mac80211: introduce aql_enable node in debugfs
Introduce aql_enable node in debugfs in order to enable/disable aql.
This is useful for debugging purpose.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/e7a934d5d84e4796c4f97ea5de4e66c824296b07.1610214851.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4553618..d626e68 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3811,6 +3811,8 @@ void __ieee80211_schedule_txq(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL(__ieee80211_schedule_txq);
+DEFINE_STATIC_KEY_FALSE(aql_disable);
+
bool ieee80211_txq_airtime_check(struct ieee80211_hw *hw,
struct ieee80211_txq *txq)
{
@@ -3820,6 +3822,9 @@ bool ieee80211_txq_airtime_check(struct ieee80211_hw *hw,
if (!wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL))
return true;
+ if (static_branch_unlikely(&aql_disable))
+ return true;
+
if (!txq->sta)
return true;