1 files changed, 88 insertions, 57 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index bd93d823cc25..5e1f57c7ee1b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5012,24 +5012,23 @@ fwd_queue_err:
 	return err;
 }
 
-static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter)
+static int ixgbe_upper_dev_walk(struct net_device *upper, void *data)
 {
-	struct net_device *upper;
-	struct list_head *iter;
-	int err;
-
-	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
-		if (netif_is_macvlan(upper)) {
-			struct macvlan_dev *dfwd = netdev_priv(upper);
-			struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv;
+	if (netif_is_macvlan(upper)) {
+		struct macvlan_dev *dfwd = netdev_priv(upper);
+		struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv;
 
-			if (dfwd->fwd_priv) {
-				err = ixgbe_fwd_ring_up(upper, vadapter);
-				if (err)
-					continue;
-			}
-		}
+		if (dfwd->fwd_priv)
+			ixgbe_fwd_ring_up(upper, vadapter);
 	}
+
+	return 0;
+}
+
+static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter)
+{
+	netdev_walk_all_upper_dev_rcu(adapter->netdev,
+				      ixgbe_upper_dev_walk, NULL);
 }
 
 static void ixgbe_configure(struct ixgbe_adapter *adapter)
@@ -5448,12 +5447,25 @@ static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter)
 	spin_unlock(&adapter->fdir_perfect_lock);
 }
 
+static int ixgbe_disable_macvlan(struct net_device *upper, void *data)
+{
+	if (netif_is_macvlan(upper)) {
+		struct macvlan_dev *vlan = netdev_priv(upper);
+
+		if (vlan->fwd_priv) {
+			netif_tx_stop_all_queues(upper);
+			netif_carrier_off(upper);
+			netif_tx_disable(upper);
+		}
+	}
+
+	return 0;
+}
+
 void ixgbe_down(struct ixgbe_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	struct ixgbe_hw *hw = &adapter->hw;
-	struct net_device *upper;
-	struct list_head *iter;
 	int i;
 
 	/* signal that we are down to the interrupt handler */
@@ -5477,17 +5489,8 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 	netif_tx_disable(netdev);
 
 	/* disable any upper devices */
-	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
-		if (netif_is_macvlan(upper)) {
-			struct macvlan_dev *vlan = netdev_priv(upper);
-
-			if (vlan->fwd_priv) {
-				netif_tx_stop_all_queues(upper);
-				netif_carrier_off(upper);
-				netif_tx_disable(upper);
-			}
-		}
-	}
+	netdev_walk_all_upper_dev_rcu(adapter->netdev,
+				      ixgbe_disable_macvlan, NULL);
 
 	ixgbe_irq_disable(adapter);
 
@@ -6049,11 +6052,6 @@ static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter)
 static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
-
-	/* MTU < 68 is an error and causes problems on some kernels */
-	if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
-		return -EINVAL;
 
 	/*
 	 * For 82599EB we cannot allow legacy VFs to enable their receive
@@ -6062,7 +6060,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
 	 */
 	if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
 	    (adapter->hw.mac.type == ixgbe_mac_82599EB) &&
-	    (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
+	    (new_mtu > ETH_DATA_LEN))
 		e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n");
 
 	e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu);
@@ -6728,6 +6726,18 @@ static void ixgbe_update_default_up(struct ixgbe_adapter *adapter)
 #endif
 }
 
+static int ixgbe_enable_macvlan(struct net_device *upper, void *data)
+{
+	if (netif_is_macvlan(upper)) {
+		struct macvlan_dev *vlan = netdev_priv(upper);
+
+		if (vlan->fwd_priv)
+			netif_tx_wake_all_queues(upper);
+	}
+
+	return 0;
+}
+
 /**
  * ixgbe_watchdog_link_is_up - update netif_carrier status and
  *                             print link up message
@@ -6737,8 +6747,6 @@ static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	struct ixgbe_hw *hw = &adapter->hw;
-	struct net_device *upper;
-	struct list_head *iter;
 	u32 link_speed = adapter->link_speed;
 	const char *speed_str;
 	bool flow_rx, flow_tx;
@@ -6809,14 +6817,8 @@ static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
 
 	/* enable any upper devices */
 	rtnl_lock();
-	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
-		if (netif_is_macvlan(upper)) {
-			struct macvlan_dev *vlan = netdev_priv(upper);
-
-			if (vlan->fwd_priv)
-				netif_tx_wake_all_queues(upper);
-		}
-	}
+	netdev_walk_all_upper_dev_rcu(adapter->netdev,
+				      ixgbe_enable_macvlan, NULL);
 	rtnl_unlock();
 
 	/* update the default user priority for VFs */
@@ -8350,12 +8352,38 @@ static int ixgbe_configure_clsu32_del_hnode(struct ixgbe_adapter *adapter,
 }
 
 #ifdef CONFIG_NET_CLS_ACT
+struct upper_walk_data {
+	struct ixgbe_adapter *adapter;
+	u64 action;
+	int ifindex;
+	u8 queue;
+};
+
+static int get_macvlan_queue(struct net_device *upper, void *_data)
+{
+	if (netif_is_macvlan(upper)) {
+		struct macvlan_dev *dfwd = netdev_priv(upper);
+		struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv;
+		struct upper_walk_data *data = _data;
+		struct ixgbe_adapter *adapter = data->adapter;
+		int ifindex = data->ifindex;
+
+		if (vadapter && vadapter->netdev->ifindex == ifindex) {
+			data->queue = adapter->rx_ring[vadapter->rx_base_queue]->reg_idx;
+			data->action = data->queue;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
 static int handle_redirect_action(struct ixgbe_adapter *adapter, int ifindex,
 				  u8 *queue, u64 *action)
 {
 	unsigned int num_vfs = adapter->num_vfs, vf;
+	struct upper_walk_data data;
 	struct net_device *upper;
-	struct list_head *iter;
 
 	/* redirect to a SRIOV VF */
 	for (vf = 0; vf < num_vfs; ++vf) {
@@ -8373,17 +8401,16 @@ static int handle_redirect_action(struct ixgbe_adapter *adapter, int ifindex,
 	}
 
 	/* redirect to a offloaded macvlan netdev */
-	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
-		if (netif_is_macvlan(upper)) {
-			struct macvlan_dev *dfwd = netdev_priv(upper);
-			struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv;
-
-			if (vadapter && vadapter->netdev->ifindex == ifindex) {
-				*queue = adapter->rx_ring[vadapter->rx_base_queue]->reg_idx;
-				*action = *queue;
-				return 0;
-			}
-		}
+	data.adapter = adapter;
+	data.ifindex = ifindex;
+	data.action = 0;
+	data.queue = 0;
+	if (netdev_walk_all_upper_dev_rcu(adapter->netdev,
+					  get_macvlan_queue, &data)) {
+		*action = data.action;
+		*queue = data.queue;
+
+		return 0;
 	}
 
 	return -EINVAL;
@@ -8410,7 +8437,7 @@ static int parse_tc_actions(struct ixgbe_adapter *adapter,
 		}
 
 		/* Redirect to a VF or a offloaded macvlan */
-		if (is_tcf_mirred_redirect(a)) {
+		if (is_tcf_mirred_egress_redirect(a)) {
 			int ifindex = tcf_mirred_ifindex(a);
 
 			err = handle_redirect_action(adapter, ifindex, queue,
@@ -9612,6 +9639,10 @@ skip_sriov:
 	netdev->priv_flags |= IFF_UNICAST_FLT;
 	netdev->priv_flags |= IFF_SUPP_NOFCS;
 
+	/* MTU range: 68 - 9710 */
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = IXGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
+
 #ifdef CONFIG_IXGBE_DCB
 	if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE)
 		netdev->dcbnl_ops = &dcbnl_ops;