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net/mlx5e: Add listener to DMAC filter trap event 

Add support for trapping packets which didn't match any DMAC in the MAC
table. Add a listener which adds/removes MAC trap rule in the flow
steering according to the trap's action trap/drop.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Aya Levin 2021-01-26 15:24:18 -08:00 committed by Jakub Kicinski
parent 70038b73e4
commit 49fdbd2341
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/en/trap.c
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@ -360,6 +360,11 @@ static int mlx5e_handle_action_trap(struct mlx5e_priv *priv, int trap_id)
if (err)
goto err_out;
break;
case DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER:
err = mlx5e_add_mac_trap(priv, trap_id, mlx5e_trap_get_tirn(priv->en_trap));
if (err)
goto err_out;
break;
default:
netdev_warn(priv->netdev, "%s: Unknown trap id %d\n", __func__, trap_id);
err = -EINVAL;
@ -379,6 +384,9 @@ static int mlx5e_handle_action_drop(struct mlx5e_priv *priv, int trap_id)
case DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER:
mlx5e_remove_vlan_trap(priv);
break;
case DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER:
mlx5e_remove_mac_trap(priv);
break;
default:
netdev_warn(priv->netdev, "%s: Unknown trap id %d\n", __func__, trap_id);
return -EINVAL;