1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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.
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.
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,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
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
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.
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.
62 *****************************************************************************/
66 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
67 struct ieee80211_vif *vif,
68 enum iwl_dbgfs_pm_mask param, int val)
70 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
71 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
73 dbgfs_pm->mask |= param;
76 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
77 int dtimper = vif->bss_conf.dtim_period ?: 1;
78 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
80 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
81 if (val * MSEC_PER_SEC < 3 * dtimper_msec)
83 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
84 val * MSEC_PER_SEC, 3 * dtimper_msec);
85 dbgfs_pm->keep_alive_seconds = val;
88 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
89 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
90 val ? "enabled" : "disabled");
91 dbgfs_pm->skip_over_dtim = val;
93 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
94 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
95 dbgfs_pm->skip_dtim_periods = val;
97 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
98 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
99 dbgfs_pm->rx_data_timeout = val;
101 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
102 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
103 dbgfs_pm->tx_data_timeout = val;
105 case MVM_DEBUGFS_PM_LPRX_ENA:
106 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
107 dbgfs_pm->lprx_ena = val;
109 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
110 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
111 dbgfs_pm->lprx_rssi_threshold = val;
113 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
114 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
115 dbgfs_pm->snooze_ena = val;
117 case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
118 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
119 dbgfs_pm->uapsd_misbehaving = val;
124 static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,
125 size_t count, loff_t *ppos)
127 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
128 struct iwl_mvm *mvm = mvmvif->mvm;
129 enum iwl_dbgfs_pm_mask param;
132 if (!strncmp("keep_alive=", buf, 11)) {
133 if (sscanf(buf + 11, "%d", &val) != 1)
135 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
136 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
137 if (sscanf(buf + 15, "%d", &val) != 1)
139 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
140 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
141 if (sscanf(buf + 18, "%d", &val) != 1)
143 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
144 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
145 if (sscanf(buf + 16, "%d", &val) != 1)
147 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
148 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
149 if (sscanf(buf + 16, "%d", &val) != 1)
151 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
152 } else if (!strncmp("lprx=", buf, 5)) {
153 if (sscanf(buf + 5, "%d", &val) != 1)
155 param = MVM_DEBUGFS_PM_LPRX_ENA;
156 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
157 if (sscanf(buf + 20, "%d", &val) != 1)
159 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
160 POWER_LPRX_RSSI_THRESHOLD_MIN)
162 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
163 } else if (!strncmp("snooze_enable=", buf, 14)) {
164 if (sscanf(buf + 14, "%d", &val) != 1)
166 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
167 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
168 if (sscanf(buf + 18, "%d", &val) != 1)
170 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
175 mutex_lock(&mvm->mutex);
176 iwl_dbgfs_update_pm(mvm, vif, param, val);
177 ret = iwl_mvm_power_update_mac(mvm);
178 mutex_unlock(&mvm->mutex);
183 static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
184 char __user *user_buf,
185 size_t count, loff_t *ppos)
187 struct ieee80211_vif *vif = file->private_data;
188 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
189 struct iwl_mvm *mvm = mvmvif->mvm;
191 int bufsz = sizeof(buf);
194 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);
196 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
199 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
200 char __user *user_buf,
201 size_t count, loff_t *ppos)
203 struct ieee80211_vif *vif = file->private_data;
204 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
205 struct iwl_mvm *mvm = mvmvif->mvm;
207 struct ieee80211_chanctx_conf *chanctx_conf;
209 int bufsz = sizeof(buf);
213 mutex_lock(&mvm->mutex);
215 ap_sta_id = mvmvif->ap_sta_id;
217 switch (ieee80211_vif_type_p2p(vif)) {
218 case NL80211_IFTYPE_ADHOC:
219 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");
221 case NL80211_IFTYPE_STATION:
222 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");
224 case NL80211_IFTYPE_AP:
225 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");
227 case NL80211_IFTYPE_P2P_CLIENT:
228 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");
230 case NL80211_IFTYPE_P2P_GO:
231 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");
233 case NL80211_IFTYPE_P2P_DEVICE:
234 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");
240 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
241 mvmvif->id, mvmvif->color);
242 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
243 vif->bss_conf.bssid);
244 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
245 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
246 pos += scnprintf(buf+pos, bufsz-pos,
247 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
248 i, mvmvif->queue_params[i].txop,
249 mvmvif->queue_params[i].cw_min,
250 mvmvif->queue_params[i].cw_max,
251 mvmvif->queue_params[i].aifs,
252 mvmvif->queue_params[i].uapsd);
254 if (vif->type == NL80211_IFTYPE_STATION &&
255 ap_sta_id != IWL_MVM_STATION_COUNT) {
256 struct ieee80211_sta *sta;
258 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
259 lockdep_is_held(&mvm->mutex));
260 if (!IS_ERR_OR_NULL(sta)) {
261 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
263 pos += scnprintf(buf+pos, bufsz-pos,
264 "ap_sta_id %d - reduced Tx power %d\n",
266 mvm_sta->bt_reduced_txpower);
271 chanctx_conf = rcu_dereference(vif->chanctx_conf);
273 pos += scnprintf(buf+pos, bufsz-pos,
274 "idle rx chains %d, active rx chains: %d\n",
275 chanctx_conf->rx_chains_static,
276 chanctx_conf->rx_chains_dynamic);
279 mutex_unlock(&mvm->mutex);
281 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
284 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
285 enum iwl_dbgfs_bf_mask param, int value)
287 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
288 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
290 dbgfs_bf->mask |= param;
293 case MVM_DEBUGFS_BF_ENERGY_DELTA:
294 dbgfs_bf->bf_energy_delta = value;
296 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
297 dbgfs_bf->bf_roaming_energy_delta = value;
299 case MVM_DEBUGFS_BF_ROAMING_STATE:
300 dbgfs_bf->bf_roaming_state = value;
302 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
303 dbgfs_bf->bf_temp_threshold = value;
305 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
306 dbgfs_bf->bf_temp_fast_filter = value;
308 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
309 dbgfs_bf->bf_temp_slow_filter = value;
311 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
312 dbgfs_bf->bf_enable_beacon_filter = value;
314 case MVM_DEBUGFS_BF_DEBUG_FLAG:
315 dbgfs_bf->bf_debug_flag = value;
317 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
318 dbgfs_bf->bf_escape_timer = value;
320 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
321 dbgfs_bf->ba_enable_beacon_abort = value;
323 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
324 dbgfs_bf->ba_escape_timer = value;
329 static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,
330 size_t count, loff_t *ppos)
332 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
333 struct iwl_mvm *mvm = mvmvif->mvm;
334 enum iwl_dbgfs_bf_mask param;
337 if (!strncmp("bf_energy_delta=", buf, 16)) {
338 if (sscanf(buf+16, "%d", &value) != 1)
340 if (value < IWL_BF_ENERGY_DELTA_MIN ||
341 value > IWL_BF_ENERGY_DELTA_MAX)
343 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
344 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
345 if (sscanf(buf+24, "%d", &value) != 1)
347 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
348 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
350 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
351 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
352 if (sscanf(buf+17, "%d", &value) != 1)
354 if (value < IWL_BF_ROAMING_STATE_MIN ||
355 value > IWL_BF_ROAMING_STATE_MAX)
357 param = MVM_DEBUGFS_BF_ROAMING_STATE;
358 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
359 if (sscanf(buf+18, "%d", &value) != 1)
361 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
362 value > IWL_BF_TEMP_THRESHOLD_MAX)
364 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
365 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
366 if (sscanf(buf+20, "%d", &value) != 1)
368 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
369 value > IWL_BF_TEMP_FAST_FILTER_MAX)
371 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
372 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
373 if (sscanf(buf+20, "%d", &value) != 1)
375 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
376 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
378 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
379 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
380 if (sscanf(buf+24, "%d", &value) != 1)
382 if (value < 0 || value > 1)
384 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
385 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
386 if (sscanf(buf+14, "%d", &value) != 1)
388 if (value < 0 || value > 1)
390 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
391 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
392 if (sscanf(buf+16, "%d", &value) != 1)
394 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
395 value > IWL_BF_ESCAPE_TIMER_MAX)
397 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
398 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
399 if (sscanf(buf+16, "%d", &value) != 1)
401 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
402 value > IWL_BA_ESCAPE_TIMER_MAX)
404 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
405 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
406 if (sscanf(buf+23, "%d", &value) != 1)
408 if (value < 0 || value > 1)
410 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
415 mutex_lock(&mvm->mutex);
416 iwl_dbgfs_update_bf(vif, param, value);
417 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)
418 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
420 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
421 mutex_unlock(&mvm->mutex);
426 static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
427 char __user *user_buf,
428 size_t count, loff_t *ppos)
430 struct ieee80211_vif *vif = file->private_data;
431 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
434 const size_t bufsz = sizeof(buf);
435 struct iwl_beacon_filter_cmd cmd = {
436 IWL_BF_CMD_CONFIG_DEFAULTS,
437 .bf_enable_beacon_filter =
438 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
439 .ba_enable_beacon_abort =
440 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
443 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
444 if (mvmvif->bf_data.bf_enabled)
445 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
447 cmd.bf_enable_beacon_filter = 0;
449 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
450 le32_to_cpu(cmd.bf_energy_delta));
451 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
452 le32_to_cpu(cmd.bf_roaming_energy_delta));
453 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
454 le32_to_cpu(cmd.bf_roaming_state));
455 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
456 le32_to_cpu(cmd.bf_temp_threshold));
457 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
458 le32_to_cpu(cmd.bf_temp_fast_filter));
459 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
460 le32_to_cpu(cmd.bf_temp_slow_filter));
461 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
462 le32_to_cpu(cmd.bf_enable_beacon_filter));
463 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
464 le32_to_cpu(cmd.bf_debug_flag));
465 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
466 le32_to_cpu(cmd.bf_escape_timer));
467 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
468 le32_to_cpu(cmd.ba_escape_timer));
469 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
470 le32_to_cpu(cmd.ba_enable_beacon_abort));
472 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
475 static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,
476 size_t count, loff_t *ppos)
478 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
479 struct iwl_mvm *mvm = mvmvif->mvm;
483 ret = kstrtou8(buf, 0, &value);
489 mutex_lock(&mvm->mutex);
490 iwl_mvm_update_low_latency(mvm, vif, value);
491 mutex_unlock(&mvm->mutex);
496 static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
497 char __user *user_buf,
498 size_t count, loff_t *ppos)
500 struct ieee80211_vif *vif = file->private_data;
501 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
504 buf[0] = mvmvif->low_latency ? '1' : '0';
507 return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
510 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
511 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
512 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
513 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
514 #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
515 if (!debugfs_create_file(#name, mode, parent, vif, \
516 &iwl_dbgfs_##name##_ops)) \
520 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
521 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
522 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
523 MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
525 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
527 struct dentry *dbgfs_dir = vif->debugfs_dir;
528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
532 * Check if debugfs directory already exist before creating it.
533 * This may happen when, for example, resetting hw or suspend-resume
535 if (!dbgfs_dir || mvmvif->dbgfs_dir)
538 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
541 if (!mvmvif->dbgfs_dir) {
542 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
543 dbgfs_dir->d_name.name);
547 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
548 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
549 (vif->type == NL80211_IFTYPE_STATION && vif->p2p &&
550 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)))
551 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
554 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
555 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
558 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
559 mvmvif == mvm->bf_allowed_vif)
560 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
564 * Create symlink for convenience pointing to interface specific
565 * debugfs entries for the driver. For example, under
566 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
568 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
570 snprintf(buf, 100, "../../../%s/%s/%s/%s",
571 dbgfs_dir->d_parent->d_parent->d_name.name,
572 dbgfs_dir->d_parent->d_name.name,
573 dbgfs_dir->d_name.name,
574 mvmvif->dbgfs_dir->d_name.name);
576 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
577 mvm->debugfs_dir, buf);
578 if (!mvmvif->dbgfs_slink)
579 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
580 dbgfs_dir->d_name.name);
583 IWL_ERR(mvm, "Can't create debugfs entity\n");
586 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
588 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
590 debugfs_remove(mvmvif->dbgfs_slink);
591 mvmvif->dbgfs_slink = NULL;
593 debugfs_remove_recursive(mvmvif->dbgfs_dir);
594 mvmvif->dbgfs_dir = NULL;