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mac80211: allow AMSDU size limitation per-TID

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Some drivers may have AMSDU size limitation per TID, due to
HW constrains. Add an option to set this limit.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Sara Sharon 2018-09-05 08:06:10 +03:00 committed by Johannes Berg
parent 0eeb2b674f
commit edba6bdad6
2 changed files with 6 additions and 0 deletions
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2
include/net/mac80211.h
View File

@ -1853,6 +1853,7 @@ struct ieee80211_sta_rates {
* unlimited.
* @support_p2p_ps: indicates whether the STA supports P2P PS mechanism or not.
* @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control.
* @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID
* @txq: per-TID data TX queues (if driver uses the TXQ abstraction); note that
* the last entry (%IEEE80211_NUM_TIDS) is used for non-data frames
*/
@ -1894,6 +1895,7 @@ struct ieee80211_sta {
u16 max_amsdu_len;
bool support_p2p_ps;
u16 max_rc_amsdu_len;
u16 max_tid_amsdu_len[IEEE80211_NUM_TIDS];
struct ieee80211_txq *txq[IEEE80211_NUM_TIDS + 1];

4
net/mac80211/tx.c
View File

@ -3225,6 +3225,10 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
max_amsdu_len = min_t(int, max_amsdu_len,
sta->sta.max_rc_amsdu_len);
if (sta->sta.max_tid_amsdu_len[tid])
max_amsdu_len = min_t(int, max_amsdu_len,
sta->sta.max_tid_amsdu_len[tid]);
spin_lock_bh(&fq->lock);
/* TODO: Ideally aggregation should be done on dequeue to remain