龙芯3A平台MSI和MSI-X实现  

Implementation of MSI and MSI-X in Loongosn 3A Platform

作　　者：王亚栋 邓俊 WANG Yadong;DENG Jun(Westone Information security Platform Tech.Co.,Ltd.,Chengdu,610041,China)

机构地区：[1]卫士通信息安全平台技术有限公司,成都610041

出　　处：《网络新媒体技术》2018年第6期47-53,共7页Network New Media Technology

摘　　要：介绍了MSI相关概念,分析MSI相比传统引脚中断具有的重要优势,剖析MSI内核实现机制,提出龙芯3A平台实现MSI的技术方案。通过实验对比,实现MSI的龙芯3A平台更能满足基于PCIE的高速网络、存储等业务处理能力大幅提升的需求。Introduce the basics of MSIs,analyse important advantages in comparison with traditional pin-based interrupts,the implementation mechanism of MSIs in Linux kernel,and present the technical scheme of MSIs in loongson 3A platform.Through the comparison with experiment,Loongson 3A platform can more meet the need of PCIE - based high-speed network and high performance storage.

关 键 词：Loongson3A平台 MSI/MSI-X中断 HT总线 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]