ice_aq_start_stop_dcbx(9)

💅 ice_aq_start_stop_dcbx(9) 💅

okay bestie, welcome to the Kernel API Manual — this one's about ice_aq_start_stop_dcbx, and it's literally the on/off switch for the DCBX service in FW. no cap. let's get into it 🎀

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✨ NAME ✨

ice_aq_start_stop_dcbx — Start/Stop DCBX service in FW 🔥

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🦋 SYNOPSIS 🦋

int ice_aq_start_stop_dcbx (struct ice_hw *hw , bool start_dcbx_agent ,
       bool *dcbx_agent_status , struct ice_sq_cd *cd );

like, that's the whole signature. four things go in, an int comes out. main character energy fr fr 👑

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🌸 ARGUMENTS 🌸

• hw — pointer to the HW struct. the hardware baddie herself 💖
• start_dcbx_agent — True if the DCBX Agent needs to be started, False if the DCBX Agent needs to be stopped. yes it's doing double duty, she's versatile like that 💅
• dcbx_agent_status — FW indicates back the DCBX agent status here: True if the DCBX Agent is active, False if the DCBX Agent is stopped. it's giving "receipts" 🧾✨
• cd — pointer to command details structure, or NULL. literally optional, we love a flexible king 🫶

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🌈 DESCRIPTION 🌈

Start/Stop the embedded dcbx Agent. simple as that, iconically so.

⚠️ okay so this part matters, don't skip it bestie: in case this wrapper function returns 0, the caller will need to check if FW returns back the same value as stated in dcbx_agent_status, and react accordingly. so 0 is not "we're done", 0 is "go look at dcbx_agent_status and then react". no cap, read it twice. 😭

and the command code is (0x0A09) — that's the magic number, iykyk 🔢

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🎀 SEE ALSO 🎀

Kernel file ./drivers/net/ethernet/intel/ice/ice_dcb.c — go read the source, she's right there 💜

and the whole friend group, in this exact order:

• ice_aq_get_lldp_mib(9), ice_aq_cfg_lldp_mib_change(9)
• ice_aq_stop_lldp(9), ice_aq_start_lldp(9), ice_get_dcbx_status(9)
• ice_parse_ieee_ets_common_tlv(9), ice_parse_ieee_etscfg_tlv(9), ice_parse_ieee_etsrec_tlv(9), ice_parse_ieee_pfccfg_tlv(9), ice_parse_ieee_app_tlv(9), ice_parse_ieee_tlv(9)
• ice_parse_cee_pgcfg_tlv(9), ice_parse_cee_pfccfg_tlv(9), ice_parse_cee_app_tlv(9), ice_parse_cee_tlv(9), ice_parse_org_tlv(9)
• ice_lldp_to_dcb_cfg(9), ice_aq_get_dcb_cfg(9), ice_aq_get_cee_dcb_cfg(9), ice_aq_set_pfc_mode(9)
• ice_cee_to_dcb_cfg(9), ice_get_ieee_or_cee_dcb_cfg(9), ice_get_dcb_cfg(9), ice_get_dcb_cfg_from_mib_change(9), ice_init_dcb(9)
• ice_cfg_lldp_mib_change(9), ice_add_ieee_ets_common_tlv(9), ice_add_ieee_ets_tlv(9), ice_add_ieee_etsrec_tlv(9)
• ice_add_ieee_pfc_tlv(9), ice_add_ieee_app_pri_tlv(9), ice_add_dscp_up_tlv(9), ice_add_dscp_enf_tlv(9)
• ice_add_dscp_tc_bw_tlv(9), ice_add_dscp_pfc_tlv(9), ice_add_dcb_tlv(9)
• ice_dcb_cfg_to_lldp(9), ice_set_dcb_cfg(9), ice_aq_query_port_ets(9), ice_update_port_tc_tree_cfg(9), ice_query_port_ets(9)

like, that's the entire squad. every single one. obsessed 💖

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and that's the page, bestie 🫶 sourced straight from ./drivers/net/ethernet/intel/ice, dated October 2026, and it's ice_aq_start_stop_dcbx(9) all the way down. slay, go start (or stop) that DCBX agent. periodt. 💅✨