include/sys/dktp/cmdk.h

   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 /*
  23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_DKTP_CMDK_H
  28 #define _SYS_DKTP_CMDK_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #include <sys/cmlb.h>
  37 #include <sys/dktp/tgdk.h>
  38
  39 #define CMDK_UNITSHF    6
  40 #define CMDK_MAXPART    (1 << CMDK_UNITSHF)
  41
  42 /*
  43  * Model number is 40 ASCII characters
  44  * Serial number is 20 ASCII characters
  45  */
  46 #define CMDK_HWIDLEN    (64)
  47
  48 struct  cmdk {
  49         /* set during probe */
  50         dev_info_t      *dk_dip;
  51         dev_t           dk_dev;
  52         struct tgdk_obj *dk_tgobjp;             /* target disk object pointer */
  53
  54         /* set during attach */
  55         cmlb_handle_t   dk_cmlbhandle;
  56         ddi_devid_t     dk_devid;
  57
  58         kmutex_t        dk_mutex;               /* mutex for cmdk struct */
  59
  60         long            dk_flag;
  61         uint64_t        dk_open_reg[OTYPCNT];   /* bit per partition: 2^6 */
  62         ulong_t         dk_open_lyr[CMDK_MAXPART]; /* OTYP_LYR cnt/partition */
  63         uint64_t        dk_open_exl;            /* bit per partition: 2^6 */
  64
  65         struct bbh_obj  dk_bbh_obj;
  66
  67         /*
  68          * BBH variables
  69          * protected by dk_bbh_mutex
  70          */
  71         krwlock_t       dk_bbh_mutex;           /* bbh mutex */
  72         tgdk_iob_handle dk_alts_hdl;            /* iob for V_ALTSCTR */
  73         uint32_t        dk_altused;             /* num entries in V_ALTSCTR */
  74         uint32_t        *dk_slc_cnt;            /* entries per slice */
  75         struct alts_ent **dk_slc_ent;           /* link to remap data */
  76
  77         /*
  78          * for power management
  79          */
  80         kmutex_t        dk_pm_mutex;
  81         kcondvar_t      dk_suspend_cv;
  82         uint32_t        dk_pm_level;
  83         uint32_t        dk_pm_is_enabled;
  84 };
  85
  86 /*
  87  * Power Management definitions
  88  */
  89 #define CMDK_SPINDLE_UNINIT     ((uint_t)(-1))
  90 #define CMDK_SPINDLE_OFF        0x0
  91 #define CMDK_SPINDLE_ON         0x1
  92
  93 /*      common disk flags definitions                                   */
  94 #define CMDK_OPEN               0x1
  95 #define CMDK_SUSPEND            0x2
  96 #define CMDK_TGDK_OPEN          0x4
  97
  98 #define CMDKUNIT(dev) (getminor((dev)) >> CMDK_UNITSHF)
  99 #define CMDKPART(dev) (getminor((dev)) & (CMDK_MAXPART - 1))
 100
 101 #ifdef  __cplusplus
 102 }
 103 #endif
 104
 105 #endif  /* _SYS_DKTP_CMDK_H */