qbman_swp_enqueue_direct(9)

💅 NAME 💅

okay so bestie, you're on the qbman_swp_enqueue_direct(9) page in the Kernel API Manual, and the function is literally called qbman_swp_enqueue_direct. Its whole thing? Issue an enqueue command. slay.

✨ SYNOPSIS ✨

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

🎀 ARGUMENTS 🎀

• s — the software portal used for enqueue. It's the portal you're using to do the enqueue, periodt.
• d — the enqueue descriptor. This is the descriptor that tells the enqueue what's up.
• fd — the frame descriptor to be enqueued. This is the frame descriptor getting sent into the enqueue moment.

🌸 DESCRIPTION 🌸

okay so huge heads-up, bestie: fd should only be NULL if the "action" of the descriptor is "orp_hole" or "orp_nesn". Like, those are the only two situations where a NULL fd is allowed. no cap.

For the return vibe: 0 means successful enqueue, and -EBUSY means the EQCR is not ready. That's the whole status report. 💅

🦋 SEE ALSO 🦋

For more qbman lore, peep the kernel file ./drivers/soc/fsl/dpio/qbman-portal.c and all these function besties:

• 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_mem_back(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)

xoxo, your source/version is ./drivers/soc/fsl/dpio, the date is October 2026, and this iconic page is qbman_swp_enqueue_direct(9). bye bestie 💖✨