bbh.h revision 8863:94039d51dda4
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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26#ifndef _SYS_DKTP_BBH_H 27#define _SYS_DKTP_BBH_H 28 29#include <sys/scsi/scsi_types.h> 30 31#ifdef __cplusplus 32extern "C" { 33#endif 34 35struct bbh_cookie { 36 lldaddr_t _ck_sector; /* sector # on device (union) */ 37 long ck_seclen; /* number of contiguous sec */ 38}; 39#define ck_lsector _ck_sector._f 40#define ck_sector _ck_sector._p._l 41typedef struct bbh_cookie *bbh_cookie_t; 42 43struct bbh_handle { 44 int h_totck; 45 int h_idx; 46 struct bbh_cookie *h_cktab; 47}; 48 49struct bbh_obj { 50 opaque_t bbh_data; 51 struct bbh_objops *bbh_ops; 52}; 53 54struct bbh_objops { 55 int (*bbh_init)(opaque_t); 56 int (*bbh_free)(struct bbh_obj *); 57 opaque_t (*bbh_gethandle)(opaque_t, struct buf *); 58 bbh_cookie_t (*bbh_htoc)(opaque_t, opaque_t); 59 void (*bbh_freehandle)(opaque_t, opaque_t); 60 void *bbh_resv[2]; 61}; 62 63#define BBH_GETCK_SECTOR(X, ckp) ((ckp)->ck_sector) 64#define BBH_GETCK_SECLEN(X, ckp) ((ckp)->ck_seclen) 65 66#define BBH_INIT(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_init)\ 67 (((struct bbh_obj *)(X))->bbh_data) 68#define BBH_FREE(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_free) ((X)) 69#define BBH_GETHANDLE(X, bp) (*((struct bbh_obj *)(X))->bbh_ops->bbh_gethandle)\ 70 (((struct bbh_obj *)(X))->bbh_data, (bp)) 71#define BBH_HTOC(X, handle) (*((struct bbh_obj *)(X))->bbh_ops->bbh_htoc) \ 72 (((struct bbh_obj *)(X))->bbh_data, (handle)) 73#define BBH_FREEHANDLE(X, handle) \ 74 (*((struct bbh_obj *)(X))->bbh_ops->bbh_freehandle) \ 75 (((struct bbh_obj *)(X))->bbh_data, (handle)) 76 77#ifdef __cplusplus 78} 79#endif 80 81#endif /* _SYS_DKTP_BBH_H */ 82