ice_loopback_test(9)

ice_loopback_test(9) 💅

okay so welcome to the Kernel API Manual, bestie — this page is all about ice_loopback_test, and it's giving “one specific kernel self-test” energy ✨

🌸 NAME 🌸

ice_loopback_test — perform a loopback test on a given net_device

🎀 SYNOPSIS 🎀

u64 ice_loopback_test (struct net_device *netdev );

🦋 ARGUMENTS 🦋

• netdev — the network interface device structure, aka the struct net_device cutie this test is running on 🫶

✨ DESCRIPTION ✨

okay so this function performs one of the self-tests required by ethtool. That's the whole vibe.

It returns 0 on success, and non-zero on failure. no cap 💖

👑 SEE ALSO 👑

the kernel file is literally ./drivers/net/ethernet/intel/ice/ice_ethtool.c — and bestie, the whole squad is here, every single one:

• ice_ethtool_get_maxspeed(9)
• ice_is_serdes_muxed(9)
• ice_get_port_topology(9)
• ice_get_tx_rx_equa(9)
• ice_get_extended_regs(9)
• ice_active_vfs(9)
• ice_link_test(9)
• ice_eeprom_test(9)
• ice_reg_pattern_test(9)
• ice_reg_test(9)
• ice_lbtest_prepare_rings(9)
• ice_lbtest_disable_rings(9)
• ice_lbtest_create_frame(9)
• ice_lbtest_check_frame(9)
• ice_diag_send(9)
• ice_lbtest_receive_frames(9)
• ice_intr_test(9)
• ice_self_test(9)
• ice_set_fec_cfg(9)
• ice_set_fecparam(9)
• ice_get_fecparam(9)
• ice_nway_reset(9)
• ice_get_priv_flags(9)
• ice_set_priv_flags(9)
• ice_mask_min_supported_speeds(9)
• ice_linkmode_set_bit(9)
• ice_phy_type_to_ethtool(9)
• ice_get_settings_link_up(9)
• ice_get_settings_link_down(9)
• ice_get_link_ksettings(9)
• ice_speed_to_aq_link(9)
• ice_ksettings_find_adv_link_speed(9)
• ice_setup_autoneg(9)
• ice_set_phy_type_from_speed(9)
• ice_set_link_ksettings(9)
• ice_set_rxnfc(9)
• ice_get_rx_ring_count(9)
• ice_get_rxnfc(9)
• ice_get_pauseparam(9)
• ice_set_pauseparam(9)
• ice_get_rxfh_key_size(9)
• ice_get_rxfh_indir_size(9)
• ice_get_rxfh(9)
• ice_set_rxfh(9)
• ice_get_combined_cnt(9)
• ice_get_channels(9)
• ice_get_valid_rss_size(9)
• ice_vsi_set_dflt_rss_lut(9)
• ice_set_channels(9)
• ice_get_wol(9)
• ice_set_wol(9)
• ice_get_rc_coalesce(9)
• ice_get_q_coalesce(9)
• __ice_get_coalesce(9)
• ice_set_rc_coalesce(9)
• ice_set_q_coalesce(9)
• ice_print_if_odd_usecs(9)
• __ice_set_coalesce(9)
• ice_get_module_info(9)
• ice_get_module_eeprom(9)
• ice_get_port_fec_stats(9)
• ice_get_fec_stats(9)
• ice_ethtool_reset(9)
• ice_repr_ethtool_reset(9)
• ice_set_ethtool_safe_mode_ops(9)
• ice_set_ethtool_repr_ops(9)
• ice_set_ethtool_ops(9)

mwah 💋 — source/version: ./drivers/net/ethernet/intel/ice; date: October 2026 🫶