ice_realloc_rx_xdp_bufs(9)

📦 version 7.3.1, in nixpkgs unstable

💖 ice_realloc_rx_xdp_bufs(9) 💖

okay so first things first, bestie — this is a page from the Kernel API Manual, and today's main character is ice_realloc_rx_xdp_bufs, which is literally a function that handles reallocating for either XSK or normal buffers. yes. that's the whole name. we love a descriptive queen 👑

✨ SYNOPSIS ✨

int ice_realloc_rx_xdp_bufs (struct ice_rx_ring *rx_ring , bool
pool_present );

like, look at her. she takes two things and she gives you back an int. no cap, that's it. 🎀

🌸 ARGUMENTS 🌸

  • rx_ring — the Rx ring, obviously. it's a struct ice_rx_ring * and it's the ring we're doing all this buffer nonsense on. main character energy fr 💅
  • pool_present — a bool that tells you whether the pool for XSK is present. that's it, that's the whole vibe check. true = pool's there, false = it's not. lowkey simple.

🦋 DESCRIPTION 🦋

so here's the tea ☕ — this function tries to allocate memory, and if that allocation fails, it returns ENOMEM. like, sorry bestie, out of memory, it's giving struggle. 😭

but if the allocation is actually successful? then it substitutes the buffer with the allocated one. glow-up complete. ✨

and the return situation:

  • 0 on success — we ate, no crumbs 🍓
  • negative on failure — we did not eat, we are crying 💀
just to be super clear: it tries to allocate, and the failure path hands back ENOMEM. don't come for me, that's literally what the page says 🙈

👑 SEE ALSO 👑

the kernel file this lives in, for the curious girlies who wanna read the source:

  • Kernel file ./drivers/net/ethernet/intel/ice/ice_xsk.c 🧚

and the full friend group, in order, exactly as listed, no one left out:

that's the whole squad. go say hi. 💜

and that's the page!! this icon came to you from ./drivers/net/ethernet/intel/ice, dated October 2026 — huge thanks to the kernel crew for keeping the lore alive, mwah 💋✨

📦 where this page comes from