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 - 2023 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 attributes */ 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 debugfs_short_fops sta_ ##name## _ops = { \ 34 .read = sta_##name##_read, \ 35 .llseek = generic_file_llseek, \ 36 } 37 38 #define STA_OPS_RW(name) \ 39 static const struct debugfs_short_fops sta_ ##name## _ops = { \ 40 .read = sta_##name##_read, \ 41 .write = sta_##name##_write, \ 42 .llseek = generic_file_llseek, \ 43 } 44 45 #define STA_FILE(name, field, format) \ 46 STA_READ_##format(name, field) \ 47 STA_OPS(name) 48 49 STA_FILE(aid, sta.aid, D); 50 51 static const char * const sta_flag_names[] = { 52 #define FLAG(F) [WLAN_STA_##F] = #F 53 FLAG(AUTH), 54 FLAG(ASSOC), 55 FLAG(PS_STA), 56 FLAG(AUTHORIZED), 57 FLAG(SHORT_PREAMBLE), 58 FLAG(WDS), 59 FLAG(CLEAR_PS_FILT), 60 FLAG(MFP), 61 FLAG(BLOCK_BA), 62 FLAG(PS_DRIVER), 63 FLAG(PSPOLL), 64 FLAG(TDLS_PEER), 65 FLAG(TDLS_PEER_AUTH), 66 FLAG(TDLS_INITIATOR), 67 FLAG(TDLS_CHAN_SWITCH), 68 FLAG(TDLS_OFF_CHANNEL), 69 FLAG(TDLS_WIDER_BW), 70 FLAG(UAPSD), 71 FLAG(SP), 72 FLAG(4ADDR_EVENT), 73 FLAG(INSERTED), 74 FLAG(RATE_CONTROL), 75 FLAG(TOFFSET_KNOWN), 76 FLAG(MPSP_OWNER), 77 FLAG(MPSP_RECIPIENT), 78 FLAG(PS_DELIVER), 79 FLAG(USES_ENCRYPTION), 80 FLAG(DECAP_OFFLOAD), 81 #undef FLAG 82 }; 83 84 static ssize_t sta_flags_read(struct file *file, char __user *userbuf, 85 size_t count, loff_t *ppos) 86 { 87 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf; 88 char *end = buf + sizeof(buf) - 1; 89 struct sta_info *sta = file->private_data; 90 unsigned int flg; 91 92 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS); 93 94 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) { 95 if (test_sta_flag(sta, flg)) 96 pos += scnprintf(pos, end - pos, "%s\n", 97 sta_flag_names[flg]); 98 } 99 100 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); 101 } 102 STA_OPS(flags); 103 104 static ssize_t sta_num_ps_buf_frames_read(struct file *file, 105 char __user *userbuf, 106 size_t count, loff_t *ppos) 107 { 108 struct sta_info *sta = file->private_data; 109 char buf[17*IEEE80211_NUM_ACS], *p = buf; 110 int ac; 111 112 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 113 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, 114 skb_queue_len(&sta->ps_tx_buf[ac]) + 115 skb_queue_len(&sta->tx_filtered[ac])); 116 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 117 } 118 STA_OPS(num_ps_buf_frames); 119 120 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, 121 size_t count, loff_t *ppos) 122 { 123 char buf[15*IEEE80211_NUM_TIDS], *p = buf; 124 int i; 125 struct sta_info *sta = file->private_data; 126 for (i = 0; i < IEEE80211_NUM_TIDS; i++) 127 p += scnprintf(p, sizeof(buf)+buf-p, "%x ", 128 le16_to_cpu(sta->last_seq_ctrl[i])); 129 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 130 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 131 } 132 STA_OPS(last_seq_ctrl); 133 134 #define AQM_TXQ_ENTRY_LEN 130 135 136 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf, 137 size_t count, loff_t *ppos) 138 { 139 struct sta_info *sta = file->private_data; 140 struct ieee80211_local *local = sta->local; 141 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2); 142 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 143 struct txq_info *txqi; 144 ssize_t rv; 145 int i; 146 147 if (!buf) 148 return -ENOMEM; 149 150 spin_lock_bh(&local->fq.lock); 151 rcu_read_lock(); 152 153 p += scnprintf(p, 154 bufsz + buf - p, 155 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n"); 156 157 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 158 if (!sta->sta.txq[i]) 159 continue; 160 txqi = to_txq_info(sta->sta.txq[i]); 161 p += scnprintf(p, bufsz + buf - p, 162 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s%s)\n", 163 txqi->txq.tid, 164 txqi->txq.ac, 165 txqi->tin.backlog_bytes, 166 txqi->tin.backlog_packets, 167 txqi->tin.flows, 168 txqi->cstats.drop_count, 169 txqi->cstats.ecn_mark, 170 txqi->tin.overlimit, 171 txqi->tin.collisions, 172 txqi->tin.tx_bytes, 173 txqi->tin.tx_packets, 174 txqi->flags, 175 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN", 176 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "", 177 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "", 178 test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : ""); 179 } 180 181 rcu_read_unlock(); 182 spin_unlock_bh(&local->fq.lock); 183 184 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 185 kfree(buf); 186 return rv; 187 } 188 STA_OPS(aqm); 189 190 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf, 191 size_t count, loff_t *ppos) 192 { 193 struct sta_info *sta = file->private_data; 194 struct ieee80211_local *local = sta->sdata->local; 195 size_t bufsz = 400; 196 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 197 u64 rx_airtime = 0, tx_airtime = 0; 198 s32 deficit[IEEE80211_NUM_ACS]; 199 ssize_t rv; 200 int ac; 201 202 if (!buf) 203 return -ENOMEM; 204 205 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 206 spin_lock_bh(&local->active_txq_lock[ac]); 207 rx_airtime += sta->airtime[ac].rx_airtime; 208 tx_airtime += sta->airtime[ac].tx_airtime; 209 deficit[ac] = sta->airtime[ac].deficit; 210 spin_unlock_bh(&local->active_txq_lock[ac]); 211 } 212 213 p += scnprintf(p, bufsz + buf - p, 214 "RX: %llu us\nTX: %llu us\nWeight: %u\n" 215 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n", 216 rx_airtime, tx_airtime, sta->airtime_weight, 217 deficit[0], deficit[1], deficit[2], deficit[3]); 218 219 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 220 kfree(buf); 221 return rv; 222 } 223 224 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf, 225 size_t count, loff_t *ppos) 226 { 227 struct sta_info *sta = file->private_data; 228 struct ieee80211_local *local = sta->sdata->local; 229 int ac; 230 231 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 232 spin_lock_bh(&local->active_txq_lock[ac]); 233 sta->airtime[ac].rx_airtime = 0; 234 sta->airtime[ac].tx_airtime = 0; 235 sta->airtime[ac].deficit = sta->airtime_weight; 236 spin_unlock_bh(&local->active_txq_lock[ac]); 237 } 238 239 return count; 240 } 241 STA_OPS_RW(airtime); 242 243 static ssize_t sta_aql_read(struct file *file, char __user *userbuf, 244 size_t count, loff_t *ppos) 245 { 246 struct sta_info *sta = file->private_data; 247 struct ieee80211_local *local = sta->sdata->local; 248 size_t bufsz = 400; 249 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 250 u32 q_depth[IEEE80211_NUM_ACS]; 251 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS]; 252 ssize_t rv; 253 int ac; 254 255 if (!buf) 256 return -ENOMEM; 257 258 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 259 spin_lock_bh(&local->active_txq_lock[ac]); 260 q_limit_l[ac] = sta->airtime[ac].aql_limit_low; 261 q_limit_h[ac] = sta->airtime[ac].aql_limit_high; 262 spin_unlock_bh(&local->active_txq_lock[ac]); 263 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending); 264 } 265 266 p += scnprintf(p, bufsz + buf - p, 267 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n" 268 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n", 269 q_depth[0], q_depth[1], q_depth[2], q_depth[3], 270 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1], 271 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]); 272 273 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 274 kfree(buf); 275 return rv; 276 } 277 278 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf, 279 size_t count, loff_t *ppos) 280 { 281 struct sta_info *sta = file->private_data; 282 u32 ac, q_limit_l, q_limit_h; 283 char _buf[100] = {}, *buf = _buf; 284 285 if (count > sizeof(_buf)) 286 return -EINVAL; 287 288 if (copy_from_user(buf, userbuf, count)) 289 return -EFAULT; 290 291 buf[sizeof(_buf) - 1] = '\0'; 292 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h) 293 != 3) 294 return -EINVAL; 295 296 if (ac >= IEEE80211_NUM_ACS) 297 return -EINVAL; 298 299 sta->airtime[ac].aql_limit_low = q_limit_l; 300 sta->airtime[ac].aql_limit_high = q_limit_h; 301 302 return count; 303 } 304 STA_OPS_RW(aql); 305 306 307 static ssize_t sta_agg_status_do_read(struct wiphy *wiphy, struct file *file, 308 char *buf, size_t bufsz, void *data) 309 { 310 struct sta_info *sta = data; 311 char *p = buf; 312 int i; 313 struct tid_ampdu_rx *tid_rx; 314 struct tid_ampdu_tx *tid_tx; 315 316 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n", 317 sta->ampdu_mlme.dialog_token_allocator + 1); 318 p += scnprintf(p, bufsz + buf - p, 319 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 320 321 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 322 bool tid_rx_valid; 323 324 tid_rx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_rx[i]); 325 tid_tx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_tx[i]); 326 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid); 327 328 p += scnprintf(p, bufsz + buf - p, "%02d", i); 329 p += scnprintf(p, bufsz + buf - p, "\t\t%x", 330 tid_rx_valid); 331 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 332 tid_rx_valid ? 333 sta->ampdu_mlme.tid_rx_token[i] : 0); 334 p += scnprintf(p, bufsz + buf - p, "\t%#.3x", 335 tid_rx ? tid_rx->ssn : 0); 336 337 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx); 338 p += scnprintf(p, bufsz + buf - p, "\t%#.2x", 339 tid_tx ? tid_tx->dialog_token : 0); 340 p += scnprintf(p, bufsz + buf - p, "\t%03d", 341 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 342 p += scnprintf(p, bufsz + buf - p, "\n"); 343 } 344 345 return p - buf; 346 } 347 348 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 349 size_t count, loff_t *ppos) 350 { 351 struct sta_info *sta = file->private_data; 352 struct wiphy *wiphy = sta->local->hw.wiphy; 353 size_t bufsz = 71 + IEEE80211_NUM_TIDS * 40; 354 char *buf = kmalloc(bufsz, GFP_KERNEL); 355 ssize_t ret; 356 357 if (!buf) 358 return -ENOMEM; 359 360 ret = wiphy_locked_debugfs_read(wiphy, file, buf, bufsz, 361 userbuf, count, ppos, 362 sta_agg_status_do_read, sta); 363 kfree(buf); 364 365 return ret; 366 } 367 368 static ssize_t sta_agg_status_do_write(struct wiphy *wiphy, struct file *file, 369 char *buf, size_t count, void *data) 370 { 371 struct sta_info *sta = data; 372 bool start, tx; 373 unsigned long tid; 374 char *pos = buf; 375 int ret, timeout = 5000; 376 377 buf = strsep(&pos, " "); 378 if (!buf) 379 return -EINVAL; 380 381 if (!strcmp(buf, "tx")) 382 tx = true; 383 else if (!strcmp(buf, "rx")) 384 tx = false; 385 else 386 return -EINVAL; 387 388 buf = strsep(&pos, " "); 389 if (!buf) 390 return -EINVAL; 391 if (!strcmp(buf, "start")) { 392 start = true; 393 if (!tx) 394 return -EINVAL; 395 } else if (!strcmp(buf, "stop")) { 396 start = false; 397 } else { 398 return -EINVAL; 399 } 400 401 buf = strsep(&pos, " "); 402 if (!buf) 403 return -EINVAL; 404 if (sscanf(buf, "timeout=%d", &timeout) == 1) { 405 buf = strsep(&pos, " "); 406 if (!buf || !tx || !start) 407 return -EINVAL; 408 } 409 410 ret = kstrtoul(buf, 0, &tid); 411 if (ret || tid >= IEEE80211_NUM_TIDS) 412 return -EINVAL; 413 414 if (tx) { 415 if (start) 416 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 417 timeout); 418 else 419 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 420 } else { 421 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 422 3, true); 423 ret = 0; 424 } 425 426 return ret ?: count; 427 } 428 429 static ssize_t sta_agg_status_write(struct file *file, 430 const char __user *userbuf, 431 size_t count, loff_t *ppos) 432 { 433 struct sta_info *sta = file->private_data; 434 struct wiphy *wiphy = sta->local->hw.wiphy; 435 char _buf[26]; 436 437 return wiphy_locked_debugfs_write(wiphy, file, _buf, sizeof(_buf), 438 userbuf, count, 439 sta_agg_status_do_write, sta); 440 } 441 STA_OPS_RW(agg_status); 442 443 /* link sta attributes */ 444 #define LINK_STA_OPS(name) \ 445 static const struct debugfs_short_fops link_sta_ ##name## _ops = { \ 446 .read = link_sta_##name##_read, \ 447 .llseek = generic_file_llseek, \ 448 } 449 450 static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf, 451 size_t count, loff_t *ppos) 452 { 453 struct link_sta_info *link_sta = file->private_data; 454 u8 mac[MAC_ADDR_STR_LEN + 2]; 455 456 snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr); 457 458 return simple_read_from_buffer(userbuf, count, ppos, mac, 459 MAC_ADDR_STR_LEN + 1); 460 } 461 462 LINK_STA_OPS(addr); 463 464 static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf, 465 size_t count, loff_t *ppos) 466 { 467 #define PRINT_HT_CAP(_cond, _str) \ 468 do { \ 469 if (_cond) \ 470 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \ 471 } while (0) 472 char *buf, *p; 473 int i; 474 ssize_t bufsz = 512; 475 struct link_sta_info *link_sta = file->private_data; 476 struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap; 477 ssize_t ret; 478 479 buf = kzalloc(bufsz, GFP_KERNEL); 480 if (!buf) 481 return -ENOMEM; 482 p = buf; 483 484 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n", 485 htc->ht_supported ? "" : "not "); 486 if (htc->ht_supported) { 487 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap); 488 489 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 490 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 491 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 492 493 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 494 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 495 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 496 497 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 498 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 499 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 500 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 501 502 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 503 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 504 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 505 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 506 507 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 508 509 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 510 "3839 bytes"); 511 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 512 "7935 bytes"); 513 514 /* 515 * For beacons and probe response this would mean the BSS 516 * does or does not allow the usage of DSSS/CCK HT40. 517 * Otherwise it means the STA does or does not use 518 * DSSS/CCK HT40. 519 */ 520 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 521 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 522 523 /* BIT(13) is reserved */ 524 525 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 526 527 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 528 529 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n", 530 htc->ampdu_factor, htc->ampdu_density); 531 p += scnprintf(p, bufsz + buf - p, "MCS mask:"); 532 533 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 534 p += scnprintf(p, bufsz + buf - p, " %.2x", 535 htc->mcs.rx_mask[i]); 536 p += scnprintf(p, bufsz + buf - p, "\n"); 537 538 /* If not set this is meaningless */ 539 if (le16_to_cpu(htc->mcs.rx_highest)) { 540 p += scnprintf(p, bufsz + buf - p, 541 "MCS rx highest: %d Mbps\n", 542 le16_to_cpu(htc->mcs.rx_highest)); 543 } 544 545 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n", 546 htc->mcs.tx_params); 547 } 548 549 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 550 kfree(buf); 551 return ret; 552 } 553 LINK_STA_OPS(ht_capa); 554 555 static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf, 556 size_t count, loff_t *ppos) 557 { 558 char *buf, *p; 559 struct link_sta_info *link_sta = file->private_data; 560 struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap; 561 ssize_t ret; 562 ssize_t bufsz = 512; 563 564 buf = kzalloc(bufsz, GFP_KERNEL); 565 if (!buf) 566 return -ENOMEM; 567 p = buf; 568 569 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n", 570 vhtc->vht_supported ? "" : "not "); 571 if (vhtc->vht_supported) { 572 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n", 573 vhtc->cap); 574 #define PFLAG(a, b) \ 575 do { \ 576 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \ 577 p += scnprintf(p, bufsz + buf - p, \ 578 "\t\t%s\n", b); \ 579 } while (0) 580 581 switch (vhtc->cap & 0x3) { 582 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 583 p += scnprintf(p, bufsz + buf - p, 584 "\t\tMAX-MPDU-3895\n"); 585 break; 586 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 587 p += scnprintf(p, bufsz + buf - p, 588 "\t\tMAX-MPDU-7991\n"); 589 break; 590 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 591 p += scnprintf(p, bufsz + buf - p, 592 "\t\tMAX-MPDU-11454\n"); 593 break; 594 default: 595 p += scnprintf(p, bufsz + buf - p, 596 "\t\tMAX-MPDU-UNKNOWN\n"); 597 } 598 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 599 case 0: 600 p += scnprintf(p, bufsz + buf - p, 601 "\t\t80Mhz\n"); 602 break; 603 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 604 p += scnprintf(p, bufsz + buf - p, 605 "\t\t160Mhz\n"); 606 break; 607 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 608 p += scnprintf(p, bufsz + buf - p, 609 "\t\t80+80Mhz\n"); 610 break; 611 default: 612 p += scnprintf(p, bufsz + buf - p, 613 "\t\tUNKNOWN-MHZ: 0x%x\n", 614 (vhtc->cap >> 2) & 0x3); 615 } 616 PFLAG(RXLDPC, "RXLDPC"); 617 PFLAG(SHORT_GI_80, "SHORT-GI-80"); 618 PFLAG(SHORT_GI_160, "SHORT-GI-160"); 619 PFLAG(TXSTBC, "TXSTBC"); 620 p += scnprintf(p, bufsz + buf - p, 621 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7); 622 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE"); 623 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE"); 624 p += scnprintf(p, bufsz + buf - p, 625 "\t\tBEAMFORMEE-STS: 0x%x\n", 626 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >> 627 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 628 p += scnprintf(p, bufsz + buf - p, 629 "\t\tSOUNDING-DIMENSIONS: 0x%x\n", 630 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK) 631 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 632 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE"); 633 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE"); 634 PFLAG(VHT_TXOP_PS, "TXOP-PS"); 635 PFLAG(HTC_VHT, "HTC-VHT"); 636 p += scnprintf(p, bufsz + buf - p, 637 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n", 638 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >> 639 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT); 640 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB, 641 "LINK-ADAPTATION-VHT-UNSOL-MFB"); 642 p += scnprintf(p, bufsz + buf - p, 643 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n", 644 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26); 645 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN"); 646 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN"); 647 648 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n", 649 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 650 if (vhtc->vht_mcs.rx_highest) 651 p += scnprintf(p, bufsz + buf - p, 652 "MCS RX highest: %d Mbps\n", 653 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 654 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n", 655 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 656 if (vhtc->vht_mcs.tx_highest) 657 p += scnprintf(p, bufsz + buf - p, 658 "MCS TX highest: %d Mbps\n", 659 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 660 #undef PFLAG 661 } 662 663 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 664 kfree(buf); 665 return ret; 666 } 667 LINK_STA_OPS(vht_capa); 668 669 static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf, 670 size_t count, loff_t *ppos) 671 { 672 char *buf, *p; 673 size_t buf_sz = PAGE_SIZE; 674 struct link_sta_info *link_sta = file->private_data; 675 struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap; 676 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; 677 u8 ppe_size; 678 u8 *cap; 679 int i; 680 ssize_t ret; 681 682 buf = kmalloc(buf_sz, GFP_KERNEL); 683 if (!buf) 684 return -ENOMEM; 685 p = buf; 686 687 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", 688 hec->has_he ? "" : "not "); 689 if (!hec->has_he) 690 goto out; 691 692 cap = hec->he_cap_elem.mac_cap_info; 693 p += scnprintf(p, buf_sz + buf - p, 694 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 695 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]); 696 697 #define PRINT(fmt, ...) \ 698 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 699 ##__VA_ARGS__) 700 701 #define PFLAG(t, n, a, b) \ 702 do { \ 703 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ 704 PRINT("%s", b); \ 705 } while (0) 706 707 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ 708 do { \ 709 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ 710 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ 711 PRINT(fmt, (s << idx) + (m * idx)); \ 712 } while (0) 713 714 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ 715 do { \ 716 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ 717 PRINT("%s", b); \ 718 break; \ 719 } \ 720 PFLAG_RANGE(t, i, n, s, m, off, fmt); \ 721 } while (0) 722 723 PFLAG(MAC, 0, HTC_HE, "HTC-HE"); 724 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); 725 PFLAG(MAC, 0, TWT_RES, "TWT-RES"); 726 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, 727 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); 728 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, 729 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); 730 731 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, 732 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); 733 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, 734 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); 735 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1, 736 "MULTI-TID-AGG-RX-QOS-%d"); 737 738 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { 739 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { 740 case 0: 741 PRINT("LINK-ADAPTATION-NO-FEEDBACK"); 742 break; 743 case 1: 744 PRINT("LINK-ADAPTATION-RESERVED"); 745 break; 746 case 2: 747 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); 748 break; 749 case 3: 750 PRINT("LINK-ADAPTATION-BOTH"); 751 break; 752 } 753 } 754 755 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); 756 PFLAG(MAC, 2, TRS, "TRS"); 757 PFLAG(MAC, 2, BSR, "BSR"); 758 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); 759 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); 760 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); 761 PFLAG(MAC, 2, ACK_EN, "ACK-EN"); 762 763 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); 764 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); 765 766 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) { 767 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0: 768 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0"); 769 break; 770 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1: 771 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1"); 772 break; 773 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2: 774 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2"); 775 break; 776 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3: 777 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3"); 778 break; 779 } 780 781 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG"); 782 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); 783 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); 784 785 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); 786 PFLAG(MAC, 4, QTP, "QTP"); 787 PFLAG(MAC, 4, BQR, "BQR"); 788 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP"); 789 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); 790 PFLAG(MAC, 4, OPS, "OPS"); 791 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU"); 792 793 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7); 794 795 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION, 796 "SUBCHAN-SELECTIVE-TRANSMISSION"); 797 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU"); 798 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX"); 799 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS"); 800 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING"); 801 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX"); 802 803 cap = hec->he_cap_elem.phy_cap_info; 804 p += scnprintf(p, buf_sz + buf - p, 805 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 806 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], 807 cap[7], cap[8], cap[9], cap[10]); 808 809 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, 810 "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); 811 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, 812 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); 813 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, 814 "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); 815 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, 816 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); 817 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, 818 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); 819 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, 820 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); 821 822 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { 823 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: 824 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); 825 break; 826 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: 827 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); 828 break; 829 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: 830 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); 831 break; 832 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: 833 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); 834 break; 835 } 836 837 PFLAG(PHY, 1, DEVICE_CLASS_A, 838 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); 839 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, 840 "LDPC-CODING-IN-PAYLOAD"); 841 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, 842 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); 843 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); 844 845 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); 846 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); 847 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); 848 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); 849 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); 850 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); 851 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); 852 853 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { 854 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: 855 PRINT("DCM-MAX-CONST-TX-NO-DCM"); 856 break; 857 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: 858 PRINT("DCM-MAX-CONST-TX-BPSK"); 859 break; 860 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: 861 PRINT("DCM-MAX-CONST-TX-QPSK"); 862 break; 863 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: 864 PRINT("DCM-MAX-CONST-TX-16-QAM"); 865 break; 866 } 867 868 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); 869 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); 870 871 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { 872 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: 873 PRINT("DCM-MAX-CONST-RX-NO-DCM"); 874 break; 875 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: 876 PRINT("DCM-MAX-CONST-RX-BPSK"); 877 break; 878 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: 879 PRINT("DCM-MAX-CONST-RX-QPSK"); 880 break; 881 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: 882 PRINT("DCM-MAX-CONST-RX-16-QAM"); 883 break; 884 } 885 886 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); 887 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); 888 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU, 889 "RX-PARTIAL-BW-SU-IN-20MHZ-MU"); 890 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); 891 892 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 893 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); 894 895 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, 896 "BEAMFORMEE-MAX-STS-UNDER-%d"); 897 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, 898 "BEAMFORMEE-MAX-STS-ABOVE-%d"); 899 900 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, 901 "NUM-SND-DIM-UNDER-80MHZ-%d"); 902 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, 903 "NUM-SND-DIM-ABOVE-80MHZ-%d"); 904 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); 905 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); 906 907 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); 908 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); 909 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB"); 910 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB, 911 "MU-BEAMFORMING-PARTIAL-BW-FB"); 912 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); 913 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); 914 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, 915 "PARTIAL-BANDWIDTH-DL-MUMIMO"); 916 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); 917 918 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR"); 919 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP"); 920 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, 921 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); 922 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); 923 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); 924 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); 925 926 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, 927 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); 928 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, 929 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); 930 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); 931 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); 932 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, 933 "HE-ER-SU-1XLTF-AND-08-US-GI"); 934 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF, 935 "MIDAMBLE-RX-TX-2X-AND-1XLTF"); 936 937 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) { 938 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242: 939 PRINT("DCM-MAX-RU-242"); 940 break; 941 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484: 942 PRINT("DCM-MAX-RU-484"); 943 break; 944 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996: 945 PRINT("DCM-MAX-RU-996"); 946 break; 947 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996: 948 PRINT("DCM-MAX-RU-2x996"); 949 break; 950 } 951 952 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM, 953 "LONGER-THAN-16-SIGB-OFDM-SYM"); 954 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK, 955 "NON-TRIGGERED-CQI-FEEDBACK"); 956 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU, 957 "TX-1024-QAM-LESS-THAN-242-TONE-RU"); 958 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU, 959 "RX-1024-QAM-LESS-THAN-242-TONE-RU"); 960 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB, 961 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB"); 962 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB, 963 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB"); 964 965 switch (u8_get_bits(cap[9], 966 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) { 967 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 968 PRINT("NOMINAL-PACKET-PADDING-0US"); 969 break; 970 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 971 PRINT("NOMINAL-PACKET-PADDING-8US"); 972 break; 973 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 974 PRINT("NOMINAL-PACKET-PADDING-16US"); 975 break; 976 } 977 978 #undef PFLAG_RANGE_DEFAULT 979 #undef PFLAG_RANGE 980 #undef PFLAG 981 982 #define PRINT_NSS_SUPP(f, n) \ 983 do { \ 984 int _i; \ 985 u16 v = le16_to_cpu(nss->f); \ 986 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ 987 for (_i = 0; _i < 8; _i += 2) { \ 988 switch ((v >> _i) & 0x3) { \ 989 case 0: \ 990 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \ 991 break; \ 992 case 1: \ 993 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \ 994 break; \ 995 case 2: \ 996 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \ 997 break; \ 998 case 3: \ 999 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \ 1000 break; \ 1001 } \ 1002 } \ 1003 } while (0) 1004 1005 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); 1006 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); 1007 1008 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { 1009 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); 1010 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); 1011 } 1012 1013 if (cap[0] & 1014 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { 1015 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); 1016 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); 1017 } 1018 1019 #undef PRINT_NSS_SUPP 1020 #undef PRINT 1021 1022 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) 1023 goto out; 1024 1025 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", 1026 hec->ppe_thres[0]); 1027 1028 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); 1029 for (i = 1; i < ppe_size; i++) { 1030 p += scnprintf(p, buf_sz + buf - p, " %#.2x", 1031 hec->ppe_thres[i]); 1032 } 1033 p += scnprintf(p, buf_sz + buf - p, "\n"); 1034 1035 out: 1036 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 1037 kfree(buf); 1038 return ret; 1039 } 1040 LINK_STA_OPS(he_capa); 1041 1042 static ssize_t link_sta_eht_capa_read(struct file *file, char __user *userbuf, 1043 size_t count, loff_t *ppos) 1044 { 1045 char *buf, *p; 1046 size_t buf_sz = PAGE_SIZE; 1047 struct link_sta_info *link_sta = file->private_data; 1048 struct ieee80211_sta_eht_cap *bec = &link_sta->pub->eht_cap; 1049 struct ieee80211_eht_cap_elem_fixed *fixed = &bec->eht_cap_elem; 1050 struct ieee80211_eht_mcs_nss_supp *nss = &bec->eht_mcs_nss_supp; 1051 u8 *cap; 1052 int i; 1053 ssize_t ret; 1054 static const char *mcs_desc[] = { "0-7", "8-9", "10-11", "12-13"}; 1055 1056 buf = kmalloc(buf_sz, GFP_KERNEL); 1057 if (!buf) 1058 return -ENOMEM; 1059 p = buf; 1060 1061 p += scnprintf(p, buf_sz + buf - p, "EHT %ssupported\n", 1062 bec->has_eht ? "" : "not "); 1063 if (!bec->has_eht) 1064 goto out; 1065 1066 p += scnprintf(p, buf_sz + buf - p, 1067 "MAC-CAP: %#.2x %#.2x\n", 1068 fixed->mac_cap_info[0], fixed->mac_cap_info[1]); 1069 p += scnprintf(p, buf_sz + buf - p, 1070 "PHY-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 1071 fixed->phy_cap_info[0], fixed->phy_cap_info[1], 1072 fixed->phy_cap_info[2], fixed->phy_cap_info[3], 1073 fixed->phy_cap_info[4], fixed->phy_cap_info[5], 1074 fixed->phy_cap_info[6], fixed->phy_cap_info[7], 1075 fixed->phy_cap_info[8]); 1076 1077 #define PRINT(fmt, ...) \ 1078 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 1079 ##__VA_ARGS__) 1080 1081 #define PFLAG(t, n, a, b) \ 1082 do { \ 1083 if (cap[n] & IEEE80211_EHT_##t##_CAP##n##_##a) \ 1084 PRINT("%s", b); \ 1085 } while (0) 1086 1087 cap = fixed->mac_cap_info; 1088 PFLAG(MAC, 0, EPCS_PRIO_ACCESS, "EPCS-PRIO-ACCESS"); 1089 PFLAG(MAC, 0, OM_CONTROL, "OM-CONTROL"); 1090 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE1, "TRIG-TXOP-SHARING-MODE1"); 1091 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE2, "TRIG-TXOP-SHARING-MODE2"); 1092 PFLAG(MAC, 0, RESTRICTED_TWT, "RESTRICTED-TWT"); 1093 PFLAG(MAC, 0, SCS_TRAFFIC_DESC, "SCS-TRAFFIC-DESC"); 1094 switch ((cap[0] & 0xc0) >> 6) { 1095 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895: 1096 PRINT("MAX-MPDU-LEN: 3985"); 1097 break; 1098 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991: 1099 PRINT("MAX-MPDU-LEN: 7991"); 1100 break; 1101 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454: 1102 PRINT("MAX-MPDU-LEN: 11454"); 1103 break; 1104 } 1105 1106 cap = fixed->phy_cap_info; 1107 PFLAG(PHY, 0, 320MHZ_IN_6GHZ, "320MHZ-IN-6GHZ"); 1108 PFLAG(PHY, 0, 242_TONE_RU_GT20MHZ, "242-TONE-RU-GT20MHZ"); 1109 PFLAG(PHY, 0, NDP_4_EHT_LFT_32_GI, "NDP-4-EHT-LFT-32-GI"); 1110 PFLAG(PHY, 0, PARTIAL_BW_UL_MU_MIMO, "PARTIAL-BW-UL-MU-MIMO"); 1111 PFLAG(PHY, 0, SU_BEAMFORMER, "SU-BEAMFORMER"); 1112 PFLAG(PHY, 0, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 1113 i = cap[0] >> 7; 1114 i |= (cap[1] & 0x3) << 1; 1115 PRINT("BEAMFORMEE-80-NSS: %i", i); 1116 PRINT("BEAMFORMEE-160-NSS: %i", (cap[1] >> 2) & 0x7); 1117 PRINT("BEAMFORMEE-320-NSS: %i", (cap[1] >> 5) & 0x7); 1118 PRINT("SOUNDING-DIM-80-NSS: %i", (cap[2] & 0x7)); 1119 PRINT("SOUNDING-DIM-160-NSS: %i", (cap[2] >> 3) & 0x7); 1120 i = cap[2] >> 6; 1121 i |= (cap[3] & 0x1) << 3; 1122 PRINT("SOUNDING-DIM-320-NSS: %i", i); 1123 1124 PFLAG(PHY, 3, NG_16_SU_FEEDBACK, "NG-16-SU-FEEDBACK"); 1125 PFLAG(PHY, 3, NG_16_MU_FEEDBACK, "NG-16-MU-FEEDBACK"); 1126 PFLAG(PHY, 3, CODEBOOK_4_2_SU_FDBK, "CODEBOOK-4-2-SU-FDBK"); 1127 PFLAG(PHY, 3, CODEBOOK_7_5_MU_FDBK, "CODEBOOK-7-5-MU-FDBK"); 1128 PFLAG(PHY, 3, TRIG_SU_BF_FDBK, "TRIG-SU-BF-FDBK"); 1129 PFLAG(PHY, 3, TRIG_MU_BF_PART_BW_FDBK, "TRIG-MU-BF-PART-BW-FDBK"); 1130 PFLAG(PHY, 3, TRIG_CQI_FDBK, "TRIG-CQI-FDBK"); 1131 1132 PFLAG(PHY, 4, PART_BW_DL_MU_MIMO, "PART-BW-DL-MU-MIMO"); 1133 PFLAG(PHY, 4, PSR_SR_SUPP, "PSR-SR-SUPP"); 1134 PFLAG(PHY, 4, POWER_BOOST_FACT_SUPP, "POWER-BOOST-FACT-SUPP"); 1135 PFLAG(PHY, 4, EHT_MU_PPDU_4_EHT_LTF_08_GI, "EHT-MU-PPDU-4-EHT-LTF-08-GI"); 1136 PRINT("MAX_NC: %i", cap[4] >> 4); 1137 1138 PFLAG(PHY, 5, NON_TRIG_CQI_FEEDBACK, "NON-TRIG-CQI-FEEDBACK"); 1139 PFLAG(PHY, 5, TX_LESS_242_TONE_RU_SUPP, "TX-LESS-242-TONE-RU-SUPP"); 1140 PFLAG(PHY, 5, RX_LESS_242_TONE_RU_SUPP, "RX-LESS-242-TONE-RU-SUPP"); 1141 PFLAG(PHY, 5, PPE_THRESHOLD_PRESENT, "PPE_THRESHOLD_PRESENT"); 1142 switch (cap[5] >> 4 & 0x3) { 1143 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 1144 PRINT("NOMINAL_PKT_PAD: 0us"); 1145 break; 1146 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 1147 PRINT("NOMINAL_PKT_PAD: 8us"); 1148 break; 1149 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 1150 PRINT("NOMINAL_PKT_PAD: 16us"); 1151 break; 1152 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 1153 PRINT("NOMINAL_PKT_PAD: 20us"); 1154 break; 1155 } 1156 i = cap[5] >> 6; 1157 i |= cap[6] & 0x7; 1158 PRINT("MAX-NUM-SUPP-EHT-LTF: %i", i); 1159 PFLAG(PHY, 5, SUPP_EXTRA_EHT_LTF, "SUPP-EXTRA-EHT-LTF"); 1160 1161 i = (cap[6] >> 3) & 0xf; 1162 PRINT("MCS15-SUPP-MASK: %i", i); 1163 PFLAG(PHY, 6, EHT_DUP_6GHZ_SUPP, "EHT-DUP-6GHZ-SUPP"); 1164 1165 PFLAG(PHY, 7, 20MHZ_STA_RX_NDP_WIDER_BW, "20MHZ-STA-RX-NDP-WIDER-BW"); 1166 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_80MHZ, "NON-OFDMA-UL-MU-MIMO-80MHZ"); 1167 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_160MHZ, "NON-OFDMA-UL-MU-MIMO-160MHZ"); 1168 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_320MHZ, "NON-OFDMA-UL-MU-MIMO-320MHZ"); 1169 PFLAG(PHY, 7, MU_BEAMFORMER_80MHZ, "MU-BEAMFORMER-80MHZ"); 1170 PFLAG(PHY, 7, MU_BEAMFORMER_160MHZ, "MU-BEAMFORMER-160MHZ"); 1171 PFLAG(PHY, 7, MU_BEAMFORMER_320MHZ, "MU-BEAMFORMER-320MHZ"); 1172 PFLAG(PHY, 7, TB_SOUNDING_FDBK_RATE_LIMIT, "TB-SOUNDING-FDBK-RATE-LIMIT"); 1173 1174 PFLAG(PHY, 8, RX_1024QAM_WIDER_BW_DL_OFDMA, "RX-1024QAM-WIDER-BW-DL-OFDMA"); 1175 PFLAG(PHY, 8, RX_4096QAM_WIDER_BW_DL_OFDMA, "RX-4096QAM-WIDER-BW-DL-OFDMA"); 1176 1177 #undef PFLAG 1178 1179 PRINT(""); /* newline */ 1180 if (!(link_sta->pub->he_cap.he_cap_elem.phy_cap_info[0] & 1181 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) { 1182 u8 *mcs_vals = (u8 *)(&nss->only_20mhz); 1183 1184 for (i = 0; i < 4; i++) 1185 PRINT("EHT bw=20 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1186 mcs_desc[i], 1187 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1188 } else { 1189 u8 *mcs_vals = (u8 *)(&nss->bw._80); 1190 1191 for (i = 0; i < 3; i++) 1192 PRINT("EHT bw <= 80 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1193 mcs_desc[i + 1], 1194 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1195 1196 mcs_vals = (u8 *)(&nss->bw._160); 1197 for (i = 0; i < 3; i++) 1198 PRINT("EHT bw <= 160 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1199 mcs_desc[i + 1], 1200 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1201 1202 mcs_vals = (u8 *)(&nss->bw._320); 1203 for (i = 0; i < 3; i++) 1204 PRINT("EHT bw <= 320 MHz, max NSS for MCS %s: Rx=%u, Tx=%u", 1205 mcs_desc[i + 1], 1206 mcs_vals[i] & 0xf, mcs_vals[i] >> 4); 1207 } 1208 1209 if (cap[5] & IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 1210 u8 ppe_size = ieee80211_eht_ppe_size(bec->eht_ppe_thres[0], cap); 1211 1212 p += scnprintf(p, buf_sz + buf - p, "EHT PPE Thresholds: "); 1213 for (i = 0; i < ppe_size; i++) 1214 p += scnprintf(p, buf_sz + buf - p, "0x%02x ", 1215 bec->eht_ppe_thres[i]); 1216 PRINT(""); /* newline */ 1217 } 1218 1219 out: 1220 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 1221 kfree(buf); 1222 return ret; 1223 } 1224 LINK_STA_OPS(eht_capa); 1225 1226 #define DEBUGFS_ADD(name) \ 1227 debugfs_create_file(#name, 0400, \ 1228 sta->debugfs_dir, sta, &sta_ ##name## _ops) 1229 1230 #define DEBUGFS_ADD_COUNTER(name, field) \ 1231 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field); 1232 1233 void ieee80211_sta_debugfs_add(struct sta_info *sta) 1234 { 1235 struct ieee80211_local *local = sta->local; 1236 struct ieee80211_sub_if_data *sdata = sta->sdata; 1237 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 1238 u8 mac[MAC_ADDR_STR_LEN + 1]; 1239 1240 if (!stations_dir) 1241 return; 1242 1243 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 1244 1245 /* 1246 * This might fail due to a race condition: 1247 * When mac80211 unlinks a station, the debugfs entries 1248 * remain, but it is already possible to link a new 1249 * station with the same address which triggers adding 1250 * it to debugfs; therefore, if the old station isn't 1251 * destroyed quickly enough the old station's debugfs 1252 * dir might still be around. 1253 */ 1254 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); 1255 1256 DEBUGFS_ADD(flags); 1257 DEBUGFS_ADD(aid); 1258 DEBUGFS_ADD(num_ps_buf_frames); 1259 DEBUGFS_ADD(last_seq_ctrl); 1260 DEBUGFS_ADD(agg_status); 1261 /* FIXME: Kept here as the statistics are only done on the deflink */ 1262 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered); 1263 1264 DEBUGFS_ADD(aqm); 1265 DEBUGFS_ADD(airtime); 1266 1267 if (wiphy_ext_feature_isset(local->hw.wiphy, 1268 NL80211_EXT_FEATURE_AQL)) 1269 DEBUGFS_ADD(aql); 1270 1271 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir, 1272 &sta->driver_buffered_tids); 1273 1274 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); 1275 } 1276 1277 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 1278 { 1279 debugfs_remove_recursive(sta->debugfs_dir); 1280 sta->debugfs_dir = NULL; 1281 } 1282 1283 #undef DEBUGFS_ADD 1284 #undef DEBUGFS_ADD_COUNTER 1285 1286 #define DEBUGFS_ADD(name) \ 1287 debugfs_create_file(#name, 0400, \ 1288 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops) 1289 #define DEBUGFS_ADD_COUNTER(name, field) \ 1290 debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field) 1291 1292 void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta) 1293 { 1294 if (WARN_ON(!link_sta->sta->debugfs_dir)) 1295 return; 1296 1297 /* For non-MLO, leave the files in the main directory. */ 1298 if (link_sta->sta->sta.valid_links) { 1299 char link_dir_name[10]; 1300 1301 snprintf(link_dir_name, sizeof(link_dir_name), 1302 "link-%d", link_sta->link_id); 1303 1304 link_sta->debugfs_dir = 1305 debugfs_create_dir(link_dir_name, 1306 link_sta->sta->debugfs_dir); 1307 1308 DEBUGFS_ADD(addr); 1309 } else { 1310 if (WARN_ON(link_sta != &link_sta->sta->deflink)) 1311 return; 1312 1313 link_sta->debugfs_dir = link_sta->sta->debugfs_dir; 1314 } 1315 1316 DEBUGFS_ADD(ht_capa); 1317 DEBUGFS_ADD(vht_capa); 1318 DEBUGFS_ADD(he_capa); 1319 DEBUGFS_ADD(eht_capa); 1320 1321 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); 1322 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); 1323 } 1324 1325 void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta) 1326 { 1327 if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) { 1328 link_sta->debugfs_dir = NULL; 1329 return; 1330 } 1331 1332 if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) { 1333 WARN_ON(link_sta != &link_sta->sta->deflink); 1334 link_sta->sta->debugfs_dir = NULL; 1335 return; 1336 } 1337 1338 debugfs_remove_recursive(link_sta->debugfs_dir); 1339 link_sta->debugfs_dir = NULL; 1340 } 1341 1342 void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta) 1343 { 1344 if (WARN_ON(!link_sta->debugfs_dir)) 1345 return; 1346 1347 drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata, 1348 link_sta->pub, link_sta->debugfs_dir); 1349 } 1350 1351 void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta) 1352 { 1353 if (!link_sta->debugfs_dir) 1354 return; 1355 1356 if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir)) 1357 return; 1358 1359 /* Recreate the directory excluding the driver data */ 1360 debugfs_remove_recursive(link_sta->debugfs_dir); 1361 link_sta->debugfs_dir = NULL; 1362 1363 ieee80211_link_sta_debugfs_add(link_sta); 1364 } 1365