rx_res.h

 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_RX_RES_H__
 5#define __MLX5_EN_RX_RES_H__
 6
 7#include <linux/kernel.h>
 8#include "rqt.h"
 9#include "tir.h"
10#include "fs.h"
11#include "rss.h"
12
13#define MLX5E_MAX_NUM_RSS 16
14
15struct mlx5e_rx_res;
16
17struct mlx5e_channels;
18struct mlx5e_rss_params_hash;
19
20enum mlx5e_rx_res_features {
21	MLX5E_RX_RES_FEATURE_INNER_FT = BIT(0),
22	MLX5E_RX_RES_FEATURE_PTP = BIT(1),
23	MLX5E_RX_RES_FEATURE_MULTI_VHCA = BIT(2),
24	MLX5E_RX_RES_FEATURE_SELF_LB_BLOCK = BIT(3),
25};
26
27/* Setup */
28struct mlx5e_rx_res *
29mlx5e_rx_res_create(struct mlx5_core_dev *mdev, enum mlx5e_rx_res_features features,
30		    unsigned int max_nch, u32 drop_rqn,
31		    const struct mlx5e_packet_merge_param *pkt_merge_param,
32		    unsigned int init_nch);
33void mlx5e_rx_res_destroy(struct mlx5e_rx_res *res);
34
35/* TIRN getters for flow steering */
36u32 mlx5e_rx_res_get_tirn_direct(struct mlx5e_rx_res *res, unsigned int ix);
37u32 mlx5e_rx_res_get_tirn_rss(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt);
38u32 mlx5e_rx_res_get_tirn_rss_inner(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt);
39u32 mlx5e_rx_res_get_tirn_ptp(struct mlx5e_rx_res *res);
40u32 mlx5e_rx_res_get_rqtn_direct(struct mlx5e_rx_res *res, unsigned int ix);
41unsigned int mlx5e_rx_res_get_max_nch(struct mlx5e_rx_res *res);
42bool mlx5_rx_res_rss_inner_ft_support(struct mlx5e_rx_res *res);
43
44/* Activate/deactivate API */
45void mlx5e_rx_res_channels_activate(struct mlx5e_rx_res *res, struct mlx5e_channels *chs);
46void mlx5e_rx_res_channels_deactivate(struct mlx5e_rx_res *res);
47void mlx5e_rx_res_xsk_update(struct mlx5e_rx_res *res, struct mlx5e_channels *chs,
48			     unsigned int ix, bool xsk);
49
50/* Configuration API */
51void mlx5e_rx_res_rss_set_indir_uniform(struct mlx5e_rx_res *res, unsigned int nch);
52void mlx5e_rx_res_rss_get_rxfh(struct mlx5e_rx_res *res, u32 rss_idx,
53			       u32 *indir, u8 *key, u8 *hfunc,
54			       bool *symmetric);
55int mlx5e_rx_res_rss_set_rxfh(struct mlx5e_rx_res *res, u32 rss_idx,
56			      const u32 *indir, const u8 *key, const u8 *hfunc,
57			      const bool *symmetric);
58
59int mlx5e_rx_res_rss_get_hash_fields(struct mlx5e_rx_res *res, u32 rss_idx,
60				     enum mlx5_traffic_types tt);
61int mlx5e_rx_res_rss_set_hash_fields(struct mlx5e_rx_res *res, u32 rss_idx,
62				     enum mlx5_traffic_types tt, u8 rx_hash_fields);
63int mlx5e_rx_res_packet_merge_set_param(struct mlx5e_rx_res *res,
64					struct mlx5e_packet_merge_param *pkt_merge_param);
65
66int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, u32 rss_idx, unsigned int init_nch);
67int mlx5e_rx_res_rss_destroy(struct mlx5e_rx_res *res, u32 rss_idx);
68int mlx5e_rx_res_rss_cnt(struct mlx5e_rx_res *res);
69int mlx5e_rx_res_rss_index(struct mlx5e_rx_res *res, struct mlx5e_rss *rss);
70struct mlx5e_rss *mlx5e_rx_res_rss_get(struct mlx5e_rx_res *res, u32 rss_idx);
71void mlx5e_rx_res_rss_update_num_channels(struct mlx5e_rx_res *res, u32 nch);
72
73/* Workaround for hairpin */
74struct mlx5e_rss_params_hash mlx5e_rx_res_get_current_hash(struct mlx5e_rx_res *res);
75
76/* Accel TIRs */
77int mlx5e_rx_res_tls_tir_create(struct mlx5e_rx_res *res, unsigned int rxq,
78				struct mlx5e_tir *tir);
79#endif /* __MLX5_EN_RX_RES_H__ */