qbman_swp_enqueue_mem_back(9)

💖 NAME 💖

qbman_swp_enqueue_mem_back — literally the function that issues an enqueue command. That’s the whole vibe, bestie. 💅

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✨ SYNOPSIS ✨

int qbman_swp_enqueue_mem_back (struct qbman_swp *s , const struct
       qbman_eq_desc *d , const struct dpaa2_fd *fd );

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🎀 ARGUMENTS 🎀

• s — the software portal used for enqueue 🌀
• d — the enqueue descriptor ✨
• fd — the frame descriptor to be enqueued 🦋

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🌸 DESCRIPTION 🌸

okay so important tea ☕: fd should only be NULL if the "action" of the descriptor is "orp_hole" or "orp_nesn". Like, that is the only time. No cap.

bestie, do not get creative with NULL unless one of those two actions is in play 🙈

Return 0 for successful enqueue, -EBUSY if the EQCR is not ready. 💀

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👑 SEE ALSO 👑

Kernel file: ./drivers/soc/fsl/dpio/qbman-portal.c

• qbman_swp_init(9)
• qbman_swp_finish(9)
• qbman_swp_interrupt_read_status(9)
• qbman_swp_interrupt_clear_status(9)
• qbman_swp_interrupt_get_trigger(9)
• qbman_swp_interrupt_set_trigger(9)
• qbman_swp_interrupt_get_inhibit(9)
• qbman_swp_interrupt_set_inhibit(9)
• qbman_eq_desc_set_no_orp(9)
• qbman_eq_desc_set_fq(9)
• qbman_eq_desc_set_qd(9)
• qbman_swp_enqueue_direct(9)
• qbman_swp_enqueue_multiple_direct(9)
• qbman_swp_enqueue_multiple_mem_back(9)
• qbman_swp_enqueue_multiple_desc_direct(9)
• qbman_swp_enqueue_multiple_desc_mem_back(9)
• qbman_swp_push_get(9)
• qbman_swp_push_set(9)
• qbman_pull_desc_clear(9)
• qbman_pull_desc_set_storage(9)
• qbman_pull_desc_set_numframes(9)
• qbman_pull_desc_set_fq(9)
• qbman_pull_desc_set_wq(9)
• qbman_pull_desc_set_channel(9)
• qbman_swp_pull_direct(9)
• qbman_swp_pull_mem_back(9)
• qbman_swp_dqrr_next_direct(9)
• qbman_swp_dqrr_next_mem_back(9)
• qbman_swp_dqrr_consume(9)
• qbman_result_has_new_result(9)
• qbman_release_desc_clear(9)
• qbman_release_desc_set_bpid(9)
• qbman_release_desc_set_rcdi(9)
• qbman_swp_release_direct(9)
• qbman_swp_release_mem_back(9)
• qbman_swp_acquire(9)
• qbman_swp_set_irq_coalescing(9)
• qbman_swp_get_irq_coalescing(9)

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with love from ./drivers/soc/fsl/dpio 💌 — October 2026 — qbman_swp_enqueue_mem_back(9) 🫶