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 - 2023 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 attributes */
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
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
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
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
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%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 }
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 = 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
232 static 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 }
249 STA_OPS_RW(airtime);
250
251 static 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
286 static 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 }
312 STA_OPS_RW(aql);
313
314
315 static ssize_t sta_agg_status_do_read(struct wiphy *wiphy, struct file *file,
316 char *buf, size_t bufsz, void *data)
317 {
318 struct sta_info *sta = data;
319 char *p = buf;
320 int i;
321 struct tid_ampdu_rx *tid_rx;
322 struct tid_ampdu_tx *tid_tx;
323
324 p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
325 sta->ampdu_mlme.dialog_token_allocator + 1);
326 p += scnprintf(p, bufsz + buf - p,
327 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
328
329 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
330 bool tid_rx_valid;
331
332 tid_rx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_rx[i]);
333 tid_tx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_tx[i]);
334 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
335
336 p += scnprintf(p, bufsz + buf - p, "%02d", i);
337 p += scnprintf(p, bufsz + buf - p, "\t\t%x",
338 tid_rx_valid);
339 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
340 tid_rx_valid ?
341 sta->ampdu_mlme.tid_rx_token[i] : 0);
342 p += scnprintf(p, bufsz + buf - p, "\t%#.3x",
343 tid_rx ? tid_rx->ssn : 0);
344
345 p += scnprintf(p, bufsz + buf - p, "\t\t%x", !!tid_tx);
346 p += scnprintf(p, bufsz + buf - p, "\t%#.2x",
347 tid_tx ? tid_tx->dialog_token : 0);
348 p += scnprintf(p, bufsz + buf - p, "\t%03d",
349 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
350 p += scnprintf(p, bufsz + buf - p, "\n");
351 }
352
353 return p - buf;
354 }
355
356 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
357 size_t count, loff_t *ppos)
358 {
359 struct sta_info *sta = file->private_data;
360 struct wiphy *wiphy = sta->local->hw.wiphy;
361 size_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
362 char *buf = kmalloc(bufsz, GFP_KERNEL);
363 ssize_t ret;
364
365 if (!buf)
366 return -ENOMEM;
367
368 ret = wiphy_locked_debugfs_read(wiphy, file, buf, bufsz,
369 userbuf, count, ppos,
370 sta_agg_status_do_read, sta);
371 kfree(buf);
372
373 return ret;
374 }
375
376 static ssize_t sta_agg_status_do_write(struct wiphy *wiphy, struct file *file,
377 char *buf, size_t count, void *data)
378 {
379 struct sta_info *sta = data;
380 bool start, tx;
381 unsigned long tid;
382 char *pos = buf;
383 int ret, timeout = 5000;
384
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
437 static ssize_t sta_agg_status_write(struct file *file,
438 const char __user *userbuf,
439 size_t count, loff_t *ppos)
440 {
441 struct sta_info *sta = file->private_data;
442 struct wiphy *wiphy = sta->local->hw.wiphy;
443 char _buf[26];
444
445 return wiphy_locked_debugfs_write(wiphy, file, _buf, sizeof(_buf),
446 userbuf, count,
447 sta_agg_status_do_write, sta);
448 }
449 STA_OPS_RW(agg_status);
450
451 /* link sta attributes */
452 #define LINK_STA_OPS(name) \
453 static const struct file_operations link_sta_ ##name## _ops = { \
454 .read = link_sta_##name##_read, \
455 .open = simple_open, \
456 .llseek = generic_file_llseek, \
457 }
458
459 static ssize_t link_sta_addr_read(struct file *file, char __user *userbuf,
460 size_t count, loff_t *ppos)
461 {
462 struct link_sta_info *link_sta = file->private_data;
463 u8 mac[3 * ETH_ALEN + 1];
464
465 snprintf(mac, sizeof(mac), "%pM\n", link_sta->pub->addr);
466
467 return simple_read_from_buffer(userbuf, count, ppos, mac, 3 * ETH_ALEN);
468 }
469
470 LINK_STA_OPS(addr);
471
472 static ssize_t link_sta_ht_capa_read(struct file *file, char __user *userbuf,
473 size_t count, loff_t *ppos)
474 {
475 #define PRINT_HT_CAP(_cond, _str) \
476 do { \
477 if (_cond) \
478 p += scnprintf(p, bufsz + buf - p, "\t" _str "\n"); \
479 } while (0)
480 char *buf, *p;
481 int i;
482 ssize_t bufsz = 512;
483 struct link_sta_info *link_sta = file->private_data;
484 struct ieee80211_sta_ht_cap *htc = &link_sta->pub->ht_cap;
485 ssize_t ret;
486
487 buf = kzalloc(bufsz, GFP_KERNEL);
488 if (!buf)
489 return -ENOMEM;
490 p = buf;
491
492 p += scnprintf(p, bufsz + buf - p, "ht %ssupported\n",
493 htc->ht_supported ? "" : "not ");
494 if (htc->ht_supported) {
495 p += scnprintf(p, bufsz + buf - p, "cap: %#.4x\n", htc->cap);
496
497 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
498 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
499 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
500
501 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
502 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
503 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
504
505 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
506 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
507 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
508 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
509
510 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
511 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
512 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
513 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
514
515 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
516
517 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
518 "3839 bytes");
519 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
520 "7935 bytes");
521
522 /*
523 * For beacons and probe response this would mean the BSS
524 * does or does not allow the usage of DSSS/CCK HT40.
525 * Otherwise it means the STA does or does not use
526 * DSSS/CCK HT40.
527 */
528 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
529 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
530
531 /* BIT(13) is reserved */
532
533 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
534
535 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
536
537 p += scnprintf(p, bufsz + buf - p, "ampdu factor/density: %d/%d\n",
538 htc->ampdu_factor, htc->ampdu_density);
539 p += scnprintf(p, bufsz + buf - p, "MCS mask:");
540
541 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
542 p += scnprintf(p, bufsz + buf - p, " %.2x",
543 htc->mcs.rx_mask[i]);
544 p += scnprintf(p, bufsz + buf - p, "\n");
545
546 /* If not set this is meaningless */
547 if (le16_to_cpu(htc->mcs.rx_highest)) {
548 p += scnprintf(p, bufsz + buf - p,
549 "MCS rx highest: %d Mbps\n",
550 le16_to_cpu(htc->mcs.rx_highest));
551 }
552
553 p += scnprintf(p, bufsz + buf - p, "MCS tx params: %x\n",
554 htc->mcs.tx_params);
555 }
556
557 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
558 kfree(buf);
559 return ret;
560 }
561 LINK_STA_OPS(ht_capa);
562
563 static ssize_t link_sta_vht_capa_read(struct file *file, char __user *userbuf,
564 size_t count, loff_t *ppos)
565 {
566 char *buf, *p;
567 struct link_sta_info *link_sta = file->private_data;
568 struct ieee80211_sta_vht_cap *vhtc = &link_sta->pub->vht_cap;
569 ssize_t ret;
570 ssize_t bufsz = 512;
571
572 buf = kzalloc(bufsz, GFP_KERNEL);
573 if (!buf)
574 return -ENOMEM;
575 p = buf;
576
577 p += scnprintf(p, bufsz + buf - p, "VHT %ssupported\n",
578 vhtc->vht_supported ? "" : "not ");
579 if (vhtc->vht_supported) {
580 p += scnprintf(p, bufsz + buf - p, "cap: %#.8x\n",
581 vhtc->cap);
582 #define PFLAG(a, b) \
583 do { \
584 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
585 p += scnprintf(p, bufsz + buf - p, \
586 "\t\t%s\n", b); \
587 } while (0)
588
589 switch (vhtc->cap & 0x3) {
590 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
591 p += scnprintf(p, bufsz + buf - p,
592 "\t\tMAX-MPDU-3895\n");
593 break;
594 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
595 p += scnprintf(p, bufsz + buf - p,
596 "\t\tMAX-MPDU-7991\n");
597 break;
598 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
599 p += scnprintf(p, bufsz + buf - p,
600 "\t\tMAX-MPDU-11454\n");
601 break;
602 default:
603 p += scnprintf(p, bufsz + buf - p,
604 "\t\tMAX-MPDU-UNKNOWN\n");
605 }
606 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
607 case 0:
608 p += scnprintf(p, bufsz + buf - p,
609 "\t\t80Mhz\n");
610 break;
611 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
612 p += scnprintf(p, bufsz + buf - p,
613 "\t\t160Mhz\n");
614 break;
615 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
616 p += scnprintf(p, bufsz + buf - p,
617 "\t\t80+80Mhz\n");
618 break;
619 default:
620 p += scnprintf(p, bufsz + buf - p,
621 "\t\tUNKNOWN-MHZ: 0x%x\n",
622 (vhtc->cap >> 2) & 0x3);
623 }
624 PFLAG(RXLDPC, "RXLDPC");
625 PFLAG(SHORT_GI_80, "SHORT-GI-80");
626 PFLAG(SHORT_GI_160, "SHORT-GI-160");
627 PFLAG(TXSTBC, "TXSTBC");
628 p += scnprintf(p, bufsz + buf - p,
629 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
630 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
631 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
632 p += scnprintf(p, bufsz + buf - p,
633 "\t\tBEAMFORMEE-STS: 0x%x\n",
634 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
635 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
636 p += scnprintf(p, bufsz + buf - p,
637 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
638 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
639 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
640 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
641 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
642 PFLAG(VHT_TXOP_PS, "TXOP-PS");
643 PFLAG(HTC_VHT, "HTC-VHT");
644 p += scnprintf(p, bufsz + buf - p,
645 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
646 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
647 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
648 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
649 "LINK-ADAPTATION-VHT-UNSOL-MFB");
650 p += scnprintf(p, bufsz + buf - p,
651 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
652 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
653 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
654 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
655
656 p += scnprintf(p, bufsz + buf - p, "RX MCS: %.4x\n",
657 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
658 if (vhtc->vht_mcs.rx_highest)
659 p += scnprintf(p, bufsz + buf - p,
660 "MCS RX highest: %d Mbps\n",
661 le16_to_cpu(vhtc->vht_mcs.rx_highest));
662 p += scnprintf(p, bufsz + buf - p, "TX MCS: %.4x\n",
663 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
664 if (vhtc->vht_mcs.tx_highest)
665 p += scnprintf(p, bufsz + buf - p,
666 "MCS TX highest: %d Mbps\n",
667 le16_to_cpu(vhtc->vht_mcs.tx_highest));
668 #undef PFLAG
669 }
670
671 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
672 kfree(buf);
673 return ret;
674 }
675 LINK_STA_OPS(vht_capa);
676
677 static ssize_t link_sta_he_capa_read(struct file *file, char __user *userbuf,
678 size_t count, loff_t *ppos)
679 {
680 char *buf, *p;
681 size_t buf_sz = PAGE_SIZE;
682 struct link_sta_info *link_sta = file->private_data;
683 struct ieee80211_sta_he_cap *hec = &link_sta->pub->he_cap;
684 struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp;
685 u8 ppe_size;
686 u8 *cap;
687 int i;
688 ssize_t ret;
689
690 buf = kmalloc(buf_sz, GFP_KERNEL);
691 if (!buf)
692 return -ENOMEM;
693 p = buf;
694
695 p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n",
696 hec->has_he ? "" : "not ");
697 if (!hec->has_he)
698 goto out;
699
700 cap = hec->he_cap_elem.mac_cap_info;
701 p += scnprintf(p, buf_sz + buf - p,
702 "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
703 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5]);
704
705 #define PRINT(fmt, ...) \
706 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
707 ##__VA_ARGS__)
708
709 #define PFLAG(t, n, a, b) \
710 do { \
711 if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \
712 PRINT("%s", b); \
713 } while (0)
714
715 #define PFLAG_RANGE(t, i, n, s, m, off, fmt) \
716 do { \
717 u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \
718 u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \
719 PRINT(fmt, (s << idx) + (m * idx)); \
720 } while (0)
721
722 #define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \
723 do { \
724 if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \
725 PRINT("%s", b); \
726 break; \
727 } \
728 PFLAG_RANGE(t, i, n, s, m, off, fmt); \
729 } while (0)
730
731 PFLAG(MAC, 0, HTC_HE, "HTC-HE");
732 PFLAG(MAC, 0, TWT_REQ, "TWT-REQ");
733 PFLAG(MAC, 0, TWT_RES, "TWT-RES");
734 PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0,
735 "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP");
736 PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0,
737 "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED");
738
739 PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1,
740 "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED");
741 PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0,
742 "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN");
743 PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_RX_QOS, 0, 1, 1,
744 "MULTI-TID-AGG-RX-QOS-%d");
745
746 if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) {
747 switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) {
748 case 0:
749 PRINT("LINK-ADAPTATION-NO-FEEDBACK");
750 break;
751 case 1:
752 PRINT("LINK-ADAPTATION-RESERVED");
753 break;
754 case 2:
755 PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK");
756 break;
757 case 3:
758 PRINT("LINK-ADAPTATION-BOTH");
759 break;
760 }
761 }
762
763 PFLAG(MAC, 2, ALL_ACK, "ALL-ACK");
764 PFLAG(MAC, 2, TRS, "TRS");
765 PFLAG(MAC, 2, BSR, "BSR");
766 PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT");
767 PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP");
768 PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING");
769 PFLAG(MAC, 2, ACK_EN, "ACK-EN");
770
771 PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL");
772 PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA");
773
774 switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) {
775 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0:
776 PRINT("MAX-AMPDU-LEN-EXP-USE-EXT-0");
777 break;
778 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1:
779 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-1");
780 break;
781 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2:
782 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-2");
783 break;
784 case IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3:
785 PRINT("MAX-AMPDU-LEN-EXP-VHT-EXT-3");
786 break;
787 }
788
789 PFLAG(MAC, 3, AMSDU_FRAG, "AMSDU-FRAG");
790 PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED");
791 PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS");
792
793 PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG");
794 PFLAG(MAC, 4, QTP, "QTP");
795 PFLAG(MAC, 4, BQR, "BQR");
796 PFLAG(MAC, 4, PSR_RESP, "PSR-RESP");
797 PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP");
798 PFLAG(MAC, 4, OPS, "OPS");
799 PFLAG(MAC, 4, AMSDU_IN_AMPDU, "AMSDU-IN-AMPDU");
800
801 PRINT("MULTI-TID-AGG-TX-QOS-%d", ((cap[5] << 1) | (cap[4] >> 7)) & 0x7);
802
803 PFLAG(MAC, 5, SUBCHAN_SELECTIVE_TRANSMISSION,
804 "SUBCHAN-SELECTIVE-TRANSMISSION");
805 PFLAG(MAC, 5, UL_2x996_TONE_RU, "UL-2x996-TONE-RU");
806 PFLAG(MAC, 5, OM_CTRL_UL_MU_DATA_DIS_RX, "OM-CTRL-UL-MU-DATA-DIS-RX");
807 PFLAG(MAC, 5, HE_DYNAMIC_SM_PS, "HE-DYNAMIC-SM-PS");
808 PFLAG(MAC, 5, PUNCTURED_SOUNDING, "PUNCTURED-SOUNDING");
809 PFLAG(MAC, 5, HT_VHT_TRIG_FRAME_RX, "HT-VHT-TRIG-FRAME-RX");
810
811 cap = hec->he_cap_elem.phy_cap_info;
812 p += scnprintf(p, buf_sz + buf - p,
813 "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
814 cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6],
815 cap[7], cap[8], cap[9], cap[10]);
816
817 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G,
818 "CHANNEL-WIDTH-SET-40MHZ-IN-2G");
819 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
820 "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G");
821 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G,
822 "CHANNEL-WIDTH-SET-160MHZ-IN-5G");
823 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
824 "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G");
825 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G,
826 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G");
827 PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G,
828 "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G");
829
830 switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) {
831 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ:
832 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ");
833 break;
834 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ:
835 PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ");
836 break;
837 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ:
838 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ");
839 break;
840 case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ:
841 PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ");
842 break;
843 }
844
845 PFLAG(PHY, 1, DEVICE_CLASS_A,
846 "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A");
847 PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD,
848 "LDPC-CODING-IN-PAYLOAD");
849 PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US,
850 "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US");
851 PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3);
852
853 PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US");
854 PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ");
855 PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ");
856 PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX");
857 PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX");
858 PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO");
859 PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO");
860
861 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) {
862 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM:
863 PRINT("DCM-MAX-CONST-TX-NO-DCM");
864 break;
865 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK:
866 PRINT("DCM-MAX-CONST-TX-BPSK");
867 break;
868 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK:
869 PRINT("DCM-MAX-CONST-TX-QPSK");
870 break;
871 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM:
872 PRINT("DCM-MAX-CONST-TX-16-QAM");
873 break;
874 }
875
876 PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1");
877 PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2");
878
879 switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) {
880 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM:
881 PRINT("DCM-MAX-CONST-RX-NO-DCM");
882 break;
883 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK:
884 PRINT("DCM-MAX-CONST-RX-BPSK");
885 break;
886 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK:
887 PRINT("DCM-MAX-CONST-RX-QPSK");
888 break;
889 case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM:
890 PRINT("DCM-MAX-CONST-RX-16-QAM");
891 break;
892 }
893
894 PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1");
895 PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2");
896 PFLAG(PHY, 3, RX_PARTIAL_BW_SU_IN_20MHZ_MU,
897 "RX-PARTIAL-BW-SU-IN-20MHZ-MU");
898 PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER");
899
900 PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE");
901 PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER");
902
903 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4,
904 "BEAMFORMEE-MAX-STS-UNDER-%d");
905 PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4,
906 "BEAMFORMEE-MAX-STS-ABOVE-%d");
907
908 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1,
909 "NUM-SND-DIM-UNDER-80MHZ-%d");
910 PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1,
911 "NUM-SND-DIM-ABOVE-80MHZ-%d");
912 PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK");
913 PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK");
914
915 PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU");
916 PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU");
917 PFLAG(PHY, 6, TRIG_SU_BEAMFORMING_FB, "TRIG-SU-BEAMFORMING-FB");
918 PFLAG(PHY, 6, TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
919 "MU-BEAMFORMING-PARTIAL-BW-FB");
920 PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB");
921 PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE");
922 PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO,
923 "PARTIAL-BANDWIDTH-DL-MUMIMO");
924 PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT");
925
926 PFLAG(PHY, 7, PSR_BASED_SR, "PSR-BASED-SR");
927 PFLAG(PHY, 7, POWER_BOOST_FACTOR_SUPP, "POWER-BOOST-FACTOR-SUPP");
928 PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI,
929 "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI");
930 PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d");
931 PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ");
932 PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ");
933
934 PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI,
935 "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI");
936 PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G,
937 "20MHZ-IN-40MHZ-HE-PPDU-IN-2G");
938 PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU");
939 PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU");
940 PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI,
941 "HE-ER-SU-1XLTF-AND-08-US-GI");
942 PFLAG(PHY, 8, MIDAMBLE_RX_TX_2X_AND_1XLTF,
943 "MIDAMBLE-RX-TX-2X-AND-1XLTF");
944
945 switch (cap[8] & IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK) {
946 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242:
947 PRINT("DCM-MAX-RU-242");
948 break;
949 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484:
950 PRINT("DCM-MAX-RU-484");
951 break;
952 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996:
953 PRINT("DCM-MAX-RU-996");
954 break;
955 case IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996:
956 PRINT("DCM-MAX-RU-2x996");
957 break;
958 }
959
960 PFLAG(PHY, 9, LONGER_THAN_16_SIGB_OFDM_SYM,
961 "LONGER-THAN-16-SIGB-OFDM-SYM");
962 PFLAG(PHY, 9, NON_TRIGGERED_CQI_FEEDBACK,
963 "NON-TRIGGERED-CQI-FEEDBACK");
964 PFLAG(PHY, 9, TX_1024_QAM_LESS_THAN_242_TONE_RU,
965 "TX-1024-QAM-LESS-THAN-242-TONE-RU");
966 PFLAG(PHY, 9, RX_1024_QAM_LESS_THAN_242_TONE_RU,
967 "RX-1024-QAM-LESS-THAN-242-TONE-RU");
968 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB,
969 "RX-FULL-BW-SU-USING-MU-WITH-COMP-SIGB");
970 PFLAG(PHY, 9, RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB,
971 "RX-FULL-BW-SU-USING-MU-WITH-NON-COMP-SIGB");
972
973 switch (u8_get_bits(cap[9],
974 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK)) {
975 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
976 PRINT("NOMINAL-PACKET-PADDING-0US");
977 break;
978 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
979 PRINT("NOMINAL-PACKET-PADDING-8US");
980 break;
981 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
982 PRINT("NOMINAL-PACKET-PADDING-16US");
983 break;
984 }
985
986 #undef PFLAG_RANGE_DEFAULT
987 #undef PFLAG_RANGE
988 #undef PFLAG
989
990 #define PRINT_NSS_SUPP(f, n) \
991 do { \
992 int _i; \
993 u16 v = le16_to_cpu(nss->f); \
994 p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \
995 for (_i = 0; _i < 8; _i += 2) { \
996 switch ((v >> _i) & 0x3) { \
997 case 0: \
998 PRINT(n "-%d-SUPPORT-0-7", _i / 2); \
999 break; \
1000 case 1: \
1001 PRINT(n "-%d-SUPPORT-0-9", _i / 2); \
1002 break; \
1003 case 2: \
1004 PRINT(n "-%d-SUPPORT-0-11", _i / 2); \
1005 break; \
1006 case 3: \
1007 PRINT(n "-%d-NOT-SUPPORTED", _i / 2); \
1008 break; \
1009 } \
1010 } \
1011 } while (0)
1012
1013 PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80");
1014 PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80");
1015
1016 if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) {
1017 PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160");
1018 PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160");
1019 }
1020
1021 if (cap[0] &
1022 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
1023 PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80");
1024 PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80");
1025 }
1026
1027 #undef PRINT_NSS_SUPP
1028 #undef PRINT
1029
1030 if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT))
1031 goto out;
1032
1033 p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x",
1034 hec->ppe_thres[0]);
1035
1036 ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap);
1037 for (i = 1; i < ppe_size; i++) {
1038 p += scnprintf(p, buf_sz + buf - p, " %#.2x",
1039 hec->ppe_thres[i]);
1040 }
1041 p += scnprintf(p, buf_sz + buf - p, "\n");
1042
1043 out:
1044 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1045 kfree(buf);
1046 return ret;
1047 }
1048 LINK_STA_OPS(he_capa);
1049
1050 static ssize_t link_sta_eht_capa_read(struct file *file, char __user *userbuf,
1051 size_t count, loff_t *ppos)
1052 {
1053 char *buf, *p;
1054 size_t buf_sz = PAGE_SIZE;
1055 struct link_sta_info *link_sta = file->private_data;
1056 struct ieee80211_sta_eht_cap *bec = &link_sta->pub->eht_cap;
1057 struct ieee80211_eht_cap_elem_fixed *fixed = &bec->eht_cap_elem;
1058 struct ieee80211_eht_mcs_nss_supp *nss = &bec->eht_mcs_nss_supp;
1059 u8 *cap;
1060 int i;
1061 ssize_t ret;
1062 static const char *mcs_desc[] = { "0-7", "8-9", "10-11", "12-13"};
1063
1064 buf = kmalloc(buf_sz, GFP_KERNEL);
1065 if (!buf)
1066 return -ENOMEM;
1067 p = buf;
1068
1069 p += scnprintf(p, buf_sz + buf - p, "EHT %ssupported\n",
1070 bec->has_eht ? "" : "not ");
1071 if (!bec->has_eht)
1072 goto out;
1073
1074 p += scnprintf(p, buf_sz + buf - p,
1075 "MAC-CAP: %#.2x %#.2x\n",
1076 fixed->mac_cap_info[0], fixed->mac_cap_info[1]);
1077 p += scnprintf(p, buf_sz + buf - p,
1078 "PHY-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n",
1079 fixed->phy_cap_info[0], fixed->phy_cap_info[1],
1080 fixed->phy_cap_info[2], fixed->phy_cap_info[3],
1081 fixed->phy_cap_info[4], fixed->phy_cap_info[5],
1082 fixed->phy_cap_info[6], fixed->phy_cap_info[7],
1083 fixed->phy_cap_info[8]);
1084
1085 #define PRINT(fmt, ...) \
1086 p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \
1087 ##__VA_ARGS__)
1088
1089 #define PFLAG(t, n, a, b) \
1090 do { \
1091 if (cap[n] & IEEE80211_EHT_##t##_CAP##n##_##a) \
1092 PRINT("%s", b); \
1093 } while (0)
1094
1095 cap = fixed->mac_cap_info;
1096 PFLAG(MAC, 0, EPCS_PRIO_ACCESS, "EPCS-PRIO-ACCESS");
1097 PFLAG(MAC, 0, OM_CONTROL, "OM-CONTROL");
1098 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE1, "TRIG-TXOP-SHARING-MODE1");
1099 PFLAG(MAC, 0, TRIG_TXOP_SHARING_MODE2, "TRIG-TXOP-SHARING-MODE2");
1100 PFLAG(MAC, 0, RESTRICTED_TWT, "RESTRICTED-TWT");
1101 PFLAG(MAC, 0, SCS_TRAFFIC_DESC, "SCS-TRAFFIC-DESC");
1102 switch ((cap[0] & 0xc0) >> 6) {
1103 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895:
1104 PRINT("MAX-MPDU-LEN: 3985");
1105 break;
1106 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991:
1107 PRINT("MAX-MPDU-LEN: 7991");
1108 break;
1109 case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454:
1110 PRINT("MAX-MPDU-LEN: 11454");
1111 break;
1112 }
1113
1114 cap = fixed->phy_cap_info;
1115 PFLAG(PHY, 0, 320MHZ_IN_6GHZ, "320MHZ-IN-6GHZ");
1116 PFLAG(PHY, 0, 242_TONE_RU_GT20MHZ, "242-TONE-RU-GT20MHZ");
1117 PFLAG(PHY, 0, NDP_4_EHT_LFT_32_GI, "NDP-4-EHT-LFT-32-GI");
1118 PFLAG(PHY, 0, PARTIAL_BW_UL_MU_MIMO, "PARTIAL-BW-UL-MU-MIMO");
1119 PFLAG(PHY, 0, SU_BEAMFORMER, "SU-BEAMFORMER");
1120 PFLAG(PHY, 0, SU_BEAMFORMEE, "SU-BEAMFORMEE");
1121 i = cap[0] >> 7;
1122 i |= (cap[1] & 0x3) << 1;
1123 PRINT("BEAMFORMEE-80-NSS: %i", i);
1124 PRINT("BEAMFORMEE-160-NSS: %i", (cap[1] >> 2) & 0x7);
1125 PRINT("BEAMFORMEE-320-NSS: %i", (cap[1] >> 5) & 0x7);
1126 PRINT("SOUNDING-DIM-80-NSS: %i", (cap[2] & 0x7));
1127 PRINT("SOUNDING-DIM-160-NSS: %i", (cap[2] >> 3) & 0x7);
1128 i = cap[2] >> 6;
1129 i |= (cap[3] & 0x1) << 3;
1130 PRINT("SOUNDING-DIM-320-NSS: %i", i);
1131
1132 PFLAG(PHY, 3, NG_16_SU_FEEDBACK, "NG-16-SU-FEEDBACK");
1133 PFLAG(PHY, 3, NG_16_MU_FEEDBACK, "NG-16-MU-FEEDBACK");
1134 PFLAG(PHY, 3, CODEBOOK_4_2_SU_FDBK, "CODEBOOK-4-2-SU-FDBK");
1135 PFLAG(PHY, 3, CODEBOOK_7_5_MU_FDBK, "CODEBOOK-7-5-MU-FDBK");
1136 PFLAG(PHY, 3, TRIG_SU_BF_FDBK, "TRIG-SU-BF-FDBK");
1137 PFLAG(PHY, 3, TRIG_MU_BF_PART_BW_FDBK, "TRIG-MU-BF-PART-BW-FDBK");
1138 PFLAG(PHY, 3, TRIG_CQI_FDBK, "TRIG-CQI-FDBK");
1139
1140 PFLAG(PHY, 4, PART_BW_DL_MU_MIMO, "PART-BW-DL-MU-MIMO");
1141 PFLAG(PHY, 4, PSR_SR_SUPP, "PSR-SR-SUPP");
1142 PFLAG(PHY, 4, POWER_BOOST_FACT_SUPP, "POWER-BOOST-FACT-SUPP");
1143 PFLAG(PHY, 4, EHT_MU_PPDU_4_EHT_LTF_08_GI, "EHT-MU-PPDU-4-EHT-LTF-08-GI");
1144 PRINT("MAX_NC: %i", cap[4] >> 4);
1145
1146 PFLAG(PHY, 5, NON_TRIG_CQI_FEEDBACK, "NON-TRIG-CQI-FEEDBACK");
1147 PFLAG(PHY, 5, TX_LESS_242_TONE_RU_SUPP, "TX-LESS-242-TONE-RU-SUPP");
1148 PFLAG(PHY, 5, RX_LESS_242_TONE_RU_SUPP, "RX-LESS-242-TONE-RU-SUPP");
1149 PFLAG(PHY, 5, PPE_THRESHOLD_PRESENT, "PPE_THRESHOLD_PRESENT");
1150 switch (cap[5] >> 4 & 0x3) {
1151 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
1152 PRINT("NOMINAL_PKT_PAD: 0us");
1153 break;
1154 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
1155 PRINT("NOMINAL_PKT_PAD: 8us");
1156 break;
1157 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
1158 PRINT("NOMINAL_PKT_PAD: 16us");
1159 break;
1160 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
1161 PRINT("NOMINAL_PKT_PAD: 20us");
1162 break;
1163 }
1164 i = cap[5] >> 6;
1165 i |= cap[6] & 0x7;
1166 PRINT("MAX-NUM-SUPP-EHT-LTF: %i", i);
1167 PFLAG(PHY, 5, SUPP_EXTRA_EHT_LTF, "SUPP-EXTRA-EHT-LTF");
1168
1169 i = (cap[6] >> 3) & 0xf;
1170 PRINT("MCS15-SUPP-MASK: %i", i);
1171 PFLAG(PHY, 6, EHT_DUP_6GHZ_SUPP, "EHT-DUP-6GHZ-SUPP");
1172
1173 PFLAG(PHY, 7, 20MHZ_STA_RX_NDP_WIDER_BW, "20MHZ-STA-RX-NDP-WIDER-BW");
1174 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_80MHZ, "NON-OFDMA-UL-MU-MIMO-80MHZ");
1175 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_160MHZ, "NON-OFDMA-UL-MU-MIMO-160MHZ");
1176 PFLAG(PHY, 7, NON_OFDMA_UL_MU_MIMO_320MHZ, "NON-OFDMA-UL-MU-MIMO-320MHZ");
1177 PFLAG(PHY, 7, MU_BEAMFORMER_80MHZ, "MU-BEAMFORMER-80MHZ");
1178 PFLAG(PHY, 7, MU_BEAMFORMER_160MHZ, "MU-BEAMFORMER-160MHZ");
1179 PFLAG(PHY, 7, MU_BEAMFORMER_320MHZ, "MU-BEAMFORMER-320MHZ");
1180 PFLAG(PHY, 7, TB_SOUNDING_FDBK_RATE_LIMIT, "TB-SOUNDING-FDBK-RATE-LIMIT");
1181
1182 PFLAG(PHY, 8, RX_1024QAM_WIDER_BW_DL_OFDMA, "RX-1024QAM-WIDER-BW-DL-OFDMA");
1183 PFLAG(PHY, 8, RX_4096QAM_WIDER_BW_DL_OFDMA, "RX-4096QAM-WIDER-BW-DL-OFDMA");
1184
1185 #undef PFLAG
1186
1187 PRINT(""); /* newline */
1188 if (!(link_sta->pub->he_cap.he_cap_elem.phy_cap_info[0] &
1189 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) {
1190 u8 *mcs_vals = (u8 *)(&nss->only_20mhz);
1191
1192 for (i = 0; i < 4; i++)
1193 PRINT("EHT bw=20 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1194 mcs_desc[i],
1195 mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1196 } else {
1197 u8 *mcs_vals = (u8 *)(&nss->bw._80);
1198
1199 for (i = 0; i < 3; i++)
1200 PRINT("EHT bw <= 80 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1201 mcs_desc[i + 1],
1202 mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1203
1204 mcs_vals = (u8 *)(&nss->bw._160);
1205 for (i = 0; i < 3; i++)
1206 PRINT("EHT bw <= 160 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1207 mcs_desc[i + 1],
1208 mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1209
1210 mcs_vals = (u8 *)(&nss->bw._320);
1211 for (i = 0; i < 3; i++)
1212 PRINT("EHT bw <= 320 MHz, max NSS for MCS %s: Rx=%u, Tx=%u",
1213 mcs_desc[i + 1],
1214 mcs_vals[i] & 0xf, mcs_vals[i] >> 4);
1215 }
1216
1217 if (cap[5] & IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
1218 u8 ppe_size = ieee80211_eht_ppe_size(bec->eht_ppe_thres[0], cap);
1219
1220 p += scnprintf(p, buf_sz + buf - p, "EHT PPE Thresholds: ");
1221 for (i = 0; i < ppe_size; i++)
1222 p += scnprintf(p, buf_sz + buf - p, "0x%02x ",
1223 bec->eht_ppe_thres[i]);
1224 PRINT(""); /* newline */
1225 }
1226
1227 out:
1228 ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
1229 kfree(buf);
1230 return ret;
1231 }
1232 LINK_STA_OPS(eht_capa);
1233
1234 #define DEBUGFS_ADD(name) \
1235 debugfs_create_file(#name, 0400, \
1236 sta->debugfs_dir, sta, &sta_ ##name## _ops)
1237
1238 #define DEBUGFS_ADD_COUNTER(name, field) \
1239 debugfs_create_ulong(#name, 0400, sta->debugfs_dir, &sta->field);
1240
1241 void ieee80211_sta_debugfs_add(struct sta_info *sta)
1242 {
1243 struct ieee80211_local *local = sta->local;
1244 struct ieee80211_sub_if_data *sdata = sta->sdata;
1245 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
1246 u8 mac[3*ETH_ALEN];
1247
1248 if (!stations_dir)
1249 return;
1250
1251 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
1252
1253 /*
1254 * This might fail due to a race condition:
1255 * When mac80211 unlinks a station, the debugfs entries
1256 * remain, but it is already possible to link a new
1257 * station with the same address which triggers adding
1258 * it to debugfs; therefore, if the old station isn't
1259 * destroyed quickly enough the old station's debugfs
1260 * dir might still be around.
1261 */
1262 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
1263
1264 DEBUGFS_ADD(flags);
1265 DEBUGFS_ADD(aid);
1266 DEBUGFS_ADD(num_ps_buf_frames);
1267 DEBUGFS_ADD(last_seq_ctrl);
1268 DEBUGFS_ADD(agg_status);
1269 /* FIXME: Kept here as the statistics are only done on the deflink */
1270 DEBUGFS_ADD_COUNTER(tx_filtered, deflink.status_stats.filtered);
1271
1272 DEBUGFS_ADD(aqm);
1273 DEBUGFS_ADD(airtime);
1274
1275 if (wiphy_ext_feature_isset(local->hw.wiphy,
1276 NL80211_EXT_FEATURE_AQL))
1277 DEBUGFS_ADD(aql);
1278
1279 debugfs_create_xul("driver_buffered_tids", 0400, sta->debugfs_dir,
1280 &sta->driver_buffered_tids);
1281
1282 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
1283 }
1284
1285 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
1286 {
1287 debugfs_remove_recursive(sta->debugfs_dir);
1288 sta->debugfs_dir = NULL;
1289 }
1290
1291 #undef DEBUGFS_ADD
1292 #undef DEBUGFS_ADD_COUNTER
1293
1294 #define DEBUGFS_ADD(name) \
1295 debugfs_create_file(#name, 0400, \
1296 link_sta->debugfs_dir, link_sta, &link_sta_ ##name## _ops)
1297 #define DEBUGFS_ADD_COUNTER(name, field) \
1298 debugfs_create_ulong(#name, 0400, link_sta->debugfs_dir, &link_sta->field)
1299
1300 void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta)
1301 {
1302 if (WARN_ON(!link_sta->sta->debugfs_dir))
1303 return;
1304
1305 /* For non-MLO, leave the files in the main directory. */
1306 if (link_sta->sta->sta.valid_links) {
1307 char link_dir_name[10];
1308
1309 snprintf(link_dir_name, sizeof(link_dir_name),
1310 "link-%d", link_sta->link_id);
1311
1312 link_sta->debugfs_dir =
1313 debugfs_create_dir(link_dir_name,
1314 link_sta->sta->debugfs_dir);
1315
1316 DEBUGFS_ADD(addr);
1317 } else {
1318 if (WARN_ON(link_sta != &link_sta->sta->deflink))
1319 return;
1320
1321 link_sta->debugfs_dir = link_sta->sta->debugfs_dir;
1322 }
1323
1324 DEBUGFS_ADD(ht_capa);
1325 DEBUGFS_ADD(vht_capa);
1326 DEBUGFS_ADD(he_capa);
1327 DEBUGFS_ADD(eht_capa);
1328
1329 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
1330 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
1331 }
1332
1333 void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta)
1334 {
1335 if (!link_sta->debugfs_dir || !link_sta->sta->debugfs_dir) {
1336 link_sta->debugfs_dir = NULL;
1337 return;
1338 }
1339
1340 if (link_sta->debugfs_dir == link_sta->sta->debugfs_dir) {
1341 WARN_ON(link_sta != &link_sta->sta->deflink);
1342 link_sta->sta->debugfs_dir = NULL;
1343 return;
1344 }
1345
1346 debugfs_remove_recursive(link_sta->debugfs_dir);
1347 link_sta->debugfs_dir = NULL;
1348 }
1349
1350 void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta)
1351 {
1352 if (WARN_ON(!link_sta->debugfs_dir))
1353 return;
1354
1355 drv_link_sta_add_debugfs(link_sta->sta->local, link_sta->sta->sdata,
1356 link_sta->pub, link_sta->debugfs_dir);
1357 }
1358
1359 void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta)
1360 {
1361 if (!link_sta->debugfs_dir)
1362 return;
1363
1364 if (WARN_ON(link_sta->debugfs_dir == link_sta->sta->debugfs_dir))
1365 return;
1366
1367 /* Recreate the directory excluding the driver data */
1368 debugfs_remove_recursive(link_sta->debugfs_dir);
1369 link_sta->debugfs_dir = NULL;
1370
1371 ieee80211_link_sta_debugfs_add(link_sta);
1372 }
1373
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