iwlwifi: mvm: protect TDLS discovery session

Use the new mac80211 callback to protect a TDLS discovery session so we
can hear the discovery-response packet.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 57945fe062166b0382a1bc29ca96219e341f331a..1acad838fc5cd2f5ef8a7ebc7fb74a769a38e4b7 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2017,6 +2017,18 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
        mutex_unlock(&mvm->mutex);
 }
 
+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;
+
+       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);
+       mutex_unlock(&mvm->mutex);
+}
+
 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
                                        struct ieee80211_vif *vif,
                                        struct cfg80211_sched_scan_request *req,
@@ -2781,6 +2793,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
        .sta_rc_update = iwl_mvm_sta_rc_update,
        .conf_tx = iwl_mvm_mac_conf_tx,
        .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
+       .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
        .flush = iwl_mvm_mac_flush,
        .sched_scan_start = iwl_mvm_mac_sched_scan_start,
        .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,