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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / net / mac80211 / debugfs_sta.c
1 /*
2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/debugfs.h>
13 #include <linux/ieee80211.h>
14 #include "ieee80211_i.h"
15 #include "debugfs.h"
16 #include "debugfs_sta.h"
17 #include "sta_info.h"
18 #include "driver-ops.h"
19
20 /* sta attributtes */
21
22 #define STA_READ(name, field, format_string) \
23 static ssize_t sta_ ##name## _read(struct file *file, \
24 char __user *userbuf, \
25 size_t count, loff_t *ppos) \
26 { \
27 struct sta_info *sta = file->private_data; \
28 return mac80211_format_buffer(userbuf, count, ppos, \
29 format_string, sta->field); \
30 }
31 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
32 #define STA_READ_U(name, field) STA_READ(name, field, "%u\n")
33 #define STA_READ_S(name, field) STA_READ(name, field, "%s\n")
34
35 #define STA_OPS(name) \
36 static const struct file_operations sta_ ##name## _ops = { \
37 .read = sta_##name##_read, \
38 .open = simple_open, \
39 .llseek = generic_file_llseek, \
40 }
41
42 #define STA_OPS_W(name) \
43 static const struct file_operations sta_ ##name## _ops = { \
44 .write = sta_##name##_write, \
45 .open = simple_open, \
46 .llseek = generic_file_llseek, \
47 }
48
49 #define STA_OPS_RW(name) \
50 static const struct file_operations sta_ ##name## _ops = { \
51 .read = sta_##name##_read, \
52 .write = sta_##name##_write, \
53 .open = simple_open, \
54 .llseek = generic_file_llseek, \
55 }
56
57 #define STA_FILE(name, field, format) \
58 STA_READ_##format(name, field) \
59 STA_OPS(name)
60
61 STA_FILE(aid, sta.aid, D);
62 STA_FILE(dev, sdata->name, S);
63 STA_FILE(last_signal, last_signal, D);
64 STA_FILE(last_ack_signal, last_ack_signal, D);
65 STA_FILE(beacon_loss_count, beacon_loss_count, D);
66
67 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
68 size_t count, loff_t *ppos)
69 {
70 char buf[121];
71 struct sta_info *sta = file->private_data;
72
73 #define TEST(flg) \
74 test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
75
76 int res = scnprintf(buf, sizeof(buf),
77 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
78 TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
79 TEST(PS_DRIVER), TEST(AUTHORIZED),
80 TEST(SHORT_PREAMBLE),
81 sta->sta.wme ? "WME\n" : "",
82 TEST(WDS), TEST(CLEAR_PS_FILT),
83 TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
84 TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
85 TEST(TDLS_PEER_AUTH), TEST(TDLS_INITIATOR),
86 TEST(TDLS_CHAN_SWITCH), TEST(TDLS_OFF_CHANNEL),
87 TEST(4ADDR_EVENT), TEST(INSERTED),
88 TEST(RATE_CONTROL), TEST(TOFFSET_KNOWN),
89 TEST(MPSP_OWNER), TEST(MPSP_RECIPIENT));
90 #undef TEST
91 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
92 }
93 STA_OPS(flags);
94
95 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
96 char __user *userbuf,
97 size_t count, loff_t *ppos)
98 {
99 struct sta_info *sta = file->private_data;
100 char buf[17*IEEE80211_NUM_ACS], *p = buf;
101 int ac;
102
103 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
104 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
105 skb_queue_len(&sta->ps_tx_buf[ac]) +
106 skb_queue_len(&sta->tx_filtered[ac]));
107 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
108 }
109 STA_OPS(num_ps_buf_frames);
110
111 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
112 size_t count, loff_t *ppos)
113 {
114 struct sta_info *sta = file->private_data;
115 return mac80211_format_buffer(userbuf, count, ppos, "%d\n",
116 jiffies_to_msecs(jiffies - sta->last_rx));
117 }
118 STA_OPS(inactive_ms);
119
120
121 static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf,
122 size_t count, loff_t *ppos)
123 {
124 struct sta_info *sta = file->private_data;
125 struct timespec uptime;
126 struct tm result;
127 long connected_time_secs;
128 char buf[100];
129 int res;
130 ktime_get_ts(&uptime);
131 connected_time_secs = uptime.tv_sec - sta->last_connected;
132 time_to_tm(connected_time_secs, 0, &result);
133 result.tm_year -= 70;
134 result.tm_mday -= 1;
135 res = scnprintf(buf, sizeof(buf),
136 "years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n",
137 result.tm_year, result.tm_mon, result.tm_mday,
138 result.tm_hour, result.tm_min, result.tm_sec);
139 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
140 }
141 STA_OPS(connected_time);
142
143
144
145 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
146 size_t count, loff_t *ppos)
147 {
148 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
149 int i;
150 struct sta_info *sta = file->private_data;
151 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
152 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
153 le16_to_cpu(sta->last_seq_ctrl[i]));
154 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
155 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
156 }
157 STA_OPS(last_seq_ctrl);
158
159 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
160 size_t count, loff_t *ppos)
161 {
162 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
163 int i;
164 struct sta_info *sta = file->private_data;
165 struct tid_ampdu_rx *tid_rx;
166 struct tid_ampdu_tx *tid_tx;
167
168 rcu_read_lock();
169
170 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
171 sta->ampdu_mlme.dialog_token_allocator + 1);
172 p += scnprintf(p, sizeof(buf) + buf - p,
173 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
174
175 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
176 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
177 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
178
179 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
180 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
181 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
182 tid_rx ? tid_rx->dialog_token : 0);
183 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
184 tid_rx ? tid_rx->ssn : 0);
185
186 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
187 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
188 tid_tx ? tid_tx->dialog_token : 0);
189 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
190 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
191 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
192 }
193 rcu_read_unlock();
194
195 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
196 }
197
198 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
199 size_t count, loff_t *ppos)
200 {
201 char _buf[12] = {}, *buf = _buf;
202 struct sta_info *sta = file->private_data;
203 bool start, tx;
204 unsigned long tid;
205 int ret;
206
207 if (count > sizeof(_buf))
208 return -EINVAL;
209
210 if (copy_from_user(buf, userbuf, count))
211 return -EFAULT;
212
213 buf[sizeof(_buf) - 1] = '\0';
214
215 if (strncmp(buf, "tx ", 3) == 0) {
216 buf += 3;
217 tx = true;
218 } else if (strncmp(buf, "rx ", 3) == 0) {
219 buf += 3;
220 tx = false;
221 } else
222 return -EINVAL;
223
224 if (strncmp(buf, "start ", 6) == 0) {
225 buf += 6;
226 start = true;
227 if (!tx)
228 return -EINVAL;
229 } else if (strncmp(buf, "stop ", 5) == 0) {
230 buf += 5;
231 start = false;
232 } else
233 return -EINVAL;
234
235 ret = kstrtoul(buf, 0, &tid);
236 if (ret)
237 return ret;
238
239 if (tid >= IEEE80211_NUM_TIDS)
240 return -EINVAL;
241
242 if (tx) {
243 if (start)
244 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000);
245 else
246 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
247 } else {
248 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
249 3, true);
250 ret = 0;
251 }
252
253 return ret ?: count;
254 }
255 STA_OPS_RW(agg_status);
256
257 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
258 size_t count, loff_t *ppos)
259 {
260 #define PRINT_HT_CAP(_cond, _str) \
261 do { \
262 if (_cond) \
263 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
264 } while (0)
265 char buf[512], *p = buf;
266 int i;
267 struct sta_info *sta = file->private_data;
268 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
269
270 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
271 htc->ht_supported ? "" : "not ");
272 if (htc->ht_supported) {
273 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
274
275 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
276 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
277 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
278
279 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
280 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
281 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
282
283 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
284 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
285 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
286 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
287
288 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
289 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
290 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
291 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
292
293 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
294
295 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
296 "3839 bytes");
297 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
298 "7935 bytes");
299
300 /*
301 * For beacons and probe response this would mean the BSS
302 * does or does not allow the usage of DSSS/CCK HT40.
303 * Otherwise it means the STA does or does not use
304 * DSSS/CCK HT40.
305 */
306 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
307 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
308
309 /* BIT(13) is reserved */
310
311 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
312
313 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
314
315 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
316 htc->ampdu_factor, htc->ampdu_density);
317 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
318
319 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
320 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
321 htc->mcs.rx_mask[i]);
322 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
323
324 /* If not set this is meaningless */
325 if (le16_to_cpu(htc->mcs.rx_highest)) {
326 p += scnprintf(p, sizeof(buf)+buf-p,
327 "MCS rx highest: %d Mbps\n",
328 le16_to_cpu(htc->mcs.rx_highest));
329 }
330
331 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
332 htc->mcs.tx_params);
333 }
334
335 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
336 }
337 STA_OPS(ht_capa);
338
339 static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
340 size_t count, loff_t *ppos)
341 {
342 char buf[128], *p = buf;
343 struct sta_info *sta = file->private_data;
344 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
345
346 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
347 vhtc->vht_supported ? "" : "not ");
348 if (vhtc->vht_supported) {
349 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap);
350
351 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
352 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
353 if (vhtc->vht_mcs.rx_highest)
354 p += scnprintf(p, sizeof(buf)+buf-p,
355 "MCS RX highest: %d Mbps\n",
356 le16_to_cpu(vhtc->vht_mcs.rx_highest));
357 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
358 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
359 if (vhtc->vht_mcs.tx_highest)
360 p += scnprintf(p, sizeof(buf)+buf-p,
361 "MCS TX highest: %d Mbps\n",
362 le16_to_cpu(vhtc->vht_mcs.tx_highest));
363 }
364
365 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
366 }
367 STA_OPS(vht_capa);
368
369 static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
370 size_t count, loff_t *ppos)
371 {
372 struct sta_info *sta = file->private_data;
373 struct rate_info rinfo;
374 u16 rate;
375 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
376 rate = cfg80211_calculate_bitrate(&rinfo);
377
378 return mac80211_format_buffer(userbuf, count, ppos,
379 "%d.%d MBit/s\n",
380 rate/10, rate%10);
381 }
382 STA_OPS(current_tx_rate);
383
384 static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf,
385 size_t count, loff_t *ppos)
386 {
387 struct sta_info *sta = file->private_data;
388 struct rate_info rinfo;
389 u16 rate;
390
391 sta_set_rate_info_rx(sta, &rinfo);
392
393 rate = cfg80211_calculate_bitrate(&rinfo);
394
395 return mac80211_format_buffer(userbuf, count, ppos,
396 "%d.%d MBit/s\n",
397 rate/10, rate%10);
398 }
399 STA_OPS(last_rx_rate);
400
401 static int
402 sta_tx_latency_stat_header(struct ieee80211_tx_latency_bin_ranges *tx_latency,
403 char *buf, int pos, int bufsz)
404 {
405 int i;
406 int range_count = tx_latency->n_ranges;
407 u32 *bin_ranges = tx_latency->ranges;
408
409 pos += scnprintf(buf + pos, bufsz - pos,
410 "Station\t\t\tTID\tMax\tAvg");
411 if (range_count) {
412 pos += scnprintf(buf + pos, bufsz - pos,
413 "\t<=%d", bin_ranges[0]);
414 for (i = 0; i < range_count - 1; i++)
415 pos += scnprintf(buf + pos, bufsz - pos, "\t%d-%d",
416 bin_ranges[i], bin_ranges[i+1]);
417 pos += scnprintf(buf + pos, bufsz - pos,
418 "\t%d<", bin_ranges[range_count - 1]);
419 }
420
421 pos += scnprintf(buf + pos, bufsz - pos, "\n");
422
423 return pos;
424 }
425
426 static int
427 sta_tx_latency_stat_table(struct ieee80211_tx_latency_bin_ranges *tx_lat_range,
428 struct ieee80211_tx_latency_stat *tx_lat,
429 char *buf, int pos, int bufsz, int tid)
430 {
431 u32 avg = 0;
432 int j;
433 int bin_count = tx_lat->bin_count;
434
435 pos += scnprintf(buf + pos, bufsz - pos, "\t\t\t%d", tid);
436 /* make sure you don't divide in 0 */
437 if (tx_lat->counter)
438 avg = tx_lat->sum / tx_lat->counter;
439
440 pos += scnprintf(buf + pos, bufsz - pos, "\t%d\t%d",
441 tx_lat->max, avg);
442
443 if (tx_lat_range->n_ranges && tx_lat->bins)
444 for (j = 0; j < bin_count; j++)
445 pos += scnprintf(buf + pos, bufsz - pos,
446 "\t%d", tx_lat->bins[j]);
447 pos += scnprintf(buf + pos, bufsz - pos, "\n");
448
449 return pos;
450 }
451
452 /*
453 * Output Tx latency statistics station && restart all statistics information
454 */
455 static ssize_t sta_tx_latency_stat_read(struct file *file,
456 char __user *userbuf,
457 size_t count, loff_t *ppos)
458 {
459 struct sta_info *sta = file->private_data;
460 struct ieee80211_local *local = sta->local;
461 struct ieee80211_tx_latency_bin_ranges *tx_latency;
462 char *buf;
463 int bufsz, ret, i;
464 int pos = 0;
465
466 bufsz = 20 * IEEE80211_NUM_TIDS *
467 sizeof(struct ieee80211_tx_latency_stat);
468 buf = kzalloc(bufsz, GFP_KERNEL);
469 if (!buf)
470 return -ENOMEM;
471
472 rcu_read_lock();
473
474 tx_latency = rcu_dereference(local->tx_latency);
475
476 if (!sta->tx_lat) {
477 pos += scnprintf(buf + pos, bufsz - pos,
478 "Tx latency statistics are not enabled\n");
479 goto unlock;
480 }
481
482 pos = sta_tx_latency_stat_header(tx_latency, buf, pos, bufsz);
483
484 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", sta->sta.addr);
485 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
486 pos = sta_tx_latency_stat_table(tx_latency, &sta->tx_lat[i],
487 buf, pos, bufsz, i);
488 unlock:
489 rcu_read_unlock();
490
491 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
492 kfree(buf);
493
494 return ret;
495 }
496 STA_OPS(tx_latency_stat);
497
498 static ssize_t sta_tx_latency_stat_reset_write(struct file *file,
499 const char __user *userbuf,
500 size_t count, loff_t *ppos)
501 {
502 u32 *bins;
503 int bin_count;
504 struct sta_info *sta = file->private_data;
505 int i;
506
507 if (!sta->tx_lat)
508 return -EINVAL;
509
510 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
511 bins = sta->tx_lat[i].bins;
512 bin_count = sta->tx_lat[i].bin_count;
513
514 sta->tx_lat[i].max = 0;
515 sta->tx_lat[i].sum = 0;
516 sta->tx_lat[i].counter = 0;
517
518 if (bin_count)
519 memset(bins, 0, bin_count * sizeof(u32));
520 }
521
522 return count;
523 }
524 STA_OPS_W(tx_latency_stat_reset);
525
526 #define DEBUGFS_ADD(name) \
527 debugfs_create_file(#name, 0400, \
528 sta->debugfs.dir, sta, &sta_ ##name## _ops);
529
530 #define DEBUGFS_ADD_COUNTER(name, field) \
531 if (sizeof(sta->field) == sizeof(u32)) \
532 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
533 (u32 *) &sta->field); \
534 else \
535 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
536 (u64 *) &sta->field);
537
538 void ieee80211_sta_debugfs_add(struct sta_info *sta)
539 {
540 struct ieee80211_local *local = sta->local;
541 struct ieee80211_sub_if_data *sdata = sta->sdata;
542 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
543 u8 mac[3*ETH_ALEN];
544
545 sta->debugfs.add_has_run = true;
546
547 if (!stations_dir)
548 return;
549
550 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
551
552 /*
553 * This might fail due to a race condition:
554 * When mac80211 unlinks a station, the debugfs entries
555 * remain, but it is already possible to link a new
556 * station with the same address which triggers adding
557 * it to debugfs; therefore, if the old station isn't
558 * destroyed quickly enough the old station's debugfs
559 * dir might still be around.
560 */
561 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
562 if (!sta->debugfs.dir)
563 return;
564
565 DEBUGFS_ADD(flags);
566 DEBUGFS_ADD(num_ps_buf_frames);
567 DEBUGFS_ADD(inactive_ms);
568 DEBUGFS_ADD(connected_time);
569 DEBUGFS_ADD(last_seq_ctrl);
570 DEBUGFS_ADD(agg_status);
571 DEBUGFS_ADD(dev);
572 DEBUGFS_ADD(last_signal);
573 DEBUGFS_ADD(beacon_loss_count);
574 DEBUGFS_ADD(ht_capa);
575 DEBUGFS_ADD(vht_capa);
576 DEBUGFS_ADD(last_ack_signal);
577 DEBUGFS_ADD(current_tx_rate);
578 DEBUGFS_ADD(last_rx_rate);
579 DEBUGFS_ADD(tx_latency_stat);
580 DEBUGFS_ADD(tx_latency_stat_reset);
581
582 DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
583 DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
584 DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes);
585 DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes);
586 DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates);
587 DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments);
588 DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped);
589 DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments);
590 DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count);
591 DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed);
592 DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
593
594 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
595 debugfs_create_x32("driver_buffered_tids", 0400,
596 sta->debugfs.dir,
597 (u32 *)&sta->driver_buffered_tids);
598 else
599 debugfs_create_x64("driver_buffered_tids", 0400,
600 sta->debugfs.dir,
601 (u64 *)&sta->driver_buffered_tids);
602
603 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
604 }
605
606 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
607 {
608 struct ieee80211_local *local = sta->local;
609 struct ieee80211_sub_if_data *sdata = sta->sdata;
610
611 drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
612 debugfs_remove_recursive(sta->debugfs.dir);
613 sta->debugfs.dir = NULL;
614 }
Linux kernel - Deliverables
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