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 * Copyright(c) 2018 Intel Corporation 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of version 2 of the GNU General Public License as 15 * published by the Free Software Foundation. 16 * 17 * This program is distributed in the hope that it will be useful, but 18 * WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 * General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 25 * USA 26 * 27 * The full GNU General Public License is included in this distribution 28 * in the file called COPYING. 29 * 30 * Contact Information: 31 * Intel Linux Wireless <linuxwifi@intel.com> 32 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 33 * 34 * BSD LICENSE 35 * 36 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 37 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 38 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 39 * Copyright(c) 2018 Intel Corporation 40 * All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 46 * * Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * * Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in 50 * the documentation and/or other materials provided with the 51 * distribution. 52 * * Neither the name Intel Corporation nor the names of its 53 * contributors may be used to endorse or promote products derived 54 * from this software without specific prior written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 57 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 58 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 59 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 60 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 61 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 62 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 66 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 * 68 *****************************************************************************/ 69 #include <linux/vmalloc.h> 70 #include <linux/ieee80211.h> 71 #include <linux/netdevice.h> 72 73 #include "mvm.h" 74 #include "sta.h" 75 #include "iwl-io.h" 76 #include "debugfs.h" 77 #include "fw/error-dump.h" 78 79 static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, 80 char __user *user_buf, 81 size_t count, loff_t *ppos) 82 { 83 struct iwl_mvm *mvm = file->private_data; 84 char buf[16]; 85 int pos, budget; 86 87 if (!iwl_mvm_is_ctdp_supported(mvm)) 88 return -EOPNOTSUPP; 89 90 if (!iwl_mvm_firmware_running(mvm) || 91 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 92 return -EIO; 93 94 mutex_lock(&mvm->mutex); 95 budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); 96 mutex_unlock(&mvm->mutex); 97 98 if (budget < 0) 99 return budget; 100 101 pos = scnprintf(buf, sizeof(buf), "%d\n", budget); 102 103 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 104 } 105 106 static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, 107 size_t count, loff_t *ppos) 108 { 109 int ret; 110 111 if (!iwl_mvm_is_ctdp_supported(mvm)) 112 return -EOPNOTSUPP; 113 114 if (!iwl_mvm_firmware_running(mvm) || 115 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 116 return -EIO; 117 118 mutex_lock(&mvm->mutex); 119 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); 120 mutex_unlock(&mvm->mutex); 121 122 return ret ?: count; 123 } 124 125 static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, 126 size_t count, loff_t *ppos) 127 { 128 if (!iwl_mvm_firmware_running(mvm) || 129 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 130 return -EIO; 131 132 iwl_mvm_enter_ctkill(mvm); 133 134 return count; 135 } 136 137 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 138 size_t count, loff_t *ppos) 139 { 140 int ret; 141 u32 flush_arg; 142 143 if (!iwl_mvm_firmware_running(mvm) || 144 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 145 return -EIO; 146 147 if (kstrtou32(buf, 0, &flush_arg)) 148 return -EINVAL; 149 150 if (iwl_mvm_has_new_tx_api(mvm)) { 151 IWL_DEBUG_TX_QUEUES(mvm, 152 "FLUSHING all tids queues on sta_id = %d\n", 153 flush_arg); 154 mutex_lock(&mvm->mutex); 155 ret = iwl_mvm_flush_sta_tids(mvm, flush_arg, 0xFF, 0) ? : count; 156 mutex_unlock(&mvm->mutex); 157 return ret; 158 } 159 160 IWL_DEBUG_TX_QUEUES(mvm, "FLUSHING queues mask to flush = 0x%x\n", 161 flush_arg); 162 163 mutex_lock(&mvm->mutex); 164 ret = iwl_mvm_flush_tx_path(mvm, flush_arg, 0) ? : count; 165 mutex_unlock(&mvm->mutex); 166 167 return ret; 168 } 169 170 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 171 size_t count, loff_t *ppos) 172 { 173 struct iwl_mvm_sta *mvmsta; 174 int sta_id, drain, ret; 175 176 if (!iwl_mvm_firmware_running(mvm) || 177 mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) 178 return -EIO; 179 180 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 181 return -EINVAL; 182 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) 183 return -EINVAL; 184 if (drain < 0 || drain > 1) 185 return -EINVAL; 186 187 mutex_lock(&mvm->mutex); 188 189 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 190 191 if (!mvmsta) 192 ret = -ENOENT; 193 else 194 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 195 196 mutex_unlock(&mvm->mutex); 197 198 return ret; 199 } 200 201 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 202 size_t count, loff_t *ppos) 203 { 204 struct iwl_mvm *mvm = file->private_data; 205 const struct fw_img *img; 206 unsigned int ofs, len; 207 size_t ret; 208 u8 *ptr; 209 210 if (!iwl_mvm_firmware_running(mvm)) 211 return -EINVAL; 212 213 /* default is to dump the entire data segment */ 214 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 215 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 216 len = img->sec[IWL_UCODE_SECTION_DATA].len; 217 218 if (mvm->dbgfs_sram_len) { 219 ofs = mvm->dbgfs_sram_offset; 220 len = mvm->dbgfs_sram_len; 221 } 222 223 ptr = kzalloc(len, GFP_KERNEL); 224 if (!ptr) 225 return -ENOMEM; 226 227 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 228 229 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 230 231 kfree(ptr); 232 233 return ret; 234 } 235 236 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 237 size_t count, loff_t *ppos) 238 { 239 const struct fw_img *img; 240 u32 offset, len; 241 u32 img_offset, img_len; 242 243 if (!iwl_mvm_firmware_running(mvm)) 244 return -EINVAL; 245 246 img = &mvm->fw->img[mvm->fwrt.cur_fw_img]; 247 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 248 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 249 250 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 251 if ((offset & 0x3) || (len & 0x3)) 252 return -EINVAL; 253 254 if (offset + len > img_offset + img_len) 255 return -EINVAL; 256 257 mvm->dbgfs_sram_offset = offset; 258 mvm->dbgfs_sram_len = len; 259 } else { 260 mvm->dbgfs_sram_offset = 0; 261 mvm->dbgfs_sram_len = 0; 262 } 263 264 return count; 265 } 266 267 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 268 char __user *user_buf, 269 size_t count, loff_t *ppos) 270 { 271 struct iwl_mvm *mvm = file->private_data; 272 char buf[16]; 273 int pos; 274 275 if (!mvm->temperature_test) 276 pos = scnprintf(buf , sizeof(buf), "disabled\n"); 277 else 278 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature); 279 280 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 281 } 282 283 /* 284 * Set NIC Temperature 285 * Cause the driver to ignore the actual NIC temperature reported by the FW 286 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 287 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 288 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 289 */ 290 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 291 char *buf, size_t count, 292 loff_t *ppos) 293 { 294 int temperature; 295 296 if (!iwl_mvm_firmware_running(mvm) && !mvm->temperature_test) 297 return -EIO; 298 299 if (kstrtoint(buf, 10, &temperature)) 300 return -EINVAL; 301 /* not a legal temperature */ 302 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 303 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 304 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 305 return -EINVAL; 306 307 mutex_lock(&mvm->mutex); 308 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 309 if (!mvm->temperature_test) 310 goto out; 311 312 mvm->temperature_test = false; 313 /* Since we can't read the temp while awake, just set 314 * it to zero until we get the next RX stats from the 315 * firmware. 316 */ 317 mvm->temperature = 0; 318 } else { 319 mvm->temperature_test = true; 320 mvm->temperature = temperature; 321 } 322 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 323 mvm->temperature_test ? "En" : "Dis" , 324 mvm->temperature); 325 /* handle the temperature change */ 326 iwl_mvm_tt_handler(mvm); 327 328 out: 329 mutex_unlock(&mvm->mutex); 330 331 return count; 332 } 333 334 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 335 char __user *user_buf, 336 size_t count, loff_t *ppos) 337 { 338 struct iwl_mvm *mvm = file->private_data; 339 char buf[16]; 340 int pos, ret; 341 s32 temp; 342 343 if (!iwl_mvm_firmware_running(mvm)) 344 return -EIO; 345 346 mutex_lock(&mvm->mutex); 347 ret = iwl_mvm_get_temp(mvm, &temp); 348 mutex_unlock(&mvm->mutex); 349 350 if (ret) 351 return -EIO; 352 353 pos = scnprintf(buf , sizeof(buf), "%d\n", temp); 354 355 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 356 } 357 358 #ifdef CONFIG_ACPI 359 static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file, 360 char __user *user_buf, 361 size_t count, loff_t *ppos) 362 { 363 struct iwl_mvm *mvm = file->private_data; 364 char buf[256]; 365 int pos = 0; 366 int bufsz = sizeof(buf); 367 int tbl_idx; 368 u8 *value; 369 370 if (!iwl_mvm_firmware_running(mvm)) 371 return -EIO; 372 373 mutex_lock(&mvm->mutex); 374 tbl_idx = iwl_mvm_get_sar_geo_profile(mvm); 375 if (tbl_idx < 0) { 376 mutex_unlock(&mvm->mutex); 377 return tbl_idx; 378 } 379 380 if (!tbl_idx) { 381 pos = scnprintf(buf, bufsz, 382 "SAR geographic profile disabled\n"); 383 } else { 384 value = &mvm->geo_profiles[tbl_idx - 1].values[0]; 385 386 pos += scnprintf(buf + pos, bufsz - pos, 387 "Use geographic profile %d\n", tbl_idx); 388 pos += scnprintf(buf + pos, bufsz - pos, 389 "2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 390 value[1], value[2], value[0]); 391 pos += scnprintf(buf + pos, bufsz - pos, 392 "5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n", 393 value[4], value[5], value[3]); 394 } 395 mutex_unlock(&mvm->mutex); 396 397 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 398 } 399 #endif 400 401 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 402 size_t count, loff_t *ppos) 403 { 404 struct iwl_mvm *mvm = file->private_data; 405 struct ieee80211_sta *sta; 406 char buf[400]; 407 int i, pos = 0, bufsz = sizeof(buf); 408 409 mutex_lock(&mvm->mutex); 410 411 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 412 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 413 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 414 lockdep_is_held(&mvm->mutex)); 415 if (!sta) 416 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 417 else if (IS_ERR(sta)) 418 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 419 PTR_ERR(sta)); 420 else 421 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 422 sta->addr); 423 } 424 425 mutex_unlock(&mvm->mutex); 426 427 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 428 } 429 430 static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf, 431 size_t count, loff_t *ppos) 432 { 433 struct ieee80211_sta *sta = file->private_data; 434 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 435 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 436 struct iwl_mvm *mvm = lq_sta->pers.drv; 437 static const size_t bufsz = 2048; 438 char *buff; 439 int desc = 0; 440 ssize_t ret; 441 442 buff = kmalloc(bufsz, GFP_KERNEL); 443 if (!buff) 444 return -ENOMEM; 445 446 mutex_lock(&mvm->mutex); 447 448 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 449 lq_sta->pers.sta_id); 450 desc += scnprintf(buff + desc, bufsz - desc, 451 "fixed rate 0x%X\n", 452 lq_sta->pers.dbg_fixed_rate); 453 desc += scnprintf(buff + desc, bufsz - desc, 454 "A-MPDU size limit %d\n", 455 lq_sta->pers.dbg_agg_frame_count_lim); 456 desc += scnprintf(buff + desc, bufsz - desc, 457 "valid_tx_ant %s%s%s\n", 458 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 459 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "", 460 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : ""); 461 desc += scnprintf(buff + desc, bufsz - desc, 462 "last tx rate=0x%X ", 463 lq_sta->last_rate_n_flags); 464 465 desc += rs_pretty_print_rate(buff + desc, bufsz - desc, 466 lq_sta->last_rate_n_flags); 467 mutex_unlock(&mvm->mutex); 468 469 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 470 kfree(buff); 471 return ret; 472 } 473 474 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 475 char __user *user_buf, 476 size_t count, loff_t *ppos) 477 { 478 struct iwl_mvm *mvm = file->private_data; 479 char buf[64]; 480 int bufsz = sizeof(buf); 481 int pos = 0; 482 483 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 484 mvm->disable_power_off); 485 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 486 mvm->disable_power_off_d3); 487 488 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 489 } 490 491 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 492 size_t count, loff_t *ppos) 493 { 494 int ret, val; 495 496 if (!iwl_mvm_firmware_running(mvm)) 497 return -EIO; 498 499 if (!strncmp("disable_power_off_d0=", buf, 21)) { 500 if (sscanf(buf + 21, "%d", &val) != 1) 501 return -EINVAL; 502 mvm->disable_power_off = val; 503 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 504 if (sscanf(buf + 21, "%d", &val) != 1) 505 return -EINVAL; 506 mvm->disable_power_off_d3 = val; 507 } else { 508 return -EINVAL; 509 } 510 511 mutex_lock(&mvm->mutex); 512 ret = iwl_mvm_power_update_device(mvm); 513 mutex_unlock(&mvm->mutex); 514 515 return ret ?: count; 516 } 517 518 static 519 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 520 int pos, int bufsz) 521 { 522 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 523 524 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 525 BT_MBOX_PRINT(0, LE_PROF1, false); 526 BT_MBOX_PRINT(0, LE_PROF2, false); 527 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 528 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 529 BT_MBOX_PRINT(0, INBAND_S, false); 530 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 531 BT_MBOX_PRINT(0, LE_SCAN, false); 532 BT_MBOX_PRINT(0, LE_ADV, false); 533 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 534 BT_MBOX_PRINT(0, OPEN_CON_1, true); 535 536 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 537 538 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 539 BT_MBOX_PRINT(1, IP_SR, false); 540 BT_MBOX_PRINT(1, LE_MSTR, false); 541 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 542 BT_MBOX_PRINT(1, MSG_TYPE, false); 543 BT_MBOX_PRINT(1, SSN, true); 544 545 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 546 547 BT_MBOX_PRINT(2, SNIFF_ACT, false); 548 BT_MBOX_PRINT(2, PAG, false); 549 BT_MBOX_PRINT(2, INQUIRY, false); 550 BT_MBOX_PRINT(2, CONN, false); 551 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 552 BT_MBOX_PRINT(2, DISC, false); 553 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 554 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 555 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 556 BT_MBOX_PRINT(2, SCO_DURATION, true); 557 558 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 559 560 BT_MBOX_PRINT(3, SCO_STATE, false); 561 BT_MBOX_PRINT(3, SNIFF_STATE, false); 562 BT_MBOX_PRINT(3, A2DP_STATE, false); 563 BT_MBOX_PRINT(3, A2DP_SRC, false); 564 BT_MBOX_PRINT(3, ACL_STATE, false); 565 BT_MBOX_PRINT(3, MSTR_STATE, false); 566 BT_MBOX_PRINT(3, OBX_STATE, false); 567 BT_MBOX_PRINT(3, OPEN_CON_2, false); 568 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 569 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 570 BT_MBOX_PRINT(3, INBAND_P, false); 571 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 572 BT_MBOX_PRINT(3, SSN_2, false); 573 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 574 575 return pos; 576 } 577 578 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 579 size_t count, loff_t *ppos) 580 { 581 struct iwl_mvm *mvm = file->private_data; 582 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 583 char *buf; 584 int ret, pos = 0, bufsz = sizeof(char) * 1024; 585 586 buf = kmalloc(bufsz, GFP_KERNEL); 587 if (!buf) 588 return -ENOMEM; 589 590 mutex_lock(&mvm->mutex); 591 592 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 593 594 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 595 notif->bt_ci_compliance); 596 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 597 le32_to_cpu(notif->primary_ch_lut)); 598 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 599 le32_to_cpu(notif->secondary_ch_lut)); 600 pos += scnprintf(buf + pos, 601 bufsz - pos, "bt_activity_grading = %d\n", 602 le32_to_cpu(notif->bt_activity_grading)); 603 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 604 notif->rrc_status & 0xF); 605 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 606 notif->ttc_status & 0xF); 607 608 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 609 IWL_MVM_BT_COEX_SYNC2SCO); 610 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 611 IWL_MVM_BT_COEX_MPLUT); 612 613 mutex_unlock(&mvm->mutex); 614 615 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 616 kfree(buf); 617 618 return ret; 619 } 620 #undef BT_MBOX_PRINT 621 622 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 623 size_t count, loff_t *ppos) 624 { 625 struct iwl_mvm *mvm = file->private_data; 626 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 627 char buf[256]; 628 int bufsz = sizeof(buf); 629 int pos = 0; 630 631 mutex_lock(&mvm->mutex); 632 633 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 634 pos += scnprintf(buf + pos, bufsz - pos, 635 "\tPrimary Channel Bitmap 0x%016llx\n", 636 le64_to_cpu(cmd->bt_primary_ci)); 637 pos += scnprintf(buf + pos, bufsz - pos, 638 "\tSecondary Channel Bitmap 0x%016llx\n", 639 le64_to_cpu(cmd->bt_secondary_ci)); 640 641 mutex_unlock(&mvm->mutex); 642 643 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 644 } 645 646 static ssize_t 647 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 648 size_t count, loff_t *ppos) 649 { 650 u32 bt_tx_prio; 651 652 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 653 return -EINVAL; 654 if (bt_tx_prio > 4) 655 return -EINVAL; 656 657 mvm->bt_tx_prio = bt_tx_prio; 658 659 return count; 660 } 661 662 static ssize_t 663 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 664 size_t count, loff_t *ppos) 665 { 666 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 667 [BT_FORCE_ANT_DIS] = "dis", 668 [BT_FORCE_ANT_AUTO] = "auto", 669 [BT_FORCE_ANT_BT] = "bt", 670 [BT_FORCE_ANT_WIFI] = "wifi", 671 }; 672 int ret, bt_force_ant_mode; 673 674 for (bt_force_ant_mode = 0; 675 bt_force_ant_mode < ARRAY_SIZE(modes_str); 676 bt_force_ant_mode++) { 677 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 678 break; 679 } 680 681 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 682 return -EINVAL; 683 684 ret = 0; 685 mutex_lock(&mvm->mutex); 686 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 687 goto out; 688 689 mvm->bt_force_ant_mode = bt_force_ant_mode; 690 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 691 modes_str[mvm->bt_force_ant_mode]); 692 693 if (iwl_mvm_firmware_running(mvm)) 694 ret = iwl_mvm_send_bt_init_conf(mvm); 695 else 696 ret = 0; 697 698 out: 699 mutex_unlock(&mvm->mutex); 700 return ret ?: count; 701 } 702 703 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 704 size_t count, loff_t *ppos) 705 { 706 struct iwl_mvm *mvm = file->private_data; 707 char *buff, *pos, *endpos; 708 static const size_t bufsz = 1024; 709 int ret; 710 711 buff = kmalloc(bufsz, GFP_KERNEL); 712 if (!buff) 713 return -ENOMEM; 714 715 pos = buff; 716 endpos = pos + bufsz; 717 718 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 719 mvm->trans->cfg->fw_name_pre); 720 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 721 mvm->fwrt.fw->human_readable); 722 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 723 mvm->fwrt.trans->cfg->name); 724 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 725 mvm->fwrt.dev->bus->name); 726 727 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 728 kfree(buff); 729 730 return ret; 731 } 732 733 #define PRINT_STATS_LE32(_struct, _memb) \ 734 pos += scnprintf(buf + pos, bufsz - pos, \ 735 fmt_table, #_memb, \ 736 le32_to_cpu(_struct->_memb)) 737 738 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 739 char __user *user_buf, size_t count, 740 loff_t *ppos) 741 { 742 struct iwl_mvm *mvm = file->private_data; 743 static const char *fmt_table = "\t%-30s %10u\n"; 744 static const char *fmt_header = "%-32s\n"; 745 int pos = 0; 746 char *buf; 747 int ret; 748 size_t bufsz; 749 750 if (iwl_mvm_has_new_rx_stats_api(mvm)) 751 bufsz = ((sizeof(struct mvm_statistics_rx) / 752 sizeof(__le32)) * 43) + (4 * 33) + 1; 753 else 754 /* 43 = size of each data line; 33 = size of each header */ 755 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 756 sizeof(__le32)) * 43) + (4 * 33) + 1; 757 758 buf = kzalloc(bufsz, GFP_KERNEL); 759 if (!buf) 760 return -ENOMEM; 761 762 mutex_lock(&mvm->mutex); 763 764 if (iwl_mvm_firmware_running(mvm)) 765 iwl_mvm_request_statistics(mvm, false); 766 767 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 768 "Statistics_Rx - OFDM"); 769 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 770 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 771 772 PRINT_STATS_LE32(ofdm, ina_cnt); 773 PRINT_STATS_LE32(ofdm, fina_cnt); 774 PRINT_STATS_LE32(ofdm, plcp_err); 775 PRINT_STATS_LE32(ofdm, crc32_err); 776 PRINT_STATS_LE32(ofdm, overrun_err); 777 PRINT_STATS_LE32(ofdm, early_overrun_err); 778 PRINT_STATS_LE32(ofdm, crc32_good); 779 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 780 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 781 PRINT_STATS_LE32(ofdm, sfd_timeout); 782 PRINT_STATS_LE32(ofdm, fina_timeout); 783 PRINT_STATS_LE32(ofdm, unresponded_rts); 784 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 785 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 786 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 787 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 788 PRINT_STATS_LE32(ofdm, dsp_self_kill); 789 PRINT_STATS_LE32(ofdm, mh_format_err); 790 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 791 PRINT_STATS_LE32(ofdm, reserved); 792 } else { 793 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 794 795 PRINT_STATS_LE32(ofdm, unresponded_rts); 796 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 797 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 798 PRINT_STATS_LE32(ofdm, dsp_self_kill); 799 PRINT_STATS_LE32(ofdm, reserved); 800 } 801 802 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 803 "Statistics_Rx - CCK"); 804 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 805 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 806 807 PRINT_STATS_LE32(cck, ina_cnt); 808 PRINT_STATS_LE32(cck, fina_cnt); 809 PRINT_STATS_LE32(cck, plcp_err); 810 PRINT_STATS_LE32(cck, crc32_err); 811 PRINT_STATS_LE32(cck, overrun_err); 812 PRINT_STATS_LE32(cck, early_overrun_err); 813 PRINT_STATS_LE32(cck, crc32_good); 814 PRINT_STATS_LE32(cck, false_alarm_cnt); 815 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 816 PRINT_STATS_LE32(cck, sfd_timeout); 817 PRINT_STATS_LE32(cck, fina_timeout); 818 PRINT_STATS_LE32(cck, unresponded_rts); 819 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 820 PRINT_STATS_LE32(cck, sent_ack_cnt); 821 PRINT_STATS_LE32(cck, sent_cts_cnt); 822 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 823 PRINT_STATS_LE32(cck, dsp_self_kill); 824 PRINT_STATS_LE32(cck, mh_format_err); 825 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 826 PRINT_STATS_LE32(cck, reserved); 827 } else { 828 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 829 830 PRINT_STATS_LE32(cck, unresponded_rts); 831 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 832 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 833 PRINT_STATS_LE32(cck, dsp_self_kill); 834 PRINT_STATS_LE32(cck, reserved); 835 } 836 837 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 838 "Statistics_Rx - GENERAL"); 839 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 840 struct mvm_statistics_rx_non_phy_v3 *general = 841 &mvm->rx_stats_v3.general; 842 843 PRINT_STATS_LE32(general, bogus_cts); 844 PRINT_STATS_LE32(general, bogus_ack); 845 PRINT_STATS_LE32(general, non_bssid_frames); 846 PRINT_STATS_LE32(general, filtered_frames); 847 PRINT_STATS_LE32(general, non_channel_beacons); 848 PRINT_STATS_LE32(general, channel_beacons); 849 PRINT_STATS_LE32(general, num_missed_bcon); 850 PRINT_STATS_LE32(general, adc_rx_saturation_time); 851 PRINT_STATS_LE32(general, ina_detection_search_time); 852 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 853 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 854 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 855 PRINT_STATS_LE32(general, interference_data_flag); 856 PRINT_STATS_LE32(general, channel_load); 857 PRINT_STATS_LE32(general, dsp_false_alarms); 858 PRINT_STATS_LE32(general, beacon_rssi_a); 859 PRINT_STATS_LE32(general, beacon_rssi_b); 860 PRINT_STATS_LE32(general, beacon_rssi_c); 861 PRINT_STATS_LE32(general, beacon_energy_a); 862 PRINT_STATS_LE32(general, beacon_energy_b); 863 PRINT_STATS_LE32(general, beacon_energy_c); 864 PRINT_STATS_LE32(general, num_bt_kills); 865 PRINT_STATS_LE32(general, mac_id); 866 PRINT_STATS_LE32(general, directed_data_mpdu); 867 } else { 868 struct mvm_statistics_rx_non_phy *general = 869 &mvm->rx_stats.general; 870 871 PRINT_STATS_LE32(general, bogus_cts); 872 PRINT_STATS_LE32(general, bogus_ack); 873 PRINT_STATS_LE32(general, non_channel_beacons); 874 PRINT_STATS_LE32(general, channel_beacons); 875 PRINT_STATS_LE32(general, num_missed_bcon); 876 PRINT_STATS_LE32(general, adc_rx_saturation_time); 877 PRINT_STATS_LE32(general, ina_detection_search_time); 878 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 879 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 880 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 881 PRINT_STATS_LE32(general, interference_data_flag); 882 PRINT_STATS_LE32(general, channel_load); 883 PRINT_STATS_LE32(general, beacon_rssi_a); 884 PRINT_STATS_LE32(general, beacon_rssi_b); 885 PRINT_STATS_LE32(general, beacon_rssi_c); 886 PRINT_STATS_LE32(general, beacon_energy_a); 887 PRINT_STATS_LE32(general, beacon_energy_b); 888 PRINT_STATS_LE32(general, beacon_energy_c); 889 PRINT_STATS_LE32(general, num_bt_kills); 890 PRINT_STATS_LE32(general, mac_id); 891 } 892 893 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 894 "Statistics_Rx - HT"); 895 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 896 struct mvm_statistics_rx_ht_phy_v1 *ht = 897 &mvm->rx_stats_v3.ofdm_ht; 898 899 PRINT_STATS_LE32(ht, plcp_err); 900 PRINT_STATS_LE32(ht, overrun_err); 901 PRINT_STATS_LE32(ht, early_overrun_err); 902 PRINT_STATS_LE32(ht, crc32_good); 903 PRINT_STATS_LE32(ht, crc32_err); 904 PRINT_STATS_LE32(ht, mh_format_err); 905 PRINT_STATS_LE32(ht, agg_crc32_good); 906 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 907 PRINT_STATS_LE32(ht, agg_cnt); 908 PRINT_STATS_LE32(ht, unsupport_mcs); 909 } else { 910 struct mvm_statistics_rx_ht_phy *ht = 911 &mvm->rx_stats.ofdm_ht; 912 913 PRINT_STATS_LE32(ht, mh_format_err); 914 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 915 PRINT_STATS_LE32(ht, agg_cnt); 916 PRINT_STATS_LE32(ht, unsupport_mcs); 917 } 918 919 mutex_unlock(&mvm->mutex); 920 921 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 922 kfree(buf); 923 924 return ret; 925 } 926 #undef PRINT_STAT_LE32 927 928 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 929 char __user *user_buf, size_t count, 930 loff_t *ppos, 931 struct iwl_mvm_frame_stats *stats) 932 { 933 char *buff, *pos, *endpos; 934 int idx, i; 935 int ret; 936 static const size_t bufsz = 1024; 937 938 buff = kmalloc(bufsz, GFP_KERNEL); 939 if (!buff) 940 return -ENOMEM; 941 942 spin_lock_bh(&mvm->drv_stats_lock); 943 944 pos = buff; 945 endpos = pos + bufsz; 946 947 pos += scnprintf(pos, endpos - pos, 948 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 949 stats->legacy_frames, 950 stats->ht_frames, 951 stats->vht_frames); 952 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 953 stats->bw_20_frames, 954 stats->bw_40_frames, 955 stats->bw_80_frames); 956 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 957 stats->ngi_frames, 958 stats->sgi_frames); 959 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 960 stats->siso_frames, 961 stats->mimo2_frames); 962 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 963 stats->fail_frames, 964 stats->success_frames); 965 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 966 stats->agg_frames); 967 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 968 stats->ampdu_count); 969 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 970 stats->ampdu_count > 0 ? 971 (stats->agg_frames / stats->ampdu_count) : 0); 972 973 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 974 975 idx = stats->last_frame_idx - 1; 976 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 977 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 978 if (stats->last_rates[idx] == 0) 979 continue; 980 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 981 (int)(ARRAY_SIZE(stats->last_rates) - i)); 982 pos += rs_pretty_print_rate(pos, endpos - pos, 983 stats->last_rates[idx]); 984 } 985 spin_unlock_bh(&mvm->drv_stats_lock); 986 987 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 988 kfree(buff); 989 990 return ret; 991 } 992 993 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 994 char __user *user_buf, size_t count, 995 loff_t *ppos) 996 { 997 struct iwl_mvm *mvm = file->private_data; 998 999 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 1000 &mvm->drv_rx_stats); 1001 } 1002 1003 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 1004 size_t count, loff_t *ppos) 1005 { 1006 int __maybe_unused ret; 1007 1008 if (!iwl_mvm_firmware_running(mvm)) 1009 return -EIO; 1010 1011 mutex_lock(&mvm->mutex); 1012 1013 /* allow one more restart that we're provoking here */ 1014 if (mvm->fw_restart >= 0) 1015 mvm->fw_restart++; 1016 1017 /* take the return value to make compiler happy - it will fail anyway */ 1018 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 1019 1020 mutex_unlock(&mvm->mutex); 1021 1022 return count; 1023 } 1024 1025 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1026 size_t count, loff_t *ppos) 1027 { 1028 int ret; 1029 1030 if (!iwl_mvm_firmware_running(mvm)) 1031 return -EIO; 1032 1033 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 1034 if (ret) 1035 return ret; 1036 1037 iwl_force_nmi(mvm->trans); 1038 1039 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 1040 1041 return count; 1042 } 1043 1044 static ssize_t 1045 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1046 char __user *user_buf, 1047 size_t count, loff_t *ppos) 1048 { 1049 struct iwl_mvm *mvm = file->private_data; 1050 int pos = 0; 1051 char buf[32]; 1052 const size_t bufsz = sizeof(buf); 1053 1054 /* print which antennas were set for the scan command by the user */ 1055 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1056 if (mvm->scan_rx_ant & ANT_A) 1057 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1058 if (mvm->scan_rx_ant & ANT_B) 1059 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1060 if (mvm->scan_rx_ant & ANT_C) 1061 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1062 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1063 1064 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1065 } 1066 1067 static ssize_t 1068 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1069 size_t count, loff_t *ppos) 1070 { 1071 u8 scan_rx_ant; 1072 1073 if (!iwl_mvm_firmware_running(mvm)) 1074 return -EIO; 1075 1076 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1077 return -EINVAL; 1078 if (scan_rx_ant > ANT_ABC) 1079 return -EINVAL; 1080 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1081 return -EINVAL; 1082 1083 if (mvm->scan_rx_ant != scan_rx_ant) { 1084 mvm->scan_rx_ant = scan_rx_ant; 1085 if (fw_has_capa(&mvm->fw->ucode_capa, 1086 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1087 iwl_mvm_config_scan(mvm); 1088 } 1089 1090 return count; 1091 } 1092 1093 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1094 char *buf, size_t count, 1095 loff_t *ppos) 1096 { 1097 struct iwl_rss_config_cmd cmd = { 1098 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1099 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1100 IWL_RSS_HASH_TYPE_IPV4_UDP | 1101 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1102 IWL_RSS_HASH_TYPE_IPV6_TCP | 1103 IWL_RSS_HASH_TYPE_IPV6_UDP | 1104 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1105 }; 1106 int ret, i, num_repeats, nbytes = count / 2; 1107 1108 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1109 if (ret) 1110 return ret; 1111 1112 /* 1113 * The input is the redirection table, partial or full. 1114 * Repeat the pattern if needed. 1115 * For example, input of 01020F will be repeated 42 times, 1116 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1117 * queues 3 - 14). 1118 */ 1119 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1120 for (i = 1; i < num_repeats; i++) 1121 memcpy(&cmd.indirection_table[i * nbytes], 1122 cmd.indirection_table, nbytes); 1123 /* handle cut in the middle pattern for the last places */ 1124 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1125 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1126 1127 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1128 1129 mutex_lock(&mvm->mutex); 1130 if (iwl_mvm_firmware_running(mvm)) 1131 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1132 sizeof(cmd), &cmd); 1133 else 1134 ret = 0; 1135 mutex_unlock(&mvm->mutex); 1136 1137 return ret ?: count; 1138 } 1139 1140 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1141 char *buf, size_t count, 1142 loff_t *ppos) 1143 { 1144 struct iwl_rx_cmd_buffer rxb = { 1145 ._rx_page_order = 0, 1146 .truesize = 0, /* not used */ 1147 ._offset = 0, 1148 }; 1149 struct iwl_rx_packet *pkt; 1150 struct iwl_rx_mpdu_desc *desc; 1151 int bin_len = count / 2; 1152 int ret = -EINVAL; 1153 size_t mpdu_cmd_hdr_size = 1154 (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) ? 1155 sizeof(struct iwl_rx_mpdu_desc) : 1156 IWL_RX_DESC_SIZE_V1; 1157 1158 if (!iwl_mvm_firmware_running(mvm)) 1159 return -EIO; 1160 1161 /* supporting only 9000 descriptor */ 1162 if (!mvm->trans->cfg->mq_rx_supported) 1163 return -ENOTSUPP; 1164 1165 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1166 if (!rxb._page) 1167 return -ENOMEM; 1168 pkt = rxb_addr(&rxb); 1169 1170 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1171 if (ret) 1172 goto out; 1173 1174 /* avoid invalid memory access */ 1175 if (bin_len < sizeof(*pkt) + mpdu_cmd_hdr_size) 1176 goto out; 1177 1178 /* check this is RX packet */ 1179 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1180 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1181 goto out; 1182 1183 /* check the length in metadata matches actual received length */ 1184 desc = (void *)pkt->data; 1185 if (le16_to_cpu(desc->mpdu_len) != 1186 (bin_len - mpdu_cmd_hdr_size - sizeof(*pkt))) 1187 goto out; 1188 1189 local_bh_disable(); 1190 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1191 local_bh_enable(); 1192 ret = 0; 1193 1194 out: 1195 iwl_free_rxb(&rxb); 1196 1197 return ret ?: count; 1198 } 1199 1200 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1201 char __user *user_buf, 1202 size_t count, loff_t *ppos) 1203 { 1204 struct iwl_mvm *mvm = file->private_data; 1205 int conf; 1206 char buf[8]; 1207 const size_t bufsz = sizeof(buf); 1208 int pos = 0; 1209 1210 mutex_lock(&mvm->mutex); 1211 conf = mvm->fwrt.dump.conf; 1212 mutex_unlock(&mvm->mutex); 1213 1214 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1215 1216 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1217 } 1218 1219 /* 1220 * Enable / Disable continuous recording. 1221 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1222 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1223 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1224 */ 1225 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1226 char *buf, size_t count, 1227 loff_t *ppos) 1228 { 1229 struct iwl_trans *trans = mvm->trans; 1230 const struct iwl_fw_dbg_dest_tlv_v1 *dest = trans->dbg_dest_tlv; 1231 struct iwl_continuous_record_cmd cont_rec = {}; 1232 int ret, rec_mode; 1233 1234 if (!iwl_mvm_firmware_running(mvm)) 1235 return -EIO; 1236 1237 if (!dest) 1238 return -EOPNOTSUPP; 1239 1240 if (dest->monitor_mode != SMEM_MODE || 1241 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1242 return -EOPNOTSUPP; 1243 1244 ret = kstrtoint(buf, 0, &rec_mode); 1245 if (ret) 1246 return ret; 1247 1248 cont_rec.record_mode.enable_recording = rec_mode ? 1249 cpu_to_le16(ENABLE_CONT_RECORDING) : 1250 cpu_to_le16(DISABLE_CONT_RECORDING); 1251 1252 mutex_lock(&mvm->mutex); 1253 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1254 sizeof(cont_rec), &cont_rec); 1255 mutex_unlock(&mvm->mutex); 1256 1257 return ret ?: count; 1258 } 1259 1260 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1261 char *buf, size_t count, 1262 loff_t *ppos) 1263 { 1264 unsigned int conf_id; 1265 int ret; 1266 1267 if (!iwl_mvm_firmware_running(mvm)) 1268 return -EIO; 1269 1270 ret = kstrtouint(buf, 0, &conf_id); 1271 if (ret) 1272 return ret; 1273 1274 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1275 return -EINVAL; 1276 1277 mutex_lock(&mvm->mutex); 1278 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1279 mutex_unlock(&mvm->mutex); 1280 1281 return ret ?: count; 1282 } 1283 1284 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1285 char *buf, size_t count, 1286 loff_t *ppos) 1287 { 1288 int ret; 1289 1290 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1291 if (ret) 1292 return ret; 1293 if (count == 0) 1294 return 0; 1295 1296 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1297 (count - 1), NULL); 1298 1299 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1300 1301 return count; 1302 } 1303 1304 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1305 char *buf, size_t count, 1306 loff_t *ppos) 1307 { 1308 unsigned int max_amsdu_len; 1309 int ret; 1310 1311 ret = kstrtouint(buf, 0, &max_amsdu_len); 1312 if (ret) 1313 return ret; 1314 1315 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1316 return -EINVAL; 1317 mvm->max_amsdu_len = max_amsdu_len; 1318 1319 return count; 1320 } 1321 1322 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1323 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1324 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1325 char __user *user_buf, 1326 size_t count, loff_t *ppos) 1327 { 1328 struct iwl_mvm *mvm = file->private_data; 1329 struct iwl_bcast_filter_cmd cmd; 1330 const struct iwl_fw_bcast_filter *filter; 1331 char *buf; 1332 int bufsz = 1024; 1333 int i, j, pos = 0; 1334 ssize_t ret; 1335 1336 buf = kzalloc(bufsz, GFP_KERNEL); 1337 if (!buf) 1338 return -ENOMEM; 1339 1340 mutex_lock(&mvm->mutex); 1341 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1342 ADD_TEXT("None\n"); 1343 mutex_unlock(&mvm->mutex); 1344 goto out; 1345 } 1346 mutex_unlock(&mvm->mutex); 1347 1348 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1349 filter = &cmd.filters[i]; 1350 1351 ADD_TEXT("Filter [%d]:\n", i); 1352 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1353 ADD_TEXT("\tFrame Type: %s\n", 1354 filter->frame_type ? "IPv4" : "Generic"); 1355 1356 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1357 const struct iwl_fw_bcast_filter_attr *attr; 1358 1359 attr = &filter->attrs[j]; 1360 if (!attr->mask) 1361 break; 1362 1363 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1364 j, attr->offset, 1365 attr->offset_type ? "IP End" : 1366 "Payload Start", 1367 be32_to_cpu(attr->mask), 1368 be32_to_cpu(attr->val), 1369 le16_to_cpu(attr->reserved1)); 1370 } 1371 } 1372 out: 1373 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1374 kfree(buf); 1375 return ret; 1376 } 1377 1378 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1379 size_t count, loff_t *ppos) 1380 { 1381 int pos, next_pos; 1382 struct iwl_fw_bcast_filter filter = {}; 1383 struct iwl_bcast_filter_cmd cmd; 1384 u32 filter_id, attr_id, mask, value; 1385 int err = 0; 1386 1387 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1388 &filter.frame_type, &pos) != 3) 1389 return -EINVAL; 1390 1391 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1392 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1393 return -EINVAL; 1394 1395 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1396 attr_id++) { 1397 struct iwl_fw_bcast_filter_attr *attr = 1398 &filter.attrs[attr_id]; 1399 1400 if (pos >= count) 1401 break; 1402 1403 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1404 &attr->offset, &attr->offset_type, 1405 &mask, &value, &next_pos) != 4) 1406 return -EINVAL; 1407 1408 attr->mask = cpu_to_be32(mask); 1409 attr->val = cpu_to_be32(value); 1410 if (mask) 1411 filter.num_attrs++; 1412 1413 pos += next_pos; 1414 } 1415 1416 mutex_lock(&mvm->mutex); 1417 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1418 &filter, sizeof(filter)); 1419 1420 /* send updated bcast filtering configuration */ 1421 if (iwl_mvm_firmware_running(mvm) && 1422 mvm->dbgfs_bcast_filtering.override && 1423 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1424 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1425 sizeof(cmd), &cmd); 1426 mutex_unlock(&mvm->mutex); 1427 1428 return err ?: count; 1429 } 1430 1431 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1432 char __user *user_buf, 1433 size_t count, loff_t *ppos) 1434 { 1435 struct iwl_mvm *mvm = file->private_data; 1436 struct iwl_bcast_filter_cmd cmd; 1437 char *buf; 1438 int bufsz = 1024; 1439 int i, pos = 0; 1440 ssize_t ret; 1441 1442 buf = kzalloc(bufsz, GFP_KERNEL); 1443 if (!buf) 1444 return -ENOMEM; 1445 1446 mutex_lock(&mvm->mutex); 1447 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1448 ADD_TEXT("None\n"); 1449 mutex_unlock(&mvm->mutex); 1450 goto out; 1451 } 1452 mutex_unlock(&mvm->mutex); 1453 1454 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1455 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1456 1457 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1458 i, mac->default_discard, mac->attached_filters); 1459 } 1460 out: 1461 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1462 kfree(buf); 1463 return ret; 1464 } 1465 1466 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1467 char *buf, size_t count, 1468 loff_t *ppos) 1469 { 1470 struct iwl_bcast_filter_cmd cmd; 1471 struct iwl_fw_bcast_mac mac = {}; 1472 u32 mac_id, attached_filters; 1473 int err = 0; 1474 1475 if (!mvm->bcast_filters) 1476 return -ENOENT; 1477 1478 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1479 &attached_filters) != 3) 1480 return -EINVAL; 1481 1482 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1483 mac.default_discard > 1 || 1484 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1485 return -EINVAL; 1486 1487 mac.attached_filters = cpu_to_le16(attached_filters); 1488 1489 mutex_lock(&mvm->mutex); 1490 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1491 &mac, sizeof(mac)); 1492 1493 /* send updated bcast filtering configuration */ 1494 if (iwl_mvm_firmware_running(mvm) && 1495 mvm->dbgfs_bcast_filtering.override && 1496 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1497 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1498 sizeof(cmd), &cmd); 1499 mutex_unlock(&mvm->mutex); 1500 1501 return err ?: count; 1502 } 1503 #endif 1504 1505 #ifdef CONFIG_PM_SLEEP 1506 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1507 size_t count, loff_t *ppos) 1508 { 1509 int store; 1510 1511 if (sscanf(buf, "%d", &store) != 1) 1512 return -EINVAL; 1513 1514 mvm->store_d3_resume_sram = store; 1515 1516 return count; 1517 } 1518 1519 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1520 size_t count, loff_t *ppos) 1521 { 1522 struct iwl_mvm *mvm = file->private_data; 1523 const struct fw_img *img; 1524 int ofs, len, pos = 0; 1525 size_t bufsz, ret; 1526 char *buf; 1527 u8 *ptr = mvm->d3_resume_sram; 1528 1529 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1530 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1531 1532 bufsz = len * 4 + 256; 1533 buf = kzalloc(bufsz, GFP_KERNEL); 1534 if (!buf) 1535 return -ENOMEM; 1536 1537 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1538 mvm->store_d3_resume_sram ? "en" : "dis"); 1539 1540 if (ptr) { 1541 for (ofs = 0; ofs < len; ofs += 16) { 1542 pos += scnprintf(buf + pos, bufsz - pos, 1543 "0x%.4x %16ph\n", ofs, ptr + ofs); 1544 } 1545 } else { 1546 pos += scnprintf(buf + pos, bufsz - pos, 1547 "(no data captured)\n"); 1548 } 1549 1550 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1551 1552 kfree(buf); 1553 1554 return ret; 1555 } 1556 #endif 1557 1558 #define PRINT_MVM_REF(ref) do { \ 1559 if (mvm->refs[ref]) \ 1560 pos += scnprintf(buf + pos, bufsz - pos, \ 1561 "\t(0x%lx): %d %s\n", \ 1562 BIT(ref), mvm->refs[ref], #ref); \ 1563 } while (0) 1564 1565 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1566 char __user *user_buf, 1567 size_t count, loff_t *ppos) 1568 { 1569 struct iwl_mvm *mvm = file->private_data; 1570 int i, pos = 0; 1571 char buf[256]; 1572 const size_t bufsz = sizeof(buf); 1573 u32 refs = 0; 1574 1575 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1576 if (mvm->refs[i]) 1577 refs |= BIT(i); 1578 1579 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1580 refs); 1581 1582 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1583 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1584 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1585 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1586 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1587 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1588 PRINT_MVM_REF(IWL_MVM_REF_USER); 1589 PRINT_MVM_REF(IWL_MVM_REF_TX); 1590 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1591 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1592 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1593 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1594 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1595 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1596 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1597 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1598 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1599 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1600 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1601 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1602 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1603 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1604 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1605 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1606 PRINT_MVM_REF(IWL_MVM_REF_RX); 1607 1608 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1609 } 1610 1611 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1612 size_t count, loff_t *ppos) 1613 { 1614 unsigned long value; 1615 int ret; 1616 bool taken; 1617 1618 ret = kstrtoul(buf, 10, &value); 1619 if (ret < 0) 1620 return ret; 1621 1622 mutex_lock(&mvm->mutex); 1623 1624 taken = mvm->refs[IWL_MVM_REF_USER]; 1625 if (value == 1 && !taken) 1626 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1627 else if (value == 0 && taken) 1628 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1629 else 1630 ret = -EINVAL; 1631 1632 mutex_unlock(&mvm->mutex); 1633 1634 if (ret < 0) 1635 return ret; 1636 return count; 1637 } 1638 1639 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1640 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1641 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1642 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1643 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1644 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1645 &iwl_dbgfs_##name##_ops)) \ 1646 goto err; \ 1647 } while (0) 1648 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1649 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1650 1651 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1652 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1653 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1654 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1655 1656 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1657 if (!debugfs_create_file(alias, mode, parent, sta, \ 1658 &iwl_dbgfs_##name##_ops)) \ 1659 goto err; \ 1660 } while (0) 1661 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1662 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1663 1664 static ssize_t 1665 iwl_dbgfs_prph_reg_read(struct file *file, 1666 char __user *user_buf, 1667 size_t count, loff_t *ppos) 1668 { 1669 struct iwl_mvm *mvm = file->private_data; 1670 int pos = 0; 1671 char buf[32]; 1672 const size_t bufsz = sizeof(buf); 1673 int ret; 1674 1675 if (!mvm->dbgfs_prph_reg_addr) 1676 return -EINVAL; 1677 1678 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1679 if (ret) 1680 return ret; 1681 1682 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1683 mvm->dbgfs_prph_reg_addr, 1684 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1685 1686 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1687 1688 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1689 } 1690 1691 static ssize_t 1692 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1693 size_t count, loff_t *ppos) 1694 { 1695 u8 args; 1696 u32 value; 1697 int ret; 1698 1699 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1700 /* if we only want to set the reg address - nothing more to do */ 1701 if (args == 1) 1702 goto out; 1703 1704 /* otherwise, make sure we have both address and value */ 1705 if (args != 2) 1706 return -EINVAL; 1707 1708 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1709 if (ret) 1710 return ret; 1711 1712 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1713 1714 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1715 out: 1716 return count; 1717 } 1718 1719 static ssize_t 1720 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1721 size_t count, loff_t *ppos) 1722 { 1723 int ret; 1724 1725 if (!iwl_mvm_firmware_running(mvm)) 1726 return -EIO; 1727 1728 mutex_lock(&mvm->mutex); 1729 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1730 mutex_unlock(&mvm->mutex); 1731 1732 return ret ?: count; 1733 } 1734 1735 static ssize_t 1736 iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, 1737 size_t count, loff_t *ppos) 1738 { 1739 struct iwl_mvm *mvm = file->private_data; 1740 u8 buf[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM * ETH_ALEN * 3 + 1]; 1741 unsigned int pos = 0; 1742 size_t bufsz = sizeof(buf); 1743 int i; 1744 1745 mutex_lock(&mvm->mutex); 1746 1747 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) 1748 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 1749 mvm->uapsd_noagg_bssids[i].addr); 1750 1751 mutex_unlock(&mvm->mutex); 1752 1753 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1754 } 1755 1756 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1757 1758 /* Device wide debugfs entries */ 1759 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1760 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1761 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1762 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1763 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1764 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1765 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1766 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1767 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1768 MVM_DEBUGFS_READ_FILE_OPS(stations); 1769 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1770 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1771 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1772 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1773 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1774 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1775 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1776 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1777 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1778 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1779 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1780 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1781 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1782 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1783 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1784 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1785 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1786 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1787 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1788 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1789 1790 MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); 1791 1792 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1793 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1794 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1795 #endif 1796 1797 #ifdef CONFIG_PM_SLEEP 1798 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1799 #endif 1800 #ifdef CONFIG_ACPI 1801 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1802 #endif 1803 1804 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1805 size_t count, loff_t *ppos) 1806 { 1807 struct iwl_mvm *mvm = file->private_data; 1808 struct iwl_dbg_mem_access_cmd cmd = {}; 1809 struct iwl_dbg_mem_access_rsp *rsp; 1810 struct iwl_host_cmd hcmd = { 1811 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1812 .data = { &cmd, }, 1813 .len = { sizeof(cmd) }, 1814 }; 1815 size_t delta; 1816 ssize_t ret, len; 1817 1818 if (!iwl_mvm_firmware_running(mvm)) 1819 return -EIO; 1820 1821 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1822 DEBUG_GROUP, 0); 1823 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1824 1825 /* Take care of alignment of both the position and the length */ 1826 delta = *ppos & 0x3; 1827 cmd.addr = cpu_to_le32(*ppos - delta); 1828 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1829 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1830 1831 mutex_lock(&mvm->mutex); 1832 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1833 mutex_unlock(&mvm->mutex); 1834 1835 if (ret < 0) 1836 return ret; 1837 1838 rsp = (void *)hcmd.resp_pkt->data; 1839 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1840 ret = -ENXIO; 1841 goto out; 1842 } 1843 1844 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1845 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1846 len = min(len - delta, count); 1847 if (len < 0) { 1848 ret = -EFAULT; 1849 goto out; 1850 } 1851 1852 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1853 *ppos += ret; 1854 1855 out: 1856 iwl_free_resp(&hcmd); 1857 return ret; 1858 } 1859 1860 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1861 const char __user *user_buf, size_t count, 1862 loff_t *ppos) 1863 { 1864 struct iwl_mvm *mvm = file->private_data; 1865 struct iwl_dbg_mem_access_cmd *cmd; 1866 struct iwl_dbg_mem_access_rsp *rsp; 1867 struct iwl_host_cmd hcmd = {}; 1868 size_t cmd_size; 1869 size_t data_size; 1870 u32 op, len; 1871 ssize_t ret; 1872 1873 if (!iwl_mvm_firmware_running(mvm)) 1874 return -EIO; 1875 1876 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1877 DEBUG_GROUP, 0); 1878 1879 if (*ppos & 0x3 || count < 4) { 1880 op = DEBUG_MEM_OP_WRITE_BYTES; 1881 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1882 data_size = len; 1883 } else { 1884 op = DEBUG_MEM_OP_WRITE; 1885 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1886 data_size = len << 2; 1887 } 1888 1889 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1890 cmd = kzalloc(cmd_size, GFP_KERNEL); 1891 if (!cmd) 1892 return -ENOMEM; 1893 1894 cmd->op = cpu_to_le32(op); 1895 cmd->len = cpu_to_le32(len); 1896 cmd->addr = cpu_to_le32(*ppos); 1897 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1898 kfree(cmd); 1899 return -EFAULT; 1900 } 1901 1902 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1903 hcmd.data[0] = (void *)cmd; 1904 hcmd.len[0] = cmd_size; 1905 1906 mutex_lock(&mvm->mutex); 1907 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1908 mutex_unlock(&mvm->mutex); 1909 1910 kfree(cmd); 1911 1912 if (ret < 0) 1913 return ret; 1914 1915 rsp = (void *)hcmd.resp_pkt->data; 1916 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1917 ret = -ENXIO; 1918 goto out; 1919 } 1920 1921 ret = data_size; 1922 *ppos += ret; 1923 1924 out: 1925 iwl_free_resp(&hcmd); 1926 return ret; 1927 } 1928 1929 static const struct file_operations iwl_dbgfs_mem_ops = { 1930 .read = iwl_dbgfs_mem_read, 1931 .write = iwl_dbgfs_mem_write, 1932 .open = simple_open, 1933 .llseek = default_llseek, 1934 }; 1935 1936 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 1937 struct ieee80211_vif *vif, 1938 struct ieee80211_sta *sta, 1939 struct dentry *dir) 1940 { 1941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1942 1943 if (iwl_mvm_has_tlc_offload(mvm)) 1944 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400); 1945 1946 return; 1947 err: 1948 IWL_ERR(mvm, "Can't create the mvm station debugfs entry\n"); 1949 } 1950 1951 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1952 { 1953 struct dentry *bcast_dir __maybe_unused; 1954 char buf[100]; 1955 1956 spin_lock_init(&mvm->drv_stats_lock); 1957 1958 mvm->debugfs_dir = dbgfs_dir; 1959 1960 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, 0200); 1961 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, 0200); 1962 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, 0600); 1963 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 0600); 1964 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, 0400); 1965 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, 0400); 1966 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, 0200); 1967 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, 0200); 1968 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, 0400); 1969 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, 0400); 1970 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, 0400); 1971 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 0600); 1972 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, 0400); 1973 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, 0400); 1974 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, 0400); 1975 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, 0200); 1976 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, 0200); 1977 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, 0200); 1978 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, 0200); 1979 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 0600); 1980 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, 0600); 1981 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, 0600); 1982 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, 0600); 1983 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, 0200); 1984 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, 0200); 1985 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); 1986 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, 0200); 1987 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); 1988 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); 1989 #ifdef CONFIG_ACPI 1990 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400); 1991 #endif 1992 1993 if (!debugfs_create_bool("enable_scan_iteration_notif", 1994 0600, 1995 mvm->debugfs_dir, 1996 &mvm->scan_iter_notif_enabled)) 1997 goto err; 1998 if (!debugfs_create_bool("drop_bcn_ap_mode", 0600, 1999 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 2000 goto err; 2001 2002 MVM_DEBUGFS_ADD_FILE(uapsd_noagg_bssids, mvm->debugfs_dir, S_IRUSR); 2003 2004 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 2005 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 2006 bcast_dir = debugfs_create_dir("bcast_filtering", 2007 mvm->debugfs_dir); 2008 if (!bcast_dir) 2009 goto err; 2010 2011 if (!debugfs_create_bool("override", 0600, 2012 bcast_dir, 2013 &mvm->dbgfs_bcast_filtering.override)) 2014 goto err; 2015 2016 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 2017 bcast_dir, 0600); 2018 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 2019 bcast_dir, 0600); 2020 } 2021 #endif 2022 2023 #ifdef CONFIG_PM_SLEEP 2024 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, 0600); 2025 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400); 2026 if (!debugfs_create_bool("d3_wake_sysassert", 0600, 2027 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 2028 goto err; 2029 if (!debugfs_create_u32("last_netdetect_scans", 0400, 2030 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 2031 goto err; 2032 #endif 2033 2034 if (!debugfs_create_u8("ps_disabled", 0400, 2035 mvm->debugfs_dir, &mvm->ps_disabled)) 2036 goto err; 2037 if (!debugfs_create_blob("nvm_hw", 0400, 2038 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 2039 goto err; 2040 if (!debugfs_create_blob("nvm_sw", 0400, 2041 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 2042 goto err; 2043 if (!debugfs_create_blob("nvm_calib", 0400, 2044 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 2045 goto err; 2046 if (!debugfs_create_blob("nvm_prod", 0400, 2047 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 2048 goto err; 2049 if (!debugfs_create_blob("nvm_phy_sku", 0400, 2050 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 2051 goto err; 2052 2053 debugfs_create_file("mem", 0600, dbgfs_dir, mvm, &iwl_dbgfs_mem_ops); 2054 2055 /* 2056 * Create a symlink with mac80211. It will be removed when mac80211 2057 * exists (before the opmode exists which removes the target.) 2058 */ 2059 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 2060 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 2061 goto err; 2062 2063 return 0; 2064 err: 2065 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 2066 return -ENOMEM; 2067 } 2068