Verification method, device and equipment for PCIe DMA data path

Abstract

The invention discloses a verification method for a PCIe DMA data path, which is applied to a verification platform. The method can establish a port connection between a PCIe Host and the verificationplatform based on a TLM communication technology of a UVM, thereby obtaining a TLP packet written into a far-end memory space by DMA through the port connection, and extracting actual write data fromthe TLP packet according to effective information of the TLP packet header; finally, the correctness of the PCIe DMA write data path is verified by comparing the local original write data with the actual write data, so that the limitation on the DMA read-write operation triggering sequence and the access address in the verification environment is overcome, and the flexibility of the PCIe DMA datapath verification scheme is remarkably improved. In addition, the invention further provides a verification device and equipment for a PCIe DMA data path and a readable storage medium, and the technical effects of the verification device and equipment correspond to the technical effects of theverification method.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a verification method, device, equipment and readable storage medium of a PCIe DMA data path. Background technique [0002] Currently, PCIe is widely used in LSI design. In the front-end verification of SoC (System on Chip, system on chip) with PCIe devices, the verification of PCIe DMA (Direct Memory Access, direct memory access) is crucial, because the most commonly used batch processing in PCIe controllers The function of large-scale data is DMA. [0003] At present, the commonly used PCIe DMA data path verification scheme simultaneously verifies the read and write data path. The specific verification process is: send a write command at the device end of the data path, and write a piece of known data into the known address space of the host end of the data path; The device side sends a read command to read back the data from the host side, and the address is the ...

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Problems solved by technology

[0006] The purpose of this application is to provide a verification method, device, equipment and readable storage medium of a PCIe DMA data path, in order to solve the current verification scheme for the PCIe DMA data path to the DMA read and write operation trigger sequence and access address. Restrictions, resulting in poor solution flexibility

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