net/mac80211/debugfs_sta.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright 2003-2005  Devicescape Software, Inc.
   4  * Copyright (c) 2006   Jiri Benc <jbenc@suse.cz>
   5  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright 2013-2014  Intel Mobile Communications GmbH
   7  * Copyright(c) 2016 Intel Deutschland GmbH
   8  * Copyright (C) 2018 - 2020 Intel Corporation
   9  */
  10
  11 #include <linux/debugfs.h>
  12 #include <linux/ieee80211.h>
  13 #include "ieee80211_i.h"
  14 #include "debugfs.h"
  15 #include "debugfs_sta.h"
  16 #include "sta_info.h"
  17 #include "driver-ops.h"
  18
  19 /* sta attributtes */
  20
  21 #define STA_READ(name, field, format_string)                            \
  22 static ssize_t sta_ ##name## _read(struct file *file,                   \
  23                                    char __user *userbuf,                \
  24                                    size_t count, loff_t *ppos)          \
  25 {                                                                       \
  26         struct sta_info *sta = file->private_data;                      \
  27         return mac80211_format_buffer(userbuf, count, ppos,             \
  28                                       format_string, sta->field);       \
  29 }
  30 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
  31
  32 #define STA_OPS(name)                                                   \
  33 static const struct file_operations sta_ ##name## _ops = {              \
  34         .read = sta_##name##_read,                                      \
  35         .open = simple_open,                                            \
  36         .llseek = generic_file_llseek,                                  \
  37 }
  38
  39 #define STA_OPS_RW(name)                                                \
  40 static const struct file_operations sta_ ##name## _ops = {              \
  41         .read = sta_##name##_read,                                      \
  42         .write = sta_##name##_write,                                    \
  43         .open = simple_open,                                            \
  44         .llseek = generic_file_llseek,                                  \
  45 }
  46
  47 #define STA_FILE(name, field, format)                                   \
  48                 STA_READ_##format(name, field)                          \
  49                 STA_OPS(name)
  50
  51 STA_FILE(aid, sta.aid, D);
  52
  53 static const char * const sta_flag_names[] = {
  54 #define FLAG(F) [WLAN_STA_##F] = #F
  55         FLAG(AUTH),
  56         FLAG(ASSOC),
  57         FLAG(PS_STA),
  58         FLAG(AUTHORIZED),
  59         FLAG(SHORT_PREAMBLE),
  60         FLAG(WDS),
  61         FLAG(CLEAR_PS_FILT),
  62         FLAG(MFP),
  63         FLAG(BLOCK_BA),
  64         FLAG(PS_DRIVER),
  65         FLAG(PSPOLL),
  66         FLAG(TDLS_PEER),
  67         FLAG(TDLS_PEER_AUTH),
  68         FLAG(TDLS_INITIATOR),
  69         FLAG(TDLS_CHAN_SWITCH),
  70         FLAG(TDLS_OFF_CHANNEL),
  71         FLAG(TDLS_WIDER_BW),
  72         FLAG(UAPSD),
  73         FLAG(SP),
  74         FLAG(4ADDR_EVENT),
  75         FLAG(INSERTED),
  76         FLAG(RATE_CONTROL),
  77         FLAG(TOFFSET_KNOWN),
  78         FLAG(MPSP_OWNER),
  79         FLAG(MPSP_RECIPIENT),
  80         FLAG(PS_DELIVER),
  81         FLAG(USES_ENCRYPTION),
  82         FLAG(DECAP_OFFLOAD),
  83 #undef FLAG
  84 };
  85
  86 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
  87                               size_t count, loff_t *ppos)
  88 {
  89         char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
  90         char *end = buf + sizeof(buf) - 1;
  91         struct sta_info *sta = file->private_data;
  92         unsigned int flg;
  93
  94         BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
  95
  96         for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
  97                 if (test_sta_flag(sta, flg))
  98                         pos += scnprintf(pos, end - pos, "%s\n",
  99                                          sta_flag_names[flg]);
 100         }
 101
 102         return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
 103 }
 104 STA_OPS(flags);
 105
 106 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
 107                                           char __user *userbuf,
 108                                           size_t count, loff_t *ppos)
 109 {
 110         struct sta_info *sta = file->private_data;
 111         char buf[17*IEEE80211_NUM_ACS], *p = buf;
 112         int ac;
 113
 114         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 115                 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
 116                                skb_queue_len(&sta->ps_tx_buf[ac]) +
 117                                skb_queue_len(&sta->tx_filtered[ac]));
 118         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 119 }
 120 STA_OPS(num_ps_buf_frames);
 121
 122 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
 123                                       size_t count, loff_t *ppos)
 124 {
 125         char buf[15*IEEE80211_NUM_TIDS], *p = buf;
 126         int i;
 127         struct sta_info *sta = file->private_data;
 128         for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 129                 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
 130                                le16_to_cpu(sta->last_seq_ctrl[i]));
 131         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 132         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 133 }
 134 STA_OPS(last_seq_ctrl);
 135
 136 #define AQM_TXQ_ENTRY_LEN 130
 137
 138 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
 139                         size_t count, loff_t *ppos)
 140 {
 141         struct sta_info *sta = file->private_data;
 142         struct ieee80211_local *local = sta->local;
 143         size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
 144         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 145         struct txq_info *txqi;
 146         ssize_t rv;
 147         int i;
 148
 149         if (!buf)
 150                 return -ENOMEM;
 151
 152         spin_lock_bh(&local->fq.lock);
 153         rcu_read_lock();
 154
 155         p += scnprintf(p,
 156                        bufsz+buf-p,
 157                        "target %uus interval %uus ecn %s\n",
 158                        codel_time_to_us(sta->cparams.target),
 159                        codel_time_to_us(sta->cparams.interval),
 160                        sta->cparams.ecn ? "yes" : "no");
 161         p += scnprintf(p,
 162                        bufsz+buf-p,
 163                        "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
 164
 165         for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
 166                 if (!sta->sta.txq[i])
 167                         continue;
 168                 txqi = to_txq_info(sta->sta.txq[i]);
 169                 p += scnprintf(p, bufsz+buf-p,
 170                                "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
 171                                txqi->txq.tid,
 172                                txqi->txq.ac,
 173                                txqi->tin.backlog_bytes,
 174                                txqi->tin.backlog_packets,
 175                                txqi->tin.flows,
 176                                txqi->cstats.drop_count,
 177                                txqi->cstats.ecn_mark,
 178                                txqi->tin.overlimit,
 179                                txqi->tin.collisions,
 180                                txqi->tin.tx_bytes,
 181                                txqi->tin.tx_packets,
 182                                txqi->flags,
 183                                test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
 184                                test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
 185                                test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
 186         }
 187
 188         rcu_read_unlock();
 189         spin_unlock_bh(&local->fq.lock);
 190
 191         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 192         kfree(buf);
 193         return rv;
 194 }
 195 STA_OPS(aqm);
 196
 197 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
 198                                 size_t count, loff_t *ppos)
 199 {
 200         struct sta_info *sta = file->private_data;
 201         struct ieee80211_local *local = sta->sdata->local;
 202         size_t bufsz = 400;
 203         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 204         u64 rx_airtime = 0, tx_airtime = 0;
 205         u64 v_t[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->airtime[ac].lock);
 214                 rx_airtime += sta->airtime[ac].rx_airtime;
 215                 tx_airtime += sta->airtime[ac].tx_airtime;
 216                 v_t[ac] = sta->airtime[ac].v_t;
 217                 spin_unlock_bh(&local->airtime[ac].lock);
 218         }
 219
 220         p += scnprintf(p, bufsz + buf - p,
 221                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 222                 "Virt-T: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
 223                 rx_airtime, tx_airtime, sta->airtime[0].weight,
 224                 v_t[0], v_t[1], v_t[2], v_t[3]);
 225
 226         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 227         kfree(buf);
 228         return rv;
 229 }
 230
 231 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 232                                  size_t count, loff_t *ppos)
 233 {
 234         struct sta_info *sta = file->private_data;
 235         struct ieee80211_local *local = sta->sdata->local;
 236         int ac;
 237
 238         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 239                 spin_lock_bh(&local->airtime[ac].lock);
 240                 sta->airtime[ac].rx_airtime = 0;
 241                 sta->airtime[ac].tx_airtime = 0;
 242                 sta->airtime[ac].v_t = 0;
 243                 spin_unlock_bh(&local->airtime[ac].lock);
 244         }
 245
 246         return count;
 247 }
 248 STA_OPS_RW(airtime);
 249
 250 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
 251                                 size_t count, loff_t *ppos)
 252 {
 253         struct sta_info *sta = file->private_data;
 254         struct ieee80211_local *local = sta->sdata->local;
 255         size_t bufsz = 400;
 256         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 257         u32 q_depth[IEEE80211_NUM_ACS];
 258         u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 259         ssize_t rv;
 260         int ac;
 261
 262         if (!buf)
 263                 return -ENOMEM;
 264
 265         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 266                 spin_lock_bh(&local->airtime[ac].lock);
 267                 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 268                 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 269                 spin_unlock_bh(&local->airtime[ac].lock);
 270                 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 271         }
 272
 273         p += scnprintf(p, bufsz + buf - p,
 274                 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 275                 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 276                 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 277                 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 278                 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
 279
 280         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 281         kfree(buf);
 282         return rv;
 283 }
 284
 285 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
 286                                  size_t count, loff_t *ppos)
 287 {
 288         struct sta_info *sta = file->private_data;
 289         u32 ac, q_limit_l, q_limit_h;
 290         char _buf[100] = {}, *buf = _buf;
 291
 292         if (count > sizeof(_buf))
 293                 return -EINVAL;
 294
 295         if (copy_from_user(buf, userbuf, count))
 296                 return -EFAULT;
 297
 298         buf[sizeof(_buf) - 1] = '\0';
 299         if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 300             != 3)
 301                 return -EINVAL;
 302
 303         if (ac >= IEEE80211_NUM_ACS)
 304                 return -EINVAL;
 305
 306         sta->airtime[ac].aql_limit_low = q_limit_l;
 307         sta->airtime[ac].aql_limit_high = q_limit_h;
 308
 309         return count;
 310 }
 311 STA_OPS_RW(aql);
 312
 313
 314 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 315                                         size_t count, loff_t *ppos)
 316 {
 317         char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 318         int i;
 319         struct sta_info *sta = file->private_data;
 320         struct tid_ampdu_rx *tid_rx;
 321         struct tid_ampdu_tx *tid_tx;
 322
 323         rcu_read_lock();
 324
 325         p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 326                         sta->ampdu_mlme.dialog_token_allocator + 1);
 327         p += scnprintf(p, sizeof(buf) + buf - p,
 328                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 329
 330         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 331                 bool tid_rx_valid;
 332
 333                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 334                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 335                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 336
 337                 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 338                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
 339                                tid_rx_valid);
 340                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 341                                tid_rx_valid ?
 342                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 343                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 344                                 tid_rx ? tid_rx->ssn : 0);
 345
 346                 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
 347                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
 348                                 tid_tx ? tid_tx->dialog_token : 0);
 349                 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
 350                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 351                 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
 352         }
 353         rcu_read_unlock();
 354
 355         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 356 }
 357
 358 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 359                                     size_t count, loff_t *ppos)
 360 {
 361         char _buf[25] = {}, *buf = _buf;
 362         struct sta_info *sta = file->private_data;
 363         bool start, tx;
 364         unsigned long tid;
 365         char *pos;
 366         int ret, timeout = 5000;
 367
 368         if (count > sizeof(_buf))
 369                 return -EINVAL;
 370
 371         if (copy_from_user(buf, userbuf, count))
 372                 return -EFAULT;
 373
 374         buf[sizeof(_buf) - 1] = '\0';
 375         pos = buf;
 376         buf = strsep(&pos, " ");
 377         if (!buf)
 378                 return -EINVAL;
 379
 380         if (!strcmp(buf, "tx"))
 381                 tx = true;
 382         else if (!strcmp(buf, "rx"))
 383                 tx = false;
 384         else
 385                 return -EINVAL;
 386
 387         buf = strsep(&pos, " ");
 388         if (!buf)
 389                 return -EINVAL;
 390         if (!strcmp(buf, "start")) {
 391                 start = true;
 392                 if (!tx)
 393                         return -EINVAL;
 394         } else if (!strcmp(buf, "stop")) {
 395                 start = false;
 396         } else {
 397                 return -EINVAL;
 398         }
 399
 400         buf = strsep(&pos, " ");
 401         if (!buf)
 402                 return -EINVAL;
 403         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 404                 buf = strsep(&pos, " ");
 405                 if (!buf || !tx || !start)
 406                         return -EINVAL;
 407         }
 408
 409         ret = kstrtoul(buf, 0, &tid);
 410         if (ret || tid >= IEEE80211_NUM_TIDS)
 411                 return -EINVAL;
 412
 413         if (tx) {
 414                 if (start)
 415                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 416                                                             timeout);
 417                 else
 418                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 419         } else {
 420                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 421                                                3, true);
 422                 ret = 0;
 423         }
 424
 425         return ret ?: count;
 426 }
 427 STA_OPS_RW(agg_status);
 428
 429 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 430                                 size_t count, loff_t *ppos)
 431 {
 432 #define PRINT_HT_CAP(_cond, _str) \
 433         do { \
 434         if (_cond) \
 435                         p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
 436         } while (0)
 437         char buf[512], *p = buf;
 438         int i;
 439         struct sta_info *sta = file->private_data;
 440         struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
 441
 442         p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 443                         htc->ht_supported ? "" : "not ");
 444         if (htc->ht_supported) {
 445                 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 446
 447                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 448                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 449                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 450
 451                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 452                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 453                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 454
 455                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 456                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 457                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 458                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 459
 460                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 461                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 462                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 463                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 464
 465                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 466
 467                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 468                              "3839 bytes");
 469                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 470                              "7935 bytes");
 471
 472                 /*
 473                  * For beacons and probe response this would mean the BSS
 474                  * does or does not allow the usage of DSSS/CCK HT40.
 475                  * Otherwise it means the STA does or does not use
 476                  * DSSS/CCK HT40.
 477                  */
 478                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 479                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 480
 481                 /* BIT(13) is reserved */
 482
 483                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 484
 485                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 486
 487                 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 488                                 htc->ampdu_factor, htc->ampdu_density);
 489                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
 490
 491                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 492                         p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 493                                         htc->mcs.rx_mask[i]);
 494                 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
 495
 496                 /* If not set this is meaningless */
 497                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 498                         p += scnprintf(p, sizeof(buf)+buf-p,
 499                                        "MCS rx highest: %d Mbps\n",
 500                                        le16_to_cpu(htc->mcs.rx_highest));
 501                 }
 502
 503                 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 504                                 htc->mcs.tx_params);
 505         }
 506
 507         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 508 }
 509 STA_OPS(ht_capa);
 510
 511 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 512                                  size_t count, loff_t *ppos)
 513 {
 514         char buf[512], *p = buf;
 515         struct sta_info *sta = file->private_data;
 516         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
 517
 518         p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
 519                         vhtc->vht_supported ? "" : "not ");
 520         if (vhtc->vht_supported) {
 521                 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
 522                                vhtc->cap);
 523 #define PFLAG(a, b)                                                     \
 524                 do {                                                    \
 525                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 526                                 p += scnprintf(p, sizeof(buf) + buf - p, \
 527                                                "\t\t%s\n", b);          \
 528                 } while (0)
 529
 530                 switch (vhtc->cap & 0x3) {
 531                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 532                         p += scnprintf(p, sizeof(buf) + buf - p,
 533                                        "\t\tMAX-MPDU-3895\n");
 534                         break;
 535                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 536                         p += scnprintf(p, sizeof(buf) + buf - p,
 537                                        "\t\tMAX-MPDU-7991\n");
 538                         break;
 539                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 540                         p += scnprintf(p, sizeof(buf) + buf - p,
 541                                        "\t\tMAX-MPDU-11454\n");
 542                         break;
 543                 default:
 544                         p += scnprintf(p, sizeof(buf) + buf - p,
 545                                        "\t\tMAX-MPDU-UNKNOWN\n");
 546                 }
 547                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 548                 case 0:
 549                         p += scnprintf(p, sizeof(buf) + buf - p,
 550                                        "\t\t80Mhz\n");
 551                         break;
 552                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 553                         p += scnprintf(p, sizeof(buf) + buf - p,
 554                                        "\t\t160Mhz\n");
 555                         break;
 556                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 557                         p += scnprintf(p, sizeof(buf) + buf - p,
 558                                        "\t\t80+80Mhz\n");
 559                         break;
 560                 default:
 561                         p += scnprintf(p, sizeof(buf) + buf - p,
 562                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 563                                        (vhtc->cap >> 2) & 0x3);
 564                 }
 565                 PFLAG(RXLDPC, "RXLDPC");
 566                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 567                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 568                 PFLAG(TXSTBC, "TXSTBC");
 569                 p += scnprintf(p, sizeof(buf) + buf - p,
 570                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 571                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 572                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 573                 p += scnprintf(p, sizeof(buf) + buf - p,
 574                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 575                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 576                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 577                 p += scnprintf(p, sizeof(buf) + buf - p,
 578                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 579                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 580                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 581                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 582                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 583                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 584                 PFLAG(HTC_VHT, "HTC-VHT");
 585                 p += scnprintf(p, sizeof(buf) + buf - p,
 586                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 587                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 588                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 589                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 590                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 591                 p += scnprintf(p, sizeof(buf) + buf - p,
 592                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 593                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 594                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 595                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 596
 597                 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
 598                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 599                 if (vhtc->vht_mcs.rx_highest)
 600                         p += scnprintf(p, sizeof(buf)+buf-p,
 601                                        "MCS RX highest: %d Mbps\n",
 602                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 603                 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
 604                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 605                 if (vhtc->vht_mcs.tx_highest)
 606                         p += scnprintf(p, sizeof(buf)+buf-p,
 607                                        "MCS TX highest: %d Mbps\n",
 608                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 609 #undef PFLAG
 610         }
 611
 612         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 613 }
 614 STA_OPS(vht_capa);
 615
 616 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 617                                 size_t count, loff_t *ppos)
 618 {
 619         char *buf, *p;
 620         size_t buf_sz = PAGE_SIZE;
 621         struct sta_info *sta = file->private_data;
 622         struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
 623         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 624         u8 ppe_size;
 625         u8 *cap;
 626         int i;
 627         ssize_t ret;
 628
 629         buf = kmalloc(buf_sz, GFP_KERNEL);
 630         if (!buf)
 631                 return -ENOMEM;
 632         p = buf;
 633
 634         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 635                        hec->has_he ? "" : "not ");
 636         if (!hec->has_he)
 637                 goto out;
 638
 639         cap = hec->he_cap_elem.mac_cap_info;
 640         p += scnprintf(p, buf_sz + buf - p,
 641                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 642                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 643
 644 #define PRINT(fmt, ...)                                                 \
 645         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 646                        ##__VA_ARGS__)
 647
 648 #define PFLAG(t, n, a, b)                                               \
 649         do {                                                            \
 650                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 651                         PRINT("%s", b);                                 \
 652         } while (0)
 653
 654 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 655         do {                                                            \
 656                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 657                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 658                 PRINT(fmt, (s << idx) + (m * idx));                     \
 659         } while (0)
 660
 661 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 662         do {                                                            \
 663                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 664                         PRINT("%s", b);                                 \
 665                         break;                                          \
 666                 }                                                       \
 667                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 668         } while (0)
 669
 670         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 671         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 672         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 673         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 674                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 675         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 676                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 677
 678         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 679                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 680         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 681                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 682         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 683                     "MULTI-TID-AGG-RX-QOS-%d");
 684
 685         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 686                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 687                 case 0:
 688                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 689                         break;
 690                 case 1:
 691                         PRINT("LINK-ADAPTATION-RESERVED");
 692                         break;
 693                 case 2:
 694                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 695                         break;
 696                 case 3:
 697                         PRINT("LINK-ADAPTATION-BOTH");
 698                         break;
 699                 }
 700         }
 701
 702         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 703         PFLAG(MAC, 2, TRS, "TRS");
 704         PFLAG(MAC, 2, BSR, "BSR");
 705         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 706         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 707         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 708         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 709
 710         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 711         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 712
 713         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 714         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
 715                 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
 716                 break;
 717         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
 718                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
 719                 break;
 720         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
 721                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
 722                 break;
 723         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
 724                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
 725                 break;
 726         }
 727
 728         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 729         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 730         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 731
 732         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 733         PFLAG(MAC, 4, QTP, "QTP");
 734         PFLAG(MAC, 4, BQR, "BQR");
 735         PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
 736         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 737         PFLAG(MAC, 4, OPS, "OPS");
 738         PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
 739
 740         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 741
 742         PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
 743               "SUBCHAN-SELECTIVE-TRANSMISSION");
 744         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 745         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 746         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 747         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 748         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 749
 750         cap = hec->he_cap_elem.phy_cap_info;
 751         p += scnprintf(p, buf_sz + buf - p,
 752                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 753                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 754                        cap[7], cap[8], cap[9], cap[10]);
 755
 756         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 757               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 758         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 759               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 760         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 761               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 762         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 763               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 764         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 765               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 766         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 767               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 768
 769         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 770         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 771                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 772                 break;
 773         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 774                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 775                 break;
 776         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 777                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 778                 break;
 779         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 780                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 781                 break;
 782         }
 783
 784         PFLAG(PHY, 1, DEVICE_CLASS_A,
 785               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 786         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 787               "LDPC-CODING-IN-PAYLOAD");
 788         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 789               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 790         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 791
 792         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 793         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 794         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 795         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 796         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 797         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 798         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 799
 800         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 801         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 802                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 803                 break;
 804         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 805                 PRINT("DCM-MAX-CONST-TX-BPSK");
 806                 break;
 807         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 808                 PRINT("DCM-MAX-CONST-TX-QPSK");
 809                 break;
 810         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 811                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 812                 break;
 813         }
 814
 815         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 816         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 817
 818         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 819         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 820                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 821                 break;
 822         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 823                 PRINT("DCM-MAX-CONST-RX-BPSK");
 824                 break;
 825         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 826                 PRINT("DCM-MAX-CONST-RX-QPSK");
 827                 break;
 828         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 829                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 830                 break;
 831         }
 832
 833         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 834         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 835         PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
 836               "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
 837         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 838
 839         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 840         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 841
 842         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 843                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 844         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 845                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 846
 847         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 848                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 849         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 850                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 851         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 852         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 853
 854         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 855         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 856         PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
 857         PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
 858               "MU-BEAMFORMING-PARTIAL-BW-FB");
 859         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 860         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 861         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 862               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 863         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 864
 865         PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
 866         PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
 867         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 868               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 869         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 870         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 871         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 872
 873         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 874               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 875         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 876               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 877         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 878         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 879         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 880               "HE-ER-SU-1XLTF-AND-08-US-GI");
 881         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 882               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 883
 884         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 885         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 886                 PRINT("DCM-MAX-RU-242");
 887                 break;
 888         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 889                 PRINT("DCM-MAX-RU-484");
 890                 break;
 891         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 892                 PRINT("DCM-MAX-RU-996");
 893                 break;
 894         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 895                 PRINT("DCM-MAX-RU-2x996");
 896                 break;
 897         }
 898
 899         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 900               "LONGER-THAN-16-SIGB-OFDM-SYM");
 901         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 902               "NON-TRIGGERED-CQI-FEEDBACK");
 903         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 904               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 905         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 906               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 907         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 908               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 909         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 910               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 911
 912         switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
 913         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
 914                 PRINT("NOMINAL-PACKET-PADDING-0US");
 915                 break;
 916         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
 917                 PRINT("NOMINAL-PACKET-PADDING-8US");
 918                 break;
 919         case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
 920                 PRINT("NOMINAL-PACKET-PADDING-16US");
 921                 break;
 922         }
 923
 924 #undef PFLAG_RANGE_DEFAULT
 925 #undef PFLAG_RANGE
 926 #undef PFLAG
 927
 928 #define PRINT_NSS_SUPP(f, n)                                            \
 929         do {                                                            \
 930                 int _i;                                                 \
 931                 u16 v = le16_to_cpu(nss->f);                            \
 932                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 933                 for (_i = 0; _i < 8; _i += 2) {                         \
 934                         switch ((v >> _i) & 0x3) {                      \
 935                         case 0:                                         \
 936                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 937                                 break;                                  \
 938                         case 1:                                         \
 939                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 940                                 break;                                  \
 941                         case 2:                                         \
 942                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 943                                 break;                                  \
 944                         case 3:                                         \
 945                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 946                                 break;                                  \
 947                         }                                               \
 948                 }                                                       \
 949         } while (0)
 950
 951         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 952         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 953
 954         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 955                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 956                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 957         }
 958
 959         if (cap[0] &
 960             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 961                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 962                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 963         }
 964
 965 #undef PRINT_NSS_SUPP
 966 #undef PRINT
 967
 968         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 969                 goto out;
 970
 971         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
 972                        hec->ppe_thres[0]);
 973
 974         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
 975         for (i = 1; i < ppe_size; i++) {
 976                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
 977                                hec->ppe_thres[i]);
 978         }
 979         p += scnprintf(p, buf_sz + buf - p, "\n");
 980
 981 out:
 982         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 983         kfree(buf);
 984         return ret;
 985 }
 986 STA_OPS(he_capa);
 987
 988 #define DEBUGFS_ADD(name) \
 989         debugfs_create_file(#name, 0400, \
 990                 sta->debugfs_dir, sta, &sta_ ##name## _ops)
 991
 992 #define DEBUGFS_ADD_COUNTER(name, field)                                \
 993         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
 994
 995 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 996 {
 997         struct ieee80211_local *local = sta->local;
 998         struct ieee80211_sub_if_data *sdata = sta->sdata;
 999         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1000         u8 mac[3*ETH_ALEN];
1001
1002         if (!stations_dir)
1003                 return;
1004
1005         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1006
1007         /*
1008          * This might fail due to a race condition:
1009          * When mac80211 unlinks a station, the debugfs entries
1010          * remain, but it is already possible to link a new
1011          * station with the same address which triggers adding
1012          * it to debugfs; therefore, if the old station isn't
1013          * destroyed quickly enough the old station's debugfs
1014          * dir might still be around.
1015          */
1016         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1017
1018         DEBUGFS_ADD(flags);
1019         DEBUGFS_ADD(aid);
1020         DEBUGFS_ADD(num_ps_buf_frames);
1021         DEBUGFS_ADD(last_seq_ctrl);
1022         DEBUGFS_ADD(agg_status);
1023         DEBUGFS_ADD(ht_capa);
1024         DEBUGFS_ADD(vht_capa);
1025         DEBUGFS_ADD(he_capa);
1026
1027         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1028         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1029         DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1030
1031         if (local->ops->wake_tx_queue) {
1032                 DEBUGFS_ADD(aqm);
1033                 DEBUGFS_ADD(airtime);
1034         }
1035
1036         if (wiphy_ext_feature_isset(local->hw.wiphy,
1037                                     NL80211_EXT_FEATURE_AQL))
1038                 DEBUGFS_ADD(aql);
1039
1040         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1041                            &sta->driver_buffered_tids);
1042
1043         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1044 }
1045
1046 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1047 {
1048         debugfs_remove_recursive(sta->debugfs_dir);
1049         sta->debugfs_dir = NULL;
1050 }