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net/mlx5e: Err if asked to offload TC match on frag being first

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The HW doesn't support matching on frag first/later, return error if we are
asked to offload that.

Fixes: 3f7d0eb42d ("net/mlx5e: Offload TC matching on packets being IP fragments")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Roi Dayan 2018-03-22 18:51:37 +02:00 committed by Saeed Mahameed
parent 88d725bbb4
commit f85900c3e1
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -1261,6 +1261,10 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
f->mask); f->mask);
addr_type = key->addr_type; addr_type = key->addr_type;
/* the HW doesn't support frag first/later */
if (mask->flags & FLOW_DIS_FIRST_FRAG)
return -EOPNOTSUPP;
if (mask->flags & FLOW_DIS_IS_FRAGMENT) { if (mask->flags & FLOW_DIS_IS_FRAGMENT) {
MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag,