1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7#include <linux/vmalloc.h> 8#include <linux/err.h> 9#include <linux/ieee80211.h> 10#include <linux/netdevice.h> 11#include <linux/dmi.h> 12 13#include "mvm.h" 14#include "sta.h" 15#include "iwl-io.h" 16#include "debugfs.h" 17#include "iwl-modparams.h" 18#include "iwl-drv.h" 19#include "fw/error-dump.h" 20#include "fw/api/phy-ctxt.h" 21 22static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 23 char __user *user_buf, 24 size_t count, loff_t *ppos) 25{ 26 struct iwl_mvm *mvm = file->private_data; 27 char buf[16]; 28 int pos, budget; 29 30 if (!iwl_mvm_is_ctdp_supported(mvm)) 31 return -EOPNOTSUPP; 32 33 if (!iwl_mvm_firmware_running(mvm) || 34 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 35 return -EIO; 36 37 mutex_lock(&mvm->mutex); 38 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 39 mutex_unlock(&mvm->mutex); 40 41 if (budget < 0) 42 return budget; 43 44 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 45 46 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 47} 48 49static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 50 size_t count, loff_t *ppos) 51{ 52 int ret; 53 bool force; 54 55 if (!kstrtobool(buf, &force)) 56 IWL_DEBUG_INFO(mvm, 57 "force start is %d [0=disabled, 1=enabled]\n", 58 force); 59 60 /* we allow skipping cap support check and force stop ctdp 61 * statistics collection and with guerantee that it is 62 * safe to use. 63 */ 64 if (!force && !iwl_mvm_is_ctdp_supported(mvm)) 65 return -EOPNOTSUPP; 66 67 if (!iwl_mvm_firmware_running(mvm) || 68 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 69 return -EIO; 70 71 mutex_lock(&mvm->mutex); 72 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 73 mutex_unlock(&mvm->mutex); 74 75 return ret ?: count; 76} 77 78static ssize_t iwl_dbgfs_start_ctdp_write(struct iwl_mvm *mvm, 79 char *buf, size_t count, 80 loff_t *ppos) 81{ 82 int ret; 83 bool force; 84 85 if (!kstrtobool(buf, &force)) 86 IWL_DEBUG_INFO(mvm, 87 "force start is %d [0=disabled, 1=enabled]\n", 88 force); 89 90 /* we allow skipping cap support check and force enable ctdp 91 * for statistics collection and with guerantee that it is 92 * safe to use. 93 */ 94 if (!force && !iwl_mvm_is_ctdp_supported(mvm)) 95 return -EOPNOTSUPP; 96 97 if (!iwl_mvm_firmware_running(mvm) || 98 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 99 return -EIO; 100 101 mutex_lock(&mvm->mutex); 102 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, 0); 103 mutex_unlock(&mvm->mutex); 104 105 return ret ?: count; 106} 107 108static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 109 size_t count, loff_t *ppos) 110{ 111 if (!iwl_mvm_firmware_running(mvm) || 112 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 113 return -EIO; 114 115 iwl_mvm_enter_ctkill(mvm); 116 117 return count; 118} 119 120static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 121 size_t count, loff_t *ppos) 122{ 123 int ret; 124 u32 flush_arg; 125 126 if (!iwl_mvm_firmware_running(mvm) || 127 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 128 return -EIO; 129 130 if (kstrtou32(buf, 0, &flush_arg)) 131 return -EINVAL; 132 133 if (iwl_mvm_has_new_tx_api(mvm)) { 134 IWL_DEBUG_TX_QUEUES(mvm, 135 "FLUSHING all tids queues on sta_id = %d\n", 136 flush_arg); 137 mutex_lock(&mvm->mutex); 138 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFFFF) 139 ? : count; 140 mutex_unlock(&mvm->mutex); 141 return ret; 142 } 143 144 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 145 flush_arg); 146 147 mutex_lock(&mvm->mutex); 148 ret = iwl_mvm_flush_tx_path(mvm, flush_arg) ? : count; 149 mutex_unlock(&mvm->mutex); 150 151 return ret; 152} 153 154static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 155 size_t count, loff_t *ppos) 156{ 157 struct iwl_mvm_sta *mvmsta; 158 int sta_id, drain, ret; 159 160 if (!iwl_mvm_firmware_running(mvm) || 161 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 162 return -EIO; 163 164 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 165 return -EINVAL; 166 if (sta_id < 0 || sta_id >= mvm->fw->ucode_capa.num_stations) 167 return -EINVAL; 168 if (drain < 0 || drain > 1) 169 return -EINVAL; 170 171 mutex_lock(&mvm->mutex); 172 173 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 174 175 if (!mvmsta) 176 ret = -ENOENT; 177 else 178 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 179 180 mutex_unlock(&mvm->mutex); 181 182 return ret; 183} 184 185static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 186 size_t count, loff_t *ppos) 187{ 188 struct iwl_mvm *mvm = file->private_data; 189 const struct fw_img *img; 190 unsigned int ofs, len; 191 size_t ret; 192 u8 *ptr; 193 194 if (!iwl_mvm_firmware_running(mvm)) 195 return -EINVAL; 196 197 /* default is to dump the entire data segment */ 198 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 199 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 200 len = img->sec[IWL_UCODE_SECTION_DATA].len; 201 202 if (mvm->dbgfs_sram_len) { 203 ofs = mvm->dbgfs_sram_offset; 204 len = mvm->dbgfs_sram_len; 205 } 206 207 ptr = kzalloc(len, GFP_KERNEL); 208 if (!ptr) 209 return -ENOMEM; 210 211 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 212 213 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 214 215 kfree(ptr); 216 217 return ret; 218} 219 220static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 221 size_t count, loff_t *ppos) 222{ 223 const struct fw_img *img; 224 u32 offset, len; 225 u32 img_offset, img_len; 226 227 if (!iwl_mvm_firmware_running(mvm)) 228 return -EINVAL; 229 230 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 231 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 232 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 233 234 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 235 if ((offset & 0x3) || (len & 0x3)) 236 return -EINVAL; 237 238 if (offset + len > img_offset + img_len) 239 return -EINVAL; 240 241 mvm->dbgfs_sram_offset = offset; 242 mvm->dbgfs_sram_len = len; 243 } else { 244 mvm->dbgfs_sram_offset = 0; 245 mvm->dbgfs_sram_len = 0; 246 } 247 248 return count; 249} 250 251static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 252 char __user *user_buf, 253 size_t count, loff_t *ppos) 254{ 255 struct iwl_mvm *mvm = file->private_data; 256 char buf[16]; 257 int pos; 258 259 if (!mvm->temperature_test) 260 pos = scnprintf(buf, sizeof(buf), "disabled\n"); 261 else 262 pos = scnprintf(buf, sizeof(buf), "%d\n", mvm->temperature); 263 264 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 265} 266 267/* 268 * Set NIC Temperature 269 * Cause the driver to ignore the actual NIC temperature reported by the FW 270 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 271 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 272 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 273 */ 274static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 275 char *buf, size_t count, 276 loff_t *ppos) 277{ 278 int temperature; 279 280 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 281 return -EIO; 282 283 if (kstrtoint(buf, 10, &temperature)) 284 return -EINVAL; 285 /* not a legal temperature */ 286 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 287 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 288 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 289 return -EINVAL; 290 291 mutex_lock(&mvm->mutex); 292 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 293 if (!mvm->temperature_test) 294 goto out; 295 296 mvm->temperature_test = false; 297 /* Since we can't read the temp while awake, just set 298 * it to zero until we get the next RX stats from the 299 * firmware. 300 */ 301 mvm->temperature = 0; 302 } else { 303 mvm->temperature_test = true; 304 mvm->temperature = temperature; 305 } 306 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 307 mvm->temperature_test ? "En" : "Dis", 308 mvm->temperature); 309 /* handle the temperature change */ 310 iwl_mvm_tt_handler(mvm); 311 312out: 313 mutex_unlock(&mvm->mutex); 314 315 return count; 316} 317 318static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 319 char __user *user_buf, 320 size_t count, loff_t *ppos) 321{ 322 struct iwl_mvm *mvm = file->private_data; 323 char buf[16]; 324 int pos, ret; 325 s32 temp; 326 327 if (!iwl_mvm_firmware_running(mvm)) 328 return -EIO; 329 330 mutex_lock(&mvm->mutex); 331 ret = iwl_mvm_get_temp(mvm, &temp); 332 mutex_unlock(&mvm->mutex); 333 334 if (ret) 335 return -EIO; 336 337 pos = scnprintf(buf, sizeof(buf), "%d\n", temp); 338 339 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 340} 341 342#ifdef CONFIG_ACPI 343static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 344 char __user *user_buf, 345 size_t count, loff_t *ppos) 346{ 347 struct iwl_mvm *mvm = file->private_data; 348 char buf[256]; 349 int pos = 0; 350 int bufsz = sizeof(buf); 351 int tbl_idx; 352 353 if (!iwl_mvm_firmware_running(mvm)) 354 return -EIO; 355 356 mutex_lock(&mvm->mutex); 357 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 358 if (tbl_idx < 0) { 359 mutex_unlock(&mvm->mutex); 360 return tbl_idx; 361 } 362 363 if (!tbl_idx) { 364 pos = scnprintf(buf, bufsz, 365 "SAR geographic profile disabled\n"); 366 } else { 367 pos += scnprintf(buf + pos, bufsz - pos, 368 "Use geographic profile %d\n", tbl_idx); 369 pos += scnprintf(buf + pos, bufsz - pos, 370 "2.4GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 371 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[0], 372 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].chains[1], 373 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[0].max); 374 pos += scnprintf(buf + pos, bufsz - pos, 375 "5.2GHz:\n\tChain A offset: %u dBm\n\tChain B offset: %u dBm\n\tmax tx power: %u dBm\n", 376 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[0], 377 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].chains[1], 378 mvm->fwrt.geo_profiles[tbl_idx - 1].bands[1].max); 379 } 380 mutex_unlock(&mvm->mutex); 381 382 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 383} 384 385static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file, 386 char __user *user_buf, 387 size_t count, loff_t *ppos) 388{ 389 struct iwl_mvm *mvm = file->private_data; 390 int err, pos; 391 char buf[12]; 392 u32 value; 393 394 err = iwl_bios_get_dsm(&mvm->fwrt, DSM_FUNC_ENABLE_6E, &value); 395 if (err) 396 return err; 397 398 pos = sprintf(buf, "0x%08x\n", value); 399 400 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 401} 402#endif 403 404static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 405 size_t count, loff_t *ppos) 406{ 407 struct iwl_mvm *mvm = file->private_data; 408 struct ieee80211_sta *sta; 409 char buf[400]; 410 int i, pos = 0, bufsz = sizeof(buf); 411 412 mutex_lock(&mvm->mutex); 413 414 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 415 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 416 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 417 lockdep_is_held(&mvm->mutex)); 418 if (!sta) 419 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 420 else if (IS_ERR(sta)) 421 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 422 PTR_ERR(sta)); 423 else 424 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 425 sta->addr); 426 } 427 428 mutex_unlock(&mvm->mutex); 429 430 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 431} 432 433static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta, 434 struct iwl_mvm_sta *mvmsta, 435 struct iwl_mvm *mvm, 436 struct iwl_mvm_link_sta *mvm_link_sta, 437 char __user *user_buf, 438 size_t count, loff_t *ppos) 439{ 440 struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw; 441 static const size_t bufsz = 2048; 442 char *buff; 443 int desc = 0; 444 ssize_t ret; 445 446 buff = kmalloc(bufsz, GFP_KERNEL); 447 if (!buff) 448 return -ENOMEM; 449 450 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 451 lq_sta->pers.sta_id); 452 desc += scnprintf(buff + desc, bufsz - desc, 453 "fixed rate 0x%X\n", 454 lq_sta->pers.dbg_fixed_rate); 455 desc += scnprintf(buff + desc, bufsz - desc, 456 "A-MPDU size limit %d\n", 457 lq_sta->pers.dbg_agg_frame_count_lim); 458 desc += scnprintf(buff + desc, bufsz - desc, 459 "valid_tx_ant %s%s\n", 460 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 461 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : ""); 462 desc += scnprintf(buff + desc, bufsz - desc, 463 "last tx rate=0x%X ", 464 lq_sta->last_rate_n_flags); 465 466 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 467 lq_sta->last_rate_n_flags); 468 if (desc < bufsz - 1) 469 buff[desc++] = '\n'; 470 471 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 472 kfree(buff); 473 return ret; 474} 475 476static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta, 477 struct iwl_mvm_sta *mvmsta, 478 struct iwl_mvm *mvm, 479 struct iwl_mvm_link_sta *mvm_link_sta, 480 char *buf, size_t count, 481 loff_t *ppos) 482{ 483 int i; 484 u16 amsdu_len; 485 486 if (kstrtou16(buf, 0, &amsdu_len)) 487 return -EINVAL; 488 489 /* only change from debug set <-> debug unset */ 490 if (amsdu_len && mvm_link_sta->orig_amsdu_len) 491 return -EBUSY; 492 493 if (amsdu_len) { 494 mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len; 495 link_sta->agg.max_amsdu_len = amsdu_len; 496 link_sta->agg.max_amsdu_len = amsdu_len; 497 for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++) 498 link_sta->agg.max_tid_amsdu_len[i] = amsdu_len; 499 } else { 500 link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len; 501 mvm_link_sta->orig_amsdu_len = 0; 502 } 503 504 ieee80211_sta_recalc_aggregates(link_sta->sta); 505 506 return count; 507} 508 509static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta, 510 struct iwl_mvm_sta *mvmsta, 511 struct iwl_mvm *mvm, 512 struct iwl_mvm_link_sta *mvm_link_sta, 513 char __user *user_buf, 514 size_t count, loff_t *ppos) 515{ 516 char buf[32]; 517 int pos; 518 519 pos = scnprintf(buf, sizeof(buf), "current %d ", 520 link_sta->agg.max_amsdu_len); 521 pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", 522 mvm_link_sta->orig_amsdu_len); 523 524 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 525} 526 527static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 528 char __user *user_buf, 529 size_t count, loff_t *ppos) 530{ 531 struct iwl_mvm *mvm = file->private_data; 532 char buf[64]; 533 int bufsz = sizeof(buf); 534 int pos = 0; 535 536 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 537 mvm->disable_power_off); 538 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 539 mvm->disable_power_off_d3); 540 541 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 542} 543 544static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 545 size_t count, loff_t *ppos) 546{ 547 int ret, val; 548 549 if (!iwl_mvm_firmware_running(mvm)) 550 return -EIO; 551 552 if (!strncmp("disable_power_off_d0=", buf, 21)) { 553 if (sscanf(buf + 21, "%d", &val) != 1) 554 return -EINVAL; 555 mvm->disable_power_off = val; 556 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 557 if (sscanf(buf + 21, "%d", &val) != 1) 558 return -EINVAL; 559 mvm->disable_power_off_d3 = val; 560 } else { 561 return -EINVAL; 562 } 563 564 mutex_lock(&mvm->mutex); 565 ret = iwl_mvm_power_update_device(mvm); 566 mutex_unlock(&mvm->mutex); 567 568 return ret ?: count; 569} 570 571static 572int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 573 int pos, int bufsz) 574{ 575 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 576 577 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 578 BT_MBOX_PRINT(0, LE_PROF1, false); 579 BT_MBOX_PRINT(0, LE_PROF2, false); 580 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 581 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 582 BT_MBOX_PRINT(0, INBAND_S, false); 583 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 584 BT_MBOX_PRINT(0, LE_SCAN, false); 585 BT_MBOX_PRINT(0, LE_ADV, false); 586 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 587 BT_MBOX_PRINT(0, OPEN_CON_1, true); 588 589 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 590 591 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 592 BT_MBOX_PRINT(1, IP_SR, false); 593 BT_MBOX_PRINT(1, LE_MSTR, false); 594 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 595 BT_MBOX_PRINT(1, MSG_TYPE, false); 596 BT_MBOX_PRINT(1, SSN, true); 597 598 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 599 600 BT_MBOX_PRINT(2, SNIFF_ACT, false); 601 BT_MBOX_PRINT(2, PAG, false); 602 BT_MBOX_PRINT(2, INQUIRY, false); 603 BT_MBOX_PRINT(2, CONN, false); 604 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 605 BT_MBOX_PRINT(2, DISC, false); 606 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 607 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 608 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 609 BT_MBOX_PRINT(2, SCO_DURATION, true); 610 611 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 612 613 BT_MBOX_PRINT(3, SCO_STATE, false); 614 BT_MBOX_PRINT(3, SNIFF_STATE, false); 615 BT_MBOX_PRINT(3, A2DP_STATE, false); 616 BT_MBOX_PRINT(3, A2DP_SRC, false); 617 BT_MBOX_PRINT(3, ACL_STATE, false); 618 BT_MBOX_PRINT(3, MSTR_STATE, false); 619 BT_MBOX_PRINT(3, OBX_STATE, false); 620 BT_MBOX_PRINT(3, OPEN_CON_2, false); 621 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 622 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 623 BT_MBOX_PRINT(3, INBAND_P, false); 624 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 625 BT_MBOX_PRINT(3, SSN_2, false); 626 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 627 628 return pos; 629} 630 631static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 632 size_t count, loff_t *ppos) 633{ 634 struct iwl_mvm *mvm = file->private_data; 635 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 636 char *buf; 637 int ret, pos = 0, bufsz = sizeof(char) * 1024; 638 639 buf = kmalloc(bufsz, GFP_KERNEL); 640 if (!buf) 641 return -ENOMEM; 642 643 mutex_lock(&mvm->mutex); 644 645 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 646 647 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 648 notif->bt_ci_compliance); 649 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 650 le32_to_cpu(notif->primary_ch_lut)); 651 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 652 le32_to_cpu(notif->secondary_ch_lut)); 653 pos += scnprintf(buf + pos, 654 bufsz - pos, "bt_activity_grading = %d\n", 655 le32_to_cpu(notif->bt_activity_grading)); 656 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 657 notif->rrc_status & 0xF); 658 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 659 notif->ttc_status & 0xF); 660 661 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 662 IWL_MVM_BT_COEX_SYNC2SCO); 663 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 664 IWL_MVM_BT_COEX_MPLUT); 665 666 mutex_unlock(&mvm->mutex); 667 668 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 669 kfree(buf); 670 671 return ret; 672} 673#undef BT_MBOX_PRINT 674 675static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 676 size_t count, loff_t *ppos) 677{ 678 struct iwl_mvm *mvm = file->private_data; 679 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 680 char buf[256]; 681 int bufsz = sizeof(buf); 682 int pos = 0; 683 684 mutex_lock(&mvm->mutex); 685 686 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 687 pos += scnprintf(buf + pos, bufsz - pos, 688 "\tPrimary Channel Bitmap 0x%016llx\n", 689 le64_to_cpu(cmd->bt_primary_ci)); 690 pos += scnprintf(buf + pos, bufsz - pos, 691 "\tSecondary Channel Bitmap 0x%016llx\n", 692 le64_to_cpu(cmd->bt_secondary_ci)); 693 694 mutex_unlock(&mvm->mutex); 695 696 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 697} 698 699static ssize_t 700iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 701 size_t count, loff_t *ppos) 702{ 703 u32 bt_tx_prio; 704 705 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 706 return -EINVAL; 707 if (bt_tx_prio > 4) 708 return -EINVAL; 709 710 mvm->bt_tx_prio = bt_tx_prio; 711 712 return count; 713} 714 715static ssize_t 716iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 717 size_t count, loff_t *ppos) 718{ 719 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 720 [BT_FORCE_ANT_DIS] = "dis", 721 [BT_FORCE_ANT_AUTO] = "auto", 722 [BT_FORCE_ANT_BT] = "bt", 723 [BT_FORCE_ANT_WIFI] = "wifi", 724 }; 725 int ret, bt_force_ant_mode; 726 727 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 728 if (ret < 0) 729 return ret; 730 731 bt_force_ant_mode = ret; 732 ret = 0; 733 mutex_lock(&mvm->mutex); 734 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 735 goto out; 736 737 mvm->bt_force_ant_mode = bt_force_ant_mode; 738 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 739 modes_str[mvm->bt_force_ant_mode]); 740 741 if (iwl_mvm_firmware_running(mvm)) 742 ret = iwl_mvm_send_bt_init_conf(mvm); 743 else 744 ret = 0; 745 746out: 747 mutex_unlock(&mvm->mutex); 748 return ret ?: count; 749} 750 751static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 752 size_t count, loff_t *ppos) 753{ 754 struct iwl_mvm *mvm = file->private_data; 755 char *buff, *pos, *endpos; 756 static const size_t bufsz = 1024; 757 char _fw_name_pre[FW_NAME_PRE_BUFSIZE]; 758 int ret; 759 760 buff = kmalloc(bufsz, GFP_KERNEL); 761 if (!buff) 762 return -ENOMEM; 763 764 pos = buff; 765 endpos = pos + bufsz; 766 767 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 768 iwl_drv_get_fwname_pre(mvm->trans, _fw_name_pre)); 769 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 770 mvm->fwrt.fw->human_readable); 771 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 772 mvm->fwrt.trans->name); 773 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 774 mvm->fwrt.dev->bus->name); 775 776 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 777 kfree(buff); 778 779 return ret; 780} 781 782static ssize_t iwl_dbgfs_tas_get_status_read(struct file *file, 783 char __user *user_buf, 784 size_t count, loff_t *ppos) 785{ 786 struct iwl_mvm *mvm = file->private_data; 787 struct iwl_mvm_tas_status_resp tas_rsp; 788 struct iwl_mvm_tas_status_resp *rsp = &tas_rsp; 789 static const size_t bufsz = 1024; 790 char *buff, *pos, *endpos; 791 const char * const tas_dis_reason[TAS_DISABLED_REASON_MAX] = { 792 [TAS_DISABLED_DUE_TO_BIOS] = 793 "Due To BIOS", 794 [TAS_DISABLED_DUE_TO_SAR_6DBM] = 795 "Due To SAR Limit Less Than 6 dBm", 796 [TAS_DISABLED_REASON_INVALID] = 797 "N/A", 798 }; 799 const char * const tas_current_status[TAS_DYNA_STATUS_MAX] = { 800 [TAS_DYNA_INACTIVE] = "INACTIVE", 801 [TAS_DYNA_INACTIVE_MVM_MODE] = 802 "inactive due to mvm mode", 803 [TAS_DYNA_INACTIVE_TRIGGER_MODE] = 804 "inactive due to trigger mode", 805 [TAS_DYNA_INACTIVE_BLOCK_LISTED] = 806 "inactive due to block listed", 807 [TAS_DYNA_INACTIVE_UHB_NON_US] = 808 "inactive due to uhb non US", 809 [TAS_DYNA_ACTIVE] = "ACTIVE", 810 }; 811 struct iwl_host_cmd hcmd = { 812 .id = WIDE_ID(DEBUG_GROUP, GET_TAS_STATUS), 813 .flags = CMD_WANT_SKB, 814 .len = { 0, }, 815 .data = { NULL, }, 816 }; 817 int ret, i, tmp; 818 bool tas_enabled = false; 819 unsigned long dyn_status; 820 821 if (!iwl_mvm_firmware_running(mvm)) 822 return -ENODEV; 823 824 mutex_lock(&mvm->mutex); 825 ret = iwl_mvm_send_cmd(mvm, &hcmd); 826 mutex_unlock(&mvm->mutex); 827 if (ret < 0) 828 return ret; 829 830 buff = kzalloc(bufsz, GFP_KERNEL); 831 if (!buff) 832 return -ENOMEM; 833 pos = buff; 834 endpos = pos + bufsz; 835 836 rsp = (void *)hcmd.resp_pkt->data; 837 838 pos += scnprintf(pos, endpos - pos, "TAS Conclusion:\n"); 839 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 840 if (rsp->tas_status_mac[i].band != TAS_LMAC_BAND_INVALID && 841 rsp->tas_status_mac[i].dynamic_status & BIT(TAS_DYNA_ACTIVE)) { 842 pos += scnprintf(pos, endpos - pos, "\tON for "); 843 switch (rsp->tas_status_mac[i].band) { 844 case TAS_LMAC_BAND_HB: 845 pos += scnprintf(pos, endpos - pos, "HB\n"); 846 break; 847 case TAS_LMAC_BAND_LB: 848 pos += scnprintf(pos, endpos - pos, "LB\n"); 849 break; 850 case TAS_LMAC_BAND_UHB: 851 pos += scnprintf(pos, endpos - pos, "UHB\n"); 852 break; 853 case TAS_LMAC_BAND_INVALID: 854 pos += scnprintf(pos, endpos - pos, 855 "INVALID BAND\n"); 856 break; 857 default: 858 pos += scnprintf(pos, endpos - pos, 859 "Unsupported band (%d)\n", 860 rsp->tas_status_mac[i].band); 861 goto out; 862 } 863 tas_enabled = true; 864 } 865 } 866 if (!tas_enabled) 867 pos += scnprintf(pos, endpos - pos, "\tOFF\n"); 868 869 pos += scnprintf(pos, endpos - pos, "TAS Report\n"); 870 pos += scnprintf(pos, endpos - pos, "TAS FW version: %d\n", 871 rsp->tas_fw_version); 872 pos += scnprintf(pos, endpos - pos, "Is UHB enabled for USA?: %s\n", 873 rsp->is_uhb_for_usa_enable ? "True" : "False"); 874 pos += scnprintf(pos, endpos - pos, "Current MCC: 0x%x\n", 875 le16_to_cpu(rsp->curr_mcc)); 876 877 pos += scnprintf(pos, endpos - pos, "Block list entries:"); 878 for (i = 0; i < IWL_WTAS_BLACK_LIST_MAX; i++) 879 pos += scnprintf(pos, endpos - pos, " 0x%x", 880 le16_to_cpu(rsp->block_list[i])); 881 882 pos += scnprintf(pos, endpos - pos, "\nOEM name: %s\n", 883 dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>"); 884 pos += scnprintf(pos, endpos - pos, "\tVendor In Approved List: %s\n", 885 iwl_is_tas_approved() ? "YES" : "NO"); 886 pos += scnprintf(pos, endpos - pos, 887 "\tDo TAS Support Dual Radio?: %s\n", 888 rsp->in_dual_radio ? "TRUE" : "FALSE"); 889 890 for (i = 0; i < rsp->in_dual_radio + 1; i++) { 891 if (rsp->tas_status_mac[i].static_status == 0) { 892 pos += scnprintf(pos, endpos - pos, 893 "Static status: disabled\n"); 894 pos += scnprintf(pos, endpos - pos, 895 "Static disabled reason: %s (0)\n", 896 tas_dis_reason[0]); 897 goto out; 898 } 899 900 pos += scnprintf(pos, endpos - pos, "TAS status for "); 901 switch (rsp->tas_status_mac[i].band) { 902 case TAS_LMAC_BAND_HB: 903 pos += scnprintf(pos, endpos - pos, "High band\n"); 904 break; 905 case TAS_LMAC_BAND_LB: 906 pos += scnprintf(pos, endpos - pos, "Low band\n"); 907 break; 908 case TAS_LMAC_BAND_UHB: 909 pos += scnprintf(pos, endpos - pos, 910 "Ultra high band\n"); 911 break; 912 case TAS_LMAC_BAND_INVALID: 913 pos += scnprintf(pos, endpos - pos, 914 "INVALID band\n"); 915 break; 916 default: 917 pos += scnprintf(pos, endpos - pos, 918 "Unsupported band (%d)\n", 919 rsp->tas_status_mac[i].band); 920 goto out; 921 } 922 pos += scnprintf(pos, endpos - pos, "Static status: %sabled\n", 923 rsp->tas_status_mac[i].static_status ? 924 "En" : "Dis"); 925 pos += scnprintf(pos, endpos - pos, 926 "\tStatic Disabled Reason: "); 927 if (rsp->tas_status_mac[i].static_dis_reason < TAS_DISABLED_REASON_MAX) 928 pos += scnprintf(pos, endpos - pos, "%s (%d)\n", 929 tas_dis_reason[rsp->tas_status_mac[i].static_dis_reason], 930 rsp->tas_status_mac[i].static_dis_reason); 931 else 932 pos += scnprintf(pos, endpos - pos, 933 "unsupported value (%d)\n", 934 rsp->tas_status_mac[i].static_dis_reason); 935 936 pos += scnprintf(pos, endpos - pos, "Dynamic status:\n"); 937 dyn_status = (rsp->tas_status_mac[i].dynamic_status); 938 for_each_set_bit(tmp, &dyn_status, sizeof(dyn_status)) { 939 if (tmp >= 0 && tmp < TAS_DYNA_STATUS_MAX) 940 pos += scnprintf(pos, endpos - pos, 941 "\t%s (%d)\n", 942 tas_current_status[tmp], tmp); 943 } 944 945 pos += scnprintf(pos, endpos - pos, 946 "Is near disconnection?: %s\n", 947 rsp->tas_status_mac[i].near_disconnection ? 948 "True" : "False"); 949 tmp = le16_to_cpu(rsp->tas_status_mac[i].max_reg_pwr_limit); 950 pos += scnprintf(pos, endpos - pos, 951 "Max. regulatory pwr limit (dBm): %d.%03d\n", 952 tmp / 8, 125 * (tmp % 8)); 953 tmp = le16_to_cpu(rsp->tas_status_mac[i].sar_limit); 954 pos += scnprintf(pos, endpos - pos, 955 "SAR limit (dBm): %d.%03d\n", 956 tmp / 8, 125 * (tmp % 8)); 957 } 958 959out: 960 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 961 kfree(buff); 962 iwl_free_resp(&hcmd); 963 return ret; 964} 965 966static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file, 967 char __user *user_buf, 968 size_t count, loff_t *ppos) 969{ 970 struct iwl_mvm *mvm = file->private_data; 971 char *buf; 972 size_t bufsz; 973 int pos; 974 ssize_t ret; 975 976 bufsz = mvm->fw->phy_integration_ver_len + 2; 977 buf = kmalloc(bufsz, GFP_KERNEL); 978 if (!buf) 979 return -ENOMEM; 980 981 pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len, 982 mvm->fw->phy_integration_ver); 983 984 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 985 986 kfree(buf); 987 return ret; 988} 989 990#define PRINT_STATS_LE32(_struct, _memb) \ 991 pos += scnprintf(buf + pos, bufsz - pos, \ 992 fmt_table, #_memb, \ 993 le32_to_cpu(_struct->_memb)) 994 995static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 996 char __user *user_buf, size_t count, 997 loff_t *ppos) 998{ 999 struct iwl_mvm *mvm = file->private_data; 1000 static const char *fmt_table = "\t%-30s %10u\n"; 1001 static const char *fmt_header = "%-32s\n"; 1002 int pos = 0; 1003 char *buf; 1004 int ret; 1005 size_t bufsz; 1006 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1007 WIDE_ID(SYSTEM_GROUP, 1008 SYSTEM_STATISTICS_CMD), 1009 IWL_FW_CMD_VER_UNKNOWN); 1010 1011 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 1012 return -EOPNOTSUPP; 1013 1014 if (iwl_mvm_has_new_rx_stats_api(mvm)) 1015 bufsz = ((sizeof(struct mvm_statistics_rx) / 1016 sizeof(__le32)) * 43) + (4 * 33) + 1; 1017 else 1018 /* 43 = size of each data line; 33 = size of each header */ 1019 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 1020 sizeof(__le32)) * 43) + (4 * 33) + 1; 1021 1022 buf = kzalloc(bufsz, GFP_KERNEL); 1023 if (!buf) 1024 return -ENOMEM; 1025 1026 mutex_lock(&mvm->mutex); 1027 1028 if (iwl_mvm_firmware_running(mvm)) 1029 iwl_mvm_request_statistics(mvm, false); 1030 1031 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1032 "Statistics_Rx - OFDM"); 1033 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1034 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 1035 1036 PRINT_STATS_LE32(ofdm, ina_cnt); 1037 PRINT_STATS_LE32(ofdm, fina_cnt); 1038 PRINT_STATS_LE32(ofdm, plcp_err); 1039 PRINT_STATS_LE32(ofdm, crc32_err); 1040 PRINT_STATS_LE32(ofdm, overrun_err); 1041 PRINT_STATS_LE32(ofdm, early_overrun_err); 1042 PRINT_STATS_LE32(ofdm, crc32_good); 1043 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 1044 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 1045 PRINT_STATS_LE32(ofdm, sfd_timeout); 1046 PRINT_STATS_LE32(ofdm, fina_timeout); 1047 PRINT_STATS_LE32(ofdm, unresponded_rts); 1048 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 1049 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 1050 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 1051 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1052 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1053 PRINT_STATS_LE32(ofdm, mh_format_err); 1054 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 1055 PRINT_STATS_LE32(ofdm, reserved); 1056 } else { 1057 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 1058 1059 PRINT_STATS_LE32(ofdm, unresponded_rts); 1060 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 1061 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 1062 PRINT_STATS_LE32(ofdm, dsp_self_kill); 1063 PRINT_STATS_LE32(ofdm, reserved); 1064 } 1065 1066 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1067 "Statistics_Rx - CCK"); 1068 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1069 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 1070 1071 PRINT_STATS_LE32(cck, ina_cnt); 1072 PRINT_STATS_LE32(cck, fina_cnt); 1073 PRINT_STATS_LE32(cck, plcp_err); 1074 PRINT_STATS_LE32(cck, crc32_err); 1075 PRINT_STATS_LE32(cck, overrun_err); 1076 PRINT_STATS_LE32(cck, early_overrun_err); 1077 PRINT_STATS_LE32(cck, crc32_good); 1078 PRINT_STATS_LE32(cck, false_alarm_cnt); 1079 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 1080 PRINT_STATS_LE32(cck, sfd_timeout); 1081 PRINT_STATS_LE32(cck, fina_timeout); 1082 PRINT_STATS_LE32(cck, unresponded_rts); 1083 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1084 PRINT_STATS_LE32(cck, sent_ack_cnt); 1085 PRINT_STATS_LE32(cck, sent_cts_cnt); 1086 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1087 PRINT_STATS_LE32(cck, dsp_self_kill); 1088 PRINT_STATS_LE32(cck, mh_format_err); 1089 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 1090 PRINT_STATS_LE32(cck, reserved); 1091 } else { 1092 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 1093 1094 PRINT_STATS_LE32(cck, unresponded_rts); 1095 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 1096 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 1097 PRINT_STATS_LE32(cck, dsp_self_kill); 1098 PRINT_STATS_LE32(cck, reserved); 1099 } 1100 1101 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1102 "Statistics_Rx - GENERAL"); 1103 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1104 struct mvm_statistics_rx_non_phy_v3 *general = 1105 &mvm->rx_stats_v3.general; 1106 1107 PRINT_STATS_LE32(general, bogus_cts); 1108 PRINT_STATS_LE32(general, bogus_ack); 1109 PRINT_STATS_LE32(general, non_bssid_frames); 1110 PRINT_STATS_LE32(general, filtered_frames); 1111 PRINT_STATS_LE32(general, non_channel_beacons); 1112 PRINT_STATS_LE32(general, channel_beacons); 1113 PRINT_STATS_LE32(general, num_missed_bcon); 1114 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1115 PRINT_STATS_LE32(general, ina_detection_search_time); 1116 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1117 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1118 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1119 PRINT_STATS_LE32(general, interference_data_flag); 1120 PRINT_STATS_LE32(general, channel_load); 1121 PRINT_STATS_LE32(general, dsp_false_alarms); 1122 PRINT_STATS_LE32(general, beacon_rssi_a); 1123 PRINT_STATS_LE32(general, beacon_rssi_b); 1124 PRINT_STATS_LE32(general, beacon_rssi_c); 1125 PRINT_STATS_LE32(general, beacon_energy_a); 1126 PRINT_STATS_LE32(general, beacon_energy_b); 1127 PRINT_STATS_LE32(general, beacon_energy_c); 1128 PRINT_STATS_LE32(general, num_bt_kills); 1129 PRINT_STATS_LE32(general, mac_id); 1130 PRINT_STATS_LE32(general, directed_data_mpdu); 1131 } else { 1132 struct mvm_statistics_rx_non_phy *general = 1133 &mvm->rx_stats.general; 1134 1135 PRINT_STATS_LE32(general, bogus_cts); 1136 PRINT_STATS_LE32(general, bogus_ack); 1137 PRINT_STATS_LE32(general, non_channel_beacons); 1138 PRINT_STATS_LE32(general, channel_beacons); 1139 PRINT_STATS_LE32(general, num_missed_bcon); 1140 PRINT_STATS_LE32(general, adc_rx_saturation_time); 1141 PRINT_STATS_LE32(general, ina_detection_search_time); 1142 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 1143 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 1144 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 1145 PRINT_STATS_LE32(general, interference_data_flag); 1146 PRINT_STATS_LE32(general, channel_load); 1147 PRINT_STATS_LE32(general, beacon_rssi_a); 1148 PRINT_STATS_LE32(general, beacon_rssi_b); 1149 PRINT_STATS_LE32(general, beacon_rssi_c); 1150 PRINT_STATS_LE32(general, beacon_energy_a); 1151 PRINT_STATS_LE32(general, beacon_energy_b); 1152 PRINT_STATS_LE32(general, beacon_energy_c); 1153 PRINT_STATS_LE32(general, num_bt_kills); 1154 PRINT_STATS_LE32(general, mac_id); 1155 } 1156 1157 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 1158 "Statistics_Rx - HT"); 1159 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1160 struct mvm_statistics_rx_ht_phy_v1 *ht = 1161 &mvm->rx_stats_v3.ofdm_ht; 1162 1163 PRINT_STATS_LE32(ht, plcp_err); 1164 PRINT_STATS_LE32(ht, overrun_err); 1165 PRINT_STATS_LE32(ht, early_overrun_err); 1166 PRINT_STATS_LE32(ht, crc32_good); 1167 PRINT_STATS_LE32(ht, crc32_err); 1168 PRINT_STATS_LE32(ht, mh_format_err); 1169 PRINT_STATS_LE32(ht, agg_crc32_good); 1170 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1171 PRINT_STATS_LE32(ht, agg_cnt); 1172 PRINT_STATS_LE32(ht, unsupport_mcs); 1173 } else { 1174 struct mvm_statistics_rx_ht_phy *ht = 1175 &mvm->rx_stats.ofdm_ht; 1176 1177 PRINT_STATS_LE32(ht, mh_format_err); 1178 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 1179 PRINT_STATS_LE32(ht, agg_cnt); 1180 PRINT_STATS_LE32(ht, unsupport_mcs); 1181 } 1182 1183 mutex_unlock(&mvm->mutex); 1184 1185 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1186 kfree(buf); 1187 1188 return ret; 1189} 1190#undef PRINT_STAT_LE32 1191 1192static ssize_t iwl_dbgfs_fw_system_stats_read(struct file *file, 1193 char __user *user_buf, 1194 size_t count, loff_t *ppos) 1195{ 1196 char *buff, *pos, *endpos; 1197 int ret; 1198 size_t bufsz; 1199 int i; 1200 struct iwl_mvm_vif *mvmvif; 1201 struct ieee80211_vif *vif; 1202 struct iwl_mvm *mvm = file->private_data; 1203 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1204 WIDE_ID(SYSTEM_GROUP, 1205 SYSTEM_STATISTICS_CMD), 1206 IWL_FW_CMD_VER_UNKNOWN); 1207 1208 /* in case of a wrong cmd version, allocate buffer only for error msg */ 1209 bufsz = (cmd_ver == 1) ? 4096 : 64; 1210 1211 buff = kzalloc(bufsz, GFP_KERNEL); 1212 if (!buff) 1213 return -ENOMEM; 1214 1215 pos = buff; 1216 endpos = pos + bufsz; 1217 1218 if (cmd_ver != 1) { 1219 pos += scnprintf(pos, endpos - pos, 1220 "System stats not supported:%d\n", cmd_ver); 1221 goto send_out; 1222 } 1223 1224 mutex_lock(&mvm->mutex); 1225 if (iwl_mvm_firmware_running(mvm)) 1226 iwl_mvm_request_statistics(mvm, false); 1227 1228 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1229 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1230 if (!vif) 1231 continue; 1232 1233 if (vif->type == NL80211_IFTYPE_STATION) 1234 break; 1235 } 1236 1237 if (i == NUM_MAC_INDEX_DRIVER || !vif) { 1238 pos += scnprintf(pos, endpos - pos, "vif is NULL\n"); 1239 goto release_send_out; 1240 } 1241 1242 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1243 if (!mvmvif) { 1244 pos += scnprintf(pos, endpos - pos, "mvmvif is NULL\n"); 1245 goto release_send_out; 1246 } 1247 1248 for_each_mvm_vif_valid_link(mvmvif, i) { 1249 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[i]; 1250 1251 pos += scnprintf(pos, endpos - pos, 1252 "link_id %d", i); 1253 pos += scnprintf(pos, endpos - pos, 1254 " num_beacons %d", 1255 link_info->beacon_stats.num_beacons); 1256 pos += scnprintf(pos, endpos - pos, 1257 " accu_num_beacons %d", 1258 link_info->beacon_stats.accu_num_beacons); 1259 pos += scnprintf(pos, endpos - pos, 1260 " avg_signal %d\n", 1261 link_info->beacon_stats.avg_signal); 1262 } 1263 1264 pos += scnprintf(pos, endpos - pos, 1265 "radio_stats.rx_time %lld\n", 1266 mvm->radio_stats.rx_time); 1267 pos += scnprintf(pos, endpos - pos, 1268 "radio_stats.tx_time %lld\n", 1269 mvm->radio_stats.tx_time); 1270 pos += scnprintf(pos, endpos - pos, 1271 "accu_radio_stats.rx_time %lld\n", 1272 mvm->accu_radio_stats.rx_time); 1273 pos += scnprintf(pos, endpos - pos, 1274 "accu_radio_stats.tx_time %lld\n", 1275 mvm->accu_radio_stats.tx_time); 1276 1277release_send_out: 1278 mutex_unlock(&mvm->mutex); 1279 1280send_out: 1281 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1282 kfree(buff); 1283 1284 return ret; 1285} 1286 1287static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 1288 char __user *user_buf, size_t count, 1289 loff_t *ppos, 1290 struct iwl_mvm_frame_stats *stats) 1291{ 1292 char *buff, *pos, *endpos; 1293 int idx, i; 1294 int ret; 1295 static const size_t bufsz = 1024; 1296 1297 buff = kmalloc(bufsz, GFP_KERNEL); 1298 if (!buff) 1299 return -ENOMEM; 1300 1301 spin_lock_bh(&mvm->drv_stats_lock); 1302 1303 pos = buff; 1304 endpos = pos + bufsz; 1305 1306 pos += scnprintf(pos, endpos - pos, 1307 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 1308 stats->legacy_frames, 1309 stats->ht_frames, 1310 stats->vht_frames); 1311 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 1312 stats->bw_20_frames, 1313 stats->bw_40_frames, 1314 stats->bw_80_frames); 1315 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 1316 stats->ngi_frames, 1317 stats->sgi_frames); 1318 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 1319 stats->siso_frames, 1320 stats->mimo2_frames); 1321 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 1322 stats->fail_frames, 1323 stats->success_frames); 1324 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 1325 stats->agg_frames); 1326 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 1327 stats->ampdu_count); 1328 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 1329 stats->ampdu_count > 0 ? 1330 (stats->agg_frames / stats->ampdu_count) : 0); 1331 1332 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 1333 1334 idx = stats->last_frame_idx - 1; 1335 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 1336 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 1337 if (stats->last_rates[idx] == 0) 1338 continue; 1339 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 1340 (int)(ARRAY_SIZE(stats->last_rates) - i)); 1341 pos += rs_pretty_print_rate_v1(pos, endpos - pos, 1342 stats->last_rates[idx]); 1343 if (pos < endpos - 1) 1344 *pos++ = '\n'; 1345 } 1346 spin_unlock_bh(&mvm->drv_stats_lock); 1347 1348 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 1349 kfree(buff); 1350 1351 return ret; 1352} 1353 1354static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 1355 char __user *user_buf, size_t count, 1356 loff_t *ppos) 1357{ 1358 struct iwl_mvm *mvm = file->private_data; 1359 1360 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1361 &mvm->drv_rx_stats); 1362} 1363 1364static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1365 size_t count, loff_t *ppos) 1366{ 1367 int __maybe_unused ret; 1368 1369 if (!iwl_mvm_firmware_running(mvm)) 1370 return -EIO; 1371 1372 mutex_lock(&mvm->mutex); 1373 1374 /* allow one more restart that we're provoking here */ 1375 if (mvm->fw_restart >= 0) 1376 mvm->fw_restart++; 1377 1378 if (count == 6 && !strcmp(buf, "nolog\n")) { 1379 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1380 set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status); 1381 } 1382 1383 /* take the return value to make compiler happy - it will fail anyway */ 1384 ret = iwl_mvm_send_cmd_pdu(mvm, 1385 WIDE_ID(LONG_GROUP, REPLY_ERROR), 1386 0, 0, NULL); 1387 1388 mutex_unlock(&mvm->mutex); 1389 1390 return count; 1391} 1392 1393static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1394 size_t count, loff_t *ppos) 1395{ 1396 if (!iwl_mvm_firmware_running(mvm)) 1397 return -EIO; 1398 1399 if (count == 6 && !strcmp(buf, "nolog\n")) 1400 set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status); 1401 1402 iwl_force_nmi(mvm->trans); 1403 1404 return count; 1405} 1406 1407static ssize_t 1408iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1409 char __user *user_buf, 1410 size_t count, loff_t *ppos) 1411{ 1412 struct iwl_mvm *mvm = file->private_data; 1413 int pos = 0; 1414 char buf[32]; 1415 const size_t bufsz = sizeof(buf); 1416 1417 /* print which antennas were set for the scan command by the user */ 1418 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1419 if (mvm->scan_rx_ant & ANT_A) 1420 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1421 if (mvm->scan_rx_ant & ANT_B) 1422 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1423 pos += scnprintf(buf + pos, bufsz - pos, " (%x)\n", mvm->scan_rx_ant); 1424 1425 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1426} 1427 1428static ssize_t 1429iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1430 size_t count, loff_t *ppos) 1431{ 1432 u8 scan_rx_ant; 1433 1434 if (!iwl_mvm_firmware_running(mvm)) 1435 return -EIO; 1436 1437 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1438 return -EINVAL; 1439 if (scan_rx_ant > ANT_ABC) 1440 return -EINVAL; 1441 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1442 return -EINVAL; 1443 1444 if (mvm->scan_rx_ant != scan_rx_ant) { 1445 mvm->scan_rx_ant = scan_rx_ant; 1446 if (fw_has_capa(&mvm->fw->ucode_capa, 1447 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1448 iwl_mvm_config_scan(mvm); 1449 } 1450 1451 return count; 1452} 1453 1454static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1455 char *buf, size_t count, 1456 loff_t *ppos) 1457{ 1458 struct iwl_rss_config_cmd cmd = { 1459 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1460 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1461 IWL_RSS_HASH_TYPE_IPV4_UDP | 1462 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1463 IWL_RSS_HASH_TYPE_IPV6_TCP | 1464 IWL_RSS_HASH_TYPE_IPV6_UDP | 1465 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1466 }; 1467 int ret, i, num_repeats, nbytes = count / 2; 1468 1469 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1470 if (ret) 1471 return ret; 1472 1473 /* 1474 * The input is the redirection table, partial or full. 1475 * Repeat the pattern if needed. 1476 * For example, input of 01020F will be repeated 42 times, 1477 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1478 * queues 3 - 14). 1479 */ 1480 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1481 for (i = 1; i < num_repeats; i++) 1482 memcpy(&cmd.indirection_table[i * nbytes], 1483 cmd.indirection_table, nbytes); 1484 /* handle cut in the middle pattern for the last places */ 1485 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1486 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1487 1488 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1489 1490 mutex_lock(&mvm->mutex); 1491 if (iwl_mvm_firmware_running(mvm)) 1492 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1493 sizeof(cmd), &cmd); 1494 else 1495 ret = 0; 1496 mutex_unlock(&mvm->mutex); 1497 1498 return ret ?: count; 1499} 1500 1501static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1502 char *buf, size_t count, 1503 loff_t *ppos) 1504{ 1505 struct iwl_op_mode *opmode = container_of((void *)mvm, 1506 struct iwl_op_mode, 1507 op_mode_specific); 1508 struct iwl_rx_cmd_buffer rxb = { 1509 ._rx_page_order = 0, 1510 .truesize = 0, /* not used */ 1511 ._offset = 0, 1512 }; 1513 struct iwl_rx_packet *pkt; 1514 int bin_len = count / 2; 1515 int ret = -EINVAL; 1516 1517 if (!iwl_mvm_firmware_running(mvm)) 1518 return -EIO; 1519 1520 /* supporting only MQ RX */ 1521 if (!mvm->trans->trans_cfg->mq_rx_supported) 1522 return -EOPNOTSUPP; 1523 1524 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1525 if (!rxb._page) 1526 return -ENOMEM; 1527 pkt = rxb_addr(&rxb); 1528 1529 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1530 if (ret) 1531 goto out; 1532 1533 /* avoid invalid memory access and malformed packet */ 1534 if (bin_len < sizeof(*pkt) || 1535 bin_len != sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) 1536 goto out; 1537 1538 local_bh_disable(); 1539 iwl_mvm_rx_mq(opmode, NULL, &rxb); 1540 local_bh_enable(); 1541 ret = 0; 1542 1543out: 1544 iwl_free_rxb(&rxb); 1545 1546 return ret ?: count; 1547} 1548 1549static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) 1550{ 1551 struct ieee80211_vif *vif; 1552 struct iwl_mvm_vif *mvmvif; 1553 struct sk_buff *beacon; 1554 struct ieee80211_tx_info *info; 1555 struct iwl_mac_beacon_cmd beacon_cmd = {}; 1556 unsigned int link_id; 1557 u8 rate; 1558 int i; 1559 1560 len /= 2; 1561 1562 /* Element len should be represented by u8 */ 1563 if (len >= U8_MAX) 1564 return -EINVAL; 1565 1566 if (!iwl_mvm_firmware_running(mvm)) 1567 return -EIO; 1568 1569 if (!iwl_mvm_has_new_tx_api(mvm) && 1570 !fw_has_api(&mvm->fw->ucode_capa, 1571 IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 1572 return -EINVAL; 1573 1574 mutex_lock(&mvm->mutex); 1575 1576 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 1577 vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, false); 1578 if (!vif) 1579 continue; 1580 1581 if (vif->type == NL80211_IFTYPE_AP) 1582 break; 1583 } 1584 1585 if (i == NUM_MAC_INDEX_DRIVER || !vif) 1586 goto out_err; 1587 1588 mvm->hw->extra_beacon_tailroom = len; 1589 1590 beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL, 0); 1591 if (!beacon) 1592 goto out_err; 1593 1594 if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { 1595 dev_kfree_skb(beacon); 1596 goto out_err; 1597 } 1598 1599 mvm->beacon_inject_active = true; 1600 1601 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1602 info = IEEE80211_SKB_CB(beacon); 1603 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); 1604 1605 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1606 beacon_cmd.flags = 1607 cpu_to_le16(iwl_mvm_mac_ctxt_get_beacon_flags(mvm->fw, 1608 rate)); 1609 beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 1610 if (iwl_fw_lookup_cmd_ver(mvm->fw, BEACON_TEMPLATE_CMD, 0) > 12) 1611 beacon_cmd.link_id = 1612 cpu_to_le32(mvmvif->link[link_id]->fw_link_id); 1613 else 1614 beacon_cmd.link_id = cpu_to_le32((u32)mvmvif->id); 1615 1616 iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 1617 &beacon_cmd.tim_size, 1618 beacon->data, beacon->len); 1619 1620 iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 1621 sizeof(beacon_cmd)); 1622 } 1623 mutex_unlock(&mvm->mutex); 1624 1625 dev_kfree_skb(beacon); 1626 1627 return 0; 1628 1629out_err: 1630 mutex_unlock(&mvm->mutex); 1631 return -EINVAL; 1632} 1633 1634static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, 1635 char *buf, size_t count, 1636 loff_t *ppos) 1637{ 1638 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); 1639 1640 mvm->hw->extra_beacon_tailroom = 0; 1641 return ret ?: count; 1642} 1643 1644static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, 1645 char *buf, 1646 size_t count, 1647 loff_t *ppos) 1648{ 1649 int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); 1650 1651 mvm->hw->extra_beacon_tailroom = 0; 1652 mvm->beacon_inject_active = false; 1653 return ret ?: count; 1654} 1655 1656static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1657 char __user *user_buf, 1658 size_t count, loff_t *ppos) 1659{ 1660 struct iwl_mvm *mvm = file->private_data; 1661 int conf; 1662 char buf[8]; 1663 const size_t bufsz = sizeof(buf); 1664 int pos = 0; 1665 1666 mutex_lock(&mvm->mutex); 1667 conf = mvm->fwrt.dump.conf; 1668 mutex_unlock(&mvm->mutex); 1669 1670 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1671 1672 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1673} 1674 1675static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1676 char *buf, size_t count, 1677 loff_t *ppos) 1678{ 1679 unsigned int conf_id; 1680 int ret; 1681 1682 if (!iwl_mvm_firmware_running(mvm)) 1683 return -EIO; 1684 1685 ret = kstrtouint(buf, 0, &conf_id); 1686 if (ret) 1687 return ret; 1688 1689 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1690 return -EINVAL; 1691 1692 mutex_lock(&mvm->mutex); 1693 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1694 mutex_unlock(&mvm->mutex); 1695 1696 return ret ?: count; 1697} 1698 1699static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1700 char *buf, size_t count, 1701 loff_t *ppos) 1702{ 1703 if (count == 0) 1704 return 0; 1705 1706 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, 1707 NULL); 1708 1709 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1710 (count - 1), NULL); 1711 1712 return count; 1713} 1714 1715static ssize_t iwl_dbgfs_fw_dbg_clear_write(struct iwl_mvm *mvm, 1716 char *buf, size_t count, 1717 loff_t *ppos) 1718{ 1719 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1720 return -EOPNOTSUPP; 1721 1722 mutex_lock(&mvm->mutex); 1723 iwl_fw_dbg_clear_monitor_buf(&mvm->fwrt); 1724 mutex_unlock(&mvm->mutex); 1725 1726 return count; 1727} 1728 1729static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm, 1730 char *buf, size_t count, 1731 loff_t *ppos) 1732{ 1733 u32 timepoint; 1734 1735 if (kstrtou32(buf, 0, &timepoint)) 1736 return -EINVAL; 1737 1738 if (timepoint == IWL_FW_INI_TIME_POINT_INVALID || 1739 timepoint >= IWL_FW_INI_TIME_POINT_NUM) 1740 return -EINVAL; 1741 1742 iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL); 1743 1744 return count; 1745} 1746 1747#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1748 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1749#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1750 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1751#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1752 debugfs_create_file(alias, mode, parent, mvm, \ 1753 &iwl_dbgfs_##name##_ops); \ 1754 } while (0) 1755#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1756 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1757 1758static ssize_t 1759_iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *, 1760 struct iwl_mvm_sta *, 1761 struct iwl_mvm *, 1762 struct iwl_mvm_link_sta *, 1763 char *, 1764 size_t, loff_t *), 1765 struct file *file, 1766 char *buf, size_t buf_size, loff_t *ppos) 1767{ 1768 struct ieee80211_link_sta *link_sta = file->private_data; 1769 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); 1770 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; 1771 struct iwl_mvm_link_sta *mvm_link_sta; 1772 ssize_t ret; 1773 1774 mutex_lock(&mvm->mutex); 1775 1776 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], 1777 lockdep_is_held(&mvm->mutex)); 1778 if (WARN_ON(!mvm_link_sta)) { 1779 mutex_unlock(&mvm->mutex); 1780 return -ENODEV; 1781 } 1782 1783 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos); 1784 1785 mutex_unlock(&mvm->mutex); 1786 1787 return ret; 1788} 1789 1790static ssize_t 1791_iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *, 1792 struct iwl_mvm_sta *, 1793 struct iwl_mvm *, 1794 struct iwl_mvm_link_sta *, 1795 char __user *, 1796 size_t, loff_t *), 1797 struct file *file, 1798 char __user *user_buf, size_t count, loff_t *ppos) 1799{ 1800 struct ieee80211_link_sta *link_sta = file->private_data; 1801 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta); 1802 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm; 1803 struct iwl_mvm_link_sta *mvm_link_sta; 1804 ssize_t ret; 1805 1806 mutex_lock(&mvm->mutex); 1807 1808 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id], 1809 lockdep_is_held(&mvm->mutex)); 1810 if (WARN_ON(!mvm_link_sta)) { 1811 mutex_unlock(&mvm->mutex); 1812 return -ENODEV; 1813 } 1814 1815 ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos); 1816 1817 mutex_unlock(&mvm->mutex); 1818 1819 return ret; 1820} 1821 1822#define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen) \ 1823static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file, \ 1824 const char __user *user_buf, \ 1825 size_t count, loff_t *ppos) \ 1826{ \ 1827 char buf[buflen] = {}; \ 1828 size_t buf_size = min(count, sizeof(buf) - 1); \ 1829 \ 1830 if (copy_from_user(buf, user_buf, buf_size)) \ 1831 return -EFAULT; \ 1832 \ 1833 return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write, \ 1834 file, \ 1835 buf, buf_size, ppos); \ 1836} \ 1837 1838#define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1839static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file, \ 1840 char __user *user_buf, \ 1841 size_t count, loff_t *ppos) \ 1842{ \ 1843 return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read, \ 1844 file, \ 1845 user_buf, count, ppos); \ 1846} \ 1847 1848#define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ 1849MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ 1850static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1851 .write = _iwl_dbgfs_link_sta_##name##_write, \ 1852 .open = simple_open, \ 1853 .llseek = generic_file_llseek, \ 1854} 1855 1856#define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name) \ 1857MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1858static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1859 .read = _iwl_dbgfs_link_sta_##name##_read, \ 1860 .open = simple_open, \ 1861 .llseek = generic_file_llseek, \ 1862} 1863 1864#define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz) \ 1865MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name) \ 1866MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz) \ 1867static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = { \ 1868 .read = _iwl_dbgfs_link_sta_##name##_read, \ 1869 .write = _iwl_dbgfs_link_sta_##name##_write, \ 1870 .open = simple_open, \ 1871 .llseek = generic_file_llseek, \ 1872} 1873 1874#define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode) \ 1875 debugfs_create_file(alias, mode, parent, link_sta, \ 1876 &iwl_dbgfs_link_sta_##name##_ops) 1877#define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \ 1878 MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode) 1879 1880static ssize_t 1881iwl_dbgfs_prph_reg_read(struct file *file, 1882 char __user *user_buf, 1883 size_t count, loff_t *ppos) 1884{ 1885 struct iwl_mvm *mvm = file->private_data; 1886 int pos = 0; 1887 char buf[32]; 1888 const size_t bufsz = sizeof(buf); 1889 1890 if (!mvm->dbgfs_prph_reg_addr) 1891 return -EINVAL; 1892 1893 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1894 mvm->dbgfs_prph_reg_addr, 1895 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1896 1897 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1898} 1899 1900static ssize_t 1901iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1902 size_t count, loff_t *ppos) 1903{ 1904 u8 args; 1905 u32 value; 1906 1907 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1908 /* if we only want to set the reg address - nothing more to do */ 1909 if (args == 1) 1910 goto out; 1911 1912 /* otherwise, make sure we have both address and value */ 1913 if (args != 2) 1914 return -EINVAL; 1915 1916 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1917 1918out: 1919 return count; 1920} 1921 1922static ssize_t 1923iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1924 size_t count, loff_t *ppos) 1925{ 1926 int ret; 1927 1928 if (!iwl_mvm_firmware_running(mvm)) 1929 return -EIO; 1930 1931 mutex_lock(&mvm->mutex); 1932 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1933 mutex_unlock(&mvm->mutex); 1934 1935 return ret ?: count; 1936} 1937 1938struct iwl_mvm_sniffer_apply { 1939 struct iwl_mvm *mvm; 1940 u8 *bssid; 1941 u16 aid; 1942}; 1943 1944static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, 1945 struct iwl_rx_packet *pkt, void *data) 1946{ 1947 struct iwl_mvm_sniffer_apply *apply = data; 1948 1949 apply->mvm->cur_aid = cpu_to_le16(apply->aid); 1950 memcpy(apply->mvm->cur_bssid, apply->bssid, 1951 sizeof(apply->mvm->cur_bssid)); 1952 1953 return true; 1954} 1955 1956static ssize_t 1957iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1958 size_t count, loff_t *ppos) 1959{ 1960 struct iwl_notification_wait wait; 1961 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1962 struct iwl_mvm_sniffer_apply apply = { 1963 .mvm = mvm, 1964 }; 1965 u16 wait_cmds[] = { 1966 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 1967 }; 1968 u32 aid; 1969 int ret; 1970 1971 if (!iwl_mvm_firmware_running(mvm)) 1972 return -EIO; 1973 1974 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1975 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1976 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1977 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1978 if (ret != 7) 1979 return -EINVAL; 1980 1981 he_mon_cmd.aid = cpu_to_le16(aid); 1982 1983 apply.aid = aid; 1984 apply.bssid = (void *)he_mon_cmd.bssid; 1985 1986 mutex_lock(&mvm->mutex); 1987 1988 /* 1989 * Use the notification waiter to get our function triggered 1990 * in sequence with other RX. This ensures that frames we get 1991 * on the RX queue _before_ the new configuration is applied 1992 * still have mvm->cur_aid pointing to the old AID, and that 1993 * frames on the RX queue _after_ the firmware processed the 1994 * new configuration (and sent the response, synchronously) 1995 * get mvm->cur_aid correctly set to the new AID. 1996 */ 1997 iwl_init_notification_wait(&mvm->notif_wait, &wait, 1998 wait_cmds, ARRAY_SIZE(wait_cmds), 1999 iwl_mvm_sniffer_apply, &apply); 2000 2001 ret = iwl_mvm_send_cmd_pdu(mvm, 2002 WIDE_ID(DATA_PATH_GROUP, HE_AIR_SNIFFER_CONFIG_CMD), 2003 0, 2004 sizeof(he_mon_cmd), &he_mon_cmd); 2005 2006 /* no need to really wait, we already did anyway */ 2007 iwl_remove_notification(&mvm->notif_wait, &wait); 2008 2009 mutex_unlock(&mvm->mutex); 2010 2011 return ret ?: count; 2012} 2013 2014static ssize_t 2015iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, 2016 size_t count, loff_t *ppos) 2017{ 2018 struct iwl_mvm *mvm = file->private_data; 2019 u8 buf[32]; 2020 int len; 2021 2022 len = scnprintf(buf, sizeof(buf), 2023 "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", 2024 le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], 2025 mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], 2026 mvm->cur_bssid[4], mvm->cur_bssid[5]); 2027 2028 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2029} 2030 2031static ssize_t 2032iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 2033 size_t count, loff_t *ppos) 2034{ 2035 struct iwl_mvm *mvm = file->private_data; 2036 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 2037 unsigned int pos = 0; 2038 size_t bufsz = sizeof(buf); 2039 int i; 2040 2041 mutex_lock(&mvm->mutex); 2042 2043 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 2044 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 2045 mvm->uapsd_noagg_bssids[i].addr); 2046 2047 mutex_unlock(&mvm->mutex); 2048 2049 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2050} 2051 2052static ssize_t 2053iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm, 2054 char *buf, size_t count, loff_t *ppos) 2055{ 2056 int ret; 2057 struct iwl_ltr_config_cmd ltr_config = {0}; 2058 2059 if (!iwl_mvm_firmware_running(mvm)) 2060 return -EIO; 2061 2062 if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x", 2063 <r_config.flags, 2064 <r_config.static_long, 2065 <r_config.static_short, 2066 <r_config.ltr_cfg_values[0], 2067 <r_config.ltr_cfg_values[1], 2068 <r_config.ltr_cfg_values[2], 2069 <r_config.ltr_cfg_values[3]) != 7) { 2070 return -EINVAL; 2071 } 2072 2073 mutex_lock(&mvm->mutex); 2074 ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config), 2075 <r_config); 2076 mutex_unlock(&mvm->mutex); 2077 2078 if (ret) 2079 IWL_ERR(mvm, "failed to send ltr configuration cmd\n"); 2080 2081 return ret ?: count; 2082} 2083 2084static ssize_t iwl_dbgfs_rfi_freq_table_write(struct iwl_mvm *mvm, char *buf, 2085 size_t count, loff_t *ppos) 2086{ 2087 int ret = 0; 2088 u16 op_id; 2089 2090 if (kstrtou16(buf, 10, &op_id)) 2091 return -EINVAL; 2092 2093 /* value zero triggers re-sending the default table to the device */ 2094 if (!op_id) { 2095 mutex_lock(&mvm->mutex); 2096 ret = iwl_rfi_send_config_cmd(mvm, NULL); 2097 mutex_unlock(&mvm->mutex); 2098 } else { 2099 ret = -EOPNOTSUPP; /* in the future a new table will be added */ 2100 } 2101 2102 return ret ?: count; 2103} 2104 2105/* The size computation is as follows: 2106 * each number needs at most 3 characters, number of rows is the size of 2107 * the table; So, need 5 chars for the "freq: " part and each tuple afterwards 2108 * needs 6 characters for numbers and 5 for the punctuation around. 2109 */ 2110#define IWL_RFI_BUF_SIZE (IWL_RFI_LUT_INSTALLED_SIZE *\ 2111 (5 + IWL_RFI_LUT_ENTRY_CHANNELS_NUM * (6 + 5))) 2112 2113static ssize_t iwl_dbgfs_rfi_freq_table_read(struct file *file, 2114 char __user *user_buf, 2115 size_t count, loff_t *ppos) 2116{ 2117 struct iwl_mvm *mvm = file->private_data; 2118 struct iwl_rfi_freq_table_resp_cmd *resp; 2119 u32 status; 2120 char buf[IWL_RFI_BUF_SIZE]; 2121 int i, j, pos = 0; 2122 2123 resp = iwl_rfi_get_freq_table(mvm); 2124 if (IS_ERR(resp)) 2125 return PTR_ERR(resp); 2126 2127 status = le32_to_cpu(resp->status); 2128 if (status != RFI_FREQ_TABLE_OK) { 2129 scnprintf(buf, IWL_RFI_BUF_SIZE, "status = %d\n", status); 2130 goto out; 2131 } 2132 2133 for (i = 0; i < ARRAY_SIZE(resp->table); i++) { 2134 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "%d: ", 2135 resp->table[i].freq); 2136 2137 for (j = 0; j < ARRAY_SIZE(resp->table[i].channels); j++) 2138 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, 2139 "(%d, %d) ", 2140 resp->table[i].channels[j], 2141 resp->table[i].bands[j]); 2142 pos += scnprintf(buf + pos, IWL_RFI_BUF_SIZE - pos, "\n"); 2143 } 2144 2145out: 2146 kfree(resp); 2147 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2148} 2149 2150MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 2151 2152/* Device wide debugfs entries */ 2153MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 2154MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 2155MVM_DEBUGFS_WRITE_FILE_OPS(start_ctdp, 8); 2156MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 2157MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 2158MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 2159MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 2160MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 2161MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 2162MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 2163MVM_DEBUGFS_READ_FILE_OPS(stations); 2164MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data); 2165MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 2166MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 2167MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 2168MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 2169MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 2170MVM_DEBUGFS_READ_FILE_OPS(fw_system_stats); 2171MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 2172MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver); 2173MVM_DEBUGFS_READ_FILE_OPS(tas_get_status); 2174MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 2175MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 2176MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 2177MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 2178MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 2179MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 2180MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 2181MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_clear, 64); 2182MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64); 2183MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 2184 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 2185MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 2186MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); 2187MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); 2188 2189MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 2190 2191#ifdef CONFIG_ACPI 2192MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 2193MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable); 2194#endif 2195 2196MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16); 2197 2198MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); 2199 2200MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512); 2201MVM_DEBUGFS_READ_WRITE_FILE_OPS(rfi_freq_table, 16); 2202 2203static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 2204 size_t count, loff_t *ppos) 2205{ 2206 struct iwl_mvm *mvm = file->private_data; 2207 struct iwl_dbg_mem_access_cmd cmd = {}; 2208 struct iwl_dbg_mem_access_rsp *rsp; 2209 struct iwl_host_cmd hcmd = { 2210 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 2211 .data = { &cmd, }, 2212 .len = { sizeof(cmd) }, 2213 }; 2214 size_t delta; 2215 ssize_t ret, len; 2216 2217 if (!iwl_mvm_firmware_running(mvm)) 2218 return -EIO; 2219 2220 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 2221 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 2222 2223 /* Take care of alignment of both the position and the length */ 2224 delta = *ppos & 0x3; 2225 cmd.addr = cpu_to_le32(*ppos - delta); 2226 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 2227 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 2228 2229 mutex_lock(&mvm->mutex); 2230 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2231 mutex_unlock(&mvm->mutex); 2232 2233 if (ret < 0) 2234 return ret; 2235 2236 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 2237 ret = -EIO; 2238 goto out; 2239 } 2240 2241 rsp = (void *)hcmd.resp_pkt->data; 2242 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 2243 ret = -ENXIO; 2244 goto out; 2245 } 2246 2247 len = min((size_t)le32_to_cpu(rsp->len) << 2, 2248 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 2249 len = min(len - delta, count); 2250 if (len < 0) { 2251 ret = -EFAULT; 2252 goto out; 2253 } 2254 2255 ret = len - copy_to_user(user_buf, (u8 *)rsp->data + delta, len); 2256 *ppos += ret; 2257 2258out: 2259 iwl_free_resp(&hcmd); 2260 return ret; 2261} 2262 2263static ssize_t iwl_dbgfs_mem_write(struct file *file, 2264 const char __user *user_buf, size_t count, 2265 loff_t *ppos) 2266{ 2267 struct iwl_mvm *mvm = file->private_data; 2268 struct iwl_dbg_mem_access_cmd *cmd; 2269 struct iwl_dbg_mem_access_rsp *rsp; 2270 struct iwl_host_cmd hcmd = {}; 2271 size_t cmd_size; 2272 size_t data_size; 2273 u32 op, len; 2274 ssize_t ret; 2275 2276 if (!iwl_mvm_firmware_running(mvm)) 2277 return -EIO; 2278 2279 hcmd.id = WIDE_ID(DEBUG_GROUP, *ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR); 2280 2281 if (*ppos & 0x3 || count < 4) { 2282 op = DEBUG_MEM_OP_WRITE_BYTES; 2283 len = min(count, (size_t)(4 - (*ppos & 0x3))); 2284 data_size = len; 2285 } else { 2286 op = DEBUG_MEM_OP_WRITE; 2287 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 2288 data_size = len << 2; 2289 } 2290 2291 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 2292 cmd = kzalloc(cmd_size, GFP_KERNEL); 2293 if (!cmd) 2294 return -ENOMEM; 2295 2296 cmd->op = cpu_to_le32(op); 2297 cmd->len = cpu_to_le32(len); 2298 cmd->addr = cpu_to_le32(*ppos); 2299 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 2300 kfree(cmd); 2301 return -EFAULT; 2302 } 2303 2304 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 2305 hcmd.data[0] = (void *)cmd; 2306 hcmd.len[0] = cmd_size; 2307 2308 mutex_lock(&mvm->mutex); 2309 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2310 mutex_unlock(&mvm->mutex); 2311 2312 kfree(cmd); 2313 2314 if (ret < 0) 2315 return ret; 2316 2317 if (iwl_rx_packet_payload_len(hcmd.resp_pkt) < sizeof(*rsp)) { 2318 ret = -EIO; 2319 goto out; 2320 } 2321 2322 rsp = (void *)hcmd.resp_pkt->data; 2323 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 2324 ret = -ENXIO; 2325 goto out; 2326 } 2327 2328 ret = data_size; 2329 *ppos += ret; 2330 2331out: 2332 iwl_free_resp(&hcmd); 2333 return ret; 2334} 2335 2336static const struct file_operations iwl_dbgfs_mem_ops = { 2337 .read = iwl_dbgfs_mem_read, 2338 .write = iwl_dbgfs_mem_write, 2339 .open = simple_open, 2340 .llseek = default_llseek, 2341}; 2342 2343void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw, 2344 struct ieee80211_vif *vif, 2345 struct ieee80211_link_sta *link_sta, 2346 struct dentry *dir) 2347{ 2348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2349 2350 if (iwl_mvm_has_tlc_offload(mvm)) { 2351 MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400); 2352 } 2353 2354 MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600); 2355} 2356 2357void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm) 2358{ 2359 struct dentry *bcast_dir __maybe_unused; 2360 2361 spin_lock_init(&mvm->drv_stats_lock); 2362 2363 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 2364 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 2365 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 2366 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 2367 MVM_DEBUGFS_ADD_FILE(nic_temp, mvm->debugfs_dir, 0400); 2368 MVM_DEBUGFS_ADD_FILE(ctdp_budget, mvm->debugfs_dir, 0400); 2369 MVM_DEBUGFS_ADD_FILE(stop_ctdp, mvm->debugfs_dir, 0200); 2370 MVM_DEBUGFS_ADD_FILE(start_ctdp, mvm->debugfs_dir, 0200); 2371 MVM_DEBUGFS_ADD_FILE(force_ctkill, mvm->debugfs_dir, 0200); 2372 MVM_DEBUGFS_ADD_FILE(stations, mvm->debugfs_dir, 0400); 2373 MVM_DEBUGFS_ADD_FILE(bt_notif, mvm->debugfs_dir, 0400); 2374 MVM_DEBUGFS_ADD_FILE(bt_cmd, mvm->debugfs_dir, 0400); 2375 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 2376 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 2377 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 2378 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 2379 MVM_DEBUGFS_ADD_FILE(fw_system_stats, mvm->debugfs_dir, 0400); 2380 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 2381 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 2382 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 2383 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 2384 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 2385 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 2386 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 2387 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 2388 MVM_DEBUGFS_ADD_FILE(fw_dbg_clear, mvm->debugfs_dir, 0200); 2389 MVM_DEBUGFS_ADD_FILE(dbg_time_point, mvm->debugfs_dir, 0200); 2390 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 2391 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 2392 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 2393 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); 2394 MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); 2395 MVM_DEBUGFS_ADD_FILE(rfi_freq_table, mvm->debugfs_dir, 0600); 2396 2397 if (mvm->fw->phy_integration_ver) 2398 MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400); 2399 MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400); 2400#ifdef CONFIG_ACPI 2401 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400); 2402 MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400); 2403#endif 2404 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); 2405 2406 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2)) 2407 MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200); 2408 2409 debugfs_create_bool("enable_scan_iteration_notif", 0600, 2410 mvm->debugfs_dir, &mvm->scan_iter_notif_enabled); 2411 debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir, 2412 &mvm->drop_bcn_ap_mode); 2413 2414 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2415 2416#ifdef CONFIG_PM_SLEEP 2417 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2418 debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir, 2419 &mvm->d3_wake_sysassert); 2420 debugfs_create_u32("last_netdetect_scans", 0400, mvm->debugfs_dir, 2421 &mvm->last_netdetect_scans); 2422#endif 2423 2424 debugfs_create_u8("ps_disabled", 0400, mvm->debugfs_dir, 2425 &mvm->ps_disabled); 2426 debugfs_create_blob("nvm_hw", 0400, mvm->debugfs_dir, 2427 &mvm->nvm_hw_blob); 2428 debugfs_create_blob("nvm_sw", 0400, mvm->debugfs_dir, 2429 &mvm->nvm_sw_blob); 2430 debugfs_create_blob("nvm_calib", 0400, mvm->debugfs_dir, 2431 &mvm->nvm_calib_blob); 2432 debugfs_create_blob("nvm_prod", 0400, mvm->debugfs_dir, 2433 &mvm->nvm_prod_blob); 2434 debugfs_create_blob("nvm_phy_sku", 0400, mvm->debugfs_dir, 2435 &mvm->nvm_phy_sku_blob); 2436 debugfs_create_blob("nvm_reg", S_IRUSR, 2437 mvm->debugfs_dir, &mvm->nvm_reg_blob); 2438 2439 debugfs_create_file("mem", 0600, mvm->debugfs_dir, mvm, 2440 &iwl_dbgfs_mem_ops); 2441 2442 /* 2443 * Create a symlink with mac80211. It will be removed when mac80211 2444 * exists (before the opmode exists which removes the target.) 2445 */ 2446 if (!IS_ERR(mvm->debugfs_dir)) { 2447 char buf[100]; 2448 2449 snprintf(buf, 100, "../../%pd2", mvm->debugfs_dir->d_parent); 2450 debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, 2451 buf); 2452 } 2453} 2454