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 - 2019 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 #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 "target %uus interval %uus ecn %s\n", 156 codel_time_to_us(sta->cparams.target), 157 codel_time_to_us(sta->cparams.interval), 158 sta->cparams.ecn ? "yes" : "no"); 159 p += scnprintf(p, 160 bufsz+buf-p, 161 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n"); 162 163 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 164 if (!sta->sta.txq[i]) 165 continue; 166 txqi = to_txq_info(sta->sta.txq[i]); 167 p += scnprintf(p, bufsz+buf-p, 168 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n", 169 txqi->txq.tid, 170 txqi->txq.ac, 171 txqi->tin.backlog_bytes, 172 txqi->tin.backlog_packets, 173 txqi->tin.flows, 174 txqi->cstats.drop_count, 175 txqi->cstats.ecn_mark, 176 txqi->tin.overlimit, 177 txqi->tin.collisions, 178 txqi->tin.tx_bytes, 179 txqi->tin.tx_packets, 180 txqi->flags, 181 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN", 182 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "", 183 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : ""); 184 } 185 186 rcu_read_unlock(); 187 spin_unlock_bh(&local->fq.lock); 188 189 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 190 kfree(buf); 191 return rv; 192 } 193 STA_OPS(aqm); 194 195 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf, 196 size_t count, loff_t *ppos) 197 { 198 struct sta_info *sta = file->private_data; 199 struct ieee80211_local *local = sta->sdata->local; 200 size_t bufsz = 200; 201 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 202 u64 rx_airtime = 0, tx_airtime = 0; 203 s64 deficit[IEEE80211_NUM_ACS]; 204 ssize_t rv; 205 int ac; 206 207 if (!buf) 208 return -ENOMEM; 209 210 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 211 spin_lock_bh(&local->active_txq_lock[ac]); 212 rx_airtime += sta->airtime[ac].rx_airtime; 213 tx_airtime += sta->airtime[ac].tx_airtime; 214 deficit[ac] = sta->airtime[ac].deficit; 215 spin_unlock_bh(&local->active_txq_lock[ac]); 216 } 217 218 p += scnprintf(p, bufsz + buf - p, 219 "RX: %llu us\nTX: %llu us\nWeight: %u\n" 220 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n", 221 rx_airtime, 222 tx_airtime, 223 sta->airtime_weight, 224 deficit[0], 225 deficit[1], 226 deficit[2], 227 deficit[3]); 228 229 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 230 kfree(buf); 231 return rv; 232 } 233 234 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf, 235 size_t count, loff_t *ppos) 236 { 237 struct sta_info *sta = file->private_data; 238 struct ieee80211_local *local = sta->sdata->local; 239 int ac; 240 241 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 242 spin_lock_bh(&local->active_txq_lock[ac]); 243 sta->airtime[ac].rx_airtime = 0; 244 sta->airtime[ac].tx_airtime = 0; 245 sta->airtime[ac].deficit = sta->airtime_weight; 246 spin_unlock_bh(&local->active_txq_lock[ac]); 247 } 248 249 return count; 250 } 251 STA_OPS_RW(airtime); 252 253 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 254 size_t count, loff_t *ppos) 255 { 256 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; 257 int i; 258 struct sta_info *sta = file->private_data; 259 struct tid_ampdu_rx *tid_rx; 260 struct tid_ampdu_tx *tid_tx; 261 262 rcu_read_lock(); 263 264 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", 265 sta->ampdu_mlme.dialog_token_allocator + 1); 266 p += scnprintf(p, sizeof(buf) + buf - p, 267 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 268 269 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 270 bool tid_rx_valid; 271 272 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 273 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 274 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid); 275 276 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); 277 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", 278 tid_rx_valid); 279 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 280 tid_rx_valid ? 281 sta->ampdu_mlme.tid_rx_token[i] : 0); 282 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", 283 tid_rx ? tid_rx->ssn : 0); 284 285 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); 286 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 287 tid_tx ? tid_tx->dialog_token : 0); 288 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", 289 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 290 p += scnprintf(p, sizeof(buf) + buf - p, "\n"); 291 } 292 rcu_read_unlock(); 293 294 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 295 } 296 297 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 298 size_t count, loff_t *ppos) 299 { 300 char _buf[25] = {}, *buf = _buf; 301 struct sta_info *sta = file->private_data; 302 bool start, tx; 303 unsigned long tid; 304 char *pos; 305 int ret, timeout = 5000; 306 307 if (count > sizeof(_buf)) 308 return -EINVAL; 309 310 if (copy_from_user(buf, userbuf, count)) 311 return -EFAULT; 312 313 buf[sizeof(_buf) - 1] = '\0'; 314 pos = buf; 315 buf = strsep(&pos, " "); 316 if (!buf) 317 return -EINVAL; 318 319 if (!strcmp(buf, "tx")) 320 tx = true; 321 else if (!strcmp(buf, "rx")) 322 tx = false; 323 else 324 return -EINVAL; 325 326 buf = strsep(&pos, " "); 327 if (!buf) 328 return -EINVAL; 329 if (!strcmp(buf, "start")) { 330 start = true; 331 if (!tx) 332 return -EINVAL; 333 } else if (!strcmp(buf, "stop")) { 334 start = false; 335 } else { 336 return -EINVAL; 337 } 338 339 buf = strsep(&pos, " "); 340 if (!buf) 341 return -EINVAL; 342 if (sscanf(buf, "timeout=%d", &timeout) == 1) { 343 buf = strsep(&pos, " "); 344 if (!buf || !tx || !start) 345 return -EINVAL; 346 } 347 348 ret = kstrtoul(buf, 0, &tid); 349 if (ret || tid >= IEEE80211_NUM_TIDS) 350 return -EINVAL; 351 352 if (tx) { 353 if (start) 354 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 355 timeout); 356 else 357 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 358 } else { 359 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 360 3, true); 361 ret = 0; 362 } 363 364 return ret ?: count; 365 } 366 STA_OPS_RW(agg_status); 367 368 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 369 size_t count, loff_t *ppos) 370 { 371 #define PRINT_HT_CAP(_cond, _str) \ 372 do { \ 373 if (_cond) \ 374 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ 375 } while (0) 376 char buf[512], *p = buf; 377 int i; 378 struct sta_info *sta = file->private_data; 379 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; 380 381 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", 382 htc->ht_supported ? "" : "not "); 383 if (htc->ht_supported) { 384 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); 385 386 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 387 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 388 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 389 390 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 391 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 392 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 393 394 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 395 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 396 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 397 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 398 399 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 400 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 401 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 402 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 403 404 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 405 406 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 407 "3839 bytes"); 408 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 409 "7935 bytes"); 410 411 /* 412 * For beacons and probe response this would mean the BSS 413 * does or does not allow the usage of DSSS/CCK HT40. 414 * Otherwise it means the STA does or does not use 415 * DSSS/CCK HT40. 416 */ 417 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 418 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 419 420 /* BIT(13) is reserved */ 421 422 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 423 424 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 425 426 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", 427 htc->ampdu_factor, htc->ampdu_density); 428 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); 429 430 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 431 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", 432 htc->mcs.rx_mask[i]); 433 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 434 435 /* If not set this is meaningless */ 436 if (le16_to_cpu(htc->mcs.rx_highest)) { 437 p += scnprintf(p, sizeof(buf)+buf-p, 438 "MCS rx highest: %d Mbps\n", 439 le16_to_cpu(htc->mcs.rx_highest)); 440 } 441 442 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", 443 htc->mcs.tx_params); 444 } 445 446 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 447 } 448 STA_OPS(ht_capa); 449 450 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, 451 size_t count, loff_t *ppos) 452 { 453 char buf[512], *p = buf; 454 struct sta_info *sta = file->private_data; 455 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; 456 457 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", 458 vhtc->vht_supported ? "" : "not "); 459 if (vhtc->vht_supported) { 460 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n", 461 vhtc->cap); 462 #define PFLAG(a, b) \ 463 do { \ 464 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \ 465 p += scnprintf(p, sizeof(buf) + buf - p, \ 466 "\t\t%s\n", b); \ 467 } while (0) 468 469 switch (vhtc->cap & 0x3) { 470 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 471 p += scnprintf(p, sizeof(buf) + buf - p, 472 "\t\tMAX-MPDU-3895\n"); 473 break; 474 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 475 p += scnprintf(p, sizeof(buf) + buf - p, 476 "\t\tMAX-MPDU-7991\n"); 477 break; 478 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 479 p += scnprintf(p, sizeof(buf) + buf - p, 480 "\t\tMAX-MPDU-11454\n"); 481 break; 482 default: 483 p += scnprintf(p, sizeof(buf) + buf - p, 484 "\t\tMAX-MPDU-UNKNOWN\n"); 485 } 486 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 487 case 0: 488 p += scnprintf(p, sizeof(buf) + buf - p, 489 "\t\t80Mhz\n"); 490 break; 491 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 492 p += scnprintf(p, sizeof(buf) + buf - p, 493 "\t\t160Mhz\n"); 494 break; 495 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 496 p += scnprintf(p, sizeof(buf) + buf - p, 497 "\t\t80+80Mhz\n"); 498 break; 499 default: 500 p += scnprintf(p, sizeof(buf) + buf - p, 501 "\t\tUNKNOWN-MHZ: 0x%x\n", 502 (vhtc->cap >> 2) & 0x3); 503 } 504 PFLAG(RXLDPC, "RXLDPC"); 505 PFLAG(SHORT_GI_80, "SHORT-GI-80"); 506 PFLAG(SHORT_GI_160, "SHORT-GI-160"); 507 PFLAG(TXSTBC, "TXSTBC"); 508 p += scnprintf(p, sizeof(buf) + buf - p, 509 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7); 510 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE"); 511 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE"); 512 p += scnprintf(p, sizeof(buf) + buf - p, 513 "\t\tBEAMFORMEE-STS: 0x%x\n", 514 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >> 515 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 516 p += scnprintf(p, sizeof(buf) + buf - p, 517 "\t\tSOUNDING-DIMENSIONS: 0x%x\n", 518 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK) 519 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 520 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE"); 521 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE"); 522 PFLAG(VHT_TXOP_PS, "TXOP-PS"); 523 PFLAG(HTC_VHT, "HTC-VHT"); 524 p += scnprintf(p, sizeof(buf) + buf - p, 525 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n", 526 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >> 527 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT); 528 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB, 529 "LINK-ADAPTATION-VHT-UNSOL-MFB"); 530 p += scnprintf(p, sizeof(buf) + buf - p, 531 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n", 532 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26); 533 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN"); 534 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN"); 535 536 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", 537 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 538 if (vhtc->vht_mcs.rx_highest) 539 p += scnprintf(p, sizeof(buf)+buf-p, 540 "MCS RX highest: %d Mbps\n", 541 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 542 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", 543 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 544 if (vhtc->vht_mcs.tx_highest) 545 p += scnprintf(p, sizeof(buf)+buf-p, 546 "MCS TX highest: %d Mbps\n", 547 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 548 #undef PFLAG 549 } 550 551 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 552 } 553 STA_OPS(vht_capa); 554 555 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf, 556 size_t count, loff_t *ppos) 557 { 558 char *buf, *p; 559 size_t buf_sz = PAGE_SIZE; 560 struct sta_info *sta = file->private_data; 561 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap; 562 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; 563 u8 ppe_size; 564 u8 *cap; 565 int i; 566 ssize_t ret; 567 568 buf = kmalloc(buf_sz, GFP_KERNEL); 569 if (!buf) 570 return -ENOMEM; 571 p = buf; 572 573 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", 574 hec->has_he ? "" : "not "); 575 if (!hec->has_he) 576 goto out; 577 578 cap = hec->he_cap_elem.mac_cap_info; 579 p += scnprintf(p, buf_sz + buf - p, 580 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 581 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]); 582 583 #define PRINT(fmt, ...) \ 584 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 585 ##__VA_ARGS__) 586 587 #define PFLAG(t, n, a, b) \ 588 do { \ 589 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ 590 PRINT("%s", b); \ 591 } while (0) 592 593 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ 594 do { \ 595 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ 596 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ 597 PRINT(fmt, (s << idx) + (m * idx)); \ 598 } while (0) 599 600 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ 601 do { \ 602 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ 603 PRINT("%s", b); \ 604 break; \ 605 } \ 606 PFLAG_RANGE(t, i, n, s, m, off, fmt); \ 607 } while (0) 608 609 PFLAG(MAC, 0, HTC_HE, "HTC-HE"); 610 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); 611 PFLAG(MAC, 0, TWT_RES, "TWT-RES"); 612 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, 613 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); 614 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, 615 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); 616 617 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, 618 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); 619 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, 620 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); 621 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1, 622 "MULTI-TID-AGG-RX-QOS-%d"); 623 624 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { 625 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { 626 case 0: 627 PRINT("LINK-ADAPTATION-NO-FEEDBACK"); 628 break; 629 case 1: 630 PRINT("LINK-ADAPTATION-RESERVED"); 631 break; 632 case 2: 633 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); 634 break; 635 case 3: 636 PRINT("LINK-ADAPTATION-BOTH"); 637 break; 638 } 639 } 640 641 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); 642 PFLAG(MAC, 2, TRS, "TRS"); 643 PFLAG(MAC, 2, BSR, "BSR"); 644 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); 645 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); 646 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); 647 PFLAG(MAC, 2, ACK_EN, "ACK-EN"); 648 649 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); 650 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); 651 652 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) { 653 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT: 654 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT"); 655 break; 656 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1: 657 PRINT("MAX-AMPDU-LEN-EXP-VHT-1"); 658 break; 659 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2: 660 PRINT("MAX-AMPDU-LEN-EXP-VHT-2"); 661 break; 662 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED: 663 PRINT("MAX-AMPDU-LEN-EXP-RESERVED"); 664 break; 665 } 666 667 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG"); 668 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); 669 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); 670 671 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); 672 PFLAG(MAC, 4, QTP, "QTP"); 673 PFLAG(MAC, 4, BQR, "BQR"); 674 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP"); 675 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); 676 PFLAG(MAC, 4, OPS, "OPS"); 677 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU"); 678 679 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7); 680 681 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION, 682 "SUBCHAN-SELECVITE-TRANSMISSION"); 683 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU"); 684 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX"); 685 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS"); 686 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING"); 687 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX"); 688 689 cap = hec->he_cap_elem.phy_cap_info; 690 p += scnprintf(p, buf_sz + buf - p, 691 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 692 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], 693 cap[7], cap[8], cap[9], cap[10]); 694 695 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, 696 "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); 697 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, 698 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); 699 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, 700 "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); 701 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, 702 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); 703 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, 704 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); 705 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, 706 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); 707 708 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { 709 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: 710 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); 711 break; 712 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: 713 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); 714 break; 715 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: 716 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); 717 break; 718 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: 719 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); 720 break; 721 } 722 723 PFLAG(PHY, 1, DEVICE_CLASS_A, 724 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); 725 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, 726 "LDPC-CODING-IN-PAYLOAD"); 727 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, 728 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); 729 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); 730 731 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); 732 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); 733 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); 734 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); 735 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); 736 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); 737 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); 738 739 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { 740 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: 741 PRINT("DCM-MAX-CONST-TX-NO-DCM"); 742 break; 743 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: 744 PRINT("DCM-MAX-CONST-TX-BPSK"); 745 break; 746 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: 747 PRINT("DCM-MAX-CONST-TX-QPSK"); 748 break; 749 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: 750 PRINT("DCM-MAX-CONST-TX-16-QAM"); 751 break; 752 } 753 754 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); 755 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); 756 757 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { 758 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: 759 PRINT("DCM-MAX-CONST-RX-NO-DCM"); 760 break; 761 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: 762 PRINT("DCM-MAX-CONST-RX-BPSK"); 763 break; 764 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: 765 PRINT("DCM-MAX-CONST-RX-QPSK"); 766 break; 767 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: 768 PRINT("DCM-MAX-CONST-RX-16-QAM"); 769 break; 770 } 771 772 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); 773 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); 774 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA, 775 "RX-HE-MU-PPDU-FROM-NON-AP-STA"); 776 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); 777 778 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 779 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); 780 781 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, 782 "BEAMFORMEE-MAX-STS-UNDER-%d"); 783 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, 784 "BEAMFORMEE-MAX-STS-ABOVE-%d"); 785 786 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, 787 "NUM-SND-DIM-UNDER-80MHZ-%d"); 788 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, 789 "NUM-SND-DIM-ABOVE-80MHZ-%d"); 790 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); 791 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); 792 793 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); 794 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); 795 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB"); 796 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB"); 797 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); 798 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); 799 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, 800 "PARTIAL-BANDWIDTH-DL-MUMIMO"); 801 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); 802 803 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR"); 804 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR"); 805 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, 806 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); 807 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); 808 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); 809 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); 810 811 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, 812 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); 813 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, 814 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); 815 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); 816 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); 817 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, 818 "HE-ER-SU-1XLTF-AND-08-US-GI"); 819 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF, 820 "MIDAMBLE-RX-TX-2X-AND-1XLTF"); 821 822 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) { 823 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242: 824 PRINT("DCM-MAX-RU-242"); 825 break; 826 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484: 827 PRINT("DCM-MAX-RU-484"); 828 break; 829 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996: 830 PRINT("DCM-MAX-RU-996"); 831 break; 832 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996: 833 PRINT("DCM-MAX-RU-2x996"); 834 break; 835 } 836 837 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM, 838 "LONGER-THAN-16-SIGB-OFDM-SYM"); 839 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK, 840 "NON-TRIGGERED-CQI-FEEDBACK"); 841 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU, 842 "TX-1024-QAM-LESS-THAN-242-TONE-RU"); 843 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU, 844 "RX-1024-QAM-LESS-THAN-242-TONE-RU"); 845 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB, 846 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB"); 847 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB, 848 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB"); 849 850 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 851 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 852 PRINT("NOMINAL-PACKET-PADDING-0US"); 853 break; 854 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 855 PRINT("NOMINAL-PACKET-PADDING-8US"); 856 break; 857 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 858 PRINT("NOMINAL-PACKET-PADDING-16US"); 859 break; 860 } 861 862 #undef PFLAG_RANGE_DEFAULT 863 #undef PFLAG_RANGE 864 #undef PFLAG 865 866 #define PRINT_NSS_SUPP(f, n) \ 867 do { \ 868 int _i; \ 869 u16 v = le16_to_cpu(nss->f); \ 870 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ 871 for (_i = 0; _i < 8; _i += 2) { \ 872 switch ((v >> _i) & 0x3) { \ 873 case 0: \ 874 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \ 875 break; \ 876 case 1: \ 877 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \ 878 break; \ 879 case 2: \ 880 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \ 881 break; \ 882 case 3: \ 883 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \ 884 break; \ 885 } \ 886 } \ 887 } while (0) 888 889 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); 890 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); 891 892 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { 893 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); 894 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); 895 } 896 897 if (cap[0] & 898 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { 899 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); 900 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); 901 } 902 903 #undef PRINT_NSS_SUPP 904 #undef PRINT 905 906 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) 907 goto out; 908 909 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", 910 hec->ppe_thres[0]); 911 912 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); 913 for (i = 1; i < ppe_size; i++) { 914 p += scnprintf(p, buf_sz + buf - p, " %#.2x", 915 hec->ppe_thres[i]); 916 } 917 p += scnprintf(p, buf_sz + buf - p, "\n"); 918 919 out: 920 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 921 kfree(buf); 922 return ret; 923 } 924 STA_OPS(he_capa); 925 926 #define DEBUGFS_ADD(name) \ 927 debugfs_create_file(#name, 0400, \ 928 sta->debugfs_dir, sta, &sta_ ##name## _ops); 929 930 #define DEBUGFS_ADD_COUNTER(name, field) \ 931 if (sizeof(sta->field) == sizeof(u32)) \ 932 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \ 933 (u32 *) &sta->field); \ 934 else \ 935 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \ 936 (u64 *) &sta->field); 937 938 void ieee80211_sta_debugfs_add(struct sta_info *sta) 939 { 940 struct ieee80211_local *local = sta->local; 941 struct ieee80211_sub_if_data *sdata = sta->sdata; 942 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 943 u8 mac[3*ETH_ALEN]; 944 945 if (!stations_dir) 946 return; 947 948 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 949 950 /* 951 * This might fail due to a race condition: 952 * When mac80211 unlinks a station, the debugfs entries 953 * remain, but it is already possible to link a new 954 * station with the same address which triggers adding 955 * it to debugfs; therefore, if the old station isn't 956 * destroyed quickly enough the old station's debugfs 957 * dir might still be around. 958 */ 959 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); 960 if (!sta->debugfs_dir) 961 return; 962 963 DEBUGFS_ADD(flags); 964 DEBUGFS_ADD(aid); 965 DEBUGFS_ADD(num_ps_buf_frames); 966 DEBUGFS_ADD(last_seq_ctrl); 967 DEBUGFS_ADD(agg_status); 968 DEBUGFS_ADD(ht_capa); 969 DEBUGFS_ADD(vht_capa); 970 DEBUGFS_ADD(he_capa); 971 972 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); 973 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); 974 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered); 975 976 if (local->ops->wake_tx_queue) 977 DEBUGFS_ADD(aqm); 978 979 if (wiphy_ext_feature_isset(local->hw.wiphy, 980 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) 981 DEBUGFS_ADD(airtime); 982 983 if (sizeof(sta->driver_buffered_tids) == sizeof(u32)) 984 debugfs_create_x32("driver_buffered_tids", 0400, 985 sta->debugfs_dir, 986 (u32 *)&sta->driver_buffered_tids); 987 else 988 debugfs_create_x64("driver_buffered_tids", 0400, 989 sta->debugfs_dir, 990 (u64 *)&sta->driver_buffered_tids); 991 992 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); 993 } 994 995 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 996 { 997 debugfs_remove_recursive(sta->debugfs_dir); 998 sta->debugfs_dir = NULL; 999 } 1000