;
2075 const u8 *wpaie = NULL;
2076
2077 lockdep_assert_held(&ar->conf_mutex);
2078
2079 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2080 return;
2081
2082 bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid, NULL, 0,
2083 IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
2084 if (bss) {
2085 const struct cfg80211_bss_ies *ies;
2086
2087 rcu_read_lock();
2088 rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
2089
2090 ies = rcu_dereference(bss->ies);
2091
2092 wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
2093 WLAN_OUI_TYPE_MICROSOFT_WPA,
2094 ies->data,
2095 ies->len);
2096 rcu_read_unlock();
2097 cfg80211_put_bss(ar->hw->wiphy, bss);
2098 }
2099
2100 /* FIXME: base on RSN IE/WPA IE is a correct idea? */
2101 if (rsnie || wpaie) {
2102 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
2103 arg->peer_flags |= ar->wmi.peer_flags->need_ptk_4_way;
2104 }
2105
2106 if (wpaie) {
2107 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
2108 arg->peer_flags |= ar->wmi.peer_flags->need_gtk_2_way;
2109 }
2110
2111 if (sta->mfp &&
2112 test_bit(ATH10K_FW_FEATURE_MFP_SUPPORT,
2113 ar->running_fw->fw_file.fw_features)) {
2114 arg->peer_flags |= ar->wmi.peer_flags->pmf;
2115 }
2116 }
2117
2118 static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
2119 struct ieee80211_vif *vif,
2120 struct ieee80211_sta *sta,
2121 struct wmi_peer_assoc_complete_arg *arg)
2122 {
2123 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2124 struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
2125 struct cfg80211_chan_def def;
2126 const struct ieee80211_supported_band *sband;
2127 const struct ieee80211_rate *rates;
2128 enum nl80211_band band;
2129 u32 ratemask;
2130 u8 rate;
2131 int i;
2132
2133 lockdep_assert_held(&ar->conf_mutex);
2134
2135 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2136 return;
2137
2138 band = def.chan->band;
2139 sband = ar->hw->wiphy->bands[band];
2140 ratemask = sta->supp_rates[band];
2141 ratemask &= arvif->bitrate_mask.control[band].legacy;
2142 rates = sband->bitrates;
2143
2144 rateset->num_rates = 0;
2145
2146 for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
2147 if (!(ratemask & 1))
2148 continue;
2149
2150 rate = ath10k_mac_bitrate_to_rate(rates->bitrate);
2151 rateset->rates[rateset->num_rates] = rate;
2152 rateset->num_rates++;
2153 }
2154 }
2155
2156 static bool
2157 ath10k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
2158 {
2159 int nss;
2160
2161 for (nss = 0; nss < IEEE80211_HT_MCS_MASK_LEN; nss++)
2162 if (ht_mcs_mask[nss])
2163 return false;
2164
2165 return true;
2166 }
2167
2168 static bool
2169 ath10k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
2170 {
2171 int nss;
2172
2173 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++)
2174 if (vht_mcs_mask[nss])
2175 return false;
2176
2177 return true;
2178 }
2179
2180 static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
2181 struct ieee80211_vif *vif,
2182 struct ieee80211_sta *sta,
2183 struct wmi_peer_assoc_complete_arg *arg)
2184 {
2185 const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
2186 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2187 struct cfg80211_chan_def def;
2188 enum nl80211_band band;
2189 const u8 *ht_mcs_mask;
2190 const u16 *vht_mcs_mask;
2191 int i, n;
2192 u8 max_nss;
2193 u32 stbc;
2194
2195 lockdep_assert_held(&ar->conf_mutex);
2196
2197 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2198 return;
2199
2200 if (!ht_cap->ht_supported)
2201 return;
2202
2203 band = def.chan->band;
2204 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2205 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2206
2207 if (ath10k_peer_assoc_h_ht_masked(ht_mcs_mask) &&
2208 ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2209 return;
2210
2211 arg->peer_flags |= ar->wmi.peer_flags->ht;
2212 arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2213 ht_cap->ampdu_factor)) - 1;
2214
2215 arg->peer_mpdu_density =
2216 ath10k_parse_mpdudensity(ht_cap->ampdu_density);
2217
2218 arg->peer_ht_caps = ht_cap->cap;
2219 arg->peer_rate_caps |= WMI_RC_HT_FLAG;
2220
2221 if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
2222 arg->peer_flags |= ar->wmi.peer_flags->ldbc;
2223
2224 if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
2225 arg->peer_flags |= ar->wmi.peer_flags->bw40;
2226 arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
2227 }
2228
2229 if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
2230 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
2231 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2232
2233 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
2234 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2235 }
2236
2237 if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
2238 arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
2239 arg->peer_flags |= ar->wmi.peer_flags->stbc;
2240 }
2241
2242 if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
2243 stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
2244 stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
2245 stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
2246 arg->peer_rate_caps |= stbc;
2247 arg->peer_flags |= ar->wmi.peer_flags->stbc;
2248 }
2249
2250 if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
2251 arg->peer_rate_caps |= WMI_RC_TS_FLAG;
2252 else if (ht_cap->mcs.rx_mask[1])
2253 arg->peer_rate_caps |= WMI_RC_DS_FLAG;
2254
2255 for (i = 0, n = 0, max_nss = 0; i < IEEE80211_HT_MCS_MASK_LEN * 8; i++)
2256 if ((ht_cap->mcs.rx_mask[i / 8] & BIT(i % 8)) &&
2257 (ht_mcs_mask[i / 8] & BIT(i % 8))) {
2258 max_nss = (i / 8) + 1;
2259 arg->peer_ht_rates.rates[n++] = i;
2260 }
2261
2262 /*
2263 * This is a workaround for HT-enabled STAs which break the spec
2264 * and have no HT capabilities RX mask (no HT RX MCS map).
2265 *
2266 * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
2267 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
2268 *
2269 * Firmware asserts if such situation occurs.
2270 */
2271 if (n == 0) {
2272 arg->peer_ht_rates.num_rates = 8;
2273 for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
2274 arg->peer_ht_rates.rates[i] = i;
2275 } else {
2276 arg->peer_ht_rates.num_rates = n;
2277 arg->peer_num_spatial_streams = min(sta->rx_nss, max_nss);
2278 }
2279
2280 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
2281 arg->addr,
2282 arg->peer_ht_rates.num_rates,
2283 arg->peer_num_spatial_streams);
2284 }
2285
2286 static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
2287 struct ath10k_vif *arvif,
2288 struct ieee80211_sta *sta)
2289 {
2290 u32 uapsd = 0;
2291 u32 max_sp = 0;
2292 int ret = 0;
2293
2294 lockdep_assert_held(&ar->conf_mutex);
2295
2296 if (sta->wme && sta->uapsd_queues) {
2297 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
2298 sta->uapsd_queues, sta->max_sp);
2299
2300 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
2301 uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
2302 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
2303 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
2304 uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
2305 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
2306 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
2307 uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
2308 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
2309 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
2310 uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
2311 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
2312
2313 if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
2314 max_sp = sta->max_sp;
2315
2316 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2317 sta->addr,
2318 WMI_AP_PS_PEER_PARAM_UAPSD,
2319 uapsd);
2320 if (ret) {
2321 ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
2322 arvif->vdev_id, ret);
2323 return ret;
2324 }
2325
2326 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2327 sta->addr,
2328 WMI_AP_PS_PEER_PARAM_MAX_SP,
2329 max_sp);
2330 if (ret) {
2331 ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
2332 arvif->vdev_id, ret);
2333 return ret;
2334 }
2335
2336 /* TODO setup this based on STA listen interval and
2337 beacon interval. Currently we don't know
2338 sta->listen_interval - mac80211 patch required.
2339 Currently use 10 seconds */
2340 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
2341 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
2342 10);
2343 if (ret) {
2344 ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
2345 arvif->vdev_id, ret);
2346 return ret;
2347 }
2348 }
2349
2350 return 0;
2351 }
2352
2353 static u16
2354 ath10k_peer_assoc_h_vht_limit(u16 tx_mcs_set,
2355 const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])
2356 {
2357 int idx_limit;
2358 int nss;
2359 u16 mcs_map;
2360 u16 mcs;
2361
2362 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
2363 mcs_map = ath10k_mac_get_max_vht_mcs_map(tx_mcs_set, nss) &
2364 vht_mcs_limit[nss];
2365
2366 if (mcs_map)
2367 idx_limit = fls(mcs_map) - 1;
2368 else
2369 idx_limit = -1;
2370
2371 switch (idx_limit) {
2372 case 0: /* fall through */
2373 case 1: /* fall through */
2374 case 2: /* fall through */
2375 case 3: /* fall through */
2376 case 4: /* fall through */
2377 case 5: /* fall through */
2378 case 6: /* fall through */
2379 default:
2380 /* see ath10k_mac_can_set_bitrate_mask() */
2381 WARN_ON(1);
2382 /* fall through */
2383 case -1:
2384 mcs = IEEE80211_VHT_MCS_NOT_SUPPORTED;
2385 break;
2386 case 7:
2387 mcs = IEEE80211_VHT_MCS_SUPPORT_0_7;
2388 break;
2389 case 8:
2390 mcs = IEEE80211_VHT_MCS_SUPPORT_0_8;
2391 break;
2392 case 9:
2393 mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
2394 break;
2395 }
2396
2397 tx_mcs_set &= ~(0x3 << (nss * 2));
2398 tx_mcs_set |= mcs << (nss * 2);
2399 }
2400
2401 return tx_mcs_set;
2402 }
2403
2404 static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
2405 struct ieee80211_vif *vif,
2406 struct ieee80211_sta *sta,
2407 struct wmi_peer_assoc_complete_arg *arg)
2408 {
2409 const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
2410 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2411 struct cfg80211_chan_def def;
2412 enum nl80211_band band;
2413 const u16 *vht_mcs_mask;
2414 u8 ampdu_factor;
2415
2416 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2417 return;
2418
2419 if (!vht_cap->vht_supported)
2420 return;
2421
2422 band = def.chan->band;
2423 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2424
2425 if (ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2426 return;
2427
2428 arg->peer_flags |= ar->wmi.peer_flags->vht;
2429
2430 if (def.chan->band == NL80211_BAND_2GHZ)
2431 arg->peer_flags |= ar->wmi.peer_flags->vht_2g;
2432
2433 arg->peer_vht_caps = vht_cap->cap;
2434
2435 ampdu_factor = (vht_cap->cap &
2436 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
2437 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
2438
2439 /* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
2440 * zero in VHT IE. Using it would result in degraded throughput.
2441 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
2442 * it if VHT max_mpdu is smaller. */
2443 arg->peer_max_mpdu = max(arg->peer_max_mpdu,
2444 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2445 ampdu_factor)) - 1);
2446
2447 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
2448 arg->peer_flags |= ar->wmi.peer_flags->bw80;
2449
2450 arg->peer_vht_rates.rx_max_rate =
2451 __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
2452 arg->peer_vht_rates.rx_mcs_set =
2453 __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
2454 arg->peer_vht_rates.tx_max_rate =
2455 __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
2456 arg->peer_vht_rates.tx_mcs_set = ath10k_peer_assoc_h_vht_limit(
2457 __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask);
2458
2459 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
2460 sta->addr, arg->peer_max_mpdu, arg->peer_flags);
2461 }
2462
2463 static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
2464 struct ieee80211_vif *vif,
2465 struct ieee80211_sta *sta,
2466 struct wmi_peer_assoc_complete_arg *arg)
2467 {
2468 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2469
2470 switch (arvif->vdev_type) {
2471 case WMI_VDEV_TYPE_AP:
2472 if (sta->wme)
2473 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2474
2475 if (sta->wme && sta->uapsd_queues) {
2476 arg->peer_flags |= arvif->ar->wmi.peer_flags->apsd;
2477 arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
2478 }
2479 break;
2480 case WMI_VDEV_TYPE_STA:
2481 if (vif->bss_conf.qos)
2482 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2483 break;
2484 case WMI_VDEV_TYPE_IBSS:
2485 if (sta->wme)
2486 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2487 break;
2488 default:
2489 break;
2490 }
2491
2492 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM qos %d\n",
2493 sta->addr, !!(arg->peer_flags &
2494 arvif->ar->wmi.peer_flags->qos));
2495 }
2496
2497 static bool ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
2498 {
2499 return sta->supp_rates[NL80211_BAND_2GHZ] >>
2500 ATH10K_MAC_FIRST_OFDM_RATE_IDX;
2501 }
2502
2503 static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
2504 struct ieee80211_vif *vif,
2505 struct ieee80211_sta *sta,
2506 struct wmi_peer_assoc_complete_arg *arg)
2507 {
2508 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2509 struct cfg80211_chan_def def;
2510 enum nl80211_band band;
2511 const u8 *ht_mcs_mask;
2512 const u16 *vht_mcs_mask;
2513 enum wmi_phy_mode phymode = MODE_UNKNOWN;
2514
2515 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2516 return;
2517
2518 band = def.chan->band;
2519 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2520 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2521
2522 switch (band) {
2523 case NL80211_BAND_2GHZ:
2524 if (sta->vht_cap.vht_supported &&
2525 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2526 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2527 phymode = MODE_11AC_VHT40;
2528 else
2529 phymode = MODE_11AC_VHT20;
2530 } else if (sta->ht_cap.ht_supported &&
2531 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2532 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2533 phymode = MODE_11NG_HT40;
2534 else
2535 phymode = MODE_11NG_HT20;
2536 } else if (ath10k_mac_sta_has_ofdm_only(sta)) {
2537 phymode = MODE_11G;
2538 } else {
2539 phymode = MODE_11B;
2540 }
2541
2542 break;
2543 case NL80211_BAND_5GHZ:
2544 /*
2545 * Check VHT first.
2546 */
2547 if (sta->vht_cap.vht_supported &&
2548 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2549 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
2550 phymode = MODE_11AC_VHT80;
2551 else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2552 phymode = MODE_11AC_VHT40;
2553 else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
2554 phymode = MODE_11AC_VHT20;
2555 } else if (sta->ht_cap.ht_supported &&
2556 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2557 if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
2558 phymode = MODE_11NA_HT40;
2559 else
2560 phymode = MODE_11NA_HT20;
2561 } else {
2562 phymode = MODE_11A;
2563 }
2564
2565 break;
2566 default:
2567 break;
2568 }
2569
2570 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
2571 sta->addr, ath10k_wmi_phymode_str(phymode));
2572
2573 arg->peer_phymode = phymode;
2574 WARN_ON(phymode == MODE_UNKNOWN);
2575 }
2576
2577 static int ath10k_peer_assoc_prepare(struct ath10k *ar,
2578 struct ieee80211_vif *vif,
2579 struct ieee80211_sta *sta,
2580 struct wmi_peer_assoc_complete_arg *arg)
2581 {
2582 lockdep_assert_held(&ar->conf_mutex);
2583
2584 memset(arg, 0, sizeof(*arg));
2585
2586 ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
2587 ath10k_peer_assoc_h_crypto(ar, vif, sta, arg);
2588 ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
2589 ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
2590 ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
2591 ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
2592 ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
2593
2594 return 0;
2595 }
2596
2597 static const u32 ath10k_smps_map[] = {
2598 [WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
2599 [WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
2600 [WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
2601 [WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
2602 };
2603
2604 static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
2605 const u8 *addr,
2606 const struct ieee80211_sta_ht_cap *ht_cap)
2607 {
2608 int smps;
2609
2610 if (!ht_cap->ht_supported)
2611 return 0;
2612
2613 smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
2614 smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
2615
2616 if (smps >= ARRAY_SIZE(ath10k_smps_map))
2617 return -EINVAL;
2618
2619 return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
2620 WMI_PEER_SMPS_STATE,
2621 ath10k_smps_map[smps]);
2622 }
2623
2624 static int ath10k_mac_vif_recalc_txbf(struct ath10k *ar,
2625 struct ieee80211_vif *vif,
2626 struct ieee80211_sta_vht_cap vht_cap)
2627 {
2628 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2629 int ret;
2630 u32 param;
2631 u32 value;
2632
2633 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_AFTER_ASSOC)
2634 return 0;
2635
2636 if (!(ar->vht_cap_info &
2637 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2638 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
2639 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2640 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
2641 return 0;
2642
2643 param = ar->wmi.vdev_param->txbf;
2644 value = 0;
2645
2646 if (WARN_ON(param == WMI_VDEV_PARAM_UNSUPPORTED))
2647 return 0;
2648
2649 /* The following logic is correct. If a remote STA advertises support
2650 * for being a beamformer then we should enable us being a beamformee.
2651 */
2652
2653 if (ar->vht_cap_info &
2654 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2655 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
2656 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
2657 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2658
2659 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
2660 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
2661 }
2662
2663 if (ar->vht_cap_info &
2664 (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2665 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
2666 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
2667 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2668
2669 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
2670 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
2671 }
2672
2673 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFEE)
2674 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2675
2676 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFER)
2677 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2678
2679 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param, value);
2680 if (ret) {
2681 ath10k_warn(ar, "failed to submit vdev param txbf 0x%x: %d\n",
2682 value, ret);
2683 return ret;
2684 }
2685
2686 return 0;
2687 }
2688
2689 /* can be called only in mac80211 callbacks due to `key_count` usage */
2690 static void ath10k_bss_assoc(struct ieee80211_hw *hw,
2691 struct ieee80211_vif *vif,
2692 struct ieee80211_bss_conf *bss_conf)
2693 {
2694 struct ath10k *ar = hw->priv;
2695 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2696 struct ieee80211_sta_ht_cap ht_cap;
2697 struct ieee80211_sta_vht_cap vht_cap;
2698 struct wmi_peer_assoc_complete_arg peer_arg;
2699 struct ieee80211_sta *ap_sta;
2700 int ret;
2701
2702 lockdep_assert_held(&ar->conf_mutex);
2703
2704 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
2705 arvif->vdev_id, arvif->bssid, arvif->aid);
2706
2707 rcu_read_lock();
2708
2709 ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
2710 if (!ap_sta) {
2711 ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
2712 bss_conf->bssid, arvif->vdev_id);
2713 rcu_read_unlock();
2714 return;
2715 }
2716
2717 /* ap_sta must be accessed only within rcu section which must be left
2718 * before calling ath10k_setup_peer_smps() which might sleep. */
2719 ht_cap = ap_sta->ht_cap;
2720 vht_cap = ap_sta->vht_cap;
2721
2722 ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
2723 if (ret) {
2724 ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
2725 bss_conf->bssid, arvif->vdev_id, ret);
2726 rcu_read_unlock();
2727 return;
2728 }
2729
2730 rcu_read_unlock();
2731
2732 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2733 if (ret) {
2734 ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
2735 bss_conf->bssid, arvif->vdev_id, ret);
2736 return;
2737 }
2738
2739 ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
2740 if (ret) {
2741 ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
2742 arvif->vdev_id, ret);
2743 return;
2744 }
2745
2746 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
2747 if (ret) {
2748 ath10k_warn(ar, "failed to recalc txbf for vdev %i on bss %pM: %d\n",
2749 arvif->vdev_id, bss_conf->bssid, ret);
2750 return;
2751 }
2752
2753 ath10k_dbg(ar, ATH10K_DBG_MAC,
2754 "mac vdev %d up (associated) bssid %pM aid %d\n",
2755 arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
2756
2757 WARN_ON(arvif->is_up);
2758
2759 arvif->aid = bss_conf->aid;
2760 ether_addr_copy(arvif->bssid, bss_conf->bssid);
2761
2762 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
2763 if (ret) {
2764 ath10k_warn(ar, "failed to set vdev %d up: %d\n",
2765 arvif->vdev_id, ret);
2766 return;
2767 }
2768
2769 arvif->is_up = true;
2770
2771 /* Workaround: Some firmware revisions (tested with qca6174
2772 * WLAN.RM.2.0-00073) have buggy powersave state machine and must be
2773 * poked with peer param command.
2774 */
2775 ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, arvif->bssid,
2776 WMI_PEER_DUMMY_VAR, 1);
2777 if (ret) {
2778 ath10k_warn(ar, "failed to poke peer %pM param for ps workaround on vdev %i: %d\n",
2779 arvif->bssid, arvif->vdev_id, ret);
2780 return;
2781 }
2782 }
2783
2784 static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
2785 struct ieee80211_vif *vif)
2786 {
2787 struct ath10k *ar = hw->priv;
2788 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2789 struct ieee80211_sta_vht_cap vht_cap = {};
2790 int ret;
2791
2792 lockdep_assert_held(&ar->conf_mutex);
2793
2794 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
2795 arvif->vdev_id, arvif->bssid);
2796
2797 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2798 if (ret)
2799 ath10k_warn(ar, "failed to down vdev %i: %d\n",
2800 arvif->vdev_id, ret);
2801
2802 arvif->def_wep_key_idx = -1;
2803
2804 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
2805 if (ret) {
2806 ath10k_warn(ar, "failed to recalc txbf for vdev %i: %d\n",
2807 arvif->vdev_id, ret);
2808 return;
2809 }
2810
2811 arvif->is_up = false;
2812
2813 cancel_delayed_work_sync(&arvif->connection_loss_work);
2814 }
2815
2816 static int ath10k_station_assoc(struct ath10k *ar,
2817 struct ieee80211_vif *vif,
2818 struct ieee80211_sta *sta,
2819 bool reassoc)
2820 {
2821 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2822 struct wmi_peer_assoc_complete_arg peer_arg;
2823 int ret = 0;
2824
2825 lockdep_assert_held(&ar->conf_mutex);
2826
2827 ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
2828 if (ret) {
2829 ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
2830 sta->addr, arvif->vdev_id, ret);
2831 return ret;
2832 }
2833
2834 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2835 if (ret) {
2836 ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
2837 sta->addr, arvif->vdev_id, ret);
2838 return ret;
2839 }
2840
2841 /* Re-assoc is run only to update supported rates for given station. It
2842 * doesn't make much sense to reconfigure the peer completely.
2843 */
2844 if (!reassoc) {
2845 ret = ath10k_setup_peer_smps(ar, arvif, sta->addr,
2846 &sta->ht_cap);
2847 if (ret) {
2848 ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
2849 arvif->vdev_id, ret);
2850 return ret;
2851 }
2852
2853 ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
2854 if (ret) {
2855 ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
2856 sta->addr, arvif->vdev_id, ret);
2857 return ret;
2858 }
2859
2860 if (!sta->wme) {
2861 arvif->num_legacy_stations++;
2862 ret = ath10k_recalc_rtscts_prot(arvif);
2863 if (ret) {
2864 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2865 arvif->vdev_id, ret);
2866 return ret;
2867 }
2868 }
2869
2870 /* Plumb cached keys only for static WEP */
2871 if (arvif->def_wep_key_idx != -1) {
2872 ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
2873 if (ret) {
2874 ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
2875 arvif->vdev_id, ret);
2876 return ret;
2877 }
2878 }
2879 }
2880
2881 return ret;
2882 }
2883
2884 static int ath10k_station_disassoc(struct ath10k *ar,
2885 struct ieee80211_vif *vif,
2886 struct ieee80211_sta *sta)
2887 {
2888 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2889 int ret = 0;
2890
2891 lockdep_assert_held(&ar->conf_mutex);
2892
2893 if (!sta->wme) {
2894 arvif->num_legacy_stations--;
2895 ret = ath10k_recalc_rtscts_prot(arvif);
2896 if (ret) {
2897 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2898 arvif->vdev_id, ret);
2899 return ret;
2900 }
2901 }
2902
2903 ret = ath10k_clear_peer_keys(arvif, sta->addr);
2904 if (ret) {
2905 ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
2906 arvif->vdev_id, ret);
2907 return ret;
2908 }
2909
2910 return ret;
2911 }
2912
2913 /**************/
2914 /* Regulatory */
2915 /**************/
2916
2917 static int ath10k_update_channel_list(struct ath10k *ar)
2918 {
2919 struct ieee80211_hw *hw = ar->hw;
2920 struct ieee80211_supported_band **bands;
2921 enum nl80211_band band;
2922 struct ieee80211_channel *channel;
2923 struct wmi_scan_chan_list_arg arg = {0};
2924 struct wmi_channel_arg *ch;
2925 bool passive;
2926 int len;
2927 int ret;
2928 int i;
2929
2930 lockdep_assert_held(&ar->conf_mutex);
2931
2932 bands = hw->wiphy->bands;
2933 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2934 if (!bands[band])
2935 continue;
2936
2937 for (i = 0; i < bands[band]->n_channels; i++) {
2938 if (bands[band]->channels[i].flags &
2939 IEEE80211_CHAN_DISABLED)
2940 continue;
2941
2942 arg.n_channels++;
2943 }
2944 }
2945
2946 len = sizeof(struct wmi_channel_arg) * arg.n_channels;
2947 arg.channels = kzalloc(len, GFP_KERNEL);
2948 if (!arg.channels)
2949 return -ENOMEM;
2950
2951 ch = arg.channels;
2952 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2953 if (!bands[band])
2954 continue;
2955
2956 for (i = 0; i < bands[band]->n_channels; i++) {
2957 channel = &bands[band]->channels[i];
2958
2959 if (channel->flags & IEEE80211_CHAN_DISABLED)
2960 continue;
2961
2962 ch->allow_ht = true;
2963
2964 /* FIXME: when should we really allow VHT? */
2965 ch->allow_vht = true;
2966
2967 ch->allow_ibss =
2968 !(channel->flags & IEEE80211_CHAN_NO_IR);
2969
2970 ch->ht40plus =
2971 !(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
2972
2973 ch->chan_radar =
2974 !!(channel->flags & IEEE80211_CHAN_RADAR);
2975
2976 passive = channel->flags & IEEE80211_CHAN_NO_IR;
2977 ch->passive = passive;
2978
2979 ch->freq = channel->center_freq;
2980 ch->band_center_freq1 = channel->center_freq;
2981 ch->min_power = 0;
2982 ch->max_power = channel->max_power * 2;
2983 ch->max_reg_power = channel->max_reg_power * 2;
2984 ch->max_antenna_gain = channel->max_antenna_gain * 2;
2985 ch->reg_class_id = 0; /* FIXME */
2986
2987 /* FIXME: why use only legacy modes, why not any
2988 * HT/VHT modes? Would that even make any
2989 * difference? */
2990 if (channel->band == NL80211_BAND_2GHZ)
2991 ch->mode = MODE_11G;
2992 else
2993 ch->mode = MODE_11A;
2994
2995 if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
2996 continue;
2997
2998 ath10k_dbg(ar, ATH10K_DBG_WMI,
2999 "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
3000 ch - arg.channels, arg.n_channels,
3001 ch->freq, ch->max_power, ch->max_reg_power,
3002 ch->max_antenna_gain, ch->mode);
3003
3004 ch++;
3005 }
3006 }
3007
3008 ret = ath10k_wmi_scan_chan_list(ar, &arg);
3009 kfree(arg.channels);
3010
3011 return ret;
3012 }
3013
3014 static enum wmi_dfs_region
3015 ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
3016 {
3017 switch (dfs_region) {
3018 case NL80211_DFS_UNSET:
3019 return WMI_UNINIT_DFS_DOMAIN;
3020 case NL80211_DFS_FCC:
3021 return WMI_FCC_DFS_DOMAIN;
3022 case NL80211_DFS_ETSI:
3023 return WMI_ETSI_DFS_DOMAIN;
3024 case NL80211_DFS_JP:
3025 return WMI_MKK4_DFS_DOMAIN;
3026 }
3027 return WMI_UNINIT_DFS_DOMAIN;
3028 }
3029
3030 static void ath10k_regd_update(struct ath10k *ar)
3031 {
3032 struct reg_dmn_pair_mapping *regpair;
3033 int ret;
3034 enum wmi_dfs_region wmi_dfs_reg;
3035 enum nl80211_dfs_regions nl_dfs_reg;
3036
3037 lockdep_assert_held(&ar->conf_mutex);
3038
3039 ret = ath10k_update_channel_list(ar);
3040 if (ret)
3041 ath10k_warn(ar, "failed to update channel list: %d\n", ret);
3042
3043 regpair = ar->ath_common.regulatory.regpair;
3044
3045 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3046 nl_dfs_reg = ar->dfs_detector->region;
3047 wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
3048 } else {
3049 wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
3050 }
3051
3052 /* Target allows setting up per-band regdomain but ath_common provides
3053 * a combined one only */
3054 ret = ath10k_wmi_pdev_set_regdomain(ar,
3055 regpair->reg_domain,
3056 regpair->reg_domain, /* 2ghz */
3057 regpair->reg_domain, /* 5ghz */
3058 regpair->reg_2ghz_ctl,
3059 regpair->reg_5ghz_ctl,
3060 wmi_dfs_reg);
3061 if (ret)
3062 ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
3063 }
3064
3065 static void ath10k_reg_notifier(struct wiphy *wiphy,
3066 struct regulatory_request *request)
3067 {
3068 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
3069 struct ath10k *ar = hw->priv;
3070 bool result;
3071
3072 ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
3073
3074 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3075 ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
3076 request->dfs_region);
3077 result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
3078 request->dfs_region);
3079 if (!result)
3080 ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
3081 request->dfs_region);
3082 }
3083
3084 mutex_lock(&ar->conf_mutex);
3085 if (ar->state == ATH10K_STATE_ON)
3086 ath10k_regd_update(ar);
3087 mutex_unlock(&ar->conf_mutex);
3088 }
3089
3090 /***************/
3091 /* TX handlers */
3092 /***************/
3093
3094 enum ath10k_mac_tx_path {
3095 ATH10K_MAC_TX_HTT,
3096 ATH10K_MAC_TX_HTT_MGMT,
3097 ATH10K_MAC_TX_WMI_MGMT,
3098 ATH10K_MAC_TX_UNKNOWN,
3099 };
3100
3101 void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
3102 {
3103 lockdep_assert_held(&ar->htt.tx_lock);
3104
3105 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
3106 ar->tx_paused |= BIT(reason);
3107 ieee80211_stop_queues(ar->hw);
3108 }
3109
3110 static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
3111 struct ieee80211_vif *vif)
3112 {
3113 struct ath10k *ar = data;
3114 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3115
3116 if (arvif->tx_paused)
3117 return;
3118
3119 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3120 }
3121
3122 void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
3123 {
3124 lockdep_assert_held(&ar->htt.tx_lock);
3125
3126 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
3127 ar->tx_paused &= ~BIT(reason);
3128
3129 if (ar->tx_paused)
3130 return;
3131
3132 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3133 IEEE80211_IFACE_ITER_RESUME_ALL,
3134 ath10k_mac_tx_unlock_iter,
3135 ar);
3136
3137 ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
3138 }
3139
3140 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
3141 {
3142 struct ath10k *ar = arvif->ar;
3143
3144 lockdep_assert_held(&ar->htt.tx_lock);
3145
3146 WARN_ON(reason >= BITS_PER_LONG);
3147 arvif->tx_paused |= BIT(reason);
3148 ieee80211_stop_queue(ar->hw, arvif->vdev_id);
3149 }
3150
3151 void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason)
3152 {
3153 struct ath10k *ar = arvif->ar;
3154
3155 lockdep_assert_held(&ar->htt.tx_lock);
3156
3157 WARN_ON(reason >= BITS_PER_LONG);
3158 arvif->tx_paused &= ~BIT(reason);
3159
3160 if (ar->tx_paused)
3161 return;
3162
3163 if (arvif->tx_paused)
3164 return;
3165
3166 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3167 }
3168
3169 static void ath10k_mac_vif_handle_tx_pause(struct ath10k_vif *arvif,
3170 enum wmi_tlv_tx_pause_id pause_id,
3171 enum wmi_tlv_tx_pause_action action)
3172 {
3173 struct ath10k *ar = arvif->ar;
3174
3175 lockdep_assert_held(&ar->htt.tx_lock);
3176
3177 switch (action) {
3178 case WMI_TLV_TX_PAUSE_ACTION_STOP:
3179 ath10k_mac_vif_tx_lock(arvif, pause_id);
3180 break;
3181 case WMI_TLV_TX_PAUSE_ACTION_WAKE:
3182 ath10k_mac_vif_tx_unlock(arvif, pause_id);
3183 break;
3184 default:
3185 ath10k_dbg(ar, ATH10K_DBG_BOOT,
3186 "received unknown tx pause action %d on vdev %i, ignoring\n",
3187 action, arvif->vdev_id);
3188 break;
3189 }
3190 }
3191
3192 struct ath10k_mac_tx_pause {
3193 u32 vdev_id;
3194 enum wmi_tlv_tx_pause_id pause_id;
3195 enum wmi_tlv_tx_pause_action action;
3196 };
3197
3198 static void ath10k_mac_handle_tx_pause_iter(void *data, u8 *mac,
3199 struct ieee80211_vif *vif)
3200 {
3201 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3202 struct ath10k_mac_tx_pause *arg = data;
3203
3204 if (arvif->vdev_id != arg->vdev_id)
3205 return;
3206
3207 ath10k_mac_vif_handle_tx_pause(arvif, arg->pause_id, arg->action);
3208 }
3209
3210 void ath10k_mac_handle_tx_pause_vdev(struct ath10k *ar, u32 vdev_id,
3211 enum wmi_tlv_tx_pause_id pause_id,
3212 enum wmi_tlv_tx_pause_action action)
3213 {
3214 struct ath10k_mac_tx_pause arg = {
3215 .vdev_id = vdev_id,
3216 .pause_id = pause_id,
3217 .action = action,
3218 };
3219
3220 spin_lock_bh(&ar->htt.tx_lock);
3221 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3222 IEEE80211_IFACE_ITER_RESUME_ALL,
3223 ath10k_mac_handle_tx_pause_iter,
3224 &arg);
3225 spin_unlock_bh(&ar->htt.tx_lock);
3226 }
3227
3228 static enum ath10k_hw_txrx_mode
3229 ath10k_mac_tx_h_get_txmode(struct ath10k *ar,
3230 struct ieee80211_vif *vif,
3231 struct ieee80211_sta *sta,
3232 struct sk_buff *skb)
3233 {
3234 const struct ieee80211_hdr *hdr = (void *)skb->data;
3235 __le16 fc = hdr->frame_control;
3236
3237 if (!vif || vif->type == NL80211_IFTYPE_MONITOR)
3238 return ATH10K_HW_TXRX_RAW;
3239
3240 if (ieee80211_is_mgmt(fc))
3241 return ATH10K_HW_TXRX_MGMT;
3242
3243 /* Workaround:
3244 *
3245 * NullFunc frames are mostly used to ping if a client or AP are still
3246 * reachable and responsive. This implies tx status reports must be
3247 * accurate - otherwise either mac80211 or userspace (e.g. hostapd) can
3248 * come to a conclusion that the other end disappeared and tear down
3249 * BSS connection or it can never disconnect from BSS/client (which is
3250 * the case).
3251 *
3252 * Firmware with HTT older than 3.0 delivers incorrect tx status for
3253 * NullFunc frames to driver. However there's a HTT Mgmt Tx command
3254 * which seems to deliver correct tx reports for NullFunc frames. The
3255 * downside of using it is it ignores client powersave state so it can
3256 * end up disconnecting sleeping clients in AP mode. It should fix STA
3257 * mode though because AP don't sleep.
3258 */
3259 if (ar->htt.target_version_major < 3 &&
3260 (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
3261 !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3262 ar->running_fw->fw_file.fw_features))
3263 return ATH10K_HW_TXRX_MGMT;
3264
3265 /* Workaround:
3266 *
3267 * Some wmi-tlv firmwares for qca6174 have broken Tx key selection for
3268 * NativeWifi txmode - it selects AP key instead of peer key. It seems
3269 * to work with Ethernet txmode so use it.
3270 *
3271 * FIXME: Check if raw mode works with TDLS.
3272 */
3273 if (ieee80211_is_data_present(fc) && sta && sta->tdls)
3274 return ATH10K_HW_TXRX_ETHERNET;
3275
3276 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
3277 return ATH10K_HW_TXRX_RAW;
3278
3279 return ATH10K_HW_TXRX_NATIVE_WIFI;
3280 }
3281
3282 static bool ath10k_tx_h_use_hwcrypto(struct ieee80211_vif *vif,
3283 struct sk_buff *skb)
3284 {
3285 const struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3286 const struct ieee80211_hdr *hdr = (void *)skb->data;
3287 const u32 mask = IEEE80211_TX_INTFL_DONT_ENCRYPT |
3288 IEEE80211_TX_CTL_INJECTED;
3289
3290 if (!ieee80211_has_protected(hdr->frame_control))
3291 return false;
3292
3293 if ((info->flags & mask) == mask)
3294 return false;
3295
3296 if (vif)
3297 return !ath10k_vif_to_arvif(vif)->nohwcrypt;
3298
3299 return true;
3300 }
3301
3302 /* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
3303 * Control in the header.
3304 */
3305 static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
3306 {
3307 struct ieee80211_hdr *hdr = (void *)skb->data;
3308 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3309 u8 *qos_ctl;
3310
3311 if (!ieee80211_is_data_qos(hdr->frame_control))
3312 return;
3313
3314 qos_ctl = ieee80211_get_qos_ctl(hdr);
3315 memmove(skb->data + IEEE80211_QOS_CTL_LEN,
3316 skb->data, (void *)qos_ctl - (void *)skb->data);
3317 skb_pull(skb, IEEE80211_QOS_CTL_LEN);
3318
3319 /* Some firmware revisions don't handle sending QoS NullFunc well.
3320 * These frames are mainly used for CQM purposes so it doesn't really
3321 * matter whether QoS NullFunc or NullFunc are sent.
3322 */
3323 hdr = (void *)skb->data;
3324 if (ieee80211_is_qos_nullfunc(hdr->frame_control))
3325 cb->flags &= ~ATH10K_SKB_F_QOS;
3326
3327 hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
3328 }
3329
3330 static void ath10k_tx_h_8023(struct sk_buff *skb)
3331 {
3332 struct ieee80211_hdr *hdr;
3333 struct rfc1042_hdr *rfc1042;
3334 struct ethhdr *eth;
3335 size_t hdrlen;
3336 u8 da[ETH_ALEN];
3337 u8 sa[ETH_ALEN];
3338 __be16 type;
3339
3340 hdr = (void *)skb->data;
3341 hdrlen = ieee80211_hdrlen(hdr->frame_control);
3342 rfc1042 = (void *)skb->data + hdrlen;
3343
3344 ether_addr_copy(da, ieee80211_get_DA(hdr));
3345 ether_addr_copy(sa, ieee80211_get_SA(hdr));
3346 type = rfc1042->snap_type;
3347
3348 skb_pull(skb, hdrlen + sizeof(*rfc1042));
3349 skb_push(skb, sizeof(*eth));
3350
3351 eth = (void *)skb->data;
3352 ether_addr_copy(eth->h_dest, da);
3353 ether_addr_copy(eth->h_source, sa);
3354 eth->h_proto = type;
3355 }
3356
3357 static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
3358 struct ieee80211_vif *vif,
3359 struct sk_buff *skb)
3360 {
3361 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3362 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3363
3364 /* This is case only for P2P_GO */
3365 if (vif->type != NL80211_IFTYPE_AP || !vif->p2p)
3366 return;
3367
3368 if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
3369 spin_lock_bh(&ar->data_lock);
3370 if (arvif->u.ap.noa_data)
3371 if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
3372 GFP_ATOMIC))
3373 memcpy(skb_put(skb, arvif->u.ap.noa_len),
3374 arvif->u.ap.noa_data,
3375 arvif->u.ap.noa_len);
3376 spin_unlock_bh(&ar->data_lock);
3377 }
3378 }
3379
3380 static void ath10k_mac_tx_h_fill_cb(struct ath10k *ar,
3381 struct ieee80211_vif *vif,
3382 struct ieee80211_txq *txq,
3383 struct sk_buff *skb)
3384 {
3385 struct ieee80211_hdr *hdr = (void *)skb->data;
3386 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3387
3388 cb->flags = 0;
3389 if (!ath10k_tx_h_use_hwcrypto(vif, skb))
3390 cb->flags |= ATH10K_SKB_F_NO_HWCRYPT;
3391
3392 if (ieee80211_is_mgmt(hdr->frame_control))
3393 cb->flags |= ATH10K_SKB_F_MGMT;
3394
3395 if (ieee80211_is_data_qos(hdr->frame_control))
3396 cb->flags |= ATH10K_SKB_F_QOS;
3397
3398 cb->vif = vif;
3399 cb->txq = txq;
3400 }
3401
3402 bool ath10k_mac_tx_frm_has_freq(struct ath10k *ar)
3403 {
3404 /* FIXME: Not really sure since when the behaviour changed. At some
3405 * point new firmware stopped requiring creation of peer entries for
3406 * offchannel tx (and actually creating them causes issues with wmi-htc
3407 * tx credit replenishment and reliability). Assuming it's at least 3.4
3408 * because that's when the `freq` was introduced to TX_FRM HTT command.
3409 */
3410 return (ar->htt.target_version_major >= 3 &&
3411 ar->htt.target_version_minor >= 4 &&
3412 ar->running_fw->fw_file.htt_op_version == ATH10K_FW_HTT_OP_VERSION_TLV);
3413 }
3414
3415 static int ath10k_mac_tx_wmi_mgmt(struct ath10k *ar, struct sk_buff *skb)
3416 {
3417 struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
3418 int ret = 0;
3419
3420 spin_lock_bh(&ar->data_lock);
3421
3422 if (skb_queue_len(q) == ATH10K_MAX_NUM_MGMT_PENDING) {
3423 ath10k_warn(ar, "wmi mgmt tx queue is full\n");
3424 ret = -ENOSPC;
3425 goto unlock;
3426 }
3427
3428 __skb_queue_tail(q, skb);
3429 ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
3430
3431 unlock:
3432 spin_unlock_bh(&ar->data_lock);
3433
3434 return ret;
3435 }
3436
3437 static enum ath10k_mac_tx_path
3438 ath10k_mac_tx_h_get_txpath(struct ath10k *ar,
3439 struct sk_buff *skb,
3440 enum ath10k_hw_txrx_mode txmode)
3441 {
3442 switch (txmode) {
3443 case ATH10K_HW_TXRX_RAW:
3444 case ATH10K_HW_TXRX_NATIVE_WIFI:
3445 case ATH10K_HW_TXRX_ETHERNET:
3446 return ATH10K_MAC_TX_HTT;
3447 case ATH10K_HW_TXRX_MGMT:
3448 if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3449 ar->running_fw->fw_file.fw_features))
3450 return ATH10K_MAC_TX_WMI_MGMT;
3451 else if (ar->htt.target_version_major >= 3)
3452 return ATH10K_MAC_TX_HTT;
3453 else
3454 return ATH10K_MAC_TX_HTT_MGMT;
3455 }
3456
3457 return ATH10K_MAC_TX_UNKNOWN;
3458 }
3459
3460 static int ath10k_mac_tx_submit(struct ath10k *ar,
3461 enum ath10k_hw_txrx_mode txmode,
3462 enum ath10k_mac_tx_path txpath,
3463 struct sk_buff *skb)
3464 {
3465 struct ath10k_htt *htt = &ar->htt;
3466 int ret = -EINVAL;
3467
3468 switch (txpath) {
3469 case ATH10K_MAC_TX_HTT:
3470 ret = ath10k_htt_tx(htt, txmode, skb);
3471 break;
3472 case ATH10K_MAC_TX_HTT_MGMT:
3473 ret = ath10k_htt_mgmt_tx(htt, skb);
3474 break;
3475 case ATH10K_MAC_TX_WMI_MGMT:
3476 ret = ath10k_mac_tx_wmi_mgmt(ar, skb);
3477 break;
3478 case ATH10K_MAC_TX_UNKNOWN:
3479 WARN_ON_ONCE(1);
3480 ret = -EINVAL;
3481 break;
3482 }
3483
3484 if (ret) {
3485 ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
3486 ret);
3487 ieee80211_free_txskb(ar->hw, skb);
3488 }
3489
3490 return ret;
3491 }
3492
3493 /* This function consumes the sk_buff regardless of return value as far as
3494 * caller is concerned so no freeing is necessary afterwards.
3495 */
3496 static int ath10k_mac_tx(struct ath10k *ar,
3497 struct ieee80211_vif *vif,
3498 struct ieee80211_sta *sta,
3499 enum ath10k_hw_txrx_mode txmode,
3500 enum ath10k_mac_tx_path txpath,
3501 struct sk_buff *skb)
3502 {
3503 struct ieee80211_hw *hw = ar->hw;
3504 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3505 int ret;
3506
3507 /* We should disable CCK RATE due to P2P */
3508 if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
3509 ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
3510
3511 switch (txmode) {
3512 case ATH10K_HW_TXRX_MGMT:
3513 case ATH10K_HW_TXRX_NATIVE_WIFI:
3514 ath10k_tx_h_nwifi(hw, skb);
3515 ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
3516 ath10k_tx_h_seq_no(vif, skb);
3517 break;
3518 case ATH10K_HW_TXRX_ETHERNET:
3519 ath10k_tx_h_8023(skb);
3520 break;
3521 case ATH10K_HW_TXRX_RAW:
3522 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
3523 WARN_ON_ONCE(1);
3524 ieee80211_free_txskb(hw, skb);
3525 return -ENOTSUPP;
3526 }
3527 }
3528
3529 if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
3530 if (!ath10k_mac_tx_frm_has_freq(ar)) {
3531 ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %pK\n",
3532 skb);
3533
3534 skb_queue_tail(&ar->offchan_tx_queue, skb);
3535 ieee80211_queue_work(hw, &ar->offchan_tx_work);
3536 return 0;
3537 }
3538 }
3539
3540 ret = ath10k_mac_tx_submit(ar, txmode, txpath, skb);
3541 if (ret) {
3542 ath10k_warn(ar, "failed to submit frame: %d\n", ret);
3543 return ret;
3544 }
3545
3546 return 0;
3547 }
3548
3549 void ath10k_offchan_tx_purge(struct ath10k *ar)
3550 {
3551 struct sk_buff *skb;
3552
3553 for (;;) {
3554 skb = skb_dequeue(&ar->offchan_tx_queue);
3555 if (!skb)
3556 break;
3557
3558 ieee80211_free_txskb(ar->hw, skb);
3559 }
3560 }
3561
3562 void ath10k_offchan_tx_work(struct work_struct *work)
3563 {
3564 struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
3565 struct ath10k_peer *peer;
3566 struct ath10k_vif *arvif;
3567 enum ath10k_hw_txrx_mode txmode;
3568 enum ath10k_mac_tx_path txpath;
3569 struct ieee80211_hdr *hdr;
3570 struct ieee80211_vif *vif;
3571 struct ieee80211_sta *sta;
3572 struct sk_buff *skb;
3573 const u8 *peer_addr;
3574 int vdev_id;
3575 int ret;
3576 unsigned long time_left;
3577 bool tmp_peer_created = false;
3578
3579 /* FW requirement: We must create a peer before FW will send out
3580 * an offchannel frame. Otherwise the frame will be stuck and
3581 * never transmitted. We delete the peer upon tx completion.
3582 * It is unlikely that a peer for offchannel tx will already be
3583 * present. However it may be in some rare cases so account for that.
3584 * Otherwise we might remove a legitimate peer and break stuff. */
3585
3586 for (;;) {
3587 skb = skb_dequeue(&ar->offchan_tx_queue);
3588 if (!skb)
3589 break;
3590
3591 mutex_lock(&ar->conf_mutex);
3592
3593 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %pK\n",
3594 skb);
3595
3596 hdr = (struct ieee80211_hdr *)skb->data;
3597 peer_addr = ieee80211_get_DA(hdr);
3598
3599 spin_lock_bh(&ar->data_lock);
3600 vdev_id = ar->scan.vdev_id;
3601 peer = ath10k_peer_find(ar, vdev_id, peer_addr);
3602 spin_unlock_bh(&ar->data_lock);
3603
3604 if (peer)
3605 /* FIXME: should this use ath10k_warn()? */
3606 ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
3607 peer_addr, vdev_id);
3608
3609 if (!peer) {
3610 ret = ath10k_peer_create(ar, NULL, NULL, vdev_id,
3611 peer_addr,
3612 WMI_PEER_TYPE_DEFAULT);
3613 if (ret)
3614 ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
3615 peer_addr, vdev_id, ret);
3616 tmp_peer_created = (ret == 0);
3617 }
3618
3619 spin_lock_bh(&ar->data_lock);
3620 reinit_completion(&ar->offchan_tx_completed);
3621 ar->offchan_tx_skb = skb;
3622 spin_unlock_bh(&ar->data_lock);
3623
3624 /* It's safe to access vif and sta - conf_mutex guarantees that
3625 * sta_state() and remove_interface() are locked exclusively
3626 * out wrt to this offchannel worker.
3627 */
3628 arvif = ath10k_get_arvif(ar, vdev_id);
3629 if (arvif) {
3630 vif = arvif->vif;
3631 sta = ieee80211_find_sta(vif, peer_addr);
3632 } else {
3633 vif = NULL;
3634 sta = NULL;
3635 }
3636
3637 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
3638 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
3639
3640 ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
3641 if (ret) {
3642 ath10k_warn(ar, "failed to transmit offchannel frame: %d\n",
3643 ret);
3644 /* not serious */
3645 }
3646
3647 time_left =
3648 wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
3649 if (time_left == 0)
3650 ath10k_warn(ar, "timed out waiting for offchannel skb %pK\n",
3651 skb);
3652
3653 if (!peer && tmp_peer_created) {
3654 ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
3655 if (ret)
3656 ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
3657 peer_addr, vdev_id, ret);
3658 }
3659
3660 mutex_unlock(&ar->conf_mutex);
3661 }
3662 }
3663
3664 void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
3665 {
3666 struct sk_buff *skb;
3667
3668 for (;;) {
3669 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
3670 if (!skb)
3671 break;
3672
3673 ieee80211_free_txskb(ar->hw, skb);
3674 }
3675 }
3676
3677 void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
3678 {
3679 struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
3680 struct sk_buff *skb;
3681 int ret;
3682
3683 for (;;) {
3684 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
3685 if (!skb)
3686 break;
3687
3688 ret = ath10k_wmi_mgmt_tx(ar, skb);
3689 if (ret) {
3690 ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
3691 ret);
3692 ieee80211_free_txskb(ar->hw, skb);
3693 }
3694 }
3695 }
3696
3697 static void ath10k_mac_txq_init(struct ieee80211_txq *txq)
3698 {
3699 struct ath10k_txq *artxq;
3700
3701 if (!txq)
3702 return;
3703
3704 artxq = (void *)txq->drv_priv;
3705 INIT_LIST_HEAD(&artxq->list);
3706 }
3707
3708 static void ath10k_mac_txq_unref(struct ath10k *ar, struct ieee80211_txq *txq)
3709 {
3710 struct ath10k_txq *artxq;
3711 struct ath10k_skb_cb *cb;
3712 struct sk_buff *msdu;
3713 int msdu_id;
3714
3715 if (!txq)
3716 return;
3717
3718 artxq = (void *)txq->drv_priv;
3719 spin_lock_bh(&ar->txqs_lock);
3720 if (!list_empty(&artxq->list))
3721 list_del_init(&artxq->list);
3722 spin_unlock_bh(&ar->txqs_lock);
3723
3724 spin_lock_bh(&ar->htt.tx_lock);
3725 idr_for_each_entry(&ar->htt.pending_tx, msdu, msdu_id) {
3726 cb = ATH10K_SKB_CB(msdu);
3727 if (cb->txq == txq)
3728 cb->txq = NULL;
3729 }
3730 spin_unlock_bh(&ar->htt.tx_lock);
3731 }
3732
3733 struct ieee80211_txq *ath10k_mac_txq_lookup(struct ath10k *ar,
3734 u16 peer_id,
3735 u8 tid)
3736 {
3737 struct ath10k_peer *peer;
3738
3739 lockdep_assert_held(&ar->data_lock);
3740
3741 peer = ar->peer_map[peer_id];
3742 if (!peer)
3743 return NULL;
3744
3745 if (peer->sta)
3746 return peer->sta->txq[tid];
3747 else if (peer->vif)
3748 return peer->vif->txq;
3749 else
3750 return NULL;
3751 }
3752
3753 static bool ath10k_mac_tx_can_push(struct ieee80211_hw *hw,
3754 struct ieee80211_txq *txq)
3755 {
3756 struct ath10k *ar = hw->priv;
3757 struct ath10k_txq *artxq = (void *)txq->drv_priv;
3758
3759 /* No need to get locks */
3760
3761 if (ar->htt.tx_q_state.mode == HTT_TX_MODE_SWITCH_PUSH)
3762 return true;
3763
3764 if (ar->htt.num_pending_tx < ar->htt.tx_q_state.num_push_allowed)
3765 return true;
3766
3767 if (artxq->num_fw_queued < artxq->num_push_allowed)
3768 return true;
3769
3770 return false;
3771 }
3772
3773 int ath10k_mac_tx_push_txq(struct ieee80211_hw *hw,
3774 struct ieee80211_txq *txq)
3775 {
3776 struct ath10k *ar = hw->priv;
3777 struct ath10k_htt *htt = &ar->htt;
3778 struct ath10k_txq *artxq = (void *)txq->drv_priv;
3779 struct ieee80211_vif *vif = txq->vif;
3780 struct ieee80211_sta *sta = txq->sta;
3781 enum ath10k_hw_txrx_mode txmode;
3782 enum ath10k_mac_tx_path txpath;
3783 struct sk_buff *skb;
3784 struct ieee80211_hdr *hdr;
3785 size_t skb_len;
3786 bool is_mgmt, is_presp;
3787 int ret;
3788
3789 spin_lock_bh(&ar->htt.tx_lock);
3790 ret = ath10k_htt_tx_inc_pending(htt);
3791 spin_unlock_bh(&ar->htt.tx_lock);
3792
3793 if (ret)
3794 return ret;
3795
3796 skb = ieee80211_tx_dequeue(hw, txq);
3797 if (!skb) {
3798 spin_lock_bh(&ar->htt.tx_lock);
3799 ath10k_htt_tx_dec_pending(htt);
3800 spin_unlock_bh(&ar->htt.tx_lock);
3801
3802 return -ENOENT;
3803 }
3804
3805 ath10k_mac_tx_h_fill_cb(ar, vif, txq, skb);
3806
3807 skb_len = skb->len;
3808 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
3809 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
3810 is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);
3811
3812 if (is_mgmt) {
3813 hdr = (struct ieee80211_hdr *)skb->data;
3814 is_presp = ieee80211_is_probe_resp(hdr->frame_control);
3815
3816 spin_lock_bh(&ar->htt.tx_lock);
3817 ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);
3818
3819 if (ret) {
3820 ath10k_htt_tx_dec_pending(htt);
3821 spin_unlock_bh(&ar->htt.tx_lock);
3822 return ret;
3823 }
3824 spin_unlock_bh(&ar->htt.tx_lock);
3825 }
3826
3827 ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
3828 if (unlikely(ret)) {
3829 ath10k_warn(ar, "failed to push frame: %d\n", ret);
3830
3831 spin_lock_bh(&ar->htt.tx_lock);
3832 ath10k_htt_tx_dec_pending(htt);
3833 if (is_mgmt)
3834 ath10k_htt_tx_mgmt_dec_pending(htt);
3835 spin_unlock_bh(&ar->htt.tx_lock);
3836
3837 return ret;
3838 }
3839
3840 spin_lock_bh(&ar->htt.tx_lock);
3841 artxq->num_fw_queued++;
3842 spin_unlock_bh(&ar->htt.tx_lock);
3843
3844 return skb_len;
3845 }
3846
3847 void ath10k_mac_tx_push_pending(struct ath10k *ar)
3848 {
3849 struct ieee80211_hw *hw = ar->hw;
3850 struct ieee80211_txq *txq;
3851 struct ath10k_txq *artxq;
3852 struct ath10k_txq *last;
3853 int ret;
3854 int max;
3855
3856 if (ar->htt.num_pending_tx >= (ar->htt.max_num_pending_tx / 2))
3857 return;
3858
3859 spin_lock_bh(&ar->txqs_lock);
3860 rcu_read_lock();
3861
3862 last = list_last_entry(&ar->txqs, struct ath10k_txq, list);
3863 while (!list_empty(&ar->txqs)) {
3864 artxq = list_first_entry(&ar->txqs, struct ath10k_txq, list);
3865 txq = container_of((void *)artxq, struct ieee80211_txq,
3866 drv_priv);
3867
3868 /* Prevent aggressive sta/tid taking over tx queue */
3869 max = 16;
3870 ret = 0;
3871 while (ath10k_mac_tx_can_push(hw, txq) && max--) {
3872 ret = ath10k_mac_tx_push_txq(hw, txq);
3873 if (ret < 0)
3874 break;
3875 }
3876
3877 list_del_init(&artxq->list);
3878 if (ret != -ENOENT)
3879 list_add_tail(&artxq->list, &ar->txqs);
3880
3881 ath10k_htt_tx_txq_update(hw, txq);
3882
3883 if (artxq == last || (ret < 0 && ret != -ENOENT))
3884 break;
3885 }
3886
3887 rcu_read_unlock();
3888 spin_unlock_bh(&ar->txqs_lock);
3889 }
3890
3891 /************/
3892 /* Scanning */
3893 /************/
3894
3895 void __ath10k_scan_finish(struct ath10k *ar)
3896 {
3897 lockdep_assert_held(&ar->data_lock);
3898
3899 switch (ar->scan.state) {
3900 case ATH10K_SCAN_IDLE:
3901 break;
3902 case ATH10K_SCAN_RUNNING:
3903 case ATH10K_SCAN_ABORTING:
3904 if (!ar->scan.is_roc) {
3905 struct cfg80211_scan_info info = {
3906 .aborted = (ar->scan.state ==
3907 ATH10K_SCAN_ABORTING),
3908 };
3909
3910 ieee80211_scan_completed(ar->hw, &info);
3911 } else if (ar->scan.roc_notify) {
3912 ieee80211_remain_on_channel_expired(ar->hw);
3913 }
3914 /* fall through */
3915 case ATH10K_SCAN_STARTING:
3916 ar->scan.state = ATH10K_SCAN_IDLE;
3917 ar->scan_channel = NULL;
3918 ar->scan.roc_freq = 0;
3919 ath10k_offchan_tx_purge(ar);
3920 cancel_delayed_work(&ar->scan.timeout);
3921 complete(&ar->scan.completed);
3922 break;
3923 }
3924 }
3925
3926 void ath10k_scan_finish(struct ath10k *ar)
3927 {
3928 spin_lock_bh(&ar->data_lock);
3929 __ath10k_scan_finish(ar);
3930 spin_unlock_bh(&ar->data_lock);
3931 }
3932
3933 static int ath10k_scan_stop(struct ath10k *ar)
3934 {
3935 struct wmi_stop_scan_arg arg = {
3936 .req_id = 1, /* FIXME */
3937 .req_type = WMI_SCAN_STOP_ONE,
3938 .u.scan_id = ATH10K_SCAN_ID,
3939 };
3940 int ret;
3941
3942 lockdep_assert_held(&ar->conf_mutex);
3943
3944 ret = ath10k_wmi_stop_scan(ar, &arg);
3945 if (ret) {
3946 ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
3947 goto out;
3948 }
3949
3950 ret = wait_for_completion_timeout(&ar->scan.completed, 3 * HZ);
3951 if (ret == 0) {
3952 ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
3953 ret = -ETIMEDOUT;
3954 } else if (ret > 0) {
3955 ret = 0;
3956 }
3957
3958 out:
3959 /* Scan state should be updated upon scan completion but in case
3960 * firmware fails to deliver the event (for whatever reason) it is
3961 * desired to clean up scan state anyway. Firmware may have just
3962 * dropped the scan completion event delivery due to transport pipe
3963 * being overflown with data and/or it can recover on its own before
3964 * next scan request is submitted.
3965 */
3966 spin_lock_bh(&ar->data_lock);
3967 if (ar->scan.state != ATH10K_SCAN_IDLE)
3968 __ath10k_scan_finish(ar);
3969 spin_unlock_bh(&ar->data_lock);
3970
3971 return ret;
3972 }
3973
3974 static void ath10k_scan_abort(struct ath10k *ar)
3975 {
3976 int ret;
3977
3978 lockdep_assert_held(&ar->conf_mutex);
3979
3980 spin_lock_bh(&ar->data_lock);
3981
3982 switch (ar->scan.state) {
3983 case ATH10K_SCAN_IDLE:
3984 /* This can happen if timeout worker kicked in and called
3985 * abortion while scan completion was being processed.
3986 */
3987 break;
3988 case ATH10K_SCAN_STARTING:
3989 case ATH10K_SCAN_ABORTING:
3990 ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
3991 ath10k_scan_state_str(ar->scan.state),
3992 ar->scan.state);
3993 break;
3994 case ATH10K_SCAN_RUNNING:
3995 ar->scan.state = ATH10K_SCAN_ABORTING;
3996 spin_unlock_bh(&ar->data_lock);
3997
3998 ret = ath10k_scan_stop(ar);
3999 if (ret)
4000 ath10k_warn(ar, "failed to abort scan: %d\n", ret);
4001
4002 spin_lock_bh(&ar->data_lock);
4003 break;
4004 }
4005
4006 spin_unlock_bh(&ar->data_lock);
4007 }
4008
4009 void ath10k_scan_timeout_work(struct work_struct *work)
4010 {
4011 struct ath10k *ar = container_of(work, struct ath10k,
4012 scan.timeout.work);
4013
4014 mutex_lock(&ar->conf_mutex);
4015 ath10k_scan_abort(ar);
4016 mutex_unlock(&ar->conf_mutex);
4017 }
4018
4019 static int ath10k_start_scan(struct ath10k *ar,
4020 const struct wmi_start_scan_arg *arg)
4021 {
4022 int ret;
4023
4024 lockdep_assert_held(&ar->conf_mutex);
4025
4026 ret = ath10k_wmi_start_scan(ar, arg);
4027 if (ret)
4028 return ret;
4029
4030 ret = wait_for_completion_timeout(&ar->scan.started, 1 * HZ);
4031 if (ret == 0) {
4032 ret = ath10k_scan_stop(ar);
4033 if (ret)
4034 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
4035
4036 return -ETIMEDOUT;
4037 }
4038
4039 /* If we failed to start the scan, return error code at
4040 * this point. This is probably due to some issue in the
4041 * firmware, but no need to wedge the driver due to that...
4042 */
4043 spin_lock_bh(&ar->data_lock);
4044 if (ar->scan.state == ATH10K_SCAN_IDLE) {
4045 spin_unlock_bh(&ar->data_lock);
4046 return -EINVAL;
4047 }
4048 spin_unlock_bh(&ar->data_lock);
4049
4050 return 0;
4051 }
4052
4053 /**********************/
4054 /* mac80211 callbacks */
4055 /**********************/
4056
4057 static void ath10k_mac_op_tx(struct ieee80211_hw *hw,
4058 struct ieee80211_tx_control *control,
4059 struct sk_buff *skb)
4060 {
4061 struct ath10k *ar = hw->priv;
4062 struct ath10k_htt *htt = &ar->htt;
4063 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
4064 struct ieee80211_vif *vif = info->control.vif;
4065 struct ieee80211_sta *sta = control->sta;
4066 struct ieee80211_txq *txq = NULL;
4067 struct ieee80211_hdr *hdr = (void *)skb->data;
4068 enum ath10k_hw_txrx_mode txmode;
4069 enum ath10k_mac_tx_path txpath;
4070 bool is_htt;
4071 bool is_mgmt;
4072 bool is_presp;
4073 int ret;
4074
4075 ath10k_mac_tx_h_fill_cb(ar, vif, txq, skb);
4076
4077 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
4078 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
4079 is_htt = (txpath == ATH10K_MAC_TX_HTT ||
4080 txpath == ATH10K_MAC_TX_HTT_MGMT);
4081 is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);
4082
4083 if (is_htt) {
4084 spin_lock_bh(&ar->htt.tx_lock);
4085 is_presp = ieee80211_is_probe_resp(hdr->frame_control);
4086
4087 ret = ath10k_htt_tx_inc_pending(htt);
4088 if (ret) {
4089 ath10k_warn(ar, "failed to increase tx pending count: %d, dropping\n",
4090 ret);
4091 spin_unlock_bh(&ar->htt.tx_lock);
4092 ieee80211_free_txskb(ar->hw, skb);
4093 return;
4094 }
4095
4096 ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);
4097 if (ret) {
4098 ath10k_dbg(ar, ATH10K_DBG_MAC, "failed to increase tx mgmt pending count: %d, dropping\n",
4099 ret);
4100 ath10k_htt_tx_dec_pending(htt);
4101 spin_unlock_bh(&ar->htt.tx_lock);
4102 ieee80211_free_txskb(ar->hw, skb);
4103 return;
4104 }
4105 spin_unlock_bh(&ar->htt.tx_lock);
4106 }
4107
4108 ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
4109 if (ret) {
4110 ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
4111 if (is_htt) {
4112 spin_lock_bh(&ar->htt.tx_lock);
4113 ath10k_htt_tx_dec_pending(htt);
4114 if (is_mgmt)
4115 ath10k_htt_tx_mgmt_dec_pending(htt);
4116 spin_unlock_bh(&ar->htt.tx_lock);
4117 }
4118 return;
4119 }
4120 }
4121
4122 static void ath10k_mac_op_wake_tx_queue(struct ieee80211_hw *hw,
4123 struct ieee80211_txq *txq)
4124 {
4125 struct ath10k *ar = hw->priv;
4126 struct ath10k_txq *artxq = (void *)txq->drv_priv;
4127 struct ieee80211_txq *f_txq;
4128 struct ath10k_txq *f_artxq;
4129 int ret = 0;
4130 int max = 16;
4131
4132 spin_lock_bh(&ar->txqs_lock);
4133 if (list_empty(&artxq->list))
4134 list_add_tail(&artxq->list, &ar->txqs);
4135
4136 f_artxq = list_first_entry(&ar->txqs, struct ath10k_txq, list);
4137 f_txq = container_of((void *)f_artxq, struct ieee80211_txq, drv_priv);
4138 list_del_init(&f_artxq->list);
4139
4140 while (ath10k_mac_tx_can_push(hw, f_txq) && max--) {
4141 ret = ath10k_mac_tx_push_txq(hw, f_txq);
4142 if (ret)
4143 break;
4144 }
4145 if (ret != -ENOENT)
4146 list_add_tail(&f_artxq->list, &ar->txqs);
4147 spin_unlock_bh(&ar->txqs_lock);
4148
4149 ath10k_htt_tx_txq_update(hw, f_txq);
4150 ath10k_htt_tx_txq_update(hw, txq);
4151 }
4152
4153 /* Must not be called with conf_mutex held as workers can use that also. */
4154 void ath10k_drain_tx(struct ath10k *ar)
4155 {
4156 /* make sure rcu-protected mac80211 tx path itself is drained */
4157 synchronize_net();
4158
4159 ath10k_offchan_tx_purge(ar);
4160 ath10k_mgmt_over_wmi_tx_purge(ar);
4161
4162 cancel_work_sync(&ar->offchan_tx_work);
4163 cancel_work_sync(&ar->wmi_mgmt_tx_work);
4164 }
4165
4166 void ath10k_halt(struct ath10k *ar)
4167 {
4168 struct ath10k_vif *arvif;
4169
4170 lockdep_assert_held(&ar->conf_mutex);
4171
4172 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
4173 ar->filter_flags = 0;
4174 ar->monitor = false;
4175 ar->monitor_arvif = NULL;
4176
4177 if (ar->monitor_started)
4178 ath10k_monitor_stop(ar);
4179
4180 ar->monitor_started = false;
4181 ar->tx_paused = 0;
4182
4183 ath10k_scan_finish(ar);
4184 ath10k_peer_cleanup_all(ar);
4185 ath10k_core_stop(ar);
4186 ath10k_hif_power_down(ar);
4187
4188 spin_lock_bh(&ar->data_lock);
4189 list_for_each_entry(arvif, &ar->arvifs, list)
4190 ath10k_mac_vif_beacon_cleanup(arvif);
4191 spin_unlock_bh(&ar->data_lock);
4192 }
4193
4194 static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
4195 {
4196 struct ath10k *ar = hw->priv;
4197
4198 mutex_lock(&ar->conf_mutex);
4199
4200 *tx_ant = ar->cfg_tx_chainmask;
4201 *rx_ant = ar->cfg_rx_chainmask;
4202
4203 mutex_unlock(&ar->conf_mutex);
4204
4205 return 0;
4206 }
4207
4208 static void ath10k_check_chain_mask(struct ath10k *ar, u32 cm, const char *dbg)
4209 {
4210 /* It is not clear that allowing gaps in chainmask
4211 * is helpful. Probably it will not do what user
4212 * is hoping for, so warn in that case.
4213 */
4214 if (cm == 15 || cm == 7 || cm == 3 || cm == 1 || cm == 0)
4215 return;
4216
4217 ath10k_warn(ar, "mac %s antenna chainmask may be invalid: 0x%x. Suggested values: 15, 7, 3, 1 or 0.\n",
4218 dbg, cm);
4219 }
4220
4221 static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
4222 {
4223 int nsts = ar->vht_cap_info;
4224
4225 nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
4226 nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
4227
4228 /* If firmware does not deliver to host number of space-time
4229 * streams supported, assume it support up to 4 BF STS and return
4230 * the value for VHT CAP: nsts-1)
4231 */
4232 if (nsts == 0)
4233 return 3;
4234
4235 return nsts;
4236 }
4237
4238 static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
4239 {
4240 int sound_dim = ar->vht_cap_info;
4241
4242 sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
4243 sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
4244
4245 /* If the sounding dimension is not advertised by the firmware,
4246 * let's use a default value of 1
4247 */
4248 if (sound_dim == 0)
4249 return 1;
4250
4251 return sound_dim;
4252 }
4253
4254 static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
4255 {
4256 struct ieee80211_sta_vht_cap vht_cap = {0};
4257 u16 mcs_map;
4258 u32 val;
4259 int i;
4260
4261 vht_cap.vht_supported = 1;
4262 vht_cap.cap = ar->vht_cap_info;
4263
4264 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
4265 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
4266 val = ath10k_mac_get_vht_cap_bf_sts(ar);
4267 val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
4268 val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
4269
4270 vht_cap.cap |= val;
4271 }
4272
4273 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
4274 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
4275 val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
4276 val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
4277 val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
4278
4279 vht_cap.cap |= val;
4280 }
4281
4282 mcs_map = 0;
4283 for (i = 0; i < 8; i++) {
4284 if ((i < ar->num_rf_chains) && (ar->cfg_tx_chainmask & BIT(i)))
4285 mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
4286 else
4287 mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
4288 }
4289
4290 if (ar->cfg_tx_chainmask <= 1)
4291 vht_cap.cap &= ~IEEE80211_VHT_CAP_TXSTBC;
4292
4293 vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
4294 vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
4295
4296 return vht_cap;
4297 }
4298
4299 static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
4300 {
4301 int i;
4302 struct ieee80211_sta_ht_cap ht_cap = {0};
4303
4304 if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
4305 return ht_cap;
4306
4307 ht_cap.ht_supported = 1;
4308 ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
4309 ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
4310 ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
4311 ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
4312 ht_cap.cap |=
4313 WLAN_HT_CAP_SM_PS_DISABLED << IEEE80211_HT_CAP_SM_PS_SHIFT;
4314
4315 if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
4316 ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
4317
4318 if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
4319 ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
4320
4321 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
4322 u32 smps;
4323
4324 smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
4325 smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
4326
4327 ht_cap.cap |= smps;
4328 }
4329
4330 if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC && (ar->cfg_tx_chainmask > 1))
4331 ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
4332
4333 if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
4334 u32 stbc;
4335
4336 stbc = ar->ht_cap_info;
4337 stbc &= WMI_HT_CAP_RX_STBC;
4338 stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
4339 stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
4340 stbc &= IEEE80211_HT_CAP_RX_STBC;
4341
4342 ht_cap.cap |= stbc;
4343 }
4344
4345 if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
4346 ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
4347
4348 if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
4349 ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
4350
4351 /* max AMSDU is implicitly taken from vht_cap_info */
4352 if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
4353 ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
4354
4355 for (i = 0; i < ar->num_rf_chains; i++) {
4356 if (ar->cfg_rx_chainmask & BIT(i))
4357 ht_cap.mcs.rx_mask[i] = 0xFF;
4358 }
4359
4360 ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
4361
4362 return ht_cap;
4363 }
4364
4365 static void ath10k_mac_setup_ht_vht_cap(struct ath10k *ar)
4366 {
4367 struct ieee80211_supported_band *band;
4368 struct ieee80211_sta_vht_cap vht_cap;
4369 struct ieee80211_sta_ht_cap ht_cap;
4370
4371 ht_cap = ath10k_get_ht_cap(ar);
4372 vht_cap = ath10k_create_vht_cap(ar);
4373
4374 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
4375 band = &ar->mac.sbands[NL80211_BAND_2GHZ];
4376 band->ht_cap = ht_cap;
4377 }
4378 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
4379 band = &ar->mac.sbands[NL80211_BAND_5GHZ];
4380 band->ht_cap = ht_cap;
4381 band->vht_cap = vht_cap;
4382 }
4383 }
4384
4385 static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
4386 {
4387 int ret;
4388
4389 lockdep_assert_held(&ar->conf_mutex);
4390
4391 ath10k_check_chain_mask(ar, tx_ant, "tx");
4392 ath10k_check_chain_mask(ar, rx_ant, "rx");
4393
4394 ar->cfg_tx_chainmask = tx_ant;
4395 ar->cfg_rx_chainmask = rx_ant;
4396
4397 if ((ar->state != ATH10K_STATE_ON) &&
4398 (ar->state != ATH10K_STATE_RESTARTED))
4399 return 0;
4400
4401 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
4402 tx_ant);
4403 if (ret) {
4404 ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
4405 ret, tx_ant);
4406 return ret;
4407 }
4408
4409 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
4410 rx_ant);
4411 if (ret) {
4412 ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
4413 ret, rx_ant);
4414 return ret;
4415 }
4416
4417 /* Reload HT/VHT capability */
4418 ath10k_mac_setup_ht_vht_cap(ar);
4419
4420 return 0;
4421 }
4422
4423 static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
4424 {
4425 struct ath10k *ar = hw->priv;
4426 int ret;
4427
4428 mutex_lock(&ar->conf_mutex);
4429 ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
4430 mutex_unlock(&ar->conf_mutex);
4431 return ret;
4432 }
4433
4434 static int ath10k_start(struct ieee80211_hw *hw)
4435 {
4436 struct ath10k *ar = hw->priv;
4437 u32 param;
4438 int ret = 0;
4439
4440 /*
4441 * This makes sense only when restarting hw. It is harmless to call
4442 * unconditionally. This is necessary to make sure no HTT/WMI tx
4443 * commands will be submitted while restarting.
4444 */
4445 ath10k_drain_tx(ar);
4446
4447 mutex_lock(&ar->conf_mutex);
4448
4449 switch (ar->state) {
4450 case ATH10K_STATE_OFF:
4451 ar->state = ATH10K_STATE_ON;
4452 break;
4453 case ATH10K_STATE_RESTARTING:
4454 ar->state = ATH10K_STATE_RESTARTED;
4455 break;
4456 case ATH10K_STATE_ON:
4457 case ATH10K_STATE_RESTARTED:
4458 case ATH10K_STATE_WEDGED:
4459 WARN_ON(1);
4460 ret = -EINVAL;
4461 goto err;
4462 case ATH10K_STATE_UTF:
4463 ret = -EBUSY;
4464 goto err;
4465 }
4466
4467 ret = ath10k_hif_power_up(ar);
4468 if (ret) {
4469 ath10k_err(ar, "Could not init hif: %d\n", ret);
4470 goto err_off;
4471 }
4472
4473 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL,
4474 &ar->normal_mode_fw);
4475 if (ret) {
4476 ath10k_err(ar, "Could not init core: %d\n", ret);
4477 goto err_power_down;
4478 }
4479
4480 param = ar->wmi.pdev_param->pmf_qos;
4481 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4482 if (ret) {
4483 ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
4484 goto err_core_stop;
4485 }
4486
4487 param = ar->wmi.pdev_param->dynamic_bw;
4488 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4489 if (ret) {
4490 ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
4491 goto err_core_stop;
4492 }
4493
4494 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
4495 ret = ath10k_wmi_adaptive_qcs(ar, true);
4496 if (ret) {
4497 ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
4498 ret);
4499 goto err_core_stop;
4500 }
4501 }
4502
4503 if (test_bit(WMI_SERVICE_BURST, ar->wmi.svc_map)) {
4504 param = ar->wmi.pdev_param->burst_enable;
4505 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
4506 if (ret) {
4507 ath10k_warn(ar, "failed to disable burst: %d\n", ret);
4508 goto err_core_stop;
4509 }
4510 }
4511
4512 __ath10k_set_antenna(ar, ar->cfg_tx_chainmask, ar->cfg_rx_chainmask);
4513
4514 /*
4515 * By default FW set ARP frames ac to voice (6). In that case ARP
4516 * exchange is not working properly for UAPSD enabled AP. ARP requests
4517 * which arrives with access category 0 are processed by network stack
4518 * and send back with access category 0, but FW changes access category
4519 * to 6. Set ARP frames access category to best effort (0) solves
4520 * this problem.
4521 */
4522
4523 param = ar->wmi.pdev_param->arp_ac_override;
4524 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
4525 if (ret) {
4526 ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
4527 ret);
4528 goto err_core_stop;
4529 }
4530
4531 if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA,
4532 ar->running_fw->fw_file.fw_features)) {
4533 ret = ath10k_wmi_pdev_enable_adaptive_cca(ar, 1,
4534 WMI_CCA_DETECT_LEVEL_AUTO,
4535 WMI_CCA_DETECT_MARGIN_AUTO);
4536 if (ret) {
4537 ath10k_warn(ar, "failed to enable adaptive cca: %d\n",
4538 ret);
4539 goto err_core_stop;
4540 }
4541 }
4542
4543 param = ar->wmi.pdev_param->ani_enable;
4544 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4545 if (ret) {
4546 ath10k_warn(ar, "failed to enable ani by default: %d\n",
4547 ret);
4548 goto err_core_stop;
4549 }
4550
4551 ar->ani_enabled = true;
4552
4553 if (ath10k_peer_stats_enabled(ar)) {
4554 param = ar->wmi.pdev_param->peer_stats_update_period;
4555 ret = ath10k_wmi_pdev_set_param(ar, param,
4556 PEER_DEFAULT_STATS_UPDATE_PERIOD);
4557 if (ret) {
4558 ath10k_warn(ar,
4559 "failed to set peer stats period : %d\n",
4560 ret);
4561 goto err_core_stop;
4562 }
4563 }
4564
4565 param = ar->wmi.pdev_param->enable_btcoex;
4566 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
4567 test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
4568 ar->running_fw->fw_file.fw_features)) {
4569 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
4570 if (ret) {
4571 ath10k_warn(ar,
4572 "failed to set btcoex param: %d\n", ret);
4573 goto err_core_stop;
4574 }
4575 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
4576 }
4577
4578 ar->num_started_vdevs = 0;
4579 ath10k_regd_update(ar);
4580
4581 ath10k_spectral_start(ar);
4582 ath10k_thermal_set_throttling(ar);
4583
4584 mutex_unlock(&ar->conf_mutex);
4585 return 0;
4586
4587 err_core_stop:
4588 ath10k_core_stop(ar);
4589
4590 err_power_down:
4591 ath10k_hif_power_down(ar);
4592
4593 err_off:
4594 ar->state = ATH10K_STATE_OFF;
4595
4596 err:
4597 mutex_unlock(&ar->conf_mutex);
4598 return ret;
4599 }
4600
4601 static void ath10k_stop(struct ieee80211_hw *hw)
4602 {
4603 struct ath10k *ar = hw->priv;
4604
4605 ath10k_drain_tx(ar);
4606
4607 mutex_lock(&ar->conf_mutex);
4608 if (ar->state != ATH10K_STATE_OFF) {
4609 ath10k_halt(ar);
4610 ar->state = ATH10K_STATE_OFF;
4611 }
4612 mutex_unlock(&ar->conf_mutex);
4613
4614 cancel_delayed_work_sync(&ar->scan.timeout);
4615 cancel_work_sync(&ar->restart_work);
4616 }
4617
4618 static int ath10k_config_ps(struct ath10k *ar)
4619 {
4620 struct ath10k_vif *arvif;
4621 int ret = 0;
4622
4623 lockdep_assert_held(&ar->conf_mutex);
4624
4625 list_for_each_entry(arvif, &ar->arvifs, list) {
4626 ret = ath10k_mac_vif_setup_ps(arvif);
4627 if (ret) {
4628 ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
4629 break;
4630 }
4631 }
4632
4633 return ret;
4634 }
4635
4636 static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower)
4637 {
4638 int ret;
4639 u32 param;
4640
4641 lockdep_assert_held(&ar->conf_mutex);
4642
4643 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac txpower %d\n", txpower);
4644
4645 param = ar->wmi.pdev_param->txpower_limit2g;
4646 ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
4647 if (ret) {
4648 ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
4649 txpower, ret);
4650 return ret;
4651 }
4652
4653 param = ar->wmi.pdev_param->txpower_limit5g;
4654 ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
4655 if (ret) {
4656 ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
4657 txpower, ret);
4658 return ret;
4659 }
4660
4661 return 0;
4662 }
4663
4664 static int ath10k_mac_txpower_recalc(struct ath10k *ar)
4665 {
4666 struct ath10k_vif *arvif;
4667 int ret, txpower = -1;
4668
4669 lockdep_assert_held(&ar->conf_mutex);
4670
4671 list_for_each_entry(arvif, &ar->arvifs, list) {
4672 WARN_ON(arvif->txpower < 0);
4673
4674 if (txpower == -1)
4675 txpower = arvif->txpower;
4676 else
4677 txpower = min(txpower, arvif->txpower);
4678 }
4679
4680 if (WARN_ON(txpower == -1))
4681 return -EINVAL;
4682
4683 ret = ath10k_mac_txpower_setup(ar, txpower);
4684 if (ret) {
4685 ath10k_warn(ar, "failed to setup tx power %d: %d\n",
4686 txpower, ret);
4687 return ret;
4688 }
4689
4690 return 0;
4691 }
4692
4693 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
4694 {
4695 struct ath10k *ar = hw->priv;
4696 struct ieee80211_conf *conf = &hw->conf;
4697 int ret = 0;
4698
4699 mutex_lock(&ar->conf_mutex);
4700
4701 if (changed & IEEE80211_CONF_CHANGE_PS)
4702 ath10k_config_ps(ar);
4703
4704 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
4705 ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
4706 ret = ath10k_monitor_recalc(ar);
4707 if (ret)
4708 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4709 }
4710
4711 mutex_unlock(&ar->conf_mutex);
4712 return ret;
4713 }
4714
4715 static u32 get_nss_from_chainmask(u16 chain_mask)
4716 {
4717 if ((chain_mask & 0xf) == 0xf)
4718 return 4;
4719 else if ((chain_mask & 0x7) == 0x7)
4720 return 3;
4721 else if ((chain_mask & 0x3) == 0x3)
4722 return 2;
4723 return 1;
4724 }
4725
4726 static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
4727 {
4728 u32 value = 0;
4729 struct ath10k *ar = arvif->ar;
4730 int nsts;
4731 int sound_dim;
4732
4733 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
4734 return 0;
4735
4736 nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
4737 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
4738 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
4739 value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
4740
4741 sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
4742 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
4743 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
4744 value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
4745
4746 if (!value)
4747 return 0;
4748
4749 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
4750 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
4751
4752 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
4753 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
4754 WMI_VDEV_PARAM_TXBF_SU_TX_BFER);
4755
4756 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
4757 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
4758
4759 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
4760 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
4761 WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);
4762
4763 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
4764 ar->wmi.vdev_param->txbf, value);
4765 }
4766
4767 /*
4768 * TODO:
4769 * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
4770 * because we will send mgmt frames without CCK. This requirement
4771 * for P2P_FIND/GO_NEG should be handled by checking CCK flag
4772 * in the TX packet.
4773 */
4774 static int ath10k_add_interface(struct ieee80211_hw *hw,
4775 struct ieee80211_vif *vif)
4776 {
4777 struct ath10k *ar = hw->priv;
4778 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4779 struct ath10k_peer *peer;
4780 enum wmi_sta_powersave_param param;
4781 int ret = 0;
4782 u32 value;
4783 int bit;
4784 int i;
4785 u32 vdev_param;
4786
4787 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
4788
4789 mutex_lock(&ar->conf_mutex);
4790
4791 memset(arvif, 0, sizeof(*arvif));
4792 ath10k_mac_txq_init(vif->txq);
4793
4794 arvif->ar = ar;
4795 arvif->vif = vif;
4796
4797 INIT_LIST_HEAD(&arvif->list);
4798 INIT_WORK(&arvif->ap_csa_work, ath10k_mac_vif_ap_csa_work);
4799 INIT_DELAYED_WORK(&arvif->connection_loss_work,
4800 ath10k_mac_vif_sta_connection_loss_work);
4801
4802 for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
4803 arvif->bitrate_mask.control[i].legacy = 0xffffffff;
4804 memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
4805 sizeof(arvif->bitrate_mask.control[i].ht_mcs));
4806 memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
4807 sizeof(arvif->bitrate_mask.control[i].vht_mcs));
4808 }
4809
4810 if (ar->num_peers >= ar->max_num_peers) {
4811 ath10k_warn(ar, "refusing vdev creation due to insufficient peer entry resources in firmware\n");
4812 ret = -ENOBUFS;
4813 goto err;
4814 }
4815
4816 if (ar->free_vdev_map == 0) {
4817 ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
4818 ret = -EBUSY;
4819 goto err;
4820 }
4821 bit = __ffs64(ar->free_vdev_map);
4822
4823 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
4824 bit, ar->free_vdev_map);
4825
4826 arvif->vdev_id = bit;
4827 arvif->vdev_subtype =
4828 ath10k_wmi_get_vdev_subtype(ar, WMI_VDEV_SUBTYPE_NONE);
4829
4830 switch (vif->type) {
4831 case NL80211_IFTYPE_P2P_DEVICE:
4832 arvif->vdev_type = WMI_VDEV_TYPE_STA;
4833 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
4834 (ar, WMI_VDEV_SUBTYPE_P2P_DEVICE);
4835 break;
4836 case NL80211_IFTYPE_UNSPECIFIED:
4837 case NL80211_IFTYPE_STATION:
4838 arvif->vdev_type = WMI_VDEV_TYPE_STA;
4839 if (vif->p2p)
4840 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
4841 (ar, WMI_VDEV_SUBTYPE_P2P_CLIENT);
4842 break;
4843 case NL80211_IFTYPE_ADHOC:
4844 arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
4845 break;
4846 case NL80211_IFTYPE_MESH_POINT:
4847 if (test_bit(WMI_SERVICE_MESH_11S, ar->wmi.svc_map)) {
4848 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
4849 (ar, WMI_VDEV_SUBTYPE_MESH_11S);
4850 } else if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
4851 ret = -EINVAL;
4852 ath10k_warn(ar, "must load driver with rawmode=1 to add mesh interfaces\n");
4853 goto err;
4854 }
4855 arvif->vdev_type = WMI_VDEV_TYPE_AP;
4856 break;
4857 case NL80211_IFTYPE_AP:
4858 arvif->vdev_type = WMI_VDEV_TYPE_AP;
4859
4860 if (vif->p2p)
4861 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
4862 (ar, WMI_VDEV_SUBTYPE_P2P_GO);
4863 break;
4864 case NL80211_IFTYPE_MONITOR:
4865 arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
4866 break;
4867 default:
4868 WARN_ON(1);
4869 break;
4870 }
4871
4872 /* Using vdev_id as queue number will make it very easy to do per-vif
4873 * tx queue locking. This shouldn't wrap due to interface combinations
4874 * but do a modulo for correctness sake and prevent using offchannel tx
4875 * queues for regular vif tx.
4876 */
4877 vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
4878 for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
4879 vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
4880
4881 /* Some firmware revisions don't wait for beacon tx completion before
4882 * sending another SWBA event. This could lead to hardware using old
4883 * (freed) beacon data in some cases, e.g. tx credit starvation
4884 * combined with missed TBTT. This is very very rare.
4885 *
4886 * On non-IOMMU-enabled hosts this could be a possible security issue
4887 * because hw could beacon some random data on the air. On
4888 * IOMMU-enabled hosts DMAR faults would occur in most cases and target
4889 * device would crash.
4890 *
4891 * Since there are no beacon tx completions (implicit nor explicit)
4892 * propagated to host the only workaround for this is to allocate a
4893 * DMA-coherent buffer for a lifetime of a vif and use it for all
4894 * beacon tx commands. Worst case for this approach is some beacons may
4895 * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
4896 */
4897 if (vif->type == NL80211_IFTYPE_ADHOC ||
4898 vif->type == NL80211_IFTYPE_MESH_POINT ||
4899 vif->type == NL80211_IFTYPE_AP) {
4900 arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
4901 IEEE80211_MAX_FRAME_LEN,
4902 &arvif->beacon_paddr,
4903 GFP_ATOMIC);
4904 if (!arvif->beacon_buf) {
4905 ret = -ENOMEM;
4906 ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
4907 ret);
4908 goto err;
4909 }
4910 }
4911 if (test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags))
4912 arvif->nohwcrypt = true;
4913
4914 if (arvif->nohwcrypt &&
4915 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
4916 ath10k_warn(ar, "cryptmode module param needed for sw crypto\n");
4917 goto err;
4918 }
4919
4920 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
4921 arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
4922 arvif->beacon_buf ? "single-buf" : "per-skb");
4923
4924 ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
4925 arvif->vdev_subtype, vif->addr);
4926 if (ret) {
4927 ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
4928 arvif->vdev_id, ret);
4929 goto err;
4930 }
4931
4932 ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
4933 spin_lock_bh(&ar->data_lock);
4934 list_add(&arvif->list, &ar->arvifs);
4935 spin_unlock_bh(&ar->data_lock);
4936
4937 /* It makes no sense to have firmware do keepalives. mac80211 already
4938 * takes care of this with idle connection polling.
4939 */
4940 ret = ath10k_mac_vif_disable_keepalive(arvif);
4941 if (ret) {
4942 ath10k_warn(ar, "failed to disable keepalive on vdev %i: %d\n",
4943 arvif->vdev_id, ret);
4944 goto err_vdev_delete;
4945 }
4946
4947 arvif->def_wep_key_idx = -1;
4948
4949 vdev_param = ar->wmi.vdev_param->tx_encap_type;
4950 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4951 ATH10K_HW_TXRX_NATIVE_WIFI);
4952 /* 10.X firmware does not support this VDEV parameter. Do not warn */
4953 if (ret && ret != -EOPNOTSUPP) {
4954 ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
4955 arvif->vdev_id, ret);
4956 goto err_vdev_delete;
4957 }
4958
4959 /* Configuring number of spatial stream for monitor interface is causing
4960 * target assert in qca9888 and qca6174.
4961 */
4962 if (ar->cfg_tx_chainmask && (vif->type != NL80211_IFTYPE_MONITOR)) {
4963 u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
4964
4965 vdev_param = ar->wmi.vdev_param->nss;
4966 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4967 nss);
4968 if (ret) {
4969 ath10k_warn(ar, "failed to set vdev %i chainmask 0x%x, nss %i: %d\n",
4970 arvif->vdev_id, ar->cfg_tx_chainmask, nss,
4971 ret);
4972 goto err_vdev_delete;
4973 }
4974 }
4975
4976 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
4977 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4978 ret = ath10k_peer_create(ar, vif, NULL, arvif->vdev_id,
4979 vif->addr, WMI_PEER_TYPE_DEFAULT);
4980 if (ret) {
4981 ath10k_warn(ar, "failed to create vdev %i peer for AP/IBSS: %d\n",
4982 arvif->vdev_id, ret);
4983 goto err_vdev_delete;
4984 }
4985
4986 spin_lock_bh(&ar->data_lock);
4987
4988 peer = ath10k_peer_find(ar, arvif->vdev_id, vif->addr);
4989 if (!peer) {
4990 ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
4991 vif->addr, arvif->vdev_id);
4992 spin_unlock_bh(&ar->data_lock);
4993 ret = -ENOENT;
4994 goto err_peer_delete;
4995 }
4996
4997 arvif->peer_id = find_first_bit(peer->peer_ids,
4998 ATH10K_MAX_NUM_PEER_IDS);
4999
5000 spin_unlock_bh(&ar->data_lock);
5001 } else {
5002 arvif->peer_id = HTT_INVALID_PEERID;
5003 }
5004
5005 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
5006 ret = ath10k_mac_set_kickout(arvif);
5007 if (ret) {
5008 ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
5009 arvif->vdev_id, ret);
5010 goto err_peer_delete;
5011 }
5012 }
5013
5014 if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
5015 param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
5016 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
5017 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
5018 param, value);
5019 if (ret) {
5020 ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
5021 arvif->vdev_id, ret);
5022 goto err_peer_delete;
5023 }
5024
5025 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
5026 if (ret) {
5027 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
5028 arvif->vdev_id, ret);
5029 goto err_peer_delete;
5030 }
5031
5032 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
5033 if (ret) {
5034 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
5035 arvif->vdev_id, ret);
5036 goto err_peer_delete;
5037 }
5038 }
5039
5040 ret = ath10k_mac_set_txbf_conf(arvif);
5041 if (ret) {
5042 ath10k_warn(ar, "failed to set txbf for vdev %d: %d\n",
5043 arvif->vdev_id, ret);
5044 goto err_peer_delete;
5045 }
5046
5047 ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
5048 if (ret) {
5049 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
5050 arvif->vdev_id, ret);
5051 goto err_peer_delete;
5052 }
5053
5054 arvif->txpower = vif->bss_conf.txpower;
5055 ret = ath10k_mac_txpower_recalc(ar);
5056 if (ret) {
5057 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
5058 goto err_peer_delete;
5059 }
5060
5061 if (vif->type == NL80211_IFTYPE_MONITOR) {
5062 ar->monitor_arvif = arvif;
5063 ret = ath10k_monitor_recalc(ar);
5064 if (ret) {
5065 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5066 goto err_peer_delete;
5067 }
5068 }
5069
5070 spin_lock_bh(&ar->htt.tx_lock);
5071 if (!ar->tx_paused)
5072 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
5073 spin_unlock_bh(&ar->htt.tx_lock);
5074
5075 mutex_unlock(&ar->conf_mutex);
5076 return 0;
5077
5078 err_peer_delete:
5079 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5080 arvif->vdev_type == WMI_VDEV_TYPE_IBSS)
5081 ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
5082
5083 err_vdev_delete:
5084 ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
5085 ar->free_vdev_map |= 1LL << arvif->vdev_id;
5086 spin_lock_bh(&ar->data_lock);
5087 list_del(&arvif->list);
5088 spin_unlock_bh(&ar->data_lock);
5089
5090 err:
5091 if (arvif->beacon_buf) {
5092 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
5093 arvif->beacon_buf, arvif->beacon_paddr);
5094 arvif->beacon_buf = NULL;
5095 }
5096
5097 mutex_unlock(&ar->conf_mutex);
5098
5099 return ret;
5100 }
5101
5102 static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
5103 {
5104 int i;
5105
5106 for (i = 0; i < BITS_PER_LONG; i++)
5107 ath10k_mac_vif_tx_unlock(arvif, i);
5108 }
5109
5110 static void ath10k_remove_interface(struct ieee80211_hw *hw,
5111 struct ieee80211_vif *vif)
5112 {
5113 struct ath10k *ar = hw->priv;
5114 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5115 struct ath10k_peer *peer;
5116 int ret;
5117 int i;
5118
5119 cancel_work_sync(&arvif->ap_csa_work);
5120 cancel_delayed_work_sync(&arvif->connection_loss_work);
5121
5122 mutex_lock(&ar->conf_mutex);
5123
5124 spin_lock_bh(&ar->data_lock);
5125 ath10k_mac_vif_beacon_cleanup(arvif);
5126 spin_unlock_bh(&ar->data_lock);
5127
5128 ret = ath10k_spectral_vif_stop(arvif);
5129 if (ret)
5130 ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
5131 arvif->vdev_id, ret);
5132
5133 ar->free_vdev_map |= 1LL << arvif->vdev_id;
5134 spin_lock_bh(&ar->data_lock);
5135 list_del(&arvif->list);
5136 spin_unlock_bh(&ar->data_lock);
5137
5138 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5139 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5140 ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
5141 vif->addr);
5142 if (ret)
5143 ath10k_warn(ar, "failed to submit AP/IBSS self-peer removal on vdev %i: %d\n",
5144 arvif->vdev_id, ret);
5145
5146 kfree(arvif->u.ap.noa_data);
5147 }
5148
5149 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
5150 arvif->vdev_id);
5151
5152 ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
5153 if (ret)
5154 ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
5155 arvif->vdev_id, ret);
5156
5157 /* Some firmware revisions don't notify host about self-peer removal
5158 * until after associated vdev is deleted.
5159 */
5160 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5161 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5162 ret = ath10k_wait_for_peer_deleted(ar, arvif->vdev_id,
5163 vif->addr);
5164 if (ret)
5165 ath10k_warn(ar, "failed to remove AP self-peer on vdev %i: %d\n",
5166 arvif->vdev_id, ret);
5167
5168 spin_lock_bh(&ar->data_lock);
5169 ar->num_peers--;
5170 spin_unlock_bh(&ar->data_lock);
5171 }
5172
5173 spin_lock_bh(&ar->data_lock);
5174 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
5175 peer = ar->peer_map[i];
5176 if (!peer)
5177 continue;
5178
5179 if (peer->vif == vif) {
5180 ath10k_warn(ar, "found vif peer %pM entry on vdev %i after it was supposedly removed\n",
5181 vif->addr, arvif->vdev_id);
5182 peer->vif = NULL;
5183 }
5184 }
5185 spin_unlock_bh(&ar->data_lock);
5186
5187 ath10k_peer_cleanup(ar, arvif->vdev_id);
5188 ath10k_mac_txq_unref(ar, vif->txq);
5189
5190 if (vif->type == NL80211_IFTYPE_MONITOR) {
5191 ar->monitor_arvif = NULL;
5192 ret = ath10k_monitor_recalc(ar);
5193 if (ret)
5194 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5195 }
5196
5197 spin_lock_bh(&ar->htt.tx_lock);
5198 ath10k_mac_vif_tx_unlock_all(arvif);
5199 spin_unlock_bh(&ar->htt.tx_lock);
5200
5201 ath10k_mac_txq_unref(ar, vif->txq);
5202
5203 mutex_unlock(&ar->conf_mutex);
5204 }
5205
5206 /*
5207 * FIXME: Has to be verified.
5208 */
5209 #define SUPPORTED_FILTERS \
5210 (FIF_ALLMULTI | \
5211 FIF_CONTROL | \
5212 FIF_PSPOLL | \
5213 FIF_OTHER_BSS | \
5214 FIF_BCN_PRBRESP_PROMISC | \
5215 FIF_PROBE_REQ | \
5216 FIF_FCSFAIL)
5217
5218 static void ath10k_configure_filter(struct ieee80211_hw *hw,
5219 unsigned int changed_flags,
5220 unsigned int *total_flags,
5221 u64 multicast)
5222 {
5223 struct ath10k *ar = hw->priv;
5224 int ret;
5225
5226 mutex_lock(&ar->conf_mutex);
5227
5228 changed_flags &= SUPPORTED_FILTERS;
5229 *total_flags &= SUPPORTED_FILTERS;
5230 ar->filter_flags = *total_flags;
5231
5232 ret = ath10k_monitor_recalc(ar);
5233 if (ret)
5234 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5235
5236 mutex_unlock(&ar->conf_mutex);
5237 }
5238
5239 static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
5240 struct ieee80211_vif *vif,
5241 struct ieee80211_bss_conf *info,
5242 u32 changed)
5243 {
5244 struct ath10k *ar = hw->priv;
5245 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5246 int ret = 0;
5247 u32 vdev_param, pdev_param, slottime, preamble;
5248
5249 mutex_lock(&ar->conf_mutex);
5250
5251 if (changed & BSS_CHANGED_IBSS)
5252 ath10k_control_ibss(arvif, info, vif->addr);
5253
5254 if (changed & BSS_CHANGED_BEACON_INT) {
5255 arvif->beacon_interval = info->beacon_int;
5256 vdev_param = ar->wmi.vdev_param->beacon_interval;
5257 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5258 arvif->beacon_interval);
5259 ath10k_dbg(ar, ATH10K_DBG_MAC,
5260 "mac vdev %d beacon_interval %d\n",
5261 arvif->vdev_id, arvif->beacon_interval);
5262
5263 if (ret)
5264 ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
5265 arvif->vdev_id, ret);
5266 }
5267
5268 if (changed & BSS_CHANGED_BEACON) {
5269 ath10k_dbg(ar, ATH10K_DBG_MAC,
5270 "vdev %d set beacon tx mode to staggered\n",
5271 arvif->vdev_id);
5272
5273 pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
5274 ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
5275 WMI_BEACON_STAGGERED_MODE);
5276 if (ret)
5277 ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
5278 arvif->vdev_id, ret);
5279
5280 ret = ath10k_mac_setup_bcn_tmpl(arvif);
5281 if (ret)
5282 ath10k_warn(ar, "failed to update beacon template: %d\n",
5283 ret);
5284
5285 if (ieee80211_vif_is_mesh(vif)) {
5286 /* mesh doesn't use SSID but firmware needs it */
5287 strncpy(arvif->u.ap.ssid, "mesh",
5288 sizeof(arvif->u.ap.ssid));
5289 arvif->u.ap.ssid_len = 4;
5290 }
5291 }
5292
5293 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
5294 ret = ath10k_mac_setup_prb_tmpl(arvif);
5295 if (ret)
5296 ath10k_warn(ar, "failed to setup probe resp template on vdev %i: %d\n",
5297 arvif->vdev_id, ret);
5298 }
5299
5300 if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
5301 arvif->dtim_period = info->dtim_period;
5302
5303 ath10k_dbg(ar, ATH10K_DBG_MAC,
5304 "mac vdev %d dtim_period %d\n",
5305 arvif->vdev_id, arvif->dtim_period);
5306
5307 vdev_param = ar->wmi.vdev_param->dtim_period;
5308 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5309 arvif->dtim_period);
5310 if (ret)
5311 ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
5312 arvif->vdev_id, ret);
5313 }
5314
5315 if (changed & BSS_CHANGED_SSID &&
5316 vif->type == NL80211_IFTYPE_AP) {
5317 arvif->u.ap.ssid_len = info->ssid_len;
5318 if (info->ssid_len)
5319 memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
5320 arvif->u.ap.hidden_ssid = info->hidden_ssid;
5321 }
5322
5323 if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
5324 ether_addr_copy(arvif->bssid, info->bssid);
5325
5326 if (changed & BSS_CHANGED_BEACON_ENABLED)
5327 ath10k_control_beaconing(arvif, info);
5328
5329 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
5330 arvif->use_cts_prot = info->use_cts_prot;
5331 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
5332 arvif->vdev_id, info->use_cts_prot);
5333
5334 ret = ath10k_recalc_rtscts_prot(arvif);
5335 if (ret)
5336 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
5337 arvif->vdev_id, ret);
5338
5339 vdev_param = ar->wmi.vdev_param->protection_mode;
5340 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5341 info->use_cts_prot ? 1 : 0);
5342 if (ret)
5343 ath10k_warn(ar, "failed to set protection mode %d on vdev %i: %d\n",
5344 info->use_cts_prot, arvif->vdev_id, ret);
5345 }
5346
5347 if (changed & BSS_CHANGED_ERP_SLOT) {
5348 if (info->use_short_slot)
5349 slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
5350
5351 else
5352 slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
5353
5354 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
5355 arvif->vdev_id, slottime);
5356
5357 vdev_param = ar->wmi.vdev_param->slot_time;
5358 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5359 slottime);
5360 if (ret)
5361 ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
5362 arvif->vdev_id, ret);
5363 }
5364
5365 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5366 if (info->use_short_preamble)
5367 preamble = WMI_VDEV_PREAMBLE_SHORT;
5368 else
5369 preamble = WMI_VDEV_PREAMBLE_LONG;
5370
5371 ath10k_dbg(ar, ATH10K_DBG_MAC,
5372 "mac vdev %d preamble %dn",
5373 arvif->vdev_id, preamble);
5374
5375 vdev_param = ar->wmi.vdev_param->preamble;
5376 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5377 preamble);
5378 if (ret)
5379 ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
5380 arvif->vdev_id, ret);
5381 }
5382
5383 if (changed & BSS_CHANGED_ASSOC) {
5384 if (info->assoc) {
5385 /* Workaround: Make sure monitor vdev is not running
5386 * when associating to prevent some firmware revisions
5387 * (e.g. 10.1 and 10.2) from crashing.
5388 */
5389 if (ar->monitor_started)
5390 ath10k_monitor_stop(ar);
5391 ath10k_bss_assoc(hw, vif, info);
5392 ath10k_monitor_recalc(ar);
5393 } else {
5394 ath10k_bss_disassoc(hw, vif);
5395 }
5396 }
5397
5398 if (changed & BSS_CHANGED_TXPOWER) {
5399 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev_id %i txpower %d\n",
5400 arvif->vdev_id, info->txpower);
5401
5402 arvif->txpower = info->txpower;
5403 ret = ath10k_mac_txpower_recalc(ar);
5404 if (ret)
5405 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
5406 }
5407
5408 if (changed & BSS_CHANGED_PS) {
5409 arvif->ps = vif->bss_conf.ps;
5410
5411 ret = ath10k_config_ps(ar);
5412 if (ret)
5413 ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
5414 arvif->vdev_id, ret);
5415 }
5416
5417 mutex_unlock(&ar->conf_mutex);
5418 }
5419
5420 static void ath10k_mac_op_set_coverage_class(struct ieee80211_hw *hw, s16 value)
5421 {
5422 struct ath10k *ar = hw->priv;
5423
5424 /* This function should never be called if setting the coverage class
5425 * is not supported on this hardware.
5426 */
5427 if (!ar->hw_params.hw_ops->set_coverage_class) {
5428 WARN_ON_ONCE(1);
5429 return;
5430 }
5431 ar->hw_params.hw_ops->set_coverage_class(ar, value);
5432 }
5433
5434 static int ath10k_hw_scan(struct ieee80211_hw *hw,
5435 struct ieee80211_vif *vif,
5436 struct ieee80211_scan_request *hw_req)
5437 {
5438 struct ath10k *ar = hw->priv;
5439 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5440 struct cfg80211_scan_request *req = &hw_req->req;
5441 struct wmi_start_scan_arg arg;
5442 int ret = 0;
5443 int i;
5444
5445 mutex_lock(&ar->conf_mutex);
5446
5447 spin_lock_bh(&ar->data_lock);
5448 switch (ar->scan.state) {
5449 case ATH10K_SCAN_IDLE:
5450 reinit_completion(&ar->scan.started);
5451 reinit_completion(&ar->scan.completed);
5452 ar->scan.state = ATH10K_SCAN_STARTING;
5453 ar->scan.is_roc = false;
5454 ar->scan.vdev_id = arvif->vdev_id;
5455 ret = 0;
5456 break;
5457 case ATH10K_SCAN_STARTING:
5458 case ATH10K_SCAN_RUNNING:
5459 case ATH10K_SCAN_ABORTING:
5460 ret = -EBUSY;
5461 break;
5462 }
5463 spin_unlock_bh(&ar->data_lock);
5464
5465 if (ret)
5466 goto exit;
5467
5468 memset(&arg, 0, sizeof(arg));
5469 ath10k_wmi_start_scan_init(ar, &arg);
5470 arg.vdev_id = arvif->vdev_id;
5471 arg.scan_id = ATH10K_SCAN_ID;
5472
5473 if (req->ie_len) {
5474 arg.ie_len = req->ie_len;
5475 memcpy(arg.ie, req->ie, arg.ie_len);
5476 }
5477
5478 if (req->n_ssids) {
5479 arg.n_ssids = req->n_ssids;
5480 for (i = 0; i < arg.n_ssids; i++) {
5481 arg.ssids[i].len = req->ssids[i].ssid_len;
5482 arg.ssids[i].ssid = req->ssids[i].ssid;
5483 }
5484 } else {
5485 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
5486 }
5487
5488 if (req->n_channels) {
5489 arg.n_channels = req->n_channels;
5490 for (i = 0; i < arg.n_channels; i++)
5491 arg.channels[i] = req->channels[i]->center_freq;
5492 }
5493
5494 ret = ath10k_start_scan(ar, &arg);
5495 if (ret) {
5496 ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
5497 spin_lock_bh(&ar->data_lock);
5498 ar->scan.state = ATH10K_SCAN_IDLE;
5499 spin_unlock_bh(&ar->data_lock);
5500 }
5501
5502 /* Add a 200ms margin to account for event/command processing */
5503 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
5504 msecs_to_jiffies(arg.max_scan_time +
5505 200));
5506
5507 exit:
5508 mutex_unlock(&ar->conf_mutex);
5509 return ret;
5510 }
5511
5512 static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
5513 struct ieee80211_vif *vif)
5514 {
5515 struct ath10k *ar = hw->priv;
5516
5517 mutex_lock(&ar->conf_mutex);
5518 ath10k_scan_abort(ar);
5519 mutex_unlock(&ar->conf_mutex);
5520
5521 cancel_delayed_work_sync(&ar->scan.timeout);
5522 }
5523
5524 static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
5525 struct ath10k_vif *arvif,
5526 enum set_key_cmd cmd,
5527 struct ieee80211_key_conf *key)
5528 {
5529 u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
5530 int ret;
5531
5532 /* 10.1 firmware branch requires default key index to be set to group
5533 * key index after installing it. Otherwise FW/HW Txes corrupted
5534 * frames with multi-vif APs. This is not required for main firmware
5535 * branch (e.g. 636).
5536 *
5537 * This is also needed for 636 fw for IBSS-RSN to work more reliably.
5538 *
5539 * FIXME: It remains unknown if this is required for multi-vif STA
5540 * interfaces on 10.1.
5541 */
5542
5543 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
5544 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
5545 return;
5546
5547 if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
5548 return;
5549
5550 if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
5551 return;
5552
5553 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
5554 return;
5555
5556 if (cmd != SET_KEY)
5557 return;
5558
5559 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5560 key->keyidx);
5561 if (ret)
5562 ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
5563 arvif->vdev_id, ret);
5564 }
5565
5566 static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
5567 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
5568 struct ieee80211_key_conf *key)
5569 {
5570 struct ath10k *ar = hw->priv;
5571 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5572 struct ath10k_peer *peer;
5573 const u8 *peer_addr;
5574 bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
5575 key->cipher == WLAN_CIPHER_SUITE_WEP104;
5576 int ret = 0;
5577 int ret2;
5578 u32 flags = 0;
5579 u32 flags2;
5580
5581 /* this one needs to be done in software */
5582 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
5583 return 1;
5584
5585 if (arvif->nohwcrypt)
5586 return 1;
5587
5588 if (key->keyidx > WMI_MAX_KEY_INDEX)
5589 return -ENOSPC;
5590
5591 mutex_lock(&ar->conf_mutex);
5592
5593 if (sta)
5594 peer_addr = sta->addr;
5595 else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
5596 peer_addr = vif->bss_conf.bssid;
5597 else
5598 peer_addr = vif->addr;
5599
5600 key->hw_key_idx = key->keyidx;
5601
5602 if (is_wep) {
5603 if (cmd == SET_KEY)
5604 arvif->wep_keys[key->keyidx] = key;
5605 else
5606 arvif->wep_keys[key->keyidx] = NULL;
5607 }
5608
5609 /* the peer should not disappear in mid-way (unless FW goes awry) since
5610 * we already hold conf_mutex. we just make sure its there now. */
5611 spin_lock_bh(&ar->data_lock);
5612 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
5613 spin_unlock_bh(&ar->data_lock);
5614
5615 if (!peer) {
5616 if (cmd == SET_KEY) {
5617 ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
5618 peer_addr);
5619 ret = -EOPNOTSUPP;
5620 goto exit;
5621 } else {
5622 /* if the peer doesn't exist there is no key to disable
5623 * anymore */
5624 goto exit;
5625 }
5626 }
5627
5628 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
5629 flags |= WMI_KEY_PAIRWISE;
5630 else
5631 flags |= WMI_KEY_GROUP;
5632
5633 if (is_wep) {
5634 if (cmd == DISABLE_KEY)
5635 ath10k_clear_vdev_key(arvif, key);
5636
5637 /* When WEP keys are uploaded it's possible that there are
5638 * stations associated already (e.g. when merging) without any
5639 * keys. Static WEP needs an explicit per-peer key upload.
5640 */
5641 if (vif->type == NL80211_IFTYPE_ADHOC &&
5642 cmd == SET_KEY)
5643 ath10k_mac_vif_update_wep_key(arvif, key);
5644
5645 /* 802.1x never sets the def_wep_key_idx so each set_key()
5646 * call changes default tx key.
5647 *
5648 * Static WEP sets def_wep_key_idx via .set_default_unicast_key
5649 * after first set_key().
5650 */
5651 if (cmd == SET_KEY && arvif->def_wep_key_idx == -1)
5652 flags |= WMI_KEY_TX_USAGE;
5653 }
5654
5655 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags);
5656 if (ret) {
5657 WARN_ON(ret > 0);
5658 ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
5659 arvif->vdev_id, peer_addr, ret);
5660 goto exit;
5661 }
5662
5663 /* mac80211 sets static WEP keys as groupwise while firmware requires
5664 * them to be installed twice as both pairwise and groupwise.
5665 */
5666 if (is_wep && !sta && vif->type == NL80211_IFTYPE_STATION) {
5667 flags2 = flags;
5668 flags2 &= ~WMI_KEY_GROUP;
5669 flags2 |= WMI_KEY_PAIRWISE;
5670
5671 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags2);
5672 if (ret) {
5673 WARN_ON(ret > 0);
5674 ath10k_warn(ar, "failed to install (ucast) key for vdev %i peer %pM: %d\n",
5675 arvif->vdev_id, peer_addr, ret);
5676 ret2 = ath10k_install_key(arvif, key, DISABLE_KEY,
5677 peer_addr, flags);
5678 if (ret2) {
5679 WARN_ON(ret2 > 0);
5680 ath10k_warn(ar, "failed to disable (mcast) key for vdev %i peer %pM: %d\n",
5681 arvif->vdev_id, peer_addr, ret2);
5682 }
5683 goto exit;
5684 }
5685 }
5686
5687 ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);
5688
5689 spin_lock_bh(&ar->data_lock);
5690 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
5691 if (peer && cmd == SET_KEY)
5692 peer->keys[key->keyidx] = key;
5693 else if (peer && cmd == DISABLE_KEY)
5694 peer->keys[key->keyidx] = NULL;
5695 else if (peer == NULL)
5696 /* impossible unless FW goes crazy */
5697 ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
5698 spin_unlock_bh(&ar->data_lock);
5699
5700 exit:
5701 mutex_unlock(&ar->conf_mutex);
5702 return ret;
5703 }
5704
5705 static void ath10k_set_default_unicast_key(struct ieee80211_hw *hw,
5706 struct ieee80211_vif *vif,
5707 int keyidx)
5708 {
5709 struct ath10k *ar = hw->priv;
5710 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5711 int ret;
5712
5713 mutex_lock(&arvif->ar->conf_mutex);
5714
5715 if (arvif->ar->state != ATH10K_STATE_ON)
5716 goto unlock;
5717
5718 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
5719 arvif->vdev_id, keyidx);
5720
5721 ret = ath10k_wmi_vdev_set_param(arvif->ar,
5722 arvif->vdev_id,
5723 arvif->ar->wmi.vdev_param->def_keyid,
5724 keyidx);
5725
5726 if (ret) {
5727 ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
5728 arvif->vdev_id,
5729 ret);
5730 goto unlock;
5731 }
5732
5733 arvif->def_wep_key_idx = keyidx;
5734
5735 unlock:
5736 mutex_unlock(&arvif->ar->conf_mutex);
5737 }
5738
5739 static void ath10k_sta_rc_update_wk(struct work_struct *wk)
5740 {
5741 struct ath10k *ar;
5742 struct ath10k_vif *arvif;
5743 struct ath10k_sta *arsta;
5744 struct ieee80211_sta *sta;
5745 struct cfg80211_chan_def def;
5746 enum nl80211_band band;
5747 const u8 *ht_mcs_mask;
5748 const u16 *vht_mcs_mask;
5749 u32 changed, bw, nss, smps;
5750 int err;
5751
5752 arsta = container_of(wk, struct ath10k_sta, update_wk);
5753 sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
5754 arvif = arsta->arvif;
5755 ar = arvif->ar;
5756
5757 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
5758 return;
5759
5760 band = def.chan->band;
5761 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
5762 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
5763
5764 spin_lock_bh(&ar->data_lock);
5765
5766 changed = arsta->changed;
5767 arsta->changed = 0;
5768
5769 bw = arsta->bw;
5770 nss = arsta->nss;
5771 smps = arsta->smps;
5772
5773 spin_unlock_bh(&ar->data_lock);
5774
5775 mutex_lock(&ar->conf_mutex);
5776
5777 nss = max_t(u32, 1, nss);
5778 nss = min(nss, max(ath10k_mac_max_ht_nss(ht_mcs_mask),
5779 ath10k_mac_max_vht_nss(vht_mcs_mask)));
5780
5781 if (changed & IEEE80211_RC_BW_CHANGED) {
5782 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
5783 sta->addr, bw);
5784
5785 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5786 WMI_PEER_CHAN_WIDTH, bw);
5787 if (err)
5788 ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
5789 sta->addr, bw, err);
5790 }
5791
5792 if (changed & IEEE80211_RC_NSS_CHANGED) {
5793 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
5794 sta->addr, nss);
5795
5796 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5797 WMI_PEER_NSS, nss);
5798 if (err)
5799 ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
5800 sta->addr, nss, err);
5801 }
5802
5803 if (changed & IEEE80211_RC_SMPS_CHANGED) {
5804 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
5805 sta->addr, smps);
5806
5807 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5808 WMI_PEER_SMPS_STATE, smps);
5809 if (err)
5810 ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
5811 sta->addr, smps, err);
5812 }
5813
5814 if (changed & IEEE80211_RC_SUPP_RATES_CHANGED ||
5815 changed & IEEE80211_RC_NSS_CHANGED) {
5816 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM supp rates/nss\n",
5817 sta->addr);
5818
5819 err = ath10k_station_assoc(ar, arvif->vif, sta, true);
5820 if (err)
5821 ath10k_warn(ar, "failed to reassociate station: %pM\n",
5822 sta->addr);
5823 }
5824
5825 mutex_unlock(&ar->conf_mutex);
5826 }
5827
5828 static int ath10k_mac_inc_num_stations(struct ath10k_vif *arvif,
5829 struct ieee80211_sta *sta)
5830 {
5831 struct ath10k *ar = arvif->ar;
5832
5833 lockdep_assert_held(&ar->conf_mutex);
5834
5835 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5836 return 0;
5837
5838 if (ar->num_stations >= ar->max_num_stations)
5839 return -ENOBUFS;
5840
5841 ar->num_stations++;
5842
5843 return 0;
5844 }
5845
5846 static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
5847 struct ieee80211_sta *sta)
5848 {
5849 struct ath10k *ar = arvif->ar;
5850
5851 lockdep_assert_held(&ar->conf_mutex);
5852
5853 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5854 return;
5855
5856 ar->num_stations--;
5857 }
5858
5859 struct ath10k_mac_tdls_iter_data {
5860 u32 num_tdls_stations;
5861 struct ieee80211_vif *curr_vif;
5862 };
5863
5864 static void ath10k_mac_tdls_vif_stations_count_iter(void *data,
5865 struct ieee80211_sta *sta)
5866 {
5867 struct ath10k_mac_tdls_iter_data *iter_data = data;
5868 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5869 struct ieee80211_vif *sta_vif = arsta->arvif->vif;
5870
5871 if (sta->tdls && sta_vif == iter_data->curr_vif)
5872 iter_data->num_tdls_stations++;
5873 }
5874
5875 static int ath10k_mac_tdls_vif_stations_count(struct ieee80211_hw *hw,
5876 struct ieee80211_vif *vif)
5877 {
5878 struct ath10k_mac_tdls_iter_data data = {};
5879
5880 data.curr_vif = vif;
5881
5882 ieee80211_iterate_stations_atomic(hw,
5883 ath10k_mac_tdls_vif_stations_count_iter,
5884 &data);
5885 return data.num_tdls_stations;
5886 }
5887
5888 static void ath10k_mac_tdls_vifs_count_iter(void *data, u8 *mac,
5889 struct ieee80211_vif *vif)
5890 {
5891 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5892 int *num_tdls_vifs = data;
5893
5894 if (vif->type != NL80211_IFTYPE_STATION)
5895 return;
5896
5897 if (ath10k_mac_tdls_vif_stations_count(arvif->ar->hw, vif) > 0)
5898 (*num_tdls_vifs)++;
5899 }
5900
5901 static int ath10k_mac_tdls_vifs_count(struct ieee80211_hw *hw)
5902 {
5903 int num_tdls_vifs = 0;
5904
5905 ieee80211_iterate_active_interfaces_atomic(hw,
5906 IEEE80211_IFACE_ITER_NORMAL,
5907 ath10k_mac_tdls_vifs_count_iter,
5908 &num_tdls_vifs);
5909 return num_tdls_vifs;
5910 }
5911
5912 static int ath10k_sta_state(struct ieee80211_hw *hw,
5913 struct ieee80211_vif *vif,
5914 struct ieee80211_sta *sta,
5915 enum ieee80211_sta_state old_state,
5916 enum ieee80211_sta_state new_state)
5917 {
5918 struct ath10k *ar = hw->priv;
5919 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5920 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5921 struct ath10k_peer *peer;
5922 int ret = 0;
5923 int i;
5924
5925 if (old_state == IEEE80211_STA_NOTEXIST &&
5926 new_state == IEEE80211_STA_NONE) {
5927 memset(arsta, 0, sizeof(*arsta));
5928 arsta->arvif = arvif;
5929 INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
5930
5931 for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
5932 ath10k_mac_txq_init(sta->txq[i]);
5933 }
5934
5935 /* cancel must be done outside the mutex to avoid deadlock */
5936 if ((old_state == IEEE80211_STA_NONE &&
5937 new_state == IEEE80211_STA_NOTEXIST))
5938 cancel_work_sync(&arsta->update_wk);
5939
5940 mutex_lock(&ar->conf_mutex);
5941
5942 if (old_state == IEEE80211_STA_NOTEXIST &&
5943 new_state == IEEE80211_STA_NONE) {
5944 /*
5945 * New station addition.
5946 */
5947 enum wmi_peer_type peer_type = WMI_PEER_TYPE_DEFAULT;
5948 u32 num_tdls_stations;
5949 u32 num_tdls_vifs;
5950
5951 ath10k_dbg(ar, ATH10K_DBG_MAC,
5952 "mac vdev %d peer create %pM (new sta) sta %d / %d peer %d / %d\n",
5953 arvif->vdev_id, sta->addr,
5954 ar->num_stations + 1, ar->max_num_stations,
5955 ar->num_peers + 1, ar->max_num_peers);
5956
5957 ret = ath10k_mac_inc_num_stations(arvif, sta);
5958 if (ret) {
5959 ath10k_warn(ar, "refusing to associate station: too many connected already (%d)\n",
5960 ar->max_num_stations);
5961 goto exit;
5962 }
5963
5964 if (sta->tdls)
5965 peer_type = WMI_PEER_TYPE_TDLS;
5966
5967 ret = ath10k_peer_create(ar, vif, sta, arvif->vdev_id,
5968 sta->addr, peer_type);
5969 if (ret) {
5970 ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
5971 sta->addr, arvif->vdev_id, ret);
5972 ath10k_mac_dec_num_stations(arvif, sta);
5973 goto exit;
5974 }
5975
5976 spin_lock_bh(&ar->data_lock);
5977
5978 peer = ath10k_peer_find(ar, arvif->vdev_id, sta->addr);
5979 if (!peer) {
5980 ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
5981 vif->addr, arvif->vdev_id);
5982 spin_unlock_bh(&ar->data_lock);
5983 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
5984 ath10k_mac_dec_num_stations(arvif, sta);
5985 ret = -ENOENT;
5986 goto exit;
5987 }
5988
5989 arsta->peer_id = find_first_bit(peer->peer_ids,
5990 ATH10K_MAX_NUM_PEER_IDS);
5991
5992 spin_unlock_bh(&ar->data_lock);
5993
5994 if (!sta->tdls)
5995 goto exit;
5996
5997 num_tdls_stations = ath10k_mac_tdls_vif_stations_count(hw, vif);
5998 num_tdls_vifs = ath10k_mac_tdls_vifs_count(hw);
5999
6000 if (num_tdls_vifs >= ar->max_num_tdls_vdevs &&
6001 num_tdls_stations == 0) {
6002 ath10k_warn(ar, "vdev %i exceeded maximum number of tdls vdevs %i\n",
6003 arvif->vdev_id, ar->max_num_tdls_vdevs);
6004 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
6005 ath10k_mac_dec_num_stations(arvif, sta);
6006 ret = -ENOBUFS;
6007 goto exit;
6008 }
6009
6010 if (num_tdls_stations == 0) {
6011 /* This is the first tdls peer in current vif */
6012 enum wmi_tdls_state state = WMI_TDLS_ENABLE_ACTIVE;
6013
6014 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
6015 state);
6016 if (ret) {
6017 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
6018 arvif->vdev_id, ret);
6019 ath10k_peer_delete(ar, arvif->vdev_id,
6020 sta->addr);
6021 ath10k_mac_dec_num_stations(arvif, sta);
6022 goto exit;
6023 }
6024 }
6025
6026 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
6027 WMI_TDLS_PEER_STATE_PEERING);
6028 if (ret) {
6029 ath10k_warn(ar,
6030 "failed to update tdls peer %pM for vdev %d when adding a new sta: %i\n",
6031 sta->addr, arvif->vdev_id, ret);
6032 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
6033 ath10k_mac_dec_num_stations(arvif, sta);
6034
6035 if (num_tdls_stations != 0)
6036 goto exit;
6037 ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
6038 WMI_TDLS_DISABLE);
6039 }
6040 } else if ((old_state == IEEE80211_STA_NONE &&
6041 new_state == IEEE80211_STA_NOTEXIST)) {
6042 /*
6043 * Existing station deletion.
6044 */
6045 ath10k_dbg(ar, ATH10K_DBG_MAC,
6046 "mac vdev %d peer delete %pM sta %pK (sta gone)\n",
6047 arvif->vdev_id, sta->addr, sta);
6048
6049 ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
6050 if (ret)
6051 ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
6052 sta->addr, arvif->vdev_id, ret);
6053
6054 ath10k_mac_dec_num_stations(arvif, sta);
6055
6056 spin_lock_bh(&ar->data_lock);
6057 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
6058 peer = ar->peer_map[i];
6059 if (!peer)
6060 continue;
6061
6062 if (peer->sta == sta) {
6063 ath10k_warn(ar, "found sta peer %pM (ptr %pK id %d) entry on vdev %i after it was supposedly removed\n",
6064 sta->addr, peer, i, arvif->vdev_id);
6065 peer->sta = NULL;
6066
6067 /* Clean up the peer object as well since we
6068 * must have failed to do this above.
6069 */
6070 list_del(&peer->list);
6071 ar->peer_map[i] = NULL;
6072 kfree(peer);
6073 ar->num_peers--;
6074 }
6075 }
6076 spin_unlock_bh(&ar->data_lock);
6077
6078 for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
6079 ath10k_mac_txq_unref(ar, sta->txq[i]);
6080
6081 if (!sta->tdls)
6082 goto exit;
6083
6084 if (ath10k_mac_tdls_vif_stations_count(hw, vif))
6085 goto exit;
6086
6087 /* This was the last tdls peer in current vif */
6088 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
6089 WMI_TDLS_DISABLE);
6090 if (ret) {
6091 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
6092 arvif->vdev_id, ret);
6093 }
6094 } else if (old_state == IEEE80211_STA_AUTH &&
6095 new_state == IEEE80211_STA_ASSOC &&
6096 (vif->type == NL80211_IFTYPE_AP ||
6097 vif->type == NL80211_IFTYPE_MESH_POINT ||
6098 vif->type == NL80211_IFTYPE_ADHOC)) {
6099 /*
6100 * New association.
6101 */
6102 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
6103 sta->addr);
6104
6105 ret = ath10k_station_assoc(ar, vif, sta, false);
6106 if (ret)
6107 ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
6108 sta->addr, arvif->vdev_id, ret);
6109 } else if (old_state == IEEE80211_STA_ASSOC &&
6110 new_state == IEEE80211_STA_AUTHORIZED &&
6111 sta->tdls) {
6112 /*
6113 * Tdls station authorized.
6114 */
6115 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac tdls sta %pM authorized\n",
6116 sta->addr);
6117
6118 ret = ath10k_station_assoc(ar, vif, sta, false);
6119 if (ret) {
6120 ath10k_warn(ar, "failed to associate tdls station %pM for vdev %i: %i\n",
6121 sta->addr, arvif->vdev_id, ret);
6122 goto exit;
6123 }
6124
6125 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
6126 WMI_TDLS_PEER_STATE_CONNECTED);
6127 if (ret)
6128 ath10k_warn(ar, "failed to update tdls peer %pM for vdev %i: %i\n",
6129 sta->addr, arvif->vdev_id, ret);
6130 } else if (old_state == IEEE80211_STA_ASSOC &&
6131 new_state == IEEE80211_STA_AUTH &&
6132 (vif->type == NL80211_IFTYPE_AP ||
6133 vif->type == NL80211_IFTYPE_MESH_POINT ||
6134 vif->type == NL80211_IFTYPE_ADHOC)) {
6135 /*
6136 * Disassociation.
6137 */
6138 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
6139 sta->addr);
6140
6141 ret = ath10k_station_disassoc(ar, vif, sta);
6142 if (ret)
6143 ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
6144 sta->addr, arvif->vdev_id, ret);
6145 }
6146 exit:
6147 mutex_unlock(&ar->conf_mutex);
6148 return ret;
6149 }
6150
6151 static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
6152 u16 ac, bool enable)
6153 {
6154 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6155 struct wmi_sta_uapsd_auto_trig_arg arg = {};
6156 u32 prio = 0, acc = 0;
6157 u32 value = 0;
6158 int ret = 0;
6159
6160 lockdep_assert_held(&ar->conf_mutex);
6161
6162 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
6163 return 0;
6164
6165 switch (ac) {
6166 case IEEE80211_AC_VO:
6167 value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
6168 WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
6169 prio = 7;
6170 acc = 3;
6171 break;
6172 case IEEE80211_AC_VI:
6173 value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
6174 WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
6175 prio = 5;
6176 acc = 2;
6177 break;
6178 case IEEE80211_AC_BE:
6179 value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
6180 WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
6181 prio = 2;
6182 acc = 1;
6183 break;
6184 case IEEE80211_AC_BK:
6185 value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
6186 WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
6187 prio = 0;
6188 acc = 0;
6189 break;
6190 }
6191
6192 if (enable)
6193 arvif->u.sta.uapsd |= value;
6194 else
6195 arvif->u.sta.uapsd &= ~value;
6196
6197 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
6198 WMI_STA_PS_PARAM_UAPSD,
6199 arvif->u.sta.uapsd);
6200 if (ret) {
6201 ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
6202 goto exit;
6203 }
6204
6205 if (arvif->u.sta.uapsd)
6206 value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
6207 else
6208 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
6209
6210 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
6211 WMI_STA_PS_PARAM_RX_WAKE_POLICY,
6212 value);
6213 if (ret)
6214 ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
6215
6216 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
6217 if (ret) {
6218 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
6219 arvif->vdev_id, ret);
6220 return ret;
6221 }
6222
6223 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
6224 if (ret) {
6225 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
6226 arvif->vdev_id, ret);
6227 return ret;
6228 }
6229
6230 if (test_bit(WMI_SERVICE_STA_UAPSD_BASIC_AUTO_TRIG, ar->wmi.svc_map) ||
6231 test_bit(WMI_SERVICE_STA_UAPSD_VAR_AUTO_TRIG, ar->wmi.svc_map)) {
6232 /* Only userspace can make an educated decision when to send
6233 * trigger frame. The following effectively disables u-UAPSD
6234 * autotrigger in firmware (which is enabled by default
6235 * provided the autotrigger service is available).
6236 */
6237
6238 arg.wmm_ac = acc;
6239 arg.user_priority = prio;
6240 arg.service_interval = 0;
6241 arg.suspend_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
6242 arg.delay_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
6243
6244 ret = ath10k_wmi_vdev_sta_uapsd(ar, arvif->vdev_id,
6245 arvif->bssid, &arg, 1);
6246 if (ret) {
6247 ath10k_warn(ar, "failed to set uapsd auto trigger %d\n",
6248 ret);
6249 return ret;
6250 }
6251 }
6252
6253 exit:
6254 return ret;
6255 }
6256
6257 static int ath10k_conf_tx(struct ieee80211_hw *hw,
6258 struct ieee80211_vif *vif, u16 ac,
6259 const struct ieee80211_tx_queue_params *params)
6260 {
6261 struct ath10k *ar = hw->priv;
6262 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6263 struct wmi_wmm_params_arg *p = NULL;
6264 int ret;
6265
6266 mutex_lock(&ar->conf_mutex);
6267
6268 switch (ac) {
6269 case IEEE80211_AC_VO:
6270 p = &arvif->wmm_params.ac_vo;
6271 break;
6272 case IEEE80211_AC_VI:
6273 p = &arvif->wmm_params.ac_vi;
6274 break;
6275 case IEEE80211_AC_BE:
6276 p = &arvif->wmm_params.ac_be;
6277 break;
6278 case IEEE80211_AC_BK:
6279 p = &arvif->wmm_params.ac_bk;
6280 break;
6281 }
6282
6283 if (WARN_ON(!p)) {
6284 ret = -EINVAL;
6285 goto exit;
6286 }
6287
6288 p->cwmin = params->cw_min;
6289 p->cwmax = params->cw_max;
6290 p->aifs = params->aifs;
6291
6292 /*
6293 * The channel time duration programmed in the HW is in absolute
6294 * microseconds, while mac80211 gives the txop in units of
6295 * 32 microseconds.
6296 */
6297 p->txop = params->txop * 32;
6298
6299 if (ar->wmi.ops->gen_vdev_wmm_conf) {
6300 ret = ath10k_wmi_vdev_wmm_conf(ar, arvif->vdev_id,
6301 &arvif->wmm_params);
6302 if (ret) {
6303 ath10k_warn(ar, "failed to set vdev wmm params on vdev %i: %d\n",
6304 arvif->vdev_id, ret);
6305 goto exit;
6306 }
6307 } else {
6308 /* This won't work well with multi-interface cases but it's
6309 * better than nothing.
6310 */
6311 ret = ath10k_wmi_pdev_set_wmm_params(ar, &arvif->wmm_params);
6312 if (ret) {
6313 ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
6314 goto exit;
6315 }
6316 }
6317
6318 ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
6319 if (ret)
6320 ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
6321
6322 exit:
6323 mutex_unlock(&ar->conf_mutex);
6324 return ret;
6325 }
6326
6327 #define ATH10K_ROC_TIMEOUT_HZ (2 * HZ)
6328
6329 static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
6330 struct ieee80211_vif *vif,
6331 struct ieee80211_channel *chan,
6332 int duration,
6333 enum ieee80211_roc_type type)
6334 {
6335 struct ath10k *ar = hw->priv;
6336 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6337 struct wmi_start_scan_arg arg;
6338 int ret = 0;
6339 u32 scan_time_msec;
6340
6341 mutex_lock(&ar->conf_mutex);
6342
6343 spin_lock_bh(&ar->data_lock);
6344 switch (ar->scan.state) {
6345 case ATH10K_SCAN_IDLE:
6346 reinit_completion(&ar->scan.started);
6347 reinit_completion(&ar->scan.completed);
6348 reinit_completion(&ar->scan.on_channel);
6349 ar->scan.state = ATH10K_SCAN_STARTING;
6350 ar->scan.is_roc = true;
6351 ar->scan.vdev_id = arvif->vdev_id;
6352 ar->scan.roc_freq = chan->center_freq;
6353 ar->scan.roc_notify = true;
6354 ret = 0;
6355 break;
6356 case ATH10K_SCAN_STARTING:
6357 case ATH10K_SCAN_RUNNING:
6358 case ATH10K_SCAN_ABORTING:
6359 ret = -EBUSY;
6360 break;
6361 }
6362 spin_unlock_bh(&ar->data_lock);
6363
6364 if (ret)
6365 goto exit;
6366
6367 scan_time_msec = ar->hw->wiphy->max_remain_on_channel_duration * 2;
6368
6369 memset(&arg, 0, sizeof(arg));
6370 ath10k_wmi_start_scan_init(ar, &arg);
6371 arg.vdev_id = arvif->vdev_id;
6372 arg.scan_id = ATH10K_SCAN_ID;
6373 arg.n_channels = 1;
6374 arg.channels[0] = chan->center_freq;
6375 arg.dwell_time_active = scan_time_msec;
6376 arg.dwell_time_passive = scan_time_msec;
6377 arg.max_scan_time = scan_time_msec;
6378 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
6379 arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
6380 arg.burst_duration_ms = duration;
6381
6382 ret = ath10k_start_scan(ar, &arg);
6383 if (ret) {
6384 ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
6385 spin_lock_bh(&ar->data_lock);
6386 ar->scan.state = ATH10K_SCAN_IDLE;
6387 spin_unlock_bh(&ar->data_lock);
6388 goto exit;
6389 }
6390
6391 ret = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ);
6392 if (ret == 0) {
6393 ath10k_warn(ar, "failed to switch to channel for roc scan\n");
6394
6395 ret = ath10k_scan_stop(ar);
6396 if (ret)
6397 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
6398
6399 ret = -ETIMEDOUT;
6400 goto exit;
6401 }
6402
6403 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
6404 msecs_to_jiffies(duration));
6405
6406 ret = 0;
6407 exit:
6408 mutex_unlock(&ar->conf_mutex);
6409 return ret;
6410 }
6411
6412 static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
6413 {
6414 struct ath10k *ar = hw->priv;
6415
6416 mutex_lock(&ar->conf_mutex);
6417
6418 spin_lock_bh(&ar->data_lock);
6419 ar->scan.roc_notify = false;
6420 spin_unlock_bh(&ar->data_lock);
6421
6422 ath10k_scan_abort(ar);
6423
6424 mutex_unlock(&ar->conf_mutex);
6425
6426 cancel_delayed_work_sync(&ar->scan.timeout);
6427
6428 return 0;
6429 }
6430
6431 /*
6432 * Both RTS and Fragmentation threshold are interface-specific
6433 * in ath10k, but device-specific in mac80211.
6434 */
6435
6436 static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
6437 {
6438 struct ath10k *ar = hw->priv;
6439 struct ath10k_vif *arvif;
6440 int ret = 0;
6441
6442 mutex_lock(&ar->conf_mutex);
6443 list_for_each_entry(arvif, &ar->arvifs, list) {
6444 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
6445 arvif->vdev_id, value);
6446
6447 ret = ath10k_mac_set_rts(arvif, value);
6448 if (ret) {
6449 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
6450 arvif->vdev_id, ret);
6451 break;
6452 }
6453 }
6454 mutex_unlock(&ar->conf_mutex);
6455
6456 return ret;
6457 }
6458
6459 static int ath10k_mac_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
6460 {
6461 /* Even though there's a WMI enum for fragmentation threshold no known
6462 * firmware actually implements it. Moreover it is not possible to rely
6463 * frame fragmentation to mac80211 because firmware clears the "more
6464 * fragments" bit in frame control making it impossible for remote
6465 * devices to reassemble frames.
6466 *
6467 * Hence implement a dummy callback just to say fragmentation isn't
6468 * supported. This effectively prevents mac80211 from doing frame
6469 * fragmentation in software.
6470 */
6471 return -EOPNOTSUPP;
6472 }
6473
6474 static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6475 u32 queues, bool drop)
6476 {
6477 struct ath10k *ar = hw->priv;
6478 bool skip;
6479 long time_left;
6480
6481 /* mac80211 doesn't care if we really xmit queued frames or not
6482 * we'll collect those frames either way if we stop/delete vdevs */
6483 if (drop)
6484 return;
6485
6486 mutex_lock(&ar->conf_mutex);
6487
6488 if (ar->state == ATH10K_STATE_WEDGED)
6489 goto skip;
6490
6491 time_left = wait_event_timeout(ar->htt.empty_tx_wq, ({
6492 bool empty;
6493
6494 spin_lock_bh(&ar->htt.tx_lock);
6495 empty = (ar->htt.num_pending_tx == 0);
6496 spin_unlock_bh(&ar->htt.tx_lock);
6497
6498 skip = (ar->state == ATH10K_STATE_WEDGED) ||
6499 test_bit(ATH10K_FLAG_CRASH_FLUSH,
6500 &ar->dev_flags);
6501
6502 (empty || skip);
6503 }), ATH10K_FLUSH_TIMEOUT_HZ);
6504
6505 if (time_left == 0 || skip)
6506 ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %ld\n",
6507 skip, ar->state, time_left);
6508
6509 skip:
6510 mutex_unlock(&ar->conf_mutex);
6511 }
6512
6513 /* TODO: Implement this function properly
6514 * For now it is needed to reply to Probe Requests in IBSS mode.
6515 * Propably we need this information from FW.
6516 */
6517 static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
6518 {
6519 return 1;
6520 }
6521
6522 static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
6523 enum ieee80211_reconfig_type reconfig_type)
6524 {
6525 struct ath10k *ar = hw->priv;
6526
6527 if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
6528 return;
6529
6530 mutex_lock(&ar->conf_mutex);
6531
6532 /* If device failed to restart it will be in a different state, e.g.
6533 * ATH10K_STATE_WEDGED */
6534 if (ar->state == ATH10K_STATE_RESTARTED) {
6535 ath10k_info(ar, "device successfully recovered\n");
6536 ar->state = ATH10K_STATE_ON;
6537 ieee80211_wake_queues(ar->hw);
6538 }
6539
6540 mutex_unlock(&ar->conf_mutex);
6541 }
6542
6543 static void
6544 ath10k_mac_update_bss_chan_survey(struct ath10k *ar,
6545 struct ieee80211_channel *channel)
6546 {
6547 int ret;
6548 enum wmi_bss_survey_req_type type = WMI_BSS_SURVEY_REQ_TYPE_READ_CLEAR;
6549
6550 lockdep_assert_held(&ar->conf_mutex);
6551
6552 if (!test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map) ||
6553 (ar->rx_channel != channel))
6554 return;
6555
6556 if (ar->scan.state != ATH10K_SCAN_IDLE) {
6557 ath10k_dbg(ar, ATH10K_DBG_MAC, "ignoring bss chan info request while scanning..\n");
6558 return;
6559 }
6560
6561 reinit_completion(&ar->bss_survey_done);
6562
6563 ret = ath10k_wmi_pdev_bss_chan_info_request(ar, type);
6564 if (ret) {
6565 ath10k_warn(ar, "failed to send pdev bss chan info request\n");
6566 return;
6567 }
6568
6569 ret = wait_for_completion_timeout(&ar->bss_survey_done, 3 * HZ);
6570 if (!ret) {
6571 ath10k_warn(ar, "bss channel survey timed out\n");
6572 return;
6573 }
6574 }
6575
6576 static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
6577 struct survey_info *survey)
6578 {
6579 struct ath10k *ar = hw->priv;
6580 struct ieee80211_supported_band *sband;
6581 struct survey_info *ar_survey = &ar->survey[idx];
6582 int ret = 0;
6583
6584 mutex_lock(&ar->conf_mutex);
6585
6586 sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
6587 if (sband && idx >= sband->n_channels) {
6588 idx -= sband->n_channels;
6589 sband = NULL;
6590 }
6591
6592 if (!sband)
6593 sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
6594
6595 if (!sband || idx >= sband->n_channels) {
6596 ret = -ENOENT;
6597 goto exit;
6598 }
6599
6600 ath10k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
6601
6602 spin_lock_bh(&ar->data_lock);
6603 memcpy(survey, ar_survey, sizeof(*survey));
6604 spin_unlock_bh(&ar->data_lock);
6605
6606 survey->channel = &sband->channels[idx];
6607
6608 if (ar->rx_channel == survey->channel)
6609 survey->filled |= SURVEY_INFO_IN_USE;
6610
6611 exit:
6612 mutex_unlock(&ar->conf_mutex);
6613 return ret;
6614 }
6615
6616 static bool
6617 ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
6618 enum nl80211_band band,
6619 const struct cfg80211_bitrate_mask *mask)
6620 {
6621 int num_rates = 0;
6622 int i;
6623
6624 num_rates += hweight32(mask->control[band].legacy);
6625
6626 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
6627 num_rates += hweight8(mask->control[band].ht_mcs[i]);
6628
6629 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
6630 num_rates += hweight16(mask->control[band].vht_mcs[i]);
6631
6632 return num_rates == 1;
6633 }
6634
6635 static bool
6636 ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
6637 enum nl80211_band band,
6638 const struct cfg80211_bitrate_mask *mask,
6639 int *nss)
6640 {
6641 struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
6642 u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
6643 u8 ht_nss_mask = 0;
6644 u8 vht_nss_mask = 0;
6645 int i;
6646
6647 if (mask->control[band].legacy)
6648 return false;
6649
6650 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
6651 if (mask->control[band].ht_mcs[i] == 0)
6652 continue;
6653 else if (mask->control[band].ht_mcs[i] ==
6654 sband->ht_cap.mcs.rx_mask[i])
6655 ht_nss_mask |= BIT(i);
6656 else
6657 return false;
6658 }
6659
6660 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
6661 if (mask->control[band].vht_mcs[i] == 0)
6662 continue;
6663 else if (mask->control[band].vht_mcs[i] ==
6664 ath10k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
6665 vht_nss_mask |= BIT(i);
6666 else
6667 return false;
6668 }
6669
6670 if (ht_nss_mask != vht_nss_mask)
6671 return false;
6672
6673 if (ht_nss_mask == 0)
6674 return false;
6675
6676 if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
6677 return false;
6678
6679 *nss = fls(ht_nss_mask);
6680
6681 return true;
6682 }
6683
6684 static int
6685 ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
6686 enum nl80211_band band,
6687 const struct cfg80211_bitrate_mask *mask,
6688 u8 *rate, u8 *nss)
6689 {
6690 struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
6691 int rate_idx;
6692 int i;
6693 u16 bitrate;
6694 u8 preamble;
6695 u8 hw_rate;
6696
6697 if (hweight32(mask->control[band].legacy) == 1) {
6698 rate_idx = ffs(mask->control[band].legacy) - 1;
6699
6700 hw_rate = sband->bitrates[rate_idx].hw_value;
6701 bitrate = sband->bitrates[rate_idx].bitrate;
6702
6703 if (ath10k_mac_bitrate_is_cck(bitrate))
6704 preamble = WMI_RATE_PREAMBLE_CCK;
6705 else
6706 preamble = WMI_RATE_PREAMBLE_OFDM;
6707
6708 *nss = 1;
6709 *rate = preamble << 6 |
6710 (*nss - 1) << 4 |
6711 hw_rate << 0;
6712
6713 return 0;
6714 }
6715
6716 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
6717 if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
6718 *nss = i + 1;
6719 *rate = WMI_RATE_PREAMBLE_HT << 6 |
6720 (*nss - 1) << 4 |
6721 (ffs(mask->control[band].ht_mcs[i]) - 1);
6722
6723 return 0;
6724 }
6725 }
6726
6727 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
6728 if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
6729 *nss = i + 1;
6730 *rate = WMI_RATE_PREAMBLE_VHT << 6 |
6731 (*nss - 1) << 4 |
6732 (ffs(mask->control[band].vht_mcs[i]) - 1);
6733
6734 return 0;
6735 }
6736 }
6737
6738 return -EINVAL;
6739 }
6740
6741 static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
6742 u8 rate, u8 nss, u8 sgi, u8 ldpc)
6743 {
6744 struct ath10k *ar = arvif->ar;
6745 u32 vdev_param;
6746 int ret;
6747
6748 lockdep_assert_held(&ar->conf_mutex);
6749
6750 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02hhx nss %hhu sgi %hhu\n",
6751 arvif->vdev_id, rate, nss, sgi);
6752
6753 vdev_param = ar->wmi.vdev_param->fixed_rate;
6754 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
6755 if (ret) {
6756 ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
6757 rate, ret);
6758 return ret;
6759 }
6760
6761 vdev_param = ar->wmi.vdev_param->nss;
6762 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
6763 if (ret) {
6764 ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
6765 return ret;
6766 }
6767
6768 vdev_param = ar->wmi.vdev_param->sgi;
6769 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
6770 if (ret) {
6771 ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
6772 return ret;
6773 }
6774
6775 vdev_param = ar->wmi.vdev_param->ldpc;
6776 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, ldpc);
6777 if (ret) {
6778 ath10k_warn(ar, "failed to set ldpc param %d: %d\n", ldpc, ret);
6779 return ret;
6780 }
6781
6782 return 0;
6783 }
6784
6785 static bool
6786 ath10k_mac_can_set_bitrate_mask(struct ath10k *ar,
6787 enum nl80211_band band,
6788 const struct cfg80211_bitrate_mask *mask)
6789 {
6790 int i;
6791 u16 vht_mcs;
6792
6793 /* Due to firmware limitation in WMI_PEER_ASSOC_CMDID it is impossible
6794 * to express all VHT MCS rate masks. Effectively only the following
6795 * ranges can be used: none, 0-7, 0-8 and 0-9.
6796 */
6797 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
6798 vht_mcs = mask->control[band].vht_mcs[i];
6799
6800 switch (vht_mcs) {
6801 case 0:
6802 case BIT(8) - 1:
6803 case BIT(9) - 1:
6804 case BIT(10) - 1:
6805 break;
6806 default:
6807 ath10k_warn(ar, "refusing bitrate mask with missing 0-7 VHT MCS rates\n");
6808 return false;
6809 }
6810 }
6811
6812 return true;
6813 }
6814
6815 static void ath10k_mac_set_bitrate_mask_iter(void *data,
6816 struct ieee80211_sta *sta)
6817 {
6818 struct ath10k_vif *arvif = data;
6819 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
6820 struct ath10k *ar = arvif->ar;
6821
6822 if (arsta->arvif != arvif)
6823 return;
6824
6825 spin_lock_bh(&ar->data_lock);
6826 arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
6827 spin_unlock_bh(&ar->data_lock);
6828
6829 ieee80211_queue_work(ar->hw, &arsta->update_wk);
6830 }
6831
6832 static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
6833 struct ieee80211_vif *vif,
6834 const struct cfg80211_bitrate_mask *mask)
6835 {
6836 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6837 struct cfg80211_chan_def def;
6838 struct ath10k *ar = arvif->ar;
6839 enum nl80211_band band;
6840 const u8 *ht_mcs_mask;
6841 const u16 *vht_mcs_mask;
6842 u8 rate;
6843 u8 nss;
6844 u8 sgi;
6845 u8 ldpc;
6846 int single_nss;
6847 int ret;
6848
6849 if (ath10k_mac_vif_chan(vif, &def))
6850 return -EPERM;
6851
6852 band = def.chan->band;
6853 ht_mcs_mask = mask->control[band].ht_mcs;
6854 vht_mcs_mask = mask->control[band].vht_mcs;
6855 ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
6856
6857 sgi = mask->control[band].gi;
6858 if (sgi == NL80211_TXRATE_FORCE_LGI)
6859 return -EINVAL;
6860
6861 if (ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask)) {
6862 ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
6863 &rate, &nss);
6864 if (ret) {
6865 ath10k_warn(ar, "failed to get single rate for vdev %i: %d\n",
6866 arvif->vdev_id, ret);
6867 return ret;
6868 }
6869 } else if (ath10k_mac_bitrate_mask_get_single_nss(ar, band, mask,
6870 &single_nss)) {
6871 rate = WMI_FIXED_RATE_NONE;
6872 nss = single_nss;
6873 } else {
6874 rate = WMI_FIXED_RATE_NONE;
6875 nss = min(ar->num_rf_chains,
6876 max(ath10k_mac_max_ht_nss(ht_mcs_mask),
6877 ath10k_mac_max_vht_nss(vht_mcs_mask)));
6878
6879 if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask))
6880 return -EINVAL;
6881
6882 mutex_lock(&ar->conf_mutex);
6883
6884 arvif->bitrate_mask = *mask;
6885 ieee80211_iterate_stations_atomic(ar->hw,
6886 ath10k_mac_set_bitrate_mask_iter,
6887 arvif);
6888
6889 mutex_unlock(&ar->conf_mutex);
6890 }
6891
6892 mutex_lock(&ar->conf_mutex);
6893
6894 ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
6895 if (ret) {
6896 ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
6897 arvif->vdev_id, ret);
6898 goto exit;
6899 }
6900
6901 exit:
6902 mutex_unlock(&ar->conf_mutex);
6903
6904 return ret;
6905 }
6906
6907 static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
6908 struct ieee80211_vif *vif,
6909 struct ieee80211_sta *sta,
6910 u32 changed)
6911 {
6912 struct ath10k *ar = hw->priv;
6913 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
6914 u32 bw, smps;
6915
6916 spin_lock_bh(&ar->data_lock);
6917
6918 ath10k_dbg(ar, ATH10K_DBG_MAC,
6919 "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
6920 sta->addr, changed, sta->bandwidth, sta->rx_nss,
6921 sta->smps_mode);
6922
6923 if (changed & IEEE80211_RC_BW_CHANGED) {
6924 bw = WMI_PEER_CHWIDTH_20MHZ;
6925
6926 switch (sta->bandwidth) {
6927 case IEEE80211_STA_RX_BW_20:
6928 bw = WMI_PEER_CHWIDTH_20MHZ;
6929 break;
6930 case IEEE80211_STA_RX_BW_40:
6931 bw = WMI_PEER_CHWIDTH_40MHZ;
6932 break;
6933 case IEEE80211_STA_RX_BW_80:
6934 bw = WMI_PEER_CHWIDTH_80MHZ;
6935 break;
6936 case IEEE80211_STA_RX_BW_160:
6937 ath10k_warn(ar, "Invalid bandwidth %d in rc update for %pM\n",
6938 sta->bandwidth, sta->addr);
6939 bw = WMI_PEER_CHWIDTH_20MHZ;
6940 break;
6941 }
6942
6943 arsta->bw = bw;
6944 }
6945
6946 if (changed & IEEE80211_RC_NSS_CHANGED)
6947 arsta->nss = sta->rx_nss;
6948
6949 if (changed & IEEE80211_RC_SMPS_CHANGED) {
6950 smps = WMI_PEER_SMPS_PS_NONE;
6951
6952 switch (sta->smps_mode) {
6953 case IEEE80211_SMPS_AUTOMATIC:
6954 case IEEE80211_SMPS_OFF:
6955 smps = WMI_PEER_SMPS_PS_NONE;
6956 break;
6957 case IEEE80211_SMPS_STATIC:
6958 smps = WMI_PEER_SMPS_STATIC;
6959 break;
6960 case IEEE80211_SMPS_DYNAMIC:
6961 smps = WMI_PEER_SMPS_DYNAMIC;
6962 break;
6963 case IEEE80211_SMPS_NUM_MODES:
6964 ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
6965 sta->smps_mode, sta->addr);
6966 smps = WMI_PEER_SMPS_PS_NONE;
6967 break;
6968 }
6969
6970 arsta->smps = smps;
6971 }
6972
6973 arsta->changed |= changed;
6974
6975 spin_unlock_bh(&ar->data_lock);
6976
6977 ieee80211_queue_work(hw, &arsta->update_wk);
6978 }
6979
6980 static void ath10k_offset_tsf(struct ieee80211_hw *hw,
6981 struct ieee80211_vif *vif, s64 tsf_offset)
6982 {
6983 struct ath10k *ar = hw->priv;
6984 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6985 u32 offset, vdev_param;
6986 int ret;
6987
6988 if (tsf_offset < 0) {
6989 vdev_param = ar->wmi.vdev_param->dec_tsf;
6990 offset = -tsf_offset;
6991 } else {
6992 vdev_param = ar->wmi.vdev_param->inc_tsf;
6993 offset = tsf_offset;
6994 }
6995
6996 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
6997 vdev_param, offset);
6998
6999 if (ret && ret != -EOPNOTSUPP)
7000 ath10k_warn(ar, "failed to set tsf offset %d cmd %d: %d\n",
7001 offset, vdev_param, ret);
7002 }
7003
7004 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
7005 struct ieee80211_vif *vif,
7006 struct ieee80211_ampdu_params *params)
7007 {
7008 struct ath10k *ar = hw->priv;
7009 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
7010 struct ieee80211_sta *sta = params->sta;
7011 enum ieee80211_ampdu_mlme_action action = params->action;
7012 u16 tid = params->tid;
7013
7014 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
7015 arvif->vdev_id, sta->addr, tid, action);
7016
7017 switch (action) {
7018 case IEEE80211_AMPDU_RX_START:
7019 case IEEE80211_AMPDU_RX_STOP:
7020 /* HTT AddBa/DelBa events trigger mac80211 Rx BA session
7021 * creation/removal. Do we need to verify this?
7022 */
7023 return 0;
7024 case IEEE80211_AMPDU_TX_START:
7025 case IEEE80211_AMPDU_TX_STOP_CONT:
7026 case IEEE80211_AMPDU_TX_STOP_FLUSH:
7027 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
7028 case IEEE80211_AMPDU_TX_OPERATIONAL:
7029 /* Firmware offloads Tx aggregation entirely so deny mac80211
7030 * Tx aggregation requests.
7031 */
7032 return -EOPNOTSUPP;
7033 }
7034
7035 return -EINVAL;
7036 }
7037
7038 static void
7039 ath10k_mac_update_rx_channel(struct ath10k *ar,
7040 struct ieee80211_chanctx_conf *ctx,
7041 struct ieee80211_vif_chanctx_switch *vifs,
7042 int n_vifs)
7043 {
7044 struct cfg80211_chan_def *def = NULL;
7045
7046 /* Both locks are required because ar->rx_channel is modified. This
7047 * allows readers to hold either lock.
7048 */
7049 lockdep_assert_held(&ar->conf_mutex);
7050 lockdep_assert_held(&ar->data_lock);
7051
7052 WARN_ON(ctx && vifs);
7053 WARN_ON(vifs && n_vifs != 1);
7054
7055 /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
7056 * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
7057 * ppdu on Rx may reduce performance on low-end systems. It should be
7058 * possible to make tables/hashmaps to speed the lookup up (be vary of
7059 * cpu data cache lines though regarding sizes) but to keep the initial
7060 * implementation simple and less intrusive fallback to the slow lookup
7061 * only for multi-channel cases. Single-channel cases will remain to
7062 * use the old channel derival and thus performance should not be
7063 * affected much.
7064 */
7065 rcu_read_lock();
7066 if (!ctx && ath10k_mac_num_chanctxs(ar) == 1) {
7067 ieee80211_iter_chan_contexts_atomic(ar->hw,
7068 ath10k_mac_get_any_chandef_iter,
7069 &def);
7070
7071 if (vifs)
7072 def = &vifs[0].new_ctx->def;
7073
7074 ar->rx_channel = def->chan;
7075 } else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
7076 (ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
7077 /* During driver restart due to firmware assert, since mac80211
7078 * already has valid channel context for given radio, channel
7079 * context iteration return num_chanctx > 0. So fix rx_channel
7080 * when restart is in progress.
7081 */
7082 ar->rx_channel = ctx->def.chan;
7083 } else {
7084 ar->rx_channel = NULL;
7085 }
7086 rcu_read_unlock();
7087 }
7088
7089 static void
7090 ath10k_mac_update_vif_chan(struct ath10k *ar,
7091 struct ieee80211_vif_chanctx_switch *vifs,
7092 int n_vifs)
7093 {
7094 struct ath10k_vif *arvif;
7095 int ret;
7096 int i;
7097
7098 lockdep_assert_held(&ar->conf_mutex);
7099
7100 /* First stop monitor interface. Some FW versions crash if there's a
7101 * lone monitor interface.
7102 */
7103 if (ar->monitor_started)
7104 ath10k_monitor_stop(ar);
7105
7106 for (i = 0; i < n_vifs; i++) {
7107 arvif = ath10k_vif_to_arvif(vifs[i].vif);
7108
7109 ath10k_dbg(ar, ATH10K_DBG_MAC,
7110 "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d\n",
7111 arvif->vdev_id,
7112 vifs[i].old_ctx->def.chan->center_freq,
7113 vifs[i].new_ctx->def.chan->center_freq,
7114 vifs[i].old_ctx->def.width,
7115 vifs[i].new_ctx->def.width);
7116
7117 if (WARN_ON(!arvif->is_started))
7118 continue;
7119
7120 if (WARN_ON(!arvif->is_up))
7121 continue;
7122
7123 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
7124 if (ret) {
7125 ath10k_warn(ar, "failed to down vdev %d: %d\n",
7126 arvif->vdev_id, ret);
7127 continue;
7128 }
7129 }
7130
7131 /* All relevant vdevs are downed and associated channel resources
7132 * should be available for the channel switch now.
7133 */
7134
7135 spin_lock_bh(&ar->data_lock);
7136 ath10k_mac_update_rx_channel(ar, NULL, vifs, n_vifs);
7137 spin_unlock_bh(&ar->data_lock);
7138
7139 for (i = 0; i < n_vifs; i++) {
7140 arvif = ath10k_vif_to_arvif(vifs[i].vif);
7141
7142 if (WARN_ON(!arvif->is_started))
7143 continue;
7144
7145 if (WARN_ON(!arvif->is_up))
7146 continue;
7147
7148 ret = ath10k_mac_setup_bcn_tmpl(arvif);
7149 if (ret)
7150 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
7151 ret);
7152
7153 ret = ath10k_mac_setup_prb_tmpl(arvif);
7154 if (ret)
7155 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
7156 ret);
7157
7158 ret = ath10k_vdev_restart(arvif, &vifs[i].new_ctx->def);
7159 if (ret) {
7160 ath10k_warn(ar, "failed to restart vdev %d: %d\n",
7161 arvif->vdev_id, ret);
7162 continue;
7163 }
7164
7165 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
7166 arvif->bssid);
7167 if (ret) {
7168 ath10k_warn(ar, "failed to bring vdev up %d: %d\n",
7169 arvif->vdev_id, ret);
7170 continue;
7171 }
7172 }
7173
7174 ath10k_monitor_recalc(ar);
7175 }
7176
7177 static int
7178 ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
7179 struct ieee80211_chanctx_conf *ctx)
7180 {
7181 struct ath10k *ar = hw->priv;
7182
7183 ath10k_dbg(ar, ATH10K_DBG_MAC,
7184 "mac chanctx add freq %hu width %d ptr %pK\n",
7185 ctx->def.chan->center_freq, ctx->def.width, ctx);
7186
7187 mutex_lock(&ar->conf_mutex);
7188
7189 spin_lock_bh(&ar->data_lock);
7190 ath10k_mac_update_rx_channel(ar, ctx, NULL, 0);
7191 spin_unlock_bh(&ar->data_lock);
7192
7193 ath10k_recalc_radar_detection(ar);
7194 ath10k_monitor_recalc(ar);
7195
7196 mutex_unlock(&ar->conf_mutex);
7197
7198 return 0;
7199 }
7200
7201 static void
7202 ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
7203 struct ieee80211_chanctx_conf *ctx)
7204 {
7205 struct ath10k *ar = hw->priv;
7206
7207 ath10k_dbg(ar, ATH10K_DBG_MAC,
7208 "mac chanctx remove freq %hu width %d ptr %pK\n",
7209 ctx->def.chan->center_freq, ctx->def.width, ctx);
7210
7211 mutex_lock(&ar->conf_mutex);
7212
7213 spin_lock_bh(&ar->data_lock);
7214 ath10k_mac_update_rx_channel(ar, NULL, NULL, 0);
7215 spin_unlock_bh(&ar->data_lock);
7216
7217 ath10k_recalc_radar_detection(ar);
7218 ath10k_monitor_recalc(ar);
7219
7220 mutex_unlock(&ar->conf_mutex);
7221 }
7222
7223 struct ath10k_mac_change_chanctx_arg {
7224 struct ieee80211_chanctx_conf *ctx;
7225 struct ieee80211_vif_chanctx_switch *vifs;
7226 int n_vifs;
7227 int next_vif;
7228 };
7229
7230 static void
7231 ath10k_mac_change_chanctx_cnt_iter(void *data, u8 *mac,
7232 struct ieee80211_vif *vif)
7233 {
7234 struct ath10k_mac_change_chanctx_arg *arg = data;
7235
7236 if (rcu_access_pointer(vif->chanctx_conf) != arg->ctx)
7237 return;
7238
7239 arg->n_vifs++;
7240 }
7241
7242 static void
7243 ath10k_mac_change_chanctx_fill_iter(void *data, u8 *mac,
7244 struct ieee80211_vif *vif)
7245 {
7246 struct ath10k_mac_change_chanctx_arg *arg = data;
7247 struct ieee80211_chanctx_conf *ctx;
7248
7249 ctx = rcu_access_pointer(vif->chanctx_conf);
7250 if (ctx != arg->ctx)
7251 return;
7252
7253 if (WARN_ON(arg->next_vif == arg->n_vifs))
7254 return;
7255
7256 arg->vifs[arg->next_vif].vif = vif;
7257 arg->vifs[arg->next_vif].old_ctx = ctx;
7258 arg->vifs[arg->next_vif].new_ctx = ctx;
7259 arg->next_vif++;
7260 }
7261
7262 static void
7263 ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
7264 struct ieee80211_chanctx_conf *ctx,
7265 u32 changed)
7266 {
7267 struct ath10k *ar = hw->priv;
7268 struct ath10k_mac_change_chanctx_arg arg = { .ctx = ctx };
7269
7270 mutex_lock(&ar->conf_mutex);
7271
7272 ath10k_dbg(ar, ATH10K_DBG_MAC,
7273 "mac chanctx change freq %hu width %d ptr %pK changed %x\n",
7274 ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
7275
7276 /* This shouldn't really happen because channel switching should use
7277 * switch_vif_chanctx().
7278 */
7279 if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
7280 goto unlock;
7281
7282 if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) {
7283 ieee80211_iterate_active_interfaces_atomic(
7284 hw,
7285 IEEE80211_IFACE_ITER_NORMAL,
7286 ath10k_mac_change_chanctx_cnt_iter,
7287 &arg);
7288 if (arg.n_vifs == 0)
7289 goto radar;
7290
7291 arg.vifs = kcalloc(arg.n_vifs, sizeof(arg.vifs[0]),
7292 GFP_KERNEL);
7293 if (!arg.vifs)
7294 goto radar;
7295
7296 ieee80211_iterate_active_interfaces_atomic(
7297 hw,
7298 IEEE80211_IFACE_ITER_NORMAL,
7299 ath10k_mac_change_chanctx_fill_iter,
7300 &arg);
7301 ath10k_mac_update_vif_chan(ar, arg.vifs, arg.n_vifs);
7302 kfree(arg.vifs);
7303 }
7304
7305 radar:
7306 ath10k_recalc_radar_detection(ar);
7307
7308 /* FIXME: How to configure Rx chains properly? */
7309
7310 /* No other actions are actually necessary. Firmware maintains channel
7311 * definitions per vdev internally and there's no host-side channel
7312 * context abstraction to configure, e.g. channel width.
7313 */
7314
7315 unlock:
7316 mutex_unlock(&ar->conf_mutex);
7317 }
7318
7319 static int
7320 ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
7321 struct ieee80211_vif *vif,
7322 struct ieee80211_chanctx_conf *ctx)
7323 {
7324 struct ath10k *ar = hw->priv;
7325 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7326 int ret;
7327
7328 mutex_lock(&ar->conf_mutex);
7329
7330 ath10k_dbg(ar, ATH10K_DBG_MAC,
7331 "mac chanctx assign ptr %pK vdev_id %i\n",
7332 ctx, arvif->vdev_id);
7333
7334 if (WARN_ON(arvif->is_started)) {
7335 mutex_unlock(&ar->conf_mutex);
7336 return -EBUSY;
7337 }
7338
7339 ret = ath10k_vdev_start(arvif, &ctx->def);
7340 if (ret) {
7341 ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
7342 arvif->vdev_id, vif->addr,
7343 ctx->def.chan->center_freq, ret);
7344 goto err;
7345 }
7346
7347 arvif->is_started = true;
7348
7349 ret = ath10k_mac_vif_setup_ps(arvif);
7350 if (ret) {
7351 ath10k_warn(ar, "failed to update vdev %i ps: %d\n",
7352 arvif->vdev_id, ret);
7353 goto err_stop;
7354 }
7355
7356 if (vif->type == NL80211_IFTYPE_MONITOR) {
7357 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
7358 if (ret) {
7359 ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
7360 arvif->vdev_id, ret);
7361 goto err_stop;
7362 }
7363
7364 arvif->is_up = true;
7365 }
7366
7367 mutex_unlock(&ar->conf_mutex);
7368 return 0;
7369
7370 err_stop:
7371 ath10k_vdev_stop(arvif);
7372 arvif->is_started = false;
7373 ath10k_mac_vif_setup_ps(arvif);
7374
7375 err:
7376 mutex_unlock(&ar->conf_mutex);
7377 return ret;
7378 }
7379
7380 static void
7381 ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
7382 struct ieee80211_vif *vif,
7383 struct ieee80211_chanctx_conf *ctx)
7384 {
7385 struct ath10k *ar = hw->priv;
7386 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7387 int ret;
7388
7389 mutex_lock(&ar->conf_mutex);
7390
7391 ath10k_dbg(ar, ATH10K_DBG_MAC,
7392 "mac chanctx unassign ptr %pK vdev_id %i\n",
7393 ctx, arvif->vdev_id);
7394
7395 WARN_ON(!arvif->is_started);
7396
7397 if (vif->type == NL80211_IFTYPE_MONITOR) {
7398 WARN_ON(!arvif->is_up);
7399
7400 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
7401 if (ret)
7402 ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
7403 arvif->vdev_id, ret);
7404
7405 arvif->is_up = false;
7406 }
7407
7408 ret = ath10k_vdev_stop(arvif);
7409 if (ret)
7410 ath10k_warn(ar, "failed to stop vdev %i: %d\n",
7411 arvif->vdev_id, ret);
7412
7413 arvif->is_started = false;
7414
7415 mutex_unlock(&ar->conf_mutex);
7416 }
7417
7418 static int
7419 ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
7420 struct ieee80211_vif_chanctx_switch *vifs,
7421 int n_vifs,
7422 enum ieee80211_chanctx_switch_mode mode)
7423 {
7424 struct ath10k *ar = hw->priv;
7425
7426 mutex_lock(&ar->conf_mutex);
7427
7428 ath10k_dbg(ar, ATH10K_DBG_MAC,
7429 "mac chanctx switch n_vifs %d mode %d\n",
7430 n_vifs, mode);
7431 ath10k_mac_update_vif_chan(ar, vifs, n_vifs);
7432
7433 mutex_unlock(&ar->conf_mutex);
7434 return 0;
7435 }
7436
7437 static const struct ieee80211_ops ath10k_ops = {
7438 .tx = ath10k_mac_op_tx,
7439 .wake_tx_queue = ath10k_mac_op_wake_tx_queue,
7440 .start = ath10k_start,
7441 .stop = ath10k_stop,
7442 .config = ath10k_config,
7443 .add_interface = ath10k_add_interface,
7444 .remove_interface = ath10k_remove_interface,
7445 .configure_filter = ath10k_configure_filter,
7446 .bss_info_changed = ath10k_bss_info_changed,
7447 .set_coverage_class = ath10k_mac_op_set_coverage_class,
7448 .hw_scan = ath10k_hw_scan,
7449 .cancel_hw_scan = ath10k_cancel_hw_scan,
7450 .set_key = ath10k_set_key,
7451 .set_default_unicast_key = ath10k_set_default_unicast_key,
7452 .sta_state = ath10k_sta_state,
7453 .conf_tx = ath10k_conf_tx,
7454 .remain_on_channel = ath10k_remain_on_channel,
7455 .cancel_remain_on_channel = ath10k_cancel_remain_on_channel,
7456 .set_rts_threshold = ath10k_set_rts_threshold,
7457 .set_frag_threshold = ath10k_mac_op_set_frag_threshold,
7458 .flush = ath10k_flush,
7459 .tx_last_beacon = ath10k_tx_last_beacon,
7460 .set_antenna = ath10k_set_antenna,
7461 .get_antenna = ath10k_get_antenna,
7462 .reconfig_complete = ath10k_reconfig_complete,
7463 .get_survey = ath10k_get_survey,
7464 .set_bitrate_mask = ath10k_mac_op_set_bitrate_mask,
7465 .sta_rc_update = ath10k_sta_rc_update,
7466 .offset_tsf = ath10k_offset_tsf,
7467 .ampdu_action = ath10k_ampdu_action,
7468 .get_et_sset_count = ath10k_debug_get_et_sset_count,
7469 .get_et_stats = ath10k_debug_get_et_stats,
7470 .get_et_strings = ath10k_debug_get_et_strings,
7471 .add_chanctx = ath10k_mac_op_add_chanctx,
7472 .remove_chanctx = ath10k_mac_op_remove_chanctx,
7473 .change_chanctx = ath10k_mac_op_change_chanctx,
7474 .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
7475 .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
7476 .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
7477
7478 CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
7479
7480 #ifdef CONFIG_PM
7481 .suspend = ath10k_wow_op_suspend,
7482 .resume = ath10k_wow_op_resume,
7483 #endif
7484 #ifdef CONFIG_MAC80211_DEBUGFS
7485 .sta_add_debugfs = ath10k_sta_add_debugfs,
7486 .sta_statistics = ath10k_sta_statistics,
7487 #endif
7488 };
7489
7490 #define CHAN2G(_channel, _freq, _flags) { \
7491 .band = NL80211_BAND_2GHZ, \
7492 .hw_value = (_channel), \
7493 .center_freq = (_freq), \
7494 .flags = (_flags), \
7495 .max_antenna_gain = 0, \
7496 .max_power = 30, \
7497 }
7498
7499 #define CHAN5G(_channel, _freq, _flags) { \
7500 .band = NL80211_BAND_5GHZ, \
7501 .hw_value = (_channel), \
7502 .center_freq = (_freq), \
7503 .flags = (_flags), \
7504 .max_antenna_gain = 0, \
7505 .max_power = 30, \
7506 }
7507
7508 static const struct ieee80211_channel ath10k_2ghz_channels[] = {
7509 CHAN2G(1, 2412, 0),
7510 CHAN2G(2, 2417, 0),
7511 CHAN2G(3, 2422, 0),
7512 CHAN2G(4, 2427, 0),
7513 CHAN2G(5, 2432, 0),
7514 CHAN2G(6, 2437, 0),
7515 CHAN2G(7, 2442, 0),
7516 CHAN2G(8, 2447, 0),
7517 CHAN2G(9, 2452, 0),
7518 CHAN2G(10, 2457, 0),
7519 CHAN2G(11, 2462, 0),
7520 CHAN2G(12, 2467, 0),
7521 CHAN2G(13, 2472, 0),
7522 CHAN2G(14, 2484, 0),
7523 };
7524
7525 static const struct ieee80211_channel ath10k_5ghz_channels[] = {
7526 CHAN5G(36, 5180, 0),
7527 CHAN5G(40, 5200, 0),
7528 CHAN5G(44, 5220, 0),
7529 CHAN5G(48, 5240, 0),
7530 CHAN5G(52, 5260, 0),
7531 CHAN5G(56, 5280, 0),
7532 CHAN5G(60, 5300, 0),
7533 CHAN5G(64, 5320, 0),
7534 CHAN5G(100, 5500, 0),
7535 CHAN5G(104, 5520, 0),
7536 CHAN5G(108, 5540, 0),
7537 CHAN5G(112, 5560, 0),
7538 CHAN5G(116, 5580, 0),
7539 CHAN5G(120, 5600, 0),
7540 CHAN5G(124, 5620, 0),
7541 CHAN5G(128, 5640, 0),
7542 CHAN5G(132, 5660, 0),
7543 CHAN5G(136, 5680, 0),
7544 CHAN5G(140, 5700, 0),
7545 CHAN5G(144, 5720, 0),
7546 CHAN5G(149, 5745, 0),
7547 CHAN5G(153, 5765, 0),
7548 CHAN5G(157, 5785, 0),
7549 CHAN5G(161, 5805, 0),
7550 CHAN5G(165, 5825, 0),
7551 };
7552
7553 struct ath10k *ath10k_mac_create(size_t priv_size)
7554 {
7555 struct ieee80211_hw *hw;
7556 struct ieee80211_ops *ops;
7557 struct ath10k *ar;
7558
7559 ops = kmemdup(&ath10k_ops, sizeof(ath10k_ops), GFP_KERNEL);
7560 if (!ops)
7561 return NULL;
7562
7563 hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, ops);
7564 if (!hw) {
7565 kfree(ops);
7566 return NULL;
7567 }
7568
7569 ar = hw->priv;
7570 ar->hw = hw;
7571 ar->ops = ops;
7572
7573 return ar;
7574 }
7575
7576 void ath10k_mac_destroy(struct ath10k *ar)
7577 {
7578 struct ieee80211_ops *ops = ar->ops;
7579
7580 ieee80211_free_hw(ar->hw);
7581 kfree(ops);
7582 }
7583
7584 static const struct ieee80211_iface_limit ath10k_if_limits[] = {
7585 {
7586 .max = 8,
7587 .types = BIT(NL80211_IFTYPE_STATION)
7588 | BIT(NL80211_IFTYPE_P2P_CLIENT)
7589 },
7590 {
7591 .max = 3,
7592 .types = BIT(NL80211_IFTYPE_P2P_GO)
7593 },
7594 {
7595 .max = 1,
7596 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
7597 },
7598 {
7599 .max = 7,
7600 .types = BIT(NL80211_IFTYPE_AP)
7601 #ifdef CONFIG_MAC80211_MESH
7602 | BIT(NL80211_IFTYPE_MESH_POINT)
7603 #endif
7604 },
7605 };
7606
7607 static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
7608 {
7609 .max = 8,
7610 .types = BIT(NL80211_IFTYPE_AP)
7611 #ifdef CONFIG_MAC80211_MESH
7612 | BIT(NL80211_IFTYPE_MESH_POINT)
7613 #endif
7614 },
7615 {
7616 .max = 1,
7617 .types = BIT(NL80211_IFTYPE_STATION)
7618 },
7619 };
7620
7621 static const struct ieee80211_iface_combination ath10k_if_comb[] = {
7622 {
7623 .limits = ath10k_if_limits,
7624 .n_limits = ARRAY_SIZE(ath10k_if_limits),
7625 .max_interfaces = 8,
7626 .num_different_channels = 1,
7627 .beacon_int_infra_match = true,
7628 },
7629 };
7630
7631 static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
7632 {
7633 .limits = ath10k_10x_if_limits,
7634 .n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
7635 .max_interfaces = 8,
7636 .num_different_channels = 1,
7637 .beacon_int_infra_match = true,
7638 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
7639 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
7640 BIT(NL80211_CHAN_WIDTH_20) |
7641 BIT(NL80211_CHAN_WIDTH_40) |
7642 BIT(NL80211_CHAN_WIDTH_80),
7643 #endif
7644 },
7645 };
7646
7647 static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
7648 {
7649 .max = 2,
7650 .types = BIT(NL80211_IFTYPE_STATION),
7651 },
7652 {
7653 .max = 2,
7654 .types = BIT(NL80211_IFTYPE_AP) |
7655 #ifdef CONFIG_MAC80211_MESH
7656 BIT(NL80211_IFTYPE_MESH_POINT) |
7657 #endif
7658 BIT(NL80211_IFTYPE_P2P_CLIENT) |
7659 BIT(NL80211_IFTYPE_P2P_GO),
7660 },
7661 {
7662 .max = 1,
7663 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
7664 },
7665 };
7666
7667 static const struct ieee80211_iface_limit ath10k_tlv_qcs_if_limit[] = {
7668 {
7669 .max = 2,
7670 .types = BIT(NL80211_IFTYPE_STATION),
7671 },
7672 {
7673 .max = 2,
7674 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
7675 },
7676 {
7677 .max = 1,
7678 .types = BIT(NL80211_IFTYPE_AP) |
7679 #ifdef CONFIG_MAC80211_MESH
7680 BIT(NL80211_IFTYPE_MESH_POINT) |
7681 #endif
7682 BIT(NL80211_IFTYPE_P2P_GO),
7683 },
7684 {
7685 .max = 1,
7686 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
7687 },
7688 };
7689
7690 static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
7691 {
7692 .max = 1,
7693 .types = BIT(NL80211_IFTYPE_STATION),
7694 },
7695 {
7696 .max = 1,
7697 .types = BIT(NL80211_IFTYPE_ADHOC),
7698 },
7699 };
7700
7701 /* FIXME: This is not thouroughly tested. These combinations may over- or
7702 * underestimate hw/fw capabilities.
7703 */
7704 static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
7705 {
7706 .limits = ath10k_tlv_if_limit,
7707 .num_different_channels = 1,
7708 .max_interfaces = 4,
7709 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
7710 },
7711 {
7712 .limits = ath10k_tlv_if_limit_ibss,
7713 .num_different_channels = 1,
7714 .max_interfaces = 2,
7715 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
7716 },
7717 };
7718
7719 static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
7720 {
7721 .limits = ath10k_tlv_if_limit,
7722 .num_different_channels = 1,
7723 .max_interfaces = 4,
7724 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
7725 },
7726 {
7727 .limits = ath10k_tlv_qcs_if_limit,
7728 .num_different_channels = 2,
7729 .max_interfaces = 4,
7730 .n_limits = ARRAY_SIZE(ath10k_tlv_qcs_if_limit),
7731 },
7732 {
7733 .limits = ath10k_tlv_if_limit_ibss,
7734 .num_different_channels = 1,
7735 .max_interfaces = 2,
7736 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
7737 },
7738 };
7739
7740 static const struct ieee80211_iface_limit ath10k_10_4_if_limits[] = {
7741 {
7742 .max = 1,
7743 .types = BIT(NL80211_IFTYPE_STATION),
7744 },
7745 {
7746 .max = 16,
7747 .types = BIT(NL80211_IFTYPE_AP)
7748 #ifdef CONFIG_MAC80211_MESH
7749 | BIT(NL80211_IFTYPE_MESH_POINT)
7750 #endif
7751 },
7752 };
7753
7754 static const struct ieee80211_iface_combination ath10k_10_4_if_comb[] = {
7755 {
7756 .limits = ath10k_10_4_if_limits,
7757 .n_limits = ARRAY_SIZE(ath10k_10_4_if_limits),
7758 .max_interfaces = 16,
7759 .num_different_channels = 1,
7760 .beacon_int_infra_match = true,
7761 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
7762 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
7763 BIT(NL80211_CHAN_WIDTH_20) |
7764 BIT(NL80211_CHAN_WIDTH_40) |
7765 BIT(NL80211_CHAN_WIDTH_80),
7766 #endif
7767 },
7768 };
7769
7770 static void ath10k_get_arvif_iter(void *data, u8 *mac,
7771 struct ieee80211_vif *vif)
7772 {
7773 struct ath10k_vif_iter *arvif_iter = data;
7774 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
7775
7776 if (arvif->vdev_id == arvif_iter->vdev_id)
7777 arvif_iter->arvif = arvif;
7778 }
7779
7780 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
7781 {
7782 struct ath10k_vif_iter arvif_iter;
7783 u32 flags;
7784
7785 memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
7786 arvif_iter.vdev_id = vdev_id;
7787
7788 flags = IEEE80211_IFACE_ITER_RESUME_ALL;
7789 ieee80211_iterate_active_interfaces_atomic(ar->hw,
7790 flags,
7791 ath10k_get_arvif_iter,
7792 &arvif_iter);
7793 if (!arvif_iter.arvif) {
7794 ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
7795 return NULL;
7796 }
7797
7798 return arvif_iter.arvif;
7799 }
7800
7801 #define WRD_METHOD "WRDD"
7802 #define WRDD_WIFI (0x07)
7803
7804 static u32 ath10k_mac_wrdd_get_mcc(struct ath10k *ar, union acpi_object *wrdd)
7805 {
7806 union acpi_object *mcc_pkg;
7807 union acpi_object *domain_type;
7808 union acpi_object *mcc_value;
7809 u32 i;
7810
7811 if (wrdd->type != ACPI_TYPE_PACKAGE ||
7812 wrdd->package.count < 2 ||
7813 wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
7814 wrdd->package.elements[0].integer.value != 0) {
7815 ath10k_warn(ar, "ignoring malformed/unsupported wrdd structure\n");
7816 return 0;
7817 }
7818
7819 for (i = 1; i < wrdd->package.count; ++i) {
7820 mcc_pkg = &wrdd->package.elements[i];
7821
7822 if (mcc_pkg->type != ACPI_TYPE_PACKAGE)
7823 continue;
7824 if (mcc_pkg->package.count < 2)
7825 continue;
7826 if (mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
7827 mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
7828 continue;
7829
7830 domain_type = &mcc_pkg->package.elements[0];
7831 if (domain_type->integer.value != WRDD_WIFI)
7832 continue;
7833
7834 mcc_value = &mcc_pkg->package.elements[1];
7835 return mcc_value->integer.value;
7836 }
7837 return 0;
7838 }
7839
7840 static int ath10k_mac_get_wrdd_regulatory(struct ath10k *ar, u16 *rd)
7841 {
7842 struct pci_dev __maybe_unused *pdev = to_pci_dev(ar->dev);
7843 acpi_handle root_handle;
7844 acpi_handle handle;
7845 struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
7846 acpi_status status;
7847 u32 alpha2_code;
7848 char alpha2[3];
7849
7850 root_handle = ACPI_HANDLE(&pdev->dev);
7851 if (!root_handle)
7852 return -EOPNOTSUPP;
7853
7854 status = acpi_get_handle(root_handle, (acpi_string)WRD_METHOD, &handle);
7855 if (ACPI_FAILURE(status)) {
7856 ath10k_dbg(ar, ATH10K_DBG_BOOT,
7857 "failed to get wrd method %d\n", status);
7858 return -EIO;
7859 }
7860
7861 status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
7862 if (ACPI_FAILURE(status)) {
7863 ath10k_dbg(ar, ATH10K_DBG_BOOT,
7864 "failed to call wrdc %d\n", status);
7865 return -EIO;
7866 }
7867
7868 alpha2_code = ath10k_mac_wrdd_get_mcc(ar, wrdd.pointer);
7869 kfree(wrdd.pointer);
7870 if (!alpha2_code)
7871 return -EIO;
7872
7873 alpha2[0] = (alpha2_code >> 8) & 0xff;
7874 alpha2[1] = (alpha2_code >> 0) & 0xff;
7875 alpha2[2] = '\0';
7876
7877 ath10k_dbg(ar, ATH10K_DBG_BOOT,
7878 "regulatory hint from WRDD (alpha2-code): %s\n", alpha2);
7879
7880 *rd = ath_regd_find_country_by_name(alpha2);
7881 if (*rd == 0xffff)
7882 return -EIO;
7883
7884 *rd |= COUNTRY_ERD_FLAG;
7885 return 0;
7886 }
7887
7888 static int ath10k_mac_init_rd(struct ath10k *ar)
7889 {
7890 int ret;
7891 u16 rd;
7892
7893 ret = ath10k_mac_get_wrdd_regulatory(ar, &rd);
7894 if (ret) {
7895 ath10k_dbg(ar, ATH10K_DBG_BOOT,
7896 "fallback to eeprom programmed regulatory settings\n");
7897 rd = ar->hw_eeprom_rd;
7898 }
7899
7900 ar->ath_common.regulatory.current_rd = rd;
7901 return 0;
7902 }
7903
7904 int ath10k_mac_register(struct ath10k *ar)
7905 {
7906 static const u32 cipher_suites[] = {
7907 WLAN_CIPHER_SUITE_WEP40,
7908 WLAN_CIPHER_SUITE_WEP104,
7909 WLAN_CIPHER_SUITE_TKIP,
7910 WLAN_CIPHER_SUITE_CCMP,
7911 WLAN_CIPHER_SUITE_AES_CMAC,
7912 };
7913 struct ieee80211_supported_band *band;
7914 void *channels;
7915 int ret;
7916
7917 SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
7918
7919 SET_IEEE80211_DEV(ar->hw, ar->dev);
7920
7921 BUILD_BUG_ON((ARRAY_SIZE(ath10k_2ghz_channels) +
7922 ARRAY_SIZE(ath10k_5ghz_channels)) !=
7923 ATH10K_NUM_CHANS);
7924
7925 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
7926 channels = kmemdup(ath10k_2ghz_channels,
7927 sizeof(ath10k_2ghz_channels),
7928 GFP_KERNEL);
7929 if (!channels) {
7930 ret = -ENOMEM;
7931 goto err_free;
7932 }
7933
7934 band = &ar->mac.sbands[NL80211_BAND_2GHZ];
7935 band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
7936 band->channels = channels;
7937
7938 if (ar->hw_params.cck_rate_map_rev2) {
7939 band->n_bitrates = ath10k_g_rates_rev2_size;
7940 band->bitrates = ath10k_g_rates_rev2;
7941 } else {
7942 band->n_bitrates = ath10k_g_rates_size;
7943 band->bitrates = ath10k_g_rates;
7944 }
7945
7946 ar->hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
7947 }
7948
7949 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
7950 channels = kmemdup(ath10k_5ghz_channels,
7951 sizeof(ath10k_5ghz_channels),
7952 GFP_KERNEL);
7953 if (!channels) {
7954 ret = -ENOMEM;
7955 goto err_free;
7956 }
7957
7958 band = &ar->mac.sbands[NL80211_BAND_5GHZ];
7959 band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
7960 band->channels = channels;
7961 band->n_bitrates = ath10k_a_rates_size;
7962 band->bitrates = ath10k_a_rates;
7963 ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
7964 }
7965
7966 ath10k_mac_setup_ht_vht_cap(ar);
7967
7968 ar->hw->wiphy->interface_modes =
7969 BIT(NL80211_IFTYPE_STATION) |
7970 BIT(NL80211_IFTYPE_AP) |
7971 BIT(NL80211_IFTYPE_MESH_POINT);
7972
7973 ar->hw->wiphy->available_antennas_rx = ar->cfg_rx_chainmask;
7974 ar->hw->wiphy->available_antennas_tx = ar->cfg_tx_chainmask;
7975
7976 if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->normal_mode_fw.fw_file.fw_features))
7977 ar->hw->wiphy->interface_modes |=
7978 BIT(NL80211_IFTYPE_P2P_DEVICE) |
7979 BIT(NL80211_IFTYPE_P2P_CLIENT) |
7980 BIT(NL80211_IFTYPE_P2P_GO);
7981
7982 ieee80211_hw_set(ar->hw, SIGNAL_DBM);
7983 ieee80211_hw_set(ar->hw, SUPPORTS_PS);
7984 ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS);
7985 ieee80211_hw_set(ar->hw, MFP_CAPABLE);
7986 ieee80211_hw_set(ar->hw, REPORTS_TX_ACK_STATUS);
7987 ieee80211_hw_set(ar->hw, HAS_RATE_CONTROL);
7988 ieee80211_hw_set(ar->hw, AP_LINK_PS);
7989 ieee80211_hw_set(ar->hw, SPECTRUM_MGMT);
7990 ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT);
7991 ieee80211_hw_set(ar->hw, CONNECTION_MONITOR);
7992 ieee80211_hw_set(ar->hw, SUPPORTS_PER_STA_GTK);
7993 ieee80211_hw_set(ar->hw, WANT_MONITOR_VIF);
7994 ieee80211_hw_set(ar->hw, CHANCTX_STA_CSA);
7995 ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
7996 ieee80211_hw_set(ar->hw, REPORTS_LOW_ACK);
7997
7998 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
7999 ieee80211_hw_set(ar->hw, SW_CRYPTO_CONTROL);
8000
8001 ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
8002 ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8003
8004 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
8005 ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
8006
8007 if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
8008 ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
8009 ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
8010 }
8011
8012 ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
8013 ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
8014
8015 ar->hw->vif_data_size = sizeof(struct ath10k_vif);
8016 ar->hw->sta_data_size = sizeof(struct ath10k_sta);
8017 ar->hw->txq_data_size = sizeof(struct ath10k_txq);
8018
8019 ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
8020
8021 if (test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)) {
8022 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
8023
8024 /* Firmware delivers WPS/P2P Probe Requests frames to driver so
8025 * that userspace (e.g. wpa_supplicant/hostapd) can generate
8026 * correct Probe Responses. This is more of a hack advert..
8027 */
8028 ar->hw->wiphy->probe_resp_offload |=
8029 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
8030 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
8031 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
8032 }
8033
8034 if (test_bit(WMI_SERVICE_TDLS, ar->wmi.svc_map))
8035 ar->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
8036
8037 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
8038 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
8039 ar->hw->wiphy->max_remain_on_channel_duration = 5000;
8040
8041 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
8042 ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
8043 NL80211_FEATURE_AP_SCAN;
8044
8045 ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;
8046
8047 ret = ath10k_wow_init(ar);
8048 if (ret) {
8049 ath10k_warn(ar, "failed to init wow: %d\n", ret);
8050 goto err_free;
8051 }
8052
8053 wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
8054
8055 /*
8056 * on LL hardware queues are managed entirely by the FW
8057 * so we only advertise to mac we can do the queues thing
8058 */
8059 ar->hw->queues = IEEE80211_MAX_QUEUES;
8060
8061 /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
8062 * something that vdev_ids can't reach so that we don't stop the queue
8063 * accidentally.
8064 */
8065 ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
8066
8067 switch (ar->running_fw->fw_file.wmi_op_version) {
8068 case ATH10K_FW_WMI_OP_VERSION_MAIN:
8069 ar->hw->wiphy->iface_combinations = ath10k_if_comb;
8070 ar->hw->wiphy->n_iface_combinations =
8071 ARRAY_SIZE(ath10k_if_comb);
8072 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
8073 break;
8074 case ATH10K_FW_WMI_OP_VERSION_TLV:
8075 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
8076 ar->hw->wiphy->iface_combinations =
8077 ath10k_tlv_qcs_if_comb;
8078 ar->hw->wiphy->n_iface_combinations =
8079 ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
8080 } else {
8081 ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
8082 ar->hw->wiphy->n_iface_combinations =
8083 ARRAY_SIZE(ath10k_tlv_if_comb);
8084 }
8085 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
8086 break;
8087 case ATH10K_FW_WMI_OP_VERSION_10_1:
8088 case ATH10K_FW_WMI_OP_VERSION_10_2:
8089 case ATH10K_FW_WMI_OP_VERSION_10_2_4:
8090 ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
8091 ar->hw->wiphy->n_iface_combinations =
8092 ARRAY_SIZE(ath10k_10x_if_comb);
8093 break;
8094 case ATH10K_FW_WMI_OP_VERSION_10_4:
8095 ar->hw->wiphy->iface_combinations = ath10k_10_4_if_comb;
8096 ar->hw->wiphy->n_iface_combinations =
8097 ARRAY_SIZE(ath10k_10_4_if_comb);
8098 break;
8099 case ATH10K_FW_WMI_OP_VERSION_UNSET:
8100 case ATH10K_FW_WMI_OP_VERSION_MAX:
8101 WARN_ON(1);
8102 ret = -EINVAL;
8103 goto err_free;
8104 }
8105
8106 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
8107 ar->hw->netdev_features = NETIF_F_HW_CSUM;
8108
8109 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
8110 /* Init ath dfs pattern detector */
8111 ar->ath_common.debug_mask = ATH_DBG_DFS;
8112 ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
8113 NL80211_DFS_UNSET);
8114
8115 if (!ar->dfs_detector)
8116 ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
8117 }
8118
8119 /* Current wake_tx_queue implementation imposes a significant
8120 * performance penalty in some setups. The tx scheduling code needs
8121 * more work anyway so disable the wake_tx_queue unless firmware
8122 * supports the pull-push mechanism.
8123 */
8124 if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
8125 ar->running_fw->fw_file.fw_features))
8126 ar->ops->wake_tx_queue = NULL;
8127
8128 ret = ath10k_mac_init_rd(ar);
8129 if (ret) {
8130 ath10k_err(ar, "failed to derive regdom: %d\n", ret);
8131 goto err_dfs_detector_exit;
8132 }
8133
8134 /* Disable set_coverage_class for chipsets that do not support it. */
8135 if (!ar->hw_params.hw_ops->set_coverage_class)
8136 ar->ops->set_coverage_class = NULL;
8137
8138 ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
8139 ath10k_reg_notifier);
8140 if (ret) {
8141 ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
8142 goto err_dfs_detector_exit;
8143 }
8144
8145 ar->hw->wiphy->cipher_suites = cipher_suites;
8146 ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
8147
8148 ret = ieee80211_register_hw(ar->hw);
8149 if (ret) {
8150 ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
8151 goto err_dfs_detector_exit;
8152 }
8153
8154 if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
8155 ret = regulatory_hint(ar->hw->wiphy,
8156 ar->ath_common.regulatory.alpha2);
8157 if (ret)
8158 goto err_unregister;
8159 }
8160
8161 return 0;
8162
8163 err_unregister:
8164 ieee80211_unregister_hw(ar->hw);
8165
8166 err_dfs_detector_exit:
8167 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
8168 ar->dfs_detector->exit(ar->dfs_detector);
8169
8170 err_free:
8171 kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
8172 kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
8173
8174 SET_IEEE80211_DEV(ar->hw, NULL);
8175 return ret;
8176 }
8177
8178 void ath10k_mac_unregister(struct ath10k *ar)
8179 {
8180 ieee80211_unregister_hw(ar->hw);
8181
8182 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
8183 ar->dfs_detector->exit(ar->dfs_detector);
8184
8185 kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
8186 kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
8187
8188 SET_IEEE80211_DEV(ar->hw, NULL);
8189 }
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