STRUCT ETHTOOL_SET_FEATURES_BLOCK(9)

💅 struct ethtool_set_features_block(9) 💅

okay so this is a page from the Kernel API Manual, and it's all about struct ethtool_set_features_block — literally the little block that carries your feature requests, 32 of them at a time. bestie, let's get into it 🎀

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✨ NAME ✨

struct ethtool_set_features_block — the block with the request for 32 features 🦋

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🌸 SYNOPSIS 🌸

struct ethtool_set_features_block {
    __u32 valid;
    __u32 requested;
 };

like, that's the whole struct. two __u32s. she's small but she's doing her job 💅

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👑 Members 👑

• valid — the mask of features to be changed, iykyk. this is the "which ones tho" field 🌈
• requested — the values of the features to be changed. this is the "okay but what should they be" field ✨

fr fr, valid says what you're touching and requested says what you want it to become. iconic duo behavior 🫶

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🦋 SEE ALSO 🦋

okay this is the part where she name-drops literally everyone in the friend group 😭 all of these live in the kernel file ./include/uapi/linux/ethtool.h:

• struct ethtool_cmd(9)
• struct ethtool_drvinfo(9)
• struct ethtool_wolinfo(9)
• struct ethtool_regs(9)
• struct ethtool_eeprom(9)
• struct ethtool_eee(9)
• struct ethtool_modinfo(9)
• struct ethtool_coalesce(9)
• struct ethtool_ringparam(9)
• struct ethtool_channels(9)
• struct ethtool_pauseparam(9)
• enum ethtool_stringset(9)
• enum ethtool_mac_stats_src(9)
• enum ethtool_module_power_mode_policy(9)
• enum ethtool_module_power_mode(9)
• enum ethtool_c33_pse_ext_state(9)
• enum ethtool_c33_pse_ext_substate_mr_mps_valid(9)
• enum ethtool_c33_pse_ext_substate_error_condition(9)
• enum ethtool_c33_pse_ext_substate_mr_pse_enable(9)
• enum ethtool_c33_pse_ext_substate_option_detect_ted(9)
• enum ethtool_c33_pse_ext_substate_option_vport_lim(9)
• enum ethtool_c33_pse_ext_substate_ovld_detected(9)
• enum ethtool_c33_pse_ext_substate_power_not_available(9)
• enum ethtool_c33_pse_ext_substate_short_detected(9)
• enum ethtool_pse_types(9)
• enum ethtool_c33_pse_admin_state(9)
• enum ethtool_c33_pse_pw_d_status(9)
• enum ethtool_podl_pse_admin_state(9)
• enum ethtool_podl_pse_pw_d_status(9)
• enum ethtool_mm_verify_status(9)
• enum ethtool_module_fw_flash_status(9)
• struct ethtool_gstrings(9)
• struct ethtool_sset_info(9)
• enum ethtool_test_flags(9)
• struct ethtool_test(9)
• struct ethtool_stats(9)
• struct ethtool_perm_addr(9)
• struct ethtool_tcpip4_spec(9)
• struct ethtool_ah_espip4_spec(9)
• struct ethtool_usrip4_spec(9)
• struct ethtool_tcpip6_spec(9)
• struct ethtool_ah_espip6_spec(9)
• struct ethtool_usrip6_spec(9)
• struct ethtool_flow_ext(9)
• struct ethtool_rx_flow_spec(9)
• struct ethtool_rxnfc(9)
• struct ethtool_rxfh_indir(9)
• struct ethtool_rxfh(9)
• struct ethtool_rx_ntuple_flow_spec(9)
• struct ethtool_rx_ntuple(9)
• struct ethtool_dump(9)
• struct ethtool_get_features_block(9)
• struct ethtool_gfeatures(9)
• struct ethtool_sfeatures(9)
• struct ethtool_ts_info(9)
• struct ethtool_per_queue_op(9)
• struct ethtool_fecparam(9)
• enum ethtool_fec_config_bits(9)
• struct ethtool_link_settings(9)
• enum phy_upstream(9)

like... that's the whole extended universe, no cap 💀 take your time, she's worth it 💖

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okay that's the page!! sourced straight from ./include/uapi/linux, stamped October 2026, from the Kernel API Manual — slay, bye bestie 👋💜