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 - 2022 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         s32 deficit[IEEE80211_NUM_ACS];
 206         ssize_t rv;
 207         int ac;
 208
 209         if (!buf)
 210                 return -ENOMEM;
 211
 212         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 213                 spin_lock_bh(&local->active_txq_lock[ac]);
 214                 rx_airtime += sta->airtime[ac].rx_airtime;
 215                 tx_airtime += sta->airtime[ac].tx_airtime;
 216                 deficit[ac] = sta->airtime[ac].deficit;
 217                 spin_unlock_bh(&local->active_txq_lock[ac]);
 218         }
 219
 220         p += scnprintf(p, bufsz + buf - p,
 221                 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
 222                 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n",
 223                 rx_airtime, tx_airtime, sta->airtime_weight,
 224                 deficit[0], deficit[1], deficit[2], deficit[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->active_txq_lock[ac]);
 240                 sta->airtime[ac].rx_airtime = 0;
 241                 sta->airtime[ac].tx_airtime = 0;
 242                 sta->airtime[ac].deficit = sta->airtime_weight;
 243                 spin_unlock_bh(&local->active_txq_lock[ac]);
 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->active_txq_lock[ac]);
 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->active_txq_lock[ac]);
 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, *p;
 318         ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
 319         int i;
 320         struct sta_info *sta = file->private_data;
 321         struct tid_ampdu_rx *tid_rx;
 322         struct tid_ampdu_tx *tid_tx;
 323         ssize_t ret;
 324
 325         buf = kzalloc(bufsz, GFP_KERNEL);
 326         if (!buf)
 327                 return -ENOMEM;
 328         p = buf;
 329
 330         rcu_read_lock();
 331
 332         p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
 333                         sta->ampdu_mlme.dialog_token_allocator + 1);
 334         p += scnprintf(p, bufsz + buf - p,
 335                        "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 336
 337         for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 338                 bool tid_rx_valid;
 339
 340                 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 341                 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 342                 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 343
 344                 p += scnprintf(p, bufsz + buf - p, "%02d", i);
 345                 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
 346                                tid_rx_valid);
 347                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 348                                tid_rx_valid ?
 349                                         sta->ampdu_mlme.tid_rx_token[i] : 0);
 350                 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
 351                                 tid_rx ? tid_rx->ssn : 0);
 352
 353                 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
 354                 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 355                                 tid_tx ? tid_tx->dialog_token : 0);
 356                 p += scnprintf(p, bufsz + buf - p, "\t%03d",
 357                                 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 358                 p += scnprintf(p, bufsz + buf - p, "\n");
 359         }
 360         rcu_read_unlock();
 361
 362         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 363         kfree(buf);
 364         return ret;
 365 }
 366
 367 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
 368                                     size_t count, loff_t *ppos)
 369 {
 370         char _buf[25] = {}, *buf = _buf;
 371         struct sta_info *sta = file->private_data;
 372         bool start, tx;
 373         unsigned long tid;
 374         char *pos;
 375         int ret, timeout = 5000;
 376
 377         if (count > sizeof(_buf))
 378                 return -EINVAL;
 379
 380         if (copy_from_user(buf, userbuf, count))
 381                 return -EFAULT;
 382
 383         buf[sizeof(_buf) - 1] = '\0';
 384         pos = buf;
 385         buf = strsep(&pos, " ");
 386         if (!buf)
 387                 return -EINVAL;
 388
 389         if (!strcmp(buf, "tx"))
 390                 tx = true;
 391         else if (!strcmp(buf, "rx"))
 392                 tx = false;
 393         else
 394                 return -EINVAL;
 395
 396         buf = strsep(&pos, " ");
 397         if (!buf)
 398                 return -EINVAL;
 399         if (!strcmp(buf, "start")) {
 400                 start = true;
 401                 if (!tx)
 402                         return -EINVAL;
 403         } else if (!strcmp(buf, "stop")) {
 404                 start = false;
 405         } else {
 406                 return -EINVAL;
 407         }
 408
 409         buf = strsep(&pos, " ");
 410         if (!buf)
 411                 return -EINVAL;
 412         if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 413                 buf = strsep(&pos, " ");
 414                 if (!buf || !tx || !start)
 415                         return -EINVAL;
 416         }
 417
 418         ret = kstrtoul(buf, 0, &tid);
 419         if (ret || tid >= IEEE80211_NUM_TIDS)
 420                 return -EINVAL;
 421
 422         if (tx) {
 423                 if (start)
 424                         ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 425                                                             timeout);
 426                 else
 427                         ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 428         } else {
 429                 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 430                                                3, true);
 431                 ret = 0;
 432         }
 433
 434         return ret ?: count;
 435 }
 436 STA_OPS_RW(agg_status);
 437
 438 /* link sta attributes */
 439 #define LINK_STA_OPS(name)                                              \
 440 static const struct file_operations link_sta_ ##name## _ops = {         \
 441         .read = link_sta_##name##_read,                                 \
 442         .open = simple_open,                                            \
 443         .llseek = generic_file_llseek,                                  \
 444 }
 445
 446 static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
 447                                   size_t count, loff_t *ppos)
 448 {
 449         struct link_sta_info *link_sta = file->private_data;
 450         u8 mac[3 * ETH_ALEN + 1];
 451
 452         snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
 453
 454         return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN);
 455 }
 456
 457 LINK_STA_OPS(addr);
 458
 459 static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
 460                                      size_t count, loff_t *ppos)
 461 {
 462 #define PRINT_HT_CAP(_cond, _str) \
 463         do { \
 464         if (_cond) \
 465                         p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
 466         } while (0)
 467         char *buf, *p;
 468         int i;
 469         ssize_t bufsz = 512;
 470         struct link_sta_info *link_sta = file->private_data;
 471         struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
 472         ssize_t ret;
 473
 474         buf = kzalloc(bufsz, GFP_KERNEL);
 475         if (!buf)
 476                 return -ENOMEM;
 477         p = buf;
 478
 479         p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
 480                         htc->ht_supported ? "" : "not ");
 481         if (htc->ht_supported) {
 482                 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
 483
 484                 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 485                 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 486                 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 487
 488                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 489                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 490                 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 491
 492                 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 493                 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 494                 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 495                 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 496
 497                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 498                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 499                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 500                 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 501
 502                 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 503
 504                 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 505                              "3839 bytes");
 506                 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 507                              "7935 bytes");
 508
 509                 /*
 510                  * For beacons and probe response this would mean the BSS
 511                  * does or does not allow the usage of DSSS/CCK HT40.
 512                  * Otherwise it means the STA does or does not use
 513                  * DSSS/CCK HT40.
 514                  */
 515                 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 516                 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 517
 518                 /* BIT(13) is reserved */
 519
 520                 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 521
 522                 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 523
 524                 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
 525                                 htc->ampdu_factor, htc->ampdu_density);
 526                 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
 527
 528                 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 529                         p += scnprintf(p, bufsz + buf - p, " %.2x",
 530                                         htc->mcs.rx_mask[i]);
 531                 p += scnprintf(p, bufsz + buf - p, "\n");
 532
 533                 /* If not set this is meaningless */
 534                 if (le16_to_cpu(htc->mcs.rx_highest)) {
 535                         p += scnprintf(p, bufsz + buf - p,
 536                                        "MCS rx highest: %d Mbps\n",
 537                                        le16_to_cpu(htc->mcs.rx_highest));
 538                 }
 539
 540                 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
 541                                 htc->mcs.tx_params);
 542         }
 543
 544         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 545         kfree(buf);
 546         return ret;
 547 }
 548 LINK_STA_OPS(ht_capa);
 549
 550 static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
 551                                       size_t count, loff_t *ppos)
 552 {
 553         char *buf, *p;
 554         struct link_sta_info *link_sta = file->private_data;
 555         struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
 556         ssize_t ret;
 557         ssize_t bufsz = 512;
 558
 559         buf = kzalloc(bufsz, GFP_KERNEL);
 560         if (!buf)
 561                 return -ENOMEM;
 562         p = buf;
 563
 564         p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
 565                         vhtc->vht_supported ? "" : "not ");
 566         if (vhtc->vht_supported) {
 567                 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
 568                                vhtc->cap);
 569 #define PFLAG(a, b)                                                     \
 570                 do {                                                    \
 571                         if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)        \
 572                                 p += scnprintf(p, bufsz + buf - p, \
 573                                                "\t\t%s\n", b);          \
 574                 } while (0)
 575
 576                 switch (vhtc->cap & 0x3) {
 577                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 578                         p += scnprintf(p, bufsz + buf - p,
 579                                        "\t\tMAX-MPDU-3895\n");
 580                         break;
 581                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 582                         p += scnprintf(p, bufsz + buf - p,
 583                                        "\t\tMAX-MPDU-7991\n");
 584                         break;
 585                 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 586                         p += scnprintf(p, bufsz + buf - p,
 587                                        "\t\tMAX-MPDU-11454\n");
 588                         break;
 589                 default:
 590                         p += scnprintf(p, bufsz + buf - p,
 591                                        "\t\tMAX-MPDU-UNKNOWN\n");
 592                 }
 593                 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 594                 case 0:
 595                         p += scnprintf(p, bufsz + buf - p,
 596                                        "\t\t80Mhz\n");
 597                         break;
 598                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 599                         p += scnprintf(p, bufsz + buf - p,
 600                                        "\t\t160Mhz\n");
 601                         break;
 602                 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 603                         p += scnprintf(p, bufsz + buf - p,
 604                                        "\t\t80+80Mhz\n");
 605                         break;
 606                 default:
 607                         p += scnprintf(p, bufsz + buf - p,
 608                                        "\t\tUNKNOWN-MHZ: 0x%x\n",
 609                                        (vhtc->cap >> 2) & 0x3);
 610                 }
 611                 PFLAG(RXLDPC, "RXLDPC");
 612                 PFLAG(SHORT_GI_80, "SHORT-GI-80");
 613                 PFLAG(SHORT_GI_160, "SHORT-GI-160");
 614                 PFLAG(TXSTBC, "TXSTBC");
 615                 p += scnprintf(p, bufsz + buf - p,
 616                                "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 617                 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 618                 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 619                 p += scnprintf(p, bufsz + buf - p,
 620                         "\t\tBEAMFORMEE-STS: 0x%x\n",
 621                         (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 622                         IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 623                 p += scnprintf(p, bufsz + buf - p,
 624                         "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 625                         (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 626                         >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 627                 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 628                 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 629                 PFLAG(VHT_TXOP_PS, "TXOP-PS");
 630                 PFLAG(HTC_VHT, "HTC-VHT");
 631                 p += scnprintf(p, bufsz + buf - p,
 632                         "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 633                         (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 634                         IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 635                 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 636                       "LINK-ADAPTATION-VHT-UNSOL-MFB");
 637                 p += scnprintf(p, bufsz + buf - p,
 638                         "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 639                         (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 640                 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 641                 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 642
 643                 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
 644                                le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 645                 if (vhtc->vht_mcs.rx_highest)
 646                         p += scnprintf(p, bufsz + buf - p,
 647                                        "MCS RX highest: %d Mbps\n",
 648                                        le16_to_cpu(vhtc->vht_mcs.rx_highest));
 649                 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
 650                                le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 651                 if (vhtc->vht_mcs.tx_highest)
 652                         p += scnprintf(p, bufsz + buf - p,
 653                                        "MCS TX highest: %d Mbps\n",
 654                                        le16_to_cpu(vhtc->vht_mcs.tx_highest));
 655 #undef PFLAG
 656         }
 657
 658         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 659         kfree(buf);
 660         return ret;
 661 }
 662 LINK_STA_OPS(vht_capa);
 663
 664 static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
 665                                      size_t count, loff_t *ppos)
 666 {
 667         char *buf, *p;
 668         size_t buf_sz = PAGE_SIZE;
 669         struct link_sta_info *link_sta = file->private_data;
 670         struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
 671         struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 672         u8 ppe_size;
 673         u8 *cap;
 674         int i;
 675         ssize_t ret;
 676
 677         buf = kmalloc(buf_sz, GFP_KERNEL);
 678         if (!buf)
 679                 return -ENOMEM;
 680         p = buf;
 681
 682         p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 683                        hec->has_he ? "" : "not ");
 684         if (!hec->has_he)
 685                 goto out;
 686
 687         cap = hec->he_cap_elem.mac_cap_info;
 688         p += scnprintf(p, buf_sz + buf - p,
 689                        "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 690                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 691
 692 #define PRINT(fmt, ...)                                                 \
 693         p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",            \
 694                        ##__VA_ARGS__)
 695
 696 #define PFLAG(t, n, a, b)                                               \
 697         do {                                                            \
 698                 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)           \
 699                         PRINT("%s", b);                                 \
 700         } while (0)
 701
 702 #define PFLAG_RANGE(t, i, n, s, m, off, fmt)                            \
 703         do {                                                            \
 704                 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;        \
 705                 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;      \
 706                 PRINT(fmt, (s << idx) + (m * idx));                     \
 707         } while (0)
 708
 709 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)              \
 710         do {                                                            \
 711                 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
 712                         PRINT("%s", b);                                 \
 713                         break;                                          \
 714                 }                                                       \
 715                 PFLAG_RANGE(t, i, n, s, m, off, fmt);                   \
 716         } while (0)
 717
 718         PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 719         PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 720         PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 721         PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 722                             "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 723         PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 724                             "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 725
 726         PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 727                             "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 728         PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 729                             "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 730         PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 731                     "MULTI-TID-AGG-RX-QOS-%d");
 732
 733         if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 734                 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 735                 case 0:
 736                         PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 737                         break;
 738                 case 1:
 739                         PRINT("LINK-ADAPTATION-RESERVED");
 740                         break;
 741                 case 2:
 742                         PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 743                         break;
 744                 case 3:
 745                         PRINT("LINK-ADAPTATION-BOTH");
 746                         break;
 747                 }
 748         }
 749
 750         PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 751         PFLAG(MAC, 2, TRS, "TRS");
 752         PFLAG(MAC, 2, BSR, "BSR");
 753         PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 754         PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 755         PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 756         PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 757
 758         PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 759         PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 760
 761         switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 762         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
 763                 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
 764                 break;
 765         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
 766                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
 767                 break;
 768         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
 769                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
 770                 break;
 771         case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
 772                 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
 773                 break;
 774         }
 775
 776         PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 777         PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 778         PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 779
 780         PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 781         PFLAG(MAC, 4, QTP, "QTP");
 782         PFLAG(MAC, 4, BQR, "BQR");
 783         PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
 784         PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 785         PFLAG(MAC, 4, OPS, "OPS");
 786         PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
 787
 788         PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 789
 790         PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
 791               "SUBCHAN-SELECTIVE-TRANSMISSION");
 792         PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 793         PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 794         PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 795         PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 796         PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 797
 798         cap = hec->he_cap_elem.phy_cap_info;
 799         p += scnprintf(p, buf_sz + buf - p,
 800                        "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 801                        cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 802                        cap[7], cap[8], cap[9], cap[10]);
 803
 804         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 805               "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 806         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 807               "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 808         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 809               "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 810         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 811               "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 812         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 813               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 814         PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 815               "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 816
 817         switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 818         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 819                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 820                 break;
 821         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 822                 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 823                 break;
 824         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 825                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 826                 break;
 827         case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 828                 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 829                 break;
 830         }
 831
 832         PFLAG(PHY, 1, DEVICE_CLASS_A,
 833               "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 834         PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 835               "LDPC-CODING-IN-PAYLOAD");
 836         PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 837               "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 838         PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 839
 840         PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 841         PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 842         PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 843         PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 844         PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 845         PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 846         PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 847
 848         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 849         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 850                 PRINT("DCM-MAX-CONST-TX-NO-DCM");
 851                 break;
 852         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 853                 PRINT("DCM-MAX-CONST-TX-BPSK");
 854                 break;
 855         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 856                 PRINT("DCM-MAX-CONST-TX-QPSK");
 857                 break;
 858         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 859                 PRINT("DCM-MAX-CONST-TX-16-QAM");
 860                 break;
 861         }
 862
 863         PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 864         PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 865
 866         switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 867         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 868                 PRINT("DCM-MAX-CONST-RX-NO-DCM");
 869                 break;
 870         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 871                 PRINT("DCM-MAX-CONST-RX-BPSK");
 872                 break;
 873         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 874                 PRINT("DCM-MAX-CONST-RX-QPSK");
 875                 break;
 876         case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 877                 PRINT("DCM-MAX-CONST-RX-16-QAM");
 878                 break;
 879         }
 880
 881         PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 882         PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 883         PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
 884               "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
 885         PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 886
 887         PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 888         PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 889
 890         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 891                     "BEAMFORMEE-MAX-STS-UNDER-%d");
 892         PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 893                     "BEAMFORMEE-MAX-STS-ABOVE-%d");
 894
 895         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 896                     "NUM-SND-DIM-UNDER-80MHZ-%d");
 897         PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 898                     "NUM-SND-DIM-ABOVE-80MHZ-%d");
 899         PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 900         PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 901
 902         PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 903         PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 904         PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
 905         PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
 906               "MU-BEAMFORMING-PARTIAL-BW-FB");
 907         PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 908         PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 909         PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 910               "PARTIAL-BANDWIDTH-DL-MUMIMO");
 911         PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 912
 913         PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
 914         PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
 915         PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 916               "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 917         PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 918         PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 919         PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 920
 921         PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 922               "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 923         PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 924               "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 925         PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 926         PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 927         PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 928               "HE-ER-SU-1XLTF-AND-08-US-GI");
 929         PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 930               "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 931
 932         switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 933         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 934                 PRINT("DCM-MAX-RU-242");
 935                 break;
 936         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 937                 PRINT("DCM-MAX-RU-484");
 938                 break;
 939         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 940                 PRINT("DCM-MAX-RU-996");
 941                 break;
 942         case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 943                 PRINT("DCM-MAX-RU-2x996");
 944                 break;
 945         }
 946
 947         PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 948               "LONGER-THAN-16-SIGB-OFDM-SYM");
 949         PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 950               "NON-TRIGGERED-CQI-FEEDBACK");
 951         PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 952               "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 953         PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 954               "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 955         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 956               "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 957         PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 958               "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 959
 960         switch (u8_get_bits(cap[9],
 961                             IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
 962         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
 963                 PRINT("NOMINAL-PACKET-PADDING-0US");
 964                 break;
 965         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
 966                 PRINT("NOMINAL-PACKET-PADDING-8US");
 967                 break;
 968         case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
 969                 PRINT("NOMINAL-PACKET-PADDING-16US");
 970                 break;
 971         }
 972
 973 #undef PFLAG_RANGE_DEFAULT
 974 #undef PFLAG_RANGE
 975 #undef PFLAG
 976
 977 #define PRINT_NSS_SUPP(f, n)                                            \
 978         do {                                                            \
 979                 int _i;                                                 \
 980                 u16 v = le16_to_cpu(nss->f);                            \
 981                 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);  \
 982                 for (_i = 0; _i < 8; _i += 2) {                         \
 983                         switch ((v >> _i) & 0x3) {                      \
 984                         case 0:                                         \
 985                                 PRINT(n "-%d-SUPPORT-0-7", _i / 2);     \
 986                                 break;                                  \
 987                         case 1:                                         \
 988                                 PRINT(n "-%d-SUPPORT-0-9", _i / 2);     \
 989                                 break;                                  \
 990                         case 2:                                         \
 991                                 PRINT(n "-%d-SUPPORT-0-11", _i / 2);    \
 992                                 break;                                  \
 993                         case 3:                                         \
 994                                 PRINT(n "-%d-NOT-SUPPORTED", _i / 2);   \
 995                                 break;                                  \
 996                         }                                               \
 997                 }                                                       \
 998         } while (0)
 999
1000         PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1001         PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1002
1003         if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1004                 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1005                 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1006         }
1007
1008         if (cap[0] &
1009             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1010                 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1011                 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1012         }
1013
1014 #undef PRINT_NSS_SUPP
1015 #undef PRINT
1016
1017         if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1018                 goto out;
1019
1020         p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1021                        hec->ppe_thres[0]);
1022
1023         ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1024         for (i = 1; i < ppe_size; i++) {
1025                 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1026                                hec->ppe_thres[i]);
1027         }
1028         p += scnprintf(p, buf_sz + buf - p, "\n");
1029
1030 out:
1031         ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1032         kfree(buf);
1033         return ret;
1034 }
1035 LINK_STA_OPS(he_capa);
1036
1037 #define DEBUGFS_ADD(name) \
1038         debugfs_create_file(#name, 0400, \
1039                 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1040
1041 #define DEBUGFS_ADD_COUNTER(name, field)                                \
1042         debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1043
1044 void ieee80211_sta_debugfs_add(struct sta_info *sta)
1045 {
1046         struct ieee80211_local *local = sta->local;
1047         struct ieee80211_sub_if_data *sdata = sta->sdata;
1048         struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1049         u8 mac[3*ETH_ALEN];
1050
1051         if (!stations_dir)
1052                 return;
1053
1054         snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1055
1056         /*
1057          * This might fail due to a race condition:
1058          * When mac80211 unlinks a station, the debugfs entries
1059          * remain, but it is already possible to link a new
1060          * station with the same address which triggers adding
1061          * it to debugfs; therefore, if the old station isn't
1062          * destroyed quickly enough the old station's debugfs
1063          * dir might still be around.
1064          */
1065         sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1066
1067         DEBUGFS_ADD(flags);
1068         DEBUGFS_ADD(aid);
1069         DEBUGFS_ADD(num_ps_buf_frames);
1070         DEBUGFS_ADD(last_seq_ctrl);
1071         DEBUGFS_ADD(agg_status);
1072         /* FIXME: Kept here as the statistics are only done on the deflink */
1073         DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1074
1075         DEBUGFS_ADD(aqm);
1076         DEBUGFS_ADD(airtime);
1077
1078         if (wiphy_ext_feature_isset(local->hw.wiphy,
1079                                     NL80211_EXT_FEATURE_AQL))
1080                 DEBUGFS_ADD(aql);
1081
1082         debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1083                            &sta->driver_buffered_tids);
1084
1085         drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1086 }
1087
1088 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1089 {
1090         debugfs_remove_recursive(sta->debugfs_dir);
1091         sta->debugfs_dir = NULL;
1092 }
1093
1094 #undef DEBUGFS_ADD
1095 #undef DEBUGFS_ADD_COUNTER
1096
1097 #define DEBUGFS_ADD(name) \
1098         debugfs_create_file(#name, 0400, \
1099                 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1100 #define DEBUGFS_ADD_COUNTER(name, field)                                \
1101         debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1102
1103 void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1104 {
1105         if (WARN_ON(!link_sta->sta->debugfs_dir))
1106                 return;
1107
1108         /* For non-MLO, leave the files in the main directory. */
1109         if (link_sta->sta->sta.valid_links) {
1110                 char link_dir_name[10];
1111
1112                 snprintf(link_dir_name, sizeof(link_dir_name),
1113                          "link-%d", link_sta->link_id);
1114
1115                 link_sta->debugfs_dir =
1116                         debugfs_create_dir(link_dir_name,
1117                                            link_sta->sta->debugfs_dir);
1118
1119                 DEBUGFS_ADD(addr);
1120         } else {
1121                 if (WARN_ON(link_sta != &link_sta->sta->deflink))
1122                         return;
1123
1124                 link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1125         }
1126
1127         DEBUGFS_ADD(ht_capa);
1128         DEBUGFS_ADD(vht_capa);
1129         DEBUGFS_ADD(he_capa);
1130
1131         DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1132         DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1133 }
1134
1135 void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1136 {
1137         if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1138                 link_sta->debugfs_dir = NULL;
1139                 return;
1140         }
1141
1142         if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1143                 WARN_ON(link_sta != &link_sta->sta->deflink);
1144                 link_sta->sta->debugfs_dir = NULL;
1145                 return;
1146         }
1147
1148         debugfs_remove_recursive(link_sta->debugfs_dir);
1149         link_sta->debugfs_dir = NULL;
1150 }
1151
1152 void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1153 {
1154         if (WARN_ON(!link_sta->debugfs_dir))
1155                 return;
1156
1157         drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1158                                  link_sta->pub, link_sta->debugfs_dir);
1159 }
1160
1161 void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1162 {
1163         if (!link_sta->debugfs_dir)
1164                 return;
1165
1166         if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1167                 return;
1168
1169         /* Recreate the directory excluding the driver data */
1170         debugfs_remove_recursive(link_sta->debugfs_dir);
1171         link_sta->debugfs_dir = NULL;
1172
1173         ieee80211_link_sta_debugfs_add(link_sta);
1174 }