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