Direct media interface bandwidth distributor and server

Abstract

The invention discloses a direct media interface bandwidth distributor and a server, and the direct media interface bandwidth distributor comprises: a multiplexer which is configured to selectively conduct a first gating end or a second gating end to a connecting end based on an input signal of a control end; a central processing unit which is connected to the first gating end through a four-way direct media interface; a platform controller concentrator which is connected to the central processing unit through a four-way direct media interface and is connected to the connecting end through a four-way variable interface; a hard disk backplane which is connected to the second gating end through four paths of hard disk interfaces and comprises a field replaceable unit storing hard disk backplane configuration; and a substrate management controller which is connected to the field replaceable unit to obtain the hard disk backboard configuration, and is connected to the control end to switch the channel conducted by the multiplexer according to the hard disk backboard configuration. According to the invention, the DMI bandwidth can be switched based on the identified different configurations, the flexibility is improved, and the hardware cost is reduced.

Description

technical field [0001] The invention relates to the field of data transmission, more specifically, a direct media interface bandwidth allocator and server. Background technique [0002] With the rapid development of Internet technology, the demand for servers of various Internet companies has risen sharply, and the corresponding demand for servers with high computing density and high computing efficiency is also increasing. However, high-density computing is often limited by high bandwidth, and some of them The reason is also due to the low communication bandwidth between CPU (Central Processing Unit) and PCH (Platform Controller Hub). Each company will continue to innovate chip technology accordingly. With the advent of a new generation of CPU, the CPU on the Eagle Stream platform can support up to x8 DMI (Direct Media Interface), and can communicate with HSIO (High Speed ​​Input Output System) through BIOS (Basic Input Output System). interface) to configure the correspon...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing technical solutions, the DMI design of the server is fixed bandwidth, which cannot be automatically configured as x4 or x8 according to the configuration. Time-consuming and labor-intensive, and less flexible

[0005] There is no effective solution to the problems of difficult direct switching of DMI bandwidth configuration, poor flexibility, and high hardware cost in the prior art

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