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     ˆÂÄƒaoÃÆÇ ë    /* SPDX-License-Identifier: GPL-2.0 */
/* net/atm/atmarp.h - RFC1577 ATM ARP */
 
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
 
 
#ifndef _ATMCLIP_H
#define _ATMCLIP_H

#include <linux/netdevice.h>
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/atmarp.h>
#include <linux/spinlock.h>
#include <net/neighbour.h>


#define CLIP_VCC(vcc) ((struct clip_vcc *) ((vcc)->user_back))

struct sk_buff;

struct clip_vcc {
	struct atm_vcc	*vcc;		/* VCC descriptor */
	struct atmarp_entry *entry;	/* ATMARP table entry, NULL if IP addr.
					   isn't known yet */
	int		xoff;		/* 1 if send buffer is full */
	unsigned char	encap;		/* 0: NULL, 1: LLC/SNAP */
	unsigned long	last_use;	/* last send or receive operation */
	unsigned long	idle_timeout;	/* keep open idle for so many jiffies*/
	void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
					/* keep old push fn for chaining */
	void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb);
					/* keep old pop fn for chaining */
	struct clip_vcc	*next;		/* next VCC */
};


struct atmarp_entry {
	struct clip_vcc	*vccs;		/* active VCCs; NULL if resolution is
					   pending */
	unsigned long	expires;	/* entry expiration time */
	struct neighbour *neigh;	/* neighbour back-pointer */
};

#define PRIV(dev) ((struct clip_priv *) netdev_priv(dev))

struct clip_priv {
	int number;			/* for convenience ... */
	spinlock_t xoff_lock;		/* ensures that pop is atomic (SMP) */
	struct net_device *next;	/* next CLIP interface */
};

#endif
     ˆÂÄ„p|_ÃÆÇ ?÷     /* SPDX-License-Identifier: GPL-2.0-or-later
 *
 * Copyright (C) 2005 David Brownell
 */

#ifndef __LINUX_SPI_H
#define __LINUX_SPI_H

#include <linux/bits.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/completion.h>
#include <linux/scatterlist.h>
#include <linux/gpio/consumer.h>

#include <uapi/linux/spi/spi.h>
#include <linux/acpi.h>
#include <linux/u64_stats_sync.h>

struct dma_chan;
struct software_node;
struct ptp_system_timestamp;
struct spi_controller;
struct spi_transfer;
struct spi_controller_mem_ops;
struct spi_controller_mem_caps;

/*
 * INTERFACES between SPI master-side drivers and SPI slave protocol handlers,
 * and SPI infrastructure.
 */
extern struct bus_type spi_bus_type;

/**
 * struct spi_statistics - statistics for spi transfers
 * @syncp:         seqcount to protect members in this struct for per-cpu udate
 *                 on 32-bit systems
 *
 * @messages:      number of spi-messages handled
 * @transfers:     number of spi_transfers handled
 * @errors:        number of errors during spi_transfer
 * @timedout:      number of timeouts during spi_transfer
 *
 * @spi_sync:      number of times spi_sync is used
 * @spi_sync_immediate:
 *                 number of times spi_sync is executed immediately
 *                 in calling context without queuing and scheduling
 * @spi_async:     number of times spi_async is used
 *
 * @bytes:         number of bytes transferred to/from device
 * @bytes_tx:      number of bytes sent to device
 * @bytes_rx:      number of bytes received from device
 *
 * @transfer_bytes_histo:
 *                 transfer bytes histogramm
 *
 * @transfers_split_maxsize:
 *                 number of transfers that have been split because of
 *                 maxsize limit
 */
struct spi_statistics {
	struct u64_stats_sync	syncp;

	u64_stats_t		messages;
	u64_stats_t		transfers;
	u64_stats_t		errors;
	u64_stats_t		timedout;

	u64_stats_t		spi_sync;
	u64_stats_t		spi_sync_immediate;
	u64_stats_t		spi_async;

	u64_stats_t		bytes;
	u64_stats_t		bytes_rx;
	u64_stats_t		bytes_tx;

#define SPI_STATISTICS_HISTO_SIZE 17
	u64_stats_t	transfer_bytes_histo[SPI_STATISTICS_HISTO_SIZE];

	u64_stats_t	transfers_split_maxsize;
};

#define SPI_STATISTICS_ADD_TO_FIELD(pcpu_stats, field, count)		\
	do {								\
		struct spi_statistics *__lstats;			\
		get_cpu();						\
		__lstats = this_cpu_ptr(pcpu_stats);			\
		u64_stats_update_begin(&__lstats->syncp);		\
		u64_sta