From bd1ba664147ae271e592aa90266cf9aba6efe116 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 13 Nov 2014 20:53:45 +0100 Subject: [PATCH] iwlwifi: mvm: move U-APSD decision to authentication In order to change the usage of U-APSD on the fly later, move the enabling condition into a new function that is called when authenticated. This allows the module parameter to become writable, it won't take effect immediately but at least on the next association the new value will be used. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-drv.c | 2 +- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 19 +++++++++++++++---- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c index 0d3472679e4d..e3af724e0e0a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/iwlwifi/iwl-drv.c @@ -1490,7 +1490,7 @@ module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, - bool, S_IRUGO); + bool, S_IRUGO | S_IWUSR); #ifdef CONFIG_IWLWIFI_UAPSD MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)"); #else diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index 076a781ceeb0..d13903eff2ec 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -1354,10 +1354,6 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, mvm->bf_allowed_vif = mvmvif; vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | IEEE80211_VIF_SUPPORTS_CQM_RSSI; - if (mvm->fw->ucode_capa.flags & - IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT && - !iwlwifi_mod_params.uapsd_disable) - vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; } /* @@ -2305,6 +2301,20 @@ static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, mutex_unlock(&mvm->mutex); } +static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + const u8 *bssid) +{ + if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) + return; + + if (iwlwifi_mod_params.uapsd_disable) { + vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; + return; + } + + vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; +} + static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -2364,6 +2374,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, * Reset EBS status here assuming environment has been changed. */ mvm->last_ebs_successful = true; + iwl_mvm_check_uapsd(mvm, vif, sta->addr); ret = 0; } else if (old_state == IEEE80211_STA_AUTH && new_state == IEEE80211_STA_ASSOC) { -- 2.39.5