netdev - [PATCH net-next 03/10] mlxsw: spectrum: Move handling of VRF events to router code

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Message-Id: <20220508080823.32154-4-idosch@nvidia.com>
Date:   Sun,  8 May 2022 11:08:16 +0300
From:   Ido Schimmel <idosch@...dia.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, petrm@...dia.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 03/10] mlxsw: spectrum: Move handling of VRF events to router code

From: Petr Machata <petrm@...dia.com>

Events involving VRF, as L3 concern, are handled in the router code, by the
helper mlxsw_sp_netdevice_vrf_event(). The handler is currently invoked
from the centralized dispatcher in spectrum.c. Instead, move the call to
the newly-introduced router-specific notifier handler.

Signed-off-by: Petr Machata <petrm@...dia.com>
Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 11 -----------
 drivers/net/ethernet/mellanox/mlxsw/spectrum.h |  2 --
 .../ethernet/mellanox/mlxsw/spectrum_router.c  | 18 ++++++++++++++++--
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 12fd846a778f..867c1f3810e6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4936,15 +4936,6 @@ static int mlxsw_sp_netdevice_macvlan_event(struct net_device *macvlan_dev,
 	return 0;
 }
 
-static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr)
-{
-	struct netdev_notifier_changeupper_info *info = ptr;
-
-	if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER)
-		return false;
-	return netif_is_l3_master(info->upper_dev);
-}
-
 static int mlxsw_sp_netdevice_vxlan_event(struct mlxsw_sp *mlxsw_sp,
 					  struct net_device *dev,
 					  unsigned long event, void *ptr)
@@ -5055,8 +5046,6 @@ static int mlxsw_sp_netdevice_event(struct notifier_block *nb,
 						       event, ptr);
 	else if (mlxsw_sp_netdevice_event_is_router(event))
 		err = mlxsw_sp_netdevice_router_port_event(dev, event, ptr);
-	else if (mlxsw_sp_is_vrf_event(event, ptr))
-		err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr);
 	else if (mlxsw_sp_port_dev_check(dev))
 		err = mlxsw_sp_netdevice_port_event(dev, dev, event, ptr);
 	else if (netif_is_lag_master(dev))
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 2ad29ae1c640..a20e2a1b8569 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -726,8 +726,6 @@ int mlxsw_sp_inetaddr_valid_event(struct notifier_block *unused,
 				  unsigned long event, void *ptr);
 int mlxsw_sp_inet6addr_valid_event(struct notifier_block *unused,
 				   unsigned long event, void *ptr);
-int mlxsw_sp_netdevice_vrf_event(struct net_device *l3_dev, unsigned long event,
-				 struct netdev_notifier_changeupper_info *info);
 bool mlxsw_sp_netdev_is_ipip_ol(const struct mlxsw_sp *mlxsw_sp,
 				const struct net_device *dev);
 bool mlxsw_sp_netdev_is_ipip_ul(struct mlxsw_sp *mlxsw_sp,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 3fcb848836f0..fa4d9bf7da75 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -9476,8 +9476,18 @@ static void mlxsw_sp_port_vrf_leave(struct mlxsw_sp *mlxsw_sp,
 	__mlxsw_sp_inetaddr_event(mlxsw_sp, l3_dev, NETDEV_DOWN, NULL);
 }
 
-int mlxsw_sp_netdevice_vrf_event(struct net_device *l3_dev, unsigned long event,
-				 struct netdev_notifier_changeupper_info *info)
+static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr)
+{
+	struct netdev_notifier_changeupper_info *info = ptr;
+
+	if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER)
+		return false;
+	return netif_is_l3_master(info->upper_dev);
+}
+
+static int
+mlxsw_sp_netdevice_vrf_event(struct net_device *l3_dev, unsigned long event,
+			     struct netdev_notifier_changeupper_info *info)
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
 	int err = 0;
@@ -9511,8 +9521,12 @@ int mlxsw_sp_netdevice_vrf_event(struct net_device *l3_dev, unsigned long event,
 static int mlxsw_sp_router_netdevice_event(struct notifier_block *nb,
 					   unsigned long event, void *ptr)
 {
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	int err = 0;
 
+	if (mlxsw_sp_is_vrf_event(event, ptr))
+		err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr);
+
 	return notifier_from_errno(err);
 }
 
-- 
2.35.1