PCIE root complex message interrupt generation method using endpoints

A method and apparatus for generating message interrupt is disclosed. In one embodiment, the method includes writing a predefined data pattern to a predetermined source location in a memory system. One or more first data blocks are also stored in the memory system at one or more first locations, respectively. After storing the one or more first data blocks at the one or more first source locations, a first data structure is created, the first data structure including one or more first source addresses mapped to one or more first target addresses, respectively, and a predetermined source address mapped to a predetermined target address, wherein the one or more first source addresses respectively correspond to the one or more first source locations, and wherein the predetermined source address corresponds to a predetermined source location. A DMA controller is capable of communicating data stored at the one or more first storage locations and communicating predetermined data using the first data structure. 公开一种