net/mac80211/debugfs_sta.c

   1 /*
   2  * Copyright 2003-2005  Devicescape Software, Inc.
   3  * Copyright (c) 2006   Jiri Benc <jbenc@suse.cz>
   4  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
   5  * Copyright 2013-2014  Intel Mobile Communications GmbH
   6  * Copyright(c) 2016 Intel Deutschland GmbH
   7  * Copyright (C) 2018 - 2019 Intel Corporation
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/debugfs.h>
  15 #include <linux/ieee80211.h>
  16 #include "ieee80211_i.h"
  17 #include "debugfs.h"
  18 #include "debugfs_sta.h"
  19 #include "sta_info.h"
  20 #include "driver-ops.h"
  21
  22 /* sta attributtes */
  23
  24 #define STA_READ(name, field, format_string)                            \
  25 static ssize_t sta_ ##name## _read(struct file *file,                   \
  26                                    char __user *userbuf,                \
  27                                    size_t count, loff_t *ppos)          \
  28 {                                                                       \
  29         struct sta_info *sta = file->private_data;                      \
  30         return mac80211_format_buffer(userbuf, count, ppos,             \
  31                                       format_string, sta->field);       \
  32 }
  33 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
  34
  35 #define STA_OPS(name)                                                   \
  36 static const struct file_operations sta_ ##name## _ops = {              \
  37         .read = sta_##name##_read,                                      \
  38         .open = simple_open,                                            \
  39         .llseek = generic_file_llseek,                                  \
  40 }
  41
  42 #define STA_OPS_RW(name)                                                \
  43 static const struct file_operations sta_ ##name## _ops = {              \
  44         .read = sta_##name##_read,                                      \
  45         .write = sta_##name##_write,                                    \
  46         .open = simple_open,                                            \
  47         .llseek = generic_file_llseek,                                  \
  48 }
  49
  50 #define STA_FILE(name, field, format)                                   \
  51                 STA_READ_##format(name, field)                          \
  52                 STA_OPS(name)
  53
  54 STA_FILE(aid, sta.aid, D);
  55
  56 static const char * const sta_flag_names[] = {
  57 #define FLAG(F) [WLAN_STA_##F] = #F
  58         FLAG(AUTH),
  59         FLAG(ASSOC),
  60         FLAG(PS_STA),
  61         FLAG(AUTHORIZED),
  62         FLAG(SHORT_PREAMBLE),
  63         FLAG(WDS),
  64         FLAG(CLEAR_PS_FILT),
  65         FLAG(MFP),
  66         FLAG(BLOCK_BA),
  67         FLAG(PS_DRIVER),
  68         FLAG(PSPOLL),
  69         FLAG(TDLS_PEER),
  70         FLAG(TDLS_PEER_AUTH),
  71         FLAG(TDLS_INITIATOR),
  72         FLAG(TDLS_CHAN_SWITCH),
  73         FLAG(TDLS_OFF_CHANNEL),
  74         FLAG(TDLS_WIDER_BW),
  75         FLAG(UAPSD),
  76         FLAG(SP),
  77         FLAG(4ADDR_EVENT),
  78         FLAG(INSERTED),
  79         FLAG(RATE_CONTROL),
  80         FLAG(TOFFSET_KNOWN),
  81         FLAG(MPSP_OWNER),
  82         FLAG(MPSP_RECIPIENT),
  83         FLAG(PS_DELIVER),
  84 #undef FLAG
  85 };
  86
  87 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
  88                               size_t count, loff_t *ppos)
  89 {
  90         char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
  91         char *end = buf + sizeof(buf) - 1;
  92         struct sta_info *sta = file->private_data;
  93         unsigned int flg;
  94
  95         BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
  96
  97         for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
  98                 if (test_sta_flag(sta, flg))
  99                         pos += scnprintf(pos, end - pos, "%s\n",
 100                                          sta_flag_names[flg]);
 101         }
 102
 103         return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
 104 }
 105 STA_OPS(flags);
 106
 107 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
 108                                           char __user *userbuf,
 109                                           size_t count, loff_t *ppos)
 110 {
 111         struct sta_info *sta = file->private_data;
 112         char buf[17*IEEE80211_NUM_ACS], *p = buf;
 113         int ac;
 114
 115         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 116                 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
 117                                skb_queue_len(&sta->ps_tx_buf[ac]) +
 118                                skb_queue_len(&sta->tx_filtered[ac]));
 119         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 120 }
 121 STA_OPS(num_ps_buf_frames);
 122
 123 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
 124                                       size_t count, loff_t *ppos)
 125 {
 126         char buf[15*IEEE80211_NUM_TIDS], *p = buf;
 127         int i;
 128         struct sta_info *sta = file->private_data;
 129         for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 130                 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
 131                                le16_to_cpu(sta->last_seq_ctrl[i]));
 132         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 133         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 134 }
 135 STA_OPS(last_seq_ctrl);
 136
 137 #define AQM_TXQ_ENTRY_LEN 130
 138
 139 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
 140                         size_t count, loff_t *ppos)
 141 {
 142         struct sta_info *sta = file->private_data;
 143         struct ieee80211_local *local = sta->local;
 144         size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
 145         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 146         struct txq_info *txqi;
 147         ssize_t rv;
 148         int i;
 149
 150         if (!buf)
 151                 return -ENOMEM;
 152
 153         spin_lock_bh(&local->fq.lock);
 154         rcu_read_lock();
 155
 156         p += scnprintf(p,
 157                        bufsz+buf-p,
 158                        "target %uus interval %uus ecn %s\n",
 159                        codel_time_to_us(sta->cparams.target),
 160                        codel_time_to_us(sta->cparams.interval),
 161                        sta->cparams.ecn ? "yes" : "no");
 162         p += scnprintf(p,
 163                        bufsz+buf-p,
 164                        "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
 165
 166         for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
 167                 if (!sta->sta.txq[i])
 168                         continue;
 169                 txqi = to_txq_info(sta->sta.txq[i]);
 170                 p += scnprintf(p, bufsz+buf-p,
 171                                "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
 172                                txqi->txq.tid,
 173                                txqi->txq.ac,
 174                                txqi->tin.backlog_bytes,
 175                                txqi->tin.backlog_packets,
 176                                txqi->tin.flows,
 177                                txqi->cstats.drop_count,
 178                                txqi->cstats.ecn_mark,
 179                                txqi->tin.overlimit,
 180                                txqi->tin.collisions,
 181                                txqi->tin.tx_bytes,
 182                                txqi->tin.tx_packets,
 183                                txqi->flags,
 184                                test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
 185                                test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
 186                                test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
 187         }
 188
 189         rcu_read_unlock();
 190         spin_unlock_bh(&local->fq.lock);
 191
 192         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 193         kfree(buf);
 194         return rv;
 195 }
 196 STA_OPS(aqm);
 197
 198 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
 199                                 size_t count, loff_t *ppos)
 200 {
 201         struct sta_info *sta = file->private_data;
 202         struct ieee80211_local *local = sta->sdata->local;
 203         size_t bufsz = 200;
 204         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 205         u64 rx_airtime = 0, tx_airtime = 0;
 206         s64 deficit[IEEE80211_NUM_ACS];
 207         ssize_t rv;
 208         int ac;
 209
 210         if (!buf)
 211                 return -ENOMEM;
 212
 213         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 214                 spin_lock_bh(&local->active_txq_lock[ac]);
 215                 rx_airtime += sta->airtime[ac].rx_airtime;
 216                 tx_airtime += sta->airtime[ac].tx_airtime;
 217                 deficit[ac] = sta->airtime[ac].deficit;
 218                 spin_unlock_bh(&local->active_txq_lock[ac]);
 219         }
 220
 221         p += scnprintf(p, bufsz + buf - p,
 222                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 223                 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
 224                 rx_airtime,
 225                 tx_airtime,
 226                 sta->airtime_weight,
 227                 deficit[0],
 228                 deficit[1],
 229                 deficit[2],
 230                 deficit[3]);
 231
 232         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 233         kfree(buf);
 234         return rv;
 235 }
 236
 237 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 238                                  size_t count, loff_t *ppos)
 239 {
 240         struct sta_info *sta = file->private_data;
 241         struct ieee80211_local *local = sta->sdata->local;
 242         int ac;
 243
 244         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 245                 spin_lock_bh(&local->active_txq_lock[ac]);
 246                 sta->airtime[ac].rx_airtime = 0;
 247                 sta->airtime[ac].tx_airtime = 0;
 248                 sta->airtime[ac].deficit = sta->airtime_weight;
 249                 spin_unlock_bh(&local->active_txq_lock[ac]);
 250         }
 251
 252         return count;
 253 }
 254 STA_OPS_RW(airtime);
 255
 256 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 257                                         size_t count, loff_t *ppos)
 258 {
 259         char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 260         int i;
 261         struct sta_info *sta = file->private_data;
 262         struct tid_ampdu_rx *tid_rx;
 263         struct tid_ampdu_tx *tid_tx;
 264
 265         rcu_read_lock();
 266
 267         p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 268                         sta->ampdu_mlme.dialog_token_allocator + 1);
 269         p += scnprintf(p, sizeof(buf) + buf - p,
 270                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 271
 272         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 273                 bool tid_rx_valid;
 274
 275                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 276                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 277                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 278
 279                 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 280                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
 281                                tid_rx_valid);
 282                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 283                                tid_rx_valid ?
 284                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 285                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 286                                 tid_rx ? tid_rx->ssn : 0);
 287
 288                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
 289                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 290                                 tid_tx ? tid_tx->dialog_token : 0);
 291                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
 292                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 293                 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
 294         }
 295         rcu_read_unlock();
 296
 297         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 298 }
 299
 300 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 301                                     size_t count, loff_t *ppos)
 302 {
 303         char _buf[25] = {}, *buf = _buf;
 304         struct sta_info *sta = file->private_data;
 305         bool start, tx;
 306         unsigned long tid;
 307         char *pos;
 308         int ret, timeout = 5000;
 309
 310         if (count > sizeof(_buf))
 311                 return -EINVAL;
 312
 313         if (copy_from_user(buf, userbuf, count))
 314                 return -EFAULT;
 315
 316         buf[sizeof(_buf) - 1] = '\0';
 317         pos = buf;
 318         buf = strsep(&pos, " ");
 319         if (!buf)
 320                 return -EINVAL;
 321
 322         if (!strcmp(buf, "tx"))
 323                 tx = true;
 324         else if (!strcmp(buf, "rx"))
 325                 tx = false;
 326         else
 327                 return -EINVAL;
 328
 329         buf = strsep(&pos, " ");
 330         if (!buf)
 331                 return -EINVAL;
 332         if (!strcmp(buf, "start")) {
 333                 start = true;
 334                 if (!tx)
 335                         return -EINVAL;
 336         } else if (!strcmp(buf, "stop")) {
 337                 start = false;
 338         } else {
 339                 return -EINVAL;
 340         }
 341
 342         buf = strsep(&pos, " ");
 343         if (!buf)
 344                 return -EINVAL;
 345         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 346                 buf = strsep(&pos, " ");
 347                 if (!buf || !tx || !start)
 348                         return -EINVAL;
 349         }
 350
 351         ret = kstrtoul(buf, 0, &tid);
 352         if (ret || tid >= IEEE80211_NUM_TIDS)
 353                 return -EINVAL;
 354
 355         if (tx) {
 356                 if (start)
 357                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 358                                                             timeout);
 359                 else
 360                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 361         } else {
 362                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 363                                                3, true);
 364                 ret = 0;
 365         }
 366
 367         return ret ?: count;
 368 }
 369 STA_OPS_RW(agg_status);
 370
 371 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 372                                 size_t count, loff_t *ppos)
 373 {
 374 #define PRINT_HT_CAP(_cond, _str) \
 375         do { \
 376         if (_cond) \
 377                         p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
 378         } while (0)
 379         char buf[512], *p = buf;
 380         int i;
 381         struct sta_info *sta = file->private_data;
 382         struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
 383
 384         p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 385                         htc->ht_supported ? "" : "not ");
 386         if (htc->ht_supported) {
 387                 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 388
 389                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 390                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 391                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 392
 393                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 394                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 395                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 396
 397                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 398                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 399                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 400                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 401
 402                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 403                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 404                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 405                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 406
 407                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 408
 409                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 410                              "3839 bytes");
 411                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 412                              "7935 bytes");
 413
 414                 /*
 415                  * For beacons and probe response this would mean the BSS
 416                  * does or does not allow the usage of DSSS/CCK HT40.
 417                  * Otherwise it means the STA does or does not use
 418                  * DSSS/CCK HT40.
 419                  */
 420                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 421                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 422
 423                 /* BIT(13) is reserved */
 424
 425                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 426
 427                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 428
 429                 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 430                                 htc->ampdu_factor, htc->ampdu_density);
 431                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
 432
 433                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 434                         p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 435                                         htc->mcs.rx_mask[i]);
 436                 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 437
 438                 /* If not set this is meaningless */
 439                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 440                         p += scnprintf(p, sizeof(buf)+buf-p,
 441                                        "MCS rx highest: %d Mbps\n",
 442                                        le16_to_cpu(htc->mcs.rx_highest));
 443                 }
 444
 445                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 446                                 htc->mcs.tx_params);
 447         }
 448
 449         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 450 }
 451 STA_OPS(ht_capa);
 452
 453 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 454                                  size_t count, loff_t *ppos)
 455 {
 456         char buf[512], *p = buf;
 457         struct sta_info *sta = file->private_data;
 458         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
 459
 460         p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
 461                         vhtc->vht_supported ? "" : "not ");
 462         if (vhtc->vht_supported) {
 463                 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
 464                                vhtc->cap);
 465 #define PFLAG(a, b)                                                     \
 466                 do {                                                    \
 467                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 468                                 p += scnprintf(p, sizeof(buf) + buf - p, \
 469                                                "\t\t%s\n", b);          \
 470                 } while (0)
 471
 472                 switch (vhtc->cap & 0x3) {
 473                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 474                         p += scnprintf(p, sizeof(buf) + buf - p,
 475                                        "\t\tMAX-MPDU-3895\n");
 476                         break;
 477                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 478                         p += scnprintf(p, sizeof(buf) + buf - p,
 479                                        "\t\tMAX-MPDU-7991\n");
 480                         break;
 481                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 482                         p += scnprintf(p, sizeof(buf) + buf - p,
 483                                        "\t\tMAX-MPDU-11454\n");
 484                         break;
 485                 default:
 486                         p += scnprintf(p, sizeof(buf) + buf - p,
 487                                        "\t\tMAX-MPDU-UNKNOWN\n");
 488                 }
 489                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 490                 case 0:
 491                         p += scnprintf(p, sizeof(buf) + buf - p,
 492                                        "\t\t80Mhz\n");
 493                         break;
 494                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 495                         p += scnprintf(p, sizeof(buf) + buf - p,
 496                                        "\t\t160Mhz\n");
 497                         break;
 498                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 499                         p += scnprintf(p, sizeof(buf) + buf - p,
 500                                        "\t\t80+80Mhz\n");
 501                         break;
 502                 default:
 503                         p += scnprintf(p, sizeof(buf) + buf - p,
 504                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 505                                        (vhtc->cap >> 2) & 0x3);
 506                 }
 507                 PFLAG(RXLDPC, "RXLDPC");
 508                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 509                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 510                 PFLAG(TXSTBC, "TXSTBC");
 511                 p += scnprintf(p, sizeof(buf) + buf - p,
 512                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 513                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 514                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 515                 p += scnprintf(p, sizeof(buf) + buf - p,
 516                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 517                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 518                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 519                 p += scnprintf(p, sizeof(buf) + buf - p,
 520                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 521                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 522                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 523                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 524                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 525                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 526                 PFLAG(HTC_VHT, "HTC-VHT");
 527                 p += scnprintf(p, sizeof(buf) + buf - p,
 528                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 529                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 530                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 531                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 532                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 533                 p += scnprintf(p, sizeof(buf) + buf - p,
 534                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 535                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 536                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 537                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 538
 539                 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
 540                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 541                 if (vhtc->vht_mcs.rx_highest)
 542                         p += scnprintf(p, sizeof(buf)+buf-p,
 543                                        "MCS RX highest: %d Mbps\n",
 544                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 545                 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
 546                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 547                 if (vhtc->vht_mcs.tx_highest)
 548                         p += scnprintf(p, sizeof(buf)+buf-p,
 549                                        "MCS TX highest: %d Mbps\n",
 550                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 551 #undef PFLAG
 552         }
 553
 554         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 555 }
 556 STA_OPS(vht_capa);
 557
 558 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 559                                 size_t count, loff_t *ppos)
 560 {
 561         char *buf, *p;
 562         size_t buf_sz = PAGE_SIZE;
 563         struct sta_info *sta = file->private_data;
 564         struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
 565         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 566         u8 ppe_size;
 567         u8 *cap;
 568         int i;
 569         ssize_t ret;
 570
 571         buf = kmalloc(buf_sz, GFP_KERNEL);
 572         if (!buf)
 573                 return -ENOMEM;
 574         p = buf;
 575
 576         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 577                        hec->has_he ? "" : "not ");
 578         if (!hec->has_he)
 579                 goto out;
 580
 581         cap = hec->he_cap_elem.mac_cap_info;
 582         p += scnprintf(p, buf_sz + buf - p,
 583                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 584                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 585
 586 #define PRINT(fmt, ...)                                                 \
 587         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 588                        ##__VA_ARGS__)
 589
 590 #define PFLAG(t, n, a, b)                                               \
 591         do {                                                            \
 592                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 593                         PRINT("%s", b);                                 \
 594         } while (0)
 595
 596 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 597         do {                                                            \
 598                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 599                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 600                 PRINT(fmt, (s << idx) + (m * idx));                     \
 601         } while (0)
 602
 603 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 604         do {                                                            \
 605                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 606                         PRINT("%s", b);                                 \
 607                         break;                                          \
 608                 }                                                       \
 609                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 610         } while (0)
 611
 612         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 613         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 614         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 615         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 616                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 617         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 618                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 619
 620         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 621                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 622         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 623                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 624         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 625                     "MULTI-TID-AGG-RX-QOS-%d");
 626
 627         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 628                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 629                 case 0:
 630                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 631                         break;
 632                 case 1:
 633                         PRINT("LINK-ADAPTATION-RESERVED");
 634                         break;
 635                 case 2:
 636                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 637                         break;
 638                 case 3:
 639                         PRINT("LINK-ADAPTATION-BOTH");
 640                         break;
 641                 }
 642         }
 643
 644         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 645         PFLAG(MAC, 2, TRS, "TRS");
 646         PFLAG(MAC, 2, BSR, "BSR");
 647         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 648         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 649         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 650         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 651
 652         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 653         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 654
 655         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 656         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
 657                 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
 658                 break;
 659         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
 660                 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
 661                 break;
 662         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
 663                 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
 664                 break;
 665         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
 666                 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
 667                 break;
 668         }
 669
 670         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 671         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 672         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 673
 674         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 675         PFLAG(MAC, 4, QTP, "QTP");
 676         PFLAG(MAC, 4, BQR, "BQR");
 677         PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
 678         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 679         PFLAG(MAC, 4, OPS, "OPS");
 680         PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
 681
 682         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 683
 684         PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
 685               "SUBCHAN-SELECVITE-TRANSMISSION");
 686         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 687         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 688         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 689         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 690         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 691
 692         cap = hec->he_cap_elem.phy_cap_info;
 693         p += scnprintf(p, buf_sz + buf - p,
 694                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 695                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 696                        cap[7], cap[8], cap[9], cap[10]);
 697
 698         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 699               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 700         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 701               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 702         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 703               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 704         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 705               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 706         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 707               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 708         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 709               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 710
 711         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 712         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 713                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 714                 break;
 715         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 716                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 717                 break;
 718         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 719                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 720                 break;
 721         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 722                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 723                 break;
 724         }
 725
 726         PFLAG(PHY, 1, DEVICE_CLASS_A,
 727               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 728         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 729               "LDPC-CODING-IN-PAYLOAD");
 730         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 731               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 732         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 733
 734         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 735         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 736         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 737         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 738         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 739         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 740         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 741
 742         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 743         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 744                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 745                 break;
 746         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 747                 PRINT("DCM-MAX-CONST-TX-BPSK");
 748                 break;
 749         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 750                 PRINT("DCM-MAX-CONST-TX-QPSK");
 751                 break;
 752         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 753                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 754                 break;
 755         }
 756
 757         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 758         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 759
 760         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 761         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 762                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 763                 break;
 764         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 765                 PRINT("DCM-MAX-CONST-RX-BPSK");
 766                 break;
 767         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 768                 PRINT("DCM-MAX-CONST-RX-QPSK");
 769                 break;
 770         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 771                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 772                 break;
 773         }
 774
 775         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 776         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 777         PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
 778               "RX-HE-MU-PPDU-FROM-NON-AP-STA");
 779         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 780
 781         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 782         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 783
 784         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 785                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 786         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 787                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 788
 789         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 790                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 791         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 792                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 793         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 794         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 795
 796         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 797         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 798         PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
 799         PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
 800         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 801         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 802         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 803               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 804         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 805
 806         PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
 807         PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
 808         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 809               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 810         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 811         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 812         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 813
 814         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 815               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 816         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 817               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 818         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 819         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 820         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 821               "HE-ER-SU-1XLTF-AND-08-US-GI");
 822         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 823               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 824
 825         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 826         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 827                 PRINT("DCM-MAX-RU-242");
 828                 break;
 829         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 830                 PRINT("DCM-MAX-RU-484");
 831                 break;
 832         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 833                 PRINT("DCM-MAX-RU-996");
 834                 break;
 835         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 836                 PRINT("DCM-MAX-RU-2x996");
 837                 break;
 838         }
 839
 840         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 841               "LONGER-THAN-16-SIGB-OFDM-SYM");
 842         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 843               "NON-TRIGGERED-CQI-FEEDBACK");
 844         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 845               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 846         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 847               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 848         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 849               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 850         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 851               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 852
 853         switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
 854         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
 855                 PRINT("NOMINAL-PACKET-PADDING-0US");
 856                 break;
 857         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
 858                 PRINT("NOMINAL-PACKET-PADDING-8US");
 859                 break;
 860         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
 861                 PRINT("NOMINAL-PACKET-PADDING-16US");
 862                 break;
 863         }
 864
 865 #undef PFLAG_RANGE_DEFAULT
 866 #undef PFLAG_RANGE
 867 #undef PFLAG
 868
 869 #define PRINT_NSS_SUPP(f, n)                                            \
 870         do {                                                            \
 871                 int _i;                                                 \
 872                 u16 v = le16_to_cpu(nss->f);                            \
 873                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 874                 for (_i = 0; _i < 8; _i += 2) {                         \
 875                         switch ((v >> _i) & 0x3) {                      \
 876                         case 0:                                         \
 877                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 878                                 break;                                  \
 879                         case 1:                                         \
 880                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 881                                 break;                                  \
 882                         case 2:                                         \
 883                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 884                                 break;                                  \
 885                         case 3:                                         \
 886                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 887                                 break;                                  \
 888                         }                                               \
 889                 }                                                       \
 890         } while (0)
 891
 892         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 893         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 894
 895         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 896                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 897                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 898         }
 899
 900         if (cap[0] &
 901             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 902                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 903                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 904         }
 905
 906 #undef PRINT_NSS_SUPP
 907 #undef PRINT
 908
 909         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 910                 goto out;
 911
 912         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
 913                        hec->ppe_thres[0]);
 914
 915         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
 916         for (i = 1; i < ppe_size; i++) {
 917                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
 918                                hec->ppe_thres[i]);
 919         }
 920         p += scnprintf(p, buf_sz + buf - p, "\n");
 921
 922 out:
 923         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 924         kfree(buf);
 925         return ret;
 926 }
 927 STA_OPS(he_capa);
 928
 929 #define DEBUGFS_ADD(name) \
 930         debugfs_create_file(#name, 0400, \
 931                 sta->debugfs_dir, sta, &sta_ ##name## _ops);
 932
 933 #define DEBUGFS_ADD_COUNTER(name, field)                                \
 934         if (sizeof(sta->field) == sizeof(u32))                          \
 935                 debugfs_create_u32(#name, 0400, sta->debugfs_dir,       \
 936                         (u32 *) &sta->field);                           \
 937         else                                                            \
 938                 debugfs_create_u64(#name, 0400, sta->debugfs_dir,       \
 939                         (u64 *) &sta->field);
 940
 941 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 942 {
 943         struct ieee80211_local *local = sta->local;
 944         struct ieee80211_sub_if_data *sdata = sta->sdata;
 945         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 946         u8 mac[3*ETH_ALEN];
 947
 948         if (!stations_dir)
 949                 return;
 950
 951         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
 952
 953         /*
 954          * This might fail due to a race condition:
 955          * When mac80211 unlinks a station, the debugfs entries
 956          * remain, but it is already possible to link a new
 957          * station with the same address which triggers adding
 958          * it to debugfs; therefore, if the old station isn't
 959          * destroyed quickly enough the old station's debugfs
 960          * dir might still be around.
 961          */
 962         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
 963         if (!sta->debugfs_dir)
 964                 return;
 965
 966         DEBUGFS_ADD(flags);
 967         DEBUGFS_ADD(aid);
 968         DEBUGFS_ADD(num_ps_buf_frames);
 969         DEBUGFS_ADD(last_seq_ctrl);
 970         DEBUGFS_ADD(agg_status);
 971         DEBUGFS_ADD(ht_capa);
 972         DEBUGFS_ADD(vht_capa);
 973         DEBUGFS_ADD(he_capa);
 974
 975         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
 976         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
 977         DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
 978
 979         if (local->ops->wake_tx_queue)
 980                 DEBUGFS_ADD(aqm);
 981
 982         if (wiphy_ext_feature_isset(local->hw.wiphy,
 983                                     NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
 984                 DEBUGFS_ADD(airtime);
 985
 986         if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
 987                 debugfs_create_x32("driver_buffered_tids", 0400,
 988                                    sta->debugfs_dir,
 989                                    (u32 *)&sta->driver_buffered_tids);
 990         else
 991                 debugfs_create_x64("driver_buffered_tids", 0400,
 992                                    sta->debugfs_dir,
 993                                    (u64 *)&sta->driver_buffered_tids);
 994
 995         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
 996 }
 997
 998 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
 999 {
1000         debugfs_remove_recursive(sta->debugfs_dir);
1001         sta->debugfs_dir = NULL;
1002 }