ib_dma_unmap_page(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay bestie, this is the ib_dma_unmap_page(9) page from the Kernel API Manual, and it does one iconic job: destroy a mapping created by ib_dma_map_page(). That's the whole vibe. 👑

✨ SYNOPSIS ✨

Here's the signature in all its main-character glory:

void ib_dma_unmap_page (struct ib_device *dev , u64 addr , size_t size ,
       enum dma_data_direction direction );

🌸 ARGUMENTS 🌸

  • dev — The device for which the DMA address was created
  • addr — The DMA address
  • size — The size of the region in bytes
  • direction — The direction of the DMA

🦋 SEE ALSO 🦋

Kernel file ./include/rdma/ib_verbs.h is the home base, and the whole reference squad is:

mwah 💋 that's the whole page, bestie. Cute little sign-off: source ./include/rdma, dated October 2026, and the page is ib_dma_unmap_page(9). 💅✨

📦 where this page comes from