STRUCT IDPF_TX_SPLITQ_PARAMS(9)

💅 struct idpf_tx_splitq_params(9)

okay bestie, welcome to the Kernel API Manual ✨ — yes we're reading kernel headers for fun now, this is who we are, and honestly? iconic behaviour. Today's main character is a lil struct called struct idpf_tx_splitq_params, and she's the one holding all the split-queue Tx parameters together. no cap. 🫶

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🌸 NAME

struct idpf_tx_splitq_params — literally just the struct itself, no long fancy tagline, she lets the fields speak for her 💅

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✨ SYNOPSIS

struct idpf_tx_splitq_params {
    enum idpf_tx_desc_dtype_value dtype;
    u16 eop_cmd;
    union {
      u16 compl_tag;
      u16 td_tag;
    };
    struct idpf_tx_offload_params offload;
    u16 prev_ntu;
    u16 prev_refill_ntc;
    bool prev_refill_gen;
 };

look at her. so structured. so put together. 🎀

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🦋 Members

• dtype — the general descriptor info, aka the vibe check for what kind of descriptor we're dealing with 💫
• eop_cmd — the type of EOP (End Of Packet, iykyk) 👑
• {unnamed_union} — an anonymous union, no name, no label, she's mysterious like that 🙈
  • compl_tag — the associated tag for completion. tracking her girlies fr fr 🏷️
  • td_tag — the descriptor tunneling tag 🌀
• offload — the offload parameters, type struct idpf_tx_offload_params, doing all the heavy lifting so you don't have to 💪
• prev_ntu — stored TxQ next_to_use, kept around in case of rollback (so you can rewind, no shame in it 😭)
• prev_refill_ntc — stored refillq next_to_clean, also for the in-case-of-packet-rollback scenario 💀
• prev_refill_gen — the stored refillq generation bit, again for packet rollback. yes ma'am, all three of those are the emergency-undo squad 🚨

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🔥 SEE ALSO

Kernel file ./drivers/net/ethernet/intel/idpf/idpf_txrx.h, plus the whole friend group she rolls with:

• struct idpf_tx_offload_params(9)
• enum idpf_queue_flags_t(9)
• struct idpf_vec_regs(9)
• struct idpf_intr_reg(9)
• struct idpf_q_vector(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)

like a whole group chat of structs and functions, and every single one of them is in the README 💖

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ok real talk: this is upstream kernel documentation for the idpf driver, so if you're poking at these fields in actual drivers/net/ethernet/intel/idpf code, read them carefully — the rollback fields exist for a reason and the kernel does not do vibes-based error handling 🫡

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and that's the page, bestie! 🌈 this little beauty lives in ./drivers/net/ethernet/intel/idpf, dated October 2026 — mark your calendars 🎀 — and she answers to the very chic name struct idpf_...plitq_params(9) 💜✨