PCIe Configuration - 4.0 English

QDMA Subsystem for PCI Express Product Guide (PG302)

Document ID
PG302
Release Date
2022-05-20
Version
4.0 English

Several factors can throttle outgoing non-posted transactions. Outgoing non-posted transactions are throttled based on flow control information from the PCIe® integrated block to prevent head of line blocking of posted requests. The DMA will meter non-posted transactions based on the PCIe Receive FIFO space.