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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause2/*3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH5 * Copyright (C) 2016-2017 Intel Deutschland GmbH6 */7#include "mvm.h"8#include "debugfs.h"9 10static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,11 struct ieee80211_vif *vif,12 enum iwl_dbgfs_pm_mask param, int val)13{14 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);15 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;16 17 dbgfs_pm->mask |= param;18 19 switch (param) {20 case MVM_DEBUGFS_PM_KEEP_ALIVE: {21 int dtimper = vif->bss_conf.dtim_period ?: 1;22 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;23 24 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);25 if (val * MSEC_PER_SEC < 3 * dtimper_msec)26 IWL_WARN(mvm,27 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",28 val * MSEC_PER_SEC, 3 * dtimper_msec);29 dbgfs_pm->keep_alive_seconds = val;30 break;31 }32 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:33 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",34 val ? "enabled" : "disabled");35 dbgfs_pm->skip_over_dtim = val;36 break;37 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:38 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);39 dbgfs_pm->skip_dtim_periods = val;40 break;41 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:42 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);43 dbgfs_pm->rx_data_timeout = val;44 break;45 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:46 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);47 dbgfs_pm->tx_data_timeout = val;48 break;49 case MVM_DEBUGFS_PM_LPRX_ENA:50 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");51 dbgfs_pm->lprx_ena = val;52 break;53 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:54 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);55 dbgfs_pm->lprx_rssi_threshold = val;56 break;57 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:58 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);59 dbgfs_pm->snooze_ena = val;60 break;61 case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:62 IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);63 dbgfs_pm->uapsd_misbehaving = val;64 break;65 case MVM_DEBUGFS_PM_USE_PS_POLL:66 IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);67 dbgfs_pm->use_ps_poll = val;68 break;69 }70}71 72static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf,73 size_t count, loff_t *ppos)74{75 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);76 struct iwl_mvm *mvm = mvmvif->mvm;77 enum iwl_dbgfs_pm_mask param;78 int val, ret;79 80 if (!strncmp("keep_alive=", buf, 11)) {81 if (sscanf(buf + 11, "%d", &val) != 1)82 return -EINVAL;83 param = MVM_DEBUGFS_PM_KEEP_ALIVE;84 } else if (!strncmp("skip_over_dtim=", buf, 15)) {85 if (sscanf(buf + 15, "%d", &val) != 1)86 return -EINVAL;87 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;88 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {89 if (sscanf(buf + 18, "%d", &val) != 1)90 return -EINVAL;91 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;92 } else if (!strncmp("rx_data_timeout=", buf, 16)) {93 if (sscanf(buf + 16, "%d", &val) != 1)94 return -EINVAL;95 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;96 } else if (!strncmp("tx_data_timeout=", buf, 16)) {97 if (sscanf(buf + 16, "%d", &val) != 1)98 return -EINVAL;99 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;100 } else if (!strncmp("lprx=", buf, 5)) {101 if (sscanf(buf + 5, "%d", &val) != 1)102 return -EINVAL;103 param = MVM_DEBUGFS_PM_LPRX_ENA;104 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {105 if (sscanf(buf + 20, "%d", &val) != 1)106 return -EINVAL;107 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <108 POWER_LPRX_RSSI_THRESHOLD_MIN)109 return -EINVAL;110 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;111 } else if (!strncmp("snooze_enable=", buf, 14)) {112 if (sscanf(buf + 14, "%d", &val) != 1)113 return -EINVAL;114 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;115 } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {116 if (sscanf(buf + 18, "%d", &val) != 1)117 return -EINVAL;118 param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;119 } else if (!strncmp("use_ps_poll=", buf, 12)) {120 if (sscanf(buf + 12, "%d", &val) != 1)121 return -EINVAL;122 param = MVM_DEBUGFS_PM_USE_PS_POLL;123 } else {124 return -EINVAL;125 }126 127 mutex_lock(&mvm->mutex);128 iwl_dbgfs_update_pm(mvm, vif, param, val);129 ret = iwl_mvm_power_update_mac(mvm);130 mutex_unlock(&mvm->mutex);131 132 return ret ?: count;133}134 135static ssize_t iwl_dbgfs_tx_pwr_lmt_read(struct file *file,136 char __user *user_buf,137 size_t count, loff_t *ppos)138{139 struct ieee80211_vif *vif = file->private_data;140 char buf[64];141 int bufsz = sizeof(buf);142 int pos;143 144 pos = scnprintf(buf, bufsz, "bss limit = %d\n",145 vif->bss_conf.txpower);146 147 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);148}149 150static ssize_t iwl_dbgfs_pm_params_read(struct file *file,151 char __user *user_buf,152 size_t count, loff_t *ppos)153{154 struct ieee80211_vif *vif = file->private_data;155 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);156 struct iwl_mvm *mvm = mvmvif->mvm;157 char buf[512];158 int bufsz = sizeof(buf);159 int pos;160 161 pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);162 163 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);164}165 166static ssize_t iwl_dbgfs_mac_params_read(struct file *file,167 char __user *user_buf,168 size_t count, loff_t *ppos)169{170 struct ieee80211_vif *vif = file->private_data;171 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);172 struct iwl_mvm *mvm = mvmvif->mvm;173 u8 ap_sta_id;174 struct ieee80211_chanctx_conf *chanctx_conf;175 char buf[512];176 int bufsz = sizeof(buf);177 int pos = 0;178 int i;179 180 mutex_lock(&mvm->mutex);181 182 ap_sta_id = mvmvif->deflink.ap_sta_id;183 184 switch (ieee80211_vif_type_p2p(vif)) {185 case NL80211_IFTYPE_ADHOC:186 pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n");187 break;188 case NL80211_IFTYPE_STATION:189 pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n");190 break;191 case NL80211_IFTYPE_AP:192 pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n");193 break;194 case NL80211_IFTYPE_P2P_CLIENT:195 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n");196 break;197 case NL80211_IFTYPE_P2P_GO:198 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n");199 break;200 case NL80211_IFTYPE_P2P_DEVICE:201 pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n");202 break;203 default:204 break;205 }206 207 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",208 mvmvif->id, mvmvif->color);209 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",210 vif->bss_conf.bssid);211 pos += scnprintf(buf+pos, bufsz-pos, "Load: %d\n",212 mvm->tcm.result.load[mvmvif->id]);213 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");214 for (i = 0; i < ARRAY_SIZE(mvmvif->deflink.queue_params); i++)215 pos += scnprintf(buf+pos, bufsz-pos,216 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",217 i, mvmvif->deflink.queue_params[i].txop,218 mvmvif->deflink.queue_params[i].cw_min,219 mvmvif->deflink.queue_params[i].cw_max,220 mvmvif->deflink.queue_params[i].aifs,221 mvmvif->deflink.queue_params[i].uapsd);222 223 if (vif->type == NL80211_IFTYPE_STATION &&224 ap_sta_id != IWL_MVM_INVALID_STA) {225 struct iwl_mvm_sta *mvm_sta;226 227 mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);228 if (mvm_sta) {229 pos += scnprintf(buf+pos, bufsz-pos,230 "ap_sta_id %d - reduced Tx power %d\n",231 ap_sta_id,232 mvm_sta->bt_reduced_txpower);233 }234 }235 236 rcu_read_lock();237 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);238 if (chanctx_conf)239 pos += scnprintf(buf+pos, bufsz-pos,240 "idle rx chains %d, active rx chains: %d\n",241 chanctx_conf->rx_chains_static,242 chanctx_conf->rx_chains_dynamic);243 rcu_read_unlock();244 245 mutex_unlock(&mvm->mutex);246 247 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);248}249 250static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,251 enum iwl_dbgfs_bf_mask param, int value)252{253 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);254 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;255 256 dbgfs_bf->mask |= param;257 258 switch (param) {259 case MVM_DEBUGFS_BF_ENERGY_DELTA:260 dbgfs_bf->bf_energy_delta = value;261 break;262 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:263 dbgfs_bf->bf_roaming_energy_delta = value;264 break;265 case MVM_DEBUGFS_BF_ROAMING_STATE:266 dbgfs_bf->bf_roaming_state = value;267 break;268 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:269 dbgfs_bf->bf_temp_threshold = value;270 break;271 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:272 dbgfs_bf->bf_temp_fast_filter = value;273 break;274 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:275 dbgfs_bf->bf_temp_slow_filter = value;276 break;277 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:278 dbgfs_bf->bf_enable_beacon_filter = value;279 break;280 case MVM_DEBUGFS_BF_DEBUG_FLAG:281 dbgfs_bf->bf_debug_flag = value;282 break;283 case MVM_DEBUGFS_BF_ESCAPE_TIMER:284 dbgfs_bf->bf_escape_timer = value;285 break;286 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:287 dbgfs_bf->ba_enable_beacon_abort = value;288 break;289 case MVM_DEBUGFS_BA_ESCAPE_TIMER:290 dbgfs_bf->ba_escape_timer = value;291 break;292 }293}294 295static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf,296 size_t count, loff_t *ppos)297{298 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);299 struct iwl_mvm *mvm = mvmvif->mvm;300 enum iwl_dbgfs_bf_mask param;301 int value, ret = 0;302 303 if (!strncmp("bf_energy_delta=", buf, 16)) {304 if (sscanf(buf+16, "%d", &value) != 1)305 return -EINVAL;306 if (value < IWL_BF_ENERGY_DELTA_MIN ||307 value > IWL_BF_ENERGY_DELTA_MAX)308 return -EINVAL;309 param = MVM_DEBUGFS_BF_ENERGY_DELTA;310 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {311 if (sscanf(buf+24, "%d", &value) != 1)312 return -EINVAL;313 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||314 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)315 return -EINVAL;316 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;317 } else if (!strncmp("bf_roaming_state=", buf, 17)) {318 if (sscanf(buf+17, "%d", &value) != 1)319 return -EINVAL;320 if (value < IWL_BF_ROAMING_STATE_MIN ||321 value > IWL_BF_ROAMING_STATE_MAX)322 return -EINVAL;323 param = MVM_DEBUGFS_BF_ROAMING_STATE;324 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {325 if (sscanf(buf+18, "%d", &value) != 1)326 return -EINVAL;327 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||328 value > IWL_BF_TEMP_THRESHOLD_MAX)329 return -EINVAL;330 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;331 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {332 if (sscanf(buf+20, "%d", &value) != 1)333 return -EINVAL;334 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||335 value > IWL_BF_TEMP_FAST_FILTER_MAX)336 return -EINVAL;337 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;338 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {339 if (sscanf(buf+20, "%d", &value) != 1)340 return -EINVAL;341 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||342 value > IWL_BF_TEMP_SLOW_FILTER_MAX)343 return -EINVAL;344 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;345 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {346 if (sscanf(buf+24, "%d", &value) != 1)347 return -EINVAL;348 if (value < 0 || value > 1)349 return -EINVAL;350 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;351 } else if (!strncmp("bf_debug_flag=", buf, 14)) {352 if (sscanf(buf+14, "%d", &value) != 1)353 return -EINVAL;354 if (value < 0 || value > 1)355 return -EINVAL;356 param = MVM_DEBUGFS_BF_DEBUG_FLAG;357 } else if (!strncmp("bf_escape_timer=", buf, 16)) {358 if (sscanf(buf+16, "%d", &value) != 1)359 return -EINVAL;360 if (value < IWL_BF_ESCAPE_TIMER_MIN ||361 value > IWL_BF_ESCAPE_TIMER_MAX)362 return -EINVAL;363 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;364 } else if (!strncmp("ba_escape_timer=", buf, 16)) {365 if (sscanf(buf+16, "%d", &value) != 1)366 return -EINVAL;367 if (value < IWL_BA_ESCAPE_TIMER_MIN ||368 value > IWL_BA_ESCAPE_TIMER_MAX)369 return -EINVAL;370 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;371 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {372 if (sscanf(buf+23, "%d", &value) != 1)373 return -EINVAL;374 if (value < 0 || value > 1)375 return -EINVAL;376 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;377 } else {378 return -EINVAL;379 }380 381 mutex_lock(&mvm->mutex);382 iwl_dbgfs_update_bf(vif, param, value);383 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value)384 ret = iwl_mvm_disable_beacon_filter(mvm, vif);385 else386 ret = iwl_mvm_enable_beacon_filter(mvm, vif);387 mutex_unlock(&mvm->mutex);388 389 return ret ?: count;390}391 392static ssize_t iwl_dbgfs_bf_params_read(struct file *file,393 char __user *user_buf,394 size_t count, loff_t *ppos)395{396 struct ieee80211_vif *vif = file->private_data;397 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);398 char buf[256];399 int pos = 0;400 const size_t bufsz = sizeof(buf);401 struct iwl_beacon_filter_cmd cmd = {402 IWL_BF_CMD_CONFIG_DEFAULTS,403 .bf_enable_beacon_filter =404 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),405 .ba_enable_beacon_abort =406 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),407 };408 409 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);410 if (mvmvif->bf_enabled)411 cmd.bf_enable_beacon_filter = cpu_to_le32(1);412 else413 cmd.bf_enable_beacon_filter = 0;414 415 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",416 le32_to_cpu(cmd.bf_energy_delta));417 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",418 le32_to_cpu(cmd.bf_roaming_energy_delta));419 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",420 le32_to_cpu(cmd.bf_roaming_state));421 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",422 le32_to_cpu(cmd.bf_temp_threshold));423 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",424 le32_to_cpu(cmd.bf_temp_fast_filter));425 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",426 le32_to_cpu(cmd.bf_temp_slow_filter));427 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",428 le32_to_cpu(cmd.bf_enable_beacon_filter));429 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",430 le32_to_cpu(cmd.bf_debug_flag));431 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",432 le32_to_cpu(cmd.bf_escape_timer));433 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",434 le32_to_cpu(cmd.ba_escape_timer));435 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",436 le32_to_cpu(cmd.ba_enable_beacon_abort));437 438 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);439}440 441static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file,442 char __user *user_buf,443 size_t count, loff_t *ppos)444{445 struct ieee80211_vif *vif = file->private_data;446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);447 struct iwl_mvm *mvm = mvmvif->mvm;448 u32 curr_gp2;449 u64 curr_os;450 s64 diff;451 char buf[64];452 const size_t bufsz = sizeof(buf);453 int pos = 0;454 455 mutex_lock(&mvm->mutex);456 iwl_mvm_get_sync_time(mvm, CLOCK_BOOTTIME, &curr_gp2, &curr_os, NULL);457 mutex_unlock(&mvm->mutex);458 459 do_div(curr_os, NSEC_PER_USEC);460 diff = curr_os - curr_gp2;461 pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff);462 463 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);464}465 466static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf,467 size_t count, loff_t *ppos)468{469 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);470 struct iwl_mvm *mvm = mvmvif->mvm;471 u8 value;472 int ret;473 474 ret = kstrtou8(buf, 0, &value);475 if (ret)476 return ret;477 if (value > 1)478 return -EINVAL;479 480 mutex_lock(&mvm->mutex);481 iwl_mvm_update_low_latency(mvm, vif, value, LOW_LATENCY_DEBUGFS);482 mutex_unlock(&mvm->mutex);483 484 return count;485}486 487static ssize_t488iwl_dbgfs_low_latency_force_write(struct ieee80211_vif *vif, char *buf,489 size_t count, loff_t *ppos)490{491 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);492 struct iwl_mvm *mvm = mvmvif->mvm;493 u8 value;494 int ret;495 496 ret = kstrtou8(buf, 0, &value);497 if (ret)498 return ret;499 500 if (value > NUM_LOW_LATENCY_FORCE)501 return -EINVAL;502 503 mutex_lock(&mvm->mutex);504 if (value == LOW_LATENCY_FORCE_UNSET) {505 iwl_mvm_update_low_latency(mvm, vif, false,506 LOW_LATENCY_DEBUGFS_FORCE);507 iwl_mvm_update_low_latency(mvm, vif, false,508 LOW_LATENCY_DEBUGFS_FORCE_ENABLE);509 } else {510 iwl_mvm_update_low_latency(mvm, vif,511 value == LOW_LATENCY_FORCE_ON,512 LOW_LATENCY_DEBUGFS_FORCE);513 iwl_mvm_update_low_latency(mvm, vif, true,514 LOW_LATENCY_DEBUGFS_FORCE_ENABLE);515 }516 mutex_unlock(&mvm->mutex);517 return count;518}519 520static ssize_t iwl_dbgfs_low_latency_read(struct file *file,521 char __user *user_buf,522 size_t count, loff_t *ppos)523{524 struct ieee80211_vif *vif = file->private_data;525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);526 char format[] = "traffic=%d\ndbgfs=%d\nvcmd=%d\nvif_type=%d\n"527 "dbgfs_force_enable=%d\ndbgfs_force=%d\nactual=%d\n";528 529 /*530 * all values in format are boolean so the size of format is enough531 * for holding the result string532 */533 char buf[sizeof(format) + 1] = {};534 int len;535 536 len = scnprintf(buf, sizeof(buf) - 1, format,537 !!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC),538 !!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),539 !!(mvmvif->low_latency & LOW_LATENCY_VCMD),540 !!(mvmvif->low_latency & LOW_LATENCY_VIF_TYPE),541 !!(mvmvif->low_latency &542 LOW_LATENCY_DEBUGFS_FORCE_ENABLE),543 !!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS_FORCE),544 !!(mvmvif->low_latency_actual));545 return simple_read_from_buffer(user_buf, count, ppos, buf, len);546}547 548static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,549 char __user *user_buf,550 size_t count, loff_t *ppos)551{552 struct ieee80211_vif *vif = file->private_data;553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);554 char buf[20];555 int len;556 557 len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_ap_addr);558 return simple_read_from_buffer(user_buf, count, ppos, buf, len);559}560 561static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,562 char *buf, size_t count,563 loff_t *ppos)564{565 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);566 struct iwl_mvm *mvm = mvmvif->mvm;567 bool ret;568 569 mutex_lock(&mvm->mutex);570 ret = mac_pton(buf, mvmvif->uapsd_misbehaving_ap_addr);571 mutex_unlock(&mvm->mutex);572 573 return ret ? count : -EINVAL;574}575 576static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,577 size_t count, loff_t *ppos)578{579 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);580 struct iwl_mvm *mvm = mvmvif->mvm;581 struct ieee80211_bss_conf *link_conf;582 u16 value;583 int link_id, ret = -EINVAL;584 585 ret = kstrtou16(buf, 0, &value);586 if (ret)587 return ret;588 589 mutex_lock(&mvm->mutex);590 591 mvm->dbgfs_rx_phyinfo = value;592 593 for_each_vif_active_link(vif, link_conf, link_id) {594 struct ieee80211_chanctx_conf *chanctx_conf;595 struct cfg80211_chan_def min_def, ap_def;596 struct iwl_mvm_phy_ctxt *phy_ctxt;597 u8 chains_static, chains_dynamic;598 599 rcu_read_lock();600 chanctx_conf = rcu_dereference(link_conf->chanctx_conf);601 if (!chanctx_conf) {602 rcu_read_unlock();603 continue;604 }605 /* A command can't be sent with RCU lock held, so copy606 * everything here and use it after unlocking607 */608 min_def = chanctx_conf->min_def;609 ap_def = chanctx_conf->ap;610 chains_static = chanctx_conf->rx_chains_static;611 chains_dynamic = chanctx_conf->rx_chains_dynamic;612 rcu_read_unlock();613 614 phy_ctxt = mvmvif->link[link_id]->phy_ctxt;615 if (!phy_ctxt)616 continue;617 618 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &min_def, &ap_def,619 chains_static, chains_dynamic);620 }621 622 mutex_unlock(&mvm->mutex);623 624 return ret ?: count;625}626 627static ssize_t iwl_dbgfs_rx_phyinfo_read(struct file *file,628 char __user *user_buf,629 size_t count, loff_t *ppos)630{631 struct ieee80211_vif *vif = file->private_data;632 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);633 char buf[8];634 int len;635 636 len = scnprintf(buf, sizeof(buf), "0x%04x\n",637 mvmvif->mvm->dbgfs_rx_phyinfo);638 639 return simple_read_from_buffer(user_buf, count, ppos, buf, len);640}641 642static void iwl_dbgfs_quota_check(void *data, u8 *mac,643 struct ieee80211_vif *vif)644{645 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);646 int *ret = data;647 648 if (mvmvif->dbgfs_quota_min)649 *ret = -EINVAL;650}651 652static ssize_t iwl_dbgfs_quota_min_write(struct ieee80211_vif *vif, char *buf,653 size_t count, loff_t *ppos)654{655 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);656 struct iwl_mvm *mvm = mvmvif->mvm;657 u16 value;658 int ret;659 660 ret = kstrtou16(buf, 0, &value);661 if (ret)662 return ret;663 664 if (value > 95)665 return -EINVAL;666 667 mutex_lock(&mvm->mutex);668 669 mvmvif->dbgfs_quota_min = 0;670 ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL,671 iwl_dbgfs_quota_check, &ret);672 if (ret == 0) {673 mvmvif->dbgfs_quota_min = value;674 iwl_mvm_update_quotas(mvm, false, NULL);675 }676 mutex_unlock(&mvm->mutex);677 678 return ret ?: count;679}680 681static ssize_t iwl_dbgfs_quota_min_read(struct file *file,682 char __user *user_buf,683 size_t count, loff_t *ppos)684{685 struct ieee80211_vif *vif = file->private_data;686 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);687 char buf[10];688 int len;689 690 len = scnprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);691 692 return simple_read_from_buffer(user_buf, count, ppos, buf, len);693}694 695static ssize_t iwl_dbgfs_max_tx_op_write(struct ieee80211_vif *vif, char *buf,696 size_t count, loff_t *ppos)697{698 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);699 struct iwl_mvm *mvm = mvmvif->mvm;700 u16 value;701 int ret;702 703 ret = kstrtou16(buf, 0, &value);704 if (ret)705 return ret;706 707 mutex_lock(&mvm->mutex);708 mvmvif->max_tx_op = value;709 mutex_unlock(&mvm->mutex);710 711 return count;712}713 714static ssize_t iwl_dbgfs_max_tx_op_read(struct file *file,715 char __user *user_buf,716 size_t count, loff_t *ppos)717{718 struct ieee80211_vif *vif = file->private_data;719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);720 struct iwl_mvm *mvm = mvmvif->mvm;721 char buf[10];722 int len;723 724 mutex_lock(&mvm->mutex);725 len = scnprintf(buf, sizeof(buf), "%hu\n", mvmvif->max_tx_op);726 mutex_unlock(&mvm->mutex);727 728 return simple_read_from_buffer(user_buf, count, ppos, buf, len);729}730 731static ssize_t iwl_dbgfs_int_mlo_scan_write(struct ieee80211_vif *vif,732 char *buf, size_t count,733 loff_t *ppos)734{735 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);736 struct iwl_mvm *mvm = mvmvif->mvm;737 u32 action;738 int ret;739 740 if (!vif->cfg.assoc || !ieee80211_vif_is_mld(vif))741 return -EINVAL;742 743 if (kstrtou32(buf, 0, &action))744 return -EINVAL;745 746 mutex_lock(&mvm->mutex);747 748 if (!action) {749 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);750 } else if (action == 1) {751 ret = iwl_mvm_int_mlo_scan(mvm, vif);752 } else {753 ret = -EINVAL;754 }755 756 mutex_unlock(&mvm->mutex);757 758 return ret ?: count;759}760 761static ssize_t iwl_dbgfs_esr_disable_reason_read(struct file *file,762 char __user *user_buf,763 size_t count, loff_t *ppos)764{765 struct ieee80211_vif *vif = file->private_data;766 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);767 struct iwl_mvm *mvm = mvmvif->mvm;768 unsigned long esr_mask;769 char *buf;770 int bufsz, pos, i;771 ssize_t rv;772 773 mutex_lock(&mvm->mutex);774 esr_mask = mvmvif->esr_disable_reason;775 mutex_unlock(&mvm->mutex);776 777 bufsz = hweight32(esr_mask) * 32 + 40;778 buf = kmalloc(bufsz, GFP_KERNEL);779 if (!buf)780 return -ENOMEM;781 782 pos = scnprintf(buf, bufsz, "EMLSR state: '0x%lx'\nreasons:\n",783 esr_mask);784 for_each_set_bit(i, &esr_mask, BITS_PER_LONG)785 pos += scnprintf(buf + pos, bufsz - pos, " - %s\n",786 iwl_get_esr_state_string(BIT(i)));787 788 rv = simple_read_from_buffer(user_buf, count, ppos, buf, pos);789 kfree(buf);790 return rv;791}792 793static ssize_t iwl_dbgfs_esr_disable_reason_write(struct ieee80211_vif *vif,794 char *buf, size_t count,795 loff_t *ppos)796{797 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);798 struct iwl_mvm *mvm = mvmvif->mvm;799 u32 reason;800 u8 block;801 int ret;802 803 ret = sscanf(buf, "%u %hhu", &reason, &block);804 if (ret < 0)805 return ret;806 807 if (hweight16(reason) != 1 || !(reason & IWL_MVM_BLOCK_ESR_REASONS))808 return -EINVAL;809 810 mutex_lock(&mvm->mutex);811 if (block)812 iwl_mvm_block_esr(mvm, vif, reason,813 iwl_mvm_get_primary_link(vif));814 else815 iwl_mvm_unblock_esr(mvm, vif, reason);816 mutex_unlock(&mvm->mutex);817 818 return count;819}820 821#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \822 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)823#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \824 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)825#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \826 debugfs_create_file(#name, mode, parent, vif, \827 &iwl_dbgfs_##name##_ops); \828 } while (0)829 830MVM_DEBUGFS_READ_FILE_OPS(mac_params);831MVM_DEBUGFS_READ_FILE_OPS(tx_pwr_lmt);832MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);833MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);834MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);835MVM_DEBUGFS_WRITE_FILE_OPS(low_latency_force, 10);836MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);837MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);838MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);839MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);840MVM_DEBUGFS_READ_WRITE_FILE_OPS(max_tx_op, 10);841MVM_DEBUGFS_WRITE_FILE_OPS(int_mlo_scan, 32);842MVM_DEBUGFS_READ_WRITE_FILE_OPS(esr_disable_reason, 32);843 844void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif)845{846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);847 struct dentry *dbgfs_dir = vif->debugfs_dir;848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);849 850 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);851 if (IS_ERR_OR_NULL(mvmvif->dbgfs_dir)) {852 IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",853 dbgfs_dir);854 return;855 }856 857 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&858 ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||859 (vif->type == NL80211_IFTYPE_STATION && vif->p2p)))860 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, 0600);861 862 MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, 0400);863 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, 0400);864 MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, 0600);865 MVM_DEBUGFS_ADD_FILE_VIF(low_latency_force, mvmvif->dbgfs_dir, 0600);866 MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir, 0600);867 MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600);868 MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600);869 MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400);870 MVM_DEBUGFS_ADD_FILE_VIF(max_tx_op, mvmvif->dbgfs_dir, 0600);871 debugfs_create_bool("ftm_unprotected", 0200, mvmvif->dbgfs_dir,872 &mvmvif->ftm_unprotected);873 MVM_DEBUGFS_ADD_FILE_VIF(int_mlo_scan, mvmvif->dbgfs_dir, 0200);874 MVM_DEBUGFS_ADD_FILE_VIF(esr_disable_reason, mvmvif->dbgfs_dir, 0600);875 876 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&877 mvmvif == mvm->bf_allowed_vif)878 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, 0600);879}880 881void iwl_mvm_vif_dbgfs_add_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)882{883 struct dentry *dbgfs_dir = vif->debugfs_dir;884 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);885 char buf[3 * 3 + 11 + (NL80211_WIPHY_NAME_MAXLEN + 1) +886 (7 + IFNAMSIZ + 1) + 6 + 1];887 char name[7 + IFNAMSIZ + 1];888 889 /* this will happen in monitor mode */890 if (!dbgfs_dir)891 return;892 893 /*894 * Create symlink for convenience pointing to interface specific895 * debugfs entries for the driver. For example, under896 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/897 * find898 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/899 */900 snprintf(name, sizeof(name), "%pd", dbgfs_dir);901 snprintf(buf, sizeof(buf), "../../../%pd3/iwlmvm", dbgfs_dir);902 903 mvmvif->dbgfs_slink =904 debugfs_create_symlink(name, mvm->debugfs_dir, buf);905}906 907void iwl_mvm_vif_dbgfs_rm_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)908{909 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);910 911 debugfs_remove(mvmvif->dbgfs_slink);912 mvmvif->dbgfs_slink = NULL;913}914 915#define MVM_DEBUGFS_WRITE_LINK_FILE_OPS(name, bufsz) \916 _MVM_DEBUGFS_WRITE_FILE_OPS(link_##name, bufsz, \917 struct ieee80211_bss_conf)918#define MVM_DEBUGFS_READ_WRITE_LINK_FILE_OPS(name, bufsz) \919 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(link_##name, bufsz, \920 struct ieee80211_bss_conf)921#define MVM_DEBUGFS_ADD_LINK_FILE(name, parent, mode) \922 debugfs_create_file(#name, mode, parent, link_conf, \923 &iwl_dbgfs_link_##name##_ops)924 925static void iwl_mvm_debugfs_add_link_files(struct ieee80211_vif *vif,926 struct ieee80211_bss_conf *link_conf,927 struct dentry *mvm_dir)928{929 /* Add per-link files here*/930}931 932void iwl_mvm_link_add_debugfs(struct ieee80211_hw *hw,933 struct ieee80211_vif *vif,934 struct ieee80211_bss_conf *link_conf,935 struct dentry *dir)936{937 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);938 struct iwl_mvm *mvm = mvmvif->mvm;939 unsigned int link_id = link_conf->link_id;940 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id];941 struct dentry *mvm_dir;942 943 if (WARN_ON(!link_info) || !dir)944 return;945 946 if (dir == vif->debugfs_dir) {947 WARN_ON(!mvmvif->dbgfs_dir);948 mvm_dir = mvmvif->dbgfs_dir;949 } else {950 mvm_dir = debugfs_create_dir("iwlmvm", dir);951 if (IS_ERR_OR_NULL(mvm_dir)) {952 IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",953 dir);954 return;955 }956 }957 958 iwl_mvm_debugfs_add_link_files(vif, link_conf, mvm_dir);959}960