1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/vmalloc.h>
8 #include <linux/err.h>
9 #include <linux/ieee80211.h>
10 #include <linux/netdevice.h>
11 #include <linux/dmi.h>
12
13 #include "mvm.h"
14 #include "sta.h"
15 #include "iwl-io.h"
16 #include "debugfs.h"
17 #include "iwl-modparams.h"
18 #include "iwl-drv.h"
19 #include "fw/error-dump.h"
20 #include "fw/api/phy-ctxt.h"
21
iwl_dbgfs_ctdp_budget_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)22 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file,
23 char __user *user_buf,
24 size_t count, loff_t *ppos)
25 {
26 struct iwl_mvm *mvm = file->private_data;
27 char buf[16];
28 int pos, budget;
29
30 if (!iwl_mvm_is_ctdp_supported(mvm))
31 return -EOPNOTSUPP;
32
33 if (!iwl_mvm_firmware_running(mvm) ||
34 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
35 return -EIO;
36
37 mutex_lock(&mvm->mutex);
38 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0);
39 mutex_unlock(&mvm->mutex);
40
41 if (budget < 0)
42 return budget;
43
44 pos = scnprintf(buf, sizeof(buf), "%d\n", budget);
45
46 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
47 }
48
iwl_dbgfs_stop_ctdp_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)49 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf,
50 size_t count, loff_t *ppos)
51 {
52 int ret;
53 bool force;
54
55 if (!kstrtobool(buf, &force))
56 IWL_DEBUG_INFO(mvm,
57 "force start is %d [0=disabled, 1=enabled]\n",
58 force);
59
60 /* we allow skipping cap support check and force stop ctdp
61 * statistics collection and with guerantee that it is
62 * safe to use.
63 */
64 if (!force && !iwl_mvm_is_ctdp_supported(mvm))
65 return -EOPNOTSUPP;
66
67 if (!iwl_mvm_firmware_running(mvm) ||
68 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
69 return -EIO;
70
71 mutex_lock(&mvm->mutex);
72 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0);
73 mutex_unlock(&mvm->mutex);
74
75 return ret ?: count;
76 }
77
iwl_dbgfs_start_ctdp_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)78 static ssize_t iwl_dbgfs_start_ctdp_write(struct iwl_mvm *mvm,
79 char *buf, size_t count,
80 loff_t *ppos)
81 {
82 int ret;
83 bool force;
84
85 if (!kstrtobool(buf, &force))
86 IWL_DEBUG_INFO(mvm,
87 "force start is %d [0=disabled, 1=enabled]\n",
88 force);
89
90 /* we allow skipping cap support check and force enable ctdp
91 * for statistics collection and with guerantee that it is
92 * safe to use.
93 */
94 if (!force && !iwl_mvm_is_ctdp_supported(mvm))
95 return -EOPNOTSUPP;
96
97 if (!iwl_mvm_firmware_running(mvm) ||
98 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
99 return -EIO;
100
101 mutex_lock(&mvm->mutex);
102 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, 0);
103 mutex_unlock(&mvm->mutex);
104
105 return ret ?: count;
106 }
107
iwl_dbgfs_force_ctkill_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)108 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf,
109 size_t count, loff_t *ppos)
110 {
111 if (!iwl_mvm_firmware_running(mvm) ||
112 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
113 return -EIO;
114
115 iwl_mvm_enter_ctkill(mvm);
116
117 return count;
118 }
119
iwl_dbgfs_tx_flush_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)120 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
121 size_t count, loff_t *ppos)
122 {
123 int ret;
124 u32 flush_arg;
125
126 if (!iwl_mvm_firmware_running(mvm) ||
127 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)
128 return -EIO;
129
130 if (kstrtou32(buf, 0, &flush_arg))
131 return -EINVAL;
132
133 if (iwl_mvm_has_new_tx_api(mvm)) {
134 IWL_DEBUG_TX_QUEUES(mvm,
135 "FLUSHING all tids queues on sta_id = %d\n",
136 flush_arg);
137 mutex_lock(&mvm->mutex);
138 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF)
139 ? : count;
140 mutex_unlock(&mvm->mutex);
141 return ret;
142 }
143
144 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n",
145 flush_arg);
146
147 mutex_lock(&mvm->mutex);
148 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count;
149 mutex_unlock(&mvm->mutex);
150
151 return ret;
152 }
153
iwl_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)154 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
155 size_t count, loff_t *ppos)
156 {
157 struct iwl_mvm *mvm = file->private_data;
158 const struct fw_img *img;
159 unsigned int ofs, len;
160 size_t ret;
161 u8 *ptr;
162
163 if (!iwl_mvm_firmware_running(mvm))
164 return -EINVAL;
165
166 /* default is to dump the entire data segment */
167 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
168 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
169 len = img->sec[IWL_UCODE_SECTION_DATA].len;
170
171 if (mvm->dbgfs_sram_len) {
172 ofs = mvm->dbgfs_sram_offset;
173 len = mvm->dbgfs_sram_len;
174 }
175
176 ptr = kzalloc(len, GFP_KERNEL);
177 if (!ptr)
178 return -ENOMEM;
179
180 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
181
182 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
183
184 kfree(ptr);
185
186 return ret;
187 }
188
iwl_dbgfs_sram_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)189 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
190 size_t count, loff_t *ppos)
191 {
192 const struct fw_img *img;
193 u32 offset, len;
194 u32 img_offset, img_len;
195
196 if (!iwl_mvm_firmware_running(mvm))
197 return -EINVAL;
198
199 img = &mvm->fw->img[mvm->fwrt.cur_fw_img];
200 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
201 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
202
203 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
204 if ((offset & 0x3) || (len & 0x3))
205 return -EINVAL;
206
207 if (offset + len > img_offset + img_len)
208 return -EINVAL;
209
210 mvm->dbgfs_sram_offset = offset;
211 mvm->dbgfs_sram_len = len;
212 } else {
213 mvm->dbgfs_sram_offset = 0;
214 mvm->dbgfs_sram_len = 0;
215 }
216
217 return count;
218 }
219
iwl_dbgfs_set_nic_temperature_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)220 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
221 char __user *user_buf,
222 size_t count, loff_t *ppos)
223 {
224 struct iwl_mvm *mvm = file->private_data;
225 char buf[16];
226 int pos;
227
228 if (!mvm->temperature_test)
229 pos = scnprintf(buf, sizeof(buf), "disabled\n");
230 else
231 pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature);
232
233 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
234 }
235
236 /*
237 * Set NIC Temperature
238 * Cause the driver to ignore the actual NIC temperature reported by the FW
239 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
240 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
241 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
242 */
iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)243 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
244 char *buf, size_t count,
245 loff_t *ppos)
246 {
247 int temperature;
248
249 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test)
250 return -EIO;
251
252 if (kstrtoint(buf, 10, &temperature))
253 return -EINVAL;
254 /* not a legal temperature */
255 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
256 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
257 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
258 return -EINVAL;
259
260 mutex_lock(&mvm->mutex);
261 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
262 if (!mvm->temperature_test)
263 goto out;
264
265 mvm->temperature_test = false;
266 /* Since we can't read the temp while awake, just set
267 * it to zero until we get the next RX stats from the
268 * firmware.
269 */
270 mvm->temperature = 0;
271 } else {
272 mvm->temperature_test = true;
273 mvm->temperature = temperature;
274 }
275 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
276 mvm->temperature_test ? "En" : "Dis",
277 mvm->temperature);
278 /* handle the temperature change */
279 iwl_mvm_tt_handler(mvm);
280
281 out:
282 mutex_unlock(&mvm->mutex);
283
284 return count;
285 }
286
iwl_dbgfs_nic_temp_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)287 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
288 char __user *user_buf,
289 size_t count, loff_t *ppos)
290 {
291 struct iwl_mvm *mvm = file->private_data;
292 char buf[16];
293 int pos, ret;
294 s32 temp;
295
296 if (!iwl_mvm_firmware_running(mvm))
297 return -EIO;
298
299 mutex_lock(&mvm->mutex);
300 ret = iwl_mvm_get_temp(mvm, &temp);
301 mutex_unlock(&mvm->mutex);
302
303 if (ret)
304 return -EIO;
305
306 pos = scnprintf(buf, sizeof(buf), "%d\n", temp);
307
308 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
309 }
310
311 #ifdef CONFIG_ACPI
iwl_dbgfs_sar_geo_profile_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)312 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
313 char __user *user_buf,
314 size_t count, loff_t *ppos)
315 {
316 struct iwl_mvm *mvm = file->private_data;
317 char buf[256];
318 int pos = 0;
319 int bufsz = sizeof(buf);
320 int tbl_idx;
321
322 if (!iwl_mvm_firmware_running(mvm))
323 return -EIO;
324
325 mutex_lock(&mvm->mutex);
326 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
327 if (tbl_idx < 0) {
328 mutex_unlock(&mvm->mutex);
329 return tbl_idx;
330 }
331
332 if (!tbl_idx) {
333 pos = scnprintf(buf, bufsz,
334 "SAR geographic profile disabled\n");
335 } else {
336 pos += scnprintf(buf + pos, bufsz - pos,
337 "Use geographic profile %d\n", tbl_idx);
338 pos += scnprintf(buf + pos, bufsz - pos,
339 "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
340 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0],
341 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1],
342 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max);
343 pos += scnprintf(buf + pos, bufsz - pos,
344 "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n",
345 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0],
346 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1],
347 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max);
348 }
349 mutex_unlock(&mvm->mutex);
350
351 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
352 }
353
iwl_dbgfs_wifi_6e_enable_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)354 static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file,
355 char __user *user_buf,
356 size_t count, loff_t *ppos)
357 {
358 struct iwl_mvm *mvm = file->private_data;
359 int err, pos;
360 char buf[12];
361 u32 value;
362
363 err = iwl_bios_get_dsm(&mvm->fwrt, DSM_FUNC_ENABLE_6E, &value);
364 if (err)
365 return err;
366
367 pos = sprintf(buf, "0x%08x\n", value);
368
369 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
370 }
371 #endif
372
iwl_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)373 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
374 size_t count, loff_t *ppos)
375 {
376 struct iwl_mvm *mvm = file->private_data;
377 struct ieee80211_sta *sta;
378 char buf[400];
379 int i, pos = 0, bufsz = sizeof(buf);
380
381 mutex_lock(&mvm->mutex);
382
383 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
384 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
385 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
386 lockdep_is_held(&mvm->mutex));
387 if (!sta)
388 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
389 else if (IS_ERR(sta))
390 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
391 PTR_ERR(sta));
392 else
393 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
394 sta->addr);
395 }
396
397 mutex_unlock(&mvm->mutex);
398
399 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
400 }
401
iwl_dbgfs_rs_data_read(struct ieee80211_link_sta * link_sta,struct iwl_mvm_sta * mvmsta,struct iwl_mvm * mvm,struct iwl_mvm_link_sta * mvm_link_sta,char __user * user_buf,size_t count,loff_t * ppos)402 static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta,
403 struct iwl_mvm_sta *mvmsta,
404 struct iwl_mvm *mvm,
405 struct iwl_mvm_link_sta *mvm_link_sta,
406 char __user *user_buf,
407 size_t count, loff_t *ppos)
408 {
409 struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw;
410 static const size_t bufsz = 2048;
411 char *buff;
412 int desc = 0;
413 ssize_t ret;
414
415 buff = kmalloc(bufsz, GFP_KERNEL);
416 if (!buff)
417 return -ENOMEM;
418
419 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
420 lq_sta->pers.sta_id);
421 desc += scnprintf(buff + desc, bufsz - desc,
422 "fixed rate 0x%X\n",
423 lq_sta->pers.dbg_fixed_rate);
424 desc += scnprintf(buff + desc, bufsz - desc,
425 "A-MPDU size limit %d\n",
426 lq_sta->pers.dbg_agg_frame_count_lim);
427 desc += scnprintf(buff + desc, bufsz - desc,
428 "valid_tx_ant %s%s\n",
429 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
430 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "");
431 desc += scnprintf(buff + desc, bufsz - desc,
432 "last tx rate=0x%X ",
433 lq_sta->last_rate_n_flags);
434
435 desc += rs_pretty_print_rate(buff + desc, bufsz - desc,
436 lq_sta->last_rate_n_flags);
437 if (desc < bufsz - 1)
438 buff[desc++] = '\n';
439
440 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
441 kfree(buff);
442 return ret;
443 }
444
iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta * link_sta,struct iwl_mvm_sta * mvmsta,struct iwl_mvm * mvm,struct iwl_mvm_link_sta * mvm_link_sta,char * buf,size_t count,loff_t * ppos)445 static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta,
446 struct iwl_mvm_sta *mvmsta,
447 struct iwl_mvm *mvm,
448 struct iwl_mvm_link_sta *mvm_link_sta,
449 char *buf, size_t count,
450 loff_t *ppos)
451 {
452 int i;
453 u16 amsdu_len;
454
455 if (kstrtou16(buf, 0, &amsdu_len))
456 return -EINVAL;
457
458 /* only change from debug set <-> debug unset */
459 if (amsdu_len && mvm_link_sta->orig_amsdu_len)
460 return -EBUSY;
461
462 if (amsdu_len) {
463 mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len;
464 link_sta->agg.max_amsdu_len = amsdu_len;
465 link_sta->agg.max_amsdu_len = amsdu_len;
466 for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++)
467 link_sta->agg.max_tid_amsdu_len[i] = amsdu_len;
468 } else {
469 link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len;
470 mvm_link_sta->orig_amsdu_len = 0;
471 }
472
473 ieee80211_sta_recalc_aggregates(link_sta->sta);
474
475 return count;
476 }
477
iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta * link_sta,struct iwl_mvm_sta * mvmsta,struct iwl_mvm * mvm,struct iwl_mvm_link_sta * mvm_link_sta,char __user * user_buf,size_t count,loff_t * ppos)478 static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta,
479 struct iwl_mvm_sta *mvmsta,
480 struct iwl_mvm *mvm,
481 struct iwl_mvm_link_sta *mvm_link_sta,
482 char __user *user_buf,
483 size_t count, loff_t *ppos)
484 {
485 char buf[32];
486 int pos;
487
488 pos = scnprintf(buf, sizeof(buf), "current %d ",
489 link_sta->agg.max_amsdu_len);
490 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
491 mvm_link_sta->orig_amsdu_len);
492
493 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
494 }
495
iwl_dbgfs_disable_power_off_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)496 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
497 char __user *user_buf,
498 size_t count, loff_t *ppos)
499 {
500 struct iwl_mvm *mvm = file->private_data;
501 char buf[64];
502 int bufsz = sizeof(buf);
503 int pos = 0;
504
505 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
506 mvm->disable_power_off);
507 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
508 mvm->disable_power_off_d3);
509
510 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
511 }
512
iwl_dbgfs_disable_power_off_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)513 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
514 size_t count, loff_t *ppos)
515 {
516 int ret, val;
517
518 if (!iwl_mvm_firmware_running(mvm))
519 return -EIO;
520
521 if (!strncmp("disable_power_off_d0=", buf, 21)) {
522 if (sscanf(buf + 21, "%d", &val) != 1)
523 return -EINVAL;
524 mvm->disable_power_off = val;
525 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
526 if (sscanf(buf + 21, "%d", &val) != 1)
527 return -EINVAL;
528 mvm->disable_power_off_d3 = val;
529 } else {
530 return -EINVAL;
531 }
532
533 mutex_lock(&mvm->mutex);
534 ret = iwl_mvm_power_update_device(mvm);
535 mutex_unlock(&mvm->mutex);
536
537 return ret ?: count;
538 }
539
iwl_dbgfs_fw_ver_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)540 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
541 size_t count, loff_t *ppos)
542 {
543 struct iwl_mvm *mvm = file->private_data;
544 char *buff, *pos, *endpos;
545 static const size_t bufsz = 1024;
546 int ret;
547
548 buff = kmalloc(bufsz, GFP_KERNEL);
549 if (!buff)
550 return -ENOMEM;
551
552 pos = buff;
553 endpos = pos + bufsz;
554
555 pos += scnprintf(pos, endpos - pos, "FW id: %s\n",
556 mvm->fwrt.fw->fw_version);
557 pos += scnprintf(pos, endpos - pos, "FW: %s\n",
558 mvm->fwrt.fw->human_readable);
559 pos += scnprintf(pos, endpos - pos, "Device: %s\n",
560 mvm->fwrt.trans->name);
561 pos += scnprintf(pos, endpos - pos, "Bus: %s\n",
562 #if defined(__linux__)
563 mvm->fwrt.dev->bus->name);
564 #elif defined(__FreeBSD__)
565 "<bus>");
566 #endif
567
568 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
569 kfree(buff);
570
571 return ret;
572 }
573
iwl_dbgfs_tas_get_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)574 static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file,
575 char __user *user_buf,
576 size_t count, loff_t *ppos)
577 {
578 struct iwl_mvm *mvm = file->private_data;
579 struct iwl_mvm_tas_status_resp tas_rsp;
580 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp;
581 static const size_t bufsz = 1024;
582 char *buff, *pos, *endpos;
583 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = {
584 [TAS_DISABLED_DUE_TO_BIOS] =
585 "Due To BIOS",
586 [TAS_DISABLED_DUE_TO_SAR_6DBM] =
587 "Due To SAR Limit Less Than 6 dBm",
588 [TAS_DISABLED_REASON_INVALID] =
589 "N/A",
590 };
591 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = {
592 [TAS_DYNA_INACTIVE] = "INACTIVE",
593 [TAS_DYNA_INACTIVE_MVM_MODE] =
594 "inactive due to mvm mode",
595 [TAS_DYNA_INACTIVE_TRIGGER_MODE] =
596 "inactive due to trigger mode",
597 [TAS_DYNA_INACTIVE_BLOCK_LISTED] =
598 "inactive due to block listed",
599 [TAS_DYNA_INACTIVE_UHB_NON_US] =
600 "inactive due to uhb non US",
601 [TAS_DYNA_ACTIVE] = "ACTIVE",
602 };
603 struct iwl_host_cmd hcmd = {
604 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS),
605 .flags = CMD_WANT_SKB,
606 .len = { 0, },
607 .data = { NULL, },
608 };
609 int ret, i, tmp;
610 bool tas_enabled = false;
611 unsigned long dyn_status;
612
613 if (!iwl_mvm_firmware_running(mvm))
614 return -ENODEV;
615
616 mutex_lock(&mvm->mutex);
617 ret = iwl_mvm_send_cmd(mvm, &hcmd);
618 mutex_unlock(&mvm->mutex);
619 if (ret < 0)
620 return ret;
621
622 buff = kzalloc(bufsz, GFP_KERNEL);
623 if (!buff)
624 return -ENOMEM;
625 pos = buff;
626 endpos = pos + bufsz;
627
628 rsp = (void *)hcmd.resp_pkt->data;
629
630 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n");
631 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
632 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID &&
633 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) {
634 pos += scnprintf(pos, endpos - pos, "\tON for ");
635 switch (rsp->tas_status_mac[i].band) {
636 case TAS_LMAC_BAND_HB:
637 pos += scnprintf(pos, endpos - pos, "HB\n");
638 break;
639 case TAS_LMAC_BAND_LB:
640 pos += scnprintf(pos, endpos - pos, "LB\n");
641 break;
642 case TAS_LMAC_BAND_UHB:
643 pos += scnprintf(pos, endpos - pos, "UHB\n");
644 break;
645 case TAS_LMAC_BAND_INVALID:
646 pos += scnprintf(pos, endpos - pos,
647 "INVALID BAND\n");
648 break;
649 default:
650 pos += scnprintf(pos, endpos - pos,
651 "Unsupported band (%d)\n",
652 rsp->tas_status_mac[i].band);
653 goto out;
654 }
655 tas_enabled = true;
656 }
657 }
658 if (!tas_enabled)
659 pos += scnprintf(pos, endpos - pos, "\tOFF\n");
660
661 pos += scnprintf(pos, endpos - pos, "TAS Report\n");
662 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n",
663 rsp->tas_fw_version);
664 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n",
665 rsp->is_uhb_for_usa_enable ? "True" : "False");
666 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n",
667 le16_to_cpu(rsp->curr_mcc));
668
669 pos += scnprintf(pos, endpos - pos, "Block list entries:");
670 for (i = 0; i < IWL_WTAS_BLACK_LIST_MAX; i++)
671 pos += scnprintf(pos, endpos - pos, " 0x%x",
672 le16_to_cpu(rsp->block_list[i]));
673
674 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n",
675 dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>");
676 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n",
677 iwl_is_tas_approved() ? "YES" : "NO");
678 pos += scnprintf(pos, endpos - pos,
679 "\tDo TAS Support Dual Radio?: %s\n",
680 rsp->in_dual_radio ? "TRUE" : "FALSE");
681
682 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
683 if (rsp->tas_status_mac[i].static_status == 0) {
684 pos += scnprintf(pos, endpos - pos,
685 "Static status: disabled\n");
686 pos += scnprintf(pos, endpos - pos,
687 "Static disabled reason: %s (0)\n",
688 tas_dis_reason[0]);
689 goto out;
690 }
691
692 pos += scnprintf(pos, endpos - pos, "TAS status for ");
693 switch (rsp->tas_status_mac[i].band) {
694 case TAS_LMAC_BAND_HB:
695 pos += scnprintf(pos, endpos - pos, "High band\n");
696 break;
697 case TAS_LMAC_BAND_LB:
698 pos += scnprintf(pos, endpos - pos, "Low band\n");
699 break;
700 case TAS_LMAC_BAND_UHB:
701 pos += scnprintf(pos, endpos - pos,
702 "Ultra high band\n");
703 break;
704 case TAS_LMAC_BAND_INVALID:
705 pos += scnprintf(pos, endpos - pos,
706 "INVALID band\n");
707 break;
708 default:
709 pos += scnprintf(pos, endpos - pos,
710 "Unsupported band (%d)\n",
711 rsp->tas_status_mac[i].band);
712 goto out;
713 }
714 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n",
715 rsp->tas_status_mac[i].static_status ?
716 "En" : "Dis");
717 pos += scnprintf(pos, endpos - pos,
718 "\tStatic Disabled Reason: ");
719 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX)
720 pos += scnprintf(pos, endpos - pos, "%s (%d)\n",
721 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason],
722 rsp->tas_status_mac[i].static_dis_reason);
723 else
724 pos += scnprintf(pos, endpos - pos,
725 "unsupported value (%d)\n",
726 rsp->tas_status_mac[i].static_dis_reason);
727
728 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n");
729 dyn_status = (rsp->tas_status_mac[i].dynamic_status);
730 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) {
731 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX)
732 pos += scnprintf(pos, endpos - pos,
733 "\t%s (%d)\n",
734 tas_current_status[tmp], tmp);
735 }
736
737 pos += scnprintf(pos, endpos - pos,
738 "Is near disconnection?: %s\n",
739 rsp->tas_status_mac[i].near_disconnection ?
740 "True" : "False");
741 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit);
742 pos += scnprintf(pos, endpos - pos,
743 "Max. regulatory pwr limit (dBm): %d.%03d\n",
744 tmp / 8, 125 * (tmp % 8));
745 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit);
746 pos += scnprintf(pos, endpos - pos,
747 "SAR limit (dBm): %d.%03d\n",
748 tmp / 8, 125 * (tmp % 8));
749 }
750
751 out:
752 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
753 kfree(buff);
754 iwl_free_resp(&hcmd);
755 return ret;
756 }
757
iwl_dbgfs_phy_integration_ver_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)758 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
759 char __user *user_buf,
760 size_t count, loff_t *ppos)
761 {
762 struct iwl_mvm *mvm = file->private_data;
763 char *buf;
764 size_t bufsz;
765 int pos;
766 ssize_t ret;
767
768 bufsz = mvm->fw->phy_integration_ver_len + 2;
769 buf = kmalloc(bufsz, GFP_KERNEL);
770 if (!buf)
771 return -ENOMEM;
772
773 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
774 mvm->fw->phy_integration_ver);
775
776 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
777
778 kfree(buf);
779 return ret;
780 }
781
782 #define PRINT_STATS_LE32(_struct, _memb) \
783 pos += scnprintf(buf + pos, bufsz - pos, \
784 fmt_table, #_memb, \
785 le32_to_cpu(_struct->_memb))
786
iwl_dbgfs_fw_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)787 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
788 char __user *user_buf, size_t count,
789 loff_t *ppos)
790 {
791 struct iwl_mvm *mvm = file->private_data;
792 static const char *fmt_table = "\t%-30s %10u\n";
793 static const char *fmt_header = "%-32s\n";
794 int pos = 0;
795 char *buf;
796 int ret;
797 size_t bufsz;
798 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
799 WIDE_ID(SYSTEM_GROUP,
800 SYSTEM_STATISTICS_CMD),
801 IWL_FW_CMD_VER_UNKNOWN);
802
803 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
804 return -EOPNOTSUPP;
805
806 if (iwl_mvm_has_new_rx_stats_api(mvm))
807 bufsz = ((sizeof(struct mvm_statistics_rx) /
808 sizeof(__le32)) * 43) + (4 * 33) + 1;
809 else
810 /* 43 = size of each data line; 33 = size of each header */
811 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
812 sizeof(__le32)) * 43) + (4 * 33) + 1;
813
814 buf = kzalloc(bufsz, GFP_KERNEL);
815 if (!buf)
816 return -ENOMEM;
817
818 mutex_lock(&mvm->mutex);
819
820 if (iwl_mvm_firmware_running(mvm))
821 iwl_mvm_request_statistics(mvm, false);
822
823 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
824 "Statistics_Rx - OFDM");
825 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
826 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
827
828 PRINT_STATS_LE32(ofdm, ina_cnt);
829 PRINT_STATS_LE32(ofdm, fina_cnt);
830 PRINT_STATS_LE32(ofdm, plcp_err);
831 PRINT_STATS_LE32(ofdm, crc32_err);
832 PRINT_STATS_LE32(ofdm, overrun_err);
833 PRINT_STATS_LE32(ofdm, early_overrun_err);
834 PRINT_STATS_LE32(ofdm, crc32_good);
835 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
836 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
837 PRINT_STATS_LE32(ofdm, sfd_timeout);
838 PRINT_STATS_LE32(ofdm, fina_timeout);
839 PRINT_STATS_LE32(ofdm, unresponded_rts);
840 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
841 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
842 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
843 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
844 PRINT_STATS_LE32(ofdm, dsp_self_kill);
845 PRINT_STATS_LE32(ofdm, mh_format_err);
846 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
847 PRINT_STATS_LE32(ofdm, reserved);
848 } else {
849 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
850
851 PRINT_STATS_LE32(ofdm, unresponded_rts);
852 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
853 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
854 PRINT_STATS_LE32(ofdm, dsp_self_kill);
855 PRINT_STATS_LE32(ofdm, reserved);
856 }
857
858 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
859 "Statistics_Rx - CCK");
860 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
861 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
862
863 PRINT_STATS_LE32(cck, ina_cnt);
864 PRINT_STATS_LE32(cck, fina_cnt);
865 PRINT_STATS_LE32(cck, plcp_err);
866 PRINT_STATS_LE32(cck, crc32_err);
867 PRINT_STATS_LE32(cck, overrun_err);
868 PRINT_STATS_LE32(cck, early_overrun_err);
869 PRINT_STATS_LE32(cck, crc32_good);
870 PRINT_STATS_LE32(cck, false_alarm_cnt);
871 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
872 PRINT_STATS_LE32(cck, sfd_timeout);
873 PRINT_STATS_LE32(cck, fina_timeout);
874 PRINT_STATS_LE32(cck, unresponded_rts);
875 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
876 PRINT_STATS_LE32(cck, sent_ack_cnt);
877 PRINT_STATS_LE32(cck, sent_cts_cnt);
878 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
879 PRINT_STATS_LE32(cck, dsp_self_kill);
880 PRINT_STATS_LE32(cck, mh_format_err);
881 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
882 PRINT_STATS_LE32(cck, reserved);
883 } else {
884 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
885
886 PRINT_STATS_LE32(cck, unresponded_rts);
887 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
888 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
889 PRINT_STATS_LE32(cck, dsp_self_kill);
890 PRINT_STATS_LE32(cck, reserved);
891 }
892
893 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
894 "Statistics_Rx - GENERAL");
895 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
896 struct mvm_statistics_rx_non_phy_v3 *general =
897 &mvm->rx_stats_v3.general;
898
899 PRINT_STATS_LE32(general, bogus_cts);
900 PRINT_STATS_LE32(general, bogus_ack);
901 PRINT_STATS_LE32(general, non_bssid_frames);
902 PRINT_STATS_LE32(general, filtered_frames);
903 PRINT_STATS_LE32(general, non_channel_beacons);
904 PRINT_STATS_LE32(general, channel_beacons);
905 PRINT_STATS_LE32(general, num_missed_bcon);
906 PRINT_STATS_LE32(general, adc_rx_saturation_time);
907 PRINT_STATS_LE32(general, ina_detection_search_time);
908 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
909 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
910 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
911 PRINT_STATS_LE32(general, interference_data_flag);
912 PRINT_STATS_LE32(general, channel_load);
913 PRINT_STATS_LE32(general, dsp_false_alarms);
914 PRINT_STATS_LE32(general, beacon_rssi_a);
915 PRINT_STATS_LE32(general, beacon_rssi_b);
916 PRINT_STATS_LE32(general, beacon_rssi_c);
917 PRINT_STATS_LE32(general, beacon_energy_a);
918 PRINT_STATS_LE32(general, beacon_energy_b);
919 PRINT_STATS_LE32(general, beacon_energy_c);
920 PRINT_STATS_LE32(general, num_bt_kills);
921 PRINT_STATS_LE32(general, mac_id);
922 PRINT_STATS_LE32(general, directed_data_mpdu);
923 } else {
924 struct mvm_statistics_rx_non_phy *general =
925 &mvm->rx_stats.general;
926
927 PRINT_STATS_LE32(general, bogus_cts);
928 PRINT_STATS_LE32(general, bogus_ack);
929 PRINT_STATS_LE32(general, non_channel_beacons);
930 PRINT_STATS_LE32(general, channel_beacons);
931 PRINT_STATS_LE32(general, num_missed_bcon);
932 PRINT_STATS_LE32(general, adc_rx_saturation_time);
933 PRINT_STATS_LE32(general, ina_detection_search_time);
934 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
935 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
936 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
937 PRINT_STATS_LE32(general, interference_data_flag);
938 PRINT_STATS_LE32(general, channel_load);
939 PRINT_STATS_LE32(general, beacon_rssi_a);
940 PRINT_STATS_LE32(general, beacon_rssi_b);
941 PRINT_STATS_LE32(general, beacon_rssi_c);
942 PRINT_STATS_LE32(general, beacon_energy_a);
943 PRINT_STATS_LE32(general, beacon_energy_b);
944 PRINT_STATS_LE32(general, beacon_energy_c);
945 PRINT_STATS_LE32(general, num_bt_kills);
946 PRINT_STATS_LE32(general, mac_id);
947 }
948
949 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
950 "Statistics_Rx - HT");
951 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
952 struct mvm_statistics_rx_ht_phy_v1 *ht =
953 &mvm->rx_stats_v3.ofdm_ht;
954
955 PRINT_STATS_LE32(ht, plcp_err);
956 PRINT_STATS_LE32(ht, overrun_err);
957 PRINT_STATS_LE32(ht, early_overrun_err);
958 PRINT_STATS_LE32(ht, crc32_good);
959 PRINT_STATS_LE32(ht, crc32_err);
960 PRINT_STATS_LE32(ht, mh_format_err);
961 PRINT_STATS_LE32(ht, agg_crc32_good);
962 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
963 PRINT_STATS_LE32(ht, agg_cnt);
964 PRINT_STATS_LE32(ht, unsupport_mcs);
965 } else {
966 struct mvm_statistics_rx_ht_phy *ht =
967 &mvm->rx_stats.ofdm_ht;
968
969 PRINT_STATS_LE32(ht, mh_format_err);
970 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
971 PRINT_STATS_LE32(ht, agg_cnt);
972 PRINT_STATS_LE32(ht, unsupport_mcs);
973 }
974
975 mutex_unlock(&mvm->mutex);
976
977 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
978 kfree(buf);
979
980 return ret;
981 }
982 #undef PRINT_STAT_LE32
983
iwl_dbgfs_fw_system_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)984 static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file,
985 char __user *user_buf,
986 size_t count, loff_t *ppos)
987 {
988 char *buff, *pos, *endpos;
989 int ret;
990 size_t bufsz;
991 int i;
992 struct iwl_mvm_vif *mvmvif;
993 struct ieee80211_vif *vif;
994 struct iwl_mvm *mvm = file->private_data;
995 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
996 WIDE_ID(SYSTEM_GROUP,
997 SYSTEM_STATISTICS_CMD),
998 IWL_FW_CMD_VER_UNKNOWN);
999
1000 /* in case of a wrong cmd version, allocate buffer only for error msg */
1001 bufsz = (cmd_ver == 1) ? 4096 : 64;
1002
1003 buff = kzalloc(bufsz, GFP_KERNEL);
1004 if (!buff)
1005 return -ENOMEM;
1006
1007 pos = buff;
1008 endpos = pos + bufsz;
1009
1010 if (cmd_ver != 1) {
1011 pos += scnprintf(pos, endpos - pos,
1012 "System stats not supported:%d\n", cmd_ver);
1013 goto send_out;
1014 }
1015
1016 mutex_lock(&mvm->mutex);
1017 if (iwl_mvm_firmware_running(mvm))
1018 iwl_mvm_request_statistics(mvm, false);
1019
1020 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1021 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1022 if (!vif)
1023 continue;
1024
1025 if (vif->type == NL80211_IFTYPE_STATION)
1026 break;
1027 }
1028
1029 if (i == NUM_MAC_INDEX_DRIVER || !vif) {
1030 pos += scnprintf(pos, endpos - pos, "vif is NULL\n");
1031 goto release_send_out;
1032 }
1033
1034 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1035 if (!mvmvif) {
1036 pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n");
1037 goto release_send_out;
1038 }
1039
1040 for_each_mvm_vif_valid_link(mvmvif, i) {
1041 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i];
1042
1043 pos += scnprintf(pos, endpos - pos,
1044 "link_id %d", i);
1045 pos += scnprintf(pos, endpos - pos,
1046 " num_beacons %d",
1047 link_info->beacon_stats.num_beacons);
1048 pos += scnprintf(pos, endpos - pos,
1049 " accu_num_beacons %d",
1050 link_info->beacon_stats.accu_num_beacons);
1051 pos += scnprintf(pos, endpos - pos,
1052 " avg_signal %d\n",
1053 link_info->beacon_stats.avg_signal);
1054 }
1055
1056 pos += scnprintf(pos, endpos - pos,
1057 "radio_stats.rx_time %lld\n",
1058 mvm->radio_stats.rx_time);
1059 pos += scnprintf(pos, endpos - pos,
1060 "radio_stats.tx_time %lld\n",
1061 mvm->radio_stats.tx_time);
1062 pos += scnprintf(pos, endpos - pos,
1063 "accu_radio_stats.rx_time %lld\n",
1064 mvm->accu_radio_stats.rx_time);
1065 pos += scnprintf(pos, endpos - pos,
1066 "accu_radio_stats.tx_time %lld\n",
1067 mvm->accu_radio_stats.tx_time);
1068
1069 release_send_out:
1070 mutex_unlock(&mvm->mutex);
1071
1072 send_out:
1073 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1074 kfree(buff);
1075
1076 return ret;
1077 }
1078
iwl_dbgfs_frame_stats_read(struct iwl_mvm * mvm,char __user * user_buf,size_t count,loff_t * ppos,struct iwl_mvm_frame_stats * stats)1079 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
1080 char __user *user_buf, size_t count,
1081 loff_t *ppos,
1082 struct iwl_mvm_frame_stats *stats)
1083 {
1084 char *buff, *pos, *endpos;
1085 int idx, i;
1086 int ret;
1087 static const size_t bufsz = 1024;
1088
1089 buff = kmalloc(bufsz, GFP_KERNEL);
1090 if (!buff)
1091 return -ENOMEM;
1092
1093 spin_lock_bh(&mvm->drv_stats_lock);
1094
1095 pos = buff;
1096 endpos = pos + bufsz;
1097
1098 pos += scnprintf(pos, endpos - pos,
1099 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
1100 stats->legacy_frames,
1101 stats->ht_frames,
1102 stats->vht_frames);
1103 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
1104 stats->bw_20_frames,
1105 stats->bw_40_frames,
1106 stats->bw_80_frames);
1107 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
1108 stats->ngi_frames,
1109 stats->sgi_frames);
1110 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
1111 stats->siso_frames,
1112 stats->mimo2_frames);
1113 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
1114 stats->fail_frames,
1115 stats->success_frames);
1116 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
1117 stats->agg_frames);
1118 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
1119 stats->ampdu_count);
1120 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
1121 stats->ampdu_count > 0 ?
1122 (stats->agg_frames / stats->ampdu_count) : 0);
1123
1124 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
1125
1126 idx = stats->last_frame_idx - 1;
1127 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
1128 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
1129 if (stats->last_rates[idx] == 0)
1130 continue;
1131 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
1132 (int)(ARRAY_SIZE(stats->last_rates) - i));
1133 pos += rs_pretty_print_rate_v1(pos, endpos - pos,
1134 stats->last_rates[idx]);
1135 if (pos < endpos - 1)
1136 *pos++ = '\n';
1137 }
1138 spin_unlock_bh(&mvm->drv_stats_lock);
1139
1140 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1141 kfree(buff);
1142
1143 return ret;
1144 }
1145
iwl_dbgfs_drv_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1146 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
1147 char __user *user_buf, size_t count,
1148 loff_t *ppos)
1149 {
1150 struct iwl_mvm *mvm = file->private_data;
1151
1152 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
1153 &mvm->drv_rx_stats);
1154 }
1155
iwl_dbgfs_fw_restart_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1156 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1157 size_t count, loff_t *ppos)
1158 {
1159 int __maybe_unused ret;
1160
1161 if (!iwl_mvm_firmware_running(mvm))
1162 return -EIO;
1163
1164 mutex_lock(&mvm->mutex);
1165
1166 /* allow one more restart that we're provoking here */
1167 if (mvm->fw_restart >= 0)
1168 mvm->fw_restart++;
1169
1170 if (count == 6 && !strcmp(buf, "nolog\n")) {
1171 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1172 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
1173 }
1174
1175 /* take the return value to make compiler happy - it will fail anyway */
1176 ret = iwl_mvm_send_cmd_pdu(mvm,
1177 WIDE_ID(LONG_GROUP, REPLY_ERROR),
1178 0, 0, NULL);
1179
1180 mutex_unlock(&mvm->mutex);
1181
1182 return count;
1183 }
1184
iwl_dbgfs_fw_nmi_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1185 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1186 size_t count, loff_t *ppos)
1187 {
1188 if (!iwl_mvm_firmware_running(mvm))
1189 return -EIO;
1190
1191 IWL_ERR(mvm, "Triggering an NMI from debugfs\n");
1192
1193 if (count == 6 && !strcmp(buf, "nolog\n"))
1194 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1195
1196 iwl_force_nmi(mvm->trans);
1197
1198 return count;
1199 }
1200
1201 static ssize_t
iwl_dbgfs_scan_ant_rxchain_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1202 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1203 char __user *user_buf,
1204 size_t count, loff_t *ppos)
1205 {
1206 struct iwl_mvm *mvm = file->private_data;
1207 int pos = 0;
1208 char buf[32];
1209 const size_t bufsz = sizeof(buf);
1210
1211 /* print which antennas were set for the scan command by the user */
1212 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1213 if (mvm->scan_rx_ant & ANT_A)
1214 pos += scnprintf(buf + pos, bufsz - pos, "A");
1215 if (mvm->scan_rx_ant & ANT_B)
1216 pos += scnprintf(buf + pos, bufsz - pos, "B");
1217 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant);
1218
1219 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1220 }
1221
1222 static ssize_t
iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1223 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1224 size_t count, loff_t *ppos)
1225 {
1226 u8 scan_rx_ant;
1227
1228 if (!iwl_mvm_firmware_running(mvm))
1229 return -EIO;
1230
1231 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1232 return -EINVAL;
1233 if (scan_rx_ant > ANT_ABC)
1234 return -EINVAL;
1235 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1236 return -EINVAL;
1237
1238 if (mvm->scan_rx_ant != scan_rx_ant) {
1239 mvm->scan_rx_ant = scan_rx_ant;
1240 if (fw_has_capa(&mvm->fw->ucode_capa,
1241 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1242 iwl_mvm_config_scan(mvm);
1243 }
1244
1245 return count;
1246 }
1247
iwl_dbgfs_indirection_tbl_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1248 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1249 char *buf, size_t count,
1250 loff_t *ppos)
1251 {
1252 struct iwl_rss_config_cmd cmd = {
1253 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1254 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1255 IWL_RSS_HASH_TYPE_IPV4_UDP |
1256 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1257 IWL_RSS_HASH_TYPE_IPV6_TCP |
1258 IWL_RSS_HASH_TYPE_IPV6_UDP |
1259 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1260 };
1261 int ret, i, num_repeats, nbytes = count / 2;
1262
1263 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1264 if (ret)
1265 return ret;
1266
1267 /*
1268 * The input is the redirection table, partial or full.
1269 * Repeat the pattern if needed.
1270 * For example, input of 01020F will be repeated 42 times,
1271 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1272 * queues 3 - 14).
1273 */
1274 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1275 for (i = 1; i < num_repeats; i++)
1276 memcpy(&cmd.indirection_table[i * nbytes],
1277 cmd.indirection_table, nbytes);
1278 /* handle cut in the middle pattern for the last places */
1279 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1280 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1281
1282 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1283
1284 mutex_lock(&mvm->mutex);
1285 if (iwl_mvm_firmware_running(mvm))
1286 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1287 sizeof(cmd), &cmd);
1288 else
1289 ret = 0;
1290 mutex_unlock(&mvm->mutex);
1291
1292 return ret ?: count;
1293 }
1294
iwl_dbgfs_inject_packet_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1295 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1296 char *buf, size_t count,
1297 loff_t *ppos)
1298 {
1299 struct iwl_op_mode *opmode = container_of((void *)mvm,
1300 struct iwl_op_mode,
1301 op_mode_specific);
1302 struct iwl_rx_cmd_buffer rxb = {
1303 ._rx_page_order = 0,
1304 .truesize = 0, /* not used */
1305 ._offset = 0,
1306 };
1307 struct iwl_rx_packet *pkt;
1308 int bin_len = count / 2;
1309 int ret = -EINVAL;
1310
1311 if (!iwl_mvm_firmware_running(mvm))
1312 return -EIO;
1313
1314 /* supporting only MQ RX */
1315 if (!mvm->trans->trans_cfg->mq_rx_supported)
1316 return -EOPNOTSUPP;
1317
1318 rxb._page = alloc_pages(GFP_ATOMIC, 0);
1319 if (!rxb._page)
1320 return -ENOMEM;
1321 pkt = rxb_addr(&rxb);
1322
1323 ret = hex2bin(page_address(rxb._page), buf, bin_len);
1324 if (ret)
1325 goto out;
1326
1327 /* avoid invalid memory access and malformed packet */
1328 if (bin_len < sizeof(*pkt) ||
1329 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
1330 goto out;
1331
1332 local_bh_disable();
1333 iwl_mvm_rx_mq(opmode, NULL, &rxb);
1334 local_bh_enable();
1335 ret = 0;
1336
1337 out:
1338 iwl_free_rxb(&rxb);
1339
1340 return ret ?: count;
1341 }
1342
_iwl_dbgfs_inject_beacon_ie(struct iwl_mvm * mvm,char * bin,int len)1343 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1344 {
1345 struct ieee80211_vif *vif;
1346 struct iwl_mvm_vif *mvmvif;
1347 struct sk_buff *beacon;
1348 struct ieee80211_tx_info *info;
1349 struct iwl_mac_beacon_cmd beacon_cmd = {};
1350 unsigned int link_id;
1351 u8 rate;
1352 int i;
1353
1354 len /= 2;
1355
1356 /* Element len should be represented by u8 */
1357 if (len >= U8_MAX)
1358 return -EINVAL;
1359
1360 if (!iwl_mvm_firmware_running(mvm))
1361 return -EIO;
1362
1363 if (!iwl_mvm_has_new_tx_api(mvm) &&
1364 !fw_has_api(&mvm->fw->ucode_capa,
1365 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1366 return -EINVAL;
1367
1368 mutex_lock(&mvm->mutex);
1369
1370 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1371 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1372 if (!vif)
1373 continue;
1374
1375 if (vif->type == NL80211_IFTYPE_AP)
1376 break;
1377 }
1378
1379 if (i == NUM_MAC_INDEX_DRIVER || !vif)
1380 goto out_err;
1381
1382 mvm->hw->extra_beacon_tailroom = len;
1383
1384 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0);
1385 if (!beacon)
1386 goto out_err;
1387
1388 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1389 dev_kfree_skb(beacon);
1390 goto out_err;
1391 }
1392
1393 mvm->beacon_inject_active = true;
1394
1395 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1396 info = IEEE80211_SKB_CB(beacon);
1397 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif);
1398
1399 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1400 beacon_cmd.flags =
1401 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw,
1402 rate));
1403 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1404 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12)
1405 beacon_cmd.link_id =
1406 cpu_to_le32(mvmvif->link[link_id]->fw_link_id);
1407 else
1408 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id);
1409
1410 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1411 &beacon_cmd.tim_size,
1412 beacon->data, beacon->len);
1413
1414 if (iwl_fw_lookup_cmd_ver(mvm->fw,
1415 BEACON_TEMPLATE_CMD, 0) >= 14) {
1416 u32 offset = iwl_mvm_find_ie_offset(beacon->data,
1417 WLAN_EID_S1G_TWT,
1418 beacon->len);
1419
1420 beacon_cmd.btwt_offset = cpu_to_le32(offset);
1421 }
1422
1423 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1424 sizeof(beacon_cmd));
1425 }
1426 mutex_unlock(&mvm->mutex);
1427
1428 dev_kfree_skb(beacon);
1429
1430 return 0;
1431
1432 out_err:
1433 mutex_unlock(&mvm->mutex);
1434 return -EINVAL;
1435 }
1436
iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1437 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1438 char *buf, size_t count,
1439 loff_t *ppos)
1440 {
1441 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1442
1443 mvm->hw->extra_beacon_tailroom = 0;
1444 return ret ?: count;
1445 }
1446
iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1447 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1448 char *buf,
1449 size_t count,
1450 loff_t *ppos)
1451 {
1452 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1453
1454 mvm->hw->extra_beacon_tailroom = 0;
1455 mvm->beacon_inject_active = false;
1456 return ret ?: count;
1457 }
1458
iwl_dbgfs_fw_dbg_conf_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1459 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1460 char __user *user_buf,
1461 size_t count, loff_t *ppos)
1462 {
1463 struct iwl_mvm *mvm = file->private_data;
1464 int conf;
1465 char buf[8];
1466 const size_t bufsz = sizeof(buf);
1467 int pos = 0;
1468
1469 mutex_lock(&mvm->mutex);
1470 conf = mvm->fwrt.dump.conf;
1471 mutex_unlock(&mvm->mutex);
1472
1473 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1474
1475 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1476 }
1477
iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1478 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1479 char *buf, size_t count,
1480 loff_t *ppos)
1481 {
1482 unsigned int conf_id;
1483 int ret;
1484
1485 if (!iwl_mvm_firmware_running(mvm))
1486 return -EIO;
1487
1488 ret = kstrtouint(buf, 0, &conf_id);
1489 if (ret)
1490 return ret;
1491
1492 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1493 return -EINVAL;
1494
1495 mutex_lock(&mvm->mutex);
1496 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1497 mutex_unlock(&mvm->mutex);
1498
1499 return ret ?: count;
1500 }
1501
iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1502 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1503 char *buf, size_t count,
1504 loff_t *ppos)
1505 {
1506 if (count == 0)
1507 return 0;
1508
1509 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1510 NULL);
1511
1512 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1513 (count - 1), NULL);
1514
1515 return count;
1516 }
1517
iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1518 static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm,
1519 char *buf, size_t count,
1520 loff_t *ppos)
1521 {
1522 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1523 return -EOPNOTSUPP;
1524
1525 mutex_lock(&mvm->mutex);
1526 iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt);
1527 mutex_unlock(&mvm->mutex);
1528
1529 return count;
1530 }
1531
iwl_dbgfs_dbg_time_point_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1532 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
1533 char *buf, size_t count,
1534 loff_t *ppos)
1535 {
1536 u32 timepoint;
1537
1538 if (kstrtou32(buf, 0, &timepoint))
1539 return -EINVAL;
1540
1541 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
1542 timepoint >= IWL_FW_INI_TIME_POINT_NUM)
1543 return -EINVAL;
1544
1545 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
1546
1547 return count;
1548 }
1549
1550 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1551 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1552 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1553 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1554 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1555 debugfs_create_file(alias, mode, parent, mvm, \
1556 &iwl_dbgfs_##name##_ops); \
1557 } while (0)
1558 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1559 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1560
1561 static ssize_t
_iwl_dbgfs_link_sta_wrap_write(ssize_t (* real)(struct ieee80211_link_sta *,struct iwl_mvm_sta *,struct iwl_mvm *,struct iwl_mvm_link_sta *,char *,size_t,loff_t *),struct file * file,char * buf,size_t buf_size,loff_t * ppos)1562 _iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *,
1563 struct iwl_mvm_sta *,
1564 struct iwl_mvm *,
1565 struct iwl_mvm_link_sta *,
1566 char *,
1567 size_t, loff_t *),
1568 struct file *file,
1569 char *buf, size_t buf_size, loff_t *ppos)
1570 {
1571 struct ieee80211_link_sta *link_sta = file->private_data;
1572 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1573 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1574 struct iwl_mvm_link_sta *mvm_link_sta;
1575 ssize_t ret;
1576
1577 mutex_lock(&mvm->mutex);
1578
1579 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1580 lockdep_is_held(&mvm->mutex));
1581 if (WARN_ON(!mvm_link_sta)) {
1582 mutex_unlock(&mvm->mutex);
1583 return -ENODEV;
1584 }
1585
1586 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos);
1587
1588 mutex_unlock(&mvm->mutex);
1589
1590 return ret;
1591 }
1592
1593 static ssize_t
_iwl_dbgfs_link_sta_wrap_read(ssize_t (* real)(struct ieee80211_link_sta *,struct iwl_mvm_sta *,struct iwl_mvm *,struct iwl_mvm_link_sta *,char __user *,size_t,loff_t *),struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1594 _iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *,
1595 struct iwl_mvm_sta *,
1596 struct iwl_mvm *,
1597 struct iwl_mvm_link_sta *,
1598 char __user *,
1599 size_t, loff_t *),
1600 struct file *file,
1601 char __user *user_buf, size_t count, loff_t *ppos)
1602 {
1603 struct ieee80211_link_sta *link_sta = file->private_data;
1604 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1605 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1606 struct iwl_mvm_link_sta *mvm_link_sta;
1607 ssize_t ret;
1608
1609 mutex_lock(&mvm->mutex);
1610
1611 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1612 lockdep_is_held(&mvm->mutex));
1613 if (WARN_ON(!mvm_link_sta)) {
1614 mutex_unlock(&mvm->mutex);
1615 return -ENODEV;
1616 }
1617
1618 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos);
1619
1620 mutex_unlock(&mvm->mutex);
1621
1622 return ret;
1623 }
1624
1625 #define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \
1626 static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \
1627 const char __user *user_buf, \
1628 size_t count, loff_t *ppos) \
1629 { \
1630 char buf[buflen] = {}; \
1631 size_t buf_size = min(count, sizeof(buf) - 1); \
1632 \
1633 if (copy_from_user(buf, user_buf, buf_size)) \
1634 return -EFAULT; \
1635 \
1636 return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \
1637 file, \
1638 buf, buf_size, ppos); \
1639 } \
1640
1641 #define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1642 static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \
1643 char __user *user_buf, \
1644 size_t count, loff_t *ppos) \
1645 { \
1646 return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \
1647 file, \
1648 user_buf, count, ppos); \
1649 } \
1650
1651 #define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1652 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1653 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1654 .write = _iwl_dbgfs_link_sta_##name##_write, \
1655 .open = simple_open, \
1656 .llseek = generic_file_llseek, \
1657 }
1658
1659 #define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \
1660 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1661 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1662 .read = _iwl_dbgfs_link_sta_##name##_read, \
1663 .open = simple_open, \
1664 .llseek = generic_file_llseek, \
1665 }
1666
1667 #define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1668 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1669 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1670 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1671 .read = _iwl_dbgfs_link_sta_##name##_read, \
1672 .write = _iwl_dbgfs_link_sta_##name##_write, \
1673 .open = simple_open, \
1674 .llseek = generic_file_llseek, \
1675 }
1676
1677 #define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \
1678 debugfs_create_file(alias, mode, parent, link_sta, \
1679 &iwl_dbgfs_link_sta_##name##_ops)
1680 #define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \
1681 MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode)
1682
1683 static ssize_t
iwl_dbgfs_prph_reg_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1684 iwl_dbgfs_prph_reg_read(struct file *file,
1685 char __user *user_buf,
1686 size_t count, loff_t *ppos)
1687 {
1688 struct iwl_mvm *mvm = file->private_data;
1689 int pos = 0;
1690 char buf[32];
1691 const size_t bufsz = sizeof(buf);
1692
1693 if (!mvm->dbgfs_prph_reg_addr)
1694 return -EINVAL;
1695
1696 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1697 mvm->dbgfs_prph_reg_addr,
1698 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1699
1700 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1701 }
1702
1703 static ssize_t
iwl_dbgfs_prph_reg_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1704 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1705 size_t count, loff_t *ppos)
1706 {
1707 u8 args;
1708 u32 value;
1709
1710 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1711 /* if we only want to set the reg address - nothing more to do */
1712 if (args == 1)
1713 goto out;
1714
1715 /* otherwise, make sure we have both address and value */
1716 if (args != 2)
1717 return -EINVAL;
1718
1719 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1720
1721 out:
1722 return count;
1723 }
1724
1725 static ssize_t
iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1726 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1727 size_t count, loff_t *ppos)
1728 {
1729 int ret;
1730
1731 if (!iwl_mvm_firmware_running(mvm))
1732 return -EIO;
1733
1734 mutex_lock(&mvm->mutex);
1735 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1736 mutex_unlock(&mvm->mutex);
1737
1738 return ret ?: count;
1739 }
1740
1741 struct iwl_mvm_sniffer_apply {
1742 struct iwl_mvm *mvm;
1743 u8 *bssid;
1744 u16 aid;
1745 };
1746
iwl_mvm_sniffer_apply(struct iwl_notif_wait_data * notif_data,struct iwl_rx_packet * pkt,void * data)1747 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1748 struct iwl_rx_packet *pkt, void *data)
1749 {
1750 struct iwl_mvm_sniffer_apply *apply = data;
1751
1752 apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1753 memcpy(apply->mvm->cur_bssid, apply->bssid,
1754 sizeof(apply->mvm->cur_bssid));
1755
1756 return true;
1757 }
1758
1759 static ssize_t
iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1760 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1761 size_t count, loff_t *ppos)
1762 {
1763 struct iwl_notification_wait wait;
1764 struct iwl_he_monitor_cmd he_mon_cmd = {};
1765 struct iwl_mvm_sniffer_apply apply = {
1766 .mvm = mvm,
1767 };
1768 u16 wait_cmds[] = {
1769 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1770 };
1771 u32 aid;
1772 int ret;
1773
1774 if (!iwl_mvm_firmware_running(mvm))
1775 return -EIO;
1776
1777 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1778 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1779 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1780 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1781 if (ret != 7)
1782 return -EINVAL;
1783
1784 he_mon_cmd.aid = cpu_to_le16(aid);
1785
1786 apply.aid = aid;
1787 apply.bssid = (void *)he_mon_cmd.bssid;
1788
1789 mutex_lock(&mvm->mutex);
1790
1791 /*
1792 * Use the notification waiter to get our function triggered
1793 * in sequence with other RX. This ensures that frames we get
1794 * on the RX queue _before_ the new configuration is applied
1795 * still have mvm->cur_aid pointing to the old AID, and that
1796 * frames on the RX queue _after_ the firmware processed the
1797 * new configuration (and sent the response, synchronously)
1798 * get mvm->cur_aid correctly set to the new AID.
1799 */
1800 iwl_init_notification_wait(&mvm->notif_wait, &wait,
1801 wait_cmds, ARRAY_SIZE(wait_cmds),
1802 iwl_mvm_sniffer_apply, &apply);
1803
1804 ret = iwl_mvm_send_cmd_pdu(mvm,
1805 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1806 0,
1807 sizeof(he_mon_cmd), &he_mon_cmd);
1808
1809 /* no need to really wait, we already did anyway */
1810 iwl_remove_notification(&mvm->notif_wait, &wait);
1811
1812 mutex_unlock(&mvm->mutex);
1813
1814 return ret ?: count;
1815 }
1816
1817 static ssize_t
iwl_dbgfs_he_sniffer_params_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1818 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
1819 size_t count, loff_t *ppos)
1820 {
1821 struct iwl_mvm *mvm = file->private_data;
1822 u8 buf[32];
1823 int len;
1824
1825 len = scnprintf(buf, sizeof(buf),
1826 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
1827 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
1828 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
1829 mvm->cur_bssid[4], mvm->cur_bssid[5]);
1830
1831 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1832 }
1833
1834 static ssize_t
iwl_dbgfs_uapsd_noagg_bssids_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1835 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1836 size_t count, loff_t *ppos)
1837 {
1838 struct iwl_mvm *mvm = file->private_data;
1839 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1840 unsigned int pos = 0;
1841 size_t bufsz = sizeof(buf);
1842 int i;
1843
1844 mutex_lock(&mvm->mutex);
1845
1846 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1847 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1848 mvm->uapsd_noagg_bssids[i].addr);
1849
1850 mutex_unlock(&mvm->mutex);
1851
1852 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1853 }
1854
1855 static ssize_t
iwl_dbgfs_ltr_config_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1856 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
1857 char *buf, size_t count, loff_t *ppos)
1858 {
1859 int ret;
1860 struct iwl_ltr_config_cmd ltr_config = {0};
1861
1862 if (!iwl_mvm_firmware_running(mvm))
1863 return -EIO;
1864
1865 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
1866 <r_config.flags,
1867 <r_config.static_long,
1868 <r_config.static_short,
1869 <r_config.ltr_cfg_values[0],
1870 <r_config.ltr_cfg_values[1],
1871 <r_config.ltr_cfg_values[2],
1872 <r_config.ltr_cfg_values[3]) != 7) {
1873 return -EINVAL;
1874 }
1875
1876 mutex_lock(&mvm->mutex);
1877 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
1878 <r_config);
1879 mutex_unlock(&mvm->mutex);
1880
1881 if (ret)
1882 IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
1883
1884 return ret ?: count;
1885 }
1886
iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1887 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
1888 size_t count, loff_t *ppos)
1889 {
1890 int ret = 0;
1891 u16 op_id;
1892
1893 if (kstrtou16(buf, 10, &op_id))
1894 return -EINVAL;
1895
1896 /* value zero triggers re-sending the default table to the device */
1897 if (!op_id) {
1898 mutex_lock(&mvm->mutex);
1899 ret = iwl_rfi_send_config_cmd(mvm, NULL);
1900 mutex_unlock(&mvm->mutex);
1901 } else {
1902 ret = -EOPNOTSUPP; /* in the future a new table will be added */
1903 }
1904
1905 return ret ?: count;
1906 }
1907
1908 /* The size computation is as follows:
1909 * each number needs at most 3 characters, number of rows is the size of
1910 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards
1911 * needs 6 characters for numbers and 5 for the punctuation around.
1912 */
1913 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
1914 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
1915
iwl_dbgfs_rfi_freq_table_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1916 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
1917 char __user *user_buf,
1918 size_t count, loff_t *ppos)
1919 {
1920 struct iwl_mvm *mvm = file->private_data;
1921 struct iwl_rfi_freq_table_resp_cmd *resp;
1922 u32 status;
1923 char buf[IWL_RFI_BUF_SIZE];
1924 int i, j, pos = 0;
1925
1926 resp = iwl_rfi_get_freq_table(mvm);
1927 if (IS_ERR(resp))
1928 return PTR_ERR(resp);
1929
1930 status = le32_to_cpu(resp->status);
1931 if (status != RFI_FREQ_TABLE_OK) {
1932 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
1933 goto out;
1934 }
1935
1936 for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
1937 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
1938 resp->table[i].freq);
1939
1940 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
1941 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
1942 "(%d, %d) ",
1943 resp->table[i].channels[j],
1944 resp->table[i].bands[j]);
1945 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
1946 }
1947
1948 out:
1949 kfree(resp);
1950 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1951 }
1952
1953 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1954
1955 /* Device wide debugfs entries */
1956 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1957 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1958 MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8);
1959 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1960 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1961 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1962 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1963 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1964 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1965 MVM_DEBUGFS_READ_FILE_OPS(stations);
1966 MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data);
1967 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1968 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1969 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1970 MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats);
1971 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1972 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
1973 MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
1974 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1975 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1976 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1977 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1978 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1979 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64);
1980 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
1981 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1982 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1983 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1984 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1985 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1986
1987 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1988
1989 #ifdef CONFIG_ACPI
1990 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1991 MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable);
1992 #endif
1993
1994 MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16);
1995
1996 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
1997
1998 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
1999 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
2000
iwl_dbgfs_mem_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2001 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
2002 size_t count, loff_t *ppos)
2003 {
2004 struct iwl_mvm *mvm = file->private_data;
2005 struct iwl_dbg_mem_access_cmd cmd = {};
2006 struct iwl_dbg_mem_access_rsp *rsp;
2007 struct iwl_host_cmd hcmd = {
2008 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2009 .data = { &cmd, },
2010 .len = { sizeof(cmd) },
2011 };
2012 size_t delta;
2013 ssize_t ret, len;
2014
2015 if (!iwl_mvm_firmware_running(mvm))
2016 return -EIO;
2017
2018 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2019 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
2020
2021 /* Take care of alignment of both the position and the length */
2022 delta = *ppos & 0x3;
2023 cmd.addr = cpu_to_le32(*ppos - delta);
2024 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
2025 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
2026
2027 mutex_lock(&mvm->mutex);
2028 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2029 mutex_unlock(&mvm->mutex);
2030
2031 if (ret < 0)
2032 return ret;
2033
2034 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2035 ret = -EIO;
2036 goto out;
2037 }
2038
2039 rsp = (void *)hcmd.resp_pkt->data;
2040 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
2041 ret = -ENXIO;
2042 goto out;
2043 }
2044
2045 len = min((size_t)le32_to_cpu(rsp->len) << 2,
2046 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
2047 len = min(len - delta, count);
2048 if (len < 0) {
2049 ret = -EFAULT;
2050 goto out;
2051 }
2052
2053 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
2054 *ppos += ret;
2055
2056 out:
2057 iwl_free_resp(&hcmd);
2058 return ret;
2059 }
2060
iwl_dbgfs_mem_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2061 static ssize_t iwl_dbgfs_mem_write(struct file *file,
2062 const char __user *user_buf, size_t count,
2063 loff_t *ppos)
2064 {
2065 struct iwl_mvm *mvm = file->private_data;
2066 struct iwl_dbg_mem_access_cmd *cmd;
2067 struct iwl_dbg_mem_access_rsp *rsp;
2068 struct iwl_host_cmd hcmd = {};
2069 size_t cmd_size;
2070 size_t data_size;
2071 u32 op, len;
2072 ssize_t ret;
2073
2074 if (!iwl_mvm_firmware_running(mvm))
2075 return -EIO;
2076
2077 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2078
2079 if (*ppos & 0x3 || count < 4) {
2080 op = DEBUG_MEM_OP_WRITE_BYTES;
2081 len = min(count, (size_t)(4 - (*ppos & 0x3)));
2082 data_size = len;
2083 } else {
2084 op = DEBUG_MEM_OP_WRITE;
2085 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
2086 data_size = len << 2;
2087 }
2088
2089 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
2090 cmd = kzalloc(cmd_size, GFP_KERNEL);
2091 if (!cmd)
2092 return -ENOMEM;
2093
2094 cmd->op = cpu_to_le32(op);
2095 cmd->len = cpu_to_le32(len);
2096 cmd->addr = cpu_to_le32(*ppos);
2097 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
2098 kfree(cmd);
2099 return -EFAULT;
2100 }
2101
2102 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2103 hcmd.data[0] = (void *)cmd;
2104 hcmd.len[0] = cmd_size;
2105
2106 mutex_lock(&mvm->mutex);
2107 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2108 mutex_unlock(&mvm->mutex);
2109
2110 kfree(cmd);
2111
2112 if (ret < 0)
2113 return ret;
2114
2115 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2116 ret = -EIO;
2117 goto out;
2118 }
2119
2120 rsp = (void *)hcmd.resp_pkt->data;
2121 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
2122 ret = -ENXIO;
2123 goto out;
2124 }
2125
2126 ret = data_size;
2127 *ppos += ret;
2128
2129 out:
2130 iwl_free_resp(&hcmd);
2131 return ret;
2132 }
2133
2134 static const struct file_operations iwl_dbgfs_mem_ops = {
2135 .read = iwl_dbgfs_mem_read,
2136 .write = iwl_dbgfs_mem_write,
2137 .open = simple_open,
2138 .llseek = default_llseek,
2139 };
2140
iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta,struct dentry * dir)2141 void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw,
2142 struct ieee80211_vif *vif,
2143 struct ieee80211_link_sta *link_sta,
2144 struct dentry *dir)
2145 {
2146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2147
2148 if (iwl_mvm_has_tlc_offload(mvm)) {
2149 MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400);
2150 }
2151
2152 MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600);
2153 }
2154
iwl_mvm_dbgfs_register(struct iwl_mvm * mvm)2155 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
2156 {
2157 struct dentry *bcast_dir __maybe_unused;
2158
2159 spin_lock_init(&mvm->drv_stats_lock);
2160
2161 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
2162 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
2163 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
2164 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
2165 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
2166 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
2167 MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200);
2168 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
2169 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
2170 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
2171 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
2172 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
2173 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
2174 MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400);
2175 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
2176 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
2177 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
2178 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
2179 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
2180 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
2181 MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200);
2182 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
2183 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
2184 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
2185 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
2186 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
2187 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
2188 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
2189
2190 if (mvm->fw->phy_integration_ver)
2191 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
2192 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400);
2193 #ifdef CONFIG_ACPI
2194 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
2195 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400);
2196 #endif
2197 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
2198
2199 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
2200 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
2201
2202 debugfs_create_bool("enable_scan_iteration_notif", 0600,
2203 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
2204 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
2205 &mvm->drop_bcn_ap_mode);
2206
2207 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
2208
2209 #ifdef CONFIG_PM_SLEEP
2210 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
2211 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
2212 &mvm->d3_wake_sysassert);
2213 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
2214 &mvm->last_netdetect_scans);
2215 #endif
2216
2217 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
2218 &mvm->ps_disabled);
2219 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
2220 &mvm->nvm_hw_blob);
2221 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
2222 &mvm->nvm_sw_blob);
2223 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
2224 &mvm->nvm_calib_blob);
2225 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
2226 &mvm->nvm_prod_blob);
2227 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
2228 &mvm->nvm_phy_sku_blob);
2229 debugfs_create_blob("nvm_reg", S_IRUSR,
2230 mvm->debugfs_dir, &mvm->nvm_reg_blob);
2231
2232 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
2233 &iwl_dbgfs_mem_ops);
2234
2235 debugfs_create_bool("rx_ts_ptp", 0600, mvm->debugfs_dir,
2236 &mvm->rx_ts_ptp);
2237
2238 #if defined(__linux__)
2239 /*
2240 * Create a symlink with mac80211. It will be removed when mac80211
2241 * exists (before the opmode exists which removes the target.)
2242 */
2243 if (!IS_ERR(mvm->debugfs_dir)) {
2244 char buf[100];
2245
2246 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
2247 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
2248 buf);
2249 }
2250 #endif
2251 }
2252