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 static 473 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 474 int pos, int bufsz) 475 { 476 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 477 478 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 479 BT_MBOX_PRINT(0, LE_PROF1, false); 480 BT_MBOX_PRINT(0, LE_PROF2, false); 481 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 482 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 483 BT_MBOX_PRINT(0, INBAND_S, false); 484 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 485 BT_MBOX_PRINT(0, LE_SCAN, false); 486 BT_MBOX_PRINT(0, LE_ADV, false); 487 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 488 BT_MBOX_PRINT(0, OPEN_CON_1, true); 489 490 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 491 492 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 493 BT_MBOX_PRINT(1, IP_SR, false); 494 BT_MBOX_PRINT(1, LE_MSTR, false); 495 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 496 BT_MBOX_PRINT(1, MSG_TYPE, false); 497 BT_MBOX_PRINT(1, SSN, true); 498 499 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 500 501 BT_MBOX_PRINT(2, SNIFF_ACT, false); 502 BT_MBOX_PRINT(2, PAG, false); 503 BT_MBOX_PRINT(2, INQUIRY, false); 504 BT_MBOX_PRINT(2, CONN, false); 505 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 506 BT_MBOX_PRINT(2, DISC, false); 507 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 508 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 509 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 510 BT_MBOX_PRINT(2, SCO_DURATION, true); 511 512 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 513 514 BT_MBOX_PRINT(3, SCO_STATE, false); 515 BT_MBOX_PRINT(3, SNIFF_STATE, false); 516 BT_MBOX_PRINT(3, A2DP_STATE, false); 517 BT_MBOX_PRINT(3, A2DP_SRC, false); 518 BT_MBOX_PRINT(3, ACL_STATE, false); 519 BT_MBOX_PRINT(3, MSTR_STATE, false); 520 BT_MBOX_PRINT(3, OBX_STATE, false); 521 BT_MBOX_PRINT(3, OPEN_CON_2, false); 522 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 523 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 524 BT_MBOX_PRINT(3, INBAND_P, false); 525 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 526 BT_MBOX_PRINT(3, SSN_2, false); 527 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 528 529 return pos; 530 } 531 532 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 533 size_t count, loff_t *ppos) 534 { 535 struct iwl_mvm *mvm = file->private_data; 536 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 537 char *buf; 538 int ret, pos = 0, bufsz = sizeof(char) * 1024; 539 540 buf = kmalloc(bufsz, GFP_KERNEL); 541 if (!buf) 542 return -ENOMEM; 543 544 mutex_lock(&mvm->mutex); 545 546 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 547 548 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 549 notif->bt_ci_compliance); 550 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 551 le32_to_cpu(notif->primary_ch_lut)); 552 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 553 le32_to_cpu(notif->secondary_ch_lut)); 554 pos += scnprintf(buf + pos, 555 bufsz - pos, "bt_activity_grading = %d\n", 556 le32_to_cpu(notif->bt_activity_grading)); 557 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 558 notif->rrc_status & 0xF); 559 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 560 notif->ttc_status & 0xF); 561 562 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 563 IWL_MVM_BT_COEX_SYNC2SCO); 564 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 565 IWL_MVM_BT_COEX_MPLUT); 566 567 mutex_unlock(&mvm->mutex); 568 569 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 570 kfree(buf); 571 572 return ret; 573 } 574 #undef BT_MBOX_PRINT 575 576 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 577 size_t count, loff_t *ppos) 578 { 579 struct iwl_mvm *mvm = file->private_data; 580 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 581 char buf[256]; 582 int bufsz = sizeof(buf); 583 int pos = 0; 584 585 mutex_lock(&mvm->mutex); 586 587 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 588 pos += scnprintf(buf + pos, bufsz - pos, 589 "\tPrimary Channel Bitmap 0x%016llx\n", 590 le64_to_cpu(cmd->bt_primary_ci)); 591 pos += scnprintf(buf + pos, bufsz - pos, 592 "\tSecondary Channel Bitmap 0x%016llx\n", 593 le64_to_cpu(cmd->bt_secondary_ci)); 594 595 mutex_unlock(&mvm->mutex); 596 597 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 598 } 599 600 static ssize_t 601 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 602 size_t count, loff_t *ppos) 603 { 604 u32 bt_tx_prio; 605 606 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 607 return -EINVAL; 608 if (bt_tx_prio > 4) 609 return -EINVAL; 610 611 mvm->bt_tx_prio = bt_tx_prio; 612 613 return count; 614 } 615 616 static ssize_t 617 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 618 size_t count, loff_t *ppos) 619 { 620 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 621 [BT_FORCE_ANT_DIS] = "dis", 622 [BT_FORCE_ANT_AUTO] = "auto", 623 [BT_FORCE_ANT_BT] = "bt", 624 [BT_FORCE_ANT_WIFI] = "wifi", 625 }; 626 int ret, bt_force_ant_mode; 627 628 for (bt_force_ant_mode = 0; 629 bt_force_ant_mode < ARRAY_SIZE(modes_str); 630 bt_force_ant_mode++) { 631 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 632 break; 633 } 634 635 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 636 return -EINVAL; 637 638 ret = 0; 639 mutex_lock(&mvm->mutex); 640 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 641 goto out; 642 643 mvm->bt_force_ant_mode = bt_force_ant_mode; 644 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 645 modes_str[mvm->bt_force_ant_mode]); 646 647 if (iwl_mvm_firmware_running(mvm)) 648 ret = iwl_mvm_send_bt_init_conf(mvm); 649 else 650 ret = 0; 651 652 out: 653 mutex_unlock(&mvm->mutex); 654 return ret ?: count; 655 } 656 657 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 658 size_t count, loff_t *ppos) 659 { 660 struct iwl_mvm *mvm = file->private_data; 661 char *buff, *pos, *endpos; 662 static const size_t bufsz = 1024; 663 int ret; 664 665 buff = kmalloc(bufsz, GFP_KERNEL); 666 if (!buff) 667 return -ENOMEM; 668 669 pos = buff; 670 endpos = pos + bufsz; 671 672 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 673 mvm->trans->cfg->fw_name_pre); 674 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 675 mvm->fwrt.fw->human_readable); 676 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 677 mvm->fwrt.trans->cfg->name); 678 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 679 mvm->fwrt.dev->bus->name); 680 681 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 682 kfree(buff); 683 684 return ret; 685 } 686 687 #define PRINT_STATS_LE32(_struct, _memb) \ 688 pos += scnprintf(buf + pos, bufsz - pos, \ 689 fmt_table, #_memb, \ 690 le32_to_cpu(_struct->_memb)) 691 692 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 693 char __user *user_buf, size_t count, 694 loff_t *ppos) 695 { 696 struct iwl_mvm *mvm = file->private_data; 697 static const char *fmt_table = "\t%-30s %10u\n"; 698 static const char *fmt_header = "%-32s\n"; 699 int pos = 0; 700 char *buf; 701 int ret; 702 size_t bufsz; 703 704 if (iwl_mvm_has_new_rx_stats_api(mvm)) 705 bufsz = ((sizeof(struct mvm_statistics_rx) / 706 sizeof(__le32)) * 43) + (4 * 33) + 1; 707 else 708 /* 43 = size of each data line; 33 = size of each header */ 709 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 710 sizeof(__le32)) * 43) + (4 * 33) + 1; 711 712 buf = kzalloc(bufsz, GFP_KERNEL); 713 if (!buf) 714 return -ENOMEM; 715 716 mutex_lock(&mvm->mutex); 717 718 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 719 "Statistics_Rx - OFDM"); 720 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 721 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 722 723 PRINT_STATS_LE32(ofdm, ina_cnt); 724 PRINT_STATS_LE32(ofdm, fina_cnt); 725 PRINT_STATS_LE32(ofdm, plcp_err); 726 PRINT_STATS_LE32(ofdm, crc32_err); 727 PRINT_STATS_LE32(ofdm, overrun_err); 728 PRINT_STATS_LE32(ofdm, early_overrun_err); 729 PRINT_STATS_LE32(ofdm, crc32_good); 730 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 731 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 732 PRINT_STATS_LE32(ofdm, sfd_timeout); 733 PRINT_STATS_LE32(ofdm, fina_timeout); 734 PRINT_STATS_LE32(ofdm, unresponded_rts); 735 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 736 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 737 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 738 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 739 PRINT_STATS_LE32(ofdm, dsp_self_kill); 740 PRINT_STATS_LE32(ofdm, mh_format_err); 741 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 742 PRINT_STATS_LE32(ofdm, reserved); 743 } else { 744 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 745 746 PRINT_STATS_LE32(ofdm, unresponded_rts); 747 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 748 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 749 PRINT_STATS_LE32(ofdm, dsp_self_kill); 750 PRINT_STATS_LE32(ofdm, reserved); 751 } 752 753 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 754 "Statistics_Rx - CCK"); 755 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 756 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 757 758 PRINT_STATS_LE32(cck, ina_cnt); 759 PRINT_STATS_LE32(cck, fina_cnt); 760 PRINT_STATS_LE32(cck, plcp_err); 761 PRINT_STATS_LE32(cck, crc32_err); 762 PRINT_STATS_LE32(cck, overrun_err); 763 PRINT_STATS_LE32(cck, early_overrun_err); 764 PRINT_STATS_LE32(cck, crc32_good); 765 PRINT_STATS_LE32(cck, false_alarm_cnt); 766 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 767 PRINT_STATS_LE32(cck, sfd_timeout); 768 PRINT_STATS_LE32(cck, fina_timeout); 769 PRINT_STATS_LE32(cck, unresponded_rts); 770 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 771 PRINT_STATS_LE32(cck, sent_ack_cnt); 772 PRINT_STATS_LE32(cck, sent_cts_cnt); 773 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 774 PRINT_STATS_LE32(cck, dsp_self_kill); 775 PRINT_STATS_LE32(cck, mh_format_err); 776 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 777 PRINT_STATS_LE32(cck, reserved); 778 } else { 779 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 780 781 PRINT_STATS_LE32(cck, unresponded_rts); 782 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 783 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 784 PRINT_STATS_LE32(cck, dsp_self_kill); 785 PRINT_STATS_LE32(cck, reserved); 786 } 787 788 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 789 "Statistics_Rx - GENERAL"); 790 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 791 struct mvm_statistics_rx_non_phy_v3 *general = 792 &mvm->rx_stats_v3.general; 793 794 PRINT_STATS_LE32(general, bogus_cts); 795 PRINT_STATS_LE32(general, bogus_ack); 796 PRINT_STATS_LE32(general, non_bssid_frames); 797 PRINT_STATS_LE32(general, filtered_frames); 798 PRINT_STATS_LE32(general, non_channel_beacons); 799 PRINT_STATS_LE32(general, channel_beacons); 800 PRINT_STATS_LE32(general, num_missed_bcon); 801 PRINT_STATS_LE32(general, adc_rx_saturation_time); 802 PRINT_STATS_LE32(general, ina_detection_search_time); 803 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 804 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 805 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 806 PRINT_STATS_LE32(general, interference_data_flag); 807 PRINT_STATS_LE32(general, channel_load); 808 PRINT_STATS_LE32(general, dsp_false_alarms); 809 PRINT_STATS_LE32(general, beacon_rssi_a); 810 PRINT_STATS_LE32(general, beacon_rssi_b); 811 PRINT_STATS_LE32(general, beacon_rssi_c); 812 PRINT_STATS_LE32(general, beacon_energy_a); 813 PRINT_STATS_LE32(general, beacon_energy_b); 814 PRINT_STATS_LE32(general, beacon_energy_c); 815 PRINT_STATS_LE32(general, num_bt_kills); 816 PRINT_STATS_LE32(general, mac_id); 817 PRINT_STATS_LE32(general, directed_data_mpdu); 818 } else { 819 struct mvm_statistics_rx_non_phy *general = 820 &mvm->rx_stats.general; 821 822 PRINT_STATS_LE32(general, bogus_cts); 823 PRINT_STATS_LE32(general, bogus_ack); 824 PRINT_STATS_LE32(general, non_channel_beacons); 825 PRINT_STATS_LE32(general, channel_beacons); 826 PRINT_STATS_LE32(general, num_missed_bcon); 827 PRINT_STATS_LE32(general, adc_rx_saturation_time); 828 PRINT_STATS_LE32(general, ina_detection_search_time); 829 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 830 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 831 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 832 PRINT_STATS_LE32(general, interference_data_flag); 833 PRINT_STATS_LE32(general, channel_load); 834 PRINT_STATS_LE32(general, beacon_rssi_a); 835 PRINT_STATS_LE32(general, beacon_rssi_b); 836 PRINT_STATS_LE32(general, beacon_rssi_c); 837 PRINT_STATS_LE32(general, beacon_energy_a); 838 PRINT_STATS_LE32(general, beacon_energy_b); 839 PRINT_STATS_LE32(general, beacon_energy_c); 840 PRINT_STATS_LE32(general, num_bt_kills); 841 PRINT_STATS_LE32(general, mac_id); 842 } 843 844 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 845 "Statistics_Rx - HT"); 846 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 847 struct mvm_statistics_rx_ht_phy_v1 *ht = 848 &mvm->rx_stats_v3.ofdm_ht; 849 850 PRINT_STATS_LE32(ht, plcp_err); 851 PRINT_STATS_LE32(ht, overrun_err); 852 PRINT_STATS_LE32(ht, early_overrun_err); 853 PRINT_STATS_LE32(ht, crc32_good); 854 PRINT_STATS_LE32(ht, crc32_err); 855 PRINT_STATS_LE32(ht, mh_format_err); 856 PRINT_STATS_LE32(ht, agg_crc32_good); 857 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 858 PRINT_STATS_LE32(ht, agg_cnt); 859 PRINT_STATS_LE32(ht, unsupport_mcs); 860 } else { 861 struct mvm_statistics_rx_ht_phy *ht = 862 &mvm->rx_stats.ofdm_ht; 863 864 PRINT_STATS_LE32(ht, mh_format_err); 865 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 866 PRINT_STATS_LE32(ht, agg_cnt); 867 PRINT_STATS_LE32(ht, unsupport_mcs); 868 } 869 870 mutex_unlock(&mvm->mutex); 871 872 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 873 kfree(buf); 874 875 return ret; 876 } 877 #undef PRINT_STAT_LE32 878 879 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 880 char __user *user_buf, size_t count, 881 loff_t *ppos, 882 struct iwl_mvm_frame_stats *stats) 883 { 884 char *buff, *pos, *endpos; 885 int idx, i; 886 int ret; 887 static const size_t bufsz = 1024; 888 889 buff = kmalloc(bufsz, GFP_KERNEL); 890 if (!buff) 891 return -ENOMEM; 892 893 spin_lock_bh(&mvm->drv_stats_lock); 894 895 pos = buff; 896 endpos = pos + bufsz; 897 898 pos += scnprintf(pos, endpos - pos, 899 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 900 stats->legacy_frames, 901 stats->ht_frames, 902 stats->vht_frames); 903 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 904 stats->bw_20_frames, 905 stats->bw_40_frames, 906 stats->bw_80_frames); 907 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 908 stats->ngi_frames, 909 stats->sgi_frames); 910 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 911 stats->siso_frames, 912 stats->mimo2_frames); 913 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 914 stats->fail_frames, 915 stats->success_frames); 916 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 917 stats->agg_frames); 918 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 919 stats->ampdu_count); 920 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 921 stats->ampdu_count > 0 ? 922 (stats->agg_frames / stats->ampdu_count) : 0); 923 924 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 925 926 idx = stats->last_frame_idx - 1; 927 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 928 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 929 if (stats->last_rates[idx] == 0) 930 continue; 931 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 932 (int)(ARRAY_SIZE(stats->last_rates) - i)); 933 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 934 } 935 spin_unlock_bh(&mvm->drv_stats_lock); 936 937 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 938 kfree(buff); 939 940 return ret; 941 } 942 943 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 944 char __user *user_buf, size_t count, 945 loff_t *ppos) 946 { 947 struct iwl_mvm *mvm = file->private_data; 948 949 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 950 &mvm->drv_rx_stats); 951 } 952 953 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 954 size_t count, loff_t *ppos) 955 { 956 int __maybe_unused ret; 957 958 if (!iwl_mvm_firmware_running(mvm)) 959 return -EIO; 960 961 mutex_lock(&mvm->mutex); 962 963 /* allow one more restart that we're provoking here */ 964 if (mvm->fw_restart >= 0) 965 mvm->fw_restart++; 966 967 /* take the return value to make compiler happy - it will fail anyway */ 968 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 969 970 mutex_unlock(&mvm->mutex); 971 972 return count; 973 } 974 975 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 976 size_t count, loff_t *ppos) 977 { 978 int ret; 979 980 if (!iwl_mvm_firmware_running(mvm)) 981 return -EIO; 982 983 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 984 if (ret) 985 return ret; 986 987 iwl_force_nmi(mvm->trans); 988 989 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 990 991 return count; 992 } 993 994 static ssize_t 995 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 996 char __user *user_buf, 997 size_t count, loff_t *ppos) 998 { 999 struct iwl_mvm *mvm = file->private_data; 1000 int pos = 0; 1001 char buf[32]; 1002 const size_t bufsz = sizeof(buf); 1003 1004 /* print which antennas were set for the scan command by the user */ 1005 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1006 if (mvm->scan_rx_ant & ANT_A) 1007 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1008 if (mvm->scan_rx_ant & ANT_B) 1009 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1010 if (mvm->scan_rx_ant & ANT_C) 1011 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1012 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1013 1014 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1015 } 1016 1017 static ssize_t 1018 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1019 size_t count, loff_t *ppos) 1020 { 1021 u8 scan_rx_ant; 1022 1023 if (!iwl_mvm_firmware_running(mvm)) 1024 return -EIO; 1025 1026 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1027 return -EINVAL; 1028 if (scan_rx_ant > ANT_ABC) 1029 return -EINVAL; 1030 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1031 return -EINVAL; 1032 1033 if (mvm->scan_rx_ant != scan_rx_ant) { 1034 mvm->scan_rx_ant = scan_rx_ant; 1035 if (fw_has_capa(&mvm->fw->ucode_capa, 1036 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1037 iwl_mvm_config_scan(mvm); 1038 } 1039 1040 return count; 1041 } 1042 1043 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1044 char *buf, size_t count, 1045 loff_t *ppos) 1046 { 1047 struct iwl_rss_config_cmd cmd = { 1048 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1049 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1050 IWL_RSS_HASH_TYPE_IPV4_UDP | 1051 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1052 IWL_RSS_HASH_TYPE_IPV6_TCP | 1053 IWL_RSS_HASH_TYPE_IPV6_UDP | 1054 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1055 }; 1056 int ret, i, num_repeats, nbytes = count / 2; 1057 1058 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1059 if (ret) 1060 return ret; 1061 1062 /* 1063 * The input is the redirection table, partial or full. 1064 * Repeat the pattern if needed. 1065 * For example, input of 01020F will be repeated 42 times, 1066 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1067 * queues 3 - 14). 1068 */ 1069 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1070 for (i = 1; i < num_repeats; i++) 1071 memcpy(&cmd.indirection_table[i * nbytes], 1072 cmd.indirection_table, nbytes); 1073 /* handle cut in the middle pattern for the last places */ 1074 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1075 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1076 1077 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1078 1079 mutex_lock(&mvm->mutex); 1080 if (iwl_mvm_firmware_running(mvm)) 1081 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1082 sizeof(cmd), &cmd); 1083 else 1084 ret = 0; 1085 mutex_unlock(&mvm->mutex); 1086 1087 return ret ?: count; 1088 } 1089 1090 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1091 char *buf, size_t count, 1092 loff_t *ppos) 1093 { 1094 struct iwl_rx_cmd_buffer rxb = { 1095 ._rx_page_order = 0, 1096 .truesize = 0, /* not used */ 1097 ._offset = 0, 1098 }; 1099 struct iwl_rx_packet *pkt; 1100 struct iwl_rx_mpdu_desc *desc; 1101 int bin_len = count / 2; 1102 int ret = -EINVAL; 1103 1104 if (!iwl_mvm_firmware_running(mvm)) 1105 return -EIO; 1106 1107 /* supporting only 9000 descriptor */ 1108 if (!mvm->trans->cfg->mq_rx_supported) 1109 return -ENOTSUPP; 1110 1111 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1112 if (!rxb._page) 1113 return -ENOMEM; 1114 pkt = rxb_addr(&rxb); 1115 1116 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1117 if (ret) 1118 goto out; 1119 1120 /* avoid invalid memory access */ 1121 if (bin_len < sizeof(*pkt) + sizeof(*desc)) 1122 goto out; 1123 1124 /* check this is RX packet */ 1125 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1126 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1127 goto out; 1128 1129 /* check the length in metadata matches actual received length */ 1130 desc = (void *)pkt->data; 1131 if (le16_to_cpu(desc->mpdu_len) != 1132 (bin_len - sizeof(*desc) - sizeof(*pkt))) 1133 goto out; 1134 1135 local_bh_disable(); 1136 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1137 local_bh_enable(); 1138 ret = 0; 1139 1140 out: 1141 iwl_free_rxb(&rxb); 1142 1143 return ret ?: count; 1144 } 1145 1146 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1147 char __user *user_buf, 1148 size_t count, loff_t *ppos) 1149 { 1150 struct iwl_mvm *mvm = file->private_data; 1151 int conf; 1152 char buf[8]; 1153 const size_t bufsz = sizeof(buf); 1154 int pos = 0; 1155 1156 mutex_lock(&mvm->mutex); 1157 conf = mvm->fwrt.dump.conf; 1158 mutex_unlock(&mvm->mutex); 1159 1160 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1161 1162 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1163 } 1164 1165 /* 1166 * Enable / Disable continuous recording. 1167 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1168 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1169 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1170 */ 1171 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1172 char *buf, size_t count, 1173 loff_t *ppos) 1174 { 1175 struct iwl_trans *trans = mvm->trans; 1176 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 1177 struct iwl_continuous_record_cmd cont_rec = {}; 1178 int ret, rec_mode; 1179 1180 if (!iwl_mvm_firmware_running(mvm)) 1181 return -EIO; 1182 1183 if (!dest) 1184 return -EOPNOTSUPP; 1185 1186 if (dest->monitor_mode != SMEM_MODE || 1187 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1188 return -EOPNOTSUPP; 1189 1190 ret = kstrtoint(buf, 0, &rec_mode); 1191 if (ret) 1192 return ret; 1193 1194 cont_rec.record_mode.enable_recording = rec_mode ? 1195 cpu_to_le16(ENABLE_CONT_RECORDING) : 1196 cpu_to_le16(DISABLE_CONT_RECORDING); 1197 1198 mutex_lock(&mvm->mutex); 1199 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1200 sizeof(cont_rec), &cont_rec); 1201 mutex_unlock(&mvm->mutex); 1202 1203 return ret ?: count; 1204 } 1205 1206 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1207 char *buf, size_t count, 1208 loff_t *ppos) 1209 { 1210 unsigned int conf_id; 1211 int ret; 1212 1213 if (!iwl_mvm_firmware_running(mvm)) 1214 return -EIO; 1215 1216 ret = kstrtouint(buf, 0, &conf_id); 1217 if (ret) 1218 return ret; 1219 1220 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1221 return -EINVAL; 1222 1223 mutex_lock(&mvm->mutex); 1224 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1225 mutex_unlock(&mvm->mutex); 1226 1227 return ret ?: count; 1228 } 1229 1230 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1231 char *buf, size_t count, 1232 loff_t *ppos) 1233 { 1234 int ret; 1235 1236 if (!iwl_mvm_firmware_running(mvm)) 1237 return -EIO; 1238 1239 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1240 if (ret) 1241 return ret; 1242 if (count == 0) 1243 return 0; 1244 1245 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1246 (count - 1), NULL); 1247 1248 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1249 1250 return count; 1251 } 1252 1253 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1254 char *buf, size_t count, 1255 loff_t *ppos) 1256 { 1257 unsigned int max_amsdu_len; 1258 int ret; 1259 1260 ret = kstrtouint(buf, 0, &max_amsdu_len); 1261 if (ret) 1262 return ret; 1263 1264 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1265 return -EINVAL; 1266 mvm->max_amsdu_len = max_amsdu_len; 1267 1268 return count; 1269 } 1270 1271 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1272 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1273 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1274 char __user *user_buf, 1275 size_t count, loff_t *ppos) 1276 { 1277 struct iwl_mvm *mvm = file->private_data; 1278 struct iwl_bcast_filter_cmd cmd; 1279 const struct iwl_fw_bcast_filter *filter; 1280 char *buf; 1281 int bufsz = 1024; 1282 int i, j, pos = 0; 1283 ssize_t ret; 1284 1285 buf = kzalloc(bufsz, GFP_KERNEL); 1286 if (!buf) 1287 return -ENOMEM; 1288 1289 mutex_lock(&mvm->mutex); 1290 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1291 ADD_TEXT("None\n"); 1292 mutex_unlock(&mvm->mutex); 1293 goto out; 1294 } 1295 mutex_unlock(&mvm->mutex); 1296 1297 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1298 filter = &cmd.filters[i]; 1299 1300 ADD_TEXT("Filter [%d]:\n", i); 1301 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1302 ADD_TEXT("\tFrame Type: %s\n", 1303 filter->frame_type ? "IPv4" : "Generic"); 1304 1305 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1306 const struct iwl_fw_bcast_filter_attr *attr; 1307 1308 attr = &filter->attrs[j]; 1309 if (!attr->mask) 1310 break; 1311 1312 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1313 j, attr->offset, 1314 attr->offset_type ? "IP End" : 1315 "Payload Start", 1316 be32_to_cpu(attr->mask), 1317 be32_to_cpu(attr->val), 1318 le16_to_cpu(attr->reserved1)); 1319 } 1320 } 1321 out: 1322 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1323 kfree(buf); 1324 return ret; 1325 } 1326 1327 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1328 size_t count, loff_t *ppos) 1329 { 1330 int pos, next_pos; 1331 struct iwl_fw_bcast_filter filter = {}; 1332 struct iwl_bcast_filter_cmd cmd; 1333 u32 filter_id, attr_id, mask, value; 1334 int err = 0; 1335 1336 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1337 &filter.frame_type, &pos) != 3) 1338 return -EINVAL; 1339 1340 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1341 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1342 return -EINVAL; 1343 1344 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1345 attr_id++) { 1346 struct iwl_fw_bcast_filter_attr *attr = 1347 &filter.attrs[attr_id]; 1348 1349 if (pos >= count) 1350 break; 1351 1352 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1353 &attr->offset, &attr->offset_type, 1354 &mask, &value, &next_pos) != 4) 1355 return -EINVAL; 1356 1357 attr->mask = cpu_to_be32(mask); 1358 attr->val = cpu_to_be32(value); 1359 if (mask) 1360 filter.num_attrs++; 1361 1362 pos += next_pos; 1363 } 1364 1365 mutex_lock(&mvm->mutex); 1366 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1367 &filter, sizeof(filter)); 1368 1369 /* send updated bcast filtering configuration */ 1370 if (iwl_mvm_firmware_running(mvm) && 1371 mvm->dbgfs_bcast_filtering.override && 1372 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1373 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1374 sizeof(cmd), &cmd); 1375 mutex_unlock(&mvm->mutex); 1376 1377 return err ?: count; 1378 } 1379 1380 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1381 char __user *user_buf, 1382 size_t count, loff_t *ppos) 1383 { 1384 struct iwl_mvm *mvm = file->private_data; 1385 struct iwl_bcast_filter_cmd cmd; 1386 char *buf; 1387 int bufsz = 1024; 1388 int i, pos = 0; 1389 ssize_t ret; 1390 1391 buf = kzalloc(bufsz, GFP_KERNEL); 1392 if (!buf) 1393 return -ENOMEM; 1394 1395 mutex_lock(&mvm->mutex); 1396 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1397 ADD_TEXT("None\n"); 1398 mutex_unlock(&mvm->mutex); 1399 goto out; 1400 } 1401 mutex_unlock(&mvm->mutex); 1402 1403 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1404 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1405 1406 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1407 i, mac->default_discard, mac->attached_filters); 1408 } 1409 out: 1410 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1411 kfree(buf); 1412 return ret; 1413 } 1414 1415 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1416 char *buf, size_t count, 1417 loff_t *ppos) 1418 { 1419 struct iwl_bcast_filter_cmd cmd; 1420 struct iwl_fw_bcast_mac mac = {}; 1421 u32 mac_id, attached_filters; 1422 int err = 0; 1423 1424 if (!mvm->bcast_filters) 1425 return -ENOENT; 1426 1427 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1428 &attached_filters) != 3) 1429 return -EINVAL; 1430 1431 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1432 mac.default_discard > 1 || 1433 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1434 return -EINVAL; 1435 1436 mac.attached_filters = cpu_to_le16(attached_filters); 1437 1438 mutex_lock(&mvm->mutex); 1439 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1440 &mac, sizeof(mac)); 1441 1442 /* send updated bcast filtering configuration */ 1443 if (iwl_mvm_firmware_running(mvm) && 1444 mvm->dbgfs_bcast_filtering.override && 1445 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1446 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1447 sizeof(cmd), &cmd); 1448 mutex_unlock(&mvm->mutex); 1449 1450 return err ?: count; 1451 } 1452 #endif 1453 1454 #ifdef CONFIG_PM_SLEEP 1455 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1456 size_t count, loff_t *ppos) 1457 { 1458 int store; 1459 1460 if (sscanf(buf, "%d", &store) != 1) 1461 return -EINVAL; 1462 1463 mvm->store_d3_resume_sram = store; 1464 1465 return count; 1466 } 1467 1468 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1469 size_t count, loff_t *ppos) 1470 { 1471 struct iwl_mvm *mvm = file->private_data; 1472 const struct fw_img *img; 1473 int ofs, len, pos = 0; 1474 size_t bufsz, ret; 1475 char *buf; 1476 u8 *ptr = mvm->d3_resume_sram; 1477 1478 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1479 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1480 1481 bufsz = len * 4 + 256; 1482 buf = kzalloc(bufsz, GFP_KERNEL); 1483 if (!buf) 1484 return -ENOMEM; 1485 1486 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1487 mvm->store_d3_resume_sram ? "en" : "dis"); 1488 1489 if (ptr) { 1490 for (ofs = 0; ofs < len; ofs += 16) { 1491 pos += scnprintf(buf + pos, bufsz - pos, 1492 "0x%.4x %16ph\n", ofs, ptr + ofs); 1493 } 1494 } else { 1495 pos += scnprintf(buf + pos, bufsz - pos, 1496 "(no data captured)\n"); 1497 } 1498 1499 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1500 1501 kfree(buf); 1502 1503 return ret; 1504 } 1505 #endif 1506 1507 #define PRINT_MVM_REF(ref) do { \ 1508 if (mvm->refs[ref]) \ 1509 pos += scnprintf(buf + pos, bufsz - pos, \ 1510 "\t(0x%lx): %d %s\n", \ 1511 BIT(ref), mvm->refs[ref], #ref); \ 1512 } while (0) 1513 1514 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1515 char __user *user_buf, 1516 size_t count, loff_t *ppos) 1517 { 1518 struct iwl_mvm *mvm = file->private_data; 1519 int i, pos = 0; 1520 char buf[256]; 1521 const size_t bufsz = sizeof(buf); 1522 u32 refs = 0; 1523 1524 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1525 if (mvm->refs[i]) 1526 refs |= BIT(i); 1527 1528 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1529 refs); 1530 1531 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1532 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1533 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1534 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1535 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1536 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1537 PRINT_MVM_REF(IWL_MVM_REF_USER); 1538 PRINT_MVM_REF(IWL_MVM_REF_TX); 1539 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1540 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1541 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1542 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1543 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1544 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1545 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1546 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1547 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1548 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1549 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1550 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1551 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1552 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1553 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1554 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1555 PRINT_MVM_REF(IWL_MVM_REF_RX); 1556 1557 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1558 } 1559 1560 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1561 size_t count, loff_t *ppos) 1562 { 1563 unsigned long value; 1564 int ret; 1565 bool taken; 1566 1567 ret = kstrtoul(buf, 10, &value); 1568 if (ret < 0) 1569 return ret; 1570 1571 mutex_lock(&mvm->mutex); 1572 1573 taken = mvm->refs[IWL_MVM_REF_USER]; 1574 if (value == 1 && !taken) 1575 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1576 else if (value == 0 && taken) 1577 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1578 else 1579 ret = -EINVAL; 1580 1581 mutex_unlock(&mvm->mutex); 1582 1583 if (ret < 0) 1584 return ret; 1585 return count; 1586 } 1587 1588 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1589 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1590 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1591 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1592 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1593 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1594 &iwl_dbgfs_##name##_ops)) \ 1595 goto err; \ 1596 } while (0) 1597 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1598 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1599 1600 static ssize_t 1601 iwl_dbgfs_prph_reg_read(struct file *file, 1602 char __user *user_buf, 1603 size_t count, loff_t *ppos) 1604 { 1605 struct iwl_mvm *mvm = file->private_data; 1606 int pos = 0; 1607 char buf[32]; 1608 const size_t bufsz = sizeof(buf); 1609 int ret; 1610 1611 if (!mvm->dbgfs_prph_reg_addr) 1612 return -EINVAL; 1613 1614 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1615 if (ret) 1616 return ret; 1617 1618 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1619 mvm->dbgfs_prph_reg_addr, 1620 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1621 1622 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1623 1624 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1625 } 1626 1627 static ssize_t 1628 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1629 size_t count, loff_t *ppos) 1630 { 1631 u8 args; 1632 u32 value; 1633 int ret; 1634 1635 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1636 /* if we only want to set the reg address - nothing more to do */ 1637 if (args == 1) 1638 goto out; 1639 1640 /* otherwise, make sure we have both address and value */ 1641 if (args != 2) 1642 return -EINVAL; 1643 1644 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1645 if (ret) 1646 return ret; 1647 1648 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1649 1650 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1651 out: 1652 return count; 1653 } 1654 1655 static ssize_t 1656 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1657 size_t count, loff_t *ppos) 1658 { 1659 int ret; 1660 1661 if (!iwl_mvm_firmware_running(mvm)) 1662 return -EIO; 1663 1664 mutex_lock(&mvm->mutex); 1665 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1666 mutex_unlock(&mvm->mutex); 1667 1668 return ret ?: count; 1669 } 1670 1671 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1672 1673 /* Device wide debugfs entries */ 1674 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1675 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1676 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1677 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1678 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1679 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1680 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1681 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1682 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1683 MVM_DEBUGFS_READ_FILE_OPS(stations); 1684 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1685 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1686 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1687 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1688 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1689 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1690 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1691 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1692 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1693 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1694 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1695 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1696 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1697 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1698 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1699 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1700 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1701 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1702 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1703 1704 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1705 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1706 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1707 #endif 1708 1709 #ifdef CONFIG_PM_SLEEP 1710 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1711 #endif 1712 #ifdef CONFIG_ACPI 1713 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1714 #endif 1715 1716 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1717 size_t count, loff_t *ppos) 1718 { 1719 struct iwl_mvm *mvm = file->private_data; 1720 struct iwl_dbg_mem_access_cmd cmd = {}; 1721 struct iwl_dbg_mem_access_rsp *rsp; 1722 struct iwl_host_cmd hcmd = { 1723 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1724 .data = { &cmd, }, 1725 .len = { sizeof(cmd) }, 1726 }; 1727 size_t delta; 1728 ssize_t ret, len; 1729 1730 if (!iwl_mvm_firmware_running(mvm)) 1731 return -EIO; 1732 1733 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1734 DEBUG_GROUP, 0); 1735 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1736 1737 /* Take care of alignment of both the position and the length */ 1738 delta = *ppos & 0x3; 1739 cmd.addr = cpu_to_le32(*ppos - delta); 1740 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1741 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1742 1743 mutex_lock(&mvm->mutex); 1744 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1745 mutex_unlock(&mvm->mutex); 1746 1747 if (ret < 0) 1748 return ret; 1749 1750 rsp = (void *)hcmd.resp_pkt->data; 1751 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1752 ret = -ENXIO; 1753 goto out; 1754 } 1755 1756 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1757 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1758 len = min(len - delta, count); 1759 if (len < 0) { 1760 ret = -EFAULT; 1761 goto out; 1762 } 1763 1764 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1765 *ppos += ret; 1766 1767 out: 1768 iwl_free_resp(&hcmd); 1769 return ret; 1770 } 1771 1772 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1773 const char __user *user_buf, size_t count, 1774 loff_t *ppos) 1775 { 1776 struct iwl_mvm *mvm = file->private_data; 1777 struct iwl_dbg_mem_access_cmd *cmd; 1778 struct iwl_dbg_mem_access_rsp *rsp; 1779 struct iwl_host_cmd hcmd = {}; 1780 size_t cmd_size; 1781 size_t data_size; 1782 u32 op, len; 1783 ssize_t ret; 1784 1785 if (!iwl_mvm_firmware_running(mvm)) 1786 return -EIO; 1787 1788 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1789 DEBUG_GROUP, 0); 1790 1791 if (*ppos & 0x3 || count < 4) { 1792 op = DEBUG_MEM_OP_WRITE_BYTES; 1793 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1794 data_size = len; 1795 } else { 1796 op = DEBUG_MEM_OP_WRITE; 1797 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1798 data_size = len << 2; 1799 } 1800 1801 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1802 cmd = kzalloc(cmd_size, GFP_KERNEL); 1803 if (!cmd) 1804 return -ENOMEM; 1805 1806 cmd->op = cpu_to_le32(op); 1807 cmd->len = cpu_to_le32(len); 1808 cmd->addr = cpu_to_le32(*ppos); 1809 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1810 kfree(cmd); 1811 return -EFAULT; 1812 } 1813 1814 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1815 hcmd.data[0] = (void *)cmd; 1816 hcmd.len[0] = cmd_size; 1817 1818 mutex_lock(&mvm->mutex); 1819 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1820 mutex_unlock(&mvm->mutex); 1821 1822 kfree(cmd); 1823 1824 if (ret < 0) 1825 return ret; 1826 1827 rsp = (void *)hcmd.resp_pkt->data; 1828 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1829 ret = -ENXIO; 1830 goto out; 1831 } 1832 1833 ret = data_size; 1834 *ppos += ret; 1835 1836 out: 1837 iwl_free_resp(&hcmd); 1838 return ret; 1839 } 1840 1841 static const struct file_operations iwl_dbgfs_mem_ops = { 1842 .read = iwl_dbgfs_mem_read, 1843 .write = iwl_dbgfs_mem_write, 1844 .open = simple_open, 1845 .llseek = default_llseek, 1846 }; 1847 1848 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1849 { 1850 struct dentry *bcast_dir __maybe_unused; 1851 char buf[100]; 1852 1853 spin_lock_init(&mvm->drv_stats_lock); 1854 1855 mvm->debugfs_dir = dbgfs_dir; 1856 1857 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1858 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1859 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1860 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1861 S_IWUSR | S_IRUSR); 1862 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1863 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); 1864 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); 1865 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); 1866 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1867 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1868 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1869 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1870 S_IRUSR | S_IWUSR); 1871 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, S_IRUSR); 1872 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1873 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1874 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1875 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1876 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1877 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1878 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1879 S_IWUSR | S_IRUSR); 1880 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1881 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1882 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1883 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1884 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR); 1885 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1886 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1887 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); 1888 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); 1889 #ifdef CONFIG_ACPI 1890 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR); 1891 #endif 1892 1893 if (!debugfs_create_bool("enable_scan_iteration_notif", 1894 S_IRUSR | S_IWUSR, 1895 mvm->debugfs_dir, 1896 &mvm->scan_iter_notif_enabled)) 1897 goto err; 1898 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR, 1899 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 1900 goto err; 1901 1902 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1903 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1904 bcast_dir = debugfs_create_dir("bcast_filtering", 1905 mvm->debugfs_dir); 1906 if (!bcast_dir) 1907 goto err; 1908 1909 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1910 bcast_dir, 1911 &mvm->dbgfs_bcast_filtering.override)) 1912 goto err; 1913 1914 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1915 bcast_dir, S_IWUSR | S_IRUSR); 1916 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1917 bcast_dir, S_IWUSR | S_IRUSR); 1918 } 1919 #endif 1920 1921 #ifdef CONFIG_PM_SLEEP 1922 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1923 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1924 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1925 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1926 goto err; 1927 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 1928 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 1929 goto err; 1930 #endif 1931 1932 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 1933 mvm->debugfs_dir, &mvm->ps_disabled)) 1934 goto err; 1935 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 1936 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 1937 goto err; 1938 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 1939 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 1940 goto err; 1941 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 1942 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 1943 goto err; 1944 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 1945 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 1946 goto err; 1947 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 1948 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 1949 goto err; 1950 1951 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm, 1952 &iwl_dbgfs_mem_ops); 1953 1954 /* 1955 * Create a symlink with mac80211. It will be removed when mac80211 1956 * exists (before the opmode exists which removes the target.) 1957 */ 1958 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 1959 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 1960 goto err; 1961 1962 return 0; 1963 err: 1964 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 1965 return -ENOMEM; 1966 } 1967