linux/drivers/net/ethernet/mellanox/mlx5/core/en/tc/meter.c

// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.

#include <linux/math64.h>
#include "lib/aso.h"
#include "en/tc/post_act.h"
#include "meter.h"
#include "en/tc_priv.h"

#define MLX5_START_COLOR_SHIFT …
#define MLX5_METER_MODE_SHIFT …
#define MLX5_CBS_EXP_SHIFT …
#define MLX5_CBS_MAN_SHIFT …
#define MLX5_CIR_EXP_SHIFT …

/* cir = 8*(10^9)*cir_mantissa/(2^cir_exponent)) bits/s */
#define MLX5_CONST_CIR …
#define MLX5_CALC_CIR(m, e) …
#define MLX5_MAX_CIR …

/* cbs = cbs_mantissa*2^cbs_exponent */
#define MLX5_CALC_CBS(m, e) …
#define MLX5_MAX_CBS …
#define MLX5_MAX_HW_CBS …

struct mlx5e_flow_meter_aso_obj { … };

struct mlx5e_flow_meters { … };

static void
mlx5e_flow_meter_cir_calc(u64 cir, u8 *man, u8 *exp)
{ … }

static void
mlx5e_flow_meter_cbs_calc(u64 cbs, u8 *man, u8 *exp)
{ … }

int
mlx5e_tc_meter_modify(struct mlx5_core_dev *mdev,
		      struct mlx5e_flow_meter_handle *meter,
		      struct mlx5e_flow_meter_params *meter_params)
{ … }

static int
mlx5e_flow_meter_create_aso_obj(struct mlx5e_flow_meters *flow_meters, int *obj_id)
{ … }

static void
mlx5e_flow_meter_destroy_aso_obj(struct mlx5_core_dev *mdev, u32 obj_id)
{ … }

static struct mlx5e_flow_meter_handle *
__mlx5e_flow_meter_alloc(struct mlx5e_flow_meters *flow_meters, bool alloc_aso)
{ … }

static void
__mlx5e_flow_meter_free(struct mlx5e_flow_meter_handle *meter)
{ … }

static struct mlx5e_flow_meter_handle *
__mlx5e_tc_meter_get(struct mlx5e_flow_meters *flow_meters, u32 index)
{ … }

struct mlx5e_flow_meter_handle *
mlx5e_tc_meter_get(struct mlx5_core_dev *mdev, struct mlx5e_flow_meter_params *params)
{ … }

static void
__mlx5e_tc_meter_put(struct mlx5e_flow_meter_handle *meter)
{ … }

void
mlx5e_tc_meter_put(struct mlx5e_flow_meter_handle *meter)
{ … }

static struct mlx5e_flow_meter_handle *
mlx5e_tc_meter_alloc(struct mlx5e_flow_meters *flow_meters,
		     struct mlx5e_flow_meter_params *params)
{ … }

static int
__mlx5e_tc_meter_update(struct mlx5e_flow_meter_handle *meter,
			struct mlx5e_flow_meter_params *params)
{ … }

int
mlx5e_tc_meter_update(struct mlx5e_flow_meter_handle *meter,
		      struct mlx5e_flow_meter_params *params)
{ … }

struct mlx5e_flow_meter_handle *
mlx5e_tc_meter_replace(struct mlx5_core_dev *mdev, struct mlx5e_flow_meter_params *params)
{ … }

enum mlx5_flow_namespace_type
mlx5e_tc_meter_get_namespace(struct mlx5e_flow_meters *flow_meters)
{ … }

struct mlx5e_flow_meters *
mlx5e_flow_meters_init(struct mlx5e_priv *priv,
		       enum mlx5_flow_namespace_type ns_type,
		       struct mlx5e_post_act *post_act)
{ … }

void
mlx5e_flow_meters_cleanup(struct mlx5e_flow_meters *flow_meters)
{ … }

void
mlx5e_tc_meter_get_stats(struct mlx5e_flow_meter_handle *meter,
			 u64 *bytes, u64 *packets, u64 *drops, u64 *lastuse)
{ … }