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iwlwifi: add new TLV capability flag for BT PLCR
[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.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
820a1a50
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
820a1a50
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include "mvm.h"
66#include "debugfs.h"
67
e45a941d
AB		 68static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
69 struct ieee80211_vif *vif,
70 enum iwl_dbgfs_pm_mask param, int val)
71{
72 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
73 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
74
75 dbgfs_pm->mask |= param;
76
77 switch (param) {
78 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
717e2390 79 int dtimper = vif->bss_conf.dtim_period ?: 1;
e45a941d
AB		 80 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
81
82 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
83 if (val * MSEC_PER_SEC < 3 * dtimper_msec)
84 IWL_WARN(mvm,
85 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
86 val * MSEC_PER_SEC, 3 * dtimper_msec);
87 dbgfs_pm->keep_alive_seconds = val;
88 break;
89 }
90 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
91 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
92 val ? "enabled" : "disabled");
93 dbgfs_pm->skip_over_dtim = val;
94 break;
95 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
96 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
97 dbgfs_pm->skip_dtim_periods = val;
98 break;
99 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
100 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
101 dbgfs_pm->rx_data_timeout = val;
102 break;
103 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
104 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
105 dbgfs_pm->tx_data_timeout = val;
106 break;
e45a941d
AB		 107 case MVM_DEBUGFS_PM_LPRX_ENA:
108 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
109 dbgfs_pm->lprx_ena = val;
110 break;
111 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
112 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
113 dbgfs_pm->lprx_rssi_threshold = val;
114 break;
115 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
116 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
117 dbgfs_pm->snooze_ena = val;
118 break;
119 case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
120 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
121 dbgfs_pm->uapsd_misbehaving = val;
122 break;
84fd7608
EP		 123 case MVM_DEBUGFS_PM_USE_PS_POLL:
124 IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);
125 dbgfs_pm->use_ps_poll = val;
126 break;
e45a941d
AB		 127 }
128}
129
130static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
131 size_t count, loff_t *ppos)
132{
133 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
134 struct iwl_mvm *mvm = mvmvif->mvm;
135 enum iwl_dbgfs_pm_mask param;
136 int val, ret;
137
138 if (!strncmp("keep_alive=", buf, 11)) {
139 if (sscanf(buf + 11, "%d", &val) != 1)
140 return -EINVAL;
141 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
142 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
143 if (sscanf(buf + 15, "%d", &val) != 1)
144 return -EINVAL;
145 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
146 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
147 if (sscanf(buf + 18, "%d", &val) != 1)
148 return -EINVAL;
149 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
150 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
151 if (sscanf(buf + 16, "%d", &val) != 1)
152 return -EINVAL;
153 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
154 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
155 if (sscanf(buf + 16, "%d", &val) != 1)
156 return -EINVAL;
157 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
e45a941d
AB		 158 } else if (!strncmp("lprx=", buf, 5)) {
159 if (sscanf(buf + 5, "%d", &val) != 1)
160 return -EINVAL;
161 param = MVM_DEBUGFS_PM_LPRX_ENA;
162 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
163 if (sscanf(buf + 20, "%d", &val) != 1)
164 return -EINVAL;
165 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
166 POWER_LPRX_RSSI_THRESHOLD_MIN)
167 return -EINVAL;
168 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
169 } else if (!strncmp("snooze_enable=", buf, 14)) {
170 if (sscanf(buf + 14, "%d", &val) != 1)
171 return -EINVAL;
172 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
173 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
174 if (sscanf(buf + 18, "%d", &val) != 1)
175 return -EINVAL;
176 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
84fd7608
EP		 177 } else if (!strncmp("use_ps_poll=", buf, 12)) {
178 if (sscanf(buf + 12, "%d", &val) != 1)
179 return -EINVAL;
180 param = MVM_DEBUGFS_PM_USE_PS_POLL;
e45a941d
AB		 181 } else {
182 return -EINVAL;
183 }
184
185 mutex_lock(&mvm->mutex);
186 iwl_dbgfs_update_pm(mvm, vif, param, val);
999609f1 187 ret = iwl_mvm_power_update_mac(mvm);
e45a941d
AB		 188 mutex_unlock(&mvm->mutex);
189
190 return ret ?: count;
191}
192
193static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
194 char __user *user_buf,
195 size_t count, loff_t *ppos)
196{
197 struct ieee80211_vif *vif = file->private_data;
198 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
199 struct iwl_mvm *mvm = mvmvif->mvm;
200 char buf[512];
201 int bufsz = sizeof(buf);
202 int pos;
203
c1cb92fc 204 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
e45a941d
AB		 205
206 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
207}
208
820a1a50
JB		 209static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
210 char __user *user_buf,
211 size_t count, loff_t *ppos)
212{
213 struct ieee80211_vif *vif = file->private_data;
214 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
7f09d704 215 struct iwl_mvm *mvm = mvmvif->mvm;
820a1a50
JB		 216 u8 ap_sta_id;
217 struct ieee80211_chanctx_conf *chanctx_conf;
218 char buf[512];
219 int bufsz = sizeof(buf);
220 int pos = 0;
221 int i;
222
223 mutex_lock(&mvm->mutex);
224
225 ap_sta_id = mvmvif->ap_sta_id;
226
2284b951
EG		 227 switch (ieee80211_vif_type_p2p(vif)) {
228 case NL80211_IFTYPE_ADHOC:
229 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
230 break;
231 case NL80211_IFTYPE_STATION:
232 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
233 break;
234 case NL80211_IFTYPE_AP:
235 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
236 break;
237 case NL80211_IFTYPE_P2P_CLIENT:
238 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
239 break;
240 case NL80211_IFTYPE_P2P_GO:
241 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
242 break;
243 case NL80211_IFTYPE_P2P_DEVICE:
244 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
245 break;
246 default:
247 break;
248 }
249
820a1a50
JB		 250 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
251 mvmvif->id, mvmvif->color);
252 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
253 vif->bss_conf.bssid);
254 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
255 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
256 pos += scnprintf(buf+pos, bufsz-pos,
257 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
258 i, mvmvif->queue_params[i].txop,
259 mvmvif->queue_params[i].cw_min,
260 mvmvif->queue_params[i].cw_max,
261 mvmvif->queue_params[i].aifs,
262 mvmvif->queue_params[i].uapsd);
263
264 if (vif->type == NL80211_IFTYPE_STATION &&
265 ap_sta_id != IWL_MVM_STATION_COUNT) {
266 struct ieee80211_sta *sta;
820a1a50
JB		 267
268 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
269 lockdep_is_held(&mvm->mutex));
1ddbbb0c 270 if (!IS_ERR_OR_NULL(sta)) {
9d8ce6af 271 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 272
273 pos += scnprintf(buf+pos, bufsz-pos,
1fa477c6 274 "ap_sta_id %d - reduced Tx power %d\n",
1ddbbb0c 275 ap_sta_id,
1fa477c6 276 mvm_sta->bt_reduced_txpower);
1ddbbb0c 277 }
820a1a50
JB		 278 }
279
280 rcu_read_lock();
281 chanctx_conf = rcu_dereference(vif->chanctx_conf);
282 if (chanctx_conf)
283 pos += scnprintf(buf+pos, bufsz-pos,
284 "idle rx chains %d, active rx chains: %d\n",
285 chanctx_conf->rx_chains_static,
286 chanctx_conf->rx_chains_dynamic);
287 rcu_read_unlock();
288
289 mutex_unlock(&mvm->mutex);
290
291 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
292}
293
e45a941d
AB		 294static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
295 enum iwl_dbgfs_bf_mask param, int value)
296{
297 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
298 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
299
300 dbgfs_bf->mask |= param;
301
302 switch (param) {
303 case MVM_DEBUGFS_BF_ENERGY_DELTA:
304 dbgfs_bf->bf_energy_delta = value;
305 break;
306 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
307 dbgfs_bf->bf_roaming_energy_delta = value;
308 break;
309 case MVM_DEBUGFS_BF_ROAMING_STATE:
310 dbgfs_bf->bf_roaming_state = value;
311 break;
312 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
313 dbgfs_bf->bf_temp_threshold = value;
314 break;
315 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
316 dbgfs_bf->bf_temp_fast_filter = value;
317 break;
318 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
319 dbgfs_bf->bf_temp_slow_filter = value;
320 break;
321 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
322 dbgfs_bf->bf_enable_beacon_filter = value;
323 break;
324 case MVM_DEBUGFS_BF_DEBUG_FLAG:
325 dbgfs_bf->bf_debug_flag = value;
326 break;
327 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
328 dbgfs_bf->bf_escape_timer = value;
329 break;
330 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
331 dbgfs_bf->ba_enable_beacon_abort = value;
332 break;
333 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
334 dbgfs_bf->ba_escape_timer = value;
335 break;
336 }
337}
338
339static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
340 size_t count, loff_t *ppos)
341{
342 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
343 struct iwl_mvm *mvm = mvmvif->mvm;
344 enum iwl_dbgfs_bf_mask param;
345 int value, ret = 0;
346
347 if (!strncmp("bf_energy_delta=", buf, 16)) {
348 if (sscanf(buf+16, "%d", &value) != 1)
349 return -EINVAL;
350 if (value < IWL_BF_ENERGY_DELTA_MIN ||
351 value > IWL_BF_ENERGY_DELTA_MAX)
352 return -EINVAL;
353 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
354 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
355 if (sscanf(buf+24, "%d", &value) != 1)
356 return -EINVAL;
357 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
358 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
359 return -EINVAL;
360 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
361 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
362 if (sscanf(buf+17, "%d", &value) != 1)
363 return -EINVAL;
364 if (value < IWL_BF_ROAMING_STATE_MIN ||
365 value > IWL_BF_ROAMING_STATE_MAX)
366 return -EINVAL;
367 param = MVM_DEBUGFS_BF_ROAMING_STATE;
368 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
369 if (sscanf(buf+18, "%d", &value) != 1)
370 return -EINVAL;
371 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
372 value > IWL_BF_TEMP_THRESHOLD_MAX)
373 return -EINVAL;
374 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
375 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
376 if (sscanf(buf+20, "%d", &value) != 1)
377 return -EINVAL;
378 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
379 value > IWL_BF_TEMP_FAST_FILTER_MAX)
380 return -EINVAL;
381 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
382 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
383 if (sscanf(buf+20, "%d", &value) != 1)
384 return -EINVAL;
385 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
386 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
387 return -EINVAL;
388 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
389 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
390 if (sscanf(buf+24, "%d", &value) != 1)
391 return -EINVAL;
392 if (value < 0 || value > 1)
393 return -EINVAL;
394 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
395 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
396 if (sscanf(buf+14, "%d", &value) != 1)
397 return -EINVAL;
398 if (value < 0 || value > 1)
399 return -EINVAL;
400 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
401 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
402 if (sscanf(buf+16, "%d", &value) != 1)
403 return -EINVAL;
404 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
405 value > IWL_BF_ESCAPE_TIMER_MAX)
406 return -EINVAL;
407 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
408 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
409 if (sscanf(buf+16, "%d", &value) != 1)
410 return -EINVAL;
411 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
412 value > IWL_BA_ESCAPE_TIMER_MAX)
413 return -EINVAL;
414 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
415 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
416 if (sscanf(buf+23, "%d", &value) != 1)
417 return -EINVAL;
418 if (value < 0 || value > 1)
419 return -EINVAL;
420 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
421 } else {
422 return -EINVAL;
423 }
424
425 mutex_lock(&mvm->mutex);
426 iwl_dbgfs_update_bf(vif, param, value);
427 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
a1022927 428 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
e45a941d 429 else
a1022927 430 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
e45a941d
AB		 431 mutex_unlock(&mvm->mutex);
432
433 return ret ?: count;
434}
435
436static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
437 char __user *user_buf,
438 size_t count, loff_t *ppos)
439{
440 struct ieee80211_vif *vif = file->private_data;
441 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
442 char buf[256];
443 int pos = 0;
444 const size_t bufsz = sizeof(buf);
445 struct iwl_beacon_filter_cmd cmd = {
446 IWL_BF_CMD_CONFIG_DEFAULTS,
447 .bf_enable_beacon_filter =
448 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
449 .ba_enable_beacon_abort =
450 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
451 };
452
453 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
454 if (mvmvif->bf_data.bf_enabled)
455 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
456 else
457 cmd.bf_enable_beacon_filter = 0;
458
459 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
460 le32_to_cpu(cmd.bf_energy_delta));
461 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
462 le32_to_cpu(cmd.bf_roaming_energy_delta));
463 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
464 le32_to_cpu(cmd.bf_roaming_state));
465 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
466 le32_to_cpu(cmd.bf_temp_threshold));
467 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
468 le32_to_cpu(cmd.bf_temp_fast_filter));
469 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
470 le32_to_cpu(cmd.bf_temp_slow_filter));
471 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
472 le32_to_cpu(cmd.bf_enable_beacon_filter));
473 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
474 le32_to_cpu(cmd.bf_debug_flag));
475 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
476 le32_to_cpu(cmd.bf_escape_timer));
477 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
478 le32_to_cpu(cmd.ba_escape_timer));
479 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
480 le32_to_cpu(cmd.ba_enable_beacon_abort));
481
482 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
483}
484
a21d7bcb
JB		 485static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
486 size_t count, loff_t *ppos)
487{
488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
489 struct iwl_mvm *mvm = mvmvif->mvm;
490 u8 value;
491 int ret;
492
493 ret = kstrtou8(buf, 0, &value);
494 if (ret)
495 return ret;
496 if (value > 1)
497 return -EINVAL;
498
499 mutex_lock(&mvm->mutex);
500 iwl_mvm_update_low_latency(mvm, vif, value);
501 mutex_unlock(&mvm->mutex);
502
503 return count;
504}
505
506static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
507 char __user *user_buf,
508 size_t count, loff_t *ppos)
509{
510 struct ieee80211_vif *vif = file->private_data;
511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
512 char buf[3];
513
514 buf[0] = mvmvif->low_latency ? '1' : '0';
515 buf[1] = '\n';
516 buf[2] = '\0';
517 return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
518}
519
e39c1b5f
JB		 520static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,
521 char __user *user_buf,
522 size_t count, loff_t *ppos)
523{
524 struct ieee80211_vif *vif = file->private_data;
525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
526 char buf[20];
527 int len;
528
529 len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_bssid);
530 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
531}
532
533static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,
534 char *buf, size_t count,
535 loff_t *ppos)
536{
537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
538 struct iwl_mvm *mvm = mvmvif->mvm;
539 bool ret;
540
541 mutex_lock(&mvm->mutex);
542 ret = mac_pton(buf, mvmvif->uapsd_misbehaving_bssid);
543 mutex_unlock(&mvm->mutex);
544
545 return ret ? count : -EINVAL;
546}
547
e45a941d
AB		 548#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
549 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
550#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
551 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
820a1a50
JB		 552#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
553 if (!debugfs_create_file(#name, mode, parent, vif, \
554 &iwl_dbgfs_##name##_ops)) \
555 goto err; \
556 } while (0)
557
558MVM_DEBUGFS_READ_FILE_OPS(mac_params);
e45a941d
AB		 559MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
560MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
a21d7bcb 561MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
e39c1b5f 562MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
820a1a50
JB		 563
564void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
565{
566 struct dentry *dbgfs_dir = vif->debugfs_dir;
567 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
568 char buf[100];
569
570 /*
571 * Check if debugfs directory already exist before creating it.
572 * This may happen when, for example, resetting hw or suspend-resume
573 */
574 if (!dbgfs_dir || mvmvif->dbgfs_dir)
575 return;
576
577 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
7f09d704 578 mvmvif->mvm = mvm;
820a1a50
JB		 579
580 if (!mvmvif->dbgfs_dir) {
581 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
582 dbgfs_dir->d_name.name);
583 return;
584 }
585
ad2549d8 586 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
e45a941d
AB		 587 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
588 (vif->type == NL80211_IFTYPE_STATION && vif->p2p &&
7303dd7f 589 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)))
e45a941d
AB		 590 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
591 S_IRUSR);
592
32a65c34 593 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
a21d7bcb
JB		 594 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
595 S_IRUSR | S_IWUSR);
e39c1b5f
JB		 596 MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir,
597 S_IRUSR | S_IWUSR);
820a1a50 598
e45a941d
AB		 599 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
600 mvmvif == mvm->bf_allowed_vif)
601 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
602 S_IRUSR | S_IWUSR);
603
820a1a50
JB		 604 /*
605 * Create symlink for convenience pointing to interface specific
606 * debugfs entries for the driver. For example, under
607 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
608 * find
609 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
610 */
611 snprintf(buf, 100, "../../../%s/%s/%s/%s",
612 dbgfs_dir->d_parent->d_parent->d_name.name,
613 dbgfs_dir->d_parent->d_name.name,
614 dbgfs_dir->d_name.name,
615 mvmvif->dbgfs_dir->d_name.name);
616
617 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
618 mvm->debugfs_dir, buf);
619 if (!mvmvif->dbgfs_slink)
620 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
621 dbgfs_dir->d_name.name);
622 return;
623err:
624 IWL_ERR(mvm, "Can't create debugfs entity\n");
625}
626
627void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
628{
629 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
630
631 debugfs_remove(mvmvif->dbgfs_slink);
632 mvmvif->dbgfs_slink = NULL;
633
634 debugfs_remove_recursive(mvmvif->dbgfs_dir);
635 mvmvif->dbgfs_dir = NULL;
636}
Linux kernel - Deliverables
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