SWDEV-209060 - Create the Skeleton RDC CLI and daemon

Create the skeleton implementation of rdc_client.so and rdci. Modify current rdcd to
integrate the RDC API service:

rdc.proto is changed to add a new RdcAPI service which defined the interfaces for the RDC API.

RdcStandaloneHandler.cpp is added to send the request using gRPC to the rdcd. It is built into
the rdc_client.so

rdci.cc, RdciDisCoverySubSystem.cc and RdciSubSystem.cc are added to implement skeleton rdci.
Currently, the discovery subsystem is supported.

rdc_api_service.cc is added to the server as a skeleton to implement the RdcAPI service. Currently,
only discovery API is implemented. Note: we disabled the rdc_rsmi_service, which will be removed
in the future. The original rdc_client.so is renamed to rdc_client_smi.so which should also be
removed in the future.

Add the instruction how to run the rdcd and rdci in the build folder in the README.md.

Change-Id: Id232f9f83787e5812d4a295dc8cf0daa7728b06c

server/src/rdc_server_main.cc

@@ -39,6 +39,7 @@ THE SOFTWARE.
 #include "rocm_smi/rocm_smi.h"
 #include "rdc/rdc_server_main.h"
 #include "rdc/rdc_rsmi_service.h"
+#include "rdc/rdc_api_service.h"
 #include "rdc/rdc_server_utils.h"
 
 static bool sShutDownServer = false;
@@ -86,6 +87,19 @@ RDCServer::Run() {
     }
   }
 
+  if (start_api_service()) {
+    api_service_ = new amd::rdc::RdcAPIServiceImpl();
+    builder.RegisterService(api_service_);
+
+    // TODO(bill_liu): pass flags from cnfg file
+    rdc_status_t ret = api_service_->Initialize(0);
+
+    if (ret != RDC_ST_OK) {
+      std::cerr << "Failed to start API service" << std::endl;
+      return;
+    }
+  }
+
   // Finally assemble the server.
   // std::unique_ptr<::grpc::Server> server(builder.BuildAndStart());
   server_ = builder.BuildAndStart();
@@ -316,8 +330,9 @@ int main(int argc, char** argv) {
   }
 
   // TODO(cfreehil): Eventually, set these by reading a config file
-  rdc_server.set_start_rsmi_service(true);
+  rdc_server.set_start_rsmi_service(false);
   rdc_server.set_start_rdc_admin_service(true);
+  rdc_server.set_start_api_service(true);
 
   rdc_server.Run();