netdev_set_rx_mode(9)

💖 NAME

okay so bestie, this page is about netdev_set_rx_mode — and the one-line description after the dash is literally blank in the source. not me finding the only manpage with an empty caption 😭. so: the function is netdev_set_rx_mode, that's the whole flex. the actual tea is down in DESCRIPTION, keep scrolling 🫶

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✨ SYNOPSIS

void netdev_set_rx_mode (struct net_device *dev );

that's it. one call, returns void, no notes. icon behavior honestly 💅

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🎀 ARGUMENTS

• dev — the network device. that's the whole thing. it's giving "label says exactly what's in the box" ✨

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🦋 DESCRIPTION

so what does this routine actually do? two jobs, both very main character energy:

• it's used to set multicast addresses 🦋
• and it's used to put the network device into promiscuous mode 👑

like, it handles your group-chat subscriptions (multicast) and the "listen to literally everything" era (promiscuous mode). versatility ate, no cap 🔥

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🌈 SEE ALSO

okay this next part is a lot and i mean a lot — it's basically the entire ksz884x cast list, everyone showed up to the group chat 💀 here they all are, nobody gets left on read:

the kernel file in question is ./drivers/net/ethernet/micrel/ksz884x.c 🧚

then the structs, 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_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) 🌸

the hardware + interrupt crew: 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) 🔥

the broad-storm + priority + vlan era: 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) 💜

the phy / eeprom / link-speed girlies: 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) ⭐

the wake-on-lan cinematic universe: 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) 🌈

the hw setup and rx/tx grind: 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) 🎀

the addressing squad (yes this is where the multicast/promiscuous plot lives): 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) 👑

switch bring-up: 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) 💖

the transmit pipeline: send_packet(9), transmit_cleanup(9), tx_done(9), netdev_tx(9), netdev_tx_timeout(9), netdev_intr(9) 🦋

the netdev ops themselves: netdev_close(9), netdev_open(9), netdev_query_statistics(9), netdev_set_mac_address(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) 🌟

that's the whole roster, unedited, nobody cut. iykyk 💀

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and that's the page, bestie 🫶 this lil masterpiece lives in ./drivers/net/ethernet/micrel, dated October 2026 — go drink some water and go touch a network device respectfully 💜