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net/mlx5e: Don't match on Geneve options in case option masks are all zero

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The cited change added offload support for Geneve options without verifying
the validity of the options masks, this caused offload of rules with match
on Geneve options with class,type and data masks which are zero to fail.

Fix by ignoring the match on Geneve options in case option masks are
all zero.

Fixes: 9272e3df3023 ("net/mlx5e: Geneve, Add support for encap/decap flows offload")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maor Dickman 2021-02-16 13:39:18 +02:00 committed by Saeed Mahameed
parent 74640f0973
commit 385d40b042
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c
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@ -227,6 +227,10 @@ static int mlx5e_tc_tun_parse_geneve_options(struct mlx5e_priv *priv,
option_key = (struct geneve_opt *)&enc_opts.key->data[0];
option_mask = (struct geneve_opt *)&enc_opts.mask->data[0];
if (option_mask->opt_class == 0 && option_mask->type == 0 &&
!memchr_inv(option_mask->opt_data, 0, option_mask->length * 4))
return 0;
if (option_key->length > max_tlv_option_data_len) {
NL_SET_ERR_MSG_MOD(extack,
"Matching on GENEVE options: unsupported option len");