CSL_IntcContext             intcContext;
CSL_IntcEventHandlerRecord  EventHandler[30];
CSL_IntcGlobalEnableState   state;
CSL_IntcParam               vectIdMsi;
CSL_IntcObj                 intcObjMsi;
CSL_IntcHandle              hTestMsi;
CSL_IntcEventHandlerRecord  EventRecord;

//MSI Interrupt Handler
static void msi_irq_handler (void* Handle)
{
	.....
}

//MSI interrupt routing
{
   	/* INTC module initialization */
   	intcContext.eventhandlerRecord = EventHandler;
   	intcContext.numEvtEntries      = 10;
   	
   	/* Open the INTC Module for Vector ID: 4 and Event ID: 17 (C6678 DSP)
   	 * 	Refer to the interrupt architecture and mapping document for the Event ID
   	 * 	PCIEXpress_MSI_INTn (Message Signaled Interrupt Mode) */
   	vectIdMsi = CSL_INTC_VECTID_4;
   	hTestMsi = CSL_intcOpen (&intcObjMsi, 17, &vectIdMsi, NULL);
   	if (hTestMsi == NULL)
   	{
   		printf("Error: GEM-INTC Open failed for MSI event\n");
   		return;
   	}

   	/* Register an call-back handler which is invoked when the event occurs. */
   	EventRecord.handler = &msi_irq_handler;
   	//EventRecord.arg = (void *)hTestMsi;
   	EventRecord.arg = 0;

   	if (CSL_intcPlugEventHandler(hTestMsi, &EventRecord) != CSL_SOK)
   	{
   		printf("Error: GEM-INTC Plug  MSI event handler failed\n");
   		return;
   	}

   	/* Enabling the events. */
   	if (CSL_intcHwControl(hTestMsi, CSL_INTC_CMD_EVTENABLE, NULL) != CSL_SOK)
   	{
   		printf("Error: GEM-INTC CSL_INTC_CMD_EVTENABLE command failed for MSI event\n");
   		return;
   	}

   	printf("Debug: GEM-INTC Configuration Completed \n");
}