基于龙芯3A平台PMON中的网卡驱动设计与实现  

Design and Realization of NIC Driver of PMON Based on Patform of Godson 3A

作　　者：李庆[1] 宋汉广[1] 

机构地区：[1]江苏自动化研究所,江苏连云港222006

出　　处：《计算机测量与控制》2012年第6期1593-1595,共3页Computer Measurement &Control

摘　　要：龙芯3A平台采用PMON作为其基本输入输出系统(BIOS),为了在PMON中实现通过网络加载操作系统镜像的功能,设计实现了PMON下的W82574网卡驱动;由于PMON采用查询代替中断,没有所谓中断处理程序;在网卡驱动设计时,对初始化、数据发送和接收两部分作出相应处理,并介绍了PMON下网卡驱动的配置编译过程;通过测试,该PMON的网络性能具有丢包率低、响应速度快的特点,并且能够支持网络加载VxWorks和Linux操作系统,最终实现了网络性能稳定、功能完善、可靠性高的基于龙芯3A平台的BIOS。The platform of Godson--3A uses PMON as its basic input output system （BIOS）, in order to achieve the function of loading the image of the operating system over the network function designed and implemented the NIC driver of W82574 in PMON. Since PMON uses query instead of interrupts, the handler of interrupt is not called. The initialization data to send and receive appropriate treatment in two parts, and describes the configuration of network card drivers under PMON compilation processs, through a series of strict tests, the network performance of PMON is with the characteristics of low loss and fast response. And can support the network load VxWorks and Linux operating systems, the stability performance of network, high reliability BIOS which is based on Godson 3A platform.

关 键 词：龙芯3A PMON 中断 网卡驱动 配置编译 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]