dpaa2_io_service_enqueue_qd(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dpaa2_io_service_enqueue_qd(9) — the kernel API manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual, and it's literally about yeeting a frame into a QD. sit down, grab a boba, we're doing this 💖

✨ NAME ✨

dpaa2_io_service_enqueue_qd — enqueue a frame to a QD. that's it, that's the whole vibe 🦋

🌸 SYNOPSIS 🌸

int dpaa2_io_service_enqueue_qd (struct dpaa2_io *d , u32 qdid , u8 prio
, u16 qdbin , const struct dpaa2_fd *fd );

like, five things go in, and an int comes out ✨

🎀 ARGUMENTS 🎀

  • d — the given DPIO service. this is your main character right here 👑
  • qdid — the given queuing destination id. the u32 of destiny fr fr
  • prio — the given queuing priority. a lil u8 that decides who gets in first 💅
  • qdbin — the given queuing destination bin. u16, small but mighty 🍓
  • fd — the frame descriptor which is enqueued. this is the frame in question, the actual thing getting yeeted in there 📦

🦋 DESCRIPTION 🦋

so here's the tea ☕ — this function returns 0 for a successful enqueue. slay.

but it can also come back with:

  • -EBUSY — if the enqueue ring is not ready. it's giving "not right now bestie" 😭
  • -ENODEV — if there is no dpio service at all. like, nothing to enqueue to. tragic 💀

no cap, those are the only three outcomes listed here. the way that it's just vibes and error codes, iykyk 🌈

🧚 SEE ALSO 🧚

the source lives in this kernel file, bestie:

Kernel file ./drivers/soc/fsl/dpio/dpio-service.c

and the whole friend group (go say hi to all of them, okay? 🫶):

and that's the whole page, bestie. every flag, every argument, every error code, all present and accounted for. no details were harmed in the making of this rewrite 💜

kisses, this page came to you from ./drivers/soc/fsl/dpio, dated October 2026 — dpaa2_io_service_enqueue_qd(9), periodt 💅✨🌸

📦 where this page comes from