0126-ath9k-remove-patch-causing-stability-issues-with-powersave-devices-FS-176.patch

From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Fri, 30 Sep 2016 16:58:01 +0200
Subject: ath9k: remove patch causing stability issues with powersave devices (FS#176)

Signed-off-by: Felix Fietkau <nbd@nbd.name>

Backport of LEDE fc88eb3fdfce6d39b4c62158cf6f42605a360a1e

diff --git a/package/kernel/mac80211/patches/341-ath9k-release-PS-buffered-frames-as-A-MPDU-if-enable.patch b/package/kernel/mac80211/patches/341-ath9k-release-PS-buffered-frames-as-A-MPDU-if-enable.patch
deleted file mode 100644
index 1cc1667..0000000
--- a/package/kernel/mac80211/patches/341-ath9k-release-PS-buffered-frames-as-A-MPDU-if-enable.patch
+++ /dev/null
@@ -1,40 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sun, 28 Aug 2016 13:15:10 +0200
-Subject: [PATCH] ath9k: release PS buffered frames as A-MPDU if enabled
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -1660,10 +1660,11 @@ void ath9k_release_buffered_frames(struc
- 	struct ath_node *an = (struct ath_node *)sta->drv_priv;
- 	struct ath_txq *txq = sc->tx.uapsdq;
- 	struct ieee80211_tx_info *info;
-+	struct ath_frame_info *fi;
- 	struct list_head bf_q;
- 	struct ath_buf *bf_tail = NULL, *bf;
- 	int sent = 0;
--	int i;
-+	int n, i;
- 
- 	INIT_LIST_HEAD(&bf_q);
- 	for (i = 0; tids && nframes; i++, tids >>= 1) {
-@@ -1683,10 +1684,15 @@ void ath9k_release_buffered_frames(struc
- 			ath9k_set_moredata(sc, bf, true);
- 			list_add_tail(&bf->list, &bf_q);
- 			ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
--			if (bf_isampdu(bf)) {
-+			if (bf_isampdu(bf))
- 				ath_tx_addto_baw(sc, tid, bf);
--				bf->bf_state.bf_type &= ~BUF_AGGR;
-+			if (bf_isaggr(bf)) {
-+				fi = get_frame_info(bf->bf_mpdu);
-+				n = ath_compute_num_delims(sc, tid, bf,
-+							   fi->framelen, true);
-+				bf->bf_state.ndelim = n;
- 			}
-+
- 			if (bf_tail)
- 				bf_tail->bf_next = bf;
- 
diff --git a/package/kernel/mac80211/patches/341-ath9k-report-tx-status-on-EOSP.patch b/package/kernel/mac80211/patches/341-ath9k-report-tx-status-on-EOSP.patch
new file mode 100644
index 0000000..80a3074
--- /dev/null
+++ b/package/kernel/mac80211/patches/341-ath9k-report-tx-status-on-EOSP.patch
@@ -0,0 +1,19 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 28 Aug 2016 13:23:27 +0200
+Subject: [PATCH] ath9k: report tx status on EOSP
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -86,7 +86,8 @@ static void ath_tx_status(struct ieee802
+ 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ 	struct ieee80211_sta *sta = info->status.status_driver_data[0];
+ 
+-	if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
++	if (info->flags & (IEEE80211_TX_CTL_REQ_TX_STATUS |
++			   IEEE80211_TX_STATUS_EOSP)) {
+ 		ieee80211_tx_status(hw, skb);
+ 		return;
+ 	}
diff --git a/package/kernel/mac80211/patches/342-ath9k-fix-block-ack-window-tracking-issues.patch b/package/kernel/mac80211/patches/342-ath9k-fix-block-ack-window-tracking-issues.patch
new file mode 100644
index 0000000..fea147b
--- /dev/null
+++ b/package/kernel/mac80211/patches/342-ath9k-fix-block-ack-window-tracking-issues.patch
@@ -0,0 +1,114 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Tue, 30 Aug 2016 12:44:08 +0200
+Subject: [PATCH] ath9k: fix block-ack window tracking issues
+
+Ensure that a buffer gets tracked as part of the block-ack window as
+soon as it's dequeued from the tid for the first time. Ensure that
+double calls to ath_tx_addto_baw (e.g. on retransmission) don't cause
+any issues.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -62,7 +62,7 @@ static void ath_tx_rc_status(struct ath_
+ 			     struct ath_tx_status *ts, int nframes, int nbad,
+ 			     int txok);
+ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
+-			      int seqno);
++			      struct ath_buf *bf);
+ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
+ 					   struct ath_txq *txq,
+ 					   struct ath_atx_tid *tid,
+@@ -300,7 +300,7 @@ static void ath_tx_flush_tid(struct ath_
+ 		}
+ 
+ 		if (fi->baw_tracked) {
+-			ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
++			ath_tx_update_baw(sc, tid, bf);
+ 			sendbar = true;
+ 		}
+ 
+@@ -316,10 +316,15 @@ static void ath_tx_flush_tid(struct ath_
+ }
+ 
+ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
+-			      int seqno)
++			      struct ath_buf *bf)
+ {
++	struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
++	u16 seqno = bf->bf_state.seqno;
+ 	int index, cindex;
+ 
++	if (!fi->baw_tracked)
++		return;
++
+ 	index  = ATH_BA_INDEX(tid->seq_start, seqno);
+ 	cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
+ 
+@@ -340,6 +345,9 @@ static void ath_tx_addto_baw(struct ath_
+ 	u16 seqno = bf->bf_state.seqno;
+ 	int index, cindex;
+ 
++	if (fi->baw_tracked)
++		return;
++
+ 	index  = ATH_BA_INDEX(tid->seq_start, seqno);
+ 	cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
+ 	__set_bit(cindex, tid->tx_buf);
+@@ -616,7 +624,7 @@ static void ath_tx_complete_aggr(struct
+ 			 * complete the acked-ones/xretried ones; update
+ 			 * block-ack window
+ 			 */
+-			ath_tx_update_baw(sc, tid, seqno);
++			ath_tx_update_baw(sc, tid, bf);
+ 
+ 			if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
+ 				memcpy(tx_info->control.rates, rates, sizeof(rates));
+@@ -646,7 +654,7 @@ static void ath_tx_complete_aggr(struct
+ 				 * run out of tx buf.
+ 				 */
+ 				if (!tbf) {
+-					ath_tx_update_baw(sc, tid, seqno);
++					ath_tx_update_baw(sc, tid, bf);
+ 
+ 					ath_tx_complete_buf(sc, bf, txq,
+ 							    &bf_head, NULL, ts,
+@@ -986,11 +994,14 @@ ath_tx_get_tid_subframe(struct ath_softc
+ 
+ 			INIT_LIST_HEAD(&bf_head);
+ 			list_add(&bf->list, &bf_head);
+-			ath_tx_update_baw(sc, tid, seqno);
++			ath_tx_update_baw(sc, tid, bf);
+ 			ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
+ 			continue;
+ 		}
+ 
++		if (bf_isampdu(bf))
++			ath_tx_addto_baw(sc, tid, bf);
++
+ 		return bf;
+ 	}
+ 
+@@ -1048,8 +1059,6 @@ ath_tx_form_aggr(struct ath_softc *sc, s
+ 		bf->bf_next = NULL;
+ 
+ 		/* link buffers of this frame to the aggregate */
+-		if (!fi->baw_tracked)
+-			ath_tx_addto_baw(sc, tid, bf);
+ 		bf->bf_state.ndelim = ndelim;
+ 
+ 		list_add_tail(&bf->list, bf_q);
+@@ -1684,10 +1693,8 @@ void ath9k_release_buffered_frames(struc
+ 			ath9k_set_moredata(sc, bf, true);
+ 			list_add_tail(&bf->list, &bf_q);
+ 			ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
+-			if (bf_isampdu(bf)) {
+-				ath_tx_addto_baw(sc, tid, bf);
++			if (bf_isampdu(bf))
+ 				bf->bf_state.bf_type &= ~BUF_AGGR;
+-			}
+ 			if (bf_tail)
+ 				bf_tail->bf_next = bf;
+ 
diff --git a/package/kernel/mac80211/patches/342-ath9k-report-tx-status-on-EOSP.patch b/package/kernel/mac80211/patches/342-ath9k-report-tx-status-on-EOSP.patch
deleted file mode 100644
index 80a3074..0000000
--- a/package/kernel/mac80211/patches/342-ath9k-report-tx-status-on-EOSP.patch
+++ /dev/null
@@ -1,19 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sun, 28 Aug 2016 13:23:27 +0200
-Subject: [PATCH] ath9k: report tx status on EOSP
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -86,7 +86,8 @@ static void ath_tx_status(struct ieee802
- 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- 	struct ieee80211_sta *sta = info->status.status_driver_data[0];
- 
--	if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
-+	if (info->flags & (IEEE80211_TX_CTL_REQ_TX_STATUS |
-+			   IEEE80211_TX_STATUS_EOSP)) {
- 		ieee80211_tx_status(hw, skb);
- 		return;
- 	}
diff --git a/package/kernel/mac80211/patches/343-ath9k-fix-block-ack-window-tracking-issues.patch b/package/kernel/mac80211/patches/343-ath9k-fix-block-ack-window-tracking-issues.patch
deleted file mode 100644
index 007a8d7d..0000000
--- a/package/kernel/mac80211/patches/343-ath9k-fix-block-ack-window-tracking-issues.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Tue, 30 Aug 2016 12:44:08 +0200
-Subject: [PATCH] ath9k: fix block-ack window tracking issues
-
-Ensure that a buffer gets tracked as part of the block-ack window as
-soon as it's dequeued from the tid for the first time. Ensure that
-double calls to ath_tx_addto_baw (e.g. on retransmission) don't cause
-any issues.
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -62,7 +62,7 @@ static void ath_tx_rc_status(struct ath_
- 			     struct ath_tx_status *ts, int nframes, int nbad,
- 			     int txok);
- static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
--			      int seqno);
-+			      struct ath_buf *bf);
- static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
- 					   struct ath_txq *txq,
- 					   struct ath_atx_tid *tid,
-@@ -300,7 +300,7 @@ static void ath_tx_flush_tid(struct ath_
- 		}
- 
- 		if (fi->baw_tracked) {
--			ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
-+			ath_tx_update_baw(sc, tid, bf);
- 			sendbar = true;
- 		}
- 
-@@ -316,10 +316,15 @@ static void ath_tx_flush_tid(struct ath_
- }
- 
- static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
--			      int seqno)
-+			      struct ath_buf *bf)
- {
-+	struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
-+	u16 seqno = bf->bf_state.seqno;
- 	int index, cindex;
- 
-+	if (!fi->baw_tracked)
-+		return;
-+
- 	index  = ATH_BA_INDEX(tid->seq_start, seqno);
- 	cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
- 
-@@ -340,6 +345,9 @@ static void ath_tx_addto_baw(struct ath_
- 	u16 seqno = bf->bf_state.seqno;
- 	int index, cindex;
- 
-+	if (fi->baw_tracked)
-+		return;
-+
- 	index  = ATH_BA_INDEX(tid->seq_start, seqno);
- 	cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
- 	__set_bit(cindex, tid->tx_buf);
-@@ -616,7 +624,7 @@ static void ath_tx_complete_aggr(struct
- 			 * complete the acked-ones/xretried ones; update
- 			 * block-ack window
- 			 */
--			ath_tx_update_baw(sc, tid, seqno);
-+			ath_tx_update_baw(sc, tid, bf);
- 
- 			if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
- 				memcpy(tx_info->control.rates, rates, sizeof(rates));
-@@ -646,7 +654,7 @@ static void ath_tx_complete_aggr(struct
- 				 * run out of tx buf.
- 				 */
- 				if (!tbf) {
--					ath_tx_update_baw(sc, tid, seqno);
-+					ath_tx_update_baw(sc, tid, bf);
- 
- 					ath_tx_complete_buf(sc, bf, txq,
- 							    &bf_head, NULL, ts,
-@@ -986,11 +994,14 @@ ath_tx_get_tid_subframe(struct ath_softc
- 
- 			INIT_LIST_HEAD(&bf_head);
- 			list_add(&bf->list, &bf_head);
--			ath_tx_update_baw(sc, tid, seqno);
-+			ath_tx_update_baw(sc, tid, bf);
- 			ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
- 			continue;
- 		}
- 
-+		if (bf_isampdu(bf))
-+			ath_tx_addto_baw(sc, tid, bf);
-+
- 		return bf;
- 	}
- 
-@@ -1048,8 +1059,6 @@ ath_tx_form_aggr(struct ath_softc *sc, s
- 		bf->bf_next = NULL;
- 
- 		/* link buffers of this frame to the aggregate */
--		if (!fi->baw_tracked)
--			ath_tx_addto_baw(sc, tid, bf);
- 		bf->bf_state.ndelim = ndelim;
- 
- 		list_add_tail(&bf->list, bf_q);
-@@ -1685,8 +1694,6 @@ void ath9k_release_buffered_frames(struc
- 			ath9k_set_moredata(sc, bf, true);
- 			list_add_tail(&bf->list, &bf_q);
- 			ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
--			if (bf_isampdu(bf))
--				ath_tx_addto_baw(sc, tid, bf);
- 			if (bf_isaggr(bf)) {
- 				fi = get_frame_info(bf->bf_mpdu);
- 				n = ath_compute_num_delims(sc, tid, bf,
diff --git a/package/kernel/mac80211/patches/343-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch b/package/kernel/mac80211/patches/343-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch
new file mode 100644
index 0000000..3bbca22
--- /dev/null
+++ b/package/kernel/mac80211/patches/343-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch
@@ -0,0 +1,64 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Mon, 29 Aug 2016 23:25:18 +0300
+Subject: [PATCH] mac80211: send delBA on unexpected BlockAck data frames
+
+When we receive data frames with ACK policy BlockAck, send
+delBA as requested by the 802.11 spec. Since this would be
+happening for every frame inside an A-MPDU if it's really
+received outside a session, limit it to a single attempt.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/agg-rx.c
++++ b/net/mac80211/agg-rx.c
+@@ -388,8 +388,10 @@ void __ieee80211_start_rx_ba_session(str
+ 	}
+ 
+ end:
+-	if (status == WLAN_STATUS_SUCCESS)
++	if (status == WLAN_STATUS_SUCCESS) {
+ 		__set_bit(tid, sta->ampdu_mlme.agg_session_valid);
++		__clear_bit(tid, sta->ampdu_mlme.unexpected_agg);
++	}
+ 	mutex_unlock(&sta->ampdu_mlme.mtx);
+ 
+ end_no_lock:
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -1072,8 +1072,15 @@ static void ieee80211_rx_reorder_ampdu(s
+ 	tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
+ 
+ 	tid_agg_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
+-	if (!tid_agg_rx)
++	if (!tid_agg_rx) {
++		if (ack_policy == IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK &&
++		    !test_bit(tid, rx->sta->ampdu_mlme.agg_session_valid) &&
++		    !test_and_set_bit(tid, rx->sta->ampdu_mlme.unexpected_agg))
++			ieee80211_send_delba(rx->sdata, rx->sta->sta.addr, tid,
++					     WLAN_BACK_RECIPIENT,
++					     WLAN_REASON_QSTA_REQUIRE_SETUP);
+ 		goto dont_reorder;
++	}
+ 
+ 	/* qos null data frames are excluded */
+ 	if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC)))
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -230,6 +230,8 @@ struct tid_ampdu_rx {
+  * @tid_rx_stop_requested:  bitmap indicating which BA sessions per TID the
+  *	driver requested to close until the work for it runs
+  * @agg_session_valid: bitmap indicating which TID has a rx BA session open on
++ * @unexpected_agg: bitmap indicating which TID already sent a delBA due to
++ *	unexpected aggregation related frames outside a session
+  * @work: work struct for starting/stopping aggregation
+  * @tid_tx: aggregation info for Tx per TID
+  * @tid_start_tx: sessions where start was requested
+@@ -244,6 +246,7 @@ struct sta_ampdu_mlme {
+ 	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
+ 	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
+ 	unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
++	unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
+ 	/* tx */
+ 	struct work_struct work;
+ 	struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];
diff --git a/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch b/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch
new file mode 100644
index 0000000..c3d3118
--- /dev/null
+++ b/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch
@@ -0,0 +1,26 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Mon, 29 Aug 2016 23:25:19 +0300
+Subject: [PATCH] mac80211: send delBA on unexpected BlockAck Request
+
+If we don't have a BA session, send delBA, as requested by the
+IEEE 802.11 spec. Apply the same limit of sending such a delBA
+only once as in the previous patch.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2537,6 +2537,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_
+ 
+ 		tid = le16_to_cpu(bar_data.control) >> 12;
+ 
++		if (!test_bit(tid, rx->sta->ampdu_mlme.agg_session_valid) &&
++		    !test_and_set_bit(tid, rx->sta->ampdu_mlme.unexpected_agg))
++			ieee80211_send_delba(rx->sdata, rx->sta->sta.addr, tid,
++					     WLAN_BACK_RECIPIENT,
++					     WLAN_REASON_QSTA_REQUIRE_SETUP);
++
+ 		tid_agg_rx = rcu_dereference(rx->sta->ampdu_mlme.tid_rx[tid]);
+ 		if (!tid_agg_rx)
+ 			return RX_DROP_MONITOR;
diff --git a/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch b/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch
deleted file mode 100644
index 3bbca22..0000000
--- a/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-data-fram.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-From: Johannes Berg <johannes.berg@intel.com>
-Date: Mon, 29 Aug 2016 23:25:18 +0300
-Subject: [PATCH] mac80211: send delBA on unexpected BlockAck data frames
-
-When we receive data frames with ACK policy BlockAck, send
-delBA as requested by the 802.11 spec. Since this would be
-happening for every frame inside an A-MPDU if it's really
-received outside a session, limit it to a single attempt.
-
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
----
-
---- a/net/mac80211/agg-rx.c
-+++ b/net/mac80211/agg-rx.c
-@@ -388,8 +388,10 @@ void __ieee80211_start_rx_ba_session(str
- 	}
- 
- end:
--	if (status == WLAN_STATUS_SUCCESS)
-+	if (status == WLAN_STATUS_SUCCESS) {
- 		__set_bit(tid, sta->ampdu_mlme.agg_session_valid);
-+		__clear_bit(tid, sta->ampdu_mlme.unexpected_agg);
-+	}
- 	mutex_unlock(&sta->ampdu_mlme.mtx);
- 
- end_no_lock:
---- a/net/mac80211/rx.c
-+++ b/net/mac80211/rx.c
-@@ -1072,8 +1072,15 @@ static void ieee80211_rx_reorder_ampdu(s
- 	tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
- 
- 	tid_agg_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
--	if (!tid_agg_rx)
-+	if (!tid_agg_rx) {
-+		if (ack_policy == IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK &&
-+		    !test_bit(tid, rx->sta->ampdu_mlme.agg_session_valid) &&
-+		    !test_and_set_bit(tid, rx->sta->ampdu_mlme.unexpected_agg))
-+			ieee80211_send_delba(rx->sdata, rx->sta->sta.addr, tid,
-+					     WLAN_BACK_RECIPIENT,
-+					     WLAN_REASON_QSTA_REQUIRE_SETUP);
- 		goto dont_reorder;
-+	}
- 
- 	/* qos null data frames are excluded */
- 	if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC)))
---- a/net/mac80211/sta_info.h
-+++ b/net/mac80211/sta_info.h
-@@ -230,6 +230,8 @@ struct tid_ampdu_rx {
-  * @tid_rx_stop_requested:  bitmap indicating which BA sessions per TID the
-  *	driver requested to close until the work for it runs
-  * @agg_session_valid: bitmap indicating which TID has a rx BA session open on
-+ * @unexpected_agg: bitmap indicating which TID already sent a delBA due to
-+ *	unexpected aggregation related frames outside a session
-  * @work: work struct for starting/stopping aggregation
-  * @tid_tx: aggregation info for Tx per TID
-  * @tid_start_tx: sessions where start was requested
-@@ -244,6 +246,7 @@ struct sta_ampdu_mlme {
- 	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
- 	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
- 	unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
-+	unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
- 	/* tx */
- 	struct work_struct work;
- 	struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];
diff --git a/package/kernel/mac80211/patches/345-mac80211-Move-reorder-sensitive-TX-handlers-to-after.patch b/package/kernel/mac80211/patches/345-mac80211-Move-reorder-sensitive-TX-handlers-to-after.patch
new file mode 100644
index 0000000..aba1ff4
--- /dev/null
+++ b/package/kernel/mac80211/patches/345-mac80211-Move-reorder-sensitive-TX-handlers-to-after.patch
@@ -0,0 +1,478 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 4 Sep 2016 17:46:24 +0200
+Subject: [PATCH] mac80211: fix sequence number assignment for PS response
+ frames
+
+When using intermediate queues, sequence number allocation is deferred
+until dequeue. This doesn't work for PS response frames, which bypass
+those queues.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -38,6 +38,12 @@
+ #include "wme.h"
+ #include "rate.h"
+ 
++static int invoke_tx_handlers_late(struct ieee80211_tx_data *tx);
++static bool ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
++				       struct sta_info *sta, u8 pn_offs,
++				       struct ieee80211_key_conf *key_conf,
++				       struct sk_buff *skb);
++
+ /* misc utils */
+ 
+ static inline void ieee80211_tx_stats(struct net_device *dev, u32 len)
+@@ -849,8 +855,7 @@ ieee80211_tx_h_sequence(struct ieee80211
+ 	tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
+ 	tx->sta->tx_stats.msdu[tid]++;
+ 
+-	if (!tx->sta->sta.txq[0])
+-		hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid);
++	hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid);
+ 
+ 	return TX_CONTINUE;
+ }
+@@ -1398,6 +1403,7 @@ void ieee80211_txq_init(struct ieee80211
+ 	fq_tin_init(&txqi->tin);
+ 	fq_flow_init(&txqi->def_flow);
+ 	codel_vars_init(&txqi->def_cvars);
++	__skb_queue_head_init(&txqi->frags);
+ 
+ 	txqi->txq.vif = &sdata->vif;
+ 
+@@ -1420,6 +1426,7 @@ void ieee80211_txq_purge(struct ieee8021
+ 	struct fq_tin *tin = &txqi->tin;
+ 
+ 	fq_tin_reset(fq, tin, fq_skb_free_func);
++	ieee80211_purge_tx_queue(&local->hw, &txqi->frags);
+ }
+ 
+ int ieee80211_txq_setup_flows(struct ieee80211_local *local)
+@@ -1476,12 +1483,19 @@ struct sk_buff *ieee80211_tx_dequeue(str
+ 	struct sk_buff *skb = NULL;
+ 	struct fq *fq = &local->fq;
+ 	struct fq_tin *tin = &txqi->tin;
++	struct ieee80211_tx_info *info;
+ 
+ 	spin_lock_bh(&fq->lock);
+ 
+ 	if (test_bit(IEEE80211_TXQ_STOP, &txqi->flags))
+ 		goto out;
+ 
++	/* Make sure fragments stay together. */
++	skb = __skb_dequeue(&txqi->frags);
++	if (skb)
++		goto out;
++
++begin:
+ 	skb = fq_tin_dequeue(fq, tin, fq_tin_dequeue_func);
+ 	if (!skb)
+ 		goto out;
+@@ -1489,16 +1503,38 @@ struct sk_buff *ieee80211_tx_dequeue(str
+ 	ieee80211_set_skb_vif(skb, txqi);
+ 
+ 	hdr = (struct ieee80211_hdr *)skb->data;
+-	if (txq->sta && ieee80211_is_data_qos(hdr->frame_control)) {
++	info = IEEE80211_SKB_CB(skb);
++	if (txq->sta && info->control.flags & IEEE80211_TX_CTRL_FAST_XMIT) {
+ 		struct sta_info *sta = container_of(txq->sta, struct sta_info,
+ 						    sta);
+-		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++		u8 pn_offs = 0;
+ 
+-		hdr->seq_ctrl = ieee80211_tx_next_seq(sta, txq->tid);
+-		if (test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags))
+-			info->flags |= IEEE80211_TX_CTL_AMPDU;
+-		else
+-			info->flags &= ~IEEE80211_TX_CTL_AMPDU;
++		if (info->control.hw_key)
++			pn_offs = ieee80211_padded_hdrlen(hw, hdr->frame_control);
++
++		ieee80211_xmit_fast_finish(sta->sdata, sta, pn_offs,
++					   info->control.hw_key, skb);
++	} else {
++		struct ieee80211_tx_data tx = { };
++
++		__skb_queue_head_init(&tx.skbs);
++		tx.local = local;
++		tx.skb = skb;
++		tx.hdrlen = ieee80211_padded_hdrlen(hw, hdr->frame_control);
++		if (txq->sta) {
++			tx.sta = container_of(txq->sta, struct sta_info, sta);
++			tx.sdata = tx.sta->sdata;
++		} else {
++			tx.sdata = vif_to_sdata(info->control.vif);
++		}
++
++		if (invoke_tx_handlers_late(&tx))
++			goto begin;
++
++		skb = __skb_dequeue(&tx.skbs);
++
++		if (!skb_queue_empty(&tx.skbs))
++			skb_queue_splice_tail(&tx.skbs, &txqi->frags);
+ 	}
+ 
+ out:
+@@ -1512,6 +1548,47 @@ out:
+ }
+ EXPORT_SYMBOL(ieee80211_tx_dequeue);
+ 
++static bool ieee80211_queue_skb(struct ieee80211_local *local,
++				struct ieee80211_sub_if_data *sdata,
++				struct sta_info *sta,
++				struct sk_buff *skb)
++{
++	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++	struct fq *fq = &local->fq;
++	struct ieee80211_vif *vif;
++	struct txq_info *txqi;
++	struct ieee80211_sta *pubsta;
++
++	if (!local->ops->wake_tx_queue ||
++	    sdata->vif.type == NL80211_IFTYPE_MONITOR)
++		return false;
++
++	if (sta && sta->uploaded)
++		pubsta = &sta->sta;
++	else
++		pubsta = NULL;
++
++	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++		sdata = container_of(sdata->bss,
++				     struct ieee80211_sub_if_data, u.ap);
++
++	vif = &sdata->vif;
++	txqi = ieee80211_get_txq(local, vif, pubsta, skb);
++
++	if (!txqi)
++		return false;
++
++	info->control.vif = vif;
++
++	spin_lock_bh(&fq->lock);
++	ieee80211_txq_enqueue(local, txqi, skb);
++	spin_unlock_bh(&fq->lock);
++
++	drv_wake_tx_queue(local, txqi);
++
++	return true;
++}
++
+ static bool ieee80211_tx_frags(struct ieee80211_local *local,
+ 			       struct ieee80211_vif *vif,
+ 			       struct ieee80211_sta *sta,
+@@ -1519,9 +1596,7 @@ static bool ieee80211_tx_frags(struct ie
+ 			       bool txpending)
+ {
+ 	struct ieee80211_tx_control control = {};
+-	struct fq *fq = &local->fq;
+ 	struct sk_buff *skb, *tmp;
+-	struct txq_info *txqi;
+ 	unsigned long flags;
+ 
+ 	skb_queue_walk_safe(skbs, skb, tmp) {
+@@ -1536,21 +1611,6 @@ static bool ieee80211_tx_frags(struct ie
+ 		}
+ #endif
+ 
+-		txqi = ieee80211_get_txq(local, vif, sta, skb);
+-		if (txqi) {
+-			info->control.vif = vif;
+-
+-			__skb_unlink(skb, skbs);
+-
+-			spin_lock_bh(&fq->lock);
+-			ieee80211_txq_enqueue(local, txqi, skb);
+-			spin_unlock_bh(&fq->lock);
+-
+-			drv_wake_tx_queue(local, txqi);
+-
+-			continue;
+-		}
+-
+ 		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ 		if (local->queue_stop_reasons[q] ||
+ 		    (!txpending && !skb_queue_empty(&local->pending[q]))) {
+@@ -1671,10 +1731,13 @@ static bool __ieee80211_tx(struct ieee80
+ /*
+  * Invoke TX handlers, return 0 on success and non-zero if the
+  * frame was dropped or queued.
++ *
++ * The handlers are split into an early and late part. The latter is everything
++ * that can be sensitive to reordering, and will be deferred to after packets
++ * are dequeued from the intermediate queues (when they are enabled).
+  */
+-static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
++static int invoke_tx_handlers_early(struct ieee80211_tx_data *tx)
+ {
+-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+ 	ieee80211_tx_result res = TX_DROP;
+ 
+ #define CALL_TXH(txh) \
+@@ -1688,16 +1751,42 @@ static int invoke_tx_handlers(struct iee
+ 	CALL_TXH(ieee80211_tx_h_check_assoc);
+ 	CALL_TXH(ieee80211_tx_h_ps_buf);
+ 	CALL_TXH(ieee80211_tx_h_check_control_port_protocol);
+-	CALL_TXH(ieee80211_tx_h_select_key);
++
+ 	if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL))
+ 		CALL_TXH(ieee80211_tx_h_rate_ctrl);
+ 
++ txh_done:
++	if (unlikely(res == TX_DROP)) {
++		I802_DEBUG_INC(tx->local->tx_handlers_drop);
++		if (tx->skb)
++			ieee80211_free_txskb(&tx->local->hw, tx->skb);
++		else
++			ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs);
++		return -1;
++	} else if (unlikely(res == TX_QUEUED)) {
++		I802_DEBUG_INC(tx->local->tx_handlers_queued);
++		return -1;
++	}
++
++	return 0;
++}
++
++/*
++ * Late handlers can be called while the sta lock is held. Handlers that can
++ * cause packets to be generated will cause deadlock!
++ */
++static int invoke_tx_handlers_late(struct ieee80211_tx_data *tx)
++{
++	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
++	ieee80211_tx_result res = TX_CONTINUE;
++
+ 	if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION)) {
+ 		__skb_queue_tail(&tx->skbs, tx->skb);
+ 		tx->skb = NULL;
+ 		goto txh_done;
+ 	}
+ 
++	CALL_TXH(ieee80211_tx_h_select_key);
+ 	CALL_TXH(ieee80211_tx_h_michael_mic_add);
+ 	CALL_TXH(ieee80211_tx_h_sequence);
+ 	CALL_TXH(ieee80211_tx_h_fragment);
+@@ -1724,6 +1813,15 @@ static int invoke_tx_handlers(struct iee
+ 	return 0;
+ }
+ 
++static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
++{
++	int r = invoke_tx_handlers_early(tx);
++	if (r)
++		return r;
++
++	return invoke_tx_handlers_late(tx);
++}
++
+ bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
+ 			      struct ieee80211_vif *vif, struct sk_buff *skb,
+ 			      int band, struct ieee80211_sta **sta)
+@@ -1798,7 +1896,13 @@ static bool ieee80211_tx(struct ieee8021
+ 		info->hw_queue =
+ 			sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
+ 
+-	if (!invoke_tx_handlers(&tx))
++	if (invoke_tx_handlers_early(&tx))
++		return false;
++
++	if (ieee80211_queue_skb(local, sdata, tx.sta, tx.skb))
++		return true;
++
++	if (!invoke_tx_handlers_late(&tx))
+ 		result = __ieee80211_tx(local, &tx.skbs, led_len,
+ 					tx.sta, txpending);
+ 
+@@ -3181,7 +3285,7 @@ out:
+ }
+ 
+ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
+-				struct net_device *dev, struct sta_info *sta,
++				struct sta_info *sta,
+ 				struct ieee80211_fast_tx *fast_tx,
+ 				struct sk_buff *skb)
+ {
+@@ -3192,9 +3296,9 @@ static bool ieee80211_xmit_fast(struct i
+ 	struct ethhdr eth;
+ 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ 	struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
+-	struct ieee80211_tx_data tx;
+-	ieee80211_tx_result r;
+ 	struct tid_ampdu_tx *tid_tx = NULL;
++	ieee80211_tx_result r;
++	struct ieee80211_tx_data tx;
+ 	u8 tid = IEEE80211_NUM_TIDS;
+ 
+ 	/* control port protocol needs a lot of special handling */
+@@ -3232,8 +3336,6 @@ static bool ieee80211_xmit_fast(struct i
+ 			return true;
+ 	}
+ 
+-	ieee80211_tx_stats(dev, skb->len + extra_head);
+-
+ 	if ((hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) &&
+ 	    ieee80211_amsdu_aggregate(sdata, sta, fast_tx, skb))
+ 		return true;
+@@ -3262,24 +3364,7 @@ static bool ieee80211_xmit_fast(struct i
+ 	info->flags = IEEE80211_TX_CTL_FIRST_FRAGMENT |
+ 		      IEEE80211_TX_CTL_DONTFRAG |
+ 		      (tid_tx ? IEEE80211_TX_CTL_AMPDU : 0);
+-
+-	if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
+-		*ieee80211_get_qos_ctl(hdr) = tid;
+-		if (!sta->sta.txq[0])
+-			hdr->seq_ctrl = ieee80211_tx_next_seq(sta, tid);
+-	} else {
+-		info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+-		hdr->seq_ctrl = cpu_to_le16(sdata->sequence_number);
+-		sdata->sequence_number += 0x10;
+-	}
+-
+-	if (skb_shinfo(skb)->gso_size)
+-		sta->tx_stats.msdu[tid] +=
+-			DIV_ROUND_UP(skb->len, skb_shinfo(skb)->gso_size);
+-	else
+-		sta->tx_stats.msdu[tid]++;
+-
+-	info->hw_queue = sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
++	info->control.flags = IEEE80211_TX_CTRL_FAST_XMIT;
+ 
+ 	__skb_queue_head_init(&tx.skbs);
+ 
+@@ -3305,22 +3390,71 @@ static bool ieee80211_xmit_fast(struct i
+ 		}
+ 	}
+ 
++	if (ieee80211_queue_skb(local, sdata, sta, skb))
++		return true;
++
++	ieee80211_xmit_fast_finish(sdata, sta, fast_tx->pn_offs,
++				   &fast_tx->key->conf, skb);
++
++	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++		sdata = container_of(sdata->bss,
++				     struct ieee80211_sub_if_data, u.ap);
++
++	__skb_queue_tail(&tx.skbs, skb);
++	ieee80211_tx_frags(local, &sdata->vif, &sta->sta, &tx.skbs, false);
++
++	return true;
++}
++
++/*
++ * Can be called while the sta lock is held. Anything that can cause packets to
++ * be generated will cause deadlock!
++ */
++static bool ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
++				       struct sta_info *sta, u8 pn_offs,
++				       struct ieee80211_key_conf *key_conf,
++				       struct sk_buff *skb)
++{
++	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++	struct ieee80211_hdr *hdr = (void *)skb->data;
++	u8 tid = IEEE80211_NUM_TIDS;
++
++	ieee80211_tx_stats(skb->dev, skb->len);
++
++	if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
++		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
++		*ieee80211_get_qos_ctl(hdr) = tid;
++		hdr->seq_ctrl = ieee80211_tx_next_seq(sta, tid);
++	} else {
++		info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
++		hdr->seq_ctrl = cpu_to_le16(sdata->sequence_number);
++		sdata->sequence_number += 0x10;
++	}
++
++	if (skb_shinfo(skb)->gso_size)
++		sta->tx_stats.msdu[tid] +=
++			DIV_ROUND_UP(skb->len, skb_shinfo(skb)->gso_size);
++	else
++		sta->tx_stats.msdu[tid]++;
++
++	info->hw_queue = sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
++
+ 	/* statistics normally done by ieee80211_tx_h_stats (but that
+ 	 * has to consider fragmentation, so is more complex)
+ 	 */
+ 	sta->tx_stats.bytes[skb_get_queue_mapping(skb)] += skb->len;
+ 	sta->tx_stats.packets[skb_get_queue_mapping(skb)]++;
+ 
+-	if (fast_tx->pn_offs) {
++	if (pn_offs && (key_conf->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+ 		u64 pn;
+-		u8 *crypto_hdr = skb->data + fast_tx->pn_offs;
++		u8 *crypto_hdr = skb->data + pn_offs;
+ 
+-		switch (fast_tx->key->conf.cipher) {
++		switch (key_conf->cipher) {
+ 		case WLAN_CIPHER_SUITE_CCMP:
+ 		case WLAN_CIPHER_SUITE_CCMP_256:
+ 		case WLAN_CIPHER_SUITE_GCMP:
+ 		case WLAN_CIPHER_SUITE_GCMP_256:
+-			pn = atomic64_inc_return(&fast_tx->key->conf.tx_pn);
++			pn = atomic64_inc_return(&key_conf->tx_pn);
+ 			crypto_hdr[0] = pn;
+ 			crypto_hdr[1] = pn >> 8;
+ 			crypto_hdr[4] = pn >> 16;
+@@ -3331,12 +3465,6 @@ static bool ieee80211_xmit_fast(struct i
+ 		}
+ 	}
+ 
+-	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+-		sdata = container_of(sdata->bss,
+-				     struct ieee80211_sub_if_data, u.ap);
+-
+-	__skb_queue_tail(&tx.skbs, skb);
+-	ieee80211_tx_frags(local, &sdata->vif, &sta->sta, &tx.skbs, false);
+ 	return true;
+ }
+ 
+@@ -3364,7 +3492,7 @@ void __ieee80211_subif_start_xmit(struct
+ 		fast_tx = rcu_dereference(sta->fast_tx);
+ 
+ 		if (fast_tx &&
+-		    ieee80211_xmit_fast(sdata, dev, sta, fast_tx, skb))
++		    ieee80211_xmit_fast(sdata, sta, fast_tx, skb))
+ 			goto out;
+ 	}
+ 
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -715,6 +715,7 @@ enum mac80211_tx_info_flags {
+  *	frame (PS-Poll or uAPSD).
+  * @IEEE80211_TX_CTRL_RATE_INJECT: This frame is injected with rate information
+  * @IEEE80211_TX_CTRL_AMSDU: This frame is an A-MSDU frame
++ * @IEEE80211_TX_CTRL_FAST_XMIT: This frame is going through the fast_xmit path
+  *
+  * These flags are used in tx_info->control.flags.
+  */
+@@ -723,6 +724,7 @@ enum mac80211_tx_control_flags {
+ 	IEEE80211_TX_CTRL_PS_RESPONSE		= BIT(1),
+ 	IEEE80211_TX_CTRL_RATE_INJECT		= BIT(2),
+ 	IEEE80211_TX_CTRL_AMSDU			= BIT(3),
++	IEEE80211_TX_CTRL_FAST_XMIT		= BIT(4),
+ };
+ 
+ /*
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -814,11 +814,13 @@ enum txq_info_flags {
+  * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
+  *	a fq_flow which is already owned by a different tin
+  * @def_cvars: codel vars for @def_flow
++ * @frags: used to keep fragments created after dequeue
+  */
+ struct txq_info {
+ 	struct fq_tin tin;
+ 	struct fq_flow def_flow;
+ 	struct codel_vars def_cvars;
++	struct sk_buff_head frags;
+ 	unsigned long flags;
+ 
+ 	/* keep last! */
diff --git a/package/kernel/mac80211/patches/345-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch b/package/kernel/mac80211/patches/345-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch
deleted file mode 100644
index c3d3118..0000000