1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 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: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u 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: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u 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->cur->max_amsdu_len; 434 sta->deflink.agg.max_amsdu_len = amsdu_len; 435 sta->deflink.agg.max_amsdu_len = amsdu_len; 436 for (i = 0; i < ARRAY_SIZE(sta->deflink.agg.max_tid_amsdu_len); i++) 437 sta->deflink.agg.max_tid_amsdu_len[i] = amsdu_len; 438 } else { 439 sta->deflink.agg.max_amsdu_len = mvmsta->orig_amsdu_len; 440 mvmsta->orig_amsdu_len = 0; 441 } 442 443 return count; 444 } 445 446 static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file, 447 char __user *user_buf, 448 size_t count, loff_t *ppos) 449 { 450 struct ieee80211_sta *sta = file->private_data; 451 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 452 453 char buf[32]; 454 int pos; 455 456 pos = scnprintf(buf, sizeof(buf), "current %d ", sta->cur->max_amsdu_len); 457 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", 458 mvmsta->orig_amsdu_len); 459 460 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 461 } 462 463 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 464 char __user *user_buf, 465 size_t count, loff_t *ppos) 466 { 467 struct iwl_mvm *mvm = file->private_data; 468 char buf[64]; 469 int bufsz = sizeof(buf); 470 int pos = 0; 471 472 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 473 mvm->disable_power_off); 474 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 475 mvm->disable_power_off_d3); 476 477 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 478 } 479 480 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 481 size_t count, loff_t *ppos) 482 { 483 int ret, val; 484 485 if (!iwl_mvm_firmware_running(mvm)) 486 return -EIO; 487 488 if (!strncmp("disable_power_off_d0=", buf, 21)) { 489 if (sscanf(buf + 21, "%d", &val) != 1) 490 return -EINVAL; 491 mvm->disable_power_off = val; 492 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 493 if (sscanf(buf + 21, "%d", &val) != 1) 494 return -EINVAL; 495 mvm->disable_power_off_d3 = val; 496 } else { 497 return -EINVAL; 498 } 499 500 mutex_lock(&mvm->mutex); 501 ret = iwl_mvm_power_update_device(mvm); 502 mutex_unlock(&mvm->mutex); 503 504 return ret ?: count; 505 } 506 507 static 508 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 509 int pos, int bufsz) 510 { 511 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 512 513 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 514 BT_MBOX_PRINT(0, LE_PROF1, false); 515 BT_MBOX_PRINT(0, LE_PROF2, false); 516 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 517 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 518 BT_MBOX_PRINT(0, INBAND_S, false); 519 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 520 BT_MBOX_PRINT(0, LE_SCAN, false); 521 BT_MBOX_PRINT(0, LE_ADV, false); 522 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 523 BT_MBOX_PRINT(0, OPEN_CON_1, true); 524 525 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 526 527 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 528 BT_MBOX_PRINT(1, IP_SR, false); 529 BT_MBOX_PRINT(1, LE_MSTR, false); 530 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 531 BT_MBOX_PRINT(1, MSG_TYPE, false); 532 BT_MBOX_PRINT(1, SSN, true); 533 534 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 535 536 BT_MBOX_PRINT(2, SNIFF_ACT, false); 537 BT_MBOX_PRINT(2, PAG, false); 538 BT_MBOX_PRINT(2, INQUIRY, false); 539 BT_MBOX_PRINT(2, CONN, false); 540 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 541 BT_MBOX_PRINT(2, DISC, false); 542 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 543 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 544 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 545 BT_MBOX_PRINT(2, SCO_DURATION, true); 546 547 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 548 549 BT_MBOX_PRINT(3, SCO_STATE, false); 550 BT_MBOX_PRINT(3, SNIFF_STATE, false); 551 BT_MBOX_PRINT(3, A2DP_STATE, false); 552 BT_MBOX_PRINT(3, A2DP_SRC, false); 553 BT_MBOX_PRINT(3, ACL_STATE, false); 554 BT_MBOX_PRINT(3, MSTR_STATE, false); 555 BT_MBOX_PRINT(3, OBX_STATE, false); 556 BT_MBOX_PRINT(3, OPEN_CON_2, false); 557 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 558 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 559 BT_MBOX_PRINT(3, INBAND_P, false); 560 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 561 BT_MBOX_PRINT(3, SSN_2, false); 562 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 563 564 return pos; 565 } 566 567 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 568 size_t count, loff_t *ppos) 569 { 570 struct iwl_mvm *mvm = file->private_data; 571 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 572 char *buf; 573 int ret, pos = 0, bufsz = sizeof(char) * 1024; 574 575 buf = kmalloc(bufsz, GFP_KERNEL); 576 if (!buf) 577 return -ENOMEM; 578 579 mutex_lock(&mvm->mutex); 580 581 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 582 583 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 584 notif->bt_ci_compliance); 585 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 586 le32_to_cpu(notif->primary_ch_lut)); 587 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 588 le32_to_cpu(notif->secondary_ch_lut)); 589 pos += scnprintf(buf + pos, 590 bufsz - pos, "bt_activity_grading = %d\n", 591 le32_to_cpu(notif->bt_activity_grading)); 592 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 593 notif->rrc_status & 0xF); 594 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 595 notif->ttc_status & 0xF); 596 597 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 598 IWL_MVM_BT_COEX_SYNC2SCO); 599 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 600 IWL_MVM_BT_COEX_MPLUT); 601 602 mutex_unlock(&mvm->mutex); 603 604 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 605 kfree(buf); 606 607 return ret; 608 } 609 #undef BT_MBOX_PRINT 610 611 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 612 size_t count, loff_t *ppos) 613 { 614 struct iwl_mvm *mvm = file->private_data; 615 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 616 char buf[256]; 617 int bufsz = sizeof(buf); 618 int pos = 0; 619 620 mutex_lock(&mvm->mutex); 621 622 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 623 pos += scnprintf(buf + pos, bufsz - pos, 624 "\tPrimary Channel Bitmap 0x%016llx\n", 625 le64_to_cpu(cmd->bt_primary_ci)); 626 pos += scnprintf(buf + pos, bufsz - pos, 627 "\tSecondary Channel Bitmap 0x%016llx\n", 628 le64_to_cpu(cmd->bt_secondary_ci)); 629 630 mutex_unlock(&mvm->mutex); 631 632 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 633 } 634 635 static ssize_t 636 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 637 size_t count, loff_t *ppos) 638 { 639 u32 bt_tx_prio; 640 641 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 642 return -EINVAL; 643 if (bt_tx_prio > 4) 644 return -EINVAL; 645 646 mvm->bt_tx_prio = bt_tx_prio; 647 648 return count; 649 } 650 651 static ssize_t 652 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 653 size_t count, loff_t *ppos) 654 { 655 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 656 [BT_FORCE_ANT_DIS] = "dis", 657 [BT_FORCE_ANT_AUTO] = "auto", 658 [BT_FORCE_ANT_BT] = "bt", 659 [BT_FORCE_ANT_WIFI] = "wifi", 660 }; 661 int ret, bt_force_ant_mode; 662 663 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 664 if (ret < 0) 665 return ret; 666 667 bt_force_ant_mode = ret; 668 ret = 0; 669 mutex_lock(&mvm->mutex); 670 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 671 goto out; 672 673 mvm->bt_force_ant_mode = bt_force_ant_mode; 674 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 675 modes_str[mvm->bt_force_ant_mode]); 676 677 if (iwl_mvm_firmware_running(mvm)) 678 ret = iwl_mvm_send_bt_init_conf(mvm); 679 else 680 ret = 0; 681 682 out: 683 mutex_unlock(&mvm->mutex); 684 return ret ?: count; 685 } 686 687 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 688 size_t count, loff_t *ppos) 689 { 690 struct iwl_mvm *mvm = file->private_data; 691 char *buff, *pos, *endpos; 692 static const size_t bufsz = 1024; 693 int ret; 694 695 buff = kmalloc(bufsz, GFP_KERNEL); 696 if (!buff) 697 return -ENOMEM; 698 699 pos = buff; 700 endpos = pos + bufsz; 701 702 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 703 mvm->trans->cfg->fw_name_pre); 704 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 705 mvm->fwrt.fw->human_readable); 706 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 707 mvm->fwrt.trans->name); 708 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 709 mvm->fwrt.dev->bus->name); 710 711 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 712 kfree(buff); 713 714 return ret; 715 } 716 717 static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 718 char __user *user_buf, 719 size_t count, loff_t *ppos) 720 { 721 struct iwl_mvm *mvm = file->private_data; 722 char *buf; 723 size_t bufsz; 724 int pos; 725 ssize_t ret; 726 727 bufsz = mvm->fw->phy_integration_ver_len + 2; 728 buf = kmalloc(bufsz, GFP_KERNEL); 729 if (!buf) 730 return -ENOMEM; 731 732 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 733 mvm->fw->phy_integration_ver); 734 735 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 736 737 kfree(buf); 738 return ret; 739 } 740 741 #define PRINT_STATS_LE32(_struct, _memb) \ 742 pos += scnprintf(buf + pos, bufsz - pos, \ 743 fmt_table, #_memb, \ 744 le32_to_cpu(_struct->_memb)) 745 746 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 747 char __user *user_buf, size_t count, 748 loff_t *ppos) 749 { 750 struct iwl_mvm *mvm = file->private_data; 751 static const char *fmt_table = "\t%-30s %10u\n"; 752 static const char *fmt_header = "%-32s\n"; 753 int pos = 0; 754 char *buf; 755 int ret; 756 size_t bufsz; 757 758 if (iwl_mvm_has_new_rx_stats_api(mvm)) 759 bufsz = ((sizeof(struct mvm_statistics_rx) / 760 sizeof(__le32)) * 43) + (4 * 33) + 1; 761 else 762 /* 43 = size of each data line; 33 = size of each header */ 763 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 764 sizeof(__le32)) * 43) + (4 * 33) + 1; 765 766 buf = kzalloc(bufsz, GFP_KERNEL); 767 if (!buf) 768 return -ENOMEM; 769 770 mutex_lock(&mvm->mutex); 771 772 if (iwl_mvm_firmware_running(mvm)) 773 iwl_mvm_request_statistics(mvm, false); 774 775 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 776 "Statistics_Rx - OFDM"); 777 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 778 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 779 780 PRINT_STATS_LE32(ofdm, ina_cnt); 781 PRINT_STATS_LE32(ofdm, fina_cnt); 782 PRINT_STATS_LE32(ofdm, plcp_err); 783 PRINT_STATS_LE32(ofdm, crc32_err); 784 PRINT_STATS_LE32(ofdm, overrun_err); 785 PRINT_STATS_LE32(ofdm, early_overrun_err); 786 PRINT_STATS_LE32(ofdm, crc32_good); 787 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 788 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 789 PRINT_STATS_LE32(ofdm, sfd_timeout); 790 PRINT_STATS_LE32(ofdm, fina_timeout); 791 PRINT_STATS_LE32(ofdm, unresponded_rts); 792 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 793 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 794 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 795 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 796 PRINT_STATS_LE32(ofdm, dsp_self_kill); 797 PRINT_STATS_LE32(ofdm, mh_format_err); 798 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 799 PRINT_STATS_LE32(ofdm, reserved); 800 } else { 801 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 802 803 PRINT_STATS_LE32(ofdm, unresponded_rts); 804 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 805 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 806 PRINT_STATS_LE32(ofdm, dsp_self_kill); 807 PRINT_STATS_LE32(ofdm, reserved); 808 } 809 810 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 811 "Statistics_Rx - CCK"); 812 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 813 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 814 815 PRINT_STATS_LE32(cck, ina_cnt); 816 PRINT_STATS_LE32(cck, fina_cnt); 817 PRINT_STATS_LE32(cck, plcp_err); 818 PRINT_STATS_LE32(cck, crc32_err); 819 PRINT_STATS_LE32(cck, overrun_err); 820 PRINT_STATS_LE32(cck, early_overrun_err); 821 PRINT_STATS_LE32(cck, crc32_good); 822 PRINT_STATS_LE32(cck, false_alarm_cnt); 823 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 824 PRINT_STATS_LE32(cck, sfd_timeout); 825 PRINT_STATS_LE32(cck, fina_timeout); 826 PRINT_STATS_LE32(cck, unresponded_rts); 827 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 828 PRINT_STATS_LE32(cck, sent_ack_cnt); 829 PRINT_STATS_LE32(cck, sent_cts_cnt); 830 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 831 PRINT_STATS_LE32(cck, dsp_self_kill); 832 PRINT_STATS_LE32(cck, mh_format_err); 833 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 834 PRINT_STATS_LE32(cck, reserved); 835 } else { 836 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 837 838 PRINT_STATS_LE32(cck, unresponded_rts); 839 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 840 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 841 PRINT_STATS_LE32(cck, dsp_self_kill); 842 PRINT_STATS_LE32(cck, reserved); 843 } 844 845 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 846 "Statistics_Rx - GENERAL"); 847 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 848 struct mvm_statistics_rx_non_phy_v3 *general = 849 &mvm->rx_stats_v3.general; 850 851 PRINT_STATS_LE32(general, bogus_cts); 852 PRINT_STATS_LE32(general, bogus_ack); 853 PRINT_STATS_LE32(general, non_bssid_frames); 854 PRINT_STATS_LE32(general, filtered_frames); 855 PRINT_STATS_LE32(general, non_channel_beacons); 856 PRINT_STATS_LE32(general, channel_beacons); 857 PRINT_STATS_LE32(general, num_missed_bcon); 858 PRINT_STATS_LE32(general, adc_rx_saturation_time); 859 PRINT_STATS_LE32(general, ina_detection_search_time); 860 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 861 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 862 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 863 PRINT_STATS_LE32(general, interference_data_flag); 864 PRINT_STATS_LE32(general, channel_load); 865 PRINT_STATS_LE32(general, dsp_false_alarms); 866 PRINT_STATS_LE32(general, beacon_rssi_a); 867 PRINT_STATS_LE32(general, beacon_rssi_b); 868 PRINT_STATS_LE32(general, beacon_rssi_c); 869 PRINT_STATS_LE32(general, beacon_energy_a); 870 PRINT_STATS_LE32(general, beacon_energy_b); 871 PRINT_STATS_LE32(general, beacon_energy_c); 872 PRINT_STATS_LE32(general, num_bt_kills); 873 PRINT_STATS_LE32(general, mac_id); 874 PRINT_STATS_LE32(general, directed_data_mpdu); 875 } else { 876 struct mvm_statistics_rx_non_phy *general = 877 &mvm->rx_stats.general; 878 879 PRINT_STATS_LE32(general, bogus_cts); 880 PRINT_STATS_LE32(general, bogus_ack); 881 PRINT_STATS_LE32(general, non_channel_beacons); 882 PRINT_STATS_LE32(general, channel_beacons); 883 PRINT_STATS_LE32(general, num_missed_bcon); 884 PRINT_STATS_LE32(general, adc_rx_saturation_time); 885 PRINT_STATS_LE32(general, ina_detection_search_time); 886 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 887 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 888 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 889 PRINT_STATS_LE32(general, interference_data_flag); 890 PRINT_STATS_LE32(general, channel_load); 891 PRINT_STATS_LE32(general, beacon_rssi_a); 892 PRINT_STATS_LE32(general, beacon_rssi_b); 893 PRINT_STATS_LE32(general, beacon_rssi_c); 894 PRINT_STATS_LE32(general, beacon_energy_a); 895 PRINT_STATS_LE32(general, beacon_energy_b); 896 PRINT_STATS_LE32(general, beacon_energy_c); 897 PRINT_STATS_LE32(general, num_bt_kills); 898 PRINT_STATS_LE32(general, mac_id); 899 } 900 901 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 902 "Statistics_Rx - HT"); 903 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 904 struct mvm_statistics_rx_ht_phy_v1 *ht = 905 &mvm->rx_stats_v3.ofdm_ht; 906 907 PRINT_STATS_LE32(ht, plcp_err); 908 PRINT_STATS_LE32(ht, overrun_err); 909 PRINT_STATS_LE32(ht, early_overrun_err); 910 PRINT_STATS_LE32(ht, crc32_good); 911 PRINT_STATS_LE32(ht, crc32_err); 912 PRINT_STATS_LE32(ht, mh_format_err); 913 PRINT_STATS_LE32(ht, agg_crc32_good); 914 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 915 PRINT_STATS_LE32(ht, agg_cnt); 916 PRINT_STATS_LE32(ht, unsupport_mcs); 917 } else { 918 struct mvm_statistics_rx_ht_phy *ht = 919 &mvm->rx_stats.ofdm_ht; 920 921 PRINT_STATS_LE32(ht, mh_format_err); 922 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 923 PRINT_STATS_LE32(ht, agg_cnt); 924 PRINT_STATS_LE32(ht, unsupport_mcs); 925 } 926 927 mutex_unlock(&mvm->mutex); 928 929 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 930 kfree(buf); 931 932 return ret; 933 } 934 #undef PRINT_STAT_LE32 935 936 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 937 char __user *user_buf, size_t count, 938 loff_t *ppos, 939 struct iwl_mvm_frame_stats *stats) 940 { 941 char *buff, *pos, *endpos; 942 int idx, i; 943 int ret; 944 static const size_t bufsz = 1024; 945 946 buff = kmalloc(bufsz, GFP_KERNEL); 947 if (!buff) 948 return -ENOMEM; 949 950 spin_lock_bh(&mvm->drv_stats_lock); 951 952 pos = buff; 953 endpos = pos + bufsz; 954 955 pos += scnprintf(pos, endpos - pos, 956 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 957 stats->legacy_frames, 958 stats->ht_frames, 959 stats->vht_frames); 960 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 961 stats->bw_20_frames, 962 stats->bw_40_frames, 963 stats->bw_80_frames); 964 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 965 stats->ngi_frames, 966 stats->sgi_frames); 967 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 968 stats->siso_frames, 969 stats->mimo2_frames); 970 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 971 stats->fail_frames, 972 stats->success_frames); 973 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 974 stats->agg_frames); 975 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 976 stats->ampdu_count); 977 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 978 stats->ampdu_count > 0 ? 979 (stats->agg_frames / stats->ampdu_count) : 0); 980 981 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 982 983 idx = stats->last_frame_idx - 1; 984 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 985 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 986 if (stats->last_rates[idx] == 0) 987 continue; 988 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 989 (int)(ARRAY_SIZE(stats->last_rates) - i)); 990 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 991 stats->last_rates[idx]); 992 if (pos < endpos - 1) 993 *pos++ = '\n'; 994 } 995 spin_unlock_bh(&mvm->drv_stats_lock); 996 997 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 998 kfree(buff); 999 1000 return ret; 1001 } 1002 1003 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1004 char __user *user_buf, size_t count, 1005 loff_t *ppos) 1006 { 1007 struct iwl_mvm *mvm = file->private_data; 1008 1009 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1010 &mvm->drv_rx_stats); 1011 } 1012 1013 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1014 size_t count, loff_t *ppos) 1015 { 1016 int __maybe_unused ret; 1017 1018 if (!iwl_mvm_firmware_running(mvm)) 1019 return -EIO; 1020 1021 mutex_lock(&mvm->mutex); 1022 1023 /* allow one more restart that we're provoking here */ 1024 if (mvm->fw_restart >= 0) 1025 mvm->fw_restart++; 1026 1027 if (count == 6 && !strcmp(buf, "nolog\n")) { 1028 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1029 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1030 } 1031 1032 /* take the return value to make compiler happy - it will fail anyway */ 1033 ret = iwl_mvm_send_cmd_pdu(mvm, 1034 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1035 0, 0, NULL); 1036 1037 mutex_unlock(&mvm->mutex); 1038 1039 return count; 1040 } 1041 1042 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1043 size_t count, loff_t *ppos) 1044 { 1045 if (!iwl_mvm_firmware_running(mvm)) 1046 return -EIO; 1047 1048 if (count == 6 && !strcmp(buf, "nolog\n")) 1049 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1050 1051 iwl_force_nmi(mvm->trans); 1052 1053 return count; 1054 } 1055 1056 static ssize_t 1057 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1058 char __user *user_buf, 1059 size_t count, loff_t *ppos) 1060 { 1061 struct iwl_mvm *mvm = file->private_data; 1062 int pos = 0; 1063 char buf[32]; 1064 const size_t bufsz = sizeof(buf); 1065 1066 /* print which antennas were set for the scan command by the user */ 1067 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1068 if (mvm->scan_rx_ant & ANT_A) 1069 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1070 if (mvm->scan_rx_ant & ANT_B) 1071 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1072 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant); 1073 1074 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1075 } 1076 1077 static ssize_t 1078 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1079 size_t count, loff_t *ppos) 1080 { 1081 u8 scan_rx_ant; 1082 1083 if (!iwl_mvm_firmware_running(mvm)) 1084 return -EIO; 1085 1086 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1087 return -EINVAL; 1088 if (scan_rx_ant > ANT_ABC) 1089 return -EINVAL; 1090 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1091 return -EINVAL; 1092 1093 if (mvm->scan_rx_ant != scan_rx_ant) { 1094 mvm->scan_rx_ant = scan_rx_ant; 1095 if (fw_has_capa(&mvm->fw->ucode_capa, 1096 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1097 iwl_mvm_config_scan(mvm); 1098 } 1099 1100 return count; 1101 } 1102 1103 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1104 char *buf, size_t count, 1105 loff_t *ppos) 1106 { 1107 struct iwl_rss_config_cmd cmd = { 1108 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1109 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1110 IWL_RSS_HASH_TYPE_IPV4_UDP | 1111 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1112 IWL_RSS_HASH_TYPE_IPV6_TCP | 1113 IWL_RSS_HASH_TYPE_IPV6_UDP | 1114 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1115 }; 1116 int ret, i, num_repeats, nbytes = count / 2; 1117 1118 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1119 if (ret) 1120 return ret; 1121 1122 /* 1123 * The input is the redirection table, partial or full. 1124 * Repeat the pattern if needed. 1125 * For example, input of 01020F will be repeated 42 times, 1126 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1127 * queues 3 - 14). 1128 */ 1129 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1130 for (i = 1; i < num_repeats; i++) 1131 memcpy(&cmd.indirection_table[i * nbytes], 1132 cmd.indirection_table, nbytes); 1133 /* handle cut in the middle pattern for the last places */ 1134 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1135 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1136 1137 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1138 1139 mutex_lock(&mvm->mutex); 1140 if (iwl_mvm_firmware_running(mvm)) 1141 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1142 sizeof(cmd), &cmd); 1143 else 1144 ret = 0; 1145 mutex_unlock(&mvm->mutex); 1146 1147 return ret ?: count; 1148 } 1149 1150 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1151 char *buf, size_t count, 1152 loff_t *ppos) 1153 { 1154 struct iwl_op_mode *opmode = container_of((void *)mvm, 1155 struct iwl_op_mode, 1156 op_mode_specific); 1157 struct iwl_rx_cmd_buffer rxb = { 1158 ._rx_page_order = 0, 1159 .truesize = 0, /* not used */ 1160 ._offset = 0, 1161 }; 1162 struct iwl_rx_packet *pkt; 1163 int bin_len = count / 2; 1164 int ret = -EINVAL; 1165 1166 if (!iwl_mvm_firmware_running(mvm)) 1167 return -EIO; 1168 1169 /* supporting only MQ RX */ 1170 if (!mvm->trans->trans_cfg->mq_rx_supported) 1171 return -ENOTSUPP; 1172 1173 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1174 if (!rxb._page) 1175 return -ENOMEM; 1176 pkt = rxb_addr(&rxb); 1177 1178 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1179 if (ret) 1180 goto out; 1181 1182 /* avoid invalid memory access and malformed packet */ 1183 if (bin_len < sizeof(*pkt) || 1184 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1185 goto out; 1186 1187 local_bh_disable(); 1188 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1189 local_bh_enable(); 1190 ret = 0; 1191 1192 out: 1193 iwl_free_rxb(&rxb); 1194 1195 return ret ?: count; 1196 } 1197 1198 static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1199 { 1200 struct ieee80211_vif *vif; 1201 struct iwl_mvm_vif *mvmvif; 1202 struct sk_buff *beacon; 1203 struct ieee80211_tx_info *info; 1204 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1205 u8 rate; 1206 int i; 1207 1208 len /= 2; 1209 1210 /* Element len should be represented by u8 */ 1211 if (len >= U8_MAX) 1212 return -EINVAL; 1213 1214 if (!iwl_mvm_firmware_running(mvm)) 1215 return -EIO; 1216 1217 if (!iwl_mvm_has_new_tx_api(mvm) && 1218 !fw_has_api(&mvm->fw->ucode_capa, 1219 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1220 return -EINVAL; 1221 1222 mutex_lock(&mvm->mutex); 1223 1224 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1225 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1226 if (!vif) 1227 continue; 1228 1229 if (vif->type == NL80211_IFTYPE_AP) 1230 break; 1231 } 1232 1233 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1234 goto out_err; 1235 1236 mvm->hw->extra_beacon_tailroom = len; 1237 1238 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); 1239 if (!beacon) 1240 goto out_err; 1241 1242 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1243 dev_kfree_skb(beacon); 1244 goto out_err; 1245 } 1246 1247 mvm->beacon_inject_active = true; 1248 1249 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1250 info = IEEE80211_SKB_CB(beacon); 1251 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); 1252 1253 beacon_cmd.flags = 1254 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, rate)); 1255 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1256 beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 1257 1258 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1259 &beacon_cmd.tim_size, 1260 beacon->data, beacon->len); 1261 1262 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1263 sizeof(beacon_cmd)); 1264 mutex_unlock(&mvm->mutex); 1265 1266 dev_kfree_skb(beacon); 1267 1268 return 0; 1269 1270 out_err: 1271 mutex_unlock(&mvm->mutex); 1272 return -EINVAL; 1273 } 1274 1275 static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1276 char *buf, size_t count, 1277 loff_t *ppos) 1278 { 1279 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1280 1281 mvm->hw->extra_beacon_tailroom = 0; 1282 return ret ?: count; 1283 } 1284 1285 static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1286 char *buf, 1287 size_t count, 1288 loff_t *ppos) 1289 { 1290 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1291 1292 mvm->hw->extra_beacon_tailroom = 0; 1293 mvm->beacon_inject_active = false; 1294 return ret ?: count; 1295 } 1296 1297 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1298 char __user *user_buf, 1299 size_t count, loff_t *ppos) 1300 { 1301 struct iwl_mvm *mvm = file->private_data; 1302 int conf; 1303 char buf[8]; 1304 const size_t bufsz = sizeof(buf); 1305 int pos = 0; 1306 1307 mutex_lock(&mvm->mutex); 1308 conf = mvm->fwrt.dump.conf; 1309 mutex_unlock(&mvm->mutex); 1310 1311 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1312 1313 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1314 } 1315 1316 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1317 char *buf, size_t count, 1318 loff_t *ppos) 1319 { 1320 unsigned int conf_id; 1321 int ret; 1322 1323 if (!iwl_mvm_firmware_running(mvm)) 1324 return -EIO; 1325 1326 ret = kstrtouint(buf, 0, &conf_id); 1327 if (ret) 1328 return ret; 1329 1330 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1331 return -EINVAL; 1332 1333 mutex_lock(&mvm->mutex); 1334 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1335 mutex_unlock(&mvm->mutex); 1336 1337 return ret ?: count; 1338 } 1339 1340 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1341 char *buf, size_t count, 1342 loff_t *ppos) 1343 { 1344 if (count == 0) 1345 return 0; 1346 1347 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1348 NULL); 1349 1350 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1351 (count - 1), NULL); 1352 1353 return count; 1354 } 1355 1356 static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1357 char *buf, size_t count, 1358 loff_t *ppos) 1359 { 1360 u32 timepoint; 1361 1362 if (kstrtou32(buf, 0, &timepoint)) 1363 return -EINVAL; 1364 1365 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1366 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1367 return -EINVAL; 1368 1369 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1370 1371 return count; 1372 } 1373 1374 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1375 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1376 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1377 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1378 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1379 debugfs_create_file(alias, mode, parent, mvm, \ 1380 &iwl_dbgfs_##name##_ops); \ 1381 } while (0) 1382 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1383 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1384 1385 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1386 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1387 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1388 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1389 1390 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1391 debugfs_create_file(alias, mode, parent, sta, \ 1392 &iwl_dbgfs_##name##_ops); \ 1393 } while (0) 1394 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1395 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1396 1397 static ssize_t 1398 iwl_dbgfs_prph_reg_read(struct file *file, 1399 char __user *user_buf, 1400 size_t count, loff_t *ppos) 1401 { 1402 struct iwl_mvm *mvm = file->private_data; 1403 int pos = 0; 1404 char buf[32]; 1405 const size_t bufsz = sizeof(buf); 1406 1407 if (!mvm->dbgfs_prph_reg_addr) 1408 return -EINVAL; 1409 1410 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1411 mvm->dbgfs_prph_reg_addr, 1412 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1413 1414 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1415 } 1416 1417 static ssize_t 1418 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1419 size_t count, loff_t *ppos) 1420 { 1421 u8 args; 1422 u32 value; 1423 1424 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1425 /* if we only want to set the reg address - nothing more to do */ 1426 if (args == 1) 1427 goto out; 1428 1429 /* otherwise, make sure we have both address and value */ 1430 if (args != 2) 1431 return -EINVAL; 1432 1433 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1434 1435 out: 1436 return count; 1437 } 1438 1439 static ssize_t 1440 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1441 size_t count, loff_t *ppos) 1442 { 1443 int ret; 1444 1445 if (!iwl_mvm_firmware_running(mvm)) 1446 return -EIO; 1447 1448 mutex_lock(&mvm->mutex); 1449 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1450 mutex_unlock(&mvm->mutex); 1451 1452 return ret ?: count; 1453 } 1454 1455 struct iwl_mvm_sniffer_apply { 1456 struct iwl_mvm *mvm; 1457 u8 *bssid; 1458 u16 aid; 1459 }; 1460 1461 static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1462 struct iwl_rx_packet *pkt, void *data) 1463 { 1464 struct iwl_mvm_sniffer_apply *apply = data; 1465 1466 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1467 memcpy(apply->mvm->cur_bssid, apply->bssid, 1468 sizeof(apply->mvm->cur_bssid)); 1469 1470 return true; 1471 } 1472 1473 static ssize_t 1474 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1475 size_t count, loff_t *ppos) 1476 { 1477 struct iwl_notification_wait wait; 1478 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1479 struct iwl_mvm_sniffer_apply apply = { 1480 .mvm = mvm, 1481 }; 1482 u16 wait_cmds[] = { 1483 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1484 }; 1485 u32 aid; 1486 int ret; 1487 1488 if (!iwl_mvm_firmware_running(mvm)) 1489 return -EIO; 1490 1491 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1492 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1493 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1494 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1495 if (ret != 7) 1496 return -EINVAL; 1497 1498 he_mon_cmd.aid = cpu_to_le16(aid); 1499 1500 apply.aid = aid; 1501 apply.bssid = (void *)he_mon_cmd.bssid; 1502 1503 mutex_lock(&mvm->mutex); 1504 1505 /* 1506 * Use the notification waiter to get our function triggered 1507 * in sequence with other RX. This ensures that frames we get 1508 * on the RX queue _before_ the new configuration is applied 1509 * still have mvm->cur_aid pointing to the old AID, and that 1510 * frames on the RX queue _after_ the firmware processed the 1511 * new configuration (and sent the response, synchronously) 1512 * get mvm->cur_aid correctly set to the new AID. 1513 */ 1514 iwl_init_notification_wait(&mvm->notif_wait, &wait, 1515 wait_cmds, ARRAY_SIZE(wait_cmds), 1516 iwl_mvm_sniffer_apply, &apply); 1517 1518 ret = iwl_mvm_send_cmd_pdu(mvm, 1519 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1520 0, 1521 sizeof(he_mon_cmd), &he_mon_cmd); 1522 1523 /* no need to really wait, we already did anyway */ 1524 iwl_remove_notification(&mvm->notif_wait, &wait); 1525 1526 mutex_unlock(&mvm->mutex); 1527 1528 return ret ?: count; 1529 } 1530 1531 static ssize_t 1532 iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 1533 size_t count, loff_t *ppos) 1534 { 1535 struct iwl_mvm *mvm = file->private_data; 1536 u8 buf[32]; 1537 int len; 1538 1539 len = scnprintf(buf, sizeof(buf), 1540 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 1541 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 1542 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 1543 mvm->cur_bssid[4], mvm->cur_bssid[5]); 1544 1545 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1546 } 1547 1548 static ssize_t 1549 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1550 size_t count, loff_t *ppos) 1551 { 1552 struct iwl_mvm *mvm = file->private_data; 1553 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1554 unsigned int pos = 0; 1555 size_t bufsz = sizeof(buf); 1556 int i; 1557 1558 mutex_lock(&mvm->mutex); 1559 1560 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1561 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1562 mvm->uapsd_noagg_bssids[i].addr); 1563 1564 mutex_unlock(&mvm->mutex); 1565 1566 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1567 } 1568 1569 static ssize_t 1570 iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 1571 char *buf, size_t count, loff_t *ppos) 1572 { 1573 int ret; 1574 struct iwl_ltr_config_cmd ltr_config = {0}; 1575 1576 if (!iwl_mvm_firmware_running(mvm)) 1577 return -EIO; 1578 1579 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 1580 <r_config.flags, 1581 <r_config.static_long, 1582 <r_config.static_short, 1583 <r_config.ltr_cfg_values[0], 1584 <r_config.ltr_cfg_values[1], 1585 <r_config.ltr_cfg_values[2], 1586 <r_config.ltr_cfg_values[3]) != 7) { 1587 return -EINVAL; 1588 } 1589 1590 mutex_lock(&mvm->mutex); 1591 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 1592 <r_config); 1593 mutex_unlock(&mvm->mutex); 1594 1595 if (ret) 1596 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 1597 1598 return ret ?: count; 1599 } 1600 1601 static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 1602 size_t count, loff_t *ppos) 1603 { 1604 int ret = 0; 1605 u16 op_id; 1606 1607 if (kstrtou16(buf, 10, &op_id)) 1608 return -EINVAL; 1609 1610 /* value zero triggers re-sending the default table to the device */ 1611 if (!op_id) { 1612 mutex_lock(&mvm->mutex); 1613 ret = iwl_rfi_send_config_cmd(mvm, NULL); 1614 mutex_unlock(&mvm->mutex); 1615 } else { 1616 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 1617 } 1618 1619 return ret ?: count; 1620 } 1621 1622 /* The size computation is as follows: 1623 * each number needs at most 3 characters, number of rows is the size of 1624 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 1625 * needs 6 characters for numbers and 5 for the punctuation around. 1626 */ 1627 #define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 1628 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 1629 1630 static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 1631 char __user *user_buf, 1632 size_t count, loff_t *ppos) 1633 { 1634 struct iwl_mvm *mvm = file->private_data; 1635 struct iwl_rfi_freq_table_resp_cmd *resp; 1636 u32 status; 1637 char buf[IWL_RFI_BUF_SIZE]; 1638 int i, j, pos = 0; 1639 1640 resp = iwl_rfi_get_freq_table(mvm); 1641 if (IS_ERR(resp)) 1642 return PTR_ERR(resp); 1643 1644 status = le32_to_cpu(resp->status); 1645 if (status != RFI_FREQ_TABLE_OK) { 1646 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 1647 goto out; 1648 } 1649 1650 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 1651 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 1652 resp->table[i].freq); 1653 1654 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 1655 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 1656 "(%d, %d) ", 1657 resp->table[i].channels[j], 1658 resp->table[i].bands[j]); 1659 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 1660 } 1661 1662 out: 1663 kfree(resp); 1664 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1665 } 1666 1667 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1668 1669 /* Device wide debugfs entries */ 1670 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1671 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1672 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1673 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1674 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1675 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1676 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1677 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1678 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1679 MVM_DEBUGFS_READ_FILE_OPS(stations); 1680 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1681 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1682 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1683 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1684 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1685 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1686 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1687 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 1688 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1689 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1690 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1691 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1692 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1693 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1694 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1695 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 1696 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1697 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1698 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1699 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 1700 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 1701 1702 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1703 1704 #ifdef CONFIG_ACPI 1705 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1706 #endif 1707 1708 MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16); 1709 1710 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 1711 1712 MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 1713 MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 1714 1715 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1716 size_t count, loff_t *ppos) 1717 { 1718 struct iwl_mvm *mvm = file->private_data; 1719 struct iwl_dbg_mem_access_cmd cmd = {}; 1720 struct iwl_dbg_mem_access_rsp *rsp; 1721 struct iwl_host_cmd hcmd = { 1722 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1723 .data = { &cmd, }, 1724 .len = { sizeof(cmd) }, 1725 }; 1726 size_t delta; 1727 ssize_t ret, len; 1728 1729 if (!iwl_mvm_firmware_running(mvm)) 1730 return -EIO; 1731 1732 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1733 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1734 1735 /* Take care of alignment of both the position and the length */ 1736 delta = *ppos & 0x3; 1737 cmd.addr = cpu_to_le32(*ppos - delta); 1738 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1739 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1740 1741 mutex_lock(&mvm->mutex); 1742 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1743 mutex_unlock(&mvm->mutex); 1744 1745 if (ret < 0) 1746 return ret; 1747 1748 rsp = (void *)hcmd.resp_pkt->data; 1749 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1750 ret = -ENXIO; 1751 goto out; 1752 } 1753 1754 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1755 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1756 len = min(len - delta, count); 1757 if (len < 0) { 1758 ret = -EFAULT; 1759 goto out; 1760 } 1761 1762 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 1763 *ppos += ret; 1764 1765 out: 1766 iwl_free_resp(&hcmd); 1767 return ret; 1768 } 1769 1770 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1771 const char __user *user_buf, size_t count, 1772 loff_t *ppos) 1773 { 1774 struct iwl_mvm *mvm = file->private_data; 1775 struct iwl_dbg_mem_access_cmd *cmd; 1776 struct iwl_dbg_mem_access_rsp *rsp; 1777 struct iwl_host_cmd hcmd = {}; 1778 size_t cmd_size; 1779 size_t data_size; 1780 u32 op, len; 1781 ssize_t ret; 1782 1783 if (!iwl_mvm_firmware_running(mvm)) 1784 return -EIO; 1785 1786 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 1787 1788 if (*ppos & 0x3 || count < 4) { 1789 op = DEBUG_MEM_OP_WRITE_BYTES; 1790 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1791 data_size = len; 1792 } else { 1793 op = DEBUG_MEM_OP_WRITE; 1794 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1795 data_size = len << 2; 1796 } 1797 1798 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1799 cmd = kzalloc(cmd_size, GFP_KERNEL); 1800 if (!cmd) 1801 return -ENOMEM; 1802 1803 cmd->op = cpu_to_le32(op); 1804 cmd->len = cpu_to_le32(len); 1805 cmd->addr = cpu_to_le32(*ppos); 1806 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1807 kfree(cmd); 1808 return -EFAULT; 1809 } 1810 1811 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1812 hcmd.data[0] = (void *)cmd; 1813 hcmd.len[0] = cmd_size; 1814 1815 mutex_lock(&mvm->mutex); 1816 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1817 mutex_unlock(&mvm->mutex); 1818 1819 kfree(cmd); 1820 1821 if (ret < 0) 1822 return ret; 1823 1824 rsp = (void *)hcmd.resp_pkt->data; 1825 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1826 ret = -ENXIO; 1827 goto out; 1828 } 1829 1830 ret = data_size; 1831 *ppos += ret; 1832 1833 out: 1834 iwl_free_resp(&hcmd); 1835 return ret; 1836 } 1837 1838 static const struct file_operations iwl_dbgfs_mem_ops = { 1839 .read = iwl_dbgfs_mem_read, 1840 .write = iwl_dbgfs_mem_write, 1841 .open = simple_open, 1842 .llseek = default_llseek, 1843 }; 1844 1845 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 1846 struct ieee80211_vif *vif, 1847 struct ieee80211_sta *sta, 1848 struct dentry *dir) 1849 { 1850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1851 1852 if (iwl_mvm_has_tlc_offload(mvm)) { 1853 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 1854 } 1855 MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600); 1856 } 1857 1858 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 1859 { 1860 struct dentry *bcast_dir __maybe_unused; 1861 1862 spin_lock_init(&mvm->drv_stats_lock); 1863 1864 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 1865 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 1866 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 1867 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 1868 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 1869 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 1870 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 1871 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 1872 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 1873 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 1874 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 1875 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 1876 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 1877 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 1878 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 1879 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 1880 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 1881 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 1882 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 1883 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 1884 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 1885 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 1886 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 1887 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 1888 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 1889 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 1890 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 1891 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 1892 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 1893 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 1894 1895 if (mvm->fw->phy_integration_ver) 1896 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 1897 #ifdef CONFIG_ACPI 1898 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 1899 #endif 1900 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 1901 1902 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 1903 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 1904 1905 debugfs_create_bool("enable_scan_iteration_notif", 0600, 1906 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 1907 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 1908 &mvm->drop_bcn_ap_mode); 1909 1910 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 1911 1912 #ifdef CONFIG_PM_SLEEP 1913 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 1914 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 1915 &mvm->d3_wake_sysassert); 1916 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 1917 &mvm->last_netdetect_scans); 1918 #endif 1919 1920 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 1921 &mvm->ps_disabled); 1922 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 1923 &mvm->nvm_hw_blob); 1924 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 1925 &mvm->nvm_sw_blob); 1926 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 1927 &mvm->nvm_calib_blob); 1928 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 1929 &mvm->nvm_prod_blob); 1930 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 1931 &mvm->nvm_phy_sku_blob); 1932 debugfs_create_blob("nvm_reg", S_IRUSR, 1933 mvm->debugfs_dir, &mvm->nvm_reg_blob); 1934 1935 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 1936 &iwl_dbgfs_mem_ops); 1937 1938 /* 1939 * Create a symlink with mac80211. It will be removed when mac80211 1940 * exists (before the opmode exists which removes the target.) 1941 */ 1942 if (!IS_ERR(mvm->debugfs_dir)) { 1943 char buf[100]; 1944 1945 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 1946 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, 1947 buf); 1948 } 1949 } 1950