dpaa2_io_down(9)

💅 dpaa2_io_down — it's giving "cleanup era" ✨

okay so real quick, bestie: this is a page from the Kernel API Manual (section 9, the kernel-API girlies), and it's all about dpaa2_io_down. yes it's a mouthful. yes you'll be saying it in your sleep. let's go 🎀

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✨ NAME ✨

dpaa2_io_down — release the dpaa2_io object. that's it. that's the job. you got a handle, you give it back. closure, but make it kernel 🦋

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🌸 SYNOPSIS 🌸

void dpaa2_io_down (struct dpaa2_io *d );

literally one argument, returns void, no drama, no return value to worry about. iconic behavior honestly 💅

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🫶 ARGUMENTS 🫶

• d — the dpaa2_io object to be released. yes, just d. lowercase. one letter. she's lowkey the whole point of the function. hand her over and she gets released 💖

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👑 DESCRIPTION 👑

okay so here's the lore, and it's actually important, so listen up 🧚

the struct dpaa2_io type can represent two different things:

• an individual DPIO object — as described by struct dpaa2_io_desc, i.e. the solo main character energy version
• an instance of a "DPIO service" — which can be used to group/encapsulate multiple DPIO objects, i.e. the group-chat version where everyone's bundled together 🌈

and in all cases — both of those vibes, no exceptions — each handle you obtained should be released using this function. every single one. no leaving handles lying around, bestie, that's not the move 😭

fr fr: if you got a handle, dpaa2_io_down is how it goes back. all cases. periodt.

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🔥 SEE ALSO 🔥

the squad, in order, exactly as listed:

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

dpaa2_io_service_select(9), dpaa2_io_create(9), dpaa2_io_irq(9), dpaa2_io_get_cpu(9), dpaa2_io_service_register(9), dpaa2_io_service_deregister(9), dpaa2_io_service_rearm(9), dpaa2_io_service_pull_fq(9), dpaa2_io_service_pull_channel(9), dpaa2_io_service_enqueue_fq(9), dpaa2_io_service_enqueue_multiple_fq(9), dpaa2_io_service_enqueue_multiple_desc_fq(9), dpaa2_io_service_enqueue_qd(9), dpaa2_io_service_release(9), dpaa2_io_service_acquire(9), dpaa2_io_store_create(9), dpaa2_io_store_destroy(9), dpaa2_io_store_next(9), dpaa2_io_query_fq_count(9), dpaa2_io_query_bp_count(9), dpaa2_io_set_irq_coalescing(9), dpaa2_io_get_irq_coalescing(9), dpaa2_io_set_adaptive_coalescing(9), dpaa2_io_get_adaptive_coalescing(9), dpaa2_io_update_net_dim(9)

like. that's a whole friend group. go read them too 🫶

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and that's the page!! mwah 💋 this lil number lives over in ./drivers/soc/fsl/dpio and it's dated October 2026 — so yeah, future girlie behavior, we love to see it ⭐ bye bestie, go release your handles responsibly 🌸💜