params.h

  1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2/* Copyright (c) 2019 Mellanox Technologies. */
  3
  4#ifndef __MLX5_EN_PARAMS_H__
  5#define __MLX5_EN_PARAMS_H__
  6
  7#include "en.h"
  8
  9struct mlx5e_xsk_param {
 10	u16 headroom;
 11	u16 chunk_size;
 12	bool unaligned;
 13};
 14
 15struct mlx5e_cq_param {
 16	u32                        cqc[MLX5_ST_SZ_DW(cqc)];
 17	struct mlx5_wq_param       wq;
 18	u16                        eq_ix;
 19	u8                         cq_period_mode;
 20};
 21
 22struct mlx5e_rq_param {
 23	struct mlx5e_cq_param      cqp;
 24	u32                        rqc[MLX5_ST_SZ_DW(rqc)];
 25	struct mlx5_wq_param       wq;
 26	struct mlx5e_rq_frags_info frags_info;
 27	u32                        xdp_frag_size;
 28};
 29
 30struct mlx5e_sq_param {
 31	struct mlx5e_cq_param      cqp;
 32	u32                        sqc[MLX5_ST_SZ_DW(sqc)];
 33	struct mlx5_wq_param       wq;
 34	bool                       is_mpw;
 35	bool                       is_tls;
 36	u16                        stop_room;
 37};
 38
 39struct mlx5e_channel_param {
 40	struct mlx5e_rq_param      rq;
 41	struct mlx5e_sq_param      txq_sq;
 42	struct mlx5e_sq_param      xdp_sq;
 43	struct mlx5e_sq_param      icosq;
 44	struct mlx5e_sq_param      async_icosq;
 45};
 46
 47struct mlx5e_create_sq_param {
 48	struct mlx5_wq_ctrl        *wq_ctrl;
 49	u32                         cqn;
 50	u32                         ts_cqe_to_dest_cqn;
 51	u32                         tisn;
 52	u8                          tis_lst_sz;
 53	u8                          min_inline_mode;
 54	u32                         uar_page;
 55};
 56
 57/* Striding RQ dynamic parameters */
 58
 59u8 mlx5e_mpwrq_page_shift(struct mlx5_core_dev *mdev, struct mlx5e_xsk_param *xsk);
 60enum mlx5e_mpwrq_umr_mode
 61mlx5e_mpwrq_umr_mode(struct mlx5_core_dev *mdev, struct mlx5e_xsk_param *xsk);
 62u8 mlx5e_mpwrq_umr_entry_size(enum mlx5e_mpwrq_umr_mode mode);
 63u8 mlx5e_mpwrq_log_wqe_sz(struct mlx5_core_dev *mdev, u8 page_shift,
 64			  enum mlx5e_mpwrq_umr_mode umr_mode);
 65u8 mlx5e_mpwrq_pages_per_wqe(struct mlx5_core_dev *mdev, u8 page_shift,
 66			     enum mlx5e_mpwrq_umr_mode umr_mode);
 67u16 mlx5e_mpwrq_umr_wqe_sz(struct mlx5_core_dev *mdev, u8 page_shift,
 68			   enum mlx5e_mpwrq_umr_mode umr_mode);
 69u8 mlx5e_mpwrq_umr_wqebbs(struct mlx5_core_dev *mdev, u8 page_shift,
 70			  enum mlx5e_mpwrq_umr_mode umr_mode);
 71u8 mlx5e_mpwrq_mtts_per_wqe(struct mlx5_core_dev *mdev, u8 page_shift,
 72			    enum mlx5e_mpwrq_umr_mode umr_mode);
 73u32 mlx5e_mpwrq_max_num_entries(struct mlx5_core_dev *mdev,
 74				enum mlx5e_mpwrq_umr_mode umr_mode);
 75u8 mlx5e_mpwrq_max_log_rq_pkts(struct mlx5_core_dev *mdev, u8 page_shift,
 76			       enum mlx5e_mpwrq_umr_mode umr_mode);
 77
 78/* Parameter calculations */
 79
 80bool slow_pci_heuristic(struct mlx5_core_dev *mdev);
 81int mlx5e_mpwrq_validate_regular(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
 82int mlx5e_mpwrq_validate_xsk(struct mlx5_core_dev *mdev, struct mlx5e_params *params,
 83			     struct mlx5e_xsk_param *xsk);
 84void mlx5e_build_rq_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
 85void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
 86void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
 87
 88u16 mlx5e_get_linear_rq_headroom(struct mlx5e_params *params,
 89				 struct mlx5e_xsk_param *xsk);
 90bool mlx5e_rx_is_linear_skb(struct mlx5_core_dev *mdev,
 91			    struct mlx5e_params *params,
 92			    struct mlx5e_xsk_param *xsk);
 93bool mlx5e_rx_mpwqe_is_linear_skb(struct mlx5_core_dev *mdev,
 94				  struct mlx5e_params *params,
 95				  struct mlx5e_xsk_param *xsk);
 96u8 mlx5e_mpwqe_get_log_rq_size(struct mlx5_core_dev *mdev,
 97			       struct mlx5e_params *params,
 98			       struct mlx5e_xsk_param *xsk);
 99u32 mlx5e_shampo_hd_per_wqe(struct mlx5_core_dev *mdev,
100			    struct mlx5e_params *params,
101			    struct mlx5e_rq_param *rq_param);
102u32 mlx5e_shampo_hd_per_wq(struct mlx5_core_dev *mdev,
103			   struct mlx5e_params *params,
104			   struct mlx5e_rq_param *rq_param);
105u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout);
106u8 mlx5e_mpwqe_get_log_stride_size(struct mlx5_core_dev *mdev,
107				   struct mlx5e_params *params,
108				   struct mlx5e_xsk_param *xsk);
109u8 mlx5e_mpwqe_get_log_num_strides(struct mlx5_core_dev *mdev,
110				   struct mlx5e_params *params,
111				   struct mlx5e_xsk_param *xsk);
112u8 mlx5e_mpwqe_get_min_wqe_bulk(unsigned int wq_sz);
113u16 mlx5e_get_rq_headroom(struct mlx5_core_dev *mdev,
114			  struct mlx5e_params *params,
115			  struct mlx5e_xsk_param *xsk);
116
117/* Build queue parameters */
118
119void mlx5e_build_create_cq_param(struct mlx5e_create_cq_param *ccp, struct mlx5e_channel *c);
120int mlx5e_build_rq_param(struct mlx5_core_dev *mdev,
121			 struct mlx5e_params *params,
122			 struct mlx5e_xsk_param *xsk,
123			 struct mlx5e_rq_param *param);
124void mlx5e_build_drop_rq_param(struct mlx5_core_dev *mdev,
125			       struct mlx5e_rq_param *param);
126void mlx5e_build_sq_param_common(struct mlx5_core_dev *mdev,
127				 struct mlx5e_sq_param *param);
128void mlx5e_build_sq_param(struct mlx5_core_dev *mdev,
129			  struct mlx5e_params *params,
130			  struct mlx5e_sq_param *param);
131void mlx5e_build_tx_cq_param(struct mlx5_core_dev *mdev,
132			     struct mlx5e_params *params,
133			     struct mlx5e_cq_param *param);
134void mlx5e_build_xdpsq_param(struct mlx5_core_dev *mdev,
135			     struct mlx5e_params *params,
136			     struct mlx5e_sq_param *param);
137int mlx5e_build_channel_param(struct mlx5_core_dev *mdev,
138			      struct mlx5e_params *params,
139			      struct mlx5e_channel_param *cparam);
140
141u16 mlx5e_calc_sq_stop_room(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
142int mlx5e_validate_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
143bool mlx5e_verify_params_rx_mpwqe_strides(struct mlx5_core_dev *mdev,
144					  struct mlx5e_params *params,
145					  struct mlx5e_xsk_param *xsk);
146
147static inline void mlx5e_params_print_info(struct mlx5_core_dev *mdev,
148					   struct mlx5e_params *params)
149{
150	mlx5_core_info(mdev, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d %s)\n",
151		       params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
152		       params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
153		       BIT(mlx5e_mpwqe_get_log_rq_size(mdev, params, NULL)) :
154		       BIT(params->log_rq_mtu_frames),
155		       BIT(mlx5e_mpwqe_get_log_stride_size(mdev, params, NULL)),
156		       MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS),
157		       MLX5_CAP_GEN(mdev, enhanced_cqe_compression) ?
158				       "enhanced" : "basic");
159};
160
161#endif /* __MLX5_EN_PARAMS_H__ */