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Commit 3d80d1a2 authored by Or Gerlitz's avatar Or Gerlitz Committed by David S. Miller
Browse files

net/mlx5: E-Switch, Add API to configure rules for the offloaded mode 



This allows for upper levels in the driver, e.g the TC offload code to add
e-switch offloaded steering rules. The caller provides the rule spec for
matching, action, source and destination vports.

Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1033665e

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

+6 −0
Original line number Diff line number Diff line
@@ -222,6 +222,12 @@ int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw, 
				 int vport,

				 struct ifla_vf_stats *vf_stats);



struct mlx5_flow_spec;



struct mlx5_flow_rule *

mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,

				struct mlx5_flow_spec *spec,

				u32 action, u32 src_vport, u32 dst_vport);

struct mlx5_flow_rule *

mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32 tirn);

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

+43 −0
Original line number Diff line number Diff line
@@ -43,6 +43,49 @@ enum { 
	FDB_SLOW_PATH

};



struct mlx5_flow_rule *

mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,

				struct mlx5_flow_spec *spec,

				u32 action, u32 src_vport, u32 dst_vport)

{

	struct mlx5_flow_destination dest = { 0 };

	struct mlx5_fc *counter = NULL;

	struct mlx5_flow_rule *rule;

	void *misc;



	if (esw->mode != SRIOV_OFFLOADS)

		return ERR_PTR(-EOPNOTSUPP);



	if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {

		dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;

		dest.vport_num = dst_vport;

		action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;

	} else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {

		counter = mlx5_fc_create(esw->dev, true);

		if (IS_ERR(counter))

			return ERR_CAST(counter);

		dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;

		dest.counter = counter;

	}



	misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);

	MLX5_SET(fte_match_set_misc, misc, source_port, src_vport);



	misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);

	MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);



	spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS |

				      MLX5_MATCH_MISC_PARAMETERS;



	rule = mlx5_add_flow_rule((struct mlx5_flow_table *)esw->fdb_table.fdb,

				  spec, action, 0, &dest);



	if (IS_ERR(rule))

		mlx5_fc_destroy(esw->dev, counter);



	return rule;

}



static struct mlx5_flow_rule *

mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, int vport, u32 sqn)

{