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

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Offload TC rule on a VLAN device by matching the VLAN properties
of the VLAN device and emulating vlan pop actions.

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 2019-03-14 07:50:12 +00:00 committed by Saeed Mahameed
parent 278748a95a
commit 35a605db16
2 changed files with 44 additions and 5 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
View file

@ -795,7 +795,8 @@ static int mlx5e_nic_rep_netdevice_event(struct notifier_block *nb,
struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
if (!mlx5e_tc_tun_device_to_offload(priv, netdev))
if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
!is_vlan_dev(netdev))
return NOTIFY_OK;
switch (event) {

46
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View file

@ -1541,11 +1541,23 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
if (match.mask->n_proto)
*match_level = MLX5_MATCH_L2;
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN) ||
is_vlan_dev(filter_dev)) {
struct flow_dissector_key_vlan filter_dev_mask;
struct flow_dissector_key_vlan filter_dev_key;
struct flow_match_vlan match;
flow_rule_match_vlan(rule, &match);
if (is_vlan_dev(filter_dev)) {
match.key = &filter_dev_key;
match.key->vlan_id = vlan_dev_vlan_id(filter_dev);
match.key->vlan_tpid = vlan_dev_vlan_proto(filter_dev);
match.key->vlan_priority = 0;
match.mask = &filter_dev_mask;
memset(match.mask, 0xff, sizeof(*match.mask));
match.mask->vlan_priority = 0;
} else {
flow_rule_match_vlan(rule, &match);
}
if (match.mask->vlan_id ||
match.mask->vlan_priority ||
match.mask->vlan_tpid) {
@ -2252,7 +2264,8 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
actions = flow->nic_attr->action;
if (flow->flags & MLX5E_TC_FLOW_EGRESS &&
!(actions & MLX5_FLOW_CONTEXT_ACTION_DECAP))
!((actions & MLX5_FLOW_CONTEXT_ACTION_DECAP) ||
(actions & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP)))
return false;
if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
@ -2608,6 +2621,25 @@ static int add_vlan_push_action(struct mlx5e_priv *priv,
return err;
}
static int add_vlan_pop_action(struct mlx5e_priv *priv,
struct mlx5_esw_flow_attr *attr,
u32 *action)
{
int nest_level = vlan_get_encap_level(attr->parse_attr->filter_dev);
struct flow_action_entry vlan_act = {
.id = FLOW_ACTION_VLAN_POP,
};
int err = 0;
while (nest_level--) {
err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
if (err)
return err;
}
return err;
}
static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
struct flow_action *flow_action,
struct mlx5e_tc_flow *flow,
@ -2695,6 +2727,12 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
if (err)
return err;
}
if (is_vlan_dev(parse_attr->filter_dev)) {
err = add_vlan_pop_action(priv, attr,
&action);
if (err)
return err;
}
if (!mlx5e_eswitch_rep(out_dev))
return -EOPNOTSUPP;