1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2023 MediaTek Inc. */
3
4 #include <linux/module.h>
5 #include <linux/firmware.h>
6
7 #include "mt792x.h"
8 #include "dma.h"
9
10 static const struct ieee80211_iface_limit if_limits[] = {
11 {
12 .max = MT792x_MAX_INTERFACES,
13 .types = BIT(NL80211_IFTYPE_STATION)
14 },
15 {
16 .max = 1,
17 .types = BIT(NL80211_IFTYPE_AP)
18 }
19 };
20
21 static const struct ieee80211_iface_combination if_comb[] = {
22 {
23 .limits = if_limits,
24 .n_limits = ARRAY_SIZE(if_limits),
25 .max_interfaces = MT792x_MAX_INTERFACES,
26 .num_different_channels = 1,
27 .beacon_int_infra_match = true,
28 },
29 };
30
31 static const struct ieee80211_iface_limit if_limits_chanctx[] = {
32 {
33 .max = 2,
34 .types = BIT(NL80211_IFTYPE_STATION) |
35 BIT(NL80211_IFTYPE_P2P_CLIENT)
36 },
37 {
38 .max = 1,
39 .types = BIT(NL80211_IFTYPE_AP) |
40 BIT(NL80211_IFTYPE_P2P_GO)
41 }
42 };
43
44 static const struct ieee80211_iface_combination if_comb_chanctx[] = {
45 {
46 .limits = if_limits_chanctx,
47 .n_limits = ARRAY_SIZE(if_limits_chanctx),
48 .max_interfaces = 2,
49 .num_different_channels = 2,
50 .beacon_int_infra_match = false,
51 }
52 };
53
mt792x_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)54 void mt792x_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
55 struct sk_buff *skb)
56 {
57 struct mt792x_dev *dev = mt792x_hw_dev(hw);
58 struct mt76_phy *mphy = hw->priv;
59 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
60 struct ieee80211_vif *vif = info->control.vif;
61 struct mt76_wcid *wcid = &dev->mt76.global_wcid;
62 u8 link_id;
63 int qid;
64
65 if (control->sta) {
66 struct mt792x_link_sta *mlink;
67 struct mt792x_sta *sta;
68 link_id = u32_get_bits(info->control.flags,
69 IEEE80211_TX_CTRL_MLO_LINK);
70 sta = (struct mt792x_sta *)control->sta->drv_priv;
71 mlink = mt792x_sta_to_link(sta, link_id);
72 wcid = &mlink->wcid;
73 }
74
75 if (vif && !control->sta) {
76 struct mt792x_vif *mvif;
77
78 mvif = (struct mt792x_vif *)vif->drv_priv;
79 wcid = &mvif->sta.deflink.wcid;
80 }
81
82 if (vif && control->sta && ieee80211_vif_is_mld(vif)) {
83 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
84 struct ieee80211_link_sta *link_sta;
85 struct ieee80211_bss_conf *conf;
86
87 link_id = wcid->link_id;
88 rcu_read_lock();
89 conf = rcu_dereference(vif->link_conf[link_id]);
90 memcpy(hdr->addr2, conf->addr, ETH_ALEN);
91
92 link_sta = rcu_dereference(control->sta->link[link_id]);
93 memcpy(hdr->addr1, link_sta->addr, ETH_ALEN);
94
95 if (vif->type == NL80211_IFTYPE_STATION)
96 memcpy(hdr->addr3, conf->bssid, ETH_ALEN);
97 rcu_read_unlock();
98 }
99
100 if (mt76_connac_pm_ref(mphy, &dev->pm)) {
101 mt76_tx(mphy, control->sta, wcid, skb);
102 mt76_connac_pm_unref(mphy, &dev->pm);
103 return;
104 }
105
106 qid = skb_get_queue_mapping(skb);
107 if (qid >= MT_TXQ_PSD) {
108 qid = IEEE80211_AC_BE;
109 skb_set_queue_mapping(skb, qid);
110 }
111
112 mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb);
113 }
114 EXPORT_SYMBOL_GPL(mt792x_tx);
115
mt792x_stop(struct ieee80211_hw * hw,bool suspend)116 void mt792x_stop(struct ieee80211_hw *hw, bool suspend)
117 {
118 struct mt792x_dev *dev = mt792x_hw_dev(hw);
119 struct mt792x_phy *phy = mt792x_hw_phy(hw);
120
121 cancel_delayed_work_sync(&phy->mt76->mac_work);
122
123 cancel_delayed_work_sync(&dev->pm.ps_work);
124 cancel_work_sync(&dev->pm.wake_work);
125 cancel_work_sync(&dev->reset_work);
126 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
127
128 if (is_mt7921(&dev->mt76)) {
129 mt792x_mutex_acquire(dev);
130 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false);
131 mt792x_mutex_release(dev);
132 }
133
134 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
135 }
136 EXPORT_SYMBOL_GPL(mt792x_stop);
137
mt792x_mac_link_bss_remove(struct mt792x_dev * dev,struct mt792x_bss_conf * mconf,struct mt792x_link_sta * mlink)138 void mt792x_mac_link_bss_remove(struct mt792x_dev *dev,
139 struct mt792x_bss_conf *mconf,
140 struct mt792x_link_sta *mlink)
141 {
142 struct ieee80211_vif *vif = container_of((void *)mconf->vif,
143 struct ieee80211_vif, drv_priv);
144 struct ieee80211_bss_conf *link_conf;
145 int idx = mlink->wcid.idx;
146
147 link_conf = mt792x_vif_to_bss_conf(vif, mconf->link_id);
148
149 mt76_connac_free_pending_tx_skbs(&dev->pm, &mlink->wcid);
150 mt76_connac_mcu_uni_add_dev(&dev->mphy, link_conf, &mconf->mt76,
151 &mlink->wcid, false);
152
153 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
154
155 dev->mt76.vif_mask &= ~BIT_ULL(mconf->mt76.idx);
156 mconf->vif->phy->omac_mask &= ~BIT_ULL(mconf->mt76.omac_idx);
157
158 spin_lock_bh(&dev->mt76.sta_poll_lock);
159 if (!list_empty(&mlink->wcid.poll_list))
160 list_del_init(&mlink->wcid.poll_list);
161 spin_unlock_bh(&dev->mt76.sta_poll_lock);
162
163 mt76_wcid_cleanup(&dev->mt76, &mlink->wcid);
164 }
165 EXPORT_SYMBOL_GPL(mt792x_mac_link_bss_remove);
166
mt792x_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)167 void mt792x_remove_interface(struct ieee80211_hw *hw,
168 struct ieee80211_vif *vif)
169 {
170 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
171 struct mt792x_dev *dev = mt792x_hw_dev(hw);
172 struct mt792x_bss_conf *mconf;
173
174 mt792x_mutex_acquire(dev);
175
176 mconf = mt792x_link_conf_to_mconf(&vif->bss_conf);
177 mt792x_mac_link_bss_remove(dev, mconf, &mvif->sta.deflink);
178
179 mt792x_mutex_release(dev);
180 }
181 EXPORT_SYMBOL_GPL(mt792x_remove_interface);
182
mt792x_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * params)183 int mt792x_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
184 unsigned int link_id, u16 queue,
185 const struct ieee80211_tx_queue_params *params)
186 {
187 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
188
189 /* no need to update right away, we'll get BSS_CHANGED_QOS */
190 queue = mt76_connac_lmac_mapping(queue);
191 mvif->bss_conf.queue_params[queue] = *params;
192
193 return 0;
194 }
195 EXPORT_SYMBOL_GPL(mt792x_conf_tx);
196
mt792x_get_stats(struct ieee80211_hw * hw,struct ieee80211_low_level_stats * stats)197 int mt792x_get_stats(struct ieee80211_hw *hw,
198 struct ieee80211_low_level_stats *stats)
199 {
200 struct mt792x_phy *phy = mt792x_hw_phy(hw);
201 struct mt76_mib_stats *mib = &phy->mib;
202
203 mt792x_mutex_acquire(phy->dev);
204
205 stats->dot11RTSSuccessCount = mib->rts_cnt;
206 stats->dot11RTSFailureCount = mib->rts_retries_cnt;
207 stats->dot11FCSErrorCount = mib->fcs_err_cnt;
208 stats->dot11ACKFailureCount = mib->ack_fail_cnt;
209
210 mt792x_mutex_release(phy->dev);
211
212 return 0;
213 }
214 EXPORT_SYMBOL_GPL(mt792x_get_stats);
215
mt792x_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)216 u64 mt792x_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
217 {
218 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
219 struct mt792x_dev *dev = mt792x_hw_dev(hw);
220 u8 omac_idx = mvif->bss_conf.mt76.omac_idx;
221 union {
222 u64 t64;
223 u32 t32[2];
224 } tsf;
225 u16 n;
226
227 mt792x_mutex_acquire(dev);
228
229 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
230 /* TSF software read */
231 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_MODE);
232 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(0));
233 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(0));
234
235 mt792x_mutex_release(dev);
236
237 return tsf.t64;
238 }
239 EXPORT_SYMBOL_GPL(mt792x_get_tsf);
240
mt792x_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 timestamp)241 void mt792x_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
242 u64 timestamp)
243 {
244 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
245 struct mt792x_dev *dev = mt792x_hw_dev(hw);
246 u8 omac_idx = mvif->bss_conf.mt76.omac_idx;
247 union {
248 u64 t64;
249 u32 t32[2];
250 } tsf = { .t64 = timestamp, };
251 u16 n;
252
253 mt792x_mutex_acquire(dev);
254
255 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
256 mt76_wr(dev, MT_LPON_UTTR0(0), tsf.t32[0]);
257 mt76_wr(dev, MT_LPON_UTTR1(0), tsf.t32[1]);
258 /* TSF software overwrite */
259 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_WRITE);
260
261 mt792x_mutex_release(dev);
262 }
263 EXPORT_SYMBOL_GPL(mt792x_set_tsf);
264
mt792x_tx_worker(struct mt76_worker * w)265 void mt792x_tx_worker(struct mt76_worker *w)
266 {
267 struct mt792x_dev *dev = container_of(w, struct mt792x_dev,
268 mt76.tx_worker);
269
270 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
271 queue_work(dev->mt76.wq, &dev->pm.wake_work);
272 return;
273 }
274
275 mt76_txq_schedule_all(&dev->mphy);
276 mt76_connac_pm_unref(&dev->mphy, &dev->pm);
277 }
278 EXPORT_SYMBOL_GPL(mt792x_tx_worker);
279
mt792x_roc_timer(struct timer_list * timer)280 void mt792x_roc_timer(struct timer_list *timer)
281 {
282 struct mt792x_phy *phy = from_timer(phy, timer, roc_timer);
283
284 ieee80211_queue_work(phy->mt76->hw, &phy->roc_work);
285 }
286 EXPORT_SYMBOL_GPL(mt792x_roc_timer);
287
mt792x_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)288 void mt792x_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
289 u32 queues, bool drop)
290 {
291 struct mt792x_dev *dev = mt792x_hw_dev(hw);
292
293 wait_event_timeout(dev->mt76.tx_wait,
294 !mt76_has_tx_pending(&dev->mphy), HZ / 2);
295 }
296 EXPORT_SYMBOL_GPL(mt792x_flush);
297
mt792x_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)298 int mt792x_assign_vif_chanctx(struct ieee80211_hw *hw,
299 struct ieee80211_vif *vif,
300 struct ieee80211_bss_conf *link_conf,
301 struct ieee80211_chanctx_conf *ctx)
302 {
303 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv;
304 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
305 struct mt792x_dev *dev = mt792x_hw_dev(hw);
306
307 mutex_lock(&dev->mt76.mutex);
308 mvif->bss_conf.mt76.ctx = ctx;
309 mctx->bss_conf = &mvif->bss_conf;
310 mutex_unlock(&dev->mt76.mutex);
311
312 return 0;
313 }
314 EXPORT_SYMBOL_GPL(mt792x_assign_vif_chanctx);
315
mt792x_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)316 void mt792x_unassign_vif_chanctx(struct ieee80211_hw *hw,
317 struct ieee80211_vif *vif,
318 struct ieee80211_bss_conf *link_conf,
319 struct ieee80211_chanctx_conf *ctx)
320 {
321 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv;
322 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
323 struct mt792x_dev *dev = mt792x_hw_dev(hw);
324
325 mutex_lock(&dev->mt76.mutex);
326 mctx->bss_conf = NULL;
327 mvif->bss_conf.mt76.ctx = NULL;
328 mutex_unlock(&dev->mt76.mutex);
329 }
330 EXPORT_SYMBOL_GPL(mt792x_unassign_vif_chanctx);
331
mt792x_set_wakeup(struct ieee80211_hw * hw,bool enabled)332 void mt792x_set_wakeup(struct ieee80211_hw *hw, bool enabled)
333 {
334 struct mt792x_dev *dev = mt792x_hw_dev(hw);
335 struct mt76_dev *mdev = &dev->mt76;
336
337 device_set_wakeup_enable(mdev->dev, enabled);
338 }
339 EXPORT_SYMBOL_GPL(mt792x_set_wakeup);
340
341 static const char mt792x_gstrings_stats[][ETH_GSTRING_LEN] = {
342 /* tx counters */
343 "tx_ampdu_cnt",
344 "tx_mpdu_attempts",
345 "tx_mpdu_success",
346 "tx_pkt_ebf_cnt",
347 "tx_pkt_ibf_cnt",
348 "tx_ampdu_len:0-1",
349 "tx_ampdu_len:2-10",
350 "tx_ampdu_len:11-19",
351 "tx_ampdu_len:20-28",
352 "tx_ampdu_len:29-37",
353 "tx_ampdu_len:38-46",
354 "tx_ampdu_len:47-55",
355 "tx_ampdu_len:56-79",
356 "tx_ampdu_len:80-103",
357 "tx_ampdu_len:104-127",
358 "tx_ampdu_len:128-151",
359 "tx_ampdu_len:152-175",
360 "tx_ampdu_len:176-199",
361 "tx_ampdu_len:200-223",
362 "tx_ampdu_len:224-247",
363 "ba_miss_count",
364 "tx_beamformer_ppdu_iBF",
365 "tx_beamformer_ppdu_eBF",
366 "tx_beamformer_rx_feedback_all",
367 "tx_beamformer_rx_feedback_he",
368 "tx_beamformer_rx_feedback_vht",
369 "tx_beamformer_rx_feedback_ht",
370 "tx_msdu_pack_1",
371 "tx_msdu_pack_2",
372 "tx_msdu_pack_3",
373 "tx_msdu_pack_4",
374 "tx_msdu_pack_5",
375 "tx_msdu_pack_6",
376 "tx_msdu_pack_7",
377 "tx_msdu_pack_8",
378 /* rx counters */
379 "rx_mpdu_cnt",
380 "rx_ampdu_cnt",
381 "rx_ampdu_bytes_cnt",
382 "rx_ba_cnt",
383 /* per vif counters */
384 "v_tx_mode_cck",
385 "v_tx_mode_ofdm",
386 "v_tx_mode_ht",
387 "v_tx_mode_ht_gf",
388 "v_tx_mode_vht",
389 "v_tx_mode_he_su",
390 "v_tx_mode_he_ext_su",
391 "v_tx_mode_he_tb",
392 "v_tx_mode_he_mu",
393 "v_tx_mode_eht_su",
394 "v_tx_mode_eht_trig",
395 "v_tx_mode_eht_mu",
396 "v_tx_bw_20",
397 "v_tx_bw_40",
398 "v_tx_bw_80",
399 "v_tx_bw_160",
400 "v_tx_bw_320",
401 "v_tx_mcs_0",
402 "v_tx_mcs_1",
403 "v_tx_mcs_2",
404 "v_tx_mcs_3",
405 "v_tx_mcs_4",
406 "v_tx_mcs_5",
407 "v_tx_mcs_6",
408 "v_tx_mcs_7",
409 "v_tx_mcs_8",
410 "v_tx_mcs_9",
411 "v_tx_mcs_10",
412 "v_tx_mcs_11",
413 "v_tx_mcs_12",
414 "v_tx_mcs_13",
415 "v_tx_nss_1",
416 "v_tx_nss_2",
417 "v_tx_nss_3",
418 "v_tx_nss_4",
419 };
420
mt792x_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)421 void mt792x_get_et_strings(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
422 u32 sset, u8 *data)
423 {
424 if (sset != ETH_SS_STATS)
425 return;
426
427 memcpy(data, mt792x_gstrings_stats, sizeof(mt792x_gstrings_stats));
428
429 data += sizeof(mt792x_gstrings_stats);
430 page_pool_ethtool_stats_get_strings(data);
431 }
432 EXPORT_SYMBOL_GPL(mt792x_get_et_strings);
433
mt792x_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)434 int mt792x_get_et_sset_count(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
435 int sset)
436 {
437 if (sset != ETH_SS_STATS)
438 return 0;
439
440 return ARRAY_SIZE(mt792x_gstrings_stats) +
441 page_pool_ethtool_stats_get_count();
442 }
443 EXPORT_SYMBOL_GPL(mt792x_get_et_sset_count);
444
445 static void
mt792x_ethtool_worker(void * wi_data,struct ieee80211_sta * sta)446 mt792x_ethtool_worker(void *wi_data, struct ieee80211_sta *sta)
447 {
448 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
449 struct mt76_ethtool_worker_info *wi = wi_data;
450
451 if (msta->vif->bss_conf.mt76.idx != wi->idx)
452 return;
453
454 mt76_ethtool_worker(wi, &msta->deflink.wcid.stats, true);
455 }
456
mt792x_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)457 void mt792x_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
458 struct ethtool_stats *stats, u64 *data)
459 {
460 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
461 int stats_size = ARRAY_SIZE(mt792x_gstrings_stats);
462 struct mt792x_phy *phy = mt792x_hw_phy(hw);
463 struct mt792x_dev *dev = phy->dev;
464 struct mt76_mib_stats *mib = &phy->mib;
465 struct mt76_ethtool_worker_info wi = {
466 .data = data,
467 .idx = mvif->bss_conf.mt76.idx,
468 };
469 int i, ei = 0;
470
471 mt792x_mutex_acquire(dev);
472
473 mt792x_mac_update_mib_stats(phy);
474
475 data[ei++] = mib->tx_ampdu_cnt;
476 data[ei++] = mib->tx_mpdu_attempts_cnt;
477 data[ei++] = mib->tx_mpdu_success_cnt;
478 data[ei++] = mib->tx_pkt_ebf_cnt;
479 data[ei++] = mib->tx_pkt_ibf_cnt;
480
481 /* Tx ampdu stat */
482 for (i = 0; i < 15; i++)
483 data[ei++] = phy->mt76->aggr_stats[i];
484
485 data[ei++] = phy->mib.ba_miss_cnt;
486
487 /* Tx Beamformer monitor */
488 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
489 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
490
491 /* Tx Beamformer Rx feedback monitor */
492 data[ei++] = mib->tx_bf_rx_fb_all_cnt;
493 data[ei++] = mib->tx_bf_rx_fb_he_cnt;
494 data[ei++] = mib->tx_bf_rx_fb_vht_cnt;
495 data[ei++] = mib->tx_bf_rx_fb_ht_cnt;
496
497 /* Tx amsdu info (pack-count histogram) */
498 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++)
499 data[ei++] = mib->tx_amsdu[i];
500
501 /* rx counters */
502 data[ei++] = mib->rx_mpdu_cnt;
503 data[ei++] = mib->rx_ampdu_cnt;
504 data[ei++] = mib->rx_ampdu_bytes_cnt;
505 data[ei++] = mib->rx_ba_cnt;
506
507 /* Add values for all stations owned by this vif */
508 wi.initial_stat_idx = ei;
509 ieee80211_iterate_stations_atomic(hw, mt792x_ethtool_worker, &wi);
510
511 mt792x_mutex_release(dev);
512
513 if (!wi.sta_count)
514 return;
515
516 ei += wi.worker_stat_count;
517
518 mt76_ethtool_page_pool_stats(&dev->mt76, &data[ei], &ei);
519 stats_size += page_pool_ethtool_stats_get_count();
520
521 if (ei != stats_size)
522 dev_err(dev->mt76.dev, "ei: %d SSTATS_LEN: %d", ei,
523 stats_size);
524 }
525 EXPORT_SYMBOL_GPL(mt792x_get_et_stats);
526
mt792x_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)527 void mt792x_sta_statistics(struct ieee80211_hw *hw,
528 struct ieee80211_vif *vif,
529 struct ieee80211_sta *sta,
530 struct station_info *sinfo)
531 {
532 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
533 struct rate_info *txrate = &msta->deflink.wcid.rate;
534
535 if (!txrate->legacy && !txrate->flags)
536 return;
537
538 if (txrate->legacy) {
539 sinfo->txrate.legacy = txrate->legacy;
540 } else {
541 sinfo->txrate.mcs = txrate->mcs;
542 sinfo->txrate.nss = txrate->nss;
543 sinfo->txrate.bw = txrate->bw;
544 sinfo->txrate.he_gi = txrate->he_gi;
545 sinfo->txrate.he_dcm = txrate->he_dcm;
546 sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc;
547 }
548 sinfo->tx_failed = msta->deflink.wcid.stats.tx_failed;
549 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
550
551 sinfo->tx_retries = msta->deflink.wcid.stats.tx_retries;
552 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
553
554 sinfo->txrate.flags = txrate->flags;
555 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
556
557 sinfo->ack_signal = (s8)msta->deflink.ack_signal;
558 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL);
559
560 sinfo->avg_ack_signal = -(s8)ewma_avg_signal_read(&msta->deflink.avg_ack_signal);
561 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_ACK_SIGNAL_AVG);
562 }
563 EXPORT_SYMBOL_GPL(mt792x_sta_statistics);
564
mt792x_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)565 void mt792x_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
566 {
567 struct mt792x_phy *phy = mt792x_hw_phy(hw);
568 struct mt792x_dev *dev = phy->dev;
569
570 mt792x_mutex_acquire(dev);
571
572 phy->coverage_class = max_t(s16, coverage_class, 0);
573 mt792x_mac_set_timeing(phy);
574
575 mt792x_mutex_release(dev);
576 }
577 EXPORT_SYMBOL_GPL(mt792x_set_coverage_class);
578
mt792x_init_wiphy(struct ieee80211_hw * hw)579 int mt792x_init_wiphy(struct ieee80211_hw *hw)
580 {
581 struct mt792x_phy *phy = mt792x_hw_phy(hw);
582 struct mt792x_dev *dev = phy->dev;
583 struct wiphy *wiphy = hw->wiphy;
584
585 hw->queues = 4;
586 if (dev->has_eht) {
587 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_EHT;
588 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_EHT;
589 } else {
590 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
591 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
592 }
593 hw->netdev_features = NETIF_F_RXCSUM;
594
595 hw->radiotap_timestamp.units_pos =
596 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
597
598 phy->slottime = 9;
599
600 hw->sta_data_size = sizeof(struct mt792x_sta);
601 hw->vif_data_size = sizeof(struct mt792x_vif);
602 hw->chanctx_data_size = sizeof(struct mt792x_chanctx);
603
604 if (dev->fw_features & MT792x_FW_CAP_CNM) {
605 wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
606 wiphy->iface_combinations = if_comb_chanctx;
607 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb_chanctx);
608 } else {
609 wiphy->flags &= ~WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
610 wiphy->iface_combinations = if_comb;
611 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
612 }
613 wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP |
614 WIPHY_FLAG_4ADDR_STATION);
615 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
616 BIT(NL80211_IFTYPE_AP) |
617 BIT(NL80211_IFTYPE_P2P_CLIENT) |
618 BIT(NL80211_IFTYPE_P2P_GO);
619 wiphy->max_remain_on_channel_duration = 5000;
620 wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN;
621 wiphy->max_scan_ssids = 4;
622 wiphy->max_sched_scan_plan_interval =
623 MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL;
624 wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
625 wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID;
626 wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH;
627 wiphy->max_sched_scan_reqs = 1;
628 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH |
629 WIPHY_FLAG_SPLIT_SCAN_6GHZ;
630
631 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
632 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
633 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
634 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
635 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT);
636 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
637 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE);
638 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT);
639 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
640
641 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
642 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
643 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
644 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
645 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
646 ieee80211_hw_set(hw, SUPPORTS_PS);
647 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
648 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
649 ieee80211_hw_set(hw, CONNECTION_MONITOR);
650
651 if (dev->pm.enable)
652 ieee80211_hw_set(hw, CONNECTION_MONITOR);
653
654 hw->max_tx_fragments = 4;
655
656 return 0;
657 }
658 EXPORT_SYMBOL_GPL(mt792x_init_wiphy);
659
660 static u8
mt792x_get_offload_capability(struct device * dev,const char * fw_wm)661 mt792x_get_offload_capability(struct device *dev, const char *fw_wm)
662 {
663 const struct mt76_connac2_fw_trailer *hdr;
664 struct mt792x_realease_info *rel_info;
665 const struct firmware *fw;
666 int ret, i, offset = 0;
667 const u8 *data, *end;
668 u8 offload_caps = 0;
669
670 ret = request_firmware(&fw, fw_wm, dev);
671 if (ret)
672 return ret;
673
674 if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
675 dev_err(dev, "Invalid firmware\n");
676 goto out;
677 }
678
679 data = fw->data;
680 hdr = (const void *)(fw->data + fw->size - sizeof(*hdr));
681
682 for (i = 0; i < hdr->n_region; i++) {
683 const struct mt76_connac2_fw_region *region;
684
685 region = (const void *)((const u8 *)hdr -
686 (hdr->n_region - i) * sizeof(*region));
687 offset += le32_to_cpu(region->len);
688 }
689
690 data += offset + 16;
691 rel_info = (struct mt792x_realease_info *)data;
692 data += sizeof(*rel_info);
693 end = data + le16_to_cpu(rel_info->len);
694
695 while (data < end) {
696 rel_info = (struct mt792x_realease_info *)data;
697 data += sizeof(*rel_info);
698
699 if (rel_info->tag == MT792x_FW_TAG_FEATURE) {
700 struct mt792x_fw_features *features;
701
702 features = (struct mt792x_fw_features *)data;
703 offload_caps = features->data;
704 break;
705 }
706
707 data += le16_to_cpu(rel_info->len) + rel_info->pad_len;
708 }
709
710 out:
711 release_firmware(fw);
712
713 return offload_caps;
714 }
715
716 struct ieee80211_ops *
mt792x_get_mac80211_ops(struct device * dev,const struct ieee80211_ops * mac80211_ops,void * drv_data,u8 * fw_features)717 mt792x_get_mac80211_ops(struct device *dev,
718 const struct ieee80211_ops *mac80211_ops,
719 void *drv_data, u8 *fw_features)
720 {
721 struct ieee80211_ops *ops;
722
723 ops = devm_kmemdup(dev, mac80211_ops, sizeof(struct ieee80211_ops),
724 GFP_KERNEL);
725 if (!ops)
726 return NULL;
727
728 *fw_features = mt792x_get_offload_capability(dev, drv_data);
729 if (!(*fw_features & MT792x_FW_CAP_CNM)) {
730 ops->remain_on_channel = NULL;
731 ops->cancel_remain_on_channel = NULL;
732 ops->add_chanctx = ieee80211_emulate_add_chanctx;
733 ops->remove_chanctx = ieee80211_emulate_remove_chanctx;
734 ops->change_chanctx = ieee80211_emulate_change_chanctx;
735 ops->switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx;
736 ops->assign_vif_chanctx = NULL;
737 ops->unassign_vif_chanctx = NULL;
738 ops->mgd_prepare_tx = NULL;
739 ops->mgd_complete_tx = NULL;
740 }
741 return ops;
742 }
743 EXPORT_SYMBOL_GPL(mt792x_get_mac80211_ops);
744
mt792x_init_wcid(struct mt792x_dev * dev)745 int mt792x_init_wcid(struct mt792x_dev *dev)
746 {
747 int idx;
748
749 /* Beacon and mgmt frames should occupy wcid 0 */
750 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
751 if (idx)
752 return -ENOSPC;
753
754 dev->mt76.global_wcid.idx = idx;
755 dev->mt76.global_wcid.hw_key_idx = -1;
756 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
757 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
758
759 return 0;
760 }
761 EXPORT_SYMBOL_GPL(mt792x_init_wcid);
762
mt792x_mcu_drv_pmctrl(struct mt792x_dev * dev)763 int mt792x_mcu_drv_pmctrl(struct mt792x_dev *dev)
764 {
765 struct mt76_phy *mphy = &dev->mt76.phy;
766 struct mt76_connac_pm *pm = &dev->pm;
767 int err = 0;
768
769 mutex_lock(&pm->mutex);
770
771 if (!test_bit(MT76_STATE_PM, &mphy->state))
772 goto out;
773
774 err = __mt792x_mcu_drv_pmctrl(dev);
775 out:
776 mutex_unlock(&pm->mutex);
777
778 if (err)
779 mt792x_reset(&dev->mt76);
780
781 return err;
782 }
783 EXPORT_SYMBOL_GPL(mt792x_mcu_drv_pmctrl);
784
mt792x_mcu_fw_pmctrl(struct mt792x_dev * dev)785 int mt792x_mcu_fw_pmctrl(struct mt792x_dev *dev)
786 {
787 struct mt76_phy *mphy = &dev->mt76.phy;
788 struct mt76_connac_pm *pm = &dev->pm;
789 int err = 0;
790
791 mutex_lock(&pm->mutex);
792
793 if (mt76_connac_skip_fw_pmctrl(mphy, pm))
794 goto out;
795
796 err = __mt792x_mcu_fw_pmctrl(dev);
797 out:
798 mutex_unlock(&pm->mutex);
799
800 if (err)
801 mt792x_reset(&dev->mt76);
802
803 return err;
804 }
805 EXPORT_SYMBOL_GPL(mt792x_mcu_fw_pmctrl);
806
__mt792xe_mcu_drv_pmctrl(struct mt792x_dev * dev)807 int __mt792xe_mcu_drv_pmctrl(struct mt792x_dev *dev)
808 {
809 int i, err = 0;
810
811 for (i = 0; i < MT792x_DRV_OWN_RETRY_COUNT; i++) {
812 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN);
813
814 if (dev->aspm_supported)
815 usleep_range(2000, 3000);
816
817 if (mt76_poll_msec_tick(dev, MT_CONN_ON_LPCTL,
818 PCIE_LPCR_HOST_OWN_SYNC, 0, 50, 1))
819 break;
820 }
821
822 if (i == MT792x_DRV_OWN_RETRY_COUNT) {
823 dev_err(dev->mt76.dev, "driver own failed\n");
824 err = -EIO;
825 }
826
827 return err;
828 }
829 EXPORT_SYMBOL_GPL(__mt792xe_mcu_drv_pmctrl);
830
mt792xe_mcu_drv_pmctrl(struct mt792x_dev * dev)831 int mt792xe_mcu_drv_pmctrl(struct mt792x_dev *dev)
832 {
833 struct mt76_phy *mphy = &dev->mt76.phy;
834 struct mt76_connac_pm *pm = &dev->pm;
835 int err;
836
837 err = __mt792xe_mcu_drv_pmctrl(dev);
838 if (err < 0)
839 goto out;
840
841 mt792x_wpdma_reinit_cond(dev);
842 clear_bit(MT76_STATE_PM, &mphy->state);
843
844 pm->stats.last_wake_event = jiffies;
845 pm->stats.doze_time += pm->stats.last_wake_event -
846 pm->stats.last_doze_event;
847 out:
848 return err;
849 }
850 EXPORT_SYMBOL_GPL(mt792xe_mcu_drv_pmctrl);
851
mt792xe_mcu_fw_pmctrl(struct mt792x_dev * dev)852 int mt792xe_mcu_fw_pmctrl(struct mt792x_dev *dev)
853 {
854 struct mt76_phy *mphy = &dev->mt76.phy;
855 struct mt76_connac_pm *pm = &dev->pm;
856 int i;
857
858 for (i = 0; i < MT792x_DRV_OWN_RETRY_COUNT; i++) {
859 mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN);
860 if (mt76_poll_msec_tick(dev, MT_CONN_ON_LPCTL,
861 PCIE_LPCR_HOST_OWN_SYNC, 4, 50, 1))
862 break;
863 }
864
865 if (i == MT792x_DRV_OWN_RETRY_COUNT) {
866 dev_err(dev->mt76.dev, "firmware own failed\n");
867 clear_bit(MT76_STATE_PM, &mphy->state);
868 return -EIO;
869 }
870
871 pm->stats.last_doze_event = jiffies;
872 pm->stats.awake_time += pm->stats.last_doze_event -
873 pm->stats.last_wake_event;
874
875 return 0;
876 }
877 EXPORT_SYMBOL_GPL(mt792xe_mcu_fw_pmctrl);
878
mt792x_load_firmware(struct mt792x_dev * dev)879 int mt792x_load_firmware(struct mt792x_dev *dev)
880 {
881 int ret;
882
883 ret = mt76_connac2_load_patch(&dev->mt76, mt792x_patch_name(dev));
884 if (ret)
885 return ret;
886
887 if (mt76_is_sdio(&dev->mt76)) {
888 /* activate again */
889 ret = __mt792x_mcu_fw_pmctrl(dev);
890 if (!ret)
891 ret = __mt792x_mcu_drv_pmctrl(dev);
892 }
893
894 ret = mt76_connac2_load_ram(&dev->mt76, mt792x_ram_name(dev), NULL);
895 if (ret)
896 return ret;
897
898 if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY,
899 MT_TOP_MISC2_FW_N9_RDY, 1500)) {
900 dev_err(dev->mt76.dev, "Timeout for initializing firmware\n");
901
902 return -EIO;
903 }
904
905 #ifdef CONFIG_PM
906 dev->mt76.hw->wiphy->wowlan = &mt76_connac_wowlan_support;
907 #endif /* CONFIG_PM */
908
909 dev_dbg(dev->mt76.dev, "Firmware init done\n");
910
911 return 0;
912 }
913 EXPORT_SYMBOL_GPL(mt792x_load_firmware);
914
915 MODULE_DESCRIPTION("MediaTek MT792x core driver");
916 MODULE_LICENSE("Dual BSD/GPL");
917 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
918