Huawei Technologies Co., Limited

Er Nie

Yongyao Li

Fei Luo

Kun Wang

Jian Guo

Chuanning Cheng

Pan Li

This application provides a data processing method, a device, and a data transmission system. The method includes: A first device determines a first mode from a plurality of error detection and correction modes based on an obtained first status parameter of a data link. Then, the first device may indicate a second device to use the first mode for encoding, the first device may use the first mode for decoding, thereby implementing error detection and correction of transmitted data. In the method provided in this embodiment of this application, the first device and the second device may support a plurality of error detection and correction modes, and the first device may determine a used error detection and correction mode based on a status parameter of the data link.

Data processing method and device, and data transmission system

This application provides a spread spectrum clock negotiation method, and a peripheral component interconnect express device and system, to implement dynamic negotiation between a transmit end and a receive end on an SSC capability in the peripheral component interconnect express system. The method includes: A second PCIe device generates first indication information, where the first indication information is used to indicate whether the second PCIe device has a spread spectrum clock capability. The second PCIe device sends the first indication information to a first PCIe device. The first PCIe device determines, based on the first indication information, whether to perform spread spectrum clock on a reference clock of the first PCIe device.

Spread spectrum clock negotiation method, and peripheral component interconnect express device and system

A fast equalization method is provided, which includes: storing a receive parameter and a transmit parameter, of each of a primary chip and a secondary chip, that meet a link stability requirement and that are obtained when link equalization is previously performed; and when determining that link equalization needs to be performed, configuring, as first fast equalization timeout duration, a larger value in initial fast equalization timeout duration of the primary chip and initial fast equalization timeout duration of the secondary chip, and invoking the foregoing receive and transmit parameters, so that the primary chip and the secondary chip perform a current time of link equalization based on the first fast equalization timeout duration and the foregoing transmit and receive parameters.

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Shenzhen, China

Er Nie