p7 function flow created

.vscode/launch.json

@@ -124,6 +124,30 @@
                         }
                     ]
             }
+            {
+                "name": "(rfsim) Launch GNB",
+                "type": "cppdbg",
+                "request": "launch",
+                "program": " /home/glab/NR_nfapi/openairinterface5g/cmake_targets/ran_build/build/nr-softmodem",
+                "args":["-O",
+                    "/home/glab/NR_nfapi/openairinterface5g/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpx300.conf",
+                "--rfsim",
+                "--rfsimulator.serveraddr",
+                    "server"],
+                    "stopAtEntry": false,
+                    "cwd": "${workspaceFolder}",
+                    "environment": [],
+                    "externalConsole": false,
+                    "MIMode": "gdb",
+                    "miDebuggerPath": "/usr/bin/gdb",
+                    "setupCommands": [
+                        {
+                            "description": "Enable pretty-printing for gdb",
+                            "text": "-enable-pretty-printing",
+                            "ignoreFailures": true
+                        }
+                    ]
+            }
         ]
     }
 

executables/nr-gnb.c

@@ -135,6 +135,7 @@ void wakeup_prach_gNB(PHY_VARS_gNB *gNB, RU_t *ru, int frame, int subframe);
 
 extern uint8_t nfapi_mode;
 extern void oai_subframe_ind(uint16_t sfn, uint16_t sf);
+extern void oai_slot_ind(uint16_t sfn, uint16_t slot);
 extern void add_subframe(uint16_t *frameP, uint16_t *subframeP, int offset);
 
 //#define TICK_TO_US(ts) (ts.diff)
@@ -156,7 +157,8 @@ static inline int rxtx(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int frame_t
     //oai_subframe_ind(proc->frame_tx, proc->subframe_tx);
     //LOG_D(PHY, "oai_subframe_ind(frame:%u, subframe:%d) - NOT CALLED ********\n", frame, subframe);
     start_meas(&nfapi_meas);
-    oai_subframe_ind(frame_rx, slot_rx);
+    // oai_subframe_ind(frame_rx, slot_rx);
+    oai_slot_ind(frame_rx, slot_rx);
     stop_meas(&nfapi_meas);
 
     /*if (gNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus||

nfapi/oai_integration/nfapi_pnf.c

@@ -1214,6 +1214,7 @@ int start_request(nfapi_pnf_config_t *config, nfapi_pnf_phy_config_t *phy,  nfap
   p7_config->phy_id = phy->phy_id;
   p7_config->remote_p7_port = phy_info->remote_port;
   p7_config->remote_p7_addr = phy_info->remote_addr;
+  // TODO: remove this hardcoded port
   p7_config->local_p7_port = 32123; // DJP - good grief cannot seem to get the right answer phy_info->local_port;
   //DJP p7_config->local_p7_addr = (char*)phy_info->local_addr.c_str();
   p7_config->local_p7_addr = phy_info->local_addr;
@@ -1319,10 +1320,17 @@ int start_request(nfapi_pnf_config_t *config, nfapi_pnf_phy_config_t *phy,  nfap
 
   printf("[PNF] Sending PNF_START_RESP\n");
   nfapi_send_pnf_start_resp(config, p7_config->phy_id);
-  printf("[PNF] Sending first P7 subframe ind\n");
-  nfapi_pnf_p7_subframe_ind(p7_config, p7_config->phy_id, 0); // DJP - SFN_SF set to zero - correct???
+  printf("[PNF] Sending first P7 slot indication\n");
+#if 1
   //TODO: Change to nfapi_pnf_p7_slot_ind
+  nfapi_pnf_p7_slot_ind(p7_config, p7_config->phy_id, 0, 0);
+  printf("[PNF] Sent first P7 slot ind\n");
+#else
+  nfapi_pnf_p7_subframe_ind(p7_config, p7_config->phy_id, 0); // DJP - SFN_SF set to zero - correct???
   printf("[PNF] Sent first P7 subframe ind\n");
+#endif
+  
+  
   return 0;
 }
 
@@ -1656,6 +1664,60 @@ void oai_subframe_ind(uint16_t sfn, uint16_t sf) {
   }
 }
 
+
+
+void oai_slot_ind(uint16_t sfn, uint16_t slot) {
+
+#if 1 // Put the NR code here
+  //LOG_D(PHY,"%s(sfn:%d, sf:%d)\n", __FUNCTION__, sfn, sf);
+
+  //TODO FIXME - HACK - DJP - using a global to bodge it in
+  if (p7_config_g != NULL && sync_var==0) {
+    // DONE: changed for NR  x x   x x x x   x x x x  x x x x  - - - - - - : x (Frame), - (Slot) (max_numer =2)
+    uint16_t sfn_slot_tx = sfn<<6 | slot; 
+    if ((sfn % 100 == 0) && slot==0) { // DOUBT: Why 100?
+      struct timespec ts;
+      clock_gettime(CLOCK_MONOTONIC, &ts);
+      NFAPI_TRACE(NFAPI_TRACE_INFO, "[PNF] %s %d.%d (sfn:%u slot:%u) SFN/SLOT(TX):%u\n", __FUNCTION__, ts.tv_sec, ts.tv_nsec, sfn, slot, NFAPI_SFNSLOT2DEC(sfn_slot_tx));
+    }
+
+    // int subframe_ret = nfapi_pnf_p7_slot_ind(p7_config_g, p7_config_g->phy_id, 0, 0);
+    int slot_ret = nfapi_pnf_p7_slot_ind(p7_config_g, p7_config_g->phy_id, sfn, slot);
+
+    // if (subframe_ret) {
+    if (slot_ret) { 
+      NFAPI_TRACE(NFAPI_TRACE_INFO, "[PNF] %s(frame:%u slot:%u) SFN/SLOT(TX):%u - PROBLEM with pnf_p7_slot_ind()\n", __FUNCTION__, sfn, slot, sfn_slot_tx, NFAPI_SFNSLOT2DEC(sfn_slot_tx));
+      // printing anything causes error: probably because there isn't enough time to accomodate a print statement
+    } else {
+      //NFAPI_TRACE(NFAPI_TRACE_INFO, "***NFAPI subframe handler finished *** \n");
+    }
+  } else {
+  }
+#else
+  //LOG_D(PHY,"%s(sfn:%d, sf:%d)\n", __FUNCTION__, sfn, sf);
+
+  //TODO FIXME - HACK - DJP - using a global to bodge it in
+  if (p7_config_g != NULL && sync_var==0) {
+    uint16_t sfn_sf_tx = sfn<<4 | sf;
+
+    if ((sfn % 100 == 0) && sf==0) {
+      struct timespec ts;
+      clock_gettime(CLOCK_MONOTONIC, &ts);
+      NFAPI_TRACE(NFAPI_TRACE_INFO, "[PNF] %s %d.%d (sfn:%u sf:%u) SFN/SF(TX):%u\n", __FUNCTION__, ts.tv_sec, ts.tv_nsec, sfn, sf, NFAPI_SFNSF2DEC(sfn_sf_tx));
+    }
+
+    int subframe_ret = nfapi_pnf_p7_subframe_ind(p7_config_g, p7_config_g->phy_id, sfn_sf_tx);
+
+    if (subframe_ret) {
+      NFAPI_TRACE(NFAPI_TRACE_INFO, "[PNF] %s(frame:%u subframe:%u) SFN/SF(TX):%u - PROBLEM with pnf_p7_subframe_ind()\n", __FUNCTION__, sfn, sf, sfn_sf_tx, NFAPI_SFNSF2DEC(sfn_sf_tx));
+    } else {
+      //NFAPI_TRACE(NFAPI_TRACE_INFO, "***NFAPI subframe handler finished *** \n");
+    }
+  } else {
+  }
+#endif
+}
+
 int oai_nfapi_rach_ind(nfapi_rach_indication_t *rach_ind) {
   rach_ind->header.phy_id = 1; // DJP HACK TODO FIXME - need to pass this around!!!!
   LOG_D(PHY, "%s() sfn_sf:%d preambles:%d\n", __FUNCTION__, NFAPI_SFNSF2DEC(rach_ind->sfn_sf), rach_ind->rach_indication_body.number_of_preambles);

nfapi/oai_integration/nfapi_pnf.h

@@ -24,4 +24,5 @@
 int oai_nfapi_rach_ind(nfapi_rach_indication_t *rach_ind);
 void configure_nfapi_pnf(char *vnf_ip_addr, int vnf_p5_port, char *pnf_ip_addr, int pnf_p7_port, int vnf_p7_port);
 void oai_subframe_ind(uint16_t sfn, uint16_t sf);
+void oai_slot_ind(uint16_t sfn, uint16_t slot);
 #endif

nfapi/oai_integration/nfapi_vnf.c

@@ -1091,7 +1091,10 @@ int start_resp_cb(nfapi_vnf_config_t *config, int p5_idx, nfapi_nr_start_respons
   pnf_info *pnf = vnf->pnfs;
   phy_info *phy = pnf->phys;
   vnf_p7_info *p7_vnf = vnf->p7_vnfs;
-  nfapi_vnf_p7_add_pnf((p7_vnf->config), phy->remote_addr, phy->remote_port, phy->id);
+
+  nfapi_vnf_p7_add_pnf((p7_vnf->config), phy->remote_addr, 32123, phy->id);
+ 
+  // nfapi_vnf_p7_add_pnf((p7_vnf->config), phy->remote_addr, phy->remote_port, phy->id);
   return 0;
 }
 

nfapi/open-nFAPI/nfapi/public_inc/nfapi_interface.h

@@ -120,6 +120,9 @@ typedef struct {
 } nfapi_tl_t;
 #define NFAPI_TAG_LENGTH_PACKED_LEN 4
 
+// Convenience methods to convert between SFN/SLOT formats
+#define NFAPI_SFNSLOT2DEC(_sfnslot) ((((_sfnslot) >> 6) * 10) + ((_sfnslot) & 0xF))
+
 // Convenience methods to convert between SFN/SFN formats
 #define NFAPI_SFNSF2DEC(_sfnsf) ((((_sfnsf) >> 4) * 10) + ((_sfnsf) & 0xF))
 #define NFAPI_SFNSFDEC2SFNSF(_sfnsf_dec) ((((_sfnsf_dec) / 10) << 4) | (((_sfnsf_dec) - (((_sfnsf_dec) / 10) * 10)) & 0xF))

nfapi/open-nFAPI/pnf/inc/pnf_p7.h

@@ -116,6 +116,7 @@ int pnf_p7_pack_and_send_p7_message(pnf_p7_t* pnf_p7, nfapi_p7_message_header_t*
 int pnf_p7_send_message(pnf_p7_t* pnf_p7, uint8_t* msg, uint32_t msg_len);
 
 
+int pnf_p7_slot_ind(pnf_p7_t* config, uint16_t phy_id, uint16_t sfn, uint16_t slot);
 int pnf_p7_subframe_ind(pnf_p7_t* config, uint16_t phy_id, uint16_t sfn_sf);
 
 pnf_p7_rx_message_t* pnf_p7_rx_reassembly_queue_add_segment(pnf_p7_t* pnf_p7, pnf_p7_rx_reassembly_queue_t* queue, uint32_t rx_hr_time, uint16_t sequence_number, uint16_t segment_number, uint8_t m, uint8_t* data, uint16_t data_len);

nfapi/open-nFAPI/pnf/public_inc/nfapi_pnf_interface.h

@@ -720,6 +720,21 @@ int nfapi_pnf_p7_start(nfapi_pnf_p7_config_t* config);
  */
 int nfapi_pnf_p7_stop(nfapi_pnf_p7_config_t* config);
 
+/*! NR Slot indication
+ * message copied from nfapi_pnf_p7_subframe_ind
+ * \param config A pointer to a PNF P7 config
+ * \param phy_id The phy_id for the phy instance
+ * \param sfn_sf The SFN and SF in the format of FAPI
+ * \return 0 means success, -1 means failure
+ * 
+ * The client should call the subframe indication every 1ms. The PNF will
+ * respond by invoking the pnf p7 subframe callbacks with the messages from the subframe buffer
+ *
+ * If messages are not in the subframe buffer, they dummy subframe messages will be sent
+ */
+int nfapi_pnf_p7_slot_ind(nfapi_pnf_p7_config_t* config, uint16_t phy_id, uint16_t sfn, uint16_t slot);
+
+
 /*! Subframe indication
  * \param config A pointer to a PNF P7 config
  * \param phy_id The phy_id for the phy instance

nfapi/open-nFAPI/pnf/src/pnf_p7_interface.c

@@ -88,6 +88,16 @@ int nfapi_pnf_p7_stop(nfapi_pnf_p7_config_t* config)
 	return 0;
 }
 
+int nfapi_pnf_p7_slot_ind(nfapi_pnf_p7_config_t* config, uint16_t phy_id, uint16_t sfn, uint16_t slot)
+{
+	// Verify that config is not null
+	if(config == 0)
+		return -1;
+	
+	pnf_p7_t* _this = (pnf_p7_t*)(config);
+
+	return pnf_p7_slot_ind(_this, phy_id, sfn, slot);
+}
 
 int nfapi_pnf_p7_subframe_ind(nfapi_pnf_p7_config_t* config, uint16_t phy_id, uint16_t sfn_sf)
 {

nfapi/open-nFAPI/pnf/tests/pnf_cunit_main.c

@@ -48,6 +48,9 @@ typedef struct phy_info
 	uint8_t enabled;
 	uint16_t phy_id;
 	uint16_t sfn_sf;
+	uint16_t sfn;
+	uint16_t slot;
+	
 
 	pthread_t thread;
 
@@ -1207,6 +1210,12 @@ void send_dl_subframe_msgs_interleaved(int p7Sock, int phy_id, struct sockaddr_i
 	//free(req.tx_request_body.tx_pdu_list);
 }
 
+void send_slot_indication(phy_info_t* phy_info)
+{
+	// DONE: add sfn and slot as members in the phy_info
+	nfapi_pnf_p7_slot_ind(phy_info->config, phy_info->phy_id, phy_info->sfn, phy_info->slot);
+}
+
 void send_subframe_indication(phy_info_t* phy_info)
 {
 	nfapi_pnf_p7_subframe_ind(phy_info->config, phy_info->phy_id, phy_info->sfn_sf);

nfapi/open-nFAPI/vnf/src/vnf_p7_interface.c

@@ -444,7 +444,7 @@ int nfapi_vnf_p7_add_pnf(nfapi_vnf_p7_config_t* config, const char* pnf_p7_addr,
 
 	// save the remote endpoint information
 	node->remote_addr.sin_family = AF_INET;
-	node->remote_addr.sin_port = htons(pnf_p7_port);
+	node->remote_addr.sin_port =  pnf_p7_port;//htons(pnf_p7_port);
 	node->remote_addr.sin_addr.s_addr = inet_addr(pnf_p7_addr);
 
 	vnf_p7_connection_info_list_add(vnf_p7, node);