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net/mlx5e: Fix nest_level for vlan pop action 

Current value of nest_level, assigned from net_device lower_level value,
does not reflect the actual number of vlan headers, needed to pop.
For ex., if we have untagged ingress traffic sended over vlan devices,
instead of one pop action, driver will perform two pop actions.
To fix that, calculate nest_level as difference between vlan device and
parent device lower_levels.

Fixes: f3b0a18bb6 ("net: remove unnecessary variables and callback")
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Dmytro Linkin 2020-04-01 14:41:27 +03:00 committed by Saeed Mahameed
parent d19987ccf5
commit 70f478ca08
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -3558,12 +3558,13 @@ static int add_vlan_pop_action(struct mlx5e_priv *priv,
struct mlx5_esw_flow_attr *attr,
u32 *action)
{
int nest_level = attr->parse_attr->filter_dev->lower_level;
struct flow_action_entry vlan_act = {
.id = FLOW_ACTION_VLAN_POP,
};
int err = 0;
int nest_level, err = 0;
nest_level = attr->parse_attr->filter_dev->lower_level -
priv->netdev->lower_level;
while (nest_level--) {
err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
if (err)