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%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(TDLS_INITIATOR), 86 TEST(TDLS_CHAN_SWITCH), TEST(TDLS_OFF_CHANNEL), 87 TEST(4ADDR_EVENT), TEST(INSERTED), 88 TEST(RATE_CONTROL), TEST(TOFFSET_KNOWN), 89 TEST(MPSP_OWNER), TEST(MPSP_RECIPIENT)); 90 #undef TEST 91 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 92 } 93 STA_OPS(flags); 94 95 static ssize_t sta_num_ps_buf_frames_read(struct file *file, 96 char __user *userbuf, 97 size_t count, loff_t *ppos) 98 { 99 struct sta_info *sta = file->private_data; 100 char buf[17*IEEE80211_NUM_ACS], *p = buf; 101 int ac; 102 103 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 104 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, 105 skb_queue_len(&sta->ps_tx_buf[ac]) + 106 skb_queue_len(&sta->tx_filtered[ac])); 107 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 108 } 109 STA_OPS(num_ps_buf_frames); 110 111 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, 112 size_t count, loff_t *ppos) 113 { 114 struct sta_info *sta = file->private_data; 115 return mac80211_format_buffer(userbuf, count, ppos, "%d\n", 116 jiffies_to_msecs(jiffies - sta->last_rx)); 117 } 118 STA_OPS(inactive_ms); 119 120 121 static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf, 122 size_t count, loff_t *ppos) 123 { 124 struct sta_info *sta = file->private_data; 125 struct timespec uptime; 126 struct tm result; 127 long connected_time_secs; 128 char buf[100]; 129 int res; 130 ktime_get_ts(&uptime); 131 connected_time_secs = uptime.tv_sec - sta->last_connected; 132 time_to_tm(connected_time_secs, 0, &result); 133 result.tm_year -= 70; 134 result.tm_mday -= 1; 135 res = scnprintf(buf, sizeof(buf), 136 "years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n", 137 result.tm_year, result.tm_mon, result.tm_mday, 138 result.tm_hour, result.tm_min, result.tm_sec); 139 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 140 } 141 STA_OPS(connected_time); 142 143 144 145 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, 146 size_t count, loff_t *ppos) 147 { 148 char buf[15*IEEE80211_NUM_TIDS], *p = buf; 149 int i; 150 struct sta_info *sta = file->private_data; 151 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 152 p += scnprintf(p, sizeof(buf)+buf-p, "%x ", 153 le16_to_cpu(sta->last_seq_ctrl[i])); 154 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 155 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 156 } 157 STA_OPS(last_seq_ctrl); 158 159 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 160 size_t count, loff_t *ppos) 161 { 162 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; 163 int i; 164 struct sta_info *sta = file->private_data; 165 struct tid_ampdu_rx *tid_rx; 166 struct tid_ampdu_tx *tid_tx; 167 168 rcu_read_lock(); 169 170 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", 171 sta->ampdu_mlme.dialog_token_allocator + 1); 172 p += scnprintf(p, sizeof(buf) + buf - p, 173 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 174 175 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 176 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 177 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 178 179 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); 180 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx); 181 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 182 tid_rx ? tid_rx->dialog_token : 0); 183 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", 184 tid_rx ? tid_rx->ssn : 0); 185 186 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); 187 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 188 tid_tx ? tid_tx->dialog_token : 0); 189 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", 190 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 191 p += scnprintf(p, sizeof(buf) + buf - p, "\n"); 192 } 193 rcu_read_unlock(); 194 195 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 196 } 197 198 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 199 size_t count, loff_t *ppos) 200 { 201 char _buf[12] = {}, *buf = _buf; 202 struct sta_info *sta = file->private_data; 203 bool start, tx; 204 unsigned long tid; 205 int ret; 206 207 if (count > sizeof(_buf)) 208 return -EINVAL; 209 210 if (copy_from_user(buf, userbuf, count)) 211 return -EFAULT; 212 213 buf[sizeof(_buf) - 1] = '\0'; 214 215 if (strncmp(buf, "tx ", 3) == 0) { 216 buf += 3; 217 tx = true; 218 } else if (strncmp(buf, "rx ", 3) == 0) { 219 buf += 3; 220 tx = false; 221 } else 222 return -EINVAL; 223 224 if (strncmp(buf, "start ", 6) == 0) { 225 buf += 6; 226 start = true; 227 if (!tx) 228 return -EINVAL; 229 } else if (strncmp(buf, "stop ", 5) == 0) { 230 buf += 5; 231 start = false; 232 } else 233 return -EINVAL; 234 235 ret = kstrtoul(buf, 0, &tid); 236 if (ret) 237 return ret; 238 239 if (tid >= IEEE80211_NUM_TIDS) 240 return -EINVAL; 241 242 if (tx) { 243 if (start) 244 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000); 245 else 246 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 247 } else { 248 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 249 3, true); 250 ret = 0; 251 } 252 253 return ret ?: count; 254 } 255 STA_OPS_RW(agg_status); 256 257 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 258 size_t count, loff_t *ppos) 259 { 260 #define PRINT_HT_CAP(_cond, _str) \ 261 do { \ 262 if (_cond) \ 263 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ 264 } while (0) 265 char buf[512], *p = buf; 266 int i; 267 struct sta_info *sta = file->private_data; 268 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; 269 270 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", 271 htc->ht_supported ? "" : "not "); 272 if (htc->ht_supported) { 273 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); 274 275 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 276 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 277 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 278 279 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 280 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 281 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 282 283 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 284 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 285 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 286 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 287 288 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 289 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 290 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 291 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 292 293 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 294 295 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 296 "3839 bytes"); 297 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 298 "7935 bytes"); 299 300 /* 301 * For beacons and probe response this would mean the BSS 302 * does or does not allow the usage of DSSS/CCK HT40. 303 * Otherwise it means the STA does or does not use 304 * DSSS/CCK HT40. 305 */ 306 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 307 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 308 309 /* BIT(13) is reserved */ 310 311 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 312 313 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 314 315 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", 316 htc->ampdu_factor, htc->ampdu_density); 317 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); 318 319 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 320 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", 321 htc->mcs.rx_mask[i]); 322 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 323 324 /* If not set this is meaningless */ 325 if (le16_to_cpu(htc->mcs.rx_highest)) { 326 p += scnprintf(p, sizeof(buf)+buf-p, 327 "MCS rx highest: %d Mbps\n", 328 le16_to_cpu(htc->mcs.rx_highest)); 329 } 330 331 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", 332 htc->mcs.tx_params); 333 } 334 335 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 336 } 337 STA_OPS(ht_capa); 338 339 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, 340 size_t count, loff_t *ppos) 341 { 342 char buf[128], *p = buf; 343 struct sta_info *sta = file->private_data; 344 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; 345 346 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", 347 vhtc->vht_supported ? "" : "not "); 348 if (vhtc->vht_supported) { 349 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap); 350 351 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", 352 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 353 if (vhtc->vht_mcs.rx_highest) 354 p += scnprintf(p, sizeof(buf)+buf-p, 355 "MCS RX highest: %d Mbps\n", 356 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 357 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", 358 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 359 if (vhtc->vht_mcs.tx_highest) 360 p += scnprintf(p, sizeof(buf)+buf-p, 361 "MCS TX highest: %d Mbps\n", 362 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 363 } 364 365 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 366 } 367 STA_OPS(vht_capa); 368 369 static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf, 370 size_t count, loff_t *ppos) 371 { 372 struct sta_info *sta = file->private_data; 373 struct rate_info rinfo; 374 u16 rate; 375 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo); 376 rate = cfg80211_calculate_bitrate(&rinfo); 377 378 return mac80211_format_buffer(userbuf, count, ppos, 379 "%d.%d MBit/s\n", 380 rate/10, rate%10); 381 } 382 STA_OPS(current_tx_rate); 383 384 static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf, 385 size_t count, loff_t *ppos) 386 { 387 struct sta_info *sta = file->private_data; 388 struct rate_info rinfo; 389 u16 rate; 390 391 sta_set_rate_info_rx(sta, &rinfo); 392 393 rate = cfg80211_calculate_bitrate(&rinfo); 394 395 return mac80211_format_buffer(userbuf, count, ppos, 396 "%d.%d MBit/s\n", 397 rate/10, rate%10); 398 } 399 STA_OPS(last_rx_rate); 400 401 static int 402 sta_tx_latency_stat_header(struct ieee80211_tx_latency_bin_ranges *tx_latency, 403 char *buf, int pos, int bufsz) 404 { 405 int i; 406 int range_count = tx_latency->n_ranges; 407 u32 *bin_ranges = tx_latency->ranges; 408 409 pos += scnprintf(buf + pos, bufsz - pos, 410 "Station\t\t\tTID\tMax\tAvg"); 411 if (range_count) { 412 pos += scnprintf(buf + pos, bufsz - pos, 413 "\t<=%d", bin_ranges[0]); 414 for (i = 0; i < range_count - 1; i++) 415 pos += scnprintf(buf + pos, bufsz - pos, "\t%d-%d", 416 bin_ranges[i], bin_ranges[i+1]); 417 pos += scnprintf(buf + pos, bufsz - pos, 418 "\t%d<", bin_ranges[range_count - 1]); 419 } 420 421 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 422 423 return pos; 424 } 425 426 static int 427 sta_tx_latency_stat_table(struct ieee80211_tx_latency_bin_ranges *tx_lat_range, 428 struct ieee80211_tx_latency_stat *tx_lat, 429 char *buf, int pos, int bufsz, int tid) 430 { 431 u32 avg = 0; 432 int j; 433 int bin_count = tx_lat->bin_count; 434 435 pos += scnprintf(buf + pos, bufsz - pos, "\t\t\t%d", tid); 436 /* make sure you don't divide in 0 */ 437 if (tx_lat->counter) 438 avg = tx_lat->sum / tx_lat->counter; 439 440 pos += scnprintf(buf + pos, bufsz - pos, "\t%d\t%d", 441 tx_lat->max, avg); 442 443 if (tx_lat_range->n_ranges && tx_lat->bins) 444 for (j = 0; j < bin_count; j++) 445 pos += scnprintf(buf + pos, bufsz - pos, 446 "\t%d", tx_lat->bins[j]); 447 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 448 449 return pos; 450 } 451 452 /* 453 * Output Tx latency statistics station && restart all statistics information 454 */ 455 static ssize_t sta_tx_latency_stat_read(struct file *file, 456 char __user *userbuf, 457 size_t count, loff_t *ppos) 458 { 459 struct sta_info *sta = file->private_data; 460 struct ieee80211_local *local = sta->local; 461 struct ieee80211_tx_latency_bin_ranges *tx_latency; 462 char *buf; 463 int bufsz, ret, i; 464 int pos = 0; 465 466 bufsz = 20 * IEEE80211_NUM_TIDS * 467 sizeof(struct ieee80211_tx_latency_stat); 468 buf = kzalloc(bufsz, GFP_KERNEL); 469 if (!buf) 470 return -ENOMEM; 471 472 rcu_read_lock(); 473 474 tx_latency = rcu_dereference(local->tx_latency); 475 476 if (!sta->tx_lat) { 477 pos += scnprintf(buf + pos, bufsz - pos, 478 "Tx latency statistics are not enabled\n"); 479 goto unlock; 480 } 481 482 pos = sta_tx_latency_stat_header(tx_latency, buf, pos, bufsz); 483 484 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", sta->sta.addr); 485 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 486 pos = sta_tx_latency_stat_table(tx_latency, &sta->tx_lat[i], 487 buf, pos, bufsz, i); 488 unlock: 489 rcu_read_unlock(); 490 491 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); 492 kfree(buf); 493 494 return ret; 495 } 496 STA_OPS(tx_latency_stat); 497 498 static ssize_t sta_tx_latency_stat_reset_write(struct file *file, 499 const char __user *userbuf, 500 size_t count, loff_t *ppos) 501 { 502 u32 *bins; 503 int bin_count; 504 struct sta_info *sta = file->private_data; 505 int i; 506 507 if (!sta->tx_lat) 508 return -EINVAL; 509 510 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 511 bins = sta->tx_lat[i].bins; 512 bin_count = sta->tx_lat[i].bin_count; 513 514 sta->tx_lat[i].max = 0; 515 sta->tx_lat[i].sum = 0; 516 sta->tx_lat[i].counter = 0; 517 518 if (bin_count) 519 memset(bins, 0, bin_count * sizeof(u32)); 520 } 521 522 return count; 523 } 524 STA_OPS_W(tx_latency_stat_reset); 525 526 #define DEBUGFS_ADD(name) \ 527 debugfs_create_file(#name, 0400, \ 528 sta->debugfs.dir, sta, &sta_ ##name## _ops); 529 530 #define DEBUGFS_ADD_COUNTER(name, field) \ 531 if (sizeof(sta->field) == sizeof(u32)) \ 532 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \ 533 (u32 *) &sta->field); \ 534 else \ 535 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \ 536 (u64 *) &sta->field); 537 538 void ieee80211_sta_debugfs_add(struct sta_info *sta) 539 { 540 struct ieee80211_local *local = sta->local; 541 struct ieee80211_sub_if_data *sdata = sta->sdata; 542 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 543 u8 mac[3*ETH_ALEN]; 544 545 sta->debugfs.add_has_run = true; 546 547 if (!stations_dir) 548 return; 549 550 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 551 552 /* 553 * This might fail due to a race condition: 554 * When mac80211 unlinks a station, the debugfs entries 555 * remain, but it is already possible to link a new 556 * station with the same address which triggers adding 557 * it to debugfs; therefore, if the old station isn't 558 * destroyed quickly enough the old station's debugfs 559 * dir might still be around. 560 */ 561 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); 562 if (!sta->debugfs.dir) 563 return; 564 565 DEBUGFS_ADD(flags); 566 DEBUGFS_ADD(num_ps_buf_frames); 567 DEBUGFS_ADD(inactive_ms); 568 DEBUGFS_ADD(connected_time); 569 DEBUGFS_ADD(last_seq_ctrl); 570 DEBUGFS_ADD(agg_status); 571 DEBUGFS_ADD(dev); 572 DEBUGFS_ADD(last_signal); 573 DEBUGFS_ADD(beacon_loss_count); 574 DEBUGFS_ADD(ht_capa); 575 DEBUGFS_ADD(vht_capa); 576 DEBUGFS_ADD(last_ack_signal); 577 DEBUGFS_ADD(current_tx_rate); 578 DEBUGFS_ADD(last_rx_rate); 579 DEBUGFS_ADD(tx_latency_stat); 580 DEBUGFS_ADD(tx_latency_stat_reset); 581 582 DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); 583 DEBUGFS_ADD_COUNTER(tx_packets, tx_packets); 584 DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes); 585 DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes); 586 DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates); 587 DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments); 588 DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped); 589 DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments); 590 DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count); 591 DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed); 592 DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count); 593 594 if (sizeof(sta->driver_buffered_tids) == sizeof(u32)) 595 debugfs_create_x32("driver_buffered_tids", 0400, 596 sta->debugfs.dir, 597 (u32 *)&sta->driver_buffered_tids); 598 else 599 debugfs_create_x64("driver_buffered_tids", 0400, 600 sta->debugfs.dir, 601 (u64 *)&sta->driver_buffered_tids); 602 603 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); 604 } 605 606 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 607 { 608 struct ieee80211_local *local = sta->local; 609 struct ieee80211_sub_if_data *sdata = sta->sdata; 610 611 drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir); 612 debugfs_remove_recursive(sta->debugfs.dir); 613 sta->debugfs.dir = NULL; 614 } 615