1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/* Copyright (c) 2021, Mellanox Technologies inc. All rights reserved. */
3
4#ifndef __MLX5_EN_RQT_H__
5#define __MLX5_EN_RQT_H__
6
7#include <linux/kernel.h>
8
9#define MLX5E_INDIR_MIN_RQT_SIZE (BIT(8))
10
11struct mlx5_core_dev;
12
13struct mlx5e_rss_params_indir {
14	u32 *table;
15	u32 actual_table_size;
16	u32 max_table_size;
17};
18
19void mlx5e_rss_params_indir_init_uniform(struct mlx5e_rss_params_indir *indir,
20					 unsigned int num_channels);
21
22struct mlx5e_rqt {
23	struct mlx5_core_dev *mdev; /* primary */
24	u32 rqtn;
25	u16 size;
26};
27
28int mlx5e_rqt_init_direct(struct mlx5e_rqt *rqt, struct mlx5_core_dev *mdev,
29			  bool indir_enabled, u32 init_rqn, u32 indir_table_size);
30int mlx5e_rqt_init_indir(struct mlx5e_rqt *rqt, struct mlx5_core_dev *mdev,
31			 u32 *rqns, u32 *vhca_ids, unsigned int num_rqns,
32			 u8 hfunc, struct mlx5e_rss_params_indir *indir);
33void mlx5e_rqt_destroy(struct mlx5e_rqt *rqt);
34
35static inline u32 mlx5e_rqt_get_rqtn(struct mlx5e_rqt *rqt)
36{
37	return rqt->rqtn;
38}
39
40u32 mlx5e_rqt_size(struct mlx5_core_dev *mdev, unsigned int num_channels);
41unsigned int mlx5e_rqt_max_num_channels_allowed_for_xor8(void);
42int mlx5e_rqt_redirect_direct(struct mlx5e_rqt *rqt, u32 rqn, u32 *vhca_id);
43int mlx5e_rqt_redirect_indir(struct mlx5e_rqt *rqt, u32 *rqns, u32 *vhca_ids,
44			     unsigned int num_rqns,
45			     u8 hfunc, struct mlx5e_rss_params_indir *indir);
46
47#endif /* __MLX5_EN_RQT_H__ */
48