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net/mlx5: Fix setting of devlink traps in switchdev mode

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Prevent setting of devlink traps on the uplink while in switchdev mode.
In this mode, it is the SW switch responsibility to handle both packets
with a mismatch in destination MAC or VLAN ID. Therefore, there are no
flow steering tables to trap undesirable packets and driver crashes upon
setting a trap.

Fixes: 241dc159391f ("net/mlx5: Notify on trap action by blocking event")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Aya Levin 2021-04-12 17:50:08 +03:00 committed by Saeed Mahameed
parent 2afeec08ab
commit 41bafb31dc
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/devlink.c
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@ -246,6 +246,11 @@ static int mlx5_devlink_trap_action_set(struct devlink *devlink,
struct mlx5_devlink_trap *dl_trap;
int err = 0;
if (is_mdev_switchdev_mode(dev)) {
NL_SET_ERR_MSG_MOD(extack, "Devlink traps can't be set in switchdev mode");
return -EOPNOTSUPP;
}
dl_trap = mlx5_find_trap_by_id(dev, trap->id);
if (!dl_trap) {
mlx5_core_err(dev, "Devlink trap: Set action on invalid trap id 0x%x", trap->id);