1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include <linux/etherdevice.h>
5 #include <linux/timekeeping.h>
6 #include "coredump.h"
7 #include "mt7915.h"
8 #include "../dma.h"
9 #include "mac.h"
10 #include "mcu.h"
11
12 #define to_rssi(field, rcpi) ((FIELD_GET(field, rcpi) - 220) / 2)
13
14 static const struct mt7915_dfs_radar_spec etsi_radar_specs = {
15 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
16 .radar_pattern = {
17 [5] = { 1, 0, 6, 32, 28, 0, 990, 5010, 17, 1, 1 },
18 [6] = { 1, 0, 9, 32, 28, 0, 615, 5010, 27, 1, 1 },
19 [7] = { 1, 0, 15, 32, 28, 0, 240, 445, 27, 1, 1 },
20 [8] = { 1, 0, 12, 32, 28, 0, 240, 510, 42, 1, 1 },
21 [9] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 12, 32, 28, { }, 126 },
22 [10] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 15, 32, 24, { }, 126 },
23 [11] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 18, 32, 28, { }, 54 },
24 [12] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 27, 32, 24, { }, 54 },
25 },
26 };
27
28 static const struct mt7915_dfs_radar_spec fcc_radar_specs = {
29 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
30 .radar_pattern = {
31 [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 },
32 [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 },
33 [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 },
34 [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 },
35 [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 },
36 },
37 };
38
39 static const struct mt7915_dfs_radar_spec jp_radar_specs = {
40 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
41 .radar_pattern = {
42 [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 },
43 [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 },
44 [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 },
45 [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 },
46 [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 },
47 [13] = { 1, 0, 7, 32, 28, 0, 3836, 3856, 14, 1, 1 },
48 [14] = { 1, 0, 6, 32, 28, 0, 615, 5010, 110, 1, 1 },
49 [15] = { 1, 1, 0, 0, 0, 0, 15, 5010, 110, 0, 0, 12, 32, 28 },
50 },
51 };
52
mt7915_rx_get_wcid(struct mt7915_dev * dev,u16 idx,bool unicast)53 static struct mt76_wcid *mt7915_rx_get_wcid(struct mt7915_dev *dev,
54 u16 idx, bool unicast)
55 {
56 struct mt7915_sta *sta;
57 struct mt76_wcid *wcid;
58
59 if (idx >= ARRAY_SIZE(dev->mt76.wcid))
60 return NULL;
61
62 wcid = rcu_dereference(dev->mt76.wcid[idx]);
63 if (unicast || !wcid)
64 return wcid;
65
66 if (!wcid->sta)
67 return NULL;
68
69 sta = container_of(wcid, struct mt7915_sta, wcid);
70 if (!sta->vif)
71 return NULL;
72
73 return &sta->vif->sta.wcid;
74 }
75
mt7915_mac_wtbl_update(struct mt7915_dev * dev,int idx,u32 mask)76 bool mt7915_mac_wtbl_update(struct mt7915_dev *dev, int idx, u32 mask)
77 {
78 mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX,
79 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask);
80
81 return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY,
82 0, 5000);
83 }
84
mt7915_mac_wtbl_lmac_addr(struct mt7915_dev * dev,u16 wcid,u8 dw)85 u32 mt7915_mac_wtbl_lmac_addr(struct mt7915_dev *dev, u16 wcid, u8 dw)
86 {
87 mt76_wr(dev, MT_WTBLON_TOP_WDUCR,
88 FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7)));
89
90 return MT_WTBL_LMAC_OFFS(wcid, dw);
91 }
92
mt7915_mac_sta_poll(struct mt7915_dev * dev)93 static void mt7915_mac_sta_poll(struct mt7915_dev *dev)
94 {
95 static const u8 ac_to_tid[] = {
96 [IEEE80211_AC_BE] = 0,
97 [IEEE80211_AC_BK] = 1,
98 [IEEE80211_AC_VI] = 4,
99 [IEEE80211_AC_VO] = 6
100 };
101 struct ieee80211_sta *sta;
102 struct mt7915_sta *msta;
103 struct rate_info *rate;
104 u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
105 LIST_HEAD(sta_poll_list);
106 int i;
107
108 spin_lock_bh(&dev->mt76.sta_poll_lock);
109 list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list);
110 spin_unlock_bh(&dev->mt76.sta_poll_lock);
111
112 rcu_read_lock();
113
114 while (true) {
115 bool clear = false;
116 u32 addr, val;
117 u16 idx;
118 s8 rssi[4];
119 u8 bw;
120
121 spin_lock_bh(&dev->mt76.sta_poll_lock);
122 if (list_empty(&sta_poll_list)) {
123 spin_unlock_bh(&dev->mt76.sta_poll_lock);
124 break;
125 }
126 msta = list_first_entry(&sta_poll_list,
127 struct mt7915_sta, wcid.poll_list);
128 list_del_init(&msta->wcid.poll_list);
129 spin_unlock_bh(&dev->mt76.sta_poll_lock);
130
131 idx = msta->wcid.idx;
132
133 /* refresh peer's airtime reporting */
134 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 20);
135
136 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
137 u32 tx_last = msta->airtime_ac[i];
138 u32 rx_last = msta->airtime_ac[i + 4];
139
140 msta->airtime_ac[i] = mt76_rr(dev, addr);
141 msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
142
143 tx_time[i] = msta->airtime_ac[i] - tx_last;
144 rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
145
146 if ((tx_last | rx_last) & BIT(30))
147 clear = true;
148
149 addr += 8;
150 }
151
152 if (clear) {
153 mt7915_mac_wtbl_update(dev, idx,
154 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
155 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
156 }
157
158 if (!msta->wcid.sta)
159 continue;
160
161 sta = container_of((void *)msta, struct ieee80211_sta,
162 drv_priv);
163 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
164 u8 queue = mt76_connac_lmac_mapping(i);
165 u32 tx_cur = tx_time[queue];
166 u32 rx_cur = rx_time[queue];
167 u8 tid = ac_to_tid[i];
168
169 if (!tx_cur && !rx_cur)
170 continue;
171
172 ieee80211_sta_register_airtime(sta, tid, tx_cur,
173 rx_cur);
174 }
175
176 /*
177 * We don't support reading GI info from txs packets.
178 * For accurate tx status reporting and AQL improvement,
179 * we need to make sure that flags match so polling GI
180 * from per-sta counters directly.
181 */
182 rate = &msta->wcid.rate;
183 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 7);
184 val = mt76_rr(dev, addr);
185
186 switch (rate->bw) {
187 case RATE_INFO_BW_160:
188 bw = IEEE80211_STA_RX_BW_160;
189 break;
190 case RATE_INFO_BW_80:
191 bw = IEEE80211_STA_RX_BW_80;
192 break;
193 case RATE_INFO_BW_40:
194 bw = IEEE80211_STA_RX_BW_40;
195 break;
196 default:
197 bw = IEEE80211_STA_RX_BW_20;
198 break;
199 }
200
201 if (rate->flags & RATE_INFO_FLAGS_HE_MCS) {
202 u8 offs = 24 + 2 * bw;
203
204 rate->he_gi = (val & (0x3 << offs)) >> offs;
205 } else if (rate->flags &
206 (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) {
207 if (val & BIT(12 + bw))
208 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
209 else
210 rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI;
211 }
212
213 /* get signal strength of resp frames (CTS/BA/ACK) */
214 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 30);
215 val = mt76_rr(dev, addr);
216
217 rssi[0] = to_rssi(GENMASK(7, 0), val);
218 rssi[1] = to_rssi(GENMASK(15, 8), val);
219 rssi[2] = to_rssi(GENMASK(23, 16), val);
220 rssi[3] = to_rssi(GENMASK(31, 14), val);
221
222 msta->ack_signal =
223 mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi);
224
225 ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
226 }
227
228 rcu_read_unlock();
229 }
230
mt7915_mac_enable_rtscts(struct mt7915_dev * dev,struct ieee80211_vif * vif,bool enable)231 void mt7915_mac_enable_rtscts(struct mt7915_dev *dev,
232 struct ieee80211_vif *vif, bool enable)
233 {
234 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
235 u32 addr;
236
237 addr = mt7915_mac_wtbl_lmac_addr(dev, mvif->sta.wcid.idx, 5);
238 if (enable)
239 mt76_set(dev, addr, BIT(5));
240 else
241 mt76_clear(dev, addr, BIT(5));
242 }
243
244 static void
mt7915_wed_check_ppe(struct mt7915_dev * dev,struct mt76_queue * q,struct mt7915_sta * msta,struct sk_buff * skb,u32 info)245 mt7915_wed_check_ppe(struct mt7915_dev *dev, struct mt76_queue *q,
246 struct mt7915_sta *msta, struct sk_buff *skb,
247 u32 info)
248 {
249 struct ieee80211_vif *vif;
250 struct wireless_dev *wdev;
251
252 if (!msta || !msta->vif)
253 return;
254
255 if (!mt76_queue_is_wed_rx(q))
256 return;
257
258 if (!(info & MT_DMA_INFO_PPE_VLD))
259 return;
260
261 vif = container_of((void *)msta->vif, struct ieee80211_vif,
262 drv_priv);
263 wdev = ieee80211_vif_to_wdev(vif);
264 skb->dev = wdev->netdev;
265
266 mtk_wed_device_ppe_check(&dev->mt76.mmio.wed, skb,
267 FIELD_GET(MT_DMA_PPE_CPU_REASON, info),
268 FIELD_GET(MT_DMA_PPE_ENTRY, info));
269 }
270
271 static int
mt7915_mac_fill_rx(struct mt7915_dev * dev,struct sk_buff * skb,enum mt76_rxq_id q,u32 * info)272 mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb,
273 enum mt76_rxq_id q, u32 *info)
274 {
275 struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
276 struct mt76_phy *mphy = &dev->mt76.phy;
277 struct mt7915_phy *phy = &dev->phy;
278 struct ieee80211_supported_band *sband;
279 __le32 *rxd = (__le32 *)skb->data;
280 __le32 *rxv = NULL;
281 u32 rxd0 = le32_to_cpu(rxd[0]);
282 u32 rxd1 = le32_to_cpu(rxd[1]);
283 u32 rxd2 = le32_to_cpu(rxd[2]);
284 u32 rxd3 = le32_to_cpu(rxd[3]);
285 u32 rxd4 = le32_to_cpu(rxd[4]);
286 u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM;
287 bool unicast, insert_ccmp_hdr = false;
288 u8 remove_pad, amsdu_info;
289 u8 mode = 0, qos_ctl = 0;
290 struct mt7915_sta *msta = NULL;
291 u32 csum_status = *(u32 *)skb->cb;
292 bool hdr_trans;
293 u16 hdr_gap;
294 u16 seq_ctrl = 0;
295 __le16 fc = 0;
296 int idx;
297
298 memset(status, 0, sizeof(*status));
299
300 if ((rxd1 & MT_RXD1_NORMAL_BAND_IDX) && !phy->mt76->band_idx) {
301 mphy = dev->mt76.phys[MT_BAND1];
302 if (!mphy)
303 return -EINVAL;
304
305 phy = mphy->priv;
306 status->phy_idx = 1;
307 }
308
309 if (!test_bit(MT76_STATE_RUNNING, &mphy->state))
310 return -EINVAL;
311
312 if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
313 return -EINVAL;
314
315 hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
316 if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
317 return -EINVAL;
318
319 /* ICV error or CCMP/BIP/WPI MIC error */
320 if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
321 status->flag |= RX_FLAG_ONLY_MONITOR;
322
323 unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
324 idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
325 status->wcid = mt7915_rx_get_wcid(dev, idx, unicast);
326
327 if (status->wcid) {
328 msta = container_of(status->wcid, struct mt7915_sta, wcid);
329 spin_lock_bh(&dev->mt76.sta_poll_lock);
330 if (list_empty(&msta->wcid.poll_list))
331 list_add_tail(&msta->wcid.poll_list,
332 &dev->mt76.sta_poll_list);
333 spin_unlock_bh(&dev->mt76.sta_poll_lock);
334 }
335
336 status->freq = mphy->chandef.chan->center_freq;
337 status->band = mphy->chandef.chan->band;
338 if (status->band == NL80211_BAND_5GHZ)
339 sband = &mphy->sband_5g.sband;
340 else if (status->band == NL80211_BAND_6GHZ)
341 sband = &mphy->sband_6g.sband;
342 else
343 sband = &mphy->sband_2g.sband;
344
345 if (!sband->channels)
346 return -EINVAL;
347
348 if ((rxd0 & csum_mask) == csum_mask &&
349 !(csum_status & (BIT(0) | BIT(2) | BIT(3))))
350 skb->ip_summed = CHECKSUM_UNNECESSARY;
351
352 if (rxd1 & MT_RXD1_NORMAL_FCS_ERR)
353 status->flag |= RX_FLAG_FAILED_FCS_CRC;
354
355 if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR)
356 status->flag |= RX_FLAG_MMIC_ERROR;
357
358 if (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1) != 0 &&
359 !(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) {
360 status->flag |= RX_FLAG_DECRYPTED;
361 status->flag |= RX_FLAG_IV_STRIPPED;
362 status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED;
363 }
364
365 remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2);
366
367 if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR)
368 return -EINVAL;
369
370 rxd += 6;
371 if (rxd1 & MT_RXD1_NORMAL_GROUP_4) {
372 u32 v0 = le32_to_cpu(rxd[0]);
373 u32 v2 = le32_to_cpu(rxd[2]);
374
375 fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0));
376 qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2);
377 seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2);
378
379 rxd += 4;
380 if ((u8 *)rxd - skb->data >= skb->len)
381 return -EINVAL;
382 }
383
384 if (rxd1 & MT_RXD1_NORMAL_GROUP_1) {
385 u8 *data = (u8 *)rxd;
386
387 if (status->flag & RX_FLAG_DECRYPTED) {
388 switch (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1)) {
389 case MT_CIPHER_AES_CCMP:
390 case MT_CIPHER_CCMP_CCX:
391 case MT_CIPHER_CCMP_256:
392 insert_ccmp_hdr =
393 FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2);
394 fallthrough;
395 case MT_CIPHER_TKIP:
396 case MT_CIPHER_TKIP_NO_MIC:
397 case MT_CIPHER_GCMP:
398 case MT_CIPHER_GCMP_256:
399 status->iv[0] = data[5];
400 status->iv[1] = data[4];
401 status->iv[2] = data[3];
402 status->iv[3] = data[2];
403 status->iv[4] = data[1];
404 status->iv[5] = data[0];
405 break;
406 default:
407 break;
408 }
409 }
410 rxd += 4;
411 if ((u8 *)rxd - skb->data >= skb->len)
412 return -EINVAL;
413 }
414
415 if (rxd1 & MT_RXD1_NORMAL_GROUP_2) {
416 status->timestamp = le32_to_cpu(rxd[0]);
417 status->flag |= RX_FLAG_MACTIME_START;
418
419 if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) {
420 status->flag |= RX_FLAG_AMPDU_DETAILS;
421
422 /* all subframes of an A-MPDU have the same timestamp */
423 if (phy->rx_ampdu_ts != status->timestamp) {
424 if (!++phy->ampdu_ref)
425 phy->ampdu_ref++;
426 }
427 phy->rx_ampdu_ts = status->timestamp;
428
429 status->ampdu_ref = phy->ampdu_ref;
430 }
431
432 rxd += 2;
433 if ((u8 *)rxd - skb->data >= skb->len)
434 return -EINVAL;
435 }
436
437 /* RXD Group 3 - P-RXV */
438 if (rxd1 & MT_RXD1_NORMAL_GROUP_3) {
439 u32 v0, v1;
440 int ret;
441
442 rxv = rxd;
443 rxd += 2;
444 if ((u8 *)rxd - skb->data >= skb->len)
445 return -EINVAL;
446
447 v0 = le32_to_cpu(rxv[0]);
448 v1 = le32_to_cpu(rxv[1]);
449
450 if (v0 & MT_PRXV_HT_AD_CODE)
451 status->enc_flags |= RX_ENC_FLAG_LDPC;
452
453 status->chains = mphy->antenna_mask;
454 status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1);
455 status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1);
456 status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1);
457 status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1);
458
459 /* RXD Group 5 - C-RXV */
460 if (rxd1 & MT_RXD1_NORMAL_GROUP_5) {
461 rxd += 18;
462 if ((u8 *)rxd - skb->data >= skb->len)
463 return -EINVAL;
464 }
465
466 if (!is_mt7915(&dev->mt76) || (rxd1 & MT_RXD1_NORMAL_GROUP_5)) {
467 ret = mt76_connac2_mac_fill_rx_rate(&dev->mt76, status,
468 sband, rxv, &mode);
469 if (ret < 0)
470 return ret;
471 }
472 }
473
474 amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4);
475 status->amsdu = !!amsdu_info;
476 if (status->amsdu) {
477 status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME;
478 status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME;
479 }
480
481 hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad;
482 if (hdr_trans && ieee80211_has_morefrags(fc)) {
483 struct ieee80211_vif *vif;
484 int err;
485
486 if (!msta || !msta->vif)
487 return -EINVAL;
488
489 vif = container_of((void *)msta->vif, struct ieee80211_vif,
490 drv_priv);
491 err = mt76_connac2_reverse_frag0_hdr_trans(vif, skb, hdr_gap);
492 if (err)
493 return err;
494
495 hdr_trans = false;
496 } else {
497 int pad_start = 0;
498
499 skb_pull(skb, hdr_gap);
500 if (!hdr_trans && status->amsdu) {
501 pad_start = ieee80211_get_hdrlen_from_skb(skb);
502 } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) {
503 /*
504 * When header translation failure is indicated,
505 * the hardware will insert an extra 2-byte field
506 * containing the data length after the protocol
507 * type field. This happens either when the LLC-SNAP
508 * pattern did not match, or if a VLAN header was
509 * detected.
510 */
511 pad_start = 12;
512 if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q)
513 pad_start += 4;
514 else
515 pad_start = 0;
516 }
517
518 if (pad_start) {
519 memmove(skb->data + 2, skb->data, pad_start);
520 skb_pull(skb, 2);
521 }
522 }
523
524 if (!hdr_trans) {
525 struct ieee80211_hdr *hdr;
526
527 if (insert_ccmp_hdr) {
528 u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
529
530 mt76_insert_ccmp_hdr(skb, key_id);
531 }
532
533 hdr = mt76_skb_get_hdr(skb);
534 fc = hdr->frame_control;
535 if (ieee80211_is_data_qos(fc)) {
536 seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
537 qos_ctl = *ieee80211_get_qos_ctl(hdr);
538 }
539 } else {
540 status->flag |= RX_FLAG_8023;
541 mt7915_wed_check_ppe(dev, &dev->mt76.q_rx[q], msta, skb,
542 *info);
543 }
544
545 if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023))
546 mt76_connac2_mac_decode_he_radiotap(&dev->mt76, skb, rxv, mode);
547
548 if (!status->wcid || !ieee80211_is_data_qos(fc))
549 return 0;
550
551 status->aggr = unicast &&
552 !ieee80211_is_qos_nullfunc(fc);
553 status->qos_ctl = qos_ctl;
554 status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl);
555
556 return 0;
557 }
558
559 static void
mt7915_mac_fill_rx_vector(struct mt7915_dev * dev,struct sk_buff * skb)560 mt7915_mac_fill_rx_vector(struct mt7915_dev *dev, struct sk_buff *skb)
561 {
562 #ifdef CONFIG_NL80211_TESTMODE
563 struct mt7915_phy *phy = &dev->phy;
564 __le32 *rxd = (__le32 *)skb->data;
565 __le32 *rxv_hdr = rxd + 2;
566 __le32 *rxv = rxd + 4;
567 u32 rcpi, ib_rssi, wb_rssi, v20, v21;
568 u8 band_idx;
569 s32 foe;
570 u8 snr;
571 int i;
572
573 band_idx = le32_get_bits(rxv_hdr[1], MT_RXV_HDR_BAND_IDX);
574 if (band_idx && !phy->mt76->band_idx) {
575 phy = mt7915_ext_phy(dev);
576 if (!phy)
577 goto out;
578 }
579
580 rcpi = le32_to_cpu(rxv[6]);
581 ib_rssi = le32_to_cpu(rxv[7]);
582 wb_rssi = le32_to_cpu(rxv[8]) >> 5;
583
584 for (i = 0; i < 4; i++, rcpi >>= 8, ib_rssi >>= 8, wb_rssi >>= 9) {
585 if (i == 3)
586 wb_rssi = le32_to_cpu(rxv[9]);
587
588 phy->test.last_rcpi[i] = rcpi & 0xff;
589 phy->test.last_ib_rssi[i] = ib_rssi & 0xff;
590 phy->test.last_wb_rssi[i] = wb_rssi & 0xff;
591 }
592
593 v20 = le32_to_cpu(rxv[20]);
594 v21 = le32_to_cpu(rxv[21]);
595
596 foe = FIELD_GET(MT_CRXV_FOE_LO, v20) |
597 (FIELD_GET(MT_CRXV_FOE_HI, v21) << MT_CRXV_FOE_SHIFT);
598
599 snr = FIELD_GET(MT_CRXV_SNR, v20) - 16;
600
601 phy->test.last_freq_offset = foe;
602 phy->test.last_snr = snr;
603 out:
604 #endif
605 dev_kfree_skb(skb);
606 }
607
608 static void
mt7915_mac_write_txwi_tm(struct mt7915_phy * phy,__le32 * txwi,struct sk_buff * skb)609 mt7915_mac_write_txwi_tm(struct mt7915_phy *phy, __le32 *txwi,
610 struct sk_buff *skb)
611 {
612 #ifdef CONFIG_NL80211_TESTMODE
613 struct mt76_testmode_data *td = &phy->mt76->test;
614 const struct ieee80211_rate *r;
615 u8 bw, mode, nss = td->tx_rate_nss;
616 u8 rate_idx = td->tx_rate_idx;
617 u16 rateval = 0;
618 u32 val;
619 bool cck = false;
620 int band;
621
622 if (skb != phy->mt76->test.tx_skb)
623 return;
624
625 switch (td->tx_rate_mode) {
626 case MT76_TM_TX_MODE_HT:
627 nss = 1 + (rate_idx >> 3);
628 mode = MT_PHY_TYPE_HT;
629 break;
630 case MT76_TM_TX_MODE_VHT:
631 mode = MT_PHY_TYPE_VHT;
632 break;
633 case MT76_TM_TX_MODE_HE_SU:
634 mode = MT_PHY_TYPE_HE_SU;
635 break;
636 case MT76_TM_TX_MODE_HE_EXT_SU:
637 mode = MT_PHY_TYPE_HE_EXT_SU;
638 break;
639 case MT76_TM_TX_MODE_HE_TB:
640 mode = MT_PHY_TYPE_HE_TB;
641 break;
642 case MT76_TM_TX_MODE_HE_MU:
643 mode = MT_PHY_TYPE_HE_MU;
644 break;
645 case MT76_TM_TX_MODE_CCK:
646 cck = true;
647 fallthrough;
648 case MT76_TM_TX_MODE_OFDM:
649 band = phy->mt76->chandef.chan->band;
650 if (band == NL80211_BAND_2GHZ && !cck)
651 rate_idx += 4;
652
653 r = &phy->mt76->hw->wiphy->bands[band]->bitrates[rate_idx];
654 val = cck ? r->hw_value_short : r->hw_value;
655
656 mode = val >> 8;
657 rate_idx = val & 0xff;
658 break;
659 default:
660 mode = MT_PHY_TYPE_OFDM;
661 break;
662 }
663
664 switch (phy->mt76->chandef.width) {
665 case NL80211_CHAN_WIDTH_40:
666 bw = 1;
667 break;
668 case NL80211_CHAN_WIDTH_80:
669 bw = 2;
670 break;
671 case NL80211_CHAN_WIDTH_80P80:
672 case NL80211_CHAN_WIDTH_160:
673 bw = 3;
674 break;
675 default:
676 bw = 0;
677 break;
678 }
679
680 if (td->tx_rate_stbc && nss == 1) {
681 nss++;
682 rateval |= MT_TX_RATE_STBC;
683 }
684
685 rateval |= FIELD_PREP(MT_TX_RATE_IDX, rate_idx) |
686 FIELD_PREP(MT_TX_RATE_MODE, mode) |
687 FIELD_PREP(MT_TX_RATE_NSS, nss - 1);
688
689 txwi[2] |= cpu_to_le32(MT_TXD2_FIX_RATE);
690
691 le32p_replace_bits(&txwi[3], 1, MT_TXD3_REM_TX_COUNT);
692 if (td->tx_rate_mode < MT76_TM_TX_MODE_HT)
693 txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
694
695 val = MT_TXD6_FIXED_BW |
696 FIELD_PREP(MT_TXD6_BW, bw) |
697 FIELD_PREP(MT_TXD6_TX_RATE, rateval) |
698 FIELD_PREP(MT_TXD6_SGI, td->tx_rate_sgi);
699
700 /* for HE_SU/HE_EXT_SU PPDU
701 * - 1x, 2x, 4x LTF + 0.8us GI
702 * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI
703 * for HE_MU PPDU
704 * - 2x, 4x LTF + 0.8us GI
705 * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI
706 * for HE_TB PPDU
707 * - 1x, 2x LTF + 1.6us GI
708 * - 4x LTF + 3.2us GI
709 */
710 if (mode >= MT_PHY_TYPE_HE_SU)
711 val |= FIELD_PREP(MT_TXD6_HELTF, td->tx_ltf);
712
713 if (td->tx_rate_ldpc || (bw > 0 && mode >= MT_PHY_TYPE_HE_SU))
714 val |= MT_TXD6_LDPC;
715
716 txwi[3] &= ~cpu_to_le32(MT_TXD3_SN_VALID);
717 txwi[6] |= cpu_to_le32(val);
718 txwi[7] |= cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX,
719 phy->test.spe_idx));
720 #endif
721 }
722
mt7915_mac_write_txwi(struct mt76_dev * dev,__le32 * txwi,struct sk_buff * skb,struct mt76_wcid * wcid,int pid,struct ieee80211_key_conf * key,enum mt76_txq_id qid,u32 changed)723 void mt7915_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi,
724 struct sk_buff *skb, struct mt76_wcid *wcid, int pid,
725 struct ieee80211_key_conf *key,
726 enum mt76_txq_id qid, u32 changed)
727 {
728 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
729 u8 phy_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2;
730 struct mt76_phy *mphy = &dev->phy;
731
732 if (phy_idx && dev->phys[MT_BAND1])
733 mphy = dev->phys[MT_BAND1];
734
735 mt76_connac2_mac_write_txwi(dev, txwi, skb, wcid, key, pid, qid, changed);
736
737 if (mt76_testmode_enabled(mphy))
738 mt7915_mac_write_txwi_tm(mphy->priv, txwi, skb);
739 }
740
mt7915_tx_prepare_skb(struct mt76_dev * mdev,void * txwi_ptr,enum mt76_txq_id qid,struct mt76_wcid * wcid,struct ieee80211_sta * sta,struct mt76_tx_info * tx_info)741 int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
742 enum mt76_txq_id qid, struct mt76_wcid *wcid,
743 struct ieee80211_sta *sta,
744 struct mt76_tx_info *tx_info)
745 {
746 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data;
747 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
748 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
749 struct ieee80211_key_conf *key = info->control.hw_key;
750 struct ieee80211_vif *vif = info->control.vif;
751 struct mt76_connac_fw_txp *txp;
752 struct mt76_txwi_cache *t;
753 int id, i, nbuf = tx_info->nbuf - 1;
754 u8 *txwi = (u8 *)txwi_ptr;
755 int pid;
756
757 if (unlikely(tx_info->skb->len <= ETH_HLEN))
758 return -EINVAL;
759
760 if (!wcid)
761 wcid = &dev->mt76.global_wcid;
762
763 if (sta) {
764 struct mt7915_sta *msta;
765
766 msta = (struct mt7915_sta *)sta->drv_priv;
767
768 if (time_after(jiffies, msta->jiffies + HZ / 4)) {
769 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
770 msta->jiffies = jiffies;
771 }
772 }
773
774 t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size);
775 t->skb = tx_info->skb;
776
777 id = mt76_token_consume(mdev, &t);
778 if (id < 0)
779 return id;
780
781 pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
782 mt7915_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, pid, key,
783 qid, 0);
784
785 txp = (struct mt76_connac_fw_txp *)(txwi + MT_TXD_SIZE);
786 for (i = 0; i < nbuf; i++) {
787 txp->buf[i] = cpu_to_le32(tx_info->buf[i + 1].addr);
788 txp->len[i] = cpu_to_le16(tx_info->buf[i + 1].len);
789 }
790 txp->nbuf = nbuf;
791
792 txp->flags = cpu_to_le16(MT_CT_INFO_APPLY_TXD | MT_CT_INFO_FROM_HOST);
793
794 if (!key)
795 txp->flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME);
796
797 if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) &&
798 ieee80211_is_mgmt(hdr->frame_control))
799 txp->flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME);
800
801 if (vif) {
802 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
803
804 txp->bss_idx = mvif->mt76.idx;
805 }
806
807 txp->token = cpu_to_le16(id);
808 if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags))
809 txp->rept_wds_wcid = cpu_to_le16(wcid->idx);
810 else
811 txp->rept_wds_wcid = cpu_to_le16(0x3ff);
812 tx_info->skb = NULL;
813
814 /* pass partial skb header to fw */
815 tx_info->buf[1].len = MT_CT_PARSE_LEN;
816 tx_info->buf[1].skip_unmap = true;
817 tx_info->nbuf = MT_CT_DMA_BUF_NUM;
818
819 return 0;
820 }
821
mt7915_wed_init_buf(void * ptr,dma_addr_t phys,int token_id)822 u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id)
823 {
824 struct mt76_connac_fw_txp *txp = ptr + MT_TXD_SIZE;
825 __le32 *txwi = ptr;
826 u32 val;
827
828 memset(ptr, 0, MT_TXD_SIZE + sizeof(*txp));
829
830 val = FIELD_PREP(MT_TXD0_TX_BYTES, MT_TXD_SIZE) |
831 FIELD_PREP(MT_TXD0_PKT_FMT, MT_TX_TYPE_CT);
832 txwi[0] = cpu_to_le32(val);
833
834 val = MT_TXD1_LONG_FORMAT |
835 FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3);
836 txwi[1] = cpu_to_le32(val);
837
838 txp->token = cpu_to_le16(token_id);
839 txp->nbuf = 1;
840 txp->buf[0] = cpu_to_le32(phys + MT_TXD_SIZE + sizeof(*txp));
841
842 return MT_TXD_SIZE + sizeof(*txp);
843 }
844
845 static void
mt7915_mac_tx_free_prepare(struct mt7915_dev * dev)846 mt7915_mac_tx_free_prepare(struct mt7915_dev *dev)
847 {
848 struct mt76_dev *mdev = &dev->mt76;
849 struct mt76_phy *mphy_ext = mdev->phys[MT_BAND1];
850
851 /* clean DMA queues and unmap buffers first */
852 mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false);
853 mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false);
854 if (mphy_ext) {
855 mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_PSD], false);
856 mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_BE], false);
857 }
858 }
859
860 static void
mt7915_mac_tx_free_done(struct mt7915_dev * dev,struct list_head * free_list,bool wake)861 mt7915_mac_tx_free_done(struct mt7915_dev *dev,
862 struct list_head *free_list, bool wake)
863 {
864 struct sk_buff *skb, *tmp;
865
866 mt7915_mac_sta_poll(dev);
867
868 if (wake)
869 mt76_set_tx_blocked(&dev->mt76, false);
870
871 mt76_worker_schedule(&dev->mt76.tx_worker);
872
873 list_for_each_entry_safe(skb, tmp, free_list, list) {
874 skb_list_del_init(skb);
875 napi_consume_skb(skb, 1);
876 }
877 }
878
879 static void
mt7915_mac_tx_free(struct mt7915_dev * dev,void * data,int len)880 mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
881 {
882 struct mt76_connac_tx_free *free = data;
883 __le32 *tx_info = (__le32 *)(data + sizeof(*free));
884 struct mt76_dev *mdev = &dev->mt76;
885 struct mt76_txwi_cache *txwi;
886 struct ieee80211_sta *sta = NULL;
887 struct mt76_wcid *wcid = NULL;
888 LIST_HEAD(free_list);
889 void *end = data + len;
890 bool v3, wake = false;
891 u16 total, count = 0;
892 u32 txd = le32_to_cpu(free->txd);
893 __le32 *cur_info;
894
895 mt7915_mac_tx_free_prepare(dev);
896
897 total = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT);
898 v3 = (FIELD_GET(MT_TX_FREE_VER, txd) == 0x4);
899
900 for (cur_info = tx_info; count < total; cur_info++) {
901 u32 msdu, info;
902 u8 i;
903
904 if (WARN_ON_ONCE((void *)cur_info >= end))
905 return;
906
907 /*
908 * 1'b1: new wcid pair.
909 * 1'b0: msdu_id with the same 'wcid pair' as above.
910 */
911 info = le32_to_cpu(*cur_info);
912 if (info & MT_TX_FREE_PAIR) {
913 struct mt7915_sta *msta;
914 u16 idx;
915
916 idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info);
917 wcid = rcu_dereference(dev->mt76.wcid[idx]);
918 sta = wcid_to_sta(wcid);
919 if (!sta)
920 continue;
921
922 msta = container_of(wcid, struct mt7915_sta, wcid);
923 spin_lock_bh(&mdev->sta_poll_lock);
924 if (list_empty(&msta->wcid.poll_list))
925 list_add_tail(&msta->wcid.poll_list,
926 &mdev->sta_poll_list);
927 spin_unlock_bh(&mdev->sta_poll_lock);
928 continue;
929 }
930
931 if (!mtk_wed_device_active(&mdev->mmio.wed) && wcid) {
932 u32 tx_retries = 0, tx_failed = 0;
933
934 if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3)) {
935 tx_retries =
936 FIELD_GET(MT_TX_FREE_COUNT_V3, info) - 1;
937 tx_failed = tx_retries +
938 !!FIELD_GET(MT_TX_FREE_STAT_V3, info);
939 } else if (!v3 && (info & MT_TX_FREE_MPDU_HEADER)) {
940 tx_retries =
941 FIELD_GET(MT_TX_FREE_COUNT, info) - 1;
942 tx_failed = tx_retries +
943 !!FIELD_GET(MT_TX_FREE_STAT, info);
944 }
945 wcid->stats.tx_retries += tx_retries;
946 wcid->stats.tx_failed += tx_failed;
947 }
948
949 if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3))
950 continue;
951
952 for (i = 0; i < 1 + v3; i++) {
953 if (v3) {
954 msdu = (info >> (15 * i)) & MT_TX_FREE_MSDU_ID_V3;
955 if (msdu == MT_TX_FREE_MSDU_ID_V3)
956 continue;
957 } else {
958 msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info);
959 }
960 count++;
961 txwi = mt76_token_release(mdev, msdu, &wake);
962 if (!txwi)
963 continue;
964
965 mt76_connac2_txwi_free(mdev, txwi, sta, &free_list);
966 }
967 }
968
969 mt7915_mac_tx_free_done(dev, &free_list, wake);
970 }
971
972 static void
mt7915_mac_tx_free_v0(struct mt7915_dev * dev,void * data,int len)973 mt7915_mac_tx_free_v0(struct mt7915_dev *dev, void *data, int len)
974 {
975 struct mt76_connac_tx_free *free = data;
976 __le16 *info = (__le16 *)(data + sizeof(*free));
977 struct mt76_dev *mdev = &dev->mt76;
978 void *end = data + len;
979 LIST_HEAD(free_list);
980 bool wake = false;
981 u8 i, count;
982
983 mt7915_mac_tx_free_prepare(dev);
984
985 count = FIELD_GET(MT_TX_FREE_MSDU_CNT_V0, le16_to_cpu(free->ctrl));
986 if (WARN_ON_ONCE((void *)&info[count] > end))
987 return;
988
989 for (i = 0; i < count; i++) {
990 struct mt76_txwi_cache *txwi;
991 u16 msdu = le16_to_cpu(info[i]);
992
993 txwi = mt76_token_release(mdev, msdu, &wake);
994 if (!txwi)
995 continue;
996
997 mt76_connac2_txwi_free(mdev, txwi, NULL, &free_list);
998 }
999
1000 mt7915_mac_tx_free_done(dev, &free_list, wake);
1001 }
1002
mt7915_mac_add_txs(struct mt7915_dev * dev,void * data)1003 static void mt7915_mac_add_txs(struct mt7915_dev *dev, void *data)
1004 {
1005 struct mt7915_sta *msta = NULL;
1006 struct mt76_wcid *wcid;
1007 __le32 *txs_data = data;
1008 u16 wcidx;
1009 u8 pid;
1010
1011 wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID);
1012 pid = le32_get_bits(txs_data[3], MT_TXS3_PID);
1013
1014 if (pid < MT_PACKET_ID_WED)
1015 return;
1016
1017 if (wcidx >= mt7915_wtbl_size(dev))
1018 return;
1019
1020 rcu_read_lock();
1021
1022 wcid = rcu_dereference(dev->mt76.wcid[wcidx]);
1023 if (!wcid)
1024 goto out;
1025
1026 msta = container_of(wcid, struct mt7915_sta, wcid);
1027
1028 if (pid == MT_PACKET_ID_WED)
1029 mt76_connac2_mac_fill_txs(&dev->mt76, wcid, txs_data);
1030 else
1031 mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data);
1032
1033 if (!wcid->sta)
1034 goto out;
1035
1036 spin_lock_bh(&dev->mt76.sta_poll_lock);
1037 if (list_empty(&msta->wcid.poll_list))
1038 list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
1039 spin_unlock_bh(&dev->mt76.sta_poll_lock);
1040
1041 out:
1042 rcu_read_unlock();
1043 }
1044
mt7915_rx_check(struct mt76_dev * mdev,void * data,int len)1045 bool mt7915_rx_check(struct mt76_dev *mdev, void *data, int len)
1046 {
1047 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
1048 __le32 *rxd = (__le32 *)data;
1049 __le32 *end = (__le32 *)&rxd[len / 4];
1050 enum rx_pkt_type type;
1051
1052 type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE);
1053
1054 switch (type) {
1055 case PKT_TYPE_TXRX_NOTIFY:
1056 mt7915_mac_tx_free(dev, data, len);
1057 return false;
1058 case PKT_TYPE_TXRX_NOTIFY_V0:
1059 mt7915_mac_tx_free_v0(dev, data, len);
1060 return false;
1061 case PKT_TYPE_TXS:
1062 for (rxd += 2; rxd + 8 <= end; rxd += 8)
1063 mt7915_mac_add_txs(dev, rxd);
1064 return false;
1065 case PKT_TYPE_RX_FW_MONITOR:
1066 mt7915_debugfs_rx_fw_monitor(dev, data, len);
1067 return false;
1068 default:
1069 return true;
1070 }
1071 }
1072
mt7915_queue_rx_skb(struct mt76_dev * mdev,enum mt76_rxq_id q,struct sk_buff * skb,u32 * info)1073 void mt7915_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
1074 struct sk_buff *skb, u32 *info)
1075 {
1076 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
1077 __le32 *rxd = (__le32 *)skb->data;
1078 __le32 *end = (__le32 *)&skb->data[skb->len];
1079 enum rx_pkt_type type;
1080
1081 type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE);
1082
1083 switch (type) {
1084 case PKT_TYPE_TXRX_NOTIFY:
1085 mt7915_mac_tx_free(dev, skb->data, skb->len);
1086 napi_consume_skb(skb, 1);
1087 break;
1088 case PKT_TYPE_TXRX_NOTIFY_V0:
1089 mt7915_mac_tx_free_v0(dev, skb->data, skb->len);
1090 napi_consume_skb(skb, 1);
1091 break;
1092 case PKT_TYPE_RX_EVENT:
1093 mt7915_mcu_rx_event(dev, skb);
1094 break;
1095 case PKT_TYPE_TXRXV:
1096 mt7915_mac_fill_rx_vector(dev, skb);
1097 break;
1098 case PKT_TYPE_TXS:
1099 for (rxd += 2; rxd + 8 <= end; rxd += 8)
1100 mt7915_mac_add_txs(dev, rxd);
1101 dev_kfree_skb(skb);
1102 break;
1103 case PKT_TYPE_RX_FW_MONITOR:
1104 mt7915_debugfs_rx_fw_monitor(dev, skb->data, skb->len);
1105 dev_kfree_skb(skb);
1106 break;
1107 case PKT_TYPE_NORMAL:
1108 if (!mt7915_mac_fill_rx(dev, skb, q, info)) {
1109 mt76_rx(&dev->mt76, q, skb);
1110 return;
1111 }
1112 fallthrough;
1113 default:
1114 dev_kfree_skb(skb);
1115 break;
1116 }
1117 }
1118
mt7915_mac_cca_stats_reset(struct mt7915_phy * phy)1119 void mt7915_mac_cca_stats_reset(struct mt7915_phy *phy)
1120 {
1121 struct mt7915_dev *dev = phy->dev;
1122 u32 reg = MT_WF_PHY_RX_CTRL1(phy->mt76->band_idx);
1123
1124 mt76_clear(dev, reg, MT_WF_PHY_RX_CTRL1_STSCNT_EN);
1125 mt76_set(dev, reg, BIT(11) | BIT(9));
1126 }
1127
mt7915_mac_reset_counters(struct mt7915_phy * phy)1128 void mt7915_mac_reset_counters(struct mt7915_phy *phy)
1129 {
1130 struct mt7915_dev *dev = phy->dev;
1131 int i;
1132
1133 for (i = 0; i < 4; i++) {
1134 mt76_rr(dev, MT_TX_AGG_CNT(phy->mt76->band_idx, i));
1135 mt76_rr(dev, MT_TX_AGG_CNT2(phy->mt76->band_idx, i));
1136 }
1137
1138 phy->mt76->survey_time = ktime_get_boottime();
1139 memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats));
1140
1141 /* reset airtime counters */
1142 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(phy->mt76->band_idx),
1143 MT_WF_RMAC_MIB_RXTIME_CLR);
1144
1145 mt7915_mcu_get_chan_mib_info(phy, true);
1146 }
1147
mt7915_mac_set_timing(struct mt7915_phy * phy)1148 void mt7915_mac_set_timing(struct mt7915_phy *phy)
1149 {
1150 s16 coverage_class = phy->coverage_class;
1151 struct mt7915_dev *dev = phy->dev;
1152 struct mt7915_phy *ext_phy = mt7915_ext_phy(dev);
1153 u32 val, reg_offset;
1154 u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) |
1155 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48);
1156 u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) |
1157 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28);
1158 u8 band = phy->mt76->band_idx;
1159 int eifs_ofdm = 360, sifs = 10, offset;
1160 bool a_band = !(phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ);
1161
1162 if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
1163 return;
1164
1165 if (ext_phy)
1166 coverage_class = max_t(s16, dev->phy.coverage_class,
1167 ext_phy->coverage_class);
1168
1169 mt76_set(dev, MT_ARB_SCR(band),
1170 MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);
1171 udelay(1);
1172
1173 offset = 3 * coverage_class;
1174 reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) |
1175 FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset);
1176
1177 if (!is_mt7915(&dev->mt76)) {
1178 if (!a_band) {
1179 mt76_wr(dev, MT_TMAC_ICR1(band),
1180 FIELD_PREP(MT_IFS_EIFS_CCK, 314));
1181 eifs_ofdm = 78;
1182 } else {
1183 eifs_ofdm = 84;
1184 }
1185 } else if (a_band) {
1186 sifs = 16;
1187 }
1188
1189 mt76_wr(dev, MT_TMAC_CDTR(band), cck + reg_offset);
1190 mt76_wr(dev, MT_TMAC_ODTR(band), ofdm + reg_offset);
1191 mt76_wr(dev, MT_TMAC_ICR0(band),
1192 FIELD_PREP(MT_IFS_EIFS_OFDM, eifs_ofdm) |
1193 FIELD_PREP(MT_IFS_RIFS, 2) |
1194 FIELD_PREP(MT_IFS_SIFS, sifs) |
1195 FIELD_PREP(MT_IFS_SLOT, phy->slottime));
1196
1197 if (phy->slottime < 20 || a_band)
1198 val = MT7915_CFEND_RATE_DEFAULT;
1199 else
1200 val = MT7915_CFEND_RATE_11B;
1201
1202 mt76_rmw_field(dev, MT_AGG_ACR0(band), MT_AGG_ACR_CFEND_RATE, val);
1203 mt76_clear(dev, MT_ARB_SCR(band),
1204 MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);
1205 }
1206
mt7915_mac_enable_nf(struct mt7915_dev * dev,bool band)1207 void mt7915_mac_enable_nf(struct mt7915_dev *dev, bool band)
1208 {
1209 u32 reg;
1210
1211 reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RXTD12(band) :
1212 MT_WF_PHY_RXTD12_MT7916(band);
1213 mt76_set(dev, reg,
1214 MT_WF_PHY_RXTD12_IRPI_SW_CLR_ONLY |
1215 MT_WF_PHY_RXTD12_IRPI_SW_CLR);
1216
1217 reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RX_CTRL1(band) :
1218 MT_WF_PHY_RX_CTRL1_MT7916(band);
1219 mt76_set(dev, reg, FIELD_PREP(MT_WF_PHY_RX_CTRL1_IPI_EN, 0x5));
1220 }
1221
1222 static u8
mt7915_phy_get_nf(struct mt7915_phy * phy,int idx)1223 mt7915_phy_get_nf(struct mt7915_phy *phy, int idx)
1224 {
1225 static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 };
1226 struct mt7915_dev *dev = phy->dev;
1227 u32 val, sum = 0, n = 0;
1228 int nss, i;
1229
1230 for (nss = 0; nss < hweight8(phy->mt76->chainmask); nss++) {
1231 u32 reg = is_mt7915(&dev->mt76) ?
1232 MT_WF_IRPI_NSS(0, nss + (idx << dev->dbdc_support)) :
1233 MT_WF_IRPI_NSS_MT7916(idx, nss);
1234
1235 for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) {
1236 val = mt76_rr(dev, reg);
1237 sum += val * nf_power[i];
1238 n += val;
1239 }
1240 }
1241
1242 if (!n)
1243 return 0;
1244
1245 return sum / n;
1246 }
1247
mt7915_update_channel(struct mt76_phy * mphy)1248 void mt7915_update_channel(struct mt76_phy *mphy)
1249 {
1250 struct mt7915_phy *phy = (struct mt7915_phy *)mphy->priv;
1251 struct mt76_channel_state *state = mphy->chan_state;
1252 int nf;
1253
1254 mt7915_mcu_get_chan_mib_info(phy, false);
1255
1256 nf = mt7915_phy_get_nf(phy, phy->mt76->band_idx);
1257 if (!phy->noise)
1258 phy->noise = nf << 4;
1259 else if (nf)
1260 phy->noise += nf - (phy->noise >> 4);
1261
1262 state->noise = -(phy->noise >> 4);
1263 }
1264
1265 static bool
mt7915_wait_reset_state(struct mt7915_dev * dev,u32 state)1266 mt7915_wait_reset_state(struct mt7915_dev *dev, u32 state)
1267 {
1268 bool ret;
1269
1270 ret = wait_event_timeout(dev->reset_wait,
1271 (READ_ONCE(dev->recovery.state) & state),
1272 MT7915_RESET_TIMEOUT);
1273
1274 WARN(!ret, "Timeout waiting for MCU reset state %x\n", state);
1275 return ret;
1276 }
1277
1278 static void
mt7915_update_vif_beacon(void * priv,u8 * mac,struct ieee80211_vif * vif)1279 mt7915_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif)
1280 {
1281 struct ieee80211_hw *hw = priv;
1282
1283 switch (vif->type) {
1284 case NL80211_IFTYPE_MESH_POINT:
1285 case NL80211_IFTYPE_ADHOC:
1286 case NL80211_IFTYPE_AP:
1287 mt7915_mcu_add_beacon(hw, vif, vif->bss_conf.enable_beacon,
1288 BSS_CHANGED_BEACON_ENABLED);
1289 break;
1290 default:
1291 break;
1292 }
1293 }
1294
1295 static void
mt7915_update_beacons(struct mt7915_dev * dev)1296 mt7915_update_beacons(struct mt7915_dev *dev)
1297 {
1298 struct mt76_phy *mphy_ext = dev->mt76.phys[MT_BAND1];
1299
1300 ieee80211_iterate_active_interfaces(dev->mt76.hw,
1301 IEEE80211_IFACE_ITER_RESUME_ALL,
1302 mt7915_update_vif_beacon, dev->mt76.hw);
1303
1304 if (!mphy_ext)
1305 return;
1306
1307 ieee80211_iterate_active_interfaces(mphy_ext->hw,
1308 IEEE80211_IFACE_ITER_RESUME_ALL,
1309 mt7915_update_vif_beacon, mphy_ext->hw);
1310 }
1311
1312 static int
mt7915_mac_restart(struct mt7915_dev * dev)1313 mt7915_mac_restart(struct mt7915_dev *dev)
1314 {
1315 struct mt7915_phy *phy2;
1316 struct mt76_phy *ext_phy;
1317 struct mt76_dev *mdev = &dev->mt76;
1318 int i, ret;
1319
1320 ext_phy = dev->mt76.phys[MT_BAND1];
1321 phy2 = ext_phy ? ext_phy->priv : NULL;
1322
1323 if (dev->hif2) {
1324 mt76_wr(dev, MT_INT1_MASK_CSR, 0x0);
1325 mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0);
1326 }
1327
1328 if (dev_is_pci(mdev->dev)) {
1329 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
1330 if (dev->hif2) {
1331 if (is_mt7915(mdev))
1332 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0);
1333 else
1334 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0x0);
1335 }
1336 }
1337
1338 set_bit(MT76_RESET, &dev->mphy.state);
1339 set_bit(MT76_MCU_RESET, &dev->mphy.state);
1340 wake_up(&dev->mt76.mcu.wait);
1341 if (ext_phy) {
1342 set_bit(MT76_RESET, &ext_phy->state);
1343 set_bit(MT76_MCU_RESET, &ext_phy->state);
1344 }
1345
1346 /* lock/unlock all queues to ensure that no tx is pending */
1347 mt76_txq_schedule_all(&dev->mphy);
1348 if (ext_phy)
1349 mt76_txq_schedule_all(ext_phy);
1350
1351 /* disable all tx/rx napi */
1352 mt76_worker_disable(&dev->mt76.tx_worker);
1353 mt76_for_each_q_rx(mdev, i) {
1354 if (mdev->q_rx[i].ndesc)
1355 napi_disable(&dev->mt76.napi[i]);
1356 }
1357 napi_disable(&dev->mt76.tx_napi);
1358
1359 /* token reinit */
1360 mt76_connac2_tx_token_put(&dev->mt76);
1361 idr_init(&dev->mt76.token);
1362
1363 mt7915_dma_reset(dev, true);
1364
1365 local_bh_disable();
1366 mt76_for_each_q_rx(mdev, i) {
1367 if (mdev->q_rx[i].ndesc) {
1368 napi_enable(&dev->mt76.napi[i]);
1369 napi_schedule(&dev->mt76.napi[i]);
1370 }
1371 }
1372 local_bh_enable();
1373 clear_bit(MT76_MCU_RESET, &dev->mphy.state);
1374 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
1375
1376 mt76_wr(dev, MT_INT_MASK_CSR, dev->mt76.mmio.irqmask);
1377 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
1378
1379 if (dev->hif2) {
1380 mt76_wr(dev, MT_INT1_MASK_CSR, dev->mt76.mmio.irqmask);
1381 mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0);
1382 }
1383 if (dev_is_pci(mdev->dev)) {
1384 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
1385 if (dev->hif2) {
1386 if (is_mt7915(mdev))
1387 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
1388 else
1389 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0xff);
1390 }
1391 }
1392
1393 /* load firmware */
1394 ret = mt7915_mcu_init_firmware(dev);
1395 if (ret)
1396 goto out;
1397
1398 /* set the necessary init items */
1399 ret = mt7915_mcu_set_eeprom(dev);
1400 if (ret)
1401 goto out;
1402
1403 mt7915_mac_init(dev);
1404 mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband);
1405 mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband);
1406 ret = mt7915_txbf_init(dev);
1407
1408 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) {
1409 ret = mt7915_run(dev->mphy.hw);
1410 if (ret)
1411 goto out;
1412 }
1413
1414 if (ext_phy && test_bit(MT76_STATE_RUNNING, &ext_phy->state)) {
1415 ret = mt7915_run(ext_phy->hw);
1416 if (ret)
1417 goto out;
1418 }
1419
1420 out:
1421 /* reset done */
1422 clear_bit(MT76_RESET, &dev->mphy.state);
1423 if (phy2)
1424 clear_bit(MT76_RESET, &phy2->mt76->state);
1425
1426 local_bh_disable();
1427 napi_enable(&dev->mt76.tx_napi);
1428 napi_schedule(&dev->mt76.tx_napi);
1429 local_bh_enable();
1430
1431 mt76_worker_enable(&dev->mt76.tx_worker);
1432
1433 return ret;
1434 }
1435
1436 static void
mt7915_mac_full_reset(struct mt7915_dev * dev)1437 mt7915_mac_full_reset(struct mt7915_dev *dev)
1438 {
1439 struct mt76_phy *ext_phy;
1440 int i;
1441
1442 ext_phy = dev->mt76.phys[MT_BAND1];
1443
1444 dev->recovery.hw_full_reset = true;
1445
1446 wake_up(&dev->mt76.mcu.wait);
1447 ieee80211_stop_queues(mt76_hw(dev));
1448 if (ext_phy)
1449 ieee80211_stop_queues(ext_phy->hw);
1450
1451 cancel_delayed_work_sync(&dev->mphy.mac_work);
1452 if (ext_phy)
1453 cancel_delayed_work_sync(&ext_phy->mac_work);
1454
1455 mutex_lock(&dev->mt76.mutex);
1456 for (i = 0; i < 10; i++) {
1457 if (!mt7915_mac_restart(dev))
1458 break;
1459 }
1460 mutex_unlock(&dev->mt76.mutex);
1461
1462 if (i == 10)
1463 dev_err(dev->mt76.dev, "chip full reset failed\n");
1464
1465 ieee80211_restart_hw(mt76_hw(dev));
1466 if (ext_phy)
1467 ieee80211_restart_hw(ext_phy->hw);
1468
1469 ieee80211_wake_queues(mt76_hw(dev));
1470 if (ext_phy)
1471 ieee80211_wake_queues(ext_phy->hw);
1472
1473 dev->recovery.hw_full_reset = false;
1474 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
1475 MT7915_WATCHDOG_TIME);
1476 if (ext_phy)
1477 ieee80211_queue_delayed_work(ext_phy->hw,
1478 &ext_phy->mac_work,
1479 MT7915_WATCHDOG_TIME);
1480 }
1481
1482 /* system error recovery */
mt7915_mac_reset_work(struct work_struct * work)1483 void mt7915_mac_reset_work(struct work_struct *work)
1484 {
1485 struct mt7915_phy *phy2;
1486 struct mt76_phy *ext_phy;
1487 struct mt7915_dev *dev;
1488 int i;
1489
1490 dev = container_of(work, struct mt7915_dev, reset_work);
1491 ext_phy = dev->mt76.phys[MT_BAND1];
1492 phy2 = ext_phy ? ext_phy->priv : NULL;
1493
1494 /* chip full reset */
1495 if (dev->recovery.restart) {
1496 /* disable WA/WM WDT */
1497 mt76_clear(dev, MT_WFDMA0_MCU_HOST_INT_ENA,
1498 MT_MCU_CMD_WDT_MASK);
1499
1500 if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WA_WDT)
1501 dev->recovery.wa_reset_count++;
1502 else
1503 dev->recovery.wm_reset_count++;
1504
1505 mt7915_mac_full_reset(dev);
1506
1507 /* enable mcu irq */
1508 mt7915_irq_enable(dev, MT_INT_MCU_CMD);
1509 mt7915_irq_disable(dev, 0);
1510
1511 /* enable WA/WM WDT */
1512 mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
1513
1514 dev->recovery.state = MT_MCU_CMD_NORMAL_STATE;
1515 dev->recovery.restart = false;
1516 return;
1517 }
1518
1519 /* chip partial reset */
1520 if (!(READ_ONCE(dev->recovery.state) & MT_MCU_CMD_STOP_DMA))
1521 return;
1522
1523 if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
1524 mtk_wed_device_stop(&dev->mt76.mmio.wed);
1525 if (!is_mt798x(&dev->mt76))
1526 mt76_wr(dev, MT_INT_WED_MASK_CSR, 0);
1527 }
1528
1529 ieee80211_stop_queues(mt76_hw(dev));
1530 if (ext_phy)
1531 ieee80211_stop_queues(ext_phy->hw);
1532
1533 set_bit(MT76_RESET, &dev->mphy.state);
1534 set_bit(MT76_MCU_RESET, &dev->mphy.state);
1535 wake_up(&dev->mt76.mcu.wait);
1536 cancel_delayed_work_sync(&dev->mphy.mac_work);
1537 if (phy2) {
1538 set_bit(MT76_RESET, &phy2->mt76->state);
1539 cancel_delayed_work_sync(&phy2->mt76->mac_work);
1540 }
1541 mt76_worker_disable(&dev->mt76.tx_worker);
1542 mt76_for_each_q_rx(&dev->mt76, i)
1543 napi_disable(&dev->mt76.napi[i]);
1544 napi_disable(&dev->mt76.tx_napi);
1545
1546 mutex_lock(&dev->mt76.mutex);
1547
1548 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED);
1549
1550 if (mt7915_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) {
1551 mt7915_dma_reset(dev, false);
1552
1553 mt76_connac2_tx_token_put(&dev->mt76);
1554 idr_init(&dev->mt76.token);
1555
1556 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT);
1557 mt7915_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE);
1558 }
1559
1560 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
1561 mt7915_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
1562
1563 /* enable DMA Tx/Rx and interrupt */
1564 mt7915_dma_start(dev, false, false);
1565
1566 clear_bit(MT76_MCU_RESET, &dev->mphy.state);
1567 clear_bit(MT76_RESET, &dev->mphy.state);
1568 if (phy2)
1569 clear_bit(MT76_RESET, &phy2->mt76->state);
1570
1571 local_bh_disable();
1572 mt76_for_each_q_rx(&dev->mt76, i) {
1573 napi_enable(&dev->mt76.napi[i]);
1574 napi_schedule(&dev->mt76.napi[i]);
1575 }
1576 local_bh_enable();
1577
1578 tasklet_schedule(&dev->mt76.irq_tasklet);
1579
1580 mt76_worker_enable(&dev->mt76.tx_worker);
1581
1582 local_bh_disable();
1583 napi_enable(&dev->mt76.tx_napi);
1584 napi_schedule(&dev->mt76.tx_napi);
1585 local_bh_enable();
1586
1587 ieee80211_wake_queues(mt76_hw(dev));
1588 if (ext_phy)
1589 ieee80211_wake_queues(ext_phy->hw);
1590
1591 mutex_unlock(&dev->mt76.mutex);
1592
1593 mt7915_update_beacons(dev);
1594
1595 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
1596 MT7915_WATCHDOG_TIME);
1597 if (phy2)
1598 ieee80211_queue_delayed_work(ext_phy->hw,
1599 &phy2->mt76->mac_work,
1600 MT7915_WATCHDOG_TIME);
1601 }
1602
1603 /* firmware coredump */
mt7915_mac_dump_work(struct work_struct * work)1604 void mt7915_mac_dump_work(struct work_struct *work)
1605 {
1606 const struct mt7915_mem_region *mem_region;
1607 struct mt7915_crash_data *crash_data;
1608 struct mt7915_dev *dev;
1609 struct mt7915_mem_hdr *hdr;
1610 size_t buf_len;
1611 int i;
1612 u32 num;
1613 u8 *buf;
1614
1615 dev = container_of(work, struct mt7915_dev, dump_work);
1616
1617 mutex_lock(&dev->dump_mutex);
1618
1619 crash_data = mt7915_coredump_new(dev);
1620 if (!crash_data) {
1621 mutex_unlock(&dev->dump_mutex);
1622 goto skip_coredump;
1623 }
1624
1625 mem_region = mt7915_coredump_get_mem_layout(dev, &num);
1626 if (!mem_region || !crash_data->memdump_buf_len) {
1627 mutex_unlock(&dev->dump_mutex);
1628 goto skip_memdump;
1629 }
1630
1631 buf = crash_data->memdump_buf;
1632 buf_len = crash_data->memdump_buf_len;
1633
1634 /* dumping memory content... */
1635 memset(buf, 0, buf_len);
1636 for (i = 0; i < num; i++) {
1637 if (mem_region->len > buf_len) {
1638 dev_warn(dev->mt76.dev, "%s len %lu is too large\n",
1639 mem_region->name,
1640 (unsigned long)mem_region->len);
1641 break;
1642 }
1643
1644 /* reserve space for the header */
1645 hdr = (void *)buf;
1646 buf += sizeof(*hdr);
1647 buf_len -= sizeof(*hdr);
1648
1649 mt7915_memcpy_fromio(dev, buf, mem_region->start,
1650 mem_region->len);
1651
1652 hdr->start = mem_region->start;
1653 hdr->len = mem_region->len;
1654
1655 if (!mem_region->len)
1656 /* note: the header remains, just with zero length */
1657 break;
1658
1659 buf += mem_region->len;
1660 buf_len -= mem_region->len;
1661
1662 mem_region++;
1663 }
1664
1665 mutex_unlock(&dev->dump_mutex);
1666
1667 skip_memdump:
1668 mt7915_coredump_submit(dev);
1669 skip_coredump:
1670 queue_work(dev->mt76.wq, &dev->reset_work);
1671 }
1672
mt7915_reset(struct mt7915_dev * dev)1673 void mt7915_reset(struct mt7915_dev *dev)
1674 {
1675 if (!dev->recovery.hw_init_done)
1676 return;
1677
1678 if (dev->recovery.hw_full_reset)
1679 return;
1680
1681 /* wm/wa exception: do full recovery */
1682 if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WDT_MASK) {
1683 dev->recovery.restart = true;
1684 dev_info(dev->mt76.dev,
1685 "%s indicated firmware crash, attempting recovery\n",
1686 wiphy_name(dev->mt76.hw->wiphy));
1687
1688 mt7915_irq_disable(dev, MT_INT_MCU_CMD);
1689 queue_work(dev->mt76.wq, &dev->dump_work);
1690 return;
1691 }
1692
1693 queue_work(dev->mt76.wq, &dev->reset_work);
1694 wake_up(&dev->reset_wait);
1695 }
1696
mt7915_mac_update_stats(struct mt7915_phy * phy)1697 void mt7915_mac_update_stats(struct mt7915_phy *phy)
1698 {
1699 struct mt76_mib_stats *mib = &phy->mib;
1700 struct mt7915_dev *dev = phy->dev;
1701 int i, aggr0 = 0, aggr1, cnt;
1702 u8 band = phy->mt76->band_idx;
1703 u32 val;
1704
1705 cnt = mt76_rr(dev, MT_MIB_SDR3(band));
1706 mib->fcs_err_cnt += is_mt7915(&dev->mt76) ?
1707 FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK, cnt) :
1708 FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK_MT7916, cnt);
1709
1710 cnt = mt76_rr(dev, MT_MIB_SDR4(band));
1711 mib->rx_fifo_full_cnt += FIELD_GET(MT_MIB_SDR4_RX_FIFO_FULL_MASK, cnt);
1712
1713 cnt = mt76_rr(dev, MT_MIB_SDR5(band));
1714 mib->rx_mpdu_cnt += cnt;
1715
1716 cnt = mt76_rr(dev, MT_MIB_SDR6(band));
1717 mib->channel_idle_cnt += FIELD_GET(MT_MIB_SDR6_CHANNEL_IDL_CNT_MASK, cnt);
1718
1719 cnt = mt76_rr(dev, MT_MIB_SDR7(band));
1720 mib->rx_vector_mismatch_cnt +=
1721 FIELD_GET(MT_MIB_SDR7_RX_VECTOR_MISMATCH_CNT_MASK, cnt);
1722
1723 cnt = mt76_rr(dev, MT_MIB_SDR8(band));
1724 mib->rx_delimiter_fail_cnt +=
1725 FIELD_GET(MT_MIB_SDR8_RX_DELIMITER_FAIL_CNT_MASK, cnt);
1726
1727 cnt = mt76_rr(dev, MT_MIB_SDR10(band));
1728 mib->rx_mrdy_cnt += is_mt7915(&dev->mt76) ?
1729 FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK, cnt) :
1730 FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK_MT7916, cnt);
1731
1732 cnt = mt76_rr(dev, MT_MIB_SDR11(band));
1733 mib->rx_len_mismatch_cnt +=
1734 FIELD_GET(MT_MIB_SDR11_RX_LEN_MISMATCH_CNT_MASK, cnt);
1735
1736 cnt = mt76_rr(dev, MT_MIB_SDR12(band));
1737 mib->tx_ampdu_cnt += cnt;
1738
1739 cnt = mt76_rr(dev, MT_MIB_SDR13(band));
1740 mib->tx_stop_q_empty_cnt +=
1741 FIELD_GET(MT_MIB_SDR13_TX_STOP_Q_EMPTY_CNT_MASK, cnt);
1742
1743 cnt = mt76_rr(dev, MT_MIB_SDR14(band));
1744 mib->tx_mpdu_attempts_cnt += is_mt7915(&dev->mt76) ?
1745 FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK, cnt) :
1746 FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK_MT7916, cnt);
1747
1748 cnt = mt76_rr(dev, MT_MIB_SDR15(band));
1749 mib->tx_mpdu_success_cnt += is_mt7915(&dev->mt76) ?
1750 FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK, cnt) :
1751 FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK_MT7916, cnt);
1752
1753 cnt = mt76_rr(dev, MT_MIB_SDR16(band));
1754 mib->primary_cca_busy_time +=
1755 FIELD_GET(MT_MIB_SDR16_PRIMARY_CCA_BUSY_TIME_MASK, cnt);
1756
1757 cnt = mt76_rr(dev, MT_MIB_SDR17(band));
1758 mib->secondary_cca_busy_time +=
1759 FIELD_GET(MT_MIB_SDR17_SECONDARY_CCA_BUSY_TIME_MASK, cnt);
1760
1761 cnt = mt76_rr(dev, MT_MIB_SDR18(band));
1762 mib->primary_energy_detect_time +=
1763 FIELD_GET(MT_MIB_SDR18_PRIMARY_ENERGY_DETECT_TIME_MASK, cnt);
1764
1765 cnt = mt76_rr(dev, MT_MIB_SDR19(band));
1766 mib->cck_mdrdy_time += FIELD_GET(MT_MIB_SDR19_CCK_MDRDY_TIME_MASK, cnt);
1767
1768 cnt = mt76_rr(dev, MT_MIB_SDR20(band));
1769 mib->ofdm_mdrdy_time +=
1770 FIELD_GET(MT_MIB_SDR20_OFDM_VHT_MDRDY_TIME_MASK, cnt);
1771
1772 cnt = mt76_rr(dev, MT_MIB_SDR21(band));
1773 mib->green_mdrdy_time +=
1774 FIELD_GET(MT_MIB_SDR21_GREEN_MDRDY_TIME_MASK, cnt);
1775
1776 cnt = mt76_rr(dev, MT_MIB_SDR22(band));
1777 mib->rx_ampdu_cnt += cnt;
1778
1779 cnt = mt76_rr(dev, MT_MIB_SDR23(band));
1780 mib->rx_ampdu_bytes_cnt += cnt;
1781
1782 cnt = mt76_rr(dev, MT_MIB_SDR24(band));
1783 mib->rx_ampdu_valid_subframe_cnt += is_mt7915(&dev->mt76) ?
1784 FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK, cnt) :
1785 FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK_MT7916, cnt);
1786
1787 cnt = mt76_rr(dev, MT_MIB_SDR25(band));
1788 mib->rx_ampdu_valid_subframe_bytes_cnt += cnt;
1789
1790 cnt = mt76_rr(dev, MT_MIB_SDR27(band));
1791 mib->tx_rwp_fail_cnt +=
1792 FIELD_GET(MT_MIB_SDR27_TX_RWP_FAIL_CNT_MASK, cnt);
1793
1794 cnt = mt76_rr(dev, MT_MIB_SDR28(band));
1795 mib->tx_rwp_need_cnt +=
1796 FIELD_GET(MT_MIB_SDR28_TX_RWP_NEED_CNT_MASK, cnt);
1797
1798 cnt = mt76_rr(dev, MT_MIB_SDR29(band));
1799 mib->rx_pfdrop_cnt += is_mt7915(&dev->mt76) ?
1800 FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK, cnt) :
1801 FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK_MT7916, cnt);
1802
1803 cnt = mt76_rr(dev, MT_MIB_SDRVEC(band));
1804 mib->rx_vec_queue_overflow_drop_cnt += is_mt7915(&dev->mt76) ?
1805 FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK, cnt) :
1806 FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK_MT7916, cnt);
1807
1808 cnt = mt76_rr(dev, MT_MIB_SDR31(band));
1809 mib->rx_ba_cnt += cnt;
1810
1811 cnt = mt76_rr(dev, MT_MIB_SDRMUBF(band));
1812 mib->tx_bf_cnt += FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt);
1813
1814 cnt = mt76_rr(dev, MT_MIB_DR8(band));
1815 mib->tx_mu_mpdu_cnt += cnt;
1816
1817 cnt = mt76_rr(dev, MT_MIB_DR9(band));
1818 mib->tx_mu_acked_mpdu_cnt += cnt;
1819
1820 cnt = mt76_rr(dev, MT_MIB_DR11(band));
1821 mib->tx_su_acked_mpdu_cnt += cnt;
1822
1823 cnt = mt76_rr(dev, MT_ETBF_PAR_RPT0(band));
1824 mib->tx_bf_rx_fb_bw = FIELD_GET(MT_ETBF_PAR_RPT0_FB_BW, cnt);
1825 mib->tx_bf_rx_fb_nc_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NC, cnt);
1826 mib->tx_bf_rx_fb_nr_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NR, cnt);
1827
1828 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) {
1829 cnt = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
1830 mib->tx_amsdu[i] += cnt;
1831 mib->tx_amsdu_cnt += cnt;
1832 }
1833
1834 if (is_mt7915(&dev->mt76)) {
1835 for (i = 0, aggr1 = aggr0 + 8; i < 4; i++) {
1836 val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 4)));
1837 mib->ba_miss_cnt +=
1838 FIELD_GET(MT_MIB_BA_MISS_COUNT_MASK, val);
1839 mib->ack_fail_cnt +=
1840 FIELD_GET(MT_MIB_ACK_FAIL_COUNT_MASK, val);
1841
1842 val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 4)));
1843 mib->rts_cnt += FIELD_GET(MT_MIB_RTS_COUNT_MASK, val);
1844 mib->rts_retries_cnt +=
1845 FIELD_GET(MT_MIB_RTS_RETRIES_COUNT_MASK, val);
1846
1847 val = mt76_rr(dev, MT_TX_AGG_CNT(band, i));
1848 phy->mt76->aggr_stats[aggr0++] += val & 0xffff;
1849 phy->mt76->aggr_stats[aggr0++] += val >> 16;
1850
1851 val = mt76_rr(dev, MT_TX_AGG_CNT2(band, i));
1852 phy->mt76->aggr_stats[aggr1++] += val & 0xffff;
1853 phy->mt76->aggr_stats[aggr1++] += val >> 16;
1854 }
1855
1856 cnt = mt76_rr(dev, MT_MIB_SDR32(band));
1857 mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt);
1858
1859 cnt = mt76_rr(dev, MT_MIB_SDR33(band));
1860 mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR33_TX_PKT_IBF_CNT, cnt);
1861
1862 cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(band));
1863 mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt);
1864 mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt);
1865
1866 cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(band));
1867 mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_ETBF_TX_FB_CPL, cnt);
1868 mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_ETBF_TX_FB_TRI, cnt);
1869
1870 cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(band));
1871 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, cnt);
1872 mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, cnt);
1873 mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, cnt);
1874 mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, cnt);
1875 } else {
1876 for (i = 0; i < 2; i++) {
1877 /* rts count */
1878 val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 2)));
1879 mib->rts_cnt += FIELD_GET(GENMASK(15, 0), val);
1880 mib->rts_cnt += FIELD_GET(GENMASK(31, 16), val);
1881
1882 /* rts retry count */
1883 val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 2)));
1884 mib->rts_retries_cnt += FIELD_GET(GENMASK(15, 0), val);
1885 mib->rts_retries_cnt += FIELD_GET(GENMASK(31, 16), val);
1886
1887 /* ba miss count */
1888 val = mt76_rr(dev, MT_MIB_MB_SDR2(band, (i << 2)));
1889 mib->ba_miss_cnt += FIELD_GET(GENMASK(15, 0), val);
1890 mib->ba_miss_cnt += FIELD_GET(GENMASK(31, 16), val);
1891
1892 /* ack fail count */
1893 val = mt76_rr(dev, MT_MIB_MB_BFTF(band, (i << 2)));
1894 mib->ack_fail_cnt += FIELD_GET(GENMASK(15, 0), val);
1895 mib->ack_fail_cnt += FIELD_GET(GENMASK(31, 16), val);
1896 }
1897
1898 for (i = 0; i < 8; i++) {
1899 val = mt76_rr(dev, MT_TX_AGG_CNT(band, i));
1900 phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(15, 0), val);
1901 phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(31, 16), val);
1902 }
1903
1904 cnt = mt76_rr(dev, MT_MIB_SDR32(band));
1905 mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt);
1906 mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt);
1907 mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt);
1908 mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt);
1909
1910 cnt = mt76_rr(dev, MT_MIB_BFCR7(band));
1911 mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_MIB_BFCR7_BFEE_TX_FB_CPL, cnt);
1912
1913 cnt = mt76_rr(dev, MT_MIB_BFCR2(band));
1914 mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_MIB_BFCR2_BFEE_TX_FB_TRIG, cnt);
1915
1916 cnt = mt76_rr(dev, MT_MIB_BFCR0(band));
1917 mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt);
1918 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt);
1919 mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt);
1920 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt);
1921
1922 cnt = mt76_rr(dev, MT_MIB_BFCR1(band));
1923 mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt);
1924 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt);
1925 }
1926 }
1927
mt7915_mac_severe_check(struct mt7915_phy * phy)1928 static void mt7915_mac_severe_check(struct mt7915_phy *phy)
1929 {
1930 struct mt7915_dev *dev = phy->dev;
1931 u32 trb;
1932
1933 if (!phy->omac_mask)
1934 return;
1935
1936 /* In rare cases, TRB pointers might be out of sync leads to RMAC
1937 * stopping Rx, so check status periodically to see if TRB hardware
1938 * requires minimal recovery.
1939 */
1940 trb = mt76_rr(dev, MT_TRB_RXPSR0(phy->mt76->band_idx));
1941
1942 if ((FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, trb) !=
1943 FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, trb)) &&
1944 (FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, phy->trb_ts) !=
1945 FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, phy->trb_ts)) &&
1946 trb == phy->trb_ts)
1947 mt7915_mcu_set_ser(dev, SER_RECOVER, SER_SET_RECOVER_L3_RX_ABORT,
1948 phy->mt76->band_idx);
1949
1950 phy->trb_ts = trb;
1951 }
1952
mt7915_mac_sta_rc_work(struct work_struct * work)1953 void mt7915_mac_sta_rc_work(struct work_struct *work)
1954 {
1955 struct mt7915_dev *dev = container_of(work, struct mt7915_dev, rc_work);
1956 struct ieee80211_sta *sta;
1957 struct ieee80211_vif *vif;
1958 struct mt7915_sta *msta;
1959 u32 changed;
1960 LIST_HEAD(list);
1961
1962 spin_lock_bh(&dev->mt76.sta_poll_lock);
1963 list_splice_init(&dev->sta_rc_list, &list);
1964
1965 while (!list_empty(&list)) {
1966 msta = list_first_entry(&list, struct mt7915_sta, rc_list);
1967 list_del_init(&msta->rc_list);
1968 changed = msta->changed;
1969 msta->changed = 0;
1970 spin_unlock_bh(&dev->mt76.sta_poll_lock);
1971
1972 sta = container_of((void *)msta, struct ieee80211_sta, drv_priv);
1973 vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv);
1974
1975 if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED |
1976 IEEE80211_RC_NSS_CHANGED |
1977 IEEE80211_RC_BW_CHANGED))
1978 mt7915_mcu_add_rate_ctrl(dev, vif, sta, true);
1979
1980 if (changed & IEEE80211_RC_SMPS_CHANGED)
1981 mt7915_mcu_add_smps(dev, vif, sta);
1982
1983 spin_lock_bh(&dev->mt76.sta_poll_lock);
1984 }
1985
1986 spin_unlock_bh(&dev->mt76.sta_poll_lock);
1987 }
1988
mt7915_mac_work(struct work_struct * work)1989 void mt7915_mac_work(struct work_struct *work)
1990 {
1991 struct mt7915_phy *phy;
1992 struct mt76_phy *mphy;
1993
1994 mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
1995 mac_work.work);
1996 phy = mphy->priv;
1997
1998 mutex_lock(&mphy->dev->mutex);
1999
2000 mt76_update_survey(mphy);
2001 if (++mphy->mac_work_count == 5) {
2002 mphy->mac_work_count = 0;
2003
2004 mt7915_mac_update_stats(phy);
2005 mt7915_mac_severe_check(phy);
2006
2007 if (phy->dev->muru_debug)
2008 mt7915_mcu_muru_debug_get(phy);
2009 }
2010
2011 mutex_unlock(&mphy->dev->mutex);
2012
2013 mt76_tx_status_check(mphy->dev, false);
2014
2015 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
2016 MT7915_WATCHDOG_TIME);
2017 }
2018
mt7915_dfs_stop_radar_detector(struct mt7915_phy * phy)2019 static void mt7915_dfs_stop_radar_detector(struct mt7915_phy *phy)
2020 {
2021 struct mt7915_dev *dev = phy->dev;
2022
2023 if (phy->rdd_state & BIT(0))
2024 mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 0,
2025 MT_RX_SEL0, 0);
2026 if (phy->rdd_state & BIT(1))
2027 mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 1,
2028 MT_RX_SEL0, 0);
2029 }
2030
mt7915_dfs_start_rdd(struct mt7915_dev * dev,int chain)2031 static int mt7915_dfs_start_rdd(struct mt7915_dev *dev, int chain)
2032 {
2033 int err, region;
2034
2035 switch (dev->mt76.region) {
2036 case NL80211_DFS_ETSI:
2037 region = 0;
2038 break;
2039 case NL80211_DFS_JP:
2040 region = 2;
2041 break;
2042 case NL80211_DFS_FCC:
2043 default:
2044 region = 1;
2045 break;
2046 }
2047
2048 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_START, chain,
2049 MT_RX_SEL0, region);
2050 if (err < 0)
2051 return err;
2052
2053 if (is_mt7915(&dev->mt76)) {
2054 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, chain,
2055 0, dev->dbdc_support ? 2 : 0);
2056 if (err < 0)
2057 return err;
2058 }
2059
2060 return mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_DET_MODE, chain,
2061 MT_RX_SEL0, 1);
2062 }
2063
mt7915_dfs_start_radar_detector(struct mt7915_phy * phy)2064 static int mt7915_dfs_start_radar_detector(struct mt7915_phy *phy)
2065 {
2066 struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
2067 struct mt7915_dev *dev = phy->dev;
2068 int err;
2069
2070 /* start CAC */
2071 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_START,
2072 phy->mt76->band_idx, MT_RX_SEL0, 0);
2073 if (err < 0)
2074 return err;
2075
2076 err = mt7915_dfs_start_rdd(dev, phy->mt76->band_idx);
2077 if (err < 0)
2078 return err;
2079
2080 phy->rdd_state |= BIT(phy->mt76->band_idx);
2081
2082 if (!is_mt7915(&dev->mt76))
2083 return 0;
2084
2085 if (chandef->width == NL80211_CHAN_WIDTH_160 ||
2086 chandef->width == NL80211_CHAN_WIDTH_80P80) {
2087 err = mt7915_dfs_start_rdd(dev, 1);
2088 if (err < 0)
2089 return err;
2090
2091 phy->rdd_state |= BIT(1);
2092 }
2093
2094 return 0;
2095 }
2096
2097 static int
mt7915_dfs_init_radar_specs(struct mt7915_phy * phy)2098 mt7915_dfs_init_radar_specs(struct mt7915_phy *phy)
2099 {
2100 const struct mt7915_dfs_radar_spec *radar_specs;
2101 struct mt7915_dev *dev = phy->dev;
2102 int err, i;
2103
2104 switch (dev->mt76.region) {
2105 case NL80211_DFS_FCC:
2106 radar_specs = &fcc_radar_specs;
2107 err = mt7915_mcu_set_fcc5_lpn(dev, 8);
2108 if (err < 0)
2109 return err;
2110 break;
2111 case NL80211_DFS_ETSI:
2112 radar_specs = &etsi_radar_specs;
2113 break;
2114 case NL80211_DFS_JP:
2115 radar_specs = &jp_radar_specs;
2116 break;
2117 default:
2118 return -EINVAL;
2119 }
2120
2121 for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) {
2122 err = mt7915_mcu_set_radar_th(dev, i,
2123 &radar_specs->radar_pattern[i]);
2124 if (err < 0)
2125 return err;
2126 }
2127
2128 return mt7915_mcu_set_pulse_th(dev, &radar_specs->pulse_th);
2129 }
2130
mt7915_dfs_init_radar_detector(struct mt7915_phy * phy)2131 int mt7915_dfs_init_radar_detector(struct mt7915_phy *phy)
2132 {
2133 struct mt7915_dev *dev = phy->dev;
2134 enum mt76_dfs_state dfs_state, prev_state;
2135 int err;
2136
2137 prev_state = phy->mt76->dfs_state;
2138 dfs_state = mt76_phy_dfs_state(phy->mt76);
2139
2140 if (prev_state == dfs_state)
2141 return 0;
2142
2143 if (prev_state == MT_DFS_STATE_UNKNOWN)
2144 mt7915_dfs_stop_radar_detector(phy);
2145
2146 if (dfs_state == MT_DFS_STATE_DISABLED)
2147 goto stop;
2148
2149 if (prev_state <= MT_DFS_STATE_DISABLED) {
2150 err = mt7915_dfs_init_radar_specs(phy);
2151 if (err < 0)
2152 return err;
2153
2154 err = mt7915_dfs_start_radar_detector(phy);
2155 if (err < 0)
2156 return err;
2157
2158 phy->mt76->dfs_state = MT_DFS_STATE_CAC;
2159 }
2160
2161 if (dfs_state == MT_DFS_STATE_CAC)
2162 return 0;
2163
2164 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_END,
2165 phy->mt76->band_idx, MT_RX_SEL0, 0);
2166 if (err < 0) {
2167 phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN;
2168 return err;
2169 }
2170
2171 phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE;
2172 return 0;
2173
2174 stop:
2175 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_NORMAL_START,
2176 phy->mt76->band_idx, MT_RX_SEL0, 0);
2177 if (err < 0)
2178 return err;
2179
2180 if (is_mt7915(&dev->mt76)) {
2181 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT,
2182 phy->mt76->band_idx, 0,
2183 dev->dbdc_support ? 2 : 0);
2184 if (err < 0)
2185 return err;
2186 }
2187
2188 mt7915_dfs_stop_radar_detector(phy);
2189 phy->mt76->dfs_state = MT_DFS_STATE_DISABLED;
2190
2191 return 0;
2192 }
2193
2194 static int
mt7915_mac_twt_duration_align(int duration)2195 mt7915_mac_twt_duration_align(int duration)
2196 {
2197 return duration << 8;
2198 }
2199
2200 static u64
mt7915_mac_twt_sched_list_add(struct mt7915_dev * dev,struct mt7915_twt_flow * flow)2201 mt7915_mac_twt_sched_list_add(struct mt7915_dev *dev,
2202 struct mt7915_twt_flow *flow)
2203 {
2204 struct mt7915_twt_flow *iter, *iter_next;
2205 u32 duration = flow->duration << 8;
2206 u64 start_tsf;
2207
2208 iter = list_first_entry_or_null(&dev->twt_list,
2209 struct mt7915_twt_flow, list);
2210 if (!iter || !iter->sched || iter->start_tsf > duration) {
2211 /* add flow as first entry in the list */
2212 list_add(&flow->list, &dev->twt_list);
2213 return 0;
2214 }
2215
2216 list_for_each_entry_safe(iter, iter_next, &dev->twt_list, list) {
2217 start_tsf = iter->start_tsf +
2218 mt7915_mac_twt_duration_align(iter->duration);
2219 if (list_is_last(&iter->list, &dev->twt_list))
2220 break;
2221
2222 if (!iter_next->sched ||
2223 iter_next->start_tsf > start_tsf + duration) {
2224 list_add(&flow->list, &iter->list);
2225 goto out;
2226 }
2227 }
2228
2229 /* add flow as last entry in the list */
2230 list_add_tail(&flow->list, &dev->twt_list);
2231 out:
2232 return start_tsf;
2233 }
2234
mt7915_mac_check_twt_req(struct ieee80211_twt_setup * twt)2235 static int mt7915_mac_check_twt_req(struct ieee80211_twt_setup *twt)
2236 {
2237 struct ieee80211_twt_params *twt_agrt;
2238 u64 interval, duration;
2239 u16 mantissa;
2240 u8 exp;
2241
2242 /* only individual agreement supported */
2243 if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST)
2244 return -EOPNOTSUPP;
2245
2246 /* only 256us unit supported */
2247 if (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT)
2248 return -EOPNOTSUPP;
2249
2250 twt_agrt = (struct ieee80211_twt_params *)twt->params;
2251
2252 /* explicit agreement not supported */
2253 if (!(twt_agrt->req_type & cpu_to_le16(IEEE80211_TWT_REQTYPE_IMPLICIT)))
2254 return -EOPNOTSUPP;
2255
2256 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP,
2257 le16_to_cpu(twt_agrt->req_type));
2258 mantissa = le16_to_cpu(twt_agrt->mantissa);
2259 duration = twt_agrt->min_twt_dur << 8;
2260
2261 interval = (u64)mantissa << exp;
2262 if (interval < duration)
2263 return -EOPNOTSUPP;
2264
2265 return 0;
2266 }
2267
2268 static bool
mt7915_mac_twt_param_equal(struct mt7915_sta * msta,struct ieee80211_twt_params * twt_agrt)2269 mt7915_mac_twt_param_equal(struct mt7915_sta *msta,
2270 struct ieee80211_twt_params *twt_agrt)
2271 {
2272 u16 type = le16_to_cpu(twt_agrt->req_type);
2273 u8 exp;
2274 int i;
2275
2276 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, type);
2277 for (i = 0; i < MT7915_MAX_STA_TWT_AGRT; i++) {
2278 struct mt7915_twt_flow *f;
2279
2280 if (!(msta->twt.flowid_mask & BIT(i)))
2281 continue;
2282
2283 f = &msta->twt.flow[i];
2284 if (f->duration == twt_agrt->min_twt_dur &&
2285 f->mantissa == twt_agrt->mantissa &&
2286 f->exp == exp &&
2287 f->protection == !!(type & IEEE80211_TWT_REQTYPE_PROTECTION) &&
2288 f->flowtype == !!(type & IEEE80211_TWT_REQTYPE_FLOWTYPE) &&
2289 f->trigger == !!(type & IEEE80211_TWT_REQTYPE_TRIGGER))
2290 return true;
2291 }
2292
2293 return false;
2294 }
2295
mt7915_mac_add_twt_setup(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct ieee80211_twt_setup * twt)2296 void mt7915_mac_add_twt_setup(struct ieee80211_hw *hw,
2297 struct ieee80211_sta *sta,
2298 struct ieee80211_twt_setup *twt)
2299 {
2300 enum ieee80211_twt_setup_cmd setup_cmd = TWT_SETUP_CMD_REJECT;
2301 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
2302 struct ieee80211_twt_params *twt_agrt = (void *)twt->params;
2303 u16 req_type = le16_to_cpu(twt_agrt->req_type);
2304 enum ieee80211_twt_setup_cmd sta_setup_cmd;
2305 struct mt7915_dev *dev = mt7915_hw_dev(hw);
2306 struct mt7915_twt_flow *flow;
2307 int flowid, table_id;
2308 u8 exp;
2309
2310 if (mt7915_mac_check_twt_req(twt))
2311 goto out;
2312
2313 mutex_lock(&dev->mt76.mutex);
2314
2315 if (dev->twt.n_agrt == MT7915_MAX_TWT_AGRT)
2316 goto unlock;
2317
2318 if (hweight8(msta->twt.flowid_mask) == ARRAY_SIZE(msta->twt.flow))
2319 goto unlock;
2320
2321 if (twt_agrt->min_twt_dur < MT7915_MIN_TWT_DUR) {
2322 setup_cmd = TWT_SETUP_CMD_DICTATE;
2323 twt_agrt->min_twt_dur = MT7915_MIN_TWT_DUR;
2324 goto unlock;
2325 }
2326
2327 flowid = ffs(~msta->twt.flowid_mask) - 1;
2328 twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_FLOWID);
2329 twt_agrt->req_type |= le16_encode_bits(flowid,
2330 IEEE80211_TWT_REQTYPE_FLOWID);
2331
2332 table_id = ffs(~dev->twt.table_mask) - 1;
2333 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type);
2334 sta_setup_cmd = FIELD_GET(IEEE80211_TWT_REQTYPE_SETUP_CMD, req_type);
2335
2336 if (mt7915_mac_twt_param_equal(msta, twt_agrt))
2337 goto unlock;
2338
2339 flow = &msta->twt.flow[flowid];
2340 memset(flow, 0, sizeof(*flow));
2341 INIT_LIST_HEAD(&flow->list);
2342 flow->wcid = msta->wcid.idx;
2343 flow->table_id = table_id;
2344 flow->id = flowid;
2345 flow->duration = twt_agrt->min_twt_dur;
2346 flow->mantissa = twt_agrt->mantissa;
2347 flow->exp = exp;
2348 flow->protection = !!(req_type & IEEE80211_TWT_REQTYPE_PROTECTION);
2349 flow->flowtype = !!(req_type & IEEE80211_TWT_REQTYPE_FLOWTYPE);
2350 flow->trigger = !!(req_type & IEEE80211_TWT_REQTYPE_TRIGGER);
2351
2352 if (sta_setup_cmd == TWT_SETUP_CMD_REQUEST ||
2353 sta_setup_cmd == TWT_SETUP_CMD_SUGGEST) {
2354 u64 interval = (u64)le16_to_cpu(twt_agrt->mantissa) << exp;
2355 u64 flow_tsf, curr_tsf;
2356 u32 rem;
2357
2358 flow->sched = true;
2359 flow->start_tsf = mt7915_mac_twt_sched_list_add(dev, flow);
2360 curr_tsf = __mt7915_get_tsf(hw, msta->vif);
2361 div_u64_rem(curr_tsf - flow->start_tsf, interval, &rem);
2362 flow_tsf = curr_tsf + interval - rem;
2363 twt_agrt->twt = cpu_to_le64(flow_tsf);
2364 } else {
2365 list_add_tail(&flow->list, &dev->twt_list);
2366 }
2367 flow->tsf = le64_to_cpu(twt_agrt->twt);
2368
2369 if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow, MCU_TWT_AGRT_ADD))
2370 goto unlock;
2371
2372 setup_cmd = TWT_SETUP_CMD_ACCEPT;
2373 dev->twt.table_mask |= BIT(table_id);
2374 msta->twt.flowid_mask |= BIT(flowid);
2375 dev->twt.n_agrt++;
2376
2377 unlock:
2378 mutex_unlock(&dev->mt76.mutex);
2379 out:
2380 twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_SETUP_CMD);
2381 twt_agrt->req_type |=
2382 le16_encode_bits(setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD);
2383 twt->control = (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) |
2384 (twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED);
2385 }
2386
mt7915_mac_twt_teardown_flow(struct mt7915_dev * dev,struct mt7915_sta * msta,u8 flowid)2387 void mt7915_mac_twt_teardown_flow(struct mt7915_dev *dev,
2388 struct mt7915_sta *msta,
2389 u8 flowid)
2390 {
2391 struct mt7915_twt_flow *flow;
2392
2393 lockdep_assert_held(&dev->mt76.mutex);
2394
2395 if (flowid >= ARRAY_SIZE(msta->twt.flow))
2396 return;
2397
2398 if (!(msta->twt.flowid_mask & BIT(flowid)))
2399 return;
2400
2401 flow = &msta->twt.flow[flowid];
2402 if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow,
2403 MCU_TWT_AGRT_DELETE))
2404 return;
2405
2406 list_del_init(&flow->list);
2407 msta->twt.flowid_mask &= ~BIT(flowid);
2408 dev->twt.table_mask &= ~BIT(flow->table_id);
2409 dev->twt.n_agrt--;
2410 }
2411