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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2003-2005 Devicescape Software, Inc.
4 * Copyright (c) 2006 Jiri Benc <[email protected]>
5 * Copyright 2007 Johannes Berg <[email protected]>
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}