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Add support for DMA mapping API #256

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joelsmithTT opened this issue Nov 4, 2024 · 1 comment
Open

Add support for DMA mapping API #256

joelsmithTT opened this issue Nov 4, 2024 · 1 comment

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@joelsmithTT
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In UMD PCIDevice code, add an API for mapping memory for DMA through the IOMMU.

uint64_t map_for_dma(void *buffer, size_t size); // returns DMA addr

KMD supports this in 1.29, so a version check in UMD is a good idea.
UMD can determine whether the card is behind IOMMU, so check that too.
@pjanevskiTT pjanevskiTT added the P1 Major issues with workarounds available, fix soon label Nov 5, 2024
@pjanevskiTT
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Related to #257 and #133

@broskoTT broskoTT removed the P1 Major issues with workarounds available, fix soon label Nov 26, 2024
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@joelsmithTT @broskoTT @pjanevskiTT