Commit 9b63ef88 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

mlxsw: spectrum: Propagate extack further for bridge enslavements 



The code that actually takes care of bridge offload introduces a few
more non-trivial constraints with regards to bridge enslavements.
Propagate extack there to indicate the reason.

$ ip link add link enp1s0np1 name enp1s0np1.10 type vlan id 10
$ ip link add link enp1s0np1 name enp1s0np1.20 type vlan id 20
$ ip link add name br0 type bridge
$ ip link set dev enp1s0np1.10 master br0
$ ip link set dev enp1s0np1.20 master br0
Error: spectrum: Can not bridge VLAN uppers of the same port.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Acked-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c1f2c6d0

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

+4 −2
Original line number Diff line number Diff line
@@ -4299,7 +4299,8 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev, 
			if (info->linking)

				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,

								lower_dev,

								upper_dev);

								upper_dev,

								extack);

			else

				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,

							   lower_dev,
@@ -4416,7 +4417,8 @@ static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev, 
			if (info->linking)

				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,

								vlan_dev,

								upper_dev);

								upper_dev,

								extack);

			else

				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,

							   vlan_dev,

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

+2 −1
Original line number Diff line number Diff line
@@ -326,7 +326,8 @@ void 
mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan);

int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,

			      struct net_device *brport_dev,

			      struct net_device *br_dev);

			      struct net_device *br_dev,

			      struct netlink_ext_ack *extack);

void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,

				struct net_device *brport_dev,

				struct net_device *br_dev);

drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

+17 −8
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 
#include <linux/workqueue.h>

#include <linux/jiffies.h>

#include <linux/rtnetlink.h>

#include <linux/netlink.h>

#include <net/switchdev.h>



#include "spectrum.h"
@@ -107,7 +108,8 @@ struct mlxsw_sp_bridge_vlan { 
struct mlxsw_sp_bridge_ops {

	int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device,

			 struct mlxsw_sp_bridge_port *bridge_port,

			 struct mlxsw_sp_port *mlxsw_sp_port);

			 struct mlxsw_sp_port *mlxsw_sp_port,

			 struct netlink_ext_ack *extack);

	void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device,

			   struct mlxsw_sp_bridge_port *bridge_port,

			   struct mlxsw_sp_port *mlxsw_sp_port);
@@ -1735,12 +1737,15 @@ static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = { 
static int

mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,

				struct mlxsw_sp_bridge_port *bridge_port,

				struct mlxsw_sp_port *mlxsw_sp_port)

				struct mlxsw_sp_port *mlxsw_sp_port,

				struct netlink_ext_ack *extack)

{

	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;



	if (is_vlan_dev(bridge_port->dev))

	if (is_vlan_dev(bridge_port->dev)) {

		NL_SET_ERR_MSG(extack, "spectrum: Can not enslave a VLAN device to a VLAN-aware bridge");

		return -EINVAL;

	}



	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);

	if (WARN_ON(!mlxsw_sp_port_vlan))
@@ -1797,13 +1802,16 @@ mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port, 
static int

mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,

				struct mlxsw_sp_bridge_port *bridge_port,

				struct mlxsw_sp_port *mlxsw_sp_port)

				struct mlxsw_sp_port *mlxsw_sp_port,

				struct netlink_ext_ack *extack)

{

	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;

	u16 vid;



	if (!is_vlan_dev(bridge_port->dev))

	if (!is_vlan_dev(bridge_port->dev)) {

		NL_SET_ERR_MSG(extack, "spectrum: Only VLAN devices can be enslaved to a VLAN-unaware bridge");

		return -EINVAL;

	}

	vid = vlan_dev_vlan_id(bridge_port->dev);



	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
@@ -1811,7 +1819,7 @@ mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device, 
		return -EINVAL;



	if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) {

		netdev_err(mlxsw_sp_port->dev, "Can't bridge VLAN uppers of the same port\n");

		NL_SET_ERR_MSG(extack, "spectrum: Can not bridge VLAN uppers of the same port");

		return -EINVAL;

	}
@@ -1854,7 +1862,8 @@ static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = { 


int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,

			      struct net_device *brport_dev,

			      struct net_device *br_dev)

			      struct net_device *br_dev,

			      struct netlink_ext_ack *extack)

{

	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

	struct mlxsw_sp_bridge_device *bridge_device;
@@ -1867,7 +1876,7 @@ int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, 
	bridge_device = bridge_port->bridge_device;



	err = bridge_device->ops->port_join(bridge_device, bridge_port,

					    mlxsw_sp_port);

					    mlxsw_sp_port, extack);

	if (err)

		goto err_port_join;

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