1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include "mt7915.h"
5 #include "eeprom.h"
6 #include "mcu.h"
7
8 /** global debugfs **/
9
10 static int
mt7915_implicit_txbf_set(void * data,u64 val)11 mt7915_implicit_txbf_set(void *data, u64 val)
12 {
13 struct mt7915_dev *dev = data;
14
15 /* The existing connected stations shall reconnect to apply
16 * new implicit txbf configuration.
17 */
18 dev->ibf = !!val;
19
20 return mt7915_mcu_set_txbf(dev, MT_BF_TYPE_UPDATE);
21 }
22
23 static int
mt7915_implicit_txbf_get(void * data,u64 * val)24 mt7915_implicit_txbf_get(void *data, u64 *val)
25 {
26 struct mt7915_dev *dev = data;
27
28 *val = dev->ibf;
29
30 return 0;
31 }
32
33 DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7915_implicit_txbf_get,
34 mt7915_implicit_txbf_set, "%lld\n");
35
36 /* test knob of system layer 1/2 error recovery */
mt7915_ser_trigger_set(void * data,u64 val)37 static int mt7915_ser_trigger_set(void *data, u64 val)
38 {
39 enum {
40 SER_SET_RECOVER_L1 = 1,
41 SER_SET_RECOVER_L2,
42 SER_ENABLE = 2,
43 SER_RECOVER
44 };
45 struct mt7915_dev *dev = data;
46 int ret = 0;
47
48 switch (val) {
49 case SER_SET_RECOVER_L1:
50 case SER_SET_RECOVER_L2:
51 ret = mt7915_mcu_set_ser(dev, SER_ENABLE, BIT(val), 0);
52 if (ret)
53 return ret;
54
55 return mt7915_mcu_set_ser(dev, SER_RECOVER, val, 0);
56 default:
57 break;
58 }
59
60 return ret;
61 }
62
63 DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
64 mt7915_ser_trigger_set, "%lld\n");
65
66 static int
mt7915_radar_trigger(void * data,u64 val)67 mt7915_radar_trigger(void *data, u64 val)
68 {
69 struct mt7915_dev *dev = data;
70
71 return mt7915_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, 1, 0, 0);
72 }
73
74 DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
75 mt7915_radar_trigger, "%lld\n");
76
77 static int
mt7915_fw_debug_set(void * data,u64 val)78 mt7915_fw_debug_set(void *data, u64 val)
79 {
80 struct mt7915_dev *dev = data;
81 enum {
82 DEBUG_TXCMD = 62,
83 DEBUG_CMD_RPT_TX,
84 DEBUG_CMD_RPT_TRIG,
85 DEBUG_SPL,
86 DEBUG_RPT_RX,
87 } debug;
88
89 dev->fw_debug = !!val;
90
91 mt7915_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);
92
93 for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++)
94 mt7915_mcu_fw_dbg_ctrl(dev, debug, dev->fw_debug);
95
96 return 0;
97 }
98
99 static int
mt7915_fw_debug_get(void * data,u64 * val)100 mt7915_fw_debug_get(void *data, u64 *val)
101 {
102 struct mt7915_dev *dev = data;
103
104 *val = dev->fw_debug;
105
106 return 0;
107 }
108
109 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
110 mt7915_fw_debug_set, "%lld\n");
111
112 static void
mt7915_ampdu_stat_read_phy(struct mt7915_phy * phy,struct seq_file * file)113 mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy,
114 struct seq_file *file)
115 {
116 struct mt7915_dev *dev = file->private;
117 bool ext_phy = phy != &dev->phy;
118 int bound[15], range[4], i, n;
119
120 if (!phy)
121 return;
122
123 /* Tx ampdu stat */
124 for (i = 0; i < ARRAY_SIZE(range); i++)
125 range[i] = mt76_rr(dev, MT_MIB_ARNG(ext_phy, i));
126
127 for (i = 0; i < ARRAY_SIZE(bound); i++)
128 bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i % 4) + 1;
129
130 seq_printf(file, "\nPhy %d\n", ext_phy);
131
132 seq_printf(file, "Length: %8d | ", bound[0]);
133 for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
134 seq_printf(file, "%3d -%3d | ",
135 bound[i] + 1, bound[i + 1]);
136
137 seq_puts(file, "\nCount: ");
138 n = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;
139 for (i = 0; i < ARRAY_SIZE(bound); i++)
140 seq_printf(file, "%8d | ", dev->mt76.aggr_stats[i + n]);
141 seq_puts(file, "\n");
142
143 seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
144 }
145
146 static void
mt7915_txbf_stat_read_phy(struct mt7915_phy * phy,struct seq_file * s)147 mt7915_txbf_stat_read_phy(struct mt7915_phy *phy, struct seq_file *s)
148 {
149 struct mt7915_dev *dev = s->private;
150 bool ext_phy = phy != &dev->phy;
151 static const char * const bw[] = {
152 "BW20", "BW40", "BW80", "BW160"
153 };
154 int cnt;
155
156 if (!phy)
157 return;
158
159 /* Tx Beamformer monitor */
160 seq_puts(s, "\nTx Beamformer applied PPDU counts: ");
161
162 cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));
163 seq_printf(s, "iBF: %ld, eBF: %ld\n",
164 FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt),
165 FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt));
166
167 /* Tx Beamformer Rx feedback monitor */
168 seq_puts(s, "Tx Beamformer Rx feedback statistics: ");
169
170 cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));
171 seq_printf(s, "All: %ld, HE: %ld, VHT: %ld, HT: %ld, ",
172 FIELD_GET(MT_ETBF_RX_FB_ALL, cnt),
173 FIELD_GET(MT_ETBF_RX_FB_HE, cnt),
174 FIELD_GET(MT_ETBF_RX_FB_VHT, cnt),
175 FIELD_GET(MT_ETBF_RX_FB_HT, cnt));
176 cnt = mt76_rr(dev, MT_ETBF_RX_FB_CONT(ext_phy));
177 seq_printf(s, "%s, NC: %ld, NR: %ld\n",
178 bw[FIELD_GET(MT_ETBF_RX_FB_BW, cnt)],
179 FIELD_GET(MT_ETBF_RX_FB_NC, cnt),
180 FIELD_GET(MT_ETBF_RX_FB_NR, cnt));
181
182 /* Tx Beamformee Rx NDPA & Tx feedback report */
183 cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
184 seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
185 FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
186 seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
187 FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));
188
189 /* Tx SU & MU counters */
190 cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));
191 seq_printf(s, "Tx multi-user Beamforming counts: %ld\n",
192 FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt));
193 cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));
194 seq_printf(s, "Tx multi-user MPDU counts: %d\n", cnt);
195 cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));
196 seq_printf(s, "Tx multi-user successful MPDU counts: %d\n", cnt);
197 cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
198 seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);
199
200 seq_puts(s, "\n");
201 }
202
203 static int
mt7915_tx_stats_show(struct seq_file * file,void * data)204 mt7915_tx_stats_show(struct seq_file *file, void *data)
205 {
206 struct mt7915_dev *dev = file->private;
207 int stat[8], i, n;
208
209 mt7915_ampdu_stat_read_phy(&dev->phy, file);
210 mt7915_txbf_stat_read_phy(&dev->phy, file);
211
212 mt7915_ampdu_stat_read_phy(mt7915_ext_phy(dev), file);
213 mt7915_txbf_stat_read_phy(mt7915_ext_phy(dev), file);
214
215 /* Tx amsdu info */
216 seq_puts(file, "Tx MSDU statistics:\n");
217 for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
218 stat[i] = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
219 n += stat[i];
220 }
221
222 for (i = 0; i < ARRAY_SIZE(stat); i++) {
223 seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
224 i + 1, stat[i]);
225 if (n != 0)
226 seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
227 else
228 seq_puts(file, "\n");
229 }
230
231 return 0;
232 }
233
234 DEFINE_SHOW_ATTRIBUTE(mt7915_tx_stats);
235
236 static int
mt7915_queues_acq(struct seq_file * s,void * data)237 mt7915_queues_acq(struct seq_file *s, void *data)
238 {
239 struct mt7915_dev *dev = dev_get_drvdata(s->private);
240 int i;
241
242 for (i = 0; i < 16; i++) {
243 int j, acs = i / 4, index = i % 4;
244 u32 ctrl, val, qlen = 0;
245
246 val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
247 ctrl = BIT(31) | BIT(15) | (acs << 8);
248
249 for (j = 0; j < 32; j++) {
250 if (val & BIT(j))
251 continue;
252
253 mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
254 ctrl | (j + (index << 5)));
255 qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
256 GENMASK(11, 0));
257 }
258 seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
259 }
260
261 return 0;
262 }
263
264 static int
mt7915_queues_read(struct seq_file * s,void * data)265 mt7915_queues_read(struct seq_file *s, void *data)
266 {
267 struct mt7915_dev *dev = dev_get_drvdata(s->private);
268 struct mt76_phy *mphy_ext = dev->mt76.phy2;
269 struct mt76_queue *ext_q = mphy_ext ? mphy_ext->q_tx[MT_TXQ_BE] : NULL;
270 struct {
271 struct mt76_queue *q;
272 char *queue;
273 } queue_map[] = {
274 { dev->mphy.q_tx[MT_TXQ_BE], "WFDMA0" },
275 { ext_q, "WFDMA1" },
276 { dev->mphy.q_tx[MT_TXQ_BE], "WFDMA0" },
277 { dev->mt76.q_mcu[MT_MCUQ_WM], "MCUWM" },
278 { dev->mt76.q_mcu[MT_MCUQ_WA], "MCUWA" },
279 { dev->mt76.q_mcu[MT_MCUQ_FWDL], "MCUFWQ" },
280 };
281 int i;
282
283 for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
284 struct mt76_queue *q = queue_map[i].q;
285
286 if (!q)
287 continue;
288
289 seq_printf(s,
290 "%s: queued=%d head=%d tail=%d\n",
291 queue_map[i].queue, q->queued, q->head,
292 q->tail);
293 }
294
295 return 0;
296 }
297
298 static void
mt7915_puts_rate_txpower(struct seq_file * s,struct mt7915_phy * phy)299 mt7915_puts_rate_txpower(struct seq_file *s, struct mt7915_phy *phy)
300 {
301 static const char * const sku_group_name[] = {
302 "CCK", "OFDM", "HT20", "HT40",
303 "VHT20", "VHT40", "VHT80", "VHT160",
304 "RU26", "RU52", "RU106", "RU242/SU20",
305 "RU484/SU40", "RU996/SU80", "RU2x996/SU160"
306 };
307 s8 txpower[MT7915_SKU_RATE_NUM], *buf;
308 int i;
309
310 if (!phy)
311 return;
312
313 seq_printf(s, "\nBand %d\n", phy != &phy->dev->phy);
314
315 mt7915_mcu_get_txpower_sku(phy, txpower, sizeof(txpower));
316 for (i = 0, buf = txpower; i < ARRAY_SIZE(mt7915_sku_group_len); i++) {
317 u8 mcs_num = mt7915_sku_group_len[i];
318
319 if (i >= SKU_VHT_BW20 && i <= SKU_VHT_BW160)
320 mcs_num = 10;
321
322 mt76_seq_puts_array(s, sku_group_name[i], buf, mcs_num);
323 buf += mt7915_sku_group_len[i];
324 }
325 }
326
327 static int
mt7915_read_rate_txpower(struct seq_file * s,void * data)328 mt7915_read_rate_txpower(struct seq_file *s, void *data)
329 {
330 struct mt7915_dev *dev = dev_get_drvdata(s->private);
331
332 mt7915_puts_rate_txpower(s, &dev->phy);
333 mt7915_puts_rate_txpower(s, mt7915_ext_phy(dev));
334
335 return 0;
336 }
337
mt7915_init_debugfs(struct mt7915_dev * dev)338 int mt7915_init_debugfs(struct mt7915_dev *dev)
339 {
340 struct dentry *dir;
341
342 dir = mt76_register_debugfs(&dev->mt76);
343 if (!dir)
344 return -ENOMEM;
345
346 debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
347 mt7915_queues_read);
348 debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
349 mt7915_queues_acq);
350 debugfs_create_file("tx_stats", 0400, dir, dev, &mt7915_tx_stats_fops);
351 debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
352 debugfs_create_file("implicit_txbf", 0600, dir, dev,
353 &fops_implicit_txbf);
354 debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
355 /* test knobs */
356 debugfs_create_file("radar_trigger", 0200, dir, dev,
357 &fops_radar_trigger);
358 debugfs_create_file("ser_trigger", 0200, dir, dev, &fops_ser_trigger);
359 debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
360 mt7915_read_rate_txpower);
361
362 return 0;
363 }
364
365 #ifdef CONFIG_MAC80211_DEBUGFS
366 /** per-station debugfs **/
367
368 /* usage: <tx mode> <ldpc> <stbc> <bw> <gi> <nss> <mcs> */
mt7915_sta_fixed_rate_set(void * data,u64 rate)369 static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
370 {
371 struct ieee80211_sta *sta = data;
372 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
373
374 return mt7915_mcu_set_fixed_rate(msta->vif->phy->dev, sta, rate);
375 }
376
377 DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
378 mt7915_sta_fixed_rate_set, "%llx\n");
379
380 static int
mt7915_sta_stats_show(struct seq_file * s,void * data)381 mt7915_sta_stats_show(struct seq_file *s, void *data)
382 {
383 struct ieee80211_sta *sta = s->private;
384 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
385 struct mt7915_sta_stats *stats = &msta->stats;
386 struct rate_info *rate = &stats->prob_rate;
387 static const char * const bw[] = {
388 "BW20", "BW5", "BW10", "BW40",
389 "BW80", "BW160", "BW_HE_RU"
390 };
391
392 if (!rate->legacy && !rate->flags)
393 return 0;
394
395 seq_puts(s, "Probing rate - ");
396 if (rate->flags & RATE_INFO_FLAGS_MCS)
397 seq_puts(s, "HT ");
398 else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
399 seq_puts(s, "VHT ");
400 else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
401 seq_puts(s, "HE ");
402 else
403 seq_printf(s, "Bitrate %d\n", rate->legacy);
404
405 if (rate->flags) {
406 seq_printf(s, "%s NSS%d MCS%d ",
407 bw[rate->bw], rate->nss, rate->mcs);
408
409 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
410 seq_puts(s, "SGI ");
411 else if (rate->he_gi)
412 seq_puts(s, "HE GI ");
413
414 if (rate->he_dcm)
415 seq_puts(s, "DCM ");
416 }
417
418 seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
419 stats->per / 10, stats->per % 10);
420
421 return 0;
422 }
423
424 DEFINE_SHOW_ATTRIBUTE(mt7915_sta_stats);
425
mt7915_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct dentry * dir)426 void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
427 struct ieee80211_sta *sta, struct dentry *dir)
428 {
429 debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
430 debugfs_create_file("stats", 0400, dir, sta, &mt7915_sta_stats_fops);
431 }
432 #endif
433