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net/mlx5e: Verify that rule has at least one fwd/drop action

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[ Upstream commit ae2741e2b6ce2bf1b656b1152c4ef147ff35b096 ]

Currently, mlx5 tc layer doesn't verify that rule has at least one forward
or drop action which leads to following firmware syndrome when user tries
to offload such action:

[ 1824.860501] mlx5_core 0000:81:00.0: mlx5_cmd_check:753:(pid 29458): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x144b7a)

Add check at the end of parse_tc_fdb_actions() that verifies that resulting
attribute has action fwd or drop flag set.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vlad Buslov 2019-09-11 21:14:54 +03:00 • committed by Greg Kroah-Hartman
commit 39a1c83595
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View file

@ -3443,6 +3443,12 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
}
if (!(attr->action &
(MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_DROP))) {
NL_SET_ERR_MSG(extack, "Rule must have at least one forward/drop action");
return -EOPNOTSUPP;
}
if (attr->split_count > 0 && !mlx5_esw_has_fwd_fdb(priv->mdev)) {
NL_SET_ERR_MSG_MOD(extack,
"current firmware doesn't support split rule for port mirroring");