基于申威架构的PCIe热插拔的实现  

Implementation of PCIe Hot-Plug Based on Shenwei Architecture

作　　者：李蓓蓓 苏卫强 石良军 韩文燕 LI Beibei;SU Weiqiang;SHI Liangjun;HAN Wenyan(Wuxi Advanced Technology Research Institute,Wuxi 214072,China)

机构地区：[1]无锡先进技术研究院,江苏无锡214072

出　　处：《测控技术》2023年第8期83-88,93,共7页Measurement & Control Technology

基　　金：国家自然科学基金项目(62174150);基础加强研究项目基金(2019-JCJQ-ZD-185-00)。

摘　　要：PCIe热插拔是服务器实现高可靠性(Reliability)、高可用性(Availability)、高服务性(Serviceabili-ty)(简称RAS特性)的一个重要功能。基于申威3231处理器的PCIe硬件设计,遵循PCIe热插拔协议规范,探索了热插拔技术软硬件接口的实现机制。利用Linux内核PCIe热插拔子系统的软件栈,验证了接口设计的正确性,满足了服务器国产化特殊应用场景的需求。PCIe hot-plug is an important function for a server to achieve high reliability(R),high availability(A),and high serviceability(S)(referred to as RAS feature).The hardware design of PCIe based on SW3231 processor follows the PCIe hot-plug protocol specification,the implementation mechanism of the hardware and software interface of hot-plug technology is explored.The software stack of the Linux kernel PCIe hot-plug subsystem is used to verify the correctness of the interface design,which meets the needs of special application scenarios of server localization.

关 键 词：热插拔 RAS 服务器 内核 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构] TN402[自动化与计算机技术—计算机科学与技术]