A kind of pcie switch chip port configuration system and method

Abstract

A PCIE switch chip port configuration system and method, including a switch chip core, multiple ports, and an EEPROM controller interface, wherein the switch chip core further includes a crossbar switch and a configuration module; the crossbar switch is used for forwarding the transaction layer packet passing through the PCIE switching chip; the configuration module is used to configure the port, configure the port as an upstream port or a downstream port, and control the timing of establishing a link for each port link; the The upstream port accepts the configuration from the upstream link and the configuration of the configuration module, and performs read or write operations on its internal port configuration register unit; the downstream port receives the configuration information from the configuration module, and its internal port The configuration register unit is read or written. The invention can ensure that the port configuration is completed quickly, and meet the time limit requirement of the PCIE protocol for the initialization of the PCIE chip.

Description

technical field [0001] The present invention relates to the technical field of high-speed interconnection bus (Peripheral Component Interconnect Express, PCIE) of computer peripheral equipment, in particular to a PCIE switch chip port configuration system and method. Background technique [0002] The PCIE bus is based on the traditional PCI system, retains some excellent features of the traditional PCI bus, and is compatible with the PCI bus in terms of software configuration. The PCIE bus changes the parallel bus structure of PCI to serial to break through the speed bottleneck, and at the same time uses point-to-point connections, CRC checks, etc. to ensure high real-time and high reliability of the data bus. A high-performance, general-purpose I / O interconnect bus defined for a variety of computing and communication platforms. The PCIE bus is currently widely used in computing systems such as workstations and servers, as well as embedded computing and communication platfo...

AI Technical Summary

Problems solved by technology

Although there are many PCIE switch chips on the market, it is difficult to find literature on the specific implementation mechanism of the PCIE switch chip port configuration. This patent proposes a PCIE switch chip port configuration implementation mechanism, which can quickly realize the port configuration of the PCIE switch chip. , to meet the PCIE protocol's time limit requirements for PCIE chip initialization

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