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_rs_data_read(struct file *file, char __user *user_buf, 429 size_t count, loff_t *ppos) 430 { 431 struct ieee80211_sta *sta = file->private_data; 432 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 433 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 434 struct iwl_mvm *mvm = lq_sta->pers.drv; 435 static const size_t bufsz = 2048; 436 char *buff; 437 int desc = 0; 438 ssize_t ret; 439 440 buff = kmalloc(bufsz, GFP_KERNEL); 441 if (!buff) 442 return -ENOMEM; 443 444 mutex_lock(&mvm->mutex); 445 446 desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n", 447 lq_sta->pers.sta_id); 448 desc += scnprintf(buff + desc, bufsz - desc, 449 "fixed rate 0x%X\n", 450 lq_sta->pers.dbg_fixed_rate); 451 desc += scnprintf(buff + desc, bufsz - desc, 452 "A-MPDU size limit %d\n", 453 lq_sta->pers.dbg_agg_frame_count_lim); 454 desc += scnprintf(buff + desc, bufsz - desc, 455 "valid_tx_ant %s%s%s\n", 456 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "", 457 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "", 458 (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : ""); 459 desc += scnprintf(buff + desc, bufsz - desc, 460 "last tx rate=0x%X ", 461 lq_sta->last_rate_n_flags); 462 463 desc += rs_pretty_print_rate(buff + desc, lq_sta->last_rate_n_flags); 464 mutex_unlock(&mvm->mutex); 465 466 ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); 467 kfree(buff); 468 return ret; 469 } 470 471 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 472 char __user *user_buf, 473 size_t count, loff_t *ppos) 474 { 475 struct iwl_mvm *mvm = file->private_data; 476 char buf[64]; 477 int bufsz = sizeof(buf); 478 int pos = 0; 479 480 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 481 mvm->disable_power_off); 482 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 483 mvm->disable_power_off_d3); 484 485 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 486 } 487 488 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 489 size_t count, loff_t *ppos) 490 { 491 int ret, val; 492 493 if (!iwl_mvm_firmware_running(mvm)) 494 return -EIO; 495 496 if (!strncmp("disable_power_off_d0=", buf, 21)) { 497 if (sscanf(buf + 21, "%d", &val) != 1) 498 return -EINVAL; 499 mvm->disable_power_off = val; 500 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 501 if (sscanf(buf + 21, "%d", &val) != 1) 502 return -EINVAL; 503 mvm->disable_power_off_d3 = val; 504 } else { 505 return -EINVAL; 506 } 507 508 mutex_lock(&mvm->mutex); 509 ret = iwl_mvm_power_update_device(mvm); 510 mutex_unlock(&mvm->mutex); 511 512 return ret ?: count; 513 } 514 515 static 516 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 517 int pos, int bufsz) 518 { 519 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 520 521 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 522 BT_MBOX_PRINT(0, LE_PROF1, false); 523 BT_MBOX_PRINT(0, LE_PROF2, false); 524 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 525 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 526 BT_MBOX_PRINT(0, INBAND_S, false); 527 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 528 BT_MBOX_PRINT(0, LE_SCAN, false); 529 BT_MBOX_PRINT(0, LE_ADV, false); 530 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 531 BT_MBOX_PRINT(0, OPEN_CON_1, true); 532 533 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 534 535 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 536 BT_MBOX_PRINT(1, IP_SR, false); 537 BT_MBOX_PRINT(1, LE_MSTR, false); 538 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 539 BT_MBOX_PRINT(1, MSG_TYPE, false); 540 BT_MBOX_PRINT(1, SSN, true); 541 542 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 543 544 BT_MBOX_PRINT(2, SNIFF_ACT, false); 545 BT_MBOX_PRINT(2, PAG, false); 546 BT_MBOX_PRINT(2, INQUIRY, false); 547 BT_MBOX_PRINT(2, CONN, false); 548 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 549 BT_MBOX_PRINT(2, DISC, false); 550 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 551 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 552 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 553 BT_MBOX_PRINT(2, SCO_DURATION, true); 554 555 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 556 557 BT_MBOX_PRINT(3, SCO_STATE, false); 558 BT_MBOX_PRINT(3, SNIFF_STATE, false); 559 BT_MBOX_PRINT(3, A2DP_STATE, false); 560 BT_MBOX_PRINT(3, A2DP_SRC, false); 561 BT_MBOX_PRINT(3, ACL_STATE, false); 562 BT_MBOX_PRINT(3, MSTR_STATE, false); 563 BT_MBOX_PRINT(3, OBX_STATE, false); 564 BT_MBOX_PRINT(3, OPEN_CON_2, false); 565 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 566 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 567 BT_MBOX_PRINT(3, INBAND_P, false); 568 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 569 BT_MBOX_PRINT(3, SSN_2, false); 570 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 571 572 return pos; 573 } 574 575 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 576 size_t count, loff_t *ppos) 577 { 578 struct iwl_mvm *mvm = file->private_data; 579 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 580 char *buf; 581 int ret, pos = 0, bufsz = sizeof(char) * 1024; 582 583 buf = kmalloc(bufsz, GFP_KERNEL); 584 if (!buf) 585 return -ENOMEM; 586 587 mutex_lock(&mvm->mutex); 588 589 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 590 591 pos += scnprintf(buf + pos, bufsz - pos, "bt_ci_compliance = %d\n", 592 notif->bt_ci_compliance); 593 pos += scnprintf(buf + pos, bufsz - pos, "primary_ch_lut = %d\n", 594 le32_to_cpu(notif->primary_ch_lut)); 595 pos += scnprintf(buf + pos, bufsz - pos, "secondary_ch_lut = %d\n", 596 le32_to_cpu(notif->secondary_ch_lut)); 597 pos += scnprintf(buf + pos, 598 bufsz - pos, "bt_activity_grading = %d\n", 599 le32_to_cpu(notif->bt_activity_grading)); 600 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 601 notif->rrc_status & 0xF); 602 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 603 notif->ttc_status & 0xF); 604 605 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 606 IWL_MVM_BT_COEX_SYNC2SCO); 607 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 608 IWL_MVM_BT_COEX_MPLUT); 609 610 mutex_unlock(&mvm->mutex); 611 612 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 613 kfree(buf); 614 615 return ret; 616 } 617 #undef BT_MBOX_PRINT 618 619 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 620 size_t count, loff_t *ppos) 621 { 622 struct iwl_mvm *mvm = file->private_data; 623 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 624 char buf[256]; 625 int bufsz = sizeof(buf); 626 int pos = 0; 627 628 mutex_lock(&mvm->mutex); 629 630 pos += scnprintf(buf + pos, bufsz - pos, "Channel inhibition CMD\n"); 631 pos += scnprintf(buf + pos, bufsz - pos, 632 "\tPrimary Channel Bitmap 0x%016llx\n", 633 le64_to_cpu(cmd->bt_primary_ci)); 634 pos += scnprintf(buf + pos, bufsz - pos, 635 "\tSecondary Channel Bitmap 0x%016llx\n", 636 le64_to_cpu(cmd->bt_secondary_ci)); 637 638 mutex_unlock(&mvm->mutex); 639 640 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 641 } 642 643 static ssize_t 644 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 645 size_t count, loff_t *ppos) 646 { 647 u32 bt_tx_prio; 648 649 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 650 return -EINVAL; 651 if (bt_tx_prio > 4) 652 return -EINVAL; 653 654 mvm->bt_tx_prio = bt_tx_prio; 655 656 return count; 657 } 658 659 static ssize_t 660 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 661 size_t count, loff_t *ppos) 662 { 663 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 664 [BT_FORCE_ANT_DIS] = "dis", 665 [BT_FORCE_ANT_AUTO] = "auto", 666 [BT_FORCE_ANT_BT] = "bt", 667 [BT_FORCE_ANT_WIFI] = "wifi", 668 }; 669 int ret, bt_force_ant_mode; 670 671 for (bt_force_ant_mode = 0; 672 bt_force_ant_mode < ARRAY_SIZE(modes_str); 673 bt_force_ant_mode++) { 674 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 675 break; 676 } 677 678 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 679 return -EINVAL; 680 681 ret = 0; 682 mutex_lock(&mvm->mutex); 683 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 684 goto out; 685 686 mvm->bt_force_ant_mode = bt_force_ant_mode; 687 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 688 modes_str[mvm->bt_force_ant_mode]); 689 690 if (iwl_mvm_firmware_running(mvm)) 691 ret = iwl_mvm_send_bt_init_conf(mvm); 692 else 693 ret = 0; 694 695 out: 696 mutex_unlock(&mvm->mutex); 697 return ret ?: count; 698 } 699 700 static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf, 701 size_t count, loff_t *ppos) 702 { 703 struct iwl_mvm *mvm = file->private_data; 704 char *buff, *pos, *endpos; 705 static const size_t bufsz = 1024; 706 int ret; 707 708 buff = kmalloc(bufsz, GFP_KERNEL); 709 if (!buff) 710 return -ENOMEM; 711 712 pos = buff; 713 endpos = pos + bufsz; 714 715 pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n", 716 mvm->trans->cfg->fw_name_pre); 717 pos += scnprintf(pos, endpos - pos, "FW: %s\n", 718 mvm->fwrt.fw->human_readable); 719 pos += scnprintf(pos, endpos - pos, "Device: %s\n", 720 mvm->fwrt.trans->cfg->name); 721 pos += scnprintf(pos, endpos - pos, "Bus: %s\n", 722 mvm->fwrt.dev->bus->name); 723 724 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 725 kfree(buff); 726 727 return ret; 728 } 729 730 #define PRINT_STATS_LE32(_struct, _memb) \ 731 pos += scnprintf(buf + pos, bufsz - pos, \ 732 fmt_table, #_memb, \ 733 le32_to_cpu(_struct->_memb)) 734 735 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 736 char __user *user_buf, size_t count, 737 loff_t *ppos) 738 { 739 struct iwl_mvm *mvm = file->private_data; 740 static const char *fmt_table = "\t%-30s %10u\n"; 741 static const char *fmt_header = "%-32s\n"; 742 int pos = 0; 743 char *buf; 744 int ret; 745 size_t bufsz; 746 747 if (iwl_mvm_has_new_rx_stats_api(mvm)) 748 bufsz = ((sizeof(struct mvm_statistics_rx) / 749 sizeof(__le32)) * 43) + (4 * 33) + 1; 750 else 751 /* 43 = size of each data line; 33 = size of each header */ 752 bufsz = ((sizeof(struct mvm_statistics_rx_v3) / 753 sizeof(__le32)) * 43) + (4 * 33) + 1; 754 755 buf = kzalloc(bufsz, GFP_KERNEL); 756 if (!buf) 757 return -ENOMEM; 758 759 mutex_lock(&mvm->mutex); 760 761 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 762 "Statistics_Rx - OFDM"); 763 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 764 struct mvm_statistics_rx_phy_v2 *ofdm = &mvm->rx_stats_v3.ofdm; 765 766 PRINT_STATS_LE32(ofdm, ina_cnt); 767 PRINT_STATS_LE32(ofdm, fina_cnt); 768 PRINT_STATS_LE32(ofdm, plcp_err); 769 PRINT_STATS_LE32(ofdm, crc32_err); 770 PRINT_STATS_LE32(ofdm, overrun_err); 771 PRINT_STATS_LE32(ofdm, early_overrun_err); 772 PRINT_STATS_LE32(ofdm, crc32_good); 773 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 774 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 775 PRINT_STATS_LE32(ofdm, sfd_timeout); 776 PRINT_STATS_LE32(ofdm, fina_timeout); 777 PRINT_STATS_LE32(ofdm, unresponded_rts); 778 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 779 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 780 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 781 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 782 PRINT_STATS_LE32(ofdm, dsp_self_kill); 783 PRINT_STATS_LE32(ofdm, mh_format_err); 784 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 785 PRINT_STATS_LE32(ofdm, reserved); 786 } else { 787 struct mvm_statistics_rx_phy *ofdm = &mvm->rx_stats.ofdm; 788 789 PRINT_STATS_LE32(ofdm, unresponded_rts); 790 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 791 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 792 PRINT_STATS_LE32(ofdm, dsp_self_kill); 793 PRINT_STATS_LE32(ofdm, reserved); 794 } 795 796 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 797 "Statistics_Rx - CCK"); 798 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 799 struct mvm_statistics_rx_phy_v2 *cck = &mvm->rx_stats_v3.cck; 800 801 PRINT_STATS_LE32(cck, ina_cnt); 802 PRINT_STATS_LE32(cck, fina_cnt); 803 PRINT_STATS_LE32(cck, plcp_err); 804 PRINT_STATS_LE32(cck, crc32_err); 805 PRINT_STATS_LE32(cck, overrun_err); 806 PRINT_STATS_LE32(cck, early_overrun_err); 807 PRINT_STATS_LE32(cck, crc32_good); 808 PRINT_STATS_LE32(cck, false_alarm_cnt); 809 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 810 PRINT_STATS_LE32(cck, sfd_timeout); 811 PRINT_STATS_LE32(cck, fina_timeout); 812 PRINT_STATS_LE32(cck, unresponded_rts); 813 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 814 PRINT_STATS_LE32(cck, sent_ack_cnt); 815 PRINT_STATS_LE32(cck, sent_cts_cnt); 816 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 817 PRINT_STATS_LE32(cck, dsp_self_kill); 818 PRINT_STATS_LE32(cck, mh_format_err); 819 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 820 PRINT_STATS_LE32(cck, reserved); 821 } else { 822 struct mvm_statistics_rx_phy *cck = &mvm->rx_stats.cck; 823 824 PRINT_STATS_LE32(cck, unresponded_rts); 825 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 826 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 827 PRINT_STATS_LE32(cck, dsp_self_kill); 828 PRINT_STATS_LE32(cck, reserved); 829 } 830 831 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 832 "Statistics_Rx - GENERAL"); 833 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 834 struct mvm_statistics_rx_non_phy_v3 *general = 835 &mvm->rx_stats_v3.general; 836 837 PRINT_STATS_LE32(general, bogus_cts); 838 PRINT_STATS_LE32(general, bogus_ack); 839 PRINT_STATS_LE32(general, non_bssid_frames); 840 PRINT_STATS_LE32(general, filtered_frames); 841 PRINT_STATS_LE32(general, non_channel_beacons); 842 PRINT_STATS_LE32(general, channel_beacons); 843 PRINT_STATS_LE32(general, num_missed_bcon); 844 PRINT_STATS_LE32(general, adc_rx_saturation_time); 845 PRINT_STATS_LE32(general, ina_detection_search_time); 846 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 847 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 848 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 849 PRINT_STATS_LE32(general, interference_data_flag); 850 PRINT_STATS_LE32(general, channel_load); 851 PRINT_STATS_LE32(general, dsp_false_alarms); 852 PRINT_STATS_LE32(general, beacon_rssi_a); 853 PRINT_STATS_LE32(general, beacon_rssi_b); 854 PRINT_STATS_LE32(general, beacon_rssi_c); 855 PRINT_STATS_LE32(general, beacon_energy_a); 856 PRINT_STATS_LE32(general, beacon_energy_b); 857 PRINT_STATS_LE32(general, beacon_energy_c); 858 PRINT_STATS_LE32(general, num_bt_kills); 859 PRINT_STATS_LE32(general, mac_id); 860 PRINT_STATS_LE32(general, directed_data_mpdu); 861 } else { 862 struct mvm_statistics_rx_non_phy *general = 863 &mvm->rx_stats.general; 864 865 PRINT_STATS_LE32(general, bogus_cts); 866 PRINT_STATS_LE32(general, bogus_ack); 867 PRINT_STATS_LE32(general, non_channel_beacons); 868 PRINT_STATS_LE32(general, channel_beacons); 869 PRINT_STATS_LE32(general, num_missed_bcon); 870 PRINT_STATS_LE32(general, adc_rx_saturation_time); 871 PRINT_STATS_LE32(general, ina_detection_search_time); 872 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 873 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 874 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 875 PRINT_STATS_LE32(general, interference_data_flag); 876 PRINT_STATS_LE32(general, channel_load); 877 PRINT_STATS_LE32(general, beacon_rssi_a); 878 PRINT_STATS_LE32(general, beacon_rssi_b); 879 PRINT_STATS_LE32(general, beacon_rssi_c); 880 PRINT_STATS_LE32(general, beacon_energy_a); 881 PRINT_STATS_LE32(general, beacon_energy_b); 882 PRINT_STATS_LE32(general, beacon_energy_c); 883 PRINT_STATS_LE32(general, num_bt_kills); 884 PRINT_STATS_LE32(general, mac_id); 885 } 886 887 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 888 "Statistics_Rx - HT"); 889 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 890 struct mvm_statistics_rx_ht_phy_v1 *ht = 891 &mvm->rx_stats_v3.ofdm_ht; 892 893 PRINT_STATS_LE32(ht, plcp_err); 894 PRINT_STATS_LE32(ht, overrun_err); 895 PRINT_STATS_LE32(ht, early_overrun_err); 896 PRINT_STATS_LE32(ht, crc32_good); 897 PRINT_STATS_LE32(ht, crc32_err); 898 PRINT_STATS_LE32(ht, mh_format_err); 899 PRINT_STATS_LE32(ht, agg_crc32_good); 900 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 901 PRINT_STATS_LE32(ht, agg_cnt); 902 PRINT_STATS_LE32(ht, unsupport_mcs); 903 } else { 904 struct mvm_statistics_rx_ht_phy *ht = 905 &mvm->rx_stats.ofdm_ht; 906 907 PRINT_STATS_LE32(ht, mh_format_err); 908 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 909 PRINT_STATS_LE32(ht, agg_cnt); 910 PRINT_STATS_LE32(ht, unsupport_mcs); 911 } 912 913 mutex_unlock(&mvm->mutex); 914 915 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 916 kfree(buf); 917 918 return ret; 919 } 920 #undef PRINT_STAT_LE32 921 922 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 923 char __user *user_buf, size_t count, 924 loff_t *ppos, 925 struct iwl_mvm_frame_stats *stats) 926 { 927 char *buff, *pos, *endpos; 928 int idx, i; 929 int ret; 930 static const size_t bufsz = 1024; 931 932 buff = kmalloc(bufsz, GFP_KERNEL); 933 if (!buff) 934 return -ENOMEM; 935 936 spin_lock_bh(&mvm->drv_stats_lock); 937 938 pos = buff; 939 endpos = pos + bufsz; 940 941 pos += scnprintf(pos, endpos - pos, 942 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 943 stats->legacy_frames, 944 stats->ht_frames, 945 stats->vht_frames); 946 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 947 stats->bw_20_frames, 948 stats->bw_40_frames, 949 stats->bw_80_frames); 950 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 951 stats->ngi_frames, 952 stats->sgi_frames); 953 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 954 stats->siso_frames, 955 stats->mimo2_frames); 956 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 957 stats->fail_frames, 958 stats->success_frames); 959 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 960 stats->agg_frames); 961 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 962 stats->ampdu_count); 963 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 964 stats->ampdu_count > 0 ? 965 (stats->agg_frames / stats->ampdu_count) : 0); 966 967 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 968 969 idx = stats->last_frame_idx - 1; 970 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 971 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 972 if (stats->last_rates[idx] == 0) 973 continue; 974 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 975 (int)(ARRAY_SIZE(stats->last_rates) - i)); 976 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 977 } 978 spin_unlock_bh(&mvm->drv_stats_lock); 979 980 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 981 kfree(buff); 982 983 return ret; 984 } 985 986 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 987 char __user *user_buf, size_t count, 988 loff_t *ppos) 989 { 990 struct iwl_mvm *mvm = file->private_data; 991 992 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 993 &mvm->drv_rx_stats); 994 } 995 996 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 997 size_t count, loff_t *ppos) 998 { 999 int __maybe_unused ret; 1000 1001 if (!iwl_mvm_firmware_running(mvm)) 1002 return -EIO; 1003 1004 mutex_lock(&mvm->mutex); 1005 1006 /* allow one more restart that we're provoking here */ 1007 if (mvm->fw_restart >= 0) 1008 mvm->fw_restart++; 1009 1010 /* take the return value to make compiler happy - it will fail anyway */ 1011 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 1012 1013 mutex_unlock(&mvm->mutex); 1014 1015 return count; 1016 } 1017 1018 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 1019 size_t count, loff_t *ppos) 1020 { 1021 int ret; 1022 1023 if (!iwl_mvm_firmware_running(mvm)) 1024 return -EIO; 1025 1026 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 1027 if (ret) 1028 return ret; 1029 1030 iwl_force_nmi(mvm->trans); 1031 1032 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 1033 1034 return count; 1035 } 1036 1037 static ssize_t 1038 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 1039 char __user *user_buf, 1040 size_t count, loff_t *ppos) 1041 { 1042 struct iwl_mvm *mvm = file->private_data; 1043 int pos = 0; 1044 char buf[32]; 1045 const size_t bufsz = sizeof(buf); 1046 1047 /* print which antennas were set for the scan command by the user */ 1048 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 1049 if (mvm->scan_rx_ant & ANT_A) 1050 pos += scnprintf(buf + pos, bufsz - pos, "A"); 1051 if (mvm->scan_rx_ant & ANT_B) 1052 pos += scnprintf(buf + pos, bufsz - pos, "B"); 1053 if (mvm->scan_rx_ant & ANT_C) 1054 pos += scnprintf(buf + pos, bufsz - pos, "C"); 1055 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 1056 1057 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1058 } 1059 1060 static ssize_t 1061 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 1062 size_t count, loff_t *ppos) 1063 { 1064 u8 scan_rx_ant; 1065 1066 if (!iwl_mvm_firmware_running(mvm)) 1067 return -EIO; 1068 1069 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 1070 return -EINVAL; 1071 if (scan_rx_ant > ANT_ABC) 1072 return -EINVAL; 1073 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 1074 return -EINVAL; 1075 1076 if (mvm->scan_rx_ant != scan_rx_ant) { 1077 mvm->scan_rx_ant = scan_rx_ant; 1078 if (fw_has_capa(&mvm->fw->ucode_capa, 1079 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1080 iwl_mvm_config_scan(mvm); 1081 } 1082 1083 return count; 1084 } 1085 1086 static ssize_t iwl_dbgfs_indirection_tbl_write(struct iwl_mvm *mvm, 1087 char *buf, size_t count, 1088 loff_t *ppos) 1089 { 1090 struct iwl_rss_config_cmd cmd = { 1091 .flags = cpu_to_le32(IWL_RSS_ENABLE), 1092 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP | 1093 IWL_RSS_HASH_TYPE_IPV4_UDP | 1094 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD | 1095 IWL_RSS_HASH_TYPE_IPV6_TCP | 1096 IWL_RSS_HASH_TYPE_IPV6_UDP | 1097 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD, 1098 }; 1099 int ret, i, num_repeats, nbytes = count / 2; 1100 1101 ret = hex2bin(cmd.indirection_table, buf, nbytes); 1102 if (ret) 1103 return ret; 1104 1105 /* 1106 * The input is the redirection table, partial or full. 1107 * Repeat the pattern if needed. 1108 * For example, input of 01020F will be repeated 42 times, 1109 * indirecting RSS hash results to queues 1, 2, 15 (skipping 1110 * queues 3 - 14). 1111 */ 1112 num_repeats = ARRAY_SIZE(cmd.indirection_table) / nbytes; 1113 for (i = 1; i < num_repeats; i++) 1114 memcpy(&cmd.indirection_table[i * nbytes], 1115 cmd.indirection_table, nbytes); 1116 /* handle cut in the middle pattern for the last places */ 1117 memcpy(&cmd.indirection_table[i * nbytes], cmd.indirection_table, 1118 ARRAY_SIZE(cmd.indirection_table) % nbytes); 1119 1120 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key)); 1121 1122 mutex_lock(&mvm->mutex); 1123 if (iwl_mvm_firmware_running(mvm)) 1124 ret = iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, 1125 sizeof(cmd), &cmd); 1126 else 1127 ret = 0; 1128 mutex_unlock(&mvm->mutex); 1129 1130 return ret ?: count; 1131 } 1132 1133 static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, 1134 char *buf, size_t count, 1135 loff_t *ppos) 1136 { 1137 struct iwl_rx_cmd_buffer rxb = { 1138 ._rx_page_order = 0, 1139 .truesize = 0, /* not used */ 1140 ._offset = 0, 1141 }; 1142 struct iwl_rx_packet *pkt; 1143 struct iwl_rx_mpdu_desc *desc; 1144 int bin_len = count / 2; 1145 int ret = -EINVAL; 1146 1147 if (!iwl_mvm_firmware_running(mvm)) 1148 return -EIO; 1149 1150 /* supporting only 9000 descriptor */ 1151 if (!mvm->trans->cfg->mq_rx_supported) 1152 return -ENOTSUPP; 1153 1154 rxb._page = alloc_pages(GFP_ATOMIC, 0); 1155 if (!rxb._page) 1156 return -ENOMEM; 1157 pkt = rxb_addr(&rxb); 1158 1159 ret = hex2bin(page_address(rxb._page), buf, bin_len); 1160 if (ret) 1161 goto out; 1162 1163 /* avoid invalid memory access */ 1164 if (bin_len < sizeof(*pkt) + sizeof(*desc)) 1165 goto out; 1166 1167 /* check this is RX packet */ 1168 if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != 1169 WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) 1170 goto out; 1171 1172 /* check the length in metadata matches actual received length */ 1173 desc = (void *)pkt->data; 1174 if (le16_to_cpu(desc->mpdu_len) != 1175 (bin_len - sizeof(*desc) - sizeof(*pkt))) 1176 goto out; 1177 1178 local_bh_disable(); 1179 iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); 1180 local_bh_enable(); 1181 ret = 0; 1182 1183 out: 1184 iwl_free_rxb(&rxb); 1185 1186 return ret ?: count; 1187 } 1188 1189 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 1190 char __user *user_buf, 1191 size_t count, loff_t *ppos) 1192 { 1193 struct iwl_mvm *mvm = file->private_data; 1194 int conf; 1195 char buf[8]; 1196 const size_t bufsz = sizeof(buf); 1197 int pos = 0; 1198 1199 mutex_lock(&mvm->mutex); 1200 conf = mvm->fwrt.dump.conf; 1201 mutex_unlock(&mvm->mutex); 1202 1203 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 1204 1205 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1206 } 1207 1208 /* 1209 * Enable / Disable continuous recording. 1210 * Cause the FW to start continuous recording, by sending the relevant hcmd. 1211 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 1212 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 1213 */ 1214 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 1215 char *buf, size_t count, 1216 loff_t *ppos) 1217 { 1218 struct iwl_trans *trans = mvm->trans; 1219 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 1220 struct iwl_continuous_record_cmd cont_rec = {}; 1221 int ret, rec_mode; 1222 1223 if (!iwl_mvm_firmware_running(mvm)) 1224 return -EIO; 1225 1226 if (!dest) 1227 return -EOPNOTSUPP; 1228 1229 if (dest->monitor_mode != SMEM_MODE || 1230 trans->cfg->device_family < IWL_DEVICE_FAMILY_8000) 1231 return -EOPNOTSUPP; 1232 1233 ret = kstrtoint(buf, 0, &rec_mode); 1234 if (ret) 1235 return ret; 1236 1237 cont_rec.record_mode.enable_recording = rec_mode ? 1238 cpu_to_le16(ENABLE_CONT_RECORDING) : 1239 cpu_to_le16(DISABLE_CONT_RECORDING); 1240 1241 mutex_lock(&mvm->mutex); 1242 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 1243 sizeof(cont_rec), &cont_rec); 1244 mutex_unlock(&mvm->mutex); 1245 1246 return ret ?: count; 1247 } 1248 1249 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1250 char *buf, size_t count, 1251 loff_t *ppos) 1252 { 1253 unsigned int conf_id; 1254 int ret; 1255 1256 if (!iwl_mvm_firmware_running(mvm)) 1257 return -EIO; 1258 1259 ret = kstrtouint(buf, 0, &conf_id); 1260 if (ret) 1261 return ret; 1262 1263 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1264 return -EINVAL; 1265 1266 mutex_lock(&mvm->mutex); 1267 ret = iwl_fw_start_dbg_conf(&mvm->fwrt, conf_id); 1268 mutex_unlock(&mvm->mutex); 1269 1270 return ret ?: count; 1271 } 1272 1273 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1274 char *buf, size_t count, 1275 loff_t *ppos) 1276 { 1277 int ret; 1278 1279 if (!iwl_mvm_firmware_running(mvm)) 1280 return -EIO; 1281 1282 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1283 if (ret) 1284 return ret; 1285 if (count == 0) 1286 return 0; 1287 1288 iwl_fw_dbg_collect(&mvm->fwrt, FW_DBG_TRIGGER_USER, buf, 1289 (count - 1), NULL); 1290 1291 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1292 1293 return count; 1294 } 1295 1296 static ssize_t iwl_dbgfs_max_amsdu_len_write(struct iwl_mvm *mvm, 1297 char *buf, size_t count, 1298 loff_t *ppos) 1299 { 1300 unsigned int max_amsdu_len; 1301 int ret; 1302 1303 ret = kstrtouint(buf, 0, &max_amsdu_len); 1304 if (ret) 1305 return ret; 1306 1307 if (max_amsdu_len > IEEE80211_MAX_MPDU_LEN_VHT_11454) 1308 return -EINVAL; 1309 mvm->max_amsdu_len = max_amsdu_len; 1310 1311 return count; 1312 } 1313 1314 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1315 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1316 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1317 char __user *user_buf, 1318 size_t count, loff_t *ppos) 1319 { 1320 struct iwl_mvm *mvm = file->private_data; 1321 struct iwl_bcast_filter_cmd cmd; 1322 const struct iwl_fw_bcast_filter *filter; 1323 char *buf; 1324 int bufsz = 1024; 1325 int i, j, pos = 0; 1326 ssize_t ret; 1327 1328 buf = kzalloc(bufsz, GFP_KERNEL); 1329 if (!buf) 1330 return -ENOMEM; 1331 1332 mutex_lock(&mvm->mutex); 1333 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1334 ADD_TEXT("None\n"); 1335 mutex_unlock(&mvm->mutex); 1336 goto out; 1337 } 1338 mutex_unlock(&mvm->mutex); 1339 1340 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1341 filter = &cmd.filters[i]; 1342 1343 ADD_TEXT("Filter [%d]:\n", i); 1344 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1345 ADD_TEXT("\tFrame Type: %s\n", 1346 filter->frame_type ? "IPv4" : "Generic"); 1347 1348 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1349 const struct iwl_fw_bcast_filter_attr *attr; 1350 1351 attr = &filter->attrs[j]; 1352 if (!attr->mask) 1353 break; 1354 1355 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1356 j, attr->offset, 1357 attr->offset_type ? "IP End" : 1358 "Payload Start", 1359 be32_to_cpu(attr->mask), 1360 be32_to_cpu(attr->val), 1361 le16_to_cpu(attr->reserved1)); 1362 } 1363 } 1364 out: 1365 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1366 kfree(buf); 1367 return ret; 1368 } 1369 1370 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1371 size_t count, loff_t *ppos) 1372 { 1373 int pos, next_pos; 1374 struct iwl_fw_bcast_filter filter = {}; 1375 struct iwl_bcast_filter_cmd cmd; 1376 u32 filter_id, attr_id, mask, value; 1377 int err = 0; 1378 1379 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1380 &filter.frame_type, &pos) != 3) 1381 return -EINVAL; 1382 1383 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1384 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1385 return -EINVAL; 1386 1387 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1388 attr_id++) { 1389 struct iwl_fw_bcast_filter_attr *attr = 1390 &filter.attrs[attr_id]; 1391 1392 if (pos >= count) 1393 break; 1394 1395 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1396 &attr->offset, &attr->offset_type, 1397 &mask, &value, &next_pos) != 4) 1398 return -EINVAL; 1399 1400 attr->mask = cpu_to_be32(mask); 1401 attr->val = cpu_to_be32(value); 1402 if (mask) 1403 filter.num_attrs++; 1404 1405 pos += next_pos; 1406 } 1407 1408 mutex_lock(&mvm->mutex); 1409 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1410 &filter, sizeof(filter)); 1411 1412 /* send updated bcast filtering configuration */ 1413 if (iwl_mvm_firmware_running(mvm) && 1414 mvm->dbgfs_bcast_filtering.override && 1415 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1416 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1417 sizeof(cmd), &cmd); 1418 mutex_unlock(&mvm->mutex); 1419 1420 return err ?: count; 1421 } 1422 1423 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1424 char __user *user_buf, 1425 size_t count, loff_t *ppos) 1426 { 1427 struct iwl_mvm *mvm = file->private_data; 1428 struct iwl_bcast_filter_cmd cmd; 1429 char *buf; 1430 int bufsz = 1024; 1431 int i, pos = 0; 1432 ssize_t ret; 1433 1434 buf = kzalloc(bufsz, GFP_KERNEL); 1435 if (!buf) 1436 return -ENOMEM; 1437 1438 mutex_lock(&mvm->mutex); 1439 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1440 ADD_TEXT("None\n"); 1441 mutex_unlock(&mvm->mutex); 1442 goto out; 1443 } 1444 mutex_unlock(&mvm->mutex); 1445 1446 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1447 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1448 1449 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1450 i, mac->default_discard, mac->attached_filters); 1451 } 1452 out: 1453 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1454 kfree(buf); 1455 return ret; 1456 } 1457 1458 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1459 char *buf, size_t count, 1460 loff_t *ppos) 1461 { 1462 struct iwl_bcast_filter_cmd cmd; 1463 struct iwl_fw_bcast_mac mac = {}; 1464 u32 mac_id, attached_filters; 1465 int err = 0; 1466 1467 if (!mvm->bcast_filters) 1468 return -ENOENT; 1469 1470 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1471 &attached_filters) != 3) 1472 return -EINVAL; 1473 1474 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1475 mac.default_discard > 1 || 1476 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1477 return -EINVAL; 1478 1479 mac.attached_filters = cpu_to_le16(attached_filters); 1480 1481 mutex_lock(&mvm->mutex); 1482 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1483 &mac, sizeof(mac)); 1484 1485 /* send updated bcast filtering configuration */ 1486 if (iwl_mvm_firmware_running(mvm) && 1487 mvm->dbgfs_bcast_filtering.override && 1488 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1489 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1490 sizeof(cmd), &cmd); 1491 mutex_unlock(&mvm->mutex); 1492 1493 return err ?: count; 1494 } 1495 #endif 1496 1497 #ifdef CONFIG_PM_SLEEP 1498 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1499 size_t count, loff_t *ppos) 1500 { 1501 int store; 1502 1503 if (sscanf(buf, "%d", &store) != 1) 1504 return -EINVAL; 1505 1506 mvm->store_d3_resume_sram = store; 1507 1508 return count; 1509 } 1510 1511 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1512 size_t count, loff_t *ppos) 1513 { 1514 struct iwl_mvm *mvm = file->private_data; 1515 const struct fw_img *img; 1516 int ofs, len, pos = 0; 1517 size_t bufsz, ret; 1518 char *buf; 1519 u8 *ptr = mvm->d3_resume_sram; 1520 1521 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1522 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1523 1524 bufsz = len * 4 + 256; 1525 buf = kzalloc(bufsz, GFP_KERNEL); 1526 if (!buf) 1527 return -ENOMEM; 1528 1529 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1530 mvm->store_d3_resume_sram ? "en" : "dis"); 1531 1532 if (ptr) { 1533 for (ofs = 0; ofs < len; ofs += 16) { 1534 pos += scnprintf(buf + pos, bufsz - pos, 1535 "0x%.4x %16ph\n", ofs, ptr + ofs); 1536 } 1537 } else { 1538 pos += scnprintf(buf + pos, bufsz - pos, 1539 "(no data captured)\n"); 1540 } 1541 1542 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1543 1544 kfree(buf); 1545 1546 return ret; 1547 } 1548 #endif 1549 1550 #define PRINT_MVM_REF(ref) do { \ 1551 if (mvm->refs[ref]) \ 1552 pos += scnprintf(buf + pos, bufsz - pos, \ 1553 "\t(0x%lx): %d %s\n", \ 1554 BIT(ref), mvm->refs[ref], #ref); \ 1555 } while (0) 1556 1557 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1558 char __user *user_buf, 1559 size_t count, loff_t *ppos) 1560 { 1561 struct iwl_mvm *mvm = file->private_data; 1562 int i, pos = 0; 1563 char buf[256]; 1564 const size_t bufsz = sizeof(buf); 1565 u32 refs = 0; 1566 1567 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1568 if (mvm->refs[i]) 1569 refs |= BIT(i); 1570 1571 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1572 refs); 1573 1574 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1575 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1576 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1577 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1578 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1579 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1580 PRINT_MVM_REF(IWL_MVM_REF_USER); 1581 PRINT_MVM_REF(IWL_MVM_REF_TX); 1582 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1583 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1584 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1585 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1586 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1587 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1588 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1589 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1590 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1591 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1592 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1593 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1594 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1595 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1596 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1597 PRINT_MVM_REF(IWL_MVM_REF_SENDING_CMD); 1598 PRINT_MVM_REF(IWL_MVM_REF_RX); 1599 1600 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1601 } 1602 1603 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1604 size_t count, loff_t *ppos) 1605 { 1606 unsigned long value; 1607 int ret; 1608 bool taken; 1609 1610 ret = kstrtoul(buf, 10, &value); 1611 if (ret < 0) 1612 return ret; 1613 1614 mutex_lock(&mvm->mutex); 1615 1616 taken = mvm->refs[IWL_MVM_REF_USER]; 1617 if (value == 1 && !taken) 1618 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1619 else if (value == 0 && taken) 1620 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1621 else 1622 ret = -EINVAL; 1623 1624 mutex_unlock(&mvm->mutex); 1625 1626 if (ret < 0) 1627 return ret; 1628 return count; 1629 } 1630 1631 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1632 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1633 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1634 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1635 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1636 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1637 &iwl_dbgfs_##name##_ops)) \ 1638 goto err; \ 1639 } while (0) 1640 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1641 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1642 1643 #define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \ 1644 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1645 #define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \ 1646 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta) 1647 1648 #define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do { \ 1649 if (!debugfs_create_file(alias, mode, parent, sta, \ 1650 &iwl_dbgfs_##name##_ops)) \ 1651 goto err; \ 1652 } while (0) 1653 #define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \ 1654 MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode) 1655 1656 static ssize_t 1657 iwl_dbgfs_prph_reg_read(struct file *file, 1658 char __user *user_buf, 1659 size_t count, loff_t *ppos) 1660 { 1661 struct iwl_mvm *mvm = file->private_data; 1662 int pos = 0; 1663 char buf[32]; 1664 const size_t bufsz = sizeof(buf); 1665 int ret; 1666 1667 if (!mvm->dbgfs_prph_reg_addr) 1668 return -EINVAL; 1669 1670 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1671 if (ret) 1672 return ret; 1673 1674 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1675 mvm->dbgfs_prph_reg_addr, 1676 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1677 1678 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1679 1680 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1681 } 1682 1683 static ssize_t 1684 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1685 size_t count, loff_t *ppos) 1686 { 1687 u8 args; 1688 u32 value; 1689 int ret; 1690 1691 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1692 /* if we only want to set the reg address - nothing more to do */ 1693 if (args == 1) 1694 goto out; 1695 1696 /* otherwise, make sure we have both address and value */ 1697 if (args != 2) 1698 return -EINVAL; 1699 1700 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1701 if (ret) 1702 return ret; 1703 1704 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1705 1706 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1707 out: 1708 return count; 1709 } 1710 1711 static ssize_t 1712 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1713 size_t count, loff_t *ppos) 1714 { 1715 int ret; 1716 1717 if (!iwl_mvm_firmware_running(mvm)) 1718 return -EIO; 1719 1720 mutex_lock(&mvm->mutex); 1721 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1722 mutex_unlock(&mvm->mutex); 1723 1724 return ret ?: count; 1725 } 1726 1727 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1728 1729 /* Device wide debugfs entries */ 1730 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); 1731 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); 1732 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); 1733 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1734 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1735 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1736 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1737 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1738 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1739 MVM_DEBUGFS_READ_FILE_OPS(stations); 1740 MVM_DEBUGFS_READ_FILE_OPS(rs_data); 1741 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1742 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1743 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1744 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1745 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1746 MVM_DEBUGFS_READ_FILE_OPS(fw_ver); 1747 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1748 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1749 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1750 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1751 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1752 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1753 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1754 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1755 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1756 MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); 1757 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, 1758 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); 1759 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); 1760 1761 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1762 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1763 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1764 #endif 1765 1766 #ifdef CONFIG_PM_SLEEP 1767 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1768 #endif 1769 #ifdef CONFIG_ACPI 1770 MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); 1771 #endif 1772 1773 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, 1774 size_t count, loff_t *ppos) 1775 { 1776 struct iwl_mvm *mvm = file->private_data; 1777 struct iwl_dbg_mem_access_cmd cmd = {}; 1778 struct iwl_dbg_mem_access_rsp *rsp; 1779 struct iwl_host_cmd hcmd = { 1780 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1781 .data = { &cmd, }, 1782 .len = { sizeof(cmd) }, 1783 }; 1784 size_t delta; 1785 ssize_t ret, len; 1786 1787 if (!iwl_mvm_firmware_running(mvm)) 1788 return -EIO; 1789 1790 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1791 DEBUG_GROUP, 0); 1792 cmd.op = cpu_to_le32(DEBUG_MEM_OP_READ); 1793 1794 /* Take care of alignment of both the position and the length */ 1795 delta = *ppos & 0x3; 1796 cmd.addr = cpu_to_le32(*ppos - delta); 1797 cmd.len = cpu_to_le32(min(ALIGN(count + delta, 4) / 4, 1798 (size_t)DEBUG_MEM_MAX_SIZE_DWORDS)); 1799 1800 mutex_lock(&mvm->mutex); 1801 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1802 mutex_unlock(&mvm->mutex); 1803 1804 if (ret < 0) 1805 return ret; 1806 1807 rsp = (void *)hcmd.resp_pkt->data; 1808 if (le32_to_cpu(rsp->status) != DEBUG_MEM_STATUS_SUCCESS) { 1809 ret = -ENXIO; 1810 goto out; 1811 } 1812 1813 len = min((size_t)le32_to_cpu(rsp->len) << 2, 1814 iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); 1815 len = min(len - delta, count); 1816 if (len < 0) { 1817 ret = -EFAULT; 1818 goto out; 1819 } 1820 1821 ret = len - copy_to_user(user_buf, (void *)rsp->data + delta, len); 1822 *ppos += ret; 1823 1824 out: 1825 iwl_free_resp(&hcmd); 1826 return ret; 1827 } 1828 1829 static ssize_t iwl_dbgfs_mem_write(struct file *file, 1830 const char __user *user_buf, size_t count, 1831 loff_t *ppos) 1832 { 1833 struct iwl_mvm *mvm = file->private_data; 1834 struct iwl_dbg_mem_access_cmd *cmd; 1835 struct iwl_dbg_mem_access_rsp *rsp; 1836 struct iwl_host_cmd hcmd = {}; 1837 size_t cmd_size; 1838 size_t data_size; 1839 u32 op, len; 1840 ssize_t ret; 1841 1842 if (!iwl_mvm_firmware_running(mvm)) 1843 return -EIO; 1844 1845 hcmd.id = iwl_cmd_id(*ppos >> 24 ? UMAC_RD_WR : LMAC_RD_WR, 1846 DEBUG_GROUP, 0); 1847 1848 if (*ppos & 0x3 || count < 4) { 1849 op = DEBUG_MEM_OP_WRITE_BYTES; 1850 len = min(count, (size_t)(4 - (*ppos & 0x3))); 1851 data_size = len; 1852 } else { 1853 op = DEBUG_MEM_OP_WRITE; 1854 len = min(count >> 2, (size_t)DEBUG_MEM_MAX_SIZE_DWORDS); 1855 data_size = len << 2; 1856 } 1857 1858 cmd_size = sizeof(*cmd) + ALIGN(data_size, 4); 1859 cmd = kzalloc(cmd_size, GFP_KERNEL); 1860 if (!cmd) 1861 return -ENOMEM; 1862 1863 cmd->op = cpu_to_le32(op); 1864 cmd->len = cpu_to_le32(len); 1865 cmd->addr = cpu_to_le32(*ppos); 1866 if (copy_from_user((void *)cmd->data, user_buf, data_size)) { 1867 kfree(cmd); 1868 return -EFAULT; 1869 } 1870 1871 hcmd.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, 1872 hcmd.data[0] = (void *)cmd; 1873 hcmd.len[0] = cmd_size; 1874 1875 mutex_lock(&mvm->mutex); 1876 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1877 mutex_unlock(&mvm->mutex); 1878 1879 kfree(cmd); 1880 1881 if (ret < 0) 1882 return ret; 1883 1884 rsp = (void *)hcmd.resp_pkt->data; 1885 if (rsp->status != DEBUG_MEM_STATUS_SUCCESS) { 1886 ret = -ENXIO; 1887 goto out; 1888 } 1889 1890 ret = data_size; 1891 *ppos += ret; 1892 1893 out: 1894 iwl_free_resp(&hcmd); 1895 return ret; 1896 } 1897 1898 static const struct file_operations iwl_dbgfs_mem_ops = { 1899 .read = iwl_dbgfs_mem_read, 1900 .write = iwl_dbgfs_mem_write, 1901 .open = simple_open, 1902 .llseek = default_llseek, 1903 }; 1904 1905 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw, 1906 struct ieee80211_vif *vif, 1907 struct ieee80211_sta *sta, 1908 struct dentry *dir) 1909 { 1910 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1911 1912 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TLC_OFFLOAD)) 1913 MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, S_IRUSR); 1914 1915 return; 1916 err: 1917 IWL_ERR(mvm, "Can't create the mvm station debugfs entry\n"); 1918 } 1919 1920 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1921 { 1922 struct dentry *bcast_dir __maybe_unused; 1923 char buf[100]; 1924 1925 spin_lock_init(&mvm->drv_stats_lock); 1926 1927 mvm->debugfs_dir = dbgfs_dir; 1928 1929 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1930 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1931 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1932 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1933 S_IWUSR | S_IRUSR); 1934 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1935 MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); 1936 MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); 1937 MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); 1938 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1939 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1940 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1941 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1942 S_IRUSR | S_IWUSR); 1943 MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, S_IRUSR); 1944 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1945 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1946 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1947 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1948 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1949 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1950 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1951 S_IWUSR | S_IRUSR); 1952 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1953 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1954 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1955 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1956 MVM_DEBUGFS_ADD_FILE(max_amsdu_len, mvm->debugfs_dir, S_IWUSR); 1957 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1958 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1959 MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); 1960 MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); 1961 #ifdef CONFIG_ACPI 1962 MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR); 1963 #endif 1964 1965 if (!debugfs_create_bool("enable_scan_iteration_notif", 1966 S_IRUSR | S_IWUSR, 1967 mvm->debugfs_dir, 1968 &mvm->scan_iter_notif_enabled)) 1969 goto err; 1970 if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR, 1971 mvm->debugfs_dir, &mvm->drop_bcn_ap_mode)) 1972 goto err; 1973 1974 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1975 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1976 bcast_dir = debugfs_create_dir("bcast_filtering", 1977 mvm->debugfs_dir); 1978 if (!bcast_dir) 1979 goto err; 1980 1981 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1982 bcast_dir, 1983 &mvm->dbgfs_bcast_filtering.override)) 1984 goto err; 1985 1986 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1987 bcast_dir, S_IWUSR | S_IRUSR); 1988 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1989 bcast_dir, S_IWUSR | S_IRUSR); 1990 } 1991 #endif 1992 1993 #ifdef CONFIG_PM_SLEEP 1994 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1995 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1996 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1997 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1998 goto err; 1999 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 2000 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 2001 goto err; 2002 #endif 2003 2004 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 2005 mvm->debugfs_dir, &mvm->ps_disabled)) 2006 goto err; 2007 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 2008 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 2009 goto err; 2010 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 2011 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 2012 goto err; 2013 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 2014 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 2015 goto err; 2016 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 2017 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 2018 goto err; 2019 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 2020 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 2021 goto err; 2022 2023 debugfs_create_file("mem", S_IRUSR | S_IWUSR, dbgfs_dir, mvm, 2024 &iwl_dbgfs_mem_ops); 2025 2026 /* 2027 * Create a symlink with mac80211. It will be removed when mac80211 2028 * exists (before the opmode exists which removes the target.) 2029 */ 2030 snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent); 2031 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 2032 goto err; 2033 2034 return 0; 2035 err: 2036 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 2037 return -ENOMEM; 2038 } 2039