linux/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h

/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2020 Mellanox Technologies. */

#ifndef __MLX5_EN_PTP_H__
#define __MLX5_EN_PTP_H__

#include "en.h"
#include "en_stats.h"
#include "en/txrx.h"
#include <linux/ktime.h>
#include <linux/ptp_classify.h>
#include <linux/time64.h>
#include <linux/workqueue.h>

#define MLX5E_PTP_CHANNEL_IX …
#define MLX5E_PTP_MAX_LOG_SQ_SIZE …
#define MLX5E_PTP_TS_CQE_UNDELIVERED_TIMEOUT …

struct mlx5e_ptp_metadata_fifo { … };

struct mlx5e_ptp_metadata_map { … };

struct mlx5e_ptpsq { … };

enum { … };

struct mlx5e_ptp { … };

static inline bool mlx5e_use_ptpsq(struct sk_buff *skb)
{ … }

static inline void mlx5e_ptp_metadata_fifo_push(struct mlx5e_ptp_metadata_fifo *fifo, u8 metadata)
{ … }

static inline u8
mlx5e_ptp_metadata_fifo_peek(struct mlx5e_ptp_metadata_fifo *fifo)
{ … }

static inline void
mlx5e_ptp_metadata_fifo_pop(struct mlx5e_ptp_metadata_fifo *fifo)
{ … }

static inline void
mlx5e_ptp_metadata_map_put(struct mlx5e_ptp_metadata_map *map,
			   struct sk_buff *skb, u8 metadata)
{ … }

static inline bool mlx5e_ptpsq_metadata_freelist_empty(struct mlx5e_ptpsq *ptpsq)
{ … }

int mlx5e_ptp_open(struct mlx5e_priv *priv, struct mlx5e_params *params,
		   u8 lag_port, struct mlx5e_ptp **cp);
void mlx5e_ptp_close(struct mlx5e_ptp *c);
void mlx5e_ptp_activate_channel(struct mlx5e_ptp *c);
void mlx5e_ptp_deactivate_channel(struct mlx5e_ptp *c);
int mlx5e_ptp_get_rqn(struct mlx5e_ptp *c, u32 *rqn);
int mlx5e_ptp_alloc_rx_fs(struct mlx5e_flow_steering *fs,
			  const struct mlx5e_profile *profile);
void mlx5e_ptp_free_rx_fs(struct mlx5e_flow_steering *fs,
			  const struct mlx5e_profile *profile);
int mlx5e_ptp_rx_manage_fs(struct mlx5e_priv *priv, bool set);

void mlx5e_ptpsq_track_metadata(struct mlx5e_ptpsq *ptpsq, u8 metadata);

enum { … };

void mlx5e_skb_cb_hwtstamp_handler(struct sk_buff *skb, int hwtstamp_type,
				   ktime_t hwtstamp,
				   struct mlx5e_ptp_cq_stats *cq_stats);

void mlx5e_skb_cb_hwtstamp_init(struct sk_buff *skb);
#endif /* __MLX5_EN_PTP_H__ */