/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 * Copyright 2016 Nexenta Systems, Inc.  All rights reserved.
 */

#ifndef _DS_IMPL_H
#define _DS_IMPL_H

#include <dlfcn.h>
#include <libnvpair.h>
#include <sys/types.h>

#ifdef  __cplusplus
extern "C" {
#endif

struct disk_status;

typedef struct ds_transport {
        void            *(*dt_open)(struct disk_status *);
        void            (*dt_close)(void *);
        int             (*dt_scan)(void *);
} ds_transport_t;

struct disk_status {
        char                    *ds_path;       /* path to device */
        int                     ds_fd;          /* device file descriptor */
        ds_transport_t          *ds_transport;  /* associated transport */
        void                    *ds_data;       /* transport-specific data */
        int                     ds_faults;      /* mask of current faults */
        nvlist_t                *ds_overtemp;   /* overtemp */
        nvlist_t                *ds_predfail;   /* predict fail */
        nvlist_t                *ds_testfail;   /* self test fail */
        nvlist_t                *ds_ssmwearout; /* SSM wearout fail */
        int                     ds_error;       /* last error */
        nvlist_t                *ds_state;      /* protocol state */
};

#define DS_FAULT_OVERTEMP       0x1
#define DS_FAULT_PREDFAIL       0x2
#define DS_FAULT_TESTFAIL       0x4
#define DS_FAULT_SSMWEAROUT     0x8

extern void ds_dprintf(const char *, ...);
extern void ddump(const char *, const void *, size_t);
extern boolean_t ds_debug;

extern int ds_set_errno(struct disk_status *, int);

#ifdef  __cplusplus
}
#endif

#endif  /* _DS_IMPL_H */