1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (C) 2022 MediaTek Inc.
4 */
5
6 #include <linux/relay.h>
7 #include "mt7996.h"
8 #include "eeprom.h"
9 #include "mcu.h"
10 #include "mac.h"
11
12 #define FW_BIN_LOG_MAGIC 0x44d9c99a
13
14 /** global debugfs **/
15
16 struct hw_queue_map {
17 const char *name;
18 u8 index;
19 u8 pid;
20 u8 qid;
21 };
22
23 static int
mt7996_implicit_txbf_set(void * data,u64 val)24 mt7996_implicit_txbf_set(void *data, u64 val)
25 {
26 struct mt7996_dev *dev = data;
27
28 /* The existing connected stations shall reconnect to apply
29 * new implicit txbf configuration.
30 */
31 dev->ibf = !!val;
32
33 return mt7996_mcu_set_txbf(dev, BF_HW_EN_UPDATE);
34 }
35
36 static int
mt7996_implicit_txbf_get(void * data,u64 * val)37 mt7996_implicit_txbf_get(void *data, u64 *val)
38 {
39 struct mt7996_dev *dev = data;
40
41 *val = dev->ibf;
42
43 return 0;
44 }
45
46 DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7996_implicit_txbf_get,
47 mt7996_implicit_txbf_set, "%lld\n");
48
49 /* test knob of system error recovery */
50 static ssize_t
mt7996_sys_recovery_set(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)51 mt7996_sys_recovery_set(struct file *file, const char __user *user_buf,
52 size_t count, loff_t *ppos)
53 {
54 struct mt7996_phy *phy = file->private_data;
55 struct mt7996_dev *dev = phy->dev;
56 bool band = phy->mt76->band_idx;
57 char buf[16];
58 int ret = 0;
59 u16 val;
60
61 if (count >= sizeof(buf))
62 return -EINVAL;
63
64 if (copy_from_user(buf, user_buf, count))
65 return -EFAULT;
66
67 if (count && buf[count - 1] == '\n')
68 buf[count - 1] = '\0';
69 else
70 buf[count] = '\0';
71
72 if (kstrtou16(buf, 0, &val))
73 return -EINVAL;
74
75 switch (val) {
76 /*
77 * 0: grab firmware current SER state.
78 * 1: trigger & enable system error L1 recovery.
79 * 2: trigger & enable system error L2 recovery.
80 * 3: trigger & enable system error L3 rx abort.
81 * 4: trigger & enable system error L3 tx abort
82 * 5: trigger & enable system error L3 tx disable.
83 * 6: trigger & enable system error L3 bf recovery.
84 * 7: trigger & enable system error L4 mdp recovery.
85 * 8: trigger & enable system error full recovery.
86 * 9: trigger firmware crash.
87 */
88 case UNI_CMD_SER_QUERY:
89 ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_QUERY, 0, band);
90 break;
91 case UNI_CMD_SER_SET_RECOVER_L1:
92 case UNI_CMD_SER_SET_RECOVER_L2:
93 case UNI_CMD_SER_SET_RECOVER_L3_RX_ABORT:
94 case UNI_CMD_SER_SET_RECOVER_L3_TX_ABORT:
95 case UNI_CMD_SER_SET_RECOVER_L3_TX_DISABLE:
96 case UNI_CMD_SER_SET_RECOVER_L3_BF:
97 case UNI_CMD_SER_SET_RECOVER_L4_MDP:
98 ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_SET, BIT(val), band);
99 if (ret)
100 return ret;
101
102 ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, val, band);
103 break;
104
105 /* enable full chip reset */
106 case UNI_CMD_SER_SET_RECOVER_FULL:
107 mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
108 dev->recovery.state |= MT_MCU_CMD_WDT_MASK;
109 mt7996_reset(dev);
110 break;
111
112 /* WARNING: trigger firmware crash */
113 case UNI_CMD_SER_SET_SYSTEM_ASSERT:
114 ret = mt7996_mcu_trigger_assert(dev);
115 if (ret)
116 return ret;
117 break;
118 default:
119 break;
120 }
121
122 return ret ? ret : count;
123 }
124
125 static ssize_t
mt7996_sys_recovery_get(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)126 mt7996_sys_recovery_get(struct file *file, char __user *user_buf,
127 size_t count, loff_t *ppos)
128 {
129 struct mt7996_phy *phy = file->private_data;
130 struct mt7996_dev *dev = phy->dev;
131 char *buff;
132 int desc = 0;
133 ssize_t ret;
134 static const size_t bufsz = 1024;
135
136 buff = kmalloc(bufsz, GFP_KERNEL);
137 if (!buff)
138 return -ENOMEM;
139
140 /* HELP */
141 desc += scnprintf(buff + desc, bufsz - desc,
142 "Please echo the correct value ...\n");
143 desc += scnprintf(buff + desc, bufsz - desc,
144 "0: grab firmware transient SER state\n");
145 desc += scnprintf(buff + desc, bufsz - desc,
146 "1: trigger system error L1 recovery\n");
147 desc += scnprintf(buff + desc, bufsz - desc,
148 "2: trigger system error L2 recovery\n");
149 desc += scnprintf(buff + desc, bufsz - desc,
150 "3: trigger system error L3 rx abort\n");
151 desc += scnprintf(buff + desc, bufsz - desc,
152 "4: trigger system error L3 tx abort\n");
153 desc += scnprintf(buff + desc, bufsz - desc,
154 "5: trigger system error L3 tx disable\n");
155 desc += scnprintf(buff + desc, bufsz - desc,
156 "6: trigger system error L3 bf recovery\n");
157 desc += scnprintf(buff + desc, bufsz - desc,
158 "7: trigger system error L4 mdp recovery\n");
159 desc += scnprintf(buff + desc, bufsz - desc,
160 "8: trigger system error full recovery\n");
161 desc += scnprintf(buff + desc, bufsz - desc,
162 "9: trigger firmware crash\n");
163
164 /* SER statistics */
165 desc += scnprintf(buff + desc, bufsz - desc,
166 "\nlet's dump firmware SER statistics...\n");
167 desc += scnprintf(buff + desc, bufsz - desc,
168 "::E R , SER_STATUS = 0x%08x\n",
169 mt76_rr(dev, MT_SWDEF_SER_STATS));
170 desc += scnprintf(buff + desc, bufsz - desc,
171 "::E R , SER_PLE_ERR = 0x%08x\n",
172 mt76_rr(dev, MT_SWDEF_PLE_STATS));
173 desc += scnprintf(buff + desc, bufsz - desc,
174 "::E R , SER_PLE_ERR_1 = 0x%08x\n",
175 mt76_rr(dev, MT_SWDEF_PLE1_STATS));
176 desc += scnprintf(buff + desc, bufsz - desc,
177 "::E R , SER_PLE_ERR_AMSDU = 0x%08x\n",
178 mt76_rr(dev, MT_SWDEF_PLE_AMSDU_STATS));
179 desc += scnprintf(buff + desc, bufsz - desc,
180 "::E R , SER_PSE_ERR = 0x%08x\n",
181 mt76_rr(dev, MT_SWDEF_PSE_STATS));
182 desc += scnprintf(buff + desc, bufsz - desc,
183 "::E R , SER_PSE_ERR_1 = 0x%08x\n",
184 mt76_rr(dev, MT_SWDEF_PSE1_STATS));
185 desc += scnprintf(buff + desc, bufsz - desc,
186 "::E R , SER_LMAC_WISR6_B0 = 0x%08x\n",
187 mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN0_STATS));
188 desc += scnprintf(buff + desc, bufsz - desc,
189 "::E R , SER_LMAC_WISR6_B1 = 0x%08x\n",
190 mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN1_STATS));
191 desc += scnprintf(buff + desc, bufsz - desc,
192 "::E R , SER_LMAC_WISR6_B2 = 0x%08x\n",
193 mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN2_STATS));
194 desc += scnprintf(buff + desc, bufsz - desc,
195 "::E R , SER_LMAC_WISR7_B0 = 0x%08x\n",
196 mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN0_STATS));
197 desc += scnprintf(buff + desc, bufsz - desc,
198 "::E R , SER_LMAC_WISR7_B1 = 0x%08x\n",
199 mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN1_STATS));
200 desc += scnprintf(buff + desc, bufsz - desc,
201 "::E R , SER_LMAC_WISR7_B2 = 0x%08x\n",
202 mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN2_STATS));
203 desc += scnprintf(buff + desc, bufsz - desc,
204 "\nSYS_RESET_COUNT: WM %d, WA %d\n",
205 dev->recovery.wm_reset_count,
206 dev->recovery.wa_reset_count);
207
208 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
209 kfree(buff);
210 return ret;
211 }
212
213 static const struct file_operations mt7996_sys_recovery_ops = {
214 .write = mt7996_sys_recovery_set,
215 .read = mt7996_sys_recovery_get,
216 .open = simple_open,
217 .llseek = default_llseek,
218 };
219
220 static int
mt7996_radar_trigger(void * data,u64 val)221 mt7996_radar_trigger(void *data, u64 val)
222 {
223 struct mt7996_dev *dev = data;
224
225 if (val > MT_RX_SEL2)
226 return -EINVAL;
227
228 return mt7996_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE,
229 val, 0, 0);
230 }
231
232 DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
233 mt7996_radar_trigger, "%lld\n");
234
235 static int
mt7996_rdd_monitor(struct seq_file * s,void * data)236 mt7996_rdd_monitor(struct seq_file *s, void *data)
237 {
238 struct mt7996_dev *dev = dev_get_drvdata(s->private);
239 struct cfg80211_chan_def *chandef = &dev->rdd2_chandef;
240 const char *bw;
241 int ret = 0;
242
243 mutex_lock(&dev->mt76.mutex);
244
245 if (!cfg80211_chandef_valid(chandef)) {
246 ret = -EINVAL;
247 goto out;
248 }
249
250 if (!dev->rdd2_phy) {
251 seq_puts(s, "not running\n");
252 goto out;
253 }
254
255 switch (chandef->width) {
256 case NL80211_CHAN_WIDTH_40:
257 bw = "40";
258 break;
259 case NL80211_CHAN_WIDTH_80:
260 bw = "80";
261 break;
262 case NL80211_CHAN_WIDTH_160:
263 bw = "160";
264 break;
265 case NL80211_CHAN_WIDTH_80P80:
266 bw = "80P80";
267 break;
268 default:
269 bw = "20";
270 break;
271 }
272
273 seq_printf(s, "channel %d (%d MHz) width %s MHz center1: %d MHz\n",
274 chandef->chan->hw_value, chandef->chan->center_freq,
275 bw, chandef->center_freq1);
276 out:
277 mutex_unlock(&dev->mt76.mutex);
278
279 return ret;
280 }
281
282 static int
mt7996_fw_debug_wm_set(void * data,u64 val)283 mt7996_fw_debug_wm_set(void *data, u64 val)
284 {
285 struct mt7996_dev *dev = data;
286 enum {
287 DEBUG_TXCMD = 62,
288 DEBUG_CMD_RPT_TX,
289 DEBUG_CMD_RPT_TRIG,
290 DEBUG_SPL,
291 DEBUG_RPT_RX,
292 DEBUG_RPT_RA = 68,
293 } debug;
294 bool tx, rx, en;
295 int ret;
296
297 dev->fw_debug_wm = val ? MCU_FW_LOG_TO_HOST : 0;
298
299 if (dev->fw_debug_bin)
300 val = MCU_FW_LOG_RELAY;
301 else
302 val = dev->fw_debug_wm;
303
304 tx = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(1));
305 rx = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(2));
306 en = dev->fw_debug_wm || (dev->fw_debug_bin & BIT(0));
307
308 ret = mt7996_mcu_fw_log_2_host(dev, MCU_FW_LOG_WM, val);
309 if (ret)
310 return ret;
311
312 for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RA; debug++) {
313 if (debug == 67)
314 continue;
315
316 if (debug == DEBUG_RPT_RX)
317 val = en && rx;
318 else
319 val = en && tx;
320
321 ret = mt7996_mcu_fw_dbg_ctrl(dev, debug, val);
322 if (ret)
323 return ret;
324 }
325
326 return 0;
327 }
328
329 static int
mt7996_fw_debug_wm_get(void * data,u64 * val)330 mt7996_fw_debug_wm_get(void *data, u64 *val)
331 {
332 struct mt7996_dev *dev = data;
333
334 *val = dev->fw_debug_wm;
335
336 return 0;
337 }
338
339 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wm, mt7996_fw_debug_wm_get,
340 mt7996_fw_debug_wm_set, "%lld\n");
341
342 static int
mt7996_fw_debug_wa_set(void * data,u64 val)343 mt7996_fw_debug_wa_set(void *data, u64 val)
344 {
345 struct mt7996_dev *dev = data;
346 int ret;
347
348 dev->fw_debug_wa = val ? MCU_FW_LOG_TO_HOST : 0;
349
350 ret = mt7996_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, dev->fw_debug_wa);
351 if (ret)
352 return ret;
353
354 return mt7996_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET), MCU_WA_PARAM_PDMA_RX,
355 !!dev->fw_debug_wa, 0);
356 }
357
358 static int
mt7996_fw_debug_wa_get(void * data,u64 * val)359 mt7996_fw_debug_wa_get(void *data, u64 *val)
360 {
361 struct mt7996_dev *dev = data;
362
363 *val = dev->fw_debug_wa;
364
365 return 0;
366 }
367
368 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wa, mt7996_fw_debug_wa_get,
369 mt7996_fw_debug_wa_set, "%lld\n");
370
371 static struct dentry *
create_buf_file_cb(const char * filename,struct dentry * parent,umode_t mode,struct rchan_buf * buf,int * is_global)372 create_buf_file_cb(const char *filename, struct dentry *parent, umode_t mode,
373 struct rchan_buf *buf, int *is_global)
374 {
375 struct dentry *f;
376
377 f = debugfs_create_file("fwlog_data", mode, parent, buf,
378 &relay_file_operations);
379 if (IS_ERR(f))
380 return NULL;
381
382 *is_global = 1;
383
384 return f;
385 }
386
387 static int
remove_buf_file_cb(struct dentry * f)388 remove_buf_file_cb(struct dentry *f)
389 {
390 debugfs_remove(f);
391
392 return 0;
393 }
394
395 static int
mt7996_fw_debug_bin_set(void * data,u64 val)396 mt7996_fw_debug_bin_set(void *data, u64 val)
397 {
398 static struct rchan_callbacks relay_cb = {
399 .create_buf_file = create_buf_file_cb,
400 .remove_buf_file = remove_buf_file_cb,
401 };
402 struct mt7996_dev *dev = data;
403
404 if (!dev->relay_fwlog)
405 dev->relay_fwlog = relay_open("fwlog_data", dev->debugfs_dir,
406 1500, 512, &relay_cb, NULL);
407 if (!dev->relay_fwlog)
408 return -ENOMEM;
409
410 dev->fw_debug_bin = val;
411
412 relay_reset(dev->relay_fwlog);
413
414 return mt7996_fw_debug_wm_set(dev, dev->fw_debug_wm);
415 }
416
417 static int
mt7996_fw_debug_bin_get(void * data,u64 * val)418 mt7996_fw_debug_bin_get(void *data, u64 *val)
419 {
420 struct mt7996_dev *dev = data;
421
422 *val = dev->fw_debug_bin;
423
424 return 0;
425 }
426
427 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_bin, mt7996_fw_debug_bin_get,
428 mt7996_fw_debug_bin_set, "%lld\n");
429
430 static int
mt7996_fw_util_wa_show(struct seq_file * file,void * data)431 mt7996_fw_util_wa_show(struct seq_file *file, void *data)
432 {
433 struct mt7996_dev *dev = file->private;
434
435 if (dev->fw_debug_wa)
436 return mt7996_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(QUERY),
437 MCU_WA_PARAM_CPU_UTIL, 0, 0);
438
439 return 0;
440 }
441
442 DEFINE_SHOW_ATTRIBUTE(mt7996_fw_util_wa);
443
444 static void
mt7996_ampdu_stat_read_phy(struct mt7996_phy * phy,struct seq_file * file)445 mt7996_ampdu_stat_read_phy(struct mt7996_phy *phy, struct seq_file *file)
446 {
447 struct mt7996_dev *dev = phy->dev;
448 int bound[15], range[8], i;
449 u8 band_idx = phy->mt76->band_idx;
450
451 /* Tx ampdu stat */
452 for (i = 0; i < ARRAY_SIZE(range); i++)
453 range[i] = mt76_rr(dev, MT_MIB_ARNG(band_idx, i));
454
455 for (i = 0; i < ARRAY_SIZE(bound); i++)
456 bound[i] = MT_MIB_ARNCR_RANGE(range[i / 2], i % 2) + 1;
457
458 seq_printf(file, "\nPhy %s, Phy band %d\n",
459 wiphy_name(phy->mt76->hw->wiphy), band_idx);
460
461 seq_printf(file, "Length: %8d | ", bound[0]);
462 for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
463 seq_printf(file, "%3d -%3d | ",
464 bound[i] + 1, bound[i + 1]);
465
466 seq_puts(file, "\nCount: ");
467 for (i = 0; i < ARRAY_SIZE(bound); i++)
468 seq_printf(file, "%8d | ", phy->mt76->aggr_stats[i]);
469 seq_puts(file, "\n");
470
471 seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
472 }
473
474 static void
mt7996_txbf_stat_read_phy(struct mt7996_phy * phy,struct seq_file * s)475 mt7996_txbf_stat_read_phy(struct mt7996_phy *phy, struct seq_file *s)
476 {
477 struct mt76_mib_stats *mib = &phy->mib;
478 static const char * const bw[] = {
479 "BW20", "BW40", "BW80", "BW160"
480 };
481
482 /* Tx Beamformer monitor */
483 seq_puts(s, "\nTx Beamformer applied PPDU counts: ");
484
485 seq_printf(s, "iBF: %d, eBF: %d\n",
486 mib->tx_bf_ibf_ppdu_cnt,
487 mib->tx_bf_ebf_ppdu_cnt);
488
489 /* Tx Beamformer Rx feedback monitor */
490 seq_puts(s, "Tx Beamformer Rx feedback statistics: ");
491
492 seq_printf(s, "All: %d, HE: %d, VHT: %d, HT: %d, ",
493 mib->tx_bf_rx_fb_all_cnt,
494 mib->tx_bf_rx_fb_he_cnt,
495 mib->tx_bf_rx_fb_vht_cnt,
496 mib->tx_bf_rx_fb_ht_cnt);
497
498 seq_printf(s, "%s, NC: %d, NR: %d\n",
499 bw[mib->tx_bf_rx_fb_bw],
500 mib->tx_bf_rx_fb_nc_cnt,
501 mib->tx_bf_rx_fb_nr_cnt);
502
503 /* Tx Beamformee Rx NDPA & Tx feedback report */
504 seq_printf(s, "Tx Beamformee successful feedback frames: %d\n",
505 mib->tx_bf_fb_cpl_cnt);
506 seq_printf(s, "Tx Beamformee feedback triggered counts: %d\n",
507 mib->tx_bf_fb_trig_cnt);
508
509 /* Tx SU & MU counters */
510 seq_printf(s, "Tx multi-user Beamforming counts: %d\n",
511 mib->tx_mu_bf_cnt);
512 seq_printf(s, "Tx multi-user MPDU counts: %d\n", mib->tx_mu_mpdu_cnt);
513 seq_printf(s, "Tx multi-user successful MPDU counts: %d\n",
514 mib->tx_mu_acked_mpdu_cnt);
515 seq_printf(s, "Tx single-user successful MPDU counts: %d\n",
516 mib->tx_su_acked_mpdu_cnt);
517
518 seq_puts(s, "\n");
519 }
520
521 static int
mt7996_tx_stats_show(struct seq_file * file,void * data)522 mt7996_tx_stats_show(struct seq_file *file, void *data)
523 {
524 struct mt7996_phy *phy = file->private;
525 struct mt7996_dev *dev = phy->dev;
526 struct mt76_mib_stats *mib = &phy->mib;
527 int i;
528 u32 attempts, success, per;
529
530 mutex_lock(&dev->mt76.mutex);
531
532 mt7996_mac_update_stats(phy);
533 mt7996_ampdu_stat_read_phy(phy, file);
534
535 attempts = mib->tx_mpdu_attempts_cnt;
536 success = mib->tx_mpdu_success_cnt;
537 per = attempts ? 100 - success * 100 / attempts : 100;
538 seq_printf(file, "Tx attempts: %8u (MPDUs)\n", attempts);
539 seq_printf(file, "Tx success: %8u (MPDUs)\n", success);
540 seq_printf(file, "Tx PER: %u%%\n", per);
541
542 mt7996_txbf_stat_read_phy(phy, file);
543
544 /* Tx amsdu info */
545 seq_puts(file, "Tx MSDU statistics:\n");
546 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) {
547 seq_printf(file, "AMSDU pack count of %d MSDU in TXD: %8d ",
548 i + 1, mib->tx_amsdu[i]);
549 if (mib->tx_amsdu_cnt)
550 seq_printf(file, "(%3d%%)\n",
551 mib->tx_amsdu[i] * 100 / mib->tx_amsdu_cnt);
552 else
553 seq_puts(file, "\n");
554 }
555
556 mutex_unlock(&dev->mt76.mutex);
557
558 return 0;
559 }
560
561 DEFINE_SHOW_ATTRIBUTE(mt7996_tx_stats);
562
563 static void
mt7996_hw_queue_read(struct seq_file * s,u32 size,const struct hw_queue_map * map)564 mt7996_hw_queue_read(struct seq_file *s, u32 size,
565 const struct hw_queue_map *map)
566 {
567 struct mt7996_phy *phy = s->private;
568 struct mt7996_dev *dev = phy->dev;
569 u32 i, val;
570
571 val = mt76_rr(dev, MT_FL_Q_EMPTY);
572 for (i = 0; i < size; i++) {
573 u32 ctrl, head, tail, queued;
574
575 if (val & BIT(map[i].index))
576 continue;
577
578 ctrl = BIT(31) | (map[i].pid << 10) | ((u32)map[i].qid << 24);
579 mt76_wr(dev, MT_FL_Q0_CTRL, ctrl);
580
581 head = mt76_get_field(dev, MT_FL_Q2_CTRL,
582 GENMASK(11, 0));
583 tail = mt76_get_field(dev, MT_FL_Q2_CTRL,
584 GENMASK(27, 16));
585 queued = mt76_get_field(dev, MT_FL_Q3_CTRL,
586 GENMASK(11, 0));
587
588 seq_printf(s, "\t%s: ", map[i].name);
589 seq_printf(s, "queued:0x%03x head:0x%03x tail:0x%03x\n",
590 queued, head, tail);
591 }
592 }
593
594 static void
mt7996_sta_hw_queue_read(void * data,struct ieee80211_sta * sta)595 mt7996_sta_hw_queue_read(void *data, struct ieee80211_sta *sta)
596 {
597 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
598 struct mt7996_dev *dev = msta->vif->phy->dev;
599 struct seq_file *s = data;
600 u8 ac;
601
602 for (ac = 0; ac < 4; ac++) {
603 u32 qlen, ctrl, val;
604 u32 idx = msta->wcid.idx >> 5;
605 u8 offs = msta->wcid.idx & GENMASK(4, 0);
606
607 ctrl = BIT(31) | BIT(11) | (ac << 24);
608 val = mt76_rr(dev, MT_PLE_AC_QEMPTY(ac, idx));
609
610 if (val & BIT(offs))
611 continue;
612
613 mt76_wr(dev, MT_FL_Q0_CTRL, ctrl | msta->wcid.idx);
614 qlen = mt76_get_field(dev, MT_FL_Q3_CTRL,
615 GENMASK(11, 0));
616 seq_printf(s, "\tSTA %pM wcid %d: AC%d%d queued:%d\n",
617 sta->addr, msta->wcid.idx,
618 msta->vif->mt76.wmm_idx, ac, qlen);
619 }
620 }
621
622 static int
mt7996_hw_queues_show(struct seq_file * file,void * data)623 mt7996_hw_queues_show(struct seq_file *file, void *data)
624 {
625 struct mt7996_phy *phy = file->private;
626 struct mt7996_dev *dev = phy->dev;
627 static const struct hw_queue_map ple_queue_map[] = {
628 { "CPU_Q0", 0, 1, MT_CTX0 },
629 { "CPU_Q1", 1, 1, MT_CTX0 + 1 },
630 { "CPU_Q2", 2, 1, MT_CTX0 + 2 },
631 { "CPU_Q3", 3, 1, MT_CTX0 + 3 },
632 { "ALTX_Q0", 8, 2, MT_LMAC_ALTX0 },
633 { "BMC_Q0", 9, 2, MT_LMAC_BMC0 },
634 { "BCN_Q0", 10, 2, MT_LMAC_BCN0 },
635 { "PSMP_Q0", 11, 2, MT_LMAC_PSMP0 },
636 { "ALTX_Q1", 12, 2, MT_LMAC_ALTX0 + 4 },
637 { "BMC_Q1", 13, 2, MT_LMAC_BMC0 + 4 },
638 { "BCN_Q1", 14, 2, MT_LMAC_BCN0 + 4 },
639 { "PSMP_Q1", 15, 2, MT_LMAC_PSMP0 + 4 },
640 };
641 static const struct hw_queue_map pse_queue_map[] = {
642 { "CPU Q0", 0, 1, MT_CTX0 },
643 { "CPU Q1", 1, 1, MT_CTX0 + 1 },
644 { "CPU Q2", 2, 1, MT_CTX0 + 2 },
645 { "CPU Q3", 3, 1, MT_CTX0 + 3 },
646 { "HIF_Q0", 8, 0, MT_HIF0 },
647 { "HIF_Q1", 9, 0, MT_HIF0 + 1 },
648 { "HIF_Q2", 10, 0, MT_HIF0 + 2 },
649 { "HIF_Q3", 11, 0, MT_HIF0 + 3 },
650 { "HIF_Q4", 12, 0, MT_HIF0 + 4 },
651 { "HIF_Q5", 13, 0, MT_HIF0 + 5 },
652 { "LMAC_Q", 16, 2, 0 },
653 { "MDP_TXQ", 17, 2, 1 },
654 { "MDP_RXQ", 18, 2, 2 },
655 { "SEC_TXQ", 19, 2, 3 },
656 { "SEC_RXQ", 20, 2, 4 },
657 };
658 u32 val, head, tail;
659
660 /* ple queue */
661 val = mt76_rr(dev, MT_PLE_FREEPG_CNT);
662 head = mt76_get_field(dev, MT_PLE_FREEPG_HEAD_TAIL, GENMASK(11, 0));
663 tail = mt76_get_field(dev, MT_PLE_FREEPG_HEAD_TAIL, GENMASK(27, 16));
664 seq_puts(file, "PLE page info:\n");
665 seq_printf(file,
666 "\tTotal free page: 0x%08x head: 0x%03x tail: 0x%03x\n",
667 val, head, tail);
668
669 val = mt76_rr(dev, MT_PLE_PG_HIF_GROUP);
670 head = mt76_get_field(dev, MT_PLE_HIF_PG_INFO, GENMASK(11, 0));
671 tail = mt76_get_field(dev, MT_PLE_HIF_PG_INFO, GENMASK(27, 16));
672 seq_printf(file, "\tHIF free page: 0x%03x res: 0x%03x used: 0x%03x\n",
673 val, head, tail);
674
675 seq_puts(file, "PLE non-empty queue info:\n");
676 mt7996_hw_queue_read(file, ARRAY_SIZE(ple_queue_map),
677 &ple_queue_map[0]);
678
679 /* iterate per-sta ple queue */
680 ieee80211_iterate_stations_atomic(phy->mt76->hw,
681 mt7996_sta_hw_queue_read, file);
682 /* pse queue */
683 seq_puts(file, "PSE non-empty queue info:\n");
684 mt7996_hw_queue_read(file, ARRAY_SIZE(pse_queue_map),
685 &pse_queue_map[0]);
686
687 return 0;
688 }
689
690 DEFINE_SHOW_ATTRIBUTE(mt7996_hw_queues);
691
692 static int
mt7996_xmit_queues_show(struct seq_file * file,void * data)693 mt7996_xmit_queues_show(struct seq_file *file, void *data)
694 {
695 struct mt7996_phy *phy = file->private;
696 struct mt7996_dev *dev = phy->dev;
697 struct {
698 struct mt76_queue *q;
699 char *queue;
700 } queue_map[] = {
701 { phy->mt76->q_tx[MT_TXQ_BE], " MAIN" },
702 { dev->mt76.q_mcu[MT_MCUQ_WM], " MCUWM" },
703 { dev->mt76.q_mcu[MT_MCUQ_WA], " MCUWA" },
704 { dev->mt76.q_mcu[MT_MCUQ_FWDL], "MCUFWDL" },
705 };
706 int i;
707
708 seq_puts(file, " queue | hw-queued | head | tail |\n");
709 for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
710 struct mt76_queue *q = queue_map[i].q;
711
712 if (!q)
713 continue;
714
715 seq_printf(file, " %s | %9d | %9d | %9d |\n",
716 queue_map[i].queue, q->queued, q->head,
717 q->tail);
718 }
719
720 return 0;
721 }
722
723 DEFINE_SHOW_ATTRIBUTE(mt7996_xmit_queues);
724
725 static int
mt7996_twt_stats(struct seq_file * s,void * data)726 mt7996_twt_stats(struct seq_file *s, void *data)
727 {
728 struct mt7996_dev *dev = dev_get_drvdata(s->private);
729 struct mt7996_twt_flow *iter;
730
731 rcu_read_lock();
732
733 seq_puts(s, " wcid | id | flags | exp | mantissa");
734 seq_puts(s, " | duration | tsf |\n");
735 list_for_each_entry_rcu(iter, &dev->twt_list, list)
736 seq_printf(s,
737 "%9d | %8d | %5c%c%c%c | %8d | %8d | %8d | %14lld |\n",
738 iter->wcid, iter->id,
739 iter->sched ? 's' : 'u',
740 iter->protection ? 'p' : '-',
741 iter->trigger ? 't' : '-',
742 iter->flowtype ? '-' : 'a',
743 iter->exp, iter->mantissa,
744 iter->duration, iter->tsf);
745
746 rcu_read_unlock();
747
748 return 0;
749 }
750
751 /* The index of RF registers use the generic regidx, combined with two parts:
752 * WF selection [31:24] and offset [23:0].
753 */
754 static int
mt7996_rf_regval_get(void * data,u64 * val)755 mt7996_rf_regval_get(void *data, u64 *val)
756 {
757 struct mt7996_dev *dev = data;
758 u32 regval;
759 int ret;
760
761 ret = mt7996_mcu_rf_regval(dev, dev->mt76.debugfs_reg, ®val, false);
762 if (ret)
763 return ret;
764
765 *val = regval;
766
767 return 0;
768 }
769
770 static int
mt7996_rf_regval_set(void * data,u64 val)771 mt7996_rf_regval_set(void *data, u64 val)
772 {
773 struct mt7996_dev *dev = data;
774 u32 val32 = val;
775
776 return mt7996_mcu_rf_regval(dev, dev->mt76.debugfs_reg, &val32, true);
777 }
778
779 DEFINE_DEBUGFS_ATTRIBUTE(fops_rf_regval, mt7996_rf_regval_get,
780 mt7996_rf_regval_set, "0x%08llx\n");
781
mt7996_init_debugfs(struct mt7996_phy * phy)782 int mt7996_init_debugfs(struct mt7996_phy *phy)
783 {
784 struct mt7996_dev *dev = phy->dev;
785 struct dentry *dir;
786
787 dir = mt76_register_debugfs_fops(phy->mt76, NULL);
788 if (!dir)
789 return -ENOMEM;
790 debugfs_create_file("hw-queues", 0400, dir, phy,
791 &mt7996_hw_queues_fops);
792 debugfs_create_file("xmit-queues", 0400, dir, phy,
793 &mt7996_xmit_queues_fops);
794 debugfs_create_file("tx_stats", 0400, dir, phy, &mt7996_tx_stats_fops);
795 debugfs_create_file("sys_recovery", 0600, dir, phy,
796 &mt7996_sys_recovery_ops);
797 debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm);
798 debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa);
799 debugfs_create_file("fw_debug_bin", 0600, dir, dev, &fops_fw_debug_bin);
800 /* TODO: wm fw cpu utilization */
801 debugfs_create_file("fw_util_wa", 0400, dir, dev,
802 &mt7996_fw_util_wa_fops);
803 debugfs_create_file("implicit_txbf", 0600, dir, dev,
804 &fops_implicit_txbf);
805 debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
806 mt7996_twt_stats);
807 debugfs_create_file("rf_regval", 0600, dir, dev, &fops_rf_regval);
808
809 if (phy->mt76->cap.has_5ghz) {
810 debugfs_create_u32("dfs_hw_pattern", 0400, dir,
811 &dev->hw_pattern);
812 debugfs_create_file("radar_trigger", 0200, dir, dev,
813 &fops_radar_trigger);
814 debugfs_create_devm_seqfile(dev->mt76.dev, "rdd_monitor", dir,
815 mt7996_rdd_monitor);
816 }
817
818 if (phy == &dev->phy)
819 dev->debugfs_dir = dir;
820
821 return 0;
822 }
823
824 static void
mt7996_debugfs_write_fwlog(struct mt7996_dev * dev,const void * hdr,int hdrlen,const void * data,int len)825 mt7996_debugfs_write_fwlog(struct mt7996_dev *dev, const void *hdr, int hdrlen,
826 const void *data, int len)
827 {
828 static DEFINE_SPINLOCK(lock);
829 unsigned long flags;
830 void *dest;
831
832 spin_lock_irqsave(&lock, flags);
833 dest = relay_reserve(dev->relay_fwlog, hdrlen + len + 4);
834 if (dest) {
835 *(u32 *)dest = hdrlen + len;
836 dest += 4;
837
838 if (hdrlen) {
839 memcpy(dest, hdr, hdrlen);
840 dest += hdrlen;
841 }
842
843 memcpy(dest, data, len);
844 relay_flush(dev->relay_fwlog);
845 }
846 spin_unlock_irqrestore(&lock, flags);
847 }
848
mt7996_debugfs_rx_fw_monitor(struct mt7996_dev * dev,const void * data,int len)849 void mt7996_debugfs_rx_fw_monitor(struct mt7996_dev *dev, const void *data, int len)
850 {
851 struct {
852 __le32 magic;
853 u8 version;
854 u8 _rsv;
855 __le16 serial_id;
856 __le32 timestamp;
857 __le16 msg_type;
858 __le16 len;
859 } hdr = {
860 .version = 0x1,
861 .magic = cpu_to_le32(FW_BIN_LOG_MAGIC),
862 .msg_type = cpu_to_le16(PKT_TYPE_RX_FW_MONITOR),
863 };
864
865 if (!dev->relay_fwlog)
866 return;
867
868 hdr.serial_id = cpu_to_le16(dev->fw_debug_seq++);
869 hdr.timestamp = cpu_to_le32(mt76_rr(dev, MT_LPON_FRCR(0)));
870 hdr.len = *(__le16 *)data;
871 mt7996_debugfs_write_fwlog(dev, &hdr, sizeof(hdr), data, len);
872 }
873
mt7996_debugfs_rx_log(struct mt7996_dev * dev,const void * data,int len)874 bool mt7996_debugfs_rx_log(struct mt7996_dev *dev, const void *data, int len)
875 {
876 if (get_unaligned_le32(data) != FW_BIN_LOG_MAGIC)
877 return false;
878
879 if (dev->relay_fwlog)
880 mt7996_debugfs_write_fwlog(dev, NULL, 0, data, len);
881
882 return true;
883 }
884
885 #ifdef CONFIG_MAC80211_DEBUGFS
886 /** per-station debugfs **/
887
mt7996_sta_fixed_rate_set(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)888 static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
889 const char __user *user_buf,
890 size_t count, loff_t *ppos)
891 {
892 #define SHORT_PREAMBLE 0
893 #define LONG_PREAMBLE 1
894 struct ieee80211_sta *sta = file->private_data;
895 struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
896 struct mt7996_dev *dev = msta->vif->phy->dev;
897 struct ra_rate phy = {};
898 char buf[100];
899 int ret;
900 u16 gi, ltf;
901
902 if (count >= sizeof(buf))
903 return -EINVAL;
904
905 if (copy_from_user(buf, user_buf, count))
906 return -EFAULT;
907
908 if (count && buf[count - 1] == '\n')
909 buf[count - 1] = '\0';
910 else
911 buf[count] = '\0';
912
913 /* mode - cck: 0, ofdm: 1, ht: 2, gf: 3, vht: 4, he_su: 8, he_er: 9 EHT: 15
914 * bw - bw20: 0, bw40: 1, bw80: 2, bw160: 3, BW320: 4
915 * nss - vht: 1~4, he: 1~4, eht: 1~4, others: ignore
916 * mcs - cck: 0~4, ofdm: 0~7, ht: 0~32, vht: 0~9, he_su: 0~11, he_er: 0~2, eht: 0~13
917 * gi - (ht/vht) lgi: 0, sgi: 1; (he) 0.8us: 0, 1.6us: 1, 3.2us: 2
918 * preamble - short: 1, long: 0
919 * ldpc - off: 0, on: 1
920 * stbc - off: 0, on: 1
921 * ltf - 1xltf: 0, 2xltf: 1, 4xltf: 2
922 */
923 if (sscanf(buf, "%hhu %hhu %hhu %hhu %hu %hhu %hhu %hhu %hhu %hu",
924 &phy.mode, &phy.bw, &phy.mcs, &phy.nss, &gi,
925 &phy.preamble, &phy.stbc, &phy.ldpc, &phy.spe, <f) != 10) {
926 dev_warn(dev->mt76.dev,
927 "format: Mode BW MCS NSS GI Preamble STBC LDPC SPE ltf\n");
928 goto out;
929 }
930
931 phy.wlan_idx = cpu_to_le16(msta->wcid.idx);
932 phy.gi = cpu_to_le16(gi);
933 phy.ltf = cpu_to_le16(ltf);
934 phy.ldpc = phy.ldpc ? 7 : 0;
935 phy.preamble = phy.preamble ? SHORT_PREAMBLE : LONG_PREAMBLE;
936
937 ret = mt7996_mcu_set_fixed_rate_ctrl(dev, &phy, 0);
938 if (ret)
939 return -EFAULT;
940
941 out:
942 return count;
943 }
944
945 static const struct file_operations fops_fixed_rate = {
946 .write = mt7996_sta_fixed_rate_set,
947 .open = simple_open,
948 .owner = THIS_MODULE,
949 .llseek = default_llseek,
950 };
951
952 static int
mt7996_queues_show(struct seq_file * s,void * data)953 mt7996_queues_show(struct seq_file *s, void *data)
954 {
955 struct ieee80211_sta *sta = s->private;
956
957 mt7996_sta_hw_queue_read(s, sta);
958
959 return 0;
960 }
961
962 DEFINE_SHOW_ATTRIBUTE(mt7996_queues);
963
mt7996_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct dentry * dir)964 void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
965 struct ieee80211_sta *sta, struct dentry *dir)
966 {
967 debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
968 debugfs_create_file("hw-queues", 0400, dir, sta, &mt7996_queues_fops);
969 }
970
971 #endif
972