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 mvm->fwrt.dev->bus->name);
563
564 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
565 kfree(buff);
566
567 return ret;
568 }
569
iwl_dbgfs_tas_get_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)570 static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file,
571 char __user *user_buf,
572 size_t count, loff_t *ppos)
573 {
574 struct iwl_mvm *mvm = file->private_data;
575 struct iwl_mvm_tas_status_resp tas_rsp;
576 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp;
577 static const size_t bufsz = 1024;
578 char *buff, *pos, *endpos;
579 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = {
580 [TAS_DISABLED_DUE_TO_BIOS] =
581 "Due To BIOS",
582 [TAS_DISABLED_DUE_TO_SAR_6DBM] =
583 "Due To SAR Limit Less Than 6 dBm",
584 [TAS_DISABLED_REASON_INVALID] =
585 "N/A",
586 };
587 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = {
588 [TAS_DYNA_INACTIVE] = "INACTIVE",
589 [TAS_DYNA_INACTIVE_MVM_MODE] =
590 "inactive due to mvm mode",
591 [TAS_DYNA_INACTIVE_TRIGGER_MODE] =
592 "inactive due to trigger mode",
593 [TAS_DYNA_INACTIVE_BLOCK_LISTED] =
594 "inactive due to block listed",
595 [TAS_DYNA_INACTIVE_UHB_NON_US] =
596 "inactive due to uhb non US",
597 [TAS_DYNA_ACTIVE] = "ACTIVE",
598 };
599 struct iwl_host_cmd hcmd = {
600 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS),
601 .flags = CMD_WANT_SKB,
602 .len = { 0, },
603 .data = { NULL, },
604 };
605 int ret, i, tmp;
606 bool tas_enabled = false;
607 unsigned long dyn_status;
608
609 if (!iwl_mvm_firmware_running(mvm))
610 return -ENODEV;
611
612 mutex_lock(&mvm->mutex);
613 ret = iwl_mvm_send_cmd(mvm, &hcmd);
614 mutex_unlock(&mvm->mutex);
615 if (ret < 0)
616 return ret;
617
618 buff = kzalloc(bufsz, GFP_KERNEL);
619 if (!buff)
620 return -ENOMEM;
621 pos = buff;
622 endpos = pos + bufsz;
623
624 rsp = (void *)hcmd.resp_pkt->data;
625
626 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n");
627 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
628 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID &&
629 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) {
630 pos += scnprintf(pos, endpos - pos, "\tON for ");
631 switch (rsp->tas_status_mac[i].band) {
632 case TAS_LMAC_BAND_HB:
633 pos += scnprintf(pos, endpos - pos, "HB\n");
634 break;
635 case TAS_LMAC_BAND_LB:
636 pos += scnprintf(pos, endpos - pos, "LB\n");
637 break;
638 case TAS_LMAC_BAND_UHB:
639 pos += scnprintf(pos, endpos - pos, "UHB\n");
640 break;
641 case TAS_LMAC_BAND_INVALID:
642 pos += scnprintf(pos, endpos - pos,
643 "INVALID BAND\n");
644 break;
645 default:
646 pos += scnprintf(pos, endpos - pos,
647 "Unsupported band (%d)\n",
648 rsp->tas_status_mac[i].band);
649 goto out;
650 }
651 tas_enabled = true;
652 }
653 }
654 if (!tas_enabled)
655 pos += scnprintf(pos, endpos - pos, "\tOFF\n");
656
657 pos += scnprintf(pos, endpos - pos, "TAS Report\n");
658 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n",
659 rsp->tas_fw_version);
660 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n",
661 rsp->is_uhb_for_usa_enable ? "True" : "False");
662 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n",
663 le16_to_cpu(rsp->curr_mcc));
664
665 pos += scnprintf(pos, endpos - pos, "Block list entries:");
666 for (i = 0; i < IWL_WTAS_BLACK_LIST_MAX; i++)
667 pos += scnprintf(pos, endpos - pos, " 0x%x",
668 le16_to_cpu(rsp->block_list[i]));
669
670 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n",
671 dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>");
672 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n",
673 iwl_is_tas_approved() ? "YES" : "NO");
674 pos += scnprintf(pos, endpos - pos,
675 "\tDo TAS Support Dual Radio?: %s\n",
676 rsp->in_dual_radio ? "TRUE" : "FALSE");
677
678 for (i = 0; i < rsp->in_dual_radio + 1; i++) {
679 if (rsp->tas_status_mac[i].static_status == 0) {
680 pos += scnprintf(pos, endpos - pos,
681 "Static status: disabled\n");
682 pos += scnprintf(pos, endpos - pos,
683 "Static disabled reason: %s (0)\n",
684 tas_dis_reason[0]);
685 goto out;
686 }
687
688 pos += scnprintf(pos, endpos - pos, "TAS status for ");
689 switch (rsp->tas_status_mac[i].band) {
690 case TAS_LMAC_BAND_HB:
691 pos += scnprintf(pos, endpos - pos, "High band\n");
692 break;
693 case TAS_LMAC_BAND_LB:
694 pos += scnprintf(pos, endpos - pos, "Low band\n");
695 break;
696 case TAS_LMAC_BAND_UHB:
697 pos += scnprintf(pos, endpos - pos,
698 "Ultra high band\n");
699 break;
700 case TAS_LMAC_BAND_INVALID:
701 pos += scnprintf(pos, endpos - pos,
702 "INVALID band\n");
703 break;
704 default:
705 pos += scnprintf(pos, endpos - pos,
706 "Unsupported band (%d)\n",
707 rsp->tas_status_mac[i].band);
708 goto out;
709 }
710 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n",
711 rsp->tas_status_mac[i].static_status ?
712 "En" : "Dis");
713 pos += scnprintf(pos, endpos - pos,
714 "\tStatic Disabled Reason: ");
715 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX)
716 pos += scnprintf(pos, endpos - pos, "%s (%d)\n",
717 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason],
718 rsp->tas_status_mac[i].static_dis_reason);
719 else
720 pos += scnprintf(pos, endpos - pos,
721 "unsupported value (%d)\n",
722 rsp->tas_status_mac[i].static_dis_reason);
723
724 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n");
725 dyn_status = (rsp->tas_status_mac[i].dynamic_status);
726 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) {
727 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX)
728 pos += scnprintf(pos, endpos - pos,
729 "\t%s (%d)\n",
730 tas_current_status[tmp], tmp);
731 }
732
733 pos += scnprintf(pos, endpos - pos,
734 "Is near disconnection?: %s\n",
735 rsp->tas_status_mac[i].near_disconnection ?
736 "True" : "False");
737 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit);
738 pos += scnprintf(pos, endpos - pos,
739 "Max. regulatory pwr limit (dBm): %d.%03d\n",
740 tmp / 8, 125 * (tmp % 8));
741 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit);
742 pos += scnprintf(pos, endpos - pos,
743 "SAR limit (dBm): %d.%03d\n",
744 tmp / 8, 125 * (tmp % 8));
745 }
746
747 out:
748 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
749 kfree(buff);
750 iwl_free_resp(&hcmd);
751 return ret;
752 }
753
iwl_dbgfs_phy_integration_ver_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)754 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
755 char __user *user_buf,
756 size_t count, loff_t *ppos)
757 {
758 struct iwl_mvm *mvm = file->private_data;
759 char *buf;
760 size_t bufsz;
761 int pos;
762 ssize_t ret;
763
764 bufsz = mvm->fw->phy_integration_ver_len + 2;
765 buf = kmalloc(bufsz, GFP_KERNEL);
766 if (!buf)
767 return -ENOMEM;
768
769 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
770 mvm->fw->phy_integration_ver);
771
772 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
773
774 kfree(buf);
775 return ret;
776 }
777
778 #define PRINT_STATS_LE32(_struct, _memb) \
779 pos += scnprintf(buf + pos, bufsz - pos, \
780 fmt_table, #_memb, \
781 le32_to_cpu(_struct->_memb))
782
iwl_dbgfs_fw_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)783 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
784 char __user *user_buf, size_t count,
785 loff_t *ppos)
786 {
787 struct iwl_mvm *mvm = file->private_data;
788 static const char *fmt_table = "\t%-30s %10u\n";
789 static const char *fmt_header = "%-32s\n";
790 int pos = 0;
791 char *buf;
792 int ret;
793 size_t bufsz;
794 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
795 WIDE_ID(SYSTEM_GROUP,
796 SYSTEM_STATISTICS_CMD),
797 IWL_FW_CMD_VER_UNKNOWN);
798
799 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
800 return -EOPNOTSUPP;
801
802 if (iwl_mvm_has_new_rx_stats_api(mvm))
803 bufsz = ((sizeof(struct mvm_statistics_rx) /
804 sizeof(__le32)) * 43) + (4 * 33) + 1;
805 else
806 /* 43 = size of each data line; 33 = size of each header */
807 bufsz = ((sizeof(struct mvm_statistics_rx_v3) /
808 sizeof(__le32)) * 43) + (4 * 33) + 1;
809
810 buf = kzalloc(bufsz, GFP_KERNEL);
811 if (!buf)
812 return -ENOMEM;
813
814 mutex_lock(&mvm->mutex);
815
816 if (iwl_mvm_firmware_running(mvm))
817 iwl_mvm_request_statistics(mvm, false);
818
819 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
820 "Statistics_Rx - OFDM");
821 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
822 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm;
823
824 PRINT_STATS_LE32(ofdm, ina_cnt);
825 PRINT_STATS_LE32(ofdm, fina_cnt);
826 PRINT_STATS_LE32(ofdm, plcp_err);
827 PRINT_STATS_LE32(ofdm, crc32_err);
828 PRINT_STATS_LE32(ofdm, overrun_err);
829 PRINT_STATS_LE32(ofdm, early_overrun_err);
830 PRINT_STATS_LE32(ofdm, crc32_good);
831 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
832 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
833 PRINT_STATS_LE32(ofdm, sfd_timeout);
834 PRINT_STATS_LE32(ofdm, fina_timeout);
835 PRINT_STATS_LE32(ofdm, unresponded_rts);
836 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
837 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
838 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
839 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
840 PRINT_STATS_LE32(ofdm, dsp_self_kill);
841 PRINT_STATS_LE32(ofdm, mh_format_err);
842 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
843 PRINT_STATS_LE32(ofdm, reserved);
844 } else {
845 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm;
846
847 PRINT_STATS_LE32(ofdm, unresponded_rts);
848 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
849 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
850 PRINT_STATS_LE32(ofdm, dsp_self_kill);
851 PRINT_STATS_LE32(ofdm, reserved);
852 }
853
854 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
855 "Statistics_Rx - CCK");
856 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
857 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck;
858
859 PRINT_STATS_LE32(cck, ina_cnt);
860 PRINT_STATS_LE32(cck, fina_cnt);
861 PRINT_STATS_LE32(cck, plcp_err);
862 PRINT_STATS_LE32(cck, crc32_err);
863 PRINT_STATS_LE32(cck, overrun_err);
864 PRINT_STATS_LE32(cck, early_overrun_err);
865 PRINT_STATS_LE32(cck, crc32_good);
866 PRINT_STATS_LE32(cck, false_alarm_cnt);
867 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
868 PRINT_STATS_LE32(cck, sfd_timeout);
869 PRINT_STATS_LE32(cck, fina_timeout);
870 PRINT_STATS_LE32(cck, unresponded_rts);
871 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
872 PRINT_STATS_LE32(cck, sent_ack_cnt);
873 PRINT_STATS_LE32(cck, sent_cts_cnt);
874 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
875 PRINT_STATS_LE32(cck, dsp_self_kill);
876 PRINT_STATS_LE32(cck, mh_format_err);
877 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
878 PRINT_STATS_LE32(cck, reserved);
879 } else {
880 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck;
881
882 PRINT_STATS_LE32(cck, unresponded_rts);
883 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
884 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
885 PRINT_STATS_LE32(cck, dsp_self_kill);
886 PRINT_STATS_LE32(cck, reserved);
887 }
888
889 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
890 "Statistics_Rx - GENERAL");
891 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
892 struct mvm_statistics_rx_non_phy_v3 *general =
893 &mvm->rx_stats_v3.general;
894
895 PRINT_STATS_LE32(general, bogus_cts);
896 PRINT_STATS_LE32(general, bogus_ack);
897 PRINT_STATS_LE32(general, non_bssid_frames);
898 PRINT_STATS_LE32(general, filtered_frames);
899 PRINT_STATS_LE32(general, non_channel_beacons);
900 PRINT_STATS_LE32(general, channel_beacons);
901 PRINT_STATS_LE32(general, num_missed_bcon);
902 PRINT_STATS_LE32(general, adc_rx_saturation_time);
903 PRINT_STATS_LE32(general, ina_detection_search_time);
904 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
905 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
906 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
907 PRINT_STATS_LE32(general, interference_data_flag);
908 PRINT_STATS_LE32(general, channel_load);
909 PRINT_STATS_LE32(general, dsp_false_alarms);
910 PRINT_STATS_LE32(general, beacon_rssi_a);
911 PRINT_STATS_LE32(general, beacon_rssi_b);
912 PRINT_STATS_LE32(general, beacon_rssi_c);
913 PRINT_STATS_LE32(general, beacon_energy_a);
914 PRINT_STATS_LE32(general, beacon_energy_b);
915 PRINT_STATS_LE32(general, beacon_energy_c);
916 PRINT_STATS_LE32(general, num_bt_kills);
917 PRINT_STATS_LE32(general, mac_id);
918 PRINT_STATS_LE32(general, directed_data_mpdu);
919 } else {
920 struct mvm_statistics_rx_non_phy *general =
921 &mvm->rx_stats.general;
922
923 PRINT_STATS_LE32(general, bogus_cts);
924 PRINT_STATS_LE32(general, bogus_ack);
925 PRINT_STATS_LE32(general, non_channel_beacons);
926 PRINT_STATS_LE32(general, channel_beacons);
927 PRINT_STATS_LE32(general, num_missed_bcon);
928 PRINT_STATS_LE32(general, adc_rx_saturation_time);
929 PRINT_STATS_LE32(general, ina_detection_search_time);
930 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
931 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
932 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
933 PRINT_STATS_LE32(general, interference_data_flag);
934 PRINT_STATS_LE32(general, channel_load);
935 PRINT_STATS_LE32(general, beacon_rssi_a);
936 PRINT_STATS_LE32(general, beacon_rssi_b);
937 PRINT_STATS_LE32(general, beacon_rssi_c);
938 PRINT_STATS_LE32(general, beacon_energy_a);
939 PRINT_STATS_LE32(general, beacon_energy_b);
940 PRINT_STATS_LE32(general, beacon_energy_c);
941 PRINT_STATS_LE32(general, num_bt_kills);
942 PRINT_STATS_LE32(general, mac_id);
943 }
944
945 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
946 "Statistics_Rx - HT");
947 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {
948 struct mvm_statistics_rx_ht_phy_v1 *ht =
949 &mvm->rx_stats_v3.ofdm_ht;
950
951 PRINT_STATS_LE32(ht, plcp_err);
952 PRINT_STATS_LE32(ht, overrun_err);
953 PRINT_STATS_LE32(ht, early_overrun_err);
954 PRINT_STATS_LE32(ht, crc32_good);
955 PRINT_STATS_LE32(ht, crc32_err);
956 PRINT_STATS_LE32(ht, mh_format_err);
957 PRINT_STATS_LE32(ht, agg_crc32_good);
958 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
959 PRINT_STATS_LE32(ht, agg_cnt);
960 PRINT_STATS_LE32(ht, unsupport_mcs);
961 } else {
962 struct mvm_statistics_rx_ht_phy *ht =
963 &mvm->rx_stats.ofdm_ht;
964
965 PRINT_STATS_LE32(ht, mh_format_err);
966 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
967 PRINT_STATS_LE32(ht, agg_cnt);
968 PRINT_STATS_LE32(ht, unsupport_mcs);
969 }
970
971 mutex_unlock(&mvm->mutex);
972
973 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
974 kfree(buf);
975
976 return ret;
977 }
978 #undef PRINT_STAT_LE32
979
iwl_dbgfs_fw_system_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)980 static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file,
981 char __user *user_buf,
982 size_t count, loff_t *ppos)
983 {
984 char *buff, *pos, *endpos;
985 int ret;
986 size_t bufsz;
987 int i;
988 struct iwl_mvm_vif *mvmvif;
989 struct ieee80211_vif *vif;
990 struct iwl_mvm *mvm = file->private_data;
991 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
992 WIDE_ID(SYSTEM_GROUP,
993 SYSTEM_STATISTICS_CMD),
994 IWL_FW_CMD_VER_UNKNOWN);
995
996 /* in case of a wrong cmd version, allocate buffer only for error msg */
997 bufsz = (cmd_ver == 1) ? 4096 : 64;
998
999 buff = kzalloc(bufsz, GFP_KERNEL);
1000 if (!buff)
1001 return -ENOMEM;
1002
1003 pos = buff;
1004 endpos = pos + bufsz;
1005
1006 if (cmd_ver != 1) {
1007 pos += scnprintf(pos, endpos - pos,
1008 "System stats not supported:%d\n", cmd_ver);
1009 goto send_out;
1010 }
1011
1012 mutex_lock(&mvm->mutex);
1013 if (iwl_mvm_firmware_running(mvm))
1014 iwl_mvm_request_statistics(mvm, false);
1015
1016 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1017 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1018 if (!vif)
1019 continue;
1020
1021 if (vif->type == NL80211_IFTYPE_STATION)
1022 break;
1023 }
1024
1025 if (i == NUM_MAC_INDEX_DRIVER || !vif) {
1026 pos += scnprintf(pos, endpos - pos, "vif is NULL\n");
1027 goto release_send_out;
1028 }
1029
1030 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1031 if (!mvmvif) {
1032 pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n");
1033 goto release_send_out;
1034 }
1035
1036 for_each_mvm_vif_valid_link(mvmvif, i) {
1037 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i];
1038
1039 pos += scnprintf(pos, endpos - pos,
1040 "link_id %d", i);
1041 pos += scnprintf(pos, endpos - pos,
1042 " num_beacons %d",
1043 link_info->beacon_stats.num_beacons);
1044 pos += scnprintf(pos, endpos - pos,
1045 " accu_num_beacons %d",
1046 link_info->beacon_stats.accu_num_beacons);
1047 pos += scnprintf(pos, endpos - pos,
1048 " avg_signal %d\n",
1049 link_info->beacon_stats.avg_signal);
1050 }
1051
1052 pos += scnprintf(pos, endpos - pos,
1053 "radio_stats.rx_time %lld\n",
1054 mvm->radio_stats.rx_time);
1055 pos += scnprintf(pos, endpos - pos,
1056 "radio_stats.tx_time %lld\n",
1057 mvm->radio_stats.tx_time);
1058 pos += scnprintf(pos, endpos - pos,
1059 "accu_radio_stats.rx_time %lld\n",
1060 mvm->accu_radio_stats.rx_time);
1061 pos += scnprintf(pos, endpos - pos,
1062 "accu_radio_stats.tx_time %lld\n",
1063 mvm->accu_radio_stats.tx_time);
1064
1065 release_send_out:
1066 mutex_unlock(&mvm->mutex);
1067
1068 send_out:
1069 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1070 kfree(buff);
1071
1072 return ret;
1073 }
1074
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)1075 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
1076 char __user *user_buf, size_t count,
1077 loff_t *ppos,
1078 struct iwl_mvm_frame_stats *stats)
1079 {
1080 char *buff, *pos, *endpos;
1081 int idx, i;
1082 int ret;
1083 static const size_t bufsz = 1024;
1084
1085 buff = kmalloc(bufsz, GFP_KERNEL);
1086 if (!buff)
1087 return -ENOMEM;
1088
1089 spin_lock_bh(&mvm->drv_stats_lock);
1090
1091 pos = buff;
1092 endpos = pos + bufsz;
1093
1094 pos += scnprintf(pos, endpos - pos,
1095 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
1096 stats->legacy_frames,
1097 stats->ht_frames,
1098 stats->vht_frames);
1099 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
1100 stats->bw_20_frames,
1101 stats->bw_40_frames,
1102 stats->bw_80_frames);
1103 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
1104 stats->ngi_frames,
1105 stats->sgi_frames);
1106 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
1107 stats->siso_frames,
1108 stats->mimo2_frames);
1109 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
1110 stats->fail_frames,
1111 stats->success_frames);
1112 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
1113 stats->agg_frames);
1114 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
1115 stats->ampdu_count);
1116 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
1117 stats->ampdu_count > 0 ?
1118 (stats->agg_frames / stats->ampdu_count) : 0);
1119
1120 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
1121
1122 idx = stats->last_frame_idx - 1;
1123 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
1124 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
1125 if (stats->last_rates[idx] == 0)
1126 continue;
1127 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
1128 (int)(ARRAY_SIZE(stats->last_rates) - i));
1129 pos += rs_pretty_print_rate_v1(pos, endpos - pos,
1130 stats->last_rates[idx]);
1131 if (pos < endpos - 1)
1132 *pos++ = '\n';
1133 }
1134 spin_unlock_bh(&mvm->drv_stats_lock);
1135
1136 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
1137 kfree(buff);
1138
1139 return ret;
1140 }
1141
iwl_dbgfs_drv_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1142 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
1143 char __user *user_buf, size_t count,
1144 loff_t *ppos)
1145 {
1146 struct iwl_mvm *mvm = file->private_data;
1147
1148 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
1149 &mvm->drv_rx_stats);
1150 }
1151
iwl_dbgfs_fw_restart_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1152 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
1153 size_t count, loff_t *ppos)
1154 {
1155 int __maybe_unused ret;
1156
1157 if (!iwl_mvm_firmware_running(mvm))
1158 return -EIO;
1159
1160 mutex_lock(&mvm->mutex);
1161
1162 /* allow one more restart that we're provoking here */
1163 if (mvm->fw_restart >= 0)
1164 mvm->fw_restart++;
1165
1166 if (count == 6 && !strcmp(buf, "nolog\n")) {
1167 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1168 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
1169 }
1170
1171 /* take the return value to make compiler happy - it will fail anyway */
1172 ret = iwl_mvm_send_cmd_pdu(mvm,
1173 WIDE_ID(LONG_GROUP, REPLY_ERROR),
1174 0, 0, NULL);
1175
1176 mutex_unlock(&mvm->mutex);
1177
1178 return count;
1179 }
1180
iwl_dbgfs_fw_nmi_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1181 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
1182 size_t count, loff_t *ppos)
1183 {
1184 if (!iwl_mvm_firmware_running(mvm))
1185 return -EIO;
1186
1187 IWL_ERR(mvm, "Triggering an NMI from debugfs\n");
1188
1189 if (count == 6 && !strcmp(buf, "nolog\n"))
1190 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
1191
1192 iwl_force_nmi(mvm->trans);
1193
1194 return count;
1195 }
1196
1197 static ssize_t
iwl_dbgfs_scan_ant_rxchain_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1198 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
1199 char __user *user_buf,
1200 size_t count, loff_t *ppos)
1201 {
1202 struct iwl_mvm *mvm = file->private_data;
1203 int pos = 0;
1204 char buf[32];
1205 const size_t bufsz = sizeof(buf);
1206
1207 /* print which antennas were set for the scan command by the user */
1208 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
1209 if (mvm->scan_rx_ant & ANT_A)
1210 pos += scnprintf(buf + pos, bufsz - pos, "A");
1211 if (mvm->scan_rx_ant & ANT_B)
1212 pos += scnprintf(buf + pos, bufsz - pos, "B");
1213 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant);
1214
1215 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1216 }
1217
1218 static ssize_t
iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1219 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
1220 size_t count, loff_t *ppos)
1221 {
1222 u8 scan_rx_ant;
1223
1224 if (!iwl_mvm_firmware_running(mvm))
1225 return -EIO;
1226
1227 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
1228 return -EINVAL;
1229 if (scan_rx_ant > ANT_ABC)
1230 return -EINVAL;
1231 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
1232 return -EINVAL;
1233
1234 if (mvm->scan_rx_ant != scan_rx_ant) {
1235 mvm->scan_rx_ant = scan_rx_ant;
1236 if (fw_has_capa(&mvm->fw->ucode_capa,
1237 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1238 iwl_mvm_config_scan(mvm);
1239 }
1240
1241 return count;
1242 }
1243
iwl_dbgfs_indirection_tbl_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1244 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm,
1245 char *buf, size_t count,
1246 loff_t *ppos)
1247 {
1248 struct iwl_rss_config_cmd cmd = {
1249 .flags = cpu_to_le32(IWL_RSS_ENABLE),
1250 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
1251 IWL_RSS_HASH_TYPE_IPV4_UDP |
1252 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
1253 IWL_RSS_HASH_TYPE_IPV6_TCP |
1254 IWL_RSS_HASH_TYPE_IPV6_UDP |
1255 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
1256 };
1257 int ret, i, num_repeats, nbytes = count / 2;
1258
1259 ret = hex2bin(cmd.indirection_table, buf, nbytes);
1260 if (ret)
1261 return ret;
1262
1263 /*
1264 * The input is the redirection table, partial or full.
1265 * Repeat the pattern if needed.
1266 * For example, input of 01020F will be repeated 42 times,
1267 * indirecting RSS hash results to queues 1, 2, 15 (skipping
1268 * queues 3 - 14).
1269 */
1270 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes;
1271 for (i = 1; i < num_repeats; i++)
1272 memcpy(&cmd.indirection_table[i * nbytes],
1273 cmd.indirection_table, nbytes);
1274 /* handle cut in the middle pattern for the last places */
1275 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table,
1276 ARRAY_SIZE(cmd.indirection_table) % nbytes);
1277
1278 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
1279
1280 mutex_lock(&mvm->mutex);
1281 if (iwl_mvm_firmware_running(mvm))
1282 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0,
1283 sizeof(cmd), &cmd);
1284 else
1285 ret = 0;
1286 mutex_unlock(&mvm->mutex);
1287
1288 return ret ?: count;
1289 }
1290
iwl_dbgfs_inject_packet_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1291 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm,
1292 char *buf, size_t count,
1293 loff_t *ppos)
1294 {
1295 struct iwl_op_mode *opmode = container_of((void *)mvm,
1296 struct iwl_op_mode,
1297 op_mode_specific);
1298 struct iwl_rx_cmd_buffer rxb = {
1299 ._rx_page_order = 0,
1300 .truesize = 0, /* not used */
1301 ._offset = 0,
1302 };
1303 struct iwl_rx_packet *pkt;
1304 int bin_len = count / 2;
1305 int ret = -EINVAL;
1306
1307 if (!iwl_mvm_firmware_running(mvm))
1308 return -EIO;
1309
1310 /* supporting only MQ RX */
1311 if (!mvm->trans->trans_cfg->mq_rx_supported)
1312 return -EOPNOTSUPP;
1313
1314 rxb._page = alloc_pages(GFP_ATOMIC, 0);
1315 if (!rxb._page)
1316 return -ENOMEM;
1317 pkt = rxb_addr(&rxb);
1318
1319 ret = hex2bin(page_address(rxb._page), buf, bin_len);
1320 if (ret)
1321 goto out;
1322
1323 /* avoid invalid memory access and malformed packet */
1324 if (bin_len < sizeof(*pkt) ||
1325 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt))
1326 goto out;
1327
1328 local_bh_disable();
1329 iwl_mvm_rx_mq(opmode, NULL, &rxb);
1330 local_bh_enable();
1331 ret = 0;
1332
1333 out:
1334 iwl_free_rxb(&rxb);
1335
1336 return ret ?: count;
1337 }
1338
_iwl_dbgfs_inject_beacon_ie(struct iwl_mvm * mvm,char * bin,int len)1339 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len)
1340 {
1341 struct ieee80211_vif *vif;
1342 struct iwl_mvm_vif *mvmvif;
1343 struct sk_buff *beacon;
1344 struct ieee80211_tx_info *info;
1345 struct iwl_mac_beacon_cmd beacon_cmd = {};
1346 unsigned int link_id;
1347 u8 rate;
1348 int i;
1349
1350 len /= 2;
1351
1352 /* Element len should be represented by u8 */
1353 if (len >= U8_MAX)
1354 return -EINVAL;
1355
1356 if (!iwl_mvm_firmware_running(mvm))
1357 return -EIO;
1358
1359 if (!iwl_mvm_has_new_tx_api(mvm) &&
1360 !fw_has_api(&mvm->fw->ucode_capa,
1361 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
1362 return -EINVAL;
1363
1364 mutex_lock(&mvm->mutex);
1365
1366 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {
1367 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false);
1368 if (!vif)
1369 continue;
1370
1371 if (vif->type == NL80211_IFTYPE_AP)
1372 break;
1373 }
1374
1375 if (i == NUM_MAC_INDEX_DRIVER || !vif)
1376 goto out_err;
1377
1378 mvm->hw->extra_beacon_tailroom = len;
1379
1380 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0);
1381 if (!beacon)
1382 goto out_err;
1383
1384 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) {
1385 dev_kfree_skb(beacon);
1386 goto out_err;
1387 }
1388
1389 mvm->beacon_inject_active = true;
1390
1391 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1392 info = IEEE80211_SKB_CB(beacon);
1393 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif);
1394
1395 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1396 beacon_cmd.flags =
1397 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw,
1398 rate));
1399 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
1400 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12)
1401 beacon_cmd.link_id =
1402 cpu_to_le32(mvmvif->link[link_id]->fw_link_id);
1403 else
1404 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id);
1405
1406 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
1407 &beacon_cmd.tim_size,
1408 beacon->data, beacon->len);
1409
1410 if (iwl_fw_lookup_cmd_ver(mvm->fw,
1411 BEACON_TEMPLATE_CMD, 0) >= 14) {
1412 u32 offset = iwl_mvm_find_ie_offset(beacon->data,
1413 WLAN_EID_S1G_TWT,
1414 beacon->len);
1415
1416 beacon_cmd.btwt_offset = cpu_to_le32(offset);
1417 }
1418
1419 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd,
1420 sizeof(beacon_cmd));
1421 }
1422 mutex_unlock(&mvm->mutex);
1423
1424 dev_kfree_skb(beacon);
1425
1426 return 0;
1427
1428 out_err:
1429 mutex_unlock(&mvm->mutex);
1430 return -EINVAL;
1431 }
1432
iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1433 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm,
1434 char *buf, size_t count,
1435 loff_t *ppos)
1436 {
1437 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count);
1438
1439 mvm->hw->extra_beacon_tailroom = 0;
1440 return ret ?: count;
1441 }
1442
iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1443 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm,
1444 char *buf,
1445 size_t count,
1446 loff_t *ppos)
1447 {
1448 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0);
1449
1450 mvm->hw->extra_beacon_tailroom = 0;
1451 mvm->beacon_inject_active = false;
1452 return ret ?: count;
1453 }
1454
iwl_dbgfs_fw_dbg_conf_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1455 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
1456 char __user *user_buf,
1457 size_t count, loff_t *ppos)
1458 {
1459 struct iwl_mvm *mvm = file->private_data;
1460 int conf;
1461 char buf[8];
1462 const size_t bufsz = sizeof(buf);
1463 int pos = 0;
1464
1465 mutex_lock(&mvm->mutex);
1466 conf = mvm->fwrt.dump.conf;
1467 mutex_unlock(&mvm->mutex);
1468
1469 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
1470
1471 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1472 }
1473
iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1474 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1475 char *buf, size_t count,
1476 loff_t *ppos)
1477 {
1478 unsigned int conf_id;
1479 int ret;
1480
1481 if (!iwl_mvm_firmware_running(mvm))
1482 return -EIO;
1483
1484 ret = kstrtouint(buf, 0, &conf_id);
1485 if (ret)
1486 return ret;
1487
1488 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1489 return -EINVAL;
1490
1491 mutex_lock(&mvm->mutex);
1492 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id);
1493 mutex_unlock(&mvm->mutex);
1494
1495 return ret ?: count;
1496 }
1497
iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1498 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1499 char *buf, size_t count,
1500 loff_t *ppos)
1501 {
1502 if (count == 0)
1503 return 0;
1504
1505 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER,
1506 NULL);
1507
1508 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf,
1509 (count - 1), NULL);
1510
1511 return count;
1512 }
1513
iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1514 static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm,
1515 char *buf, size_t count,
1516 loff_t *ppos)
1517 {
1518 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1519 return -EOPNOTSUPP;
1520
1521 mutex_lock(&mvm->mutex);
1522 iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt);
1523 mutex_unlock(&mvm->mutex);
1524
1525 return count;
1526 }
1527
iwl_dbgfs_dbg_time_point_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1528 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
1529 char *buf, size_t count,
1530 loff_t *ppos)
1531 {
1532 u32 timepoint;
1533
1534 if (kstrtou32(buf, 0, &timepoint))
1535 return -EINVAL;
1536
1537 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
1538 timepoint >= IWL_FW_INI_TIME_POINT_NUM)
1539 return -EINVAL;
1540
1541 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);
1542
1543 return count;
1544 }
1545
1546 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1547 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1548 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1549 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1550 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1551 debugfs_create_file(alias, mode, parent, mvm, \
1552 &iwl_dbgfs_##name##_ops); \
1553 } while (0)
1554 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1555 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1556
1557 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)1558 _iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *,
1559 struct iwl_mvm_sta *,
1560 struct iwl_mvm *,
1561 struct iwl_mvm_link_sta *,
1562 char *,
1563 size_t, loff_t *),
1564 struct file *file,
1565 char *buf, size_t buf_size, loff_t *ppos)
1566 {
1567 struct ieee80211_link_sta *link_sta = file->private_data;
1568 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1569 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1570 struct iwl_mvm_link_sta *mvm_link_sta;
1571 ssize_t ret;
1572
1573 mutex_lock(&mvm->mutex);
1574
1575 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1576 lockdep_is_held(&mvm->mutex));
1577 if (WARN_ON(!mvm_link_sta)) {
1578 mutex_unlock(&mvm->mutex);
1579 return -ENODEV;
1580 }
1581
1582 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos);
1583
1584 mutex_unlock(&mvm->mutex);
1585
1586 return ret;
1587 }
1588
1589 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)1590 _iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *,
1591 struct iwl_mvm_sta *,
1592 struct iwl_mvm *,
1593 struct iwl_mvm_link_sta *,
1594 char __user *,
1595 size_t, loff_t *),
1596 struct file *file,
1597 char __user *user_buf, size_t count, loff_t *ppos)
1598 {
1599 struct ieee80211_link_sta *link_sta = file->private_data;
1600 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
1601 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
1602 struct iwl_mvm_link_sta *mvm_link_sta;
1603 ssize_t ret;
1604
1605 mutex_lock(&mvm->mutex);
1606
1607 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
1608 lockdep_is_held(&mvm->mutex));
1609 if (WARN_ON(!mvm_link_sta)) {
1610 mutex_unlock(&mvm->mutex);
1611 return -ENODEV;
1612 }
1613
1614 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos);
1615
1616 mutex_unlock(&mvm->mutex);
1617
1618 return ret;
1619 }
1620
1621 #define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \
1622 static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \
1623 const char __user *user_buf, \
1624 size_t count, loff_t *ppos) \
1625 { \
1626 char buf[buflen] = {}; \
1627 size_t buf_size = min(count, sizeof(buf) - 1); \
1628 \
1629 if (copy_from_user(buf, user_buf, buf_size)) \
1630 return -EFAULT; \
1631 \
1632 return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \
1633 file, \
1634 buf, buf_size, ppos); \
1635 } \
1636
1637 #define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1638 static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \
1639 char __user *user_buf, \
1640 size_t count, loff_t *ppos) \
1641 { \
1642 return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \
1643 file, \
1644 user_buf, count, ppos); \
1645 } \
1646
1647 #define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1648 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1649 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1650 .write = _iwl_dbgfs_link_sta_##name##_write, \
1651 .open = simple_open, \
1652 .llseek = generic_file_llseek, \
1653 }
1654
1655 #define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \
1656 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1657 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1658 .read = _iwl_dbgfs_link_sta_##name##_read, \
1659 .open = simple_open, \
1660 .llseek = generic_file_llseek, \
1661 }
1662
1663 #define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \
1664 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \
1665 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \
1666 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \
1667 .read = _iwl_dbgfs_link_sta_##name##_read, \
1668 .write = _iwl_dbgfs_link_sta_##name##_write, \
1669 .open = simple_open, \
1670 .llseek = generic_file_llseek, \
1671 }
1672
1673 #define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \
1674 debugfs_create_file(alias, mode, parent, link_sta, \
1675 &iwl_dbgfs_link_sta_##name##_ops)
1676 #define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \
1677 MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode)
1678
1679 static ssize_t
iwl_dbgfs_prph_reg_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1680 iwl_dbgfs_prph_reg_read(struct file *file,
1681 char __user *user_buf,
1682 size_t count, loff_t *ppos)
1683 {
1684 struct iwl_mvm *mvm = file->private_data;
1685 int pos = 0;
1686 char buf[32];
1687 const size_t bufsz = sizeof(buf);
1688
1689 if (!mvm->dbgfs_prph_reg_addr)
1690 return -EINVAL;
1691
1692 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1693 mvm->dbgfs_prph_reg_addr,
1694 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1695
1696 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1697 }
1698
1699 static ssize_t
iwl_dbgfs_prph_reg_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1700 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1701 size_t count, loff_t *ppos)
1702 {
1703 u8 args;
1704 u32 value;
1705
1706 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1707 /* if we only want to set the reg address - nothing more to do */
1708 if (args == 1)
1709 goto out;
1710
1711 /* otherwise, make sure we have both address and value */
1712 if (args != 2)
1713 return -EINVAL;
1714
1715 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1716
1717 out:
1718 return count;
1719 }
1720
1721 static ssize_t
iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1722 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1723 size_t count, loff_t *ppos)
1724 {
1725 int ret;
1726
1727 if (!iwl_mvm_firmware_running(mvm))
1728 return -EIO;
1729
1730 mutex_lock(&mvm->mutex);
1731 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1732 mutex_unlock(&mvm->mutex);
1733
1734 return ret ?: count;
1735 }
1736
1737 struct iwl_mvm_sniffer_apply {
1738 struct iwl_mvm *mvm;
1739 u8 *bssid;
1740 u16 aid;
1741 };
1742
iwl_mvm_sniffer_apply(struct iwl_notif_wait_data * notif_data,struct iwl_rx_packet * pkt,void * data)1743 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data,
1744 struct iwl_rx_packet *pkt, void *data)
1745 {
1746 struct iwl_mvm_sniffer_apply *apply = data;
1747
1748 apply->mvm->cur_aid = cpu_to_le16(apply->aid);
1749 memcpy(apply->mvm->cur_bssid, apply->bssid,
1750 sizeof(apply->mvm->cur_bssid));
1751
1752 return true;
1753 }
1754
1755 static ssize_t
iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1756 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf,
1757 size_t count, loff_t *ppos)
1758 {
1759 struct iwl_notification_wait wait;
1760 struct iwl_he_monitor_cmd he_mon_cmd = {};
1761 struct iwl_mvm_sniffer_apply apply = {
1762 .mvm = mvm,
1763 };
1764 u16 wait_cmds[] = {
1765 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1766 };
1767 u32 aid;
1768 int ret;
1769
1770 if (!iwl_mvm_firmware_running(mvm))
1771 return -EIO;
1772
1773 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
1774 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
1775 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
1776 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
1777 if (ret != 7)
1778 return -EINVAL;
1779
1780 he_mon_cmd.aid = cpu_to_le16(aid);
1781
1782 apply.aid = aid;
1783 apply.bssid = (void *)he_mon_cmd.bssid;
1784
1785 mutex_lock(&mvm->mutex);
1786
1787 /*
1788 * Use the notification waiter to get our function triggered
1789 * in sequence with other RX. This ensures that frames we get
1790 * on the RX queue _before_ the new configuration is applied
1791 * still have mvm->cur_aid pointing to the old AID, and that
1792 * frames on the RX queue _after_ the firmware processed the
1793 * new configuration (and sent the response, synchronously)
1794 * get mvm->cur_aid correctly set to the new AID.
1795 */
1796 iwl_init_notification_wait(&mvm->notif_wait, &wait,
1797 wait_cmds, ARRAY_SIZE(wait_cmds),
1798 iwl_mvm_sniffer_apply, &apply);
1799
1800 ret = iwl_mvm_send_cmd_pdu(mvm,
1801 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD),
1802 0,
1803 sizeof(he_mon_cmd), &he_mon_cmd);
1804
1805 /* no need to really wait, we already did anyway */
1806 iwl_remove_notification(&mvm->notif_wait, &wait);
1807
1808 mutex_unlock(&mvm->mutex);
1809
1810 return ret ?: count;
1811 }
1812
1813 static ssize_t
iwl_dbgfs_he_sniffer_params_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1814 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf,
1815 size_t count, loff_t *ppos)
1816 {
1817 struct iwl_mvm *mvm = file->private_data;
1818 u8 buf[32];
1819 int len;
1820
1821 len = scnprintf(buf, sizeof(buf),
1822 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
1823 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0],
1824 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3],
1825 mvm->cur_bssid[4], mvm->cur_bssid[5]);
1826
1827 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1828 }
1829
1830 static ssize_t
iwl_dbgfs_uapsd_noagg_bssids_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1831 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
1832 size_t count, loff_t *ppos)
1833 {
1834 struct iwl_mvm *mvm = file->private_data;
1835 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1];
1836 unsigned int pos = 0;
1837 size_t bufsz = sizeof(buf);
1838 int i;
1839
1840 mutex_lock(&mvm->mutex);
1841
1842 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++)
1843 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
1844 mvm->uapsd_noagg_bssids[i].addr);
1845
1846 mutex_unlock(&mvm->mutex);
1847
1848 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1849 }
1850
1851 static ssize_t
iwl_dbgfs_ltr_config_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1852 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
1853 char *buf, size_t count, loff_t *ppos)
1854 {
1855 int ret;
1856 struct iwl_ltr_config_cmd ltr_config = {0};
1857
1858 if (!iwl_mvm_firmware_running(mvm))
1859 return -EIO;
1860
1861 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
1862 <r_config.flags,
1863 <r_config.static_long,
1864 <r_config.static_short,
1865 <r_config.ltr_cfg_values[0],
1866 <r_config.ltr_cfg_values[1],
1867 <r_config.ltr_cfg_values[2],
1868 <r_config.ltr_cfg_values[3]) != 7) {
1869 return -EINVAL;
1870 }
1871
1872 mutex_lock(&mvm->mutex);
1873 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
1874 <r_config);
1875 mutex_unlock(&mvm->mutex);
1876
1877 if (ret)
1878 IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
1879
1880 return ret ?: count;
1881 }
1882
iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm * mvm,char * buf,size_t count,loff_t * ppos)1883 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf,
1884 size_t count, loff_t *ppos)
1885 {
1886 int ret = 0;
1887 u16 op_id;
1888
1889 if (kstrtou16(buf, 10, &op_id))
1890 return -EINVAL;
1891
1892 /* value zero triggers re-sending the default table to the device */
1893 if (!op_id) {
1894 mutex_lock(&mvm->mutex);
1895 ret = iwl_rfi_send_config_cmd(mvm, NULL);
1896 mutex_unlock(&mvm->mutex);
1897 } else {
1898 ret = -EOPNOTSUPP; /* in the future a new table will be added */
1899 }
1900
1901 return ret ?: count;
1902 }
1903
1904 /* The size computation is as follows:
1905 * each number needs at most 3 characters, number of rows is the size of
1906 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards
1907 * needs 6 characters for numbers and 5 for the punctuation around.
1908 */
1909 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\
1910 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5)))
1911
iwl_dbgfs_rfi_freq_table_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1912 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file,
1913 char __user *user_buf,
1914 size_t count, loff_t *ppos)
1915 {
1916 struct iwl_mvm *mvm = file->private_data;
1917 struct iwl_rfi_freq_table_resp_cmd *resp;
1918 u32 status;
1919 char buf[IWL_RFI_BUF_SIZE];
1920 int i, j, pos = 0;
1921
1922 resp = iwl_rfi_get_freq_table(mvm);
1923 if (IS_ERR(resp))
1924 return PTR_ERR(resp);
1925
1926 status = le32_to_cpu(resp->status);
1927 if (status != RFI_FREQ_TABLE_OK) {
1928 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status);
1929 goto out;
1930 }
1931
1932 for (i = 0; i < ARRAY_SIZE(resp->table); i++) {
1933 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ",
1934 resp->table[i].freq);
1935
1936 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++)
1937 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos,
1938 "(%d, %d) ",
1939 resp->table[i].channels[j],
1940 resp->table[i].bands[j]);
1941 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n");
1942 }
1943
1944 out:
1945 kfree(resp);
1946 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1947 }
1948
1949 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1950
1951 /* Device wide debugfs entries */
1952 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1953 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1954 MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8);
1955 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1956 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1957 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1958 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1959 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1960 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1961 MVM_DEBUGFS_READ_FILE_OPS(stations);
1962 MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data);
1963 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1964 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1965 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1966 MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats);
1967 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1968 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
1969 MVM_DEBUGFS_READ_FILE_OPS(tas_get_status);
1970 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1971 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1972 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1973 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1974 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1975 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64);
1976 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
1977 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1978 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1979 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1980 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1981 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1982
1983 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
1984
1985 #ifdef CONFIG_ACPI
1986 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
1987 MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable);
1988 #endif
1989
1990 MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16);
1991
1992 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
1993
1994 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
1995 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16);
1996
iwl_dbgfs_mem_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1997 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
1998 size_t count, loff_t *ppos)
1999 {
2000 struct iwl_mvm *mvm = file->private_data;
2001 struct iwl_dbg_mem_access_cmd cmd = {};
2002 struct iwl_dbg_mem_access_rsp *rsp;
2003 struct iwl_host_cmd hcmd = {
2004 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2005 .data = { &cmd, },
2006 .len = { sizeof(cmd) },
2007 };
2008 size_t delta;
2009 ssize_t ret, len;
2010
2011 if (!iwl_mvm_firmware_running(mvm))
2012 return -EIO;
2013
2014 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2015 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ);
2016
2017 /* Take care of alignment of both the position and the length */
2018 delta = *ppos & 0x3;
2019 cmd.addr = cpu_to_le32(*ppos - delta);
2020 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4,
2021 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS));
2022
2023 mutex_lock(&mvm->mutex);
2024 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2025 mutex_unlock(&mvm->mutex);
2026
2027 if (ret < 0)
2028 return ret;
2029
2030 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2031 ret = -EIO;
2032 goto out;
2033 }
2034
2035 rsp = (void *)hcmd.resp_pkt->data;
2036 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) {
2037 ret = -ENXIO;
2038 goto out;
2039 }
2040
2041 len = min((size_t)le32_to_cpu(rsp->len) << 2,
2042 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp));
2043 len = min(len - delta, count);
2044 if (len < 0) {
2045 ret = -EFAULT;
2046 goto out;
2047 }
2048
2049 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len);
2050 *ppos += ret;
2051
2052 out:
2053 iwl_free_resp(&hcmd);
2054 return ret;
2055 }
2056
iwl_dbgfs_mem_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2057 static ssize_t iwl_dbgfs_mem_write(struct file *file,
2058 const char __user *user_buf, size_t count,
2059 loff_t *ppos)
2060 {
2061 struct iwl_mvm *mvm = file->private_data;
2062 struct iwl_dbg_mem_access_cmd *cmd;
2063 struct iwl_dbg_mem_access_rsp *rsp;
2064 struct iwl_host_cmd hcmd = {};
2065 size_t cmd_size;
2066 size_t data_size;
2067 u32 op, len;
2068 ssize_t ret;
2069
2070 if (!iwl_mvm_firmware_running(mvm))
2071 return -EIO;
2072
2073 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR);
2074
2075 if (*ppos & 0x3 || count < 4) {
2076 op = DEBUG_MEM_OP_WRITE_BYTES;
2077 len = min(count, (size_t)(4 - (*ppos & 0x3)));
2078 data_size = len;
2079 } else {
2080 op = DEBUG_MEM_OP_WRITE;
2081 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS);
2082 data_size = len << 2;
2083 }
2084
2085 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4);
2086 cmd = kzalloc(cmd_size, GFP_KERNEL);
2087 if (!cmd)
2088 return -ENOMEM;
2089
2090 cmd->op = cpu_to_le32(op);
2091 cmd->len = cpu_to_le32(len);
2092 cmd->addr = cpu_to_le32(*ppos);
2093 if (copy_from_user((void *)cmd->data, user_buf, data_size)) {
2094 kfree(cmd);
2095 return -EFAULT;
2096 }
2097
2098 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
2099 hcmd.data[0] = (void *)cmd;
2100 hcmd.len[0] = cmd_size;
2101
2102 mutex_lock(&mvm->mutex);
2103 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2104 mutex_unlock(&mvm->mutex);
2105
2106 kfree(cmd);
2107
2108 if (ret < 0)
2109 return ret;
2110
2111 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) {
2112 ret = -EIO;
2113 goto out;
2114 }
2115
2116 rsp = (void *)hcmd.resp_pkt->data;
2117 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) {
2118 ret = -ENXIO;
2119 goto out;
2120 }
2121
2122 ret = data_size;
2123 *ppos += ret;
2124
2125 out:
2126 iwl_free_resp(&hcmd);
2127 return ret;
2128 }
2129
2130 static const struct file_operations iwl_dbgfs_mem_ops = {
2131 .read = iwl_dbgfs_mem_read,
2132 .write = iwl_dbgfs_mem_write,
2133 .open = simple_open,
2134 .llseek = default_llseek,
2135 };
2136
iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta,struct dentry * dir)2137 void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw,
2138 struct ieee80211_vif *vif,
2139 struct ieee80211_link_sta *link_sta,
2140 struct dentry *dir)
2141 {
2142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2143
2144 if (iwl_mvm_has_tlc_offload(mvm)) {
2145 MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400);
2146 }
2147
2148 MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600);
2149 }
2150
iwl_mvm_dbgfs_register(struct iwl_mvm * mvm)2151 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
2152 {
2153 struct dentry *bcast_dir __maybe_unused;
2154
2155 spin_lock_init(&mvm->drv_stats_lock);
2156
2157 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200);
2158 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600);
2159 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600);
2160 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400);
2161 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400);
2162 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200);
2163 MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200);
2164 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200);
2165 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400);
2166 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600);
2167 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400);
2168 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400);
2169 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400);
2170 MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400);
2171 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200);
2172 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200);
2173 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600);
2174 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600);
2175 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600);
2176 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200);
2177 MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200);
2178 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200);
2179 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200);
2180 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200);
2181 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
2182 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
2183 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
2184 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600);
2185
2186 if (mvm->fw->phy_integration_ver)
2187 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
2188 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400);
2189 #ifdef CONFIG_ACPI
2190 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
2191 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400);
2192 #endif
2193 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
2194
2195 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
2196 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
2197
2198 debugfs_create_bool("enable_scan_iteration_notif", 0600,
2199 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
2200 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
2201 &mvm->drop_bcn_ap_mode);
2202
2203 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR);
2204
2205 #ifdef CONFIG_PM_SLEEP
2206 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
2207 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
2208 &mvm->d3_wake_sysassert);
2209 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir,
2210 &mvm->last_netdetect_scans);
2211 #endif
2212
2213 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir,
2214 &mvm->ps_disabled);
2215 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir,
2216 &mvm->nvm_hw_blob);
2217 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir,
2218 &mvm->nvm_sw_blob);
2219 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir,
2220 &mvm->nvm_calib_blob);
2221 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir,
2222 &mvm->nvm_prod_blob);
2223 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir,
2224 &mvm->nvm_phy_sku_blob);
2225 debugfs_create_blob("nvm_reg", S_IRUSR,
2226 mvm->debugfs_dir, &mvm->nvm_reg_blob);
2227
2228 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm,
2229 &iwl_dbgfs_mem_ops);
2230
2231 debugfs_create_bool("rx_ts_ptp", 0600, mvm->debugfs_dir,
2232 &mvm->rx_ts_ptp);
2233
2234 /*
2235 * Create a symlink with mac80211. It will be removed when mac80211
2236 * exists (before the opmode exists which removes the target.)
2237 */
2238 if (!IS_ERR(mvm->debugfs_dir)) {
2239 char buf[100];
2240
2241 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent);
2242 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir,
2243 buf);
2244 }
2245 }
2246