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 <jbenc@suse.cz>
   5  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright 2013-2014  Intel Mobile Communications GmbH
   7  * Copyright(c) 2016 Intel Deutschland GmbH
   8  * Copyright (C) 2018 - 2020 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 attributtes */
  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 file_operations sta_ ##name## _ops = {              \
  34         .read = sta_##name##_read,                                      \
  35         .open = simple_open,                                            \
  36         .llseek = generic_file_llseek,                                  \
  37 }
  38
  39 #define STA_OPS_RW(name)                                                \
  40 static const struct file_operations sta_ ##name## _ops = {              \
  41         .read = sta_##name##_read,                                      \
  42         .write = sta_##name##_write,                                    \
  43         .open = simple_open,                                            \
  44         .llseek = generic_file_llseek,                                  \
  45 }
  46
  47 #define STA_FILE(name, field, format)                                   \
  48                 STA_READ_##format(name, field)                          \
  49                 STA_OPS(name)
  50
  51 STA_FILE(aid, sta.aid, D);
  52
  53 static const char * const sta_flag_names[] = {
  54 #define FLAG(F) [WLAN_STA_##F] = #F
  55         FLAG(AUTH),
  56         FLAG(ASSOC),
  57         FLAG(PS_STA),
  58         FLAG(AUTHORIZED),
  59         FLAG(SHORT_PREAMBLE),
  60         FLAG(WDS),
  61         FLAG(CLEAR_PS_FILT),
  62         FLAG(MFP),
  63         FLAG(BLOCK_BA),
  64         FLAG(PS_DRIVER),
  65         FLAG(PSPOLL),
  66         FLAG(TDLS_PEER),
  67         FLAG(TDLS_PEER_AUTH),
  68         FLAG(TDLS_INITIATOR),
  69         FLAG(TDLS_CHAN_SWITCH),
  70         FLAG(TDLS_OFF_CHANNEL),
  71         FLAG(TDLS_WIDER_BW),
  72         FLAG(UAPSD),
  73         FLAG(SP),
  74         FLAG(4ADDR_EVENT),
  75         FLAG(INSERTED),
  76         FLAG(RATE_CONTROL),
  77         FLAG(TOFFSET_KNOWN),
  78         FLAG(MPSP_OWNER),
  79         FLAG(MPSP_RECIPIENT),
  80         FLAG(PS_DELIVER),
  81         FLAG(USES_ENCRYPTION),
  82 #undef FLAG
  83 };
  84
  85 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
  86                               size_t count, loff_t *ppos)
  87 {
  88         char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
  89         char *end = buf + sizeof(buf) - 1;
  90         struct sta_info *sta = file->private_data;
  91         unsigned int flg;
  92
  93         BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
  94
  95         for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
  96                 if (test_sta_flag(sta, flg))
  97                         pos += scnprintf(pos, end - pos, "%s\n",
  98                                          sta_flag_names[flg]);
  99         }
 100
 101         return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
 102 }
 103 STA_OPS(flags);
 104
 105 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
 106                                           char __user *userbuf,
 107                                           size_t count, loff_t *ppos)
 108 {
 109         struct sta_info *sta = file->private_data;
 110         char buf[17*IEEE80211_NUM_ACS], *p = buf;
 111         int ac;
 112
 113         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 114                 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
 115                                skb_queue_len(&sta->ps_tx_buf[ac]) +
 116                                skb_queue_len(&sta->tx_filtered[ac]));
 117         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 118 }
 119 STA_OPS(num_ps_buf_frames);
 120
 121 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
 122                                       size_t count, loff_t *ppos)
 123 {
 124         char buf[15*IEEE80211_NUM_TIDS], *p = buf;
 125         int i;
 126         struct sta_info *sta = file->private_data;
 127         for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 128                 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
 129                                le16_to_cpu(sta->last_seq_ctrl[i]));
 130         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 131         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 132 }
 133 STA_OPS(last_seq_ctrl);
 134
 135 #define AQM_TXQ_ENTRY_LEN 130
 136
 137 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
 138                         size_t count, loff_t *ppos)
 139 {
 140         struct sta_info *sta = file->private_data;
 141         struct ieee80211_local *local = sta->local;
 142         size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
 143         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 144         struct txq_info *txqi;
 145         ssize_t rv;
 146         int i;
 147
 148         if (!buf)
 149                 return -ENOMEM;
 150
 151         spin_lock_bh(&local->fq.lock);
 152         rcu_read_lock();
 153
 154         p += scnprintf(p,
 155                        bufsz+buf-p,
 156                        "target %uus interval %uus ecn %s\n",
 157                        codel_time_to_us(sta->cparams.target),
 158                        codel_time_to_us(sta->cparams.interval),
 159                        sta->cparams.ecn ? "yes" : "no");
 160         p += scnprintf(p,
 161                        bufsz+buf-p,
 162                        "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
 163
 164         for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
 165                 if (!sta->sta.txq[i])
 166                         continue;
 167                 txqi = to_txq_info(sta->sta.txq[i]);
 168                 p += scnprintf(p, bufsz+buf-p,
 169                                "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
 170                                txqi->txq.tid,
 171                                txqi->txq.ac,
 172                                txqi->tin.backlog_bytes,
 173                                txqi->tin.backlog_packets,
 174                                txqi->tin.flows,
 175                                txqi->cstats.drop_count,
 176                                txqi->cstats.ecn_mark,
 177                                txqi->tin.overlimit,
 178                                txqi->tin.collisions,
 179                                txqi->tin.tx_bytes,
 180                                txqi->tin.tx_packets,
 181                                txqi->flags,
 182                                test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
 183                                test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
 184                                test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
 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         s64 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: %lld us VI: %lld us BE: %lld us BK: %lld 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_read(struct file *file, char __user *userbuf,
 314                                         size_t count, loff_t *ppos)
 315 {
 316         char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 317         int i;
 318         struct sta_info *sta = file->private_data;
 319         struct tid_ampdu_rx *tid_rx;
 320         struct tid_ampdu_tx *tid_tx;
 321
 322         rcu_read_lock();
 323
 324         p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 325                         sta->ampdu_mlme.dialog_token_allocator + 1);
 326         p += scnprintf(p, sizeof(buf) + buf - p,
 327                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 328
 329         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 330                 bool tid_rx_valid;
 331
 332                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 333                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 334                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 335
 336                 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 337                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
 338                                tid_rx_valid);
 339                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 340                                tid_rx_valid ?
 341                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 342                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 343                                 tid_rx ? tid_rx->ssn : 0);
 344
 345                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
 346                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 347                                 tid_tx ? tid_tx->dialog_token : 0);
 348                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
 349                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 350                 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
 351         }
 352         rcu_read_unlock();
 353
 354         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 355 }
 356
 357 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 358                                     size_t count, loff_t *ppos)
 359 {
 360         char _buf[25] = {}, *buf = _buf;
 361         struct sta_info *sta = file->private_data;
 362         bool start, tx;
 363         unsigned long tid;
 364         char *pos;
 365         int ret, timeout = 5000;
 366
 367         if (count > sizeof(_buf))
 368                 return -EINVAL;
 369
 370         if (copy_from_user(buf, userbuf, count))
 371                 return -EFAULT;
 372
 373         buf[sizeof(_buf) - 1] = '\0';
 374         pos = buf;
 375         buf = strsep(&pos, " ");
 376         if (!buf)
 377                 return -EINVAL;
 378
 379         if (!strcmp(buf, "tx"))
 380                 tx = true;
 381         else if (!strcmp(buf, "rx"))
 382                 tx = false;
 383         else
 384                 return -EINVAL;
 385
 386         buf = strsep(&pos, " ");
 387         if (!buf)
 388                 return -EINVAL;
 389         if (!strcmp(buf, "start")) {
 390                 start = true;
 391                 if (!tx)
 392                         return -EINVAL;
 393         } else if (!strcmp(buf, "stop")) {
 394                 start = false;
 395         } else {
 396                 return -EINVAL;
 397         }
 398
 399         buf = strsep(&pos, " ");
 400         if (!buf)
 401                 return -EINVAL;
 402         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 403                 buf = strsep(&pos, " ");
 404                 if (!buf || !tx || !start)
 405                         return -EINVAL;
 406         }
 407
 408         ret = kstrtoul(buf, 0, &tid);
 409         if (ret || tid >= IEEE80211_NUM_TIDS)
 410                 return -EINVAL;
 411
 412         if (tx) {
 413                 if (start)
 414                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 415                                                             timeout);
 416                 else
 417                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 418         } else {
 419                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 420                                                3, true);
 421                 ret = 0;
 422         }
 423
 424         return ret ?: count;
 425 }
 426 STA_OPS_RW(agg_status);
 427
 428 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 429                                 size_t count, loff_t *ppos)
 430 {
 431 #define PRINT_HT_CAP(_cond, _str) \
 432         do { \
 433         if (_cond) \
 434                         p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
 435         } while (0)
 436         char buf[512], *p = buf;
 437         int i;
 438         struct sta_info *sta = file->private_data;
 439         struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
 440
 441         p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 442                         htc->ht_supported ? "" : "not ");
 443         if (htc->ht_supported) {
 444                 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 445
 446                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 447                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 448                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 449
 450                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 451                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 452                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 453
 454                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 455                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 456                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 457                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 458
 459                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 460                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 461                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 462                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 463
 464                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 465
 466                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 467                              "3839 bytes");
 468                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 469                              "7935 bytes");
 470
 471                 /*
 472                  * For beacons and probe response this would mean the BSS
 473                  * does or does not allow the usage of DSSS/CCK HT40.
 474                  * Otherwise it means the STA does or does not use
 475                  * DSSS/CCK HT40.
 476                  */
 477                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 478                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 479
 480                 /* BIT(13) is reserved */
 481
 482                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 483
 484                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 485
 486                 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 487                                 htc->ampdu_factor, htc->ampdu_density);
 488                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
 489
 490                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 491                         p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 492                                         htc->mcs.rx_mask[i]);
 493                 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 494
 495                 /* If not set this is meaningless */
 496                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 497                         p += scnprintf(p, sizeof(buf)+buf-p,
 498                                        "MCS rx highest: %d Mbps\n",
 499                                        le16_to_cpu(htc->mcs.rx_highest));
 500                 }
 501
 502                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 503                                 htc->mcs.tx_params);
 504         }
 505
 506         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 507 }
 508 STA_OPS(ht_capa);
 509
 510 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 511                                  size_t count, loff_t *ppos)
 512 {
 513         char buf[512], *p = buf;
 514         struct sta_info *sta = file->private_data;
 515         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
 516
 517         p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
 518                         vhtc->vht_supported ? "" : "not ");
 519         if (vhtc->vht_supported) {
 520                 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
 521                                vhtc->cap);
 522 #define PFLAG(a, b)                                                     \
 523                 do {                                                    \
 524                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 525                                 p += scnprintf(p, sizeof(buf) + buf - p, \
 526                                                "\t\t%s\n", b);          \
 527                 } while (0)
 528
 529                 switch (vhtc->cap & 0x3) {
 530                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 531                         p += scnprintf(p, sizeof(buf) + buf - p,
 532                                        "\t\tMAX-MPDU-3895\n");
 533                         break;
 534                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 535                         p += scnprintf(p, sizeof(buf) + buf - p,
 536                                        "\t\tMAX-MPDU-7991\n");
 537                         break;
 538                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 539                         p += scnprintf(p, sizeof(buf) + buf - p,
 540                                        "\t\tMAX-MPDU-11454\n");
 541                         break;
 542                 default:
 543                         p += scnprintf(p, sizeof(buf) + buf - p,
 544                                        "\t\tMAX-MPDU-UNKNOWN\n");
 545                 }
 546                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 547                 case 0:
 548                         p += scnprintf(p, sizeof(buf) + buf - p,
 549                                        "\t\t80Mhz\n");
 550                         break;
 551                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 552                         p += scnprintf(p, sizeof(buf) + buf - p,
 553                                        "\t\t160Mhz\n");
 554                         break;
 555                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 556                         p += scnprintf(p, sizeof(buf) + buf - p,
 557                                        "\t\t80+80Mhz\n");
 558                         break;
 559                 default:
 560                         p += scnprintf(p, sizeof(buf) + buf - p,
 561                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 562                                        (vhtc->cap >> 2) & 0x3);
 563                 }
 564                 PFLAG(RXLDPC, "RXLDPC");
 565                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 566                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 567                 PFLAG(TXSTBC, "TXSTBC");
 568                 p += scnprintf(p, sizeof(buf) + buf - p,
 569                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 570                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 571                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 572                 p += scnprintf(p, sizeof(buf) + buf - p,
 573                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 574                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 575                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 576                 p += scnprintf(p, sizeof(buf) + buf - p,
 577                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 578                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 579                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 580                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 581                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 582                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 583                 PFLAG(HTC_VHT, "HTC-VHT");
 584                 p += scnprintf(p, sizeof(buf) + buf - p,
 585                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 586                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 587                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 588                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 589                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 590                 p += scnprintf(p, sizeof(buf) + buf - p,
 591                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 592                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 593                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 594                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 595
 596                 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
 597                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 598                 if (vhtc->vht_mcs.rx_highest)
 599                         p += scnprintf(p, sizeof(buf)+buf-p,
 600                                        "MCS RX highest: %d Mbps\n",
 601                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 602                 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
 603                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 604                 if (vhtc->vht_mcs.tx_highest)
 605                         p += scnprintf(p, sizeof(buf)+buf-p,
 606                                        "MCS TX highest: %d Mbps\n",
 607                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 608 #undef PFLAG
 609         }
 610
 611         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 612 }
 613 STA_OPS(vht_capa);
 614
 615 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 616                                 size_t count, loff_t *ppos)
 617 {
 618         char *buf, *p;
 619         size_t buf_sz = PAGE_SIZE;
 620         struct sta_info *sta = file->private_data;
 621         struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
 622         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 623         u8 ppe_size;
 624         u8 *cap;
 625         int i;
 626         ssize_t ret;
 627
 628         buf = kmalloc(buf_sz, GFP_KERNEL);
 629         if (!buf)
 630                 return -ENOMEM;
 631         p = buf;
 632
 633         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 634                        hec->has_he ? "" : "not ");
 635         if (!hec->has_he)
 636                 goto out;
 637
 638         cap = hec->he_cap_elem.mac_cap_info;
 639         p += scnprintf(p, buf_sz + buf - p,
 640                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 641                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 642
 643 #define PRINT(fmt, ...)                                                 \
 644         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 645                        ##__VA_ARGS__)
 646
 647 #define PFLAG(t, n, a, b)                                               \
 648         do {                                                            \
 649                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 650                         PRINT("%s", b);                                 \
 651         } while (0)
 652
 653 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 654         do {                                                            \
 655                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 656                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 657                 PRINT(fmt, (s << idx) + (m * idx));                     \
 658         } while (0)
 659
 660 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 661         do {                                                            \
 662                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 663                         PRINT("%s", b);                                 \
 664                         break;                                          \
 665                 }                                                       \
 666                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 667         } while (0)
 668
 669         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 670         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 671         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 672         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 673                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 674         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 675                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 676
 677         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 678                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 679         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 680                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 681         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 682                     "MULTI-TID-AGG-RX-QOS-%d");
 683
 684         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 685                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 686                 case 0:
 687                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 688                         break;
 689                 case 1:
 690                         PRINT("LINK-ADAPTATION-RESERVED");
 691                         break;
 692                 case 2:
 693                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 694                         break;
 695                 case 3:
 696                         PRINT("LINK-ADAPTATION-BOTH");
 697                         break;
 698                 }
 699         }
 700
 701         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 702         PFLAG(MAC, 2, TRS, "TRS");
 703         PFLAG(MAC, 2, BSR, "BSR");
 704         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 705         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 706         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 707         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 708
 709         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 710         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 711
 712         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 713         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
 714                 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
 715                 break;
 716         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
 717                 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
 718                 break;
 719         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
 720                 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
 721                 break;
 722         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
 723                 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
 724                 break;
 725         }
 726
 727         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 728         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 729         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 730
 731         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 732         PFLAG(MAC, 4, QTP, "QTP");
 733         PFLAG(MAC, 4, BQR, "BQR");
 734         PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
 735         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 736         PFLAG(MAC, 4, OPS, "OPS");
 737         PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
 738
 739         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 740
 741         PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
 742               "SUBCHAN-SELECVITE-TRANSMISSION");
 743         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 744         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 745         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 746         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 747         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 748
 749         cap = hec->he_cap_elem.phy_cap_info;
 750         p += scnprintf(p, buf_sz + buf - p,
 751                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 752                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 753                        cap[7], cap[8], cap[9], cap[10]);
 754
 755         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 756               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 757         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 758               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 759         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 760               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 761         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 762               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 763         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 764               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 765         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 766               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 767
 768         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 769         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 770                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 771                 break;
 772         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 773                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 774                 break;
 775         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 776                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 777                 break;
 778         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 779                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 780                 break;
 781         }
 782
 783         PFLAG(PHY, 1, DEVICE_CLASS_A,
 784               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 785         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 786               "LDPC-CODING-IN-PAYLOAD");
 787         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 788               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 789         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 790
 791         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 792         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 793         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 794         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 795         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 796         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 797         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 798
 799         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 800         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 801                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 802                 break;
 803         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 804                 PRINT("DCM-MAX-CONST-TX-BPSK");
 805                 break;
 806         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 807                 PRINT("DCM-MAX-CONST-TX-QPSK");
 808                 break;
 809         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 810                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 811                 break;
 812         }
 813
 814         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 815         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 816
 817         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 818         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 819                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 820                 break;
 821         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 822                 PRINT("DCM-MAX-CONST-RX-BPSK");
 823                 break;
 824         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 825                 PRINT("DCM-MAX-CONST-RX-QPSK");
 826                 break;
 827         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 828                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 829                 break;
 830         }
 831
 832         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 833         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 834         PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
 835               "RX-HE-MU-PPDU-FROM-NON-AP-STA");
 836         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 837
 838         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 839         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 840
 841         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 842                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 843         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 844                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 845
 846         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 847                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 848         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 849                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 850         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 851         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 852
 853         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 854         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 855         PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
 856         PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
 857         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 858         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 859         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 860               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 861         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 862
 863         PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
 864         PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
 865         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 866               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 867         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 868         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 869         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 870
 871         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 872               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 873         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 874               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 875         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 876         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 877         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 878               "HE-ER-SU-1XLTF-AND-08-US-GI");
 879         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 880               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 881
 882         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 883         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 884                 PRINT("DCM-MAX-RU-242");
 885                 break;
 886         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 887                 PRINT("DCM-MAX-RU-484");
 888                 break;
 889         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 890                 PRINT("DCM-MAX-RU-996");
 891                 break;
 892         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 893                 PRINT("DCM-MAX-RU-2x996");
 894                 break;
 895         }
 896
 897         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 898               "LONGER-THAN-16-SIGB-OFDM-SYM");
 899         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 900               "NON-TRIGGERED-CQI-FEEDBACK");
 901         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 902               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 903         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 904               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 905         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 906               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 907         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 908               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 909
 910         switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
 911         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
 912                 PRINT("NOMINAL-PACKET-PADDING-0US");
 913                 break;
 914         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
 915                 PRINT("NOMINAL-PACKET-PADDING-8US");
 916                 break;
 917         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
 918                 PRINT("NOMINAL-PACKET-PADDING-16US");
 919                 break;
 920         }
 921
 922 #undef PFLAG_RANGE_DEFAULT
 923 #undef PFLAG_RANGE
 924 #undef PFLAG
 925
 926 #define PRINT_NSS_SUPP(f, n)                                            \
 927         do {                                                            \
 928                 int _i;                                                 \
 929                 u16 v = le16_to_cpu(nss->f);                            \
 930                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 931                 for (_i = 0; _i < 8; _i += 2) {                         \
 932                         switch ((v >> _i) & 0x3) {                      \
 933                         case 0:                                         \
 934                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 935                                 break;                                  \
 936                         case 1:                                         \
 937                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 938                                 break;                                  \
 939                         case 2:                                         \
 940                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 941                                 break;                                  \
 942                         case 3:                                         \
 943                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 944                                 break;                                  \
 945                         }                                               \
 946                 }                                                       \
 947         } while (0)
 948
 949         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 950         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 951
 952         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 953                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 954                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 955         }
 956
 957         if (cap[0] &
 958             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 959                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 960                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 961         }
 962
 963 #undef PRINT_NSS_SUPP
 964 #undef PRINT
 965
 966         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 967                 goto out;
 968
 969         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
 970                        hec->ppe_thres[0]);
 971
 972         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
 973         for (i = 1; i < ppe_size; i++) {
 974                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
 975                                hec->ppe_thres[i]);
 976         }
 977         p += scnprintf(p, buf_sz + buf - p, "\n");
 978
 979 out:
 980         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 981         kfree(buf);
 982         return ret;
 983 }
 984 STA_OPS(he_capa);
 985
 986 #define DEBUGFS_ADD(name) \
 987         debugfs_create_file(#name, 0400, \
 988                 sta->debugfs_dir, sta, &sta_ ##name## _ops);
 989
 990 #define DEBUGFS_ADD_COUNTER(name, field)                                \
 991         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
 992
 993 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 994 {
 995         struct ieee80211_local *local = sta->local;
 996         struct ieee80211_sub_if_data *sdata = sta->sdata;
 997         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 998         u8 mac[3*ETH_ALEN];
 999
1000         if (!stations_dir)
1001                 return;
1002
1003         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1004
1005         /*
1006          * This might fail due to a race condition:
1007          * When mac80211 unlinks a station, the debugfs entries
1008          * remain, but it is already possible to link a new
1009          * station with the same address which triggers adding
1010          * it to debugfs; therefore, if the old station isn't
1011          * destroyed quickly enough the old station's debugfs
1012          * dir might still be around.
1013          */
1014         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1015
1016         DEBUGFS_ADD(flags);
1017         DEBUGFS_ADD(aid);
1018         DEBUGFS_ADD(num_ps_buf_frames);
1019         DEBUGFS_ADD(last_seq_ctrl);
1020         DEBUGFS_ADD(agg_status);
1021         DEBUGFS_ADD(ht_capa);
1022         DEBUGFS_ADD(vht_capa);
1023         DEBUGFS_ADD(he_capa);
1024
1025         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1026         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1027         DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1028
1029         if (local->ops->wake_tx_queue) {
1030                 DEBUGFS_ADD(aqm);
1031                 DEBUGFS_ADD(airtime);
1032         }
1033
1034         if (wiphy_ext_feature_isset(local->hw.wiphy,
1035                                     NL80211_EXT_FEATURE_AQL))
1036                 DEBUGFS_ADD(aql);
1037
1038         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1039                            &sta->driver_buffered_tids);
1040
1041         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1042 }
1043
1044 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1045 {
1046         debugfs_remove_recursive(sta->debugfs_dir);
1047         sta->debugfs_dir = NULL;
1048 }