qbman_swp_dq...ext_mem_back(9)

bestie, welcome to qbman_swp_dq...ext_mem_back(9) from the Kernel API Manual ✨ — yes, the title is giving truncated main-character energy, and we're obsessed 💅

🌸 NAME 🌸

qbman_swp_dqrr_next_mem_back — get an valid DQRR entry 🎀

✨ SYNOPSIS ✨

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

🧡 ARGUMENTS 🧡

• s — the software portal object 🌀

💖 DESCRIPTION 💖

Okay so here's the vibe: if there are no unconsumed DQRR entries, this returns NULL. That's it, that's the边界 — no entry for you, bestie 😭

It returns a DQRR entry only once, so repeated calls can return a sequence of DQRR entries, without requiring they be consumed immediately or in any particular order. Literally so chill about timing 🦋

🔥 SEE ALSO 🔥

The whole squad is here, no cap 👑

• 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_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_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)

source/version + date sign-off, bestie: ./drivers/soc/fsl/dpio, October 2026, qbman_swp_dq...ext_mem_back(9) — drink water and stan your kernel docs 🫶💖