STRUCT IDPF_PTP_VPORT_TX_TSTAMP_CAPS(9)

💅 struct idpf_ptp_vport_tx_tstamp_caps(9) ✨

hiii bestie!! welcome to the Kernel API Manual 🎀 — this one's a struct page, not a command page, so grab a lil snack and let's get into it 🍓

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🌸 NAME 🌸

struct idpf_ptp_vport_tx_tstamp_caps — the Tx timestamp capabilities struct, and yes she's exactly as booked-and-blessed as her name suggests 👑

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✨ SYNOPSIS ✨

struct idpf_ptp_vport_tx_tstamp_caps {
    u32 vport_id;
    u16 num_entries;
    u16 tstamp_ns_lo_bit;
    spinlock_t latches_lock;
    spinlock_t status_lock;
    bool access:1;
    struct list_head latches_free;
    struct list_head latches_in_use;
    struct idpf_ptp_tx_tstamp_status tx_tstamp_status[];
};

literally the whole glow-up in one code block 💖

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🦋 Members 🦋

okay so every single field, in order, no skipping, no cap:

• vport_id — the vport id 🆔 like, which vport she's repping, iykyk.
• num_entries — the number of negotiated Tx timestamp entries 📊 that's how many slots got agreed on.
• tstamp_ns_lo_bit — first bit for the nanosecond part of the timestamp ⏱️ the starting bit, bestie, the literal beginning of the ns chunk.
• latches_lock — the lock to the lists of free/used timestamp indexes 🔒 protects both the free list and the in-use list, she's doing double duty, main character energy fr.
• status_lock — the lock to the status tracker 🔐 guards the status tracker, periodt.
• access — indicates an access to Tx timestamp 👀 lil 1-bit bool flag saying yes, there's an access happening.
• latches_free — the list of the free Tx timestamps latches 🎀 the available ones, chilling, unclaimed.
• latches_in_use — the list of the used Tx timestamps latches 🔥 the ones currently spoken for, no touchy.
• tx_tstamp_status — Tx tstamp status tracker 📡 the tracker keeping tabs on status, she's the one taking notes.

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🌈 SEE ALSO 🌈

all the siblings and neighbours, linked and loved 🫶 the kernel file lives at ./drivers/net/ethernet/intel/idpf/idpf_ptp.h, and the whole fam is:

• struct idpf_ptp_cmd(9)
• enum idpf_ptp_access(9)
• struct idpf_ptp_secondary_mbx(9)
• enum idpf_ptp_tx_tstamp_state(9)
• struct idpf_ptp_tx_tstamp_status(9)
• struct idpf_ptp_tx_tstamp(9)
• struct idpf_ptp(9)
• idpf_ptp_info_to_adapter(9)
• struct idpf_ptp_dev_timers(9)
• idpf_ptp_is_vport_tx_tstamp_ena(9)
• idpf_ptp_is_vport_rx_tstamp_ena(9)

go read them too, they're iconic in their own right 💜

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ok that's the whole page, every field and every reference accounted for — nothing dropped, nothing invented, we ate and left no crumbs 💅✨

later bestie!! this one came out of ./drivers/net/ethernet/intel/idpf, part of the Kernel API Manual, dated October 2026 — mwah, bye 💖🎀🦋