1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
 2/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */
 3
 4#ifndef __MLX5_EN_RSS_H__
 5#define __MLX5_EN_RSS_H__
 6
 7#include "rqt.h"
 8#include "tir.h"
 9#include "fs.h"
10
11enum mlx5e_rss_init_type {
12	MLX5E_RSS_INIT_NO_TIRS = 0,
13	MLX5E_RSS_INIT_TIRS
14};
15
16struct mlx5e_rss_params_traffic_type
17mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
18
19struct mlx5e_rss;
20
21int mlx5e_rss_params_indir_init(struct mlx5e_rss_params_indir *indir, struct mlx5_core_dev *mdev,
22				u32 actual_table_size, u32 max_table_size);
23void mlx5e_rss_params_indir_cleanup(struct mlx5e_rss_params_indir *indir);
24void mlx5e_rss_params_indir_modify_actual_size(struct mlx5e_rss *rss, u32 num_channels);
25struct mlx5e_rss *mlx5e_rss_init(struct mlx5_core_dev *mdev, bool inner_ft_support, u32 drop_rqn,
26				 const struct mlx5e_packet_merge_param *init_pkt_merge_param,
27				 enum mlx5e_rss_init_type type, unsigned int nch,
28				 unsigned int max_nch);
29int mlx5e_rss_cleanup(struct mlx5e_rss *rss);
30
31void mlx5e_rss_refcnt_inc(struct mlx5e_rss *rss);
32void mlx5e_rss_refcnt_dec(struct mlx5e_rss *rss);
33unsigned int mlx5e_rss_refcnt_read(struct mlx5e_rss *rss);
34
35u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
36		       bool inner);
37int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
38			  enum mlx5_traffic_types tt,
39			  const struct mlx5e_packet_merge_param *init_pkt_merge_param,
40			  bool inner, u32 *tirn);
41
42void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, u32 *vhca_ids, unsigned int num_rqns);
43void mlx5e_rss_disable(struct mlx5e_rss *rss);
44
45int mlx5e_rss_packet_merge_set_param(struct mlx5e_rss *rss,
46				     struct mlx5e_packet_merge_param *pkt_merge_param);
47int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc);
48int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir,
49		       const u8 *key, const u8 *hfunc,
50		       u32 *rqns, u32 *vhca_ids, unsigned int num_rqns);
51struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss);
52u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt);
53int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
54			      u8 rx_hash_fields);
55void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch);
56#endif /* __MLX5_EN_RSS_H__ */