Why is data corrupted when performing loopback using the Arria 10 Hard IP for PCI Express in Gen1 and Gen2 modes?

Description

The Arria® 10 Hard IP for PCI Express® performing loopback in Gen1 and Gen2 modes transmits corrupted data because of an incorrect Quartus® Prime bit setting.

Resolution

For Quartus Prime 15.1.2, install the appropriate patch.  Regenerate your PCIe® Hard IP core and recompile the design.

For Arria 10 GX/GT/SX 1150ES3 or production silicon use patch 2.01.
For Arria 10 GX/GT/SX 660ES2 or production silicon use patch 2.05.
For Arria 10 GX/GT/SX 1150ES, 1150ES2, 660ES silicon use patch 2.14.

This issue is fixed in Quartus Prime software 16.0 and later.