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iwlwifi: pcie: restart the driver when a command times out
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
CommitLineData
8ca151b5
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 *
8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 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 *
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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 "sta.h"
65#include "iwl-io.h"
66
67struct iwl_dbgfs_mvm_ctx {
68 struct iwl_mvm *mvm;
69 struct ieee80211_vif *vif;
70};
71
8ca151b5
JB		 72static ssize_t iwl_dbgfs_tx_flush_write(struct file *file,
73 const char __user *user_buf,
74 size_t count, loff_t *ppos)
75{
76 struct iwl_mvm *mvm = file->private_data;
77
78 char buf[16];
79 int buf_size, ret;
80 u32 scd_q_msk;
81
82 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
83 return -EIO;
84
85 memset(buf, 0, sizeof(buf));
86 buf_size = min(count, sizeof(buf) - 1);
87 if (copy_from_user(buf, user_buf, buf_size))
88 return -EFAULT;
89
90 if (sscanf(buf, "%x", &scd_q_msk) != 1)
91 return -EINVAL;
92
93 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
94
95 mutex_lock(&mvm->mutex);
96 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
97 mutex_unlock(&mvm->mutex);
98
99 return ret;
100}
101
102static ssize_t iwl_dbgfs_sta_drain_write(struct file *file,
103 const char __user *user_buf,
104 size_t count, loff_t *ppos)
105{
106 struct iwl_mvm *mvm = file->private_data;
107 struct ieee80211_sta *sta;
108
109 char buf[8];
110 int buf_size, sta_id, drain, ret;
111
112 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
113 return -EIO;
114
115 memset(buf, 0, sizeof(buf));
116 buf_size = min(count, sizeof(buf) - 1);
117 if (copy_from_user(buf, user_buf, buf_size))
118 return -EFAULT;
119
120 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
121 return -EINVAL;
122
123 mutex_lock(&mvm->mutex);
124
125 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
126 lockdep_is_held(&mvm->mutex));
127 if (IS_ERR_OR_NULL(sta))
128 ret = -ENOENT;
129 else
130 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
131 count;
132
133 mutex_unlock(&mvm->mutex);
134
135 return ret;
136}
137
138static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
139 size_t count, loff_t *ppos)
140{
141 struct iwl_mvm *mvm = file->private_data;
142 const struct fw_img *img;
143 int ofs, len, pos = 0;
144 size_t bufsz, ret;
145 char *buf;
146 u8 *ptr;
147
60191d99
JB		 148 if (!mvm->ucode_loaded)
149 return -EINVAL;
150
8ca151b5
JB		 151 /* default is to dump the entire data segment */
152 if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
8ca151b5 153 img = &mvm->fw->img[mvm->cur_ucode];
60191d99
JB		 154 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
155 len = img->sec[IWL_UCODE_SECTION_DATA].len;
156 } else {
157 ofs = mvm->dbgfs_sram_offset;
158 len = mvm->dbgfs_sram_len;
8ca151b5 159 }
8ca151b5
JB		 160
161 bufsz = len * 4 + 256;
162 buf = kzalloc(bufsz, GFP_KERNEL);
163 if (!buf)
164 return -ENOMEM;
165
166 ptr = kzalloc(len, GFP_KERNEL);
167 if (!ptr) {
168 kfree(buf);
169 return -ENOMEM;
170 }
171
172 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
60191d99 173 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
8ca151b5 174
60191d99 175 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
8ca151b5
JB		 176 for (ofs = 0; ofs < len; ofs += 16) {
177 pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
178 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
179 bufsz - pos, false);
180 pos += strlen(buf + pos);
181 if (bufsz - pos > 0)
182 buf[pos++] = '\n';
183 }
184
185 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
186
187 kfree(buf);
188 kfree(ptr);
189
190 return ret;
191}
192
193static ssize_t iwl_dbgfs_sram_write(struct file *file,
194 const char __user *user_buf, size_t count,
195 loff_t *ppos)
196{
197 struct iwl_mvm *mvm = file->private_data;
198 char buf[64];
199 int buf_size;
200 u32 offset, len;
201
202 memset(buf, 0, sizeof(buf));
203 buf_size = min(count, sizeof(buf) - 1);
204 if (copy_from_user(buf, user_buf, buf_size))
205 return -EFAULT;
206
207 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
208 if ((offset & 0x3) || (len & 0x3))
209 return -EINVAL;
210 mvm->dbgfs_sram_offset = offset;
211 mvm->dbgfs_sram_len = len;
212 } else {
213 mvm->dbgfs_sram_offset = 0;
214 mvm->dbgfs_sram_len = 0;
215 }
216
217 return count;
218}
219
220static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
221 size_t count, loff_t *ppos)
222{
223 struct iwl_mvm *mvm = file->private_data;
224 struct ieee80211_sta *sta;
225 char buf[400];
226 int i, pos = 0, bufsz = sizeof(buf);
227
228 mutex_lock(&mvm->mutex);
229
230 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
231 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
232 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
233 lockdep_is_held(&mvm->mutex));
234 if (!sta)
235 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
236 else if (IS_ERR(sta))
237 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
238 PTR_ERR(sta));
239 else
240 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
241 sta->addr);
242 }
243
244 mutex_unlock(&mvm->mutex);
245
246 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
247}
248
249static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file,
250 const char __user *user_buf,
251 size_t count, loff_t *ppos)
252{
253 struct iwl_mvm *mvm = file->private_data;
254 char buf[8] = {};
255 int allow;
256
257 if (!mvm->ucode_loaded)
258 return -EIO;
259
0e9d84ea
DH		 260 count = min_t(size_t, count, sizeof(buf) - 1);
261 if (copy_from_user(buf, user_buf, count))
8ca151b5
JB		 262 return -EFAULT;
263
264 if (sscanf(buf, "%d", &allow) != 1)
265 return -EINVAL;
266
267 IWL_DEBUG_POWER(mvm, "%s device power down\n",
268 allow ? "allow" : "prevent");
269
270 /*
271 * TODO: Send REPLY_DEBUG_CMD (0xf0) when FW support it
272 */
273
274 return count;
275}
276
277static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
278 const char __user *user_buf,
279 size_t count, loff_t *ppos)
280{
281 struct iwl_mvm *mvm = file->private_data;
282 char buf[8] = {};
283 int allow;
284
0e9d84ea
DH		 285 count = min_t(size_t, count, sizeof(buf) - 1);
286 if (copy_from_user(buf, user_buf, count))
8ca151b5
JB		 287 return -EFAULT;
288
289 if (sscanf(buf, "%d", &allow) != 1)
290 return -EINVAL;
291
292 IWL_DEBUG_POWER(mvm, "%s device power down in d3\n",
293 allow ? "allow" : "prevent");
294
295 /*
296 * TODO: When WoWLAN FW alive notification happens, driver will send
297 * REPLY_DEBUG_CMD setting power_down_allow flag according to
298 * mvm->prevent_power_down_d3
299 */
300 mvm->prevent_power_down_d3 = !allow;
301
302 return count;
303}
304
b571a697
AB		 305static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
306 struct ieee80211_vif *vif,
307 enum iwl_dbgfs_pm_mask param, int val)
308{
309 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
310 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
311
312 dbgfs_pm->mask |= param;
313
314 switch (param) {
315 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
316 struct ieee80211_hw *hw = mvm->hw;
317 int dtimper = hw->conf.ps_dtim_period ?: 1;
318 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
319
320 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
321 if (val * MSEC_PER_SEC < 3 * dtimper_msec) {
322 IWL_WARN(mvm,
323 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
324 val * MSEC_PER_SEC, 3 * dtimper_msec);
325 }
326 dbgfs_pm->keep_alive_seconds = val;
327 break;
328 }
329 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
330 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
331 val ? "enabled" : "disabled");
332 dbgfs_pm->skip_over_dtim = val;
333 break;
334 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
335 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
336 dbgfs_pm->skip_dtim_periods = val;
337 break;
338 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
339 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
340 dbgfs_pm->rx_data_timeout = val;
341 break;
342 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
343 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
344 dbgfs_pm->tx_data_timeout = val;
345 break;
346 case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
347 IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
348 dbgfs_pm->disable_power_off = val;
bd4ace2a
AB		 349 case MVM_DEBUGFS_PM_LPRX_ENA:
350 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
351 dbgfs_pm->lprx_ena = val;
352 break;
353 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
354 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
355 dbgfs_pm->lprx_rssi_threshold = val;
b571a697 356 break;
89716344
AB		 357 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
358 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
359 dbgfs_pm->snooze_ena = val;
360 break;
b571a697
AB		 361 }
362}
363
364static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
365 const char __user *user_buf,
366 size_t count, loff_t *ppos)
367{
368 struct ieee80211_vif *vif = file->private_data;
369 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
370 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
371 enum iwl_dbgfs_pm_mask param;
372 char buf[32] = {};
373 int val;
374 int ret;
375
0e9d84ea
DH		 376 count = min_t(size_t, count, sizeof(buf) - 1);
377 if (copy_from_user(buf, user_buf, count))
b571a697
AB		 378 return -EFAULT;
379
380 if (!strncmp("keep_alive=", buf, 11)) {
381 if (sscanf(buf + 11, "%d", &val) != 1)
382 return -EINVAL;
383 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
384 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
385 if (sscanf(buf + 15, "%d", &val) != 1)
386 return -EINVAL;
387 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
388 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
389 if (sscanf(buf + 18, "%d", &val) != 1)
390 return -EINVAL;
391 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
392 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
393 if (sscanf(buf + 16, "%d", &val) != 1)
394 return -EINVAL;
395 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
396 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
397 if (sscanf(buf + 16, "%d", &val) != 1)
398 return -EINVAL;
399 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
400 } else if (!strncmp("disable_power_off=", buf, 18)) {
401 if (sscanf(buf + 18, "%d", &val) != 1)
402 return -EINVAL;
403 param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
bd4ace2a
AB		 404 } else if (!strncmp("lprx=", buf, 5)) {
405 if (sscanf(buf + 5, "%d", &val) != 1)
406 return -EINVAL;
407 param = MVM_DEBUGFS_PM_LPRX_ENA;
408 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
409 if (sscanf(buf + 20, "%d", &val) != 1)
410 return -EINVAL;
411 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
412 POWER_LPRX_RSSI_THRESHOLD_MIN)
413 return -EINVAL;
414 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
89716344
AB		 415 } else if (!strncmp("snooze_enable=", buf, 14)) {
416 if (sscanf(buf + 14, "%d", &val) != 1)
417 return -EINVAL;
418 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
b571a697
AB		 419 } else {
420 return -EINVAL;
421 }
422
423 mutex_lock(&mvm->mutex);
424 iwl_dbgfs_update_pm(mvm, vif, param, val);
425 ret = iwl_mvm_power_update_mode(mvm, vif);
426 mutex_unlock(&mvm->mutex);
427
428 return ret ?: count;
429}
430
431static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
432 char __user *user_buf,
433 size_t count, loff_t *ppos)
434{
435 struct ieee80211_vif *vif = file->private_data;
436 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
437 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
e3c588ec 438 char buf[512];
b571a697 439 int bufsz = sizeof(buf);
e811ada7 440 int pos;
b571a697 441
e811ada7 442 pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz);
b571a697
AB		 443
444 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
445}
446
63494374
JB		 447static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
448 char __user *user_buf,
449 size_t count, loff_t *ppos)
450{
451 struct ieee80211_vif *vif = file->private_data;
452 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
453 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
454 u8 ap_sta_id;
455 struct ieee80211_chanctx_conf *chanctx_conf;
456 char buf[512];
457 int bufsz = sizeof(buf);
458 int pos = 0;
459 int i;
460
461 mutex_lock(&mvm->mutex);
462
463 ap_sta_id = mvmvif->ap_sta_id;
464
465 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
466 mvmvif->id, mvmvif->color);
467 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
468 vif->bss_conf.bssid);
469 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
470 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) {
471 pos += scnprintf(buf+pos, bufsz-pos,
472 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
473 i, mvmvif->queue_params[i].txop,
474 mvmvif->queue_params[i].cw_min,
475 mvmvif->queue_params[i].cw_max,
476 mvmvif->queue_params[i].aifs,
477 mvmvif->queue_params[i].uapsd);
478 }
479
2b76ef13
EG		 480 if (vif->type == NL80211_IFTYPE_STATION &&
481 ap_sta_id != IWL_MVM_STATION_COUNT) {
482 struct ieee80211_sta *sta;
483 struct iwl_mvm_sta *mvm_sta;
484
485 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
486 lockdep_is_held(&mvm->mutex));
487 mvm_sta = (void *)sta->drv_priv;
488 pos += scnprintf(buf+pos, bufsz-pos,
489 "ap_sta_id %d - reduced Tx power %d\n",
490 ap_sta_id, mvm_sta->bt_reduced_txpower);
491 }
63494374
JB		 492
493 rcu_read_lock();
494 chanctx_conf = rcu_dereference(vif->chanctx_conf);
495 if (chanctx_conf) {
496 pos += scnprintf(buf+pos, bufsz-pos,
497 "idle rx chains %d, active rx chains: %d\n",
498 chanctx_conf->rx_chains_static,
499 chanctx_conf->rx_chains_dynamic);
500 }
501 rcu_read_unlock();
502
503 mutex_unlock(&mvm->mutex);
504
505 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
506}
507
10942342
EG		 508#define BT_MBOX_MSG(_notif, _num, _field) \
509 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
510 >> BT_MBOX##_num##_##_field##_POS)
511
512
513#define BT_MBOX_PRINT(_num, _field, _end) \
514 pos += scnprintf(buf + pos, bufsz - pos, \
515 "\t%s: %d%s", \
516 #_field, \
517 BT_MBOX_MSG(notif, _num, _field), \
518 true ? "\n" : ", ");
519
520static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
521 size_t count, loff_t *ppos)
522{
523 struct iwl_mvm *mvm = file->private_data;
524 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
525 char *buf;
526 int ret, pos = 0, bufsz = sizeof(char) * 1024;
527
528 buf = kmalloc(bufsz, GFP_KERNEL);
529 if (!buf)
530 return -ENOMEM;
531
532 mutex_lock(&mvm->mutex);
533
534 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
535
536 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
537 BT_MBOX_PRINT(0, LE_PROF1, false);
538 BT_MBOX_PRINT(0, LE_PROF2, false);
539 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
540 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
541 BT_MBOX_PRINT(0, INBAND_S, false);
542 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
543 BT_MBOX_PRINT(0, LE_SCAN, false);
544 BT_MBOX_PRINT(0, LE_ADV, false);
545 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
546 BT_MBOX_PRINT(0, OPEN_CON_1, true);
547
548 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
549
550 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
551 BT_MBOX_PRINT(1, IP_SR, false);
552 BT_MBOX_PRINT(1, LE_MSTR, false);
553 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
554 BT_MBOX_PRINT(1, MSG_TYPE, false);
555 BT_MBOX_PRINT(1, SSN, true);
556
557 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
558
559 BT_MBOX_PRINT(2, SNIFF_ACT, false);
560 BT_MBOX_PRINT(2, PAG, false);
561 BT_MBOX_PRINT(2, INQUIRY, false);
562 BT_MBOX_PRINT(2, CONN, false);
563 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
564 BT_MBOX_PRINT(2, DISC, false);
565 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
566 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
567 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
568 BT_MBOX_PRINT(2, SCO_DURATION, true);
569
570 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
571
572 BT_MBOX_PRINT(3, SCO_STATE, false);
573 BT_MBOX_PRINT(3, SNIFF_STATE, false);
574 BT_MBOX_PRINT(3, A2DP_STATE, false);
575 BT_MBOX_PRINT(3, ACL_STATE, false);
576 BT_MBOX_PRINT(3, MSTR_STATE, false);
577 BT_MBOX_PRINT(3, OBX_STATE, false);
578 BT_MBOX_PRINT(3, OPEN_CON_2, false);
579 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
580 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
581 BT_MBOX_PRINT(3, INBAND_P, false);
582 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
583 BT_MBOX_PRINT(3, SSN_2, false);
584 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
585
586 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
2de13cae 587 notif->bt_status);
10942342 588 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
2de13cae 589 notif->bt_open_conn);
10942342 590 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
2de13cae 591 notif->bt_traffic_load);
10942342 592 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
2de13cae 593 notif->bt_agg_traffic_load);
10942342 594 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
2de13cae
EG		 595 notif->bt_ci_compliance);
596 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
597 le32_to_cpu(notif->primary_ch_lut));
598 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
599 le32_to_cpu(notif->secondary_ch_lut));
600 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
601 le32_to_cpu(notif->bt_activity_grading));
10942342
EG		 602
603 mutex_unlock(&mvm->mutex);
604
605 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
606 kfree(buf);
607
608 return ret;
609}
610#undef BT_MBOX_PRINT
611
2de13cae
EG		 612static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
613 size_t count, loff_t *ppos)
614{
615 struct iwl_mvm *mvm = file->private_data;
616 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
617 char buf[256];
618 int bufsz = sizeof(buf);
619 int pos = 0;
620
621 mutex_lock(&mvm->mutex);
622
623 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
624 pos += scnprintf(buf+pos, bufsz-pos,
625 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
626 le64_to_cpu(cmd->bt_primary_ci),
627 !!cmd->co_run_bw_primary);
628 pos += scnprintf(buf+pos, bufsz-pos,
629 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
630 le64_to_cpu(cmd->bt_secondary_ci),
631 !!cmd->co_run_bw_secondary);
632
633 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
634 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
635 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
636 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
637 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
638
639 mutex_unlock(&mvm->mutex);
640
641 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
642}
643
3848ab66
MG		 644#define PRINT_STATS_LE32(_str, _val) \
645 pos += scnprintf(buf + pos, bufsz - pos, \
646 fmt_table, _str, \
647 le32_to_cpu(_val))
648
649static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
650 char __user *user_buf, size_t count,
651 loff_t *ppos)
652{
653 struct iwl_mvm *mvm = file->private_data;
654 static const char *fmt_table = "\t%-30s %10u\n";
655 static const char *fmt_header = "%-32s\n";
656 int pos = 0;
657 char *buf;
658 int ret;
659 int bufsz = sizeof(struct mvm_statistics_rx_phy) * 20 +
660 sizeof(struct mvm_statistics_rx_non_phy) * 10 +
661 sizeof(struct mvm_statistics_rx_ht_phy) * 10 + 200;
662 struct mvm_statistics_rx_phy *ofdm;
663 struct mvm_statistics_rx_phy *cck;
664 struct mvm_statistics_rx_non_phy *general;
665 struct mvm_statistics_rx_ht_phy *ht;
666
667 buf = kzalloc(bufsz, GFP_KERNEL);
668 if (!buf)
669 return -ENOMEM;
670
671 mutex_lock(&mvm->mutex);
672
673 ofdm = &mvm->rx_stats.ofdm;
674 cck = &mvm->rx_stats.cck;
675 general = &mvm->rx_stats.general;
676 ht = &mvm->rx_stats.ofdm_ht;
677
678 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
679 "Statistics_Rx - OFDM");
680 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
681 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
682 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
683 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
684 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
685 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
686 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
687 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
688 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
689 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
690 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
691 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
692 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
693 ofdm->rxe_frame_limit_overrun);
694 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
695 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
696 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
697 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
698 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
699 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
700 PRINT_STATS_LE32("reserved", ofdm->reserved);
701
702 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
703 "Statistics_Rx - CCK");
704 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
705 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
706 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
707 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
708 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
709 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
710 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
711 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
712 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
713 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
714 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
715 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
716 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
717 cck->rxe_frame_limit_overrun);
718 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
719 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
720 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
721 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
722 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
723 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
724 PRINT_STATS_LE32("reserved", cck->reserved);
725
726 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
727 "Statistics_Rx - GENERAL");
728 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
729 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
730 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
731 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
732 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
733 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
734 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
735 PRINT_STATS_LE32("adc_rx_saturation_time",
736 general->adc_rx_saturation_time);
737 PRINT_STATS_LE32("ina_detection_search_time",
738 general->ina_detection_search_time);
739 PRINT_STATS_LE32("beacon_silence_rssi_a",
740 general->beacon_silence_rssi_a);
741 PRINT_STATS_LE32("beacon_silence_rssi_b",
742 general->beacon_silence_rssi_b);
743 PRINT_STATS_LE32("beacon_silence_rssi_c",
744 general->beacon_silence_rssi_c);
745 PRINT_STATS_LE32("interference_data_flag",
746 general->interference_data_flag);
747 PRINT_STATS_LE32("channel_load", general->channel_load);
748 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
749 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
750 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
751 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
752 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
753 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
754 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
755 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
756 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
757
758 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
759 "Statistics_Rx - HT");
760 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
761 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
762 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
763 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
764 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
765 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
766 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
767 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
768 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
769 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
770
771 mutex_unlock(&mvm->mutex);
772
773 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
774 kfree(buf);
775
776 return ret;
777}
778#undef PRINT_STAT_LE32
779
490953ac
EG		 780static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
781 const char __user *user_buf,
782 size_t count, loff_t *ppos)
783{
784 struct iwl_mvm *mvm = file->private_data;
490953ac
EG		 785 int ret;
786
490953ac
EG		 787 mutex_lock(&mvm->mutex);
788
291aa7c4
EH		 789 /* allow one more restart that we're provoking here */
790 if (mvm->restart_fw >= 0)
791 mvm->restart_fw++;
792
490953ac
EG		 793 /* take the return value to make compiler happy - it will fail anyway */
794 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
795
796 mutex_unlock(&mvm->mutex);
797
490953ac
EG		 798 return count;
799}
800
91b05d10
OG		 801static ssize_t
802iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
803 char __user *user_buf,
804 size_t count, loff_t *ppos)
805{
806 struct iwl_mvm *mvm = file->private_data;
807 int pos = 0;
808 char buf[32];
809 const size_t bufsz = sizeof(buf);
810
811 /* print which antennas were set for the scan command by the user */
812 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
813 if (mvm->scan_rx_ant & ANT_A)
814 pos += scnprintf(buf + pos, bufsz - pos, "A");
815 if (mvm->scan_rx_ant & ANT_B)
816 pos += scnprintf(buf + pos, bufsz - pos, "B");
817 if (mvm->scan_rx_ant & ANT_C)
818 pos += scnprintf(buf + pos, bufsz - pos, "C");
819 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
820
821 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
822}
823
824static ssize_t
825iwl_dbgfs_scan_ant_rxchain_write(struct file *file,
826 const char __user *user_buf,
827 size_t count, loff_t *ppos)
828{
829 struct iwl_mvm *mvm = file->private_data;
830 char buf[8];
831 int buf_size;
832 u8 scan_rx_ant;
833
834 memset(buf, 0, sizeof(buf));
835 buf_size = min(count, sizeof(buf) - 1);
836
837 /* get the argument from the user and check if it is valid */
838 if (copy_from_user(buf, user_buf, buf_size))
839 return -EFAULT;
840 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
841 return -EINVAL;
842 if (scan_rx_ant > ANT_ABC)
843 return -EINVAL;
844 if (scan_rx_ant & ~iwl_fw_valid_rx_ant(mvm->fw))
845 return -EINVAL;
846
847 /* change the rx antennas for scan command */
848 mvm->scan_rx_ant = scan_rx_ant;
849
850 return count;
851}
852
853
b571a697
AB		 854static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
855 enum iwl_dbgfs_bf_mask param, int value)
856{
857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
858 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
859
860 dbgfs_bf->mask |= param;
861
862 switch (param) {
863 case MVM_DEBUGFS_BF_ENERGY_DELTA:
864 dbgfs_bf->bf_energy_delta = value;
865 break;
866 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
867 dbgfs_bf->bf_roaming_energy_delta = value;
868 break;
869 case MVM_DEBUGFS_BF_ROAMING_STATE:
870 dbgfs_bf->bf_roaming_state = value;
871 break;
5dca7c24
HG		 872 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
873 dbgfs_bf->bf_temp_threshold = value;
874 break;
875 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
876 dbgfs_bf->bf_temp_fast_filter = value;
877 break;
878 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
879 dbgfs_bf->bf_temp_slow_filter = value;
b571a697
AB		 880 break;
881 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
882 dbgfs_bf->bf_enable_beacon_filter = value;
883 break;
884 case MVM_DEBUGFS_BF_DEBUG_FLAG:
885 dbgfs_bf->bf_debug_flag = value;
886 break;
887 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
888 dbgfs_bf->bf_escape_timer = value;
889 break;
890 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
891 dbgfs_bf->ba_enable_beacon_abort = value;
892 break;
893 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
894 dbgfs_bf->ba_escape_timer = value;
895 break;
896 }
897}
898
899static ssize_t iwl_dbgfs_bf_params_write(struct file *file,
900 const char __user *user_buf,
901 size_t count, loff_t *ppos)
902{
903 struct ieee80211_vif *vif = file->private_data;
904 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
905 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
906 enum iwl_dbgfs_bf_mask param;
907 char buf[256];
908 int buf_size;
909 int value;
910 int ret = 0;
911
912 memset(buf, 0, sizeof(buf));
913 buf_size = min(count, sizeof(buf) - 1);
914 if (copy_from_user(buf, user_buf, buf_size))
915 return -EFAULT;
916
917 if (!strncmp("bf_energy_delta=", buf, 16)) {
918 if (sscanf(buf+16, "%d", &value) != 1)
919 return -EINVAL;
920 if (value < IWL_BF_ENERGY_DELTA_MIN ||
921 value > IWL_BF_ENERGY_DELTA_MAX)
922 return -EINVAL;
923 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
924 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
925 if (sscanf(buf+24, "%d", &value) != 1)
926 return -EINVAL;
927 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
928 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
929 return -EINVAL;
930 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
931 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
932 if (sscanf(buf+17, "%d", &value) != 1)
933 return -EINVAL;
934 if (value < IWL_BF_ROAMING_STATE_MIN ||
935 value > IWL_BF_ROAMING_STATE_MAX)
936 return -EINVAL;
937 param = MVM_DEBUGFS_BF_ROAMING_STATE;
5dca7c24
HG		 938 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
939 if (sscanf(buf+18, "%d", &value) != 1)
940 return -EINVAL;
941 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
942 value > IWL_BF_TEMP_THRESHOLD_MAX)
943 return -EINVAL;
944 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
945 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
946 if (sscanf(buf+20, "%d", &value) != 1)
947 return -EINVAL;
948 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
949 value > IWL_BF_TEMP_FAST_FILTER_MAX)
950 return -EINVAL;
951 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
952 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
953 if (sscanf(buf+20, "%d", &value) != 1)
b571a697 954 return -EINVAL;
5dca7c24
HG		 955 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
956 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
b571a697 957 return -EINVAL;
5dca7c24 958 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
b571a697
AB		 959 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
960 if (sscanf(buf+24, "%d", &value) != 1)
961 return -EINVAL;
962 if (value < 0 || value > 1)
963 return -EINVAL;
964 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
965 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
966 if (sscanf(buf+14, "%d", &value) != 1)
967 return -EINVAL;
968 if (value < 0 || value > 1)
969 return -EINVAL;
970 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
971 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
972 if (sscanf(buf+16, "%d", &value) != 1)
973 return -EINVAL;
974 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
975 value > IWL_BF_ESCAPE_TIMER_MAX)
976 return -EINVAL;
977 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
978 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
979 if (sscanf(buf+16, "%d", &value) != 1)
980 return -EINVAL;
981 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
982 value > IWL_BA_ESCAPE_TIMER_MAX)
983 return -EINVAL;
984 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
985 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
986 if (sscanf(buf+23, "%d", &value) != 1)
987 return -EINVAL;
988 if (value < 0 || value > 1)
989 return -EINVAL;
990 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
991 } else {
992 return -EINVAL;
993 }
994
995 mutex_lock(&mvm->mutex);
996 iwl_dbgfs_update_bf(vif, param, value);
997 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
998 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
999 } else {
495191c7 1000 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
b571a697
AB		 1001 }
1002 mutex_unlock(&mvm->mutex);
1003
1004 return ret ?: count;
1005}
1006
1007static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
1008 char __user *user_buf,
1009 size_t count, loff_t *ppos)
1010{
1011 struct ieee80211_vif *vif = file->private_data;
1012 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1013 char buf[256];
1014 int pos = 0;
1015 const size_t bufsz = sizeof(buf);
1016 struct iwl_beacon_filter_cmd cmd = {
5dca7c24
HG		 1017 IWL_BF_CMD_CONFIG_DEFAULTS,
1018 .bf_enable_beacon_filter =
1019 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
1020 .ba_enable_beacon_abort =
1021 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
b571a697
AB		 1022 };
1023
1024 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
a20fd398 1025 if (mvmvif->bf_data.bf_enabled)
5dca7c24 1026 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
b571a697
AB		 1027 else
1028 cmd.bf_enable_beacon_filter = 0;
1029
1030 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
5dca7c24 1031 le32_to_cpu(cmd.bf_energy_delta));
b571a697 1032 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
5dca7c24 1033 le32_to_cpu(cmd.bf_roaming_energy_delta));
b571a697 1034 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
5dca7c24
HG		 1035 le32_to_cpu(cmd.bf_roaming_state));
1036 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
1037 le32_to_cpu(cmd.bf_temp_threshold));
1038 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
1039 le32_to_cpu(cmd.bf_temp_fast_filter));
1040 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
1041 le32_to_cpu(cmd.bf_temp_slow_filter));
b571a697 1042 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
5dca7c24 1043 le32_to_cpu(cmd.bf_enable_beacon_filter));
b571a697 1044 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
5dca7c24 1045 le32_to_cpu(cmd.bf_debug_flag));
b571a697 1046 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
5dca7c24 1047 le32_to_cpu(cmd.bf_escape_timer));
b571a697 1048 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
5dca7c24 1049 le32_to_cpu(cmd.ba_escape_timer));
b571a697 1050 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
5dca7c24 1051 le32_to_cpu(cmd.ba_enable_beacon_abort));
b571a697
AB		 1052
1053 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1054}
1055
afc66bb7
JB		 1056#ifdef CONFIG_PM_SLEEP
1057static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
1058 const char __user *user_buf,
1059 size_t count, loff_t *ppos)
1060{
1061 struct iwl_mvm *mvm = file->private_data;
1062 char buf[8] = {};
1063 int store;
1064
0e9d84ea
DH		 1065 count = min_t(size_t, count, sizeof(buf) - 1);
1066 if (copy_from_user(buf, user_buf, count))
afc66bb7
JB		 1067 return -EFAULT;
1068
1069 if (sscanf(buf, "%d", &store) != 1)
1070 return -EINVAL;
1071
1072 mvm->store_d3_resume_sram = store;
1073
1074 return count;
1075}
1076
1077static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1078 size_t count, loff_t *ppos)
1079{
1080 struct iwl_mvm *mvm = file->private_data;
1081 const struct fw_img *img;
1082 int ofs, len, pos = 0;
1083 size_t bufsz, ret;
1084 char *buf;
1085 u8 *ptr = mvm->d3_resume_sram;
1086
1087 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1088 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1089
1090 bufsz = len * 4 + 256;
1091 buf = kzalloc(bufsz, GFP_KERNEL);
1092 if (!buf)
1093 return -ENOMEM;
1094
1095 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1096 mvm->store_d3_resume_sram ? "en" : "dis");
1097
1098 if (ptr) {
1099 for (ofs = 0; ofs < len; ofs += 16) {
1100 pos += scnprintf(buf + pos, bufsz - pos,
1101 "0x%.4x ", ofs);
1102 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1103 bufsz - pos, false);
1104 pos += strlen(buf + pos);
1105 if (bufsz - pos > 0)
1106 buf[pos++] = '\n';
1107 }
1108 } else {
1109 pos += scnprintf(buf + pos, bufsz - pos,
1110 "(no data captured)\n");
1111 }
1112
1113 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1114
1115 kfree(buf);
1116
1117 return ret;
1118}
1119#endif
1120
8ca151b5
JB		 1121#define MVM_DEBUGFS_READ_FILE_OPS(name) \
1122static const struct file_operations iwl_dbgfs_##name##_ops = { \
1123 .read = iwl_dbgfs_##name##_read, \
ba5295f8 1124 .open = simple_open, \
8ca151b5
JB		 1125 .llseek = generic_file_llseek, \
1126}
1127
1128#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name) \
1129static const struct file_operations iwl_dbgfs_##name##_ops = { \
1130 .write = iwl_dbgfs_##name##_write, \
1131 .read = iwl_dbgfs_##name##_read, \
ba5295f8 1132 .open = simple_open, \
8ca151b5
JB		 1133 .llseek = generic_file_llseek, \
1134};
1135
1136#define MVM_DEBUGFS_WRITE_FILE_OPS(name) \
1137static const struct file_operations iwl_dbgfs_##name##_ops = { \
1138 .write = iwl_dbgfs_##name##_write, \
ba5295f8 1139 .open = simple_open, \
8ca151b5
JB		 1140 .llseek = generic_file_llseek, \
1141};
1142
1143#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \
1144 if (!debugfs_create_file(#name, mode, parent, mvm, \
1145 &iwl_dbgfs_##name##_ops)) \
1146 goto err; \
1147 } while (0)
1148
1149#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
1150 if (!debugfs_create_file(#name, mode, parent, vif, \
1151 &iwl_dbgfs_##name##_ops)) \
1152 goto err; \
1153 } while (0)
1154
1155/* Device wide debugfs entries */
1156MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
1157MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
1158MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
1159MVM_DEBUGFS_READ_FILE_OPS(stations);
10942342 1160MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
2de13cae 1161MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
8ca151b5
JB		 1162MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
1163MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
3848ab66 1164MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
490953ac 1165MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
91b05d10
OG		 1166MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain);
1167
afc66bb7
JB		 1168#ifdef CONFIG_PM_SLEEP
1169MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
1170#endif
8ca151b5 1171
63494374
JB		 1172/* Interface specific debugfs entries */
1173MVM_DEBUGFS_READ_FILE_OPS(mac_params);
b571a697
AB		 1174MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params);
1175MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params);
63494374 1176
8ca151b5
JB		 1177int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1178{
1179 char buf[100];
1180
1181 mvm->debugfs_dir = dbgfs_dir;
1182
1183 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1184 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1185 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1186 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
10942342 1187 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
2de13cae 1188 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
8ca151b5
JB		 1189 MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
1190 MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
3848ab66 1191 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
490953ac 1192 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
91b05d10
OG		 1193 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1194 S_IWUSR | S_IRUSR);
afc66bb7
JB		 1195#ifdef CONFIG_PM_SLEEP
1196 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
debff618 1197 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
b0114714
JB		 1198 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1199 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1200 goto err;
afc66bb7 1201#endif
8ca151b5
JB		 1202
1203 /*
1204 * Create a symlink with mac80211. It will be removed when mac80211
1205 * exists (before the opmode exists which removes the target.)
1206 */
1207 snprintf(buf, 100, "../../%s/%s",
1208 dbgfs_dir->d_parent->d_parent->d_name.name,
1209 dbgfs_dir->d_parent->d_name.name);
1210 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1211 goto err;
1212
1213 return 0;
1214err:
1215 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1216 return -ENOMEM;
1217}
63494374
JB		 1218
1219void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1220{
1221 struct dentry *dbgfs_dir = vif->debugfs_dir;
1222 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1223 char buf[100];
1224
0ecb3763
AB		 1225 /*
1226 * Check if debugfs directory already exist before creating it.
1227 * This may happen when, for example, resetting hw or suspend-resume
1228 */
1229 if (!dbgfs_dir || mvmvif->dbgfs_dir)
63494374
JB		 1230 return;
1231
1232 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
1233 mvmvif->dbgfs_data = mvm;
1234
1235 if (!mvmvif->dbgfs_dir) {
1236 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
1237 dbgfs_dir->d_name.name);
1238 return;
1239 }
1240
b571a697
AB		 1241 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
1242 vif->type == NL80211_IFTYPE_STATION && !vif->p2p)
1243 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
1244 S_IRUSR);
1245
63494374
JB		 1246 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
1247 S_IRUSR);
1248
b571a697
AB		 1249 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1250 mvmvif == mvm->bf_allowed_vif)
1251 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
1252 S_IRUSR | S_IWUSR);
1253
63494374
JB		 1254 /*
1255 * Create symlink for convenience pointing to interface specific
1256 * debugfs entries for the driver. For example, under
1257 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1258 * find
1259 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1260 */
1261 snprintf(buf, 100, "../../../%s/%s/%s/%s",
1262 dbgfs_dir->d_parent->d_parent->d_name.name,
1263 dbgfs_dir->d_parent->d_name.name,
1264 dbgfs_dir->d_name.name,
1265 mvmvif->dbgfs_dir->d_name.name);
1266
1267 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1268 mvm->debugfs_dir, buf);
1269 if (!mvmvif->dbgfs_slink)
1270 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
1271 dbgfs_dir->d_name.name);
1272 return;
1273err:
1274 IWL_ERR(mvm, "Can't create debugfs entity\n");
1275}
1276
1277void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1278{
1279 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1280
1281 debugfs_remove(mvmvif->dbgfs_slink);
1282 mvmvif->dbgfs_slink = NULL;
1283
1284 debugfs_remove_recursive(mvmvif->dbgfs_dir);
1285 mvmvif->dbgfs_dir = NULL;
1286}
Linux kernel - Deliverables
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