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-rw-r--r--uts/common/fs/zfs/sys/vdev.h161
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diff --git a/uts/common/fs/zfs/sys/vdev.h b/uts/common/fs/zfs/sys/vdev.h
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _SYS_VDEV_H
+#define _SYS_VDEV_H
+
+#include <sys/spa.h>
+#include <sys/zio.h>
+#include <sys/dmu.h>
+#include <sys/space_map.h>
+#include <sys/fs/zfs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum vdev_dtl_type {
+ DTL_MISSING, /* 0% replication: no copies of the data */
+ DTL_PARTIAL, /* less than 100% replication: some copies missing */
+ DTL_SCRUB, /* unable to fully repair during scrub/resilver */
+ DTL_OUTAGE, /* temporarily missing (used to attempt detach) */
+ DTL_TYPES
+} vdev_dtl_type_t;
+
+extern boolean_t zfs_nocacheflush;
+
+extern int vdev_open(vdev_t *);
+extern void vdev_open_children(vdev_t *);
+extern boolean_t vdev_uses_zvols(vdev_t *);
+extern int vdev_validate(vdev_t *);
+extern void vdev_close(vdev_t *);
+extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace);
+extern void vdev_reopen(vdev_t *);
+extern int vdev_validate_aux(vdev_t *vd);
+extern zio_t *vdev_probe(vdev_t *vd, zio_t *pio);
+
+extern boolean_t vdev_is_bootable(vdev_t *vd);
+extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
+extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
+extern void vdev_dtl_dirty(vdev_t *vd, vdev_dtl_type_t d,
+ uint64_t txg, uint64_t size);
+extern boolean_t vdev_dtl_contains(vdev_t *vd, vdev_dtl_type_t d,
+ uint64_t txg, uint64_t size);
+extern boolean_t vdev_dtl_empty(vdev_t *vd, vdev_dtl_type_t d);
+extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
+ int scrub_done);
+extern boolean_t vdev_dtl_required(vdev_t *vd);
+extern boolean_t vdev_resilver_needed(vdev_t *vd,
+ uint64_t *minp, uint64_t *maxp);
+
+extern void vdev_hold(vdev_t *);
+extern void vdev_rele(vdev_t *);
+
+extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg);
+extern void vdev_metaslab_fini(vdev_t *vd);
+extern void vdev_metaslab_set_size(vdev_t *);
+extern void vdev_expand(vdev_t *vd, uint64_t txg);
+extern void vdev_split(vdev_t *vd);
+
+
+extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
+extern void vdev_clear_stats(vdev_t *vd);
+extern void vdev_stat_update(zio_t *zio, uint64_t psize);
+extern void vdev_scan_stat_init(vdev_t *vd);
+extern void vdev_propagate_state(vdev_t *vd);
+extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state,
+ vdev_aux_t aux);
+
+extern void vdev_space_update(vdev_t *vd,
+ int64_t alloc_delta, int64_t defer_delta, int64_t space_delta);
+
+extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
+
+extern int vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux);
+extern int vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux);
+extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags,
+ vdev_state_t *);
+extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags);
+extern void vdev_clear(spa_t *spa, vdev_t *vd);
+
+extern boolean_t vdev_is_dead(vdev_t *vd);
+extern boolean_t vdev_readable(vdev_t *vd);
+extern boolean_t vdev_writeable(vdev_t *vd);
+extern boolean_t vdev_allocatable(vdev_t *vd);
+extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio);
+
+extern void vdev_cache_init(vdev_t *vd);
+extern void vdev_cache_fini(vdev_t *vd);
+extern int vdev_cache_read(zio_t *zio);
+extern void vdev_cache_write(zio_t *zio);
+extern void vdev_cache_purge(vdev_t *vd);
+
+extern void vdev_queue_init(vdev_t *vd);
+extern void vdev_queue_fini(vdev_t *vd);
+extern zio_t *vdev_queue_io(zio_t *zio);
+extern void vdev_queue_io_done(zio_t *zio);
+
+extern void vdev_config_dirty(vdev_t *vd);
+extern void vdev_config_clean(vdev_t *vd);
+extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg,
+ boolean_t);
+
+extern void vdev_state_dirty(vdev_t *vd);
+extern void vdev_state_clean(vdev_t *vd);
+
+typedef enum vdev_config_flag {
+ VDEV_CONFIG_SPARE = 1 << 0,
+ VDEV_CONFIG_L2CACHE = 1 << 1,
+ VDEV_CONFIG_REMOVING = 1 << 2
+} vdev_config_flag_t;
+
+extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config);
+extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
+ boolean_t getstats, vdev_config_flag_t flags);
+
+/*
+ * Label routines
+ */
+struct uberblock;
+extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset);
+extern int vdev_label_number(uint64_t psise, uint64_t offset);
+extern nvlist_t *vdev_label_read_config(vdev_t *vd);
+extern void vdev_uberblock_load(zio_t *zio, vdev_t *vd, struct uberblock *ub);
+
+typedef enum {
+ VDEV_LABEL_CREATE, /* create/add a new device */
+ VDEV_LABEL_REPLACE, /* replace an existing device */
+ VDEV_LABEL_SPARE, /* add a new hot spare */
+ VDEV_LABEL_REMOVE, /* remove an existing device */
+ VDEV_LABEL_L2CACHE, /* add an L2ARC cache device */
+ VDEV_LABEL_SPLIT /* generating new label for split-off dev */
+} vdev_labeltype_t;
+
+extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_VDEV_H */