From: Arik Nemtsov Date: Sun, 7 Sep 2014 16:18:31 +0000 (+0300) Subject: iwlwifi: mvm: move TDLS code to separate file X-Git-Tag: firefly_0821_release~176^2~3001^2~75^2~134^2~4 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d4317252330d9d0b24a8d707270c38cf3c0943ad;p=firefly-linux-kernel-4.4.55.git iwlwifi: mvm: move TDLS code to separate file The upcoming TDLS channel-switch functionality is big enough to warrant a separate file. Move existing related functions to the new file. Signed-off-by: Arik Nemtsov Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/mvm/Makefile b/drivers/net/wireless/iwlwifi/mvm/Makefile index a28235913c2c..2d7c3ea3c4f8 100644 --- a/drivers/net/wireless/iwlwifi/mvm/Makefile +++ b/drivers/net/wireless/iwlwifi/mvm/Makefile @@ -3,7 +3,7 @@ iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o iwlmvm-y += utils.o rx.o tx.o binding.o quota.o sta.o sf.o iwlmvm-y += scan.o time-event.o rs.o iwlmvm-y += power.o coex.o coex_legacy.o -iwlmvm-y += tt.o offloading.o +iwlmvm-y += tt.o offloading.o tdls.o iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o debugfs-vif.o iwlmvm-$(CONFIG_IWLWIFI_LEDS) += led.o iwlmvm-$(CONFIG_PM_SLEEP) += d3.o diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index 56901f86ba3d..a3bb4a012beb 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -1420,28 +1420,6 @@ static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, } #endif -static void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm) -{ - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvmsta; - int i; - - lockdep_assert_held(&mvm->mutex); - - for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], - lockdep_is_held(&mvm->mutex)); - if (!sta || IS_ERR(sta) || !sta->tdls) - continue; - - mvmsta = iwl_mvm_sta_from_mac80211(sta); - ieee80211_tdls_oper_request(mvmsta->vif, sta->addr, - NL80211_TDLS_TEARDOWN, - WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED, - GFP_KERNEL); - } -} - static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, @@ -1970,48 +1948,6 @@ static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, mutex_unlock(&mvm->mutex); } -int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif) -{ - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvmsta; - int count = 0; - int i; - - lockdep_assert_held(&mvm->mutex); - - for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], - lockdep_is_held(&mvm->mutex)); - if (!sta || IS_ERR(sta) || !sta->tdls) - continue; - - if (vif) { - mvmsta = iwl_mvm_sta_from_mac80211(sta); - if (mvmsta->vif != vif) - continue; - } - - count++; - } - - return count; -} - -static void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - bool sta_added) -{ - int tdls_sta_cnt = iwl_mvm_tdls_sta_count(mvm, vif); - - /* - * Disable ps when the first TDLS sta is added and re-enable it - * when the last TDLS sta is removed - */ - if ((tdls_sta_cnt == 1 && sta_added) || - (tdls_sta_cnt == 0 && !sta_added)) - iwl_mvm_power_update_mac(mvm); -} - static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -2185,27 +2121,6 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); } -static void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - u32 duration = 2 * vif->bss_conf.dtim_period * vif->bss_conf.beacon_int; - - /* - * iwl_mvm_protect_session() reads directly from the device - * (the system time), so make sure it is available. - */ - if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_TDLS)) - return; - - mutex_lock(&mvm->mutex); - /* Protect the session to hear the TDLS setup response on the channel */ - iwl_mvm_protect_session(mvm, vif, duration, duration, 100, true); - mutex_unlock(&mvm->mutex); - - iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_TDLS); -} - static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_sched_scan_request *req, diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index 1fdebb8f797e..6eb1f85b8805 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -1161,6 +1161,11 @@ int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif, /* TDLS */ int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif); +void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm); +void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool sta_added); +void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error); #ifdef CONFIG_IWLWIFI_DEBUGFS diff --git a/drivers/net/wireless/iwlwifi/mvm/tdls.c b/drivers/net/wireless/iwlwifi/mvm/tdls.c new file mode 100644 index 000000000000..66c82df2d0a1 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/tdls.c @@ -0,0 +1,149 @@ +/****************************************************************************** + * + * 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) 2014 Intel Mobile Communications GmbH + * + * 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 + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Mobile Communications GmbH + * 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 "time-event.h" + +void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm) +{ + struct ieee80211_sta *sta; + struct iwl_mvm_sta *mvmsta; + int i; + + lockdep_assert_held(&mvm->mutex); + + for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], + lockdep_is_held(&mvm->mutex)); + if (!sta || IS_ERR(sta) || !sta->tdls) + continue; + + mvmsta = iwl_mvm_sta_from_mac80211(sta); + ieee80211_tdls_oper_request(mvmsta->vif, sta->addr, + NL80211_TDLS_TEARDOWN, + WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED, + GFP_KERNEL); + } +} + +int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ + struct ieee80211_sta *sta; + struct iwl_mvm_sta *mvmsta; + int count = 0; + int i; + + lockdep_assert_held(&mvm->mutex); + + for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], + lockdep_is_held(&mvm->mutex)); + if (!sta || IS_ERR(sta) || !sta->tdls) + continue; + + if (vif) { + mvmsta = iwl_mvm_sta_from_mac80211(sta); + if (mvmsta->vif != vif) + continue; + } + + count++; + } + + return count; +} + +void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool sta_added) +{ + int tdls_sta_cnt = iwl_mvm_tdls_sta_count(mvm, vif); + + /* + * Disable ps when the first TDLS sta is added and re-enable it + * when the last TDLS sta is removed + */ + if ((tdls_sta_cnt == 1 && sta_added) || + (tdls_sta_cnt == 0 && !sta_added)) + iwl_mvm_power_update_mac(mvm); +} + +void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + u32 duration = 2 * vif->bss_conf.dtim_period * vif->bss_conf.beacon_int; + + /* + * iwl_mvm_protect_session() reads directly from the device + * (the system time), so make sure it is available. + */ + if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_TDLS)) + return; + + mutex_lock(&mvm->mutex); + /* Protect the session to hear the TDLS setup response on the channel */ + iwl_mvm_protect_session(mvm, vif, duration, duration, 100, true); + mutex_unlock(&mvm->mutex); + + iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_TDLS); +}