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 #if defined(__linux__) 708 mvm->fwrt.dev->bus->name); 709 #elif defined(__FreeBSD__) 710 "<bus>"); 711 #endif 712 713 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 714 kfree(buff); 715 716 return ret; 717 } 718 719 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 720 char __user *user_buf, 721 size_t count, loff_t *ppos) 722 { 723 struct iwl_mvm *mvm = file->private_data; 724 char *buf; 725 size_t bufsz; 726 int pos; 727 ssize_t ret; 728 729 bufsz = mvm->fw->phy_integration_ver_len + 2; 730 buf = kmalloc(bufsz, GFP_KERNEL); 731 if (!buf) 732 return -ENOMEM; 733 734 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 735 mvm->fw->phy_integration_ver); 736 737 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 738 739 kfree(buf); 740 return ret; 741 } 742 743 #define PRINT_STATS_LE32(_struct, _memb) \ 744 pos += scnprintf(buf + pos, bufsz - pos, \ 745 fmt_table, #_memb, \ 746 le32_to_cpu(_struct->_memb)) 747 748 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 749 char __user *user_buf, size_t count, 750 loff_t *ppos) 751 { 752 struct iwl_mvm *mvm = file->private_data; 753 static const char *fmt_table = "\t%-30s %10u\n"; 754 static const char *fmt_header = "%-32s\n"; 755 int pos = 0; 756 char *buf; 757 int ret; 758 size_t bufsz; 759 760 if (iwl_mvm_has_new_rx_stats_api(mvm)) 761 bufsz = ((sizeof(struct mvm_statistics_rx) / 762 sizeof(__le32)) * 43) + (4 * 33) + 1; 763 else 764 /* 43 = size of each data line; 33 = size of each header */ 765 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 766 sizeof(__le32)) * 43) + (4 * 33) + 1; 767 768 buf = kzalloc(bufsz, GFP_KERNEL); 769 if (!buf) 770 return -ENOMEM; 771 772 mutex_lock(&mvm->mutex); 773 774 if (iwl_mvm_firmware_running(mvm)) 775 iwl_mvm_request_statistics(mvm, false); 776 777 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 778 "Statistics_Rx - OFDM"); 779 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 780 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 781 782 PRINT_STATS_LE32(ofdm, ina_cnt); 783 PRINT_STATS_LE32(ofdm, fina_cnt); 784 PRINT_STATS_LE32(ofdm, plcp_err); 785 PRINT_STATS_LE32(ofdm, crc32_err); 786 PRINT_STATS_LE32(ofdm, overrun_err); 787 PRINT_STATS_LE32(ofdm, early_overrun_err); 788 PRINT_STATS_LE32(ofdm, crc32_good); 789 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 790 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 791 PRINT_STATS_LE32(ofdm, sfd_timeout); 792 PRINT_STATS_LE32(ofdm, fina_timeout); 793 PRINT_STATS_LE32(ofdm, unresponded_rts); 794 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 795 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 796 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 797 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 798 PRINT_STATS_LE32(ofdm, dsp_self_kill); 799 PRINT_STATS_LE32(ofdm, mh_format_err); 800 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 801 PRINT_STATS_LE32(ofdm, reserved); 802 } else { 803 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 804 805 PRINT_STATS_LE32(ofdm, unresponded_rts); 806 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 807 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 808 PRINT_STATS_LE32(ofdm, dsp_self_kill); 809 PRINT_STATS_LE32(ofdm, reserved); 810 } 811 812 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 813 "Statistics_Rx - CCK"); 814 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 815 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 816 817 PRINT_STATS_LE32(cck, ina_cnt); 818 PRINT_STATS_LE32(cck, fina_cnt); 819 PRINT_STATS_LE32(cck, plcp_err); 820 PRINT_STATS_LE32(cck, crc32_err); 821 PRINT_STATS_LE32(cck, overrun_err); 822 PRINT_STATS_LE32(cck, early_overrun_err); 823 PRINT_STATS_LE32(cck, crc32_good); 824 PRINT_STATS_LE32(cck, false_alarm_cnt); 825 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 826 PRINT_STATS_LE32(cck, sfd_timeout); 827 PRINT_STATS_LE32(cck, fina_timeout); 828 PRINT_STATS_LE32(cck, unresponded_rts); 829 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 830 PRINT_STATS_LE32(cck, sent_ack_cnt); 831 PRINT_STATS_LE32(cck, sent_cts_cnt); 832 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 833 PRINT_STATS_LE32(cck, dsp_self_kill); 834 PRINT_STATS_LE32(cck, mh_format_err); 835 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 836 PRINT_STATS_LE32(cck, reserved); 837 } else { 838 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 839 840 PRINT_STATS_LE32(cck, unresponded_rts); 841 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 842 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 843 PRINT_STATS_LE32(cck, dsp_self_kill); 844 PRINT_STATS_LE32(cck, reserved); 845 } 846 847 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 848 "Statistics_Rx - GENERAL"); 849 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 850 struct mvm_statistics_rx_non_phy_v3 *general = 851 &mvm->rx_stats_v3.general; 852 853 PRINT_STATS_LE32(general, bogus_cts); 854 PRINT_STATS_LE32(general, bogus_ack); 855 PRINT_STATS_LE32(general, non_bssid_frames); 856 PRINT_STATS_LE32(general, filtered_frames); 857 PRINT_STATS_LE32(general, non_channel_beacons); 858 PRINT_STATS_LE32(general, channel_beacons); 859 PRINT_STATS_LE32(general, num_missed_bcon); 860 PRINT_STATS_LE32(general, adc_rx_saturation_time); 861 PRINT_STATS_LE32(general, ina_detection_search_time); 862 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 863 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 864 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 865 PRINT_STATS_LE32(general, interference_data_flag); 866 PRINT_STATS_LE32(general, channel_load); 867 PRINT_STATS_LE32(general, dsp_false_alarms); 868 PRINT_STATS_LE32(general, beacon_rssi_a); 869 PRINT_STATS_LE32(general, beacon_rssi_b); 870 PRINT_STATS_LE32(general, beacon_rssi_c); 871 PRINT_STATS_LE32(general, beacon_energy_a); 872 PRINT_STATS_LE32(general, beacon_energy_b); 873 PRINT_STATS_LE32(general, beacon_energy_c); 874 PRINT_STATS_LE32(general, num_bt_kills); 875 PRINT_STATS_LE32(general, mac_id); 876 PRINT_STATS_LE32(general, directed_data_mpdu); 877 } else { 878 struct mvm_statistics_rx_non_phy *general = 879 &mvm->rx_stats.general; 880 881 PRINT_STATS_LE32(general, bogus_cts); 882 PRINT_STATS_LE32(general, bogus_ack); 883 PRINT_STATS_LE32(general, non_channel_beacons); 884 PRINT_STATS_LE32(general, channel_beacons); 885 PRINT_STATS_LE32(general, num_missed_bcon); 886 PRINT_STATS_LE32(general, adc_rx_saturation_time); 887 PRINT_STATS_LE32(general, ina_detection_search_time); 888 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 889 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 890 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 891 PRINT_STATS_LE32(general, interference_data_flag); 892 PRINT_STATS_LE32(general, channel_load); 893 PRINT_STATS_LE32(general, beacon_rssi_a); 894 PRINT_STATS_LE32(general, beacon_rssi_b); 895 PRINT_STATS_LE32(general, beacon_rssi_c); 896 PRINT_STATS_LE32(general, beacon_energy_a); 897 PRINT_STATS_LE32(general, beacon_energy_b); 898 PRINT_STATS_LE32(general, beacon_energy_c); 899 PRINT_STATS_LE32(general, num_bt_kills); 900 PRINT_STATS_LE32(general, mac_id); 901 } 902 903 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 904 "Statistics_Rx - HT"); 905 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 906 struct mvm_statistics_rx_ht_phy_v1 *ht = 907 &mvm->rx_stats_v3.ofdm_ht; 908 909 PRINT_STATS_LE32(ht, plcp_err); 910 PRINT_STATS_LE32(ht, overrun_err); 911 PRINT_STATS_LE32(ht, early_overrun_err); 912 PRINT_STATS_LE32(ht, crc32_good); 913 PRINT_STATS_LE32(ht, crc32_err); 914 PRINT_STATS_LE32(ht, mh_format_err); 915 PRINT_STATS_LE32(ht, agg_crc32_good); 916 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 917 PRINT_STATS_LE32(ht, agg_cnt); 918 PRINT_STATS_LE32(ht, unsupport_mcs); 919 } else { 920 struct mvm_statistics_rx_ht_phy *ht = 921 &mvm->rx_stats.ofdm_ht; 922 923 PRINT_STATS_LE32(ht, mh_format_err); 924 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 925 PRINT_STATS_LE32(ht, agg_cnt); 926 PRINT_STATS_LE32(ht, unsupport_mcs); 927 } 928 929 mutex_unlock(&mvm->mutex); 930 931 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 932 kfree(buf); 933 934 return ret; 935 } 936 #undef PRINT_STAT_LE32 937 938 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 939 char __user *user_buf, size_t count, 940 loff_t *ppos, 941 struct iwl_mvm_frame_stats *stats) 942 { 943 char *buff, *pos, *endpos; 944 int idx, i; 945 int ret; 946 static const size_t bufsz = 1024; 947 948 buff = kmalloc(bufsz, GFP_KERNEL); 949 if (!buff) 950 return -ENOMEM; 951 952 spin_lock_bh(&mvm->drv_stats_lock); 953 954 pos = buff; 955 endpos = pos + bufsz; 956 957 pos += scnprintf(pos, endpos - pos, 958 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 959 stats->legacy_frames, 960 stats->ht_frames, 961 stats->vht_frames); 962 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 963 stats->bw_20_frames, 964 stats->bw_40_frames, 965 stats->bw_80_frames); 966 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 967 stats->ngi_frames, 968 stats->sgi_frames); 969 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 970 stats->siso_frames, 971 stats->mimo2_frames); 972 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 973 stats->fail_frames, 974 stats->success_frames); 975 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 976 stats->agg_frames); 977 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 978 stats->ampdu_count); 979 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 980 stats->ampdu_count > 0 ? 981 (stats->agg_frames / stats->ampdu_count) : 0); 982 983 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 984 985 idx = stats->last_frame_idx - 1; 986 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 987 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 988 if (stats->last_rates[idx] == 0) 989 continue; 990 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 991 (int)(ARRAY_SIZE(stats->last_rates) - i)); 992 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 993 stats->last_rates[idx]); 994 if (pos < endpos - 1) 995 *pos++ = '\n'; 996 } 997 spin_unlock_bh(&mvm->drv_stats_lock); 998 999 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1000 kfree(buff); 1001 1002 return ret; 1003 } 1004 1005 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1006 char __user *user_buf, size_t count, 1007 loff_t *ppos) 1008 { 1009 struct iwl_mvm *mvm = file->private_data; 1010 1011 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1012 &mvm->drv_rx_stats); 1013 } 1014 1015 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1016 size_t count, loff_t *ppos) 1017 { 1018 int __maybe_unused ret; 1019 1020 if (!iwl_mvm_firmware_running(mvm)) 1021 return -EIO; 1022 1023 mutex_lock(&mvm->mutex); 1024 1025 /* allow one more restart that we're provoking here */ 1026 if (mvm->fw_restart >= 0) 1027 mvm->fw_restart++; 1028 1029 if (count == 6 && !strcmp(buf, "nolog\n")) { 1030 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1031 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1032 } 1033 1034 /* take the return value to make compiler happy - it will fail anyway */ 1035 ret = iwl_mvm_send_cmd_pdu(mvm, 1036 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1037 0, 0, NULL); 1038 1039 mutex_unlock(&mvm->mutex); 1040 1041 return count; 1042 } 1043 1044 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1045 size_t count, loff_t *ppos) 1046 { 1047 if (!iwl_mvm_firmware_running(mvm)) 1048 return -EIO; 1049 1050 if (count == 6 && !strcmp(buf, "nolog\n")) 1051 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1052 1053 iwl_force_nmi(mvm->trans); 1054 1055 return count; 1056 } 1057 1058 static ssize_t 1059 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1060 char __user *user_buf, 1061 size_t count, loff_t *ppos) 1062 { 1063 struct iwl_mvm *mvm = file->private_data; 1064 int pos = 0; 1065 char buf[32]; 1066 const size_t bufsz = sizeof(buf); 1067 1068 /* print which antennas were set for the scan command by the user */ 1069 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1070 if (mvm->scan_rx_ant & ANT_A) 1071 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1072 if (mvm->scan_rx_ant & ANT_B) 1073 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1074 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1075 1076 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1077 } 1078 1079 static ssize_t 1080 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1081 size_t count, loff_t *ppos) 1082 { 1083 u8 scan_rx_ant; 1084 1085 if (!iwl_mvm_firmware_running(mvm)) 1086 return -EIO; 1087 1088 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1089 return -EINVAL; 1090 if (scan_rx_ant > ANT_ABC) 1091 return -EINVAL; 1092 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1093 return -EINVAL; 1094 1095 if (mvm->scan_rx_ant != scan_rx_ant) { 1096 mvm->scan_rx_ant = scan_rx_ant; 1097 if (fw_has_capa(&mvm->fw->ucode_capa, 1098 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1099 iwl_mvm_config_scan(mvm); 1100 } 1101 1102 return count; 1103 } 1104 1105 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1106 char *buf, size_t count, 1107 loff_t *ppos) 1108 { 1109 struct iwl_rss_config_cmd cmd = { 1110 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1111 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1112 IWL_RSS_HASH_TYPE_IPV4_UDP | 1113 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1114 IWL_RSS_HASH_TYPE_IPV6_TCP | 1115 IWL_RSS_HASH_TYPE_IPV6_UDP | 1116 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1117 }; 1118 int ret, i, num_repeats, nbytes = count / 2; 1119 1120 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1121 if (ret) 1122 return ret; 1123 1124 /* 1125 * The input is the redirection table, partial or full. 1126 * Repeat the pattern if needed. 1127 * For example, input of 01020F will be repeated 42 times, 1128 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1129 * queues 3 - 14). 1130 */ 1131 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1132 for (i = 1; i < num_repeats; i++) 1133 memcpy(&cmd.indirection_table[i * nbytes], 1134 cmd.indirection_table, nbytes); 1135 /* handle cut in the middle pattern for the last places */ 1136 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1137 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1138 1139 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1140 1141 mutex_lock(&mvm->mutex); 1142 if (iwl_mvm_firmware_running(mvm)) 1143 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1144 sizeof(cmd), &cmd); 1145 else 1146 ret = 0; 1147 mutex_unlock(&mvm->mutex); 1148 1149 return ret ?: count; 1150 } 1151 1152 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1153 char *buf, size_t count, 1154 loff_t *ppos) 1155 { 1156 struct iwl_op_mode *opmode = container_of((void *)mvm, 1157 struct iwl_op_mode, 1158 op_mode_specific); 1159 struct iwl_rx_cmd_buffer rxb = { 1160 ._rx_page_order = 0, 1161 .truesize = 0, /* not used */ 1162 ._offset = 0, 1163 }; 1164 struct iwl_rx_packet *pkt; 1165 int bin_len = count / 2; 1166 int ret = -EINVAL; 1167 1168 if (!iwl_mvm_firmware_running(mvm)) 1169 return -EIO; 1170 1171 /* supporting only MQ RX */ 1172 if (!mvm->trans->trans_cfg->mq_rx_supported) 1173 return -ENOTSUPP; 1174 1175 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1176 if (!rxb._page) 1177 return -ENOMEM; 1178 pkt = rxb_addr(&rxb); 1179 1180 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1181 if (ret) 1182 goto out; 1183 1184 /* avoid invalid memory access and malformed packet */ 1185 if (bin_len < sizeof(*pkt) || 1186 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1187 goto out; 1188 1189 local_bh_disable(); 1190 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1191 local_bh_enable(); 1192 ret = 0; 1193 1194 out: 1195 iwl_free_rxb(&rxb); 1196 1197 return ret ?: count; 1198 } 1199 1200 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1201 { 1202 struct ieee80211_vif *vif; 1203 struct iwl_mvm_vif *mvmvif; 1204 struct sk_buff *beacon; 1205 struct ieee80211_tx_info *info; 1206 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1207 u8 rate; 1208 int i; 1209 1210 len /= 2; 1211 1212 /* Element len should be represented by u8 */ 1213 if (len >= U8_MAX) 1214 return -EINVAL; 1215 1216 if (!iwl_mvm_firmware_running(mvm)) 1217 return -EIO; 1218 1219 if (!iwl_mvm_has_new_tx_api(mvm) && 1220 !fw_has_api(&mvm->fw->ucode_capa, 1221 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1222 return -EINVAL; 1223 1224 mutex_lock(&mvm->mutex); 1225 1226 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1227 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1228 if (!vif) 1229 continue; 1230 1231 if (vif->type == NL80211_IFTYPE_AP) 1232 break; 1233 } 1234 1235 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1236 goto out_err; 1237 1238 mvm->hw->extra_beacon_tailroom = len; 1239 1240 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); 1241 if (!beacon) 1242 goto out_err; 1243 1244 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1245 dev_kfree_skb(beacon); 1246 goto out_err; 1247 } 1248 1249 mvm->beacon_inject_active = true; 1250 1251 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1252 info = IEEE80211_SKB_CB(beacon); 1253 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 1254 1255 beacon_cmd.flags = 1256 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate)); 1257 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1258 beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 1259 1260 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1261 &beacon_cmd.tim_size, 1262 beacon->data, beacon->len); 1263 1264 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1265 sizeof(beacon_cmd)); 1266 mutex_unlock(&mvm->mutex); 1267 1268 dev_kfree_skb(beacon); 1269 1270 return 0; 1271 1272 out_err: 1273 mutex_unlock(&mvm->mutex); 1274 return -EINVAL; 1275 } 1276 1277 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1278 char *buf, size_t count, 1279 loff_t *ppos) 1280 { 1281 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1282 1283 mvm->hw->extra_beacon_tailroom = 0; 1284 return ret ?: count; 1285 } 1286 1287 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1288 char *buf, 1289 size_t count, 1290 loff_t *ppos) 1291 { 1292 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1293 1294 mvm->hw->extra_beacon_tailroom = 0; 1295 mvm->beacon_inject_active = false; 1296 return ret ?: count; 1297 } 1298 1299 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1300 char __user *user_buf, 1301 size_t count, loff_t *ppos) 1302 { 1303 struct iwl_mvm *mvm = file->private_data; 1304 int conf; 1305 char buf[8]; 1306 const size_t bufsz = sizeof(buf); 1307 int pos = 0; 1308 1309 mutex_lock(&mvm->mutex); 1310 conf = mvm->fwrt.dump.conf; 1311 mutex_unlock(&mvm->mutex); 1312 1313 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1314 1315 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1316 } 1317 1318 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1319 char *buf, size_t count, 1320 loff_t *ppos) 1321 { 1322 unsigned int conf_id; 1323 int ret; 1324 1325 if (!iwl_mvm_firmware_running(mvm)) 1326 return -EIO; 1327 1328 ret = kstrtouint(buf, 0, &conf_id); 1329 if (ret) 1330 return ret; 1331 1332 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1333 return -EINVAL; 1334 1335 mutex_lock(&mvm->mutex); 1336 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1337 mutex_unlock(&mvm->mutex); 1338 1339 return ret ?: count; 1340 } 1341 1342 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1343 char *buf, size_t count, 1344 loff_t *ppos) 1345 { 1346 if (count == 0) 1347 return 0; 1348 1349 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1350 NULL); 1351 1352 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1353 (count - 1), NULL); 1354 1355 return count; 1356 } 1357 1358 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1359 char *buf, size_t count, 1360 loff_t *ppos) 1361 { 1362 u32 timepoint; 1363 1364 if (kstrtou32(buf, 0, &timepoint)) 1365 return -EINVAL; 1366 1367 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1368 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1369 return -EINVAL; 1370 1371 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1372 1373 return count; 1374 } 1375 1376 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1377 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1378 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1379 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1380 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1381 debugfs_create_file(alias, mode, parent, mvm, \ 1382 &iwl_dbgfs_##name##_ops); \ 1383 } while (0) 1384 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1385 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1386 1387 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1388 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1389 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1390 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1391 1392 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1393 debugfs_create_file(alias, mode, parent, sta, \ 1394 &iwl_dbgfs_##name##_ops); \ 1395 } while (0) 1396 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1397 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1398 1399 static ssize_t 1400 iwl_dbgfs_prph_reg_read(struct file *file, 1401 char __user *user_buf, 1402 size_t count, loff_t *ppos) 1403 { 1404 struct iwl_mvm *mvm = file->private_data; 1405 int pos = 0; 1406 char buf[32]; 1407 const size_t bufsz = sizeof(buf); 1408 1409 if (!mvm->dbgfs_prph_reg_addr) 1410 return -EINVAL; 1411 1412 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1413 mvm->dbgfs_prph_reg_addr, 1414 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1415 1416 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1417 } 1418 1419 static ssize_t 1420 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1421 size_t count, loff_t *ppos) 1422 { 1423 u8 args; 1424 u32 value; 1425 1426 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1427 /* if we only want to set the reg address - nothing more to do */ 1428 if (args == 1) 1429 goto out; 1430 1431 /* otherwise, make sure we have both address and value */ 1432 if (args != 2) 1433 return -EINVAL; 1434 1435 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1436 1437 out: 1438 return count; 1439 } 1440 1441 static ssize_t 1442 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1443 size_t count, loff_t *ppos) 1444 { 1445 int ret; 1446 1447 if (!iwl_mvm_firmware_running(mvm)) 1448 return -EIO; 1449 1450 mutex_lock(&mvm->mutex); 1451 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1452 mutex_unlock(&mvm->mutex); 1453 1454 return ret ?: count; 1455 } 1456 1457 struct iwl_mvm_sniffer_apply { 1458 struct iwl_mvm *mvm; 1459 u8 *bssid; 1460 u16 aid; 1461 }; 1462 1463 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1464 struct iwl_rx_packet *pkt, void *data) 1465 { 1466 struct iwl_mvm_sniffer_apply *apply = data; 1467 1468 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1469 memcpy(apply->mvm->cur_bssid, apply->bssid, 1470 sizeof(apply->mvm->cur_bssid)); 1471 1472 return true; 1473 } 1474 1475 static ssize_t 1476 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1477 size_t count, loff_t *ppos) 1478 { 1479 struct iwl_notification_wait wait; 1480 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1481 struct iwl_mvm_sniffer_apply apply = { 1482 .mvm = mvm, 1483 }; 1484 u16 wait_cmds[] = { 1485 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1486 }; 1487 u32 aid; 1488 int ret; 1489 1490 if (!iwl_mvm_firmware_running(mvm)) 1491 return -EIO; 1492 1493 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1494 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1495 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1496 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1497 if (ret != 7) 1498 return -EINVAL; 1499 1500 he_mon_cmd.aid = cpu_to_le16(aid); 1501 1502 apply.aid = aid; 1503 apply.bssid = (void *)he_mon_cmd.bssid; 1504 1505 mutex_lock(&mvm->mutex); 1506 1507 /* 1508 * Use the notification waiter to get our function triggered 1509 * in sequence with other RX. This ensures that frames we get 1510 * on the RX queue _before_ the new configuration is applied 1511 * still have mvm->cur_aid pointing to the old AID, and that 1512 * frames on the RX queue _after_ the firmware processed the 1513 * new configuration (and sent the response, synchronously) 1514 * get mvm->cur_aid correctly set to the new AID. 1515 */ 1516 iwl_init_notification_wait(&mvm->notif_wait, &wait, 1517 wait_cmds, ARRAY_SIZE(wait_cmds), 1518 iwl_mvm_sniffer_apply, &apply); 1519 1520 ret = iwl_mvm_send_cmd_pdu(mvm, 1521 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1522 0, 1523 sizeof(he_mon_cmd), &he_mon_cmd); 1524 1525 /* no need to really wait, we already did anyway */ 1526 iwl_remove_notification(&mvm->notif_wait, &wait); 1527 1528 mutex_unlock(&mvm->mutex); 1529 1530 return ret ?: count; 1531 } 1532 1533 static ssize_t 1534 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 1535 size_t count, loff_t *ppos) 1536 { 1537 struct iwl_mvm *mvm = file->private_data; 1538 u8 buf[32]; 1539 int len; 1540 1541 len = scnprintf(buf, sizeof(buf), 1542 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 1543 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 1544 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 1545 mvm->cur_bssid[4], mvm->cur_bssid[5]); 1546 1547 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1548 } 1549 1550 static ssize_t 1551 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1552 size_t count, loff_t *ppos) 1553 { 1554 struct iwl_mvm *mvm = file->private_data; 1555 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1556 unsigned int pos = 0; 1557 size_t bufsz = sizeof(buf); 1558 int i; 1559 1560 mutex_lock(&mvm->mutex); 1561 1562 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1563 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1564 mvm->uapsd_noagg_bssids[i].addr); 1565 1566 mutex_unlock(&mvm->mutex); 1567 1568 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1569 } 1570 1571 static ssize_t 1572 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 1573 char *buf, size_t count, loff_t *ppos) 1574 { 1575 int ret; 1576 struct iwl_ltr_config_cmd ltr_config = {0}; 1577 1578 if (!iwl_mvm_firmware_running(mvm)) 1579 return -EIO; 1580 1581 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 1582 <r_config.flags, 1583 <r_config.static_long, 1584 <r_config.static_short, 1585 <r_config.ltr_cfg_values[0], 1586 <r_config.ltr_cfg_values[1], 1587 <r_config.ltr_cfg_values[2], 1588 <r_config.ltr_cfg_values[3]) != 7) { 1589 return -EINVAL; 1590 } 1591 1592 mutex_lock(&mvm->mutex); 1593 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 1594 <r_config); 1595 mutex_unlock(&mvm->mutex); 1596 1597 if (ret) 1598 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 1599 1600 return ret ?: count; 1601 } 1602 1603 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 1604 size_t count, loff_t *ppos) 1605 { 1606 int ret = 0; 1607 u16 op_id; 1608 1609 if (kstrtou16(buf, 10, &op_id)) 1610 return -EINVAL; 1611 1612 /* value zero triggers re-sending the default table to the device */ 1613 if (!op_id) { 1614 mutex_lock(&mvm->mutex); 1615 ret = iwl_rfi_send_config_cmd(mvm, NULL); 1616 mutex_unlock(&mvm->mutex); 1617 } else { 1618 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 1619 } 1620 1621 return ret ?: count; 1622 } 1623 1624 /* The size computation is as follows: 1625 * each number needs at most 3 characters, number of rows is the size of 1626 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 1627 * needs 6 characters for numbers and 5 for the punctuation around. 1628 */ 1629 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 1630 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 1631 1632 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 1633 char __user *user_buf, 1634 size_t count, loff_t *ppos) 1635 { 1636 struct iwl_mvm *mvm = file->private_data; 1637 struct iwl_rfi_freq_table_resp_cmd *resp; 1638 u32 status; 1639 char buf[IWL_RFI_BUF_SIZE]; 1640 int i, j, pos = 0; 1641 1642 resp = iwl_rfi_get_freq_table(mvm); 1643 if (IS_ERR(resp)) 1644 return PTR_ERR(resp); 1645 1646 status = le32_to_cpu(resp->status); 1647 if (status != RFI_FREQ_TABLE_OK) { 1648 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 1649 goto out; 1650 } 1651 1652 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 1653 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 1654 resp->table[i].freq); 1655 1656 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 1657 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 1658 "(%d, %d) ", 1659 resp->table[i].channels[j], 1660 resp->table[i].bands[j]); 1661 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 1662 } 1663 1664 out: 1665 kfree(resp); 1666 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1667 } 1668 1669 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1670 1671 /* Device wide debugfs entries */ 1672 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1673 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1674 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1675 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1676 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1677 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1678 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1679 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1680 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1681 MVM_DEBUGFS_READ_FILE_OPS(stations); 1682 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1683 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1684 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1685 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1686 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1687 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1688 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1689 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 1690 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1691 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1692 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1693 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1694 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1695 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1696 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1697 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 1698 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1699 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1700 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1701 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 1702 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 1703 1704 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1705 1706 #ifdef CONFIG_ACPI 1707 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1708 #endif 1709 1710 MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16); 1711 1712 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 1713 1714 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 1715 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 1716 1717 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1718 size_t count, loff_t *ppos) 1719 { 1720 struct iwl_mvm *mvm = file->private_data; 1721 struct iwl_dbg_mem_access_cmd cmd = {}; 1722 struct iwl_dbg_mem_access_rsp *rsp; 1723 struct iwl_host_cmd hcmd = { 1724 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1725 .data = { &cmd, }, 1726 .len = { sizeof(cmd) }, 1727 }; 1728 size_t delta; 1729 ssize_t ret, len; 1730 1731 if (!iwl_mvm_firmware_running(mvm)) 1732 return -EIO; 1733 1734 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1735 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1736 1737 /* Take care of alignment of both the position and the length */ 1738 delta = *ppos & 0x3; 1739 cmd.addr = cpu_to_le32(*ppos - delta); 1740 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1741 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1742 1743 mutex_lock(&mvm->mutex); 1744 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1745 mutex_unlock(&mvm->mutex); 1746 1747 if (ret < 0) 1748 return ret; 1749 1750 rsp = (void *)hcmd.resp_pkt->data; 1751 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1752 ret = -ENXIO; 1753 goto out; 1754 } 1755 1756 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1757 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1758 len = min(len - delta, count); 1759 if (len < 0) { 1760 ret = -EFAULT; 1761 goto out; 1762 } 1763 1764 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 1765 *ppos += ret; 1766 1767 out: 1768 iwl_free_resp(&hcmd); 1769 return ret; 1770 } 1771 1772 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1773 const char __user *user_buf, size_t count, 1774 loff_t *ppos) 1775 { 1776 struct iwl_mvm *mvm = file->private_data; 1777 struct iwl_dbg_mem_access_cmd *cmd; 1778 struct iwl_dbg_mem_access_rsp *rsp; 1779 struct iwl_host_cmd hcmd = {}; 1780 size_t cmd_size; 1781 size_t data_size; 1782 u32 op, len; 1783 ssize_t ret; 1784 1785 if (!iwl_mvm_firmware_running(mvm)) 1786 return -EIO; 1787 1788 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1789 1790 if (*ppos & 0x3 || count < 4) { 1791 op = DEBUG_MEM_OP_WRITE_BYTES; 1792 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1793 data_size = len; 1794 } else { 1795 op = DEBUG_MEM_OP_WRITE; 1796 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1797 data_size = len << 2; 1798 } 1799 1800 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1801 cmd = kzalloc(cmd_size, GFP_KERNEL); 1802 if (!cmd) 1803 return -ENOMEM; 1804 1805 cmd->op = cpu_to_le32(op); 1806 cmd->len = cpu_to_le32(len); 1807 cmd->addr = cpu_to_le32(*ppos); 1808 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1809 kfree(cmd); 1810 return -EFAULT; 1811 } 1812 1813 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1814 hcmd.data[0] = (void *)cmd; 1815 hcmd.len[0] = cmd_size; 1816 1817 mutex_lock(&mvm->mutex); 1818 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1819 mutex_unlock(&mvm->mutex); 1820 1821 kfree(cmd); 1822 1823 if (ret < 0) 1824 return ret; 1825 1826 rsp = (void *)hcmd.resp_pkt->data; 1827 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1828 ret = -ENXIO; 1829 goto out; 1830 } 1831 1832 ret = data_size; 1833 *ppos += ret; 1834 1835 out: 1836 iwl_free_resp(&hcmd); 1837 return ret; 1838 } 1839 1840 static const struct file_operations iwl_dbgfs_mem_ops = { 1841 .read = iwl_dbgfs_mem_read, 1842 .write = iwl_dbgfs_mem_write, 1843 .open = simple_open, 1844 .llseek = default_llseek, 1845 }; 1846 1847 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 1848 struct ieee80211_vif *vif, 1849 struct ieee80211_sta *sta, 1850 struct dentry *dir) 1851 { 1852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1853 1854 if (iwl_mvm_has_tlc_offload(mvm)) { 1855 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 1856 } 1857 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600); 1858 } 1859 1860 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 1861 { 1862 struct dentry *bcast_dir __maybe_unused; 1863 1864 spin_lock_init(&mvm->drv_stats_lock); 1865 1866 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 1867 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 1868 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 1869 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 1870 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 1871 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 1872 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 1873 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 1874 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 1875 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 1876 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 1877 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 1878 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 1879 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 1880 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 1881 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 1882 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 1883 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 1884 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 1885 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 1886 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 1887 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 1888 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 1889 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 1890 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 1891 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 1892 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 1893 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 1894 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 1895 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 1896 1897 if (mvm->fw->phy_integration_ver) 1898 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 1899 #ifdef CONFIG_ACPI 1900 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 1901 #endif 1902 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 1903 1904 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 1905 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 1906 1907 debugfs_create_bool("enable_scan_iteration_notif", 0600, 1908 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 1909 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 1910 &mvm->drop_bcn_ap_mode); 1911 1912 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 1913 1914 #ifdef CONFIG_PM_SLEEP 1915 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 1916 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 1917 &mvm->d3_wake_sysassert); 1918 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 1919 &mvm->last_netdetect_scans); 1920 #endif 1921 1922 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 1923 &mvm->ps_disabled); 1924 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 1925 &mvm->nvm_hw_blob); 1926 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 1927 &mvm->nvm_sw_blob); 1928 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 1929 &mvm->nvm_calib_blob); 1930 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 1931 &mvm->nvm_prod_blob); 1932 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 1933 &mvm->nvm_phy_sku_blob); 1934 debugfs_create_blob("nvm_reg", S_IRUSR, 1935 mvm->debugfs_dir, &mvm->nvm_reg_blob); 1936 1937 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 1938 &iwl_dbgfs_mem_ops); 1939 1940 #if defined(__linux__) 1941 /* 1942 * Create a symlink with mac80211. It will be removed when mac80211 1943 * exists (before the opmode exists which removes the target.) 1944 */ 1945 if (!IS_ERR(mvm->debugfs_dir)) { 1946 char buf[100]; 1947 1948 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 1949 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, 1950 buf); 1951 } 1952 #endif 1953 } 1954