Loading...
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 - 2020 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 u64 v_t[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->airtime[ac].lock);
214 rx_airtime += sta->airtime[ac].rx_airtime;
215 tx_airtime += sta->airtime[ac].tx_airtime;
216 v_t[ac] = sta->airtime[ac].v_t;
217 spin_unlock_bh(&local->airtime[ac].lock);
218 }
219
220 p += scnprintf(p, bufsz + buf - p,
221 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
222 "Virt-T: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
223 rx_airtime, tx_airtime, sta->airtime[0].weight,
224 v_t[0], v_t[1], v_t[2], v_t[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->airtime[ac].lock);
240 sta->airtime[ac].rx_airtime = 0;
241 sta->airtime[ac].tx_airtime = 0;
242 sta->airtime[ac].v_t = 0;
243 spin_unlock_bh(&local->airtime[ac].lock);
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->airtime[ac].lock);
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->airtime[ac].lock);
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[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
318 int i;
319 struct sta_info *sta = file->private_data;
320 struct tid_ampdu_rx *tid_rx;
321 struct tid_ampdu_tx *tid_tx;
322
323 rcu_read_lock();
324
325 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
326 sta->ampdu_mlme.dialog_token_allocator + 1);
327 p += scnprintf(p, sizeof(buf) + buf - p,
328 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
329
330 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
331 bool tid_rx_valid;
332
333 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
334 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
335 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
336
337 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
338 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
339 tid_rx_valid);
340 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
341 tid_rx_valid ?
342 sta->ampdu_mlme.tid_rx_token[i] : 0);
343 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
344 tid_rx ? tid_rx->ssn : 0);
345
346 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
347 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
348 tid_tx ? tid_tx->dialog_token : 0);
349 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
350 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
351 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
352 }
353 rcu_read_unlock();
354
355 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
356}
357
358static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
359 size_t count, loff_t *ppos)
360{
361 char _buf[25] = {}, *buf = _buf;
362 struct sta_info *sta = file->private_data;
363 bool start, tx;
364 unsigned long tid;
365 char *pos;
366 int ret, timeout = 5000;
367
368 if (count > sizeof(_buf))
369 return -EINVAL;
370
371 if (copy_from_user(buf, userbuf, count))
372 return -EFAULT;
373
374 buf[sizeof(_buf) - 1] = '\0';
375 pos = buf;
376 buf = strsep(&pos, " ");
377 if (!buf)
378 return -EINVAL;
379
380 if (!strcmp(buf, "tx"))
381 tx = true;
382 else if (!strcmp(buf, "rx"))
383 tx = false;
384 else
385 return -EINVAL;
386
387 buf = strsep(&pos, " ");
388 if (!buf)
389 return -EINVAL;
390 if (!strcmp(buf, "start")) {
391 start = true;
392 if (!tx)
393 return -EINVAL;
394 } else if (!strcmp(buf, "stop")) {
395 start = false;
396 } else {
397 return -EINVAL;
398 }
399
400 buf = strsep(&pos, " ");
401 if (!buf)
402 return -EINVAL;
403 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
404 buf = strsep(&pos, " ");
405 if (!buf || !tx || !start)
406 return -EINVAL;
407 }
408
409 ret = kstrtoul(buf, 0, &tid);
410 if (ret || tid >= IEEE80211_NUM_TIDS)
411 return -EINVAL;
412
413 if (tx) {
414 if (start)
415 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
416 timeout);
417 else
418 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
419 } else {
420 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
421 3, true);
422 ret = 0;
423 }
424
425 return ret ?: count;
426}
427STA_OPS_RW(agg_status);
428
429static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
430 size_t count, loff_t *ppos)
431{
432#define PRINT_HT_CAP(_cond, _str) \
433 do { \
434 if (_cond) \
435 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
436 } while (0)
437 char buf[512], *p = buf;
438 int i;
439 struct sta_info *sta = file->private_data;
440 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
441
442 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
443 htc->ht_supported ? "" : "not ");
444 if (htc->ht_supported) {
445 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
446
447 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
448 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
449 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
450
451 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
452 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
453 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
454
455 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
456 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
457 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
458 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
459
460 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
461 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
462 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
463 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
464
465 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
466
467 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
468 "3839 bytes");
469 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
470 "7935 bytes");
471
472 /*
473 * For beacons and probe response this would mean the BSS
474 * does or does not allow the usage of DSSS/CCK HT40.
475 * Otherwise it means the STA does or does not use
476 * DSSS/CCK HT40.
477 */
478 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
479 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
480
481 /* BIT(13) is reserved */
482
483 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
484
485 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
486
487 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
488 htc->ampdu_factor, htc->ampdu_density);
489 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
490
491 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
492 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
493 htc->mcs.rx_mask[i]);
494 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
495
496 /* If not set this is meaningless */
497 if (le16_to_cpu(htc->mcs.rx_highest)) {
498 p += scnprintf(p, sizeof(buf)+buf-p,
499 "MCS rx highest: %d Mbps\n",
500 le16_to_cpu(htc->mcs.rx_highest));
501 }
502
503 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
504 htc->mcs.tx_params);
505 }
506
507 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
508}
509STA_OPS(ht_capa);
510
511static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
512 size_t count, loff_t *ppos)
513{
514 char buf[512], *p = buf;
515 struct sta_info *sta = file->private_data;
516 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
517
518 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
519 vhtc->vht_supported ? "" : "not ");
520 if (vhtc->vht_supported) {
521 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
522 vhtc->cap);
523#define PFLAG(a, b) \
524 do { \
525 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
526 p += scnprintf(p, sizeof(buf) + buf - p, \
527 "\t\t%s\n", b); \
528 } while (0)
529
530 switch (vhtc->cap & 0x3) {
531 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
532 p += scnprintf(p, sizeof(buf) + buf - p,
533 "\t\tMAX-MPDU-3895\n");
534 break;
535 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
536 p += scnprintf(p, sizeof(buf) + buf - p,
537 "\t\tMAX-MPDU-7991\n");
538 break;
539 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
540 p += scnprintf(p, sizeof(buf) + buf - p,
541 "\t\tMAX-MPDU-11454\n");
542 break;
543 default:
544 p += scnprintf(p, sizeof(buf) + buf - p,
545 "\t\tMAX-MPDU-UNKNOWN\n");
546 }
547 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
548 case 0:
549 p += scnprintf(p, sizeof(buf) + buf - p,
550 "\t\t80Mhz\n");
551 break;
552 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
553 p += scnprintf(p, sizeof(buf) + buf - p,
554 "\t\t160Mhz\n");
555 break;
556 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
557 p += scnprintf(p, sizeof(buf) + buf - p,
558 "\t\t80+80Mhz\n");
559 break;
560 default:
561 p += scnprintf(p, sizeof(buf) + buf - p,
562 "\t\tUNKNOWN-MHZ: 0x%x\n",
563 (vhtc->cap >> 2) & 0x3);
564 }
565 PFLAG(RXLDPC, "RXLDPC");
566 PFLAG(SHORT_GI_80, "SHORT-GI-80");
567 PFLAG(SHORT_GI_160, "SHORT-GI-160");
568 PFLAG(TXSTBC, "TXSTBC");
569 p += scnprintf(p, sizeof(buf) + buf - p,
570 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
571 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
572 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
573 p += scnprintf(p, sizeof(buf) + buf - p,
574 "\t\tBEAMFORMEE-STS: 0x%x\n",
575 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
576 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
577 p += scnprintf(p, sizeof(buf) + buf - p,
578 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
579 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
580 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
581 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
582 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
583 PFLAG(VHT_TXOP_PS, "TXOP-PS");
584 PFLAG(HTC_VHT, "HTC-VHT");
585 p += scnprintf(p, sizeof(buf) + buf - p,
586 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
587 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
588 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
589 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
590 "LINK-ADAPTATION-VHT-UNSOL-MFB");
591 p += scnprintf(p, sizeof(buf) + buf - p,
592 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
593 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
594 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
595 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
596
597 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
598 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
599 if (vhtc->vht_mcs.rx_highest)
600 p += scnprintf(p, sizeof(buf)+buf-p,
601 "MCS RX highest: %d Mbps\n",
602 le16_to_cpu(vhtc->vht_mcs.rx_highest));
603 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
604 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
605 if (vhtc->vht_mcs.tx_highest)
606 p += scnprintf(p, sizeof(buf)+buf-p,
607 "MCS TX highest: %d Mbps\n",
608 le16_to_cpu(vhtc->vht_mcs.tx_highest));
609#undef PFLAG
610 }
611
612 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
613}
614STA_OPS(vht_capa);
615
616static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
617 size_t count, loff_t *ppos)
618{
619 char *buf, *p;
620 size_t buf_sz = PAGE_SIZE;
621 struct sta_info *sta = file->private_data;
622 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
623 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
624 u8 ppe_size;
625 u8 *cap;
626 int i;
627 ssize_t ret;
628
629 buf = kmalloc(buf_sz, GFP_KERNEL);
630 if (!buf)
631 return -ENOMEM;
632 p = buf;
633
634 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
635 hec->has_he ? "" : "not ");
636 if (!hec->has_he)
637 goto out;
638
639 cap = hec->he_cap_elem.mac_cap_info;
640 p += scnprintf(p, buf_sz + buf - p,
641 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
642 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
643
644#define PRINT(fmt, ...) \
645 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
646 ##__VA_ARGS__)
647
648#define PFLAG(t, n, a, b) \
649 do { \
650 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
651 PRINT("%s", b); \
652 } while (0)
653
654#define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
655 do { \
656 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
657 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
658 PRINT(fmt, (s << idx) + (m * idx)); \
659 } while (0)
660
661#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
662 do { \
663 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
664 PRINT("%s", b); \
665 break; \
666 } \
667 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
668 } while (0)
669
670 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
671 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
672 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
673 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
674 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
675 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
676 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
677
678 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
679 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
680 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
681 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
682 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
683 "MULTI-TID-AGG-RX-QOS-%d");
684
685 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
686 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
687 case 0:
688 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
689 break;
690 case 1:
691 PRINT("LINK-ADAPTATION-RESERVED");
692 break;
693 case 2:
694 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
695 break;
696 case 3:
697 PRINT("LINK-ADAPTATION-BOTH");
698 break;
699 }
700 }
701
702 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
703 PFLAG(MAC, 2, TRS, "TRS");
704 PFLAG(MAC, 2, BSR, "BSR");
705 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
706 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
707 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
708 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
709
710 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
711 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
712
713 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
714 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
715 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
716 break;
717 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
718 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
719 break;
720 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
721 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
722 break;
723 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
724 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
725 break;
726 }
727
728 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
729 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
730 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
731
732 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
733 PFLAG(MAC, 4, QTP, "QTP");
734 PFLAG(MAC, 4, BQR, "BQR");
735 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
736 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
737 PFLAG(MAC, 4, OPS, "OPS");
738 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
739
740 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
741
742 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
743 "SUBCHAN-SELECTIVE-TRANSMISSION");
744 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
745 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
746 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
747 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
748 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
749
750 cap = hec->he_cap_elem.phy_cap_info;
751 p += scnprintf(p, buf_sz + buf - p,
752 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
753 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
754 cap[7], cap[8], cap[9], cap[10]);
755
756 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
757 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
758 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
759 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
760 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
761 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
762 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
763 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
764 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
765 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
766 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
767 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
768
769 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
770 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
771 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
772 break;
773 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
774 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
775 break;
776 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
777 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
778 break;
779 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
780 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
781 break;
782 }
783
784 PFLAG(PHY, 1, DEVICE_CLASS_A,
785 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
786 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
787 "LDPC-CODING-IN-PAYLOAD");
788 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
789 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
790 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
791
792 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
793 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
794 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
795 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
796 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
797 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
798 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
799
800 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
801 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
802 PRINT("DCM-MAX-CONST-TX-NO-DCM");
803 break;
804 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
805 PRINT("DCM-MAX-CONST-TX-BPSK");
806 break;
807 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
808 PRINT("DCM-MAX-CONST-TX-QPSK");
809 break;
810 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
811 PRINT("DCM-MAX-CONST-TX-16-QAM");
812 break;
813 }
814
815 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
816 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
817
818 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
819 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
820 PRINT("DCM-MAX-CONST-RX-NO-DCM");
821 break;
822 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
823 PRINT("DCM-MAX-CONST-RX-BPSK");
824 break;
825 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
826 PRINT("DCM-MAX-CONST-RX-QPSK");
827 break;
828 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
829 PRINT("DCM-MAX-CONST-RX-16-QAM");
830 break;
831 }
832
833 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
834 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
835 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
836 "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
837 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
838
839 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
840 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
841
842 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
843 "BEAMFORMEE-MAX-STS-UNDER-%d");
844 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
845 "BEAMFORMEE-MAX-STS-ABOVE-%d");
846
847 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
848 "NUM-SND-DIM-UNDER-80MHZ-%d");
849 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
850 "NUM-SND-DIM-ABOVE-80MHZ-%d");
851 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
852 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
853
854 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
855 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
856 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
857 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
858 "MU-BEAMFORMING-PARTIAL-BW-FB");
859 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
860 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
861 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
862 "PARTIAL-BANDWIDTH-DL-MUMIMO");
863 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
864
865 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
866 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
867 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
868 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
869 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
870 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
871 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
872
873 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
874 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
875 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
876 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
877 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
878 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
879 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
880 "HE-ER-SU-1XLTF-AND-08-US-GI");
881 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
882 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
883
884 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
885 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
886 PRINT("DCM-MAX-RU-242");
887 break;
888 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
889 PRINT("DCM-MAX-RU-484");
890 break;
891 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
892 PRINT("DCM-MAX-RU-996");
893 break;
894 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
895 PRINT("DCM-MAX-RU-2x996");
896 break;
897 }
898
899 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
900 "LONGER-THAN-16-SIGB-OFDM-SYM");
901 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
902 "NON-TRIGGERED-CQI-FEEDBACK");
903 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
904 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
905 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
906 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
907 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
908 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
909 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
910 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
911
912 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
913 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
914 PRINT("NOMINAL-PACKET-PADDING-0US");
915 break;
916 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
917 PRINT("NOMINAL-PACKET-PADDING-8US");
918 break;
919 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
920 PRINT("NOMINAL-PACKET-PADDING-16US");
921 break;
922 }
923
924#undef PFLAG_RANGE_DEFAULT
925#undef PFLAG_RANGE
926#undef PFLAG
927
928#define PRINT_NSS_SUPP(f, n) \
929 do { \
930 int _i; \
931 u16 v = le16_to_cpu(nss->f); \
932 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
933 for (_i = 0; _i < 8; _i += 2) { \
934 switch ((v >> _i) & 0x3) { \
935 case 0: \
936 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
937 break; \
938 case 1: \
939 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
940 break; \
941 case 2: \
942 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
943 break; \
944 case 3: \
945 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
946 break; \
947 } \
948 } \
949 } while (0)
950
951 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
952 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
953
954 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
955 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
956 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
957 }
958
959 if (cap[0] &
960 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
961 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
962 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
963 }
964
965#undef PRINT_NSS_SUPP
966#undef PRINT
967
968 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
969 goto out;
970
971 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
972 hec->ppe_thres[0]);
973
974 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
975 for (i = 1; i < ppe_size; i++) {
976 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
977 hec->ppe_thres[i]);
978 }
979 p += scnprintf(p, buf_sz + buf - p, "\n");
980
981out:
982 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
983 kfree(buf);
984 return ret;
985}
986STA_OPS(he_capa);
987
988#define DEBUGFS_ADD(name) \
989 debugfs_create_file(#name, 0400, \
990 sta->debugfs_dir, sta, &sta_ ##name## _ops)
991
992#define DEBUGFS_ADD_COUNTER(name, field) \
993 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
994
995void ieee80211_sta_debugfs_add(struct sta_info *sta)
996{
997 struct ieee80211_local *local = sta->local;
998 struct ieee80211_sub_if_data *sdata = sta->sdata;
999 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1000 u8 mac[3*ETH_ALEN];
1001
1002 if (!stations_dir)
1003 return;
1004
1005 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1006
1007 /*
1008 * This might fail due to a race condition:
1009 * When mac80211 unlinks a station, the debugfs entries
1010 * remain, but it is already possible to link a new
1011 * station with the same address which triggers adding
1012 * it to debugfs; therefore, if the old station isn't
1013 * destroyed quickly enough the old station's debugfs
1014 * dir might still be around.
1015 */
1016 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1017
1018 DEBUGFS_ADD(flags);
1019 DEBUGFS_ADD(aid);
1020 DEBUGFS_ADD(num_ps_buf_frames);
1021 DEBUGFS_ADD(last_seq_ctrl);
1022 DEBUGFS_ADD(agg_status);
1023 DEBUGFS_ADD(ht_capa);
1024 DEBUGFS_ADD(vht_capa);
1025 DEBUGFS_ADD(he_capa);
1026
1027 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1028 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1029 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1030
1031 if (local->ops->wake_tx_queue) {
1032 DEBUGFS_ADD(aqm);
1033 DEBUGFS_ADD(airtime);
1034 }
1035
1036 if (wiphy_ext_feature_isset(local->hw.wiphy,
1037 NL80211_EXT_FEATURE_AQL))
1038 DEBUGFS_ADD(aql);
1039
1040 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1041 &sta->driver_buffered_tids);
1042
1043 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1044}
1045
1046void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1047{
1048 debugfs_remove_recursive(sta->debugfs_dir);
1049 sta->debugfs_dir = NULL;
1050}
1/*
2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/debugfs.h>
13#include <linux/ieee80211.h>
14#include "ieee80211_i.h"
15#include "debugfs.h"
16#include "debugfs_sta.h"
17#include "sta_info.h"
18#include "driver-ops.h"
19
20/* sta attributtes */
21
22#define STA_READ(name, field, format_string) \
23static ssize_t sta_ ##name## _read(struct file *file, \
24 char __user *userbuf, \
25 size_t count, loff_t *ppos) \
26{ \
27 struct sta_info *sta = file->private_data; \
28 return mac80211_format_buffer(userbuf, count, ppos, \
29 format_string, sta->field); \
30}
31#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
32
33#define STA_OPS(name) \
34static const struct file_operations sta_ ##name## _ops = { \
35 .read = sta_##name##_read, \
36 .open = simple_open, \
37 .llseek = generic_file_llseek, \
38}
39
40#define STA_OPS_RW(name) \
41static const struct file_operations sta_ ##name## _ops = { \
42 .read = sta_##name##_read, \
43 .write = sta_##name##_write, \
44 .open = simple_open, \
45 .llseek = generic_file_llseek, \
46}
47
48#define STA_FILE(name, field, format) \
49 STA_READ_##format(name, field) \
50 STA_OPS(name)
51
52STA_FILE(aid, sta.aid, D);
53
54static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
55 size_t count, loff_t *ppos)
56{
57 char buf[121];
58 struct sta_info *sta = file->private_data;
59
60#define TEST(flg) \
61 test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
62
63 int res = scnprintf(buf, sizeof(buf),
64 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
65 TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
66 TEST(PS_DRIVER), TEST(AUTHORIZED),
67 TEST(SHORT_PREAMBLE),
68 sta->sta.wme ? "WME\n" : "",
69 TEST(WDS), TEST(CLEAR_PS_FILT),
70 TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
71 TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
72 TEST(TDLS_PEER_AUTH), TEST(TDLS_INITIATOR),
73 TEST(TDLS_CHAN_SWITCH), TEST(TDLS_OFF_CHANNEL),
74 TEST(4ADDR_EVENT), TEST(INSERTED),
75 TEST(RATE_CONTROL), TEST(TOFFSET_KNOWN),
76 TEST(MPSP_OWNER), TEST(MPSP_RECIPIENT));
77#undef TEST
78 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
79}
80STA_OPS(flags);
81
82static ssize_t sta_num_ps_buf_frames_read(struct file *file,
83 char __user *userbuf,
84 size_t count, loff_t *ppos)
85{
86 struct sta_info *sta = file->private_data;
87 char buf[17*IEEE80211_NUM_ACS], *p = buf;
88 int ac;
89
90 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
91 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
92 skb_queue_len(&sta->ps_tx_buf[ac]) +
93 skb_queue_len(&sta->tx_filtered[ac]));
94 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
95}
96STA_OPS(num_ps_buf_frames);
97
98static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
99 size_t count, loff_t *ppos)
100{
101 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
102 int i;
103 struct sta_info *sta = file->private_data;
104 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
105 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
106 le16_to_cpu(sta->last_seq_ctrl[i]));
107 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
108 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
109}
110STA_OPS(last_seq_ctrl);
111
112static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
113 size_t count, loff_t *ppos)
114{
115 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
116 int i;
117 struct sta_info *sta = file->private_data;
118 struct tid_ampdu_rx *tid_rx;
119 struct tid_ampdu_tx *tid_tx;
120
121 rcu_read_lock();
122
123 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
124 sta->ampdu_mlme.dialog_token_allocator + 1);
125 p += scnprintf(p, sizeof(buf) + buf - p,
126 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
127
128 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
129 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
130 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
131
132 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
133 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
134 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
135 tid_rx ? tid_rx->dialog_token : 0);
136 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
137 tid_rx ? tid_rx->ssn : 0);
138
139 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
140 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
141 tid_tx ? tid_tx->dialog_token : 0);
142 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
143 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
144 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
145 }
146 rcu_read_unlock();
147
148 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
149}
150
151static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
152 size_t count, loff_t *ppos)
153{
154 char _buf[12] = {}, *buf = _buf;
155 struct sta_info *sta = file->private_data;
156 bool start, tx;
157 unsigned long tid;
158 int ret;
159
160 if (count > sizeof(_buf))
161 return -EINVAL;
162
163 if (copy_from_user(buf, userbuf, count))
164 return -EFAULT;
165
166 buf[sizeof(_buf) - 1] = '\0';
167
168 if (strncmp(buf, "tx ", 3) == 0) {
169 buf += 3;
170 tx = true;
171 } else if (strncmp(buf, "rx ", 3) == 0) {
172 buf += 3;
173 tx = false;
174 } else
175 return -EINVAL;
176
177 if (strncmp(buf, "start ", 6) == 0) {
178 buf += 6;
179 start = true;
180 if (!tx)
181 return -EINVAL;
182 } else if (strncmp(buf, "stop ", 5) == 0) {
183 buf += 5;
184 start = false;
185 } else
186 return -EINVAL;
187
188 ret = kstrtoul(buf, 0, &tid);
189 if (ret)
190 return ret;
191
192 if (tid >= IEEE80211_NUM_TIDS)
193 return -EINVAL;
194
195 if (tx) {
196 if (start)
197 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000);
198 else
199 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
200 } else {
201 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
202 3, true);
203 ret = 0;
204 }
205
206 return ret ?: count;
207}
208STA_OPS_RW(agg_status);
209
210static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
211 size_t count, loff_t *ppos)
212{
213#define PRINT_HT_CAP(_cond, _str) \
214 do { \
215 if (_cond) \
216 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
217 } while (0)
218 char buf[512], *p = buf;
219 int i;
220 struct sta_info *sta = file->private_data;
221 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
222
223 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
224 htc->ht_supported ? "" : "not ");
225 if (htc->ht_supported) {
226 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
227
228 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
229 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
230 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
231
232 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
233 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
234 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
235
236 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
237 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
238 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
239 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
240
241 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
242 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
243 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
244 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
245
246 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
247
248 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
249 "3839 bytes");
250 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
251 "7935 bytes");
252
253 /*
254 * For beacons and probe response this would mean the BSS
255 * does or does not allow the usage of DSSS/CCK HT40.
256 * Otherwise it means the STA does or does not use
257 * DSSS/CCK HT40.
258 */
259 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
260 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
261
262 /* BIT(13) is reserved */
263
264 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
265
266 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
267
268 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
269 htc->ampdu_factor, htc->ampdu_density);
270 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
271
272 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
273 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
274 htc->mcs.rx_mask[i]);
275 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
276
277 /* If not set this is meaningless */
278 if (le16_to_cpu(htc->mcs.rx_highest)) {
279 p += scnprintf(p, sizeof(buf)+buf-p,
280 "MCS rx highest: %d Mbps\n",
281 le16_to_cpu(htc->mcs.rx_highest));
282 }
283
284 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
285 htc->mcs.tx_params);
286 }
287
288 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
289}
290STA_OPS(ht_capa);
291
292static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
293 size_t count, loff_t *ppos)
294{
295 char buf[128], *p = buf;
296 struct sta_info *sta = file->private_data;
297 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
298
299 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
300 vhtc->vht_supported ? "" : "not ");
301 if (vhtc->vht_supported) {
302 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap);
303
304 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
305 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
306 if (vhtc->vht_mcs.rx_highest)
307 p += scnprintf(p, sizeof(buf)+buf-p,
308 "MCS RX highest: %d Mbps\n",
309 le16_to_cpu(vhtc->vht_mcs.rx_highest));
310 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
311 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
312 if (vhtc->vht_mcs.tx_highest)
313 p += scnprintf(p, sizeof(buf)+buf-p,
314 "MCS TX highest: %d Mbps\n",
315 le16_to_cpu(vhtc->vht_mcs.tx_highest));
316 }
317
318 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
319}
320STA_OPS(vht_capa);
321
322
323#define DEBUGFS_ADD(name) \
324 debugfs_create_file(#name, 0400, \
325 sta->debugfs.dir, sta, &sta_ ##name## _ops);
326
327#define DEBUGFS_ADD_COUNTER(name, field) \
328 if (sizeof(sta->field) == sizeof(u32)) \
329 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
330 (u32 *) &sta->field); \
331 else \
332 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
333 (u64 *) &sta->field);
334
335void ieee80211_sta_debugfs_add(struct sta_info *sta)
336{
337 struct ieee80211_local *local = sta->local;
338 struct ieee80211_sub_if_data *sdata = sta->sdata;
339 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
340 u8 mac[3*ETH_ALEN];
341
342 sta->debugfs.add_has_run = true;
343
344 if (!stations_dir)
345 return;
346
347 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
348
349 /*
350 * This might fail due to a race condition:
351 * When mac80211 unlinks a station, the debugfs entries
352 * remain, but it is already possible to link a new
353 * station with the same address which triggers adding
354 * it to debugfs; therefore, if the old station isn't
355 * destroyed quickly enough the old station's debugfs
356 * dir might still be around.
357 */
358 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
359 if (!sta->debugfs.dir)
360 return;
361
362 DEBUGFS_ADD(flags);
363 DEBUGFS_ADD(num_ps_buf_frames);
364 DEBUGFS_ADD(last_seq_ctrl);
365 DEBUGFS_ADD(agg_status);
366 DEBUGFS_ADD(ht_capa);
367 DEBUGFS_ADD(vht_capa);
368
369 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
370 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
371 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
372
373 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
374 debugfs_create_x32("driver_buffered_tids", 0400,
375 sta->debugfs.dir,
376 (u32 *)&sta->driver_buffered_tids);
377 else
378 debugfs_create_x64("driver_buffered_tids", 0400,
379 sta->debugfs.dir,
380 (u64 *)&sta->driver_buffered_tids);
381
382 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
383}
384
385void ieee80211_sta_debugfs_remove(struct sta_info *sta)
386{
387 struct ieee80211_local *local = sta->local;
388 struct ieee80211_sub_if_data *sdata = sta->sdata;
389
390 drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
391 debugfs_remove_recursive(sta->debugfs.dir);
392 sta->debugfs.dir = NULL;
393}