ice_set_dflt_vsi(9)

✨ ice_set_dflt_vsi(9) — from the Kernel API Manual, bestie ✨

Okay so today's main character is ice_set_dflt_vsi(9), straight out of the Kernel API Manual 💅 and it is literally the function that says "hey, this VSI is the default one now."

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🌸 NAME 🌸

ice_set_dflt_vsi — set the default forwarding VSI. That's it, that's the whole vibe check 🎀

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🦋 SYNOPSIS 🦋

int ice_set_dflt_vsi (struct ice_vsi *vsi );

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💖 ARGUMENTS 💖

• vsi — the VSI that's getting set as the default forwarding VSI on the switch. Like, this one, right here, it's the chosen one, the VSI with main character energy 👑

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⭐ DESCRIPTION ⭐

So here's the tea 🍓 — if the VSI you passed in is already the default VSI and it's enabled too? Then the function just returns success and everybody goes home early. Slay, no work needed ✨

Otherwise, it goes ahead and tries to set the VSI you passed in as the switch's default VSI, and then it returns whatever the result of that was. Simple as that, ngl 🫶

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💅 SEE ALSO 💅

You want the whole friend group? Because the whole friend group is showing up 😭 and we are not leaving anyone out:

Kernel file ./drivers/net/ethernet/intel/ice/ice_lib.c

ice_vsi_type_str(9), ice_vsi_ctrl_all_rx_rings(9), ice_vsi_alloc_arrays(9), ice_vsi_set_num_desc(9), ice_vsi_set_num_qs(9), ice_get_free_slot(9), ice_vsi_delete_from_hw(9), ice_vsi_free_arrays(9), ice_vsi_free_stats(9), ice_vsi_alloc_ring_stats(9), ice_vsi_free(9), ice_msix_clean_ctrl_vsi(9), ice_msix_clean_rings(9), ice_vsi_alloc_stat_arrays(9), ice_vsi_alloc_def(9), ice_vsi_alloc(9), ice_alloc_fd_res(9), ice_vsi_get_qs(9), ice_vsi_put_qs(9), ice_is_safe_mode(9), ice_is_rdma_ena(9), ice_vsi_clean_rss_flow_fld(9), ice_rss_clean(9), ice_vsi_set_rss_params(9), ice_set_dflt_vsi_ctx(9), ice_vsi_setup_q_map(9), ice_set_fd_vsi_ctx(9), ice_set_rss_vsi_ctx(9), ice_vsi_is_vlan_pruning_ena(9), ice_vsi_init(9), ice_vsi_clear_rings(9), ice_vsi_alloc_rings(9), ice_vsi_manage_rss_lut(9), ice_vsi_cfg_crc_strip(9), ice_vsi_cfg_rss_lut_key(9), ice_vsi_set_vf_rss_flow_fld(9), ice_vsi_set_rss_flow_fld(9), ice_pf_state_is_nominal(9), ice_update_eth_stats(9), ice_write_qrxflxp_cntxt(9), ice_intrl_usec_to_reg(9), ice_write_intrl(9), __ice_write_itr(9), ice_write_itr(9), ice_set_q_vector_intrl(9), ice_vsi_cfg_msix(9), ice_vsi_start_all_rx_rings(9), ice_vsi_stop_all_rx_rings(9), ice_vsi_stop_tx_rings(9), ice_vsi_stop_lan_tx_rings(9), ice_vsi_stop_xdp_tx_rings(9), ice_vsi_is_rx_queue_active(9), ice_vsi_cfg_sw_lldp(9), ice_cfg_sw_rx_lldp(9), ice_set_agg_vsi(9), ice_vsi_cfg_def(9), ice_vsi_cfg(9), ice_vsi_decfg(9), ice_vsi_setup(9), ice_vsi_release_msix(9), ice_vsi_free_irq(9), ice_vsi_free_tx_rings(9), ice_vsi_free_rx_rings(9), ice_vsi_close(9), ice_ena_vsi(9), ice_dis_vsi(9), ice_vsi_set_napi_queues(9), ice_vsi_clear_napi_queues(9), ice_napi_add(9), ice_vsi_release(9), ice_vsi_rebuild_get_coalesce(9), ice_vsi_rebuild_set_coalesce(9), ice_vsi_realloc_stat_arrays(9), ice_vsi_rebuild(9), ice_is_reset_in_progress(9), ice_wait_for_reset(9), ice_vsi_update_q_map(9), ice_vsi_cfg_netdev_tc(9), ice_vsi_setup_q_map_mqprio(9), ice_vsi_cfg_tc(9), ice_update_tx_ring_stats(9), ice_update_rx_ring_stats(9), ice_fetch_tx_ring_stats(9), ice_fetch_rx_ring_stats(9), ice_is_dflt_vsi_in_use(9), ice_is_vsi_dflt_vsi(9), ice_clear_dflt_vsi(9), ice_get_link_speed_mbps(9), ice_get_link_speed_kbps(9), ice_set_min_bw_limit(9), ice_set_max_bw_limit(9), ice_set_link(9), ice_vsi_add_vlan_zero(9), ice_vsi_del_vlan_zero(9), ice_vsi_num_zero_vlans(9), ice_vsi_has_non_zero_vlans(9), ice_vsi_num_non_zero_vlans(9), ice_is_feature_supported(9), ice_set_feature_support(9), ice_clear_feature_support(9), ice_init_feature_support(9), ice_vsi_update_security(9), ice_vsi_ctx_set_antispoof(9), ice_vsi_ctx_clear_antispoof(9), ice_vsi_update_local_lb(9), ice_vsi_update_l2tsel(9)

Like I said — the whole group chat 🫶💜

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ngl bestie, one tiny thing to keep in mind: if the VSI is already the default and it's enabled, you get success back without anything changing. That's the only shortcut in here, and it's a free one ✨

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And that's the page, fr fr 🌈 source/version is ./drivers/net/ethernet/intel/ice and it's dated October 2026 — so mark your calendar, screenshot this, send it to the group chat, and remember: ice_set_dflt_vsi(9) said what it said 💅👑🎀