Implementation of STOP exchange

This implements the STOP.request/indication for all 3 transport mechanisms, the VNF will send the STOP.request to the PNF, indicating it will disconnect, and await a STOP.indication from the PNF

The WLS VNF is reworked to be able to start before the PNF, by calling call rte_eal_init and rte_dev_probe to determine if dpdk has been initialized properly, before calling rte_eal_init in the intended process when it is appropriate to do so

nfapi/open-nFAPI/vnf/src/vnf.c

@@ -665,6 +665,30 @@ void vnf_nr_handle_error_indication(void *pRecvMsg, int recvMsgLen, nfapi_vnf_co
   }
 }
 
+void vnf_nr_handle_stop_indication(void* pRecvMsg, int recvMsgLen, nfapi_vnf_config_t* config, int p5_idx)
+{
+  // ensure it's valid
+  if (pRecvMsg == NULL || config == NULL) {
+    NFAPI_TRACE(NFAPI_TRACE_ERROR, "%s: NULL parameters\n", __FUNCTION__);
+  } else {
+    NFAPI_TRACE(NFAPI_TRACE_INFO, "Received STOP.indication\n");
+
+    nfapi_nr_stop_indication_scf_t msg;
+
+    // unpack the message
+    if (config->unpack_func(pRecvMsg, recvMsgLen, &msg, sizeof(msg), &config->codec_config)) {
+      if (config->nr_stop_ind) {
+        (config->nr_stop_ind)(config, p5_idx, &msg);
+      }
+    } else {
+      NFAPI_TRACE(NFAPI_TRACE_ERROR, "%s: Unpack message failed, ignoring\n", __FUNCTION__);
+    }
+
+    // make sure to release any dynamic part of the message
+    if (msg.vendor_extension)
+      config->codec_config.deallocate(msg.vendor_extension);
+  }
+}
 
 void vnf_handle_stop_response(void *pRecvMsg, int recvMsgLen, nfapi_vnf_config_t* config, int p5_idx)
 {
@@ -1172,6 +1196,10 @@ void vnf_nr_handle_p4_p5_message(void *pRecvMsg, int recvMsgLen, int p5_idx, nfa
 			vnf_handle_stop_response(pRecvMsg, recvMsgLen, config, p5_idx);
 			break;
 
+    case NFAPI_NR_PHY_MSG_TYPE_STOP_INDICATION:
+      vnf_nr_handle_stop_indication(pRecvMsg, recvMsgLen, config, p5_idx);
+      break;
+
 		default:
 			{
 				if(messageHeader.message_id >= NFAPI_VENDOR_EXT_MSG_MIN &&

nfapi/open-nFAPI/vnf/src/vnf_interface.c

@@ -665,6 +665,18 @@ int nfapi_vnf_stop_req(nfapi_vnf_config_t* config, int p5_idx, nfapi_stop_reques
 
 	return vnf_pack_and_send_p5_message(_this, p5_idx, &req->header, sizeof(nfapi_stop_request_t));
 }
+
+int nfapi_nr_vnf_stop_req(nfapi_vnf_config_t* config, int p5_idx, nfapi_nr_stop_request_scf_t* req)
+{
+  if (config == 0 || req == 0)
+    return -1;
+
+  vnf_t* _this = (vnf_t*)(config);
+  AssertFatal(config->send_p5_msg, "Function pointer must be configured\n");
+  NFAPI_TRACE(NFAPI_TRACE_INFO, "[VNF] Sending NFAPI STOP.request\n");
+  return config->send_p5_msg(_this, p5_idx, &req->header, sizeof(nfapi_nr_stop_request_scf_t));
+}
+
 int nfapi_vnf_measurement_req(nfapi_vnf_config_t* config, int p5_idx, nfapi_measurement_request_t* req)
 {
 	if(config == 0 || req == 0)