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Commit fd7da28b authored by Or Gerlitz's avatar Or Gerlitz Committed by David S. Miller
Browse files

net/mlx5e: Offload TC matching on ip tos / traffic-class 



Enable offloading of TC matching on ipv4 tos or ipv6 traffic-class.

Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e77834ec

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

+25 −1
Original line number Diff line number Diff line
@@ -582,7 +582,8 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, 
	      BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |

	      BIT(FLOW_DISSECTOR_KEY_ENC_PORTS)	|

	      BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) |

	      BIT(FLOW_DISSECTOR_KEY_TCP))) {

	      BIT(FLOW_DISSECTOR_KEY_TCP) |

	      BIT(FLOW_DISSECTOR_KEY_IP))) {

		netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",

			    f->dissector->used_keys);

		return -EOPNOTSUPP;
@@ -809,6 +810,29 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, 
			*min_inline = MLX5_INLINE_MODE_TCP_UDP;

	}



	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IP)) {

		struct flow_dissector_key_ip *key =

			skb_flow_dissector_target(f->dissector,

						  FLOW_DISSECTOR_KEY_IP,

						  f->key);

		struct flow_dissector_key_ip *mask =

			skb_flow_dissector_target(f->dissector,

						  FLOW_DISSECTOR_KEY_IP,

						  f->mask);



		MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3);

		MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3);



		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;



		if (mask->ttl) /* currently not supported */

			return -EOPNOTSUPP;

	}



	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) {

		struct flow_dissector_key_tcp *key =

			skb_flow_dissector_target(f->dissector,