net/mlx5: HWS, added tables handling

Flow tables are SW objects that are comprised of list of matchers,
that in turn define the properties of a flow to match on and set
of actions to perform on the flows in case of match hit or miss.
Reviewed-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_table.h

+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#ifndef MLX5HWS_TABLE_H_
+#define MLX5HWS_TABLE_H_
+
+struct mlx5hws_default_miss {
+	/* My miss table */
+	struct mlx5hws_table *miss_tbl;
+	struct list_head next;
+	/* Tables missing to my table */
+	struct list_head head;
+};
+
+struct mlx5hws_table {
+	struct mlx5hws_context *ctx;
+	u32 ft_id;
+	enum mlx5hws_table_type type;
+	u32 fw_ft_type;
+	u32 level;
+	struct list_head matchers_list;
+	struct list_head tbl_list_node;
+	struct mlx5hws_default_miss default_miss;
+};
+
+static inline
+u32 mlx5hws_table_get_fw_ft_type(enum mlx5hws_table_type type,
+				 u8 *ret_type)
+{
+	if (type != MLX5HWS_TABLE_TYPE_FDB)
+		return -EOPNOTSUPP;
+
+	*ret_type = FS_FT_FDB;
+
+	return 0;
+}
+
+static inline
+u32 mlx5hws_table_get_res_fw_ft_type(enum mlx5hws_table_type tbl_type,
+				     bool is_mirror)
+{
+	if (tbl_type == MLX5HWS_TABLE_TYPE_FDB)
+		return is_mirror ? FS_FT_FDB_TX : FS_FT_FDB_RX;
+
+	return 0;
+}
+
+int mlx5hws_table_create_default_ft(struct mlx5_core_dev *mdev,
+				    struct mlx5hws_table *tbl,
+				    u32 *ft_id);
+
+void mlx5hws_table_destroy_default_ft(struct mlx5hws_table *tbl,
+				      u32 ft_id);
+
+int mlx5hws_table_connect_to_miss_table(struct mlx5hws_table *src_tbl,
+					struct mlx5hws_table *dst_tbl);
+
+int mlx5hws_table_update_connected_miss_tables(struct mlx5hws_table *dst_tbl);
+
+int mlx5hws_table_ft_set_default_next_ft(struct mlx5hws_table *tbl, u32 ft_id);
+
+int mlx5hws_table_ft_set_next_rtc(struct mlx5hws_context *ctx,
+				  u32 ft_id,
+				  u32 fw_ft_type,
+				  u32 rtc_0_id,
+				  u32 rtc_1_id);
+
+#endif /* MLX5HWS_TABLE_H_ */