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Commit a8ade55f authored by Or Gerlitz's avatar Or Gerlitz Committed by Saeed Mahameed
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net/mlx5e: Offload TC matching on ip ttl 



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: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: default avatarPaul Blakey <paulb@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 1f97a526

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

+8 −3
Original line number Diff line number Diff line
@@ -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)) {

include/linux/mlx5/mlx5_ifc.h

+3 −2
Original line number Diff line number Diff line
@@ -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];