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Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
[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 "iwl-prph.h"
69 #include "debugfs.h"
70 #include "fw-error-dump.h"
71
72 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
73 size_t count, loff_t *ppos)
74 {
75 int ret;
76 u32 scd_q_msk;
77
78 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
79 return -EIO;
80
81 if (sscanf(buf, "%x", &scd_q_msk) != 1)
82 return -EINVAL;
83
84 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
85
86 mutex_lock(&mvm->mutex);
87 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
88 mutex_unlock(&mvm->mutex);
89
90 return ret;
91 }
92
93 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
94 size_t count, loff_t *ppos)
95 {
96 struct iwl_mvm_sta *mvmsta;
97 int sta_id, drain, ret;
98
99 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
100 return -EIO;
101
102 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
103 return -EINVAL;
104 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
105 return -EINVAL;
106 if (drain < 0 || drain > 1)
107 return -EINVAL;
108
109 mutex_lock(&mvm->mutex);
110
111 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
112
113 if (!mvmsta)
114 ret = -ENOENT;
115 else
116 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
117
118 mutex_unlock(&mvm->mutex);
119
120 return ret;
121 }
122
123 static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
124 {
125 struct iwl_mvm *mvm = inode->i_private;
126 int ret;
127
128 if (!mvm)
129 return -EINVAL;
130
131 mutex_lock(&mvm->mutex);
132 if (!mvm->fw_error_dump) {
133 ret = -ENODATA;
134 goto out;
135 }
136
137 file->private_data = mvm->fw_error_dump;
138 mvm->fw_error_dump = NULL;
139 ret = 0;
140
141 out:
142 mutex_unlock(&mvm->mutex);
143 return ret;
144 }
145
146 static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
147 char __user *user_buf,
148 size_t count, loff_t *ppos)
149 {
150 struct iwl_fw_error_dump_file *dump_file = file->private_data;
151
152 return simple_read_from_buffer(user_buf, count, ppos,
153 dump_file,
154 le32_to_cpu(dump_file->file_len));
155 }
156
157 static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
158 struct file *file)
159 {
160 vfree(file->private_data);
161
162 return 0;
163 }
164
165 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
166 size_t count, loff_t *ppos)
167 {
168 struct iwl_mvm *mvm = file->private_data;
169 const struct fw_img *img;
170 unsigned int ofs, len;
171 size_t ret;
172 u8 *ptr;
173
174 if (!mvm->ucode_loaded)
175 return -EINVAL;
176
177 /* default is to dump the entire data segment */
178 img = &mvm->fw->img[mvm->cur_ucode];
179 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
180 len = img->sec[IWL_UCODE_SECTION_DATA].len;
181
182 if (mvm->dbgfs_sram_len) {
183 ofs = mvm->dbgfs_sram_offset;
184 len = mvm->dbgfs_sram_len;
185 }
186
187 ptr = kzalloc(len, GFP_KERNEL);
188 if (!ptr)
189 return -ENOMEM;
190
191 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
192
193 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
194
195 kfree(ptr);
196
197 return ret;
198 }
199
200 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
201 size_t count, loff_t *ppos)
202 {
203 const struct fw_img *img;
204 u32 offset, len;
205 u32 img_offset, img_len;
206
207 if (!mvm->ucode_loaded)
208 return -EINVAL;
209
210 img = &mvm->fw->img[mvm->cur_ucode];
211 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
212 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
213
214 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
215 if ((offset & 0x3) || (len & 0x3))
216 return -EINVAL;
217
218 if (offset + len > img_offset + img_len)
219 return -EINVAL;
220
221 mvm->dbgfs_sram_offset = offset;
222 mvm->dbgfs_sram_len = len;
223 } else {
224 mvm->dbgfs_sram_offset = 0;
225 mvm->dbgfs_sram_len = 0;
226 }
227
228 return count;
229 }
230
231 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
232 size_t count, loff_t *ppos)
233 {
234 struct iwl_mvm *mvm = file->private_data;
235 struct ieee80211_sta *sta;
236 char buf[400];
237 int i, pos = 0, bufsz = sizeof(buf);
238
239 mutex_lock(&mvm->mutex);
240
241 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
242 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
243 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
244 lockdep_is_held(&mvm->mutex));
245 if (!sta)
246 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
247 else if (IS_ERR(sta))
248 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
249 PTR_ERR(sta));
250 else
251 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
252 sta->addr);
253 }
254
255 mutex_unlock(&mvm->mutex);
256
257 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
258 }
259
260 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
261 char __user *user_buf,
262 size_t count, loff_t *ppos)
263 {
264 struct iwl_mvm *mvm = file->private_data;
265 char buf[64];
266 int bufsz = sizeof(buf);
267 int pos = 0;
268
269 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
270 mvm->disable_power_off);
271 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
272 mvm->disable_power_off_d3);
273
274 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
275 }
276
277 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
278 size_t count, loff_t *ppos)
279 {
280 int ret, val;
281
282 if (!mvm->ucode_loaded)
283 return -EIO;
284
285 if (!strncmp("disable_power_off_d0=", buf, 21)) {
286 if (sscanf(buf + 21, "%d", &val) != 1)
287 return -EINVAL;
288 mvm->disable_power_off = val;
289 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
290 if (sscanf(buf + 21, "%d", &val) != 1)
291 return -EINVAL;
292 mvm->disable_power_off_d3 = val;
293 } else {
294 return -EINVAL;
295 }
296
297 mutex_lock(&mvm->mutex);
298 ret = iwl_mvm_power_update_device(mvm);
299 mutex_unlock(&mvm->mutex);
300
301 return ret ?: count;
302 }
303
304 #define BT_MBOX_MSG(_notif, _num, _field) \
305 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
306 >> BT_MBOX##_num##_##_field##_POS)
307
308
309 #define BT_MBOX_PRINT(_num, _field, _end) \
310 pos += scnprintf(buf + pos, bufsz - pos, \
311 "\t%s: %d%s", \
312 #_field, \
313 BT_MBOX_MSG(notif, _num, _field), \
314 true ? "\n" : ", ");
315
316 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
317 size_t count, loff_t *ppos)
318 {
319 struct iwl_mvm *mvm = file->private_data;
320 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
321 char *buf;
322 int ret, pos = 0, bufsz = sizeof(char) * 1024;
323
324 buf = kmalloc(bufsz, GFP_KERNEL);
325 if (!buf)
326 return -ENOMEM;
327
328 mutex_lock(&mvm->mutex);
329
330 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
331
332 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
333 BT_MBOX_PRINT(0, LE_PROF1, false);
334 BT_MBOX_PRINT(0, LE_PROF2, false);
335 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
336 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
337 BT_MBOX_PRINT(0, INBAND_S, false);
338 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
339 BT_MBOX_PRINT(0, LE_SCAN, false);
340 BT_MBOX_PRINT(0, LE_ADV, false);
341 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
342 BT_MBOX_PRINT(0, OPEN_CON_1, true);
343
344 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
345
346 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
347 BT_MBOX_PRINT(1, IP_SR, false);
348 BT_MBOX_PRINT(1, LE_MSTR, false);
349 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
350 BT_MBOX_PRINT(1, MSG_TYPE, false);
351 BT_MBOX_PRINT(1, SSN, true);
352
353 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
354
355 BT_MBOX_PRINT(2, SNIFF_ACT, false);
356 BT_MBOX_PRINT(2, PAG, false);
357 BT_MBOX_PRINT(2, INQUIRY, false);
358 BT_MBOX_PRINT(2, CONN, false);
359 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
360 BT_MBOX_PRINT(2, DISC, false);
361 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
362 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
363 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
364 BT_MBOX_PRINT(2, SCO_DURATION, true);
365
366 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
367
368 BT_MBOX_PRINT(3, SCO_STATE, false);
369 BT_MBOX_PRINT(3, SNIFF_STATE, false);
370 BT_MBOX_PRINT(3, A2DP_STATE, false);
371 BT_MBOX_PRINT(3, ACL_STATE, false);
372 BT_MBOX_PRINT(3, MSTR_STATE, false);
373 BT_MBOX_PRINT(3, OBX_STATE, false);
374 BT_MBOX_PRINT(3, OPEN_CON_2, false);
375 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
376 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
377 BT_MBOX_PRINT(3, INBAND_P, false);
378 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
379 BT_MBOX_PRINT(3, SSN_2, false);
380 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
381
382 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
383 notif->bt_status);
384 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
385 notif->bt_open_conn);
386 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
387 notif->bt_traffic_load);
388 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
389 notif->bt_agg_traffic_load);
390 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
391 notif->bt_ci_compliance);
392 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
393 le32_to_cpu(notif->primary_ch_lut));
394 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
395 le32_to_cpu(notif->secondary_ch_lut));
396 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
397 le32_to_cpu(notif->bt_activity_grading));
398 pos += scnprintf(buf+pos, bufsz-pos,
399 "antenna isolation = %d CORUN LUT index = %d\n",
400 mvm->last_ant_isol, mvm->last_corun_lut);
401
402 mutex_unlock(&mvm->mutex);
403
404 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
405 kfree(buf);
406
407 return ret;
408 }
409 #undef BT_MBOX_PRINT
410
411 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
412 size_t count, loff_t *ppos)
413 {
414 struct iwl_mvm *mvm = file->private_data;
415 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
416 char buf[256];
417 int bufsz = sizeof(buf);
418 int pos = 0;
419
420 mutex_lock(&mvm->mutex);
421
422 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
423 pos += scnprintf(buf+pos, bufsz-pos,
424 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
425 le64_to_cpu(cmd->bt_primary_ci),
426 !!cmd->co_run_bw_primary);
427 pos += scnprintf(buf+pos, bufsz-pos,
428 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
429 le64_to_cpu(cmd->bt_secondary_ci),
430 !!cmd->co_run_bw_secondary);
431
432 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
433 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
434 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
435 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
436 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
437
438 mutex_unlock(&mvm->mutex);
439
440 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
441 }
442
443 static ssize_t
444 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
445 size_t count, loff_t *ppos)
446 {
447 u32 bt_tx_prio;
448
449 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
450 return -EINVAL;
451 if (bt_tx_prio > 4)
452 return -EINVAL;
453
454 mvm->bt_tx_prio = bt_tx_prio;
455
456 return count;
457 }
458
459 #define PRINT_STATS_LE32(_str, _val) \
460 pos += scnprintf(buf + pos, bufsz - pos, \
461 fmt_table, _str, \
462 le32_to_cpu(_val))
463
464 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
465 char __user *user_buf, size_t count,
466 loff_t *ppos)
467 {
468 struct iwl_mvm *mvm = file->private_data;
469 static const char *fmt_table = "\t%-30s %10u\n";
470 static const char *fmt_header = "%-32s\n";
471 int pos = 0;
472 char *buf;
473 int ret;
474 /* 43 is the size of each data line, 33 is the size of each header */
475 size_t bufsz =
476 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
477 (4 * 33) + 1;
478
479 struct mvm_statistics_rx_phy *ofdm;
480 struct mvm_statistics_rx_phy *cck;
481 struct mvm_statistics_rx_non_phy *general;
482 struct mvm_statistics_rx_ht_phy *ht;
483
484 buf = kzalloc(bufsz, GFP_KERNEL);
485 if (!buf)
486 return -ENOMEM;
487
488 mutex_lock(&mvm->mutex);
489
490 ofdm = &mvm->rx_stats.ofdm;
491 cck = &mvm->rx_stats.cck;
492 general = &mvm->rx_stats.general;
493 ht = &mvm->rx_stats.ofdm_ht;
494
495 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
496 "Statistics_Rx - OFDM");
497 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
498 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
499 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
500 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
501 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
502 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
503 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
504 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
505 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
506 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
507 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
508 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
509 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
510 ofdm->rxe_frame_limit_overrun);
511 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
512 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
513 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
514 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
515 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
516 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
517 PRINT_STATS_LE32("reserved", ofdm->reserved);
518
519 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
520 "Statistics_Rx - CCK");
521 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
522 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
523 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
524 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
525 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
526 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
527 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
528 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
529 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
530 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
531 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
532 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
533 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
534 cck->rxe_frame_limit_overrun);
535 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
536 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
537 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
538 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
539 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
540 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
541 PRINT_STATS_LE32("reserved", cck->reserved);
542
543 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
544 "Statistics_Rx - GENERAL");
545 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
546 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
547 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
548 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
549 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
550 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
551 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
552 PRINT_STATS_LE32("adc_rx_saturation_time",
553 general->adc_rx_saturation_time);
554 PRINT_STATS_LE32("ina_detection_search_time",
555 general->ina_detection_search_time);
556 PRINT_STATS_LE32("beacon_silence_rssi_a",
557 general->beacon_silence_rssi_a);
558 PRINT_STATS_LE32("beacon_silence_rssi_b",
559 general->beacon_silence_rssi_b);
560 PRINT_STATS_LE32("beacon_silence_rssi_c",
561 general->beacon_silence_rssi_c);
562 PRINT_STATS_LE32("interference_data_flag",
563 general->interference_data_flag);
564 PRINT_STATS_LE32("channel_load", general->channel_load);
565 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
566 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
567 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
568 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
569 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
570 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
571 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
572 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
573 PRINT_STATS_LE32("mac_id", general->mac_id);
574 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
575
576 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
577 "Statistics_Rx - HT");
578 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
579 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
580 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
581 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
582 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
583 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
584 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
585 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
586 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
587 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
588
589 mutex_unlock(&mvm->mutex);
590
591 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
592 kfree(buf);
593
594 return ret;
595 }
596 #undef PRINT_STAT_LE32
597
598 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
599 char __user *user_buf, size_t count,
600 loff_t *ppos,
601 struct iwl_mvm_frame_stats *stats)
602 {
603 char *buff, *pos, *endpos;
604 int idx, i;
605 int ret;
606 static const size_t bufsz = 1024;
607
608 buff = kmalloc(bufsz, GFP_KERNEL);
609 if (!buff)
610 return -ENOMEM;
611
612 spin_lock_bh(&mvm->drv_stats_lock);
613
614 pos = buff;
615 endpos = pos + bufsz;
616
617 pos += scnprintf(pos, endpos - pos,
618 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
619 stats->legacy_frames,
620 stats->ht_frames,
621 stats->vht_frames);
622 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
623 stats->bw_20_frames,
624 stats->bw_40_frames,
625 stats->bw_80_frames);
626 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
627 stats->ngi_frames,
628 stats->sgi_frames);
629 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
630 stats->siso_frames,
631 stats->mimo2_frames);
632 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
633 stats->fail_frames,
634 stats->success_frames);
635 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
636 stats->agg_frames);
637 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
638 stats->ampdu_count);
639 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
640 stats->ampdu_count > 0 ?
641 (stats->agg_frames / stats->ampdu_count) : 0);
642
643 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
644
645 idx = stats->last_frame_idx - 1;
646 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
647 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
648 if (stats->last_rates[idx] == 0)
649 continue;
650 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
651 (int)(ARRAY_SIZE(stats->last_rates) - i));
652 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
653 }
654 spin_unlock_bh(&mvm->drv_stats_lock);
655
656 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
657 kfree(buff);
658
659 return ret;
660 }
661
662 static ssize_t iwl_dbgfs_drv_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
668 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
669 &mvm->drv_rx_stats);
670 }
671
672 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
673 size_t count, loff_t *ppos)
674 {
675 int ret;
676
677 mutex_lock(&mvm->mutex);
678
679 /* allow one more restart that we're provoking here */
680 if (mvm->restart_fw >= 0)
681 mvm->restart_fw++;
682
683 /* take the return value to make compiler happy - it will fail anyway */
684 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
685
686 mutex_unlock(&mvm->mutex);
687
688 return count;
689 }
690
691 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
692 size_t count, loff_t *ppos)
693 {
694 iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
695
696 return count;
697 }
698
699 static ssize_t
700 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
701 char __user *user_buf,
702 size_t count, loff_t *ppos)
703 {
704 struct iwl_mvm *mvm = file->private_data;
705 int pos = 0;
706 char buf[32];
707 const size_t bufsz = sizeof(buf);
708
709 /* print which antennas were set for the scan command by the user */
710 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
711 if (mvm->scan_rx_ant & ANT_A)
712 pos += scnprintf(buf + pos, bufsz - pos, "A");
713 if (mvm->scan_rx_ant & ANT_B)
714 pos += scnprintf(buf + pos, bufsz - pos, "B");
715 if (mvm->scan_rx_ant & ANT_C)
716 pos += scnprintf(buf + pos, bufsz - pos, "C");
717 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
718
719 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
720 }
721
722 static ssize_t
723 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
724 size_t count, loff_t *ppos)
725 {
726 u8 scan_rx_ant;
727
728 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
729 return -EINVAL;
730 if (scan_rx_ant > ANT_ABC)
731 return -EINVAL;
732 if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
733 return -EINVAL;
734
735 mvm->scan_rx_ant = scan_rx_ant;
736
737 return count;
738 }
739
740 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
741 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
742 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
743 char __user *user_buf,
744 size_t count, loff_t *ppos)
745 {
746 struct iwl_mvm *mvm = file->private_data;
747 struct iwl_bcast_filter_cmd cmd;
748 const struct iwl_fw_bcast_filter *filter;
749 char *buf;
750 int bufsz = 1024;
751 int i, j, pos = 0;
752 ssize_t ret;
753
754 buf = kzalloc(bufsz, GFP_KERNEL);
755 if (!buf)
756 return -ENOMEM;
757
758 mutex_lock(&mvm->mutex);
759 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
760 ADD_TEXT("None\n");
761 mutex_unlock(&mvm->mutex);
762 goto out;
763 }
764 mutex_unlock(&mvm->mutex);
765
766 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
767 filter = &cmd.filters[i];
768
769 ADD_TEXT("Filter [%d]:\n", i);
770 ADD_TEXT("\tDiscard=%d\n", filter->discard);
771 ADD_TEXT("\tFrame Type: %s\n",
772 filter->frame_type ? "IPv4" : "Generic");
773
774 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
775 const struct iwl_fw_bcast_filter_attr *attr;
776
777 attr = &filter->attrs[j];
778 if (!attr->mask)
779 break;
780
781 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
782 j, attr->offset,
783 attr->offset_type ? "IP End" :
784 "Payload Start",
785 be32_to_cpu(attr->mask),
786 be32_to_cpu(attr->val),
787 le16_to_cpu(attr->reserved1));
788 }
789 }
790 out:
791 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
792 kfree(buf);
793 return ret;
794 }
795
796 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
797 size_t count, loff_t *ppos)
798 {
799 int pos, next_pos;
800 struct iwl_fw_bcast_filter filter = {};
801 struct iwl_bcast_filter_cmd cmd;
802 u32 filter_id, attr_id, mask, value;
803 int err = 0;
804
805 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
806 &filter.frame_type, &pos) != 3)
807 return -EINVAL;
808
809 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
810 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
811 return -EINVAL;
812
813 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
814 attr_id++) {
815 struct iwl_fw_bcast_filter_attr *attr =
816 &filter.attrs[attr_id];
817
818 if (pos >= count)
819 break;
820
821 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
822 &attr->offset, &attr->offset_type,
823 &mask, &value, &next_pos) != 4)
824 return -EINVAL;
825
826 attr->mask = cpu_to_be32(mask);
827 attr->val = cpu_to_be32(value);
828 if (mask)
829 filter.num_attrs++;
830
831 pos += next_pos;
832 }
833
834 mutex_lock(&mvm->mutex);
835 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
836 &filter, sizeof(filter));
837
838 /* send updated bcast filtering configuration */
839 if (mvm->dbgfs_bcast_filtering.override &&
840 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
841 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
842 sizeof(cmd), &cmd);
843 mutex_unlock(&mvm->mutex);
844
845 return err ?: count;
846 }
847
848 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
849 char __user *user_buf,
850 size_t count, loff_t *ppos)
851 {
852 struct iwl_mvm *mvm = file->private_data;
853 struct iwl_bcast_filter_cmd cmd;
854 char *buf;
855 int bufsz = 1024;
856 int i, pos = 0;
857 ssize_t ret;
858
859 buf = kzalloc(bufsz, GFP_KERNEL);
860 if (!buf)
861 return -ENOMEM;
862
863 mutex_lock(&mvm->mutex);
864 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
865 ADD_TEXT("None\n");
866 mutex_unlock(&mvm->mutex);
867 goto out;
868 }
869 mutex_unlock(&mvm->mutex);
870
871 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
872 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
873
874 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
875 i, mac->default_discard, mac->attached_filters);
876 }
877 out:
878 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
879 kfree(buf);
880 return ret;
881 }
882
883 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
884 char *buf, size_t count,
885 loff_t *ppos)
886 {
887 struct iwl_bcast_filter_cmd cmd;
888 struct iwl_fw_bcast_mac mac = {};
889 u32 mac_id, attached_filters;
890 int err = 0;
891
892 if (!mvm->bcast_filters)
893 return -ENOENT;
894
895 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
896 &attached_filters) != 3)
897 return -EINVAL;
898
899 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
900 mac.default_discard > 1 ||
901 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
902 return -EINVAL;
903
904 mac.attached_filters = cpu_to_le16(attached_filters);
905
906 mutex_lock(&mvm->mutex);
907 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
908 &mac, sizeof(mac));
909
910 /* send updated bcast filtering configuration */
911 if (mvm->dbgfs_bcast_filtering.override &&
912 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
913 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
914 sizeof(cmd), &cmd);
915 mutex_unlock(&mvm->mutex);
916
917 return err ?: count;
918 }
919 #endif
920
921 #ifdef CONFIG_PM_SLEEP
922 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
923 size_t count, loff_t *ppos)
924 {
925 int store;
926
927 if (sscanf(buf, "%d", &store) != 1)
928 return -EINVAL;
929
930 mvm->store_d3_resume_sram = store;
931
932 return count;
933 }
934
935 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
936 size_t count, loff_t *ppos)
937 {
938 struct iwl_mvm *mvm = file->private_data;
939 const struct fw_img *img;
940 int ofs, len, pos = 0;
941 size_t bufsz, ret;
942 char *buf;
943 u8 *ptr = mvm->d3_resume_sram;
944
945 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
946 len = img->sec[IWL_UCODE_SECTION_DATA].len;
947
948 bufsz = len * 4 + 256;
949 buf = kzalloc(bufsz, GFP_KERNEL);
950 if (!buf)
951 return -ENOMEM;
952
953 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
954 mvm->store_d3_resume_sram ? "en" : "dis");
955
956 if (ptr) {
957 for (ofs = 0; ofs < len; ofs += 16) {
958 pos += scnprintf(buf + pos, bufsz - pos,
959 "0x%.4x ", ofs);
960 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
961 bufsz - pos, false);
962 pos += strlen(buf + pos);
963 if (bufsz - pos > 0)
964 buf[pos++] = '\n';
965 }
966 } else {
967 pos += scnprintf(buf + pos, bufsz - pos,
968 "(no data captured)\n");
969 }
970
971 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
972
973 kfree(buf);
974
975 return ret;
976 }
977 #endif
978
979 #define PRINT_MVM_REF(ref) do { \
980 if (test_bit(ref, mvm->ref_bitmap)) \
981 pos += scnprintf(buf + pos, bufsz - pos, \
982 "\t(0x%lx) %s\n", \
983 BIT(ref), #ref); \
984 } while (0)
985
986 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
987 char __user *user_buf,
988 size_t count, loff_t *ppos)
989 {
990 struct iwl_mvm *mvm = file->private_data;
991 int pos = 0;
992 char buf[256];
993 const size_t bufsz = sizeof(buf);
994
995 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",
996 mvm->ref_bitmap[0]);
997
998 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
999 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1000 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1001 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1002 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1003 PRINT_MVM_REF(IWL_MVM_REF_USER);
1004 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1005
1006 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1007 }
1008
1009 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1010 size_t count, loff_t *ppos)
1011 {
1012 unsigned long value;
1013 int ret;
1014 bool taken;
1015
1016 ret = kstrtoul(buf, 10, &value);
1017 if (ret < 0)
1018 return ret;
1019
1020 mutex_lock(&mvm->mutex);
1021
1022 taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap);
1023 if (value == 1 && !taken)
1024 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1025 else if (value == 0 && taken)
1026 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1027 else
1028 ret = -EINVAL;
1029
1030 mutex_unlock(&mvm->mutex);
1031
1032 if (ret < 0)
1033 return ret;
1034 return count;
1035 }
1036
1037 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1038 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1039 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1040 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1041 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1042 if (!debugfs_create_file(alias, mode, parent, mvm, \
1043 &iwl_dbgfs_##name##_ops)) \
1044 goto err; \
1045 } while (0)
1046 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1047 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1048
1049 static ssize_t
1050 iwl_dbgfs_prph_reg_read(struct file *file,
1051 char __user *user_buf,
1052 size_t count, loff_t *ppos)
1053 {
1054 struct iwl_mvm *mvm = file->private_data;
1055 int pos = 0;
1056 char buf[32];
1057 const size_t bufsz = sizeof(buf);
1058
1059 if (!mvm->dbgfs_prph_reg_addr)
1060 return -EINVAL;
1061
1062 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1063 mvm->dbgfs_prph_reg_addr,
1064 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1065
1066 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1067 }
1068
1069 static ssize_t
1070 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1071 size_t count, loff_t *ppos)
1072 {
1073 u8 args;
1074 u32 value;
1075
1076 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1077 /* if we only want to set the reg address - nothing more to do */
1078 if (args == 1)
1079 goto out;
1080
1081 /* otherwise, make sure we have both address and value */
1082 if (args != 2)
1083 return -EINVAL;
1084
1085 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1086 out:
1087 return count;
1088 }
1089
1090 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1091
1092 /* Device wide debugfs entries */
1093 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1094 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1095 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1096 MVM_DEBUGFS_READ_FILE_OPS(stations);
1097 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1098 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1099 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1100 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1101 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1102 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1103 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1104 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1105 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1106 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1107
1108 static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
1109 .open = iwl_dbgfs_fw_error_dump_open,
1110 .read = iwl_dbgfs_fw_error_dump_read,
1111 .release = iwl_dbgfs_fw_error_dump_release,
1112 };
1113
1114 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1115 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1116 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1117 #endif
1118
1119 #ifdef CONFIG_PM_SLEEP
1120 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1121 #endif
1122
1123 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1124 {
1125 struct dentry *bcast_dir __maybe_unused;
1126 char buf[100];
1127
1128 spin_lock_init(&mvm->drv_stats_lock);
1129
1130 mvm->debugfs_dir = dbgfs_dir;
1131
1132 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1133 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1134 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1135 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1136 MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
1137 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1138 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1139 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1140 S_IRUSR | S_IWUSR);
1141 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1142 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1143 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1144 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1145 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1146 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1147 S_IWUSR | S_IRUSR);
1148 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1149 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1150
1151 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1152 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1153 bcast_dir = debugfs_create_dir("bcast_filtering",
1154 mvm->debugfs_dir);
1155 if (!bcast_dir)
1156 goto err;
1157
1158 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1159 bcast_dir,
1160 &mvm->dbgfs_bcast_filtering.override))
1161 goto err;
1162
1163 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1164 bcast_dir, S_IWUSR | S_IRUSR);
1165 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1166 bcast_dir, S_IWUSR | S_IRUSR);
1167 }
1168 #endif
1169
1170 #ifdef CONFIG_PM_SLEEP
1171 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1172 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1173 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1174 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1175 goto err;
1176 #endif
1177
1178 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1179 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1180 goto err;
1181 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1182 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1183 goto err;
1184 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1185 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1186 goto err;
1187 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1188 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1189 goto err;
1190
1191 /*
1192 * Create a symlink with mac80211. It will be removed when mac80211
1193 * exists (before the opmode exists which removes the target.)
1194 */
1195 snprintf(buf, 100, "../../%s/%s",
1196 dbgfs_dir->d_parent->d_parent->d_name.name,
1197 dbgfs_dir->d_parent->d_name.name);
1198 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1199 goto err;
1200
1201 return 0;
1202 err:
1203 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1204 return -ENOMEM;
1205 }
Linux kernel - Deliverables
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