From 792211266379ea6885d97c55b8d73e1bfecb7d54 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Sun, 25 Nov 2018 13:42:29 +0200 Subject: [PATCH] iwlwifi: mvm: implement CSA abort In case we receive abort operation for CSA, clean up our state. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 24 +++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 1bdc27d..b5a9e83 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -4631,6 +4631,29 @@ out_unlock: return ret; } +static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_chan_switch_te_cmd cmd = { + .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, + mvmvif->color)), + .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), + }; + + IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); + + mutex_lock(&mvm->mutex); + WARN_ON(iwl_mvm_send_cmd_pdu(mvm, + WIDE_ID(MAC_CONF_GROUP, + CHANNEL_SWITCH_TIME_EVENT_CMD), + 0, sizeof(cmd), &cmd)); + mutex_unlock(&mvm->mutex); + + WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); +} + static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) { int i; @@ -5087,6 +5110,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = { .channel_switch = iwl_mvm_channel_switch, .pre_channel_switch = iwl_mvm_pre_channel_switch, .post_channel_switch = iwl_mvm_post_channel_switch, + .abort_channel_switch = iwl_mvm_abort_channel_switch, .tdls_channel_switch = iwl_mvm_tdls_channel_switch, .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, -- 2.7.4