PCIe-6.2.3 Error Signaling（错误信令）

6.2.3 Error Signaling（错误信令）There are three complementary mechanisms which allow the agent detecting an error to alert the system or another device that an error has occurred. The first mechanism is through a Completion Status, the second method is with in-band error Messages, and the third is with Error Forwarding (also known as data poisoning).翻译有三种互补的机制允许检测到错误的代理向系统或其他设备发出错误已发生的警报：第一种是通过完成状态（Completion Status），第二种是通过带内错误消息（Error Messages），第三种是通过错误转发（也称为数据污染）。SoC集成角度解释这三种机制不是互斥的，可以同时使用。作为SoC集成者，你需要确保PCIe IP支持所有三种机制（至少支持必要的组合），并理解它们各自适用的场景。