| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include "mvm.h" |
| #include "debugfs.h" |
| |
| static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| enum iwl_dbgfs_pm_mask param, int val) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm; |
| |
| dbgfs_pm->mask |= param; |
| |
| switch (param) { |
| case MVM_DEBUGFS_PM_KEEP_ALIVE: { |
| struct ieee80211_hw *hw = mvm->hw; |
| int dtimper = hw->conf.ps_dtim_period ?: 1; |
| int dtimper_msec = dtimper * vif->bss_conf.beacon_int; |
| |
| IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val); |
| if (val * MSEC_PER_SEC < 3 * dtimper_msec) |
| IWL_WARN(mvm, |
| "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n", |
| val * MSEC_PER_SEC, 3 * dtimper_msec); |
| dbgfs_pm->keep_alive_seconds = val; |
| break; |
| } |
| case MVM_DEBUGFS_PM_SKIP_OVER_DTIM: |
| IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n", |
| val ? "enabled" : "disabled"); |
| dbgfs_pm->skip_over_dtim = val; |
| break; |
| case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS: |
| IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val); |
| dbgfs_pm->skip_dtim_periods = val; |
| break; |
| case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT: |
| IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val); |
| dbgfs_pm->rx_data_timeout = val; |
| break; |
| case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT: |
| IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val); |
| dbgfs_pm->tx_data_timeout = val; |
| break; |
| case MVM_DEBUGFS_PM_DISABLE_POWER_OFF: |
| IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val); |
| dbgfs_pm->disable_power_off = val; |
| break; |
| case MVM_DEBUGFS_PM_LPRX_ENA: |
| IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled"); |
| dbgfs_pm->lprx_ena = val; |
| break; |
| case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD: |
| IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val); |
| dbgfs_pm->lprx_rssi_threshold = val; |
| break; |
| case MVM_DEBUGFS_PM_SNOOZE_ENABLE: |
| IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val); |
| dbgfs_pm->snooze_ena = val; |
| break; |
| case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING: |
| IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val); |
| dbgfs_pm->uapsd_misbehaving = val; |
| break; |
| } |
| } |
| |
| static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm *mvm = mvmvif->mvm; |
| enum iwl_dbgfs_pm_mask param; |
| int val, ret; |
| |
| if (!strncmp("keep_alive=", buf, 11)) { |
| if (sscanf(buf + 11, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_KEEP_ALIVE; |
| } else if (!strncmp("skip_over_dtim=", buf, 15)) { |
| if (sscanf(buf + 15, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM; |
| } else if (!strncmp("skip_dtim_periods=", buf, 18)) { |
| if (sscanf(buf + 18, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS; |
| } else if (!strncmp("rx_data_timeout=", buf, 16)) { |
| if (sscanf(buf + 16, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT; |
| } else if (!strncmp("tx_data_timeout=", buf, 16)) { |
| if (sscanf(buf + 16, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT; |
| } else if (!strncmp("disable_power_off=", buf, 18) && |
| !(mvm->fw->ucode_capa.flags & |
| IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)) { |
| if (sscanf(buf + 18, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF; |
| } else if (!strncmp("lprx=", buf, 5)) { |
| if (sscanf(buf + 5, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_LPRX_ENA; |
| } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) { |
| if (sscanf(buf + 20, "%d", &val) != 1) |
| return -EINVAL; |
| if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val < |
| POWER_LPRX_RSSI_THRESHOLD_MIN) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD; |
| } else if (!strncmp("snooze_enable=", buf, 14)) { |
| if (sscanf(buf + 14, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_SNOOZE_ENABLE; |
| } else if (!strncmp("uapsd_misbehaving=", buf, 18)) { |
| if (sscanf(buf + 18, "%d", &val) != 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING; |
| } else { |
| return -EINVAL; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| iwl_dbgfs_update_pm(mvm, vif, param, val); |
| ret = iwl_mvm_power_update_mode(mvm, vif); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret ?: count; |
| } |
| |
| static ssize_t iwl_dbgfs_pm_params_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_vif *vif = file->private_data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm *mvm = mvmvif->mvm; |
| char buf[512]; |
| int bufsz = sizeof(buf); |
| int pos; |
| |
| pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_mac_params_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_vif *vif = file->private_data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm *mvm = mvmvif->mvm; |
| u8 ap_sta_id; |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| char buf[512]; |
| int bufsz = sizeof(buf); |
| int pos = 0; |
| int i; |
| |
| mutex_lock(&mvm->mutex); |
| |
| ap_sta_id = mvmvif->ap_sta_id; |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n", |
| mvmvif->id, mvmvif->color); |
| pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n", |
| vif->bss_conf.bssid); |
| pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n"); |
| for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n", |
| i, mvmvif->queue_params[i].txop, |
| mvmvif->queue_params[i].cw_min, |
| mvmvif->queue_params[i].cw_max, |
| mvmvif->queue_params[i].aifs, |
| mvmvif->queue_params[i].uapsd); |
| |
| if (vif->type == NL80211_IFTYPE_STATION && |
| ap_sta_id != IWL_MVM_STATION_COUNT) { |
| struct ieee80211_sta *sta; |
| struct iwl_mvm_sta *mvm_sta; |
| |
| sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id], |
| lockdep_is_held(&mvm->mutex)); |
| mvm_sta = (void *)sta->drv_priv; |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "ap_sta_id %d - reduced Tx power %d\n", |
| ap_sta_id, mvm_sta->bt_reduced_txpower); |
| } |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| if (chanctx_conf) |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "idle rx chains %d, active rx chains: %d\n", |
| chanctx_conf->rx_chains_static, |
| chanctx_conf->rx_chains_dynamic); |
| rcu_read_unlock(); |
| |
| mutex_unlock(&mvm->mutex); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif, |
| enum iwl_dbgfs_bf_mask param, int value) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; |
| |
| dbgfs_bf->mask |= param; |
| |
| switch (param) { |
| case MVM_DEBUGFS_BF_ENERGY_DELTA: |
| dbgfs_bf->bf_energy_delta = value; |
| break; |
| case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA: |
| dbgfs_bf->bf_roaming_energy_delta = value; |
| break; |
| case MVM_DEBUGFS_BF_ROAMING_STATE: |
| dbgfs_bf->bf_roaming_state = value; |
| break; |
| case MVM_DEBUGFS_BF_TEMP_THRESHOLD: |
| dbgfs_bf->bf_temp_threshold = value; |
| break; |
| case MVM_DEBUGFS_BF_TEMP_FAST_FILTER: |
| dbgfs_bf->bf_temp_fast_filter = value; |
| break; |
| case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER: |
| dbgfs_bf->bf_temp_slow_filter = value; |
| break; |
| case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER: |
| dbgfs_bf->bf_enable_beacon_filter = value; |
| break; |
| case MVM_DEBUGFS_BF_DEBUG_FLAG: |
| dbgfs_bf->bf_debug_flag = value; |
| break; |
| case MVM_DEBUGFS_BF_ESCAPE_TIMER: |
| dbgfs_bf->bf_escape_timer = value; |
| break; |
| case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT: |
| dbgfs_bf->ba_enable_beacon_abort = value; |
| break; |
| case MVM_DEBUGFS_BA_ESCAPE_TIMER: |
| dbgfs_bf->ba_escape_timer = value; |
| break; |
| } |
| } |
| |
| static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm *mvm = mvmvif->mvm; |
| enum iwl_dbgfs_bf_mask param; |
| int value, ret = 0; |
| |
| if (!strncmp("bf_energy_delta=", buf, 16)) { |
| if (sscanf(buf+16, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_ENERGY_DELTA_MIN || |
| value > IWL_BF_ENERGY_DELTA_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_ENERGY_DELTA; |
| } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) { |
| if (sscanf(buf+24, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN || |
| value > IWL_BF_ROAMING_ENERGY_DELTA_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA; |
| } else if (!strncmp("bf_roaming_state=", buf, 17)) { |
| if (sscanf(buf+17, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_ROAMING_STATE_MIN || |
| value > IWL_BF_ROAMING_STATE_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_ROAMING_STATE; |
| } else if (!strncmp("bf_temp_threshold=", buf, 18)) { |
| if (sscanf(buf+18, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_TEMP_THRESHOLD_MIN || |
| value > IWL_BF_TEMP_THRESHOLD_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_TEMP_THRESHOLD; |
| } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) { |
| if (sscanf(buf+20, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_TEMP_FAST_FILTER_MIN || |
| value > IWL_BF_TEMP_FAST_FILTER_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER; |
| } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) { |
| if (sscanf(buf+20, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_TEMP_SLOW_FILTER_MIN || |
| value > IWL_BF_TEMP_SLOW_FILTER_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER; |
| } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) { |
| if (sscanf(buf+24, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < 0 || value > 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER; |
| } else if (!strncmp("bf_debug_flag=", buf, 14)) { |
| if (sscanf(buf+14, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < 0 || value > 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_DEBUG_FLAG; |
| } else if (!strncmp("bf_escape_timer=", buf, 16)) { |
| if (sscanf(buf+16, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BF_ESCAPE_TIMER_MIN || |
| value > IWL_BF_ESCAPE_TIMER_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BF_ESCAPE_TIMER; |
| } else if (!strncmp("ba_escape_timer=", buf, 16)) { |
| if (sscanf(buf+16, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < IWL_BA_ESCAPE_TIMER_MIN || |
| value > IWL_BA_ESCAPE_TIMER_MAX) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BA_ESCAPE_TIMER; |
| } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) { |
| if (sscanf(buf+23, "%d", &value) != 1) |
| return -EINVAL; |
| if (value < 0 || value > 1) |
| return -EINVAL; |
| param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT; |
| } else { |
| return -EINVAL; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| iwl_dbgfs_update_bf(vif, param, value); |
| if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) |
| ret = iwl_mvm_disable_beacon_filter(mvm, vif); |
| else |
| ret = iwl_mvm_enable_beacon_filter(mvm, vif); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret ?: count; |
| } |
| |
| static ssize_t iwl_dbgfs_bf_params_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_vif *vif = file->private_data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| char buf[256]; |
| int pos = 0; |
| const size_t bufsz = sizeof(buf); |
| struct iwl_beacon_filter_cmd cmd = { |
| IWL_BF_CMD_CONFIG_DEFAULTS, |
| .bf_enable_beacon_filter = |
| cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT), |
| .ba_enable_beacon_abort = |
| cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT), |
| }; |
| |
| iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd); |
| if (mvmvif->bf_data.bf_enabled) |
| cmd.bf_enable_beacon_filter = cpu_to_le32(1); |
| else |
| cmd.bf_enable_beacon_filter = 0; |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n", |
| le32_to_cpu(cmd.bf_energy_delta)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n", |
| le32_to_cpu(cmd.bf_roaming_energy_delta)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n", |
| le32_to_cpu(cmd.bf_roaming_state)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n", |
| le32_to_cpu(cmd.bf_temp_threshold)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n", |
| le32_to_cpu(cmd.bf_temp_fast_filter)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n", |
| le32_to_cpu(cmd.bf_temp_slow_filter)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n", |
| le32_to_cpu(cmd.bf_enable_beacon_filter)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n", |
| le32_to_cpu(cmd.bf_debug_flag)); |
| pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n", |
| le32_to_cpu(cmd.bf_escape_timer)); |
| pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n", |
| le32_to_cpu(cmd.ba_escape_timer)); |
| pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n", |
| le32_to_cpu(cmd.ba_enable_beacon_abort)); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ |
| _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) |
| #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ |
| _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) |
| #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \ |
| if (!debugfs_create_file(#name, mode, parent, vif, \ |
| &iwl_dbgfs_##name##_ops)) \ |
| goto err; \ |
| } while (0) |
| |
| MVM_DEBUGFS_READ_FILE_OPS(mac_params); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256); |
| |
| void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct dentry *dbgfs_dir = vif->debugfs_dir; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| char buf[100]; |
| |
| /* |
| * Check if debugfs directory already exist before creating it. |
| * This may happen when, for example, resetting hw or suspend-resume |
| */ |
| if (!dbgfs_dir || mvmvif->dbgfs_dir) |
| return; |
| |
| mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir); |
| mvmvif->mvm = mvm; |
| |
| if (!mvmvif->dbgfs_dir) { |
| IWL_ERR(mvm, "Failed to create debugfs directory under %s\n", |
| dbgfs_dir->d_name.name); |
| return; |
| } |
| |
| if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM && |
| ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) || |
| (vif->type == NL80211_IFTYPE_STATION && vif->p2p && |
| mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS))) |
| MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR | |
| S_IRUSR); |
| |
| MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, |
| S_IRUSR); |
| |
| if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && |
| mvmvif == mvm->bf_allowed_vif) |
| MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, |
| S_IRUSR | S_IWUSR); |
| |
| /* |
| * Create symlink for convenience pointing to interface specific |
| * debugfs entries for the driver. For example, under |
| * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/ |
| * find |
| * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/ |
| */ |
| snprintf(buf, 100, "../../../%s/%s/%s/%s", |
| dbgfs_dir->d_parent->d_parent->d_name.name, |
| dbgfs_dir->d_parent->d_name.name, |
| dbgfs_dir->d_name.name, |
| mvmvif->dbgfs_dir->d_name.name); |
| |
| mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, |
| mvm->debugfs_dir, buf); |
| if (!mvmvif->dbgfs_slink) |
| IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n", |
| dbgfs_dir->d_name.name); |
| return; |
| err: |
| IWL_ERR(mvm, "Can't create debugfs entity\n"); |
| } |
| |
| void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| debugfs_remove(mvmvif->dbgfs_slink); |
| mvmvif->dbgfs_slink = NULL; |
| |
| debugfs_remove_recursive(mvmvif->dbgfs_dir); |
| mvmvif->dbgfs_dir = NULL; |
| } |