using mask for ru_thread_tx

openair1/PHY/defs_eNB.h

@@ -809,12 +809,16 @@ typedef struct eNB_proc_t_s {
   pthread_mutex_t mutex_asynch_rxtx;
   /// mutex for RU access to eNB processing (PDSCH/PUSCH)
   pthread_mutex_t mutex_RU;
+  /// mutex for eNB processing to access RU TX (PDSCH/PUSCH)
+  pthread_mutex_t mutex_RU_tx;
   /// mutex for RU access to eNB processing (PRACH)
   pthread_mutex_t mutex_RU_PRACH;
   /// mutex for RU access to eNB processing (PRACH BR)
   pthread_mutex_t mutex_RU_PRACH_br;
   /// mask for RUs serving eNB (PDSCH/PUSCH)
   int RU_mask;
+  /// mask for RUs serving eNB (PDSCH/PUSCH)
+  int RU_mask_tx;
   /// mask for RUs serving eNB (PRACH)
   int RU_mask_prach;
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
@@ -829,8 +833,6 @@ typedef struct eNB_proc_t_s {
   eNB_rxtx_proc_t L1_proc,L1_proc_tx;
   /// stats thread pthread descriptor
   pthread_t process_stats_thread;
-  /// for waking up tx procedure
-  RU_proc_t *ru_proc;
 } eNB_proc_t;
 
 

targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.100PRB.usrpx310.conf

@@ -15,7 +15,7 @@ eNBs =
     // Tracking area code, 0x0000 and 0xfffe are reserved values
     tracking_area_code = 1;
 
-    plmn_list = ( { mcc = 208; mnc = 93; mnc_length = 2; } );
+    plmn_list = ( { mcc = 208; mnc = 92; mnc_length = 2; } );
 
     tr_s_preference     = "local_mac"
 
@@ -138,7 +138,7 @@ eNBs =
 
 
     ////////// MME parameters:
-    mme_ip_address      = ( { ipv4       = "192.168.12.26";
+    mme_ip_address      = ( { ipv4       = "192.168.12.148";
                               ipv6       = "192:168:30::17";
                               active     = "yes";
                               preference = "ipv4";
@@ -187,7 +187,7 @@ RUs = (
          max_pdschReferenceSignalPower = -27;
          max_rxgain                    = 116;
          eNB_instances  = [0];
-
+       sdr_addrs      = "type=x300";
     }
 );  
 

targets/RT/USER/lte-enb.c

@@ -143,8 +143,8 @@ extern double cpuf;
 void init_eNB(int,int);
 void stop_eNB(int nb_inst);
 
-int wakeup_tx(PHY_VARS_eNB *eNB,RU_proc_t *ru_proc);
-int wakeup_txfh(eNB_rxtx_proc_t *proc,RU_proc_t *ru_proc);
+int wakeup_tx(PHY_VARS_eNB *eNB);
+int wakeup_txfh(eNB_rxtx_proc_t *proc,PHY_VARS_eNB *eNB);
 void wakeup_prach_eNB(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe);
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
 void wakeup_prach_eNB_br(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe);
@@ -356,7 +356,7 @@ static void* L1_thread_tx(void* param) {
       exit_fun( "ERROR pthread_cond_signal" );
     }
     pthread_mutex_unlock( &proc->mutex );
-    wakeup_txfh(proc,eNB->proc.ru_proc);
+    wakeup_txfh(proc,eNB);
   }
 
   return 0;
@@ -429,11 +429,11 @@ static void* L1_thread( void* param ) {
 
     if (release_thread(&proc->mutex,&proc->instance_cnt,thread_name)<0) break;
     if (nfapi_mode!=2){
-    	if(get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)      wakeup_tx(eNB,eNB->proc.ru_proc);
+    	if(get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)      wakeup_tx(eNB);
     	else if(get_thread_parallel_conf() == PARALLEL_RU_L1_SPLIT)
     	{
     		phy_procedures_eNB_TX(eNB, proc, 1);
-    		wakeup_txfh(proc,eNB->proc.ru_proc);
+    		wakeup_txfh(proc,eNB);
     	}
     }
 
@@ -473,21 +473,31 @@ void eNB_top(PHY_VARS_eNB *eNB, int frame_rx, int subframe_rx, char *string,RU_t
   }
 }
 
-int wakeup_txfh(eNB_rxtx_proc_t *proc,RU_proc_t *ru_proc) {
+int wakeup_txfh(eNB_rxtx_proc_t *proc,PHY_VARS_eNB *eNB) {
+
+  RU_t *ru;
+  RU_proc_t *ru_proc;
+  int i;
+
 
-	if(ru_proc == NULL)
-		return(0);
   struct timespec wait;
   wait.tv_sec=0;
   wait.tv_nsec=5000000L;
-printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~inside wakeup_txfh %d.%d IC_RU = %d\n", proc->frame_tx, proc->subframe_tx, proc->instance_cnt_RUs);
+//printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~inside wakeup_txfh %d.%d IC_RU = %d\n", proc->frame_tx, proc->subframe_tx, proc->instance_cnt_RUs);
 
   if(wait_on_condition(&proc->mutex_RUs,&proc->cond_RUs,&proc->instance_cnt_RUs,"wakeup_txfh")<0) {
     LOG_E(PHY,"Frame %d, subframe %d: TX FH not ready\n", ru_proc->frame_tx, ru_proc->subframe_tx);
     return(-1);
   }
+  pthread_mutex_lock(&eNB->proc.mutex_RU_tx);
+  eNB->proc.RU_mask_tx = 0;
+  pthread_mutex_unlock(&eNB->proc.mutex_RU_tx);
   if (release_thread(&proc->mutex_RUs,&proc->instance_cnt_RUs,"wakeup_txfh")<0) return(-1);
 
+  for(int i=0; i<eNB->num_RU; i++)
+  {
+    ru      = eNB->RU_list[i];
+    ru_proc = &ru->proc;
     if (ru_proc->instance_cnt_eNBs == 0) {
       LOG_E(PHY,"Frame %d, subframe %d: TX FH thread busy, dropping Frame %d, subframe %d\n", ru_proc->frame_tx, ru_proc->subframe_tx, proc->frame_rx, proc->subframe_rx);
       return(-1);
@@ -498,7 +508,6 @@ printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~inside wakeup_txfh %d.%d IC_RU = %d\n", pr
       return(-1);
     }
 
-  //for(num_RUs)
     ru_proc->instance_cnt_eNBs = 0;
     ru_proc->timestamp_tx = proc->timestamp_tx;
     ru_proc->subframe_tx  = proc->subframe_tx;
@@ -513,11 +522,12 @@ printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~inside wakeup_txfh %d.%d IC_RU = %d\n", pr
     }
   
     pthread_mutex_unlock( &ru_proc->mutex_eNBs );
+  }
 
   return(0);
 }
 
-int wakeup_tx(PHY_VARS_eNB *eNB,RU_proc_t *ru_proc) {
+int wakeup_tx(PHY_VARS_eNB *eNB) {
 
   eNB_proc_t *proc=&eNB->proc;
 
@@ -913,6 +923,7 @@ void init_eNB_proc(int inst) {
 
     proc->first_rx                 =1;
     proc->first_tx                 =1;
+    proc->RU_mask_tx               = (1<<eNB->num_RU)-1;
     proc->RU_mask                  =0;
     proc->RU_mask_prach            =0;
 
@@ -929,6 +940,7 @@ void init_eNB_proc(int inst) {
     pthread_mutex_init( &proc->mutex_prach, NULL);
     pthread_mutex_init( &proc->mutex_asynch_rxtx, NULL);
     pthread_mutex_init( &proc->mutex_RU,NULL);
+    pthread_mutex_init( &proc->mutex_RU_tx,NULL);
     pthread_mutex_init( &proc->mutex_RU_PRACH,NULL);
 
     pthread_cond_init( &proc->cond_prach, NULL);

targets/RT/USER/lte-ru.c

@@ -1273,7 +1273,6 @@ void wakeup_L1s(RU_t *ru) {
     for (i=0;i<ru->num_eNB;i++)
     {
       LOG_D(PHY,"ru->wakeup_rxtx:%p\n", ru->wakeup_rxtx);
-      eNB_list[i]->proc.ru_proc = &ru->proc;
       if (ru->wakeup_rxtx!=0 && ru->wakeup_rxtx(eNB_list[i],ru) < 0)
       {
         LOG_E(PHY,"could not wakeup eNB rxtx process for subframe %d\n", ru->proc.subframe_rx);
@@ -1559,7 +1558,7 @@ static void* ru_thread_tx( void* param ) {
 	// wait until eNBs are finished subframe RX n and TX n+4
     wait_on_condition(&proc->mutex_eNBs,&proc->cond_eNBs,&proc->instance_cnt_eNBs,"ru_thread_tx");
     if (oai_exit) break;
-printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx is waken up %d.%d having L1 %d\n", proc->frame_tx, proc->subframe_tx, ru->num_eNB);
+//printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx is waken up %d.%d having L1 %d\n", proc->frame_tx, proc->subframe_tx, ru->num_eNB);
   	       
     // do TX front-end processing if needed (precoding and/or IDFTs)
     if (ru->feptx_prec) ru->feptx_prec(ru);
@@ -1578,9 +1577,25 @@ printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx is waken up %d.%d having L1 %d\
       eNB       = ru->eNB_list[i];
       eNB_proc  = &eNB->proc;
       L1_proc   = (get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)? &eNB_proc->L1_proc_tx : &eNB_proc->L1_proc;
-char *L1_proc_name = (get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)? "L1_proc_tx" : "L1_proc";
-printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx signaling to eNB_list[%d] with %s IC_RU %d\n", i, L1_proc_name, L1_proc->instance_cnt_RUs);
-      pthread_mutex_lock( &L1_proc->mutex_RUs );
+      pthread_mutex_lock(&eNB_proc->mutex_RU_tx);
+      for (int j=0;j<eNB->num_RU;j++) {
+        if (ru == eNB->RU_list[j]) {
+          if ((eNB_proc->RU_mask_tx&(1<<i)) > 0)
+            LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information from RU tx %d (num_RU %d,mask %x) has not been served yet!\n",
+	      eNB->Mod_id,eNB_proc->frame_rx,eNB_proc->subframe_rx,ru->idx,eNB->num_RU,eNB_proc->RU_mask_tx);
+          eNB_proc->RU_mask_tx |= (1<<i);
+        }
+      }
+      if (eNB_proc->RU_mask_tx != (1<<eNB->num_RU)-1) {  // not all RUs have provided their information so return
+        LOG_E(PHY,"Not all RUs TX are finished\n");
+        pthread_mutex_unlock(&eNB_proc->mutex_RU_tx);
+        continue;
+      }
+      else { // all RUs TX are finished so send the ready signal to eNB processing
+        eNB_proc->RU_mask_tx = 0;
+        pthread_mutex_unlock(&eNB_proc->mutex_RU_tx);
+
+        pthread_mutex_lock( &L1_proc->mutex_RUs);
         L1_proc->instance_cnt_RUs = 0;
         // the thread can now be woken up
         if (pthread_cond_signal(&L1_proc->cond_RUs) != 0) {
@@ -1590,6 +1605,7 @@ printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx signaling to eNB_list[%d] with
         pthread_mutex_unlock( &L1_proc->mutex_RUs );
       }
     }
+  }
   release_thread(&proc->mutex_FH1,&proc->instance_cnt_FH1,"ru_thread_tx");
   return 0;
 }