NVMe SSD storage method and system based on programmable fusion chip

Abstract

The invention discloses an NVMe SSD storage method and system based on a programmable fusion chip, the storage system comprises a plurality of data source modules and an upper computer running on a PC, the storage system is characterized by further comprising the programmable fusion chip and an NVMe SSD, the programmable fusion chip adopts an FMQL45T900 chip, the programmable fusion chip is integrated with a PS of a four-core processor and a PL of a programmable logic array, and the NVMe SSD is connected with the upper computer. DDR (Double Data Rate) memories are respectively hung outside the PL and the PS; the NVMe SSD is connected with the PL through a PCIe bus; and one end of the PS is internally interconnected with the PL through an AXI bus, and the other end of the PS is in communication connection with the upper computer through a standard Ethernet interface. According to the invention, an FMQL45T900 type programmable fusion chip of a Fudan microelectronic is adopted, the chip is integrated with a PL (programmable logic array FPGA) and a PS (four-core cortex-a7ARM) at the same time, and file system management of the NVMe SSD is realized in a manner that the PL end simulates a PCIe core as an RC end and the PS end controls the PCIe core; the PL end can simultaneously expand various high-speed interfaces such as a PCIe interface and an SRIO to serve as interfaces of a data source, and the interfaces of the data source are greatly enriched.

Description

technical field [0001] The invention belongs to the technical field of SSD storage, in particular to an NVMe SSD storage method and system based on a programmable fusion chip. Background technique [0002] SSD devices have been widely used in many fields such as home computers, cloud storage, and big data storage due to their large capacity, fast storage speed, and low power consumption. [0003] At present, there are two main storage methods for SSDs: 1) Simulate the PCIe core through FPGA as the RC terminal, and connect to NVMeSSD for storage. This storage method mostly realizes high-speed data storage in data flow mode, but it is difficult for FPGA to implement file system for SSD. manage. For SSDs with file system management, users do not need to pay attention to the specific physical location of data storage, and can access SSDs only in the form of operating files to read and write; 2) Use the PCIe controller of the CPU as the RC terminal to connect to NVMeSSD, The CP...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main storage methods for SSDs: 1) Simulate the PCIe core through FPGA as the RC terminal, and connect to NVMeSSD for storage. This storage method mostly realizes high-speed data storage in data flow mode, but it is difficult for FPGA to implement file system for SSD. manage

For SSDs with file system management, users do not need to pay attention to the specific physical location of data storage, and can access SSDs only in the form of operating files to read and write; 2) Use the PCIe controller of the CPU as the RC terminal to connect to NVMeSSD, Use the CPU to manage the file system of NVMe SSD, but the CPU peripheral interface resources are limited. When the data source interface is replaced, it is often necessary to replace the new CPU for interface adaptation, which lacks flexibility.

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