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_bt_coex_profile_notif *notif, char *buf, 486 int pos, int bufsz) 487 { 488 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 489 490 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 491 BT_MBOX_PRINT(0, LE_PROF1, false); 492 BT_MBOX_PRINT(0, LE_PROF2, false); 493 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 494 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 495 BT_MBOX_PRINT(0, INBAND_S, false); 496 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 497 BT_MBOX_PRINT(0, LE_SCAN, false); 498 BT_MBOX_PRINT(0, LE_ADV, false); 499 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 500 BT_MBOX_PRINT(0, OPEN_CON_1, true); 501 502 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 503 504 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 505 BT_MBOX_PRINT(1, IP_SR, false); 506 BT_MBOX_PRINT(1, LE_MSTR, false); 507 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 508 BT_MBOX_PRINT(1, MSG_TYPE, false); 509 BT_MBOX_PRINT(1, SSN, true); 510 511 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 512 513 BT_MBOX_PRINT(2, SNIFF_ACT, false); 514 BT_MBOX_PRINT(2, PAG, false); 515 BT_MBOX_PRINT(2, INQUIRY, false); 516 BT_MBOX_PRINT(2, CONN, false); 517 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 518 BT_MBOX_PRINT(2, DISC, false); 519 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 520 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 521 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 522 BT_MBOX_PRINT(2, SCO_DURATION, true); 523 524 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 525 526 BT_MBOX_PRINT(3, SCO_STATE, false); 527 BT_MBOX_PRINT(3, SNIFF_STATE, false); 528 BT_MBOX_PRINT(3, A2DP_STATE, false); 529 BT_MBOX_PRINT(3, ACL_STATE, false); 530 BT_MBOX_PRINT(3, MSTR_STATE, false); 531 BT_MBOX_PRINT(3, OBX_STATE, false); 532 BT_MBOX_PRINT(3, OPEN_CON_2, false); 533 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 534 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 535 BT_MBOX_PRINT(3, INBAND_P, false); 536 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 537 BT_MBOX_PRINT(3, SSN_2, false); 538 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 539 540 return pos; 541 } 542 543 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 544 size_t count, loff_t *ppos) 545 { 546 struct iwl_mvm *mvm = file->private_data; 547 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 548 char *buf; 549 int ret, pos = 0, bufsz = sizeof(char) * 1024; 550 551 buf = kmalloc(bufsz, GFP_KERNEL); 552 if (!buf) 553 return -ENOMEM; 554 555 mutex_lock(&mvm->mutex); 556 557 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 558 559 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 560 notif->bt_ci_compliance); 561 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 562 le32_to_cpu(notif->primary_ch_lut)); 563 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 564 le32_to_cpu(notif->secondary_ch_lut)); 565 pos += scnprintf(buf + pos, 566 bufsz - pos, "bt_activity_grading = %d\n", 567 le32_to_cpu(notif->bt_activity_grading)); 568 pos += scnprintf(buf + pos, bufsz - pos, 569 "antenna isolation = %d CORUN LUT index = %d\n", 570 mvm->last_ant_isol, mvm->last_corun_lut); 571 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 572 notif->rrc_status & 0xF); 573 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 574 notif->ttc_status & 0xF); 575 576 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 577 IWL_MVM_BT_COEX_SYNC2SCO); 578 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 579 IWL_MVM_BT_COEX_MPLUT); 580 pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n", 581 IWL_MVM_BT_COEX_CORUNNING); 582 583 mutex_unlock(&mvm->mutex); 584 585 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 586 kfree(buf); 587 588 return ret; 589 } 590 #undef BT_MBOX_PRINT 591 592 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 593 size_t count, loff_t *ppos) 594 { 595 struct iwl_mvm *mvm = file->private_data; 596 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 597 char buf[256]; 598 int bufsz = sizeof(buf); 599 int pos = 0; 600 601 mutex_lock(&mvm->mutex); 602 603 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 604 pos += scnprintf(buf + pos, bufsz - pos, 605 "\tPrimary Channel Bitmap 0x%016llx\n", 606 le64_to_cpu(cmd->bt_primary_ci)); 607 pos += scnprintf(buf + pos, bufsz - pos, 608 "\tSecondary Channel Bitmap 0x%016llx\n", 609 le64_to_cpu(cmd->bt_secondary_ci)); 610 611 mutex_unlock(&mvm->mutex); 612 613 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 614 } 615 616 static ssize_t 617 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 618 size_t count, loff_t *ppos) 619 { 620 u32 bt_tx_prio; 621 622 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 623 return -EINVAL; 624 if (bt_tx_prio > 4) 625 return -EINVAL; 626 627 mvm->bt_tx_prio = bt_tx_prio; 628 629 return count; 630 } 631 632 static ssize_t 633 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 634 size_t count, loff_t *ppos) 635 { 636 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 637 [BT_FORCE_ANT_DIS] = "dis", 638 [BT_FORCE_ANT_AUTO] = "auto", 639 [BT_FORCE_ANT_BT] = "bt", 640 [BT_FORCE_ANT_WIFI] = "wifi", 641 }; 642 int ret, bt_force_ant_mode; 643 644 for (bt_force_ant_mode = 0; 645 bt_force_ant_mode < ARRAY_SIZE(modes_str); 646 bt_force_ant_mode++) { 647 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 648 break; 649 } 650 651 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 652 return -EINVAL; 653 654 ret = 0; 655 mutex_lock(&mvm->mutex); 656 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 657 goto out; 658 659 mvm->bt_force_ant_mode = bt_force_ant_mode; 660 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 661 modes_str[mvm->bt_force_ant_mode]); 662 663 if (iwl_mvm_firmware_running(mvm)) 664 ret = iwl_mvm_send_bt_init_conf(mvm); 665 else 666 ret = 0; 667 668 out: 669 mutex_unlock(&mvm->mutex); 670 return ret ?: count; 671 } 672 673 #define PRINT_STATS_LE32(_struct, _memb) \ 674 pos += scnprintf(buf + pos, bufsz - pos, \ 675 fmt_table, #_memb, \ 676 le32_to_cpu(_struct->_memb)) 677 678 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 679 char __user *user_buf, size_t count, 680 loff_t *ppos) 681 { 682 struct iwl_mvm *mvm = file->private_data; 683 static const char *fmt_table = "\t%-30s %10u\n"; 684 static const char *fmt_header = "%-32s\n"; 685 int pos = 0; 686 char *buf; 687 int ret; 688 size_t bufsz; 689 690 if (iwl_mvm_has_new_rx_stats_api(mvm)) 691 bufsz = ((sizeof(struct mvm_statistics_rx) / 692 sizeof(__le32)) * 43) + (4 * 33) + 1; 693 else 694 /* 43 = size of each data line; 33 = size of each header */ 695 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 696 sizeof(__le32)) * 43) + (4 * 33) + 1; 697 698 buf = kzalloc(bufsz, GFP_KERNEL); 699 if (!buf) 700 return -ENOMEM; 701 702 mutex_lock(&mvm->mutex); 703 704 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 705 "Statistics_Rx - OFDM"); 706 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 707 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 708 709 PRINT_STATS_LE32(ofdm, ina_cnt); 710 PRINT_STATS_LE32(ofdm, fina_cnt); 711 PRINT_STATS_LE32(ofdm, plcp_err); 712 PRINT_STATS_LE32(ofdm, crc32_err); 713 PRINT_STATS_LE32(ofdm, overrun_err); 714 PRINT_STATS_LE32(ofdm, early_overrun_err); 715 PRINT_STATS_LE32(ofdm, crc32_good); 716 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 717 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 718 PRINT_STATS_LE32(ofdm, sfd_timeout); 719 PRINT_STATS_LE32(ofdm, fina_timeout); 720 PRINT_STATS_LE32(ofdm, unresponded_rts); 721 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 722 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 723 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 724 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 725 PRINT_STATS_LE32(ofdm, dsp_self_kill); 726 PRINT_STATS_LE32(ofdm, mh_format_err); 727 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 728 PRINT_STATS_LE32(ofdm, reserved); 729 } else { 730 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 731 732 PRINT_STATS_LE32(ofdm, unresponded_rts); 733 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 734 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 735 PRINT_STATS_LE32(ofdm, dsp_self_kill); 736 PRINT_STATS_LE32(ofdm, reserved); 737 } 738 739 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 740 "Statistics_Rx - CCK"); 741 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 742 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 743 744 PRINT_STATS_LE32(cck, ina_cnt); 745 PRINT_STATS_LE32(cck, fina_cnt); 746 PRINT_STATS_LE32(cck, plcp_err); 747 PRINT_STATS_LE32(cck, crc32_err); 748 PRINT_STATS_LE32(cck, overrun_err); 749 PRINT_STATS_LE32(cck, early_overrun_err); 750 PRINT_STATS_LE32(cck, crc32_good); 751 PRINT_STATS_LE32(cck, false_alarm_cnt); 752 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 753 PRINT_STATS_LE32(cck, sfd_timeout); 754 PRINT_STATS_LE32(cck, fina_timeout); 755 PRINT_STATS_LE32(cck, unresponded_rts); 756 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 757 PRINT_STATS_LE32(cck, sent_ack_cnt); 758 PRINT_STATS_LE32(cck, sent_cts_cnt); 759 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 760 PRINT_STATS_LE32(cck, dsp_self_kill); 761 PRINT_STATS_LE32(cck, mh_format_err); 762 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 763 PRINT_STATS_LE32(cck, reserved); 764 } else { 765 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 766 767 PRINT_STATS_LE32(cck, unresponded_rts); 768 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 769 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 770 PRINT_STATS_LE32(cck, dsp_self_kill); 771 PRINT_STATS_LE32(cck, reserved); 772 } 773 774 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 775 "Statistics_Rx - GENERAL"); 776 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 777 struct mvm_statistics_rx_non_phy_v3 *general = 778 &mvm->rx_stats_v3.general; 779 780 PRINT_STATS_LE32(general, bogus_cts); 781 PRINT_STATS_LE32(general, bogus_ack); 782 PRINT_STATS_LE32(general, non_bssid_frames); 783 PRINT_STATS_LE32(general, filtered_frames); 784 PRINT_STATS_LE32(general, non_channel_beacons); 785 PRINT_STATS_LE32(general, channel_beacons); 786 PRINT_STATS_LE32(general, num_missed_bcon); 787 PRINT_STATS_LE32(general, adc_rx_saturation_time); 788 PRINT_STATS_LE32(general, ina_detection_search_time); 789 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 790 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 791 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 792 PRINT_STATS_LE32(general, interference_data_flag); 793 PRINT_STATS_LE32(general, channel_load); 794 PRINT_STATS_LE32(general, dsp_false_alarms); 795 PRINT_STATS_LE32(general, beacon_rssi_a); 796 PRINT_STATS_LE32(general, beacon_rssi_b); 797 PRINT_STATS_LE32(general, beacon_rssi_c); 798 PRINT_STATS_LE32(general, beacon_energy_a); 799 PRINT_STATS_LE32(general, beacon_energy_b); 800 PRINT_STATS_LE32(general, beacon_energy_c); 801 PRINT_STATS_LE32(general, num_bt_kills); 802 PRINT_STATS_LE32(general, mac_id); 803 PRINT_STATS_LE32(general, directed_data_mpdu); 804 } else { 805 struct mvm_statistics_rx_non_phy *general = 806 &mvm->rx_stats.general; 807 808 PRINT_STATS_LE32(general, bogus_cts); 809 PRINT_STATS_LE32(general, bogus_ack); 810 PRINT_STATS_LE32(general, non_channel_beacons); 811 PRINT_STATS_LE32(general, channel_beacons); 812 PRINT_STATS_LE32(general, num_missed_bcon); 813 PRINT_STATS_LE32(general, adc_rx_saturation_time); 814 PRINT_STATS_LE32(general, ina_detection_search_time); 815 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 816 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 817 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 818 PRINT_STATS_LE32(general, interference_data_flag); 819 PRINT_STATS_LE32(general, channel_load); 820 PRINT_STATS_LE32(general, beacon_rssi_a); 821 PRINT_STATS_LE32(general, beacon_rssi_b); 822 PRINT_STATS_LE32(general, beacon_rssi_c); 823 PRINT_STATS_LE32(general, beacon_energy_a); 824 PRINT_STATS_LE32(general, beacon_energy_b); 825 PRINT_STATS_LE32(general, beacon_energy_c); 826 PRINT_STATS_LE32(general, num_bt_kills); 827 PRINT_STATS_LE32(general, mac_id); 828 } 829 830 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 831 "Statistics_Rx - HT"); 832 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 833 struct mvm_statistics_rx_ht_phy_v1 *ht = 834 &mvm->rx_stats_v3.ofdm_ht; 835 836 PRINT_STATS_LE32(ht, plcp_err); 837 PRINT_STATS_LE32(ht, overrun_err); 838 PRINT_STATS_LE32(ht, early_overrun_err); 839 PRINT_STATS_LE32(ht, crc32_good); 840 PRINT_STATS_LE32(ht, crc32_err); 841 PRINT_STATS_LE32(ht, mh_format_err); 842 PRINT_STATS_LE32(ht, agg_crc32_good); 843 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 844 PRINT_STATS_LE32(ht, agg_cnt); 845 PRINT_STATS_LE32(ht, unsupport_mcs); 846 } else { 847 struct mvm_statistics_rx_ht_phy *ht = 848 &mvm->rx_stats.ofdm_ht; 849 850 PRINT_STATS_LE32(ht, mh_format_err); 851 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 852 PRINT_STATS_LE32(ht, agg_cnt); 853 PRINT_STATS_LE32(ht, unsupport_mcs); 854 } 855 856 mutex_unlock(&mvm->mutex); 857 858 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 859 kfree(buf); 860 861 return ret; 862 } 863 #undef PRINT_STAT_LE32 864 865 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 866 char __user *user_buf, size_t count, 867 loff_t *ppos, 868 struct iwl_mvm_frame_stats *stats) 869 { 870 char *buff, *pos, *endpos; 871 int idx, i; 872 int ret; 873 static const size_t bufsz = 1024; 874 875 buff = kmalloc(bufsz, GFP_KERNEL); 876 if (!buff) 877 return -ENOMEM; 878 879 spin_lock_bh(&mvm->drv_stats_lock); 880 881 pos = buff; 882 endpos = pos + bufsz; 883 884 pos += scnprintf(pos, endpos - pos, 885 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 886 stats->legacy_frames, 887 stats->ht_frames, 888 stats->vht_frames); 889 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 890 stats->bw_20_frames, 891 stats->bw_40_frames, 892 stats->bw_80_frames); 893 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 894 stats->ngi_frames, 895 stats->sgi_frames); 896 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 897 stats->siso_frames, 898 stats->mimo2_frames); 899 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 900 stats->fail_frames, 901 stats->success_frames); 902 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 903 stats->agg_frames); 904 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 905 stats->ampdu_count); 906 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 907 stats->ampdu_count > 0 ? 908 (stats->agg_frames / stats->ampdu_count) : 0); 909 910 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 911 912 idx = stats->last_frame_idx - 1; 913 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 914 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 915 if (stats->last_rates[idx] == 0) 916 continue; 917 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 918 (int)(ARRAY_SIZE(stats->last_rates) - i)); 919 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 920 } 921 spin_unlock_bh(&mvm->drv_stats_lock); 922 923 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 924 kfree(buff); 925 926 return ret; 927 } 928 929 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 930 char __user *user_buf, size_t count, 931 loff_t *ppos) 932 { 933 struct iwl_mvm *mvm = file->private_data; 934 935 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 936 &mvm->drv_rx_stats); 937 } 938 939 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 940 size_t count, loff_t *ppos) 941 { 942 int __maybe_unused ret; 943 944 if (!iwl_mvm_firmware_running(mvm)) 945 return -EIO; 946 947 mutex_lock(&mvm->mutex); 948 949 /* allow one more restart that we're provoking here */ 950 if (mvm->fw_restart >= 0) 951 mvm->fw_restart++; 952 953 /* take the return value to make compiler happy - it will fail anyway */ 954 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 955 956 mutex_unlock(&mvm->mutex); 957 958 return count; 959 } 960 961 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 962 size_t count, loff_t *ppos) 963 { 964 int ret; 965 966 if (!iwl_mvm_firmware_running(mvm)) 967 return -EIO; 968 969 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 970 if (ret) 971 return ret; 972 973 iwl_force_nmi(mvm->trans); 974 975 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 976 977 return count; 978 } 979 980 static ssize_t 981 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 982 char __user *user_buf, 983 size_t count, loff_t *ppos) 984 { 985 struct iwl_mvm *mvm = file->private_data; 986 int pos = 0; 987 char buf[32]; 988 const size_t bufsz = sizeof(buf); 989 990 /* print which antennas were set for the scan command by the user */ 991 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 992 if (mvm->scan_rx_ant & ANT_A) 993 pos += scnprintf(buf + pos, bufsz - pos, "A"); 994 if (mvm->scan_rx_ant & ANT_B) 995 pos += scnprintf(buf + pos, bufsz - pos, "B"); 996 if (mvm->scan_rx_ant & ANT_C) 997 pos += scnprintf(buf + pos, bufsz - pos, "C"); 998 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 999 1000 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1001 } 1002 1003 static ssize_t 1004 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1005 size_t count, loff_t *ppos) 1006 { 1007 u8 scan_rx_ant; 1008 1009 if (!iwl_mvm_firmware_running(mvm)) 1010 return -EIO; 1011 1012 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1013 return -EINVAL; 1014 if (scan_rx_ant > ANT_ABC) 1015 return -EINVAL; 1016 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1017 return -EINVAL; 1018 1019 if (mvm->scan_rx_ant != scan_rx_ant) { 1020 mvm->scan_rx_ant = scan_rx_ant; 1021 if (fw_has_capa(&mvm->fw->ucode_capa, 1022 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1023 iwl_mvm_config_scan(mvm); 1024 } 1025 1026 return count; 1027 } 1028 1029 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1030 char *buf, size_t count, 1031 loff_t *ppos) 1032 { 1033 struct iwl_rss_config_cmd cmd = { 1034 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1035 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1036 IWL_RSS_HASH_TYPE_IPV4_UDP | 1037 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1038 IWL_RSS_HASH_TYPE_IPV6_TCP | 1039 IWL_RSS_HASH_TYPE_IPV6_UDP | 1040 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1041 }; 1042 int ret, i, num_repeats, nbytes = count / 2; 1043 1044 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1045 if (ret) 1046 return ret; 1047 1048 /* 1049 * The input is the redirection table, partial or full. 1050 * Repeat the pattern if needed. 1051 * For example, input of 01020F will be repeated 42 times, 1052 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1053 * queues 3 - 14). 1054 */ 1055 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1056 for (i = 1; i < num_repeats; i++) 1057 memcpy(&cmd.indirection_table[i * nbytes], 1058 cmd.indirection_table, nbytes); 1059 /* handle cut in the middle pattern for the last places */ 1060 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1061 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1062 1063 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1064 1065 mutex_lock(&mvm->mutex); 1066 if (iwl_mvm_firmware_running(mvm)) 1067 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1068 sizeof(cmd), &cmd); 1069 else 1070 ret = 0; 1071 mutex_unlock(&mvm->mutex); 1072 1073 return ret ?: count; 1074 } 1075 1076 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1077 char *buf, size_t count, 1078 loff_t *ppos) 1079 { 1080 struct iwl_rx_cmd_buffer rxb = { 1081 ._rx_page_order = 0, 1082 .truesize = 0, /* not used */ 1083 ._offset = 0, 1084 }; 1085 struct iwl_rx_packet *pkt; 1086 struct iwl_rx_mpdu_desc *desc; 1087 int bin_len = count / 2; 1088 int ret = -EINVAL; 1089 1090 if (!iwl_mvm_firmware_running(mvm)) 1091 return -EIO; 1092 1093 /* supporting only 9000 descriptor */ 1094 if (!mvm->trans->cfg->mq_rx_supported) 1095 return -ENOTSUPP; 1096 1097 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1098 if (!rxb._page) 1099 return -ENOMEM; 1100 pkt = rxb_addr(&rxb); 1101 1102 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1103 if (ret) 1104 goto out; 1105 1106 /* avoid invalid memory access */ 1107 if (bin_len < sizeof(*pkt) + sizeof(*desc)) 1108 goto out; 1109 1110 /* check this is RX packet */ 1111 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1112 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1113 goto out; 1114 1115 /* check the length in metadata matches actual received length */ 1116 desc = (void *)pkt->data; 1117 if (le16_to_cpu(desc->mpdu_len) != 1118 (bin_len - sizeof(*desc) - sizeof(*pkt))) 1119 goto out; 1120 1121 local_bh_disable(); 1122 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1123 local_bh_enable(); 1124 ret = 0; 1125 1126 out: 1127 iwl_free_rxb(&rxb); 1128 1129 return ret ?: count; 1130 } 1131 1132 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1133 char __user *user_buf, 1134 size_t count, loff_t *ppos) 1135 { 1136 struct iwl_mvm *mvm = file->private_data; 1137 int conf; 1138 char buf[8]; 1139 const size_t bufsz = sizeof(buf); 1140 int pos = 0; 1141 1142 mutex_lock(&mvm->mutex); 1143 conf = mvm->fwrt.dump.conf; 1144 mutex_unlock(&mvm->mutex); 1145 1146 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1147 1148 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1149 } 1150 1151 /* 1152 * Enable / Disable continuous recording. 1153 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1154 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1155 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1156 */ 1157 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1158 char *buf, size_t count, 1159 loff_t *ppos) 1160 { 1161 struct iwl_trans *trans = mvm->trans; 1162 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 1163 struct iwl_continuous_record_cmd cont_rec = {}; 1164 int ret, rec_mode; 1165 1166 if (!iwl_mvm_firmware_running(mvm)) 1167 return -EIO; 1168 1169 if (!dest) 1170 return -EOPNOTSUPP; 1171 1172 if (dest->monitor_mode != SMEM_MODE || 1173 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1174 return -EOPNOTSUPP; 1175 1176 ret = kstrtoint(buf, 0, &rec_mode); 1177 if (ret) 1178 return ret; 1179 1180 cont_rec.record_mode.enable_recording = rec_mode ? 1181 cpu_to_le16(ENABLE_CONT_RECORDING) : 1182 cpu_to_le16(DISABLE_CONT_RECORDING); 1183 1184 mutex_lock(&mvm->mutex); 1185 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1186 sizeof(cont_rec), &cont_rec); 1187 mutex_unlock(&mvm->mutex); 1188 1189 return ret ?: count; 1190 } 1191 1192 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1193 char *buf, size_t count, 1194 loff_t *ppos) 1195 { 1196 unsigned int conf_id; 1197 int ret; 1198 1199 if (!iwl_mvm_firmware_running(mvm)) 1200 return -EIO; 1201 1202 ret = kstrtouint(buf, 0, &conf_id); 1203 if (ret) 1204 return ret; 1205 1206 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1207 return -EINVAL; 1208 1209 mutex_lock(&mvm->mutex); 1210 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1211 mutex_unlock(&mvm->mutex); 1212 1213 return ret ?: count; 1214 } 1215 1216 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1217 char *buf, size_t count, 1218 loff_t *ppos) 1219 { 1220 int ret; 1221 1222 if (!iwl_mvm_firmware_running(mvm)) 1223 return -EIO; 1224 1225 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1226 if (ret) 1227 return ret; 1228 if (count == 0) 1229 return 0; 1230 1231 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1232 (count - 1), NULL); 1233 1234 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1235 1236 return count; 1237 } 1238 1239 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1240 char *buf, size_t count, 1241 loff_t *ppos) 1242 { 1243 unsigned int max_amsdu_len; 1244 int ret; 1245 1246 ret = kstrtouint(buf, 0, &max_amsdu_len); 1247 if (ret) 1248 return ret; 1249 1250 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1251 return -EINVAL; 1252 mvm->max_amsdu_len = max_amsdu_len; 1253 1254 return count; 1255 } 1256 1257 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1258 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1259 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1260 char __user *user_buf, 1261 size_t count, loff_t *ppos) 1262 { 1263 struct iwl_mvm *mvm = file->private_data; 1264 struct iwl_bcast_filter_cmd cmd; 1265 const struct iwl_fw_bcast_filter *filter; 1266 char *buf; 1267 int bufsz = 1024; 1268 int i, j, pos = 0; 1269 ssize_t ret; 1270 1271 buf = kzalloc(bufsz, GFP_KERNEL); 1272 if (!buf) 1273 return -ENOMEM; 1274 1275 mutex_lock(&mvm->mutex); 1276 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1277 ADD_TEXT("None\n"); 1278 mutex_unlock(&mvm->mutex); 1279 goto out; 1280 } 1281 mutex_unlock(&mvm->mutex); 1282 1283 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1284 filter = &cmd.filters[i]; 1285 1286 ADD_TEXT("Filter [%d]:\n", i); 1287 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1288 ADD_TEXT("\tFrame Type: %s\n", 1289 filter->frame_type ? "IPv4" : "Generic"); 1290 1291 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1292 const struct iwl_fw_bcast_filter_attr *attr; 1293 1294 attr = &filter->attrs[j]; 1295 if (!attr->mask) 1296 break; 1297 1298 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1299 j, attr->offset, 1300 attr->offset_type ? "IP End" : 1301 "Payload Start", 1302 be32_to_cpu(attr->mask), 1303 be32_to_cpu(attr->val), 1304 le16_to_cpu(attr->reserved1)); 1305 } 1306 } 1307 out: 1308 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1309 kfree(buf); 1310 return ret; 1311 } 1312 1313 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1314 size_t count, loff_t *ppos) 1315 { 1316 int pos, next_pos; 1317 struct iwl_fw_bcast_filter filter = {}; 1318 struct iwl_bcast_filter_cmd cmd; 1319 u32 filter_id, attr_id, mask, value; 1320 int err = 0; 1321 1322 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1323 &filter.frame_type, &pos) != 3) 1324 return -EINVAL; 1325 1326 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1327 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1328 return -EINVAL; 1329 1330 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1331 attr_id++) { 1332 struct iwl_fw_bcast_filter_attr *attr = 1333 &filter.attrs[attr_id]; 1334 1335 if (pos >= count) 1336 break; 1337 1338 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1339 &attr->offset, &attr->offset_type, 1340 &mask, &value, &next_pos) != 4) 1341 return -EINVAL; 1342 1343 attr->mask = cpu_to_be32(mask); 1344 attr->val = cpu_to_be32(value); 1345 if (mask) 1346 filter.num_attrs++; 1347 1348 pos += next_pos; 1349 } 1350 1351 mutex_lock(&mvm->mutex); 1352 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1353 &filter, sizeof(filter)); 1354 1355 /* send updated bcast filtering configuration */ 1356 if (iwl_mvm_firmware_running(mvm) && 1357 mvm->dbgfs_bcast_filtering.override && 1358 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1359 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1360 sizeof(cmd), &cmd); 1361 mutex_unlock(&mvm->mutex); 1362 1363 return err ?: count; 1364 } 1365 1366 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1367 char __user *user_buf, 1368 size_t count, loff_t *ppos) 1369 { 1370 struct iwl_mvm *mvm = file->private_data; 1371 struct iwl_bcast_filter_cmd cmd; 1372 char *buf; 1373 int bufsz = 1024; 1374 int i, pos = 0; 1375 ssize_t ret; 1376 1377 buf = kzalloc(bufsz, GFP_KERNEL); 1378 if (!buf) 1379 return -ENOMEM; 1380 1381 mutex_lock(&mvm->mutex); 1382 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1383 ADD_TEXT("None\n"); 1384 mutex_unlock(&mvm->mutex); 1385 goto out; 1386 } 1387 mutex_unlock(&mvm->mutex); 1388 1389 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1390 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1391 1392 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1393 i, mac->default_discard, mac->attached_filters); 1394 } 1395 out: 1396 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1397 kfree(buf); 1398 return ret; 1399 } 1400 1401 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1402 char *buf, size_t count, 1403 loff_t *ppos) 1404 { 1405 struct iwl_bcast_filter_cmd cmd; 1406 struct iwl_fw_bcast_mac mac = {}; 1407 u32 mac_id, attached_filters; 1408 int err = 0; 1409 1410 if (!mvm->bcast_filters) 1411 return -ENOENT; 1412 1413 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1414 &attached_filters) != 3) 1415 return -EINVAL; 1416 1417 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1418 mac.default_discard > 1 || 1419 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1420 return -EINVAL; 1421 1422 mac.attached_filters = cpu_to_le16(attached_filters); 1423 1424 mutex_lock(&mvm->mutex); 1425 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1426 &mac, sizeof(mac)); 1427 1428 /* send updated bcast filtering configuration */ 1429 if (iwl_mvm_firmware_running(mvm) && 1430 mvm->dbgfs_bcast_filtering.override && 1431 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1432 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1433 sizeof(cmd), &cmd); 1434 mutex_unlock(&mvm->mutex); 1435 1436 return err ?: count; 1437 } 1438 #endif 1439 1440 #ifdef CONFIG_PM_SLEEP 1441 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1442 size_t count, loff_t *ppos) 1443 { 1444 int store; 1445 1446 if (sscanf(buf, "%d", &store) != 1) 1447 return -EINVAL; 1448 1449 mvm->store_d3_resume_sram = store; 1450 1451 return count; 1452 } 1453 1454 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1455 size_t count, loff_t *ppos) 1456 { 1457 struct iwl_mvm *mvm = file->private_data; 1458 const struct fw_img *img; 1459 int ofs, len, pos = 0; 1460 size_t bufsz, ret; 1461 char *buf; 1462 u8 *ptr = mvm->d3_resume_sram; 1463 1464 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1465 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1466 1467 bufsz = len * 4 + 256; 1468 buf = kzalloc(bufsz, GFP_KERNEL); 1469 if (!buf) 1470 return -ENOMEM; 1471 1472 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1473 mvm->store_d3_resume_sram ? "en" : "dis"); 1474 1475 if (ptr) { 1476 for (ofs = 0; ofs < len; ofs += 16) { 1477 pos += scnprintf(buf + pos, bufsz - pos, 1478 "0x%.4x %16ph\n", ofs, ptr + ofs); 1479 } 1480 } else { 1481 pos += scnprintf(buf + pos, bufsz - pos, 1482 "(no data captured)\n"); 1483 } 1484 1485 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1486 1487 kfree(buf); 1488 1489 return ret; 1490 } 1491 #endif 1492 1493 #define PRINT_MVM_REF(ref) do { \ 1494 if (mvm->refs[ref]) \ 1495 pos += scnprintf(buf + pos, bufsz - pos, \ 1496 "\t(0x%lx): %d %s\n", \ 1497 BIT(ref), mvm->refs[ref], #ref); \ 1498 } while (0) 1499 1500 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1501 char __user *user_buf, 1502 size_t count, loff_t *ppos) 1503 { 1504 struct iwl_mvm *mvm = file->private_data; 1505 int i, pos = 0; 1506 char buf[256]; 1507 const size_t bufsz = sizeof(buf); 1508 u32 refs = 0; 1509 1510 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1511 if (mvm->refs[i]) 1512 refs |= BIT(i); 1513 1514 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1515 refs); 1516 1517 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1518 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1519 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1520 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1521 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1522 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1523 PRINT_MVM_REF(IWL_MVM_REF_USER); 1524 PRINT_MVM_REF(IWL_MVM_REF_TX); 1525 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1526 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1527 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1528 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1529 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1530 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1531 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1532 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1533 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1534 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1535 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1536 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1537 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1538 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1539 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1540 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1541 PRINT_MVM_REF(IWL_MVM_REF_RX); 1542 1543 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1544 } 1545 1546 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1547 size_t count, loff_t *ppos) 1548 { 1549 unsigned long value; 1550 int ret; 1551 bool taken; 1552 1553 ret = kstrtoul(buf, 10, &value); 1554 if (ret < 0) 1555 return ret; 1556 1557 mutex_lock(&mvm->mutex); 1558 1559 taken = mvm->refs[IWL_MVM_REF_USER]; 1560 if (value == 1 && !taken) 1561 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1562 else if (value == 0 && taken) 1563 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1564 else 1565 ret = -EINVAL; 1566 1567 mutex_unlock(&mvm->mutex); 1568 1569 if (ret < 0) 1570 return ret; 1571 return count; 1572 } 1573 1574 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1575 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1576 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1577 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1578 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1579 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1580 &iwl_dbgfs_##name##_ops)) \ 1581 goto err; \ 1582 } while (0) 1583 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1584 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1585 1586 static ssize_t 1587 iwl_dbgfs_prph_reg_read(struct file *file, 1588 char __user *user_buf, 1589 size_t count, loff_t *ppos) 1590 { 1591 struct iwl_mvm *mvm = file->private_data; 1592 int pos = 0; 1593 char buf[32]; 1594 const size_t bufsz = sizeof(buf); 1595 int ret; 1596 1597 if (!mvm->dbgfs_prph_reg_addr) 1598 return -EINVAL; 1599 1600 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1601 if (ret) 1602 return ret; 1603 1604 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1605 mvm->dbgfs_prph_reg_addr, 1606 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1607 1608 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1609 1610 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1611 } 1612 1613 static ssize_t 1614 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1615 size_t count, loff_t *ppos) 1616 { 1617 u8 args; 1618 u32 value; 1619 int ret; 1620 1621 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1622 /* if we only want to set the reg address - nothing more to do */ 1623 if (args == 1) 1624 goto out; 1625 1626 /* otherwise, make sure we have both address and value */ 1627 if (args != 2) 1628 return -EINVAL; 1629 1630 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1631 if (ret) 1632 return ret; 1633 1634 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1635 1636 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1637 out: 1638 return count; 1639 } 1640 1641 static ssize_t 1642 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1643 size_t count, loff_t *ppos) 1644 { 1645 int ret; 1646 1647 if (!iwl_mvm_firmware_running(mvm)) 1648 return -EIO; 1649 1650 mutex_lock(&mvm->mutex); 1651 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1652 mutex_unlock(&mvm->mutex); 1653 1654 return ret ?: count; 1655 } 1656 1657 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1658 1659 /* Device wide debugfs entries */ 1660 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1661 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1662 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1663 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1664 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1665 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1666 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1667 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1668 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1669 MVM_DEBUGFS_READ_FILE_OPS(stations); 1670 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1671 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1672 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1673 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1674 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1675 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1676 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1677 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1678 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1679 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1680 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1681 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1682 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1683 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1684 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1685 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1686 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1687 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1688 1689 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1690 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1691 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1692 #endif 1693 1694 #ifdef CONFIG_PM_SLEEP 1695 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1696 #endif 1697 #ifdef CONFIG_ACPI 1698 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1699 #endif 1700 1701 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1702 size_t count, loff_t *ppos) 1703 { 1704 struct iwl_mvm *mvm = file->private_data; 1705 struct iwl_dbg_mem_access_cmd cmd = {}; 1706 struct iwl_dbg_mem_access_rsp *rsp; 1707 struct iwl_host_cmd hcmd = { 1708 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1709 .data = { &cmd, }, 1710 .len = { sizeof(cmd) }, 1711 }; 1712 size_t delta; 1713 ssize_t ret, len; 1714 1715 if (!iwl_mvm_firmware_running(mvm)) 1716 return -EIO; 1717 1718 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1719 DEBUG_GROUP, 0); 1720 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1721 1722 /* Take care of alignment of both the position and the length */ 1723 delta = *ppos & 0x3; 1724 cmd.addr = cpu_to_le32(*ppos - delta); 1725 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1726 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1727 1728 mutex_lock(&mvm->mutex); 1729 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1730 mutex_unlock(&mvm->mutex); 1731 1732 if (ret < 0) 1733 return ret; 1734 1735 rsp = (void *)hcmd.resp_pkt->data; 1736 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1737 ret = -ENXIO; 1738 goto out; 1739 } 1740 1741 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1742 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1743 len = min(len - delta, count); 1744 if (len < 0) { 1745 ret = -EFAULT; 1746 goto out; 1747 } 1748 1749 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1750 *ppos += ret; 1751 1752 out: 1753 iwl_free_resp(&hcmd); 1754 return ret; 1755 } 1756 1757 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1758 const char __user *user_buf, size_t count, 1759 loff_t *ppos) 1760 { 1761 struct iwl_mvm *mvm = file->private_data; 1762 struct iwl_dbg_mem_access_cmd *cmd; 1763 struct iwl_dbg_mem_access_rsp *rsp; 1764 struct iwl_host_cmd hcmd = {}; 1765 size_t cmd_size; 1766 size_t data_size; 1767 u32 op, len; 1768 ssize_t ret; 1769 1770 if (!iwl_mvm_firmware_running(mvm)) 1771 return -EIO; 1772 1773 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1774 DEBUG_GROUP, 0); 1775 1776 if (*ppos & 0x3 || count < 4) { 1777 op = DEBUG_MEM_OP_WRITE_BYTES; 1778 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1779 data_size = len; 1780 } else { 1781 op = DEBUG_MEM_OP_WRITE; 1782 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1783 data_size = len << 2; 1784 } 1785 1786 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1787 cmd = kzalloc(cmd_size, GFP_KERNEL); 1788 if (!cmd) 1789 return -ENOMEM; 1790 1791 cmd->op = cpu_to_le32(op); 1792 cmd->len = cpu_to_le32(len); 1793 cmd->addr = cpu_to_le32(*ppos); 1794 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1795 kfree(cmd); 1796 return -EFAULT; 1797 } 1798 1799 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1800 hcmd.data[0] = (void *)cmd; 1801 hcmd.len[0] = cmd_size; 1802 1803 mutex_lock(&mvm->mutex); 1804 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1805 mutex_unlock(&mvm->mutex); 1806 1807 kfree(cmd); 1808 1809 if (ret < 0) 1810 return ret; 1811 1812 rsp = (void *)hcmd.resp_pkt->data; 1813 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1814 ret = -ENXIO; 1815 goto out; 1816 } 1817 1818 ret = data_size; 1819 *ppos += ret; 1820 1821 out: 1822 iwl_free_resp(&hcmd); 1823 return ret; 1824 } 1825 1826 static const struct file_operations iwl_dbgfs_mem_ops = { 1827 .read = iwl_dbgfs_mem_read, 1828 .write = iwl_dbgfs_mem_write, 1829 .open = simple_open, 1830 .llseek = default_llseek, 1831 }; 1832 1833 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1834 { 1835 struct dentry *bcast_dir __maybe_unused; 1836 char buf[100]; 1837 1838 spin_lock_init(&mvm->drv_stats_lock); 1839 1840 mvm->debugfs_dir = dbgfs_dir; 1841 1842 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1843 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1844 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1845 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1846 S_IWUSR | S_IRUSR); 1847 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1848 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); 1849 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); 1850 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); 1851 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1852 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1853 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1854 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1855 S_IRUSR | S_IWUSR); 1856 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1857 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1858 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1859 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1860 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1861 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1862 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1863 S_IWUSR | S_IRUSR); 1864 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1865 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1866 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1867 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1868 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR); 1869 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1870 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1871 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); 1872 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); 1873 #ifdef CONFIG_ACPI 1874 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR); 1875 #endif 1876 1877 if (!debugfs_create_bool("enable_scan_iteration_notif", 1878 S_IRUSR | S_IWUSR, 1879 mvm->debugfs_dir, 1880 &mvm->scan_iter_notif_enabled)) 1881 goto err; 1882 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR, 1883 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 1884 goto err; 1885 1886 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1887 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1888 bcast_dir = debugfs_create_dir("bcast_filtering", 1889 mvm->debugfs_dir); 1890 if (!bcast_dir) 1891 goto err; 1892 1893 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1894 bcast_dir, 1895 &mvm->dbgfs_bcast_filtering.override)) 1896 goto err; 1897 1898 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1899 bcast_dir, S_IWUSR | S_IRUSR); 1900 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1901 bcast_dir, S_IWUSR | S_IRUSR); 1902 } 1903 #endif 1904 1905 #ifdef CONFIG_PM_SLEEP 1906 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1907 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1908 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1909 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1910 goto err; 1911 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 1912 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 1913 goto err; 1914 #endif 1915 1916 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 1917 mvm->debugfs_dir, &mvm->ps_disabled)) 1918 goto err; 1919 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 1920 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 1921 goto err; 1922 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 1923 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 1924 goto err; 1925 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 1926 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 1927 goto err; 1928 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 1929 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 1930 goto err; 1931 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 1932 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 1933 goto err; 1934 1935 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm, 1936 &iwl_dbgfs_mem_ops); 1937 1938 /* 1939 * Create a symlink with mac80211. It will be removed when mac80211 1940 * exists (before the opmode exists which removes the target.) 1941 */ 1942 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 1943 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 1944 goto err; 1945 1946 return 0; 1947 err: 1948 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 1949 return -ENOMEM; 1950 } 1951