rxe_mcast_add(9)

📦 version 7.3.1, in nixpkgs unstable

✨ rxe_mcast_add(9) — the kernel API glow-up ✨

Okay so bestie, welcome to rxe_mcast_add, a little function from the Kernel API Manual (that's the 9 section, iykyk) and honestly? It's giving "small but iconic." Let's get into it 💅

🌸 NAME 🌸

rxe_mcast_add — literally the function that adds a multicast address to an rxe device. That's it. That's the whole vibe. 🎀

🦋 SYNOPSIS 🦋

int rxe_mcast_add (struct rxe_dev *rxe , union ib_gid *mgid );

Returns an int, takes two args, no cap. Copy it exactly if you're writing code, bestie — the spacing is the original's, don't come for me. 💖

🎀 ARGUMENTS 🎀

  • rxe — the rxe device object. Like, the actual thing you're adding the multicast address to. Main character energy. 👑
  • mgid — the multicast address, but in gid form. Yes, as a gid. That's the whole description, bestie, it's a short one. 🫶

💜 DESCRIPTION 💜

Returns 0 on success, else an error. That's genuinely all it says — short, sweet, and honestly kind of mysterious 😭. So: success → 0. Not success → an error. Periodt. ⭐

🔥 SEE ALSO 🔥

Kernel file ./drivers/infiniband/sw/rxe/rxe_mcast.c, plus the whole multicast squad — and yes, I'm listing every single one because they all matter:

Twenty-ish friends and every one of them ate, fr fr 🌈

Heads up bestie: the underscore-prefixed ones are the internal crew (iykyk), the others are the public-facing icons. Go read them if you want the full lore. 👀

And that's the page, babes! 🌸 This one lives under ./drivers/infiniband/sw/rxe and it's dated October 2026 — so yeah, future-dated, iconic behavior honestly. Stay hydrated, go add some multicast addresses, and remember: 0 means slay, anything else means check the error 💀💖✨

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