Merge remote-tracking branch 'origin/fapi-stop-exchange' into integration_2025_w48 (!3561)

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/oai_integration/socket/include/socket_pnf.h

@@ -36,4 +36,5 @@ bool pnf_nr_send_p5_message(pnf_t *pnf, nfapi_nr_p4_p5_message_header_t *msg, ui
 bool pnf_nr_send_p7_message(pnf_p7_t* pnf_p7, nfapi_nr_p7_message_header_t* header, uint32_t msg_len);
 void *pnf_start_p5_thread(void *ptr);
 void *pnf_nr_p7_thread_start(void *ptr);
+void socket_nfapi_nr_pnf_stop();
 #endif // SOCKET_PNF_H

nfapi/oai_integration/socket/include/socket_vnf.h

@@ -31,4 +31,5 @@ bool vnf_nr_send_p5_msg(vnf_t *vnf, uint16_t p5_idx, nfapi_nr_p4_p5_message_head
 bool vnf_nr_send_p7_msg(vnf_p7_t *vnf_p7, nfapi_nr_p7_message_header_t* header);
 void vnf_start_p5_thread(void* ptr);
 void* vnf_nr_start_p7_thread(void* ptr);
+void socket_nfapi_send_stop_request(vnf_t *vnf);
 #endif // SOCKET_VNF_H

nfapi/oai_integration/socket/socket_pnf.c

@@ -20,6 +20,15 @@
  */
 #include "socket_pnf.h"
 #include "nfapi.h"
+static nfapi_pnf_config_t *config;
+void socket_nfapi_nr_pnf_stop()
+{
+  AssertFatal(config->nr_stop_req, "STOP.request Handler should be set!");
+  nfapi_nr_stop_request_scf_t req = {0};
+  req.header.phy_id = 0;
+  req.header.message_id = NFAPI_NR_PHY_MSG_TYPE_PNF_STOP_REQUEST;
+  config->nr_stop_req(config, 0, &req);
+}
 
 bool pnf_nr_send_p5_message(pnf_t *pnf, nfapi_nr_p4_p5_message_header_t *msg, uint32_t msg_len)
 {
@@ -148,7 +157,7 @@ bool pnf_nr_send_p7_message(pnf_p7_t *pnf_p7, nfapi_nr_p7_message_header_t *head
 void *pnf_start_p5_thread(void *ptr)
 {
   NFAPI_TRACE(NFAPI_TRACE_INFO, "[PNF] IN PNF NFAPI start thread %s\n", __FUNCTION__);
-  nfapi_pnf_config_t *config = (nfapi_pnf_config_t *)ptr;
+  config = (nfapi_pnf_config_t *)ptr;
   struct sched_param sp;
   sp.sched_priority = 20;
   pthread_setschedparam(pthread_self(), SCHED_FIFO, &sp);

nfapi/oai_integration/socket/socket_vnf.c

@@ -20,9 +20,26 @@
  */
 #include "socket_vnf.h"
 
+#include "common/utils/LOG/log.h"
 #include "nfapi.h"
+#include "nfapi_vnf.h"
+#include <common/platform_constants.h>
 #include "nfapi/oai_integration/vendor_ext.h" //TODO: Remove this include when removing the Aerial transport stuff
 
+
+void socket_stop_nfapi_p5_p7()
+{
+  get_p7_vnf()->terminate = 1;
+  get_config()->pnf_disconnect_indication = NULL;
+}
+
+void socket_nfapi_send_stop_request(vnf_t *vnf)
+{
+  nfapi_nr_stop_request_scf_t req = {.header.message_id = NFAPI_NR_PHY_MSG_TYPE_STOP_REQUEST, .header.phy_id = 0};
+  nfapi_nr_vnf_stop_req(&vnf->_public, 0, &req);
+  NFAPI_TRACE(NFAPI_TRACE_INFO, "Sent NFAPI STOP.request\n");
+}
+
 static bool send_p5_msg(vnf_t *vnf, nfapi_vnf_pnf_info_t *pnf, const void *msg, int len, uint8_t stream)
 {
   int result = socket_send_p5_msg(vnf->sctp, pnf->p5_sock, &pnf->p5_pnf_sockaddr, msg, len, stream);
@@ -279,7 +296,6 @@ static int nfapi_nr_vnf_p5_start(nfapi_vnf_config_t *config)
   // Verify that config is not null
   if (config == 0)
     return -1;
-
   NFAPI_TRACE(NFAPI_TRACE_INFO, "%s()\n", __FUNCTION__);
 
   int p5ListenSock, p5Sock;
@@ -293,7 +309,7 @@ static int nfapi_nr_vnf_p5_start(nfapi_vnf_config_t *config)
   struct sctp_initmsg initMsg = {0};
   int noDelay;
 
-  vnf_t *vnf = (vnf_t *)(config);
+  vnf_t *vnf = (vnf_t *)(get_config());
 
   NFAPI_TRACE(NFAPI_TRACE_INFO, "Starting P5 VNF connection on port %u\n", config->vnf_p5_port);
 
@@ -747,8 +763,8 @@ static int nfapi_nr_vnf_p7_start(nfapi_vnf_p7_config_t *config)
     return -1;
 
   NFAPI_TRACE(NFAPI_TRACE_INFO, "%s()\n", __FUNCTION__);
-
-  vnf_p7_t *vnf_p7 = (vnf_p7_t *)config;
+  vnf_p7_t *vnf_p7 = get_p7_vnf();
+  vnf_p7 = (vnf_p7_t *)config;
 
   // Create p7 receive udp port
   // todo : this needs updating for Ipv6