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;
72
73 if (!phy || !test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
74 return;
75
76 dev = phy->dev;
77
78 cancel_delayed_work_sync(&phy->mt76->mac_work);
79
80 mutex_lock(&dev->mt76.mutex);
81
82 mt7996_mcu_set_radio_en(phy, false);
83
84 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
85
86 mutex_unlock(&dev->mt76.mutex);
87 }
88
mt7996_stop(struct ieee80211_hw * hw,bool suspend)89 static void mt7996_stop(struct ieee80211_hw *hw, bool suspend)
90 {
91 }
92
get_free_idx(u32 mask,u8 start,u8 end)93 static inline int get_free_idx(u32 mask, u8 start, u8 end)
94 {
95 return ffs(~mask & GENMASK(end, start));
96 }
97
get_omac_idx(enum nl80211_iftype type,u64 mask)98 static int get_omac_idx(enum nl80211_iftype type, u64 mask)
99 {
100 int i;
101
102 switch (type) {
103 case NL80211_IFTYPE_MESH_POINT:
104 case NL80211_IFTYPE_ADHOC:
105 case NL80211_IFTYPE_STATION:
106 /* prefer hw bssid slot 1-3 */
107 i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3);
108 if (i)
109 return i - 1;
110
111 if (type != NL80211_IFTYPE_STATION)
112 break;
113
114 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
115 if (i)
116 return i - 1;
117
118 if (~mask & BIT(HW_BSSID_0))
119 return HW_BSSID_0;
120
121 break;
122 case NL80211_IFTYPE_MONITOR:
123 case NL80211_IFTYPE_AP:
124 /* ap uses hw bssid 0 and ext bssid */
125 if (~mask & BIT(HW_BSSID_0))
126 return HW_BSSID_0;
127
128 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
129 if (i)
130 return i - 1;
131
132 break;
133 default:
134 WARN_ON(1);
135 break;
136 }
137
138 return -1;
139 }
140
141 static void
mt7996_init_bitrate_mask(struct ieee80211_vif * vif,struct mt7996_vif_link * mlink)142 mt7996_init_bitrate_mask(struct ieee80211_vif *vif, struct mt7996_vif_link *mlink)
143 {
144 int i;
145
146 for (i = 0; i < ARRAY_SIZE(mlink->bitrate_mask.control); i++) {
147 mlink->bitrate_mask.control[i].gi = NL80211_TXRATE_DEFAULT_GI;
148 mlink->bitrate_mask.control[i].he_gi = 0xff;
149 mlink->bitrate_mask.control[i].he_ltf = 0xff;
150 mlink->bitrate_mask.control[i].legacy = GENMASK(31, 0);
151 memset(mlink->bitrate_mask.control[i].ht_mcs, 0xff,
152 sizeof(mlink->bitrate_mask.control[i].ht_mcs));
153 memset(mlink->bitrate_mask.control[i].vht_mcs, 0xff,
154 sizeof(mlink->bitrate_mask.control[i].vht_mcs));
155 memset(mlink->bitrate_mask.control[i].he_mcs, 0xff,
156 sizeof(mlink->bitrate_mask.control[i].he_mcs));
157 }
158 }
159
160 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)161 mt7996_set_hw_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
162 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
163 struct ieee80211_key_conf *key)
164 {
165 struct mt7996_dev *dev = mt7996_hw_dev(hw);
166 int idx = key->keyidx;
167 unsigned int link_id;
168 unsigned long links;
169
170 if (key->link_id >= 0)
171 links = BIT(key->link_id);
172 else if (sta && sta->valid_links)
173 links = sta->valid_links;
174 else if (vif->valid_links)
175 links = vif->valid_links;
176 else
177 links = BIT(0);
178
179 for_each_set_bit(link_id, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
180 struct mt7996_sta_link *msta_link;
181 struct mt7996_vif_link *link;
182 u8 *wcid_keyidx;
183 int err;
184
185 link = mt7996_vif_link(dev, vif, link_id);
186 if (!link)
187 continue;
188
189 if (sta) {
190 struct mt7996_sta *msta;
191
192 msta = (struct mt7996_sta *)sta->drv_priv;
193 msta_link = mt76_dereference(msta->link[link_id],
194 &dev->mt76);
195 if (!msta_link)
196 continue;
197
198 if (!msta_link->wcid.sta)
199 return -EOPNOTSUPP;
200 } else {
201 msta_link = &link->msta_link;
202 }
203 wcid_keyidx = &msta_link->wcid.hw_key_idx;
204
205 switch (key->cipher) {
206 case WLAN_CIPHER_SUITE_AES_CMAC:
207 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
208 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
209 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
210 if (key->keyidx == 6 || key->keyidx == 7) {
211 wcid_keyidx = &msta_link->wcid.hw_key_idx2;
212 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
213 }
214 break;
215 default:
216 break;
217 }
218
219 if (cmd == SET_KEY && !sta && !link->mt76.cipher) {
220 struct ieee80211_bss_conf *link_conf;
221
222 link_conf = link_conf_dereference_protected(vif,
223 link_id);
224 if (!link_conf)
225 link_conf = &vif->bss_conf;
226
227 link->mt76.cipher =
228 mt76_connac_mcu_get_cipher(key->cipher);
229 mt7996_mcu_add_bss_info(link->phy, vif, link_conf,
230 &link->mt76, msta_link, true);
231 }
232
233 if (cmd == SET_KEY) {
234 *wcid_keyidx = idx;
235 } else {
236 if (idx == *wcid_keyidx)
237 *wcid_keyidx = -1;
238 continue;
239 }
240
241 mt76_wcid_key_setup(&dev->mt76, &msta_link->wcid, key);
242
243 if (key->keyidx == 6 || key->keyidx == 7) {
244 err = mt7996_mcu_bcn_prot_enable(dev, link,
245 msta_link, key);
246 if (err)
247 return err;
248 }
249
250 err = mt7996_mcu_add_key(&dev->mt76, vif, key,
251 MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
252 &msta_link->wcid, cmd);
253 if (err)
254 return err;
255 }
256
257 return 0;
258 }
259
260 static void
mt7996_key_iter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * data)261 mt7996_key_iter(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
262 struct ieee80211_sta *sta, struct ieee80211_key_conf *key,
263 void *data)
264 {
265 if (sta)
266 return;
267
268 WARN_ON(mt7996_set_hw_key(hw, SET_KEY, vif, NULL, key));
269 }
270
mt7996_vif_link_add(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct mt76_vif_link * mlink)271 int mt7996_vif_link_add(struct mt76_phy *mphy, struct ieee80211_vif *vif,
272 struct ieee80211_bss_conf *link_conf,
273 struct mt76_vif_link *mlink)
274 {
275 struct mt7996_vif_link *link = container_of(mlink, struct mt7996_vif_link, mt76);
276 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
277 struct mt7996_sta_link *msta_link = &link->msta_link;
278 struct mt7996_phy *phy = mphy->priv;
279 struct mt7996_dev *dev = phy->dev;
280 u8 band_idx = phy->mt76->band_idx;
281 struct mt76_txq *mtxq;
282 int idx, ret;
283
284 mlink->idx = __ffs64(~dev->mt76.vif_mask);
285 if (mlink->idx >= mt7996_max_interface_num(dev))
286 return -ENOSPC;
287
288 idx = get_omac_idx(vif->type, phy->omac_mask);
289 if (idx < 0)
290 return -ENOSPC;
291
292 link->phy = phy;
293 mlink->omac_idx = idx;
294 mlink->band_idx = band_idx;
295 mlink->wmm_idx = vif->type == NL80211_IFTYPE_AP ? 0 : 3;
296 mlink->wcid = &msta_link->wcid;
297 mlink->wcid->offchannel = mlink->offchannel;
298
299 ret = mt7996_mcu_add_dev_info(phy, vif, link_conf, mlink, true);
300 if (ret)
301 return ret;
302
303 dev->mt76.vif_mask |= BIT_ULL(mlink->idx);
304 phy->omac_mask |= BIT_ULL(mlink->omac_idx);
305
306 idx = MT7996_WTBL_RESERVED - mlink->idx;
307
308 INIT_LIST_HEAD(&msta_link->rc_list);
309 msta_link->wcid.idx = idx;
310 msta_link->wcid.link_id = link_conf->link_id;
311 msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET;
312 mt76_wcid_init(&msta_link->wcid, band_idx);
313
314 mt7996_mac_wtbl_update(dev, idx,
315 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
316
317 if (vif->txq) {
318 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
319 mtxq->wcid = idx;
320 }
321
322 if (vif->type != NL80211_IFTYPE_AP &&
323 (!mlink->omac_idx || mlink->omac_idx > 3))
324 vif->offload_flags = 0;
325
326 if (phy->mt76->chandef.chan->band != NL80211_BAND_2GHZ)
327 mlink->basic_rates_idx = MT7996_BASIC_RATES_TBL + 4;
328 else
329 mlink->basic_rates_idx = MT7996_BASIC_RATES_TBL;
330
331 mt7996_init_bitrate_mask(vif, link);
332
333 mt7996_mcu_add_bss_info(phy, vif, link_conf, mlink, msta_link, true);
334 /* defer the first STA_REC of BMC entry to BSS_CHANGED_BSSID for STA
335 * interface, since firmware only records BSSID when the entry is new
336 */
337 if (vif->type != NL80211_IFTYPE_STATION)
338 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
339 CONN_STATE_PORT_SECURE, true);
340 rcu_assign_pointer(dev->mt76.wcid[idx], &msta_link->wcid);
341
342 ieee80211_iter_keys(mphy->hw, vif, mt7996_key_iter, NULL);
343
344 if (mvif->mt76.deflink_id == IEEE80211_LINK_UNSPECIFIED)
345 mvif->mt76.deflink_id = link_conf->link_id;
346
347 return 0;
348 }
349
mt7996_vif_link_remove(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct mt76_vif_link * mlink)350 void mt7996_vif_link_remove(struct mt76_phy *mphy, struct ieee80211_vif *vif,
351 struct ieee80211_bss_conf *link_conf,
352 struct mt76_vif_link *mlink)
353 {
354 struct mt7996_vif_link *link = container_of(mlink, struct mt7996_vif_link, mt76);
355 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
356 struct mt7996_sta_link *msta_link = &link->msta_link;
357 struct mt7996_phy *phy = mphy->priv;
358 struct mt7996_dev *dev = phy->dev;
359 int idx = msta_link->wcid.idx;
360
361 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
362 CONN_STATE_DISCONNECT, false);
363 mt7996_mcu_add_bss_info(phy, vif, link_conf, mlink, msta_link, false);
364
365 mt7996_mcu_add_dev_info(phy, vif, link_conf, mlink, false);
366
367 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
368
369 if (mvif->mt76.deflink_id == link_conf->link_id) {
370 struct ieee80211_bss_conf *iter;
371 unsigned int link_id;
372
373 mvif->mt76.deflink_id = IEEE80211_LINK_UNSPECIFIED;
374 for_each_vif_active_link(vif, iter, link_id) {
375 if (link_id != IEEE80211_LINK_UNSPECIFIED) {
376 mvif->mt76.deflink_id = link_id;
377 break;
378 }
379 }
380 }
381
382 dev->mt76.vif_mask &= ~BIT_ULL(mlink->idx);
383 phy->omac_mask &= ~BIT_ULL(mlink->omac_idx);
384
385 spin_lock_bh(&dev->mt76.sta_poll_lock);
386 if (!list_empty(&msta_link->wcid.poll_list))
387 list_del_init(&msta_link->wcid.poll_list);
388 spin_unlock_bh(&dev->mt76.sta_poll_lock);
389
390 mt76_wcid_cleanup(&dev->mt76, &msta_link->wcid);
391 }
392
mt7996_phy_set_rxfilter(struct mt7996_phy * phy)393 static void mt7996_phy_set_rxfilter(struct mt7996_phy *phy)
394 {
395 struct mt7996_dev *dev = phy->dev;
396 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK |
397 MT_WF_RFCR1_DROP_BF_POLL |
398 MT_WF_RFCR1_DROP_BA |
399 MT_WF_RFCR1_DROP_CFEND |
400 MT_WF_RFCR1_DROP_CFACK;
401 u32 filter = phy->rxfilter;
402
403 if (filter & MT_WF_RFCR_DROP_OTHER_UC) {
404 filter |= MT_WF_RFCR_DROP_CTS |
405 MT_WF_RFCR_DROP_RTS |
406 MT_WF_RFCR_DROP_CTL_RSV |
407 MT_WF_RFCR_DROP_FCSFAIL;
408 }
409
410 mt76_wr(dev, MT_WF_RFCR(phy->mt76->band_idx), filter);
411 if (filter & MT_WF_RFCR_DROP_CTL_RSV)
412 mt76_set(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
413 else
414 mt76_clear(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
415 }
416
mt7996_set_monitor(struct mt7996_phy * phy,bool enabled)417 static void mt7996_set_monitor(struct mt7996_phy *phy, bool enabled)
418 {
419 struct mt7996_dev *dev;
420
421 if (!phy)
422 return;
423
424 dev = phy->dev;
425
426 if (enabled == !(phy->rxfilter & MT_WF_RFCR_DROP_OTHER_UC))
427 return;
428
429 if (!enabled)
430 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
431 else
432 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
433
434 mt76_rmw_field(dev, MT_DMA_DCR0(phy->mt76->band_idx),
435 MT_DMA_DCR0_RXD_G5_EN, enabled);
436 mt7996_phy_set_rxfilter(phy);
437 mt7996_mcu_set_sniffer_mode(phy, enabled);
438 }
439
mt7996_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)440 static int mt7996_add_interface(struct ieee80211_hw *hw,
441 struct ieee80211_vif *vif)
442 {
443 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
444 struct wireless_dev *wdev = ieee80211_vif_to_wdev(vif);
445 struct mt7996_dev *dev = mt7996_hw_dev(hw);
446 int i, err = 0;
447
448 mutex_lock(&dev->mt76.mutex);
449
450 for (i = 0; i < MT7996_MAX_RADIOS; i++) {
451 struct mt7996_phy *phy = dev->radio_phy[i];
452
453 if (!phy || !(wdev->radio_mask & BIT(i)) ||
454 test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
455 continue;
456
457 err = mt7996_run(phy);
458 if (err)
459 goto out;
460
461 if (vif->type == NL80211_IFTYPE_MONITOR)
462 mt7996_set_monitor(phy, true);
463 }
464
465 mt76_vif_init(vif, &mvif->mt76);
466
467 vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR;
468 mvif->mt76.deflink_id = IEEE80211_LINK_UNSPECIFIED;
469
470 out:
471 mutex_unlock(&dev->mt76.mutex);
472
473 return err;
474 }
475
476 struct mt7996_radio_data {
477 u32 active_mask;
478 u32 monitor_mask;
479 };
480
mt7996_remove_iter(void * data,u8 * mac,struct ieee80211_vif * vif)481 static void mt7996_remove_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
482 {
483 struct wireless_dev *wdev = ieee80211_vif_to_wdev(vif);
484 struct mt7996_radio_data *rdata = data;
485
486 rdata->active_mask |= wdev->radio_mask;
487 if (vif->type == NL80211_IFTYPE_MONITOR)
488 rdata->monitor_mask |= wdev->radio_mask;
489 }
490
mt7996_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)491 static void mt7996_remove_interface(struct ieee80211_hw *hw,
492 struct ieee80211_vif *vif)
493 {
494 struct mt7996_dev *dev = mt7996_hw_dev(hw);
495 struct mt7996_radio_data rdata = {};
496 int i;
497
498 ieee80211_iterate_active_interfaces_mtx(hw, 0, mt7996_remove_iter,
499 &rdata);
500 mt76_vif_cleanup(&dev->mt76, vif);
501
502 for (i = 0; i < MT7996_MAX_RADIOS; i++) {
503 struct mt7996_phy *phy = dev->radio_phy[i];
504
505 if (!phy)
506 continue;
507 if (!(rdata.monitor_mask & BIT(i)))
508 mt7996_set_monitor(phy, false);
509 if (!(rdata.active_mask & BIT(i)))
510 mt7996_stop_phy(phy);
511 }
512 }
513
mt7996_set_channel(struct mt76_phy * mphy)514 int mt7996_set_channel(struct mt76_phy *mphy)
515 {
516 struct mt7996_phy *phy = mphy->priv;
517 int ret;
518
519 ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_SWITCH);
520 if (ret)
521 goto out;
522
523 ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_RX_PATH);
524 if (ret)
525 goto out;
526
527 ret = mt7996_mcu_set_txpower_sku(phy);
528 if (ret)
529 goto out;
530
531 ret = mt7996_dfs_init_radar_detector(phy);
532 mt7996_mac_cca_stats_reset(phy);
533
534 mt7996_mac_reset_counters(phy);
535 phy->noise = 0;
536
537 out:
538 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
539 MT7996_WATCHDOG_TIME);
540
541 return ret;
542 }
543
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)544 static int mt7996_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
545 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
546 struct ieee80211_key_conf *key)
547 {
548 struct mt7996_dev *dev = mt7996_hw_dev(hw);
549 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
550 int err;
551
552 /* The hardware does not support per-STA RX GTK, fallback
553 * to software mode for these.
554 */
555 if ((vif->type == NL80211_IFTYPE_ADHOC ||
556 vif->type == NL80211_IFTYPE_MESH_POINT) &&
557 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
558 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
559 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
560 return -EOPNOTSUPP;
561
562 /* fall back to sw encryption for unsupported ciphers */
563 switch (key->cipher) {
564 case WLAN_CIPHER_SUITE_TKIP:
565 case WLAN_CIPHER_SUITE_CCMP:
566 case WLAN_CIPHER_SUITE_CCMP_256:
567 case WLAN_CIPHER_SUITE_GCMP:
568 case WLAN_CIPHER_SUITE_GCMP_256:
569 case WLAN_CIPHER_SUITE_SMS4:
570 break;
571 case WLAN_CIPHER_SUITE_AES_CMAC:
572 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
573 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
574 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
575 if (key->keyidx == 6 || key->keyidx == 7)
576 break;
577 fallthrough;
578 case WLAN_CIPHER_SUITE_WEP40:
579 case WLAN_CIPHER_SUITE_WEP104:
580 default:
581 return -EOPNOTSUPP;
582 }
583
584 if (!mt7996_vif_link_phy(&mvif->deflink))
585 return 0; /* defer until after link add */
586
587 mutex_lock(&dev->mt76.mutex);
588 err = mt7996_set_hw_key(hw, cmd, vif, sta, key);
589 mutex_unlock(&dev->mt76.mutex);
590
591 return err;
592 }
593
mt7996_config(struct ieee80211_hw * hw,u32 changed)594 static int mt7996_config(struct ieee80211_hw *hw, u32 changed)
595 {
596 return 0;
597 }
598
599 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)600 mt7996_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
601 unsigned int link_id, u16 queue,
602 const struct ieee80211_tx_queue_params *params)
603 {
604 struct mt7996_dev *dev = mt7996_hw_dev(hw);
605 struct mt7996_vif_link *mlink = mt7996_vif_link(dev, vif, link_id);
606 static const u8 mq_to_aci[] = {
607 [IEEE80211_AC_VO] = 3,
608 [IEEE80211_AC_VI] = 2,
609 [IEEE80211_AC_BE] = 0,
610 [IEEE80211_AC_BK] = 1,
611 };
612
613 /* firmware uses access class index */
614 mlink->queue_params[mq_to_aci[queue]] = *params;
615 /* no need to update right away, we'll get BSS_CHANGED_QOS */
616
617 return 0;
618 }
619
mt7996_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)620 static void mt7996_configure_filter(struct ieee80211_hw *hw,
621 unsigned int changed_flags,
622 unsigned int *total_flags,
623 u64 multicast)
624 {
625 struct mt7996_dev *dev = mt7996_hw_dev(hw);
626 struct mt7996_phy *phy;
627 u32 filter_mask = 0, filter_set = 0;
628 u32 flags = 0;
629
630 #define MT76_FILTER(_flag, _hw) do { \
631 flags |= *total_flags & FIF_##_flag; \
632 filter_mask |= (_hw); \
633 filter_set |= !(flags & FIF_##_flag) * (_hw); \
634 } while (0)
635
636 mutex_lock(&dev->mt76.mutex);
637
638 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
639 MT_WF_RFCR_DROP_A3_MAC |
640 MT_WF_RFCR_DROP_A3_BSSID);
641
642 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
643
644 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
645 MT_WF_RFCR_DROP_RTS |
646 MT_WF_RFCR_DROP_CTL_RSV);
647
648 *total_flags = flags;
649
650 mt7996_for_each_phy(dev, phy) {
651 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
652 MT_WF_RFCR_DROP_OTHER_BEACON |
653 MT_WF_RFCR_DROP_FRAME_REPORT |
654 MT_WF_RFCR_DROP_PROBEREQ |
655 MT_WF_RFCR_DROP_MCAST_FILTERED |
656 MT_WF_RFCR_DROP_MCAST |
657 MT_WF_RFCR_DROP_BCAST |
658 MT_WF_RFCR_DROP_DUPLICATE |
659 MT_WF_RFCR_DROP_A2_BSSID |
660 MT_WF_RFCR_DROP_UNWANTED_CTL |
661 MT_WF_RFCR_DROP_STBC_MULTI |
662 filter_mask);
663 phy->rxfilter |= filter_set;
664 mt7996_phy_set_rxfilter(phy);
665 }
666
667 mutex_unlock(&dev->mt76.mutex);
668 }
669
670 static int
mt7996_get_txpower(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,int * dbm)671 mt7996_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
672 unsigned int link_id, int *dbm)
673 {
674 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
675 struct mt7996_phy *phy = mt7996_vif_link_phy(&mvif->deflink);
676 struct mt7996_dev *dev = mt7996_hw_dev(hw);
677 struct wireless_dev *wdev;
678 int n_chains, delta, i;
679
680 if (!phy) {
681 wdev = ieee80211_vif_to_wdev(vif);
682 for (i = 0; i < hw->wiphy->n_radio; i++)
683 if (wdev->radio_mask & BIT(i))
684 phy = dev->radio_phy[i];
685
686 if (!phy)
687 return -EINVAL;
688 }
689
690 n_chains = hweight16(phy->mt76->chainmask);
691 delta = mt76_tx_power_path_delta(n_chains);
692 *dbm = DIV_ROUND_UP(phy->mt76->txpower_cur + delta, 2);
693
694 return 0;
695 }
696
697 static u8
mt7996_get_rates_table(struct mt7996_phy * phy,struct ieee80211_bss_conf * conf,bool beacon,bool mcast)698 mt7996_get_rates_table(struct mt7996_phy *phy, struct ieee80211_bss_conf *conf,
699 bool beacon, bool mcast)
700 {
701 struct mt7996_dev *dev = phy->dev;
702 struct mt76_vif_link *mvif = mt76_vif_conf_link(&dev->mt76, conf->vif, conf);
703 u16 rate;
704 u8 i, idx;
705
706 rate = mt76_connac2_mac_tx_rate_val(phy->mt76, conf, beacon, mcast);
707
708 if (beacon) {
709 /* odd index for driver, even index for firmware */
710 idx = MT7996_BEACON_RATES_TBL + 2 * phy->mt76->band_idx;
711 if (phy->beacon_rate != rate)
712 mt7996_mcu_set_fixed_rate_table(phy, idx, rate, beacon);
713
714 return idx;
715 }
716
717 idx = FIELD_GET(MT_TX_RATE_IDX, rate);
718 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
719 if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
720 return MT7996_BASIC_RATES_TBL + 2 * i;
721
722 return mvif->basic_rates_idx;
723 }
724
725 static void
mt7996_update_mu_group(struct ieee80211_hw * hw,struct mt7996_vif_link * link,struct ieee80211_bss_conf * info)726 mt7996_update_mu_group(struct ieee80211_hw *hw, struct mt7996_vif_link *link,
727 struct ieee80211_bss_conf *info)
728 {
729 struct mt7996_dev *dev = mt7996_hw_dev(hw);
730 u8 band = link->mt76.band_idx;
731 u32 *mu;
732
733 mu = (u32 *)info->mu_group.membership;
734 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD0(band), mu[0]);
735 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD1(band), mu[1]);
736
737 mu = (u32 *)info->mu_group.position;
738 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS0(band), mu[0]);
739 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS1(band), mu[1]);
740 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS2(band), mu[2]);
741 mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS3(band), mu[3]);
742 }
743
744 static void
mt7996_vif_cfg_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 changed)745 mt7996_vif_cfg_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
746 u64 changed)
747 {
748 struct mt7996_dev *dev = mt7996_hw_dev(hw);
749
750 mutex_lock(&dev->mt76.mutex);
751
752 if ((changed & BSS_CHANGED_ASSOC) && vif->cfg.assoc) {
753 struct ieee80211_bss_conf *link_conf;
754 unsigned long link_id;
755
756 for_each_vif_active_link(vif, link_conf, link_id) {
757 struct mt7996_vif_link *link;
758
759 link = mt7996_vif_link(dev, vif, link_id);
760 if (!link)
761 continue;
762
763 if (!link->phy)
764 continue;
765
766 mt7996_mcu_add_bss_info(link->phy, vif, link_conf,
767 &link->mt76, &link->msta_link,
768 true);
769 mt7996_mcu_add_sta(dev, link_conf, NULL, link, NULL,
770 CONN_STATE_PORT_SECURE,
771 !!(changed & BSS_CHANGED_BSSID));
772 }
773 }
774
775 mutex_unlock(&dev->mt76.mutex);
776 }
777
778 static void
mt7996_link_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)779 mt7996_link_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
780 struct ieee80211_bss_conf *info, u64 changed)
781 {
782 struct mt7996_dev *dev = mt7996_hw_dev(hw);
783 struct mt7996_vif_link *link;
784 struct mt7996_phy *phy;
785 struct mt76_phy *mphy;
786
787 mutex_lock(&dev->mt76.mutex);
788
789 link = mt7996_vif_conf_link(dev, vif, info);
790 if (!link)
791 goto out;
792
793 mphy = mt76_vif_link_phy(&link->mt76);
794 if (!mphy)
795 goto out;
796
797 phy = mphy->priv;
798
799 /* station mode uses BSSID to map the wlan entry to a peer,
800 * and then peer references bss_info_rfch to set bandwidth cap.
801 */
802 if ((changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid)) ||
803 (changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon)) {
804 mt7996_mcu_add_bss_info(phy, vif, info, &link->mt76,
805 &link->msta_link, true);
806 mt7996_mcu_add_sta(dev, info, NULL, link, NULL,
807 CONN_STATE_PORT_SECURE,
808 !!(changed & BSS_CHANGED_BSSID));
809 }
810
811 if (changed & BSS_CHANGED_ERP_SLOT) {
812 int slottime = info->use_short_slot ? 9 : 20;
813
814 if (slottime != phy->slottime) {
815 phy->slottime = slottime;
816 mt7996_mcu_set_timing(phy, vif, info);
817 }
818 }
819
820 if (changed & BSS_CHANGED_MCAST_RATE)
821 link->mt76.mcast_rates_idx =
822 mt7996_get_rates_table(phy, info, false, true);
823
824 if (changed & BSS_CHANGED_BASIC_RATES)
825 link->mt76.basic_rates_idx =
826 mt7996_get_rates_table(phy, info, false, false);
827
828 /* ensure that enable txcmd_mode after bss_info */
829 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
830 mt7996_mcu_set_tx(dev, vif, info);
831
832 if (changed & BSS_CHANGED_HE_OBSS_PD)
833 mt7996_mcu_add_obss_spr(phy, link, &info->he_obss_pd);
834
835 if (changed & BSS_CHANGED_HE_BSS_COLOR) {
836 if ((vif->type == NL80211_IFTYPE_AP &&
837 link->mt76.omac_idx <= HW_BSSID_MAX) ||
838 vif->type == NL80211_IFTYPE_STATION)
839 mt7996_mcu_update_bss_color(dev, &link->mt76,
840 &info->he_bss_color);
841 }
842
843 if (changed & (BSS_CHANGED_BEACON |
844 BSS_CHANGED_BEACON_ENABLED)) {
845 link->mt76.beacon_rates_idx =
846 mt7996_get_rates_table(phy, info, true, false);
847
848 mt7996_mcu_add_beacon(hw, vif, info);
849 }
850
851 if (changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP |
852 BSS_CHANGED_FILS_DISCOVERY))
853 mt7996_mcu_beacon_inband_discov(dev, info, link, changed);
854
855 if (changed & BSS_CHANGED_MU_GROUPS)
856 mt7996_update_mu_group(hw, link, info);
857
858 if (changed & BSS_CHANGED_TXPOWER &&
859 info->txpower != phy->txpower) {
860 phy->txpower = info->txpower;
861 mt7996_mcu_set_txpower_sku(phy);
862 }
863
864 out:
865 mutex_unlock(&dev->mt76.mutex);
866 }
867
868 static void
mt7996_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)869 mt7996_channel_switch_beacon(struct ieee80211_hw *hw,
870 struct ieee80211_vif *vif,
871 struct cfg80211_chan_def *chandef)
872 {
873 struct mt7996_dev *dev = mt7996_hw_dev(hw);
874
875 mutex_lock(&dev->mt76.mutex);
876 mt7996_mcu_add_beacon(hw, vif, &vif->bss_conf);
877 mutex_unlock(&dev->mt76.mutex);
878 }
879
880 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)881 mt7996_mac_sta_init_link(struct mt7996_dev *dev,
882 struct ieee80211_bss_conf *link_conf,
883 struct ieee80211_link_sta *link_sta,
884 struct mt7996_vif_link *link, unsigned int link_id)
885 {
886 struct ieee80211_sta *sta = link_sta->sta;
887 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
888 struct mt7996_phy *phy = link->phy;
889 struct mt7996_sta_link *msta_link;
890 int idx;
891
892 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
893 if (idx < 0)
894 return -ENOSPC;
895
896 if (msta->deflink_id == IEEE80211_LINK_UNSPECIFIED) {
897 int i;
898
899 msta_link = &msta->deflink;
900 msta->deflink_id = link_id;
901
902 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
903 struct mt76_txq *mtxq;
904
905 if (!sta->txq[i])
906 continue;
907
908 mtxq = (struct mt76_txq *)sta->txq[i]->drv_priv;
909 mtxq->wcid = idx;
910 }
911 } else {
912 msta_link = kzalloc(sizeof(*msta_link), GFP_KERNEL);
913 if (!msta_link)
914 return -ENOMEM;
915 }
916
917 INIT_LIST_HEAD(&msta_link->rc_list);
918 INIT_LIST_HEAD(&msta_link->wcid.poll_list);
919 msta_link->sta = msta;
920 msta_link->wcid.sta = 1;
921 msta_link->wcid.idx = idx;
922 msta_link->wcid.link_id = link_id;
923
924 ewma_avg_signal_init(&msta_link->avg_ack_signal);
925 ewma_signal_init(&msta_link->wcid.rssi);
926
927 rcu_assign_pointer(msta->link[link_id], msta_link);
928
929 mt7996_mac_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
930 mt7996_mcu_add_sta(dev, link_conf, link_sta, link, msta_link,
931 CONN_STATE_DISCONNECT, true);
932
933 rcu_assign_pointer(dev->mt76.wcid[idx], &msta_link->wcid);
934 mt76_wcid_init(&msta_link->wcid, phy->mt76->band_idx);
935
936 return 0;
937 }
938
939 static void
mt7996_mac_sta_deinit_link(struct mt7996_dev * dev,struct mt7996_sta_link * msta_link)940 mt7996_mac_sta_deinit_link(struct mt7996_dev *dev,
941 struct mt7996_sta_link *msta_link)
942 {
943 int i;
944
945 for (i = 0; i < ARRAY_SIZE(msta_link->wcid.aggr); i++)
946 mt76_rx_aggr_stop(&dev->mt76, &msta_link->wcid, i);
947
948 mt7996_mac_wtbl_update(dev, msta_link->wcid.idx,
949 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
950
951 spin_lock_bh(&dev->mt76.sta_poll_lock);
952 if (!list_empty(&msta_link->wcid.poll_list))
953 list_del_init(&msta_link->wcid.poll_list);
954 if (!list_empty(&msta_link->rc_list))
955 list_del_init(&msta_link->rc_list);
956 spin_unlock_bh(&dev->mt76.sta_poll_lock);
957
958 mt76_wcid_cleanup(&dev->mt76, &msta_link->wcid);
959 mt76_wcid_mask_clear(dev->mt76.wcid_mask, msta_link->wcid.idx);
960 }
961
962 static void
mt7996_mac_sta_remove_links(struct mt7996_dev * dev,struct ieee80211_sta * sta,unsigned long links)963 mt7996_mac_sta_remove_links(struct mt7996_dev *dev, struct ieee80211_sta *sta,
964 unsigned long links)
965 {
966 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
967 struct mt76_dev *mdev = &dev->mt76;
968 unsigned int link_id;
969
970 for_each_set_bit(link_id, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
971 struct mt7996_sta_link *msta_link = NULL;
972
973 msta_link = rcu_replace_pointer(msta->link[link_id], msta_link,
974 lockdep_is_held(&mdev->mutex));
975 if (!msta_link)
976 continue;
977
978 mt7996_mac_sta_deinit_link(dev, msta_link);
979 if (msta->deflink_id == link_id) {
980 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
981 continue;
982 }
983
984 kfree_rcu(msta_link, rcu_head);
985 }
986 }
987
988 static int
mt7996_mac_sta_add_links(struct mt7996_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,unsigned long new_links)989 mt7996_mac_sta_add_links(struct mt7996_dev *dev, struct ieee80211_vif *vif,
990 struct ieee80211_sta *sta, unsigned long new_links)
991 {
992 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
993 unsigned int link_id;
994 int err = 0;
995
996 for_each_set_bit(link_id, &new_links, IEEE80211_MLD_MAX_NUM_LINKS) {
997 struct ieee80211_bss_conf *link_conf;
998 struct ieee80211_link_sta *link_sta;
999 struct mt7996_vif_link *link;
1000
1001 if (rcu_access_pointer(msta->link[link_id]))
1002 continue;
1003
1004 link_conf = link_conf_dereference_protected(vif, link_id);
1005 if (!link_conf) {
1006 err = -EINVAL;
1007 goto error_unlink;
1008 }
1009
1010 link = mt7996_vif_link(dev, vif, link_id);
1011 if (!link) {
1012 err = -EINVAL;
1013 goto error_unlink;
1014 }
1015
1016 link_sta = link_sta_dereference_protected(sta, link_id);
1017 if (!link_sta) {
1018 err = -EINVAL;
1019 goto error_unlink;
1020 }
1021
1022 err = mt7996_mac_sta_init_link(dev, link_conf, link_sta, link,
1023 link_id);
1024 if (err)
1025 goto error_unlink;
1026 }
1027
1028 return 0;
1029
1030 error_unlink:
1031 mt7996_mac_sta_remove_links(dev, sta, new_links);
1032
1033 return err;
1034 }
1035
1036 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)1037 mt7996_mac_sta_change_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1038 struct ieee80211_sta *sta, u16 old_links,
1039 u16 new_links)
1040 {
1041 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1042 unsigned long add = new_links & ~old_links;
1043 unsigned long rem = old_links & ~new_links;
1044 int ret;
1045
1046 mutex_lock(&dev->mt76.mutex);
1047
1048 mt7996_mac_sta_remove_links(dev, sta, rem);
1049 ret = mt7996_mac_sta_add_links(dev, vif, sta, add);
1050
1051 mutex_unlock(&dev->mt76.mutex);
1052
1053 return ret;
1054 }
1055
1056 static int
mt7996_mac_sta_add(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_sta * sta)1057 mt7996_mac_sta_add(struct mt76_phy *mphy, struct ieee80211_vif *vif,
1058 struct ieee80211_sta *sta)
1059 {
1060 struct mt76_dev *mdev = mphy->dev;
1061 struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
1062 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1063 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1064 unsigned long links = sta->mlo ? sta->valid_links : BIT(0);
1065 int err;
1066
1067 mutex_lock(&mdev->mutex);
1068
1069 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
1070 msta->vif = mvif;
1071 err = mt7996_mac_sta_add_links(dev, vif, sta, links);
1072 if (!err)
1073 mphy->num_sta++;
1074
1075 mutex_unlock(&mdev->mutex);
1076
1077 return err;
1078 }
1079
1080 static int
mt7996_mac_sta_event(struct mt7996_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum mt76_sta_event ev)1081 mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
1082 struct ieee80211_sta *sta, enum mt76_sta_event ev)
1083 {
1084 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1085 unsigned long links = sta->valid_links;
1086 struct ieee80211_link_sta *link_sta;
1087 unsigned int link_id;
1088
1089 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1090 struct ieee80211_bss_conf *link_conf;
1091 struct mt7996_sta_link *msta_link;
1092 struct mt7996_vif_link *link;
1093 int i, err;
1094
1095 link_conf = link_conf_dereference_protected(vif, link_id);
1096 if (!link_conf)
1097 continue;
1098
1099 link = mt7996_vif_link(dev, vif, link_id);
1100 if (!link)
1101 continue;
1102
1103 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1104 if (!msta_link)
1105 continue;
1106
1107 switch (ev) {
1108 case MT76_STA_EVENT_ASSOC:
1109 err = mt7996_mcu_add_sta(dev, link_conf, link_sta,
1110 link, msta_link,
1111 CONN_STATE_CONNECT, true);
1112 if (err)
1113 return err;
1114
1115 err = mt7996_mcu_add_rate_ctrl(dev, msta_link->sta, vif,
1116 link_id, false);
1117 if (err)
1118 return err;
1119
1120 msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET;
1121 msta_link->wcid.sta = 1;
1122 break;
1123 case MT76_STA_EVENT_AUTHORIZE:
1124 err = mt7996_mcu_add_sta(dev, link_conf, link_sta,
1125 link, msta_link,
1126 CONN_STATE_PORT_SECURE, false);
1127 if (err)
1128 return err;
1129 break;
1130 case MT76_STA_EVENT_DISASSOC:
1131 for (i = 0; i < ARRAY_SIZE(msta_link->twt.flow); i++)
1132 mt7996_mac_twt_teardown_flow(dev, link,
1133 msta_link, i);
1134
1135 if (sta->mlo && links == BIT(link_id)) /* last link */
1136 mt7996_mcu_teardown_mld_sta(dev, link,
1137 msta_link);
1138 else
1139 mt7996_mcu_add_sta(dev, link_conf, link_sta,
1140 link, msta_link,
1141 CONN_STATE_DISCONNECT, false);
1142 msta_link->wcid.sta_disabled = 1;
1143 msta_link->wcid.sta = 0;
1144 links = links & ~BIT(link_id);
1145 break;
1146 }
1147 }
1148
1149 return 0;
1150 }
1151
1152 static void
mt7996_mac_sta_remove(struct mt76_phy * mphy,struct ieee80211_vif * vif,struct ieee80211_sta * sta)1153 mt7996_mac_sta_remove(struct mt76_phy *mphy, struct ieee80211_vif *vif,
1154 struct ieee80211_sta *sta)
1155 {
1156 struct mt76_dev *mdev = mphy->dev;
1157 struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
1158 unsigned long links = sta->mlo ? sta->valid_links : BIT(0);
1159
1160 mutex_lock(&mdev->mutex);
1161
1162 mt7996_mac_sta_remove_links(dev, sta, links);
1163 mphy->num_sta--;
1164
1165 mutex_unlock(&mdev->mutex);
1166 }
1167
1168 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)1169 mt7996_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1170 struct ieee80211_sta *sta, enum ieee80211_sta_state old_state,
1171 enum ieee80211_sta_state new_state)
1172 {
1173 struct mt76_phy *mphy = mt76_vif_phy(hw, vif);
1174 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1175 enum mt76_sta_event ev;
1176
1177 if (!mphy)
1178 return -EINVAL;
1179
1180 if (old_state == IEEE80211_STA_NOTEXIST &&
1181 new_state == IEEE80211_STA_NONE)
1182 return mt7996_mac_sta_add(mphy, vif, sta);
1183
1184 if (old_state == IEEE80211_STA_NONE &&
1185 new_state == IEEE80211_STA_NOTEXIST)
1186 mt7996_mac_sta_remove(mphy, vif, sta);
1187
1188 if (old_state == IEEE80211_STA_AUTH &&
1189 new_state == IEEE80211_STA_ASSOC)
1190 ev = MT76_STA_EVENT_ASSOC;
1191 else if (old_state == IEEE80211_STA_ASSOC &&
1192 new_state == IEEE80211_STA_AUTHORIZED)
1193 ev = MT76_STA_EVENT_AUTHORIZE;
1194 else if (old_state == IEEE80211_STA_ASSOC &&
1195 new_state == IEEE80211_STA_AUTH)
1196 ev = MT76_STA_EVENT_DISASSOC;
1197 else
1198 return 0;
1199
1200 return mt7996_mac_sta_event(dev, vif, sta, ev);
1201 }
1202
mt7996_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)1203 static void mt7996_tx(struct ieee80211_hw *hw,
1204 struct ieee80211_tx_control *control,
1205 struct sk_buff *skb)
1206 {
1207 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1208 struct mt76_phy *mphy = hw->priv;
1209 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1210 struct ieee80211_vif *vif = info->control.vif;
1211 struct mt76_wcid *wcid = &dev->mt76.global_wcid;
1212 u8 link_id = u32_get_bits(info->control.flags,
1213 IEEE80211_TX_CTRL_MLO_LINK);
1214
1215 rcu_read_lock();
1216
1217 if (vif) {
1218 struct mt7996_vif *mvif = (void *)vif->drv_priv;
1219 struct mt76_vif_link *mlink;
1220
1221 mlink = rcu_dereference(mvif->mt76.link[link_id]);
1222 if (mlink && mlink->wcid)
1223 wcid = mlink->wcid;
1224
1225 if (mvif->mt76.roc_phy &&
1226 (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)) {
1227 mphy = mvif->mt76.roc_phy;
1228 if (mphy->roc_link)
1229 wcid = mphy->roc_link->wcid;
1230 } else {
1231 mphy = mt76_vif_link_phy(&mvif->deflink.mt76);
1232 }
1233 }
1234
1235 if (!mphy) {
1236 ieee80211_free_txskb(hw, skb);
1237 goto unlock;
1238 }
1239
1240 if (control->sta) {
1241 struct mt7996_sta *msta = (void *)control->sta->drv_priv;
1242 struct mt7996_sta_link *msta_link;
1243
1244 msta_link = rcu_dereference(msta->link[link_id]);
1245 if (msta_link)
1246 wcid = &msta_link->wcid;
1247 }
1248 mt76_tx(mphy, control->sta, wcid, skb);
1249 unlock:
1250 rcu_read_unlock();
1251 }
1252
mt7996_set_rts_threshold(struct ieee80211_hw * hw,u32 val)1253 static int mt7996_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
1254 {
1255 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1256 int i, ret = 0;
1257
1258 mutex_lock(&dev->mt76.mutex);
1259
1260 for (i = 0; i < hw->wiphy->n_radio; i++) {
1261 struct mt7996_phy *phy = dev->radio_phy[i];
1262
1263 ret = mt7996_mcu_set_rts_thresh(phy, val);
1264 if (ret)
1265 break;
1266 }
1267
1268 mutex_unlock(&dev->mt76.mutex);
1269
1270 return ret;
1271 }
1272
1273 static int
mt7996_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1274 mt7996_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1275 struct ieee80211_ampdu_params *params)
1276 {
1277 enum ieee80211_ampdu_mlme_action action = params->action;
1278 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1279 struct ieee80211_sta *sta = params->sta;
1280 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1281 struct ieee80211_txq *txq = sta->txq[params->tid];
1282 struct ieee80211_link_sta *link_sta;
1283 u16 tid = params->tid;
1284 u16 ssn = params->ssn;
1285 struct mt76_txq *mtxq;
1286 unsigned int link_id;
1287 int ret = 0;
1288
1289 if (!txq)
1290 return -EINVAL;
1291
1292 mtxq = (struct mt76_txq *)txq->drv_priv;
1293
1294 mutex_lock(&dev->mt76.mutex);
1295
1296 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1297 struct mt7996_sta_link *msta_link;
1298 struct mt7996_vif_link *link;
1299
1300 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1301 if (!msta_link)
1302 continue;
1303
1304 link = mt7996_vif_link(dev, vif, link_id);
1305 if (!link)
1306 continue;
1307
1308 switch (action) {
1309 case IEEE80211_AMPDU_RX_START:
1310 mt76_rx_aggr_start(&dev->mt76, &msta_link->wcid, tid,
1311 ssn, params->buf_size);
1312 ret = mt7996_mcu_add_rx_ba(dev, params, link, true);
1313 break;
1314 case IEEE80211_AMPDU_RX_STOP:
1315 mt76_rx_aggr_stop(&dev->mt76, &msta_link->wcid, tid);
1316 ret = mt7996_mcu_add_rx_ba(dev, params, link, false);
1317 break;
1318 case IEEE80211_AMPDU_TX_OPERATIONAL:
1319 mtxq->aggr = true;
1320 mtxq->send_bar = false;
1321 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1322 msta_link, true);
1323 break;
1324 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1325 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1326 mtxq->aggr = false;
1327 clear_bit(tid, &msta_link->wcid.ampdu_state);
1328 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1329 msta_link, false);
1330 break;
1331 case IEEE80211_AMPDU_TX_START:
1332 set_bit(tid, &msta_link->wcid.ampdu_state);
1333 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
1334 break;
1335 case IEEE80211_AMPDU_TX_STOP_CONT:
1336 mtxq->aggr = false;
1337 clear_bit(tid, &msta_link->wcid.ampdu_state);
1338 ret = mt7996_mcu_add_tx_ba(dev, params, link,
1339 msta_link, false);
1340 break;
1341 }
1342
1343 if (ret)
1344 break;
1345 }
1346
1347 if (action == IEEE80211_AMPDU_TX_STOP_CONT)
1348 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1349
1350 mutex_unlock(&dev->mt76.mutex);
1351
1352 return ret;
1353 }
1354
1355 static int
mt7996_get_stats(struct ieee80211_hw * hw,struct ieee80211_low_level_stats * stats)1356 mt7996_get_stats(struct ieee80211_hw *hw,
1357 struct ieee80211_low_level_stats *stats)
1358 {
1359 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1360 int i;
1361
1362 mutex_lock(&dev->mt76.mutex);
1363
1364 memset(stats, 0, sizeof(*stats));
1365 for (i = 0; i < hw->wiphy->n_radio; i++) {
1366 struct mt7996_phy *phy = dev->radio_phy[i];
1367 struct mt76_mib_stats *mib = &phy->mib;
1368
1369 stats->dot11RTSSuccessCount += mib->rts_cnt;
1370 stats->dot11RTSFailureCount += mib->rts_retries_cnt;
1371 stats->dot11FCSErrorCount += mib->fcs_err_cnt;
1372 stats->dot11ACKFailureCount += mib->ack_fail_cnt;
1373 }
1374
1375 mutex_unlock(&dev->mt76.mutex);
1376
1377 return 0;
1378 }
1379
__mt7996_get_tsf(struct ieee80211_hw * hw,struct mt7996_vif_link * link)1380 u64 __mt7996_get_tsf(struct ieee80211_hw *hw, struct mt7996_vif_link *link)
1381 {
1382 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1383 struct mt7996_phy *phy = link->phy;
1384 union {
1385 u64 t64;
1386 u32 t32[2];
1387 } tsf;
1388 u16 n;
1389
1390 if (!phy)
1391 return 0;
1392
1393 lockdep_assert_held(&dev->mt76.mutex);
1394
1395 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1396 : link->mt76.omac_idx;
1397 /* TSF software read */
1398 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1399 MT_LPON_TCR_SW_READ);
1400 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(phy->mt76->band_idx));
1401 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(phy->mt76->band_idx));
1402
1403 return tsf.t64;
1404 }
1405
1406 static u64
mt7996_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1407 mt7996_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1408 {
1409 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1410 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1411 u64 ret;
1412
1413 mutex_lock(&dev->mt76.mutex);
1414 ret = __mt7996_get_tsf(hw, &mvif->deflink);
1415 mutex_unlock(&dev->mt76.mutex);
1416
1417 return ret;
1418 }
1419
1420 static void
mt7996_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 timestamp)1421 mt7996_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1422 u64 timestamp)
1423 {
1424 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1425 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1426 struct mt7996_vif_link *link;
1427 struct mt7996_phy *phy;
1428 union {
1429 u64 t64;
1430 u32 t32[2];
1431 } tsf = { .t64 = timestamp, };
1432 u16 n;
1433
1434 mutex_lock(&dev->mt76.mutex);
1435
1436 link = mt7996_vif_link(dev, vif, mvif->mt76.deflink_id);
1437 if (!link)
1438 goto unlock;
1439
1440 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1441 : link->mt76.omac_idx;
1442 phy = link->phy;
1443 if (!phy)
1444 goto unlock;
1445
1446 mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
1447 mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
1448 /* TSF software overwrite */
1449 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1450 MT_LPON_TCR_SW_WRITE);
1451
1452 unlock:
1453 mutex_unlock(&dev->mt76.mutex);
1454 }
1455
1456 static void
mt7996_offset_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,s64 timestamp)1457 mt7996_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1458 s64 timestamp)
1459 {
1460 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1461 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1462 struct mt7996_vif_link *link;
1463 struct mt7996_phy *phy;
1464 union {
1465 u64 t64;
1466 u32 t32[2];
1467 } tsf = { .t64 = timestamp, };
1468 u16 n;
1469
1470 mutex_lock(&dev->mt76.mutex);
1471
1472 link = mt7996_vif_link(dev, vif, mvif->mt76.deflink_id);
1473 if (!link)
1474 goto unlock;
1475
1476 phy = link->phy;
1477 if (!phy)
1478 goto unlock;
1479
1480 n = link->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
1481 : link->mt76.omac_idx;
1482 mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
1483 mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
1484 /* TSF software adjust*/
1485 mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
1486 MT_LPON_TCR_SW_ADJUST);
1487
1488 unlock:
1489 mutex_unlock(&dev->mt76.mutex);
1490 }
1491
1492 static void
mt7996_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)1493 mt7996_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
1494 {
1495 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1496 struct mt7996_phy *phy;
1497
1498 mutex_lock(&dev->mt76.mutex);
1499 mt7996_for_each_phy(dev, phy) {
1500 phy->coverage_class = max_t(s16, coverage_class, 0);
1501 mt7996_mac_set_coverage_class(phy);
1502 }
1503 mutex_unlock(&dev->mt76.mutex);
1504 }
1505
1506 static int
mt7996_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)1507 mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1508 {
1509 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1510 int i;
1511
1512 if (tx_ant != rx_ant)
1513 return -EINVAL;
1514
1515 for (i = 0; i < hw->wiphy->n_radio; i++) {
1516 struct mt7996_phy *phy = dev->radio_phy[i];
1517
1518 if (!(tx_ant & phy->orig_chainmask))
1519 return -EINVAL;
1520 }
1521
1522 mutex_lock(&dev->mt76.mutex);
1523
1524 for (i = 0; i < hw->wiphy->n_radio; i++) {
1525 struct mt7996_phy *phy = dev->radio_phy[i];
1526 u8 band_idx = phy->mt76->band_idx;
1527 u8 shift = dev->chainshift[band_idx];
1528
1529 phy->mt76->chainmask = tx_ant & phy->orig_chainmask;
1530 phy->mt76->antenna_mask = (phy->mt76->chainmask >> shift) &
1531 phy->orig_antenna_mask;
1532
1533 mt76_set_stream_caps(phy->mt76, true);
1534 mt7996_set_stream_vht_txbf_caps(phy);
1535 mt7996_set_stream_he_eht_caps(phy);
1536 mt7996_mcu_set_txpower_sku(phy);
1537 }
1538
1539 mutex_unlock(&dev->mt76.mutex);
1540
1541 return 0;
1542 }
1543
mt7996_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)1544 static void mt7996_sta_statistics(struct ieee80211_hw *hw,
1545 struct ieee80211_vif *vif,
1546 struct ieee80211_sta *sta,
1547 struct station_info *sinfo)
1548 {
1549 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1550 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1551 struct mt7996_sta_link *msta_link = &msta->deflink;
1552 struct rate_info *txrate = &msta_link->wcid.rate;
1553
1554 if (txrate->legacy || txrate->flags) {
1555 if (txrate->legacy) {
1556 sinfo->txrate.legacy = txrate->legacy;
1557 } else {
1558 sinfo->txrate.mcs = txrate->mcs;
1559 sinfo->txrate.nss = txrate->nss;
1560 sinfo->txrate.bw = txrate->bw;
1561 sinfo->txrate.he_gi = txrate->he_gi;
1562 sinfo->txrate.he_dcm = txrate->he_dcm;
1563 sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc;
1564 sinfo->txrate.eht_gi = txrate->eht_gi;
1565 }
1566 sinfo->txrate.flags = txrate->flags;
1567 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1568 }
1569 sinfo->txrate.flags = txrate->flags;
1570 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1571
1572 sinfo->tx_failed = msta_link->wcid.stats.tx_failed;
1573 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1574
1575 sinfo->tx_retries = msta_link->wcid.stats.tx_retries;
1576 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
1577
1578 sinfo->ack_signal = (s8)msta_link->ack_signal;
1579 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
1580
1581 sinfo->avg_ack_signal =
1582 -(s8)ewma_avg_signal_read(&msta_link->avg_ack_signal);
1583 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL_AVG);
1584
1585 if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
1586 sinfo->tx_bytes = msta_link->wcid.stats.tx_bytes;
1587 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
1588
1589 sinfo->rx_bytes = msta_link->wcid.stats.rx_bytes;
1590 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
1591
1592 sinfo->tx_packets = msta_link->wcid.stats.tx_packets;
1593 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
1594
1595 sinfo->rx_packets = msta_link->wcid.stats.rx_packets;
1596 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
1597 }
1598 }
1599
mt7996_link_rate_ctrl_update(void * data,struct ieee80211_sta * sta)1600 static void mt7996_link_rate_ctrl_update(void *data, struct ieee80211_sta *sta)
1601 {
1602 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1603 struct mt7996_dev *dev = msta->vif->deflink.phy->dev;
1604 struct mt7996_sta_link *msta_link;
1605 u32 *changed = data;
1606
1607 rcu_read_lock();
1608
1609 msta_link = rcu_dereference(msta->link[msta->deflink_id]);
1610 if (!msta_link)
1611 goto out;
1612
1613 spin_lock_bh(&dev->mt76.sta_poll_lock);
1614
1615 msta_link->changed |= *changed;
1616 if (list_empty(&msta_link->rc_list))
1617 list_add_tail(&msta_link->rc_list, &dev->sta_rc_list);
1618
1619 spin_unlock_bh(&dev->mt76.sta_poll_lock);
1620 out:
1621 rcu_read_unlock();
1622 }
1623
mt7996_link_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta,u32 changed)1624 static void mt7996_link_sta_rc_update(struct ieee80211_hw *hw,
1625 struct ieee80211_vif *vif,
1626 struct ieee80211_link_sta *link_sta,
1627 u32 changed)
1628 {
1629 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1630 struct ieee80211_sta *sta = link_sta->sta;
1631
1632 mt7996_link_rate_ctrl_update(&changed, sta);
1633 ieee80211_queue_work(hw, &dev->rc_work);
1634 }
1635
1636 static int
mt7996_set_bitrate_mask(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct cfg80211_bitrate_mask * mask)1637 mt7996_set_bitrate_mask(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1638 const struct cfg80211_bitrate_mask *mask)
1639 {
1640 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1641 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1642 u32 changed = IEEE80211_RC_SUPP_RATES_CHANGED;
1643
1644 mvif->deflink.bitrate_mask = *mask;
1645
1646 /* if multiple rates across different preambles are given we can
1647 * reconfigure this info with all peers using sta_rec command with
1648 * the below exception cases.
1649 * - single rate : if a rate is passed along with different preambles,
1650 * we select the highest one as fixed rate. i.e VHT MCS for VHT peers.
1651 * - multiple rates: if it's not in range format i.e 0-{7,8,9} for VHT
1652 * then multiple MCS setting (MCS 4,5,6) is not supported.
1653 */
1654 ieee80211_iterate_stations_atomic(hw, mt7996_link_rate_ctrl_update,
1655 &changed);
1656 ieee80211_queue_work(hw, &dev->rc_work);
1657
1658 return 0;
1659 }
1660
mt7996_sta_set_4addr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1661 static void mt7996_sta_set_4addr(struct ieee80211_hw *hw,
1662 struct ieee80211_vif *vif,
1663 struct ieee80211_sta *sta,
1664 bool enabled)
1665 {
1666 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1667 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1668 struct ieee80211_link_sta *link_sta;
1669 unsigned int link_id;
1670
1671 mutex_lock(&dev->mt76.mutex);
1672
1673 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1674 struct mt7996_sta_link *msta_link;
1675 struct mt7996_vif_link *link;
1676
1677 link = mt7996_vif_link(dev, vif, link_id);
1678 if (!link)
1679 continue;
1680
1681 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1682 if (!msta_link)
1683 continue;
1684
1685 if (enabled)
1686 set_bit(MT_WCID_FLAG_4ADDR, &msta_link->wcid.flags);
1687 else
1688 clear_bit(MT_WCID_FLAG_4ADDR, &msta_link->wcid.flags);
1689
1690 if (!msta_link->wcid.sta)
1691 continue;
1692
1693 mt7996_mcu_wtbl_update_hdr_trans(dev, vif, link, msta_link);
1694 }
1695
1696 mutex_unlock(&dev->mt76.mutex);
1697 }
1698
mt7996_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1699 static void mt7996_sta_set_decap_offload(struct ieee80211_hw *hw,
1700 struct ieee80211_vif *vif,
1701 struct ieee80211_sta *sta,
1702 bool enabled)
1703 {
1704 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1705 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1706 struct ieee80211_link_sta *link_sta;
1707 unsigned int link_id;
1708
1709 mutex_lock(&dev->mt76.mutex);
1710
1711 for_each_sta_active_link(vif, sta, link_sta, link_id) {
1712 struct mt7996_sta_link *msta_link;
1713 struct mt7996_vif_link *link;
1714
1715 link = mt7996_vif_link(dev, vif, link_id);
1716 if (!link)
1717 continue;
1718
1719 msta_link = mt76_dereference(msta->link[link_id], &dev->mt76);
1720 if (!msta_link)
1721 continue;
1722
1723 if (enabled)
1724 set_bit(MT_WCID_FLAG_HDR_TRANS,
1725 &msta_link->wcid.flags);
1726 else
1727 clear_bit(MT_WCID_FLAG_HDR_TRANS,
1728 &msta_link->wcid.flags);
1729
1730 if (!msta_link->wcid.sta)
1731 continue;
1732
1733 mt7996_mcu_wtbl_update_hdr_trans(dev, vif, link, msta_link);
1734 }
1735
1736 mutex_unlock(&dev->mt76.mutex);
1737 }
1738
1739 static const char mt7996_gstrings_stats[][ETH_GSTRING_LEN] = {
1740 "tx_ampdu_cnt",
1741 "tx_stop_q_empty_cnt",
1742 "tx_mpdu_attempts",
1743 "tx_mpdu_success",
1744 "tx_rwp_fail_cnt",
1745 "tx_rwp_need_cnt",
1746 "tx_pkt_ebf_cnt",
1747 "tx_pkt_ibf_cnt",
1748 "tx_ampdu_len:0-1",
1749 "tx_ampdu_len:2-10",
1750 "tx_ampdu_len:11-19",
1751 "tx_ampdu_len:20-28",
1752 "tx_ampdu_len:29-37",
1753 "tx_ampdu_len:38-46",
1754 "tx_ampdu_len:47-55",
1755 "tx_ampdu_len:56-79",
1756 "tx_ampdu_len:80-103",
1757 "tx_ampdu_len:104-127",
1758 "tx_ampdu_len:128-151",
1759 "tx_ampdu_len:152-175",
1760 "tx_ampdu_len:176-199",
1761 "tx_ampdu_len:200-223",
1762 "tx_ampdu_len:224-247",
1763 "ba_miss_count",
1764 "tx_beamformer_ppdu_iBF",
1765 "tx_beamformer_ppdu_eBF",
1766 "tx_beamformer_rx_feedback_all",
1767 "tx_beamformer_rx_feedback_he",
1768 "tx_beamformer_rx_feedback_vht",
1769 "tx_beamformer_rx_feedback_ht",
1770 "tx_beamformer_rx_feedback_bw", /* zero based idx: 20, 40, 80, 160 */
1771 "tx_beamformer_rx_feedback_nc",
1772 "tx_beamformer_rx_feedback_nr",
1773 "tx_beamformee_ok_feedback_pkts",
1774 "tx_beamformee_feedback_trig",
1775 "tx_mu_beamforming",
1776 "tx_mu_mpdu",
1777 "tx_mu_successful_mpdu",
1778 "tx_su_successful_mpdu",
1779 "tx_msdu_pack_1",
1780 "tx_msdu_pack_2",
1781 "tx_msdu_pack_3",
1782 "tx_msdu_pack_4",
1783 "tx_msdu_pack_5",
1784 "tx_msdu_pack_6",
1785 "tx_msdu_pack_7",
1786 "tx_msdu_pack_8",
1787
1788 /* rx counters */
1789 "rx_fifo_full_cnt",
1790 "rx_mpdu_cnt",
1791 "channel_idle_cnt",
1792 "rx_vector_mismatch_cnt",
1793 "rx_delimiter_fail_cnt",
1794 "rx_len_mismatch_cnt",
1795 "rx_ampdu_cnt",
1796 "rx_ampdu_bytes_cnt",
1797 "rx_ampdu_valid_subframe_cnt",
1798 "rx_ampdu_valid_subframe_b_cnt",
1799 "rx_pfdrop_cnt",
1800 "rx_vec_queue_overflow_drop_cnt",
1801 "rx_ba_cnt",
1802
1803 /* per vif counters */
1804 "v_tx_mode_cck",
1805 "v_tx_mode_ofdm",
1806 "v_tx_mode_ht",
1807 "v_tx_mode_ht_gf",
1808 "v_tx_mode_vht",
1809 "v_tx_mode_he_su",
1810 "v_tx_mode_he_ext_su",
1811 "v_tx_mode_he_tb",
1812 "v_tx_mode_he_mu",
1813 "v_tx_mode_eht_su",
1814 "v_tx_mode_eht_trig",
1815 "v_tx_mode_eht_mu",
1816 "v_tx_bw_20",
1817 "v_tx_bw_40",
1818 "v_tx_bw_80",
1819 "v_tx_bw_160",
1820 "v_tx_bw_320",
1821 "v_tx_mcs_0",
1822 "v_tx_mcs_1",
1823 "v_tx_mcs_2",
1824 "v_tx_mcs_3",
1825 "v_tx_mcs_4",
1826 "v_tx_mcs_5",
1827 "v_tx_mcs_6",
1828 "v_tx_mcs_7",
1829 "v_tx_mcs_8",
1830 "v_tx_mcs_9",
1831 "v_tx_mcs_10",
1832 "v_tx_mcs_11",
1833 "v_tx_mcs_12",
1834 "v_tx_mcs_13",
1835 "v_tx_nss_1",
1836 "v_tx_nss_2",
1837 "v_tx_nss_3",
1838 "v_tx_nss_4",
1839 };
1840
1841 #define MT7996_SSTATS_LEN ARRAY_SIZE(mt7996_gstrings_stats)
1842
1843 /* Ethtool related API */
1844 static
mt7996_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)1845 void mt7996_get_et_strings(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif,
1847 u32 sset, u8 *data)
1848 {
1849 if (sset == ETH_SS_STATS)
1850 memcpy(data, mt7996_gstrings_stats,
1851 sizeof(mt7996_gstrings_stats));
1852 }
1853
1854 static
mt7996_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)1855 int mt7996_get_et_sset_count(struct ieee80211_hw *hw,
1856 struct ieee80211_vif *vif, int sset)
1857 {
1858 if (sset == ETH_SS_STATS)
1859 return MT7996_SSTATS_LEN;
1860
1861 return 0;
1862 }
1863
mt7996_ethtool_worker(void * wi_data,struct ieee80211_sta * sta)1864 static void mt7996_ethtool_worker(void *wi_data, struct ieee80211_sta *sta)
1865 {
1866 struct mt76_ethtool_worker_info *wi = wi_data;
1867 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1868 struct mt7996_sta_link *msta_link = &msta->deflink;
1869
1870 if (msta->vif->deflink.mt76.idx != wi->idx)
1871 return;
1872
1873 mt76_ethtool_worker(wi, &msta_link->wcid.stats, true);
1874 }
1875
1876 static
mt7996_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)1877 void mt7996_get_et_stats(struct ieee80211_hw *hw,
1878 struct ieee80211_vif *vif,
1879 struct ethtool_stats *stats, u64 *data)
1880 {
1881 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1882 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
1883 struct mt7996_phy *phy = mt7996_vif_link_phy(&mvif->deflink);
1884 struct mt76_mib_stats *mib = &phy->mib;
1885 struct mt76_ethtool_worker_info wi = {
1886 .data = data,
1887 .idx = mvif->deflink.mt76.idx,
1888 };
1889 /* See mt7996_ampdu_stat_read_phy, etc */
1890 int i, ei = 0;
1891
1892 if (!phy)
1893 return;
1894
1895 mutex_lock(&dev->mt76.mutex);
1896
1897 mt7996_mac_update_stats(phy);
1898
1899 data[ei++] = mib->tx_ampdu_cnt;
1900 data[ei++] = mib->tx_stop_q_empty_cnt;
1901 data[ei++] = mib->tx_mpdu_attempts_cnt;
1902 data[ei++] = mib->tx_mpdu_success_cnt;
1903 data[ei++] = mib->tx_rwp_fail_cnt;
1904 data[ei++] = mib->tx_rwp_need_cnt;
1905 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
1906 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
1907
1908 /* Tx ampdu stat */
1909 for (i = 0; i < 15 /*ARRAY_SIZE(bound)*/; i++)
1910 data[ei++] = phy->mt76->aggr_stats[i];
1911 data[ei++] = phy->mib.ba_miss_cnt;
1912
1913 /* Tx Beamformer monitor */
1914 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
1915 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
1916
1917 /* Tx Beamformer Rx feedback monitor */
1918 data[ei++] = mib->tx_bf_rx_fb_all_cnt;
1919 data[ei++] = mib->tx_bf_rx_fb_he_cnt;
1920 data[ei++] = mib->tx_bf_rx_fb_vht_cnt;
1921 data[ei++] = mib->tx_bf_rx_fb_ht_cnt;
1922
1923 data[ei++] = mib->tx_bf_rx_fb_bw;
1924 data[ei++] = mib->tx_bf_rx_fb_nc_cnt;
1925 data[ei++] = mib->tx_bf_rx_fb_nr_cnt;
1926
1927 /* Tx Beamformee Rx NDPA & Tx feedback report */
1928 data[ei++] = mib->tx_bf_fb_cpl_cnt;
1929 data[ei++] = mib->tx_bf_fb_trig_cnt;
1930
1931 /* Tx SU & MU counters */
1932 data[ei++] = mib->tx_mu_bf_cnt;
1933 data[ei++] = mib->tx_mu_mpdu_cnt;
1934 data[ei++] = mib->tx_mu_acked_mpdu_cnt;
1935 data[ei++] = mib->tx_su_acked_mpdu_cnt;
1936
1937 /* Tx amsdu info (pack-count histogram) */
1938 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++)
1939 data[ei++] = mib->tx_amsdu[i];
1940
1941 /* rx counters */
1942 data[ei++] = mib->rx_fifo_full_cnt;
1943 data[ei++] = mib->rx_mpdu_cnt;
1944 data[ei++] = mib->channel_idle_cnt;
1945 data[ei++] = mib->rx_vector_mismatch_cnt;
1946 data[ei++] = mib->rx_delimiter_fail_cnt;
1947 data[ei++] = mib->rx_len_mismatch_cnt;
1948 data[ei++] = mib->rx_ampdu_cnt;
1949 data[ei++] = mib->rx_ampdu_bytes_cnt;
1950 data[ei++] = mib->rx_ampdu_valid_subframe_cnt;
1951 data[ei++] = mib->rx_ampdu_valid_subframe_bytes_cnt;
1952 data[ei++] = mib->rx_pfdrop_cnt;
1953 data[ei++] = mib->rx_vec_queue_overflow_drop_cnt;
1954 data[ei++] = mib->rx_ba_cnt;
1955
1956 /* Add values for all stations owned by this vif */
1957 wi.initial_stat_idx = ei;
1958 ieee80211_iterate_stations_atomic(hw, mt7996_ethtool_worker, &wi);
1959
1960 mutex_unlock(&dev->mt76.mutex);
1961
1962 if (wi.sta_count == 0)
1963 return;
1964
1965 ei += wi.worker_stat_count;
1966 if (ei != MT7996_SSTATS_LEN)
1967 dev_err(dev->mt76.dev, "ei: %d MT7996_SSTATS_LEN: %d",
1968 ei, (int)MT7996_SSTATS_LEN);
1969 }
1970
1971 static void
mt7996_twt_teardown_request(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u8 flowid)1972 mt7996_twt_teardown_request(struct ieee80211_hw *hw,
1973 struct ieee80211_sta *sta,
1974 u8 flowid)
1975 {
1976 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
1977 struct mt7996_sta_link *msta_link = &msta->deflink;
1978 struct mt7996_vif_link *link = &msta->vif->deflink;
1979 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1980
1981 mutex_lock(&dev->mt76.mutex);
1982 mt7996_mac_twt_teardown_flow(dev, link, msta_link, flowid);
1983 mutex_unlock(&dev->mt76.mutex);
1984 }
1985
1986 static int
mt7996_set_radar_background(struct ieee80211_hw * hw,struct cfg80211_chan_def * chandef)1987 mt7996_set_radar_background(struct ieee80211_hw *hw,
1988 struct cfg80211_chan_def *chandef)
1989 {
1990 struct mt7996_dev *dev = mt7996_hw_dev(hw);
1991 struct mt7996_phy *phy;
1992 int ret = -EINVAL;
1993 bool running;
1994
1995 if (chandef)
1996 phy = mt7996_band_phy(dev, chandef->chan->band);
1997 else
1998 phy = dev->rdd2_phy;
1999 if (!phy)
2000 return -EINVAL;
2001
2002 mutex_lock(&dev->mt76.mutex);
2003
2004 if (dev->mt76.region == NL80211_DFS_UNSET)
2005 goto out;
2006
2007 if (dev->rdd2_phy && dev->rdd2_phy != phy) {
2008 /* rdd2 is already locked */
2009 ret = -EBUSY;
2010 goto out;
2011 }
2012
2013 /* rdd2 already configured on a radar channel */
2014 running = dev->rdd2_phy &&
2015 cfg80211_chandef_valid(&dev->rdd2_chandef) &&
2016 !!(dev->rdd2_chandef.chan->flags & IEEE80211_CHAN_RADAR);
2017
2018 if (!chandef || running ||
2019 !(chandef->chan->flags & IEEE80211_CHAN_RADAR)) {
2020 ret = mt7996_mcu_rdd_background_enable(phy, NULL);
2021 if (ret)
2022 goto out;
2023
2024 if (!running)
2025 goto update_phy;
2026 }
2027
2028 ret = mt7996_mcu_rdd_background_enable(phy, chandef);
2029 if (ret)
2030 goto out;
2031
2032 update_phy:
2033 dev->rdd2_phy = chandef ? phy : NULL;
2034 if (chandef)
2035 dev->rdd2_chandef = *chandef;
2036 out:
2037 mutex_unlock(&dev->mt76.mutex);
2038
2039 return ret;
2040 }
2041
2042 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
2043 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)2044 mt7996_net_fill_forward_path(struct ieee80211_hw *hw,
2045 struct ieee80211_vif *vif,
2046 struct ieee80211_sta *sta,
2047 struct net_device_path_ctx *ctx,
2048 struct net_device_path *path)
2049 {
2050 struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
2051 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
2052 struct mt7996_dev *dev = mt7996_hw_dev(hw);
2053 struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
2054 struct mt7996_sta_link *msta_link;
2055 struct mt7996_vif_link *link;
2056 struct mt76_vif_link *mlink;
2057 struct mt7996_phy *phy;
2058
2059 mlink = rcu_dereference(mvif->mt76.link[msta->deflink_id]);
2060 if (!mlink)
2061 return -EIO;
2062
2063 msta_link = rcu_dereference(msta->link[msta->deflink_id]);
2064 if (!msta_link)
2065 return -EIO;
2066
2067 if (!msta_link->wcid.sta || msta_link->wcid.idx > MT7996_WTBL_STA)
2068 return -EIO;
2069
2070 link = (struct mt7996_vif_link *)mlink;
2071 phy = mt7996_vif_link_phy(link);
2072 if (!phy)
2073 return -ENODEV;
2074
2075 if (phy != &dev->phy && phy->mt76->band_idx == MT_BAND2)
2076 wed = &dev->mt76.mmio.wed_hif2;
2077
2078 if (!mtk_wed_device_active(wed))
2079 return -ENODEV;
2080
2081 path->type = DEV_PATH_MTK_WDMA;
2082 path->dev = ctx->dev;
2083 path->mtk_wdma.wdma_idx = wed->wdma_idx;
2084 path->mtk_wdma.bss = mlink->idx;
2085 path->mtk_wdma.queue = 0;
2086 path->mtk_wdma.wcid = msta_link->wcid.idx;
2087
2088 path->mtk_wdma.amsdu = mtk_wed_is_amsdu_supported(wed);
2089 ctx->dev = NULL;
2090
2091 return 0;
2092 }
2093
2094 #endif
2095
2096 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])2097 mt7996_change_vif_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2098 u16 old_links, u16 new_links,
2099 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
2100 {
2101 return 0;
2102 }
2103
2104 const struct ieee80211_ops mt7996_ops = {
2105 .add_chanctx = mt76_add_chanctx,
2106 .remove_chanctx = mt76_remove_chanctx,
2107 .change_chanctx = mt76_change_chanctx,
2108 .assign_vif_chanctx = mt76_assign_vif_chanctx,
2109 .unassign_vif_chanctx = mt76_unassign_vif_chanctx,
2110 .switch_vif_chanctx = mt76_switch_vif_chanctx,
2111 .tx = mt7996_tx,
2112 .start = mt7996_start,
2113 .stop = mt7996_stop,
2114 .add_interface = mt7996_add_interface,
2115 .remove_interface = mt7996_remove_interface,
2116 .config = mt7996_config,
2117 .conf_tx = mt7996_conf_tx,
2118 .configure_filter = mt7996_configure_filter,
2119 .vif_cfg_changed = mt7996_vif_cfg_changed,
2120 .link_info_changed = mt7996_link_info_changed,
2121 .sta_state = mt7996_sta_state,
2122 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
2123 .link_sta_rc_update = mt7996_link_sta_rc_update,
2124 .set_key = mt7996_set_key,
2125 .ampdu_action = mt7996_ampdu_action,
2126 .set_rts_threshold = mt7996_set_rts_threshold,
2127 .wake_tx_queue = mt76_wake_tx_queue,
2128 .hw_scan = mt76_hw_scan,
2129 .cancel_hw_scan = mt76_cancel_hw_scan,
2130 .remain_on_channel = mt76_remain_on_channel,
2131 .cancel_remain_on_channel = mt76_cancel_remain_on_channel,
2132 .release_buffered_frames = mt76_release_buffered_frames,
2133 .get_txpower = mt7996_get_txpower,
2134 .channel_switch_beacon = mt7996_channel_switch_beacon,
2135 .get_stats = mt7996_get_stats,
2136 .get_et_sset_count = mt7996_get_et_sset_count,
2137 .get_et_stats = mt7996_get_et_stats,
2138 .get_et_strings = mt7996_get_et_strings,
2139 .get_tsf = mt7996_get_tsf,
2140 .set_tsf = mt7996_set_tsf,
2141 .offset_tsf = mt7996_offset_tsf,
2142 .get_survey = mt76_get_survey,
2143 .get_antenna = mt76_get_antenna,
2144 .set_antenna = mt7996_set_antenna,
2145 .set_bitrate_mask = mt7996_set_bitrate_mask,
2146 .set_coverage_class = mt7996_set_coverage_class,
2147 .sta_statistics = mt7996_sta_statistics,
2148 .sta_set_4addr = mt7996_sta_set_4addr,
2149 .sta_set_decap_offload = mt7996_sta_set_decap_offload,
2150 .add_twt_setup = mt7996_mac_add_twt_setup,
2151 .twt_teardown_request = mt7996_twt_teardown_request,
2152 #ifdef CONFIG_MAC80211_DEBUGFS
2153 .sta_add_debugfs = mt7996_sta_add_debugfs,
2154 #endif
2155 .set_radar_background = mt7996_set_radar_background,
2156 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
2157 .net_fill_forward_path = mt7996_net_fill_forward_path,
2158 .net_setup_tc = mt76_wed_net_setup_tc,
2159 #endif
2160 .change_vif_links = mt7996_change_vif_links,
2161 .change_sta_links = mt7996_mac_sta_change_links,
2162 };
2163