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iwlwifi: mvm: disable reduced Tx power when not applicable
[mirror_ubuntu-hirsute-kernel.git] / drivers / net / wireless / iwlwifi / mvm / debugfs-vif.c
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820a1a50
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 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
820a1a50
JB		 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
25 * in the file called COPYING.
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 *
51368bf7 33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
820a1a50
JB		 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 "debugfs.h"
65
e45a941d
AB		 66static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
67 struct ieee80211_vif *vif,
68 enum iwl_dbgfs_pm_mask param, int val)
69{
70 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
71 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
72
73 dbgfs_pm->mask |= param;
74
75 switch (param) {
76 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
77 struct ieee80211_hw *hw = mvm->hw;
78 int dtimper = hw->conf.ps_dtim_period ?: 1;
79 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
80
81 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
82 if (val * MSEC_PER_SEC < 3 * dtimper_msec)
83 IWL_WARN(mvm,
84 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
85 val * MSEC_PER_SEC, 3 * dtimper_msec);
86 dbgfs_pm->keep_alive_seconds = val;
87 break;
88 }
89 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
90 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
91 val ? "enabled" : "disabled");
92 dbgfs_pm->skip_over_dtim = val;
93 break;
94 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
95 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
96 dbgfs_pm->skip_dtim_periods = val;
97 break;
98 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
99 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
100 dbgfs_pm->rx_data_timeout = val;
101 break;
102 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
103 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
104 dbgfs_pm->tx_data_timeout = val;
105 break;
e45a941d
AB		 106 case MVM_DEBUGFS_PM_LPRX_ENA:
107 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
108 dbgfs_pm->lprx_ena = val;
109 break;
110 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
111 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
112 dbgfs_pm->lprx_rssi_threshold = val;
113 break;
114 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
115 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
116 dbgfs_pm->snooze_ena = val;
117 break;
118 case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
119 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
120 dbgfs_pm->uapsd_misbehaving = val;
121 break;
122 }
123}
124
125static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
126 size_t count, loff_t *ppos)
127{
128 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
129 struct iwl_mvm *mvm = mvmvif->mvm;
130 enum iwl_dbgfs_pm_mask param;
131 int val, ret;
132
133 if (!strncmp("keep_alive=", buf, 11)) {
134 if (sscanf(buf + 11, "%d", &val) != 1)
135 return -EINVAL;
136 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
137 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
138 if (sscanf(buf + 15, "%d", &val) != 1)
139 return -EINVAL;
140 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
141 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
142 if (sscanf(buf + 18, "%d", &val) != 1)
143 return -EINVAL;
144 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
145 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
146 if (sscanf(buf + 16, "%d", &val) != 1)
147 return -EINVAL;
148 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
149 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
150 if (sscanf(buf + 16, "%d", &val) != 1)
151 return -EINVAL;
152 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
e45a941d
AB		 153 } else if (!strncmp("lprx=", buf, 5)) {
154 if (sscanf(buf + 5, "%d", &val) != 1)
155 return -EINVAL;
156 param = MVM_DEBUGFS_PM_LPRX_ENA;
157 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
158 if (sscanf(buf + 20, "%d", &val) != 1)
159 return -EINVAL;
160 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
161 POWER_LPRX_RSSI_THRESHOLD_MIN)
162 return -EINVAL;
163 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
164 } else if (!strncmp("snooze_enable=", buf, 14)) {
165 if (sscanf(buf + 14, "%d", &val) != 1)
166 return -EINVAL;
167 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
168 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
169 if (sscanf(buf + 18, "%d", &val) != 1)
170 return -EINVAL;
171 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
172 } else {
173 return -EINVAL;
174 }
175
176 mutex_lock(&mvm->mutex);
177 iwl_dbgfs_update_pm(mvm, vif, param, val);
e5e7aa8e 178 ret = iwl_mvm_power_update_mac(mvm, vif);
e45a941d
AB		 179 mutex_unlock(&mvm->mutex);
180
181 return ret ?: count;
182}
183
184static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
185 char __user *user_buf,
186 size_t count, loff_t *ppos)
187{
188 struct ieee80211_vif *vif = file->private_data;
189 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
190 struct iwl_mvm *mvm = mvmvif->mvm;
191 char buf[512];
192 int bufsz = sizeof(buf);
193 int pos;
194
c1cb92fc 195 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
e45a941d
AB		 196
197 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
198}
199
820a1a50
JB		 200static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
201 char __user *user_buf,
202 size_t count, loff_t *ppos)
203{
204 struct ieee80211_vif *vif = file->private_data;
205 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
7f09d704 206 struct iwl_mvm *mvm = mvmvif->mvm;
820a1a50
JB		 207 u8 ap_sta_id;
208 struct ieee80211_chanctx_conf *chanctx_conf;
209 char buf[512];
210 int bufsz = sizeof(buf);
211 int pos = 0;
212 int i;
213
214 mutex_lock(&mvm->mutex);
215
216 ap_sta_id = mvmvif->ap_sta_id;
217
2284b951
EG		 218 switch (ieee80211_vif_type_p2p(vif)) {
219 case NL80211_IFTYPE_ADHOC:
220 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
221 break;
222 case NL80211_IFTYPE_STATION:
223 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
224 break;
225 case NL80211_IFTYPE_AP:
226 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
227 break;
228 case NL80211_IFTYPE_P2P_CLIENT:
229 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
230 break;
231 case NL80211_IFTYPE_P2P_GO:
232 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
233 break;
234 case NL80211_IFTYPE_P2P_DEVICE:
235 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
236 break;
237 default:
238 break;
239 }
240
820a1a50
JB		 241 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
242 mvmvif->id, mvmvif->color);
243 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
244 vif->bss_conf.bssid);
245 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
246 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
247 pos += scnprintf(buf+pos, bufsz-pos,
248 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
249 i, mvmvif->queue_params[i].txop,
250 mvmvif->queue_params[i].cw_min,
251 mvmvif->queue_params[i].cw_max,
252 mvmvif->queue_params[i].aifs,
253 mvmvif->queue_params[i].uapsd);
254
255 if (vif->type == NL80211_IFTYPE_STATION &&
256 ap_sta_id != IWL_MVM_STATION_COUNT) {
257 struct ieee80211_sta *sta;
820a1a50
JB		 258
259 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
260 lockdep_is_held(&mvm->mutex));
1ddbbb0c
JB		 261 if (!IS_ERR_OR_NULL(sta)) {
262 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
263
264 pos += scnprintf(buf+pos, bufsz-pos,
32a65c34 265 "ap_sta_id %d - reduced Tx power %d force %d\n",
1ddbbb0c 266 ap_sta_id,
32a65c34
EG		 267 mvm_sta->bt_reduced_txpower,
268 mvm_sta->bt_reduced_txpower_dbg);
1ddbbb0c 269 }
820a1a50
JB		 270 }
271
272 rcu_read_lock();
273 chanctx_conf = rcu_dereference(vif->chanctx_conf);
274 if (chanctx_conf)
275 pos += scnprintf(buf+pos, bufsz-pos,
276 "idle rx chains %d, active rx chains: %d\n",
277 chanctx_conf->rx_chains_static,
278 chanctx_conf->rx_chains_dynamic);
279 rcu_read_unlock();
280
281 mutex_unlock(&mvm->mutex);
282
283 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
284}
285
32a65c34
EG		 286static ssize_t iwl_dbgfs_reduced_txp_write(struct ieee80211_vif *vif,
287 char *buf, size_t count,
288 loff_t *ppos)
289{
290 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
291 struct iwl_mvm *mvm = mvmvif->mvm;
292 struct iwl_mvm_sta *mvmsta;
293 bool reduced_tx_power;
294 int ret;
295
296 if (mvmvif->ap_sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
297 return -ENOTCONN;
298
299 if (strtobool(buf, &reduced_tx_power) != 0)
300 return -EINVAL;
301
302 mutex_lock(&mvm->mutex);
303
304 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
f718c2df
EG		 305 if (IS_ERR_OR_NULL(mvmsta)) {
306 mutex_unlock(&mvm->mutex);
307 return -ENOTCONN;
308 }
309
32a65c34
EG		 310 mvmsta->bt_reduced_txpower_dbg = false;
311 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
312 reduced_tx_power);
313 if (!ret)
314 mvmsta->bt_reduced_txpower_dbg = true;
315
316 mutex_unlock(&mvm->mutex);
317
318 return ret ? : count;
319}
320
e45a941d
AB		 321static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
322 enum iwl_dbgfs_bf_mask param, int value)
323{
324 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
325 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
326
327 dbgfs_bf->mask |= param;
328
329 switch (param) {
330 case MVM_DEBUGFS_BF_ENERGY_DELTA:
331 dbgfs_bf->bf_energy_delta = value;
332 break;
333 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
334 dbgfs_bf->bf_roaming_energy_delta = value;
335 break;
336 case MVM_DEBUGFS_BF_ROAMING_STATE:
337 dbgfs_bf->bf_roaming_state = value;
338 break;
339 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
340 dbgfs_bf->bf_temp_threshold = value;
341 break;
342 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
343 dbgfs_bf->bf_temp_fast_filter = value;
344 break;
345 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
346 dbgfs_bf->bf_temp_slow_filter = value;
347 break;
348 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
349 dbgfs_bf->bf_enable_beacon_filter = value;
350 break;
351 case MVM_DEBUGFS_BF_DEBUG_FLAG:
352 dbgfs_bf->bf_debug_flag = value;
353 break;
354 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
355 dbgfs_bf->bf_escape_timer = value;
356 break;
357 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
358 dbgfs_bf->ba_enable_beacon_abort = value;
359 break;
360 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
361 dbgfs_bf->ba_escape_timer = value;
362 break;
363 }
364}
365
366static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
367 size_t count, loff_t *ppos)
368{
369 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
370 struct iwl_mvm *mvm = mvmvif->mvm;
371 enum iwl_dbgfs_bf_mask param;
372 int value, ret = 0;
373
374 if (!strncmp("bf_energy_delta=", buf, 16)) {
375 if (sscanf(buf+16, "%d", &value) != 1)
376 return -EINVAL;
377 if (value < IWL_BF_ENERGY_DELTA_MIN ||
378 value > IWL_BF_ENERGY_DELTA_MAX)
379 return -EINVAL;
380 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
381 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
382 if (sscanf(buf+24, "%d", &value) != 1)
383 return -EINVAL;
384 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
385 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
386 return -EINVAL;
387 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
388 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
389 if (sscanf(buf+17, "%d", &value) != 1)
390 return -EINVAL;
391 if (value < IWL_BF_ROAMING_STATE_MIN ||
392 value > IWL_BF_ROAMING_STATE_MAX)
393 return -EINVAL;
394 param = MVM_DEBUGFS_BF_ROAMING_STATE;
395 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
396 if (sscanf(buf+18, "%d", &value) != 1)
397 return -EINVAL;
398 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
399 value > IWL_BF_TEMP_THRESHOLD_MAX)
400 return -EINVAL;
401 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
402 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
403 if (sscanf(buf+20, "%d", &value) != 1)
404 return -EINVAL;
405 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
406 value > IWL_BF_TEMP_FAST_FILTER_MAX)
407 return -EINVAL;
408 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
409 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
410 if (sscanf(buf+20, "%d", &value) != 1)
411 return -EINVAL;
412 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
413 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
414 return -EINVAL;
415 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
416 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
417 if (sscanf(buf+24, "%d", &value) != 1)
418 return -EINVAL;
419 if (value < 0 || value > 1)
420 return -EINVAL;
421 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
422 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
423 if (sscanf(buf+14, "%d", &value) != 1)
424 return -EINVAL;
425 if (value < 0 || value > 1)
426 return -EINVAL;
427 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
428 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
429 if (sscanf(buf+16, "%d", &value) != 1)
430 return -EINVAL;
431 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
432 value > IWL_BF_ESCAPE_TIMER_MAX)
433 return -EINVAL;
434 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
435 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
436 if (sscanf(buf+16, "%d", &value) != 1)
437 return -EINVAL;
438 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
439 value > IWL_BA_ESCAPE_TIMER_MAX)
440 return -EINVAL;
441 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
442 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
443 if (sscanf(buf+23, "%d", &value) != 1)
444 return -EINVAL;
445 if (value < 0 || value > 1)
446 return -EINVAL;
447 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
448 } else {
449 return -EINVAL;
450 }
451
452 mutex_lock(&mvm->mutex);
453 iwl_dbgfs_update_bf(vif, param, value);
454 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
a1022927 455 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
e45a941d 456 else
a1022927 457 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
e45a941d
AB		 458 mutex_unlock(&mvm->mutex);
459
460 return ret ?: count;
461}
462
463static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
464 char __user *user_buf,
465 size_t count, loff_t *ppos)
466{
467 struct ieee80211_vif *vif = file->private_data;
468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
469 char buf[256];
470 int pos = 0;
471 const size_t bufsz = sizeof(buf);
472 struct iwl_beacon_filter_cmd cmd = {
473 IWL_BF_CMD_CONFIG_DEFAULTS,
474 .bf_enable_beacon_filter =
475 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
476 .ba_enable_beacon_abort =
477 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
478 };
479
480 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
481 if (mvmvif->bf_data.bf_enabled)
482 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
483 else
484 cmd.bf_enable_beacon_filter = 0;
485
486 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
487 le32_to_cpu(cmd.bf_energy_delta));
488 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
489 le32_to_cpu(cmd.bf_roaming_energy_delta));
490 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
491 le32_to_cpu(cmd.bf_roaming_state));
492 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
493 le32_to_cpu(cmd.bf_temp_threshold));
494 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
495 le32_to_cpu(cmd.bf_temp_fast_filter));
496 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
497 le32_to_cpu(cmd.bf_temp_slow_filter));
498 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
499 le32_to_cpu(cmd.bf_enable_beacon_filter));
500 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
501 le32_to_cpu(cmd.bf_debug_flag));
502 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
503 le32_to_cpu(cmd.bf_escape_timer));
504 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
505 le32_to_cpu(cmd.ba_escape_timer));
506 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
507 le32_to_cpu(cmd.ba_enable_beacon_abort));
508
509 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
510}
511
a21d7bcb
JB		 512static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
513 size_t count, loff_t *ppos)
514{
515 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
516 struct iwl_mvm *mvm = mvmvif->mvm;
517 u8 value;
518 int ret;
519
520 ret = kstrtou8(buf, 0, &value);
521 if (ret)
522 return ret;
523 if (value > 1)
524 return -EINVAL;
525
526 mutex_lock(&mvm->mutex);
527 iwl_mvm_update_low_latency(mvm, vif, value);
528 mutex_unlock(&mvm->mutex);
529
530 return count;
531}
532
533static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
534 char __user *user_buf,
535 size_t count, loff_t *ppos)
536{
537 struct ieee80211_vif *vif = file->private_data;
538 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
539 char buf[3];
540
541 buf[0] = mvmvif->low_latency ? '1' : '0';
542 buf[1] = '\n';
543 buf[2] = '\0';
544 return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
545}
546
e45a941d
AB		 547#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
548 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
549#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
550 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
820a1a50
JB		 551#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
552 if (!debugfs_create_file(#name, mode, parent, vif, \
553 &iwl_dbgfs_##name##_ops)) \
554 goto err; \
555 } while (0)
556
557MVM_DEBUGFS_READ_FILE_OPS(mac_params);
e45a941d
AB		 558MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
559MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
a21d7bcb 560MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
32a65c34 561MVM_DEBUGFS_WRITE_FILE_OPS(reduced_txp, 10);
820a1a50
JB		 562
563void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
564{
565 struct dentry *dbgfs_dir = vif->debugfs_dir;
566 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
567 char buf[100];
568
569 /*
570 * Check if debugfs directory already exist before creating it.
571 * This may happen when, for example, resetting hw or suspend-resume
572 */
573 if (!dbgfs_dir || mvmvif->dbgfs_dir)
574 return;
575
576 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
7f09d704 577 mvmvif->mvm = mvm;
820a1a50
JB		 578
579 if (!mvmvif->dbgfs_dir) {
580 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
581 dbgfs_dir->d_name.name);
582 return;
583 }
584
ad2549d8 585 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
e45a941d
AB		 586 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
587 (vif->type == NL80211_IFTYPE_STATION && vif->p2p &&
7303dd7f 588 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)))
e45a941d
AB		 589 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
590 S_IRUSR);
591
32a65c34
EG		 592 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
593 MVM_DEBUGFS_ADD_FILE_VIF(reduced_txp, mvmvif->dbgfs_dir, S_IWUSR);
a21d7bcb
JB		 594 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
595 S_IRUSR | S_IWUSR);
820a1a50 596
e45a941d
AB		 597 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
598 mvmvif == mvm->bf_allowed_vif)
599 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
600 S_IRUSR | S_IWUSR);
601
820a1a50
JB		 602 /*
603 * Create symlink for convenience pointing to interface specific
604 * debugfs entries for the driver. For example, under
605 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
606 * find
607 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
608 */
609 snprintf(buf, 100, "../../../%s/%s/%s/%s",
610 dbgfs_dir->d_parent->d_parent->d_name.name,
611 dbgfs_dir->d_parent->d_name.name,
612 dbgfs_dir->d_name.name,
613 mvmvif->dbgfs_dir->d_name.name);
614
615 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
616 mvm->debugfs_dir, buf);
617 if (!mvmvif->dbgfs_slink)
618 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
619 dbgfs_dir->d_name.name);
620 return;
621err:
622 IWL_ERR(mvm, "Can't create debugfs entity\n");
623}
624
625void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
626{
627 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
628
629 debugfs_remove(mvmvif->dbgfs_slink);
630 mvmvif->dbgfs_slink = NULL;
631
632 debugfs_remove_recursive(mvmvif->dbgfs_dir);
633 mvmvif->dbgfs_dir = NULL;
634}
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