iavf_get_rxnfc(9)

💅 iavf_get_rxnfc — the kernel manpage, but make it iconic

okay so bestie, welcome to iavf_get_rxnfc, a kernel API page from the iavf fam (that's the Intel® Ethernet Adaptive Virtual Function driver situation, iykyk). this one's all about getting your RX flow classification rules — like, literally fetching the tea on how incoming packets get sorted. no cap, it's a whole vibe. let's get into it 🫶

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✨ NAME ✨

iavf_get_rxnfc — the command to get RX flow classification rules 💖

like, it goes and asks "hey bestie, what flow rules do we have going on in here?" and comes back with the answers. periodt.

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🎀 SYNOPSIS 🎀

int iavf_get_rxnfc (struct net_device *netdev, struct ethtool_rxnfc *cmd, u32 *rule_locs);

that's the whole signature, bestie — three little arguments, one int coming back. she's compact, she's efficient, she's giving main character energy 🔥

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🌸 ARGUMENTS 🌸

• netdev — the network interface device structure. this is the whole device vibe check, the thing that represents your network interface. she's the main character of the network stack, fr fr 🦋
• cmd — the ethtool rxnfc command. this is the actual request you're asking for, the instructions, the "what do you want to know" energy. it's giving very much the group-chat question 🌈
• rule_locs — a pointer to store rule locations. so like, you hand it a place to put the locations and it fills that in. it's the "here's a lil basket, put the rule locations in it" moment 🧚

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⭐ RETURN ⭐

• 0 on success — slay, it worked 💅
• -EOPNOTSUPP if the command is not supported. which, okay, sometimes the vibe is just not there, and that's what this means. no drama, just not supported 🙈

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💜 SEE ALSO 💜

okay this is the part where the page goes full "let me introduce you to my entire friend group" energy 😭 and honestly? iconic behaviour. here's the whole crew:

Kernel file ./drivers/net/ethernet/intel/iavf/iavf_ethtool.c — where all this magic lives, bestie, go read it if you want the lore 💖

and the struct/functions:

• iavf_stats(9)
• iavf_add_one_ethtool_stat(9)
• __iavf_add_ethtool_stats(9)
• iavf_add_ethtool_stats(9)
• iavf_add_queue_stats(9)
• __iavf_add_stat_strings(9)
• iavf_add_stat_strings(9)
• iavf_get_link_ksettings(9)
• iavf_get_sset_count(9)
• iavf_get_ethtool_stats(9)
• iavf_get_stat_strings(9)
• iavf_get_strings(9)
• iavf_get_msglevel(9)
• iavf_set_msglevel(9)
• iavf_get_drvinfo(9)
• iavf_get_ringparam(9)
• iavf_set_ringparam(9)
• __iavf_get_coalesce(9)
• iavf_get_coalesce(9)
• iavf_get_per_queue_coalesce(9)
• iavf_set_itr_per_queue(9)
• __iavf_set_coalesce(9)
• iavf_set_coalesce(9)
• iavf_set_per_queue_coalesce(9)
• iavf_fltr_to_ethtool_flow(9)
• iavf_ethtool_flow_to_fltr(9)
• iavf_is_mask_valid(9)
• iavf_parse_rx_flow_user_data(9)
• iavf_fill_rx_flow_ext_data(9)
• iavf_get_ethtool_fdir_entry(9)
• iavf_get_fdir_fltr_ids(9)
• iavf_add_fdir_fltr_info(9)
• iavf_add_fdir_ethtool(9)
• iavf_del_fdir_ethtool(9)
• iavf_set_rxnfc(9)
• iavf_get_rx_ring_count(9)
• iavf_get_channels(9)
• iavf_set_channels(9)
• iavf_get_rxfh_key_size(9)
• iavf_get_rxfh_indir_size(9)
• iavf_get_rxfh(9)
• iavf_set_rxfh(9)
• iavf_set_ethtool_ops(9)

like, look at that roster. that's a whole friend group right there 🫶💖

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quick vibe note: the page lives in ./drivers/net/ethernet/intel/iavf, and this whole thing is dated October 2026. source/version vibes: iavf_get_rxnfc(9). okay that's the sign-off bestie, mwah 💋✨🌸