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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
[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 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2014 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 <linux/vmalloc.h>
64
65 #include "mvm.h"
66 #include "sta.h"
67 #include "iwl-io.h"
68 #include "debugfs.h"
69 #include "iwl-fw-error-dump.h"
70
71 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
72 size_t count, loff_t *ppos)
73 {
74 int ret;
75 u32 scd_q_msk;
76
77 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
78 return -EIO;
79
80 if (sscanf(buf, "%x", &scd_q_msk) != 1)
81 return -EINVAL;
82
83 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
84
85 mutex_lock(&mvm->mutex);
86 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
87 mutex_unlock(&mvm->mutex);
88
89 return ret;
90 }
91
92 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
93 size_t count, loff_t *ppos)
94 {
95 struct iwl_mvm_sta *mvmsta;
96 int sta_id, drain, ret;
97
98 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
99 return -EIO;
100
101 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
102 return -EINVAL;
103 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
104 return -EINVAL;
105 if (drain < 0 || drain > 1)
106 return -EINVAL;
107
108 mutex_lock(&mvm->mutex);
109
110 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
111
112 if (!mvmsta)
113 ret = -ENOENT;
114 else
115 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
116
117 mutex_unlock(&mvm->mutex);
118
119 return ret;
120 }
121
122 static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
123 {
124 struct iwl_mvm *mvm = inode->i_private;
125 int ret;
126
127 if (!mvm)
128 return -EINVAL;
129
130 mutex_lock(&mvm->mutex);
131 if (!mvm->fw_error_dump) {
132 ret = -ENODATA;
133 goto out;
134 }
135
136 file->private_data = mvm->fw_error_dump;
137 mvm->fw_error_dump = NULL;
138 ret = 0;
139
140 out:
141 mutex_unlock(&mvm->mutex);
142 return ret;
143 }
144
145 static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
146 char __user *user_buf,
147 size_t count, loff_t *ppos)
148 {
149 struct iwl_fw_error_dump_file *dump_file = file->private_data;
150
151 return simple_read_from_buffer(user_buf, count, ppos,
152 dump_file,
153 le32_to_cpu(dump_file->file_len));
154 }
155
156 static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
157 struct file *file)
158 {
159 vfree(file->private_data);
160
161 return 0;
162 }
163
164 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
165 size_t count, loff_t *ppos)
166 {
167 struct iwl_mvm *mvm = file->private_data;
168 const struct fw_img *img;
169 unsigned int ofs, len;
170 size_t ret;
171 u8 *ptr;
172
173 if (!mvm->ucode_loaded)
174 return -EINVAL;
175
176 /* default is to dump the entire data segment */
177 img = &mvm->fw->img[mvm->cur_ucode];
178 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
179 len = img->sec[IWL_UCODE_SECTION_DATA].len;
180
181 if (mvm->dbgfs_sram_len) {
182 ofs = mvm->dbgfs_sram_offset;
183 len = mvm->dbgfs_sram_len;
184 }
185
186 ptr = kzalloc(len, GFP_KERNEL);
187 if (!ptr)
188 return -ENOMEM;
189
190 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
191
192 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
193
194 kfree(ptr);
195
196 return ret;
197 }
198
199 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
200 size_t count, loff_t *ppos)
201 {
202 const struct fw_img *img;
203 u32 offset, len;
204 u32 img_offset, img_len;
205
206 if (!mvm->ucode_loaded)
207 return -EINVAL;
208
209 img = &mvm->fw->img[mvm->cur_ucode];
210 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
211 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
212
213 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
214 if ((offset & 0x3) || (len & 0x3))
215 return -EINVAL;
216
217 if (offset + len > img_offset + img_len)
218 return -EINVAL;
219
220 mvm->dbgfs_sram_offset = offset;
221 mvm->dbgfs_sram_len = len;
222 } else {
223 mvm->dbgfs_sram_offset = 0;
224 mvm->dbgfs_sram_len = 0;
225 }
226
227 return count;
228 }
229
230 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
231 size_t count, loff_t *ppos)
232 {
233 struct iwl_mvm *mvm = file->private_data;
234 struct ieee80211_sta *sta;
235 char buf[400];
236 int i, pos = 0, bufsz = sizeof(buf);
237
238 mutex_lock(&mvm->mutex);
239
240 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
241 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
242 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
243 lockdep_is_held(&mvm->mutex));
244 if (!sta)
245 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
246 else if (IS_ERR(sta))
247 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
248 PTR_ERR(sta));
249 else
250 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
251 sta->addr);
252 }
253
254 mutex_unlock(&mvm->mutex);
255
256 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
257 }
258
259 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
260 char __user *user_buf,
261 size_t count, loff_t *ppos)
262 {
263 struct iwl_mvm *mvm = file->private_data;
264 char buf[64];
265 int bufsz = sizeof(buf);
266 int pos = 0;
267
268 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
269 mvm->disable_power_off);
270 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
271 mvm->disable_power_off_d3);
272
273 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
274 }
275
276 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
277 size_t count, loff_t *ppos)
278 {
279 int ret, val;
280
281 if (!mvm->ucode_loaded)
282 return -EIO;
283
284 if (!strncmp("disable_power_off_d0=", buf, 21)) {
285 if (sscanf(buf + 21, "%d", &val) != 1)
286 return -EINVAL;
287 mvm->disable_power_off = val;
288 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
289 if (sscanf(buf + 21, "%d", &val) != 1)
290 return -EINVAL;
291 mvm->disable_power_off_d3 = val;
292 } else {
293 return -EINVAL;
294 }
295
296 mutex_lock(&mvm->mutex);
297 ret = iwl_mvm_power_update_device(mvm);
298 mutex_unlock(&mvm->mutex);
299
300 return ret ?: count;
301 }
302
303 #define BT_MBOX_MSG(_notif, _num, _field) \
304 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
305 >> BT_MBOX##_num##_##_field##_POS)
306
307
308 #define BT_MBOX_PRINT(_num, _field, _end) \
309 pos += scnprintf(buf + pos, bufsz - pos, \
310 "\t%s: %d%s", \
311 #_field, \
312 BT_MBOX_MSG(notif, _num, _field), \
313 true ? "\n" : ", ");
314
315 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
317 {
318 struct iwl_mvm *mvm = file->private_data;
319 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
320 char *buf;
321 int ret, pos = 0, bufsz = sizeof(char) * 1024;
322
323 buf = kmalloc(bufsz, GFP_KERNEL);
324 if (!buf)
325 return -ENOMEM;
326
327 mutex_lock(&mvm->mutex);
328
329 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
330
331 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
332 BT_MBOX_PRINT(0, LE_PROF1, false);
333 BT_MBOX_PRINT(0, LE_PROF2, false);
334 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
335 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
336 BT_MBOX_PRINT(0, INBAND_S, false);
337 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
338 BT_MBOX_PRINT(0, LE_SCAN, false);
339 BT_MBOX_PRINT(0, LE_ADV, false);
340 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
341 BT_MBOX_PRINT(0, OPEN_CON_1, true);
342
343 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
344
345 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
346 BT_MBOX_PRINT(1, IP_SR, false);
347 BT_MBOX_PRINT(1, LE_MSTR, false);
348 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
349 BT_MBOX_PRINT(1, MSG_TYPE, false);
350 BT_MBOX_PRINT(1, SSN, true);
351
352 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
353
354 BT_MBOX_PRINT(2, SNIFF_ACT, false);
355 BT_MBOX_PRINT(2, PAG, false);
356 BT_MBOX_PRINT(2, INQUIRY, false);
357 BT_MBOX_PRINT(2, CONN, false);
358 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
359 BT_MBOX_PRINT(2, DISC, false);
360 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
361 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
362 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
363 BT_MBOX_PRINT(2, SCO_DURATION, true);
364
365 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
366
367 BT_MBOX_PRINT(3, SCO_STATE, false);
368 BT_MBOX_PRINT(3, SNIFF_STATE, false);
369 BT_MBOX_PRINT(3, A2DP_STATE, false);
370 BT_MBOX_PRINT(3, ACL_STATE, false);
371 BT_MBOX_PRINT(3, MSTR_STATE, false);
372 BT_MBOX_PRINT(3, OBX_STATE, false);
373 BT_MBOX_PRINT(3, OPEN_CON_2, false);
374 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
375 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
376 BT_MBOX_PRINT(3, INBAND_P, false);
377 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
378 BT_MBOX_PRINT(3, SSN_2, false);
379 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
380
381 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
382 notif->bt_status);
383 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
384 notif->bt_open_conn);
385 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
386 notif->bt_traffic_load);
387 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
388 notif->bt_agg_traffic_load);
389 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
390 notif->bt_ci_compliance);
391 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
392 le32_to_cpu(notif->primary_ch_lut));
393 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
394 le32_to_cpu(notif->secondary_ch_lut));
395 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
396 le32_to_cpu(notif->bt_activity_grading));
397 pos += scnprintf(buf+pos, bufsz-pos,
398 "antenna isolation = %d CORUN LUT index = %d\n",
399 mvm->last_ant_isol, mvm->last_corun_lut);
400
401 mutex_unlock(&mvm->mutex);
402
403 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
404 kfree(buf);
405
406 return ret;
407 }
408 #undef BT_MBOX_PRINT
409
410 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
411 size_t count, loff_t *ppos)
412 {
413 struct iwl_mvm *mvm = file->private_data;
414 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
415 char buf[256];
416 int bufsz = sizeof(buf);
417 int pos = 0;
418
419 mutex_lock(&mvm->mutex);
420
421 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
422 pos += scnprintf(buf+pos, bufsz-pos,
423 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
424 le64_to_cpu(cmd->bt_primary_ci),
425 !!cmd->co_run_bw_primary);
426 pos += scnprintf(buf+pos, bufsz-pos,
427 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
428 le64_to_cpu(cmd->bt_secondary_ci),
429 !!cmd->co_run_bw_secondary);
430
431 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
432 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
433 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
434 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
435 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
436
437 mutex_unlock(&mvm->mutex);
438
439 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
440 }
441
442 static ssize_t
443 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
444 size_t count, loff_t *ppos)
445 {
446 u32 bt_tx_prio;
447
448 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
449 return -EINVAL;
450 if (bt_tx_prio > 4)
451 return -EINVAL;
452
453 mvm->bt_tx_prio = bt_tx_prio;
454
455 return count;
456 }
457
458 #define PRINT_STATS_LE32(_str, _val) \
459 pos += scnprintf(buf + pos, bufsz - pos, \
460 fmt_table, _str, \
461 le32_to_cpu(_val))
462
463 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
464 char __user *user_buf, size_t count,
465 loff_t *ppos)
466 {
467 struct iwl_mvm *mvm = file->private_data;
468 static const char *fmt_table = "\t%-30s %10u\n";
469 static const char *fmt_header = "%-32s\n";
470 int pos = 0;
471 char *buf;
472 int ret;
473 /* 43 is the size of each data line, 33 is the size of each header */
474 size_t bufsz =
475 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
476 (4 * 33) + 1;
477
478 struct mvm_statistics_rx_phy *ofdm;
479 struct mvm_statistics_rx_phy *cck;
480 struct mvm_statistics_rx_non_phy *general;
481 struct mvm_statistics_rx_ht_phy *ht;
482
483 buf = kzalloc(bufsz, GFP_KERNEL);
484 if (!buf)
485 return -ENOMEM;
486
487 mutex_lock(&mvm->mutex);
488
489 ofdm = &mvm->rx_stats.ofdm;
490 cck = &mvm->rx_stats.cck;
491 general = &mvm->rx_stats.general;
492 ht = &mvm->rx_stats.ofdm_ht;
493
494 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
495 "Statistics_Rx - OFDM");
496 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
497 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
498 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
499 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
500 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
501 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
502 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
503 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
504 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
505 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
506 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
507 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
508 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
509 ofdm->rxe_frame_limit_overrun);
510 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
511 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
512 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
513 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
514 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
515 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
516 PRINT_STATS_LE32("reserved", ofdm->reserved);
517
518 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
519 "Statistics_Rx - CCK");
520 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
521 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
522 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
523 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
524 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
525 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
526 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
527 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
528 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
529 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
530 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
531 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
532 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
533 cck->rxe_frame_limit_overrun);
534 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
535 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
536 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
537 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
538 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
539 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
540 PRINT_STATS_LE32("reserved", cck->reserved);
541
542 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
543 "Statistics_Rx - GENERAL");
544 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
545 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
546 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
547 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
548 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
549 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
550 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
551 PRINT_STATS_LE32("adc_rx_saturation_time",
552 general->adc_rx_saturation_time);
553 PRINT_STATS_LE32("ina_detection_search_time",
554 general->ina_detection_search_time);
555 PRINT_STATS_LE32("beacon_silence_rssi_a",
556 general->beacon_silence_rssi_a);
557 PRINT_STATS_LE32("beacon_silence_rssi_b",
558 general->beacon_silence_rssi_b);
559 PRINT_STATS_LE32("beacon_silence_rssi_c",
560 general->beacon_silence_rssi_c);
561 PRINT_STATS_LE32("interference_data_flag",
562 general->interference_data_flag);
563 PRINT_STATS_LE32("channel_load", general->channel_load);
564 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
565 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
566 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
567 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
568 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
569 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
570 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
571 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
572 PRINT_STATS_LE32("mac_id", general->mac_id);
573 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
574
575 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
576 "Statistics_Rx - HT");
577 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
578 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
579 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
580 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
581 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
582 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
583 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
584 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
585 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
586 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
587
588 mutex_unlock(&mvm->mutex);
589
590 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
591 kfree(buf);
592
593 return ret;
594 }
595 #undef PRINT_STAT_LE32
596
597 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
598 char __user *user_buf, size_t count,
599 loff_t *ppos,
600 struct iwl_mvm_frame_stats *stats)
601 {
602 char *buff, *pos, *endpos;
603 int idx, i;
604 int ret;
605 static const size_t bufsz = 1024;
606
607 buff = kmalloc(bufsz, GFP_KERNEL);
608 if (!buff)
609 return -ENOMEM;
610
611 spin_lock_bh(&mvm->drv_stats_lock);
612
613 pos = buff;
614 endpos = pos + bufsz;
615
616 pos += scnprintf(pos, endpos - pos,
617 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
618 stats->legacy_frames,
619 stats->ht_frames,
620 stats->vht_frames);
621 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
622 stats->bw_20_frames,
623 stats->bw_40_frames,
624 stats->bw_80_frames);
625 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
626 stats->ngi_frames,
627 stats->sgi_frames);
628 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
629 stats->siso_frames,
630 stats->mimo2_frames);
631 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
632 stats->fail_frames,
633 stats->success_frames);
634 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
635 stats->agg_frames);
636 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
637 stats->ampdu_count);
638 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
639 stats->ampdu_count > 0 ?
640 (stats->agg_frames / stats->ampdu_count) : 0);
641
642 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
643
644 idx = stats->last_frame_idx - 1;
645 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
646 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
647 if (stats->last_rates[idx] == 0)
648 continue;
649 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
650 (int)(ARRAY_SIZE(stats->last_rates) - i));
651 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
652 }
653 spin_unlock_bh(&mvm->drv_stats_lock);
654
655 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
656 kfree(buff);
657
658 return ret;
659 }
660
661 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
662 char __user *user_buf, size_t count,
663 loff_t *ppos)
664 {
665 struct iwl_mvm *mvm = file->private_data;
666
667 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
668 &mvm->drv_rx_stats);
669 }
670
671 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
672 size_t count, loff_t *ppos)
673 {
674 int ret;
675
676 mutex_lock(&mvm->mutex);
677
678 /* allow one more restart that we're provoking here */
679 if (mvm->restart_fw >= 0)
680 mvm->restart_fw++;
681
682 /* take the return value to make compiler happy - it will fail anyway */
683 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
684
685 mutex_unlock(&mvm->mutex);
686
687 return count;
688 }
689
690 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
691 size_t count, loff_t *ppos)
692 {
693 iwl_force_nmi(mvm->trans);
694
695 return count;
696 }
697
698 static ssize_t
699 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
700 char __user *user_buf,
701 size_t count, loff_t *ppos)
702 {
703 struct iwl_mvm *mvm = file->private_data;
704 int pos = 0;
705 char buf[32];
706 const size_t bufsz = sizeof(buf);
707
708 /* print which antennas were set for the scan command by the user */
709 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
710 if (mvm->scan_rx_ant & ANT_A)
711 pos += scnprintf(buf + pos, bufsz - pos, "A");
712 if (mvm->scan_rx_ant & ANT_B)
713 pos += scnprintf(buf + pos, bufsz - pos, "B");
714 if (mvm->scan_rx_ant & ANT_C)
715 pos += scnprintf(buf + pos, bufsz - pos, "C");
716 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
717
718 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
719 }
720
721 static ssize_t
722 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
723 size_t count, loff_t *ppos)
724 {
725 u8 scan_rx_ant;
726
727 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
728 return -EINVAL;
729 if (scan_rx_ant > ANT_ABC)
730 return -EINVAL;
731 if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
732 return -EINVAL;
733
734 mvm->scan_rx_ant = scan_rx_ant;
735
736 return count;
737 }
738
739 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
740 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
741 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
742 char __user *user_buf,
743 size_t count, loff_t *ppos)
744 {
745 struct iwl_mvm *mvm = file->private_data;
746 struct iwl_bcast_filter_cmd cmd;
747 const struct iwl_fw_bcast_filter *filter;
748 char *buf;
749 int bufsz = 1024;
750 int i, j, pos = 0;
751 ssize_t ret;
752
753 buf = kzalloc(bufsz, GFP_KERNEL);
754 if (!buf)
755 return -ENOMEM;
756
757 mutex_lock(&mvm->mutex);
758 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
759 ADD_TEXT("None\n");
760 mutex_unlock(&mvm->mutex);
761 goto out;
762 }
763 mutex_unlock(&mvm->mutex);
764
765 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
766 filter = &cmd.filters[i];
767
768 ADD_TEXT("Filter [%d]:\n", i);
769 ADD_TEXT("\tDiscard=%d\n", filter->discard);
770 ADD_TEXT("\tFrame Type: %s\n",
771 filter->frame_type ? "IPv4" : "Generic");
772
773 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
774 const struct iwl_fw_bcast_filter_attr *attr;
775
776 attr = &filter->attrs[j];
777 if (!attr->mask)
778 break;
779
780 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
781 j, attr->offset,
782 attr->offset_type ? "IP End" :
783 "Payload Start",
784 be32_to_cpu(attr->mask),
785 be32_to_cpu(attr->val),
786 le16_to_cpu(attr->reserved1));
787 }
788 }
789 out:
790 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
791 kfree(buf);
792 return ret;
793 }
794
795 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
796 size_t count, loff_t *ppos)
797 {
798 int pos, next_pos;
799 struct iwl_fw_bcast_filter filter = {};
800 struct iwl_bcast_filter_cmd cmd;
801 u32 filter_id, attr_id, mask, value;
802 int err = 0;
803
804 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
805 &filter.frame_type, &pos) != 3)
806 return -EINVAL;
807
808 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
809 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
810 return -EINVAL;
811
812 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
813 attr_id++) {
814 struct iwl_fw_bcast_filter_attr *attr =
815 &filter.attrs[attr_id];
816
817 if (pos >= count)
818 break;
819
820 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
821 &attr->offset, &attr->offset_type,
822 &mask, &value, &next_pos) != 4)
823 return -EINVAL;
824
825 attr->mask = cpu_to_be32(mask);
826 attr->val = cpu_to_be32(value);
827 if (mask)
828 filter.num_attrs++;
829
830 pos += next_pos;
831 }
832
833 mutex_lock(&mvm->mutex);
834 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
835 &filter, sizeof(filter));
836
837 /* send updated bcast filtering configuration */
838 if (mvm->dbgfs_bcast_filtering.override &&
839 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
840 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
841 sizeof(cmd), &cmd);
842 mutex_unlock(&mvm->mutex);
843
844 return err ?: count;
845 }
846
847 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
848 char __user *user_buf,
849 size_t count, loff_t *ppos)
850 {
851 struct iwl_mvm *mvm = file->private_data;
852 struct iwl_bcast_filter_cmd cmd;
853 char *buf;
854 int bufsz = 1024;
855 int i, pos = 0;
856 ssize_t ret;
857
858 buf = kzalloc(bufsz, GFP_KERNEL);
859 if (!buf)
860 return -ENOMEM;
861
862 mutex_lock(&mvm->mutex);
863 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
864 ADD_TEXT("None\n");
865 mutex_unlock(&mvm->mutex);
866 goto out;
867 }
868 mutex_unlock(&mvm->mutex);
869
870 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
871 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
872
873 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
874 i, mac->default_discard, mac->attached_filters);
875 }
876 out:
877 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
878 kfree(buf);
879 return ret;
880 }
881
882 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
883 char *buf, size_t count,
884 loff_t *ppos)
885 {
886 struct iwl_bcast_filter_cmd cmd;
887 struct iwl_fw_bcast_mac mac = {};
888 u32 mac_id, attached_filters;
889 int err = 0;
890
891 if (!mvm->bcast_filters)
892 return -ENOENT;
893
894 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
895 &attached_filters) != 3)
896 return -EINVAL;
897
898 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
899 mac.default_discard > 1 ||
900 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
901 return -EINVAL;
902
903 mac.attached_filters = cpu_to_le16(attached_filters);
904
905 mutex_lock(&mvm->mutex);
906 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
907 &mac, sizeof(mac));
908
909 /* send updated bcast filtering configuration */
910 if (mvm->dbgfs_bcast_filtering.override &&
911 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
912 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
913 sizeof(cmd), &cmd);
914 mutex_unlock(&mvm->mutex);
915
916 return err ?: count;
917 }
918 #endif
919
920 #ifdef CONFIG_PM_SLEEP
921 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
922 size_t count, loff_t *ppos)
923 {
924 int store;
925
926 if (sscanf(buf, "%d", &store) != 1)
927 return -EINVAL;
928
929 mvm->store_d3_resume_sram = store;
930
931 return count;
932 }
933
934 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
935 size_t count, loff_t *ppos)
936 {
937 struct iwl_mvm *mvm = file->private_data;
938 const struct fw_img *img;
939 int ofs, len, pos = 0;
940 size_t bufsz, ret;
941 char *buf;
942 u8 *ptr = mvm->d3_resume_sram;
943
944 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
945 len = img->sec[IWL_UCODE_SECTION_DATA].len;
946
947 bufsz = len * 4 + 256;
948 buf = kzalloc(bufsz, GFP_KERNEL);
949 if (!buf)
950 return -ENOMEM;
951
952 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
953 mvm->store_d3_resume_sram ? "en" : "dis");
954
955 if (ptr) {
956 for (ofs = 0; ofs < len; ofs += 16) {
957 pos += scnprintf(buf + pos, bufsz - pos,
958 "0x%.4x ", ofs);
959 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
960 bufsz - pos, false);
961 pos += strlen(buf + pos);
962 if (bufsz - pos > 0)
963 buf[pos++] = '\n';
964 }
965 } else {
966 pos += scnprintf(buf + pos, bufsz - pos,
967 "(no data captured)\n");
968 }
969
970 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
971
972 kfree(buf);
973
974 return ret;
975 }
976 #endif
977
978 #define PRINT_MVM_REF(ref) do { \
979 if (test_bit(ref, mvm->ref_bitmap)) \
980 pos += scnprintf(buf + pos, bufsz - pos, \
981 "\t(0x%lx) %s\n", \
982 BIT(ref), #ref); \
983 } while (0)
984
985 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
986 char __user *user_buf,
987 size_t count, loff_t *ppos)
988 {
989 struct iwl_mvm *mvm = file->private_data;
990 int pos = 0;
991 char buf[256];
992 const size_t bufsz = sizeof(buf);
993
994 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",
995 mvm->ref_bitmap[0]);
996
997 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
998 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
999 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1000 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1001 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1002 PRINT_MVM_REF(IWL_MVM_REF_USER);
1003 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1004
1005 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1006 }
1007
1008 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1009 size_t count, loff_t *ppos)
1010 {
1011 unsigned long value;
1012 int ret;
1013 bool taken;
1014
1015 ret = kstrtoul(buf, 10, &value);
1016 if (ret < 0)
1017 return ret;
1018
1019 mutex_lock(&mvm->mutex);
1020
1021 taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap);
1022 if (value == 1 && !taken)
1023 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1024 else if (value == 0 && taken)
1025 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1026 else
1027 ret = -EINVAL;
1028
1029 mutex_unlock(&mvm->mutex);
1030
1031 if (ret < 0)
1032 return ret;
1033 return count;
1034 }
1035
1036 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1037 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1038 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1039 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1040 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1041 if (!debugfs_create_file(alias, mode, parent, mvm, \
1042 &iwl_dbgfs_##name##_ops)) \
1043 goto err; \
1044 } while (0)
1045 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1046 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1047
1048 static ssize_t
1049 iwl_dbgfs_prph_reg_read(struct file *file,
1050 char __user *user_buf,
1051 size_t count, loff_t *ppos)
1052 {
1053 struct iwl_mvm *mvm = file->private_data;
1054 int pos = 0;
1055 char buf[32];
1056 const size_t bufsz = sizeof(buf);
1057
1058 if (!mvm->dbgfs_prph_reg_addr)
1059 return -EINVAL;
1060
1061 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1062 mvm->dbgfs_prph_reg_addr,
1063 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1064
1065 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1066 }
1067
1068 static ssize_t
1069 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1070 size_t count, loff_t *ppos)
1071 {
1072 u8 args;
1073 u32 value;
1074
1075 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1076 /* if we only want to set the reg address - nothing more to do */
1077 if (args == 1)
1078 goto out;
1079
1080 /* otherwise, make sure we have both address and value */
1081 if (args != 2)
1082 return -EINVAL;
1083
1084 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1085 out:
1086 return count;
1087 }
1088
1089 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1090
1091 /* Device wide debugfs entries */
1092 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1093 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1094 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1095 MVM_DEBUGFS_READ_FILE_OPS(stations);
1096 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1097 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1098 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1099 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1100 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1101 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1102 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1103 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1104 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1105 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1106
1107 static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
1108 .open = iwl_dbgfs_fw_error_dump_open,
1109 .read = iwl_dbgfs_fw_error_dump_read,
1110 .release = iwl_dbgfs_fw_error_dump_release,
1111 };
1112
1113 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1114 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1115 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1116 #endif
1117
1118 #ifdef CONFIG_PM_SLEEP
1119 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1120 #endif
1121
1122 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1123 {
1124 struct dentry *bcast_dir __maybe_unused;
1125 char buf[100];
1126
1127 spin_lock_init(&mvm->drv_stats_lock);
1128
1129 mvm->debugfs_dir = dbgfs_dir;
1130
1131 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1132 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1133 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1134 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1135 MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
1136 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1137 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1138 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1139 S_IRUSR | S_IWUSR);
1140 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1141 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1142 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1143 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1144 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1145 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1146 S_IWUSR | S_IRUSR);
1147 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1148 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1149
1150 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1151 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1152 bcast_dir = debugfs_create_dir("bcast_filtering",
1153 mvm->debugfs_dir);
1154 if (!bcast_dir)
1155 goto err;
1156
1157 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1158 bcast_dir,
1159 &mvm->dbgfs_bcast_filtering.override))
1160 goto err;
1161
1162 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1163 bcast_dir, S_IWUSR | S_IRUSR);
1164 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1165 bcast_dir, S_IWUSR | S_IRUSR);
1166 }
1167 #endif
1168
1169 #ifdef CONFIG_PM_SLEEP
1170 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1171 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1172 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1173 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1174 goto err;
1175 #endif
1176
1177 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1178 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1179 goto err;
1180 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1181 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1182 goto err;
1183 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1184 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1185 goto err;
1186 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1187 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1188 goto err;
1189
1190 /*
1191 * Create a symlink with mac80211. It will be removed when mac80211
1192 * exists (before the opmode exists which removes the target.)
1193 */
1194 snprintf(buf, 100, "../../%s/%s",
1195 dbgfs_dir->d_parent->d_parent->d_name.name,
1196 dbgfs_dir->d_parent->d_name.name);
1197 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1198 goto err;
1199
1200 return 0;
1201 err:
1202 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1203 return -ENOMEM;
1204 }
Linux kernel - Deliverables
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