Why does the the Avalon®-MM Intel® Stratix® 10 Hard IP for PCI* Express IP’s dynamically generated example design with Avalon®-MM does not provide int_req_i as input pin?

Due to a problem with the Intel®Quartus® Prime Pro version 18.0 and 18.1, the Intel® Stratix® 10 Avalon®-MM PCI Express* Hard IP Example Design generates RTL with int_req_i set
to 0 instead of set as an input pin in the top level file, pcie_example_design_DUT.v

int_req_i is a legacy interrupt input pin that is available when “Enable MSI/MSI-X conduit interfaces” is selected.

This issue only exist when Avalon®-MM address width is set to 64bit.

To workaround this problem in the Quartus® Prime Pro version 18.0 and 18.1 follow the steps below:

Make the following changes to the top level file, pcie_example_design_DUT.v

input 
wire        intx_req_i,                      //specify as input port

dut (

.intx_req_i        (intx_req_i),       //replace 1’b0 with the intx_req_i

);

This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro version 19.1