Market low-delay interface device based on FPGA (Field Programmable Gate Array)

Abstract

The invention discloses a market condition low-delay interface device based on an FPGA (Field Programmable Gate Array), which is used for reducing the interface delay and greatly improving the efficiency. According to the technical scheme, an interface device uses an FPGA to achieve a PHY protocol (including a PCS layer, namely a physical coding sub-layer and an MAC layer, namely a medium access control layer) and a TCP protocol (mainly TCP mirror image processing) to receive the stock quotation, then the analyzed stock quotation is forwarded to a client through a UDP protocol, and the FPGA is used to achieve 10-gigabit Ethernet and the TCP protocol to achieve data receiving and forwarding of the stock quotation. Specifically, in the interface device provided by the invention, the original standard Ethernet layering (PCS layer and MAC layer) is improved to be realized by mixing the two layers together as a module instead of layering according to a standard protocol, so that the number of the realized modules is reduced, the time delay caused by each module is reduced, and the data output of the Ethernet interface is accelerated.

Description

technical field [0001] The invention relates to a low-delay interface device, in particular to a low-delay interface device applied to market data of financial business, especially securities business. Background technique [0002] The current mainstream securities market processing and distribution system generally uses traditional network cards for data reception and distribution, and network cards rely on CPU to process TCP / IP data streams through software, which brings huge overhead to the system. [0003] However, with the development of embedded technology, especially FPGA has the characteristics of low latency and high concurrency, how to use this characteristic of FPGA hardware in the stock market processing and distribution system to replace the traditional network card relying on CPU to process TCP / The method of IP data flow, thereby reducing the delay of market data transmission, and improving it is an urgent problem to be solved in the industry. [0004] Accord...

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Problems solved by technology

[0002] The current mainstream securities market processing and distribution system generally uses traditional network cards for data reception and distribution, and network cards rely on CPU to process TCP / IP data streams through software, which brings huge overhead to the system

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