1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_MHD_H 28 #define _SYS_MHD_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Definitions for multi-host device I/O control commands 38 */ 39 #define MHIOC ('M'<<8) 40 #define MHIOCENFAILFAST (MHIOC|1) 41 #define MHIOCTKOWN (MHIOC|2) 42 #define MHIOCRELEASE (MHIOC|3) 43 #define MHIOCSTATUS (MHIOC|4) 44 #define MHIOCGRP_INKEYS (MHIOC|5) 45 #define MHIOCGRP_INRESV (MHIOC|6) 46 #define MHIOCGRP_REGISTER (MHIOC|7) 47 #define MHIOCGRP_RESERVE (MHIOC|8) 48 #define MHIOCGRP_PREEMPTANDABORT (MHIOC|9) 49 #define MHIOCGRP_PREEMPT (MHIOC|10) 50 #define MHIOCGRP_CLEAR (MHIOC|11) 51 #define MHIOCGRP_REGISTERANDIGNOREKEY (MHIOC|14) 52 #define MHIOCQRESERVE (MHIOC|12) 53 #define MHIOCREREGISTERDEVID (MHIOC|13) 54 55 /* 56 * Following is the structure to specify the delay parameters in 57 * milliseconds, via the MHIOCTKOWN ioctl. 58 */ 59 struct mhioctkown { 60 int reinstate_resv_delay; 61 int min_ownership_delay; 62 int max_ownership_delay; 63 }; 64 65 #define MHIOC_RESV_KEY_SIZE 8 66 typedef struct mhioc_resv_key { 67 uchar_t key[MHIOC_RESV_KEY_SIZE]; 68 } mhioc_resv_key_t; 69 70 typedef struct mhioc_key_list { 71 uint32_t listsize; 72 uint32_t listlen; 73 mhioc_resv_key_t *list; 74 } mhioc_key_list_t; 75 76 typedef struct mhioc_inkeys { 77 uint32_t generation; 78 mhioc_key_list_t *li; 79 } mhioc_inkeys_t; 80 81 #if defined(_SYSCALL32) 82 struct mhioc_key_list32 { 83 uint32_t listsize; 84 uint32_t listlen; 85 caddr32_t list; 86 } mhioc_key_list32_t; 87 88 struct mhioc_inkeys32 { 89 uint32_t generation; 90 caddr32_t li; 91 } mhioc_inkeys32_t; 92 #endif 93 94 typedef struct mhioc_resv_desc { 95 mhioc_resv_key_t key; 96 uint8_t type; 97 uint8_t scope; 98 uint32_t scope_specific_addr; 99 } mhioc_resv_desc_t; 100 101 typedef struct mhioc_resv_desc_list { 102 uint32_t listsize; 103 uint32_t listlen; 104 mhioc_resv_desc_t *list; 105 } mhioc_resv_desc_list_t; 106 107 typedef struct mhioc_inresvs { 108 uint32_t generation; 109 mhioc_resv_desc_list_t *li; 110 } mhioc_inresvs_t; 111 112 #if defined(_SYSCALL32) 113 struct mhioc_resv_desc_list32 { 114 uint32_t listsize; 115 uint32_t listlen; 116 caddr32_t list; 117 } mhioc_resv_desc_list32_t; 118 119 typedef struct mhioc_inresvs32 { 120 uint32_t generation; 121 caddr32_t li; 122 } mhioc_inresvs32_t; 123 #endif 124 125 typedef struct mhioc_register { 126 mhioc_resv_key_t oldkey; 127 mhioc_resv_key_t newkey; 128 boolean_t aptpl; /* True if persistent across power failures */ 129 } mhioc_register_t; 130 131 typedef struct mhioc_preemptandabort { 132 mhioc_resv_desc_t resvdesc; 133 mhioc_resv_key_t victim_key; 134 } mhioc_preemptandabort_t; 135 136 typedef struct mhioc_registerandignorekey { 137 mhioc_resv_key_t newkey; 138 boolean_t aptpl; /* True if persistent across power failures */ 139 } mhioc_registerandignorekey_t; 140 141 /* 142 * SCSI-3 PGR Reservation Type Codes. Codes with the _OBSOLETE suffix 143 * have been removed from the SCSI3 PGR standard. 144 */ 145 #define SCSI3_RESV_READSHARED_OBSOLETE 0 146 #define SCSI3_RESV_WRITEEXCLUSIVE 1 147 #define SCSI3_RESV_READEXCLUSIVE_OBSOLETE 2 148 #define SCSI3_RESV_EXCLUSIVEACCESS 3 149 #define SCSI3_RESV_SHAREDACCESS_OBSOLETE 4 150 #define SCSI3_RESV_WRITEEXCLUSIVEREGISTRANTSONLY 5 151 #define SCSI3_RESV_EXCLUSIVEACCESSREGISTRANTSONLY 6 152 153 #define SCSI3_SCOPE_LOGICALUNIT 0 154 #define SCSI3_SCOPE_EXTENT_OBSOLETE 1 155 #define SCSI3_SCOPE_ELEMENT 2 156 157 #ifdef __cplusplus 158 } 159 #endif 160 161 #endif /* _SYS_MHD_H */ 162