rvt_detach_mcast(9)

💅 rvt_detach_mcast(9) — the Kernel API Manual glow-up

Okay so bestie, welcome to the rvt_detach_mcast page 💖 — straight out of the Kernel API Manual, and honestly? It's giving "short but iconic." This is the function that removes a qp from a multicast group. That's the whole vibe. No cap.

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✨ NAME ✨

rvt_detach_mcast — remove a qp from a multicast group 🎀

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🌸 SYNOPSIS 🌸

int rvt_detach_mcast (struct ib_qp *ibqp , union ib_gid *gid , u16 lid );

Literally the whole signature, untouched, exactly as written. We do not edit the source in this house 🙈

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🦋 ARGUMENTS 🦋

• ibqp — an Infiniband qp 💫 (yes, that exact capitalization, I don't make the rules, the manpage does)
• gid — multicast guid
• lid — multicast lid

Three args, all main characters, all listed. Periodt.

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⭐ RETURN ⭐

0 on success 🎉 — that's it, that's the return value, and honestly a clean little 0 is such a slay.

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🌈 SEE ALSO 🌈

The kernel file lives right here, go look at it, it's iconic:

• Kernel file ./drivers/infiniband/sw/rdmavt/mcast.c
• rvt_driver_mcast_init(9)
• rvt_mcast_qp_alloc(9)
• rvt_mcast_alloc(9)
• rvt_mcast_find(9)
• rvt_attach_mcast(9)
• rvt_mcast_tree_empty(9)

That's the whole friend group 🫶 go read them, iykyk.

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fr fr though: this page is short, so don't go inventing extra behaviour in your head. Everything it promises is what's up there — qp out of the multicast group, 0 on success, and those seven see-alsos. 💀

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And that's the page, bestie 🧚‍♀️ signed off from ./drivers/infiniband/sw/rdmavt, dated October 2026, and yes it's still rvt_detach_mcast(9) — same queen, same name, just a cuter outfit 💜👑