Linux kernel mirror (for testing)
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linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * mac80211 debugfs for wireless PHYs
4 *
5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2014 Intel Mobile Communications GmbH
7 * Copyright (C) 2018 - 2019 Intel Corporation
8 */
9
10#include <linux/debugfs.h>
11#include <linux/rtnetlink.h>
12#include <linux/vmalloc.h>
13#include "ieee80211_i.h"
14#include "driver-ops.h"
15#include "rate.h"
16#include "debugfs.h"
17
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
34#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
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; \
39 \
40 return mac80211_format_buffer(userbuf, count, ppos, \
41 fmt "\n", ##value); \
42}
43
44#define DEBUGFS_READONLY_FILE_OPS(name) \
45static const struct file_operations name## _ops = { \
46 .read = name## _read, \
47 .open = simple_open, \
48 .llseek = generic_file_llseek, \
49};
50
51#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
52 DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
53 DEBUGFS_READONLY_FILE_OPS(name)
54
55#define DEBUGFS_ADD(name) \
56 debugfs_create_file(#name, 0400, phyd, local, &name## _ops)
57
58#define DEBUGFS_ADD_MODE(name, mode) \
59 debugfs_create_file(#name, mode, phyd, local, &name## _ops);
60
61
62DEBUGFS_READONLY_FILE(hw_conf, "%x",
63 local->hw.conf.flags);
64DEBUGFS_READONLY_FILE(user_power, "%d",
65 local->user_power_level);
66DEBUGFS_READONLY_FILE(power, "%d",
67 local->hw.conf.power_level);
68DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
69 local->total_ps_buffered);
70DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
71 local->wep_iv & 0xffffff);
72DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
73 local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
74
75static ssize_t aqm_read(struct file *file,
76 char __user *user_buf,
77 size_t count,
78 loff_t *ppos)
79{
80 struct ieee80211_local *local = file->private_data;
81 struct fq *fq = &local->fq;
82 char buf[200];
83 int len = 0;
84
85 spin_lock_bh(&local->fq.lock);
86 rcu_read_lock();
87
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"
93 "R fq_overmemory %u\n"
94 "R fq_collisions %u\n"
95 "R fq_memory_usage %u\n"
96 "RW fq_memory_limit %u\n"
97 "RW fq_limit %u\n"
98 "RW fq_quantum %u\n",
99 fq->flows_cnt,
100 fq->backlog,
101 fq->overmemory,
102 fq->overlimit,
103 fq->collisions,
104 fq->memory_usage,
105 fq->memory_limit,
106 fq->limit,
107 fq->quantum);
108
109 rcu_read_unlock();
110 spin_unlock_bh(&local->fq.lock);
111
112 return simple_read_from_buffer(user_buf, count, ppos,
113 buf, len);
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{
121 struct ieee80211_local *local = file->private_data;
122 char buf[100];
123
124 if (count >= sizeof(buf))
125 return -EINVAL;
126
127 if (copy_from_user(buf, user_buf, count))
128 return -EFAULT;
129
130 if (count && buf[count - 1] == '\n')
131 buf[count - 1] = '\0';
132 else
133 buf[count] = '\0';
134
135 if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
136 return count;
137 else if (sscanf(buf, "fq_memory_limit %u", &local->fq.memory_limit) == 1)
138 return count;
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,
148 .open = simple_open,
149 .llseek = default_llseek,
150};
151
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];
179
180 if (count >= sizeof(buf))
181 return -EINVAL;
182
183 if (copy_from_user(buf, user_buf, count))
184 return -EFAULT;
185
186 if (count && buf[count - 1] == '\n')
187 buf[count - 1] = '\0';
188 else
189 buf[count] = '\0';
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
204static ssize_t aql_txq_limit_read(struct file *file,
205 char __user *user_buf,
206 size_t count,
207 loff_t *ppos)
208{
209 struct ieee80211_local *local = file->private_data;
210 char buf[400];
211 int len = 0;
212
213 len = scnprintf(buf, sizeof(buf),
214 "AC AQL limit low AQL limit high\n"
215 "VO %u %u\n"
216 "VI %u %u\n"
217 "BE %u %u\n"
218 "BK %u %u\n",
219 local->aql_txq_limit_low[IEEE80211_AC_VO],
220 local->aql_txq_limit_high[IEEE80211_AC_VO],
221 local->aql_txq_limit_low[IEEE80211_AC_VI],
222 local->aql_txq_limit_high[IEEE80211_AC_VI],
223 local->aql_txq_limit_low[IEEE80211_AC_BE],
224 local->aql_txq_limit_high[IEEE80211_AC_BE],
225 local->aql_txq_limit_low[IEEE80211_AC_BK],
226 local->aql_txq_limit_high[IEEE80211_AC_BK]);
227 return simple_read_from_buffer(user_buf, count, ppos,
228 buf, len);
229}
230
231static ssize_t aql_txq_limit_write(struct file *file,
232 const char __user *user_buf,
233 size_t count,
234 loff_t *ppos)
235{
236 struct ieee80211_local *local = file->private_data;
237 char buf[100];
238 u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
239 struct sta_info *sta;
240
241 if (count >= sizeof(buf))
242 return -EINVAL;
243
244 if (copy_from_user(buf, user_buf, count))
245 return -EFAULT;
246
247 if (count && buf[count - 1] == '\n')
248 buf[count - 1] = '\0';
249 else
250 buf[count] = '\0';
251
252 if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
253 return -EINVAL;
254
255 if (ac >= IEEE80211_NUM_ACS)
256 return -EINVAL;
257
258 q_limit_low_old = local->aql_txq_limit_low[ac];
259 q_limit_high_old = local->aql_txq_limit_high[ac];
260
261 local->aql_txq_limit_low[ac] = q_limit_low;
262 local->aql_txq_limit_high[ac] = q_limit_high;
263
264 mutex_lock(&local->sta_mtx);
265 list_for_each_entry(sta, &local->sta_list, list) {
266 /* If a sta has customized queue limits, keep it */
267 if (sta->airtime[ac].aql_limit_low == q_limit_low_old &&
268 sta->airtime[ac].aql_limit_high == q_limit_high_old) {
269 sta->airtime[ac].aql_limit_low = q_limit_low;
270 sta->airtime[ac].aql_limit_high = q_limit_high;
271 }
272 }
273 mutex_unlock(&local->sta_mtx);
274 return count;
275}
276
277static const struct file_operations aql_txq_limit_ops = {
278 .write = aql_txq_limit_write,
279 .read = aql_txq_limit_read,
280 .open = simple_open,
281 .llseek = default_llseek,
282};
283
284static ssize_t aql_enable_read(struct file *file, char __user *user_buf,
285 size_t count, loff_t *ppos)
286{
287 char buf[3];
288 int len;
289
290 len = scnprintf(buf, sizeof(buf), "%d\n",
291 !static_key_false(&aql_disable.key));
292
293 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
294}
295
296static ssize_t aql_enable_write(struct file *file, const char __user *user_buf,
297 size_t count, loff_t *ppos)
298{
299 bool aql_disabled = static_key_false(&aql_disable.key);
300 char buf[3];
301 size_t len;
302
303 if (count > sizeof(buf))
304 return -EINVAL;
305
306 if (copy_from_user(buf, user_buf, count))
307 return -EFAULT;
308
309 buf[sizeof(buf) - 1] = '\0';
310 len = strlen(buf);
311 if (len > 0 && buf[len - 1] == '\n')
312 buf[len - 1] = 0;
313
314 if (buf[0] == '0' && buf[1] == '\0') {
315 if (!aql_disabled)
316 static_branch_inc(&aql_disable);
317 } else if (buf[0] == '1' && buf[1] == '\0') {
318 if (aql_disabled)
319 static_branch_dec(&aql_disable);
320 } else {
321 return -EINVAL;
322 }
323
324 return count;
325}
326
327static const struct file_operations aql_enable_ops = {
328 .write = aql_enable_write,
329 .read = aql_enable_read,
330 .open = simple_open,
331 .llseek = default_llseek,
332};
333
334static ssize_t force_tx_status_read(struct file *file,
335 char __user *user_buf,
336 size_t count,
337 loff_t *ppos)
338{
339 struct ieee80211_local *local = file->private_data;
340 char buf[3];
341 int len = 0;
342
343 len = scnprintf(buf, sizeof(buf), "%d\n", (int)local->force_tx_status);
344
345 return simple_read_from_buffer(user_buf, count, ppos,
346 buf, len);
347}
348
349static ssize_t force_tx_status_write(struct file *file,
350 const char __user *user_buf,
351 size_t count,
352 loff_t *ppos)
353{
354 struct ieee80211_local *local = file->private_data;
355 char buf[3];
356
357 if (count >= sizeof(buf))
358 return -EINVAL;
359
360 if (copy_from_user(buf, user_buf, count))
361 return -EFAULT;
362
363 if (count && buf[count - 1] == '\n')
364 buf[count - 1] = '\0';
365 else
366 buf[count] = '\0';
367
368 if (buf[0] == '0' && buf[1] == '\0')
369 local->force_tx_status = 0;
370 else if (buf[0] == '1' && buf[1] == '\0')
371 local->force_tx_status = 1;
372 else
373 return -EINVAL;
374
375 return count;
376}
377
378static const struct file_operations force_tx_status_ops = {
379 .write = force_tx_status_write,
380 .read = force_tx_status_read,
381 .open = simple_open,
382 .llseek = default_llseek,
383};
384
385#ifdef CONFIG_PM
386static ssize_t reset_write(struct file *file, const char __user *user_buf,
387 size_t count, loff_t *ppos)
388{
389 struct ieee80211_local *local = file->private_data;
390
391 rtnl_lock();
392 __ieee80211_suspend(&local->hw, NULL);
393 __ieee80211_resume(&local->hw);
394 rtnl_unlock();
395
396 return count;
397}
398
399static const struct file_operations reset_ops = {
400 .write = reset_write,
401 .open = simple_open,
402 .llseek = noop_llseek,
403};
404#endif
405
406static const char *hw_flag_names[] = {
407#define FLAG(F) [IEEE80211_HW_##F] = #F
408 FLAG(HAS_RATE_CONTROL),
409 FLAG(RX_INCLUDES_FCS),
410 FLAG(HOST_BROADCAST_PS_BUFFERING),
411 FLAG(SIGNAL_UNSPEC),
412 FLAG(SIGNAL_DBM),
413 FLAG(NEED_DTIM_BEFORE_ASSOC),
414 FLAG(SPECTRUM_MGMT),
415 FLAG(AMPDU_AGGREGATION),
416 FLAG(SUPPORTS_PS),
417 FLAG(PS_NULLFUNC_STACK),
418 FLAG(SUPPORTS_DYNAMIC_PS),
419 FLAG(MFP_CAPABLE),
420 FLAG(WANT_MONITOR_VIF),
421 FLAG(NO_AUTO_VIF),
422 FLAG(SW_CRYPTO_CONTROL),
423 FLAG(SUPPORT_FAST_XMIT),
424 FLAG(REPORTS_TX_ACK_STATUS),
425 FLAG(CONNECTION_MONITOR),
426 FLAG(QUEUE_CONTROL),
427 FLAG(SUPPORTS_PER_STA_GTK),
428 FLAG(AP_LINK_PS),
429 FLAG(TX_AMPDU_SETUP_IN_HW),
430 FLAG(SUPPORTS_RC_TABLE),
431 FLAG(P2P_DEV_ADDR_FOR_INTF),
432 FLAG(TIMING_BEACON_ONLY),
433 FLAG(SUPPORTS_HT_CCK_RATES),
434 FLAG(CHANCTX_STA_CSA),
435 FLAG(SUPPORTS_CLONED_SKBS),
436 FLAG(SINGLE_SCAN_ON_ALL_BANDS),
437 FLAG(TDLS_WIDER_BW),
438 FLAG(SUPPORTS_AMSDU_IN_AMPDU),
439 FLAG(BEACON_TX_STATUS),
440 FLAG(NEEDS_UNIQUE_STA_ADDR),
441 FLAG(SUPPORTS_REORDERING_BUFFER),
442 FLAG(USES_RSS),
443 FLAG(TX_AMSDU),
444 FLAG(TX_FRAG_LIST),
445 FLAG(REPORTS_LOW_ACK),
446 FLAG(SUPPORTS_TX_FRAG),
447 FLAG(SUPPORTS_TDLS_BUFFER_STA),
448 FLAG(DEAUTH_NEED_MGD_TX_PREP),
449 FLAG(DOESNT_SUPPORT_QOS_NDP),
450 FLAG(BUFF_MMPDU_TXQ),
451 FLAG(SUPPORTS_VHT_EXT_NSS_BW),
452 FLAG(STA_MMPDU_TXQ),
453 FLAG(TX_STATUS_NO_AMPDU_LEN),
454 FLAG(SUPPORTS_MULTI_BSSID),
455 FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
456 FLAG(AMPDU_KEYBORDER_SUPPORT),
457 FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
458 FLAG(SUPPORTS_RX_DECAP_OFFLOAD),
459#undef FLAG
460};
461
462static ssize_t hwflags_read(struct file *file, char __user *user_buf,
463 size_t count, loff_t *ppos)
464{
465 struct ieee80211_local *local = file->private_data;
466 size_t bufsz = 30 * NUM_IEEE80211_HW_FLAGS;
467 char *buf = kzalloc(bufsz, GFP_KERNEL);
468 char *pos = buf, *end = buf + bufsz - 1;
469 ssize_t rv;
470 int i;
471
472 if (!buf)
473 return -ENOMEM;
474
475 /* fail compilation if somebody adds or removes
476 * a flag without updating the name array above
477 */
478 BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
479
480 for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
481 if (test_bit(i, local->hw.flags))
482 pos += scnprintf(pos, end - pos, "%s\n",
483 hw_flag_names[i]);
484 }
485
486 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
487 kfree(buf);
488 return rv;
489}
490
491static ssize_t misc_read(struct file *file, char __user *user_buf,
492 size_t count, loff_t *ppos)
493{
494 struct ieee80211_local *local = file->private_data;
495 /* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
496 size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
497 char *buf;
498 char *pos, *end;
499 ssize_t rv;
500 int i;
501 int ln;
502
503 buf = kzalloc(bufsz, GFP_KERNEL);
504 if (!buf)
505 return -ENOMEM;
506
507 pos = buf;
508 end = buf + bufsz - 1;
509
510 pos += scnprintf(pos, end - pos, "pending:\n");
511
512 for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
513 ln = skb_queue_len(&local->pending[i]);
514 pos += scnprintf(pos, end - pos, "[%i] %d\n",
515 i, ln);
516 }
517
518 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
519 kfree(buf);
520 return rv;
521}
522
523static ssize_t queues_read(struct file *file, char __user *user_buf,
524 size_t count, loff_t *ppos)
525{
526 struct ieee80211_local *local = file->private_data;
527 unsigned long flags;
528 char buf[IEEE80211_MAX_QUEUES * 20];
529 int q, res = 0;
530
531 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
532 for (q = 0; q < local->hw.queues; q++)
533 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
534 local->queue_stop_reasons[q],
535 skb_queue_len(&local->pending[q]));
536 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
537
538 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
539}
540
541DEBUGFS_READONLY_FILE_OPS(hwflags);
542DEBUGFS_READONLY_FILE_OPS(queues);
543DEBUGFS_READONLY_FILE_OPS(misc);
544
545/* statistics stuff */
546
547static ssize_t format_devstat_counter(struct ieee80211_local *local,
548 char __user *userbuf,
549 size_t count, loff_t *ppos,
550 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
551 int buflen))
552{
553 struct ieee80211_low_level_stats stats;
554 char buf[20];
555 int res;
556
557 rtnl_lock();
558 res = drv_get_stats(local, &stats);
559 rtnl_unlock();
560 if (res)
561 return res;
562 res = printvalue(&stats, buf, sizeof(buf));
563 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
564}
565
566#define DEBUGFS_DEVSTATS_FILE(name) \
567static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
568 char *buf, int buflen) \
569{ \
570 return scnprintf(buf, buflen, "%u\n", stats->name); \
571} \
572static ssize_t stats_ ##name## _read(struct file *file, \
573 char __user *userbuf, \
574 size_t count, loff_t *ppos) \
575{ \
576 return format_devstat_counter(file->private_data, \
577 userbuf, \
578 count, \
579 ppos, \
580 print_devstats_##name); \
581} \
582 \
583static const struct file_operations stats_ ##name## _ops = { \
584 .read = stats_ ##name## _read, \
585 .open = simple_open, \
586 .llseek = generic_file_llseek, \
587};
588
589#define DEBUGFS_STATS_ADD(name) \
590 debugfs_create_u32(#name, 0400, statsd, &local->name);
591#define DEBUGFS_DEVSTATS_ADD(name) \
592 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
593
594DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
595DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
596DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
597DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
598
599void debugfs_hw_add(struct ieee80211_local *local)
600{
601 struct dentry *phyd = local->hw.wiphy->debugfsdir;
602 struct dentry *statsd;
603
604 if (!phyd)
605 return;
606
607 local->debugfs.keys = debugfs_create_dir("keys", phyd);
608
609 DEBUGFS_ADD(total_ps_buffered);
610 DEBUGFS_ADD(wep_iv);
611 DEBUGFS_ADD(rate_ctrl_alg);
612 DEBUGFS_ADD(queues);
613 DEBUGFS_ADD(misc);
614#ifdef CONFIG_PM
615 DEBUGFS_ADD_MODE(reset, 0200);
616#endif
617 DEBUGFS_ADD(hwflags);
618 DEBUGFS_ADD(user_power);
619 DEBUGFS_ADD(power);
620 DEBUGFS_ADD(hw_conf);
621 DEBUGFS_ADD_MODE(force_tx_status, 0600);
622 DEBUGFS_ADD_MODE(aql_enable, 0600);
623
624 if (local->ops->wake_tx_queue)
625 DEBUGFS_ADD_MODE(aqm, 0600);
626
627 DEBUGFS_ADD_MODE(airtime_flags, 0600);
628
629 DEBUGFS_ADD(aql_txq_limit);
630 debugfs_create_u32("aql_threshold", 0600,
631 phyd, &local->aql_threshold);
632
633 statsd = debugfs_create_dir("statistics", phyd);
634
635 /* if the dir failed, don't put all the other things into the root! */
636 if (!statsd)
637 return;
638
639#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
640 DEBUGFS_STATS_ADD(dot11TransmittedFragmentCount);
641 DEBUGFS_STATS_ADD(dot11MulticastTransmittedFrameCount);
642 DEBUGFS_STATS_ADD(dot11FailedCount);
643 DEBUGFS_STATS_ADD(dot11RetryCount);
644 DEBUGFS_STATS_ADD(dot11MultipleRetryCount);
645 DEBUGFS_STATS_ADD(dot11FrameDuplicateCount);
646 DEBUGFS_STATS_ADD(dot11ReceivedFragmentCount);
647 DEBUGFS_STATS_ADD(dot11MulticastReceivedFrameCount);
648 DEBUGFS_STATS_ADD(dot11TransmittedFrameCount);
649 DEBUGFS_STATS_ADD(tx_handlers_drop);
650 DEBUGFS_STATS_ADD(tx_handlers_queued);
651 DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
652 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
653 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
654 DEBUGFS_STATS_ADD(rx_handlers_drop);
655 DEBUGFS_STATS_ADD(rx_handlers_queued);
656 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
657 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
658 DEBUGFS_STATS_ADD(tx_expand_skb_head);
659 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
660 DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);
661 DEBUGFS_STATS_ADD(rx_handlers_fragments);
662 DEBUGFS_STATS_ADD(tx_status_drop);
663#endif
664 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
665 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
666 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
667 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
668}