PSARC 2002/240 ZFS

6338653 Integrate ZFS
PSARC 2004/652 - DKIOCFLUSH
5096886 Write caching disks need mechanism to flush cache to physical media

1 files changed, 135 insertions, 0 deletions

diff --git a/usr/src/uts/common/fs/zfs/sys/vdev.h b/usr/src/uts/common/fs/zfs/sys/vdev.h
new file mode 100644
index 0000000000..4113ff2ca6
--- /dev/null
+++ b/usr/src/uts/common/fs/zfs/sys/vdev.h
@@ -0,0 +1,135 @@
+/*
+ * 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 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_VDEV_H
+#define	_SYS_VDEV_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#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
+
+/*
+ * Vdev knobs.
+ */
+typedef struct vdev_knob {
+	char		*vk_name;		/* knob name		*/
+	char		*vk_desc;		/* knob description	*/
+	uint64_t	vk_min;			/* minimum legal value	*/
+	uint64_t	vk_max;			/* maximum legal value	*/
+	uint64_t	vk_default;		/* default value	*/
+	size_t		vk_offset;		/* offset into vdev_t	*/
+} vdev_knob_t;
+
+/*
+ * Fault injection modes.
+ */
+#define	VDEV_FAULT_NONE		0
+#define	VDEV_FAULT_RANDOM	1
+#define	VDEV_FAULT_COUNT	2
+
+extern int vdev_open(vdev_t *);
+extern void vdev_close(vdev_t *);
+extern int vdev_create(vdev_t *, uint64_t txg);
+extern void vdev_init(vdev_t *, uint64_t txg);
+extern void vdev_reopen(vdev_t *, zio_t **zq);
+
+extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
+extern vdev_t *vdev_lookup_by_path(vdev_t *vd, const char *path);
+extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
+extern void vdev_dtl_dirty(space_map_t *sm, uint64_t txg, uint64_t size);
+extern int vdev_dtl_contains(space_map_t *sm, uint64_t txg, uint64_t size);
+extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
+    int scrub_done);
+
+extern const char *vdev_description(vdev_t *vd);
+
+extern void vdev_metaslab_init(vdev_t *vd, uint64_t txg);
+extern void vdev_metaslab_fini(vdev_t *vd);
+
+extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
+extern void vdev_stat_update(zio_t *zio);
+extern void vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type,
+    boolean_t complete);
+extern void vdev_checksum_error(zio_t *zio, vdev_t *vd);
+extern int vdev_getspec(spa_t *spa, uint64_t vdev, char **vdev_spec);
+extern void vdev_set_state(vdev_t *vd, vdev_state_t state, vdev_aux_t aux);
+
+extern void vdev_space_update(vdev_t *vd, uint64_t space_delta,
+    uint64_t alloc_delta);
+
+extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
+
+extern void vdev_io_start(zio_t *zio);
+extern void vdev_io_done(zio_t *zio);
+
+extern int vdev_online(spa_t *spa, const char *path);
+extern int vdev_offline(spa_t *spa, const char *path);
+
+extern int vdev_error_setup(spa_t *spa, const char *path, int mode, int mask,
+    uint64_t arg);
+extern int vdev_error_inject(vdev_t *vd, zio_t *zio);
+extern int vdev_is_dead(vdev_t *vd);
+
+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_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 vdev_knob_t *vdev_knob_next(vdev_knob_t *vk);
+
+extern void vdev_config_dirty(vdev_t *vd);
+extern void vdev_config_clean(vdev_t *vd);
+
+extern nvlist_t *vdev_config_generate(vdev_t *vd, int getstats);
+
+/*
+ * Label routines
+ */
+struct uberblock;
+extern uint64_t vdev_label_offset(uint64_t psize, int l, 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);
+int vdev_label_init(vdev_t *vd, uint64_t create_txg);
+extern int spa_sync_labels(spa_t *spa, uint64_t txg);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_VDEV_H */