net/mac80211/debugfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * mac80211 debugfs for wireless PHYs
   4  *
   5  * Copyright 2007       Johannes Berg <[email protected]>
   6  * Copyright 2013-2014  Intel Mobile Communications GmbH
   7  * Copyright (C) 2018 - 2019 Intel Corporation
   8  */
   9
  10 #include <linux/debugfs.h>
  11 #include <linux/rtnetlink.h>
  12 #include <linux/vmalloc.h>
  13 #include "ieee80211_i.h"
  14 #include "driver-ops.h"
  15 #include "rate.h"
  16 #include "debugfs.h"
  17
  18 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
  19
  20 int mac80211_format_buffer(char __user *userbuf, size_t count,
  21                                   loff_t *ppos, char *fmt, ...)
  22 {
  23         va_list args;
  24         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
  25         int res;
  26
  27         va_start(args, fmt);
  28         res = vscnprintf(buf, sizeof(buf), fmt, args);
  29         va_end(args);
  30
  31         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  32 }
  33
  34 #define DEBUGFS_READONLY_FILE_FN(name, fmt, value...)                   \
  35 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  36                             size_t count, loff_t *ppos)                 \
  37 {                                                                       \
  38         struct ieee80211_local *local = file->private_data;             \
  39                                                                         \
  40         return mac80211_format_buffer(userbuf, count, ppos,             \
  41                                       fmt "\n", ##value);               \
  42 }
  43
  44 #define DEBUGFS_READONLY_FILE_OPS(name)                 \
  45 static const struct file_operations name## _ops = {                     \
  46         .read = name## _read,                                           \
  47         .open = simple_open,                                            \
  48         .llseek = generic_file_llseek,                                  \
  49 };
  50
  51 #define DEBUGFS_READONLY_FILE(name, fmt, value...)              \
  52         DEBUGFS_READONLY_FILE_FN(name, fmt, value)              \
  53         DEBUGFS_READONLY_FILE_OPS(name)
  54
  55 #define DEBUGFS_ADD(name)                                               \
  56         debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
  57
  58 #define DEBUGFS_ADD_MODE(name, mode)                                    \
  59         debugfs_create_file(#name, mode, phyd, local, &name## _ops);
  60
  61
  62 DEBUGFS_READONLY_FILE(hw_conf, "%x",
  63                       local->hw.conf.flags);
  64 DEBUGFS_READONLY_FILE(user_power, "%d",
  65                       local->user_power_level);
  66 DEBUGFS_READONLY_FILE(power, "%d",
  67                       local->hw.conf.power_level);
  68 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
  69                       local->total_ps_buffered);
  70 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
  71                       local->wep_iv & 0xffffff);
  72 DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
  73         local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
  74
  75 static ssize_t aqm_read(struct file *file,
  76                         char __user *user_buf,
  77                         size_t count,
  78                         loff_t *ppos)
  79 {
  80         struct ieee80211_local *local = file->private_data;
  81         struct fq *fq = &local->fq;
  82         char buf[200];
  83         int len = 0;
  84
  85         spin_lock_bh(&local->fq.lock);
  86         rcu_read_lock();
  87
  88         len = scnprintf(buf, sizeof(buf),
  89                         "access name value\n"
  90                         "R fq_flows_cnt %u\n"
  91                         "R fq_backlog %u\n"
  92                         "R fq_overlimit %u\n"
  93                         "R fq_overmemory %u\n"
  94                         "R fq_collisions %u\n"
  95                         "R fq_memory_usage %u\n"
  96                         "RW fq_memory_limit %u\n"
  97                         "RW fq_limit %u\n"
  98                         "RW fq_quantum %u\n",
  99                         fq->flows_cnt,
 100                         fq->backlog,
 101                         fq->overmemory,
 102                         fq->overlimit,
 103                         fq->collisions,
 104                         fq->memory_usage,
 105                         fq->memory_limit,
 106                         fq->limit,
 107                         fq->quantum);
 108
 109         rcu_read_unlock();
 110         spin_unlock_bh(&local->fq.lock);
 111
 112         return simple_read_from_buffer(user_buf, count, ppos,
 113                                        buf, len);
 114 }
 115
 116 static ssize_t aqm_write(struct file *file,
 117                          const char __user *user_buf,
 118                          size_t count,
 119                          loff_t *ppos)
 120 {
 121         struct ieee80211_local *local = file->private_data;
 122         char buf[100];
 123
 124         if (count >= sizeof(buf))
 125                 return -EINVAL;
 126
 127         if (copy_from_user(buf, user_buf, count))
 128                 return -EFAULT;
 129
 130         if (count && buf[count - 1] == '\n')
 131                 buf[count - 1] = '\0';
 132         else
 133                 buf[count] = '\0';
 134
 135         if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
 136                 return count;
 137         else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
 138                 return count;
 139         else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
 140                 return count;
 141
 142         return -EINVAL;
 143 }
 144
 145 static const struct file_operations aqm_ops = {
 146         .write = aqm_write,
 147         .read = aqm_read,
 148         .open = simple_open,
 149         .llseek = default_llseek,
 150 };
 151
 152 static ssize_t airtime_flags_read(struct file *file,
 153                                   char __user *user_buf,
 154                                   size_t count, loff_t *ppos)
 155 {
 156         struct ieee80211_local *local = file->private_data;
 157         char buf[128] = {}, *pos, *end;
 158
 159         pos = buf;
 160         end = pos + sizeof(buf) - 1;
 161
 162         if (local->airtime_flags & AIRTIME_USE_TX)
 163                 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
 164                                  AIRTIME_USE_TX);
 165         if (local->airtime_flags & AIRTIME_USE_RX)
 166                 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
 167                                  AIRTIME_USE_RX);
 168
 169         return simple_read_from_buffer(user_buf, count, ppos, buf,
 170                                        strlen(buf));
 171 }
 172
 173 static ssize_t airtime_flags_write(struct file *file,
 174                                    const char __user *user_buf,
 175                                    size_t count, loff_t *ppos)
 176 {
 177         struct ieee80211_local *local = file->private_data;
 178         char buf[16];
 179
 180         if (count >= sizeof(buf))
 181                 return -EINVAL;
 182
 183         if (copy_from_user(buf, user_buf, count))
 184                 return -EFAULT;
 185
 186         if (count && buf[count - 1] == '\n')
 187                 buf[count - 1] = '\0';
 188         else
 189                 buf[count] = '\0';
 190
 191         if (kstrtou16(buf, 0, &local->airtime_flags))
 192                 return -EINVAL;
 193
 194         return count;
 195 }
 196
 197 static const struct file_operations airtime_flags_ops = {
 198         .write = airtime_flags_write,
 199         .read = airtime_flags_read,
 200         .open = simple_open,
 201         .llseek = default_llseek,
 202 };
 203
 204 static ssize_t aql_txq_limit_read(struct file *file,
 205                                   char __user *user_buf,
 206                                   size_t count,
 207                                   loff_t *ppos)
 208 {
 209         struct ieee80211_local *local = file->private_data;
 210         char buf[400];
 211         int len = 0;
 212
 213         len = scnprintf(buf, sizeof(buf),
 214                         "AC     AQL limit low   AQL limit high\n"
 215                         "VO     %u              %u\n"
 216                         "VI     %u              %u\n"
 217                         "BE     %u              %u\n"
 218                         "BK     %u              %u\n",
 219                         local->aql_txq_limit_low[IEEE80211_AC_VO],
 220                         local->aql_txq_limit_high[IEEE80211_AC_VO],
 221                         local->aql_txq_limit_low[IEEE80211_AC_VI],
 222                         local->aql_txq_limit_high[IEEE80211_AC_VI],
 223                         local->aql_txq_limit_low[IEEE80211_AC_BE],
 224                         local->aql_txq_limit_high[IEEE80211_AC_BE],
 225                         local->aql_txq_limit_low[IEEE80211_AC_BK],
 226                         local->aql_txq_limit_high[IEEE80211_AC_BK]);
 227         return simple_read_from_buffer(user_buf, count, ppos,
 228                                        buf, len);
 229 }
 230
 231 static ssize_t aql_txq_limit_write(struct file *file,
 232                                    const char __user *user_buf,
 233                                    size_t count,
 234                                    loff_t *ppos)
 235 {
 236         struct ieee80211_local *local = file->private_data;
 237         char buf[100];
 238         u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
 239         struct sta_info *sta;
 240
 241         if (count >= sizeof(buf))
 242                 return -EINVAL;
 243
 244         if (copy_from_user(buf, user_buf, count))
 245                 return -EFAULT;
 246
 247         if (count && buf[count - 1] == '\n')
 248                 buf[count - 1] = '\0';
 249         else
 250                 buf[count] = '\0';
 251
 252         if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
 253                 return -EINVAL;
 254
 255         if (ac >= IEEE80211_NUM_ACS)
 256                 return -EINVAL;
 257
 258         q_limit_low_old = local->aql_txq_limit_low[ac];
 259         q_limit_high_old = local->aql_txq_limit_high[ac];
 260
 261         local->aql_txq_limit_low[ac] = q_limit_low;
 262         local->aql_txq_limit_high[ac] = q_limit_high;
 263
 264         mutex_lock(&local->sta_mtx);
 265         list_for_each_entry(sta, &local->sta_list, list) {
 266                 /* If a sta has customized queue limits, keep it */
 267                 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
 268                     sta->airtime[ac].aql_limit_high == q_limit_high_old) {
 269                         sta->airtime[ac].aql_limit_low = q_limit_low;
 270                         sta->airtime[ac].aql_limit_high = q_limit_high;
 271                 }
 272         }
 273         mutex_unlock(&local->sta_mtx);
 274         return count;
 275 }
 276
 277 static const struct file_operations aql_txq_limit_ops = {
 278         .write = aql_txq_limit_write,
 279         .read = aql_txq_limit_read,
 280         .open = simple_open,
 281         .llseek = default_llseek,
 282 };
 283
 284 static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
 285                                size_t count, loff_t *ppos)
 286 {
 287         char buf[3];
 288         int len;
 289
 290         len = scnprintf(buf, sizeof(buf), "%d\n",
 291                         !static_key_false(&aql_disable.key));
 292
 293         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 294 }
 295
 296 static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
 297                                 size_t count, loff_t *ppos)
 298 {
 299         bool aql_disabled = static_key_false(&aql_disable.key);
 300         char buf[3];
 301         size_t len;
 302
 303         if (count > sizeof(buf))
 304                 return -EINVAL;
 305
 306         if (copy_from_user(buf, user_buf, count))
 307                 return -EFAULT;
 308
 309         buf[sizeof(buf) - 1] = '\0';
 310         len = strlen(buf);
 311         if (len > 0 && buf[len - 1] == '\n')
 312                 buf[len - 1] = 0;
 313
 314         if (buf[0] == '0' && buf[1] == '\0') {
 315                 if (!aql_disabled)
 316                         static_branch_inc(&aql_disable);
 317         } else if (buf[0] == '1' && buf[1] == '\0') {
 318                 if (aql_disabled)
 319                         static_branch_dec(&aql_disable);
 320         } else {
 321                 return -EINVAL;
 322         }
 323
 324         return count;
 325 }
 326
 327 static const struct file_operations aql_enable_ops = {
 328         .write = aql_enable_write,
 329         .read = aql_enable_read,
 330         .open = simple_open,
 331         .llseek = default_llseek,
 332 };
 333
 334 static ssize_t force_tx_status_read(struct file *file,
 335                                     char __user *user_buf,
 336                                     size_t count,
 337                                     loff_t *ppos)
 338 {
 339         struct ieee80211_local *local = file->private_data;
 340         char buf[3];
 341         int len = 0;
 342
 343         len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
 344
 345         return simple_read_from_buffer(user_buf, count, ppos,
 346                                        buf, len);
 347 }
 348
 349 static ssize_t force_tx_status_write(struct file *file,
 350                                      const char __user *user_buf,
 351                                      size_t count,
 352                                      loff_t *ppos)
 353 {
 354         struct ieee80211_local *local = file->private_data;
 355         char buf[3];
 356
 357         if (count >= sizeof(buf))
 358                 return -EINVAL;
 359
 360         if (copy_from_user(buf, user_buf, count))
 361                 return -EFAULT;
 362
 363         if (count && buf[count - 1] == '\n')
 364                 buf[count - 1] = '\0';
 365         else
 366                 buf[count] = '\0';
 367
 368         if (buf[0] == '0' && buf[1] == '\0')
 369                 local->force_tx_status = 0;
 370         else if (buf[0] == '1' && buf[1] == '\0')
 371                 local->force_tx_status = 1;
 372         else
 373                 return -EINVAL;
 374
 375         return count;
 376 }
 377
 378 static const struct file_operations force_tx_status_ops = {
 379         .write = force_tx_status_write,
 380         .read = force_tx_status_read,
 381         .open = simple_open,
 382         .llseek = default_llseek,
 383 };
 384
 385 #ifdef CONFIG_PM
 386 static ssize_t reset_write(struct file *file, const char __user *user_buf,
 387                            size_t count, loff_t *ppos)
 388 {
 389         struct ieee80211_local *local = file->private_data;
 390
 391         rtnl_lock();
 392         __ieee80211_suspend(&local->hw, NULL);
 393         __ieee80211_resume(&local->hw);
 394         rtnl_unlock();
 395
 396         return count;
 397 }
 398
 399 static const struct file_operations reset_ops = {
 400         .write = reset_write,
 401         .open = simple_open,
 402         .llseek = noop_llseek,
 403 };
 404 #endif
 405
 406 static const char *hw_flag_names[] = {
 407 #define FLAG(F) [IEEE80211_HW_##F] = #F
 408         FLAG(HAS_RATE_CONTROL),
 409         FLAG(RX_INCLUDES_FCS),
 410         FLAG(HOST_BROADCAST_PS_BUFFERING),
 411         FLAG(SIGNAL_UNSPEC),
 412         FLAG(SIGNAL_DBM),
 413         FLAG(NEED_DTIM_BEFORE_ASSOC),
 414         FLAG(SPECTRUM_MGMT),
 415         FLAG(AMPDU_AGGREGATION),
 416         FLAG(SUPPORTS_PS),
 417         FLAG(PS_NULLFUNC_STACK),
 418         FLAG(SUPPORTS_DYNAMIC_PS),
 419         FLAG(MFP_CAPABLE),
 420         FLAG(WANT_MONITOR_VIF),
 421         FLAG(NO_AUTO_VIF),
 422         FLAG(SW_CRYPTO_CONTROL),
 423         FLAG(SUPPORT_FAST_XMIT),
 424         FLAG(REPORTS_TX_ACK_STATUS),
 425         FLAG(CONNECTION_MONITOR),
 426         FLAG(QUEUE_CONTROL),
 427         FLAG(SUPPORTS_PER_STA_GTK),
 428         FLAG(AP_LINK_PS),
 429         FLAG(TX_AMPDU_SETUP_IN_HW),
 430         FLAG(SUPPORTS_RC_TABLE),
 431         FLAG(P2P_DEV_ADDR_FOR_INTF),
 432         FLAG(TIMING_BEACON_ONLY),
 433         FLAG(SUPPORTS_HT_CCK_RATES),
 434         FLAG(CHANCTX_STA_CSA),
 435         FLAG(SUPPORTS_CLONED_SKBS),
 436         FLAG(SINGLE_SCAN_ON_ALL_BANDS),
 437         FLAG(TDLS_WIDER_BW),
 438         FLAG(SUPPORTS_AMSDU_IN_AMPDU),
 439         FLAG(BEACON_TX_STATUS),
 440         FLAG(NEEDS_UNIQUE_STA_ADDR),
 441         FLAG(SUPPORTS_REORDERING_BUFFER),
 442         FLAG(USES_RSS),
 443         FLAG(TX_AMSDU),
 444         FLAG(TX_FRAG_LIST),
 445         FLAG(REPORTS_LOW_ACK),
 446         FLAG(SUPPORTS_TX_FRAG),
 447         FLAG(SUPPORTS_TDLS_BUFFER_STA),
 448         FLAG(DEAUTH_NEED_MGD_TX_PREP),
 449         FLAG(DOESNT_SUPPORT_QOS_NDP),
 450         FLAG(BUFF_MMPDU_TXQ),
 451         FLAG(SUPPORTS_VHT_EXT_NSS_BW),
 452         FLAG(STA_MMPDU_TXQ),
 453         FLAG(TX_STATUS_NO_AMPDU_LEN),
 454         FLAG(SUPPORTS_MULTI_BSSID),
 455         FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
 456         FLAG(AMPDU_KEYBORDER_SUPPORT),
 457         FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
 458         FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
 459 #undef FLAG
 460 };
 461
 462 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
 463                             size_t count, loff_t *ppos)
 464 {
 465         struct ieee80211_local *local = file->private_data;
 466         size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
 467         char *buf = kzalloc(bufsz, GFP_KERNEL);
 468         char *pos = buf, *end = buf + bufsz - 1;
 469         ssize_t rv;
 470         int i;
 471
 472         if (!buf)
 473                 return -ENOMEM;
 474
 475         /* fail compilation if somebody adds or removes
 476          * a flag without updating the name array above
 477          */
 478         BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
 479
 480         for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
 481                 if (test_bit(i, local->hw.flags))
 482                         pos += scnprintf(pos, end - pos, "%s\n",
 483                                          hw_flag_names[i]);
 484         }
 485
 486         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 487         kfree(buf);
 488         return rv;
 489 }
 490
 491 static ssize_t misc_read(struct file *file, char __user *user_buf,
 492                          size_t count, loff_t *ppos)
 493 {
 494         struct ieee80211_local *local = file->private_data;
 495         /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
 496         size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
 497         char *buf;
 498         char *pos, *end;
 499         ssize_t rv;
 500         int i;
 501         int ln;
 502
 503         buf = kzalloc(bufsz, GFP_KERNEL);
 504         if (!buf)
 505                 return -ENOMEM;
 506
 507         pos = buf;
 508         end = buf + bufsz - 1;
 509
 510         pos += scnprintf(pos, end - pos, "pending:\n");
 511
 512         for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
 513                 ln = skb_queue_len(&local->pending[i]);
 514                 pos += scnprintf(pos, end - pos, "[%i] %d\n",
 515                                  i, ln);
 516         }
 517
 518         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 519         kfree(buf);
 520         return rv;
 521 }
 522
 523 static ssize_t queues_read(struct file *file, char __user *user_buf,
 524                            size_t count, loff_t *ppos)
 525 {
 526         struct ieee80211_local *local = file->private_data;
 527         unsigned long flags;
 528         char buf[IEEE80211_MAX_QUEUES * 20];
 529         int q, res = 0;
 530
 531         spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 532         for (q = 0; q < local->hw.queues; q++)
 533                 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
 534                                 local->queue_stop_reasons[q],
 535                                 skb_queue_len(&local->pending[q]));
 536         spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 537
 538         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 539 }
 540
 541 DEBUGFS_READONLY_FILE_OPS(hwflags);
 542 DEBUGFS_READONLY_FILE_OPS(queues);
 543 DEBUGFS_READONLY_FILE_OPS(misc);
 544
 545 /* statistics stuff */
 546
 547 static ssize_t format_devstat_counter(struct ieee80211_local *local,
 548         char __user *userbuf,
 549         size_t count, loff_t *ppos,
 550         int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
 551                           int buflen))
 552 {
 553         struct ieee80211_low_level_stats stats;
 554         char buf[20];
 555         int res;
 556
 557         rtnl_lock();
 558         res = drv_get_stats(local, &stats);
 559         rtnl_unlock();
 560         if (res)
 561                 return res;
 562         res = printvalue(&stats, buf, sizeof(buf));
 563         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 564 }
 565
 566 #define DEBUGFS_DEVSTATS_FILE(name)                                     \
 567 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
 568                                  char *buf, int buflen)                 \
 569 {                                                                       \
 570         return scnprintf(buf, buflen, "%u\n", stats->name);             \
 571 }                                                                       \
 572 static ssize_t stats_ ##name## _read(struct file *file,                 \
 573                                      char __user *userbuf,              \
 574                                      size_t count, loff_t *ppos)        \
 575 {                                                                       \
 576         return format_devstat_counter(file->private_data,               \
 577                                       userbuf,                          \
 578                                       count,                            \
 579                                       ppos,                             \
 580                                       print_devstats_##name);           \
 581 }                                                                       \
 582                                                                         \
 583 static const struct file_operations stats_ ##name## _ops = {            \
 584         .read = stats_ ##name## _read,                                  \
 585         .open = simple_open,                                            \
 586         .llseek = generic_file_llseek,                                  \
 587 };
 588
 589 #define DEBUGFS_STATS_ADD(name)                                 \
 590         debugfs_create_u32(#name, 0400, statsd, &local->name);
 591 #define DEBUGFS_DEVSTATS_ADD(name)                                      \
 592         debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
 593
 594 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
 595 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
 596 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
 597 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
 598
 599 void debugfs_hw_add(struct ieee80211_local *local)
 600 {
 601         struct dentry *phyd = local->hw.wiphy->debugfsdir;
 602         struct dentry *statsd;
 603
 604         if (!phyd)
 605                 return;
 606
 607         local->debugfs.keys = debugfs_create_dir("keys", phyd);
 608
 609         DEBUGFS_ADD(total_ps_buffered);
 610         DEBUGFS_ADD(wep_iv);
 611         DEBUGFS_ADD(rate_ctrl_alg);
 612         DEBUGFS_ADD(queues);
 613         DEBUGFS_ADD(misc);
 614 #ifdef CONFIG_PM
 615         DEBUGFS_ADD_MODE(reset, 0200);
 616 #endif
 617         DEBUGFS_ADD(hwflags);
 618         DEBUGFS_ADD(user_power);
 619         DEBUGFS_ADD(power);
 620         DEBUGFS_ADD(hw_conf);
 621         DEBUGFS_ADD_MODE(force_tx_status, 0600);
 622         DEBUGFS_ADD_MODE(aql_enable, 0600);
 623
 624         if (local->ops->wake_tx_queue)
 625                 DEBUGFS_ADD_MODE(aqm, 0600);
 626
 627         DEBUGFS_ADD_MODE(airtime_flags, 0600);
 628
 629         DEBUGFS_ADD(aql_txq_limit);
 630         debugfs_create_u32("aql_threshold", 0600,
 631                            phyd, &local->aql_threshold);
 632
 633         statsd = debugfs_create_dir("statistics", phyd);
 634
 635         /* if the dir failed, don't put all the other things into the root! */
 636         if (!statsd)
 637                 return;
 638
 639 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 640         DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
 641         DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
 642         DEBUGFS_STATS_ADD(dot11FailedCount);
 643         DEBUGFS_STATS_ADD(dot11RetryCount);
 644         DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
 645         DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
 646         DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
 647         DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
 648         DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
 649         DEBUGFS_STATS_ADD(tx_handlers_drop);
 650         DEBUGFS_STATS_ADD(tx_handlers_queued);
 651         DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
 652         DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
 653         DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
 654         DEBUGFS_STATS_ADD(rx_handlers_drop);
 655         DEBUGFS_STATS_ADD(rx_handlers_queued);
 656         DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
 657         DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
 658         DEBUGFS_STATS_ADD(tx_expand_skb_head);
 659         DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
 660         DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
 661         DEBUGFS_STATS_ADD(rx_handlers_fragments);
 662         DEBUGFS_STATS_ADD(tx_status_drop);
 663 #endif
 664         DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
 665         DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
 666         DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
 667         DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
 668 }