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_mvm *mvm, 474 struct iwl_bt_coex_profile_notif *notif, char *buf, 475 int pos, int bufsz) 476 { 477 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 478 479 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 480 BT_MBOX_PRINT(0, LE_PROF1, false); 481 BT_MBOX_PRINT(0, LE_PROF2, false); 482 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 483 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 484 BT_MBOX_PRINT(0, INBAND_S, false); 485 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 486 BT_MBOX_PRINT(0, LE_SCAN, false); 487 BT_MBOX_PRINT(0, LE_ADV, false); 488 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 489 BT_MBOX_PRINT(0, OPEN_CON_1, true); 490 491 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 492 493 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 494 BT_MBOX_PRINT(1, IP_SR, false); 495 BT_MBOX_PRINT(1, LE_MSTR, false); 496 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 497 BT_MBOX_PRINT(1, MSG_TYPE, false); 498 BT_MBOX_PRINT(1, SSN, true); 499 500 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 501 502 BT_MBOX_PRINT(2, SNIFF_ACT, false); 503 BT_MBOX_PRINT(2, PAG, false); 504 BT_MBOX_PRINT(2, INQUIRY, false); 505 BT_MBOX_PRINT(2, CONN, false); 506 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 507 BT_MBOX_PRINT(2, DISC, false); 508 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 509 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 510 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 511 BT_MBOX_PRINT(2, SCO_DURATION, true); 512 513 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 514 515 BT_MBOX_PRINT(3, SCO_STATE, false); 516 BT_MBOX_PRINT(3, SNIFF_STATE, false); 517 BT_MBOX_PRINT(3, A2DP_STATE, false); 518 BT_MBOX_PRINT(3, A2DP_SRC, false); 519 BT_MBOX_PRINT(3, ACL_STATE, false); 520 BT_MBOX_PRINT(3, MSTR_STATE, false); 521 BT_MBOX_PRINT(3, OBX_STATE, false); 522 BT_MBOX_PRINT(3, OPEN_CON_2, false); 523 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 524 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 525 BT_MBOX_PRINT(3, INBAND_P, false); 526 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 527 BT_MBOX_PRINT(3, SSN_2, false); 528 BT_MBOX_PRINT(3, UPDATE_REQUEST, !iwl_mvm_has_new_ats_coex_api(mvm)); 529 530 if (iwl_mvm_has_new_ats_coex_api(mvm)) { 531 BT_MBOX_PRINT(4, ATS_BT_INTERVAL, false); 532 BT_MBOX_PRINT(4, ATS_BT_ACTIVE_MAX_TH, true); 533 } 534 535 return pos; 536 } 537 538 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 539 size_t count, loff_t *ppos) 540 { 541 struct iwl_mvm *mvm = file->private_data; 542 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 543 char *buf; 544 int ret, pos = 0, bufsz = sizeof(char) * 1024; 545 546 buf = kmalloc(bufsz, GFP_KERNEL); 547 if (!buf) 548 return -ENOMEM; 549 550 mutex_lock(&mvm->mutex); 551 552 pos += iwl_mvm_coex_dump_mbox(mvm, notif, buf, pos, bufsz); 553 554 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 555 notif->bt_ci_compliance); 556 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 557 le32_to_cpu(notif->primary_ch_lut)); 558 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 559 le32_to_cpu(notif->secondary_ch_lut)); 560 pos += scnprintf(buf + pos, 561 bufsz - pos, "bt_activity_grading = %d\n", 562 le32_to_cpu(notif->bt_activity_grading)); 563 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 564 notif->rrc_status & 0xF); 565 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 566 notif->ttc_status & 0xF); 567 568 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 569 IWL_MVM_BT_COEX_SYNC2SCO); 570 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 571 IWL_MVM_BT_COEX_MPLUT); 572 573 mutex_unlock(&mvm->mutex); 574 575 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 576 kfree(buf); 577 578 return ret; 579 } 580 #undef BT_MBOX_PRINT 581 582 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 583 size_t count, loff_t *ppos) 584 { 585 struct iwl_mvm *mvm = file->private_data; 586 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 587 char buf[256]; 588 int bufsz = sizeof(buf); 589 int pos = 0; 590 591 mutex_lock(&mvm->mutex); 592 593 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 594 pos += scnprintf(buf + pos, bufsz - pos, 595 "\tPrimary Channel Bitmap 0x%016llx\n", 596 le64_to_cpu(cmd->bt_primary_ci)); 597 pos += scnprintf(buf + pos, bufsz - pos, 598 "\tSecondary Channel Bitmap 0x%016llx\n", 599 le64_to_cpu(cmd->bt_secondary_ci)); 600 601 mutex_unlock(&mvm->mutex); 602 603 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 604 } 605 606 static ssize_t 607 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 608 size_t count, loff_t *ppos) 609 { 610 u32 bt_tx_prio; 611 612 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 613 return -EINVAL; 614 if (bt_tx_prio > 4) 615 return -EINVAL; 616 617 mvm->bt_tx_prio = bt_tx_prio; 618 619 return count; 620 } 621 622 static ssize_t 623 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 624 size_t count, loff_t *ppos) 625 { 626 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 627 [BT_FORCE_ANT_DIS] = "dis", 628 [BT_FORCE_ANT_AUTO] = "auto", 629 [BT_FORCE_ANT_BT] = "bt", 630 [BT_FORCE_ANT_WIFI] = "wifi", 631 }; 632 int ret, bt_force_ant_mode; 633 634 for (bt_force_ant_mode = 0; 635 bt_force_ant_mode < ARRAY_SIZE(modes_str); 636 bt_force_ant_mode++) { 637 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 638 break; 639 } 640 641 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 642 return -EINVAL; 643 644 ret = 0; 645 mutex_lock(&mvm->mutex); 646 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 647 goto out; 648 649 mvm->bt_force_ant_mode = bt_force_ant_mode; 650 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 651 modes_str[mvm->bt_force_ant_mode]); 652 653 if (iwl_mvm_firmware_running(mvm)) 654 ret = iwl_mvm_send_bt_init_conf(mvm); 655 else 656 ret = 0; 657 658 out: 659 mutex_unlock(&mvm->mutex); 660 return ret ?: count; 661 } 662 663 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 664 size_t count, loff_t *ppos) 665 { 666 struct iwl_mvm *mvm = file->private_data; 667 char *buff, *pos, *endpos; 668 static const size_t bufsz = 1024; 669 int ret; 670 671 buff = kmalloc(bufsz, GFP_KERNEL); 672 if (!buff) 673 return -ENOMEM; 674 675 pos = buff; 676 endpos = pos + bufsz; 677 678 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 679 mvm->trans->cfg->fw_name_pre); 680 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 681 mvm->fwrt.fw->human_readable); 682 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 683 mvm->fwrt.trans->cfg->name); 684 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 685 mvm->fwrt.dev->bus->name); 686 687 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 688 kfree(buff); 689 690 return ret; 691 } 692 693 #define PRINT_STATS_LE32(_struct, _memb) \ 694 pos += scnprintf(buf + pos, bufsz - pos, \ 695 fmt_table, #_memb, \ 696 le32_to_cpu(_struct->_memb)) 697 698 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 699 char __user *user_buf, size_t count, 700 loff_t *ppos) 701 { 702 struct iwl_mvm *mvm = file->private_data; 703 static const char *fmt_table = "\t%-30s %10u\n"; 704 static const char *fmt_header = "%-32s\n"; 705 int pos = 0; 706 char *buf; 707 int ret; 708 size_t bufsz; 709 710 if (iwl_mvm_has_new_rx_stats_api(mvm)) 711 bufsz = ((sizeof(struct mvm_statistics_rx) / 712 sizeof(__le32)) * 43) + (4 * 33) + 1; 713 else 714 /* 43 = size of each data line; 33 = size of each header */ 715 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 716 sizeof(__le32)) * 43) + (4 * 33) + 1; 717 718 buf = kzalloc(bufsz, GFP_KERNEL); 719 if (!buf) 720 return -ENOMEM; 721 722 mutex_lock(&mvm->mutex); 723 724 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 725 "Statistics_Rx - OFDM"); 726 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 727 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 728 729 PRINT_STATS_LE32(ofdm, ina_cnt); 730 PRINT_STATS_LE32(ofdm, fina_cnt); 731 PRINT_STATS_LE32(ofdm, plcp_err); 732 PRINT_STATS_LE32(ofdm, crc32_err); 733 PRINT_STATS_LE32(ofdm, overrun_err); 734 PRINT_STATS_LE32(ofdm, early_overrun_err); 735 PRINT_STATS_LE32(ofdm, crc32_good); 736 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 737 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 738 PRINT_STATS_LE32(ofdm, sfd_timeout); 739 PRINT_STATS_LE32(ofdm, fina_timeout); 740 PRINT_STATS_LE32(ofdm, unresponded_rts); 741 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 742 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 743 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 744 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 745 PRINT_STATS_LE32(ofdm, dsp_self_kill); 746 PRINT_STATS_LE32(ofdm, mh_format_err); 747 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 748 PRINT_STATS_LE32(ofdm, reserved); 749 } else { 750 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 751 752 PRINT_STATS_LE32(ofdm, unresponded_rts); 753 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 754 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 755 PRINT_STATS_LE32(ofdm, dsp_self_kill); 756 PRINT_STATS_LE32(ofdm, reserved); 757 } 758 759 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 760 "Statistics_Rx - CCK"); 761 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 762 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 763 764 PRINT_STATS_LE32(cck, ina_cnt); 765 PRINT_STATS_LE32(cck, fina_cnt); 766 PRINT_STATS_LE32(cck, plcp_err); 767 PRINT_STATS_LE32(cck, crc32_err); 768 PRINT_STATS_LE32(cck, overrun_err); 769 PRINT_STATS_LE32(cck, early_overrun_err); 770 PRINT_STATS_LE32(cck, crc32_good); 771 PRINT_STATS_LE32(cck, false_alarm_cnt); 772 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 773 PRINT_STATS_LE32(cck, sfd_timeout); 774 PRINT_STATS_LE32(cck, fina_timeout); 775 PRINT_STATS_LE32(cck, unresponded_rts); 776 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 777 PRINT_STATS_LE32(cck, sent_ack_cnt); 778 PRINT_STATS_LE32(cck, sent_cts_cnt); 779 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 780 PRINT_STATS_LE32(cck, dsp_self_kill); 781 PRINT_STATS_LE32(cck, mh_format_err); 782 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 783 PRINT_STATS_LE32(cck, reserved); 784 } else { 785 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 786 787 PRINT_STATS_LE32(cck, unresponded_rts); 788 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 789 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 790 PRINT_STATS_LE32(cck, dsp_self_kill); 791 PRINT_STATS_LE32(cck, reserved); 792 } 793 794 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 795 "Statistics_Rx - GENERAL"); 796 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 797 struct mvm_statistics_rx_non_phy_v3 *general = 798 &mvm->rx_stats_v3.general; 799 800 PRINT_STATS_LE32(general, bogus_cts); 801 PRINT_STATS_LE32(general, bogus_ack); 802 PRINT_STATS_LE32(general, non_bssid_frames); 803 PRINT_STATS_LE32(general, filtered_frames); 804 PRINT_STATS_LE32(general, non_channel_beacons); 805 PRINT_STATS_LE32(general, channel_beacons); 806 PRINT_STATS_LE32(general, num_missed_bcon); 807 PRINT_STATS_LE32(general, adc_rx_saturation_time); 808 PRINT_STATS_LE32(general, ina_detection_search_time); 809 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 810 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 811 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 812 PRINT_STATS_LE32(general, interference_data_flag); 813 PRINT_STATS_LE32(general, channel_load); 814 PRINT_STATS_LE32(general, dsp_false_alarms); 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 PRINT_STATS_LE32(general, directed_data_mpdu); 824 } else { 825 struct mvm_statistics_rx_non_phy *general = 826 &mvm->rx_stats.general; 827 828 PRINT_STATS_LE32(general, bogus_cts); 829 PRINT_STATS_LE32(general, bogus_ack); 830 PRINT_STATS_LE32(general, non_channel_beacons); 831 PRINT_STATS_LE32(general, channel_beacons); 832 PRINT_STATS_LE32(general, num_missed_bcon); 833 PRINT_STATS_LE32(general, adc_rx_saturation_time); 834 PRINT_STATS_LE32(general, ina_detection_search_time); 835 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 836 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 837 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 838 PRINT_STATS_LE32(general, interference_data_flag); 839 PRINT_STATS_LE32(general, channel_load); 840 PRINT_STATS_LE32(general, beacon_rssi_a); 841 PRINT_STATS_LE32(general, beacon_rssi_b); 842 PRINT_STATS_LE32(general, beacon_rssi_c); 843 PRINT_STATS_LE32(general, beacon_energy_a); 844 PRINT_STATS_LE32(general, beacon_energy_b); 845 PRINT_STATS_LE32(general, beacon_energy_c); 846 PRINT_STATS_LE32(general, num_bt_kills); 847 PRINT_STATS_LE32(general, mac_id); 848 } 849 850 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 851 "Statistics_Rx - HT"); 852 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 853 struct mvm_statistics_rx_ht_phy_v1 *ht = 854 &mvm->rx_stats_v3.ofdm_ht; 855 856 PRINT_STATS_LE32(ht, plcp_err); 857 PRINT_STATS_LE32(ht, overrun_err); 858 PRINT_STATS_LE32(ht, early_overrun_err); 859 PRINT_STATS_LE32(ht, crc32_good); 860 PRINT_STATS_LE32(ht, crc32_err); 861 PRINT_STATS_LE32(ht, mh_format_err); 862 PRINT_STATS_LE32(ht, agg_crc32_good); 863 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 864 PRINT_STATS_LE32(ht, agg_cnt); 865 PRINT_STATS_LE32(ht, unsupport_mcs); 866 } else { 867 struct mvm_statistics_rx_ht_phy *ht = 868 &mvm->rx_stats.ofdm_ht; 869 870 PRINT_STATS_LE32(ht, mh_format_err); 871 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 872 PRINT_STATS_LE32(ht, agg_cnt); 873 PRINT_STATS_LE32(ht, unsupport_mcs); 874 } 875 876 mutex_unlock(&mvm->mutex); 877 878 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 879 kfree(buf); 880 881 return ret; 882 } 883 #undef PRINT_STAT_LE32 884 885 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 886 char __user *user_buf, size_t count, 887 loff_t *ppos, 888 struct iwl_mvm_frame_stats *stats) 889 { 890 char *buff, *pos, *endpos; 891 int idx, i; 892 int ret; 893 static const size_t bufsz = 1024; 894 895 buff = kmalloc(bufsz, GFP_KERNEL); 896 if (!buff) 897 return -ENOMEM; 898 899 spin_lock_bh(&mvm->drv_stats_lock); 900 901 pos = buff; 902 endpos = pos + bufsz; 903 904 pos += scnprintf(pos, endpos - pos, 905 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 906 stats->legacy_frames, 907 stats->ht_frames, 908 stats->vht_frames); 909 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 910 stats->bw_20_frames, 911 stats->bw_40_frames, 912 stats->bw_80_frames); 913 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 914 stats->ngi_frames, 915 stats->sgi_frames); 916 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 917 stats->siso_frames, 918 stats->mimo2_frames); 919 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 920 stats->fail_frames, 921 stats->success_frames); 922 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 923 stats->agg_frames); 924 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 925 stats->ampdu_count); 926 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 927 stats->ampdu_count > 0 ? 928 (stats->agg_frames / stats->ampdu_count) : 0); 929 930 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 931 932 idx = stats->last_frame_idx - 1; 933 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 934 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 935 if (stats->last_rates[idx] == 0) 936 continue; 937 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 938 (int)(ARRAY_SIZE(stats->last_rates) - i)); 939 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 940 } 941 spin_unlock_bh(&mvm->drv_stats_lock); 942 943 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 944 kfree(buff); 945 946 return ret; 947 } 948 949 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 950 char __user *user_buf, size_t count, 951 loff_t *ppos) 952 { 953 struct iwl_mvm *mvm = file->private_data; 954 955 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 956 &mvm->drv_rx_stats); 957 } 958 959 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 960 size_t count, loff_t *ppos) 961 { 962 int __maybe_unused ret; 963 964 if (!iwl_mvm_firmware_running(mvm)) 965 return -EIO; 966 967 mutex_lock(&mvm->mutex); 968 969 /* allow one more restart that we're provoking here */ 970 if (mvm->fw_restart >= 0) 971 mvm->fw_restart++; 972 973 /* take the return value to make compiler happy - it will fail anyway */ 974 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 975 976 mutex_unlock(&mvm->mutex); 977 978 return count; 979 } 980 981 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 982 size_t count, loff_t *ppos) 983 { 984 int ret; 985 986 if (!iwl_mvm_firmware_running(mvm)) 987 return -EIO; 988 989 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 990 if (ret) 991 return ret; 992 993 iwl_force_nmi(mvm->trans); 994 995 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 996 997 return count; 998 } 999 1000 static ssize_t 1001 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1002 char __user *user_buf, 1003 size_t count, loff_t *ppos) 1004 { 1005 struct iwl_mvm *mvm = file->private_data; 1006 int pos = 0; 1007 char buf[32]; 1008 const size_t bufsz = sizeof(buf); 1009 1010 /* print which antennas were set for the scan command by the user */ 1011 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1012 if (mvm->scan_rx_ant & ANT_A) 1013 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1014 if (mvm->scan_rx_ant & ANT_B) 1015 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1016 if (mvm->scan_rx_ant & ANT_C) 1017 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1018 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1019 1020 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1021 } 1022 1023 static ssize_t 1024 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1025 size_t count, loff_t *ppos) 1026 { 1027 u8 scan_rx_ant; 1028 1029 if (!iwl_mvm_firmware_running(mvm)) 1030 return -EIO; 1031 1032 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1033 return -EINVAL; 1034 if (scan_rx_ant > ANT_ABC) 1035 return -EINVAL; 1036 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1037 return -EINVAL; 1038 1039 if (mvm->scan_rx_ant != scan_rx_ant) { 1040 mvm->scan_rx_ant = scan_rx_ant; 1041 if (fw_has_capa(&mvm->fw->ucode_capa, 1042 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1043 iwl_mvm_config_scan(mvm); 1044 } 1045 1046 return count; 1047 } 1048 1049 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1050 char *buf, size_t count, 1051 loff_t *ppos) 1052 { 1053 struct iwl_rss_config_cmd cmd = { 1054 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1055 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1056 IWL_RSS_HASH_TYPE_IPV4_UDP | 1057 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1058 IWL_RSS_HASH_TYPE_IPV6_TCP | 1059 IWL_RSS_HASH_TYPE_IPV6_UDP | 1060 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1061 }; 1062 int ret, i, num_repeats, nbytes = count / 2; 1063 1064 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1065 if (ret) 1066 return ret; 1067 1068 /* 1069 * The input is the redirection table, partial or full. 1070 * Repeat the pattern if needed. 1071 * For example, input of 01020F will be repeated 42 times, 1072 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1073 * queues 3 - 14). 1074 */ 1075 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1076 for (i = 1; i < num_repeats; i++) 1077 memcpy(&cmd.indirection_table[i * nbytes], 1078 cmd.indirection_table, nbytes); 1079 /* handle cut in the middle pattern for the last places */ 1080 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1081 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1082 1083 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1084 1085 mutex_lock(&mvm->mutex); 1086 if (iwl_mvm_firmware_running(mvm)) 1087 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1088 sizeof(cmd), &cmd); 1089 else 1090 ret = 0; 1091 mutex_unlock(&mvm->mutex); 1092 1093 return ret ?: count; 1094 } 1095 1096 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1097 char *buf, size_t count, 1098 loff_t *ppos) 1099 { 1100 struct iwl_rx_cmd_buffer rxb = { 1101 ._rx_page_order = 0, 1102 .truesize = 0, /* not used */ 1103 ._offset = 0, 1104 }; 1105 struct iwl_rx_packet *pkt; 1106 struct iwl_rx_mpdu_desc *desc; 1107 int bin_len = count / 2; 1108 int ret = -EINVAL; 1109 1110 if (!iwl_mvm_firmware_running(mvm)) 1111 return -EIO; 1112 1113 /* supporting only 9000 descriptor */ 1114 if (!mvm->trans->cfg->mq_rx_supported) 1115 return -ENOTSUPP; 1116 1117 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1118 if (!rxb._page) 1119 return -ENOMEM; 1120 pkt = rxb_addr(&rxb); 1121 1122 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1123 if (ret) 1124 goto out; 1125 1126 /* avoid invalid memory access */ 1127 if (bin_len < sizeof(*pkt) + sizeof(*desc)) 1128 goto out; 1129 1130 /* check this is RX packet */ 1131 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1132 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1133 goto out; 1134 1135 /* check the length in metadata matches actual received length */ 1136 desc = (void *)pkt->data; 1137 if (le16_to_cpu(desc->mpdu_len) != 1138 (bin_len - sizeof(*desc) - sizeof(*pkt))) 1139 goto out; 1140 1141 local_bh_disable(); 1142 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1143 local_bh_enable(); 1144 ret = 0; 1145 1146 out: 1147 iwl_free_rxb(&rxb); 1148 1149 return ret ?: count; 1150 } 1151 1152 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1153 char __user *user_buf, 1154 size_t count, loff_t *ppos) 1155 { 1156 struct iwl_mvm *mvm = file->private_data; 1157 int conf; 1158 char buf[8]; 1159 const size_t bufsz = sizeof(buf); 1160 int pos = 0; 1161 1162 mutex_lock(&mvm->mutex); 1163 conf = mvm->fwrt.dump.conf; 1164 mutex_unlock(&mvm->mutex); 1165 1166 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1167 1168 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1169 } 1170 1171 /* 1172 * Enable / Disable continuous recording. 1173 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1174 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1175 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1176 */ 1177 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1178 char *buf, size_t count, 1179 loff_t *ppos) 1180 { 1181 struct iwl_trans *trans = mvm->trans; 1182 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 1183 struct iwl_continuous_record_cmd cont_rec = {}; 1184 int ret, rec_mode; 1185 1186 if (!iwl_mvm_firmware_running(mvm)) 1187 return -EIO; 1188 1189 if (!dest) 1190 return -EOPNOTSUPP; 1191 1192 if (dest->monitor_mode != SMEM_MODE || 1193 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1194 return -EOPNOTSUPP; 1195 1196 ret = kstrtoint(buf, 0, &rec_mode); 1197 if (ret) 1198 return ret; 1199 1200 cont_rec.record_mode.enable_recording = rec_mode ? 1201 cpu_to_le16(ENABLE_CONT_RECORDING) : 1202 cpu_to_le16(DISABLE_CONT_RECORDING); 1203 1204 mutex_lock(&mvm->mutex); 1205 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1206 sizeof(cont_rec), &cont_rec); 1207 mutex_unlock(&mvm->mutex); 1208 1209 return ret ?: count; 1210 } 1211 1212 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1213 char *buf, size_t count, 1214 loff_t *ppos) 1215 { 1216 unsigned int conf_id; 1217 int ret; 1218 1219 if (!iwl_mvm_firmware_running(mvm)) 1220 return -EIO; 1221 1222 ret = kstrtouint(buf, 0, &conf_id); 1223 if (ret) 1224 return ret; 1225 1226 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1227 return -EINVAL; 1228 1229 mutex_lock(&mvm->mutex); 1230 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1231 mutex_unlock(&mvm->mutex); 1232 1233 return ret ?: count; 1234 } 1235 1236 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1237 char *buf, size_t count, 1238 loff_t *ppos) 1239 { 1240 int ret; 1241 1242 if (!iwl_mvm_firmware_running(mvm)) 1243 return -EIO; 1244 1245 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1246 if (ret) 1247 return ret; 1248 if (count == 0) 1249 return 0; 1250 1251 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1252 (count - 1), NULL); 1253 1254 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1255 1256 return count; 1257 } 1258 1259 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1260 char *buf, size_t count, 1261 loff_t *ppos) 1262 { 1263 unsigned int max_amsdu_len; 1264 int ret; 1265 1266 ret = kstrtouint(buf, 0, &max_amsdu_len); 1267 if (ret) 1268 return ret; 1269 1270 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1271 return -EINVAL; 1272 mvm->max_amsdu_len = max_amsdu_len; 1273 1274 return count; 1275 } 1276 1277 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1278 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1279 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1280 char __user *user_buf, 1281 size_t count, loff_t *ppos) 1282 { 1283 struct iwl_mvm *mvm = file->private_data; 1284 struct iwl_bcast_filter_cmd cmd; 1285 const struct iwl_fw_bcast_filter *filter; 1286 char *buf; 1287 int bufsz = 1024; 1288 int i, j, pos = 0; 1289 ssize_t ret; 1290 1291 buf = kzalloc(bufsz, GFP_KERNEL); 1292 if (!buf) 1293 return -ENOMEM; 1294 1295 mutex_lock(&mvm->mutex); 1296 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1297 ADD_TEXT("None\n"); 1298 mutex_unlock(&mvm->mutex); 1299 goto out; 1300 } 1301 mutex_unlock(&mvm->mutex); 1302 1303 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1304 filter = &cmd.filters[i]; 1305 1306 ADD_TEXT("Filter [%d]:\n", i); 1307 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1308 ADD_TEXT("\tFrame Type: %s\n", 1309 filter->frame_type ? "IPv4" : "Generic"); 1310 1311 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1312 const struct iwl_fw_bcast_filter_attr *attr; 1313 1314 attr = &filter->attrs[j]; 1315 if (!attr->mask) 1316 break; 1317 1318 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1319 j, attr->offset, 1320 attr->offset_type ? "IP End" : 1321 "Payload Start", 1322 be32_to_cpu(attr->mask), 1323 be32_to_cpu(attr->val), 1324 le16_to_cpu(attr->reserved1)); 1325 } 1326 } 1327 out: 1328 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1329 kfree(buf); 1330 return ret; 1331 } 1332 1333 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1334 size_t count, loff_t *ppos) 1335 { 1336 int pos, next_pos; 1337 struct iwl_fw_bcast_filter filter = {}; 1338 struct iwl_bcast_filter_cmd cmd; 1339 u32 filter_id, attr_id, mask, value; 1340 int err = 0; 1341 1342 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1343 &filter.frame_type, &pos) != 3) 1344 return -EINVAL; 1345 1346 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1347 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1348 return -EINVAL; 1349 1350 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1351 attr_id++) { 1352 struct iwl_fw_bcast_filter_attr *attr = 1353 &filter.attrs[attr_id]; 1354 1355 if (pos >= count) 1356 break; 1357 1358 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1359 &attr->offset, &attr->offset_type, 1360 &mask, &value, &next_pos) != 4) 1361 return -EINVAL; 1362 1363 attr->mask = cpu_to_be32(mask); 1364 attr->val = cpu_to_be32(value); 1365 if (mask) 1366 filter.num_attrs++; 1367 1368 pos += next_pos; 1369 } 1370 1371 mutex_lock(&mvm->mutex); 1372 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1373 &filter, sizeof(filter)); 1374 1375 /* send updated bcast filtering configuration */ 1376 if (iwl_mvm_firmware_running(mvm) && 1377 mvm->dbgfs_bcast_filtering.override && 1378 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1379 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1380 sizeof(cmd), &cmd); 1381 mutex_unlock(&mvm->mutex); 1382 1383 return err ?: count; 1384 } 1385 1386 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1387 char __user *user_buf, 1388 size_t count, loff_t *ppos) 1389 { 1390 struct iwl_mvm *mvm = file->private_data; 1391 struct iwl_bcast_filter_cmd cmd; 1392 char *buf; 1393 int bufsz = 1024; 1394 int i, pos = 0; 1395 ssize_t ret; 1396 1397 buf = kzalloc(bufsz, GFP_KERNEL); 1398 if (!buf) 1399 return -ENOMEM; 1400 1401 mutex_lock(&mvm->mutex); 1402 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1403 ADD_TEXT("None\n"); 1404 mutex_unlock(&mvm->mutex); 1405 goto out; 1406 } 1407 mutex_unlock(&mvm->mutex); 1408 1409 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1410 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1411 1412 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1413 i, mac->default_discard, mac->attached_filters); 1414 } 1415 out: 1416 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1417 kfree(buf); 1418 return ret; 1419 } 1420 1421 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1422 char *buf, size_t count, 1423 loff_t *ppos) 1424 { 1425 struct iwl_bcast_filter_cmd cmd; 1426 struct iwl_fw_bcast_mac mac = {}; 1427 u32 mac_id, attached_filters; 1428 int err = 0; 1429 1430 if (!mvm->bcast_filters) 1431 return -ENOENT; 1432 1433 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1434 &attached_filters) != 3) 1435 return -EINVAL; 1436 1437 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1438 mac.default_discard > 1 || 1439 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1440 return -EINVAL; 1441 1442 mac.attached_filters = cpu_to_le16(attached_filters); 1443 1444 mutex_lock(&mvm->mutex); 1445 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1446 &mac, sizeof(mac)); 1447 1448 /* send updated bcast filtering configuration */ 1449 if (iwl_mvm_firmware_running(mvm) && 1450 mvm->dbgfs_bcast_filtering.override && 1451 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1452 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1453 sizeof(cmd), &cmd); 1454 mutex_unlock(&mvm->mutex); 1455 1456 return err ?: count; 1457 } 1458 #endif 1459 1460 #ifdef CONFIG_PM_SLEEP 1461 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1462 size_t count, loff_t *ppos) 1463 { 1464 int store; 1465 1466 if (sscanf(buf, "%d", &store) != 1) 1467 return -EINVAL; 1468 1469 mvm->store_d3_resume_sram = store; 1470 1471 return count; 1472 } 1473 1474 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1475 size_t count, loff_t *ppos) 1476 { 1477 struct iwl_mvm *mvm = file->private_data; 1478 const struct fw_img *img; 1479 int ofs, len, pos = 0; 1480 size_t bufsz, ret; 1481 char *buf; 1482 u8 *ptr = mvm->d3_resume_sram; 1483 1484 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1485 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1486 1487 bufsz = len * 4 + 256; 1488 buf = kzalloc(bufsz, GFP_KERNEL); 1489 if (!buf) 1490 return -ENOMEM; 1491 1492 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1493 mvm->store_d3_resume_sram ? "en" : "dis"); 1494 1495 if (ptr) { 1496 for (ofs = 0; ofs < len; ofs += 16) { 1497 pos += scnprintf(buf + pos, bufsz - pos, 1498 "0x%.4x %16ph\n", ofs, ptr + ofs); 1499 } 1500 } else { 1501 pos += scnprintf(buf + pos, bufsz - pos, 1502 "(no data captured)\n"); 1503 } 1504 1505 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1506 1507 kfree(buf); 1508 1509 return ret; 1510 } 1511 #endif 1512 1513 #define PRINT_MVM_REF(ref) do { \ 1514 if (mvm->refs[ref]) \ 1515 pos += scnprintf(buf + pos, bufsz - pos, \ 1516 "\t(0x%lx): %d %s\n", \ 1517 BIT(ref), mvm->refs[ref], #ref); \ 1518 } while (0) 1519 1520 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1521 char __user *user_buf, 1522 size_t count, loff_t *ppos) 1523 { 1524 struct iwl_mvm *mvm = file->private_data; 1525 int i, pos = 0; 1526 char buf[256]; 1527 const size_t bufsz = sizeof(buf); 1528 u32 refs = 0; 1529 1530 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1531 if (mvm->refs[i]) 1532 refs |= BIT(i); 1533 1534 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1535 refs); 1536 1537 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1538 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1539 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1540 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1541 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1542 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1543 PRINT_MVM_REF(IWL_MVM_REF_USER); 1544 PRINT_MVM_REF(IWL_MVM_REF_TX); 1545 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1546 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1547 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1548 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1549 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1550 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1551 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1552 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1553 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1554 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1555 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1556 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1557 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1558 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1559 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1560 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1561 PRINT_MVM_REF(IWL_MVM_REF_RX); 1562 1563 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1564 } 1565 1566 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1567 size_t count, loff_t *ppos) 1568 { 1569 unsigned long value; 1570 int ret; 1571 bool taken; 1572 1573 ret = kstrtoul(buf, 10, &value); 1574 if (ret < 0) 1575 return ret; 1576 1577 mutex_lock(&mvm->mutex); 1578 1579 taken = mvm->refs[IWL_MVM_REF_USER]; 1580 if (value == 1 && !taken) 1581 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1582 else if (value == 0 && taken) 1583 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1584 else 1585 ret = -EINVAL; 1586 1587 mutex_unlock(&mvm->mutex); 1588 1589 if (ret < 0) 1590 return ret; 1591 return count; 1592 } 1593 1594 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1595 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1596 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1597 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1598 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1599 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1600 &iwl_dbgfs_##name##_ops)) \ 1601 goto err; \ 1602 } while (0) 1603 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1604 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1605 1606 static ssize_t 1607 iwl_dbgfs_prph_reg_read(struct file *file, 1608 char __user *user_buf, 1609 size_t count, loff_t *ppos) 1610 { 1611 struct iwl_mvm *mvm = file->private_data; 1612 int pos = 0; 1613 char buf[32]; 1614 const size_t bufsz = sizeof(buf); 1615 int ret; 1616 1617 if (!mvm->dbgfs_prph_reg_addr) 1618 return -EINVAL; 1619 1620 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1621 if (ret) 1622 return ret; 1623 1624 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1625 mvm->dbgfs_prph_reg_addr, 1626 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1627 1628 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1629 1630 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1631 } 1632 1633 static ssize_t 1634 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1635 size_t count, loff_t *ppos) 1636 { 1637 u8 args; 1638 u32 value; 1639 int ret; 1640 1641 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1642 /* if we only want to set the reg address - nothing more to do */ 1643 if (args == 1) 1644 goto out; 1645 1646 /* otherwise, make sure we have both address and value */ 1647 if (args != 2) 1648 return -EINVAL; 1649 1650 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1651 if (ret) 1652 return ret; 1653 1654 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1655 1656 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1657 out: 1658 return count; 1659 } 1660 1661 static ssize_t 1662 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1663 size_t count, loff_t *ppos) 1664 { 1665 int ret; 1666 1667 if (!iwl_mvm_firmware_running(mvm)) 1668 return -EIO; 1669 1670 mutex_lock(&mvm->mutex); 1671 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1672 mutex_unlock(&mvm->mutex); 1673 1674 return ret ?: count; 1675 } 1676 1677 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1678 1679 /* Device wide debugfs entries */ 1680 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1681 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1682 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1683 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1684 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1685 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1686 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1687 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1688 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1689 MVM_DEBUGFS_READ_FILE_OPS(stations); 1690 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1691 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1692 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1693 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1694 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1695 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1696 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1697 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1698 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1699 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1700 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1701 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1702 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1703 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1704 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1705 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1706 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1707 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1708 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1709 1710 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1711 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1712 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1713 #endif 1714 1715 #ifdef CONFIG_PM_SLEEP 1716 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1717 #endif 1718 #ifdef CONFIG_ACPI 1719 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1720 #endif 1721 1722 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1723 size_t count, loff_t *ppos) 1724 { 1725 struct iwl_mvm *mvm = file->private_data; 1726 struct iwl_dbg_mem_access_cmd cmd = {}; 1727 struct iwl_dbg_mem_access_rsp *rsp; 1728 struct iwl_host_cmd hcmd = { 1729 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1730 .data = { &cmd, }, 1731 .len = { sizeof(cmd) }, 1732 }; 1733 size_t delta; 1734 ssize_t ret, len; 1735 1736 if (!iwl_mvm_firmware_running(mvm)) 1737 return -EIO; 1738 1739 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1740 DEBUG_GROUP, 0); 1741 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1742 1743 /* Take care of alignment of both the position and the length */ 1744 delta = *ppos & 0x3; 1745 cmd.addr = cpu_to_le32(*ppos - delta); 1746 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1747 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1748 1749 mutex_lock(&mvm->mutex); 1750 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1751 mutex_unlock(&mvm->mutex); 1752 1753 if (ret < 0) 1754 return ret; 1755 1756 rsp = (void *)hcmd.resp_pkt->data; 1757 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1758 ret = -ENXIO; 1759 goto out; 1760 } 1761 1762 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1763 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1764 len = min(len - delta, count); 1765 if (len < 0) { 1766 ret = -EFAULT; 1767 goto out; 1768 } 1769 1770 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1771 *ppos += ret; 1772 1773 out: 1774 iwl_free_resp(&hcmd); 1775 return ret; 1776 } 1777 1778 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1779 const char __user *user_buf, size_t count, 1780 loff_t *ppos) 1781 { 1782 struct iwl_mvm *mvm = file->private_data; 1783 struct iwl_dbg_mem_access_cmd *cmd; 1784 struct iwl_dbg_mem_access_rsp *rsp; 1785 struct iwl_host_cmd hcmd = {}; 1786 size_t cmd_size; 1787 size_t data_size; 1788 u32 op, len; 1789 ssize_t ret; 1790 1791 if (!iwl_mvm_firmware_running(mvm)) 1792 return -EIO; 1793 1794 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1795 DEBUG_GROUP, 0); 1796 1797 if (*ppos & 0x3 || count < 4) { 1798 op = DEBUG_MEM_OP_WRITE_BYTES; 1799 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1800 data_size = len; 1801 } else { 1802 op = DEBUG_MEM_OP_WRITE; 1803 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1804 data_size = len << 2; 1805 } 1806 1807 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1808 cmd = kzalloc(cmd_size, GFP_KERNEL); 1809 if (!cmd) 1810 return -ENOMEM; 1811 1812 cmd->op = cpu_to_le32(op); 1813 cmd->len = cpu_to_le32(len); 1814 cmd->addr = cpu_to_le32(*ppos); 1815 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1816 kfree(cmd); 1817 return -EFAULT; 1818 } 1819 1820 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1821 hcmd.data[0] = (void *)cmd; 1822 hcmd.len[0] = cmd_size; 1823 1824 mutex_lock(&mvm->mutex); 1825 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1826 mutex_unlock(&mvm->mutex); 1827 1828 kfree(cmd); 1829 1830 if (ret < 0) 1831 return ret; 1832 1833 rsp = (void *)hcmd.resp_pkt->data; 1834 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1835 ret = -ENXIO; 1836 goto out; 1837 } 1838 1839 ret = data_size; 1840 *ppos += ret; 1841 1842 out: 1843 iwl_free_resp(&hcmd); 1844 return ret; 1845 } 1846 1847 static const struct file_operations iwl_dbgfs_mem_ops = { 1848 .read = iwl_dbgfs_mem_read, 1849 .write = iwl_dbgfs_mem_write, 1850 .open = simple_open, 1851 .llseek = default_llseek, 1852 }; 1853 1854 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1855 { 1856 struct dentry *bcast_dir __maybe_unused; 1857 char buf[100]; 1858 1859 spin_lock_init(&mvm->drv_stats_lock); 1860 1861 mvm->debugfs_dir = dbgfs_dir; 1862 1863 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1864 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1865 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1866 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1867 S_IWUSR | S_IRUSR); 1868 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1869 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); 1870 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); 1871 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); 1872 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1873 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1874 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1875 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1876 S_IRUSR | S_IWUSR); 1877 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, S_IRUSR); 1878 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1879 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1880 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1881 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1882 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1883 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1884 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1885 S_IWUSR | S_IRUSR); 1886 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1887 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1888 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1889 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1890 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR); 1891 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1892 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1893 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); 1894 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); 1895 #ifdef CONFIG_ACPI 1896 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR); 1897 #endif 1898 1899 if (!debugfs_create_bool("enable_scan_iteration_notif", 1900 S_IRUSR | S_IWUSR, 1901 mvm->debugfs_dir, 1902 &mvm->scan_iter_notif_enabled)) 1903 goto err; 1904 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR, 1905 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 1906 goto err; 1907 1908 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1909 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1910 bcast_dir = debugfs_create_dir("bcast_filtering", 1911 mvm->debugfs_dir); 1912 if (!bcast_dir) 1913 goto err; 1914 1915 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1916 bcast_dir, 1917 &mvm->dbgfs_bcast_filtering.override)) 1918 goto err; 1919 1920 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1921 bcast_dir, S_IWUSR | S_IRUSR); 1922 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1923 bcast_dir, S_IWUSR | S_IRUSR); 1924 } 1925 #endif 1926 1927 #ifdef CONFIG_PM_SLEEP 1928 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1929 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1930 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1931 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1932 goto err; 1933 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 1934 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 1935 goto err; 1936 #endif 1937 1938 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 1939 mvm->debugfs_dir, &mvm->ps_disabled)) 1940 goto err; 1941 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 1942 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 1943 goto err; 1944 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 1945 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 1946 goto err; 1947 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 1948 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 1949 goto err; 1950 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 1951 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 1952 goto err; 1953 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 1954 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 1955 goto err; 1956 1957 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm, 1958 &iwl_dbgfs_mem_ops); 1959 1960 /* 1961 * Create a symlink with mac80211. It will be removed when mac80211 1962 * exists (before the opmode exists which removes the target.) 1963 */ 1964 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 1965 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 1966 goto err; 1967 1968 return 0; 1969 err: 1970 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 1971 return -ENOMEM; 1972 } 1973