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Diffstat (limited to 'lib/libspl/include/sys/mhd.h')
| -rw-r--r-- | lib/libspl/include/sys/mhd.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/lib/libspl/include/sys/mhd.h b/lib/libspl/include/sys/mhd.h new file mode 100644 index 000000000..fcc062d51 --- /dev/null +++ b/lib/libspl/include/sys/mhd.h @@ -0,0 +1,159 @@ +/* + * 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 */ |