Synchronizing reconfiguration of coherent functions on disaggregated FPGA resources

With the evolution of cloud computing, FPGAs are involved in the data centers thanks to their high performance and logic reconfigurable features. To efficiently make use of data center resources, recent rack scale architecture tends to disaggregate data center resources. This paper proposes the Synchronizing Network wide Function Reconfiguration (SNFR) protocol that aims to synchronize the reconfiguration of coherent functions on disaggregated FPGA resources deployed across the network. The associated protocol processor is implemented. The synchronized reconfiguration is captured by the Xilinx debug core and network traffic analyzer. The experimental section shows that the protocol processor can support maximum 9 Gbps traffic and introduces additional latency ranged from from 0.1 μs to 0.21μs.