ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/mac80211/patches/subsys/371-mac80211-don-t-apply-flow-control-on-management-fram.patch b/package/kernel/mac80211/patches/subsys/371-mac80211-don-t-apply-flow-control-on-management-fram.patch
new file mode 100644
index 0000000..0d3b42f
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/371-mac80211-don-t-apply-flow-control-on-management-fram.patch
@@ -0,0 +1,60 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 19 Mar 2021 23:28:01 +0100
+Subject: [PATCH] mac80211: don't apply flow control on management frames
+
+In some cases (depending on the driver, but it's true e.g. for
+iwlwifi) we're using an internal TXQ for management packets,
+mostly to simplify the code and to have a place to queue them.
+However, it appears that in certain cases we can confuse the
+code and management frames are dropped, which is certainly not
+what we want.
+
+Short-circuit the processing of management frames. To keep the
+impact minimal, only put them on the frags queue and check the
+tid == management only for doing that and to skip the airtime
+fairness checks, if applicable.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -5,7 +5,7 @@
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014 Intel Mobile Communications GmbH
+- * Copyright (C) 2018-2020 Intel Corporation
++ * Copyright (C) 2018-2021 Intel Corporation
+ *
+ * Transmit and frame generation functions.
+ */
+@@ -1401,8 +1401,17 @@ static void ieee80211_txq_enqueue(struct
+ ieee80211_set_skb_enqueue_time(skb);
+
+ spin_lock_bh(&fq->lock);
+- fq_tin_enqueue(fq, tin, flow_idx, skb,
+- fq_skb_free_func);
++ /*
++ * For management frames, don't really apply codel etc.,
++ * we don't want to apply any shaping or anything we just
++ * want to simplify the driver API by having them on the
++ * txqi.
++ */
++ if (unlikely(txqi->txq.tid == IEEE80211_NUM_TIDS))
++ __skb_queue_tail(&txqi->frags, skb);
++ else
++ fq_tin_enqueue(fq, tin, flow_idx, skb,
++ fq_skb_free_func);
+ spin_unlock_bh(&fq->lock);
+ }
+
+@@ -3878,6 +3887,9 @@ bool ieee80211_txq_airtime_check(struct
+ if (!txq->sta)
+ return true;
+
++ if (unlikely(txq->tid == IEEE80211_NUM_TIDS))
++ return true;
++
+ sta = container_of(txq->sta, struct sta_info, sta);
+ if (atomic_read(&sta->airtime[txq->ac].aql_tx_pending) <
+ sta->airtime[txq->ac].aql_limit_low)