ice_dcb_ena_dis_vsi(9)

💖 ice_dcb_ena_dis_vsi(9) — the Kernel API Manual glow-up 🎀

okay so bestie, welcome to the Kernel API Manual entry for ice_dcb_ena_dis_vsi(9) — yes the whole thing lives in section 9 and yes it's a helper function and yes it's lowkey iconic for what it does. buckle up 🦋

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✨ NAME ✨

ice_dcb_ena_dis_vsi — disables certain VSIs for DCB config/reconfig, and (spoiler) brings 'em right back up 💅

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🌸 SYNOPSIS 🌸

void ice_dcb_ena_dis_vsi (struct ice_pf *pf , bool ena , bool locked );

it returns void, bestie. it gives nothing back because it's too busy doing the work 💀

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🫶 ARGUMENTS 🫶

• pf — pointer to the PF instance. like, the whole personality of the operation lives here ✨
• ena — true to enable VSIs, false to disable. yes it's literally just the on/off switch of your dreams 🎀
• locked — true if the caller holds the RTNL lock, false otherwise. know your locking status before you walk in, iykyk 🔥

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🧚 DESCRIPTION 🧚

so here's the vibe check: before a new DCB configuration can be applied, VSIs of type PF, SWITCHDEV and CHNL need to be brought down. like, they gotta sit down and chill for a sec 🌈

then, following completion of DCB configuration, the VSIs that were downed need to be brought up again. no cap, they get resurrected 🔥

and this helper function? it does both. one function, two jobs, main character energy fr fr 👑

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/intel/ice/ice_dcb_lib.c — the mothership 🛸
• ice_dcb_get_ena_tc(9)
• ice_is_pfc_causing_hung_q(9)
• ice_dcb_get_mode(9)
• ice_dcb_get_num_tc(9)
• ice_get_first_droptc(9)
• ice_vsi_set_dcb_tc_cfg(9)
• ice_dcb_get_tc(9)
• ice_vsi_cfg_dcb_rings(9)
• ice_dcb_bwchk(9)
• ice_pf_dcb_cfg(9)
• ice_cfg_etsrec_defaults(9)
• ice_dcb_need_recfg(9)
• ice_dcb_rebuild(9)
• ice_dcb_init_cfg(9)
• ice_dcb_sw_dflt_cfg(9)
• ice_dcb_tc_contig(9)
• ice_dcb_noncontig_cfg(9)
• ice_pf_dcb_recfg(9)
• ice_init_pf_dcb(9)
• ice_update_dcb_stats(9)
• ice_tx_prepare_vlan_flags_dcb(9)
• ice_setup_dcb_qos_info(9)
• ice_dcb_is_mib_change_pending(9)
• ice_dcb_process_lldp_set_mib_change(9)

like, that's the whole friend group right there 😭 obsessed 🫶

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and that's the page!! mwah 💋 this beauty ships from ./drivers/net/ethernet/intel/ice, dated October 2026, and it's filed under ice_dcb_ena_dis_vsi(9) — go forth and configure your DCB, bestie, you've got this 🍓💖✨