diff -r b6d54fc7632a -r ac16f94826c3 components/open-fabrics/libsif/include/sif/sif_int_user.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/open-fabrics/libsif/include/sif/sif_int_user.h	Tue Apr 19 22:11:38 2016 -0700
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. 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.
+ *
+ * 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.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+/*
+ *   sif_int_user.h: This file defines special internal data structures used
+ *   to communicate between libsif and the sif driver.
+ *   This file is included both from user space and kernel space so
+ *   it must not contain any kernel/user specific header file includes.
+ *   This file is internal to libsif/sif driver since it relies on HW specific
+ *   include files.
+ */
+
+#ifndef _SIF_INT_USER_H
+#define	_SIF_INT_USER_H
+
+
+#include <psif_hw_data.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define	SIF_CACHE_BYTES 64
+
+/*
+ * We use the extension here to communicate with the driver
+ * (for correct debugfs reporting)
+ */
+typedef struct sif_sq_sw {
+	struct psif_sq_sw d;	/* Hardware visible descriptor */
+	/* separate the cache lines */
+	__u8 fill[SIF_CACHE_BYTES - sizeof (struct psif_sq_sw)];
+	__u16 last_seq;		/* Last used sq seq.num (req. sq->lock) */
+	/* Last sq seq.number seen in a compl (req. cq->lock) */
+	volatile __u16 head_seq;
+}sif_sq_sw_t;
+
+typedef struct sif_rq_sw {
+	struct psif_rq_sw d;	/* Hardware visible descriptor */
+	/* separate the cache lines */
+	__u8 fill[SIF_CACHE_BYTES - sizeof (struct psif_rq_sw)];
+	/* current length of queue as #posted - #completed */
+	volatile uint32_t length;
+	__u32 next_seq; 	/* First unused sequence number */
+}sif_rq_sw_t;
+
+typedef struct sif_cq_sw {
+	struct psif_cq_sw d;	/* Hardware visible descriptor */
+	/* separate the cache lines */
+	__u8 fill[SIF_CACHE_BYTES - sizeof (struct psif_cq_sw)];
+	__u32 next_seq;		/* First unused sequence number */
+	/* Local copy kept in sync w/hw visible head_indx */
+	__u32 cached_head;
+	/* Last next_seq reported in completion for req_notify_cq */
+	__u32 last_hw_seq;
+	/* Set if req_notify_cq has been called but event not processed */
+	__u32 armed;
+	/* Number of in-flight completions observed by poll_cq */
+	__u32 miss_cnt;
+	/* Number of times 1 or more in-flight completions was seen */
+	__u32 miss_occ;
+}sif_cq_sw_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SIF_INT_USER_H */