Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Make allocations less aggressive in x_tables, from Minchal Hocko.

 2) Fix netfilter flowtable Kconfig deps, from Pablo Neira Ayuso.

 3) Fix connection loss problems in rtlwifi, from Larry Finger.

 4) Correct DRAM dump length for some chips in ath10k driver, from Yu
    Wang.

 5) Fix ABORT handling in rxrpc, from David Howells.

 6) Add SPDX tags to Sun networking drivers, from Shannon Nelson.

 7) Some ipv6 onlink handling fixes, from David Ahern.

 8) Netem packet scheduler interval calcualtion fix from Md. Islam.

 9) Don't put crypto buffers on-stack in rxrpc, from David Howells.

10) Fix handling of error non-delivery status in netlink multicast
    delivery over multiple namespaces, from Nicolas Dichtel.

11) Missing xdp flush in tuntap driver, from Jason Wang.

12) Synchonize RDS protocol netns/module teardown with rds object
    management, from Sowini Varadhan.

13) Add nospec annotations to mpls, from Dan Williams.

14) Fix SKB truesize handling in TIPC, from Hoang Le.

15) Interrupt masking fixes in stammc from Niklas Cassel.

16) Don't allow ptr_ring objects to be sized outside of kmalloc's
    limits, from Jason Wang.

17) Don't allow SCTP chunks to be built which will have a length
    exceeding the chunk header's 16-bit length field, from Alexey
    Kodanev.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (82 commits)
  ibmvnic: Remove skb->protocol checks in ibmvnic_xmit
  bpf: fix rlimit in reuseport net selftest
  sctp: verify size of a new chunk in _sctp_make_chunk()
  s390/qeth: fix SETIP command handling
  s390/qeth: fix underestimated count of buffer elements
  ptr_ring: try vmalloc() when kmalloc() fails
  ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
  net: stmmac: remove redundant enable of PMT irq
  net: stmmac: rename GMAC_INT_DEFAULT_MASK for dwmac4
  net: stmmac: discard disabled flags in interrupt status register
  ibmvnic: Reset long term map ID counter
  tools/libbpf: handle issues with bpf ELF objects containing .eh_frames
  selftests/bpf: add selftest that use test_libbpf_open
  selftests/bpf: add test program for loading BPF ELF files
  tools/libbpf: improve the pr_debug statements to contain section numbers
  bpf: Sync kernel ABI header with tooling header for bpf_common.h
  net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT
  net: thunder: change q_len's type to handle max ring size
  tipc: fix skb truesize/datasize ratio control
  net/sched: cls_u32: fix cls_u32 on filter replace
  ...

7 files changed, 117 insertions, 18 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/agg-rx.c b/drivers/net/wireless/mediatek/mt76/agg-rx.c
index 8027bb7c03c2..fcb208d1f276 100644
--- a/drivers/net/wireless/mediatek/mt76/agg-rx.c
+++ b/drivers/net/wireless/mediatek/mt76/agg-rx.c
@@ -98,6 +98,7 @@ mt76_rx_aggr_reorder_work(struct work_struct *work)
 					       reorder_work.work);
 	struct mt76_dev *dev = tid->dev;
 	struct sk_buff_head frames;
+	int nframes;
 
 	__skb_queue_head_init(&frames);
 
@@ -105,14 +106,44 @@ mt76_rx_aggr_reorder_work(struct work_struct *work)
 
 	spin_lock(&tid->lock);
 	mt76_rx_aggr_check_release(tid, &frames);
+	nframes = tid->nframes;
 	spin_unlock(&tid->lock);
 
-	ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work, REORDER_TIMEOUT);
+	if (nframes)
+		ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work,
+					     REORDER_TIMEOUT);
 	mt76_rx_complete(dev, &frames, -1);
 
 	local_bh_enable();
 }
 
+static void
+mt76_rx_aggr_check_ctl(struct sk_buff *skb, struct sk_buff_head *frames)
+{
+	struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;
+	struct ieee80211_bar *bar = (struct ieee80211_bar *) skb->data;
+	struct mt76_wcid *wcid = status->wcid;
+	struct mt76_rx_tid *tid;
+	u16 seqno;
+
+	if (!ieee80211_is_ctl(bar->frame_control))
+		return;
+
+	if (!ieee80211_is_back_req(bar->frame_control))
+		return;
+
+	status->tid = le16_to_cpu(bar->control) >> 12;
+	seqno = le16_to_cpu(bar->start_seq_num) >> 4;
+	tid = rcu_dereference(wcid->aggr[status->tid]);
+	if (!tid)
+		return;
+
+	spin_lock_bh(&tid->lock);
+	mt76_rx_aggr_release_frames(tid, frames, seqno);
+	mt76_rx_aggr_release_head(tid, frames);
+	spin_unlock_bh(&tid->lock);
+}
+
 void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames)
 {
 	struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;
@@ -126,9 +157,14 @@ void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames)
 	__skb_queue_tail(frames, skb);
 
 	sta = wcid_to_sta(wcid);
-	if (!sta || !status->aggr)
+	if (!sta)
 		return;
 
+	if (!status->aggr) {
+		mt76_rx_aggr_check_ctl(skb, frames);
+		return;
+	}
+
 	tid = rcu_dereference(wcid->aggr[status->tid]);
 	if (!tid)
 		return;
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 5fcb2deb89a2..85f8d324ebf8 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -276,6 +276,7 @@ int mt76_register_device(struct mt76_dev *dev, bool vht,
 	ieee80211_hw_set(hw, TX_AMSDU);
 	ieee80211_hw_set(hw, TX_FRAG_LIST);
 	ieee80211_hw_set(hw, MFP_CAPABLE);
+	ieee80211_hw_set(hw, AP_LINK_PS);
 
 	wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 
@@ -470,6 +471,53 @@ mt76_check_ccmp_pn(struct sk_buff *skb)
 	return 0;
 }
 
+static void
+mt76_check_ps(struct mt76_dev *dev, struct sk_buff *skb)
+{
+	struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_sta *sta;
+	struct mt76_wcid *wcid = status->wcid;
+	bool ps;
+
+	if (!wcid || !wcid->sta)
+		return;
+
+	sta = container_of((void *) wcid, struct ieee80211_sta, drv_priv);
+
+	if (!test_bit(MT_WCID_FLAG_CHECK_PS, &wcid->flags))
+		return;
+
+	if (ieee80211_is_pspoll(hdr->frame_control)) {
+		ieee80211_sta_pspoll(sta);
+		return;
+	}
+
+	if (ieee80211_has_morefrags(hdr->frame_control) ||
+		!(ieee80211_is_mgmt(hdr->frame_control) ||
+		  ieee80211_is_data(hdr->frame_control)))
+		return;
+
+	ps = ieee80211_has_pm(hdr->frame_control);
+
+	if (ps && (ieee80211_is_data_qos(hdr->frame_control) ||
+		   ieee80211_is_qos_nullfunc(hdr->frame_control)))
+		ieee80211_sta_uapsd_trigger(sta, status->tid);
+
+	if (!!test_bit(MT_WCID_FLAG_PS, &wcid->flags) == ps)
+		return;
+
+	if (ps) {
+		set_bit(MT_WCID_FLAG_PS, &wcid->flags);
+		mt76_stop_tx_queues(dev, sta, true);
+	} else {
+		clear_bit(MT_WCID_FLAG_PS, &wcid->flags);
+	}
+
+	ieee80211_sta_ps_transition(sta, ps);
+	dev->drv->sta_ps(dev, sta, ps);
+}
+
 void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
 		      int queue)
 {
@@ -498,8 +546,10 @@ void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q)
 
 	__skb_queue_head_init(&frames);
 
-	while ((skb = __skb_dequeue(&dev->rx_skb[q])) != NULL)
+	while ((skb = __skb_dequeue(&dev->rx_skb[q])) != NULL) {
+		mt76_check_ps(dev, skb);
 		mt76_rx_aggr_reorder(skb, &frames);
+	}
 
 	mt76_rx_complete(dev, &frames, q);
 }
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 129015c9d116..d2ce15093edd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -121,11 +121,18 @@ struct mt76_queue_ops {
 	void (*kick)(struct mt76_dev *dev, struct mt76_queue *q);
 };
 
+enum mt76_wcid_flags {
+	MT_WCID_FLAG_CHECK_PS,
+	MT_WCID_FLAG_PS,
+};
+
 struct mt76_wcid {
 	struct mt76_rx_tid __rcu *aggr[IEEE80211_NUM_TIDS];
 
 	struct work_struct aggr_work;
 
+	unsigned long flags;
+
 	u8 idx;
 	u8 hw_key_idx;
 
@@ -206,6 +213,9 @@ struct mt76_driver_ops {
 		       struct sk_buff *skb);
 
 	void (*rx_poll_complete)(struct mt76_dev *dev, enum mt76_rxq_id q);
+
+	void (*sta_ps)(struct mt76_dev *dev, struct ieee80211_sta *sta,
+		       bool ps);
 };
 
 struct mt76_channel_state {
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2.h b/drivers/net/wireless/mediatek/mt76/mt76x2.h
index 17df17afd9bf..e62131b88102 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2.h
@@ -218,6 +218,8 @@ void mt76x2_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q);
 void mt76x2_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 			 struct sk_buff *skb);
 
+void mt76x2_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
+
 void mt76x2_update_channel(struct mt76_dev *mdev);
 
 s8 mt76x2_tx_get_max_txpwr_adj(struct mt76x2_dev *dev,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c
index 1b00ae4465a2..9dbf94947324 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c
@@ -630,6 +630,7 @@ struct mt76x2_dev *mt76x2_alloc_device(struct device *pdev)
 		.tx_complete_skb = mt76x2_tx_complete_skb,
 		.rx_skb = mt76x2_queue_rx_skb,
 		.rx_poll_complete = mt76x2_rx_poll_complete,
+		.sta_ps = mt76x2_sta_ps,
 	};
 	struct ieee80211_hw *hw;
 	struct mt76x2_dev *dev;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c
index 6c30b5eaa9ca..7ea3d841918e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c
@@ -341,7 +341,7 @@ int mt76x2_mac_process_rx(struct mt76x2_dev *dev, struct sk_buff *skb,
 
 	mt76x2_remove_hdr_pad(skb, pad_len);
 
-	if (rxinfo & MT_RXINFO_BA)
+	if ((rxinfo & MT_RXINFO_BA) && !(rxinfo & MT_RXINFO_NULL))
 		status->aggr = true;
 
 	if (WARN_ON_ONCE(len > skb->len))
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
index bf26284b9989..205043b470b2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
@@ -282,6 +282,9 @@ mt76x2_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
 		mt76x2_txq_init(dev, sta->txq[i]);
 
+	if (vif->type == NL80211_IFTYPE_AP)
+		set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
+
 	rcu_assign_pointer(dev->wcid[idx], &msta->wcid);
 
 out:
@@ -311,23 +314,14 @@ mt76x2_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	return 0;
 }
 
-static void
-mt76x2_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		  enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
+void
+mt76x2_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
 {
 	struct mt76x2_sta *msta = (struct mt76x2_sta *) sta->drv_priv;
-	struct mt76x2_dev *dev = hw->priv;
+	struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
 	int idx = msta->wcid.idx;
 
-	switch (cmd) {
-	case STA_NOTIFY_SLEEP:
-		mt76x2_mac_wcid_set_drop(dev, idx, true);
-		mt76_stop_tx_queues(&dev->mt76, sta, true);
-		break;
-	case STA_NOTIFY_AWAKE:
-		mt76x2_mac_wcid_set_drop(dev, idx, false);
-		break;
-	}
+	mt76x2_mac_wcid_set_drop(dev, idx, ps);
 }
 
 static int
@@ -549,6 +543,12 @@ static void mt76x2_set_coverage_class(struct ieee80211_hw *hw,
 	mutex_unlock(&dev->mutex);
 }
 
+static int
+mt76x2_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
+{
+	return 0;
+}
+
 const struct ieee80211_ops mt76x2_ops = {
 	.tx = mt76x2_tx,
 	.start = mt76x2_start,
@@ -560,7 +560,6 @@ const struct ieee80211_ops mt76x2_ops = {
 	.bss_info_changed = mt76x2_bss_info_changed,
 	.sta_add = mt76x2_sta_add,
 	.sta_remove = mt76x2_sta_remove,
-	.sta_notify = mt76x2_sta_notify,
 	.set_key = mt76x2_set_key,
 	.conf_tx = mt76x2_conf_tx,
 	.sw_scan_start = mt76x2_sw_scan,
@@ -573,5 +572,6 @@ const struct ieee80211_ops mt76x2_ops = {
 	.release_buffered_frames = mt76_release_buffered_frames,
 	.set_coverage_class = mt76x2_set_coverage_class,
 	.get_survey = mt76_get_survey,
+	.set_tim = mt76x2_set_tim,
 };