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 - 2021 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%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                                test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : "");
 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 = 400;
 204         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 205         u64 rx_airtime = 0, tx_airtime = 0;
 206         s32 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: %d us VI: %d us BE: %d us BK: %d us\n",
 224                 rx_airtime, tx_airtime, sta->airtime_weight,
 225                 deficit[0], deficit[1], deficit[2], deficit[3]);
 226
 227         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 228         kfree(buf);
 229         return rv;
 230 }
 231
 232 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 233                                  size_t count, loff_t *ppos)
 234 {
 235         struct sta_info *sta = file->private_data;
 236         struct ieee80211_local *local = sta->sdata->local;
 237         int ac;
 238
 239         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 240                 spin_lock_bh(&local->active_txq_lock[ac]);
 241                 sta->airtime[ac].rx_airtime = 0;
 242                 sta->airtime[ac].tx_airtime = 0;
 243                 sta->airtime[ac].deficit = sta->airtime_weight;
 244                 spin_unlock_bh(&local->active_txq_lock[ac]);
 245         }
 246
 247         return count;
 248 }
 249 STA_OPS_RW(airtime);
 250
 251 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
 252                                 size_t count, loff_t *ppos)
 253 {
 254         struct sta_info *sta = file->private_data;
 255         struct ieee80211_local *local = sta->sdata->local;
 256         size_t bufsz = 400;
 257         char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 258         u32 q_depth[IEEE80211_NUM_ACS];
 259         u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 260         ssize_t rv;
 261         int ac;
 262
 263         if (!buf)
 264                 return -ENOMEM;
 265
 266         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 267                 spin_lock_bh(&local->active_txq_lock[ac]);
 268                 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 269                 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 270                 spin_unlock_bh(&local->active_txq_lock[ac]);
 271                 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 272         }
 273
 274         p += scnprintf(p, bufsz + buf - p,
 275                 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 276                 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 277                 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 278                 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 279                 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
 280
 281         rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 282         kfree(buf);
 283         return rv;
 284 }
 285
 286 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
 287                                  size_t count, loff_t *ppos)
 288 {
 289         struct sta_info *sta = file->private_data;
 290         u32 ac, q_limit_l, q_limit_h;
 291         char _buf[100] = {}, *buf = _buf;
 292
 293         if (count > sizeof(_buf))
 294                 return -EINVAL;
 295
 296         if (copy_from_user(buf, userbuf, count))
 297                 return -EFAULT;
 298
 299         buf[sizeof(_buf) - 1] = '\0';
 300         if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 301             != 3)
 302                 return -EINVAL;
 303
 304         if (ac >= IEEE80211_NUM_ACS)
 305                 return -EINVAL;
 306
 307         sta->airtime[ac].aql_limit_low = q_limit_l;
 308         sta->airtime[ac].aql_limit_high = q_limit_h;
 309
 310         return count;
 311 }
 312 STA_OPS_RW(aql);
 313
 314
 315 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 316                                         size_t count, loff_t *ppos)
 317 {
 318         char *buf, *p;
 319         ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
 320         int i;
 321         struct sta_info *sta = file->private_data;
 322         struct tid_ampdu_rx *tid_rx;
 323         struct tid_ampdu_tx *tid_tx;
 324         ssize_t ret;
 325
 326         buf = kzalloc(bufsz, GFP_KERNEL);
 327         if (!buf)
 328                 return -ENOMEM;
 329         p = buf;
 330
 331         rcu_read_lock();
 332
 333         p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
 334                         sta->ampdu_mlme.dialog_token_allocator + 1);
 335         p += scnprintf(p, bufsz + buf - p,
 336                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 337
 338         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 339                 bool tid_rx_valid;
 340
 341                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 342                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 343                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 344
 345                 p += scnprintf(p, bufsz + buf - p, "%02d", i);
 346                 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
 347                                tid_rx_valid);
 348                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 349                                tid_rx_valid ?
 350                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 351                 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
 352                                 tid_rx ? tid_rx->ssn : 0);
 353
 354                 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
 355                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 356                                 tid_tx ? tid_tx->dialog_token : 0);
 357                 p += scnprintf(p, bufsz + buf - p, "\t%03d",
 358                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 359                 p += scnprintf(p, bufsz + buf - p, "\n");
 360         }
 361         rcu_read_unlock();
 362
 363         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 364         kfree(buf);
 365         return ret;
 366 }
 367
 368 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 369                                     size_t count, loff_t *ppos)
 370 {
 371         char _buf[25] = {}, *buf = _buf;
 372         struct sta_info *sta = file->private_data;
 373         bool start, tx;
 374         unsigned long tid;
 375         char *pos;
 376         int ret, timeout = 5000;
 377
 378         if (count > sizeof(_buf))
 379                 return -EINVAL;
 380
 381         if (copy_from_user(buf, userbuf, count))
 382                 return -EFAULT;
 383
 384         buf[sizeof(_buf) - 1] = '\0';
 385         pos = buf;
 386         buf = strsep(&pos, " ");
 387         if (!buf)
 388                 return -EINVAL;
 389
 390         if (!strcmp(buf, "tx"))
 391                 tx = true;
 392         else if (!strcmp(buf, "rx"))
 393                 tx = false;
 394         else
 395                 return -EINVAL;
 396
 397         buf = strsep(&pos, " ");
 398         if (!buf)
 399                 return -EINVAL;
 400         if (!strcmp(buf, "start")) {
 401                 start = true;
 402                 if (!tx)
 403                         return -EINVAL;
 404         } else if (!strcmp(buf, "stop")) {
 405                 start = false;
 406         } else {
 407                 return -EINVAL;
 408         }
 409
 410         buf = strsep(&pos, " ");
 411         if (!buf)
 412                 return -EINVAL;
 413         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 414                 buf = strsep(&pos, " ");
 415                 if (!buf || !tx || !start)
 416                         return -EINVAL;
 417         }
 418
 419         ret = kstrtoul(buf, 0, &tid);
 420         if (ret || tid >= IEEE80211_NUM_TIDS)
 421                 return -EINVAL;
 422
 423         if (tx) {
 424                 if (start)
 425                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 426                                                             timeout);
 427                 else
 428                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 429         } else {
 430                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 431                                                3, true);
 432                 ret = 0;
 433         }
 434
 435         return ret ?: count;
 436 }
 437 STA_OPS_RW(agg_status);
 438
 439 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 440                                 size_t count, loff_t *ppos)
 441 {
 442 #define PRINT_HT_CAP(_cond, _str) \
 443         do { \
 444         if (_cond) \
 445                         p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
 446         } while (0)
 447         char *buf, *p;
 448         int i;
 449         ssize_t bufsz = 512;
 450         struct sta_info *sta = file->private_data;
 451         struct ieee80211_sta_ht_cap *htc = &sta->sta.deflink.ht_cap;
 452         ssize_t ret;
 453
 454         buf = kzalloc(bufsz, GFP_KERNEL);
 455         if (!buf)
 456                 return -ENOMEM;
 457         p = buf;
 458
 459         p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
 460                         htc->ht_supported ? "" : "not ");
 461         if (htc->ht_supported) {
 462                 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
 463
 464                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 465                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 466                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 467
 468                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 469                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 470                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 471
 472                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 473                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 474                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 475                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 476
 477                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 478                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 479                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 480                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 481
 482                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 483
 484                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 485                              "3839 bytes");
 486                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 487                              "7935 bytes");
 488
 489                 /*
 490                  * For beacons and probe response this would mean the BSS
 491                  * does or does not allow the usage of DSSS/CCK HT40.
 492                  * Otherwise it means the STA does or does not use
 493                  * DSSS/CCK HT40.
 494                  */
 495                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 496                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 497
 498                 /* BIT(13) is reserved */
 499
 500                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 501
 502                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 503
 504                 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
 505                                 htc->ampdu_factor, htc->ampdu_density);
 506                 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
 507
 508                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 509                         p += scnprintf(p, bufsz + buf - p, " %.2x",
 510                                         htc->mcs.rx_mask[i]);
 511                 p += scnprintf(p, bufsz + buf - p, "\n");
 512
 513                 /* If not set this is meaningless */
 514                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 515                         p += scnprintf(p, bufsz + buf - p,
 516                                        "MCS rx highest: %d Mbps\n",
 517                                        le16_to_cpu(htc->mcs.rx_highest));
 518                 }
 519
 520                 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
 521                                 htc->mcs.tx_params);
 522         }
 523
 524         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 525         kfree(buf);
 526         return ret;
 527 }
 528 STA_OPS(ht_capa);
 529
 530 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
 531                                  size_t count, loff_t *ppos)
 532 {
 533         char *buf, *p;
 534         struct sta_info *sta = file->private_data;
 535         struct ieee80211_sta_vht_cap *vhtc = &sta->sta.deflink.vht_cap;
 536         ssize_t ret;
 537         ssize_t bufsz = 512;
 538
 539         buf = kzalloc(bufsz, GFP_KERNEL);
 540         if (!buf)
 541                 return -ENOMEM;
 542         p = buf;
 543
 544         p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
 545                         vhtc->vht_supported ? "" : "not ");
 546         if (vhtc->vht_supported) {
 547                 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
 548                                vhtc->cap);
 549 #define PFLAG(a, b)                                                     \
 550                 do {                                                    \
 551                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 552                                 p += scnprintf(p, bufsz + buf - p, \
 553                                                "\t\t%s\n", b);          \
 554                 } while (0)
 555
 556                 switch (vhtc->cap & 0x3) {
 557                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 558                         p += scnprintf(p, bufsz + buf - p,
 559                                        "\t\tMAX-MPDU-3895\n");
 560                         break;
 561                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 562                         p += scnprintf(p, bufsz + buf - p,
 563                                        "\t\tMAX-MPDU-7991\n");
 564                         break;
 565                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 566                         p += scnprintf(p, bufsz + buf - p,
 567                                        "\t\tMAX-MPDU-11454\n");
 568                         break;
 569                 default:
 570                         p += scnprintf(p, bufsz + buf - p,
 571                                        "\t\tMAX-MPDU-UNKNOWN\n");
 572                 }
 573                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 574                 case 0:
 575                         p += scnprintf(p, bufsz + buf - p,
 576                                        "\t\t80Mhz\n");
 577                         break;
 578                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 579                         p += scnprintf(p, bufsz + buf - p,
 580                                        "\t\t160Mhz\n");
 581                         break;
 582                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 583                         p += scnprintf(p, bufsz + buf - p,
 584                                        "\t\t80+80Mhz\n");
 585                         break;
 586                 default:
 587                         p += scnprintf(p, bufsz + buf - p,
 588                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 589                                        (vhtc->cap >> 2) & 0x3);
 590                 }
 591                 PFLAG(RXLDPC, "RXLDPC");
 592                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 593                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 594                 PFLAG(TXSTBC, "TXSTBC");
 595                 p += scnprintf(p, bufsz + buf - p,
 596                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 597                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 598                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 599                 p += scnprintf(p, bufsz + buf - p,
 600                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 601                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 602                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 603                 p += scnprintf(p, bufsz + buf - p,
 604                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 605                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 606                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 607                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 608                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 609                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 610                 PFLAG(HTC_VHT, "HTC-VHT");
 611                 p += scnprintf(p, bufsz + buf - p,
 612                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 613                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 614                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 615                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 616                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 617                 p += scnprintf(p, bufsz + buf - p,
 618                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 619                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 620                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 621                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 622
 623                 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
 624                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 625                 if (vhtc->vht_mcs.rx_highest)
 626                         p += scnprintf(p, bufsz + buf - p,
 627                                        "MCS RX highest: %d Mbps\n",
 628                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 629                 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
 630                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 631                 if (vhtc->vht_mcs.tx_highest)
 632                         p += scnprintf(p, bufsz + buf - p,
 633                                        "MCS TX highest: %d Mbps\n",
 634                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 635 #undef PFLAG
 636         }
 637
 638         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 639         kfree(buf);
 640         return ret;
 641 }
 642 STA_OPS(vht_capa);
 643
 644 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 645                                 size_t count, loff_t *ppos)
 646 {
 647         char *buf, *p;
 648         size_t buf_sz = PAGE_SIZE;
 649         struct sta_info *sta = file->private_data;
 650         struct ieee80211_sta_he_cap *hec = &sta->sta.deflink.he_cap;
 651         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 652         u8 ppe_size;
 653         u8 *cap;
 654         int i;
 655         ssize_t ret;
 656
 657         buf = kmalloc(buf_sz, GFP_KERNEL);
 658         if (!buf)
 659                 return -ENOMEM;
 660         p = buf;
 661
 662         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 663                        hec->has_he ? "" : "not ");
 664         if (!hec->has_he)
 665                 goto out;
 666
 667         cap = hec->he_cap_elem.mac_cap_info;
 668         p += scnprintf(p, buf_sz + buf - p,
 669                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 670                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 671
 672 #define PRINT(fmt, ...)                                                 \
 673         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 674                        ##__VA_ARGS__)
 675
 676 #define PFLAG(t, n, a, b)                                               \
 677         do {                                                            \
 678                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 679                         PRINT("%s", b);                                 \
 680         } while (0)
 681
 682 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 683         do {                                                            \
 684                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 685                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 686                 PRINT(fmt, (s << idx) + (m * idx));                     \
 687         } while (0)
 688
 689 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 690         do {                                                            \
 691                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 692                         PRINT("%s", b);                                 \
 693                         break;                                          \
 694                 }                                                       \
 695                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 696         } while (0)
 697
 698         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 699         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 700         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 701         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 702                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 703         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 704                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 705
 706         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 707                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 708         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 709                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 710         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 711                     "MULTI-TID-AGG-RX-QOS-%d");
 712
 713         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 714                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 715                 case 0:
 716                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 717                         break;
 718                 case 1:
 719                         PRINT("LINK-ADAPTATION-RESERVED");
 720                         break;
 721                 case 2:
 722                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 723                         break;
 724                 case 3:
 725                         PRINT("LINK-ADAPTATION-BOTH");
 726                         break;
 727                 }
 728         }
 729
 730         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 731         PFLAG(MAC, 2, TRS, "TRS");
 732         PFLAG(MAC, 2, BSR, "BSR");
 733         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 734         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 735         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 736         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 737
 738         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 739         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 740
 741         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 742         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
 743                 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
 744                 break;
 745         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
 746                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
 747                 break;
 748         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
 749                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
 750                 break;
 751         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
 752                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
 753                 break;
 754         }
 755
 756         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 757         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 758         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 759
 760         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 761         PFLAG(MAC, 4, QTP, "QTP");
 762         PFLAG(MAC, 4, BQR, "BQR");
 763         PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
 764         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 765         PFLAG(MAC, 4, OPS, "OPS");
 766         PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
 767
 768         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 769
 770         PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
 771               "SUBCHAN-SELECTIVE-TRANSMISSION");
 772         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 773         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 774         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 775         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 776         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 777
 778         cap = hec->he_cap_elem.phy_cap_info;
 779         p += scnprintf(p, buf_sz + buf - p,
 780                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 781                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 782                        cap[7], cap[8], cap[9], cap[10]);
 783
 784         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 785               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 786         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 787               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 788         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 789               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 790         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 791               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 792         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 793               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 794         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 795               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 796
 797         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 798         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 799                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 800                 break;
 801         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 802                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 803                 break;
 804         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 805                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 806                 break;
 807         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 808                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 809                 break;
 810         }
 811
 812         PFLAG(PHY, 1, DEVICE_CLASS_A,
 813               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 814         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 815               "LDPC-CODING-IN-PAYLOAD");
 816         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 817               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 818         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 819
 820         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 821         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 822         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 823         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 824         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 825         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 826         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 827
 828         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 829         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 830                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 831                 break;
 832         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 833                 PRINT("DCM-MAX-CONST-TX-BPSK");
 834                 break;
 835         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 836                 PRINT("DCM-MAX-CONST-TX-QPSK");
 837                 break;
 838         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 839                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 840                 break;
 841         }
 842
 843         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 844         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 845
 846         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 847         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 848                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 849                 break;
 850         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 851                 PRINT("DCM-MAX-CONST-RX-BPSK");
 852                 break;
 853         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 854                 PRINT("DCM-MAX-CONST-RX-QPSK");
 855                 break;
 856         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 857                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 858                 break;
 859         }
 860
 861         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 862         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 863         PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
 864               "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
 865         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 866
 867         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 868         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 869
 870         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 871                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 872         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 873                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 874
 875         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 876                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 877         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 878                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 879         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 880         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 881
 882         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 883         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 884         PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
 885         PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
 886               "MU-BEAMFORMING-PARTIAL-BW-FB");
 887         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 888         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 889         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 890               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 891         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 892
 893         PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
 894         PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
 895         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 896               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 897         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 898         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 899         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 900
 901         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 902               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 903         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 904               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 905         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 906         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 907         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 908               "HE-ER-SU-1XLTF-AND-08-US-GI");
 909         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 910               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 911
 912         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 913         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 914                 PRINT("DCM-MAX-RU-242");
 915                 break;
 916         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 917                 PRINT("DCM-MAX-RU-484");
 918                 break;
 919         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 920                 PRINT("DCM-MAX-RU-996");
 921                 break;
 922         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 923                 PRINT("DCM-MAX-RU-2x996");
 924                 break;
 925         }
 926
 927         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 928               "LONGER-THAN-16-SIGB-OFDM-SYM");
 929         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 930               "NON-TRIGGERED-CQI-FEEDBACK");
 931         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 932               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 933         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 934               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 935         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 936               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 937         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 938               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 939
 940         switch (u8_get_bits(cap[9],
 941                             IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
 942         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
 943                 PRINT("NOMINAL-PACKET-PADDING-0US");
 944                 break;
 945         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
 946                 PRINT("NOMINAL-PACKET-PADDING-8US");
 947                 break;
 948         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
 949                 PRINT("NOMINAL-PACKET-PADDING-16US");
 950                 break;
 951         }
 952
 953 #undef PFLAG_RANGE_DEFAULT
 954 #undef PFLAG_RANGE
 955 #undef PFLAG
 956
 957 #define PRINT_NSS_SUPP(f, n)                                            \
 958         do {                                                            \
 959                 int _i;                                                 \
 960                 u16 v = le16_to_cpu(nss->f);                            \
 961                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 962                 for (_i = 0; _i < 8; _i += 2) {                         \
 963                         switch ((v >> _i) & 0x3) {                      \
 964                         case 0:                                         \
 965                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 966                                 break;                                  \
 967                         case 1:                                         \
 968                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 969                                 break;                                  \
 970                         case 2:                                         \
 971                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 972                                 break;                                  \
 973                         case 3:                                         \
 974                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 975                                 break;                                  \
 976                         }                                               \
 977                 }                                                       \
 978         } while (0)
 979
 980         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
 981         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
 982
 983         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
 984                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
 985                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
 986         }
 987
 988         if (cap[0] &
 989             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
 990                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
 991                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
 992         }
 993
 994 #undef PRINT_NSS_SUPP
 995 #undef PRINT
 996
 997         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
 998                 goto out;
 999
1000         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1001                        hec->ppe_thres[0]);
1002
1003         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1004         for (i = 1; i < ppe_size; i++) {
1005                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1006                                hec->ppe_thres[i]);
1007         }
1008         p += scnprintf(p, buf_sz + buf - p, "\n");
1009
1010 out:
1011         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1012         kfree(buf);
1013         return ret;
1014 }
1015 STA_OPS(he_capa);
1016
1017 #define DEBUGFS_ADD(name) \
1018         debugfs_create_file(#name, 0400, \
1019                 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1020
1021 #define DEBUGFS_ADD_COUNTER(name, field)                                \
1022         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1023
1024 void ieee80211_sta_debugfs_add(struct sta_info *sta)
1025 {
1026         struct ieee80211_local *local = sta->local;
1027         struct ieee80211_sub_if_data *sdata = sta->sdata;
1028         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1029         u8 mac[3*ETH_ALEN];
1030
1031         if (!stations_dir)
1032                 return;
1033
1034         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1035
1036         /*
1037          * This might fail due to a race condition:
1038          * When mac80211 unlinks a station, the debugfs entries
1039          * remain, but it is already possible to link a new
1040          * station with the same address which triggers adding
1041          * it to debugfs; therefore, if the old station isn't
1042          * destroyed quickly enough the old station's debugfs
1043          * dir might still be around.
1044          */
1045         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1046
1047         DEBUGFS_ADD(flags);
1048         DEBUGFS_ADD(aid);
1049         DEBUGFS_ADD(num_ps_buf_frames);
1050         DEBUGFS_ADD(last_seq_ctrl);
1051         DEBUGFS_ADD(agg_status);
1052         DEBUGFS_ADD(ht_capa);
1053         DEBUGFS_ADD(vht_capa);
1054         DEBUGFS_ADD(he_capa);
1055
1056         DEBUGFS_ADD_COUNTER(rx_duplicates, deflink.rx_stats.num_duplicates);
1057         DEBUGFS_ADD_COUNTER(rx_fragments, deflink.rx_stats.fragments);
1058         DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1059
1060         if (local->ops->wake_tx_queue) {
1061                 DEBUGFS_ADD(aqm);
1062                 DEBUGFS_ADD(airtime);
1063         }
1064
1065         if (wiphy_ext_feature_isset(local->hw.wiphy,
1066                                     NL80211_EXT_FEATURE_AQL))
1067                 DEBUGFS_ADD(aql);
1068
1069         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1070                            &sta->driver_buffered_tids);
1071
1072         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1073 }
1074
1075 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1076 {
1077         debugfs_remove_recursive(sta->debugfs_dir);
1078         sta->debugfs_dir = NULL;
1079 }