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 "fw/error-dump.h" 19 #include "fw/api/phy-ctxt.h" 20 21 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 22 char __user *user_buf, 23 size_t count, loff_t *ppos) 24 { 25 struct iwl_mvm *mvm = file->private_data; 26 char buf[16]; 27 int pos, budget; 28 29 if (!iwl_mvm_is_ctdp_supported(mvm)) 30 return -EOPNOTSUPP; 31 32 if (!iwl_mvm_firmware_running(mvm) || 33 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 34 return -EIO; 35 36 mutex_lock(&mvm->mutex); 37 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 38 mutex_unlock(&mvm->mutex); 39 40 if (budget < 0) 41 return budget; 42 43 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 44 45 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 46 } 47 48 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 49 size_t count, loff_t *ppos) 50 { 51 int ret; 52 53 if (!iwl_mvm_is_ctdp_supported(mvm)) 54 return -EOPNOTSUPP; 55 56 if (!iwl_mvm_firmware_running(mvm) || 57 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 58 return -EIO; 59 60 mutex_lock(&mvm->mutex); 61 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 62 mutex_unlock(&mvm->mutex); 63 64 return ret ?: count; 65 } 66 67 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 68 size_t count, loff_t *ppos) 69 { 70 if (!iwl_mvm_firmware_running(mvm) || 71 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 72 return -EIO; 73 74 iwl_mvm_enter_ctkill(mvm); 75 76 return count; 77 } 78 79 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 80 size_t count, loff_t *ppos) 81 { 82 int ret; 83 u32 flush_arg; 84 85 if (!iwl_mvm_firmware_running(mvm) || 86 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 87 return -EIO; 88 89 if (kstrtou32(buf, 0, &flush_arg)) 90 return -EINVAL; 91 92 if (iwl_mvm_has_new_tx_api(mvm)) { 93 IWL_DEBUG_TX_QUEUES(mvm, 94 "FLUSHING all tids queues on sta_id = %d\n", 95 flush_arg); 96 mutex_lock(&mvm->mutex); 97 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF) 98 ? : count; 99 mutex_unlock(&mvm->mutex); 100 return ret; 101 } 102 103 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 104 flush_arg); 105 106 mutex_lock(&mvm->mutex); 107 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count; 108 mutex_unlock(&mvm->mutex); 109 110 return ret; 111 } 112 113 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 114 size_t count, loff_t *ppos) 115 { 116 struct iwl_mvm_sta *mvmsta; 117 int sta_id, drain, ret; 118 119 if (!iwl_mvm_firmware_running(mvm) || 120 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 121 return -EIO; 122 123 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 124 return -EINVAL; 125 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations) 126 return -EINVAL; 127 if (drain < 0 || drain > 1) 128 return -EINVAL; 129 130 mutex_lock(&mvm->mutex); 131 132 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 133 134 if (!mvmsta) 135 ret = -ENOENT; 136 else 137 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 138 139 mutex_unlock(&mvm->mutex); 140 141 return ret; 142 } 143 144 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 145 size_t count, loff_t *ppos) 146 { 147 struct iwl_mvm *mvm = file->private_data; 148 const struct fw_img *img; 149 unsigned int ofs, len; 150 size_t ret; 151 u8 *ptr; 152 153 if (!iwl_mvm_firmware_running(mvm)) 154 return -EINVAL; 155 156 /* default is to dump the entire data segment */ 157 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 158 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 159 len = img->sec[IWL_UCODE_SECTION_DATA].len; 160 161 if (mvm->dbgfs_sram_len) { 162 ofs = mvm->dbgfs_sram_offset; 163 len = mvm->dbgfs_sram_len; 164 } 165 166 ptr = kzalloc(len, GFP_KERNEL); 167 if (!ptr) 168 return -ENOMEM; 169 170 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 171 172 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 173 174 kfree(ptr); 175 176 return ret; 177 } 178 179 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 180 size_t count, loff_t *ppos) 181 { 182 const struct fw_img *img; 183 u32 offset, len; 184 u32 img_offset, img_len; 185 186 if (!iwl_mvm_firmware_running(mvm)) 187 return -EINVAL; 188 189 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 190 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 191 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 192 193 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 194 if ((offset & 0x3) || (len & 0x3)) 195 return -EINVAL; 196 197 if (offset + len > img_offset + img_len) 198 return -EINVAL; 199 200 mvm->dbgfs_sram_offset = offset; 201 mvm->dbgfs_sram_len = len; 202 } else { 203 mvm->dbgfs_sram_offset = 0; 204 mvm->dbgfs_sram_len = 0; 205 } 206 207 return count; 208 } 209 210 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 211 char __user *user_buf, 212 size_t count, loff_t *ppos) 213 { 214 struct iwl_mvm *mvm = file->private_data; 215 char buf[16]; 216 int pos; 217 218 if (!mvm->temperature_test) 219 pos = scnprintf(buf, sizeof(buf), "disabled\n"); 220 else 221 pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature); 222 223 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 224 } 225 226 /* 227 * Set NIC Temperature 228 * Cause the driver to ignore the actual NIC temperature reported by the FW 229 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 230 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 231 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 232 */ 233 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 234 char *buf, size_t count, 235 loff_t *ppos) 236 { 237 int temperature; 238 239 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 240 return -EIO; 241 242 if (kstrtoint(buf, 10, &temperature)) 243 return -EINVAL; 244 /* not a legal temperature */ 245 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 246 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 247 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 248 return -EINVAL; 249 250 mutex_lock(&mvm->mutex); 251 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 252 if (!mvm->temperature_test) 253 goto out; 254 255 mvm->temperature_test = false; 256 /* Since we can't read the temp while awake, just set 257 * it to zero until we get the next RX stats from the 258 * firmware. 259 */ 260 mvm->temperature = 0; 261 } else { 262 mvm->temperature_test = true; 263 mvm->temperature = temperature; 264 } 265 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 266 mvm->temperature_test ? "En" : "Dis", 267 mvm->temperature); 268 /* handle the temperature change */ 269 iwl_mvm_tt_handler(mvm); 270 271 out: 272 mutex_unlock(&mvm->mutex); 273 274 return count; 275 } 276 277 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 278 char __user *user_buf, 279 size_t count, loff_t *ppos) 280 { 281 struct iwl_mvm *mvm = file->private_data; 282 char buf[16]; 283 int pos, ret; 284 s32 temp; 285 286 if (!iwl_mvm_firmware_running(mvm)) 287 return -EIO; 288 289 mutex_lock(&mvm->mutex); 290 ret = iwl_mvm_get_temp(mvm, &temp); 291 mutex_unlock(&mvm->mutex); 292 293 if (ret) 294 return -EIO; 295 296 pos = scnprintf(buf, sizeof(buf), "%d\n", temp); 297 298 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 299 } 300 301 #ifdef CONFIG_ACPI 302 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 303 char __user *user_buf, 304 size_t count, loff_t *ppos) 305 { 306 struct iwl_mvm *mvm = file->private_data; 307 char buf[256]; 308 int pos = 0; 309 int bufsz = sizeof(buf); 310 int tbl_idx; 311 312 if (!iwl_mvm_firmware_running(mvm)) 313 return -EIO; 314 315 mutex_lock(&mvm->mutex); 316 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 317 if (tbl_idx < 0) { 318 mutex_unlock(&mvm->mutex); 319 return tbl_idx; 320 } 321 322 if (!tbl_idx) { 323 pos = scnprintf(buf, bufsz, 324 "SAR geographic profile disabled\n"); 325 } else { 326 pos += scnprintf(buf + pos, bufsz - pos, 327 "Use geographic profile %d\n", tbl_idx); 328 pos += scnprintf(buf + pos, bufsz - pos, 329 "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 330 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0], 331 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1], 332 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max); 333 pos += scnprintf(buf + pos, bufsz - pos, 334 "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 335 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0], 336 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1], 337 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max); 338 } 339 mutex_unlock(&mvm->mutex); 340 341 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 342 } 343 344 static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file, 345 char __user *user_buf, 346 size_t count, loff_t *ppos) 347 { 348 struct iwl_mvm *mvm = file->private_data; 349 int err, pos; 350 char buf[12]; 351 u32 value; 352 353 err = iwl_acpi_get_dsm_u32(mvm->fwrt.dev, 0, 354 DSM_FUNC_ENABLE_6E, 355 &iwl_guid, &value); 356 if (err) 357 return err; 358 359 pos = sprintf(buf, "0x%08x\n", value); 360 361 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 362 } 363 #endif 364 365 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 366 size_t count, loff_t *ppos) 367 { 368 struct iwl_mvm *mvm = file->private_data; 369 struct ieee80211_sta *sta; 370 char buf[400]; 371 int i, pos = 0, bufsz = sizeof(buf); 372 373 mutex_lock(&mvm->mutex); 374 375 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 376 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 377 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 378 lockdep_is_held(&mvm->mutex)); 379 if (!sta) 380 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 381 else if (IS_ERR(sta)) 382 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 383 PTR_ERR(sta)); 384 else 385 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 386 sta->addr); 387 } 388 389 mutex_unlock(&mvm->mutex); 390 391 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 392 } 393 394 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf, 395 size_t count, loff_t *ppos) 396 { 397 struct ieee80211_sta *sta = file->private_data; 398 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 399 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 400 struct iwl_mvm *mvm = lq_sta->pers.drv; 401 static const size_t bufsz = 2048; 402 char *buff; 403 int desc = 0; 404 ssize_t ret; 405 406 buff = kmalloc(bufsz, GFP_KERNEL); 407 if (!buff) 408 return -ENOMEM; 409 410 mutex_lock(&mvm->mutex); 411 412 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 413 lq_sta->pers.sta_id); 414 desc += scnprintf(buff + desc, bufsz - desc, 415 "fixed rate 0x%X\n", 416 lq_sta->pers.dbg_fixed_rate); 417 desc += scnprintf(buff + desc, bufsz - desc, 418 "A-MPDU size limit %d\n", 419 lq_sta->pers.dbg_agg_frame_count_lim); 420 desc += scnprintf(buff + desc, bufsz - desc, 421 "valid_tx_ant %s%s\n", 422 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 423 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : ""); 424 desc += scnprintf(buff + desc, bufsz - desc, 425 "last tx rate=0x%X ", 426 lq_sta->last_rate_n_flags); 427 428 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 429 lq_sta->last_rate_n_flags); 430 if (desc < bufsz - 1) 431 buff[desc++] = '\n'; 432 mutex_unlock(&mvm->mutex); 433 434 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 435 kfree(buff); 436 return ret; 437 } 438 439 static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta, 440 char *buf, size_t count, 441 loff_t *ppos) 442 { 443 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 444 int i; 445 u16 amsdu_len; 446 447 if (kstrtou16(buf, 0, &amsdu_len)) 448 return -EINVAL; 449 450 /* only change from debug set <-> debug unset */ 451 if (amsdu_len && mvmsta->orig_amsdu_len) 452 return -EBUSY; 453 454 if (amsdu_len) { 455 mvmsta->orig_amsdu_len = sta->cur->max_amsdu_len; 456 sta->deflink.agg.max_amsdu_len = amsdu_len; 457 sta->deflink.agg.max_amsdu_len = amsdu_len; 458 for (i = 0; i < ARRAY_SIZE(sta->deflink.agg.max_tid_amsdu_len); i++) 459 sta->deflink.agg.max_tid_amsdu_len[i] = amsdu_len; 460 } else { 461 sta->deflink.agg.max_amsdu_len = mvmsta->orig_amsdu_len; 462 mvmsta->orig_amsdu_len = 0; 463 } 464 465 return count; 466 } 467 468 static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file, 469 char __user *user_buf, 470 size_t count, loff_t *ppos) 471 { 472 struct ieee80211_sta *sta = file->private_data; 473 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 474 475 char buf[32]; 476 int pos; 477 478 pos = scnprintf(buf, sizeof(buf), "current %d ", sta->cur->max_amsdu_len); 479 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", 480 mvmsta->orig_amsdu_len); 481 482 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 483 } 484 485 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 486 char __user *user_buf, 487 size_t count, loff_t *ppos) 488 { 489 struct iwl_mvm *mvm = file->private_data; 490 char buf[64]; 491 int bufsz = sizeof(buf); 492 int pos = 0; 493 494 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 495 mvm->disable_power_off); 496 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 497 mvm->disable_power_off_d3); 498 499 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 500 } 501 502 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 503 size_t count, loff_t *ppos) 504 { 505 int ret, val; 506 507 if (!iwl_mvm_firmware_running(mvm)) 508 return -EIO; 509 510 if (!strncmp("disable_power_off_d0=", buf, 21)) { 511 if (sscanf(buf + 21, "%d", &val) != 1) 512 return -EINVAL; 513 mvm->disable_power_off = val; 514 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 515 if (sscanf(buf + 21, "%d", &val) != 1) 516 return -EINVAL; 517 mvm->disable_power_off_d3 = val; 518 } else { 519 return -EINVAL; 520 } 521 522 mutex_lock(&mvm->mutex); 523 ret = iwl_mvm_power_update_device(mvm); 524 mutex_unlock(&mvm->mutex); 525 526 return ret ?: count; 527 } 528 529 static 530 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 531 int pos, int bufsz) 532 { 533 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 534 535 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 536 BT_MBOX_PRINT(0, LE_PROF1, false); 537 BT_MBOX_PRINT(0, LE_PROF2, false); 538 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 539 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 540 BT_MBOX_PRINT(0, INBAND_S, false); 541 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 542 BT_MBOX_PRINT(0, LE_SCAN, false); 543 BT_MBOX_PRINT(0, LE_ADV, false); 544 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 545 BT_MBOX_PRINT(0, OPEN_CON_1, true); 546 547 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 548 549 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 550 BT_MBOX_PRINT(1, IP_SR, false); 551 BT_MBOX_PRINT(1, LE_MSTR, false); 552 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 553 BT_MBOX_PRINT(1, MSG_TYPE, false); 554 BT_MBOX_PRINT(1, SSN, true); 555 556 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 557 558 BT_MBOX_PRINT(2, SNIFF_ACT, false); 559 BT_MBOX_PRINT(2, PAG, false); 560 BT_MBOX_PRINT(2, INQUIRY, false); 561 BT_MBOX_PRINT(2, CONN, false); 562 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 563 BT_MBOX_PRINT(2, DISC, false); 564 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 565 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 566 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 567 BT_MBOX_PRINT(2, SCO_DURATION, true); 568 569 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 570 571 BT_MBOX_PRINT(3, SCO_STATE, false); 572 BT_MBOX_PRINT(3, SNIFF_STATE, false); 573 BT_MBOX_PRINT(3, A2DP_STATE, false); 574 BT_MBOX_PRINT(3, A2DP_SRC, false); 575 BT_MBOX_PRINT(3, ACL_STATE, false); 576 BT_MBOX_PRINT(3, MSTR_STATE, false); 577 BT_MBOX_PRINT(3, OBX_STATE, false); 578 BT_MBOX_PRINT(3, OPEN_CON_2, false); 579 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 580 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 581 BT_MBOX_PRINT(3, INBAND_P, false); 582 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 583 BT_MBOX_PRINT(3, SSN_2, false); 584 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 585 586 return pos; 587 } 588 589 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 590 size_t count, loff_t *ppos) 591 { 592 struct iwl_mvm *mvm = file->private_data; 593 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 594 char *buf; 595 int ret, pos = 0, bufsz = sizeof(char) * 1024; 596 597 buf = kmalloc(bufsz, GFP_KERNEL); 598 if (!buf) 599 return -ENOMEM; 600 601 mutex_lock(&mvm->mutex); 602 603 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 604 605 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 606 notif->bt_ci_compliance); 607 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 608 le32_to_cpu(notif->primary_ch_lut)); 609 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 610 le32_to_cpu(notif->secondary_ch_lut)); 611 pos += scnprintf(buf + pos, 612 bufsz - pos, "bt_activity_grading = %d\n", 613 le32_to_cpu(notif->bt_activity_grading)); 614 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 615 notif->rrc_status & 0xF); 616 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 617 notif->ttc_status & 0xF); 618 619 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 620 IWL_MVM_BT_COEX_SYNC2SCO); 621 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 622 IWL_MVM_BT_COEX_MPLUT); 623 624 mutex_unlock(&mvm->mutex); 625 626 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 627 kfree(buf); 628 629 return ret; 630 } 631 #undef BT_MBOX_PRINT 632 633 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 634 size_t count, loff_t *ppos) 635 { 636 struct iwl_mvm *mvm = file->private_data; 637 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 638 char buf[256]; 639 int bufsz = sizeof(buf); 640 int pos = 0; 641 642 mutex_lock(&mvm->mutex); 643 644 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 645 pos += scnprintf(buf + pos, bufsz - pos, 646 "\tPrimary Channel Bitmap 0x%016llx\n", 647 le64_to_cpu(cmd->bt_primary_ci)); 648 pos += scnprintf(buf + pos, bufsz - pos, 649 "\tSecondary Channel Bitmap 0x%016llx\n", 650 le64_to_cpu(cmd->bt_secondary_ci)); 651 652 mutex_unlock(&mvm->mutex); 653 654 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 655 } 656 657 static ssize_t 658 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 659 size_t count, loff_t *ppos) 660 { 661 u32 bt_tx_prio; 662 663 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 664 return -EINVAL; 665 if (bt_tx_prio > 4) 666 return -EINVAL; 667 668 mvm->bt_tx_prio = bt_tx_prio; 669 670 return count; 671 } 672 673 static ssize_t 674 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 675 size_t count, loff_t *ppos) 676 { 677 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 678 [BT_FORCE_ANT_DIS] = "dis", 679 [BT_FORCE_ANT_AUTO] = "auto", 680 [BT_FORCE_ANT_BT] = "bt", 681 [BT_FORCE_ANT_WIFI] = "wifi", 682 }; 683 int ret, bt_force_ant_mode; 684 685 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 686 if (ret < 0) 687 return ret; 688 689 bt_force_ant_mode = ret; 690 ret = 0; 691 mutex_lock(&mvm->mutex); 692 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 693 goto out; 694 695 mvm->bt_force_ant_mode = bt_force_ant_mode; 696 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 697 modes_str[mvm->bt_force_ant_mode]); 698 699 if (iwl_mvm_firmware_running(mvm)) 700 ret = iwl_mvm_send_bt_init_conf(mvm); 701 else 702 ret = 0; 703 704 out: 705 mutex_unlock(&mvm->mutex); 706 return ret ?: count; 707 } 708 709 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 710 size_t count, loff_t *ppos) 711 { 712 struct iwl_mvm *mvm = file->private_data; 713 char *buff, *pos, *endpos; 714 static const size_t bufsz = 1024; 715 int ret; 716 717 buff = kmalloc(bufsz, GFP_KERNEL); 718 if (!buff) 719 return -ENOMEM; 720 721 pos = buff; 722 endpos = pos + bufsz; 723 724 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 725 mvm->trans->cfg->fw_name_pre); 726 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 727 mvm->fwrt.fw->human_readable); 728 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 729 mvm->fwrt.trans->name); 730 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 731 mvm->fwrt.dev->bus->name); 732 733 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 734 kfree(buff); 735 736 return ret; 737 } 738 739 static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file, 740 char __user *user_buf, 741 size_t count, loff_t *ppos) 742 { 743 struct iwl_mvm *mvm = file->private_data; 744 struct iwl_mvm_tas_status_resp tas_rsp; 745 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp; 746 static const size_t bufsz = 1024; 747 char *buff, *pos, *endpos; 748 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = { 749 [TAS_DISABLED_DUE_TO_BIOS] = 750 "Due To BIOS", 751 [TAS_DISABLED_DUE_TO_SAR_6DBM] = 752 "Due To SAR Limit Less Than 6 dBm", 753 [TAS_DISABLED_REASON_INVALID] = 754 "N/A", 755 }; 756 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = { 757 [TAS_DYNA_INACTIVE] = "INACTIVE", 758 [TAS_DYNA_INACTIVE_MVM_MODE] = 759 "inactive due to mvm mode", 760 [TAS_DYNA_INACTIVE_TRIGGER_MODE] = 761 "inactive due to trigger mode", 762 [TAS_DYNA_INACTIVE_BLOCK_LISTED] = 763 "inactive due to block listed", 764 [TAS_DYNA_INACTIVE_UHB_NON_US] = 765 "inactive due to uhb non US", 766 [TAS_DYNA_ACTIVE] = "ACTIVE", 767 }; 768 struct iwl_host_cmd hcmd = { 769 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS), 770 .flags = CMD_WANT_SKB, 771 .len = { 0, }, 772 .data = { NULL, }, 773 }; 774 int ret, i, tmp; 775 bool tas_enabled = false; 776 unsigned long dyn_status; 777 778 if (!iwl_mvm_firmware_running(mvm)) 779 return -ENODEV; 780 781 mutex_lock(&mvm->mutex); 782 ret = iwl_mvm_send_cmd(mvm, &hcmd); 783 mutex_unlock(&mvm->mutex); 784 if (ret < 0) 785 return ret; 786 787 buff = kzalloc(bufsz, GFP_KERNEL); 788 if (!buff) 789 return -ENOMEM; 790 pos = buff; 791 endpos = pos + bufsz; 792 793 rsp = (void *)hcmd.resp_pkt->data; 794 795 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n"); 796 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 797 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID && 798 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) { 799 pos += scnprintf(pos, endpos - pos, "\tON for "); 800 switch (rsp->tas_status_mac[i].band) { 801 case TAS_LMAC_BAND_HB: 802 pos += scnprintf(pos, endpos - pos, "HB\n"); 803 break; 804 case TAS_LMAC_BAND_LB: 805 pos += scnprintf(pos, endpos - pos, "LB\n"); 806 break; 807 case TAS_LMAC_BAND_UHB: 808 pos += scnprintf(pos, endpos - pos, "UHB\n"); 809 break; 810 case TAS_LMAC_BAND_INVALID: 811 pos += scnprintf(pos, endpos - pos, 812 "INVALID BAND\n"); 813 break; 814 default: 815 pos += scnprintf(pos, endpos - pos, 816 "Unsupported band (%d)\n", 817 rsp->tas_status_mac[i].band); 818 goto out; 819 } 820 tas_enabled = true; 821 } 822 } 823 if (!tas_enabled) 824 pos += scnprintf(pos, endpos - pos, "\tOFF\n"); 825 826 pos += scnprintf(pos, endpos - pos, "TAS Report\n"); 827 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n", 828 rsp->tas_fw_version); 829 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n", 830 rsp->is_uhb_for_usa_enable ? "True" : "False"); 831 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n", 832 le16_to_cpu(rsp->curr_mcc)); 833 834 pos += scnprintf(pos, endpos - pos, "Block list entries:"); 835 for (i = 0; i < APCI_WTAS_BLACK_LIST_MAX; i++) 836 pos += scnprintf(pos, endpos - pos, " 0x%x", 837 le16_to_cpu(rsp->block_list[i])); 838 839 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n", 840 dmi_get_system_info(DMI_SYS_VENDOR)); 841 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n", 842 iwl_mvm_is_vendor_in_approved_list() ? "YES" : "NO"); 843 pos += scnprintf(pos, endpos - pos, 844 "\tDo TAS Support Dual Radio?: %s\n", 845 rsp->in_dual_radio ? "TRUE" : "FALSE"); 846 847 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 848 if (rsp->tas_status_mac[i].static_status == 0) { 849 pos += scnprintf(pos, endpos - pos, 850 "Static status: disabled\n"); 851 pos += scnprintf(pos, endpos - pos, 852 "Static disabled reason: %s (0)\n", 853 tas_dis_reason[0]); 854 goto out; 855 } 856 857 pos += scnprintf(pos, endpos - pos, "TAS status for "); 858 switch (rsp->tas_status_mac[i].band) { 859 case TAS_LMAC_BAND_HB: 860 pos += scnprintf(pos, endpos - pos, "High band\n"); 861 break; 862 case TAS_LMAC_BAND_LB: 863 pos += scnprintf(pos, endpos - pos, "Low band\n"); 864 break; 865 case TAS_LMAC_BAND_UHB: 866 pos += scnprintf(pos, endpos - pos, 867 "Ultra high band\n"); 868 break; 869 case TAS_LMAC_BAND_INVALID: 870 pos += scnprintf(pos, endpos - pos, 871 "INVALID band\n"); 872 break; 873 default: 874 pos += scnprintf(pos, endpos - pos, 875 "Unsupported band (%d)\n", 876 rsp->tas_status_mac[i].band); 877 goto out; 878 } 879 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n", 880 rsp->tas_status_mac[i].static_status ? 881 "En" : "Dis"); 882 pos += scnprintf(pos, endpos - pos, 883 "\tStatic Disabled Reason: "); 884 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX) 885 pos += scnprintf(pos, endpos - pos, "%s (%d)\n", 886 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason], 887 rsp->tas_status_mac[i].static_dis_reason); 888 else 889 pos += scnprintf(pos, endpos - pos, 890 "unsupported value (%d)\n", 891 rsp->tas_status_mac[i].static_dis_reason); 892 893 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n"); 894 dyn_status = (rsp->tas_status_mac[i].dynamic_status); 895 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) { 896 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX) 897 pos += scnprintf(pos, endpos - pos, 898 "\t%s (%d)\n", 899 tas_current_status[tmp], tmp); 900 } 901 902 pos += scnprintf(pos, endpos - pos, 903 "Is near disconnection?: %s\n", 904 rsp->tas_status_mac[i].near_disconnection ? 905 "True" : "False"); 906 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit); 907 pos += scnprintf(pos, endpos - pos, 908 "Max. regulatory pwr limit (dBm): %d.%03d\n", 909 tmp / 8, 125 * (tmp % 8)); 910 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit); 911 pos += scnprintf(pos, endpos - pos, 912 "SAR limit (dBm): %d.%03d\n", 913 tmp / 8, 125 * (tmp % 8)); 914 } 915 916 out: 917 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 918 kfree(buff); 919 iwl_free_resp(&hcmd); 920 return ret; 921 } 922 923 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 924 char __user *user_buf, 925 size_t count, loff_t *ppos) 926 { 927 struct iwl_mvm *mvm = file->private_data; 928 char *buf; 929 size_t bufsz; 930 int pos; 931 ssize_t ret; 932 933 bufsz = mvm->fw->phy_integration_ver_len + 2; 934 buf = kmalloc(bufsz, GFP_KERNEL); 935 if (!buf) 936 return -ENOMEM; 937 938 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 939 mvm->fw->phy_integration_ver); 940 941 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 942 943 kfree(buf); 944 return ret; 945 } 946 947 #define PRINT_STATS_LE32(_struct, _memb) \ 948 pos += scnprintf(buf + pos, bufsz - pos, \ 949 fmt_table, #_memb, \ 950 le32_to_cpu(_struct->_memb)) 951 952 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 953 char __user *user_buf, size_t count, 954 loff_t *ppos) 955 { 956 struct iwl_mvm *mvm = file->private_data; 957 static const char *fmt_table = "\t%-30s %10u\n"; 958 static const char *fmt_header = "%-32s\n"; 959 int pos = 0; 960 char *buf; 961 int ret; 962 size_t bufsz; 963 964 if (iwl_mvm_has_new_rx_stats_api(mvm)) 965 bufsz = ((sizeof(struct mvm_statistics_rx) / 966 sizeof(__le32)) * 43) + (4 * 33) + 1; 967 else 968 /* 43 = size of each data line; 33 = size of each header */ 969 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 970 sizeof(__le32)) * 43) + (4 * 33) + 1; 971 972 buf = kzalloc(bufsz, GFP_KERNEL); 973 if (!buf) 974 return -ENOMEM; 975 976 mutex_lock(&mvm->mutex); 977 978 if (iwl_mvm_firmware_running(mvm)) 979 iwl_mvm_request_statistics(mvm, false); 980 981 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 982 "Statistics_Rx - OFDM"); 983 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 984 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 985 986 PRINT_STATS_LE32(ofdm, ina_cnt); 987 PRINT_STATS_LE32(ofdm, fina_cnt); 988 PRINT_STATS_LE32(ofdm, plcp_err); 989 PRINT_STATS_LE32(ofdm, crc32_err); 990 PRINT_STATS_LE32(ofdm, overrun_err); 991 PRINT_STATS_LE32(ofdm, early_overrun_err); 992 PRINT_STATS_LE32(ofdm, crc32_good); 993 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 994 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 995 PRINT_STATS_LE32(ofdm, sfd_timeout); 996 PRINT_STATS_LE32(ofdm, fina_timeout); 997 PRINT_STATS_LE32(ofdm, unresponded_rts); 998 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 999 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 1000 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 1001 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1002 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1003 PRINT_STATS_LE32(ofdm, mh_format_err); 1004 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 1005 PRINT_STATS_LE32(ofdm, reserved); 1006 } else { 1007 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 1008 1009 PRINT_STATS_LE32(ofdm, unresponded_rts); 1010 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 1011 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1012 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1013 PRINT_STATS_LE32(ofdm, reserved); 1014 } 1015 1016 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1017 "Statistics_Rx - CCK"); 1018 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1019 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 1020 1021 PRINT_STATS_LE32(cck, ina_cnt); 1022 PRINT_STATS_LE32(cck, fina_cnt); 1023 PRINT_STATS_LE32(cck, plcp_err); 1024 PRINT_STATS_LE32(cck, crc32_err); 1025 PRINT_STATS_LE32(cck, overrun_err); 1026 PRINT_STATS_LE32(cck, early_overrun_err); 1027 PRINT_STATS_LE32(cck, crc32_good); 1028 PRINT_STATS_LE32(cck, false_alarm_cnt); 1029 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 1030 PRINT_STATS_LE32(cck, sfd_timeout); 1031 PRINT_STATS_LE32(cck, fina_timeout); 1032 PRINT_STATS_LE32(cck, unresponded_rts); 1033 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1034 PRINT_STATS_LE32(cck, sent_ack_cnt); 1035 PRINT_STATS_LE32(cck, sent_cts_cnt); 1036 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1037 PRINT_STATS_LE32(cck, dsp_self_kill); 1038 PRINT_STATS_LE32(cck, mh_format_err); 1039 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 1040 PRINT_STATS_LE32(cck, reserved); 1041 } else { 1042 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 1043 1044 PRINT_STATS_LE32(cck, unresponded_rts); 1045 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1046 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1047 PRINT_STATS_LE32(cck, dsp_self_kill); 1048 PRINT_STATS_LE32(cck, reserved); 1049 } 1050 1051 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1052 "Statistics_Rx - GENERAL"); 1053 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1054 struct mvm_statistics_rx_non_phy_v3 *general = 1055 &mvm->rx_stats_v3.general; 1056 1057 PRINT_STATS_LE32(general, bogus_cts); 1058 PRINT_STATS_LE32(general, bogus_ack); 1059 PRINT_STATS_LE32(general, non_bssid_frames); 1060 PRINT_STATS_LE32(general, filtered_frames); 1061 PRINT_STATS_LE32(general, non_channel_beacons); 1062 PRINT_STATS_LE32(general, channel_beacons); 1063 PRINT_STATS_LE32(general, num_missed_bcon); 1064 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1065 PRINT_STATS_LE32(general, ina_detection_search_time); 1066 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1067 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1068 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1069 PRINT_STATS_LE32(general, interference_data_flag); 1070 PRINT_STATS_LE32(general, channel_load); 1071 PRINT_STATS_LE32(general, dsp_false_alarms); 1072 PRINT_STATS_LE32(general, beacon_rssi_a); 1073 PRINT_STATS_LE32(general, beacon_rssi_b); 1074 PRINT_STATS_LE32(general, beacon_rssi_c); 1075 PRINT_STATS_LE32(general, beacon_energy_a); 1076 PRINT_STATS_LE32(general, beacon_energy_b); 1077 PRINT_STATS_LE32(general, beacon_energy_c); 1078 PRINT_STATS_LE32(general, num_bt_kills); 1079 PRINT_STATS_LE32(general, mac_id); 1080 PRINT_STATS_LE32(general, directed_data_mpdu); 1081 } else { 1082 struct mvm_statistics_rx_non_phy *general = 1083 &mvm->rx_stats.general; 1084 1085 PRINT_STATS_LE32(general, bogus_cts); 1086 PRINT_STATS_LE32(general, bogus_ack); 1087 PRINT_STATS_LE32(general, non_channel_beacons); 1088 PRINT_STATS_LE32(general, channel_beacons); 1089 PRINT_STATS_LE32(general, num_missed_bcon); 1090 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1091 PRINT_STATS_LE32(general, ina_detection_search_time); 1092 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1093 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1094 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1095 PRINT_STATS_LE32(general, interference_data_flag); 1096 PRINT_STATS_LE32(general, channel_load); 1097 PRINT_STATS_LE32(general, beacon_rssi_a); 1098 PRINT_STATS_LE32(general, beacon_rssi_b); 1099 PRINT_STATS_LE32(general, beacon_rssi_c); 1100 PRINT_STATS_LE32(general, beacon_energy_a); 1101 PRINT_STATS_LE32(general, beacon_energy_b); 1102 PRINT_STATS_LE32(general, beacon_energy_c); 1103 PRINT_STATS_LE32(general, num_bt_kills); 1104 PRINT_STATS_LE32(general, mac_id); 1105 } 1106 1107 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1108 "Statistics_Rx - HT"); 1109 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1110 struct mvm_statistics_rx_ht_phy_v1 *ht = 1111 &mvm->rx_stats_v3.ofdm_ht; 1112 1113 PRINT_STATS_LE32(ht, plcp_err); 1114 PRINT_STATS_LE32(ht, overrun_err); 1115 PRINT_STATS_LE32(ht, early_overrun_err); 1116 PRINT_STATS_LE32(ht, crc32_good); 1117 PRINT_STATS_LE32(ht, crc32_err); 1118 PRINT_STATS_LE32(ht, mh_format_err); 1119 PRINT_STATS_LE32(ht, agg_crc32_good); 1120 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1121 PRINT_STATS_LE32(ht, agg_cnt); 1122 PRINT_STATS_LE32(ht, unsupport_mcs); 1123 } else { 1124 struct mvm_statistics_rx_ht_phy *ht = 1125 &mvm->rx_stats.ofdm_ht; 1126 1127 PRINT_STATS_LE32(ht, mh_format_err); 1128 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1129 PRINT_STATS_LE32(ht, agg_cnt); 1130 PRINT_STATS_LE32(ht, unsupport_mcs); 1131 } 1132 1133 mutex_unlock(&mvm->mutex); 1134 1135 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1136 kfree(buf); 1137 1138 return ret; 1139 } 1140 #undef PRINT_STAT_LE32 1141 1142 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 1143 char __user *user_buf, size_t count, 1144 loff_t *ppos, 1145 struct iwl_mvm_frame_stats *stats) 1146 { 1147 char *buff, *pos, *endpos; 1148 int idx, i; 1149 int ret; 1150 static const size_t bufsz = 1024; 1151 1152 buff = kmalloc(bufsz, GFP_KERNEL); 1153 if (!buff) 1154 return -ENOMEM; 1155 1156 spin_lock_bh(&mvm->drv_stats_lock); 1157 1158 pos = buff; 1159 endpos = pos + bufsz; 1160 1161 pos += scnprintf(pos, endpos - pos, 1162 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 1163 stats->legacy_frames, 1164 stats->ht_frames, 1165 stats->vht_frames); 1166 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 1167 stats->bw_20_frames, 1168 stats->bw_40_frames, 1169 stats->bw_80_frames); 1170 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 1171 stats->ngi_frames, 1172 stats->sgi_frames); 1173 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 1174 stats->siso_frames, 1175 stats->mimo2_frames); 1176 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 1177 stats->fail_frames, 1178 stats->success_frames); 1179 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 1180 stats->agg_frames); 1181 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 1182 stats->ampdu_count); 1183 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 1184 stats->ampdu_count > 0 ? 1185 (stats->agg_frames / stats->ampdu_count) : 0); 1186 1187 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 1188 1189 idx = stats->last_frame_idx - 1; 1190 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 1191 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 1192 if (stats->last_rates[idx] == 0) 1193 continue; 1194 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 1195 (int)(ARRAY_SIZE(stats->last_rates) - i)); 1196 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 1197 stats->last_rates[idx]); 1198 if (pos < endpos - 1) 1199 *pos++ = '\n'; 1200 } 1201 spin_unlock_bh(&mvm->drv_stats_lock); 1202 1203 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1204 kfree(buff); 1205 1206 return ret; 1207 } 1208 1209 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1210 char __user *user_buf, size_t count, 1211 loff_t *ppos) 1212 { 1213 struct iwl_mvm *mvm = file->private_data; 1214 1215 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1216 &mvm->drv_rx_stats); 1217 } 1218 1219 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1220 size_t count, loff_t *ppos) 1221 { 1222 int __maybe_unused ret; 1223 1224 if (!iwl_mvm_firmware_running(mvm)) 1225 return -EIO; 1226 1227 mutex_lock(&mvm->mutex); 1228 1229 /* allow one more restart that we're provoking here */ 1230 if (mvm->fw_restart >= 0) 1231 mvm->fw_restart++; 1232 1233 if (count == 6 && !strcmp(buf, "nolog\n")) { 1234 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1235 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1236 } 1237 1238 /* take the return value to make compiler happy - it will fail anyway */ 1239 ret = iwl_mvm_send_cmd_pdu(mvm, 1240 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1241 0, 0, NULL); 1242 1243 mutex_unlock(&mvm->mutex); 1244 1245 return count; 1246 } 1247 1248 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1249 size_t count, loff_t *ppos) 1250 { 1251 if (!iwl_mvm_firmware_running(mvm)) 1252 return -EIO; 1253 1254 if (count == 6 && !strcmp(buf, "nolog\n")) 1255 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1256 1257 iwl_force_nmi(mvm->trans); 1258 1259 return count; 1260 } 1261 1262 static ssize_t 1263 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1264 char __user *user_buf, 1265 size_t count, loff_t *ppos) 1266 { 1267 struct iwl_mvm *mvm = file->private_data; 1268 int pos = 0; 1269 char buf[32]; 1270 const size_t bufsz = sizeof(buf); 1271 1272 /* print which antennas were set for the scan command by the user */ 1273 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1274 if (mvm->scan_rx_ant & ANT_A) 1275 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1276 if (mvm->scan_rx_ant & ANT_B) 1277 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1278 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant); 1279 1280 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1281 } 1282 1283 static ssize_t 1284 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1285 size_t count, loff_t *ppos) 1286 { 1287 u8 scan_rx_ant; 1288 1289 if (!iwl_mvm_firmware_running(mvm)) 1290 return -EIO; 1291 1292 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1293 return -EINVAL; 1294 if (scan_rx_ant > ANT_ABC) 1295 return -EINVAL; 1296 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1297 return -EINVAL; 1298 1299 if (mvm->scan_rx_ant != scan_rx_ant) { 1300 mvm->scan_rx_ant = scan_rx_ant; 1301 if (fw_has_capa(&mvm->fw->ucode_capa, 1302 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1303 iwl_mvm_config_scan(mvm); 1304 } 1305 1306 return count; 1307 } 1308 1309 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1310 char *buf, size_t count, 1311 loff_t *ppos) 1312 { 1313 struct iwl_rss_config_cmd cmd = { 1314 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1315 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1316 IWL_RSS_HASH_TYPE_IPV4_UDP | 1317 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1318 IWL_RSS_HASH_TYPE_IPV6_TCP | 1319 IWL_RSS_HASH_TYPE_IPV6_UDP | 1320 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1321 }; 1322 int ret, i, num_repeats, nbytes = count / 2; 1323 1324 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1325 if (ret) 1326 return ret; 1327 1328 /* 1329 * The input is the redirection table, partial or full. 1330 * Repeat the pattern if needed. 1331 * For example, input of 01020F will be repeated 42 times, 1332 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1333 * queues 3 - 14). 1334 */ 1335 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1336 for (i = 1; i < num_repeats; i++) 1337 memcpy(&cmd.indirection_table[i * nbytes], 1338 cmd.indirection_table, nbytes); 1339 /* handle cut in the middle pattern for the last places */ 1340 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1341 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1342 1343 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1344 1345 mutex_lock(&mvm->mutex); 1346 if (iwl_mvm_firmware_running(mvm)) 1347 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1348 sizeof(cmd), &cmd); 1349 else 1350 ret = 0; 1351 mutex_unlock(&mvm->mutex); 1352 1353 return ret ?: count; 1354 } 1355 1356 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1357 char *buf, size_t count, 1358 loff_t *ppos) 1359 { 1360 struct iwl_op_mode *opmode = container_of((void *)mvm, 1361 struct iwl_op_mode, 1362 op_mode_specific); 1363 struct iwl_rx_cmd_buffer rxb = { 1364 ._rx_page_order = 0, 1365 .truesize = 0, /* not used */ 1366 ._offset = 0, 1367 }; 1368 struct iwl_rx_packet *pkt; 1369 int bin_len = count / 2; 1370 int ret = -EINVAL; 1371 1372 if (!iwl_mvm_firmware_running(mvm)) 1373 return -EIO; 1374 1375 /* supporting only MQ RX */ 1376 if (!mvm->trans->trans_cfg->mq_rx_supported) 1377 return -ENOTSUPP; 1378 1379 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1380 if (!rxb._page) 1381 return -ENOMEM; 1382 pkt = rxb_addr(&rxb); 1383 1384 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1385 if (ret) 1386 goto out; 1387 1388 /* avoid invalid memory access and malformed packet */ 1389 if (bin_len < sizeof(*pkt) || 1390 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1391 goto out; 1392 1393 local_bh_disable(); 1394 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1395 local_bh_enable(); 1396 ret = 0; 1397 1398 out: 1399 iwl_free_rxb(&rxb); 1400 1401 return ret ?: count; 1402 } 1403 1404 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1405 { 1406 struct ieee80211_vif *vif; 1407 struct iwl_mvm_vif *mvmvif; 1408 struct sk_buff *beacon; 1409 struct ieee80211_tx_info *info; 1410 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1411 unsigned int link_id; 1412 u8 rate; 1413 int i; 1414 1415 len /= 2; 1416 1417 /* Element len should be represented by u8 */ 1418 if (len >= U8_MAX) 1419 return -EINVAL; 1420 1421 if (!iwl_mvm_firmware_running(mvm)) 1422 return -EIO; 1423 1424 if (!iwl_mvm_has_new_tx_api(mvm) && 1425 !fw_has_api(&mvm->fw->ucode_capa, 1426 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1427 return -EINVAL; 1428 1429 mutex_lock(&mvm->mutex); 1430 1431 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1432 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1433 if (!vif) 1434 continue; 1435 1436 if (vif->type == NL80211_IFTYPE_AP) 1437 break; 1438 } 1439 1440 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1441 goto out_err; 1442 1443 mvm->hw->extra_beacon_tailroom = len; 1444 1445 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); 1446 if (!beacon) 1447 goto out_err; 1448 1449 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1450 dev_kfree_skb(beacon); 1451 goto out_err; 1452 } 1453 1454 mvm->beacon_inject_active = true; 1455 1456 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1457 info = IEEE80211_SKB_CB(beacon); 1458 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); 1459 1460 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1461 beacon_cmd.flags = 1462 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, 1463 rate)); 1464 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1465 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12) 1466 beacon_cmd.link_id = 1467 cpu_to_le32(mvmvif->link[link_id]->fw_link_id); 1468 else 1469 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id); 1470 1471 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1472 &beacon_cmd.tim_size, 1473 beacon->data, beacon->len); 1474 1475 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1476 sizeof(beacon_cmd)); 1477 } 1478 mutex_unlock(&mvm->mutex); 1479 1480 dev_kfree_skb(beacon); 1481 1482 return 0; 1483 1484 out_err: 1485 mutex_unlock(&mvm->mutex); 1486 return -EINVAL; 1487 } 1488 1489 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1490 char *buf, size_t count, 1491 loff_t *ppos) 1492 { 1493 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1494 1495 mvm->hw->extra_beacon_tailroom = 0; 1496 return ret ?: count; 1497 } 1498 1499 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1500 char *buf, 1501 size_t count, 1502 loff_t *ppos) 1503 { 1504 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1505 1506 mvm->hw->extra_beacon_tailroom = 0; 1507 mvm->beacon_inject_active = false; 1508 return ret ?: count; 1509 } 1510 1511 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1512 char __user *user_buf, 1513 size_t count, loff_t *ppos) 1514 { 1515 struct iwl_mvm *mvm = file->private_data; 1516 int conf; 1517 char buf[8]; 1518 const size_t bufsz = sizeof(buf); 1519 int pos = 0; 1520 1521 mutex_lock(&mvm->mutex); 1522 conf = mvm->fwrt.dump.conf; 1523 mutex_unlock(&mvm->mutex); 1524 1525 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1526 1527 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1528 } 1529 1530 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1531 char *buf, size_t count, 1532 loff_t *ppos) 1533 { 1534 unsigned int conf_id; 1535 int ret; 1536 1537 if (!iwl_mvm_firmware_running(mvm)) 1538 return -EIO; 1539 1540 ret = kstrtouint(buf, 0, &conf_id); 1541 if (ret) 1542 return ret; 1543 1544 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1545 return -EINVAL; 1546 1547 mutex_lock(&mvm->mutex); 1548 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1549 mutex_unlock(&mvm->mutex); 1550 1551 return ret ?: count; 1552 } 1553 1554 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1555 char *buf, size_t count, 1556 loff_t *ppos) 1557 { 1558 if (count == 0) 1559 return 0; 1560 1561 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1562 NULL); 1563 1564 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1565 (count - 1), NULL); 1566 1567 return count; 1568 } 1569 1570 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1571 char *buf, size_t count, 1572 loff_t *ppos) 1573 { 1574 u32 timepoint; 1575 1576 if (kstrtou32(buf, 0, &timepoint)) 1577 return -EINVAL; 1578 1579 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1580 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1581 return -EINVAL; 1582 1583 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1584 1585 return count; 1586 } 1587 1588 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1589 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1590 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1591 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1592 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1593 debugfs_create_file(alias, mode, parent, mvm, \ 1594 &iwl_dbgfs_##name##_ops); \ 1595 } while (0) 1596 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1597 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1598 1599 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1600 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1601 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1602 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1603 1604 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1605 debugfs_create_file(alias, mode, parent, sta, \ 1606 &iwl_dbgfs_##name##_ops); \ 1607 } while (0) 1608 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1609 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1610 1611 static ssize_t 1612 iwl_dbgfs_prph_reg_read(struct file *file, 1613 char __user *user_buf, 1614 size_t count, loff_t *ppos) 1615 { 1616 struct iwl_mvm *mvm = file->private_data; 1617 int pos = 0; 1618 char buf[32]; 1619 const size_t bufsz = sizeof(buf); 1620 1621 if (!mvm->dbgfs_prph_reg_addr) 1622 return -EINVAL; 1623 1624 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1625 mvm->dbgfs_prph_reg_addr, 1626 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1627 1628 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1629 } 1630 1631 static ssize_t 1632 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1633 size_t count, loff_t *ppos) 1634 { 1635 u8 args; 1636 u32 value; 1637 1638 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1639 /* if we only want to set the reg address - nothing more to do */ 1640 if (args == 1) 1641 goto out; 1642 1643 /* otherwise, make sure we have both address and value */ 1644 if (args != 2) 1645 return -EINVAL; 1646 1647 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1648 1649 out: 1650 return count; 1651 } 1652 1653 static ssize_t 1654 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1655 size_t count, loff_t *ppos) 1656 { 1657 int ret; 1658 1659 if (!iwl_mvm_firmware_running(mvm)) 1660 return -EIO; 1661 1662 mutex_lock(&mvm->mutex); 1663 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1664 mutex_unlock(&mvm->mutex); 1665 1666 return ret ?: count; 1667 } 1668 1669 struct iwl_mvm_sniffer_apply { 1670 struct iwl_mvm *mvm; 1671 u8 *bssid; 1672 u16 aid; 1673 }; 1674 1675 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1676 struct iwl_rx_packet *pkt, void *data) 1677 { 1678 struct iwl_mvm_sniffer_apply *apply = data; 1679 1680 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1681 memcpy(apply->mvm->cur_bssid, apply->bssid, 1682 sizeof(apply->mvm->cur_bssid)); 1683 1684 return true; 1685 } 1686 1687 static ssize_t 1688 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1689 size_t count, loff_t *ppos) 1690 { 1691 struct iwl_notification_wait wait; 1692 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1693 struct iwl_mvm_sniffer_apply apply = { 1694 .mvm = mvm, 1695 }; 1696 u16 wait_cmds[] = { 1697 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1698 }; 1699 u32 aid; 1700 int ret; 1701 1702 if (!iwl_mvm_firmware_running(mvm)) 1703 return -EIO; 1704 1705 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1706 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1707 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1708 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1709 if (ret != 7) 1710 return -EINVAL; 1711 1712 he_mon_cmd.aid = cpu_to_le16(aid); 1713 1714 apply.aid = aid; 1715 apply.bssid = (void *)he_mon_cmd.bssid; 1716 1717 mutex_lock(&mvm->mutex); 1718 1719 /* 1720 * Use the notification waiter to get our function triggered 1721 * in sequence with other RX. This ensures that frames we get 1722 * on the RX queue _before_ the new configuration is applied 1723 * still have mvm->cur_aid pointing to the old AID, and that 1724 * frames on the RX queue _after_ the firmware processed the 1725 * new configuration (and sent the response, synchronously) 1726 * get mvm->cur_aid correctly set to the new AID. 1727 */ 1728 iwl_init_notification_wait(&mvm->notif_wait, &wait, 1729 wait_cmds, ARRAY_SIZE(wait_cmds), 1730 iwl_mvm_sniffer_apply, &apply); 1731 1732 ret = iwl_mvm_send_cmd_pdu(mvm, 1733 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1734 0, 1735 sizeof(he_mon_cmd), &he_mon_cmd); 1736 1737 /* no need to really wait, we already did anyway */ 1738 iwl_remove_notification(&mvm->notif_wait, &wait); 1739 1740 mutex_unlock(&mvm->mutex); 1741 1742 return ret ?: count; 1743 } 1744 1745 static ssize_t 1746 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 1747 size_t count, loff_t *ppos) 1748 { 1749 struct iwl_mvm *mvm = file->private_data; 1750 u8 buf[32]; 1751 int len; 1752 1753 len = scnprintf(buf, sizeof(buf), 1754 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 1755 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 1756 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 1757 mvm->cur_bssid[4], mvm->cur_bssid[5]); 1758 1759 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1760 } 1761 1762 static ssize_t 1763 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1764 size_t count, loff_t *ppos) 1765 { 1766 struct iwl_mvm *mvm = file->private_data; 1767 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1768 unsigned int pos = 0; 1769 size_t bufsz = sizeof(buf); 1770 int i; 1771 1772 mutex_lock(&mvm->mutex); 1773 1774 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1775 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1776 mvm->uapsd_noagg_bssids[i].addr); 1777 1778 mutex_unlock(&mvm->mutex); 1779 1780 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1781 } 1782 1783 static ssize_t 1784 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 1785 char *buf, size_t count, loff_t *ppos) 1786 { 1787 int ret; 1788 struct iwl_ltr_config_cmd ltr_config = {0}; 1789 1790 if (!iwl_mvm_firmware_running(mvm)) 1791 return -EIO; 1792 1793 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 1794 <r_config.flags, 1795 <r_config.static_long, 1796 <r_config.static_short, 1797 <r_config.ltr_cfg_values[0], 1798 <r_config.ltr_cfg_values[1], 1799 <r_config.ltr_cfg_values[2], 1800 <r_config.ltr_cfg_values[3]) != 7) { 1801 return -EINVAL; 1802 } 1803 1804 mutex_lock(&mvm->mutex); 1805 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 1806 <r_config); 1807 mutex_unlock(&mvm->mutex); 1808 1809 if (ret) 1810 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 1811 1812 return ret ?: count; 1813 } 1814 1815 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 1816 size_t count, loff_t *ppos) 1817 { 1818 int ret = 0; 1819 u16 op_id; 1820 1821 if (kstrtou16(buf, 10, &op_id)) 1822 return -EINVAL; 1823 1824 /* value zero triggers re-sending the default table to the device */ 1825 if (!op_id) { 1826 mutex_lock(&mvm->mutex); 1827 ret = iwl_rfi_send_config_cmd(mvm, NULL); 1828 mutex_unlock(&mvm->mutex); 1829 } else { 1830 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 1831 } 1832 1833 return ret ?: count; 1834 } 1835 1836 /* The size computation is as follows: 1837 * each number needs at most 3 characters, number of rows is the size of 1838 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 1839 * needs 6 characters for numbers and 5 for the punctuation around. 1840 */ 1841 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 1842 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 1843 1844 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 1845 char __user *user_buf, 1846 size_t count, loff_t *ppos) 1847 { 1848 struct iwl_mvm *mvm = file->private_data; 1849 struct iwl_rfi_freq_table_resp_cmd *resp; 1850 u32 status; 1851 char buf[IWL_RFI_BUF_SIZE]; 1852 int i, j, pos = 0; 1853 1854 resp = iwl_rfi_get_freq_table(mvm); 1855 if (IS_ERR(resp)) 1856 return PTR_ERR(resp); 1857 1858 status = le32_to_cpu(resp->status); 1859 if (status != RFI_FREQ_TABLE_OK) { 1860 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 1861 goto out; 1862 } 1863 1864 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 1865 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 1866 resp->table[i].freq); 1867 1868 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 1869 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 1870 "(%d, %d) ", 1871 resp->table[i].channels[j], 1872 resp->table[i].bands[j]); 1873 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 1874 } 1875 1876 out: 1877 kfree(resp); 1878 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1879 } 1880 1881 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1882 1883 /* Device wide debugfs entries */ 1884 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1885 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1886 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1887 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1888 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1889 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1890 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1891 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1892 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1893 MVM_DEBUGFS_READ_FILE_OPS(stations); 1894 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1895 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1896 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1897 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1898 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1899 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1900 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1901 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 1902 MVM_DEBUGFS_READ_FILE_OPS(tas_get_status); 1903 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1904 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1905 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1906 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1907 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1908 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1909 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1910 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 1911 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1912 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1913 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1914 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 1915 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 1916 1917 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1918 1919 #ifdef CONFIG_ACPI 1920 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1921 MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable); 1922 #endif 1923 1924 MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16); 1925 1926 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 1927 1928 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 1929 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 1930 1931 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1932 size_t count, loff_t *ppos) 1933 { 1934 struct iwl_mvm *mvm = file->private_data; 1935 struct iwl_dbg_mem_access_cmd cmd = {}; 1936 struct iwl_dbg_mem_access_rsp *rsp; 1937 struct iwl_host_cmd hcmd = { 1938 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1939 .data = { &cmd, }, 1940 .len = { sizeof(cmd) }, 1941 }; 1942 size_t delta; 1943 ssize_t ret, len; 1944 1945 if (!iwl_mvm_firmware_running(mvm)) 1946 return -EIO; 1947 1948 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1949 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1950 1951 /* Take care of alignment of both the position and the length */ 1952 delta = *ppos & 0x3; 1953 cmd.addr = cpu_to_le32(*ppos - delta); 1954 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1955 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1956 1957 mutex_lock(&mvm->mutex); 1958 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1959 mutex_unlock(&mvm->mutex); 1960 1961 if (ret < 0) 1962 return ret; 1963 1964 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 1965 ret = -EIO; 1966 goto out; 1967 } 1968 1969 rsp = (void *)hcmd.resp_pkt->data; 1970 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1971 ret = -ENXIO; 1972 goto out; 1973 } 1974 1975 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1976 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1977 len = min(len - delta, count); 1978 if (len < 0) { 1979 ret = -EFAULT; 1980 goto out; 1981 } 1982 1983 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 1984 *ppos += ret; 1985 1986 out: 1987 iwl_free_resp(&hcmd); 1988 return ret; 1989 } 1990 1991 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1992 const char __user *user_buf, size_t count, 1993 loff_t *ppos) 1994 { 1995 struct iwl_mvm *mvm = file->private_data; 1996 struct iwl_dbg_mem_access_cmd *cmd; 1997 struct iwl_dbg_mem_access_rsp *rsp; 1998 struct iwl_host_cmd hcmd = {}; 1999 size_t cmd_size; 2000 size_t data_size; 2001 u32 op, len; 2002 ssize_t ret; 2003 2004 if (!iwl_mvm_firmware_running(mvm)) 2005 return -EIO; 2006 2007 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 2008 2009 if (*ppos & 0x3 || count < 4) { 2010 op = DEBUG_MEM_OP_WRITE_BYTES; 2011 len = min(count, (size_t)(4 - (*ppos & 0x3))); 2012 data_size = len; 2013 } else { 2014 op = DEBUG_MEM_OP_WRITE; 2015 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 2016 data_size = len << 2; 2017 } 2018 2019 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 2020 cmd = kzalloc(cmd_size, GFP_KERNEL); 2021 if (!cmd) 2022 return -ENOMEM; 2023 2024 cmd->op = cpu_to_le32(op); 2025 cmd->len = cpu_to_le32(len); 2026 cmd->addr = cpu_to_le32(*ppos); 2027 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 2028 kfree(cmd); 2029 return -EFAULT; 2030 } 2031 2032 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 2033 hcmd.data[0] = (void *)cmd; 2034 hcmd.len[0] = cmd_size; 2035 2036 mutex_lock(&mvm->mutex); 2037 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2038 mutex_unlock(&mvm->mutex); 2039 2040 kfree(cmd); 2041 2042 if (ret < 0) 2043 return ret; 2044 2045 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 2046 ret = -EIO; 2047 goto out; 2048 } 2049 2050 rsp = (void *)hcmd.resp_pkt->data; 2051 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 2052 ret = -ENXIO; 2053 goto out; 2054 } 2055 2056 ret = data_size; 2057 *ppos += ret; 2058 2059 out: 2060 iwl_free_resp(&hcmd); 2061 return ret; 2062 } 2063 2064 static const struct file_operations iwl_dbgfs_mem_ops = { 2065 .read = iwl_dbgfs_mem_read, 2066 .write = iwl_dbgfs_mem_write, 2067 .open = simple_open, 2068 .llseek = default_llseek, 2069 }; 2070 2071 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 2072 struct ieee80211_vif *vif, 2073 struct ieee80211_sta *sta, 2074 struct dentry *dir) 2075 { 2076 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2077 2078 if (iwl_mvm_has_tlc_offload(mvm)) { 2079 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 2080 } 2081 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600); 2082 } 2083 2084 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 2085 { 2086 struct dentry *bcast_dir __maybe_unused; 2087 2088 spin_lock_init(&mvm->drv_stats_lock); 2089 2090 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 2091 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 2092 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 2093 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 2094 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 2095 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 2096 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 2097 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 2098 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 2099 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 2100 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 2101 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 2102 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 2103 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 2104 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 2105 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 2106 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 2107 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 2108 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 2109 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 2110 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 2111 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 2112 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 2113 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 2114 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 2115 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 2116 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 2117 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 2118 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 2119 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 2120 2121 if (mvm->fw->phy_integration_ver) 2122 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 2123 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400); 2124 #ifdef CONFIG_ACPI 2125 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 2126 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400); 2127 #endif 2128 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 2129 2130 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 2131 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 2132 2133 debugfs_create_bool("enable_scan_iteration_notif", 0600, 2134 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 2135 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 2136 &mvm->drop_bcn_ap_mode); 2137 2138 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2139 2140 #ifdef CONFIG_PM_SLEEP 2141 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2142 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 2143 &mvm->d3_wake_sysassert); 2144 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 2145 &mvm->last_netdetect_scans); 2146 #endif 2147 2148 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 2149 &mvm->ps_disabled); 2150 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 2151 &mvm->nvm_hw_blob); 2152 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 2153 &mvm->nvm_sw_blob); 2154 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 2155 &mvm->nvm_calib_blob); 2156 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 2157 &mvm->nvm_prod_blob); 2158 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 2159 &mvm->nvm_phy_sku_blob); 2160 debugfs_create_blob("nvm_reg", S_IRUSR, 2161 mvm->debugfs_dir, &mvm->nvm_reg_blob); 2162 2163 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 2164 &iwl_dbgfs_mem_ops); 2165 2166 /* 2167 * Create a symlink with mac80211. It will be removed when mac80211 2168 * exists (before the opmode exists which removes the target.) 2169 */ 2170 if (!IS_ERR(mvm->debugfs_dir)) { 2171 char buf[100]; 2172 2173 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 2174 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, 2175 buf); 2176 } 2177 } 2178