Message caching method, device and equipment

Abstract

The invention is suitable for the technical field of communication, and provides a message buffering method, device and equipment. The method comprises the steps: adjusting a message buffering access according to the size of a message flow, carrying out the buffering of an inputted message through the adjusted buffering access, and recording the access information of the message; obtaining the access information, reading the message from a buffering access corresponding to the access information, and outputting the read message. The method achieves the dynamic call of buffering accesses with different buffering capacities according to the congestion condition of the message flow, and guarantees that the message is not out of order through the access information of the recorded message when different buffering accesses are used for transmission. The message achieves the sharing of reading-writing bandwidth of a buffering storage unit Buffer, improves the utilization rate of the buffering storage unit Buffer, and facilitates the prevention of the package loss of the message during flow congestion.

Description

technical field [0001] The invention is applicable to the technical field of communication, and provides a message buffering method, device and equipment. Background technique [0002] In the network processor chip, the packet traffic is volatile, and there will be traffic bursts in a short period of time, resulting in traffic congestion on the data channel. To ensure that packets will not be discarded due to traffic congestion, congestion buffering of packets in the data channel is required. The prior art generally adds a Buffer (i.e. cache memory) to each data channel in the chip. The bandwidth of the Buffer is greater than or equal to the input bandwidth of the data channel, and the Buffer is serially connected in the data channel. If the message in the data channel When the input traffic is greater than the output traffic, the packets will be cached in the Buffer; when the output traffic of the packets in the data channel is greater than the input traffic, the cached pa...

AI Technical Summary

Problems solved by technology

[0003] However, the capacity and interface bandwidth growth rate of storage units such as on-chip RAM used as Buffer or external DDR on the chip cannot keep up with the bandwidth growth rate of network traffic.

When a network processor contains a lot of data channels that need to add Buffer, the existing method of connecting Buffers in data channels to form a buffer path, the number of Buffers and the capacity of Buffers will be unacceptable; and no matter whether When congestion occurs, all packets need to pass through the buffer channel where the Buffer is located, resulting in a waste of storage space

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