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/*
* 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__MD_STRIPE_H
#define _SYS__MD_STRIPE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/lvm/mdvar.h>
#include <sys/lvm/md_mirror_shared.h>
#include <sys/lvm/md_rename.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* ms_comp32_od is for old 32 bit format only
*/
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack(4)
#endif
typedef struct ms_comp32_od {
mdkey_t un_key;
dev32_t un_dev;
daddr32_t un_start_block; /* comp start blkno */
md_m_shared32_od_t un_mirror;
} ms_comp32_od_t;
typedef struct ms_comp { /* components */
mdkey_t un_key; /* namespace key */
md_dev64_t un_dev; /* device number, 64 bit */
diskaddr_t un_start_block; /* comp start blkno */
md_m_shared_t un_mirror; /* mirror shared data */
} ms_comp_t;
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack()
#endif
/*
* ms_unit32_od is for old 32 bit format only
*/
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack(4)
#endif
typedef struct ms_unit32_od {
mdc_unit32_od_t c;
int un_hsp_id; /* hot spare pool db record id */
uint_t un_nrows; /* number of rows */
uint_t un_ocomp; /* offset of ms_comp array */
struct ms_row32_od {
int un_icomp; /* ms_comp array index of first comp */
uint_t un_ncomp; /* # comps in this row */
int un_blocks; /* total blocks in this row */
int un_cum_blocks; /* cum. blks in this and prev. rows */
int un_interlace; /* # blks from each disk in a stripe */
}un_row[1];
} ms_unit32_od_t;
typedef struct ms_unit {
mdc_unit_t c;
int un_hsp_id; /* hot spare pool db record id */
uint_t un_nrows; /* number of rows */
uint_t un_ocomp; /* offset of ms_comp array */
struct ms_row {
int un_icomp; /* ms_comp array index of first comp */
uint_t un_ncomp; /* # comps in this row */
diskaddr_t un_blocks; /* total blocks in this row */
diskaddr_t un_cum_blocks; /* cum. blks in rows */
diskaddr_t un_interlace; /* # blks from each disk */
}un_row[1];
} ms_unit_t;
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack()
#endif
#ifdef _KERNEL
typedef struct md_sps { /* stripe parent save */
DAEMON_QUEUE
ms_unit_t *ps_un;
mdi_unit_t *ps_ui;
buf_t *ps_bp;
caddr_t ps_addr;
int ps_frags;
int ps_flags;
ms_comp_t *ps_errcomp;
/*
* New structure members should be added here; fields added
* after ps_mx will not be zeroed during initialization.
*/
kmutex_t ps_mx;
} md_sps_t;
#define MD_SPS_ERROR 0x0001
#define MD_SPS_DONTFREE 0x0002
#define MD_SPS_DONE 0x0004
#define SPS_FREE(kc, ps) \
{ \
if ((ps)->ps_flags & MD_SPS_DONTFREE) \
(ps)->ps_flags |= MD_SPS_DONE; \
else \
kmem_cache_free((kc), (ps)); \
}
typedef struct md_scs {
DAEMON_QUEUE
minor_t cs_mdunit;
md_sps_t *cs_ps;
ms_comp_t *cs_comp;
/* Add new structure members HERE!! */
buf_t cs_buf;
/* DO NOT add struture members here; cs_buf is dynamically sized */
} md_scs_t;
/* Externals from stripe.c */
extern int stripe_build_incore(void *, int);
extern void reset_stripe(ms_unit_t *, minor_t, int);
extern intptr_t stripe_component_count(md_dev64_t, void *);
extern intptr_t stripe_get_dev(md_dev64_t, void *, int, ms_cd_info_t *);
extern intptr_t stripe_replace_dev(md_dev64_t, void *, int, ms_new_dev_t *,
mddb_recid_t *, int, void (**)(), void **);
extern void stripe_replace_done(md_dev64_t, sv_dev_t *);
/* Externals from stripe_ioctl.c */
extern int md_stripe_ioctl(dev_t dev, int cmd, void *data,
int mode, IOLOCK *lockp);
/* rename named service functions (stripe_ioctl.c) */
md_ren_svc_t stripe_rename_check;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS__MD_STRIPE_H */
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