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Linux 5.1.15
[linux/fpc-iii.git] / net / mac80211 / debugfs_sta.c
blob8e921281e0d5f145d55391c8df01a0262201e89a
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 * Copyright (C) 2018 - 2019 Intel Corporation
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/debugfs.h>
15 #include <linux/ieee80211.h>
16 #include "ieee80211_i.h"
17 #include "debugfs.h"
18 #include "debugfs_sta.h"
19 #include "sta_info.h"
20 #include "driver-ops.h"
21
22 /* sta attributtes */
23
24 #define STA_READ(name, field, format_string) \
25 static ssize_t sta_ ##name## _read(struct file *file, \
26 char __user *userbuf, \
27 size_t count, loff_t *ppos) \
28 { \
29 struct sta_info *sta = file->private_data; \
30 return mac80211_format_buffer(userbuf, count, ppos, \
31 format_string, sta->field); \
32 }
33 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
34
35 #define STA_OPS(name) \
36 static const struct file_operations sta_ ##name## _ops = { \
37 .read = sta_##name##_read, \
38 .open = simple_open, \
39 .llseek = generic_file_llseek, \
40 }
41
42 #define STA_OPS_RW(name) \
43 static const struct file_operations sta_ ##name## _ops = { \
44 .read = sta_##name##_read, \
45 .write = sta_##name##_write, \
46 .open = simple_open, \
47 .llseek = generic_file_llseek, \
48 }
49
50 #define STA_FILE(name, field, format) \
51 STA_READ_##format(name, field) \
52 STA_OPS(name)
53
54 STA_FILE(aid, sta.aid, D);
55
56 static const char * const sta_flag_names[] = {
57 #define FLAG(F) [WLAN_STA_##F] = #F
58 FLAG(AUTH),
59 FLAG(ASSOC),
60 FLAG(PS_STA),
61 FLAG(AUTHORIZED),
62 FLAG(SHORT_PREAMBLE),
63 FLAG(WDS),
64 FLAG(CLEAR_PS_FILT),
65 FLAG(MFP),
66 FLAG(BLOCK_BA),
67 FLAG(PS_DRIVER),
68 FLAG(PSPOLL),
69 FLAG(TDLS_PEER),
70 FLAG(TDLS_PEER_AUTH),
71 FLAG(TDLS_INITIATOR),
72 FLAG(TDLS_CHAN_SWITCH),
73 FLAG(TDLS_OFF_CHANNEL),
74 FLAG(TDLS_WIDER_BW),
75 FLAG(UAPSD),
76 FLAG(SP),
77 FLAG(4ADDR_EVENT),
78 FLAG(INSERTED),
79 FLAG(RATE_CONTROL),
80 FLAG(TOFFSET_KNOWN),
81 FLAG(MPSP_OWNER),
82 FLAG(MPSP_RECIPIENT),
83 FLAG(PS_DELIVER),
84 #undef FLAG
85 };
86
87 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
88 size_t count, loff_t *ppos)
89 {
90 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
91 char *end = buf + sizeof(buf) - 1;
92 struct sta_info *sta = file->private_data;
93 unsigned int flg;
94
95 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
96
97 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
98 if (test_sta_flag(sta, flg))
99 pos += scnprintf(pos, end - pos, "%s\n",
100 sta_flag_names[flg]);
101 }
102
103 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
104 }
105 STA_OPS(flags);
106
107 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
108 char __user *userbuf,
109 size_t count, loff_t *ppos)
110 {
111 struct sta_info *sta = file->private_data;
112 char buf[17*IEEE80211_NUM_ACS], *p = buf;
113 int ac;
114
115 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
116 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
117 skb_queue_len(&sta->ps_tx_buf[ac]) +
118 skb_queue_len(&sta->tx_filtered[ac]));
119 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
120 }
121 STA_OPS(num_ps_buf_frames);
122
123 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
124 size_t count, loff_t *ppos)
125 {
126 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
127 int i;
128 struct sta_info *sta = file->private_data;
129 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
130 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
131 le16_to_cpu(sta->last_seq_ctrl[i]));
132 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
133 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
134 }
135 STA_OPS(last_seq_ctrl);
136
137 #define AQM_TXQ_ENTRY_LEN 130
138
139 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
140 size_t count, loff_t *ppos)
141 {
142 struct sta_info *sta = file->private_data;
143 struct ieee80211_local *local = sta->local;
144 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
145 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
146 struct txq_info *txqi;
147 ssize_t rv;
148 int i;
149
150 if (!buf)
151 return -ENOMEM;
152
153 spin_lock_bh(&local->fq.lock);
154 rcu_read_lock();
155
156 p += scnprintf(p,
157 bufsz+buf-p,
158 "target %uus interval %uus ecn %s\n",
159 codel_time_to_us(sta->cparams.target),
160 codel_time_to_us(sta->cparams.interval),
161 sta->cparams.ecn ? "yes" : "no");
162 p += scnprintf(p,
163 bufsz+buf-p,
164 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
165
166 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
167 if (!sta->sta.txq[i])
168 continue;
169 txqi = to_txq_info(sta->sta.txq[i]);
170 p += scnprintf(p, bufsz+buf-p,
171 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
172 txqi->txq.tid,
173 txqi->txq.ac,
174 txqi->tin.backlog_bytes,
175 txqi->tin.backlog_packets,
176 txqi->tin.flows,
177 txqi->cstats.drop_count,
178 txqi->cstats.ecn_mark,
179 txqi->tin.overlimit,
180 txqi->tin.collisions,
181 txqi->tin.tx_bytes,
182 txqi->tin.tx_packets,
183 txqi->flags,
184 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
185 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
186 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
187 }
188
189 rcu_read_unlock();
190 spin_unlock_bh(&local->fq.lock);
191
192 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
193 kfree(buf);
194 return rv;
195 }
196 STA_OPS(aqm);
197
198 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
199 size_t count, loff_t *ppos)
200 {
201 struct sta_info *sta = file->private_data;
202 struct ieee80211_local *local = sta->sdata->local;
203 size_t bufsz = 200;
204 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
205 u64 rx_airtime = 0, tx_airtime = 0;
206 s64 deficit[IEEE80211_NUM_ACS];
207 ssize_t rv;
208 int ac;
209
210 if (!buf)
211 return -ENOMEM;
212
213 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
214 spin_lock_bh(&local->active_txq_lock[ac]);
215 rx_airtime += sta->airtime[ac].rx_airtime;
216 tx_airtime += sta->airtime[ac].tx_airtime;
217 deficit[ac] = sta->airtime[ac].deficit;
218 spin_unlock_bh(&local->active_txq_lock[ac]);
219 }
220
221 p += scnprintf(p, bufsz + buf - p,
222 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
223 "Deficit: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
224 rx_airtime,
225 tx_airtime,
226 sta->airtime_weight,
227 deficit[0],
228 deficit[1],
229 deficit[2],
230 deficit[3]);
231
232 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
233 kfree(buf);
234 return rv;
235 }
236
237 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
238 size_t count, loff_t *ppos)
239 {
240 struct sta_info *sta = file->private_data;
241 struct ieee80211_local *local = sta->sdata->local;
242 int ac;
243
244 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
245 spin_lock_bh(&local->active_txq_lock[ac]);
246 sta->airtime[ac].rx_airtime = 0;
247 sta->airtime[ac].tx_airtime = 0;
248 sta->airtime[ac].deficit = sta->airtime_weight;
249 spin_unlock_bh(&local->active_txq_lock[ac]);
250 }
251
252 return count;
253 }
254 STA_OPS_RW(airtime);
255
256 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
257 size_t count, loff_t *ppos)
258 {
259 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
260 int i;
261 struct sta_info *sta = file->private_data;
262 struct tid_ampdu_rx *tid_rx;
263 struct tid_ampdu_tx *tid_tx;
264
265 rcu_read_lock();
266
267 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
268 sta->ampdu_mlme.dialog_token_allocator + 1);
269 p += scnprintf(p, sizeof(buf) + buf - p,
270 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
271
272 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
273 bool tid_rx_valid;
274
275 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
276 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
277 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
278
279 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
280 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
281 tid_rx_valid);
282 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
283 tid_rx_valid ?
284 sta->ampdu_mlme.tid_rx_token[i] : 0);
285 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
286 tid_rx ? tid_rx->ssn : 0);
287
288 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
289 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
290 tid_tx ? tid_tx->dialog_token : 0);
291 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
292 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
293 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
294 }
295 rcu_read_unlock();
296
297 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
298 }
299
300 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
301 size_t count, loff_t *ppos)
302 {
303 char _buf[25] = {}, *buf = _buf;
304 struct sta_info *sta = file->private_data;
305 bool start, tx;
306 unsigned long tid;
307 char *pos;
308 int ret, timeout = 5000;
309
310 if (count > sizeof(_buf))
311 return -EINVAL;
312
313 if (copy_from_user(buf, userbuf, count))
314 return -EFAULT;
315
316 buf[sizeof(_buf) - 1] = '\0';
317 pos = buf;
318 buf = strsep(&pos, " ");
319 if (!buf)
320 return -EINVAL;
321
322 if (!strcmp(buf, "tx"))
323 tx = true;
324 else if (!strcmp(buf, "rx"))
325 tx = false;
326 else
327 return -EINVAL;
328
329 buf = strsep(&pos, " ");
330 if (!buf)
331 return -EINVAL;
332 if (!strcmp(buf, "start")) {
333 start = true;
334 if (!tx)
335 return -EINVAL;
336 } else if (!strcmp(buf, "stop")) {
337 start = false;
338 } else {
339 return -EINVAL;
340 }
341
342 buf = strsep(&pos, " ");
343 if (!buf)
344 return -EINVAL;
345 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
346 buf = strsep(&pos, " ");
347 if (!buf || !tx || !start)
348 return -EINVAL;
349 }
350
351 ret = kstrtoul(buf, 0, &tid);
352 if (ret || tid >= IEEE80211_NUM_TIDS)
353 return -EINVAL;
354
355 if (tx) {
356 if (start)
357 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
358 timeout);
359 else
360 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
361 } else {
362 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
363 3, true);
364 ret = 0;
365 }
366
367 return ret ?: count;
368 }
369 STA_OPS_RW(agg_status);
370
371 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
372 size_t count, loff_t *ppos)
373 {
374 #define PRINT_HT_CAP(_cond, _str) \
375 do { \
376 if (_cond) \
377 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
378 } while (0)
379 char buf[512], *p = buf;
380 int i;
381 struct sta_info *sta = file->private_data;
382 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
383
384 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
385 htc->ht_supported ? "" : "not ");
386 if (htc->ht_supported) {
387 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
388
389 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
390 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
391 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
392
393 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
394 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
395 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
396
397 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
398 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
399 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
400 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
401
402 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
403 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
404 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
405 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
406
407 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
408
409 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
410 "3839 bytes");
411 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
412 "7935 bytes");
413
414 /*
415 * For beacons and probe response this would mean the BSS
416 * does or does not allow the usage of DSSS/CCK HT40.
417 * Otherwise it means the STA does or does not use
418 * DSSS/CCK HT40.
419 */
420 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
421 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
422
423 /* BIT(13) is reserved */
424
425 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
426
427 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
428
429 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
430 htc->ampdu_factor, htc->ampdu_density);
431 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
432
433 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
434 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
435 htc->mcs.rx_mask[i]);
436 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
437
438 /* If not set this is meaningless */
439 if (le16_to_cpu(htc->mcs.rx_highest)) {
440 p += scnprintf(p, sizeof(buf)+buf-p,
441 "MCS rx highest: %d Mbps\n",
442 le16_to_cpu(htc->mcs.rx_highest));
443 }
444
445 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
446 htc->mcs.tx_params);
447 }
448
449 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
450 }
451 STA_OPS(ht_capa);
452
453 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
454 size_t count, loff_t *ppos)
455 {
456 char buf[512], *p = buf;
457 struct sta_info *sta = file->private_data;
458 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
459
460 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
461 vhtc->vht_supported ? "" : "not ");
462 if (vhtc->vht_supported) {
463 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
464 vhtc->cap);
465 #define PFLAG(a, b) \
466 do { \
467 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
468 p += scnprintf(p, sizeof(buf) + buf - p, \
469 "\t\t%s\n", b); \
470 } while (0)
471
472 switch (vhtc->cap & 0x3) {
473 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
474 p += scnprintf(p, sizeof(buf) + buf - p,
475 "\t\tMAX-MPDU-3895\n");
476 break;
477 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
478 p += scnprintf(p, sizeof(buf) + buf - p,
479 "\t\tMAX-MPDU-7991\n");
480 break;
481 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
482 p += scnprintf(p, sizeof(buf) + buf - p,
483 "\t\tMAX-MPDU-11454\n");
484 break;
485 default:
486 p += scnprintf(p, sizeof(buf) + buf - p,
487 "\t\tMAX-MPDU-UNKNOWN\n");
488 }
489 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
490 case 0:
491 p += scnprintf(p, sizeof(buf) + buf - p,
492 "\t\t80Mhz\n");
493 break;
494 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
495 p += scnprintf(p, sizeof(buf) + buf - p,
496 "\t\t160Mhz\n");
497 break;
498 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
499 p += scnprintf(p, sizeof(buf) + buf - p,
500 "\t\t80+80Mhz\n");
501 break;
502 default:
503 p += scnprintf(p, sizeof(buf) + buf - p,
504 "\t\tUNKNOWN-MHZ: 0x%x\n",
505 (vhtc->cap >> 2) & 0x3);
506 }
507 PFLAG(RXLDPC, "RXLDPC");
508 PFLAG(SHORT_GI_80, "SHORT-GI-80");
509 PFLAG(SHORT_GI_160, "SHORT-GI-160");
510 PFLAG(TXSTBC, "TXSTBC");
511 p += scnprintf(p, sizeof(buf) + buf - p,
512 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
513 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
514 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
515 p += scnprintf(p, sizeof(buf) + buf - p,
516 "\t\tBEAMFORMEE-STS: 0x%x\n",
517 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
518 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
519 p += scnprintf(p, sizeof(buf) + buf - p,
520 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
521 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
522 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
523 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
524 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
525 PFLAG(VHT_TXOP_PS, "TXOP-PS");
526 PFLAG(HTC_VHT, "HTC-VHT");
527 p += scnprintf(p, sizeof(buf) + buf - p,
528 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
529 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
530 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
531 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
532 "LINK-ADAPTATION-VHT-UNSOL-MFB");
533 p += scnprintf(p, sizeof(buf) + buf - p,
534 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
535 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
536 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
537 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
538
539 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
540 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
541 if (vhtc->vht_mcs.rx_highest)
542 p += scnprintf(p, sizeof(buf)+buf-p,
543 "MCS RX highest: %d Mbps\n",
544 le16_to_cpu(vhtc->vht_mcs.rx_highest));
545 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
546 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
547 if (vhtc->vht_mcs.tx_highest)
548 p += scnprintf(p, sizeof(buf)+buf-p,
549 "MCS TX highest: %d Mbps\n",
550 le16_to_cpu(vhtc->vht_mcs.tx_highest));
551 #undef PFLAG
552 }
553
554 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
555 }
556 STA_OPS(vht_capa);
557
558 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
559 size_t count, loff_t *ppos)
560 {
561 char *buf, *p;
562 size_t buf_sz = PAGE_SIZE;
563 struct sta_info *sta = file->private_data;
564 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
565 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
566 u8 ppe_size;
567 u8 *cap;
568 int i;
569 ssize_t ret;
570
571 buf = kmalloc(buf_sz, GFP_KERNEL);
572 if (!buf)
573 return -ENOMEM;
574 p = buf;
575
576 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
577 hec->has_he ? "" : "not ");
578 if (!hec->has_he)
579 goto out;
580
581 cap = hec->he_cap_elem.mac_cap_info;
582 p += scnprintf(p, buf_sz + buf - p,
583 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
584 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
585
586 #define PRINT(fmt, ...) \
587 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
588 ##__VA_ARGS__)
589
590 #define PFLAG(t, n, a, b) \
591 do { \
592 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
593 PRINT("%s", b); \
594 } while (0)
595
596 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
597 do { \
598 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
599 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
600 PRINT(fmt, (s << idx) + (m * idx)); \
601 } while (0)
602
603 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
604 do { \
605 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
606 PRINT("%s", b); \
607 break; \
608 } \
609 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
610 } while (0)
611
612 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
613 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
614 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
615 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
616 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
617 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
618 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
619
620 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
621 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
622 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
623 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
624 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
625 "MULTI-TID-AGG-RX-QOS-%d");
626
627 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
628 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
629 case 0:
630 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
631 break;
632 case 1:
633 PRINT("LINK-ADAPTATION-RESERVED");
634 break;
635 case 2:
636 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
637 break;
638 case 3:
639 PRINT("LINK-ADAPTATION-BOTH");
640 break;
641 }
642 }
643
644 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
645 PFLAG(MAC, 2, TRS, "TRS");
646 PFLAG(MAC, 2, BSR, "BSR");
647 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
648 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
649 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
650 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
651
652 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
653 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
654
655 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
656 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_USE_VHT:
657 PRINT("MAX-AMPDU-LEN-EXP-USE-VHT");
658 break;
659 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_1:
660 PRINT("MAX-AMPDU-LEN-EXP-VHT-1");
661 break;
662 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2:
663 PRINT("MAX-AMPDU-LEN-EXP-VHT-2");
664 break;
665 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED:
666 PRINT("MAX-AMPDU-LEN-EXP-RESERVED");
667 break;
668 }
669
670 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
671 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
672 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
673
674 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
675 PFLAG(MAC, 4, QTP, "QTP");
676 PFLAG(MAC, 4, BQR, "BQR");
677 PFLAG(MAC, 4, SRP_RESP, "SRP-RESP");
678 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
679 PFLAG(MAC, 4, OPS, "OPS");
680 PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU");
681
682 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
683
684 PFLAG(MAC, 5, SUBCHAN_SELECVITE_TRANSMISSION,
685 "SUBCHAN-SELECVITE-TRANSMISSION");
686 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
687 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
688 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
689 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
690 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
691
692 cap = hec->he_cap_elem.phy_cap_info;
693 p += scnprintf(p, buf_sz + buf - p,
694 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
695 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
696 cap[7], cap[8], cap[9], cap[10]);
697
698 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
699 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
700 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
701 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
702 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
703 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
704 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
705 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
706 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
707 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
708 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
709 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
710
711 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
712 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
713 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
714 break;
715 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
716 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
717 break;
718 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
719 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
720 break;
721 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
722 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
723 break;
724 }
725
726 PFLAG(PHY, 1, DEVICE_CLASS_A,
727 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
728 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
729 "LDPC-CODING-IN-PAYLOAD");
730 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
731 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
732 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
733
734 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
735 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
736 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
737 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
738 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
739 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
740 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
741
742 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
743 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
744 PRINT("DCM-MAX-CONST-TX-NO-DCM");
745 break;
746 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
747 PRINT("DCM-MAX-CONST-TX-BPSK");
748 break;
749 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
750 PRINT("DCM-MAX-CONST-TX-QPSK");
751 break;
752 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
753 PRINT("DCM-MAX-CONST-TX-16-QAM");
754 break;
755 }
756
757 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
758 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
759
760 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
761 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
762 PRINT("DCM-MAX-CONST-RX-NO-DCM");
763 break;
764 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
765 PRINT("DCM-MAX-CONST-RX-BPSK");
766 break;
767 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
768 PRINT("DCM-MAX-CONST-RX-QPSK");
769 break;
770 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
771 PRINT("DCM-MAX-CONST-RX-16-QAM");
772 break;
773 }
774
775 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
776 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
777 PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA,
778 "RX-HE-MU-PPDU-FROM-NON-AP-STA");
779 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
780
781 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
782 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
783
784 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
785 "BEAMFORMEE-MAX-STS-UNDER-%d");
786 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
787 "BEAMFORMEE-MAX-STS-ABOVE-%d");
788
789 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
790 "NUM-SND-DIM-UNDER-80MHZ-%d");
791 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
792 "NUM-SND-DIM-ABOVE-80MHZ-%d");
793 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
794 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
795
796 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
797 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
798 PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB");
799 PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB");
800 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
801 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
802 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
803 "PARTIAL-BANDWIDTH-DL-MUMIMO");
804 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
805
806 PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR");
807 PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR");
808 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
809 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
810 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
811 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
812 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
813
814 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
815 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
816 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
817 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
818 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
819 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
820 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
821 "HE-ER-SU-1XLTF-AND-08-US-GI");
822 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
823 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
824
825 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
826 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
827 PRINT("DCM-MAX-RU-242");
828 break;
829 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
830 PRINT("DCM-MAX-RU-484");
831 break;
832 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
833 PRINT("DCM-MAX-RU-996");
834 break;
835 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
836 PRINT("DCM-MAX-RU-2x996");
837 break;
838 }
839
840 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
841 "LONGER-THAN-16-SIGB-OFDM-SYM");
842 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
843 "NON-TRIGGERED-CQI-FEEDBACK");
844 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
845 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
846 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
847 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
848 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
849 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
850 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
851 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
852
853 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
854 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
855 PRINT("NOMINAL-PACKET-PADDING-0US");
856 break;
857 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
858 PRINT("NOMINAL-PACKET-PADDING-8US");
859 break;
860 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
861 PRINT("NOMINAL-PACKET-PADDING-16US");
862 break;
863 }
864
865 #undef PFLAG_RANGE_DEFAULT
866 #undef PFLAG_RANGE
867 #undef PFLAG
868
869 #define PRINT_NSS_SUPP(f, n) \
870 do { \
871 int _i; \
872 u16 v = le16_to_cpu(nss->f); \
873 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
874 for (_i = 0; _i < 8; _i += 2) { \
875 switch ((v >> _i) & 0x3) { \
876 case 0: \
877 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
878 break; \
879 case 1: \
880 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
881 break; \
882 case 2: \
883 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
884 break; \
885 case 3: \
886 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
887 break; \
888 } \
889 } \
890 } while (0)
891
892 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
893 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
894
895 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
896 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
897 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
898 }
899
900 if (cap[0] &
901 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
902 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
903 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
904 }
905
906 #undef PRINT_NSS_SUPP
907 #undef PRINT
908
909 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
910 goto out;
911
912 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
913 hec->ppe_thres[0]);
914
915 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
916 for (i = 1; i < ppe_size; i++) {
917 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
918 hec->ppe_thres[i]);
919 }
920 p += scnprintf(p, buf_sz + buf - p, "\n");
921
922 out:
923 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
924 kfree(buf);
925 return ret;
926 }
927 STA_OPS(he_capa);
928
929 #define DEBUGFS_ADD(name) \
930 debugfs_create_file(#name, 0400, \
931 sta->debugfs_dir, sta, &sta_ ##name## _ops);
932
933 #define DEBUGFS_ADD_COUNTER(name, field) \
934 if (sizeof(sta->field) == sizeof(u32)) \
935 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
936 (u32 *) &sta->field); \
937 else \
938 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
939 (u64 *) &sta->field);
940
941 void ieee80211_sta_debugfs_add(struct sta_info *sta)
942 {
943 struct ieee80211_local *local = sta->local;
944 struct ieee80211_sub_if_data *sdata = sta->sdata;
945 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
946 u8 mac[3*ETH_ALEN];
947
948 if (!stations_dir)
949 return;
950
951 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
952
953 /*
954 * This might fail due to a race condition:
955 * When mac80211 unlinks a station, the debugfs entries
956 * remain, but it is already possible to link a new
957 * station with the same address which triggers adding
958 * it to debugfs; therefore, if the old station isn't
959 * destroyed quickly enough the old station's debugfs
960 * dir might still be around.
961 */
962 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
963 if (!sta->debugfs_dir)
964 return;
965
966 DEBUGFS_ADD(flags);
967 DEBUGFS_ADD(aid);
968 DEBUGFS_ADD(num_ps_buf_frames);
969 DEBUGFS_ADD(last_seq_ctrl);
970 DEBUGFS_ADD(agg_status);
971 DEBUGFS_ADD(ht_capa);
972 DEBUGFS_ADD(vht_capa);
973 DEBUGFS_ADD(he_capa);
974
975 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
976 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
977 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
978
979 if (local->ops->wake_tx_queue)
980 DEBUGFS_ADD(aqm);
981
982 if (wiphy_ext_feature_isset(local->hw.wiphy,
983 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
984 DEBUGFS_ADD(airtime);
985
986 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
987 debugfs_create_x32("driver_buffered_tids", 0400,
988 sta->debugfs_dir,
989 (u32 *)&sta->driver_buffered_tids);
990 else
991 debugfs_create_x64("driver_buffered_tids", 0400,
992 sta->debugfs_dir,
993 (u64 *)&sta->driver_buffered_tids);
994
995 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
996 }
997
998 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
999 {
1000 debugfs_remove_recursive(sta->debugfs_dir);
1001 sta->debugfs_dir = NULL;
1002 }
Linux with added FPC-III support