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diff --git a/drivers/net/cxgb4vf/t4vf_defs.h b/drivers/net/cxgb4vf/t4vf_defs.h
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+/*
+ * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
+ * driver for Linux.
+ *
+ * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __T4VF_DEFS_H__
+#define __T4VF_DEFS_H__
+
+#include "../cxgb4/t4_regs.h"
+
+/*
+ * The VF Register Map.
+ *
+ * The Scatter Gather Engine (SGE), Multiport Support module (MPS), PIO Local
+ * bus module (PL) and CPU Interface Module (CIM) components are mapped via
+ * the Slice to Module Map Table (see below) in the Physical Function Register
+ * Map.  The Mail Box Data (MBDATA) range is mapped via the PCI-E Mailbox Base
+ * and Offset registers in the PF Register Map.  The MBDATA base address is
+ * quite constrained as it determines the Mailbox Data addresses for both PFs
+ * and VFs, and therefore must fit in both the VF and PF Register Maps without
+ * overlapping other registers.
+ */
+#define T4VF_SGE_BASE_ADDR      0x0000
+#define T4VF_MPS_BASE_ADDR      0x0100
+#define T4VF_PL_BASE_ADDR       0x0200
+#define T4VF_MBDATA_BASE_ADDR   0x0240
+#define T4VF_CIM_BASE_ADDR      0x0300
+
+#define T4VF_REGMAP_START       0x0000
+#define T4VF_REGMAP_SIZE        0x0400
+
+/*
+ * There's no hardware limitation which requires that the addresses of the
+ * Mailbox Data in the fixed CIM PF map and the programmable VF map must
+ * match.  However, it's a useful convention ...
+ */
+#if T4VF_MBDATA_BASE_ADDR != CIM_PF_MAILBOX_DATA
+#error T4VF_MBDATA_BASE_ADDR must match CIM_PF_MAILBOX_DATA!
+#endif
+
+/*
+ * Virtual Function "Slice to Module Map Table" definitions.
+ *
+ * This table allows us to map subsets of the various module register sets
+ * into the T4VF Register Map.  Each table entry identifies the index of the
+ * module whose registers are being mapped, the offset within the module's
+ * register set that the mapping should start at, the limit of the mapping,
+ * and the offset within the T4VF Register Map to which the module's registers
+ * are being mapped.  All addresses and qualtities are in terms of 32-bit
+ * words.  The "limit" value is also in terms of 32-bit words and is equal to
+ * the last address mapped in the T4VF Register Map 1 (i.e. it's a "<="
+ * relation rather than a "<").
+ */
+#define T4VF_MOD_MAP(module, index, first, last) \
+        T4VF_MOD_MAP_##module##_INDEX  = (index), \
+        T4VF_MOD_MAP_##module##_FIRST  = (first), \
+        T4VF_MOD_MAP_##module##_LAST   = (last), \
+        T4VF_MOD_MAP_##module##_OFFSET = ((first)/4), \
+        T4VF_MOD_MAP_##module##_BASE = \
+                (T4VF_##module##_BASE_ADDR/4 + (first)/4), \
+        T4VF_MOD_MAP_##module##_LIMIT = \
+                (T4VF_##module##_BASE_ADDR/4 + (last)/4),
+
+#define SGE_VF_KDOORBELL 0x0
+#define SGE_VF_GTS 0x4
+#define MPS_VF_CTL 0x0
+#define MPS_VF_STAT_RX_VF_ERR_FRAMES_H 0xfc
+#define PL_VF_WHOAMI 0x0
+#define CIM_VF_EXT_MAILBOX_CTRL 0x0
+#define CIM_VF_EXT_MAILBOX_STATUS 0x4
+
+enum {
+    T4VF_MOD_MAP(SGE, 2, SGE_VF_KDOORBELL, SGE_VF_GTS)
+    T4VF_MOD_MAP(MPS, 0, MPS_VF_CTL, MPS_VF_STAT_RX_VF_ERR_FRAMES_H)
+    T4VF_MOD_MAP(PL,  3, PL_VF_WHOAMI, PL_VF_WHOAMI)
+    T4VF_MOD_MAP(CIM, 1, CIM_VF_EXT_MAILBOX_CTRL, CIM_VF_EXT_MAILBOX_STATUS)
+};
+
+/*
+ * There isn't a Slice to Module Map Table entry for the Mailbox Data
+ * registers, but it's convenient to use similar names as above.  There are 8
+ * little-endian 64-bit Mailbox Data registers.  Note that the "instances"
+ * value below is in terms of 32-bit words which matches the "word" addressing
+ * space we use above for the Slice to Module Map Space.
+ */
+#define NUM_CIM_VF_MAILBOX_DATA_INSTANCES 16
+
+#define T4VF_MBDATA_FIRST       0
+#define T4VF_MBDATA_LAST        ((NUM_CIM_VF_MAILBOX_DATA_INSTANCES-1)*4)
+
+#endif /* __T4T4VF_DEFS_H__ */