split nr_ue_dl_indication in two different functions, that have little...

split nr_ue_dl_indication in two different functions, that have little interaction: nr_ue_dl_processing and nr_ue_dl_scheduler. the call remain nr_ue_dl_indication

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

@@ -1157,19 +1157,15 @@ int nr_ue_ul_indication(nr_uplink_indication_t *ul_info)
   return 0;
 }
 
-int nr_ue_dl_indication(nr_downlink_indication_t *dl_info)
+static uint32_t nr_ue_dl_processing(nr_downlink_indication_t *dl_info)
 {
-  pthread_mutex_lock(&mac_IF_mutex);
   uint32_t ret_mask = 0x0;
   module_id_t module_id = dl_info->module_id;
   NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
-  if ((!dl_info->dci_ind && !dl_info->rx_ind)) {
-    // UL indication to schedule DCI reception
-    nr_ue_dl_scheduler(dl_info);
-  } else {
-    // UL indication after reception of DCI or DL PDU
+
+  // DL indication after reception of DCI or DL PDU
   if (dl_info && dl_info->dci_ind && dl_info->dci_ind->number_of_dcis) {
-      LOG_T(MAC,"[L2][IF MODULE][DL INDICATION][DCI_IND]\n");
+    LOG_T(MAC, "[L2][IF MODULE][DL INDICATION][DCI_IND]\n");
     for (int i = 0; i < dl_info->dci_ind->number_of_dcis; i++) {
       LOG_T(MAC, ">>>NR_IF_Module i=%d, dl_info->dci_ind->number_of_dcis=%d\n", i, dl_info->dci_ind->number_of_dcis);
       int8_t ret = handle_dci(dl_info->module_id,
@@ -1177,10 +1173,10 @@ int nr_ue_dl_indication(nr_downlink_indication_t *dl_info)
                               dl_info->gNB_index,
                               dl_info->frame,
                               dl_info->slot,
-                                dl_info->dci_ind->dci_list+i);
+                              dl_info->dci_ind->dci_list + i);
       if (ret < 0)
         continue;
-        fapi_nr_dci_indication_pdu_t *dci_index = dl_info->dci_ind->dci_list+i;
+      fapi_nr_dci_indication_pdu_t *dci_index = dl_info->dci_ind->dci_list + i;
 
       /* The check below filters out UL_DCIs which are being processed as DL_DCIs. */
       if (dci_index->dci_format != NR_DL_DCI_FORMAT_1_0 && dci_index->dci_format != NR_DL_DCI_FORMAT_1_1) {
@@ -1263,11 +1259,24 @@ int nr_ue_dl_indication(nr_downlink_indication_t *dl_info)
       }
       dl_info->rx_ind = NULL;
     }
-  }
-  pthread_mutex_unlock(&mac_IF_mutex);
     return ret_mask;
 }
 
+int nr_ue_dl_indication(nr_downlink_indication_t *dl_info)
+{
+  int ret = pthread_mutex_lock(&mac_IF_mutex);
+  AssertFatal(!ret, "mutex failed %d\n", ret);
+  uint32_t ret2 = 0;
+  if (!dl_info->dci_ind && !dl_info->rx_ind)
+    // DL indication to process DCI reception
+    nr_ue_dl_scheduler(dl_info);
+  else
+    // DL indication to process data channels
+    ret2 = nr_ue_dl_processing(dl_info);
+  pthread_mutex_unlock(&mac_IF_mutex);
+  return ret2;
+}
+
 nr_ue_if_module_t *nr_ue_if_module_init(uint32_t module_id)
 {
   if (nr_ue_if_module_inst[module_id] == NULL) {