i40e_get_rxfh_key_size(9)

💖 i40e_get_rxfh_key_size — get the RSS hash key size 💖

okay so bestie, welcome to the kernel API manual! this is a page from the Linux kernel docs, living over in ./drivers/net/ethernet/intel/i40e, and it's all about one lil' function that tells you how big the RSS hash key is. short page, but honestly? it ate. let's get into it 🫶

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✨ NAME ✨

i40e_get_rxfh_key_size — get the RSS hash key size 💅

like, that's literally the whole vibe. you want the key size, this function hands it to you.

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🦋 SYNOPSIS 🦋

u32 i40e_get_rxfh_key_size (struct net_device *netdev );

so it takes one arg and gives you back a u32. clean, simple, no drama. ✨

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🌸 ARGUMENTS 🌸

• netdev — the network interface device structure. that's your network interface device structure right there, bestie, it's giving main character energy and it's the only thing you gotta pass in 💖

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👑 DESCRIPTION 👑

so what does it actually do? it returns the table size. yep. that's the description. it returns the table size, periodt. no cap, that's literally the whole thing — the function returns the table size. 🔥

ngl it's a short one, but not every icon needs a whole monologue. sometimes you just return the table size and leave. 💅

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💜 SEE ALSO 💜

okay this is the part where it gets iconic, because the SEE ALSO list here is long. like, unreasonably long. but we're not skipping a single one, bestie — every reference is sacred. 🎀

first up, the kernel file itself:

• ./drivers/net/ethernet/intel/i40e/i40e_ethtool.c

then the whole friend group:

• struct i40e_stats(9)
• i40e_add_one_ethtool_stat(9)
• __i40e_add_ethtool_stats(9)
• i40e_add_ethtool_stats(9)
• i40e_add_queue_stats(9)
• __i40e_add_stat_strings(9)
• i40e_add_stat_strings(9)
• i40e_partition_setting_complaint(9)
• i40e_phy_type_to_ethtool(9)
• i40e_get_settings_link_up_fec(9)
• i40e_get_settings_link_up(9)
• i40e_get_settings_link_down(9)
• i40e_get_link_ksettings(9)
• i40e_speed_to_link_speed(9)
• i40e_set_link_ksettings(9)
• i40e_get_pauseparam(9)
• i40e_set_pauseparam(9)
• i40e_get_stats_count(9)
• i40e_get_veb_tc_stats(9)
• i40e_get_pfc_stats(9)
• i40e_get_ethtool_stats(9)
• i40e_get_stat_strings(9)
• i40e_set_wol(9)
• __i40e_get_coalesce(9)
• i40e_get_coalesce(9)
• i40e_get_per_queue_coalesce(9)
• i40e_set_itr_per_queue(9)
• __i40e_set_coalesce(9)
• i40e_set_coalesce(9)
• i40e_set_per_queue_coalesce(9)
• i40e_check_mask(9)
• i40e_parse_rx_flow_user_data(9)
• i40e_fill_rx_flow_user_data(9)
• i40e_get_ethtool_fdir_all(9)
• i40e_get_ethtool_fdir_entry(9)
• i40e_get_rx_ring_count(9)
• i40e_get_rxnfc(9)
• i40e_get_rss_hash_bits(9)
• i40e_update_ethtool_fdir_entry(9)
• i40e_prune_flex_pit_list(9)
• i40e_del_fdir_entry(9)
• i40e_unused_pit_index(9)
• i40e_find_flex_offset(9)
• i40e_add_flex_offset(9)
• __i40e_reprogram_flex_pit(9)
• i40e_reprogram_flex_pit(9)
• i40e_flow_str(9)
• i40e_pit_index_to_mask(9)
• i40e_print_input_set(9)
• i40e_check_fdir_input_set(9)
• i40e_match_fdir_filter(9)
• i40e_disallow_matching_filters(9)
• i40e_add_fdir_ethtool(9)
• i40e_set_rxnfc(9)
• i40e_max_channels(9)
• i40e_get_channels(9)
• i40e_set_channels(9)
• i40e_get_rxfh_indir_size(9)
• i40e_get_rxfh(9)
• i40e_set_rxfh(9)
• i40e_get_priv_flags(9)
• i40e_set_priv_flags(9)
• i40e_get_module_info(9)
• i40e_get_module_eeprom(9)

yeah. that's the whole list. i told you we weren't skipping any. 😭💀

ngl, if you're reading this page you probably came here for i40e_get_rxfh_key_size and got jumpscared by sixty other functions. that's just how the kernel docs roll, bestie. 🧚

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and that's the page! short and sweet like a lil' strawberry 🍓 — this was the i40e_get_rxfh_key_size(9) page from the Linux kernel API manual, sourced from ./drivers/net/ethernet/intel/i40e, dated October 2026. mwah, go return some table sizes, ily 🫶✨🎀