Baseboard management control chip, video data transmission method and server

Abstract

The invention discloses a substrate management control chip, a video data transmission method and a server, the substrate management control chip comprises a video graphic array module, a storage controller and a memory, the video graphic array module comprises a first detection module, a resolution module and a register updating module, the first detection module is configured to detect whether the video graphic array module is accessed to local display equipment; the resolution ratio module is configured to obtain the resolution ratio of local display equipment and judge whether the resolution ratio of the local display equipment is greater than a preset resolution ratio, and the register updating module is configured to set the priorities of the video graphic array module, the video compression control module and the Ethernet medium access control module based on a priority strategy. The data is sent to the storage controller; the storage controller is configured to update a priority-related register in the storage controller based on the priority information. According to the scheme of the invention, the reasonable allocation of the memory bandwidth is realized.

Description

technical field [0001] The invention relates to the technical field of servers, in particular to a baseboard management control chip, a video data transmission method and a server. Background technique [0002] The transmission of the video data stream in the traditional baseboard management control chip is as follows: first, the baseboard management control chip receives the video data to the VGA (Video Graphics Array, video graphics array) module, and the VGA module writes the video data into the memory. If the VGA module is connected to If a VGA display (a local display with a VGA interface) is installed, the VGA module reads video data from DDR (Double Data Rate, double-rate synchronous dynamic random access memory) and sends it to the VGA display. There are two ways for the video compression control module to obtain the video data, one is to obtain the video data directly from the VGA module, the other is to read the video data from the DDR. The video compression contro...

AI Technical Summary

Problems solved by technology

[0003] During the above video reading process, due to the relatively large amount of video data, three modules may simultaneously read and write the memory operation, resulting in slow reading of video data and problems such as stuttering.

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