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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: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Arik Nemtsov 2014-06-10 19:56:27 +03:00 committed by Emmanuel Grumbach
parent fa3d07e47f
commit f59e0e3cd8
1 changed files with 27 additions and 0 deletions
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27
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -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;