i40e_aq_set_mac_config(9)

✨ i40e_aq_set_mac_config ✨

okay bestie, welcome to the i40e_aq_set_mac_config(9) manual page — yes it's a kernel API thing, yes it's iconic, and yes we're gonna get through it together 💖

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🌸 NAME 🌸

i40e_aq_set_mac_config — configure MAC settings, periodt 💅

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🎀 SYNOPSIS 🎀

so here's the function signature, bestie, copy it exactly don't come for me:

int i40e_aq_set_mac_config (struct i40e_hw *hw , u16 max_frame_size ,
struct i40e_asq_cmd_details *cmd_details );

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🦋 ARGUMENTS 🦋

okay so the tea on the arguments — there are three and they're all kinda main character energy:

• hw — pointer to the hw struct. literally the hardware's whole vibe, you're handing it over 😌
• max_frame_size — the Maximum Frame Size to be supported by the port. this is the big one, the whole point of the function, the moment 💅
• cmd_details — pointer to the command details structure, or NULL if you're keeping it minimal. both are valid bestie, no judgment 🫶

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💜 DESCRIPTION 💜

so what does this function actually DO? okay so like — it sets the MAC configuration, and the opcode is 0x0603 in case you were wondering, which you probably were ✨

and here's the important caveat bestie, listen up: max_frame_size must be greater than zero. no cap. if you pass zero it's giving "did not read the docs" energy 😭 keep it positive, keep it valid, slay 🎀

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🌈 RETURN 🌈

• 0 on success — yes bestie, we love a clean return 🥳
• or a negative error code on failure — which is the kernel's way of saying "something went wrong" without using its words 💀

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⭐ SEE ALSO ⭐

okay this list is giving crossover episode — it's LONG and honestly kind of iconic. here's every single reference, no skips, no cuts, all of them bestie:

first up, the source file:

• the kernel file ./drivers/net/ethernet/intel/i40e/i40e_common.c — that's where the magic lives 🧚

and now the whole friend group, in order, because they all deserve their moment:

i40e_set_mac_type(9), i40e_debug_aq(9), i40e_check_asq_alive(9), i40e_aq_queue_shutdown(9), i40e_aq_get_set_rss_lut(9), i40e_aq_get_rss_lut(9), i40e_aq_set_rss_lut(9), i40e_aq_get_set_rss_key(9), i40e_aq_get_rss_key(9), i40e_aq_set_rss_key(9), i40e_init_shared_code(9), i40e_aq_mac_address_read(9), i40e_aq_mac_address_write(9), i40e_get_mac_addr(9), i40e_get_port_mac_addr(9), i40e_pre_tx_queue_cfg(9), i40e_get_pba_string(9), i40e_get_media_type(9), i40e_poll_globr(9), i40e_pf_reset(9), i40e_clear_hw(9), i40e_clear_pxe_mode(9), i40e_led_is_mine(9), i40e_led_get(9), i40e_led_set(9), i40e_aq_get_phy_capabilities(9), i40e_aq_set_phy_config(9), i40e_set_fc(9), i40e_aq_clear_pxe_mode(9), i40e_aq_set_link_restart_an(9), i40e_aq_get_link_info(9), i40e_aq_set_phy_int_mask(9), i40e_aq_set_mac_loopback(9), i40e_aq_set_phy_debug(9), i40e_aq_add_vsi(9), i40e_aq_set_default_vsi(9), i40e_aq_clear_default_vsi(9), i40e_aq_set_vsi_unicast_promiscuous(9), i40e_aq_set_vsi_multicast_promiscuous(9), i40e_aq_set_vsi_mc_promisc_on_vlan(9), i40e_aq_set_vsi_uc_promisc_on_vlan(9), i40e_aq_set_vsi_bc_promisc_on_vlan(9), i40e_aq_set_vsi_broadcast(9), i40e_aq_get_vsi_params(9), i40e_aq_update_vsi_params(9), i40e_aq_get_switch_config(9), i40e_aq_set_switch_config(9), i40e_aq_get_firmware_version(9), i40e_aq_send_driver_version(9), i40e_get_link_status(9), i40e_update_link_info(9), i40e_aq_add_veb(9), i40e_aq_get_veb_parameters(9), i40e_prepare_add_macvlan(9), i40e_aq_add_macvlan(9), i40e_aq_add_macvlan_v2(9), i40e_aq_remove_macvlan(9), i40e_aq_remove_macvlan_v2(9), i40e_aq_send_msg_to_vf(9), i40e_aq_debug_read_register(9), i40e_aq_debug_write_register(9), i40e_aq_request_resource(9), i40e_aq_release_resource(9), i40e_aq_read_nvm(9), i40e_aq_erase_nvm(9), i40e_parse_discover_capabilities(9), i40e_aq_discover_capabilities(9), i40e_aq_update_nvm(9), i40e_aq_get_lldp_mib(9), i40e_aq_set_lldp_mib(9), i40e_aq_cfg_lldp_mib_change_event(9), i40e_aq_stop_lldp(9), i40e_aq_start_lldp(9), i40e_aq_set_dcb_parameters(9), i40e_aq_get_cee_dcb_config(9), i40e_aq_add_udp_tunnel(9), i40e_aq_del_udp_tunnel(9), i40e_aq_delete_element(9), i40e_aq_dcb_updated(9), i40e_aq_tx_sched_cmd(9), i40e_aq_config_vsi_bw_limit(9), i40e_aq_config_vsi_tc_bw(9), i40e_aq_config_switch_comp_ets(9), i40e_aq_config_switch_comp_bw_config(9), i40e_aq_query_vsi_bw_config(9), i40e_aq_query_vsi_ets_sla_config(9), i40e_aq_query_switch_comp_ets_config(9), i40e_aq_query_port_ets_config(9), i40e_aq_query_switch_comp_bw_config(9), i40e_validate_filter_settings(9), i40e_set_filter_control(9), i40e_aq_add_rem_control_packet_filter(9), i40e_add_filter_to_drop_tx_flow_control_frames(9), i40e_aq_alternate_read(9), i40e_aq_suspend_port_tx(9), i40e_aq_resume_port_tx(9), i40e_set_pci_config_data(9), i40e_aq_debug_dump(9), i40e_read_bw_from_alt_ram(9), i40e_aq_configure_partition_bw(9), i40e_read_phy_register_clause22(9), i40e_write_phy_register_clause22(9), i40e_read_phy_register_clause45(9), i40e_write_phy_register_clause45(9), i40e_get_phy_address(9), i40e_led_get_reg(9), i40e_led_set_reg(9), i40e_led_get_phy(9), i40e_led_set_phy(9), i40e_aq_rx_ctl_read_register(9), i40e_read_rx_ctl(9), i40e_aq_rx_ctl_write_register(9), i40e_write_rx_ctl(9), i40e_mdio_if_number_selection(9), i40e_aq_set_phy_register_ext(9), i40e_aq_get_phy_register_ext(9), i40e_aq_write_ddp(9), i40e_aq_get_ddp_list(9), i40e_find_segment_in_package(9), i40e_ddp_exec_aq_section(9), i40e_validate_profile(9), i40e_write_profile(9), i40e_rollback_profile(9), i40e_aq_add_cloud_filters(9), i40e_aq_add_cloud_filters_bb(9), i40e_aq_rem_cloud_filters(9), i40e_aq_rem_cloud_filters_bb(9)

yeah bestie that's all of them, every single one, you're welcome 💖

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okay that's the whole page! hope it was giving exactly what you needed 🫶 and for the record — this masterpiece comes to you from ./drivers/net/ethernet/intel/i40e, dated October 2026, and honestly? iconic. periodt. 💅✨🌈