tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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 - 2022 Intel Corporation
9 */
10
11#include <linux/debugfs.h>
12#include <linux/ieee80211.h>
13#include "ieee80211_i.h"
14#include "debugfs.h"
15#include "debugfs_sta.h"
16#include "sta_info.h"
17#include "driver-ops.h"
18
19/* sta attributtes */
20
21#define STA_READ(name, field, format_string) \
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 file_operations sta_ ##name## _ops = { \
34 .read = sta_##name##_read, \
35 .open = simple_open, \
36 .llseek = generic_file_llseek, \
37}
38
39#define STA_OPS_RW(name) \
40static const struct file_operations sta_ ##name## _ops = { \
41 .read = sta_##name##_read, \
42 .write = sta_##name##_write, \
43 .open = simple_open, \
44 .llseek = generic_file_llseek, \
45}
46
47#define STA_FILE(name, field, format) \
48 STA_READ_##format(name, field) \
49 STA_OPS(name)
50
51STA_FILE(aid, sta.aid, D);
52
53static const char * const sta_flag_names[] = {
54#define FLAG(F) [WLAN_STA_##F] = #F
55 FLAG(AUTH),
56 FLAG(ASSOC),
57 FLAG(PS_STA),
58 FLAG(AUTHORIZED),
59 FLAG(SHORT_PREAMBLE),
60 FLAG(WDS),
61 FLAG(CLEAR_PS_FILT),
62 FLAG(MFP),
63 FLAG(BLOCK_BA),
64 FLAG(PS_DRIVER),
65 FLAG(PSPOLL),
66 FLAG(TDLS_PEER),
67 FLAG(TDLS_PEER_AUTH),
68 FLAG(TDLS_INITIATOR),
69 FLAG(TDLS_CHAN_SWITCH),
70 FLAG(TDLS_OFF_CHANNEL),
71 FLAG(TDLS_WIDER_BW),
72 FLAG(UAPSD),
73 FLAG(SP),
74 FLAG(4ADDR_EVENT),
75 FLAG(INSERTED),
76 FLAG(RATE_CONTROL),
77 FLAG(TOFFSET_KNOWN),
78 FLAG(MPSP_OWNER),
79 FLAG(MPSP_RECIPIENT),
80 FLAG(PS_DELIVER),
81 FLAG(USES_ENCRYPTION),
82 FLAG(DECAP_OFFLOAD),
83#undef FLAG
84};
85
86static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
87 size_t count, loff_t *ppos)
88{
89 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
90 char *end = buf + sizeof(buf) - 1;
91 struct sta_info *sta = file->private_data;
92 unsigned int flg;
93
94 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
95
96 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
97 if (test_sta_flag(sta, flg))
98 pos += scnprintf(pos, end - pos, "%s\n",
99 sta_flag_names[flg]);
100 }
101
102 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
103}
104STA_OPS(flags);
105
106static ssize_t sta_num_ps_buf_frames_read(struct file *file,
107 char __user *userbuf,
108 size_t count, loff_t *ppos)
109{
110 struct sta_info *sta = file->private_data;
111 char buf[17*IEEE80211_NUM_ACS], *p = buf;
112 int ac;
113
114 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
115 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
116 skb_queue_len(&sta->ps_tx_buf[ac]) +
117 skb_queue_len(&sta->tx_filtered[ac]));
118 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
119}
120STA_OPS(num_ps_buf_frames);
121
122static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
123 size_t count, loff_t *ppos)
124{
125 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
126 int i;
127 struct sta_info *sta = file->private_data;
128 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
129 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
130 le16_to_cpu(sta->last_seq_ctrl[i]));
131 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
132 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
133}
134STA_OPS(last_seq_ctrl);
135
136#define AQM_TXQ_ENTRY_LEN 130
137
138static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
139 size_t count, loff_t *ppos)
140{
141 struct sta_info *sta = file->private_data;
142 struct ieee80211_local *local = sta->local;
143 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
144 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
145 struct txq_info *txqi;
146 ssize_t rv;
147 int i;
148
149 if (!buf)
150 return -ENOMEM;
151
152 spin_lock_bh(&local->fq.lock);
153 rcu_read_lock();
154
155 p += scnprintf(p,
156 bufsz + buf - p,
157 "target %uus interval %uus ecn %s\n",
158 codel_time_to_us(sta->cparams.target),
159 codel_time_to_us(sta->cparams.interval),
160 sta->cparams.ecn ? "yes" : "no");
161 p += scnprintf(p,
162 bufsz + buf - p,
163 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
164
165 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
166 if (!sta->sta.txq[i])
167 continue;
168 txqi = to_txq_info(sta->sta.txq[i]);
169 p += scnprintf(p, bufsz + buf - p,
170 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
171 txqi->txq.tid,
172 txqi->txq.ac,
173 txqi->tin.backlog_bytes,
174 txqi->tin.backlog_packets,
175 txqi->tin.flows,
176 txqi->cstats.drop_count,
177 txqi->cstats.ecn_mark,
178 txqi->tin.overlimit,
179 txqi->tin.collisions,
180 txqi->tin.tx_bytes,
181 txqi->tin.tx_packets,
182 txqi->flags,
183 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
184 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
185 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
186 }
187
188 rcu_read_unlock();
189 spin_unlock_bh(&local->fq.lock);
190
191 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
192 kfree(buf);
193 return rv;
194}
195STA_OPS(aqm);
196
197static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
198 size_t count, loff_t *ppos)
199{
200 struct sta_info *sta = file->private_data;
201 struct ieee80211_local *local = sta->sdata->local;
202 size_t bufsz = 400;
203 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
204 u64 rx_airtime = 0, tx_airtime = 0;
205 s32 deficit[IEEE80211_NUM_ACS];
206 ssize_t rv;
207 int ac;
208
209 if (!buf)
210 return -ENOMEM;
211
212 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
213 spin_lock_bh(&local->active_txq_lock[ac]);
214 rx_airtime += sta->airtime[ac].rx_airtime;
215 tx_airtime += sta->airtime[ac].tx_airtime;
216 deficit[ac] = sta->airtime[ac].deficit;
217 spin_unlock_bh(&local->active_txq_lock[ac]);
218 }
219
220 p += scnprintf(p, bufsz + buf - p,
221 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
222 "Deficit: VO: %d us VI: %d us BE: %d us BK: %d us\n",
223 rx_airtime, tx_airtime, sta->airtime_weight,
224 deficit[0], deficit[1], deficit[2], deficit[3]);
225
226 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
227 kfree(buf);
228 return rv;
229}
230
231static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
232 size_t count, loff_t *ppos)
233{
234 struct sta_info *sta = file->private_data;
235 struct ieee80211_local *local = sta->sdata->local;
236 int ac;
237
238 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
239 spin_lock_bh(&local->active_txq_lock[ac]);
240 sta->airtime[ac].rx_airtime = 0;
241 sta->airtime[ac].tx_airtime = 0;
242 sta->airtime[ac].deficit = sta->airtime_weight;
243 spin_unlock_bh(&local->active_txq_lock[ac]);
244 }
245
246 return count;
247}
248STA_OPS_RW(airtime);
249
250static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
251 size_t count, loff_t *ppos)
252{
253 struct sta_info *sta = file->private_data;
254 struct ieee80211_local *local = sta->sdata->local;
255 size_t bufsz = 400;
256 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
257 u32 q_depth[IEEE80211_NUM_ACS];
258 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
259 ssize_t rv;
260 int ac;
261
262 if (!buf)
263 return -ENOMEM;
264
265 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
266 spin_lock_bh(&local->active_txq_lock[ac]);
267 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
268 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
269 spin_unlock_bh(&local->active_txq_lock[ac]);
270 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
271 }
272
273 p += scnprintf(p, bufsz + buf - p,
274 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
275 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
276 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
277 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
278 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
279
280 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
281 kfree(buf);
282 return rv;
283}
284
285static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
286 size_t count, loff_t *ppos)
287{
288 struct sta_info *sta = file->private_data;
289 u32 ac, q_limit_l, q_limit_h;
290 char _buf[100] = {}, *buf = _buf;
291
292 if (count > sizeof(_buf))
293 return -EINVAL;
294
295 if (copy_from_user(buf, userbuf, count))
296 return -EFAULT;
297
298 buf[sizeof(_buf) - 1] = '\0';
299 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
300 != 3)
301 return -EINVAL;
302
303 if (ac >= IEEE80211_NUM_ACS)
304 return -EINVAL;
305
306 sta->airtime[ac].aql_limit_low = q_limit_l;
307 sta->airtime[ac].aql_limit_high = q_limit_h;
308
309 return count;
310}
311STA_OPS_RW(aql);
312
313
314static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
315 size_t count, loff_t *ppos)
316{
317 char *buf, *p;
318 ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
319 int i;
320 struct sta_info *sta = file->private_data;
321 struct tid_ampdu_rx *tid_rx;
322 struct tid_ampdu_tx *tid_tx;
323 ssize_t ret;
324
325 buf = kzalloc(bufsz, GFP_KERNEL);
326 if (!buf)
327 return -ENOMEM;
328 p = buf;
329
330 rcu_read_lock();
331
332 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
333 sta->ampdu_mlme.dialog_token_allocator + 1);
334 p += scnprintf(p, bufsz + buf - p,
335 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
336
337 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
338 bool tid_rx_valid;
339
340 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
341 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
342 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
343
344 p += scnprintf(p, bufsz + buf - p, "%02d", i);
345 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
346 tid_rx_valid);
347 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
348 tid_rx_valid ?
349 sta->ampdu_mlme.tid_rx_token[i] : 0);
350 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
351 tid_rx ? tid_rx->ssn : 0);
352
353 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
354 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
355 tid_tx ? tid_tx->dialog_token : 0);
356 p += scnprintf(p, bufsz + buf - p, "\t%03d",
357 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
358 p += scnprintf(p, bufsz + buf - p, "\n");
359 }
360 rcu_read_unlock();
361
362 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
363 kfree(buf);
364 return ret;
365}
366
367static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
368 size_t count, loff_t *ppos)
369{
370 char _buf[25] = {}, *buf = _buf;
371 struct sta_info *sta = file->private_data;
372 bool start, tx;
373 unsigned long tid;
374 char *pos;
375 int ret, timeout = 5000;
376
377 if (count > sizeof(_buf))
378 return -EINVAL;
379
380 if (copy_from_user(buf, userbuf, count))
381 return -EFAULT;
382
383 buf[sizeof(_buf) - 1] = '\0';
384 pos = buf;
385 buf = strsep(&pos, " ");
386 if (!buf)
387 return -EINVAL;
388
389 if (!strcmp(buf, "tx"))
390 tx = true;
391 else if (!strcmp(buf, "rx"))
392 tx = false;
393 else
394 return -EINVAL;
395
396 buf = strsep(&pos, " ");
397 if (!buf)
398 return -EINVAL;
399 if (!strcmp(buf, "start")) {
400 start = true;
401 if (!tx)
402 return -EINVAL;
403 } else if (!strcmp(buf, "stop")) {
404 start = false;
405 } else {
406 return -EINVAL;
407 }
408
409 buf = strsep(&pos, " ");
410 if (!buf)
411 return -EINVAL;
412 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
413 buf = strsep(&pos, " ");
414 if (!buf || !tx || !start)
415 return -EINVAL;
416 }
417
418 ret = kstrtoul(buf, 0, &tid);
419 if (ret || tid >= IEEE80211_NUM_TIDS)
420 return -EINVAL;
421
422 if (tx) {
423 if (start)
424 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
425 timeout);
426 else
427 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
428 } else {
429 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
430 3, true);
431 ret = 0;
432 }
433
434 return ret ?: count;
435}
436STA_OPS_RW(agg_status);
437
438/* link sta attributes */
439#define LINK_STA_OPS(name) \
440static const struct file_operations link_sta_ ##name## _ops = { \
441 .read = link_sta_##name##_read, \
442 .open = simple_open, \
443 .llseek = generic_file_llseek, \
444}
445
446static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
447 size_t count, loff_t *ppos)
448{
449 struct link_sta_info *link_sta = file->private_data;
450 u8 mac[3 * ETH_ALEN + 1];
451
452 snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
453
454 return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN);
455}
456
457LINK_STA_OPS(addr);
458
459static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
460 size_t count, loff_t *ppos)
461{
462#define PRINT_HT_CAP(_cond, _str) \
463 do { \
464 if (_cond) \
465 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
466 } while (0)
467 char *buf, *p;
468 int i;
469 ssize_t bufsz = 512;
470 struct link_sta_info *link_sta = file->private_data;
471 struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
472 ssize_t ret;
473
474 buf = kzalloc(bufsz, GFP_KERNEL);
475 if (!buf)
476 return -ENOMEM;
477 p = buf;
478
479 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
480 htc->ht_supported ? "" : "not ");
481 if (htc->ht_supported) {
482 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
483
484 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
485 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
486 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
487
488 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
489 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
490 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
491
492 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
493 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
494 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
495 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
496
497 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
498 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
499 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
500 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
501
502 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
503
504 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
505 "3839 bytes");
506 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
507 "7935 bytes");
508
509 /*
510 * For beacons and probe response this would mean the BSS
511 * does or does not allow the usage of DSSS/CCK HT40.
512 * Otherwise it means the STA does or does not use
513 * DSSS/CCK HT40.
514 */
515 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
516 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
517
518 /* BIT(13) is reserved */
519
520 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
521
522 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
523
524 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
525 htc->ampdu_factor, htc->ampdu_density);
526 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
527
528 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
529 p += scnprintf(p, bufsz + buf - p, " %.2x",
530 htc->mcs.rx_mask[i]);
531 p += scnprintf(p, bufsz + buf - p, "\n");
532
533 /* If not set this is meaningless */
534 if (le16_to_cpu(htc->mcs.rx_highest)) {
535 p += scnprintf(p, bufsz + buf - p,
536 "MCS rx highest: %d Mbps\n",
537 le16_to_cpu(htc->mcs.rx_highest));
538 }
539
540 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
541 htc->mcs.tx_params);
542 }
543
544 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
545 kfree(buf);
546 return ret;
547}
548LINK_STA_OPS(ht_capa);
549
550static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
551 size_t count, loff_t *ppos)
552{
553 char *buf, *p;
554 struct link_sta_info *link_sta = file->private_data;
555 struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
556 ssize_t ret;
557 ssize_t bufsz = 512;
558
559 buf = kzalloc(bufsz, GFP_KERNEL);
560 if (!buf)
561 return -ENOMEM;
562 p = buf;
563
564 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
565 vhtc->vht_supported ? "" : "not ");
566 if (vhtc->vht_supported) {
567 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
568 vhtc->cap);
569#define PFLAG(a, b) \
570 do { \
571 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
572 p += scnprintf(p, bufsz + buf - p, \
573 "\t\t%s\n", b); \
574 } while (0)
575
576 switch (vhtc->cap & 0x3) {
577 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
578 p += scnprintf(p, bufsz + buf - p,
579 "\t\tMAX-MPDU-3895\n");
580 break;
581 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
582 p += scnprintf(p, bufsz + buf - p,
583 "\t\tMAX-MPDU-7991\n");
584 break;
585 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
586 p += scnprintf(p, bufsz + buf - p,
587 "\t\tMAX-MPDU-11454\n");
588 break;
589 default:
590 p += scnprintf(p, bufsz + buf - p,
591 "\t\tMAX-MPDU-UNKNOWN\n");
592 }
593 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
594 case 0:
595 p += scnprintf(p, bufsz + buf - p,
596 "\t\t80Mhz\n");
597 break;
598 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
599 p += scnprintf(p, bufsz + buf - p,
600 "\t\t160Mhz\n");
601 break;
602 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
603 p += scnprintf(p, bufsz + buf - p,
604 "\t\t80+80Mhz\n");
605 break;
606 default:
607 p += scnprintf(p, bufsz + buf - p,
608 "\t\tUNKNOWN-MHZ: 0x%x\n",
609 (vhtc->cap >> 2) & 0x3);
610 }
611 PFLAG(RXLDPC, "RXLDPC");
612 PFLAG(SHORT_GI_80, "SHORT-GI-80");
613 PFLAG(SHORT_GI_160, "SHORT-GI-160");
614 PFLAG(TXSTBC, "TXSTBC");
615 p += scnprintf(p, bufsz + buf - p,
616 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
617 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
618 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
619 p += scnprintf(p, bufsz + buf - p,
620 "\t\tBEAMFORMEE-STS: 0x%x\n",
621 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
622 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
623 p += scnprintf(p, bufsz + buf - p,
624 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
625 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
626 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
627 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
628 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
629 PFLAG(VHT_TXOP_PS, "TXOP-PS");
630 PFLAG(HTC_VHT, "HTC-VHT");
631 p += scnprintf(p, bufsz + buf - p,
632 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
633 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
634 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
635 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
636 "LINK-ADAPTATION-VHT-UNSOL-MFB");
637 p += scnprintf(p, bufsz + buf - p,
638 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
639 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
640 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
641 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
642
643 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
644 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
645 if (vhtc->vht_mcs.rx_highest)
646 p += scnprintf(p, bufsz + buf - p,
647 "MCS RX highest: %d Mbps\n",
648 le16_to_cpu(vhtc->vht_mcs.rx_highest));
649 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
650 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
651 if (vhtc->vht_mcs.tx_highest)
652 p += scnprintf(p, bufsz + buf - p,
653 "MCS TX highest: %d Mbps\n",
654 le16_to_cpu(vhtc->vht_mcs.tx_highest));
655#undef PFLAG
656 }
657
658 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
659 kfree(buf);
660 return ret;
661}
662LINK_STA_OPS(vht_capa);
663
664static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
665 size_t count, loff_t *ppos)
666{
667 char *buf, *p;
668 size_t buf_sz = PAGE_SIZE;
669 struct link_sta_info *link_sta = file->private_data;
670 struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
671 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
672 u8 ppe_size;
673 u8 *cap;
674 int i;
675 ssize_t ret;
676
677 buf = kmalloc(buf_sz, GFP_KERNEL);
678 if (!buf)
679 return -ENOMEM;
680 p = buf;
681
682 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
683 hec->has_he ? "" : "not ");
684 if (!hec->has_he)
685 goto out;
686
687 cap = hec->he_cap_elem.mac_cap_info;
688 p += scnprintf(p, buf_sz + buf - p,
689 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
690 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
691
692#define PRINT(fmt, ...) \
693 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
694 ##__VA_ARGS__)
695
696#define PFLAG(t, n, a, b) \
697 do { \
698 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
699 PRINT("%s", b); \
700 } while (0)
701
702#define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
703 do { \
704 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
705 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
706 PRINT(fmt, (s << idx) + (m * idx)); \
707 } while (0)
708
709#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
710 do { \
711 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
712 PRINT("%s", b); \
713 break; \
714 } \
715 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
716 } while (0)
717
718 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
719 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
720 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
721 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
722 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
723 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
724 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
725
726 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
727 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
728 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
729 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
730 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
731 "MULTI-TID-AGG-RX-QOS-%d");
732
733 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
734 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
735 case 0:
736 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
737 break;
738 case 1:
739 PRINT("LINK-ADAPTATION-RESERVED");
740 break;
741 case 2:
742 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
743 break;
744 case 3:
745 PRINT("LINK-ADAPTATION-BOTH");
746 break;
747 }
748 }
749
750 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
751 PFLAG(MAC, 2, TRS, "TRS");
752 PFLAG(MAC, 2, BSR, "BSR");
753 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
754 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
755 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
756 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
757
758 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
759 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
760
761 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
762 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
763 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
764 break;
765 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
766 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
767 break;
768 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
769 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
770 break;
771 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
772 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
773 break;
774 }
775
776 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
777 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
778 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
779
780 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
781 PFLAG(MAC, 4, QTP, "QTP");
782 PFLAG(MAC, 4, BQR, "BQR");
783 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
784 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
785 PFLAG(MAC, 4, OPS, "OPS");
786 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
787
788 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
789
790 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
791 "SUBCHAN-SELECTIVE-TRANSMISSION");
792 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
793 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
794 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
795 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
796 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
797
798 cap = hec->he_cap_elem.phy_cap_info;
799 p += scnprintf(p, buf_sz + buf - p,
800 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
801 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
802 cap[7], cap[8], cap[9], cap[10]);
803
804 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
805 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
806 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
807 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
808 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
809 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
810 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
811 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
812 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
813 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
814 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
815 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
816
817 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
818 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
819 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
820 break;
821 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
822 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
823 break;
824 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
825 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
826 break;
827 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
828 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
829 break;
830 }
831
832 PFLAG(PHY, 1, DEVICE_CLASS_A,
833 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
834 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
835 "LDPC-CODING-IN-PAYLOAD");
836 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
837 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
838 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
839
840 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
841 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
842 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
843 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
844 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
845 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
846 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
847
848 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
849 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
850 PRINT("DCM-MAX-CONST-TX-NO-DCM");
851 break;
852 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
853 PRINT("DCM-MAX-CONST-TX-BPSK");
854 break;
855 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
856 PRINT("DCM-MAX-CONST-TX-QPSK");
857 break;
858 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
859 PRINT("DCM-MAX-CONST-TX-16-QAM");
860 break;
861 }
862
863 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
864 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
865
866 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
867 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
868 PRINT("DCM-MAX-CONST-RX-NO-DCM");
869 break;
870 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
871 PRINT("DCM-MAX-CONST-RX-BPSK");
872 break;
873 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
874 PRINT("DCM-MAX-CONST-RX-QPSK");
875 break;
876 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
877 PRINT("DCM-MAX-CONST-RX-16-QAM");
878 break;
879 }
880
881 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
882 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
883 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
884 "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
885 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
886
887 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
888 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
889
890 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
891 "BEAMFORMEE-MAX-STS-UNDER-%d");
892 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
893 "BEAMFORMEE-MAX-STS-ABOVE-%d");
894
895 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
896 "NUM-SND-DIM-UNDER-80MHZ-%d");
897 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
898 "NUM-SND-DIM-ABOVE-80MHZ-%d");
899 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
900 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
901
902 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
903 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
904 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
905 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
906 "MU-BEAMFORMING-PARTIAL-BW-FB");
907 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
908 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
909 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
910 "PARTIAL-BANDWIDTH-DL-MUMIMO");
911 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
912
913 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
914 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
915 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
916 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
917 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
918 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
919 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
920
921 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
922 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
923 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
924 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
925 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
926 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
927 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
928 "HE-ER-SU-1XLTF-AND-08-US-GI");
929 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
930 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
931
932 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
933 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
934 PRINT("DCM-MAX-RU-242");
935 break;
936 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
937 PRINT("DCM-MAX-RU-484");
938 break;
939 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
940 PRINT("DCM-MAX-RU-996");
941 break;
942 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
943 PRINT("DCM-MAX-RU-2x996");
944 break;
945 }
946
947 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
948 "LONGER-THAN-16-SIGB-OFDM-SYM");
949 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
950 "NON-TRIGGERED-CQI-FEEDBACK");
951 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
952 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
953 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
954 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
955 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
956 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
957 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
958 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
959
960 switch (u8_get_bits(cap[9],
961 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
962 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
963 PRINT("NOMINAL-PACKET-PADDING-0US");
964 break;
965 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
966 PRINT("NOMINAL-PACKET-PADDING-8US");
967 break;
968 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
969 PRINT("NOMINAL-PACKET-PADDING-16US");
970 break;
971 }
972
973#undef PFLAG_RANGE_DEFAULT
974#undef PFLAG_RANGE
975#undef PFLAG
976
977#define PRINT_NSS_SUPP(f, n) \
978 do { \
979 int _i; \
980 u16 v = le16_to_cpu(nss->f); \
981 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
982 for (_i = 0; _i < 8; _i += 2) { \
983 switch ((v >> _i) & 0x3) { \
984 case 0: \
985 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
986 break; \
987 case 1: \
988 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
989 break; \
990 case 2: \
991 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
992 break; \
993 case 3: \
994 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
995 break; \
996 } \
997 } \
998 } while (0)
999
1000 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1001 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1002
1003 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1004 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1005 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1006 }
1007
1008 if (cap[0] &
1009 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1010 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1011 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1012 }
1013
1014#undef PRINT_NSS_SUPP
1015#undef PRINT
1016
1017 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1018 goto out;
1019
1020 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1021 hec->ppe_thres[0]);
1022
1023 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1024 for (i = 1; i < ppe_size; i++) {
1025 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1026 hec->ppe_thres[i]);
1027 }
1028 p += scnprintf(p, buf_sz + buf - p, "\n");
1029
1030out:
1031 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1032 kfree(buf);
1033 return ret;
1034}
1035LINK_STA_OPS(he_capa);
1036
1037#define DEBUGFS_ADD(name) \
1038 debugfs_create_file(#name, 0400, \
1039 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1040
1041#define DEBUGFS_ADD_COUNTER(name, field) \
1042 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1043
1044void ieee80211_sta_debugfs_add(struct sta_info *sta)
1045{
1046 struct ieee80211_local *local = sta->local;
1047 struct ieee80211_sub_if_data *sdata = sta->sdata;
1048 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1049 u8 mac[3*ETH_ALEN];
1050
1051 if (!stations_dir)
1052 return;
1053
1054 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1055
1056 /*
1057 * This might fail due to a race condition:
1058 * When mac80211 unlinks a station, the debugfs entries
1059 * remain, but it is already possible to link a new
1060 * station with the same address which triggers adding
1061 * it to debugfs; therefore, if the old station isn't
1062 * destroyed quickly enough the old station's debugfs
1063 * dir might still be around.
1064 */
1065 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1066
1067 DEBUGFS_ADD(flags);
1068 DEBUGFS_ADD(aid);
1069 DEBUGFS_ADD(num_ps_buf_frames);
1070 DEBUGFS_ADD(last_seq_ctrl);
1071 DEBUGFS_ADD(agg_status);
1072 /* FIXME: Kept here as the statistics are only done on the deflink */
1073 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1074
1075 DEBUGFS_ADD(aqm);
1076 DEBUGFS_ADD(airtime);
1077
1078 if (wiphy_ext_feature_isset(local->hw.wiphy,
1079 NL80211_EXT_FEATURE_AQL))
1080 DEBUGFS_ADD(aql);
1081
1082 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1083 &sta->driver_buffered_tids);
1084
1085 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1086}
1087
1088void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1089{
1090 debugfs_remove_recursive(sta->debugfs_dir);
1091 sta->debugfs_dir = NULL;
1092}
1093
1094#undef DEBUGFS_ADD
1095#undef DEBUGFS_ADD_COUNTER
1096
1097#define DEBUGFS_ADD(name) \
1098 debugfs_create_file(#name, 0400, \
1099 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1100#define DEBUGFS_ADD_COUNTER(name, field) \
1101 debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1102
1103void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1104{
1105 if (WARN_ON(!link_sta->sta->debugfs_dir))
1106 return;
1107
1108 /* For non-MLO, leave the files in the main directory. */
1109 if (link_sta->sta->sta.valid_links) {
1110 char link_dir_name[10];
1111
1112 snprintf(link_dir_name, sizeof(link_dir_name),
1113 "link-%d", link_sta->link_id);
1114
1115 link_sta->debugfs_dir =
1116 debugfs_create_dir(link_dir_name,
1117 link_sta->sta->debugfs_dir);
1118
1119 DEBUGFS_ADD(addr);
1120 } else {
1121 if (WARN_ON(link_sta != &link_sta->sta->deflink))
1122 return;
1123
1124 link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1125 }
1126
1127 DEBUGFS_ADD(ht_capa);
1128 DEBUGFS_ADD(vht_capa);
1129 DEBUGFS_ADD(he_capa);
1130
1131 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1132 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1133}
1134
1135void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1136{
1137 if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1138 link_sta->debugfs_dir = NULL;
1139 return;
1140 }
1141
1142 if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1143 WARN_ON(link_sta != &link_sta->sta->deflink);
1144 link_sta->sta->debugfs_dir = NULL;
1145 return;
1146 }
1147
1148 debugfs_remove_recursive(link_sta->debugfs_dir);
1149 link_sta->debugfs_dir = NULL;
1150}
1151
1152void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1153{
1154 if (WARN_ON(!link_sta->debugfs_dir))
1155 return;
1156
1157 drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1158 link_sta->pub, link_sta->debugfs_dir);
1159}
1160
1161void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1162{
1163 if (!link_sta->debugfs_dir)
1164 return;
1165
1166 if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1167 return;
1168
1169 /* Recreate the directory excluding the driver data */
1170 debugfs_remove_recursive(link_sta->debugfs_dir);
1171 link_sta->debugfs_dir = NULL;
1172
1173 ieee80211_link_sta_debugfs_add(link_sta);
1174}