debugfs_sta.c

   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)				\
  22static 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)							\
  33static 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)						\
  39static 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
  49STA_FILE(aid, sta.aid, D);
  50
  51static 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
  84static 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}
 102STA_OPS(flags);
 103
 104static 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}
 118STA_OPS(num_ps_buf_frames);
 119
 120static 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}
 132STA_OPS(last_seq_ctrl);
 133
 134#define AQM_TXQ_ENTRY_LEN 130
 135
 136static 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
 152	p += scnprintf(p,
 153		       bufsz + buf - p,
 154		       "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
 155
 156	for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
 157		if (!sta->sta.txq[i])
 158			continue;
 159		txqi = to_txq_info(sta->sta.txq[i]);
 160		p += scnprintf(p, bufsz + buf - p,
 161			       "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s%s)\n",
 162			       txqi->txq.tid,
 163			       txqi->txq.ac,
 164			       txqi->tin.backlog_bytes,
 165			       txqi->tin.backlog_packets,
 166			       txqi->tin.flows,
 167			       txqi->cstats.drop_count,
 168			       txqi->cstats.ecn_mark,
 169			       txqi->tin.overlimit,
 170			       txqi->tin.collisions,
 171			       txqi->tin.tx_bytes,
 172			       txqi->tin.tx_packets,
 173			       txqi->flags,
 174			       test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
 175			       test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
 176			       test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "",
 177			       test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : "");
 178	}
 179
 180	spin_unlock_bh(&local->fq.lock);
 181
 182	rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 183	kfree(buf);
 184	return rv;
 185}
 186STA_OPS(aqm);
 187
 188static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
 189				size_t count, loff_t *ppos)
 190{
 191	struct sta_info *sta = file->private_data;
 192	struct ieee80211_local *local = sta->sdata->local;
 193	size_t bufsz = 400;
 194	char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 195	u64 rx_airtime = 0, tx_airtime = 0;
 196	s32 deficit[IEEE80211_NUM_ACS];
 197	ssize_t rv;
 198	int ac;
 199
 200	if (!buf)
 201		return -ENOMEM;
 202
 203	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 204		spin_lock_bh(&local->active_txq_lock[ac]);
 205		rx_airtime += sta->airtime[ac].rx_airtime;
 206		tx_airtime += sta->airtime[ac].tx_airtime;
 207		deficit[ac] = sta->airtime[ac].deficit;
 208		spin_unlock_bh(&local->active_txq_lock[ac]);
 209	}
 210
 211	p += scnprintf(p, bufsz + buf - p,
 212		"RX: %llu us\nTX: %llu us\nWeight: %u\n"
 213		"Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n",
 214		rx_airtime, tx_airtime, sta->airtime_weight,
 215		deficit[0], deficit[1], deficit[2], deficit[3]);
 216
 217	rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 218	kfree(buf);
 219	return rv;
 220}
 221
 222static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
 223				 size_t count, loff_t *ppos)
 224{
 225	struct sta_info *sta = file->private_data;
 226	struct ieee80211_local *local = sta->sdata->local;
 227	int ac;
 228
 229	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 230		spin_lock_bh(&local->active_txq_lock[ac]);
 231		sta->airtime[ac].rx_airtime = 0;
 232		sta->airtime[ac].tx_airtime = 0;
 233		sta->airtime[ac].deficit = sta->airtime_weight;
 234		spin_unlock_bh(&local->active_txq_lock[ac]);
 235	}
 236
 237	return count;
 238}
 239STA_OPS_RW(airtime);
 240
 241static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
 242				size_t count, loff_t *ppos)
 243{
 244	struct sta_info *sta = file->private_data;
 245	struct ieee80211_local *local = sta->sdata->local;
 246	size_t bufsz = 400;
 247	char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
 248	u32 q_depth[IEEE80211_NUM_ACS];
 249	u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
 250	ssize_t rv;
 251	int ac;
 252
 253	if (!buf)
 254		return -ENOMEM;
 255
 256	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 257		spin_lock_bh(&local->active_txq_lock[ac]);
 258		q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
 259		q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
 260		spin_unlock_bh(&local->active_txq_lock[ac]);
 261		q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
 262	}
 263
 264	p += scnprintf(p, bufsz + buf - p,
 265		"Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
 266		"Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
 267		q_depth[0], q_depth[1], q_depth[2], q_depth[3],
 268		q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
 269		q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
 270
 271	rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 272	kfree(buf);
 273	return rv;
 274}
 275
 276static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
 277				 size_t count, loff_t *ppos)
 278{
 279	struct sta_info *sta = file->private_data;
 280	u32 ac, q_limit_l, q_limit_h;
 281	char _buf[100] = {}, *buf = _buf;
 282
 283	if (count > sizeof(_buf))
 284		return -EINVAL;
 285
 286	if (copy_from_user(buf, userbuf, count))
 287		return -EFAULT;
 288
 289	buf[sizeof(_buf) - 1] = '\0';
 290	if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
 291	    != 3)
 292		return -EINVAL;
 293
 294	if (ac >= IEEE80211_NUM_ACS)
 295		return -EINVAL;
 296
 297	sta->airtime[ac].aql_limit_low = q_limit_l;
 298	sta->airtime[ac].aql_limit_high = q_limit_h;
 299
 300	return count;
 301}
 302STA_OPS_RW(aql);
 303
 304
 305static ssize_t sta_agg_status_do_read(struct wiphy *wiphy, struct file *file,
 306				      char *buf, size_t bufsz, void *data)
 307{
 308	struct sta_info *sta = data;
 309	char *p = buf;
 310	int i;
 311	struct tid_ampdu_rx *tid_rx;
 312	struct tid_ampdu_tx *tid_tx;
 313
 314	p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
 315			sta->ampdu_mlme.dialog_token_allocator + 1);
 316	p += scnprintf(p, bufsz + buf - p,
 317		       "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 318
 319	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 320		bool tid_rx_valid;
 321
 322		tid_rx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_rx[i]);
 323		tid_tx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_tx[i]);
 324		tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 325
 326		p += scnprintf(p, bufsz + buf - p, "%02d", i);
 327		p += scnprintf(p, bufsz + buf - p, "\t\t%x",
 328			       tid_rx_valid);
 329		p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 330			       tid_rx_valid ?
 331					sta->ampdu_mlme.tid_rx_token[i] : 0);
 332		p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
 333				tid_rx ? tid_rx->ssn : 0);
 334
 335		p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
 336		p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
 337				tid_tx ? tid_tx->dialog_token : 0);
 338		p += scnprintf(p, bufsz + buf - p, "\t%03d",
 339				tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 340		p += scnprintf(p, bufsz + buf - p, "\n");
 341	}
 342
 343	return p - buf;
 344}
 345
 346static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 347				   size_t count, loff_t *ppos)
 348{
 349	struct sta_info *sta = file->private_data;
 350	struct wiphy *wiphy = sta->local->hw.wiphy;
 351	size_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
 352	char *buf = kmalloc(bufsz, GFP_KERNEL);
 353	ssize_t ret;
 354
 355	if (!buf)
 356		return -ENOMEM;
 357
 358	ret = wiphy_locked_debugfs_read(wiphy, file, buf, bufsz,
 359					userbuf, count, ppos,
 360					sta_agg_status_do_read, sta);
 361	kfree(buf);
 362
 363	return ret;
 364}
 365
 366static ssize_t sta_agg_status_do_write(struct wiphy *wiphy, struct file *file,
 367				       char *buf, size_t count, void *data)
 368{
 369	struct sta_info *sta = data;
 370	bool start, tx;
 371	unsigned long tid;
 372	char *pos = buf;
 373	int ret, timeout = 5000;
 374
 375	buf = strsep(&pos, " ");
 376	if (!buf)
 377		return -EINVAL;
 378
 379	if (!strcmp(buf, "tx"))
 380		tx = true;
 381	else if (!strcmp(buf, "rx"))
 382		tx = false;
 383	else
 384		return -EINVAL;
 385
 386	buf = strsep(&pos, " ");
 387	if (!buf)
 388		return -EINVAL;
 389	if (!strcmp(buf, "start")) {
 390		start = true;
 391		if (!tx)
 392			return -EINVAL;
 393	} else if (!strcmp(buf, "stop")) {
 394		start = false;
 395	} else {
 396		return -EINVAL;
 397	}
 398
 399	buf = strsep(&pos, " ");
 400	if (!buf)
 401		return -EINVAL;
 402	if (sscanf(buf, "timeout=%d", &timeout) == 1) {
 403		buf = strsep(&pos, " ");
 404		if (!buf || !tx || !start)
 405			return -EINVAL;
 406	}
 407
 408	ret = kstrtoul(buf, 0, &tid);
 409	if (ret || tid >= IEEE80211_NUM_TIDS)
 410		return -EINVAL;
 411
 412	if (tx) {
 413		if (start)
 414			ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
 415							    timeout);
 416		else
 417			ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
 418	} else {
 419		__ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 420					       3, true);
 421		ret = 0;
 422	}
 423
 424	return ret ?: count;
 425}
 426
 427static ssize_t sta_agg_status_write(struct file *file,
 428				    const char __user *userbuf,
 429				    size_t count, loff_t *ppos)
 430{
 431	struct sta_info *sta = file->private_data;
 432	struct wiphy *wiphy = sta->local->hw.wiphy;
 433	char _buf[26];
 434
 435	return wiphy_locked_debugfs_write(wiphy, file, _buf, sizeof(_buf),
 436					  userbuf, count,
 437					  sta_agg_status_do_write, sta);
 438}
 439STA_OPS_RW(agg_status);
 440
 441/* link sta attributes */
 442#define LINK_STA_OPS(name)						\
 443static const struct debugfs_short_fops link_sta_ ##name## _ops = {		\
 444	.read = link_sta_##name##_read,					\
 445	.llseek = generic_file_llseek,					\
 446}
 447
 448static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
 449				  size_t count, loff_t *ppos)
 450{
 451	struct link_sta_info *link_sta = file->private_data;
 452	u8 mac[MAC_ADDR_STR_LEN + 2];
 453
 454	snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
 455
 456	return simple_read_from_buffer(userbuf, count, ppos, mac,
 457				       MAC_ADDR_STR_LEN + 1);
 458}
 459
 460LINK_STA_OPS(addr);
 461
 462static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
 463				     size_t count, loff_t *ppos)
 464{
 465#define PRINT_HT_CAP(_cond, _str) \
 466	do { \
 467	if (_cond) \
 468			p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
 469	} while (0)
 470	char *buf, *p;
 471	int i;
 472	ssize_t bufsz = 512;
 473	struct link_sta_info *link_sta = file->private_data;
 474	struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
 475	ssize_t ret;
 476
 477	buf = kzalloc(bufsz, GFP_KERNEL);
 478	if (!buf)
 479		return -ENOMEM;
 480	p = buf;
 481
 482	p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
 483			htc->ht_supported ? "" : "not ");
 484	if (htc->ht_supported) {
 485		p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
 486
 487		PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 488		PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 489		PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 490
 491		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
 492		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
 493		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
 494
 495		PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
 496		PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
 497		PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
 498		PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
 499
 500		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
 501		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
 502		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
 503		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
 504
 505		PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
 506
 507		PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
 508			     "3839 bytes");
 509		PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
 510			     "7935 bytes");
 511
 512		/*
 513		 * For beacons and probe response this would mean the BSS
 514		 * does or does not allow the usage of DSSS/CCK HT40.
 515		 * Otherwise it means the STA does or does not use
 516		 * DSSS/CCK HT40.
 517		 */
 518		PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
 519		PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
 520
 521		/* BIT(13) is reserved */
 522
 523		PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
 524
 525		PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
 526
 527		p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
 528				htc->ampdu_factor, htc->ampdu_density);
 529		p += scnprintf(p, bufsz + buf - p, "MCS mask:");
 530
 531		for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 532			p += scnprintf(p, bufsz + buf - p, " %.2x",
 533					htc->mcs.rx_mask[i]);
 534		p += scnprintf(p, bufsz + buf - p, "\n");
 535
 536		/* If not set this is meaningless */
 537		if (le16_to_cpu(htc->mcs.rx_highest)) {
 538			p += scnprintf(p, bufsz + buf - p,
 539				       "MCS rx highest: %d Mbps\n",
 540				       le16_to_cpu(htc->mcs.rx_highest));
 541		}
 542
 543		p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
 544				htc->mcs.tx_params);
 545	}
 546
 547	ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 548	kfree(buf);
 549	return ret;
 550}
 551LINK_STA_OPS(ht_capa);
 552
 553static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
 554				      size_t count, loff_t *ppos)
 555{
 556	char *buf, *p;
 557	struct link_sta_info *link_sta = file->private_data;
 558	struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
 559	ssize_t ret;
 560	ssize_t bufsz = 512;
 561
 562	buf = kzalloc(bufsz, GFP_KERNEL);
 563	if (!buf)
 564		return -ENOMEM;
 565	p = buf;
 566
 567	p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
 568			vhtc->vht_supported ? "" : "not ");
 569	if (vhtc->vht_supported) {
 570		p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
 571			       vhtc->cap);
 572#define PFLAG(a, b)							\
 573		do {							\
 574			if (vhtc->cap & IEEE80211_VHT_CAP_ ## a)	\
 575				p += scnprintf(p, bufsz + buf - p, \
 576					       "\t\t%s\n", b);		\
 577		} while (0)
 578
 579		switch (vhtc->cap & 0x3) {
 580		case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
 581			p += scnprintf(p, bufsz + buf - p,
 582				       "\t\tMAX-MPDU-3895\n");
 583			break;
 584		case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
 585			p += scnprintf(p, bufsz + buf - p,
 586				       "\t\tMAX-MPDU-7991\n");
 587			break;
 588		case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
 589			p += scnprintf(p, bufsz + buf - p,
 590				       "\t\tMAX-MPDU-11454\n");
 591			break;
 592		default:
 593			p += scnprintf(p, bufsz + buf - p,
 594				       "\t\tMAX-MPDU-UNKNOWN\n");
 595		}
 596		switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 597		case 0:
 598			p += scnprintf(p, bufsz + buf - p,
 599				       "\t\t80Mhz\n");
 600			break;
 601		case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 602			p += scnprintf(p, bufsz + buf - p,
 603				       "\t\t160Mhz\n");
 604			break;
 605		case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
 606			p += scnprintf(p, bufsz + buf - p,
 607				       "\t\t80+80Mhz\n");
 608			break;
 609		default:
 610			p += scnprintf(p, bufsz + buf - p,
 611				       "\t\tUNKNOWN-MHZ: 0x%x\n",
 612				       (vhtc->cap >> 2) & 0x3);
 613		}
 614		PFLAG(RXLDPC, "RXLDPC");
 615		PFLAG(SHORT_GI_80, "SHORT-GI-80");
 616		PFLAG(SHORT_GI_160, "SHORT-GI-160");
 617		PFLAG(TXSTBC, "TXSTBC");
 618		p += scnprintf(p, bufsz + buf - p,
 619			       "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
 620		PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
 621		PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
 622		p += scnprintf(p, bufsz + buf - p,
 623			"\t\tBEAMFORMEE-STS: 0x%x\n",
 624			(vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
 625			IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 626		p += scnprintf(p, bufsz + buf - p,
 627			"\t\tSOUNDING-DIMENSIONS: 0x%x\n",
 628			(vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
 629			>> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
 630		PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
 631		PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
 632		PFLAG(VHT_TXOP_PS, "TXOP-PS");
 633		PFLAG(HTC_VHT, "HTC-VHT");
 634		p += scnprintf(p, bufsz + buf - p,
 635			"\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
 636			(vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
 637			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
 638		PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
 639		      "LINK-ADAPTATION-VHT-UNSOL-MFB");
 640		p += scnprintf(p, bufsz + buf - p,
 641			"\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
 642			(vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
 643		PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
 644		PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
 645
 646		p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
 647			       le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
 648		if (vhtc->vht_mcs.rx_highest)
 649			p += scnprintf(p, bufsz + buf - p,
 650				       "MCS RX highest: %d Mbps\n",
 651				       le16_to_cpu(vhtc->vht_mcs.rx_highest));
 652		p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
 653			       le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
 654		if (vhtc->vht_mcs.tx_highest)
 655			p += scnprintf(p, bufsz + buf - p,
 656				       "MCS TX highest: %d Mbps\n",
 657				       le16_to_cpu(vhtc->vht_mcs.tx_highest));
 658#undef PFLAG
 659	}
 660
 661	ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 662	kfree(buf);
 663	return ret;
 664}
 665LINK_STA_OPS(vht_capa);
 666
 667static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
 668				     size_t count, loff_t *ppos)
 669{
 670	char *buf, *p;
 671	size_t buf_sz = PAGE_SIZE;
 672	struct link_sta_info *link_sta = file->private_data;
 673	struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
 674	struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
 675	u8 ppe_size;
 676	u8 *cap;
 677	int i;
 678	ssize_t ret;
 679
 680	buf = kmalloc(buf_sz, GFP_KERNEL);
 681	if (!buf)
 682		return -ENOMEM;
 683	p = buf;
 684
 685	p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
 686		       hec->has_he ? "" : "not ");
 687	if (!hec->has_he)
 688		goto out;
 689
 690	cap = hec->he_cap_elem.mac_cap_info;
 691	p += scnprintf(p, buf_sz + buf - p,
 692		       "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 693		       cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
 694
 695#define PRINT(fmt, ...)							\
 696	p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",		\
 697		       ##__VA_ARGS__)
 698
 699#define PFLAG(t, n, a, b)						\
 700	do {								\
 701		if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a)		\
 702			PRINT("%s", b);					\
 703	} while (0)
 704
 705#define PFLAG_RANGE(t, i, n, s, m, off, fmt)				\
 706	do {								\
 707		u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK;	\
 708		u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off;	\
 709		PRINT(fmt, (s << idx) + (m * idx));			\
 710	} while (0)
 711
 712#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b)		\
 713	do {								\
 714		if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) {	\
 715			PRINT("%s", b);					\
 716			break;						\
 717		}							\
 718		PFLAG_RANGE(t, i, n, s, m, off, fmt);			\
 719	} while (0)
 720
 721	PFLAG(MAC, 0, HTC_HE, "HTC-HE");
 722	PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
 723	PFLAG(MAC, 0, TWT_RES, "TWT-RES");
 724	PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
 725			    "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
 726	PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
 727			    "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
 728
 729	PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
 730			    "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
 731	PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
 732			    "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
 733	PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
 734		    "MULTI-TID-AGG-RX-QOS-%d");
 735
 736	if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
 737		switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
 738		case 0:
 739			PRINT("LINK-ADAPTATION-NO-FEEDBACK");
 740			break;
 741		case 1:
 742			PRINT("LINK-ADAPTATION-RESERVED");
 743			break;
 744		case 2:
 745			PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
 746			break;
 747		case 3:
 748			PRINT("LINK-ADAPTATION-BOTH");
 749			break;
 750		}
 751	}
 752
 753	PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
 754	PFLAG(MAC, 2, TRS, "TRS");
 755	PFLAG(MAC, 2, BSR, "BSR");
 756	PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
 757	PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
 758	PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
 759	PFLAG(MAC, 2, ACK_EN, "ACK-EN");
 760
 761	PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
 762	PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
 763
 764	switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
 765	case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
 766		PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
 767		break;
 768	case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
 769		PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
 770		break;
 771	case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
 772		PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
 773		break;
 774	case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
 775		PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
 776		break;
 777	}
 778
 779	PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
 780	PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
 781	PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
 782
 783	PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
 784	PFLAG(MAC, 4, QTP, "QTP");
 785	PFLAG(MAC, 4, BQR, "BQR");
 786	PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
 787	PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
 788	PFLAG(MAC, 4, OPS, "OPS");
 789	PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
 790
 791	PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
 792
 793	PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
 794	      "SUBCHAN-SELECTIVE-TRANSMISSION");
 795	PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
 796	PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
 797	PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
 798	PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
 799	PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
 800
 801	cap = hec->he_cap_elem.phy_cap_info;
 802	p += scnprintf(p, buf_sz + buf - p,
 803		       "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
 804		       cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
 805		       cap[7], cap[8], cap[9], cap[10]);
 806
 807	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
 808	      "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
 809	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 810	      "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
 811	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 812	      "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
 813	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
 814	      "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
 815	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
 816	      "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
 817	PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
 818	      "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
 819
 820	switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
 821	case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
 822		PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
 823		break;
 824	case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
 825		PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
 826		break;
 827	case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
 828		PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
 829		break;
 830	case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
 831		PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
 832		break;
 833	}
 834
 835	PFLAG(PHY, 1, DEVICE_CLASS_A,
 836	      "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
 837	PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
 838	      "LDPC-CODING-IN-PAYLOAD");
 839	PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
 840	      "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
 841	PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
 842
 843	PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
 844	PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
 845	PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
 846	PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
 847	PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
 848	PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
 849	PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
 850
 851	switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
 852	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
 853		PRINT("DCM-MAX-CONST-TX-NO-DCM");
 854		break;
 855	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
 856		PRINT("DCM-MAX-CONST-TX-BPSK");
 857		break;
 858	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
 859		PRINT("DCM-MAX-CONST-TX-QPSK");
 860		break;
 861	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
 862		PRINT("DCM-MAX-CONST-TX-16-QAM");
 863		break;
 864	}
 865
 866	PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
 867	PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
 868
 869	switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
 870	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
 871		PRINT("DCM-MAX-CONST-RX-NO-DCM");
 872		break;
 873	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
 874		PRINT("DCM-MAX-CONST-RX-BPSK");
 875		break;
 876	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
 877		PRINT("DCM-MAX-CONST-RX-QPSK");
 878		break;
 879	case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
 880		PRINT("DCM-MAX-CONST-RX-16-QAM");
 881		break;
 882	}
 883
 884	PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
 885	PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
 886	PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
 887	      "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
 888	PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
 889
 890	PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
 891	PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
 892
 893	PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
 894		    "BEAMFORMEE-MAX-STS-UNDER-%d");
 895	PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
 896		    "BEAMFORMEE-MAX-STS-ABOVE-%d");
 897
 898	PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
 899		    "NUM-SND-DIM-UNDER-80MHZ-%d");
 900	PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
 901		    "NUM-SND-DIM-ABOVE-80MHZ-%d");
 902	PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
 903	PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
 904
 905	PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
 906	PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
 907	PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
 908	PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
 909	      "MU-BEAMFORMING-PARTIAL-BW-FB");
 910	PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
 911	PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
 912	PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
 913	      "PARTIAL-BANDWIDTH-DL-MUMIMO");
 914	PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
 915
 916	PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
 917	PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
 918	PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
 919	      "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
 920	PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
 921	PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
 922	PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
 923
 924	PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
 925	      "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
 926	PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
 927	      "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
 928	PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
 929	PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
 930	PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
 931	      "HE-ER-SU-1XLTF-AND-08-US-GI");
 932	PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
 933	      "MIDAMBLE-RX-TX-2X-AND-1XLTF");
 934
 935	switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
 936	case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
 937		PRINT("DCM-MAX-RU-242");
 938		break;
 939	case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
 940		PRINT("DCM-MAX-RU-484");
 941		break;
 942	case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
 943		PRINT("DCM-MAX-RU-996");
 944		break;
 945	case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
 946		PRINT("DCM-MAX-RU-2x996");
 947		break;
 948	}
 949
 950	PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
 951	      "LONGER-THAN-16-SIGB-OFDM-SYM");
 952	PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
 953	      "NON-TRIGGERED-CQI-FEEDBACK");
 954	PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
 955	      "TX-1024-QAM-LESS-THAN-242-TONE-RU");
 956	PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
 957	      "RX-1024-QAM-LESS-THAN-242-TONE-RU");
 958	PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
 959	      "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
 960	PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
 961	      "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
 962
 963	switch (u8_get_bits(cap[9],
 964			    IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
 965	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
 966		PRINT("NOMINAL-PACKET-PADDING-0US");
 967		break;
 968	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
 969		PRINT("NOMINAL-PACKET-PADDING-8US");
 970		break;
 971	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
 972		PRINT("NOMINAL-PACKET-PADDING-16US");
 973		break;
 974	}
 975
 976#undef PFLAG_RANGE_DEFAULT
 977#undef PFLAG_RANGE
 978#undef PFLAG
 979
 980#define PRINT_NSS_SUPP(f, n)						\
 981	do {								\
 982		int _i;							\
 983		u16 v = le16_to_cpu(nss->f);				\
 984		p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);	\
 985		for (_i = 0; _i < 8; _i += 2) {				\
 986			switch ((v >> _i) & 0x3) {			\
 987			case 0:						\
 988				PRINT(n "-%d-SUPPORT-0-7", _i / 2);	\
 989				break;					\
 990			case 1:						\
 991				PRINT(n "-%d-SUPPORT-0-9", _i / 2);	\
 992				break;					\
 993			case 2:						\
 994				PRINT(n "-%d-SUPPORT-0-11", _i / 2);	\
 995				break;					\
 996			case 3:						\
 997				PRINT(n "-%d-NOT-SUPPORTED", _i / 2);	\
 998				break;					\
 999			}						\
1000		}							\
1001	} while (0)
1002
1003	PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1004	PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1005
1006	if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1007		PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1008		PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1009	}
1010
1011	if (cap[0] &
1012	    IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1013		PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1014		PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1015	}
1016
1017#undef PRINT_NSS_SUPP
1018#undef PRINT
1019
1020	if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1021		goto out;
1022
1023	p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1024		       hec->ppe_thres[0]);
1025
1026	ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1027	for (i = 1; i < ppe_size; i++) {
1028		p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1029			       hec->ppe_thres[i]);
1030	}
1031	p += scnprintf(p, buf_sz + buf - p, "\n");
1032
1033out:
1034	ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1035	kfree(buf);
1036	return ret;
1037}
1038LINK_STA_OPS(he_capa);
1039
1040static ssize_t link_sta_eht_capa_read(struct file *file, char __user *userbuf,
1041				      size_t count, loff_t *ppos)
1042{
1043	char *buf, *p;
1044	size_t buf_sz = PAGE_SIZE;
1045	struct link_sta_info *link_sta = file->private_data;
1046	struct ieee80211_sta_eht_cap *bec = &link_sta->pub->eht_cap;
1047	struct ieee80211_eht_cap_elem_fixed *fixed = &bec->eht_cap_elem;
1048	struct ieee80211_eht_mcs_nss_supp *nss = &bec->eht_mcs_nss_supp;
1049	u8 *cap;
1050	int i;
1051	ssize_t ret;
1052	static const char *mcs_desc[] = { "0-7", "8-9", "10-11", "12-13"};
1053
1054	buf = kmalloc(buf_sz, GFP_KERNEL);
1055	if (!buf)
1056		return -ENOMEM;
1057	p = buf;
1058
1059	p += scnprintf(p, buf_sz + buf - p, "EHT %ssupported\n",
1060		       bec->has_eht ? "" : "not ");
1061	if (!bec->has_eht)
1062		goto out;
1063
1064	p += scnprintf(p, buf_sz + buf - p,
1065		       "MAC-CAP: %#.2x %#.2x\n",
1066		       fixed->mac_cap_info[0], fixed->mac_cap_info[1]);
1067	p += scnprintf(p, buf_sz + buf - p,
1068		       "PHY-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
1069		       fixed->phy_cap_info[0], fixed->phy_cap_info[1],
1070		       fixed->phy_cap_info[2], fixed->phy_cap_info[3],
1071		       fixed->phy_cap_info[4], fixed->phy_cap_info[5],
1072		       fixed->phy_cap_info[6], fixed->phy_cap_info[7],
1073		       fixed->phy_cap_info[8]);
1074
1075#define PRINT(fmt, ...)							\
1076	p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n",		\
1077		       ##__VA_ARGS__)
1078
1079#define PFLAG(t, n, a, b)						\
1080	do {								\
1081		if (cap[n] & IEEE80211_EHT_##t##_CAP##n##_##a)		\
1082			PRINT("%s", b);					\
1083	} while (0)
1084
1085	cap = fixed->mac_cap_info;
1086	PFLAG(MAC, 0, EPCS_PRIO_ACCESS, "EPCS-PRIO-ACCESS");
1087	PFLAG(MAC, 0, OM_CONTROL, "OM-CONTROL");
1088	PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE1, "TRIG-TXOP-SHARING-MODE1");
1089	PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE2, "TRIG-TXOP-SHARING-MODE2");
1090	PFLAG(MAC, 0, RESTRICTED_TWT, "RESTRICTED-TWT");
1091	PFLAG(MAC, 0, SCS_TRAFFIC_DESC, "SCS-TRAFFIC-DESC");
1092	switch ((cap[0] & 0xc0) >> 6) {
1093	case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895:
1094		PRINT("MAX-MPDU-LEN: 3985");
1095		break;
1096	case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991:
1097		PRINT("MAX-MPDU-LEN: 7991");
1098		break;
1099	case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454:
1100		PRINT("MAX-MPDU-LEN: 11454");
1101		break;
1102	}
1103
1104	cap = fixed->phy_cap_info;
1105	PFLAG(PHY, 0, 320MHZ_IN_6GHZ, "320MHZ-IN-6GHZ");
1106	PFLAG(PHY, 0, 242_TONE_RU_GT20MHZ, "242-TONE-RU-GT20MHZ");
1107	PFLAG(PHY, 0, NDP_4_EHT_LFT_32_GI, "NDP-4-EHT-LFT-32-GI");
1108	PFLAG(PHY, 0, PARTIAL_BW_UL_MU_MIMO, "PARTIAL-BW-UL-MU-MIMO");
1109	PFLAG(PHY, 0, SU_BEAMFORMER, "SU-BEAMFORMER");
1110	PFLAG(PHY, 0, SU_BEAMFORMEE, "SU-BEAMFORMEE");
1111	i = cap[0] >> 7;
1112	i |= (cap[1] & 0x3) << 1;
1113	PRINT("BEAMFORMEE-80-NSS: %i", i);
1114	PRINT("BEAMFORMEE-160-NSS: %i", (cap[1] >> 2) & 0x7);
1115	PRINT("BEAMFORMEE-320-NSS: %i", (cap[1] >> 5) & 0x7);
1116	PRINT("SOUNDING-DIM-80-NSS: %i", (cap[2] & 0x7));
1117	PRINT("SOUNDING-DIM-160-NSS: %i", (cap[2] >> 3) & 0x7);
1118	i = cap[2] >> 6;
1119	i |= (cap[3] & 0x1) << 3;
1120	PRINT("SOUNDING-DIM-320-NSS: %i", i);
1121
1122	PFLAG(PHY, 3, NG_16_SU_FEEDBACK, "NG-16-SU-FEEDBACK");
1123	PFLAG(PHY, 3, NG_16_MU_FEEDBACK, "NG-16-MU-FEEDBACK");
1124	PFLAG(PHY, 3, CODEBOOK_4_2_SU_FDBK, "CODEBOOK-4-2-SU-FDBK");
1125	PFLAG(PHY, 3, CODEBOOK_7_5_MU_FDBK, "CODEBOOK-7-5-MU-FDBK");
1126	PFLAG(PHY, 3, TRIG_SU_BF_FDBK, "TRIG-SU-BF-FDBK");
1127	PFLAG(PHY, 3, TRIG_MU_BF_PART_BW_FDBK, "TRIG-MU-BF-PART-BW-FDBK");
1128	PFLAG(PHY, 3, TRIG_CQI_FDBK, "TRIG-CQI-FDBK");
1129
1130	PFLAG(PHY, 4, PART_BW_DL_MU_MIMO, "PART-BW-DL-MU-MIMO");
1131	PFLAG(PHY, 4, PSR_SR_SUPP, "PSR-SR-SUPP");
1132	PFLAG(PHY, 4, POWER_BOOST_FACT_SUPP, "POWER-BOOST-FACT-SUPP");
1133	PFLAG(PHY, 4, EHT_MU_PPDU_4_EHT_LTF_08_GI, "EHT-MU-PPDU-4-EHT-LTF-08-GI");
1134	PRINT("MAX_NC: %i", cap[4] >> 4);
1135
1136	PFLAG(PHY, 5, NON_TRIG_CQI_FEEDBACK, "NON-TRIG-CQI-FEEDBACK");
1137	PFLAG(PHY, 5, TX_LESS_242_TONE_RU_SUPP, "TX-LESS-242-TONE-RU-SUPP");
1138	PFLAG(PHY, 5, RX_LESS_242_TONE_RU_SUPP, "RX-LESS-242-TONE-RU-SUPP");
1139	PFLAG(PHY, 5, PPE_THRESHOLD_PRESENT, "PPE_THRESHOLD_PRESENT");
1140	switch (cap[5] >> 4 & 0x3) {
1141	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
1142		PRINT("NOMINAL_PKT_PAD: 0us");
1143		break;
1144	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
1145		PRINT("NOMINAL_PKT_PAD: 8us");
1146		break;
1147	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
1148		PRINT("NOMINAL_PKT_PAD: 16us");
1149		break;
1150	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
1151		PRINT("NOMINAL_PKT_PAD: 20us");
1152		break;
1153	}
1154	i = cap[5] >> 6;
1155	i |= cap[6] & 0x7;
1156	PRINT("MAX-NUM-SUPP-EHT-LTF: %i", i);
1157	PFLAG(PHY, 5, SUPP_EXTRA_EHT_LTF, "SUPP-EXTRA-EHT-LTF");
1158
1159	i = (cap[6] >> 3) & 0xf;
1160	PRINT("MCS15-SUPP-MASK: %i", i);
1161	PFLAG(PHY, 6, EHT_DUP_6GHZ_SUPP, "EHT-DUP-6GHZ-SUPP");
1162
1163	PFLAG(PHY, 7, 20MHZ_STA_RX_NDP_WIDER_BW, "20MHZ-STA-RX-NDP-WIDER-BW");
1164	PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_80MHZ, "NON-OFDMA-UL-MU-MIMO-80MHZ");
1165	PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_160MHZ, "NON-OFDMA-UL-MU-MIMO-160MHZ");
1166	PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_320MHZ, "NON-OFDMA-UL-MU-MIMO-320MHZ");
1167	PFLAG(PHY, 7, MU_BEAMFORMER_80MHZ, "MU-BEAMFORMER-80MHZ");
1168	PFLAG(PHY, 7, MU_BEAMFORMER_160MHZ, "MU-BEAMFORMER-160MHZ");
1169	PFLAG(PHY, 7, MU_BEAMFORMER_320MHZ, "MU-BEAMFORMER-320MHZ");
1170	PFLAG(PHY, 7, TB_SOUNDING_FDBK_RATE_LIMIT, "TB-SOUNDING-FDBK-RATE-LIMIT");
1171
1172	PFLAG(PHY, 8, RX_1024QAM_WIDER_BW_DL_OFDMA, "RX-1024QAM-WIDER-BW-DL-OFDMA");
1173	PFLAG(PHY, 8, RX_4096QAM_WIDER_BW_DL_OFDMA, "RX-4096QAM-WIDER-BW-DL-OFDMA");
1174
1175#undef PFLAG
1176
1177	PRINT(""); /* newline */
1178	if (!(link_sta->pub->he_cap.he_cap_elem.phy_cap_info[0] &
1179	      IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) {
1180		u8 *mcs_vals = (u8 *)(&nss->only_20mhz);
1181
1182		for (i = 0; i < 4; i++)
1183			PRINT("EHT bw=20 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1184			      mcs_desc[i],
1185			      mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1186	} else {
1187		u8 *mcs_vals = (u8 *)(&nss->bw._80);
1188
1189		for (i = 0; i < 3; i++)
1190			PRINT("EHT bw <= 80 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1191			      mcs_desc[i + 1],
1192			      mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1193
1194		mcs_vals = (u8 *)(&nss->bw._160);
1195		for (i = 0; i < 3; i++)
1196			PRINT("EHT bw <= 160 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1197			      mcs_desc[i + 1],
1198			      mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1199
1200		mcs_vals = (u8 *)(&nss->bw._320);
1201		for (i = 0; i < 3; i++)
1202			PRINT("EHT bw <= 320 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1203			      mcs_desc[i + 1],
1204			      mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1205	}
1206
1207	if (cap[5] & IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
1208		u8 ppe_size = ieee80211_eht_ppe_size(bec->eht_ppe_thres[0], cap);
1209
1210		p += scnprintf(p, buf_sz + buf - p, "EHT PPE Thresholds: ");
1211		for (i = 0; i < ppe_size; i++)
1212			p += scnprintf(p, buf_sz + buf - p, "0x%02x ",
1213				       bec->eht_ppe_thres[i]);
1214		PRINT(""); /* newline */
1215	}
1216
1217out:
1218	ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1219	kfree(buf);
1220	return ret;
1221}
1222LINK_STA_OPS(eht_capa);
1223
1224#define DEBUGFS_ADD(name) \
1225	debugfs_create_file(#name, 0400, \
1226		sta->debugfs_dir, sta, &sta_ ##name## _ops)
1227
1228#define DEBUGFS_ADD_COUNTER(name, field)				\
1229	debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1230
1231void ieee80211_sta_debugfs_add(struct sta_info *sta)
1232{
1233	struct ieee80211_local *local = sta->local;
1234	struct ieee80211_sub_if_data *sdata = sta->sdata;
1235	struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1236	u8 mac[MAC_ADDR_STR_LEN + 1];
1237
1238	if (!stations_dir)
1239		return;
1240
1241	snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1242
1243	/*
1244	 * This might fail due to a race condition:
1245	 * When mac80211 unlinks a station, the debugfs entries
1246	 * remain, but it is already possible to link a new
1247	 * station with the same address which triggers adding
1248	 * it to debugfs; therefore, if the old station isn't
1249	 * destroyed quickly enough the old station's debugfs
1250	 * dir might still be around.
1251	 */
1252	sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1253
1254	DEBUGFS_ADD(flags);
1255	DEBUGFS_ADD(aid);
1256	DEBUGFS_ADD(num_ps_buf_frames);
1257	DEBUGFS_ADD(last_seq_ctrl);
1258	DEBUGFS_ADD(agg_status);
1259	/* FIXME: Kept here as the statistics are only done on the deflink */
1260	DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1261
1262	DEBUGFS_ADD(aqm);
1263	DEBUGFS_ADD(airtime);
1264
1265	if (wiphy_ext_feature_isset(local->hw.wiphy,
1266				    NL80211_EXT_FEATURE_AQL))
1267		DEBUGFS_ADD(aql);
1268
1269	debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1270			   &sta->driver_buffered_tids);
1271
1272	drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1273}
1274
1275void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1276{
1277	debugfs_remove_recursive(sta->debugfs_dir);
1278	sta->debugfs_dir = NULL;
1279}
1280
1281#undef DEBUGFS_ADD
1282#undef DEBUGFS_ADD_COUNTER
1283
1284#define DEBUGFS_ADD(name) \
1285	debugfs_create_file(#name, 0400, \
1286		link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1287#define DEBUGFS_ADD_COUNTER(name, field)				\
1288	debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1289
1290void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1291{
1292	if (WARN_ON(!link_sta->sta->debugfs_dir))
1293		return;
1294
1295	/* For non-MLO, leave the files in the main directory. */
1296	if (link_sta->sta->sta.valid_links) {
1297		char link_dir_name[10];
1298
1299		snprintf(link_dir_name, sizeof(link_dir_name),
1300			 "link-%d", link_sta->link_id);
1301
1302		link_sta->debugfs_dir =
1303			debugfs_create_dir(link_dir_name,
1304					   link_sta->sta->debugfs_dir);
1305
1306		DEBUGFS_ADD(addr);
1307	} else {
1308		if (WARN_ON(link_sta != &link_sta->sta->deflink))
1309			return;
1310
1311		link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1312	}
1313
1314	DEBUGFS_ADD(ht_capa);
1315	DEBUGFS_ADD(vht_capa);
1316	DEBUGFS_ADD(he_capa);
1317	DEBUGFS_ADD(eht_capa);
1318
1319	DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1320	DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1321}
1322
1323void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1324{
1325	if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1326		link_sta->debugfs_dir = NULL;
1327		return;
1328	}
1329
1330	if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1331		WARN_ON(link_sta != &link_sta->sta->deflink);
1332		link_sta->sta->debugfs_dir = NULL;
1333		return;
1334	}
1335
1336	debugfs_remove_recursive(link_sta->debugfs_dir);
1337	link_sta->debugfs_dir = NULL;
1338}
1339
1340void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1341{
1342	if (WARN_ON(!link_sta->debugfs_dir))
1343		return;
1344
1345	drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1346				 link_sta->pub, link_sta->debugfs_dir);
1347}
1348
1349void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1350{
1351	if (!link_sta->debugfs_dir)
1352		return;
1353
1354	if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1355		return;
1356
1357	/* Recreate the directory excluding the driver data */
1358	debugfs_remove_recursive(link_sta->debugfs_dir);
1359	link_sta->debugfs_dir = NULL;
1360
1361	ieee80211_link_sta_debugfs_add(link_sta);
1362}