From: Luciano Coelho Date: Fri, 20 Mar 2015 14:11:28 +0000 (+0200) Subject: iwlwifi: mvm: differentiate net-detect from sched scan X-Git-Tag: v4.2-rc1~130^2~139^2^2~84 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=19945dfb94fafe50d9e6d1b1d0884c9ec7e3c84c;p=platform%2Fkernel%2Flinux-exynos.git iwlwifi: mvm: differentiate net-detect from sched scan Net-detect scans were using the same type as sched scan, which was causing the driver to return -EBUSY and prevent the system from suspending if there was an ongoing scheduled scan. To avoid this, add a new type for net-detect and don't stop anything when it is requested, so that the existing scheduled scan will be resumed when the system wakes up. Signed-off-by: Luciano Coelho Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c index e82a47b..36bf6a8 100644 --- a/drivers/net/wireless/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/iwlwifi/mvm/d3.c @@ -981,7 +981,8 @@ iwl_mvm_netdetect_config(struct iwl_mvm *mvm, if (ret) return ret; - ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies); + ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, + IWL_MVM_SCAN_NETDETECT); if (ret) return ret; diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index ff3273a..c136fe0 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -2743,7 +2743,7 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, goto out; } - ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies); + ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); out: mutex_unlock(&mvm->mutex); diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index bbe4d98..a8f51a8 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -448,14 +448,18 @@ extern const u8 tid_to_mac80211_ac[]; enum iwl_scan_status { IWL_MVM_SCAN_REGULAR = BIT(0), IWL_MVM_SCAN_SCHED = BIT(1), + IWL_MVM_SCAN_NETDETECT = BIT(2), IWL_MVM_SCAN_STOPPING_REGULAR = BIT(8), IWL_MVM_SCAN_STOPPING_SCHED = BIT(9), + IWL_MVM_SCAN_STOPPING_NETDETECT = BIT(10), IWL_MVM_SCAN_REGULAR_MASK = IWL_MVM_SCAN_REGULAR | IWL_MVM_SCAN_STOPPING_REGULAR, IWL_MVM_SCAN_SCHED_MASK = IWL_MVM_SCAN_SCHED | IWL_MVM_SCAN_STOPPING_SCHED, + IWL_MVM_SCAN_NETDETECT_MASK = IWL_MVM_SCAN_NETDETECT | + IWL_MVM_SCAN_STOPPING_NETDETECT, IWL_MVM_SCAN_STOPPING_MASK = 0xff00, IWL_MVM_SCAN_MASK = 0x00ff, @@ -1179,7 +1183,8 @@ int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm, int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct cfg80211_sched_scan_request *req, - struct ieee80211_scan_ies *ies); + struct ieee80211_scan_ies *ies, + int type); int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify); int iwl_mvm_rx_scan_offload_results(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 3fe398e..e39f2d1 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -1533,6 +1533,13 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK) return -EBUSY; return iwl_mvm_cancel_scan(mvm); + case IWL_MVM_SCAN_NETDETECT: + /* No need to stop anything for net-detect since the + * firmware is restarted anyway. This way, any sched + * scans that were running will be restarted when we + * resume. + */ + return 0; default: WARN_ON(1); break; @@ -1574,7 +1581,8 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct cfg80211_sched_scan_request *req, - struct ieee80211_scan_ies *ies) + struct ieee80211_scan_ies *ies, + int type) { int ret; @@ -1585,7 +1593,7 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, return -EBUSY; } - ret = iwl_mvm_check_running_scans(mvm, IWL_MVM_SCAN_SCHED); + ret = iwl_mvm_check_running_scans(mvm, type); if (ret) return ret;