FCoE protocol acceleration engine IP core based on AXI4 bus formwork

Abstract

The invention discloses an FCoE protocol acceleration engine IP core based on an AXI4 bus formwork, and belongs to the field of Ethernet fiber channels. The FCoE protocol acceleration engine IP core based on the AXI4 bus formwork is applied to an FCoE fusion network adapter and comprises a transmitting module, a receiving module and a control module. The FCoE protocol acceleration engine IP core is based on the AXI4 bus formwork, a register is configured for the IP core through an AXI4-Lite bus, an AXI4 bus is used for reading and writing a transmitting / receiving descriptor, and an AXI4-Stream high-speed channel is used for transmitting sent / received data. The FCoE protocol acceleration engine IP core can be controlled by a CPU of the FCoE fusion network adapter, the IP core is specially used for meeting the need of FCoE data frame hardware processing in the field of Ethernet fiber channels, a full duplex operating mode is adopted, real-time performance and high efficiency are achieved in operation, the data throughout is large, the transmission rate is high, and lossless transmission can be achieved. The FCoE protocol acceleration engine IP core based on the AXI4 bus formwork can support FCoE data segmenting / merging processing and cannot damage the function of the Ethernet and simple root virtualization.

Description

Technical field [0001] The present invention belongs to the technical field of Ethernet fiber channel, and more specifically, relates to an FCoE protocol acceleration engine IP core based on an AXI4 bus architecture. Background technique [0002] With the development of technologies such as the Internet of Things and cloud computing, the data that Internet companies need to process has exploded, and the huge amount of data requires efficient storage and high-speed processing. In order to cater to this trend, Internet companies must build enterprise-level data centers. [0003] The data center is formed by the integration of a storage network (Storage Area Network, hereinafter referred to as SAN) and a local area network (Local Area Network, hereinafter referred to as LAN). SAN is mainly based on the Fibre Channel protocol (Fibre Channel, FC) to form a network of storage devices and servers. The no frame loss, low latency, and high bandwidth of the Fibre Channel protocol is the bes...

AI Technical Summary

Problems solved by technology

The existing IP core solution must be connected with a third-party Ethernet MAC controller with DCB function. However, the current MAC controller with DCB function has not been widely used, resulting in the narrow application range of the existing IP core. Poor compatibility, unable to meet actual needs;

[0007] 2. The existing IP core solution only performs cyclic redundancy check (Cyclic Redundancy Check, hereinafter referred to as CRC) processing and frame header and frame tail processing, and the protocol processing is weak

Since the existing IP core does not have a dedicated processing module for FCoE frames, the host CPU still has to bear a large responsibility for network protocol processing, resulting in low performance of the host CPU and low overall performance of the converged network;

[0008] 3. The existing IP core solution supports AXI4-Lite lightweight bus and AXI4 bus architecture, and the rate is not high when transmitting a large amount of data. It cannot meet the requirements of high-speed transmission of large amounts of data in the converged network, which will cause the link data to be unable to be transmitted in time. Host processing, resulting in data retention and congestion, reducing network performance;

Existing IP core solutions cannot provide the above advantages, and if software virtualization is fully used, it will also increase the burden on the host system

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