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net/mlx5e: Offload TC e-switch rules with egress VLAN device

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Upon redirection to an uplink VLAN device, emulate vlan push actions
according to the VLAN properties of the VLAN device and redirect to
the uplink.

Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Eli Britstein 2018-12-16 16:57:44 +02:00 committed by Saeed Mahameed
parent 6fca9d1e60
commit 278748a95a
1 changed files with 34 additions and 0 deletions
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34
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -2582,6 +2582,32 @@ static int parse_tc_vlan_action(struct mlx5e_priv *priv,
return 0;
}
static int add_vlan_push_action(struct mlx5e_priv *priv,
struct mlx5_esw_flow_attr *attr,
struct net_device **out_dev,
u32 *action)
{
struct net_device *vlan_dev = *out_dev;
struct flow_action_entry vlan_act = {
.id = FLOW_ACTION_VLAN_PUSH,
.vlan.vid = vlan_dev_vlan_id(vlan_dev),
.vlan.proto = vlan_dev_vlan_proto(vlan_dev),
.vlan.prio = 0,
};
int err;
err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
if (err)
return err;
*out_dev = dev_get_by_index_rcu(dev_net(vlan_dev),
dev_get_iflink(vlan_dev));
if (is_vlan_dev(*out_dev))
err = add_vlan_push_action(priv, attr, out_dev, action);
return err;
}
static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
struct flow_action *flow_action,
struct mlx5e_tc_flow *flow,
@ -2662,6 +2688,14 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
uplink_upper == out_dev)
out_dev = uplink_dev;
if (is_vlan_dev(out_dev)) {
err = add_vlan_push_action(priv, attr,
&out_dev,
&action);
if (err)
return err;
}
if (!mlx5e_eswitch_rep(out_dev))
return -EOPNOTSUPP;