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