1 // SPDX-License-Identifier: GPL-2.0-only
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
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include "ieee80211_i.h"
15 #include "debugfs_sta.h"
17 #include "driver-ops.h"
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) \
26 struct sta_info *sta = file->private_data; \
27 return mac80211_format_buffer(userbuf, count, ppos, \
28 format_string, sta->field); \
30 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
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, \
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, \
47 #define STA_FILE(name, field, format) \
48 STA_READ_##format(name, field) \
51 STA_FILE(aid, sta.aid, D);
53 static const char * const sta_flag_names[] = {
54 #define FLAG(F) [WLAN_STA_##F] = #F
69 FLAG(TDLS_CHAN_SWITCH),
70 FLAG(TDLS_OFF_CHANNEL),
84 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
85 size_t count, loff_t *ppos)
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;
92 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
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",
100 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
104 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
105 char __user *userbuf,
106 size_t count, loff_t *ppos)
108 struct sta_info *sta = file->private_data;
109 char buf[17*IEEE80211_NUM_ACS], *p = buf;
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);
118 STA_OPS(num_ps_buf_frames);
120 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
121 size_t count, loff_t *ppos)
123 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
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);
132 STA_OPS(last_seq_ctrl);
134 #define AQM_TXQ_ENTRY_LEN 130
136 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
137 size_t count, loff_t *ppos)
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;
150 spin_lock_bh(&local->fq.lock);
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");
161 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
163 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
164 if (!sta->sta.txq[i])
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",
171 txqi->tin.backlog_bytes,
172 txqi->tin.backlog_packets,
174 txqi->cstats.drop_count,
175 txqi->cstats.ecn_mark,
177 txqi->tin.collisions,
179 txqi->tin.tx_packets,
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" : "");
187 spin_unlock_bh(&local->fq.lock);
189 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
195 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
196 size_t count, loff_t *ppos)
198 struct sta_info *sta = file->private_data;
199 struct ieee80211_local *local = sta->sdata->local;
201 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
202 u64 rx_airtime = 0, tx_airtime = 0;
203 s64 deficit[IEEE80211_NUM_ACS];
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]);
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, tx_airtime, sta->airtime_weight,
222 deficit[0], deficit[1], deficit[2], deficit[3]);
224 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
229 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
230 size_t count, loff_t *ppos)
232 struct sta_info *sta = file->private_data;
233 struct ieee80211_local *local = sta->sdata->local;
236 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
237 spin_lock_bh(&local->active_txq_lock[ac]);
238 sta->airtime[ac].rx_airtime = 0;
239 sta->airtime[ac].tx_airtime = 0;
240 sta->airtime[ac].deficit = sta->airtime_weight;
241 spin_unlock_bh(&local->active_txq_lock[ac]);
248 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
249 size_t count, loff_t *ppos)
251 struct sta_info *sta = file->private_data;
252 struct ieee80211_local *local = sta->sdata->local;
254 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
255 u32 q_depth[IEEE80211_NUM_ACS];
256 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
263 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
264 spin_lock_bh(&local->active_txq_lock[ac]);
265 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
266 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
267 spin_unlock_bh(&local->active_txq_lock[ac]);
268 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
271 p += scnprintf(p, bufsz + buf - p,
272 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
273 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
274 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
275 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
276 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]),
278 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
283 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
284 size_t count, loff_t *ppos)
286 struct sta_info *sta = file->private_data;
287 u32 ac, q_limit_l, q_limit_h;
288 char _buf[100] = {}, *buf = _buf;
290 if (count > sizeof(_buf))
293 if (copy_from_user(buf, userbuf, count))
296 buf[sizeof(_buf) - 1] = '\0';
297 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
301 if (ac >= IEEE80211_NUM_ACS)
304 sta->airtime[ac].aql_limit_low = q_limit_l;
305 sta->airtime[ac].aql_limit_high = q_limit_h;
312 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
313 size_t count, loff_t *ppos)
315 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
317 struct sta_info *sta = file->private_data;
318 struct tid_ampdu_rx *tid_rx;
319 struct tid_ampdu_tx *tid_tx;
323 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
324 sta->ampdu_mlme.dialog_token_allocator + 1);
325 p += scnprintf(p, sizeof(buf) + buf - p,
326 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
328 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
331 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
332 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
333 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
335 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
336 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
338 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
340 sta->ampdu_mlme.tid_rx_token[i] : 0);
341 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
342 tid_rx ? tid_rx->ssn : 0);
344 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
345 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
346 tid_tx ? tid_tx->dialog_token : 0);
347 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
348 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
349 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
353 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
356 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
357 size_t count, loff_t *ppos)
359 char _buf[25] = {}, *buf = _buf;
360 struct sta_info *sta = file->private_data;
364 int ret, timeout = 5000;
366 if (count > sizeof(_buf))
369 if (copy_from_user(buf, userbuf, count))
372 buf[sizeof(_buf) - 1] = '\0';
374 buf = strsep(&pos, " ");
378 if (!strcmp(buf, "tx"))
380 else if (!strcmp(buf, "rx"))
385 buf = strsep(&pos, " ");
388 if (!strcmp(buf, "start")) {
392 } else if (!strcmp(buf, "stop")) {
398 buf = strsep(&pos, " ");
401 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
402 buf = strsep(&pos, " ");
403 if (!buf || !tx || !start)
407 ret = kstrtoul(buf, 0, &tid);
408 if (ret || tid >= IEEE80211_NUM_TIDS)
413 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
416 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
418 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
425 STA_OPS_RW(agg_status);
427 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
428 size_t count, loff_t *ppos)
430 #define PRINT_HT_CAP(_cond, _str) \
433 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
435 char buf[512], *p = buf;
437 struct sta_info *sta = file->private_data;
438 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
440 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
441 htc->ht_supported ? "" : "not ");
442 if (htc->ht_supported) {
443 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
445 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
446 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
447 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
449 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
450 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
451 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
453 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
454 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
455 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
456 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
458 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
459 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
460 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
461 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
463 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
465 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
467 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
471 * For beacons and probe response this would mean the BSS
472 * does or does not allow the usage of DSSS/CCK HT40.
473 * Otherwise it means the STA does or does not use
476 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
477 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
479 /* BIT(13) is reserved */
481 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
483 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
485 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
486 htc->ampdu_factor, htc->ampdu_density);
487 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
489 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
490 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
491 htc->mcs.rx_mask[i]);
492 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
494 /* If not set this is meaningless */
495 if (le16_to_cpu(htc->mcs.rx_highest)) {
496 p += scnprintf(p, sizeof(buf)+buf-p,
497 "MCS rx highest: %d Mbps\n",
498 le16_to_cpu(htc->mcs.rx_highest));
501 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
505 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
509 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
510 size_t count, loff_t *ppos)
512 char buf[512], *p = buf;
513 struct sta_info *sta = file->private_data;
514 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
516 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
517 vhtc->vht_supported ? "" : "not ");
518 if (vhtc->vht_supported) {
519 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
521 #define PFLAG(a, b) \
523 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
524 p += scnprintf(p, sizeof(buf) + buf - p, \
528 switch (vhtc->cap & 0x3) {
529 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
530 p += scnprintf(p, sizeof(buf) + buf - p,
531 "\t\tMAX-MPDU-3895\n");
533 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
534 p += scnprintf(p, sizeof(buf) + buf - p,
535 "\t\tMAX-MPDU-7991\n");
537 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
538 p += scnprintf(p, sizeof(buf) + buf - p,
539 "\t\tMAX-MPDU-11454\n");
542 p += scnprintf(p, sizeof(buf) + buf - p,
543 "\t\tMAX-MPDU-UNKNOWN\n");
545 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
547 p += scnprintf(p, sizeof(buf) + buf - p,
550 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
551 p += scnprintf(p, sizeof(buf) + buf - p,
554 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
555 p += scnprintf(p, sizeof(buf) + buf - p,
559 p += scnprintf(p, sizeof(buf) + buf - p,
560 "\t\tUNKNOWN-MHZ: 0x%x\n",
561 (vhtc->cap >> 2) & 0x3);
563 PFLAG(RXLDPC, "RXLDPC");
564 PFLAG(SHORT_GI_80, "SHORT-GI-80");
565 PFLAG(SHORT_GI_160, "SHORT-GI-160");
566 PFLAG(TXSTBC, "TXSTBC");
567 p += scnprintf(p, sizeof(buf) + buf - p,
568 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
569 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
570 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
571 p += scnprintf(p, sizeof(buf) + buf - p,
572 "\t\tBEAMFORMEE-STS: 0x%x\n",
573 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
574 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
575 p += scnprintf(p, sizeof(buf) + buf - p,
576 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
577 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
578 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
579 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
580 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
581 PFLAG(VHT_TXOP_PS, "TXOP-PS");
582 PFLAG(HTC_VHT, "HTC-VHT");
583 p += scnprintf(p, sizeof(buf) + buf - p,
584 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
585 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
586 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
587 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
588 "LINK-ADAPTATION-VHT-UNSOL-MFB");
589 p += scnprintf(p, sizeof(buf) + buf - p,
590 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
591 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
592 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
593 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
595 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
596 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
597 if (vhtc->vht_mcs.rx_highest)
598 p += scnprintf(p, sizeof(buf)+buf-p,
599 "MCS RX highest: %d Mbps\n",
600 le16_to_cpu(vhtc->vht_mcs.rx_highest));
601 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
602 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
603 if (vhtc->vht_mcs.tx_highest)
604 p += scnprintf(p, sizeof(buf)+buf-p,
605 "MCS TX highest: %d Mbps\n",
606 le16_to_cpu(vhtc->vht_mcs.tx_highest));
610 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
614 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
615 size_t count, loff_t *ppos)
618 size_t buf_sz = PAGE_SIZE;
619 struct sta_info *sta = file->private_data;
620 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
621 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
627 buf = kmalloc(buf_sz, GFP_KERNEL);
632 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
633 hec->has_he ? "" : "not ");
637 cap = hec->he_cap_elem.mac_cap_info;
638 p += scnprintf(p, buf_sz + buf - p,
639 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
640 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
642 #define PRINT(fmt, ...) \
643 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
646 #define PFLAG(t, n, a, b) \
648 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
652 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
654 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
655 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
656 PRINT(fmt, (s << idx) + (m * idx)); \
659 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
661 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
665 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
668 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
669 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
670 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
671 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
672 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
673 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
674 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
676 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
677 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
678 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
679 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
680 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
681 "MULTI-TID-AGG-RX-QOS-%d");
683 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
684 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
686 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
689 PRINT("LINK-ADAPTATION-RESERVED");
692 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
695 PRINT("LINK-ADAPTATION-BOTH");
700 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
701 PFLAG(MAC, 2, TRS, "TRS");
702 PFLAG(MAC, 2, BSR, "BSR");
703 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
704 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
705 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
706 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
708 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
709 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
711 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
712 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
713 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
715 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
716 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
718 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
719 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
721 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
722 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
726 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
727 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
728 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
730 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
731 PFLAG(MAC, 4, QTP, "QTP");
732 PFLAG(MAC, 4, BQR, "BQR");
733 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
734 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
735 PFLAG(MAC, 4, OPS, "OPS");
736 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
738 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
740 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
741 "SUBCHAN-SELECVITE-TRANSMISSION");
742 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
743 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
744 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
745 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
746 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
748 cap = hec->he_cap_elem.phy_cap_info;
749 p += scnprintf(p, buf_sz + buf - p,
750 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
751 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
752 cap[7], cap[8], cap[9], cap[10]);
754 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
755 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
756 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
757 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
758 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
759 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
760 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
761 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
762 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
763 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
764 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
765 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
767 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
768 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
769 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
771 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
772 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
774 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
775 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
777 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
778 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
782 PFLAG(PHY, 1, DEVICE_CLASS_A,
783 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
784 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
785 "LDPC-CODING-IN-PAYLOAD");
786 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
787 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
788 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
790 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
791 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
792 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
793 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
794 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
795 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
796 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
798 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
799 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
800 PRINT("DCM-MAX-CONST-TX-NO-DCM");
802 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
803 PRINT("DCM-MAX-CONST-TX-BPSK");
805 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
806 PRINT("DCM-MAX-CONST-TX-QPSK");
808 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
809 PRINT("DCM-MAX-CONST-TX-16-QAM");
813 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
814 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
816 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
817 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
818 PRINT("DCM-MAX-CONST-RX-NO-DCM");
820 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
821 PRINT("DCM-MAX-CONST-RX-BPSK");
823 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
824 PRINT("DCM-MAX-CONST-RX-QPSK");
826 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
827 PRINT("DCM-MAX-CONST-RX-16-QAM");
831 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
832 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
833 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
834 "RX-HE-MU-PPDU-FROM-NON-AP-STA");
835 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
837 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
838 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
840 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
841 "BEAMFORMEE-MAX-STS-UNDER-%d");
842 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
843 "BEAMFORMEE-MAX-STS-ABOVE-%d");
845 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
846 "NUM-SND-DIM-UNDER-80MHZ-%d");
847 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
848 "NUM-SND-DIM-ABOVE-80MHZ-%d");
849 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
850 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
852 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
853 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
854 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
855 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
856 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
857 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
858 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
859 "PARTIAL-BANDWIDTH-DL-MUMIMO");
860 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
862 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
863 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
864 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
865 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
866 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
867 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
868 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
870 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
871 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
872 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
873 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
874 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
875 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
876 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
877 "HE-ER-SU-1XLTF-AND-08-US-GI");
878 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
879 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
881 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
882 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
883 PRINT("DCM-MAX-RU-242");
885 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
886 PRINT("DCM-MAX-RU-484");
888 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
889 PRINT("DCM-MAX-RU-996");
891 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
892 PRINT("DCM-MAX-RU-2x996");
896 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
897 "LONGER-THAN-16-SIGB-OFDM-SYM");
898 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
899 "NON-TRIGGERED-CQI-FEEDBACK");
900 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
901 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
902 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
903 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
904 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
905 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
906 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
907 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
909 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
910 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
911 PRINT("NOMINAL-PACKET-PADDING-0US");
913 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
914 PRINT("NOMINAL-PACKET-PADDING-8US");
916 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
917 PRINT("NOMINAL-PACKET-PADDING-16US");
921 #undef PFLAG_RANGE_DEFAULT
925 #define PRINT_NSS_SUPP(f, n) \
928 u16 v = le16_to_cpu(nss->f); \
929 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
930 for (_i = 0; _i < 8; _i += 2) { \
931 switch ((v >> _i) & 0x3) { \
933 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
936 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
939 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
942 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
948 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
949 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
951 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
952 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
953 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
957 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
958 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
959 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
962 #undef PRINT_NSS_SUPP
965 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
968 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
971 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
972 for (i = 1; i < ppe_size; i++) {
973 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
976 p += scnprintf(p, buf_sz + buf - p, "\n");
979 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
985 #define DEBUGFS_ADD(name) \
986 debugfs_create_file(#name, 0400, \
987 sta->debugfs_dir, sta, &sta_ ##name## _ops);
989 #define DEBUGFS_ADD_COUNTER(name, field) \
990 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
992 void ieee80211_sta_debugfs_add(struct sta_info *sta)
994 struct ieee80211_local *local = sta->local;
995 struct ieee80211_sub_if_data *sdata = sta->sdata;
996 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1002 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1005 * This might fail due to a race condition:
1006 * When mac80211 unlinks a station, the debugfs entries
1007 * remain, but it is already possible to link a new
1008 * station with the same address which triggers adding
1009 * it to debugfs; therefore, if the old station isn't
1010 * destroyed quickly enough the old station's debugfs
1011 * dir might still be around.
1013 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1017 DEBUGFS_ADD(num_ps_buf_frames);
1018 DEBUGFS_ADD(last_seq_ctrl);
1019 DEBUGFS_ADD(agg_status);
1020 DEBUGFS_ADD(ht_capa);
1021 DEBUGFS_ADD(vht_capa);
1022 DEBUGFS_ADD(he_capa);
1024 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1025 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1026 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1028 if (local->ops->wake_tx_queue)
1031 if (wiphy_ext_feature_isset(local->hw.wiphy,
1032 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
1033 DEBUGFS_ADD(airtime);
1035 if (wiphy_ext_feature_isset(local->hw.wiphy,
1036 NL80211_EXT_FEATURE_AQL))
1039 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1040 &sta->driver_buffered_tids);
1042 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1045 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1047 debugfs_remove_recursive(sta->debugfs_dir);
1048 sta->debugfs_dir = NULL;