1 /* 2 * Copyright 2003-2005 Devicescape Software, Inc. 3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> 4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2014 Intel Mobile Communications GmbH 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/debugfs.h> 13 #include <linux/ieee80211.h> 14 #include "ieee80211_i.h" 15 #include "debugfs.h" 16 #include "debugfs_sta.h" 17 #include "sta_info.h" 18 #include "driver-ops.h" 19 20 /* sta attributtes */ 21 22 #define STA_READ(name, field, format_string) \ 23 static ssize_t sta_ ##name## _read(struct file *file, \ 24 char __user *userbuf, \ 25 size_t count, loff_t *ppos) \ 26 { \ 27 struct sta_info *sta = file->private_data; \ 28 return mac80211_format_buffer(userbuf, count, ppos, \ 29 format_string, sta->field); \ 30 } 31 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n") 32 #define STA_READ_U(name, field) STA_READ(name, field, "%u\n") 33 #define STA_READ_S(name, field) STA_READ(name, field, "%s\n") 34 35 #define STA_OPS(name) \ 36 static const struct file_operations sta_ ##name## _ops = { \ 37 .read = sta_##name##_read, \ 38 .open = simple_open, \ 39 .llseek = generic_file_llseek, \ 40 } 41 42 #define STA_OPS_W(name) \ 43 static const struct file_operations sta_ ##name## _ops = { \ 44 .write = sta_##name##_write, \ 45 .open = simple_open, \ 46 .llseek = generic_file_llseek, \ 47 } 48 49 #define STA_OPS_RW(name) \ 50 static const struct file_operations sta_ ##name## _ops = { \ 51 .read = sta_##name##_read, \ 52 .write = sta_##name##_write, \ 53 .open = simple_open, \ 54 .llseek = generic_file_llseek, \ 55 } 56 57 #define STA_FILE(name, field, format) \ 58 STA_READ_##format(name, field) \ 59 STA_OPS(name) 60 61 STA_FILE(aid, sta.aid, D); 62 STA_FILE(dev, sdata->name, S); 63 STA_FILE(last_signal, last_signal, D); 64 STA_FILE(last_ack_signal, last_ack_signal, D); 65 STA_FILE(beacon_loss_count, beacon_loss_count, D); 66 67 static ssize_t sta_flags_read(struct file *file, char __user *userbuf, 68 size_t count, loff_t *ppos) 69 { 70 char buf[121]; 71 struct sta_info *sta = file->private_data; 72 73 #define TEST(flg) \ 74 test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : "" 75 76 int res = scnprintf(buf, sizeof(buf), 77 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 78 TEST(AUTH), TEST(ASSOC), TEST(PS_STA), 79 TEST(PS_DRIVER), TEST(AUTHORIZED), 80 TEST(SHORT_PREAMBLE), 81 sta->sta.wme ? "WME\n" : "", 82 TEST(WDS), TEST(CLEAR_PS_FILT), 83 TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL), 84 TEST(UAPSD), TEST(SP), TEST(TDLS_PEER), 85 TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT), 86 TEST(INSERTED), TEST(RATE_CONTROL), 87 TEST(TOFFSET_KNOWN), TEST(MPSP_OWNER), 88 TEST(MPSP_RECIPIENT)); 89 #undef TEST 90 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 91 } 92 STA_OPS(flags); 93 94 static ssize_t sta_num_ps_buf_frames_read(struct file *file, 95 char __user *userbuf, 96 size_t count, loff_t *ppos) 97 { 98 struct sta_info *sta = file->private_data; 99 char buf[17*IEEE80211_NUM_ACS], *p = buf; 100 int ac; 101 102 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 103 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, 104 skb_queue_len(&sta->ps_tx_buf[ac]) + 105 skb_queue_len(&sta->tx_filtered[ac])); 106 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 107 } 108 STA_OPS(num_ps_buf_frames); 109 110 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, 111 size_t count, loff_t *ppos) 112 { 113 struct sta_info *sta = file->private_data; 114 return mac80211_format_buffer(userbuf, count, ppos, "%d\n", 115 jiffies_to_msecs(jiffies - sta->last_rx)); 116 } 117 STA_OPS(inactive_ms); 118 119 120 static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf, 121 size_t count, loff_t *ppos) 122 { 123 struct sta_info *sta = file->private_data; 124 struct timespec uptime; 125 struct tm result; 126 long connected_time_secs; 127 char buf[100]; 128 int res; 129 ktime_get_ts(&uptime); 130 connected_time_secs = uptime.tv_sec - sta->last_connected; 131 time_to_tm(connected_time_secs, 0, &result); 132 result.tm_year -= 70; 133 result.tm_mday -= 1; 134 res = scnprintf(buf, sizeof(buf), 135 "years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n", 136 result.tm_year, result.tm_mon, result.tm_mday, 137 result.tm_hour, result.tm_min, result.tm_sec); 138 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 139 } 140 STA_OPS(connected_time); 141 142 143 144 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, 145 size_t count, loff_t *ppos) 146 { 147 char buf[15*IEEE80211_NUM_TIDS], *p = buf; 148 int i; 149 struct sta_info *sta = file->private_data; 150 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 151 p += scnprintf(p, sizeof(buf)+buf-p, "%x ", 152 le16_to_cpu(sta->last_seq_ctrl[i])); 153 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 154 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 155 } 156 STA_OPS(last_seq_ctrl); 157 158 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 159 size_t count, loff_t *ppos) 160 { 161 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; 162 int i; 163 struct sta_info *sta = file->private_data; 164 struct tid_ampdu_rx *tid_rx; 165 struct tid_ampdu_tx *tid_tx; 166 167 rcu_read_lock(); 168 169 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", 170 sta->ampdu_mlme.dialog_token_allocator + 1); 171 p += scnprintf(p, sizeof(buf) + buf - p, 172 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 173 174 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 175 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 176 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 177 178 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); 179 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx); 180 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 181 tid_rx ? tid_rx->dialog_token : 0); 182 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", 183 tid_rx ? tid_rx->ssn : 0); 184 185 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); 186 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 187 tid_tx ? tid_tx->dialog_token : 0); 188 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", 189 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 190 p += scnprintf(p, sizeof(buf) + buf - p, "\n"); 191 } 192 rcu_read_unlock(); 193 194 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 195 } 196 197 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 198 size_t count, loff_t *ppos) 199 { 200 char _buf[12] = {}, *buf = _buf; 201 struct sta_info *sta = file->private_data; 202 bool start, tx; 203 unsigned long tid; 204 int ret; 205 206 if (count > sizeof(_buf)) 207 return -EINVAL; 208 209 if (copy_from_user(buf, userbuf, count)) 210 return -EFAULT; 211 212 buf[sizeof(_buf) - 1] = '\0'; 213 214 if (strncmp(buf, "tx ", 3) == 0) { 215 buf += 3; 216 tx = true; 217 } else if (strncmp(buf, "rx ", 3) == 0) { 218 buf += 3; 219 tx = false; 220 } else 221 return -EINVAL; 222 223 if (strncmp(buf, "start ", 6) == 0) { 224 buf += 6; 225 start = true; 226 if (!tx) 227 return -EINVAL; 228 } else if (strncmp(buf, "stop ", 5) == 0) { 229 buf += 5; 230 start = false; 231 } else 232 return -EINVAL; 233 234 ret = kstrtoul(buf, 0, &tid); 235 if (ret) 236 return ret; 237 238 if (tid >= IEEE80211_NUM_TIDS) 239 return -EINVAL; 240 241 if (tx) { 242 if (start) 243 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000); 244 else 245 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 246 } else { 247 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 248 3, true); 249 ret = 0; 250 } 251 252 return ret ?: count; 253 } 254 STA_OPS_RW(agg_status); 255 256 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 257 size_t count, loff_t *ppos) 258 { 259 #define PRINT_HT_CAP(_cond, _str) \ 260 do { \ 261 if (_cond) \ 262 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ 263 } while (0) 264 char buf[512], *p = buf; 265 int i; 266 struct sta_info *sta = file->private_data; 267 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; 268 269 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", 270 htc->ht_supported ? "" : "not "); 271 if (htc->ht_supported) { 272 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); 273 274 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 275 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 276 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 277 278 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 279 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 280 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 281 282 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 283 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 284 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 285 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 286 287 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 288 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 289 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 290 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 291 292 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 293 294 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 295 "3839 bytes"); 296 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 297 "7935 bytes"); 298 299 /* 300 * For beacons and probe response this would mean the BSS 301 * does or does not allow the usage of DSSS/CCK HT40. 302 * Otherwise it means the STA does or does not use 303 * DSSS/CCK HT40. 304 */ 305 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 306 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 307 308 /* BIT(13) is reserved */ 309 310 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 311 312 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 313 314 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", 315 htc->ampdu_factor, htc->ampdu_density); 316 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); 317 318 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 319 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", 320 htc->mcs.rx_mask[i]); 321 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 322 323 /* If not set this is meaningless */ 324 if (le16_to_cpu(htc->mcs.rx_highest)) { 325 p += scnprintf(p, sizeof(buf)+buf-p, 326 "MCS rx highest: %d Mbps\n", 327 le16_to_cpu(htc->mcs.rx_highest)); 328 } 329 330 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", 331 htc->mcs.tx_params); 332 } 333 334 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 335 } 336 STA_OPS(ht_capa); 337 338 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, 339 size_t count, loff_t *ppos) 340 { 341 char buf[128], *p = buf; 342 struct sta_info *sta = file->private_data; 343 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; 344 345 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", 346 vhtc->vht_supported ? "" : "not "); 347 if (vhtc->vht_supported) { 348 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap); 349 350 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", 351 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 352 if (vhtc->vht_mcs.rx_highest) 353 p += scnprintf(p, sizeof(buf)+buf-p, 354 "MCS RX highest: %d Mbps\n", 355 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 356 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", 357 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 358 if (vhtc->vht_mcs.tx_highest) 359 p += scnprintf(p, sizeof(buf)+buf-p, 360 "MCS TX highest: %d Mbps\n", 361 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 362 } 363 364 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 365 } 366 STA_OPS(vht_capa); 367 368 static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf, 369 size_t count, loff_t *ppos) 370 { 371 struct sta_info *sta = file->private_data; 372 struct rate_info rinfo; 373 u16 rate; 374 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo); 375 rate = cfg80211_calculate_bitrate(&rinfo); 376 377 return mac80211_format_buffer(userbuf, count, ppos, 378 "%d.%d MBit/s\n", 379 rate/10, rate%10); 380 } 381 STA_OPS(current_tx_rate); 382 383 static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf, 384 size_t count, loff_t *ppos) 385 { 386 struct sta_info *sta = file->private_data; 387 struct rate_info rinfo; 388 u16 rate; 389 390 sta_set_rate_info_rx(sta, &rinfo); 391 392 rate = cfg80211_calculate_bitrate(&rinfo); 393 394 return mac80211_format_buffer(userbuf, count, ppos, 395 "%d.%d MBit/s\n", 396 rate/10, rate%10); 397 } 398 STA_OPS(last_rx_rate); 399 400 static int 401 sta_tx_latency_stat_header(struct ieee80211_tx_latency_bin_ranges *tx_latency, 402 char *buf, int pos, int bufsz) 403 { 404 int i; 405 int range_count = tx_latency->n_ranges; 406 u32 *bin_ranges = tx_latency->ranges; 407 408 pos += scnprintf(buf + pos, bufsz - pos, 409 "Station\t\t\tTID\tMax\tAvg"); 410 if (range_count) { 411 pos += scnprintf(buf + pos, bufsz - pos, 412 "\t<=%d", bin_ranges[0]); 413 for (i = 0; i < range_count - 1; i++) 414 pos += scnprintf(buf + pos, bufsz - pos, "\t%d-%d", 415 bin_ranges[i], bin_ranges[i+1]); 416 pos += scnprintf(buf + pos, bufsz - pos, 417 "\t%d<", bin_ranges[range_count - 1]); 418 } 419 420 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 421 422 return pos; 423 } 424 425 static int 426 sta_tx_latency_stat_table(struct ieee80211_tx_latency_bin_ranges *tx_lat_range, 427 struct ieee80211_tx_latency_stat *tx_lat, 428 char *buf, int pos, int bufsz, int tid) 429 { 430 u32 avg = 0; 431 int j; 432 int bin_count = tx_lat->bin_count; 433 434 pos += scnprintf(buf + pos, bufsz - pos, "\t\t\t%d", tid); 435 /* make sure you don't divide in 0 */ 436 if (tx_lat->counter) 437 avg = tx_lat->sum / tx_lat->counter; 438 439 pos += scnprintf(buf + pos, bufsz - pos, "\t%d\t%d", 440 tx_lat->max, avg); 441 442 if (tx_lat_range->n_ranges && tx_lat->bins) 443 for (j = 0; j < bin_count; j++) 444 pos += scnprintf(buf + pos, bufsz - pos, 445 "\t%d", tx_lat->bins[j]); 446 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 447 448 return pos; 449 } 450 451 /* 452 * Output Tx latency statistics station && restart all statistics information 453 */ 454 static ssize_t sta_tx_latency_stat_read(struct file *file, 455 char __user *userbuf, 456 size_t count, loff_t *ppos) 457 { 458 struct sta_info *sta = file->private_data; 459 struct ieee80211_local *local = sta->local; 460 struct ieee80211_tx_latency_bin_ranges *tx_latency; 461 char *buf; 462 int bufsz, ret, i; 463 int pos = 0; 464 465 bufsz = 20 * IEEE80211_NUM_TIDS * 466 sizeof(struct ieee80211_tx_latency_stat); 467 buf = kzalloc(bufsz, GFP_KERNEL); 468 if (!buf) 469 return -ENOMEM; 470 471 rcu_read_lock(); 472 473 tx_latency = rcu_dereference(local->tx_latency); 474 475 if (!sta->tx_lat) { 476 pos += scnprintf(buf + pos, bufsz - pos, 477 "Tx latency statistics are not enabled\n"); 478 goto unlock; 479 } 480 481 pos = sta_tx_latency_stat_header(tx_latency, buf, pos, bufsz); 482 483 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", sta->sta.addr); 484 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 485 pos = sta_tx_latency_stat_table(tx_latency, &sta->tx_lat[i], 486 buf, pos, bufsz, i); 487 unlock: 488 rcu_read_unlock(); 489 490 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); 491 kfree(buf); 492 493 return ret; 494 } 495 STA_OPS(tx_latency_stat); 496 497 static ssize_t sta_tx_latency_stat_reset_write(struct file *file, 498 const char __user *userbuf, 499 size_t count, loff_t *ppos) 500 { 501 u32 *bins; 502 int bin_count; 503 struct sta_info *sta = file->private_data; 504 int i; 505 506 if (!sta->tx_lat) 507 return -EINVAL; 508 509 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 510 bins = sta->tx_lat[i].bins; 511 bin_count = sta->tx_lat[i].bin_count; 512 513 sta->tx_lat[i].max = 0; 514 sta->tx_lat[i].sum = 0; 515 sta->tx_lat[i].counter = 0; 516 517 if (bin_count) 518 memset(bins, 0, bin_count * sizeof(u32)); 519 } 520 521 return count; 522 } 523 STA_OPS_W(tx_latency_stat_reset); 524 525 #define DEBUGFS_ADD(name) \ 526 debugfs_create_file(#name, 0400, \ 527 sta->debugfs.dir, sta, &sta_ ##name## _ops); 528 529 #define DEBUGFS_ADD_COUNTER(name, field) \ 530 if (sizeof(sta->field) == sizeof(u32)) \ 531 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \ 532 (u32 *) &sta->field); \ 533 else \ 534 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \ 535 (u64 *) &sta->field); 536 537 void ieee80211_sta_debugfs_add(struct sta_info *sta) 538 { 539 struct ieee80211_local *local = sta->local; 540 struct ieee80211_sub_if_data *sdata = sta->sdata; 541 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 542 u8 mac[3*ETH_ALEN]; 543 544 sta->debugfs.add_has_run = true; 545 546 if (!stations_dir) 547 return; 548 549 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 550 551 /* 552 * This might fail due to a race condition: 553 * When mac80211 unlinks a station, the debugfs entries 554 * remain, but it is already possible to link a new 555 * station with the same address which triggers adding 556 * it to debugfs; therefore, if the old station isn't 557 * destroyed quickly enough the old station's debugfs 558 * dir might still be around. 559 */ 560 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); 561 if (!sta->debugfs.dir) 562 return; 563 564 DEBUGFS_ADD(flags); 565 DEBUGFS_ADD(num_ps_buf_frames); 566 DEBUGFS_ADD(inactive_ms); 567 DEBUGFS_ADD(connected_time); 568 DEBUGFS_ADD(last_seq_ctrl); 569 DEBUGFS_ADD(agg_status); 570 DEBUGFS_ADD(dev); 571 DEBUGFS_ADD(last_signal); 572 DEBUGFS_ADD(beacon_loss_count); 573 DEBUGFS_ADD(ht_capa); 574 DEBUGFS_ADD(vht_capa); 575 DEBUGFS_ADD(last_ack_signal); 576 DEBUGFS_ADD(current_tx_rate); 577 DEBUGFS_ADD(last_rx_rate); 578 DEBUGFS_ADD(tx_latency_stat); 579 DEBUGFS_ADD(tx_latency_stat_reset); 580 581 DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); 582 DEBUGFS_ADD_COUNTER(tx_packets, tx_packets); 583 DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes); 584 DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes); 585 DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates); 586 DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments); 587 DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped); 588 DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments); 589 DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count); 590 DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed); 591 DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count); 592 593 if (sizeof(sta->driver_buffered_tids) == sizeof(u32)) 594 debugfs_create_x32("driver_buffered_tids", 0400, 595 sta->debugfs.dir, 596 (u32 *)&sta->driver_buffered_tids); 597 else 598 debugfs_create_x64("driver_buffered_tids", 0400, 599 sta->debugfs.dir, 600 (u64 *)&sta->driver_buffered_tids); 601 602 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); 603 } 604 605 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 606 { 607 struct ieee80211_local *local = sta->local; 608 struct ieee80211_sub_if_data *sdata = sta->sdata; 609 610 drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); 611 debugfs_remove_recursive(sta->debugfs.dir); 612 sta->debugfs.dir = NULL; 613 } 614