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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_MHD_H
#define _SYS_MHD_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Definitions for multi-host device I/O control commands
*/
#define MHIOC ('M'<<8)
#define MHIOCENFAILFAST (MHIOC|1)
#define MHIOCTKOWN (MHIOC|2)
#define MHIOCRELEASE (MHIOC|3)
#define MHIOCSTATUS (MHIOC|4)
#define MHIOCGRP_INKEYS (MHIOC|5)
#define MHIOCGRP_INRESV (MHIOC|6)
#define MHIOCGRP_REGISTER (MHIOC|7)
#define MHIOCGRP_RESERVE (MHIOC|8)
#define MHIOCGRP_PREEMPTANDABORT (MHIOC|9)
#define MHIOCGRP_PREEMPT (MHIOC|10)
#define MHIOCGRP_CLEAR (MHIOC|11)
#define MHIOCGRP_REGISTERANDIGNOREKEY (MHIOC|14)
#define MHIOCQRESERVE (MHIOC|12)
#define MHIOCREREGISTERDEVID (MHIOC|13)
/*
* Following is the structure to specify the delay parameters in
* milliseconds, via the MHIOCTKOWN ioctl.
*/
struct mhioctkown {
int reinstate_resv_delay;
int min_ownership_delay;
int max_ownership_delay;
};
#define MHIOC_RESV_KEY_SIZE 8
typedef struct mhioc_resv_key {
uchar_t key[MHIOC_RESV_KEY_SIZE];
} mhioc_resv_key_t;
typedef struct mhioc_key_list {
uint32_t listsize;
uint32_t listlen;
mhioc_resv_key_t *list;
} mhioc_key_list_t;
typedef struct mhioc_inkeys {
uint32_t generation;
mhioc_key_list_t *li;
} mhioc_inkeys_t;
#if defined(_SYSCALL32)
struct mhioc_key_list32 {
uint32_t listsize;
uint32_t listlen;
caddr32_t list;
} mhioc_key_list32_t;
struct mhioc_inkeys32 {
uint32_t generation;
caddr32_t li;
} mhioc_inkeys32_t;
#endif
typedef struct mhioc_resv_desc {
mhioc_resv_key_t key;
uint8_t type;
uint8_t scope;
uint32_t scope_specific_addr;
} mhioc_resv_desc_t;
typedef struct mhioc_resv_desc_list {
uint32_t listsize;
uint32_t listlen;
mhioc_resv_desc_t *list;
} mhioc_resv_desc_list_t;
typedef struct mhioc_inresvs {
uint32_t generation;
mhioc_resv_desc_list_t *li;
} mhioc_inresvs_t;
#if defined(_SYSCALL32)
struct mhioc_resv_desc_list32 {
uint32_t listsize;
uint32_t listlen;
caddr32_t list;
} mhioc_resv_desc_list32_t;
typedef struct mhioc_inresvs32 {
uint32_t generation;
caddr32_t li;
} mhioc_inresvs32_t;
#endif
typedef struct mhioc_register {
mhioc_resv_key_t oldkey;
mhioc_resv_key_t newkey;
boolean_t aptpl; /* True if persistent across power failures */
} mhioc_register_t;
typedef struct mhioc_preemptandabort {
mhioc_resv_desc_t resvdesc;
mhioc_resv_key_t victim_key;
} mhioc_preemptandabort_t;
typedef struct mhioc_registerandignorekey {
mhioc_resv_key_t newkey;
boolean_t aptpl; /* True if persistent across power failures */
} mhioc_registerandignorekey_t;
/*
* SCSI-3 PGR Reservation Type Codes. Codes with the _OBSOLETE suffix
* have been removed from the SCSI3 PGR standard.
*/
#define SCSI3_RESV_READSHARED_OBSOLETE 0
#define SCSI3_RESV_WRITEEXCLUSIVE 1
#define SCSI3_RESV_READEXCLUSIVE_OBSOLETE 2
#define SCSI3_RESV_EXCLUSIVEACCESS 3
#define SCSI3_RESV_SHAREDACCESS_OBSOLETE 4
#define SCSI3_RESV_WRITEEXCLUSIVEREGISTRANTSONLY 5
#define SCSI3_RESV_EXCLUSIVEACCESSREGISTRANTSONLY 6
#define SCSI3_SCOPE_LOGICALUNIT 0
#define SCSI3_SCOPE_EXTENT_OBSOLETE 1
#define SCSI3_SCOPE_ELEMENT 2
#ifdef __cplusplus
}
#endif
#endif /* _SYS_MHD_H */
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