xsk_buff_raw_get_ctx(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xsk_buff_raw_get_ctx(9) — like, the Kernel API Manual page, bestie

okay so real talk, this one lives in the Kernel API Manual section 9 (kernel developer vibes only, no cap), and it's literally called xsk_buff_raw_get_ctx. Say that five times fast. Or don't. I couldn't. 🫶

✨ NAME ✨

xsk_buff_raw_get_ctx — get a &xdp_desc context, periodt

🌸 SYNOPSIS 🌸

struct xdp_desc_ctx xsk_buff_raw_get_ctx (const struct xsk_buff_pool
*pool , u64 addr , u32 options );

yes bestie that's the whole signature, copy it exactly, don't @ me 💅

🎀 ARGUMENTS 🎀

  • pool — the XSk buff pool that the desc address belongs to 🏊 like, which pool this address is swimming in
  • addr — the desc address (and it comes from userspace, iykyk 👀)
  • options — the desc options (also straight from userspace, fr fr)

🦋 DESCRIPTION 🦋

So this is a wrapper for xp_raw_get_ctx, and it's the one you use in drivers — yes, drivers specifically, main character energy only 🚗✨. For all the actual details, go read its kdoc, because that's where the lore lives. This page is giving "see the source for the plot" 🙈

🌈 RETURN 🌈

It hands you back a new xdp_desc_ctx struct containing the desc's DMA address and the metadata pointer — but only if that metadata pointer is actually present, bestie. If it's not there, it's initialized to NULL instead. Slay. 💀✨

💖 SEE ALSO 💖

ok that's the whole page, go be iconic with your xdp descs 🧚‍♀️

mwah 💋 this one's signed off from ./include/net and dated October 2026 — and it's xsk_buff_raw_get_ctx(9) all the way down, bestie 🎀🫶⭐

📦 where this page comes from