NVIDIA Aerial Integration

- Aerial config file
- Changes for ARC1.1. Change config file to max MCS 25. Fixed pdu size errors.
- Remove taskset from Dockerfile.gNB.aerial.ubuntu20 after changing isolated CPUs
- removed the USRP from Docker file

Co-authored-by: Florian Kaltenberger <florian.kaltenberger@eurecom.fr>
Co-authored-by: Fredrik Molander <fmolander@nvidia.com>
Co-authored-by: Reem Bahsoun <reem.bahsoun@openairinterface.org>

executables/nr-softmodem.c

@@ -80,7 +80,9 @@ unsigned short config_frames[4] = {2,9,11,13};
 #include "nfapi/oai_integration/vendor_ext.h"
 #include "gnb_config.h"
 #include "openair2/E1AP/e1ap_common.h"
-
+#ifdef ENABLE_AERIAL
+#include "nfapi/oai_integration/aerial/fapi_nvIPC.h"
+#endif
 #ifdef E2_AGENT
 #include "openair2/E2AP/flexric/src/agent/e2_agent_api.h"
 #include "openair2/E2AP/RAN_FUNCTION/init_ran_func.h"
@@ -286,9 +288,15 @@ static int create_gNB_tasks(ngran_node_t node_type, configmodule_interface_t *cf
   itti_wait_ready(1);
   LOG_I(PHY, "%s() Task ready initialize structures\n", __FUNCTION__);
 
+#ifdef ENABLE_AERIAL
+  AssertFatal(NFAPI_MODE == NFAPI_MODE_AERIAL,"Can only be run with '--nfapi AERIAL' when compiled with AERIAL support, if you want to run other (n)FAPI modes, please run ./build_oai without -w AERIAL");
+#endif
+
   RCconfig_verify(cfg, node_type);
 
-  RCconfig_nr_prs();
+  if(NFAPI_MODE != NFAPI_MODE_AERIAL){
+    RCconfig_nr_prs();
+  }
 
   if (RC.nb_nr_macrlc_inst > 0)
     RCconfig_nr_macrlc(cfg);
@@ -687,7 +695,7 @@ int main( int argc, char **argv ) {
   pthread_mutex_init(&sync_mutex, NULL);
   usleep(1000);
 
-  if (NFAPI_MODE) {
+  if (NFAPI_MODE && NFAPI_MODE != NFAPI_MODE_AERIAL) {
     printf("NFAPI*** - mutex and cond created - will block shortly for completion of PNF connection\n");
     pthread_cond_init(&sync_cond,NULL);
     pthread_mutex_init(&sync_mutex, NULL);
@@ -706,7 +714,7 @@ int main( int argc, char **argv ) {
   printf("wait_gNBs()\n");
   wait_gNBs();
   printf("About to Init RU threads RC.nb_RU:%d\n", RC.nb_RU);
-  int sl_ahead=6;
+  int sl_ahead = NFAPI_MODE == NFAPI_MODE_AERIAL ? 0 : 6;
   if (RC.nb_RU >0) {
     printf("Initializing RU threads\n");
     init_NR_RU(uniqCfg, get_softmodem_params()->rf_config_file);
@@ -749,7 +757,9 @@ int main( int argc, char **argv ) {
 
   if (RC.nb_RU > 0)
     start_NR_RU();
-
+#ifdef ENABLE_AERIAL
+  nvIPC_Init();
+#endif
   if (RC.nb_nr_L1_inst > 0) {
     printf("wait RUs\n");
     wait_RUs();
@@ -778,7 +788,7 @@ int main( int argc, char **argv ) {
       load_softscope("nrqt", &p);
     }
 
-    if (NFAPI_MODE != NFAPI_MODE_PNF && NFAPI_MODE != NFAPI_MODE_VNF) {
+    if (NFAPI_MODE != NFAPI_MODE_PNF && NFAPI_MODE != NFAPI_MODE_VNF && NFAPI_MODE != NFAPI_MODE_AERIAL) {
       printf("Not NFAPI mode - call init_eNB_afterRU()\n");
       init_eNB_afterRU();
     } else {