STRUCT STA_AMPDU_MLME(9)

NAME 💖

okay bestie, welcome to the struct sta_ampdu_mlme(9) page — yes, that's the manual name, and it's literally the main character here. struct sta_ampdu_mlme — STA aggregation information. That's the whole name line, no cap.

✨ SYNOPSIS ✨

here's the struct, copied exactly, because code is sacred and we do not mess with it:

       struct sta_ampdu_mlme {
           struct tid_ampdu_rx *tid_rx[IEEE80211_NUM_TIDS];
           u8 tid_rx_token[IEEE80211_NUM_TIDS];
           unsigned long
       tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
           unsigned long
       tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
           unsigned long tid_rx_manage_offl[BITS_TO_LONGS(2 *
       IEEE80211_NUM_TIDS)];
           unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
           unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
           struct wiphy_work work;
           struct tid_ampdu_tx *tid_tx[IEEE80211_NUM_TIDS];
           struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS];
           unsigned long last_addba_req_time[IEEE80211_NUM_TIDS];
           u8 addba_req_num[IEEE80211_NUM_TIDS];
           u8 dialog_token_allocator;
        };

🌸 Members 🌸

okay member-by-member, and yes every single one is here:

• tid_rx — the aggregation info for Rx per TID — and bestie, it's RCU protected, so mind the vibes.
• tid_rx_token — dialog tokens for valid aggregation sessions. iconic little tokens.
• tid_rx_timer_expired — a bitmap indicating on which TIDs the RX timer expired until the work for it runs.
• tid_rx_stop_requested — a bitmap indicating which BA sessions per TID the driver requested to close until the work for it runs.
• tid_rx_manage_offl — a bitmap indicating which BA sessions were requested to be treated as started/stopped due to offloading.
• agg_session_valid — a bitmap indicating which TID has a rx BA session open on.
• unexpected_agg — a bitmap indicating which TID already sent a delBA due to unexpected aggregation related frames outside a session.
• work — work struct for starting/stopping aggregation.
• tid_tx — aggregation info for Tx per TID.
• tid_start_tx — sessions where start was requested, not just protected by wiphy mutex but also sta->lock.
• last_addba_req_time — timestamp of the last addBA request.
• addba_req_num — number of times addBA request has been sent.
• dialog_token_allocator — dialog token enumerator for each new session;

🌈 SEE ALSO 🌈

go look at these besties, they're all right here:

• Kernel file ./net/mac80211/sta_info.h
• enum ieee80211_sta_info_flags(9)
• struct tid_ampdu_tx(9)
• struct tid_ampdu_rx(9)
• struct ieee80211_fast_tx(9)
• struct ieee80211_fast_rx(9)
• struct mesh_sta(9)
• struct link_sta_info(9)
• struct ieee80211_sta_removed_link_stats(9)
• struct sta_info(9)
• __sta_info_flush(9)
• sta_info_flush(9)

mwah 💅 — source/version ./net/mac80211, date October 2026, page struct sta_ampdu_mlme(9). 🫶