Add IBUC network adaptor support

Makefile

@@ -16,6 +16,7 @@ USE_AMD ?= 0
 USE_DU ?= 0
 USE_MPI ?= 0
 USE_UCX ?= 0
+USE_IBUC ?= 0
 
 # set to empty if not provided
 DEVICE_HOME ?=
@@ -224,6 +225,11 @@ else
 	NET_ADAPTOR_FLAG = 
 endif
 
+# IBUC network adaptor configuration
+ifeq ($(USE_IBUC), 1)
+	NET_ADAPTOR_FLAG += -DUSE_IBUC
+endif
+
 LIBDIR := $(BUILDDIR)/lib
 OBJDIR := $(BUILDDIR)/obj
 
@@ -276,6 +282,7 @@ print_var:
 	@echo "UCX_HOME: $(UCX_HOME)"
 	@echo "UCX_LIB: $(UCX_LIB)"
 	@echo "UCX_INCLUDE: $(UCX_INCLUDE)"
+	@echo "USE_IBUC: $(USE_IBUC)"
 	@echo "NET_ADAPTOR_FLAG: $(NET_ADAPTOR_FLAG)"
 
 $(LIBDIR)/$(TARGET): $(LIBOBJ)

flagcx/adaptor/adaptor.cc

@@ -124,6 +124,10 @@ struct flagcxDeviceAdaptor *deviceAdaptor = &hipAdaptor;
 extern struct flagcxNetAdaptor flagcxNetSocket;
 extern struct flagcxNetAdaptor flagcxNetIb;
 
+#ifdef USE_IBUC
+extern struct flagcxNetAdaptor flagcxNetIbuc;
+#endif
+
 #ifdef USE_UCX
 extern struct flagcxNetAdaptor flagcxNetUcx;
 #endif
@@ -135,6 +139,9 @@ struct flagcxNetAdaptor *getUnifiedNetAdaptor(int netType) {
 #ifdef USE_UCX
       // When UCX is enabled, use UCX instead of IBRC
       return &flagcxNetUcx;
+#elif USE_IBUC
+      // When IBUC is enabled, use IBUC instead of IBRC
+      return &flagcxNetIbuc;
 #else
       return &flagcxNetIb;
 #endif

flagcx/adaptor/include/adaptor.h

@@ -50,8 +50,11 @@ extern struct flagcxNetAdaptor *netAdaptor;
 
 // Network type enumeration
 enum NetType {
-  IBRC = 1,  // InfiniBand RC (or UCX when USE_UCX=1)
-  SOCKET = 2 // Socket
+  IBRC = 1,   // InfiniBand RC (or UCX when USE_UCX=1)
+  SOCKET = 2, // Socket
+#ifdef USE_IBUC
+  IBUC = 3 // InfiniBand UC
+#endif
 };
 
 // Unified network adaptor function declarations