Method for receiving and buffering high-speed FC bus data in host computer environment
A technology of host environment and buffering method, which is applied in the field of computer communication, can solve the problems of low-speed data processing, loss of FC original data, etc., and achieve the effect of improving integrated development and compatibility
Active Publication Date: 2015-06-17
AVIC NO 631 RES INST
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Problems solved by technology
The transmission rate of the FC bus is above 1.0625Gbps, but many host applications need to implement low-speed data processing, such as sending the received FC message data to CAN, 1553B, RS422, Ethernet and other networks whose transmission rate is much lower than that of the FC bus. This is easy to cause the loss of FC original data due to the failure of the host to process in time
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[0024] The implementation manner will be described in detail below in conjunction with the accompanying drawings.
[0025] First, the implementation architecture is introduced, such as figure 1 Shown:
[0026] The high-speed FC bus data reception management in the host environment is realized through a proprietary mechanism built on the FC interface unit and the host unit.
[0027] The FC interface unit includes a host interface, and a DMA engine connected to the host interface, DMA control registers, interrupt management registers, and reception management logic, as well as a reception management register group connected to the reception management logic, and the DMA engine and DMA control registers and reception management logic Connection; receiving management register group includes message ID register, FC message receiving buffer head pointer and FC message receiving buffer tail pointer.
[0028] The host unit includes a processor and a memory, and an FC message receivi...
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The invention relates to a method for receiving and buffering high-speed FC bus data in the host computer environment. By the adoption of the method, high-speed FC bus data are prevented from being lost during low-speed host computer application. According to the method for receiving and buffering the high-speed FC bus data in the host computer environment, interconnection between FC interface units and a host computer unit is achieved through standard buses, corresponding FC message receiving and buffering areas are established in a host computer memorizer according to different FC message data, and the host computer memorizer is shared by the FC interface units in a DMA mode, so that high-speed receiving of FC interface data is achieved; meanwhile, a data buffering mechanism is established, an annular buffer area is established in the host computer memorizer, buffering of high-speed FC bus data is achieved, and the integrality of data submitted to a host computer to be processed is guaranteed. According to the method for receiving and buffering the high-speed FC bus data in the host computer environment, the mechanism design is simple, the efficiency is high, and the portability is high; the standard host computer interface design is adopted, and integrated development and compatibility of an FC bus interface are greatly improved.
Description
technical field [0001] The invention belongs to computer communication technology, in particular to a method for receiving and buffering high-speed FC bus data in a host computer environment in a communication network. Background technique [0002] In the development process of the communication system, it is necessary to submit the received high-speed FC bus data to the host application for processing. The transmission rate of the FC bus is above 1.0625Gbps, but many host applications need to implement low-speed data processing, such as sending the received FC message data to CAN, 1553B, RS422, Ethernet and other networks whose transmission rate is much lower than that of the FC bus. This is likely to cause the loss of FC original data due to the failure of the host to process in time. Therefore, in order to avoid this situation, it is necessary to provide a high-speed FC bus data receiving and buffering implementation method. Contents of the invention [0003] The obje...
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IPC IPC(8): G06F13/42
Inventor 朱志强黄韬邓发俊李健
Owner AVIC NO 631 RES INST