AWS EC2 F2 Shell Errata

Implementation Restrictions

PCIE AXI4 interfaces between Custom Logic(CL) and Shell(SH) have following restrictions:
- All PCIe transactions must adhere to the PCIe base spec
- 4-KByte address boundary for all transactions (PCIe restriction)
- Multiple outstanding outbound PCIe read transactions with same ID is not supported
- PCIe extended tag not supported. Read-request is limited to 32 outstanding
- Address must match DoubleWord(DW) address of the transaction
- WSTRB (write strobe) must reflect appropriate valid bytes for AXI write beats
- Only increment burst type is supported
- AXI lock, memory type, protection type, quality of service (QoS) and region identifier are not supported
- Transactions from the Shell to CL must complete within the timeout period to avoid transaction termination by the Shell
- DMA transactions from the Shell to CL must complete within the timeout period to avoid transaction termination and invalid data returned for the DMA transaction
- PCIM and DMA-PCIS AXI4 interfaces do not support AxSIZE other than 3'b110 (64B)

Unsupported Features

HBM metrics not yet supported

Known Bugs/Issues