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selinux: fix overflow and 0 length allocations
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / debugfs-vif.c
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 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 Intel Deutschland GmbH
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67 #include "mvm.h"
68 #include "fw-api-tof.h"
69 #include "debugfs.h"
70
71 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
72 struct ieee80211_vif *vif,
73 enum iwl_dbgfs_pm_mask param, int val)
74 {
75 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
76 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
77
78 dbgfs_pm->mask |= param;
79
80 switch (param) {
81 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
82 int dtimper = vif->bss_conf.dtim_period ?: 1;
83 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
84
85 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
86 if (val * MSEC_PER_SEC < 3 * dtimper_msec)
87 IWL_WARN(mvm,
88 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
89 val * MSEC_PER_SEC, 3 * dtimper_msec);
90 dbgfs_pm->keep_alive_seconds = val;
91 break;
92 }
93 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
94 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
95 val ? "enabled" : "disabled");
96 dbgfs_pm->skip_over_dtim = val;
97 break;
98 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
99 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
100 dbgfs_pm->skip_dtim_periods = val;
101 break;
102 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
103 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
104 dbgfs_pm->rx_data_timeout = val;
105 break;
106 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
107 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
108 dbgfs_pm->tx_data_timeout = val;
109 break;
110 case MVM_DEBUGFS_PM_LPRX_ENA:
111 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
112 dbgfs_pm->lprx_ena = val;
113 break;
114 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
115 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
116 dbgfs_pm->lprx_rssi_threshold = val;
117 break;
118 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
119 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
120 dbgfs_pm->snooze_ena = val;
121 break;
122 case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
123 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
124 dbgfs_pm->uapsd_misbehaving = val;
125 break;
126 case MVM_DEBUGFS_PM_USE_PS_POLL:
127 IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);
128 dbgfs_pm->use_ps_poll = val;
129 break;
130 }
131 }
132
133 static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
134 size_t count, loff_t *ppos)
135 {
136 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
137 struct iwl_mvm *mvm = mvmvif->mvm;
138 enum iwl_dbgfs_pm_mask param;
139 int val, ret;
140
141 if (!strncmp("keep_alive=", buf, 11)) {
142 if (sscanf(buf + 11, "%d", &val) != 1)
143 return -EINVAL;
144 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
145 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
146 if (sscanf(buf + 15, "%d", &val) != 1)
147 return -EINVAL;
148 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
149 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
150 if (sscanf(buf + 18, "%d", &val) != 1)
151 return -EINVAL;
152 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
153 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
154 if (sscanf(buf + 16, "%d", &val) != 1)
155 return -EINVAL;
156 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
157 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
158 if (sscanf(buf + 16, "%d", &val) != 1)
159 return -EINVAL;
160 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
161 } else if (!strncmp("lprx=", buf, 5)) {
162 if (sscanf(buf + 5, "%d", &val) != 1)
163 return -EINVAL;
164 param = MVM_DEBUGFS_PM_LPRX_ENA;
165 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
166 if (sscanf(buf + 20, "%d", &val) != 1)
167 return -EINVAL;
168 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
169 POWER_LPRX_RSSI_THRESHOLD_MIN)
170 return -EINVAL;
171 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
172 } else if (!strncmp("snooze_enable=", buf, 14)) {
173 if (sscanf(buf + 14, "%d", &val) != 1)
174 return -EINVAL;
175 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
176 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
177 if (sscanf(buf + 18, "%d", &val) != 1)
178 return -EINVAL;
179 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
180 } else if (!strncmp("use_ps_poll=", buf, 12)) {
181 if (sscanf(buf + 12, "%d", &val) != 1)
182 return -EINVAL;
183 param = MVM_DEBUGFS_PM_USE_PS_POLL;
184 } else {
185 return -EINVAL;
186 }
187
188 mutex_lock(&mvm->mutex);
189 iwl_dbgfs_update_pm(mvm, vif, param, val);
190 ret = iwl_mvm_power_update_mac(mvm);
191 mutex_unlock(&mvm->mutex);
192
193 return ret ?: count;
194 }
195
196 static ssize_t iwl_dbgfs_tx_pwr_lmt_read(struct file *file,
197 char __user *user_buf,
198 size_t count, loff_t *ppos)
199 {
200 struct ieee80211_vif *vif = file->private_data;
201 char buf[64];
202 int bufsz = sizeof(buf);
203 int pos;
204
205 pos = scnprintf(buf, bufsz, "bss limit = %d\n",
206 vif->bss_conf.txpower);
207
208 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
209 }
210
211 static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
212 char __user *user_buf,
213 size_t count, loff_t *ppos)
214 {
215 struct ieee80211_vif *vif = file->private_data;
216 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
217 struct iwl_mvm *mvm = mvmvif->mvm;
218 char buf[512];
219 int bufsz = sizeof(buf);
220 int pos;
221
222 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
223
224 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
225 }
226
227 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
228 char __user *user_buf,
229 size_t count, loff_t *ppos)
230 {
231 struct ieee80211_vif *vif = file->private_data;
232 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
233 struct iwl_mvm *mvm = mvmvif->mvm;
234 u8 ap_sta_id;
235 struct ieee80211_chanctx_conf *chanctx_conf;
236 char buf[512];
237 int bufsz = sizeof(buf);
238 int pos = 0;
239 int i;
240
241 mutex_lock(&mvm->mutex);
242
243 ap_sta_id = mvmvif->ap_sta_id;
244
245 switch (ieee80211_vif_type_p2p(vif)) {
246 case NL80211_IFTYPE_ADHOC:
247 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
248 break;
249 case NL80211_IFTYPE_STATION:
250 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
251 break;
252 case NL80211_IFTYPE_AP:
253 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
254 break;
255 case NL80211_IFTYPE_P2P_CLIENT:
256 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
257 break;
258 case NL80211_IFTYPE_P2P_GO:
259 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
260 break;
261 case NL80211_IFTYPE_P2P_DEVICE:
262 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
263 break;
264 default:
265 break;
266 }
267
268 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
269 mvmvif->id, mvmvif->color);
270 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
271 vif->bss_conf.bssid);
272 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
273 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
274 pos += scnprintf(buf+pos, bufsz-pos,
275 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
276 i, mvmvif->queue_params[i].txop,
277 mvmvif->queue_params[i].cw_min,
278 mvmvif->queue_params[i].cw_max,
279 mvmvif->queue_params[i].aifs,
280 mvmvif->queue_params[i].uapsd);
281
282 if (vif->type == NL80211_IFTYPE_STATION &&
283 ap_sta_id != IWL_MVM_STATION_COUNT) {
284 struct iwl_mvm_sta *mvm_sta;
285
286 mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
287 if (mvm_sta) {
288 pos += scnprintf(buf+pos, bufsz-pos,
289 "ap_sta_id %d - reduced Tx power %d\n",
290 ap_sta_id,
291 mvm_sta->bt_reduced_txpower);
292 }
293 }
294
295 rcu_read_lock();
296 chanctx_conf = rcu_dereference(vif->chanctx_conf);
297 if (chanctx_conf)
298 pos += scnprintf(buf+pos, bufsz-pos,
299 "idle rx chains %d, active rx chains: %d\n",
300 chanctx_conf->rx_chains_static,
301 chanctx_conf->rx_chains_dynamic);
302 rcu_read_unlock();
303
304 mutex_unlock(&mvm->mutex);
305
306 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
307 }
308
309 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
310 enum iwl_dbgfs_bf_mask param, int value)
311 {
312 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
313 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
314
315 dbgfs_bf->mask |= param;
316
317 switch (param) {
318 case MVM_DEBUGFS_BF_ENERGY_DELTA:
319 dbgfs_bf->bf_energy_delta = value;
320 break;
321 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
322 dbgfs_bf->bf_roaming_energy_delta = value;
323 break;
324 case MVM_DEBUGFS_BF_ROAMING_STATE:
325 dbgfs_bf->bf_roaming_state = value;
326 break;
327 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
328 dbgfs_bf->bf_temp_threshold = value;
329 break;
330 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
331 dbgfs_bf->bf_temp_fast_filter = value;
332 break;
333 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
334 dbgfs_bf->bf_temp_slow_filter = value;
335 break;
336 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
337 dbgfs_bf->bf_enable_beacon_filter = value;
338 break;
339 case MVM_DEBUGFS_BF_DEBUG_FLAG:
340 dbgfs_bf->bf_debug_flag = value;
341 break;
342 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
343 dbgfs_bf->bf_escape_timer = value;
344 break;
345 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
346 dbgfs_bf->ba_enable_beacon_abort = value;
347 break;
348 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
349 dbgfs_bf->ba_escape_timer = value;
350 break;
351 }
352 }
353
354 static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
355 size_t count, loff_t *ppos)
356 {
357 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
358 struct iwl_mvm *mvm = mvmvif->mvm;
359 enum iwl_dbgfs_bf_mask param;
360 int value, ret = 0;
361
362 if (!strncmp("bf_energy_delta=", buf, 16)) {
363 if (sscanf(buf+16, "%d", &value) != 1)
364 return -EINVAL;
365 if (value < IWL_BF_ENERGY_DELTA_MIN ||
366 value > IWL_BF_ENERGY_DELTA_MAX)
367 return -EINVAL;
368 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
369 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
370 if (sscanf(buf+24, "%d", &value) != 1)
371 return -EINVAL;
372 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
373 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
374 return -EINVAL;
375 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
376 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
377 if (sscanf(buf+17, "%d", &value) != 1)
378 return -EINVAL;
379 if (value < IWL_BF_ROAMING_STATE_MIN ||
380 value > IWL_BF_ROAMING_STATE_MAX)
381 return -EINVAL;
382 param = MVM_DEBUGFS_BF_ROAMING_STATE;
383 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
384 if (sscanf(buf+18, "%d", &value) != 1)
385 return -EINVAL;
386 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
387 value > IWL_BF_TEMP_THRESHOLD_MAX)
388 return -EINVAL;
389 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
390 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
391 if (sscanf(buf+20, "%d", &value) != 1)
392 return -EINVAL;
393 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
394 value > IWL_BF_TEMP_FAST_FILTER_MAX)
395 return -EINVAL;
396 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
397 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
398 if (sscanf(buf+20, "%d", &value) != 1)
399 return -EINVAL;
400 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
401 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
402 return -EINVAL;
403 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
404 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
405 if (sscanf(buf+24, "%d", &value) != 1)
406 return -EINVAL;
407 if (value < 0 || value > 1)
408 return -EINVAL;
409 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
410 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
411 if (sscanf(buf+14, "%d", &value) != 1)
412 return -EINVAL;
413 if (value < 0 || value > 1)
414 return -EINVAL;
415 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
416 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
417 if (sscanf(buf+16, "%d", &value) != 1)
418 return -EINVAL;
419 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
420 value > IWL_BF_ESCAPE_TIMER_MAX)
421 return -EINVAL;
422 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
423 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
424 if (sscanf(buf+16, "%d", &value) != 1)
425 return -EINVAL;
426 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
427 value > IWL_BA_ESCAPE_TIMER_MAX)
428 return -EINVAL;
429 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
430 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
431 if (sscanf(buf+23, "%d", &value) != 1)
432 return -EINVAL;
433 if (value < 0 || value > 1)
434 return -EINVAL;
435 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
436 } else {
437 return -EINVAL;
438 }
439
440 mutex_lock(&mvm->mutex);
441 iwl_dbgfs_update_bf(vif, param, value);
442 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
443 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
444 else
445 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
446 mutex_unlock(&mvm->mutex);
447
448 return ret ?: count;
449 }
450
451 static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
452 char __user *user_buf,
453 size_t count, loff_t *ppos)
454 {
455 struct ieee80211_vif *vif = file->private_data;
456 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
457 char buf[256];
458 int pos = 0;
459 const size_t bufsz = sizeof(buf);
460 struct iwl_beacon_filter_cmd cmd = {
461 IWL_BF_CMD_CONFIG_DEFAULTS,
462 .bf_enable_beacon_filter =
463 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
464 .ba_enable_beacon_abort =
465 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
466 };
467
468 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
469 if (mvmvif->bf_data.bf_enabled)
470 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
471 else
472 cmd.bf_enable_beacon_filter = 0;
473
474 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
475 le32_to_cpu(cmd.bf_energy_delta));
476 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
477 le32_to_cpu(cmd.bf_roaming_energy_delta));
478 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
479 le32_to_cpu(cmd.bf_roaming_state));
480 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
481 le32_to_cpu(cmd.bf_temp_threshold));
482 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
483 le32_to_cpu(cmd.bf_temp_fast_filter));
484 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
485 le32_to_cpu(cmd.bf_temp_slow_filter));
486 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
487 le32_to_cpu(cmd.bf_enable_beacon_filter));
488 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
489 le32_to_cpu(cmd.bf_debug_flag));
490 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
491 le32_to_cpu(cmd.bf_escape_timer));
492 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
493 le32_to_cpu(cmd.ba_escape_timer));
494 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
495 le32_to_cpu(cmd.ba_enable_beacon_abort));
496
497 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
498 }
499
500 static inline char *iwl_dbgfs_is_match(char *name, char *buf)
501 {
502 int len = strlen(name);
503
504 return !strncmp(name, buf, len) ? buf + len : NULL;
505 }
506
507 static ssize_t iwl_dbgfs_tof_enable_write(struct ieee80211_vif *vif,
508 char *buf,
509 size_t count, loff_t *ppos)
510 {
511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
512 struct iwl_mvm *mvm = mvmvif->mvm;
513 u32 value;
514 int ret = -EINVAL;
515 char *data;
516
517 mutex_lock(&mvm->mutex);
518
519 data = iwl_dbgfs_is_match("tof_disabled=", buf);
520 if (data) {
521 ret = kstrtou32(data, 10, &value);
522 if (ret == 0)
523 mvm->tof_data.tof_cfg.tof_disabled = value;
524 goto out;
525 }
526
527 data = iwl_dbgfs_is_match("one_sided_disabled=", buf);
528 if (data) {
529 ret = kstrtou32(data, 10, &value);
530 if (ret == 0)
531 mvm->tof_data.tof_cfg.one_sided_disabled = value;
532 goto out;
533 }
534
535 data = iwl_dbgfs_is_match("is_debug_mode=", buf);
536 if (data) {
537 ret = kstrtou32(data, 10, &value);
538 if (ret == 0)
539 mvm->tof_data.tof_cfg.is_debug_mode = value;
540 goto out;
541 }
542
543 data = iwl_dbgfs_is_match("is_buf=", buf);
544 if (data) {
545 ret = kstrtou32(data, 10, &value);
546 if (ret == 0)
547 mvm->tof_data.tof_cfg.is_buf_required = value;
548 goto out;
549 }
550
551 data = iwl_dbgfs_is_match("send_tof_cfg=", buf);
552 if (data) {
553 ret = kstrtou32(data, 10, &value);
554 if (ret == 0 && value) {
555 ret = iwl_mvm_tof_config_cmd(mvm);
556 goto out;
557 }
558 }
559
560 out:
561 mutex_unlock(&mvm->mutex);
562
563 return ret ?: count;
564 }
565
566 static ssize_t iwl_dbgfs_tof_enable_read(struct file *file,
567 char __user *user_buf,
568 size_t count, loff_t *ppos)
569 {
570 struct ieee80211_vif *vif = file->private_data;
571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
572 struct iwl_mvm *mvm = mvmvif->mvm;
573 char buf[256];
574 int pos = 0;
575 const size_t bufsz = sizeof(buf);
576 struct iwl_tof_config_cmd *cmd;
577
578 cmd = &mvm->tof_data.tof_cfg;
579
580 mutex_lock(&mvm->mutex);
581
582 pos += scnprintf(buf + pos, bufsz - pos, "tof_disabled = %d\n",
583 cmd->tof_disabled);
584 pos += scnprintf(buf + pos, bufsz - pos, "one_sided_disabled = %d\n",
585 cmd->one_sided_disabled);
586 pos += scnprintf(buf + pos, bufsz - pos, "is_debug_mode = %d\n",
587 cmd->is_debug_mode);
588 pos += scnprintf(buf + pos, bufsz - pos, "is_buf_required = %d\n",
589 cmd->is_buf_required);
590
591 mutex_unlock(&mvm->mutex);
592
593 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
594 }
595
596 static ssize_t iwl_dbgfs_tof_responder_params_write(struct ieee80211_vif *vif,
597 char *buf,
598 size_t count, loff_t *ppos)
599 {
600 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
601 struct iwl_mvm *mvm = mvmvif->mvm;
602 u32 value;
603 int ret = 0;
604 char *data;
605
606 mutex_lock(&mvm->mutex);
607
608 data = iwl_dbgfs_is_match("burst_period=", buf);
609 if (data) {
610 ret = kstrtou32(data, 10, &value);
611 if (!ret)
612 mvm->tof_data.responder_cfg.burst_period =
613 cpu_to_le16(value);
614 goto out;
615 }
616
617 data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
618 if (data) {
619 ret = kstrtou32(data, 10, &value);
620 if (ret == 0)
621 mvm->tof_data.responder_cfg.min_delta_ftm = value;
622 goto out;
623 }
624
625 data = iwl_dbgfs_is_match("burst_duration=", buf);
626 if (data) {
627 ret = kstrtou32(data, 10, &value);
628 if (ret == 0)
629 mvm->tof_data.responder_cfg.burst_duration = value;
630 goto out;
631 }
632
633 data = iwl_dbgfs_is_match("num_of_burst_exp=", buf);
634 if (data) {
635 ret = kstrtou32(data, 10, &value);
636 if (ret == 0)
637 mvm->tof_data.responder_cfg.num_of_burst_exp = value;
638 goto out;
639 }
640
641 data = iwl_dbgfs_is_match("abort_responder=", buf);
642 if (data) {
643 ret = kstrtou32(data, 10, &value);
644 if (ret == 0)
645 mvm->tof_data.responder_cfg.abort_responder = value;
646 goto out;
647 }
648
649 data = iwl_dbgfs_is_match("get_ch_est=", buf);
650 if (data) {
651 ret = kstrtou32(data, 10, &value);
652 if (ret == 0)
653 mvm->tof_data.responder_cfg.get_ch_est = value;
654 goto out;
655 }
656
657 data = iwl_dbgfs_is_match("recv_sta_req_params=", buf);
658 if (data) {
659 ret = kstrtou32(data, 10, &value);
660 if (ret == 0)
661 mvm->tof_data.responder_cfg.recv_sta_req_params = value;
662 goto out;
663 }
664
665 data = iwl_dbgfs_is_match("channel_num=", buf);
666 if (data) {
667 ret = kstrtou32(data, 10, &value);
668 if (ret == 0)
669 mvm->tof_data.responder_cfg.channel_num = value;
670 goto out;
671 }
672
673 data = iwl_dbgfs_is_match("bandwidth=", buf);
674 if (data) {
675 ret = kstrtou32(data, 10, &value);
676 if (ret == 0)
677 mvm->tof_data.responder_cfg.bandwidth = value;
678 goto out;
679 }
680
681 data = iwl_dbgfs_is_match("rate=", buf);
682 if (data) {
683 ret = kstrtou32(data, 10, &value);
684 if (ret == 0)
685 mvm->tof_data.responder_cfg.rate = value;
686 goto out;
687 }
688
689 data = iwl_dbgfs_is_match("bssid=", buf);
690 if (data) {
691 u8 *mac = mvm->tof_data.responder_cfg.bssid;
692
693 if (!mac_pton(data, mac)) {
694 ret = -EINVAL;
695 goto out;
696 }
697 }
698
699 data = iwl_dbgfs_is_match("tsf_timer_offset_msecs=", buf);
700 if (data) {
701 ret = kstrtou32(data, 10, &value);
702 if (ret == 0)
703 mvm->tof_data.responder_cfg.tsf_timer_offset_msecs =
704 cpu_to_le16(value);
705 goto out;
706 }
707
708 data = iwl_dbgfs_is_match("toa_offset=", buf);
709 if (data) {
710 ret = kstrtou32(data, 10, &value);
711 if (ret == 0)
712 mvm->tof_data.responder_cfg.toa_offset =
713 cpu_to_le16(value);
714 goto out;
715 }
716
717 data = iwl_dbgfs_is_match("center_freq=", buf);
718 if (data) {
719 struct iwl_tof_responder_config_cmd *cmd =
720 &mvm->tof_data.responder_cfg;
721
722 ret = kstrtou32(data, 10, &value);
723 if (ret == 0 && value) {
724 enum nl80211_band band = (cmd->channel_num <= 14) ?
725 NL80211_BAND_2GHZ :
726 NL80211_BAND_5GHZ;
727 struct ieee80211_channel chn = {
728 .band = band,
729 .center_freq = ieee80211_channel_to_frequency(
730 cmd->channel_num, band),
731 };
732 struct cfg80211_chan_def chandef = {
733 .chan = &chn,
734 .center_freq1 =
735 ieee80211_channel_to_frequency(value,
736 band),
737 };
738
739 cmd->ctrl_ch_position = iwl_mvm_get_ctrl_pos(&chandef);
740 }
741 goto out;
742 }
743
744 data = iwl_dbgfs_is_match("ftm_per_burst=", buf);
745 if (data) {
746 ret = kstrtou32(data, 10, &value);
747 if (ret == 0)
748 mvm->tof_data.responder_cfg.ftm_per_burst = value;
749 goto out;
750 }
751
752 data = iwl_dbgfs_is_match("ftm_resp_ts_avail=", buf);
753 if (data) {
754 ret = kstrtou32(data, 10, &value);
755 if (ret == 0)
756 mvm->tof_data.responder_cfg.ftm_resp_ts_avail = value;
757 goto out;
758 }
759
760 data = iwl_dbgfs_is_match("asap_mode=", buf);
761 if (data) {
762 ret = kstrtou32(data, 10, &value);
763 if (ret == 0)
764 mvm->tof_data.responder_cfg.asap_mode = value;
765 goto out;
766 }
767
768 data = iwl_dbgfs_is_match("send_responder_cfg=", buf);
769 if (data) {
770 ret = kstrtou32(data, 10, &value);
771 if (ret == 0 && value) {
772 ret = iwl_mvm_tof_responder_cmd(mvm, vif);
773 goto out;
774 }
775 }
776
777 out:
778 mutex_unlock(&mvm->mutex);
779
780 return ret ?: count;
781 }
782
783 static ssize_t iwl_dbgfs_tof_responder_params_read(struct file *file,
784 char __user *user_buf,
785 size_t count, loff_t *ppos)
786 {
787 struct ieee80211_vif *vif = file->private_data;
788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
789 struct iwl_mvm *mvm = mvmvif->mvm;
790 char buf[256];
791 int pos = 0;
792 const size_t bufsz = sizeof(buf);
793 struct iwl_tof_responder_config_cmd *cmd;
794
795 cmd = &mvm->tof_data.responder_cfg;
796
797 mutex_lock(&mvm->mutex);
798
799 pos += scnprintf(buf + pos, bufsz - pos, "burst_period = %d\n",
800 le16_to_cpu(cmd->burst_period));
801 pos += scnprintf(buf + pos, bufsz - pos, "burst_duration = %d\n",
802 cmd->burst_duration);
803 pos += scnprintf(buf + pos, bufsz - pos, "bandwidth = %d\n",
804 cmd->bandwidth);
805 pos += scnprintf(buf + pos, bufsz - pos, "channel_num = %d\n",
806 cmd->channel_num);
807 pos += scnprintf(buf + pos, bufsz - pos, "ctrl_ch_position = 0x%x\n",
808 cmd->ctrl_ch_position);
809 pos += scnprintf(buf + pos, bufsz - pos, "bssid = %pM\n",
810 cmd->bssid);
811 pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %d\n",
812 cmd->min_delta_ftm);
813 pos += scnprintf(buf + pos, bufsz - pos, "num_of_burst_exp = %d\n",
814 cmd->num_of_burst_exp);
815 pos += scnprintf(buf + pos, bufsz - pos, "rate = %d\n", cmd->rate);
816 pos += scnprintf(buf + pos, bufsz - pos, "abort_responder = %d\n",
817 cmd->abort_responder);
818 pos += scnprintf(buf + pos, bufsz - pos, "get_ch_est = %d\n",
819 cmd->get_ch_est);
820 pos += scnprintf(buf + pos, bufsz - pos, "recv_sta_req_params = %d\n",
821 cmd->recv_sta_req_params);
822 pos += scnprintf(buf + pos, bufsz - pos, "ftm_per_burst = %d\n",
823 cmd->ftm_per_burst);
824 pos += scnprintf(buf + pos, bufsz - pos, "ftm_resp_ts_avail = %d\n",
825 cmd->ftm_resp_ts_avail);
826 pos += scnprintf(buf + pos, bufsz - pos, "asap_mode = %d\n",
827 cmd->asap_mode);
828 pos += scnprintf(buf + pos, bufsz - pos,
829 "tsf_timer_offset_msecs = %d\n",
830 le16_to_cpu(cmd->tsf_timer_offset_msecs));
831 pos += scnprintf(buf + pos, bufsz - pos, "toa_offset = %d\n",
832 le16_to_cpu(cmd->toa_offset));
833
834 mutex_unlock(&mvm->mutex);
835
836 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
837 }
838
839 static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif *vif,
840 char *buf, size_t count,
841 loff_t *ppos)
842 {
843 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
844 struct iwl_mvm *mvm = mvmvif->mvm;
845 u32 value;
846 int ret = 0;
847 char *data;
848
849 mutex_lock(&mvm->mutex);
850
851 data = iwl_dbgfs_is_match("request_id=", buf);
852 if (data) {
853 ret = kstrtou32(data, 10, &value);
854 if (ret == 0)
855 mvm->tof_data.range_req.request_id = value;
856 goto out;
857 }
858
859 data = iwl_dbgfs_is_match("initiator=", buf);
860 if (data) {
861 ret = kstrtou32(data, 10, &value);
862 if (ret == 0)
863 mvm->tof_data.range_req.initiator = value;
864 goto out;
865 }
866
867 data = iwl_dbgfs_is_match("one_sided_los_disable=", buf);
868 if (data) {
869 ret = kstrtou32(data, 10, &value);
870 if (ret == 0)
871 mvm->tof_data.range_req.one_sided_los_disable = value;
872 goto out;
873 }
874
875 data = iwl_dbgfs_is_match("req_timeout=", buf);
876 if (data) {
877 ret = kstrtou32(data, 10, &value);
878 if (ret == 0)
879 mvm->tof_data.range_req.req_timeout = value;
880 goto out;
881 }
882
883 data = iwl_dbgfs_is_match("report_policy=", buf);
884 if (data) {
885 ret = kstrtou32(data, 10, &value);
886 if (ret == 0)
887 mvm->tof_data.range_req.report_policy = value;
888 goto out;
889 }
890
891 data = iwl_dbgfs_is_match("macaddr_random=", buf);
892 if (data) {
893 ret = kstrtou32(data, 10, &value);
894 if (ret == 0)
895 mvm->tof_data.range_req.macaddr_random = value;
896 goto out;
897 }
898
899 data = iwl_dbgfs_is_match("num_of_ap=", buf);
900 if (data) {
901 ret = kstrtou32(data, 10, &value);
902 if (ret == 0)
903 mvm->tof_data.range_req.num_of_ap = value;
904 goto out;
905 }
906
907 data = iwl_dbgfs_is_match("macaddr_template=", buf);
908 if (data) {
909 u8 mac[ETH_ALEN];
910
911 if (!mac_pton(data, mac)) {
912 ret = -EINVAL;
913 goto out;
914 }
915 memcpy(mvm->tof_data.range_req.macaddr_template, mac, ETH_ALEN);
916 goto out;
917 }
918
919 data = iwl_dbgfs_is_match("macaddr_mask=", buf);
920 if (data) {
921 u8 mac[ETH_ALEN];
922
923 if (!mac_pton(data, mac)) {
924 ret = -EINVAL;
925 goto out;
926 }
927 memcpy(mvm->tof_data.range_req.macaddr_mask, mac, ETH_ALEN);
928 goto out;
929 }
930
931 data = iwl_dbgfs_is_match("ap=", buf);
932 if (data) {
933 struct iwl_tof_range_req_ap_entry ap = {};
934 int size = sizeof(struct iwl_tof_range_req_ap_entry);
935 u16 burst_period;
936 u8 *mac = ap.bssid;
937 unsigned int i;
938
939 if (sscanf(data, "%u %hhd %hhd %hhd"
940 "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx"
941 "%hhd %hhd %hd"
942 "%hhd %hhd %d"
943 "%hhx %hhd %hhd %hhd",
944 &i, &ap.channel_num, &ap.bandwidth,
945 &ap.ctrl_ch_position,
946 mac, mac + 1, mac + 2, mac + 3, mac + 4, mac + 5,
947 &ap.measure_type, &ap.num_of_bursts,
948 &burst_period,
949 &ap.samples_per_burst, &ap.retries_per_sample,
950 &ap.tsf_delta, &ap.location_req, &ap.asap_mode,
951 &ap.enable_dyn_ack, &ap.rssi) != 20) {
952 ret = -EINVAL;
953 goto out;
954 }
955 if (i >= IWL_MVM_TOF_MAX_APS) {
956 IWL_ERR(mvm, "Invalid AP index %d\n", i);
957 ret = -EINVAL;
958 goto out;
959 }
960
961 ap.burst_period = cpu_to_le16(burst_period);
962
963 memcpy(&mvm->tof_data.range_req.ap[i], &ap, size);
964 goto out;
965 }
966
967 data = iwl_dbgfs_is_match("send_range_request=", buf);
968 if (data) {
969 ret = kstrtou32(data, 10, &value);
970 if (ret == 0 && value)
971 ret = iwl_mvm_tof_range_request_cmd(mvm, vif);
972 goto out;
973 }
974
975 ret = -EINVAL;
976 out:
977 mutex_unlock(&mvm->mutex);
978 return ret ?: count;
979 }
980
981 static ssize_t iwl_dbgfs_tof_range_request_read(struct file *file,
982 char __user *user_buf,
983 size_t count, loff_t *ppos)
984 {
985 struct ieee80211_vif *vif = file->private_data;
986 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
987 struct iwl_mvm *mvm = mvmvif->mvm;
988 char buf[512];
989 int pos = 0;
990 const size_t bufsz = sizeof(buf);
991 struct iwl_tof_range_req_cmd *cmd;
992 int i;
993
994 cmd = &mvm->tof_data.range_req;
995
996 mutex_lock(&mvm->mutex);
997
998 pos += scnprintf(buf + pos, bufsz - pos, "request_id= %d\n",
999 cmd->request_id);
1000 pos += scnprintf(buf + pos, bufsz - pos, "initiator= %d\n",
1001 cmd->initiator);
1002 pos += scnprintf(buf + pos, bufsz - pos, "one_sided_los_disable = %d\n",
1003 cmd->one_sided_los_disable);
1004 pos += scnprintf(buf + pos, bufsz - pos, "req_timeout= %d\n",
1005 cmd->req_timeout);
1006 pos += scnprintf(buf + pos, bufsz - pos, "report_policy= %d\n",
1007 cmd->report_policy);
1008 pos += scnprintf(buf + pos, bufsz - pos, "macaddr_random= %d\n",
1009 cmd->macaddr_random);
1010 pos += scnprintf(buf + pos, bufsz - pos, "macaddr_template= %pM\n",
1011 cmd->macaddr_template);
1012 pos += scnprintf(buf + pos, bufsz - pos, "macaddr_mask= %pM\n",
1013 cmd->macaddr_mask);
1014 pos += scnprintf(buf + pos, bufsz - pos, "num_of_ap= %d\n",
1015 cmd->num_of_ap);
1016 for (i = 0; i < cmd->num_of_ap; i++) {
1017 struct iwl_tof_range_req_ap_entry *ap = &cmd->ap[i];
1018
1019 pos += scnprintf(buf + pos, bufsz - pos,
1020 "ap %.2d: channel_num=%hhd bw=%hhd"
1021 " control=%hhd bssid=%pM type=%hhd"
1022 " num_of_bursts=%hhd burst_period=%hd ftm=%hhd"
1023 " retries=%hhd tsf_delta=%d"
1024 " tsf_delta_direction=%hhd location_req=0x%hhx "
1025 " asap=%hhd enable=%hhd rssi=%hhd\n",
1026 i, ap->channel_num, ap->bandwidth,
1027 ap->ctrl_ch_position, ap->bssid,
1028 ap->measure_type, ap->num_of_bursts,
1029 ap->burst_period, ap->samples_per_burst,
1030 ap->retries_per_sample, ap->tsf_delta,
1031 ap->tsf_delta_direction,
1032 ap->location_req, ap->asap_mode,
1033 ap->enable_dyn_ack, ap->rssi);
1034 }
1035
1036 mutex_unlock(&mvm->mutex);
1037
1038 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1039 }
1040
1041 static ssize_t iwl_dbgfs_tof_range_req_ext_write(struct ieee80211_vif *vif,
1042 char *buf,
1043 size_t count, loff_t *ppos)
1044 {
1045 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1046 struct iwl_mvm *mvm = mvmvif->mvm;
1047 u32 value;
1048 int ret = 0;
1049 char *data;
1050
1051 mutex_lock(&mvm->mutex);
1052
1053 data = iwl_dbgfs_is_match("tsf_timer_offset_msec=", buf);
1054 if (data) {
1055 ret = kstrtou32(data, 10, &value);
1056 if (ret == 0)
1057 mvm->tof_data.range_req_ext.tsf_timer_offset_msec =
1058 cpu_to_le16(value);
1059 goto out;
1060 }
1061
1062 data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
1063 if (data) {
1064 ret = kstrtou32(data, 10, &value);
1065 if (ret == 0)
1066 mvm->tof_data.range_req_ext.min_delta_ftm = value;
1067 goto out;
1068 }
1069
1070 data = iwl_dbgfs_is_match("ftm_format_and_bw20M=", buf);
1071 if (data) {
1072 ret = kstrtou32(data, 10, &value);
1073 if (ret == 0)
1074 mvm->tof_data.range_req_ext.ftm_format_and_bw20M =
1075 value;
1076 goto out;
1077 }
1078
1079 data = iwl_dbgfs_is_match("ftm_format_and_bw40M=", buf);
1080 if (data) {
1081 ret = kstrtou32(data, 10, &value);
1082 if (ret == 0)
1083 mvm->tof_data.range_req_ext.ftm_format_and_bw40M =
1084 value;
1085 goto out;
1086 }
1087
1088 data = iwl_dbgfs_is_match("ftm_format_and_bw80M=", buf);
1089 if (data) {
1090 ret = kstrtou32(data, 10, &value);
1091 if (ret == 0)
1092 mvm->tof_data.range_req_ext.ftm_format_and_bw80M =
1093 value;
1094 goto out;
1095 }
1096
1097 data = iwl_dbgfs_is_match("send_range_req_ext=", buf);
1098 if (data) {
1099 ret = kstrtou32(data, 10, &value);
1100 if (ret == 0 && value)
1101 ret = iwl_mvm_tof_range_request_ext_cmd(mvm, vif);
1102 goto out;
1103 }
1104
1105 ret = -EINVAL;
1106 out:
1107 mutex_unlock(&mvm->mutex);
1108 return ret ?: count;
1109 }
1110
1111 static ssize_t iwl_dbgfs_tof_range_req_ext_read(struct file *file,
1112 char __user *user_buf,
1113 size_t count, loff_t *ppos)
1114 {
1115 struct ieee80211_vif *vif = file->private_data;
1116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1117 struct iwl_mvm *mvm = mvmvif->mvm;
1118 char buf[256];
1119 int pos = 0;
1120 const size_t bufsz = sizeof(buf);
1121 struct iwl_tof_range_req_ext_cmd *cmd;
1122
1123 cmd = &mvm->tof_data.range_req_ext;
1124
1125 mutex_lock(&mvm->mutex);
1126
1127 pos += scnprintf(buf + pos, bufsz - pos,
1128 "tsf_timer_offset_msec = %hd\n",
1129 cmd->tsf_timer_offset_msec);
1130 pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %hhd\n",
1131 cmd->min_delta_ftm);
1132 pos += scnprintf(buf + pos, bufsz - pos,
1133 "ftm_format_and_bw20M = %hhd\n",
1134 cmd->ftm_format_and_bw20M);
1135 pos += scnprintf(buf + pos, bufsz - pos,
1136 "ftm_format_and_bw40M = %hhd\n",
1137 cmd->ftm_format_and_bw40M);
1138 pos += scnprintf(buf + pos, bufsz - pos,
1139 "ftm_format_and_bw80M = %hhd\n",
1140 cmd->ftm_format_and_bw80M);
1141
1142 mutex_unlock(&mvm->mutex);
1143 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1144 }
1145
1146 static ssize_t iwl_dbgfs_tof_range_abort_write(struct ieee80211_vif *vif,
1147 char *buf,
1148 size_t count, loff_t *ppos)
1149 {
1150 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1151 struct iwl_mvm *mvm = mvmvif->mvm;
1152 u32 value;
1153 int abort_id, ret = 0;
1154 char *data;
1155
1156 mutex_lock(&mvm->mutex);
1157
1158 data = iwl_dbgfs_is_match("abort_id=", buf);
1159 if (data) {
1160 ret = kstrtou32(data, 10, &value);
1161 if (ret == 0)
1162 mvm->tof_data.last_abort_id = value;
1163 goto out;
1164 }
1165
1166 data = iwl_dbgfs_is_match("send_range_abort=", buf);
1167 if (data) {
1168 ret = kstrtou32(data, 10, &value);
1169 if (ret == 0 && value) {
1170 abort_id = mvm->tof_data.last_abort_id;
1171 ret = iwl_mvm_tof_range_abort_cmd(mvm, abort_id);
1172 goto out;
1173 }
1174 }
1175
1176 out:
1177 mutex_unlock(&mvm->mutex);
1178 return ret ?: count;
1179 }
1180
1181 static ssize_t iwl_dbgfs_tof_range_abort_read(struct file *file,
1182 char __user *user_buf,
1183 size_t count, loff_t *ppos)
1184 {
1185 struct ieee80211_vif *vif = file->private_data;
1186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1187 struct iwl_mvm *mvm = mvmvif->mvm;
1188 char buf[32];
1189 int pos = 0;
1190 const size_t bufsz = sizeof(buf);
1191 int last_abort_id;
1192
1193 mutex_lock(&mvm->mutex);
1194 last_abort_id = mvm->tof_data.last_abort_id;
1195 mutex_unlock(&mvm->mutex);
1196
1197 pos += scnprintf(buf + pos, bufsz - pos, "last_abort_id = %d\n",
1198 last_abort_id);
1199 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1200 }
1201
1202 static ssize_t iwl_dbgfs_tof_range_response_read(struct file *file,
1203 char __user *user_buf,
1204 size_t count, loff_t *ppos)
1205 {
1206 struct ieee80211_vif *vif = file->private_data;
1207 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1208 struct iwl_mvm *mvm = mvmvif->mvm;
1209 char *buf;
1210 int pos = 0;
1211 const size_t bufsz = sizeof(struct iwl_tof_range_rsp_ntfy) + 256;
1212 struct iwl_tof_range_rsp_ntfy *cmd;
1213 int i, ret;
1214
1215 buf = kzalloc(bufsz, GFP_KERNEL);
1216 if (!buf)
1217 return -ENOMEM;
1218
1219 mutex_lock(&mvm->mutex);
1220 cmd = &mvm->tof_data.range_resp;
1221
1222 pos += scnprintf(buf + pos, bufsz - pos, "request_id = %d\n",
1223 cmd->request_id);
1224 pos += scnprintf(buf + pos, bufsz - pos, "status = %d\n",
1225 cmd->request_status);
1226 pos += scnprintf(buf + pos, bufsz - pos, "last_in_batch = %d\n",
1227 cmd->last_in_batch);
1228 pos += scnprintf(buf + pos, bufsz - pos, "num_of_aps = %d\n",
1229 cmd->num_of_aps);
1230 for (i = 0; i < cmd->num_of_aps; i++) {
1231 struct iwl_tof_range_rsp_ap_entry_ntfy *ap = &cmd->ap[i];
1232
1233 pos += scnprintf(buf + pos, bufsz - pos,
1234 "ap %.2d: bssid=%pM status=%hhd bw=%hhd"
1235 " rtt=%d rtt_var=%d rtt_spread=%d"
1236 " rssi=%hhd rssi_spread=%hhd"
1237 " range=%d range_var=%d"
1238 " time_stamp=%d\n",
1239 i, ap->bssid, ap->measure_status,
1240 ap->measure_bw,
1241 ap->rtt, ap->rtt_variance, ap->rtt_spread,
1242 ap->rssi, ap->rssi_spread, ap->range,
1243 ap->range_variance, ap->timestamp);
1244 }
1245 mutex_unlock(&mvm->mutex);
1246
1247 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1248 kfree(buf);
1249 return ret;
1250 }
1251
1252 static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
1253 size_t count, loff_t *ppos)
1254 {
1255 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1256 struct iwl_mvm *mvm = mvmvif->mvm;
1257 bool prev;
1258 u8 value;
1259 int ret;
1260
1261 ret = kstrtou8(buf, 0, &value);
1262 if (ret)
1263 return ret;
1264 if (value > 1)
1265 return -EINVAL;
1266
1267 mutex_lock(&mvm->mutex);
1268 prev = iwl_mvm_vif_low_latency(mvmvif);
1269 mvmvif->low_latency_dbgfs = value;
1270 iwl_mvm_update_low_latency(mvm, vif, prev);
1271 mutex_unlock(&mvm->mutex);
1272
1273 return count;
1274 }
1275
1276 static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
1277 char __user *user_buf,
1278 size_t count, loff_t *ppos)
1279 {
1280 struct ieee80211_vif *vif = file->private_data;
1281 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1282 char buf[30] = {};
1283 int len;
1284
1285 len = snprintf(buf, sizeof(buf) - 1,
1286 "traffic=%d\ndbgfs=%d\nvcmd=%d\n",
1287 mvmvif->low_latency_traffic,
1288 mvmvif->low_latency_dbgfs,
1289 mvmvif->low_latency_vcmd);
1290 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1291 }
1292
1293 static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,
1294 char __user *user_buf,
1295 size_t count, loff_t *ppos)
1296 {
1297 struct ieee80211_vif *vif = file->private_data;
1298 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1299 char buf[20];
1300 int len;
1301
1302 len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_bssid);
1303 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1304 }
1305
1306 static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,
1307 char *buf, size_t count,
1308 loff_t *ppos)
1309 {
1310 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1311 struct iwl_mvm *mvm = mvmvif->mvm;
1312 bool ret;
1313
1314 mutex_lock(&mvm->mutex);
1315 ret = mac_pton(buf, mvmvif->uapsd_misbehaving_bssid);
1316 mutex_unlock(&mvm->mutex);
1317
1318 return ret ? count : -EINVAL;
1319 }
1320
1321 static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
1322 size_t count, loff_t *ppos)
1323 {
1324 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1325 struct iwl_mvm *mvm = mvmvif->mvm;
1326 struct ieee80211_chanctx_conf *chanctx_conf;
1327 struct iwl_mvm_phy_ctxt *phy_ctxt;
1328 u16 value;
1329 int ret;
1330
1331 ret = kstrtou16(buf, 0, &value);
1332 if (ret)
1333 return ret;
1334
1335 mutex_lock(&mvm->mutex);
1336 rcu_read_lock();
1337
1338 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1339 /* make sure the channel context is assigned */
1340 if (!chanctx_conf) {
1341 rcu_read_unlock();
1342 mutex_unlock(&mvm->mutex);
1343 return -EINVAL;
1344 }
1345
1346 phy_ctxt = &mvm->phy_ctxts[*(u16 *)chanctx_conf->drv_priv];
1347 rcu_read_unlock();
1348
1349 mvm->dbgfs_rx_phyinfo = value;
1350
1351 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chanctx_conf->min_def,
1352 chanctx_conf->rx_chains_static,
1353 chanctx_conf->rx_chains_dynamic);
1354 mutex_unlock(&mvm->mutex);
1355
1356 return ret ?: count;
1357 }
1358
1359 static ssize_t iwl_dbgfs_rx_phyinfo_read(struct file *file,
1360 char __user *user_buf,
1361 size_t count, loff_t *ppos)
1362 {
1363 struct ieee80211_vif *vif = file->private_data;
1364 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1365 char buf[8];
1366
1367 snprintf(buf, sizeof(buf), "0x%04x\n", mvmvif->mvm->dbgfs_rx_phyinfo);
1368
1369 return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
1370 }
1371
1372 static void iwl_dbgfs_quota_check(void *data, u8 *mac,
1373 struct ieee80211_vif *vif)
1374 {
1375 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1376 int *ret = data;
1377
1378 if (mvmvif->dbgfs_quota_min)
1379 *ret = -EINVAL;
1380 }
1381
1382 static ssize_t iwl_dbgfs_quota_min_write(struct ieee80211_vif *vif, char *buf,
1383 size_t count, loff_t *ppos)
1384 {
1385 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1386 struct iwl_mvm *mvm = mvmvif->mvm;
1387 u16 value;
1388 int ret;
1389
1390 ret = kstrtou16(buf, 0, &value);
1391 if (ret)
1392 return ret;
1393
1394 if (value > 95)
1395 return -EINVAL;
1396
1397 mutex_lock(&mvm->mutex);
1398
1399 mvmvif->dbgfs_quota_min = 0;
1400 ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1401 iwl_dbgfs_quota_check, &ret);
1402 if (ret == 0) {
1403 mvmvif->dbgfs_quota_min = value;
1404 iwl_mvm_update_quotas(mvm, false, NULL);
1405 }
1406 mutex_unlock(&mvm->mutex);
1407
1408 return ret ?: count;
1409 }
1410
1411 static ssize_t iwl_dbgfs_quota_min_read(struct file *file,
1412 char __user *user_buf,
1413 size_t count, loff_t *ppos)
1414 {
1415 struct ieee80211_vif *vif = file->private_data;
1416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1417 char buf[10];
1418 int len;
1419
1420 len = snprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);
1421
1422 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1423 }
1424
1425 static const char * const chanwidths[] = {
1426 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1427 [NL80211_CHAN_WIDTH_20] = "ht20",
1428 [NL80211_CHAN_WIDTH_40] = "ht40",
1429 [NL80211_CHAN_WIDTH_80] = "vht80",
1430 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1431 [NL80211_CHAN_WIDTH_160] = "vht160",
1432 };
1433
1434 static bool iwl_mvm_lqm_notif_wait(struct iwl_notif_wait_data *notif_wait,
1435 struct iwl_rx_packet *pkt, void *data)
1436 {
1437 struct ieee80211_vif *vif = data;
1438 struct iwl_mvm *mvm =
1439 container_of(notif_wait, struct iwl_mvm, notif_wait);
1440 struct iwl_link_qual_msrmnt_notif *report = (void *)pkt->data;
1441 u32 num_of_stations = le32_to_cpu(report->number_of_stations);
1442 int i;
1443
1444 IWL_INFO(mvm, "LQM report:\n");
1445 IWL_INFO(mvm, "\tstatus: %d\n", report->status);
1446 IWL_INFO(mvm, "\tmacID: %d\n", le32_to_cpu(report->mac_id));
1447 IWL_INFO(mvm, "\ttx_frame_dropped: %d\n",
1448 le32_to_cpu(report->tx_frame_dropped));
1449 IWL_INFO(mvm, "\ttime_in_measurement_window: %d us\n",
1450 le32_to_cpu(report->time_in_measurement_window));
1451 IWL_INFO(mvm, "\ttotal_air_time_other_stations: %d\n",
1452 le32_to_cpu(report->total_air_time_other_stations));
1453 IWL_INFO(mvm, "\tchannel_freq: %d\n",
1454 vif->bss_conf.chandef.center_freq1);
1455 IWL_INFO(mvm, "\tchannel_width: %s\n",
1456 chanwidths[vif->bss_conf.chandef.width]);
1457 IWL_INFO(mvm, "\tnumber_of_stations: %d\n", num_of_stations);
1458 for (i = 0; i < num_of_stations; i++)
1459 IWL_INFO(mvm, "\t\tsta[%d]: %d\n", i,
1460 report->frequent_stations_air_time[i]);
1461
1462 return true;
1463 }
1464
1465 static ssize_t iwl_dbgfs_lqm_send_cmd_write(struct ieee80211_vif *vif,
1466 char *buf, size_t count,
1467 loff_t *ppos)
1468 {
1469 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1470 struct iwl_mvm *mvm = mvmvif->mvm;
1471 struct iwl_notification_wait wait_lqm_notif;
1472 static u16 lqm_notif[] = {
1473 WIDE_ID(MAC_CONF_GROUP,
1474 LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF)
1475 };
1476 int err;
1477 u32 duration;
1478 u32 timeout;
1479
1480 if (sscanf(buf, "%d,%d", &duration, &timeout) != 2)
1481 return -EINVAL;
1482
1483 iwl_init_notification_wait(&mvm->notif_wait, &wait_lqm_notif,
1484 lqm_notif, ARRAY_SIZE(lqm_notif),
1485 iwl_mvm_lqm_notif_wait, vif);
1486 mutex_lock(&mvm->mutex);
1487 err = iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_START_MEASUREMENT,
1488 duration, timeout);
1489 mutex_unlock(&mvm->mutex);
1490
1491 if (err) {
1492 IWL_ERR(mvm, "Failed to send lqm cmdf(err=%d)\n", err);
1493 iwl_remove_notification(&mvm->notif_wait, &wait_lqm_notif);
1494 return err;
1495 }
1496
1497 /* wait for 2 * timeout (safety guard) and convert to jiffies*/
1498 timeout = msecs_to_jiffies((timeout * 2) / 1000);
1499
1500 err = iwl_wait_notification(&mvm->notif_wait, &wait_lqm_notif,
1501 timeout);
1502 if (err)
1503 IWL_ERR(mvm, "Getting lqm notif timed out\n");
1504
1505 return count;
1506 }
1507
1508 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1509 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
1510 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1511 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
1512 #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
1513 if (!debugfs_create_file(#name, mode, parent, vif, \
1514 &iwl_dbgfs_##name##_ops)) \
1515 goto err; \
1516 } while (0)
1517
1518 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
1519 MVM_DEBUGFS_READ_FILE_OPS(tx_pwr_lmt);
1520 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
1521 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
1522 MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
1523 MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
1524 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);
1525 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_enable, 32);
1526 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_request, 512);
1527 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_req_ext, 32);
1528 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_abort, 32);
1529 MVM_DEBUGFS_READ_FILE_OPS(tof_range_response);
1530 MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_responder_params, 32);
1531 MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);
1532 MVM_DEBUGFS_WRITE_FILE_OPS(lqm_send_cmd, 64);
1533
1534 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1535 {
1536 struct dentry *dbgfs_dir = vif->debugfs_dir;
1537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1538 char buf[100];
1539
1540 /*
1541 * Check if debugfs directory already exist before creating it.
1542 * This may happen when, for example, resetting hw or suspend-resume
1543 */
1544 if (!dbgfs_dir || mvmvif->dbgfs_dir)
1545 return;
1546
1547 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
1548
1549 if (!mvmvif->dbgfs_dir) {
1550 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
1551 dbgfs_dir->d_name.name);
1552 return;
1553 }
1554
1555 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
1556 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
1557 (vif->type == NL80211_IFTYPE_STATION && vif->p2p &&
1558 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)))
1559 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
1560 S_IRUSR);
1561
1562 MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, S_IRUSR);
1563 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
1564 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
1565 S_IRUSR | S_IWUSR);
1566 MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir,
1567 S_IRUSR | S_IWUSR);
1568 MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir,
1569 S_IRUSR | S_IWUSR);
1570 MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir,
1571 S_IRUSR | S_IWUSR);
1572 MVM_DEBUGFS_ADD_FILE_VIF(lqm_send_cmd, mvmvif->dbgfs_dir, S_IWUSR);
1573
1574 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1575 mvmvif == mvm->bf_allowed_vif)
1576 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
1577 S_IRUSR | S_IWUSR);
1578
1579 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TOF_SUPPORT) &&
1580 !vif->p2p && (vif->type != NL80211_IFTYPE_P2P_DEVICE)) {
1581 if (IWL_MVM_TOF_IS_RESPONDER && vif->type == NL80211_IFTYPE_AP)
1582 MVM_DEBUGFS_ADD_FILE_VIF(tof_responder_params,
1583 mvmvif->dbgfs_dir,
1584 S_IRUSR | S_IWUSR);
1585
1586 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_request, mvmvif->dbgfs_dir,
1587 S_IRUSR | S_IWUSR);
1588 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_req_ext, mvmvif->dbgfs_dir,
1589 S_IRUSR | S_IWUSR);
1590 MVM_DEBUGFS_ADD_FILE_VIF(tof_enable, mvmvif->dbgfs_dir,
1591 S_IRUSR | S_IWUSR);
1592 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_abort, mvmvif->dbgfs_dir,
1593 S_IRUSR | S_IWUSR);
1594 MVM_DEBUGFS_ADD_FILE_VIF(tof_range_response, mvmvif->dbgfs_dir,
1595 S_IRUSR);
1596 }
1597
1598 /*
1599 * Create symlink for convenience pointing to interface specific
1600 * debugfs entries for the driver. For example, under
1601 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1602 * find
1603 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1604 */
1605 snprintf(buf, 100, "../../../%s/%s/%s/%s",
1606 dbgfs_dir->d_parent->d_parent->d_name.name,
1607 dbgfs_dir->d_parent->d_name.name,
1608 dbgfs_dir->d_name.name,
1609 mvmvif->dbgfs_dir->d_name.name);
1610
1611 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1612 mvm->debugfs_dir, buf);
1613 if (!mvmvif->dbgfs_slink)
1614 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
1615 dbgfs_dir->d_name.name);
1616 return;
1617 err:
1618 IWL_ERR(mvm, "Can't create debugfs entity\n");
1619 }
1620
1621 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1622 {
1623 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1624
1625 debugfs_remove(mvmvif->dbgfs_slink);
1626 mvmvif->dbgfs_slink = NULL;
1627
1628 debugfs_remove_recursive(mvmvif->dbgfs_dir);
1629 mvmvif->dbgfs_dir = NULL;
1630 }
Linux kernel - Deliverables
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