nfp_cpp_area_alloc_acquire(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nfp_cpp_area_alloc_acquire(9) — from the Kernel API Manual, bestie

okay so picture this: it's a Tuesday, you're deep in the nfp driver, and you need a whole new CPP area that's already locked down. yeah. that's this function. she allocates, she initializes, she locks — all in one move. main character energy fr 💖

✨ NAME ✨

nfp_cpp_area_alloc_acquire — allocate a new CPP area and lock it down 🔒

🌸 SYNOPSIS 🌸

struct nfp_cpp_area * nfp_cpp_area_alloc_acquire (struct nfp_cpp *cpp ,
const char *name , u32 dest , unsigned long long address , unsigned long
size );

like, she takes five things and gives you back a handle. no cap. ✨

🎀 ARGUMENTS 🎀

  • cpp — the CPP handle, aka your whole entire entry ticket 🎟️
  • name — the name of the region, so future-you knows what's up
  • dest — the CPP id
  • address — the start address on the CPP target 📍
  • size — how big the area is

🦋 DESCRIPTION 🦋

So what she actually does: she allocates and initializes a CPP area structure, and then locks it down so you can access it directly. that's the whole vibe. allocate → init → lock → go 🚀

💀 NOTE 💀

bestie listen. address and size must be 32-bit aligned values. not optional. not vibes-based. aligned. 😭
also — the area must be 'released' when the structure is freed. don't just free her and walk away, that's so not slay of you 🙈

⭐ RETURN ⭐

An NFP CPP Area handle. or NULL. that's it, that's the whole return value, iykyk 💅

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c

and honestly the whole friend group, here's the full guest list 🫶:

okay and that's the page!! source is ./drivers/net/ethernet/netrono… and she's dated October 2026, so like, future girlie behavior honestly. mwah 💋 go forth and align your 32-bit values bestie 💜

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