A method, host server, and system for supporting cloud-based FPGA deployment

Abstract

The invention discloses a method, a host server and a system for supporting cloud FPGA deployment, including: dividing the FPGA into a dynamic area for processing business and a static area for establishing a data transmission channel and storing FPGA state information in advance, data The transmission channel includes the PCIe channel; when the project configured by the FPGA changes, extract the static area file and the dynamic area file from the current project file respectively, and judge whether the static area file is consistent with the previous one; if so, control the dynamic area to stop working, and pass After the PCIe channel loads the content of the dynamic area file into the dynamic area, the work of the dynamic area is started to reconfigure the dynamic area; if not, the entire FPGA is reconfigured through the PCIe channel. Among them, due to the high bandwidth of the PCIe channel, the reconfiguration time is relatively short; since the FPGA's own PCIe channel is used, there is no need to configure additional JTAG external devices, thereby simplifying the reconfiguration process.

Description

technical field [0001] The present invention relates to the technical field of cloud integration, in particular to a method for supporting cloud FPGA deployment, a host server and a system. Background technique [0002] At present, with the rapid development of cloud computing, more and more businesses rely on cloud processing, but the computing capacity of the cloud is limited. In the prior art, in order to improve the computing power of the cloud, an additional coprocessor is usually configured on the original host server of the cloud data center, and part of the business is handed over to the coprocessor to reduce the workload of the CPU side of the host server. Improve the overall computing power of the cloud. Since FPGA (Field Programmable Gate Array, Field Programmable Logic Gate Array) has the advantages of low energy consumption, programmable, high throughput, etc., it is usually used as a coprocessor. [0003] However, once the FPGA is configured, it can only hand...

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Problems solved by technology

[0003] However, once the FPGA is configured, it can only handle specific services. To enable the FPGA to handle other services, the entire FPGA needs to be reconfigured based on the JTAG (Joint Test Action Group) protocol, and the reconfiguration time is relatively short. Long, to some extent offset the effect of the FPGA used to accelerate business processing; moreover, reconfiguring the FPGA based on the JTAG protocol requires an additional JTAG cable (to establish a JTAG channel) and corresponding driver software, resulting in a cumbersome reconfiguration process

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