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 - 2021 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) \
22 static 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) \
33 static 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) \
40 static 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
51 STA_FILE(aid, sta.aid, D);
52
53 static 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
sta_flags_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)86 static 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 }
104 STA_OPS(flags);
105
sta_num_ps_buf_frames_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)106 static 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 }
120 STA_OPS(num_ps_buf_frames);
121
sta_last_seq_ctrl_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)122 static 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 }
134 STA_OPS(last_seq_ctrl);
135
136 #define AQM_TXQ_ENTRY_LEN 130
137
sta_aqm_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)138 static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
139 size_t count, loff_t *ppos)
140 {
141 struct sta_info *sta = file->private_data;
142 struct ieee80211_local *local = sta->local;
143 size_t bufsz = AQM_TXQ_ENTRY_LEN * (IEEE80211_NUM_TIDS + 2);
144 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
145 struct txq_info *txqi;
146 ssize_t rv;
147 int i;
148
149 if (!buf)
150 return -ENOMEM;
151
152 spin_lock_bh(&local->fq.lock);
153 rcu_read_lock();
154
155 p += scnprintf(p,
156 bufsz + buf - p,
157 "target %uus interval %uus ecn %s\n",
158 codel_time_to_us(sta->cparams.target),
159 codel_time_to_us(sta->cparams.interval),
160 sta->cparams.ecn ? "yes" : "no");
161 p += scnprintf(p,
162 bufsz + buf - p,
163 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
164
165 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
166 if (!sta->sta.txq[i])
167 continue;
168 txqi = to_txq_info(sta->sta.txq[i]);
169 p += scnprintf(p, bufsz + buf - p,
170 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
171 txqi->txq.tid,
172 txqi->txq.ac,
173 txqi->tin.backlog_bytes,
174 txqi->tin.backlog_packets,
175 txqi->tin.flows,
176 txqi->cstats.drop_count,
177 txqi->cstats.ecn_mark,
178 txqi->tin.overlimit,
179 txqi->tin.collisions,
180 txqi->tin.tx_bytes,
181 txqi->tin.tx_packets,
182 txqi->flags,
183 test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ? "STOP" : "RUN",
184 test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags) ? " AMPDU" : "",
185 test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags) ? " NO-AMSDU" : "");
186 }
187
188 rcu_read_unlock();
189 spin_unlock_bh(&local->fq.lock);
190
191 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
192 kfree(buf);
193 return rv;
194 }
195 STA_OPS(aqm);
196
sta_airtime_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)197 static ssize_t sta_airtime_read(struct file *file, char __user *userbuf,
198 size_t count, loff_t *ppos)
199 {
200 struct sta_info *sta = file->private_data;
201 struct ieee80211_local *local = sta->sdata->local;
202 size_t bufsz = 400;
203 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
204 u64 rx_airtime = 0, tx_airtime = 0;
205 u64 v_t[IEEE80211_NUM_ACS];
206 ssize_t rv;
207 int ac;
208
209 if (!buf)
210 return -ENOMEM;
211
212 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
213 spin_lock_bh(&local->airtime[ac].lock);
214 rx_airtime += sta->airtime[ac].rx_airtime;
215 tx_airtime += sta->airtime[ac].tx_airtime;
216 v_t[ac] = sta->airtime[ac].v_t;
217 spin_unlock_bh(&local->airtime[ac].lock);
218 }
219
220 p += scnprintf(p, bufsz + buf - p,
221 "RX: %llu us\nTX: %llu us\nWeight: %u\n"
222 "Virt-T: VO: %lld us VI: %lld us BE: %lld us BK: %lld us\n",
223 rx_airtime, tx_airtime, sta->airtime[0].weight,
224 v_t[0], v_t[1], v_t[2], v_t[3]);
225
226 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
227 kfree(buf);
228 return rv;
229 }
230
sta_airtime_write(struct file * file,const char __user * userbuf,size_t count,loff_t * ppos)231 static ssize_t sta_airtime_write(struct file *file, const char __user *userbuf,
232 size_t count, loff_t *ppos)
233 {
234 struct sta_info *sta = file->private_data;
235 struct ieee80211_local *local = sta->sdata->local;
236 int ac;
237
238 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
239 spin_lock_bh(&local->airtime[ac].lock);
240 sta->airtime[ac].rx_airtime = 0;
241 sta->airtime[ac].tx_airtime = 0;
242 sta->airtime[ac].v_t = 0;
243 spin_unlock_bh(&local->airtime[ac].lock);
244 }
245
246 return count;
247 }
248 STA_OPS_RW(airtime);
249
sta_aql_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)250 static ssize_t sta_aql_read(struct file *file, char __user *userbuf,
251 size_t count, loff_t *ppos)
252 {
253 struct sta_info *sta = file->private_data;
254 struct ieee80211_local *local = sta->sdata->local;
255 size_t bufsz = 400;
256 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
257 u32 q_depth[IEEE80211_NUM_ACS];
258 u32 q_limit_l[IEEE80211_NUM_ACS], q_limit_h[IEEE80211_NUM_ACS];
259 ssize_t rv;
260 int ac;
261
262 if (!buf)
263 return -ENOMEM;
264
265 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
266 spin_lock_bh(&local->airtime[ac].lock);
267 q_limit_l[ac] = sta->airtime[ac].aql_limit_low;
268 q_limit_h[ac] = sta->airtime[ac].aql_limit_high;
269 spin_unlock_bh(&local->airtime[ac].lock);
270 q_depth[ac] = atomic_read(&sta->airtime[ac].aql_tx_pending);
271 }
272
273 p += scnprintf(p, bufsz + buf - p,
274 "Q depth: VO: %u us VI: %u us BE: %u us BK: %u us\n"
275 "Q limit[low/high]: VO: %u/%u VI: %u/%u BE: %u/%u BK: %u/%u\n",
276 q_depth[0], q_depth[1], q_depth[2], q_depth[3],
277 q_limit_l[0], q_limit_h[0], q_limit_l[1], q_limit_h[1],
278 q_limit_l[2], q_limit_h[2], q_limit_l[3], q_limit_h[3]);
279
280 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
281 kfree(buf);
282 return rv;
283 }
284
sta_aql_write(struct file * file,const char __user * userbuf,size_t count,loff_t * ppos)285 static ssize_t sta_aql_write(struct file *file, const char __user *userbuf,
286 size_t count, loff_t *ppos)
287 {
288 struct sta_info *sta = file->private_data;
289 u32 ac, q_limit_l, q_limit_h;
290 char _buf[100] = {}, *buf = _buf;
291
292 if (count > sizeof(_buf))
293 return -EINVAL;
294
295 if (copy_from_user(buf, userbuf, count))
296 return -EFAULT;
297
298 buf[sizeof(_buf) - 1] = '\0';
299 if (sscanf(buf, "limit %u %u %u", &ac, &q_limit_l, &q_limit_h)
300 != 3)
301 return -EINVAL;
302
303 if (ac >= IEEE80211_NUM_ACS)
304 return -EINVAL;
305
306 sta->airtime[ac].aql_limit_low = q_limit_l;
307 sta->airtime[ac].aql_limit_high = q_limit_h;
308
309 return count;
310 }
311 STA_OPS_RW(aql);
312
313
sta_agg_status_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)314 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
315 size_t count, loff_t *ppos)
316 {
317 char *buf, *p;
318 ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
319 int i;
320 struct sta_info *sta = file->private_data;
321 struct tid_ampdu_rx *tid_rx;
322 struct tid_ampdu_tx *tid_tx;
323 ssize_t ret;
324
325 buf = kzalloc(bufsz, GFP_KERNEL);
326 if (!buf)
327 return -ENOMEM;
328 p = buf;
329
330 rcu_read_lock();
331
332 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
333 sta->ampdu_mlme.dialog_token_allocator + 1);
334 p += scnprintf(p, bufsz + buf - p,
335 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
336
337 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
338 bool tid_rx_valid;
339
340 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
341 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
342 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
343
344 p += scnprintf(p, bufsz + buf - p, "%02d", i);
345 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
346 tid_rx_valid);
347 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
348 tid_rx_valid ?
349 sta->ampdu_mlme.tid_rx_token[i] : 0);
350 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
351 tid_rx ? tid_rx->ssn : 0);
352
353 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
354 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
355 tid_tx ? tid_tx->dialog_token : 0);
356 p += scnprintf(p, bufsz + buf - p, "\t%03d",
357 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
358 p += scnprintf(p, bufsz + buf - p, "\n");
359 }
360 rcu_read_unlock();
361
362 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
363 kfree(buf);
364 return ret;
365 }
366
sta_agg_status_write(struct file * file,const char __user * userbuf,size_t count,loff_t * ppos)367 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
368 size_t count, loff_t *ppos)
369 {
370 char _buf[25] = {}, *buf = _buf;
371 struct sta_info *sta = file->private_data;
372 bool start, tx;
373 unsigned long tid;
374 char *pos;
375 int ret, timeout = 5000;
376
377 if (count > sizeof(_buf))
378 return -EINVAL;
379
380 if (copy_from_user(buf, userbuf, count))
381 return -EFAULT;
382
383 buf[sizeof(_buf) - 1] = '\0';
384 pos = buf;
385 buf = strsep(&pos, " ");
386 if (!buf)
387 return -EINVAL;
388
389 if (!strcmp(buf, "tx"))
390 tx = true;
391 else if (!strcmp(buf, "rx"))
392 tx = false;
393 else
394 return -EINVAL;
395
396 buf = strsep(&pos, " ");
397 if (!buf)
398 return -EINVAL;
399 if (!strcmp(buf, "start")) {
400 start = true;
401 if (!tx)
402 return -EINVAL;
403 } else if (!strcmp(buf, "stop")) {
404 start = false;
405 } else {
406 return -EINVAL;
407 }
408
409 buf = strsep(&pos, " ");
410 if (!buf)
411 return -EINVAL;
412 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
413 buf = strsep(&pos, " ");
414 if (!buf || !tx || !start)
415 return -EINVAL;
416 }
417
418 ret = kstrtoul(buf, 0, &tid);
419 if (ret || tid >= IEEE80211_NUM_TIDS)
420 return -EINVAL;
421
422 if (tx) {
423 if (start)
424 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
425 timeout);
426 else
427 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
428 } else {
429 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
430 3, true);
431 ret = 0;
432 }
433
434 return ret ?: count;
435 }
436 STA_OPS_RW(agg_status);
437
sta_ht_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)438 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
439 size_t count, loff_t *ppos)
440 {
441 #define PRINT_HT_CAP(_cond, _str) \
442 do { \
443 if (_cond) \
444 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
445 } while (0)
446 char *buf, *p;
447 int i;
448 ssize_t bufsz = 512;
449 struct sta_info *sta = file->private_data;
450 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
451 ssize_t ret;
452
453 buf = kzalloc(bufsz, GFP_KERNEL);
454 if (!buf)
455 return -ENOMEM;
456 p = buf;
457
458 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
459 htc->ht_supported ? "" : "not ");
460 if (htc->ht_supported) {
461 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
462
463 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
464 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
465 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
466
467 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
468 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
469 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
470
471 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
472 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
473 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
474 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
475
476 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
477 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
478 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
479 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
480
481 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
482
483 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
484 "3839 bytes");
485 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
486 "7935 bytes");
487
488 /*
489 * For beacons and probe response this would mean the BSS
490 * does or does not allow the usage of DSSS/CCK HT40.
491 * Otherwise it means the STA does or does not use
492 * DSSS/CCK HT40.
493 */
494 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
495 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
496
497 /* BIT(13) is reserved */
498
499 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
500
501 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
502
503 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
504 htc->ampdu_factor, htc->ampdu_density);
505 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
506
507 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
508 p += scnprintf(p, bufsz + buf - p, " %.2x",
509 htc->mcs.rx_mask[i]);
510 p += scnprintf(p, bufsz + buf - p, "\n");
511
512 /* If not set this is meaningless */
513 if (le16_to_cpu(htc->mcs.rx_highest)) {
514 p += scnprintf(p, bufsz + buf - p,
515 "MCS rx highest: %d Mbps\n",
516 le16_to_cpu(htc->mcs.rx_highest));
517 }
518
519 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
520 htc->mcs.tx_params);
521 }
522
523 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
524 kfree(buf);
525 return ret;
526 }
527 STA_OPS(ht_capa);
528
sta_vht_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)529 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
530 size_t count, loff_t *ppos)
531 {
532 char *buf, *p;
533 struct sta_info *sta = file->private_data;
534 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
535 ssize_t ret;
536 ssize_t bufsz = 512;
537
538 buf = kzalloc(bufsz, GFP_KERNEL);
539 if (!buf)
540 return -ENOMEM;
541 p = buf;
542
543 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
544 vhtc->vht_supported ? "" : "not ");
545 if (vhtc->vht_supported) {
546 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
547 vhtc->cap);
548 #define PFLAG(a, b) \
549 do { \
550 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
551 p += scnprintf(p, bufsz + buf - p, \
552 "\t\t%s\n", b); \
553 } while (0)
554
555 switch (vhtc->cap & 0x3) {
556 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
557 p += scnprintf(p, bufsz + buf - p,
558 "\t\tMAX-MPDU-3895\n");
559 break;
560 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
561 p += scnprintf(p, bufsz + buf - p,
562 "\t\tMAX-MPDU-7991\n");
563 break;
564 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
565 p += scnprintf(p, bufsz + buf - p,
566 "\t\tMAX-MPDU-11454\n");
567 break;
568 default:
569 p += scnprintf(p, bufsz + buf - p,
570 "\t\tMAX-MPDU-UNKNOWN\n");
571 }
572 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
573 case 0:
574 p += scnprintf(p, bufsz + buf - p,
575 "\t\t80Mhz\n");
576 break;
577 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
578 p += scnprintf(p, bufsz + buf - p,
579 "\t\t160Mhz\n");
580 break;
581 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
582 p += scnprintf(p, bufsz + buf - p,
583 "\t\t80+80Mhz\n");
584 break;
585 default:
586 p += scnprintf(p, bufsz + buf - p,
587 "\t\tUNKNOWN-MHZ: 0x%x\n",
588 (vhtc->cap >> 2) & 0x3);
589 }
590 PFLAG(RXLDPC, "RXLDPC");
591 PFLAG(SHORT_GI_80, "SHORT-GI-80");
592 PFLAG(SHORT_GI_160, "SHORT-GI-160");
593 PFLAG(TXSTBC, "TXSTBC");
594 p += scnprintf(p, bufsz + buf - p,
595 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
596 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
597 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
598 p += scnprintf(p, bufsz + buf - p,
599 "\t\tBEAMFORMEE-STS: 0x%x\n",
600 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
601 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
602 p += scnprintf(p, bufsz + buf - p,
603 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
604 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
605 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
606 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
607 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
608 PFLAG(VHT_TXOP_PS, "TXOP-PS");
609 PFLAG(HTC_VHT, "HTC-VHT");
610 p += scnprintf(p, bufsz + buf - p,
611 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
612 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
613 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
614 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
615 "LINK-ADAPTATION-VHT-UNSOL-MFB");
616 p += scnprintf(p, bufsz + buf - p,
617 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
618 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
619 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
620 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
621
622 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
623 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
624 if (vhtc->vht_mcs.rx_highest)
625 p += scnprintf(p, bufsz + buf - p,
626 "MCS RX highest: %d Mbps\n",
627 le16_to_cpu(vhtc->vht_mcs.rx_highest));
628 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
629 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
630 if (vhtc->vht_mcs.tx_highest)
631 p += scnprintf(p, bufsz + buf - p,
632 "MCS TX highest: %d Mbps\n",
633 le16_to_cpu(vhtc->vht_mcs.tx_highest));
634 #undef PFLAG
635 }
636
637 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
638 kfree(buf);
639 return ret;
640 }
641 STA_OPS(vht_capa);
642
sta_he_capa_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)643 static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
644 size_t count, loff_t *ppos)
645 {
646 char *buf, *p;
647 size_t buf_sz = PAGE_SIZE;
648 struct sta_info *sta = file->private_data;
649 struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap;
650 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
651 u8 ppe_size;
652 u8 *cap;
653 int i;
654 ssize_t ret;
655
656 buf = kmalloc(buf_sz, GFP_KERNEL);
657 if (!buf)
658 return -ENOMEM;
659 p = buf;
660
661 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
662 hec->has_he ? "" : "not ");
663 if (!hec->has_he)
664 goto out;
665
666 cap = hec->he_cap_elem.mac_cap_info;
667 p += scnprintf(p, buf_sz + buf - p,
668 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
669 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
670
671 #define PRINT(fmt, ...) \
672 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
673 ##__VA_ARGS__)
674
675 #define PFLAG(t, n, a, b) \
676 do { \
677 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
678 PRINT("%s", b); \
679 } while (0)
680
681 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
682 do { \
683 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
684 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
685 PRINT(fmt, (s << idx) + (m * idx)); \
686 } while (0)
687
688 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
689 do { \
690 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
691 PRINT("%s", b); \
692 break; \
693 } \
694 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
695 } while (0)
696
697 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
698 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
699 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
700 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
701 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
702 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
703 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
704
705 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
706 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
707 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
708 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
709 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
710 "MULTI-TID-AGG-RX-QOS-%d");
711
712 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
713 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
714 case 0:
715 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
716 break;
717 case 1:
718 PRINT("LINK-ADAPTATION-RESERVED");
719 break;
720 case 2:
721 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
722 break;
723 case 3:
724 PRINT("LINK-ADAPTATION-BOTH");
725 break;
726 }
727 }
728
729 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
730 PFLAG(MAC, 2, TRS, "TRS");
731 PFLAG(MAC, 2, BSR, "BSR");
732 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
733 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
734 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
735 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
736
737 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
738 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
739
740 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
741 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
742 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
743 break;
744 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
745 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
746 break;
747 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
748 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
749 break;
750 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
751 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
752 break;
753 }
754
755 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
756 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
757 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
758
759 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
760 PFLAG(MAC, 4, QTP, "QTP");
761 PFLAG(MAC, 4, BQR, "BQR");
762 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
763 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
764 PFLAG(MAC, 4, OPS, "OPS");
765 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
766
767 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
768
769 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
770 "SUBCHAN-SELECTIVE-TRANSMISSION");
771 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
772 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
773 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
774 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
775 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
776
777 cap = hec->he_cap_elem.phy_cap_info;
778 p += scnprintf(p, buf_sz + buf - p,
779 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
780 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
781 cap[7], cap[8], cap[9], cap[10]);
782
783 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
784 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
785 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
786 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
787 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
788 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
789 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
790 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
791 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
792 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
793 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
794 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
795
796 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
797 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
798 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
799 break;
800 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
801 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
802 break;
803 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
804 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
805 break;
806 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
807 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
808 break;
809 }
810
811 PFLAG(PHY, 1, DEVICE_CLASS_A,
812 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
813 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
814 "LDPC-CODING-IN-PAYLOAD");
815 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
816 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
817 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
818
819 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
820 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
821 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
822 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
823 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
824 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
825 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
826
827 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
828 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
829 PRINT("DCM-MAX-CONST-TX-NO-DCM");
830 break;
831 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
832 PRINT("DCM-MAX-CONST-TX-BPSK");
833 break;
834 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
835 PRINT("DCM-MAX-CONST-TX-QPSK");
836 break;
837 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
838 PRINT("DCM-MAX-CONST-TX-16-QAM");
839 break;
840 }
841
842 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
843 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
844
845 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
846 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
847 PRINT("DCM-MAX-CONST-RX-NO-DCM");
848 break;
849 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
850 PRINT("DCM-MAX-CONST-RX-BPSK");
851 break;
852 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
853 PRINT("DCM-MAX-CONST-RX-QPSK");
854 break;
855 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
856 PRINT("DCM-MAX-CONST-RX-16-QAM");
857 break;
858 }
859
860 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
861 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
862 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
863 "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
864 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
865
866 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
867 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
868
869 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
870 "BEAMFORMEE-MAX-STS-UNDER-%d");
871 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
872 "BEAMFORMEE-MAX-STS-ABOVE-%d");
873
874 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
875 "NUM-SND-DIM-UNDER-80MHZ-%d");
876 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
877 "NUM-SND-DIM-ABOVE-80MHZ-%d");
878 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
879 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
880
881 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
882 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
883 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
884 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
885 "MU-BEAMFORMING-PARTIAL-BW-FB");
886 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
887 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
888 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
889 "PARTIAL-BANDWIDTH-DL-MUMIMO");
890 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
891
892 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
893 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
894 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
895 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
896 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
897 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
898 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
899
900 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
901 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
902 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
903 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
904 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
905 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
906 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
907 "HE-ER-SU-1XLTF-AND-08-US-GI");
908 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
909 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
910
911 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
912 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
913 PRINT("DCM-MAX-RU-242");
914 break;
915 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
916 PRINT("DCM-MAX-RU-484");
917 break;
918 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
919 PRINT("DCM-MAX-RU-996");
920 break;
921 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
922 PRINT("DCM-MAX-RU-2x996");
923 break;
924 }
925
926 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
927 "LONGER-THAN-16-SIGB-OFDM-SYM");
928 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
929 "NON-TRIGGERED-CQI-FEEDBACK");
930 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
931 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
932 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
933 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
934 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
935 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
936 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
937 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
938
939 switch (cap[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
940 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
941 PRINT("NOMINAL-PACKET-PADDING-0US");
942 break;
943 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
944 PRINT("NOMINAL-PACKET-PADDING-8US");
945 break;
946 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
947 PRINT("NOMINAL-PACKET-PADDING-16US");
948 break;
949 }
950
951 #undef PFLAG_RANGE_DEFAULT
952 #undef PFLAG_RANGE
953 #undef PFLAG
954
955 #define PRINT_NSS_SUPP(f, n) \
956 do { \
957 int _i; \
958 u16 v = le16_to_cpu(nss->f); \
959 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
960 for (_i = 0; _i < 8; _i += 2) { \
961 switch ((v >> _i) & 0x3) { \
962 case 0: \
963 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
964 break; \
965 case 1: \
966 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
967 break; \
968 case 2: \
969 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
970 break; \
971 case 3: \
972 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
973 break; \
974 } \
975 } \
976 } while (0)
977
978 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
979 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
980
981 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
982 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
983 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
984 }
985
986 if (cap[0] &
987 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
988 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
989 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
990 }
991
992 #undef PRINT_NSS_SUPP
993 #undef PRINT
994
995 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
996 goto out;
997
998 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
999 hec->ppe_thres[0]);
1000
1001 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1002 for (i = 1; i < ppe_size; i++) {
1003 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1004 hec->ppe_thres[i]);
1005 }
1006 p += scnprintf(p, buf_sz + buf - p, "\n");
1007
1008 out:
1009 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1010 kfree(buf);
1011 return ret;
1012 }
1013 STA_OPS(he_capa);
1014
1015 #define DEBUGFS_ADD(name) \
1016 debugfs_create_file(#name, 0400, \
1017 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1018
1019 #define DEBUGFS_ADD_COUNTER(name, field) \
1020 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1021
ieee80211_sta_debugfs_add(struct sta_info * sta)1022 void ieee80211_sta_debugfs_add(struct sta_info *sta)
1023 {
1024 struct ieee80211_local *local = sta->local;
1025 struct ieee80211_sub_if_data *sdata = sta->sdata;
1026 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1027 u8 mac[3*ETH_ALEN];
1028
1029 if (!stations_dir)
1030 return;
1031
1032 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1033
1034 /*
1035 * This might fail due to a race condition:
1036 * When mac80211 unlinks a station, the debugfs entries
1037 * remain, but it is already possible to link a new
1038 * station with the same address which triggers adding
1039 * it to debugfs; therefore, if the old station isn't
1040 * destroyed quickly enough the old station's debugfs
1041 * dir might still be around.
1042 */
1043 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1044
1045 DEBUGFS_ADD(flags);
1046 DEBUGFS_ADD(aid);
1047 DEBUGFS_ADD(num_ps_buf_frames);
1048 DEBUGFS_ADD(last_seq_ctrl);
1049 DEBUGFS_ADD(agg_status);
1050 DEBUGFS_ADD(ht_capa);
1051 DEBUGFS_ADD(vht_capa);
1052 DEBUGFS_ADD(he_capa);
1053
1054 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1055 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1056 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
1057
1058 if (local->ops->wake_tx_queue) {
1059 DEBUGFS_ADD(aqm);
1060 DEBUGFS_ADD(airtime);
1061 }
1062
1063 if (wiphy_ext_feature_isset(local->hw.wiphy,
1064 NL80211_EXT_FEATURE_AQL))
1065 DEBUGFS_ADD(aql);
1066
1067 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1068 &sta->driver_buffered_tids);
1069
1070 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1071 }
1072
ieee80211_sta_debugfs_remove(struct sta_info * sta)1073 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1074 {
1075 debugfs_remove_recursive(sta->debugfs_dir);
1076 sta->debugfs_dir = NULL;
1077 }
1078