1 files changed, 85 insertions, 0 deletions

diff --git a/sys/dev/hyperv/vmbus/vmbus_brvar.h b/sys/dev/hyperv/vmbus/vmbus_brvar.h
new file mode 100644
index 000000000000..b57a96378dc7
--- /dev/null
+++ b/sys/dev/hyperv/vmbus/vmbus_brvar.h
@@ -0,0 +1,85 @@
+/*-
+ * Copyright (c) 2009-2012,2016 Microsoft Corp.
+ * Copyright (c) 2012 NetApp Inc.
+ * Copyright (c) 2012 Citrix Inc.
+ * 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 unmodified, this list of conditions, and the following
+ *    disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, 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 DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef __HYPERV_PRIV_H__
+#define __HYPERV_PRIV_H__
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/sema.h>
+#include <sys/_iovec.h>
+
+#include <dev/hyperv/vmbus/vmbus_chanvar.h>
+
+struct vmbus_softc;
+
+/*
+ * Private, VM Bus functions
+ */
+struct sysctl_ctx_list;
+struct sysctl_oid;
+
+void	vmbus_br_sysctl_create(struct sysctl_ctx_list *ctx,
+	    struct sysctl_oid *br_tree, hv_vmbus_ring_buffer_info *br,
+	    const char *name);
+
+int			hv_vmbus_ring_buffer_init(
+				hv_vmbus_ring_buffer_info	*ring_info,
+				void				*buffer,
+				uint32_t			buffer_len);
+
+void			hv_ring_buffer_cleanup(
+				hv_vmbus_ring_buffer_info	*ring_info);
+
+int			hv_ring_buffer_write(
+				hv_vmbus_ring_buffer_info	*ring_info,
+				const struct iovec		iov[],
+				uint32_t			iovlen,
+				boolean_t			*need_sig);
+
+int			hv_ring_buffer_peek(
+				hv_vmbus_ring_buffer_info	*ring_info,
+				void				*buffer,
+				uint32_t			buffer_len);
+
+int			hv_ring_buffer_read(
+				hv_vmbus_ring_buffer_info	*ring_info,
+				void				*buffer,
+				uint32_t			buffer_len,
+				uint32_t			offset);
+
+void			hv_ring_buffer_read_begin(
+				hv_vmbus_ring_buffer_info	*ring_info);
+
+uint32_t		hv_ring_buffer_read_end(
+				hv_vmbus_ring_buffer_info	*ring_info);
+
+#endif  /* __HYPERV_PRIV_H__ */