After a system reset or power-up, configuration software scans the PCIe fabric to discover the system topology and determine how devices are connected. This process, known as PCIe Enumeration, involves assigning bus numbers, accessing configuration space, and setting up resources. In this video, we'll break down how enumeration works, including the role of primary and secondary buses in bridge devices.
Download the file here:https://drive.google.com/file/d/1tnrH4adcnLy1qetiKuR8NXZ3OtxM9ibe/view?usp=sharing