The AMD QDMA Subsystem for PCI Express ( PCIe® ) implements a high performance DMA for use with the PCI Express® 3.x Integrated Block with the concept of multiple queues that is different from the DMA/Bridge Subsystem for PCI Express which uses multiple AMD Card to Host (C2H) and Host to Card (H2C) channels.
This guide covers the QDMA Subsystem for PCIe® for AMD UltraScale+™ devices. For details about the AMD Versal™ adaptive SoC subsystem, refer to the Versal Adaptive SoC DMA and Bridge Subsystem for PCI Express Product Guide (PG344).