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authorSara Sharon <sara.sharon@intel.com>2018-09-05 08:06:10 +0300
committerJohannes Berg <johannes.berg@intel.com>2018-09-05 10:10:26 +0200
commitedba6bdad6fef787c0363e8a1e7d91e8d6a10129 (patch)
tree58b4146d4cf326f8373aae1965573b46f95e420a
parent0eeb2b674f05ccb5162a1d68c0b8ae81e25fd972 (diff)
downloadlinux-edba6bdad6fef787c0363e8a1e7d91e8d6a10129.tar.bz2
mac80211: allow AMSDU size limitation per-TID
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>
-rw-r--r--include/net/mac80211.h2
-rw-r--r--net/mac80211/tx.c4
2 files changed, 6 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index fe71cec8ba42..28da9e27ea70 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -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];
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 96b6c9b09bd2..42f44c33a133 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -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