1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright 2003-2005 Devicescape Software, Inc. 4 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> 5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2014 Intel Mobile Communications GmbH 7 * Copyright(c) 2016 Intel Deutschland GmbH 8 * Copyright (C) 2018 - 2021 Intel Corporation 9 */ 10 11 #include <linux/debugfs.h> 12 #include <linux/ieee80211.h> 13 #include "ieee80211_i.h" 14 #include "debugfs.h" 15 #include "debugfs_sta.h" 16 #include "sta_info.h" 17 #include "driver-ops.h" 18 19 /* sta attributtes */ 20 21 #define STA_READ(name, field, format_string) \ 22 static ssize_t sta_ ##name## _read(struct file *file, \ 23 char __user *userbuf, \ 24 size_t count, loff_t *ppos) \ 25 { \ 26 struct sta_info *sta = file->private_data; \ 27 return mac80211_format_buffer(userbuf, count, ppos, \ 28 format_string, sta->field); \ 29 } 30 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n") 31 32 #define STA_OPS(name) \ 33 static const struct file_operations sta_ ##name## _ops = { \ 34 .read = sta_##name##_read, \ 35 .open = simple_open, \ 36 .llseek = generic_file_llseek, \ 37 } 38 39 #define STA_OPS_RW(name) \ 40 static const struct file_operations sta_ ##name## _ops = { \ 41 .read = sta_##name##_read, \ 42 .write = sta_##name##_write, \ 43 .open = simple_open, \ 44 .llseek = generic_file_llseek, \ 45 } 46 47 #define STA_FILE(name, field, format) \ 48 STA_READ_##format(name, field) \ 49 STA_OPS(name) 50 51 STA_FILE(aid, sta.aid, D); 52 53 static const char * const sta_flag_names[] = { 54 #define FLAG(F) [WLAN_STA_##F] = #F 55 FLAG(AUTH), 56 FLAG(ASSOC), 57 FLAG(PS_STA), 58 FLAG(AUTHORIZED), 59 FLAG(SHORT_PREAMBLE), 60 FLAG(WDS), 61 FLAG(CLEAR_PS_FILT), 62 FLAG(MFP), 63 FLAG(BLOCK_BA), 64 FLAG(PS_DRIVER), 65 FLAG(PSPOLL), 66 FLAG(TDLS_PEER), 67 FLAG(TDLS_PEER_AUTH), 68 FLAG(TDLS_INITIATOR), 69 FLAG(TDLS_CHAN_SWITCH), 70 FLAG(TDLS_OFF_CHANNEL), 71 FLAG(TDLS_WIDER_BW), 72 FLAG(UAPSD), 73 FLAG(SP), 74 FLAG(4ADDR_EVENT), 75 FLAG(INSERTED), 76 FLAG(RATE_CONTROL), 77 FLAG(TOFFSET_KNOWN), 78 FLAG(MPSP_OWNER), 79 FLAG(MPSP_RECIPIENT), 80 FLAG(PS_DELIVER), 81 FLAG(USES_ENCRYPTION), 82 FLAG(DECAP_OFFLOAD), 83 #undef FLAG 84 }; 85 86 static ssize_t sta_flags_read(struct file *file, char __user *userbuf, 87 size_t count, loff_t *ppos) 88 { 89 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf; 90 char *end = buf + sizeof(buf) - 1; 91 struct sta_info *sta = file->private_data; 92 unsigned int flg; 93 94 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS); 95 96 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) { 97 if (test_sta_flag(sta, flg)) 98 pos += scnprintf(pos, end - pos, "%s\n", 99 sta_flag_names[flg]); 100 } 101 102 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); 103 } 104 STA_OPS(flags); 105 106 static ssize_t sta_num_ps_buf_frames_read(struct file *file, 107 char __user *userbuf, 108 size_t count, loff_t *ppos) 109 { 110 struct sta_info *sta = file->private_data; 111 char buf[17*IEEE80211_NUM_ACS], *p = buf; 112 int ac; 113 114 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 115 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, 116 skb_queue_len(&sta->ps_tx_buf[ac]) + 117 skb_queue_len(&sta->tx_filtered[ac])); 118 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 119 } 120 STA_OPS(num_ps_buf_frames); 121 122 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, 123 size_t count, loff_t *ppos) 124 { 125 char buf[15*IEEE80211_NUM_TIDS], *p = buf; 126 int i; 127 struct sta_info *sta = file->private_data; 128 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 129 p += scnprintf(p, sizeof(buf)+buf-p, "%x ", 130 le16_to_cpu(sta->last_seq_ctrl[i])); 131 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 132 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 133 } 134 STA_OPS(last_seq_ctrl); 135 136 #define AQM_TXQ_ENTRY_LEN 130 137 138 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf, 139 size_t count, loff_t *ppos) 140 { 141 struct sta_info *sta = file->private_data; 142 struct ieee80211_local *local = sta->local; 143 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2); 144 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 145 struct txq_info *txqi; 146 ssize_t rv; 147 int i; 148 149 if (!buf) 150 return -ENOMEM; 151 152 spin_lock_bh(&local->fq.lock); 153 rcu_read_lock(); 154 155 p += scnprintf(p, 156 bufsz + buf - p, 157 "target %uus interval %uus ecn %s\n", 158 codel_time_to_us(sta->cparams.target), 159 codel_time_to_us(sta->cparams.interval), 160 sta->cparams.ecn ? "yes" : "no"); 161 p += scnprintf(p, 162 bufsz + buf - p, 163 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n"); 164 165 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 166 if (!sta->sta.txq[i]) 167 continue; 168 txqi = to_txq_info(sta->sta.txq[i]); 169 p += scnprintf(p, bufsz + buf - p, 170 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n", 171 txqi->txq.tid, 172 txqi->txq.ac, 173 txqi->tin.backlog_bytes, 174 txqi->tin.backlog_packets, 175 txqi->tin.flows, 176 txqi->cstats.drop_count, 177 txqi->cstats.ecn_mark, 178 txqi->tin.overlimit, 179 txqi->tin.collisions, 180 txqi->tin.tx_bytes, 181 txqi->tin.tx_packets, 182 txqi->flags, 183 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN", 184 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "", 185 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : ""); 186 } 187 188 rcu_read_unlock(); 189 spin_unlock_bh(&local->fq.lock); 190 191 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 192 kfree(buf); 193 return rv; 194 } 195 STA_OPS(aqm); 196 197 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf, 198 size_t count, loff_t *ppos) 199 { 200 struct sta_info *sta = file->private_data; 201 struct ieee80211_local *local = sta->sdata->local; 202 size_t bufsz = 400; 203 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 204 u64 rx_airtime = 0, tx_airtime = 0; 205 s32 deficit[IEEE80211_NUM_ACS]; 206 ssize_t rv; 207 int ac; 208 209 if (!buf) 210 return -ENOMEM; 211 212 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 213 spin_lock_bh(&local->active_txq_lock[ac]); 214 rx_airtime += sta->airtime[ac].rx_airtime; 215 tx_airtime += sta->airtime[ac].tx_airtime; 216 deficit[ac] = sta->airtime[ac].deficit; 217 spin_unlock_bh(&local->active_txq_lock[ac]); 218 } 219 220 p += scnprintf(p, bufsz + buf - p, 221 "RX: %llu us\nTX: %llu us\nWeight: %u\n" 222 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n", 223 rx_airtime, tx_airtime, sta->airtime_weight, 224 deficit[0], deficit[1], deficit[2], deficit[3]); 225 226 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 227 kfree(buf); 228 return rv; 229 } 230 231 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf, 232 size_t count, loff_t *ppos) 233 { 234 struct sta_info *sta = file->private_data; 235 struct ieee80211_local *local = sta->sdata->local; 236 int ac; 237 238 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 239 spin_lock_bh(&local->active_txq_lock[ac]); 240 sta->airtime[ac].rx_airtime = 0; 241 sta->airtime[ac].tx_airtime = 0; 242 sta->airtime[ac].deficit = sta->airtime_weight; 243 spin_unlock_bh(&local->active_txq_lock[ac]); 244 } 245 246 return count; 247 } 248 STA_OPS_RW(airtime); 249 250 static ssize_t sta_aql_read(struct file *file, char __user *userbuf, 251 size_t count, loff_t *ppos) 252 { 253 struct sta_info *sta = file->private_data; 254 struct ieee80211_local *local = sta->sdata->local; 255 size_t bufsz = 400; 256 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 257 u32 q_depth[IEEE80211_NUM_ACS]; 258 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS]; 259 ssize_t rv; 260 int ac; 261 262 if (!buf) 263 return -ENOMEM; 264 265 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 266 spin_lock_bh(&local->active_txq_lock[ac]); 267 q_limit_l[ac] = sta->airtime[ac].aql_limit_low; 268 q_limit_h[ac] = sta->airtime[ac].aql_limit_high; 269 spin_unlock_bh(&local->active_txq_lock[ac]); 270 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending); 271 } 272 273 p += scnprintf(p, bufsz + buf - p, 274 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n" 275 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n", 276 q_depth[0], q_depth[1], q_depth[2], q_depth[3], 277 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1], 278 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]); 279 280 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 281 kfree(buf); 282 return rv; 283 } 284 285 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf, 286 size_t count, loff_t *ppos) 287 { 288 struct sta_info *sta = file->private_data; 289 u32 ac, q_limit_l, q_limit_h; 290 char _buf[100] = {}, *buf = _buf; 291 292 if (count > sizeof(_buf)) 293 return -EINVAL; 294 295 if (copy_from_user(buf, userbuf, count)) 296 return -EFAULT; 297 298 buf[sizeof(_buf) - 1] = '\0'; 299 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h) 300 != 3) 301 return -EINVAL; 302 303 if (ac >= IEEE80211_NUM_ACS) 304 return -EINVAL; 305 306 sta->airtime[ac].aql_limit_low = q_limit_l; 307 sta->airtime[ac].aql_limit_high = q_limit_h; 308 309 return count; 310 } 311 STA_OPS_RW(aql); 312 313 314 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 315 size_t count, loff_t *ppos) 316 { 317 char *buf, *p; 318 ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40; 319 int i; 320 struct sta_info *sta = file->private_data; 321 struct tid_ampdu_rx *tid_rx; 322 struct tid_ampdu_tx *tid_tx; 323 ssize_t ret; 324 325 buf = kzalloc(bufsz, GFP_KERNEL); 326 if (!buf) 327 return -ENOMEM; 328 p = buf; 329 330 rcu_read_lock(); 331 332 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n", 333 sta->ampdu_mlme.dialog_token_allocator + 1); 334 p += scnprintf(p, bufsz + buf - p, 335 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 336 337 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 338 bool tid_rx_valid; 339 340 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 341 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 342 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid); 343 344 p += scnprintf(p, bufsz + buf - p, "%02d", i); 345 p += scnprintf(p, bufsz + buf - p, "\t\t%x", 346 tid_rx_valid); 347 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 348 tid_rx_valid ? 349 sta->ampdu_mlme.tid_rx_token[i] : 0); 350 p += scnprintf(p, bufsz + buf - p, "\t%#.3x", 351 tid_rx ? tid_rx->ssn : 0); 352 353 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx); 354 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 355 tid_tx ? tid_tx->dialog_token : 0); 356 p += scnprintf(p, bufsz + buf - p, "\t%03d", 357 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 358 p += scnprintf(p, bufsz + buf - p, "\n"); 359 } 360 rcu_read_unlock(); 361 362 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 363 kfree(buf); 364 return ret; 365 } 366 367 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 368 size_t count, loff_t *ppos) 369 { 370 char _buf[25] = {}, *buf = _buf; 371 struct sta_info *sta = file->private_data; 372 bool start, tx; 373 unsigned long tid; 374 char *pos; 375 int ret, timeout = 5000; 376 377 if (count > sizeof(_buf)) 378 return -EINVAL; 379 380 if (copy_from_user(buf, userbuf, count)) 381 return -EFAULT; 382 383 buf[sizeof(_buf) - 1] = '\0'; 384 pos = buf; 385 buf = strsep(&pos, " "); 386 if (!buf) 387 return -EINVAL; 388 389 if (!strcmp(buf, "tx")) 390 tx = true; 391 else if (!strcmp(buf, "rx")) 392 tx = false; 393 else 394 return -EINVAL; 395 396 buf = strsep(&pos, " "); 397 if (!buf) 398 return -EINVAL; 399 if (!strcmp(buf, "start")) { 400 start = true; 401 if (!tx) 402 return -EINVAL; 403 } else if (!strcmp(buf, "stop")) { 404 start = false; 405 } else { 406 return -EINVAL; 407 } 408 409 buf = strsep(&pos, " "); 410 if (!buf) 411 return -EINVAL; 412 if (sscanf(buf, "timeout=%d", &timeout) == 1) { 413 buf = strsep(&pos, " "); 414 if (!buf || !tx || !start) 415 return -EINVAL; 416 } 417 418 ret = kstrtoul(buf, 0, &tid); 419 if (ret || tid >= IEEE80211_NUM_TIDS) 420 return -EINVAL; 421 422 if (tx) { 423 if (start) 424 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 425 timeout); 426 else 427 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 428 } else { 429 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 430 3, true); 431 ret = 0; 432 } 433 434 return ret ?: count; 435 } 436 STA_OPS_RW(agg_status); 437 438 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 439 size_t count, loff_t *ppos) 440 { 441 #define PRINT_HT_CAP(_cond, _str) \ 442 do { \ 443 if (_cond) \ 444 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \ 445 } while (0) 446 char *buf, *p; 447 int i; 448 ssize_t bufsz = 512; 449 struct sta_info *sta = file->private_data; 450 struct ieee80211_sta_ht_cap *htc = &sta->sta.deflink.ht_cap; 451 ssize_t ret; 452 453 buf = kzalloc(bufsz, GFP_KERNEL); 454 if (!buf) 455 return -ENOMEM; 456 p = buf; 457 458 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n", 459 htc->ht_supported ? "" : "not "); 460 if (htc->ht_supported) { 461 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap); 462 463 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 464 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 465 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 466 467 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 468 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 469 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 470 471 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 472 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 473 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 474 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 475 476 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 477 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 478 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 479 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 480 481 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 482 483 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 484 "3839 bytes"); 485 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 486 "7935 bytes"); 487 488 /* 489 * For beacons and probe response this would mean the BSS 490 * does or does not allow the usage of DSSS/CCK HT40. 491 * Otherwise it means the STA does or does not use 492 * DSSS/CCK HT40. 493 */ 494 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 495 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 496 497 /* BIT(13) is reserved */ 498 499 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 500 501 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 502 503 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n", 504 htc->ampdu_factor, htc->ampdu_density); 505 p += scnprintf(p, bufsz + buf - p, "MCS mask:"); 506 507 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 508 p += scnprintf(p, bufsz + buf - p, " %.2x", 509 htc->mcs.rx_mask[i]); 510 p += scnprintf(p, bufsz + buf - p, "\n"); 511 512 /* If not set this is meaningless */ 513 if (le16_to_cpu(htc->mcs.rx_highest)) { 514 p += scnprintf(p, bufsz + buf - p, 515 "MCS rx highest: %d Mbps\n", 516 le16_to_cpu(htc->mcs.rx_highest)); 517 } 518 519 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n", 520 htc->mcs.tx_params); 521 } 522 523 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 524 kfree(buf); 525 return ret; 526 } 527 STA_OPS(ht_capa); 528 529 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, 530 size_t count, loff_t *ppos) 531 { 532 char *buf, *p; 533 struct sta_info *sta = file->private_data; 534 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.deflink.vht_cap; 535 ssize_t ret; 536 ssize_t bufsz = 512; 537 538 buf = kzalloc(bufsz, GFP_KERNEL); 539 if (!buf) 540 return -ENOMEM; 541 p = buf; 542 543 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n", 544 vhtc->vht_supported ? "" : "not "); 545 if (vhtc->vht_supported) { 546 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n", 547 vhtc->cap); 548 #define PFLAG(a, b) \ 549 do { \ 550 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \ 551 p += scnprintf(p, bufsz + buf - p, \ 552 "\t\t%s\n", b); \ 553 } while (0) 554 555 switch (vhtc->cap & 0x3) { 556 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 557 p += scnprintf(p, bufsz + buf - p, 558 "\t\tMAX-MPDU-3895\n"); 559 break; 560 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 561 p += scnprintf(p, bufsz + buf - p, 562 "\t\tMAX-MPDU-7991\n"); 563 break; 564 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 565 p += scnprintf(p, bufsz + buf - p, 566 "\t\tMAX-MPDU-11454\n"); 567 break; 568 default: 569 p += scnprintf(p, bufsz + buf - p, 570 "\t\tMAX-MPDU-UNKNOWN\n"); 571 } 572 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 573 case 0: 574 p += scnprintf(p, bufsz + buf - p, 575 "\t\t80Mhz\n"); 576 break; 577 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 578 p += scnprintf(p, bufsz + buf - p, 579 "\t\t160Mhz\n"); 580 break; 581 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 582 p += scnprintf(p, bufsz + buf - p, 583 "\t\t80+80Mhz\n"); 584 break; 585 default: 586 p += scnprintf(p, bufsz + buf - p, 587 "\t\tUNKNOWN-MHZ: 0x%x\n", 588 (vhtc->cap >> 2) & 0x3); 589 } 590 PFLAG(RXLDPC, "RXLDPC"); 591 PFLAG(SHORT_GI_80, "SHORT-GI-80"); 592 PFLAG(SHORT_GI_160, "SHORT-GI-160"); 593 PFLAG(TXSTBC, "TXSTBC"); 594 p += scnprintf(p, bufsz + buf - p, 595 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7); 596 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE"); 597 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE"); 598 p += scnprintf(p, bufsz + buf - p, 599 "\t\tBEAMFORMEE-STS: 0x%x\n", 600 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >> 601 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 602 p += scnprintf(p, bufsz + buf - p, 603 "\t\tSOUNDING-DIMENSIONS: 0x%x\n", 604 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK) 605 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 606 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE"); 607 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE"); 608 PFLAG(VHT_TXOP_PS, "TXOP-PS"); 609 PFLAG(HTC_VHT, "HTC-VHT"); 610 p += scnprintf(p, bufsz + buf - p, 611 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n", 612 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >> 613 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT); 614 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB, 615 "LINK-ADAPTATION-VHT-UNSOL-MFB"); 616 p += scnprintf(p, bufsz + buf - p, 617 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n", 618 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26); 619 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN"); 620 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN"); 621 622 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n", 623 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 624 if (vhtc->vht_mcs.rx_highest) 625 p += scnprintf(p, bufsz + buf - p, 626 "MCS RX highest: %d Mbps\n", 627 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 628 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n", 629 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 630 if (vhtc->vht_mcs.tx_highest) 631 p += scnprintf(p, bufsz + buf - p, 632 "MCS TX highest: %d Mbps\n", 633 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 634 #undef PFLAG 635 } 636 637 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 638 kfree(buf); 639 return ret; 640 } 641 STA_OPS(vht_capa); 642 643 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf, 644 size_t count, loff_t *ppos) 645 { 646 char *buf, *p; 647 size_t buf_sz = PAGE_SIZE; 648 struct sta_info *sta = file->private_data; 649 struct ieee80211_sta_he_cap *hec = &sta->sta.deflink.he_cap; 650 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; 651 u8 ppe_size; 652 u8 *cap; 653 int i; 654 ssize_t ret; 655 656 buf = kmalloc(buf_sz, GFP_KERNEL); 657 if (!buf) 658 return -ENOMEM; 659 p = buf; 660 661 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", 662 hec->has_he ? "" : "not "); 663 if (!hec->has_he) 664 goto out; 665 666 cap = hec->he_cap_elem.mac_cap_info; 667 p += scnprintf(p, buf_sz + buf - p, 668 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 669 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]); 670 671 #define PRINT(fmt, ...) \ 672 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 673 ##__VA_ARGS__) 674 675 #define PFLAG(t, n, a, b) \ 676 do { \ 677 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ 678 PRINT("%s", b); \ 679 } while (0) 680 681 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ 682 do { \ 683 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ 684 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ 685 PRINT(fmt, (s << idx) + (m * idx)); \ 686 } while (0) 687 688 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ 689 do { \ 690 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ 691 PRINT("%s", b); \ 692 break; \ 693 } \ 694 PFLAG_RANGE(t, i, n, s, m, off, fmt); \ 695 } while (0) 696 697 PFLAG(MAC, 0, HTC_HE, "HTC-HE"); 698 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); 699 PFLAG(MAC, 0, TWT_RES, "TWT-RES"); 700 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, 701 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); 702 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, 703 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); 704 705 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, 706 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); 707 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, 708 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); 709 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1, 710 "MULTI-TID-AGG-RX-QOS-%d"); 711 712 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { 713 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { 714 case 0: 715 PRINT("LINK-ADAPTATION-NO-FEEDBACK"); 716 break; 717 case 1: 718 PRINT("LINK-ADAPTATION-RESERVED"); 719 break; 720 case 2: 721 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); 722 break; 723 case 3: 724 PRINT("LINK-ADAPTATION-BOTH"); 725 break; 726 } 727 } 728 729 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); 730 PFLAG(MAC, 2, TRS, "TRS"); 731 PFLAG(MAC, 2, BSR, "BSR"); 732 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); 733 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); 734 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); 735 PFLAG(MAC, 2, ACK_EN, "ACK-EN"); 736 737 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); 738 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); 739 740 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) { 741 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0: 742 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0"); 743 break; 744 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1: 745 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1"); 746 break; 747 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2: 748 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2"); 749 break; 750 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3: 751 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3"); 752 break; 753 } 754 755 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG"); 756 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); 757 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); 758 759 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); 760 PFLAG(MAC, 4, QTP, "QTP"); 761 PFLAG(MAC, 4, BQR, "BQR"); 762 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP"); 763 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); 764 PFLAG(MAC, 4, OPS, "OPS"); 765 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU"); 766 767 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7); 768 769 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION, 770 "SUBCHAN-SELECTIVE-TRANSMISSION"); 771 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU"); 772 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX"); 773 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS"); 774 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING"); 775 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX"); 776 777 cap = hec->he_cap_elem.phy_cap_info; 778 p += scnprintf(p, buf_sz + buf - p, 779 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 780 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], 781 cap[7], cap[8], cap[9], cap[10]); 782 783 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, 784 "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); 785 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, 786 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); 787 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, 788 "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); 789 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, 790 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); 791 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, 792 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); 793 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, 794 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); 795 796 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { 797 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: 798 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); 799 break; 800 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: 801 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); 802 break; 803 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: 804 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); 805 break; 806 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: 807 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); 808 break; 809 } 810 811 PFLAG(PHY, 1, DEVICE_CLASS_A, 812 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); 813 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, 814 "LDPC-CODING-IN-PAYLOAD"); 815 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, 816 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); 817 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); 818 819 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); 820 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); 821 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); 822 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); 823 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); 824 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); 825 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); 826 827 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { 828 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: 829 PRINT("DCM-MAX-CONST-TX-NO-DCM"); 830 break; 831 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: 832 PRINT("DCM-MAX-CONST-TX-BPSK"); 833 break; 834 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: 835 PRINT("DCM-MAX-CONST-TX-QPSK"); 836 break; 837 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: 838 PRINT("DCM-MAX-CONST-TX-16-QAM"); 839 break; 840 } 841 842 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); 843 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); 844 845 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { 846 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: 847 PRINT("DCM-MAX-CONST-RX-NO-DCM"); 848 break; 849 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: 850 PRINT("DCM-MAX-CONST-RX-BPSK"); 851 break; 852 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: 853 PRINT("DCM-MAX-CONST-RX-QPSK"); 854 break; 855 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: 856 PRINT("DCM-MAX-CONST-RX-16-QAM"); 857 break; 858 } 859 860 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); 861 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); 862 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU, 863 "RX-PARTIAL-BW-SU-IN-20MHZ-MU"); 864 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); 865 866 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 867 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); 868 869 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, 870 "BEAMFORMEE-MAX-STS-UNDER-%d"); 871 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, 872 "BEAMFORMEE-MAX-STS-ABOVE-%d"); 873 874 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, 875 "NUM-SND-DIM-UNDER-80MHZ-%d"); 876 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, 877 "NUM-SND-DIM-ABOVE-80MHZ-%d"); 878 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); 879 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); 880 881 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); 882 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); 883 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB"); 884 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB, 885 "MU-BEAMFORMING-PARTIAL-BW-FB"); 886 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); 887 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); 888 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, 889 "PARTIAL-BANDWIDTH-DL-MUMIMO"); 890 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); 891 892 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR"); 893 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP"); 894 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, 895 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); 896 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); 897 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); 898 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); 899 900 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, 901 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); 902 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, 903 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); 904 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); 905 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); 906 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, 907 "HE-ER-SU-1XLTF-AND-08-US-GI"); 908 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF, 909 "MIDAMBLE-RX-TX-2X-AND-1XLTF"); 910 911 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) { 912 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242: 913 PRINT("DCM-MAX-RU-242"); 914 break; 915 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484: 916 PRINT("DCM-MAX-RU-484"); 917 break; 918 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996: 919 PRINT("DCM-MAX-RU-996"); 920 break; 921 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996: 922 PRINT("DCM-MAX-RU-2x996"); 923 break; 924 } 925 926 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM, 927 "LONGER-THAN-16-SIGB-OFDM-SYM"); 928 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK, 929 "NON-TRIGGERED-CQI-FEEDBACK"); 930 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU, 931 "TX-1024-QAM-LESS-THAN-242-TONE-RU"); 932 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU, 933 "RX-1024-QAM-LESS-THAN-242-TONE-RU"); 934 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB, 935 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB"); 936 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB, 937 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB"); 938 939 switch (u8_get_bits(cap[9], 940 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) { 941 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 942 PRINT("NOMINAL-PACKET-PADDING-0US"); 943 break; 944 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 945 PRINT("NOMINAL-PACKET-PADDING-8US"); 946 break; 947 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 948 PRINT("NOMINAL-PACKET-PADDING-16US"); 949 break; 950 } 951 952 #undef PFLAG_RANGE_DEFAULT 953 #undef PFLAG_RANGE 954 #undef PFLAG 955 956 #define PRINT_NSS_SUPP(f, n) \ 957 do { \ 958 int _i; \ 959 u16 v = le16_to_cpu(nss->f); \ 960 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ 961 for (_i = 0; _i < 8; _i += 2) { \ 962 switch ((v >> _i) & 0x3) { \ 963 case 0: \ 964 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \ 965 break; \ 966 case 1: \ 967 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \ 968 break; \ 969 case 2: \ 970 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \ 971 break; \ 972 case 3: \ 973 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \ 974 break; \ 975 } \ 976 } \ 977 } while (0) 978 979 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); 980 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); 981 982 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { 983 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); 984 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); 985 } 986 987 if (cap[0] & 988 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { 989 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); 990 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); 991 } 992 993 #undef PRINT_NSS_SUPP 994 #undef PRINT 995 996 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) 997 goto out; 998 999 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", 1000 hec->ppe_thres[0]); 1001 1002 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); 1003 for (i = 1; i < ppe_size; i++) { 1004 p += scnprintf(p, buf_sz + buf - p, " %#.2x", 1005 hec->ppe_thres[i]); 1006 } 1007 p += scnprintf(p, buf_sz + buf - p, "\n"); 1008 1009 out: 1010 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 1011 kfree(buf); 1012 return ret; 1013 } 1014 STA_OPS(he_capa); 1015 1016 #define DEBUGFS_ADD(name) \ 1017 debugfs_create_file(#name, 0400, \ 1018 sta->debugfs_dir, sta, &sta_ ##name## _ops) 1019 1020 #define DEBUGFS_ADD_COUNTER(name, field) \ 1021 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field); 1022 1023 void ieee80211_sta_debugfs_add(struct sta_info *sta) 1024 { 1025 struct ieee80211_local *local = sta->local; 1026 struct ieee80211_sub_if_data *sdata = sta->sdata; 1027 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 1028 u8 mac[3*ETH_ALEN]; 1029 1030 if (!stations_dir) 1031 return; 1032 1033 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 1034 1035 /* 1036 * This might fail due to a race condition: 1037 * When mac80211 unlinks a station, the debugfs entries 1038 * remain, but it is already possible to link a new 1039 * station with the same address which triggers adding 1040 * it to debugfs; therefore, if the old station isn't 1041 * destroyed quickly enough the old station's debugfs 1042 * dir might still be around. 1043 */ 1044 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); 1045 1046 DEBUGFS_ADD(flags); 1047 DEBUGFS_ADD(aid); 1048 DEBUGFS_ADD(num_ps_buf_frames); 1049 DEBUGFS_ADD(last_seq_ctrl); 1050 DEBUGFS_ADD(agg_status); 1051 DEBUGFS_ADD(ht_capa); 1052 DEBUGFS_ADD(vht_capa); 1053 DEBUGFS_ADD(he_capa); 1054 1055 DEBUGFS_ADD_COUNTER(rx_duplicates, deflink.rx_stats.num_duplicates); 1056 DEBUGFS_ADD_COUNTER(rx_fragments, deflink.rx_stats.fragments); 1057 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered); 1058 1059 if (local->ops->wake_tx_queue) { 1060 DEBUGFS_ADD(aqm); 1061 DEBUGFS_ADD(airtime); 1062 } 1063 1064 if (wiphy_ext_feature_isset(local->hw.wiphy, 1065 NL80211_EXT_FEATURE_AQL)) 1066 DEBUGFS_ADD(aql); 1067 1068 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir, 1069 &sta->driver_buffered_tids); 1070 1071 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); 1072 } 1073 1074 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 1075 { 1076 debugfs_remove_recursive(sta->debugfs_dir); 1077 sta->debugfs_dir = NULL; 1078 } 1079