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-rw-r--r--package/kernel/mac80211/patches/subsys/315-mac80211-check-and-refresh-aggregation-session-in-en.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/315-mac80211-check-and-refresh-aggregation-session-in-en.patch b/package/kernel/mac80211/patches/subsys/315-mac80211-check-and-refresh-aggregation-session-in-en.patch
new file mode 100644
index 0000000000..e411d59722
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/315-mac80211-check-and-refresh-aggregation-session-in-en.patch
@@ -0,0 +1,45 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 17 Aug 2020 21:11:25 +0200
+Subject: [PATCH] mac80211: check and refresh aggregation session in
+ encap offload tx
+
+Update the last_tx timestamp to avoid tearing down the aggregation session
+early. Fall back to the slow path if the session setup is still running
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -4189,6 +4189,8 @@ static void ieee80211_8023_xmit(struct i
+ bool authorized = false;
+ bool multicast;
+ unsigned char *ra = ehdr->h_dest;
++ struct tid_ampdu_tx *tid_tx;
++ u8 tid;
+
+ if (IS_ERR(sta) || (sta && !sta->uploaded))
+ sta = NULL;
+@@ -4226,6 +4228,22 @@ static void ieee80211_8023_xmit(struct i
+
+ memset(info, 0, sizeof(*info));
+
++ if (sta) {
++ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
++ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
++ if (tid_tx) {
++ if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state)) {
++ /* fall back to non-offload slow path */
++ __ieee80211_subif_start_xmit(skb, dev, 0, 0, NULL);
++ return;
++ }
++
++ info->flags |= IEEE80211_TX_CTL_AMPDU;
++ if (tid_tx->timeout)
++ tid_tx->last_tx = jiffies;
++ }
++ }
++
+ if (unlikely(!multicast && skb->sk &&
+ skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
+ info->ack_frame_id = ieee80211_store_ack_skb(local, skb,