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mlxsw: spectrum_switchdev: remove transactional logic for VLAN objects

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As of commit 457e20d65924 ("mlxsw: spectrum_switchdev: Avoid returning
errors in commit phase"), the mlxsw driver performs the VLAN object
offloading during the prepare phase. So conversion just seems to be a
matter of removing the code that was running in the commit phase.

Ido Schimmel explains that the reason why mlxsw_sp_span_respin is called
unconditionally is because the bridge driver will ignore -EOPNOTSUPP and
actually add the VLAN on the bridge device - see commit 9c86ce2c1ae3
("net: bridge: Notify about bridge VLANs") and commit ea4721751977
("mlxsw: spectrum_switchdev: Ignore bridge VLAN events"). Since the VLAN
was successfully added on the bridge device, mlxsw_sp_span_respin_work()
should be able to resolve the egress port for a packet that is mirrored
to a gre tap and passes through the bridge device. Therefore keep the
logic as it is.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2021-01-09 02:01:55 +02:00 committed by Jakub Kicinski
parent 417b99bf75
commit 4b400fea76
1 changed files with 4 additions and 33 deletions
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37
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
View File

@ -1196,7 +1196,6 @@ 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 netlink_ext_ack *extack)
{
bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
@ -1209,8 +1208,7 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
int err = 0;
if ((vlan->flags & BRIDGE_VLAN_INFO_BRENTRY) &&
br_vlan_enabled(orig_dev) &&
switchdev_trans_ph_prepare(trans))
br_vlan_enabled(orig_dev))
err = mlxsw_sp_br_ban_rif_pvid_change(mlxsw_sp,
orig_dev, vlan);
if (!err)
@ -1218,9 +1216,6 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
return err;
}
if (switchdev_trans_ph_commit(trans))
return 0;
bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
if (WARN_ON(!bridge_port))
return -EINVAL;
@ -1764,16 +1759,13 @@ static int mlxsw_sp_port_obj_add(struct net_device *dev,
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
const struct switchdev_obj_port_vlan *vlan;
struct switchdev_trans trans;
int err = 0;
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
trans.ph_prepare = true;
err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, &trans,
extack);
err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, extack);
/* The event is emitted before the changes are actually
* applied to the bridge. Therefore schedule the respin
@ -1781,13 +1773,6 @@ static int mlxsw_sp_port_obj_add(struct net_device *dev,
* updated bridge state.
*/
mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
if (err)
break;
trans.ph_prepare = false;
err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, &trans,
extack);
break;
case SWITCHDEV_OBJ_ID_PORT_MDB:
err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
@ -3351,8 +3336,7 @@ out:
static int
mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev,
struct switchdev_notifier_port_obj_info *
port_obj_info,
struct switchdev_trans *trans)
port_obj_info)
{
struct switchdev_obj_port_vlan *vlan =
SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj);
@ -3374,9 +3358,6 @@ mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev,
port_obj_info->handled = true;
if (switchdev_trans_ph_commit(trans))
return 0;
bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
if (!bridge_device)
return -EINVAL;
@ -3427,22 +3408,12 @@ mlxsw_sp_switchdev_handle_vxlan_obj_add(struct net_device *vxlan_dev,
struct switchdev_notifier_port_obj_info *
port_obj_info)
{
struct switchdev_trans trans;
int err = 0;
switch (port_obj_info->obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
trans.ph_prepare = true;
err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev,
port_obj_info,
&trans);
if (err)
break;
trans.ph_prepare = false;
err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev,
port_obj_info,
&trans);
port_obj_info);
break;
default:
break;