1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2021 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/ieee80211.h> 9 #include <linux/netdevice.h> 10 11 #include "mvm.h" 12 #include "sta.h" 13 #include "iwl-io.h" 14 #include "debugfs.h" 15 #include "iwl-modparams.h" 16 #include "fw/error-dump.h" 17 18 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 19 char __user *user_buf, 20 size_t count, loff_t *ppos) 21 { 22 struct iwl_mvm *mvm = file->private_data; 23 char buf[16]; 24 int pos, budget; 25 26 if (!iwl_mvm_is_ctdp_supported(mvm)) 27 return -EOPNOTSUPP; 28 29 if (!iwl_mvm_firmware_running(mvm) || 30 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 31 return -EIO; 32 33 mutex_lock(&mvm->mutex); 34 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 35 mutex_unlock(&mvm->mutex); 36 37 if (budget < 0) 38 return budget; 39 40 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 41 42 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 43 } 44 45 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 46 size_t count, loff_t *ppos) 47 { 48 int ret; 49 50 if (!iwl_mvm_is_ctdp_supported(mvm)) 51 return -EOPNOTSUPP; 52 53 if (!iwl_mvm_firmware_running(mvm) || 54 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 55 return -EIO; 56 57 mutex_lock(&mvm->mutex); 58 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 59 mutex_unlock(&mvm->mutex); 60 61 return ret ?: count; 62 } 63 64 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 65 size_t count, loff_t *ppos) 66 { 67 if (!iwl_mvm_firmware_running(mvm) || 68 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 69 return -EIO; 70 71 iwl_mvm_enter_ctkill(mvm); 72 73 return count; 74 } 75 76 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 77 size_t count, loff_t *ppos) 78 { 79 int ret; 80 u32 flush_arg; 81 82 if (!iwl_mvm_firmware_running(mvm) || 83 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 84 return -EIO; 85 86 if (kstrtou32(buf, 0, &flush_arg)) 87 return -EINVAL; 88 89 if (iwl_mvm_has_new_tx_api(mvm)) { 90 IWL_DEBUG_TX_QUEUES(mvm, 91 "FLUSHING all tids queues on sta_id = %d\n", 92 flush_arg); 93 mutex_lock(&mvm->mutex); 94 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF) 95 ? : count; 96 mutex_unlock(&mvm->mutex); 97 return ret; 98 } 99 100 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 101 flush_arg); 102 103 mutex_lock(&mvm->mutex); 104 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count; 105 mutex_unlock(&mvm->mutex); 106 107 return ret; 108 } 109 110 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 111 size_t count, loff_t *ppos) 112 { 113 struct iwl_mvm_sta *mvmsta; 114 int sta_id, drain, ret; 115 116 if (!iwl_mvm_firmware_running(mvm) || 117 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 118 return -EIO; 119 120 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 121 return -EINVAL; 122 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations) 123 return -EINVAL; 124 if (drain < 0 || drain > 1) 125 return -EINVAL; 126 127 mutex_lock(&mvm->mutex); 128 129 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 130 131 if (!mvmsta) 132 ret = -ENOENT; 133 else 134 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 135 136 mutex_unlock(&mvm->mutex); 137 138 return ret; 139 } 140 141 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 142 size_t count, loff_t *ppos) 143 { 144 struct iwl_mvm *mvm = file->private_data; 145 const struct fw_img *img; 146 unsigned int ofs, len; 147 size_t ret; 148 u8 *ptr; 149 150 if (!iwl_mvm_firmware_running(mvm)) 151 return -EINVAL; 152 153 /* default is to dump the entire data segment */ 154 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 155 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 156 len = img->sec[IWL_UCODE_SECTION_DATA].len; 157 158 if (mvm->dbgfs_sram_len) { 159 ofs = mvm->dbgfs_sram_offset; 160 len = mvm->dbgfs_sram_len; 161 } 162 163 ptr = kzalloc(len, GFP_KERNEL); 164 if (!ptr) 165 return -ENOMEM; 166 167 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 168 169 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 170 171 kfree(ptr); 172 173 return ret; 174 } 175 176 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 177 size_t count, loff_t *ppos) 178 { 179 const struct fw_img *img; 180 u32 offset, len; 181 u32 img_offset, img_len; 182 183 if (!iwl_mvm_firmware_running(mvm)) 184 return -EINVAL; 185 186 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 187 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 188 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 189 190 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 191 if ((offset & 0x3) || (len & 0x3)) 192 return -EINVAL; 193 194 if (offset + len > img_offset + img_len) 195 return -EINVAL; 196 197 mvm->dbgfs_sram_offset = offset; 198 mvm->dbgfs_sram_len = len; 199 } else { 200 mvm->dbgfs_sram_offset = 0; 201 mvm->dbgfs_sram_len = 0; 202 } 203 204 return count; 205 } 206 207 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 208 char __user *user_buf, 209 size_t count, loff_t *ppos) 210 { 211 struct iwl_mvm *mvm = file->private_data; 212 char buf[16]; 213 int pos; 214 215 if (!mvm->temperature_test) 216 pos = scnprintf(buf , sizeof(buf), "disabled\n"); 217 else 218 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature); 219 220 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 221 } 222 223 /* 224 * Set NIC Temperature 225 * Cause the driver to ignore the actual NIC temperature reported by the FW 226 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 227 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 228 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 229 */ 230 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 231 char *buf, size_t count, 232 loff_t *ppos) 233 { 234 int temperature; 235 236 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 237 return -EIO; 238 239 if (kstrtoint(buf, 10, &temperature)) 240 return -EINVAL; 241 /* not a legal temperature */ 242 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 243 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 244 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 245 return -EINVAL; 246 247 mutex_lock(&mvm->mutex); 248 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 249 if (!mvm->temperature_test) 250 goto out; 251 252 mvm->temperature_test = false; 253 /* Since we can't read the temp while awake, just set 254 * it to zero until we get the next RX stats from the 255 * firmware. 256 */ 257 mvm->temperature = 0; 258 } else { 259 mvm->temperature_test = true; 260 mvm->temperature = temperature; 261 } 262 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 263 mvm->temperature_test ? "En" : "Dis" , 264 mvm->temperature); 265 /* handle the temperature change */ 266 iwl_mvm_tt_handler(mvm); 267 268 out: 269 mutex_unlock(&mvm->mutex); 270 271 return count; 272 } 273 274 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 275 char __user *user_buf, 276 size_t count, loff_t *ppos) 277 { 278 struct iwl_mvm *mvm = file->private_data; 279 char buf[16]; 280 int pos, ret; 281 s32 temp; 282 283 if (!iwl_mvm_firmware_running(mvm)) 284 return -EIO; 285 286 mutex_lock(&mvm->mutex); 287 ret = iwl_mvm_get_temp(mvm, &temp); 288 mutex_unlock(&mvm->mutex); 289 290 if (ret) 291 return -EIO; 292 293 pos = scnprintf(buf , sizeof(buf), "%d\n", temp); 294 295 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 296 } 297 298 #ifdef CONFIG_ACPI 299 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 300 char __user *user_buf, 301 size_t count, loff_t *ppos) 302 { 303 struct iwl_mvm *mvm = file->private_data; 304 char buf[256]; 305 int pos = 0; 306 int bufsz = sizeof(buf); 307 int tbl_idx; 308 309 if (!iwl_mvm_firmware_running(mvm)) 310 return -EIO; 311 312 mutex_lock(&mvm->mutex); 313 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 314 if (tbl_idx < 0) { 315 mutex_unlock(&mvm->mutex); 316 return tbl_idx; 317 } 318 319 if (!tbl_idx) { 320 pos = scnprintf(buf, bufsz, 321 "SAR geographic profile disabled\n"); 322 } else { 323 pos += scnprintf(buf + pos, bufsz - pos, 324 "Use geographic profile %d\n", tbl_idx); 325 pos += scnprintf(buf + pos, bufsz - pos, 326 "2.4GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n", 327 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0], 328 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1], 329 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max); 330 pos += scnprintf(buf + pos, bufsz - pos, 331 "5.2GHz:\n\tChain A offset: %hhu dBm\n\tChain B offset: %hhu dBm\n\tmax tx power: %hhu dBm\n", 332 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0], 333 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1], 334 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max); 335 } 336 mutex_unlock(&mvm->mutex); 337 338 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 339 } 340 #endif 341 342 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 343 size_t count, loff_t *ppos) 344 { 345 struct iwl_mvm *mvm = file->private_data; 346 struct ieee80211_sta *sta; 347 char buf[400]; 348 int i, pos = 0, bufsz = sizeof(buf); 349 350 mutex_lock(&mvm->mutex); 351 352 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 353 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 354 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 355 lockdep_is_held(&mvm->mutex)); 356 if (!sta) 357 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 358 else if (IS_ERR(sta)) 359 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 360 PTR_ERR(sta)); 361 else 362 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 363 sta->addr); 364 } 365 366 mutex_unlock(&mvm->mutex); 367 368 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 369 } 370 371 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf, 372 size_t count, loff_t *ppos) 373 { 374 struct ieee80211_sta *sta = file->private_data; 375 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 376 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 377 struct iwl_mvm *mvm = lq_sta->pers.drv; 378 static const size_t bufsz = 2048; 379 char *buff; 380 int desc = 0; 381 ssize_t ret; 382 383 buff = kmalloc(bufsz, GFP_KERNEL); 384 if (!buff) 385 return -ENOMEM; 386 387 mutex_lock(&mvm->mutex); 388 389 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 390 lq_sta->pers.sta_id); 391 desc += scnprintf(buff + desc, bufsz - desc, 392 "fixed rate 0x%X\n", 393 lq_sta->pers.dbg_fixed_rate); 394 desc += scnprintf(buff + desc, bufsz - desc, 395 "A-MPDU size limit %d\n", 396 lq_sta->pers.dbg_agg_frame_count_lim); 397 desc += scnprintf(buff + desc, bufsz - desc, 398 "valid_tx_ant %s%s\n", 399 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 400 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : ""); 401 desc += scnprintf(buff + desc, bufsz - desc, 402 "last tx rate=0x%X ", 403 lq_sta->last_rate_n_flags); 404 405 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 406 lq_sta->last_rate_n_flags); 407 if (desc < bufsz - 1) 408 buff[desc++] = '\n'; 409 mutex_unlock(&mvm->mutex); 410 411 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 412 kfree(buff); 413 return ret; 414 } 415 416 static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta, 417 char *buf, size_t count, 418 loff_t *ppos) 419 { 420 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 421 int i; 422 u16 amsdu_len; 423 424 if (kstrtou16(buf, 0, &amsdu_len)) 425 return -EINVAL; 426 427 /* only change from debug set <-> debug unset */ 428 if (amsdu_len && mvmsta->orig_amsdu_len) 429 return -EBUSY; 430 431 if (amsdu_len) { 432 mvmsta->orig_amsdu_len = sta->max_amsdu_len; 433 sta->max_amsdu_len = amsdu_len; 434 for (i = 0; i < ARRAY_SIZE(sta->max_tid_amsdu_len); i++) 435 sta->max_tid_amsdu_len[i] = amsdu_len; 436 } else { 437 sta->max_amsdu_len = mvmsta->orig_amsdu_len; 438 mvmsta->orig_amsdu_len = 0; 439 } 440 return count; 441 } 442 443 static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file, 444 char __user *user_buf, 445 size_t count, loff_t *ppos) 446 { 447 struct ieee80211_sta *sta = file->private_data; 448 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 449 450 char buf[32]; 451 int pos; 452 453 pos = scnprintf(buf, sizeof(buf), "current %d ", sta->max_amsdu_len); 454 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", 455 mvmsta->orig_amsdu_len); 456 457 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 458 } 459 460 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 461 char __user *user_buf, 462 size_t count, loff_t *ppos) 463 { 464 struct iwl_mvm *mvm = file->private_data; 465 char buf[64]; 466 int bufsz = sizeof(buf); 467 int pos = 0; 468 469 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 470 mvm->disable_power_off); 471 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 472 mvm->disable_power_off_d3); 473 474 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 475 } 476 477 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 478 size_t count, loff_t *ppos) 479 { 480 int ret, val; 481 482 if (!iwl_mvm_firmware_running(mvm)) 483 return -EIO; 484 485 if (!strncmp("disable_power_off_d0=", buf, 21)) { 486 if (sscanf(buf + 21, "%d", &val) != 1) 487 return -EINVAL; 488 mvm->disable_power_off = val; 489 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 490 if (sscanf(buf + 21, "%d", &val) != 1) 491 return -EINVAL; 492 mvm->disable_power_off_d3 = val; 493 } else { 494 return -EINVAL; 495 } 496 497 mutex_lock(&mvm->mutex); 498 ret = iwl_mvm_power_update_device(mvm); 499 mutex_unlock(&mvm->mutex); 500 501 return ret ?: count; 502 } 503 504 static 505 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 506 int pos, int bufsz) 507 { 508 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 509 510 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 511 BT_MBOX_PRINT(0, LE_PROF1, false); 512 BT_MBOX_PRINT(0, LE_PROF2, false); 513 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 514 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 515 BT_MBOX_PRINT(0, INBAND_S, false); 516 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 517 BT_MBOX_PRINT(0, LE_SCAN, false); 518 BT_MBOX_PRINT(0, LE_ADV, false); 519 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 520 BT_MBOX_PRINT(0, OPEN_CON_1, true); 521 522 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 523 524 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 525 BT_MBOX_PRINT(1, IP_SR, false); 526 BT_MBOX_PRINT(1, LE_MSTR, false); 527 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 528 BT_MBOX_PRINT(1, MSG_TYPE, false); 529 BT_MBOX_PRINT(1, SSN, true); 530 531 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 532 533 BT_MBOX_PRINT(2, SNIFF_ACT, false); 534 BT_MBOX_PRINT(2, PAG, false); 535 BT_MBOX_PRINT(2, INQUIRY, false); 536 BT_MBOX_PRINT(2, CONN, false); 537 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 538 BT_MBOX_PRINT(2, DISC, false); 539 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 540 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 541 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 542 BT_MBOX_PRINT(2, SCO_DURATION, true); 543 544 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 545 546 BT_MBOX_PRINT(3, SCO_STATE, false); 547 BT_MBOX_PRINT(3, SNIFF_STATE, false); 548 BT_MBOX_PRINT(3, A2DP_STATE, false); 549 BT_MBOX_PRINT(3, A2DP_SRC, false); 550 BT_MBOX_PRINT(3, ACL_STATE, false); 551 BT_MBOX_PRINT(3, MSTR_STATE, false); 552 BT_MBOX_PRINT(3, OBX_STATE, false); 553 BT_MBOX_PRINT(3, OPEN_CON_2, false); 554 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 555 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 556 BT_MBOX_PRINT(3, INBAND_P, false); 557 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 558 BT_MBOX_PRINT(3, SSN_2, false); 559 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 560 561 return pos; 562 } 563 564 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 565 size_t count, loff_t *ppos) 566 { 567 struct iwl_mvm *mvm = file->private_data; 568 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 569 char *buf; 570 int ret, pos = 0, bufsz = sizeof(char) * 1024; 571 572 buf = kmalloc(bufsz, GFP_KERNEL); 573 if (!buf) 574 return -ENOMEM; 575 576 mutex_lock(&mvm->mutex); 577 578 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 579 580 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 581 notif->bt_ci_compliance); 582 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 583 le32_to_cpu(notif->primary_ch_lut)); 584 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 585 le32_to_cpu(notif->secondary_ch_lut)); 586 pos += scnprintf(buf + pos, 587 bufsz - pos, "bt_activity_grading = %d\n", 588 le32_to_cpu(notif->bt_activity_grading)); 589 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 590 notif->rrc_status & 0xF); 591 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 592 notif->ttc_status & 0xF); 593 594 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 595 IWL_MVM_BT_COEX_SYNC2SCO); 596 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 597 IWL_MVM_BT_COEX_MPLUT); 598 599 mutex_unlock(&mvm->mutex); 600 601 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 602 kfree(buf); 603 604 return ret; 605 } 606 #undef BT_MBOX_PRINT 607 608 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 609 size_t count, loff_t *ppos) 610 { 611 struct iwl_mvm *mvm = file->private_data; 612 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 613 char buf[256]; 614 int bufsz = sizeof(buf); 615 int pos = 0; 616 617 mutex_lock(&mvm->mutex); 618 619 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 620 pos += scnprintf(buf + pos, bufsz - pos, 621 "\tPrimary Channel Bitmap 0x%016llx\n", 622 le64_to_cpu(cmd->bt_primary_ci)); 623 pos += scnprintf(buf + pos, bufsz - pos, 624 "\tSecondary Channel Bitmap 0x%016llx\n", 625 le64_to_cpu(cmd->bt_secondary_ci)); 626 627 mutex_unlock(&mvm->mutex); 628 629 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 630 } 631 632 static ssize_t 633 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 634 size_t count, loff_t *ppos) 635 { 636 u32 bt_tx_prio; 637 638 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 639 return -EINVAL; 640 if (bt_tx_prio > 4) 641 return -EINVAL; 642 643 mvm->bt_tx_prio = bt_tx_prio; 644 645 return count; 646 } 647 648 static ssize_t 649 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 650 size_t count, loff_t *ppos) 651 { 652 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 653 [BT_FORCE_ANT_DIS] = "dis", 654 [BT_FORCE_ANT_AUTO] = "auto", 655 [BT_FORCE_ANT_BT] = "bt", 656 [BT_FORCE_ANT_WIFI] = "wifi", 657 }; 658 int ret, bt_force_ant_mode; 659 660 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 661 if (ret < 0) 662 return ret; 663 664 bt_force_ant_mode = ret; 665 ret = 0; 666 mutex_lock(&mvm->mutex); 667 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 668 goto out; 669 670 mvm->bt_force_ant_mode = bt_force_ant_mode; 671 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 672 modes_str[mvm->bt_force_ant_mode]); 673 674 if (iwl_mvm_firmware_running(mvm)) 675 ret = iwl_mvm_send_bt_init_conf(mvm); 676 else 677 ret = 0; 678 679 out: 680 mutex_unlock(&mvm->mutex); 681 return ret ?: count; 682 } 683 684 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 685 size_t count, loff_t *ppos) 686 { 687 struct iwl_mvm *mvm = file->private_data; 688 char *buff, *pos, *endpos; 689 static const size_t bufsz = 1024; 690 int ret; 691 692 buff = kmalloc(bufsz, GFP_KERNEL); 693 if (!buff) 694 return -ENOMEM; 695 696 pos = buff; 697 endpos = pos + bufsz; 698 699 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 700 mvm->trans->cfg->fw_name_pre); 701 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 702 mvm->fwrt.fw->human_readable); 703 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 704 mvm->fwrt.trans->name); 705 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 706 mvm->fwrt.dev->bus->name); 707 708 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 709 kfree(buff); 710 711 return ret; 712 } 713 714 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 715 char __user *user_buf, 716 size_t count, loff_t *ppos) 717 { 718 struct iwl_mvm *mvm = file->private_data; 719 char *buf; 720 size_t bufsz; 721 int pos; 722 ssize_t ret; 723 724 bufsz = mvm->fw->phy_integration_ver_len + 2; 725 buf = kmalloc(bufsz, GFP_KERNEL); 726 if (!buf) 727 return -ENOMEM; 728 729 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 730 mvm->fw->phy_integration_ver); 731 732 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 733 734 kfree(buf); 735 return ret; 736 } 737 738 #define PRINT_STATS_LE32(_struct, _memb) \ 739 pos += scnprintf(buf + pos, bufsz - pos, \ 740 fmt_table, #_memb, \ 741 le32_to_cpu(_struct->_memb)) 742 743 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 744 char __user *user_buf, size_t count, 745 loff_t *ppos) 746 { 747 struct iwl_mvm *mvm = file->private_data; 748 static const char *fmt_table = "\t%-30s %10u\n"; 749 static const char *fmt_header = "%-32s\n"; 750 int pos = 0; 751 char *buf; 752 int ret; 753 size_t bufsz; 754 755 if (iwl_mvm_has_new_rx_stats_api(mvm)) 756 bufsz = ((sizeof(struct mvm_statistics_rx) / 757 sizeof(__le32)) * 43) + (4 * 33) + 1; 758 else 759 /* 43 = size of each data line; 33 = size of each header */ 760 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 761 sizeof(__le32)) * 43) + (4 * 33) + 1; 762 763 buf = kzalloc(bufsz, GFP_KERNEL); 764 if (!buf) 765 return -ENOMEM; 766 767 mutex_lock(&mvm->mutex); 768 769 if (iwl_mvm_firmware_running(mvm)) 770 iwl_mvm_request_statistics(mvm, false); 771 772 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 773 "Statistics_Rx - OFDM"); 774 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 775 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 776 777 PRINT_STATS_LE32(ofdm, ina_cnt); 778 PRINT_STATS_LE32(ofdm, fina_cnt); 779 PRINT_STATS_LE32(ofdm, plcp_err); 780 PRINT_STATS_LE32(ofdm, crc32_err); 781 PRINT_STATS_LE32(ofdm, overrun_err); 782 PRINT_STATS_LE32(ofdm, early_overrun_err); 783 PRINT_STATS_LE32(ofdm, crc32_good); 784 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 785 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 786 PRINT_STATS_LE32(ofdm, sfd_timeout); 787 PRINT_STATS_LE32(ofdm, fina_timeout); 788 PRINT_STATS_LE32(ofdm, unresponded_rts); 789 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 790 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 791 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 792 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 793 PRINT_STATS_LE32(ofdm, dsp_self_kill); 794 PRINT_STATS_LE32(ofdm, mh_format_err); 795 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 796 PRINT_STATS_LE32(ofdm, reserved); 797 } else { 798 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 799 800 PRINT_STATS_LE32(ofdm, unresponded_rts); 801 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 802 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 803 PRINT_STATS_LE32(ofdm, dsp_self_kill); 804 PRINT_STATS_LE32(ofdm, reserved); 805 } 806 807 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 808 "Statistics_Rx - CCK"); 809 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 810 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 811 812 PRINT_STATS_LE32(cck, ina_cnt); 813 PRINT_STATS_LE32(cck, fina_cnt); 814 PRINT_STATS_LE32(cck, plcp_err); 815 PRINT_STATS_LE32(cck, crc32_err); 816 PRINT_STATS_LE32(cck, overrun_err); 817 PRINT_STATS_LE32(cck, early_overrun_err); 818 PRINT_STATS_LE32(cck, crc32_good); 819 PRINT_STATS_LE32(cck, false_alarm_cnt); 820 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 821 PRINT_STATS_LE32(cck, sfd_timeout); 822 PRINT_STATS_LE32(cck, fina_timeout); 823 PRINT_STATS_LE32(cck, unresponded_rts); 824 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 825 PRINT_STATS_LE32(cck, sent_ack_cnt); 826 PRINT_STATS_LE32(cck, sent_cts_cnt); 827 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 828 PRINT_STATS_LE32(cck, dsp_self_kill); 829 PRINT_STATS_LE32(cck, mh_format_err); 830 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 831 PRINT_STATS_LE32(cck, reserved); 832 } else { 833 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 834 835 PRINT_STATS_LE32(cck, unresponded_rts); 836 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 837 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 838 PRINT_STATS_LE32(cck, dsp_self_kill); 839 PRINT_STATS_LE32(cck, reserved); 840 } 841 842 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 843 "Statistics_Rx - GENERAL"); 844 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 845 struct mvm_statistics_rx_non_phy_v3 *general = 846 &mvm->rx_stats_v3.general; 847 848 PRINT_STATS_LE32(general, bogus_cts); 849 PRINT_STATS_LE32(general, bogus_ack); 850 PRINT_STATS_LE32(general, non_bssid_frames); 851 PRINT_STATS_LE32(general, filtered_frames); 852 PRINT_STATS_LE32(general, non_channel_beacons); 853 PRINT_STATS_LE32(general, channel_beacons); 854 PRINT_STATS_LE32(general, num_missed_bcon); 855 PRINT_STATS_LE32(general, adc_rx_saturation_time); 856 PRINT_STATS_LE32(general, ina_detection_search_time); 857 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 858 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 859 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 860 PRINT_STATS_LE32(general, interference_data_flag); 861 PRINT_STATS_LE32(general, channel_load); 862 PRINT_STATS_LE32(general, dsp_false_alarms); 863 PRINT_STATS_LE32(general, beacon_rssi_a); 864 PRINT_STATS_LE32(general, beacon_rssi_b); 865 PRINT_STATS_LE32(general, beacon_rssi_c); 866 PRINT_STATS_LE32(general, beacon_energy_a); 867 PRINT_STATS_LE32(general, beacon_energy_b); 868 PRINT_STATS_LE32(general, beacon_energy_c); 869 PRINT_STATS_LE32(general, num_bt_kills); 870 PRINT_STATS_LE32(general, mac_id); 871 PRINT_STATS_LE32(general, directed_data_mpdu); 872 } else { 873 struct mvm_statistics_rx_non_phy *general = 874 &mvm->rx_stats.general; 875 876 PRINT_STATS_LE32(general, bogus_cts); 877 PRINT_STATS_LE32(general, bogus_ack); 878 PRINT_STATS_LE32(general, non_channel_beacons); 879 PRINT_STATS_LE32(general, channel_beacons); 880 PRINT_STATS_LE32(general, num_missed_bcon); 881 PRINT_STATS_LE32(general, adc_rx_saturation_time); 882 PRINT_STATS_LE32(general, ina_detection_search_time); 883 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 884 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 885 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 886 PRINT_STATS_LE32(general, interference_data_flag); 887 PRINT_STATS_LE32(general, channel_load); 888 PRINT_STATS_LE32(general, beacon_rssi_a); 889 PRINT_STATS_LE32(general, beacon_rssi_b); 890 PRINT_STATS_LE32(general, beacon_rssi_c); 891 PRINT_STATS_LE32(general, beacon_energy_a); 892 PRINT_STATS_LE32(general, beacon_energy_b); 893 PRINT_STATS_LE32(general, beacon_energy_c); 894 PRINT_STATS_LE32(general, num_bt_kills); 895 PRINT_STATS_LE32(general, mac_id); 896 } 897 898 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 899 "Statistics_Rx - HT"); 900 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 901 struct mvm_statistics_rx_ht_phy_v1 *ht = 902 &mvm->rx_stats_v3.ofdm_ht; 903 904 PRINT_STATS_LE32(ht, plcp_err); 905 PRINT_STATS_LE32(ht, overrun_err); 906 PRINT_STATS_LE32(ht, early_overrun_err); 907 PRINT_STATS_LE32(ht, crc32_good); 908 PRINT_STATS_LE32(ht, crc32_err); 909 PRINT_STATS_LE32(ht, mh_format_err); 910 PRINT_STATS_LE32(ht, agg_crc32_good); 911 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 912 PRINT_STATS_LE32(ht, agg_cnt); 913 PRINT_STATS_LE32(ht, unsupport_mcs); 914 } else { 915 struct mvm_statistics_rx_ht_phy *ht = 916 &mvm->rx_stats.ofdm_ht; 917 918 PRINT_STATS_LE32(ht, mh_format_err); 919 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 920 PRINT_STATS_LE32(ht, agg_cnt); 921 PRINT_STATS_LE32(ht, unsupport_mcs); 922 } 923 924 mutex_unlock(&mvm->mutex); 925 926 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 927 kfree(buf); 928 929 return ret; 930 } 931 #undef PRINT_STAT_LE32 932 933 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 934 char __user *user_buf, size_t count, 935 loff_t *ppos, 936 struct iwl_mvm_frame_stats *stats) 937 { 938 char *buff, *pos, *endpos; 939 int idx, i; 940 int ret; 941 static const size_t bufsz = 1024; 942 943 buff = kmalloc(bufsz, GFP_KERNEL); 944 if (!buff) 945 return -ENOMEM; 946 947 spin_lock_bh(&mvm->drv_stats_lock); 948 949 pos = buff; 950 endpos = pos + bufsz; 951 952 pos += scnprintf(pos, endpos - pos, 953 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 954 stats->legacy_frames, 955 stats->ht_frames, 956 stats->vht_frames); 957 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 958 stats->bw_20_frames, 959 stats->bw_40_frames, 960 stats->bw_80_frames); 961 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 962 stats->ngi_frames, 963 stats->sgi_frames); 964 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 965 stats->siso_frames, 966 stats->mimo2_frames); 967 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 968 stats->fail_frames, 969 stats->success_frames); 970 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 971 stats->agg_frames); 972 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 973 stats->ampdu_count); 974 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 975 stats->ampdu_count > 0 ? 976 (stats->agg_frames / stats->ampdu_count) : 0); 977 978 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 979 980 idx = stats->last_frame_idx - 1; 981 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 982 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 983 if (stats->last_rates[idx] == 0) 984 continue; 985 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 986 (int)(ARRAY_SIZE(stats->last_rates) - i)); 987 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 988 stats->last_rates[idx]); 989 if (pos < endpos - 1) 990 *pos++ = '\n'; 991 } 992 spin_unlock_bh(&mvm->drv_stats_lock); 993 994 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 995 kfree(buff); 996 997 return ret; 998 } 999 1000 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1001 char __user *user_buf, size_t count, 1002 loff_t *ppos) 1003 { 1004 struct iwl_mvm *mvm = file->private_data; 1005 1006 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1007 &mvm->drv_rx_stats); 1008 } 1009 1010 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1011 size_t count, loff_t *ppos) 1012 { 1013 int __maybe_unused ret; 1014 1015 if (!iwl_mvm_firmware_running(mvm)) 1016 return -EIO; 1017 1018 mutex_lock(&mvm->mutex); 1019 1020 /* allow one more restart that we're provoking here */ 1021 if (mvm->fw_restart >= 0) 1022 mvm->fw_restart++; 1023 1024 if (count == 6 && !strcmp(buf, "nolog\n")) { 1025 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1026 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1027 } 1028 1029 /* take the return value to make compiler happy - it will fail anyway */ 1030 ret = iwl_mvm_send_cmd_pdu(mvm, 1031 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1032 0, 0, NULL); 1033 1034 mutex_unlock(&mvm->mutex); 1035 1036 return count; 1037 } 1038 1039 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1040 size_t count, loff_t *ppos) 1041 { 1042 if (!iwl_mvm_firmware_running(mvm)) 1043 return -EIO; 1044 1045 if (count == 6 && !strcmp(buf, "nolog\n")) 1046 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1047 1048 iwl_force_nmi(mvm->trans); 1049 1050 return count; 1051 } 1052 1053 static ssize_t 1054 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1055 char __user *user_buf, 1056 size_t count, loff_t *ppos) 1057 { 1058 struct iwl_mvm *mvm = file->private_data; 1059 int pos = 0; 1060 char buf[32]; 1061 const size_t bufsz = sizeof(buf); 1062 1063 /* print which antennas were set for the scan command by the user */ 1064 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1065 if (mvm->scan_rx_ant & ANT_A) 1066 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1067 if (mvm->scan_rx_ant & ANT_B) 1068 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1069 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1070 1071 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1072 } 1073 1074 static ssize_t 1075 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1076 size_t count, loff_t *ppos) 1077 { 1078 u8 scan_rx_ant; 1079 1080 if (!iwl_mvm_firmware_running(mvm)) 1081 return -EIO; 1082 1083 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1084 return -EINVAL; 1085 if (scan_rx_ant > ANT_ABC) 1086 return -EINVAL; 1087 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1088 return -EINVAL; 1089 1090 if (mvm->scan_rx_ant != scan_rx_ant) { 1091 mvm->scan_rx_ant = scan_rx_ant; 1092 if (fw_has_capa(&mvm->fw->ucode_capa, 1093 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1094 iwl_mvm_config_scan(mvm); 1095 } 1096 1097 return count; 1098 } 1099 1100 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1101 char *buf, size_t count, 1102 loff_t *ppos) 1103 { 1104 struct iwl_rss_config_cmd cmd = { 1105 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1106 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1107 IWL_RSS_HASH_TYPE_IPV4_UDP | 1108 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1109 IWL_RSS_HASH_TYPE_IPV6_TCP | 1110 IWL_RSS_HASH_TYPE_IPV6_UDP | 1111 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1112 }; 1113 int ret, i, num_repeats, nbytes = count / 2; 1114 1115 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1116 if (ret) 1117 return ret; 1118 1119 /* 1120 * The input is the redirection table, partial or full. 1121 * Repeat the pattern if needed. 1122 * For example, input of 01020F will be repeated 42 times, 1123 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1124 * queues 3 - 14). 1125 */ 1126 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1127 for (i = 1; i < num_repeats; i++) 1128 memcpy(&cmd.indirection_table[i * nbytes], 1129 cmd.indirection_table, nbytes); 1130 /* handle cut in the middle pattern for the last places */ 1131 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1132 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1133 1134 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1135 1136 mutex_lock(&mvm->mutex); 1137 if (iwl_mvm_firmware_running(mvm)) 1138 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1139 sizeof(cmd), &cmd); 1140 else 1141 ret = 0; 1142 mutex_unlock(&mvm->mutex); 1143 1144 return ret ?: count; 1145 } 1146 1147 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1148 char *buf, size_t count, 1149 loff_t *ppos) 1150 { 1151 struct iwl_op_mode *opmode = container_of((void *)mvm, 1152 struct iwl_op_mode, 1153 op_mode_specific); 1154 struct iwl_rx_cmd_buffer rxb = { 1155 ._rx_page_order = 0, 1156 .truesize = 0, /* not used */ 1157 ._offset = 0, 1158 }; 1159 struct iwl_rx_packet *pkt; 1160 int bin_len = count / 2; 1161 int ret = -EINVAL; 1162 1163 if (!iwl_mvm_firmware_running(mvm)) 1164 return -EIO; 1165 1166 /* supporting only MQ RX */ 1167 if (!mvm->trans->trans_cfg->mq_rx_supported) 1168 return -ENOTSUPP; 1169 1170 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1171 if (!rxb._page) 1172 return -ENOMEM; 1173 pkt = rxb_addr(&rxb); 1174 1175 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1176 if (ret) 1177 goto out; 1178 1179 /* avoid invalid memory access and malformed packet */ 1180 if (bin_len < sizeof(*pkt) || 1181 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1182 goto out; 1183 1184 local_bh_disable(); 1185 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1186 local_bh_enable(); 1187 ret = 0; 1188 1189 out: 1190 iwl_free_rxb(&rxb); 1191 1192 return ret ?: count; 1193 } 1194 1195 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1196 { 1197 struct ieee80211_vif *vif; 1198 struct iwl_mvm_vif *mvmvif; 1199 struct sk_buff *beacon; 1200 struct ieee80211_tx_info *info; 1201 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1202 u8 rate; 1203 int i; 1204 1205 len /= 2; 1206 1207 /* Element len should be represented by u8 */ 1208 if (len >= U8_MAX) 1209 return -EINVAL; 1210 1211 if (!iwl_mvm_firmware_running(mvm)) 1212 return -EIO; 1213 1214 if (!iwl_mvm_has_new_tx_api(mvm) && 1215 !fw_has_api(&mvm->fw->ucode_capa, 1216 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1217 return -EINVAL; 1218 1219 mutex_lock(&mvm->mutex); 1220 1221 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1222 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1223 if (!vif) 1224 continue; 1225 1226 if (vif->type == NL80211_IFTYPE_AP) 1227 break; 1228 } 1229 1230 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1231 goto out_err; 1232 1233 mvm->hw->extra_beacon_tailroom = len; 1234 1235 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1236 if (!beacon) 1237 goto out_err; 1238 1239 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1240 dev_kfree_skb(beacon); 1241 goto out_err; 1242 } 1243 1244 mvm->beacon_inject_active = true; 1245 1246 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1247 info = IEEE80211_SKB_CB(beacon); 1248 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 1249 1250 beacon_cmd.flags = 1251 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate)); 1252 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1253 beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 1254 1255 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1256 &beacon_cmd.tim_size, 1257 beacon->data, beacon->len); 1258 1259 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1260 sizeof(beacon_cmd)); 1261 mutex_unlock(&mvm->mutex); 1262 1263 dev_kfree_skb(beacon); 1264 1265 return 0; 1266 1267 out_err: 1268 mutex_unlock(&mvm->mutex); 1269 return -EINVAL; 1270 } 1271 1272 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1273 char *buf, size_t count, 1274 loff_t *ppos) 1275 { 1276 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1277 1278 mvm->hw->extra_beacon_tailroom = 0; 1279 return ret ?: count; 1280 } 1281 1282 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1283 char *buf, 1284 size_t count, 1285 loff_t *ppos) 1286 { 1287 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1288 1289 mvm->hw->extra_beacon_tailroom = 0; 1290 mvm->beacon_inject_active = false; 1291 return ret ?: count; 1292 } 1293 1294 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1295 char __user *user_buf, 1296 size_t count, loff_t *ppos) 1297 { 1298 struct iwl_mvm *mvm = file->private_data; 1299 int conf; 1300 char buf[8]; 1301 const size_t bufsz = sizeof(buf); 1302 int pos = 0; 1303 1304 mutex_lock(&mvm->mutex); 1305 conf = mvm->fwrt.dump.conf; 1306 mutex_unlock(&mvm->mutex); 1307 1308 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1309 1310 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1311 } 1312 1313 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1314 char *buf, size_t count, 1315 loff_t *ppos) 1316 { 1317 unsigned int conf_id; 1318 int ret; 1319 1320 if (!iwl_mvm_firmware_running(mvm)) 1321 return -EIO; 1322 1323 ret = kstrtouint(buf, 0, &conf_id); 1324 if (ret) 1325 return ret; 1326 1327 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1328 return -EINVAL; 1329 1330 mutex_lock(&mvm->mutex); 1331 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1332 mutex_unlock(&mvm->mutex); 1333 1334 return ret ?: count; 1335 } 1336 1337 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1338 char *buf, size_t count, 1339 loff_t *ppos) 1340 { 1341 if (count == 0) 1342 return 0; 1343 1344 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1345 NULL); 1346 1347 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1348 (count - 1), NULL); 1349 1350 return count; 1351 } 1352 1353 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1354 char *buf, size_t count, 1355 loff_t *ppos) 1356 { 1357 u32 timepoint; 1358 1359 if (kstrtou32(buf, 0, &timepoint)) 1360 return -EINVAL; 1361 1362 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1363 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1364 return -EINVAL; 1365 1366 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1367 1368 return count; 1369 } 1370 1371 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1372 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1373 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1374 char __user *user_buf, 1375 size_t count, loff_t *ppos) 1376 { 1377 struct iwl_mvm *mvm = file->private_data; 1378 struct iwl_bcast_filter_cmd cmd; 1379 const struct iwl_fw_bcast_filter *filter; 1380 char *buf; 1381 int bufsz = 1024; 1382 int i, j, pos = 0; 1383 ssize_t ret; 1384 1385 buf = kzalloc(bufsz, GFP_KERNEL); 1386 if (!buf) 1387 return -ENOMEM; 1388 1389 mutex_lock(&mvm->mutex); 1390 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1391 ADD_TEXT("None\n"); 1392 mutex_unlock(&mvm->mutex); 1393 goto out; 1394 } 1395 mutex_unlock(&mvm->mutex); 1396 1397 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1398 filter = &cmd.filters[i]; 1399 1400 ADD_TEXT("Filter [%d]:\n", i); 1401 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1402 ADD_TEXT("\tFrame Type: %s\n", 1403 filter->frame_type ? "IPv4" : "Generic"); 1404 1405 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1406 const struct iwl_fw_bcast_filter_attr *attr; 1407 1408 attr = &filter->attrs[j]; 1409 if (!attr->mask) 1410 break; 1411 1412 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1413 j, attr->offset, 1414 attr->offset_type ? "IP End" : 1415 "Payload Start", 1416 be32_to_cpu(attr->mask), 1417 be32_to_cpu(attr->val), 1418 le16_to_cpu(attr->reserved1)); 1419 } 1420 } 1421 out: 1422 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1423 kfree(buf); 1424 return ret; 1425 } 1426 1427 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1428 size_t count, loff_t *ppos) 1429 { 1430 int pos, next_pos; 1431 struct iwl_fw_bcast_filter filter = {}; 1432 struct iwl_bcast_filter_cmd cmd; 1433 u32 filter_id, attr_id, mask, value; 1434 int err = 0; 1435 1436 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1437 &filter.frame_type, &pos) != 3) 1438 return -EINVAL; 1439 1440 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1441 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1442 return -EINVAL; 1443 1444 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1445 attr_id++) { 1446 struct iwl_fw_bcast_filter_attr *attr = 1447 &filter.attrs[attr_id]; 1448 1449 if (pos >= count) 1450 break; 1451 1452 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1453 &attr->offset, &attr->offset_type, 1454 &mask, &value, &next_pos) != 4) 1455 return -EINVAL; 1456 1457 attr->mask = cpu_to_be32(mask); 1458 attr->val = cpu_to_be32(value); 1459 if (mask) 1460 filter.num_attrs++; 1461 1462 pos += next_pos; 1463 } 1464 1465 mutex_lock(&mvm->mutex); 1466 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1467 &filter, sizeof(filter)); 1468 1469 /* send updated bcast filtering configuration */ 1470 if (iwl_mvm_firmware_running(mvm) && 1471 mvm->dbgfs_bcast_filtering.override && 1472 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1473 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1474 sizeof(cmd), &cmd); 1475 mutex_unlock(&mvm->mutex); 1476 1477 return err ?: count; 1478 } 1479 1480 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1481 char __user *user_buf, 1482 size_t count, loff_t *ppos) 1483 { 1484 struct iwl_mvm *mvm = file->private_data; 1485 struct iwl_bcast_filter_cmd cmd; 1486 char *buf; 1487 int bufsz = 1024; 1488 int i, pos = 0; 1489 ssize_t ret; 1490 1491 buf = kzalloc(bufsz, GFP_KERNEL); 1492 if (!buf) 1493 return -ENOMEM; 1494 1495 mutex_lock(&mvm->mutex); 1496 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1497 ADD_TEXT("None\n"); 1498 mutex_unlock(&mvm->mutex); 1499 goto out; 1500 } 1501 mutex_unlock(&mvm->mutex); 1502 1503 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1504 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1505 1506 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1507 i, mac->default_discard, mac->attached_filters); 1508 } 1509 out: 1510 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1511 kfree(buf); 1512 return ret; 1513 } 1514 1515 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1516 char *buf, size_t count, 1517 loff_t *ppos) 1518 { 1519 struct iwl_bcast_filter_cmd cmd; 1520 struct iwl_fw_bcast_mac mac = {}; 1521 u32 mac_id, attached_filters; 1522 int err = 0; 1523 1524 if (!mvm->bcast_filters) 1525 return -ENOENT; 1526 1527 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1528 &attached_filters) != 3) 1529 return -EINVAL; 1530 1531 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1532 mac.default_discard > 1 || 1533 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1534 return -EINVAL; 1535 1536 mac.attached_filters = cpu_to_le16(attached_filters); 1537 1538 mutex_lock(&mvm->mutex); 1539 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1540 &mac, sizeof(mac)); 1541 1542 /* send updated bcast filtering configuration */ 1543 if (iwl_mvm_firmware_running(mvm) && 1544 mvm->dbgfs_bcast_filtering.override && 1545 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1546 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1547 sizeof(cmd), &cmd); 1548 mutex_unlock(&mvm->mutex); 1549 1550 return err ?: count; 1551 } 1552 #endif 1553 1554 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1555 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1556 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1557 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1558 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1559 debugfs_create_file(alias, mode, parent, mvm, \ 1560 &iwl_dbgfs_##name##_ops); \ 1561 } while (0) 1562 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1563 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1564 1565 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1566 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1567 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1568 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1569 1570 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1571 debugfs_create_file(alias, mode, parent, sta, \ 1572 &iwl_dbgfs_##name##_ops); \ 1573 } while (0) 1574 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1575 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1576 1577 static ssize_t 1578 iwl_dbgfs_prph_reg_read(struct file *file, 1579 char __user *user_buf, 1580 size_t count, loff_t *ppos) 1581 { 1582 struct iwl_mvm *mvm = file->private_data; 1583 int pos = 0; 1584 char buf[32]; 1585 const size_t bufsz = sizeof(buf); 1586 1587 if (!mvm->dbgfs_prph_reg_addr) 1588 return -EINVAL; 1589 1590 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1591 mvm->dbgfs_prph_reg_addr, 1592 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1593 1594 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1595 } 1596 1597 static ssize_t 1598 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1599 size_t count, loff_t *ppos) 1600 { 1601 u8 args; 1602 u32 value; 1603 1604 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1605 /* if we only want to set the reg address - nothing more to do */ 1606 if (args == 1) 1607 goto out; 1608 1609 /* otherwise, make sure we have both address and value */ 1610 if (args != 2) 1611 return -EINVAL; 1612 1613 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1614 1615 out: 1616 return count; 1617 } 1618 1619 static ssize_t 1620 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1621 size_t count, loff_t *ppos) 1622 { 1623 int ret; 1624 1625 if (!iwl_mvm_firmware_running(mvm)) 1626 return -EIO; 1627 1628 mutex_lock(&mvm->mutex); 1629 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1630 mutex_unlock(&mvm->mutex); 1631 1632 return ret ?: count; 1633 } 1634 1635 struct iwl_mvm_sniffer_apply { 1636 struct iwl_mvm *mvm; 1637 u8 *bssid; 1638 u16 aid; 1639 }; 1640 1641 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1642 struct iwl_rx_packet *pkt, void *data) 1643 { 1644 struct iwl_mvm_sniffer_apply *apply = data; 1645 1646 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1647 memcpy(apply->mvm->cur_bssid, apply->bssid, 1648 sizeof(apply->mvm->cur_bssid)); 1649 1650 return true; 1651 } 1652 1653 static ssize_t 1654 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1655 size_t count, loff_t *ppos) 1656 { 1657 struct iwl_notification_wait wait; 1658 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1659 struct iwl_mvm_sniffer_apply apply = { 1660 .mvm = mvm, 1661 }; 1662 u16 wait_cmds[] = { 1663 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1664 }; 1665 u32 aid; 1666 int ret; 1667 1668 if (!iwl_mvm_firmware_running(mvm)) 1669 return -EIO; 1670 1671 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1672 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1673 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1674 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1675 if (ret != 7) 1676 return -EINVAL; 1677 1678 he_mon_cmd.aid = cpu_to_le16(aid); 1679 1680 apply.aid = aid; 1681 apply.bssid = (void *)he_mon_cmd.bssid; 1682 1683 mutex_lock(&mvm->mutex); 1684 1685 /* 1686 * Use the notification waiter to get our function triggered 1687 * in sequence with other RX. This ensures that frames we get 1688 * on the RX queue _before_ the new configuration is applied 1689 * still have mvm->cur_aid pointing to the old AID, and that 1690 * frames on the RX queue _after_ the firmware processed the 1691 * new configuration (and sent the response, synchronously) 1692 * get mvm->cur_aid correctly set to the new AID. 1693 */ 1694 iwl_init_notification_wait(&mvm->notif_wait, &wait, 1695 wait_cmds, ARRAY_SIZE(wait_cmds), 1696 iwl_mvm_sniffer_apply, &apply); 1697 1698 ret = iwl_mvm_send_cmd_pdu(mvm, 1699 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1700 0, 1701 sizeof(he_mon_cmd), &he_mon_cmd); 1702 1703 /* no need to really wait, we already did anyway */ 1704 iwl_remove_notification(&mvm->notif_wait, &wait); 1705 1706 mutex_unlock(&mvm->mutex); 1707 1708 return ret ?: count; 1709 } 1710 1711 static ssize_t 1712 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 1713 size_t count, loff_t *ppos) 1714 { 1715 struct iwl_mvm *mvm = file->private_data; 1716 u8 buf[32]; 1717 int len; 1718 1719 len = scnprintf(buf, sizeof(buf), 1720 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 1721 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 1722 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 1723 mvm->cur_bssid[4], mvm->cur_bssid[5]); 1724 1725 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1726 } 1727 1728 static ssize_t 1729 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1730 size_t count, loff_t *ppos) 1731 { 1732 struct iwl_mvm *mvm = file->private_data; 1733 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1734 unsigned int pos = 0; 1735 size_t bufsz = sizeof(buf); 1736 int i; 1737 1738 mutex_lock(&mvm->mutex); 1739 1740 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1741 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1742 mvm->uapsd_noagg_bssids[i].addr); 1743 1744 mutex_unlock(&mvm->mutex); 1745 1746 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1747 } 1748 1749 static ssize_t 1750 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 1751 char *buf, size_t count, loff_t *ppos) 1752 { 1753 int ret; 1754 struct iwl_ltr_config_cmd ltr_config = {0}; 1755 1756 if (!iwl_mvm_firmware_running(mvm)) 1757 return -EIO; 1758 1759 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 1760 <r_config.flags, 1761 <r_config.static_long, 1762 <r_config.static_short, 1763 <r_config.ltr_cfg_values[0], 1764 <r_config.ltr_cfg_values[1], 1765 <r_config.ltr_cfg_values[2], 1766 <r_config.ltr_cfg_values[3]) != 7) { 1767 return -EINVAL; 1768 } 1769 1770 mutex_lock(&mvm->mutex); 1771 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 1772 <r_config); 1773 mutex_unlock(&mvm->mutex); 1774 1775 if (ret) 1776 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 1777 1778 return ret ?: count; 1779 } 1780 1781 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 1782 size_t count, loff_t *ppos) 1783 { 1784 int ret = 0; 1785 u16 op_id; 1786 1787 if (kstrtou16(buf, 10, &op_id)) 1788 return -EINVAL; 1789 1790 /* value zero triggers re-sending the default table to the device */ 1791 if (!op_id) { 1792 mutex_lock(&mvm->mutex); 1793 ret = iwl_rfi_send_config_cmd(mvm, NULL); 1794 mutex_unlock(&mvm->mutex); 1795 } else { 1796 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 1797 } 1798 1799 return ret ?: count; 1800 } 1801 1802 /* The size computation is as follows: 1803 * each number needs at most 3 characters, number of rows is the size of 1804 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 1805 * needs 6 characters for numbers and 5 for the punctuation around. 1806 */ 1807 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 1808 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 1809 1810 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 1811 char __user *user_buf, 1812 size_t count, loff_t *ppos) 1813 { 1814 struct iwl_mvm *mvm = file->private_data; 1815 struct iwl_rfi_freq_table_resp_cmd *resp; 1816 u32 status; 1817 char buf[IWL_RFI_BUF_SIZE]; 1818 int i, j, pos = 0; 1819 1820 resp = iwl_rfi_get_freq_table(mvm); 1821 if (IS_ERR(resp)) 1822 return PTR_ERR(resp); 1823 1824 status = le32_to_cpu(resp->status); 1825 if (status != RFI_FREQ_TABLE_OK) { 1826 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 1827 goto out; 1828 } 1829 1830 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 1831 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 1832 resp->table[i].freq); 1833 1834 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 1835 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 1836 "(%d, %d) ", 1837 resp->table[i].channels[j], 1838 resp->table[i].bands[j]); 1839 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 1840 } 1841 1842 out: 1843 kfree(resp); 1844 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1845 } 1846 1847 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1848 1849 /* Device wide debugfs entries */ 1850 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1851 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1852 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1853 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1854 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1855 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1856 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1857 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1858 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1859 MVM_DEBUGFS_READ_FILE_OPS(stations); 1860 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1861 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1862 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1863 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1864 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1865 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1866 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1867 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 1868 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1869 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1870 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1871 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1872 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1873 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1874 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1875 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 1876 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1877 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1878 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1879 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 1880 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 1881 1882 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1883 1884 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1885 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1886 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1887 #endif 1888 1889 #ifdef CONFIG_ACPI 1890 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1891 #endif 1892 1893 MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16); 1894 1895 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 1896 1897 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 1898 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 1899 1900 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1901 size_t count, loff_t *ppos) 1902 { 1903 struct iwl_mvm *mvm = file->private_data; 1904 struct iwl_dbg_mem_access_cmd cmd = {}; 1905 struct iwl_dbg_mem_access_rsp *rsp; 1906 struct iwl_host_cmd hcmd = { 1907 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1908 .data = { &cmd, }, 1909 .len = { sizeof(cmd) }, 1910 }; 1911 size_t delta; 1912 ssize_t ret, len; 1913 1914 if (!iwl_mvm_firmware_running(mvm)) 1915 return -EIO; 1916 1917 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1918 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1919 1920 /* Take care of alignment of both the position and the length */ 1921 delta = *ppos & 0x3; 1922 cmd.addr = cpu_to_le32(*ppos - delta); 1923 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1924 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1925 1926 mutex_lock(&mvm->mutex); 1927 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1928 mutex_unlock(&mvm->mutex); 1929 1930 if (ret < 0) 1931 return ret; 1932 1933 rsp = (void *)hcmd.resp_pkt->data; 1934 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1935 ret = -ENXIO; 1936 goto out; 1937 } 1938 1939 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1940 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1941 len = min(len - delta, count); 1942 if (len < 0) { 1943 ret = -EFAULT; 1944 goto out; 1945 } 1946 1947 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 1948 *ppos += ret; 1949 1950 out: 1951 iwl_free_resp(&hcmd); 1952 return ret; 1953 } 1954 1955 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1956 const char __user *user_buf, size_t count, 1957 loff_t *ppos) 1958 { 1959 struct iwl_mvm *mvm = file->private_data; 1960 struct iwl_dbg_mem_access_cmd *cmd; 1961 struct iwl_dbg_mem_access_rsp *rsp; 1962 struct iwl_host_cmd hcmd = {}; 1963 size_t cmd_size; 1964 size_t data_size; 1965 u32 op, len; 1966 ssize_t ret; 1967 1968 if (!iwl_mvm_firmware_running(mvm)) 1969 return -EIO; 1970 1971 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1972 1973 if (*ppos & 0x3 || count < 4) { 1974 op = DEBUG_MEM_OP_WRITE_BYTES; 1975 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1976 data_size = len; 1977 } else { 1978 op = DEBUG_MEM_OP_WRITE; 1979 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1980 data_size = len << 2; 1981 } 1982 1983 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1984 cmd = kzalloc(cmd_size, GFP_KERNEL); 1985 if (!cmd) 1986 return -ENOMEM; 1987 1988 cmd->op = cpu_to_le32(op); 1989 cmd->len = cpu_to_le32(len); 1990 cmd->addr = cpu_to_le32(*ppos); 1991 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1992 kfree(cmd); 1993 return -EFAULT; 1994 } 1995 1996 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1997 hcmd.data[0] = (void *)cmd; 1998 hcmd.len[0] = cmd_size; 1999 2000 mutex_lock(&mvm->mutex); 2001 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2002 mutex_unlock(&mvm->mutex); 2003 2004 kfree(cmd); 2005 2006 if (ret < 0) 2007 return ret; 2008 2009 rsp = (void *)hcmd.resp_pkt->data; 2010 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 2011 ret = -ENXIO; 2012 goto out; 2013 } 2014 2015 ret = data_size; 2016 *ppos += ret; 2017 2018 out: 2019 iwl_free_resp(&hcmd); 2020 return ret; 2021 } 2022 2023 static const struct file_operations iwl_dbgfs_mem_ops = { 2024 .read = iwl_dbgfs_mem_read, 2025 .write = iwl_dbgfs_mem_write, 2026 .open = simple_open, 2027 .llseek = default_llseek, 2028 }; 2029 2030 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 2031 struct ieee80211_vif *vif, 2032 struct ieee80211_sta *sta, 2033 struct dentry *dir) 2034 { 2035 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2036 2037 if (iwl_mvm_has_tlc_offload(mvm)) { 2038 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 2039 } 2040 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600); 2041 } 2042 2043 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 2044 { 2045 struct dentry *bcast_dir __maybe_unused; 2046 char buf[100]; 2047 2048 spin_lock_init(&mvm->drv_stats_lock); 2049 2050 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 2051 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 2052 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 2053 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 2054 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 2055 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 2056 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 2057 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 2058 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 2059 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 2060 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 2061 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 2062 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 2063 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 2064 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 2065 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 2066 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 2067 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 2068 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 2069 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 2070 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 2071 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 2072 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 2073 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 2074 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 2075 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 2076 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 2077 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 2078 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 2079 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 2080 2081 if (mvm->fw->phy_integration_ver) 2082 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 2083 #ifdef CONFIG_ACPI 2084 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 2085 #endif 2086 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 2087 2088 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 2089 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 2090 2091 debugfs_create_bool("enable_scan_iteration_notif", 0600, 2092 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 2093 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 2094 &mvm->drop_bcn_ap_mode); 2095 2096 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2097 2098 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 2099 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 2100 bcast_dir = debugfs_create_dir("bcast_filtering", 2101 mvm->debugfs_dir); 2102 2103 debugfs_create_bool("override", 0600, bcast_dir, 2104 &mvm->dbgfs_bcast_filtering.override); 2105 2106 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 2107 bcast_dir, 0600); 2108 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 2109 bcast_dir, 0600); 2110 } 2111 #endif 2112 2113 #ifdef CONFIG_PM_SLEEP 2114 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2115 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 2116 &mvm->d3_wake_sysassert); 2117 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 2118 &mvm->last_netdetect_scans); 2119 #endif 2120 2121 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 2122 &mvm->ps_disabled); 2123 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 2124 &mvm->nvm_hw_blob); 2125 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 2126 &mvm->nvm_sw_blob); 2127 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 2128 &mvm->nvm_calib_blob); 2129 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 2130 &mvm->nvm_prod_blob); 2131 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 2132 &mvm->nvm_phy_sku_blob); 2133 debugfs_create_blob("nvm_reg", S_IRUSR, 2134 mvm->debugfs_dir, &mvm->nvm_reg_blob); 2135 2136 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 2137 &iwl_dbgfs_mem_ops); 2138 2139 /* 2140 * Create a symlink with mac80211. It will be removed when mac80211 2141 * exists (before the opmode exists which removes the target.) 2142 */ 2143 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 2144 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf); 2145 } 2146