Arria 10 Gen3 x8 Hard IP for PCI Express using the Avalon-MM Interface with DMA Might Drop a Completion TLP

Description

The Gen3 x8 Arria 10 Hard IP for PCI Express using the Avalon-MM interface with DMA and 256-tags might overflow the RX Completion buffer. If the Completion buffer overflows, the IP core drops a Completion TLP.

Resolution

The workaround is to edit the generated file, <working_dir>/<design_name>/altera_pcie_a10_hip_<ver>/synth/altpcie_a10_hip_hwtcl_<random_number>.v . Search for the instance, altpcieav_256_app. Add the following connections:

.ko_cpl_spc_header(ko_cpl_spc_header) and .ko_cpl_spc_data(ko_cpl_spc_data).

This issue will be fixed in a future version of the Arria 10 Gen3 x8 Hard IP for PCI Express using the Avalon-MM with DMA interface.