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 = 400; 201 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf; 202 u64 rx_airtime = 0, tx_airtime = 0; 203 s64 deficit[IEEE80211_NUM_ACS]; 204 u32 q_depth[IEEE80211_NUM_ACS]; 205 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS]; 206 ssize_t rv; 207 int ac; 208 209 if (!buf) 210 return -ENOMEM; 211 212 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 213 spin_lock_bh(&local->active_txq_lock[ac]); 214 rx_airtime += sta->airtime[ac].rx_airtime; 215 tx_airtime += sta->airtime[ac].tx_airtime; 216 deficit[ac] = sta->airtime[ac].deficit; 217 q_limit_l[ac] = sta->airtime[ac].aql_limit_low; 218 q_limit_h[ac] = sta->airtime[ac].aql_limit_high; 219 spin_unlock_bh(&local->active_txq_lock[ac]); 220 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending); 221 } 222 223 p += scnprintf(p, bufsz + buf - p, 224 "RX: %llu us\nTX: %llu us\nWeight: %u\n" 225 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n" 226 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n" 227 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n", 228 rx_airtime, tx_airtime, sta->airtime_weight, 229 deficit[0], deficit[1], deficit[2], deficit[3], 230 q_depth[0], q_depth[1], q_depth[2], q_depth[3], 231 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1], 232 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]), 233 234 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 235 kfree(buf); 236 return rv; 237 } 238 239 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf, 240 size_t count, loff_t *ppos) 241 { 242 struct sta_info *sta = file->private_data; 243 struct ieee80211_local *local = sta->sdata->local; 244 u32 ac, q_limit_l, q_limit_h; 245 char _buf[100] = {}, *buf = _buf; 246 247 if (count > sizeof(_buf)) 248 return -EINVAL; 249 250 if (copy_from_user(buf, userbuf, count)) 251 return -EFAULT; 252 253 buf[sizeof(_buf) - 1] = '\0'; 254 if (sscanf(buf, "queue limit %u %u %u", &ac, &q_limit_l, &q_limit_h) 255 != 3) 256 return -EINVAL; 257 258 if (ac >= IEEE80211_NUM_ACS) 259 return -EINVAL; 260 261 sta->airtime[ac].aql_limit_low = q_limit_l; 262 sta->airtime[ac].aql_limit_high = q_limit_h; 263 264 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 265 spin_lock_bh(&local->active_txq_lock[ac]); 266 sta->airtime[ac].rx_airtime = 0; 267 sta->airtime[ac].tx_airtime = 0; 268 sta->airtime[ac].deficit = sta->airtime_weight; 269 spin_unlock_bh(&local->active_txq_lock[ac]); 270 } 271 272 return count; 273 } 274 STA_OPS_RW(airtime); 275 276 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, 277 size_t count, loff_t *ppos) 278 { 279 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf; 280 int i; 281 struct sta_info *sta = file->private_data; 282 struct tid_ampdu_rx *tid_rx; 283 struct tid_ampdu_tx *tid_tx; 284 285 rcu_read_lock(); 286 287 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", 288 sta->ampdu_mlme.dialog_token_allocator + 1); 289 p += scnprintf(p, sizeof(buf) + buf - p, 290 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n"); 291 292 for (i = 0; i < IEEE80211_NUM_TIDS; i++) { 293 bool tid_rx_valid; 294 295 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]); 296 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]); 297 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid); 298 299 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i); 300 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", 301 tid_rx_valid); 302 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 303 tid_rx_valid ? 304 sta->ampdu_mlme.tid_rx_token[i] : 0); 305 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x", 306 tid_rx ? tid_rx->ssn : 0); 307 308 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx); 309 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x", 310 tid_tx ? tid_tx->dialog_token : 0); 311 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d", 312 tid_tx ? skb_queue_len(&tid_tx->pending) : 0); 313 p += scnprintf(p, sizeof(buf) + buf - p, "\n"); 314 } 315 rcu_read_unlock(); 316 317 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 318 } 319 320 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf, 321 size_t count, loff_t *ppos) 322 { 323 char _buf[25] = {}, *buf = _buf; 324 struct sta_info *sta = file->private_data; 325 bool start, tx; 326 unsigned long tid; 327 char *pos; 328 int ret, timeout = 5000; 329 330 if (count > sizeof(_buf)) 331 return -EINVAL; 332 333 if (copy_from_user(buf, userbuf, count)) 334 return -EFAULT; 335 336 buf[sizeof(_buf) - 1] = '\0'; 337 pos = buf; 338 buf = strsep(&pos, " "); 339 if (!buf) 340 return -EINVAL; 341 342 if (!strcmp(buf, "tx")) 343 tx = true; 344 else if (!strcmp(buf, "rx")) 345 tx = false; 346 else 347 return -EINVAL; 348 349 buf = strsep(&pos, " "); 350 if (!buf) 351 return -EINVAL; 352 if (!strcmp(buf, "start")) { 353 start = true; 354 if (!tx) 355 return -EINVAL; 356 } else if (!strcmp(buf, "stop")) { 357 start = false; 358 } else { 359 return -EINVAL; 360 } 361 362 buf = strsep(&pos, " "); 363 if (!buf) 364 return -EINVAL; 365 if (sscanf(buf, "timeout=%d", &timeout) == 1) { 366 buf = strsep(&pos, " "); 367 if (!buf || !tx || !start) 368 return -EINVAL; 369 } 370 371 ret = kstrtoul(buf, 0, &tid); 372 if (ret || tid >= IEEE80211_NUM_TIDS) 373 return -EINVAL; 374 375 if (tx) { 376 if (start) 377 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 378 timeout); 379 else 380 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid); 381 } else { 382 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 383 3, true); 384 ret = 0; 385 } 386 387 return ret ?: count; 388 } 389 STA_OPS_RW(agg_status); 390 391 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 392 size_t count, loff_t *ppos) 393 { 394 #define PRINT_HT_CAP(_cond, _str) \ 395 do { \ 396 if (_cond) \ 397 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \ 398 } while (0) 399 char buf[512], *p = buf; 400 int i; 401 struct sta_info *sta = file->private_data; 402 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; 403 404 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", 405 htc->ht_supported ? "" : "not "); 406 if (htc->ht_supported) { 407 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap); 408 409 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC"); 410 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40"); 411 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20"); 412 413 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save"); 414 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); 415 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled"); 416 417 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield"); 418 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI"); 419 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI"); 420 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC"); 421 422 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC"); 423 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); 424 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); 425 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); 426 427 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack"); 428 429 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: " 430 "3839 bytes"); 431 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: " 432 "7935 bytes"); 433 434 /* 435 * For beacons and probe response this would mean the BSS 436 * does or does not allow the usage of DSSS/CCK HT40. 437 * Otherwise it means the STA does or does not use 438 * DSSS/CCK HT40. 439 */ 440 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40"); 441 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40"); 442 443 /* BIT(13) is reserved */ 444 445 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant"); 446 447 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection"); 448 449 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n", 450 htc->ampdu_factor, htc->ampdu_density); 451 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:"); 452 453 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) 454 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x", 455 htc->mcs.rx_mask[i]); 456 p += scnprintf(p, sizeof(buf)+buf-p, "\n"); 457 458 /* If not set this is meaningless */ 459 if (le16_to_cpu(htc->mcs.rx_highest)) { 460 p += scnprintf(p, sizeof(buf)+buf-p, 461 "MCS rx highest: %d Mbps\n", 462 le16_to_cpu(htc->mcs.rx_highest)); 463 } 464 465 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n", 466 htc->mcs.tx_params); 467 } 468 469 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 470 } 471 STA_OPS(ht_capa); 472 473 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, 474 size_t count, loff_t *ppos) 475 { 476 char buf[512], *p = buf; 477 struct sta_info *sta = file->private_data; 478 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap; 479 480 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n", 481 vhtc->vht_supported ? "" : "not "); 482 if (vhtc->vht_supported) { 483 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n", 484 vhtc->cap); 485 #define PFLAG(a, b) \ 486 do { \ 487 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \ 488 p += scnprintf(p, sizeof(buf) + buf - p, \ 489 "\t\t%s\n", b); \ 490 } while (0) 491 492 switch (vhtc->cap & 0x3) { 493 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 494 p += scnprintf(p, sizeof(buf) + buf - p, 495 "\t\tMAX-MPDU-3895\n"); 496 break; 497 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 498 p += scnprintf(p, sizeof(buf) + buf - p, 499 "\t\tMAX-MPDU-7991\n"); 500 break; 501 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 502 p += scnprintf(p, sizeof(buf) + buf - p, 503 "\t\tMAX-MPDU-11454\n"); 504 break; 505 default: 506 p += scnprintf(p, sizeof(buf) + buf - p, 507 "\t\tMAX-MPDU-UNKNOWN\n"); 508 } 509 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 510 case 0: 511 p += scnprintf(p, sizeof(buf) + buf - p, 512 "\t\t80Mhz\n"); 513 break; 514 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 515 p += scnprintf(p, sizeof(buf) + buf - p, 516 "\t\t160Mhz\n"); 517 break; 518 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 519 p += scnprintf(p, sizeof(buf) + buf - p, 520 "\t\t80+80Mhz\n"); 521 break; 522 default: 523 p += scnprintf(p, sizeof(buf) + buf - p, 524 "\t\tUNKNOWN-MHZ: 0x%x\n", 525 (vhtc->cap >> 2) & 0x3); 526 } 527 PFLAG(RXLDPC, "RXLDPC"); 528 PFLAG(SHORT_GI_80, "SHORT-GI-80"); 529 PFLAG(SHORT_GI_160, "SHORT-GI-160"); 530 PFLAG(TXSTBC, "TXSTBC"); 531 p += scnprintf(p, sizeof(buf) + buf - p, 532 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7); 533 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE"); 534 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE"); 535 p += scnprintf(p, sizeof(buf) + buf - p, 536 "\t\tBEAMFORMEE-STS: 0x%x\n", 537 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >> 538 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 539 p += scnprintf(p, sizeof(buf) + buf - p, 540 "\t\tSOUNDING-DIMENSIONS: 0x%x\n", 541 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK) 542 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 543 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE"); 544 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE"); 545 PFLAG(VHT_TXOP_PS, "TXOP-PS"); 546 PFLAG(HTC_VHT, "HTC-VHT"); 547 p += scnprintf(p, sizeof(buf) + buf - p, 548 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n", 549 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >> 550 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT); 551 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB, 552 "LINK-ADAPTATION-VHT-UNSOL-MFB"); 553 p += scnprintf(p, sizeof(buf) + buf - p, 554 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n", 555 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26); 556 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN"); 557 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN"); 558 559 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n", 560 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map)); 561 if (vhtc->vht_mcs.rx_highest) 562 p += scnprintf(p, sizeof(buf)+buf-p, 563 "MCS RX highest: %d Mbps\n", 564 le16_to_cpu(vhtc->vht_mcs.rx_highest)); 565 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n", 566 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map)); 567 if (vhtc->vht_mcs.tx_highest) 568 p += scnprintf(p, sizeof(buf)+buf-p, 569 "MCS TX highest: %d Mbps\n", 570 le16_to_cpu(vhtc->vht_mcs.tx_highest)); 571 #undef PFLAG 572 } 573 574 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 575 } 576 STA_OPS(vht_capa); 577 578 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf, 579 size_t count, loff_t *ppos) 580 { 581 char *buf, *p; 582 size_t buf_sz = PAGE_SIZE; 583 struct sta_info *sta = file->private_data; 584 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap; 585 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; 586 u8 ppe_size; 587 u8 *cap; 588 int i; 589 ssize_t ret; 590 591 buf = kmalloc(buf_sz, GFP_KERNEL); 592 if (!buf) 593 return -ENOMEM; 594 p = buf; 595 596 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", 597 hec->has_he ? "" : "not "); 598 if (!hec->has_he) 599 goto out; 600 601 cap = hec->he_cap_elem.mac_cap_info; 602 p += scnprintf(p, buf_sz + buf - p, 603 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 604 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]); 605 606 #define PRINT(fmt, ...) \ 607 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ 608 ##__VA_ARGS__) 609 610 #define PFLAG(t, n, a, b) \ 611 do { \ 612 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ 613 PRINT("%s", b); \ 614 } while (0) 615 616 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ 617 do { \ 618 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ 619 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ 620 PRINT(fmt, (s << idx) + (m * idx)); \ 621 } while (0) 622 623 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ 624 do { \ 625 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ 626 PRINT("%s", b); \ 627 break; \ 628 } \ 629 PFLAG_RANGE(t, i, n, s, m, off, fmt); \ 630 } while (0) 631 632 PFLAG(MAC, 0, HTC_HE, "HTC-HE"); 633 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); 634 PFLAG(MAC, 0, TWT_RES, "TWT-RES"); 635 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, 636 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); 637 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, 638 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); 639 640 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, 641 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); 642 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, 643 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); 644 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1, 645 "MULTI-TID-AGG-RX-QOS-%d"); 646 647 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { 648 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { 649 case 0: 650 PRINT("LINK-ADAPTATION-NO-FEEDBACK"); 651 break; 652 case 1: 653 PRINT("LINK-ADAPTATION-RESERVED"); 654 break; 655 case 2: 656 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); 657 break; 658 case 3: 659 PRINT("LINK-ADAPTATION-BOTH"); 660 break; 661 } 662 } 663 664 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); 665 PFLAG(MAC, 2, TRS, "TRS"); 666 PFLAG(MAC, 2, BSR, "BSR"); 667 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); 668 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); 669 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); 670 PFLAG(MAC, 2, ACK_EN, "ACK-EN"); 671 672 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); 673 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); 674 675 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) { 676 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT: 677 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT"); 678 break; 679 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1: 680 PRINT("MAX-AMPDU-LEN-EXP-VHT-1"); 681 break; 682 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2: 683 PRINT("MAX-AMPDU-LEN-EXP-VHT-2"); 684 break; 685 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED: 686 PRINT("MAX-AMPDU-LEN-EXP-RESERVED"); 687 break; 688 } 689 690 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG"); 691 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); 692 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); 693 694 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); 695 PFLAG(MAC, 4, QTP, "QTP"); 696 PFLAG(MAC, 4, BQR, "BQR"); 697 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP"); 698 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); 699 PFLAG(MAC, 4, OPS, "OPS"); 700 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU"); 701 702 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7); 703 704 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION, 705 "SUBCHAN-SELECVITE-TRANSMISSION"); 706 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU"); 707 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX"); 708 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS"); 709 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING"); 710 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX"); 711 712 cap = hec->he_cap_elem.phy_cap_info; 713 p += scnprintf(p, buf_sz + buf - p, 714 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", 715 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], 716 cap[7], cap[8], cap[9], cap[10]); 717 718 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, 719 "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); 720 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, 721 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); 722 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, 723 "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); 724 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, 725 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); 726 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, 727 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); 728 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, 729 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); 730 731 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { 732 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: 733 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); 734 break; 735 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: 736 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); 737 break; 738 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: 739 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); 740 break; 741 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: 742 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); 743 break; 744 } 745 746 PFLAG(PHY, 1, DEVICE_CLASS_A, 747 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); 748 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, 749 "LDPC-CODING-IN-PAYLOAD"); 750 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, 751 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); 752 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); 753 754 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); 755 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); 756 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); 757 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); 758 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); 759 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); 760 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); 761 762 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { 763 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: 764 PRINT("DCM-MAX-CONST-TX-NO-DCM"); 765 break; 766 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: 767 PRINT("DCM-MAX-CONST-TX-BPSK"); 768 break; 769 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: 770 PRINT("DCM-MAX-CONST-TX-QPSK"); 771 break; 772 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: 773 PRINT("DCM-MAX-CONST-TX-16-QAM"); 774 break; 775 } 776 777 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); 778 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); 779 780 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { 781 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: 782 PRINT("DCM-MAX-CONST-RX-NO-DCM"); 783 break; 784 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: 785 PRINT("DCM-MAX-CONST-RX-BPSK"); 786 break; 787 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: 788 PRINT("DCM-MAX-CONST-RX-QPSK"); 789 break; 790 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: 791 PRINT("DCM-MAX-CONST-RX-16-QAM"); 792 break; 793 } 794 795 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); 796 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); 797 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA, 798 "RX-HE-MU-PPDU-FROM-NON-AP-STA"); 799 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); 800 801 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); 802 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); 803 804 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, 805 "BEAMFORMEE-MAX-STS-UNDER-%d"); 806 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, 807 "BEAMFORMEE-MAX-STS-ABOVE-%d"); 808 809 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, 810 "NUM-SND-DIM-UNDER-80MHZ-%d"); 811 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, 812 "NUM-SND-DIM-ABOVE-80MHZ-%d"); 813 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); 814 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); 815 816 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); 817 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); 818 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB"); 819 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB"); 820 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); 821 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); 822 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, 823 "PARTIAL-BANDWIDTH-DL-MUMIMO"); 824 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); 825 826 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR"); 827 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR"); 828 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, 829 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); 830 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); 831 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); 832 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); 833 834 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, 835 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); 836 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, 837 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); 838 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); 839 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); 840 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, 841 "HE-ER-SU-1XLTF-AND-08-US-GI"); 842 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF, 843 "MIDAMBLE-RX-TX-2X-AND-1XLTF"); 844 845 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) { 846 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242: 847 PRINT("DCM-MAX-RU-242"); 848 break; 849 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484: 850 PRINT("DCM-MAX-RU-484"); 851 break; 852 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996: 853 PRINT("DCM-MAX-RU-996"); 854 break; 855 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996: 856 PRINT("DCM-MAX-RU-2x996"); 857 break; 858 } 859 860 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM, 861 "LONGER-THAN-16-SIGB-OFDM-SYM"); 862 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK, 863 "NON-TRIGGERED-CQI-FEEDBACK"); 864 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU, 865 "TX-1024-QAM-LESS-THAN-242-TONE-RU"); 866 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU, 867 "RX-1024-QAM-LESS-THAN-242-TONE-RU"); 868 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB, 869 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB"); 870 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB, 871 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB"); 872 873 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 874 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 875 PRINT("NOMINAL-PACKET-PADDING-0US"); 876 break; 877 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 878 PRINT("NOMINAL-PACKET-PADDING-8US"); 879 break; 880 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 881 PRINT("NOMINAL-PACKET-PADDING-16US"); 882 break; 883 } 884 885 #undef PFLAG_RANGE_DEFAULT 886 #undef PFLAG_RANGE 887 #undef PFLAG 888 889 #define PRINT_NSS_SUPP(f, n) \ 890 do { \ 891 int _i; \ 892 u16 v = le16_to_cpu(nss->f); \ 893 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ 894 for (_i = 0; _i < 8; _i += 2) { \ 895 switch ((v >> _i) & 0x3) { \ 896 case 0: \ 897 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \ 898 break; \ 899 case 1: \ 900 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \ 901 break; \ 902 case 2: \ 903 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \ 904 break; \ 905 case 3: \ 906 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \ 907 break; \ 908 } \ 909 } \ 910 } while (0) 911 912 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); 913 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); 914 915 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { 916 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); 917 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); 918 } 919 920 if (cap[0] & 921 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { 922 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); 923 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); 924 } 925 926 #undef PRINT_NSS_SUPP 927 #undef PRINT 928 929 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) 930 goto out; 931 932 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", 933 hec->ppe_thres[0]); 934 935 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); 936 for (i = 1; i < ppe_size; i++) { 937 p += scnprintf(p, buf_sz + buf - p, " %#.2x", 938 hec->ppe_thres[i]); 939 } 940 p += scnprintf(p, buf_sz + buf - p, "\n"); 941 942 out: 943 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); 944 kfree(buf); 945 return ret; 946 } 947 STA_OPS(he_capa); 948 949 #define DEBUGFS_ADD(name) \ 950 debugfs_create_file(#name, 0400, \ 951 sta->debugfs_dir, sta, &sta_ ##name## _ops); 952 953 #define DEBUGFS_ADD_COUNTER(name, field) \ 954 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field); 955 956 void ieee80211_sta_debugfs_add(struct sta_info *sta) 957 { 958 struct ieee80211_local *local = sta->local; 959 struct ieee80211_sub_if_data *sdata = sta->sdata; 960 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations; 961 u8 mac[3*ETH_ALEN]; 962 963 if (!stations_dir) 964 return; 965 966 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); 967 968 /* 969 * This might fail due to a race condition: 970 * When mac80211 unlinks a station, the debugfs entries 971 * remain, but it is already possible to link a new 972 * station with the same address which triggers adding 973 * it to debugfs; therefore, if the old station isn't 974 * destroyed quickly enough the old station's debugfs 975 * dir might still be around. 976 */ 977 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir); 978 979 DEBUGFS_ADD(flags); 980 DEBUGFS_ADD(aid); 981 DEBUGFS_ADD(num_ps_buf_frames); 982 DEBUGFS_ADD(last_seq_ctrl); 983 DEBUGFS_ADD(agg_status); 984 DEBUGFS_ADD(ht_capa); 985 DEBUGFS_ADD(vht_capa); 986 DEBUGFS_ADD(he_capa); 987 988 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); 989 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); 990 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered); 991 992 if (local->ops->wake_tx_queue) 993 DEBUGFS_ADD(aqm); 994 995 if (wiphy_ext_feature_isset(local->hw.wiphy, 996 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) 997 DEBUGFS_ADD(airtime); 998 999 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir, 1000 &sta->driver_buffered_tids); 1001 1002 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir); 1003 } 1004 1005 void ieee80211_sta_debugfs_remove(struct sta_info *sta) 1006 { 1007 debugfs_remove_recursive(sta->debugfs_dir); 1008 sta->debugfs_dir = NULL; 1009 } 1010