Queue Teardown - 3.3 English

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

Document ID
PG347
Release Date
2022-11-02
Version
3.3 English

Queue Tear-down (C2H Stream):

  • Send marker packet to drain the pipeline.
  • Wait for marker completion.
  • Invalidate/clear prefetch context.
  • Invalidate/clear completion context.
  • Invalidate/clear descriptor software context.
  • Invalidate timer context (clear cmd is not supported).

Queue Tear-down (H2C Stream & MM):

  • Invalidate/clear descriptor software context.