ib_modify_qp_is_ok(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ib_modify_qp_is_ok(9) — the vibe check for your QP attributes ✨

okay so bestie, you're in the Kernel API Manual and today's main character is ib_modify_qp_is_ok. Buckle up 🎀

🌸 NAME 🌸

ib_modify_qp_is_ok — Check that the supplied attribute mask contains all required attributes and no attributes not allowed for the given QP state transition.

like, it's literally the bouncer at the club door for your attribute mask 💅

✨ SYNOPSIS ✨

bool ib_modify_qp_is_ok (enum ib_qp_state cur_state , enum ib_qp_state
next_state , enum ib_qp_type type , enum ib_qp_attr_mask mask );

🦋 ARGUMENTS 🦋

  • cur_state — Current QP state
  • next_state — Next QP state
  • type — QP type
  • mask — Mask of supplied QP attributes

💖 DESCRIPTION 💖

So this function is a helper function that a low-level driver's modify_qp method can use to validate the consumer's input. It's giving "personal assistant who checks your outfit before you leave the house" 🫶

It checks, in order:

  • that cur_state and next_state are valid QP states
  • that a transition from cur_state to next_state is allowed by the IB spec
  • that the attribute mask supplied is allowed for the transition

no cap, that's the whole job. and it slays at it 🔥

🌈 SEE ALSO 🌈

the whole friend group, fr fr:

okay that's literally everyone 💀

and that's the whole page bestie — go forth and validate those attribute masks 💖 this cutie came out of ./include/rdma, dated October 2026, and the header up top was ib_modify_qp_is_ok(9) from the Kernel API Manual. slay 🌟

📦 where this page comes from