idpf_get_rxfh_key_size(9)

💅 idpf_get_rxfh_key_size(9) ✨

okay bestie, welcome to the Kernel API Manual section 9 page for idpf_get_rxfh_key_size — yes that's a whole mouthful, but it's literally the RSS hash key size getter and it's kind of iconic for how tiny it is 🎀

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🌸 NAME 🌸

idpf_get_rxfh_key_size — get the RSS hash key size 🦋

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✨ SYNOPSIS ✨

u32 idpf_get_rxfh_key_size (struct net_device *netdev );

like, that's the whole vibe. one function, one arg, one u32 coming back at you 💖

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🫶 ARGUMENTS 🫶

• netdev — the network interface device structure, aka the whole entire network device thing you're asking about. she's the main character here 👑

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🔥 DESCRIPTION 🔥

Returns the key size on success, error value on failure. that's it, that's the paragraph. no cap 🧚

so yeah — you call her, she gives you the key size (slay ✨), or she gives you an error value if things went sideways (😭). either way, she's telling you something, so pay attention.

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🌈 SEE ALSO 🌈

okay so the sources, iykyk:

• Kernel file ./drivers/net/ethernet/intel/idpf/idpf_ethtool.c 📁

and the whole friend group, fr fr:

• idpf_get_rx_ring_count(9)
• idpf_get_rxnfc(9)
• idpf_add_flow_steer(9)
• idpf_del_flow_steer(9)
• idpf_get_rxfh_indir_size(9)
• idpf_get_rxfh(9)
• idpf_set_rxfh(9)
• idpf_get_channels(9)
• idpf_set_channels(9)
• idpf_get_ringparam(9)
• idpf_set_ringparam(9)
• struct idpf_stats(9)
• __idpf_add_qstat_strings(9)
• idpf_add_qstat_strings(9)
• idpf_add_stat_strings(9)
• idpf_get_stat_strings(9)
• idpf_get_strings(9)
• idpf_get_sset_count(9)
• idpf_add_one_ethtool_stat(9)
• idpf_add_queue_stats(9)
• idpf_add_empty_queue_stats(9)
• idpf_add_port_stats(9)
• idpf_collect_queue_stats(9)
• idpf_get_ethtool_stats(9)
• idpf_find_rxq_vec(9)
• idpf_find_txq_vec(9)
• __idpf_get_q_coalesce(9)
• idpf_get_q_coalesce(9)
• idpf_get_coalesce(9)
• idpf_get_per_q_coalesce(9)
• __idpf_set_q_coalesce(9)
• idpf_set_q_coalesce(9)
• idpf_set_coalesce(9)
• idpf_set_per_q_coalesce(9)
• idpf_get_msglevel(9)
• idpf_set_msglevel(9)
• idpf_get_link_ksettings(9)
• idpf_get_timestamp_filters(9)
• idpf_get_ts_info(9)
• idpf_get_ts_stats(9)
• idpf_set_ethtool_ops(9)

like, that's a lot of besties. queen behavior honestly 💜

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💀 reminder: these are all section 9 kernel API pages, so if you're lost, just look 'em up — they're all right there in the idpf driver family. no cap.

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and that's the page!! 🎀 source/version lives at ./drivers/net/ethernet/intel/idpf, dated October 2026, and the page is idpf_get_rxfh_key_size(9) — mwah, go get that key size bestie 🍓✨💅