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Message-Id: <20170526063740.8909-5-jiri@resnulli.us>
Date: Fri, 26 May 2017 08:37:26 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, idosch@...lanox.com, mlxsw@...lanox.com,
stephen@...workplumber.org, nikolay@...ulusnetworks.com
Subject: [patch net-next 04/18] mlxsw: spectrum: Introduce Port-VLAN structure
From: Ido Schimmel <idosch@...lanox.com>
This is the first step in the transition from the vPort model to a
unified Port-VLAN structure. The new structure is defined and created /
destroyed upon invocation of the 8021q ndos, but it's not actually used
throughout the code.
Subsequent patches will initialize it correctly and also create /
destroy it upon switchdev's VLAN object.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 48 ++++++++++++++++++++++++--
drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 23 ++++++++++++
2 files changed, 68 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 5d67336..6f5f011 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -1480,10 +1480,34 @@ static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
kfree(mlxsw_sp_vport);
}
+static struct mlxsw_sp_port_vlan *
+mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
+{
+ struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
+
+ mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL);
+ if (!mlxsw_sp_port_vlan)
+ return ERR_PTR(-ENOMEM);
+
+ mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port;
+ mlxsw_sp_port_vlan->vid = vid;
+ list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list);
+
+ return mlxsw_sp_port_vlan;
+}
+
+static void
+mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
+{
+ list_del(&mlxsw_sp_port_vlan->list);
+ kfree(mlxsw_sp_port_vlan);
+}
+
static int mlxsw_sp_port_add_vid(struct net_device *dev,
__be16 __always_unused proto, u16 vid)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
+ struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
struct mlxsw_sp_port *mlxsw_sp_vport;
bool untagged = vid == 1;
int err;
@@ -1494,12 +1518,19 @@ static int mlxsw_sp_port_add_vid(struct net_device *dev,
if (!vid)
return 0;
- if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid))
+ mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
+ if (mlxsw_sp_port_vlan)
return 0;
+ mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid);
+ if (IS_ERR(mlxsw_sp_port_vlan))
+ return PTR_ERR(mlxsw_sp_port_vlan);
+
mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
- if (!mlxsw_sp_vport)
- return -ENOMEM;
+ if (!mlxsw_sp_vport) {
+ err = -ENOMEM;
+ goto err_port_vport_create;
+ }
err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
if (err)
@@ -1509,6 +1540,8 @@ static int mlxsw_sp_port_add_vid(struct net_device *dev,
err_port_add_vid:
mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
+err_port_vport_create:
+ mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
return err;
}
@@ -1516,6 +1549,7 @@ static int mlxsw_sp_port_kill_vid(struct net_device *dev,
__be16 __always_unused proto, u16 vid)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
+ struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
struct mlxsw_sp_port *mlxsw_sp_vport;
struct mlxsw_sp_fid *f;
@@ -1525,6 +1559,10 @@ static int mlxsw_sp_port_kill_vid(struct net_device *dev,
if (!vid)
return 0;
+ mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
+ if (WARN_ON(!mlxsw_sp_port_vlan))
+ return 0;
+
mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
if (WARN_ON(!mlxsw_sp_vport))
return 0;
@@ -1540,6 +1578,8 @@ static int mlxsw_sp_port_kill_vid(struct net_device *dev,
mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
+ mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
+
return 0;
}
@@ -2720,6 +2760,7 @@ static int __mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
err = -ENOMEM;
goto err_port_untagged_vlans_alloc;
}
+ INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list);
INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
@@ -2926,6 +2967,7 @@ static void __mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
kfree(mlxsw_sp_port->untagged_vlans);
kfree(mlxsw_sp_port->active_vlans);
WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
+ WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list));
free_netdev(mlxsw_sp_port->dev);
}
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 277a432..c4ac648 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -203,6 +203,13 @@ struct mlxsw_sp_port_sample {
bool truncate;
};
+struct mlxsw_sp_port_vlan {
+ struct list_head list;
+ struct mlxsw_sp_port *mlxsw_sp_port;
+ struct mlxsw_sp_fid *fid;
+ u16 vid;
+};
+
struct mlxsw_sp_port {
struct net_device *dev;
struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats;
@@ -254,6 +261,7 @@ struct mlxsw_sp_port {
} hw_stats;
struct mlxsw_sp_port_sample *sample;
unsigned int nr_port_vid_map; /* {Port, VID} => FID mappings */
+ struct list_head vlans_list;
};
bool mlxsw_sp_port_dev_check(const struct net_device *dev);
@@ -279,6 +287,21 @@ mlxsw_sp_port_lagged_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 port_index)
return mlxsw_sp_port && mlxsw_sp_port->lagged ? mlxsw_sp_port : NULL;
}
+static inline struct mlxsw_sp_port_vlan *
+mlxsw_sp_port_vlan_find_by_vid(const struct mlxsw_sp_port *mlxsw_sp_port,
+ u16 vid)
+{
+ struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
+
+ list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
+ list) {
+ if (mlxsw_sp_port_vlan->vid == vid)
+ return mlxsw_sp_port_vlan;
+ }
+
+ return NULL;
+}
+
static inline u16
mlxsw_sp_vport_vid_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
{
--
2.9.3
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