idpf_vport_intr_dis_dim_all(9)

💖 idpf_vport_intr_dis_dim_all(9) — bestie edition 💖

okay so, welcome to the Kernel API Manual entry for idpf_vport_intr_dis_dim_all(9) — yes the name is a mouthful, yes I say it in one breath, and yes it's lowkey iconic. grab a snack 🍓, this one is short and sweet but she's important.

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✨ NAME ✨

idpf_vport_intr_dis_dim_all — Disable DIM work for all q_vectors 🎀

like, all of them. no stragglers. periodt.

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🌸 SYNOPSIS 🌸

void idpf_vport_intr_dis_dim_all (struct idpf_q_vec_rsrc *rsrc );

she takes one argument, returns void, and minds her own business 💅

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🦋 ARGUMENTS 🦋

• rsrc — pointer to queue and vector resources. that's the whole vibe check here, she just needs to know where the q_vectors live ✨

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🔥 DESCRIPTION 🔥

okay so here's the lore, and honestly it's giving "cleanup crew has to be thorough" 😭

The DIM works are embedded in the q_vector array that idpf_vport_intr_rel frees, and the poll arms them after napi_complete_done has already cleared NAPI_STATE_SCHED.

read that again bestie, because it matters: the works live inside stuff that gets freed, and the poll can arm them at a moment when things are already deep into teardown. messy.

so the move is — Disable rather than just cancel, so that a poll tail still running past napi_disable cannot queue them again behind the drain. not cancel, disable. that distinction is the whole main character energy of this function 👑

ngl the difference between "cancel" and "disable" here is exactly the kind of tiny detail that saves you from a very bad day 💀

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🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/intel/idpf/idpf_txrx.c — go read the source, iykyk 🫶

and now the friend group, and bestie it is a large friend group, buckle up:

idpf_chk_linearize(9), idpf_tx_timeout(9), idpf_tx_buf_rel_all(9), idpf_tx_desc_rel(9), idpf_compl_desc_rel(9), idpf_tx_desc_rel_all(9), idpf_tx_buf_alloc_all(9), idpf_tx_desc_alloc(9), idpf_compl_desc_alloc(9), idpf_tx_desc_alloc_all(9), idpf_rx_page_rel(9), idpf_rx_hdr_buf_rel_all(9), idpf_rx_buf_rel_bufq(9), idpf_rx_buf_rel_all(9), idpf_rx_desc_rel(9), idpf_rx_desc_rel_bufq(9), idpf_rx_desc_rel_all(9), idpf_rx_buf_hw_update(9), idpf_rx_hdr_buf_alloc_all(9), idpf_post_buf_refill(9), idpf_rx_post_buf_desc(9), idpf_rx_post_init_bufs(9), idpf_rx_buf_alloc_singleq(9), idpf_rx_bufs_init_singleq(9), idpf_rx_buf_alloc_all(9), idpf_rx_bufs_init(9), idpf_rx_bufs_init_all(9), idpf_rx_desc_alloc(9), idpf_bufq_desc_alloc(9), idpf_rx_desc_alloc_all(9), idpf_vector_to_queue_set(9), idpf_qp_switch(9), idpf_txq_group_rel(9), idpf_rxq_sw_queue_rel(9), idpf_rxq_group_rel(9), idpf_vport_queue_grp_rel_all(9), idpf_vport_queues_rel(9), idpf_vport_init_fast_path_txqs(9), idpf_vport_init_num_qs(9), idpf_vport_calc_num_q_desc(9), idpf_vport_calc_total_qs(9), idpf_vport_calc_num_q_groups(9), idpf_vport_calc_numq_per_grp(9), idpf_rxq_set_descids(9), idpf_txq_group_alloc(9), idpf_rxq_group_alloc(9), idpf_vport_queue_grp_alloc_all(9), idpf_vport_queues_alloc(9)

still going, don't scroll away on me 💀

idpf_tx_read_tstamp(9), idpf_tx_splitq_clean(9), idpf_tx_clean_bufs(9), idpf_tx_handle_rs_completion(9), idpf_tx_clean_complq(9), idpf_wait_for_sw_marker_completion(9), idpf_tx_splitq_build_ctb(9), idpf_tx_splitq_build_flow_desc(9), idpf_txq_has_room(9), idpf_tx_maybe_stop_splitq(9), idpf_tx_buf_hw_update(9), idpf_tx_res_count_required(9), idpf_tx_splitq_bump_ntu(9), idpf_tx_get_free_buf_id(9), idpf_tx_splitq_pkt_err_unmap(9), idpf_tx_splitq_map(9), idpf_tso(9), idpf_tx_splitq_get_ctx_desc(9), idpf_tx_drop_skb(9), idpf_tx_tstamp(9), idpf_tx_set_tstamp_desc(9), idpf_tx_splitq_need_re(9), idpf_tx_splitq_frame(9), idpf_tx_start(9), idpf_rx_hash(9), idpf_rx_csum(9), idpf_rx_splitq_extract_csum_bits(9), idpf_rx_rsc(9), idpf_rx_hwtstamp(9), __idpf_rx_process_skb_fields(9), idpf_rx_hsplit_wa(9), idpf_rx_splitq_test_staterr(9), idpf_rx_splitq_is_eop(9), idpf_rx_splitq_clean(9), idpf_rx_update_bufq_desc(9), idpf_rx_clean_refillq(9), idpf_rx_clean_refillq_all(9)

and the interrupt girlies, our actual neighbors, hi besties 🫶

idpf_vport_intr_clean_queues(9), idpf_vport_intr_napi_del_all(9), idpf_vport_intr_napi_dis_all(9), idpf_vport_intr_rel(9), idpf_vport_intr_rel_irq(9), idpf_vport_intr_dis_irq_all(9), idpf_vport_intr_buildreg_itr(9), idpf_update_dim_sample(9), idpf_net_dim(9), idpf_vport_intr_update_itr_ena_irq(9), idpf_vport_intr_req_irq(9), idpf_vport_intr_write_itr(9), idpf_vport_intr_ena_irq_all(9), idpf_vport_intr_deinit(9), idpf_tx_dim_work(9), idpf_rx_dim_work(9), idpf_init_dim(9), idpf_vport_intr_napi_ena_all(9), idpf_tx_splitq_clean_all(9), idpf_rx_splitq_clean_all(9), idpf_vport_splitq_napi_poll(9), idpf_vport_intr_map_vector_to_qs(9), idpf_vport_intr_init_vec_idx(9), idpf_vport_intr_napi_add_all(9), idpf_vport_intr_alloc(9), idpf_vport_intr_init(9)

and the rss crew closing us out, absolute legends 🌟

idpf_config_rss(9), idpf_fill_dflt_rss_lut(9), idpf_init_rss_lut(9), idpf_deinit_rss_lut(9)

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that's the whole page, no cap 💜

🎀 little sign-off from the source: ./drivers/net/ethernet/intel/idpf, dated October 2026. go off, queen, thanks for the docs 🫶✨