app_units: added the fapi_level property to the split 6 O-DU low app unit

Author: AlaiaL

apps/units/flexible_o_du/split_6/o_du_low/split6_o_du_low_unit_cli11_schema.cpp

@@ -9,6 +9,7 @@
  */
 
 #include "split6_o_du_low_unit_cli11_schema.h"
+#include "apps/helpers/logger/logger_appconfig_cli11_utils.h"
 #include "apps/units/flexible_o_du/o_du_low/du_low_config_cli11_schema.h"
 #include "apps/units/flexible_o_du/split_7_2/helpers/ru_ofh_config_cli11_schema.h"
 #include "apps/units/flexible_o_du/split_8/helpers/ru_sdr_config_cli11_schema.h"
@@ -28,6 +29,9 @@ void srsran::configure_cli11_with_split6_o_du_low_unit_config_schema(CLI::App& a
   configure_cli11_with_ru_ofh_config_schema(app, ofh_cfg);
   configure_cli11_with_ru_sdr_config_schema(app, sdr_cfg);
 
+  CLI::App* logger_subcmd = add_subcommand(app, "log", "Logger configuration")->configurable();
+  app_helpers::add_log_option(*logger_subcmd, config.fapi_level, "--fapi_level", "FAPI log level");
+
   CLI::App* metrics_subcmd = add_subcommand(app, "metrics", "Metrics configuration")->configurable();
   auto*     periodicity_subcmd =
       add_subcommand(*metrics_subcmd, "periodicity", "Metrics periodicity configuration")->configurable();

apps/units/flexible_o_du/split_6/o_du_low/split6_o_du_low_unit_config.h

@@ -20,6 +20,8 @@ namespace srsran {
 /// O-RAN DU low Split 6 unit configuration.
 struct split6_o_du_low_unit_config {
   unsigned du_report_period = 1000;
+  /// FAPI log level.
+  srslog::basic_levels fapi_level = srslog::basic_levels::warning;
   /// DU low configuration.
   du_low_unit_config du_low_cfg;
   /// Radio Unit configuration.

apps/units/flexible_o_du/split_6/o_du_low/split6_o_du_low_unit_logger_registrator.h

@@ -21,6 +21,9 @@ namespace srsran {
 /// Registers all the loggers for the O-RAN DU low split 6.
 inline void register_split6_o_du_low_loggers(const split6_o_du_low_unit_config& config)
 {
+  auto& fapi = srslog::fetch_basic_logger("FAPI", true);
+  fapi.set_level(config.fapi_level);
+
   register_du_low_loggers(config.du_low_cfg.loggers);
 
   if (const auto* ru_sdr = std::get_if<ru_sdr_unit_config>(&config.ru_cfg)) {