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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 - 2022 Intel Corporation
9 */
10
11#include <linux/debugfs.h>
12#include <linux/ieee80211.h>
13#include "ieee80211_i.h"
14#include "debugfs.h"
15#include "debugfs_sta.h"
16#include "sta_info.h"
17#include "driver-ops.h"
18
19/* sta attributtes */
20
21#define STA_READ(name, field, format_string) \
22static ssize_t sta_ ##name## _read(struct file *file, \
23 char __user *userbuf, \
24 size_t count, loff_t *ppos) \
25{ \
26 struct sta_info *sta = file->private_data; \
27 return mac80211_format_buffer(userbuf, count, ppos, \
28 format_string, sta->field); \
29}
30#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
31
32#define STA_OPS(name) \
33static const struct file_operations sta_ ##name## _ops = { \
34 .read = sta_##name##_read, \
35 .open = simple_open, \
36 .llseek = generic_file_llseek, \
37}
38
39#define STA_OPS_RW(name) \
40static const struct file_operations sta_ ##name## _ops = { \
41 .read = sta_##name##_read, \
42 .write = sta_##name##_write, \
43 .open = simple_open, \
44 .llseek = generic_file_llseek, \
45}
46
47#define STA_FILE(name, field, format) \
48 STA_READ_##format(name, field) \
49 STA_OPS(name)
50
51STA_FILE(aid, sta.aid, D);
52
53static const char * const sta_flag_names[] = {
54#define FLAG(F) [WLAN_STA_##F] = #F
55 FLAG(AUTH),
56 FLAG(ASSOC),
57 FLAG(PS_STA),
58 FLAG(AUTHORIZED),
59 FLAG(SHORT_PREAMBLE),
60 FLAG(WDS),
61 FLAG(CLEAR_PS_FILT),
62 FLAG(MFP),
63 FLAG(BLOCK_BA),
64 FLAG(PS_DRIVER),
65 FLAG(PSPOLL),
66 FLAG(TDLS_PEER),
67 FLAG(TDLS_PEER_AUTH),
68 FLAG(TDLS_INITIATOR),
69 FLAG(TDLS_CHAN_SWITCH),
70 FLAG(TDLS_OFF_CHANNEL),
71 FLAG(TDLS_WIDER_BW),
72 FLAG(UAPSD),
73 FLAG(SP),
74 FLAG(4ADDR_EVENT),
75 FLAG(INSERTED),
76 FLAG(RATE_CONTROL),
77 FLAG(TOFFSET_KNOWN),
78 FLAG(MPSP_OWNER),
79 FLAG(MPSP_RECIPIENT),
80 FLAG(PS_DELIVER),
81 FLAG(USES_ENCRYPTION),
82 FLAG(DECAP_OFFLOAD),
83#undef FLAG
84};
85
86static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
87 size_t count, loff_t *ppos)
88{
89 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
90 char *end = buf + sizeof(buf) - 1;
91 struct sta_info *sta = file->private_data;
92 unsigned int flg;
93
94 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
95
96 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
97 if (test_sta_flag(sta, flg))
98 pos += scnprintf(pos, end - pos, "%s\n",
99 sta_flag_names[flg]);
100 }
101
102 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
103}
104STA_OPS(flags);
105
106static ssize_t sta_num_ps_buf_frames_read(struct file *file,
107 char __user *userbuf,
108 size_t count, loff_t *ppos)
109{
110 struct sta_info *sta = file->private_data;
111 char buf[17*IEEE80211_NUM_ACS], *p = buf;
112 int ac;
113
114 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
115 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
116 skb_queue_len(&sta->ps_tx_buf[ac]) +
117 skb_queue_len(&sta->tx_filtered[ac]));
118 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
119}
120STA_OPS(num_ps_buf_frames);
121
122static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
123 size_t count, loff_t *ppos)
124{
125 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
126 int i;
127 struct sta_info *sta = file->private_data;
128 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
129 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
130 le16_to_cpu(sta->last_seq_ctrl[i]));
131 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
132 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
133}
134STA_OPS(last_seq_ctrl);
135
136#define AQM_TXQ_ENTRY_LEN 130
137
138static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
139 size_t count, loff_t *ppos)
140{
141 struct sta_info *sta = file->private_data;
142 struct ieee80211_local *local = sta->local;
143 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
144 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
145 struct txq_info *txqi;
146 ssize_t rv;
147 int i;
148
149 if (!buf)
150 return -ENOMEM;
151
152 spin_lock_bh(&local->fq.lock);
153 rcu_read_lock();
154
155 p += scnprintf(p,
156 bufsz + buf - p,
157 "target %uus interval %uus ecn %s\n",
158 codel_time_to_us(sta->cparams.target),
159 codel_time_to_us(sta->cparams.interval),
160 sta->cparams.ecn ? "yes" : "no");
161 p += scnprintf(p,
162 bufsz + buf - p,
163 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
164
165 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
166 if (!sta->sta.txq[i])
167 continue;
168 txqi = to_txq_info(sta->sta.txq[i]);
169 p += scnprintf(p, bufsz + buf - p,
170 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s%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 test_bit(IEEE80211_TXQ_DIRTY, &txqi->flags) ? " DIRTY" : "");
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}
196STA_OPS(aqm);
197
198static 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 = 400;
204 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
205 u64 rx_airtime = 0, tx_airtime = 0;
206 s32 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: %d us VI: %d us BE: %d us BK: %d us\n",
224 rx_airtime, tx_airtime, sta->airtime_weight,
225 deficit[0], deficit[1], deficit[2], deficit[3]);
226
227 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
228 kfree(buf);
229 return rv;
230}
231
232static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
233 size_t count, loff_t *ppos)
234{
235 struct sta_info *sta = file->private_data;
236 struct ieee80211_local *local = sta->sdata->local;
237 int ac;
238
239 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
240 spin_lock_bh(&local->active_txq_lock[ac]);
241 sta->airtime[ac].rx_airtime = 0;
242 sta->airtime[ac].tx_airtime = 0;
243 sta->airtime[ac].deficit = sta->airtime_weight;
244 spin_unlock_bh(&local->active_txq_lock[ac]);
245 }
246
247 return count;
248}
249STA_OPS_RW(airtime);
250
251static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
252 size_t count, loff_t *ppos)
253{
254 struct sta_info *sta = file->private_data;
255 struct ieee80211_local *local = sta->sdata->local;
256 size_t bufsz = 400;
257 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
258 u32 q_depth[IEEE80211_NUM_ACS];
259 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
260 ssize_t rv;
261 int ac;
262
263 if (!buf)
264 return -ENOMEM;
265
266 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
267 spin_lock_bh(&local->active_txq_lock[ac]);
268 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
269 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
270 spin_unlock_bh(&local->active_txq_lock[ac]);
271 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
272 }
273
274 p += scnprintf(p, bufsz + buf - p,
275 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
276 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
277 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
278 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
279 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
280
281 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
282 kfree(buf);
283 return rv;
284}
285
286static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
287 size_t count, loff_t *ppos)
288{
289 struct sta_info *sta = file->private_data;
290 u32 ac, q_limit_l, q_limit_h;
291 char _buf[100] = {}, *buf = _buf;
292
293 if (count > sizeof(_buf))
294 return -EINVAL;
295
296 if (copy_from_user(buf, userbuf, count))
297 return -EFAULT;
298
299 buf[sizeof(_buf) - 1] = '\0';
300 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
301 != 3)
302 return -EINVAL;
303
304 if (ac >= IEEE80211_NUM_ACS)
305 return -EINVAL;
306
307 sta->airtime[ac].aql_limit_low = q_limit_l;
308 sta->airtime[ac].aql_limit_high = q_limit_h;
309
310 return count;
311}
312STA_OPS_RW(aql);
313
314
315static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
316 size_t count, loff_t *ppos)
317{
318 char *buf, *p;
319 ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
320 int i;
321 struct sta_info *sta = file->private_data;
322 struct tid_ampdu_rx *tid_rx;
323 struct tid_ampdu_tx *tid_tx;
324 ssize_t ret;
325
326 buf = kzalloc(bufsz, GFP_KERNEL);
327 if (!buf)
328 return -ENOMEM;
329 p = buf;
330
331 rcu_read_lock();
332
333 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
334 sta->ampdu_mlme.dialog_token_allocator + 1);
335 p += scnprintf(p, bufsz + buf - p,
336 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
337
338 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
339 bool tid_rx_valid;
340
341 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
342 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
343 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
344
345 p += scnprintf(p, bufsz + buf - p, "%02d", i);
346 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
347 tid_rx_valid);
348 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
349 tid_rx_valid ?
350 sta->ampdu_mlme.tid_rx_token[i] : 0);
351 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
352 tid_rx ? tid_rx->ssn : 0);
353
354 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
355 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
356 tid_tx ? tid_tx->dialog_token : 0);
357 p += scnprintf(p, bufsz + buf - p, "\t%03d",
358 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
359 p += scnprintf(p, bufsz + buf - p, "\n");
360 }
361 rcu_read_unlock();
362
363 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
364 kfree(buf);
365 return ret;
366}
367
368static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
369 size_t count, loff_t *ppos)
370{
371 char _buf[25] = {}, *buf = _buf;
372 struct sta_info *sta = file->private_data;
373 bool start, tx;
374 unsigned long tid;
375 char *pos;
376 int ret, timeout = 5000;
377
378 if (count > sizeof(_buf))
379 return -EINVAL;
380
381 if (copy_from_user(buf, userbuf, count))
382 return -EFAULT;
383
384 buf[sizeof(_buf) - 1] = '\0';
385 pos = buf;
386 buf = strsep(&pos, " ");
387 if (!buf)
388 return -EINVAL;
389
390 if (!strcmp(buf, "tx"))
391 tx = true;
392 else if (!strcmp(buf, "rx"))
393 tx = false;
394 else
395 return -EINVAL;
396
397 buf = strsep(&pos, " ");
398 if (!buf)
399 return -EINVAL;
400 if (!strcmp(buf, "start")) {
401 start = true;
402 if (!tx)
403 return -EINVAL;
404 } else if (!strcmp(buf, "stop")) {
405 start = false;
406 } else {
407 return -EINVAL;
408 }
409
410 buf = strsep(&pos, " ");
411 if (!buf)
412 return -EINVAL;
413 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
414 buf = strsep(&pos, " ");
415 if (!buf || !tx || !start)
416 return -EINVAL;
417 }
418
419 ret = kstrtoul(buf, 0, &tid);
420 if (ret || tid >= IEEE80211_NUM_TIDS)
421 return -EINVAL;
422
423 if (tx) {
424 if (start)
425 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
426 timeout);
427 else
428 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
429 } else {
430 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
431 3, true);
432 ret = 0;
433 }
434
435 return ret ?: count;
436}
437STA_OPS_RW(agg_status);
438
439/* link sta attributes */
440#define LINK_STA_OPS(name) \
441static const struct file_operations link_sta_ ##name## _ops = { \
442 .read = link_sta_##name##_read, \
443 .open = simple_open, \
444 .llseek = generic_file_llseek, \
445}
446
447static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
448 size_t count, loff_t *ppos)
449{
450 struct link_sta_info *link_sta = file->private_data;
451 u8 mac[3 * ETH_ALEN + 1];
452
453 snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
454
455 return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN);
456}
457
458LINK_STA_OPS(addr);
459
460static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
461 size_t count, loff_t *ppos)
462{
463#define PRINT_HT_CAP(_cond, _str) \
464 do { \
465 if (_cond) \
466 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
467 } while (0)
468 char *buf, *p;
469 int i;
470 ssize_t bufsz = 512;
471 struct link_sta_info *link_sta = file->private_data;
472 struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
473 ssize_t ret;
474
475 buf = kzalloc(bufsz, GFP_KERNEL);
476 if (!buf)
477 return -ENOMEM;
478 p = buf;
479
480 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
481 htc->ht_supported ? "" : "not ");
482 if (htc->ht_supported) {
483 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
484
485 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
486 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
487 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
488
489 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
490 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
491 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
492
493 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
494 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
495 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
496 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
497
498 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
499 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
500 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
501 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
502
503 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
504
505 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
506 "3839 bytes");
507 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
508 "7935 bytes");
509
510 /*
511 * For beacons and probe response this would mean the BSS
512 * does or does not allow the usage of DSSS/CCK HT40.
513 * Otherwise it means the STA does or does not use
514 * DSSS/CCK HT40.
515 */
516 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
517 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
518
519 /* BIT(13) is reserved */
520
521 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
522
523 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
524
525 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
526 htc->ampdu_factor, htc->ampdu_density);
527 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
528
529 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
530 p += scnprintf(p, bufsz + buf - p, " %.2x",
531 htc->mcs.rx_mask[i]);
532 p += scnprintf(p, bufsz + buf - p, "\n");
533
534 /* If not set this is meaningless */
535 if (le16_to_cpu(htc->mcs.rx_highest)) {
536 p += scnprintf(p, bufsz + buf - p,
537 "MCS rx highest: %d Mbps\n",
538 le16_to_cpu(htc->mcs.rx_highest));
539 }
540
541 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
542 htc->mcs.tx_params);
543 }
544
545 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
546 kfree(buf);
547 return ret;
548}
549LINK_STA_OPS(ht_capa);
550
551static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
552 size_t count, loff_t *ppos)
553{
554 char *buf, *p;
555 struct link_sta_info *link_sta = file->private_data;
556 struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
557 ssize_t ret;
558 ssize_t bufsz = 512;
559
560 buf = kzalloc(bufsz, GFP_KERNEL);
561 if (!buf)
562 return -ENOMEM;
563 p = buf;
564
565 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
566 vhtc->vht_supported ? "" : "not ");
567 if (vhtc->vht_supported) {
568 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
569 vhtc->cap);
570#define PFLAG(a, b) \
571 do { \
572 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
573 p += scnprintf(p, bufsz + buf - p, \
574 "\t\t%s\n", b); \
575 } while (0)
576
577 switch (vhtc->cap & 0x3) {
578 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
579 p += scnprintf(p, bufsz + buf - p,
580 "\t\tMAX-MPDU-3895\n");
581 break;
582 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
583 p += scnprintf(p, bufsz + buf - p,
584 "\t\tMAX-MPDU-7991\n");
585 break;
586 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
587 p += scnprintf(p, bufsz + buf - p,
588 "\t\tMAX-MPDU-11454\n");
589 break;
590 default:
591 p += scnprintf(p, bufsz + buf - p,
592 "\t\tMAX-MPDU-UNKNOWN\n");
593 }
594 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
595 case 0:
596 p += scnprintf(p, bufsz + buf - p,
597 "\t\t80Mhz\n");
598 break;
599 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
600 p += scnprintf(p, bufsz + buf - p,
601 "\t\t160Mhz\n");
602 break;
603 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
604 p += scnprintf(p, bufsz + buf - p,
605 "\t\t80+80Mhz\n");
606 break;
607 default:
608 p += scnprintf(p, bufsz + buf - p,
609 "\t\tUNKNOWN-MHZ: 0x%x\n",
610 (vhtc->cap >> 2) & 0x3);
611 }
612 PFLAG(RXLDPC, "RXLDPC");
613 PFLAG(SHORT_GI_80, "SHORT-GI-80");
614 PFLAG(SHORT_GI_160, "SHORT-GI-160");
615 PFLAG(TXSTBC, "TXSTBC");
616 p += scnprintf(p, bufsz + buf - p,
617 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
618 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
619 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
620 p += scnprintf(p, bufsz + buf - p,
621 "\t\tBEAMFORMEE-STS: 0x%x\n",
622 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
623 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
624 p += scnprintf(p, bufsz + buf - p,
625 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
626 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
627 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
628 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
629 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
630 PFLAG(VHT_TXOP_PS, "TXOP-PS");
631 PFLAG(HTC_VHT, "HTC-VHT");
632 p += scnprintf(p, bufsz + buf - p,
633 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
634 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
635 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
636 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
637 "LINK-ADAPTATION-VHT-UNSOL-MFB");
638 p += scnprintf(p, bufsz + buf - p,
639 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
640 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
641 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
642 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
643
644 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
645 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
646 if (vhtc->vht_mcs.rx_highest)
647 p += scnprintf(p, bufsz + buf - p,
648 "MCS RX highest: %d Mbps\n",
649 le16_to_cpu(vhtc->vht_mcs.rx_highest));
650 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
651 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
652 if (vhtc->vht_mcs.tx_highest)
653 p += scnprintf(p, bufsz + buf - p,
654 "MCS TX highest: %d Mbps\n",
655 le16_to_cpu(vhtc->vht_mcs.tx_highest));
656#undef PFLAG
657 }
658
659 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
660 kfree(buf);
661 return ret;
662}
663LINK_STA_OPS(vht_capa);
664
665static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
666 size_t count, loff_t *ppos)
667{
668 char *buf, *p;
669 size_t buf_sz = PAGE_SIZE;
670 struct link_sta_info *link_sta = file->private_data;
671 struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
672 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
673 u8 ppe_size;
674 u8 *cap;
675 int i;
676 ssize_t ret;
677
678 buf = kmalloc(buf_sz, GFP_KERNEL);
679 if (!buf)
680 return -ENOMEM;
681 p = buf;
682
683 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
684 hec->has_he ? "" : "not ");
685 if (!hec->has_he)
686 goto out;
687
688 cap = hec->he_cap_elem.mac_cap_info;
689 p += scnprintf(p, buf_sz + buf - p,
690 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
691 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
692
693#define PRINT(fmt, ...) \
694 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
695 ##__VA_ARGS__)
696
697#define PFLAG(t, n, a, b) \
698 do { \
699 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
700 PRINT("%s", b); \
701 } while (0)
702
703#define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
704 do { \
705 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
706 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
707 PRINT(fmt, (s << idx) + (m * idx)); \
708 } while (0)
709
710#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
711 do { \
712 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
713 PRINT("%s", b); \
714 break; \
715 } \
716 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
717 } while (0)
718
719 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
720 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
721 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
722 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
723 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
724 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
725 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
726
727 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
728 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
729 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
730 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
731 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
732 "MULTI-TID-AGG-RX-QOS-%d");
733
734 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
735 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
736 case 0:
737 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
738 break;
739 case 1:
740 PRINT("LINK-ADAPTATION-RESERVED");
741 break;
742 case 2:
743 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
744 break;
745 case 3:
746 PRINT("LINK-ADAPTATION-BOTH");
747 break;
748 }
749 }
750
751 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
752 PFLAG(MAC, 2, TRS, "TRS");
753 PFLAG(MAC, 2, BSR, "BSR");
754 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
755 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
756 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
757 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
758
759 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
760 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
761
762 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
763 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
764 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
765 break;
766 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
767 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
768 break;
769 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
770 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
771 break;
772 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
773 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
774 break;
775 }
776
777 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
778 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
779 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
780
781 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
782 PFLAG(MAC, 4, QTP, "QTP");
783 PFLAG(MAC, 4, BQR, "BQR");
784 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
785 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
786 PFLAG(MAC, 4, OPS, "OPS");
787 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
788
789 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
790
791 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
792 "SUBCHAN-SELECTIVE-TRANSMISSION");
793 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
794 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
795 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
796 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
797 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
798
799 cap = hec->he_cap_elem.phy_cap_info;
800 p += scnprintf(p, buf_sz + buf - p,
801 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
802 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
803 cap[7], cap[8], cap[9], cap[10]);
804
805 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
806 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
807 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
808 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
809 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
810 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
811 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
812 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
813 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
814 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
815 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
816 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
817
818 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
819 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
820 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
821 break;
822 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
823 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
824 break;
825 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
826 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
827 break;
828 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
829 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
830 break;
831 }
832
833 PFLAG(PHY, 1, DEVICE_CLASS_A,
834 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
835 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
836 "LDPC-CODING-IN-PAYLOAD");
837 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
838 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
839 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
840
841 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
842 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
843 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
844 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
845 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
846 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
847 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
848
849 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
850 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
851 PRINT("DCM-MAX-CONST-TX-NO-DCM");
852 break;
853 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
854 PRINT("DCM-MAX-CONST-TX-BPSK");
855 break;
856 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
857 PRINT("DCM-MAX-CONST-TX-QPSK");
858 break;
859 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
860 PRINT("DCM-MAX-CONST-TX-16-QAM");
861 break;
862 }
863
864 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
865 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
866
867 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
868 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
869 PRINT("DCM-MAX-CONST-RX-NO-DCM");
870 break;
871 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
872 PRINT("DCM-MAX-CONST-RX-BPSK");
873 break;
874 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
875 PRINT("DCM-MAX-CONST-RX-QPSK");
876 break;
877 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
878 PRINT("DCM-MAX-CONST-RX-16-QAM");
879 break;
880 }
881
882 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
883 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
884 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
885 "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
886 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
887
888 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
889 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
890
891 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
892 "BEAMFORMEE-MAX-STS-UNDER-%d");
893 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
894 "BEAMFORMEE-MAX-STS-ABOVE-%d");
895
896 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
897 "NUM-SND-DIM-UNDER-80MHZ-%d");
898 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
899 "NUM-SND-DIM-ABOVE-80MHZ-%d");
900 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
901 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
902
903 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
904 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
905 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
906 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
907 "MU-BEAMFORMING-PARTIAL-BW-FB");
908 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
909 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
910 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
911 "PARTIAL-BANDWIDTH-DL-MUMIMO");
912 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
913
914 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
915 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
916 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
917 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
918 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
919 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
920 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
921
922 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
923 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
924 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
925 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
926 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
927 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
928 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
929 "HE-ER-SU-1XLTF-AND-08-US-GI");
930 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
931 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
932
933 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
934 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
935 PRINT("DCM-MAX-RU-242");
936 break;
937 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
938 PRINT("DCM-MAX-RU-484");
939 break;
940 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
941 PRINT("DCM-MAX-RU-996");
942 break;
943 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
944 PRINT("DCM-MAX-RU-2x996");
945 break;
946 }
947
948 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
949 "LONGER-THAN-16-SIGB-OFDM-SYM");
950 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
951 "NON-TRIGGERED-CQI-FEEDBACK");
952 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
953 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
954 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
955 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
956 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
957 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
958 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
959 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
960
961 switch (u8_get_bits(cap[9],
962 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
963 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
964 PRINT("NOMINAL-PACKET-PADDING-0US");
965 break;
966 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
967 PRINT("NOMINAL-PACKET-PADDING-8US");
968 break;
969 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
970 PRINT("NOMINAL-PACKET-PADDING-16US");
971 break;
972 }
973
974#undef PFLAG_RANGE_DEFAULT
975#undef PFLAG_RANGE
976#undef PFLAG
977
978#define PRINT_NSS_SUPP(f, n) \
979 do { \
980 int _i; \
981 u16 v = le16_to_cpu(nss->f); \
982 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
983 for (_i = 0; _i < 8; _i += 2) { \
984 switch ((v >> _i) & 0x3) { \
985 case 0: \
986 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
987 break; \
988 case 1: \
989 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
990 break; \
991 case 2: \
992 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
993 break; \
994 case 3: \
995 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
996 break; \
997 } \
998 } \
999 } while (0)
1000
1001 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1002 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1003
1004 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1005 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1006 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1007 }
1008
1009 if (cap[0] &
1010 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1011 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1012 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1013 }
1014
1015#undef PRINT_NSS_SUPP
1016#undef PRINT
1017
1018 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1019 goto out;
1020
1021 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1022 hec->ppe_thres[0]);
1023
1024 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1025 for (i = 1; i < ppe_size; i++) {
1026 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1027 hec->ppe_thres[i]);
1028 }
1029 p += scnprintf(p, buf_sz + buf - p, "\n");
1030
1031out:
1032 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1033 kfree(buf);
1034 return ret;
1035}
1036LINK_STA_OPS(he_capa);
1037
1038#define DEBUGFS_ADD(name) \
1039 debugfs_create_file(#name, 0400, \
1040 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1041
1042#define DEBUGFS_ADD_COUNTER(name, field) \
1043 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1044
1045void ieee80211_sta_debugfs_add(struct sta_info *sta)
1046{
1047 struct ieee80211_local *local = sta->local;
1048 struct ieee80211_sub_if_data *sdata = sta->sdata;
1049 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1050 u8 mac[3*ETH_ALEN];
1051
1052 if (!stations_dir)
1053 return;
1054
1055 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1056
1057 /*
1058 * This might fail due to a race condition:
1059 * When mac80211 unlinks a station, the debugfs entries
1060 * remain, but it is already possible to link a new
1061 * station with the same address which triggers adding
1062 * it to debugfs; therefore, if the old station isn't
1063 * destroyed quickly enough the old station's debugfs
1064 * dir might still be around.
1065 */
1066 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1067
1068 DEBUGFS_ADD(flags);
1069 DEBUGFS_ADD(aid);
1070 DEBUGFS_ADD(num_ps_buf_frames);
1071 DEBUGFS_ADD(last_seq_ctrl);
1072 DEBUGFS_ADD(agg_status);
1073 /* FIXME: Kept here as the statistics are only done on the deflink */
1074 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1075
1076 DEBUGFS_ADD(aqm);
1077 DEBUGFS_ADD(airtime);
1078
1079 if (wiphy_ext_feature_isset(local->hw.wiphy,
1080 NL80211_EXT_FEATURE_AQL))
1081 DEBUGFS_ADD(aql);
1082
1083 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1084 &sta->driver_buffered_tids);
1085
1086 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1087}
1088
1089void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1090{
1091 debugfs_remove_recursive(sta->debugfs_dir);
1092 sta->debugfs_dir = NULL;
1093}
1094
1095#undef DEBUGFS_ADD
1096#undef DEBUGFS_ADD_COUNTER
1097
1098#define DEBUGFS_ADD(name) \
1099 debugfs_create_file(#name, 0400, \
1100 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1101#define DEBUGFS_ADD_COUNTER(name, field) \
1102 debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1103
1104void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1105{
1106 if (WARN_ON(!link_sta->sta->debugfs_dir))
1107 return;
1108
1109 /* For non-MLO, leave the files in the main directory. */
1110 if (link_sta->sta->sta.valid_links) {
1111 char link_dir_name[10];
1112
1113 snprintf(link_dir_name, sizeof(link_dir_name),
1114 "link-%d", link_sta->link_id);
1115
1116 link_sta->debugfs_dir =
1117 debugfs_create_dir(link_dir_name,
1118 link_sta->sta->debugfs_dir);
1119
1120 DEBUGFS_ADD(addr);
1121 } else {
1122 if (WARN_ON(link_sta != &link_sta->sta->deflink))
1123 return;
1124
1125 link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1126 }
1127
1128 DEBUGFS_ADD(ht_capa);
1129 DEBUGFS_ADD(vht_capa);
1130 DEBUGFS_ADD(he_capa);
1131
1132 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1133 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1134}
1135
1136void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1137{
1138 if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1139 link_sta->debugfs_dir = NULL;
1140 return;
1141 }
1142
1143 if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1144 WARN_ON(link_sta != &link_sta->sta->deflink);
1145 link_sta->sta->debugfs_dir = NULL;
1146 return;
1147 }
1148
1149 debugfs_remove_recursive(link_sta->debugfs_dir);
1150 link_sta->debugfs_dir = NULL;
1151}
1152
1153void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1154{
1155 if (WARN_ON(!link_sta->debugfs_dir))
1156 return;
1157
1158 drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1159 link_sta->pub, link_sta->debugfs_dir);
1160}
1161
1162void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1163{
1164 if (!link_sta->debugfs_dir)
1165 return;
1166
1167 if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1168 return;
1169
1170 /* Recreate the directory excluding the driver data */
1171 debugfs_remove_recursive(link_sta->debugfs_dir);
1172 link_sta->debugfs_dir = NULL;
1173
1174 ieee80211_link_sta_debugfs_add(link_sta);
1175}