__update_ntt(9)

💅 __update_ntt(9) — Kernel API Manual, bestie edition 🎀

okay so first of all, this is a page from the Kernel API Manual (section 9, the kernel-functions girlies) and it's literally all about __update_ntt. yes we're in the bonding driver. yes it's about LACP. no you don't have to be scared. sit down, bestie, I got you 🫶

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✨ NAME ✨

__update_ntt — update a port's ntt variable from a received lacpdu

like, that's the whole gig. one tiny flag, one big vibe check. 💅

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🌸 SYNOPSIS 🌸

void __update_ntt (struct lacpdu *lacpdu , struct port *port );

returns nothing, changes something. classic. no cap.

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🦋 ARGUMENTS 🦋

• lacpdu — the lacpdu we've received. this is the incoming tea ☕, freshly delivered.
• port — the port we're looking at. the main character whose ntt we're about to maybe touch 🔥

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💖 DESCRIPTION 💖

So. The whole job here is updating the value of the ntt variable, using parameter values from a newly received lacpdu. That's it. That's the function. 🎀

Here's the lore: the parameter values for the partner carried in the received PDU get compared with the corresponding operational parameter values for the Actor. Think of it like a vibe check between what your partner says they are and what your actual live settings are. 👑

If one or more of the comparisons shows that the value(s) received in the PDU differ from the current operational values, then ntt is set to TRUE. Basically: something changed, so ntt gets to be true, slay. ✨

Otherwise — and this is important, bestie — ntt remains unchanged. Not set to false. Not reset. Just left alone to live its life. 🧚

literally nothing happens in the "no diff" case, and that's on purpose. don't go reading extra behaviour into it 🙈

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🌈 SEE ALSO 🌈

the whole friend group, fr fr — all of these live in the kernel file ./drivers/net/bonding/bond_3ad.c:

• __get_bond_by_port(9)
• __get_first_agg(9)
• __agg_has_partner(9)
• __disable_distributing_port(9)
• __enable_collecting_port(9)
• __disable_port(9)
• __enable_port(9)
• __port_move_to_attached_state(9)
• __port_is_collecting_distributing(9)
• __get_agg_selection_mode(9)
• __check_agg_selection_timer(9)
• __get_link_speed(9)
• __get_duplex(9)
• __ad_timer_to_ticks(9)
• __choose_matched(9)
• __record_pdu(9)
• __record_default(9)
• __update_selected(9)
• __update_default_selected(9)
• __agg_ports_are_ready(9)
• __set_agg_ports_ready(9)
• __get_agg_bandwidth(9)
• __get_active_agg(9)
• __update_lacpdu_from_port(9)
• ad_lacpdu_send(9)
• ad_marker_send(9)
• ad_mux_machine(9)
• ad_rx_machine(9)
• ad_churn_machine(9)
• ad_tx_machine(9)
• ad_periodic_machine(9)
• ad_port_selection_logic(9)
• ad_agg_selection_logic(9)
• ad_clear_agg(9)
• ad_initialize_agg(9)
• ad_initialize_port(9)
• ad_enable_collecting(9)
• ad_disable_distributing(9)
• ad_enable_collecting_distributing(9)
• ad_disable_collecting_distributing(9)
• ad_marker_info_received(9)
• ad_marker_response_received(9)
• bond_3ad_initiate_agg_selection(9)
• bond_3ad_initialize(9)
• bond_3ad_bind_slave(9)
• bond_3ad_unbind_slave(9)
• bond_3ad_update_ad_actor_settings(9)
• bond_agg_timer_advance(9)
• bond_3ad_state_machine_handler(9)
• bond_3ad_rx_indication(9)
• ad_update_actor_keys(9)
• bond_3ad_adapter_speed_duplex_changed(9)
• bond_3ad_handle_link_change(9)
• bond_3ad_set_carrier(9)
• __bond_3ad_get_active_agg_info(9)
• bond_3ad_update_lacp_rate(9)
• bond_3ad_update_lacp_active(9)

that's fifty-seven besties. I counted. we're not doing "etc." in this house 💀

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okay that's the page!! this one's brought to you by ./drivers/net/bonding, dated October 2026, and it's serving Kernel API Manual energy from the very first line. go update your ntt, icon. 🌸✨👑