在研究了因特网小型计算机系统接口(iSCSI)和智能I/O(intelligent I/O,120)协议的基础上,提出了一种基于智能I/O协议的嵌入式iSCSI主机总线适配器(HBA)的体系结构,并在Intel嵌入式开发板IQ80321上实现了该iSCSI HBA体系结构。经过性能测试证明,该实现能减轻主机CPU的负载,且性能较好。
The architecture of iSCSI (internet small computer system interface) HBA (host bus adapter) is presented and analyzed. According to this architecture, the iSCSI HBA based on intelligent I/O is implemented in Intel IQ80321 embedded platform, as experiment has proved, HBA can effectively reduce the load of host computer's CPU and achieve a good performance.