hfi1_register_ib_device(9)

👑 hfi1_register_ib_device(9) — like, the Kernel API Manual era 💅

okay bestie, welcome to hfi1_register_ib_device(9), a section 9 kernel API manual page, and honestly? it's a short one but it's iconic for what it does. no cap. let's get into it 🎀

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✨ NAME ✨

hfi1_register_ib_device — register our device with the infiniband core 🦋

like the whole vibe of this function is "hi infiniband core, meet my device, please put us on the list", and it absolutely ate.

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🌸 SYNOPSIS 🌸

int hfi1_register_ib_device (struct hfi1_devdata *dd );

it returns an int, she's giving very much "i have opinions about whether this worked" energy, and we respect that 💖

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🎀 ARGUMENTS 🎀

• dd — the device data structure 💫 that's the whole thing, bestie. you hand her your device data structure and she goes and does the registration thing.

and the return value?? pay attention babes 👀 — return 0 if successful, errno if unsuccessful. that's literally it. 0 = slay, errno = not slay 😭

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🌈 SEE ALSO 🌈

the little kernel file that lives at ./drivers/infiniband/hw/hfi1/verbs.c (main character location fr fr) and the whole friend group:

• hfi1_ib_rcv(9)
• update_tx_opstats(9)
• egress_pkey_check(9)
• hfi1_verbs_send(9)
• hfi1_fill_device_attr(9)
• hfi1_get_npkeys(9)

go read those too, iykyk 📚✨

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🫶 the cute sign-off 🫶

this page lives under ./drivers/infiniband/hw/hfi1, it's dated October 2026 (yes, future girlie 💜), and it's page hfi1_register_ib_device(9) of your very own manual. periodt. 💅🌸