From e0ffba49ae4593ea959b993c7949b6683f7d3b44 Mon Sep 17 00:00:00 2001
From: Teodora <teodora.vladic@openairinterface.org>
Date: Mon, 3 Feb 2025 15:51:52 +0100
Subject: [PATCH] Store U-plane related info from xml

  - interface name,
  - TX/RX carrier names, and
  - TX/RX endpoint names
---
 radio/fhi_72/mplane/init-mplane.c   |  4 ++++
 radio/fhi_72/mplane/ru-mplane-api.c | 30 +++++++++++++++++++++++++++++
 radio/fhi_72/mplane/ru-mplane-api.h |  2 ++
 3 files changed, 36 insertions(+)

diff --git a/radio/fhi_72/mplane/init-mplane.c b/radio/fhi_72/mplane/init-mplane.c
index 34d68a30d0..add3916f4d 100644
--- a/radio/fhi_72/mplane/init-mplane.c
+++ b/radio/fhi_72/mplane/init-mplane.c
@@ -170,6 +170,10 @@ bool manage_ru(ru_session_t *ru_session, const openair0_config_t *oai, const siz
   success = get_config_for_xran(operational_ds, max_num_ant, &ru_session->xran_mplane);
   AssertError(success, return false, "[MPLANE] Unable to retrieve required info for xran from RU \"%s\".\n", ru_session->ru_ip_add);
 
+  // save the U-plane info
+  success = get_uplane_info(operational_ds, &ru_session->ru_mplane_config);
+  AssertError(success, return false, "[MPLANE] Unable to get U-plane info from RU operational datastore.\n");
+
   free(operational_ds);
   free(watchdog_answer);
 
diff --git a/radio/fhi_72/mplane/ru-mplane-api.c b/radio/fhi_72/mplane/ru-mplane-api.c
index ada42fd841..d387a40864 100644
--- a/radio/fhi_72/mplane/ru-mplane-api.c
+++ b/radio/fhi_72/mplane/ru-mplane-api.c
@@ -125,3 +125,33 @@ bool get_config_for_xran(const char *buffer, const int max_num_ant, xran_mplane_
 
   return true;
 }
+
+bool get_uplane_info(const char *buffer, ru_mplane_config_t *ru_mplane_config)
+{
+  // Interface name
+  ru_mplane_config->interface_name = get_ru_xml_node(buffer, "interface");
+
+  // PDSCH
+  uplane_info_t *tx_end = &ru_mplane_config->tx_endpoints;
+  get_ru_xml_list(buffer, "static-low-level-tx-endpoints", &tx_end->name, &tx_end->num);
+  AssertError(tx_end->name != NULL, return false, "[MPLANE] Cannot get TX endpoint names.\n");
+
+  // TX carriers
+  uplane_info_t *tx_carriers = &ru_mplane_config->tx_carriers;
+  get_ru_xml_list(buffer, "tx-arrays", &tx_carriers->name, &tx_carriers->num);
+  AssertError(tx_carriers->name != NULL, return false, "[MPLANE] Cannot get TX carrier names.\n");
+
+  // PUSCH and PRACH
+  uplane_info_t *rx_end = &ru_mplane_config->rx_endpoints;
+  get_ru_xml_list(buffer, "static-low-level-rx-endpoints", &rx_end->name, &rx_end->num);
+  AssertError(rx_end->name != NULL, return false, "[MPLANE] Cannot get RX endpoint names.\n");
+
+  // RX carriers
+  uplane_info_t *rx_carriers = &ru_mplane_config->rx_carriers;
+  get_ru_xml_list(buffer, "rx-arrays", &rx_carriers->name, &rx_carriers->num);
+  AssertError(rx_carriers->name != NULL, return false, "[MPLANE] Cannot get RX carrier names.\n");
+
+  MP_LOG_I("Successfully retrieved all the U-plane info - interface name, TX/RX carrier names, and TX/RX endpoint names.\n");
+
+  return true;
+}
diff --git a/radio/fhi_72/mplane/ru-mplane-api.h b/radio/fhi_72/mplane/ru-mplane-api.h
index 5b49814efa..1afabd4d23 100644
--- a/radio/fhi_72/mplane/ru-mplane-api.h
+++ b/radio/fhi_72/mplane/ru-mplane-api.h
@@ -94,4 +94,6 @@ typedef struct {
 
 bool get_config_for_xran(const char *buffer, const int max_num_ant, xran_mplane_t *xran_mplane);
 
+bool get_uplane_info(const char *buffer, ru_mplane_config_t *ru_mplane_config);
+
 #endif /* RU_MPLANE_API_H */