sw_w_table_64(9)

💅 sw_w_table_64 — Kernel API Manual ✨

okay so bestie, welcome to the sw_w_table_64(9) glow-up page — it's a kernel API manual and it's literally all about writing 8 bytes of data to the switch table. no cap. 🦋

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🌸 NAME 🌸

sw_w_table_64 — write 8 bytes of data to the switch table 💖

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✨ SYNOPSIS ✨

void sw_w_table_64 (struct ksz_hw *hw , int table , u16 addr , u32
data_hi , u32 data_lo );

like, that's the whole signature, slay 🎀

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🫶 ARGUMENTS 🫶

• hw — the hardware instance, aka the main character of this whole operation 👑
• table — the table selector. which table we're pulling up to 💅
• addr — the address of the table entry. the exact spot, no guessing 🎯
• data_hi — the high part of the data to be written, bit63 ~ bit32. yes the whole top half ⭐
• data_lo — the low part of the data to be written, bit31 ~ bit0. and the bottom half 🍓

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💀 DESCRIPTION 💀

okay so this routine literally writes 8 bytes of data to the table of the switch. that's it, that's the vibe ✨

and listen — hardware interrupts are disabled to minimize corruption of written data. so like, don't be weird about it, the interrupts are OFF on purpose, it's giving "focus mode" 🙈🔥

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🌈 SEE ALSO 🌈

the kernel file is ./drivers/net/ethernet/micrel/ksz884x.c, and honestly? the friend group here is HUGE. iykyk 👑

structs first, because we stan structure: 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_mac_table(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)

then the switch/hw besties: hw_turn_on_intr(9), hw_block_intr(9), sw_r_table(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)

the timer/desc/memory crew: 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)

and the netdev/ethtool icons, periodt: 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)

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okay that's the whole page, love u, go write ur 8 bytes bestie 🧚💜

— from the gang at ./drivers/net/ethernet/micrel, dated October 2026, page sw_w_table_64(9), mwah 😭🎀