idpf_tx_spli...kt_err_unmap(9)

💅 NAME 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes it's the (9) kernel section, we're fancy like that. The function we're stanning today is idpf_tx_splitq_pkt_err_unmap (the header up top truncates it all dramatically as idpf_tx_spli...kt_err_unmap(9), no cap, it's giving "name too long for the page width" energy 😭) — and what does it do? It unmaps buffers and bumps the tail in case of error. That's the whole vibe. Cleanup era 🧹💖

✨ SYNOPSIS ✨

void idpf_tx_splitq_pkt_err_unmap (struct idpf_tx_queue *txq , struct
     idpf_tx_splitq_params *params , struct idpf_tx_buf *first );

it returns void, so like… no return value, she simply does her thing and leaves 💅

🎀 ARGUMENTS 🎀

• txq — the Tx queue you're unwinding 🌀 that's the thing getting tidied up.
• params — a pointer to the splitq params struct. she's just here for the info 🫶
• first — the starting buffer for the packet that needs to get unmapped. like, start here bestie, and take it from the top 🌸

🔥 SEE ALSO 🔥

Kernel file ./drivers/net/ethernet/intel/idpf/idpf_txrx.c — yeah, that's where she lives 🏠

okay this next part is a lot of links and I'm not skipping a single one, periodt 👑 — here's the whole friend group:

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

like I said. the whole group chat 🌈💀

and that's the page, bestie 🫶 this little icon came straight out of ./drivers/net/ethernet/intel/idpf in the Kernel API Manual, dated October 2026 — mwah, slay, go fix your error path 💖🎀🦋