dim.h

 1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
 2/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved */
 3
 4#ifndef __MLX5_EN_DIM_H__
 5#define __MLX5_EN_DIM_H__
 6
 7#include <linux/dim.h>
 8#include <linux/types.h>
 9#include <linux/mlx5/mlx5_ifc.h>
10
11/* Forward declarations */
12struct mlx5e_rq;
13struct mlx5e_txqsq;
14struct work_struct;
15
16/* convert a boolean value for cqe mode to appropriate dim constant
17 * true  : DIM_CQ_PERIOD_MODE_START_FROM_CQE
18 * false : DIM_CQ_PERIOD_MODE_START_FROM_EQE
19 */
20static inline int mlx5e_dim_cq_period_mode(bool start_from_cqe)
21{
22	return start_from_cqe ? DIM_CQ_PERIOD_MODE_START_FROM_CQE :
23		DIM_CQ_PERIOD_MODE_START_FROM_EQE;
24}
25
26static inline enum mlx5_cq_period_mode
27mlx5e_cq_period_mode(enum dim_cq_period_mode cq_period_mode)
28{
29	switch (cq_period_mode) {
30	case DIM_CQ_PERIOD_MODE_START_FROM_EQE:
31		return MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
32	case DIM_CQ_PERIOD_MODE_START_FROM_CQE:
33		return MLX5_CQ_PERIOD_MODE_START_FROM_CQE;
34	default:
35		WARN_ON_ONCE(true);
36		return MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
37	}
38}
39
40void mlx5e_rx_dim_work(struct work_struct *work);
41void mlx5e_tx_dim_work(struct work_struct *work);
42int mlx5e_dim_rx_change(struct mlx5e_rq *rq, bool enabled);
43int mlx5e_dim_tx_change(struct mlx5e_txqsq *sq, bool enabled);
44
45#endif /* __MLX5_EN_DIM_H__ */