1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (C) 2022 MediaTek Inc.
4 */
5
6 #include "mt7996.h"
7 #include "mcu.h"
8 #include "mac.h"
9
mt7996_run(struct mt7996_phy * phy)10 int mt7996_run(struct mt7996_phy *phy)
11 {
12 struct mt7996_dev *dev = phy->dev;
13 int ret;
14
15 mt7996_mac_enable_nf(dev, phy->mt76->band_idx);
16
17 ret = mt7996_mcu_set_rts_thresh(phy, 0x92b);
18 if (ret)
19 return ret;
20
21 ret = mt7996_mcu_set_radio_en(phy, true);
22 if (ret)
23 return ret;
24
25 ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_RX_PATH);
26 if (ret)
27 return ret;
28
29 ret = mt7996_mcu_set_thermal_throttling(phy, MT7996_THERMAL_THROTTLE_MAX);
30 if (ret)
31 return ret;
32
33 ret = mt7996_mcu_set_thermal_protect(phy, true);
34 if (ret)
35 return ret;
36
37 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
38
39 ieee80211_queue_delayed_work(dev->mphy.hw, &phy->mt76->mac_work,
40 MT7996_WATCHDOG_TIME);
41
42 if (!phy->counter_reset) {
43 mt7996_mac_reset_counters(phy);
44 phy->counter_reset = true;
45 }
46
47 return 0;
48 }
49
mt7996_start(struct ieee80211_hw * hw)50 static int mt7996_start(struct ieee80211_hw *hw)
51 {
52 struct mt7996_dev *dev = mt7996_hw_dev(hw);
53 int ret;
54
55 flush_work(&dev->init_work);
56
57 mutex_lock(&dev->mt76.mutex);
58 ret = mt7996_mcu_set_hdr_trans(dev, true);
59 if (!ret && is_mt7992(&dev->mt76)) {
60 u8 queue = mt76_connac_lmac_mapping(IEEE80211_AC_VI);
61
62 ret = mt7996_mcu_cp_support(dev, queue);
63 }
64 mutex_unlock(&dev->mt76.mutex);
65
66 return ret;
67 }
68
mt7996_stop_phy(struct mt7996_phy * phy)69 static void mt7996_stop_phy(struct mt7996_phy *phy)
70 {
71 struct mt7996_dev *dev = phy->dev;
72
73 if (!phy || !test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
74 return;
75
76 cancel_delayed_work_sync(&phy->mt76->mac_work);
77
78 mutex_lock(&dev->mt76.mutex);
79
80 mt7996_mcu_set_radio_en(phy, false);
81
82 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
83
84 mutex_unlock(&dev->mt76.mutex);
85 }
86
mt7996_stop(struct ieee80211_hw * hw,bool suspend)87 static void mt7996_stop(struct ieee80211_hw *hw, bool suspend)
88 {
89 }
90
get_free_idx(u32 mask,u8 start,u8 end)91 static inline int get_free_idx(u32 mask, u8 start, u8 end)
92 {
93 return ffs(~mask & GENMASK(end, start));
94 }
95
get_omac_idx(enum nl80211_iftype type,u64 mask)96 static int get_omac_idx(enum nl80211_iftype type, u64 mask)
97 {
98 int i;
99
100 switch (type) {
101 case NL80211_IFTYPE_MESH_POINT:
102 case NL80211_IFTYPE_ADHOC:
103 case NL80211_IFTYPE_STATION:
104 /* prefer hw bssid slot 1-3 */
105 i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3);
106 if (i)
107 return i - 1;
108
109 if (type != NL80211_IFTYPE_STATION)
110 break;
111
112 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
113 if (i)
114 return i - 1;
115
116 if (~mask & BIT(HW_BSSID_0))
117 return HW_BSSID_0;
118
119 break;
120 case NL80211_IFTYPE_MONITOR:
121 case NL80211_IFTYPE_AP:
122 /* ap uses hw bssid 0 and ext bssid */
123 if (~mask & BIT(HW_BSSID_0))
124 return HW_BSSID_0;
125
126 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
127 if (i)
128 return i - 1;
129
130 break;
131 default:
132 WARN_ON(1);
133 break;
134 }
135
136 return -1;
137 }
138
139 static void
mt7996_init_bitrate_mask(struct ieee80211_vif * vif,struct mt7996_vif_link * mlink)140 mt7996_init_bitrate_mask(struct ieee80211_vif *vif, struct mt7996_vif_link *mlink)
141 {
142 int i;
143
144 for (i = 0; i < ARRAY_SIZE(mlink->bitrate_mask.control); i++) {
145 mlink->bitrate_mask.control[i].gi = NL80211_TXRATE_DEFAULT_GI;
146 mlink->bitrate_mask.control[i].he_gi = 0xff;
147 mlink->bitrate_mask.control[i].he_ltf = 0xff;
148 mlink->bitrate_mask.control[i].legacy = GENMASK(31, 0);
149 memset(mlink->bitrate_mask.control[i].ht_mcs, 0xff,
150 sizeof(mlink->bitrate_mask.control[i].ht_mcs));
151 memset(mlink->bitrate_mask.control[i].vht_mcs, 0xff,
152 sizeof(mlink->bitrate_mask.control[i].vht_mcs));
153 memset(mlink->bitrate_mask.control[i].he_mcs, 0xff,
154 sizeof(mlink->bitrate_mask.control[i].he_mcs));
155 }
156 }
157
158 static int
mt7996_set_hw_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)159 mt7996_set_hw_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
160 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
161 struct ieee80211_key_conf *key)
162 {
163 struct mt7996_dev *dev = mt7996_hw_dev(hw);
164 int idx = key->keyidx;
165 unsigned int link_id;
166 unsigned long links;
167
168 if (key->link_id >= 0)
169 links = BIT(key->link_id);
170 else if (sta && sta->valid_links)
171 links = sta->valid_links;
172 else if (vif->valid_links)
173 links = vif->valid_links;
174 else
175 links = BIT(0);
176
177 for_each_set_bit(link_id, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
178 struct mt7996_sta_link *msta_link;
179 struct mt7996_vif_link *link;
180 u8 *wcid_keyidx;
181 int err;
182
183 link = mt7996_vif_link(dev, vif, link_id);
184 if (!link)
185 continue;
186
187 if (sta) {
188 struct mt7996_sta *msta;
189
190 msta = (struct mt7996_sta *)sta->drv_priv;
191 msta_link = mt76_dereference(msta->link[link_id],
192 &dev->mt76);
193 if (!msta_link)
194 continue;
195
196 if (!msta_link->wcid.sta)
197 return -EOPNOTSUPP;
198 } else {
199 msta_link = &link->msta_link;
200 }
201 wcid_keyidx = &msta_link->wcid.hw_key_idx;
202
203 switch (key->cipher) {
204 case WLAN_CIPHER_SUITE_AES_CMAC:
205 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
206 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
207 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
208 if (key->keyidx == 6 || key->keyidx == 7) {
209 wcid_keyidx = &msta_link->wcid.hw_key_idx2;
210 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
211 }
212 break;
213 default:
214 break;
215 }
216
217 if (cmd == SET_KEY && !sta && !link->mt76.cipher) {
218 struct ieee80211_bss_conf *link_conf;
219
220 link_conf = link_conf_dereference_protected(vif,
221 link_id);
222 if (!link_conf)
223 link_conf = &vif->bss_conf;
224
225 link->mt76.cipher =
226 mt76_connac_mcu_get_cipher(key->cipher);
227 mt7996_mcu_add_bss_info(link->phy, vif, link_conf,
228 &link->mt76, msta_link, true);
229 }
230
231 if (cmd == SET_KEY) {
232 *wcid_keyidx = idx;
233 } else {
234 if (idx == *wcid_keyidx)
235 *wcid_keyidx = -1;
236 continue;
237 }
238
239 mt76_wcid_key_setup(&dev->mt76, &msta_link->wcid, key);
240
241 if (key->keyidx == 6 || key->keyidx == 7) {
242 err = mt7996_mcu_bcn_prot_enable(dev, link,
243 msta_link, key);
244 if (err)
245 return err;
246 }
247
248 err = mt7996_mcu_add_key(&dev->mt76, vif, key,
249 MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
250 &msta_link->wcid, cmd);
251 if (err)
252 return err;
253 }
254
255 return 0;
256 }
257
258 static void
mt7996_key_iter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * data)259 mt7996_key_iter(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
260 struct ieee80211_sta *sta, struct ieee80211_key_conf *key,
261 void *data)
262 {
263 if (sta)
264 return;
265
266 WARN_ON(mt7996_set_hw_key(hw, SET_KEY, vif, NULL, key));
267 }
268
mt7996_vif_link_add(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct mt76_vif_link * mlink)269 int mt7996_vif_link_add(struct mt76_phy *mphy, struct ieee80211_vif *vif,
270 struct ieee80211_bss_conf *link_conf,
271 struct mt76_vif_link *mlink)
272 {
273 struct mt7996_vif_link *link = container_of(mlink, struct mt7996_vif_link, mt76);
274 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
275 struct mt7996_sta_link *msta_link = &link->msta_link;
276 struct mt7996_phy *phy = mphy->priv;
277 struct mt7996_dev *dev = phy->dev;
278 u8 band_idx = phy->mt76->band_idx;
279 struct mt76_txq *mtxq;
280 int idx, ret;
281
282 mlink->idx = __ffs64(~dev->mt76.vif_mask);
283 if (mlink->idx >= mt7996_max_interface_num(dev))
284 return -ENOSPC;
285
286 idx = get_omac_idx(vif->type, phy->omac_mask);
287 if (idx < 0)
288 return -ENOSPC;
289
290 link->phy = phy;
291 mlink->omac_idx = idx;
292 mlink->band_idx = band_idx;
293 mlink->wmm_idx = vif->type == NL80211_IFTYPE_AP ? 0 : 3;
294 mlink->wcid = &msta_link->wcid;
295 mlink->wcid->offchannel = mlink->offchannel;
296
297 ret = mt7996_mcu_add_dev_info(phy, vif, link_conf, mlink, true);
298 if (ret)
299 return ret;
300
301 dev->mt76.vif_mask |= BIT_ULL(mlink->idx);
302 phy->omac_mask |= BIT_ULL(mlink->omac_idx);
303
304 idx = MT7996_WTBL_RESERVED - mlink->idx;
305
306 INIT_LIST_HEAD(&msta_link->rc_list);
307 msta_link->wcid.idx = idx;
308 msta_link->wcid.link_id = link_conf->link_id;
309 msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET;
310 mt76_wcid_init(&msta_link->wcid, band_idx);
311
312 mt7996_mac_wtbl_update(dev, idx,
313 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
314
315 if (vif->txq) {
316 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
317 mtxq->wcid = idx;
318 }
319
320 if (vif->type != NL80211_IFTYPE_AP &&
321 (!mlink->omac_idx || mlink->omac_idx > 3))
322 vif->offload_flags = 0;
323
324 if (phy->mt76->chandef.chan->band != NL80211_BAND_2GHZ)
325 mlink->basic_rates_idx = MT7996_BASIC_RATES_TBL + 4;
326 else
327 mlink->basic_rates_idx = MT7996_BASIC_RATES_TBL;
328
329 mt7996_init_bitrate_mask(vif, link);
330
331 mt7996_mcu_add_bss_info(phy, vif, link_conf, mlink, msta_link, true);
332 /* defer the first STA_REC of BMC entry to BSS_CHANGED_BSSID for STA
333 * interface, since firmware only records BSSID when the entry is new
334 */
335 if (vif->type != NL80211_IFTYPE_STATION)
336 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
337 CONN_STATE_PORT_SECURE, true);
338 rcu_assign_pointer(dev->mt76.wcid[idx], &msta_link->wcid);
339
340 ieee80211_iter_keys(mphy->hw, vif, mt7996_key_iter, NULL);
341
342 if (mvif->mt76.deflink_id == IEEE80211_LINK_UNSPECIFIED)
343 mvif->mt76.deflink_id = link_conf->link_id;
344
345 return 0;
346 }
347
mt7996_vif_link_remove(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct mt76_vif_link * mlink)348 void mt7996_vif_link_remove(struct mt76_phy *mphy, struct ieee80211_vif *vif,
349 struct ieee80211_bss_conf *link_conf,
350 struct mt76_vif_link *mlink)
351 {
352 struct mt7996_vif_link *link = container_of(mlink, struct mt7996_vif_link, mt76);
353 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
354 struct mt7996_sta_link *msta_link = &link->msta_link;
355 struct mt7996_phy *phy = mphy->priv;
356 struct mt7996_dev *dev = phy->dev;
357 int idx = msta_link->wcid.idx;
358
359 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
360 CONN_STATE_DISCONNECT, false);
361 mt7996_mcu_add_bss_info(phy, vif, link_conf, mlink, msta_link, false);
362
363 mt7996_mcu_add_dev_info(phy, vif, link_conf, mlink, false);
364
365 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
366
367 if (mvif->mt76.deflink_id == link_conf->link_id) {
368 struct ieee80211_bss_conf *iter;
369 unsigned int link_id;
370
371 mvif->mt76.deflink_id = IEEE80211_LINK_UNSPECIFIED;
372 for_each_vif_active_link(vif, iter, link_id) {
373 if (link_id != IEEE80211_LINK_UNSPECIFIED) {
374 mvif->mt76.deflink_id = link_id;
375 break;
376 }
377 }
378 }
379
380 dev->mt76.vif_mask &= ~BIT_ULL(mlink->idx);
381 phy->omac_mask &= ~BIT_ULL(mlink->omac_idx);
382
383 spin_lock_bh(&dev->mt76.sta_poll_lock);
384 if (!list_empty(&msta_link->wcid.poll_list))
385 list_del_init(&msta_link->wcid.poll_list);
386 spin_unlock_bh(&dev->mt76.sta_poll_lock);
387
388 mt76_wcid_cleanup(&dev->mt76, &msta_link->wcid);
389 }
390
mt7996_phy_set_rxfilter(struct mt7996_phy * phy)391 static void mt7996_phy_set_rxfilter(struct mt7996_phy *phy)
392 {
393 struct mt7996_dev *dev = phy->dev;
394 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK |
395 MT_WF_RFCR1_DROP_BF_POLL |
396 MT_WF_RFCR1_DROP_BA |
397 MT_WF_RFCR1_DROP_CFEND |
398 MT_WF_RFCR1_DROP_CFACK;
399 u32 filter = phy->rxfilter;
400
401 if (filter & MT_WF_RFCR_DROP_OTHER_UC) {
402 filter |= MT_WF_RFCR_DROP_CTS |
403 MT_WF_RFCR_DROP_RTS |
404 MT_WF_RFCR_DROP_CTL_RSV |
405 MT_WF_RFCR_DROP_FCSFAIL;
406 }
407
408 mt76_wr(dev, MT_WF_RFCR(phy->mt76->band_idx), filter);
409 if (filter & MT_WF_RFCR_DROP_CTL_RSV)
410 mt76_set(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
411 else
412 mt76_clear(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
413 }
414
mt7996_set_monitor(struct mt7996_phy * phy,bool enabled)415 static void mt7996_set_monitor(struct mt7996_phy *phy, bool enabled)
416 {
417 struct mt7996_dev *dev = phy->dev;
418
419 if (!phy)
420 return;
421
422 if (enabled == !(phy->rxfilter & MT_WF_RFCR_DROP_OTHER_UC))
423 return;
424
425 if (!enabled)
426 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
427 else
428 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
429
430 mt76_rmw_field(dev, MT_DMA_DCR0(phy->mt76->band_idx),
431 MT_DMA_DCR0_RXD_G5_EN, enabled);
432 mt7996_phy_set_rxfilter(phy);
433 mt7996_mcu_set_sniffer_mode(phy, enabled);
434 }
435
mt7996_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)436 static int mt7996_add_interface(struct ieee80211_hw *hw,
437 struct ieee80211_vif *vif)
438 {
439 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
440 struct wireless_dev *wdev = ieee80211_vif_to_wdev(vif);
441 struct mt7996_dev *dev = mt7996_hw_dev(hw);
442 int i, err = 0;
443
444 mutex_lock(&dev->mt76.mutex);
445
446 for (i = 0; i < MT7996_MAX_RADIOS; i++) {
447 struct mt7996_phy *phy = dev->radio_phy[i];
448
449 if (!phy || !(wdev->radio_mask & BIT(i)) ||
450 test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
451 continue;
452
453 err = mt7996_run(phy);
454 if (err)
455 goto out;
456
457 if (vif->type == NL80211_IFTYPE_MONITOR)
458 mt7996_set_monitor(phy, true);
459 }
460
461 mt76_vif_init(vif, &mvif->mt76);
462
463 vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR;
464 mvif->mt76.deflink_id = IEEE80211_LINK_UNSPECIFIED;
465
466 out:
467 mutex_unlock(&dev->mt76.mutex);
468
469 return err;
470 }
471
472 struct mt7996_radio_data {
473 u32 active_mask;
474 u32 monitor_mask;
475 };
476
mt7996_remove_iter(void * data,u8 * mac,struct ieee80211_vif * vif)477 static void mt7996_remove_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
478 {
479 struct wireless_dev *wdev = ieee80211_vif_to_wdev(vif);
480 struct mt7996_radio_data *rdata = data;
481
482 rdata->active_mask |= wdev->radio_mask;
483 if (vif->type == NL80211_IFTYPE_MONITOR)
484 rdata->monitor_mask |= wdev->radio_mask;
485 }
486
mt7996_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)487 static void mt7996_remove_interface(struct ieee80211_hw *hw,
488 struct ieee80211_vif *vif)
489 {
490 struct mt7996_dev *dev = mt7996_hw_dev(hw);
491 struct mt7996_radio_data rdata = {};
492 int i;
493
494 ieee80211_iterate_active_interfaces_mtx(hw, 0, mt7996_remove_iter,
495 &rdata);
496 mt76_vif_cleanup(&dev->mt76, vif);
497
498 for (i = 0; i < MT7996_MAX_RADIOS; i++) {
499 struct mt7996_phy *phy = dev->radio_phy[i];
500
501 if (!phy)
502 continue;
503 if (!(rdata.monitor_mask & BIT(i)))
504 mt7996_set_monitor(phy, false);
505 if (!(rdata.active_mask & BIT(i)))
506 mt7996_stop_phy(phy);
507 }
508 }
509
mt7996_set_channel(struct mt76_phy * mphy)510 int mt7996_set_channel(struct mt76_phy *mphy)
511 {
512 struct mt7996_phy *phy = mphy->priv;
513 int ret;
514
515 ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_SWITCH);
516 if (ret)
517 goto out;
518
519 ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_RX_PATH);
520 if (ret)
521 goto out;
522
523 ret = mt7996_mcu_set_txpower_sku(phy);
524 if (ret)
525 goto out;
526
527 ret = mt7996_dfs_init_radar_detector(phy);
528 mt7996_mac_cca_stats_reset(phy);
529
530 mt7996_mac_reset_counters(phy);
531 phy->noise = 0;
532
533 out:
534 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
535 MT7996_WATCHDOG_TIME);
536
537 return ret;
538 }
539
mt7996_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)540 static int mt7996_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
541 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
542 struct ieee80211_key_conf *key)
543 {
544 struct mt7996_dev *dev = mt7996_hw_dev(hw);
545 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
546 int err;
547
548 /* The hardware does not support per-STA RX GTK, fallback
549 * to software mode for these.
550 */
551 if ((vif->type == NL80211_IFTYPE_ADHOC ||
552 vif->type == NL80211_IFTYPE_MESH_POINT) &&
553 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
554 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
555 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
556 return -EOPNOTSUPP;
557
558 /* fall back to sw encryption for unsupported ciphers */
559 switch (key->cipher) {
560 case WLAN_CIPHER_SUITE_TKIP:
561 case WLAN_CIPHER_SUITE_CCMP:
562 case WLAN_CIPHER_SUITE_CCMP_256:
563 case WLAN_CIPHER_SUITE_GCMP:
564 case WLAN_CIPHER_SUITE_GCMP_256:
565 case WLAN_CIPHER_SUITE_SMS4:
566 break;
567 case WLAN_CIPHER_SUITE_AES_CMAC:
568 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
569 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
570 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
571 if (key->keyidx == 6 || key->keyidx == 7)
572 break;
573 fallthrough;
574 case WLAN_CIPHER_SUITE_WEP40:
575 case WLAN_CIPHER_SUITE_WEP104:
576 default:
577 return -EOPNOTSUPP;
578 }
579
580 if (!mt7996_vif_link_phy(&mvif->deflink))
581 return 0; /* defer until after link add */
582
583 mutex_lock(&dev->mt76.mutex);
584 err = mt7996_set_hw_key(hw, cmd, vif, sta, key);
585 mutex_unlock(&dev->mt76.mutex);
586
587 return err;
588 }
589
mt7996_config(struct ieee80211_hw * hw,u32 changed)590 static int mt7996_config(struct ieee80211_hw *hw, u32 changed)
591 {
592 return 0;
593 }
594
595 static int
mt7996_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * params)596 mt7996_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
597 unsigned int link_id, u16 queue,
598 const struct ieee80211_tx_queue_params *params)
599 {
600 struct mt7996_dev *dev = mt7996_hw_dev(hw);
601 struct mt7996_vif_link *mlink = mt7996_vif_link(dev, vif, link_id);
602 static const u8 mq_to_aci[] = {
603 [IEEE80211_AC_VO] = 3,
604 [IEEE80211_AC_VI] = 2,
605 [IEEE80211_AC_BE] = 0,
606 [IEEE80211_AC_BK] = 1,
607 };
608
609 /* firmware uses access class index */
610 mlink->queue_params[mq_to_aci[queue]] = *params;
611 /* no need to update right away, we'll get BSS_CHANGED_QOS */
612
613 return 0;
614 }
615
mt7996_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)616 static void mt7996_configure_filter(struct ieee80211_hw *hw,
617 unsigned int changed_flags,
618 unsigned int *total_flags,
619 u64 multicast)
620 {
621 struct mt7996_dev *dev = mt7996_hw_dev(hw);
622 struct mt7996_phy *phy;
623 u32 filter_mask = 0, filter_set = 0;
624 u32 flags = 0;
625
626 #define MT76_FILTER(_flag, _hw) do { \
627 flags |= *total_flags & FIF_##_flag; \
628 filter_mask |= (_hw); \
629 filter_set |= !(flags & FIF_##_flag) * (_hw); \
630 } while (0)
631
632 mutex_lock(&dev->mt76.mutex);
633
634 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
635 MT_WF_RFCR_DROP_A3_MAC |
636 MT_WF_RFCR_DROP_A3_BSSID);
637
638 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
639
640 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
641 MT_WF_RFCR_DROP_RTS |
642 MT_WF_RFCR_DROP_CTL_RSV);
643
644 *total_flags = flags;
645
646 mt7996_for_each_phy(dev, phy) {
647 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
648 MT_WF_RFCR_DROP_OTHER_BEACON |
649 MT_WF_RFCR_DROP_FRAME_REPORT |
650 MT_WF_RFCR_DROP_PROBEREQ |
651 MT_WF_RFCR_DROP_MCAST_FILTERED |
652 MT_WF_RFCR_DROP_MCAST |
653 MT_WF_RFCR_DROP_BCAST |
654 MT_WF_RFCR_DROP_DUPLICATE |
655 MT_WF_RFCR_DROP_A2_BSSID |
656 MT_WF_RFCR_DROP_UNWANTED_CTL |
657 MT_WF_RFCR_DROP_STBC_MULTI |
658 filter_mask);
659 phy->rxfilter |= filter_set;
660 mt7996_phy_set_rxfilter(phy);
661 }
662
663 mutex_unlock(&dev->mt76.mutex);
664 }
665
666 static int
mt7996_get_txpower(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,int * dbm)667 mt7996_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
668 unsigned int link_id, int *dbm)
669 {
670 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
671 struct mt7996_phy *phy = mt7996_vif_link_phy(&mvif->deflink);
672 struct mt7996_dev *dev = mt7996_hw_dev(hw);
673 struct wireless_dev *wdev;
674 int n_chains, delta, i;
675
676 if (!phy) {
677 wdev = ieee80211_vif_to_wdev(vif);
678 for (i = 0; i < hw->wiphy->n_radio; i++)
679 if (wdev->radio_mask & BIT(i))
680 phy = dev->radio_phy[i];
681
682 if (!phy)
683 return -EINVAL;
684 }
685
686 n_chains = hweight16(phy->mt76->chainmask);
687 delta = mt76_tx_power_nss_delta(n_chains);
688 *dbm = DIV_ROUND_UP(phy->mt76->txpower_cur + delta, 2);
689
690 return 0;
691 }
692
693 static u8
mt7996_get_rates_table(struct mt7996_phy * phy,struct ieee80211_bss_conf * conf,bool beacon,bool mcast)694 mt7996_get_rates_table(struct mt7996_phy *phy, struct ieee80211_bss_conf *conf,
695 bool beacon, bool mcast)
696 {
697 struct mt7996_dev *dev = phy->dev;
698 struct mt76_vif_link *mvif = mt76_vif_conf_link(&dev->mt76, conf->vif, conf);
699 u16 rate;
700 u8 i, idx;
701
702 rate = mt76_connac2_mac_tx_rate_val(phy->mt76, conf, beacon, mcast);
703
704 if (beacon) {
705 /* odd index for driver, even index for firmware */
706 idx = MT7996_BEACON_RATES_TBL + 2 * phy->mt76->band_idx;
707 if (phy->beacon_rate != rate)
708 mt7996_mcu_set_fixed_rate_table(phy, idx, rate, beacon);
709
710 return idx;
711 }
712
713 idx = FIELD_GET(MT_TX_RATE_IDX, rate);
714 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
715 if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
716 return MT7996_BASIC_RATES_TBL + 2 * i;
717
718 return mvif->basic_rates_idx;
719 }
720
721 static void
mt7996_update_mu_group(struct ieee80211_hw * hw,struct mt7996_vif_link * link,struct ieee80211_bss_conf * info)722 mt7996_update_mu_group(struct ieee80211_hw *hw, struct mt7996_vif_link *link,
723 struct ieee80211_bss_conf *info)
724 {
725 struct mt7996_dev *dev = mt7996_hw_dev(hw);
726 u8 band = link->mt76.band_idx;
727 u32 *mu;
728
729 mu = (u32 *)info->mu_group.membership;
730 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD0(band), mu[0]);
731 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD1(band), mu[1]);
732
733 mu = (u32 *)info->mu_group.position;
734 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS0(band), mu[0]);
735 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS1(band), mu[1]);
736 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS2(band), mu[2]);
737 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS3(band), mu[3]);
738 }
739
740 static void
mt7996_vif_cfg_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 changed)741 mt7996_vif_cfg_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
742 u64 changed)
743 {
744 struct mt7996_dev *dev = mt7996_hw_dev(hw);
745
746 mutex_lock(&dev->mt76.mutex);
747
748 if ((changed & BSS_CHANGED_ASSOC) && vif->cfg.assoc) {
749 struct ieee80211_bss_conf *link_conf;
750 unsigned long link_id;
751
752 for_each_vif_active_link(vif, link_conf, link_id) {
753 struct mt7996_vif_link *link;
754
755 link = mt7996_vif_link(dev, vif, link_id);
756 if (!link)
757 continue;
758
759 if (!link->phy)
760 continue;
761
762 mt7996_mcu_add_bss_info(link->phy, vif, link_conf,
763 &link->mt76, &link->msta_link,
764 true);
765 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
766 CONN_STATE_PORT_SECURE,
767 !!(changed & BSS_CHANGED_BSSID));
768 }
769 }
770
771 mutex_unlock(&dev->mt76.mutex);
772 }
773
774 static void
mt7996_link_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)775 mt7996_link_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
776 struct ieee80211_bss_conf *info, u64 changed)
777 {
778 struct mt7996_dev *dev = mt7996_hw_dev(hw);
779 struct mt7996_vif_link *link;
780 struct mt7996_phy *phy;
781 struct mt76_phy *mphy;
782
783 mutex_lock(&dev->mt76.mutex);
784
785 link = mt7996_vif_conf_link(dev, vif, info);
786 if (!link)
787 goto out;
788
789 mphy = mt76_vif_link_phy(&link->mt76);
790 if (!mphy)
791 goto out;
792
793 phy = mphy->priv;
794
795 /* station mode uses BSSID to map the wlan entry to a peer,
796 * and then peer references bss_info_rfch to set bandwidth cap.
797 */
798 if ((changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid)) ||
799 (changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon)) {
800 mt7996_mcu_add_bss_info(phy, vif, info, &link->mt76,
801 &link->msta_link, true);
802 mt7996_mcu_add_sta(dev, info, NULL, link, NULL,
803 CONN_STATE_PORT_SECURE,
804 !!(changed & BSS_CHANGED_BSSID));
805 }
806
807 if (changed & BSS_CHANGED_ERP_SLOT) {
808 int slottime = info->use_short_slot ? 9 : 20;
809
810 if (slottime != phy->slottime) {
811 phy->slottime = slottime;
812 mt7996_mcu_set_timing(phy, vif, info);
813 }
814 }
815
816 if (changed & BSS_CHANGED_MCAST_RATE)
817 link->mt76.mcast_rates_idx =
818 mt7996_get_rates_table(phy, info, false, true);
819
820 if (changed & BSS_CHANGED_BASIC_RATES)
821 link->mt76.basic_rates_idx =
822 mt7996_get_rates_table(phy, info, false, false);
823
824 /* ensure that enable txcmd_mode after bss_info */
825 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
826 mt7996_mcu_set_tx(dev, vif, info);
827
828 if (changed & BSS_CHANGED_HE_OBSS_PD)
829 mt7996_mcu_add_obss_spr(phy, link, &info->he_obss_pd);
830
831 if (changed & BSS_CHANGED_HE_BSS_COLOR) {
832 if ((vif->type == NL80211_IFTYPE_AP &&
833 link->mt76.omac_idx <= HW_BSSID_MAX) ||
834 vif->type == NL80211_IFTYPE_STATION)
835 mt7996_mcu_update_bss_color(dev, &link->mt76,
836 &info->he_bss_color);
837 }
838
839 if (changed & (BSS_CHANGED_BEACON |
840 BSS_CHANGED_BEACON_ENABLED)) {
841 link->mt76.beacon_rates_idx =
842 mt7996_get_rates_table(phy, info, true, false);
843
844 mt7996_mcu_add_beacon(hw, vif, info);
845 }
846
847 if (changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP |
848 BSS_CHANGED_FILS_DISCOVERY))
849 mt7996_mcu_beacon_inband_discov(dev, info, link, changed);
850
851 if (changed & BSS_CHANGED_MU_GROUPS)
852 mt7996_update_mu_group(hw, link, info);
853
854 if (changed & BSS_CHANGED_TXPOWER &&
855 info->txpower != phy->txpower) {
856 phy->txpower = info->txpower;
857 mt7996_mcu_set_txpower_sku(phy);
858 }
859
860 out:
861 mutex_unlock(&dev->mt76.mutex);
862 }
863
864 static void
mt7996_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)865 mt7996_channel_switch_beacon(struct ieee80211_hw *hw,
866 struct ieee80211_vif *vif,
867 struct cfg80211_chan_def *chandef)
868 {
869 struct mt7996_dev *dev = mt7996_hw_dev(hw);
870
871 mutex_lock(&dev->mt76.mutex);
872 mt7996_mcu_add_beacon(hw, vif, &vif->bss_conf);
873 mutex_unlock(&dev->mt76.mutex);
874 }
875
876 static int
mt7996_mac_sta_init_link(struct mt7996_dev * dev,struct ieee80211_bss_conf * link_conf,struct ieee80211_link_sta * link_sta,struct mt7996_vif_link * link,unsigned int link_id)877 mt7996_mac_sta_init_link(struct mt7996_dev *dev,
878 struct ieee80211_bss_conf *link_conf,
879 struct ieee80211_link_sta *link_sta,
880 struct mt7996_vif_link *link, unsigned int link_id)
881 {
882 struct ieee80211_sta *sta = link_sta->sta;
883 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
884 struct mt7996_phy *phy = link->phy;
885 struct mt7996_sta_link *msta_link;
886 int idx;
887
888 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
889 if (idx < 0)
890 return -ENOSPC;
891
892 if (msta->deflink_id == IEEE80211_LINK_UNSPECIFIED) {
893 int i;
894
895 msta_link = &msta->deflink;
896 msta->deflink_id = link_id;
897
898 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
899 struct mt76_txq *mtxq;
900
901 if (!sta->txq[i])
902 continue;
903
904 mtxq = (struct mt76_txq *)sta->txq[i]->drv_priv;
905 mtxq->wcid = idx;
906 }
907 } else {
908 msta_link = kzalloc(sizeof(*msta_link), GFP_KERNEL);
909 if (!msta_link)
910 return -ENOMEM;
911 }
912
913 INIT_LIST_HEAD(&msta_link->rc_list);
914 INIT_LIST_HEAD(&msta_link->wcid.poll_list);
915 msta_link->sta = msta;
916 msta_link->wcid.sta = 1;
917 msta_link->wcid.idx = idx;
918 msta_link->wcid.link_id = link_id;
919
920 ewma_avg_signal_init(&msta_link->avg_ack_signal);
921 ewma_signal_init(&msta_link->wcid.rssi);
922
923 rcu_assign_pointer(msta->link[link_id], msta_link);
924
925 mt7996_mac_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
926 mt7996_mcu_add_sta(dev, link_conf, link_sta, link, msta_link,
927 CONN_STATE_DISCONNECT, true);
928
929 rcu_assign_pointer(dev->mt76.wcid[idx], &msta_link->wcid);
930 mt76_wcid_init(&msta_link->wcid, phy->mt76->band_idx);
931
932 return 0;
933 }
934
935 static void
mt7996_mac_sta_deinit_link(struct mt7996_dev * dev,struct mt7996_sta_link * msta_link)936 mt7996_mac_sta_deinit_link(struct mt7996_dev *dev,
937 struct mt7996_sta_link *msta_link)
938 {
939 int i;
940
941 for (i = 0; i < ARRAY_SIZE(msta_link->wcid.aggr); i++)
942 mt76_rx_aggr_stop(&dev->mt76, &msta_link->wcid, i);
943
944 mt7996_mac_wtbl_update(dev, msta_link->wcid.idx,
945 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
946
947 spin_lock_bh(&dev->mt76.sta_poll_lock);
948 if (!list_empty(&msta_link->wcid.poll_list))
949 list_del_init(&msta_link->wcid.poll_list);
950 if (!list_empty(&msta_link->rc_list))
951 list_del_init(&msta_link->rc_list);
952 spin_unlock_bh(&dev->mt76.sta_poll_lock);
953
954 mt76_wcid_cleanup(&dev->mt76, &msta_link->wcid);
955 mt76_wcid_mask_clear(dev->mt76.wcid_mask, msta_link->wcid.idx);
956 }
957
958 static void
mt7996_mac_sta_remove_links(struct mt7996_dev * dev,struct ieee80211_sta * sta,unsigned long links)959 mt7996_mac_sta_remove_links(struct mt7996_dev *dev, struct ieee80211_sta *sta,
960 unsigned long links)
961 {
962 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
963 struct mt76_dev *mdev = &dev->mt76;
964 unsigned int link_id;
965
966 for_each_set_bit(link_id, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
967 struct mt7996_sta_link *msta_link = NULL;
968
969 msta_link = rcu_replace_pointer(msta->link[link_id], msta_link,
970 lockdep_is_held(&mdev->mutex));
971 if (!msta_link)
972 continue;
973
974 mt7996_mac_sta_deinit_link(dev, msta_link);
975 if (msta->deflink_id == link_id) {
976 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
977 continue;
978 }
979
980 kfree_rcu(msta_link, rcu_head);
981 }
982 }
983
984 static int
mt7996_mac_sta_add_links(struct mt7996_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,unsigned long new_links)985 mt7996_mac_sta_add_links(struct mt7996_dev *dev, struct ieee80211_vif *vif,
986 struct ieee80211_sta *sta, unsigned long new_links)
987 {
988 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
989 unsigned int link_id;
990 int err;
991
992 for_each_set_bit(link_id, &new_links, IEEE80211_MLD_MAX_NUM_LINKS) {
993 struct ieee80211_bss_conf *link_conf;
994 struct ieee80211_link_sta *link_sta;
995 struct mt7996_vif_link *link;
996
997 if (rcu_access_pointer(msta->link[link_id]))
998 continue;
999
1000 link_conf = link_conf_dereference_protected(vif, link_id);
1001 if (!link_conf)
1002 goto error_unlink;
1003
1004 link = mt7996_vif_link(dev, vif, link_id);
1005 if (!link)
1006 goto error_unlink;
1007
1008 link_sta = link_sta_dereference_protected(sta, link_id);
1009 if (!link_sta)
1010 goto error_unlink;
1011
1012 err = mt7996_mac_sta_init_link(dev, link_conf, link_sta, link,
1013 link_id);
1014 if (err)
1015 goto error_unlink;
1016 }
1017
1018 return 0;
1019
1020 error_unlink:
1021 mt7996_mac_sta_remove_links(dev, sta, new_links);
1022
1023 return err;
1024 }
1025
1026 static int
mt7996_mac_sta_change_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 old_links,u16 new_links)1027 mt7996_mac_sta_change_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1028 struct ieee80211_sta *sta, u16 old_links,
1029 u16 new_links)
1030 {
1031 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1032 unsigned long add = new_links & ~old_links;
1033 unsigned long rem = old_links & ~new_links;
1034 int ret;
1035
1036 mutex_lock(&dev->mt76.mutex);
1037
1038 mt7996_mac_sta_remove_links(dev, sta, rem);
1039 ret = mt7996_mac_sta_add_links(dev, vif, sta, add);
1040
1041 mutex_unlock(&dev->mt76.mutex);
1042
1043 return ret;
1044 }
1045
1046 static int
mt7996_mac_sta_add(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_sta * sta)1047 mt7996_mac_sta_add(struct mt76_phy *mphy, struct ieee80211_vif *vif,
1048 struct ieee80211_sta *sta)
1049 {
1050 struct mt76_dev *mdev = mphy->dev;
1051 struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
1052 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1053 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1054 unsigned long links = sta->mlo ? sta->valid_links : BIT(0);
1055 int err;
1056
1057 mutex_lock(&mdev->mutex);
1058
1059 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
1060 msta->vif = mvif;
1061 err = mt7996_mac_sta_add_links(dev, vif, sta, links);
1062 if (!err)
1063 mphy->num_sta++;
1064
1065 mutex_unlock(&mdev->mutex);
1066
1067 return err;
1068 }
1069
1070 static int
mt7996_mac_sta_event(struct mt7996_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum mt76_sta_event ev)1071 mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
1072 struct ieee80211_sta *sta, enum mt76_sta_event ev)
1073 {
1074 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1075 unsigned long links = sta->valid_links;
1076 struct ieee80211_link_sta *link_sta;
1077 unsigned int link_id;
1078
1079 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1080 struct ieee80211_bss_conf *link_conf;
1081 struct mt7996_sta_link *msta_link;
1082 struct mt7996_vif_link *link;
1083 int i, err;
1084
1085 link_conf = link_conf_dereference_protected(vif, link_id);
1086 if (!link_conf)
1087 continue;
1088
1089 link = mt7996_vif_link(dev, vif, link_id);
1090 if (!link)
1091 continue;
1092
1093 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1094 if (!msta_link)
1095 continue;
1096
1097 switch (ev) {
1098 case MT76_STA_EVENT_ASSOC:
1099 err = mt7996_mcu_add_sta(dev, link_conf, link_sta,
1100 link, msta_link,
1101 CONN_STATE_CONNECT, true);
1102 if (err)
1103 return err;
1104
1105 err = mt7996_mcu_add_rate_ctrl(dev, vif, link_conf,
1106 link_sta, link,
1107 msta_link, false);
1108 if (err)
1109 return err;
1110
1111 msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET;
1112 msta_link->wcid.sta = 1;
1113 break;
1114 case MT76_STA_EVENT_AUTHORIZE:
1115 err = mt7996_mcu_add_sta(dev, link_conf, link_sta,
1116 link, msta_link,
1117 CONN_STATE_PORT_SECURE, false);
1118 if (err)
1119 return err;
1120 break;
1121 case MT76_STA_EVENT_DISASSOC:
1122 for (i = 0; i < ARRAY_SIZE(msta_link->twt.flow); i++)
1123 mt7996_mac_twt_teardown_flow(dev, link,
1124 msta_link, i);
1125
1126 if (sta->mlo && links == BIT(link_id)) /* last link */
1127 mt7996_mcu_teardown_mld_sta(dev, link,
1128 msta_link);
1129 else
1130 mt7996_mcu_add_sta(dev, link_conf, link_sta,
1131 link, msta_link,
1132 CONN_STATE_DISCONNECT, false);
1133 msta_link->wcid.sta_disabled = 1;
1134 msta_link->wcid.sta = 0;
1135 links = links & ~BIT(link_id);
1136 break;
1137 }
1138 }
1139
1140 return 0;
1141 }
1142
1143 static void
mt7996_mac_sta_remove(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_sta * sta)1144 mt7996_mac_sta_remove(struct mt76_phy *mphy, struct ieee80211_vif *vif,
1145 struct ieee80211_sta *sta)
1146 {
1147 struct mt76_dev *mdev = mphy->dev;
1148 struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
1149 unsigned long links = sta->mlo ? sta->valid_links : BIT(0);
1150
1151 mutex_lock(&mdev->mutex);
1152
1153 mt7996_mac_sta_remove_links(dev, sta, links);
1154 mphy->num_sta--;
1155
1156 mutex_unlock(&mdev->mutex);
1157 }
1158
1159 static int
mt7996_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)1160 mt7996_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1161 struct ieee80211_sta *sta, enum ieee80211_sta_state old_state,
1162 enum ieee80211_sta_state new_state)
1163 {
1164 struct mt76_phy *mphy = mt76_vif_phy(hw, vif);
1165 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1166 enum mt76_sta_event ev;
1167
1168 if (!mphy)
1169 return -EINVAL;
1170
1171 if (old_state == IEEE80211_STA_NOTEXIST &&
1172 new_state == IEEE80211_STA_NONE)
1173 return mt7996_mac_sta_add(mphy, vif, sta);
1174
1175 if (old_state == IEEE80211_STA_NONE &&
1176 new_state == IEEE80211_STA_NOTEXIST)
1177 mt7996_mac_sta_remove(mphy, vif, sta);
1178
1179 if (old_state == IEEE80211_STA_AUTH &&
1180 new_state == IEEE80211_STA_ASSOC)
1181 ev = MT76_STA_EVENT_ASSOC;
1182 else if (old_state == IEEE80211_STA_ASSOC &&
1183 new_state == IEEE80211_STA_AUTHORIZED)
1184 ev = MT76_STA_EVENT_AUTHORIZE;
1185 else if (old_state == IEEE80211_STA_ASSOC &&
1186 new_state == IEEE80211_STA_AUTH)
1187 ev = MT76_STA_EVENT_DISASSOC;
1188 else
1189 return 0;
1190
1191 return mt7996_mac_sta_event(dev, vif, sta, ev);
1192 }
1193
mt7996_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)1194 static void mt7996_tx(struct ieee80211_hw *hw,
1195 struct ieee80211_tx_control *control,
1196 struct sk_buff *skb)
1197 {
1198 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1199 struct mt76_phy *mphy = hw->priv;
1200 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1201 struct ieee80211_vif *vif = info->control.vif;
1202 struct mt76_wcid *wcid = &dev->mt76.global_wcid;
1203 u8 link_id = u32_get_bits(info->control.flags,
1204 IEEE80211_TX_CTRL_MLO_LINK);
1205
1206 rcu_read_lock();
1207
1208 if (vif) {
1209 struct mt7996_vif *mvif = (void *)vif->drv_priv;
1210 struct mt76_vif_link *mlink;
1211
1212 mlink = rcu_dereference(mvif->mt76.link[link_id]);
1213 if (mlink && mlink->wcid)
1214 wcid = mlink->wcid;
1215
1216 if (mvif->mt76.roc_phy &&
1217 (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)) {
1218 mphy = mvif->mt76.roc_phy;
1219 if (mphy->roc_link)
1220 wcid = mphy->roc_link->wcid;
1221 } else {
1222 mphy = mt76_vif_link_phy(&mvif->deflink.mt76);
1223 }
1224 }
1225
1226 if (!mphy) {
1227 ieee80211_free_txskb(hw, skb);
1228 goto unlock;
1229 }
1230
1231 if (control->sta) {
1232 struct mt7996_sta *msta = (void *)control->sta->drv_priv;
1233 struct mt7996_sta_link *msta_link;
1234
1235 msta_link = rcu_dereference(msta->link[link_id]);
1236 if (msta_link)
1237 wcid = &msta_link->wcid;
1238 }
1239 mt76_tx(mphy, control->sta, wcid, skb);
1240 unlock:
1241 rcu_read_unlock();
1242 }
1243
mt7996_set_rts_threshold(struct ieee80211_hw * hw,u32 val)1244 static int mt7996_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
1245 {
1246 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1247 int i, ret;
1248
1249 mutex_lock(&dev->mt76.mutex);
1250
1251 for (i = 0; i < hw->wiphy->n_radio; i++) {
1252 struct mt7996_phy *phy = dev->radio_phy[i];
1253
1254 ret = mt7996_mcu_set_rts_thresh(phy, val);
1255 if (ret)
1256 break;
1257 }
1258
1259 mutex_unlock(&dev->mt76.mutex);
1260
1261 return ret;
1262 }
1263
1264 static int
mt7996_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1265 mt7996_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1266 struct ieee80211_ampdu_params *params)
1267 {
1268 enum ieee80211_ampdu_mlme_action action = params->action;
1269 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1270 struct ieee80211_sta *sta = params->sta;
1271 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1272 struct ieee80211_txq *txq = sta->txq[params->tid];
1273 struct ieee80211_link_sta *link_sta;
1274 u16 tid = params->tid;
1275 u16 ssn = params->ssn;
1276 struct mt76_txq *mtxq;
1277 unsigned int link_id;
1278 int ret = 0;
1279
1280 if (!txq)
1281 return -EINVAL;
1282
1283 mtxq = (struct mt76_txq *)txq->drv_priv;
1284
1285 mutex_lock(&dev->mt76.mutex);
1286
1287 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1288 struct mt7996_sta_link *msta_link;
1289 struct mt7996_vif_link *link;
1290
1291 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1292 if (!msta_link)
1293 continue;
1294
1295 link = mt7996_vif_link(dev, vif, link_id);
1296 if (!link)
1297 continue;
1298
1299 switch (action) {
1300 case IEEE80211_AMPDU_RX_START:
1301 mt76_rx_aggr_start(&dev->mt76, &msta_link->wcid, tid,
1302 ssn, params->buf_size);
1303 ret = mt7996_mcu_add_rx_ba(dev, params, link, true);
1304 break;
1305 case IEEE80211_AMPDU_RX_STOP:
1306 mt76_rx_aggr_stop(&dev->mt76, &msta_link->wcid, tid);
1307 ret = mt7996_mcu_add_rx_ba(dev, params, link, false);
1308 break;
1309 case IEEE80211_AMPDU_TX_OPERATIONAL:
1310 mtxq->aggr = true;
1311 mtxq->send_bar = false;
1312 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1313 msta_link, true);
1314 break;
1315 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1316 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1317 mtxq->aggr = false;
1318 clear_bit(tid, &msta_link->wcid.ampdu_state);
1319 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1320 msta_link, false);
1321 break;
1322 case IEEE80211_AMPDU_TX_START:
1323 set_bit(tid, &msta_link->wcid.ampdu_state);
1324 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
1325 break;
1326 case IEEE80211_AMPDU_TX_STOP_CONT:
1327 mtxq->aggr = false;
1328 clear_bit(tid, &msta_link->wcid.ampdu_state);
1329 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1330 msta_link, false);
1331 break;
1332 }
1333
1334 if (ret)
1335 break;
1336 }
1337
1338 if (action == IEEE80211_AMPDU_TX_STOP_CONT)
1339 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1340
1341 mutex_unlock(&dev->mt76.mutex);
1342
1343 return ret;
1344 }
1345
1346 static int
mt7996_get_stats(struct ieee80211_hw * hw,struct ieee80211_low_level_stats * stats)1347 mt7996_get_stats(struct ieee80211_hw *hw,
1348 struct ieee80211_low_level_stats *stats)
1349 {
1350 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1351 int i;
1352
1353 mutex_lock(&dev->mt76.mutex);
1354
1355 memset(stats, 0, sizeof(*stats));
1356 for (i = 0; i < hw->wiphy->n_radio; i++) {
1357 struct mt7996_phy *phy = dev->radio_phy[i];
1358 struct mt76_mib_stats *mib = &phy->mib;
1359
1360 stats->dot11RTSSuccessCount += mib->rts_cnt;
1361 stats->dot11RTSFailureCount += mib->rts_retries_cnt;
1362 stats->dot11FCSErrorCount += mib->fcs_err_cnt;
1363 stats->dot11ACKFailureCount += mib->ack_fail_cnt;
1364 }
1365
1366 mutex_unlock(&dev->mt76.mutex);
1367
1368 return 0;
1369 }
1370
__mt7996_get_tsf(struct ieee80211_hw * hw,struct mt7996_vif_link * link)1371 u64 __mt7996_get_tsf(struct ieee80211_hw *hw, struct mt7996_vif_link *link)
1372 {
1373 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1374 struct mt7996_phy *phy = link->phy;
1375 union {
1376 u64 t64;
1377 u32 t32[2];
1378 } tsf;
1379 u16 n;
1380
1381 if (!phy)
1382 return 0;
1383
1384 lockdep_assert_held(&dev->mt76.mutex);
1385
1386 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1387 : link->mt76.omac_idx;
1388 /* TSF software read */
1389 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1390 MT_LPON_TCR_SW_READ);
1391 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(phy->mt76->band_idx));
1392 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(phy->mt76->band_idx));
1393
1394 return tsf.t64;
1395 }
1396
1397 static u64
mt7996_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1398 mt7996_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1399 {
1400 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1401 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1402 u64 ret;
1403
1404 mutex_lock(&dev->mt76.mutex);
1405 ret = __mt7996_get_tsf(hw, &mvif->deflink);
1406 mutex_unlock(&dev->mt76.mutex);
1407
1408 return ret;
1409 }
1410
1411 static void
mt7996_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 timestamp)1412 mt7996_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1413 u64 timestamp)
1414 {
1415 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1416 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1417 struct mt7996_vif_link *link;
1418 struct mt7996_phy *phy;
1419 union {
1420 u64 t64;
1421 u32 t32[2];
1422 } tsf = { .t64 = timestamp, };
1423 u16 n;
1424
1425 mutex_lock(&dev->mt76.mutex);
1426
1427 link = mt7996_vif_link(dev, vif, mvif->mt76.deflink_id);
1428 if (!link)
1429 goto unlock;
1430
1431 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1432 : link->mt76.omac_idx;
1433 phy = link->phy;
1434 if (!phy)
1435 goto unlock;
1436
1437 mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
1438 mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
1439 /* TSF software overwrite */
1440 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1441 MT_LPON_TCR_SW_WRITE);
1442
1443 unlock:
1444 mutex_unlock(&dev->mt76.mutex);
1445 }
1446
1447 static void
mt7996_offset_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,s64 timestamp)1448 mt7996_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1449 s64 timestamp)
1450 {
1451 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1452 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1453 struct mt7996_vif_link *link;
1454 struct mt7996_phy *phy;
1455 union {
1456 u64 t64;
1457 u32 t32[2];
1458 } tsf = { .t64 = timestamp, };
1459 u16 n;
1460
1461 mutex_lock(&dev->mt76.mutex);
1462
1463 link = mt7996_vif_link(dev, vif, mvif->mt76.deflink_id);
1464 if (!link)
1465 goto unlock;
1466
1467 phy = link->phy;
1468 if (!phy)
1469 goto unlock;
1470
1471 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1472 : link->mt76.omac_idx;
1473 mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
1474 mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
1475 /* TSF software adjust*/
1476 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1477 MT_LPON_TCR_SW_ADJUST);
1478
1479 unlock:
1480 mutex_unlock(&dev->mt76.mutex);
1481 }
1482
1483 static void
mt7996_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)1484 mt7996_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
1485 {
1486 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1487 struct mt7996_phy *phy;
1488
1489 mutex_lock(&dev->mt76.mutex);
1490 mt7996_for_each_phy(dev, phy) {
1491 phy->coverage_class = max_t(s16, coverage_class, 0);
1492 mt7996_mac_set_coverage_class(phy);
1493 }
1494 mutex_unlock(&dev->mt76.mutex);
1495 }
1496
1497 static int
mt7996_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)1498 mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1499 {
1500 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1501 int i;
1502
1503 if (tx_ant != rx_ant)
1504 return -EINVAL;
1505
1506 for (i = 0; i < hw->wiphy->n_radio; i++) {
1507 struct mt7996_phy *phy = dev->radio_phy[i];
1508
1509 if (!(tx_ant & phy->orig_chainmask))
1510 return -EINVAL;
1511 }
1512
1513 mutex_lock(&dev->mt76.mutex);
1514
1515 for (i = 0; i < hw->wiphy->n_radio; i++) {
1516 struct mt7996_phy *phy = dev->radio_phy[i];
1517 u8 band_idx = phy->mt76->band_idx;
1518 u8 shift = dev->chainshift[band_idx];
1519
1520 phy->mt76->chainmask = tx_ant & phy->orig_chainmask;
1521 phy->mt76->antenna_mask = phy->mt76->chainmask >> shift;
1522
1523 mt76_set_stream_caps(phy->mt76, true);
1524 mt7996_set_stream_vht_txbf_caps(phy);
1525 mt7996_set_stream_he_eht_caps(phy);
1526 mt7996_mcu_set_txpower_sku(phy);
1527 }
1528
1529 mutex_unlock(&dev->mt76.mutex);
1530
1531 return 0;
1532 }
1533
mt7996_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)1534 static void mt7996_sta_statistics(struct ieee80211_hw *hw,
1535 struct ieee80211_vif *vif,
1536 struct ieee80211_sta *sta,
1537 struct station_info *sinfo)
1538 {
1539 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1540 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1541 struct mt7996_sta_link *msta_link = &msta->deflink;
1542 struct rate_info *txrate = &msta_link->wcid.rate;
1543
1544 if (txrate->legacy || txrate->flags) {
1545 if (txrate->legacy) {
1546 sinfo->txrate.legacy = txrate->legacy;
1547 } else {
1548 sinfo->txrate.mcs = txrate->mcs;
1549 sinfo->txrate.nss = txrate->nss;
1550 sinfo->txrate.bw = txrate->bw;
1551 sinfo->txrate.he_gi = txrate->he_gi;
1552 sinfo->txrate.he_dcm = txrate->he_dcm;
1553 sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc;
1554 sinfo->txrate.eht_gi = txrate->eht_gi;
1555 }
1556 sinfo->txrate.flags = txrate->flags;
1557 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1558 }
1559 sinfo->txrate.flags = txrate->flags;
1560 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1561
1562 sinfo->tx_failed = msta_link->wcid.stats.tx_failed;
1563 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1564
1565 sinfo->tx_retries = msta_link->wcid.stats.tx_retries;
1566 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
1567
1568 sinfo->ack_signal = (s8)msta_link->ack_signal;
1569 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
1570
1571 sinfo->avg_ack_signal =
1572 -(s8)ewma_avg_signal_read(&msta_link->avg_ack_signal);
1573 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL_AVG);
1574
1575 if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
1576 sinfo->tx_bytes = msta_link->wcid.stats.tx_bytes;
1577 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
1578
1579 sinfo->rx_bytes = msta_link->wcid.stats.rx_bytes;
1580 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
1581
1582 sinfo->tx_packets = msta_link->wcid.stats.tx_packets;
1583 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
1584
1585 sinfo->rx_packets = msta_link->wcid.stats.rx_packets;
1586 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
1587 }
1588 }
1589
mt7996_link_rate_ctrl_update(void * data,struct ieee80211_sta * sta)1590 static void mt7996_link_rate_ctrl_update(void *data, struct ieee80211_sta *sta)
1591 {
1592 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1593 struct mt7996_dev *dev = msta->vif->deflink.phy->dev;
1594 struct mt7996_sta_link *msta_link;
1595 u32 *changed = data;
1596
1597 rcu_read_lock();
1598
1599 msta_link = rcu_dereference(msta->link[msta->deflink_id]);
1600 if (!msta_link)
1601 goto out;
1602
1603 spin_lock_bh(&dev->mt76.sta_poll_lock);
1604
1605 msta_link->changed |= *changed;
1606 if (list_empty(&msta_link->rc_list))
1607 list_add_tail(&msta_link->rc_list, &dev->sta_rc_list);
1608
1609 spin_unlock_bh(&dev->mt76.sta_poll_lock);
1610 out:
1611 rcu_read_unlock();
1612 }
1613
mt7996_link_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta,u32 changed)1614 static void mt7996_link_sta_rc_update(struct ieee80211_hw *hw,
1615 struct ieee80211_vif *vif,
1616 struct ieee80211_link_sta *link_sta,
1617 u32 changed)
1618 {
1619 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1620 struct ieee80211_sta *sta = link_sta->sta;
1621
1622 mt7996_link_rate_ctrl_update(&changed, sta);
1623 ieee80211_queue_work(hw, &dev->rc_work);
1624 }
1625
1626 static int
mt7996_set_bitrate_mask(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct cfg80211_bitrate_mask * mask)1627 mt7996_set_bitrate_mask(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1628 const struct cfg80211_bitrate_mask *mask)
1629 {
1630 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1631 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1632 u32 changed = IEEE80211_RC_SUPP_RATES_CHANGED;
1633
1634 mvif->deflink.bitrate_mask = *mask;
1635
1636 /* if multiple rates across different preambles are given we can
1637 * reconfigure this info with all peers using sta_rec command with
1638 * the below exception cases.
1639 * - single rate : if a rate is passed along with different preambles,
1640 * we select the highest one as fixed rate. i.e VHT MCS for VHT peers.
1641 * - multiple rates: if it's not in range format i.e 0-{7,8,9} for VHT
1642 * then multiple MCS setting (MCS 4,5,6) is not supported.
1643 */
1644 ieee80211_iterate_stations_atomic(hw, mt7996_link_rate_ctrl_update,
1645 &changed);
1646 ieee80211_queue_work(hw, &dev->rc_work);
1647
1648 return 0;
1649 }
1650
mt7996_sta_set_4addr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1651 static void mt7996_sta_set_4addr(struct ieee80211_hw *hw,
1652 struct ieee80211_vif *vif,
1653 struct ieee80211_sta *sta,
1654 bool enabled)
1655 {
1656 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1657 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1658 struct ieee80211_link_sta *link_sta;
1659 unsigned int link_id;
1660
1661 mutex_lock(&dev->mt76.mutex);
1662
1663 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1664 struct mt7996_sta_link *msta_link;
1665 struct mt7996_vif_link *link;
1666
1667 link = mt7996_vif_link(dev, vif, link_id);
1668 if (!link)
1669 continue;
1670
1671 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1672 if (!msta_link)
1673 continue;
1674
1675 if (enabled)
1676 set_bit(MT_WCID_FLAG_4ADDR, &msta_link->wcid.flags);
1677 else
1678 clear_bit(MT_WCID_FLAG_4ADDR, &msta_link->wcid.flags);
1679
1680 if (!msta_link->wcid.sta)
1681 continue;
1682
1683 mt7996_mcu_wtbl_update_hdr_trans(dev, vif, link, msta_link);
1684 }
1685
1686 mutex_unlock(&dev->mt76.mutex);
1687 }
1688
mt7996_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1689 static void mt7996_sta_set_decap_offload(struct ieee80211_hw *hw,
1690 struct ieee80211_vif *vif,
1691 struct ieee80211_sta *sta,
1692 bool enabled)
1693 {
1694 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1695 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1696 struct ieee80211_link_sta *link_sta;
1697 unsigned int link_id;
1698
1699 mutex_lock(&dev->mt76.mutex);
1700
1701 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1702 struct mt7996_sta_link *msta_link;
1703 struct mt7996_vif_link *link;
1704
1705 link = mt7996_vif_link(dev, vif, link_id);
1706 if (!link)
1707 continue;
1708
1709 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1710 if (!msta_link)
1711 continue;
1712
1713 if (enabled)
1714 set_bit(MT_WCID_FLAG_HDR_TRANS,
1715 &msta_link->wcid.flags);
1716 else
1717 clear_bit(MT_WCID_FLAG_HDR_TRANS,
1718 &msta_link->wcid.flags);
1719
1720 if (!msta_link->wcid.sta)
1721 continue;
1722
1723 mt7996_mcu_wtbl_update_hdr_trans(dev, vif, link, msta_link);
1724 }
1725
1726 mutex_unlock(&dev->mt76.mutex);
1727 }
1728
1729 static const char mt7996_gstrings_stats[][ETH_GSTRING_LEN] = {
1730 "tx_ampdu_cnt",
1731 "tx_stop_q_empty_cnt",
1732 "tx_mpdu_attempts",
1733 "tx_mpdu_success",
1734 "tx_rwp_fail_cnt",
1735 "tx_rwp_need_cnt",
1736 "tx_pkt_ebf_cnt",
1737 "tx_pkt_ibf_cnt",
1738 "tx_ampdu_len:0-1",
1739 "tx_ampdu_len:2-10",
1740 "tx_ampdu_len:11-19",
1741 "tx_ampdu_len:20-28",
1742 "tx_ampdu_len:29-37",
1743 "tx_ampdu_len:38-46",
1744 "tx_ampdu_len:47-55",
1745 "tx_ampdu_len:56-79",
1746 "tx_ampdu_len:80-103",
1747 "tx_ampdu_len:104-127",
1748 "tx_ampdu_len:128-151",
1749 "tx_ampdu_len:152-175",
1750 "tx_ampdu_len:176-199",
1751 "tx_ampdu_len:200-223",
1752 "tx_ampdu_len:224-247",
1753 "ba_miss_count",
1754 "tx_beamformer_ppdu_iBF",
1755 "tx_beamformer_ppdu_eBF",
1756 "tx_beamformer_rx_feedback_all",
1757 "tx_beamformer_rx_feedback_he",
1758 "tx_beamformer_rx_feedback_vht",
1759 "tx_beamformer_rx_feedback_ht",
1760 "tx_beamformer_rx_feedback_bw", /* zero based idx: 20, 40, 80, 160 */
1761 "tx_beamformer_rx_feedback_nc",
1762 "tx_beamformer_rx_feedback_nr",
1763 "tx_beamformee_ok_feedback_pkts",
1764 "tx_beamformee_feedback_trig",
1765 "tx_mu_beamforming",
1766 "tx_mu_mpdu",
1767 "tx_mu_successful_mpdu",
1768 "tx_su_successful_mpdu",
1769 "tx_msdu_pack_1",
1770 "tx_msdu_pack_2",
1771 "tx_msdu_pack_3",
1772 "tx_msdu_pack_4",
1773 "tx_msdu_pack_5",
1774 "tx_msdu_pack_6",
1775 "tx_msdu_pack_7",
1776 "tx_msdu_pack_8",
1777
1778 /* rx counters */
1779 "rx_fifo_full_cnt",
1780 "rx_mpdu_cnt",
1781 "channel_idle_cnt",
1782 "rx_vector_mismatch_cnt",
1783 "rx_delimiter_fail_cnt",
1784 "rx_len_mismatch_cnt",
1785 "rx_ampdu_cnt",
1786 "rx_ampdu_bytes_cnt",
1787 "rx_ampdu_valid_subframe_cnt",
1788 "rx_ampdu_valid_subframe_b_cnt",
1789 "rx_pfdrop_cnt",
1790 "rx_vec_queue_overflow_drop_cnt",
1791 "rx_ba_cnt",
1792
1793 /* per vif counters */
1794 "v_tx_mode_cck",
1795 "v_tx_mode_ofdm",
1796 "v_tx_mode_ht",
1797 "v_tx_mode_ht_gf",
1798 "v_tx_mode_vht",
1799 "v_tx_mode_he_su",
1800 "v_tx_mode_he_ext_su",
1801 "v_tx_mode_he_tb",
1802 "v_tx_mode_he_mu",
1803 "v_tx_mode_eht_su",
1804 "v_tx_mode_eht_trig",
1805 "v_tx_mode_eht_mu",
1806 "v_tx_bw_20",
1807 "v_tx_bw_40",
1808 "v_tx_bw_80",
1809 "v_tx_bw_160",
1810 "v_tx_bw_320",
1811 "v_tx_mcs_0",
1812 "v_tx_mcs_1",
1813 "v_tx_mcs_2",
1814 "v_tx_mcs_3",
1815 "v_tx_mcs_4",
1816 "v_tx_mcs_5",
1817 "v_tx_mcs_6",
1818 "v_tx_mcs_7",
1819 "v_tx_mcs_8",
1820 "v_tx_mcs_9",
1821 "v_tx_mcs_10",
1822 "v_tx_mcs_11",
1823 "v_tx_mcs_12",
1824 "v_tx_mcs_13",
1825 "v_tx_nss_1",
1826 "v_tx_nss_2",
1827 "v_tx_nss_3",
1828 "v_tx_nss_4",
1829 };
1830
1831 #define MT7996_SSTATS_LEN ARRAY_SIZE(mt7996_gstrings_stats)
1832
1833 /* Ethtool related API */
1834 static
mt7996_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)1835 void mt7996_get_et_strings(struct ieee80211_hw *hw,
1836 struct ieee80211_vif *vif,
1837 u32 sset, u8 *data)
1838 {
1839 if (sset == ETH_SS_STATS)
1840 memcpy(data, mt7996_gstrings_stats,
1841 sizeof(mt7996_gstrings_stats));
1842 }
1843
1844 static
mt7996_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)1845 int mt7996_get_et_sset_count(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif, int sset)
1847 {
1848 if (sset == ETH_SS_STATS)
1849 return MT7996_SSTATS_LEN;
1850
1851 return 0;
1852 }
1853
mt7996_ethtool_worker(void * wi_data,struct ieee80211_sta * sta)1854 static void mt7996_ethtool_worker(void *wi_data, struct ieee80211_sta *sta)
1855 {
1856 struct mt76_ethtool_worker_info *wi = wi_data;
1857 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1858 struct mt7996_sta_link *msta_link = &msta->deflink;
1859
1860 if (msta->vif->deflink.mt76.idx != wi->idx)
1861 return;
1862
1863 mt76_ethtool_worker(wi, &msta_link->wcid.stats, true);
1864 }
1865
1866 static
mt7996_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)1867 void mt7996_get_et_stats(struct ieee80211_hw *hw,
1868 struct ieee80211_vif *vif,
1869 struct ethtool_stats *stats, u64 *data)
1870 {
1871 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1872 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1873 struct mt7996_phy *phy = mt7996_vif_link_phy(&mvif->deflink);
1874 struct mt76_mib_stats *mib = &phy->mib;
1875 struct mt76_ethtool_worker_info wi = {
1876 .data = data,
1877 .idx = mvif->deflink.mt76.idx,
1878 };
1879 /* See mt7996_ampdu_stat_read_phy, etc */
1880 int i, ei = 0;
1881
1882 if (!phy)
1883 return;
1884
1885 mutex_lock(&dev->mt76.mutex);
1886
1887 mt7996_mac_update_stats(phy);
1888
1889 data[ei++] = mib->tx_ampdu_cnt;
1890 data[ei++] = mib->tx_stop_q_empty_cnt;
1891 data[ei++] = mib->tx_mpdu_attempts_cnt;
1892 data[ei++] = mib->tx_mpdu_success_cnt;
1893 data[ei++] = mib->tx_rwp_fail_cnt;
1894 data[ei++] = mib->tx_rwp_need_cnt;
1895 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
1896 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
1897
1898 /* Tx ampdu stat */
1899 for (i = 0; i < 15 /*ARRAY_SIZE(bound)*/; i++)
1900 data[ei++] = phy->mt76->aggr_stats[i];
1901 data[ei++] = phy->mib.ba_miss_cnt;
1902
1903 /* Tx Beamformer monitor */
1904 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
1905 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
1906
1907 /* Tx Beamformer Rx feedback monitor */
1908 data[ei++] = mib->tx_bf_rx_fb_all_cnt;
1909 data[ei++] = mib->tx_bf_rx_fb_he_cnt;
1910 data[ei++] = mib->tx_bf_rx_fb_vht_cnt;
1911 data[ei++] = mib->tx_bf_rx_fb_ht_cnt;
1912
1913 data[ei++] = mib->tx_bf_rx_fb_bw;
1914 data[ei++] = mib->tx_bf_rx_fb_nc_cnt;
1915 data[ei++] = mib->tx_bf_rx_fb_nr_cnt;
1916
1917 /* Tx Beamformee Rx NDPA & Tx feedback report */
1918 data[ei++] = mib->tx_bf_fb_cpl_cnt;
1919 data[ei++] = mib->tx_bf_fb_trig_cnt;
1920
1921 /* Tx SU & MU counters */
1922 data[ei++] = mib->tx_mu_bf_cnt;
1923 data[ei++] = mib->tx_mu_mpdu_cnt;
1924 data[ei++] = mib->tx_mu_acked_mpdu_cnt;
1925 data[ei++] = mib->tx_su_acked_mpdu_cnt;
1926
1927 /* Tx amsdu info (pack-count histogram) */
1928 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++)
1929 data[ei++] = mib->tx_amsdu[i];
1930
1931 /* rx counters */
1932 data[ei++] = mib->rx_fifo_full_cnt;
1933 data[ei++] = mib->rx_mpdu_cnt;
1934 data[ei++] = mib->channel_idle_cnt;
1935 data[ei++] = mib->rx_vector_mismatch_cnt;
1936 data[ei++] = mib->rx_delimiter_fail_cnt;
1937 data[ei++] = mib->rx_len_mismatch_cnt;
1938 data[ei++] = mib->rx_ampdu_cnt;
1939 data[ei++] = mib->rx_ampdu_bytes_cnt;
1940 data[ei++] = mib->rx_ampdu_valid_subframe_cnt;
1941 data[ei++] = mib->rx_ampdu_valid_subframe_bytes_cnt;
1942 data[ei++] = mib->rx_pfdrop_cnt;
1943 data[ei++] = mib->rx_vec_queue_overflow_drop_cnt;
1944 data[ei++] = mib->rx_ba_cnt;
1945
1946 /* Add values for all stations owned by this vif */
1947 wi.initial_stat_idx = ei;
1948 ieee80211_iterate_stations_atomic(hw, mt7996_ethtool_worker, &wi);
1949
1950 mutex_unlock(&dev->mt76.mutex);
1951
1952 if (wi.sta_count == 0)
1953 return;
1954
1955 ei += wi.worker_stat_count;
1956 if (ei != MT7996_SSTATS_LEN)
1957 dev_err(dev->mt76.dev, "ei: %d MT7996_SSTATS_LEN: %d",
1958 ei, (int)MT7996_SSTATS_LEN);
1959 }
1960
1961 static void
mt7996_twt_teardown_request(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u8 flowid)1962 mt7996_twt_teardown_request(struct ieee80211_hw *hw,
1963 struct ieee80211_sta *sta,
1964 u8 flowid)
1965 {
1966 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1967 struct mt7996_sta_link *msta_link = &msta->deflink;
1968 struct mt7996_vif_link *link = &msta->vif->deflink;
1969 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1970
1971 mutex_lock(&dev->mt76.mutex);
1972 mt7996_mac_twt_teardown_flow(dev, link, msta_link, flowid);
1973 mutex_unlock(&dev->mt76.mutex);
1974 }
1975
1976 static int
mt7996_set_radar_background(struct ieee80211_hw * hw,struct cfg80211_chan_def * chandef)1977 mt7996_set_radar_background(struct ieee80211_hw *hw,
1978 struct cfg80211_chan_def *chandef)
1979 {
1980 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1981 struct mt7996_phy *phy;
1982 int ret = -EINVAL;
1983 bool running;
1984
1985 if (chandef)
1986 phy = mt7996_band_phy(dev, chandef->chan->band);
1987 else
1988 phy = dev->rdd2_phy;
1989 if (!phy)
1990 return -EINVAL;
1991
1992 mutex_lock(&dev->mt76.mutex);
1993
1994 if (dev->mt76.region == NL80211_DFS_UNSET)
1995 goto out;
1996
1997 if (dev->rdd2_phy && dev->rdd2_phy != phy) {
1998 /* rdd2 is already locked */
1999 ret = -EBUSY;
2000 goto out;
2001 }
2002
2003 /* rdd2 already configured on a radar channel */
2004 running = dev->rdd2_phy &&
2005 cfg80211_chandef_valid(&dev->rdd2_chandef) &&
2006 !!(dev->rdd2_chandef.chan->flags & IEEE80211_CHAN_RADAR);
2007
2008 if (!chandef || running ||
2009 !(chandef->chan->flags & IEEE80211_CHAN_RADAR)) {
2010 ret = mt7996_mcu_rdd_background_enable(phy, NULL);
2011 if (ret)
2012 goto out;
2013
2014 if (!running)
2015 goto update_phy;
2016 }
2017
2018 ret = mt7996_mcu_rdd_background_enable(phy, chandef);
2019 if (ret)
2020 goto out;
2021
2022 update_phy:
2023 dev->rdd2_phy = chandef ? phy : NULL;
2024 if (chandef)
2025 dev->rdd2_chandef = *chandef;
2026 out:
2027 mutex_unlock(&dev->mt76.mutex);
2028
2029 return ret;
2030 }
2031
2032 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
2033 static int
mt7996_net_fill_forward_path(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct net_device_path_ctx * ctx,struct net_device_path * path)2034 mt7996_net_fill_forward_path(struct ieee80211_hw *hw,
2035 struct ieee80211_vif *vif,
2036 struct ieee80211_sta *sta,
2037 struct net_device_path_ctx *ctx,
2038 struct net_device_path *path)
2039 {
2040 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
2041 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
2042 struct mt7996_dev *dev = mt7996_hw_dev(hw);
2043 struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
2044 struct mt7996_sta_link *msta_link;
2045 struct mt7996_vif_link *link;
2046 struct mt76_vif_link *mlink;
2047 struct mt7996_phy *phy;
2048
2049 mlink = rcu_dereference(mvif->mt76.link[msta->deflink_id]);
2050 if (!mlink)
2051 return -EIO;
2052
2053 msta_link = rcu_dereference(msta->link[msta->deflink_id]);
2054 if (!msta_link)
2055 return -EIO;
2056
2057 if (!msta_link->wcid.sta || msta_link->wcid.idx > MT7996_WTBL_STA)
2058 return -EIO;
2059
2060 link = (struct mt7996_vif_link *)mlink;
2061 phy = mt7996_vif_link_phy(link);
2062 if (!phy)
2063 return -ENODEV;
2064
2065 if (phy != &dev->phy && phy->mt76->band_idx == MT_BAND2)
2066 wed = &dev->mt76.mmio.wed_hif2;
2067
2068 if (!mtk_wed_device_active(wed))
2069 return -ENODEV;
2070
2071 path->type = DEV_PATH_MTK_WDMA;
2072 path->dev = ctx->dev;
2073 path->mtk_wdma.wdma_idx = wed->wdma_idx;
2074 path->mtk_wdma.bss = mlink->idx;
2075 path->mtk_wdma.queue = 0;
2076 path->mtk_wdma.wcid = msta_link->wcid.idx;
2077
2078 path->mtk_wdma.amsdu = mtk_wed_is_amsdu_supported(wed);
2079 ctx->dev = NULL;
2080
2081 return 0;
2082 }
2083
2084 #endif
2085
2086 static int
mt7996_change_vif_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 old_links,u16 new_links,struct ieee80211_bss_conf * old[IEEE80211_MLD_MAX_NUM_LINKS])2087 mt7996_change_vif_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2088 u16 old_links, u16 new_links,
2089 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
2090 {
2091 return 0;
2092 }
2093
2094 const struct ieee80211_ops mt7996_ops = {
2095 .add_chanctx = mt76_add_chanctx,
2096 .remove_chanctx = mt76_remove_chanctx,
2097 .change_chanctx = mt76_change_chanctx,
2098 .assign_vif_chanctx = mt76_assign_vif_chanctx,
2099 .unassign_vif_chanctx = mt76_unassign_vif_chanctx,
2100 .switch_vif_chanctx = mt76_switch_vif_chanctx,
2101 .tx = mt7996_tx,
2102 .start = mt7996_start,
2103 .stop = mt7996_stop,
2104 .add_interface = mt7996_add_interface,
2105 .remove_interface = mt7996_remove_interface,
2106 .config = mt7996_config,
2107 .conf_tx = mt7996_conf_tx,
2108 .configure_filter = mt7996_configure_filter,
2109 .vif_cfg_changed = mt7996_vif_cfg_changed,
2110 .link_info_changed = mt7996_link_info_changed,
2111 .sta_state = mt7996_sta_state,
2112 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
2113 .link_sta_rc_update = mt7996_link_sta_rc_update,
2114 .set_key = mt7996_set_key,
2115 .ampdu_action = mt7996_ampdu_action,
2116 .set_rts_threshold = mt7996_set_rts_threshold,
2117 .wake_tx_queue = mt76_wake_tx_queue,
2118 .hw_scan = mt76_hw_scan,
2119 .cancel_hw_scan = mt76_cancel_hw_scan,
2120 .remain_on_channel = mt76_remain_on_channel,
2121 .cancel_remain_on_channel = mt76_cancel_remain_on_channel,
2122 .release_buffered_frames = mt76_release_buffered_frames,
2123 .get_txpower = mt7996_get_txpower,
2124 .channel_switch_beacon = mt7996_channel_switch_beacon,
2125 .get_stats = mt7996_get_stats,
2126 .get_et_sset_count = mt7996_get_et_sset_count,
2127 .get_et_stats = mt7996_get_et_stats,
2128 .get_et_strings = mt7996_get_et_strings,
2129 .get_tsf = mt7996_get_tsf,
2130 .set_tsf = mt7996_set_tsf,
2131 .offset_tsf = mt7996_offset_tsf,
2132 .get_survey = mt76_get_survey,
2133 .get_antenna = mt76_get_antenna,
2134 .set_antenna = mt7996_set_antenna,
2135 .set_bitrate_mask = mt7996_set_bitrate_mask,
2136 .set_coverage_class = mt7996_set_coverage_class,
2137 .sta_statistics = mt7996_sta_statistics,
2138 .sta_set_4addr = mt7996_sta_set_4addr,
2139 .sta_set_decap_offload = mt7996_sta_set_decap_offload,
2140 .add_twt_setup = mt7996_mac_add_twt_setup,
2141 .twt_teardown_request = mt7996_twt_teardown_request,
2142 #ifdef CONFIG_MAC80211_DEBUGFS
2143 .sta_add_debugfs = mt7996_sta_add_debugfs,
2144 #endif
2145 .set_radar_background = mt7996_set_radar_background,
2146 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
2147 .net_fill_forward_path = mt7996_net_fill_forward_path,
2148 .net_setup_tc = mt76_wed_net_setup_tc,
2149 #endif
2150 .change_vif_links = mt7996_change_vif_links,
2151 .change_sta_links = mt7996_mac_sta_change_links,
2152 };
2153