net/mac80211/debugfs_sta.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright 2003-2005  Devicescape Software, Inc.
   4  * Copyright (c) 2006   Jiri Benc <[email protected]>
   5  * Copyright 2007       Johannes Berg <[email protected]>
   6  * Copyright 2013-2014  Intel Mobile Communications GmbH
   7  * Copyright(c) 2016 Intel Deutschland GmbH
   8  * Copyright (C) 2018 - 2023 Intel Corporation
   9  */
  10
  11 #include <linux/debugfs.h>
  12 #include <linux/ieee80211.h>
  13 #include "ieee80211_i.h"
  14 #include "debugfs.h"
  15 #include "debugfs_sta.h"
  16 #include "sta_info.h"
  17 #include "driver-ops.h"
  18
  19 /* sta attributes */
  20
  21 #define STA_READ(name, field, format_string)                            \
  22 static ssize_t sta_ ##name## _read(struct file *file,                   \
  23                                    char __user *userbuf,                \
  24                                    size_t count, loff_t *ppos)          \
  25 {                                                                       \
  26         struct sta_info *sta = file->private_data;                      \
  27         return mac80211_format_buffer(userbuf, count, ppos,             \
  28                                       format_string, sta->field);       \
  29 }
  30 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
  31
  32 #define STA_OPS(name)                                                   \
  33 static const struct debugfs_short_fops sta_ ##name## _ops = {           \
  34         .read = sta_##name##_read,                                      \
  35         .llseek = generic_file_llseek,                                  \
  36 }
  37
  38 #define STA_OPS_RW(name)                                                \
  39 static const struct debugfs_short_fops sta_ ##name## _ops = {           \
  40         .read = sta_##name##_read,                                      \
  41         .write = sta_##name##_write,                                    \
  42         .llseek = generic_file_llseek,                                  \
  43 }
  44
  45 #define STA_FILE(name, field, format)                                   \
  46                 STA_READ_##format(name, field)                          \
  47                 STA_OPS(name)
  48
  49 STA_FILE(aid, sta.aid, D);
  50
  51 static const char * const sta_flag_names[] = {
  52 #define FLAG(F) [WLAN_STA_##F] = #F
  53         FLAG(AUTH),
  54         FLAG(ASSOC),
  55         FLAG(PS_STA),
  56         FLAG(AUTHORIZED),
  57         FLAG(SHORT_PREAMBLE),
  58         FLAG(WDS),
  59         FLAG(CLEAR_PS_FILT),
  60         FLAG(MFP),
  61         FLAG(BLOCK_BA),
  62         FLAG(PS_DRIVER),
  63         FLAG(PSPOLL),
  64         FLAG(TDLS_PEER),
  65         FLAG(TDLS_PEER_AUTH),
  66         FLAG(TDLS_INITIATOR),
  67         FLAG(TDLS_CHAN_SWITCH),
  68         FLAG(TDLS_OFF_CHANNEL),
  69         FLAG(TDLS_WIDER_BW),
  70         FLAG(UAPSD),
  71         FLAG(SP),
  72         FLAG(4ADDR_EVENT),
  73         FLAG(INSERTED),
  74         FLAG(RATE_CONTROL),
  75         FLAG(TOFFSET_KNOWN),
  76         FLAG(MPSP_OWNER),
  77         FLAG(MPSP_RECIPIENT),
  78         FLAG(PS_DELIVER),
  79         FLAG(USES_ENCRYPTION),
  80         FLAG(DECAP_OFFLOAD),
  81 #undef FLAG
  82 };
  83
  84 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
  85                               size_t count, loff_t *ppos)
  86 {
  87         char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
  88         char *end = buf + sizeof(buf) - 1;
  89         struct sta_info *sta = file->private_data;
  90         unsigned int flg;
  91
  92         BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
  93
  94         for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
  95                 if (test_sta_flag(sta, flg))
  96                         pos += scnprintf(pos, end - pos, "%s\n",
  97                                          sta_flag_names[flg]);
  98         }
  99
 100         return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
 101 }
 102 STA_OPS(flags);
 103
 104 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
 105                                           char __user *userbuf,
 106                                           size_t count, loff_t *ppos)
 107 {
 108         struct sta_info *sta = file->private_data;
 109         char buf[17*IEEE80211_NUM_ACS], *p = buf;
 110         int ac;
 111
 112         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 113                 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
 114                                skb_queue_len(&sta->ps_tx_buf[ac]) +
 115                                skb_queue_len(&sta->tx_filtered[ac]));
 116         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 117 }
 118 STA_OPS(num_ps_buf_frames);
 119
 120 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
 121                                       size_t count, loff_t *ppos)
 122 {
 123         char buf[15*IEEE80211_NUM_TIDS], *p = buf;
 124         int i;
 125         struct sta_info *sta = file->private_data;
 126         for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 127                 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
 128                                le16_to_cpu(sta->last_seq_ctrl[i]));
 129         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 130         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 131 }
 132 STA_OPS(last_seq_ctrl);
 133
 134 #define AQM_TXQ_ENTRY_LEN 130
 135
 136 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
 137                         size_t count, loff_t *ppos)
 138 {
 139         struct sta_info *sta = file->private_data;
 140         struct ieee80211_local *local = sta->local;
 141         size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
 142         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 143         struct txq_info *txqi;
 144         ssize_t rv;
 145         int i;
 146
 147         if (!buf)
 148                 return -ENOMEM;
 149
 150         spin_lock_bh(&local->fq.lock);
 151         rcu_read_lock();
 152
 153         p += scnprintf(p,
 154                        bufsz + buf - p,
 155                        "target %uus interval %uus ecn %s\n",
 156                        codel_time_to_us(sta->cparams.target),
 157                        codel_time_to_us(sta->cparams.interval),
 158                        sta->cparams.ecn ? "yes" : "no");
 159         p += scnprintf(p,
 160                        bufsz + buf - p,
 161                        "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
 162
 163         for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
 164                 if (!sta->sta.txq[i])
 165                         continue;
 166                 txqi = to_txq_info(sta->sta.txq[i]);
 167                 p += scnprintf(p, bufsz + buf - p,
 168                                "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s%s)\n",
 169                                txqi->txq.tid,
 170                                txqi->txq.ac,
 171                                txqi->tin.backlog_bytes,
 172                                txqi->tin.backlog_packets,
 173                                txqi->tin.flows,
 174                                txqi->cstats.drop_count,
 175                                txqi->cstats.ecn_mark,
 176                                txqi->tin.overlimit,
 177                                txqi->tin.collisions,
 178                                txqi->tin.tx_bytes,
 179                                txqi->tin.tx_packets,
 180                                txqi->flags,
 181                                test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
 182                                test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
 183                                test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "",
 184                                test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : "");
 185         }
 186
 187         rcu_read_unlock();
 188         spin_unlock_bh(&local->fq.lock);
 189
 190         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 191         kfree(buf);
 192         return rv;
 193 }
 194 STA_OPS(aqm);
 195
 196 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
 197                                 size_t count, loff_t *ppos)
 198 {
 199         struct sta_info *sta = file->private_data;
 200         struct ieee80211_local *local = sta->sdata->local;
 201         size_t bufsz = 400;
 202         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 203         u64 rx_airtime = 0, tx_airtime = 0;
 204         s32 deficit[IEEE80211_NUM_ACS];
 205         ssize_t rv;
 206         int ac;
 207
 208         if (!buf)
 209                 return -ENOMEM;
 210
 211         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 212                 spin_lock_bh(&local->active_txq_lock[ac]);
 213                 rx_airtime += sta->airtime[ac].rx_airtime;
 214                 tx_airtime += sta->airtime[ac].tx_airtime;
 215                 deficit[ac] = sta->airtime[ac].deficit;
 216                 spin_unlock_bh(&local->active_txq_lock[ac]);
 217         }
 218
 219         p += scnprintf(p, bufsz + buf - p,
 220                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 221                 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n",
 222                 rx_airtime, tx_airtime, sta->airtime_weight,
 223                 deficit[0], deficit[1], deficit[2], deficit[3]);
 224
 225         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 226         kfree(buf);
 227         return rv;
 228 }
 229
 230 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 231                                  size_t count, loff_t *ppos)
 232 {
 233         struct sta_info *sta = file->private_data;
 234         struct ieee80211_local *local = sta->sdata->local;
 235         int ac;
 236
 237         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 238                 spin_lock_bh(&local->active_txq_lock[ac]);
 239                 sta->airtime[ac].rx_airtime = 0;
 240                 sta->airtime[ac].tx_airtime = 0;
 241                 sta->airtime[ac].deficit = sta->airtime_weight;
 242                 spin_unlock_bh(&local->active_txq_lock[ac]);
 243         }
 244
 245         return count;
 246 }
 247 STA_OPS_RW(airtime);
 248
 249 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
 250                                 size_t count, loff_t *ppos)
 251 {
 252         struct sta_info *sta = file->private_data;
 253         struct ieee80211_local *local = sta->sdata->local;
 254         size_t bufsz = 400;
 255         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 256         u32 q_depth[IEEE80211_NUM_ACS];
 257         u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 258         ssize_t rv;
 259         int ac;
 260
 261         if (!buf)
 262                 return -ENOMEM;
 263
 264         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 265                 spin_lock_bh(&local->active_txq_lock[ac]);
 266                 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 267                 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 268                 spin_unlock_bh(&local->active_txq_lock[ac]);
 269                 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 270         }
 271
 272         p += scnprintf(p, bufsz + buf - p,
 273                 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 274                 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 275                 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 276                 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 277                 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
 278
 279         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 280         kfree(buf);
 281         return rv;
 282 }
 283
 284 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
 285                                  size_t count, loff_t *ppos)
 286 {
 287         struct sta_info *sta = file->private_data;
 288         u32 ac, q_limit_l, q_limit_h;
 289         char _buf[100] = {}, *buf = _buf;
 290
 291         if (count > sizeof(_buf))
 292                 return -EINVAL;
 293
 294         if (copy_from_user(buf, userbuf, count))
 295                 return -EFAULT;
 296
 297         buf[sizeof(_buf) - 1] = '\0';
 298         if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 299             != 3)
 300                 return -EINVAL;
 301
 302         if (ac >= IEEE80211_NUM_ACS)
 303                 return -EINVAL;
 304
 305         sta->airtime[ac].aql_limit_low = q_limit_l;
 306         sta->airtime[ac].aql_limit_high = q_limit_h;
 307
 308         return count;
 309 }
 310 STA_OPS_RW(aql);
 311
 312
 313 static ssize_t sta_agg_status_do_read(struct wiphy *wiphy, struct file *file,
 314                                       char *buf, size_t bufsz, void *data)
 315 {
 316         struct sta_info *sta = data;
 317         char *p = buf;
 318         int i;
 319         struct tid_ampdu_rx *tid_rx;
 320         struct tid_ampdu_tx *tid_tx;
 321
 322         p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
 323                         sta->ampdu_mlme.dialog_token_allocator + 1);
 324         p += scnprintf(p, bufsz + buf - p,
 325                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 326
 327         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 328                 bool tid_rx_valid;
 329
 330                 tid_rx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_rx[i]);
 331                 tid_tx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_tx[i]);
 332                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 333
 334                 p += scnprintf(p, bufsz + buf - p, "%02d", i);
 335                 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
 336                                tid_rx_valid);
 337                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 338                                tid_rx_valid ?
 339                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 340                 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
 341                                 tid_rx ? tid_rx->ssn : 0);
 342
 343                 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
 344                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 345                                 tid_tx ? tid_tx->dialog_token : 0);
 346                 p += scnprintf(p, bufsz + buf - p, "\t%03d",
 347                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 348                 p += scnprintf(p, bufsz + buf - p, "\n");
 349         }
 350
 351         return p - buf;
 352 }
 353
 354 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 355                                    size_t count, loff_t *ppos)
 356 {
 357         struct sta_info *sta = file->private_data;
 358         struct wiphy *wiphy = sta->local->hw.wiphy;
 359         size_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
 360         char *buf = kmalloc(bufsz, GFP_KERNEL);
 361         ssize_t ret;
 362
 363         if (!buf)
 364                 return -ENOMEM;
 365
 366         ret = wiphy_locked_debugfs_read(wiphy, file, buf, bufsz,
 367                                         userbuf, count, ppos,
 368                                         sta_agg_status_do_read, sta);
 369         kfree(buf);
 370
 371         return ret;
 372 }
 373
 374 static ssize_t sta_agg_status_do_write(struct wiphy *wiphy, struct file *file,
 375                                        char *buf, size_t count, void *data)
 376 {
 377         struct sta_info *sta = data;
 378         bool start, tx;
 379         unsigned long tid;
 380         char *pos = buf;
 381         int ret, timeout = 5000;
 382
 383         buf = strsep(&pos, " ");
 384         if (!buf)
 385                 return -EINVAL;
 386
 387         if (!strcmp(buf, "tx"))
 388                 tx = true;
 389         else if (!strcmp(buf, "rx"))
 390                 tx = false;
 391         else
 392                 return -EINVAL;
 393
 394         buf = strsep(&pos, " ");
 395         if (!buf)
 396                 return -EINVAL;
 397         if (!strcmp(buf, "start")) {
 398                 start = true;
 399                 if (!tx)
 400                         return -EINVAL;
 401         } else if (!strcmp(buf, "stop")) {
 402                 start = false;
 403         } else {
 404                 return -EINVAL;
 405         }
 406
 407         buf = strsep(&pos, " ");
 408         if (!buf)
 409                 return -EINVAL;
 410         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 411                 buf = strsep(&pos, " ");
 412                 if (!buf || !tx || !start)
 413                         return -EINVAL;
 414         }
 415
 416         ret = kstrtoul(buf, 0, &tid);
 417         if (ret || tid >= IEEE80211_NUM_TIDS)
 418                 return -EINVAL;
 419
 420         if (tx) {
 421                 if (start)
 422                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 423                                                             timeout);
 424                 else
 425                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 426         } else {
 427                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 428                                                3, true);
 429                 ret = 0;
 430         }
 431
 432         return ret ?: count;
 433 }
 434
 435 static ssize_t sta_agg_status_write(struct file *file,
 436                                     const char __user *userbuf,
 437                                     size_t count, loff_t *ppos)
 438 {
 439         struct sta_info *sta = file->private_data;
 440         struct wiphy *wiphy = sta->local->hw.wiphy;
 441         char _buf[26];
 442
 443         return wiphy_locked_debugfs_write(wiphy, file, _buf, sizeof(_buf),
 444                                           userbuf, count,
 445                                           sta_agg_status_do_write, sta);
 446 }
 447 STA_OPS_RW(agg_status);
 448
 449 /* link sta attributes */
 450 #define LINK_STA_OPS(name)                                              \
 451 static const struct debugfs_short_fops link_sta_ ##name## _ops = {              \
 452         .read = link_sta_##name##_read,                                 \
 453         .llseek = generic_file_llseek,                                  \
 454 }
 455
 456 static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
 457                                   size_t count, loff_t *ppos)
 458 {
 459         struct link_sta_info *link_sta = file->private_data;
 460         u8 mac[3 * ETH_ALEN + 1];
 461
 462         snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
 463
 464         return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN);
 465 }
 466
 467 LINK_STA_OPS(addr);
 468
 469 static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
 470                                      size_t count, loff_t *ppos)
 471 {
 472 #define PRINT_HT_CAP(_cond, _str) \
 473         do { \
 474         if (_cond) \
 475                         p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
 476         } while (0)
 477         char *buf, *p;
 478         int i;
 479         ssize_t bufsz = 512;
 480         struct link_sta_info *link_sta = file->private_data;
 481         struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
 482         ssize_t ret;
 483
 484         buf = kzalloc(bufsz, GFP_KERNEL);
 485         if (!buf)
 486                 return -ENOMEM;
 487         p = buf;
 488
 489         p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
 490                         htc->ht_supported ? "" : "not ");
 491         if (htc->ht_supported) {
 492                 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
 493
 494                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 495                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 496                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 497
 498                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 499                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 500                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 501
 502                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 503                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 504                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 505                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 506
 507                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 508                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 509                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 510                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 511
 512                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 513
 514                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 515                              "3839 bytes");
 516                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 517                              "7935 bytes");
 518
 519                 /*
 520                  * For beacons and probe response this would mean the BSS
 521                  * does or does not allow the usage of DSSS/CCK HT40.
 522                  * Otherwise it means the STA does or does not use
 523                  * DSSS/CCK HT40.
 524                  */
 525                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 526                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 527
 528                 /* BIT(13) is reserved */
 529
 530                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 531
 532                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 533
 534                 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
 535                                 htc->ampdu_factor, htc->ampdu_density);
 536                 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
 537
 538                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 539                         p += scnprintf(p, bufsz + buf - p, " %.2x",
 540                                         htc->mcs.rx_mask[i]);
 541                 p += scnprintf(p, bufsz + buf - p, "\n");
 542
 543                 /* If not set this is meaningless */
 544                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 545                         p += scnprintf(p, bufsz + buf - p,
 546                                        "MCS rx highest: %d Mbps\n",
 547                                        le16_to_cpu(htc->mcs.rx_highest));
 548                 }
 549
 550                 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
 551                                 htc->mcs.tx_params);
 552         }
 553
 554         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 555         kfree(buf);
 556         return ret;
 557 }
 558 LINK_STA_OPS(ht_capa);
 559
 560 static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
 561                                       size_t count, loff_t *ppos)
 562 {
 563         char *buf, *p;
 564         struct link_sta_info *link_sta = file->private_data;
 565         struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
 566         ssize_t ret;
 567         ssize_t bufsz = 512;
 568
 569         buf = kzalloc(bufsz, GFP_KERNEL);
 570         if (!buf)
 571                 return -ENOMEM;
 572         p = buf;
 573
 574         p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
 575                         vhtc->vht_supported ? "" : "not ");
 576         if (vhtc->vht_supported) {
 577                 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
 578                                vhtc->cap);
 579 #define PFLAG(a, b)                                                     \
 580                 do {                                                    \
 581                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 582                                 p += scnprintf(p, bufsz + buf - p, \
 583                                                "\t\t%s\n", b);          \
 584                 } while (0)
 585
 586                 switch (vhtc->cap & 0x3) {
 587                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 588                         p += scnprintf(p, bufsz + buf - p,
 589                                        "\t\tMAX-MPDU-3895\n");
 590                         break;
 591                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 592                         p += scnprintf(p, bufsz + buf - p,
 593                                        "\t\tMAX-MPDU-7991\n");
 594                         break;
 595                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 596                         p += scnprintf(p, bufsz + buf - p,
 597                                        "\t\tMAX-MPDU-11454\n");
 598                         break;
 599                 default:
 600                         p += scnprintf(p, bufsz + buf - p,
 601                                        "\t\tMAX-MPDU-UNKNOWN\n");
 602                 }
 603                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 604                 case 0:
 605                         p += scnprintf(p, bufsz + buf - p,
 606                                        "\t\t80Mhz\n");
 607                         break;
 608                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 609                         p += scnprintf(p, bufsz + buf - p,
 610                                        "\t\t160Mhz\n");
 611                         break;
 612                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 613                         p += scnprintf(p, bufsz + buf - p,
 614                                        "\t\t80+80Mhz\n");
 615                         break;
 616                 default:
 617                         p += scnprintf(p, bufsz + buf - p,
 618                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 619                                        (vhtc->cap >> 2) & 0x3);
 620                 }
 621                 PFLAG(RXLDPC, "RXLDPC");
 622                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 623                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 624                 PFLAG(TXSTBC, "TXSTBC");
 625                 p += scnprintf(p, bufsz + buf - p,
 626                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 627                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 628                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 629                 p += scnprintf(p, bufsz + buf - p,
 630                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 631                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 632                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 633                 p += scnprintf(p, bufsz + buf - p,
 634                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 635                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 636                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 637                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 638                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 639                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 640                 PFLAG(HTC_VHT, "HTC-VHT");
 641                 p += scnprintf(p, bufsz + buf - p,
 642                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 643                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 644                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 645                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 646                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 647                 p += scnprintf(p, bufsz + buf - p,
 648                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 649                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 650                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 651                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 652
 653                 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
 654                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 655                 if (vhtc->vht_mcs.rx_highest)
 656                         p += scnprintf(p, bufsz + buf - p,
 657                                        "MCS RX highest: %d Mbps\n",
 658                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 659                 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
 660                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 661                 if (vhtc->vht_mcs.tx_highest)
 662                         p += scnprintf(p, bufsz + buf - p,
 663                                        "MCS TX highest: %d Mbps\n",
 664                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 665 #undef PFLAG
 666         }
 667
 668         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 669         kfree(buf);
 670         return ret;
 671 }
 672 LINK_STA_OPS(vht_capa);
 673
 674 static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
 675                                      size_t count, loff_t *ppos)
 676 {
 677         char *buf, *p;
 678         size_t buf_sz = PAGE_SIZE;
 679         struct link_sta_info *link_sta = file->private_data;
 680         struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
 681         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 682         u8 ppe_size;
 683         u8 *cap;
 684         int i;
 685         ssize_t ret;
 686
 687         buf = kmalloc(buf_sz, GFP_KERNEL);
 688         if (!buf)
 689                 return -ENOMEM;
 690         p = buf;
 691
 692         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 693                        hec->has_he ? "" : "not ");
 694         if (!hec->has_he)
 695                 goto out;
 696
 697         cap = hec->he_cap_elem.mac_cap_info;
 698         p += scnprintf(p, buf_sz + buf - p,
 699                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 700                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 701
 702 #define PRINT(fmt, ...)                                                 \
 703         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 704                        ##__VA_ARGS__)
 705
 706 #define PFLAG(t, n, a, b)                                               \
 707         do {                                                            \
 708                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 709                         PRINT("%s", b);                                 \
 710         } while (0)
 711
 712 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 713         do {                                                            \
 714                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 715                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 716                 PRINT(fmt, (s << idx) + (m * idx));                     \
 717         } while (0)
 718
 719 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 720         do {                                                            \
 721                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 722                         PRINT("%s", b);                                 \
 723                         break;                                          \
 724                 }                                                       \
 725                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 726         } while (0)
 727
 728         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 729         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 730         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 731         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 732                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 733         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 734                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 735
 736         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 737                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 738         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 739                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 740         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 741                     "MULTI-TID-AGG-RX-QOS-%d");
 742
 743         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 744                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 745                 case 0:
 746                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 747                         break;
 748                 case 1:
 749                         PRINT("LINK-ADAPTATION-RESERVED");
 750                         break;
 751                 case 2:
 752                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 753                         break;
 754                 case 3:
 755                         PRINT("LINK-ADAPTATION-BOTH");
 756                         break;
 757                 }
 758         }
 759
 760         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 761         PFLAG(MAC, 2, TRS, "TRS");
 762         PFLAG(MAC, 2, BSR, "BSR");
 763         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 764         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 765         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 766         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 767
 768         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 769         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 770
 771         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 772         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
 773                 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
 774                 break;
 775         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
 776                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
 777                 break;
 778         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
 779                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
 780                 break;
 781         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
 782                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
 783                 break;
 784         }
 785
 786         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 787         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 788         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 789
 790         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 791         PFLAG(MAC, 4, QTP, "QTP");
 792         PFLAG(MAC, 4, BQR, "BQR");
 793         PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
 794         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 795         PFLAG(MAC, 4, OPS, "OPS");
 796         PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
 797
 798         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 799
 800         PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
 801               "SUBCHAN-SELECTIVE-TRANSMISSION");
 802         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 803         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 804         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 805         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 806         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 807
 808         cap = hec->he_cap_elem.phy_cap_info;
 809         p += scnprintf(p, buf_sz + buf - p,
 810                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 811                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 812                        cap[7], cap[8], cap[9], cap[10]);
 813
 814         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 815               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 816         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 817               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 818         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 819               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 820         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 821               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 822         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 823               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 824         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 825               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 826
 827         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 828         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 829                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 830                 break;
 831         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 832                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 833                 break;
 834         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 835                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 836                 break;
 837         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 838                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 839                 break;
 840         }
 841
 842         PFLAG(PHY, 1, DEVICE_CLASS_A,
 843               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 844         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 845               "LDPC-CODING-IN-PAYLOAD");
 846         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 847               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 848         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 849
 850         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 851         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 852         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 853         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 854         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 855         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 856         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 857
 858         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 859         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 860                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 861                 break;
 862         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 863                 PRINT("DCM-MAX-CONST-TX-BPSK");
 864                 break;
 865         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 866                 PRINT("DCM-MAX-CONST-TX-QPSK");
 867                 break;
 868         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 869                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 870                 break;
 871         }
 872
 873         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 874         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 875
 876         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 877         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 878                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 879                 break;
 880         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 881                 PRINT("DCM-MAX-CONST-RX-BPSK");
 882                 break;
 883         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 884                 PRINT("DCM-MAX-CONST-RX-QPSK");
 885                 break;
 886         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 887                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 888                 break;
 889         }
 890
 891         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 892         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 893         PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
 894               "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
 895         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 896
 897         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 898         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 899
 900         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 901                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 902         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 903                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 904
 905         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 906                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 907         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 908                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 909         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 910         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 911
 912         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 913         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 914         PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
 915         PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
 916               "MU-BEAMFORMING-PARTIAL-BW-FB");
 917         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 918         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 919         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 920               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 921         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 922
 923         PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
 924         PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
 925         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 926               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 927         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 928         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 929         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 930
 931         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 932               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 933         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 934               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 935         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 936         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 937         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 938               "HE-ER-SU-1XLTF-AND-08-US-GI");
 939         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 940               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 941
 942         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 943         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 944                 PRINT("DCM-MAX-RU-242");
 945                 break;
 946         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 947                 PRINT("DCM-MAX-RU-484");
 948                 break;
 949         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 950                 PRINT("DCM-MAX-RU-996");
 951                 break;
 952         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 953                 PRINT("DCM-MAX-RU-2x996");
 954                 break;
 955         }
 956
 957         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 958               "LONGER-THAN-16-SIGB-OFDM-SYM");
 959         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 960               "NON-TRIGGERED-CQI-FEEDBACK");
 961         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 962               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 963         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 964               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 965         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 966               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 967         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 968               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 969
 970         switch (u8_get_bits(cap[9],
 971                             IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
 972         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
 973                 PRINT("NOMINAL-PACKET-PADDING-0US");
 974                 break;
 975         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
 976                 PRINT("NOMINAL-PACKET-PADDING-8US");
 977                 break;
 978         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
 979                 PRINT("NOMINAL-PACKET-PADDING-16US");
 980                 break;
 981         }
 982
 983 #undef PFLAG_RANGE_DEFAULT
 984 #undef PFLAG_RANGE
 985 #undef PFLAG
 986
 987 #define PRINT_NSS_SUPP(f, n)                                            \
 988         do {                                                            \
 989                 int _i;                                                 \
 990                 u16 v = le16_to_cpu(nss->f);                            \
 991                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 992                 for (_i = 0; _i < 8; _i += 2) {                         \
 993                         switch ((v >> _i) & 0x3) {                      \
 994                         case 0:                                         \
 995                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 996                                 break;                                  \
 997                         case 1:                                         \
 998                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 999                                 break;                                  \
1000                         case 2:                                         \
1001                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
1002                                 break;                                  \
1003                         case 3:                                         \
1004                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
1005                                 break;                                  \
1006                         }                                               \
1007                 }                                                       \
1008         } while (0)
1009
1010         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1011         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1012
1013         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1014                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1015                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1016         }
1017
1018         if (cap[0] &
1019             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1020                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1021                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1022         }
1023
1024 #undef PRINT_NSS_SUPP
1025 #undef PRINT
1026
1027         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1028                 goto out;
1029
1030         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1031                        hec->ppe_thres[0]);
1032
1033         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1034         for (i = 1; i < ppe_size; i++) {
1035                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1036                                hec->ppe_thres[i]);
1037         }
1038         p += scnprintf(p, buf_sz + buf - p, "\n");
1039
1040 out:
1041         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1042         kfree(buf);
1043         return ret;
1044 }
1045 LINK_STA_OPS(he_capa);
1046
1047 static ssize_t link_sta_eht_capa_read(struct file *file, char __user *userbuf,
1048                                       size_t count, loff_t *ppos)
1049 {
1050         char *buf, *p;
1051         size_t buf_sz = PAGE_SIZE;
1052         struct link_sta_info *link_sta = file->private_data;
1053         struct ieee80211_sta_eht_cap *bec = &link_sta->pub->eht_cap;
1054         struct ieee80211_eht_cap_elem_fixed *fixed = &bec->eht_cap_elem;
1055         struct ieee80211_eht_mcs_nss_supp *nss = &bec->eht_mcs_nss_supp;
1056         u8 *cap;
1057         int i;
1058         ssize_t ret;
1059         static const char *mcs_desc[] = { "0-7", "8-9", "10-11", "12-13"};
1060
1061         buf = kmalloc(buf_sz, GFP_KERNEL);
1062         if (!buf)
1063                 return -ENOMEM;
1064         p = buf;
1065
1066         p += scnprintf(p, buf_sz + buf - p, "EHT %ssupported\n",
1067                        bec->has_eht ? "" : "not ");
1068         if (!bec->has_eht)
1069                 goto out;
1070
1071         p += scnprintf(p, buf_sz + buf - p,
1072                        "MAC-CAP: %#.2x %#.2x\n",
1073                        fixed->mac_cap_info[0], fixed->mac_cap_info[1]);
1074         p += scnprintf(p, buf_sz + buf - p,
1075                        "PHY-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
1076                        fixed->phy_cap_info[0], fixed->phy_cap_info[1],
1077                        fixed->phy_cap_info[2], fixed->phy_cap_info[3],
1078                        fixed->phy_cap_info[4], fixed->phy_cap_info[5],
1079                        fixed->phy_cap_info[6], fixed->phy_cap_info[7],
1080                        fixed->phy_cap_info[8]);
1081
1082 #define PRINT(fmt, ...)                                                 \
1083         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
1084                        ##__VA_ARGS__)
1085
1086 #define PFLAG(t, n, a, b)                                               \
1087         do {                                                            \
1088                 if (cap[n] & IEEE80211_EHT_##t##_CAP##n##_##a)          \
1089                         PRINT("%s", b);                                 \
1090         } while (0)
1091
1092         cap = fixed->mac_cap_info;
1093         PFLAG(MAC, 0, EPCS_PRIO_ACCESS, "EPCS-PRIO-ACCESS");
1094         PFLAG(MAC, 0, OM_CONTROL, "OM-CONTROL");
1095         PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE1, "TRIG-TXOP-SHARING-MODE1");
1096         PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE2, "TRIG-TXOP-SHARING-MODE2");
1097         PFLAG(MAC, 0, RESTRICTED_TWT, "RESTRICTED-TWT");
1098         PFLAG(MAC, 0, SCS_TRAFFIC_DESC, "SCS-TRAFFIC-DESC");
1099         switch ((cap[0] & 0xc0) >> 6) {
1100         case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895:
1101                 PRINT("MAX-MPDU-LEN: 3985");
1102                 break;
1103         case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991:
1104                 PRINT("MAX-MPDU-LEN: 7991");
1105                 break;
1106         case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454:
1107                 PRINT("MAX-MPDU-LEN: 11454");
1108                 break;
1109         }
1110
1111         cap = fixed->phy_cap_info;
1112         PFLAG(PHY, 0, 320MHZ_IN_6GHZ, "320MHZ-IN-6GHZ");
1113         PFLAG(PHY, 0, 242_TONE_RU_GT20MHZ, "242-TONE-RU-GT20MHZ");
1114         PFLAG(PHY, 0, NDP_4_EHT_LFT_32_GI, "NDP-4-EHT-LFT-32-GI");
1115         PFLAG(PHY, 0, PARTIAL_BW_UL_MU_MIMO, "PARTIAL-BW-UL-MU-MIMO");
1116         PFLAG(PHY, 0, SU_BEAMFORMER, "SU-BEAMFORMER");
1117         PFLAG(PHY, 0, SU_BEAMFORMEE, "SU-BEAMFORMEE");
1118         i = cap[0] >> 7;
1119         i |= (cap[1] & 0x3) << 1;
1120         PRINT("BEAMFORMEE-80-NSS: %i", i);
1121         PRINT("BEAMFORMEE-160-NSS: %i", (cap[1] >> 2) & 0x7);
1122         PRINT("BEAMFORMEE-320-NSS: %i", (cap[1] >> 5) & 0x7);
1123         PRINT("SOUNDING-DIM-80-NSS: %i", (cap[2] & 0x7));
1124         PRINT("SOUNDING-DIM-160-NSS: %i", (cap[2] >> 3) & 0x7);
1125         i = cap[2] >> 6;
1126         i |= (cap[3] & 0x1) << 3;
1127         PRINT("SOUNDING-DIM-320-NSS: %i", i);
1128
1129         PFLAG(PHY, 3, NG_16_SU_FEEDBACK, "NG-16-SU-FEEDBACK");
1130         PFLAG(PHY, 3, NG_16_MU_FEEDBACK, "NG-16-MU-FEEDBACK");
1131         PFLAG(PHY, 3, CODEBOOK_4_2_SU_FDBK, "CODEBOOK-4-2-SU-FDBK");
1132         PFLAG(PHY, 3, CODEBOOK_7_5_MU_FDBK, "CODEBOOK-7-5-MU-FDBK");
1133         PFLAG(PHY, 3, TRIG_SU_BF_FDBK, "TRIG-SU-BF-FDBK");
1134         PFLAG(PHY, 3, TRIG_MU_BF_PART_BW_FDBK, "TRIG-MU-BF-PART-BW-FDBK");
1135         PFLAG(PHY, 3, TRIG_CQI_FDBK, "TRIG-CQI-FDBK");
1136
1137         PFLAG(PHY, 4, PART_BW_DL_MU_MIMO, "PART-BW-DL-MU-MIMO");
1138         PFLAG(PHY, 4, PSR_SR_SUPP, "PSR-SR-SUPP");
1139         PFLAG(PHY, 4, POWER_BOOST_FACT_SUPP, "POWER-BOOST-FACT-SUPP");
1140         PFLAG(PHY, 4, EHT_MU_PPDU_4_EHT_LTF_08_GI, "EHT-MU-PPDU-4-EHT-LTF-08-GI");
1141         PRINT("MAX_NC: %i", cap[4] >> 4);
1142
1143         PFLAG(PHY, 5, NON_TRIG_CQI_FEEDBACK, "NON-TRIG-CQI-FEEDBACK");
1144         PFLAG(PHY, 5, TX_LESS_242_TONE_RU_SUPP, "TX-LESS-242-TONE-RU-SUPP");
1145         PFLAG(PHY, 5, RX_LESS_242_TONE_RU_SUPP, "RX-LESS-242-TONE-RU-SUPP");
1146         PFLAG(PHY, 5, PPE_THRESHOLD_PRESENT, "PPE_THRESHOLD_PRESENT");
1147         switch (cap[5] >> 4 & 0x3) {
1148         case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
1149                 PRINT("NOMINAL_PKT_PAD: 0us");
1150                 break;
1151         case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
1152                 PRINT("NOMINAL_PKT_PAD: 8us");
1153                 break;
1154         case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
1155                 PRINT("NOMINAL_PKT_PAD: 16us");
1156                 break;
1157         case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
1158                 PRINT("NOMINAL_PKT_PAD: 20us");
1159                 break;
1160         }
1161         i = cap[5] >> 6;
1162         i |= cap[6] & 0x7;
1163         PRINT("MAX-NUM-SUPP-EHT-LTF: %i", i);
1164         PFLAG(PHY, 5, SUPP_EXTRA_EHT_LTF, "SUPP-EXTRA-EHT-LTF");
1165
1166         i = (cap[6] >> 3) & 0xf;
1167         PRINT("MCS15-SUPP-MASK: %i", i);
1168         PFLAG(PHY, 6, EHT_DUP_6GHZ_SUPP, "EHT-DUP-6GHZ-SUPP");
1169
1170         PFLAG(PHY, 7, 20MHZ_STA_RX_NDP_WIDER_BW, "20MHZ-STA-RX-NDP-WIDER-BW");
1171         PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_80MHZ, "NON-OFDMA-UL-MU-MIMO-80MHZ");
1172         PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_160MHZ, "NON-OFDMA-UL-MU-MIMO-160MHZ");
1173         PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_320MHZ, "NON-OFDMA-UL-MU-MIMO-320MHZ");
1174         PFLAG(PHY, 7, MU_BEAMFORMER_80MHZ, "MU-BEAMFORMER-80MHZ");
1175         PFLAG(PHY, 7, MU_BEAMFORMER_160MHZ, "MU-BEAMFORMER-160MHZ");
1176         PFLAG(PHY, 7, MU_BEAMFORMER_320MHZ, "MU-BEAMFORMER-320MHZ");
1177         PFLAG(PHY, 7, TB_SOUNDING_FDBK_RATE_LIMIT, "TB-SOUNDING-FDBK-RATE-LIMIT");
1178
1179         PFLAG(PHY, 8, RX_1024QAM_WIDER_BW_DL_OFDMA, "RX-1024QAM-WIDER-BW-DL-OFDMA");
1180         PFLAG(PHY, 8, RX_4096QAM_WIDER_BW_DL_OFDMA, "RX-4096QAM-WIDER-BW-DL-OFDMA");
1181
1182 #undef PFLAG
1183
1184         PRINT(""); /* newline */
1185         if (!(link_sta->pub->he_cap.he_cap_elem.phy_cap_info[0] &
1186               IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) {
1187                 u8 *mcs_vals = (u8 *)(&nss->only_20mhz);
1188
1189                 for (i = 0; i < 4; i++)
1190                         PRINT("EHT bw=20 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1191                               mcs_desc[i],
1192                               mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1193         } else {
1194                 u8 *mcs_vals = (u8 *)(&nss->bw._80);
1195
1196                 for (i = 0; i < 3; i++)
1197                         PRINT("EHT bw <= 80 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1198                               mcs_desc[i + 1],
1199                               mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1200
1201                 mcs_vals = (u8 *)(&nss->bw._160);
1202                 for (i = 0; i < 3; i++)
1203                         PRINT("EHT bw <= 160 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1204                               mcs_desc[i + 1],
1205                               mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1206
1207                 mcs_vals = (u8 *)(&nss->bw._320);
1208                 for (i = 0; i < 3; i++)
1209                         PRINT("EHT bw <= 320 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1210                               mcs_desc[i + 1],
1211                               mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1212         }
1213
1214         if (cap[5] & IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
1215                 u8 ppe_size = ieee80211_eht_ppe_size(bec->eht_ppe_thres[0], cap);
1216
1217                 p += scnprintf(p, buf_sz + buf - p, "EHT PPE Thresholds: ");
1218                 for (i = 0; i < ppe_size; i++)
1219                         p += scnprintf(p, buf_sz + buf - p, "0x%02x ",
1220                                        bec->eht_ppe_thres[i]);
1221                 PRINT(""); /* newline */
1222         }
1223
1224 out:
1225         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1226         kfree(buf);
1227         return ret;
1228 }
1229 LINK_STA_OPS(eht_capa);
1230
1231 #define DEBUGFS_ADD(name) \
1232         debugfs_create_file(#name, 0400, \
1233                 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1234
1235 #define DEBUGFS_ADD_COUNTER(name, field)                                \
1236         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1237
1238 void ieee80211_sta_debugfs_add(struct sta_info *sta)
1239 {
1240         struct ieee80211_local *local = sta->local;
1241         struct ieee80211_sub_if_data *sdata = sta->sdata;
1242         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1243         u8 mac[3*ETH_ALEN];
1244
1245         if (!stations_dir)
1246                 return;
1247
1248         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1249
1250         /*
1251          * This might fail due to a race condition:
1252          * When mac80211 unlinks a station, the debugfs entries
1253          * remain, but it is already possible to link a new
1254          * station with the same address which triggers adding
1255          * it to debugfs; therefore, if the old station isn't
1256          * destroyed quickly enough the old station's debugfs
1257          * dir might still be around.
1258          */
1259         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1260
1261         DEBUGFS_ADD(flags);
1262         DEBUGFS_ADD(aid);
1263         DEBUGFS_ADD(num_ps_buf_frames);
1264         DEBUGFS_ADD(last_seq_ctrl);
1265         DEBUGFS_ADD(agg_status);
1266         /* FIXME: Kept here as the statistics are only done on the deflink */
1267         DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1268
1269         DEBUGFS_ADD(aqm);
1270         DEBUGFS_ADD(airtime);
1271
1272         if (wiphy_ext_feature_isset(local->hw.wiphy,
1273                                     NL80211_EXT_FEATURE_AQL))
1274                 DEBUGFS_ADD(aql);
1275
1276         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1277                            &sta->driver_buffered_tids);
1278
1279         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1280 }
1281
1282 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1283 {
1284         debugfs_remove_recursive(sta->debugfs_dir);
1285         sta->debugfs_dir = NULL;
1286 }
1287
1288 #undef DEBUGFS_ADD
1289 #undef DEBUGFS_ADD_COUNTER
1290
1291 #define DEBUGFS_ADD(name) \
1292         debugfs_create_file(#name, 0400, \
1293                 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1294 #define DEBUGFS_ADD_COUNTER(name, field)                                \
1295         debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1296
1297 void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1298 {
1299         if (WARN_ON(!link_sta->sta->debugfs_dir))
1300                 return;
1301
1302         /* For non-MLO, leave the files in the main directory. */
1303         if (link_sta->sta->sta.valid_links) {
1304                 char link_dir_name[10];
1305
1306                 snprintf(link_dir_name, sizeof(link_dir_name),
1307                          "link-%d", link_sta->link_id);
1308
1309                 link_sta->debugfs_dir =
1310                         debugfs_create_dir(link_dir_name,
1311                                            link_sta->sta->debugfs_dir);
1312
1313                 DEBUGFS_ADD(addr);
1314         } else {
1315                 if (WARN_ON(link_sta != &link_sta->sta->deflink))
1316                         return;
1317
1318                 link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1319         }
1320
1321         DEBUGFS_ADD(ht_capa);
1322         DEBUGFS_ADD(vht_capa);
1323         DEBUGFS_ADD(he_capa);
1324         DEBUGFS_ADD(eht_capa);
1325
1326         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1327         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1328 }
1329
1330 void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1331 {
1332         if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1333                 link_sta->debugfs_dir = NULL;
1334                 return;
1335         }
1336
1337         if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1338                 WARN_ON(link_sta != &link_sta->sta->deflink);
1339                 link_sta->sta->debugfs_dir = NULL;
1340                 return;
1341         }
1342
1343         debugfs_remove_recursive(link_sta->debugfs_dir);
1344         link_sta->debugfs_dir = NULL;
1345 }
1346
1347 void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1348 {
1349         if (WARN_ON(!link_sta->debugfs_dir))
1350                 return;
1351
1352         drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1353                                  link_sta->pub, link_sta->debugfs_dir);
1354 }
1355
1356 void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1357 {
1358         if (!link_sta->debugfs_dir)
1359                 return;
1360
1361         if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1362                 return;
1363
1364         /* Recreate the directory excluding the driver data */
1365         debugfs_remove_recursive(link_sta->debugfs_dir);
1366         link_sta->debugfs_dir = NULL;
1367
1368         ieee80211_link_sta_debugfs_add(link_sta);
1369 }