STRUCT KSZ_MAC_TABLE(9)

💅 struct ksz_mac_table(9) — the static MAC table glow-up

okay so bestie, we're in the Kernel API Manual today and the vibe is networking internals. this is struct ksz_mac_table, and it's literally the static MAC table data structure. no cap, that's the whole NAME. 🎀

✨ SYNOPSIS ✨

here's the whole thing, character for character, don't @ me:

struct ksz_mac_table {
    u8 mac_addr[ETH_ALEN];
    u16 vid;
    u8 fid;
    u8 ports;
    u8 override:1;
    u8 use_fid:1;
    u8 valid:1;
 };

she's little, she's bitfield-y, she's iconic. 💜

🌸 Members 🌸

• mac_addr — the MAC address you're filtering on. the main character of the whole struct, honestly. 👑
• vid — the VID value.
• fid — the FID value.
• ports — port membership. who's in the group chat, basically. 🫶
• override — the override setting.
• use_fid — the FID use setting.
• valid — the valid setting, i.e. it tells you whether this entry is actually being used or just vibing there unused. ⭐

note bestie: override, use_fid and valid are all u8 1-bit bitfields (:1). tiny. precious. don't lose track of them. 💅

🦋 SEE ALSO 🦋

the kernel file this lives in is ./drivers/net/ethernet/micrel/ksz884x.c — and yes, the reference list is long long, so buckle up. every single one, in order:

• struct ksz_hw_desc(9), struct ksz_sw_desc(9), struct ksz_dma_buf(9), struct ksz_desc(9), struct ksz_desc_info(9), struct ksz_vlan_table(9), struct ksz_port_mib(9), struct ksz_port_cfg(9), struct ksz_switch(9), struct ksz_port_info(9)
• struct ksz_hw(9), struct ksz_port(9), struct ksz_timer_info(9), struct ksz_shared_mem(9), struct ksz_counter_info(9), struct dev_info(9), struct dev_priv(9)
• hw_turn_on_intr(9), hw_block_intr(9)
• sw_r_table(9), sw_w_table_64(9), sw_w_sta_mac_table(9), sw_r_vlan_table(9)
• port_r_mib_cnt(9), port_r_mib_pkt(9), port_r_cnt(9), port_init_cnt(9), port_cfg(9), port_r8(9), port_r16(9), port_w16(9)
• sw_chk(9), sw_cfg(9), sw_cfg_broad_storm(9), sw_get_broad_storm(9), sw_dis_broad_storm(9), sw_ena_broad_storm(9), sw_init_broad_storm(9), hw_cfg_broad_storm(9)
• sw_dis_prio_rate(9), sw_init_prio_rate(9), sw_dis_diffserv(9), sw_dis_802_1p(9), sw_cfg_replace_null_vid(9), sw_cfg_replace_vid(9), sw_cfg_port_based(9), sw_dis_multi_queue(9), sw_init_prio(9)
• port_get_def_vid(9), sw_init_vlan(9), sw_cfg_port_base_vlan(9), sw_set_addr(9), sw_set_global_ctrl(9), port_set_stp_state(9), sw_clr_sta_mac_table(9), sw_init_stp(9), sw_block_addr(9)
• hw_r_phy(9), hw_w_phy(9), eeprom_read(9), eeprom_write(9)
• port_get_link_speed(9), port_set_link_speed(9), port_force_link_speed(9)
• hw_chk_wol_pme_status(9), hw_clr_wol_pme_status(9), hw_cfg_wol_pme(9), hw_cfg_wol(9), hw_set_wol_frame(9), hw_add_wol_arp(9), hw_add_wol_bcast(9), hw_add_wol_mcast(9), hw_add_wol_ucast(9), hw_enable_wol(9)
• hw_init(9), hw_reset(9), hw_setup(9), hw_setup_intr(9), hw_set_desc_base(9), hw_start_rx(9), hw_stop_rx(9), hw_start_tx(9), hw_stop_tx(9), hw_disable(9), hw_enable(9), hw_alloc_pkt(9), hw_send_pkt(9), hw_set_addr(9), hw_read_addr(9), hw_clr_multicast(9), hw_set_grp_addr(9), hw_set_multicast(9), hw_set_promiscuous(9)
• sw_enable(9), sw_setup(9)
• ksz_start_timer(9), ksz_stop_timer(9), ksz_alloc_soft_desc(9), ksz_alloc_desc(9), free_dma_buf(9), ksz_init_rx_buffers(9), ksz_alloc_mem(9), ksz_free_desc(9), ksz_free_buffers(9), ksz_free_mem(9)
• send_packet(9), transmit_cleanup(9), tx_done(9), netdev_tx(9), netdev_tx_timeout(9), netdev_intr(9), netdev_close(9), netdev_open(9), netdev_query_statistics(9), netdev_set_mac_address(9), netdev_set_rx_mode(9), netdev_ioctl(9)
• mdio_read(9), mdio_write(9)
• netdev_get_link_ksettings(9), netdev_set_link_ksettings(9), netdev_nway_reset(9), netdev_get_link(9), netdev_get_drvinfo(9), netdev_get_regs_len(9), netdev_get_regs(9), netdev_get_wol(9), netdev_set_wol(9), netdev_get_msglevel(9), netdev_set_msglevel(9), netdev_get_eeprom_len(9), netdev_get_eeprom(9), netdev_set_eeprom(9), netdev_get_pauseparam(9), netdev_set_pauseparam(9), netdev_get_ringparam(9), netdev_get_strings(9), netdev_get_sset_count(9), netdev_get_ethtool_stats(9), netdev_set_features(9)
• dev_monitor(9), netdev_init(9)

iykyk. 🔥

that's the whole page bestie, you ate that 🫶 — source path ./drivers/net/ethernet/micrel, dated October 2026, and it's all struct ksz_mac_table(9) at the end of the day. mwah 💋✨