A message receiving method, network card and electronic equipment

Abstract

The application provides a message receiving method, a network card and electronic equipment. The method includes: receiving the first message transmitted through the physical network port; loading the network port ID of the physical network port and the first message into the DMA memory, and identifying the state in the DMA descriptor corresponding to the first message Set; extract the first message from the set DMA descriptor, and add the virtual interface identifier corresponding to the network port ID to the first message to obtain the second message; save the second message to the receiving queue In: taking out the second packet from the receiving queue according to the virtual interface identifier, and storing the second packet in a buffer corresponding to the virtual interface identifier. In the embodiment of the present application, the first message and the corresponding network port ID are stored in the DMA descriptor, and then the corresponding second message is fetched from the receiving queue according to the virtual port ID corresponding to the physical network port, thereby realizing multiple The physical network port shares the DMA memory and the receiving queue, and effectively prevents packet stringing.

Description

Technical field [0001] The present application relates to the field of communication technologies, and in particular, a packet receiving method, a network card and an electronic device. Background technique [0002] Intel network card costs, hardware core components and software programs are abroad. figure 1 Intel network card structure provided for prior art, such as figure 1 As shown, there is a bridge inside the Intel network card. From the hardware, a PCI interface can be divided into four PCI slots, respectively correspond to the four physical grid ports, and each network port of the network card has independent DMA. Descriptor base register, send and receive a descriptor queue. [0003] figure 2 Schematic structural diagram of the Intel NIC operation of the prior art, such as figure 2 As shown, each PCI interface corresponds to a PCI slot, the Intel network card access device launches the Linux system, and then loads the E1000 NIC driver, you can register a network device ...

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Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a message receiving method, network card and electronic equipment to solve the problem that in the prior art, when using the E1000 network card driver to drive a network card without a bridge chip, multiple physical network ports cannot be used for data processing. sending and receiving problems

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