Apparatus, computer program product, and system for completing a plurality of chained list DMA commands that include a fenced list DMA command element

An apparatus and a computer program product are provided for completing a plurality of (direct memory access) DMA commands in a computer system. It is determined whether the DMA commands are chained together as a list DMA command. Upon a determination that the DMA commands are chained together as a...

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Bibliographische Detailangaben
Hauptverfasser: King, Matthew Edward, Liu, Peichum Peter, Mui, David, Yamazaki, Takeshi
Format: Patent
Sprache:eng
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Zusammenfassung:An apparatus and a computer program product are provided for completing a plurality of (direct memory access) DMA commands in a computer system. It is determined whether the DMA commands are chained together as a list DMA command. Upon a determination that the DMA commands are chained together as a list DMA command, it is also determined whether a current list element of the list DMA command is fenced. Upon a determination that the current list element is not fenced, a next list element is fetched and processed before the current list element has been completed.