1 files changed, 69 insertions, 0 deletions
diff --git a/sys/dev/hyperv/include/vmbus.h b/sys/dev/hyperv/include/vmbus.h
new file mode 100644
index 0000000..1960e84
--- /dev/null
+++ b/sys/dev/hyperv/include/vmbus.h
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 2016 Microsoft Corp.
+ * 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 _VMBUS_H_
+#define _VMBUS_H_
+
+#include <sys/param.h>
+
+/*
+ * GPA stuffs.
+ */
+struct vmbus_gpa_range {
+	uint32_t	gpa_len;
+	uint32_t	gpa_ofs;
+	uint64_t	gpa_page[0];
+} __packed;
+
+/* This is actually vmbus_gpa_range.gpa_page[1] */
+struct vmbus_gpa {
+	uint32_t	gpa_len;
+	uint32_t	gpa_ofs;
+	uint64_t	gpa_page;
+} __packed;
+
+#define VMBUS_CHANPKT_TYPE_INBAND	0x0006
+#define VMBUS_CHANPKT_TYPE_RXBUF	0x0007
+#define VMBUS_CHANPKT_TYPE_GPA		0x0009
+#define VMBUS_CHANPKT_TYPE_COMP		0x000b
+
+#define VMBUS_CHANPKT_FLAG_RC		0x0001	/* report completion */
+
+#define VMBUS_CHAN_SGLIST_MAX		32
+#define VMBUS_CHAN_PRPLIST_MAX		32
+
+struct hv_vmbus_channel;
+
+int	vmbus_chan_send_sglist(struct hv_vmbus_channel *chan,
+	    struct vmbus_gpa sg[], int sglen, void *data, int dlen,
+	    uint64_t xactid);
+int	vmbus_chan_send_prplist(struct hv_vmbus_channel *chan,
+	    struct vmbus_gpa_range *prp, int prp_cnt, void *data, int dlen,
+	    uint64_t xactid);
+
+#endif	/* !_VMBUS_H_ */