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iwlwifi: remove IWL_UCODE_TLV_FLAGS_NEWBT_COEX TLV flag
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs-vif.c
CommitLineData
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;
106 case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
107 IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
108 dbgfs_pm->disable_power_off = 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 }
127}
128
129static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
130 size_t count, loff_t *ppos)
131{
132 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
133 struct iwl_mvm *mvm = mvmvif->mvm;
134 enum iwl_dbgfs_pm_mask param;
135 int val, ret;
136
137 if (!strncmp("keep_alive=", buf, 11)) {
138 if (sscanf(buf + 11, "%d", &val) != 1)
139 return -EINVAL;
140 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
141 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
142 if (sscanf(buf + 15, "%d", &val) != 1)
143 return -EINVAL;
144 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
145 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
146 if (sscanf(buf + 18, "%d", &val) != 1)
147 return -EINVAL;
148 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
149 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
150 if (sscanf(buf + 16, "%d", &val) != 1)
151 return -EINVAL;
152 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
153 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
154 if (sscanf(buf + 16, "%d", &val) != 1)
155 return -EINVAL;
156 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
157 } else if (!strncmp("disable_power_off=", buf, 18) &&
158 !(mvm->fw->ucode_capa.flags &
159 IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)) {
160 if (sscanf(buf + 18, "%d", &val) != 1)
161 return -EINVAL;
162 param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
163 } else if (!strncmp("lprx=", buf, 5)) {
164 if (sscanf(buf + 5, "%d", &val) != 1)
165 return -EINVAL;
166 param = MVM_DEBUGFS_PM_LPRX_ENA;
167 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
168 if (sscanf(buf + 20, "%d", &val) != 1)
169 return -EINVAL;
170 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
171 POWER_LPRX_RSSI_THRESHOLD_MIN)
172 return -EINVAL;
173 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
174 } else if (!strncmp("snooze_enable=", buf, 14)) {
175 if (sscanf(buf + 14, "%d", &val) != 1)
176 return -EINVAL;
177 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
178 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
179 if (sscanf(buf + 18, "%d", &val) != 1)
180 return -EINVAL;
181 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
182 } else {
183 return -EINVAL;
184 }
185
186 mutex_lock(&mvm->mutex);
187 iwl_dbgfs_update_pm(mvm, vif, param, val);
e5e7aa8e 188 ret = iwl_mvm_power_update_mac(mvm, vif);
e45a941d
AB		 189 mutex_unlock(&mvm->mutex);
190
191 return ret ?: count;
192}
193
194static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
195 char __user *user_buf,
196 size_t count, loff_t *ppos)
197{
198 struct ieee80211_vif *vif = file->private_data;
199 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
200 struct iwl_mvm *mvm = mvmvif->mvm;
201 char buf[512];
202 int bufsz = sizeof(buf);
203 int pos;
204
c1cb92fc 205 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
e45a941d
AB		 206
207 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
208}
209
820a1a50
JB		 210static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
211 char __user *user_buf,
212 size_t count, loff_t *ppos)
213{
214 struct ieee80211_vif *vif = file->private_data;
215 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
7f09d704 216 struct iwl_mvm *mvm = mvmvif->mvm;
820a1a50
JB		 217 u8 ap_sta_id;
218 struct ieee80211_chanctx_conf *chanctx_conf;
219 char buf[512];
220 int bufsz = sizeof(buf);
221 int pos = 0;
222 int i;
223
224 mutex_lock(&mvm->mutex);
225
226 ap_sta_id = mvmvif->ap_sta_id;
227
2284b951
EG		 228 switch (ieee80211_vif_type_p2p(vif)) {
229 case NL80211_IFTYPE_ADHOC:
230 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
231 break;
232 case NL80211_IFTYPE_STATION:
233 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
234 break;
235 case NL80211_IFTYPE_AP:
236 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
237 break;
238 case NL80211_IFTYPE_P2P_CLIENT:
239 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
240 break;
241 case NL80211_IFTYPE_P2P_GO:
242 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
243 break;
244 case NL80211_IFTYPE_P2P_DEVICE:
245 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
246 break;
247 default:
248 break;
249 }
250
820a1a50
JB		 251 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
252 mvmvif->id, mvmvif->color);
253 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
254 vif->bss_conf.bssid);
255 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
256 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
257 pos += scnprintf(buf+pos, bufsz-pos,
258 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
259 i, mvmvif->queue_params[i].txop,
260 mvmvif->queue_params[i].cw_min,
261 mvmvif->queue_params[i].cw_max,
262 mvmvif->queue_params[i].aifs,
263 mvmvif->queue_params[i].uapsd);
264
265 if (vif->type == NL80211_IFTYPE_STATION &&
266 ap_sta_id != IWL_MVM_STATION_COUNT) {
267 struct ieee80211_sta *sta;
820a1a50
JB		 268
269 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
270 lockdep_is_held(&mvm->mutex));
1ddbbb0c
JB		 271 if (!IS_ERR_OR_NULL(sta)) {
272 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
273
274 pos += scnprintf(buf+pos, bufsz-pos,
32a65c34 275 "ap_sta_id %d - reduced Tx power %d force %d\n",
1ddbbb0c 276 ap_sta_id,
32a65c34
EG		 277 mvm_sta->bt_reduced_txpower,
278 mvm_sta->bt_reduced_txpower_dbg);
1ddbbb0c 279 }
820a1a50
JB		 280 }
281
282 rcu_read_lock();
283 chanctx_conf = rcu_dereference(vif->chanctx_conf);
284 if (chanctx_conf)
285 pos += scnprintf(buf+pos, bufsz-pos,
286 "idle rx chains %d, active rx chains: %d\n",
287 chanctx_conf->rx_chains_static,
288 chanctx_conf->rx_chains_dynamic);
289 rcu_read_unlock();
290
291 mutex_unlock(&mvm->mutex);
292
293 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
294}
295
32a65c34
EG		 296static ssize_t iwl_dbgfs_reduced_txp_write(struct ieee80211_vif *vif,
297 char *buf, size_t count,
298 loff_t *ppos)
299{
300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
301 struct iwl_mvm *mvm = mvmvif->mvm;
302 struct iwl_mvm_sta *mvmsta;
303 bool reduced_tx_power;
304 int ret;
305
306 if (mvmvif->ap_sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
307 return -ENOTCONN;
308
309 if (strtobool(buf, &reduced_tx_power) != 0)
310 return -EINVAL;
311
312 mutex_lock(&mvm->mutex);
313
314 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
f718c2df
EG		 315 if (IS_ERR_OR_NULL(mvmsta)) {
316 mutex_unlock(&mvm->mutex);
317 return -ENOTCONN;
318 }
319
32a65c34
EG		 320 mvmsta->bt_reduced_txpower_dbg = false;
321 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
322 reduced_tx_power);
323 if (!ret)
324 mvmsta->bt_reduced_txpower_dbg = true;
325
326 mutex_unlock(&mvm->mutex);
327
328 return ret ? : count;
329}
330
e45a941d
AB		 331static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
332 enum iwl_dbgfs_bf_mask param, int value)
333{
334 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
335 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
336
337 dbgfs_bf->mask |= param;
338
339 switch (param) {
340 case MVM_DEBUGFS_BF_ENERGY_DELTA:
341 dbgfs_bf->bf_energy_delta = value;
342 break;
343 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
344 dbgfs_bf->bf_roaming_energy_delta = value;
345 break;
346 case MVM_DEBUGFS_BF_ROAMING_STATE:
347 dbgfs_bf->bf_roaming_state = value;
348 break;
349 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
350 dbgfs_bf->bf_temp_threshold = value;
351 break;
352 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
353 dbgfs_bf->bf_temp_fast_filter = value;
354 break;
355 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
356 dbgfs_bf->bf_temp_slow_filter = value;
357 break;
358 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
359 dbgfs_bf->bf_enable_beacon_filter = value;
360 break;
361 case MVM_DEBUGFS_BF_DEBUG_FLAG:
362 dbgfs_bf->bf_debug_flag = value;
363 break;
364 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
365 dbgfs_bf->bf_escape_timer = value;
366 break;
367 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
368 dbgfs_bf->ba_enable_beacon_abort = value;
369 break;
370 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
371 dbgfs_bf->ba_escape_timer = value;
372 break;
373 }
374}
375
376static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
377 size_t count, loff_t *ppos)
378{
379 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
380 struct iwl_mvm *mvm = mvmvif->mvm;
381 enum iwl_dbgfs_bf_mask param;
382 int value, ret = 0;
383
384 if (!strncmp("bf_energy_delta=", buf, 16)) {
385 if (sscanf(buf+16, "%d", &value) != 1)
386 return -EINVAL;
387 if (value < IWL_BF_ENERGY_DELTA_MIN ||
388 value > IWL_BF_ENERGY_DELTA_MAX)
389 return -EINVAL;
390 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
391 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
392 if (sscanf(buf+24, "%d", &value) != 1)
393 return -EINVAL;
394 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
395 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
396 return -EINVAL;
397 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
398 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
399 if (sscanf(buf+17, "%d", &value) != 1)
400 return -EINVAL;
401 if (value < IWL_BF_ROAMING_STATE_MIN ||
402 value > IWL_BF_ROAMING_STATE_MAX)
403 return -EINVAL;
404 param = MVM_DEBUGFS_BF_ROAMING_STATE;
405 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
406 if (sscanf(buf+18, "%d", &value) != 1)
407 return -EINVAL;
408 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
409 value > IWL_BF_TEMP_THRESHOLD_MAX)
410 return -EINVAL;
411 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
412 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
413 if (sscanf(buf+20, "%d", &value) != 1)
414 return -EINVAL;
415 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
416 value > IWL_BF_TEMP_FAST_FILTER_MAX)
417 return -EINVAL;
418 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
419 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
420 if (sscanf(buf+20, "%d", &value) != 1)
421 return -EINVAL;
422 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
423 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
424 return -EINVAL;
425 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
426 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
427 if (sscanf(buf+24, "%d", &value) != 1)
428 return -EINVAL;
429 if (value < 0 || value > 1)
430 return -EINVAL;
431 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
432 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
433 if (sscanf(buf+14, "%d", &value) != 1)
434 return -EINVAL;
435 if (value < 0 || value > 1)
436 return -EINVAL;
437 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
438 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
439 if (sscanf(buf+16, "%d", &value) != 1)
440 return -EINVAL;
441 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
442 value > IWL_BF_ESCAPE_TIMER_MAX)
443 return -EINVAL;
444 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
445 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
446 if (sscanf(buf+16, "%d", &value) != 1)
447 return -EINVAL;
448 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
449 value > IWL_BA_ESCAPE_TIMER_MAX)
450 return -EINVAL;
451 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
452 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
453 if (sscanf(buf+23, "%d", &value) != 1)
454 return -EINVAL;
455 if (value < 0 || value > 1)
456 return -EINVAL;
457 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
458 } else {
459 return -EINVAL;
460 }
461
462 mutex_lock(&mvm->mutex);
463 iwl_dbgfs_update_bf(vif, param, value);
464 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
3dd37d05 465 ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
e45a941d 466 else
3dd37d05 467 ret = iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC);
e45a941d
AB		 468 mutex_unlock(&mvm->mutex);
469
470 return ret ?: count;
471}
472
473static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
474 char __user *user_buf,
475 size_t count, loff_t *ppos)
476{
477 struct ieee80211_vif *vif = file->private_data;
478 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
479 char buf[256];
480 int pos = 0;
481 const size_t bufsz = sizeof(buf);
482 struct iwl_beacon_filter_cmd cmd = {
483 IWL_BF_CMD_CONFIG_DEFAULTS,
484 .bf_enable_beacon_filter =
485 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
486 .ba_enable_beacon_abort =
487 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
488 };
489
490 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
491 if (mvmvif->bf_data.bf_enabled)
492 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
493 else
494 cmd.bf_enable_beacon_filter = 0;
495
496 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
497 le32_to_cpu(cmd.bf_energy_delta));
498 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
499 le32_to_cpu(cmd.bf_roaming_energy_delta));
500 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
501 le32_to_cpu(cmd.bf_roaming_state));
502 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
503 le32_to_cpu(cmd.bf_temp_threshold));
504 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
505 le32_to_cpu(cmd.bf_temp_fast_filter));
506 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
507 le32_to_cpu(cmd.bf_temp_slow_filter));
508 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
509 le32_to_cpu(cmd.bf_enable_beacon_filter));
510 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
511 le32_to_cpu(cmd.bf_debug_flag));
512 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
513 le32_to_cpu(cmd.bf_escape_timer));
514 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
515 le32_to_cpu(cmd.ba_escape_timer));
516 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
517 le32_to_cpu(cmd.ba_enable_beacon_abort));
518
519 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
520}
521
a21d7bcb
JB		 522static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
523 size_t count, loff_t *ppos)
524{
525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
526 struct iwl_mvm *mvm = mvmvif->mvm;
527 u8 value;
528 int ret;
529
530 ret = kstrtou8(buf, 0, &value);
531 if (ret)
532 return ret;
533 if (value > 1)
534 return -EINVAL;
535
536 mutex_lock(&mvm->mutex);
537 iwl_mvm_update_low_latency(mvm, vif, value);
538 mutex_unlock(&mvm->mutex);
539
540 return count;
541}
542
543static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
544 char __user *user_buf,
545 size_t count, loff_t *ppos)
546{
547 struct ieee80211_vif *vif = file->private_data;
548 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
549 char buf[3];
550
551 buf[0] = mvmvif->low_latency ? '1' : '0';
552 buf[1] = '\n';
553 buf[2] = '\0';
554 return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
555}
556
e45a941d
AB		 557#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
558 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
559#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
560 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
820a1a50
JB		 561#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
562 if (!debugfs_create_file(#name, mode, parent, vif, \
563 &iwl_dbgfs_##name##_ops)) \
564 goto err; \
565 } while (0)
566
567MVM_DEBUGFS_READ_FILE_OPS(mac_params);
e45a941d
AB		 568MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
569MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
a21d7bcb 570MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
32a65c34 571MVM_DEBUGFS_WRITE_FILE_OPS(reduced_txp, 10);
820a1a50
JB		 572
573void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
574{
575 struct dentry *dbgfs_dir = vif->debugfs_dir;
576 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
577 char buf[100];
578
579 /*
580 * Check if debugfs directory already exist before creating it.
581 * This may happen when, for example, resetting hw or suspend-resume
582 */
583 if (!dbgfs_dir || mvmvif->dbgfs_dir)
584 return;
585
586 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
7f09d704 587 mvmvif->mvm = mvm;
820a1a50
JB		 588
589 if (!mvmvif->dbgfs_dir) {
590 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
591 dbgfs_dir->d_name.name);
592 return;
593 }
594
c1cb92fc
EG		 595 if ((mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT) &&
596 iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
e45a941d
AB		 597 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
598 (vif->type == NL80211_IFTYPE_STATION && vif->p2p &&
7303dd7f 599 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)))
e45a941d
AB		 600 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
601 S_IRUSR);
602
32a65c34
EG		 603 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
604 MVM_DEBUGFS_ADD_FILE_VIF(reduced_txp, mvmvif->dbgfs_dir, S_IWUSR);
a21d7bcb
JB		 605 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
606 S_IRUSR | S_IWUSR);
820a1a50 607
e45a941d
AB		 608 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
609 mvmvif == mvm->bf_allowed_vif)
610 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
611 S_IRUSR | S_IWUSR);
612
820a1a50
JB		 613 /*
614 * Create symlink for convenience pointing to interface specific
615 * debugfs entries for the driver. For example, under
616 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
617 * find
618 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
619 */
620 snprintf(buf, 100, "../../../%s/%s/%s/%s",
621 dbgfs_dir->d_parent->d_parent->d_name.name,
622 dbgfs_dir->d_parent->d_name.name,
623 dbgfs_dir->d_name.name,
624 mvmvif->dbgfs_dir->d_name.name);
625
626 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
627 mvm->debugfs_dir, buf);
628 if (!mvmvif->dbgfs_slink)
629 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
630 dbgfs_dir->d_name.name);
631 return;
632err:
633 IWL_ERR(mvm, "Can't create debugfs entity\n");
634}
635
636void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
637{
638 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
639
640 debugfs_remove(mvmvif->dbgfs_slink);
641 mvmvif->dbgfs_slink = NULL;
642
643 debugfs_remove_recursive(mvmvif->dbgfs_dir);
644 mvmvif->dbgfs_dir = NULL;
645}
Linux kernel - Deliverables
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