idpf_tx_res_count_required(9)

💖 idpf_tx_res_count_required(9) 💖

okay so bestie, welcome to the Kernel API Manual page for idpf_tx_res_count_required — yes that's a whole mouthful, iykyk, but it's literally just one lil function and she's serving math 🌈

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🌸 NAME 🌸

idpf_tx_res_count_required — get number of Tx resources needed for this pkt ✨

like… how many Tx resources does this pkt need? that's the whole vibe. that's the gig. 🎀

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🦋 SYNOPSIS 🦋

unsigned int idpf_tx_res_count_required (struct idpf_tx_queue *txq ,
struct sk_buff *skb , u32 *bufs_needed );

no cap, that's the whole signature, copy it exactly bestie 💅

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💜 ARGUMENTS 💜

• txq — the queue to send buffer on 👑 this is where the packet's headed
• skb — the send buffer itself, the actual pkt in question 🍓
• bufs_needed — (output) number of buffers needed for this skb. note the (output) bestie, this one gets written into, so pass her somewhere real 🙈

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⭐ RETURN ⭐

returns the number of data descriptors and buffers needed for this skb ✨ — like, two counts' worth of info, one return value, iconic behavior honestly 💅

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🧚 SEE ALSO 🧚

first up, the source vibe check: Kernel file ./drivers/net/ethernet/intel/idpf/idpf_txrx.c 📁 (yes, that's where she lives, go look, i'll wait 🫶)

and now, the friend group, and bestie there are so many of them, no cap, here's every single one, not skipping a single one 😭:

• 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_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), 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)

see? every single one. told you. 💀 (and yeah, they're all (9) sections, in case your eyes glazed over 🍓)

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ok that's the whole page bestie, it's short and sweet and she ate ✨ go count those Tx resources, ily 🫶

and for the cute sign-off: this one comes from ./drivers/net/ethernet/intel/idpf, dated October 2026, and it's the idpf_tx_res_count_required(9) page of the Kernel API Manual — periodt 💅🎀