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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 |
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) | |
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 | ||
129 | static 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); | |
188 | ret = iwl_mvm_power_update_mode(mvm, vif); | |
189 | mutex_unlock(&mvm->mutex); | |
190 | ||
191 | return ret ?: count; | |
192 | } | |
193 | ||
194 | static 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 | ||
205 | pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz); | |
206 | ||
207 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
208 | } | |
209 | ||
820a1a50 JB |
210 | static 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 | ||
228 | pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n", | |
229 | mvmvif->id, mvmvif->color); | |
230 | pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n", | |
231 | vif->bss_conf.bssid); | |
232 | pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n"); | |
233 | for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) | |
234 | pos += scnprintf(buf+pos, bufsz-pos, | |
235 | "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n", | |
236 | i, mvmvif->queue_params[i].txop, | |
237 | mvmvif->queue_params[i].cw_min, | |
238 | mvmvif->queue_params[i].cw_max, | |
239 | mvmvif->queue_params[i].aifs, | |
240 | mvmvif->queue_params[i].uapsd); | |
241 | ||
242 | if (vif->type == NL80211_IFTYPE_STATION && | |
243 | ap_sta_id != IWL_MVM_STATION_COUNT) { | |
244 | struct ieee80211_sta *sta; | |
820a1a50 JB |
245 | |
246 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id], | |
247 | lockdep_is_held(&mvm->mutex)); | |
1ddbbb0c JB |
248 | if (!IS_ERR_OR_NULL(sta)) { |
249 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
250 | ||
251 | pos += scnprintf(buf+pos, bufsz-pos, | |
252 | "ap_sta_id %d - reduced Tx power %d\n", | |
253 | ap_sta_id, | |
254 | mvm_sta->bt_reduced_txpower); | |
255 | } | |
820a1a50 JB |
256 | } |
257 | ||
258 | rcu_read_lock(); | |
259 | chanctx_conf = rcu_dereference(vif->chanctx_conf); | |
260 | if (chanctx_conf) | |
261 | pos += scnprintf(buf+pos, bufsz-pos, | |
262 | "idle rx chains %d, active rx chains: %d\n", | |
263 | chanctx_conf->rx_chains_static, | |
264 | chanctx_conf->rx_chains_dynamic); | |
265 | rcu_read_unlock(); | |
266 | ||
267 | mutex_unlock(&mvm->mutex); | |
268 | ||
269 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
270 | } | |
271 | ||
e45a941d AB |
272 | static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif, |
273 | enum iwl_dbgfs_bf_mask param, int value) | |
274 | { | |
275 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
276 | struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; | |
277 | ||
278 | dbgfs_bf->mask |= param; | |
279 | ||
280 | switch (param) { | |
281 | case MVM_DEBUGFS_BF_ENERGY_DELTA: | |
282 | dbgfs_bf->bf_energy_delta = value; | |
283 | break; | |
284 | case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA: | |
285 | dbgfs_bf->bf_roaming_energy_delta = value; | |
286 | break; | |
287 | case MVM_DEBUGFS_BF_ROAMING_STATE: | |
288 | dbgfs_bf->bf_roaming_state = value; | |
289 | break; | |
290 | case MVM_DEBUGFS_BF_TEMP_THRESHOLD: | |
291 | dbgfs_bf->bf_temp_threshold = value; | |
292 | break; | |
293 | case MVM_DEBUGFS_BF_TEMP_FAST_FILTER: | |
294 | dbgfs_bf->bf_temp_fast_filter = value; | |
295 | break; | |
296 | case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER: | |
297 | dbgfs_bf->bf_temp_slow_filter = value; | |
298 | break; | |
299 | case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER: | |
300 | dbgfs_bf->bf_enable_beacon_filter = value; | |
301 | break; | |
302 | case MVM_DEBUGFS_BF_DEBUG_FLAG: | |
303 | dbgfs_bf->bf_debug_flag = value; | |
304 | break; | |
305 | case MVM_DEBUGFS_BF_ESCAPE_TIMER: | |
306 | dbgfs_bf->bf_escape_timer = value; | |
307 | break; | |
308 | case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT: | |
309 | dbgfs_bf->ba_enable_beacon_abort = value; | |
310 | break; | |
311 | case MVM_DEBUGFS_BA_ESCAPE_TIMER: | |
312 | dbgfs_bf->ba_escape_timer = value; | |
313 | break; | |
314 | } | |
315 | } | |
316 | ||
317 | static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf, | |
318 | size_t count, loff_t *ppos) | |
319 | { | |
320 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
321 | struct iwl_mvm *mvm = mvmvif->mvm; | |
322 | enum iwl_dbgfs_bf_mask param; | |
323 | int value, ret = 0; | |
324 | ||
325 | if (!strncmp("bf_energy_delta=", buf, 16)) { | |
326 | if (sscanf(buf+16, "%d", &value) != 1) | |
327 | return -EINVAL; | |
328 | if (value < IWL_BF_ENERGY_DELTA_MIN || | |
329 | value > IWL_BF_ENERGY_DELTA_MAX) | |
330 | return -EINVAL; | |
331 | param = MVM_DEBUGFS_BF_ENERGY_DELTA; | |
332 | } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) { | |
333 | if (sscanf(buf+24, "%d", &value) != 1) | |
334 | return -EINVAL; | |
335 | if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN || | |
336 | value > IWL_BF_ROAMING_ENERGY_DELTA_MAX) | |
337 | return -EINVAL; | |
338 | param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA; | |
339 | } else if (!strncmp("bf_roaming_state=", buf, 17)) { | |
340 | if (sscanf(buf+17, "%d", &value) != 1) | |
341 | return -EINVAL; | |
342 | if (value < IWL_BF_ROAMING_STATE_MIN || | |
343 | value > IWL_BF_ROAMING_STATE_MAX) | |
344 | return -EINVAL; | |
345 | param = MVM_DEBUGFS_BF_ROAMING_STATE; | |
346 | } else if (!strncmp("bf_temp_threshold=", buf, 18)) { | |
347 | if (sscanf(buf+18, "%d", &value) != 1) | |
348 | return -EINVAL; | |
349 | if (value < IWL_BF_TEMP_THRESHOLD_MIN || | |
350 | value > IWL_BF_TEMP_THRESHOLD_MAX) | |
351 | return -EINVAL; | |
352 | param = MVM_DEBUGFS_BF_TEMP_THRESHOLD; | |
353 | } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) { | |
354 | if (sscanf(buf+20, "%d", &value) != 1) | |
355 | return -EINVAL; | |
356 | if (value < IWL_BF_TEMP_FAST_FILTER_MIN || | |
357 | value > IWL_BF_TEMP_FAST_FILTER_MAX) | |
358 | return -EINVAL; | |
359 | param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER; | |
360 | } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) { | |
361 | if (sscanf(buf+20, "%d", &value) != 1) | |
362 | return -EINVAL; | |
363 | if (value < IWL_BF_TEMP_SLOW_FILTER_MIN || | |
364 | value > IWL_BF_TEMP_SLOW_FILTER_MAX) | |
365 | return -EINVAL; | |
366 | param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER; | |
367 | } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) { | |
368 | if (sscanf(buf+24, "%d", &value) != 1) | |
369 | return -EINVAL; | |
370 | if (value < 0 || value > 1) | |
371 | return -EINVAL; | |
372 | param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER; | |
373 | } else if (!strncmp("bf_debug_flag=", buf, 14)) { | |
374 | if (sscanf(buf+14, "%d", &value) != 1) | |
375 | return -EINVAL; | |
376 | if (value < 0 || value > 1) | |
377 | return -EINVAL; | |
378 | param = MVM_DEBUGFS_BF_DEBUG_FLAG; | |
379 | } else if (!strncmp("bf_escape_timer=", buf, 16)) { | |
380 | if (sscanf(buf+16, "%d", &value) != 1) | |
381 | return -EINVAL; | |
382 | if (value < IWL_BF_ESCAPE_TIMER_MIN || | |
383 | value > IWL_BF_ESCAPE_TIMER_MAX) | |
384 | return -EINVAL; | |
385 | param = MVM_DEBUGFS_BF_ESCAPE_TIMER; | |
386 | } else if (!strncmp("ba_escape_timer=", buf, 16)) { | |
387 | if (sscanf(buf+16, "%d", &value) != 1) | |
388 | return -EINVAL; | |
389 | if (value < IWL_BA_ESCAPE_TIMER_MIN || | |
390 | value > IWL_BA_ESCAPE_TIMER_MAX) | |
391 | return -EINVAL; | |
392 | param = MVM_DEBUGFS_BA_ESCAPE_TIMER; | |
393 | } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) { | |
394 | if (sscanf(buf+23, "%d", &value) != 1) | |
395 | return -EINVAL; | |
396 | if (value < 0 || value > 1) | |
397 | return -EINVAL; | |
398 | param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT; | |
399 | } else { | |
400 | return -EINVAL; | |
401 | } | |
402 | ||
403 | mutex_lock(&mvm->mutex); | |
404 | iwl_dbgfs_update_bf(vif, param, value); | |
405 | if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) | |
406 | ret = iwl_mvm_disable_beacon_filter(mvm, vif); | |
407 | else | |
408 | ret = iwl_mvm_enable_beacon_filter(mvm, vif); | |
409 | mutex_unlock(&mvm->mutex); | |
410 | ||
411 | return ret ?: count; | |
412 | } | |
413 | ||
414 | static ssize_t iwl_dbgfs_bf_params_read(struct file *file, | |
415 | char __user *user_buf, | |
416 | size_t count, loff_t *ppos) | |
417 | { | |
418 | struct ieee80211_vif *vif = file->private_data; | |
419 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
420 | char buf[256]; | |
421 | int pos = 0; | |
422 | const size_t bufsz = sizeof(buf); | |
423 | struct iwl_beacon_filter_cmd cmd = { | |
424 | IWL_BF_CMD_CONFIG_DEFAULTS, | |
425 | .bf_enable_beacon_filter = | |
426 | cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT), | |
427 | .ba_enable_beacon_abort = | |
428 | cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT), | |
429 | }; | |
430 | ||
431 | iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd); | |
432 | if (mvmvif->bf_data.bf_enabled) | |
433 | cmd.bf_enable_beacon_filter = cpu_to_le32(1); | |
434 | else | |
435 | cmd.bf_enable_beacon_filter = 0; | |
436 | ||
437 | pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n", | |
438 | le32_to_cpu(cmd.bf_energy_delta)); | |
439 | pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n", | |
440 | le32_to_cpu(cmd.bf_roaming_energy_delta)); | |
441 | pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n", | |
442 | le32_to_cpu(cmd.bf_roaming_state)); | |
443 | pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n", | |
444 | le32_to_cpu(cmd.bf_temp_threshold)); | |
445 | pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n", | |
446 | le32_to_cpu(cmd.bf_temp_fast_filter)); | |
447 | pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n", | |
448 | le32_to_cpu(cmd.bf_temp_slow_filter)); | |
449 | pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n", | |
450 | le32_to_cpu(cmd.bf_enable_beacon_filter)); | |
451 | pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n", | |
452 | le32_to_cpu(cmd.bf_debug_flag)); | |
453 | pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n", | |
454 | le32_to_cpu(cmd.bf_escape_timer)); | |
455 | pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n", | |
456 | le32_to_cpu(cmd.ba_escape_timer)); | |
457 | pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n", | |
458 | le32_to_cpu(cmd.ba_enable_beacon_abort)); | |
459 | ||
460 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
461 | } | |
462 | ||
a21d7bcb JB |
463 | static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf, |
464 | size_t count, loff_t *ppos) | |
465 | { | |
466 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
467 | struct iwl_mvm *mvm = mvmvif->mvm; | |
468 | u8 value; | |
469 | int ret; | |
470 | ||
471 | ret = kstrtou8(buf, 0, &value); | |
472 | if (ret) | |
473 | return ret; | |
474 | if (value > 1) | |
475 | return -EINVAL; | |
476 | ||
477 | mutex_lock(&mvm->mutex); | |
478 | iwl_mvm_update_low_latency(mvm, vif, value); | |
479 | mutex_unlock(&mvm->mutex); | |
480 | ||
481 | return count; | |
482 | } | |
483 | ||
484 | static ssize_t iwl_dbgfs_low_latency_read(struct file *file, | |
485 | char __user *user_buf, | |
486 | size_t count, loff_t *ppos) | |
487 | { | |
488 | struct ieee80211_vif *vif = file->private_data; | |
489 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
490 | char buf[3]; | |
491 | ||
492 | buf[0] = mvmvif->low_latency ? '1' : '0'; | |
493 | buf[1] = '\n'; | |
494 | buf[2] = '\0'; | |
495 | return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf)); | |
496 | } | |
497 | ||
e45a941d AB |
498 | #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ |
499 | _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) | |
500 | #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ | |
501 | _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) | |
820a1a50 JB |
502 | #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \ |
503 | if (!debugfs_create_file(#name, mode, parent, vif, \ | |
504 | &iwl_dbgfs_##name##_ops)) \ | |
505 | goto err; \ | |
506 | } while (0) | |
507 | ||
508 | MVM_DEBUGFS_READ_FILE_OPS(mac_params); | |
e45a941d AB |
509 | MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32); |
510 | MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256); | |
a21d7bcb | 511 | MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10); |
820a1a50 JB |
512 | |
513 | void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
514 | { | |
515 | struct dentry *dbgfs_dir = vif->debugfs_dir; | |
516 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
517 | char buf[100]; | |
518 | ||
519 | /* | |
520 | * Check if debugfs directory already exist before creating it. | |
521 | * This may happen when, for example, resetting hw or suspend-resume | |
522 | */ | |
523 | if (!dbgfs_dir || mvmvif->dbgfs_dir) | |
524 | return; | |
525 | ||
526 | mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir); | |
7f09d704 | 527 | mvmvif->mvm = mvm; |
820a1a50 JB |
528 | |
529 | if (!mvmvif->dbgfs_dir) { | |
530 | IWL_ERR(mvm, "Failed to create debugfs directory under %s\n", | |
531 | dbgfs_dir->d_name.name); | |
532 | return; | |
533 | } | |
534 | ||
e45a941d AB |
535 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM && |
536 | ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) || | |
537 | (vif->type == NL80211_IFTYPE_STATION && vif->p2p && | |
538 | mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS))) | |
539 | MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR | | |
540 | S_IRUSR); | |
541 | ||
820a1a50 JB |
542 | MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, |
543 | S_IRUSR); | |
a21d7bcb JB |
544 | MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, |
545 | S_IRUSR | S_IWUSR); | |
820a1a50 | 546 | |
e45a941d AB |
547 | if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && |
548 | mvmvif == mvm->bf_allowed_vif) | |
549 | MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, | |
550 | S_IRUSR | S_IWUSR); | |
551 | ||
820a1a50 JB |
552 | /* |
553 | * Create symlink for convenience pointing to interface specific | |
554 | * debugfs entries for the driver. For example, under | |
555 | * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/ | |
556 | * find | |
557 | * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/ | |
558 | */ | |
559 | snprintf(buf, 100, "../../../%s/%s/%s/%s", | |
560 | dbgfs_dir->d_parent->d_parent->d_name.name, | |
561 | dbgfs_dir->d_parent->d_name.name, | |
562 | dbgfs_dir->d_name.name, | |
563 | mvmvif->dbgfs_dir->d_name.name); | |
564 | ||
565 | mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, | |
566 | mvm->debugfs_dir, buf); | |
567 | if (!mvmvif->dbgfs_slink) | |
568 | IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n", | |
569 | dbgfs_dir->d_name.name); | |
570 | return; | |
571 | err: | |
572 | IWL_ERR(mvm, "Can't create debugfs entity\n"); | |
573 | } | |
574 | ||
575 | void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
576 | { | |
577 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
578 | ||
579 | debugfs_remove(mvmvif->dbgfs_slink); | |
580 | mvmvif->dbgfs_slink = NULL; | |
581 | ||
582 | debugfs_remove_recursive(mvmvif->dbgfs_dir); | |
583 | mvmvif->dbgfs_dir = NULL; | |
584 | } |