1 /*
2 * Copyright (c) 2014-2017 Qualcomm Atheros, Inc.
3 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include "core.h"
19 #include "wmi-ops.h"
20 #include "txrx.h"
21 #include "debug.h"
22
ath10k_rx_stats_update_amsdu_subfrm(struct ath10k * ar,struct ath10k_sta_tid_stats * stats,u32 msdu_count)23 static void ath10k_rx_stats_update_amsdu_subfrm(struct ath10k *ar,
24 struct ath10k_sta_tid_stats *stats,
25 u32 msdu_count)
26 {
27 if (msdu_count == 1)
28 stats->rx_pkt_amsdu[ATH10K_AMSDU_SUBFRM_NUM_1]++;
29 else if (msdu_count == 2)
30 stats->rx_pkt_amsdu[ATH10K_AMSDU_SUBFRM_NUM_2]++;
31 else if (msdu_count == 3)
32 stats->rx_pkt_amsdu[ATH10K_AMSDU_SUBFRM_NUM_3]++;
33 else if (msdu_count == 4)
34 stats->rx_pkt_amsdu[ATH10K_AMSDU_SUBFRM_NUM_4]++;
35 else if (msdu_count > 4)
36 stats->rx_pkt_amsdu[ATH10K_AMSDU_SUBFRM_NUM_MORE]++;
37 }
38
ath10k_rx_stats_update_ampdu_subfrm(struct ath10k * ar,struct ath10k_sta_tid_stats * stats,u32 mpdu_count)39 static void ath10k_rx_stats_update_ampdu_subfrm(struct ath10k *ar,
40 struct ath10k_sta_tid_stats *stats,
41 u32 mpdu_count)
42 {
43 if (mpdu_count <= 10)
44 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_10]++;
45 else if (mpdu_count <= 20)
46 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_20]++;
47 else if (mpdu_count <= 30)
48 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_30]++;
49 else if (mpdu_count <= 40)
50 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_40]++;
51 else if (mpdu_count <= 50)
52 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_50]++;
53 else if (mpdu_count <= 60)
54 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_60]++;
55 else if (mpdu_count > 60)
56 stats->rx_pkt_ampdu[ATH10K_AMPDU_SUBFRM_NUM_MORE]++;
57 }
58
ath10k_sta_update_rx_tid_stats_ampdu(struct ath10k * ar,u16 peer_id,u8 tid,struct htt_rx_indication_mpdu_range * ranges,int num_ranges)59 void ath10k_sta_update_rx_tid_stats_ampdu(struct ath10k *ar, u16 peer_id, u8 tid,
60 struct htt_rx_indication_mpdu_range *ranges,
61 int num_ranges)
62 {
63 struct ath10k_sta *arsta;
64 struct ath10k_peer *peer;
65 int i;
66
67 if (tid > IEEE80211_NUM_TIDS || !(ar->sta_tid_stats_mask & BIT(tid)))
68 return;
69
70 rcu_read_lock();
71 spin_lock_bh(&ar->data_lock);
72
73 peer = ath10k_peer_find_by_id(ar, peer_id);
74 if (!peer)
75 goto out;
76
77 arsta = (struct ath10k_sta *)peer->sta->drv_priv;
78
79 for (i = 0; i < num_ranges; i++)
80 ath10k_rx_stats_update_ampdu_subfrm(ar,
81 &arsta->tid_stats[tid],
82 ranges[i].mpdu_count);
83
84 out:
85 spin_unlock_bh(&ar->data_lock);
86 rcu_read_unlock();
87 }
88
ath10k_sta_update_rx_tid_stats(struct ath10k * ar,u8 * first_hdr,unsigned long int num_msdus,enum ath10k_pkt_rx_err err,unsigned long int unchain_cnt,unsigned long int drop_cnt,unsigned long int drop_cnt_filter,unsigned long int queued_msdus)89 void ath10k_sta_update_rx_tid_stats(struct ath10k *ar, u8 *first_hdr,
90 unsigned long int num_msdus,
91 enum ath10k_pkt_rx_err err,
92 unsigned long int unchain_cnt,
93 unsigned long int drop_cnt,
94 unsigned long int drop_cnt_filter,
95 unsigned long int queued_msdus)
96 {
97 struct ieee80211_sta *sta;
98 struct ath10k_sta *arsta;
99 struct ieee80211_hdr *hdr;
100 struct ath10k_sta_tid_stats *stats;
101 u8 tid = IEEE80211_NUM_TIDS;
102 bool non_data_frm = false;
103
104 hdr = (struct ieee80211_hdr *)first_hdr;
105 if (!ieee80211_is_data(hdr->frame_control))
106 non_data_frm = true;
107
108 if (ieee80211_is_data_qos(hdr->frame_control))
109 tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
110
111 if (!(ar->sta_tid_stats_mask & BIT(tid)) || non_data_frm)
112 return;
113
114 rcu_read_lock();
115
116 sta = ieee80211_find_sta_by_ifaddr(ar->hw, hdr->addr2, NULL);
117 if (!sta)
118 goto exit;
119
120 arsta = (struct ath10k_sta *)sta->drv_priv;
121
122 spin_lock_bh(&ar->data_lock);
123 stats = &arsta->tid_stats[tid];
124 stats->rx_pkt_from_fw += num_msdus;
125 stats->rx_pkt_unchained += unchain_cnt;
126 stats->rx_pkt_drop_chained += drop_cnt;
127 stats->rx_pkt_drop_filter += drop_cnt_filter;
128 if (err != ATH10K_PKT_RX_ERR_MAX)
129 stats->rx_pkt_err[err] += queued_msdus;
130 stats->rx_pkt_queued_for_mac += queued_msdus;
131 ath10k_rx_stats_update_amsdu_subfrm(ar, &arsta->tid_stats[tid],
132 num_msdus);
133 spin_unlock_bh(&ar->data_lock);
134
135 exit:
136 rcu_read_unlock();
137 }
138
ath10k_sta_update_extd_stats_rx_duration(struct ath10k * ar,struct ath10k_fw_stats * stats)139 static void ath10k_sta_update_extd_stats_rx_duration(struct ath10k *ar,
140 struct ath10k_fw_stats *stats)
141 {
142 struct ath10k_fw_extd_stats_peer *peer;
143 struct ieee80211_sta *sta;
144 struct ath10k_sta *arsta;
145
146 rcu_read_lock();
147 list_for_each_entry(peer, &stats->peers_extd, list) {
148 sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
149 NULL);
150 if (!sta)
151 continue;
152 arsta = (struct ath10k_sta *)sta->drv_priv;
153 arsta->rx_duration += (u64)peer->rx_duration;
154 }
155 rcu_read_unlock();
156 }
157
ath10k_sta_update_stats_rx_duration(struct ath10k * ar,struct ath10k_fw_stats * stats)158 static void ath10k_sta_update_stats_rx_duration(struct ath10k *ar,
159 struct ath10k_fw_stats *stats)
160 {
161 struct ath10k_fw_stats_peer *peer;
162 struct ieee80211_sta *sta;
163 struct ath10k_sta *arsta;
164
165 rcu_read_lock();
166 list_for_each_entry(peer, &stats->peers, list) {
167 sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
168 NULL);
169 if (!sta)
170 continue;
171 arsta = (struct ath10k_sta *)sta->drv_priv;
172 arsta->rx_duration += (u64)peer->rx_duration;
173 }
174 rcu_read_unlock();
175 }
176
ath10k_sta_update_rx_duration(struct ath10k * ar,struct ath10k_fw_stats * stats)177 void ath10k_sta_update_rx_duration(struct ath10k *ar,
178 struct ath10k_fw_stats *stats)
179 {
180 if (stats->extended)
181 ath10k_sta_update_extd_stats_rx_duration(ar, stats);
182 else
183 ath10k_sta_update_stats_rx_duration(ar, stats);
184 }
185
ath10k_dbg_sta_read_aggr_mode(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)186 static ssize_t ath10k_dbg_sta_read_aggr_mode(struct file *file,
187 char __user *user_buf,
188 size_t count, loff_t *ppos)
189 {
190 struct ieee80211_sta *sta = file->private_data;
191 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
192 struct ath10k *ar = arsta->arvif->ar;
193 char buf[32];
194 int len = 0;
195
196 mutex_lock(&ar->conf_mutex);
197 len = scnprintf(buf, sizeof(buf) - len, "aggregation mode: %s\n",
198 (arsta->aggr_mode == ATH10K_DBG_AGGR_MODE_AUTO) ?
199 "auto" : "manual");
200 mutex_unlock(&ar->conf_mutex);
201
202 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
203 }
204
ath10k_dbg_sta_write_aggr_mode(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)205 static ssize_t ath10k_dbg_sta_write_aggr_mode(struct file *file,
206 const char __user *user_buf,
207 size_t count, loff_t *ppos)
208 {
209 struct ieee80211_sta *sta = file->private_data;
210 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
211 struct ath10k *ar = arsta->arvif->ar;
212 u32 aggr_mode;
213 int ret;
214
215 if (kstrtouint_from_user(user_buf, count, 0, &aggr_mode))
216 return -EINVAL;
217
218 if (aggr_mode >= ATH10K_DBG_AGGR_MODE_MAX)
219 return -EINVAL;
220
221 mutex_lock(&ar->conf_mutex);
222 if ((ar->state != ATH10K_STATE_ON) ||
223 (aggr_mode == arsta->aggr_mode)) {
224 ret = count;
225 goto out;
226 }
227
228 ret = ath10k_wmi_addba_clear_resp(ar, arsta->arvif->vdev_id, sta->addr);
229 if (ret) {
230 ath10k_warn(ar, "failed to clear addba session ret: %d\n", ret);
231 goto out;
232 }
233
234 arsta->aggr_mode = aggr_mode;
235 out:
236 mutex_unlock(&ar->conf_mutex);
237 return ret;
238 }
239
240 static const struct file_operations fops_aggr_mode = {
241 .read = ath10k_dbg_sta_read_aggr_mode,
242 .write = ath10k_dbg_sta_write_aggr_mode,
243 .open = simple_open,
244 .owner = THIS_MODULE,
245 .llseek = default_llseek,
246 };
247
ath10k_dbg_sta_write_addba(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)248 static ssize_t ath10k_dbg_sta_write_addba(struct file *file,
249 const char __user *user_buf,
250 size_t count, loff_t *ppos)
251 {
252 struct ieee80211_sta *sta = file->private_data;
253 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
254 struct ath10k *ar = arsta->arvif->ar;
255 u32 tid, buf_size;
256 int ret;
257 char buf[64] = {0};
258
259 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
260 user_buf, count);
261 if (ret <= 0)
262 return ret;
263
264 ret = sscanf(buf, "%u %u", &tid, &buf_size);
265 if (ret != 2)
266 return -EINVAL;
267
268 /* Valid TID values are 0 through 15 */
269 if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
270 return -EINVAL;
271
272 mutex_lock(&ar->conf_mutex);
273 if ((ar->state != ATH10K_STATE_ON) ||
274 (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
275 ret = count;
276 goto out;
277 }
278
279 ret = ath10k_wmi_addba_send(ar, arsta->arvif->vdev_id, sta->addr,
280 tid, buf_size);
281 if (ret) {
282 ath10k_warn(ar, "failed to send addba request: vdev_id %u peer %pM tid %u buf_size %u\n",
283 arsta->arvif->vdev_id, sta->addr, tid, buf_size);
284 }
285
286 ret = count;
287 out:
288 mutex_unlock(&ar->conf_mutex);
289 return ret;
290 }
291
292 static const struct file_operations fops_addba = {
293 .write = ath10k_dbg_sta_write_addba,
294 .open = simple_open,
295 .owner = THIS_MODULE,
296 .llseek = default_llseek,
297 };
298
ath10k_dbg_sta_write_addba_resp(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)299 static ssize_t ath10k_dbg_sta_write_addba_resp(struct file *file,
300 const char __user *user_buf,
301 size_t count, loff_t *ppos)
302 {
303 struct ieee80211_sta *sta = file->private_data;
304 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
305 struct ath10k *ar = arsta->arvif->ar;
306 u32 tid, status;
307 int ret;
308 char buf[64] = {0};
309
310 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
311 user_buf, count);
312 if (ret <= 0)
313 return ret;
314
315 ret = sscanf(buf, "%u %u", &tid, &status);
316 if (ret != 2)
317 return -EINVAL;
318
319 /* Valid TID values are 0 through 15 */
320 if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
321 return -EINVAL;
322
323 mutex_lock(&ar->conf_mutex);
324 if ((ar->state != ATH10K_STATE_ON) ||
325 (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
326 ret = count;
327 goto out;
328 }
329
330 ret = ath10k_wmi_addba_set_resp(ar, arsta->arvif->vdev_id, sta->addr,
331 tid, status);
332 if (ret) {
333 ath10k_warn(ar, "failed to send addba response: vdev_id %u peer %pM tid %u status%u\n",
334 arsta->arvif->vdev_id, sta->addr, tid, status);
335 }
336 ret = count;
337 out:
338 mutex_unlock(&ar->conf_mutex);
339 return ret;
340 }
341
342 static const struct file_operations fops_addba_resp = {
343 .write = ath10k_dbg_sta_write_addba_resp,
344 .open = simple_open,
345 .owner = THIS_MODULE,
346 .llseek = default_llseek,
347 };
348
ath10k_dbg_sta_write_delba(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)349 static ssize_t ath10k_dbg_sta_write_delba(struct file *file,
350 const char __user *user_buf,
351 size_t count, loff_t *ppos)
352 {
353 struct ieee80211_sta *sta = file->private_data;
354 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
355 struct ath10k *ar = arsta->arvif->ar;
356 u32 tid, initiator, reason;
357 int ret;
358 char buf[64] = {0};
359
360 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
361 user_buf, count);
362 if (ret <= 0)
363 return ret;
364
365 ret = sscanf(buf, "%u %u %u", &tid, &initiator, &reason);
366 if (ret != 3)
367 return -EINVAL;
368
369 /* Valid TID values are 0 through 15 */
370 if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
371 return -EINVAL;
372
373 mutex_lock(&ar->conf_mutex);
374 if ((ar->state != ATH10K_STATE_ON) ||
375 (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
376 ret = count;
377 goto out;
378 }
379
380 ret = ath10k_wmi_delba_send(ar, arsta->arvif->vdev_id, sta->addr,
381 tid, initiator, reason);
382 if (ret) {
383 ath10k_warn(ar, "failed to send delba: vdev_id %u peer %pM tid %u initiator %u reason %u\n",
384 arsta->arvif->vdev_id, sta->addr, tid, initiator,
385 reason);
386 }
387 ret = count;
388 out:
389 mutex_unlock(&ar->conf_mutex);
390 return ret;
391 }
392
393 static const struct file_operations fops_delba = {
394 .write = ath10k_dbg_sta_write_delba,
395 .open = simple_open,
396 .owner = THIS_MODULE,
397 .llseek = default_llseek,
398 };
399
ath10k_dbg_sta_read_peer_debug_trigger(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)400 static ssize_t ath10k_dbg_sta_read_peer_debug_trigger(struct file *file,
401 char __user *user_buf,
402 size_t count,
403 loff_t *ppos)
404 {
405 struct ieee80211_sta *sta = file->private_data;
406 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
407 struct ath10k *ar = arsta->arvif->ar;
408 char buf[8];
409 int len = 0;
410
411 mutex_lock(&ar->conf_mutex);
412 len = scnprintf(buf, sizeof(buf) - len,
413 "Write 1 to once trigger the debug logs\n");
414 mutex_unlock(&ar->conf_mutex);
415
416 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
417 }
418
419 static ssize_t
ath10k_dbg_sta_write_peer_debug_trigger(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)420 ath10k_dbg_sta_write_peer_debug_trigger(struct file *file,
421 const char __user *user_buf,
422 size_t count, loff_t *ppos)
423 {
424 struct ieee80211_sta *sta = file->private_data;
425 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
426 struct ath10k *ar = arsta->arvif->ar;
427 u8 peer_debug_trigger;
428 int ret;
429
430 if (kstrtou8_from_user(user_buf, count, 0, &peer_debug_trigger))
431 return -EINVAL;
432
433 if (peer_debug_trigger != 1)
434 return -EINVAL;
435
436 mutex_lock(&ar->conf_mutex);
437
438 if (ar->state != ATH10K_STATE_ON) {
439 ret = -ENETDOWN;
440 goto out;
441 }
442
443 ret = ath10k_wmi_peer_set_param(ar, arsta->arvif->vdev_id, sta->addr,
444 WMI_PEER_DEBUG, peer_debug_trigger);
445 if (ret) {
446 ath10k_warn(ar, "failed to set param to trigger peer tid logs for station ret: %d\n",
447 ret);
448 goto out;
449 }
450 out:
451 mutex_unlock(&ar->conf_mutex);
452 return count;
453 }
454
455 static const struct file_operations fops_peer_debug_trigger = {
456 .open = simple_open,
457 .read = ath10k_dbg_sta_read_peer_debug_trigger,
458 .write = ath10k_dbg_sta_write_peer_debug_trigger,
459 .owner = THIS_MODULE,
460 .llseek = default_llseek,
461 };
462
get_err_str(enum ath10k_pkt_rx_err i)463 static char *get_err_str(enum ath10k_pkt_rx_err i)
464 {
465 switch (i) {
466 case ATH10K_PKT_RX_ERR_FCS:
467 return "fcs_err";
468 case ATH10K_PKT_RX_ERR_TKIP:
469 return "tkip_err";
470 case ATH10K_PKT_RX_ERR_CRYPT:
471 return "crypt_err";
472 case ATH10K_PKT_RX_ERR_PEER_IDX_INVAL:
473 return "peer_idx_inval";
474 case ATH10K_PKT_RX_ERR_MAX:
475 return "unknown";
476 }
477
478 return "unknown";
479 }
480
get_num_ampdu_subfrm_str(enum ath10k_ampdu_subfrm_num i)481 static char *get_num_ampdu_subfrm_str(enum ath10k_ampdu_subfrm_num i)
482 {
483 switch (i) {
484 case ATH10K_AMPDU_SUBFRM_NUM_10:
485 return "upto 10";
486 case ATH10K_AMPDU_SUBFRM_NUM_20:
487 return "11-20";
488 case ATH10K_AMPDU_SUBFRM_NUM_30:
489 return "21-30";
490 case ATH10K_AMPDU_SUBFRM_NUM_40:
491 return "31-40";
492 case ATH10K_AMPDU_SUBFRM_NUM_50:
493 return "41-50";
494 case ATH10K_AMPDU_SUBFRM_NUM_60:
495 return "51-60";
496 case ATH10K_AMPDU_SUBFRM_NUM_MORE:
497 return ">60";
498 case ATH10K_AMPDU_SUBFRM_NUM_MAX:
499 return "0";
500 }
501
502 return "0";
503 }
504
get_num_amsdu_subfrm_str(enum ath10k_amsdu_subfrm_num i)505 static char *get_num_amsdu_subfrm_str(enum ath10k_amsdu_subfrm_num i)
506 {
507 switch (i) {
508 case ATH10K_AMSDU_SUBFRM_NUM_1:
509 return "1";
510 case ATH10K_AMSDU_SUBFRM_NUM_2:
511 return "2";
512 case ATH10K_AMSDU_SUBFRM_NUM_3:
513 return "3";
514 case ATH10K_AMSDU_SUBFRM_NUM_4:
515 return "4";
516 case ATH10K_AMSDU_SUBFRM_NUM_MORE:
517 return ">4";
518 case ATH10K_AMSDU_SUBFRM_NUM_MAX:
519 return "0";
520 }
521
522 return "0";
523 }
524
525 #define PRINT_TID_STATS(_field, _tabs) \
526 do { \
527 int k = 0; \
528 for (j = 0; j <= IEEE80211_NUM_TIDS; j++) { \
529 if (ar->sta_tid_stats_mask & BIT(j)) { \
530 len += scnprintf(buf + len, buf_len - len, \
531 "[%02d] %-10lu ", \
532 j, stats[j]._field); \
533 k++; \
534 if (k % 8 == 0) { \
535 len += scnprintf(buf + len, \
536 buf_len - len, "\n"); \
537 len += scnprintf(buf + len, \
538 buf_len - len, \
539 _tabs); \
540 } \
541 } \
542 } \
543 len += scnprintf(buf + len, buf_len - len, "\n"); \
544 } while (0)
545
ath10k_dbg_sta_read_tid_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)546 static ssize_t ath10k_dbg_sta_read_tid_stats(struct file *file,
547 char __user *user_buf,
548 size_t count, loff_t *ppos)
549 {
550 struct ieee80211_sta *sta = file->private_data;
551 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
552 struct ath10k *ar = arsta->arvif->ar;
553 struct ath10k_sta_tid_stats *stats = arsta->tid_stats;
554 size_t len = 0, buf_len = 1048 * IEEE80211_NUM_TIDS;
555 char *buf;
556 int i, j;
557 ssize_t ret;
558
559 buf = kzalloc(buf_len, GFP_KERNEL);
560 if (!buf)
561 return -ENOMEM;
562
563 mutex_lock(&ar->conf_mutex);
564
565 spin_lock_bh(&ar->data_lock);
566
567 len += scnprintf(buf + len, buf_len - len,
568 "\n\t\tDriver Rx pkt stats per tid, ([tid] count)\n");
569 len += scnprintf(buf + len, buf_len - len,
570 "\t\t------------------------------------------\n");
571 len += scnprintf(buf + len, buf_len - len, "MSDUs from FW\t\t\t");
572 PRINT_TID_STATS(rx_pkt_from_fw, "\t\t\t\t");
573
574 len += scnprintf(buf + len, buf_len - len, "MSDUs unchained\t\t\t");
575 PRINT_TID_STATS(rx_pkt_unchained, "\t\t\t\t");
576
577 len += scnprintf(buf + len, buf_len - len,
578 "MSDUs locally dropped:chained\t");
579 PRINT_TID_STATS(rx_pkt_drop_chained, "\t\t\t\t");
580
581 len += scnprintf(buf + len, buf_len - len,
582 "MSDUs locally dropped:filtered\t");
583 PRINT_TID_STATS(rx_pkt_drop_filter, "\t\t\t\t");
584
585 len += scnprintf(buf + len, buf_len - len,
586 "MSDUs queued for mac80211\t");
587 PRINT_TID_STATS(rx_pkt_queued_for_mac, "\t\t\t\t");
588
589 for (i = 0; i < ATH10K_PKT_RX_ERR_MAX; i++) {
590 len += scnprintf(buf + len, buf_len - len,
591 "MSDUs with error:%s\t", get_err_str(i));
592 PRINT_TID_STATS(rx_pkt_err[i], "\t\t\t\t");
593 }
594
595 len += scnprintf(buf + len, buf_len - len, "\n");
596 for (i = 0; i < ATH10K_AMPDU_SUBFRM_NUM_MAX; i++) {
597 len += scnprintf(buf + len, buf_len - len,
598 "A-MPDU num subframes %s\t",
599 get_num_ampdu_subfrm_str(i));
600 PRINT_TID_STATS(rx_pkt_ampdu[i], "\t\t\t\t");
601 }
602
603 len += scnprintf(buf + len, buf_len - len, "\n");
604 for (i = 0; i < ATH10K_AMSDU_SUBFRM_NUM_MAX; i++) {
605 len += scnprintf(buf + len, buf_len - len,
606 "A-MSDU num subframes %s\t\t",
607 get_num_amsdu_subfrm_str(i));
608 PRINT_TID_STATS(rx_pkt_amsdu[i], "\t\t\t\t");
609 }
610
611 spin_unlock_bh(&ar->data_lock);
612
613 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
614
615 kfree(buf);
616
617 mutex_unlock(&ar->conf_mutex);
618
619 return ret;
620 }
621
622 static const struct file_operations fops_tid_stats_dump = {
623 .open = simple_open,
624 .read = ath10k_dbg_sta_read_tid_stats,
625 .owner = THIS_MODULE,
626 .llseek = default_llseek,
627 };
628
ath10k_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct dentry * dir)629 void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
630 struct ieee80211_sta *sta, struct dentry *dir)
631 {
632 debugfs_create_file("aggr_mode", 0644, dir, sta, &fops_aggr_mode);
633 debugfs_create_file("addba", 0200, dir, sta, &fops_addba);
634 debugfs_create_file("addba_resp", 0200, dir, sta, &fops_addba_resp);
635 debugfs_create_file("delba", 0200, dir, sta, &fops_delba);
636 debugfs_create_file("peer_debug_trigger", 0600, dir, sta,
637 &fops_peer_debug_trigger);
638 debugfs_create_file("dump_tid_stats", 0400, dir, sta,
639 &fops_tid_stats_dump);
640 }
641
