ENUM EFX_TC_EM_PSEUDO_TYPE(9)

💖 enum efx_tc_em_pseudo_type(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this one is a lil enum from the sfc driver and it's lowkey the glue that keeps your encap matches from stepping on each other. let's get into it 🫶

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🌸 NAME 🌸

enum efx_tc_em_pseudo_type — the pseudo type of a &struct efx_tc_encap_match, iykyk 💅

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✨ SYNOPSIS ✨

enum efx_tc_em_pseudo_type {
    EFX_TC_EM_DIRECT ,
    EFX_TC_EM_PSEUDO_MASK ,
    EFX_TC_EM_PSEUDO_OR

};

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🎀 Constants 🎀

three constants, no more no less, and each one is a whole personality 🔥

• EFX_TC_EM_DIRECT — this one is the real deal: an actual HW entry in the Outer Rule table, not a pseudo. so the hardware index sitting in struct efx_tc_encap_match.fw_id is valid 👑 no cap.
• EFX_TC_EM_PSEUDO_MASK — registered by an encap match that includes a match on an optional field (currently ip_tos and/or udp_sport), and its whole job is to prevent an overlapping encap match _without_ optional fields 😤 it's giving bouncer at the club fr fr. here's the tea tho: the pseudo encap match may be referenced again by an encap match with different values for these fields — but all masks must match the first (stored in our child_* fields). periodt 💅
• EFX_TC_EM_PSEUDO_OR — registered by an fLHS rule that fits in the OR table 🌈 the struct efx_tc_lhs_rule already holds the HW OR entry, so that's handled. and heads up: only one reference to this encap match may exist 🚨 like, one (1) singular reference. don't be greedy.

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🦋 Description 🦋

so what are these even for? they're used to classify "pseudo" encap matches — and a pseudo encap match is one that doesn't refer to an entry in hardware. instead, it indicates that a section of the match space is in use by another Outer Rule. it's not a real HW entry, it's a little sign that says "occupied bestie, move along" 🙈✨

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🔍 SEE ALSO 🔍

• Kernel file ./drivers/net/ethernet/sfc/tc.h
• struct efx_tc_mac_pedit_action(9)
• struct efx_tc_action_set(9)
• struct efx_tc_state(9)

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and that's the whole page, bestie!! 🎀 this icon came to you from ./drivers/net/ethernet/sfc and it's stamped October 2026 — go forth and pseudo-match responsibly 💜🦋