UL_TTI [DONE]

nfapi/README.md

@@ -26,37 +26,42 @@ sudo <oai_codebase>/cmake_targets/ran_build/build/nr-softmodem -O <oai_codebase>
 ### Task-A [packing]
 * Modify `nfapi_p7_message_pack()` in `nfapi_p7.c`
 * In the switch case, change the labels as well as the pack functions:
-    * `pack_dl_config_request` becomes `pack_dl_tti_request` [x]
-    * `pack_ul_config_request` becomes `pack_ul_tti_request`
+    * `pack_dl_config_request` becomes `pack_dl_tti_request`    [x]
+    * `pack_ul_config_request` becomes `pack_ul_tti_request`    [x]
     * `pack_hi_dci0_request` becomes `pack_ul_dci_request`
     * `pack_tx_request` becomes `pack_tx_data_request`
 
 ### Task-B [unpacking]
 * Modify `nfapi_p7_message_unpack()` in `nfapi_p7.c`
-    * `unpack_dl_tti_request` [x]
-    * `unpack_ul_tti_request`
+    * `unpack_dl_tti_request`   [x]
+    * `unpack_ul_tti_request`   [x]
     * `unpack_ul_dci_request`
     * `unpack_tx_data_request`
+
 * Similarly change all the `unpack` functions within the switch-case block.
+
 * Modify the behaviour of `check_unpack_length()` for the new `TAGS`
     * this is where the unpack functions are called
-        * `dl_tti_request` [x]
-        * `ul_tti_request`
+        * `dl_tti_request`  [x]
+        * `ul_tti_request`  [x]
         * `ul_dci_request`
         * `tx_data_request`
 
 ### Task-C
 * Write the `ul_tti` alternative for `nfapi_vnf_p7_ul_config_req()` in `vnf_p7_interface.c` and other such functions.
     * `dl_tti` is present as `nr_dl_config` [x]
-    * `ul_tti`
+    * `ul_tti` [x]
     * `ul_dci`
     * `tx_data`
+
 * Resolve the hard-coded areas in source code. [`HIGH-PRIORITY`] [x]
+
 * Write the `ul_tti` equivalent for `oai_nfapi_dl_config_req` in `nfapi_vnf.c` and other such functions.
     * `dl_tti` is present as `nr_dl_config` [x]
-    * `ul_tti`
+    * `ul_tti` is present as `oai_nfapi_ul_tti_req()` [x]
     * `ul_dci`
     * `tx_data`
+
 * Check if `nr_schedule_response()` needs to be upgraded [x]
     * only a couple of `NFAPI_MODE!=VNF_MODE` checks *can be added* before calling the functions to handle PDUs
     * we need to add `NFAPI_MODE!=MONOLITHIC` checks before `oai_nfapi_dl_config_req` and other such fns [x]

nfapi/oai_integration/nfapi_vnf.c

@@ -1354,6 +1354,26 @@ int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) {
   return retval;
 }
 
+int oai_nfapi_ul_tti_req(nfapi_nr_ul_tti_request_t *ul_tti_req) {
+  nfapi_vnf_p7_config_t *p7_config = vnf.p7_vnfs[0].config;
+
+  ul_tti_req->header.phy_id = 1; // DJP HACK TODO FIXME - need to pass this around!!!!
+  ul_tti_req->header.message_id = NFAPI_NR_PHY_MSG_TYPE_UL_TTI_REQUEST;
+  
+  int retval = nfapi_vnf_p7_ul_tti_req(p7_config, ul_tti_req);
+
+  if (retval!=0) {
+    LOG_E(PHY, "%s() Problem sending retval:%d\n", __FUNCTION__, retval);
+  } else {
+    // Reset number of PDUs so that it is not resent
+    ul_tti_req->n_pdus = 0;
+    ul_tti_req->n_group = 0;
+    ul_tti_req->n_ulcch = 0;
+    ul_tti_req->n_ulsch = 0;
+  }
+  return retval;
+}
+
 int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) {
   nfapi_vnf_p7_config_t *p7_config = vnf.p7_vnfs[0].config;
   ul_config_req->header.phy_id = 1; // DJP HACK TODO FIXME - need to pass this around!!!!

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

@@ -1322,6 +1322,7 @@ typedef struct
 } nfapi_nr_ul_tti_request_number_of_groups_t;
 
 typedef struct {
+  nfapi_p7_message_header_t header;
   uint16_t SFN; //0->1023   
   uint16_t Slot;//0->319
   uint8_t n_pdus;//Number of PDUs that are included in this message. All PDUs in the message are numbered in order. Value 0 -> 255

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

@@ -493,6 +493,15 @@ int nfapi_vnf_p7_nr_dl_config_req(nfapi_vnf_p7_config_t* config, nfapi_nr_dl_tti
 	return vnf_p7_pack_and_send_p7_msg(vnf_p7, &req->header);
 }
 
+int nfapi_vnf_p7_ul_tti_req(nfapi_vnf_p7_config_t* config, nfapi_nr_ul_tti_request_t* req)
+{
+	if(config == 0 || req == 0)
+		return -1;
+
+	vnf_p7_t* vnf_p7 = (vnf_p7_t*)config;
+	return vnf_p7_pack_and_send_p7_msg(vnf_p7, &req->header);
+}
+
 int nfapi_vnf_p7_ul_config_req(nfapi_vnf_p7_config_t* config, nfapi_ul_config_request_t* req)
 {
 	if(config == 0 || req == 0)