Commit 34583bee authored by Erez Shitrit's avatar Erez Shitrit Committed by Saeed Mahameed
Browse files

net/mlx5: DR, Create multi-destination table for SW-steering use 



Currently SW steering doesn't have the means to access HW iterators to
support multi-destination (FTEs) flow table entries.

In order to support multi-destination FTEs for port-mirroring, SW
steering will create a dedicated multi-destination FW managed flow table
and FTEs via direct FW commands that we introduced in the previous patch.

Signed-off-by: default avatarErez Shitrit <erezsh@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 6de03d2d

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c

+67 −0
Original line number Diff line number Diff line
@@ -97,3 +97,70 @@ void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn, 


	kfree(recalc_cs_ft);

}



int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn,

			    struct mlx5dr_cmd_flow_destination_hw_info *dest,

			    int num_dest,

			    bool reformat_req,

			    u32 *tbl_id,

			    u32 *group_id)

{

	struct mlx5dr_cmd_create_flow_table_attr ft_attr = {};

	struct mlx5dr_cmd_fte_info fte_info = {};

	u32 val[MLX5_ST_SZ_DW_MATCH_PARAM] = {};

	struct mlx5dr_cmd_ft_info ft_info = {};

	int ret;



	ft_attr.table_type = MLX5_FLOW_TABLE_TYPE_FDB;

	ft_attr.level = dmn->info.caps.max_ft_level - 2;

	ft_attr.reformat_en = reformat_req;

	ft_attr.decap_en = reformat_req;



	ret = mlx5dr_cmd_create_flow_table(dmn->mdev, &ft_attr, NULL, tbl_id);

	if (ret) {

		mlx5dr_err(dmn, "Failed creating multi dest FW flow table %d\n", ret);

		return ret;

	}



	ret = mlx5dr_cmd_create_empty_flow_group(dmn->mdev,

						 MLX5_FLOW_TABLE_TYPE_FDB,

						 *tbl_id, group_id);

	if (ret) {

		mlx5dr_err(dmn, "Failed creating multi dest FW flow group %d\n", ret);

		goto free_flow_table;

	}



	ft_info.id = *tbl_id;

	ft_info.type = FS_FT_FDB;

	fte_info.action.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;

	fte_info.dests_size = num_dest;

	fte_info.val = val;

	fte_info.dest_arr = dest;



	ret = mlx5dr_cmd_set_fte(dmn->mdev, 0, 0, &ft_info, *group_id, &fte_info);

	if (ret) {

		mlx5dr_err(dmn, "Failed setting fte into table %d\n", ret);

		goto free_flow_group;

	}



	return 0;



free_flow_group:

	mlx5dr_cmd_destroy_flow_group(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB,

				      *tbl_id, *group_id);

free_flow_table:

	mlx5dr_cmd_destroy_flow_table(dmn->mdev, *tbl_id,

				      MLX5_FLOW_TABLE_TYPE_FDB);

	return ret;

}



void mlx5dr_fw_destroy_md_tbl(struct mlx5dr_domain *dmn,

			      u32 tbl_id, u32 group_id)

{

	mlx5dr_cmd_del_flow_table_entry(dmn->mdev, FS_FT_FDB, tbl_id);

	mlx5dr_cmd_destroy_flow_group(dmn->mdev,

				      MLX5_FLOW_TABLE_TYPE_FDB,

				      tbl_id, group_id);

	mlx5dr_cmd_destroy_flow_table(dmn->mdev, tbl_id,

				      MLX5_FLOW_TABLE_TYPE_FDB);

}

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h

+8 −0
Original line number Diff line number Diff line
@@ -1108,4 +1108,12 @@ void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn, 
int mlx5dr_domain_cache_get_recalc_cs_ft_addr(struct mlx5dr_domain *dmn,

					      u32 vport_num,

					      u64 *rx_icm_addr);

int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn,

			    struct mlx5dr_cmd_flow_destination_hw_info *dest,

			    int num_dest,

			    bool reformat_req,

			    u32 *tbl_id,

			    u32 *group_id);

void mlx5dr_fw_destroy_md_tbl(struct mlx5dr_domain *dmn, u32 tbl_id,

			      u32 group_id);

#endif  /* _DR_TYPES_H_ */

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