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 - 2022 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%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 test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : ""); 187 } 188 189 rcu_read_unlock(); 190 spin_unlock_bh(&local->fq.lock); 191 192 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 193 kfree(buf); 194 return rv; 195 } 196 STA_OPS(aqm); 197 198 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf, 199 size_t count, loff_t *ppos) 200 { 201 struct sta_info *sta = file->private_data; 202 struct ieee80211_local *local = sta->sdata->local; 203 size_t bufsz = 400; 204 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 205 u64 rx_airtime = 0, tx_airtime = 0; 206 s32 deficit[IEEE80211_NUM_ACS]; 207 ssize_t rv; 208 int ac; 209 210 if (!buf) 211 return -ENOMEM; 212 213 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 214 spin_lock_bh(&local->active_txq_lock[ac]); 215 rx_airtime += sta->airtime[ac].rx_airtime; 216 tx_airtime += sta->airtime[ac].tx_airtime; 217 deficit[ac] = sta->airtime[ac].deficit; 218 spin_unlock_bh(&local->active_txq_lock[ac]); 219 } 220 221 p += scnprintf(p, bufsz + buf - p, 222 "RX: %llu us\nTX: %llu us\nWeight: %u\n" 223 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n", 224 rx_airtime, tx_airtime, sta->airtime_weight, 225 deficit[0], deficit[1], deficit[2], deficit[3]); 226 227 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 228 kfree(buf); 229 return rv; 230 } 231 232 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf, 233 size_t count, loff_t *ppos) 234 { 235 struct sta_info *sta = file->private_data; 236 struct ieee80211_local *local = sta->sdata->local; 237 int ac; 238 239 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 240 spin_lock_bh(&local->active_txq_lock[ac]); 241 sta->airtime[ac].rx_airtime = 0; 242 sta->airtime[ac].tx_airtime = 0; 243 sta->airtime[ac].deficit = sta->airtime_weight; 244 spin_unlock_bh(&local->active_txq_lock[ac]); 245 } 246 247 return count; 248 } 249 STA_OPS_RW(airtime); 250 251 static ssize_t sta_aql_read(struct file *file, char __user *userbuf, 252 size_t count, loff_t *ppos) 253 { 254 struct sta_info *sta = file->private_data; 255 struct ieee80211_local *local = sta->sdata->local; 256 size_t bufsz = 400; 257 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 258 u32 q_depth[IEEE80211_NUM_ACS]; 259 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS]; 260 ssize_t rv; 261 int ac; 262 263 if (!buf) 264 return -ENOMEM; 265 266 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 267 spin_lock_bh(&local->active_txq_lock[ac]); 268 q_limit_l[ac] = sta->airtime[ac].aql_limit_low; 269 q_limit_h[ac] = sta->airtime[ac].aql_limit_high; 270 spin_unlock_bh(&local->active_txq_lock[ac]); 271 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending); 272 } 273 274 p += scnprintf(p, bufsz + buf - p, 275 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n" 276 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n", 277 q_depth[0], q_depth[1], q_depth[2], q_depth[3], 278 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1], 279 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]); 280 281 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 282 kfree(buf); 283 return rv; 284 } 285 286 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf, 287 size_t count, loff_t *ppos) 288 { 289 struct sta_info *sta = file->private_data; 290 u32 ac, q_limit_l, q_limit_h; 291 char _buf[100] = {}, *buf = _buf; 292 293 if (count > sizeof(_buf)) 294 return -EINVAL; 295 296 if (copy_from_user(buf, userbuf, count)) 297 return -EFAULT; 298 299 buf[sizeof(_buf) - 1] = '\0'; 300 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h) 301 != 3) 302 return -EINVAL; 303 304 if (ac >= IEEE80211_NUM_ACS) 305 return -EINVAL; 306 307 sta->airtime[ac].aql_limit_low = q_limit_l; 308 sta->airtime[ac].aql_limit_high = q_limit_h; 309 310 return count; 311 } 312 STA_OPS_RW(aql); 313 314 315 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 316 size_t count, loff_t *ppos) 317 { 318 char *buf, *p; 319 ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40; 320 int i; 321 struct sta_info *sta = file->private_data; 322 struct tid_ampdu_rx *tid_rx; 323 struct tid_ampdu_tx *tid_tx; 324 ssize_t ret; 325 326 buf = kzalloc(bufsz, GFP_KERNEL); 327 if (!buf) 328 return -ENOMEM; 329 p = buf; 330 331 rcu_read_lock(); 332 333 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n", 334 sta->ampdu_mlme.dialog_token_allocator + 1); 335 p += scnprintf(p, bufsz + buf - p, 336 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 337 338 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 339 bool tid_rx_valid; 340 341 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 342 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 343 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid); 344 345 p += scnprintf(p, bufsz + buf - p, "%02d", i); 346 p += scnprintf(p, bufsz + buf - p, "\t\t%x", 347 tid_rx_valid); 348 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 349 tid_rx_valid ? 350 sta->ampdu_mlme.tid_rx_token[i] : 0); 351 p += scnprintf(p, bufsz + buf - p, "\t%#.3x", 352 tid_rx ? tid_rx->ssn : 0); 353 354 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx); 355 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 356 tid_tx ? tid_tx->dialog_token : 0); 357 p += scnprintf(p, bufsz + buf - p, "\t%03d", 358 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 359 p += scnprintf(p, bufsz + buf - p, "\n"); 360 } 361 rcu_read_unlock(); 362 363 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 364 kfree(buf); 365 return ret; 366 } 367 368 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 369 size_t count, loff_t *ppos) 370 { 371 char _buf[25] = {}, *buf = _buf; 372 struct sta_info *sta = file->private_data; 373 bool start, tx; 374 unsigned long tid; 375 char *pos; 376 int ret, timeout = 5000; 377 378 if (count > sizeof(_buf)) 379 return -EINVAL; 380 381 if (copy_from_user(buf, userbuf, count)) 382 return -EFAULT; 383 384 buf[sizeof(_buf) - 1] = '\0'; 385 pos = buf; 386 buf = strsep(&pos, " "); 387 if (!buf) 388 return -EINVAL; 389 390 if (!strcmp(buf, "tx")) 391 tx = true; 392 else if (!strcmp(buf, "rx")) 393 tx = false; 394 else 395 return -EINVAL; 396 397 buf = strsep(&pos, " "); 398 if (!buf) 399 return -EINVAL; 400 if (!strcmp(buf, "start")) { 401 start = true; 402 if (!tx) 403 return -EINVAL; 404 } else if (!strcmp(buf, "stop")) { 405 start = false; 406 } else { 407 return -EINVAL; 408 } 409 410 buf = strsep(&pos, " "); 411 if (!buf) 412 return -EINVAL; 413 if (sscanf(buf, "timeout=%d", &timeout) == 1) { 414 buf = strsep(&pos, " "); 415 if (!buf || !tx || !start) 416 return -EINVAL; 417 } 418 419 ret = kstrtoul(buf, 0, &tid); 420 if (ret || tid >= IEEE80211_NUM_TIDS) 421 return -EINVAL; 422 423 if (tx) { 424 if (start) 425 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 426 timeout); 427 else 428 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 429 } else { 430 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 431 3, true); 432 ret = 0; 433 } 434 435 return ret ?: count; 436 } 437 STA_OPS_RW(agg_status); 438 439 /* link sta attributes */ 440 #define LINK_STA_OPS(name) \ 441 static const struct file_operations link_sta_ ##name## _ops = { \ 442 .read = link_sta_##name##_read, \ 443 .open = simple_open, \ 444 .llseek = generic_file_llseek, \ 445 } 446 447 static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf, 448 size_t count, loff_t *ppos) 449 { 450 struct link_sta_info *link_sta = file->private_data; 451 u8 mac[3 * ETH_ALEN + 1]; 452 453 snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr); 454 455 return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN); 456 } 457 458 LINK_STA_OPS(addr); 459 460 static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf, 461 size_t count, loff_t *ppos) 462 { 463 #define PRINT_HT_CAP(_cond, _str) \ 464 do { \ 465 if (_cond) \ 466 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \ 467 } while (0) 468 char *buf, *p; 469 int i; 470 ssize_t bufsz = 512; 471 struct link_sta_info *link_sta = file->private_data; 472 struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap; 473 ssize_t ret; 474 475 buf = kzalloc(bufsz, GFP_KERNEL); 476 if (!buf) 477 return -ENOMEM; 478 p = buf; 479 480 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n", 481 htc->ht_supported ? "" : "not "); 482 if (htc->ht_supported) { 483 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap); 484 485 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 486 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 487 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 488 489 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 490 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 491 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 492 493 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 494 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 495 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 496 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 497 498 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 499 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 500 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 501 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 502 503 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 504 505 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 506 "3839 bytes"); 507 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 508 "7935 bytes"); 509 510 /* 511 * For beacons and probe response this would mean the BSS 512 * does or does not allow the usage of DSSS/CCK HT40. 513 * Otherwise it means the STA does or does not use 514 * DSSS/CCK HT40. 515 */ 516 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 517 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 518 519 /* BIT(13) is reserved */ 520 521 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 522 523 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 524 525 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n", 526 htc->ampdu_factor, htc->ampdu_density); 527 p += scnprintf(p, bufsz + buf - p, "MCS mask:"); 528 529 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 530 p += scnprintf(p, bufsz + buf - p, " %.2x", 531 htc->mcs.rx_mask[i]); 532 p += scnprintf(p, bufsz + buf - p, "\n"); 533 534 /* If not set this is meaningless */ 535 if (le16_to_cpu(htc->mcs.rx_highest)) { 536 p += scnprintf(p, bufsz + buf - p, 537 "MCS rx highest: %d Mbps\n", 538 le16_to_cpu(htc->mcs.rx_highest)); 539 } 540 541 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n", 542 htc->mcs.tx_params); 543 } 544 545 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 546 kfree(buf); 547 return ret; 548 } 549 LINK_STA_OPS(ht_capa); 550 551 static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf, 552 size_t count, loff_t *ppos) 553 { 554 char *buf, *p; 555 struct link_sta_info *link_sta = file->private_data; 556 struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap; 557 ssize_t ret; 558 ssize_t bufsz = 512; 559 560 buf = kzalloc(bufsz, GFP_KERNEL); 561 if (!buf) 562 return -ENOMEM; 563 p = buf; 564 565 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n", 566 vhtc->vht_supported ? "" : "not "); 567 if (vhtc->vht_supported) { 568 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n", 569 vhtc->cap); 570 #define PFLAG(a, b) \ 571 do { \ 572 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \ 573 p += scnprintf(p, bufsz + buf - p, \ 574 "\t\t%s\n", b); \ 575 } while (0) 576 577 switch (vhtc->cap & 0x3) { 578 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 579 p += scnprintf(p, bufsz + buf - p, 580 "\t\tMAX-MPDU-3895\n"); 581 break; 582 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 583 p += scnprintf(p, bufsz + buf - p, 584 "\t\tMAX-MPDU-7991\n"); 585 break; 586 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 587 p += scnprintf(p, bufsz + buf - p, 588 "\t\tMAX-MPDU-11454\n"); 589 break; 590 default: 591 p += scnprintf(p, bufsz + buf - p, 592 "\t\tMAX-MPDU-UNKNOWN\n"); 593 } 594 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 595 case 0: 596 p += scnprintf(p, bufsz + buf - p, 597 "\t\t80Mhz\n"); 598 break; 599 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 600 p += scnprintf(p, bufsz + buf - p, 601 "\t\t160Mhz\n"); 602 break; 603 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 604 p += scnprintf(p, bufsz + buf - p, 605 "\t\t80+80Mhz\n"); 606 break; 607 default: 608 p += scnprintf(p, bufsz + buf - p, 609 "\t\tUNKNOWN-MHZ: 0x%x\n", 610 (vhtc->cap >> 2) & 0x3); 611 } 612 PFLAG(RXLDPC, "RXLDPC"); 613 PFLAG(SHORT_GI_80, "SHORT-GI-80"); 614 PFLAG(SHORT_GI_160, "SHORT-GI-160"); 615 PFLAG(TXSTBC, "TXSTBC"); 616 p += scnprintf(p, bufsz + buf - p, 617 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7); 618 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE"); 619 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE"); 620 p += scnprintf(p, bufsz + buf - p, 621 "\t\tBEAMFORMEE-STS: 0x%x\n", 622 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >> 623 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 624 p += scnprintf(p, bufsz + buf - p, 625 "\t\tSOUNDING-DIMENSIONS: 0x%x\n", 626 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK) 627 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 628 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE"); 629 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE"); 630 PFLAG(VHT_TXOP_PS, "TXOP-PS"); 631 PFLAG(HTC_VHT, "HTC-VHT"); 632 p += scnprintf(p, bufsz + buf - p, 633 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n", 634 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >> 635 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT); 636 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB, 637 "LINK-ADAPTATION-VHT-UNSOL-MFB"); 638 p += scnprintf(p, bufsz + buf - p, 639 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n", 640 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26); 641 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN"); 642 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN"); 643 644 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n", 645 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 646 if (vhtc->vht_mcs.rx_highest) 647 p += scnprintf(p, bufsz + buf - p, 648 "MCS RX highest: %d Mbps\n", 649 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 650 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n", 651 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 652 if (vhtc->vht_mcs.tx_highest) 653 p += scnprintf(p, bufsz + buf - p, 654 "MCS TX highest: %d Mbps\n", 655 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 656 #undef PFLAG 657 } 658 659 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 660 kfree(buf); 661 return ret; 662 } 663 LINK_STA_OPS(vht_capa); 664 665 static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf, 666 size_t count, loff_t *ppos) 667 { 668 char *buf, *p; 669 size_t buf_sz = PAGE_SIZE; 670 struct link_sta_info *link_sta = file->private_data; 671 struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap; 672 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; 673 u8 ppe_size; 674 u8 *cap; 675 int i; 676 ssize_t ret; 677 678 buf = kmalloc(buf_sz, GFP_KERNEL); 679 if (!buf) 680 return -ENOMEM; 681 p = buf; 682 683 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", 684 hec->has_he ? "" : "not "); 685 if (!hec->has_he) 686 goto out; 687 688 cap = hec->he_cap_elem.mac_cap_info; 689 p += scnprintf(p, buf_sz + buf - p, 690 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 691 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]); 692 693 #define PRINT(fmt, ...) \ 694 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 695 ##__VA_ARGS__) 696 697 #define PFLAG(t, n, a, b) \ 698 do { \ 699 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ 700 PRINT("%s", b); \ 701 } while (0) 702 703 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ 704 do { \ 705 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ 706 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ 707 PRINT(fmt, (s << idx) + (m * idx)); \ 708 } while (0) 709 710 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ 711 do { \ 712 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ 713 PRINT("%s", b); \ 714 break; \ 715 } \ 716 PFLAG_RANGE(t, i, n, s, m, off, fmt); \ 717 } while (0) 718 719 PFLAG(MAC, 0, HTC_HE, "HTC-HE"); 720 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); 721 PFLAG(MAC, 0, TWT_RES, "TWT-RES"); 722 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, 723 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); 724 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, 725 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); 726 727 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, 728 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); 729 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, 730 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); 731 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1, 732 "MULTI-TID-AGG-RX-QOS-%d"); 733 734 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { 735 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { 736 case 0: 737 PRINT("LINK-ADAPTATION-NO-FEEDBACK"); 738 break; 739 case 1: 740 PRINT("LINK-ADAPTATION-RESERVED"); 741 break; 742 case 2: 743 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); 744 break; 745 case 3: 746 PRINT("LINK-ADAPTATION-BOTH"); 747 break; 748 } 749 } 750 751 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); 752 PFLAG(MAC, 2, TRS, "TRS"); 753 PFLAG(MAC, 2, BSR, "BSR"); 754 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); 755 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); 756 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); 757 PFLAG(MAC, 2, ACK_EN, "ACK-EN"); 758 759 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); 760 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); 761 762 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) { 763 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0: 764 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0"); 765 break; 766 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1: 767 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1"); 768 break; 769 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2: 770 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2"); 771 break; 772 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3: 773 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3"); 774 break; 775 } 776 777 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG"); 778 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); 779 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); 780 781 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); 782 PFLAG(MAC, 4, QTP, "QTP"); 783 PFLAG(MAC, 4, BQR, "BQR"); 784 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP"); 785 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); 786 PFLAG(MAC, 4, OPS, "OPS"); 787 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU"); 788 789 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7); 790 791 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION, 792 "SUBCHAN-SELECTIVE-TRANSMISSION"); 793 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU"); 794 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX"); 795 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS"); 796 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING"); 797 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX"); 798 799 cap = hec->he_cap_elem.phy_cap_info; 800 p += scnprintf(p, buf_sz + buf - p, 801 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 802 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], 803 cap[7], cap[8], cap[9], cap[10]); 804 805 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, 806 "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); 807 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, 808 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); 809 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, 810 "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); 811 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, 812 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); 813 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, 814 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); 815 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, 816 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); 817 818 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { 819 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: 820 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); 821 break; 822 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: 823 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); 824 break; 825 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: 826 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); 827 break; 828 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: 829 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); 830 break; 831 } 832 833 PFLAG(PHY, 1, DEVICE_CLASS_A, 834 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); 835 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, 836 "LDPC-CODING-IN-PAYLOAD"); 837 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, 838 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); 839 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); 840 841 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); 842 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); 843 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); 844 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); 845 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); 846 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); 847 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); 848 849 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { 850 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: 851 PRINT("DCM-MAX-CONST-TX-NO-DCM"); 852 break; 853 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: 854 PRINT("DCM-MAX-CONST-TX-BPSK"); 855 break; 856 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: 857 PRINT("DCM-MAX-CONST-TX-QPSK"); 858 break; 859 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: 860 PRINT("DCM-MAX-CONST-TX-16-QAM"); 861 break; 862 } 863 864 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); 865 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); 866 867 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { 868 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: 869 PRINT("DCM-MAX-CONST-RX-NO-DCM"); 870 break; 871 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: 872 PRINT("DCM-MAX-CONST-RX-BPSK"); 873 break; 874 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: 875 PRINT("DCM-MAX-CONST-RX-QPSK"); 876 break; 877 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: 878 PRINT("DCM-MAX-CONST-RX-16-QAM"); 879 break; 880 } 881 882 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); 883 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); 884 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU, 885 "RX-PARTIAL-BW-SU-IN-20MHZ-MU"); 886 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); 887 888 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 889 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); 890 891 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, 892 "BEAMFORMEE-MAX-STS-UNDER-%d"); 893 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, 894 "BEAMFORMEE-MAX-STS-ABOVE-%d"); 895 896 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, 897 "NUM-SND-DIM-UNDER-80MHZ-%d"); 898 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, 899 "NUM-SND-DIM-ABOVE-80MHZ-%d"); 900 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); 901 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); 902 903 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); 904 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); 905 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB"); 906 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB, 907 "MU-BEAMFORMING-PARTIAL-BW-FB"); 908 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); 909 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); 910 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, 911 "PARTIAL-BANDWIDTH-DL-MUMIMO"); 912 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); 913 914 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR"); 915 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP"); 916 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, 917 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); 918 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); 919 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); 920 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); 921 922 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, 923 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); 924 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, 925 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); 926 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); 927 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); 928 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, 929 "HE-ER-SU-1XLTF-AND-08-US-GI"); 930 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF, 931 "MIDAMBLE-RX-TX-2X-AND-1XLTF"); 932 933 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) { 934 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242: 935 PRINT("DCM-MAX-RU-242"); 936 break; 937 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484: 938 PRINT("DCM-MAX-RU-484"); 939 break; 940 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996: 941 PRINT("DCM-MAX-RU-996"); 942 break; 943 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996: 944 PRINT("DCM-MAX-RU-2x996"); 945 break; 946 } 947 948 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM, 949 "LONGER-THAN-16-SIGB-OFDM-SYM"); 950 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK, 951 "NON-TRIGGERED-CQI-FEEDBACK"); 952 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU, 953 "TX-1024-QAM-LESS-THAN-242-TONE-RU"); 954 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU, 955 "RX-1024-QAM-LESS-THAN-242-TONE-RU"); 956 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB, 957 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB"); 958 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB, 959 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB"); 960 961 switch (u8_get_bits(cap[9], 962 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) { 963 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 964 PRINT("NOMINAL-PACKET-PADDING-0US"); 965 break; 966 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 967 PRINT("NOMINAL-PACKET-PADDING-8US"); 968 break; 969 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 970 PRINT("NOMINAL-PACKET-PADDING-16US"); 971 break; 972 } 973 974 #undef PFLAG_RANGE_DEFAULT 975 #undef PFLAG_RANGE 976 #undef PFLAG 977 978 #define PRINT_NSS_SUPP(f, n) \ 979 do { \ 980 int _i; \ 981 u16 v = le16_to_cpu(nss->f); \ 982 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ 983 for (_i = 0; _i < 8; _i += 2) { \ 984 switch ((v >> _i) & 0x3) { \ 985 case 0: \ 986 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \ 987 break; \ 988 case 1: \ 989 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \ 990 break; \ 991 case 2: \ 992 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \ 993 break; \ 994 case 3: \ 995 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \ 996 break; \ 997 } \ 998 } \ 999 } while (0) 1000 1001 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); 1002 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); 1003 1004 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { 1005 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); 1006 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); 1007 } 1008 1009 if (cap[0] & 1010 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { 1011 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); 1012 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); 1013 } 1014 1015 #undef PRINT_NSS_SUPP 1016 #undef PRINT 1017 1018 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) 1019 goto out; 1020 1021 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", 1022 hec->ppe_thres[0]); 1023 1024 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); 1025 for (i = 1; i < ppe_size; i++) { 1026 p += scnprintf(p, buf_sz + buf - p, " %#.2x", 1027 hec->ppe_thres[i]); 1028 } 1029 p += scnprintf(p, buf_sz + buf - p, "\n"); 1030 1031 out: 1032 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 1033 kfree(buf); 1034 return ret; 1035 } 1036 LINK_STA_OPS(he_capa); 1037 1038 static ssize_t link_sta_eht_capa_read(struct file *file, char __user *userbuf, 1039 size_t count, loff_t *ppos) 1040 { 1041 char *buf, *p; 1042 size_t buf_sz = PAGE_SIZE; 1043 struct link_sta_info *link_sta = file->private_data; 1044 struct ieee80211_sta_eht_cap *bec = &link_sta->pub->eht_cap; 1045 struct ieee80211_eht_cap_elem_fixed *fixed = &bec->eht_cap_elem; 1046 struct ieee80211_eht_mcs_nss_supp *nss = &bec->eht_mcs_nss_supp; 1047 u8 *cap; 1048 int i; 1049 ssize_t ret; 1050 static const char *mcs_desc[] = { "0-7", "8-9", "10-11", "12-13"}; 1051 1052 buf = kmalloc(buf_sz, GFP_KERNEL); 1053 if (!buf) 1054 return -ENOMEM; 1055 p = buf; 1056 1057 p += scnprintf(p, buf_sz + buf - p, "EHT %ssupported\n", 1058 bec->has_eht ? "" : "not "); 1059 if (!bec->has_eht) 1060 goto out; 1061 1062 p += scnprintf(p, buf_sz + buf - p, 1063 "MAC-CAP: %#.2x %#.2x\n", 1064 fixed->mac_cap_info[0], fixed->mac_cap_info[1]); 1065 p += scnprintf(p, buf_sz + buf - p, 1066 "PHY-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 1067 fixed->phy_cap_info[0], fixed->phy_cap_info[1], 1068 fixed->phy_cap_info[2], fixed->phy_cap_info[3], 1069 fixed->phy_cap_info[4], fixed->phy_cap_info[5], 1070 fixed->phy_cap_info[6], fixed->phy_cap_info[7], 1071 fixed->phy_cap_info[8]); 1072 1073 #define PRINT(fmt, ...) \ 1074 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 1075 ##__VA_ARGS__) 1076 1077 #define PFLAG(t, n, a, b) \ 1078 do { \ 1079 if (cap[n] & IEEE80211_EHT_##t##_CAP##n##_##a) \ 1080 PRINT("%s", b); \ 1081 } while (0) 1082 1083 cap = fixed->mac_cap_info; 1084 PFLAG(MAC, 0, EPCS_PRIO_ACCESS, "EPCS-PRIO-ACCESS"); 1085 PFLAG(MAC, 0, OM_CONTROL, "OM-CONTROL"); 1086 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE1, "TRIG-TXOP-SHARING-MODE1"); 1087 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE2, "TRIG-TXOP-SHARING-MODE2"); 1088 PFLAG(MAC, 0, RESTRICTED_TWT, "RESTRICTED-TWT"); 1089 PFLAG(MAC, 0, SCS_TRAFFIC_DESC, "SCS-TRAFFIC-DESC"); 1090 switch ((cap[0] & 0xc0) >> 6) { 1091 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895: 1092 PRINT("MAX-MPDU-LEN: 3985"); 1093 break; 1094 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991: 1095 PRINT("MAX-MPDU-LEN: 7991"); 1096 break; 1097 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454: 1098 PRINT("MAX-MPDU-LEN: 11454"); 1099 break; 1100 } 1101 1102 cap = fixed->phy_cap_info; 1103 PFLAG(PHY, 0, 320MHZ_IN_6GHZ, "320MHZ-IN-6GHZ"); 1104 PFLAG(PHY, 0, 242_TONE_RU_GT20MHZ, "242-TONE-RU-GT20MHZ"); 1105 PFLAG(PHY, 0, NDP_4_EHT_LFT_32_GI, "NDP-4-EHT-LFT-32-GI"); 1106 PFLAG(PHY, 0, PARTIAL_BW_UL_MU_MIMO, "PARTIAL-BW-UL-MU-MIMO"); 1107 PFLAG(PHY, 0, SU_BEAMFORMER, "SU-BEAMFORMER"); 1108 PFLAG(PHY, 0, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 1109 i = cap[0] >> 7; 1110 i |= (cap[1] & 0x3) << 1; 1111 PRINT("BEAMFORMEE-80-NSS: %i", i); 1112 PRINT("BEAMFORMEE-160-NSS: %i", (cap[1] >> 2) & 0x7); 1113 PRINT("BEAMFORMEE-320-NSS: %i", (cap[1] >> 5) & 0x7); 1114 PRINT("SOUNDING-DIM-80-NSS: %i", (cap[2] & 0x7)); 1115 PRINT("SOUNDING-DIM-160-NSS: %i", (cap[2] >> 3) & 0x7); 1116 i = cap[2] >> 6; 1117 i |= (cap[3] & 0x1) << 3; 1118 PRINT("SOUNDING-DIM-320-NSS: %i", i); 1119 1120 PFLAG(PHY, 3, NG_16_SU_FEEDBACK, "NG-16-SU-FEEDBACK"); 1121 PFLAG(PHY, 3, NG_16_MU_FEEDBACK, "NG-16-MU-FEEDBACK"); 1122 PFLAG(PHY, 3, CODEBOOK_4_2_SU_FDBK, "CODEBOOK-4-2-SU-FDBK"); 1123 PFLAG(PHY, 3, CODEBOOK_7_5_MU_FDBK, "CODEBOOK-7-5-MU-FDBK"); 1124 PFLAG(PHY, 3, TRIG_SU_BF_FDBK, "TRIG-SU-BF-FDBK"); 1125 PFLAG(PHY, 3, TRIG_MU_BF_PART_BW_FDBK, "TRIG-MU-BF-PART-BW-FDBK"); 1126 PFLAG(PHY, 3, TRIG_CQI_FDBK, "TRIG-CQI-FDBK"); 1127 1128 PFLAG(PHY, 4, PART_BW_DL_MU_MIMO, "PART-BW-DL-MU-MIMO"); 1129 PFLAG(PHY, 4, PSR_SR_SUPP, "PSR-SR-SUPP"); 1130 PFLAG(PHY, 4, POWER_BOOST_FACT_SUPP, "POWER-BOOST-FACT-SUPP"); 1131 PFLAG(PHY, 4, EHT_MU_PPDU_4_EHT_LTF_08_GI, "EHT-MU-PPDU-4-EHT-LTF-08-GI"); 1132 PRINT("MAX_NC: %i", cap[4] >> 4); 1133 1134 PFLAG(PHY, 5, NON_TRIG_CQI_FEEDBACK, "NON-TRIG-CQI-FEEDBACK"); 1135 PFLAG(PHY, 5, TX_LESS_242_TONE_RU_SUPP, "TX-LESS-242-TONE-RU-SUPP"); 1136 PFLAG(PHY, 5, RX_LESS_242_TONE_RU_SUPP, "RX-LESS-242-TONE-RU-SUPP"); 1137 PFLAG(PHY, 5, PPE_THRESHOLD_PRESENT, "PPE_THRESHOLD_PRESENT"); 1138 switch (cap[5] >> 4 & 0x3) { 1139 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 1140 PRINT("NOMINAL_PKT_PAD: 0us"); 1141 break; 1142 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 1143 PRINT("NOMINAL_PKT_PAD: 8us"); 1144 break; 1145 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 1146 PRINT("NOMINAL_PKT_PAD: 16us"); 1147 break; 1148 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 1149 PRINT("NOMINAL_PKT_PAD: 20us"); 1150 break; 1151 } 1152 i = cap[5] >> 6; 1153 i |= cap[6] & 0x7; 1154 PRINT("MAX-NUM-SUPP-EHT-LTF: %i", i); 1155 PFLAG(PHY, 5, SUPP_EXTRA_EHT_LTF, "SUPP-EXTRA-EHT-LTF"); 1156 1157 i = (cap[6] >> 3) & 0xf; 1158 PRINT("MCS15-SUPP-MASK: %i", i); 1159 PFLAG(PHY, 6, EHT_DUP_6GHZ_SUPP, "EHT-DUP-6GHZ-SUPP"); 1160 1161 PFLAG(PHY, 7, 20MHZ_STA_RX_NDP_WIDER_BW, "20MHZ-STA-RX-NDP-WIDER-BW"); 1162 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_80MHZ, "NON-OFDMA-UL-MU-MIMO-80MHZ"); 1163 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_160MHZ, "NON-OFDMA-UL-MU-MIMO-160MHZ"); 1164 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_320MHZ, "NON-OFDMA-UL-MU-MIMO-320MHZ"); 1165 PFLAG(PHY, 7, MU_BEAMFORMER_80MHZ, "MU-BEAMFORMER-80MHZ"); 1166 PFLAG(PHY, 7, MU_BEAMFORMER_160MHZ, "MU-BEAMFORMER-160MHZ"); 1167 PFLAG(PHY, 7, MU_BEAMFORMER_320MHZ, "MU-BEAMFORMER-320MHZ"); 1168 PFLAG(PHY, 7, TB_SOUNDING_FDBK_RATE_LIMIT, "TB-SOUNDING-FDBK-RATE-LIMIT"); 1169 1170 PFLAG(PHY, 8, RX_1024QAM_WIDER_BW_DL_OFDMA, "RX-1024QAM-WIDER-BW-DL-OFDMA"); 1171 PFLAG(PHY, 8, RX_4096QAM_WIDER_BW_DL_OFDMA, "RX-4096QAM-WIDER-BW-DL-OFDMA"); 1172 1173 #undef PFLAG 1174 1175 PRINT(""); /* newline */ 1176 if (!(link_sta->pub->he_cap.he_cap_elem.phy_cap_info[0] & 1177 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) { 1178 u8 *mcs_vals = (u8 *)(&nss->only_20mhz); 1179 1180 for (i = 0; i < 4; i++) 1181 PRINT("EHT bw=20 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1182 mcs_desc[i], 1183 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1184 } else { 1185 u8 *mcs_vals = (u8 *)(&nss->bw._80); 1186 1187 for (i = 0; i < 3; i++) 1188 PRINT("EHT bw <= 80 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1189 mcs_desc[i + 1], 1190 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1191 1192 mcs_vals = (u8 *)(&nss->bw._160); 1193 for (i = 0; i < 3; i++) 1194 PRINT("EHT bw <= 160 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1195 mcs_desc[i + 1], 1196 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1197 1198 mcs_vals = (u8 *)(&nss->bw._320); 1199 for (i = 0; i < 3; i++) 1200 PRINT("EHT bw <= 320 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1201 mcs_desc[i + 1], 1202 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1203 } 1204 1205 if (cap[5] & IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 1206 u8 ppe_size = ieee80211_eht_ppe_size(bec->eht_ppe_thres[0], cap); 1207 1208 p += scnprintf(p, buf_sz + buf - p, "EHT PPE Thresholds: "); 1209 for (i = 0; i < ppe_size; i++) 1210 p += scnprintf(p, buf_sz + buf - p, "0x%02x ", 1211 bec->eht_ppe_thres[i]); 1212 PRINT(""); /* newline */ 1213 } 1214 1215 out: 1216 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 1217 kfree(buf); 1218 return ret; 1219 } 1220 LINK_STA_OPS(eht_capa); 1221 1222 #define DEBUGFS_ADD(name) \ 1223 debugfs_create_file(#name, 0400, \ 1224 sta->debugfs_dir, sta, &sta_ ##name## _ops) 1225 1226 #define DEBUGFS_ADD_COUNTER(name, field) \ 1227 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field); 1228 1229 void ieee80211_sta_debugfs_add(struct sta_info *sta) 1230 { 1231 struct ieee80211_local *local = sta->local; 1232 struct ieee80211_sub_if_data *sdata = sta->sdata; 1233 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 1234 u8 mac[3*ETH_ALEN]; 1235 1236 if (!stations_dir) 1237 return; 1238 1239 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 1240 1241 /* 1242 * This might fail due to a race condition: 1243 * When mac80211 unlinks a station, the debugfs entries 1244 * remain, but it is already possible to link a new 1245 * station with the same address which triggers adding 1246 * it to debugfs; therefore, if the old station isn't 1247 * destroyed quickly enough the old station's debugfs 1248 * dir might still be around. 1249 */ 1250 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); 1251 1252 DEBUGFS_ADD(flags); 1253 DEBUGFS_ADD(aid); 1254 DEBUGFS_ADD(num_ps_buf_frames); 1255 DEBUGFS_ADD(last_seq_ctrl); 1256 DEBUGFS_ADD(agg_status); 1257 /* FIXME: Kept here as the statistics are only done on the deflink */ 1258 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered); 1259 1260 DEBUGFS_ADD(aqm); 1261 DEBUGFS_ADD(airtime); 1262 1263 if (wiphy_ext_feature_isset(local->hw.wiphy, 1264 NL80211_EXT_FEATURE_AQL)) 1265 DEBUGFS_ADD(aql); 1266 1267 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir, 1268 &sta->driver_buffered_tids); 1269 1270 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); 1271 } 1272 1273 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 1274 { 1275 debugfs_remove_recursive(sta->debugfs_dir); 1276 sta->debugfs_dir = NULL; 1277 } 1278 1279 #undef DEBUGFS_ADD 1280 #undef DEBUGFS_ADD_COUNTER 1281 1282 #define DEBUGFS_ADD(name) \ 1283 debugfs_create_file(#name, 0400, \ 1284 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops) 1285 #define DEBUGFS_ADD_COUNTER(name, field) \ 1286 debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field) 1287 1288 void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta) 1289 { 1290 if (WARN_ON(!link_sta->sta->debugfs_dir)) 1291 return; 1292 1293 /* For non-MLO, leave the files in the main directory. */ 1294 if (link_sta->sta->sta.valid_links) { 1295 char link_dir_name[10]; 1296 1297 snprintf(link_dir_name, sizeof(link_dir_name), 1298 "link-%d", link_sta->link_id); 1299 1300 link_sta->debugfs_dir = 1301 debugfs_create_dir(link_dir_name, 1302 link_sta->sta->debugfs_dir); 1303 1304 DEBUGFS_ADD(addr); 1305 } else { 1306 if (WARN_ON(link_sta != &link_sta->sta->deflink)) 1307 return; 1308 1309 link_sta->debugfs_dir = link_sta->sta->debugfs_dir; 1310 } 1311 1312 DEBUGFS_ADD(ht_capa); 1313 DEBUGFS_ADD(vht_capa); 1314 DEBUGFS_ADD(he_capa); 1315 DEBUGFS_ADD(eht_capa); 1316 1317 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); 1318 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); 1319 } 1320 1321 void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta) 1322 { 1323 if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) { 1324 link_sta->debugfs_dir = NULL; 1325 return; 1326 } 1327 1328 if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) { 1329 WARN_ON(link_sta != &link_sta->sta->deflink); 1330 link_sta->sta->debugfs_dir = NULL; 1331 return; 1332 } 1333 1334 debugfs_remove_recursive(link_sta->debugfs_dir); 1335 link_sta->debugfs_dir = NULL; 1336 } 1337 1338 void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta) 1339 { 1340 if (WARN_ON(!link_sta->debugfs_dir)) 1341 return; 1342 1343 drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata, 1344 link_sta->pub, link_sta->debugfs_dir); 1345 } 1346 1347 void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta) 1348 { 1349 if (!link_sta->debugfs_dir) 1350 return; 1351 1352 if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir)) 1353 return; 1354 1355 /* Recreate the directory excluding the driver data */ 1356 debugfs_remove_recursive(link_sta->debugfs_dir); 1357 link_sta->debugfs_dir = NULL; 1358 1359 ieee80211_link_sta_debugfs_add(link_sta); 1360 } 1361