Realization method for virtual Ethernet card and device
An implementation method, Ethernet technology, applied in the field of high-speed bus data communication, can solve the problems of high data framing overhead, low bandwidth utilization, and large business interference, and achieve the goals of reducing overhead, improving bandwidth utilization, and reducing processing overhead Effect
Inactive Publication Date: 2019-03-08
CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
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Problems solved by technology
[0003] (1) The interdependence between the Ethernet card and the FC card results in greater business interference
[0004] (2) The logical bottom layer of the FC card has a large overhead for data framing
[0005] (3) The inapplicability of the traditional Ethernet polling receiving mechanism leads to low bandwidth utilization
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.
[0028] Such as figure 1 Shown: the FC node card device based on the PCIE interface described in this embodiment is composed of a core board and a transfer backplane, wherein the core board is composed of an FPGA core processing module, a DDR3 memory, etc., and the transfer backplane is composed of an optical Composed of modules, optical fiber connectors, and PCIE interfaces, the PCIE interface on the backplane is connected to the FMC interface to complete data transmission and reception. The PCIE bus is interconnected with the main control board to realize the communication connection between the entire FC node card and the host system, and complete the data exchange between the main control board and the external optical fiber link. The device can convert the Ethernet service into ...
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The invention discloses a realization method for a virtual Ethernet card. Ethernet application software is identified as an FC node card in a link layer and is identified as the FC node card and an Ethernet card in an application layer, the same hardware is shared physically, and FC business and Ethernet business are mutually independent and non-interfering. An FC node card device is composed of acore board and a transfer baseboard. The core board comprises an FPGA core processing module and a DDR3 memory. The transfer baseboard comprises an optical module, an optical fiber connector and a PCIE interface. The baseboard PCIE interface is in transfer connection with an FMC interface. Data transmitting and receiving are finished. Through interconnection of a PCIE bus and the main control board, communication connection between the whole FC node card and a host system is realized. Data exchange of the main control board and an external optical fiber link is finished. According to the method, smooth upgrading of the original software on new hardware is satisfied, compatibility is relatively good, an effective solution for multi-business transmission channel multiplexing is provided, and the method can be successfully applied to FC bus related equipment.
Description
technical field [0001] The invention belongs to the technical field of high-speed bus data communication, and in particular relates to a method and a device for realizing a virtual Ethernet card. Background technique [0002] As a new transmission network, the FC bus network has the characteristics of high bandwidth and low delay. The existing FC bus technology provides a new network access method for the host at the link layer. However, this Changes will lead to huge changes in the application layer software. In order to enable the original Ethernet application software to directly run on the FC node card based on the PCIE interface, it is necessary to design a FC bus virtual network card driver method and device to make it on the link The layer is identified as FC node card, and the application layer is identified as FC node card and Ethernet card respectively, which satisfies the smooth upgrade of the original software on the new hardware. This method does not affect the...
Claims
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IPC IPC(8): H04L12/02H04L29/06H04L29/12
CPCH04L12/02H04L69/08H04L61/5092H04L2101/622
Inventor 李金凤卫铁锤李帅兵韦璞陈旭辉刘朋
Owner CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD