1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 debugfs for wireless PHYs 4 * 5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 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 mac80211_format_buffer(char __user * userbuf,size_t count,loff_t * ppos,char * fmt,...)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 aqm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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 aqm_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)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 airtime_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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 airtime_flags_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)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 aql_pending_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)204 static ssize_t aql_pending_read(struct file *file, 205 char __user *user_buf, 206 size_t count, loff_t *ppos) 207 { 208 struct ieee80211_local *local = file->private_data; 209 char buf[400]; 210 int len = 0; 211 212 len = scnprintf(buf, sizeof(buf), 213 "AC AQL pending\n" 214 "VO %u us\n" 215 "VI %u us\n" 216 "BE %u us\n" 217 "BK %u us\n" 218 "total %u us\n", 219 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]), 220 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]), 221 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]), 222 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]), 223 atomic_read(&local->aql_total_pending_airtime)); 224 return simple_read_from_buffer(user_buf, count, ppos, 225 buf, len); 226 } 227 228 static const struct file_operations aql_pending_ops = { 229 .read = aql_pending_read, 230 .open = simple_open, 231 .llseek = default_llseek, 232 }; 233 aql_txq_limit_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)234 static ssize_t aql_txq_limit_read(struct file *file, 235 char __user *user_buf, 236 size_t count, 237 loff_t *ppos) 238 { 239 struct ieee80211_local *local = file->private_data; 240 char buf[400]; 241 int len = 0; 242 243 len = scnprintf(buf, sizeof(buf), 244 "AC AQL limit low AQL limit high\n" 245 "VO %u %u\n" 246 "VI %u %u\n" 247 "BE %u %u\n" 248 "BK %u %u\n", 249 local->aql_txq_limit_low[IEEE80211_AC_VO], 250 local->aql_txq_limit_high[IEEE80211_AC_VO], 251 local->aql_txq_limit_low[IEEE80211_AC_VI], 252 local->aql_txq_limit_high[IEEE80211_AC_VI], 253 local->aql_txq_limit_low[IEEE80211_AC_BE], 254 local->aql_txq_limit_high[IEEE80211_AC_BE], 255 local->aql_txq_limit_low[IEEE80211_AC_BK], 256 local->aql_txq_limit_high[IEEE80211_AC_BK]); 257 return simple_read_from_buffer(user_buf, count, ppos, 258 buf, len); 259 } 260 aql_txq_limit_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)261 static ssize_t aql_txq_limit_write(struct file *file, 262 const char __user *user_buf, 263 size_t count, 264 loff_t *ppos) 265 { 266 struct ieee80211_local *local = file->private_data; 267 char buf[100]; 268 u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old; 269 struct sta_info *sta; 270 271 if (count >= sizeof(buf)) 272 return -EINVAL; 273 274 if (copy_from_user(buf, user_buf, count)) 275 return -EFAULT; 276 277 if (count && buf[count - 1] == '\n') 278 buf[count - 1] = '\0'; 279 else 280 buf[count] = '\0'; 281 282 if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3) 283 return -EINVAL; 284 285 if (ac >= IEEE80211_NUM_ACS) 286 return -EINVAL; 287 288 q_limit_low_old = local->aql_txq_limit_low[ac]; 289 q_limit_high_old = local->aql_txq_limit_high[ac]; 290 291 wiphy_lock(local->hw.wiphy); 292 local->aql_txq_limit_low[ac] = q_limit_low; 293 local->aql_txq_limit_high[ac] = q_limit_high; 294 295 list_for_each_entry(sta, &local->sta_list, list) { 296 /* If a sta has customized queue limits, keep it */ 297 if (sta->airtime[ac].aql_limit_low == q_limit_low_old && 298 sta->airtime[ac].aql_limit_high == q_limit_high_old) { 299 sta->airtime[ac].aql_limit_low = q_limit_low; 300 sta->airtime[ac].aql_limit_high = q_limit_high; 301 } 302 } 303 wiphy_unlock(local->hw.wiphy); 304 305 return count; 306 } 307 308 static const struct file_operations aql_txq_limit_ops = { 309 .write = aql_txq_limit_write, 310 .read = aql_txq_limit_read, 311 .open = simple_open, 312 .llseek = default_llseek, 313 }; 314 aql_enable_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)315 static ssize_t aql_enable_read(struct file *file, char __user *user_buf, 316 size_t count, loff_t *ppos) 317 { 318 char buf[3]; 319 int len; 320 321 len = scnprintf(buf, sizeof(buf), "%d\n", 322 !static_key_false(&aql_disable.key)); 323 324 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 325 } 326 aql_enable_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)327 static ssize_t aql_enable_write(struct file *file, const char __user *user_buf, 328 size_t count, loff_t *ppos) 329 { 330 bool aql_disabled = static_key_false(&aql_disable.key); 331 char buf[3]; 332 size_t len; 333 334 if (count > sizeof(buf)) 335 return -EINVAL; 336 337 if (copy_from_user(buf, user_buf, count)) 338 return -EFAULT; 339 340 buf[sizeof(buf) - 1] = '\0'; 341 len = strlen(buf); 342 if (len > 0 && buf[len - 1] == '\n') 343 buf[len - 1] = 0; 344 345 if (buf[0] == '0' && buf[1] == '\0') { 346 if (!aql_disabled) 347 static_branch_inc(&aql_disable); 348 } else if (buf[0] == '1' && buf[1] == '\0') { 349 if (aql_disabled) 350 static_branch_dec(&aql_disable); 351 } else { 352 return -EINVAL; 353 } 354 355 return count; 356 } 357 358 static const struct file_operations aql_enable_ops = { 359 .write = aql_enable_write, 360 .read = aql_enable_read, 361 .open = simple_open, 362 .llseek = default_llseek, 363 }; 364 force_tx_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)365 static ssize_t force_tx_status_read(struct file *file, 366 char __user *user_buf, 367 size_t count, 368 loff_t *ppos) 369 { 370 struct ieee80211_local *local = file->private_data; 371 char buf[3]; 372 int len = 0; 373 374 len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status); 375 376 return simple_read_from_buffer(user_buf, count, ppos, 377 buf, len); 378 } 379 force_tx_status_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)380 static ssize_t force_tx_status_write(struct file *file, 381 const char __user *user_buf, 382 size_t count, 383 loff_t *ppos) 384 { 385 struct ieee80211_local *local = file->private_data; 386 char buf[3]; 387 388 if (count >= sizeof(buf)) 389 return -EINVAL; 390 391 if (copy_from_user(buf, user_buf, count)) 392 return -EFAULT; 393 394 if (count && buf[count - 1] == '\n') 395 buf[count - 1] = '\0'; 396 else 397 buf[count] = '\0'; 398 399 if (buf[0] == '0' && buf[1] == '\0') 400 local->force_tx_status = 0; 401 else if (buf[0] == '1' && buf[1] == '\0') 402 local->force_tx_status = 1; 403 else 404 return -EINVAL; 405 406 return count; 407 } 408 409 static const struct file_operations force_tx_status_ops = { 410 .write = force_tx_status_write, 411 .read = force_tx_status_read, 412 .open = simple_open, 413 .llseek = default_llseek, 414 }; 415 416 #ifdef CONFIG_PM reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)417 static ssize_t reset_write(struct file *file, const char __user *user_buf, 418 size_t count, loff_t *ppos) 419 { 420 struct ieee80211_local *local = file->private_data; 421 int ret; 422 423 rtnl_lock(); 424 wiphy_lock(local->hw.wiphy); 425 __ieee80211_suspend(&local->hw, NULL); 426 ret = __ieee80211_resume(&local->hw); 427 wiphy_unlock(local->hw.wiphy); 428 429 if (ret) 430 cfg80211_shutdown_all_interfaces(local->hw.wiphy); 431 432 rtnl_unlock(); 433 434 return count; 435 } 436 437 static const struct file_operations reset_ops = { 438 .write = reset_write, 439 .open = simple_open, 440 .llseek = noop_llseek, 441 }; 442 #endif 443 444 static const char *hw_flag_names[] = { 445 #define FLAG(F) [IEEE80211_HW_##F] = #F 446 FLAG(HAS_RATE_CONTROL), 447 FLAG(RX_INCLUDES_FCS), 448 FLAG(HOST_BROADCAST_PS_BUFFERING), 449 FLAG(SIGNAL_UNSPEC), 450 FLAG(SIGNAL_DBM), 451 FLAG(NEED_DTIM_BEFORE_ASSOC), 452 FLAG(SPECTRUM_MGMT), 453 FLAG(AMPDU_AGGREGATION), 454 FLAG(SUPPORTS_PS), 455 FLAG(PS_NULLFUNC_STACK), 456 FLAG(SUPPORTS_DYNAMIC_PS), 457 FLAG(MFP_CAPABLE), 458 FLAG(WANT_MONITOR_VIF), 459 FLAG(NO_AUTO_VIF), 460 FLAG(SW_CRYPTO_CONTROL), 461 FLAG(SUPPORT_FAST_XMIT), 462 FLAG(REPORTS_TX_ACK_STATUS), 463 FLAG(CONNECTION_MONITOR), 464 FLAG(QUEUE_CONTROL), 465 FLAG(SUPPORTS_PER_STA_GTK), 466 FLAG(AP_LINK_PS), 467 FLAG(TX_AMPDU_SETUP_IN_HW), 468 FLAG(SUPPORTS_RC_TABLE), 469 FLAG(P2P_DEV_ADDR_FOR_INTF), 470 FLAG(TIMING_BEACON_ONLY), 471 FLAG(SUPPORTS_HT_CCK_RATES), 472 FLAG(CHANCTX_STA_CSA), 473 FLAG(SUPPORTS_CLONED_SKBS), 474 FLAG(SINGLE_SCAN_ON_ALL_BANDS), 475 FLAG(TDLS_WIDER_BW), 476 FLAG(SUPPORTS_AMSDU_IN_AMPDU), 477 FLAG(BEACON_TX_STATUS), 478 FLAG(NEEDS_UNIQUE_STA_ADDR), 479 FLAG(SUPPORTS_REORDERING_BUFFER), 480 FLAG(USES_RSS), 481 FLAG(TX_AMSDU), 482 FLAG(TX_FRAG_LIST), 483 FLAG(REPORTS_LOW_ACK), 484 FLAG(SUPPORTS_TX_FRAG), 485 FLAG(SUPPORTS_TDLS_BUFFER_STA), 486 FLAG(DOESNT_SUPPORT_QOS_NDP), 487 FLAG(BUFF_MMPDU_TXQ), 488 FLAG(SUPPORTS_VHT_EXT_NSS_BW), 489 FLAG(STA_MMPDU_TXQ), 490 FLAG(TX_STATUS_NO_AMPDU_LEN), 491 FLAG(SUPPORTS_MULTI_BSSID), 492 FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID), 493 FLAG(AMPDU_KEYBORDER_SUPPORT), 494 FLAG(SUPPORTS_TX_ENCAP_OFFLOAD), 495 FLAG(SUPPORTS_RX_DECAP_OFFLOAD), 496 FLAG(SUPPORTS_CONC_MON_RX_DECAP), 497 FLAG(DETECTS_COLOR_COLLISION), 498 FLAG(MLO_MCAST_MULTI_LINK_TX), 499 FLAG(DISALLOW_PUNCTURING), 500 FLAG(DISALLOW_PUNCTURING_5GHZ), 501 FLAG(HANDLES_QUIET_CSA), 502 #undef FLAG 503 }; 504 hwflags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)505 static ssize_t hwflags_read(struct file *file, char __user *user_buf, 506 size_t count, loff_t *ppos) 507 { 508 struct ieee80211_local *local = file->private_data; 509 size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS; 510 char *buf = kzalloc(bufsz, GFP_KERNEL); 511 char *pos = buf, *end = buf + bufsz - 1; 512 ssize_t rv; 513 int i; 514 515 if (!buf) 516 return -ENOMEM; 517 518 /* fail compilation if somebody adds or removes 519 * a flag without updating the name array above 520 */ 521 BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS); 522 523 for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) { 524 if (test_bit(i, local->hw.flags)) 525 pos += scnprintf(pos, end - pos, "%s\n", 526 hw_flag_names[i]); 527 } 528 529 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 530 kfree(buf); 531 return rv; 532 } 533 misc_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)534 static ssize_t misc_read(struct file *file, char __user *user_buf, 535 size_t count, loff_t *ppos) 536 { 537 struct ieee80211_local *local = file->private_data; 538 /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */ 539 size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9; 540 char *buf; 541 char *pos, *end; 542 ssize_t rv; 543 int i; 544 int ln; 545 546 buf = kzalloc(bufsz, GFP_KERNEL); 547 if (!buf) 548 return -ENOMEM; 549 550 pos = buf; 551 end = buf + bufsz - 1; 552 553 pos += scnprintf(pos, end - pos, "pending:\n"); 554 555 for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { 556 ln = skb_queue_len(&local->pending[i]); 557 pos += scnprintf(pos, end - pos, "[%i] %d\n", 558 i, ln); 559 } 560 561 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 562 kfree(buf); 563 return rv; 564 } 565 queues_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)566 static ssize_t queues_read(struct file *file, char __user *user_buf, 567 size_t count, loff_t *ppos) 568 { 569 struct ieee80211_local *local = file->private_data; 570 unsigned long flags; 571 char buf[IEEE80211_MAX_QUEUES * 20]; 572 int q, res = 0; 573 574 spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 575 for (q = 0; q < local->hw.queues; q++) 576 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q, 577 local->queue_stop_reasons[q], 578 skb_queue_len(&local->pending[q])); 579 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 580 581 return simple_read_from_buffer(user_buf, count, ppos, buf, res); 582 } 583 584 DEBUGFS_READONLY_FILE_OPS(hwflags); 585 DEBUGFS_READONLY_FILE_OPS(queues); 586 DEBUGFS_READONLY_FILE_OPS(misc); 587 588 /* statistics stuff */ 589 format_devstat_counter(struct ieee80211_local * local,char __user * userbuf,size_t count,loff_t * ppos,int (* printvalue)(struct ieee80211_low_level_stats * stats,char * buf,int buflen))590 static ssize_t format_devstat_counter(struct ieee80211_local *local, 591 char __user *userbuf, 592 size_t count, loff_t *ppos, 593 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, 594 int buflen)) 595 { 596 struct ieee80211_low_level_stats stats; 597 char buf[20]; 598 int res; 599 600 wiphy_lock(local->hw.wiphy); 601 res = drv_get_stats(local, &stats); 602 wiphy_unlock(local->hw.wiphy); 603 if (res) 604 return res; 605 res = printvalue(&stats, buf, sizeof(buf)); 606 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 607 } 608 609 #define DEBUGFS_DEVSTATS_FILE(name) \ 610 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ 611 char *buf, int buflen) \ 612 { \ 613 return scnprintf(buf, buflen, "%u\n", stats->name); \ 614 } \ 615 static ssize_t stats_ ##name## _read(struct file *file, \ 616 char __user *userbuf, \ 617 size_t count, loff_t *ppos) \ 618 { \ 619 return format_devstat_counter(file->private_data, \ 620 userbuf, \ 621 count, \ 622 ppos, \ 623 print_devstats_##name); \ 624 } \ 625 \ 626 static const struct file_operations stats_ ##name## _ops = { \ 627 .read = stats_ ##name## _read, \ 628 .open = simple_open, \ 629 .llseek = generic_file_llseek, \ 630 }; 631 632 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 633 #define DEBUGFS_STATS_ADD(name) \ 634 debugfs_create_u32(#name, 0400, statsd, &local->name); 635 #endif 636 #define DEBUGFS_DEVSTATS_ADD(name) \ 637 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops); 638 639 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); 640 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); 641 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); 642 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); 643 debugfs_hw_add(struct ieee80211_local * local)644 void debugfs_hw_add(struct ieee80211_local *local) 645 { 646 struct dentry *phyd = local->hw.wiphy->debugfsdir; 647 struct dentry *statsd; 648 649 if (!phyd) 650 return; 651 652 local->debugfs.keys = debugfs_create_dir("keys", phyd); 653 654 DEBUGFS_ADD(total_ps_buffered); 655 DEBUGFS_ADD(wep_iv); 656 DEBUGFS_ADD(rate_ctrl_alg); 657 DEBUGFS_ADD(queues); 658 DEBUGFS_ADD(misc); 659 #ifdef CONFIG_PM 660 DEBUGFS_ADD_MODE(reset, 0200); 661 #endif 662 DEBUGFS_ADD(hwflags); 663 DEBUGFS_ADD(user_power); 664 DEBUGFS_ADD(power); 665 DEBUGFS_ADD(hw_conf); 666 DEBUGFS_ADD_MODE(force_tx_status, 0600); 667 DEBUGFS_ADD_MODE(aql_enable, 0600); 668 DEBUGFS_ADD(aql_pending); 669 DEBUGFS_ADD_MODE(aqm, 0600); 670 671 DEBUGFS_ADD_MODE(airtime_flags, 0600); 672 673 DEBUGFS_ADD(aql_txq_limit); 674 debugfs_create_u32("aql_threshold", 0600, 675 phyd, &local->aql_threshold); 676 677 statsd = debugfs_create_dir("statistics", phyd); 678 679 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 680 DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount); 681 DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount); 682 DEBUGFS_STATS_ADD(dot11FailedCount); 683 DEBUGFS_STATS_ADD(dot11RetryCount); 684 DEBUGFS_STATS_ADD(dot11MultipleRetryCount); 685 DEBUGFS_STATS_ADD(dot11FrameDuplicateCount); 686 DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount); 687 DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount); 688 DEBUGFS_STATS_ADD(dot11TransmittedFrameCount); 689 DEBUGFS_STATS_ADD(tx_handlers_drop); 690 DEBUGFS_STATS_ADD(tx_handlers_queued); 691 DEBUGFS_STATS_ADD(tx_handlers_drop_wep); 692 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); 693 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); 694 DEBUGFS_STATS_ADD(rx_handlers_drop); 695 DEBUGFS_STATS_ADD(rx_handlers_queued); 696 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); 697 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); 698 DEBUGFS_STATS_ADD(tx_expand_skb_head); 699 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); 700 DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag); 701 DEBUGFS_STATS_ADD(rx_handlers_fragments); 702 DEBUGFS_STATS_ADD(tx_status_drop); 703 #endif 704 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount); 705 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount); 706 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount); 707 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount); 708 } 709