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authorAlaa Hleihel <alaa@nvidia.com>2021-03-10 17:01:46 +0200
committerSaeed Mahameed <saeedm@nvidia.com>2021-03-22 13:16:40 -0700
commit7d6c86e3ccb5ceea767df5c7a9a17cdfccd3df9a (patch)
treefedc0cce6ac395a2c992082e4d7dacc06f59dbd2 /drivers/net
parenta07231084da2207629b42244380ae2f1e10bd9b4 (diff)
net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP
Currently, we support hardware offload only for MPLS over UDP. However, rules matching on MPLS parameters are now wrongly offloaded for regular MPLS, without actually taking the parameters into consideration when doing the offload. Fix it by rejecting such unsupported rules. Fixes: 72046a91d134 ("net/mlx5e: Allow to match on mpls parameters") Signed-off-by: Alaa Hleihel <alaa@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_tc.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 0cacf46dc950..3359098c51d4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2296,6 +2296,16 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
*match_level = MLX5_MATCH_L4;
}
+ /* Currenlty supported only for MPLS over UDP */
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_MPLS) &&
+ !netif_is_bareudp(filter_dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Matching on MPLS is supported only for MPLS over UDP");
+ netdev_err(priv->netdev,
+ "Matching on MPLS is supported only for MPLS over UDP\n");
+ return -EOPNOTSUPP;
+ }
+
return 0;
}