i40e_fdir_ch...and_reenable(9)

💅 i40e_fdir_check_and_reenable(9)

okay so bestie, welcome to the section 9 kernel API manual — yes, the Kernel API Manual manual, section 9, we're in the deep end of the pool today and it's giving extremely niche and honestly kind of iconic. This page is all about i40e_fdir_check_and_reenable, and it's short, it's sweet, it's a whole mood. Let's get into it 🫶

🌸 NAME 🌸

i40e_fdir_check_and_reenable — the function you call to reenabe FD ATR or SB if they've been disabled.

not me pointing out that the source says "reenabe" and not "reenable" — that's their spelling, bestie, we do not edit the source around here. lowkey obsessed with the confidence tho 💅

✨ SYNOPSIS ✨

here's the whole signature, copy it exactly, don't get creative:

void i40e_fdir_check_and_reenable (struct i40e_pf *pf );

that's it. that's the whole thing. no return value, we're just out here reenabling things 🔥

🎀 ARGUMENTS 🎀

one argument, and she's a big one:

pf — board private structure. the whole board. private. structure. that's the vibe check and she passed ✅

🦋 SEE ALSO 🦋

first up, the actual source file, sitting right here in the kernel tree:

Kernel file ./drivers/net/ethernet/intel/i40e/i40e_main.c

and now, bestie, brace yourself — the cross-reference list is long. like, genuinely long. she ate and left no crumbs. every single one, coming at you, no cap and no skips:

i40e_hw_to_dev(9), i40e_allocate_dma_mem(9), i40e_free_dma_mem(9), i40e_allocate_virt_mem(9), i40e_free_virt_mem(9), i40e_get_lump(9), i40e_put_lump(9), i40e_find_vsi_from_id(9), i40e_service_event_schedule(9), i40e_tx_timeout(9), i40e_get_vsi_stats_struct(9), i40e_get_netdev_stats_struct_tx(9), i40e_get_netdev_stats_struct(9), i40e_vsi_reset_stats(9), i40e_pf_reset_stats(9), i40e_compute_pci_to_hw_id(9), i40e_stat_update64(9), i40e_stat_update48(9), i40e_stat_update32(9), i40e_stat_update_and_clear32(9), i40e_stats_update_rx_discards(9), i40e_update_eth_stats(9), i40e_update_veb_stats(9), i40e_update_vsi_stats(9), i40e_update_pf_stats(9), i40e_update_stats(9)

that was the stats girlies. now the filter girlies 💜

i40e_count_all_filters(9), i40e_count_active_filters(9), i40e_find_filter(9), i40e_find_mac(9), i40e_is_vsi_in_vlan(9), i40e_correct_mac_vlan_filters(9), i40e_get_vf_new_vlan(9), i40e_correct_vf_mac_vlan_filters(9), i40e_rm_default_mac_filter(9), i40e_add_filter(9), __i40e_del_filter(9), i40e_add_mac_filter(9), i40e_del_mac_filter(9), i40e_set_mac(9), i40e_config_rss_aq(9), i40e_vsi_config_rss(9), i40e_vsi_setup_queue_map_mqprio(9), i40e_vsi_setup_queue_map(9), i40e_addr_sync(9), i40e_addr_unsync(9), i40e_set_rx_mode(9), i40e_undo_del_filter_entries(9), i40e_undo_add_filter_entries(9), i40e_next_filter(9), i40e_update_filter_state(9), i40e_aqc_del_filters(9), i40e_aqc_add_filters(9), i40e_aqc_broadcast_filter(9), i40e_set_promiscuous(9), i40e_sync_vsi_filters(9), i40e_sync_filters_subtask(9)

then we roll straight into buffer sizes, MTU and every VLAN function to ever exist, slay 🌈

i40e_calculate_vsi_rx_buf_len(9), i40e_max_vsi_frame_size(9), i40e_change_mtu(9), i40e_vlan_stripping_enable(9), i40e_vlan_stripping_disable(9), i40e_add_vlan_all_mac(9), i40e_vsi_add_vlan(9), i40e_rm_vlan_all_mac(9), i40e_vsi_kill_vlan(9), i40e_vlan_rx_add_vid(9), i40e_vlan_rx_add_vid_up(9), i40e_vlan_rx_kill_vid(9), i40e_restore_vlan(9), i40e_vsi_add_pvid(9), i40e_vsi_remove_pvid(9), i40e_vsi_setup_tx_resources(9), i40e_vsi_free_tx_resources(9), i40e_vsi_setup_rx_resources(9), i40e_vsi_free_rx_resources(9), i40e_config_xps_tx_ring(9), i40e_xsk_pool(9), i40e_configure_tx_ring(9), i40e_rx_offset(9), i40e_configure_rx_ring(9), i40e_vsi_configure_tx(9), i40e_vsi_configure_rx(9), i40e_vsi_config_dcb_rings(9), i40e_set_vsi_rx_mode(9), i40e_reset_fdir_filter_cnt(9), i40e_fdir_filter_restore(9), i40e_vsi_configure(9), i40e_vsi_configure_msix(9), i40e_enable_misc_int_causes(9), i40e_configure_msi_and_legacy(9), i40e_irq_dynamic_disable_icr0(9), i40e_irq_dynamic_enable_icr0(9), i40e_msix_clean_rings(9), i40e_irq_affinity_notify(9), i40e_irq_affinity_release(9), i40e_vsi_request_irq_msix(9), i40e_vsi_disable_irq(9), i40e_vsi_enable_irq(9), i40e_free_misc_vector(9), i40e_intr(9), i40e_clean_fdir_tx_irq(9), i40e_fdir_clean_ring(9), i40e_map_vector_to_qp(9), i40e_vsi_map_rings_to_vectors(9), i40e_vsi_request_irq(9), i40e_netpoll(9), i40e_pf_txq_wait(9), i40e_control_tx_q(9), i40e_control_wait_tx_q(9), i40e_vsi_enable_tx(9), i40e_pf_rxq_wait(9), i40e_control_rx_q(9), i40e_control_wait_rx_q(9), i40e_vsi_enable_rx(9), i40e_vsi_start_rings(9), i40e_vsi_stop_rings(9), i40e_vsi_stop_rings_no_wait(9), i40e_vsi_free_irq(9), i40e_free_q_vector(9), i40e_vsi_free_q_vectors(9), i40e_reset_interrupt_capability(9), i40e_clear_interrupt_scheme(9), i40e_napi_enable_all(9), i40e_napi_disable_all(9), i40e_vsi_close(9), i40e_quiesce_vsi(9), i40e_unquiesce_vsi(9), i40e_pf_quiesce_all_vsi(9), i40e_pf_unquiesce_all_vsi(9), i40e_vsi_wait_queues_disabled(9), i40e_pf_wait_queues_disabled(9)

DCB, traffic classes, bandwidth, channels — the whole queen bee section 👑💖

i40e_get_iscsi_tc_map(9), i40e_dcb_get_num_tc(9), i40e_dcb_get_enabled_tc(9), i40e_mqprio_get_enabled_tc(9), i40e_pf_get_num_tc(9), i40e_pf_get_tc_map(9), i40e_vsi_get_bw_info(9), i40e_vsi_configure_bw_alloc(9), i40e_vsi_config_netdev_tc(9), i40e_vsi_update_queue_map(9), i40e_update_adq_vsi_queues(9), i40e_vsi_config_tc(9), i40e_vsi_reconfig_tc(9), i40e_get_link_speed(9), i40e_bw_bytes_to_mbits(9), i40e_set_bw_limit(9), i40e_remove_queue_channels(9), i40e_get_max_queues_for_channel(9), i40e_validate_num_queues(9), i40e_vsi_reconfig_rss(9), i40e_channel_setup_queue_map(9), i40e_add_channel(9), i40e_channel_config_tx_ring(9), i40e_setup_hw_channel(9), i40e_setup_channel(9), i40e_validate_and_set_switch_mode(9), i40e_create_queue_channel(9), i40e_configure_queue_channels(9), i40e_veb_config_tc(9), i40e_dcb_reconfigure(9), i40e_resume_port_tx(9), i40e_suspend_port_tx(9), i40e_hw_set_dcb_config(9), i40e_hw_dcb_config(9), i40e_dcb_sw_default_config(9), i40e_init_pf_dcb(9), i40e_print_link_message(9), i40e_up_complete(9), i40e_vsi_reinit_locked(9), i40e_force_link_state(9), i40e_up(9), i40e_down(9), i40e_validate_mqprio_qopt(9), i40e_vsi_set_default_tc_config(9)

macvlan, cloud filters, cls_flower, and the whole tc setup bestie 🦋

i40e_del_macvlan_filter(9), i40e_add_macvlan_filter(9), i40e_reset_ch_rings(9), i40e_free_macvlan_channels(9), i40e_fwd_ring_up(9), i40e_setup_macvlans(9), i40e_fwd_add(9), i40e_del_all_macvlans(9), i40e_fwd_del(9), i40e_setup_tc(9), i40e_set_cld_element(9), i40e_add_del_cloud_filter(9), i40e_add_del_cloud_filter_big_buf(9), i40e_parse_cls_flower(9), i40e_handle_tclass(9), i40e_configure_clsflower(9), i40e_find_cloud_filter(9), i40e_delete_clsflower(9), i40e_setup_tc_cls_flower(9), i40e_open(9), i40e_netif_set_realnum_tx_rx_queues(9), i40e_vsi_open(9), i40e_fdir_filter_exit(9), i40e_cloud_filter_exit(9), i40e_close(9)

resets, subtasks, events — the drama arc of the driver 😭✨

i40e_do_reset(9), i40e_dcb_need_reconfig(9), i40e_handle_lldp_event(9), i40e_do_reset_safe(9), i40e_handle_lan_overflow_event(9), i40e_get_current_fd_count(9), i40e_get_global_fd_count(9), i40e_reenable_fdir_sb(9), i40e_reenable_fdir_atr(9), i40e_delete_invalid_filter(9), i40e_fdir_flush_and_replay(9), i40e_get_current_atr_cnt(9), i40e_fdir_reinit_subtask(9), i40e_vsi_link_event(9), i40e_veb_link_event(9), i40e_link_event(9), i40e_watchdog_subtask(9), i40e_reset_subtask(9), i40e_handle_link_event(9), i40e_clean_adminq_subtask(9), i40e_verify_eeprom(9), i40e_enable_pf_switch_lb(9), i40e_disable_pf_switch_lb(9), i40e_config_bridge_mode(9), i40e_reconstitute_veb(9), i40e_get_capabilities(9), i40e_fdir_sb_setup(9), i40e_fdir_teardown(9), i40e_rebuild_cloud_filters(9), i40e_rebuild_channels(9), i40e_clean_xps_state(9), i40e_prep_for_reset(9), i40e_send_version(9), i40e_get_oem_version(9), i40e_reset(9), i40e_rebuild(9), i40e_reset_and_rebuild(9), i40e_handle_reset_warning(9), i40e_print_vf_mdd_event(9), i40e_print_vfs_mdd_events(9), i40e_handle_mdd_event(9), i40e_service_task(9), i40e_service_timer(9)

VSI allocation and the msix/interrupt scheme girlies 💀

i40e_set_num_rings_in_vsi(9), i40e_vsi_alloc_arrays(9), i40e_vsi_mem_alloc(9), i40e_vsi_free_arrays(9), i40e_clear_rss_config_user(9), i40e_vsi_clear(9), i40e_vsi_clear_rings(9), i40e_alloc_rings(9), i40e_reserve_msix_vectors(9), i40e_init_msix(9), i40e_vsi_alloc_q_vector(9), i40e_vsi_alloc_q_vectors(9), i40e_init_interrupt_scheme(9), i40e_restore_interrupt_scheme(9), i40e_setup_misc_vector_for_recovery_mode(9), i40e_setup_misc_vector(9), i40e_get_rss_aq(9), i40e_config_rss_reg(9), i40e_get_rss_reg(9), i40e_config_rss(9), i40e_get_rss(9), i40e_fill_rss_lut(9), i40e_pf_config_rss(9), i40e_reconfig_rss_queues(9), i40e_get_partition_bw_setting(9), i40e_set_partition_bw_setting(9), i40e_is_total_port_shutdown_enabled(9)

netdev ops, features, XDP, queue pairs, and literally everything else 🎀

and the final boss row: probe, remove, power management, and module init/exit 🧚💖

i40e_get_platform_mac_addr(9), i40e_set_fec_in_flags(9), i40e_check_recovery_mode(9), i40e_pf_loop_reset(9), i40e_check_fw_empr(9), i40e_handle_resets(9), i40e_init_recovery_mode(9), i40e_set_subsystem_device_id(9), i40e_probe(9), i40e_remove(9), i40e_enable_mc_magic_wake(9), i40e_io_suspend(9), i40e_io_resume(9), i40e_pci_error_detected(9), i40e_pci_error_slot_reset(9), i40e_pci_error_reset_prepare(9), i40e_pci_error_reset_done(9), i40e_pci_error_resume(9), i40e_shutdown(9), i40e_suspend(9), i40e_resume(9), i40e_init_module(9), i40e_exit_module(9)

periodt. that's the whole list, every single one, we do not leave a sister behind 💅✨

iykyk: this page lives in ./drivers/net/ethernet/intel/i40e, and it's dated October 2026. go off, calendar queen 🌈

and that's the whole page, bestie — short function, huge friend group, main character energy all around. stay hydrated, read your man pages, and remember: if it's disabled, reenabe it 🎀💖 (or, y'know, "reenable" it — the source can spell it however it wants, we still love her) 🦋

📦 where this page comes from

nixpkgs unstable: linux-manual 7.3.1
💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on 2026-11-04: a language model's rewrite of the original, under its terms