1 files changed, 118 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/include/sys/fm/util.h b/sys/contrib/openzfs/include/sys/fm/util.h
new file mode 100644
index 000000000000..ff54b05bb6af
--- /dev/null
+++ b/sys/contrib/openzfs/include/sys/fm/util.h
@@ -0,0 +1,118 @@
+/*
+ * 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) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#ifndef	_SYS_FM_UTIL_H
+#define	_SYS_FM_UTIL_H
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#include <sys/nvpair.h>
+
+/*
+ * Shared user/kernel definitions for class length, error channel name,
+ * and kernel event publisher string.
+ */
+#define	FM_MAX_CLASS 100
+#define	FM_ERROR_CHAN	"com.sun:fm:error"
+#define	FM_PUB		"fm"
+
+/*
+ * ereport dump device transport support
+ *
+ * Ereports are written out to the dump device at a proscribed offset from the
+ * end, similar to in-transit log messages.  The ereports are represented as a
+ * erpt_dump_t header followed by ed_size bytes of packed native nvlist data.
+ *
+ * NOTE: All of these constants and the header must be defined so they have the
+ * same representation for *both* 32-bit and 64-bit producers and consumers.
+ */
+#define	ERPT_MAGIC	0xf00d4eddU
+#define	ERPT_MAX_ERRS	16
+#define	ERPT_DATA_SZ	(6 * 1024)
+#define	ERPT_EVCH_MAX	256
+#define	ERPT_HIWAT	64
+
+typedef struct erpt_dump {
+	uint32_t ed_magic;	/* ERPT_MAGIC or zero to indicate end */
+	uint32_t ed_chksum;	/* checksum32() of packed nvlist data */
+	uint32_t ed_size;	/* ereport (nvl) fixed buf size */
+	uint32_t ed_pad;	/* reserved for future use */
+	hrtime_t ed_hrt_nsec;	/* hrtime of this ereport */
+	hrtime_t ed_hrt_base;	/* hrtime sample corresponding to ed_tod_base */
+	struct {
+		uint64_t sec;	/* seconds since gettimeofday() Epoch */
+		uint64_t nsec;	/* nanoseconds past ed_tod_base.sec */
+	} ed_tod_base;
+} erpt_dump_t;
+
+#ifdef _KERNEL
+
+#define	ZEVENT_SHUTDOWN		0x1
+
+typedef void zevent_cb_t(nvlist_t *, nvlist_t *);
+
+typedef struct zevent_s {
+	nvlist_t	*ev_nvl;	/* protected by the zevent_lock */
+	nvlist_t	*ev_detector;	/* " */
+	list_t		ev_ze_list;	/* " */
+	list_node_t	ev_node;	/* " */
+	zevent_cb_t	*ev_cb;		/* " */
+	uint64_t	ev_eid;
+} zevent_t;
+
+typedef struct zfs_zevent {
+	zevent_t	*ze_zevent;	/* protected by the zevent_lock */
+	list_node_t	ze_node;	/* " */
+	uint64_t	ze_dropped;	/* " */
+} zfs_zevent_t;
+
+extern void fm_init(void);
+extern void fm_fini(void);
+extern void fm_nvprint(nvlist_t *);
+extern void zfs_zevent_post_cb(nvlist_t *nvl, nvlist_t *detector);
+extern int zfs_zevent_post(nvlist_t *, nvlist_t *, zevent_cb_t *);
+extern void zfs_zevent_drain_all(int *);
+extern int zfs_zevent_fd_hold(int, minor_t *, zfs_zevent_t **);
+extern void zfs_zevent_fd_rele(int);
+extern int zfs_zevent_next(zfs_zevent_t *, nvlist_t **, uint64_t *, uint64_t *);
+extern int zfs_zevent_wait(zfs_zevent_t *);
+extern int zfs_zevent_seek(zfs_zevent_t *, uint64_t);
+extern void zfs_zevent_init(zfs_zevent_t **);
+extern void zfs_zevent_destroy(zfs_zevent_t *);
+
+#else
+
+static inline void fm_init(void) { }
+static inline void fm_fini(void) { }
+
+#endif  /* _KERNEL */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _SYS_FM_UTIL_H */