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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 * Copyright(c) 2016 Intel Deutschland GmbH
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/debugfs.h>
14#include <linux/ieee80211.h>
15#include "ieee80211_i.h"
16#include "debugfs.h"
17#include "debugfs_sta.h"
18#include "sta_info.h"
19#include "driver-ops.h"
20
21/* sta attributtes */
22
23#define STA_READ(name, field, format_string) \
24static ssize_t sta_ ##name## _read(struct file *file, \
25 char __user *userbuf, \
26 size_t count, loff_t *ppos) \
27{ \
28 struct sta_info *sta = file->private_data; \
29 return mac80211_format_buffer(userbuf, count, ppos, \
30 format_string, sta->field); \
31}
32#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
33
34#define STA_OPS(name) \
35static const struct file_operations sta_ ##name## _ops = { \
36 .read = sta_##name##_read, \
37 .open = simple_open, \
38 .llseek = generic_file_llseek, \
39}
40
41#define STA_OPS_RW(name) \
42static const struct file_operations sta_ ##name## _ops = { \
43 .read = sta_##name##_read, \
44 .write = sta_##name##_write, \
45 .open = simple_open, \
46 .llseek = generic_file_llseek, \
47}
48
49#define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
51 STA_OPS(name)
52
53STA_FILE(aid, sta.aid, D);
54
55static const char * const sta_flag_names[] = {
56#define FLAG(F) [WLAN_STA_##F] = #F
57 FLAG(AUTH),
58 FLAG(ASSOC),
59 FLAG(PS_STA),
60 FLAG(AUTHORIZED),
61 FLAG(SHORT_PREAMBLE),
62 FLAG(WDS),
63 FLAG(CLEAR_PS_FILT),
64 FLAG(MFP),
65 FLAG(BLOCK_BA),
66 FLAG(PS_DRIVER),
67 FLAG(PSPOLL),
68 FLAG(TDLS_PEER),
69 FLAG(TDLS_PEER_AUTH),
70 FLAG(TDLS_INITIATOR),
71 FLAG(TDLS_CHAN_SWITCH),
72 FLAG(TDLS_OFF_CHANNEL),
73 FLAG(TDLS_WIDER_BW),
74 FLAG(UAPSD),
75 FLAG(SP),
76 FLAG(4ADDR_EVENT),
77 FLAG(INSERTED),
78 FLAG(RATE_CONTROL),
79 FLAG(TOFFSET_KNOWN),
80 FLAG(MPSP_OWNER),
81 FLAG(MPSP_RECIPIENT),
82 FLAG(PS_DELIVER),
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+1);
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 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n");
158
159 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
160 txqi = to_txq_info(sta->sta.txq[i]);
161 p += scnprintf(p, bufsz+buf-p,
162 "%d %d %u %u %u %u %u %u %u %u %u\n",
163 txqi->txq.tid,
164 txqi->txq.ac,
165 txqi->tin.backlog_bytes,
166 txqi->tin.backlog_packets,
167 txqi->tin.flows,
168 txqi->cstats.drop_count,
169 txqi->cstats.ecn_mark,
170 txqi->tin.overlimit,
171 txqi->tin.collisions,
172 txqi->tin.tx_bytes,
173 txqi->tin.tx_packets);
174 }
175
176 rcu_read_unlock();
177 spin_unlock_bh(&local->fq.lock);
178
179 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
180 kfree(buf);
181 return rv;
182}
183STA_OPS(aqm);
184
185static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
186 size_t count, loff_t *ppos)
187{
188 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
189 int i;
190 struct sta_info *sta = file->private_data;
191 struct tid_ampdu_rx *tid_rx;
192 struct tid_ampdu_tx *tid_tx;
193
194 rcu_read_lock();
195
196 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
197 sta->ampdu_mlme.dialog_token_allocator + 1);
198 p += scnprintf(p, sizeof(buf) + buf - p,
199 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
200
201 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
202 bool tid_rx_valid;
203
204 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
205 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
206 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
207
208 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
209 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
210 tid_rx_valid);
211 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
212 tid_rx_valid ?
213 sta->ampdu_mlme.tid_rx_token[i] : 0);
214 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
215 tid_rx ? tid_rx->ssn : 0);
216
217 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
218 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
219 tid_tx ? tid_tx->dialog_token : 0);
220 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
221 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
222 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
223 }
224 rcu_read_unlock();
225
226 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
227}
228
229static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
230 size_t count, loff_t *ppos)
231{
232 char _buf[25] = {}, *buf = _buf;
233 struct sta_info *sta = file->private_data;
234 bool start, tx;
235 unsigned long tid;
236 char *pos;
237 int ret, timeout = 5000;
238
239 if (count > sizeof(_buf))
240 return -EINVAL;
241
242 if (copy_from_user(buf, userbuf, count))
243 return -EFAULT;
244
245 buf[sizeof(_buf) - 1] = '\0';
246 pos = buf;
247 buf = strsep(&pos, " ");
248 if (!buf)
249 return -EINVAL;
250
251 if (!strcmp(buf, "tx"))
252 tx = true;
253 else if (!strcmp(buf, "rx"))
254 tx = false;
255 else
256 return -EINVAL;
257
258 buf = strsep(&pos, " ");
259 if (!buf)
260 return -EINVAL;
261 if (!strcmp(buf, "start")) {
262 start = true;
263 if (!tx)
264 return -EINVAL;
265 } else if (!strcmp(buf, "stop")) {
266 start = false;
267 } else {
268 return -EINVAL;
269 }
270
271 buf = strsep(&pos, " ");
272 if (!buf)
273 return -EINVAL;
274 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
275 buf = strsep(&pos, " ");
276 if (!buf || !tx || !start)
277 return -EINVAL;
278 }
279
280 ret = kstrtoul(buf, 0, &tid);
281 if (ret || tid >= IEEE80211_NUM_TIDS)
282 return -EINVAL;
283
284 if (tx) {
285 if (start)
286 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
287 timeout);
288 else
289 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
290 } else {
291 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
292 3, true);
293 ret = 0;
294 }
295
296 return ret ?: count;
297}
298STA_OPS_RW(agg_status);
299
300static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
301 size_t count, loff_t *ppos)
302{
303#define PRINT_HT_CAP(_cond, _str) \
304 do { \
305 if (_cond) \
306 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
307 } while (0)
308 char buf[512], *p = buf;
309 int i;
310 struct sta_info *sta = file->private_data;
311 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
312
313 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
314 htc->ht_supported ? "" : "not ");
315 if (htc->ht_supported) {
316 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
317
318 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
319 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
320 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
321
322 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
323 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
324 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
325
326 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
327 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
328 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
329 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
330
331 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
332 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
333 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
334 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
335
336 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
337
338 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
339 "3839 bytes");
340 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
341 "7935 bytes");
342
343 /*
344 * For beacons and probe response this would mean the BSS
345 * does or does not allow the usage of DSSS/CCK HT40.
346 * Otherwise it means the STA does or does not use
347 * DSSS/CCK HT40.
348 */
349 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
350 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
351
352 /* BIT(13) is reserved */
353
354 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
355
356 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
357
358 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
359 htc->ampdu_factor, htc->ampdu_density);
360 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
361
362 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
363 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
364 htc->mcs.rx_mask[i]);
365 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
366
367 /* If not set this is meaningless */
368 if (le16_to_cpu(htc->mcs.rx_highest)) {
369 p += scnprintf(p, sizeof(buf)+buf-p,
370 "MCS rx highest: %d Mbps\n",
371 le16_to_cpu(htc->mcs.rx_highest));
372 }
373
374 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
375 htc->mcs.tx_params);
376 }
377
378 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
379}
380STA_OPS(ht_capa);
381
382static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
383 size_t count, loff_t *ppos)
384{
385 char buf[512], *p = buf;
386 struct sta_info *sta = file->private_data;
387 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
388
389 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
390 vhtc->vht_supported ? "" : "not ");
391 if (vhtc->vht_supported) {
392 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
393 vhtc->cap);
394#define PFLAG(a, b) \
395 do { \
396 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
397 p += scnprintf(p, sizeof(buf) + buf - p, \
398 "\t\t%s\n", b); \
399 } while (0)
400
401 switch (vhtc->cap & 0x3) {
402 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
403 p += scnprintf(p, sizeof(buf) + buf - p,
404 "\t\tMAX-MPDU-3895\n");
405 break;
406 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
407 p += scnprintf(p, sizeof(buf) + buf - p,
408 "\t\tMAX-MPDU-7991\n");
409 break;
410 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
411 p += scnprintf(p, sizeof(buf) + buf - p,
412 "\t\tMAX-MPDU-11454\n");
413 break;
414 default:
415 p += scnprintf(p, sizeof(buf) + buf - p,
416 "\t\tMAX-MPDU-UNKNOWN\n");
417 };
418 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
419 case 0:
420 p += scnprintf(p, sizeof(buf) + buf - p,
421 "\t\t80Mhz\n");
422 break;
423 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
424 p += scnprintf(p, sizeof(buf) + buf - p,
425 "\t\t160Mhz\n");
426 break;
427 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
428 p += scnprintf(p, sizeof(buf) + buf - p,
429 "\t\t80+80Mhz\n");
430 break;
431 default:
432 p += scnprintf(p, sizeof(buf) + buf - p,
433 "\t\tUNKNOWN-MHZ: 0x%x\n",
434 (vhtc->cap >> 2) & 0x3);
435 };
436 PFLAG(RXLDPC, "RXLDPC");
437 PFLAG(SHORT_GI_80, "SHORT-GI-80");
438 PFLAG(SHORT_GI_160, "SHORT-GI-160");
439 PFLAG(TXSTBC, "TXSTBC");
440 p += scnprintf(p, sizeof(buf) + buf - p,
441 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
442 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
443 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
444 p += scnprintf(p, sizeof(buf) + buf - p,
445 "\t\tBEAMFORMEE-STS: 0x%x\n",
446 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
447 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
448 p += scnprintf(p, sizeof(buf) + buf - p,
449 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
450 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
451 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
452 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
453 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
454 PFLAG(VHT_TXOP_PS, "TXOP-PS");
455 PFLAG(HTC_VHT, "HTC-VHT");
456 p += scnprintf(p, sizeof(buf) + buf - p,
457 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
458 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
459 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
460 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
461 "LINK-ADAPTATION-VHT-UNSOL-MFB");
462 p += scnprintf(p, sizeof(buf) + buf - p,
463 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
464 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
465 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
466 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
467
468 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
469 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
470 if (vhtc->vht_mcs.rx_highest)
471 p += scnprintf(p, sizeof(buf)+buf-p,
472 "MCS RX highest: %d Mbps\n",
473 le16_to_cpu(vhtc->vht_mcs.rx_highest));
474 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
475 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
476 if (vhtc->vht_mcs.tx_highest)
477 p += scnprintf(p, sizeof(buf)+buf-p,
478 "MCS TX highest: %d Mbps\n",
479 le16_to_cpu(vhtc->vht_mcs.tx_highest));
480 }
481
482 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
483}
484STA_OPS(vht_capa);
485
486
487#define DEBUGFS_ADD(name) \
488 debugfs_create_file(#name, 0400, \
489 sta->debugfs_dir, sta, &sta_ ##name## _ops);
490
491#define DEBUGFS_ADD_COUNTER(name, field) \
492 if (sizeof(sta->field) == sizeof(u32)) \
493 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
494 (u32 *) &sta->field); \
495 else \
496 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
497 (u64 *) &sta->field);
498
499void ieee80211_sta_debugfs_add(struct sta_info *sta)
500{
501 struct ieee80211_local *local = sta->local;
502 struct ieee80211_sub_if_data *sdata = sta->sdata;
503 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
504 u8 mac[3*ETH_ALEN];
505
506 if (!stations_dir)
507 return;
508
509 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
510
511 /*
512 * This might fail due to a race condition:
513 * When mac80211 unlinks a station, the debugfs entries
514 * remain, but it is already possible to link a new
515 * station with the same address which triggers adding
516 * it to debugfs; therefore, if the old station isn't
517 * destroyed quickly enough the old station's debugfs
518 * dir might still be around.
519 */
520 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
521 if (!sta->debugfs_dir)
522 return;
523
524 DEBUGFS_ADD(flags);
525 DEBUGFS_ADD(num_ps_buf_frames);
526 DEBUGFS_ADD(last_seq_ctrl);
527 DEBUGFS_ADD(agg_status);
528 DEBUGFS_ADD(ht_capa);
529 DEBUGFS_ADD(vht_capa);
530
531 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
532 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
533 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
534
535 if (local->ops->wake_tx_queue)
536 DEBUGFS_ADD(aqm);
537
538 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
539 debugfs_create_x32("driver_buffered_tids", 0400,
540 sta->debugfs_dir,
541 (u32 *)&sta->driver_buffered_tids);
542 else
543 debugfs_create_x64("driver_buffered_tids", 0400,
544 sta->debugfs_dir,
545 (u64 *)&sta->driver_buffered_tids);
546
547 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
548}
549
550void ieee80211_sta_debugfs_remove(struct sta_info *sta)
551{
552 debugfs_remove_recursive(sta->debugfs_dir);
553 sta->debugfs_dir = NULL;
554}
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#undef FLAG
83};
84
85static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
86 size_t count, loff_t *ppos)
87{
88 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
89 char *end = buf + sizeof(buf) - 1;
90 struct sta_info *sta = file->private_data;
91 unsigned int flg;
92
93 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
94
95 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
96 if (test_sta_flag(sta, flg))
97 pos += scnprintf(pos, end - pos, "%s\n",
98 sta_flag_names[flg]);
99 }
100
101 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
102}
103STA_OPS(flags);
104
105static ssize_t sta_num_ps_buf_frames_read(struct file *file,
106 char __user *userbuf,
107 size_t count, loff_t *ppos)
108{
109 struct sta_info *sta = file->private_data;
110 char buf[17*IEEE80211_NUM_ACS], *p = buf;
111 int ac;
112
113 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
114 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
115 skb_queue_len(&sta->ps_tx_buf[ac]) +
116 skb_queue_len(&sta->tx_filtered[ac]));
117 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
118}
119STA_OPS(num_ps_buf_frames);
120
121static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
122 size_t count, loff_t *ppos)
123{
124 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
125 int i;
126 struct sta_info *sta = file->private_data;
127 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
128 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
129 le16_to_cpu(sta->last_seq_ctrl[i]));
130 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
131 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
132}
133STA_OPS(last_seq_ctrl);
134
135#define AQM_TXQ_ENTRY_LEN 130
136
137static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
138 size_t count, loff_t *ppos)
139{
140 struct sta_info *sta = file->private_data;
141 struct ieee80211_local *local = sta->local;
142 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
143 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
144 struct txq_info *txqi;
145 ssize_t rv;
146 int i;
147
148 if (!buf)
149 return -ENOMEM;
150
151 spin_lock_bh(&local->fq.lock);
152 rcu_read_lock();
153
154 p += scnprintf(p,
155 bufsz+buf-p,
156 "target %uus interval %uus ecn %s\n",
157 codel_time_to_us(sta->cparams.target),
158 codel_time_to_us(sta->cparams.interval),
159 sta->cparams.ecn ? "yes" : "no");
160 p += scnprintf(p,
161 bufsz+buf-p,
162 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
163
164 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
165 if (!sta->sta.txq[i])
166 continue;
167 txqi = to_txq_info(sta->sta.txq[i]);
168 p += scnprintf(p, bufsz+buf-p,
169 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
170 txqi->txq.tid,
171 txqi->txq.ac,
172 txqi->tin.backlog_bytes,
173 txqi->tin.backlog_packets,
174 txqi->tin.flows,
175 txqi->cstats.drop_count,
176 txqi->cstats.ecn_mark,
177 txqi->tin.overlimit,
178 txqi->tin.collisions,
179 txqi->tin.tx_bytes,
180 txqi->tin.tx_packets,
181 txqi->flags,
182 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
183 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
184 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
185 }
186
187 rcu_read_unlock();
188 spin_unlock_bh(&local->fq.lock);
189
190 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
191 kfree(buf);
192 return rv;
193}
194STA_OPS(aqm);
195
196static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
197 size_t count, loff_t *ppos)
198{
199 struct sta_info *sta = file->private_data;
200 struct ieee80211_local *local = sta->sdata->local;
201 size_t bufsz = 400;
202 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
203 u64 rx_airtime = 0, tx_airtime = 0;
204 s64 deficit[IEEE80211_NUM_ACS];
205 ssize_t rv;
206 int ac;
207
208 if (!buf)
209 return -ENOMEM;
210
211 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
212 spin_lock_bh(&local->active_txq_lock[ac]);
213 rx_airtime += sta->airtime[ac].rx_airtime;
214 tx_airtime += sta->airtime[ac].tx_airtime;
215 deficit[ac] = sta->airtime[ac].deficit;
216 spin_unlock_bh(&local->active_txq_lock[ac]);
217 }
218
219 p += scnprintf(p, bufsz + buf - p,
220 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
221 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
222 rx_airtime, tx_airtime, sta->airtime_weight,
223 deficit[0], deficit[1], deficit[2], deficit[3]);
224
225 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
226 kfree(buf);
227 return rv;
228}
229
230static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
231 size_t count, loff_t *ppos)
232{
233 struct sta_info *sta = file->private_data;
234 struct ieee80211_local *local = sta->sdata->local;
235 int ac;
236
237 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
238 spin_lock_bh(&local->active_txq_lock[ac]);
239 sta->airtime[ac].rx_airtime = 0;
240 sta->airtime[ac].tx_airtime = 0;
241 sta->airtime[ac].deficit = sta->airtime_weight;
242 spin_unlock_bh(&local->active_txq_lock[ac]);
243 }
244
245 return count;
246}
247STA_OPS_RW(airtime);
248
249static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
250 size_t count, loff_t *ppos)
251{
252 struct sta_info *sta = file->private_data;
253 struct ieee80211_local *local = sta->sdata->local;
254 size_t bufsz = 400;
255 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
256 u32 q_depth[IEEE80211_NUM_ACS];
257 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
258 ssize_t rv;
259 int ac;
260
261 if (!buf)
262 return -ENOMEM;
263
264 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
265 spin_lock_bh(&local->active_txq_lock[ac]);
266 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
267 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
268 spin_unlock_bh(&local->active_txq_lock[ac]);
269 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
270 }
271
272 p += scnprintf(p, bufsz + buf - p,
273 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
274 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
275 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
276 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
277 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]),
278
279 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
280 kfree(buf);
281 return rv;
282}
283
284static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
285 size_t count, loff_t *ppos)
286{
287 struct sta_info *sta = file->private_data;
288 u32 ac, q_limit_l, q_limit_h;
289 char _buf[100] = {}, *buf = _buf;
290
291 if (count > sizeof(_buf))
292 return -EINVAL;
293
294 if (copy_from_user(buf, userbuf, count))
295 return -EFAULT;
296
297 buf[sizeof(_buf) - 1] = '\0';
298 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
299 != 3)
300 return -EINVAL;
301
302 if (ac >= IEEE80211_NUM_ACS)
303 return -EINVAL;
304
305 sta->airtime[ac].aql_limit_low = q_limit_l;
306 sta->airtime[ac].aql_limit_high = q_limit_h;
307
308 return count;
309}
310STA_OPS_RW(aql);
311
312
313static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
314 size_t count, loff_t *ppos)
315{
316 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
317 int i;
318 struct sta_info *sta = file->private_data;
319 struct tid_ampdu_rx *tid_rx;
320 struct tid_ampdu_tx *tid_tx;
321
322 rcu_read_lock();
323
324 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
325 sta->ampdu_mlme.dialog_token_allocator + 1);
326 p += scnprintf(p, sizeof(buf) + buf - p,
327 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
328
329 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
330 bool tid_rx_valid;
331
332 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
333 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
334 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
335
336 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
337 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
338 tid_rx_valid);
339 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
340 tid_rx_valid ?
341 sta->ampdu_mlme.tid_rx_token[i] : 0);
342 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
343 tid_rx ? tid_rx->ssn : 0);
344
345 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
346 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
347 tid_tx ? tid_tx->dialog_token : 0);
348 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
349 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
350 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
351 }
352 rcu_read_unlock();
353
354 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
355}
356
357static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
358 size_t count, loff_t *ppos)
359{
360 char _buf[25] = {}, *buf = _buf;
361 struct sta_info *sta = file->private_data;
362 bool start, tx;
363 unsigned long tid;
364 char *pos;
365 int ret, timeout = 5000;
366
367 if (count > sizeof(_buf))
368 return -EINVAL;
369
370 if (copy_from_user(buf, userbuf, count))
371 return -EFAULT;
372
373 buf[sizeof(_buf) - 1] = '\0';
374 pos = buf;
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}
426STA_OPS_RW(agg_status);
427
428static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
429 size_t count, loff_t *ppos)
430{
431#define PRINT_HT_CAP(_cond, _str) \
432 do { \
433 if (_cond) \
434 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
435 } while (0)
436 char buf[512], *p = buf;
437 int i;
438 struct sta_info *sta = file->private_data;
439 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
440
441 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
442 htc->ht_supported ? "" : "not ");
443 if (htc->ht_supported) {
444 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
445
446 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
447 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
448 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
449
450 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
451 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
452 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
453
454 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
455 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
456 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
457 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
458
459 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
460 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
461 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
462 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
463
464 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
465
466 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
467 "3839 bytes");
468 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
469 "7935 bytes");
470
471 /*
472 * For beacons and probe response this would mean the BSS
473 * does or does not allow the usage of DSSS/CCK HT40.
474 * Otherwise it means the STA does or does not use
475 * DSSS/CCK HT40.
476 */
477 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
478 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
479
480 /* BIT(13) is reserved */
481
482 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
483
484 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
485
486 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
487 htc->ampdu_factor, htc->ampdu_density);
488 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
489
490 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
491 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
492 htc->mcs.rx_mask[i]);
493 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
494
495 /* If not set this is meaningless */
496 if (le16_to_cpu(htc->mcs.rx_highest)) {
497 p += scnprintf(p, sizeof(buf)+buf-p,
498 "MCS rx highest: %d Mbps\n",
499 le16_to_cpu(htc->mcs.rx_highest));
500 }
501
502 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
503 htc->mcs.tx_params);
504 }
505
506 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
507}
508STA_OPS(ht_capa);
509
510static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
511 size_t count, loff_t *ppos)
512{
513 char buf[512], *p = buf;
514 struct sta_info *sta = file->private_data;
515 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
516
517 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
518 vhtc->vht_supported ? "" : "not ");
519 if (vhtc->vht_supported) {
520 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
521 vhtc->cap);
522#define PFLAG(a, b) \
523 do { \
524 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
525 p += scnprintf(p, sizeof(buf) + buf - p, \
526 "\t\t%s\n", b); \
527 } while (0)
528
529 switch (vhtc->cap & 0x3) {
530 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
531 p += scnprintf(p, sizeof(buf) + buf - p,
532 "\t\tMAX-MPDU-3895\n");
533 break;
534 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
535 p += scnprintf(p, sizeof(buf) + buf - p,
536 "\t\tMAX-MPDU-7991\n");
537 break;
538 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
539 p += scnprintf(p, sizeof(buf) + buf - p,
540 "\t\tMAX-MPDU-11454\n");
541 break;
542 default:
543 p += scnprintf(p, sizeof(buf) + buf - p,
544 "\t\tMAX-MPDU-UNKNOWN\n");
545 }
546 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
547 case 0:
548 p += scnprintf(p, sizeof(buf) + buf - p,
549 "\t\t80Mhz\n");
550 break;
551 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
552 p += scnprintf(p, sizeof(buf) + buf - p,
553 "\t\t160Mhz\n");
554 break;
555 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
556 p += scnprintf(p, sizeof(buf) + buf - p,
557 "\t\t80+80Mhz\n");
558 break;
559 default:
560 p += scnprintf(p, sizeof(buf) + buf - p,
561 "\t\tUNKNOWN-MHZ: 0x%x\n",
562 (vhtc->cap >> 2) & 0x3);
563 }
564 PFLAG(RXLDPC, "RXLDPC");
565 PFLAG(SHORT_GI_80, "SHORT-GI-80");
566 PFLAG(SHORT_GI_160, "SHORT-GI-160");
567 PFLAG(TXSTBC, "TXSTBC");
568 p += scnprintf(p, sizeof(buf) + buf - p,
569 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
570 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
571 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
572 p += scnprintf(p, sizeof(buf) + buf - p,
573 "\t\tBEAMFORMEE-STS: 0x%x\n",
574 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
575 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
576 p += scnprintf(p, sizeof(buf) + buf - p,
577 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
578 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
579 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
580 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
581 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
582 PFLAG(VHT_TXOP_PS, "TXOP-PS");
583 PFLAG(HTC_VHT, "HTC-VHT");
584 p += scnprintf(p, sizeof(buf) + buf - p,
585 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
586 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
587 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
588 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
589 "LINK-ADAPTATION-VHT-UNSOL-MFB");
590 p += scnprintf(p, sizeof(buf) + buf - p,
591 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
592 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
593 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
594 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
595
596 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
597 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
598 if (vhtc->vht_mcs.rx_highest)
599 p += scnprintf(p, sizeof(buf)+buf-p,
600 "MCS RX highest: %d Mbps\n",
601 le16_to_cpu(vhtc->vht_mcs.rx_highest));
602 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
603 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
604 if (vhtc->vht_mcs.tx_highest)
605 p += scnprintf(p, sizeof(buf)+buf-p,
606 "MCS TX highest: %d Mbps\n",
607 le16_to_cpu(vhtc->vht_mcs.tx_highest));
608#undef PFLAG
609 }
610
611 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
612}
613STA_OPS(vht_capa);
614
615static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
616 size_t count, loff_t *ppos)
617{
618 char *buf, *p;
619 size_t buf_sz = PAGE_SIZE;
620 struct sta_info *sta = file->private_data;
621 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
622 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
623 u8 ppe_size;
624 u8 *cap;
625 int i;
626 ssize_t ret;
627
628 buf = kmalloc(buf_sz, GFP_KERNEL);
629 if (!buf)
630 return -ENOMEM;
631 p = buf;
632
633 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
634 hec->has_he ? "" : "not ");
635 if (!hec->has_he)
636 goto out;
637
638 cap = hec->he_cap_elem.mac_cap_info;
639 p += scnprintf(p, buf_sz + buf - p,
640 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
641 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
642
643#define PRINT(fmt, ...) \
644 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
645 ##__VA_ARGS__)
646
647#define PFLAG(t, n, a, b) \
648 do { \
649 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
650 PRINT("%s", b); \
651 } while (0)
652
653#define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
654 do { \
655 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
656 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
657 PRINT(fmt, (s << idx) + (m * idx)); \
658 } while (0)
659
660#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
661 do { \
662 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
663 PRINT("%s", b); \
664 break; \
665 } \
666 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
667 } while (0)
668
669 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
670 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
671 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
672 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
673 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
674 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
675 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
676
677 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
678 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
679 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
680 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
681 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
682 "MULTI-TID-AGG-RX-QOS-%d");
683
684 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
685 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
686 case 0:
687 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
688 break;
689 case 1:
690 PRINT("LINK-ADAPTATION-RESERVED");
691 break;
692 case 2:
693 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
694 break;
695 case 3:
696 PRINT("LINK-ADAPTATION-BOTH");
697 break;
698 }
699 }
700
701 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
702 PFLAG(MAC, 2, TRS, "TRS");
703 PFLAG(MAC, 2, BSR, "BSR");
704 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
705 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
706 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
707 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
708
709 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
710 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
711
712 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
713 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
714 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
715 break;
716 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
717 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
718 break;
719 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
720 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
721 break;
722 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
723 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
724 break;
725 }
726
727 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
728 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
729 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
730
731 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
732 PFLAG(MAC, 4, QTP, "QTP");
733 PFLAG(MAC, 4, BQR, "BQR");
734 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
735 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
736 PFLAG(MAC, 4, OPS, "OPS");
737 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
738
739 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
740
741 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
742 "SUBCHAN-SELECVITE-TRANSMISSION");
743 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
744 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
745 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
746 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
747 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
748
749 cap = hec->he_cap_elem.phy_cap_info;
750 p += scnprintf(p, buf_sz + buf - p,
751 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
752 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
753 cap[7], cap[8], cap[9], cap[10]);
754
755 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
756 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
757 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
758 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
759 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
760 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
761 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
762 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
763 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
764 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
765 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
766 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
767
768 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
769 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
770 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
771 break;
772 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
773 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
774 break;
775 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
776 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
777 break;
778 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
779 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
780 break;
781 }
782
783 PFLAG(PHY, 1, DEVICE_CLASS_A,
784 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
785 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
786 "LDPC-CODING-IN-PAYLOAD");
787 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
788 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
789 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
790
791 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
792 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
793 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
794 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
795 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
796 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
797 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
798
799 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
800 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
801 PRINT("DCM-MAX-CONST-TX-NO-DCM");
802 break;
803 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
804 PRINT("DCM-MAX-CONST-TX-BPSK");
805 break;
806 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
807 PRINT("DCM-MAX-CONST-TX-QPSK");
808 break;
809 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
810 PRINT("DCM-MAX-CONST-TX-16-QAM");
811 break;
812 }
813
814 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
815 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
816
817 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
818 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
819 PRINT("DCM-MAX-CONST-RX-NO-DCM");
820 break;
821 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
822 PRINT("DCM-MAX-CONST-RX-BPSK");
823 break;
824 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
825 PRINT("DCM-MAX-CONST-RX-QPSK");
826 break;
827 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
828 PRINT("DCM-MAX-CONST-RX-16-QAM");
829 break;
830 }
831
832 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
833 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
834 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
835 "RX-HE-MU-PPDU-FROM-NON-AP-STA");
836 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
837
838 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
839 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
840
841 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
842 "BEAMFORMEE-MAX-STS-UNDER-%d");
843 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
844 "BEAMFORMEE-MAX-STS-ABOVE-%d");
845
846 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
847 "NUM-SND-DIM-UNDER-80MHZ-%d");
848 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
849 "NUM-SND-DIM-ABOVE-80MHZ-%d");
850 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
851 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
852
853 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
854 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
855 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
856 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
857 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
858 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
859 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
860 "PARTIAL-BANDWIDTH-DL-MUMIMO");
861 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
862
863 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
864 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
865 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
866 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
867 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
868 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
869 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
870
871 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
872 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
873 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
874 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
875 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
876 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
877 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
878 "HE-ER-SU-1XLTF-AND-08-US-GI");
879 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
880 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
881
882 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
883 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
884 PRINT("DCM-MAX-RU-242");
885 break;
886 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
887 PRINT("DCM-MAX-RU-484");
888 break;
889 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
890 PRINT("DCM-MAX-RU-996");
891 break;
892 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
893 PRINT("DCM-MAX-RU-2x996");
894 break;
895 }
896
897 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
898 "LONGER-THAN-16-SIGB-OFDM-SYM");
899 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
900 "NON-TRIGGERED-CQI-FEEDBACK");
901 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
902 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
903 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
904 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
905 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
906 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
907 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
908 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
909
910 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
911 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
912 PRINT("NOMINAL-PACKET-PADDING-0US");
913 break;
914 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
915 PRINT("NOMINAL-PACKET-PADDING-8US");
916 break;
917 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
918 PRINT("NOMINAL-PACKET-PADDING-16US");
919 break;
920 }
921
922#undef PFLAG_RANGE_DEFAULT
923#undef PFLAG_RANGE
924#undef PFLAG
925
926#define PRINT_NSS_SUPP(f, n) \
927 do { \
928 int _i; \
929 u16 v = le16_to_cpu(nss->f); \
930 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
931 for (_i = 0; _i < 8; _i += 2) { \
932 switch ((v >> _i) & 0x3) { \
933 case 0: \
934 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
935 break; \
936 case 1: \
937 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
938 break; \
939 case 2: \
940 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
941 break; \
942 case 3: \
943 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
944 break; \
945 } \
946 } \
947 } while (0)
948
949 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
950 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
951
952 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
953 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
954 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
955 }
956
957 if (cap[0] &
958 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
959 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
960 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
961 }
962
963#undef PRINT_NSS_SUPP
964#undef PRINT
965
966 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
967 goto out;
968
969 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
970 hec->ppe_thres[0]);
971
972 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
973 for (i = 1; i < ppe_size; i++) {
974 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
975 hec->ppe_thres[i]);
976 }
977 p += scnprintf(p, buf_sz + buf - p, "\n");
978
979out:
980 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
981 kfree(buf);
982 return ret;
983}
984STA_OPS(he_capa);
985
986#define DEBUGFS_ADD(name) \
987 debugfs_create_file(#name, 0400, \
988 sta->debugfs_dir, sta, &sta_ ##name## _ops);
989
990#define DEBUGFS_ADD_COUNTER(name, field) \
991 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
992
993void ieee80211_sta_debugfs_add(struct sta_info *sta)
994{
995 struct ieee80211_local *local = sta->local;
996 struct ieee80211_sub_if_data *sdata = sta->sdata;
997 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
998 u8 mac[3*ETH_ALEN];
999
1000 if (!stations_dir)
1001 return;
1002
1003 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1004
1005 /*
1006 * This might fail due to a race condition:
1007 * When mac80211 unlinks a station, the debugfs entries
1008 * remain, but it is already possible to link a new
1009 * station with the same address which triggers adding
1010 * it to debugfs; therefore, if the old station isn't
1011 * destroyed quickly enough the old station's debugfs
1012 * dir might still be around.
1013 */
1014 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1015
1016 DEBUGFS_ADD(flags);
1017 DEBUGFS_ADD(aid);
1018 DEBUGFS_ADD(num_ps_buf_frames);
1019 DEBUGFS_ADD(last_seq_ctrl);
1020 DEBUGFS_ADD(agg_status);
1021 DEBUGFS_ADD(ht_capa);
1022 DEBUGFS_ADD(vht_capa);
1023 DEBUGFS_ADD(he_capa);
1024
1025 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1026 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1027 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1028
1029 if (local->ops->wake_tx_queue) {
1030 DEBUGFS_ADD(aqm);
1031 DEBUGFS_ADD(airtime);
1032 }
1033
1034 if (wiphy_ext_feature_isset(local->hw.wiphy,
1035 NL80211_EXT_FEATURE_AQL))
1036 DEBUGFS_ADD(aql);
1037
1038 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1039 &sta->driver_buffered_tids);
1040
1041 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1042}
1043
1044void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1045{
1046 debugfs_remove_recursive(sta->debugfs_dir);
1047 sta->debugfs_dir = NULL;
1048}