PHY register read-write method and device

Abstract

The invention provides a PHY register read-write method. The method comprises the following steps of binding an Applet operation function set to define an auxiliary function; analyzing the first command line parameter input by the user to obtain the access behavior of the user; calling a corresponding first processing function according to the access behavior; calling the auxiliary function through a first processing function to analyze a second command line parameter input by the user so as to obtain all physical access paths, and storing the analyzed data into a structure variable; and calling a second processing function corresponding to the first processing function, transmitting the structure variable as a parameter into the second processing function, and finding a corresponding PHYregister according to the parameter through the second processing function to carry out read-write operation. The PHY register read-write method is universal, adapts to all application scenarios and has good expandability.

Description

technical field [0001] The present invention generally relates to the field of computers, and more specifically, relates to a method and device for reading and writing PHY registers. Background technique [0002] Ethernet devices are essential core hardware resources for products such as servers and interactive computers. When low-level R&D personnel encounter similar abnormal problems such as inconsistency in sending and receiving data packets, packet loss when there is a large amount of data, etc., they not only need to read and write the registers of the monitoring MAC (MediaAccess Control, the lower part of the data link layer in the LAN), but also need to read and write Write the registers that monitor the PHY (Physical Layer, the physical layer in the OSI model). The access of PHY registers is different from the access of MAC registers. MAC devices are generally registered into the kernel as platform devices, and their registers are also dynamically mapped (ioremap) t...

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Problems solved by technology

[0005] In view of this, the purpose of the embodiment of the present invention is to propose a general-purpose, multi-scenario PHY register reading and writing tool, which is used to solve the problem that the registers of the PHY chip cannot be read through / dev / mem and a MAC externally connects multiple There is no problem that the PHY read and write register tool is available in the demand scenario of the PHY chip, and it can also support the read and write function of the extended register for complex PHY chips with more than 32 registers

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