Method and device for data communication among multiple processors

Abstract

The embodiment of the invention discloses a method and device for data communication among multiple processors, and the method comprises: enabling any processor to determine a corresponding message sending queue in a memory according to the occupied space of a to-be-sent message, and storing the to-be-sent message into the message sending queue; determining an address of a received message queue corresponding to the address of the sent message queue according to high-speed serial computer extension bus standard PCIE address mapping; and storing the to-be-sent message into the received messagequeue according to the address of the received message queue, so as to enable a processor receiving the to-be-sent message to read the to-be-sent message from the received message queue. According tothe embodiment of the invention, the message sending queues and the message receiving queues are arranged in the memories of the processors, message-based data communication between the two processorsis completed through PCIE address mapping, data receiving and sending interfaces of the processors are unified, data reading and writing are convenient to operate and maintain, and the communicationefficiency between the processors is greatly improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a data communication method and device among multiple processors. Background technique [0002] As users have higher and higher requirements on the processing capabilities of smart devices, multi-processor smart devices have become more and more popular. Especially in the base station system, the high efficiency and real-time performance of communication between different processors is the key technology of the current base station system. A high-speed transmission channel is a bridge for communication between different processors. Currently, PCIE (Peripheral Component Interconnect Express, a high-speed serial computer expansion bus standard) has become a widely used communication protocol between processors. [0003] However, the existing method of using PCIE communication between processors is similar to DMA (Direct Memory Access, direct mem...

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Problems solved by technology

[0004] In the process of realizing the embodiment of the present invention, the inventor found that the address of reading and writing data in the existing method needs to be jointly maintained by both the sender and the receiver; it increases the difficulty of use, the interface of the receiver to receive data is not uniform, and the processing flow of the receiver is complicated; and When the number of processors is large, one processor needs to agree on communication rules with multiple processors, which is easy to confuse

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