aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c782
1 files changed, 657 insertions, 125 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 50080c60a279..1bd2c6e15f8d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -85,13 +85,11 @@ struct mlxsw_sp_bridge_ops {
struct mlxsw_sp_bridge_port *bridge_port,
struct mlxsw_sp_port *mlxsw_sp_port);
int (*vxlan_join)(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev,
+ const struct net_device *vxlan_dev, u16 vid,
struct netlink_ext_ack *extack);
- void (*vxlan_leave)(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev);
struct mlxsw_sp_fid *
(*fid_get)(struct mlxsw_sp_bridge_device *bridge_device,
- u16 vid);
+ u16 vid, struct netlink_ext_ack *extack);
struct mlxsw_sp_fid *
(*fid_lookup)(struct mlxsw_sp_bridge_device *bridge_device,
u16 vid);
@@ -292,30 +290,6 @@ mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port)
kfree(bridge_port);
}
-static bool
-mlxsw_sp_bridge_port_should_destroy(const struct mlxsw_sp_bridge_port *
- bridge_port)
-{
- struct net_device *dev = bridge_port->dev;
- struct mlxsw_sp *mlxsw_sp;
-
- if (is_vlan_dev(dev))
- mlxsw_sp = mlxsw_sp_lower_get(vlan_dev_real_dev(dev));
- else
- mlxsw_sp = mlxsw_sp_lower_get(dev);
-
- /* In case ports were pulled from out of a bridged LAG, then
- * it's possible the reference count isn't zero, yet the bridge
- * port should be destroyed, as it's no longer an upper of ours.
- */
- if (!mlxsw_sp && list_empty(&bridge_port->vlans_list))
- return true;
- else if (bridge_port->ref_count == 0)
- return true;
- else
- return false;
-}
-
static struct mlxsw_sp_bridge_port *
mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge,
struct net_device *brport_dev)
@@ -353,8 +327,7 @@ static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge,
{
struct mlxsw_sp_bridge_device *bridge_device;
- bridge_port->ref_count--;
- if (!mlxsw_sp_bridge_port_should_destroy(bridge_port))
+ if (--bridge_port->ref_count != 0)
return;
bridge_device = bridge_port->bridge_device;
mlxsw_sp_bridge_port_destroy(bridge_port);
@@ -935,7 +908,8 @@ static int mlxsw_sp_port_attr_set(struct net_device *dev,
static int
mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
- struct mlxsw_sp_bridge_port *bridge_port)
+ struct mlxsw_sp_bridge_port *bridge_port,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
struct mlxsw_sp_bridge_device *bridge_device;
@@ -945,7 +919,7 @@ mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
int err;
bridge_device = bridge_port->bridge_device;
- fid = bridge_device->ops->fid_get(bridge_device, vid);
+ fid = bridge_device->ops->fid_get(bridge_device, vid, extack);
if (IS_ERR(fid))
return PTR_ERR(fid);
@@ -1013,7 +987,8 @@ mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port,
static int
mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
- struct mlxsw_sp_bridge_port *bridge_port)
+ struct mlxsw_sp_bridge_port *bridge_port,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
struct mlxsw_sp_bridge_vlan *bridge_vlan;
@@ -1021,12 +996,11 @@ mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
int err;
/* No need to continue if only VLAN flags were changed */
- if (mlxsw_sp_port_vlan->bridge_port) {
- mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
+ if (mlxsw_sp_port_vlan->bridge_port)
return 0;
- }
- err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port);
+ err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port,
+ extack);
if (err)
return err;
@@ -1103,16 +1077,33 @@ mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
static int
mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
struct mlxsw_sp_bridge_port *bridge_port,
- u16 vid, bool is_untagged, bool is_pvid)
+ u16 vid, bool is_untagged, bool is_pvid,
+ struct netlink_ext_ack *extack,
+ struct switchdev_trans *trans)
{
u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid);
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
u16 old_pvid = mlxsw_sp_port->pvid;
int err;
- mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid);
- if (IS_ERR(mlxsw_sp_port_vlan))
- return PTR_ERR(mlxsw_sp_port_vlan);
+ /* The only valid scenario in which a port-vlan already exists, is if
+ * the VLAN flags were changed and the port-vlan is associated with the
+ * correct bridge port
+ */
+ mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
+ if (mlxsw_sp_port_vlan &&
+ mlxsw_sp_port_vlan->bridge_port != bridge_port)
+ return -EEXIST;
+
+ if (switchdev_trans_ph_prepare(trans))
+ return 0;
+
+ if (!mlxsw_sp_port_vlan) {
+ 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);
+ }
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true,
is_untagged);
@@ -1123,7 +1114,8 @@ mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
if (err)
goto err_port_pvid_set;
- err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
+ err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port,
+ extack);
if (err)
goto err_port_vlan_bridge_join;
@@ -1134,7 +1126,7 @@ err_port_vlan_bridge_join:
err_port_pvid_set:
mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
err_port_vlan_set:
- mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
+ mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
return err;
}
@@ -1173,7 +1165,8 @@ mlxsw_sp_br_ban_rif_pvid_change(struct mlxsw_sp *mlxsw_sp,
static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_vlan *vlan,
- struct switchdev_trans *trans)
+ struct switchdev_trans *trans,
+ struct netlink_ext_ack *extack)
{
bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
@@ -1195,9 +1188,6 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
return err;
}
- if (switchdev_trans_ph_prepare(trans))
- return 0;
-
bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
if (WARN_ON(!bridge_port))
return -EINVAL;
@@ -1210,7 +1200,7 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
err = mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port,
vid, flag_untagged,
- flag_pvid);
+ flag_pvid, extack, trans);
if (err)
return err;
}
@@ -1779,7 +1769,8 @@ static void mlxsw_sp_span_respin_schedule(struct mlxsw_sp *mlxsw_sp)
static int mlxsw_sp_port_obj_add(struct net_device *dev,
const struct switchdev_obj *obj,
- struct switchdev_trans *trans)
+ struct switchdev_trans *trans,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
const struct switchdev_obj_port_vlan *vlan;
@@ -1788,7 +1779,8 @@ static int mlxsw_sp_port_obj_add(struct net_device *dev,
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
- err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans);
+ err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans,
+ extack);
if (switchdev_trans_ph_prepare(trans)) {
/* The event is emitted before the changes are actually
@@ -1826,7 +1818,7 @@ mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
- mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
+ mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
}
static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
@@ -1974,8 +1966,6 @@ static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
.switchdev_port_attr_get = mlxsw_sp_port_attr_get,
.switchdev_port_attr_set = mlxsw_sp_port_attr_set,
- .switchdev_port_obj_add = mlxsw_sp_port_obj_add,
- .switchdev_port_obj_del = mlxsw_sp_port_obj_del,
};
static int
@@ -1984,19 +1974,14 @@ mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
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)) {
NL_SET_ERR_MSG_MOD(extack, "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))
- return -EINVAL;
-
- /* Let VLAN-aware bridge take care of its own VLANs */
- mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
+ /* Port is no longer usable as a router interface */
+ if (mlxsw_sp_port->default_vlan->fid)
+ mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan);
return 0;
}
@@ -2006,41 +1991,133 @@ mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
struct mlxsw_sp_bridge_port *bridge_port,
struct mlxsw_sp_port *mlxsw_sp_port)
{
- mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
/* Make sure untagged frames are allowed to ingress */
- mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
+ mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID);
}
static int
mlxsw_sp_bridge_8021q_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev,
+ const struct net_device *vxlan_dev, u16 vid,
struct netlink_ext_ack *extack)
{
- WARN_ON(1);
- return -EINVAL;
+ struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
+ struct vxlan_dev *vxlan = netdev_priv(vxlan_dev);
+ struct mlxsw_sp_nve_params params = {
+ .type = MLXSW_SP_NVE_TYPE_VXLAN,
+ .vni = vxlan->cfg.vni,
+ .dev = vxlan_dev,
+ };
+ struct mlxsw_sp_fid *fid;
+ int err;
+
+ /* If the VLAN is 0, we need to find the VLAN that is configured as
+ * PVID and egress untagged on the bridge port of the VxLAN device.
+ * It is possible no such VLAN exists
+ */
+ if (!vid) {
+ err = mlxsw_sp_vxlan_mapped_vid(vxlan_dev, &vid);
+ if (err || !vid)
+ return err;
+ }
+
+ /* If no other port is member in the VLAN, then the FID does not exist.
+ * NVE will be enabled on the FID once a port joins the VLAN
+ */
+ fid = mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid);
+ if (!fid)
+ return 0;
+
+ if (mlxsw_sp_fid_vni_is_set(fid)) {
+ err = -EINVAL;
+ goto err_vni_exists;
+ }
+
+ err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, &params, extack);
+ if (err)
+ goto err_nve_fid_enable;
+
+ /* The tunnel port does not hold a reference on the FID. Only
+ * local ports and the router port
+ */
+ mlxsw_sp_fid_put(fid);
+
+ return 0;
+
+err_nve_fid_enable:
+err_vni_exists:
+ mlxsw_sp_fid_put(fid);
+ return err;
}
-static void
-mlxsw_sp_bridge_8021q_vxlan_leave(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev)
+static struct net_device *
+mlxsw_sp_bridge_8021q_vxlan_dev_find(struct net_device *br_dev, u16 vid)
{
+ struct net_device *dev;
+ struct list_head *iter;
+
+ netdev_for_each_lower_dev(br_dev, dev, iter) {
+ u16 pvid;
+ int err;
+
+ if (!netif_is_vxlan(dev))
+ continue;
+
+ err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid);
+ if (err || pvid != vid)
+ continue;
+
+ return dev;
+ }
+
+ return NULL;
}
static struct mlxsw_sp_fid *
mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
- u16 vid)
+ u16 vid, struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
+ struct net_device *vxlan_dev;
+ struct mlxsw_sp_fid *fid;
+ int err;
+
+ fid = mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
+ if (IS_ERR(fid))
+ return fid;
+
+ if (mlxsw_sp_fid_vni_is_set(fid))
+ return fid;
+
+ /* Find the VxLAN device that has the specified VLAN configured as
+ * PVID and egress untagged. There can be at most one such device
+ */
+ vxlan_dev = mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev,
+ vid);
+ if (!vxlan_dev)
+ return fid;
+
+ if (!netif_running(vxlan_dev))
+ return fid;
+
+ err = mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, vid,
+ extack);
+ if (err)
+ goto err_vxlan_join;
+
+ return fid;
- return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
+err_vxlan_join:
+ mlxsw_sp_fid_put(fid);
+ return ERR_PTR(err);
}
static struct mlxsw_sp_fid *
mlxsw_sp_bridge_8021q_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device,
u16 vid)
{
- WARN_ON(1);
- return NULL;
+ struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
+
+ return mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid);
}
static u16
@@ -2054,7 +2131,6 @@ static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = {
.port_join = mlxsw_sp_bridge_8021q_port_join,
.port_leave = mlxsw_sp_bridge_8021q_port_leave,
.vxlan_join = mlxsw_sp_bridge_8021q_vxlan_join,
- .vxlan_leave = mlxsw_sp_bridge_8021q_vxlan_leave,
.fid_get = mlxsw_sp_bridge_8021q_fid_get,
.fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup,
.fid_vid = mlxsw_sp_bridge_8021q_fid_vid,
@@ -2087,7 +2163,7 @@ mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
struct net_device *dev = bridge_port->dev;
u16 vid;
- vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
+ vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (WARN_ON(!mlxsw_sp_port_vlan))
return -EINVAL;
@@ -2101,7 +2177,8 @@ mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
if (mlxsw_sp_port_vlan->fid)
mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
- return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
+ return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port,
+ extack);
}
static void
@@ -2113,9 +2190,9 @@ mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
struct net_device *dev = bridge_port->dev;
u16 vid;
- vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
+ vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
- if (!mlxsw_sp_port_vlan)
+ if (!mlxsw_sp_port_vlan || !mlxsw_sp_port_vlan->bridge_port)
return;
mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
@@ -2123,7 +2200,7 @@ mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
static int
mlxsw_sp_bridge_8021d_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev,
+ const struct net_device *vxlan_dev, u16 vid,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
@@ -2162,29 +2239,9 @@ err_vni_exists:
return err;
}
-static void
-mlxsw_sp_bridge_8021d_vxlan_leave(struct mlxsw_sp_bridge_device *bridge_device,
- const struct net_device *vxlan_dev)
-{
- struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
- struct mlxsw_sp_fid *fid;
-
- fid = mlxsw_sp_fid_8021d_lookup(mlxsw_sp, bridge_device->dev->ifindex);
- if (WARN_ON(!fid))
- return;
-
- /* If the VxLAN device is down, then the FID does not have a VNI */
- if (!mlxsw_sp_fid_vni_is_set(fid))
- goto out;
-
- mlxsw_sp_nve_fid_disable(mlxsw_sp, fid);
-out:
- mlxsw_sp_fid_put(fid);
-}
-
static struct mlxsw_sp_fid *
mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
- u16 vid)
+ u16 vid, struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
struct net_device *vxlan_dev;
@@ -2205,7 +2262,8 @@ mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
if (!netif_running(vxlan_dev))
return fid;
- err = mlxsw_sp_bridge_8021d_vxlan_join(bridge_device, vxlan_dev, NULL);
+ err = mlxsw_sp_bridge_8021d_vxlan_join(bridge_device, vxlan_dev, 0,
+ extack);
if (err)
goto err_vxlan_join;
@@ -2240,7 +2298,6 @@ static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = {
.port_join = mlxsw_sp_bridge_8021d_port_join,
.port_leave = mlxsw_sp_bridge_8021d_port_leave,
.vxlan_join = mlxsw_sp_bridge_8021d_vxlan_join,
- .vxlan_leave = mlxsw_sp_bridge_8021d_vxlan_leave,
.fid_get = mlxsw_sp_bridge_8021d_fid_get,
.fid_lookup = mlxsw_sp_bridge_8021d_fid_lookup,
.fid_vid = mlxsw_sp_bridge_8021d_fid_vid,
@@ -2295,7 +2352,7 @@ void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
int mlxsw_sp_bridge_vxlan_join(struct mlxsw_sp *mlxsw_sp,
const struct net_device *br_dev,
- const struct net_device *vxlan_dev,
+ const struct net_device *vxlan_dev, u16 vid,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp_bridge_device *bridge_device;
@@ -2304,20 +2361,102 @@ int mlxsw_sp_bridge_vxlan_join(struct mlxsw_sp *mlxsw_sp,
if (WARN_ON(!bridge_device))
return -EINVAL;
- return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, extack);
+ return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid,
+ extack);
}
void mlxsw_sp_bridge_vxlan_leave(struct mlxsw_sp *mlxsw_sp,
- const struct net_device *br_dev,
const struct net_device *vxlan_dev)
{
+ struct vxlan_dev *vxlan = netdev_priv(vxlan_dev);
+ struct mlxsw_sp_fid *fid;
+
+ /* If the VxLAN device is down, then the FID does not have a VNI */
+ fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan->cfg.vni);
+ if (!fid)
+ return;
+
+ mlxsw_sp_nve_fid_disable(mlxsw_sp, fid);
+ mlxsw_sp_fid_put(fid);
+}
+
+struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
+ const struct net_device *br_dev,
+ u16 vid,
+ struct netlink_ext_ack *extack)
+{
struct mlxsw_sp_bridge_device *bridge_device;
bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
if (WARN_ON(!bridge_device))
- return;
+ return ERR_PTR(-EINVAL);
+
+ return bridge_device->ops->fid_get(bridge_device, vid, extack);
+}
+
+static void
+mlxsw_sp_switchdev_vxlan_addr_convert(const union vxlan_addr *vxlan_addr,
+ enum mlxsw_sp_l3proto *proto,
+ union mlxsw_sp_l3addr *addr)
+{
+ if (vxlan_addr->sa.sa_family == AF_INET) {
+ addr->addr4 = vxlan_addr->sin.sin_addr.s_addr;
+ *proto = MLXSW_SP_L3_PROTO_IPV4;
+ } else {
+ addr->addr6 = vxlan_addr->sin6.sin6_addr;
+ *proto = MLXSW_SP_L3_PROTO_IPV6;
+ }
+}
- bridge_device->ops->vxlan_leave(bridge_device, vxlan_dev);
+static void
+mlxsw_sp_switchdev_addr_vxlan_convert(enum mlxsw_sp_l3proto proto,
+ const union mlxsw_sp_l3addr *addr,
+ union vxlan_addr *vxlan_addr)
+{
+ switch (proto) {
+ case MLXSW_SP_L3_PROTO_IPV4:
+ vxlan_addr->sa.sa_family = AF_INET;
+ vxlan_addr->sin.sin_addr.s_addr = addr->addr4;
+ break;
+ case MLXSW_SP_L3_PROTO_IPV6:
+ vxlan_addr->sa.sa_family = AF_INET6;
+ vxlan_addr->sin6.sin6_addr = addr->addr6;
+ break;
+ }
+}
+
+static void mlxsw_sp_fdb_vxlan_call_notifiers(struct net_device *dev,
+ const char *mac,
+ enum mlxsw_sp_l3proto proto,
+ union mlxsw_sp_l3addr *addr,
+ __be32 vni, bool adding)
+{
+ struct switchdev_notifier_vxlan_fdb_info info;
+ struct vxlan_dev *vxlan = netdev_priv(dev);
+ enum switchdev_notifier_type type;
+
+ type = adding ? SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE :
+ SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE;
+ mlxsw_sp_switchdev_addr_vxlan_convert(proto, addr, &info.remote_ip);
+ info.remote_port = vxlan->cfg.dst_port;
+ info.remote_vni = vni;
+ info.remote_ifindex = 0;
+ ether_addr_copy(info.eth_addr, mac);
+ info.vni = vni;
+ info.offloaded = adding;
+ call_switchdev_notifiers(type, dev, &info.info);
+}
+
+static void mlxsw_sp_fdb_nve_call_notifiers(struct net_device *dev,
+ const char *mac,
+ enum mlxsw_sp_l3proto proto,
+ union mlxsw_sp_l3addr *addr,
+ __be32 vni,
+ bool adding)
+{
+ if (netif_is_vxlan(dev))
+ mlxsw_sp_fdb_vxlan_call_notifiers(dev, mac, proto, addr, vni,
+ adding);
}
static void
@@ -2428,7 +2567,8 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
bridge_device = bridge_port->bridge_device;
vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
- lag_vid = mlxsw_sp_port_vlan->vid;
+ lag_vid = mlxsw_sp_fid_lag_vid_valid(mlxsw_sp_port_vlan->fid) ?
+ mlxsw_sp_port_vlan->vid : 0;
do_fdb_op:
err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
@@ -2451,6 +2591,122 @@ just_remove:
goto do_fdb_op;
}
+static int
+__mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_fid *fid,
+ bool adding,
+ struct net_device **nve_dev,
+ u16 *p_vid, __be32 *p_vni)
+{
+ struct mlxsw_sp_bridge_device *bridge_device;
+ struct net_device *br_dev, *dev;
+ int nve_ifindex;
+ int err;
+
+ err = mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex);
+ if (err)
+ return err;
+
+ err = mlxsw_sp_fid_vni(fid, p_vni);
+ if (err)
+ return err;
+
+ dev = __dev_get_by_index(&init_net, nve_ifindex);
+ if (!dev)
+ return -EINVAL;
+ *nve_dev = dev;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ if (adding && !br_port_flag_is_set(dev, BR_LEARNING))
+ return -EINVAL;
+
+ if (adding && netif_is_vxlan(dev)) {
+ struct vxlan_dev *vxlan = netdev_priv(dev);
+
+ if (!(vxlan->cfg.flags & VXLAN_F_LEARN))
+ return -EINVAL;
+ }
+
+ br_dev = netdev_master_upper_dev_get(dev);
+ if (!br_dev)
+ return -EINVAL;
+
+ bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
+ if (!bridge_device)
+ return -EINVAL;
+
+ *p_vid = bridge_device->ops->fid_vid(bridge_device, fid);
+
+ return 0;
+}
+
+static void mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp,
+ char *sfn_pl,
+ int rec_index,
+ bool adding)
+{
+ enum mlxsw_reg_sfn_uc_tunnel_protocol sfn_proto;
+ enum switchdev_notifier_type type;
+ struct net_device *nve_dev;
+ union mlxsw_sp_l3addr addr;
+ struct mlxsw_sp_fid *fid;
+ char mac[ETH_ALEN];
+ u16 fid_index, vid;
+ __be32 vni;
+ u32 uip;
+ int err;
+
+ mlxsw_reg_sfn_uc_tunnel_unpack(sfn_pl, rec_index, mac, &fid_index,
+ &uip, &sfn_proto);
+
+ fid = mlxsw_sp_fid_lookup_by_index(mlxsw_sp, fid_index);
+ if (!fid)
+ goto err_fid_lookup;
+
+ err = mlxsw_sp_nve_learned_ip_resolve(mlxsw_sp, uip,
+ (enum mlxsw_sp_l3proto) sfn_proto,
+ &addr);
+ if (err)
+ goto err_ip_resolve;
+
+ err = __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, fid, adding,
+ &nve_dev, &vid, &vni);
+ if (err)
+ goto err_fdb_process;
+
+ err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index,
+ (enum mlxsw_sp_l3proto) sfn_proto,
+ &addr, adding, true);
+ if (err)
+ goto err_fdb_op;
+
+ mlxsw_sp_fdb_nve_call_notifiers(nve_dev, mac,
+ (enum mlxsw_sp_l3proto) sfn_proto,
+ &addr, vni, adding);
+
+ type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE :
+ SWITCHDEV_FDB_DEL_TO_BRIDGE;
+ mlxsw_sp_fdb_call_notifiers(type, mac, vid, nve_dev, adding);
+
+ mlxsw_sp_fid_put(fid);
+
+ return;
+
+err_fdb_op:
+err_fdb_process:
+err_ip_resolve:
+ mlxsw_sp_fid_put(fid);
+err_fid_lookup:
+ /* Remove an FDB entry in case we cannot process it. Otherwise the
+ * device will keep sending the same notification over and over again.
+ */
+ mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index,
+ (enum mlxsw_sp_l3proto) sfn_proto, &addr,
+ false, true);
+}
+
static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
char *sfn_pl, int rec_index)
{
@@ -2471,6 +2727,14 @@ static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
rec_index, false);
break;
+ case MLXSW_REG_SFN_REC_TYPE_LEARNED_UNICAST_TUNNEL:
+ mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl,
+ rec_index, true);
+ break;
+ case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_UNICAST_TUNNEL:
+ mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl,
+ rec_index, false);
+ break;
}
}
@@ -2526,20 +2790,6 @@ struct mlxsw_sp_switchdev_event_work {
};
static void
-mlxsw_sp_switchdev_vxlan_addr_convert(const union vxlan_addr *vxlan_addr,
- enum mlxsw_sp_l3proto *proto,
- union mlxsw_sp_l3addr *addr)
-{
- if (vxlan_addr->sa.sa_family == AF_INET) {
- addr->addr4 = vxlan_addr->sin.sin_addr.s_addr;
- *proto = MLXSW_SP_L3_PROTO_IPV4;
- } else {
- addr->addr6 = vxlan_addr->sin6.sin6_addr;
- *proto = MLXSW_SP_L3_PROTO_IPV6;
- }
-}
-
-static void
mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_switchdev_event_work *
switchdev_work,
@@ -2604,7 +2854,8 @@ mlxsw_sp_switchdev_bridge_nve_fdb_event(struct mlxsw_sp_switchdev_event_work *
switchdev_work->event != SWITCHDEV_FDB_DEL_TO_DEVICE)
return;
- if (!switchdev_work->fdb_info.added_by_user)
+ if (switchdev_work->event == SWITCHDEV_FDB_ADD_TO_DEVICE &&
+ !switchdev_work->fdb_info.added_by_user)
return;
if (!netif_running(dev))
@@ -2947,10 +3198,274 @@ err_addr_alloc:
return NOTIFY_BAD;
}
-static struct notifier_block mlxsw_sp_switchdev_notifier = {
+struct notifier_block mlxsw_sp_switchdev_notifier = {
.notifier_call = mlxsw_sp_switchdev_event,
};
+static int
+mlxsw_sp_switchdev_vxlan_vlan_add(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_bridge_device *bridge_device,
+ const struct net_device *vxlan_dev, u16 vid,
+ bool flag_untagged, bool flag_pvid,
+ struct switchdev_trans *trans,
+ struct netlink_ext_ack *extack)
+{
+ struct vxlan_dev *vxlan = netdev_priv(vxlan_dev);
+ __be32 vni = vxlan->cfg.vni;
+ struct mlxsw_sp_fid *fid;
+ u16 old_vid;
+ int err;
+
+ /* We cannot have the same VLAN as PVID and egress untagged on multiple
+ * VxLAN devices. Note that we get this notification before the VLAN is
+ * actually added to the bridge's database, so it is not possible for
+ * the lookup function to return 'vxlan_dev'
+ */
+ if (flag_untagged && flag_pvid &&
+ mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev, vid))
+ return -EINVAL;
+
+ if (switchdev_trans_ph_prepare(trans))
+ return 0;
+
+ if (!netif_running(vxlan_dev))
+ return 0;
+
+ /* First case: FID is not associated with this VNI, but the new VLAN
+ * is both PVID and egress untagged. Need to enable NVE on the FID, if
+ * it exists
+ */
+ fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni);
+ if (!fid) {
+ if (!flag_untagged || !flag_pvid)
+ return 0;
+ return mlxsw_sp_bridge_8021q_vxlan_join(bridge_device,
+ vxlan_dev, vid, extack);
+ }
+
+ /* Second case: FID is associated with the VNI and the VLAN associated
+ * with the FID is the same as the notified VLAN. This means the flags
+ * (PVID / egress untagged) were toggled and that NVE should be
+ * disabled on the FID
+ */
+ old_vid = mlxsw_sp_fid_8021q_vid(fid);
+ if (vid == old_vid) {
+ if (WARN_ON(flag_untagged && flag_pvid)) {
+ mlxsw_sp_fid_put(fid);
+ return -EINVAL;
+ }
+ mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev);
+ mlxsw_sp_fid_put(fid);
+ return 0;
+ }
+
+ /* Third case: A new VLAN was configured on the VxLAN device, but this
+ * VLAN is not PVID, so there is nothing to do.
+ */
+ if (!flag_pvid) {
+ mlxsw_sp_fid_put(fid);
+ return 0;
+ }
+
+ /* Fourth case: Thew new VLAN is PVID, which means the VLAN currently
+ * mapped to the VNI should be unmapped
+ */
+ mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev);
+ mlxsw_sp_fid_put(fid);
+
+ /* Fifth case: The new VLAN is also egress untagged, which means the
+ * VLAN needs to be mapped to the VNI
+ */
+ if (!flag_untagged)
+ return 0;
+
+ err = mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, vid,
+ extack);
+ if (err)
+ goto err_vxlan_join;
+
+ return 0;
+
+err_vxlan_join:
+ mlxsw_sp_bridge_8021q_vxlan_join(bridge_device, vxlan_dev, old_vid,
+ NULL);
+ return err;
+}
+
+static void
+mlxsw_sp_switchdev_vxlan_vlan_del(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_bridge_device *bridge_device,
+ const struct net_device *vxlan_dev, u16 vid)
+{
+ struct vxlan_dev *vxlan = netdev_priv(vxlan_dev);
+ __be32 vni = vxlan->cfg.vni;
+ struct mlxsw_sp_fid *fid;
+
+ if (!netif_running(vxlan_dev))
+ return;
+
+ fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni);
+ if (!fid)
+ return;
+
+ /* A different VLAN than the one mapped to the VNI is deleted */
+ if (mlxsw_sp_fid_8021q_vid(fid) != vid)
+ goto out;
+
+ mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev);
+
+out:
+ mlxsw_sp_fid_put(fid);
+}
+
+static int
+mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev,
+ struct switchdev_notifier_port_obj_info *
+ port_obj_info)
+{
+ struct switchdev_obj_port_vlan *vlan =
+ SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj);
+ bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ struct switchdev_trans *trans = port_obj_info->trans;
+ struct mlxsw_sp_bridge_device *bridge_device;
+ struct netlink_ext_ack *extack;
+ struct mlxsw_sp *mlxsw_sp;
+ struct net_device *br_dev;
+ u16 vid;
+
+ extack = switchdev_notifier_info_to_extack(&port_obj_info->info);
+ br_dev = netdev_master_upper_dev_get(vxlan_dev);
+ if (!br_dev)
+ return 0;
+
+ mlxsw_sp = mlxsw_sp_lower_get(br_dev);
+ if (!mlxsw_sp)
+ return 0;
+
+ port_obj_info->handled = true;
+
+ bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
+ if (!bridge_device)
+ return -EINVAL;
+
+ if (!bridge_device->vlan_enabled)
+ return 0;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
+ int err;
+
+ err = mlxsw_sp_switchdev_vxlan_vlan_add(mlxsw_sp, bridge_device,
+ vxlan_dev, vid,
+ flag_untagged,
+ flag_pvid, trans,
+ extack);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static void
+mlxsw_sp_switchdev_vxlan_vlans_del(struct net_device *vxlan_dev,
+ struct switchdev_notifier_port_obj_info *
+ port_obj_info)
+{
+ struct switchdev_obj_port_vlan *vlan =
+ SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj);
+ struct mlxsw_sp_bridge_device *bridge_device;
+ struct mlxsw_sp *mlxsw_sp;
+ struct net_device *br_dev;
+ u16 vid;
+
+ br_dev = netdev_master_upper_dev_get(vxlan_dev);
+ if (!br_dev)
+ return;
+
+ mlxsw_sp = mlxsw_sp_lower_get(br_dev);
+ if (!mlxsw_sp)
+ return;
+
+ port_obj_info->handled = true;
+
+ bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
+ if (!bridge_device)
+ return;
+
+ if (!bridge_device->vlan_enabled)
+ return;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++)
+ mlxsw_sp_switchdev_vxlan_vlan_del(mlxsw_sp, bridge_device,
+ vxlan_dev, vid);
+}
+
+static int
+mlxsw_sp_switchdev_handle_vxlan_obj_add(struct net_device *vxlan_dev,
+ struct switchdev_notifier_port_obj_info *
+ port_obj_info)
+{
+ int err = 0;
+
+ switch (port_obj_info->obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev,
+ port_obj_info);
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
+static void
+mlxsw_sp_switchdev_handle_vxlan_obj_del(struct net_device *vxlan_dev,
+ struct switchdev_notifier_port_obj_info *
+ port_obj_info)
+{
+ switch (port_obj_info->obj->id) {
+ case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ mlxsw_sp_switchdev_vxlan_vlans_del(vxlan_dev, port_obj_info);
+ break;
+ default:
+ break;
+ }
+}
+
+static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
+ int err = 0;
+
+ switch (event) {
+ case SWITCHDEV_PORT_OBJ_ADD:
+ if (netif_is_vxlan(dev))
+ err = mlxsw_sp_switchdev_handle_vxlan_obj_add(dev, ptr);
+ else
+ err = switchdev_handle_port_obj_add(dev, ptr,
+ mlxsw_sp_port_dev_check,
+ mlxsw_sp_port_obj_add);
+ return notifier_from_errno(err);
+ case SWITCHDEV_PORT_OBJ_DEL:
+ if (netif_is_vxlan(dev))
+ mlxsw_sp_switchdev_handle_vxlan_obj_del(dev, ptr);
+ else
+ err = switchdev_handle_port_obj_del(dev, ptr,
+ mlxsw_sp_port_dev_check,
+ mlxsw_sp_port_obj_del);
+ return notifier_from_errno(err);
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block mlxsw_sp_switchdev_blocking_notifier = {
+ .notifier_call = mlxsw_sp_switchdev_blocking_event,
+};
+
u8
mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port)
{
@@ -2960,6 +3475,7 @@ mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port)
static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
+ struct notifier_block *nb;
int err;
err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
@@ -2974,17 +3490,33 @@ static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
return err;
}
+ nb = &mlxsw_sp_switchdev_blocking_notifier;
+ err = register_switchdev_blocking_notifier(nb);
+ if (err) {
+ dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev blocking notifier\n");
+ goto err_register_switchdev_blocking_notifier;
+ }
+
INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
return 0;
+
+err_register_switchdev_blocking_notifier:
+ unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
+ return err;
}
static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
{
+ struct notifier_block *nb;
+
cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw);
- unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
+ nb = &mlxsw_sp_switchdev_blocking_notifier;
+ unregister_switchdev_blocking_notifier(nb);
+
+ unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
}
int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)