forked from Minki/linux
7f09d70436
There's really no reason to use void *dbgfs_data rather than a struct iwl_mvm *mvm, so do that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
191 lines
6.6 KiB
C
191 lines
6.6 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include "mvm.h"
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#include "debugfs.h"
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static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_vif *vif = file->private_data;
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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struct iwl_mvm *mvm = mvmvif->mvm;
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u8 ap_sta_id;
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struct ieee80211_chanctx_conf *chanctx_conf;
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char buf[512];
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int bufsz = sizeof(buf);
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int pos = 0;
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int i;
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mutex_lock(&mvm->mutex);
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ap_sta_id = mvmvif->ap_sta_id;
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pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
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mvmvif->id, mvmvif->color);
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pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
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vif->bss_conf.bssid);
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pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
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for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
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pos += scnprintf(buf+pos, bufsz-pos,
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"\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
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i, mvmvif->queue_params[i].txop,
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mvmvif->queue_params[i].cw_min,
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mvmvif->queue_params[i].cw_max,
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mvmvif->queue_params[i].aifs,
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mvmvif->queue_params[i].uapsd);
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if (vif->type == NL80211_IFTYPE_STATION &&
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ap_sta_id != IWL_MVM_STATION_COUNT) {
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struct ieee80211_sta *sta;
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struct iwl_mvm_sta *mvm_sta;
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sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
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lockdep_is_held(&mvm->mutex));
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mvm_sta = (void *)sta->drv_priv;
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pos += scnprintf(buf+pos, bufsz-pos,
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"ap_sta_id %d - reduced Tx power %d\n",
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ap_sta_id, mvm_sta->bt_reduced_txpower);
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}
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rcu_read_lock();
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chanctx_conf = rcu_dereference(vif->chanctx_conf);
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if (chanctx_conf)
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pos += scnprintf(buf+pos, bufsz-pos,
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"idle rx chains %d, active rx chains: %d\n",
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chanctx_conf->rx_chains_static,
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chanctx_conf->rx_chains_dynamic);
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rcu_read_unlock();
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mutex_unlock(&mvm->mutex);
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return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}
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#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
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if (!debugfs_create_file(#name, mode, parent, vif, \
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&iwl_dbgfs_##name##_ops)) \
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goto err; \
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} while (0)
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MVM_DEBUGFS_READ_FILE_OPS(mac_params);
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void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
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{
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struct dentry *dbgfs_dir = vif->debugfs_dir;
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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char buf[100];
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/*
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* Check if debugfs directory already exist before creating it.
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* This may happen when, for example, resetting hw or suspend-resume
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*/
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if (!dbgfs_dir || mvmvif->dbgfs_dir)
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return;
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mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
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mvmvif->mvm = mvm;
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if (!mvmvif->dbgfs_dir) {
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IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
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dbgfs_dir->d_name.name);
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return;
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}
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MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
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S_IRUSR);
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/*
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* Create symlink for convenience pointing to interface specific
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* debugfs entries for the driver. For example, under
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* /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
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* find
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* netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
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*/
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snprintf(buf, 100, "../../../%s/%s/%s/%s",
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dbgfs_dir->d_parent->d_parent->d_name.name,
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dbgfs_dir->d_parent->d_name.name,
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dbgfs_dir->d_name.name,
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mvmvif->dbgfs_dir->d_name.name);
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mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
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mvm->debugfs_dir, buf);
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if (!mvmvif->dbgfs_slink)
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IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
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dbgfs_dir->d_name.name);
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return;
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err:
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IWL_ERR(mvm, "Can't create debugfs entity\n");
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}
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void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
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{
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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debugfs_remove(mvmvif->dbgfs_slink);
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mvmvif->dbgfs_slink = NULL;
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debugfs_remove_recursive(mvmvif->dbgfs_dir);
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mvmvif->dbgfs_dir = NULL;
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}
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