When I add cores to my design using the ChipScope Inserter, the following warning occurs:
"WARNING:sim:356 - The parameter "Exclude_From_Data_Storage_"' is disabled, its value will default from false to true."
If you enable the data port, then you cannot have the trigger ports also connected to the data storage buffer (AKA trace buffer). When "Data Same As Trigger" is unchecked, the state of the "Include Trig0 Port" is grayed out. If "Include Trig0 Port" is checked, it remains checked even though "Data same as Trigger" is unchecked. This can cause the specified warning, which can be safely ignored.
This issue will be resolved in ChipScope Pro 11.2.