irdma_sc_mr_fast_register(9)

📦 version 7.3.1, in nixpkgs unstable

💅 irdma_sc_mr_fast_register(9) — like, the whole glow-up ✨

okay so bestie, welcome to the Kernel API Manual entry for irdma_sc_mr_fast_register(9) 🎀 no cap, this is the one that posts an RDMA fast register mr WR over to an iwarp qp. that's the entire vibe. it's giving "one function, very specific job, absolutely slays at it" 💅

🌸 NAME 🌸

irdma_sc_mr_fast_register — posts the RDMA fast register mr WR to the iwarp qp 🦋

like literally that's what it does. it takes that fast-register work request and yeets it at the iwarp queue pair. iconic behavior honestly.

✨ SYNOPSIS ✨

int irdma_sc_mr_fast_register (struct irdma_sc_qp *qp , struct
       irdma_fast_reg_stag_info *info , bool post_sq );

so it returns an int, and it wants three things from you: a struct irdma_sc_qp * named qp, a struct irdma_fast_reg_stag_info * named info, and a bool named post_sq. that's the whole roster 🫶

🎀 ARGUMENTS 🎀

  • qp — the sc qp struct 💖 lowkey the main character here, it's the queue pair everything gets posted to.
  • info — the fast mr info 🧚 this is where all your fast-register details live. the little info packet, if you will.
  • post_sq — flag for cqp db to ring ⭐ it's a bool, it's a flag, and it controls the cqp db ringing situation. respect it.

🦋 SEE ALSO 🦋

okay this is the part where the manpage absolutely pops off — the SEE ALSO list is huge, like it's giving "I know everyone at this party" energy 👑

first up, the literal source file, because yes:

  • Kernel file ./drivers/infiniband/hw/irdma/ctrl.c

and now the extended friend group, no one left out, fr fr:

like, that's the whole extended universe right there 😭 every single one accounted for, periodt 💜

quick vibe check bestie: the manpage genuinely has no DESCRIPTION section, no RETURN VALUE, no ERRORS — so there's literally nothing else to tell you, and I'm not about to invent lore that isn't in the source 🙈 what you see is what you get, and what you get is the NAME, the SYNOPSIS, the ARGUMENTS, and that absolutely stunning SEE ALSO list 🌈

and that's the tea ✨ this page lives in ./drivers/infiniband/hw/irdma, it's dated October 2026, and it proudly answers to the name irdma_sc_mr_fast_register(9) — go forth and register those mrs fast, bestie 🍓💅🫶

📦 where this page comes from