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net/mlx5e: Offload TC matching on ip ttl

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Enable offloading of TC matching on ip ttl / hop-limit

As matching on ttl is supported only by newer HW brands (ConnectX-5),
we should do capability check before attempting to offload that.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz 2017-06-07 17:49:56 +03:00 committed by Saeed Mahameed
parent 1f97a5265f
commit a8ade55ffd
2 changed files with 11 additions and 5 deletions
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11
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@ -904,11 +904,16 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2);
if (mask->tos)
*min_inline = MLX5_INLINE_MODE_IP;
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, mask->ttl);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, key->ttl);
if (mask->ttl) /* currently not supported */
if (mask->ttl &&
!MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev,
ft_field_support.outer_ipv4_ttl))
return -EOPNOTSUPP;
if (mask->tos || mask->ttl)
*min_inline = MLX5_INLINE_MODE_IP;
}
if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {

5
include/linux/mlx5/mlx5_ifc.h
View File

@ -243,7 +243,7 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
u8 outer_first_prio[0x1];
u8 outer_first_cfi[0x1];
u8 outer_first_vid[0x1];
u8 reserved_at_7[0x1];
u8 outer_ipv4_ttl[0x1];
u8 outer_second_prio[0x1];
u8 outer_second_cfi[0x1];
u8 outer_second_vid[0x1];
@ -380,7 +380,8 @@ struct mlx5_ifc_fte_match_set_lyr_2_4_bits {
u8 tcp_sport[0x10];
u8 tcp_dport[0x10];
u8 reserved_at_c0[0x20];
u8 reserved_at_c0[0x18];
u8 ttl_hoplimit[0x8];
u8 udp_sport[0x10];
u8 udp_dport[0x10];