iwlwifi: mvm: set sta_id in SCD_QUEUE_CONFIG cmd

Set the correct sta_id in the SCD_QUEUE_CONFIG command sent
to the FW when enabling/disabling queues. This is needed in
DQA-mode to allow the FW to associate between queue and STA.

In case the queue isn't connected to a specific station but
rather is a static "generic" queue - the sta_id should be
set to 0x10 (max supported STA is 0x0f).
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/sta.c

@@ -635,9 +635,16 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm,
 			.scd_queue = queue,
 			.enable = 0,
 		};
+		u8 ac;
 
 		disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue);
 
+		spin_lock_bh(&mvm->queue_info_lock);
+		ac = mvm->queue_info[queue].mac80211_ac;
+		cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
+		cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[ac];
+		spin_unlock_bh(&mvm->queue_info_lock);
+
 		/* Disable the queue */
 		iwl_mvm_invalidate_sta_queue(mvm, queue, disable_agg_tids,
 					     true);

drivers/net/wireless/intel/iwlwifi/mvm/utils.c

@@ -691,6 +691,10 @@ void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
 			.tid = cfg->tid,
 		};
 
+		/* Set sta_id in the command, if it exists */
+		if (iwl_mvm_is_dqa_supported(mvm))
+			cmd.sta_id = cfg->sta_id;
+
 		iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL,
 					 wdg_timeout);
 		WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd),