linux/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
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   1// SPDX-License-Identifier: ISC
   2/* Copyright (C) 2020 MediaTek Inc. */
   3
   4#include "mt7915.h"
   5#include "eeprom.h"
   6
   7/** global debugfs **/
   8
   9/* test knob of system layer 1/2 error recovery */
  10static int mt7915_ser_trigger_set(void *data, u64 val)
  11{
  12        enum {
  13                SER_SET_RECOVER_L1 = 1,
  14                SER_SET_RECOVER_L2,
  15                SER_ENABLE = 2,
  16                SER_RECOVER
  17        };
  18        struct mt7915_dev *dev = data;
  19        int ret = 0;
  20
  21        switch (val) {
  22        case SER_SET_RECOVER_L1:
  23        case SER_SET_RECOVER_L2:
  24                /* fall through */
  25                ret = mt7915_mcu_set_ser(dev, SER_ENABLE, BIT(val), 0);
  26                if (ret)
  27                        return ret;
  28
  29                return mt7915_mcu_set_ser(dev, SER_RECOVER, val, 0);
  30        default:
  31                break;
  32        }
  33
  34        return ret;
  35}
  36
  37DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
  38                         mt7915_ser_trigger_set, "%lld\n");
  39
  40static int
  41mt7915_radar_trigger(void *data, u64 val)
  42{
  43        struct mt7915_dev *dev = data;
  44
  45        return mt7915_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, 1, 0, 0);
  46}
  47
  48DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
  49                         mt7915_radar_trigger, "%lld\n");
  50
  51static int
  52mt7915_dbdc_set(void *data, u64 val)
  53{
  54        struct mt7915_dev *dev = data;
  55
  56        if (val)
  57                mt7915_register_ext_phy(dev);
  58        else
  59                mt7915_unregister_ext_phy(dev);
  60
  61        return 0;
  62}
  63
  64static int
  65mt7915_dbdc_get(void *data, u64 *val)
  66{
  67        struct mt7915_dev *dev = data;
  68
  69        *val = !!mt7915_ext_phy(dev);
  70
  71        return 0;
  72}
  73
  74DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7915_dbdc_get,
  75                         mt7915_dbdc_set, "%lld\n");
  76
  77static int
  78mt7915_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
  99static int
 100mt7915_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
 109DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
 110                         mt7915_fw_debug_set, "%lld\n");
 111
 112static void
 113mt7915_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) + 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
 146static void
 147mt7915_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        int cnt;
 152
 153        if (!phy)
 154                return;
 155
 156        /* Tx Beamformer monitor */
 157        seq_puts(s, "\nTx Beamformer applied PPDU counts: ");
 158
 159        cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));
 160        seq_printf(s, "iBF: %ld, eBF: %ld\n",
 161                   FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt),
 162                   FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt));
 163
 164        /* Tx Beamformer Rx feedback monitor */
 165        seq_puts(s, "Tx Beamformer Rx feedback statistics: ");
 166
 167        cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));
 168        seq_printf(s, "All: %ld, HE: %ld, VHT: %ld, HT: %ld\n",
 169                   FIELD_GET(MT_ETBF_RX_FB_ALL, cnt),
 170                   FIELD_GET(MT_ETBF_RX_FB_HE, cnt),
 171                   FIELD_GET(MT_ETBF_RX_FB_VHT, cnt),
 172                   FIELD_GET(MT_ETBF_RX_FB_HT, cnt));
 173
 174        /* Tx Beamformee Rx NDPA & Tx feedback report */
 175        cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
 176        seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
 177                   FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
 178        seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
 179                   FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));
 180
 181        /* Tx SU & MU counters */
 182        cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));
 183        seq_printf(s, "Tx multi-user Beamforming counts: %ld\n",
 184                   FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt));
 185        cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));
 186        seq_printf(s, "Tx multi-user MPDU counts: %d\n", cnt);
 187        cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));
 188        seq_printf(s, "Tx multi-user successful MPDU counts: %d\n", cnt);
 189        cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
 190        seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);
 191
 192        seq_puts(s, "\n");
 193}
 194
 195static int
 196mt7915_tx_stats_read(struct seq_file *file, void *data)
 197{
 198        struct mt7915_dev *dev = file->private;
 199        int stat[8], i, n;
 200
 201        mt7915_ampdu_stat_read_phy(&dev->phy, file);
 202        mt7915_txbf_stat_read_phy(&dev->phy, file);
 203
 204        mt7915_ampdu_stat_read_phy(mt7915_ext_phy(dev), file);
 205        mt7915_txbf_stat_read_phy(mt7915_ext_phy(dev), file);
 206
 207        /* Tx amsdu info */
 208        seq_puts(file, "Tx MSDU stat:\n");
 209        for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
 210                stat[i] = mt76_rr(dev,  MT_PLE_AMSDU_PACK_MSDU_CNT(i));
 211                n += stat[i];
 212        }
 213
 214        for (i = 0; i < ARRAY_SIZE(stat); i++) {
 215                seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
 216                           i + 1, stat[i]);
 217                if (n != 0)
 218                        seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
 219                else
 220                        seq_puts(file, "\n");
 221        }
 222
 223        return 0;
 224}
 225
 226static int
 227mt7915_tx_stats_open(struct inode *inode, struct file *f)
 228{
 229        return single_open(f, mt7915_tx_stats_read, inode->i_private);
 230}
 231
 232static const struct file_operations fops_tx_stats = {
 233        .open = mt7915_tx_stats_open,
 234        .read = seq_read,
 235        .llseek = seq_lseek,
 236        .release = single_release,
 237};
 238
 239static int mt7915_read_temperature(struct seq_file *s, void *data)
 240{
 241        struct mt7915_dev *dev = dev_get_drvdata(s->private);
 242        int temp;
 243
 244        /* cpu */
 245        temp = mt7915_mcu_get_temperature(dev, 0);
 246        seq_printf(s, "Temperature: %d\n", temp);
 247
 248        return 0;
 249}
 250
 251static int
 252mt7915_queues_acq(struct seq_file *s, void *data)
 253{
 254        struct mt7915_dev *dev = dev_get_drvdata(s->private);
 255        int i;
 256
 257        for (i = 0; i < 16; i++) {
 258                int j, acs = i / 4, index = i % 4;
 259                u32 ctrl, val, qlen = 0;
 260
 261                val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
 262                ctrl = BIT(31) | BIT(15) | (acs << 8);
 263
 264                for (j = 0; j < 32; j++) {
 265                        if (val & BIT(j))
 266                                continue;
 267
 268                        mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
 269                                ctrl | (j + (index << 5)));
 270                        qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
 271                                               GENMASK(11, 0));
 272                }
 273                seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
 274        }
 275
 276        return 0;
 277}
 278
 279static int
 280mt7915_queues_read(struct seq_file *s, void *data)
 281{
 282        struct mt7915_dev *dev = dev_get_drvdata(s->private);
 283        static const struct {
 284                char *queue;
 285                int id;
 286        } queue_map[] = {
 287                { "WFDMA0", MT_TXQ_BE },
 288                { "MCUWM", MT_TXQ_MCU },
 289                { "MCUWA", MT_TXQ_MCU_WA },
 290                { "MCUFWQ", MT_TXQ_FWDL },
 291        };
 292        int i;
 293
 294        for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
 295                struct mt76_sw_queue *q = &dev->mt76.q_tx[queue_map[i].id];
 296
 297                if (!q->q)
 298                        continue;
 299
 300                seq_printf(s,
 301                           "%s: queued=%d head=%d tail=%d\n",
 302                           queue_map[i].queue, q->q->queued, q->q->head,
 303                           q->q->tail);
 304        }
 305
 306        return 0;
 307}
 308
 309static void
 310mt7915_puts_rate_txpower(struct seq_file *s, s8 *delta,
 311                         s8 txpower_cur, int band)
 312{
 313        static const char * const sku_group_name[] = {
 314                "CCK", "OFDM", "HT20", "HT40",
 315                "VHT20", "VHT40", "VHT80", "VHT160",
 316                "RU26", "RU52", "RU106", "RU242/SU20",
 317                "RU484/SU40", "RU996/SU80", "RU2x996/SU160"
 318        };
 319        s8 txpower[MT7915_SKU_RATE_NUM];
 320        int i, idx = 0;
 321
 322        for (i = 0; i < MT7915_SKU_RATE_NUM; i++)
 323                txpower[i] = DIV_ROUND_UP(txpower_cur + delta[i], 2);
 324
 325        for (i = 0; i < MAX_SKU_RATE_GROUP_NUM; i++) {
 326                const struct sku_group *sku = &mt7915_sku_groups[i];
 327                u32 offset = sku->offset[band];
 328
 329                if (!offset) {
 330                        idx += sku->len;
 331                        continue;
 332                }
 333
 334                mt76_seq_puts_array(s, sku_group_name[i],
 335                                    txpower + idx, sku->len);
 336                idx += sku->len;
 337        }
 338}
 339
 340static int
 341mt7915_read_rate_txpower(struct seq_file *s, void *data)
 342{
 343        struct mt7915_dev *dev = dev_get_drvdata(s->private);
 344        struct mt76_phy *mphy = &dev->mphy;
 345        enum nl80211_band band = mphy->chandef.chan->band;
 346        s8 *delta = dev->rate_power[band];
 347        s8 txpower_base = mphy->txpower_cur - delta[MT7915_SKU_MAX_DELTA_IDX];
 348
 349        seq_puts(s, "Band 0:\n");
 350        mt7915_puts_rate_txpower(s, delta, txpower_base, band);
 351
 352        if (dev->mt76.phy2) {
 353                mphy = dev->mt76.phy2;
 354                band = mphy->chandef.chan->band;
 355                delta = dev->rate_power[band];
 356                txpower_base = mphy->txpower_cur -
 357                               delta[MT7915_SKU_MAX_DELTA_IDX];
 358
 359                seq_puts(s, "Band 1:\n");
 360                mt7915_puts_rate_txpower(s, delta, txpower_base, band);
 361        }
 362
 363        return 0;
 364}
 365
 366int mt7915_init_debugfs(struct mt7915_dev *dev)
 367{
 368        struct dentry *dir;
 369
 370        dir = mt76_register_debugfs(&dev->mt76);
 371        if (!dir)
 372                return -ENOMEM;
 373
 374        debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
 375                                    mt7915_queues_read);
 376        debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
 377                                    mt7915_queues_acq);
 378        debugfs_create_file("tx_stats", 0400, dir, dev, &fops_tx_stats);
 379        debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
 380        debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
 381        debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
 382        /* test knobs */
 383        debugfs_create_file("radar_trigger", 0200, dir, dev,
 384                            &fops_radar_trigger);
 385        debugfs_create_file("ser_trigger", 0200, dir, dev, &fops_ser_trigger);
 386        debugfs_create_devm_seqfile(dev->mt76.dev, "temperature", dir,
 387                                    mt7915_read_temperature);
 388        debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
 389                                    mt7915_read_rate_txpower);
 390
 391        return 0;
 392}
 393
 394#ifdef CONFIG_MAC80211_DEBUGFS
 395/** per-station debugfs **/
 396
 397/* usage: <tx mode> <ldpc> <stbc> <bw> <gi> <nss> <mcs> */
 398static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
 399{
 400        struct ieee80211_sta *sta = data;
 401        struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
 402
 403        return mt7915_mcu_set_fixed_rate(msta->vif->dev, sta, rate);
 404}
 405
 406DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
 407                         mt7915_sta_fixed_rate_set, "%llx\n");
 408
 409static int
 410mt7915_sta_stats_read(struct seq_file *s, void *data)
 411{
 412        struct ieee80211_sta *sta = s->private;
 413        struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
 414        struct mt7915_sta_stats *stats = &msta->stats;
 415        struct rate_info *rate = &stats->prob_rate;
 416        static const char * const bw[] = {
 417                "BW20", "BW5", "BW10", "BW40",
 418                "BW80", "BW160", "BW_HE_RU"
 419        };
 420
 421        if (!rate->legacy && !rate->flags)
 422                return 0;
 423
 424        seq_puts(s, "Probing rate - ");
 425        if (rate->flags & RATE_INFO_FLAGS_MCS)
 426                seq_puts(s, "HT ");
 427        else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
 428                seq_puts(s, "VHT ");
 429        else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
 430                seq_puts(s, "HE ");
 431        else
 432                seq_printf(s, "Bitrate %d\n", rate->legacy);
 433
 434        if (rate->flags) {
 435                seq_printf(s, "%s NSS%d MCS%d ",
 436                           bw[rate->bw], rate->nss, rate->mcs);
 437
 438                if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
 439                        seq_puts(s, "SGI ");
 440                else if (rate->he_gi)
 441                        seq_puts(s, "HE GI ");
 442
 443                if (rate->he_dcm)
 444                        seq_puts(s, "DCM ");
 445        }
 446
 447        seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
 448                   stats->per / 10, stats->per % 10);
 449
 450        return 0;
 451}
 452
 453static int
 454mt7915_sta_stats_open(struct inode *inode, struct file *f)
 455{
 456        return single_open(f, mt7915_sta_stats_read, inode->i_private);
 457}
 458
 459static const struct file_operations fops_sta_stats = {
 460        .open = mt7915_sta_stats_open,
 461        .read = seq_read,
 462        .llseek = seq_lseek,
 463        .release = single_release,
 464};
 465
 466void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 467                            struct ieee80211_sta *sta, struct dentry *dir)
 468{
 469        debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
 470        debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats);
 471}
 472#endif
 473