core/en/rss.h

0001 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
0002 /* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */
0003
0004 #ifndef __MLX5_EN_RSS_H__
0005 #define __MLX5_EN_RSS_H__
0006
0007 #include "rqt.h"
0008 #include "tir.h"
0009 #include "fs.h"
0010
0011 struct mlx5e_rss_params_traffic_type
0012 mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
0013
0014 struct mlx5e_rss;
0015
0016 struct mlx5e_rss *mlx5e_rss_alloc(void);
0017 void mlx5e_rss_free(struct mlx5e_rss *rss);
0018 int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
0019            bool inner_ft_support, u32 drop_rqn,
0020            const struct mlx5e_packet_merge_param *init_pkt_merge_param);
0021 int mlx5e_rss_init_no_tirs(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
0022                bool inner_ft_support, u32 drop_rqn);
0023 int mlx5e_rss_cleanup(struct mlx5e_rss *rss);
0024
0025 void mlx5e_rss_refcnt_inc(struct mlx5e_rss *rss);
0026 void mlx5e_rss_refcnt_dec(struct mlx5e_rss *rss);
0027 unsigned int mlx5e_rss_refcnt_read(struct mlx5e_rss *rss);
0028
0029 u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
0030                bool inner);
0031 int mlx5e_rss_obtain_tirn(struct mlx5e_rss *rss,
0032               enum mlx5_traffic_types tt,
0033               const struct mlx5e_packet_merge_param *init_pkt_merge_param,
0034               bool inner, u32 *tirn);
0035
0036 void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, unsigned int num_rqns);
0037 void mlx5e_rss_disable(struct mlx5e_rss *rss);
0038
0039 int mlx5e_rss_packet_merge_set_param(struct mlx5e_rss *rss,
0040                      struct mlx5e_packet_merge_param *pkt_merge_param);
0041 int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc);
0042 int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir,
0043                const u8 *key, const u8 *hfunc,
0044                u32 *rqns, unsigned int num_rqns);
0045 struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss);
0046 u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt);
0047 int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
0048                   u8 rx_hash_fields);
0049 void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch);
0050 #endif /* __MLX5_EN_RSS_H__ */