1 files changed, 78 insertions, 0 deletions
diff --git a/sys/xen/xenbus/xenbusb_if.m b/sys/xen/xenbus/xenbusb_if.m
new file mode 100644
index 0000000..a32e3f6
--- /dev/null
+++ b/sys/xen/xenbus/xenbusb_if.m
@@ -0,0 +1,78 @@
+#-
+# Copyright (c) 2010 Spectra Logic Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions, and the following disclaimer,
+#    without modification.
+# 2. Redistributions in binary form must reproduce at minimum a disclaimer
+#    substantially similar to the "NO WARRANTY" disclaimer below
+#    ("Disclaimer") and any redistribution must be conditioned upon
+#    including a substantially similar Disclaimer requirement for further
+#    binary redistribution.
+#
+# NO WARRANTY
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGES.
+#
+# $FreeBSD$
+#
+
+#include <sys/bus.h>
+
+HEADER {
+struct xenbus_device_ivars;
+}
+
+INTERFACE xenbusb;
+
+/**
+ * \brief Enumerate all devices of the given type on this bus.
+ *
+ * \param _dev  NewBus device_t for this XenBus (front/back) bus instance.
+ * \param _type String indicating the device sub-tree (e.g. "vfb", "vif")
+ *              to enumerate. 
+ *
+ * \return  On success, 0. Otherwise an errno value indicating the
+ *          type of failure.
+ *
+ * Devices that are found should be entered into the NewBus hierarchy via
+ * xenbusb_add_device().  xenbusb_add_device() ignores duplicate detects
+ * and ignores duplicate devices, so it can be called unconditionally
+ * for any device found in the XenStore.
+ */
+METHOD int enumerate_type {
+	device_t _dev;
+	const char *_type;
+};
+
+/**
+ * \brief Determine and store the XenStore path for the other end of
+ *        a split device whose local end is represented by ivars.
+ *
+ * If successful, the xd_otherend_path field of the child's instance
+ * variables must be updated.
+ *
+ * \param _dev    NewBus device_t for this XenBus (front/back) bus instance.
+ * \param _ivars  Instance variables from the XenBus child device for
+ *                which to perform this function.
+ *
+ * \return  On success, 0. Otherwise an errno value indicating the
+ *          type of failure.
+ */
+METHOD int get_otherend_node {
+	device_t _dev;
+	struct xenbus_device_ivars *_ivars;
+}