Asynchronous and Queue Based Interrupts - 1.0 English

Versal ACAP DMA and Bridge Subsystem for PCI Express Product Guide (PG344)

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1.0 English

The QDMA supports both asynchronous interrupts and queue-based interrupts.

The asynchronous interrupts are used for capturing events that are not synchronous to any DMA operations, namely, errors, status, and debug conditions.

Interrupts are broadcast to all PFs, and maintain status for each PF in a queue based scheme. The queue based interrupts include the interrupts from the H2C MM, H2C stream, C2H MM, and C2H stream.