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         u32 q_depth[IEEE80211_NUM_ACS];
 205         u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 206         ssize_t rv;
 207         int ac;
 208
 209         if (!buf)
 210                 return -ENOMEM;
 211
 212         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 213                 spin_lock_bh(&local->active_txq_lock[ac]);
 214                 rx_airtime += sta->airtime[ac].rx_airtime;
 215                 tx_airtime += sta->airtime[ac].tx_airtime;
 216                 deficit[ac] = sta->airtime[ac].deficit;
 217                 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 218                 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 219                 spin_unlock_bh(&local->active_txq_lock[ac]);
 220                 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 221         }
 222
 223         p += scnprintf(p, bufsz + buf - p,
 224                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 225                 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n"
 226                 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 227                 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 228                 rx_airtime, tx_airtime, sta->airtime_weight,
 229                 deficit[0], deficit[1], deficit[2], deficit[3],
 230                 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 231                 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 232                 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]),
 233
 234         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 235         kfree(buf);
 236         return rv;
 237 }
 238
 239 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 240                                  size_t count, loff_t *ppos)
 241 {
 242         struct sta_info *sta = file->private_data;
 243         struct ieee80211_local *local = sta->sdata->local;
 244         u32 ac, q_limit_l, q_limit_h;
 245         char _buf[100] = {}, *buf = _buf;
 246
 247         if (count > sizeof(_buf))
 248                 return -EINVAL;
 249
 250         if (copy_from_user(buf, userbuf, count))
 251                 return -EFAULT;
 252
 253         buf[sizeof(_buf) - 1] = '\0';
 254         if (sscanf(buf, "queue limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 255             != 3)
 256                 return -EINVAL;
 257
 258         if (ac >= IEEE80211_NUM_ACS)
 259                 return -EINVAL;
 260
 261         sta->airtime[ac].aql_limit_low = q_limit_l;
 262         sta->airtime[ac].aql_limit_high = q_limit_h;
 263
 264         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 265                 spin_lock_bh(&local->active_txq_lock[ac]);
 266                 sta->airtime[ac].rx_airtime = 0;
 267                 sta->airtime[ac].tx_airtime = 0;
 268                 sta->airtime[ac].deficit = sta->airtime_weight;
 269                 spin_unlock_bh(&local->active_txq_lock[ac]);
 270         }
 271
 272         return count;
 273 }
 274 STA_OPS_RW(airtime);
 275
 276 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 277                                         size_t count, loff_t *ppos)
 278 {
 279         char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 280         int i;
 281         struct sta_info *sta = file->private_data;
 282         struct tid_ampdu_rx *tid_rx;
 283         struct tid_ampdu_tx *tid_tx;
 284
 285         rcu_read_lock();
 286
 287         p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 288                         sta->ampdu_mlme.dialog_token_allocator + 1);
 289         p += scnprintf(p, sizeof(buf) + buf - p,
 290                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 291
 292         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 293                 bool tid_rx_valid;
 294
 295                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 296                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 297                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 298
 299                 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 300                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
 301                                tid_rx_valid);
 302                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 303                                tid_rx_valid ?
 304                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 305                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 306                                 tid_rx ? tid_rx->ssn : 0);
 307
 308                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
 309                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 310                                 tid_tx ? tid_tx->dialog_token : 0);
 311                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
 312                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 313                 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
 314         }
 315         rcu_read_unlock();
 316
 317         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 318 }
 319
 320 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 321                                     size_t count, loff_t *ppos)
 322 {
 323         char _buf[25] = {}, *buf = _buf;
 324         struct sta_info *sta = file->private_data;
 325         bool start, tx;
 326         unsigned long tid;
 327         char *pos;
 328         int ret, timeout = 5000;
 329
 330         if (count > sizeof(_buf))
 331                 return -EINVAL;
 332
 333         if (copy_from_user(buf, userbuf, count))
 334                 return -EFAULT;
 335
 336         buf[sizeof(_buf) - 1] = '\0';
 337         pos = buf;
 338         buf = strsep(&pos, " ");
 339         if (!buf)
 340                 return -EINVAL;
 341
 342         if (!strcmp(buf, "tx"))
 343                 tx = true;
 344         else if (!strcmp(buf, "rx"))
 345                 tx = false;
 346         else
 347                 return -EINVAL;
 348
 349         buf = strsep(&pos, " ");
 350         if (!buf)
 351                 return -EINVAL;
 352         if (!strcmp(buf, "start")) {
 353                 start = true;
 354                 if (!tx)
 355                         return -EINVAL;
 356         } else if (!strcmp(buf, "stop")) {
 357                 start = false;
 358         } else {
 359                 return -EINVAL;
 360         }
 361
 362         buf = strsep(&pos, " ");
 363         if (!buf)
 364                 return -EINVAL;
 365         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 366                 buf = strsep(&pos, " ");
 367                 if (!buf || !tx || !start)
 368                         return -EINVAL;
 369         }
 370
 371         ret = kstrtoul(buf, 0, &tid);
 372         if (ret || tid >= IEEE80211_NUM_TIDS)
 373                 return -EINVAL;
 374
 375         if (tx) {
 376                 if (start)
 377                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 378                                                             timeout);
 379                 else
 380                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 381         } else {
 382                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 383                                                3, true);
 384                 ret = 0;
 385         }
 386
 387         return ret ?: count;
 388 }
 389 STA_OPS_RW(agg_status);
 390
 391 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 392                                 size_t count, loff_t *ppos)
 393 {
 394 #define PRINT_HT_CAP(_cond, _str) \
 395         do { \
 396         if (_cond) \
 397                         p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
 398         } while (0)
 399         char buf[512], *p = buf;
 400         int i;
 401         struct sta_info *sta = file->private_data;
 402         struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
 403
 404         p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 405                         htc->ht_supported ? "" : "not ");
 406         if (htc->ht_supported) {
 407                 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 408
 409                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 410                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 411                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 412
 413                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 414                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 415                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 416
 417                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 418                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 419                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 420                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 421
 422                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 423                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 424                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 425                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 426
 427                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 428
 429                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 430                              "3839 bytes");
 431                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 432                              "7935 bytes");
 433
 434                 /*
 435                  * For beacons and probe response this would mean the BSS
 436                  * does or does not allow the usage of DSSS/CCK HT40.
 437                  * Otherwise it means the STA does or does not use
 438                  * DSSS/CCK HT40.
 439                  */
 440                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 441                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 442
 443                 /* BIT(13) is reserved */
 444
 445                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 446
 447                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 448
 449                 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 450                                 htc->ampdu_factor, htc->ampdu_density);
 451                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
 452
 453                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 454                         p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 455                                         htc->mcs.rx_mask[i]);
 456                 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 457
 458                 /* If not set this is meaningless */
 459                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 460                         p += scnprintf(p, sizeof(buf)+buf-p,
 461                                        "MCS rx highest: %d Mbps\n",
 462                                        le16_to_cpu(htc->mcs.rx_highest));
 463                 }
 464
 465                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 466                                 htc->mcs.tx_params);
 467         }
 468
 469         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 470 }
 471 STA_OPS(ht_capa);
 472
 473 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 474                                  size_t count, loff_t *ppos)
 475 {
 476         char buf[512], *p = buf;
 477         struct sta_info *sta = file->private_data;
 478         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
 479
 480         p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
 481                         vhtc->vht_supported ? "" : "not ");
 482         if (vhtc->vht_supported) {
 483                 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
 484                                vhtc->cap);
 485 #define PFLAG(a, b)                                                     \
 486                 do {                                                    \
 487                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 488                                 p += scnprintf(p, sizeof(buf) + buf - p, \
 489                                                "\t\t%s\n", b);          \
 490                 } while (0)
 491
 492                 switch (vhtc->cap & 0x3) {
 493                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 494                         p += scnprintf(p, sizeof(buf) + buf - p,
 495                                        "\t\tMAX-MPDU-3895\n");
 496                         break;
 497                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 498                         p += scnprintf(p, sizeof(buf) + buf - p,
 499                                        "\t\tMAX-MPDU-7991\n");
 500                         break;
 501                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 502                         p += scnprintf(p, sizeof(buf) + buf - p,
 503                                        "\t\tMAX-MPDU-11454\n");
 504                         break;
 505                 default:
 506                         p += scnprintf(p, sizeof(buf) + buf - p,
 507                                        "\t\tMAX-MPDU-UNKNOWN\n");
 508                 }
 509                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 510                 case 0:
 511                         p += scnprintf(p, sizeof(buf) + buf - p,
 512                                        "\t\t80Mhz\n");
 513                         break;
 514                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 515                         p += scnprintf(p, sizeof(buf) + buf - p,
 516                                        "\t\t160Mhz\n");
 517                         break;
 518                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 519                         p += scnprintf(p, sizeof(buf) + buf - p,
 520                                        "\t\t80+80Mhz\n");
 521                         break;
 522                 default:
 523                         p += scnprintf(p, sizeof(buf) + buf - p,
 524                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 525                                        (vhtc->cap >> 2) & 0x3);
 526                 }
 527                 PFLAG(RXLDPC, "RXLDPC");
 528                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 529                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 530                 PFLAG(TXSTBC, "TXSTBC");
 531                 p += scnprintf(p, sizeof(buf) + buf - p,
 532                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 533                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 534                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 535                 p += scnprintf(p, sizeof(buf) + buf - p,
 536                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 537                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 538                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 539                 p += scnprintf(p, sizeof(buf) + buf - p,
 540                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 541                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 542                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 543                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 544                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 545                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 546                 PFLAG(HTC_VHT, "HTC-VHT");
 547                 p += scnprintf(p, sizeof(buf) + buf - p,
 548                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 549                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 550                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 551                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 552                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 553                 p += scnprintf(p, sizeof(buf) + buf - p,
 554                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 555                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 556                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 557                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 558
 559                 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
 560                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 561                 if (vhtc->vht_mcs.rx_highest)
 562                         p += scnprintf(p, sizeof(buf)+buf-p,
 563                                        "MCS RX highest: %d Mbps\n",
 564                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 565                 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
 566                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 567                 if (vhtc->vht_mcs.tx_highest)
 568                         p += scnprintf(p, sizeof(buf)+buf-p,
 569                                        "MCS TX highest: %d Mbps\n",
 570                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 571 #undef PFLAG
 572         }
 573
 574         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 575 }
 576 STA_OPS(vht_capa);
 577
 578 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 579                                 size_t count, loff_t *ppos)
 580 {
 581         char *buf, *p;
 582         size_t buf_sz = PAGE_SIZE;
 583         struct sta_info *sta = file->private_data;
 584         struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
 585         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 586         u8 ppe_size;
 587         u8 *cap;
 588         int i;
 589         ssize_t ret;
 590
 591         buf = kmalloc(buf_sz, GFP_KERNEL);
 592         if (!buf)
 593                 return -ENOMEM;
 594         p = buf;
 595
 596         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 597                        hec->has_he ? "" : "not ");
 598         if (!hec->has_he)
 599                 goto out;
 600
 601         cap = hec->he_cap_elem.mac_cap_info;
 602         p += scnprintf(p, buf_sz + buf - p,
 603                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 604                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 605
 606 #define PRINT(fmt, ...)                                                 \
 607         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 608                        ##__VA_ARGS__)
 609
 610 #define PFLAG(t, n, a, b)                                               \
 611         do {                                                            \
 612                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 613                         PRINT("%s", b);                                 \
 614         } while (0)
 615
 616 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 617         do {                                                            \
 618                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 619                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 620                 PRINT(fmt, (s << idx) + (m * idx));                     \
 621         } while (0)
 622
 623 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 624         do {                                                            \
 625                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 626                         PRINT("%s", b);                                 \
 627                         break;                                          \
 628                 }                                                       \
 629                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 630         } while (0)
 631
 632         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 633         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 634         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 635         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 636                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 637         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 638                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 639
 640         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 641                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 642         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 643                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 644         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 645                     "MULTI-TID-AGG-RX-QOS-%d");
 646
 647         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 648                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 649                 case 0:
 650                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 651                         break;
 652                 case 1:
 653                         PRINT("LINK-ADAPTATION-RESERVED");
 654                         break;
 655                 case 2:
 656                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 657                         break;
 658                 case 3:
 659                         PRINT("LINK-ADAPTATION-BOTH");
 660                         break;
 661                 }
 662         }
 663
 664         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 665         PFLAG(MAC, 2, TRS, "TRS");
 666         PFLAG(MAC, 2, BSR, "BSR");
 667         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 668         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 669         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 670         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 671
 672         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 673         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 674
 675         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 676         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
 677                 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
 678                 break;
 679         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
 680                 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
 681                 break;
 682         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
 683                 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
 684                 break;
 685         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
 686                 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
 687                 break;
 688         }
 689
 690         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 691         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 692         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 693
 694         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 695         PFLAG(MAC, 4, QTP, "QTP");
 696         PFLAG(MAC, 4, BQR, "BQR");
 697         PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
 698         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 699         PFLAG(MAC, 4, OPS, "OPS");
 700         PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
 701
 702         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 703
 704         PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
 705               "SUBCHAN-SELECVITE-TRANSMISSION");
 706         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 707         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 708         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 709         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 710         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 711
 712         cap = hec->he_cap_elem.phy_cap_info;
 713         p += scnprintf(p, buf_sz + buf - p,
 714                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 715                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 716                        cap[7], cap[8], cap[9], cap[10]);
 717
 718         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 719               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 720         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 721               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 722         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 723               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 724         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 725               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 726         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 727               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 728         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 729               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 730
 731         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 732         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 733                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 734                 break;
 735         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 736                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 737                 break;
 738         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 739                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 740                 break;
 741         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 742                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 743                 break;
 744         }
 745
 746         PFLAG(PHY, 1, DEVICE_CLASS_A,
 747               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 748         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 749               "LDPC-CODING-IN-PAYLOAD");
 750         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 751               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 752         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 753
 754         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 755         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 756         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 757         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 758         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 759         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 760         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 761
 762         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 763         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 764                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 765                 break;
 766         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 767                 PRINT("DCM-MAX-CONST-TX-BPSK");
 768                 break;
 769         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 770                 PRINT("DCM-MAX-CONST-TX-QPSK");
 771                 break;
 772         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 773                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 774                 break;
 775         }
 776
 777         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 778         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 779
 780         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 781         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 782                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 783                 break;
 784         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 785                 PRINT("DCM-MAX-CONST-RX-BPSK");
 786                 break;
 787         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 788                 PRINT("DCM-MAX-CONST-RX-QPSK");
 789                 break;
 790         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 791                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 792                 break;
 793         }
 794
 795         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 796         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 797         PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
 798               "RX-HE-MU-PPDU-FROM-NON-AP-STA");
 799         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 800
 801         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 802         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 803
 804         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 805                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 806         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 807                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 808
 809         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 810                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 811         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 812                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 813         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 814         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 815
 816         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 817         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 818         PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
 819         PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
 820         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 821         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 822         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 823               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 824         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 825
 826         PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
 827         PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
 828         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 829               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 830         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 831         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 832         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 833
 834         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 835               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 836         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 837               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 838         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 839         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 840         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 841               "HE-ER-SU-1XLTF-AND-08-US-GI");
 842         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 843               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 844
 845         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 846         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 847                 PRINT("DCM-MAX-RU-242");
 848                 break;
 849         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 850                 PRINT("DCM-MAX-RU-484");
 851                 break;
 852         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 853                 PRINT("DCM-MAX-RU-996");
 854                 break;
 855         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 856                 PRINT("DCM-MAX-RU-2x996");
 857                 break;
 858         }
 859
 860         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 861               "LONGER-THAN-16-SIGB-OFDM-SYM");
 862         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 863               "NON-TRIGGERED-CQI-FEEDBACK");
 864         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 865               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 866         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 867               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 868         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 869               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 870         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 871               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 872
 873         switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
 874         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
 875                 PRINT("NOMINAL-PACKET-PADDING-0US");
 876                 break;
 877         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
 878                 PRINT("NOMINAL-PACKET-PADDING-8US");
 879                 break;
 880         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
 881                 PRINT("NOMINAL-PACKET-PADDING-16US");
 882                 break;
 883         }
 884
 885 #undef PFLAG_RANGE_DEFAULT
 886 #undef PFLAG_RANGE
 887 #undef PFLAG
 888
 889 #define PRINT_NSS_SUPP(f, n)                                            \
 890         do {                                                            \
 891                 int _i;                                                 \
 892                 u16 v = le16_to_cpu(nss->f);                            \
 893                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 894                 for (_i = 0; _i < 8; _i += 2) {                         \
 895                         switch ((v >> _i) & 0x3) {                      \
 896                         case 0:                                         \
 897                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 898                                 break;                                  \
 899                         case 1:                                         \
 900                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 901                                 break;                                  \
 902                         case 2:                                         \
 903                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 904                                 break;                                  \
 905                         case 3:                                         \
 906                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 907                                 break;                                  \
 908                         }                                               \
 909                 }                                                       \
 910         } while (0)
 911
 912         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 913         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 914
 915         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 916                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 917                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 918         }
 919
 920         if (cap[0] &
 921             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 922                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 923                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 924         }
 925
 926 #undef PRINT_NSS_SUPP
 927 #undef PRINT
 928
 929         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 930                 goto out;
 931
 932         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
 933                        hec->ppe_thres[0]);
 934
 935         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
 936         for (i = 1; i < ppe_size; i++) {
 937                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
 938                                hec->ppe_thres[i]);
 939         }
 940         p += scnprintf(p, buf_sz + buf - p, "\n");
 941
 942 out:
 943         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 944         kfree(buf);
 945         return ret;
 946 }
 947 STA_OPS(he_capa);
 948
 949 #define DEBUGFS_ADD(name) \
 950         debugfs_create_file(#name, 0400, \
 951                 sta->debugfs_dir, sta, &sta_ ##name## _ops);
 952
 953 #define DEBUGFS_ADD_COUNTER(name, field)                                \
 954         if (sizeof(sta->field) == sizeof(u32))                          \
 955                 debugfs_create_u32(#name, 0400, sta->debugfs_dir,       \
 956                         (u32 *) &sta->field);                           \
 957         else                                                            \
 958                 debugfs_create_u64(#name, 0400, sta->debugfs_dir,       \
 959                         (u64 *) &sta->field);
 960
 961 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 962 {
 963         struct ieee80211_local *local = sta->local;
 964         struct ieee80211_sub_if_data *sdata = sta->sdata;
 965         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 966         u8 mac[3*ETH_ALEN];
 967
 968         if (!stations_dir)
 969                 return;
 970
 971         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
 972
 973         /*
 974          * This might fail due to a race condition:
 975          * When mac80211 unlinks a station, the debugfs entries
 976          * remain, but it is already possible to link a new
 977          * station with the same address which triggers adding
 978          * it to debugfs; therefore, if the old station isn't
 979          * destroyed quickly enough the old station's debugfs
 980          * dir might still be around.
 981          */
 982         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
 983
 984         DEBUGFS_ADD(flags);
 985         DEBUGFS_ADD(aid);
 986         DEBUGFS_ADD(num_ps_buf_frames);
 987         DEBUGFS_ADD(last_seq_ctrl);
 988         DEBUGFS_ADD(agg_status);
 989         DEBUGFS_ADD(ht_capa);
 990         DEBUGFS_ADD(vht_capa);
 991         DEBUGFS_ADD(he_capa);
 992
 993         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
 994         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
 995         DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
 996
 997         if (local->ops->wake_tx_queue)
 998                 DEBUGFS_ADD(aqm);
 999
1000         if (wiphy_ext_feature_isset(local->hw.wiphy,
1001                                     NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
1002                 DEBUGFS_ADD(airtime);
1003
1004         if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
1005                 debugfs_create_x32("driver_buffered_tids", 0400,
1006                                    sta->debugfs_dir,
1007                                    (u32 *)&sta->driver_buffered_tids);
1008         else
1009                 debugfs_create_x64("driver_buffered_tids", 0400,
1010                                    sta->debugfs_dir,
1011                                    (u64 *)&sta->driver_buffered_tids);
1012
1013         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1014 }
1015
1016 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1017 {
1018         debugfs_remove_recursive(sta->debugfs_dir);
1019         sta->debugfs_dir = NULL;
1020 }