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[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
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 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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 *
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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 <linux/vmalloc.h>
66
67 #include "mvm.h"
68 #include "sta.h"
69 #include "iwl-io.h"
70 #include "debugfs.h"
71 #include "iwl-fw-error-dump.h"
72
73 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
74 size_t count, loff_t *ppos)
75 {
76 int ret;
77 u32 scd_q_msk;
78
79 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
80 return -EIO;
81
82 if (sscanf(buf, "%x", &scd_q_msk) != 1)
83 return -EINVAL;
84
85 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
86
87 mutex_lock(&mvm->mutex);
88 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
89 mutex_unlock(&mvm->mutex);
90
91 return ret;
92 }
93
94 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
95 size_t count, loff_t *ppos)
96 {
97 struct iwl_mvm_sta *mvmsta;
98 int sta_id, drain, ret;
99
100 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
101 return -EIO;
102
103 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
104 return -EINVAL;
105 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
106 return -EINVAL;
107 if (drain < 0 || drain > 1)
108 return -EINVAL;
109
110 mutex_lock(&mvm->mutex);
111
112 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
113
114 if (!mvmsta)
115 ret = -ENOENT;
116 else
117 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
118
119 mutex_unlock(&mvm->mutex);
120
121 return ret;
122 }
123
124 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
125 size_t count, loff_t *ppos)
126 {
127 struct iwl_mvm *mvm = file->private_data;
128 const struct fw_img *img;
129 unsigned int ofs, len;
130 size_t ret;
131 u8 *ptr;
132
133 if (!mvm->ucode_loaded)
134 return -EINVAL;
135
136 /* default is to dump the entire data segment */
137 img = &mvm->fw->img[mvm->cur_ucode];
138 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
139 len = img->sec[IWL_UCODE_SECTION_DATA].len;
140
141 if (mvm->dbgfs_sram_len) {
142 ofs = mvm->dbgfs_sram_offset;
143 len = mvm->dbgfs_sram_len;
144 }
145
146 ptr = kzalloc(len, GFP_KERNEL);
147 if (!ptr)
148 return -ENOMEM;
149
150 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
151
152 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
153
154 kfree(ptr);
155
156 return ret;
157 }
158
159 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
160 size_t count, loff_t *ppos)
161 {
162 const struct fw_img *img;
163 u32 offset, len;
164 u32 img_offset, img_len;
165
166 if (!mvm->ucode_loaded)
167 return -EINVAL;
168
169 img = &mvm->fw->img[mvm->cur_ucode];
170 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
171 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
172
173 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
174 if ((offset & 0x3) || (len & 0x3))
175 return -EINVAL;
176
177 if (offset + len > img_offset + img_len)
178 return -EINVAL;
179
180 mvm->dbgfs_sram_offset = offset;
181 mvm->dbgfs_sram_len = len;
182 } else {
183 mvm->dbgfs_sram_offset = 0;
184 mvm->dbgfs_sram_len = 0;
185 }
186
187 return count;
188 }
189
190 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
191 char __user *user_buf,
192 size_t count, loff_t *ppos)
193 {
194 struct iwl_mvm *mvm = file->private_data;
195 char buf[16];
196 int pos;
197
198 if (!mvm->temperature_test)
199 pos = scnprintf(buf , sizeof(buf), "disabled\n");
200 else
201 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
202
203 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
204 }
205
206 /*
207 * Set NIC Temperature
208 * Cause the driver to ignore the actual NIC temperature reported by the FW
209 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
210 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
211 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
212 */
213 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
214 char *buf, size_t count,
215 loff_t *ppos)
216 {
217 int temperature;
218
219 if (!mvm->ucode_loaded && !mvm->temperature_test)
220 return -EIO;
221
222 if (kstrtoint(buf, 10, &temperature))
223 return -EINVAL;
224 /* not a legal temperature */
225 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
226 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
227 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
228 return -EINVAL;
229
230 mutex_lock(&mvm->mutex);
231 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
232 if (!mvm->temperature_test)
233 goto out;
234
235 mvm->temperature_test = false;
236 /* Since we can't read the temp while awake, just set
237 * it to zero until we get the next RX stats from the
238 * firmware.
239 */
240 mvm->temperature = 0;
241 } else {
242 mvm->temperature_test = true;
243 mvm->temperature = temperature;
244 }
245 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
246 mvm->temperature_test ? "En" : "Dis" ,
247 mvm->temperature);
248 /* handle the temperature change */
249 iwl_mvm_tt_handler(mvm);
250
251 out:
252 mutex_unlock(&mvm->mutex);
253
254 return count;
255 }
256
257 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
258 char __user *user_buf,
259 size_t count, loff_t *ppos)
260 {
261 struct iwl_mvm *mvm = file->private_data;
262 char buf[16];
263 int pos, temp;
264
265 if (!mvm->ucode_loaded)
266 return -EIO;
267
268 mutex_lock(&mvm->mutex);
269 temp = iwl_mvm_get_temp(mvm);
270 mutex_unlock(&mvm->mutex);
271
272 if (temp < 0)
273 return temp;
274
275 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
276
277 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
278 }
279
280 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
281 size_t count, loff_t *ppos)
282 {
283 struct iwl_mvm *mvm = file->private_data;
284 struct ieee80211_sta *sta;
285 char buf[400];
286 int i, pos = 0, bufsz = sizeof(buf);
287
288 mutex_lock(&mvm->mutex);
289
290 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
291 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
292 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
293 lockdep_is_held(&mvm->mutex));
294 if (!sta)
295 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
296 else if (IS_ERR(sta))
297 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
298 PTR_ERR(sta));
299 else
300 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
301 sta->addr);
302 }
303
304 mutex_unlock(&mvm->mutex);
305
306 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
307 }
308
309 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
310 char __user *user_buf,
311 size_t count, loff_t *ppos)
312 {
313 struct iwl_mvm *mvm = file->private_data;
314 char buf[64];
315 int bufsz = sizeof(buf);
316 int pos = 0;
317
318 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
319 mvm->disable_power_off);
320 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
321 mvm->disable_power_off_d3);
322
323 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
324 }
325
326 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
327 size_t count, loff_t *ppos)
328 {
329 int ret, val;
330
331 if (!mvm->ucode_loaded)
332 return -EIO;
333
334 if (!strncmp("disable_power_off_d0=", buf, 21)) {
335 if (sscanf(buf + 21, "%d", &val) != 1)
336 return -EINVAL;
337 mvm->disable_power_off = val;
338 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
339 if (sscanf(buf + 21, "%d", &val) != 1)
340 return -EINVAL;
341 mvm->disable_power_off_d3 = val;
342 } else {
343 return -EINVAL;
344 }
345
346 mutex_lock(&mvm->mutex);
347 ret = iwl_mvm_power_update_device(mvm);
348 mutex_unlock(&mvm->mutex);
349
350 return ret ?: count;
351 }
352
353 #define BT_MBOX_MSG(_notif, _num, _field) \
354 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
355 >> BT_MBOX##_num##_##_field##_POS)
356
357
358 #define BT_MBOX_PRINT(_num, _field, _end) \
359 pos += scnprintf(buf + pos, bufsz - pos, \
360 "\t%s: %d%s", \
361 #_field, \
362 BT_MBOX_MSG(notif, _num, _field), \
363 true ? "\n" : ", ");
364
365 static
366 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
367 int pos, int bufsz)
368 {
369 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
370
371 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
372 BT_MBOX_PRINT(0, LE_PROF1, false);
373 BT_MBOX_PRINT(0, LE_PROF2, false);
374 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
375 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
376 BT_MBOX_PRINT(0, INBAND_S, false);
377 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
378 BT_MBOX_PRINT(0, LE_SCAN, false);
379 BT_MBOX_PRINT(0, LE_ADV, false);
380 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
381 BT_MBOX_PRINT(0, OPEN_CON_1, true);
382
383 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
384
385 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
386 BT_MBOX_PRINT(1, IP_SR, false);
387 BT_MBOX_PRINT(1, LE_MSTR, false);
388 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
389 BT_MBOX_PRINT(1, MSG_TYPE, false);
390 BT_MBOX_PRINT(1, SSN, true);
391
392 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
393
394 BT_MBOX_PRINT(2, SNIFF_ACT, false);
395 BT_MBOX_PRINT(2, PAG, false);
396 BT_MBOX_PRINT(2, INQUIRY, false);
397 BT_MBOX_PRINT(2, CONN, false);
398 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
399 BT_MBOX_PRINT(2, DISC, false);
400 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
401 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
402 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
403 BT_MBOX_PRINT(2, SCO_DURATION, true);
404
405 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
406
407 BT_MBOX_PRINT(3, SCO_STATE, false);
408 BT_MBOX_PRINT(3, SNIFF_STATE, false);
409 BT_MBOX_PRINT(3, A2DP_STATE, false);
410 BT_MBOX_PRINT(3, ACL_STATE, false);
411 BT_MBOX_PRINT(3, MSTR_STATE, false);
412 BT_MBOX_PRINT(3, OBX_STATE, false);
413 BT_MBOX_PRINT(3, OPEN_CON_2, false);
414 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
415 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
416 BT_MBOX_PRINT(3, INBAND_P, false);
417 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
418 BT_MBOX_PRINT(3, SSN_2, false);
419 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
420
421 return pos;
422 }
423
424 static
425 int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
426 char *buf, int pos, int bufsz)
427 {
428 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
429
430 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
431 BT_MBOX_PRINT(0, LE_PROF1, false);
432 BT_MBOX_PRINT(0, LE_PROF2, false);
433 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
434 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
435 BT_MBOX_PRINT(0, INBAND_S, false);
436 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
437 BT_MBOX_PRINT(0, LE_SCAN, false);
438 BT_MBOX_PRINT(0, LE_ADV, false);
439 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
440 BT_MBOX_PRINT(0, OPEN_CON_1, true);
441
442 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
443
444 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
445 BT_MBOX_PRINT(1, IP_SR, false);
446 BT_MBOX_PRINT(1, LE_MSTR, false);
447 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
448 BT_MBOX_PRINT(1, MSG_TYPE, false);
449 BT_MBOX_PRINT(1, SSN, true);
450
451 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
452
453 BT_MBOX_PRINT(2, SNIFF_ACT, false);
454 BT_MBOX_PRINT(2, PAG, false);
455 BT_MBOX_PRINT(2, INQUIRY, false);
456 BT_MBOX_PRINT(2, CONN, false);
457 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
458 BT_MBOX_PRINT(2, DISC, false);
459 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
460 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
461 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
462 BT_MBOX_PRINT(2, SCO_DURATION, true);
463
464 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
465
466 BT_MBOX_PRINT(3, SCO_STATE, false);
467 BT_MBOX_PRINT(3, SNIFF_STATE, false);
468 BT_MBOX_PRINT(3, A2DP_STATE, false);
469 BT_MBOX_PRINT(3, ACL_STATE, false);
470 BT_MBOX_PRINT(3, MSTR_STATE, false);
471 BT_MBOX_PRINT(3, OBX_STATE, false);
472 BT_MBOX_PRINT(3, OPEN_CON_2, false);
473 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
474 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
475 BT_MBOX_PRINT(3, INBAND_P, false);
476 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
477 BT_MBOX_PRINT(3, SSN_2, false);
478 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
479
480 return pos;
481 }
482
483 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
484 size_t count, loff_t *ppos)
485 {
486 struct iwl_mvm *mvm = file->private_data;
487 char *buf;
488 int ret, pos = 0, bufsz = sizeof(char) * 1024;
489
490 buf = kmalloc(bufsz, GFP_KERNEL);
491 if (!buf)
492 return -ENOMEM;
493
494 mutex_lock(&mvm->mutex);
495
496 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
497 struct iwl_bt_coex_profile_notif_old *notif =
498 &mvm->last_bt_notif_old;
499
500 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
501
502 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
503 notif->bt_ci_compliance);
504 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
505 le32_to_cpu(notif->primary_ch_lut));
506 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
507 le32_to_cpu(notif->secondary_ch_lut));
508 pos += scnprintf(buf+pos,
509 bufsz-pos, "bt_activity_grading = %d\n",
510 le32_to_cpu(notif->bt_activity_grading));
511 pos += scnprintf(buf+pos, bufsz-pos,
512 "antenna isolation = %d CORUN LUT index = %d\n",
513 mvm->last_ant_isol, mvm->last_corun_lut);
514 } else {
515 struct iwl_bt_coex_profile_notif *notif =
516 &mvm->last_bt_notif;
517
518 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
519
520 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
521 notif->bt_ci_compliance);
522 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
523 le32_to_cpu(notif->primary_ch_lut));
524 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
525 le32_to_cpu(notif->secondary_ch_lut));
526 pos += scnprintf(buf+pos,
527 bufsz-pos, "bt_activity_grading = %d\n",
528 le32_to_cpu(notif->bt_activity_grading));
529 pos += scnprintf(buf+pos, bufsz-pos,
530 "antenna isolation = %d CORUN LUT index = %d\n",
531 mvm->last_ant_isol, mvm->last_corun_lut);
532 }
533
534 mutex_unlock(&mvm->mutex);
535
536 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
537 kfree(buf);
538
539 return ret;
540 }
541 #undef BT_MBOX_PRINT
542
543 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
544 size_t count, loff_t *ppos)
545 {
546 struct iwl_mvm *mvm = file->private_data;
547 char buf[256];
548 int bufsz = sizeof(buf);
549 int pos = 0;
550
551 mutex_lock(&mvm->mutex);
552
553 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
554 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
555
556 pos += scnprintf(buf+pos, bufsz-pos,
557 "Channel inhibition CMD\n");
558 pos += scnprintf(buf+pos, bufsz-pos,
559 "\tPrimary Channel Bitmap 0x%016llx\n",
560 le64_to_cpu(cmd->bt_primary_ci));
561 pos += scnprintf(buf+pos, bufsz-pos,
562 "\tSecondary Channel Bitmap 0x%016llx\n",
563 le64_to_cpu(cmd->bt_secondary_ci));
564
565 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
566 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
567 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
568 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
569 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
570
571 } else {
572 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
573
574 pos += scnprintf(buf+pos, bufsz-pos,
575 "Channel inhibition CMD\n");
576 pos += scnprintf(buf+pos, bufsz-pos,
577 "\tPrimary Channel Bitmap 0x%016llx\n",
578 le64_to_cpu(cmd->bt_primary_ci));
579 pos += scnprintf(buf+pos, bufsz-pos,
580 "\tSecondary Channel Bitmap 0x%016llx\n",
581 le64_to_cpu(cmd->bt_secondary_ci));
582
583 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
584 pos += scnprintf(buf+pos, bufsz-pos,
585 "\tPrimary: ACK Kill Mask 0x%08x\n",
586 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
587 pos += scnprintf(buf+pos, bufsz-pos,
588 "\tPrimary: CTS Kill Mask 0x%08x\n",
589 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
590 pos += scnprintf(buf+pos, bufsz-pos,
591 "\tSecondary: ACK Kill Mask 0x%08x\n",
592 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[1]]);
593 pos += scnprintf(buf+pos, bufsz-pos,
594 "\tSecondary: CTS Kill Mask 0x%08x\n",
595 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[1]]);
596
597 }
598
599 mutex_unlock(&mvm->mutex);
600
601 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
602 }
603
604 static ssize_t
605 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
606 size_t count, loff_t *ppos)
607 {
608 u32 bt_tx_prio;
609
610 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
611 return -EINVAL;
612 if (bt_tx_prio > 4)
613 return -EINVAL;
614
615 mvm->bt_tx_prio = bt_tx_prio;
616
617 return count;
618 }
619
620 static ssize_t
621 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
622 size_t count, loff_t *ppos)
623 {
624 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
625 [BT_FORCE_ANT_DIS] = "dis",
626 [BT_FORCE_ANT_AUTO] = "auto",
627 [BT_FORCE_ANT_BT] = "bt",
628 [BT_FORCE_ANT_WIFI] = "wifi",
629 };
630 int ret, bt_force_ant_mode;
631
632 for (bt_force_ant_mode = 0;
633 bt_force_ant_mode < ARRAY_SIZE(modes_str);
634 bt_force_ant_mode++) {
635 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
636 break;
637 }
638
639 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
640 return -EINVAL;
641
642 ret = 0;
643 mutex_lock(&mvm->mutex);
644 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
645 goto out;
646
647 mvm->bt_force_ant_mode = bt_force_ant_mode;
648 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
649 modes_str[mvm->bt_force_ant_mode]);
650 ret = iwl_send_bt_init_conf(mvm);
651
652 out:
653 mutex_unlock(&mvm->mutex);
654 return ret ?: count;
655 }
656
657 #define PRINT_STATS_LE32(_struct, _memb) \
658 pos += scnprintf(buf + pos, bufsz - pos, \
659 fmt_table, #_memb, \
660 le32_to_cpu(_struct->_memb))
661
662 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
663 char __user *user_buf, size_t count,
664 loff_t *ppos)
665 {
666 struct iwl_mvm *mvm = file->private_data;
667 static const char *fmt_table = "\t%-30s %10u\n";
668 static const char *fmt_header = "%-32s\n";
669 int pos = 0;
670 char *buf;
671 int ret;
672 /* 43 is the size of each data line, 33 is the size of each header */
673 size_t bufsz =
674 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
675 (4 * 33) + 1;
676
677 struct mvm_statistics_rx_phy *ofdm;
678 struct mvm_statistics_rx_phy *cck;
679 struct mvm_statistics_rx_non_phy *general;
680 struct mvm_statistics_rx_ht_phy *ht;
681
682 buf = kzalloc(bufsz, GFP_KERNEL);
683 if (!buf)
684 return -ENOMEM;
685
686 mutex_lock(&mvm->mutex);
687
688 ofdm = &mvm->rx_stats.ofdm;
689 cck = &mvm->rx_stats.cck;
690 general = &mvm->rx_stats.general;
691 ht = &mvm->rx_stats.ofdm_ht;
692
693 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
694 "Statistics_Rx - OFDM");
695 PRINT_STATS_LE32(ofdm, ina_cnt);
696 PRINT_STATS_LE32(ofdm, fina_cnt);
697 PRINT_STATS_LE32(ofdm, plcp_err);
698 PRINT_STATS_LE32(ofdm, crc32_err);
699 PRINT_STATS_LE32(ofdm, overrun_err);
700 PRINT_STATS_LE32(ofdm, early_overrun_err);
701 PRINT_STATS_LE32(ofdm, crc32_good);
702 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
703 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
704 PRINT_STATS_LE32(ofdm, sfd_timeout);
705 PRINT_STATS_LE32(ofdm, fina_timeout);
706 PRINT_STATS_LE32(ofdm, unresponded_rts);
707 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
708 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
709 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
710 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
711 PRINT_STATS_LE32(ofdm, dsp_self_kill);
712 PRINT_STATS_LE32(ofdm, mh_format_err);
713 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
714 PRINT_STATS_LE32(ofdm, reserved);
715
716 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
717 "Statistics_Rx - CCK");
718 PRINT_STATS_LE32(cck, ina_cnt);
719 PRINT_STATS_LE32(cck, fina_cnt);
720 PRINT_STATS_LE32(cck, plcp_err);
721 PRINT_STATS_LE32(cck, crc32_err);
722 PRINT_STATS_LE32(cck, overrun_err);
723 PRINT_STATS_LE32(cck, early_overrun_err);
724 PRINT_STATS_LE32(cck, crc32_good);
725 PRINT_STATS_LE32(cck, false_alarm_cnt);
726 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
727 PRINT_STATS_LE32(cck, sfd_timeout);
728 PRINT_STATS_LE32(cck, fina_timeout);
729 PRINT_STATS_LE32(cck, unresponded_rts);
730 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
731 PRINT_STATS_LE32(cck, sent_ack_cnt);
732 PRINT_STATS_LE32(cck, sent_cts_cnt);
733 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
734 PRINT_STATS_LE32(cck, dsp_self_kill);
735 PRINT_STATS_LE32(cck, mh_format_err);
736 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
737 PRINT_STATS_LE32(cck, reserved);
738
739 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
740 "Statistics_Rx - GENERAL");
741 PRINT_STATS_LE32(general, bogus_cts);
742 PRINT_STATS_LE32(general, bogus_ack);
743 PRINT_STATS_LE32(general, non_bssid_frames);
744 PRINT_STATS_LE32(general, filtered_frames);
745 PRINT_STATS_LE32(general, non_channel_beacons);
746 PRINT_STATS_LE32(general, channel_beacons);
747 PRINT_STATS_LE32(general, num_missed_bcon);
748 PRINT_STATS_LE32(general, adc_rx_saturation_time);
749 PRINT_STATS_LE32(general, ina_detection_search_time);
750 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
751 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
752 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
753 PRINT_STATS_LE32(general, interference_data_flag);
754 PRINT_STATS_LE32(general, channel_load);
755 PRINT_STATS_LE32(general, dsp_false_alarms);
756 PRINT_STATS_LE32(general, beacon_rssi_a);
757 PRINT_STATS_LE32(general, beacon_rssi_b);
758 PRINT_STATS_LE32(general, beacon_rssi_c);
759 PRINT_STATS_LE32(general, beacon_energy_a);
760 PRINT_STATS_LE32(general, beacon_energy_b);
761 PRINT_STATS_LE32(general, beacon_energy_c);
762 PRINT_STATS_LE32(general, num_bt_kills);
763 PRINT_STATS_LE32(general, mac_id);
764 PRINT_STATS_LE32(general, directed_data_mpdu);
765
766 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
767 "Statistics_Rx - HT");
768 PRINT_STATS_LE32(ht, plcp_err);
769 PRINT_STATS_LE32(ht, overrun_err);
770 PRINT_STATS_LE32(ht, early_overrun_err);
771 PRINT_STATS_LE32(ht, crc32_good);
772 PRINT_STATS_LE32(ht, crc32_err);
773 PRINT_STATS_LE32(ht, mh_format_err);
774 PRINT_STATS_LE32(ht, agg_crc32_good);
775 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
776 PRINT_STATS_LE32(ht, agg_cnt);
777 PRINT_STATS_LE32(ht, unsupport_mcs);
778
779 mutex_unlock(&mvm->mutex);
780
781 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
782 kfree(buf);
783
784 return ret;
785 }
786 #undef PRINT_STAT_LE32
787
788 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
789 char __user *user_buf, size_t count,
790 loff_t *ppos,
791 struct iwl_mvm_frame_stats *stats)
792 {
793 char *buff, *pos, *endpos;
794 int idx, i;
795 int ret;
796 static const size_t bufsz = 1024;
797
798 buff = kmalloc(bufsz, GFP_KERNEL);
799 if (!buff)
800 return -ENOMEM;
801
802 spin_lock_bh(&mvm->drv_stats_lock);
803
804 pos = buff;
805 endpos = pos + bufsz;
806
807 pos += scnprintf(pos, endpos - pos,
808 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
809 stats->legacy_frames,
810 stats->ht_frames,
811 stats->vht_frames);
812 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
813 stats->bw_20_frames,
814 stats->bw_40_frames,
815 stats->bw_80_frames);
816 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
817 stats->ngi_frames,
818 stats->sgi_frames);
819 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
820 stats->siso_frames,
821 stats->mimo2_frames);
822 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
823 stats->fail_frames,
824 stats->success_frames);
825 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
826 stats->agg_frames);
827 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
828 stats->ampdu_count);
829 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
830 stats->ampdu_count > 0 ?
831 (stats->agg_frames / stats->ampdu_count) : 0);
832
833 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
834
835 idx = stats->last_frame_idx - 1;
836 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
837 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
838 if (stats->last_rates[idx] == 0)
839 continue;
840 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
841 (int)(ARRAY_SIZE(stats->last_rates) - i));
842 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
843 }
844 spin_unlock_bh(&mvm->drv_stats_lock);
845
846 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
847 kfree(buff);
848
849 return ret;
850 }
851
852 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
853 char __user *user_buf, size_t count,
854 loff_t *ppos)
855 {
856 struct iwl_mvm *mvm = file->private_data;
857
858 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
859 &mvm->drv_rx_stats);
860 }
861
862 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
863 size_t count, loff_t *ppos)
864 {
865 int ret;
866
867 mutex_lock(&mvm->mutex);
868
869 /* allow one more restart that we're provoking here */
870 if (mvm->restart_fw >= 0)
871 mvm->restart_fw++;
872
873 /* take the return value to make compiler happy - it will fail anyway */
874 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
875
876 mutex_unlock(&mvm->mutex);
877
878 return count;
879 }
880
881 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
882 size_t count, loff_t *ppos)
883 {
884 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
885 if (ret)
886 return ret;
887
888 iwl_force_nmi(mvm->trans);
889
890 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
891
892 return count;
893 }
894
895 static ssize_t
896 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
897 char __user *user_buf,
898 size_t count, loff_t *ppos)
899 {
900 struct iwl_mvm *mvm = file->private_data;
901 int pos = 0;
902 char buf[32];
903 const size_t bufsz = sizeof(buf);
904
905 /* print which antennas were set for the scan command by the user */
906 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
907 if (mvm->scan_rx_ant & ANT_A)
908 pos += scnprintf(buf + pos, bufsz - pos, "A");
909 if (mvm->scan_rx_ant & ANT_B)
910 pos += scnprintf(buf + pos, bufsz - pos, "B");
911 if (mvm->scan_rx_ant & ANT_C)
912 pos += scnprintf(buf + pos, bufsz - pos, "C");
913 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
914
915 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
916 }
917
918 static ssize_t
919 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
920 size_t count, loff_t *ppos)
921 {
922 u8 scan_rx_ant;
923
924 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
925 return -EINVAL;
926 if (scan_rx_ant > ANT_ABC)
927 return -EINVAL;
928 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
929 return -EINVAL;
930
931 if (mvm->scan_rx_ant != scan_rx_ant) {
932 mvm->scan_rx_ant = scan_rx_ant;
933 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
934 iwl_mvm_config_scan(mvm);
935 }
936
937 return count;
938 }
939
940 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
941 char __user *user_buf,
942 size_t count, loff_t *ppos)
943 {
944 struct iwl_mvm *mvm = file->private_data;
945 enum iwl_fw_dbg_conf conf;
946 char buf[8];
947 const size_t bufsz = sizeof(buf);
948 int pos = 0;
949
950 mutex_lock(&mvm->mutex);
951 conf = mvm->fw_dbg_conf;
952 mutex_unlock(&mvm->mutex);
953
954 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
955
956 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
957 }
958
959 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
960 char *buf, size_t count,
961 loff_t *ppos)
962 {
963 int ret, conf_id;
964
965 ret = kstrtoint(buf, 0, &conf_id);
966 if (ret)
967 return ret;
968
969 if (WARN_ON(conf_id >= FW_DBG_MAX))
970 return -EINVAL;
971
972 mutex_lock(&mvm->mutex);
973 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
974 mutex_unlock(&mvm->mutex);
975
976 return ret ?: count;
977 }
978
979 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
980 char *buf, size_t count,
981 loff_t *ppos)
982 {
983 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
984
985 if (ret)
986 return ret;
987
988 iwl_mvm_fw_dbg_collect(mvm);
989
990 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
991
992 return count;
993 }
994
995 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
996 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
997 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
998 char __user *user_buf,
999 size_t count, loff_t *ppos)
1000 {
1001 struct iwl_mvm *mvm = file->private_data;
1002 struct iwl_bcast_filter_cmd cmd;
1003 const struct iwl_fw_bcast_filter *filter;
1004 char *buf;
1005 int bufsz = 1024;
1006 int i, j, pos = 0;
1007 ssize_t ret;
1008
1009 buf = kzalloc(bufsz, GFP_KERNEL);
1010 if (!buf)
1011 return -ENOMEM;
1012
1013 mutex_lock(&mvm->mutex);
1014 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1015 ADD_TEXT("None\n");
1016 mutex_unlock(&mvm->mutex);
1017 goto out;
1018 }
1019 mutex_unlock(&mvm->mutex);
1020
1021 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1022 filter = &cmd.filters[i];
1023
1024 ADD_TEXT("Filter [%d]:\n", i);
1025 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1026 ADD_TEXT("\tFrame Type: %s\n",
1027 filter->frame_type ? "IPv4" : "Generic");
1028
1029 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1030 const struct iwl_fw_bcast_filter_attr *attr;
1031
1032 attr = &filter->attrs[j];
1033 if (!attr->mask)
1034 break;
1035
1036 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1037 j, attr->offset,
1038 attr->offset_type ? "IP End" :
1039 "Payload Start",
1040 be32_to_cpu(attr->mask),
1041 be32_to_cpu(attr->val),
1042 le16_to_cpu(attr->reserved1));
1043 }
1044 }
1045 out:
1046 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1047 kfree(buf);
1048 return ret;
1049 }
1050
1051 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1052 size_t count, loff_t *ppos)
1053 {
1054 int pos, next_pos;
1055 struct iwl_fw_bcast_filter filter = {};
1056 struct iwl_bcast_filter_cmd cmd;
1057 u32 filter_id, attr_id, mask, value;
1058 int err = 0;
1059
1060 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1061 &filter.frame_type, &pos) != 3)
1062 return -EINVAL;
1063
1064 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1065 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1066 return -EINVAL;
1067
1068 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1069 attr_id++) {
1070 struct iwl_fw_bcast_filter_attr *attr =
1071 &filter.attrs[attr_id];
1072
1073 if (pos >= count)
1074 break;
1075
1076 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1077 &attr->offset, &attr->offset_type,
1078 &mask, &value, &next_pos) != 4)
1079 return -EINVAL;
1080
1081 attr->mask = cpu_to_be32(mask);
1082 attr->val = cpu_to_be32(value);
1083 if (mask)
1084 filter.num_attrs++;
1085
1086 pos += next_pos;
1087 }
1088
1089 mutex_lock(&mvm->mutex);
1090 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1091 &filter, sizeof(filter));
1092
1093 /* send updated bcast filtering configuration */
1094 if (mvm->dbgfs_bcast_filtering.override &&
1095 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1096 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1097 sizeof(cmd), &cmd);
1098 mutex_unlock(&mvm->mutex);
1099
1100 return err ?: count;
1101 }
1102
1103 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1104 char __user *user_buf,
1105 size_t count, loff_t *ppos)
1106 {
1107 struct iwl_mvm *mvm = file->private_data;
1108 struct iwl_bcast_filter_cmd cmd;
1109 char *buf;
1110 int bufsz = 1024;
1111 int i, pos = 0;
1112 ssize_t ret;
1113
1114 buf = kzalloc(bufsz, GFP_KERNEL);
1115 if (!buf)
1116 return -ENOMEM;
1117
1118 mutex_lock(&mvm->mutex);
1119 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1120 ADD_TEXT("None\n");
1121 mutex_unlock(&mvm->mutex);
1122 goto out;
1123 }
1124 mutex_unlock(&mvm->mutex);
1125
1126 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1127 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1128
1129 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1130 i, mac->default_discard, mac->attached_filters);
1131 }
1132 out:
1133 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1134 kfree(buf);
1135 return ret;
1136 }
1137
1138 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1139 char *buf, size_t count,
1140 loff_t *ppos)
1141 {
1142 struct iwl_bcast_filter_cmd cmd;
1143 struct iwl_fw_bcast_mac mac = {};
1144 u32 mac_id, attached_filters;
1145 int err = 0;
1146
1147 if (!mvm->bcast_filters)
1148 return -ENOENT;
1149
1150 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1151 &attached_filters) != 3)
1152 return -EINVAL;
1153
1154 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1155 mac.default_discard > 1 ||
1156 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1157 return -EINVAL;
1158
1159 mac.attached_filters = cpu_to_le16(attached_filters);
1160
1161 mutex_lock(&mvm->mutex);
1162 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1163 &mac, sizeof(mac));
1164
1165 /* send updated bcast filtering configuration */
1166 if (mvm->dbgfs_bcast_filtering.override &&
1167 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1168 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1169 sizeof(cmd), &cmd);
1170 mutex_unlock(&mvm->mutex);
1171
1172 return err ?: count;
1173 }
1174 #endif
1175
1176 #ifdef CONFIG_PM_SLEEP
1177 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1178 size_t count, loff_t *ppos)
1179 {
1180 int store;
1181
1182 if (sscanf(buf, "%d", &store) != 1)
1183 return -EINVAL;
1184
1185 mvm->store_d3_resume_sram = store;
1186
1187 return count;
1188 }
1189
1190 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1191 size_t count, loff_t *ppos)
1192 {
1193 struct iwl_mvm *mvm = file->private_data;
1194 const struct fw_img *img;
1195 int ofs, len, pos = 0;
1196 size_t bufsz, ret;
1197 char *buf;
1198 u8 *ptr = mvm->d3_resume_sram;
1199
1200 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1201 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1202
1203 bufsz = len * 4 + 256;
1204 buf = kzalloc(bufsz, GFP_KERNEL);
1205 if (!buf)
1206 return -ENOMEM;
1207
1208 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1209 mvm->store_d3_resume_sram ? "en" : "dis");
1210
1211 if (ptr) {
1212 for (ofs = 0; ofs < len; ofs += 16) {
1213 pos += scnprintf(buf + pos, bufsz - pos,
1214 "0x%.4x ", ofs);
1215 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1216 bufsz - pos, false);
1217 pos += strlen(buf + pos);
1218 if (bufsz - pos > 0)
1219 buf[pos++] = '\n';
1220 }
1221 } else {
1222 pos += scnprintf(buf + pos, bufsz - pos,
1223 "(no data captured)\n");
1224 }
1225
1226 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1227
1228 kfree(buf);
1229
1230 return ret;
1231 }
1232
1233 #define MAX_NUM_ND_MATCHSETS 10
1234
1235 static ssize_t iwl_dbgfs_netdetect_write(struct iwl_mvm *mvm, char *buf,
1236 size_t count, loff_t *ppos)
1237 {
1238 const char *seps = ",\n";
1239 char *buf_ptr = buf;
1240 char *value_str = NULL;
1241 int ret, i;
1242
1243 /* TODO: don't free if write is being called several times in one go */
1244 if (mvm->nd_config) {
1245 kfree(mvm->nd_config->match_sets);
1246 kfree(mvm->nd_config);
1247 mvm->nd_config = NULL;
1248 }
1249
1250 mvm->nd_config = kzalloc(sizeof(*mvm->nd_config) +
1251 (11 * sizeof(struct ieee80211_channel *)),
1252 GFP_KERNEL);
1253 if (!mvm->nd_config) {
1254 ret = -ENOMEM;
1255 goto out_free;
1256 }
1257
1258 mvm->nd_config->n_channels = 11;
1259 mvm->nd_config->scan_width = NL80211_BSS_CHAN_WIDTH_20;
1260 mvm->nd_config->interval = 5;
1261 mvm->nd_config->min_rssi_thold = -80;
1262 for (i = 0; i < mvm->nd_config->n_channels; i++)
1263 mvm->nd_config->channels[i] = &mvm->nvm_data->channels[i];
1264
1265 mvm->nd_config->match_sets =
1266 kcalloc(MAX_NUM_ND_MATCHSETS,
1267 sizeof(*mvm->nd_config->match_sets),
1268 GFP_KERNEL);
1269 if (!mvm->nd_config->match_sets) {
1270 ret = -ENOMEM;
1271 goto out_free;
1272 }
1273
1274 while ((value_str = strsep(&buf_ptr, seps)) &&
1275 strlen(value_str)) {
1276 struct cfg80211_match_set *set;
1277
1278 if (mvm->nd_config->n_match_sets >= MAX_NUM_ND_MATCHSETS) {
1279 ret = -EINVAL;
1280 goto out_free;
1281 }
1282
1283 set = &mvm->nd_config->match_sets[mvm->nd_config->n_match_sets];
1284 set->ssid.ssid_len = strlen(value_str);
1285
1286 if (set->ssid.ssid_len > IEEE80211_MAX_SSID_LEN) {
1287 ret = -EINVAL;
1288 goto out_free;
1289 }
1290
1291 memcpy(set->ssid.ssid, value_str, set->ssid.ssid_len);
1292
1293 mvm->nd_config->n_match_sets++;
1294 }
1295
1296 ret = count;
1297
1298 if (mvm->nd_config->n_match_sets)
1299 goto out;
1300
1301 out_free:
1302 if (mvm->nd_config)
1303 kfree(mvm->nd_config->match_sets);
1304 kfree(mvm->nd_config);
1305 mvm->nd_config = NULL;
1306 out:
1307 return ret;
1308 }
1309
1310 static ssize_t
1311 iwl_dbgfs_netdetect_read(struct file *file, char __user *user_buf,
1312 size_t count, loff_t *ppos)
1313 {
1314 struct iwl_mvm *mvm = file->private_data;
1315 size_t bufsz, ret;
1316 char *buf;
1317 int i, n_match_sets, pos = 0;
1318
1319 n_match_sets = mvm->nd_config ? mvm->nd_config->n_match_sets : 0;
1320
1321 bufsz = n_match_sets * (IEEE80211_MAX_SSID_LEN + 1) + 1;
1322 buf = kzalloc(bufsz, GFP_KERNEL);
1323 if (!buf)
1324 return -ENOMEM;
1325
1326 for (i = 0; i < n_match_sets; i++) {
1327 if (pos +
1328 mvm->nd_config->match_sets[i].ssid.ssid_len + 2 > bufsz) {
1329 ret = -EIO;
1330 goto out;
1331 }
1332
1333 memcpy(buf + pos, mvm->nd_config->match_sets[i].ssid.ssid,
1334 mvm->nd_config->match_sets[i].ssid.ssid_len);
1335 pos += mvm->nd_config->match_sets[i].ssid.ssid_len;
1336 buf[pos++] = '\n';
1337 }
1338
1339 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1340 out:
1341 kfree(buf);
1342 return ret;
1343 }
1344 #endif
1345
1346 #define PRINT_MVM_REF(ref) do { \
1347 if (mvm->refs[ref]) \
1348 pos += scnprintf(buf + pos, bufsz - pos, \
1349 "\t(0x%lx): %d %s\n", \
1350 BIT(ref), mvm->refs[ref], #ref); \
1351 } while (0)
1352
1353 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1354 char __user *user_buf,
1355 size_t count, loff_t *ppos)
1356 {
1357 struct iwl_mvm *mvm = file->private_data;
1358 int i, pos = 0;
1359 char buf[256];
1360 const size_t bufsz = sizeof(buf);
1361 u32 refs = 0;
1362
1363 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1364 if (mvm->refs[i])
1365 refs |= BIT(i);
1366
1367 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1368 refs);
1369
1370 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1371 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1372 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1373 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1374 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1375 PRINT_MVM_REF(IWL_MVM_REF_USER);
1376 PRINT_MVM_REF(IWL_MVM_REF_TX);
1377 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1378 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1379 PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1380 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1381 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1382 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1383 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1384 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1385 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1386 PRINT_MVM_REF(IWL_MVM_REF_NMI);
1387 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1388 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1389 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1390 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1391
1392 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1393 }
1394
1395 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1396 size_t count, loff_t *ppos)
1397 {
1398 unsigned long value;
1399 int ret;
1400 bool taken;
1401
1402 ret = kstrtoul(buf, 10, &value);
1403 if (ret < 0)
1404 return ret;
1405
1406 mutex_lock(&mvm->mutex);
1407
1408 taken = mvm->refs[IWL_MVM_REF_USER];
1409 if (value == 1 && !taken)
1410 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1411 else if (value == 0 && taken)
1412 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1413 else
1414 ret = -EINVAL;
1415
1416 mutex_unlock(&mvm->mutex);
1417
1418 if (ret < 0)
1419 return ret;
1420 return count;
1421 }
1422
1423 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1424 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1425 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1426 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1427 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1428 if (!debugfs_create_file(alias, mode, parent, mvm, \
1429 &iwl_dbgfs_##name##_ops)) \
1430 goto err; \
1431 } while (0)
1432 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1433 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1434
1435 static ssize_t
1436 iwl_dbgfs_prph_reg_read(struct file *file,
1437 char __user *user_buf,
1438 size_t count, loff_t *ppos)
1439 {
1440 struct iwl_mvm *mvm = file->private_data;
1441 int pos = 0;
1442 char buf[32];
1443 const size_t bufsz = sizeof(buf);
1444 int ret;
1445
1446 if (!mvm->dbgfs_prph_reg_addr)
1447 return -EINVAL;
1448
1449 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1450 if (ret)
1451 return ret;
1452
1453 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1454 mvm->dbgfs_prph_reg_addr,
1455 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1456
1457 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1458
1459 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1460 }
1461
1462 static ssize_t
1463 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1464 size_t count, loff_t *ppos)
1465 {
1466 u8 args;
1467 u32 value;
1468 int ret;
1469
1470 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1471 /* if we only want to set the reg address - nothing more to do */
1472 if (args == 1)
1473 goto out;
1474
1475 /* otherwise, make sure we have both address and value */
1476 if (args != 2)
1477 return -EINVAL;
1478
1479 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1480 if (ret)
1481 return ret;
1482
1483 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1484
1485 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1486 out:
1487 return count;
1488 }
1489
1490 static ssize_t iwl_dbgfs_enable_scan_iteration_notif_write(struct iwl_mvm *mvm,
1491 char *buf,
1492 size_t count,
1493 loff_t *ppos)
1494 {
1495 int val;
1496
1497 mutex_lock(&mvm->mutex);
1498
1499 if (kstrtoint(buf, 10, &val)) {
1500 mutex_unlock(&mvm->mutex);
1501 return -EINVAL;
1502 }
1503
1504 mvm->scan_iter_notif_enabled = val;
1505 mutex_unlock(&mvm->mutex);
1506
1507 return count;
1508 }
1509
1510 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1511
1512 /* Device wide debugfs entries */
1513 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1514 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1515 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1516 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1517 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1518 MVM_DEBUGFS_READ_FILE_OPS(stations);
1519 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1520 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1521 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1522 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1523 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1524 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1525 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1526 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1527 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1528 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1529 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1530 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1531 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
1532 MVM_DEBUGFS_WRITE_FILE_OPS(enable_scan_iteration_notif, 8);
1533
1534 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1535 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1536 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1537 #endif
1538
1539 #ifdef CONFIG_PM_SLEEP
1540 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1541 MVM_DEBUGFS_READ_WRITE_FILE_OPS(netdetect, 384);
1542 #endif
1543
1544 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1545 {
1546 struct dentry *bcast_dir __maybe_unused;
1547 char buf[100];
1548
1549 spin_lock_init(&mvm->drv_stats_lock);
1550
1551 mvm->debugfs_dir = dbgfs_dir;
1552
1553 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1554 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1555 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1556 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1557 S_IWUSR | S_IRUSR);
1558 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1559 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1560 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1561 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1562 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1563 S_IRUSR | S_IWUSR);
1564 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1565 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1566 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1567 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1568 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1569 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1570 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1571 S_IWUSR | S_IRUSR);
1572 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1573 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1574 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1575 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1576 MVM_DEBUGFS_ADD_FILE(enable_scan_iteration_notif, mvm->debugfs_dir,
1577 S_IWUSR);
1578
1579 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1580 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1581 bcast_dir = debugfs_create_dir("bcast_filtering",
1582 mvm->debugfs_dir);
1583 if (!bcast_dir)
1584 goto err;
1585
1586 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1587 bcast_dir,
1588 &mvm->dbgfs_bcast_filtering.override))
1589 goto err;
1590
1591 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1592 bcast_dir, S_IWUSR | S_IRUSR);
1593 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1594 bcast_dir, S_IWUSR | S_IRUSR);
1595 }
1596 #endif
1597
1598 #ifdef CONFIG_PM_SLEEP
1599 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1600 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1601 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1602 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1603 goto err;
1604 MVM_DEBUGFS_ADD_FILE(netdetect, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1605 #endif
1606
1607 if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,
1608 mvm->debugfs_dir,
1609 &mvm->low_latency_agg_frame_limit))
1610 goto err;
1611 if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1612 mvm->debugfs_dir, &mvm->ps_disabled))
1613 goto err;
1614 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1615 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1616 goto err;
1617 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1618 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1619 goto err;
1620 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1621 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1622 goto err;
1623 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1624 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1625 goto err;
1626
1627 /*
1628 * Create a symlink with mac80211. It will be removed when mac80211
1629 * exists (before the opmode exists which removes the target.)
1630 */
1631 snprintf(buf, 100, "../../%s/%s",
1632 dbgfs_dir->d_parent->d_parent->d_name.name,
1633 dbgfs_dir->d_parent->d_name.name);
1634 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1635 goto err;
1636
1637 return 0;
1638 err:
1639 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1640 return -ENOMEM;
1641 }
Linux kernel - Deliverables
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