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RicardoC's avatar
RicardoC
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

CXL Type 3 OOO IP AXI issue

Hi, After populating the AFU with custom logic, the AXI interface from the CXL IP seems to have incorrect behavior. Scenario: standard Avery base testbench attempts to write 1500 CLs to the device....
Cxl
JonWay_C_Intel's avatar
JonWay_C_Intel
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi @RicardoC This is a bug in 23.2 when OOO is enabled. You can work around this until 23.3 by de-asserting AWREADY and WREADY together if they need to backpressure either the Address or Write data channel.

RicardoC's avatar
RicardoC
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Hi John,

Thank you for the confirmation. We had already worked around the issue in the same manner as you suggested.

Thanks again,

Ricardo.