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Commit f59e0e3c authored by Arik Nemtsov's avatar Arik Nemtsov Committed by Emmanuel Grumbach
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iwlwifi: mvm: teardown TDLS peers when initiating DCM 



The FW currently doesn't optimally support TDLS in DCM mode. Teardown
all TDLS peers when we have more than a single phy context.

Signed-off-by: default avatarArik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent fa3d07e4

drivers/net/wireless/iwlwifi/mvm/mac80211.c

+27 −0
Original line number Diff line number Diff line
@@ -1885,6 +1885,28 @@ static void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, 
		iwl_mvm_power_update_mac(mvm);

}



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 int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,

				 struct ieee80211_vif *vif,

				 struct ieee80211_sta *sta,
@@ -1954,6 +1976,11 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 
					     true);

	} else if (old_state == IEEE80211_STA_ASSOC &&

		   new_state == IEEE80211_STA_AUTHORIZED) {



		/* we don't support TDLS during DCM */

		if (iwl_mvm_phy_ctx_count(mvm) > 1)

			iwl_mvm_teardown_tdls_peers(mvm);



		/* enable beacon filtering */

		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));

		ret = 0;