dpaa2_io_store_next(9)

💅 dpaa2_io_store_next(9) — Kernel API Manual ✨

🌸 NAME

okay so bestie, dpaa2_io_store_next — determine when the next dequeue result is available. 💖

✨ SYNOPSIS

struct dpaa2_dq * dpaa2_io_store_next (struct dpaa2_io_store *s , int *is_last );

🎀 ARGUMENTS

• s — the dpaa2_io_store object.
• is_last — indicate whether this is the last frame in the pull command.

🦋 DESCRIPTION

When an object driver performs dequeues to a dpaa2_io_store, this function can be used to determine when the next frame result is available. Once this function returns non-NULL, a subsequent call to it will try to find the next dequeue result. 👑

🚨 note note note: if a pull-dequeue has a NULL result because the target FQ/channel was empty, then this function will also return NULL — rather than expecting the caller to always check for this. So "is_last" can be used to differentiate between "end-of-empty-dequeue" and "still-waiting". 💅

Return dequeue result for a valid dequeue result, or NULL for empty dequeue. periodt. 💖

💖 SEE ALSO

Kernel file ./drivers/soc/fsl/dpio/dpio-service.c — and the whole squad:

• dpaa2_io_service_select(9)
• dpaa2_io_create(9)
• dpaa2_io_down(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_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)

dpaa2_io_store_next(9) is signing off from source/version ./drivers/soc/fsl/dpio, dated October 2026 — mwah, slay, bye bestie. 💋💖