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

#ifndef __MLX5_SF_DEV_H__
#define __MLX5_SF_DEV_H__

#ifdef CONFIG_MLX5_SF

#include <linux/auxiliary_bus.h>

#define MLX5_SF_DEV_ID_NAME "sf"

/* syfs is needed here to support
 * ("driver core: auxiliary bus: show auxiliary device IRQs")
 * on v5.11..v6.10 kernels
 */
struct mlx5_sf_dev {
	struct auxiliary_device adev;
#if !defined(HAVE_AUX_DEV_IRQS_SYSFS) && !defined(CONFIG_AUXILIARY_BUS)
	struct {
		struct xarray irqs;
		struct mutex lock; /* Synchronize irq sysfs creation */
		bool irq_dir_exists;
	} sysfs;
#endif
	struct mlx5_core_dev *parent_mdev;
	struct mlx5_core_dev *mdev;
	phys_addr_t bar_base_addr;
	u32 sfnum;
	u16 fn_id;

#ifdef CONFIG_MLX5_SF_CFG
	u32 cmpl_eq_depth;
	u32 async_eq_depth;
	bool disable_fc;
	bool disable_netdev;
	u16 max_cmpl_eqs;
#endif
};

#ifdef HAVE_DEVLINK_INSTANCES_RELATIONSHIPS_EXPOSURE
struct mlx5_sf_peer_devlink_event_ctx {
	u16 fn_id;
	struct devlink *devlink;
	int err;
};
#endif

void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev);
void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev);

int mlx5_sf_driver_register(void);
void mlx5_sf_driver_unregister(void);

bool mlx5_sf_dev_allocated(const struct mlx5_core_dev *dev);

#else

static inline void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev)
{
}

static inline void mlx5_sf_dev_table_destroy(struct mlx5_core_dev *dev)
{
}

static inline int mlx5_sf_driver_register(void)
{
	return 0;
}

static inline void mlx5_sf_driver_unregister(void)
{
}

static inline bool mlx5_sf_dev_allocated(const struct mlx5_core_dev *dev)
{
	return false;
}

#endif

#endif
