1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (c) 2005-2011 Atheros Communications Inc.
4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
5 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
6 */
7
8 #include "mac.h"
9
10 #include <net/cfg80211.h>
11 #include <net/mac80211.h>
12 #include <linux/etherdevice.h>
13 #include <linux/acpi.h>
14 #include <linux/of.h>
15 #include <linux/bitfield.h>
16
17 #include "hif.h"
18 #include "core.h"
19 #include "debug.h"
20 #include "wmi.h"
21 #include "htt.h"
22 #include "txrx.h"
23 #include "testmode.h"
24 #include "wmi-tlv.h"
25 #include "wmi-ops.h"
26 #include "wow.h"
27
28 /*********/
29 /* Rates */
30 /*********/
31
32 static struct ieee80211_rate ath10k_rates[] = {
33 { .bitrate = 10,
34 .hw_value = ATH10K_HW_RATE_CCK_LP_1M },
35 { .bitrate = 20,
36 .hw_value = ATH10K_HW_RATE_CCK_LP_2M,
37 .hw_value_short = ATH10K_HW_RATE_CCK_SP_2M,
38 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
39 { .bitrate = 55,
40 .hw_value = ATH10K_HW_RATE_CCK_LP_5_5M,
41 .hw_value_short = ATH10K_HW_RATE_CCK_SP_5_5M,
42 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
43 { .bitrate = 110,
44 .hw_value = ATH10K_HW_RATE_CCK_LP_11M,
45 .hw_value_short = ATH10K_HW_RATE_CCK_SP_11M,
46 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
47
48 { .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
49 { .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
50 { .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
51 { .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
52 { .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
53 { .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
54 { .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
55 { .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
56 };
57
58 static struct ieee80211_rate ath10k_rates_rev2[] = {
59 { .bitrate = 10,
60 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_1M },
61 { .bitrate = 20,
62 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_2M,
63 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_2M,
64 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
65 { .bitrate = 55,
66 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_5_5M,
67 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_5_5M,
68 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
69 { .bitrate = 110,
70 .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_11M,
71 .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_11M,
72 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
73
74 { .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
75 { .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
76 { .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
77 { .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
78 { .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
79 { .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
80 { .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
81 { .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
82 };
83
84 static const struct cfg80211_sar_freq_ranges ath10k_sar_freq_ranges[] = {
85 {.start_freq = 2402, .end_freq = 2494 },
86 {.start_freq = 5170, .end_freq = 5875 },
87 };
88
89 static const struct cfg80211_sar_capa ath10k_sar_capa = {
90 .type = NL80211_SAR_TYPE_POWER,
91 .num_freq_ranges = (ARRAY_SIZE(ath10k_sar_freq_ranges)),
92 .freq_ranges = &ath10k_sar_freq_ranges[0],
93 };
94
95 #define ATH10K_MAC_FIRST_OFDM_RATE_IDX 4
96
97 #define ath10k_a_rates (ath10k_rates + ATH10K_MAC_FIRST_OFDM_RATE_IDX)
98 #define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - \
99 ATH10K_MAC_FIRST_OFDM_RATE_IDX)
100 #define ath10k_g_rates (ath10k_rates + 0)
101 #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
102
103 #define ath10k_g_rates_rev2 (ath10k_rates_rev2 + 0)
104 #define ath10k_g_rates_rev2_size (ARRAY_SIZE(ath10k_rates_rev2))
105
106 #define ath10k_wmi_legacy_rates ath10k_rates
107
ath10k_mac_bitrate_is_cck(int bitrate)108 static bool ath10k_mac_bitrate_is_cck(int bitrate)
109 {
110 switch (bitrate) {
111 case 10:
112 case 20:
113 case 55:
114 case 110:
115 return true;
116 }
117
118 return false;
119 }
120
ath10k_mac_bitrate_to_rate(int bitrate)121 static u8 ath10k_mac_bitrate_to_rate(int bitrate)
122 {
123 return DIV_ROUND_UP(bitrate, 5) |
124 (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
125 }
126
ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band * sband,u8 hw_rate,bool cck)127 u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
128 u8 hw_rate, bool cck)
129 {
130 const struct ieee80211_rate *rate;
131 int i;
132
133 for (i = 0; i < sband->n_bitrates; i++) {
134 rate = &sband->bitrates[i];
135
136 if (ath10k_mac_bitrate_is_cck(rate->bitrate) != cck)
137 continue;
138
139 if (rate->hw_value == hw_rate)
140 return i;
141 else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
142 rate->hw_value_short == hw_rate)
143 return i;
144 }
145
146 return 0;
147 }
148
ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band * sband,u32 bitrate)149 u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
150 u32 bitrate)
151 {
152 int i;
153
154 for (i = 0; i < sband->n_bitrates; i++)
155 if (sband->bitrates[i].bitrate == bitrate)
156 return i;
157
158 return 0;
159 }
160
ath10k_mac_get_rate_hw_value(int bitrate)161 static int ath10k_mac_get_rate_hw_value(int bitrate)
162 {
163 int i;
164 u8 hw_value_prefix = 0;
165
166 if (ath10k_mac_bitrate_is_cck(bitrate))
167 hw_value_prefix = WMI_RATE_PREAMBLE_CCK << 6;
168
169 for (i = 0; i < ARRAY_SIZE(ath10k_rates); i++) {
170 if (ath10k_rates[i].bitrate == bitrate)
171 return hw_value_prefix | ath10k_rates[i].hw_value;
172 }
173
174 return -EINVAL;
175 }
176
ath10k_mac_get_max_vht_mcs_map(u16 mcs_map,int nss)177 static int ath10k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
178 {
179 switch ((mcs_map >> (2 * nss)) & 0x3) {
180 case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
181 case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
182 case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
183 }
184 return 0;
185 }
186
187 static u32
ath10k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])188 ath10k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
189 {
190 int nss;
191
192 for (nss = IEEE80211_HT_MCS_MASK_LEN - 1; nss >= 0; nss--)
193 if (ht_mcs_mask[nss])
194 return nss + 1;
195
196 return 1;
197 }
198
199 static u32
ath10k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])200 ath10k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
201 {
202 int nss;
203
204 for (nss = NL80211_VHT_NSS_MAX - 1; nss >= 0; nss--)
205 if (vht_mcs_mask[nss])
206 return nss + 1;
207
208 return 1;
209 }
210
ath10k_mac_ext_resource_config(struct ath10k * ar,u32 val)211 int ath10k_mac_ext_resource_config(struct ath10k *ar, u32 val)
212 {
213 enum wmi_host_platform_type platform_type;
214 int ret;
215
216 if (test_bit(WMI_SERVICE_TX_MODE_DYNAMIC, ar->wmi.svc_map))
217 platform_type = WMI_HOST_PLATFORM_LOW_PERF;
218 else
219 platform_type = WMI_HOST_PLATFORM_HIGH_PERF;
220
221 ret = ath10k_wmi_ext_resource_config(ar, platform_type, val);
222
223 if (ret && ret != -EOPNOTSUPP) {
224 ath10k_warn(ar, "failed to configure ext resource: %d\n", ret);
225 return ret;
226 }
227
228 return 0;
229 }
230
231 /**********/
232 /* Crypto */
233 /**********/
234
ath10k_send_key(struct ath10k_vif * arvif,struct ieee80211_key_conf * key,enum set_key_cmd cmd,const u8 * macaddr,u32 flags)235 static int ath10k_send_key(struct ath10k_vif *arvif,
236 struct ieee80211_key_conf *key,
237 enum set_key_cmd cmd,
238 const u8 *macaddr, u32 flags)
239 {
240 struct ath10k *ar = arvif->ar;
241 struct wmi_vdev_install_key_arg arg = {
242 .vdev_id = arvif->vdev_id,
243 .key_idx = key->keyidx,
244 .key_len = key->keylen,
245 .key_data = key->key,
246 .key_flags = flags,
247 .macaddr = macaddr,
248 };
249
250 lockdep_assert_held(&arvif->ar->conf_mutex);
251
252 switch (key->cipher) {
253 case WLAN_CIPHER_SUITE_CCMP:
254 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_AES_CCM];
255 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
256 break;
257 case WLAN_CIPHER_SUITE_TKIP:
258 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_TKIP];
259 arg.key_txmic_len = 8;
260 arg.key_rxmic_len = 8;
261 break;
262 case WLAN_CIPHER_SUITE_WEP40:
263 case WLAN_CIPHER_SUITE_WEP104:
264 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_WEP];
265 break;
266 case WLAN_CIPHER_SUITE_CCMP_256:
267 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_AES_CCM];
268 break;
269 case WLAN_CIPHER_SUITE_GCMP:
270 case WLAN_CIPHER_SUITE_GCMP_256:
271 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_AES_GCM];
272 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
273 break;
274 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
275 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
276 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
277 case WLAN_CIPHER_SUITE_AES_CMAC:
278 WARN_ON(1);
279 return -EINVAL;
280 default:
281 ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
282 return -EOPNOTSUPP;
283 }
284
285 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
286 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
287
288 if (cmd == DISABLE_KEY) {
289 arg.key_cipher = ar->wmi_key_cipher[WMI_CIPHER_NONE];
290 arg.key_data = NULL;
291 }
292
293 return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
294 }
295
ath10k_install_key(struct ath10k_vif * arvif,struct ieee80211_key_conf * key,enum set_key_cmd cmd,const u8 * macaddr,u32 flags)296 static int ath10k_install_key(struct ath10k_vif *arvif,
297 struct ieee80211_key_conf *key,
298 enum set_key_cmd cmd,
299 const u8 *macaddr, u32 flags)
300 {
301 struct ath10k *ar = arvif->ar;
302 int ret;
303 unsigned long time_left;
304
305 lockdep_assert_held(&ar->conf_mutex);
306
307 reinit_completion(&ar->install_key_done);
308
309 if (arvif->nohwcrypt)
310 return 1;
311
312 ret = ath10k_send_key(arvif, key, cmd, macaddr, flags);
313 if (ret)
314 return ret;
315
316 time_left = wait_for_completion_timeout(&ar->install_key_done, 3 * HZ);
317 if (time_left == 0)
318 return -ETIMEDOUT;
319
320 return 0;
321 }
322
ath10k_install_peer_wep_keys(struct ath10k_vif * arvif,const u8 * addr)323 static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
324 const u8 *addr)
325 {
326 struct ath10k *ar = arvif->ar;
327 struct ath10k_peer *peer;
328 int ret;
329 int i;
330 u32 flags;
331
332 lockdep_assert_held(&ar->conf_mutex);
333
334 if (WARN_ON(arvif->vif->type != NL80211_IFTYPE_AP &&
335 arvif->vif->type != NL80211_IFTYPE_ADHOC &&
336 arvif->vif->type != NL80211_IFTYPE_MESH_POINT))
337 return -EINVAL;
338
339 spin_lock_bh(&ar->data_lock);
340 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
341 spin_unlock_bh(&ar->data_lock);
342
343 if (!peer)
344 return -ENOENT;
345
346 for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
347 if (arvif->wep_keys[i] == NULL)
348 continue;
349
350 switch (arvif->vif->type) {
351 case NL80211_IFTYPE_AP:
352 flags = WMI_KEY_PAIRWISE;
353
354 if (arvif->def_wep_key_idx == i)
355 flags |= WMI_KEY_TX_USAGE;
356
357 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
358 SET_KEY, addr, flags);
359 if (ret < 0)
360 return ret;
361 break;
362 case NL80211_IFTYPE_ADHOC:
363 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
364 SET_KEY, addr,
365 WMI_KEY_PAIRWISE);
366 if (ret < 0)
367 return ret;
368
369 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
370 SET_KEY, addr, WMI_KEY_GROUP);
371 if (ret < 0)
372 return ret;
373 break;
374 default:
375 WARN_ON(1);
376 return -EINVAL;
377 }
378
379 spin_lock_bh(&ar->data_lock);
380 peer->keys[i] = arvif->wep_keys[i];
381 spin_unlock_bh(&ar->data_lock);
382 }
383
384 /* In some cases (notably with static WEP IBSS with multiple keys)
385 * multicast Tx becomes broken. Both pairwise and groupwise keys are
386 * installed already. Using WMI_KEY_TX_USAGE in different combinations
387 * didn't seem help. Using def_keyid vdev parameter seems to be
388 * effective so use that.
389 *
390 * FIXME: Revisit. Perhaps this can be done in a less hacky way.
391 */
392 if (arvif->vif->type != NL80211_IFTYPE_ADHOC)
393 return 0;
394
395 if (arvif->def_wep_key_idx == -1)
396 return 0;
397
398 ret = ath10k_wmi_vdev_set_param(arvif->ar,
399 arvif->vdev_id,
400 arvif->ar->wmi.vdev_param->def_keyid,
401 arvif->def_wep_key_idx);
402 if (ret) {
403 ath10k_warn(ar, "failed to re-set def wpa key idxon vdev %i: %d\n",
404 arvif->vdev_id, ret);
405 return ret;
406 }
407
408 return 0;
409 }
410
ath10k_clear_peer_keys(struct ath10k_vif * arvif,const u8 * addr)411 static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
412 const u8 *addr)
413 {
414 struct ath10k *ar = arvif->ar;
415 struct ath10k_peer *peer;
416 int first_errno = 0;
417 int ret;
418 int i;
419 u32 flags = 0;
420
421 lockdep_assert_held(&ar->conf_mutex);
422
423 spin_lock_bh(&ar->data_lock);
424 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
425 spin_unlock_bh(&ar->data_lock);
426
427 if (!peer)
428 return -ENOENT;
429
430 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
431 if (peer->keys[i] == NULL)
432 continue;
433
434 /* key flags are not required to delete the key */
435 ret = ath10k_install_key(arvif, peer->keys[i],
436 DISABLE_KEY, addr, flags);
437 if (ret < 0 && first_errno == 0)
438 first_errno = ret;
439
440 if (ret < 0)
441 ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
442 i, ret);
443
444 spin_lock_bh(&ar->data_lock);
445 peer->keys[i] = NULL;
446 spin_unlock_bh(&ar->data_lock);
447 }
448
449 return first_errno;
450 }
451
ath10k_mac_is_peer_wep_key_set(struct ath10k * ar,const u8 * addr,u8 keyidx)452 bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
453 u8 keyidx)
454 {
455 struct ath10k_peer *peer;
456 int i;
457
458 lockdep_assert_held(&ar->data_lock);
459
460 /* We don't know which vdev this peer belongs to,
461 * since WMI doesn't give us that information.
462 *
463 * FIXME: multi-bss needs to be handled.
464 */
465 peer = ath10k_peer_find(ar, 0, addr);
466 if (!peer)
467 return false;
468
469 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
470 if (peer->keys[i] && peer->keys[i]->keyidx == keyidx)
471 return true;
472 }
473
474 return false;
475 }
476
ath10k_clear_vdev_key(struct ath10k_vif * arvif,struct ieee80211_key_conf * key)477 static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
478 struct ieee80211_key_conf *key)
479 {
480 struct ath10k *ar = arvif->ar;
481 struct ath10k_peer *peer;
482 u8 addr[ETH_ALEN];
483 int first_errno = 0;
484 int ret;
485 int i;
486 u32 flags = 0;
487
488 lockdep_assert_held(&ar->conf_mutex);
489
490 for (;;) {
491 /* since ath10k_install_key we can't hold data_lock all the
492 * time, so we try to remove the keys incrementally
493 */
494 spin_lock_bh(&ar->data_lock);
495 i = 0;
496 list_for_each_entry(peer, &ar->peers, list) {
497 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
498 if (peer->keys[i] == key) {
499 ether_addr_copy(addr, peer->addr);
500 peer->keys[i] = NULL;
501 break;
502 }
503 }
504
505 if (i < ARRAY_SIZE(peer->keys))
506 break;
507 }
508 spin_unlock_bh(&ar->data_lock);
509
510 if (i == ARRAY_SIZE(peer->keys))
511 break;
512 /* key flags are not required to delete the key */
513 ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr, flags);
514 if (ret < 0 && first_errno == 0)
515 first_errno = ret;
516
517 if (ret)
518 ath10k_warn(ar, "failed to remove key for %pM: %d\n",
519 addr, ret);
520 }
521
522 return first_errno;
523 }
524
ath10k_mac_vif_update_wep_key(struct ath10k_vif * arvif,struct ieee80211_key_conf * key)525 static int ath10k_mac_vif_update_wep_key(struct ath10k_vif *arvif,
526 struct ieee80211_key_conf *key)
527 {
528 struct ath10k *ar = arvif->ar;
529 struct ath10k_peer *peer;
530 int ret;
531
532 lockdep_assert_held(&ar->conf_mutex);
533
534 list_for_each_entry(peer, &ar->peers, list) {
535 if (ether_addr_equal(peer->addr, arvif->vif->addr))
536 continue;
537
538 if (ether_addr_equal(peer->addr, arvif->bssid))
539 continue;
540
541 if (peer->keys[key->keyidx] == key)
542 continue;
543
544 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vif vdev %i update key %i needs update\n",
545 arvif->vdev_id, key->keyidx);
546
547 ret = ath10k_install_peer_wep_keys(arvif, peer->addr);
548 if (ret) {
549 ath10k_warn(ar, "failed to update wep keys on vdev %i for peer %pM: %d\n",
550 arvif->vdev_id, peer->addr, ret);
551 return ret;
552 }
553 }
554
555 return 0;
556 }
557
558 /*********************/
559 /* General utilities */
560 /*********************/
561
562 static inline enum wmi_phy_mode
chan_to_phymode(const struct cfg80211_chan_def * chandef)563 chan_to_phymode(const struct cfg80211_chan_def *chandef)
564 {
565 enum wmi_phy_mode phymode = MODE_UNKNOWN;
566
567 switch (chandef->chan->band) {
568 case NL80211_BAND_2GHZ:
569 switch (chandef->width) {
570 case NL80211_CHAN_WIDTH_20_NOHT:
571 if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
572 phymode = MODE_11B;
573 else
574 phymode = MODE_11G;
575 break;
576 case NL80211_CHAN_WIDTH_20:
577 phymode = MODE_11NG_HT20;
578 break;
579 case NL80211_CHAN_WIDTH_40:
580 phymode = MODE_11NG_HT40;
581 break;
582 default:
583 phymode = MODE_UNKNOWN;
584 break;
585 }
586 break;
587 case NL80211_BAND_5GHZ:
588 switch (chandef->width) {
589 case NL80211_CHAN_WIDTH_20_NOHT:
590 phymode = MODE_11A;
591 break;
592 case NL80211_CHAN_WIDTH_20:
593 phymode = MODE_11NA_HT20;
594 break;
595 case NL80211_CHAN_WIDTH_40:
596 phymode = MODE_11NA_HT40;
597 break;
598 case NL80211_CHAN_WIDTH_80:
599 phymode = MODE_11AC_VHT80;
600 break;
601 case NL80211_CHAN_WIDTH_160:
602 phymode = MODE_11AC_VHT160;
603 break;
604 case NL80211_CHAN_WIDTH_80P80:
605 phymode = MODE_11AC_VHT80_80;
606 break;
607 default:
608 phymode = MODE_UNKNOWN;
609 break;
610 }
611 break;
612 default:
613 break;
614 }
615
616 WARN_ON(phymode == MODE_UNKNOWN);
617 return phymode;
618 }
619
ath10k_parse_mpdudensity(u8 mpdudensity)620 static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
621 {
622 /*
623 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
624 * 0 for no restriction
625 * 1 for 1/4 us
626 * 2 for 1/2 us
627 * 3 for 1 us
628 * 4 for 2 us
629 * 5 for 4 us
630 * 6 for 8 us
631 * 7 for 16 us
632 */
633 switch (mpdudensity) {
634 case 0:
635 return 0;
636 case 1:
637 case 2:
638 case 3:
639 /* Our lower layer calculations limit our precision to
640 * 1 microsecond
641 */
642 return 1;
643 case 4:
644 return 2;
645 case 5:
646 return 4;
647 case 6:
648 return 8;
649 case 7:
650 return 16;
651 default:
652 return 0;
653 }
654 }
655
ath10k_mac_vif_chan(struct ieee80211_vif * vif,struct cfg80211_chan_def * def)656 int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
657 struct cfg80211_chan_def *def)
658 {
659 struct ieee80211_chanctx_conf *conf;
660
661 rcu_read_lock();
662 conf = rcu_dereference(vif->bss_conf.chanctx_conf);
663 if (!conf) {
664 rcu_read_unlock();
665 return -ENOENT;
666 }
667
668 *def = conf->def;
669 rcu_read_unlock();
670
671 return 0;
672 }
673
ath10k_mac_num_chanctxs_iter(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * conf,void * data)674 static void ath10k_mac_num_chanctxs_iter(struct ieee80211_hw *hw,
675 struct ieee80211_chanctx_conf *conf,
676 void *data)
677 {
678 int *num = data;
679
680 (*num)++;
681 }
682
ath10k_mac_num_chanctxs(struct ath10k * ar)683 static int ath10k_mac_num_chanctxs(struct ath10k *ar)
684 {
685 int num = 0;
686
687 ieee80211_iter_chan_contexts_atomic(ar->hw,
688 ath10k_mac_num_chanctxs_iter,
689 &num);
690
691 return num;
692 }
693
694 static void
ath10k_mac_get_any_chandef_iter(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * conf,void * data)695 ath10k_mac_get_any_chandef_iter(struct ieee80211_hw *hw,
696 struct ieee80211_chanctx_conf *conf,
697 void *data)
698 {
699 struct cfg80211_chan_def **def = data;
700
701 *def = &conf->def;
702 }
703
ath10k_wait_for_peer_delete_done(struct ath10k * ar,u32 vdev_id,const u8 * addr)704 static void ath10k_wait_for_peer_delete_done(struct ath10k *ar, u32 vdev_id,
705 const u8 *addr)
706 {
707 unsigned long time_left;
708 int ret;
709
710 if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
711 ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
712 if (ret) {
713 ath10k_warn(ar, "failed wait for peer deleted");
714 return;
715 }
716
717 time_left = wait_for_completion_timeout(&ar->peer_delete_done,
718 5 * HZ);
719 if (!time_left)
720 ath10k_warn(ar, "Timeout in receiving peer delete response\n");
721 }
722 }
723
ath10k_peer_create(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 vdev_id,const u8 * addr,enum wmi_peer_type peer_type)724 static int ath10k_peer_create(struct ath10k *ar,
725 struct ieee80211_vif *vif,
726 struct ieee80211_sta *sta,
727 u32 vdev_id,
728 const u8 *addr,
729 enum wmi_peer_type peer_type)
730 {
731 struct ath10k_vif *arvif;
732 struct ath10k_peer *peer;
733 int num_peers = 0;
734 int ret;
735
736 lockdep_assert_held(&ar->conf_mutex);
737
738 num_peers = ar->num_peers;
739
740 /* Each vdev consumes a peer entry as well */
741 list_for_each_entry(arvif, &ar->arvifs, list)
742 num_peers++;
743
744 if (num_peers >= ar->max_num_peers)
745 return -ENOBUFS;
746
747 ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
748 if (ret) {
749 ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
750 addr, vdev_id, ret);
751 return ret;
752 }
753
754 ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
755 if (ret) {
756 ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
757 addr, vdev_id, ret);
758 return ret;
759 }
760
761 spin_lock_bh(&ar->data_lock);
762
763 peer = ath10k_peer_find(ar, vdev_id, addr);
764 if (!peer) {
765 spin_unlock_bh(&ar->data_lock);
766 ath10k_warn(ar, "failed to find peer %pM on vdev %i after creation\n",
767 addr, vdev_id);
768 ath10k_wait_for_peer_delete_done(ar, vdev_id, addr);
769 return -ENOENT;
770 }
771
772 peer->vif = vif;
773 peer->sta = sta;
774
775 spin_unlock_bh(&ar->data_lock);
776
777 ar->num_peers++;
778
779 return 0;
780 }
781
ath10k_mac_set_kickout(struct ath10k_vif * arvif)782 static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
783 {
784 struct ath10k *ar = arvif->ar;
785 u32 param;
786 int ret;
787
788 param = ar->wmi.pdev_param->sta_kickout_th;
789 ret = ath10k_wmi_pdev_set_param(ar, param,
790 ATH10K_KICKOUT_THRESHOLD);
791 if (ret) {
792 ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
793 arvif->vdev_id, ret);
794 return ret;
795 }
796
797 param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
798 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
799 ATH10K_KEEPALIVE_MIN_IDLE);
800 if (ret) {
801 ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
802 arvif->vdev_id, ret);
803 return ret;
804 }
805
806 param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
807 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
808 ATH10K_KEEPALIVE_MAX_IDLE);
809 if (ret) {
810 ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
811 arvif->vdev_id, ret);
812 return ret;
813 }
814
815 param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
816 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
817 ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
818 if (ret) {
819 ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
820 arvif->vdev_id, ret);
821 return ret;
822 }
823
824 return 0;
825 }
826
ath10k_mac_set_rts(struct ath10k_vif * arvif,u32 value)827 static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
828 {
829 struct ath10k *ar = arvif->ar;
830 u32 vdev_param;
831
832 vdev_param = ar->wmi.vdev_param->rts_threshold;
833 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
834 }
835
ath10k_peer_delete(struct ath10k * ar,u32 vdev_id,const u8 * addr)836 static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
837 {
838 int ret;
839
840 lockdep_assert_held(&ar->conf_mutex);
841
842 ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
843 if (ret)
844 return ret;
845
846 ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
847 if (ret)
848 return ret;
849
850 if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
851 unsigned long time_left;
852
853 time_left = wait_for_completion_timeout
854 (&ar->peer_delete_done, 5 * HZ);
855
856 if (!time_left) {
857 ath10k_warn(ar, "Timeout in receiving peer delete response\n");
858 return -ETIMEDOUT;
859 }
860 }
861
862 ar->num_peers--;
863
864 return 0;
865 }
866
ath10k_peer_map_cleanup(struct ath10k * ar,struct ath10k_peer * peer)867 static void ath10k_peer_map_cleanup(struct ath10k *ar, struct ath10k_peer *peer)
868 {
869 int peer_id, i;
870
871 lockdep_assert_held(&ar->conf_mutex);
872
873 for_each_set_bit(peer_id, peer->peer_ids,
874 ATH10K_MAX_NUM_PEER_IDS) {
875 ar->peer_map[peer_id] = NULL;
876 }
877
878 /* Double check that peer is properly un-referenced from
879 * the peer_map
880 */
881 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
882 if (ar->peer_map[i] == peer) {
883 ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
884 peer->addr, peer, i);
885 ar->peer_map[i] = NULL;
886 }
887 }
888
889 list_del(&peer->list);
890 kfree(peer);
891 ar->num_peers--;
892 }
893
ath10k_peer_cleanup(struct ath10k * ar,u32 vdev_id)894 static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
895 {
896 struct ath10k_peer *peer, *tmp;
897
898 lockdep_assert_held(&ar->conf_mutex);
899
900 spin_lock_bh(&ar->data_lock);
901 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
902 if (peer->vdev_id != vdev_id)
903 continue;
904
905 ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
906 peer->addr, vdev_id);
907
908 ath10k_peer_map_cleanup(ar, peer);
909 }
910 spin_unlock_bh(&ar->data_lock);
911 }
912
ath10k_peer_cleanup_all(struct ath10k * ar)913 static void ath10k_peer_cleanup_all(struct ath10k *ar)
914 {
915 struct ath10k_peer *peer, *tmp;
916 int i;
917
918 lockdep_assert_held(&ar->conf_mutex);
919
920 spin_lock_bh(&ar->data_lock);
921 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
922 list_del(&peer->list);
923 kfree(peer);
924 }
925
926 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++)
927 ar->peer_map[i] = NULL;
928
929 spin_unlock_bh(&ar->data_lock);
930
931 ar->num_peers = 0;
932 ar->num_stations = 0;
933 }
934
ath10k_mac_tdls_peer_update(struct ath10k * ar,u32 vdev_id,struct ieee80211_sta * sta,enum wmi_tdls_peer_state state)935 static int ath10k_mac_tdls_peer_update(struct ath10k *ar, u32 vdev_id,
936 struct ieee80211_sta *sta,
937 enum wmi_tdls_peer_state state)
938 {
939 int ret;
940 struct wmi_tdls_peer_update_cmd_arg arg = {};
941 struct wmi_tdls_peer_capab_arg cap = {};
942 struct wmi_channel_arg chan_arg = {};
943
944 lockdep_assert_held(&ar->conf_mutex);
945
946 arg.vdev_id = vdev_id;
947 arg.peer_state = state;
948 ether_addr_copy(arg.addr, sta->addr);
949
950 cap.peer_max_sp = sta->max_sp;
951 cap.peer_uapsd_queues = sta->uapsd_queues;
952
953 if (state == WMI_TDLS_PEER_STATE_CONNECTED &&
954 !sta->tdls_initiator)
955 cap.is_peer_responder = 1;
956
957 ret = ath10k_wmi_tdls_peer_update(ar, &arg, &cap, &chan_arg);
958 if (ret) {
959 ath10k_warn(ar, "failed to update tdls peer %pM on vdev %i: %i\n",
960 arg.addr, vdev_id, ret);
961 return ret;
962 }
963
964 return 0;
965 }
966
967 /************************/
968 /* Interface management */
969 /************************/
970
ath10k_mac_vif_beacon_free(struct ath10k_vif * arvif)971 void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
972 {
973 struct ath10k *ar = arvif->ar;
974
975 lockdep_assert_held(&ar->data_lock);
976
977 if (!arvif->beacon)
978 return;
979
980 if (!arvif->beacon_buf)
981 dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
982 arvif->beacon->len, DMA_TO_DEVICE);
983
984 if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
985 arvif->beacon_state != ATH10K_BEACON_SENT))
986 return;
987
988 dev_kfree_skb_any(arvif->beacon);
989
990 arvif->beacon = NULL;
991 arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
992 }
993
ath10k_mac_vif_beacon_cleanup(struct ath10k_vif * arvif)994 static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
995 {
996 struct ath10k *ar = arvif->ar;
997
998 lockdep_assert_held(&ar->data_lock);
999
1000 ath10k_mac_vif_beacon_free(arvif);
1001
1002 if (arvif->beacon_buf) {
1003 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
1004 kfree(arvif->beacon_buf);
1005 else
1006 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
1007 arvif->beacon_buf,
1008 arvif->beacon_paddr);
1009 arvif->beacon_buf = NULL;
1010 }
1011 }
1012
ath10k_vdev_setup_sync(struct ath10k * ar)1013 static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
1014 {
1015 unsigned long time_left;
1016
1017 lockdep_assert_held(&ar->conf_mutex);
1018
1019 if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
1020 return -ESHUTDOWN;
1021
1022 time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
1023 ATH10K_VDEV_SETUP_TIMEOUT_HZ);
1024 if (time_left == 0)
1025 return -ETIMEDOUT;
1026
1027 return ar->last_wmi_vdev_start_status;
1028 }
1029
ath10k_monitor_vdev_start(struct ath10k * ar,int vdev_id)1030 static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
1031 {
1032 struct cfg80211_chan_def *chandef = NULL;
1033 struct ieee80211_channel *channel = NULL;
1034 struct wmi_vdev_start_request_arg arg = {};
1035 int ret = 0;
1036
1037 lockdep_assert_held(&ar->conf_mutex);
1038
1039 ieee80211_iter_chan_contexts_atomic(ar->hw,
1040 ath10k_mac_get_any_chandef_iter,
1041 &chandef);
1042 if (WARN_ON_ONCE(!chandef))
1043 return -ENOENT;
1044
1045 channel = chandef->chan;
1046
1047 arg.vdev_id = vdev_id;
1048 arg.channel.freq = channel->center_freq;
1049 arg.channel.band_center_freq1 = chandef->center_freq1;
1050 arg.channel.band_center_freq2 = chandef->center_freq2;
1051
1052 /* TODO setup this dynamically, what in case we
1053 * don't have any vifs?
1054 */
1055 arg.channel.mode = chan_to_phymode(chandef);
1056 arg.channel.chan_radar =
1057 !!(channel->flags & IEEE80211_CHAN_RADAR);
1058
1059 arg.channel.min_power = 0;
1060 arg.channel.max_power = channel->max_power * 2;
1061 arg.channel.max_reg_power = channel->max_reg_power * 2;
1062 arg.channel.max_antenna_gain = channel->max_antenna_gain;
1063
1064 reinit_completion(&ar->vdev_setup_done);
1065 reinit_completion(&ar->vdev_delete_done);
1066
1067 ret = ath10k_wmi_vdev_start(ar, &arg);
1068 if (ret) {
1069 ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
1070 vdev_id, ret);
1071 return ret;
1072 }
1073
1074 ret = ath10k_vdev_setup_sync(ar);
1075 if (ret) {
1076 ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
1077 vdev_id, ret);
1078 return ret;
1079 }
1080
1081 ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
1082 if (ret) {
1083 ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
1084 vdev_id, ret);
1085 goto vdev_stop;
1086 }
1087
1088 ar->monitor_vdev_id = vdev_id;
1089
1090 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
1091 ar->monitor_vdev_id);
1092 return 0;
1093
1094 vdev_stop:
1095 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
1096 if (ret)
1097 ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
1098 ar->monitor_vdev_id, ret);
1099
1100 return ret;
1101 }
1102
ath10k_monitor_vdev_stop(struct ath10k * ar)1103 static int ath10k_monitor_vdev_stop(struct ath10k *ar)
1104 {
1105 int ret = 0;
1106
1107 lockdep_assert_held(&ar->conf_mutex);
1108
1109 ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
1110 if (ret)
1111 ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
1112 ar->monitor_vdev_id, ret);
1113
1114 reinit_completion(&ar->vdev_setup_done);
1115 reinit_completion(&ar->vdev_delete_done);
1116
1117 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
1118 if (ret)
1119 ath10k_warn(ar, "failed to request monitor vdev %i stop: %d\n",
1120 ar->monitor_vdev_id, ret);
1121
1122 ret = ath10k_vdev_setup_sync(ar);
1123 if (ret)
1124 ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
1125 ar->monitor_vdev_id, ret);
1126
1127 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
1128 ar->monitor_vdev_id);
1129 return ret;
1130 }
1131
ath10k_monitor_vdev_create(struct ath10k * ar)1132 static int ath10k_monitor_vdev_create(struct ath10k *ar)
1133 {
1134 int bit, ret = 0;
1135
1136 lockdep_assert_held(&ar->conf_mutex);
1137
1138 if (ar->free_vdev_map == 0) {
1139 ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
1140 return -ENOMEM;
1141 }
1142
1143 bit = __ffs64(ar->free_vdev_map);
1144
1145 ar->monitor_vdev_id = bit;
1146
1147 ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
1148 WMI_VDEV_TYPE_MONITOR,
1149 0, ar->mac_addr);
1150 if (ret) {
1151 ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
1152 ar->monitor_vdev_id, ret);
1153 return ret;
1154 }
1155
1156 ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
1157 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
1158 ar->monitor_vdev_id);
1159
1160 return 0;
1161 }
1162
ath10k_monitor_vdev_delete(struct ath10k * ar)1163 static int ath10k_monitor_vdev_delete(struct ath10k *ar)
1164 {
1165 int ret = 0;
1166
1167 lockdep_assert_held(&ar->conf_mutex);
1168
1169 ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
1170 if (ret) {
1171 ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
1172 ar->monitor_vdev_id, ret);
1173 return ret;
1174 }
1175
1176 ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
1177
1178 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
1179 ar->monitor_vdev_id);
1180 return ret;
1181 }
1182
ath10k_monitor_start(struct ath10k * ar)1183 static int ath10k_monitor_start(struct ath10k *ar)
1184 {
1185 int ret;
1186
1187 lockdep_assert_held(&ar->conf_mutex);
1188
1189 ret = ath10k_monitor_vdev_create(ar);
1190 if (ret) {
1191 ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
1192 return ret;
1193 }
1194
1195 ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
1196 if (ret) {
1197 ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
1198 ath10k_monitor_vdev_delete(ar);
1199 return ret;
1200 }
1201
1202 ar->monitor_started = true;
1203 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
1204
1205 return 0;
1206 }
1207
ath10k_monitor_stop(struct ath10k * ar)1208 static int ath10k_monitor_stop(struct ath10k *ar)
1209 {
1210 int ret;
1211
1212 lockdep_assert_held(&ar->conf_mutex);
1213
1214 ret = ath10k_monitor_vdev_stop(ar);
1215 if (ret) {
1216 ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
1217 return ret;
1218 }
1219
1220 ret = ath10k_monitor_vdev_delete(ar);
1221 if (ret) {
1222 ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
1223 return ret;
1224 }
1225
1226 ar->monitor_started = false;
1227 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
1228
1229 return 0;
1230 }
1231
ath10k_mac_monitor_vdev_is_needed(struct ath10k * ar)1232 static bool ath10k_mac_monitor_vdev_is_needed(struct ath10k *ar)
1233 {
1234 int num_ctx;
1235
1236 /* At least one chanctx is required to derive a channel to start
1237 * monitor vdev on.
1238 */
1239 num_ctx = ath10k_mac_num_chanctxs(ar);
1240 if (num_ctx == 0)
1241 return false;
1242
1243 /* If there's already an existing special monitor interface then don't
1244 * bother creating another monitor vdev.
1245 */
1246 if (ar->monitor_arvif)
1247 return false;
1248
1249 return ar->monitor ||
1250 (!test_bit(ATH10K_FW_FEATURE_ALLOWS_MESH_BCAST,
1251 ar->running_fw->fw_file.fw_features) &&
1252 (ar->filter_flags & FIF_OTHER_BSS)) ||
1253 test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1254 }
1255
ath10k_mac_monitor_vdev_is_allowed(struct ath10k * ar)1256 static bool ath10k_mac_monitor_vdev_is_allowed(struct ath10k *ar)
1257 {
1258 int num_ctx;
1259
1260 num_ctx = ath10k_mac_num_chanctxs(ar);
1261
1262 /* FIXME: Current interface combinations and cfg80211/mac80211 code
1263 * shouldn't allow this but make sure to prevent handling the following
1264 * case anyway since multi-channel DFS hasn't been tested at all.
1265 */
1266 if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) && num_ctx > 1)
1267 return false;
1268
1269 return true;
1270 }
1271
ath10k_monitor_recalc(struct ath10k * ar)1272 static int ath10k_monitor_recalc(struct ath10k *ar)
1273 {
1274 bool needed;
1275 bool allowed;
1276 int ret;
1277
1278 lockdep_assert_held(&ar->conf_mutex);
1279
1280 needed = ath10k_mac_monitor_vdev_is_needed(ar);
1281 allowed = ath10k_mac_monitor_vdev_is_allowed(ar);
1282
1283 ath10k_dbg(ar, ATH10K_DBG_MAC,
1284 "mac monitor recalc started? %d needed? %d allowed? %d\n",
1285 ar->monitor_started, needed, allowed);
1286
1287 if (WARN_ON(needed && !allowed)) {
1288 if (ar->monitor_started) {
1289 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopping disallowed monitor\n");
1290
1291 ret = ath10k_monitor_stop(ar);
1292 if (ret)
1293 ath10k_warn(ar, "failed to stop disallowed monitor: %d\n",
1294 ret);
1295 /* not serious */
1296 }
1297
1298 return -EPERM;
1299 }
1300
1301 if (needed == ar->monitor_started)
1302 return 0;
1303
1304 if (needed)
1305 return ath10k_monitor_start(ar);
1306 else
1307 return ath10k_monitor_stop(ar);
1308 }
1309
ath10k_mac_can_set_cts_prot(struct ath10k_vif * arvif)1310 static bool ath10k_mac_can_set_cts_prot(struct ath10k_vif *arvif)
1311 {
1312 struct ath10k *ar = arvif->ar;
1313
1314 lockdep_assert_held(&ar->conf_mutex);
1315
1316 if (!arvif->is_started) {
1317 ath10k_dbg(ar, ATH10K_DBG_MAC, "defer cts setup, vdev is not ready yet\n");
1318 return false;
1319 }
1320
1321 return true;
1322 }
1323
ath10k_mac_set_cts_prot(struct ath10k_vif * arvif)1324 static int ath10k_mac_set_cts_prot(struct ath10k_vif *arvif)
1325 {
1326 struct ath10k *ar = arvif->ar;
1327 u32 vdev_param;
1328
1329 lockdep_assert_held(&ar->conf_mutex);
1330
1331 vdev_param = ar->wmi.vdev_param->protection_mode;
1332
1333 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_protection %d\n",
1334 arvif->vdev_id, arvif->use_cts_prot);
1335
1336 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
1337 arvif->use_cts_prot ? 1 : 0);
1338 }
1339
ath10k_recalc_rtscts_prot(struct ath10k_vif * arvif)1340 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
1341 {
1342 struct ath10k *ar = arvif->ar;
1343 u32 vdev_param, rts_cts = 0;
1344
1345 lockdep_assert_held(&ar->conf_mutex);
1346
1347 vdev_param = ar->wmi.vdev_param->enable_rtscts;
1348
1349 rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
1350
1351 if (arvif->num_legacy_stations > 0)
1352 rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
1353 WMI_RTSCTS_PROFILE);
1354 else
1355 rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
1356 WMI_RTSCTS_PROFILE);
1357
1358 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d recalc rts/cts prot %d\n",
1359 arvif->vdev_id, rts_cts);
1360
1361 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
1362 rts_cts);
1363 }
1364
ath10k_start_cac(struct ath10k * ar)1365 static int ath10k_start_cac(struct ath10k *ar)
1366 {
1367 int ret;
1368
1369 lockdep_assert_held(&ar->conf_mutex);
1370
1371 set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1372
1373 ret = ath10k_monitor_recalc(ar);
1374 if (ret) {
1375 ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1376 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1377 return ret;
1378 }
1379
1380 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1381 ar->monitor_vdev_id);
1382
1383 return 0;
1384 }
1385
ath10k_stop_cac(struct ath10k * ar)1386 static int ath10k_stop_cac(struct ath10k *ar)
1387 {
1388 lockdep_assert_held(&ar->conf_mutex);
1389
1390 /* CAC is not running - do nothing */
1391 if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
1392 return 0;
1393
1394 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1395 ath10k_monitor_stop(ar);
1396
1397 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1398
1399 return 0;
1400 }
1401
ath10k_mac_has_radar_iter(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * conf,void * data)1402 static void ath10k_mac_has_radar_iter(struct ieee80211_hw *hw,
1403 struct ieee80211_chanctx_conf *conf,
1404 void *data)
1405 {
1406 bool *ret = data;
1407
1408 if (!*ret && conf->radar_enabled)
1409 *ret = true;
1410 }
1411
ath10k_mac_has_radar_enabled(struct ath10k * ar)1412 static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
1413 {
1414 bool has_radar = false;
1415
1416 ieee80211_iter_chan_contexts_atomic(ar->hw,
1417 ath10k_mac_has_radar_iter,
1418 &has_radar);
1419
1420 return has_radar;
1421 }
1422
ath10k_recalc_radar_detection(struct ath10k * ar)1423 static void ath10k_recalc_radar_detection(struct ath10k *ar)
1424 {
1425 int ret;
1426
1427 lockdep_assert_held(&ar->conf_mutex);
1428
1429 ath10k_stop_cac(ar);
1430
1431 if (!ath10k_mac_has_radar_enabled(ar))
1432 return;
1433
1434 if (ar->num_started_vdevs > 0)
1435 return;
1436
1437 ret = ath10k_start_cac(ar);
1438 if (ret) {
1439 /*
1440 * Not possible to start CAC on current channel so starting
1441 * radiation is not allowed, make this channel DFS_UNAVAILABLE
1442 * by indicating that radar was detected.
1443 */
1444 ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1445 ieee80211_radar_detected(ar->hw);
1446 }
1447 }
1448
ath10k_vdev_stop(struct ath10k_vif * arvif)1449 static int ath10k_vdev_stop(struct ath10k_vif *arvif)
1450 {
1451 struct ath10k *ar = arvif->ar;
1452 int ret;
1453
1454 lockdep_assert_held(&ar->conf_mutex);
1455
1456 reinit_completion(&ar->vdev_setup_done);
1457 reinit_completion(&ar->vdev_delete_done);
1458
1459 ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
1460 if (ret) {
1461 ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
1462 arvif->vdev_id, ret);
1463 return ret;
1464 }
1465
1466 ret = ath10k_vdev_setup_sync(ar);
1467 if (ret) {
1468 ath10k_warn(ar, "failed to synchronize setup for vdev %i: %d\n",
1469 arvif->vdev_id, ret);
1470 return ret;
1471 }
1472
1473 WARN_ON(ar->num_started_vdevs == 0);
1474
1475 if (ar->num_started_vdevs != 0) {
1476 ar->num_started_vdevs--;
1477 ath10k_recalc_radar_detection(ar);
1478 }
1479
1480 return ret;
1481 }
1482
ath10k_vdev_start_restart(struct ath10k_vif * arvif,const struct cfg80211_chan_def * chandef,bool restart)1483 static int ath10k_vdev_start_restart(struct ath10k_vif *arvif,
1484 const struct cfg80211_chan_def *chandef,
1485 bool restart)
1486 {
1487 struct ath10k *ar = arvif->ar;
1488 struct wmi_vdev_start_request_arg arg = {};
1489 int ret = 0;
1490
1491 lockdep_assert_held(&ar->conf_mutex);
1492
1493 reinit_completion(&ar->vdev_setup_done);
1494 reinit_completion(&ar->vdev_delete_done);
1495
1496 arg.vdev_id = arvif->vdev_id;
1497 arg.dtim_period = arvif->dtim_period;
1498 arg.bcn_intval = arvif->beacon_interval;
1499
1500 arg.channel.freq = chandef->chan->center_freq;
1501 arg.channel.band_center_freq1 = chandef->center_freq1;
1502 arg.channel.band_center_freq2 = chandef->center_freq2;
1503 arg.channel.mode = chan_to_phymode(chandef);
1504
1505 arg.channel.min_power = 0;
1506 arg.channel.max_power = chandef->chan->max_power * 2;
1507 arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
1508 arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain;
1509
1510 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
1511 arg.ssid = arvif->u.ap.ssid;
1512 arg.ssid_len = arvif->u.ap.ssid_len;
1513 arg.hidden_ssid = arvif->u.ap.hidden_ssid;
1514
1515 /* For now allow DFS for AP mode */
1516 arg.channel.chan_radar =
1517 !!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
1518 } else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
1519 arg.ssid = arvif->vif->cfg.ssid;
1520 arg.ssid_len = arvif->vif->cfg.ssid_len;
1521 }
1522
1523 ath10k_dbg(ar, ATH10K_DBG_MAC,
1524 "mac vdev %d start center_freq %d phymode %s\n",
1525 arg.vdev_id, arg.channel.freq,
1526 ath10k_wmi_phymode_str(arg.channel.mode));
1527
1528 if (restart)
1529 ret = ath10k_wmi_vdev_restart(ar, &arg);
1530 else
1531 ret = ath10k_wmi_vdev_start(ar, &arg);
1532
1533 if (ret) {
1534 ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
1535 arg.vdev_id, ret);
1536 return ret;
1537 }
1538
1539 ret = ath10k_vdev_setup_sync(ar);
1540 if (ret) {
1541 ath10k_warn(ar,
1542 "failed to synchronize setup for vdev %i restart %d: %d\n",
1543 arg.vdev_id, restart, ret);
1544 return ret;
1545 }
1546
1547 ar->num_started_vdevs++;
1548 ath10k_recalc_radar_detection(ar);
1549
1550 return ret;
1551 }
1552
ath10k_vdev_start(struct ath10k_vif * arvif,const struct cfg80211_chan_def * def)1553 static int ath10k_vdev_start(struct ath10k_vif *arvif,
1554 const struct cfg80211_chan_def *def)
1555 {
1556 return ath10k_vdev_start_restart(arvif, def, false);
1557 }
1558
ath10k_vdev_restart(struct ath10k_vif * arvif,const struct cfg80211_chan_def * def)1559 static int ath10k_vdev_restart(struct ath10k_vif *arvif,
1560 const struct cfg80211_chan_def *def)
1561 {
1562 return ath10k_vdev_start_restart(arvif, def, true);
1563 }
1564
ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif * arvif,struct sk_buff * bcn)1565 static int ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif *arvif,
1566 struct sk_buff *bcn)
1567 {
1568 struct ath10k *ar = arvif->ar;
1569 struct ieee80211_mgmt *mgmt;
1570 const u8 *p2p_ie;
1571 int ret;
1572
1573 if (arvif->vif->type != NL80211_IFTYPE_AP || !arvif->vif->p2p)
1574 return 0;
1575
1576 mgmt = (void *)bcn->data;
1577 p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1578 mgmt->u.beacon.variable,
1579 bcn->len - (mgmt->u.beacon.variable -
1580 bcn->data));
1581 if (!p2p_ie)
1582 return -ENOENT;
1583
1584 ret = ath10k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
1585 if (ret) {
1586 ath10k_warn(ar, "failed to submit p2p go bcn ie for vdev %i: %d\n",
1587 arvif->vdev_id, ret);
1588 return ret;
1589 }
1590
1591 return 0;
1592 }
1593
ath10k_mac_remove_vendor_ie(struct sk_buff * skb,unsigned int oui,u8 oui_type,size_t ie_offset)1594 static int ath10k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
1595 u8 oui_type, size_t ie_offset)
1596 {
1597 size_t len;
1598 const u8 *next;
1599 const u8 *end;
1600 u8 *ie;
1601
1602 if (WARN_ON(skb->len < ie_offset))
1603 return -EINVAL;
1604
1605 ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
1606 skb->data + ie_offset,
1607 skb->len - ie_offset);
1608 if (!ie)
1609 return -ENOENT;
1610
1611 len = ie[1] + 2;
1612 end = skb->data + skb->len;
1613 next = ie + len;
1614
1615 if (WARN_ON(next > end))
1616 return -EINVAL;
1617
1618 memmove(ie, next, end - next);
1619 skb_trim(skb, skb->len - len);
1620
1621 return 0;
1622 }
1623
ath10k_mac_setup_bcn_tmpl(struct ath10k_vif * arvif)1624 static int ath10k_mac_setup_bcn_tmpl(struct ath10k_vif *arvif)
1625 {
1626 struct ath10k *ar = arvif->ar;
1627 struct ieee80211_hw *hw = ar->hw;
1628 struct ieee80211_vif *vif = arvif->vif;
1629 struct ieee80211_mutable_offsets offs = {};
1630 struct sk_buff *bcn;
1631 int ret;
1632
1633 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1634 return 0;
1635
1636 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
1637 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
1638 return 0;
1639
1640 bcn = ieee80211_beacon_get_template(hw, vif, &offs, 0);
1641 if (!bcn) {
1642 ath10k_warn(ar, "failed to get beacon template from mac80211\n");
1643 return -EPERM;
1644 }
1645
1646 ret = ath10k_mac_setup_bcn_p2p_ie(arvif, bcn);
1647 if (ret) {
1648 ath10k_warn(ar, "failed to setup p2p go bcn ie: %d\n", ret);
1649 kfree_skb(bcn);
1650 return ret;
1651 }
1652
1653 /* P2P IE is inserted by firmware automatically (as configured above)
1654 * so remove it from the base beacon template to avoid duplicate P2P
1655 * IEs in beacon frames.
1656 */
1657 ath10k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1658 offsetof(struct ieee80211_mgmt,
1659 u.beacon.variable));
1660
1661 ret = ath10k_wmi_bcn_tmpl(ar, arvif->vdev_id, offs.tim_offset, bcn, 0,
1662 0, NULL, 0);
1663 kfree_skb(bcn);
1664
1665 if (ret) {
1666 ath10k_warn(ar, "failed to submit beacon template command: %d\n",
1667 ret);
1668 return ret;
1669 }
1670
1671 return 0;
1672 }
1673
ath10k_mac_setup_prb_tmpl(struct ath10k_vif * arvif)1674 static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
1675 {
1676 struct ath10k *ar = arvif->ar;
1677 struct ieee80211_hw *hw = ar->hw;
1678 struct ieee80211_vif *vif = arvif->vif;
1679 struct sk_buff *prb;
1680 int ret;
1681
1682 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1683 return 0;
1684
1685 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1686 return 0;
1687
1688 /* For mesh, probe response and beacon share the same template */
1689 if (ieee80211_vif_is_mesh(vif))
1690 return 0;
1691
1692 prb = ieee80211_proberesp_get(hw, vif);
1693 if (!prb) {
1694 ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
1695 return -EPERM;
1696 }
1697
1698 ret = ath10k_wmi_prb_tmpl(ar, arvif->vdev_id, prb);
1699 kfree_skb(prb);
1700
1701 if (ret) {
1702 ath10k_warn(ar, "failed to submit probe resp template command: %d\n",
1703 ret);
1704 return ret;
1705 }
1706
1707 return 0;
1708 }
1709
ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif * arvif)1710 static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
1711 {
1712 struct ath10k *ar = arvif->ar;
1713 struct cfg80211_chan_def def;
1714 int ret;
1715
1716 /* When originally vdev is started during assign_vif_chanctx() some
1717 * information is missing, notably SSID. Firmware revisions with beacon
1718 * offloading require the SSID to be provided during vdev (re)start to
1719 * handle hidden SSID properly.
1720 *
1721 * Vdev restart must be done after vdev has been both started and
1722 * upped. Otherwise some firmware revisions (at least 10.2) fail to
1723 * deliver vdev restart response event causing timeouts during vdev
1724 * syncing in ath10k.
1725 *
1726 * Note: The vdev down/up and template reinstallation could be skipped
1727 * since only wmi-tlv firmware are known to have beacon offload and
1728 * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
1729 * response delivery. It's probably more robust to keep it as is.
1730 */
1731 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1732 return 0;
1733
1734 if (WARN_ON(!arvif->is_started))
1735 return -EINVAL;
1736
1737 if (WARN_ON(!arvif->is_up))
1738 return -EINVAL;
1739
1740 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
1741 return -EINVAL;
1742
1743 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1744 if (ret) {
1745 ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
1746 arvif->vdev_id, ret);
1747 return ret;
1748 }
1749
1750 /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
1751 * firmware will crash upon vdev up.
1752 */
1753
1754 ret = ath10k_mac_setup_bcn_tmpl(arvif);
1755 if (ret) {
1756 ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
1757 return ret;
1758 }
1759
1760 ret = ath10k_mac_setup_prb_tmpl(arvif);
1761 if (ret) {
1762 ath10k_warn(ar, "failed to update presp template: %d\n", ret);
1763 return ret;
1764 }
1765
1766 ret = ath10k_vdev_restart(arvif, &def);
1767 if (ret) {
1768 ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
1769 arvif->vdev_id, ret);
1770 return ret;
1771 }
1772
1773 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1774 arvif->bssid);
1775 if (ret) {
1776 ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
1777 arvif->vdev_id, ret);
1778 return ret;
1779 }
1780
1781 return 0;
1782 }
1783
ath10k_control_beaconing(struct ath10k_vif * arvif,struct ieee80211_bss_conf * info)1784 static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1785 struct ieee80211_bss_conf *info)
1786 {
1787 struct ath10k *ar = arvif->ar;
1788 int ret = 0;
1789
1790 lockdep_assert_held(&arvif->ar->conf_mutex);
1791
1792 if (!info->enable_beacon) {
1793 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1794 if (ret)
1795 ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
1796 arvif->vdev_id, ret);
1797
1798 arvif->is_up = false;
1799
1800 spin_lock_bh(&arvif->ar->data_lock);
1801 ath10k_mac_vif_beacon_free(arvif);
1802 spin_unlock_bh(&arvif->ar->data_lock);
1803
1804 return;
1805 }
1806
1807 arvif->tx_seq_no = 0x1000;
1808
1809 arvif->aid = 0;
1810 ether_addr_copy(arvif->bssid, info->bssid);
1811
1812 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1813 arvif->bssid);
1814 if (ret) {
1815 ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1816 arvif->vdev_id, ret);
1817 return;
1818 }
1819
1820 arvif->is_up = true;
1821
1822 ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
1823 if (ret) {
1824 ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
1825 arvif->vdev_id, ret);
1826 return;
1827 }
1828
1829 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1830 }
1831
ath10k_control_ibss(struct ath10k_vif * arvif,struct ieee80211_vif * vif)1832 static void ath10k_control_ibss(struct ath10k_vif *arvif,
1833 struct ieee80211_vif *vif)
1834 {
1835 struct ath10k *ar = arvif->ar;
1836 u32 vdev_param;
1837 int ret = 0;
1838
1839 lockdep_assert_held(&arvif->ar->conf_mutex);
1840
1841 if (!vif->cfg.ibss_joined) {
1842 if (is_zero_ether_addr(arvif->bssid))
1843 return;
1844
1845 eth_zero_addr(arvif->bssid);
1846
1847 return;
1848 }
1849
1850 vdev_param = arvif->ar->wmi.vdev_param->atim_window;
1851 ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1852 ATH10K_DEFAULT_ATIM);
1853 if (ret)
1854 ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1855 arvif->vdev_id, ret);
1856 }
1857
ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif * arvif)1858 static int ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif *arvif)
1859 {
1860 struct ath10k *ar = arvif->ar;
1861 u32 param;
1862 u32 value;
1863 int ret;
1864
1865 lockdep_assert_held(&arvif->ar->conf_mutex);
1866
1867 if (arvif->u.sta.uapsd)
1868 value = WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER;
1869 else
1870 value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
1871
1872 param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
1873 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param, value);
1874 if (ret) {
1875 ath10k_warn(ar, "failed to submit ps wake threshold %u on vdev %i: %d\n",
1876 value, arvif->vdev_id, ret);
1877 return ret;
1878 }
1879
1880 return 0;
1881 }
1882
ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif * arvif)1883 static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
1884 {
1885 struct ath10k *ar = arvif->ar;
1886 u32 param;
1887 u32 value;
1888 int ret;
1889
1890 lockdep_assert_held(&arvif->ar->conf_mutex);
1891
1892 if (arvif->u.sta.uapsd)
1893 value = WMI_STA_PS_PSPOLL_COUNT_UAPSD;
1894 else
1895 value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
1896
1897 param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
1898 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
1899 param, value);
1900 if (ret) {
1901 ath10k_warn(ar, "failed to submit ps poll count %u on vdev %i: %d\n",
1902 value, arvif->vdev_id, ret);
1903 return ret;
1904 }
1905
1906 return 0;
1907 }
1908
ath10k_mac_num_vifs_started(struct ath10k * ar)1909 static int ath10k_mac_num_vifs_started(struct ath10k *ar)
1910 {
1911 struct ath10k_vif *arvif;
1912 int num = 0;
1913
1914 lockdep_assert_held(&ar->conf_mutex);
1915
1916 list_for_each_entry(arvif, &ar->arvifs, list)
1917 if (arvif->is_started)
1918 num++;
1919
1920 return num;
1921 }
1922
ath10k_mac_vif_setup_ps(struct ath10k_vif * arvif)1923 static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1924 {
1925 struct ath10k *ar = arvif->ar;
1926 struct ieee80211_vif *vif = arvif->vif;
1927 struct ieee80211_conf *conf = &ar->hw->conf;
1928 enum wmi_sta_powersave_param param;
1929 enum wmi_sta_ps_mode psmode;
1930 int ret;
1931 int ps_timeout;
1932 bool enable_ps;
1933
1934 lockdep_assert_held(&arvif->ar->conf_mutex);
1935
1936 if (arvif->vif->type != NL80211_IFTYPE_STATION)
1937 return 0;
1938
1939 enable_ps = arvif->ps;
1940
1941 if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
1942 !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
1943 ar->running_fw->fw_file.fw_features)) {
1944 ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
1945 arvif->vdev_id);
1946 enable_ps = false;
1947 }
1948
1949 if (!arvif->is_started) {
1950 /* mac80211 can update vif powersave state while disconnected.
1951 * Firmware doesn't behave nicely and consumes more power than
1952 * necessary if PS is disabled on a non-started vdev. Hence
1953 * force-enable PS for non-running vdevs.
1954 */
1955 psmode = WMI_STA_PS_MODE_ENABLED;
1956 } else if (enable_ps) {
1957 psmode = WMI_STA_PS_MODE_ENABLED;
1958 param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
1959
1960 ps_timeout = conf->dynamic_ps_timeout;
1961 if (ps_timeout == 0) {
1962 /* Firmware doesn't like 0 */
1963 ps_timeout = ieee80211_tu_to_usec(
1964 vif->bss_conf.beacon_int) / 1000;
1965 }
1966
1967 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1968 ps_timeout);
1969 if (ret) {
1970 ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1971 arvif->vdev_id, ret);
1972 return ret;
1973 }
1974 } else {
1975 psmode = WMI_STA_PS_MODE_DISABLED;
1976 }
1977
1978 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
1979 arvif->vdev_id, psmode ? "enable" : "disable");
1980
1981 ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
1982 if (ret) {
1983 ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1984 psmode, arvif->vdev_id, ret);
1985 return ret;
1986 }
1987
1988 return 0;
1989 }
1990
ath10k_mac_vif_disable_keepalive(struct ath10k_vif * arvif)1991 static int ath10k_mac_vif_disable_keepalive(struct ath10k_vif *arvif)
1992 {
1993 struct ath10k *ar = arvif->ar;
1994 struct wmi_sta_keepalive_arg arg = {};
1995 int ret;
1996
1997 lockdep_assert_held(&arvif->ar->conf_mutex);
1998
1999 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
2000 return 0;
2001
2002 if (!test_bit(WMI_SERVICE_STA_KEEP_ALIVE, ar->wmi.svc_map))
2003 return 0;
2004
2005 /* Some firmware revisions have a bug and ignore the `enabled` field.
2006 * Instead use the interval to disable the keepalive.
2007 */
2008 arg.vdev_id = arvif->vdev_id;
2009 arg.enabled = 1;
2010 arg.method = WMI_STA_KEEPALIVE_METHOD_NULL_FRAME;
2011 arg.interval = WMI_STA_KEEPALIVE_INTERVAL_DISABLE;
2012
2013 ret = ath10k_wmi_sta_keepalive(ar, &arg);
2014 if (ret) {
2015 ath10k_warn(ar, "failed to submit keepalive on vdev %i: %d\n",
2016 arvif->vdev_id, ret);
2017 return ret;
2018 }
2019
2020 return 0;
2021 }
2022
ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif * arvif)2023 static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif)
2024 {
2025 struct ath10k *ar = arvif->ar;
2026 struct ieee80211_vif *vif = arvif->vif;
2027 int ret;
2028
2029 lockdep_assert_held(&arvif->ar->conf_mutex);
2030
2031 if (WARN_ON(!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)))
2032 return;
2033
2034 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
2035 return;
2036
2037 if (!vif->bss_conf.csa_active)
2038 return;
2039
2040 if (!arvif->is_up)
2041 return;
2042
2043 if (!ieee80211_beacon_cntdwn_is_complete(vif)) {
2044 ieee80211_beacon_update_cntdwn(vif);
2045
2046 ret = ath10k_mac_setup_bcn_tmpl(arvif);
2047 if (ret)
2048 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
2049 ret);
2050
2051 ret = ath10k_mac_setup_prb_tmpl(arvif);
2052 if (ret)
2053 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
2054 ret);
2055 } else {
2056 ieee80211_csa_finish(vif);
2057 }
2058 }
2059
ath10k_mac_vif_ap_csa_work(struct work_struct * work)2060 static void ath10k_mac_vif_ap_csa_work(struct work_struct *work)
2061 {
2062 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
2063 ap_csa_work);
2064 struct ath10k *ar = arvif->ar;
2065
2066 mutex_lock(&ar->conf_mutex);
2067 ath10k_mac_vif_ap_csa_count_down(arvif);
2068 mutex_unlock(&ar->conf_mutex);
2069 }
2070
ath10k_mac_handle_beacon_iter(void * data,u8 * mac,struct ieee80211_vif * vif)2071 static void ath10k_mac_handle_beacon_iter(void *data, u8 *mac,
2072 struct ieee80211_vif *vif)
2073 {
2074 struct sk_buff *skb = data;
2075 struct ieee80211_mgmt *mgmt = (void *)skb->data;
2076 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2077
2078 if (vif->type != NL80211_IFTYPE_STATION)
2079 return;
2080
2081 if (!ether_addr_equal(mgmt->bssid, vif->bss_conf.bssid))
2082 return;
2083
2084 cancel_delayed_work(&arvif->connection_loss_work);
2085 }
2086
ath10k_mac_handle_beacon(struct ath10k * ar,struct sk_buff * skb)2087 void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb)
2088 {
2089 ieee80211_iterate_active_interfaces_atomic(ar->hw,
2090 ATH10K_ITER_NORMAL_FLAGS,
2091 ath10k_mac_handle_beacon_iter,
2092 skb);
2093 }
2094
ath10k_mac_handle_beacon_miss_iter(void * data,u8 * mac,struct ieee80211_vif * vif)2095 static void ath10k_mac_handle_beacon_miss_iter(void *data, u8 *mac,
2096 struct ieee80211_vif *vif)
2097 {
2098 u32 *vdev_id = data;
2099 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2100 struct ath10k *ar = arvif->ar;
2101 struct ieee80211_hw *hw = ar->hw;
2102
2103 if (arvif->vdev_id != *vdev_id)
2104 return;
2105
2106 if (!arvif->is_up)
2107 return;
2108
2109 ieee80211_beacon_loss(vif);
2110
2111 /* Firmware doesn't report beacon loss events repeatedly. If AP probe
2112 * (done by mac80211) succeeds but beacons do not resume then it
2113 * doesn't make sense to continue operation. Queue connection loss work
2114 * which can be cancelled when beacon is received.
2115 */
2116 ieee80211_queue_delayed_work(hw, &arvif->connection_loss_work,
2117 ATH10K_CONNECTION_LOSS_HZ);
2118 }
2119
ath10k_mac_handle_beacon_miss(struct ath10k * ar,u32 vdev_id)2120 void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id)
2121 {
2122 ieee80211_iterate_active_interfaces_atomic(ar->hw,
2123 ATH10K_ITER_NORMAL_FLAGS,
2124 ath10k_mac_handle_beacon_miss_iter,
2125 &vdev_id);
2126 }
2127
ath10k_mac_vif_sta_connection_loss_work(struct work_struct * work)2128 static void ath10k_mac_vif_sta_connection_loss_work(struct work_struct *work)
2129 {
2130 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
2131 connection_loss_work.work);
2132 struct ieee80211_vif *vif = arvif->vif;
2133
2134 if (!arvif->is_up)
2135 return;
2136
2137 ieee80211_connection_loss(vif);
2138 }
2139
2140 /**********************/
2141 /* Station management */
2142 /**********************/
2143
ath10k_peer_assoc_h_listen_intval(struct ath10k * ar,struct ieee80211_vif * vif)2144 static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
2145 struct ieee80211_vif *vif)
2146 {
2147 /* Some firmware revisions have unstable STA powersave when listen
2148 * interval is set too high (e.g. 5). The symptoms are firmware doesn't
2149 * generate NullFunc frames properly even if buffered frames have been
2150 * indicated in Beacon TIM. Firmware would seldom wake up to pull
2151 * buffered frames. Often pinging the device from AP would simply fail.
2152 *
2153 * As a workaround set it to 1.
2154 */
2155 if (vif->type == NL80211_IFTYPE_STATION)
2156 return 1;
2157
2158 return ar->hw->conf.listen_interval;
2159 }
2160
ath10k_peer_assoc_h_basic(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2161 static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
2162 struct ieee80211_vif *vif,
2163 struct ieee80211_sta *sta,
2164 struct wmi_peer_assoc_complete_arg *arg)
2165 {
2166 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2167 u32 aid;
2168
2169 lockdep_assert_held(&ar->conf_mutex);
2170
2171 if (vif->type == NL80211_IFTYPE_STATION)
2172 aid = vif->cfg.aid;
2173 else
2174 aid = sta->aid;
2175
2176 ether_addr_copy(arg->addr, sta->addr);
2177 arg->vdev_id = arvif->vdev_id;
2178 arg->peer_aid = aid;
2179 arg->peer_flags |= arvif->ar->wmi.peer_flags->auth;
2180 arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
2181 arg->peer_num_spatial_streams = 1;
2182 arg->peer_caps = vif->bss_conf.assoc_capability;
2183 }
2184
ath10k_peer_assoc_h_crypto(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2185 static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
2186 struct ieee80211_vif *vif,
2187 struct ieee80211_sta *sta,
2188 struct wmi_peer_assoc_complete_arg *arg)
2189 {
2190 struct ieee80211_bss_conf *info = &vif->bss_conf;
2191 struct cfg80211_chan_def def;
2192 struct cfg80211_bss *bss;
2193 const u8 *rsnie = NULL;
2194 const u8 *wpaie = NULL;
2195
2196 lockdep_assert_held(&ar->conf_mutex);
2197
2198 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2199 return;
2200
2201 bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid,
2202 vif->cfg.ssid_len ? vif->cfg.ssid : NULL,
2203 vif->cfg.ssid_len,
2204 IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
2205 if (bss) {
2206 const struct cfg80211_bss_ies *ies;
2207
2208 rcu_read_lock();
2209 rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
2210
2211 ies = rcu_dereference(bss->ies);
2212
2213 wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
2214 WLAN_OUI_TYPE_MICROSOFT_WPA,
2215 ies->data,
2216 ies->len);
2217 rcu_read_unlock();
2218 cfg80211_put_bss(ar->hw->wiphy, bss);
2219 }
2220
2221 /* FIXME: base on RSN IE/WPA IE is a correct idea? */
2222 if (rsnie || wpaie) {
2223 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
2224 arg->peer_flags |= ar->wmi.peer_flags->need_ptk_4_way;
2225 }
2226
2227 if (wpaie) {
2228 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
2229 arg->peer_flags |= ar->wmi.peer_flags->need_gtk_2_way;
2230 }
2231
2232 if (sta->mfp &&
2233 test_bit(ATH10K_FW_FEATURE_MFP_SUPPORT,
2234 ar->running_fw->fw_file.fw_features)) {
2235 arg->peer_flags |= ar->wmi.peer_flags->pmf;
2236 }
2237 }
2238
ath10k_peer_assoc_h_rates(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2239 static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
2240 struct ieee80211_vif *vif,
2241 struct ieee80211_sta *sta,
2242 struct wmi_peer_assoc_complete_arg *arg)
2243 {
2244 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2245 struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
2246 struct cfg80211_chan_def def;
2247 const struct ieee80211_supported_band *sband;
2248 const struct ieee80211_rate *rates;
2249 enum nl80211_band band;
2250 u32 ratemask;
2251 u8 rate;
2252 int i;
2253
2254 lockdep_assert_held(&ar->conf_mutex);
2255
2256 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2257 return;
2258
2259 band = def.chan->band;
2260 sband = ar->hw->wiphy->bands[band];
2261 ratemask = sta->deflink.supp_rates[band];
2262 ratemask &= arvif->bitrate_mask.control[band].legacy;
2263 rates = sband->bitrates;
2264
2265 rateset->num_rates = 0;
2266
2267 for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
2268 if (!(ratemask & 1))
2269 continue;
2270
2271 rate = ath10k_mac_bitrate_to_rate(rates->bitrate);
2272 rateset->rates[rateset->num_rates] = rate;
2273 rateset->num_rates++;
2274 }
2275 }
2276
2277 static bool
ath10k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])2278 ath10k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
2279 {
2280 int nss;
2281
2282 for (nss = 0; nss < IEEE80211_HT_MCS_MASK_LEN; nss++)
2283 if (ht_mcs_mask[nss])
2284 return false;
2285
2286 return true;
2287 }
2288
2289 static bool
ath10k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])2290 ath10k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
2291 {
2292 int nss;
2293
2294 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++)
2295 if (vht_mcs_mask[nss])
2296 return false;
2297
2298 return true;
2299 }
2300
ath10k_peer_assoc_h_ht(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2301 static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
2302 struct ieee80211_vif *vif,
2303 struct ieee80211_sta *sta,
2304 struct wmi_peer_assoc_complete_arg *arg)
2305 {
2306 const struct ieee80211_sta_ht_cap *ht_cap = &sta->deflink.ht_cap;
2307 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2308 struct cfg80211_chan_def def;
2309 enum nl80211_band band;
2310 const u8 *ht_mcs_mask;
2311 const u16 *vht_mcs_mask;
2312 int i, n;
2313 u8 max_nss;
2314 u32 stbc;
2315
2316 lockdep_assert_held(&ar->conf_mutex);
2317
2318 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2319 return;
2320
2321 if (!ht_cap->ht_supported)
2322 return;
2323
2324 band = def.chan->band;
2325 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2326 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2327
2328 if (ath10k_peer_assoc_h_ht_masked(ht_mcs_mask) &&
2329 ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2330 return;
2331
2332 arg->peer_flags |= ar->wmi.peer_flags->ht;
2333 arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2334 ht_cap->ampdu_factor)) - 1;
2335
2336 arg->peer_mpdu_density =
2337 ath10k_parse_mpdudensity(ht_cap->ampdu_density);
2338
2339 arg->peer_ht_caps = ht_cap->cap;
2340 arg->peer_rate_caps |= WMI_RC_HT_FLAG;
2341
2342 if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
2343 arg->peer_flags |= ar->wmi.peer_flags->ldbc;
2344
2345 if (sta->deflink.bandwidth >= IEEE80211_STA_RX_BW_40) {
2346 arg->peer_flags |= ar->wmi.peer_flags->bw40;
2347 arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
2348 }
2349
2350 if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
2351 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
2352 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2353
2354 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
2355 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2356 }
2357
2358 if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
2359 arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
2360 arg->peer_flags |= ar->wmi.peer_flags->stbc;
2361 }
2362
2363 if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
2364 stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
2365 stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
2366 stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
2367 arg->peer_rate_caps |= stbc;
2368 arg->peer_flags |= ar->wmi.peer_flags->stbc;
2369 }
2370
2371 if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
2372 arg->peer_rate_caps |= WMI_RC_TS_FLAG;
2373 else if (ht_cap->mcs.rx_mask[1])
2374 arg->peer_rate_caps |= WMI_RC_DS_FLAG;
2375
2376 for (i = 0, n = 0, max_nss = 0; i < IEEE80211_HT_MCS_MASK_LEN * 8; i++)
2377 if ((ht_cap->mcs.rx_mask[i / 8] & BIT(i % 8)) &&
2378 (ht_mcs_mask[i / 8] & BIT(i % 8))) {
2379 max_nss = (i / 8) + 1;
2380 arg->peer_ht_rates.rates[n++] = i;
2381 }
2382
2383 /*
2384 * This is a workaround for HT-enabled STAs which break the spec
2385 * and have no HT capabilities RX mask (no HT RX MCS map).
2386 *
2387 * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
2388 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
2389 *
2390 * Firmware asserts if such situation occurs.
2391 */
2392 if (n == 0) {
2393 arg->peer_ht_rates.num_rates = 8;
2394 for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
2395 arg->peer_ht_rates.rates[i] = i;
2396 } else {
2397 arg->peer_ht_rates.num_rates = n;
2398 arg->peer_num_spatial_streams = min(sta->deflink.rx_nss,
2399 max_nss);
2400 }
2401
2402 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
2403 arg->addr,
2404 arg->peer_ht_rates.num_rates,
2405 arg->peer_num_spatial_streams);
2406 }
2407
ath10k_peer_assoc_qos_ap(struct ath10k * ar,struct ath10k_vif * arvif,struct ieee80211_sta * sta)2408 static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
2409 struct ath10k_vif *arvif,
2410 struct ieee80211_sta *sta)
2411 {
2412 u32 uapsd = 0;
2413 u32 max_sp = 0;
2414 int ret = 0;
2415
2416 lockdep_assert_held(&ar->conf_mutex);
2417
2418 if (sta->wme && sta->uapsd_queues) {
2419 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
2420 sta->uapsd_queues, sta->max_sp);
2421
2422 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
2423 uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
2424 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
2425 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
2426 uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
2427 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
2428 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
2429 uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
2430 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
2431 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
2432 uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
2433 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
2434
2435 if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
2436 max_sp = sta->max_sp;
2437
2438 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2439 sta->addr,
2440 WMI_AP_PS_PEER_PARAM_UAPSD,
2441 uapsd);
2442 if (ret) {
2443 ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
2444 arvif->vdev_id, ret);
2445 return ret;
2446 }
2447
2448 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2449 sta->addr,
2450 WMI_AP_PS_PEER_PARAM_MAX_SP,
2451 max_sp);
2452 if (ret) {
2453 ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
2454 arvif->vdev_id, ret);
2455 return ret;
2456 }
2457
2458 /* TODO setup this based on STA listen interval and
2459 * beacon interval. Currently we don't know
2460 * sta->listen_interval - mac80211 patch required.
2461 * Currently use 10 seconds
2462 */
2463 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
2464 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
2465 10);
2466 if (ret) {
2467 ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
2468 arvif->vdev_id, ret);
2469 return ret;
2470 }
2471 }
2472
2473 return 0;
2474 }
2475
2476 static u16
ath10k_peer_assoc_h_vht_limit(u16 tx_mcs_set,const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])2477 ath10k_peer_assoc_h_vht_limit(u16 tx_mcs_set,
2478 const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])
2479 {
2480 int idx_limit;
2481 int nss;
2482 u16 mcs_map;
2483 u16 mcs;
2484
2485 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
2486 mcs_map = ath10k_mac_get_max_vht_mcs_map(tx_mcs_set, nss) &
2487 vht_mcs_limit[nss];
2488
2489 if (mcs_map)
2490 idx_limit = fls(mcs_map) - 1;
2491 else
2492 idx_limit = -1;
2493
2494 switch (idx_limit) {
2495 case 0:
2496 case 1:
2497 case 2:
2498 case 3:
2499 case 4:
2500 case 5:
2501 case 6:
2502 default:
2503 /* see ath10k_mac_can_set_bitrate_mask() */
2504 WARN_ON(1);
2505 fallthrough;
2506 case -1:
2507 mcs = IEEE80211_VHT_MCS_NOT_SUPPORTED;
2508 break;
2509 case 7:
2510 mcs = IEEE80211_VHT_MCS_SUPPORT_0_7;
2511 break;
2512 case 8:
2513 mcs = IEEE80211_VHT_MCS_SUPPORT_0_8;
2514 break;
2515 case 9:
2516 mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
2517 break;
2518 }
2519
2520 tx_mcs_set &= ~(0x3 << (nss * 2));
2521 tx_mcs_set |= mcs << (nss * 2);
2522 }
2523
2524 return tx_mcs_set;
2525 }
2526
get_160mhz_nss_from_maxrate(int rate)2527 static u32 get_160mhz_nss_from_maxrate(int rate)
2528 {
2529 u32 nss;
2530
2531 switch (rate) {
2532 case 780:
2533 nss = 1;
2534 break;
2535 case 1560:
2536 nss = 2;
2537 break;
2538 case 2106:
2539 nss = 3; /* not support MCS9 from spec*/
2540 break;
2541 case 3120:
2542 nss = 4;
2543 break;
2544 default:
2545 nss = 1;
2546 }
2547
2548 return nss;
2549 }
2550
ath10k_peer_assoc_h_vht(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2551 static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
2552 struct ieee80211_vif *vif,
2553 struct ieee80211_sta *sta,
2554 struct wmi_peer_assoc_complete_arg *arg)
2555 {
2556 const struct ieee80211_sta_vht_cap *vht_cap = &sta->deflink.vht_cap;
2557 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2558 struct ath10k_hw_params *hw = &ar->hw_params;
2559 struct cfg80211_chan_def def;
2560 enum nl80211_band band;
2561 const u16 *vht_mcs_mask;
2562 u8 ampdu_factor;
2563 u8 max_nss, vht_mcs;
2564 int i;
2565
2566 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2567 return;
2568
2569 if (!vht_cap->vht_supported)
2570 return;
2571
2572 band = def.chan->band;
2573 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2574
2575 if (ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2576 return;
2577
2578 arg->peer_flags |= ar->wmi.peer_flags->vht;
2579
2580 if (def.chan->band == NL80211_BAND_2GHZ)
2581 arg->peer_flags |= ar->wmi.peer_flags->vht_2g;
2582
2583 arg->peer_vht_caps = vht_cap->cap;
2584
2585 ampdu_factor = (vht_cap->cap &
2586 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
2587 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
2588
2589 /* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
2590 * zero in VHT IE. Using it would result in degraded throughput.
2591 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
2592 * it if VHT max_mpdu is smaller.
2593 */
2594 arg->peer_max_mpdu = max(arg->peer_max_mpdu,
2595 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2596 ampdu_factor)) - 1);
2597
2598 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_80)
2599 arg->peer_flags |= ar->wmi.peer_flags->bw80;
2600
2601 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_160)
2602 arg->peer_flags |= ar->wmi.peer_flags->bw160;
2603
2604 /* Calculate peer NSS capability from VHT capabilities if STA
2605 * supports VHT.
2606 */
2607 for (i = 0, max_nss = 0, vht_mcs = 0; i < NL80211_VHT_NSS_MAX; i++) {
2608 vht_mcs = __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) >>
2609 (2 * i) & 3;
2610
2611 if ((vht_mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED) &&
2612 vht_mcs_mask[i])
2613 max_nss = i + 1;
2614 }
2615 arg->peer_num_spatial_streams = min(sta->deflink.rx_nss, max_nss);
2616 arg->peer_vht_rates.rx_max_rate =
2617 __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
2618 arg->peer_vht_rates.rx_mcs_set =
2619 __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
2620 arg->peer_vht_rates.tx_max_rate =
2621 __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
2622 arg->peer_vht_rates.tx_mcs_set = ath10k_peer_assoc_h_vht_limit(
2623 __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask);
2624
2625 /* Configure bandwidth-NSS mapping to FW
2626 * for the chip's tx chains setting on 160Mhz bw
2627 */
2628 if (arg->peer_phymode == MODE_11AC_VHT160 ||
2629 arg->peer_phymode == MODE_11AC_VHT80_80) {
2630 u32 rx_nss;
2631 u32 max_rate;
2632
2633 max_rate = arg->peer_vht_rates.rx_max_rate;
2634 rx_nss = get_160mhz_nss_from_maxrate(max_rate);
2635
2636 if (rx_nss == 0)
2637 rx_nss = arg->peer_num_spatial_streams;
2638 else
2639 rx_nss = min(arg->peer_num_spatial_streams, rx_nss);
2640
2641 max_rate = hw->vht160_mcs_tx_highest;
2642 rx_nss = min(rx_nss, get_160mhz_nss_from_maxrate(max_rate));
2643
2644 arg->peer_bw_rxnss_override =
2645 FIELD_PREP(WMI_PEER_NSS_MAP_ENABLE, 1) |
2646 FIELD_PREP(WMI_PEER_NSS_160MHZ_MASK, (rx_nss - 1));
2647
2648 if (arg->peer_phymode == MODE_11AC_VHT80_80) {
2649 arg->peer_bw_rxnss_override |=
2650 FIELD_PREP(WMI_PEER_NSS_80_80MHZ_MASK, (rx_nss - 1));
2651 }
2652 }
2653 ath10k_dbg(ar, ATH10K_DBG_MAC,
2654 "mac vht peer %pM max_mpdu %d flags 0x%x peer_rx_nss_override 0x%x\n",
2655 sta->addr, arg->peer_max_mpdu,
2656 arg->peer_flags, arg->peer_bw_rxnss_override);
2657 }
2658
ath10k_peer_assoc_h_qos(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2659 static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
2660 struct ieee80211_vif *vif,
2661 struct ieee80211_sta *sta,
2662 struct wmi_peer_assoc_complete_arg *arg)
2663 {
2664 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2665
2666 switch (arvif->vdev_type) {
2667 case WMI_VDEV_TYPE_AP:
2668 if (sta->wme)
2669 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2670
2671 if (sta->wme && sta->uapsd_queues) {
2672 arg->peer_flags |= arvif->ar->wmi.peer_flags->apsd;
2673 arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
2674 }
2675 break;
2676 case WMI_VDEV_TYPE_STA:
2677 if (sta->wme)
2678 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2679 break;
2680 case WMI_VDEV_TYPE_IBSS:
2681 if (sta->wme)
2682 arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2683 break;
2684 default:
2685 break;
2686 }
2687
2688 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM qos %d\n",
2689 sta->addr, !!(arg->peer_flags &
2690 arvif->ar->wmi.peer_flags->qos));
2691 }
2692
ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta * sta)2693 static bool ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
2694 {
2695 return sta->deflink.supp_rates[NL80211_BAND_2GHZ] >>
2696 ATH10K_MAC_FIRST_OFDM_RATE_IDX;
2697 }
2698
ath10k_mac_get_phymode_vht(struct ath10k * ar,struct ieee80211_sta * sta)2699 static enum wmi_phy_mode ath10k_mac_get_phymode_vht(struct ath10k *ar,
2700 struct ieee80211_sta *sta)
2701 {
2702 struct ieee80211_sta_vht_cap *vht_cap = &sta->deflink.vht_cap;
2703
2704 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_160) {
2705 switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
2706 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
2707 return MODE_11AC_VHT160;
2708 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
2709 return MODE_11AC_VHT80_80;
2710 default:
2711 /* not sure if this is a valid case? */
2712 return MODE_11AC_VHT160;
2713 }
2714 }
2715
2716 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_80)
2717 return MODE_11AC_VHT80;
2718
2719 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_40)
2720 return MODE_11AC_VHT40;
2721
2722 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_20)
2723 return MODE_11AC_VHT20;
2724
2725 return MODE_UNKNOWN;
2726 }
2727
ath10k_peer_assoc_h_phymode(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2728 static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
2729 struct ieee80211_vif *vif,
2730 struct ieee80211_sta *sta,
2731 struct wmi_peer_assoc_complete_arg *arg)
2732 {
2733 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2734 struct cfg80211_chan_def def;
2735 enum nl80211_band band;
2736 const u8 *ht_mcs_mask;
2737 const u16 *vht_mcs_mask;
2738 enum wmi_phy_mode phymode = MODE_UNKNOWN;
2739
2740 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2741 return;
2742
2743 band = def.chan->band;
2744 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2745 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2746
2747 switch (band) {
2748 case NL80211_BAND_2GHZ:
2749 if (sta->deflink.vht_cap.vht_supported &&
2750 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2751 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_40)
2752 phymode = MODE_11AC_VHT40;
2753 else
2754 phymode = MODE_11AC_VHT20;
2755 } else if (sta->deflink.ht_cap.ht_supported &&
2756 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2757 if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_40)
2758 phymode = MODE_11NG_HT40;
2759 else
2760 phymode = MODE_11NG_HT20;
2761 } else if (ath10k_mac_sta_has_ofdm_only(sta)) {
2762 phymode = MODE_11G;
2763 } else {
2764 phymode = MODE_11B;
2765 }
2766
2767 break;
2768 case NL80211_BAND_5GHZ:
2769 /*
2770 * Check VHT first.
2771 */
2772 if (sta->deflink.vht_cap.vht_supported &&
2773 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2774 phymode = ath10k_mac_get_phymode_vht(ar, sta);
2775 } else if (sta->deflink.ht_cap.ht_supported &&
2776 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2777 if (sta->deflink.bandwidth >= IEEE80211_STA_RX_BW_40)
2778 phymode = MODE_11NA_HT40;
2779 else
2780 phymode = MODE_11NA_HT20;
2781 } else {
2782 phymode = MODE_11A;
2783 }
2784
2785 break;
2786 default:
2787 break;
2788 }
2789
2790 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
2791 sta->addr, ath10k_wmi_phymode_str(phymode));
2792
2793 arg->peer_phymode = phymode;
2794 WARN_ON(phymode == MODE_UNKNOWN);
2795 }
2796
ath10k_peer_assoc_prepare(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct wmi_peer_assoc_complete_arg * arg)2797 static int ath10k_peer_assoc_prepare(struct ath10k *ar,
2798 struct ieee80211_vif *vif,
2799 struct ieee80211_sta *sta,
2800 struct wmi_peer_assoc_complete_arg *arg)
2801 {
2802 lockdep_assert_held(&ar->conf_mutex);
2803
2804 memset(arg, 0, sizeof(*arg));
2805
2806 ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
2807 ath10k_peer_assoc_h_crypto(ar, vif, sta, arg);
2808 ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
2809 ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
2810 ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
2811 ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
2812 ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
2813
2814 return 0;
2815 }
2816
2817 static const u32 ath10k_smps_map[] = {
2818 [WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
2819 [WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
2820 [WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
2821 [WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
2822 };
2823
ath10k_setup_peer_smps(struct ath10k * ar,struct ath10k_vif * arvif,const u8 * addr,const struct ieee80211_sta_ht_cap * ht_cap)2824 static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
2825 const u8 *addr,
2826 const struct ieee80211_sta_ht_cap *ht_cap)
2827 {
2828 int smps;
2829
2830 if (!ht_cap->ht_supported)
2831 return 0;
2832
2833 smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
2834 smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
2835
2836 if (smps >= ARRAY_SIZE(ath10k_smps_map))
2837 return -EINVAL;
2838
2839 return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
2840 ar->wmi.peer_param->smps_state,
2841 ath10k_smps_map[smps]);
2842 }
2843
ath10k_mac_vif_recalc_txbf(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta_vht_cap vht_cap)2844 static int ath10k_mac_vif_recalc_txbf(struct ath10k *ar,
2845 struct ieee80211_vif *vif,
2846 struct ieee80211_sta_vht_cap vht_cap)
2847 {
2848 struct ath10k_vif *arvif = (void *)vif->drv_priv;
2849 int ret;
2850 u32 param;
2851 u32 value;
2852
2853 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_AFTER_ASSOC)
2854 return 0;
2855
2856 if (!(ar->vht_cap_info &
2857 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2858 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
2859 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2860 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
2861 return 0;
2862
2863 param = ar->wmi.vdev_param->txbf;
2864 value = 0;
2865
2866 if (WARN_ON(param == WMI_VDEV_PARAM_UNSUPPORTED))
2867 return 0;
2868
2869 /* The following logic is correct. If a remote STA advertises support
2870 * for being a beamformer then we should enable us being a beamformee.
2871 */
2872
2873 if (ar->vht_cap_info &
2874 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2875 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
2876 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
2877 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2878
2879 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
2880 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
2881 }
2882
2883 if (ar->vht_cap_info &
2884 (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2885 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
2886 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
2887 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2888
2889 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
2890 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
2891 }
2892
2893 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFEE)
2894 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2895
2896 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFER)
2897 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2898
2899 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param, value);
2900 if (ret) {
2901 ath10k_warn(ar, "failed to submit vdev param txbf 0x%x: %d\n",
2902 value, ret);
2903 return ret;
2904 }
2905
2906 return 0;
2907 }
2908
ath10k_mac_is_connected(struct ath10k * ar)2909 static bool ath10k_mac_is_connected(struct ath10k *ar)
2910 {
2911 struct ath10k_vif *arvif;
2912
2913 list_for_each_entry(arvif, &ar->arvifs, list) {
2914 if (arvif->is_up && arvif->vdev_type == WMI_VDEV_TYPE_STA)
2915 return true;
2916 }
2917
2918 return false;
2919 }
2920
ath10k_mac_txpower_setup(struct ath10k * ar,int txpower)2921 static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower)
2922 {
2923 int ret;
2924 u32 param;
2925 int tx_power_2g, tx_power_5g;
2926 bool connected;
2927
2928 lockdep_assert_held(&ar->conf_mutex);
2929
2930 /* ath10k internally uses unit of 0.5 dBm so multiply by 2 */
2931 tx_power_2g = txpower * 2;
2932 tx_power_5g = txpower * 2;
2933
2934 connected = ath10k_mac_is_connected(ar);
2935
2936 if (connected && ar->tx_power_2g_limit)
2937 if (tx_power_2g > ar->tx_power_2g_limit)
2938 tx_power_2g = ar->tx_power_2g_limit;
2939
2940 if (connected && ar->tx_power_5g_limit)
2941 if (tx_power_5g > ar->tx_power_5g_limit)
2942 tx_power_5g = ar->tx_power_5g_limit;
2943
2944 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac txpower 2g: %d, 5g: %d\n",
2945 tx_power_2g, tx_power_5g);
2946
2947 param = ar->wmi.pdev_param->txpower_limit2g;
2948 ret = ath10k_wmi_pdev_set_param(ar, param, tx_power_2g);
2949 if (ret) {
2950 ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
2951 tx_power_2g, ret);
2952 return ret;
2953 }
2954
2955 param = ar->wmi.pdev_param->txpower_limit5g;
2956 ret = ath10k_wmi_pdev_set_param(ar, param, tx_power_5g);
2957 if (ret) {
2958 ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
2959 tx_power_5g, ret);
2960 return ret;
2961 }
2962
2963 return 0;
2964 }
2965
ath10k_mac_txpower_recalc(struct ath10k * ar)2966 static int ath10k_mac_txpower_recalc(struct ath10k *ar)
2967 {
2968 struct ath10k_vif *arvif;
2969 int ret, txpower = -1;
2970
2971 lockdep_assert_held(&ar->conf_mutex);
2972
2973 list_for_each_entry(arvif, &ar->arvifs, list) {
2974 /* txpower not initialized yet? */
2975 if (arvif->txpower == INT_MIN)
2976 continue;
2977
2978 if (txpower == -1)
2979 txpower = arvif->txpower;
2980 else
2981 txpower = min(txpower, arvif->txpower);
2982 }
2983
2984 if (txpower == -1)
2985 return 0;
2986
2987 ret = ath10k_mac_txpower_setup(ar, txpower);
2988 if (ret) {
2989 ath10k_warn(ar, "failed to setup tx power %d: %d\n",
2990 txpower, ret);
2991 return ret;
2992 }
2993
2994 return 0;
2995 }
2996
ath10k_mac_set_sar_power(struct ath10k * ar)2997 static int ath10k_mac_set_sar_power(struct ath10k *ar)
2998 {
2999 if (!ar->hw_params.dynamic_sar_support)
3000 return -EOPNOTSUPP;
3001
3002 if (!ath10k_mac_is_connected(ar))
3003 return 0;
3004
3005 /* if connected, then arvif->txpower must be valid */
3006 return ath10k_mac_txpower_recalc(ar);
3007 }
3008
ath10k_mac_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)3009 static int ath10k_mac_set_sar_specs(struct ieee80211_hw *hw,
3010 const struct cfg80211_sar_specs *sar)
3011 {
3012 const struct cfg80211_sar_sub_specs *sub_specs;
3013 struct ath10k *ar = hw->priv;
3014 u32 i;
3015 int ret;
3016
3017 mutex_lock(&ar->conf_mutex);
3018
3019 if (!ar->hw_params.dynamic_sar_support) {
3020 ret = -EOPNOTSUPP;
3021 goto err;
3022 }
3023
3024 if (!sar || sar->type != NL80211_SAR_TYPE_POWER ||
3025 sar->num_sub_specs == 0) {
3026 ret = -EINVAL;
3027 goto err;
3028 }
3029
3030 sub_specs = sar->sub_specs;
3031
3032 /* 0dbm is not a practical value for ath10k, so use 0
3033 * as no SAR limitation on it.
3034 */
3035 ar->tx_power_2g_limit = 0;
3036 ar->tx_power_5g_limit = 0;
3037
3038 /* note the power is in 0.25dbm unit, while ath10k uses
3039 * 0.5dbm unit.
3040 */
3041 for (i = 0; i < sar->num_sub_specs; i++) {
3042 if (sub_specs->freq_range_index == 0)
3043 ar->tx_power_2g_limit = sub_specs->power / 2;
3044 else if (sub_specs->freq_range_index == 1)
3045 ar->tx_power_5g_limit = sub_specs->power / 2;
3046
3047 sub_specs++;
3048 }
3049
3050 ret = ath10k_mac_set_sar_power(ar);
3051 if (ret) {
3052 ath10k_warn(ar, "failed to set sar power: %d", ret);
3053 goto err;
3054 }
3055
3056 err:
3057 mutex_unlock(&ar->conf_mutex);
3058 return ret;
3059 }
3060
3061 /* can be called only in mac80211 callbacks due to `key_count` usage */
ath10k_bss_assoc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf)3062 static void ath10k_bss_assoc(struct ieee80211_hw *hw,
3063 struct ieee80211_vif *vif,
3064 struct ieee80211_bss_conf *bss_conf)
3065 {
3066 struct ath10k *ar = hw->priv;
3067 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3068 struct ieee80211_sta_ht_cap ht_cap;
3069 struct ieee80211_sta_vht_cap vht_cap;
3070 struct wmi_peer_assoc_complete_arg peer_arg;
3071 struct ieee80211_sta *ap_sta;
3072 int ret;
3073
3074 lockdep_assert_held(&ar->conf_mutex);
3075
3076 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
3077 arvif->vdev_id, arvif->bssid, arvif->aid);
3078
3079 rcu_read_lock();
3080
3081 ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
3082 if (!ap_sta) {
3083 ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
3084 bss_conf->bssid, arvif->vdev_id);
3085 rcu_read_unlock();
3086 return;
3087 }
3088
3089 /* ap_sta must be accessed only within rcu section which must be left
3090 * before calling ath10k_setup_peer_smps() which might sleep.
3091 */
3092 ht_cap = ap_sta->deflink.ht_cap;
3093 vht_cap = ap_sta->deflink.vht_cap;
3094
3095 ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
3096 if (ret) {
3097 ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
3098 bss_conf->bssid, arvif->vdev_id, ret);
3099 rcu_read_unlock();
3100 return;
3101 }
3102
3103 rcu_read_unlock();
3104
3105 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
3106 if (ret) {
3107 ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
3108 bss_conf->bssid, arvif->vdev_id, ret);
3109 return;
3110 }
3111
3112 ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
3113 if (ret) {
3114 ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
3115 arvif->vdev_id, ret);
3116 return;
3117 }
3118
3119 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
3120 if (ret) {
3121 ath10k_warn(ar, "failed to recalc txbf for vdev %i on bss %pM: %d\n",
3122 arvif->vdev_id, bss_conf->bssid, ret);
3123 return;
3124 }
3125
3126 ath10k_dbg(ar, ATH10K_DBG_MAC,
3127 "mac vdev %d up (associated) bssid %pM aid %d\n",
3128 arvif->vdev_id, bss_conf->bssid, vif->cfg.aid);
3129
3130 WARN_ON(arvif->is_up);
3131
3132 arvif->aid = vif->cfg.aid;
3133 ether_addr_copy(arvif->bssid, bss_conf->bssid);
3134
3135 ret = ath10k_wmi_pdev_set_param(ar,
3136 ar->wmi.pdev_param->peer_stats_info_enable, 1);
3137 if (ret)
3138 ath10k_warn(ar, "failed to enable peer stats info: %d\n", ret);
3139
3140 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
3141 if (ret) {
3142 ath10k_warn(ar, "failed to set vdev %d up: %d\n",
3143 arvif->vdev_id, ret);
3144 return;
3145 }
3146
3147 arvif->is_up = true;
3148
3149 ath10k_mac_set_sar_power(ar);
3150
3151 /* Workaround: Some firmware revisions (tested with qca6174
3152 * WLAN.RM.2.0-00073) have buggy powersave state machine and must be
3153 * poked with peer param command.
3154 */
3155 ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, arvif->bssid,
3156 ar->wmi.peer_param->dummy_var, 1);
3157 if (ret) {
3158 ath10k_warn(ar, "failed to poke peer %pM param for ps workaround on vdev %i: %d\n",
3159 arvif->bssid, arvif->vdev_id, ret);
3160 return;
3161 }
3162 }
3163
ath10k_bss_disassoc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3164 static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
3165 struct ieee80211_vif *vif)
3166 {
3167 struct ath10k *ar = hw->priv;
3168 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3169 struct ieee80211_sta_vht_cap vht_cap = {};
3170 int ret;
3171
3172 lockdep_assert_held(&ar->conf_mutex);
3173
3174 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
3175 arvif->vdev_id, arvif->bssid);
3176
3177 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
3178 if (ret)
3179 ath10k_warn(ar, "failed to down vdev %i: %d\n",
3180 arvif->vdev_id, ret);
3181
3182 arvif->def_wep_key_idx = -1;
3183
3184 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
3185 if (ret) {
3186 ath10k_warn(ar, "failed to recalc txbf for vdev %i: %d\n",
3187 arvif->vdev_id, ret);
3188 return;
3189 }
3190
3191 arvif->is_up = false;
3192
3193 ath10k_mac_txpower_recalc(ar);
3194
3195 cancel_delayed_work_sync(&arvif->connection_loss_work);
3196 }
3197
ath10k_new_peer_tid_config(struct ath10k * ar,struct ieee80211_sta * sta,struct ath10k_vif * arvif)3198 static int ath10k_new_peer_tid_config(struct ath10k *ar,
3199 struct ieee80211_sta *sta,
3200 struct ath10k_vif *arvif)
3201 {
3202 struct wmi_per_peer_per_tid_cfg_arg arg = {};
3203 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
3204 bool config_apply;
3205 int ret, i;
3206
3207 for (i = 0; i < ATH10K_TID_MAX; i++) {
3208 config_apply = false;
3209 if (arvif->retry_long[i] || arvif->ampdu[i] ||
3210 arvif->rate_ctrl[i] || arvif->rtscts[i]) {
3211 config_apply = true;
3212 arg.tid = i;
3213 arg.vdev_id = arvif->vdev_id;
3214 arg.retry_count = arvif->retry_long[i];
3215 arg.aggr_control = arvif->ampdu[i];
3216 arg.rate_ctrl = arvif->rate_ctrl[i];
3217 arg.rcode_flags = arvif->rate_code[i];
3218
3219 if (arvif->rtscts[i])
3220 arg.ext_tid_cfg_bitmap =
3221 WMI_EXT_TID_RTS_CTS_CONFIG;
3222 else
3223 arg.ext_tid_cfg_bitmap = 0;
3224
3225 arg.rtscts_ctrl = arvif->rtscts[i];
3226 }
3227
3228 if (arvif->noack[i]) {
3229 arg.ack_policy = arvif->noack[i];
3230 arg.rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE;
3231 arg.aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
3232 config_apply = true;
3233 }
3234
3235 /* Assign default value(-1) to newly connected station.
3236 * This is to identify station specific tid configuration not
3237 * configured for the station.
3238 */
3239 arsta->retry_long[i] = -1;
3240 arsta->noack[i] = -1;
3241 arsta->ampdu[i] = -1;
3242
3243 if (!config_apply)
3244 continue;
3245
3246 ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
3247
3248 ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
3249 if (ret) {
3250 ath10k_warn(ar, "failed to set per tid retry/aggr config for sta %pM: %d\n",
3251 sta->addr, ret);
3252 return ret;
3253 }
3254
3255 memset(&arg, 0, sizeof(arg));
3256 }
3257
3258 return 0;
3259 }
3260
ath10k_station_assoc(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool reassoc)3261 static int ath10k_station_assoc(struct ath10k *ar,
3262 struct ieee80211_vif *vif,
3263 struct ieee80211_sta *sta,
3264 bool reassoc)
3265 {
3266 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3267 struct wmi_peer_assoc_complete_arg peer_arg;
3268 int ret = 0;
3269
3270 lockdep_assert_held(&ar->conf_mutex);
3271
3272 ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
3273 if (ret) {
3274 ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
3275 sta->addr, arvif->vdev_id, ret);
3276 return ret;
3277 }
3278
3279 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
3280 if (ret) {
3281 ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
3282 sta->addr, arvif->vdev_id, ret);
3283 return ret;
3284 }
3285
3286 /* Re-assoc is run only to update supported rates for given station. It
3287 * doesn't make much sense to reconfigure the peer completely.
3288 */
3289 if (!reassoc) {
3290 ret = ath10k_setup_peer_smps(ar, arvif, sta->addr,
3291 &sta->deflink.ht_cap);
3292 if (ret) {
3293 ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
3294 arvif->vdev_id, ret);
3295 return ret;
3296 }
3297
3298 ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
3299 if (ret) {
3300 ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
3301 sta->addr, arvif->vdev_id, ret);
3302 return ret;
3303 }
3304
3305 if (!sta->wme) {
3306 arvif->num_legacy_stations++;
3307 ret = ath10k_recalc_rtscts_prot(arvif);
3308 if (ret) {
3309 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
3310 arvif->vdev_id, ret);
3311 return ret;
3312 }
3313 }
3314
3315 /* Plumb cached keys only for static WEP */
3316 if ((arvif->def_wep_key_idx != -1) && (!sta->tdls)) {
3317 ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
3318 if (ret) {
3319 ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
3320 arvif->vdev_id, ret);
3321 return ret;
3322 }
3323 }
3324 }
3325
3326 if (!test_bit(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, ar->wmi.svc_map))
3327 return ret;
3328
3329 return ath10k_new_peer_tid_config(ar, sta, arvif);
3330 }
3331
ath10k_station_disassoc(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3332 static int ath10k_station_disassoc(struct ath10k *ar,
3333 struct ieee80211_vif *vif,
3334 struct ieee80211_sta *sta)
3335 {
3336 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3337 int ret = 0;
3338
3339 lockdep_assert_held(&ar->conf_mutex);
3340
3341 if (!sta->wme) {
3342 arvif->num_legacy_stations--;
3343 ret = ath10k_recalc_rtscts_prot(arvif);
3344 if (ret) {
3345 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
3346 arvif->vdev_id, ret);
3347 return ret;
3348 }
3349 }
3350
3351 ret = ath10k_clear_peer_keys(arvif, sta->addr);
3352 if (ret) {
3353 ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
3354 arvif->vdev_id, ret);
3355 return ret;
3356 }
3357
3358 return ret;
3359 }
3360
3361 /**************/
3362 /* Regulatory */
3363 /**************/
3364
ath10k_update_channel_list(struct ath10k * ar)3365 static int ath10k_update_channel_list(struct ath10k *ar)
3366 {
3367 struct ieee80211_hw *hw = ar->hw;
3368 struct ieee80211_supported_band **bands;
3369 enum nl80211_band band;
3370 struct ieee80211_channel *channel;
3371 struct wmi_scan_chan_list_arg arg = {0};
3372 struct wmi_channel_arg *ch;
3373 bool passive;
3374 int len;
3375 int ret;
3376 int i;
3377
3378 lockdep_assert_held(&ar->conf_mutex);
3379
3380 bands = hw->wiphy->bands;
3381 for (band = 0; band < NUM_NL80211_BANDS; band++) {
3382 if (!bands[band])
3383 continue;
3384
3385 for (i = 0; i < bands[band]->n_channels; i++) {
3386 if (bands[band]->channels[i].flags &
3387 IEEE80211_CHAN_DISABLED)
3388 continue;
3389
3390 arg.n_channels++;
3391 }
3392 }
3393
3394 len = sizeof(struct wmi_channel_arg) * arg.n_channels;
3395 arg.channels = kzalloc(len, GFP_KERNEL);
3396 if (!arg.channels)
3397 return -ENOMEM;
3398
3399 ch = arg.channels;
3400 for (band = 0; band < NUM_NL80211_BANDS; band++) {
3401 if (!bands[band])
3402 continue;
3403
3404 for (i = 0; i < bands[band]->n_channels; i++) {
3405 channel = &bands[band]->channels[i];
3406
3407 if (channel->flags & IEEE80211_CHAN_DISABLED)
3408 continue;
3409
3410 ch->allow_ht = true;
3411
3412 /* FIXME: when should we really allow VHT? */
3413 ch->allow_vht = true;
3414
3415 ch->allow_ibss =
3416 !(channel->flags & IEEE80211_CHAN_NO_IR);
3417
3418 ch->ht40plus =
3419 !(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
3420
3421 ch->chan_radar =
3422 !!(channel->flags & IEEE80211_CHAN_RADAR);
3423
3424 passive = channel->flags & IEEE80211_CHAN_NO_IR;
3425 ch->passive = passive;
3426
3427 /* the firmware is ignoring the "radar" flag of the
3428 * channel and is scanning actively using Probe Requests
3429 * on "Radar detection"/DFS channels which are not
3430 * marked as "available"
3431 */
3432 ch->passive |= ch->chan_radar;
3433
3434 ch->freq = channel->center_freq;
3435 ch->band_center_freq1 = channel->center_freq;
3436 ch->min_power = 0;
3437 ch->max_power = channel->max_power * 2;
3438 ch->max_reg_power = channel->max_reg_power * 2;
3439 ch->max_antenna_gain = channel->max_antenna_gain;
3440 ch->reg_class_id = 0; /* FIXME */
3441
3442 /* FIXME: why use only legacy modes, why not any
3443 * HT/VHT modes? Would that even make any
3444 * difference?
3445 */
3446 if (channel->band == NL80211_BAND_2GHZ)
3447 ch->mode = MODE_11G;
3448 else
3449 ch->mode = MODE_11A;
3450
3451 if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
3452 continue;
3453
3454 ath10k_dbg(ar, ATH10K_DBG_WMI,
3455 "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
3456 ch - arg.channels, arg.n_channels,
3457 ch->freq, ch->max_power, ch->max_reg_power,
3458 ch->max_antenna_gain, ch->mode);
3459
3460 ch++;
3461 }
3462 }
3463
3464 ret = ath10k_wmi_scan_chan_list(ar, &arg);
3465 kfree(arg.channels);
3466
3467 return ret;
3468 }
3469
3470 static enum wmi_dfs_region
ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)3471 ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
3472 {
3473 switch (dfs_region) {
3474 case NL80211_DFS_UNSET:
3475 return WMI_UNINIT_DFS_DOMAIN;
3476 case NL80211_DFS_FCC:
3477 return WMI_FCC_DFS_DOMAIN;
3478 case NL80211_DFS_ETSI:
3479 return WMI_ETSI_DFS_DOMAIN;
3480 case NL80211_DFS_JP:
3481 return WMI_MKK4_DFS_DOMAIN;
3482 }
3483 return WMI_UNINIT_DFS_DOMAIN;
3484 }
3485
ath10k_regd_update(struct ath10k * ar)3486 static void ath10k_regd_update(struct ath10k *ar)
3487 {
3488 struct reg_dmn_pair_mapping *regpair;
3489 int ret;
3490 enum wmi_dfs_region wmi_dfs_reg;
3491 enum nl80211_dfs_regions nl_dfs_reg;
3492
3493 lockdep_assert_held(&ar->conf_mutex);
3494
3495 ret = ath10k_update_channel_list(ar);
3496 if (ret)
3497 ath10k_warn(ar, "failed to update channel list: %d\n", ret);
3498
3499 regpair = ar->ath_common.regulatory.regpair;
3500
3501 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3502 nl_dfs_reg = ar->dfs_detector->region;
3503 wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
3504 } else {
3505 wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
3506 }
3507
3508 /* Target allows setting up per-band regdomain but ath_common provides
3509 * a combined one only
3510 */
3511 ret = ath10k_wmi_pdev_set_regdomain(ar,
3512 regpair->reg_domain,
3513 regpair->reg_domain, /* 2ghz */
3514 regpair->reg_domain, /* 5ghz */
3515 regpair->reg_2ghz_ctl,
3516 regpair->reg_5ghz_ctl,
3517 wmi_dfs_reg);
3518 if (ret)
3519 ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
3520 }
3521
ath10k_mac_update_channel_list(struct ath10k * ar,struct ieee80211_supported_band * band)3522 static void ath10k_mac_update_channel_list(struct ath10k *ar,
3523 struct ieee80211_supported_band *band)
3524 {
3525 int i;
3526
3527 if (ar->low_5ghz_chan && ar->high_5ghz_chan) {
3528 for (i = 0; i < band->n_channels; i++) {
3529 if (band->channels[i].center_freq < ar->low_5ghz_chan ||
3530 band->channels[i].center_freq > ar->high_5ghz_chan)
3531 band->channels[i].flags |=
3532 IEEE80211_CHAN_DISABLED;
3533 }
3534 }
3535 }
3536
ath10k_reg_notifier(struct wiphy * wiphy,struct regulatory_request * request)3537 static void ath10k_reg_notifier(struct wiphy *wiphy,
3538 struct regulatory_request *request)
3539 {
3540 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
3541 struct ath10k *ar = hw->priv;
3542 bool result;
3543
3544 ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
3545
3546 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3547 ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
3548 request->dfs_region);
3549 result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
3550 request->dfs_region);
3551 if (!result)
3552 ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
3553 request->dfs_region);
3554 }
3555
3556 mutex_lock(&ar->conf_mutex);
3557 if (ar->state == ATH10K_STATE_ON)
3558 ath10k_regd_update(ar);
3559 mutex_unlock(&ar->conf_mutex);
3560
3561 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
3562 ath10k_mac_update_channel_list(ar,
3563 ar->hw->wiphy->bands[NL80211_BAND_5GHZ]);
3564 }
3565
ath10k_stop_radar_confirmation(struct ath10k * ar)3566 static void ath10k_stop_radar_confirmation(struct ath10k *ar)
3567 {
3568 spin_lock_bh(&ar->data_lock);
3569 ar->radar_conf_state = ATH10K_RADAR_CONFIRMATION_STOPPED;
3570 spin_unlock_bh(&ar->data_lock);
3571
3572 cancel_work_sync(&ar->radar_confirmation_work);
3573 }
3574
3575 /***************/
3576 /* TX handlers */
3577 /***************/
3578
3579 enum ath10k_mac_tx_path {
3580 ATH10K_MAC_TX_HTT,
3581 ATH10K_MAC_TX_HTT_MGMT,
3582 ATH10K_MAC_TX_WMI_MGMT,
3583 ATH10K_MAC_TX_UNKNOWN,
3584 };
3585
ath10k_mac_tx_lock(struct ath10k * ar,int reason)3586 void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
3587 {
3588 lockdep_assert_held(&ar->htt.tx_lock);
3589
3590 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
3591 ar->tx_paused |= BIT(reason);
3592 ieee80211_stop_queues(ar->hw);
3593 }
3594
ath10k_mac_tx_unlock_iter(void * data,u8 * mac,struct ieee80211_vif * vif)3595 static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
3596 struct ieee80211_vif *vif)
3597 {
3598 struct ath10k *ar = data;
3599 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3600
3601 if (arvif->tx_paused)
3602 return;
3603
3604 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3605 }
3606
ath10k_mac_tx_unlock(struct ath10k * ar,int reason)3607 void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
3608 {
3609 lockdep_assert_held(&ar->htt.tx_lock);
3610
3611 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
3612 ar->tx_paused &= ~BIT(reason);
3613
3614 if (ar->tx_paused)
3615 return;
3616
3617 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3618 ATH10K_ITER_RESUME_FLAGS,
3619 ath10k_mac_tx_unlock_iter,
3620 ar);
3621
3622 ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
3623 }
3624
ath10k_mac_vif_tx_lock(struct ath10k_vif * arvif,int reason)3625 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
3626 {
3627 struct ath10k *ar = arvif->ar;
3628
3629 lockdep_assert_held(&ar->htt.tx_lock);
3630
3631 WARN_ON(reason >= BITS_PER_LONG);
3632 arvif->tx_paused |= BIT(reason);
3633 ieee80211_stop_queue(ar->hw, arvif->vdev_id);
3634 }
3635
ath10k_mac_vif_tx_unlock(struct ath10k_vif * arvif,int reason)3636 void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason)
3637 {
3638 struct ath10k *ar = arvif->ar;
3639
3640 lockdep_assert_held(&ar->htt.tx_lock);
3641
3642 WARN_ON(reason >= BITS_PER_LONG);
3643 arvif->tx_paused &= ~BIT(reason);
3644
3645 if (ar->tx_paused)
3646 return;
3647
3648 if (arvif->tx_paused)
3649 return;
3650
3651 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3652 }
3653
ath10k_mac_vif_handle_tx_pause(struct ath10k_vif * arvif,enum wmi_tlv_tx_pause_id pause_id,enum wmi_tlv_tx_pause_action action)3654 static void ath10k_mac_vif_handle_tx_pause(struct ath10k_vif *arvif,
3655 enum wmi_tlv_tx_pause_id pause_id,
3656 enum wmi_tlv_tx_pause_action action)
3657 {
3658 struct ath10k *ar = arvif->ar;
3659
3660 lockdep_assert_held(&ar->htt.tx_lock);
3661
3662 switch (action) {
3663 case WMI_TLV_TX_PAUSE_ACTION_STOP:
3664 ath10k_mac_vif_tx_lock(arvif, pause_id);
3665 break;
3666 case WMI_TLV_TX_PAUSE_ACTION_WAKE:
3667 ath10k_mac_vif_tx_unlock(arvif, pause_id);
3668 break;
3669 default:
3670 ath10k_dbg(ar, ATH10K_DBG_BOOT,
3671 "received unknown tx pause action %d on vdev %i, ignoring\n",
3672 action, arvif->vdev_id);
3673 break;
3674 }
3675 }
3676
3677 struct ath10k_mac_tx_pause {
3678 u32 vdev_id;
3679 enum wmi_tlv_tx_pause_id pause_id;
3680 enum wmi_tlv_tx_pause_action action;
3681 };
3682
ath10k_mac_handle_tx_pause_iter(void * data,u8 * mac,struct ieee80211_vif * vif)3683 static void ath10k_mac_handle_tx_pause_iter(void *data, u8 *mac,
3684 struct ieee80211_vif *vif)
3685 {
3686 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3687 struct ath10k_mac_tx_pause *arg = data;
3688
3689 if (arvif->vdev_id != arg->vdev_id)
3690 return;
3691
3692 ath10k_mac_vif_handle_tx_pause(arvif, arg->pause_id, arg->action);
3693 }
3694
ath10k_mac_handle_tx_pause_vdev(struct ath10k * ar,u32 vdev_id,enum wmi_tlv_tx_pause_id pause_id,enum wmi_tlv_tx_pause_action action)3695 void ath10k_mac_handle_tx_pause_vdev(struct ath10k *ar, u32 vdev_id,
3696 enum wmi_tlv_tx_pause_id pause_id,
3697 enum wmi_tlv_tx_pause_action action)
3698 {
3699 struct ath10k_mac_tx_pause arg = {
3700 .vdev_id = vdev_id,
3701 .pause_id = pause_id,
3702 .action = action,
3703 };
3704
3705 spin_lock_bh(&ar->htt.tx_lock);
3706 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3707 ATH10K_ITER_RESUME_FLAGS,
3708 ath10k_mac_handle_tx_pause_iter,
3709 &arg);
3710 spin_unlock_bh(&ar->htt.tx_lock);
3711 }
3712
3713 static enum ath10k_hw_txrx_mode
ath10k_mac_tx_h_get_txmode(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct sk_buff * skb)3714 ath10k_mac_tx_h_get_txmode(struct ath10k *ar,
3715 struct ieee80211_vif *vif,
3716 struct ieee80211_sta *sta,
3717 struct sk_buff *skb)
3718 {
3719 const struct ieee80211_hdr *hdr = (void *)skb->data;
3720 const struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
3721 __le16 fc = hdr->frame_control;
3722
3723 if (IEEE80211_SKB_CB(skb)->flags & IEEE80211_TX_CTL_HW_80211_ENCAP)
3724 return ATH10K_HW_TXRX_ETHERNET;
3725
3726 if (!vif || vif->type == NL80211_IFTYPE_MONITOR)
3727 return ATH10K_HW_TXRX_RAW;
3728
3729 if (ieee80211_is_mgmt(fc))
3730 return ATH10K_HW_TXRX_MGMT;
3731
3732 /* Workaround:
3733 *
3734 * NullFunc frames are mostly used to ping if a client or AP are still
3735 * reachable and responsive. This implies tx status reports must be
3736 * accurate - otherwise either mac80211 or userspace (e.g. hostapd) can
3737 * come to a conclusion that the other end disappeared and tear down
3738 * BSS connection or it can never disconnect from BSS/client (which is
3739 * the case).
3740 *
3741 * Firmware with HTT older than 3.0 delivers incorrect tx status for
3742 * NullFunc frames to driver. However there's a HTT Mgmt Tx command
3743 * which seems to deliver correct tx reports for NullFunc frames. The
3744 * downside of using it is it ignores client powersave state so it can
3745 * end up disconnecting sleeping clients in AP mode. It should fix STA
3746 * mode though because AP don't sleep.
3747 */
3748 if (ar->htt.target_version_major < 3 &&
3749 (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
3750 !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3751 ar->running_fw->fw_file.fw_features))
3752 return ATH10K_HW_TXRX_MGMT;
3753
3754 /* Workaround:
3755 *
3756 * Some wmi-tlv firmwares for qca6174 have broken Tx key selection for
3757 * NativeWifi txmode - it selects AP key instead of peer key. It seems
3758 * to work with Ethernet txmode so use it.
3759 *
3760 * FIXME: Check if raw mode works with TDLS.
3761 */
3762 if (ieee80211_is_data_present(fc) && sta && sta->tdls)
3763 return ATH10K_HW_TXRX_ETHERNET;
3764
3765 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags) ||
3766 skb_cb->flags & ATH10K_SKB_F_RAW_TX)
3767 return ATH10K_HW_TXRX_RAW;
3768
3769 return ATH10K_HW_TXRX_NATIVE_WIFI;
3770 }
3771
ath10k_tx_h_use_hwcrypto(struct ieee80211_vif * vif,struct sk_buff * skb)3772 static bool ath10k_tx_h_use_hwcrypto(struct ieee80211_vif *vif,
3773 struct sk_buff *skb)
3774 {
3775 const struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3776 const struct ieee80211_hdr *hdr = (void *)skb->data;
3777 const u32 mask = IEEE80211_TX_INTFL_DONT_ENCRYPT |
3778 IEEE80211_TX_CTL_INJECTED;
3779
3780 if (!ieee80211_has_protected(hdr->frame_control))
3781 return false;
3782
3783 if ((info->flags & mask) == mask)
3784 return false;
3785
3786 if (vif)
3787 return !((struct ath10k_vif *)vif->drv_priv)->nohwcrypt;
3788
3789 return true;
3790 }
3791
3792 /* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
3793 * Control in the header.
3794 */
ath10k_tx_h_nwifi(struct ieee80211_hw * hw,struct sk_buff * skb)3795 static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
3796 {
3797 struct ieee80211_hdr *hdr = (void *)skb->data;
3798 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3799 u8 *qos_ctl;
3800
3801 if (!ieee80211_is_data_qos(hdr->frame_control))
3802 return;
3803
3804 qos_ctl = ieee80211_get_qos_ctl(hdr);
3805 memmove(skb->data + IEEE80211_QOS_CTL_LEN,
3806 skb->data, (void *)qos_ctl - (void *)skb->data);
3807 skb_pull(skb, IEEE80211_QOS_CTL_LEN);
3808
3809 /* Some firmware revisions don't handle sending QoS NullFunc well.
3810 * These frames are mainly used for CQM purposes so it doesn't really
3811 * matter whether QoS NullFunc or NullFunc are sent.
3812 */
3813 hdr = (void *)skb->data;
3814 if (ieee80211_is_qos_nullfunc(hdr->frame_control))
3815 cb->flags &= ~ATH10K_SKB_F_QOS;
3816
3817 hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
3818 }
3819
ath10k_tx_h_8023(struct sk_buff * skb)3820 static void ath10k_tx_h_8023(struct sk_buff *skb)
3821 {
3822 struct ieee80211_hdr *hdr;
3823 struct rfc1042_hdr *rfc1042;
3824 struct ethhdr *eth;
3825 size_t hdrlen;
3826 u8 da[ETH_ALEN];
3827 u8 sa[ETH_ALEN];
3828 __be16 type;
3829
3830 hdr = (void *)skb->data;
3831 hdrlen = ieee80211_hdrlen(hdr->frame_control);
3832 rfc1042 = (void *)skb->data + hdrlen;
3833
3834 ether_addr_copy(da, ieee80211_get_DA(hdr));
3835 ether_addr_copy(sa, ieee80211_get_SA(hdr));
3836 type = rfc1042->snap_type;
3837
3838 skb_pull(skb, hdrlen + sizeof(*rfc1042));
3839 skb_push(skb, sizeof(*eth));
3840
3841 eth = (void *)skb->data;
3842 ether_addr_copy(eth->h_dest, da);
3843 ether_addr_copy(eth->h_source, sa);
3844 eth->h_proto = type;
3845 }
3846
ath10k_tx_h_add_p2p_noa_ie(struct ath10k * ar,struct ieee80211_vif * vif,struct sk_buff * skb)3847 static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
3848 struct ieee80211_vif *vif,
3849 struct sk_buff *skb)
3850 {
3851 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3852 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3853
3854 /* This is case only for P2P_GO */
3855 if (vif->type != NL80211_IFTYPE_AP || !vif->p2p)
3856 return;
3857
3858 if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
3859 spin_lock_bh(&ar->data_lock);
3860 if (arvif->u.ap.noa_data)
3861 if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
3862 GFP_ATOMIC))
3863 skb_put_data(skb, arvif->u.ap.noa_data,
3864 arvif->u.ap.noa_len);
3865 spin_unlock_bh(&ar->data_lock);
3866 }
3867 }
3868
ath10k_mac_tx_h_fill_cb(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_txq * txq,struct ieee80211_sta * sta,struct sk_buff * skb,u16 airtime)3869 static void ath10k_mac_tx_h_fill_cb(struct ath10k *ar,
3870 struct ieee80211_vif *vif,
3871 struct ieee80211_txq *txq,
3872 struct ieee80211_sta *sta,
3873 struct sk_buff *skb, u16 airtime)
3874 {
3875 struct ieee80211_hdr *hdr = (void *)skb->data;
3876 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3877 const struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3878 bool is_data = ieee80211_is_data(hdr->frame_control) ||
3879 ieee80211_is_data_qos(hdr->frame_control);
3880 struct ath10k_vif *arvif = (void *)vif->drv_priv;
3881 struct ath10k_sta *arsta;
3882 u8 tid, *qos_ctl;
3883 bool noack = false;
3884
3885 cb->flags = 0;
3886
3887 if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
3888 cb->flags |= ATH10K_SKB_F_QOS; /* Assume data frames are QoS */
3889 goto finish_cb_fill;
3890 }
3891
3892 if (!ath10k_tx_h_use_hwcrypto(vif, skb))
3893 cb->flags |= ATH10K_SKB_F_NO_HWCRYPT;
3894
3895 if (ieee80211_is_mgmt(hdr->frame_control))
3896 cb->flags |= ATH10K_SKB_F_MGMT;
3897
3898 if (ieee80211_is_data_qos(hdr->frame_control)) {
3899 cb->flags |= ATH10K_SKB_F_QOS;
3900 qos_ctl = ieee80211_get_qos_ctl(hdr);
3901 tid = (*qos_ctl) & IEEE80211_QOS_CTL_TID_MASK;
3902
3903 if (arvif->noack[tid] == WMI_PEER_TID_CONFIG_NOACK)
3904 noack = true;
3905
3906 if (sta) {
3907 arsta = (struct ath10k_sta *)sta->drv_priv;
3908
3909 if (arsta->noack[tid] == WMI_PEER_TID_CONFIG_NOACK)
3910 noack = true;
3911
3912 if (arsta->noack[tid] == WMI_PEER_TID_CONFIG_ACK)
3913 noack = false;
3914 }
3915
3916 if (noack)
3917 cb->flags |= ATH10K_SKB_F_NOACK_TID;
3918 }
3919
3920 /* Data frames encrypted in software will be posted to firmware
3921 * with tx encap mode set to RAW. Ex: Multicast traffic generated
3922 * for a specific VLAN group will always be encrypted in software.
3923 */
3924 if (is_data && ieee80211_has_protected(hdr->frame_control) &&
3925 !info->control.hw_key) {
3926 cb->flags |= ATH10K_SKB_F_NO_HWCRYPT;
3927 cb->flags |= ATH10K_SKB_F_RAW_TX;
3928 }
3929
3930 finish_cb_fill:
3931 cb->vif = vif;
3932 cb->txq = txq;
3933 cb->airtime_est = airtime;
3934 if (sta) {
3935 arsta = (struct ath10k_sta *)sta->drv_priv;
3936 spin_lock_bh(&ar->data_lock);
3937 cb->ucast_cipher = arsta->ucast_cipher;
3938 spin_unlock_bh(&ar->data_lock);
3939 }
3940 }
3941
ath10k_mac_tx_frm_has_freq(struct ath10k * ar)3942 bool ath10k_mac_tx_frm_has_freq(struct ath10k *ar)
3943 {
3944 /* FIXME: Not really sure since when the behaviour changed. At some
3945 * point new firmware stopped requiring creation of peer entries for
3946 * offchannel tx (and actually creating them causes issues with wmi-htc
3947 * tx credit replenishment and reliability). Assuming it's at least 3.4
3948 * because that's when the `freq` was introduced to TX_FRM HTT command.
3949 */
3950 return (ar->htt.target_version_major >= 3 &&
3951 ar->htt.target_version_minor >= 4 &&
3952 ar->running_fw->fw_file.htt_op_version == ATH10K_FW_HTT_OP_VERSION_TLV);
3953 }
3954
ath10k_mac_tx_wmi_mgmt(struct ath10k * ar,struct sk_buff * skb)3955 static int ath10k_mac_tx_wmi_mgmt(struct ath10k *ar, struct sk_buff *skb)
3956 {
3957 struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
3958
3959 if (skb_queue_len_lockless(q) >= ATH10K_MAX_NUM_MGMT_PENDING) {
3960 ath10k_warn(ar, "wmi mgmt tx queue is full\n");
3961 return -ENOSPC;
3962 }
3963
3964 skb_queue_tail(q, skb);
3965 ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
3966
3967 return 0;
3968 }
3969
3970 static enum ath10k_mac_tx_path
ath10k_mac_tx_h_get_txpath(struct ath10k * ar,struct sk_buff * skb,enum ath10k_hw_txrx_mode txmode)3971 ath10k_mac_tx_h_get_txpath(struct ath10k *ar,
3972 struct sk_buff *skb,
3973 enum ath10k_hw_txrx_mode txmode)
3974 {
3975 switch (txmode) {
3976 case ATH10K_HW_TXRX_RAW:
3977 case ATH10K_HW_TXRX_NATIVE_WIFI:
3978 case ATH10K_HW_TXRX_ETHERNET:
3979 return ATH10K_MAC_TX_HTT;
3980 case ATH10K_HW_TXRX_MGMT:
3981 if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3982 ar->running_fw->fw_file.fw_features) ||
3983 test_bit(WMI_SERVICE_MGMT_TX_WMI,
3984 ar->wmi.svc_map))
3985 return ATH10K_MAC_TX_WMI_MGMT;
3986 else if (ar->htt.target_version_major >= 3)
3987 return ATH10K_MAC_TX_HTT;
3988 else
3989 return ATH10K_MAC_TX_HTT_MGMT;
3990 }
3991
3992 return ATH10K_MAC_TX_UNKNOWN;
3993 }
3994
ath10k_mac_tx_submit(struct ath10k * ar,enum ath10k_hw_txrx_mode txmode,enum ath10k_mac_tx_path txpath,struct sk_buff * skb)3995 static int ath10k_mac_tx_submit(struct ath10k *ar,
3996 enum ath10k_hw_txrx_mode txmode,
3997 enum ath10k_mac_tx_path txpath,
3998 struct sk_buff *skb)
3999 {
4000 struct ath10k_htt *htt = &ar->htt;
4001 int ret = -EINVAL;
4002
4003 switch (txpath) {
4004 case ATH10K_MAC_TX_HTT:
4005 ret = ath10k_htt_tx(htt, txmode, skb);
4006 break;
4007 case ATH10K_MAC_TX_HTT_MGMT:
4008 ret = ath10k_htt_mgmt_tx(htt, skb);
4009 break;
4010 case ATH10K_MAC_TX_WMI_MGMT:
4011 ret = ath10k_mac_tx_wmi_mgmt(ar, skb);
4012 break;
4013 case ATH10K_MAC_TX_UNKNOWN:
4014 WARN_ON_ONCE(1);
4015 ret = -EINVAL;
4016 break;
4017 }
4018
4019 if (ret) {
4020 ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
4021 ret);
4022 ieee80211_free_txskb(ar->hw, skb);
4023 }
4024
4025 return ret;
4026 }
4027
4028 /* This function consumes the sk_buff regardless of return value as far as
4029 * caller is concerned so no freeing is necessary afterwards.
4030 */
ath10k_mac_tx(struct ath10k * ar,struct ieee80211_vif * vif,enum ath10k_hw_txrx_mode txmode,enum ath10k_mac_tx_path txpath,struct sk_buff * skb,bool noque_offchan)4031 static int ath10k_mac_tx(struct ath10k *ar,
4032 struct ieee80211_vif *vif,
4033 enum ath10k_hw_txrx_mode txmode,
4034 enum ath10k_mac_tx_path txpath,
4035 struct sk_buff *skb, bool noque_offchan)
4036 {
4037 struct ieee80211_hw *hw = ar->hw;
4038 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
4039 const struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
4040 int ret;
4041
4042 /* We should disable CCK RATE due to P2P */
4043 if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
4044 ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
4045
4046 switch (txmode) {
4047 case ATH10K_HW_TXRX_MGMT:
4048 case ATH10K_HW_TXRX_NATIVE_WIFI:
4049 ath10k_tx_h_nwifi(hw, skb);
4050 ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
4051 ath10k_tx_h_seq_no(vif, skb);
4052 break;
4053 case ATH10K_HW_TXRX_ETHERNET:
4054 /* Convert 802.11->802.3 header only if the frame was earlier
4055 * encapsulated to 802.11 by mac80211. Otherwise pass it as is.
4056 */
4057 if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP))
4058 ath10k_tx_h_8023(skb);
4059 break;
4060 case ATH10K_HW_TXRX_RAW:
4061 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags) &&
4062 !(skb_cb->flags & ATH10K_SKB_F_RAW_TX)) {
4063 WARN_ON_ONCE(1);
4064 ieee80211_free_txskb(hw, skb);
4065 return -ENOTSUPP;
4066 }
4067 }
4068
4069 if (!noque_offchan && info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
4070 if (!ath10k_mac_tx_frm_has_freq(ar)) {
4071 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac queued offchannel skb %pK len %d\n",
4072 skb, skb->len);
4073
4074 skb_queue_tail(&ar->offchan_tx_queue, skb);
4075 ieee80211_queue_work(hw, &ar->offchan_tx_work);
4076 return 0;
4077 }
4078 }
4079
4080 ret = ath10k_mac_tx_submit(ar, txmode, txpath, skb);
4081 if (ret) {
4082 ath10k_warn(ar, "failed to submit frame: %d\n", ret);
4083 return ret;
4084 }
4085
4086 return 0;
4087 }
4088
ath10k_offchan_tx_purge(struct ath10k * ar)4089 void ath10k_offchan_tx_purge(struct ath10k *ar)
4090 {
4091 struct sk_buff *skb;
4092
4093 for (;;) {
4094 skb = skb_dequeue(&ar->offchan_tx_queue);
4095 if (!skb)
4096 break;
4097
4098 ieee80211_free_txskb(ar->hw, skb);
4099 }
4100 }
4101
ath10k_offchan_tx_work(struct work_struct * work)4102 void ath10k_offchan_tx_work(struct work_struct *work)
4103 {
4104 struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
4105 struct ath10k_peer *peer;
4106 struct ath10k_vif *arvif;
4107 enum ath10k_hw_txrx_mode txmode;
4108 enum ath10k_mac_tx_path txpath;
4109 struct ieee80211_hdr *hdr;
4110 struct ieee80211_vif *vif;
4111 struct ieee80211_sta *sta;
4112 struct sk_buff *skb;
4113 const u8 *peer_addr;
4114 int vdev_id;
4115 int ret;
4116 unsigned long time_left;
4117 bool tmp_peer_created = false;
4118
4119 /* FW requirement: We must create a peer before FW will send out
4120 * an offchannel frame. Otherwise the frame will be stuck and
4121 * never transmitted. We delete the peer upon tx completion.
4122 * It is unlikely that a peer for offchannel tx will already be
4123 * present. However it may be in some rare cases so account for that.
4124 * Otherwise we might remove a legitimate peer and break stuff.
4125 */
4126
4127 for (;;) {
4128 skb = skb_dequeue(&ar->offchan_tx_queue);
4129 if (!skb)
4130 break;
4131
4132 mutex_lock(&ar->conf_mutex);
4133
4134 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %pK len %d\n",
4135 skb, skb->len);
4136
4137 hdr = (struct ieee80211_hdr *)skb->data;
4138 peer_addr = ieee80211_get_DA(hdr);
4139
4140 spin_lock_bh(&ar->data_lock);
4141 vdev_id = ar->scan.vdev_id;
4142 peer = ath10k_peer_find(ar, vdev_id, peer_addr);
4143 spin_unlock_bh(&ar->data_lock);
4144
4145 if (peer) {
4146 ath10k_warn(ar, "peer %pM on vdev %d already present\n",
4147 peer_addr, vdev_id);
4148 } else {
4149 ret = ath10k_peer_create(ar, NULL, NULL, vdev_id,
4150 peer_addr,
4151 WMI_PEER_TYPE_DEFAULT);
4152 if (ret)
4153 ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
4154 peer_addr, vdev_id, ret);
4155 tmp_peer_created = (ret == 0);
4156 }
4157
4158 spin_lock_bh(&ar->data_lock);
4159 reinit_completion(&ar->offchan_tx_completed);
4160 ar->offchan_tx_skb = skb;
4161 spin_unlock_bh(&ar->data_lock);
4162
4163 /* It's safe to access vif and sta - conf_mutex guarantees that
4164 * sta_state() and remove_interface() are locked exclusively
4165 * out wrt to this offchannel worker.
4166 */
4167 arvif = ath10k_get_arvif(ar, vdev_id);
4168 if (arvif) {
4169 vif = arvif->vif;
4170 sta = ieee80211_find_sta(vif, peer_addr);
4171 } else {
4172 vif = NULL;
4173 sta = NULL;
4174 }
4175
4176 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
4177 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
4178
4179 ret = ath10k_mac_tx(ar, vif, txmode, txpath, skb, true);
4180 if (ret) {
4181 ath10k_warn(ar, "failed to transmit offchannel frame: %d\n",
4182 ret);
4183 /* not serious */
4184 }
4185
4186 time_left =
4187 wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
4188 if (time_left == 0)
4189 ath10k_warn(ar, "timed out waiting for offchannel skb %pK, len: %d\n",
4190 skb, skb->len);
4191
4192 if (!peer && tmp_peer_created) {
4193 ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
4194 if (ret)
4195 ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
4196 peer_addr, vdev_id, ret);
4197 }
4198
4199 mutex_unlock(&ar->conf_mutex);
4200 }
4201 }
4202
ath10k_mgmt_over_wmi_tx_purge(struct ath10k * ar)4203 void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
4204 {
4205 struct sk_buff *skb;
4206
4207 for (;;) {
4208 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
4209 if (!skb)
4210 break;
4211
4212 ieee80211_free_txskb(ar->hw, skb);
4213 }
4214 }
4215
ath10k_mgmt_over_wmi_tx_work(struct work_struct * work)4216 void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
4217 {
4218 struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
4219 struct sk_buff *skb;
4220 dma_addr_t paddr;
4221 int ret;
4222
4223 for (;;) {
4224 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
4225 if (!skb)
4226 break;
4227
4228 if (test_bit(ATH10K_FW_FEATURE_MGMT_TX_BY_REF,
4229 ar->running_fw->fw_file.fw_features)) {
4230 paddr = dma_map_single(ar->dev, skb->data,
4231 skb->len, DMA_TO_DEVICE);
4232 if (dma_mapping_error(ar->dev, paddr)) {
4233 ieee80211_free_txskb(ar->hw, skb);
4234 continue;
4235 }
4236 ret = ath10k_wmi_mgmt_tx_send(ar, skb, paddr);
4237 if (ret) {
4238 ath10k_warn(ar, "failed to transmit management frame by ref via WMI: %d\n",
4239 ret);
4240 /* remove this msdu from idr tracking */
4241 ath10k_wmi_cleanup_mgmt_tx_send(ar, skb);
4242
4243 dma_unmap_single(ar->dev, paddr, skb->len,
4244 DMA_TO_DEVICE);
4245 ieee80211_free_txskb(ar->hw, skb);
4246 }
4247 } else {
4248 ret = ath10k_wmi_mgmt_tx(ar, skb);
4249 if (ret) {
4250 ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
4251 ret);
4252 ieee80211_free_txskb(ar->hw, skb);
4253 }
4254 }
4255 }
4256 }
4257
ath10k_mac_txq_init(struct ieee80211_txq * txq)4258 static void ath10k_mac_txq_init(struct ieee80211_txq *txq)
4259 {
4260 struct ath10k_txq *artxq;
4261
4262 if (!txq)
4263 return;
4264
4265 artxq = (void *)txq->drv_priv;
4266 INIT_LIST_HEAD(&artxq->list);
4267 }
4268
ath10k_mac_txq_unref(struct ath10k * ar,struct ieee80211_txq * txq)4269 static void ath10k_mac_txq_unref(struct ath10k *ar, struct ieee80211_txq *txq)
4270 {
4271 struct ath10k_skb_cb *cb;
4272 struct sk_buff *msdu;
4273 int msdu_id;
4274
4275 if (!txq)
4276 return;
4277
4278 spin_lock_bh(&ar->htt.tx_lock);
4279 idr_for_each_entry(&ar->htt.pending_tx, msdu, msdu_id) {
4280 cb = ATH10K_SKB_CB(msdu);
4281 if (cb->txq == txq)
4282 cb->txq = NULL;
4283 }
4284 spin_unlock_bh(&ar->htt.tx_lock);
4285 }
4286
ath10k_mac_txq_lookup(struct ath10k * ar,u16 peer_id,u8 tid)4287 struct ieee80211_txq *ath10k_mac_txq_lookup(struct ath10k *ar,
4288 u16 peer_id,
4289 u8 tid)
4290 {
4291 struct ath10k_peer *peer;
4292
4293 lockdep_assert_held(&ar->data_lock);
4294
4295 peer = ar->peer_map[peer_id];
4296 if (!peer)
4297 return NULL;
4298
4299 if (peer->removed)
4300 return NULL;
4301
4302 if (peer->sta)
4303 return peer->sta->txq[tid];
4304 else if (peer->vif)
4305 return peer->vif->txq;
4306 else
4307 return NULL;
4308 }
4309
ath10k_mac_tx_can_push(struct ieee80211_hw * hw,struct ieee80211_txq * txq)4310 static bool ath10k_mac_tx_can_push(struct ieee80211_hw *hw,
4311 struct ieee80211_txq *txq)
4312 {
4313 struct ath10k *ar = hw->priv;
4314 struct ath10k_txq *artxq = (void *)txq->drv_priv;
4315
4316 /* No need to get locks */
4317 if (ar->htt.tx_q_state.mode == HTT_TX_MODE_SWITCH_PUSH)
4318 return true;
4319
4320 if (ar->htt.num_pending_tx < ar->htt.tx_q_state.num_push_allowed)
4321 return true;
4322
4323 if (artxq->num_fw_queued < artxq->num_push_allowed)
4324 return true;
4325
4326 return false;
4327 }
4328
4329 /* Return estimated airtime in microsecond, which is calculated using last
4330 * reported TX rate. This is just a rough estimation because host driver has no
4331 * knowledge of the actual transmit rate, retries or aggregation. If actual
4332 * airtime can be reported by firmware, then delta between estimated and actual
4333 * airtime can be adjusted from deficit.
4334 */
4335 #define IEEE80211_ATF_OVERHEAD 100 /* IFS + some slot time */
4336 #define IEEE80211_ATF_OVERHEAD_IFS 16 /* IFS only */
ath10k_mac_update_airtime(struct ath10k * ar,struct ieee80211_txq * txq,struct sk_buff * skb)4337 static u16 ath10k_mac_update_airtime(struct ath10k *ar,
4338 struct ieee80211_txq *txq,
4339 struct sk_buff *skb)
4340 {
4341 struct ath10k_sta *arsta;
4342 u32 pktlen;
4343 u16 airtime = 0;
4344
4345 if (!txq || !txq->sta)
4346 return airtime;
4347
4348 if (test_bit(WMI_SERVICE_REPORT_AIRTIME, ar->wmi.svc_map))
4349 return airtime;
4350
4351 spin_lock_bh(&ar->data_lock);
4352 arsta = (struct ath10k_sta *)txq->sta->drv_priv;
4353
4354 pktlen = skb->len + 38; /* Assume MAC header 30, SNAP 8 for most case */
4355 if (arsta->last_tx_bitrate) {
4356 /* airtime in us, last_tx_bitrate in 100kbps */
4357 airtime = (pktlen * 8 * (1000 / 100))
4358 / arsta->last_tx_bitrate;
4359 /* overhead for media access time and IFS */
4360 airtime += IEEE80211_ATF_OVERHEAD_IFS;
4361 } else {
4362 /* This is mostly for throttle excessive BC/MC frames, and the
4363 * airtime/rate doesn't need be exact. Airtime of BC/MC frames
4364 * in 2G get some discount, which helps prevent very low rate
4365 * frames from being blocked for too long.
4366 */
4367 airtime = (pktlen * 8 * (1000 / 100)) / 60; /* 6M */
4368 airtime += IEEE80211_ATF_OVERHEAD;
4369 }
4370 spin_unlock_bh(&ar->data_lock);
4371
4372 return airtime;
4373 }
4374
ath10k_mac_tx_push_txq(struct ieee80211_hw * hw,struct ieee80211_txq * txq)4375 int ath10k_mac_tx_push_txq(struct ieee80211_hw *hw,
4376 struct ieee80211_txq *txq)
4377 {
4378 struct ath10k *ar = hw->priv;
4379 struct ath10k_htt *htt = &ar->htt;
4380 struct ath10k_txq *artxq = (void *)txq->drv_priv;
4381 struct ieee80211_vif *vif = txq->vif;
4382 struct ieee80211_sta *sta = txq->sta;
4383 enum ath10k_hw_txrx_mode txmode;
4384 enum ath10k_mac_tx_path txpath;
4385 struct sk_buff *skb;
4386 struct ieee80211_hdr *hdr;
4387 size_t skb_len;
4388 bool is_mgmt, is_presp;
4389 int ret;
4390 u16 airtime;
4391
4392 spin_lock_bh(&ar->htt.tx_lock);
4393 ret = ath10k_htt_tx_inc_pending(htt);
4394 spin_unlock_bh(&ar->htt.tx_lock);
4395
4396 if (ret)
4397 return ret;
4398
4399 skb = ieee80211_tx_dequeue_ni(hw, txq);
4400 if (!skb) {
4401 spin_lock_bh(&ar->htt.tx_lock);
4402 ath10k_htt_tx_dec_pending(htt);
4403 spin_unlock_bh(&ar->htt.tx_lock);
4404
4405 return -ENOENT;
4406 }
4407
4408 airtime = ath10k_mac_update_airtime(ar, txq, skb);
4409 ath10k_mac_tx_h_fill_cb(ar, vif, txq, sta, skb, airtime);
4410
4411 skb_len = skb->len;
4412 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
4413 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
4414 is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);
4415
4416 if (is_mgmt) {
4417 hdr = (struct ieee80211_hdr *)skb->data;
4418 is_presp = ieee80211_is_probe_resp(hdr->frame_control);
4419
4420 spin_lock_bh(&ar->htt.tx_lock);
4421 ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);
4422
4423 if (ret) {
4424 ath10k_htt_tx_dec_pending(htt);
4425 spin_unlock_bh(&ar->htt.tx_lock);
4426 return ret;
4427 }
4428 spin_unlock_bh(&ar->htt.tx_lock);
4429 }
4430
4431 ret = ath10k_mac_tx(ar, vif, txmode, txpath, skb, false);
4432 if (unlikely(ret)) {
4433 ath10k_warn(ar, "failed to push frame: %d\n", ret);
4434
4435 spin_lock_bh(&ar->htt.tx_lock);
4436 ath10k_htt_tx_dec_pending(htt);
4437 if (is_mgmt)
4438 ath10k_htt_tx_mgmt_dec_pending(htt);
4439 spin_unlock_bh(&ar->htt.tx_lock);
4440
4441 return ret;
4442 }
4443
4444 spin_lock_bh(&ar->htt.tx_lock);
4445 artxq->num_fw_queued++;
4446 spin_unlock_bh(&ar->htt.tx_lock);
4447
4448 return skb_len;
4449 }
4450
ath10k_mac_schedule_txq(struct ieee80211_hw * hw,u32 ac)4451 static int ath10k_mac_schedule_txq(struct ieee80211_hw *hw, u32 ac)
4452 {
4453 struct ieee80211_txq *txq;
4454 int ret = 0;
4455
4456 ieee80211_txq_schedule_start(hw, ac);
4457 while ((txq = ieee80211_next_txq(hw, ac))) {
4458 while (ath10k_mac_tx_can_push(hw, txq)) {
4459 ret = ath10k_mac_tx_push_txq(hw, txq);
4460 if (ret < 0)
4461 break;
4462 }
4463 ieee80211_return_txq(hw, txq, false);
4464 ath10k_htt_tx_txq_update(hw, txq);
4465 if (ret == -EBUSY)
4466 break;
4467 }
4468 ieee80211_txq_schedule_end(hw, ac);
4469
4470 return ret;
4471 }
4472
ath10k_mac_tx_push_pending(struct ath10k * ar)4473 void ath10k_mac_tx_push_pending(struct ath10k *ar)
4474 {
4475 struct ieee80211_hw *hw = ar->hw;
4476 u32 ac;
4477
4478 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH)
4479 return;
4480
4481 if (ar->htt.num_pending_tx >= (ar->htt.max_num_pending_tx / 2))
4482 return;
4483
4484 rcu_read_lock();
4485 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4486 if (ath10k_mac_schedule_txq(hw, ac) == -EBUSY)
4487 break;
4488 }
4489 rcu_read_unlock();
4490 }
4491 EXPORT_SYMBOL(ath10k_mac_tx_push_pending);
4492
4493 /************/
4494 /* Scanning */
4495 /************/
4496
__ath10k_scan_finish(struct ath10k * ar)4497 void __ath10k_scan_finish(struct ath10k *ar)
4498 {
4499 lockdep_assert_held(&ar->data_lock);
4500
4501 switch (ar->scan.state) {
4502 case ATH10K_SCAN_IDLE:
4503 break;
4504 case ATH10K_SCAN_RUNNING:
4505 case ATH10K_SCAN_ABORTING:
4506 if (!ar->scan.is_roc) {
4507 struct cfg80211_scan_info info = {
4508 .aborted = (ar->scan.state ==
4509 ATH10K_SCAN_ABORTING),
4510 };
4511
4512 ieee80211_scan_completed(ar->hw, &info);
4513 } else if (ar->scan.roc_notify) {
4514 ieee80211_remain_on_channel_expired(ar->hw);
4515 }
4516 fallthrough;
4517 case ATH10K_SCAN_STARTING:
4518 ar->scan.state = ATH10K_SCAN_IDLE;
4519 ar->scan_channel = NULL;
4520 ar->scan.roc_freq = 0;
4521 ath10k_offchan_tx_purge(ar);
4522 cancel_delayed_work(&ar->scan.timeout);
4523 complete(&ar->scan.completed);
4524 break;
4525 }
4526 }
4527
ath10k_scan_finish(struct ath10k * ar)4528 void ath10k_scan_finish(struct ath10k *ar)
4529 {
4530 spin_lock_bh(&ar->data_lock);
4531 __ath10k_scan_finish(ar);
4532 spin_unlock_bh(&ar->data_lock);
4533 }
4534
ath10k_scan_stop(struct ath10k * ar)4535 static int ath10k_scan_stop(struct ath10k *ar)
4536 {
4537 struct wmi_stop_scan_arg arg = {
4538 .req_id = 1, /* FIXME */
4539 .req_type = WMI_SCAN_STOP_ONE,
4540 .u.scan_id = ATH10K_SCAN_ID,
4541 };
4542 int ret;
4543
4544 lockdep_assert_held(&ar->conf_mutex);
4545
4546 ret = ath10k_wmi_stop_scan(ar, &arg);
4547 if (ret) {
4548 ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
4549 goto out;
4550 }
4551
4552 ret = wait_for_completion_timeout(&ar->scan.completed, 3 * HZ);
4553 if (ret == 0) {
4554 ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
4555 ret = -ETIMEDOUT;
4556 } else if (ret > 0) {
4557 ret = 0;
4558 }
4559
4560 out:
4561 /* Scan state should be updated upon scan completion but in case
4562 * firmware fails to deliver the event (for whatever reason) it is
4563 * desired to clean up scan state anyway. Firmware may have just
4564 * dropped the scan completion event delivery due to transport pipe
4565 * being overflown with data and/or it can recover on its own before
4566 * next scan request is submitted.
4567 */
4568 spin_lock_bh(&ar->data_lock);
4569 if (ar->scan.state != ATH10K_SCAN_IDLE)
4570 __ath10k_scan_finish(ar);
4571 spin_unlock_bh(&ar->data_lock);
4572
4573 return ret;
4574 }
4575
ath10k_scan_abort(struct ath10k * ar)4576 static void ath10k_scan_abort(struct ath10k *ar)
4577 {
4578 int ret;
4579
4580 lockdep_assert_held(&ar->conf_mutex);
4581
4582 spin_lock_bh(&ar->data_lock);
4583
4584 switch (ar->scan.state) {
4585 case ATH10K_SCAN_IDLE:
4586 /* This can happen if timeout worker kicked in and called
4587 * abortion while scan completion was being processed.
4588 */
4589 break;
4590 case ATH10K_SCAN_STARTING:
4591 case ATH10K_SCAN_ABORTING:
4592 ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
4593 ath10k_scan_state_str(ar->scan.state),
4594 ar->scan.state);
4595 break;
4596 case ATH10K_SCAN_RUNNING:
4597 ar->scan.state = ATH10K_SCAN_ABORTING;
4598 spin_unlock_bh(&ar->data_lock);
4599
4600 ret = ath10k_scan_stop(ar);
4601 if (ret)
4602 ath10k_warn(ar, "failed to abort scan: %d\n", ret);
4603
4604 spin_lock_bh(&ar->data_lock);
4605 break;
4606 }
4607
4608 spin_unlock_bh(&ar->data_lock);
4609 }
4610
ath10k_scan_timeout_work(struct work_struct * work)4611 void ath10k_scan_timeout_work(struct work_struct *work)
4612 {
4613 struct ath10k *ar = container_of(work, struct ath10k,
4614 scan.timeout.work);
4615
4616 mutex_lock(&ar->conf_mutex);
4617 ath10k_scan_abort(ar);
4618 mutex_unlock(&ar->conf_mutex);
4619 }
4620
ath10k_start_scan(struct ath10k * ar,const struct wmi_start_scan_arg * arg)4621 static int ath10k_start_scan(struct ath10k *ar,
4622 const struct wmi_start_scan_arg *arg)
4623 {
4624 int ret;
4625
4626 lockdep_assert_held(&ar->conf_mutex);
4627
4628 ret = ath10k_wmi_start_scan(ar, arg);
4629 if (ret)
4630 return ret;
4631
4632 ret = wait_for_completion_timeout(&ar->scan.started, 1 * HZ);
4633 if (ret == 0) {
4634 ret = ath10k_scan_stop(ar);
4635 if (ret)
4636 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
4637
4638 return -ETIMEDOUT;
4639 }
4640
4641 /* If we failed to start the scan, return error code at
4642 * this point. This is probably due to some issue in the
4643 * firmware, but no need to wedge the driver due to that...
4644 */
4645 spin_lock_bh(&ar->data_lock);
4646 if (ar->scan.state == ATH10K_SCAN_IDLE) {
4647 spin_unlock_bh(&ar->data_lock);
4648 return -EINVAL;
4649 }
4650 spin_unlock_bh(&ar->data_lock);
4651
4652 return 0;
4653 }
4654
4655 /**********************/
4656 /* mac80211 callbacks */
4657 /**********************/
4658
ath10k_mac_op_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)4659 static void ath10k_mac_op_tx(struct ieee80211_hw *hw,
4660 struct ieee80211_tx_control *control,
4661 struct sk_buff *skb)
4662 {
4663 struct ath10k *ar = hw->priv;
4664 struct ath10k_htt *htt = &ar->htt;
4665 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
4666 struct ieee80211_vif *vif = info->control.vif;
4667 struct ieee80211_sta *sta = control->sta;
4668 struct ieee80211_txq *txq = NULL;
4669 enum ath10k_hw_txrx_mode txmode;
4670 enum ath10k_mac_tx_path txpath;
4671 bool is_htt;
4672 bool is_mgmt;
4673 int ret;
4674 u16 airtime;
4675
4676 airtime = ath10k_mac_update_airtime(ar, txq, skb);
4677 ath10k_mac_tx_h_fill_cb(ar, vif, txq, sta, skb, airtime);
4678
4679 txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
4680 txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
4681 is_htt = (txpath == ATH10K_MAC_TX_HTT ||
4682 txpath == ATH10K_MAC_TX_HTT_MGMT);
4683 is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);
4684
4685 if (is_htt) {
4686 bool is_presp = false;
4687
4688 spin_lock_bh(&ar->htt.tx_lock);
4689 if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP)) {
4690 struct ieee80211_hdr *hdr = (void *)skb->data;
4691
4692 is_presp = ieee80211_is_probe_resp(hdr->frame_control);
4693 }
4694
4695 ret = ath10k_htt_tx_inc_pending(htt);
4696 if (ret) {
4697 ath10k_warn(ar, "failed to increase tx pending count: %d, dropping\n",
4698 ret);
4699 spin_unlock_bh(&ar->htt.tx_lock);
4700 ieee80211_free_txskb(ar->hw, skb);
4701 return;
4702 }
4703
4704 ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);
4705 if (ret) {
4706 ath10k_dbg(ar, ATH10K_DBG_MAC, "failed to increase tx mgmt pending count: %d, dropping\n",
4707 ret);
4708 ath10k_htt_tx_dec_pending(htt);
4709 spin_unlock_bh(&ar->htt.tx_lock);
4710 ieee80211_free_txskb(ar->hw, skb);
4711 return;
4712 }
4713 spin_unlock_bh(&ar->htt.tx_lock);
4714 }
4715
4716 ret = ath10k_mac_tx(ar, vif, txmode, txpath, skb, false);
4717 if (ret) {
4718 ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
4719 if (is_htt) {
4720 spin_lock_bh(&ar->htt.tx_lock);
4721 ath10k_htt_tx_dec_pending(htt);
4722 if (is_mgmt)
4723 ath10k_htt_tx_mgmt_dec_pending(htt);
4724 spin_unlock_bh(&ar->htt.tx_lock);
4725 }
4726 return;
4727 }
4728 }
4729
ath10k_mac_op_wake_tx_queue(struct ieee80211_hw * hw,struct ieee80211_txq * txq)4730 static void ath10k_mac_op_wake_tx_queue(struct ieee80211_hw *hw,
4731 struct ieee80211_txq *txq)
4732 {
4733 struct ath10k *ar = hw->priv;
4734 int ret;
4735 u8 ac = txq->ac;
4736
4737 ath10k_htt_tx_txq_update(hw, txq);
4738 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH)
4739 return;
4740
4741 spin_lock_bh(&ar->queue_lock[ac]);
4742
4743 ieee80211_txq_schedule_start(hw, ac);
4744 txq = ieee80211_next_txq(hw, ac);
4745 if (!txq)
4746 goto out;
4747
4748 while (ath10k_mac_tx_can_push(hw, txq)) {
4749 ret = ath10k_mac_tx_push_txq(hw, txq);
4750 if (ret < 0)
4751 break;
4752 }
4753 ieee80211_return_txq(hw, txq, false);
4754 ath10k_htt_tx_txq_update(hw, txq);
4755 out:
4756 ieee80211_txq_schedule_end(hw, ac);
4757 spin_unlock_bh(&ar->queue_lock[ac]);
4758 }
4759
4760 /* Must not be called with conf_mutex held as workers can use that also. */
ath10k_drain_tx(struct ath10k * ar)4761 void ath10k_drain_tx(struct ath10k *ar)
4762 {
4763 lockdep_assert_not_held(&ar->conf_mutex);
4764
4765 /* make sure rcu-protected mac80211 tx path itself is drained */
4766 synchronize_net();
4767
4768 ath10k_offchan_tx_purge(ar);
4769 ath10k_mgmt_over_wmi_tx_purge(ar);
4770
4771 cancel_work_sync(&ar->offchan_tx_work);
4772 cancel_work_sync(&ar->wmi_mgmt_tx_work);
4773 }
4774
ath10k_halt(struct ath10k * ar)4775 void ath10k_halt(struct ath10k *ar)
4776 {
4777 struct ath10k_vif *arvif;
4778
4779 lockdep_assert_held(&ar->conf_mutex);
4780
4781 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
4782 ar->filter_flags = 0;
4783 ar->monitor = false;
4784 ar->monitor_arvif = NULL;
4785
4786 if (ar->monitor_started)
4787 ath10k_monitor_stop(ar);
4788
4789 ar->monitor_started = false;
4790 ar->tx_paused = 0;
4791
4792 ath10k_scan_finish(ar);
4793 ath10k_peer_cleanup_all(ar);
4794 ath10k_stop_radar_confirmation(ar);
4795 ath10k_core_stop(ar);
4796 ath10k_hif_power_down(ar);
4797
4798 spin_lock_bh(&ar->data_lock);
4799 list_for_each_entry(arvif, &ar->arvifs, list)
4800 ath10k_mac_vif_beacon_cleanup(arvif);
4801 spin_unlock_bh(&ar->data_lock);
4802 }
4803
ath10k_get_antenna(struct ieee80211_hw * hw,u32 * tx_ant,u32 * rx_ant)4804 static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
4805 {
4806 struct ath10k *ar = hw->priv;
4807
4808 mutex_lock(&ar->conf_mutex);
4809
4810 *tx_ant = ar->cfg_tx_chainmask;
4811 *rx_ant = ar->cfg_rx_chainmask;
4812
4813 mutex_unlock(&ar->conf_mutex);
4814
4815 return 0;
4816 }
4817
ath10k_check_chain_mask(struct ath10k * ar,u32 cm,const char * dbg)4818 static bool ath10k_check_chain_mask(struct ath10k *ar, u32 cm, const char *dbg)
4819 {
4820 /* It is not clear that allowing gaps in chainmask
4821 * is helpful. Probably it will not do what user
4822 * is hoping for, so warn in that case.
4823 */
4824 if (cm == 15 || cm == 7 || cm == 3 || cm == 1 || cm == 0)
4825 return true;
4826
4827 ath10k_warn(ar, "mac %s antenna chainmask is invalid: 0x%x. Suggested values: 15, 7, 3, 1 or 0.\n",
4828 dbg, cm);
4829 return false;
4830 }
4831
ath10k_mac_get_vht_cap_bf_sts(struct ath10k * ar)4832 static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
4833 {
4834 int nsts = ar->vht_cap_info;
4835
4836 nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
4837 nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
4838
4839 /* If firmware does not deliver to host number of space-time
4840 * streams supported, assume it support up to 4 BF STS and return
4841 * the value for VHT CAP: nsts-1)
4842 */
4843 if (nsts == 0)
4844 return 3;
4845
4846 return nsts;
4847 }
4848
ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k * ar)4849 static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
4850 {
4851 int sound_dim = ar->vht_cap_info;
4852
4853 sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
4854 sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
4855
4856 /* If the sounding dimension is not advertised by the firmware,
4857 * let's use a default value of 1
4858 */
4859 if (sound_dim == 0)
4860 return 1;
4861
4862 return sound_dim;
4863 }
4864
ath10k_create_vht_cap(struct ath10k * ar)4865 static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
4866 {
4867 struct ieee80211_sta_vht_cap vht_cap = {0};
4868 struct ath10k_hw_params *hw = &ar->hw_params;
4869 u16 mcs_map;
4870 u32 val;
4871 int i;
4872
4873 vht_cap.vht_supported = 1;
4874 vht_cap.cap = ar->vht_cap_info;
4875
4876 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
4877 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
4878 val = ath10k_mac_get_vht_cap_bf_sts(ar);
4879 val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
4880 val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
4881
4882 vht_cap.cap |= val;
4883 }
4884
4885 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
4886 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
4887 val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
4888 val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
4889 val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
4890
4891 vht_cap.cap |= val;
4892 }
4893
4894 mcs_map = 0;
4895 for (i = 0; i < 8; i++) {
4896 if ((i < ar->num_rf_chains) && (ar->cfg_tx_chainmask & BIT(i)))
4897 mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
4898 else
4899 mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
4900 }
4901
4902 if (ar->cfg_tx_chainmask <= 1)
4903 vht_cap.cap &= ~IEEE80211_VHT_CAP_TXSTBC;
4904
4905 vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
4906 vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
4907
4908 /* If we are supporting 160Mhz or 80+80, then the NIC may be able to do
4909 * a restricted NSS for 160 or 80+80 vs what it can do for 80Mhz. Give
4910 * user-space a clue if that is the case.
4911 */
4912 if ((vht_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) &&
4913 (hw->vht160_mcs_rx_highest != 0 ||
4914 hw->vht160_mcs_tx_highest != 0)) {
4915 vht_cap.vht_mcs.rx_highest = cpu_to_le16(hw->vht160_mcs_rx_highest);
4916 vht_cap.vht_mcs.tx_highest = cpu_to_le16(hw->vht160_mcs_tx_highest);
4917 }
4918
4919 return vht_cap;
4920 }
4921
ath10k_get_ht_cap(struct ath10k * ar)4922 static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
4923 {
4924 int i;
4925 struct ieee80211_sta_ht_cap ht_cap = {0};
4926
4927 if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
4928 return ht_cap;
4929
4930 ht_cap.ht_supported = 1;
4931 ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
4932 ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
4933 ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
4934 ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
4935 ht_cap.cap |=
4936 WLAN_HT_CAP_SM_PS_DISABLED << IEEE80211_HT_CAP_SM_PS_SHIFT;
4937
4938 if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
4939 ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
4940
4941 if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
4942 ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
4943
4944 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
4945 u32 smps;
4946
4947 smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
4948 smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
4949
4950 ht_cap.cap |= smps;
4951 }
4952
4953 if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC && (ar->cfg_tx_chainmask > 1))
4954 ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
4955
4956 if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
4957 u32 stbc;
4958
4959 stbc = ar->ht_cap_info;
4960 stbc &= WMI_HT_CAP_RX_STBC;
4961 stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
4962 stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
4963 stbc &= IEEE80211_HT_CAP_RX_STBC;
4964
4965 ht_cap.cap |= stbc;
4966 }
4967
4968 if (ar->ht_cap_info & WMI_HT_CAP_LDPC || (ar->ht_cap_info &
4969 WMI_HT_CAP_RX_LDPC && (ar->ht_cap_info & WMI_HT_CAP_TX_LDPC)))
4970 ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
4971
4972 if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
4973 ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
4974
4975 /* max AMSDU is implicitly taken from vht_cap_info */
4976 if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
4977 ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
4978
4979 for (i = 0; i < ar->num_rf_chains; i++) {
4980 if (ar->cfg_rx_chainmask & BIT(i))
4981 ht_cap.mcs.rx_mask[i] = 0xFF;
4982 }
4983
4984 ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
4985
4986 return ht_cap;
4987 }
4988
ath10k_mac_setup_ht_vht_cap(struct ath10k * ar)4989 static void ath10k_mac_setup_ht_vht_cap(struct ath10k *ar)
4990 {
4991 struct ieee80211_supported_band *band;
4992 struct ieee80211_sta_vht_cap vht_cap;
4993 struct ieee80211_sta_ht_cap ht_cap;
4994
4995 ht_cap = ath10k_get_ht_cap(ar);
4996 vht_cap = ath10k_create_vht_cap(ar);
4997
4998 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
4999 band = &ar->mac.sbands[NL80211_BAND_2GHZ];
5000 band->ht_cap = ht_cap;
5001 }
5002 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
5003 band = &ar->mac.sbands[NL80211_BAND_5GHZ];
5004 band->ht_cap = ht_cap;
5005 band->vht_cap = vht_cap;
5006 }
5007 }
5008
__ath10k_set_antenna(struct ath10k * ar,u32 tx_ant,u32 rx_ant)5009 static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
5010 {
5011 int ret;
5012 bool is_valid_tx_chain_mask, is_valid_rx_chain_mask;
5013
5014 lockdep_assert_held(&ar->conf_mutex);
5015
5016 is_valid_tx_chain_mask = ath10k_check_chain_mask(ar, tx_ant, "tx");
5017 is_valid_rx_chain_mask = ath10k_check_chain_mask(ar, rx_ant, "rx");
5018
5019 if (!is_valid_tx_chain_mask || !is_valid_rx_chain_mask)
5020 return -EINVAL;
5021
5022 ar->cfg_tx_chainmask = tx_ant;
5023 ar->cfg_rx_chainmask = rx_ant;
5024
5025 if ((ar->state != ATH10K_STATE_ON) &&
5026 (ar->state != ATH10K_STATE_RESTARTED))
5027 return 0;
5028
5029 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
5030 tx_ant);
5031 if (ret) {
5032 ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
5033 ret, tx_ant);
5034 return ret;
5035 }
5036
5037 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
5038 rx_ant);
5039 if (ret) {
5040 ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
5041 ret, rx_ant);
5042 return ret;
5043 }
5044
5045 /* Reload HT/VHT capability */
5046 ath10k_mac_setup_ht_vht_cap(ar);
5047
5048 return 0;
5049 }
5050
ath10k_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)5051 static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
5052 {
5053 struct ath10k *ar = hw->priv;
5054 int ret;
5055
5056 mutex_lock(&ar->conf_mutex);
5057 ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
5058 mutex_unlock(&ar->conf_mutex);
5059 return ret;
5060 }
5061
__ath10k_fetch_bb_timing_dt(struct ath10k * ar,struct wmi_bb_timing_cfg_arg * bb_timing)5062 static int __ath10k_fetch_bb_timing_dt(struct ath10k *ar,
5063 struct wmi_bb_timing_cfg_arg *bb_timing)
5064 {
5065 struct device_node *node;
5066 const char *fem_name;
5067 int ret;
5068
5069 node = ar->dev->of_node;
5070 if (!node)
5071 return -ENOENT;
5072
5073 ret = of_property_read_string_index(node, "ext-fem-name", 0, &fem_name);
5074 if (ret)
5075 return -ENOENT;
5076
5077 /*
5078 * If external Front End module used in hardware, then default base band timing
5079 * parameter cannot be used since they were fine tuned for reference hardware,
5080 * so choosing different value suitable for that external FEM.
5081 */
5082 if (!strcmp("microsemi-lx5586", fem_name)) {
5083 bb_timing->bb_tx_timing = 0x00;
5084 bb_timing->bb_xpa_timing = 0x0101;
5085 } else {
5086 return -ENOENT;
5087 }
5088
5089 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot bb_tx_timing 0x%x bb_xpa_timing 0x%x\n",
5090 bb_timing->bb_tx_timing, bb_timing->bb_xpa_timing);
5091 return 0;
5092 }
5093
ath10k_mac_rfkill_config(struct ath10k * ar)5094 static int ath10k_mac_rfkill_config(struct ath10k *ar)
5095 {
5096 u32 param;
5097 int ret;
5098
5099 if (ar->hw_values->rfkill_pin == 0) {
5100 ath10k_warn(ar, "ath10k does not support hardware rfkill with this device\n");
5101 return -EOPNOTSUPP;
5102 }
5103
5104 ath10k_dbg(ar, ATH10K_DBG_MAC,
5105 "mac rfkill_pin %d rfkill_cfg %d rfkill_on_level %d",
5106 ar->hw_values->rfkill_pin, ar->hw_values->rfkill_cfg,
5107 ar->hw_values->rfkill_on_level);
5108
5109 param = FIELD_PREP(WMI_TLV_RFKILL_CFG_RADIO_LEVEL,
5110 ar->hw_values->rfkill_on_level) |
5111 FIELD_PREP(WMI_TLV_RFKILL_CFG_GPIO_PIN_NUM,
5112 ar->hw_values->rfkill_pin) |
5113 FIELD_PREP(WMI_TLV_RFKILL_CFG_PIN_AS_GPIO,
5114 ar->hw_values->rfkill_cfg);
5115
5116 ret = ath10k_wmi_pdev_set_param(ar,
5117 ar->wmi.pdev_param->rfkill_config,
5118 param);
5119 if (ret) {
5120 ath10k_warn(ar,
5121 "failed to set rfkill config 0x%x: %d\n",
5122 param, ret);
5123 return ret;
5124 }
5125 return 0;
5126 }
5127
ath10k_mac_rfkill_enable_radio(struct ath10k * ar,bool enable)5128 int ath10k_mac_rfkill_enable_radio(struct ath10k *ar, bool enable)
5129 {
5130 enum wmi_tlv_rfkill_enable_radio param;
5131 int ret;
5132
5133 if (enable)
5134 param = WMI_TLV_RFKILL_ENABLE_RADIO_ON;
5135 else
5136 param = WMI_TLV_RFKILL_ENABLE_RADIO_OFF;
5137
5138 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac rfkill enable %d", param);
5139
5140 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rfkill_enable,
5141 param);
5142 if (ret) {
5143 ath10k_warn(ar, "failed to set rfkill enable param %d: %d\n",
5144 param, ret);
5145 return ret;
5146 }
5147
5148 return 0;
5149 }
5150
ath10k_start(struct ieee80211_hw * hw)5151 static int ath10k_start(struct ieee80211_hw *hw)
5152 {
5153 struct ath10k *ar = hw->priv;
5154 u32 param;
5155 int ret = 0;
5156 struct wmi_bb_timing_cfg_arg bb_timing = {0};
5157
5158 /*
5159 * This makes sense only when restarting hw. It is harmless to call
5160 * unconditionally. This is necessary to make sure no HTT/WMI tx
5161 * commands will be submitted while restarting.
5162 */
5163 ath10k_drain_tx(ar);
5164
5165 mutex_lock(&ar->conf_mutex);
5166
5167 switch (ar->state) {
5168 case ATH10K_STATE_OFF:
5169 ar->state = ATH10K_STATE_ON;
5170 break;
5171 case ATH10K_STATE_RESTARTING:
5172 ar->state = ATH10K_STATE_RESTARTED;
5173 break;
5174 case ATH10K_STATE_ON:
5175 case ATH10K_STATE_RESTARTED:
5176 case ATH10K_STATE_WEDGED:
5177 WARN_ON(1);
5178 ret = -EINVAL;
5179 goto err;
5180 case ATH10K_STATE_UTF:
5181 ret = -EBUSY;
5182 goto err;
5183 }
5184
5185 spin_lock_bh(&ar->data_lock);
5186
5187 if (ar->hw_rfkill_on) {
5188 ar->hw_rfkill_on = false;
5189 spin_unlock_bh(&ar->data_lock);
5190 goto err;
5191 }
5192
5193 spin_unlock_bh(&ar->data_lock);
5194
5195 ret = ath10k_hif_power_up(ar, ATH10K_FIRMWARE_MODE_NORMAL);
5196 if (ret) {
5197 ath10k_err(ar, "Could not init hif: %d\n", ret);
5198 goto err_off;
5199 }
5200
5201 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL,
5202 &ar->normal_mode_fw);
5203 if (ret) {
5204 ath10k_err(ar, "Could not init core: %d\n", ret);
5205 goto err_power_down;
5206 }
5207
5208 if (ar->sys_cap_info & WMI_TLV_SYS_CAP_INFO_RFKILL) {
5209 ret = ath10k_mac_rfkill_config(ar);
5210 if (ret && ret != -EOPNOTSUPP) {
5211 ath10k_warn(ar, "failed to configure rfkill: %d", ret);
5212 goto err_core_stop;
5213 }
5214 }
5215
5216 param = ar->wmi.pdev_param->pmf_qos;
5217 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
5218 if (ret) {
5219 ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
5220 goto err_core_stop;
5221 }
5222
5223 param = ar->wmi.pdev_param->dynamic_bw;
5224 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
5225 if (ret) {
5226 ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
5227 goto err_core_stop;
5228 }
5229
5230 if (test_bit(WMI_SERVICE_SPOOF_MAC_SUPPORT, ar->wmi.svc_map)) {
5231 ret = ath10k_wmi_scan_prob_req_oui(ar, ar->mac_addr);
5232 if (ret) {
5233 ath10k_err(ar, "failed to set prob req oui: %i\n", ret);
5234 goto err_core_stop;
5235 }
5236 }
5237
5238 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
5239 ret = ath10k_wmi_adaptive_qcs(ar, true);
5240 if (ret) {
5241 ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
5242 ret);
5243 goto err_core_stop;
5244 }
5245 }
5246
5247 if (test_bit(WMI_SERVICE_BURST, ar->wmi.svc_map)) {
5248 param = ar->wmi.pdev_param->burst_enable;
5249 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
5250 if (ret) {
5251 ath10k_warn(ar, "failed to disable burst: %d\n", ret);
5252 goto err_core_stop;
5253 }
5254 }
5255
5256 param = ar->wmi.pdev_param->idle_ps_config;
5257 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
5258 if (ret && ret != -EOPNOTSUPP) {
5259 ath10k_warn(ar, "failed to enable idle_ps_config: %d\n", ret);
5260 goto err_core_stop;
5261 }
5262
5263 __ath10k_set_antenna(ar, ar->cfg_tx_chainmask, ar->cfg_rx_chainmask);
5264
5265 /*
5266 * By default FW set ARP frames ac to voice (6). In that case ARP
5267 * exchange is not working properly for UAPSD enabled AP. ARP requests
5268 * which arrives with access category 0 are processed by network stack
5269 * and send back with access category 0, but FW changes access category
5270 * to 6. Set ARP frames access category to best effort (0) solves
5271 * this problem.
5272 */
5273
5274 param = ar->wmi.pdev_param->arp_ac_override;
5275 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
5276 if (ret) {
5277 ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
5278 ret);
5279 goto err_core_stop;
5280 }
5281
5282 if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA,
5283 ar->running_fw->fw_file.fw_features)) {
5284 ret = ath10k_wmi_pdev_enable_adaptive_cca(ar, 1,
5285 WMI_CCA_DETECT_LEVEL_AUTO,
5286 WMI_CCA_DETECT_MARGIN_AUTO);
5287 if (ret) {
5288 ath10k_warn(ar, "failed to enable adaptive cca: %d\n",
5289 ret);
5290 goto err_core_stop;
5291 }
5292 }
5293
5294 param = ar->wmi.pdev_param->ani_enable;
5295 ret = ath10k_wmi_pdev_set_param(ar, param, 1);
5296 if (ret) {
5297 ath10k_warn(ar, "failed to enable ani by default: %d\n",
5298 ret);
5299 goto err_core_stop;
5300 }
5301
5302 ar->ani_enabled = true;
5303
5304 if (ath10k_peer_stats_enabled(ar)) {
5305 param = ar->wmi.pdev_param->peer_stats_update_period;
5306 ret = ath10k_wmi_pdev_set_param(ar, param,
5307 PEER_DEFAULT_STATS_UPDATE_PERIOD);
5308 if (ret) {
5309 ath10k_warn(ar,
5310 "failed to set peer stats period : %d\n",
5311 ret);
5312 goto err_core_stop;
5313 }
5314 }
5315
5316 param = ar->wmi.pdev_param->enable_btcoex;
5317 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
5318 test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
5319 ar->running_fw->fw_file.fw_features) &&
5320 ar->coex_support) {
5321 ret = ath10k_wmi_pdev_set_param(ar, param, 0);
5322 if (ret) {
5323 ath10k_warn(ar,
5324 "failed to set btcoex param: %d\n", ret);
5325 goto err_core_stop;
5326 }
5327 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
5328 }
5329
5330 if (test_bit(WMI_SERVICE_BB_TIMING_CONFIG_SUPPORT, ar->wmi.svc_map)) {
5331 ret = __ath10k_fetch_bb_timing_dt(ar, &bb_timing);
5332 if (!ret) {
5333 ret = ath10k_wmi_pdev_bb_timing(ar, &bb_timing);
5334 if (ret) {
5335 ath10k_warn(ar,
5336 "failed to set bb timings: %d\n",
5337 ret);
5338 goto err_core_stop;
5339 }
5340 }
5341 }
5342
5343 ar->num_started_vdevs = 0;
5344 ath10k_regd_update(ar);
5345
5346 ath10k_spectral_start(ar);
5347 ath10k_thermal_set_throttling(ar);
5348
5349 ar->radar_conf_state = ATH10K_RADAR_CONFIRMATION_IDLE;
5350
5351 mutex_unlock(&ar->conf_mutex);
5352 return 0;
5353
5354 err_core_stop:
5355 ath10k_core_stop(ar);
5356
5357 err_power_down:
5358 ath10k_hif_power_down(ar);
5359
5360 err_off:
5361 ar->state = ATH10K_STATE_OFF;
5362
5363 err:
5364 mutex_unlock(&ar->conf_mutex);
5365 return ret;
5366 }
5367
ath10k_stop(struct ieee80211_hw * hw)5368 static void ath10k_stop(struct ieee80211_hw *hw)
5369 {
5370 struct ath10k *ar = hw->priv;
5371 u32 opt;
5372
5373 ath10k_drain_tx(ar);
5374
5375 mutex_lock(&ar->conf_mutex);
5376 if (ar->state != ATH10K_STATE_OFF) {
5377 if (!ar->hw_rfkill_on) {
5378 /* If the current driver state is RESTARTING but not yet
5379 * fully RESTARTED because of incoming suspend event,
5380 * then ath10k_halt() is already called via
5381 * ath10k_core_restart() and should not be called here.
5382 */
5383 if (ar->state != ATH10K_STATE_RESTARTING) {
5384 ath10k_halt(ar);
5385 } else {
5386 /* Suspending here, because when in RESTARTING
5387 * state, ath10k_core_stop() skips
5388 * ath10k_wait_for_suspend().
5389 */
5390 opt = WMI_PDEV_SUSPEND_AND_DISABLE_INTR;
5391 ath10k_wait_for_suspend(ar, opt);
5392 }
5393 }
5394 ar->state = ATH10K_STATE_OFF;
5395 }
5396 mutex_unlock(&ar->conf_mutex);
5397
5398 cancel_work_sync(&ar->set_coverage_class_work);
5399 cancel_delayed_work_sync(&ar->scan.timeout);
5400 cancel_work_sync(&ar->restart_work);
5401 }
5402
ath10k_config_ps(struct ath10k * ar)5403 static int ath10k_config_ps(struct ath10k *ar)
5404 {
5405 struct ath10k_vif *arvif;
5406 int ret = 0;
5407
5408 lockdep_assert_held(&ar->conf_mutex);
5409
5410 list_for_each_entry(arvif, &ar->arvifs, list) {
5411 ret = ath10k_mac_vif_setup_ps(arvif);
5412 if (ret) {
5413 ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
5414 break;
5415 }
5416 }
5417
5418 return ret;
5419 }
5420
ath10k_config(struct ieee80211_hw * hw,u32 changed)5421 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
5422 {
5423 struct ath10k *ar = hw->priv;
5424 struct ieee80211_conf *conf = &hw->conf;
5425 int ret = 0;
5426
5427 mutex_lock(&ar->conf_mutex);
5428
5429 if (changed & IEEE80211_CONF_CHANGE_PS)
5430 ath10k_config_ps(ar);
5431
5432 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
5433 ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
5434 ret = ath10k_monitor_recalc(ar);
5435 if (ret)
5436 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5437 }
5438
5439 mutex_unlock(&ar->conf_mutex);
5440 return ret;
5441 }
5442
get_nss_from_chainmask(u16 chain_mask)5443 static u32 get_nss_from_chainmask(u16 chain_mask)
5444 {
5445 if ((chain_mask & 0xf) == 0xf)
5446 return 4;
5447 else if ((chain_mask & 0x7) == 0x7)
5448 return 3;
5449 else if ((chain_mask & 0x3) == 0x3)
5450 return 2;
5451 return 1;
5452 }
5453
ath10k_mac_set_txbf_conf(struct ath10k_vif * arvif)5454 static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
5455 {
5456 u32 value = 0;
5457 struct ath10k *ar = arvif->ar;
5458 int nsts;
5459 int sound_dim;
5460
5461 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
5462 return 0;
5463
5464 nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
5465 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
5466 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
5467 value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
5468
5469 sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
5470 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
5471 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
5472 value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
5473
5474 if (!value)
5475 return 0;
5476
5477 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
5478 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
5479
5480 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
5481 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
5482 WMI_VDEV_PARAM_TXBF_SU_TX_BFER);
5483
5484 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
5485 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
5486
5487 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
5488 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
5489 WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);
5490
5491 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
5492 ar->wmi.vdev_param->txbf, value);
5493 }
5494
ath10k_update_vif_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif)5495 static void ath10k_update_vif_offload(struct ieee80211_hw *hw,
5496 struct ieee80211_vif *vif)
5497 {
5498 struct ath10k_vif *arvif = (void *)vif->drv_priv;
5499 struct ath10k *ar = hw->priv;
5500 u32 vdev_param;
5501 int ret;
5502
5503 if (ath10k_frame_mode != ATH10K_HW_TXRX_ETHERNET ||
5504 ar->wmi.vdev_param->tx_encap_type == WMI_VDEV_PARAM_UNSUPPORTED ||
5505 (vif->type != NL80211_IFTYPE_STATION &&
5506 vif->type != NL80211_IFTYPE_AP))
5507 vif->offload_flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
5508
5509 vdev_param = ar->wmi.vdev_param->tx_encap_type;
5510 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5511 ATH10K_HW_TXRX_NATIVE_WIFI);
5512 /* 10.X firmware does not support this VDEV parameter. Do not warn */
5513 if (ret && ret != -EOPNOTSUPP) {
5514 ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
5515 arvif->vdev_id, ret);
5516 }
5517 }
5518
5519 /*
5520 * TODO:
5521 * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
5522 * because we will send mgmt frames without CCK. This requirement
5523 * for P2P_FIND/GO_NEG should be handled by checking CCK flag
5524 * in the TX packet.
5525 */
ath10k_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)5526 static int ath10k_add_interface(struct ieee80211_hw *hw,
5527 struct ieee80211_vif *vif)
5528 {
5529 struct ath10k *ar = hw->priv;
5530 struct ath10k_vif *arvif = (void *)vif->drv_priv;
5531 struct ath10k_peer *peer;
5532 enum wmi_sta_powersave_param param;
5533 int ret = 0;
5534 u32 value;
5535 int bit;
5536 int i;
5537 u32 vdev_param;
5538
5539 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
5540
5541 mutex_lock(&ar->conf_mutex);
5542
5543 memset(arvif, 0, sizeof(*arvif));
5544 ath10k_mac_txq_init(vif->txq);
5545
5546 arvif->ar = ar;
5547 arvif->vif = vif;
5548
5549 INIT_LIST_HEAD(&arvif->list);
5550 INIT_WORK(&arvif->ap_csa_work, ath10k_mac_vif_ap_csa_work);
5551 INIT_DELAYED_WORK(&arvif->connection_loss_work,
5552 ath10k_mac_vif_sta_connection_loss_work);
5553
5554 for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
5555 arvif->bitrate_mask.control[i].legacy = 0xffffffff;
5556 memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
5557 sizeof(arvif->bitrate_mask.control[i].ht_mcs));
5558 memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
5559 sizeof(arvif->bitrate_mask.control[i].vht_mcs));
5560 }
5561
5562 if (ar->num_peers >= ar->max_num_peers) {
5563 ath10k_warn(ar, "refusing vdev creation due to insufficient peer entry resources in firmware\n");
5564 ret = -ENOBUFS;
5565 goto err;
5566 }
5567
5568 if (ar->free_vdev_map == 0) {
5569 ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
5570 ret = -EBUSY;
5571 goto err;
5572 }
5573 bit = __ffs64(ar->free_vdev_map);
5574
5575 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
5576 bit, ar->free_vdev_map);
5577
5578 arvif->vdev_id = bit;
5579 arvif->vdev_subtype =
5580 ath10k_wmi_get_vdev_subtype(ar, WMI_VDEV_SUBTYPE_NONE);
5581
5582 switch (vif->type) {
5583 case NL80211_IFTYPE_P2P_DEVICE:
5584 arvif->vdev_type = WMI_VDEV_TYPE_STA;
5585 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
5586 (ar, WMI_VDEV_SUBTYPE_P2P_DEVICE);
5587 break;
5588 case NL80211_IFTYPE_UNSPECIFIED:
5589 case NL80211_IFTYPE_STATION:
5590 arvif->vdev_type = WMI_VDEV_TYPE_STA;
5591 if (vif->p2p)
5592 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
5593 (ar, WMI_VDEV_SUBTYPE_P2P_CLIENT);
5594 break;
5595 case NL80211_IFTYPE_ADHOC:
5596 arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
5597 break;
5598 case NL80211_IFTYPE_MESH_POINT:
5599 if (test_bit(WMI_SERVICE_MESH_11S, ar->wmi.svc_map)) {
5600 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
5601 (ar, WMI_VDEV_SUBTYPE_MESH_11S);
5602 } else if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
5603 ret = -EINVAL;
5604 ath10k_warn(ar, "must load driver with rawmode=1 to add mesh interfaces\n");
5605 goto err;
5606 }
5607 arvif->vdev_type = WMI_VDEV_TYPE_AP;
5608 break;
5609 case NL80211_IFTYPE_AP:
5610 arvif->vdev_type = WMI_VDEV_TYPE_AP;
5611
5612 if (vif->p2p)
5613 arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
5614 (ar, WMI_VDEV_SUBTYPE_P2P_GO);
5615 break;
5616 case NL80211_IFTYPE_MONITOR:
5617 arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
5618 break;
5619 default:
5620 WARN_ON(1);
5621 break;
5622 }
5623
5624 /* Using vdev_id as queue number will make it very easy to do per-vif
5625 * tx queue locking. This shouldn't wrap due to interface combinations
5626 * but do a modulo for correctness sake and prevent using offchannel tx
5627 * queues for regular vif tx.
5628 */
5629 vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
5630 for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
5631 vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
5632
5633 /* Some firmware revisions don't wait for beacon tx completion before
5634 * sending another SWBA event. This could lead to hardware using old
5635 * (freed) beacon data in some cases, e.g. tx credit starvation
5636 * combined with missed TBTT. This is very rare.
5637 *
5638 * On non-IOMMU-enabled hosts this could be a possible security issue
5639 * because hw could beacon some random data on the air. On
5640 * IOMMU-enabled hosts DMAR faults would occur in most cases and target
5641 * device would crash.
5642 *
5643 * Since there are no beacon tx completions (implicit nor explicit)
5644 * propagated to host the only workaround for this is to allocate a
5645 * DMA-coherent buffer for a lifetime of a vif and use it for all
5646 * beacon tx commands. Worst case for this approach is some beacons may
5647 * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
5648 */
5649 if (vif->type == NL80211_IFTYPE_ADHOC ||
5650 vif->type == NL80211_IFTYPE_MESH_POINT ||
5651 vif->type == NL80211_IFTYPE_AP) {
5652 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
5653 arvif->beacon_buf = kmalloc(IEEE80211_MAX_FRAME_LEN,
5654 GFP_KERNEL);
5655
5656 /* Using a kernel pointer in place of a dma_addr_t
5657 * token can lead to undefined behavior if that
5658 * makes it into cache management functions. Use a
5659 * known-invalid address token instead, which
5660 * avoids the warning and makes it easier to catch
5661 * bugs if it does end up getting used.
5662 */
5663 arvif->beacon_paddr = DMA_MAPPING_ERROR;
5664 } else {
5665 arvif->beacon_buf =
5666 dma_alloc_coherent(ar->dev,
5667 IEEE80211_MAX_FRAME_LEN,
5668 &arvif->beacon_paddr,
5669 GFP_ATOMIC);
5670 }
5671 if (!arvif->beacon_buf) {
5672 ret = -ENOMEM;
5673 ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
5674 ret);
5675 goto err;
5676 }
5677 }
5678 if (test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags))
5679 arvif->nohwcrypt = true;
5680
5681 if (arvif->nohwcrypt &&
5682 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
5683 ret = -EINVAL;
5684 ath10k_warn(ar, "cryptmode module param needed for sw crypto\n");
5685 goto err;
5686 }
5687
5688 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
5689 arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
5690 arvif->beacon_buf ? "single-buf" : "per-skb");
5691
5692 ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
5693 arvif->vdev_subtype, vif->addr);
5694 if (ret) {
5695 ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
5696 arvif->vdev_id, ret);
5697 goto err;
5698 }
5699
5700 if (test_bit(WMI_SERVICE_VDEV_DISABLE_4_ADDR_SRC_LRN_SUPPORT,
5701 ar->wmi.svc_map)) {
5702 vdev_param = ar->wmi.vdev_param->disable_4addr_src_lrn;
5703 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5704 WMI_VDEV_DISABLE_4_ADDR_SRC_LRN);
5705 if (ret && ret != -EOPNOTSUPP) {
5706 ath10k_warn(ar, "failed to disable 4addr src lrn vdev %i: %d\n",
5707 arvif->vdev_id, ret);
5708 }
5709 }
5710
5711 ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
5712 spin_lock_bh(&ar->data_lock);
5713 list_add(&arvif->list, &ar->arvifs);
5714 spin_unlock_bh(&ar->data_lock);
5715
5716 /* It makes no sense to have firmware do keepalives. mac80211 already
5717 * takes care of this with idle connection polling.
5718 */
5719 ret = ath10k_mac_vif_disable_keepalive(arvif);
5720 if (ret) {
5721 ath10k_warn(ar, "failed to disable keepalive on vdev %i: %d\n",
5722 arvif->vdev_id, ret);
5723 goto err_vdev_delete;
5724 }
5725
5726 arvif->def_wep_key_idx = -1;
5727
5728 ath10k_update_vif_offload(hw, vif);
5729
5730 /* Configuring number of spatial stream for monitor interface is causing
5731 * target assert in qca9888 and qca6174.
5732 */
5733 if (ar->cfg_tx_chainmask && (vif->type != NL80211_IFTYPE_MONITOR)) {
5734 u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
5735
5736 vdev_param = ar->wmi.vdev_param->nss;
5737 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5738 nss);
5739 if (ret) {
5740 ath10k_warn(ar, "failed to set vdev %i chainmask 0x%x, nss %i: %d\n",
5741 arvif->vdev_id, ar->cfg_tx_chainmask, nss,
5742 ret);
5743 goto err_vdev_delete;
5744 }
5745 }
5746
5747 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5748 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5749 ret = ath10k_peer_create(ar, vif, NULL, arvif->vdev_id,
5750 vif->addr, WMI_PEER_TYPE_DEFAULT);
5751 if (ret) {
5752 ath10k_warn(ar, "failed to create vdev %i peer for AP/IBSS: %d\n",
5753 arvif->vdev_id, ret);
5754 goto err_vdev_delete;
5755 }
5756
5757 spin_lock_bh(&ar->data_lock);
5758
5759 peer = ath10k_peer_find(ar, arvif->vdev_id, vif->addr);
5760 if (!peer) {
5761 ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
5762 vif->addr, arvif->vdev_id);
5763 spin_unlock_bh(&ar->data_lock);
5764 ret = -ENOENT;
5765 goto err_peer_delete;
5766 }
5767
5768 arvif->peer_id = find_first_bit(peer->peer_ids,
5769 ATH10K_MAX_NUM_PEER_IDS);
5770
5771 spin_unlock_bh(&ar->data_lock);
5772 } else {
5773 arvif->peer_id = HTT_INVALID_PEERID;
5774 }
5775
5776 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
5777 ret = ath10k_mac_set_kickout(arvif);
5778 if (ret) {
5779 ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
5780 arvif->vdev_id, ret);
5781 goto err_peer_delete;
5782 }
5783 }
5784
5785 if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
5786 param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
5787 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
5788 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
5789 param, value);
5790 if (ret) {
5791 ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
5792 arvif->vdev_id, ret);
5793 goto err_peer_delete;
5794 }
5795
5796 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
5797 if (ret) {
5798 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
5799 arvif->vdev_id, ret);
5800 goto err_peer_delete;
5801 }
5802
5803 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
5804 if (ret) {
5805 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
5806 arvif->vdev_id, ret);
5807 goto err_peer_delete;
5808 }
5809 }
5810
5811 ret = ath10k_mac_set_txbf_conf(arvif);
5812 if (ret) {
5813 ath10k_warn(ar, "failed to set txbf for vdev %d: %d\n",
5814 arvif->vdev_id, ret);
5815 goto err_peer_delete;
5816 }
5817
5818 ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
5819 if (ret) {
5820 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
5821 arvif->vdev_id, ret);
5822 goto err_peer_delete;
5823 }
5824
5825 arvif->txpower = vif->bss_conf.txpower;
5826 ret = ath10k_mac_txpower_recalc(ar);
5827 if (ret) {
5828 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
5829 goto err_peer_delete;
5830 }
5831
5832 if (test_bit(WMI_SERVICE_RTT_RESPONDER_ROLE, ar->wmi.svc_map)) {
5833 vdev_param = ar->wmi.vdev_param->rtt_responder_role;
5834 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5835 arvif->ftm_responder);
5836
5837 /* It is harmless to not set FTM role. Do not warn */
5838 if (ret && ret != -EOPNOTSUPP)
5839 ath10k_warn(ar, "failed to set vdev %i FTM Responder: %d\n",
5840 arvif->vdev_id, ret);
5841 }
5842
5843 if (vif->type == NL80211_IFTYPE_MONITOR) {
5844 ar->monitor_arvif = arvif;
5845 ret = ath10k_monitor_recalc(ar);
5846 if (ret) {
5847 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5848 goto err_peer_delete;
5849 }
5850 }
5851
5852 spin_lock_bh(&ar->htt.tx_lock);
5853 if (!ar->tx_paused)
5854 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
5855 spin_unlock_bh(&ar->htt.tx_lock);
5856
5857 mutex_unlock(&ar->conf_mutex);
5858 return 0;
5859
5860 err_peer_delete:
5861 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5862 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5863 ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
5864 ath10k_wait_for_peer_delete_done(ar, arvif->vdev_id,
5865 vif->addr);
5866 }
5867
5868 err_vdev_delete:
5869 ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
5870 ar->free_vdev_map |= 1LL << arvif->vdev_id;
5871 spin_lock_bh(&ar->data_lock);
5872 list_del(&arvif->list);
5873 spin_unlock_bh(&ar->data_lock);
5874
5875 err:
5876 if (arvif->beacon_buf) {
5877 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
5878 kfree(arvif->beacon_buf);
5879 else
5880 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
5881 arvif->beacon_buf,
5882 arvif->beacon_paddr);
5883 arvif->beacon_buf = NULL;
5884 }
5885
5886 mutex_unlock(&ar->conf_mutex);
5887
5888 return ret;
5889 }
5890
ath10k_mac_vif_tx_unlock_all(struct ath10k_vif * arvif)5891 static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
5892 {
5893 int i;
5894
5895 for (i = 0; i < BITS_PER_LONG; i++)
5896 ath10k_mac_vif_tx_unlock(arvif, i);
5897 }
5898
ath10k_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)5899 static void ath10k_remove_interface(struct ieee80211_hw *hw,
5900 struct ieee80211_vif *vif)
5901 {
5902 struct ath10k *ar = hw->priv;
5903 struct ath10k_vif *arvif = (void *)vif->drv_priv;
5904 struct ath10k_peer *peer;
5905 unsigned long time_left;
5906 int ret;
5907 int i;
5908
5909 cancel_work_sync(&arvif->ap_csa_work);
5910 cancel_delayed_work_sync(&arvif->connection_loss_work);
5911
5912 mutex_lock(&ar->conf_mutex);
5913
5914 ret = ath10k_spectral_vif_stop(arvif);
5915 if (ret)
5916 ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
5917 arvif->vdev_id, ret);
5918
5919 ar->free_vdev_map |= 1LL << arvif->vdev_id;
5920 spin_lock_bh(&ar->data_lock);
5921 list_del(&arvif->list);
5922 spin_unlock_bh(&ar->data_lock);
5923
5924 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5925 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5926 ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
5927 vif->addr);
5928 if (ret)
5929 ath10k_warn(ar, "failed to submit AP/IBSS self-peer removal on vdev %i: %d\n",
5930 arvif->vdev_id, ret);
5931
5932 ath10k_wait_for_peer_delete_done(ar, arvif->vdev_id,
5933 vif->addr);
5934 kfree(arvif->u.ap.noa_data);
5935 }
5936
5937 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
5938 arvif->vdev_id);
5939
5940 ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
5941 if (ret)
5942 ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
5943 arvif->vdev_id, ret);
5944
5945 if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
5946 time_left = wait_for_completion_timeout(&ar->vdev_delete_done,
5947 ATH10K_VDEV_DELETE_TIMEOUT_HZ);
5948 if (time_left == 0) {
5949 ath10k_warn(ar, "Timeout in receiving vdev delete response\n");
5950 goto out;
5951 }
5952 }
5953
5954 /* Some firmware revisions don't notify host about self-peer removal
5955 * until after associated vdev is deleted.
5956 */
5957 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
5958 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5959 ret = ath10k_wait_for_peer_deleted(ar, arvif->vdev_id,
5960 vif->addr);
5961 if (ret)
5962 ath10k_warn(ar, "failed to remove AP self-peer on vdev %i: %d\n",
5963 arvif->vdev_id, ret);
5964
5965 spin_lock_bh(&ar->data_lock);
5966 ar->num_peers--;
5967 spin_unlock_bh(&ar->data_lock);
5968 }
5969
5970 spin_lock_bh(&ar->data_lock);
5971 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
5972 peer = ar->peer_map[i];
5973 if (!peer)
5974 continue;
5975
5976 if (peer->vif == vif) {
5977 ath10k_warn(ar, "found vif peer %pM entry on vdev %i after it was supposedly removed\n",
5978 vif->addr, arvif->vdev_id);
5979 peer->vif = NULL;
5980 }
5981 }
5982
5983 /* Clean this up late, less opportunity for firmware to access
5984 * DMA memory we have deleted.
5985 */
5986 ath10k_mac_vif_beacon_cleanup(arvif);
5987 spin_unlock_bh(&ar->data_lock);
5988
5989 ath10k_peer_cleanup(ar, arvif->vdev_id);
5990 ath10k_mac_txq_unref(ar, vif->txq);
5991
5992 if (vif->type == NL80211_IFTYPE_MONITOR) {
5993 ar->monitor_arvif = NULL;
5994 ret = ath10k_monitor_recalc(ar);
5995 if (ret)
5996 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5997 }
5998
5999 ret = ath10k_mac_txpower_recalc(ar);
6000 if (ret)
6001 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
6002
6003 spin_lock_bh(&ar->htt.tx_lock);
6004 ath10k_mac_vif_tx_unlock_all(arvif);
6005 spin_unlock_bh(&ar->htt.tx_lock);
6006
6007 ath10k_mac_txq_unref(ar, vif->txq);
6008
6009 out:
6010 mutex_unlock(&ar->conf_mutex);
6011 }
6012
6013 /*
6014 * FIXME: Has to be verified.
6015 */
6016 #define SUPPORTED_FILTERS \
6017 (FIF_ALLMULTI | \
6018 FIF_CONTROL | \
6019 FIF_PSPOLL | \
6020 FIF_OTHER_BSS | \
6021 FIF_BCN_PRBRESP_PROMISC | \
6022 FIF_PROBE_REQ | \
6023 FIF_FCSFAIL)
6024
ath10k_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)6025 static void ath10k_configure_filter(struct ieee80211_hw *hw,
6026 unsigned int changed_flags,
6027 unsigned int *total_flags,
6028 u64 multicast)
6029 {
6030 struct ath10k *ar = hw->priv;
6031 int ret;
6032
6033 mutex_lock(&ar->conf_mutex);
6034
6035 *total_flags &= SUPPORTED_FILTERS;
6036 ar->filter_flags = *total_flags;
6037
6038 ret = ath10k_monitor_recalc(ar);
6039 if (ret)
6040 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
6041
6042 mutex_unlock(&ar->conf_mutex);
6043 }
6044
ath10k_recalculate_mgmt_rate(struct ath10k * ar,struct ieee80211_vif * vif,struct cfg80211_chan_def * def)6045 static void ath10k_recalculate_mgmt_rate(struct ath10k *ar,
6046 struct ieee80211_vif *vif,
6047 struct cfg80211_chan_def *def)
6048 {
6049 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6050 const struct ieee80211_supported_band *sband;
6051 u8 basic_rate_idx;
6052 int hw_rate_code;
6053 u32 vdev_param;
6054 u16 bitrate;
6055 int ret;
6056
6057 lockdep_assert_held(&ar->conf_mutex);
6058
6059 sband = ar->hw->wiphy->bands[def->chan->band];
6060 basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1;
6061 bitrate = sband->bitrates[basic_rate_idx].bitrate;
6062
6063 hw_rate_code = ath10k_mac_get_rate_hw_value(bitrate);
6064 if (hw_rate_code < 0) {
6065 ath10k_warn(ar, "bitrate not supported %d\n", bitrate);
6066 return;
6067 }
6068
6069 vdev_param = ar->wmi.vdev_param->mgmt_rate;
6070 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6071 hw_rate_code);
6072 if (ret)
6073 ath10k_warn(ar, "failed to set mgmt tx rate %d\n", ret);
6074 }
6075
ath10k_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)6076 static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
6077 struct ieee80211_vif *vif,
6078 struct ieee80211_bss_conf *info,
6079 u64 changed)
6080 {
6081 struct ath10k *ar = hw->priv;
6082 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6083 struct cfg80211_chan_def def;
6084 u32 vdev_param, pdev_param, slottime, preamble;
6085 u16 bitrate, hw_value;
6086 u8 rate, rateidx;
6087 int ret = 0, mcast_rate;
6088 enum nl80211_band band;
6089
6090 mutex_lock(&ar->conf_mutex);
6091
6092 if (changed & BSS_CHANGED_IBSS)
6093 ath10k_control_ibss(arvif, vif);
6094
6095 if (changed & BSS_CHANGED_BEACON_INT) {
6096 arvif->beacon_interval = info->beacon_int;
6097 vdev_param = ar->wmi.vdev_param->beacon_interval;
6098 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6099 arvif->beacon_interval);
6100 ath10k_dbg(ar, ATH10K_DBG_MAC,
6101 "mac vdev %d beacon_interval %d\n",
6102 arvif->vdev_id, arvif->beacon_interval);
6103
6104 if (ret)
6105 ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
6106 arvif->vdev_id, ret);
6107 }
6108
6109 if (changed & BSS_CHANGED_BEACON) {
6110 ath10k_dbg(ar, ATH10K_DBG_MAC,
6111 "vdev %d set beacon tx mode to staggered\n",
6112 arvif->vdev_id);
6113
6114 pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
6115 ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
6116 WMI_BEACON_STAGGERED_MODE);
6117 if (ret)
6118 ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
6119 arvif->vdev_id, ret);
6120
6121 ret = ath10k_mac_setup_bcn_tmpl(arvif);
6122 if (ret)
6123 ath10k_warn(ar, "failed to update beacon template: %d\n",
6124 ret);
6125
6126 if (ieee80211_vif_is_mesh(vif)) {
6127 /* mesh doesn't use SSID but firmware needs it */
6128 strncpy(arvif->u.ap.ssid, "mesh",
6129 sizeof(arvif->u.ap.ssid));
6130 arvif->u.ap.ssid_len = 4;
6131 }
6132 }
6133
6134 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
6135 ret = ath10k_mac_setup_prb_tmpl(arvif);
6136 if (ret)
6137 ath10k_warn(ar, "failed to setup probe resp template on vdev %i: %d\n",
6138 arvif->vdev_id, ret);
6139 }
6140
6141 if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
6142 arvif->dtim_period = info->dtim_period;
6143
6144 ath10k_dbg(ar, ATH10K_DBG_MAC,
6145 "mac vdev %d dtim_period %d\n",
6146 arvif->vdev_id, arvif->dtim_period);
6147
6148 vdev_param = ar->wmi.vdev_param->dtim_period;
6149 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6150 arvif->dtim_period);
6151 if (ret)
6152 ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
6153 arvif->vdev_id, ret);
6154 }
6155
6156 if (changed & BSS_CHANGED_SSID &&
6157 vif->type == NL80211_IFTYPE_AP) {
6158 arvif->u.ap.ssid_len = vif->cfg.ssid_len;
6159 if (vif->cfg.ssid_len)
6160 memcpy(arvif->u.ap.ssid, vif->cfg.ssid,
6161 vif->cfg.ssid_len);
6162 arvif->u.ap.hidden_ssid = info->hidden_ssid;
6163 }
6164
6165 if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
6166 ether_addr_copy(arvif->bssid, info->bssid);
6167
6168 if (changed & BSS_CHANGED_FTM_RESPONDER &&
6169 arvif->ftm_responder != info->ftm_responder &&
6170 test_bit(WMI_SERVICE_RTT_RESPONDER_ROLE, ar->wmi.svc_map)) {
6171 arvif->ftm_responder = info->ftm_responder;
6172
6173 vdev_param = ar->wmi.vdev_param->rtt_responder_role;
6174 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6175 arvif->ftm_responder);
6176
6177 ath10k_dbg(ar, ATH10K_DBG_MAC,
6178 "mac vdev %d ftm_responder %d:ret %d\n",
6179 arvif->vdev_id, arvif->ftm_responder, ret);
6180 }
6181
6182 if (changed & BSS_CHANGED_BEACON_ENABLED)
6183 ath10k_control_beaconing(arvif, info);
6184
6185 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
6186 arvif->use_cts_prot = info->use_cts_prot;
6187
6188 ret = ath10k_recalc_rtscts_prot(arvif);
6189 if (ret)
6190 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
6191 arvif->vdev_id, ret);
6192
6193 if (ath10k_mac_can_set_cts_prot(arvif)) {
6194 ret = ath10k_mac_set_cts_prot(arvif);
6195 if (ret)
6196 ath10k_warn(ar, "failed to set cts protection for vdev %d: %d\n",
6197 arvif->vdev_id, ret);
6198 }
6199 }
6200
6201 if (changed & BSS_CHANGED_ERP_SLOT) {
6202 if (info->use_short_slot)
6203 slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
6204
6205 else
6206 slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
6207
6208 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
6209 arvif->vdev_id, slottime);
6210
6211 vdev_param = ar->wmi.vdev_param->slot_time;
6212 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6213 slottime);
6214 if (ret)
6215 ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
6216 arvif->vdev_id, ret);
6217 }
6218
6219 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
6220 if (info->use_short_preamble)
6221 preamble = WMI_VDEV_PREAMBLE_SHORT;
6222 else
6223 preamble = WMI_VDEV_PREAMBLE_LONG;
6224
6225 ath10k_dbg(ar, ATH10K_DBG_MAC,
6226 "mac vdev %d preamble %dn",
6227 arvif->vdev_id, preamble);
6228
6229 vdev_param = ar->wmi.vdev_param->preamble;
6230 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6231 preamble);
6232 if (ret)
6233 ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
6234 arvif->vdev_id, ret);
6235 }
6236
6237 if (changed & BSS_CHANGED_ASSOC) {
6238 if (vif->cfg.assoc) {
6239 /* Workaround: Make sure monitor vdev is not running
6240 * when associating to prevent some firmware revisions
6241 * (e.g. 10.1 and 10.2) from crashing.
6242 */
6243 if (ar->monitor_started)
6244 ath10k_monitor_stop(ar);
6245 ath10k_bss_assoc(hw, vif, info);
6246 ath10k_monitor_recalc(ar);
6247 } else {
6248 ath10k_bss_disassoc(hw, vif);
6249 }
6250 }
6251
6252 if (changed & BSS_CHANGED_TXPOWER) {
6253 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev_id %i txpower %d\n",
6254 arvif->vdev_id, info->txpower);
6255
6256 arvif->txpower = info->txpower;
6257 ret = ath10k_mac_txpower_recalc(ar);
6258 if (ret)
6259 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
6260 }
6261
6262 if (changed & BSS_CHANGED_PS) {
6263 arvif->ps = vif->cfg.ps;
6264
6265 ret = ath10k_config_ps(ar);
6266 if (ret)
6267 ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
6268 arvif->vdev_id, ret);
6269 }
6270
6271 if (changed & BSS_CHANGED_MCAST_RATE &&
6272 !ath10k_mac_vif_chan(arvif->vif, &def)) {
6273 band = def.chan->band;
6274 mcast_rate = vif->bss_conf.mcast_rate[band];
6275 if (mcast_rate > 0)
6276 rateidx = mcast_rate - 1;
6277 else
6278 rateidx = ffs(vif->bss_conf.basic_rates) - 1;
6279
6280 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
6281 rateidx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
6282
6283 bitrate = ath10k_wmi_legacy_rates[rateidx].bitrate;
6284 hw_value = ath10k_wmi_legacy_rates[rateidx].hw_value;
6285 if (ath10k_mac_bitrate_is_cck(bitrate))
6286 preamble = WMI_RATE_PREAMBLE_CCK;
6287 else
6288 preamble = WMI_RATE_PREAMBLE_OFDM;
6289
6290 rate = ATH10K_HW_RATECODE(hw_value, 0, preamble);
6291
6292 ath10k_dbg(ar, ATH10K_DBG_MAC,
6293 "mac vdev %d mcast_rate %x\n",
6294 arvif->vdev_id, rate);
6295
6296 vdev_param = ar->wmi.vdev_param->mcast_data_rate;
6297 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
6298 vdev_param, rate);
6299 if (ret)
6300 ath10k_warn(ar,
6301 "failed to set mcast rate on vdev %i: %d\n",
6302 arvif->vdev_id, ret);
6303
6304 vdev_param = ar->wmi.vdev_param->bcast_data_rate;
6305 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
6306 vdev_param, rate);
6307 if (ret)
6308 ath10k_warn(ar,
6309 "failed to set bcast rate on vdev %i: %d\n",
6310 arvif->vdev_id, ret);
6311 }
6312
6313 if (changed & BSS_CHANGED_BASIC_RATES &&
6314 !ath10k_mac_vif_chan(arvif->vif, &def))
6315 ath10k_recalculate_mgmt_rate(ar, vif, &def);
6316
6317 mutex_unlock(&ar->conf_mutex);
6318 }
6319
ath10k_mac_op_set_coverage_class(struct ieee80211_hw * hw,s16 value)6320 static void ath10k_mac_op_set_coverage_class(struct ieee80211_hw *hw, s16 value)
6321 {
6322 struct ath10k *ar = hw->priv;
6323
6324 /* This function should never be called if setting the coverage class
6325 * is not supported on this hardware.
6326 */
6327 if (!ar->hw_params.hw_ops->set_coverage_class) {
6328 WARN_ON_ONCE(1);
6329 return;
6330 }
6331 ar->hw_params.hw_ops->set_coverage_class(ar, value);
6332 }
6333
6334 struct ath10k_mac_tdls_iter_data {
6335 u32 num_tdls_stations;
6336 struct ieee80211_vif *curr_vif;
6337 };
6338
ath10k_mac_tdls_vif_stations_count_iter(void * data,struct ieee80211_sta * sta)6339 static void ath10k_mac_tdls_vif_stations_count_iter(void *data,
6340 struct ieee80211_sta *sta)
6341 {
6342 struct ath10k_mac_tdls_iter_data *iter_data = data;
6343 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
6344 struct ieee80211_vif *sta_vif = arsta->arvif->vif;
6345
6346 if (sta->tdls && sta_vif == iter_data->curr_vif)
6347 iter_data->num_tdls_stations++;
6348 }
6349
ath10k_mac_tdls_vif_stations_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif)6350 static int ath10k_mac_tdls_vif_stations_count(struct ieee80211_hw *hw,
6351 struct ieee80211_vif *vif)
6352 {
6353 struct ath10k_mac_tdls_iter_data data = {};
6354
6355 data.curr_vif = vif;
6356
6357 ieee80211_iterate_stations_atomic(hw,
6358 ath10k_mac_tdls_vif_stations_count_iter,
6359 &data);
6360 return data.num_tdls_stations;
6361 }
6362
ath10k_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)6363 static int ath10k_hw_scan(struct ieee80211_hw *hw,
6364 struct ieee80211_vif *vif,
6365 struct ieee80211_scan_request *hw_req)
6366 {
6367 struct ath10k *ar = hw->priv;
6368 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6369 struct cfg80211_scan_request *req = &hw_req->req;
6370 struct wmi_start_scan_arg arg;
6371 int ret = 0;
6372 int i;
6373 u32 scan_timeout;
6374
6375 mutex_lock(&ar->conf_mutex);
6376
6377 if (ath10k_mac_tdls_vif_stations_count(hw, vif) > 0) {
6378 ret = -EBUSY;
6379 goto exit;
6380 }
6381
6382 spin_lock_bh(&ar->data_lock);
6383 switch (ar->scan.state) {
6384 case ATH10K_SCAN_IDLE:
6385 reinit_completion(&ar->scan.started);
6386 reinit_completion(&ar->scan.completed);
6387 ar->scan.state = ATH10K_SCAN_STARTING;
6388 ar->scan.is_roc = false;
6389 ar->scan.vdev_id = arvif->vdev_id;
6390 ret = 0;
6391 break;
6392 case ATH10K_SCAN_STARTING:
6393 case ATH10K_SCAN_RUNNING:
6394 case ATH10K_SCAN_ABORTING:
6395 ret = -EBUSY;
6396 break;
6397 }
6398 spin_unlock_bh(&ar->data_lock);
6399
6400 if (ret)
6401 goto exit;
6402
6403 memset(&arg, 0, sizeof(arg));
6404 ath10k_wmi_start_scan_init(ar, &arg);
6405 arg.vdev_id = arvif->vdev_id;
6406 arg.scan_id = ATH10K_SCAN_ID;
6407
6408 if (req->ie_len) {
6409 arg.ie_len = req->ie_len;
6410 memcpy(arg.ie, req->ie, arg.ie_len);
6411 }
6412
6413 if (req->n_ssids) {
6414 arg.n_ssids = req->n_ssids;
6415 for (i = 0; i < arg.n_ssids; i++) {
6416 arg.ssids[i].len = req->ssids[i].ssid_len;
6417 arg.ssids[i].ssid = req->ssids[i].ssid;
6418 }
6419 } else {
6420 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
6421 }
6422
6423 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6424 arg.scan_ctrl_flags |= WMI_SCAN_ADD_SPOOFED_MAC_IN_PROBE_REQ;
6425 ether_addr_copy(arg.mac_addr.addr, req->mac_addr);
6426 ether_addr_copy(arg.mac_mask.addr, req->mac_addr_mask);
6427 }
6428
6429 if (req->n_channels) {
6430 arg.n_channels = req->n_channels;
6431 for (i = 0; i < arg.n_channels; i++)
6432 arg.channels[i] = req->channels[i]->center_freq;
6433 }
6434
6435 /* if duration is set, default dwell times will be overwritten */
6436 if (req->duration) {
6437 arg.dwell_time_active = req->duration;
6438 arg.dwell_time_passive = req->duration;
6439 arg.burst_duration_ms = req->duration;
6440
6441 scan_timeout = min_t(u32, arg.max_rest_time *
6442 (arg.n_channels - 1) + (req->duration +
6443 ATH10K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD) *
6444 arg.n_channels, arg.max_scan_time);
6445 } else {
6446 scan_timeout = arg.max_scan_time;
6447 }
6448
6449 /* Add a 200ms margin to account for event/command processing */
6450 scan_timeout += 200;
6451
6452 ret = ath10k_start_scan(ar, &arg);
6453 if (ret) {
6454 ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
6455 spin_lock_bh(&ar->data_lock);
6456 ar->scan.state = ATH10K_SCAN_IDLE;
6457 spin_unlock_bh(&ar->data_lock);
6458 }
6459
6460 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
6461 msecs_to_jiffies(scan_timeout));
6462
6463 exit:
6464 mutex_unlock(&ar->conf_mutex);
6465 return ret;
6466 }
6467
ath10k_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)6468 static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
6469 struct ieee80211_vif *vif)
6470 {
6471 struct ath10k *ar = hw->priv;
6472
6473 mutex_lock(&ar->conf_mutex);
6474 ath10k_scan_abort(ar);
6475 mutex_unlock(&ar->conf_mutex);
6476
6477 cancel_delayed_work_sync(&ar->scan.timeout);
6478 }
6479
ath10k_set_key_h_def_keyidx(struct ath10k * ar,struct ath10k_vif * arvif,enum set_key_cmd cmd,struct ieee80211_key_conf * key)6480 static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
6481 struct ath10k_vif *arvif,
6482 enum set_key_cmd cmd,
6483 struct ieee80211_key_conf *key)
6484 {
6485 u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
6486 int ret;
6487
6488 /* 10.1 firmware branch requires default key index to be set to group
6489 * key index after installing it. Otherwise FW/HW Txes corrupted
6490 * frames with multi-vif APs. This is not required for main firmware
6491 * branch (e.g. 636).
6492 *
6493 * This is also needed for 636 fw for IBSS-RSN to work more reliably.
6494 *
6495 * FIXME: It remains unknown if this is required for multi-vif STA
6496 * interfaces on 10.1.
6497 */
6498
6499 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
6500 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
6501 return;
6502
6503 if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
6504 return;
6505
6506 if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
6507 return;
6508
6509 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
6510 return;
6511
6512 if (cmd != SET_KEY)
6513 return;
6514
6515 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
6516 key->keyidx);
6517 if (ret)
6518 ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
6519 arvif->vdev_id, ret);
6520 }
6521
ath10k_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)6522 static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
6523 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
6524 struct ieee80211_key_conf *key)
6525 {
6526 struct ath10k *ar = hw->priv;
6527 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6528 struct ath10k_sta *arsta;
6529 struct ath10k_peer *peer;
6530 const u8 *peer_addr;
6531 bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
6532 key->cipher == WLAN_CIPHER_SUITE_WEP104;
6533 int ret = 0;
6534 int ret2;
6535 u32 flags = 0;
6536 u32 flags2;
6537
6538 /* this one needs to be done in software */
6539 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
6540 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
6541 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
6542 key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
6543 return 1;
6544
6545 if (arvif->nohwcrypt)
6546 return 1;
6547
6548 if (key->keyidx > WMI_MAX_KEY_INDEX)
6549 return -ENOSPC;
6550
6551 mutex_lock(&ar->conf_mutex);
6552
6553 if (sta) {
6554 arsta = (struct ath10k_sta *)sta->drv_priv;
6555 peer_addr = sta->addr;
6556 spin_lock_bh(&ar->data_lock);
6557 arsta->ucast_cipher = key->cipher;
6558 spin_unlock_bh(&ar->data_lock);
6559 } else if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
6560 peer_addr = vif->bss_conf.bssid;
6561 } else {
6562 peer_addr = vif->addr;
6563 }
6564
6565 key->hw_key_idx = key->keyidx;
6566
6567 if (is_wep) {
6568 if (cmd == SET_KEY)
6569 arvif->wep_keys[key->keyidx] = key;
6570 else
6571 arvif->wep_keys[key->keyidx] = NULL;
6572 }
6573
6574 /* the peer should not disappear in mid-way (unless FW goes awry) since
6575 * we already hold conf_mutex. we just make sure its there now.
6576 */
6577 spin_lock_bh(&ar->data_lock);
6578 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
6579 spin_unlock_bh(&ar->data_lock);
6580
6581 if (!peer) {
6582 if (cmd == SET_KEY) {
6583 ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
6584 peer_addr);
6585 ret = -EOPNOTSUPP;
6586 goto exit;
6587 } else {
6588 /* if the peer doesn't exist there is no key to disable anymore */
6589 goto exit;
6590 }
6591 }
6592
6593 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
6594 flags |= WMI_KEY_PAIRWISE;
6595 else
6596 flags |= WMI_KEY_GROUP;
6597
6598 if (is_wep) {
6599 if (cmd == DISABLE_KEY)
6600 ath10k_clear_vdev_key(arvif, key);
6601
6602 /* When WEP keys are uploaded it's possible that there are
6603 * stations associated already (e.g. when merging) without any
6604 * keys. Static WEP needs an explicit per-peer key upload.
6605 */
6606 if (vif->type == NL80211_IFTYPE_ADHOC &&
6607 cmd == SET_KEY)
6608 ath10k_mac_vif_update_wep_key(arvif, key);
6609
6610 /* 802.1x never sets the def_wep_key_idx so each set_key()
6611 * call changes default tx key.
6612 *
6613 * Static WEP sets def_wep_key_idx via .set_default_unicast_key
6614 * after first set_key().
6615 */
6616 if (cmd == SET_KEY && arvif->def_wep_key_idx == -1)
6617 flags |= WMI_KEY_TX_USAGE;
6618 }
6619
6620 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags);
6621 if (ret) {
6622 WARN_ON(ret > 0);
6623 ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
6624 arvif->vdev_id, peer_addr, ret);
6625 goto exit;
6626 }
6627
6628 /* mac80211 sets static WEP keys as groupwise while firmware requires
6629 * them to be installed twice as both pairwise and groupwise.
6630 */
6631 if (is_wep && !sta && vif->type == NL80211_IFTYPE_STATION) {
6632 flags2 = flags;
6633 flags2 &= ~WMI_KEY_GROUP;
6634 flags2 |= WMI_KEY_PAIRWISE;
6635
6636 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags2);
6637 if (ret) {
6638 WARN_ON(ret > 0);
6639 ath10k_warn(ar, "failed to install (ucast) key for vdev %i peer %pM: %d\n",
6640 arvif->vdev_id, peer_addr, ret);
6641 ret2 = ath10k_install_key(arvif, key, DISABLE_KEY,
6642 peer_addr, flags);
6643 if (ret2) {
6644 WARN_ON(ret2 > 0);
6645 ath10k_warn(ar, "failed to disable (mcast) key for vdev %i peer %pM: %d\n",
6646 arvif->vdev_id, peer_addr, ret2);
6647 }
6648 goto exit;
6649 }
6650 }
6651
6652 ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);
6653
6654 spin_lock_bh(&ar->data_lock);
6655 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
6656 if (peer && cmd == SET_KEY)
6657 peer->keys[key->keyidx] = key;
6658 else if (peer && cmd == DISABLE_KEY)
6659 peer->keys[key->keyidx] = NULL;
6660 else if (peer == NULL)
6661 /* impossible unless FW goes crazy */
6662 ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
6663 spin_unlock_bh(&ar->data_lock);
6664
6665 if (sta && sta->tdls)
6666 ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6667 ar->wmi.peer_param->authorize, 1);
6668 else if (sta && cmd == SET_KEY && (key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
6669 ath10k_wmi_peer_set_param(ar, arvif->vdev_id, peer_addr,
6670 ar->wmi.peer_param->authorize, 1);
6671
6672 exit:
6673 mutex_unlock(&ar->conf_mutex);
6674 return ret;
6675 }
6676
ath10k_set_default_unicast_key(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int keyidx)6677 static void ath10k_set_default_unicast_key(struct ieee80211_hw *hw,
6678 struct ieee80211_vif *vif,
6679 int keyidx)
6680 {
6681 struct ath10k *ar = hw->priv;
6682 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6683 int ret;
6684
6685 mutex_lock(&arvif->ar->conf_mutex);
6686
6687 if (arvif->ar->state != ATH10K_STATE_ON)
6688 goto unlock;
6689
6690 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
6691 arvif->vdev_id, keyidx);
6692
6693 ret = ath10k_wmi_vdev_set_param(arvif->ar,
6694 arvif->vdev_id,
6695 arvif->ar->wmi.vdev_param->def_keyid,
6696 keyidx);
6697
6698 if (ret) {
6699 ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
6700 arvif->vdev_id,
6701 ret);
6702 goto unlock;
6703 }
6704
6705 arvif->def_wep_key_idx = keyidx;
6706
6707 unlock:
6708 mutex_unlock(&arvif->ar->conf_mutex);
6709 }
6710
ath10k_sta_rc_update_wk(struct work_struct * wk)6711 static void ath10k_sta_rc_update_wk(struct work_struct *wk)
6712 {
6713 struct ath10k *ar;
6714 struct ath10k_vif *arvif;
6715 struct ath10k_sta *arsta;
6716 struct ieee80211_sta *sta;
6717 struct cfg80211_chan_def def;
6718 enum nl80211_band band;
6719 const u8 *ht_mcs_mask;
6720 const u16 *vht_mcs_mask;
6721 u32 changed, bw, nss, smps;
6722 int err;
6723
6724 arsta = container_of(wk, struct ath10k_sta, update_wk);
6725 sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
6726 arvif = arsta->arvif;
6727 ar = arvif->ar;
6728
6729 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
6730 return;
6731
6732 band = def.chan->band;
6733 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
6734 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
6735
6736 spin_lock_bh(&ar->data_lock);
6737
6738 changed = arsta->changed;
6739 arsta->changed = 0;
6740
6741 bw = arsta->bw;
6742 nss = arsta->nss;
6743 smps = arsta->smps;
6744
6745 spin_unlock_bh(&ar->data_lock);
6746
6747 mutex_lock(&ar->conf_mutex);
6748
6749 nss = max_t(u32, 1, nss);
6750 nss = min(nss, max(ath10k_mac_max_ht_nss(ht_mcs_mask),
6751 ath10k_mac_max_vht_nss(vht_mcs_mask)));
6752
6753 if (changed & IEEE80211_RC_BW_CHANGED) {
6754 enum wmi_phy_mode mode;
6755
6756 mode = chan_to_phymode(&def);
6757 ath10k_dbg(ar, ATH10K_DBG_STA, "mac update sta %pM peer bw %d phymode %d\n",
6758 sta->addr, bw, mode);
6759
6760 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6761 ar->wmi.peer_param->phymode, mode);
6762 if (err) {
6763 ath10k_warn(ar, "failed to update STA %pM peer phymode %d: %d\n",
6764 sta->addr, mode, err);
6765 goto exit;
6766 }
6767
6768 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6769 ar->wmi.peer_param->chan_width, bw);
6770 if (err)
6771 ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
6772 sta->addr, bw, err);
6773 }
6774
6775 if (changed & IEEE80211_RC_NSS_CHANGED) {
6776 ath10k_dbg(ar, ATH10K_DBG_STA, "mac update sta %pM nss %d\n",
6777 sta->addr, nss);
6778
6779 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6780 ar->wmi.peer_param->nss, nss);
6781 if (err)
6782 ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
6783 sta->addr, nss, err);
6784 }
6785
6786 if (changed & IEEE80211_RC_SMPS_CHANGED) {
6787 ath10k_dbg(ar, ATH10K_DBG_STA, "mac update sta %pM smps %d\n",
6788 sta->addr, smps);
6789
6790 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6791 ar->wmi.peer_param->smps_state, smps);
6792 if (err)
6793 ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
6794 sta->addr, smps, err);
6795 }
6796
6797 if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
6798 ath10k_dbg(ar, ATH10K_DBG_STA, "mac update sta %pM supp rates\n",
6799 sta->addr);
6800
6801 err = ath10k_station_assoc(ar, arvif->vif, sta, true);
6802 if (err)
6803 ath10k_warn(ar, "failed to reassociate station: %pM\n",
6804 sta->addr);
6805 }
6806
6807 exit:
6808 mutex_unlock(&ar->conf_mutex);
6809 }
6810
ath10k_mac_inc_num_stations(struct ath10k_vif * arvif,struct ieee80211_sta * sta)6811 static int ath10k_mac_inc_num_stations(struct ath10k_vif *arvif,
6812 struct ieee80211_sta *sta)
6813 {
6814 struct ath10k *ar = arvif->ar;
6815
6816 lockdep_assert_held(&ar->conf_mutex);
6817
6818 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
6819 return 0;
6820
6821 if (ar->num_stations >= ar->max_num_stations)
6822 return -ENOBUFS;
6823
6824 ar->num_stations++;
6825
6826 return 0;
6827 }
6828
ath10k_mac_dec_num_stations(struct ath10k_vif * arvif,struct ieee80211_sta * sta)6829 static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
6830 struct ieee80211_sta *sta)
6831 {
6832 struct ath10k *ar = arvif->ar;
6833
6834 lockdep_assert_held(&ar->conf_mutex);
6835
6836 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
6837 return;
6838
6839 ar->num_stations--;
6840 }
6841
ath10k_sta_set_txpwr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)6842 static int ath10k_sta_set_txpwr(struct ieee80211_hw *hw,
6843 struct ieee80211_vif *vif,
6844 struct ieee80211_sta *sta)
6845 {
6846 struct ath10k *ar = hw->priv;
6847 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6848 int ret = 0;
6849 s16 txpwr;
6850
6851 if (sta->deflink.txpwr.type == NL80211_TX_POWER_AUTOMATIC) {
6852 txpwr = 0;
6853 } else {
6854 txpwr = sta->deflink.txpwr.power;
6855 if (!txpwr)
6856 return -EINVAL;
6857 }
6858
6859 if (txpwr > ATH10K_TX_POWER_MAX_VAL || txpwr < ATH10K_TX_POWER_MIN_VAL)
6860 return -EINVAL;
6861
6862 mutex_lock(&ar->conf_mutex);
6863
6864 ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
6865 ar->wmi.peer_param->use_fixed_power, txpwr);
6866 if (ret) {
6867 ath10k_warn(ar, "failed to set tx power for station ret: %d\n",
6868 ret);
6869 goto out;
6870 }
6871
6872 out:
6873 mutex_unlock(&ar->conf_mutex);
6874 return ret;
6875 }
6876
6877 struct ath10k_mac_iter_tid_conf_data {
6878 struct ieee80211_vif *curr_vif;
6879 struct ath10k *ar;
6880 bool reset_config;
6881 };
6882
6883 static bool
ath10k_mac_bitrate_mask_has_single_rate(struct ath10k * ar,enum nl80211_band band,const struct cfg80211_bitrate_mask * mask,int * vht_num_rates)6884 ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
6885 enum nl80211_band band,
6886 const struct cfg80211_bitrate_mask *mask,
6887 int *vht_num_rates)
6888 {
6889 int num_rates = 0;
6890 int i, tmp;
6891
6892 num_rates += hweight32(mask->control[band].legacy);
6893
6894 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
6895 num_rates += hweight8(mask->control[band].ht_mcs[i]);
6896
6897 *vht_num_rates = 0;
6898 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
6899 tmp = hweight16(mask->control[band].vht_mcs[i]);
6900 num_rates += tmp;
6901 *vht_num_rates += tmp;
6902 }
6903
6904 return num_rates == 1;
6905 }
6906
6907 static int
ath10k_mac_bitrate_mask_get_single_rate(struct ath10k * ar,enum nl80211_band band,const struct cfg80211_bitrate_mask * mask,u8 * rate,u8 * nss,bool vht_only)6908 ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
6909 enum nl80211_band band,
6910 const struct cfg80211_bitrate_mask *mask,
6911 u8 *rate, u8 *nss, bool vht_only)
6912 {
6913 int rate_idx;
6914 int i;
6915 u16 bitrate;
6916 u8 preamble;
6917 u8 hw_rate;
6918
6919 if (vht_only)
6920 goto next;
6921
6922 if (hweight32(mask->control[band].legacy) == 1) {
6923 rate_idx = ffs(mask->control[band].legacy) - 1;
6924
6925 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
6926 rate_idx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
6927
6928 hw_rate = ath10k_wmi_legacy_rates[rate_idx].hw_value;
6929 bitrate = ath10k_wmi_legacy_rates[rate_idx].bitrate;
6930
6931 if (ath10k_mac_bitrate_is_cck(bitrate))
6932 preamble = WMI_RATE_PREAMBLE_CCK;
6933 else
6934 preamble = WMI_RATE_PREAMBLE_OFDM;
6935
6936 *nss = 1;
6937 *rate = preamble << 6 |
6938 (*nss - 1) << 4 |
6939 hw_rate << 0;
6940
6941 return 0;
6942 }
6943
6944 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
6945 if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
6946 *nss = i + 1;
6947 *rate = WMI_RATE_PREAMBLE_HT << 6 |
6948 (*nss - 1) << 4 |
6949 (ffs(mask->control[band].ht_mcs[i]) - 1);
6950
6951 return 0;
6952 }
6953 }
6954
6955 next:
6956 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
6957 if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
6958 *nss = i + 1;
6959 *rate = WMI_RATE_PREAMBLE_VHT << 6 |
6960 (*nss - 1) << 4 |
6961 (ffs(mask->control[band].vht_mcs[i]) - 1);
6962
6963 return 0;
6964 }
6965 }
6966
6967 return -EINVAL;
6968 }
6969
ath10k_mac_validate_rate_mask(struct ath10k * ar,struct ieee80211_sta * sta,u32 rate_ctrl_flag,u8 nss)6970 static int ath10k_mac_validate_rate_mask(struct ath10k *ar,
6971 struct ieee80211_sta *sta,
6972 u32 rate_ctrl_flag, u8 nss)
6973 {
6974 struct ieee80211_sta_ht_cap *ht_cap = &sta->deflink.ht_cap;
6975 struct ieee80211_sta_vht_cap *vht_cap = &sta->deflink.vht_cap;
6976
6977 if (nss > sta->deflink.rx_nss) {
6978 ath10k_warn(ar, "Invalid nss field, configured %u limit %u\n",
6979 nss, sta->deflink.rx_nss);
6980 return -EINVAL;
6981 }
6982
6983 if (ATH10K_HW_PREAMBLE(rate_ctrl_flag) == WMI_RATE_PREAMBLE_VHT) {
6984 if (!vht_cap->vht_supported) {
6985 ath10k_warn(ar, "Invalid VHT rate for sta %pM\n",
6986 sta->addr);
6987 return -EINVAL;
6988 }
6989 } else if (ATH10K_HW_PREAMBLE(rate_ctrl_flag) == WMI_RATE_PREAMBLE_HT) {
6990 if (!ht_cap->ht_supported || vht_cap->vht_supported) {
6991 ath10k_warn(ar, "Invalid HT rate for sta %pM\n",
6992 sta->addr);
6993 return -EINVAL;
6994 }
6995 } else {
6996 if (ht_cap->ht_supported || vht_cap->vht_supported)
6997 return -EINVAL;
6998 }
6999
7000 return 0;
7001 }
7002
7003 static int
ath10k_mac_tid_bitrate_config(struct ath10k * ar,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 * rate_ctrl_flag,u8 * rate_ctrl,enum nl80211_tx_rate_setting txrate_type,const struct cfg80211_bitrate_mask * mask)7004 ath10k_mac_tid_bitrate_config(struct ath10k *ar,
7005 struct ieee80211_vif *vif,
7006 struct ieee80211_sta *sta,
7007 u32 *rate_ctrl_flag, u8 *rate_ctrl,
7008 enum nl80211_tx_rate_setting txrate_type,
7009 const struct cfg80211_bitrate_mask *mask)
7010 {
7011 struct cfg80211_chan_def def;
7012 enum nl80211_band band;
7013 u8 nss, rate;
7014 int vht_num_rates, ret;
7015
7016 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
7017 return -EINVAL;
7018
7019 if (txrate_type == NL80211_TX_RATE_AUTOMATIC) {
7020 *rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_AUTO;
7021 *rate_ctrl_flag = 0;
7022 return 0;
7023 }
7024
7025 band = def.chan->band;
7026
7027 if (!ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask,
7028 &vht_num_rates)) {
7029 return -EINVAL;
7030 }
7031
7032 ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
7033 &rate, &nss, false);
7034 if (ret) {
7035 ath10k_warn(ar, "failed to get single rate: %d\n",
7036 ret);
7037 return ret;
7038 }
7039
7040 *rate_ctrl_flag = rate;
7041
7042 if (sta && ath10k_mac_validate_rate_mask(ar, sta, *rate_ctrl_flag, nss))
7043 return -EINVAL;
7044
7045 if (txrate_type == NL80211_TX_RATE_FIXED)
7046 *rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_FIXED_RATE;
7047 else if (txrate_type == NL80211_TX_RATE_LIMITED &&
7048 (test_bit(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,
7049 ar->wmi.svc_map)))
7050 *rate_ctrl = WMI_PEER_TID_CONFIG_RATE_UPPER_CAP;
7051 else
7052 return -EOPNOTSUPP;
7053
7054 return 0;
7055 }
7056
ath10k_mac_set_tid_config(struct ath10k * ar,struct ieee80211_sta * sta,struct ieee80211_vif * vif,u32 changed,struct wmi_per_peer_per_tid_cfg_arg * arg)7057 static int ath10k_mac_set_tid_config(struct ath10k *ar, struct ieee80211_sta *sta,
7058 struct ieee80211_vif *vif, u32 changed,
7059 struct wmi_per_peer_per_tid_cfg_arg *arg)
7060 {
7061 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7062 struct ath10k_sta *arsta;
7063 int ret;
7064
7065 if (sta) {
7066 if (!sta->wme)
7067 return -ENOTSUPP;
7068
7069 arsta = (struct ath10k_sta *)sta->drv_priv;
7070
7071 if (changed & BIT(NL80211_TID_CONFIG_ATTR_NOACK)) {
7072 if ((arsta->retry_long[arg->tid] > 0 ||
7073 arsta->rate_code[arg->tid] > 0 ||
7074 arsta->ampdu[arg->tid] ==
7075 WMI_TID_CONFIG_AGGR_CONTROL_ENABLE) &&
7076 arg->ack_policy == WMI_PEER_TID_CONFIG_NOACK) {
7077 changed &= ~BIT(NL80211_TID_CONFIG_ATTR_NOACK);
7078 arg->ack_policy = 0;
7079 arg->aggr_control = 0;
7080 arg->rate_ctrl = 0;
7081 arg->rcode_flags = 0;
7082 }
7083 }
7084
7085 if (changed & BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL)) {
7086 if (arsta->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK ||
7087 arvif->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK) {
7088 arg->aggr_control = 0;
7089 changed &= ~BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG);
7090 }
7091 }
7092
7093 if (changed & (BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7094 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE))) {
7095 if (arsta->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK ||
7096 arvif->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK) {
7097 arg->rate_ctrl = 0;
7098 arg->rcode_flags = 0;
7099 }
7100 }
7101
7102 ether_addr_copy(arg->peer_macaddr.addr, sta->addr);
7103
7104 ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, arg);
7105 if (ret)
7106 return ret;
7107
7108 /* Store the configured parameters in success case */
7109 if (changed & BIT(NL80211_TID_CONFIG_ATTR_NOACK)) {
7110 arsta->noack[arg->tid] = arg->ack_policy;
7111 arg->ack_policy = 0;
7112 arg->aggr_control = 0;
7113 arg->rate_ctrl = 0;
7114 arg->rcode_flags = 0;
7115 }
7116
7117 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG)) {
7118 arsta->retry_long[arg->tid] = arg->retry_count;
7119 arg->retry_count = 0;
7120 }
7121
7122 if (changed & BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL)) {
7123 arsta->ampdu[arg->tid] = arg->aggr_control;
7124 arg->aggr_control = 0;
7125 }
7126
7127 if (changed & (BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7128 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE))) {
7129 arsta->rate_ctrl[arg->tid] = arg->rate_ctrl;
7130 arg->rate_ctrl = 0;
7131 arg->rcode_flags = 0;
7132 }
7133
7134 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL)) {
7135 arsta->rtscts[arg->tid] = arg->rtscts_ctrl;
7136 arg->ext_tid_cfg_bitmap = 0;
7137 }
7138 } else {
7139 if (changed & BIT(NL80211_TID_CONFIG_ATTR_NOACK)) {
7140 if ((arvif->retry_long[arg->tid] ||
7141 arvif->rate_code[arg->tid] ||
7142 arvif->ampdu[arg->tid] ==
7143 WMI_TID_CONFIG_AGGR_CONTROL_ENABLE) &&
7144 arg->ack_policy == WMI_PEER_TID_CONFIG_NOACK) {
7145 changed &= ~BIT(NL80211_TID_CONFIG_ATTR_NOACK);
7146 } else {
7147 arvif->noack[arg->tid] = arg->ack_policy;
7148 arvif->ampdu[arg->tid] = arg->aggr_control;
7149 arvif->rate_ctrl[arg->tid] = arg->rate_ctrl;
7150 }
7151 }
7152
7153 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG)) {
7154 if (arvif->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK)
7155 changed &= ~BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG);
7156 else
7157 arvif->retry_long[arg->tid] = arg->retry_count;
7158 }
7159
7160 if (changed & BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL)) {
7161 if (arvif->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK)
7162 changed &= ~BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL);
7163 else
7164 arvif->ampdu[arg->tid] = arg->aggr_control;
7165 }
7166
7167 if (changed & (BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7168 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE))) {
7169 if (arvif->noack[arg->tid] == WMI_PEER_TID_CONFIG_NOACK) {
7170 changed &= ~(BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7171 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE));
7172 } else {
7173 arvif->rate_ctrl[arg->tid] = arg->rate_ctrl;
7174 arvif->rate_code[arg->tid] = arg->rcode_flags;
7175 }
7176 }
7177
7178 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL)) {
7179 arvif->rtscts[arg->tid] = arg->rtscts_ctrl;
7180 arg->ext_tid_cfg_bitmap = 0;
7181 }
7182
7183 if (changed)
7184 arvif->tid_conf_changed[arg->tid] |= changed;
7185 }
7186
7187 return 0;
7188 }
7189
7190 static int
ath10k_mac_parse_tid_config(struct ath10k * ar,struct ieee80211_sta * sta,struct ieee80211_vif * vif,struct cfg80211_tid_cfg * tid_conf,struct wmi_per_peer_per_tid_cfg_arg * arg)7191 ath10k_mac_parse_tid_config(struct ath10k *ar,
7192 struct ieee80211_sta *sta,
7193 struct ieee80211_vif *vif,
7194 struct cfg80211_tid_cfg *tid_conf,
7195 struct wmi_per_peer_per_tid_cfg_arg *arg)
7196 {
7197 u32 changed = tid_conf->mask;
7198 int ret = 0, i = 0;
7199
7200 if (!changed)
7201 return -EINVAL;
7202
7203 while (i < ATH10K_TID_MAX) {
7204 if (!(tid_conf->tids & BIT(i))) {
7205 i++;
7206 continue;
7207 }
7208
7209 arg->tid = i;
7210
7211 if (changed & BIT(NL80211_TID_CONFIG_ATTR_NOACK)) {
7212 if (tid_conf->noack == NL80211_TID_CONFIG_ENABLE) {
7213 arg->ack_policy = WMI_PEER_TID_CONFIG_NOACK;
7214 arg->rate_ctrl =
7215 WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE;
7216 arg->aggr_control =
7217 WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
7218 } else {
7219 arg->ack_policy =
7220 WMI_PEER_TID_CONFIG_ACK;
7221 arg->rate_ctrl =
7222 WMI_TID_CONFIG_RATE_CONTROL_AUTO;
7223 arg->aggr_control =
7224 WMI_TID_CONFIG_AGGR_CONTROL_ENABLE;
7225 }
7226 }
7227
7228 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG))
7229 arg->retry_count = tid_conf->retry_long;
7230
7231 if (changed & BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL)) {
7232 if (tid_conf->noack == NL80211_TID_CONFIG_ENABLE)
7233 arg->aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_ENABLE;
7234 else
7235 arg->aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
7236 }
7237
7238 if (changed & (BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7239 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE))) {
7240 ret = ath10k_mac_tid_bitrate_config(ar, vif, sta,
7241 &arg->rcode_flags,
7242 &arg->rate_ctrl,
7243 tid_conf->txrate_type,
7244 &tid_conf->txrate_mask);
7245 if (ret) {
7246 ath10k_warn(ar, "failed to configure bitrate mask %d\n",
7247 ret);
7248 arg->rcode_flags = 0;
7249 arg->rate_ctrl = 0;
7250 }
7251 }
7252
7253 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL)) {
7254 if (tid_conf->rtscts)
7255 arg->rtscts_ctrl = tid_conf->rtscts;
7256
7257 arg->ext_tid_cfg_bitmap = WMI_EXT_TID_RTS_CTS_CONFIG;
7258 }
7259
7260 ret = ath10k_mac_set_tid_config(ar, sta, vif, changed, arg);
7261 if (ret)
7262 return ret;
7263 i++;
7264 }
7265
7266 return ret;
7267 }
7268
ath10k_mac_reset_tid_config(struct ath10k * ar,struct ieee80211_sta * sta,struct ath10k_vif * arvif,u8 tids)7269 static int ath10k_mac_reset_tid_config(struct ath10k *ar,
7270 struct ieee80211_sta *sta,
7271 struct ath10k_vif *arvif,
7272 u8 tids)
7273 {
7274 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
7275 struct wmi_per_peer_per_tid_cfg_arg arg;
7276 int ret = 0, i = 0;
7277
7278 arg.vdev_id = arvif->vdev_id;
7279 while (i < ATH10K_TID_MAX) {
7280 if (!(tids & BIT(i))) {
7281 i++;
7282 continue;
7283 }
7284
7285 arg.tid = i;
7286 arg.ack_policy = WMI_PEER_TID_CONFIG_ACK;
7287 arg.retry_count = ATH10K_MAX_RETRY_COUNT;
7288 arg.rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_AUTO;
7289 arg.aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_ENABLE;
7290 arg.rtscts_ctrl = WMI_TID_CONFIG_RTSCTS_CONTROL_ENABLE;
7291 arg.ext_tid_cfg_bitmap = WMI_EXT_TID_RTS_CTS_CONFIG;
7292
7293 ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
7294
7295 ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
7296 if (ret)
7297 return ret;
7298
7299 if (!arvif->tids_rst) {
7300 arsta->retry_long[i] = -1;
7301 arsta->noack[i] = -1;
7302 arsta->ampdu[i] = -1;
7303 arsta->rate_code[i] = -1;
7304 arsta->rate_ctrl[i] = 0;
7305 arsta->rtscts[i] = -1;
7306 } else {
7307 arvif->retry_long[i] = 0;
7308 arvif->noack[i] = 0;
7309 arvif->ampdu[i] = 0;
7310 arvif->rate_code[i] = 0;
7311 arvif->rate_ctrl[i] = 0;
7312 arvif->rtscts[i] = 0;
7313 }
7314
7315 i++;
7316 }
7317
7318 return ret;
7319 }
7320
ath10k_sta_tid_cfg_wk(struct work_struct * wk)7321 static void ath10k_sta_tid_cfg_wk(struct work_struct *wk)
7322 {
7323 struct wmi_per_peer_per_tid_cfg_arg arg = {};
7324 struct ieee80211_sta *sta;
7325 struct ath10k_sta *arsta;
7326 struct ath10k_vif *arvif;
7327 struct ath10k *ar;
7328 bool config_apply;
7329 int ret, i;
7330 u32 changed;
7331 u8 nss;
7332
7333 arsta = container_of(wk, struct ath10k_sta, tid_config_wk);
7334 sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
7335 arvif = arsta->arvif;
7336 ar = arvif->ar;
7337
7338 mutex_lock(&ar->conf_mutex);
7339
7340 if (arvif->tids_rst) {
7341 ret = ath10k_mac_reset_tid_config(ar, sta, arvif,
7342 arvif->tids_rst);
7343 goto exit;
7344 }
7345
7346 ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
7347
7348 for (i = 0; i < ATH10K_TID_MAX; i++) {
7349 config_apply = false;
7350 changed = arvif->tid_conf_changed[i];
7351
7352 if (changed & BIT(NL80211_TID_CONFIG_ATTR_NOACK)) {
7353 if (arsta->noack[i] != -1) {
7354 arg.ack_policy = 0;
7355 } else {
7356 config_apply = true;
7357 arg.ack_policy = arvif->noack[i];
7358 arg.aggr_control = arvif->ampdu[i];
7359 arg.rate_ctrl = arvif->rate_ctrl[i];
7360 }
7361 }
7362
7363 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG)) {
7364 if (arsta->retry_long[i] != -1 ||
7365 arsta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
7366 arvif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
7367 arg.retry_count = 0;
7368 } else {
7369 arg.retry_count = arvif->retry_long[i];
7370 config_apply = true;
7371 }
7372 }
7373
7374 if (changed & BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL)) {
7375 if (arsta->ampdu[i] != -1 ||
7376 arsta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
7377 arvif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
7378 arg.aggr_control = 0;
7379 } else {
7380 arg.aggr_control = arvif->ampdu[i];
7381 config_apply = true;
7382 }
7383 }
7384
7385 if (changed & (BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
7386 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE))) {
7387 nss = ATH10K_HW_NSS(arvif->rate_code[i]);
7388 ret = ath10k_mac_validate_rate_mask(ar, sta,
7389 arvif->rate_code[i],
7390 nss);
7391 if (ret &&
7392 arvif->rate_ctrl[i] > WMI_TID_CONFIG_RATE_CONTROL_AUTO) {
7393 arg.rate_ctrl = 0;
7394 arg.rcode_flags = 0;
7395 }
7396
7397 if (arsta->rate_ctrl[i] >
7398 WMI_TID_CONFIG_RATE_CONTROL_AUTO ||
7399 arsta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
7400 arvif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
7401 arg.rate_ctrl = 0;
7402 arg.rcode_flags = 0;
7403 } else {
7404 arg.rate_ctrl = arvif->rate_ctrl[i];
7405 arg.rcode_flags = arvif->rate_code[i];
7406 config_apply = true;
7407 }
7408 }
7409
7410 if (changed & BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL)) {
7411 if (arsta->rtscts[i]) {
7412 arg.rtscts_ctrl = 0;
7413 arg.ext_tid_cfg_bitmap = 0;
7414 } else {
7415 arg.rtscts_ctrl = arvif->rtscts[i] - 1;
7416 arg.ext_tid_cfg_bitmap =
7417 WMI_EXT_TID_RTS_CTS_CONFIG;
7418 config_apply = true;
7419 }
7420 }
7421
7422 arg.tid = i;
7423
7424 if (config_apply) {
7425 ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
7426 if (ret)
7427 ath10k_warn(ar, "failed to set per tid config for sta %pM: %d\n",
7428 sta->addr, ret);
7429 }
7430
7431 arg.ack_policy = 0;
7432 arg.retry_count = 0;
7433 arg.aggr_control = 0;
7434 arg.rate_ctrl = 0;
7435 arg.rcode_flags = 0;
7436 }
7437
7438 exit:
7439 mutex_unlock(&ar->conf_mutex);
7440 }
7441
ath10k_mac_vif_stations_tid_conf(void * data,struct ieee80211_sta * sta)7442 static void ath10k_mac_vif_stations_tid_conf(void *data,
7443 struct ieee80211_sta *sta)
7444 {
7445 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
7446 struct ath10k_mac_iter_tid_conf_data *iter_data = data;
7447 struct ieee80211_vif *sta_vif = arsta->arvif->vif;
7448
7449 if (sta_vif != iter_data->curr_vif || !sta->wme)
7450 return;
7451
7452 ieee80211_queue_work(iter_data->ar->hw, &arsta->tid_config_wk);
7453 }
7454
ath10k_sta_state(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state)7455 static int ath10k_sta_state(struct ieee80211_hw *hw,
7456 struct ieee80211_vif *vif,
7457 struct ieee80211_sta *sta,
7458 enum ieee80211_sta_state old_state,
7459 enum ieee80211_sta_state new_state)
7460 {
7461 struct ath10k *ar = hw->priv;
7462 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7463 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
7464 struct ath10k_peer *peer;
7465 int ret = 0;
7466 int i;
7467
7468 if (old_state == IEEE80211_STA_NOTEXIST &&
7469 new_state == IEEE80211_STA_NONE) {
7470 memset(arsta, 0, sizeof(*arsta));
7471 arsta->arvif = arvif;
7472 arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
7473 INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
7474 INIT_WORK(&arsta->tid_config_wk, ath10k_sta_tid_cfg_wk);
7475
7476 for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
7477 ath10k_mac_txq_init(sta->txq[i]);
7478 }
7479
7480 /* cancel must be done outside the mutex to avoid deadlock */
7481 if ((old_state == IEEE80211_STA_NONE &&
7482 new_state == IEEE80211_STA_NOTEXIST)) {
7483 cancel_work_sync(&arsta->update_wk);
7484 cancel_work_sync(&arsta->tid_config_wk);
7485 }
7486
7487 mutex_lock(&ar->conf_mutex);
7488
7489 if (old_state == IEEE80211_STA_NOTEXIST &&
7490 new_state == IEEE80211_STA_NONE) {
7491 /*
7492 * New station addition.
7493 */
7494 enum wmi_peer_type peer_type = WMI_PEER_TYPE_DEFAULT;
7495 u32 num_tdls_stations;
7496
7497 ath10k_dbg(ar, ATH10K_DBG_STA,
7498 "mac vdev %d peer create %pM (new sta) sta %d / %d peer %d / %d\n",
7499 arvif->vdev_id, sta->addr,
7500 ar->num_stations + 1, ar->max_num_stations,
7501 ar->num_peers + 1, ar->max_num_peers);
7502
7503 num_tdls_stations = ath10k_mac_tdls_vif_stations_count(hw, vif);
7504
7505 if (sta->tdls) {
7506 if (num_tdls_stations >= ar->max_num_tdls_vdevs) {
7507 ath10k_warn(ar, "vdev %i exceeded maximum number of tdls vdevs %i\n",
7508 arvif->vdev_id,
7509 ar->max_num_tdls_vdevs);
7510 ret = -ELNRNG;
7511 goto exit;
7512 }
7513 peer_type = WMI_PEER_TYPE_TDLS;
7514 }
7515
7516 ret = ath10k_mac_inc_num_stations(arvif, sta);
7517 if (ret) {
7518 ath10k_warn(ar, "refusing to associate station: too many connected already (%d)\n",
7519 ar->max_num_stations);
7520 goto exit;
7521 }
7522
7523 if (ath10k_debug_is_extd_tx_stats_enabled(ar)) {
7524 arsta->tx_stats = kzalloc(sizeof(*arsta->tx_stats),
7525 GFP_KERNEL);
7526 if (!arsta->tx_stats) {
7527 ath10k_mac_dec_num_stations(arvif, sta);
7528 ret = -ENOMEM;
7529 goto exit;
7530 }
7531 }
7532
7533 ret = ath10k_peer_create(ar, vif, sta, arvif->vdev_id,
7534 sta->addr, peer_type);
7535 if (ret) {
7536 ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
7537 sta->addr, arvif->vdev_id, ret);
7538 ath10k_mac_dec_num_stations(arvif, sta);
7539 kfree(arsta->tx_stats);
7540 goto exit;
7541 }
7542
7543 spin_lock_bh(&ar->data_lock);
7544
7545 peer = ath10k_peer_find(ar, arvif->vdev_id, sta->addr);
7546 if (!peer) {
7547 ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
7548 vif->addr, arvif->vdev_id);
7549 spin_unlock_bh(&ar->data_lock);
7550 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
7551 ath10k_mac_dec_num_stations(arvif, sta);
7552 kfree(arsta->tx_stats);
7553 ret = -ENOENT;
7554 goto exit;
7555 }
7556
7557 arsta->peer_id = find_first_bit(peer->peer_ids,
7558 ATH10K_MAX_NUM_PEER_IDS);
7559
7560 spin_unlock_bh(&ar->data_lock);
7561
7562 if (!sta->tdls)
7563 goto exit;
7564
7565 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
7566 WMI_TDLS_ENABLE_ACTIVE);
7567 if (ret) {
7568 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
7569 arvif->vdev_id, ret);
7570 ath10k_peer_delete(ar, arvif->vdev_id,
7571 sta->addr);
7572 ath10k_mac_dec_num_stations(arvif, sta);
7573 kfree(arsta->tx_stats);
7574 goto exit;
7575 }
7576
7577 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
7578 WMI_TDLS_PEER_STATE_PEERING);
7579 if (ret) {
7580 ath10k_warn(ar,
7581 "failed to update tdls peer %pM for vdev %d when adding a new sta: %i\n",
7582 sta->addr, arvif->vdev_id, ret);
7583 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
7584 ath10k_mac_dec_num_stations(arvif, sta);
7585 kfree(arsta->tx_stats);
7586
7587 if (num_tdls_stations != 0)
7588 goto exit;
7589 ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
7590 WMI_TDLS_DISABLE);
7591 }
7592 } else if ((old_state == IEEE80211_STA_NONE &&
7593 new_state == IEEE80211_STA_NOTEXIST)) {
7594 /*
7595 * Existing station deletion.
7596 */
7597 ath10k_dbg(ar, ATH10K_DBG_STA,
7598 "mac vdev %d peer delete %pM sta %pK (sta gone)\n",
7599 arvif->vdev_id, sta->addr, sta);
7600
7601 if (sta->tdls) {
7602 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id,
7603 sta,
7604 WMI_TDLS_PEER_STATE_TEARDOWN);
7605 if (ret)
7606 ath10k_warn(ar, "failed to update tdls peer state for %pM state %d: %i\n",
7607 sta->addr,
7608 WMI_TDLS_PEER_STATE_TEARDOWN, ret);
7609 }
7610
7611 ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
7612 if (ret)
7613 ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
7614 sta->addr, arvif->vdev_id, ret);
7615
7616 ath10k_mac_dec_num_stations(arvif, sta);
7617
7618 spin_lock_bh(&ar->data_lock);
7619 for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
7620 peer = ar->peer_map[i];
7621 if (!peer)
7622 continue;
7623
7624 if (peer->sta == sta) {
7625 ath10k_warn(ar, "found sta peer %pM (ptr %pK id %d) entry on vdev %i after it was supposedly removed\n",
7626 sta->addr, peer, i, arvif->vdev_id);
7627 peer->sta = NULL;
7628
7629 /* Clean up the peer object as well since we
7630 * must have failed to do this above.
7631 */
7632 ath10k_peer_map_cleanup(ar, peer);
7633 }
7634 }
7635 spin_unlock_bh(&ar->data_lock);
7636
7637 if (ath10k_debug_is_extd_tx_stats_enabled(ar)) {
7638 kfree(arsta->tx_stats);
7639 arsta->tx_stats = NULL;
7640 }
7641
7642 for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
7643 ath10k_mac_txq_unref(ar, sta->txq[i]);
7644
7645 if (!sta->tdls)
7646 goto exit;
7647
7648 if (ath10k_mac_tdls_vif_stations_count(hw, vif))
7649 goto exit;
7650
7651 /* This was the last tdls peer in current vif */
7652 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
7653 WMI_TDLS_DISABLE);
7654 if (ret) {
7655 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
7656 arvif->vdev_id, ret);
7657 }
7658 } else if (old_state == IEEE80211_STA_AUTH &&
7659 new_state == IEEE80211_STA_ASSOC &&
7660 (vif->type == NL80211_IFTYPE_AP ||
7661 vif->type == NL80211_IFTYPE_MESH_POINT ||
7662 vif->type == NL80211_IFTYPE_ADHOC)) {
7663 /*
7664 * New association.
7665 */
7666 ath10k_dbg(ar, ATH10K_DBG_STA, "mac sta %pM associated\n",
7667 sta->addr);
7668
7669 ret = ath10k_station_assoc(ar, vif, sta, false);
7670 if (ret)
7671 ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
7672 sta->addr, arvif->vdev_id, ret);
7673 } else if (old_state == IEEE80211_STA_ASSOC &&
7674 new_state == IEEE80211_STA_AUTHORIZED &&
7675 sta->tdls) {
7676 /*
7677 * Tdls station authorized.
7678 */
7679 ath10k_dbg(ar, ATH10K_DBG_STA, "mac tdls sta %pM authorized\n",
7680 sta->addr);
7681
7682 ret = ath10k_station_assoc(ar, vif, sta, false);
7683 if (ret) {
7684 ath10k_warn(ar, "failed to associate tdls station %pM for vdev %i: %i\n",
7685 sta->addr, arvif->vdev_id, ret);
7686 goto exit;
7687 }
7688
7689 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
7690 WMI_TDLS_PEER_STATE_CONNECTED);
7691 if (ret)
7692 ath10k_warn(ar, "failed to update tdls peer %pM for vdev %i: %i\n",
7693 sta->addr, arvif->vdev_id, ret);
7694 } else if (old_state == IEEE80211_STA_ASSOC &&
7695 new_state == IEEE80211_STA_AUTH &&
7696 (vif->type == NL80211_IFTYPE_AP ||
7697 vif->type == NL80211_IFTYPE_MESH_POINT ||
7698 vif->type == NL80211_IFTYPE_ADHOC)) {
7699 /*
7700 * Disassociation.
7701 */
7702 ath10k_dbg(ar, ATH10K_DBG_STA, "mac sta %pM disassociated\n",
7703 sta->addr);
7704
7705 ret = ath10k_station_disassoc(ar, vif, sta);
7706 if (ret)
7707 ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
7708 sta->addr, arvif->vdev_id, ret);
7709 }
7710 exit:
7711 mutex_unlock(&ar->conf_mutex);
7712 return ret;
7713 }
7714
ath10k_conf_tx_uapsd(struct ath10k * ar,struct ieee80211_vif * vif,u16 ac,bool enable)7715 static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
7716 u16 ac, bool enable)
7717 {
7718 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7719 struct wmi_sta_uapsd_auto_trig_arg arg = {};
7720 u32 prio = 0, acc = 0;
7721 u32 value = 0;
7722 int ret = 0;
7723
7724 lockdep_assert_held(&ar->conf_mutex);
7725
7726 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
7727 return 0;
7728
7729 switch (ac) {
7730 case IEEE80211_AC_VO:
7731 value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
7732 WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
7733 prio = 7;
7734 acc = 3;
7735 break;
7736 case IEEE80211_AC_VI:
7737 value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
7738 WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
7739 prio = 5;
7740 acc = 2;
7741 break;
7742 case IEEE80211_AC_BE:
7743 value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
7744 WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
7745 prio = 2;
7746 acc = 1;
7747 break;
7748 case IEEE80211_AC_BK:
7749 value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
7750 WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
7751 prio = 0;
7752 acc = 0;
7753 break;
7754 }
7755
7756 if (enable)
7757 arvif->u.sta.uapsd |= value;
7758 else
7759 arvif->u.sta.uapsd &= ~value;
7760
7761 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
7762 WMI_STA_PS_PARAM_UAPSD,
7763 arvif->u.sta.uapsd);
7764 if (ret) {
7765 ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
7766 goto exit;
7767 }
7768
7769 if (arvif->u.sta.uapsd)
7770 value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
7771 else
7772 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
7773
7774 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
7775 WMI_STA_PS_PARAM_RX_WAKE_POLICY,
7776 value);
7777 if (ret)
7778 ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
7779
7780 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
7781 if (ret) {
7782 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
7783 arvif->vdev_id, ret);
7784 return ret;
7785 }
7786
7787 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
7788 if (ret) {
7789 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
7790 arvif->vdev_id, ret);
7791 return ret;
7792 }
7793
7794 if (test_bit(WMI_SERVICE_STA_UAPSD_BASIC_AUTO_TRIG, ar->wmi.svc_map) ||
7795 test_bit(WMI_SERVICE_STA_UAPSD_VAR_AUTO_TRIG, ar->wmi.svc_map)) {
7796 /* Only userspace can make an educated decision when to send
7797 * trigger frame. The following effectively disables u-UAPSD
7798 * autotrigger in firmware (which is enabled by default
7799 * provided the autotrigger service is available).
7800 */
7801
7802 arg.wmm_ac = acc;
7803 arg.user_priority = prio;
7804 arg.service_interval = 0;
7805 arg.suspend_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
7806 arg.delay_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
7807
7808 ret = ath10k_wmi_vdev_sta_uapsd(ar, arvif->vdev_id,
7809 arvif->bssid, &arg, 1);
7810 if (ret) {
7811 ath10k_warn(ar, "failed to set uapsd auto trigger %d\n",
7812 ret);
7813 return ret;
7814 }
7815 }
7816
7817 exit:
7818 return ret;
7819 }
7820
ath10k_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 ac,const struct ieee80211_tx_queue_params * params)7821 static int ath10k_conf_tx(struct ieee80211_hw *hw,
7822 struct ieee80211_vif *vif,
7823 unsigned int link_id, u16 ac,
7824 const struct ieee80211_tx_queue_params *params)
7825 {
7826 struct ath10k *ar = hw->priv;
7827 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7828 struct wmi_wmm_params_arg *p = NULL;
7829 int ret;
7830
7831 mutex_lock(&ar->conf_mutex);
7832
7833 switch (ac) {
7834 case IEEE80211_AC_VO:
7835 p = &arvif->wmm_params.ac_vo;
7836 break;
7837 case IEEE80211_AC_VI:
7838 p = &arvif->wmm_params.ac_vi;
7839 break;
7840 case IEEE80211_AC_BE:
7841 p = &arvif->wmm_params.ac_be;
7842 break;
7843 case IEEE80211_AC_BK:
7844 p = &arvif->wmm_params.ac_bk;
7845 break;
7846 }
7847
7848 if (WARN_ON(!p)) {
7849 ret = -EINVAL;
7850 goto exit;
7851 }
7852
7853 p->cwmin = params->cw_min;
7854 p->cwmax = params->cw_max;
7855 p->aifs = params->aifs;
7856
7857 /*
7858 * The channel time duration programmed in the HW is in absolute
7859 * microseconds, while mac80211 gives the txop in units of
7860 * 32 microseconds.
7861 */
7862 p->txop = params->txop * 32;
7863
7864 if (ar->wmi.ops->gen_vdev_wmm_conf) {
7865 ret = ath10k_wmi_vdev_wmm_conf(ar, arvif->vdev_id,
7866 &arvif->wmm_params);
7867 if (ret) {
7868 ath10k_warn(ar, "failed to set vdev wmm params on vdev %i: %d\n",
7869 arvif->vdev_id, ret);
7870 goto exit;
7871 }
7872 } else {
7873 /* This won't work well with multi-interface cases but it's
7874 * better than nothing.
7875 */
7876 ret = ath10k_wmi_pdev_set_wmm_params(ar, &arvif->wmm_params);
7877 if (ret) {
7878 ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
7879 goto exit;
7880 }
7881 }
7882
7883 ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
7884 if (ret)
7885 ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
7886
7887 exit:
7888 mutex_unlock(&ar->conf_mutex);
7889 return ret;
7890 }
7891
ath10k_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)7892 static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
7893 struct ieee80211_vif *vif,
7894 struct ieee80211_channel *chan,
7895 int duration,
7896 enum ieee80211_roc_type type)
7897 {
7898 struct ath10k *ar = hw->priv;
7899 struct ath10k_vif *arvif = (void *)vif->drv_priv;
7900 struct wmi_start_scan_arg arg;
7901 int ret = 0;
7902 u32 scan_time_msec;
7903
7904 mutex_lock(&ar->conf_mutex);
7905
7906 if (ath10k_mac_tdls_vif_stations_count(hw, vif) > 0) {
7907 ret = -EBUSY;
7908 goto exit;
7909 }
7910
7911 spin_lock_bh(&ar->data_lock);
7912 switch (ar->scan.state) {
7913 case ATH10K_SCAN_IDLE:
7914 reinit_completion(&ar->scan.started);
7915 reinit_completion(&ar->scan.completed);
7916 reinit_completion(&ar->scan.on_channel);
7917 ar->scan.state = ATH10K_SCAN_STARTING;
7918 ar->scan.is_roc = true;
7919 ar->scan.vdev_id = arvif->vdev_id;
7920 ar->scan.roc_freq = chan->center_freq;
7921 ar->scan.roc_notify = true;
7922 ret = 0;
7923 break;
7924 case ATH10K_SCAN_STARTING:
7925 case ATH10K_SCAN_RUNNING:
7926 case ATH10K_SCAN_ABORTING:
7927 ret = -EBUSY;
7928 break;
7929 }
7930 spin_unlock_bh(&ar->data_lock);
7931
7932 if (ret)
7933 goto exit;
7934
7935 scan_time_msec = ar->hw->wiphy->max_remain_on_channel_duration * 2;
7936
7937 memset(&arg, 0, sizeof(arg));
7938 ath10k_wmi_start_scan_init(ar, &arg);
7939 arg.vdev_id = arvif->vdev_id;
7940 arg.scan_id = ATH10K_SCAN_ID;
7941 arg.n_channels = 1;
7942 arg.channels[0] = chan->center_freq;
7943 arg.dwell_time_active = scan_time_msec;
7944 arg.dwell_time_passive = scan_time_msec;
7945 arg.max_scan_time = scan_time_msec;
7946 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
7947 arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
7948 arg.burst_duration_ms = duration;
7949
7950 ret = ath10k_start_scan(ar, &arg);
7951 if (ret) {
7952 ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
7953 spin_lock_bh(&ar->data_lock);
7954 ar->scan.state = ATH10K_SCAN_IDLE;
7955 spin_unlock_bh(&ar->data_lock);
7956 goto exit;
7957 }
7958
7959 ret = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ);
7960 if (ret == 0) {
7961 ath10k_warn(ar, "failed to switch to channel for roc scan\n");
7962
7963 ret = ath10k_scan_stop(ar);
7964 if (ret)
7965 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
7966
7967 ret = -ETIMEDOUT;
7968 goto exit;
7969 }
7970
7971 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
7972 msecs_to_jiffies(duration));
7973
7974 ret = 0;
7975 exit:
7976 mutex_unlock(&ar->conf_mutex);
7977 return ret;
7978 }
7979
ath10k_cancel_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif)7980 static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw,
7981 struct ieee80211_vif *vif)
7982 {
7983 struct ath10k *ar = hw->priv;
7984
7985 mutex_lock(&ar->conf_mutex);
7986
7987 spin_lock_bh(&ar->data_lock);
7988 ar->scan.roc_notify = false;
7989 spin_unlock_bh(&ar->data_lock);
7990
7991 ath10k_scan_abort(ar);
7992
7993 mutex_unlock(&ar->conf_mutex);
7994
7995 cancel_delayed_work_sync(&ar->scan.timeout);
7996
7997 return 0;
7998 }
7999
8000 /*
8001 * Both RTS and Fragmentation threshold are interface-specific
8002 * in ath10k, but device-specific in mac80211.
8003 */
8004
ath10k_set_rts_threshold(struct ieee80211_hw * hw,u32 value)8005 static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
8006 {
8007 struct ath10k *ar = hw->priv;
8008 struct ath10k_vif *arvif;
8009 int ret = 0;
8010
8011 mutex_lock(&ar->conf_mutex);
8012 list_for_each_entry(arvif, &ar->arvifs, list) {
8013 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
8014 arvif->vdev_id, value);
8015
8016 ret = ath10k_mac_set_rts(arvif, value);
8017 if (ret) {
8018 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
8019 arvif->vdev_id, ret);
8020 break;
8021 }
8022 }
8023 mutex_unlock(&ar->conf_mutex);
8024
8025 return ret;
8026 }
8027
ath10k_mac_op_set_frag_threshold(struct ieee80211_hw * hw,u32 value)8028 static int ath10k_mac_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
8029 {
8030 /* Even though there's a WMI enum for fragmentation threshold no known
8031 * firmware actually implements it. Moreover it is not possible to rely
8032 * frame fragmentation to mac80211 because firmware clears the "more
8033 * fragments" bit in frame control making it impossible for remote
8034 * devices to reassemble frames.
8035 *
8036 * Hence implement a dummy callback just to say fragmentation isn't
8037 * supported. This effectively prevents mac80211 from doing frame
8038 * fragmentation in software.
8039 */
8040 return -EOPNOTSUPP;
8041 }
8042
ath10k_mac_wait_tx_complete(struct ath10k * ar)8043 void ath10k_mac_wait_tx_complete(struct ath10k *ar)
8044 {
8045 bool skip;
8046 long time_left;
8047
8048 /* mac80211 doesn't care if we really xmit queued frames or not
8049 * we'll collect those frames either way if we stop/delete vdevs
8050 */
8051
8052 if (ar->state == ATH10K_STATE_WEDGED)
8053 return;
8054
8055 time_left = wait_event_timeout(ar->htt.empty_tx_wq, ({
8056 bool empty;
8057
8058 spin_lock_bh(&ar->htt.tx_lock);
8059 empty = (ar->htt.num_pending_tx == 0);
8060 spin_unlock_bh(&ar->htt.tx_lock);
8061
8062 skip = (ar->state == ATH10K_STATE_WEDGED) ||
8063 test_bit(ATH10K_FLAG_CRASH_FLUSH,
8064 &ar->dev_flags);
8065
8066 (empty || skip);
8067 }), ATH10K_FLUSH_TIMEOUT_HZ);
8068
8069 if (time_left == 0 || skip)
8070 ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %ld\n",
8071 skip, ar->state, time_left);
8072 }
8073
ath10k_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)8074 static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
8075 u32 queues, bool drop)
8076 {
8077 struct ath10k *ar = hw->priv;
8078 struct ath10k_vif *arvif;
8079 u32 bitmap;
8080
8081 if (drop) {
8082 if (vif && vif->type == NL80211_IFTYPE_STATION) {
8083 bitmap = ~(1 << WMI_MGMT_TID);
8084 list_for_each_entry(arvif, &ar->arvifs, list) {
8085 if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
8086 ath10k_wmi_peer_flush(ar, arvif->vdev_id,
8087 arvif->bssid, bitmap);
8088 }
8089 ath10k_htt_flush_tx(&ar->htt);
8090 }
8091 return;
8092 }
8093
8094 mutex_lock(&ar->conf_mutex);
8095 ath10k_mac_wait_tx_complete(ar);
8096 mutex_unlock(&ar->conf_mutex);
8097 }
8098
8099 /* TODO: Implement this function properly
8100 * For now it is needed to reply to Probe Requests in IBSS mode.
8101 * Probably we need this information from FW.
8102 */
ath10k_tx_last_beacon(struct ieee80211_hw * hw)8103 static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
8104 {
8105 return 1;
8106 }
8107
ath10k_reconfig_complete(struct ieee80211_hw * hw,enum ieee80211_reconfig_type reconfig_type)8108 static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
8109 enum ieee80211_reconfig_type reconfig_type)
8110 {
8111 struct ath10k *ar = hw->priv;
8112 struct ath10k_vif *arvif;
8113
8114 if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
8115 return;
8116
8117 mutex_lock(&ar->conf_mutex);
8118
8119 /* If device failed to restart it will be in a different state, e.g.
8120 * ATH10K_STATE_WEDGED
8121 */
8122 if (ar->state == ATH10K_STATE_RESTARTED) {
8123 ath10k_info(ar, "device successfully recovered\n");
8124 ar->state = ATH10K_STATE_ON;
8125 ieee80211_wake_queues(ar->hw);
8126 clear_bit(ATH10K_FLAG_RESTARTING, &ar->dev_flags);
8127 if (ar->hw_params.hw_restart_disconnect) {
8128 list_for_each_entry(arvif, &ar->arvifs, list) {
8129 if (arvif->is_up && arvif->vdev_type == WMI_VDEV_TYPE_STA)
8130 ieee80211_hw_restart_disconnect(arvif->vif);
8131 }
8132 }
8133 }
8134
8135 mutex_unlock(&ar->conf_mutex);
8136 }
8137
8138 static void
ath10k_mac_update_bss_chan_survey(struct ath10k * ar,struct ieee80211_channel * channel)8139 ath10k_mac_update_bss_chan_survey(struct ath10k *ar,
8140 struct ieee80211_channel *channel)
8141 {
8142 int ret;
8143 enum wmi_bss_survey_req_type type = WMI_BSS_SURVEY_REQ_TYPE_READ;
8144
8145 lockdep_assert_held(&ar->conf_mutex);
8146
8147 if (!test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map) ||
8148 (ar->rx_channel != channel))
8149 return;
8150
8151 if (ar->scan.state != ATH10K_SCAN_IDLE) {
8152 ath10k_dbg(ar, ATH10K_DBG_MAC, "ignoring bss chan info request while scanning..\n");
8153 return;
8154 }
8155
8156 reinit_completion(&ar->bss_survey_done);
8157
8158 ret = ath10k_wmi_pdev_bss_chan_info_request(ar, type);
8159 if (ret) {
8160 ath10k_warn(ar, "failed to send pdev bss chan info request\n");
8161 return;
8162 }
8163
8164 ret = wait_for_completion_timeout(&ar->bss_survey_done, 3 * HZ);
8165 if (!ret) {
8166 ath10k_warn(ar, "bss channel survey timed out\n");
8167 return;
8168 }
8169 }
8170
ath10k_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)8171 static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
8172 struct survey_info *survey)
8173 {
8174 struct ath10k *ar = hw->priv;
8175 struct ieee80211_supported_band *sband;
8176 struct survey_info *ar_survey = &ar->survey[idx];
8177 int ret = 0;
8178
8179 mutex_lock(&ar->conf_mutex);
8180
8181 sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
8182 if (sband && idx >= sband->n_channels) {
8183 idx -= sband->n_channels;
8184 sband = NULL;
8185 }
8186
8187 if (!sband)
8188 sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
8189
8190 if (!sband || idx >= sband->n_channels) {
8191 ret = -ENOENT;
8192 goto exit;
8193 }
8194
8195 ath10k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
8196
8197 spin_lock_bh(&ar->data_lock);
8198 memcpy(survey, ar_survey, sizeof(*survey));
8199 spin_unlock_bh(&ar->data_lock);
8200
8201 survey->channel = &sband->channels[idx];
8202
8203 if (ar->rx_channel == survey->channel)
8204 survey->filled |= SURVEY_INFO_IN_USE;
8205
8206 exit:
8207 mutex_unlock(&ar->conf_mutex);
8208 return ret;
8209 }
8210
8211 static bool
ath10k_mac_bitrate_mask_get_single_nss(struct ath10k * ar,enum nl80211_band band,const struct cfg80211_bitrate_mask * mask,int * nss)8212 ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
8213 enum nl80211_band band,
8214 const struct cfg80211_bitrate_mask *mask,
8215 int *nss)
8216 {
8217 struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
8218 u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8219 u8 ht_nss_mask = 0;
8220 u8 vht_nss_mask = 0;
8221 int i;
8222
8223 if (mask->control[band].legacy)
8224 return false;
8225
8226 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
8227 if (mask->control[band].ht_mcs[i] == 0)
8228 continue;
8229 else if (mask->control[band].ht_mcs[i] ==
8230 sband->ht_cap.mcs.rx_mask[i])
8231 ht_nss_mask |= BIT(i);
8232 else
8233 return false;
8234 }
8235
8236 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
8237 if (mask->control[band].vht_mcs[i] == 0)
8238 continue;
8239 else if (mask->control[band].vht_mcs[i] ==
8240 ath10k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
8241 vht_nss_mask |= BIT(i);
8242 else
8243 return false;
8244 }
8245
8246 if (ht_nss_mask != vht_nss_mask)
8247 return false;
8248
8249 if (ht_nss_mask == 0)
8250 return false;
8251
8252 if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
8253 return false;
8254
8255 *nss = fls(ht_nss_mask);
8256
8257 return true;
8258 }
8259
ath10k_mac_set_fixed_rate_params(struct ath10k_vif * arvif,u8 rate,u8 nss,u8 sgi,u8 ldpc)8260 static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
8261 u8 rate, u8 nss, u8 sgi, u8 ldpc)
8262 {
8263 struct ath10k *ar = arvif->ar;
8264 u32 vdev_param;
8265 int ret;
8266
8267 lockdep_assert_held(&ar->conf_mutex);
8268
8269 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02x nss %u sgi %u\n",
8270 arvif->vdev_id, rate, nss, sgi);
8271
8272 vdev_param = ar->wmi.vdev_param->fixed_rate;
8273 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
8274 if (ret) {
8275 ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
8276 rate, ret);
8277 return ret;
8278 }
8279
8280 vdev_param = ar->wmi.vdev_param->nss;
8281 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
8282 if (ret) {
8283 ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
8284 return ret;
8285 }
8286
8287 vdev_param = ar->wmi.vdev_param->sgi;
8288 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
8289 if (ret) {
8290 ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
8291 return ret;
8292 }
8293
8294 vdev_param = ar->wmi.vdev_param->ldpc;
8295 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, ldpc);
8296 if (ret) {
8297 ath10k_warn(ar, "failed to set ldpc param %d: %d\n", ldpc, ret);
8298 return ret;
8299 }
8300
8301 return 0;
8302 }
8303
8304 static bool
ath10k_mac_can_set_bitrate_mask(struct ath10k * ar,enum nl80211_band band,const struct cfg80211_bitrate_mask * mask,bool allow_pfr)8305 ath10k_mac_can_set_bitrate_mask(struct ath10k *ar,
8306 enum nl80211_band band,
8307 const struct cfg80211_bitrate_mask *mask,
8308 bool allow_pfr)
8309 {
8310 int i;
8311 u16 vht_mcs;
8312
8313 /* Due to firmware limitation in WMI_PEER_ASSOC_CMDID it is impossible
8314 * to express all VHT MCS rate masks. Effectively only the following
8315 * ranges can be used: none, 0-7, 0-8 and 0-9.
8316 */
8317 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8318 vht_mcs = mask->control[band].vht_mcs[i];
8319
8320 switch (vht_mcs) {
8321 case 0:
8322 case BIT(8) - 1:
8323 case BIT(9) - 1:
8324 case BIT(10) - 1:
8325 break;
8326 default:
8327 if (!allow_pfr)
8328 ath10k_warn(ar, "refusing bitrate mask with missing 0-7 VHT MCS rates\n");
8329 return false;
8330 }
8331 }
8332
8333 return true;
8334 }
8335
ath10k_mac_set_vht_bitrate_mask_fixup(struct ath10k * ar,struct ath10k_vif * arvif,struct ieee80211_sta * sta)8336 static bool ath10k_mac_set_vht_bitrate_mask_fixup(struct ath10k *ar,
8337 struct ath10k_vif *arvif,
8338 struct ieee80211_sta *sta)
8339 {
8340 int err;
8341 u8 rate = arvif->vht_pfr;
8342
8343 /* skip non vht and multiple rate peers */
8344 if (!sta->deflink.vht_cap.vht_supported || arvif->vht_num_rates != 1)
8345 return false;
8346
8347 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
8348 WMI_PEER_PARAM_FIXED_RATE, rate);
8349 if (err)
8350 ath10k_warn(ar, "failed to enable STA %pM peer fixed rate: %d\n",
8351 sta->addr, err);
8352
8353 return true;
8354 }
8355
ath10k_mac_set_bitrate_mask_iter(void * data,struct ieee80211_sta * sta)8356 static void ath10k_mac_set_bitrate_mask_iter(void *data,
8357 struct ieee80211_sta *sta)
8358 {
8359 struct ath10k_vif *arvif = data;
8360 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
8361 struct ath10k *ar = arvif->ar;
8362
8363 if (arsta->arvif != arvif)
8364 return;
8365
8366 if (ath10k_mac_set_vht_bitrate_mask_fixup(ar, arvif, sta))
8367 return;
8368
8369 spin_lock_bh(&ar->data_lock);
8370 arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
8371 spin_unlock_bh(&ar->data_lock);
8372
8373 ieee80211_queue_work(ar->hw, &arsta->update_wk);
8374 }
8375
ath10k_mac_clr_bitrate_mask_iter(void * data,struct ieee80211_sta * sta)8376 static void ath10k_mac_clr_bitrate_mask_iter(void *data,
8377 struct ieee80211_sta *sta)
8378 {
8379 struct ath10k_vif *arvif = data;
8380 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
8381 struct ath10k *ar = arvif->ar;
8382 int err;
8383
8384 /* clear vht peers only */
8385 if (arsta->arvif != arvif || !sta->deflink.vht_cap.vht_supported)
8386 return;
8387
8388 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
8389 WMI_PEER_PARAM_FIXED_RATE,
8390 WMI_FIXED_RATE_NONE);
8391 if (err)
8392 ath10k_warn(ar, "failed to clear STA %pM peer fixed rate: %d\n",
8393 sta->addr, err);
8394 }
8395
ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct cfg80211_bitrate_mask * mask)8396 static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
8397 struct ieee80211_vif *vif,
8398 const struct cfg80211_bitrate_mask *mask)
8399 {
8400 struct ath10k_vif *arvif = (void *)vif->drv_priv;
8401 struct cfg80211_chan_def def;
8402 struct ath10k *ar = arvif->ar;
8403 enum nl80211_band band;
8404 const u8 *ht_mcs_mask;
8405 const u16 *vht_mcs_mask;
8406 u8 rate;
8407 u8 nss;
8408 u8 sgi;
8409 u8 ldpc;
8410 int single_nss;
8411 int ret;
8412 int vht_num_rates, allow_pfr;
8413 u8 vht_pfr;
8414 bool update_bitrate_mask = true;
8415
8416 if (ath10k_mac_vif_chan(vif, &def))
8417 return -EPERM;
8418
8419 band = def.chan->band;
8420 ht_mcs_mask = mask->control[band].ht_mcs;
8421 vht_mcs_mask = mask->control[band].vht_mcs;
8422 ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
8423
8424 sgi = mask->control[band].gi;
8425 if (sgi == NL80211_TXRATE_FORCE_LGI)
8426 return -EINVAL;
8427
8428 allow_pfr = test_bit(ATH10K_FW_FEATURE_PEER_FIXED_RATE,
8429 ar->normal_mode_fw.fw_file.fw_features);
8430 if (allow_pfr) {
8431 mutex_lock(&ar->conf_mutex);
8432 ieee80211_iterate_stations_atomic(ar->hw,
8433 ath10k_mac_clr_bitrate_mask_iter,
8434 arvif);
8435 mutex_unlock(&ar->conf_mutex);
8436 }
8437
8438 if (ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask,
8439 &vht_num_rates)) {
8440 ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
8441 &rate, &nss,
8442 false);
8443 if (ret) {
8444 ath10k_warn(ar, "failed to get single rate for vdev %i: %d\n",
8445 arvif->vdev_id, ret);
8446 return ret;
8447 }
8448 } else if (ath10k_mac_bitrate_mask_get_single_nss(ar, band, mask,
8449 &single_nss)) {
8450 rate = WMI_FIXED_RATE_NONE;
8451 nss = single_nss;
8452 } else {
8453 rate = WMI_FIXED_RATE_NONE;
8454 nss = min(ar->num_rf_chains,
8455 max(ath10k_mac_max_ht_nss(ht_mcs_mask),
8456 ath10k_mac_max_vht_nss(vht_mcs_mask)));
8457
8458 if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask,
8459 allow_pfr)) {
8460 u8 vht_nss;
8461
8462 if (!allow_pfr || vht_num_rates != 1)
8463 return -EINVAL;
8464
8465 /* Reach here, firmware supports peer fixed rate and has
8466 * single vht rate, and don't update vif birate_mask, as
8467 * the rate only for specific peer.
8468 */
8469 ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
8470 &vht_pfr,
8471 &vht_nss,
8472 true);
8473 update_bitrate_mask = false;
8474 } else {
8475 vht_pfr = 0;
8476 }
8477
8478 mutex_lock(&ar->conf_mutex);
8479
8480 if (update_bitrate_mask)
8481 arvif->bitrate_mask = *mask;
8482 arvif->vht_num_rates = vht_num_rates;
8483 arvif->vht_pfr = vht_pfr;
8484 ieee80211_iterate_stations_atomic(ar->hw,
8485 ath10k_mac_set_bitrate_mask_iter,
8486 arvif);
8487
8488 mutex_unlock(&ar->conf_mutex);
8489 }
8490
8491 mutex_lock(&ar->conf_mutex);
8492
8493 ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
8494 if (ret) {
8495 ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
8496 arvif->vdev_id, ret);
8497 goto exit;
8498 }
8499
8500 exit:
8501 mutex_unlock(&ar->conf_mutex);
8502
8503 return ret;
8504 }
8505
ath10k_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)8506 static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
8507 struct ieee80211_vif *vif,
8508 struct ieee80211_sta *sta,
8509 u32 changed)
8510 {
8511 struct ath10k *ar = hw->priv;
8512 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
8513 struct ath10k_vif *arvif = (void *)vif->drv_priv;
8514 struct ath10k_peer *peer;
8515 u32 bw, smps;
8516
8517 spin_lock_bh(&ar->data_lock);
8518
8519 peer = ath10k_peer_find(ar, arvif->vdev_id, sta->addr);
8520 if (!peer) {
8521 spin_unlock_bh(&ar->data_lock);
8522 ath10k_warn(ar, "mac sta rc update failed to find peer %pM on vdev %i\n",
8523 sta->addr, arvif->vdev_id);
8524 return;
8525 }
8526
8527 ath10k_dbg(ar, ATH10K_DBG_STA,
8528 "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
8529 sta->addr, changed, sta->deflink.bandwidth,
8530 sta->deflink.rx_nss,
8531 sta->deflink.smps_mode);
8532
8533 if (changed & IEEE80211_RC_BW_CHANGED) {
8534 bw = WMI_PEER_CHWIDTH_20MHZ;
8535
8536 switch (sta->deflink.bandwidth) {
8537 case IEEE80211_STA_RX_BW_20:
8538 bw = WMI_PEER_CHWIDTH_20MHZ;
8539 break;
8540 case IEEE80211_STA_RX_BW_40:
8541 bw = WMI_PEER_CHWIDTH_40MHZ;
8542 break;
8543 case IEEE80211_STA_RX_BW_80:
8544 bw = WMI_PEER_CHWIDTH_80MHZ;
8545 break;
8546 case IEEE80211_STA_RX_BW_160:
8547 bw = WMI_PEER_CHWIDTH_160MHZ;
8548 break;
8549 default:
8550 ath10k_warn(ar, "Invalid bandwidth %d in rc update for %pM\n",
8551 sta->deflink.bandwidth, sta->addr);
8552 bw = WMI_PEER_CHWIDTH_20MHZ;
8553 break;
8554 }
8555
8556 arsta->bw = bw;
8557 }
8558
8559 if (changed & IEEE80211_RC_NSS_CHANGED)
8560 arsta->nss = sta->deflink.rx_nss;
8561
8562 if (changed & IEEE80211_RC_SMPS_CHANGED) {
8563 smps = WMI_PEER_SMPS_PS_NONE;
8564
8565 switch (sta->deflink.smps_mode) {
8566 case IEEE80211_SMPS_AUTOMATIC:
8567 case IEEE80211_SMPS_OFF:
8568 smps = WMI_PEER_SMPS_PS_NONE;
8569 break;
8570 case IEEE80211_SMPS_STATIC:
8571 smps = WMI_PEER_SMPS_STATIC;
8572 break;
8573 case IEEE80211_SMPS_DYNAMIC:
8574 smps = WMI_PEER_SMPS_DYNAMIC;
8575 break;
8576 case IEEE80211_SMPS_NUM_MODES:
8577 ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
8578 sta->deflink.smps_mode, sta->addr);
8579 smps = WMI_PEER_SMPS_PS_NONE;
8580 break;
8581 }
8582
8583 arsta->smps = smps;
8584 }
8585
8586 arsta->changed |= changed;
8587
8588 spin_unlock_bh(&ar->data_lock);
8589
8590 ieee80211_queue_work(hw, &arsta->update_wk);
8591 }
8592
ath10k_offset_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,s64 tsf_offset)8593 static void ath10k_offset_tsf(struct ieee80211_hw *hw,
8594 struct ieee80211_vif *vif, s64 tsf_offset)
8595 {
8596 struct ath10k *ar = hw->priv;
8597 struct ath10k_vif *arvif = (void *)vif->drv_priv;
8598 u32 offset, vdev_param;
8599 int ret;
8600
8601 if (tsf_offset < 0) {
8602 vdev_param = ar->wmi.vdev_param->dec_tsf;
8603 offset = -tsf_offset;
8604 } else {
8605 vdev_param = ar->wmi.vdev_param->inc_tsf;
8606 offset = tsf_offset;
8607 }
8608
8609 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
8610 vdev_param, offset);
8611
8612 if (ret && ret != -EOPNOTSUPP)
8613 ath10k_warn(ar, "failed to set tsf offset %d cmd %d: %d\n",
8614 offset, vdev_param, ret);
8615 }
8616
ath10k_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)8617 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
8618 struct ieee80211_vif *vif,
8619 struct ieee80211_ampdu_params *params)
8620 {
8621 struct ath10k *ar = hw->priv;
8622 struct ath10k_vif *arvif = (void *)vif->drv_priv;
8623 struct ieee80211_sta *sta = params->sta;
8624 enum ieee80211_ampdu_mlme_action action = params->action;
8625 u16 tid = params->tid;
8626
8627 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %u action %d\n",
8628 arvif->vdev_id, sta->addr, tid, action);
8629
8630 switch (action) {
8631 case IEEE80211_AMPDU_RX_START:
8632 case IEEE80211_AMPDU_RX_STOP:
8633 /* HTT AddBa/DelBa events trigger mac80211 Rx BA session
8634 * creation/removal. Do we need to verify this?
8635 */
8636 return 0;
8637 case IEEE80211_AMPDU_TX_START:
8638 case IEEE80211_AMPDU_TX_STOP_CONT:
8639 case IEEE80211_AMPDU_TX_STOP_FLUSH:
8640 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8641 case IEEE80211_AMPDU_TX_OPERATIONAL:
8642 /* Firmware offloads Tx aggregation entirely so deny mac80211
8643 * Tx aggregation requests.
8644 */
8645 return -EOPNOTSUPP;
8646 }
8647
8648 return -EINVAL;
8649 }
8650
8651 static void
ath10k_mac_update_rx_channel(struct ath10k * ar,struct ieee80211_chanctx_conf * ctx,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs)8652 ath10k_mac_update_rx_channel(struct ath10k *ar,
8653 struct ieee80211_chanctx_conf *ctx,
8654 struct ieee80211_vif_chanctx_switch *vifs,
8655 int n_vifs)
8656 {
8657 struct cfg80211_chan_def *def = NULL;
8658
8659 /* Both locks are required because ar->rx_channel is modified. This
8660 * allows readers to hold either lock.
8661 */
8662 lockdep_assert_held(&ar->conf_mutex);
8663 lockdep_assert_held(&ar->data_lock);
8664
8665 WARN_ON(ctx && vifs);
8666 WARN_ON(vifs && !n_vifs);
8667
8668 /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
8669 * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
8670 * ppdu on Rx may reduce performance on low-end systems. It should be
8671 * possible to make tables/hashmaps to speed the lookup up (be vary of
8672 * cpu data cache lines though regarding sizes) but to keep the initial
8673 * implementation simple and less intrusive fallback to the slow lookup
8674 * only for multi-channel cases. Single-channel cases will remain to
8675 * use the old channel derival and thus performance should not be
8676 * affected much.
8677 */
8678 rcu_read_lock();
8679 if (!ctx && ath10k_mac_num_chanctxs(ar) == 1) {
8680 ieee80211_iter_chan_contexts_atomic(ar->hw,
8681 ath10k_mac_get_any_chandef_iter,
8682 &def);
8683
8684 if (vifs)
8685 def = &vifs[0].new_ctx->def;
8686
8687 ar->rx_channel = def->chan;
8688 } else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
8689 (ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
8690 /* During driver restart due to firmware assert, since mac80211
8691 * already has valid channel context for given radio, channel
8692 * context iteration return num_chanctx > 0. So fix rx_channel
8693 * when restart is in progress.
8694 */
8695 ar->rx_channel = ctx->def.chan;
8696 } else {
8697 ar->rx_channel = NULL;
8698 }
8699 rcu_read_unlock();
8700 }
8701
8702 static void
ath10k_mac_update_vif_chan(struct ath10k * ar,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs)8703 ath10k_mac_update_vif_chan(struct ath10k *ar,
8704 struct ieee80211_vif_chanctx_switch *vifs,
8705 int n_vifs)
8706 {
8707 struct ath10k_vif *arvif;
8708 int ret;
8709 int i;
8710
8711 lockdep_assert_held(&ar->conf_mutex);
8712
8713 /* First stop monitor interface. Some FW versions crash if there's a
8714 * lone monitor interface.
8715 */
8716 if (ar->monitor_started)
8717 ath10k_monitor_stop(ar);
8718
8719 for (i = 0; i < n_vifs; i++) {
8720 arvif = (void *)vifs[i].vif->drv_priv;
8721
8722 ath10k_dbg(ar, ATH10K_DBG_MAC,
8723 "mac chanctx switch vdev_id %i freq %u->%u width %d->%d\n",
8724 arvif->vdev_id,
8725 vifs[i].old_ctx->def.chan->center_freq,
8726 vifs[i].new_ctx->def.chan->center_freq,
8727 vifs[i].old_ctx->def.width,
8728 vifs[i].new_ctx->def.width);
8729
8730 if (WARN_ON(!arvif->is_started))
8731 continue;
8732
8733 if (WARN_ON(!arvif->is_up))
8734 continue;
8735
8736 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
8737 if (ret) {
8738 ath10k_warn(ar, "failed to down vdev %d: %d\n",
8739 arvif->vdev_id, ret);
8740 continue;
8741 }
8742 }
8743
8744 /* All relevant vdevs are downed and associated channel resources
8745 * should be available for the channel switch now.
8746 */
8747
8748 spin_lock_bh(&ar->data_lock);
8749 ath10k_mac_update_rx_channel(ar, NULL, vifs, n_vifs);
8750 spin_unlock_bh(&ar->data_lock);
8751
8752 for (i = 0; i < n_vifs; i++) {
8753 arvif = (void *)vifs[i].vif->drv_priv;
8754
8755 if (WARN_ON(!arvif->is_started))
8756 continue;
8757
8758 if (WARN_ON(!arvif->is_up))
8759 continue;
8760
8761 ret = ath10k_mac_setup_bcn_tmpl(arvif);
8762 if (ret)
8763 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
8764 ret);
8765
8766 ret = ath10k_mac_setup_prb_tmpl(arvif);
8767 if (ret)
8768 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
8769 ret);
8770
8771 ret = ath10k_vdev_restart(arvif, &vifs[i].new_ctx->def);
8772 if (ret) {
8773 ath10k_warn(ar, "failed to restart vdev %d: %d\n",
8774 arvif->vdev_id, ret);
8775 continue;
8776 }
8777
8778 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
8779 arvif->bssid);
8780 if (ret) {
8781 ath10k_warn(ar, "failed to bring vdev up %d: %d\n",
8782 arvif->vdev_id, ret);
8783 continue;
8784 }
8785 }
8786
8787 ath10k_monitor_recalc(ar);
8788 }
8789
8790 static int
ath10k_mac_op_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)8791 ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
8792 struct ieee80211_chanctx_conf *ctx)
8793 {
8794 struct ath10k *ar = hw->priv;
8795
8796 ath10k_dbg(ar, ATH10K_DBG_MAC,
8797 "mac chanctx add freq %u width %d ptr %pK\n",
8798 ctx->def.chan->center_freq, ctx->def.width, ctx);
8799
8800 mutex_lock(&ar->conf_mutex);
8801
8802 spin_lock_bh(&ar->data_lock);
8803 ath10k_mac_update_rx_channel(ar, ctx, NULL, 0);
8804 spin_unlock_bh(&ar->data_lock);
8805
8806 ath10k_recalc_radar_detection(ar);
8807 ath10k_monitor_recalc(ar);
8808
8809 mutex_unlock(&ar->conf_mutex);
8810
8811 return 0;
8812 }
8813
8814 static void
ath10k_mac_op_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)8815 ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
8816 struct ieee80211_chanctx_conf *ctx)
8817 {
8818 struct ath10k *ar = hw->priv;
8819
8820 ath10k_dbg(ar, ATH10K_DBG_MAC,
8821 "mac chanctx remove freq %u width %d ptr %pK\n",
8822 ctx->def.chan->center_freq, ctx->def.width, ctx);
8823
8824 mutex_lock(&ar->conf_mutex);
8825
8826 spin_lock_bh(&ar->data_lock);
8827 ath10k_mac_update_rx_channel(ar, NULL, NULL, 0);
8828 spin_unlock_bh(&ar->data_lock);
8829
8830 ath10k_recalc_radar_detection(ar);
8831 ath10k_monitor_recalc(ar);
8832
8833 mutex_unlock(&ar->conf_mutex);
8834 }
8835
8836 struct ath10k_mac_change_chanctx_arg {
8837 struct ieee80211_chanctx_conf *ctx;
8838 struct ieee80211_vif_chanctx_switch *vifs;
8839 int n_vifs;
8840 int next_vif;
8841 };
8842
8843 static void
ath10k_mac_change_chanctx_cnt_iter(void * data,u8 * mac,struct ieee80211_vif * vif)8844 ath10k_mac_change_chanctx_cnt_iter(void *data, u8 *mac,
8845 struct ieee80211_vif *vif)
8846 {
8847 struct ath10k_mac_change_chanctx_arg *arg = data;
8848
8849 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) != arg->ctx)
8850 return;
8851
8852 arg->n_vifs++;
8853 }
8854
8855 static void
ath10k_mac_change_chanctx_fill_iter(void * data,u8 * mac,struct ieee80211_vif * vif)8856 ath10k_mac_change_chanctx_fill_iter(void *data, u8 *mac,
8857 struct ieee80211_vif *vif)
8858 {
8859 struct ath10k_mac_change_chanctx_arg *arg = data;
8860 struct ieee80211_chanctx_conf *ctx;
8861
8862 ctx = rcu_access_pointer(vif->bss_conf.chanctx_conf);
8863 if (ctx != arg->ctx)
8864 return;
8865
8866 if (WARN_ON(arg->next_vif == arg->n_vifs))
8867 return;
8868
8869 arg->vifs[arg->next_vif].vif = vif;
8870 arg->vifs[arg->next_vif].old_ctx = ctx;
8871 arg->vifs[arg->next_vif].new_ctx = ctx;
8872 arg->next_vif++;
8873 }
8874
8875 static void
ath10k_mac_op_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)8876 ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
8877 struct ieee80211_chanctx_conf *ctx,
8878 u32 changed)
8879 {
8880 struct ath10k *ar = hw->priv;
8881 struct ath10k_mac_change_chanctx_arg arg = { .ctx = ctx };
8882
8883 mutex_lock(&ar->conf_mutex);
8884
8885 ath10k_dbg(ar, ATH10K_DBG_MAC,
8886 "mac chanctx change freq %u width %d ptr %pK changed %x\n",
8887 ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
8888
8889 /* This shouldn't really happen because channel switching should use
8890 * switch_vif_chanctx().
8891 */
8892 if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
8893 goto unlock;
8894
8895 if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) {
8896 ieee80211_iterate_active_interfaces_atomic(
8897 hw,
8898 ATH10K_ITER_NORMAL_FLAGS,
8899 ath10k_mac_change_chanctx_cnt_iter,
8900 &arg);
8901 if (arg.n_vifs == 0)
8902 goto radar;
8903
8904 arg.vifs = kcalloc(arg.n_vifs, sizeof(arg.vifs[0]),
8905 GFP_KERNEL);
8906 if (!arg.vifs)
8907 goto radar;
8908
8909 ieee80211_iterate_active_interfaces_atomic(
8910 hw,
8911 ATH10K_ITER_NORMAL_FLAGS,
8912 ath10k_mac_change_chanctx_fill_iter,
8913 &arg);
8914 ath10k_mac_update_vif_chan(ar, arg.vifs, arg.n_vifs);
8915 kfree(arg.vifs);
8916 }
8917
8918 radar:
8919 ath10k_recalc_radar_detection(ar);
8920
8921 /* FIXME: How to configure Rx chains properly? */
8922
8923 /* No other actions are actually necessary. Firmware maintains channel
8924 * definitions per vdev internally and there's no host-side channel
8925 * context abstraction to configure, e.g. channel width.
8926 */
8927
8928 unlock:
8929 mutex_unlock(&ar->conf_mutex);
8930 }
8931
8932 static int
ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)8933 ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
8934 struct ieee80211_vif *vif,
8935 struct ieee80211_bss_conf *link_conf,
8936 struct ieee80211_chanctx_conf *ctx)
8937 {
8938 struct ath10k *ar = hw->priv;
8939 struct ath10k_vif *arvif = (void *)vif->drv_priv;
8940 int ret;
8941
8942 mutex_lock(&ar->conf_mutex);
8943
8944 ath10k_dbg(ar, ATH10K_DBG_MAC,
8945 "mac chanctx assign ptr %pK vdev_id %i\n",
8946 ctx, arvif->vdev_id);
8947
8948 if (WARN_ON(arvif->is_started)) {
8949 mutex_unlock(&ar->conf_mutex);
8950 return -EBUSY;
8951 }
8952
8953 ret = ath10k_vdev_start(arvif, &ctx->def);
8954 if (ret) {
8955 ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
8956 arvif->vdev_id, vif->addr,
8957 ctx->def.chan->center_freq, ret);
8958 goto err;
8959 }
8960
8961 arvif->is_started = true;
8962
8963 ret = ath10k_mac_vif_setup_ps(arvif);
8964 if (ret) {
8965 ath10k_warn(ar, "failed to update vdev %i ps: %d\n",
8966 arvif->vdev_id, ret);
8967 goto err_stop;
8968 }
8969
8970 if (vif->type == NL80211_IFTYPE_MONITOR) {
8971 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
8972 if (ret) {
8973 ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
8974 arvif->vdev_id, ret);
8975 goto err_stop;
8976 }
8977
8978 arvif->is_up = true;
8979 }
8980
8981 if (ath10k_mac_can_set_cts_prot(arvif)) {
8982 ret = ath10k_mac_set_cts_prot(arvif);
8983 if (ret)
8984 ath10k_warn(ar, "failed to set cts protection for vdev %d: %d\n",
8985 arvif->vdev_id, ret);
8986 }
8987
8988 if (ath10k_peer_stats_enabled(ar) &&
8989 ar->hw_params.tx_stats_over_pktlog) {
8990 ar->pktlog_filter |= ATH10K_PKTLOG_PEER_STATS;
8991 ret = ath10k_wmi_pdev_pktlog_enable(ar,
8992 ar->pktlog_filter);
8993 if (ret) {
8994 ath10k_warn(ar, "failed to enable pktlog %d\n", ret);
8995 goto err_stop;
8996 }
8997 }
8998
8999 mutex_unlock(&ar->conf_mutex);
9000 return 0;
9001
9002 err_stop:
9003 ath10k_vdev_stop(arvif);
9004 arvif->is_started = false;
9005 ath10k_mac_vif_setup_ps(arvif);
9006
9007 err:
9008 mutex_unlock(&ar->conf_mutex);
9009 return ret;
9010 }
9011
9012 static void
ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)9013 ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
9014 struct ieee80211_vif *vif,
9015 struct ieee80211_bss_conf *link_conf,
9016 struct ieee80211_chanctx_conf *ctx)
9017 {
9018 struct ath10k *ar = hw->priv;
9019 struct ath10k_vif *arvif = (void *)vif->drv_priv;
9020 int ret;
9021
9022 mutex_lock(&ar->conf_mutex);
9023
9024 ath10k_dbg(ar, ATH10K_DBG_MAC,
9025 "mac chanctx unassign ptr %pK vdev_id %i\n",
9026 ctx, arvif->vdev_id);
9027
9028 WARN_ON(!arvif->is_started);
9029
9030 if (vif->type == NL80211_IFTYPE_MONITOR) {
9031 WARN_ON(!arvif->is_up);
9032
9033 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
9034 if (ret)
9035 ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
9036 arvif->vdev_id, ret);
9037
9038 arvif->is_up = false;
9039 }
9040
9041 ret = ath10k_vdev_stop(arvif);
9042 if (ret)
9043 ath10k_warn(ar, "failed to stop vdev %i: %d\n",
9044 arvif->vdev_id, ret);
9045
9046 arvif->is_started = false;
9047
9048 mutex_unlock(&ar->conf_mutex);
9049 }
9050
9051 static int
ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode)9052 ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
9053 struct ieee80211_vif_chanctx_switch *vifs,
9054 int n_vifs,
9055 enum ieee80211_chanctx_switch_mode mode)
9056 {
9057 struct ath10k *ar = hw->priv;
9058
9059 mutex_lock(&ar->conf_mutex);
9060
9061 ath10k_dbg(ar, ATH10K_DBG_MAC,
9062 "mac chanctx switch n_vifs %d mode %d\n",
9063 n_vifs, mode);
9064 ath10k_mac_update_vif_chan(ar, vifs, n_vifs);
9065
9066 mutex_unlock(&ar->conf_mutex);
9067 return 0;
9068 }
9069
ath10k_mac_op_sta_pre_rcu_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)9070 static void ath10k_mac_op_sta_pre_rcu_remove(struct ieee80211_hw *hw,
9071 struct ieee80211_vif *vif,
9072 struct ieee80211_sta *sta)
9073 {
9074 struct ath10k *ar;
9075 struct ath10k_peer *peer;
9076
9077 ar = hw->priv;
9078
9079 list_for_each_entry(peer, &ar->peers, list)
9080 if (peer->sta == sta)
9081 peer->removed = true;
9082 }
9083
9084 /* HT MCS parameters with Nss = 1 */
9085 static const struct ath10k_index_ht_data_rate_type supported_ht_mcs_rate_nss1[] = {
9086 /* MCS L20 L40 S20 S40 */
9087 {0, { 65, 135, 72, 150} },
9088 {1, { 130, 270, 144, 300} },
9089 {2, { 195, 405, 217, 450} },
9090 {3, { 260, 540, 289, 600} },
9091 {4, { 390, 810, 433, 900} },
9092 {5, { 520, 1080, 578, 1200} },
9093 {6, { 585, 1215, 650, 1350} },
9094 {7, { 650, 1350, 722, 1500} }
9095 };
9096
9097 /* HT MCS parameters with Nss = 2 */
9098 static const struct ath10k_index_ht_data_rate_type supported_ht_mcs_rate_nss2[] = {
9099 /* MCS L20 L40 S20 S40 */
9100 {0, {130, 270, 144, 300} },
9101 {1, {260, 540, 289, 600} },
9102 {2, {390, 810, 433, 900} },
9103 {3, {520, 1080, 578, 1200} },
9104 {4, {780, 1620, 867, 1800} },
9105 {5, {1040, 2160, 1156, 2400} },
9106 {6, {1170, 2430, 1300, 2700} },
9107 {7, {1300, 2700, 1444, 3000} }
9108 };
9109
9110 /* MCS parameters with Nss = 1 */
9111 static const struct ath10k_index_vht_data_rate_type supported_vht_mcs_rate_nss1[] = {
9112 /* MCS L80 S80 L40 S40 L20 S20 */
9113 {0, {293, 325}, {135, 150}, {65, 72} },
9114 {1, {585, 650}, {270, 300}, {130, 144} },
9115 {2, {878, 975}, {405, 450}, {195, 217} },
9116 {3, {1170, 1300}, {540, 600}, {260, 289} },
9117 {4, {1755, 1950}, {810, 900}, {390, 433} },
9118 {5, {2340, 2600}, {1080, 1200}, {520, 578} },
9119 {6, {2633, 2925}, {1215, 1350}, {585, 650} },
9120 {7, {2925, 3250}, {1350, 1500}, {650, 722} },
9121 {8, {3510, 3900}, {1620, 1800}, {780, 867} },
9122 {9, {3900, 4333}, {1800, 2000}, {865, 960} }
9123 };
9124
9125 /*MCS parameters with Nss = 2 */
9126 static const struct ath10k_index_vht_data_rate_type supported_vht_mcs_rate_nss2[] = {
9127 /* MCS L80 S80 L40 S40 L20 S20 */
9128 {0, {585, 650}, {270, 300}, {130, 144} },
9129 {1, {1170, 1300}, {540, 600}, {260, 289} },
9130 {2, {1755, 1950}, {810, 900}, {390, 433} },
9131 {3, {2340, 2600}, {1080, 1200}, {520, 578} },
9132 {4, {3510, 3900}, {1620, 1800}, {780, 867} },
9133 {5, {4680, 5200}, {2160, 2400}, {1040, 1156} },
9134 {6, {5265, 5850}, {2430, 2700}, {1170, 1300} },
9135 {7, {5850, 6500}, {2700, 3000}, {1300, 1444} },
9136 {8, {7020, 7800}, {3240, 3600}, {1560, 1733} },
9137 {9, {7800, 8667}, {3600, 4000}, {1730, 1920} }
9138 };
9139
ath10k_mac_get_rate_flags_ht(struct ath10k * ar,u32 rate,u8 nss,u8 mcs,u8 * flags,u8 * bw)9140 static void ath10k_mac_get_rate_flags_ht(struct ath10k *ar, u32 rate, u8 nss, u8 mcs,
9141 u8 *flags, u8 *bw)
9142 {
9143 struct ath10k_index_ht_data_rate_type *mcs_rate;
9144 u8 index;
9145 size_t len_nss1 = ARRAY_SIZE(supported_ht_mcs_rate_nss1);
9146 size_t len_nss2 = ARRAY_SIZE(supported_ht_mcs_rate_nss2);
9147
9148 if (mcs >= (len_nss1 + len_nss2)) {
9149 ath10k_warn(ar, "not supported mcs %d in current rate table", mcs);
9150 return;
9151 }
9152
9153 mcs_rate = (struct ath10k_index_ht_data_rate_type *)
9154 ((nss == 1) ? &supported_ht_mcs_rate_nss1 :
9155 &supported_ht_mcs_rate_nss2);
9156
9157 if (mcs >= len_nss1)
9158 index = mcs - len_nss1;
9159 else
9160 index = mcs;
9161
9162 if (rate == mcs_rate[index].supported_rate[0]) {
9163 *bw = RATE_INFO_BW_20;
9164 } else if (rate == mcs_rate[index].supported_rate[1]) {
9165 *bw |= RATE_INFO_BW_40;
9166 } else if (rate == mcs_rate[index].supported_rate[2]) {
9167 *bw |= RATE_INFO_BW_20;
9168 *flags |= RATE_INFO_FLAGS_SHORT_GI;
9169 } else if (rate == mcs_rate[index].supported_rate[3]) {
9170 *bw |= RATE_INFO_BW_40;
9171 *flags |= RATE_INFO_FLAGS_SHORT_GI;
9172 } else {
9173 ath10k_warn(ar, "invalid ht params rate %d 100kbps nss %d mcs %d",
9174 rate, nss, mcs);
9175 }
9176 }
9177
ath10k_mac_get_rate_flags_vht(struct ath10k * ar,u32 rate,u8 nss,u8 mcs,u8 * flags,u8 * bw)9178 static void ath10k_mac_get_rate_flags_vht(struct ath10k *ar, u32 rate, u8 nss, u8 mcs,
9179 u8 *flags, u8 *bw)
9180 {
9181 struct ath10k_index_vht_data_rate_type *mcs_rate;
9182
9183 mcs_rate = (struct ath10k_index_vht_data_rate_type *)
9184 ((nss == 1) ? &supported_vht_mcs_rate_nss1 :
9185 &supported_vht_mcs_rate_nss2);
9186
9187 if (rate == mcs_rate[mcs].supported_VHT80_rate[0]) {
9188 *bw = RATE_INFO_BW_80;
9189 } else if (rate == mcs_rate[mcs].supported_VHT80_rate[1]) {
9190 *bw = RATE_INFO_BW_80;
9191 *flags |= RATE_INFO_FLAGS_SHORT_GI;
9192 } else if (rate == mcs_rate[mcs].supported_VHT40_rate[0]) {
9193 *bw = RATE_INFO_BW_40;
9194 } else if (rate == mcs_rate[mcs].supported_VHT40_rate[1]) {
9195 *bw = RATE_INFO_BW_40;
9196 *flags |= RATE_INFO_FLAGS_SHORT_GI;
9197 } else if (rate == mcs_rate[mcs].supported_VHT20_rate[0]) {
9198 *bw = RATE_INFO_BW_20;
9199 } else if (rate == mcs_rate[mcs].supported_VHT20_rate[1]) {
9200 *bw = RATE_INFO_BW_20;
9201 *flags |= RATE_INFO_FLAGS_SHORT_GI;
9202 } else {
9203 ath10k_warn(ar, "invalid vht params rate %d 100kbps nss %d mcs %d",
9204 rate, nss, mcs);
9205 }
9206 }
9207
ath10k_mac_get_rate_flags(struct ath10k * ar,u32 rate,enum ath10k_phy_mode mode,u8 nss,u8 mcs,u8 * flags,u8 * bw)9208 static void ath10k_mac_get_rate_flags(struct ath10k *ar, u32 rate,
9209 enum ath10k_phy_mode mode, u8 nss, u8 mcs,
9210 u8 *flags, u8 *bw)
9211 {
9212 if (mode == ATH10K_PHY_MODE_HT) {
9213 *flags = RATE_INFO_FLAGS_MCS;
9214 ath10k_mac_get_rate_flags_ht(ar, rate, nss, mcs, flags, bw);
9215 } else if (mode == ATH10K_PHY_MODE_VHT) {
9216 *flags = RATE_INFO_FLAGS_VHT_MCS;
9217 ath10k_mac_get_rate_flags_vht(ar, rate, nss, mcs, flags, bw);
9218 }
9219 }
9220
ath10k_mac_parse_bitrate(struct ath10k * ar,u32 rate_code,u32 bitrate_kbps,struct rate_info * rate)9221 static void ath10k_mac_parse_bitrate(struct ath10k *ar, u32 rate_code,
9222 u32 bitrate_kbps, struct rate_info *rate)
9223 {
9224 enum ath10k_phy_mode mode = ATH10K_PHY_MODE_LEGACY;
9225 enum wmi_rate_preamble preamble = WMI_TLV_GET_HW_RC_PREAM_V1(rate_code);
9226 u8 nss = WMI_TLV_GET_HW_RC_NSS_V1(rate_code) + 1;
9227 u8 mcs = WMI_TLV_GET_HW_RC_RATE_V1(rate_code);
9228 u8 flags = 0, bw = 0;
9229
9230 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac parse rate code 0x%x bitrate %d kbps\n",
9231 rate_code, bitrate_kbps);
9232
9233 if (preamble == WMI_RATE_PREAMBLE_HT)
9234 mode = ATH10K_PHY_MODE_HT;
9235 else if (preamble == WMI_RATE_PREAMBLE_VHT)
9236 mode = ATH10K_PHY_MODE_VHT;
9237
9238 ath10k_mac_get_rate_flags(ar, bitrate_kbps / 100, mode, nss, mcs, &flags, &bw);
9239
9240 ath10k_dbg(ar, ATH10K_DBG_MAC,
9241 "mac parse bitrate preamble %d mode %d nss %d mcs %d flags %x bw %d\n",
9242 preamble, mode, nss, mcs, flags, bw);
9243
9244 rate->flags = flags;
9245 rate->bw = bw;
9246 rate->legacy = bitrate_kbps / 100;
9247 rate->nss = nss;
9248 rate->mcs = mcs;
9249 }
9250
ath10k_mac_sta_get_peer_stats_info(struct ath10k * ar,struct ieee80211_sta * sta,struct station_info * sinfo)9251 static void ath10k_mac_sta_get_peer_stats_info(struct ath10k *ar,
9252 struct ieee80211_sta *sta,
9253 struct station_info *sinfo)
9254 {
9255 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
9256 struct ath10k_peer *peer;
9257 unsigned long time_left;
9258 int ret;
9259
9260 if (!(ar->hw_params.supports_peer_stats_info &&
9261 arsta->arvif->vdev_type == WMI_VDEV_TYPE_STA))
9262 return;
9263
9264 spin_lock_bh(&ar->data_lock);
9265 peer = ath10k_peer_find(ar, arsta->arvif->vdev_id, sta->addr);
9266 spin_unlock_bh(&ar->data_lock);
9267 if (!peer)
9268 return;
9269
9270 reinit_completion(&ar->peer_stats_info_complete);
9271
9272 ret = ath10k_wmi_request_peer_stats_info(ar,
9273 arsta->arvif->vdev_id,
9274 WMI_REQUEST_ONE_PEER_STATS_INFO,
9275 arsta->arvif->bssid,
9276 0);
9277 if (ret && ret != -EOPNOTSUPP) {
9278 ath10k_warn(ar, "could not request peer stats info: %d\n", ret);
9279 return;
9280 }
9281
9282 time_left = wait_for_completion_timeout(&ar->peer_stats_info_complete, 3 * HZ);
9283 if (time_left == 0) {
9284 ath10k_warn(ar, "timed out waiting peer stats info\n");
9285 return;
9286 }
9287
9288 if (arsta->rx_rate_code != 0 && arsta->rx_bitrate_kbps != 0) {
9289 ath10k_mac_parse_bitrate(ar, arsta->rx_rate_code,
9290 arsta->rx_bitrate_kbps,
9291 &sinfo->rxrate);
9292
9293 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE);
9294 arsta->rx_rate_code = 0;
9295 arsta->rx_bitrate_kbps = 0;
9296 }
9297
9298 if (arsta->tx_rate_code != 0 && arsta->tx_bitrate_kbps != 0) {
9299 ath10k_mac_parse_bitrate(ar, arsta->tx_rate_code,
9300 arsta->tx_bitrate_kbps,
9301 &sinfo->txrate);
9302
9303 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
9304 arsta->tx_rate_code = 0;
9305 arsta->tx_bitrate_kbps = 0;
9306 }
9307 }
9308
ath10k_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)9309 static void ath10k_sta_statistics(struct ieee80211_hw *hw,
9310 struct ieee80211_vif *vif,
9311 struct ieee80211_sta *sta,
9312 struct station_info *sinfo)
9313 {
9314 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
9315 struct ath10k *ar = arsta->arvif->ar;
9316
9317 if (!ath10k_peer_stats_enabled(ar))
9318 return;
9319
9320 mutex_lock(&ar->conf_mutex);
9321 ath10k_debug_fw_stats_request(ar);
9322 mutex_unlock(&ar->conf_mutex);
9323
9324 sinfo->rx_duration = arsta->rx_duration;
9325 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_DURATION);
9326
9327 if (arsta->txrate.legacy || arsta->txrate.nss) {
9328 if (arsta->txrate.legacy) {
9329 sinfo->txrate.legacy = arsta->txrate.legacy;
9330 } else {
9331 sinfo->txrate.mcs = arsta->txrate.mcs;
9332 sinfo->txrate.nss = arsta->txrate.nss;
9333 sinfo->txrate.bw = arsta->txrate.bw;
9334 }
9335 sinfo->txrate.flags = arsta->txrate.flags;
9336 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
9337 }
9338
9339 if (ar->htt.disable_tx_comp) {
9340 sinfo->tx_failed = arsta->tx_failed;
9341 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
9342 }
9343
9344 sinfo->tx_retries = arsta->tx_retries;
9345 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
9346
9347 ath10k_mac_sta_get_peer_stats_info(ar, sta, sinfo);
9348 }
9349
ath10k_mac_op_set_tid_config(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct cfg80211_tid_config * tid_config)9350 static int ath10k_mac_op_set_tid_config(struct ieee80211_hw *hw,
9351 struct ieee80211_vif *vif,
9352 struct ieee80211_sta *sta,
9353 struct cfg80211_tid_config *tid_config)
9354 {
9355 struct ath10k *ar = hw->priv;
9356 struct ath10k_vif *arvif = (void *)vif->drv_priv;
9357 struct ath10k_mac_iter_tid_conf_data data = {};
9358 struct wmi_per_peer_per_tid_cfg_arg arg = {};
9359 int ret, i;
9360
9361 mutex_lock(&ar->conf_mutex);
9362 arg.vdev_id = arvif->vdev_id;
9363
9364 arvif->tids_rst = 0;
9365 memset(arvif->tid_conf_changed, 0, sizeof(arvif->tid_conf_changed));
9366
9367 for (i = 0; i < tid_config->n_tid_conf; i++) {
9368 ret = ath10k_mac_parse_tid_config(ar, sta, vif,
9369 &tid_config->tid_conf[i],
9370 &arg);
9371 if (ret)
9372 goto exit;
9373 }
9374
9375 ret = 0;
9376
9377 if (sta)
9378 goto exit;
9379
9380 arvif->tids_rst = 0;
9381 data.curr_vif = vif;
9382 data.ar = ar;
9383
9384 ieee80211_iterate_stations_atomic(hw, ath10k_mac_vif_stations_tid_conf,
9385 &data);
9386
9387 exit:
9388 mutex_unlock(&ar->conf_mutex);
9389 return ret;
9390 }
9391
ath10k_mac_op_reset_tid_config(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u8 tids)9392 static int ath10k_mac_op_reset_tid_config(struct ieee80211_hw *hw,
9393 struct ieee80211_vif *vif,
9394 struct ieee80211_sta *sta,
9395 u8 tids)
9396 {
9397 struct ath10k_vif *arvif = (void *)vif->drv_priv;
9398 struct ath10k_mac_iter_tid_conf_data data = {};
9399 struct ath10k *ar = hw->priv;
9400 int ret = 0;
9401
9402 mutex_lock(&ar->conf_mutex);
9403
9404 if (sta) {
9405 arvif->tids_rst = 0;
9406 ret = ath10k_mac_reset_tid_config(ar, sta, arvif, tids);
9407 goto exit;
9408 }
9409
9410 arvif->tids_rst = tids;
9411 data.curr_vif = vif;
9412 data.ar = ar;
9413 ieee80211_iterate_stations_atomic(hw, ath10k_mac_vif_stations_tid_conf,
9414 &data);
9415
9416 exit:
9417 mutex_unlock(&ar->conf_mutex);
9418 return ret;
9419 }
9420
9421 static const struct ieee80211_ops ath10k_ops = {
9422 .tx = ath10k_mac_op_tx,
9423 .wake_tx_queue = ath10k_mac_op_wake_tx_queue,
9424 .start = ath10k_start,
9425 .stop = ath10k_stop,
9426 .config = ath10k_config,
9427 .add_interface = ath10k_add_interface,
9428 .update_vif_offload = ath10k_update_vif_offload,
9429 .remove_interface = ath10k_remove_interface,
9430 .configure_filter = ath10k_configure_filter,
9431 .bss_info_changed = ath10k_bss_info_changed,
9432 .set_coverage_class = ath10k_mac_op_set_coverage_class,
9433 .hw_scan = ath10k_hw_scan,
9434 .cancel_hw_scan = ath10k_cancel_hw_scan,
9435 .set_key = ath10k_set_key,
9436 .set_default_unicast_key = ath10k_set_default_unicast_key,
9437 .sta_state = ath10k_sta_state,
9438 .sta_set_txpwr = ath10k_sta_set_txpwr,
9439 .conf_tx = ath10k_conf_tx,
9440 .remain_on_channel = ath10k_remain_on_channel,
9441 .cancel_remain_on_channel = ath10k_cancel_remain_on_channel,
9442 .set_rts_threshold = ath10k_set_rts_threshold,
9443 .set_frag_threshold = ath10k_mac_op_set_frag_threshold,
9444 .flush = ath10k_flush,
9445 .tx_last_beacon = ath10k_tx_last_beacon,
9446 .set_antenna = ath10k_set_antenna,
9447 .get_antenna = ath10k_get_antenna,
9448 .reconfig_complete = ath10k_reconfig_complete,
9449 .get_survey = ath10k_get_survey,
9450 .set_bitrate_mask = ath10k_mac_op_set_bitrate_mask,
9451 .sta_rc_update = ath10k_sta_rc_update,
9452 .offset_tsf = ath10k_offset_tsf,
9453 .ampdu_action = ath10k_ampdu_action,
9454 .get_et_sset_count = ath10k_debug_get_et_sset_count,
9455 .get_et_stats = ath10k_debug_get_et_stats,
9456 .get_et_strings = ath10k_debug_get_et_strings,
9457 .add_chanctx = ath10k_mac_op_add_chanctx,
9458 .remove_chanctx = ath10k_mac_op_remove_chanctx,
9459 .change_chanctx = ath10k_mac_op_change_chanctx,
9460 .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
9461 .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
9462 .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
9463 .sta_pre_rcu_remove = ath10k_mac_op_sta_pre_rcu_remove,
9464 .sta_statistics = ath10k_sta_statistics,
9465 .set_tid_config = ath10k_mac_op_set_tid_config,
9466 .reset_tid_config = ath10k_mac_op_reset_tid_config,
9467
9468 CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
9469
9470 #ifdef CONFIG_PM
9471 .suspend = ath10k_wow_op_suspend,
9472 .resume = ath10k_wow_op_resume,
9473 .set_wakeup = ath10k_wow_op_set_wakeup,
9474 #endif
9475 #ifdef CONFIG_MAC80211_DEBUGFS
9476 .sta_add_debugfs = ath10k_sta_add_debugfs,
9477 #endif
9478 .set_sar_specs = ath10k_mac_set_sar_specs,
9479 };
9480
9481 #define CHAN2G(_channel, _freq, _flags) { \
9482 .band = NL80211_BAND_2GHZ, \
9483 .hw_value = (_channel), \
9484 .center_freq = (_freq), \
9485 .flags = (_flags), \
9486 .max_antenna_gain = 0, \
9487 .max_power = 30, \
9488 }
9489
9490 #define CHAN5G(_channel, _freq, _flags) { \
9491 .band = NL80211_BAND_5GHZ, \
9492 .hw_value = (_channel), \
9493 .center_freq = (_freq), \
9494 .flags = (_flags), \
9495 .max_antenna_gain = 0, \
9496 .max_power = 30, \
9497 }
9498
9499 static const struct ieee80211_channel ath10k_2ghz_channels[] = {
9500 CHAN2G(1, 2412, 0),
9501 CHAN2G(2, 2417, 0),
9502 CHAN2G(3, 2422, 0),
9503 CHAN2G(4, 2427, 0),
9504 CHAN2G(5, 2432, 0),
9505 CHAN2G(6, 2437, 0),
9506 CHAN2G(7, 2442, 0),
9507 CHAN2G(8, 2447, 0),
9508 CHAN2G(9, 2452, 0),
9509 CHAN2G(10, 2457, 0),
9510 CHAN2G(11, 2462, 0),
9511 CHAN2G(12, 2467, 0),
9512 CHAN2G(13, 2472, 0),
9513 CHAN2G(14, 2484, 0),
9514 };
9515
9516 static const struct ieee80211_channel ath10k_5ghz_channels[] = {
9517 CHAN5G(36, 5180, 0),
9518 CHAN5G(40, 5200, 0),
9519 CHAN5G(44, 5220, 0),
9520 CHAN5G(48, 5240, 0),
9521 CHAN5G(52, 5260, 0),
9522 CHAN5G(56, 5280, 0),
9523 CHAN5G(60, 5300, 0),
9524 CHAN5G(64, 5320, 0),
9525 CHAN5G(100, 5500, 0),
9526 CHAN5G(104, 5520, 0),
9527 CHAN5G(108, 5540, 0),
9528 CHAN5G(112, 5560, 0),
9529 CHAN5G(116, 5580, 0),
9530 CHAN5G(120, 5600, 0),
9531 CHAN5G(124, 5620, 0),
9532 CHAN5G(128, 5640, 0),
9533 CHAN5G(132, 5660, 0),
9534 CHAN5G(136, 5680, 0),
9535 CHAN5G(140, 5700, 0),
9536 CHAN5G(144, 5720, 0),
9537 CHAN5G(149, 5745, 0),
9538 CHAN5G(153, 5765, 0),
9539 CHAN5G(157, 5785, 0),
9540 CHAN5G(161, 5805, 0),
9541 CHAN5G(165, 5825, 0),
9542 CHAN5G(169, 5845, 0),
9543 CHAN5G(173, 5865, 0),
9544 /* If you add more, you may need to change ATH10K_MAX_5G_CHAN */
9545 /* And you will definitely need to change ATH10K_NUM_CHANS in core.h */
9546 };
9547
ath10k_mac_create(size_t priv_size)9548 struct ath10k *ath10k_mac_create(size_t priv_size)
9549 {
9550 struct ieee80211_hw *hw;
9551 struct ieee80211_ops *ops;
9552 struct ath10k *ar;
9553
9554 ops = kmemdup(&ath10k_ops, sizeof(ath10k_ops), GFP_KERNEL);
9555 if (!ops)
9556 return NULL;
9557
9558 hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, ops);
9559 if (!hw) {
9560 kfree(ops);
9561 return NULL;
9562 }
9563
9564 ar = hw->priv;
9565 ar->hw = hw;
9566 ar->ops = ops;
9567
9568 return ar;
9569 }
9570
ath10k_mac_destroy(struct ath10k * ar)9571 void ath10k_mac_destroy(struct ath10k *ar)
9572 {
9573 struct ieee80211_ops *ops = ar->ops;
9574
9575 ieee80211_free_hw(ar->hw);
9576 kfree(ops);
9577 }
9578
9579 static const struct ieee80211_iface_limit ath10k_if_limits[] = {
9580 {
9581 .max = 8,
9582 .types = BIT(NL80211_IFTYPE_STATION)
9583 | BIT(NL80211_IFTYPE_P2P_CLIENT)
9584 },
9585 {
9586 .max = 3,
9587 .types = BIT(NL80211_IFTYPE_P2P_GO)
9588 },
9589 {
9590 .max = 1,
9591 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
9592 },
9593 {
9594 .max = 7,
9595 .types = BIT(NL80211_IFTYPE_AP)
9596 #ifdef CONFIG_MAC80211_MESH
9597 | BIT(NL80211_IFTYPE_MESH_POINT)
9598 #endif
9599 },
9600 };
9601
9602 static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
9603 {
9604 .max = 8,
9605 .types = BIT(NL80211_IFTYPE_AP)
9606 #ifdef CONFIG_MAC80211_MESH
9607 | BIT(NL80211_IFTYPE_MESH_POINT)
9608 #endif
9609 },
9610 {
9611 .max = 1,
9612 .types = BIT(NL80211_IFTYPE_STATION)
9613 },
9614 };
9615
9616 static const struct ieee80211_iface_combination ath10k_if_comb[] = {
9617 {
9618 .limits = ath10k_if_limits,
9619 .n_limits = ARRAY_SIZE(ath10k_if_limits),
9620 .max_interfaces = 8,
9621 .num_different_channels = 1,
9622 .beacon_int_infra_match = true,
9623 },
9624 };
9625
9626 static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
9627 {
9628 .limits = ath10k_10x_if_limits,
9629 .n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
9630 .max_interfaces = 8,
9631 .num_different_channels = 1,
9632 .beacon_int_infra_match = true,
9633 .beacon_int_min_gcd = 1,
9634 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
9635 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
9636 BIT(NL80211_CHAN_WIDTH_20) |
9637 BIT(NL80211_CHAN_WIDTH_40) |
9638 BIT(NL80211_CHAN_WIDTH_80),
9639 #endif
9640 },
9641 };
9642
9643 static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
9644 {
9645 .max = 2,
9646 .types = BIT(NL80211_IFTYPE_STATION),
9647 },
9648 {
9649 .max = 2,
9650 .types = BIT(NL80211_IFTYPE_AP) |
9651 #ifdef CONFIG_MAC80211_MESH
9652 BIT(NL80211_IFTYPE_MESH_POINT) |
9653 #endif
9654 BIT(NL80211_IFTYPE_P2P_CLIENT) |
9655 BIT(NL80211_IFTYPE_P2P_GO),
9656 },
9657 {
9658 .max = 1,
9659 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
9660 },
9661 };
9662
9663 static const struct ieee80211_iface_limit ath10k_tlv_qcs_if_limit[] = {
9664 {
9665 .max = 2,
9666 .types = BIT(NL80211_IFTYPE_STATION),
9667 },
9668 {
9669 .max = 2,
9670 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
9671 },
9672 {
9673 .max = 1,
9674 .types = BIT(NL80211_IFTYPE_AP) |
9675 #ifdef CONFIG_MAC80211_MESH
9676 BIT(NL80211_IFTYPE_MESH_POINT) |
9677 #endif
9678 BIT(NL80211_IFTYPE_P2P_GO),
9679 },
9680 {
9681 .max = 1,
9682 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
9683 },
9684 };
9685
9686 static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
9687 {
9688 .max = 1,
9689 .types = BIT(NL80211_IFTYPE_STATION),
9690 },
9691 {
9692 .max = 1,
9693 .types = BIT(NL80211_IFTYPE_ADHOC),
9694 },
9695 };
9696
9697 /* FIXME: This is not thoroughly tested. These combinations may over- or
9698 * underestimate hw/fw capabilities.
9699 */
9700 static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
9701 {
9702 .limits = ath10k_tlv_if_limit,
9703 .num_different_channels = 1,
9704 .max_interfaces = 4,
9705 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
9706 },
9707 {
9708 .limits = ath10k_tlv_if_limit_ibss,
9709 .num_different_channels = 1,
9710 .max_interfaces = 2,
9711 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
9712 },
9713 };
9714
9715 static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
9716 {
9717 .limits = ath10k_tlv_if_limit,
9718 .num_different_channels = 1,
9719 .max_interfaces = 4,
9720 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
9721 },
9722 {
9723 .limits = ath10k_tlv_qcs_if_limit,
9724 .num_different_channels = 2,
9725 .max_interfaces = 4,
9726 .n_limits = ARRAY_SIZE(ath10k_tlv_qcs_if_limit),
9727 },
9728 {
9729 .limits = ath10k_tlv_if_limit_ibss,
9730 .num_different_channels = 1,
9731 .max_interfaces = 2,
9732 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
9733 },
9734 };
9735
9736 static const struct ieee80211_iface_limit ath10k_10_4_if_limits[] = {
9737 {
9738 .max = 1,
9739 .types = BIT(NL80211_IFTYPE_STATION),
9740 },
9741 {
9742 .max = 16,
9743 .types = BIT(NL80211_IFTYPE_AP)
9744 #ifdef CONFIG_MAC80211_MESH
9745 | BIT(NL80211_IFTYPE_MESH_POINT)
9746 #endif
9747 },
9748 };
9749
9750 static const struct ieee80211_iface_combination ath10k_10_4_if_comb[] = {
9751 {
9752 .limits = ath10k_10_4_if_limits,
9753 .n_limits = ARRAY_SIZE(ath10k_10_4_if_limits),
9754 .max_interfaces = 16,
9755 .num_different_channels = 1,
9756 .beacon_int_infra_match = true,
9757 .beacon_int_min_gcd = 1,
9758 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
9759 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
9760 BIT(NL80211_CHAN_WIDTH_20) |
9761 BIT(NL80211_CHAN_WIDTH_40) |
9762 BIT(NL80211_CHAN_WIDTH_80) |
9763 BIT(NL80211_CHAN_WIDTH_80P80) |
9764 BIT(NL80211_CHAN_WIDTH_160),
9765 #endif
9766 },
9767 };
9768
9769 static const struct
9770 ieee80211_iface_combination ath10k_10_4_bcn_int_if_comb[] = {
9771 {
9772 .limits = ath10k_10_4_if_limits,
9773 .n_limits = ARRAY_SIZE(ath10k_10_4_if_limits),
9774 .max_interfaces = 16,
9775 .num_different_channels = 1,
9776 .beacon_int_infra_match = true,
9777 .beacon_int_min_gcd = 100,
9778 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
9779 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
9780 BIT(NL80211_CHAN_WIDTH_20) |
9781 BIT(NL80211_CHAN_WIDTH_40) |
9782 BIT(NL80211_CHAN_WIDTH_80) |
9783 BIT(NL80211_CHAN_WIDTH_80P80) |
9784 BIT(NL80211_CHAN_WIDTH_160),
9785 #endif
9786 },
9787 };
9788
ath10k_get_arvif_iter(void * data,u8 * mac,struct ieee80211_vif * vif)9789 static void ath10k_get_arvif_iter(void *data, u8 *mac,
9790 struct ieee80211_vif *vif)
9791 {
9792 struct ath10k_vif_iter *arvif_iter = data;
9793 struct ath10k_vif *arvif = (void *)vif->drv_priv;
9794
9795 if (arvif->vdev_id == arvif_iter->vdev_id)
9796 arvif_iter->arvif = arvif;
9797 }
9798
ath10k_get_arvif(struct ath10k * ar,u32 vdev_id)9799 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
9800 {
9801 struct ath10k_vif_iter arvif_iter;
9802
9803 memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
9804 arvif_iter.vdev_id = vdev_id;
9805
9806 ieee80211_iterate_active_interfaces_atomic(ar->hw,
9807 ATH10K_ITER_RESUME_FLAGS,
9808 ath10k_get_arvif_iter,
9809 &arvif_iter);
9810 if (!arvif_iter.arvif) {
9811 ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
9812 return NULL;
9813 }
9814
9815 return arvif_iter.arvif;
9816 }
9817
9818 #define WRD_METHOD "WRDD"
9819 #define WRDD_WIFI (0x07)
9820
ath10k_mac_wrdd_get_mcc(struct ath10k * ar,union acpi_object * wrdd)9821 static u32 ath10k_mac_wrdd_get_mcc(struct ath10k *ar, union acpi_object *wrdd)
9822 {
9823 union acpi_object *mcc_pkg;
9824 union acpi_object *domain_type;
9825 union acpi_object *mcc_value;
9826 u32 i;
9827
9828 if (wrdd->type != ACPI_TYPE_PACKAGE ||
9829 wrdd->package.count < 2 ||
9830 wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
9831 wrdd->package.elements[0].integer.value != 0) {
9832 ath10k_warn(ar, "ignoring malformed/unsupported wrdd structure\n");
9833 return 0;
9834 }
9835
9836 for (i = 1; i < wrdd->package.count; ++i) {
9837 mcc_pkg = &wrdd->package.elements[i];
9838
9839 if (mcc_pkg->type != ACPI_TYPE_PACKAGE)
9840 continue;
9841 if (mcc_pkg->package.count < 2)
9842 continue;
9843 if (mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
9844 mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
9845 continue;
9846
9847 domain_type = &mcc_pkg->package.elements[0];
9848 if (domain_type->integer.value != WRDD_WIFI)
9849 continue;
9850
9851 mcc_value = &mcc_pkg->package.elements[1];
9852 return mcc_value->integer.value;
9853 }
9854 return 0;
9855 }
9856
ath10k_mac_get_wrdd_regulatory(struct ath10k * ar,u16 * rd)9857 static int ath10k_mac_get_wrdd_regulatory(struct ath10k *ar, u16 *rd)
9858 {
9859 acpi_handle root_handle;
9860 acpi_handle handle;
9861 struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
9862 acpi_status status;
9863 u32 alpha2_code;
9864 char alpha2[3];
9865
9866 root_handle = ACPI_HANDLE(ar->dev);
9867 if (!root_handle)
9868 return -EOPNOTSUPP;
9869
9870 status = acpi_get_handle(root_handle, (acpi_string)WRD_METHOD, &handle);
9871 if (ACPI_FAILURE(status)) {
9872 ath10k_dbg(ar, ATH10K_DBG_BOOT,
9873 "failed to get wrd method %d\n", status);
9874 return -EIO;
9875 }
9876
9877 status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
9878 if (ACPI_FAILURE(status)) {
9879 ath10k_dbg(ar, ATH10K_DBG_BOOT,
9880 "failed to call wrdc %d\n", status);
9881 return -EIO;
9882 }
9883
9884 alpha2_code = ath10k_mac_wrdd_get_mcc(ar, wrdd.pointer);
9885 kfree(wrdd.pointer);
9886 if (!alpha2_code)
9887 return -EIO;
9888
9889 alpha2[0] = (alpha2_code >> 8) & 0xff;
9890 alpha2[1] = (alpha2_code >> 0) & 0xff;
9891 alpha2[2] = '\0';
9892
9893 ath10k_dbg(ar, ATH10K_DBG_BOOT,
9894 "regulatory hint from WRDD (alpha2-code): %s\n", alpha2);
9895
9896 *rd = ath_regd_find_country_by_name(alpha2);
9897 if (*rd == 0xffff)
9898 return -EIO;
9899
9900 *rd |= COUNTRY_ERD_FLAG;
9901 return 0;
9902 }
9903
ath10k_mac_init_rd(struct ath10k * ar)9904 static int ath10k_mac_init_rd(struct ath10k *ar)
9905 {
9906 int ret;
9907 u16 rd;
9908
9909 ret = ath10k_mac_get_wrdd_regulatory(ar, &rd);
9910 if (ret) {
9911 ath10k_dbg(ar, ATH10K_DBG_BOOT,
9912 "fallback to eeprom programmed regulatory settings\n");
9913 rd = ar->hw_eeprom_rd;
9914 }
9915
9916 ar->ath_common.regulatory.current_rd = rd;
9917 return 0;
9918 }
9919
ath10k_mac_register(struct ath10k * ar)9920 int ath10k_mac_register(struct ath10k *ar)
9921 {
9922 static const u32 cipher_suites[] = {
9923 WLAN_CIPHER_SUITE_WEP40,
9924 WLAN_CIPHER_SUITE_WEP104,
9925 WLAN_CIPHER_SUITE_TKIP,
9926 WLAN_CIPHER_SUITE_CCMP,
9927
9928 /* Do not add hardware supported ciphers before this line.
9929 * Allow software encryption for all chips. Don't forget to
9930 * update n_cipher_suites below.
9931 */
9932 WLAN_CIPHER_SUITE_AES_CMAC,
9933 WLAN_CIPHER_SUITE_BIP_CMAC_256,
9934 WLAN_CIPHER_SUITE_BIP_GMAC_128,
9935 WLAN_CIPHER_SUITE_BIP_GMAC_256,
9936
9937 /* Only QCA99x0 and QCA4019 variants support GCMP-128, GCMP-256
9938 * and CCMP-256 in hardware.
9939 */
9940 WLAN_CIPHER_SUITE_GCMP,
9941 WLAN_CIPHER_SUITE_GCMP_256,
9942 WLAN_CIPHER_SUITE_CCMP_256,
9943 };
9944 struct ieee80211_supported_band *band;
9945 void *channels;
9946 int ret;
9947
9948 if (!is_valid_ether_addr(ar->mac_addr)) {
9949 ath10k_warn(ar, "invalid MAC address; choosing random\n");
9950 eth_random_addr(ar->mac_addr);
9951 }
9952 SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
9953
9954 SET_IEEE80211_DEV(ar->hw, ar->dev);
9955
9956 BUILD_BUG_ON((ARRAY_SIZE(ath10k_2ghz_channels) +
9957 ARRAY_SIZE(ath10k_5ghz_channels)) !=
9958 ATH10K_NUM_CHANS);
9959
9960 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
9961 channels = kmemdup(ath10k_2ghz_channels,
9962 sizeof(ath10k_2ghz_channels),
9963 GFP_KERNEL);
9964 if (!channels) {
9965 ret = -ENOMEM;
9966 goto err_free;
9967 }
9968
9969 band = &ar->mac.sbands[NL80211_BAND_2GHZ];
9970 band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
9971 band->channels = channels;
9972
9973 if (ar->hw_params.cck_rate_map_rev2) {
9974 band->n_bitrates = ath10k_g_rates_rev2_size;
9975 band->bitrates = ath10k_g_rates_rev2;
9976 } else {
9977 band->n_bitrates = ath10k_g_rates_size;
9978 band->bitrates = ath10k_g_rates;
9979 }
9980
9981 ar->hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
9982 }
9983
9984 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
9985 channels = kmemdup(ath10k_5ghz_channels,
9986 sizeof(ath10k_5ghz_channels),
9987 GFP_KERNEL);
9988 if (!channels) {
9989 ret = -ENOMEM;
9990 goto err_free;
9991 }
9992
9993 band = &ar->mac.sbands[NL80211_BAND_5GHZ];
9994 band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
9995 band->channels = channels;
9996 band->n_bitrates = ath10k_a_rates_size;
9997 band->bitrates = ath10k_a_rates;
9998 ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
9999 }
10000
10001 wiphy_read_of_freq_limits(ar->hw->wiphy);
10002 ath10k_mac_setup_ht_vht_cap(ar);
10003
10004 ar->hw->wiphy->interface_modes =
10005 BIT(NL80211_IFTYPE_STATION) |
10006 BIT(NL80211_IFTYPE_AP) |
10007 BIT(NL80211_IFTYPE_MESH_POINT);
10008
10009 ar->hw->wiphy->available_antennas_rx = ar->cfg_rx_chainmask;
10010 ar->hw->wiphy->available_antennas_tx = ar->cfg_tx_chainmask;
10011
10012 if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->normal_mode_fw.fw_file.fw_features))
10013 ar->hw->wiphy->interface_modes |=
10014 BIT(NL80211_IFTYPE_P2P_DEVICE) |
10015 BIT(NL80211_IFTYPE_P2P_CLIENT) |
10016 BIT(NL80211_IFTYPE_P2P_GO);
10017
10018 ieee80211_hw_set(ar->hw, SIGNAL_DBM);
10019
10020 if (!test_bit(ATH10K_FW_FEATURE_NO_PS,
10021 ar->running_fw->fw_file.fw_features)) {
10022 ieee80211_hw_set(ar->hw, SUPPORTS_PS);
10023 ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS);
10024 }
10025
10026 ieee80211_hw_set(ar->hw, MFP_CAPABLE);
10027 ieee80211_hw_set(ar->hw, REPORTS_TX_ACK_STATUS);
10028 ieee80211_hw_set(ar->hw, HAS_RATE_CONTROL);
10029 ieee80211_hw_set(ar->hw, AP_LINK_PS);
10030 ieee80211_hw_set(ar->hw, SPECTRUM_MGMT);
10031 ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT);
10032 ieee80211_hw_set(ar->hw, CONNECTION_MONITOR);
10033 ieee80211_hw_set(ar->hw, SUPPORTS_PER_STA_GTK);
10034 ieee80211_hw_set(ar->hw, WANT_MONITOR_VIF);
10035 ieee80211_hw_set(ar->hw, CHANCTX_STA_CSA);
10036 ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
10037 ieee80211_hw_set(ar->hw, SUPPORTS_TX_FRAG);
10038 ieee80211_hw_set(ar->hw, REPORTS_LOW_ACK);
10039
10040 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
10041 ieee80211_hw_set(ar->hw, SW_CRYPTO_CONTROL);
10042
10043 ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
10044 ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
10045
10046 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
10047 ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
10048
10049 if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
10050 ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
10051 ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
10052 }
10053
10054 ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
10055 ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
10056
10057 if (test_bit(WMI_SERVICE_NLO, ar->wmi.svc_map)) {
10058 ar->hw->wiphy->max_sched_scan_ssids = WMI_PNO_MAX_SUPP_NETWORKS;
10059 ar->hw->wiphy->max_match_sets = WMI_PNO_MAX_SUPP_NETWORKS;
10060 ar->hw->wiphy->max_sched_scan_ie_len = WMI_PNO_MAX_IE_LENGTH;
10061 ar->hw->wiphy->max_sched_scan_plans = WMI_PNO_MAX_SCHED_SCAN_PLANS;
10062 ar->hw->wiphy->max_sched_scan_plan_interval =
10063 WMI_PNO_MAX_SCHED_SCAN_PLAN_INT;
10064 ar->hw->wiphy->max_sched_scan_plan_iterations =
10065 WMI_PNO_MAX_SCHED_SCAN_PLAN_ITRNS;
10066 ar->hw->wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
10067 }
10068
10069 ar->hw->vif_data_size = sizeof(struct ath10k_vif);
10070 ar->hw->sta_data_size = sizeof(struct ath10k_sta);
10071 ar->hw->txq_data_size = sizeof(struct ath10k_txq);
10072
10073 ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
10074
10075 if (test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)) {
10076 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
10077
10078 /* Firmware delivers WPS/P2P Probe Requests frames to driver so
10079 * that userspace (e.g. wpa_supplicant/hostapd) can generate
10080 * correct Probe Responses. This is more of a hack advert..
10081 */
10082 ar->hw->wiphy->probe_resp_offload |=
10083 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
10084 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
10085 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
10086 }
10087
10088 if (test_bit(WMI_SERVICE_TDLS, ar->wmi.svc_map) ||
10089 test_bit(WMI_SERVICE_TDLS_EXPLICIT_MODE_ONLY, ar->wmi.svc_map)) {
10090 ar->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
10091 if (test_bit(WMI_SERVICE_TDLS_WIDER_BANDWIDTH, ar->wmi.svc_map))
10092 ieee80211_hw_set(ar->hw, TDLS_WIDER_BW);
10093 }
10094
10095 if (test_bit(WMI_SERVICE_TDLS_UAPSD_BUFFER_STA, ar->wmi.svc_map))
10096 ieee80211_hw_set(ar->hw, SUPPORTS_TDLS_BUFFER_STA);
10097
10098 if (ath10k_frame_mode == ATH10K_HW_TXRX_ETHERNET) {
10099 if (ar->wmi.vdev_param->tx_encap_type !=
10100 WMI_VDEV_PARAM_UNSUPPORTED)
10101 ieee80211_hw_set(ar->hw, SUPPORTS_TX_ENCAP_OFFLOAD);
10102 }
10103
10104 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
10105 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
10106 ar->hw->wiphy->max_remain_on_channel_duration = 5000;
10107
10108 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
10109 ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
10110 NL80211_FEATURE_AP_SCAN;
10111
10112 ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;
10113
10114 ret = ath10k_wow_init(ar);
10115 if (ret) {
10116 ath10k_warn(ar, "failed to init wow: %d\n", ret);
10117 goto err_free;
10118 }
10119
10120 wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
10121 wiphy_ext_feature_set(ar->hw->wiphy,
10122 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
10123 wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_AQL);
10124
10125 if (test_bit(WMI_SERVICE_TX_DATA_ACK_RSSI, ar->wmi.svc_map) ||
10126 test_bit(WMI_SERVICE_HTT_MGMT_TX_COMP_VALID_FLAGS, ar->wmi.svc_map))
10127 wiphy_ext_feature_set(ar->hw->wiphy,
10128 NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT);
10129
10130 if (ath10k_peer_stats_enabled(ar) ||
10131 test_bit(WMI_SERVICE_REPORT_AIRTIME, ar->wmi.svc_map))
10132 wiphy_ext_feature_set(ar->hw->wiphy,
10133 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS);
10134
10135 if (test_bit(WMI_SERVICE_RTT_RESPONDER_ROLE, ar->wmi.svc_map))
10136 wiphy_ext_feature_set(ar->hw->wiphy,
10137 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
10138
10139 if (test_bit(WMI_SERVICE_TX_PWR_PER_PEER, ar->wmi.svc_map))
10140 wiphy_ext_feature_set(ar->hw->wiphy,
10141 NL80211_EXT_FEATURE_STA_TX_PWR);
10142
10143 if (test_bit(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, ar->wmi.svc_map)) {
10144 ar->hw->wiphy->tid_config_support.vif |=
10145 BIT(NL80211_TID_CONFIG_ATTR_NOACK) |
10146 BIT(NL80211_TID_CONFIG_ATTR_RETRY_SHORT) |
10147 BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG) |
10148 BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL) |
10149 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE) |
10150 BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE);
10151
10152 if (test_bit(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,
10153 ar->wmi.svc_map)) {
10154 ar->hw->wiphy->tid_config_support.vif |=
10155 BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL);
10156 }
10157
10158 ar->hw->wiphy->tid_config_support.peer =
10159 ar->hw->wiphy->tid_config_support.vif;
10160 ar->hw->wiphy->max_data_retry_count = ATH10K_MAX_RETRY_COUNT;
10161 } else {
10162 ar->ops->set_tid_config = NULL;
10163 }
10164 /*
10165 * on LL hardware queues are managed entirely by the FW
10166 * so we only advertise to mac we can do the queues thing
10167 */
10168 ar->hw->queues = IEEE80211_MAX_QUEUES;
10169
10170 /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
10171 * something that vdev_ids can't reach so that we don't stop the queue
10172 * accidentally.
10173 */
10174 ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
10175
10176 switch (ar->running_fw->fw_file.wmi_op_version) {
10177 case ATH10K_FW_WMI_OP_VERSION_MAIN:
10178 ar->hw->wiphy->iface_combinations = ath10k_if_comb;
10179 ar->hw->wiphy->n_iface_combinations =
10180 ARRAY_SIZE(ath10k_if_comb);
10181 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
10182 break;
10183 case ATH10K_FW_WMI_OP_VERSION_TLV:
10184 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
10185 ar->hw->wiphy->iface_combinations =
10186 ath10k_tlv_qcs_if_comb;
10187 ar->hw->wiphy->n_iface_combinations =
10188 ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
10189 } else {
10190 ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
10191 ar->hw->wiphy->n_iface_combinations =
10192 ARRAY_SIZE(ath10k_tlv_if_comb);
10193 }
10194 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
10195 break;
10196 case ATH10K_FW_WMI_OP_VERSION_10_1:
10197 case ATH10K_FW_WMI_OP_VERSION_10_2:
10198 case ATH10K_FW_WMI_OP_VERSION_10_2_4:
10199 ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
10200 ar->hw->wiphy->n_iface_combinations =
10201 ARRAY_SIZE(ath10k_10x_if_comb);
10202 break;
10203 case ATH10K_FW_WMI_OP_VERSION_10_4:
10204 ar->hw->wiphy->iface_combinations = ath10k_10_4_if_comb;
10205 ar->hw->wiphy->n_iface_combinations =
10206 ARRAY_SIZE(ath10k_10_4_if_comb);
10207 if (test_bit(WMI_SERVICE_VDEV_DIFFERENT_BEACON_INTERVAL_SUPPORT,
10208 ar->wmi.svc_map)) {
10209 ar->hw->wiphy->iface_combinations =
10210 ath10k_10_4_bcn_int_if_comb;
10211 ar->hw->wiphy->n_iface_combinations =
10212 ARRAY_SIZE(ath10k_10_4_bcn_int_if_comb);
10213 }
10214 break;
10215 case ATH10K_FW_WMI_OP_VERSION_UNSET:
10216 case ATH10K_FW_WMI_OP_VERSION_MAX:
10217 WARN_ON(1);
10218 ret = -EINVAL;
10219 goto err_free;
10220 }
10221
10222 if (ar->hw_params.dynamic_sar_support)
10223 ar->hw->wiphy->sar_capa = &ath10k_sar_capa;
10224
10225 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
10226 ar->hw->netdev_features = NETIF_F_HW_CSUM;
10227
10228 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
10229 /* Init ath dfs pattern detector */
10230 ar->ath_common.debug_mask = ATH_DBG_DFS;
10231 ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
10232 NL80211_DFS_UNSET);
10233
10234 if (!ar->dfs_detector)
10235 ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
10236 }
10237
10238 ret = ath10k_mac_init_rd(ar);
10239 if (ret) {
10240 ath10k_err(ar, "failed to derive regdom: %d\n", ret);
10241 goto err_dfs_detector_exit;
10242 }
10243
10244 /* Disable set_coverage_class for chipsets that do not support it. */
10245 if (!ar->hw_params.hw_ops->set_coverage_class)
10246 ar->ops->set_coverage_class = NULL;
10247
10248 ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
10249 ath10k_reg_notifier);
10250 if (ret) {
10251 ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
10252 goto err_dfs_detector_exit;
10253 }
10254
10255 if (test_bit(WMI_SERVICE_SPOOF_MAC_SUPPORT, ar->wmi.svc_map)) {
10256 ar->hw->wiphy->features |=
10257 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
10258 }
10259
10260 ar->hw->wiphy->cipher_suites = cipher_suites;
10261
10262 /* QCA988x and QCA6174 family chips do not support CCMP-256, GCMP-128
10263 * and GCMP-256 ciphers in hardware. Fetch number of ciphers supported
10264 * from chip specific hw_param table.
10265 */
10266 if (!ar->hw_params.n_cipher_suites ||
10267 ar->hw_params.n_cipher_suites > ARRAY_SIZE(cipher_suites)) {
10268 ath10k_err(ar, "invalid hw_params.n_cipher_suites %d\n",
10269 ar->hw_params.n_cipher_suites);
10270 ar->hw_params.n_cipher_suites = 8;
10271 }
10272 ar->hw->wiphy->n_cipher_suites = ar->hw_params.n_cipher_suites;
10273
10274 wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
10275
10276 ar->hw->weight_multiplier = ATH10K_AIRTIME_WEIGHT_MULTIPLIER;
10277
10278 ret = ieee80211_register_hw(ar->hw);
10279 if (ret) {
10280 ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
10281 goto err_dfs_detector_exit;
10282 }
10283
10284 if (test_bit(WMI_SERVICE_PER_PACKET_SW_ENCRYPT, ar->wmi.svc_map)) {
10285 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
10286 ar->hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN);
10287 }
10288
10289 if (!ath_is_world_regd(&ar->ath_common.reg_world_copy) &&
10290 !ath_is_world_regd(&ar->ath_common.regulatory)) {
10291 ret = regulatory_hint(ar->hw->wiphy,
10292 ar->ath_common.regulatory.alpha2);
10293 if (ret)
10294 goto err_unregister;
10295 }
10296
10297 return 0;
10298
10299 err_unregister:
10300 ieee80211_unregister_hw(ar->hw);
10301
10302 err_dfs_detector_exit:
10303 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
10304 ar->dfs_detector->exit(ar->dfs_detector);
10305
10306 err_free:
10307 kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
10308 kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
10309
10310 SET_IEEE80211_DEV(ar->hw, NULL);
10311 return ret;
10312 }
10313
ath10k_mac_unregister(struct ath10k * ar)10314 void ath10k_mac_unregister(struct ath10k *ar)
10315 {
10316 ieee80211_unregister_hw(ar->hw);
10317
10318 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
10319 ar->dfs_detector->exit(ar->dfs_detector);
10320
10321 kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
10322 kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
10323
10324 SET_IEEE80211_DEV(ar->hw, NULL);
10325 }
10326