Linux QDMA Software Architecture (PF/VF) - 3.4 English

Versal Adaptive SoC CPM DMA and Bridge Mode for PCI Express Product Guide (PG347)

Document ID
Release Date
3.4 English
Figure 1. Linux DMA Software Architecture

The QDMA driver consists of the following three major components:

Device control tool
Creates a netlink socket for PCIe device query, queue management, reading the context of a queue, etc.
DMA tool
Is the user space application to initiate a DMA transaction. You can use standard Linux utility dd or fio, or use the example application in the driver package.
Kernel space driver
Creates the descriptors and translates the user space function into low-level command to interact with the AMD Versal device.

For AMD QDMA Linux driver documentation, click here.