1 files changed, 0 insertions, 124 deletions
diff --git a/package/kernel/mac80211/patches/subsys/354-mac80211-calculate-hash-for-fq-without-holding-fq-lo.patch b/package/kernel/mac80211/patches/subsys/354-mac80211-calculate-hash-for-fq-without-holding-fq-lo.patch
deleted file mode 100644
index 2b6d8ab525..0000000000
--- a/package/kernel/mac80211/patches/subsys/354-mac80211-calculate-hash-for-fq-without-holding-fq-lo.patch
+++ /dev/null
@@ -1,124 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sat, 16 Mar 2019 17:57:38 +0100
-Subject: [PATCH] mac80211: calculate hash for fq without holding fq->lock
- in itxq enqueue
-
-Reduces lock contention on enqueue/dequeue of iTXQ packets
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/include/net/fq_impl.h
-+++ b/include/net/fq_impl.h
-@@ -107,21 +107,23 @@ begin:
- 	return skb;
- }
- 
-+static u32 fq_flow_idx(struct fq *fq, struct sk_buff *skb)
-+{
-+	u32 hash = skb_get_hash_perturb(skb, fq->perturbation);
-+
-+	return reciprocal_scale(hash, fq->flows_cnt);
-+}
-+
- static struct fq_flow *fq_flow_classify(struct fq *fq,
--					struct fq_tin *tin,
-+					struct fq_tin *tin, u32 idx,
- 					struct sk_buff *skb,
- 					fq_flow_get_default_t get_default_func)
- {
- 	struct fq_flow *flow;
--	u32 hash;
--	u32 idx;
- 
- 	lockdep_assert_held(&fq->lock);
- 
--	hash = skb_get_hash_perturb(skb, fq->perturbation);
--	idx = reciprocal_scale(hash, fq->flows_cnt);
- 	flow = &fq->flows[idx];
--
- 	if (flow->tin && flow->tin != tin) {
- 		flow = get_default_func(fq, tin, idx, skb);
- 		tin->collisions++;
-@@ -153,7 +155,7 @@ static void fq_recalc_backlog(struct fq
- }
- 
- static void fq_tin_enqueue(struct fq *fq,
--			   struct fq_tin *tin,
-+			   struct fq_tin *tin, u32 idx,
- 			   struct sk_buff *skb,
- 			   fq_skb_free_t free_func,
- 			   fq_flow_get_default_t get_default_func)
-@@ -163,7 +165,7 @@ static void fq_tin_enqueue(struct fq *fq
- 
- 	lockdep_assert_held(&fq->lock);
- 
--	flow = fq_flow_classify(fq, tin, skb, get_default_func);
-+	flow = fq_flow_classify(fq, tin, idx, skb, get_default_func);
- 
- 	flow->tin = tin;
- 	flow->backlog += skb->len;
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -1390,11 +1390,15 @@ static void ieee80211_txq_enqueue(struct
- {
- 	struct fq *fq = &local->fq;
- 	struct fq_tin *tin = &txqi->tin;
-+	u32 flow_idx = fq_flow_idx(fq, skb);
- 
- 	ieee80211_set_skb_enqueue_time(skb);
--	fq_tin_enqueue(fq, tin, skb,
-+
-+	spin_lock_bh(&fq->lock);
-+	fq_tin_enqueue(fq, tin, flow_idx, skb,
- 		       fq_skb_free_func,
- 		       fq_flow_get_default_func);
-+	spin_unlock_bh(&fq->lock);
- }
- 
- static bool fq_vlan_filter_func(struct fq *fq, struct fq_tin *tin,
-@@ -1564,7 +1568,6 @@ static bool ieee80211_queue_skb(struct i
- 				struct sta_info *sta,
- 				struct sk_buff *skb)
- {
--	struct fq *fq = &local->fq;
- 	struct ieee80211_vif *vif;
- 	struct txq_info *txqi;
- 
-@@ -1582,9 +1585,7 @@ static bool ieee80211_queue_skb(struct i
- 	if (!txqi)
- 		return false;
- 
--	spin_lock_bh(&fq->lock);
- 	ieee80211_txq_enqueue(local, txqi, skb);
--	spin_unlock_bh(&fq->lock);
- 
- 	schedule_and_wake_txq(local, txqi);
- 
-@@ -3198,6 +3199,7 @@ static bool ieee80211_amsdu_aggregate(st
- 	u8 max_subframes = sta->sta.max_amsdu_subframes;
- 	int max_frags = local->hw.max_tx_fragments;
- 	int max_amsdu_len = sta->sta.max_amsdu_len;
-+	u32 flow_idx;
- 	int orig_truesize;
- 	__be16 len;
- 	void *data;
-@@ -3220,6 +3222,8 @@ static bool ieee80211_amsdu_aggregate(st
- 		max_amsdu_len = min_t(int, max_amsdu_len,
- 				      sta->sta.max_rc_amsdu_len);
- 
-+	flow_idx = fq_flow_idx(fq, skb);
-+
- 	spin_lock_bh(&fq->lock);
- 
- 	/* TODO: Ideally aggregation should be done on dequeue to remain
-@@ -3227,7 +3231,8 @@ static bool ieee80211_amsdu_aggregate(st
- 	 */
- 
- 	tin = &txqi->tin;
--	flow = fq_flow_classify(fq, tin, skb, fq_flow_get_default_func);
-+	flow = fq_flow_classify(fq, tin, flow_idx, skb,
-+				fq_flow_get_default_func);
- 	head = skb_peek_tail(&flow->queue);
- 	if (!head)
- 		goto unlock;