sdma_select_engine_sc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdma_select_engine_sc — like, the whole vibe

okay so first things first, bestie: this page lives in the Kernel API Manual (section 9, the kernel-API girlies), and it's about sdma_select_engine_sc — literally just picking an sdma engine. that's the whole gig. let's get into it 🎀

✨ NAME ✨

sdma_select_engine_sc — select sdma engine 🦋

like yes, that's it, that's the name, she's straightforward and we respect that.

🌸 SYNOPSIS 🌸

struct sdma_engine * sdma_select_engine_sc (struct hfi1_devdata *dd ,
u32 selector , u8 sc5 );

so you hand her three things and she hands you back a struct sdma_engine *. slay. reciprocal energy fr fr 🫶

🧚 ARGUMENTS 🧚

  • dd — devdata. that's the devdata, babe, she needs it.
  • selector — a spreading factor. lowkey the whole point of the function, keep reading 👀
  • sc5 — the 5 bit sc. five bits of sc. exactly five. not four, not six. iconic.

👑 DESCRIPTION 👑

okay so the entire plot of this function: it returns an engine based on the selector and an sc. that's the tea, that's the whole tea, no cap. selector + sc goes in, engine comes out. main character behaviour honestly 💅✨

🔥 SEE ALSO 🔥

the friend group!!! 🫶 and yes the kernel file too, she's part of the group chat:

Kernel file ./drivers/infiniband/hw/hfi1/sdma.c — plus:

twenty of them. twenty!! she's popular, what can I say 💀💖

ngl bestie, every single one of those is worth a look, the sdma_select_engine_vl(9) girlie especially. go read her next, iykyk 🌈

and that's a wrap on this little page!! she's served to you straight from ./drivers/infiniband/hw/hfi1, version October 2026, titled sdma_select_engine_sc(9) — mwah, 10/10, no notes, periodt 🍓💜🎀

📦 where this page comes from