i40e_change_filter_num(9)

hey bestie 💖 you’ve landed on i40e_change_filter_num(9), fresh outta the Kernel API Manual. Buckle up, it’s a tiny one but we’re gonna treat it with main character energy ✨

🌸 NAME 🌸

i40e_change_filter_num — Prepare and program fdir filter 🫶

✨ SYNOPSIS ✨

okay so the signature is literally this, and yes, copy it exactly because code is not a vibe to freestyle:

void i40e_change_filter_num (bool ipv4 , bool add , u16 *ipv4_filter_num
       , u16 *ipv6_filter_num );

🎀 ARGUMENTS 🎀

• ipv4 — tells you if the layer 3 packet is version 4 or version 6 💅
• add — says whether we’re adding a filter or deleting one, periodt.
• ipv4_filter_num — the field to update ✨
• ipv6_filter_num — the other field to update 🎀

💜 DESCRIPTION 💜

Update filter number field for pf. That’s the described job, bestie — no cap 💅

🔥 SEE ALSO 🔥

if you wanna go down the rabbit hole, the kernel file itself is ./drivers/net/ethernet/intel/i40e/i40e_txrx.c, and these besties are all linked up:

• i40e_fdir(9)
• i40e_program_fdir_filter(9)
• i40e_create_dummy_packet(9)
• i40e_create_dummy_udp_packet(9)
• i40e_create_dummy_tcp_packet(9)
• i40e_create_dummy_sctp_packet(9)
• i40e_prepare_fdir_filter(9)
• i40e_add_del_fdir_udp(9)
• i40e_add_del_fdir_tcp(9)
• i40e_add_del_fdir_sctp(9)
• i40e_add_del_fdir_ip(9)
• i40e_add_del_fdir(9)
• i40e_fd_handle_status(9)
• i40e_unmap_and_free_tx_resource(9)
• i40e_clean_tx_ring(9)
• i40e_free_tx_resources(9)
• i40e_get_tx_pending(9)
• i40e_detect_recover_hung(9)
• i40e_clean_tx_irq(9)
• i40e_enable_wb_on_itr(9)
• i40e_force_wb(9)
• i40e_update_itr(9)
• i40e_reuse_rx_page(9)
• i40e_clean_programming_status(9)
• i40e_setup_tx_descriptors(9)
• i40e_clean_rx_ring(9)
• i40e_free_rx_resources(9)
• i40e_setup_rx_descriptors(9)
• i40e_release_rx_desc(9)
• i40e_alloc_mapped_page(9)
• i40e_alloc_rx_buffers(9)
• i40e_rx_checksum(9)
• i40e_rx_hash(9)
• i40e_process_skb_fields(9)
• i40e_cleanup_headers(9)
• i40e_can_reuse_rx_page(9)
• i40e_rx_buffer_flip(9)
• i40e_get_rx_buffer(9)
• i40e_put_rx_buffer(9)
• i40e_process_rx_buffs(9)
• i40e_construct_skb(9)
• i40e_build_skb(9)
• i40e_is_non_eop(9)
• i40e_run_xdp(9)
• i40e_xdp_ring_update_tail(9)
• i40e_update_rx_stats(9)
• i40e_finalize_xdp_rx(9)
• i40e_inc_ntp(9)
• i40e_add_xdp_frag(9)
• i40e_consume_xdp_buff(9)
• i40e_clean_rx_irq(9)
• i40e_buildreg_itr(9)
• i40e_update_enable_itr(9)
• i40e_napi_poll(9)
• i40e_atr(9)
• i40e_tx_prepare_vlan_flags(9)
• i40e_tso(9)
• i40e_tsyn(9)
• i40e_tx_enable_csum(9)
• i40e_create_tx_ctx(9)
• __i40e_maybe_stop_tx(9)
• __i40e_chk_linearize(9)
• i40e_tx_map(9)
• i40e_xmit_xdp_ring(9)
• i40e_xmit_frame_ring(9)
• i40e_lan_xmit_frame(9)
• i40e_xdp_xmit(9)

mwah 💋 this page came from ./drivers/net/ethernet/intel/i40e, dated October 2026, in the Kernel API Manual — bye bestie, go update those filter number fields! 🎀✨