Remove DEADLINE_SCHEDULER and CPU_AFFINITY defines

CMakeLists.txt

@@ -877,8 +877,6 @@ include_directories ("${OPENAIR_DIR}/sdr/COMMON")
 ##############################################################
 
 add_boolean_option(OAI_NW_DRIVER_TYPE_ETHERNET False "????")
-add_boolean_option(DEADLINE_SCHEDULER False "Use the Linux scheduler SCHED_DEADLINE: kernel >= 3.14")
-add_boolean_option(CPU_AFFINITY False "Enable CPU Affinity of threads (only valid without deadline scheduler). It is enabled only with >2 CPUs")
 add_boolean_option(NAS_NETLINK False "useless ??? Must be True to compile nasmesh driver without rtai ????")
 add_boolean_option(OAI_NW_DRIVER_USE_NETLINK True "????")
 

cmake_targets/build_oai

@@ -40,7 +40,6 @@ conf_nvram_path=$OPENAIR_DIR/openair3/NAS/TOOLS/ue_eurecom_test_sfr.conf
 XFORMS="True"
 SKIP_SHARED_LIB_FLAG="False"
 PRINT_STATS="False"
-DEADLINE_SCHEDULER_FLAG_USER=""
 HW="None"
 TP="Ethernet"
 EPC=0
@@ -346,26 +345,6 @@ function main() {
             BUILD_COVERITY_SCAN=1
             echo_info "Will build Coverity-Scan objects for upload"
             shift;;
-       --disable-deadline)
-            DEADLINE_SCHEDULER_FLAG_USER="False"
-            CMAKE_CMD="$CMAKE_CMD -DDEADLINE_SCHEDULER=False"
-            echo_info "Disabling the usage of deadline scheduler"
-            shift 1;;
-       --enable-deadline)
-            DEADLINE_SCHEDULER_FLAG_USER="True"
-            CMAKE_CMD="$CMAKE_CMD -DDEADLINE_SCHEDULER=True"
-            echo_info "Enabling the usage of deadline scheduler"
-            shift 1;;
-       --enable-cpu-affinity)
-            CPU_AFFINITY_FLAG_USER="True"
-            CMAKE_CMD="$CMAKE_CMD -DCPU_AFFINITY=True"
-            echo_info "Enabling CPU Affinity (only valid when not using deadline scheduler)"
-            shift 1;;
-       --disable-cpu-affinity)
-            CPU_AFFINITY_FLAG_USER="False"
-            CMAKE_CMD="$CMAKE_CMD -DCPU_AFFINITY=False"
-            echo_info "Disabling CPU Affinity (only valid when not using deadline scheduler)"
-            shift 1;;
        --disable-T-Tracer)
             CMAKE_CMD="$CMAKE_CMD -DT_TRACER=False"
             echo_info "Disabling the T tracer"
@@ -483,15 +462,6 @@ function main() {
   echo_info "RF HW set to $HW" 
   # If the user doesn't specify the Linux scheduler to use, we set a value
 
-  #Disable CPU Affinity for deadline scheduler
-  if [ "$DEADLINE_SCHEDULER_FLAG_USER" = "True" ] ; then 
-     CPU_AFFINITY_FLAG_USER="False"
-     CMAKE_CMD="$CMAKE_CMD -DCPU_AFFINITY=False"
-  fi
-
-  echo_info "Flags for Deadline scheduler: $DEADLINE_SCHEDULER_FLAG_USER"
-  echo_info "Flags for CPU Affinity: $CPU_AFFINITY_FLAG_USER"
-
   #######################################################
   # Setting and printing OAI envs, we should check here #
   #######################################################

common/utils/system.c

@@ -280,28 +280,6 @@ void thread_top_init(char *thread_name,
 		     uint64_t deadline,
 		     uint64_t period) {
   
-#ifdef DEADLINE_SCHEDULER
-  struct sched_attr attr;
-
-  unsigned int flags = 0;
-
-  attr.size = sizeof(attr);
-  attr.sched_flags = 0;
-  attr.sched_nice = 0;
-  attr.sched_priority = 0;
-
-  attr.sched_policy   = SCHED_DEADLINE;
-  attr.sched_runtime  = runtime;
-  attr.sched_deadline = deadline;
-  attr.sched_period   = period; 
-
-  if (sched_setattr(0, &attr, flags) < 0 ) {
-    perror("[SCHED] eNB tx thread: sched_setattr failed\n");
-    fprintf(stderr,"sched_setattr Error = %s",strerror(errno));
-    exit(1);
-  }
-
-#else //LOW_LATENCY
   int policy, s, j;
   struct sched_param sparam;
   char cpu_affinity[1024];
@@ -314,27 +292,6 @@ void thread_top_init(char *thread_name,
   /* Enable CPU Affinity only if number of CPUs > 2 */
   CPU_ZERO(&cpuset);
 
-#ifdef CPU_AFFINITY
-  if (affinity == 0) {
-    LOG_W(HW,"thread_top_init() called with affinity==0, but overruled by #ifdef CPU_AFFINITY\n");
-  }
-  else if (get_nprocs() > 2)
-  {
-    for (j = 2; j < get_nprocs(); j++)
-      CPU_SET(j, &cpuset);
-    s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
-    if (s != 0)
-    {
-      perror( "pthread_setaffinity_np");
-      exit_fun("Error setting processor affinity");
-    }
-  }
-#else //CPU_AFFINITY
-  if (affinity) {
-    LOG_W(HW,"thread_top_init() called with affinity>0, but overruled by #ifndef CPU_AFFINITY.\n");
-  }
-#endif //CPU_AFFINITY
-
   /* Check the actual affinity mask assigned to the thread */
   s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
   if (s != 0)
@@ -384,8 +341,6 @@ void thread_top_init(char *thread_name,
                      "???",
                      sparam.sched_priority, cpu_affinity );
   }
-
-#endif //LOW_LATENCY
 }
 
 

common/utils/telnetsrv/telnetsrv_proccmd.c

@@ -121,11 +121,6 @@ char toksep[2];
               case SCHED_RR:
                    lptr+=sprintf(lptr,"%s ","rt: rr");
               break;
-#ifdef SCHED_DEADLINE
-              case SCHED_DEADLINE:
-                   lptr+=sprintf(lptr,"%s ","rt: deadline");
-              break;
-#endif
               default:
                    lptr+=sprintf(lptr,"%s ","????");
               break;

doc/testing_gnb_w_cots_ue_resources/oai_enb.log

@@ -343,7 +343,6 @@ Initializing RU threads
 [PHY]   Starting RU 0 (eNodeB_3GPP,synch_to_ext_device),
 waiting for sync (ru_thread,-1/0xff4968,0x17af520,0x16952a0)
 channel 0, Setting tx_gain offset 0.000000, rx_gain offset 118.000000, tx_freq 2680000000.000000, rx_freq 2560000000.000000
-[HW]   thread_top_init() called with affinity>0, but overruled by #ifndef CPU_AFFINITY.
 [PHY]   Initializing frame parms for N_RB_DL 25, Ncp 0, osf 1
 [PHY]   lte_parms.c: Setting N_RB_DL to 25, ofdm_symbol_size 512
 [PHY]   Initializing RU signal buffers (if_south local RF) nb_tx 1
@@ -624,10 +623,8 @@ cnx_id 1 assoc_id 904
 [PHY]   init_eNB_proc(inst:0) RC.nb_CC[inst]:1 
 [PHY]   Initializing eNB processes instance:0 CC_id 0 
 [PHY]   eNB->single_thread_flag:0
-[HW]   thread_top_init() called with affinity>0, but overruled by #ifndef CPU_AFFINITY.
 [HW]   [SCHED][eNB] eNB_thread_prach started on CPU 0, sched_policy = SCHED_FIFO , priority = 99, CPU Affinity= CPU_0 CPU_1 CPU_2 CPU_3 
 [ENB_APP]   ALL RUs ready - ALL eNBs ready
-[HW]   thread_top_init() called with affinity>0, but overruled by #ifndef CPU_AFFINITY.
 [HW]   [SCHED][eNB] eNB_thread_prach_br started on CPU 0, sched_policy = SCHED_FIFO , priority = 99, CPU Affinity= CPU_0 CPU_1 CPU_2 CPU_3 
 [ENB_APP]   Sending sync to all threads
 [MME_APP]   Creating MME_APP eNB Task

targets/RT/USER/lte-enb.c

@@ -917,14 +917,6 @@ void init_eNB_proc(int inst) {
     pthread_mutex_init( &proc->mutex_RU_PRACH_br,NULL);
     pthread_cond_init( &proc->cond_prach_br, NULL);
     pthread_attr_init( &proc->attr_prach_br);
-#ifndef DEADLINE_SCHEDULER
-    attr0       = &L1_proc->attr;
-    attr1       = &L1_proc_tx->attr;
-    attr_prach  = &proc->attr_prach;
-    attr_prach_br  = &proc->attr_prach_br;
-    //    attr_td     = &proc->attr_td;
-    //    attr_te     = &proc->attr_te;
-#endif
 
     if(get_thread_worker_conf() == WORKER_ENABLE) {
       init_te_thread(eNB);

targets/RT/USER/lte-ru.c

@@ -2277,15 +2277,6 @@ void init_RU_proc(RU_t *ru) {
   pthread_mutex_init( &proc->mutex_rf_tx, NULL);
   pthread_cond_init( &proc->cond_rf_tx, NULL);
 #endif
-#ifndef DEADLINE_SCHEDULER
-  attr_FH        = &proc->attr_FH;
-  attr_FH1       = &proc->attr_FH1;
-  attr_prach     = &proc->attr_prach;
-  attr_synch     = &proc->attr_synch;
-  attr_asynch    = &proc->attr_asynch_rxtx;
-  attr_emulateRF = &proc->attr_emulateRF;
-  attr_prach_br  = &proc->attr_prach_br;
-#endif
 
   if (ru->has_ctrl_prt == 1) pthread_create( &proc->pthread_ctrl, attr_ctrl, ru_thread_control, (void*)ru );
   else {

targets/RT/USER/lte-ue.c

@@ -203,22 +203,6 @@ void init_thread(int sched_runtime,
                  int sched_fifo,
                  cpu_set_t *cpuset,
                  char *name) {
-#ifdef DEADLINE_SCHEDULER
-
-  if (sched_runtime!=0) {
-    struct sched_attr attr= {0};
-    attr.size = sizeof(attr);
-    attr.sched_policy = SCHED_DEADLINE;
-    attr.sched_runtime  = sched_runtime;
-    attr.sched_deadline = sched_deadline;
-    attr.sched_period   = 0;
-    AssertFatal(sched_setattr(0, &attr, 0) == 0,
-                "[SCHED] %s thread: sched_setattr failed %s \n", name, strerror(errno));
-    LOG_I(HW,"[SCHED][eNB] %s deadline thread %lu started on CPU %d\n",
-          name, (unsigned long)gettid(), sched_getcpu());
-  }
-
-#else
   int settingPriority = 1;
 
   if (checkIfFedoraDistribution())
@@ -250,7 +234,6 @@ void init_thread(int sched_runtime,
   }
 
   CPU_FREE(cset);
-#endif
 }
 
 void init_UE(int nb_inst,