From c981e4213e9d2d4ec79501bd607722ec712742a2 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:06 +0100
Subject: net: add netif_is_team_master helper

Similar to other helpers, caller can use this to find out if device is
team master.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index fcbc5259c630..2b889be65d88 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1273,6 +1273,7 @@ struct net_device_ops {
  * @IFF_NO_QUEUE: device can run without qdisc attached
  * @IFF_OPENVSWITCH: device is a Open vSwitch master
  * @IFF_L3MDEV_SLAVE: device is enslaved to an L3 master device
+ * @IFF_TEAM: device is a team device
  */
 enum netdev_priv_flags {
 	IFF_802_1Q_VLAN			= 1<<0,
@@ -1299,6 +1300,7 @@ enum netdev_priv_flags {
 	IFF_NO_QUEUE			= 1<<21,
 	IFF_OPENVSWITCH			= 1<<22,
 	IFF_L3MDEV_SLAVE		= 1<<23,
+	IFF_TEAM			= 1<<24,
 };
 
 #define IFF_802_1Q_VLAN			IFF_802_1Q_VLAN
@@ -1325,6 +1327,7 @@ enum netdev_priv_flags {
 #define IFF_NO_QUEUE			IFF_NO_QUEUE
 #define IFF_OPENVSWITCH			IFF_OPENVSWITCH
 #define IFF_L3MDEV_SLAVE		IFF_L3MDEV_SLAVE
+#define IFF_TEAM			IFF_TEAM
 
 /**
  *	struct net_device - The DEVICE structure.
@@ -3889,6 +3892,11 @@ static inline bool netif_is_ovs_master(const struct net_device *dev)
 	return dev->priv_flags & IFF_OPENVSWITCH;
 }
 
+static inline bool netif_is_team_master(struct net_device *dev)
+{
+	return dev->priv_flags & IFF_TEAM;
+}
+
 /* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
 static inline void netif_keep_dst(struct net_device *dev)
 {
-- 
cgit v1.3-18-gd494


From f7f019ee6d117de5007d0b10e7960696bbf111eb Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:07 +0100
Subject: net: add netif_is_team_port helper

Similar to other helpers, caller can use this to find out if device is
team port.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2b889be65d88..b3601f8a9b42 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3897,6 +3897,11 @@ static inline bool netif_is_team_master(struct net_device *dev)
 	return dev->priv_flags & IFF_TEAM;
 }
 
+static inline bool netif_is_team_port(struct net_device *dev)
+{
+	return dev->priv_flags & IFF_TEAM_PORT;
+}
+
 /* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
 static inline void netif_keep_dst(struct net_device *dev)
 {
-- 
cgit v1.3-18-gd494


From 7be61833042e7757745345eedc7b0efee240c189 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:08 +0100
Subject: net: add netif_is_lag_master helper

Some code does not mind if the master is bond or team and treats them
the same, as generic LAG.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b3601f8a9b42..3ca083efa560 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3902,6 +3902,11 @@ static inline bool netif_is_team_port(struct net_device *dev)
 	return dev->priv_flags & IFF_TEAM_PORT;
 }
 
+static inline bool netif_is_lag_master(struct net_device *dev)
+{
+	return netif_is_bond_master(dev) || netif_is_team_master(dev);
+}
+
 /* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
 static inline void netif_keep_dst(struct net_device *dev)
 {
-- 
cgit v1.3-18-gd494


From e0ba1414f310c83bf425fe26fa2cd5f1befcd6dc Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:09 +0100
Subject: net: add netif_is_lag_port helper

Some code does not mind if a device is bond slave or team port and treats
them the same, as generic LAG ports.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3ca083efa560..1506be58c59a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3907,6 +3907,11 @@ static inline bool netif_is_lag_master(struct net_device *dev)
 	return netif_is_bond_master(dev) || netif_is_team_master(dev);
 }
 
+static inline bool netif_is_lag_port(struct net_device *dev)
+{
+	return netif_is_bond_slave(dev) || netif_is_team_port(dev);
+}
+
 /* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
 static inline void netif_keep_dst(struct net_device *dev)
 {
-- 
cgit v1.3-18-gd494


From 6dffb0447c25476f499d205dfceb1972e8dae919 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:10 +0100
Subject: net: propagate upper priv via netdev_master_upper_dev_link

Eliminate netdev_master_upper_dev_link_private and pass priv directly as
a parameter of netdev_master_upper_dev_link.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c |  2 +-
 drivers/net/team/team.c         |  2 +-
 drivers/net/vrf.c               |  2 +-
 include/linux/netdevice.h       |  6 ++----
 net/batman-adv/hard-interface.c |  3 ++-
 net/bridge/br_if.c              |  2 +-
 net/core/dev.c                  | 18 ++++++------------
 net/openvswitch/vport-netdev.c  |  2 +-
 8 files changed, 15 insertions(+), 22 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 9e0f8a7ef8b1..924015729b2d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1204,7 +1204,7 @@ static int bond_master_upper_dev_link(struct net_device *bond_dev,
 {
 	int err;
 
-	err = netdev_master_upper_dev_link_private(slave_dev, bond_dev, slave);
+	err = netdev_master_upper_dev_link(slave_dev, bond_dev, slave);
 	if (err)
 		return err;
 	slave_dev->flags |= IFF_SLAVE;
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index d2f3ee832c47..b37f8d14dca0 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1083,7 +1083,7 @@ static int team_upper_dev_link(struct net_device *dev,
 {
 	int err;
 
-	err = netdev_master_upper_dev_link(port_dev, dev);
+	err = netdev_master_upper_dev_link(port_dev, dev, NULL);
 	if (err)
 		return err;
 	port_dev->priv_flags |= IFF_TEAM_PORT;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index c2d54c4ed556..59c5bddeaedd 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -624,7 +624,7 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
 		goto out_fail;
 	}
 
-	ret = netdev_master_upper_dev_link(port_dev, dev);
+	ret = netdev_master_upper_dev_link(port_dev, dev, NULL);
 	if (ret < 0)
 		goto out_unregister;
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1506be58c59a..939b8f3de810 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3619,10 +3619,8 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
 struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
 int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev);
 int netdev_master_upper_dev_link(struct net_device *dev,
-				 struct net_device *upper_dev);
-int netdev_master_upper_dev_link_private(struct net_device *dev,
-					 struct net_device *upper_dev,
-					 void *private);
+				 struct net_device *upper_dev,
+				 void *upper_priv);
 void netdev_upper_dev_unlink(struct net_device *dev,
 			     struct net_device *upper_dev);
 void netdev_adjacent_rename_links(struct net_device *dev, char *oldname);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index f11345e163d7..a7f4f1085dbb 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -464,7 +464,8 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 	hard_iface->soft_iface = soft_iface;
 	bat_priv = netdev_priv(hard_iface->soft_iface);
 
-	ret = netdev_master_upper_dev_link(hard_iface->net_dev, soft_iface);
+	ret = netdev_master_upper_dev_link(hard_iface->net_dev,
+					   soft_iface, NULL);
 	if (ret)
 		goto err_dev;
 
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index ec02f5869a78..781abc34667a 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -493,7 +493,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 
 	dev->priv_flags |= IFF_BRIDGE_PORT;
 
-	err = netdev_master_upper_dev_link(dev, br->dev);
+	err = netdev_master_upper_dev_link(dev, br->dev, NULL);
 	if (err)
 		goto err5;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 939cd1b1da15..27d052bb78bc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5421,7 +5421,7 @@ static void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
 
 static int __netdev_upper_dev_link(struct net_device *dev,
 				   struct net_device *upper_dev, bool master,
-				   void *private)
+				   void *upper_priv)
 {
 	struct netdev_notifier_changeupper_info changeupper_info;
 	struct netdev_adjacent *i, *j, *to_i, *to_j;
@@ -5452,7 +5452,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 	if (ret)
 		return ret;
 
-	ret = __netdev_adjacent_dev_link_neighbour(dev, upper_dev, private,
+	ret = __netdev_adjacent_dev_link_neighbour(dev, upper_dev, upper_priv,
 						   master);
 	if (ret)
 		return ret;
@@ -5557,6 +5557,7 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
  * netdev_master_upper_dev_link - Add a master link to the upper device
  * @dev: device
  * @upper_dev: new upper device
+ * @upper_priv: upper device private
  *
  * Adds a link to device which is upper to this one. In this case, only
  * one master upper device can be linked, although other non-master devices
@@ -5565,20 +5566,13 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
  * counts are adjusted and the function returns zero.
  */
 int netdev_master_upper_dev_link(struct net_device *dev,
-				 struct net_device *upper_dev)
+				 struct net_device *upper_dev,
+				 void *upper_priv)
 {
-	return __netdev_upper_dev_link(dev, upper_dev, true, NULL);
+	return __netdev_upper_dev_link(dev, upper_dev, true, upper_priv);
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_link);
 
-int netdev_master_upper_dev_link_private(struct net_device *dev,
-					 struct net_device *upper_dev,
-					 void *private)
-{
-	return __netdev_upper_dev_link(dev, upper_dev, true, private);
-}
-EXPORT_SYMBOL(netdev_master_upper_dev_link_private);
-
 /**
  * netdev_upper_dev_unlink - Removes a link to upper device
  * @dev: device
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index b327368a3848..3ee3df1edeae 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -105,7 +105,7 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
 
 	rtnl_lock();
 	err = netdev_master_upper_dev_link(vport->dev,
-					   get_dpdev(vport->dp));
+					   get_dpdev(vport->dp), NULL);
 	if (err)
 		goto error_unlock;
 
-- 
cgit v1.3-18-gd494


From 29bf24afb29042f568fa67b1b0eee46796725ed2 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:11 +0100
Subject: net: add possibility to pass information about upper device via
 notifier

Sometimes the drivers and other code would find it handy to know some
internal information about upper device being changed. So allow upper-code
to pass information down to notifier listeners during linking.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c |  2 +-
 drivers/net/team/team.c         |  2 +-
 drivers/net/vrf.c               |  2 +-
 include/linux/netdevice.h       |  3 ++-
 net/batman-adv/hard-interface.c |  2 +-
 net/bridge/br_if.c              |  2 +-
 net/core/dev.c                  | 11 +++++++----
 net/openvswitch/vport-netdev.c  |  2 +-
 8 files changed, 15 insertions(+), 11 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 924015729b2d..fa3ed1d8a12d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1204,7 +1204,7 @@ static int bond_master_upper_dev_link(struct net_device *bond_dev,
 {
 	int err;
 
-	err = netdev_master_upper_dev_link(slave_dev, bond_dev, slave);
+	err = netdev_master_upper_dev_link(slave_dev, bond_dev, slave, NULL);
 	if (err)
 		return err;
 	slave_dev->flags |= IFF_SLAVE;
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index b37f8d14dca0..f7b6ff7948b8 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1083,7 +1083,7 @@ static int team_upper_dev_link(struct net_device *dev,
 {
 	int err;
 
-	err = netdev_master_upper_dev_link(port_dev, dev, NULL);
+	err = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL);
 	if (err)
 		return err;
 	port_dev->priv_flags |= IFF_TEAM_PORT;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 59c5bddeaedd..8944a49cda15 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -624,7 +624,7 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
 		goto out_fail;
 	}
 
-	ret = netdev_master_upper_dev_link(port_dev, dev, NULL);
+	ret = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL);
 	if (ret < 0)
 		goto out_unregister;
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 939b8f3de810..aea556c64f2c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2163,6 +2163,7 @@ struct netdev_notifier_changeupper_info {
 	struct net_device *upper_dev; /* new upper dev */
 	bool master; /* is upper dev master */
 	bool linking; /* is the nofication for link or unlink */
+	void *upper_info; /* upper dev info */
 };
 
 static inline void netdev_notifier_info_init(struct netdev_notifier_info *info,
@@ -3620,7 +3621,7 @@ struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
 int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev);
 int netdev_master_upper_dev_link(struct net_device *dev,
 				 struct net_device *upper_dev,
-				 void *upper_priv);
+				 void *upper_priv, void *upper_info);
 void netdev_upper_dev_unlink(struct net_device *dev,
 			     struct net_device *upper_dev);
 void netdev_adjacent_rename_links(struct net_device *dev, char *oldname);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index a7f4f1085dbb..aa8867e1d983 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -465,7 +465,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 	bat_priv = netdev_priv(hard_iface->soft_iface);
 
 	ret = netdev_master_upper_dev_link(hard_iface->net_dev,
-					   soft_iface, NULL);
+					   soft_iface, NULL, NULL);
 	if (ret)
 		goto err_dev;
 
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 781abc34667a..8d1d4a22c50d 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -493,7 +493,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 
 	dev->priv_flags |= IFF_BRIDGE_PORT;
 
-	err = netdev_master_upper_dev_link(dev, br->dev, NULL);
+	err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL);
 	if (err)
 		goto err5;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 27d052bb78bc..8ed886663c6d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5421,7 +5421,7 @@ static void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
 
 static int __netdev_upper_dev_link(struct net_device *dev,
 				   struct net_device *upper_dev, bool master,
-				   void *upper_priv)
+				   void *upper_priv, void *upper_info)
 {
 	struct netdev_notifier_changeupper_info changeupper_info;
 	struct netdev_adjacent *i, *j, *to_i, *to_j;
@@ -5445,6 +5445,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 	changeupper_info.upper_dev = upper_dev;
 	changeupper_info.master = master;
 	changeupper_info.linking = true;
+	changeupper_info.upper_info = upper_info;
 
 	ret = call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER, dev,
 					    &changeupper_info.info);
@@ -5549,7 +5550,7 @@ rollback_mesh:
 int netdev_upper_dev_link(struct net_device *dev,
 			  struct net_device *upper_dev)
 {
-	return __netdev_upper_dev_link(dev, upper_dev, false, NULL);
+	return __netdev_upper_dev_link(dev, upper_dev, false, NULL, NULL);
 }
 EXPORT_SYMBOL(netdev_upper_dev_link);
 
@@ -5558,6 +5559,7 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
  * @dev: device
  * @upper_dev: new upper device
  * @upper_priv: upper device private
+ * @upper_info: upper info to be passed down via notifier
  *
  * Adds a link to device which is upper to this one. In this case, only
  * one master upper device can be linked, although other non-master devices
@@ -5567,9 +5569,10 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
  */
 int netdev_master_upper_dev_link(struct net_device *dev,
 				 struct net_device *upper_dev,
-				 void *upper_priv)
+				 void *upper_priv, void *upper_info)
 {
-	return __netdev_upper_dev_link(dev, upper_dev, true, upper_priv);
+	return __netdev_upper_dev_link(dev, upper_dev, true,
+				       upper_priv, upper_info);
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_link);
 
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 3ee3df1edeae..8f4dd4c39bfe 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -105,7 +105,7 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
 
 	rtnl_lock();
 	err = netdev_master_upper_dev_link(vport->dev,
-					   get_dpdev(vport->dp), NULL);
+					   get_dpdev(vport->dp), NULL, NULL);
 	if (err)
 		goto error_unlock;
 
-- 
cgit v1.3-18-gd494


From 764f5e544118508add420724789f46e04dba91eb Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:12 +0100
Subject: net: add info struct for LAG changeupper

This struct will be shared by bonding and team to pass internal
information to notifier listeners.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index aea556c64f2c..3ab90ea0ed03 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2110,6 +2110,19 @@ struct pcpu_sw_netstats {
 #define netdev_alloc_pcpu_stats(type)					\
 	__netdev_alloc_pcpu_stats(type, GFP_KERNEL);
 
+enum netdev_lag_tx_type {
+	NETDEV_LAG_TX_TYPE_UNKNOWN,
+	NETDEV_LAG_TX_TYPE_RANDOM,
+	NETDEV_LAG_TX_TYPE_BROADCAST,
+	NETDEV_LAG_TX_TYPE_ROUNDROBIN,
+	NETDEV_LAG_TX_TYPE_ACTIVEBACKUP,
+	NETDEV_LAG_TX_TYPE_HASH,
+};
+
+struct netdev_lag_upper_info {
+	enum netdev_lag_tx_type tx_type;
+};
+
 #include <linux/notifier.h>
 
 /* netdevice notifier chain. Please remember to update the rtnetlink
-- 
cgit v1.3-18-gd494


From 8fd728566a354f7bc9cb6e781f185b8c39cf505b Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:13 +0100
Subject: team: fill-up LAG changeupper info struct and pass it along

Initialize netdev_lag_upper_info structure by TX type according to
current team mode and pass it along via netdev_master_upper_dev_link.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/team/team.c                   | 23 ++++++++++++-----------
 drivers/net/team/team_mode_activebackup.c |  1 +
 drivers/net/team/team_mode_broadcast.c    |  1 +
 drivers/net/team/team_mode_loadbalance.c  |  1 +
 drivers/net/team/team_mode_random.c       |  1 +
 drivers/net/team/team_mode_roundrobin.c   |  1 +
 include/linux/if_team.h                   |  1 +
 7 files changed, 18 insertions(+), 11 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index f7b6ff7948b8..dd1504bbb4a7 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1078,23 +1078,24 @@ static void team_port_disable_netpoll(struct team_port *port)
 }
 #endif
 
-static int team_upper_dev_link(struct net_device *dev,
-			       struct net_device *port_dev)
+static int team_upper_dev_link(struct team *team, struct team_port *port)
 {
+	struct netdev_lag_upper_info lag_upper_info;
 	int err;
 
-	err = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL);
+	lag_upper_info.tx_type = team->mode->lag_tx_type;
+	err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
+					   &lag_upper_info);
 	if (err)
 		return err;
-	port_dev->priv_flags |= IFF_TEAM_PORT;
+	port->dev->priv_flags |= IFF_TEAM_PORT;
 	return 0;
 }
 
-static void team_upper_dev_unlink(struct net_device *dev,
-				  struct net_device *port_dev)
+static void team_upper_dev_unlink(struct team *team, struct team_port *port)
 {
-	netdev_upper_dev_unlink(port_dev, dev);
-	port_dev->priv_flags &= ~IFF_TEAM_PORT;
+	netdev_upper_dev_unlink(port->dev, team->dev);
+	port->dev->priv_flags &= ~IFF_TEAM_PORT;
 }
 
 static void __team_port_change_port_added(struct team_port *port, bool linkup);
@@ -1194,7 +1195,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 		goto err_handler_register;
 	}
 
-	err = team_upper_dev_link(dev, port_dev);
+	err = team_upper_dev_link(team, port);
 	if (err) {
 		netdev_err(dev, "Device %s failed to set upper link\n",
 			   portname);
@@ -1220,7 +1221,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 	return 0;
 
 err_option_port_add:
-	team_upper_dev_unlink(dev, port_dev);
+	team_upper_dev_unlink(team, port);
 
 err_set_upper_link:
 	netdev_rx_handler_unregister(port_dev);
@@ -1264,7 +1265,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
 
 	team_port_disable(team, port);
 	list_del_rcu(&port->list);
-	team_upper_dev_unlink(dev, port_dev);
+	team_upper_dev_unlink(team, port);
 	netdev_rx_handler_unregister(port_dev);
 	team_port_disable_netpoll(port);
 	vlan_vids_del_by_dev(port_dev, dev);
diff --git a/drivers/net/team/team_mode_activebackup.c b/drivers/net/team/team_mode_activebackup.c
index 40fd3381b693..3f189823ba3b 100644
--- a/drivers/net/team/team_mode_activebackup.c
+++ b/drivers/net/team/team_mode_activebackup.c
@@ -127,6 +127,7 @@ static const struct team_mode ab_mode = {
 	.owner		= THIS_MODULE,
 	.priv_size	= sizeof(struct ab_priv),
 	.ops		= &ab_mode_ops,
+	.lag_tx_type	= NETDEV_LAG_TX_TYPE_ACTIVEBACKUP,
 };
 
 static int __init ab_init_module(void)
diff --git a/drivers/net/team/team_mode_broadcast.c b/drivers/net/team/team_mode_broadcast.c
index c366cd299c06..302ff35b0cbc 100644
--- a/drivers/net/team/team_mode_broadcast.c
+++ b/drivers/net/team/team_mode_broadcast.c
@@ -56,6 +56,7 @@ static const struct team_mode bc_mode = {
 	.kind		= "broadcast",
 	.owner		= THIS_MODULE,
 	.ops		= &bc_mode_ops,
+	.lag_tx_type	= NETDEV_LAG_TX_TYPE_BROADCAST,
 };
 
 static int __init bc_init_module(void)
diff --git a/drivers/net/team/team_mode_loadbalance.c b/drivers/net/team/team_mode_loadbalance.c
index a1536d0d83a9..cdb19b385d42 100644
--- a/drivers/net/team/team_mode_loadbalance.c
+++ b/drivers/net/team/team_mode_loadbalance.c
@@ -661,6 +661,7 @@ static const struct team_mode lb_mode = {
 	.priv_size	= sizeof(struct lb_priv),
 	.port_priv_size	= sizeof(struct lb_port_priv),
 	.ops		= &lb_mode_ops,
+	.lag_tx_type	= NETDEV_LAG_TX_TYPE_HASH,
 };
 
 static int __init lb_init_module(void)
diff --git a/drivers/net/team/team_mode_random.c b/drivers/net/team/team_mode_random.c
index cd2f692b8074..215f845782db 100644
--- a/drivers/net/team/team_mode_random.c
+++ b/drivers/net/team/team_mode_random.c
@@ -46,6 +46,7 @@ static const struct team_mode rnd_mode = {
 	.kind		= "random",
 	.owner		= THIS_MODULE,
 	.ops		= &rnd_mode_ops,
+	.lag_tx_type	= NETDEV_LAG_TX_TYPE_RANDOM,
 };
 
 static int __init rnd_init_module(void)
diff --git a/drivers/net/team/team_mode_roundrobin.c b/drivers/net/team/team_mode_roundrobin.c
index 53665850b59e..0aa234118c03 100644
--- a/drivers/net/team/team_mode_roundrobin.c
+++ b/drivers/net/team/team_mode_roundrobin.c
@@ -58,6 +58,7 @@ static const struct team_mode rr_mode = {
 	.owner		= THIS_MODULE,
 	.priv_size	= sizeof(struct rr_priv),
 	.ops		= &rr_mode_ops,
+	.lag_tx_type	= NETDEV_LAG_TX_TYPE_ROUNDROBIN,
 };
 
 static int __init rr_init_module(void)
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index a6aa970758a2..b84e49c3a738 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -164,6 +164,7 @@ struct team_mode {
 	size_t priv_size;
 	size_t port_priv_size;
 	const struct team_mode_ops *ops;
+	enum netdev_lag_tx_type lag_tx_type;
 };
 
 #define TEAM_PORT_HASHBITS 4
-- 
cgit v1.3-18-gd494


From 04d482660a07039fc4e9a42bb3517db236d98f96 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:15 +0100
Subject: net: introduce change lower state notifier

When lower device like bonding slave, team/bridge port, etc changes its
state, it is useful for others to notice this change. Currently this is
implemented specificly for bonding as NETDEV_BONDING_INFO notifier. This
patch aims to replace this specific usage and make this more generic to
be used for all upper-lower devices.

Introduce NETDEV_CHANGELOWERSTATE netdev notifier type and
netdev_lower_state_changed() helper.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  8 ++++++++
 net/core/dev.c            | 20 ++++++++++++++++++++
 2 files changed, 28 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3ab90ea0ed03..ad69f237aa78 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2158,6 +2158,7 @@ struct netdev_lag_upper_info {
 #define NETDEV_CHANGEINFODATA	0x0018
 #define NETDEV_BONDING_INFO	0x0019
 #define NETDEV_PRECHANGEUPPER	0x001A
+#define NETDEV_CHANGELOWERSTATE	0x001B
 
 int register_netdevice_notifier(struct notifier_block *nb);
 int unregister_netdevice_notifier(struct notifier_block *nb);
@@ -2179,6 +2180,11 @@ struct netdev_notifier_changeupper_info {
 	void *upper_info; /* upper dev info */
 };
 
+struct netdev_notifier_changelowerstate_info {
+	struct netdev_notifier_info info; /* must be first */
+	void *lower_state_info; /* is lower dev state */
+};
+
 static inline void netdev_notifier_info_init(struct netdev_notifier_info *info,
 					     struct net_device *dev)
 {
@@ -3640,6 +3646,8 @@ void netdev_upper_dev_unlink(struct net_device *dev,
 void netdev_adjacent_rename_links(struct net_device *dev, char *oldname);
 void *netdev_lower_dev_get_private(struct net_device *dev,
 				   struct net_device *lower_dev);
+void netdev_lower_state_changed(struct net_device *lower_dev,
+				void *lower_state_info);
 
 /* RSS keys are 40 or 52 bytes long */
 #define NETDEV_RSS_KEY_LEN 52
diff --git a/net/core/dev.c b/net/core/dev.c
index 8ed886663c6d..d1706e88fbeb 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5756,6 +5756,26 @@ int dev_get_nest_level(struct net_device *dev,
 }
 EXPORT_SYMBOL(dev_get_nest_level);
 
+/**
+ * netdev_lower_change - Dispatch event about lower device state change
+ * @lower_dev: device
+ * @lower_state_info: state to dispatch
+ *
+ * Send NETDEV_CHANGELOWERSTATE to netdev notifiers with info.
+ * The caller must hold the RTNL lock.
+ */
+void netdev_lower_state_changed(struct net_device *lower_dev,
+				void *lower_state_info)
+{
+	struct netdev_notifier_changelowerstate_info changelowerstate_info;
+
+	ASSERT_RTNL();
+	changelowerstate_info.lower_state_info = lower_state_info;
+	call_netdevice_notifiers_info(NETDEV_CHANGELOWERSTATE, lower_dev,
+				      &changelowerstate_info.info);
+}
+EXPORT_SYMBOL(netdev_lower_state_changed);
+
 static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
-- 
cgit v1.3-18-gd494


From fb1b2e3ce53aef80b3cef71f3885d584cdbdc6b8 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 12:12:16 +0100
Subject: net: introduce lower state changed info structure for LAG lowers

This is shared info structure for bonding and team. Serves to pass down
info about link state and port activity to notification listeners.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ad69f237aa78..fa84b59eb197 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2123,6 +2123,11 @@ struct netdev_lag_upper_info {
 	enum netdev_lag_tx_type tx_type;
 };
 
+struct netdev_lag_lower_state_info {
+	u8 link_up : 1,
+	   tx_enabled : 1;
+};
+
 #include <linux/notifier.h>
 
 /* netdevice notifier chain. Please remember to update the rtnetlink
-- 
cgit v1.3-18-gd494