Queue Teardown - 1.0 English

Versal ACAP DMA and Bridge Subsystem for PCI Express Product Guide (PG344)
Document ID
PG344
Release Date
2022-05-20
Version
1.0 English

Queue Tear-down (C2H Stream):

  • Send Marker packet to drain the pipeline.
  • Wait for Marker completion.
  • Invalidate/Clear Descriptor Software Context.
  • Invalidate/Clear Prefetch Context.
  • Invalidate/Clear Completion Context.
  • Invalidate Timer Context (clear cmd is not supported).

Queue Tear-down (H2C Stream & MM):

  • Invalidate/Clear Descriptor Software Context.