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 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 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 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 } 107 108 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 } 119 120 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 } 153 154 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 155 size_t count, loff_t *ppos) 156 { 157 struct iwl_mvm_sta *mvmsta; 158 int sta_id, drain, ret; 159 160 if (!iwl_mvm_firmware_running(mvm) || 161 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 162 return -EIO; 163 164 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 165 return -EINVAL; 166 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations) 167 return -EINVAL; 168 if (drain < 0 || drain > 1) 169 return -EINVAL; 170 171 mutex_lock(&mvm->mutex); 172 173 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 174 175 if (!mvmsta) 176 ret = -ENOENT; 177 else 178 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 179 180 mutex_unlock(&mvm->mutex); 181 182 return ret; 183 } 184 185 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 186 size_t count, loff_t *ppos) 187 { 188 struct iwl_mvm *mvm = file->private_data; 189 const struct fw_img *img; 190 unsigned int ofs, len; 191 size_t ret; 192 u8 *ptr; 193 194 if (!iwl_mvm_firmware_running(mvm)) 195 return -EINVAL; 196 197 /* default is to dump the entire data segment */ 198 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 199 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 200 len = img->sec[IWL_UCODE_SECTION_DATA].len; 201 202 if (mvm->dbgfs_sram_len) { 203 ofs = mvm->dbgfs_sram_offset; 204 len = mvm->dbgfs_sram_len; 205 } 206 207 ptr = kzalloc(len, GFP_KERNEL); 208 if (!ptr) 209 return -ENOMEM; 210 211 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 212 213 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 214 215 kfree(ptr); 216 217 return ret; 218 } 219 220 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 221 size_t count, loff_t *ppos) 222 { 223 const struct fw_img *img; 224 u32 offset, len; 225 u32 img_offset, img_len; 226 227 if (!iwl_mvm_firmware_running(mvm)) 228 return -EINVAL; 229 230 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 231 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 232 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 233 234 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 235 if ((offset & 0x3) || (len & 0x3)) 236 return -EINVAL; 237 238 if (offset + len > img_offset + img_len) 239 return -EINVAL; 240 241 mvm->dbgfs_sram_offset = offset; 242 mvm->dbgfs_sram_len = len; 243 } else { 244 mvm->dbgfs_sram_offset = 0; 245 mvm->dbgfs_sram_len = 0; 246 } 247 248 return count; 249 } 250 251 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 252 char __user *user_buf, 253 size_t count, loff_t *ppos) 254 { 255 struct iwl_mvm *mvm = file->private_data; 256 char buf[16]; 257 int pos; 258 259 if (!mvm->temperature_test) 260 pos = scnprintf(buf, sizeof(buf), "disabled\n"); 261 else 262 pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature); 263 264 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 265 } 266 267 /* 268 * Set NIC Temperature 269 * Cause the driver to ignore the actual NIC temperature reported by the FW 270 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 271 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 272 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 273 */ 274 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 275 char *buf, size_t count, 276 loff_t *ppos) 277 { 278 int temperature; 279 280 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 281 return -EIO; 282 283 if (kstrtoint(buf, 10, &temperature)) 284 return -EINVAL; 285 /* not a legal temperature */ 286 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 287 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 288 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 289 return -EINVAL; 290 291 mutex_lock(&mvm->mutex); 292 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 293 if (!mvm->temperature_test) 294 goto out; 295 296 mvm->temperature_test = false; 297 /* Since we can't read the temp while awake, just set 298 * it to zero until we get the next RX stats from the 299 * firmware. 300 */ 301 mvm->temperature = 0; 302 } else { 303 mvm->temperature_test = true; 304 mvm->temperature = temperature; 305 } 306 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 307 mvm->temperature_test ? "En" : "Dis", 308 mvm->temperature); 309 /* handle the temperature change */ 310 iwl_mvm_tt_handler(mvm); 311 312 out: 313 mutex_unlock(&mvm->mutex); 314 315 return count; 316 } 317 318 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 319 char __user *user_buf, 320 size_t count, loff_t *ppos) 321 { 322 struct iwl_mvm *mvm = file->private_data; 323 char buf[16]; 324 int pos, ret; 325 s32 temp; 326 327 if (!iwl_mvm_firmware_running(mvm)) 328 return -EIO; 329 330 mutex_lock(&mvm->mutex); 331 ret = iwl_mvm_get_temp(mvm, &temp); 332 mutex_unlock(&mvm->mutex); 333 334 if (ret) 335 return -EIO; 336 337 pos = scnprintf(buf, sizeof(buf), "%d\n", temp); 338 339 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 340 } 341 342 #ifdef CONFIG_ACPI 343 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 344 char __user *user_buf, 345 size_t count, loff_t *ppos) 346 { 347 struct iwl_mvm *mvm = file->private_data; 348 char buf[256]; 349 int pos = 0; 350 int bufsz = sizeof(buf); 351 int tbl_idx; 352 353 if (!iwl_mvm_firmware_running(mvm)) 354 return -EIO; 355 356 mutex_lock(&mvm->mutex); 357 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 358 if (tbl_idx < 0) { 359 mutex_unlock(&mvm->mutex); 360 return tbl_idx; 361 } 362 363 if (!tbl_idx) { 364 pos = scnprintf(buf, bufsz, 365 "SAR geographic profile disabled\n"); 366 } else { 367 pos += scnprintf(buf + pos, bufsz - pos, 368 "Use geographic profile %d\n", tbl_idx); 369 pos += scnprintf(buf + pos, bufsz - pos, 370 "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 371 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0], 372 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1], 373 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max); 374 pos += scnprintf(buf + pos, bufsz - pos, 375 "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 376 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0], 377 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1], 378 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max); 379 } 380 mutex_unlock(&mvm->mutex); 381 382 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 383 } 384 385 static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file, 386 char __user *user_buf, 387 size_t count, loff_t *ppos) 388 { 389 struct iwl_mvm *mvm = file->private_data; 390 int err, pos; 391 char buf[12]; 392 u32 value; 393 394 err = iwl_acpi_get_dsm_u32(mvm->fwrt.dev, 0, 395 DSM_FUNC_ENABLE_6E, 396 &iwl_guid, &value); 397 if (err) 398 return err; 399 400 pos = sprintf(buf, "0x%08x\n", value); 401 402 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 403 } 404 #endif 405 406 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 407 size_t count, loff_t *ppos) 408 { 409 struct iwl_mvm *mvm = file->private_data; 410 struct ieee80211_sta *sta; 411 char buf[400]; 412 int i, pos = 0, bufsz = sizeof(buf); 413 414 mutex_lock(&mvm->mutex); 415 416 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 417 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 418 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 419 lockdep_is_held(&mvm->mutex)); 420 if (!sta) 421 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 422 else if (IS_ERR(sta)) 423 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 424 PTR_ERR(sta)); 425 else 426 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 427 sta->addr); 428 } 429 430 mutex_unlock(&mvm->mutex); 431 432 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 433 } 434 435 static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta, 436 struct iwl_mvm_sta *mvmsta, 437 struct iwl_mvm *mvm, 438 struct iwl_mvm_link_sta *mvm_link_sta, 439 char __user *user_buf, 440 size_t count, loff_t *ppos) 441 { 442 struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw; 443 static const size_t bufsz = 2048; 444 char *buff; 445 int desc = 0; 446 ssize_t ret; 447 448 buff = kmalloc(bufsz, GFP_KERNEL); 449 if (!buff) 450 return -ENOMEM; 451 452 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 453 lq_sta->pers.sta_id); 454 desc += scnprintf(buff + desc, bufsz - desc, 455 "fixed rate 0x%X\n", 456 lq_sta->pers.dbg_fixed_rate); 457 desc += scnprintf(buff + desc, bufsz - desc, 458 "A-MPDU size limit %d\n", 459 lq_sta->pers.dbg_agg_frame_count_lim); 460 desc += scnprintf(buff + desc, bufsz - desc, 461 "valid_tx_ant %s%s\n", 462 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 463 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : ""); 464 desc += scnprintf(buff + desc, bufsz - desc, 465 "last tx rate=0x%X ", 466 lq_sta->last_rate_n_flags); 467 468 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 469 lq_sta->last_rate_n_flags); 470 if (desc < bufsz - 1) 471 buff[desc++] = '\n'; 472 473 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 474 kfree(buff); 475 return ret; 476 } 477 478 static ssize_t iwl_dbgfs_amsdu_len_write(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 *buf, size_t count, 483 loff_t *ppos) 484 { 485 int i; 486 u16 amsdu_len; 487 488 if (kstrtou16(buf, 0, &amsdu_len)) 489 return -EINVAL; 490 491 /* only change from debug set <-> debug unset */ 492 if (amsdu_len && mvm_link_sta->orig_amsdu_len) 493 return -EBUSY; 494 495 if (amsdu_len) { 496 mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len; 497 link_sta->agg.max_amsdu_len = amsdu_len; 498 link_sta->agg.max_amsdu_len = amsdu_len; 499 for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++) 500 link_sta->agg.max_tid_amsdu_len[i] = amsdu_len; 501 } else { 502 link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len; 503 mvm_link_sta->orig_amsdu_len = 0; 504 } 505 506 ieee80211_sta_recalc_aggregates(link_sta->sta); 507 508 return count; 509 } 510 511 static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta, 512 struct iwl_mvm_sta *mvmsta, 513 struct iwl_mvm *mvm, 514 struct iwl_mvm_link_sta *mvm_link_sta, 515 char __user *user_buf, 516 size_t count, loff_t *ppos) 517 { 518 char buf[32]; 519 int pos; 520 521 pos = scnprintf(buf, sizeof(buf), "current %d ", 522 link_sta->agg.max_amsdu_len); 523 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", 524 mvm_link_sta->orig_amsdu_len); 525 526 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 527 } 528 529 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 530 char __user *user_buf, 531 size_t count, loff_t *ppos) 532 { 533 struct iwl_mvm *mvm = file->private_data; 534 char buf[64]; 535 int bufsz = sizeof(buf); 536 int pos = 0; 537 538 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 539 mvm->disable_power_off); 540 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 541 mvm->disable_power_off_d3); 542 543 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 544 } 545 546 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 547 size_t count, loff_t *ppos) 548 { 549 int ret, val; 550 551 if (!iwl_mvm_firmware_running(mvm)) 552 return -EIO; 553 554 if (!strncmp("disable_power_off_d0=", buf, 21)) { 555 if (sscanf(buf + 21, "%d", &val) != 1) 556 return -EINVAL; 557 mvm->disable_power_off = val; 558 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 559 if (sscanf(buf + 21, "%d", &val) != 1) 560 return -EINVAL; 561 mvm->disable_power_off_d3 = val; 562 } else { 563 return -EINVAL; 564 } 565 566 mutex_lock(&mvm->mutex); 567 ret = iwl_mvm_power_update_device(mvm); 568 mutex_unlock(&mvm->mutex); 569 570 return ret ?: count; 571 } 572 573 static 574 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 575 int pos, int bufsz) 576 { 577 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 578 579 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 580 BT_MBOX_PRINT(0, LE_PROF1, false); 581 BT_MBOX_PRINT(0, LE_PROF2, false); 582 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 583 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 584 BT_MBOX_PRINT(0, INBAND_S, false); 585 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 586 BT_MBOX_PRINT(0, LE_SCAN, false); 587 BT_MBOX_PRINT(0, LE_ADV, false); 588 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 589 BT_MBOX_PRINT(0, OPEN_CON_1, true); 590 591 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 592 593 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 594 BT_MBOX_PRINT(1, IP_SR, false); 595 BT_MBOX_PRINT(1, LE_MSTR, false); 596 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 597 BT_MBOX_PRINT(1, MSG_TYPE, false); 598 BT_MBOX_PRINT(1, SSN, true); 599 600 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 601 602 BT_MBOX_PRINT(2, SNIFF_ACT, false); 603 BT_MBOX_PRINT(2, PAG, false); 604 BT_MBOX_PRINT(2, INQUIRY, false); 605 BT_MBOX_PRINT(2, CONN, false); 606 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 607 BT_MBOX_PRINT(2, DISC, false); 608 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 609 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 610 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 611 BT_MBOX_PRINT(2, SCO_DURATION, true); 612 613 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 614 615 BT_MBOX_PRINT(3, SCO_STATE, false); 616 BT_MBOX_PRINT(3, SNIFF_STATE, false); 617 BT_MBOX_PRINT(3, A2DP_STATE, false); 618 BT_MBOX_PRINT(3, A2DP_SRC, false); 619 BT_MBOX_PRINT(3, ACL_STATE, false); 620 BT_MBOX_PRINT(3, MSTR_STATE, false); 621 BT_MBOX_PRINT(3, OBX_STATE, false); 622 BT_MBOX_PRINT(3, OPEN_CON_2, false); 623 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 624 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 625 BT_MBOX_PRINT(3, INBAND_P, false); 626 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 627 BT_MBOX_PRINT(3, SSN_2, false); 628 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 629 630 return pos; 631 } 632 633 static ssize_t iwl_dbgfs_bt_notif_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_profile_notif *notif = &mvm->last_bt_notif; 638 char *buf; 639 int ret, pos = 0, bufsz = sizeof(char) * 1024; 640 641 buf = kmalloc(bufsz, GFP_KERNEL); 642 if (!buf) 643 return -ENOMEM; 644 645 mutex_lock(&mvm->mutex); 646 647 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 648 649 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 650 notif->bt_ci_compliance); 651 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 652 le32_to_cpu(notif->primary_ch_lut)); 653 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 654 le32_to_cpu(notif->secondary_ch_lut)); 655 pos += scnprintf(buf + pos, 656 bufsz - pos, "bt_activity_grading = %d\n", 657 le32_to_cpu(notif->bt_activity_grading)); 658 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 659 notif->rrc_status & 0xF); 660 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 661 notif->ttc_status & 0xF); 662 663 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 664 IWL_MVM_BT_COEX_SYNC2SCO); 665 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 666 IWL_MVM_BT_COEX_MPLUT); 667 668 mutex_unlock(&mvm->mutex); 669 670 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 671 kfree(buf); 672 673 return ret; 674 } 675 #undef BT_MBOX_PRINT 676 677 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 678 size_t count, loff_t *ppos) 679 { 680 struct iwl_mvm *mvm = file->private_data; 681 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 682 char buf[256]; 683 int bufsz = sizeof(buf); 684 int pos = 0; 685 686 mutex_lock(&mvm->mutex); 687 688 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 689 pos += scnprintf(buf + pos, bufsz - pos, 690 "\tPrimary Channel Bitmap 0x%016llx\n", 691 le64_to_cpu(cmd->bt_primary_ci)); 692 pos += scnprintf(buf + pos, bufsz - pos, 693 "\tSecondary Channel Bitmap 0x%016llx\n", 694 le64_to_cpu(cmd->bt_secondary_ci)); 695 696 mutex_unlock(&mvm->mutex); 697 698 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 699 } 700 701 static ssize_t 702 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 703 size_t count, loff_t *ppos) 704 { 705 u32 bt_tx_prio; 706 707 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 708 return -EINVAL; 709 if (bt_tx_prio > 4) 710 return -EINVAL; 711 712 mvm->bt_tx_prio = bt_tx_prio; 713 714 return count; 715 } 716 717 static ssize_t 718 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 719 size_t count, loff_t *ppos) 720 { 721 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 722 [BT_FORCE_ANT_DIS] = "dis", 723 [BT_FORCE_ANT_AUTO] = "auto", 724 [BT_FORCE_ANT_BT] = "bt", 725 [BT_FORCE_ANT_WIFI] = "wifi", 726 }; 727 int ret, bt_force_ant_mode; 728 729 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 730 if (ret < 0) 731 return ret; 732 733 bt_force_ant_mode = ret; 734 ret = 0; 735 mutex_lock(&mvm->mutex); 736 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 737 goto out; 738 739 mvm->bt_force_ant_mode = bt_force_ant_mode; 740 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 741 modes_str[mvm->bt_force_ant_mode]); 742 743 if (iwl_mvm_firmware_running(mvm)) 744 ret = iwl_mvm_send_bt_init_conf(mvm); 745 else 746 ret = 0; 747 748 out: 749 mutex_unlock(&mvm->mutex); 750 return ret ?: count; 751 } 752 753 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 754 size_t count, loff_t *ppos) 755 { 756 struct iwl_mvm *mvm = file->private_data; 757 char *buff, *pos, *endpos; 758 static const size_t bufsz = 1024; 759 char _fw_name_pre[FW_NAME_PRE_BUFSIZE]; 760 int ret; 761 762 buff = kmalloc(bufsz, GFP_KERNEL); 763 if (!buff) 764 return -ENOMEM; 765 766 pos = buff; 767 endpos = pos + bufsz; 768 769 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 770 iwl_drv_get_fwname_pre(mvm->trans, _fw_name_pre)); 771 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 772 mvm->fwrt.fw->human_readable); 773 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 774 mvm->fwrt.trans->name); 775 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 776 mvm->fwrt.dev->bus->name); 777 778 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 779 kfree(buff); 780 781 return ret; 782 } 783 784 static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file, 785 char __user *user_buf, 786 size_t count, loff_t *ppos) 787 { 788 struct iwl_mvm *mvm = file->private_data; 789 struct iwl_mvm_tas_status_resp tas_rsp; 790 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp; 791 static const size_t bufsz = 1024; 792 char *buff, *pos, *endpos; 793 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = { 794 [TAS_DISABLED_DUE_TO_BIOS] = 795 "Due To BIOS", 796 [TAS_DISABLED_DUE_TO_SAR_6DBM] = 797 "Due To SAR Limit Less Than 6 dBm", 798 [TAS_DISABLED_REASON_INVALID] = 799 "N/A", 800 }; 801 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = { 802 [TAS_DYNA_INACTIVE] = "INACTIVE", 803 [TAS_DYNA_INACTIVE_MVM_MODE] = 804 "inactive due to mvm mode", 805 [TAS_DYNA_INACTIVE_TRIGGER_MODE] = 806 "inactive due to trigger mode", 807 [TAS_DYNA_INACTIVE_BLOCK_LISTED] = 808 "inactive due to block listed", 809 [TAS_DYNA_INACTIVE_UHB_NON_US] = 810 "inactive due to uhb non US", 811 [TAS_DYNA_ACTIVE] = "ACTIVE", 812 }; 813 struct iwl_host_cmd hcmd = { 814 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS), 815 .flags = CMD_WANT_SKB, 816 .len = { 0, }, 817 .data = { NULL, }, 818 }; 819 int ret, i, tmp; 820 bool tas_enabled = false; 821 unsigned long dyn_status; 822 823 if (!iwl_mvm_firmware_running(mvm)) 824 return -ENODEV; 825 826 mutex_lock(&mvm->mutex); 827 ret = iwl_mvm_send_cmd(mvm, &hcmd); 828 mutex_unlock(&mvm->mutex); 829 if (ret < 0) 830 return ret; 831 832 buff = kzalloc(bufsz, GFP_KERNEL); 833 if (!buff) 834 return -ENOMEM; 835 pos = buff; 836 endpos = pos + bufsz; 837 838 rsp = (void *)hcmd.resp_pkt->data; 839 840 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n"); 841 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 842 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID && 843 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) { 844 pos += scnprintf(pos, endpos - pos, "\tON for "); 845 switch (rsp->tas_status_mac[i].band) { 846 case TAS_LMAC_BAND_HB: 847 pos += scnprintf(pos, endpos - pos, "HB\n"); 848 break; 849 case TAS_LMAC_BAND_LB: 850 pos += scnprintf(pos, endpos - pos, "LB\n"); 851 break; 852 case TAS_LMAC_BAND_UHB: 853 pos += scnprintf(pos, endpos - pos, "UHB\n"); 854 break; 855 case TAS_LMAC_BAND_INVALID: 856 pos += scnprintf(pos, endpos - pos, 857 "INVALID BAND\n"); 858 break; 859 default: 860 pos += scnprintf(pos, endpos - pos, 861 "Unsupported band (%d)\n", 862 rsp->tas_status_mac[i].band); 863 goto out; 864 } 865 tas_enabled = true; 866 } 867 } 868 if (!tas_enabled) 869 pos += scnprintf(pos, endpos - pos, "\tOFF\n"); 870 871 pos += scnprintf(pos, endpos - pos, "TAS Report\n"); 872 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n", 873 rsp->tas_fw_version); 874 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n", 875 rsp->is_uhb_for_usa_enable ? "True" : "False"); 876 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n", 877 le16_to_cpu(rsp->curr_mcc)); 878 879 pos += scnprintf(pos, endpos - pos, "Block list entries:"); 880 for (i = 0; i < APCI_WTAS_BLACK_LIST_MAX; i++) 881 pos += scnprintf(pos, endpos - pos, " 0x%x", 882 le16_to_cpu(rsp->block_list[i])); 883 884 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n", 885 dmi_get_system_info(DMI_SYS_VENDOR)); 886 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n", 887 iwl_mvm_is_vendor_in_approved_list() ? "YES" : "NO"); 888 pos += scnprintf(pos, endpos - pos, 889 "\tDo TAS Support Dual Radio?: %s\n", 890 rsp->in_dual_radio ? "TRUE" : "FALSE"); 891 892 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 893 if (rsp->tas_status_mac[i].static_status == 0) { 894 pos += scnprintf(pos, endpos - pos, 895 "Static status: disabled\n"); 896 pos += scnprintf(pos, endpos - pos, 897 "Static disabled reason: %s (0)\n", 898 tas_dis_reason[0]); 899 goto out; 900 } 901 902 pos += scnprintf(pos, endpos - pos, "TAS status for "); 903 switch (rsp->tas_status_mac[i].band) { 904 case TAS_LMAC_BAND_HB: 905 pos += scnprintf(pos, endpos - pos, "High band\n"); 906 break; 907 case TAS_LMAC_BAND_LB: 908 pos += scnprintf(pos, endpos - pos, "Low band\n"); 909 break; 910 case TAS_LMAC_BAND_UHB: 911 pos += scnprintf(pos, endpos - pos, 912 "Ultra high band\n"); 913 break; 914 case TAS_LMAC_BAND_INVALID: 915 pos += scnprintf(pos, endpos - pos, 916 "INVALID band\n"); 917 break; 918 default: 919 pos += scnprintf(pos, endpos - pos, 920 "Unsupported band (%d)\n", 921 rsp->tas_status_mac[i].band); 922 goto out; 923 } 924 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n", 925 rsp->tas_status_mac[i].static_status ? 926 "En" : "Dis"); 927 pos += scnprintf(pos, endpos - pos, 928 "\tStatic Disabled Reason: "); 929 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX) 930 pos += scnprintf(pos, endpos - pos, "%s (%d)\n", 931 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason], 932 rsp->tas_status_mac[i].static_dis_reason); 933 else 934 pos += scnprintf(pos, endpos - pos, 935 "unsupported value (%d)\n", 936 rsp->tas_status_mac[i].static_dis_reason); 937 938 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n"); 939 dyn_status = (rsp->tas_status_mac[i].dynamic_status); 940 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) { 941 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX) 942 pos += scnprintf(pos, endpos - pos, 943 "\t%s (%d)\n", 944 tas_current_status[tmp], tmp); 945 } 946 947 pos += scnprintf(pos, endpos - pos, 948 "Is near disconnection?: %s\n", 949 rsp->tas_status_mac[i].near_disconnection ? 950 "True" : "False"); 951 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit); 952 pos += scnprintf(pos, endpos - pos, 953 "Max. regulatory pwr limit (dBm): %d.%03d\n", 954 tmp / 8, 125 * (tmp % 8)); 955 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit); 956 pos += scnprintf(pos, endpos - pos, 957 "SAR limit (dBm): %d.%03d\n", 958 tmp / 8, 125 * (tmp % 8)); 959 } 960 961 out: 962 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 963 kfree(buff); 964 iwl_free_resp(&hcmd); 965 return ret; 966 } 967 968 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 969 char __user *user_buf, 970 size_t count, loff_t *ppos) 971 { 972 struct iwl_mvm *mvm = file->private_data; 973 char *buf; 974 size_t bufsz; 975 int pos; 976 ssize_t ret; 977 978 bufsz = mvm->fw->phy_integration_ver_len + 2; 979 buf = kmalloc(bufsz, GFP_KERNEL); 980 if (!buf) 981 return -ENOMEM; 982 983 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 984 mvm->fw->phy_integration_ver); 985 986 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 987 988 kfree(buf); 989 return ret; 990 } 991 992 #define PRINT_STATS_LE32(_struct, _memb) \ 993 pos += scnprintf(buf + pos, bufsz - pos, \ 994 fmt_table, #_memb, \ 995 le32_to_cpu(_struct->_memb)) 996 997 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 998 char __user *user_buf, size_t count, 999 loff_t *ppos) 1000 { 1001 struct iwl_mvm *mvm = file->private_data; 1002 static const char *fmt_table = "\t%-30s %10u\n"; 1003 static const char *fmt_header = "%-32s\n"; 1004 int pos = 0; 1005 char *buf; 1006 int ret; 1007 size_t bufsz; 1008 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1009 WIDE_ID(SYSTEM_GROUP, 1010 SYSTEM_STATISTICS_CMD), 1011 IWL_FW_CMD_VER_UNKNOWN); 1012 1013 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 1014 return -EOPNOTSUPP; 1015 1016 if (iwl_mvm_has_new_rx_stats_api(mvm)) 1017 bufsz = ((sizeof(struct mvm_statistics_rx) / 1018 sizeof(__le32)) * 43) + (4 * 33) + 1; 1019 else 1020 /* 43 = size of each data line; 33 = size of each header */ 1021 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 1022 sizeof(__le32)) * 43) + (4 * 33) + 1; 1023 1024 buf = kzalloc(bufsz, GFP_KERNEL); 1025 if (!buf) 1026 return -ENOMEM; 1027 1028 mutex_lock(&mvm->mutex); 1029 1030 if (iwl_mvm_firmware_running(mvm)) 1031 iwl_mvm_request_statistics(mvm, false); 1032 1033 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1034 "Statistics_Rx - OFDM"); 1035 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1036 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 1037 1038 PRINT_STATS_LE32(ofdm, ina_cnt); 1039 PRINT_STATS_LE32(ofdm, fina_cnt); 1040 PRINT_STATS_LE32(ofdm, plcp_err); 1041 PRINT_STATS_LE32(ofdm, crc32_err); 1042 PRINT_STATS_LE32(ofdm, overrun_err); 1043 PRINT_STATS_LE32(ofdm, early_overrun_err); 1044 PRINT_STATS_LE32(ofdm, crc32_good); 1045 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 1046 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 1047 PRINT_STATS_LE32(ofdm, sfd_timeout); 1048 PRINT_STATS_LE32(ofdm, fina_timeout); 1049 PRINT_STATS_LE32(ofdm, unresponded_rts); 1050 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 1051 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 1052 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 1053 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1054 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1055 PRINT_STATS_LE32(ofdm, mh_format_err); 1056 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 1057 PRINT_STATS_LE32(ofdm, reserved); 1058 } else { 1059 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 1060 1061 PRINT_STATS_LE32(ofdm, unresponded_rts); 1062 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 1063 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1064 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1065 PRINT_STATS_LE32(ofdm, reserved); 1066 } 1067 1068 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1069 "Statistics_Rx - CCK"); 1070 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1071 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 1072 1073 PRINT_STATS_LE32(cck, ina_cnt); 1074 PRINT_STATS_LE32(cck, fina_cnt); 1075 PRINT_STATS_LE32(cck, plcp_err); 1076 PRINT_STATS_LE32(cck, crc32_err); 1077 PRINT_STATS_LE32(cck, overrun_err); 1078 PRINT_STATS_LE32(cck, early_overrun_err); 1079 PRINT_STATS_LE32(cck, crc32_good); 1080 PRINT_STATS_LE32(cck, false_alarm_cnt); 1081 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 1082 PRINT_STATS_LE32(cck, sfd_timeout); 1083 PRINT_STATS_LE32(cck, fina_timeout); 1084 PRINT_STATS_LE32(cck, unresponded_rts); 1085 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1086 PRINT_STATS_LE32(cck, sent_ack_cnt); 1087 PRINT_STATS_LE32(cck, sent_cts_cnt); 1088 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1089 PRINT_STATS_LE32(cck, dsp_self_kill); 1090 PRINT_STATS_LE32(cck, mh_format_err); 1091 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 1092 PRINT_STATS_LE32(cck, reserved); 1093 } else { 1094 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 1095 1096 PRINT_STATS_LE32(cck, unresponded_rts); 1097 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1098 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1099 PRINT_STATS_LE32(cck, dsp_self_kill); 1100 PRINT_STATS_LE32(cck, reserved); 1101 } 1102 1103 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1104 "Statistics_Rx - GENERAL"); 1105 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1106 struct mvm_statistics_rx_non_phy_v3 *general = 1107 &mvm->rx_stats_v3.general; 1108 1109 PRINT_STATS_LE32(general, bogus_cts); 1110 PRINT_STATS_LE32(general, bogus_ack); 1111 PRINT_STATS_LE32(general, non_bssid_frames); 1112 PRINT_STATS_LE32(general, filtered_frames); 1113 PRINT_STATS_LE32(general, non_channel_beacons); 1114 PRINT_STATS_LE32(general, channel_beacons); 1115 PRINT_STATS_LE32(general, num_missed_bcon); 1116 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1117 PRINT_STATS_LE32(general, ina_detection_search_time); 1118 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1119 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1120 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1121 PRINT_STATS_LE32(general, interference_data_flag); 1122 PRINT_STATS_LE32(general, channel_load); 1123 PRINT_STATS_LE32(general, dsp_false_alarms); 1124 PRINT_STATS_LE32(general, beacon_rssi_a); 1125 PRINT_STATS_LE32(general, beacon_rssi_b); 1126 PRINT_STATS_LE32(general, beacon_rssi_c); 1127 PRINT_STATS_LE32(general, beacon_energy_a); 1128 PRINT_STATS_LE32(general, beacon_energy_b); 1129 PRINT_STATS_LE32(general, beacon_energy_c); 1130 PRINT_STATS_LE32(general, num_bt_kills); 1131 PRINT_STATS_LE32(general, mac_id); 1132 PRINT_STATS_LE32(general, directed_data_mpdu); 1133 } else { 1134 struct mvm_statistics_rx_non_phy *general = 1135 &mvm->rx_stats.general; 1136 1137 PRINT_STATS_LE32(general, bogus_cts); 1138 PRINT_STATS_LE32(general, bogus_ack); 1139 PRINT_STATS_LE32(general, non_channel_beacons); 1140 PRINT_STATS_LE32(general, channel_beacons); 1141 PRINT_STATS_LE32(general, num_missed_bcon); 1142 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1143 PRINT_STATS_LE32(general, ina_detection_search_time); 1144 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1145 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1146 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1147 PRINT_STATS_LE32(general, interference_data_flag); 1148 PRINT_STATS_LE32(general, channel_load); 1149 PRINT_STATS_LE32(general, beacon_rssi_a); 1150 PRINT_STATS_LE32(general, beacon_rssi_b); 1151 PRINT_STATS_LE32(general, beacon_rssi_c); 1152 PRINT_STATS_LE32(general, beacon_energy_a); 1153 PRINT_STATS_LE32(general, beacon_energy_b); 1154 PRINT_STATS_LE32(general, beacon_energy_c); 1155 PRINT_STATS_LE32(general, num_bt_kills); 1156 PRINT_STATS_LE32(general, mac_id); 1157 } 1158 1159 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1160 "Statistics_Rx - HT"); 1161 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1162 struct mvm_statistics_rx_ht_phy_v1 *ht = 1163 &mvm->rx_stats_v3.ofdm_ht; 1164 1165 PRINT_STATS_LE32(ht, plcp_err); 1166 PRINT_STATS_LE32(ht, overrun_err); 1167 PRINT_STATS_LE32(ht, early_overrun_err); 1168 PRINT_STATS_LE32(ht, crc32_good); 1169 PRINT_STATS_LE32(ht, crc32_err); 1170 PRINT_STATS_LE32(ht, mh_format_err); 1171 PRINT_STATS_LE32(ht, agg_crc32_good); 1172 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1173 PRINT_STATS_LE32(ht, agg_cnt); 1174 PRINT_STATS_LE32(ht, unsupport_mcs); 1175 } else { 1176 struct mvm_statistics_rx_ht_phy *ht = 1177 &mvm->rx_stats.ofdm_ht; 1178 1179 PRINT_STATS_LE32(ht, mh_format_err); 1180 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1181 PRINT_STATS_LE32(ht, agg_cnt); 1182 PRINT_STATS_LE32(ht, unsupport_mcs); 1183 } 1184 1185 mutex_unlock(&mvm->mutex); 1186 1187 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1188 kfree(buf); 1189 1190 return ret; 1191 } 1192 #undef PRINT_STAT_LE32 1193 1194 static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file, 1195 char __user *user_buf, 1196 size_t count, loff_t *ppos) 1197 { 1198 char *buff, *pos, *endpos; 1199 int ret; 1200 size_t bufsz; 1201 int i; 1202 struct iwl_mvm_vif *mvmvif; 1203 struct ieee80211_vif *vif; 1204 struct iwl_mvm *mvm = file->private_data; 1205 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1206 WIDE_ID(SYSTEM_GROUP, 1207 SYSTEM_STATISTICS_CMD), 1208 IWL_FW_CMD_VER_UNKNOWN); 1209 1210 /* in case of a wrong cmd version, allocate buffer only for error msg */ 1211 bufsz = (cmd_ver == 1) ? 4096 : 64; 1212 1213 buff = kzalloc(bufsz, GFP_KERNEL); 1214 if (!buff) 1215 return -ENOMEM; 1216 1217 pos = buff; 1218 endpos = pos + bufsz; 1219 1220 if (cmd_ver != 1) { 1221 pos += scnprintf(pos, endpos - pos, 1222 "System stats not supported:%d\n", cmd_ver); 1223 goto send_out; 1224 } 1225 1226 mutex_lock(&mvm->mutex); 1227 if (iwl_mvm_firmware_running(mvm)) 1228 iwl_mvm_request_statistics(mvm, false); 1229 1230 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1231 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1232 if (!vif) 1233 continue; 1234 1235 if (vif->type == NL80211_IFTYPE_STATION) 1236 break; 1237 } 1238 1239 if (i == NUM_MAC_INDEX_DRIVER || !vif) { 1240 pos += scnprintf(pos, endpos - pos, "vif is NULL\n"); 1241 goto release_send_out; 1242 } 1243 1244 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1245 if (!mvmvif) { 1246 pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n"); 1247 goto release_send_out; 1248 } 1249 1250 for_each_mvm_vif_valid_link(mvmvif, i) { 1251 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i]; 1252 1253 pos += scnprintf(pos, endpos - pos, 1254 "link_id %d", i); 1255 pos += scnprintf(pos, endpos - pos, 1256 " num_beacons %d", 1257 link_info->beacon_stats.num_beacons); 1258 pos += scnprintf(pos, endpos - pos, 1259 " accu_num_beacons %d", 1260 link_info->beacon_stats.accu_num_beacons); 1261 pos += scnprintf(pos, endpos - pos, 1262 " avg_signal %d\n", 1263 link_info->beacon_stats.avg_signal); 1264 } 1265 1266 pos += scnprintf(pos, endpos - pos, 1267 "radio_stats.rx_time %lld\n", 1268 mvm->radio_stats.rx_time); 1269 pos += scnprintf(pos, endpos - pos, 1270 "radio_stats.tx_time %lld\n", 1271 mvm->radio_stats.tx_time); 1272 pos += scnprintf(pos, endpos - pos, 1273 "accu_radio_stats.rx_time %lld\n", 1274 mvm->accu_radio_stats.rx_time); 1275 pos += scnprintf(pos, endpos - pos, 1276 "accu_radio_stats.tx_time %lld\n", 1277 mvm->accu_radio_stats.tx_time); 1278 1279 release_send_out: 1280 mutex_unlock(&mvm->mutex); 1281 1282 send_out: 1283 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1284 kfree(buff); 1285 1286 return ret; 1287 } 1288 1289 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 1290 char __user *user_buf, size_t count, 1291 loff_t *ppos, 1292 struct iwl_mvm_frame_stats *stats) 1293 { 1294 char *buff, *pos, *endpos; 1295 int idx, i; 1296 int ret; 1297 static const size_t bufsz = 1024; 1298 1299 buff = kmalloc(bufsz, GFP_KERNEL); 1300 if (!buff) 1301 return -ENOMEM; 1302 1303 spin_lock_bh(&mvm->drv_stats_lock); 1304 1305 pos = buff; 1306 endpos = pos + bufsz; 1307 1308 pos += scnprintf(pos, endpos - pos, 1309 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 1310 stats->legacy_frames, 1311 stats->ht_frames, 1312 stats->vht_frames); 1313 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 1314 stats->bw_20_frames, 1315 stats->bw_40_frames, 1316 stats->bw_80_frames); 1317 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 1318 stats->ngi_frames, 1319 stats->sgi_frames); 1320 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 1321 stats->siso_frames, 1322 stats->mimo2_frames); 1323 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 1324 stats->fail_frames, 1325 stats->success_frames); 1326 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 1327 stats->agg_frames); 1328 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 1329 stats->ampdu_count); 1330 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 1331 stats->ampdu_count > 0 ? 1332 (stats->agg_frames / stats->ampdu_count) : 0); 1333 1334 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 1335 1336 idx = stats->last_frame_idx - 1; 1337 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 1338 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 1339 if (stats->last_rates[idx] == 0) 1340 continue; 1341 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 1342 (int)(ARRAY_SIZE(stats->last_rates) - i)); 1343 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 1344 stats->last_rates[idx]); 1345 if (pos < endpos - 1) 1346 *pos++ = '\n'; 1347 } 1348 spin_unlock_bh(&mvm->drv_stats_lock); 1349 1350 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1351 kfree(buff); 1352 1353 return ret; 1354 } 1355 1356 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1357 char __user *user_buf, size_t count, 1358 loff_t *ppos) 1359 { 1360 struct iwl_mvm *mvm = file->private_data; 1361 1362 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1363 &mvm->drv_rx_stats); 1364 } 1365 1366 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1367 size_t count, loff_t *ppos) 1368 { 1369 int __maybe_unused ret; 1370 1371 if (!iwl_mvm_firmware_running(mvm)) 1372 return -EIO; 1373 1374 mutex_lock(&mvm->mutex); 1375 1376 /* allow one more restart that we're provoking here */ 1377 if (mvm->fw_restart >= 0) 1378 mvm->fw_restart++; 1379 1380 if (count == 6 && !strcmp(buf, "nolog\n")) { 1381 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1382 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1383 } 1384 1385 /* take the return value to make compiler happy - it will fail anyway */ 1386 ret = iwl_mvm_send_cmd_pdu(mvm, 1387 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1388 0, 0, NULL); 1389 1390 mutex_unlock(&mvm->mutex); 1391 1392 return count; 1393 } 1394 1395 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1396 size_t count, loff_t *ppos) 1397 { 1398 if (!iwl_mvm_firmware_running(mvm)) 1399 return -EIO; 1400 1401 if (count == 6 && !strcmp(buf, "nolog\n")) 1402 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1403 1404 iwl_force_nmi(mvm->trans); 1405 1406 return count; 1407 } 1408 1409 static ssize_t 1410 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1411 char __user *user_buf, 1412 size_t count, loff_t *ppos) 1413 { 1414 struct iwl_mvm *mvm = file->private_data; 1415 int pos = 0; 1416 char buf[32]; 1417 const size_t bufsz = sizeof(buf); 1418 1419 /* print which antennas were set for the scan command by the user */ 1420 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1421 if (mvm->scan_rx_ant & ANT_A) 1422 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1423 if (mvm->scan_rx_ant & ANT_B) 1424 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1425 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant); 1426 1427 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1428 } 1429 1430 static ssize_t 1431 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1432 size_t count, loff_t *ppos) 1433 { 1434 u8 scan_rx_ant; 1435 1436 if (!iwl_mvm_firmware_running(mvm)) 1437 return -EIO; 1438 1439 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1440 return -EINVAL; 1441 if (scan_rx_ant > ANT_ABC) 1442 return -EINVAL; 1443 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1444 return -EINVAL; 1445 1446 if (mvm->scan_rx_ant != scan_rx_ant) { 1447 mvm->scan_rx_ant = scan_rx_ant; 1448 if (fw_has_capa(&mvm->fw->ucode_capa, 1449 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1450 iwl_mvm_config_scan(mvm); 1451 } 1452 1453 return count; 1454 } 1455 1456 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1457 char *buf, size_t count, 1458 loff_t *ppos) 1459 { 1460 struct iwl_rss_config_cmd cmd = { 1461 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1462 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1463 IWL_RSS_HASH_TYPE_IPV4_UDP | 1464 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1465 IWL_RSS_HASH_TYPE_IPV6_TCP | 1466 IWL_RSS_HASH_TYPE_IPV6_UDP | 1467 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1468 }; 1469 int ret, i, num_repeats, nbytes = count / 2; 1470 1471 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1472 if (ret) 1473 return ret; 1474 1475 /* 1476 * The input is the redirection table, partial or full. 1477 * Repeat the pattern if needed. 1478 * For example, input of 01020F will be repeated 42 times, 1479 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1480 * queues 3 - 14). 1481 */ 1482 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1483 for (i = 1; i < num_repeats; i++) 1484 memcpy(&cmd.indirection_table[i * nbytes], 1485 cmd.indirection_table, nbytes); 1486 /* handle cut in the middle pattern for the last places */ 1487 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1488 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1489 1490 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1491 1492 mutex_lock(&mvm->mutex); 1493 if (iwl_mvm_firmware_running(mvm)) 1494 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1495 sizeof(cmd), &cmd); 1496 else 1497 ret = 0; 1498 mutex_unlock(&mvm->mutex); 1499 1500 return ret ?: count; 1501 } 1502 1503 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1504 char *buf, size_t count, 1505 loff_t *ppos) 1506 { 1507 struct iwl_op_mode *opmode = container_of((void *)mvm, 1508 struct iwl_op_mode, 1509 op_mode_specific); 1510 struct iwl_rx_cmd_buffer rxb = { 1511 ._rx_page_order = 0, 1512 .truesize = 0, /* not used */ 1513 ._offset = 0, 1514 }; 1515 struct iwl_rx_packet *pkt; 1516 int bin_len = count / 2; 1517 int ret = -EINVAL; 1518 1519 if (!iwl_mvm_firmware_running(mvm)) 1520 return -EIO; 1521 1522 /* supporting only MQ RX */ 1523 if (!mvm->trans->trans_cfg->mq_rx_supported) 1524 return -EOPNOTSUPP; 1525 1526 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1527 if (!rxb._page) 1528 return -ENOMEM; 1529 pkt = rxb_addr(&rxb); 1530 1531 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1532 if (ret) 1533 goto out; 1534 1535 /* avoid invalid memory access and malformed packet */ 1536 if (bin_len < sizeof(*pkt) || 1537 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1538 goto out; 1539 1540 local_bh_disable(); 1541 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1542 local_bh_enable(); 1543 ret = 0; 1544 1545 out: 1546 iwl_free_rxb(&rxb); 1547 1548 return ret ?: count; 1549 } 1550 1551 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1552 { 1553 struct ieee80211_vif *vif; 1554 struct iwl_mvm_vif *mvmvif; 1555 struct sk_buff *beacon; 1556 struct ieee80211_tx_info *info; 1557 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1558 unsigned int link_id; 1559 u8 rate; 1560 int i; 1561 1562 len /= 2; 1563 1564 /* Element len should be represented by u8 */ 1565 if (len >= U8_MAX) 1566 return -EINVAL; 1567 1568 if (!iwl_mvm_firmware_running(mvm)) 1569 return -EIO; 1570 1571 if (!iwl_mvm_has_new_tx_api(mvm) && 1572 !fw_has_api(&mvm->fw->ucode_capa, 1573 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1574 return -EINVAL; 1575 1576 mutex_lock(&mvm->mutex); 1577 1578 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1579 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1580 if (!vif) 1581 continue; 1582 1583 if (vif->type == NL80211_IFTYPE_AP) 1584 break; 1585 } 1586 1587 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1588 goto out_err; 1589 1590 mvm->hw->extra_beacon_tailroom = len; 1591 1592 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); 1593 if (!beacon) 1594 goto out_err; 1595 1596 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1597 dev_kfree_skb(beacon); 1598 goto out_err; 1599 } 1600 1601 mvm->beacon_inject_active = true; 1602 1603 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1604 info = IEEE80211_SKB_CB(beacon); 1605 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); 1606 1607 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1608 beacon_cmd.flags = 1609 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, 1610 rate)); 1611 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1612 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12) 1613 beacon_cmd.link_id = 1614 cpu_to_le32(mvmvif->link[link_id]->fw_link_id); 1615 else 1616 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id); 1617 1618 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1619 &beacon_cmd.tim_size, 1620 beacon->data, beacon->len); 1621 1622 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1623 sizeof(beacon_cmd)); 1624 } 1625 mutex_unlock(&mvm->mutex); 1626 1627 dev_kfree_skb(beacon); 1628 1629 return 0; 1630 1631 out_err: 1632 mutex_unlock(&mvm->mutex); 1633 return -EINVAL; 1634 } 1635 1636 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1637 char *buf, size_t count, 1638 loff_t *ppos) 1639 { 1640 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1641 1642 mvm->hw->extra_beacon_tailroom = 0; 1643 return ret ?: count; 1644 } 1645 1646 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1647 char *buf, 1648 size_t count, 1649 loff_t *ppos) 1650 { 1651 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1652 1653 mvm->hw->extra_beacon_tailroom = 0; 1654 mvm->beacon_inject_active = false; 1655 return ret ?: count; 1656 } 1657 1658 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1659 char __user *user_buf, 1660 size_t count, loff_t *ppos) 1661 { 1662 struct iwl_mvm *mvm = file->private_data; 1663 int conf; 1664 char buf[8]; 1665 const size_t bufsz = sizeof(buf); 1666 int pos = 0; 1667 1668 mutex_lock(&mvm->mutex); 1669 conf = mvm->fwrt.dump.conf; 1670 mutex_unlock(&mvm->mutex); 1671 1672 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1673 1674 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1675 } 1676 1677 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1678 char *buf, size_t count, 1679 loff_t *ppos) 1680 { 1681 unsigned int conf_id; 1682 int ret; 1683 1684 if (!iwl_mvm_firmware_running(mvm)) 1685 return -EIO; 1686 1687 ret = kstrtouint(buf, 0, &conf_id); 1688 if (ret) 1689 return ret; 1690 1691 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1692 return -EINVAL; 1693 1694 mutex_lock(&mvm->mutex); 1695 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1696 mutex_unlock(&mvm->mutex); 1697 1698 return ret ?: count; 1699 } 1700 1701 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1702 char *buf, size_t count, 1703 loff_t *ppos) 1704 { 1705 if (count == 0) 1706 return 0; 1707 1708 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1709 NULL); 1710 1711 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1712 (count - 1), NULL); 1713 1714 return count; 1715 } 1716 1717 static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm, 1718 char *buf, size_t count, 1719 loff_t *ppos) 1720 { 1721 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1722 return -EOPNOTSUPP; 1723 1724 mutex_lock(&mvm->mutex); 1725 iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt); 1726 mutex_unlock(&mvm->mutex); 1727 1728 return count; 1729 } 1730 1731 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1732 char *buf, size_t count, 1733 loff_t *ppos) 1734 { 1735 u32 timepoint; 1736 1737 if (kstrtou32(buf, 0, &timepoint)) 1738 return -EINVAL; 1739 1740 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1741 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1742 return -EINVAL; 1743 1744 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1745 1746 return count; 1747 } 1748 1749 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1750 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1751 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1752 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1753 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1754 debugfs_create_file(alias, mode, parent, mvm, \ 1755 &iwl_dbgfs_##name##_ops); \ 1756 } while (0) 1757 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1758 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1759 1760 static ssize_t 1761 _iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *, 1762 struct iwl_mvm_sta *, 1763 struct iwl_mvm *, 1764 struct iwl_mvm_link_sta *, 1765 char *, 1766 size_t, loff_t *), 1767 struct file *file, 1768 char *buf, size_t buf_size, loff_t *ppos) 1769 { 1770 struct ieee80211_link_sta *link_sta = file->private_data; 1771 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); 1772 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; 1773 struct iwl_mvm_link_sta *mvm_link_sta; 1774 ssize_t ret; 1775 1776 mutex_lock(&mvm->mutex); 1777 1778 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], 1779 lockdep_is_held(&mvm->mutex)); 1780 if (WARN_ON(!mvm_link_sta)) { 1781 mutex_unlock(&mvm->mutex); 1782 return -ENODEV; 1783 } 1784 1785 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos); 1786 1787 mutex_unlock(&mvm->mutex); 1788 1789 return ret; 1790 } 1791 1792 static ssize_t 1793 _iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *, 1794 struct iwl_mvm_sta *, 1795 struct iwl_mvm *, 1796 struct iwl_mvm_link_sta *, 1797 char __user *, 1798 size_t, loff_t *), 1799 struct file *file, 1800 char __user *user_buf, size_t count, loff_t *ppos) 1801 { 1802 struct ieee80211_link_sta *link_sta = file->private_data; 1803 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); 1804 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; 1805 struct iwl_mvm_link_sta *mvm_link_sta; 1806 ssize_t ret; 1807 1808 mutex_lock(&mvm->mutex); 1809 1810 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], 1811 lockdep_is_held(&mvm->mutex)); 1812 if (WARN_ON(!mvm_link_sta)) { 1813 mutex_unlock(&mvm->mutex); 1814 return -ENODEV; 1815 } 1816 1817 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos); 1818 1819 mutex_unlock(&mvm->mutex); 1820 1821 return ret; 1822 } 1823 1824 #define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \ 1825 static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \ 1826 const char __user *user_buf, \ 1827 size_t count, loff_t *ppos) \ 1828 { \ 1829 char buf[buflen] = {}; \ 1830 size_t buf_size = min(count, sizeof(buf) - 1); \ 1831 \ 1832 if (copy_from_user(buf, user_buf, buf_size)) \ 1833 return -EFAULT; \ 1834 \ 1835 return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \ 1836 file, \ 1837 buf, buf_size, ppos); \ 1838 } \ 1839 1840 #define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1841 static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \ 1842 char __user *user_buf, \ 1843 size_t count, loff_t *ppos) \ 1844 { \ 1845 return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \ 1846 file, \ 1847 user_buf, count, ppos); \ 1848 } \ 1849 1850 #define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ 1851 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ 1852 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1853 .write = _iwl_dbgfs_link_sta_##name##_write, \ 1854 .open = simple_open, \ 1855 .llseek = generic_file_llseek, \ 1856 } 1857 1858 #define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \ 1859 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1860 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1861 .read = _iwl_dbgfs_link_sta_##name##_read, \ 1862 .open = simple_open, \ 1863 .llseek = generic_file_llseek, \ 1864 } 1865 1866 #define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ 1867 MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1868 MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ 1869 static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1870 .read = _iwl_dbgfs_link_sta_##name##_read, \ 1871 .write = _iwl_dbgfs_link_sta_##name##_write, \ 1872 .open = simple_open, \ 1873 .llseek = generic_file_llseek, \ 1874 } 1875 1876 #define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \ 1877 debugfs_create_file(alias, mode, parent, link_sta, \ 1878 &iwl_dbgfs_link_sta_##name##_ops) 1879 #define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \ 1880 MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode) 1881 1882 static ssize_t 1883 iwl_dbgfs_prph_reg_read(struct file *file, 1884 char __user *user_buf, 1885 size_t count, loff_t *ppos) 1886 { 1887 struct iwl_mvm *mvm = file->private_data; 1888 int pos = 0; 1889 char buf[32]; 1890 const size_t bufsz = sizeof(buf); 1891 1892 if (!mvm->dbgfs_prph_reg_addr) 1893 return -EINVAL; 1894 1895 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1896 mvm->dbgfs_prph_reg_addr, 1897 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1898 1899 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1900 } 1901 1902 static ssize_t 1903 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1904 size_t count, loff_t *ppos) 1905 { 1906 u8 args; 1907 u32 value; 1908 1909 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1910 /* if we only want to set the reg address - nothing more to do */ 1911 if (args == 1) 1912 goto out; 1913 1914 /* otherwise, make sure we have both address and value */ 1915 if (args != 2) 1916 return -EINVAL; 1917 1918 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1919 1920 out: 1921 return count; 1922 } 1923 1924 static ssize_t 1925 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1926 size_t count, loff_t *ppos) 1927 { 1928 int ret; 1929 1930 if (!iwl_mvm_firmware_running(mvm)) 1931 return -EIO; 1932 1933 mutex_lock(&mvm->mutex); 1934 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1935 mutex_unlock(&mvm->mutex); 1936 1937 return ret ?: count; 1938 } 1939 1940 struct iwl_mvm_sniffer_apply { 1941 struct iwl_mvm *mvm; 1942 u8 *bssid; 1943 u16 aid; 1944 }; 1945 1946 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1947 struct iwl_rx_packet *pkt, void *data) 1948 { 1949 struct iwl_mvm_sniffer_apply *apply = data; 1950 1951 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1952 memcpy(apply->mvm->cur_bssid, apply->bssid, 1953 sizeof(apply->mvm->cur_bssid)); 1954 1955 return true; 1956 } 1957 1958 static ssize_t 1959 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1960 size_t count, loff_t *ppos) 1961 { 1962 struct iwl_notification_wait wait; 1963 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1964 struct iwl_mvm_sniffer_apply apply = { 1965 .mvm = mvm, 1966 }; 1967 u16 wait_cmds[] = { 1968 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1969 }; 1970 u32 aid; 1971 int ret; 1972 1973 if (!iwl_mvm_firmware_running(mvm)) 1974 return -EIO; 1975 1976 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1977 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1978 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1979 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1980 if (ret != 7) 1981 return -EINVAL; 1982 1983 he_mon_cmd.aid = cpu_to_le16(aid); 1984 1985 apply.aid = aid; 1986 apply.bssid = (void *)he_mon_cmd.bssid; 1987 1988 mutex_lock(&mvm->mutex); 1989 1990 /* 1991 * Use the notification waiter to get our function triggered 1992 * in sequence with other RX. This ensures that frames we get 1993 * on the RX queue _before_ the new configuration is applied 1994 * still have mvm->cur_aid pointing to the old AID, and that 1995 * frames on the RX queue _after_ the firmware processed the 1996 * new configuration (and sent the response, synchronously) 1997 * get mvm->cur_aid correctly set to the new AID. 1998 */ 1999 iwl_init_notification_wait(&mvm->notif_wait, &wait, 2000 wait_cmds, ARRAY_SIZE(wait_cmds), 2001 iwl_mvm_sniffer_apply, &apply); 2002 2003 ret = iwl_mvm_send_cmd_pdu(mvm, 2004 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 2005 0, 2006 sizeof(he_mon_cmd), &he_mon_cmd); 2007 2008 /* no need to really wait, we already did anyway */ 2009 iwl_remove_notification(&mvm->notif_wait, &wait); 2010 2011 mutex_unlock(&mvm->mutex); 2012 2013 return ret ?: count; 2014 } 2015 2016 static ssize_t 2017 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 2018 size_t count, loff_t *ppos) 2019 { 2020 struct iwl_mvm *mvm = file->private_data; 2021 u8 buf[32]; 2022 int len; 2023 2024 len = scnprintf(buf, sizeof(buf), 2025 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 2026 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 2027 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 2028 mvm->cur_bssid[4], mvm->cur_bssid[5]); 2029 2030 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2031 } 2032 2033 static ssize_t 2034 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 2035 size_t count, loff_t *ppos) 2036 { 2037 struct iwl_mvm *mvm = file->private_data; 2038 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 2039 unsigned int pos = 0; 2040 size_t bufsz = sizeof(buf); 2041 int i; 2042 2043 mutex_lock(&mvm->mutex); 2044 2045 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 2046 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 2047 mvm->uapsd_noagg_bssids[i].addr); 2048 2049 mutex_unlock(&mvm->mutex); 2050 2051 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2052 } 2053 2054 static ssize_t 2055 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 2056 char *buf, size_t count, loff_t *ppos) 2057 { 2058 int ret; 2059 struct iwl_ltr_config_cmd ltr_config = {0}; 2060 2061 if (!iwl_mvm_firmware_running(mvm)) 2062 return -EIO; 2063 2064 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 2065 <r_config.flags, 2066 <r_config.static_long, 2067 <r_config.static_short, 2068 <r_config.ltr_cfg_values[0], 2069 <r_config.ltr_cfg_values[1], 2070 <r_config.ltr_cfg_values[2], 2071 <r_config.ltr_cfg_values[3]) != 7) { 2072 return -EINVAL; 2073 } 2074 2075 mutex_lock(&mvm->mutex); 2076 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 2077 <r_config); 2078 mutex_unlock(&mvm->mutex); 2079 2080 if (ret) 2081 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 2082 2083 return ret ?: count; 2084 } 2085 2086 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 2087 size_t count, loff_t *ppos) 2088 { 2089 int ret = 0; 2090 u16 op_id; 2091 2092 if (kstrtou16(buf, 10, &op_id)) 2093 return -EINVAL; 2094 2095 /* value zero triggers re-sending the default table to the device */ 2096 if (!op_id) { 2097 mutex_lock(&mvm->mutex); 2098 ret = iwl_rfi_send_config_cmd(mvm, NULL); 2099 mutex_unlock(&mvm->mutex); 2100 } else { 2101 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 2102 } 2103 2104 return ret ?: count; 2105 } 2106 2107 /* The size computation is as follows: 2108 * each number needs at most 3 characters, number of rows is the size of 2109 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 2110 * needs 6 characters for numbers and 5 for the punctuation around. 2111 */ 2112 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 2113 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 2114 2115 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 2116 char __user *user_buf, 2117 size_t count, loff_t *ppos) 2118 { 2119 struct iwl_mvm *mvm = file->private_data; 2120 struct iwl_rfi_freq_table_resp_cmd *resp; 2121 u32 status; 2122 char buf[IWL_RFI_BUF_SIZE]; 2123 int i, j, pos = 0; 2124 2125 resp = iwl_rfi_get_freq_table(mvm); 2126 if (IS_ERR(resp)) 2127 return PTR_ERR(resp); 2128 2129 status = le32_to_cpu(resp->status); 2130 if (status != RFI_FREQ_TABLE_OK) { 2131 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 2132 goto out; 2133 } 2134 2135 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 2136 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 2137 resp->table[i].freq); 2138 2139 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 2140 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 2141 "(%d, %d) ", 2142 resp->table[i].channels[j], 2143 resp->table[i].bands[j]); 2144 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 2145 } 2146 2147 out: 2148 kfree(resp); 2149 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2150 } 2151 2152 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 2153 2154 /* Device wide debugfs entries */ 2155 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 2156 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 2157 MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8); 2158 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 2159 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 2160 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 2161 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 2162 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 2163 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 2164 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 2165 MVM_DEBUGFS_READ_FILE_OPS(stations); 2166 MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data); 2167 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 2168 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 2169 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 2170 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 2171 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 2172 MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats); 2173 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 2174 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 2175 MVM_DEBUGFS_READ_FILE_OPS(tas_get_status); 2176 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 2177 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 2178 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 2179 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 2180 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 2181 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 2182 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 2183 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64); 2184 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 2185 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 2186 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 2187 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 2188 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 2189 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 2190 2191 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 2192 2193 #ifdef CONFIG_ACPI 2194 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 2195 MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable); 2196 #endif 2197 2198 MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16); 2199 2200 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 2201 2202 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 2203 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 2204 2205 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 2206 size_t count, loff_t *ppos) 2207 { 2208 struct iwl_mvm *mvm = file->private_data; 2209 struct iwl_dbg_mem_access_cmd cmd = {}; 2210 struct iwl_dbg_mem_access_rsp *rsp; 2211 struct iwl_host_cmd hcmd = { 2212 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 2213 .data = { &cmd, }, 2214 .len = { sizeof(cmd) }, 2215 }; 2216 size_t delta; 2217 ssize_t ret, len; 2218 2219 if (!iwl_mvm_firmware_running(mvm)) 2220 return -EIO; 2221 2222 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 2223 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 2224 2225 /* Take care of alignment of both the position and the length */ 2226 delta = *ppos & 0x3; 2227 cmd.addr = cpu_to_le32(*ppos - delta); 2228 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 2229 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 2230 2231 mutex_lock(&mvm->mutex); 2232 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2233 mutex_unlock(&mvm->mutex); 2234 2235 if (ret < 0) 2236 return ret; 2237 2238 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 2239 ret = -EIO; 2240 goto out; 2241 } 2242 2243 rsp = (void *)hcmd.resp_pkt->data; 2244 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 2245 ret = -ENXIO; 2246 goto out; 2247 } 2248 2249 len = min((size_t)le32_to_cpu(rsp->len) << 2, 2250 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 2251 len = min(len - delta, count); 2252 if (len < 0) { 2253 ret = -EFAULT; 2254 goto out; 2255 } 2256 2257 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 2258 *ppos += ret; 2259 2260 out: 2261 iwl_free_resp(&hcmd); 2262 return ret; 2263 } 2264 2265 static ssize_t iwl_dbgfs_mem_write(struct file *file, 2266 const char __user *user_buf, size_t count, 2267 loff_t *ppos) 2268 { 2269 struct iwl_mvm *mvm = file->private_data; 2270 struct iwl_dbg_mem_access_cmd *cmd; 2271 struct iwl_dbg_mem_access_rsp *rsp; 2272 struct iwl_host_cmd hcmd = {}; 2273 size_t cmd_size; 2274 size_t data_size; 2275 u32 op, len; 2276 ssize_t ret; 2277 2278 if (!iwl_mvm_firmware_running(mvm)) 2279 return -EIO; 2280 2281 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 2282 2283 if (*ppos & 0x3 || count < 4) { 2284 op = DEBUG_MEM_OP_WRITE_BYTES; 2285 len = min(count, (size_t)(4 - (*ppos & 0x3))); 2286 data_size = len; 2287 } else { 2288 op = DEBUG_MEM_OP_WRITE; 2289 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 2290 data_size = len << 2; 2291 } 2292 2293 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 2294 cmd = kzalloc(cmd_size, GFP_KERNEL); 2295 if (!cmd) 2296 return -ENOMEM; 2297 2298 cmd->op = cpu_to_le32(op); 2299 cmd->len = cpu_to_le32(len); 2300 cmd->addr = cpu_to_le32(*ppos); 2301 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 2302 kfree(cmd); 2303 return -EFAULT; 2304 } 2305 2306 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 2307 hcmd.data[0] = (void *)cmd; 2308 hcmd.len[0] = cmd_size; 2309 2310 mutex_lock(&mvm->mutex); 2311 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2312 mutex_unlock(&mvm->mutex); 2313 2314 kfree(cmd); 2315 2316 if (ret < 0) 2317 return ret; 2318 2319 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 2320 ret = -EIO; 2321 goto out; 2322 } 2323 2324 rsp = (void *)hcmd.resp_pkt->data; 2325 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 2326 ret = -ENXIO; 2327 goto out; 2328 } 2329 2330 ret = data_size; 2331 *ppos += ret; 2332 2333 out: 2334 iwl_free_resp(&hcmd); 2335 return ret; 2336 } 2337 2338 static const struct file_operations iwl_dbgfs_mem_ops = { 2339 .read = iwl_dbgfs_mem_read, 2340 .write = iwl_dbgfs_mem_write, 2341 .open = simple_open, 2342 .llseek = default_llseek, 2343 }; 2344 2345 void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw, 2346 struct ieee80211_vif *vif, 2347 struct ieee80211_link_sta *link_sta, 2348 struct dentry *dir) 2349 { 2350 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2351 2352 if (iwl_mvm_has_tlc_offload(mvm)) { 2353 MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400); 2354 } 2355 2356 MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600); 2357 } 2358 2359 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 2360 { 2361 struct dentry *bcast_dir __maybe_unused; 2362 2363 spin_lock_init(&mvm->drv_stats_lock); 2364 2365 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 2366 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 2367 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 2368 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 2369 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 2370 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 2371 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 2372 MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200); 2373 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 2374 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 2375 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 2376 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 2377 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 2378 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 2379 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 2380 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 2381 MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400); 2382 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 2383 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 2384 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 2385 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 2386 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 2387 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 2388 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 2389 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 2390 MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200); 2391 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 2392 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 2393 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 2394 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 2395 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 2396 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 2397 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 2398 2399 if (mvm->fw->phy_integration_ver) 2400 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 2401 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400); 2402 #ifdef CONFIG_ACPI 2403 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 2404 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400); 2405 #endif 2406 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 2407 2408 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 2409 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 2410 2411 debugfs_create_bool("enable_scan_iteration_notif", 0600, 2412 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 2413 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 2414 &mvm->drop_bcn_ap_mode); 2415 2416 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2417 2418 #ifdef CONFIG_PM_SLEEP 2419 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2420 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 2421 &mvm->d3_wake_sysassert); 2422 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 2423 &mvm->last_netdetect_scans); 2424 #endif 2425 2426 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 2427 &mvm->ps_disabled); 2428 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 2429 &mvm->nvm_hw_blob); 2430 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 2431 &mvm->nvm_sw_blob); 2432 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 2433 &mvm->nvm_calib_blob); 2434 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 2435 &mvm->nvm_prod_blob); 2436 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 2437 &mvm->nvm_phy_sku_blob); 2438 debugfs_create_blob("nvm_reg", S_IRUSR, 2439 mvm->debugfs_dir, &mvm->nvm_reg_blob); 2440 2441 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 2442 &iwl_dbgfs_mem_ops); 2443 2444 /* 2445 * Create a symlink with mac80211. It will be removed when mac80211 2446 * exists (before the opmode exists which removes the target.) 2447 */ 2448 if (!IS_ERR(mvm->debugfs_dir)) { 2449 char buf[100]; 2450 2451 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 2452 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, 2453 buf); 2454 } 2455 } 2456