STRUCT STA_AMPDU_MLM(9)                     Internals                     STRUCT STA_AMPDU_MLM(9)



NAME
       struct_sta_ampdu_mlme - STA aggregation information.

SYNOPSIS
       struct sta_ampdu_mlme {
         struct mutex mtx;
         struct tid_ampdu_rx __rcu * tid_rx[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 agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
         struct work_struct work;
         struct tid_ampdu_tx __rcu * 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
       mtx
           mutex to protect all TX data (except non-NULL assignments to tid_tx[idx], which are
           protected by the sta spinlock) tid_start_tx is also protected by sta->lock.

       tid_rx[IEEE80211_NUM_TIDS]
           aggregation info for Rx per TID -- RCU protected

       tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]
           bitmap indicating on which TIDs the RX timer expired until the work for it runs

       tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]
           bitmap indicating which BA sessions per TID the driver requested to close until the
           work for it runs

       agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]
           bitmap indicating which TID has a rx BA session open on

       work
           work struct for starting/stopping aggregation

       tid_tx[IEEE80211_NUM_TIDS]
           aggregation info for Tx per TID

       tid_start_tx[IEEE80211_NUM_TIDS]
           sessions where start was requested

       last_addba_req_time[IEEE80211_NUM_TIDS]
           timestamp of the last addBA request.

       addba_req_num[IEEE80211_NUM_TIDS]
           number of times addBA request has been sent.

       dialog_token_allocator
           dialog token enumerator for each new session;

AUTHOR
       Johannes Berg <johannes AT sipsolutions.net>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   STRUCT STA_AMPDU_MLM(9)