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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 68 insertions, 31 deletions

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index a21080028c54..9d61bb157189 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1865,15 +1865,13 @@ static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar,
 	return 0;
 }
 
-/*
- * Frames sent to the FW have to be in "Native Wifi" format.
- * Strip the QoS field from the 802.11 header.
+/* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
+ * Control in the header.
  */
-static void ath10k_tx_h_qos_workaround(struct ieee80211_hw *hw,
-				       struct ieee80211_tx_control *control,
-				       struct sk_buff *skb)
+static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (void *)skb->data;
+	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
 	u8 *qos_ctl;
 
 	if (!ieee80211_is_data_qos(hdr->frame_control))
@@ -1883,6 +1881,16 @@ static void ath10k_tx_h_qos_workaround(struct ieee80211_hw *hw,
 	memmove(skb->data + IEEE80211_QOS_CTL_LEN,
 		skb->data, (void *)qos_ctl - (void *)skb->data);
 	skb_pull(skb, IEEE80211_QOS_CTL_LEN);
+
+	/* Fw/Hw generates a corrupted QoS Control Field for QoS NullFunc
+	 * frames. Powersave is handled by the fw/hw so QoS NyllFunc frames are
+	 * used only for CQM purposes (e.g. hostapd station keepalive ping) so
+	 * it is safe to downgrade to NullFunc.
+	 */
+	if (ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+		hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
+		cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
+	}
 }
 
 static void ath10k_tx_wep_key_work(struct work_struct *work)
@@ -1919,14 +1927,13 @@ unlock:
 	mutex_unlock(&arvif->ar->conf_mutex);
 }
 
-static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
+static void ath10k_tx_h_update_wep_key(struct ieee80211_vif *vif,
+				       struct ieee80211_key_conf *key,
+				       struct sk_buff *skb)
 {
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_vif *vif = info->control.vif;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
 	struct ath10k *ar = arvif->ar;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct ieee80211_key_conf *key = info->control.hw_key;
 
 	if (!ieee80211_has_protected(hdr->frame_control))
 		return;
@@ -1948,11 +1955,11 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	ieee80211_queue_work(ar->hw, &arvif->wep_key_work);
 }
 
-static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar, struct sk_buff *skb)
+static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
+				       struct ieee80211_vif *vif,
+				       struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_vif *vif = info->control.vif;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
 
 	/* This is case only for P2P_GO */
@@ -2254,33 +2261,28 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 		      struct ieee80211_tx_control *control,
 		      struct sk_buff *skb)
 {
+	struct ath10k *ar = hw->priv;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ieee80211_key_conf *key = info->control.hw_key;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct ath10k *ar = hw->priv;
-	u8 tid, vdev_id;
 
 	/* We should disable CCK RATE due to P2P */
 	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
 		ath10k_dbg(ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
 
-	/* we must calculate tid before we apply qos workaround
-	 * as we'd lose the qos control field */
-	tid = ath10k_tx_h_get_tid(hdr);
-	vdev_id = ath10k_tx_h_get_vdev_id(ar, info);
+	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
+	ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
+	ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, info);
 
 	/* it makes no sense to process injected frames like that */
-	if (info->control.vif &&
-	    info->control.vif->type != NL80211_IFTYPE_MONITOR) {
-		ath10k_tx_h_qos_workaround(hw, control, skb);
-		ath10k_tx_h_update_wep_key(skb);
-		ath10k_tx_h_add_p2p_noa_ie(ar, skb);
-		ath10k_tx_h_seq_no(skb);
+	if (vif && vif->type != NL80211_IFTYPE_MONITOR) {
+		ath10k_tx_h_nwifi(hw, skb);
+		ath10k_tx_h_update_wep_key(vif, key, skb);
+		ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
+		ath10k_tx_h_seq_no(vif, skb);
 	}
 
-	ATH10K_SKB_CB(skb)->vdev_id = vdev_id;
-	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
-	ATH10K_SKB_CB(skb)->htt.tid = tid;
-
 	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
 		spin_lock_bh(&ar->data_lock);
 		ATH10K_SKB_CB(skb)->htt.is_offchan = true;
@@ -3137,10 +3139,11 @@ exit:
 
 static int ath10k_hw_scan(struct ieee80211_hw *hw,
 			  struct ieee80211_vif *vif,
-			  struct cfg80211_scan_request *req)
+			  struct ieee80211_scan_request *hw_req)
 {
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct cfg80211_scan_request *req = &hw_req->req;
 	struct wmi_start_scan_arg arg;
 	int ret = 0;
 	int i;
@@ -4330,6 +4333,38 @@ static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	return 0;
 }
 
+static int ath10k_ampdu_action(struct ieee80211_hw *hw,
+			       struct ieee80211_vif *vif,
+			       enum ieee80211_ampdu_mlme_action action,
+			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+			       u8 buf_size)
+{
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
+		   arvif->vdev_id, sta->addr, tid, action);
+
+	switch (action) {
+	case IEEE80211_AMPDU_RX_START:
+	case IEEE80211_AMPDU_RX_STOP:
+		/* HTT AddBa/DelBa events trigger mac80211 Rx BA session
+		 * creation/removal. Do we need to verify this?
+		 */
+		return 0;
+	case IEEE80211_AMPDU_TX_START:
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
+		/* Firmware offloads Tx aggregation entirely so deny mac80211
+		 * Tx aggregation requests.
+		 */
+		return -EOPNOTSUPP;
+	}
+
+	return -EINVAL;
+}
+
 static const struct ieee80211_ops ath10k_ops = {
 	.tx				= ath10k_tx,
 	.start				= ath10k_start,
@@ -4357,6 +4392,7 @@ static const struct ieee80211_ops ath10k_ops = {
 	.set_bitrate_mask		= ath10k_set_bitrate_mask,
 	.sta_rc_update			= ath10k_sta_rc_update,
 	.get_tsf			= ath10k_get_tsf,
+	.ampdu_action			= ath10k_ampdu_action,
 #ifdef CONFIG_PM
 	.suspend			= ath10k_suspend,
 	.resume				= ath10k_resume,
@@ -4697,7 +4733,6 @@ int ath10k_mac_register(struct ath10k *ar)
 
 	ar->hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_AP);
 
 	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
@@ -4767,6 +4802,8 @@ int ath10k_mac_register(struct ath10k *ar)
 		ar->hw->wiphy->iface_combinations = ath10k_if_comb;
 		ar->hw->wiphy->n_iface_combinations =
 			ARRAY_SIZE(ath10k_if_comb);
+
+		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
 	}
 
 	ar->hw->netdev_features = NETIF_F_HW_CSUM;