关键词: 非易失性存储器快速通道, 高速存储, FPGA, 虚拟文件系统, 块地址

Abstract: To address the issue where proprietary NVMe high-speed storage systems cannot adapt to standard file systems in embedded scenarios, this paper designs and implements a lightweight file system (LWFS) based on an FPGA storage system. Developed upon the Linux kernel's Virtual File System (VFS) framework, this file system achieves precise mapping between logical addresses and physical blocks. Through custom metadata management structures and block address mapping strategies, it implements fundamental VFS-level functions including file system initialization, file queries, and file reads. Experimental validation confirms LWFS's feasibility and efficiency in interacting with upper-layer communication protocols such as SFTP and Samba.

Key words:

non-volatile memory express, high-speed storage, FPGA, virtual file system, block address