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
35bool mlx5e_rss_get_inner_ft_support(struct mlx5e_rss *rss);
36u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
37 bool inner);
38bool mlx5e_rss_valid_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, bool inner);
39u32 mlx5e_rss_get_rqtn(struct mlx5e_rss *rss);
40int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
41 enum mlx5_traffic_types tt,
42 const struct mlx5e_packet_merge_param *init_pkt_merge_param,
43 bool inner, u32 *tirn);
44
45void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, u32 *vhca_ids, unsigned int num_rqns);
46void mlx5e_rss_disable(struct mlx5e_rss *rss);
47
48int mlx5e_rss_packet_merge_set_param(struct mlx5e_rss *rss,
49 struct mlx5e_packet_merge_param *pkt_merge_param);
50int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc, bool *symmetric);
51int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir,
52 const u8 *key, const u8 *hfunc, const bool *symmetric,
53 u32 *rqns, u32 *vhca_ids, unsigned int num_rqns);
54struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss);
55u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt);
56int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
57 u8 rx_hash_fields);
58void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch);
59#endif /* __MLX5_EN_RSS_H__ */
60

source code of linux/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h