ath11k_cfr_c...te_and_relay(9)

💅 ath11k_cfr_correlate_and_relay — the Kernel API Manual moment 🎀

okay so bestie, this is a page straight out of the Kernel API Manual, and it's genuinely iconic: ath11k_cfr_correlate_and_relay is the function that plays matchmaker for CFR events. she matches, she relays, she does NOT let orphan events just sit there. periodt. ✨

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🌸 NAME 🌸

ath11k_cfr_correlate_and_relay — correlate and relay CFR events, no cap 🫶

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✨ SYNOPSIS ✨

enum ath11k_cfr_correlate_status ath11k_cfr_correlate_and_relay (struct
ath11k *ar , struct ath11k_look_up_table *lut , u8 event_type );

like yes, she takes three things and gives you back a status. main character energy fr fr 💅

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🦋 ARGUMENTS 🦋

• ar — Pointer to ath11k structure. the whole ath11k vibe lives here 🏠
• lut — Lookup table for correlation. this is the little matchmaking directory she consults 👀
• event_type — Type of event received (TX or DBR). she needs to know which flavor of event just walked in 🚪

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💖 DESCRIPTION 💖

so what she actually does: she correlates WMI_PDEV_DMA_RING_BUF_RELEASE_EVENT (that's DBR) with WMI_PEER_CFR_CAPTURE_EVENT (that's TX capture) by PPDU ID. yup, PPDU ID matchmaking, it's giving dating app but for kernel events 😭💘

If both events are present and the PPDU IDs match, she returns CORRELATE_STATUS_RELEASE to relay the correlated data to userspace. slay — the data gets to go to the party 🎉🔥

Otherwise she returns CORRELATE_STATUS_HOLD to wait for the other event. not ghosting, just… waiting for her other half to show up 🙈

She also checks pending DBR events and clears them when no corresponding TX capture event is received for the PPDU. so yes, she cleans up after herself — no stale event buildup, we love a tidy queen 👑✨

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⭐ RETURN ⭐

CORRELATE_STATUS_RELEASE or CORRELATE_STATUS_HOLD — that's it, that's the whole answer 🎀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/wireless/ath/ath11k/cfr.c 💜

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ngl if you're poking at CFR correlation, go read that cfr.c file — she's the whole source of truth, bestie 🍓

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and that's the page!! brought to you by the fine folks at ./drivers/net/wireless/ath/ath11k, dated October 2026 — go off, kernel docs, you ate 💅✨🦋