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