Method, system for transmitting PCIE data and plate card thereof
A technology for data transmission and purpose, applied in the fields of methods, PCIE data transmission, systems and boards, can solve the problems affecting the basic operation of the CPU, header blocking, large transmission delay, etc., to improve the performance, speed and efficiency of packet forwarding Guaranteed effect
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[0065] The present invention provides a method for PCIE data transmission, which is applied to a system including a line card board, a main control board and a PCIE switch. The line card board also includes an address isolation device and a message buffer device. The method is specific The process is shown in Figure 5 and includes the following steps:
[0066] In step s501, the CPU of the source line card board receives the message from the physical port.
[0067] In step s502, the CPU of the source line card applies to the address isolation device of the board for free space in the idle message buffer device, and the address isolation device returns the free address of the message buffer device to the CPU. Wherein, the address isolation device of the source line card board can obtain the free address of the message cache device of the destination line card board through the PCIE switch from the address isolation device of the destination line card board; The address isolatio...
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