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 - 2019 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 #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)\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         }
 185
 186         rcu_read_unlock();
 187         spin_unlock_bh(&local->fq.lock);
 188
 189         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 190         kfree(buf);
 191         return rv;
 192 }
 193 STA_OPS(aqm);
 194
 195 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
 196                                 size_t count, loff_t *ppos)
 197 {
 198         struct sta_info *sta = file->private_data;
 199         struct ieee80211_local *local = sta->sdata->local;
 200         size_t bufsz = 400;
 201         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 202         u64 rx_airtime = 0, tx_airtime = 0;
 203         s64 deficit[IEEE80211_NUM_ACS];
 204         ssize_t rv;
 205         int ac;
 206
 207         if (!buf)
 208                 return -ENOMEM;
 209
 210         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 211                 spin_lock_bh(&local->active_txq_lock[ac]);
 212                 rx_airtime += sta->airtime[ac].rx_airtime;
 213                 tx_airtime += sta->airtime[ac].tx_airtime;
 214                 deficit[ac] = sta->airtime[ac].deficit;
 215                 spin_unlock_bh(&local->active_txq_lock[ac]);
 216         }
 217
 218         p += scnprintf(p, bufsz + buf - p,
 219                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 220                 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
 221                 rx_airtime, tx_airtime, sta->airtime_weight,
 222                 deficit[0], deficit[1], deficit[2], deficit[3]);
 223
 224         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 225         kfree(buf);
 226         return rv;
 227 }
 228
 229 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 230                                  size_t count, loff_t *ppos)
 231 {
 232         struct sta_info *sta = file->private_data;
 233         struct ieee80211_local *local = sta->sdata->local;
 234         int ac;
 235
 236         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 237                 spin_lock_bh(&local->active_txq_lock[ac]);
 238                 sta->airtime[ac].rx_airtime = 0;
 239                 sta->airtime[ac].tx_airtime = 0;
 240                 sta->airtime[ac].deficit = sta->airtime_weight;
 241                 spin_unlock_bh(&local->active_txq_lock[ac]);
 242         }
 243
 244         return count;
 245 }
 246 STA_OPS_RW(airtime);
 247
 248 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
 249                                 size_t count, loff_t *ppos)
 250 {
 251         struct sta_info *sta = file->private_data;
 252         struct ieee80211_local *local = sta->sdata->local;
 253         size_t bufsz = 400;
 254         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 255         u32 q_depth[IEEE80211_NUM_ACS];
 256         u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 257         ssize_t rv;
 258         int ac;
 259
 260         if (!buf)
 261                 return -ENOMEM;
 262
 263         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 264                 spin_lock_bh(&local->active_txq_lock[ac]);
 265                 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 266                 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 267                 spin_unlock_bh(&local->active_txq_lock[ac]);
 268                 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 269         }
 270
 271         p += scnprintf(p, bufsz + buf - p,
 272                 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 273                 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 274                 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 275                 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 276                 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]),
 277
 278         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 279         kfree(buf);
 280         return rv;
 281 }
 282
 283 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
 284                                  size_t count, loff_t *ppos)
 285 {
 286         struct sta_info *sta = file->private_data;
 287         u32 ac, q_limit_l, q_limit_h;
 288         char _buf[100] = {}, *buf = _buf;
 289
 290         if (count > sizeof(_buf))
 291                 return -EINVAL;
 292
 293         if (copy_from_user(buf, userbuf, count))
 294                 return -EFAULT;
 295
 296         buf[sizeof(_buf) - 1] = '\0';
 297         if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 298             != 3)
 299                 return -EINVAL;
 300
 301         if (ac >= IEEE80211_NUM_ACS)
 302                 return -EINVAL;
 303
 304         sta->airtime[ac].aql_limit_low = q_limit_l;
 305         sta->airtime[ac].aql_limit_high = q_limit_h;
 306
 307         return count;
 308 }
 309 STA_OPS_RW(aql);
 310
 311
 312 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 313                                         size_t count, loff_t *ppos)
 314 {
 315         char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 316         int i;
 317         struct sta_info *sta = file->private_data;
 318         struct tid_ampdu_rx *tid_rx;
 319         struct tid_ampdu_tx *tid_tx;
 320
 321         rcu_read_lock();
 322
 323         p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 324                         sta->ampdu_mlme.dialog_token_allocator + 1);
 325         p += scnprintf(p, sizeof(buf) + buf - p,
 326                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 327
 328         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 329                 bool tid_rx_valid;
 330
 331                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 332                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 333                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 334
 335                 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 336                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
 337                                tid_rx_valid);
 338                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 339                                tid_rx_valid ?
 340                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 341                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 342                                 tid_rx ? tid_rx->ssn : 0);
 343
 344                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
 345                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 346                                 tid_tx ? tid_tx->dialog_token : 0);
 347                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
 348                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 349                 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
 350         }
 351         rcu_read_unlock();
 352
 353         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 354 }
 355
 356 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 357                                     size_t count, loff_t *ppos)
 358 {
 359         char _buf[25] = {}, *buf = _buf;
 360         struct sta_info *sta = file->private_data;
 361         bool start, tx;
 362         unsigned long tid;
 363         char *pos;
 364         int ret, timeout = 5000;
 365
 366         if (count > sizeof(_buf))
 367                 return -EINVAL;
 368
 369         if (copy_from_user(buf, userbuf, count))
 370                 return -EFAULT;
 371
 372         buf[sizeof(_buf) - 1] = '\0';
 373         pos = buf;
 374         buf = strsep(&pos, " ");
 375         if (!buf)
 376                 return -EINVAL;
 377
 378         if (!strcmp(buf, "tx"))
 379                 tx = true;
 380         else if (!strcmp(buf, "rx"))
 381                 tx = false;
 382         else
 383                 return -EINVAL;
 384
 385         buf = strsep(&pos, " ");
 386         if (!buf)
 387                 return -EINVAL;
 388         if (!strcmp(buf, "start")) {
 389                 start = true;
 390                 if (!tx)
 391                         return -EINVAL;
 392         } else if (!strcmp(buf, "stop")) {
 393                 start = false;
 394         } else {
 395                 return -EINVAL;
 396         }
 397
 398         buf = strsep(&pos, " ");
 399         if (!buf)
 400                 return -EINVAL;
 401         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 402                 buf = strsep(&pos, " ");
 403                 if (!buf || !tx || !start)
 404                         return -EINVAL;
 405         }
 406
 407         ret = kstrtoul(buf, 0, &tid);
 408         if (ret || tid >= IEEE80211_NUM_TIDS)
 409                 return -EINVAL;
 410
 411         if (tx) {
 412                 if (start)
 413                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 414                                                             timeout);
 415                 else
 416                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 417         } else {
 418                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 419                                                3, true);
 420                 ret = 0;
 421         }
 422
 423         return ret ?: count;
 424 }
 425 STA_OPS_RW(agg_status);
 426
 427 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 428                                 size_t count, loff_t *ppos)
 429 {
 430 #define PRINT_HT_CAP(_cond, _str) \
 431         do { \
 432         if (_cond) \
 433                         p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
 434         } while (0)
 435         char buf[512], *p = buf;
 436         int i;
 437         struct sta_info *sta = file->private_data;
 438         struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
 439
 440         p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 441                         htc->ht_supported ? "" : "not ");
 442         if (htc->ht_supported) {
 443                 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 444
 445                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 446                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 447                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 448
 449                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 450                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 451                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 452
 453                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 454                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 455                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 456                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 457
 458                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 459                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 460                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 461                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 462
 463                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 464
 465                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 466                              "3839 bytes");
 467                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 468                              "7935 bytes");
 469
 470                 /*
 471                  * For beacons and probe response this would mean the BSS
 472                  * does or does not allow the usage of DSSS/CCK HT40.
 473                  * Otherwise it means the STA does or does not use
 474                  * DSSS/CCK HT40.
 475                  */
 476                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 477                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 478
 479                 /* BIT(13) is reserved */
 480
 481                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 482
 483                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 484
 485                 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 486                                 htc->ampdu_factor, htc->ampdu_density);
 487                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
 488
 489                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 490                         p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 491                                         htc->mcs.rx_mask[i]);
 492                 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 493
 494                 /* If not set this is meaningless */
 495                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 496                         p += scnprintf(p, sizeof(buf)+buf-p,
 497                                        "MCS rx highest: %d Mbps\n",
 498                                        le16_to_cpu(htc->mcs.rx_highest));
 499                 }
 500
 501                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 502                                 htc->mcs.tx_params);
 503         }
 504
 505         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 506 }
 507 STA_OPS(ht_capa);
 508
 509 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 510                                  size_t count, loff_t *ppos)
 511 {
 512         char buf[512], *p = buf;
 513         struct sta_info *sta = file->private_data;
 514         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
 515
 516         p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
 517                         vhtc->vht_supported ? "" : "not ");
 518         if (vhtc->vht_supported) {
 519                 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
 520                                vhtc->cap);
 521 #define PFLAG(a, b)                                                     \
 522                 do {                                                    \
 523                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 524                                 p += scnprintf(p, sizeof(buf) + buf - p, \
 525                                                "\t\t%s\n", b);          \
 526                 } while (0)
 527
 528                 switch (vhtc->cap & 0x3) {
 529                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 530                         p += scnprintf(p, sizeof(buf) + buf - p,
 531                                        "\t\tMAX-MPDU-3895\n");
 532                         break;
 533                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 534                         p += scnprintf(p, sizeof(buf) + buf - p,
 535                                        "\t\tMAX-MPDU-7991\n");
 536                         break;
 537                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 538                         p += scnprintf(p, sizeof(buf) + buf - p,
 539                                        "\t\tMAX-MPDU-11454\n");
 540                         break;
 541                 default:
 542                         p += scnprintf(p, sizeof(buf) + buf - p,
 543                                        "\t\tMAX-MPDU-UNKNOWN\n");
 544                 }
 545                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 546                 case 0:
 547                         p += scnprintf(p, sizeof(buf) + buf - p,
 548                                        "\t\t80Mhz\n");
 549                         break;
 550                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 551                         p += scnprintf(p, sizeof(buf) + buf - p,
 552                                        "\t\t160Mhz\n");
 553                         break;
 554                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 555                         p += scnprintf(p, sizeof(buf) + buf - p,
 556                                        "\t\t80+80Mhz\n");
 557                         break;
 558                 default:
 559                         p += scnprintf(p, sizeof(buf) + buf - p,
 560                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 561                                        (vhtc->cap >> 2) & 0x3);
 562                 }
 563                 PFLAG(RXLDPC, "RXLDPC");
 564                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 565                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 566                 PFLAG(TXSTBC, "TXSTBC");
 567                 p += scnprintf(p, sizeof(buf) + buf - p,
 568                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 569                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 570                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 571                 p += scnprintf(p, sizeof(buf) + buf - p,
 572                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 573                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 574                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 575                 p += scnprintf(p, sizeof(buf) + buf - p,
 576                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 577                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 578                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 579                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 580                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 581                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 582                 PFLAG(HTC_VHT, "HTC-VHT");
 583                 p += scnprintf(p, sizeof(buf) + buf - p,
 584                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 585                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 586                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 587                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 588                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 589                 p += scnprintf(p, sizeof(buf) + buf - p,
 590                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 591                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 592                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 593                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 594
 595                 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
 596                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 597                 if (vhtc->vht_mcs.rx_highest)
 598                         p += scnprintf(p, sizeof(buf)+buf-p,
 599                                        "MCS RX highest: %d Mbps\n",
 600                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 601                 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
 602                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 603                 if (vhtc->vht_mcs.tx_highest)
 604                         p += scnprintf(p, sizeof(buf)+buf-p,
 605                                        "MCS TX highest: %d Mbps\n",
 606                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 607 #undef PFLAG
 608         }
 609
 610         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 611 }
 612 STA_OPS(vht_capa);
 613
 614 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 615                                 size_t count, loff_t *ppos)
 616 {
 617         char *buf, *p;
 618         size_t buf_sz = PAGE_SIZE;
 619         struct sta_info *sta = file->private_data;
 620         struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
 621         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 622         u8 ppe_size;
 623         u8 *cap;
 624         int i;
 625         ssize_t ret;
 626
 627         buf = kmalloc(buf_sz, GFP_KERNEL);
 628         if (!buf)
 629                 return -ENOMEM;
 630         p = buf;
 631
 632         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 633                        hec->has_he ? "" : "not ");
 634         if (!hec->has_he)
 635                 goto out;
 636
 637         cap = hec->he_cap_elem.mac_cap_info;
 638         p += scnprintf(p, buf_sz + buf - p,
 639                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 640                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 641
 642 #define PRINT(fmt, ...)                                                 \
 643         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 644                        ##__VA_ARGS__)
 645
 646 #define PFLAG(t, n, a, b)                                               \
 647         do {                                                            \
 648                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 649                         PRINT("%s", b);                                 \
 650         } while (0)
 651
 652 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 653         do {                                                            \
 654                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 655                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 656                 PRINT(fmt, (s << idx) + (m * idx));                     \
 657         } while (0)
 658
 659 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 660         do {                                                            \
 661                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 662                         PRINT("%s", b);                                 \
 663                         break;                                          \
 664                 }                                                       \
 665                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 666         } while (0)
 667
 668         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 669         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 670         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 671         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 672                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 673         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 674                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 675
 676         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 677                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 678         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 679                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 680         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 681                     "MULTI-TID-AGG-RX-QOS-%d");
 682
 683         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 684                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 685                 case 0:
 686                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 687                         break;
 688                 case 1:
 689                         PRINT("LINK-ADAPTATION-RESERVED");
 690                         break;
 691                 case 2:
 692                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 693                         break;
 694                 case 3:
 695                         PRINT("LINK-ADAPTATION-BOTH");
 696                         break;
 697                 }
 698         }
 699
 700         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 701         PFLAG(MAC, 2, TRS, "TRS");
 702         PFLAG(MAC, 2, BSR, "BSR");
 703         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 704         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 705         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 706         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 707
 708         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 709         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 710
 711         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 712         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
 713                 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
 714                 break;
 715         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
 716                 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
 717                 break;
 718         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
 719                 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
 720                 break;
 721         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
 722                 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
 723                 break;
 724         }
 725
 726         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 727         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 728         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 729
 730         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 731         PFLAG(MAC, 4, QTP, "QTP");
 732         PFLAG(MAC, 4, BQR, "BQR");
 733         PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
 734         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 735         PFLAG(MAC, 4, OPS, "OPS");
 736         PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
 737
 738         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 739
 740         PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
 741               "SUBCHAN-SELECVITE-TRANSMISSION");
 742         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 743         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 744         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 745         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 746         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 747
 748         cap = hec->he_cap_elem.phy_cap_info;
 749         p += scnprintf(p, buf_sz + buf - p,
 750                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 751                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 752                        cap[7], cap[8], cap[9], cap[10]);
 753
 754         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 755               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 756         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 757               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 758         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 759               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 760         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 761               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 762         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 763               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 764         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 765               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 766
 767         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 768         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 769                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 770                 break;
 771         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 772                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 773                 break;
 774         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 775                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 776                 break;
 777         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 778                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 779                 break;
 780         }
 781
 782         PFLAG(PHY, 1, DEVICE_CLASS_A,
 783               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 784         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 785               "LDPC-CODING-IN-PAYLOAD");
 786         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 787               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 788         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 789
 790         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 791         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 792         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 793         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 794         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 795         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 796         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 797
 798         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 799         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 800                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 801                 break;
 802         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 803                 PRINT("DCM-MAX-CONST-TX-BPSK");
 804                 break;
 805         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 806                 PRINT("DCM-MAX-CONST-TX-QPSK");
 807                 break;
 808         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 809                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 810                 break;
 811         }
 812
 813         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 814         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 815
 816         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 817         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 818                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 819                 break;
 820         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 821                 PRINT("DCM-MAX-CONST-RX-BPSK");
 822                 break;
 823         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 824                 PRINT("DCM-MAX-CONST-RX-QPSK");
 825                 break;
 826         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 827                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 828                 break;
 829         }
 830
 831         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 832         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 833         PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
 834               "RX-HE-MU-PPDU-FROM-NON-AP-STA");
 835         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 836
 837         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 838         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 839
 840         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 841                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 842         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 843                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 844
 845         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 846                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 847         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 848                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 849         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 850         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 851
 852         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 853         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 854         PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
 855         PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
 856         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 857         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 858         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 859               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 860         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 861
 862         PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
 863         PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
 864         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 865               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 866         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 867         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 868         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 869
 870         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 871               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 872         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 873               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 874         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 875         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 876         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 877               "HE-ER-SU-1XLTF-AND-08-US-GI");
 878         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 879               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 880
 881         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 882         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 883                 PRINT("DCM-MAX-RU-242");
 884                 break;
 885         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 886                 PRINT("DCM-MAX-RU-484");
 887                 break;
 888         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 889                 PRINT("DCM-MAX-RU-996");
 890                 break;
 891         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 892                 PRINT("DCM-MAX-RU-2x996");
 893                 break;
 894         }
 895
 896         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 897               "LONGER-THAN-16-SIGB-OFDM-SYM");
 898         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 899               "NON-TRIGGERED-CQI-FEEDBACK");
 900         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 901               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 902         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 903               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 904         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 905               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 906         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 907               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 908
 909         switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
 910         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
 911                 PRINT("NOMINAL-PACKET-PADDING-0US");
 912                 break;
 913         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
 914                 PRINT("NOMINAL-PACKET-PADDING-8US");
 915                 break;
 916         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
 917                 PRINT("NOMINAL-PACKET-PADDING-16US");
 918                 break;
 919         }
 920
 921 #undef PFLAG_RANGE_DEFAULT
 922 #undef PFLAG_RANGE
 923 #undef PFLAG
 924
 925 #define PRINT_NSS_SUPP(f, n)                                            \
 926         do {                                                            \
 927                 int _i;                                                 \
 928                 u16 v = le16_to_cpu(nss->f);                            \
 929                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 930                 for (_i = 0; _i < 8; _i += 2) {                         \
 931                         switch ((v >> _i) & 0x3) {                      \
 932                         case 0:                                         \
 933                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 934                                 break;                                  \
 935                         case 1:                                         \
 936                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 937                                 break;                                  \
 938                         case 2:                                         \
 939                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 940                                 break;                                  \
 941                         case 3:                                         \
 942                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 943                                 break;                                  \
 944                         }                                               \
 945                 }                                                       \
 946         } while (0)
 947
 948         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 949         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 950
 951         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 952                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 953                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 954         }
 955
 956         if (cap[0] &
 957             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 958                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 959                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 960         }
 961
 962 #undef PRINT_NSS_SUPP
 963 #undef PRINT
 964
 965         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 966                 goto out;
 967
 968         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
 969                        hec->ppe_thres[0]);
 970
 971         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
 972         for (i = 1; i < ppe_size; i++) {
 973                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
 974                                hec->ppe_thres[i]);
 975         }
 976         p += scnprintf(p, buf_sz + buf - p, "\n");
 977
 978 out:
 979         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 980         kfree(buf);
 981         return ret;
 982 }
 983 STA_OPS(he_capa);
 984
 985 #define DEBUGFS_ADD(name) \
 986         debugfs_create_file(#name, 0400, \
 987                 sta->debugfs_dir, sta, &sta_ ##name## _ops);
 988
 989 #define DEBUGFS_ADD_COUNTER(name, field)                                \
 990         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
 991
 992 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 993 {
 994         struct ieee80211_local *local = sta->local;
 995         struct ieee80211_sub_if_data *sdata = sta->sdata;
 996         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 997         u8 mac[3*ETH_ALEN];
 998
 999         if (!stations_dir)
1000                 return;
1001
1002         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1003
1004         /*
1005          * This might fail due to a race condition:
1006          * When mac80211 unlinks a station, the debugfs entries
1007          * remain, but it is already possible to link a new
1008          * station with the same address which triggers adding
1009          * it to debugfs; therefore, if the old station isn't
1010          * destroyed quickly enough the old station's debugfs
1011          * dir might still be around.
1012          */
1013         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1014
1015         DEBUGFS_ADD(flags);
1016         DEBUGFS_ADD(aid);
1017         DEBUGFS_ADD(num_ps_buf_frames);
1018         DEBUGFS_ADD(last_seq_ctrl);
1019         DEBUGFS_ADD(agg_status);
1020         DEBUGFS_ADD(ht_capa);
1021         DEBUGFS_ADD(vht_capa);
1022         DEBUGFS_ADD(he_capa);
1023
1024         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1025         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1026         DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1027
1028         if (local->ops->wake_tx_queue)
1029                 DEBUGFS_ADD(aqm);
1030
1031         if (wiphy_ext_feature_isset(local->hw.wiphy,
1032                                     NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
1033                 DEBUGFS_ADD(airtime);
1034
1035         if (wiphy_ext_feature_isset(local->hw.wiphy,
1036                                     NL80211_EXT_FEATURE_AQL))
1037                 DEBUGFS_ADD(aql);
1038
1039         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1040                            &sta->driver_buffered_tids);
1041
1042         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1043 }
1044
1045 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1046 {
1047         debugfs_remove_recursive(sta->debugfs_dir);
1048         sta->debugfs_dir = NULL;
1049 }