1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * Copyright(c) 2018 Intel Corporation 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of version 2 of the GNU General Public License as 15 * published by the Free Software Foundation. 16 * 17 * This program is distributed in the hope that it will be useful, but 18 * WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 * General Public License for more details. 21 * 22 * The full GNU General Public License is included in this distribution 23 * in the file called COPYING. 24 * 25 * Contact Information: 26 * Intel Linux Wireless <linuxwifi@intel.com> 27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28 * 29 * BSD LICENSE 30 * 31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34 * Copyright(c) 2018 Intel Corporation 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 41 * * Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * * Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in 45 * the documentation and/or other materials provided with the 46 * distribution. 47 * * Neither the name Intel Corporation nor the names of its 48 * contributors may be used to endorse or promote products derived 49 * from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 *****************************************************************************/ 64 #include <linux/vmalloc.h> 65 #include <linux/ieee80211.h> 66 #include <linux/netdevice.h> 67 68 #include "mvm.h" 69 #include "sta.h" 70 #include "iwl-io.h" 71 #include "debugfs.h" 72 #include "fw/error-dump.h" 73 74 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 75 char __user *user_buf, 76 size_t count, loff_t *ppos) 77 { 78 struct iwl_mvm *mvm = file->private_data; 79 char buf[16]; 80 int pos, budget; 81 82 if (!iwl_mvm_is_ctdp_supported(mvm)) 83 return -EOPNOTSUPP; 84 85 if (!iwl_mvm_firmware_running(mvm) || 86 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 87 return -EIO; 88 89 mutex_lock(&mvm->mutex); 90 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 91 mutex_unlock(&mvm->mutex); 92 93 if (budget < 0) 94 return budget; 95 96 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 97 98 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 99 } 100 101 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 102 size_t count, loff_t *ppos) 103 { 104 int ret; 105 106 if (!iwl_mvm_is_ctdp_supported(mvm)) 107 return -EOPNOTSUPP; 108 109 if (!iwl_mvm_firmware_running(mvm) || 110 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 111 return -EIO; 112 113 mutex_lock(&mvm->mutex); 114 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 115 mutex_unlock(&mvm->mutex); 116 117 return ret ?: count; 118 } 119 120 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 121 size_t count, loff_t *ppos) 122 { 123 if (!iwl_mvm_firmware_running(mvm) || 124 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 125 return -EIO; 126 127 iwl_mvm_enter_ctkill(mvm); 128 129 return count; 130 } 131 132 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 133 size_t count, loff_t *ppos) 134 { 135 int ret; 136 u32 flush_arg; 137 138 if (!iwl_mvm_firmware_running(mvm) || 139 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 140 return -EIO; 141 142 if (kstrtou32(buf, 0, &flush_arg)) 143 return -EINVAL; 144 145 if (iwl_mvm_has_new_tx_api(mvm)) { 146 IWL_DEBUG_TX_QUEUES(mvm, 147 "FLUSHING all tids queues on sta_id = %d\n", 148 flush_arg); 149 mutex_lock(&mvm->mutex); 150 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFF, 0) ? : count; 151 mutex_unlock(&mvm->mutex); 152 return ret; 153 } 154 155 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 156 flush_arg); 157 158 mutex_lock(&mvm->mutex); 159 ret = iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count; 160 mutex_unlock(&mvm->mutex); 161 162 return ret; 163 } 164 165 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 166 size_t count, loff_t *ppos) 167 { 168 struct iwl_mvm_sta *mvmsta; 169 int sta_id, drain, ret; 170 171 if (!iwl_mvm_firmware_running(mvm) || 172 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 173 return -EIO; 174 175 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 176 return -EINVAL; 177 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) 178 return -EINVAL; 179 if (drain < 0 || drain > 1) 180 return -EINVAL; 181 182 mutex_lock(&mvm->mutex); 183 184 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 185 186 if (!mvmsta) 187 ret = -ENOENT; 188 else 189 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 190 191 mutex_unlock(&mvm->mutex); 192 193 return ret; 194 } 195 196 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 197 size_t count, loff_t *ppos) 198 { 199 struct iwl_mvm *mvm = file->private_data; 200 const struct fw_img *img; 201 unsigned int ofs, len; 202 size_t ret; 203 u8 *ptr; 204 205 if (!iwl_mvm_firmware_running(mvm)) 206 return -EINVAL; 207 208 /* default is to dump the entire data segment */ 209 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 210 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 211 len = img->sec[IWL_UCODE_SECTION_DATA].len; 212 213 if (mvm->dbgfs_sram_len) { 214 ofs = mvm->dbgfs_sram_offset; 215 len = mvm->dbgfs_sram_len; 216 } 217 218 ptr = kzalloc(len, GFP_KERNEL); 219 if (!ptr) 220 return -ENOMEM; 221 222 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 223 224 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 225 226 kfree(ptr); 227 228 return ret; 229 } 230 231 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 232 size_t count, loff_t *ppos) 233 { 234 const struct fw_img *img; 235 u32 offset, len; 236 u32 img_offset, img_len; 237 238 if (!iwl_mvm_firmware_running(mvm)) 239 return -EINVAL; 240 241 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 242 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 243 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 244 245 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 246 if ((offset & 0x3) || (len & 0x3)) 247 return -EINVAL; 248 249 if (offset + len > img_offset + img_len) 250 return -EINVAL; 251 252 mvm->dbgfs_sram_offset = offset; 253 mvm->dbgfs_sram_len = len; 254 } else { 255 mvm->dbgfs_sram_offset = 0; 256 mvm->dbgfs_sram_len = 0; 257 } 258 259 return count; 260 } 261 262 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 263 char __user *user_buf, 264 size_t count, loff_t *ppos) 265 { 266 struct iwl_mvm *mvm = file->private_data; 267 char buf[16]; 268 int pos; 269 270 if (!mvm->temperature_test) 271 pos = scnprintf(buf , sizeof(buf), "disabled\n"); 272 else 273 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature); 274 275 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 276 } 277 278 /* 279 * Set NIC Temperature 280 * Cause the driver to ignore the actual NIC temperature reported by the FW 281 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 282 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 283 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 284 */ 285 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 286 char *buf, size_t count, 287 loff_t *ppos) 288 { 289 int temperature; 290 291 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 292 return -EIO; 293 294 if (kstrtoint(buf, 10, &temperature)) 295 return -EINVAL; 296 /* not a legal temperature */ 297 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 298 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 299 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 300 return -EINVAL; 301 302 mutex_lock(&mvm->mutex); 303 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 304 if (!mvm->temperature_test) 305 goto out; 306 307 mvm->temperature_test = false; 308 /* Since we can't read the temp while awake, just set 309 * it to zero until we get the next RX stats from the 310 * firmware. 311 */ 312 mvm->temperature = 0; 313 } else { 314 mvm->temperature_test = true; 315 mvm->temperature = temperature; 316 } 317 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 318 mvm->temperature_test ? "En" : "Dis" , 319 mvm->temperature); 320 /* handle the temperature change */ 321 iwl_mvm_tt_handler(mvm); 322 323 out: 324 mutex_unlock(&mvm->mutex); 325 326 return count; 327 } 328 329 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 330 char __user *user_buf, 331 size_t count, loff_t *ppos) 332 { 333 struct iwl_mvm *mvm = file->private_data; 334 char buf[16]; 335 int pos, ret; 336 s32 temp; 337 338 if (!iwl_mvm_firmware_running(mvm)) 339 return -EIO; 340 341 mutex_lock(&mvm->mutex); 342 ret = iwl_mvm_get_temp(mvm, &temp); 343 mutex_unlock(&mvm->mutex); 344 345 if (ret) 346 return -EIO; 347 348 pos = scnprintf(buf , sizeof(buf), "%d\n", temp); 349 350 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 351 } 352 353 #ifdef CONFIG_ACPI 354 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 355 char __user *user_buf, 356 size_t count, loff_t *ppos) 357 { 358 struct iwl_mvm *mvm = file->private_data; 359 char buf[256]; 360 int pos = 0; 361 int bufsz = sizeof(buf); 362 int tbl_idx; 363 u8 *value; 364 365 if (!iwl_mvm_firmware_running(mvm)) 366 return -EIO; 367 368 mutex_lock(&mvm->mutex); 369 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 370 if (tbl_idx < 0) { 371 mutex_unlock(&mvm->mutex); 372 return tbl_idx; 373 } 374 375 if (!tbl_idx) { 376 pos = scnprintf(buf, bufsz, 377 "SAR geographic profile disabled\n"); 378 } else { 379 value = &mvm->geo_profiles[tbl_idx - 1].values[0]; 380 381 pos += scnprintf(buf + pos, bufsz - pos, 382 "Use geographic profile %d\n", tbl_idx); 383 pos += scnprintf(buf + pos, bufsz - pos, 384 "2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 385 value[1], value[2], value[0]); 386 pos += scnprintf(buf + pos, bufsz - pos, 387 "5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 388 value[4], value[5], value[3]); 389 } 390 mutex_unlock(&mvm->mutex); 391 392 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 393 } 394 #endif 395 396 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 397 size_t count, loff_t *ppos) 398 { 399 struct iwl_mvm *mvm = file->private_data; 400 struct ieee80211_sta *sta; 401 char buf[400]; 402 int i, pos = 0, bufsz = sizeof(buf); 403 404 mutex_lock(&mvm->mutex); 405 406 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 407 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 408 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 409 lockdep_is_held(&mvm->mutex)); 410 if (!sta) 411 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 412 else if (IS_ERR(sta)) 413 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 414 PTR_ERR(sta)); 415 else 416 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 417 sta->addr); 418 } 419 420 mutex_unlock(&mvm->mutex); 421 422 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 423 } 424 425 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf, 426 size_t count, loff_t *ppos) 427 { 428 struct ieee80211_sta *sta = file->private_data; 429 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 430 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 431 struct iwl_mvm *mvm = lq_sta->pers.drv; 432 static const size_t bufsz = 2048; 433 char *buff; 434 int desc = 0; 435 ssize_t ret; 436 437 buff = kmalloc(bufsz, GFP_KERNEL); 438 if (!buff) 439 return -ENOMEM; 440 441 mutex_lock(&mvm->mutex); 442 443 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 444 lq_sta->pers.sta_id); 445 desc += scnprintf(buff + desc, bufsz - desc, 446 "fixed rate 0x%X\n", 447 lq_sta->pers.dbg_fixed_rate); 448 desc += scnprintf(buff + desc, bufsz - desc, 449 "A-MPDU size limit %d\n", 450 lq_sta->pers.dbg_agg_frame_count_lim); 451 desc += scnprintf(buff + desc, bufsz - desc, 452 "valid_tx_ant %s%s%s\n", 453 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 454 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "", 455 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : ""); 456 desc += scnprintf(buff + desc, bufsz - desc, 457 "last tx rate=0x%X ", 458 lq_sta->last_rate_n_flags); 459 460 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 461 lq_sta->last_rate_n_flags); 462 mutex_unlock(&mvm->mutex); 463 464 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 465 kfree(buff); 466 return ret; 467 } 468 469 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 470 char __user *user_buf, 471 size_t count, loff_t *ppos) 472 { 473 struct iwl_mvm *mvm = file->private_data; 474 char buf[64]; 475 int bufsz = sizeof(buf); 476 int pos = 0; 477 478 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 479 mvm->disable_power_off); 480 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 481 mvm->disable_power_off_d3); 482 483 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 484 } 485 486 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 487 size_t count, loff_t *ppos) 488 { 489 int ret, val; 490 491 if (!iwl_mvm_firmware_running(mvm)) 492 return -EIO; 493 494 if (!strncmp("disable_power_off_d0=", buf, 21)) { 495 if (sscanf(buf + 21, "%d", &val) != 1) 496 return -EINVAL; 497 mvm->disable_power_off = val; 498 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 499 if (sscanf(buf + 21, "%d", &val) != 1) 500 return -EINVAL; 501 mvm->disable_power_off_d3 = val; 502 } else { 503 return -EINVAL; 504 } 505 506 mutex_lock(&mvm->mutex); 507 ret = iwl_mvm_power_update_device(mvm); 508 mutex_unlock(&mvm->mutex); 509 510 return ret ?: count; 511 } 512 513 static 514 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 515 int pos, int bufsz) 516 { 517 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 518 519 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 520 BT_MBOX_PRINT(0, LE_PROF1, false); 521 BT_MBOX_PRINT(0, LE_PROF2, false); 522 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 523 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 524 BT_MBOX_PRINT(0, INBAND_S, false); 525 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 526 BT_MBOX_PRINT(0, LE_SCAN, false); 527 BT_MBOX_PRINT(0, LE_ADV, false); 528 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 529 BT_MBOX_PRINT(0, OPEN_CON_1, true); 530 531 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 532 533 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 534 BT_MBOX_PRINT(1, IP_SR, false); 535 BT_MBOX_PRINT(1, LE_MSTR, false); 536 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 537 BT_MBOX_PRINT(1, MSG_TYPE, false); 538 BT_MBOX_PRINT(1, SSN, true); 539 540 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 541 542 BT_MBOX_PRINT(2, SNIFF_ACT, false); 543 BT_MBOX_PRINT(2, PAG, false); 544 BT_MBOX_PRINT(2, INQUIRY, false); 545 BT_MBOX_PRINT(2, CONN, false); 546 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 547 BT_MBOX_PRINT(2, DISC, false); 548 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 549 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 550 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 551 BT_MBOX_PRINT(2, SCO_DURATION, true); 552 553 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 554 555 BT_MBOX_PRINT(3, SCO_STATE, false); 556 BT_MBOX_PRINT(3, SNIFF_STATE, false); 557 BT_MBOX_PRINT(3, A2DP_STATE, false); 558 BT_MBOX_PRINT(3, A2DP_SRC, false); 559 BT_MBOX_PRINT(3, ACL_STATE, false); 560 BT_MBOX_PRINT(3, MSTR_STATE, false); 561 BT_MBOX_PRINT(3, OBX_STATE, false); 562 BT_MBOX_PRINT(3, OPEN_CON_2, false); 563 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 564 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 565 BT_MBOX_PRINT(3, INBAND_P, false); 566 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 567 BT_MBOX_PRINT(3, SSN_2, false); 568 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 569 570 return pos; 571 } 572 573 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 574 size_t count, loff_t *ppos) 575 { 576 struct iwl_mvm *mvm = file->private_data; 577 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 578 char *buf; 579 int ret, pos = 0, bufsz = sizeof(char) * 1024; 580 581 buf = kmalloc(bufsz, GFP_KERNEL); 582 if (!buf) 583 return -ENOMEM; 584 585 mutex_lock(&mvm->mutex); 586 587 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 588 589 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 590 notif->bt_ci_compliance); 591 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 592 le32_to_cpu(notif->primary_ch_lut)); 593 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 594 le32_to_cpu(notif->secondary_ch_lut)); 595 pos += scnprintf(buf + pos, 596 bufsz - pos, "bt_activity_grading = %d\n", 597 le32_to_cpu(notif->bt_activity_grading)); 598 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 599 notif->rrc_status & 0xF); 600 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 601 notif->ttc_status & 0xF); 602 603 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 604 IWL_MVM_BT_COEX_SYNC2SCO); 605 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 606 IWL_MVM_BT_COEX_MPLUT); 607 608 mutex_unlock(&mvm->mutex); 609 610 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 611 kfree(buf); 612 613 return ret; 614 } 615 #undef BT_MBOX_PRINT 616 617 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 618 size_t count, loff_t *ppos) 619 { 620 struct iwl_mvm *mvm = file->private_data; 621 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 622 char buf[256]; 623 int bufsz = sizeof(buf); 624 int pos = 0; 625 626 mutex_lock(&mvm->mutex); 627 628 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 629 pos += scnprintf(buf + pos, bufsz - pos, 630 "\tPrimary Channel Bitmap 0x%016llx\n", 631 le64_to_cpu(cmd->bt_primary_ci)); 632 pos += scnprintf(buf + pos, bufsz - pos, 633 "\tSecondary Channel Bitmap 0x%016llx\n", 634 le64_to_cpu(cmd->bt_secondary_ci)); 635 636 mutex_unlock(&mvm->mutex); 637 638 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 639 } 640 641 static ssize_t 642 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 643 size_t count, loff_t *ppos) 644 { 645 u32 bt_tx_prio; 646 647 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 648 return -EINVAL; 649 if (bt_tx_prio > 4) 650 return -EINVAL; 651 652 mvm->bt_tx_prio = bt_tx_prio; 653 654 return count; 655 } 656 657 static ssize_t 658 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 659 size_t count, loff_t *ppos) 660 { 661 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 662 [BT_FORCE_ANT_DIS] = "dis", 663 [BT_FORCE_ANT_AUTO] = "auto", 664 [BT_FORCE_ANT_BT] = "bt", 665 [BT_FORCE_ANT_WIFI] = "wifi", 666 }; 667 int ret, bt_force_ant_mode; 668 669 ret = match_string(modes_str, ARRAY_SIZE(modes_str), buf); 670 if (ret < 0) 671 return ret; 672 673 bt_force_ant_mode = ret; 674 ret = 0; 675 mutex_lock(&mvm->mutex); 676 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 677 goto out; 678 679 mvm->bt_force_ant_mode = bt_force_ant_mode; 680 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 681 modes_str[mvm->bt_force_ant_mode]); 682 683 if (iwl_mvm_firmware_running(mvm)) 684 ret = iwl_mvm_send_bt_init_conf(mvm); 685 else 686 ret = 0; 687 688 out: 689 mutex_unlock(&mvm->mutex); 690 return ret ?: count; 691 } 692 693 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 694 size_t count, loff_t *ppos) 695 { 696 struct iwl_mvm *mvm = file->private_data; 697 char *buff, *pos, *endpos; 698 static const size_t bufsz = 1024; 699 int ret; 700 701 buff = kmalloc(bufsz, GFP_KERNEL); 702 if (!buff) 703 return -ENOMEM; 704 705 pos = buff; 706 endpos = pos + bufsz; 707 708 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 709 mvm->trans->cfg->fw_name_pre); 710 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 711 mvm->fwrt.fw->human_readable); 712 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 713 mvm->fwrt.trans->cfg->name); 714 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 715 mvm->fwrt.dev->bus->name); 716 717 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 718 kfree(buff); 719 720 return ret; 721 } 722 723 #define PRINT_STATS_LE32(_struct, _memb) \ 724 pos += scnprintf(buf + pos, bufsz - pos, \ 725 fmt_table, #_memb, \ 726 le32_to_cpu(_struct->_memb)) 727 728 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 729 char __user *user_buf, size_t count, 730 loff_t *ppos) 731 { 732 struct iwl_mvm *mvm = file->private_data; 733 static const char *fmt_table = "\t%-30s %10u\n"; 734 static const char *fmt_header = "%-32s\n"; 735 int pos = 0; 736 char *buf; 737 int ret; 738 size_t bufsz; 739 740 if (iwl_mvm_has_new_rx_stats_api(mvm)) 741 bufsz = ((sizeof(struct mvm_statistics_rx) / 742 sizeof(__le32)) * 43) + (4 * 33) + 1; 743 else 744 /* 43 = size of each data line; 33 = size of each header */ 745 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 746 sizeof(__le32)) * 43) + (4 * 33) + 1; 747 748 buf = kzalloc(bufsz, GFP_KERNEL); 749 if (!buf) 750 return -ENOMEM; 751 752 mutex_lock(&mvm->mutex); 753 754 if (iwl_mvm_firmware_running(mvm)) 755 iwl_mvm_request_statistics(mvm, false); 756 757 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 758 "Statistics_Rx - OFDM"); 759 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 760 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 761 762 PRINT_STATS_LE32(ofdm, ina_cnt); 763 PRINT_STATS_LE32(ofdm, fina_cnt); 764 PRINT_STATS_LE32(ofdm, plcp_err); 765 PRINT_STATS_LE32(ofdm, crc32_err); 766 PRINT_STATS_LE32(ofdm, overrun_err); 767 PRINT_STATS_LE32(ofdm, early_overrun_err); 768 PRINT_STATS_LE32(ofdm, crc32_good); 769 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 770 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 771 PRINT_STATS_LE32(ofdm, sfd_timeout); 772 PRINT_STATS_LE32(ofdm, fina_timeout); 773 PRINT_STATS_LE32(ofdm, unresponded_rts); 774 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 775 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 776 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 777 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 778 PRINT_STATS_LE32(ofdm, dsp_self_kill); 779 PRINT_STATS_LE32(ofdm, mh_format_err); 780 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 781 PRINT_STATS_LE32(ofdm, reserved); 782 } else { 783 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 784 785 PRINT_STATS_LE32(ofdm, unresponded_rts); 786 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 787 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 788 PRINT_STATS_LE32(ofdm, dsp_self_kill); 789 PRINT_STATS_LE32(ofdm, reserved); 790 } 791 792 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 793 "Statistics_Rx - CCK"); 794 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 795 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 796 797 PRINT_STATS_LE32(cck, ina_cnt); 798 PRINT_STATS_LE32(cck, fina_cnt); 799 PRINT_STATS_LE32(cck, plcp_err); 800 PRINT_STATS_LE32(cck, crc32_err); 801 PRINT_STATS_LE32(cck, overrun_err); 802 PRINT_STATS_LE32(cck, early_overrun_err); 803 PRINT_STATS_LE32(cck, crc32_good); 804 PRINT_STATS_LE32(cck, false_alarm_cnt); 805 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 806 PRINT_STATS_LE32(cck, sfd_timeout); 807 PRINT_STATS_LE32(cck, fina_timeout); 808 PRINT_STATS_LE32(cck, unresponded_rts); 809 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 810 PRINT_STATS_LE32(cck, sent_ack_cnt); 811 PRINT_STATS_LE32(cck, sent_cts_cnt); 812 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 813 PRINT_STATS_LE32(cck, dsp_self_kill); 814 PRINT_STATS_LE32(cck, mh_format_err); 815 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 816 PRINT_STATS_LE32(cck, reserved); 817 } else { 818 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 819 820 PRINT_STATS_LE32(cck, unresponded_rts); 821 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 822 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 823 PRINT_STATS_LE32(cck, dsp_self_kill); 824 PRINT_STATS_LE32(cck, reserved); 825 } 826 827 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 828 "Statistics_Rx - GENERAL"); 829 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 830 struct mvm_statistics_rx_non_phy_v3 *general = 831 &mvm->rx_stats_v3.general; 832 833 PRINT_STATS_LE32(general, bogus_cts); 834 PRINT_STATS_LE32(general, bogus_ack); 835 PRINT_STATS_LE32(general, non_bssid_frames); 836 PRINT_STATS_LE32(general, filtered_frames); 837 PRINT_STATS_LE32(general, non_channel_beacons); 838 PRINT_STATS_LE32(general, channel_beacons); 839 PRINT_STATS_LE32(general, num_missed_bcon); 840 PRINT_STATS_LE32(general, adc_rx_saturation_time); 841 PRINT_STATS_LE32(general, ina_detection_search_time); 842 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 843 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 844 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 845 PRINT_STATS_LE32(general, interference_data_flag); 846 PRINT_STATS_LE32(general, channel_load); 847 PRINT_STATS_LE32(general, dsp_false_alarms); 848 PRINT_STATS_LE32(general, beacon_rssi_a); 849 PRINT_STATS_LE32(general, beacon_rssi_b); 850 PRINT_STATS_LE32(general, beacon_rssi_c); 851 PRINT_STATS_LE32(general, beacon_energy_a); 852 PRINT_STATS_LE32(general, beacon_energy_b); 853 PRINT_STATS_LE32(general, beacon_energy_c); 854 PRINT_STATS_LE32(general, num_bt_kills); 855 PRINT_STATS_LE32(general, mac_id); 856 PRINT_STATS_LE32(general, directed_data_mpdu); 857 } else { 858 struct mvm_statistics_rx_non_phy *general = 859 &mvm->rx_stats.general; 860 861 PRINT_STATS_LE32(general, bogus_cts); 862 PRINT_STATS_LE32(general, bogus_ack); 863 PRINT_STATS_LE32(general, non_channel_beacons); 864 PRINT_STATS_LE32(general, channel_beacons); 865 PRINT_STATS_LE32(general, num_missed_bcon); 866 PRINT_STATS_LE32(general, adc_rx_saturation_time); 867 PRINT_STATS_LE32(general, ina_detection_search_time); 868 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 869 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 870 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 871 PRINT_STATS_LE32(general, interference_data_flag); 872 PRINT_STATS_LE32(general, channel_load); 873 PRINT_STATS_LE32(general, beacon_rssi_a); 874 PRINT_STATS_LE32(general, beacon_rssi_b); 875 PRINT_STATS_LE32(general, beacon_rssi_c); 876 PRINT_STATS_LE32(general, beacon_energy_a); 877 PRINT_STATS_LE32(general, beacon_energy_b); 878 PRINT_STATS_LE32(general, beacon_energy_c); 879 PRINT_STATS_LE32(general, num_bt_kills); 880 PRINT_STATS_LE32(general, mac_id); 881 } 882 883 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 884 "Statistics_Rx - HT"); 885 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 886 struct mvm_statistics_rx_ht_phy_v1 *ht = 887 &mvm->rx_stats_v3.ofdm_ht; 888 889 PRINT_STATS_LE32(ht, plcp_err); 890 PRINT_STATS_LE32(ht, overrun_err); 891 PRINT_STATS_LE32(ht, early_overrun_err); 892 PRINT_STATS_LE32(ht, crc32_good); 893 PRINT_STATS_LE32(ht, crc32_err); 894 PRINT_STATS_LE32(ht, mh_format_err); 895 PRINT_STATS_LE32(ht, agg_crc32_good); 896 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 897 PRINT_STATS_LE32(ht, agg_cnt); 898 PRINT_STATS_LE32(ht, unsupport_mcs); 899 } else { 900 struct mvm_statistics_rx_ht_phy *ht = 901 &mvm->rx_stats.ofdm_ht; 902 903 PRINT_STATS_LE32(ht, mh_format_err); 904 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 905 PRINT_STATS_LE32(ht, agg_cnt); 906 PRINT_STATS_LE32(ht, unsupport_mcs); 907 } 908 909 mutex_unlock(&mvm->mutex); 910 911 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 912 kfree(buf); 913 914 return ret; 915 } 916 #undef PRINT_STAT_LE32 917 918 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 919 char __user *user_buf, size_t count, 920 loff_t *ppos, 921 struct iwl_mvm_frame_stats *stats) 922 { 923 char *buff, *pos, *endpos; 924 int idx, i; 925 int ret; 926 static const size_t bufsz = 1024; 927 928 buff = kmalloc(bufsz, GFP_KERNEL); 929 if (!buff) 930 return -ENOMEM; 931 932 spin_lock_bh(&mvm->drv_stats_lock); 933 934 pos = buff; 935 endpos = pos + bufsz; 936 937 pos += scnprintf(pos, endpos - pos, 938 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 939 stats->legacy_frames, 940 stats->ht_frames, 941 stats->vht_frames); 942 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 943 stats->bw_20_frames, 944 stats->bw_40_frames, 945 stats->bw_80_frames); 946 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 947 stats->ngi_frames, 948 stats->sgi_frames); 949 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 950 stats->siso_frames, 951 stats->mimo2_frames); 952 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 953 stats->fail_frames, 954 stats->success_frames); 955 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 956 stats->agg_frames); 957 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 958 stats->ampdu_count); 959 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 960 stats->ampdu_count > 0 ? 961 (stats->agg_frames / stats->ampdu_count) : 0); 962 963 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 964 965 idx = stats->last_frame_idx - 1; 966 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 967 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 968 if (stats->last_rates[idx] == 0) 969 continue; 970 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 971 (int)(ARRAY_SIZE(stats->last_rates) - i)); 972 pos += rs_pretty_print_rate(pos, endpos - pos, 973 stats->last_rates[idx]); 974 } 975 spin_unlock_bh(&mvm->drv_stats_lock); 976 977 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 978 kfree(buff); 979 980 return ret; 981 } 982 983 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 984 char __user *user_buf, size_t count, 985 loff_t *ppos) 986 { 987 struct iwl_mvm *mvm = file->private_data; 988 989 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 990 &mvm->drv_rx_stats); 991 } 992 993 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 994 size_t count, loff_t *ppos) 995 { 996 int __maybe_unused ret; 997 998 if (!iwl_mvm_firmware_running(mvm)) 999 return -EIO; 1000 1001 mutex_lock(&mvm->mutex); 1002 1003 /* allow one more restart that we're provoking here */ 1004 if (mvm->fw_restart >= 0) 1005 mvm->fw_restart++; 1006 1007 /* take the return value to make compiler happy - it will fail anyway */ 1008 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 1009 1010 mutex_unlock(&mvm->mutex); 1011 1012 return count; 1013 } 1014 1015 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1016 size_t count, loff_t *ppos) 1017 { 1018 int ret; 1019 1020 if (!iwl_mvm_firmware_running(mvm)) 1021 return -EIO; 1022 1023 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 1024 if (ret) 1025 return ret; 1026 1027 iwl_force_nmi(mvm->trans); 1028 1029 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 1030 1031 return count; 1032 } 1033 1034 static ssize_t 1035 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1036 char __user *user_buf, 1037 size_t count, loff_t *ppos) 1038 { 1039 struct iwl_mvm *mvm = file->private_data; 1040 int pos = 0; 1041 char buf[32]; 1042 const size_t bufsz = sizeof(buf); 1043 1044 /* print which antennas were set for the scan command by the user */ 1045 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1046 if (mvm->scan_rx_ant & ANT_A) 1047 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1048 if (mvm->scan_rx_ant & ANT_B) 1049 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1050 if (mvm->scan_rx_ant & ANT_C) 1051 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1052 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1053 1054 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1055 } 1056 1057 static ssize_t 1058 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1059 size_t count, loff_t *ppos) 1060 { 1061 u8 scan_rx_ant; 1062 1063 if (!iwl_mvm_firmware_running(mvm)) 1064 return -EIO; 1065 1066 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1067 return -EINVAL; 1068 if (scan_rx_ant > ANT_ABC) 1069 return -EINVAL; 1070 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1071 return -EINVAL; 1072 1073 if (mvm->scan_rx_ant != scan_rx_ant) { 1074 mvm->scan_rx_ant = scan_rx_ant; 1075 if (fw_has_capa(&mvm->fw->ucode_capa, 1076 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1077 iwl_mvm_config_scan(mvm); 1078 } 1079 1080 return count; 1081 } 1082 1083 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1084 char *buf, size_t count, 1085 loff_t *ppos) 1086 { 1087 struct iwl_rss_config_cmd cmd = { 1088 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1089 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1090 IWL_RSS_HASH_TYPE_IPV4_UDP | 1091 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1092 IWL_RSS_HASH_TYPE_IPV6_TCP | 1093 IWL_RSS_HASH_TYPE_IPV6_UDP | 1094 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1095 }; 1096 int ret, i, num_repeats, nbytes = count / 2; 1097 1098 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1099 if (ret) 1100 return ret; 1101 1102 /* 1103 * The input is the redirection table, partial or full. 1104 * Repeat the pattern if needed. 1105 * For example, input of 01020F will be repeated 42 times, 1106 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1107 * queues 3 - 14). 1108 */ 1109 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1110 for (i = 1; i < num_repeats; i++) 1111 memcpy(&cmd.indirection_table[i * nbytes], 1112 cmd.indirection_table, nbytes); 1113 /* handle cut in the middle pattern for the last places */ 1114 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1115 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1116 1117 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1118 1119 mutex_lock(&mvm->mutex); 1120 if (iwl_mvm_firmware_running(mvm)) 1121 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1122 sizeof(cmd), &cmd); 1123 else 1124 ret = 0; 1125 mutex_unlock(&mvm->mutex); 1126 1127 return ret ?: count; 1128 } 1129 1130 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1131 char *buf, size_t count, 1132 loff_t *ppos) 1133 { 1134 struct iwl_rx_cmd_buffer rxb = { 1135 ._rx_page_order = 0, 1136 .truesize = 0, /* not used */ 1137 ._offset = 0, 1138 }; 1139 struct iwl_rx_packet *pkt; 1140 struct iwl_rx_mpdu_desc *desc; 1141 int bin_len = count / 2; 1142 int ret = -EINVAL; 1143 size_t mpdu_cmd_hdr_size = 1144 (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) ? 1145 sizeof(struct iwl_rx_mpdu_desc) : 1146 IWL_RX_DESC_SIZE_V1; 1147 1148 if (!iwl_mvm_firmware_running(mvm)) 1149 return -EIO; 1150 1151 /* supporting only 9000 descriptor */ 1152 if (!mvm->trans->cfg->mq_rx_supported) 1153 return -ENOTSUPP; 1154 1155 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1156 if (!rxb._page) 1157 return -ENOMEM; 1158 pkt = rxb_addr(&rxb); 1159 1160 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1161 if (ret) 1162 goto out; 1163 1164 /* avoid invalid memory access */ 1165 if (bin_len < sizeof(*pkt) + mpdu_cmd_hdr_size) 1166 goto out; 1167 1168 /* check this is RX packet */ 1169 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1170 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1171 goto out; 1172 1173 /* check the length in metadata matches actual received length */ 1174 desc = (void *)pkt->data; 1175 if (le16_to_cpu(desc->mpdu_len) != 1176 (bin_len - mpdu_cmd_hdr_size - sizeof(*pkt))) 1177 goto out; 1178 1179 local_bh_disable(); 1180 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1181 local_bh_enable(); 1182 ret = 0; 1183 1184 out: 1185 iwl_free_rxb(&rxb); 1186 1187 return ret ?: count; 1188 } 1189 1190 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1191 char __user *user_buf, 1192 size_t count, loff_t *ppos) 1193 { 1194 struct iwl_mvm *mvm = file->private_data; 1195 int conf; 1196 char buf[8]; 1197 const size_t bufsz = sizeof(buf); 1198 int pos = 0; 1199 1200 mutex_lock(&mvm->mutex); 1201 conf = mvm->fwrt.dump.conf; 1202 mutex_unlock(&mvm->mutex); 1203 1204 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1205 1206 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1207 } 1208 1209 /* 1210 * Enable / Disable continuous recording. 1211 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1212 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1213 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1214 */ 1215 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1216 char *buf, size_t count, 1217 loff_t *ppos) 1218 { 1219 struct iwl_trans *trans = mvm->trans; 1220 const struct iwl_fw_dbg_dest_tlv_v1 *dest = trans->dbg_dest_tlv; 1221 struct iwl_continuous_record_cmd cont_rec = {}; 1222 int ret, rec_mode; 1223 1224 if (!iwl_mvm_firmware_running(mvm)) 1225 return -EIO; 1226 1227 if (!dest) 1228 return -EOPNOTSUPP; 1229 1230 if (dest->monitor_mode != SMEM_MODE || 1231 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1232 return -EOPNOTSUPP; 1233 1234 ret = kstrtoint(buf, 0, &rec_mode); 1235 if (ret) 1236 return ret; 1237 1238 cont_rec.record_mode.enable_recording = rec_mode ? 1239 cpu_to_le16(ENABLE_CONT_RECORDING) : 1240 cpu_to_le16(DISABLE_CONT_RECORDING); 1241 1242 mutex_lock(&mvm->mutex); 1243 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1244 sizeof(cont_rec), &cont_rec); 1245 mutex_unlock(&mvm->mutex); 1246 1247 return ret ?: count; 1248 } 1249 1250 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1251 char *buf, size_t count, 1252 loff_t *ppos) 1253 { 1254 unsigned int conf_id; 1255 int ret; 1256 1257 if (!iwl_mvm_firmware_running(mvm)) 1258 return -EIO; 1259 1260 ret = kstrtouint(buf, 0, &conf_id); 1261 if (ret) 1262 return ret; 1263 1264 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1265 return -EINVAL; 1266 1267 mutex_lock(&mvm->mutex); 1268 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1269 mutex_unlock(&mvm->mutex); 1270 1271 return ret ?: count; 1272 } 1273 1274 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1275 char *buf, size_t count, 1276 loff_t *ppos) 1277 { 1278 int ret; 1279 1280 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1281 if (ret) 1282 return ret; 1283 if (count == 0) 1284 return 0; 1285 1286 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1287 (count - 1)); 1288 1289 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1290 1291 return count; 1292 } 1293 1294 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1295 char *buf, size_t count, 1296 loff_t *ppos) 1297 { 1298 unsigned int max_amsdu_len; 1299 int ret; 1300 1301 ret = kstrtouint(buf, 0, &max_amsdu_len); 1302 if (ret) 1303 return ret; 1304 1305 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1306 return -EINVAL; 1307 mvm->max_amsdu_len = max_amsdu_len; 1308 1309 return count; 1310 } 1311 1312 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1313 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1314 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1315 char __user *user_buf, 1316 size_t count, loff_t *ppos) 1317 { 1318 struct iwl_mvm *mvm = file->private_data; 1319 struct iwl_bcast_filter_cmd cmd; 1320 const struct iwl_fw_bcast_filter *filter; 1321 char *buf; 1322 int bufsz = 1024; 1323 int i, j, pos = 0; 1324 ssize_t ret; 1325 1326 buf = kzalloc(bufsz, GFP_KERNEL); 1327 if (!buf) 1328 return -ENOMEM; 1329 1330 mutex_lock(&mvm->mutex); 1331 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1332 ADD_TEXT("None\n"); 1333 mutex_unlock(&mvm->mutex); 1334 goto out; 1335 } 1336 mutex_unlock(&mvm->mutex); 1337 1338 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1339 filter = &cmd.filters[i]; 1340 1341 ADD_TEXT("Filter [%d]:\n", i); 1342 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1343 ADD_TEXT("\tFrame Type: %s\n", 1344 filter->frame_type ? "IPv4" : "Generic"); 1345 1346 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1347 const struct iwl_fw_bcast_filter_attr *attr; 1348 1349 attr = &filter->attrs[j]; 1350 if (!attr->mask) 1351 break; 1352 1353 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1354 j, attr->offset, 1355 attr->offset_type ? "IP End" : 1356 "Payload Start", 1357 be32_to_cpu(attr->mask), 1358 be32_to_cpu(attr->val), 1359 le16_to_cpu(attr->reserved1)); 1360 } 1361 } 1362 out: 1363 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1364 kfree(buf); 1365 return ret; 1366 } 1367 1368 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1369 size_t count, loff_t *ppos) 1370 { 1371 int pos, next_pos; 1372 struct iwl_fw_bcast_filter filter = {}; 1373 struct iwl_bcast_filter_cmd cmd; 1374 u32 filter_id, attr_id, mask, value; 1375 int err = 0; 1376 1377 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1378 &filter.frame_type, &pos) != 3) 1379 return -EINVAL; 1380 1381 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1382 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1383 return -EINVAL; 1384 1385 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1386 attr_id++) { 1387 struct iwl_fw_bcast_filter_attr *attr = 1388 &filter.attrs[attr_id]; 1389 1390 if (pos >= count) 1391 break; 1392 1393 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1394 &attr->offset, &attr->offset_type, 1395 &mask, &value, &next_pos) != 4) 1396 return -EINVAL; 1397 1398 attr->mask = cpu_to_be32(mask); 1399 attr->val = cpu_to_be32(value); 1400 if (mask) 1401 filter.num_attrs++; 1402 1403 pos += next_pos; 1404 } 1405 1406 mutex_lock(&mvm->mutex); 1407 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1408 &filter, sizeof(filter)); 1409 1410 /* send updated bcast filtering configuration */ 1411 if (iwl_mvm_firmware_running(mvm) && 1412 mvm->dbgfs_bcast_filtering.override && 1413 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1414 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1415 sizeof(cmd), &cmd); 1416 mutex_unlock(&mvm->mutex); 1417 1418 return err ?: count; 1419 } 1420 1421 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1422 char __user *user_buf, 1423 size_t count, loff_t *ppos) 1424 { 1425 struct iwl_mvm *mvm = file->private_data; 1426 struct iwl_bcast_filter_cmd cmd; 1427 char *buf; 1428 int bufsz = 1024; 1429 int i, pos = 0; 1430 ssize_t ret; 1431 1432 buf = kzalloc(bufsz, GFP_KERNEL); 1433 if (!buf) 1434 return -ENOMEM; 1435 1436 mutex_lock(&mvm->mutex); 1437 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1438 ADD_TEXT("None\n"); 1439 mutex_unlock(&mvm->mutex); 1440 goto out; 1441 } 1442 mutex_unlock(&mvm->mutex); 1443 1444 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1445 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1446 1447 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1448 i, mac->default_discard, mac->attached_filters); 1449 } 1450 out: 1451 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1452 kfree(buf); 1453 return ret; 1454 } 1455 1456 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1457 char *buf, size_t count, 1458 loff_t *ppos) 1459 { 1460 struct iwl_bcast_filter_cmd cmd; 1461 struct iwl_fw_bcast_mac mac = {}; 1462 u32 mac_id, attached_filters; 1463 int err = 0; 1464 1465 if (!mvm->bcast_filters) 1466 return -ENOENT; 1467 1468 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1469 &attached_filters) != 3) 1470 return -EINVAL; 1471 1472 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1473 mac.default_discard > 1 || 1474 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1475 return -EINVAL; 1476 1477 mac.attached_filters = cpu_to_le16(attached_filters); 1478 1479 mutex_lock(&mvm->mutex); 1480 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1481 &mac, sizeof(mac)); 1482 1483 /* send updated bcast filtering configuration */ 1484 if (iwl_mvm_firmware_running(mvm) && 1485 mvm->dbgfs_bcast_filtering.override && 1486 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1487 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1488 sizeof(cmd), &cmd); 1489 mutex_unlock(&mvm->mutex); 1490 1491 return err ?: count; 1492 } 1493 #endif 1494 1495 #ifdef CONFIG_PM_SLEEP 1496 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1497 size_t count, loff_t *ppos) 1498 { 1499 int store; 1500 1501 if (sscanf(buf, "%d", &store) != 1) 1502 return -EINVAL; 1503 1504 mvm->store_d3_resume_sram = store; 1505 1506 return count; 1507 } 1508 1509 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1510 size_t count, loff_t *ppos) 1511 { 1512 struct iwl_mvm *mvm = file->private_data; 1513 const struct fw_img *img; 1514 int ofs, len, pos = 0; 1515 size_t bufsz, ret; 1516 char *buf; 1517 u8 *ptr = mvm->d3_resume_sram; 1518 1519 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1520 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1521 1522 bufsz = len * 4 + 256; 1523 buf = kzalloc(bufsz, GFP_KERNEL); 1524 if (!buf) 1525 return -ENOMEM; 1526 1527 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1528 mvm->store_d3_resume_sram ? "en" : "dis"); 1529 1530 if (ptr) { 1531 for (ofs = 0; ofs < len; ofs += 16) { 1532 pos += scnprintf(buf + pos, bufsz - pos, 1533 "0x%.4x %16ph\n", ofs, ptr + ofs); 1534 } 1535 } else { 1536 pos += scnprintf(buf + pos, bufsz - pos, 1537 "(no data captured)\n"); 1538 } 1539 1540 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1541 1542 kfree(buf); 1543 1544 return ret; 1545 } 1546 #endif 1547 1548 #define PRINT_MVM_REF(ref) do { \ 1549 if (mvm->refs[ref]) \ 1550 pos += scnprintf(buf + pos, bufsz - pos, \ 1551 "\t(0x%lx): %d %s\n", \ 1552 BIT(ref), mvm->refs[ref], #ref); \ 1553 } while (0) 1554 1555 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1556 char __user *user_buf, 1557 size_t count, loff_t *ppos) 1558 { 1559 struct iwl_mvm *mvm = file->private_data; 1560 int i, pos = 0; 1561 char buf[256]; 1562 const size_t bufsz = sizeof(buf); 1563 u32 refs = 0; 1564 1565 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1566 if (mvm->refs[i]) 1567 refs |= BIT(i); 1568 1569 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1570 refs); 1571 1572 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1573 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1574 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1575 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1576 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1577 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1578 PRINT_MVM_REF(IWL_MVM_REF_USER); 1579 PRINT_MVM_REF(IWL_MVM_REF_TX); 1580 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1581 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1582 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1583 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1584 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1585 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1586 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1587 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1588 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1589 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1590 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1591 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1592 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1593 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1594 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1595 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1596 PRINT_MVM_REF(IWL_MVM_REF_RX); 1597 1598 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1599 } 1600 1601 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1602 size_t count, loff_t *ppos) 1603 { 1604 unsigned long value; 1605 int ret; 1606 bool taken; 1607 1608 ret = kstrtoul(buf, 10, &value); 1609 if (ret < 0) 1610 return ret; 1611 1612 mutex_lock(&mvm->mutex); 1613 1614 taken = mvm->refs[IWL_MVM_REF_USER]; 1615 if (value == 1 && !taken) 1616 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1617 else if (value == 0 && taken) 1618 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1619 else 1620 ret = -EINVAL; 1621 1622 mutex_unlock(&mvm->mutex); 1623 1624 if (ret < 0) 1625 return ret; 1626 return count; 1627 } 1628 1629 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1630 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1631 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1632 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1633 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1634 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1635 &iwl_dbgfs_##name##_ops)) \ 1636 goto err; \ 1637 } while (0) 1638 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1639 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1640 1641 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1642 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1643 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1644 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1645 1646 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1647 if (!debugfs_create_file(alias, mode, parent, sta, \ 1648 &iwl_dbgfs_##name##_ops)) \ 1649 goto err; \ 1650 } while (0) 1651 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1652 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1653 1654 static ssize_t 1655 iwl_dbgfs_prph_reg_read(struct file *file, 1656 char __user *user_buf, 1657 size_t count, loff_t *ppos) 1658 { 1659 struct iwl_mvm *mvm = file->private_data; 1660 int pos = 0; 1661 char buf[32]; 1662 const size_t bufsz = sizeof(buf); 1663 int ret; 1664 1665 if (!mvm->dbgfs_prph_reg_addr) 1666 return -EINVAL; 1667 1668 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1669 if (ret) 1670 return ret; 1671 1672 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1673 mvm->dbgfs_prph_reg_addr, 1674 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1675 1676 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1677 1678 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1679 } 1680 1681 static ssize_t 1682 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1683 size_t count, loff_t *ppos) 1684 { 1685 u8 args; 1686 u32 value; 1687 int ret; 1688 1689 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1690 /* if we only want to set the reg address - nothing more to do */ 1691 if (args == 1) 1692 goto out; 1693 1694 /* otherwise, make sure we have both address and value */ 1695 if (args != 2) 1696 return -EINVAL; 1697 1698 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1699 if (ret) 1700 return ret; 1701 1702 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1703 1704 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1705 out: 1706 return count; 1707 } 1708 1709 static ssize_t 1710 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1711 size_t count, loff_t *ppos) 1712 { 1713 int ret; 1714 1715 if (!iwl_mvm_firmware_running(mvm)) 1716 return -EIO; 1717 1718 mutex_lock(&mvm->mutex); 1719 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1720 mutex_unlock(&mvm->mutex); 1721 1722 return ret ?: count; 1723 } 1724 1725 static ssize_t 1726 iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, 1727 size_t count, loff_t *ppos) 1728 { 1729 struct iwl_he_monitor_cmd he_mon_cmd = {}; 1730 u32 aid; 1731 int ret; 1732 1733 if (!iwl_mvm_firmware_running(mvm)) 1734 return -EIO; 1735 1736 ret = sscanf(buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid, 1737 &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1], 1738 &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3], 1739 &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]); 1740 if (ret != 7) 1741 return -EINVAL; 1742 1743 he_mon_cmd.aid = cpu_to_le16(aid); 1744 1745 mutex_lock(&mvm->mutex); 1746 ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD, 1747 DATA_PATH_GROUP, 0), 0, 1748 sizeof(he_mon_cmd), &he_mon_cmd); 1749 mutex_unlock(&mvm->mutex); 1750 1751 return ret ?: count; 1752 } 1753 1754 static ssize_t 1755 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1756 size_t count, loff_t *ppos) 1757 { 1758 struct iwl_mvm *mvm = file->private_data; 1759 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1760 unsigned int pos = 0; 1761 size_t bufsz = sizeof(buf); 1762 int i; 1763 1764 mutex_lock(&mvm->mutex); 1765 1766 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1767 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1768 mvm->uapsd_noagg_bssids[i].addr); 1769 1770 mutex_unlock(&mvm->mutex); 1771 1772 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1773 } 1774 1775 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1776 1777 /* Device wide debugfs entries */ 1778 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1779 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1780 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1781 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1782 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1783 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1784 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1785 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1786 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1787 MVM_DEBUGFS_READ_FILE_OPS(stations); 1788 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1789 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1790 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1791 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1792 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1793 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1794 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1795 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1796 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1797 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1798 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1799 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1800 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1801 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1802 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1803 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1804 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1805 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1806 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1807 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1808 1809 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1810 1811 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1812 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1813 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1814 #endif 1815 1816 #ifdef CONFIG_PM_SLEEP 1817 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1818 #endif 1819 #ifdef CONFIG_ACPI 1820 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1821 #endif 1822 1823 MVM_DEBUGFS_WRITE_FILE_OPS(he_sniffer_params, 32); 1824 1825 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1826 size_t count, loff_t *ppos) 1827 { 1828 struct iwl_mvm *mvm = file->private_data; 1829 struct iwl_dbg_mem_access_cmd cmd = {}; 1830 struct iwl_dbg_mem_access_rsp *rsp; 1831 struct iwl_host_cmd hcmd = { 1832 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1833 .data = { &cmd, }, 1834 .len = { sizeof(cmd) }, 1835 }; 1836 size_t delta; 1837 ssize_t ret, len; 1838 1839 if (!iwl_mvm_firmware_running(mvm)) 1840 return -EIO; 1841 1842 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1843 DEBUG_GROUP, 0); 1844 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1845 1846 /* Take care of alignment of both the position and the length */ 1847 delta = *ppos & 0x3; 1848 cmd.addr = cpu_to_le32(*ppos - delta); 1849 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1850 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1851 1852 mutex_lock(&mvm->mutex); 1853 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1854 mutex_unlock(&mvm->mutex); 1855 1856 if (ret < 0) 1857 return ret; 1858 1859 rsp = (void *)hcmd.resp_pkt->data; 1860 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1861 ret = -ENXIO; 1862 goto out; 1863 } 1864 1865 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1866 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1867 len = min(len - delta, count); 1868 if (len < 0) { 1869 ret = -EFAULT; 1870 goto out; 1871 } 1872 1873 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1874 *ppos += ret; 1875 1876 out: 1877 iwl_free_resp(&hcmd); 1878 return ret; 1879 } 1880 1881 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1882 const char __user *user_buf, size_t count, 1883 loff_t *ppos) 1884 { 1885 struct iwl_mvm *mvm = file->private_data; 1886 struct iwl_dbg_mem_access_cmd *cmd; 1887 struct iwl_dbg_mem_access_rsp *rsp; 1888 struct iwl_host_cmd hcmd = {}; 1889 size_t cmd_size; 1890 size_t data_size; 1891 u32 op, len; 1892 ssize_t ret; 1893 1894 if (!iwl_mvm_firmware_running(mvm)) 1895 return -EIO; 1896 1897 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1898 DEBUG_GROUP, 0); 1899 1900 if (*ppos & 0x3 || count < 4) { 1901 op = DEBUG_MEM_OP_WRITE_BYTES; 1902 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1903 data_size = len; 1904 } else { 1905 op = DEBUG_MEM_OP_WRITE; 1906 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1907 data_size = len << 2; 1908 } 1909 1910 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1911 cmd = kzalloc(cmd_size, GFP_KERNEL); 1912 if (!cmd) 1913 return -ENOMEM; 1914 1915 cmd->op = cpu_to_le32(op); 1916 cmd->len = cpu_to_le32(len); 1917 cmd->addr = cpu_to_le32(*ppos); 1918 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1919 kfree(cmd); 1920 return -EFAULT; 1921 } 1922 1923 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1924 hcmd.data[0] = (void *)cmd; 1925 hcmd.len[0] = cmd_size; 1926 1927 mutex_lock(&mvm->mutex); 1928 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1929 mutex_unlock(&mvm->mutex); 1930 1931 kfree(cmd); 1932 1933 if (ret < 0) 1934 return ret; 1935 1936 rsp = (void *)hcmd.resp_pkt->data; 1937 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1938 ret = -ENXIO; 1939 goto out; 1940 } 1941 1942 ret = data_size; 1943 *ppos += ret; 1944 1945 out: 1946 iwl_free_resp(&hcmd); 1947 return ret; 1948 } 1949 1950 static const struct file_operations iwl_dbgfs_mem_ops = { 1951 .read = iwl_dbgfs_mem_read, 1952 .write = iwl_dbgfs_mem_write, 1953 .open = simple_open, 1954 .llseek = default_llseek, 1955 }; 1956 1957 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 1958 struct ieee80211_vif *vif, 1959 struct ieee80211_sta *sta, 1960 struct dentry *dir) 1961 { 1962 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1963 1964 if (iwl_mvm_has_tlc_offload(mvm)) 1965 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 1966 1967 return; 1968 err: 1969 IWL_ERR(mvm, "Can't create the mvm station debugfs entry\n"); 1970 } 1971 1972 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1973 { 1974 struct dentry *bcast_dir __maybe_unused; 1975 char buf[100]; 1976 1977 spin_lock_init(&mvm->drv_stats_lock); 1978 1979 mvm->debugfs_dir = dbgfs_dir; 1980 1981 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 1982 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 1983 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 1984 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 1985 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, 0400); 1986 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, 0400); 1987 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, 0200); 1988 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, 0200); 1989 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, 0400); 1990 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, 0400); 1991 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, 0400); 1992 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 1993 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 1994 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 1995 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 1996 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 1997 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 1998 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 1999 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 2000 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 2001 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 2002 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, 0600); 2003 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 2004 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 2005 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, 0200); 2006 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 2007 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, 0200); 2008 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 2009 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 2010 #ifdef CONFIG_ACPI 2011 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400); 2012 #endif 2013 MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0200); 2014 2015 if (!debugfs_create_bool("enable_scan_iteration_notif", 2016 0600, 2017 mvm->debugfs_dir, 2018 &mvm->scan_iter_notif_enabled)) 2019 goto err; 2020 if (!debugfs_create_bool("drop_bcn_ap_mode", 0600, 2021 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 2022 goto err; 2023 2024 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2025 2026 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 2027 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 2028 bcast_dir = debugfs_create_dir("bcast_filtering", 2029 mvm->debugfs_dir); 2030 if (!bcast_dir) 2031 goto err; 2032 2033 if (!debugfs_create_bool("override", 0600, 2034 bcast_dir, 2035 &mvm->dbgfs_bcast_filtering.override)) 2036 goto err; 2037 2038 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 2039 bcast_dir, 0600); 2040 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 2041 bcast_dir, 0600); 2042 } 2043 #endif 2044 2045 #ifdef CONFIG_PM_SLEEP 2046 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, 0600); 2047 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2048 if (!debugfs_create_bool("d3_wake_sysassert", 0600, 2049 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 2050 goto err; 2051 if (!debugfs_create_u32("last_netdetect_scans", 0400, 2052 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 2053 goto err; 2054 #endif 2055 2056 if (!debugfs_create_u8("ps_disabled", 0400, 2057 mvm->debugfs_dir, &mvm->ps_disabled)) 2058 goto err; 2059 if (!debugfs_create_blob("nvm_hw", 0400, 2060 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 2061 goto err; 2062 if (!debugfs_create_blob("nvm_sw", 0400, 2063 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 2064 goto err; 2065 if (!debugfs_create_blob("nvm_calib", 0400, 2066 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 2067 goto err; 2068 if (!debugfs_create_blob("nvm_prod", 0400, 2069 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 2070 goto err; 2071 if (!debugfs_create_blob("nvm_phy_sku", 0400, 2072 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 2073 goto err; 2074 2075 debugfs_create_file("mem", 0600, dbgfs_dir, mvm, &iwl_dbgfs_mem_ops); 2076 2077 /* 2078 * Create a symlink with mac80211. It will be removed when mac80211 2079 * exists (before the opmode exists which removes the target.) 2080 */ 2081 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 2082 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 2083 goto err; 2084 2085 return 0; 2086 err: 2087 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 2088 return -ENOMEM; 2089 } 2090