qbman_swp_dqrr_next(9)

📦 version 7.3.1, in nixpkgs unstable

💅 qbman_swp_dqrr_next — the "gimme the next one" girlie

okay so bestie, welcome to qbman_swp_dqrr_next, straight out of the Kernel API Manual (issue 9, we're fancy ✨). this is the little function that hands you your next DQRR entry and it's lowkey iconic for it.

✨ SYNOPSIS ✨

const struct dpaa2_dq * qbman_swp_dqrr_next (struct qbman_swp *s );

that's the whole signature. she's concise. she knows what she wants. 🎀

🌸 ARGUMENTS 🌸

  • s — the software portal object 🫶 (your main character, fr — everything flows through her)

🔥 DESCRIPTION 🔥

okay so here's the tea ☕:

she returns NULL if there are no unconsumed DQRR entries. none. zero. nada. the queue is giving empty. 💀

and the slay part? a DQRR entry gets returned only once. so if you keep calling her, you get a whole sequence of DQRR entries back — one at a time, no take-backs, no repeats. 👑

and the way she does it? you do not have to consume them immediately, and you do not have to consume them in any particular order. she's not gonna come for you about your timing. she's just gonna keep handing you entries as long as they're unconsumed. periodt. 💅✨

🦋 SEE ALSO 🦋

go read the kernel file ./drivers/soc/fsl/dpio/qbman-portal.h first, bestie — it's the mothership. then the whole friend group:

like, that's the whole group chat. say hi to all of them for me 😭💜

🧚 a lil sign-off 🧚

this page came out of ./drivers/soc/fsl/dpio, dated October 2026 💖 — so yes, she's got that future-fresh energy, and she'll see you back here next time you need qbman_swp_dqrr_next(9) again. byeeeee 🌈⭐💅

📦 where this page comes from