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, 2021-2024 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 debugfs_short_fops name## _ops = {                          \
  46         .read = name## _read,                                           \
  47         .llseek = generic_file_llseek,                                  \
  48 };
  49
  50 #define DEBUGFS_READONLY_FILE(name, fmt, value...)              \
  51         DEBUGFS_READONLY_FILE_FN(name, fmt, value)              \
  52         DEBUGFS_READONLY_FILE_OPS(name)
  53
  54 #define DEBUGFS_ADD(name)                                               \
  55         debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
  56
  57 #define DEBUGFS_ADD_MODE(name, mode)                                    \
  58         debugfs_create_file(#name, mode, phyd, local, &name## _ops);
  59
  60
  61 DEBUGFS_READONLY_FILE(hw_conf, "%x",
  62                       local->hw.conf.flags);
  63 DEBUGFS_READONLY_FILE(user_power, "%d",
  64                       local->user_power_level);
  65 DEBUGFS_READONLY_FILE(power, "%d",
  66                       local->hw.conf.power_level);
  67 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
  68                       local->total_ps_buffered);
  69 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
  70                       local->wep_iv & 0xffffff);
  71 DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
  72         local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
  73
  74 static ssize_t aqm_read(struct file *file,
  75                         char __user *user_buf,
  76                         size_t count,
  77                         loff_t *ppos)
  78 {
  79         struct ieee80211_local *local = file->private_data;
  80         struct fq *fq = &local->fq;
  81         char buf[200];
  82         int len = 0;
  83
  84         spin_lock_bh(&local->fq.lock);
  85         rcu_read_lock();
  86
  87         len = scnprintf(buf, sizeof(buf),
  88                         "access name value\n"
  89                         "R fq_flows_cnt %u\n"
  90                         "R fq_backlog %u\n"
  91                         "R fq_overlimit %u\n"
  92                         "R fq_overmemory %u\n"
  93                         "R fq_collisions %u\n"
  94                         "R fq_memory_usage %u\n"
  95                         "RW fq_memory_limit %u\n"
  96                         "RW fq_limit %u\n"
  97                         "RW fq_quantum %u\n",
  98                         fq->flows_cnt,
  99                         fq->backlog,
 100                         fq->overmemory,
 101                         fq->overlimit,
 102                         fq->collisions,
 103                         fq->memory_usage,
 104                         fq->memory_limit,
 105                         fq->limit,
 106                         fq->quantum);
 107
 108         rcu_read_unlock();
 109         spin_unlock_bh(&local->fq.lock);
 110
 111         return simple_read_from_buffer(user_buf, count, ppos,
 112                                        buf, len);
 113 }
 114
 115 static ssize_t aqm_write(struct file *file,
 116                          const char __user *user_buf,
 117                          size_t count,
 118                          loff_t *ppos)
 119 {
 120         struct ieee80211_local *local = file->private_data;
 121         char buf[100];
 122
 123         if (count >= sizeof(buf))
 124                 return -EINVAL;
 125
 126         if (copy_from_user(buf, user_buf, count))
 127                 return -EFAULT;
 128
 129         if (count && buf[count - 1] == '\n')
 130                 buf[count - 1] = '\0';
 131         else
 132                 buf[count] = '\0';
 133
 134         if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
 135                 return count;
 136         else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
 137                 return count;
 138         else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
 139                 return count;
 140
 141         return -EINVAL;
 142 }
 143
 144 static const struct debugfs_short_fops aqm_ops = {
 145         .write = aqm_write,
 146         .read = aqm_read,
 147         .llseek = default_llseek,
 148 };
 149
 150 static ssize_t airtime_flags_read(struct file *file,
 151                                   char __user *user_buf,
 152                                   size_t count, loff_t *ppos)
 153 {
 154         struct ieee80211_local *local = file->private_data;
 155         char buf[128] = {}, *pos, *end;
 156
 157         pos = buf;
 158         end = pos + sizeof(buf) - 1;
 159
 160         if (local->airtime_flags & AIRTIME_USE_TX)
 161                 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
 162                                  AIRTIME_USE_TX);
 163         if (local->airtime_flags & AIRTIME_USE_RX)
 164                 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
 165                                  AIRTIME_USE_RX);
 166
 167         return simple_read_from_buffer(user_buf, count, ppos, buf,
 168                                        strlen(buf));
 169 }
 170
 171 static ssize_t airtime_flags_write(struct file *file,
 172                                    const char __user *user_buf,
 173                                    size_t count, loff_t *ppos)
 174 {
 175         struct ieee80211_local *local = file->private_data;
 176         char buf[16];
 177
 178         if (count >= sizeof(buf))
 179                 return -EINVAL;
 180
 181         if (copy_from_user(buf, user_buf, count))
 182                 return -EFAULT;
 183
 184         if (count && buf[count - 1] == '\n')
 185                 buf[count - 1] = '\0';
 186         else
 187                 buf[count] = '\0';
 188
 189         if (kstrtou16(buf, 0, &local->airtime_flags))
 190                 return -EINVAL;
 191
 192         return count;
 193 }
 194
 195 static const struct debugfs_short_fops airtime_flags_ops = {
 196         .write = airtime_flags_write,
 197         .read = airtime_flags_read,
 198         .llseek = default_llseek,
 199 };
 200
 201 static ssize_t aql_pending_read(struct file *file,
 202                                 char __user *user_buf,
 203                                 size_t count, loff_t *ppos)
 204 {
 205         struct ieee80211_local *local = file->private_data;
 206         char buf[400];
 207         int len = 0;
 208
 209         len = scnprintf(buf, sizeof(buf),
 210                         "AC     AQL pending\n"
 211                         "VO     %u us\n"
 212                         "VI     %u us\n"
 213                         "BE     %u us\n"
 214                         "BK     %u us\n"
 215                         "total  %u us\n",
 216                         atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]),
 217                         atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]),
 218                         atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]),
 219                         atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]),
 220                         atomic_read(&local->aql_total_pending_airtime));
 221         return simple_read_from_buffer(user_buf, count, ppos,
 222                                        buf, len);
 223 }
 224
 225 static const struct debugfs_short_fops aql_pending_ops = {
 226         .read = aql_pending_read,
 227         .llseek = default_llseek,
 228 };
 229
 230 static ssize_t aql_txq_limit_read(struct file *file,
 231                                   char __user *user_buf,
 232                                   size_t count,
 233                                   loff_t *ppos)
 234 {
 235         struct ieee80211_local *local = file->private_data;
 236         char buf[400];
 237         int len = 0;
 238
 239         len = scnprintf(buf, sizeof(buf),
 240                         "AC     AQL limit low   AQL limit high\n"
 241                         "VO     %u              %u\n"
 242                         "VI     %u              %u\n"
 243                         "BE     %u              %u\n"
 244                         "BK     %u              %u\n",
 245                         local->aql_txq_limit_low[IEEE80211_AC_VO],
 246                         local->aql_txq_limit_high[IEEE80211_AC_VO],
 247                         local->aql_txq_limit_low[IEEE80211_AC_VI],
 248                         local->aql_txq_limit_high[IEEE80211_AC_VI],
 249                         local->aql_txq_limit_low[IEEE80211_AC_BE],
 250                         local->aql_txq_limit_high[IEEE80211_AC_BE],
 251                         local->aql_txq_limit_low[IEEE80211_AC_BK],
 252                         local->aql_txq_limit_high[IEEE80211_AC_BK]);
 253         return simple_read_from_buffer(user_buf, count, ppos,
 254                                        buf, len);
 255 }
 256
 257 static ssize_t aql_txq_limit_write(struct file *file,
 258                                    const char __user *user_buf,
 259                                    size_t count,
 260                                    loff_t *ppos)
 261 {
 262         struct ieee80211_local *local = file->private_data;
 263         char buf[100];
 264         u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
 265         struct sta_info *sta;
 266
 267         if (count >= sizeof(buf))
 268                 return -EINVAL;
 269
 270         if (copy_from_user(buf, user_buf, count))
 271                 return -EFAULT;
 272
 273         if (count && buf[count - 1] == '\n')
 274                 buf[count - 1] = '\0';
 275         else
 276                 buf[count] = '\0';
 277
 278         if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
 279                 return -EINVAL;
 280
 281         if (ac >= IEEE80211_NUM_ACS)
 282                 return -EINVAL;
 283
 284         q_limit_low_old = local->aql_txq_limit_low[ac];
 285         q_limit_high_old = local->aql_txq_limit_high[ac];
 286
 287         wiphy_lock(local->hw.wiphy);
 288         local->aql_txq_limit_low[ac] = q_limit_low;
 289         local->aql_txq_limit_high[ac] = q_limit_high;
 290
 291         list_for_each_entry(sta, &local->sta_list, list) {
 292                 /* If a sta has customized queue limits, keep it */
 293                 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
 294                     sta->airtime[ac].aql_limit_high == q_limit_high_old) {
 295                         sta->airtime[ac].aql_limit_low = q_limit_low;
 296                         sta->airtime[ac].aql_limit_high = q_limit_high;
 297                 }
 298         }
 299         wiphy_unlock(local->hw.wiphy);
 300
 301         return count;
 302 }
 303
 304 static const struct debugfs_short_fops aql_txq_limit_ops = {
 305         .write = aql_txq_limit_write,
 306         .read = aql_txq_limit_read,
 307         .llseek = default_llseek,
 308 };
 309
 310 static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
 311                                size_t count, loff_t *ppos)
 312 {
 313         char buf[3];
 314         int len;
 315
 316         len = scnprintf(buf, sizeof(buf), "%d\n",
 317                         !static_key_false(&aql_disable.key));
 318
 319         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 320 }
 321
 322 static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
 323                                 size_t count, loff_t *ppos)
 324 {
 325         bool aql_disabled = static_key_false(&aql_disable.key);
 326         char buf[3];
 327         size_t len;
 328
 329         if (count > sizeof(buf))
 330                 return -EINVAL;
 331
 332         if (copy_from_user(buf, user_buf, count))
 333                 return -EFAULT;
 334
 335         buf[sizeof(buf) - 1] = '\0';
 336         len = strlen(buf);
 337         if (len > 0 && buf[len - 1] == '\n')
 338                 buf[len - 1] = 0;
 339
 340         if (buf[0] == '0' && buf[1] == '\0') {
 341                 if (!aql_disabled)
 342                         static_branch_inc(&aql_disable);
 343         } else if (buf[0] == '1' && buf[1] == '\0') {
 344                 if (aql_disabled)
 345                         static_branch_dec(&aql_disable);
 346         } else {
 347                 return -EINVAL;
 348         }
 349
 350         return count;
 351 }
 352
 353 static const struct debugfs_short_fops aql_enable_ops = {
 354         .write = aql_enable_write,
 355         .read = aql_enable_read,
 356         .llseek = default_llseek,
 357 };
 358
 359 static ssize_t force_tx_status_read(struct file *file,
 360                                     char __user *user_buf,
 361                                     size_t count,
 362                                     loff_t *ppos)
 363 {
 364         struct ieee80211_local *local = file->private_data;
 365         char buf[3];
 366         int len = 0;
 367
 368         len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
 369
 370         return simple_read_from_buffer(user_buf, count, ppos,
 371                                        buf, len);
 372 }
 373
 374 static ssize_t force_tx_status_write(struct file *file,
 375                                      const char __user *user_buf,
 376                                      size_t count,
 377                                      loff_t *ppos)
 378 {
 379         struct ieee80211_local *local = file->private_data;
 380         char buf[3];
 381
 382         if (count >= sizeof(buf))
 383                 return -EINVAL;
 384
 385         if (copy_from_user(buf, user_buf, count))
 386                 return -EFAULT;
 387
 388         if (count && buf[count - 1] == '\n')
 389                 buf[count - 1] = '\0';
 390         else
 391                 buf[count] = '\0';
 392
 393         if (buf[0] == '0' && buf[1] == '\0')
 394                 local->force_tx_status = 0;
 395         else if (buf[0] == '1' && buf[1] == '\0')
 396                 local->force_tx_status = 1;
 397         else
 398                 return -EINVAL;
 399
 400         return count;
 401 }
 402
 403 static const struct debugfs_short_fops force_tx_status_ops = {
 404         .write = force_tx_status_write,
 405         .read = force_tx_status_read,
 406         .llseek = default_llseek,
 407 };
 408
 409 #ifdef CONFIG_PM
 410 static ssize_t reset_write(struct file *file, const char __user *user_buf,
 411                            size_t count, loff_t *ppos)
 412 {
 413         struct ieee80211_local *local = file->private_data;
 414         int ret;
 415
 416         rtnl_lock();
 417         wiphy_lock(local->hw.wiphy);
 418         __ieee80211_suspend(&local->hw, NULL);
 419         ret = __ieee80211_resume(&local->hw);
 420         wiphy_unlock(local->hw.wiphy);
 421
 422         if (ret)
 423                 cfg80211_shutdown_all_interfaces(local->hw.wiphy);
 424
 425         rtnl_unlock();
 426
 427         return count;
 428 }
 429
 430 static const struct debugfs_short_fops reset_ops = {
 431         .write = reset_write,
 432         .llseek = noop_llseek,
 433 };
 434 #endif
 435
 436 static const char *hw_flag_names[] = {
 437 #define FLAG(F) [IEEE80211_HW_##F] = #F
 438         FLAG(HAS_RATE_CONTROL),
 439         FLAG(RX_INCLUDES_FCS),
 440         FLAG(HOST_BROADCAST_PS_BUFFERING),
 441         FLAG(SIGNAL_UNSPEC),
 442         FLAG(SIGNAL_DBM),
 443         FLAG(NEED_DTIM_BEFORE_ASSOC),
 444         FLAG(SPECTRUM_MGMT),
 445         FLAG(AMPDU_AGGREGATION),
 446         FLAG(SUPPORTS_PS),
 447         FLAG(PS_NULLFUNC_STACK),
 448         FLAG(SUPPORTS_DYNAMIC_PS),
 449         FLAG(MFP_CAPABLE),
 450         FLAG(WANT_MONITOR_VIF),
 451         FLAG(NO_VIRTUAL_MONITOR),
 452         FLAG(NO_AUTO_VIF),
 453         FLAG(SW_CRYPTO_CONTROL),
 454         FLAG(SUPPORT_FAST_XMIT),
 455         FLAG(REPORTS_TX_ACK_STATUS),
 456         FLAG(CONNECTION_MONITOR),
 457         FLAG(QUEUE_CONTROL),
 458         FLAG(SUPPORTS_PER_STA_GTK),
 459         FLAG(AP_LINK_PS),
 460         FLAG(TX_AMPDU_SETUP_IN_HW),
 461         FLAG(SUPPORTS_RC_TABLE),
 462         FLAG(P2P_DEV_ADDR_FOR_INTF),
 463         FLAG(TIMING_BEACON_ONLY),
 464         FLAG(SUPPORTS_HT_CCK_RATES),
 465         FLAG(CHANCTX_STA_CSA),
 466         FLAG(SUPPORTS_CLONED_SKBS),
 467         FLAG(SINGLE_SCAN_ON_ALL_BANDS),
 468         FLAG(TDLS_WIDER_BW),
 469         FLAG(SUPPORTS_AMSDU_IN_AMPDU),
 470         FLAG(BEACON_TX_STATUS),
 471         FLAG(NEEDS_UNIQUE_STA_ADDR),
 472         FLAG(SUPPORTS_REORDERING_BUFFER),
 473         FLAG(USES_RSS),
 474         FLAG(TX_AMSDU),
 475         FLAG(TX_FRAG_LIST),
 476         FLAG(REPORTS_LOW_ACK),
 477         FLAG(SUPPORTS_TX_FRAG),
 478         FLAG(SUPPORTS_TDLS_BUFFER_STA),
 479         FLAG(DOESNT_SUPPORT_QOS_NDP),
 480         FLAG(BUFF_MMPDU_TXQ),
 481         FLAG(SUPPORTS_VHT_EXT_NSS_BW),
 482         FLAG(STA_MMPDU_TXQ),
 483         FLAG(TX_STATUS_NO_AMPDU_LEN),
 484         FLAG(SUPPORTS_MULTI_BSSID),
 485         FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
 486         FLAG(AMPDU_KEYBORDER_SUPPORT),
 487         FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
 488         FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
 489         FLAG(SUPPORTS_CONC_MON_RX_DECAP),
 490         FLAG(DETECTS_COLOR_COLLISION),
 491         FLAG(MLO_MCAST_MULTI_LINK_TX),
 492         FLAG(DISALLOW_PUNCTURING),
 493         FLAG(DISALLOW_PUNCTURING_5GHZ),
 494         FLAG(HANDLES_QUIET_CSA),
 495 #undef FLAG
 496 };
 497
 498 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
 499                             size_t count, loff_t *ppos)
 500 {
 501         struct ieee80211_local *local = file->private_data;
 502         size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
 503         char *buf = kzalloc(bufsz, GFP_KERNEL);
 504         char *pos = buf, *end = buf + bufsz - 1;
 505         ssize_t rv;
 506         int i;
 507
 508         if (!buf)
 509                 return -ENOMEM;
 510
 511         /* fail compilation if somebody adds or removes
 512          * a flag without updating the name array above
 513          */
 514         BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
 515
 516         for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
 517                 if (test_bit(i, local->hw.flags))
 518                         pos += scnprintf(pos, end - pos, "%s\n",
 519                                          hw_flag_names[i]);
 520         }
 521
 522         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 523         kfree(buf);
 524         return rv;
 525 }
 526
 527 static ssize_t misc_read(struct file *file, char __user *user_buf,
 528                          size_t count, loff_t *ppos)
 529 {
 530         struct ieee80211_local *local = file->private_data;
 531         /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
 532         size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
 533         char *buf;
 534         char *pos, *end;
 535         ssize_t rv;
 536         int i;
 537         int ln;
 538
 539         buf = kzalloc(bufsz, GFP_KERNEL);
 540         if (!buf)
 541                 return -ENOMEM;
 542
 543         pos = buf;
 544         end = buf + bufsz - 1;
 545
 546         pos += scnprintf(pos, end - pos, "pending:\n");
 547
 548         for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
 549                 ln = skb_queue_len(&local->pending[i]);
 550                 pos += scnprintf(pos, end - pos, "[%i] %d\n",
 551                                  i, ln);
 552         }
 553
 554         rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 555         kfree(buf);
 556         return rv;
 557 }
 558
 559 static ssize_t queues_read(struct file *file, char __user *user_buf,
 560                            size_t count, loff_t *ppos)
 561 {
 562         struct ieee80211_local *local = file->private_data;
 563         unsigned long flags;
 564         char buf[IEEE80211_MAX_QUEUES * 20];
 565         int q, res = 0;
 566
 567         spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 568         for (q = 0; q < local->hw.queues; q++)
 569                 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
 570                                 local->queue_stop_reasons[q],
 571                                 skb_queue_len(&local->pending[q]));
 572         spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 573
 574         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 575 }
 576
 577 DEBUGFS_READONLY_FILE_OPS(hwflags);
 578 DEBUGFS_READONLY_FILE_OPS(queues);
 579 DEBUGFS_READONLY_FILE_OPS(misc);
 580
 581 /* statistics stuff */
 582
 583 static ssize_t format_devstat_counter(struct ieee80211_local *local,
 584         char __user *userbuf,
 585         size_t count, loff_t *ppos,
 586         int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
 587                           int buflen))
 588 {
 589         struct ieee80211_low_level_stats stats;
 590         char buf[20];
 591         int res;
 592
 593         wiphy_lock(local->hw.wiphy);
 594         res = drv_get_stats(local, &stats);
 595         wiphy_unlock(local->hw.wiphy);
 596         if (res)
 597                 return res;
 598         res = printvalue(&stats, buf, sizeof(buf));
 599         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 600 }
 601
 602 #define DEBUGFS_DEVSTATS_FILE(name)                                     \
 603 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
 604                                  char *buf, int buflen)                 \
 605 {                                                                       \
 606         return scnprintf(buf, buflen, "%u\n", stats->name);             \
 607 }                                                                       \
 608 static ssize_t stats_ ##name## _read(struct file *file,                 \
 609                                      char __user *userbuf,              \
 610                                      size_t count, loff_t *ppos)        \
 611 {                                                                       \
 612         return format_devstat_counter(file->private_data,               \
 613                                       userbuf,                          \
 614                                       count,                            \
 615                                       ppos,                             \
 616                                       print_devstats_##name);           \
 617 }                                                                       \
 618                                                                         \
 619 static const struct debugfs_short_fops stats_ ##name## _ops = {                 \
 620         .read = stats_ ##name## _read,                                  \
 621         .llseek = generic_file_llseek,                                  \
 622 };
 623
 624 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 625 #define DEBUGFS_STATS_ADD(name)                                 \
 626         debugfs_create_u32(#name, 0400, statsd, &local->name);
 627 #endif
 628 #define DEBUGFS_DEVSTATS_ADD(name)                                      \
 629         debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
 630
 631 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
 632 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
 633 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
 634 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
 635
 636 void debugfs_hw_add(struct ieee80211_local *local)
 637 {
 638         struct dentry *phyd = local->hw.wiphy->debugfsdir;
 639         struct dentry *statsd;
 640
 641         if (!phyd)
 642                 return;
 643
 644         local->debugfs.keys = debugfs_create_dir("keys", phyd);
 645
 646         DEBUGFS_ADD(total_ps_buffered);
 647         DEBUGFS_ADD(wep_iv);
 648         DEBUGFS_ADD(rate_ctrl_alg);
 649         DEBUGFS_ADD(queues);
 650         DEBUGFS_ADD(misc);
 651 #ifdef CONFIG_PM
 652         DEBUGFS_ADD_MODE(reset, 0200);
 653 #endif
 654         DEBUGFS_ADD(hwflags);
 655         DEBUGFS_ADD(user_power);
 656         DEBUGFS_ADD(power);
 657         DEBUGFS_ADD(hw_conf);
 658         DEBUGFS_ADD_MODE(force_tx_status, 0600);
 659         DEBUGFS_ADD_MODE(aql_enable, 0600);
 660         DEBUGFS_ADD(aql_pending);
 661         DEBUGFS_ADD_MODE(aqm, 0600);
 662
 663         DEBUGFS_ADD_MODE(airtime_flags, 0600);
 664
 665         DEBUGFS_ADD(aql_txq_limit);
 666         debugfs_create_u32("aql_threshold", 0600,
 667                            phyd, &local->aql_threshold);
 668
 669         statsd = debugfs_create_dir("statistics", phyd);
 670
 671 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 672         DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
 673         DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
 674         DEBUGFS_STATS_ADD(dot11FailedCount);
 675         DEBUGFS_STATS_ADD(dot11RetryCount);
 676         DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
 677         DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
 678         DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
 679         DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
 680         DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
 681         DEBUGFS_STATS_ADD(tx_handlers_drop);
 682         DEBUGFS_STATS_ADD(tx_handlers_queued);
 683         DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
 684         DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
 685         DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
 686         DEBUGFS_STATS_ADD(rx_handlers_drop);
 687         DEBUGFS_STATS_ADD(rx_handlers_queued);
 688         DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
 689         DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
 690         DEBUGFS_STATS_ADD(tx_expand_skb_head);
 691         DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
 692         DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
 693         DEBUGFS_STATS_ADD(rx_handlers_fragments);
 694         DEBUGFS_STATS_ADD(tx_status_drop);
 695 #endif
 696         DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
 697         DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
 698         DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
 699         DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
 700 }