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 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24 * USA 25 * 26 * The full GNU General Public License is included in this distribution 27 * in the file called COPYING. 28 * 29 * Contact Information: 30 * Intel Linux Wireless <linuxwifi@intel.com> 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32 * 33 * BSD LICENSE 34 * 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 38 * All rights reserved. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 44 * * Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * * Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in 48 * the documentation and/or other materials provided with the 49 * distribution. 50 * * Neither the name Intel Corporation nor the names of its 51 * contributors may be used to endorse or promote products derived 52 * from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65 * 66 *****************************************************************************/ 67 #include <linux/vmalloc.h> 68 #include <linux/ieee80211.h> 69 #include <linux/netdevice.h> 70 71 #include "mvm.h" 72 #include "sta.h" 73 #include "iwl-io.h" 74 #include "debugfs.h" 75 #include "fw/error-dump.h" 76 77 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 78 char __user *user_buf, 79 size_t count, loff_t *ppos) 80 { 81 struct iwl_mvm *mvm = file->private_data; 82 char buf[16]; 83 int pos, budget; 84 85 if (!iwl_mvm_is_ctdp_supported(mvm)) 86 return -EOPNOTSUPP; 87 88 if (!iwl_mvm_firmware_running(mvm) || 89 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 90 return -EIO; 91 92 mutex_lock(&mvm->mutex); 93 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 94 mutex_unlock(&mvm->mutex); 95 96 if (budget < 0) 97 return budget; 98 99 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 100 101 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 102 } 103 104 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 105 size_t count, loff_t *ppos) 106 { 107 int ret; 108 109 if (!iwl_mvm_is_ctdp_supported(mvm)) 110 return -EOPNOTSUPP; 111 112 if (!iwl_mvm_firmware_running(mvm) || 113 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 114 return -EIO; 115 116 mutex_lock(&mvm->mutex); 117 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 118 mutex_unlock(&mvm->mutex); 119 120 return ret ?: count; 121 } 122 123 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 124 size_t count, loff_t *ppos) 125 { 126 if (!iwl_mvm_firmware_running(mvm) || 127 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 128 return -EIO; 129 130 iwl_mvm_enter_ctkill(mvm); 131 132 return count; 133 } 134 135 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 136 size_t count, loff_t *ppos) 137 { 138 int ret; 139 u32 flush_arg; 140 141 if (!iwl_mvm_firmware_running(mvm) || 142 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 143 return -EIO; 144 145 if (kstrtou32(buf, 0, &flush_arg)) 146 return -EINVAL; 147 148 if (iwl_mvm_has_new_tx_api(mvm)) { 149 IWL_DEBUG_TX_QUEUES(mvm, 150 "FLUSHING all tids queues on sta_id = %d\n", 151 flush_arg); 152 mutex_lock(&mvm->mutex); 153 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFF, 0) ? : count; 154 mutex_unlock(&mvm->mutex); 155 return ret; 156 } 157 158 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 159 flush_arg); 160 161 mutex_lock(&mvm->mutex); 162 ret = iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count; 163 mutex_unlock(&mvm->mutex); 164 165 return ret; 166 } 167 168 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 169 size_t count, loff_t *ppos) 170 { 171 struct iwl_mvm_sta *mvmsta; 172 int sta_id, drain, ret; 173 174 if (!iwl_mvm_firmware_running(mvm) || 175 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 176 return -EIO; 177 178 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 179 return -EINVAL; 180 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) 181 return -EINVAL; 182 if (drain < 0 || drain > 1) 183 return -EINVAL; 184 185 mutex_lock(&mvm->mutex); 186 187 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 188 189 if (!mvmsta) 190 ret = -ENOENT; 191 else 192 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 193 194 mutex_unlock(&mvm->mutex); 195 196 return ret; 197 } 198 199 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 200 size_t count, loff_t *ppos) 201 { 202 struct iwl_mvm *mvm = file->private_data; 203 const struct fw_img *img; 204 unsigned int ofs, len; 205 size_t ret; 206 u8 *ptr; 207 208 if (!iwl_mvm_firmware_running(mvm)) 209 return -EINVAL; 210 211 /* default is to dump the entire data segment */ 212 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 213 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 214 len = img->sec[IWL_UCODE_SECTION_DATA].len; 215 216 if (mvm->dbgfs_sram_len) { 217 ofs = mvm->dbgfs_sram_offset; 218 len = mvm->dbgfs_sram_len; 219 } 220 221 ptr = kzalloc(len, GFP_KERNEL); 222 if (!ptr) 223 return -ENOMEM; 224 225 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 226 227 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 228 229 kfree(ptr); 230 231 return ret; 232 } 233 234 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 235 size_t count, loff_t *ppos) 236 { 237 const struct fw_img *img; 238 u32 offset, len; 239 u32 img_offset, img_len; 240 241 if (!iwl_mvm_firmware_running(mvm)) 242 return -EINVAL; 243 244 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 245 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 246 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 247 248 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 249 if ((offset & 0x3) || (len & 0x3)) 250 return -EINVAL; 251 252 if (offset + len > img_offset + img_len) 253 return -EINVAL; 254 255 mvm->dbgfs_sram_offset = offset; 256 mvm->dbgfs_sram_len = len; 257 } else { 258 mvm->dbgfs_sram_offset = 0; 259 mvm->dbgfs_sram_len = 0; 260 } 261 262 return count; 263 } 264 265 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 266 char __user *user_buf, 267 size_t count, loff_t *ppos) 268 { 269 struct iwl_mvm *mvm = file->private_data; 270 char buf[16]; 271 int pos; 272 273 if (!mvm->temperature_test) 274 pos = scnprintf(buf , sizeof(buf), "disabled\n"); 275 else 276 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature); 277 278 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 279 } 280 281 /* 282 * Set NIC Temperature 283 * Cause the driver to ignore the actual NIC temperature reported by the FW 284 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 285 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 286 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 287 */ 288 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 289 char *buf, size_t count, 290 loff_t *ppos) 291 { 292 int temperature; 293 294 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 295 return -EIO; 296 297 if (kstrtoint(buf, 10, &temperature)) 298 return -EINVAL; 299 /* not a legal temperature */ 300 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 301 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 302 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 303 return -EINVAL; 304 305 mutex_lock(&mvm->mutex); 306 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 307 if (!mvm->temperature_test) 308 goto out; 309 310 mvm->temperature_test = false; 311 /* Since we can't read the temp while awake, just set 312 * it to zero until we get the next RX stats from the 313 * firmware. 314 */ 315 mvm->temperature = 0; 316 } else { 317 mvm->temperature_test = true; 318 mvm->temperature = temperature; 319 } 320 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 321 mvm->temperature_test ? "En" : "Dis" , 322 mvm->temperature); 323 /* handle the temperature change */ 324 iwl_mvm_tt_handler(mvm); 325 326 out: 327 mutex_unlock(&mvm->mutex); 328 329 return count; 330 } 331 332 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 333 char __user *user_buf, 334 size_t count, loff_t *ppos) 335 { 336 struct iwl_mvm *mvm = file->private_data; 337 char buf[16]; 338 int pos, ret; 339 s32 temp; 340 341 if (!iwl_mvm_firmware_running(mvm)) 342 return -EIO; 343 344 mutex_lock(&mvm->mutex); 345 ret = iwl_mvm_get_temp(mvm, &temp); 346 mutex_unlock(&mvm->mutex); 347 348 if (ret) 349 return -EIO; 350 351 pos = scnprintf(buf , sizeof(buf), "%d\n", temp); 352 353 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 354 } 355 356 #ifdef CONFIG_ACPI 357 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 358 char __user *user_buf, 359 size_t count, loff_t *ppos) 360 { 361 struct iwl_mvm *mvm = file->private_data; 362 char buf[256]; 363 int pos = 0; 364 int bufsz = sizeof(buf); 365 int tbl_idx; 366 u8 *value; 367 368 if (!iwl_mvm_firmware_running(mvm)) 369 return -EIO; 370 371 mutex_lock(&mvm->mutex); 372 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 373 if (tbl_idx < 0) { 374 mutex_unlock(&mvm->mutex); 375 return tbl_idx; 376 } 377 378 if (!tbl_idx) { 379 pos = scnprintf(buf, bufsz, 380 "SAR geographic profile disabled\n"); 381 } else { 382 value = &mvm->geo_profiles[tbl_idx - 1].values[0]; 383 384 pos += scnprintf(buf + pos, bufsz - pos, 385 "Use geographic profile %d\n", tbl_idx); 386 pos += scnprintf(buf + pos, bufsz - pos, 387 "2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 388 value[1], value[2], value[0]); 389 pos += scnprintf(buf + pos, bufsz - pos, 390 "5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 391 value[4], value[5], value[3]); 392 } 393 mutex_unlock(&mvm->mutex); 394 395 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 396 } 397 #endif 398 399 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 400 size_t count, loff_t *ppos) 401 { 402 struct iwl_mvm *mvm = file->private_data; 403 struct ieee80211_sta *sta; 404 char buf[400]; 405 int i, pos = 0, bufsz = sizeof(buf); 406 407 mutex_lock(&mvm->mutex); 408 409 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 410 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 411 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 412 lockdep_is_held(&mvm->mutex)); 413 if (!sta) 414 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 415 else if (IS_ERR(sta)) 416 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 417 PTR_ERR(sta)); 418 else 419 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 420 sta->addr); 421 } 422 423 mutex_unlock(&mvm->mutex); 424 425 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 426 } 427 428 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 429 char __user *user_buf, 430 size_t count, loff_t *ppos) 431 { 432 struct iwl_mvm *mvm = file->private_data; 433 char buf[64]; 434 int bufsz = sizeof(buf); 435 int pos = 0; 436 437 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 438 mvm->disable_power_off); 439 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 440 mvm->disable_power_off_d3); 441 442 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 443 } 444 445 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 446 size_t count, loff_t *ppos) 447 { 448 int ret, val; 449 450 if (!iwl_mvm_firmware_running(mvm)) 451 return -EIO; 452 453 if (!strncmp("disable_power_off_d0=", buf, 21)) { 454 if (sscanf(buf + 21, "%d", &val) != 1) 455 return -EINVAL; 456 mvm->disable_power_off = val; 457 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 458 if (sscanf(buf + 21, "%d", &val) != 1) 459 return -EINVAL; 460 mvm->disable_power_off_d3 = val; 461 } else { 462 return -EINVAL; 463 } 464 465 mutex_lock(&mvm->mutex); 466 ret = iwl_mvm_power_update_device(mvm); 467 mutex_unlock(&mvm->mutex); 468 469 return ret ?: count; 470 } 471 472 #define BT_MBOX_MSG(_notif, _num, _field) \ 473 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\ 474 >> BT_MBOX##_num##_##_field##_POS) 475 476 477 #define BT_MBOX_PRINT(_num, _field, _end) \ 478 pos += scnprintf(buf + pos, bufsz - pos, \ 479 "\t%s: %d%s", \ 480 #_field, \ 481 BT_MBOX_MSG(notif, _num, _field), \ 482 true ? "\n" : ", "); 483 484 static 485 int iwl_mvm_coex_dump_mbox(struct iwl_mvm *mvm, 486 struct iwl_bt_coex_profile_notif *notif, char *buf, 487 int pos, int bufsz) 488 { 489 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 490 491 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 492 BT_MBOX_PRINT(0, LE_PROF1, false); 493 BT_MBOX_PRINT(0, LE_PROF2, false); 494 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 495 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 496 BT_MBOX_PRINT(0, INBAND_S, false); 497 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 498 BT_MBOX_PRINT(0, LE_SCAN, false); 499 BT_MBOX_PRINT(0, LE_ADV, false); 500 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 501 BT_MBOX_PRINT(0, OPEN_CON_1, true); 502 503 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 504 505 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 506 BT_MBOX_PRINT(1, IP_SR, false); 507 BT_MBOX_PRINT(1, LE_MSTR, false); 508 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 509 BT_MBOX_PRINT(1, MSG_TYPE, false); 510 BT_MBOX_PRINT(1, SSN, true); 511 512 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 513 514 BT_MBOX_PRINT(2, SNIFF_ACT, false); 515 BT_MBOX_PRINT(2, PAG, false); 516 BT_MBOX_PRINT(2, INQUIRY, false); 517 BT_MBOX_PRINT(2, CONN, false); 518 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 519 BT_MBOX_PRINT(2, DISC, false); 520 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 521 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 522 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 523 BT_MBOX_PRINT(2, SCO_DURATION, true); 524 525 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 526 527 BT_MBOX_PRINT(3, SCO_STATE, false); 528 BT_MBOX_PRINT(3, SNIFF_STATE, false); 529 BT_MBOX_PRINT(3, A2DP_STATE, false); 530 BT_MBOX_PRINT(3, A2DP_SRC, false); 531 BT_MBOX_PRINT(3, ACL_STATE, false); 532 BT_MBOX_PRINT(3, MSTR_STATE, false); 533 BT_MBOX_PRINT(3, OBX_STATE, false); 534 BT_MBOX_PRINT(3, OPEN_CON_2, false); 535 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 536 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 537 BT_MBOX_PRINT(3, INBAND_P, false); 538 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 539 BT_MBOX_PRINT(3, SSN_2, false); 540 BT_MBOX_PRINT(3, UPDATE_REQUEST, !iwl_mvm_has_new_ats_coex_api(mvm)); 541 542 if (iwl_mvm_has_new_ats_coex_api(mvm)) { 543 BT_MBOX_PRINT(4, ATS_BT_INTERVAL, false); 544 BT_MBOX_PRINT(4, ATS_BT_ACTIVE_MAX_TH, true); 545 } 546 547 return pos; 548 } 549 550 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 551 size_t count, loff_t *ppos) 552 { 553 struct iwl_mvm *mvm = file->private_data; 554 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 555 char *buf; 556 int ret, pos = 0, bufsz = sizeof(char) * 1024; 557 558 buf = kmalloc(bufsz, GFP_KERNEL); 559 if (!buf) 560 return -ENOMEM; 561 562 mutex_lock(&mvm->mutex); 563 564 pos += iwl_mvm_coex_dump_mbox(mvm, notif, buf, pos, bufsz); 565 566 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 567 notif->bt_ci_compliance); 568 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 569 le32_to_cpu(notif->primary_ch_lut)); 570 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 571 le32_to_cpu(notif->secondary_ch_lut)); 572 pos += scnprintf(buf + pos, 573 bufsz - pos, "bt_activity_grading = %d\n", 574 le32_to_cpu(notif->bt_activity_grading)); 575 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 576 notif->rrc_status & 0xF); 577 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 578 notif->ttc_status & 0xF); 579 580 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 581 IWL_MVM_BT_COEX_SYNC2SCO); 582 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 583 IWL_MVM_BT_COEX_MPLUT); 584 585 mutex_unlock(&mvm->mutex); 586 587 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 588 kfree(buf); 589 590 return ret; 591 } 592 #undef BT_MBOX_PRINT 593 594 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 595 size_t count, loff_t *ppos) 596 { 597 struct iwl_mvm *mvm = file->private_data; 598 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 599 char buf[256]; 600 int bufsz = sizeof(buf); 601 int pos = 0; 602 603 mutex_lock(&mvm->mutex); 604 605 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 606 pos += scnprintf(buf + pos, bufsz - pos, 607 "\tPrimary Channel Bitmap 0x%016llx\n", 608 le64_to_cpu(cmd->bt_primary_ci)); 609 pos += scnprintf(buf + pos, bufsz - pos, 610 "\tSecondary Channel Bitmap 0x%016llx\n", 611 le64_to_cpu(cmd->bt_secondary_ci)); 612 613 mutex_unlock(&mvm->mutex); 614 615 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 616 } 617 618 static ssize_t 619 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 620 size_t count, loff_t *ppos) 621 { 622 u32 bt_tx_prio; 623 624 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 625 return -EINVAL; 626 if (bt_tx_prio > 4) 627 return -EINVAL; 628 629 mvm->bt_tx_prio = bt_tx_prio; 630 631 return count; 632 } 633 634 static ssize_t 635 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 636 size_t count, loff_t *ppos) 637 { 638 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 639 [BT_FORCE_ANT_DIS] = "dis", 640 [BT_FORCE_ANT_AUTO] = "auto", 641 [BT_FORCE_ANT_BT] = "bt", 642 [BT_FORCE_ANT_WIFI] = "wifi", 643 }; 644 int ret, bt_force_ant_mode; 645 646 for (bt_force_ant_mode = 0; 647 bt_force_ant_mode < ARRAY_SIZE(modes_str); 648 bt_force_ant_mode++) { 649 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 650 break; 651 } 652 653 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 654 return -EINVAL; 655 656 ret = 0; 657 mutex_lock(&mvm->mutex); 658 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 659 goto out; 660 661 mvm->bt_force_ant_mode = bt_force_ant_mode; 662 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 663 modes_str[mvm->bt_force_ant_mode]); 664 665 if (iwl_mvm_firmware_running(mvm)) 666 ret = iwl_mvm_send_bt_init_conf(mvm); 667 else 668 ret = 0; 669 670 out: 671 mutex_unlock(&mvm->mutex); 672 return ret ?: count; 673 } 674 675 #define PRINT_STATS_LE32(_struct, _memb) \ 676 pos += scnprintf(buf + pos, bufsz - pos, \ 677 fmt_table, #_memb, \ 678 le32_to_cpu(_struct->_memb)) 679 680 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 681 char __user *user_buf, size_t count, 682 loff_t *ppos) 683 { 684 struct iwl_mvm *mvm = file->private_data; 685 static const char *fmt_table = "\t%-30s %10u\n"; 686 static const char *fmt_header = "%-32s\n"; 687 int pos = 0; 688 char *buf; 689 int ret; 690 size_t bufsz; 691 692 if (iwl_mvm_has_new_rx_stats_api(mvm)) 693 bufsz = ((sizeof(struct mvm_statistics_rx) / 694 sizeof(__le32)) * 43) + (4 * 33) + 1; 695 else 696 /* 43 = size of each data line; 33 = size of each header */ 697 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 698 sizeof(__le32)) * 43) + (4 * 33) + 1; 699 700 buf = kzalloc(bufsz, GFP_KERNEL); 701 if (!buf) 702 return -ENOMEM; 703 704 mutex_lock(&mvm->mutex); 705 706 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 707 "Statistics_Rx - OFDM"); 708 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 709 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 710 711 PRINT_STATS_LE32(ofdm, ina_cnt); 712 PRINT_STATS_LE32(ofdm, fina_cnt); 713 PRINT_STATS_LE32(ofdm, plcp_err); 714 PRINT_STATS_LE32(ofdm, crc32_err); 715 PRINT_STATS_LE32(ofdm, overrun_err); 716 PRINT_STATS_LE32(ofdm, early_overrun_err); 717 PRINT_STATS_LE32(ofdm, crc32_good); 718 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 719 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 720 PRINT_STATS_LE32(ofdm, sfd_timeout); 721 PRINT_STATS_LE32(ofdm, fina_timeout); 722 PRINT_STATS_LE32(ofdm, unresponded_rts); 723 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 724 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 725 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 726 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 727 PRINT_STATS_LE32(ofdm, dsp_self_kill); 728 PRINT_STATS_LE32(ofdm, mh_format_err); 729 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 730 PRINT_STATS_LE32(ofdm, reserved); 731 } else { 732 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 733 734 PRINT_STATS_LE32(ofdm, unresponded_rts); 735 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 736 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 737 PRINT_STATS_LE32(ofdm, dsp_self_kill); 738 PRINT_STATS_LE32(ofdm, reserved); 739 } 740 741 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 742 "Statistics_Rx - CCK"); 743 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 744 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 745 746 PRINT_STATS_LE32(cck, ina_cnt); 747 PRINT_STATS_LE32(cck, fina_cnt); 748 PRINT_STATS_LE32(cck, plcp_err); 749 PRINT_STATS_LE32(cck, crc32_err); 750 PRINT_STATS_LE32(cck, overrun_err); 751 PRINT_STATS_LE32(cck, early_overrun_err); 752 PRINT_STATS_LE32(cck, crc32_good); 753 PRINT_STATS_LE32(cck, false_alarm_cnt); 754 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 755 PRINT_STATS_LE32(cck, sfd_timeout); 756 PRINT_STATS_LE32(cck, fina_timeout); 757 PRINT_STATS_LE32(cck, unresponded_rts); 758 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 759 PRINT_STATS_LE32(cck, sent_ack_cnt); 760 PRINT_STATS_LE32(cck, sent_cts_cnt); 761 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 762 PRINT_STATS_LE32(cck, dsp_self_kill); 763 PRINT_STATS_LE32(cck, mh_format_err); 764 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 765 PRINT_STATS_LE32(cck, reserved); 766 } else { 767 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 768 769 PRINT_STATS_LE32(cck, unresponded_rts); 770 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 771 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 772 PRINT_STATS_LE32(cck, dsp_self_kill); 773 PRINT_STATS_LE32(cck, reserved); 774 } 775 776 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 777 "Statistics_Rx - GENERAL"); 778 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 779 struct mvm_statistics_rx_non_phy_v3 *general = 780 &mvm->rx_stats_v3.general; 781 782 PRINT_STATS_LE32(general, bogus_cts); 783 PRINT_STATS_LE32(general, bogus_ack); 784 PRINT_STATS_LE32(general, non_bssid_frames); 785 PRINT_STATS_LE32(general, filtered_frames); 786 PRINT_STATS_LE32(general, non_channel_beacons); 787 PRINT_STATS_LE32(general, channel_beacons); 788 PRINT_STATS_LE32(general, num_missed_bcon); 789 PRINT_STATS_LE32(general, adc_rx_saturation_time); 790 PRINT_STATS_LE32(general, ina_detection_search_time); 791 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 792 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 793 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 794 PRINT_STATS_LE32(general, interference_data_flag); 795 PRINT_STATS_LE32(general, channel_load); 796 PRINT_STATS_LE32(general, dsp_false_alarms); 797 PRINT_STATS_LE32(general, beacon_rssi_a); 798 PRINT_STATS_LE32(general, beacon_rssi_b); 799 PRINT_STATS_LE32(general, beacon_rssi_c); 800 PRINT_STATS_LE32(general, beacon_energy_a); 801 PRINT_STATS_LE32(general, beacon_energy_b); 802 PRINT_STATS_LE32(general, beacon_energy_c); 803 PRINT_STATS_LE32(general, num_bt_kills); 804 PRINT_STATS_LE32(general, mac_id); 805 PRINT_STATS_LE32(general, directed_data_mpdu); 806 } else { 807 struct mvm_statistics_rx_non_phy *general = 808 &mvm->rx_stats.general; 809 810 PRINT_STATS_LE32(general, bogus_cts); 811 PRINT_STATS_LE32(general, bogus_ack); 812 PRINT_STATS_LE32(general, non_channel_beacons); 813 PRINT_STATS_LE32(general, channel_beacons); 814 PRINT_STATS_LE32(general, num_missed_bcon); 815 PRINT_STATS_LE32(general, adc_rx_saturation_time); 816 PRINT_STATS_LE32(general, ina_detection_search_time); 817 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 818 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 819 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 820 PRINT_STATS_LE32(general, interference_data_flag); 821 PRINT_STATS_LE32(general, channel_load); 822 PRINT_STATS_LE32(general, beacon_rssi_a); 823 PRINT_STATS_LE32(general, beacon_rssi_b); 824 PRINT_STATS_LE32(general, beacon_rssi_c); 825 PRINT_STATS_LE32(general, beacon_energy_a); 826 PRINT_STATS_LE32(general, beacon_energy_b); 827 PRINT_STATS_LE32(general, beacon_energy_c); 828 PRINT_STATS_LE32(general, num_bt_kills); 829 PRINT_STATS_LE32(general, mac_id); 830 } 831 832 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 833 "Statistics_Rx - HT"); 834 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 835 struct mvm_statistics_rx_ht_phy_v1 *ht = 836 &mvm->rx_stats_v3.ofdm_ht; 837 838 PRINT_STATS_LE32(ht, plcp_err); 839 PRINT_STATS_LE32(ht, overrun_err); 840 PRINT_STATS_LE32(ht, early_overrun_err); 841 PRINT_STATS_LE32(ht, crc32_good); 842 PRINT_STATS_LE32(ht, crc32_err); 843 PRINT_STATS_LE32(ht, mh_format_err); 844 PRINT_STATS_LE32(ht, agg_crc32_good); 845 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 846 PRINT_STATS_LE32(ht, agg_cnt); 847 PRINT_STATS_LE32(ht, unsupport_mcs); 848 } else { 849 struct mvm_statistics_rx_ht_phy *ht = 850 &mvm->rx_stats.ofdm_ht; 851 852 PRINT_STATS_LE32(ht, mh_format_err); 853 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 854 PRINT_STATS_LE32(ht, agg_cnt); 855 PRINT_STATS_LE32(ht, unsupport_mcs); 856 } 857 858 mutex_unlock(&mvm->mutex); 859 860 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 861 kfree(buf); 862 863 return ret; 864 } 865 #undef PRINT_STAT_LE32 866 867 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 868 char __user *user_buf, size_t count, 869 loff_t *ppos, 870 struct iwl_mvm_frame_stats *stats) 871 { 872 char *buff, *pos, *endpos; 873 int idx, i; 874 int ret; 875 static const size_t bufsz = 1024; 876 877 buff = kmalloc(bufsz, GFP_KERNEL); 878 if (!buff) 879 return -ENOMEM; 880 881 spin_lock_bh(&mvm->drv_stats_lock); 882 883 pos = buff; 884 endpos = pos + bufsz; 885 886 pos += scnprintf(pos, endpos - pos, 887 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 888 stats->legacy_frames, 889 stats->ht_frames, 890 stats->vht_frames); 891 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 892 stats->bw_20_frames, 893 stats->bw_40_frames, 894 stats->bw_80_frames); 895 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 896 stats->ngi_frames, 897 stats->sgi_frames); 898 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 899 stats->siso_frames, 900 stats->mimo2_frames); 901 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 902 stats->fail_frames, 903 stats->success_frames); 904 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 905 stats->agg_frames); 906 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 907 stats->ampdu_count); 908 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 909 stats->ampdu_count > 0 ? 910 (stats->agg_frames / stats->ampdu_count) : 0); 911 912 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 913 914 idx = stats->last_frame_idx - 1; 915 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 916 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 917 if (stats->last_rates[idx] == 0) 918 continue; 919 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 920 (int)(ARRAY_SIZE(stats->last_rates) - i)); 921 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 922 } 923 spin_unlock_bh(&mvm->drv_stats_lock); 924 925 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 926 kfree(buff); 927 928 return ret; 929 } 930 931 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 932 char __user *user_buf, size_t count, 933 loff_t *ppos) 934 { 935 struct iwl_mvm *mvm = file->private_data; 936 937 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 938 &mvm->drv_rx_stats); 939 } 940 941 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 942 size_t count, loff_t *ppos) 943 { 944 int __maybe_unused ret; 945 946 if (!iwl_mvm_firmware_running(mvm)) 947 return -EIO; 948 949 mutex_lock(&mvm->mutex); 950 951 /* allow one more restart that we're provoking here */ 952 if (mvm->fw_restart >= 0) 953 mvm->fw_restart++; 954 955 /* take the return value to make compiler happy - it will fail anyway */ 956 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 957 958 mutex_unlock(&mvm->mutex); 959 960 return count; 961 } 962 963 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 964 size_t count, loff_t *ppos) 965 { 966 int ret; 967 968 if (!iwl_mvm_firmware_running(mvm)) 969 return -EIO; 970 971 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 972 if (ret) 973 return ret; 974 975 iwl_force_nmi(mvm->trans); 976 977 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 978 979 return count; 980 } 981 982 static ssize_t 983 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 984 char __user *user_buf, 985 size_t count, loff_t *ppos) 986 { 987 struct iwl_mvm *mvm = file->private_data; 988 int pos = 0; 989 char buf[32]; 990 const size_t bufsz = sizeof(buf); 991 992 /* print which antennas were set for the scan command by the user */ 993 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 994 if (mvm->scan_rx_ant & ANT_A) 995 pos += scnprintf(buf + pos, bufsz - pos, "A"); 996 if (mvm->scan_rx_ant & ANT_B) 997 pos += scnprintf(buf + pos, bufsz - pos, "B"); 998 if (mvm->scan_rx_ant & ANT_C) 999 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1000 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1001 1002 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1003 } 1004 1005 static ssize_t 1006 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1007 size_t count, loff_t *ppos) 1008 { 1009 u8 scan_rx_ant; 1010 1011 if (!iwl_mvm_firmware_running(mvm)) 1012 return -EIO; 1013 1014 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1015 return -EINVAL; 1016 if (scan_rx_ant > ANT_ABC) 1017 return -EINVAL; 1018 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1019 return -EINVAL; 1020 1021 if (mvm->scan_rx_ant != scan_rx_ant) { 1022 mvm->scan_rx_ant = scan_rx_ant; 1023 if (fw_has_capa(&mvm->fw->ucode_capa, 1024 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1025 iwl_mvm_config_scan(mvm); 1026 } 1027 1028 return count; 1029 } 1030 1031 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1032 char *buf, size_t count, 1033 loff_t *ppos) 1034 { 1035 struct iwl_rss_config_cmd cmd = { 1036 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1037 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1038 IWL_RSS_HASH_TYPE_IPV4_UDP | 1039 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1040 IWL_RSS_HASH_TYPE_IPV6_TCP | 1041 IWL_RSS_HASH_TYPE_IPV6_UDP | 1042 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1043 }; 1044 int ret, i, num_repeats, nbytes = count / 2; 1045 1046 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1047 if (ret) 1048 return ret; 1049 1050 /* 1051 * The input is the redirection table, partial or full. 1052 * Repeat the pattern if needed. 1053 * For example, input of 01020F will be repeated 42 times, 1054 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1055 * queues 3 - 14). 1056 */ 1057 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1058 for (i = 1; i < num_repeats; i++) 1059 memcpy(&cmd.indirection_table[i * nbytes], 1060 cmd.indirection_table, nbytes); 1061 /* handle cut in the middle pattern for the last places */ 1062 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1063 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1064 1065 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1066 1067 mutex_lock(&mvm->mutex); 1068 if (iwl_mvm_firmware_running(mvm)) 1069 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1070 sizeof(cmd), &cmd); 1071 else 1072 ret = 0; 1073 mutex_unlock(&mvm->mutex); 1074 1075 return ret ?: count; 1076 } 1077 1078 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1079 char *buf, size_t count, 1080 loff_t *ppos) 1081 { 1082 struct iwl_rx_cmd_buffer rxb = { 1083 ._rx_page_order = 0, 1084 .truesize = 0, /* not used */ 1085 ._offset = 0, 1086 }; 1087 struct iwl_rx_packet *pkt; 1088 struct iwl_rx_mpdu_desc *desc; 1089 int bin_len = count / 2; 1090 int ret = -EINVAL; 1091 1092 if (!iwl_mvm_firmware_running(mvm)) 1093 return -EIO; 1094 1095 /* supporting only 9000 descriptor */ 1096 if (!mvm->trans->cfg->mq_rx_supported) 1097 return -ENOTSUPP; 1098 1099 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1100 if (!rxb._page) 1101 return -ENOMEM; 1102 pkt = rxb_addr(&rxb); 1103 1104 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1105 if (ret) 1106 goto out; 1107 1108 /* avoid invalid memory access */ 1109 if (bin_len < sizeof(*pkt) + sizeof(*desc)) 1110 goto out; 1111 1112 /* check this is RX packet */ 1113 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1114 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1115 goto out; 1116 1117 /* check the length in metadata matches actual received length */ 1118 desc = (void *)pkt->data; 1119 if (le16_to_cpu(desc->mpdu_len) != 1120 (bin_len - sizeof(*desc) - sizeof(*pkt))) 1121 goto out; 1122 1123 local_bh_disable(); 1124 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1125 local_bh_enable(); 1126 ret = 0; 1127 1128 out: 1129 iwl_free_rxb(&rxb); 1130 1131 return ret ?: count; 1132 } 1133 1134 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1135 char __user *user_buf, 1136 size_t count, loff_t *ppos) 1137 { 1138 struct iwl_mvm *mvm = file->private_data; 1139 int conf; 1140 char buf[8]; 1141 const size_t bufsz = sizeof(buf); 1142 int pos = 0; 1143 1144 mutex_lock(&mvm->mutex); 1145 conf = mvm->fwrt.dump.conf; 1146 mutex_unlock(&mvm->mutex); 1147 1148 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1149 1150 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1151 } 1152 1153 /* 1154 * Enable / Disable continuous recording. 1155 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1156 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1157 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1158 */ 1159 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1160 char *buf, size_t count, 1161 loff_t *ppos) 1162 { 1163 struct iwl_trans *trans = mvm->trans; 1164 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 1165 struct iwl_continuous_record_cmd cont_rec = {}; 1166 int ret, rec_mode; 1167 1168 if (!iwl_mvm_firmware_running(mvm)) 1169 return -EIO; 1170 1171 if (!dest) 1172 return -EOPNOTSUPP; 1173 1174 if (dest->monitor_mode != SMEM_MODE || 1175 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1176 return -EOPNOTSUPP; 1177 1178 ret = kstrtoint(buf, 0, &rec_mode); 1179 if (ret) 1180 return ret; 1181 1182 cont_rec.record_mode.enable_recording = rec_mode ? 1183 cpu_to_le16(ENABLE_CONT_RECORDING) : 1184 cpu_to_le16(DISABLE_CONT_RECORDING); 1185 1186 mutex_lock(&mvm->mutex); 1187 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1188 sizeof(cont_rec), &cont_rec); 1189 mutex_unlock(&mvm->mutex); 1190 1191 return ret ?: count; 1192 } 1193 1194 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1195 char *buf, size_t count, 1196 loff_t *ppos) 1197 { 1198 unsigned int conf_id; 1199 int ret; 1200 1201 if (!iwl_mvm_firmware_running(mvm)) 1202 return -EIO; 1203 1204 ret = kstrtouint(buf, 0, &conf_id); 1205 if (ret) 1206 return ret; 1207 1208 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1209 return -EINVAL; 1210 1211 mutex_lock(&mvm->mutex); 1212 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1213 mutex_unlock(&mvm->mutex); 1214 1215 return ret ?: count; 1216 } 1217 1218 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1219 char *buf, size_t count, 1220 loff_t *ppos) 1221 { 1222 int ret; 1223 1224 if (!iwl_mvm_firmware_running(mvm)) 1225 return -EIO; 1226 1227 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1228 if (ret) 1229 return ret; 1230 if (count == 0) 1231 return 0; 1232 1233 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1234 (count - 1), NULL); 1235 1236 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1237 1238 return count; 1239 } 1240 1241 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1242 char *buf, size_t count, 1243 loff_t *ppos) 1244 { 1245 unsigned int max_amsdu_len; 1246 int ret; 1247 1248 ret = kstrtouint(buf, 0, &max_amsdu_len); 1249 if (ret) 1250 return ret; 1251 1252 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1253 return -EINVAL; 1254 mvm->max_amsdu_len = max_amsdu_len; 1255 1256 return count; 1257 } 1258 1259 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1260 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1261 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1262 char __user *user_buf, 1263 size_t count, loff_t *ppos) 1264 { 1265 struct iwl_mvm *mvm = file->private_data; 1266 struct iwl_bcast_filter_cmd cmd; 1267 const struct iwl_fw_bcast_filter *filter; 1268 char *buf; 1269 int bufsz = 1024; 1270 int i, j, pos = 0; 1271 ssize_t ret; 1272 1273 buf = kzalloc(bufsz, GFP_KERNEL); 1274 if (!buf) 1275 return -ENOMEM; 1276 1277 mutex_lock(&mvm->mutex); 1278 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1279 ADD_TEXT("None\n"); 1280 mutex_unlock(&mvm->mutex); 1281 goto out; 1282 } 1283 mutex_unlock(&mvm->mutex); 1284 1285 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1286 filter = &cmd.filters[i]; 1287 1288 ADD_TEXT("Filter [%d]:\n", i); 1289 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1290 ADD_TEXT("\tFrame Type: %s\n", 1291 filter->frame_type ? "IPv4" : "Generic"); 1292 1293 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1294 const struct iwl_fw_bcast_filter_attr *attr; 1295 1296 attr = &filter->attrs[j]; 1297 if (!attr->mask) 1298 break; 1299 1300 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1301 j, attr->offset, 1302 attr->offset_type ? "IP End" : 1303 "Payload Start", 1304 be32_to_cpu(attr->mask), 1305 be32_to_cpu(attr->val), 1306 le16_to_cpu(attr->reserved1)); 1307 } 1308 } 1309 out: 1310 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1311 kfree(buf); 1312 return ret; 1313 } 1314 1315 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1316 size_t count, loff_t *ppos) 1317 { 1318 int pos, next_pos; 1319 struct iwl_fw_bcast_filter filter = {}; 1320 struct iwl_bcast_filter_cmd cmd; 1321 u32 filter_id, attr_id, mask, value; 1322 int err = 0; 1323 1324 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1325 &filter.frame_type, &pos) != 3) 1326 return -EINVAL; 1327 1328 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1329 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1330 return -EINVAL; 1331 1332 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1333 attr_id++) { 1334 struct iwl_fw_bcast_filter_attr *attr = 1335 &filter.attrs[attr_id]; 1336 1337 if (pos >= count) 1338 break; 1339 1340 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1341 &attr->offset, &attr->offset_type, 1342 &mask, &value, &next_pos) != 4) 1343 return -EINVAL; 1344 1345 attr->mask = cpu_to_be32(mask); 1346 attr->val = cpu_to_be32(value); 1347 if (mask) 1348 filter.num_attrs++; 1349 1350 pos += next_pos; 1351 } 1352 1353 mutex_lock(&mvm->mutex); 1354 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1355 &filter, sizeof(filter)); 1356 1357 /* send updated bcast filtering configuration */ 1358 if (iwl_mvm_firmware_running(mvm) && 1359 mvm->dbgfs_bcast_filtering.override && 1360 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1361 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1362 sizeof(cmd), &cmd); 1363 mutex_unlock(&mvm->mutex); 1364 1365 return err ?: count; 1366 } 1367 1368 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1369 char __user *user_buf, 1370 size_t count, loff_t *ppos) 1371 { 1372 struct iwl_mvm *mvm = file->private_data; 1373 struct iwl_bcast_filter_cmd cmd; 1374 char *buf; 1375 int bufsz = 1024; 1376 int i, pos = 0; 1377 ssize_t ret; 1378 1379 buf = kzalloc(bufsz, GFP_KERNEL); 1380 if (!buf) 1381 return -ENOMEM; 1382 1383 mutex_lock(&mvm->mutex); 1384 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1385 ADD_TEXT("None\n"); 1386 mutex_unlock(&mvm->mutex); 1387 goto out; 1388 } 1389 mutex_unlock(&mvm->mutex); 1390 1391 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1392 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1393 1394 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1395 i, mac->default_discard, mac->attached_filters); 1396 } 1397 out: 1398 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1399 kfree(buf); 1400 return ret; 1401 } 1402 1403 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1404 char *buf, size_t count, 1405 loff_t *ppos) 1406 { 1407 struct iwl_bcast_filter_cmd cmd; 1408 struct iwl_fw_bcast_mac mac = {}; 1409 u32 mac_id, attached_filters; 1410 int err = 0; 1411 1412 if (!mvm->bcast_filters) 1413 return -ENOENT; 1414 1415 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1416 &attached_filters) != 3) 1417 return -EINVAL; 1418 1419 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1420 mac.default_discard > 1 || 1421 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1422 return -EINVAL; 1423 1424 mac.attached_filters = cpu_to_le16(attached_filters); 1425 1426 mutex_lock(&mvm->mutex); 1427 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1428 &mac, sizeof(mac)); 1429 1430 /* send updated bcast filtering configuration */ 1431 if (iwl_mvm_firmware_running(mvm) && 1432 mvm->dbgfs_bcast_filtering.override && 1433 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1434 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1435 sizeof(cmd), &cmd); 1436 mutex_unlock(&mvm->mutex); 1437 1438 return err ?: count; 1439 } 1440 #endif 1441 1442 #ifdef CONFIG_PM_SLEEP 1443 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1444 size_t count, loff_t *ppos) 1445 { 1446 int store; 1447 1448 if (sscanf(buf, "%d", &store) != 1) 1449 return -EINVAL; 1450 1451 mvm->store_d3_resume_sram = store; 1452 1453 return count; 1454 } 1455 1456 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1457 size_t count, loff_t *ppos) 1458 { 1459 struct iwl_mvm *mvm = file->private_data; 1460 const struct fw_img *img; 1461 int ofs, len, pos = 0; 1462 size_t bufsz, ret; 1463 char *buf; 1464 u8 *ptr = mvm->d3_resume_sram; 1465 1466 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1467 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1468 1469 bufsz = len * 4 + 256; 1470 buf = kzalloc(bufsz, GFP_KERNEL); 1471 if (!buf) 1472 return -ENOMEM; 1473 1474 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1475 mvm->store_d3_resume_sram ? "en" : "dis"); 1476 1477 if (ptr) { 1478 for (ofs = 0; ofs < len; ofs += 16) { 1479 pos += scnprintf(buf + pos, bufsz - pos, 1480 "0x%.4x %16ph\n", ofs, ptr + ofs); 1481 } 1482 } else { 1483 pos += scnprintf(buf + pos, bufsz - pos, 1484 "(no data captured)\n"); 1485 } 1486 1487 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1488 1489 kfree(buf); 1490 1491 return ret; 1492 } 1493 #endif 1494 1495 #define PRINT_MVM_REF(ref) do { \ 1496 if (mvm->refs[ref]) \ 1497 pos += scnprintf(buf + pos, bufsz - pos, \ 1498 "\t(0x%lx): %d %s\n", \ 1499 BIT(ref), mvm->refs[ref], #ref); \ 1500 } while (0) 1501 1502 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1503 char __user *user_buf, 1504 size_t count, loff_t *ppos) 1505 { 1506 struct iwl_mvm *mvm = file->private_data; 1507 int i, pos = 0; 1508 char buf[256]; 1509 const size_t bufsz = sizeof(buf); 1510 u32 refs = 0; 1511 1512 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1513 if (mvm->refs[i]) 1514 refs |= BIT(i); 1515 1516 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1517 refs); 1518 1519 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1520 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1521 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1522 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1523 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1524 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1525 PRINT_MVM_REF(IWL_MVM_REF_USER); 1526 PRINT_MVM_REF(IWL_MVM_REF_TX); 1527 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1528 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1529 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1530 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1531 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1532 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1533 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1534 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1535 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1536 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1537 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1538 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1539 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1540 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1541 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1542 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1543 PRINT_MVM_REF(IWL_MVM_REF_RX); 1544 1545 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1546 } 1547 1548 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1549 size_t count, loff_t *ppos) 1550 { 1551 unsigned long value; 1552 int ret; 1553 bool taken; 1554 1555 ret = kstrtoul(buf, 10, &value); 1556 if (ret < 0) 1557 return ret; 1558 1559 mutex_lock(&mvm->mutex); 1560 1561 taken = mvm->refs[IWL_MVM_REF_USER]; 1562 if (value == 1 && !taken) 1563 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1564 else if (value == 0 && taken) 1565 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1566 else 1567 ret = -EINVAL; 1568 1569 mutex_unlock(&mvm->mutex); 1570 1571 if (ret < 0) 1572 return ret; 1573 return count; 1574 } 1575 1576 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1577 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1578 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1579 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1580 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1581 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1582 &iwl_dbgfs_##name##_ops)) \ 1583 goto err; \ 1584 } while (0) 1585 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1586 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1587 1588 static ssize_t 1589 iwl_dbgfs_prph_reg_read(struct file *file, 1590 char __user *user_buf, 1591 size_t count, loff_t *ppos) 1592 { 1593 struct iwl_mvm *mvm = file->private_data; 1594 int pos = 0; 1595 char buf[32]; 1596 const size_t bufsz = sizeof(buf); 1597 int ret; 1598 1599 if (!mvm->dbgfs_prph_reg_addr) 1600 return -EINVAL; 1601 1602 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1603 if (ret) 1604 return ret; 1605 1606 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1607 mvm->dbgfs_prph_reg_addr, 1608 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1609 1610 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1611 1612 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1613 } 1614 1615 static ssize_t 1616 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1617 size_t count, loff_t *ppos) 1618 { 1619 u8 args; 1620 u32 value; 1621 int ret; 1622 1623 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1624 /* if we only want to set the reg address - nothing more to do */ 1625 if (args == 1) 1626 goto out; 1627 1628 /* otherwise, make sure we have both address and value */ 1629 if (args != 2) 1630 return -EINVAL; 1631 1632 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1633 if (ret) 1634 return ret; 1635 1636 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1637 1638 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1639 out: 1640 return count; 1641 } 1642 1643 static ssize_t 1644 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1645 size_t count, loff_t *ppos) 1646 { 1647 int ret; 1648 1649 if (!iwl_mvm_firmware_running(mvm)) 1650 return -EIO; 1651 1652 mutex_lock(&mvm->mutex); 1653 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1654 mutex_unlock(&mvm->mutex); 1655 1656 return ret ?: count; 1657 } 1658 1659 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1660 1661 /* Device wide debugfs entries */ 1662 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1663 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1664 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1665 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1666 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1667 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1668 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1669 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1670 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1671 MVM_DEBUGFS_READ_FILE_OPS(stations); 1672 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1673 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1674 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1675 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1676 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1677 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1678 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1679 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1680 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1681 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1682 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1683 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1684 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1685 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1686 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1687 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1688 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1689 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1690 1691 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1692 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1693 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1694 #endif 1695 1696 #ifdef CONFIG_PM_SLEEP 1697 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1698 #endif 1699 #ifdef CONFIG_ACPI 1700 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1701 #endif 1702 1703 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1704 size_t count, loff_t *ppos) 1705 { 1706 struct iwl_mvm *mvm = file->private_data; 1707 struct iwl_dbg_mem_access_cmd cmd = {}; 1708 struct iwl_dbg_mem_access_rsp *rsp; 1709 struct iwl_host_cmd hcmd = { 1710 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1711 .data = { &cmd, }, 1712 .len = { sizeof(cmd) }, 1713 }; 1714 size_t delta; 1715 ssize_t ret, len; 1716 1717 if (!iwl_mvm_firmware_running(mvm)) 1718 return -EIO; 1719 1720 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1721 DEBUG_GROUP, 0); 1722 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1723 1724 /* Take care of alignment of both the position and the length */ 1725 delta = *ppos & 0x3; 1726 cmd.addr = cpu_to_le32(*ppos - delta); 1727 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1728 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1729 1730 mutex_lock(&mvm->mutex); 1731 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1732 mutex_unlock(&mvm->mutex); 1733 1734 if (ret < 0) 1735 return ret; 1736 1737 rsp = (void *)hcmd.resp_pkt->data; 1738 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1739 ret = -ENXIO; 1740 goto out; 1741 } 1742 1743 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1744 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1745 len = min(len - delta, count); 1746 if (len < 0) { 1747 ret = -EFAULT; 1748 goto out; 1749 } 1750 1751 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1752 *ppos += ret; 1753 1754 out: 1755 iwl_free_resp(&hcmd); 1756 return ret; 1757 } 1758 1759 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1760 const char __user *user_buf, size_t count, 1761 loff_t *ppos) 1762 { 1763 struct iwl_mvm *mvm = file->private_data; 1764 struct iwl_dbg_mem_access_cmd *cmd; 1765 struct iwl_dbg_mem_access_rsp *rsp; 1766 struct iwl_host_cmd hcmd = {}; 1767 size_t cmd_size; 1768 size_t data_size; 1769 u32 op, len; 1770 ssize_t ret; 1771 1772 if (!iwl_mvm_firmware_running(mvm)) 1773 return -EIO; 1774 1775 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1776 DEBUG_GROUP, 0); 1777 1778 if (*ppos & 0x3 || count < 4) { 1779 op = DEBUG_MEM_OP_WRITE_BYTES; 1780 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1781 data_size = len; 1782 } else { 1783 op = DEBUG_MEM_OP_WRITE; 1784 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1785 data_size = len << 2; 1786 } 1787 1788 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1789 cmd = kzalloc(cmd_size, GFP_KERNEL); 1790 if (!cmd) 1791 return -ENOMEM; 1792 1793 cmd->op = cpu_to_le32(op); 1794 cmd->len = cpu_to_le32(len); 1795 cmd->addr = cpu_to_le32(*ppos); 1796 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1797 kfree(cmd); 1798 return -EFAULT; 1799 } 1800 1801 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1802 hcmd.data[0] = (void *)cmd; 1803 hcmd.len[0] = cmd_size; 1804 1805 mutex_lock(&mvm->mutex); 1806 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1807 mutex_unlock(&mvm->mutex); 1808 1809 kfree(cmd); 1810 1811 if (ret < 0) 1812 return ret; 1813 1814 rsp = (void *)hcmd.resp_pkt->data; 1815 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1816 ret = -ENXIO; 1817 goto out; 1818 } 1819 1820 ret = data_size; 1821 *ppos += ret; 1822 1823 out: 1824 iwl_free_resp(&hcmd); 1825 return ret; 1826 } 1827 1828 static const struct file_operations iwl_dbgfs_mem_ops = { 1829 .read = iwl_dbgfs_mem_read, 1830 .write = iwl_dbgfs_mem_write, 1831 .open = simple_open, 1832 .llseek = default_llseek, 1833 }; 1834 1835 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1836 { 1837 struct dentry *bcast_dir __maybe_unused; 1838 char buf[100]; 1839 1840 spin_lock_init(&mvm->drv_stats_lock); 1841 1842 mvm->debugfs_dir = dbgfs_dir; 1843 1844 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1845 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1846 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1847 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1848 S_IWUSR | S_IRUSR); 1849 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1850 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); 1851 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); 1852 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); 1853 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1854 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1855 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1856 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1857 S_IRUSR | S_IWUSR); 1858 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1859 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1860 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1861 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1862 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1863 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1864 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1865 S_IWUSR | S_IRUSR); 1866 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1867 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1868 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1869 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1870 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR); 1871 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1872 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1873 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); 1874 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); 1875 #ifdef CONFIG_ACPI 1876 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR); 1877 #endif 1878 1879 if (!debugfs_create_bool("enable_scan_iteration_notif", 1880 S_IRUSR | S_IWUSR, 1881 mvm->debugfs_dir, 1882 &mvm->scan_iter_notif_enabled)) 1883 goto err; 1884 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR, 1885 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 1886 goto err; 1887 1888 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1889 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1890 bcast_dir = debugfs_create_dir("bcast_filtering", 1891 mvm->debugfs_dir); 1892 if (!bcast_dir) 1893 goto err; 1894 1895 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1896 bcast_dir, 1897 &mvm->dbgfs_bcast_filtering.override)) 1898 goto err; 1899 1900 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1901 bcast_dir, S_IWUSR | S_IRUSR); 1902 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1903 bcast_dir, S_IWUSR | S_IRUSR); 1904 } 1905 #endif 1906 1907 #ifdef CONFIG_PM_SLEEP 1908 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1909 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1910 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1911 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1912 goto err; 1913 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 1914 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 1915 goto err; 1916 #endif 1917 1918 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 1919 mvm->debugfs_dir, &mvm->ps_disabled)) 1920 goto err; 1921 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 1922 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 1923 goto err; 1924 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 1925 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 1926 goto err; 1927 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 1928 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 1929 goto err; 1930 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 1931 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 1932 goto err; 1933 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 1934 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 1935 goto err; 1936 1937 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm, 1938 &iwl_dbgfs_mem_ops); 1939 1940 /* 1941 * Create a symlink with mac80211. It will be removed when mac80211 1942 * exists (before the opmode exists which removes the target.) 1943 */ 1944 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 1945 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 1946 goto err; 1947 1948 return 0; 1949 err: 1950 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 1951 return -ENOMEM; 1952 } 1953