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_DKTP_BBH_H 28 #define _SYS_DKTP_BBH_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 struct bbh_cookie { 37 lldaddr_t _ck_sector; /* sector # on device (union) */ 38 long ck_seclen; /* number of contiguous sec */ 39 }; 40 #define ck_lsector _ck_sector._f 41 #define ck_sector _ck_sector._p._l 42 typedef struct bbh_cookie *bbh_cookie_t; 43 44 struct bbh_handle { 45 int h_totck; 46 int h_idx; 47 struct bbh_cookie *h_cktab; 48 }; 49 50 struct bbh_obj { 51 opaque_t bbh_data; 52 struct bbh_objops *bbh_ops; 53 }; 54 55 struct bbh_objops { 56 int (*bbh_init)(opaque_t); 57 int (*bbh_free)(struct bbh_obj *); 58 opaque_t (*bbh_gethandle)(opaque_t, struct buf *); 59 bbh_cookie_t (*bbh_htoc)(opaque_t, opaque_t); 60 void (*bbh_freehandle)(opaque_t, opaque_t); 61 void *bbh_resv[2]; 62 }; 63 64 #define BBH_GETCK_SECTOR(X, ckp) ((ckp)->ck_sector) 65 #define BBH_GETCK_SECLEN(X, ckp) ((ckp)->ck_seclen) 66 67 #define BBH_INIT(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_init)\ 68 (((struct bbh_obj *)(X))->bbh_data) 69 #define BBH_FREE(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_free) ((X)) 70 #define BBH_GETHANDLE(X, bp) (*((struct bbh_obj *)(X))->bbh_ops->bbh_gethandle)\ 71 (((struct bbh_obj *)(X))->bbh_data, (bp)) 72 #define BBH_HTOC(X, handle) (*((struct bbh_obj *)(X))->bbh_ops->bbh_htoc) \ 73 (((struct bbh_obj *)(X))->bbh_data, (handle)) 74 #define BBH_FREEHANDLE(X, handle) \ 75 (*((struct bbh_obj *)(X))->bbh_ops->bbh_freehandle) \ 76 (((struct bbh_obj *)(X))->bbh_data, (handle)) 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* _SYS_DKTP_BBH_H */ 83