remove a unused global storage of slot number

This has no meaning at a global level, we run several slots: one tx,
several rx at same time. Some minor cleaning of C style

executables/nr-gnb.c

@@ -106,11 +106,10 @@ time_stats_t softmodem_stats_rx_sf; // total rx time
 //#define TICK_TO_US(ts) (ts.diff)
 #define TICK_TO_US(ts) (ts.trials==0?0:ts.diff/ts.trials)
 #define L1STATSSTRLEN 16384
+static void rx_func(processingData_L1_t *param);
 
-static void tx_func(void *param)
+static void tx_func(processingData_L1tx_t *info)
 {
-  processingData_L1tx_t *info = (processingData_L1tx_t *) param;
-
   int frame_tx = info->frame;
   int slot_tx = info->slot;
   int frame_rx = info->frame_rx;
@@ -176,7 +175,6 @@ static void tx_func(void *param)
   deref_sched_response(info->sched_response_id);
 }
 
-
 void *L1_rx_thread(void *arg) 
 {
   PHY_VARS_gNB *gNB = (PHY_VARS_gNB*)arg;
@@ -206,9 +204,8 @@ void *L1_tx_thread(void *arg) {
   return NULL;
 }
 
-void rx_func(void *param)
+static void rx_func(processingData_L1_t *info)
 {
-  processingData_L1_t *info = (processingData_L1_t *) param;
   PHY_VARS_gNB *gNB = info->gNB;
   int frame_rx = info->frame_rx;
   int slot_rx = info->slot_rx;
@@ -387,7 +384,7 @@ void init_gNB_Tpool(int inst) {
   // create the TX thread responsible for TX processing start event (L1_tx_out msg queue), then launch tx_func()
   threadCreate(&gNB->L1_tx_thread, L1_tx_thread, (void *)gNB, "L1_tx_thread", gNB->L1_tx_thread_core, OAI_PRIORITY_RT_MAX);
 
-  notifiedFIFO_elt_t *msgL1Tx = newNotifiedFIFO_elt(sizeof(processingData_L1tx_t), 0, &gNB->L1_tx_out, tx_func);
+  notifiedFIFO_elt_t *msgL1Tx = newNotifiedFIFO_elt(sizeof(processingData_L1tx_t), 0, &gNB->L1_tx_out, NULL);
   processingData_L1tx_t *msgDataTx = (processingData_L1tx_t *)NotifiedFifoData(msgL1Tx);
   memset(msgDataTx, 0, sizeof(processingData_L1tx_t));
   init_DLSCH_struct(gNB, msgDataTx);

executables/nr-ru.c

@@ -1089,9 +1089,11 @@ void ru_tx_func(void *param) {
 
   if(!emulate_rf) {
     // do outgoing fronthaul (south) if needed
-    if ((ru->fh_north_asynch_in == NULL) && (ru->fh_south_out)) ru->fh_south_out(ru,frame_tx,slot_tx,info->timestamp_tx);
+    if ((ru->fh_north_asynch_in == NULL) && (ru->fh_south_out))
+      ru->fh_south_out(ru, frame_tx, slot_tx, info->timestamp_tx);
 
-    if (ru->fh_north_out) ru->fh_north_out(ru);
+    if (ru->fh_north_out)
+      ru->fh_north_out(ru);
   } else {
     if(frame_tx == print_frame) {
       for (int i=0; i<ru->nb_tx; i++) {

executables/softmodem-common.h

@@ -372,7 +372,6 @@ extern uint16_t sl_ahead;
 extern uint16_t sf_ahead;
 extern int oai_exit;
 
-void rx_func(void *param);
 void ru_tx_func(void *param);
 void configure_ru(void *, void *arg);
 void configure_rru(void *, void *arg);

openair1/SCHED_NR/fapi_nr_l1.c

@@ -159,8 +159,7 @@ void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO)
 
   if (NFAPI_MODE == NFAPI_MONOLITHIC){
     if (slot_type == NR_DOWNLINK_SLOT || slot_type == NR_MIXED_SLOT) {
-      processingData_L1tx_t *msgTx=NULL;
+      processingData_L1tx_t *msgTx = gNB->msgDataTx;
-      msgTx = gNB->msgDataTx;
       msgTx->num_pdsch_slot = 0;
       msgTx->num_dl_pdcch = 0;
       msgTx->num_ul_pdcch = number_ul_dci_pdu;

openair2/E2AP/RAN_FUNCTION/CUSTOMIZED/ran_func_mac.c

@@ -54,7 +54,8 @@ bool read_mac_sm(void* data)
     mac_ue_stats_impl_t* rd = &mac->msg.ue_stats[i];
 
     rd->frame = RC.nrmac[mod_id]->frame;
-    rd->slot = RC.nrmac[mod_id]->slot;
+    rd->slot = 0; // previously had slot info, but the gNB runs multiple slots
+                  // in parallel, so this has no real meaning
 
     rd->dl_aggr_tbs = UE->mac_stats.dl.total_bytes;
     rd->ul_aggr_tbs = UE->mac_stats.ul.total_bytes;

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

@@ -210,8 +210,6 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP, frame_t frame, sub_frame_
   }
 
   gNB->frame = frame;
-  gNB->slot = slot;
-
   start_meas(&gNB->eNB_scheduler);
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_gNB_DLSCH_ULSCH_SCHEDULER,VCD_FUNCTION_IN);
 

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c

@@ -2997,7 +2997,7 @@ int nr_mac_enable_ue_rrc_processing_timer(gNB_MAC_INST *mac, NR_UE_info_t *UE, b
   // frames, after RRC processing timer.
   UE->UE_sched_ctrl.ta_frame = (mac->frame - 1 + 1024) % 1024;
 
-  LOG_D(NR_MAC, "%4d.%2d UE %04x: Activate RRC processing timer (%d ms)\n", mac->frame, mac->slot, UE->rnti, delay);
+  LOG_D(NR_MAC, "UE %04x: Activate RRC processing timer (%d ms)\n", UE->rnti, delay);
   return 0;
 }
 

openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h

@@ -836,9 +836,7 @@ typedef struct gNB_MAC_INST_s {
 
   nr_mac_rrc_ul_if_t mac_rrc;
   f1_config_t f1_config;
-
   int16_t frame;
-  int16_t slot;
 
   pthread_mutex_t sched_lock;
 

openair2/NR_PHY_INTERFACE/NR_IF_Module.c

@@ -388,11 +388,9 @@ static void match_crc_rx_pdu(nfapi_nr_rx_data_indication_t *rx_ind, nfapi_nr_crc
 static void run_scheduler(module_id_t module_id, int CC_id, int frame, int slot)
 {
   NR_IF_Module_t *ifi = nr_if_inst[module_id];
-  // gNB_MAC_INST     *mac        = RC.nrmac[module_id];
 
-  NR_Sched_Rsp_t *sched_info;
   LOG_D(NR_MAC, "Calling scheduler for %d.%d\n", frame, slot);
-  sched_info = allocate_sched_response();
+  NR_Sched_Rsp_t *sched_info = allocate_sched_response();
 
   // clear UL DCI prior to handling ULSCH
   sched_info->UL_dci_req.numPdus = 0;