STRUCT ETHTOOL_NETDEV_STATE(9)

💅 struct ethtool_netdev_state(9) — a Kernel API Manual moment

okay so bestie, welcome to the glow-up era of your kernel's ethtool state ✨ this is the page for struct ethtool_netdev_state, which is literally the per-netdevice state for ethtool features. like, every netdevice gets its own lil vibe check locker 🎀 and this struct is what's inside it.

✨ NAME ✨

struct ethtool_netdev_state — per-netdevice state for ethtool features 🫶

🌸 SYNOPSIS 🌸

struct ethtool_netdev_state {
    struct xarray           rss_ctx;
    struct mutex            rss_lock;
    u32 rss_indir_user_size;
    unsigned phys_id_busy:1;
    unsigned wol_enabled:1;
    unsigned module_fw_flash_in_progress:1;
 };

💖 Members 💖 (yes, the members are the main characters here)

• rss_ctx — an XArray of custom RSS contexts. it's giving "collection of situations" 💅
• rss_lock — this is the bouncer that protects the entries in rss_ctx. and hear me out: it may be taken from within RTNL. iykyk, that's a whole thing 🔥
• rss_indir_user_size — the number of user provided entries for the default (context 0) indirection table. like, the count of things the user actually brought to the party 🎀
• phys_id_busy — the loop blinking the device LED is running. yes, the physical-identification light show is live, periodt 🌈⭐
• wol_enabled — Wake-on-LAN is enabled. your NIC can be summoned from across the network, iconic 👑
• module_fw_flash_in_progress — module firmware flashing is in progress. do NOT touch anything, this is a moment 😭💀

🦋 SEE ALSO 🦋

bestie, the cross-reference list is long, and not me about to list every single one because we do not skip entries in this house 🫶

• Kernel file ./include/linux/ethtool.h
• enum ethtool_phys_id_state(9)
• struct kernel_ethtool_ringparam(9)
• enum ethtool_supported_ring_param(9)
• ethtool_rxfh_indir_default(9)
• struct ethtool_rxfh_context(9)
• ethtool_link_ksettings_zero_link_mode(9)
• ethtool_link_ksettings_add_link_mode(9)
• ethtool_link_ksettings_del_link_mode(9)
• ethtool_link_ksettings_test_link_mode(9)
• ethtool_intersect_link_masks(9)
• struct ethtool_phy_stats(9)
• struct ethtool_pause_stats(9)
• struct ethtool_fec_hist_range(9)
• struct ethtool_fec_stats(9)
• struct ethtool_rmon_hist_range(9)
• struct ethtool_rmon_stats(9)
• struct ethtool_ts_stats(9)
• struct ethtool_module_eeprom(9)
• struct ethtool_module_power_mode_params(9)
• struct ethtool_mm_state(9)
• struct ethtool_mm_cfg(9)
• struct ethtool_mm_stats(9)
• struct ethtool_mmsv_ops(9)
• struct ethtool_mmsv(9)
• struct ethtool_rxfh_param(9)
• struct ethtool_rxfh_fields(9)
• struct kernel_ethtool_ts_info(9)
• struct ethtool_ops(9)
• struct ethtool_phy_ops(9)
• ethtool_set_ethtool_phy_ops(9)
• ethtool_params_from_link_mode(9)
• ethtool_get_phc_vclocks(9)
• ethtool_mm_frag_size_add_to_min(9)
• ethtool_mm_frag_size_min_to_add(9)
• ethtool_get_ts_info_by_layer(9)
• ethtool_sprintf(9)
• ethtool_puts(9)
• ethtool_cpy(9)

ok that's the whole page, no cap 💜 go read the other ethtool ones next, they're lowkey obsessed with each other.

and that's the wrap bestie 🫶 this lil beauty lives in ./include/linux and dropped October 2026 — star it, screenshot it, send it to the group chat 🌸✨