net/mlx5: E-Switch, Use vport metadata matching only when mandatory (1e62e222) · Commits · 戴 / test

Multi-port RoCE mode requires tagging traffic that passes through the vport. This matching can cause performance degradation, therefore disable it and use the legacy matching on vhca_id and source_port when possible. Fixes: ("net/mlx5: E-Switch, Enable vport metadata matching if firmware supports it") Signed-off-by:

Majd Dibbiny <majd@mellanox.com> Reviewed-by:

Mark Bloch <markb@mellanox.com> Signed-off-by:

Saeed Mahameed <saeedm@mellanox.com>

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

+13 −1

Original line number	Diff line number	Diff line
		@@ -2021,6 +2021,18 @@ esw_check_vport_match_metadata_supported(const struct mlx5_eswitch *esw)
		return true;
		}

		static bool
		esw_check_vport_match_metadata_mandatory(const struct mlx5_eswitch *esw)
		{
		return mlx5_core_mp_enabled(esw->dev);
		}

		static bool esw_use_vport_metadata(const struct mlx5_eswitch *esw)
		{
		return esw_check_vport_match_metadata_mandatory(esw) &&
		esw_check_vport_match_metadata_supported(esw);
		}

		int
		esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
		struct mlx5_vport *vport)
		@@ -2059,7 +2071,7 @@ static int esw_create_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
		struct mlx5_vport *vport;
		int err;

		if (esw_check_vport_match_metadata_supported(esw))
		if (esw_use_vport_metadata(esw))
		esw->flags \|= MLX5_ESWITCH_VPORT_MATCH_METADATA;

		vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);

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