Communication method in high-speed peripheral equipment interconnection system and high-speed peripheral equipment interconnection system

The invention is applicable to the technical field of computers. The invention provides a communication method in a high-speed peripheral equipment interconnection system and the high-speed peripheralequipment interconnection system. The method is applied to endpoint equipment, and comprises: driving and controlling a root complex equipment controller to access a configuration space by utilizingthe root complex equipment controller residing in first endpoint equipment so as to obtain topology and parameter resources of a high-speed peripheral equipment interconnection system, and initiatingdata interaction to the second endpoint device according to the physical address of the second endpoint device. The invention provides a communication method. The endpoint equipment can reversely callthe root complex equipment controller to access the configuration space, therefore, the topology and parameter resource information including the physical address of each endpoint device is obtained,the endpoint device can init