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iwlwifi: mvm: advertise support for DYNAMIC / STATIC SMPS
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63#include "mvm.h"
64#include "sta.h"
65#include "iwl-io.h"
66
67struct iwl_dbgfs_mvm_ctx {
68 struct iwl_mvm *mvm;
69 struct ieee80211_vif *vif;
70};
71
8ca151b5
JB		 72static ssize_t iwl_dbgfs_tx_flush_write(struct file *file,
73 const char __user *user_buf,
74 size_t count, loff_t *ppos)
75{
76 struct iwl_mvm *mvm = file->private_data;
77
78 char buf[16];
79 int buf_size, ret;
80 u32 scd_q_msk;
81
82 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
83 return -EIO;
84
85 memset(buf, 0, sizeof(buf));
86 buf_size = min(count, sizeof(buf) - 1);
87 if (copy_from_user(buf, user_buf, buf_size))
88 return -EFAULT;
89
90 if (sscanf(buf, "%x", &scd_q_msk) != 1)
91 return -EINVAL;
92
93 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
94
95 mutex_lock(&mvm->mutex);
96 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
97 mutex_unlock(&mvm->mutex);
98
99 return ret;
100}
101
102static ssize_t iwl_dbgfs_sta_drain_write(struct file *file,
103 const char __user *user_buf,
104 size_t count, loff_t *ppos)
105{
106 struct iwl_mvm *mvm = file->private_data;
107 struct ieee80211_sta *sta;
108
109 char buf[8];
110 int buf_size, sta_id, drain, ret;
111
112 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
113 return -EIO;
114
115 memset(buf, 0, sizeof(buf));
116 buf_size = min(count, sizeof(buf) - 1);
117 if (copy_from_user(buf, user_buf, buf_size))
118 return -EFAULT;
119
120 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
121 return -EINVAL;
122
123 mutex_lock(&mvm->mutex);
124
125 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
126 lockdep_is_held(&mvm->mutex));
127 if (IS_ERR_OR_NULL(sta))
128 ret = -ENOENT;
129 else
130 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
131 count;
132
133 mutex_unlock(&mvm->mutex);
134
135 return ret;
136}
137
138static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
139 size_t count, loff_t *ppos)
140{
141 struct iwl_mvm *mvm = file->private_data;
142 const struct fw_img *img;
143 int ofs, len, pos = 0;
144 size_t bufsz, ret;
145 char *buf;
146 u8 *ptr;
147
60191d99
JB		 148 if (!mvm->ucode_loaded)
149 return -EINVAL;
150
8ca151b5
JB		 151 /* default is to dump the entire data segment */
152 if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
8ca151b5 153 img = &mvm->fw->img[mvm->cur_ucode];
60191d99
JB		 154 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
155 len = img->sec[IWL_UCODE_SECTION_DATA].len;
156 } else {
157 ofs = mvm->dbgfs_sram_offset;
158 len = mvm->dbgfs_sram_len;
8ca151b5 159 }
8ca151b5
JB		 160
161 bufsz = len * 4 + 256;
162 buf = kzalloc(bufsz, GFP_KERNEL);
163 if (!buf)
164 return -ENOMEM;
165
166 ptr = kzalloc(len, GFP_KERNEL);
167 if (!ptr) {
168 kfree(buf);
169 return -ENOMEM;
170 }
171
172 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
60191d99 173 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
8ca151b5 174
60191d99 175 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
8ca151b5
JB		 176 for (ofs = 0; ofs < len; ofs += 16) {
177 pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
178 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
179 bufsz - pos, false);
180 pos += strlen(buf + pos);
181 if (bufsz - pos > 0)
182 buf[pos++] = '\n';
183 }
184
185 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
186
187 kfree(buf);
188 kfree(ptr);
189
190 return ret;
191}
192
193static ssize_t iwl_dbgfs_sram_write(struct file *file,
194 const char __user *user_buf, size_t count,
195 loff_t *ppos)
196{
197 struct iwl_mvm *mvm = file->private_data;
198 char buf[64];
199 int buf_size;
200 u32 offset, len;
201
202 memset(buf, 0, sizeof(buf));
203 buf_size = min(count, sizeof(buf) - 1);
204 if (copy_from_user(buf, user_buf, buf_size))
205 return -EFAULT;
206
207 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
208 if ((offset & 0x3) || (len & 0x3))
209 return -EINVAL;
210 mvm->dbgfs_sram_offset = offset;
211 mvm->dbgfs_sram_len = len;
212 } else {
213 mvm->dbgfs_sram_offset = 0;
214 mvm->dbgfs_sram_len = 0;
215 }
216
217 return count;
218}
219
220static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
221 size_t count, loff_t *ppos)
222{
223 struct iwl_mvm *mvm = file->private_data;
224 struct ieee80211_sta *sta;
225 char buf[400];
226 int i, pos = 0, bufsz = sizeof(buf);
227
228 mutex_lock(&mvm->mutex);
229
230 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
231 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
232 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
233 lockdep_is_held(&mvm->mutex));
234 if (!sta)
235 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
236 else if (IS_ERR(sta))
237 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
238 PTR_ERR(sta));
239 else
240 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
241 sta->addr);
242 }
243
244 mutex_unlock(&mvm->mutex);
245
246 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
247}
248
249static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file,
250 const char __user *user_buf,
251 size_t count, loff_t *ppos)
252{
253 struct iwl_mvm *mvm = file->private_data;
254 char buf[8] = {};
255 int allow;
256
257 if (!mvm->ucode_loaded)
258 return -EIO;
259
260 if (copy_from_user(buf, user_buf, sizeof(buf)))
261 return -EFAULT;
262
263 if (sscanf(buf, "%d", &allow) != 1)
264 return -EINVAL;
265
266 IWL_DEBUG_POWER(mvm, "%s device power down\n",
267 allow ? "allow" : "prevent");
268
269 /*
270 * TODO: Send REPLY_DEBUG_CMD (0xf0) when FW support it
271 */
272
273 return count;
274}
275
276static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
277 const char __user *user_buf,
278 size_t count, loff_t *ppos)
279{
280 struct iwl_mvm *mvm = file->private_data;
281 char buf[8] = {};
282 int allow;
283
284 if (copy_from_user(buf, user_buf, sizeof(buf)))
285 return -EFAULT;
286
287 if (sscanf(buf, "%d", &allow) != 1)
288 return -EINVAL;
289
290 IWL_DEBUG_POWER(mvm, "%s device power down in d3\n",
291 allow ? "allow" : "prevent");
292
293 /*
294 * TODO: When WoWLAN FW alive notification happens, driver will send
295 * REPLY_DEBUG_CMD setting power_down_allow flag according to
296 * mvm->prevent_power_down_d3
297 */
298 mvm->prevent_power_down_d3 = !allow;
299
300 return count;
301}
302
b571a697
AB		 303static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
304 struct ieee80211_vif *vif,
305 enum iwl_dbgfs_pm_mask param, int val)
306{
307 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
308 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
309
310 dbgfs_pm->mask |= param;
311
312 switch (param) {
313 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
314 struct ieee80211_hw *hw = mvm->hw;
315 int dtimper = hw->conf.ps_dtim_period ?: 1;
316 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
317
318 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
319 if (val * MSEC_PER_SEC < 3 * dtimper_msec) {
320 IWL_WARN(mvm,
321 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
322 val * MSEC_PER_SEC, 3 * dtimper_msec);
323 }
324 dbgfs_pm->keep_alive_seconds = val;
325 break;
326 }
327 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
328 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
329 val ? "enabled" : "disabled");
330 dbgfs_pm->skip_over_dtim = val;
331 break;
332 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
333 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
334 dbgfs_pm->skip_dtim_periods = val;
335 break;
336 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
337 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
338 dbgfs_pm->rx_data_timeout = val;
339 break;
340 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
341 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
342 dbgfs_pm->tx_data_timeout = val;
343 break;
344 case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
345 IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
346 dbgfs_pm->disable_power_off = val;
bd4ace2a
AB		 347 case MVM_DEBUGFS_PM_LPRX_ENA:
348 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
349 dbgfs_pm->lprx_ena = val;
350 break;
351 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
352 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
353 dbgfs_pm->lprx_rssi_threshold = val;
b571a697
AB		 354 break;
355 }
356}
357
358static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
359 const char __user *user_buf,
360 size_t count, loff_t *ppos)
361{
362 struct ieee80211_vif *vif = file->private_data;
363 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
364 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
365 enum iwl_dbgfs_pm_mask param;
366 char buf[32] = {};
367 int val;
368 int ret;
369
370 if (copy_from_user(buf, user_buf, sizeof(buf)))
371 return -EFAULT;
372
373 if (!strncmp("keep_alive=", buf, 11)) {
374 if (sscanf(buf + 11, "%d", &val) != 1)
375 return -EINVAL;
376 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
377 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
378 if (sscanf(buf + 15, "%d", &val) != 1)
379 return -EINVAL;
380 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
381 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
382 if (sscanf(buf + 18, "%d", &val) != 1)
383 return -EINVAL;
384 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
385 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
386 if (sscanf(buf + 16, "%d", &val) != 1)
387 return -EINVAL;
388 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
389 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
390 if (sscanf(buf + 16, "%d", &val) != 1)
391 return -EINVAL;
392 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
393 } else if (!strncmp("disable_power_off=", buf, 18)) {
394 if (sscanf(buf + 18, "%d", &val) != 1)
395 return -EINVAL;
396 param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
bd4ace2a
AB		 397 } else if (!strncmp("lprx=", buf, 5)) {
398 if (sscanf(buf + 5, "%d", &val) != 1)
399 return -EINVAL;
400 param = MVM_DEBUGFS_PM_LPRX_ENA;
401 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
402 if (sscanf(buf + 20, "%d", &val) != 1)
403 return -EINVAL;
404 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
405 POWER_LPRX_RSSI_THRESHOLD_MIN)
406 return -EINVAL;
407 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
b571a697
AB		 408 } else {
409 return -EINVAL;
410 }
411
412 mutex_lock(&mvm->mutex);
413 iwl_dbgfs_update_pm(mvm, vif, param, val);
414 ret = iwl_mvm_power_update_mode(mvm, vif);
415 mutex_unlock(&mvm->mutex);
416
417 return ret ?: count;
418}
419
420static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
421 char __user *user_buf,
422 size_t count, loff_t *ppos)
423{
424 struct ieee80211_vif *vif = file->private_data;
425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
426 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
b571a697
AB		 427 char buf[256];
428 int bufsz = sizeof(buf);
e811ada7 429 int pos;
b571a697 430
e811ada7 431 pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz);
b571a697
AB		 432
433 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
434}
435
63494374
JB		 436static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
437 char __user *user_buf,
438 size_t count, loff_t *ppos)
439{
440 struct ieee80211_vif *vif = file->private_data;
441 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
442 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
443 u8 ap_sta_id;
444 struct ieee80211_chanctx_conf *chanctx_conf;
445 char buf[512];
446 int bufsz = sizeof(buf);
447 int pos = 0;
448 int i;
449
450 mutex_lock(&mvm->mutex);
451
452 ap_sta_id = mvmvif->ap_sta_id;
453
454 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
455 mvmvif->id, mvmvif->color);
456 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
457 vif->bss_conf.bssid);
458 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
459 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) {
460 pos += scnprintf(buf+pos, bufsz-pos,
461 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
462 i, mvmvif->queue_params[i].txop,
463 mvmvif->queue_params[i].cw_min,
464 mvmvif->queue_params[i].cw_max,
465 mvmvif->queue_params[i].aifs,
466 mvmvif->queue_params[i].uapsd);
467 }
468
2b76ef13
EG		 469 if (vif->type == NL80211_IFTYPE_STATION &&
470 ap_sta_id != IWL_MVM_STATION_COUNT) {
471 struct ieee80211_sta *sta;
472 struct iwl_mvm_sta *mvm_sta;
473
474 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
475 lockdep_is_held(&mvm->mutex));
476 mvm_sta = (void *)sta->drv_priv;
477 pos += scnprintf(buf+pos, bufsz-pos,
478 "ap_sta_id %d - reduced Tx power %d\n",
479 ap_sta_id, mvm_sta->bt_reduced_txpower);
480 }
63494374
JB		 481
482 rcu_read_lock();
483 chanctx_conf = rcu_dereference(vif->chanctx_conf);
484 if (chanctx_conf) {
485 pos += scnprintf(buf+pos, bufsz-pos,
486 "idle rx chains %d, active rx chains: %d\n",
487 chanctx_conf->rx_chains_static,
488 chanctx_conf->rx_chains_dynamic);
489 }
490 rcu_read_unlock();
491
492 mutex_unlock(&mvm->mutex);
493
494 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
495}
496
10942342
EG		 497#define BT_MBOX_MSG(_notif, _num, _field) \
498 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
499 >> BT_MBOX##_num##_##_field##_POS)
500
501
502#define BT_MBOX_PRINT(_num, _field, _end) \
503 pos += scnprintf(buf + pos, bufsz - pos, \
504 "\t%s: %d%s", \
505 #_field, \
506 BT_MBOX_MSG(notif, _num, _field), \
507 true ? "\n" : ", ");
508
509static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
510 size_t count, loff_t *ppos)
511{
512 struct iwl_mvm *mvm = file->private_data;
513 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
514 char *buf;
515 int ret, pos = 0, bufsz = sizeof(char) * 1024;
516
517 buf = kmalloc(bufsz, GFP_KERNEL);
518 if (!buf)
519 return -ENOMEM;
520
521 mutex_lock(&mvm->mutex);
522
523 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
524
525 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
526 BT_MBOX_PRINT(0, LE_PROF1, false);
527 BT_MBOX_PRINT(0, LE_PROF2, false);
528 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
529 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
530 BT_MBOX_PRINT(0, INBAND_S, false);
531 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
532 BT_MBOX_PRINT(0, LE_SCAN, false);
533 BT_MBOX_PRINT(0, LE_ADV, false);
534 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
535 BT_MBOX_PRINT(0, OPEN_CON_1, true);
536
537 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
538
539 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
540 BT_MBOX_PRINT(1, IP_SR, false);
541 BT_MBOX_PRINT(1, LE_MSTR, false);
542 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
543 BT_MBOX_PRINT(1, MSG_TYPE, false);
544 BT_MBOX_PRINT(1, SSN, true);
545
546 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
547
548 BT_MBOX_PRINT(2, SNIFF_ACT, false);
549 BT_MBOX_PRINT(2, PAG, false);
550 BT_MBOX_PRINT(2, INQUIRY, false);
551 BT_MBOX_PRINT(2, CONN, false);
552 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
553 BT_MBOX_PRINT(2, DISC, false);
554 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
555 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
556 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
557 BT_MBOX_PRINT(2, SCO_DURATION, true);
558
559 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
560
561 BT_MBOX_PRINT(3, SCO_STATE, false);
562 BT_MBOX_PRINT(3, SNIFF_STATE, false);
563 BT_MBOX_PRINT(3, A2DP_STATE, false);
564 BT_MBOX_PRINT(3, ACL_STATE, false);
565 BT_MBOX_PRINT(3, MSTR_STATE, false);
566 BT_MBOX_PRINT(3, OBX_STATE, false);
567 BT_MBOX_PRINT(3, OPEN_CON_2, false);
568 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
569 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
570 BT_MBOX_PRINT(3, INBAND_P, false);
571 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
572 BT_MBOX_PRINT(3, SSN_2, false);
573 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
574
575 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
576 notif->bt_status);
577 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
578 notif->bt_open_conn);
579 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
580 notif->bt_traffic_load);
581 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
582 notif->bt_agg_traffic_load);
583 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
584 notif->bt_ci_compliance);
585
586 mutex_unlock(&mvm->mutex);
587
588 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
589 kfree(buf);
590
591 return ret;
592}
593#undef BT_MBOX_PRINT
594
490953ac
EG		 595static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
596 const char __user *user_buf,
597 size_t count, loff_t *ppos)
598{
599 struct iwl_mvm *mvm = file->private_data;
490953ac
EG		 600 int ret;
601
490953ac
EG		 602 mutex_lock(&mvm->mutex);
603
291aa7c4
EH		 604 /* allow one more restart that we're provoking here */
605 if (mvm->restart_fw >= 0)
606 mvm->restart_fw++;
607
490953ac
EG		 608 /* take the return value to make compiler happy - it will fail anyway */
609 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
610
611 mutex_unlock(&mvm->mutex);
612
490953ac
EG		 613 return count;
614}
615
b571a697
AB		 616static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
617 enum iwl_dbgfs_bf_mask param, int value)
618{
619 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
620 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
621
622 dbgfs_bf->mask |= param;
623
624 switch (param) {
625 case MVM_DEBUGFS_BF_ENERGY_DELTA:
626 dbgfs_bf->bf_energy_delta = value;
627 break;
628 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
629 dbgfs_bf->bf_roaming_energy_delta = value;
630 break;
631 case MVM_DEBUGFS_BF_ROAMING_STATE:
632 dbgfs_bf->bf_roaming_state = value;
633 break;
5dca7c24
HG		 634 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
635 dbgfs_bf->bf_temp_threshold = value;
636 break;
637 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
638 dbgfs_bf->bf_temp_fast_filter = value;
639 break;
640 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
641 dbgfs_bf->bf_temp_slow_filter = value;
b571a697
AB		 642 break;
643 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
644 dbgfs_bf->bf_enable_beacon_filter = value;
645 break;
646 case MVM_DEBUGFS_BF_DEBUG_FLAG:
647 dbgfs_bf->bf_debug_flag = value;
648 break;
649 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
650 dbgfs_bf->bf_escape_timer = value;
651 break;
652 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
653 dbgfs_bf->ba_enable_beacon_abort = value;
654 break;
655 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
656 dbgfs_bf->ba_escape_timer = value;
657 break;
658 }
659}
660
661static ssize_t iwl_dbgfs_bf_params_write(struct file *file,
662 const char __user *user_buf,
663 size_t count, loff_t *ppos)
664{
665 struct ieee80211_vif *vif = file->private_data;
666 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
667 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
668 enum iwl_dbgfs_bf_mask param;
669 char buf[256];
670 int buf_size;
671 int value;
672 int ret = 0;
673
674 memset(buf, 0, sizeof(buf));
675 buf_size = min(count, sizeof(buf) - 1);
676 if (copy_from_user(buf, user_buf, buf_size))
677 return -EFAULT;
678
679 if (!strncmp("bf_energy_delta=", buf, 16)) {
680 if (sscanf(buf+16, "%d", &value) != 1)
681 return -EINVAL;
682 if (value < IWL_BF_ENERGY_DELTA_MIN ||
683 value > IWL_BF_ENERGY_DELTA_MAX)
684 return -EINVAL;
685 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
686 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
687 if (sscanf(buf+24, "%d", &value) != 1)
688 return -EINVAL;
689 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
690 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
691 return -EINVAL;
692 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
693 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
694 if (sscanf(buf+17, "%d", &value) != 1)
695 return -EINVAL;
696 if (value < IWL_BF_ROAMING_STATE_MIN ||
697 value > IWL_BF_ROAMING_STATE_MAX)
698 return -EINVAL;
699 param = MVM_DEBUGFS_BF_ROAMING_STATE;
5dca7c24
HG		 700 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
701 if (sscanf(buf+18, "%d", &value) != 1)
702 return -EINVAL;
703 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
704 value > IWL_BF_TEMP_THRESHOLD_MAX)
705 return -EINVAL;
706 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
707 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
708 if (sscanf(buf+20, "%d", &value) != 1)
709 return -EINVAL;
710 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
711 value > IWL_BF_TEMP_FAST_FILTER_MAX)
712 return -EINVAL;
713 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
714 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
715 if (sscanf(buf+20, "%d", &value) != 1)
b571a697 716 return -EINVAL;
5dca7c24
HG		 717 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
718 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
b571a697 719 return -EINVAL;
5dca7c24 720 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
b571a697
AB		 721 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
722 if (sscanf(buf+24, "%d", &value) != 1)
723 return -EINVAL;
724 if (value < 0 || value > 1)
725 return -EINVAL;
726 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
727 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
728 if (sscanf(buf+14, "%d", &value) != 1)
729 return -EINVAL;
730 if (value < 0 || value > 1)
731 return -EINVAL;
732 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
733 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
734 if (sscanf(buf+16, "%d", &value) != 1)
735 return -EINVAL;
736 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
737 value > IWL_BF_ESCAPE_TIMER_MAX)
738 return -EINVAL;
739 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
740 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
741 if (sscanf(buf+16, "%d", &value) != 1)
742 return -EINVAL;
743 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
744 value > IWL_BA_ESCAPE_TIMER_MAX)
745 return -EINVAL;
746 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
747 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
748 if (sscanf(buf+23, "%d", &value) != 1)
749 return -EINVAL;
750 if (value < 0 || value > 1)
751 return -EINVAL;
752 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
753 } else {
754 return -EINVAL;
755 }
756
757 mutex_lock(&mvm->mutex);
758 iwl_dbgfs_update_bf(vif, param, value);
759 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
760 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
761 } else {
762 if (mvmvif->bf_enabled)
763 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
764 else
765 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
766 }
767 mutex_unlock(&mvm->mutex);
768
769 return ret ?: count;
770}
771
772static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
773 char __user *user_buf,
774 size_t count, loff_t *ppos)
775{
776 struct ieee80211_vif *vif = file->private_data;
777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
778 char buf[256];
779 int pos = 0;
780 const size_t bufsz = sizeof(buf);
781 struct iwl_beacon_filter_cmd cmd = {
5dca7c24
HG		 782 IWL_BF_CMD_CONFIG_DEFAULTS,
783 .bf_enable_beacon_filter =
784 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
785 .ba_enable_beacon_abort =
786 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
b571a697
AB		 787 };
788
789 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
790 if (mvmvif->bf_enabled)
5dca7c24 791 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
b571a697
AB		 792 else
793 cmd.bf_enable_beacon_filter = 0;
794
795 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
5dca7c24 796 le32_to_cpu(cmd.bf_energy_delta));
b571a697 797 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
5dca7c24 798 le32_to_cpu(cmd.bf_roaming_energy_delta));
b571a697 799 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
5dca7c24
HG		 800 le32_to_cpu(cmd.bf_roaming_state));
801 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
802 le32_to_cpu(cmd.bf_temp_threshold));
803 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
804 le32_to_cpu(cmd.bf_temp_fast_filter));
805 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
806 le32_to_cpu(cmd.bf_temp_slow_filter));
b571a697 807 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
5dca7c24 808 le32_to_cpu(cmd.bf_enable_beacon_filter));
b571a697 809 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
5dca7c24 810 le32_to_cpu(cmd.bf_debug_flag));
b571a697 811 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
5dca7c24 812 le32_to_cpu(cmd.bf_escape_timer));
b571a697 813 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
5dca7c24 814 le32_to_cpu(cmd.ba_escape_timer));
b571a697 815 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
5dca7c24 816 le32_to_cpu(cmd.ba_enable_beacon_abort));
b571a697
AB		 817
818 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
819}
820
afc66bb7
JB		 821#ifdef CONFIG_PM_SLEEP
822static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
823 const char __user *user_buf,
824 size_t count, loff_t *ppos)
825{
826 struct iwl_mvm *mvm = file->private_data;
827 char buf[8] = {};
828 int store;
829
830 if (copy_from_user(buf, user_buf, sizeof(buf)))
831 return -EFAULT;
832
833 if (sscanf(buf, "%d", &store) != 1)
834 return -EINVAL;
835
836 mvm->store_d3_resume_sram = store;
837
838 return count;
839}
840
841static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
842 size_t count, loff_t *ppos)
843{
844 struct iwl_mvm *mvm = file->private_data;
845 const struct fw_img *img;
846 int ofs, len, pos = 0;
847 size_t bufsz, ret;
848 char *buf;
849 u8 *ptr = mvm->d3_resume_sram;
850
851 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
852 len = img->sec[IWL_UCODE_SECTION_DATA].len;
853
854 bufsz = len * 4 + 256;
855 buf = kzalloc(bufsz, GFP_KERNEL);
856 if (!buf)
857 return -ENOMEM;
858
859 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
860 mvm->store_d3_resume_sram ? "en" : "dis");
861
862 if (ptr) {
863 for (ofs = 0; ofs < len; ofs += 16) {
864 pos += scnprintf(buf + pos, bufsz - pos,
865 "0x%.4x ", ofs);
866 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
867 bufsz - pos, false);
868 pos += strlen(buf + pos);
869 if (bufsz - pos > 0)
870 buf[pos++] = '\n';
871 }
872 } else {
873 pos += scnprintf(buf + pos, bufsz - pos,
874 "(no data captured)\n");
875 }
876
877 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
878
879 kfree(buf);
880
881 return ret;
882}
883#endif
884
8ca151b5
JB		 885#define MVM_DEBUGFS_READ_FILE_OPS(name) \
886static const struct file_operations iwl_dbgfs_##name##_ops = { \
887 .read = iwl_dbgfs_##name##_read, \
ba5295f8 888 .open = simple_open, \
8ca151b5
JB		 889 .llseek = generic_file_llseek, \
890}
891
892#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name) \
893static const struct file_operations iwl_dbgfs_##name##_ops = { \
894 .write = iwl_dbgfs_##name##_write, \
895 .read = iwl_dbgfs_##name##_read, \
ba5295f8 896 .open = simple_open, \
8ca151b5
JB		 897 .llseek = generic_file_llseek, \
898};
899
900#define MVM_DEBUGFS_WRITE_FILE_OPS(name) \
901static const struct file_operations iwl_dbgfs_##name##_ops = { \
902 .write = iwl_dbgfs_##name##_write, \
ba5295f8 903 .open = simple_open, \
8ca151b5
JB		 904 .llseek = generic_file_llseek, \
905};
906
907#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \
908 if (!debugfs_create_file(#name, mode, parent, mvm, \
909 &iwl_dbgfs_##name##_ops)) \
910 goto err; \
911 } while (0)
912
913#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
914 if (!debugfs_create_file(#name, mode, parent, vif, \
915 &iwl_dbgfs_##name##_ops)) \
916 goto err; \
917 } while (0)
918
919/* Device wide debugfs entries */
920MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
921MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
922MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
923MVM_DEBUGFS_READ_FILE_OPS(stations);
10942342 924MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
8ca151b5
JB		 925MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
926MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
490953ac 927MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
afc66bb7
JB		 928#ifdef CONFIG_PM_SLEEP
929MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
930#endif
8ca151b5 931
63494374
JB		 932/* Interface specific debugfs entries */
933MVM_DEBUGFS_READ_FILE_OPS(mac_params);
b571a697
AB		 934MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params);
935MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params);
63494374 936
8ca151b5
JB		 937int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
938{
939 char buf[100];
940
941 mvm->debugfs_dir = dbgfs_dir;
942
943 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
944 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
945 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
946 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
10942342 947 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
8ca151b5
JB		 948 MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
949 MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
490953ac 950 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
afc66bb7
JB		 951#ifdef CONFIG_PM_SLEEP
952 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
debff618 953 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
b0114714
JB		 954 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
955 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
956 goto err;
afc66bb7 957#endif
8ca151b5
JB		 958
959 /*
960 * Create a symlink with mac80211. It will be removed when mac80211
961 * exists (before the opmode exists which removes the target.)
962 */
963 snprintf(buf, 100, "../../%s/%s",
964 dbgfs_dir->d_parent->d_parent->d_name.name,
965 dbgfs_dir->d_parent->d_name.name);
966 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
967 goto err;
968
969 return 0;
970err:
971 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
972 return -ENOMEM;
973}
63494374
JB		 974
975void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
976{
977 struct dentry *dbgfs_dir = vif->debugfs_dir;
978 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
979 char buf[100];
980
981 if (!dbgfs_dir)
982 return;
983
984 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
985 mvmvif->dbgfs_data = mvm;
986
987 if (!mvmvif->dbgfs_dir) {
988 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
989 dbgfs_dir->d_name.name);
990 return;
991 }
992
b571a697
AB		 993 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
994 vif->type == NL80211_IFTYPE_STATION && !vif->p2p)
995 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
996 S_IRUSR);
997
63494374
JB		 998 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
999 S_IRUSR);
1000
b571a697
AB		 1001 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1002 mvmvif == mvm->bf_allowed_vif)
1003 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
1004 S_IRUSR | S_IWUSR);
1005
63494374
JB		 1006 /*
1007 * Create symlink for convenience pointing to interface specific
1008 * debugfs entries for the driver. For example, under
1009 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1010 * find
1011 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1012 */
1013 snprintf(buf, 100, "../../../%s/%s/%s/%s",
1014 dbgfs_dir->d_parent->d_parent->d_name.name,
1015 dbgfs_dir->d_parent->d_name.name,
1016 dbgfs_dir->d_name.name,
1017 mvmvif->dbgfs_dir->d_name.name);
1018
1019 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1020 mvm->debugfs_dir, buf);
1021 if (!mvmvif->dbgfs_slink)
1022 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
1023 dbgfs_dir->d_name.name);
1024 return;
1025err:
1026 IWL_ERR(mvm, "Can't create debugfs entity\n");
1027}
1028
1029void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1030{
1031 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1032
1033 debugfs_remove(mvmvif->dbgfs_slink);
1034 mvmvif->dbgfs_slink = NULL;
1035
1036 debugfs_remove_recursive(mvmvif->dbgfs_dir);
1037 mvmvif->dbgfs_dir = NULL;
1038}
Linux kernel - Deliverables
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