STRUCT IDPF_Q_VECTOR(9)

🌸 NAME 🌸

okay bestie, welcome to the struct idpf_q_vector(9) page in the Kernel API Manual 💖 the NAME line is literally just the struct name with no extra description, and we are respecting that minimal queen energy. struct idpf_q_vector is the main character here, no cap.

✨ SYNOPSIS ✨

here's the whole struct, copied character for character, because we do not play games with literals:

       struct idpf_q_vector {
           __cacheline_group_begin_aligned(read_mostly);
           struct idpf_vport *vport;
           u16 num_rxq;
           u16 num_txq;
           u16 num_bufq;
           u16 num_complq;
           u16 num_xsksq;
           struct idpf_rx_queue **rx;
           struct idpf_tx_queue **tx;
           struct idpf_buf_queue **bufq;
           struct idpf_compl_queue **complq;
           struct idpf_tx_queue **xsksq;
           struct idpf_intr_reg intr_reg;
           __cacheline_group_end_aligned(read_mostly);
           __cacheline_group_begin_aligned(read_write);
           call_single_data_t csd;
           u16 total_events;
           bool wb_on_itr;
           struct napi_struct napi;
           struct dim tx_dim;
           u16 tx_itr_value;
           bool tx_intr_mode;
           u32 tx_itr_idx;
           struct dim rx_dim;
           u16 rx_itr_value;
           bool rx_intr_mode;
           u32 rx_itr_idx;
           __cacheline_group_end_aligned(read_write);
           __cacheline_group_begin_aligned(cold);
           u16 v_idx;
           __cacheline_group_end_aligned(cold);
       };

the way this struct is organized into read_mostly, read_write, and cold cacheline groups? iconic. all the fields are staying exactly as written 🫶

🦋 Members 🦋

every single member is getting its moment, because skipping any of them would be not the vibe:

• vport — Vport back pointer. literally the back pointer to the vport, slay.
• num_rxq — Number of RX queues.
• num_txq — Number of TX queues.
• num_bufq — Number of buffer queues.
• num_complq — number of completion queues (yes, lowercase "number" in the original; we keep the details 💅).
• num_xsksq — number of XSk send queues.
• rx — Array of RX queues to service. an array, bestie.
• tx — Array of TX queues to service.
• bufq — Array of buffer queues to service.
• complq — array of completion queues.
• xsksq — array of XSk send queues.
• intr_reg — See struct idpf_intr_reg. that's the whole description, and it's giving efficient.
• csd — XSk wakeup CSD. wakeup business, periodt.
• total_events — Number of interrupts processed.
• wb_on_itr — whether WB on ITR is enabled. a bool checking that exact thing.
• napi — napi handler. main character energy.
• tx_dim — Data for TX net_dim algorithm.
• tx_itr_value — TX interrupt throttling rate.
• tx_intr_mode — Dynamic ITR or not. that's literally the description.
• tx_itr_idx — TX ITR index.
• rx_dim — Data for RX net_dim algorithm.
• rx_itr_value — RX interrupt throttling rate.
• rx_intr_mode — Dynamic ITR or not. same energy, RX edition.
• rx_itr_idx — RX ITR index.
• v_idx — Vector index. the final field in the cold group, cute.

🎀 SEE ALSO 🎀

the kernel file is ./drivers/net/ethernet/intel/idpf/idpf_txrx.h — and here are all the references, exactly as the original lists them, because we are thorough besties:

• struct idpf_tx_offload_params(9)
• struct idpf_tx_splitq_params(9)
• enum idpf_queue_flags_t(9)
• struct idpf_vec_regs(9)
• struct idpf_intr_reg(9)
• struct idpf_rx_queue(9)
• struct idpf_tx_queue(9)
• struct idpf_buf_queue(9)
• struct idpf_compl_queue(9)
• struct idpf_sw_queue(9)
• struct idpf_rxq_set(9)
• struct idpf_bufq_set(9)
• struct idpf_rxq_group(9)
• struct idpf_txq_group(9)
• idpf_size_to_txd_count(9)
• idpf_tx_singleq_build_ctob(9)
• idpf_tx_splitq_build_desc(9)
• idpf_vport_intr_set_wb_on_itr(9)
• idpf_tx_splitq_get_free_bufs(9)

mwah 💋 this page is the struct idpf_q_vector(9) manual, sourced from ./drivers/net/ethernet/intel/idpf, dated October 2026 — bye bestie, go read those structs 🫶✨