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Linux 6.10-rc3
[linux-block.git] / net / mac80211 / debugfs.c
CommitLineData
7f904d7e 1// SPDX-License-Identifier: GPL-2.0-only
e9f207f0
JB		 2/*
3 * mac80211 debugfs for wireless PHYs
4 *
5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
d98ad83e 6 * Copyright 2013-2014 Intel Mobile Communications GmbH
6f0107d1 7 * Copyright (C) 2018 - 2019, 2021-2024 Intel Corporation
e9f207f0
JB		 8 */
9
10#include <linux/debugfs.h>
11#include <linux/rtnetlink.h>
9399b86c 12#include <linux/vmalloc.h>
e9f207f0 13#include "ieee80211_i.h"
24487981 14#include "driver-ops.h"
2c8dccc7 15#include "rate.h"
e9f207f0
JB		 16#include "debugfs.h"
17
07caf9d6
EP		 18#define DEBUGFS_FORMAT_BUFFER_SIZE 100
19
20int mac80211_format_buffer(char __user *userbuf, size_t count,
21 loff_t *ppos, char *fmt, ...)
22{
23 va_list args;
24 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
25 int res;
26
27 va_start(args, fmt);
28 res = vscnprintf(buf, sizeof(buf), fmt, args);
29 va_end(args);
30
31 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
32}
33
279daf64 34#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
e9f207f0
JB		 35static ssize_t name## _read(struct file *file, char __user *userbuf, \
36 size_t count, loff_t *ppos) \
37{ \
38 struct ieee80211_local *local = file->private_data; \
e9f207f0 39 \
07caf9d6
EP		 40 return mac80211_format_buffer(userbuf, count, ppos, \
41 fmt "\n", ##value); \
279daf64
BG		 42}
43
44#define DEBUGFS_READONLY_FILE_OPS(name) \
e9f207f0
JB		 45static const struct file_operations name## _ops = { \
46 .read = name## _read, \
234e3405 47 .open = simple_open, \
2b18ab36 48 .llseek = generic_file_llseek, \
e9f207f0
JB		 49};
50
279daf64
BG		 51#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
52 DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
53 DEBUGFS_READONLY_FILE_OPS(name)
54
e9f207f0 55#define DEBUGFS_ADD(name) \
84674ef4 56 debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
e9f207f0 57
827b1fb4 58#define DEBUGFS_ADD_MODE(name, mode) \
7bcfaf2f 59 debugfs_create_file(#name, mode, phyd, local, &name## _ops);
e9f207f0
JB		 60
61
c90142a5
TP		 62DEBUGFS_READONLY_FILE(hw_conf, "%x",
63 local->hw.conf.flags);
83bdf2a1
BG		 64DEBUGFS_READONLY_FILE(user_power, "%d",
65 local->user_power_level);
66DEBUGFS_READONLY_FILE(power, "%d",
67 local->hw.conf.power_level);
07caf9d6 68DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
e9f207f0 69 local->total_ps_buffered);
07caf9d6 70DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
e9f207f0 71 local->wep_iv & 0xffffff);
07caf9d6 72DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
af65cd96 73 local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
3b5d665b 74
8d51dbb8
THJ		 75static ssize_t aqm_read(struct file *file,
76 char __user *user_buf,
77 size_t count,
78 loff_t *ppos)
9399b86c 79{
8d51dbb8 80 struct ieee80211_local *local = file->private_data;
9399b86c 81 struct fq *fq = &local->fq;
8d51dbb8 82 char buf[200];
9399b86c 83 int len = 0;
9399b86c
MK		 84
85 spin_lock_bh(&local->fq.lock);
86 rcu_read_lock();
87
8d51dbb8
THJ		 88 len = scnprintf(buf, sizeof(buf),
89 "access name value\n"
90 "R fq_flows_cnt %u\n"
91 "R fq_backlog %u\n"
92 "R fq_overlimit %u\n"
2a4e675d 93 "R fq_overmemory %u\n"
8d51dbb8 94 "R fq_collisions %u\n"
2a4e675d
THJ		 95 "R fq_memory_usage %u\n"
96 "RW fq_memory_limit %u\n"
8d51dbb8
THJ		 97 "RW fq_limit %u\n"
98 "RW fq_quantum %u\n",
99 fq->flows_cnt,
100 fq->backlog,
2a4e675d 101 fq->overmemory,
8d51dbb8
THJ		 102 fq->overlimit,
103 fq->collisions,
2a4e675d
THJ		 104 fq->memory_usage,
105 fq->memory_limit,
8d51dbb8
THJ		 106 fq->limit,
107 fq->quantum);
9399b86c
MK		 108
109 rcu_read_unlock();
110 spin_unlock_bh(&local->fq.lock);
111
9399b86c 112 return simple_read_from_buffer(user_buf, count, ppos,
8d51dbb8 113 buf, len);
9399b86c
MK		 114}
115
116static ssize_t aqm_write(struct file *file,
117 const char __user *user_buf,
118 size_t count,
119 loff_t *ppos)
120{
8d51dbb8 121 struct ieee80211_local *local = file->private_data;
9399b86c 122 char buf[100];
9399b86c 123
6020d534 124 if (count >= sizeof(buf))
9399b86c
MK		 125 return -EINVAL;
126
127 if (copy_from_user(buf, user_buf, count))
128 return -EFAULT;
129
6020d534
SC		 130 if (count && buf[count - 1] == '\n')
131 buf[count - 1] = '\0';
132 else
133 buf[count] = '\0';
9399b86c
MK		 134
135 if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
136 return count;
2a4e675d
THJ		 137 else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
138 return count;
9399b86c
MK		 139 else if (sscanf(buf, "fq_quantum %u", &local->fq.quantum) == 1)
140 return count;
141
142 return -EINVAL;
143}
144
145static const struct file_operations aqm_ops = {
146 .write = aqm_write,
147 .read = aqm_read,
8d51dbb8 148 .open = simple_open,
9399b86c
MK		 149 .llseek = default_llseek,
150};
151
e322c07f
LB		 152static ssize_t airtime_flags_read(struct file *file,
153 char __user *user_buf,
154 size_t count, loff_t *ppos)
155{
156 struct ieee80211_local *local = file->private_data;
157 char buf[128] = {}, *pos, *end;
158
159 pos = buf;
160 end = pos + sizeof(buf) - 1;
161
162 if (local->airtime_flags & AIRTIME_USE_TX)
163 pos += scnprintf(pos, end - pos, "AIRTIME_TX\t(%lx)\n",
164 AIRTIME_USE_TX);
165 if (local->airtime_flags & AIRTIME_USE_RX)
166 pos += scnprintf(pos, end - pos, "AIRTIME_RX\t(%lx)\n",
167 AIRTIME_USE_RX);
168
169 return simple_read_from_buffer(user_buf, count, ppos, buf,
170 strlen(buf));
171}
172
173static ssize_t airtime_flags_write(struct file *file,
174 const char __user *user_buf,
175 size_t count, loff_t *ppos)
176{
177 struct ieee80211_local *local = file->private_data;
178 char buf[16];
e322c07f 179
6020d534 180 if (count >= sizeof(buf))
e322c07f
LB		 181 return -EINVAL;
182
183 if (copy_from_user(buf, user_buf, count))
184 return -EFAULT;
185
6020d534
SC		 186 if (count && buf[count - 1] == '\n')
187 buf[count - 1] = '\0';
188 else
189 buf[count] = '\0';
e322c07f
LB		 190
191 if (kstrtou16(buf, 0, &local->airtime_flags))
192 return -EINVAL;
193
194 return count;
195}
196
197static const struct file_operations airtime_flags_ops = {
198 .write = airtime_flags_write,
199 .read = airtime_flags_read,
200 .open = simple_open,
201 .llseek = default_llseek,
202};
203
3db2c560
FF		 204static ssize_t aql_pending_read(struct file *file,
205 char __user *user_buf,
206 size_t count, loff_t *ppos)
207{
208 struct ieee80211_local *local = file->private_data;
209 char buf[400];
210 int len = 0;
211
212 len = scnprintf(buf, sizeof(buf),
213 "AC AQL pending\n"
214 "VO %u us\n"
215 "VI %u us\n"
216 "BE %u us\n"
217 "BK %u us\n"
218 "total %u us\n",
219 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]),
220 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]),
221 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]),
222 atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]),
223 atomic_read(&local->aql_total_pending_airtime));
224 return simple_read_from_buffer(user_buf, count, ppos,
225 buf, len);
226}
227
228static const struct file_operations aql_pending_ops = {
229 .read = aql_pending_read,
230 .open = simple_open,
231 .llseek = default_llseek,
232};
233
3ace10f5
KY		 234static ssize_t aql_txq_limit_read(struct file *file,
235 char __user *user_buf,
236 size_t count,
237 loff_t *ppos)
238{
239 struct ieee80211_local *local = file->private_data;
240 char buf[400];
241 int len = 0;
242
243 len = scnprintf(buf, sizeof(buf),
244 "AC AQL limit low AQL limit high\n"
245 "VO %u %u\n"
246 "VI %u %u\n"
247 "BE %u %u\n"
248 "BK %u %u\n",
942741da
FF		 249 local->aql_txq_limit_low[IEEE80211_AC_VO],
250 local->aql_txq_limit_high[IEEE80211_AC_VO],
251 local->aql_txq_limit_low[IEEE80211_AC_VI],
252 local->aql_txq_limit_high[IEEE80211_AC_VI],
253 local->aql_txq_limit_low[IEEE80211_AC_BE],
254 local->aql_txq_limit_high[IEEE80211_AC_BE],
255 local->aql_txq_limit_low[IEEE80211_AC_BK],
256 local->aql_txq_limit_high[IEEE80211_AC_BK]);
3ace10f5
KY		 257 return simple_read_from_buffer(user_buf, count, ppos,
258 buf, len);
259}
260
261static ssize_t aql_txq_limit_write(struct file *file,
262 const char __user *user_buf,
263 size_t count,
264 loff_t *ppos)
265{
266 struct ieee80211_local *local = file->private_data;
267 char buf[100];
3ace10f5
KY		 268 u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
269 struct sta_info *sta;
270
6020d534 271 if (count >= sizeof(buf))
3ace10f5
KY		 272 return -EINVAL;
273
274 if (copy_from_user(buf, user_buf, count))
275 return -EFAULT;
276
6020d534
SC		 277 if (count && buf[count - 1] == '\n')
278 buf[count - 1] = '\0';
279 else
280 buf[count] = '\0';
3ace10f5
KY		 281
282 if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
283 return -EINVAL;
284
285 if (ac >= IEEE80211_NUM_ACS)
286 return -EINVAL;
287
942741da
FF		 288 q_limit_low_old = local->aql_txq_limit_low[ac];
289 q_limit_high_old = local->aql_txq_limit_high[ac];
3ace10f5 290
4d3acf43 291 wiphy_lock(local->hw.wiphy);
942741da
FF		 292 local->aql_txq_limit_low[ac] = q_limit_low;
293 local->aql_txq_limit_high[ac] = q_limit_high;
3ace10f5 294
3ace10f5
KY		 295 list_for_each_entry(sta, &local->sta_list, list) {
296 /* If a sta has customized queue limits, keep it */
297 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
298 sta->airtime[ac].aql_limit_high == q_limit_high_old) {
299 sta->airtime[ac].aql_limit_low = q_limit_low;
300 sta->airtime[ac].aql_limit_high = q_limit_high;
301 }
302 }
4d3acf43
JB		 303 wiphy_unlock(local->hw.wiphy);
304
3ace10f5
KY		 305 return count;
306}
307
308static const struct file_operations aql_txq_limit_ops = {
309 .write = aql_txq_limit_write,
310 .read = aql_txq_limit_read,
311 .open = simple_open,
312 .llseek = default_llseek,
313};
314
e908435e
LB		 315static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
317{
318 char buf[3];
319 int len;
320
321 len = scnprintf(buf, sizeof(buf), "%d\n",
322 !static_key_false(&aql_disable.key));
323
324 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
325}
326
327static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
328 size_t count, loff_t *ppos)
329{
330 bool aql_disabled = static_key_false(&aql_disable.key);
331 char buf[3];
332 size_t len;
333
334 if (count > sizeof(buf))
335 return -EINVAL;
336
337 if (copy_from_user(buf, user_buf, count))
338 return -EFAULT;
339
340 buf[sizeof(buf) - 1] = '\0';
341 len = strlen(buf);
342 if (len > 0 && buf[len - 1] == '\n')
343 buf[len - 1] = 0;
344
345 if (buf[0] == '0' && buf[1] == '\0') {
346 if (!aql_disabled)
347 static_branch_inc(&aql_disable);
348 } else if (buf[0] == '1' && buf[1] == '\0') {
349 if (aql_disabled)
350 static_branch_dec(&aql_disable);
351 } else {
352 return -EINVAL;
353 }
354
355 return count;
356}
357
358static const struct file_operations aql_enable_ops = {
359 .write = aql_enable_write,
360 .read = aql_enable_read,
361 .open = simple_open,
362 .llseek = default_llseek,
363};
364
276d9e82
JN		 365static ssize_t force_tx_status_read(struct file *file,
366 char __user *user_buf,
367 size_t count,
368 loff_t *ppos)
369{
370 struct ieee80211_local *local = file->private_data;
371 char buf[3];
372 int len = 0;
373
374 len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
375
376 return simple_read_from_buffer(user_buf, count, ppos,
377 buf, len);
378}
379
380static ssize_t force_tx_status_write(struct file *file,
381 const char __user *user_buf,
382 size_t count,
383 loff_t *ppos)
384{
385 struct ieee80211_local *local = file->private_data;
386 char buf[3];
276d9e82 387
6020d534 388 if (count >= sizeof(buf))
276d9e82
JN		 389 return -EINVAL;
390
391 if (copy_from_user(buf, user_buf, count))
392 return -EFAULT;
393
6020d534
SC		 394 if (count && buf[count - 1] == '\n')
395 buf[count - 1] = '\0';
396 else
397 buf[count] = '\0';
276d9e82
JN		 398
399 if (buf[0] == '0' && buf[1] == '\0')
400 local->force_tx_status = 0;
401 else if (buf[0] == '1' && buf[1] == '\0')
402 local->force_tx_status = 1;
403 else
404 return -EINVAL;
405
406 return count;
407}
408
409static const struct file_operations force_tx_status_ops = {
410 .write = force_tx_status_write,
411 .read = force_tx_status_read,
412 .open = simple_open,
413 .llseek = default_llseek,
414};
415
2ad4814f 416#ifdef CONFIG_PM
827b1fb4
JB		 417static ssize_t reset_write(struct file *file, const char __user *user_buf,
418 size_t count, loff_t *ppos)
419{
420 struct ieee80211_local *local = file->private_data;
f5baf287 421 int ret;
827b1fb4
JB		 422
423 rtnl_lock();
adaed1b9 424 wiphy_lock(local->hw.wiphy);
eecc4800 425 __ieee80211_suspend(&local->hw, NULL);
f5baf287 426 ret = __ieee80211_resume(&local->hw);
adaed1b9 427 wiphy_unlock(local->hw.wiphy);
f5baf287
JB		 428
429 if (ret)
430 cfg80211_shutdown_all_interfaces(local->hw.wiphy);
431
827b1fb4
JB		 432 rtnl_unlock();
433
434 return count;
435}
436
437static const struct file_operations reset_ops = {
438 .write = reset_write,
234e3405 439 .open = simple_open,
6038f373 440 .llseek = noop_llseek,
827b1fb4 441};
2ad4814f 442#endif
827b1fb4 443
68920c97 444static const char *hw_flag_names[] = {
30686bf7
JB		 445#define FLAG(F) [IEEE80211_HW_##F] = #F
446 FLAG(HAS_RATE_CONTROL),
447 FLAG(RX_INCLUDES_FCS),
448 FLAG(HOST_BROADCAST_PS_BUFFERING),
449 FLAG(SIGNAL_UNSPEC),
450 FLAG(SIGNAL_DBM),
451 FLAG(NEED_DTIM_BEFORE_ASSOC),
452 FLAG(SPECTRUM_MGMT),
453 FLAG(AMPDU_AGGREGATION),
454 FLAG(SUPPORTS_PS),
455 FLAG(PS_NULLFUNC_STACK),
456 FLAG(SUPPORTS_DYNAMIC_PS),
457 FLAG(MFP_CAPABLE),
458 FLAG(WANT_MONITOR_VIF),
459 FLAG(NO_AUTO_VIF),
460 FLAG(SW_CRYPTO_CONTROL),
461 FLAG(SUPPORT_FAST_XMIT),
462 FLAG(REPORTS_TX_ACK_STATUS),
463 FLAG(CONNECTION_MONITOR),
464 FLAG(QUEUE_CONTROL),
465 FLAG(SUPPORTS_PER_STA_GTK),
466 FLAG(AP_LINK_PS),
467 FLAG(TX_AMPDU_SETUP_IN_HW),
468 FLAG(SUPPORTS_RC_TABLE),
469 FLAG(P2P_DEV_ADDR_FOR_INTF),
470 FLAG(TIMING_BEACON_ONLY),
471 FLAG(SUPPORTS_HT_CCK_RATES),
472 FLAG(CHANCTX_STA_CSA),
473 FLAG(SUPPORTS_CLONED_SKBS),
474 FLAG(SINGLE_SCAN_ON_ALL_BANDS),
b98fb44f 475 FLAG(TDLS_WIDER_BW),
99e7ca44 476 FLAG(SUPPORTS_AMSDU_IN_AMPDU),
35afa588 477 FLAG(BEACON_TX_STATUS),
31104891 478 FLAG(NEEDS_UNIQUE_STA_ADDR),
412a6d80 479 FLAG(SUPPORTS_REORDERING_BUFFER),
c9c5962b 480 FLAG(USES_RSS),
6e0456b5
FF		 481 FLAG(TX_AMSDU),
482 FLAG(TX_FRAG_LIST),
e8a24cd4 483 FLAG(REPORTS_LOW_ACK),
f3fe4e93 484 FLAG(SUPPORTS_TX_FRAG),
e2fb1b83 485 FLAG(SUPPORTS_TDLS_BUFFER_STA),
94ba9271 486 FLAG(DEAUTH_NEED_MGD_TX_PREP),
7c181f4f 487 FLAG(DOESNT_SUPPORT_QOS_NDP),
adf8ed01 488 FLAG(BUFF_MMPDU_TXQ),
09b4a4fa 489 FLAG(SUPPORTS_VHT_EXT_NSS_BW),
0eeb2b67 490 FLAG(STA_MMPDU_TXQ),
77f7ffdc 491 FLAG(TX_STATUS_NO_AMPDU_LEN),
caf56338
SS		 492 FLAG(SUPPORTS_MULTI_BSSID),
493 FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
dc3998ec 494 FLAG(AMPDU_KEYBORDER_SUPPORT),
6aea26ce 495 FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
80a915ec 496 FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
55f8205e 497 FLAG(SUPPORTS_CONC_MON_RX_DECAP),
6d945a33 498 FLAG(DETECTS_COLOR_COLLISION),
963d0e8d 499 FLAG(MLO_MCAST_MULTI_LINK_TX),
42b941cd 500 FLAG(DISALLOW_PUNCTURING),
6943e003 501 FLAG(DISALLOW_PUNCTURING_5GHZ),
6f0107d1 502 FLAG(HANDLES_QUIET_CSA),
30686bf7
JB		 503#undef FLAG
504};
505
279daf64
BG		 506static ssize_t hwflags_read(struct file *file, char __user *user_buf,
507 size_t count, loff_t *ppos)
508{
509 struct ieee80211_local *local = file->private_data;
30686bf7
JB		 510 size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
511 char *buf = kzalloc(bufsz, GFP_KERNEL);
512 char *pos = buf, *end = buf + bufsz - 1;
279daf64 513 ssize_t rv;
30686bf7 514 int i;
279daf64 515
d15b8459 516 if (!buf)
30686bf7
JB		 517 return -ENOMEM;
518
519 /* fail compilation if somebody adds or removes
520 * a flag without updating the name array above
521 */
68920c97 522 BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
30686bf7
JB		 523
524 for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
525 if (test_bit(i, local->hw.flags))
4633dfc3 526 pos += scnprintf(pos, end - pos, "%s\n",
30686bf7
JB		 527 hw_flag_names[i]);
528 }
279daf64
BG		 529
530 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
531 kfree(buf);
532 return rv;
533}
199d69f2 534
4a5eccaa
BG		 535static ssize_t misc_read(struct file *file, char __user *user_buf,
536 size_t count, loff_t *ppos)
537{
538 struct ieee80211_local *local = file->private_data;
539 /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
540 size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
b2347a32
DC		 541 char *buf;
542 char *pos, *end;
4a5eccaa
BG		 543 ssize_t rv;
544 int i;
545 int ln;
546
b2347a32
DC		 547 buf = kzalloc(bufsz, GFP_KERNEL);
548 if (!buf)
549 return -ENOMEM;
550
551 pos = buf;
552 end = buf + bufsz - 1;
553
4a5eccaa
BG		 554 pos += scnprintf(pos, end - pos, "pending:\n");
555
556 for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
557 ln = skb_queue_len(&local->pending[i]);
558 pos += scnprintf(pos, end - pos, "[%i] %d\n",
559 i, ln);
560 }
561
562 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
563 kfree(buf);
564 return rv;
565}
566
db2e6bd4
JB		 567static ssize_t queues_read(struct file *file, char __user *user_buf,
568 size_t count, loff_t *ppos)
569{
570 struct ieee80211_local *local = file->private_data;
571 unsigned long flags;
572 char buf[IEEE80211_MAX_QUEUES * 20];
573 int q, res = 0;
574
575 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
576 for (q = 0; q < local->hw.queues; q++)
577 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
578 local->queue_stop_reasons[q],
3b8d81e0 579 skb_queue_len(&local->pending[q]));
db2e6bd4
JB		 580 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
581
582 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
583}
584
279daf64 585DEBUGFS_READONLY_FILE_OPS(hwflags);
279daf64 586DEBUGFS_READONLY_FILE_OPS(queues);
4a5eccaa 587DEBUGFS_READONLY_FILE_OPS(misc);
db2e6bd4 588
e9f207f0
JB		 589/* statistics stuff */
590
e9f207f0
JB		 591static ssize_t format_devstat_counter(struct ieee80211_local *local,
592 char __user *userbuf,
593 size_t count, loff_t *ppos,
594 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
595 int buflen))
596{
597 struct ieee80211_low_level_stats stats;
598 char buf[20];
599 int res;
600
629ebb85 601 wiphy_lock(local->hw.wiphy);
24487981 602 res = drv_get_stats(local, &stats);
629ebb85 603 wiphy_unlock(local->hw.wiphy);
24487981
JB		 604 if (res)
605 return res;
606 res = printvalue(&stats, buf, sizeof(buf));
e9f207f0
JB		 607 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
608}
609
610#define DEBUGFS_DEVSTATS_FILE(name) \
611static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
612 char *buf, int buflen) \
613{ \
614 return scnprintf(buf, buflen, "%u\n", stats->name); \
615} \
616static ssize_t stats_ ##name## _read(struct file *file, \
617 char __user *userbuf, \
618 size_t count, loff_t *ppos) \
619{ \
620 return format_devstat_counter(file->private_data, \
621 userbuf, \
622 count, \
623 ppos, \
624 print_devstats_##name); \
625} \
626 \
627static const struct file_operations stats_ ##name## _ops = { \
628 .read = stats_ ##name## _read, \
234e3405 629 .open = simple_open, \
2b18ab36 630 .llseek = generic_file_llseek, \
e9f207f0
JB		 631};
632
453a2a82 633#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
f1160434
JB		 634#define DEBUGFS_STATS_ADD(name) \
635 debugfs_create_u32(#name, 0400, statsd, &local->name);
453a2a82 636#endif
2826bcd8 637#define DEBUGFS_DEVSTATS_ADD(name) \
7bcfaf2f 638 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
e9f207f0 639
e9f207f0
JB		 640DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
641DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
642DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
643DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
644
e9f207f0
JB		 645void debugfs_hw_add(struct ieee80211_local *local)
646{
647 struct dentry *phyd = local->hw.wiphy->debugfsdir;
648 struct dentry *statsd;
649
650 if (!phyd)
651 return;
652
e9f207f0
JB		 653 local->debugfs.keys = debugfs_create_dir("keys", phyd);
654
e9f207f0 655 DEBUGFS_ADD(total_ps_buffered);
e9f207f0 656 DEBUGFS_ADD(wep_iv);
bddb2afc 657 DEBUGFS_ADD(rate_ctrl_alg);
db2e6bd4 658 DEBUGFS_ADD(queues);
4a5eccaa 659 DEBUGFS_ADD(misc);
2ad4814f 660#ifdef CONFIG_PM
827b1fb4 661 DEBUGFS_ADD_MODE(reset, 0200);
2ad4814f 662#endif
279daf64 663 DEBUGFS_ADD(hwflags);
83bdf2a1
BG		 664 DEBUGFS_ADD(user_power);
665 DEBUGFS_ADD(power);
c90142a5 666 DEBUGFS_ADD(hw_conf);
276d9e82 667 DEBUGFS_ADD_MODE(force_tx_status, 0600);
e908435e 668 DEBUGFS_ADD_MODE(aql_enable, 0600);
3db2c560 669 DEBUGFS_ADD(aql_pending);
107395f9 670 DEBUGFS_ADD_MODE(aqm, 0600);
e9f207f0 671
942741da 672 DEBUGFS_ADD_MODE(airtime_flags, 0600);
b4809e94 673
3ace10f5
KY		 674 DEBUGFS_ADD(aql_txq_limit);
675 debugfs_create_u32("aql_threshold", 0600,
676 phyd, &local->aql_threshold);
677
e9f207f0 678 statsd = debugfs_create_dir("statistics", phyd);
e9f207f0 679
c206ca67 680#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
f1160434
JB		 681 DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
682 DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
683 DEBUGFS_STATS_ADD(dot11FailedCount);
684 DEBUGFS_STATS_ADD(dot11RetryCount);
685 DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
686 DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
687 DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
688 DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
689 DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
f1160434
JB		 690 DEBUGFS_STATS_ADD(tx_handlers_drop);
691 DEBUGFS_STATS_ADD(tx_handlers_queued);
692 DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
693 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
694 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
695 DEBUGFS_STATS_ADD(rx_handlers_drop);
696 DEBUGFS_STATS_ADD(rx_handlers_queued);
697 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
698 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
f1160434
JB		 699 DEBUGFS_STATS_ADD(tx_expand_skb_head);
700 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
701 DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
702 DEBUGFS_STATS_ADD(rx_handlers_fragments);
703 DEBUGFS_STATS_ADD(tx_status_drop);
e9f207f0 704#endif
2826bcd8
FF		 705 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
706 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
707 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
708 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
e9f207f0 709}
Linux 6.x block layer and io_uring tree(s)