As an example of the IBIS/S Param models needing some additional documentation:
There are multiple model files in the UPHY folder – it looks like one is the package model maybe? Not sure if the other is S params of the driver model?
How are those intended to be used in a simulation setup?
The IBIS to use for PCIe is I assume, pcie_ibis_3b5db.ibs? Or is it t194_uphy_ibis_ami_rev1p00?
Can you provide some guidance as to what each model represents/how it is intended to be used in SI simulations?