NTB: Add IDT 89HPESxNTx PCIe-switches support

IDT 89HPESxNTx device series is PCIe-switches, which support
Non-Transparent bridging between domains connected to the device ports.
Since new NTB API exposes multi-port interface and messaging API, the
IDT NT-functions can be now supported in the kernel. This driver adds
the following functionality:
1) Multi-port NTB API to have information of possible NT-functions
activated in compliance with available device ports.
2) Memory windows of direct and look up table based address translation
with all possible combinations of BARs setup.
3) Traditional doorbell NTB API.
4) One-on-one messaging NTB API.

There are some IDT PCIe-switch setups, which must be done before any of
the NTB peers started. It can be performed either by system BIOS via
IDT SMBus-slave interface or by pre-initialized IDT PCIe-switch EEPROM:
1) NT-functions of corresponding ports must be activated using
SWPARTxCTL and SWPORTxCTL registers.
2) BAR0 must be configured to expose NT-function configuration
registers map.
3) The rest of the BARs must have at least one memory window
configured, otherwise the driver will just return an error.
Temperature sensor of IDT PCIe-switches can be also optionally
activated by BIOS or EEPROM.
(See IDT documentations for details of how the pre-initialization can
be done)

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

1 files changed, 1149 insertions, 0 deletions

diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.h b/drivers/ntb/hw/idt/ntb_hw_idt.h
new file mode 100644
index 000000000000..856fd182f6f4
--- /dev/null
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.h
@@ -0,0 +1,1149 @@
+/*
+ *   This file is provided under a GPLv2 license.  When using or
+ *   redistributing this file, you may do so under that license.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ *   Copyright (C) 2016 T-Platforms All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms and conditions of the GNU General Public License,
+ *   version 2, as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ *   Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, one can be found http://www.gnu.org/licenses/.
+ *
+ *   The full GNU General Public License is included in this distribution in
+ *   the file called "COPYING".
+ *
+ *   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
+ *   OWNER 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.
+ *
+ * IDT PCIe-switch NTB Linux driver
+ *
+ * Contact Information:
+ * Serge Semin <fancer.lancer@gmail.com>, <Sergey.Semin@t-platforms.ru>
+ */
+
+#ifndef NTB_HW_IDT_H
+#define NTB_HW_IDT_H
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/ntb.h>
+
+
+/*
+ * Macro is used to create the struct pci_device_id that matches
+ * the supported IDT PCIe-switches
+ * @devname: Capitalized name of the particular device
+ * @data: Variable passed to the driver of the particular device
+ */
+#define IDT_PCI_DEVICE_IDS(devname, data) \
+        .vendor = PCI_VENDOR_ID_IDT, .device = PCI_DEVICE_ID_IDT_##devname, \
+        .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
+        .class = (PCI_CLASS_BRIDGE_OTHER << 8), .class_mask = (0xFFFF00), \
+        .driver_data = (kernel_ulong_t)&data
+
+/*
+ * IDT PCIe-switches device IDs
+ */
+#define PCI_DEVICE_ID_IDT_89HPES24NT6AG2  0x8091
+#define PCI_DEVICE_ID_IDT_89HPES32NT8AG2  0x808F
+#define PCI_DEVICE_ID_IDT_89HPES32NT8BG2  0x8088
+#define PCI_DEVICE_ID_IDT_89HPES12NT12G2  0x8092
+#define PCI_DEVICE_ID_IDT_89HPES16NT16G2  0x8090
+#define PCI_DEVICE_ID_IDT_89HPES24NT24G2  0x808E
+#define PCI_DEVICE_ID_IDT_89HPES32NT24AG2 0x808C
+#define PCI_DEVICE_ID_IDT_89HPES32NT24BG2 0x808A
+
+/*
+ * NT-function Configuration Space registers
+ * NOTE 1) The IDT PCIe-switch internal data is little-endian
+ *      so it must be taken into account in the driver
+ *      internals.
+ *      2) Additionally the registers should be accessed either
+ *      with byte-enables corresponding to their native size or
+ *      the size of one DWORD
+ *
+ * So to simplify the driver code, there is only DWORD-sized read/write
+ * operations utilized.
+ */
+/* PCI Express Configuration Space */
+/* PCI Express command/status register  (DWORD) */
+#define IDT_NT_PCICMDSTS                0x00004U
+/* PCI Express Device Capabilities      (DWORD) */
+#define IDT_NT_PCIEDCAP                 0x00044U
+/* PCI Express Device Control/Status    (WORD+WORD) */
+#define IDT_NT_PCIEDCTLSTS              0x00048U
+/* PCI Express Link Capabilities        (DWORD) */
+#define IDT_NT_PCIELCAP                 0x0004CU
+/* PCI Express Link Control/Status      (WORD+WORD) */
+#define IDT_NT_PCIELCTLSTS              0x00050U
+/* PCI Express Device Capabilities 2    (DWORD) */
+#define IDT_NT_PCIEDCAP2                0x00064U
+/* PCI Express Device Control 2         (WORD+WORD) */
+#define IDT_NT_PCIEDCTL2                0x00068U
+/* PCI Power Management Control and Status (DWORD) */
+#define IDT_NT_PMCSR                    0x000C4U
+/*==========================================*/
+/* IDT Proprietary NT-port-specific registers */
+/* NT-function main control registers */
+/* NT Endpoint Control                  (DWORD) */
+#define IDT_NT_NTCTL                    0x00400U
+/* NT Endpoint Interrupt Status/Mask    (DWORD) */
+#define IDT_NT_NTINTSTS                 0x00404U
+#define IDT_NT_NTINTMSK                 0x00408U
+/* NT Endpoint Signal Data              (DWORD) */
+#define IDT_NT_NTSDATA                  0x0040CU
+/* NT Endpoint Global Signal            (DWORD) */
+#define IDT_NT_NTGSIGNAL                0x00410U
+/* Internal Error Reporting Mask 0/1    (DWORD) */
+#define IDT_NT_NTIERRORMSK0             0x00414U
+#define IDT_NT_NTIERRORMSK1             0x00418U
+/* Doorbel registers */
+/* NT Outbound Doorbell Set             (DWORD) */
+#define IDT_NT_OUTDBELLSET              0x00420U
+/* NT Inbound Doorbell Status/Mask      (DWORD) */
+#define IDT_NT_INDBELLSTS               0x00428U
+#define IDT_NT_INDBELLMSK               0x0042CU
+/* Message registers */
+/* Outbound Message N                   (DWORD) */
+#define IDT_NT_OUTMSG0                  0x00430U
+#define IDT_NT_OUTMSG1                  0x00434U
+#define IDT_NT_OUTMSG2                  0x00438U
+#define IDT_NT_OUTMSG3                  0x0043CU
+/* Inbound Message N                    (DWORD) */
+#define IDT_NT_INMSG0                   0x00440U
+#define IDT_NT_INMSG1                   0x00444U
+#define IDT_NT_INMSG2                   0x00448U
+#define IDT_NT_INMSG3                   0x0044CU
+/* Inbound Message Source N             (DWORD) */
+#define IDT_NT_INMSGSRC0                0x00450U
+#define IDT_NT_INMSGSRC1                0x00454U
+#define IDT_NT_INMSGSRC2                0x00458U
+#define IDT_NT_INMSGSRC3                0x0045CU
+/* Message Status                       (DWORD) */
+#define IDT_NT_MSGSTS                   0x00460U
+/* Message Status Mask                  (DWORD) */
+#define IDT_NT_MSGSTSMSK                0x00464U
+/* BAR-setup registers */
+/* BAR N Setup/Limit Address/Lower and Upper Translated Base Address (DWORD) */
+#define IDT_NT_BARSETUP0                0x00470U
+#define IDT_NT_BARLIMIT0                0x00474U
+#define IDT_NT_BARLTBASE0               0x00478U
+#define IDT_NT_BARUTBASE0               0x0047CU
+#define IDT_NT_BARSETUP1                0x00480U
+#define IDT_NT_BARLIMIT1                0x00484U
+#define IDT_NT_BARLTBASE1               0x00488U
+#define IDT_NT_BARUTBASE1               0x0048CU
+#define IDT_NT_BARSETUP2                0x00490U
+#define IDT_NT_BARLIMIT2                0x00494U
+#define IDT_NT_BARLTBASE2               0x00498U
+#define IDT_NT_BARUTBASE2               0x0049CU
+#define IDT_NT_BARSETUP3                0x004A0U
+#define IDT_NT_BARLIMIT3                0x004A4U
+#define IDT_NT_BARLTBASE3               0x004A8U
+#define IDT_NT_BARUTBASE3               0x004ACU
+#define IDT_NT_BARSETUP4                0x004B0U
+#define IDT_NT_BARLIMIT4                0x004B4U
+#define IDT_NT_BARLTBASE4               0x004B8U
+#define IDT_NT_BARUTBASE4               0x004BCU
+#define IDT_NT_BARSETUP5                0x004C0U
+#define IDT_NT_BARLIMIT5                0x004C4U
+#define IDT_NT_BARLTBASE5               0x004C8U
+#define IDT_NT_BARUTBASE5               0x004CCU
+/* NT mapping table registers */
+/* NT Mapping Table Address/Status/Data (DWORD) */
+#define IDT_NT_NTMTBLADDR               0x004D0U
+#define IDT_NT_NTMTBLSTS                0x004D4U
+#define IDT_NT_NTMTBLDATA               0x004D8U
+/* Requester ID (Bus:Device:Function) Capture   (DWORD) */
+#define IDT_NT_REQIDCAP                 0x004DCU
+/* Memory Windows Lookup table registers */
+/* Lookup Table Offset/Lower, Middle and Upper data     (DWORD) */
+#define IDT_NT_LUTOFFSET                0x004E0U
+#define IDT_NT_LUTLDATA                 0x004E4U
+#define IDT_NT_LUTMDATA                 0x004E8U
+#define IDT_NT_LUTUDATA                 0x004ECU
+/* NT Endpoint Uncorrectable/Correctable Errors Emulation registers (DWORD) */
+#define IDT_NT_NTUEEM                   0x004F0U
+#define IDT_NT_NTCEEM                   0x004F4U
+/* Global Address Space Access/Data registers   (DWARD) */
+#define IDT_NT_GASAADDR                 0x00FF8U
+#define IDT_NT_GASADATA                 0x00FFCU
+
+/*
+ * IDT PCIe-switch Global Configuration and Status registers
+ */
+/* Port N Configuration register in global space */
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP0_PCIECMDSTS          0x01004U
+#define IDT_SW_NTP0_PCIELCTLSTS         0x01050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP0_NTCTL               0x01400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP0_BARSETUP0           0x01470U
+#define IDT_SW_NTP0_BARLIMIT0           0x01474U
+#define IDT_SW_NTP0_BARLTBASE0          0x01478U
+#define IDT_SW_NTP0_BARUTBASE0          0x0147CU
+#define IDT_SW_NTP0_BARSETUP1           0x01480U
+#define IDT_SW_NTP0_BARLIMIT1           0x01484U
+#define IDT_SW_NTP0_BARLTBASE1          0x01488U
+#define IDT_SW_NTP0_BARUTBASE1          0x0148CU
+#define IDT_SW_NTP0_BARSETUP2           0x01490U
+#define IDT_SW_NTP0_BARLIMIT2           0x01494U
+#define IDT_SW_NTP0_BARLTBASE2          0x01498U
+#define IDT_SW_NTP0_BARUTBASE2          0x0149CU
+#define IDT_SW_NTP0_BARSETUP3           0x014A0U
+#define IDT_SW_NTP0_BARLIMIT3           0x014A4U
+#define IDT_SW_NTP0_BARLTBASE3          0x014A8U
+#define IDT_SW_NTP0_BARUTBASE3          0x014ACU
+#define IDT_SW_NTP0_BARSETUP4           0x014B0U
+#define IDT_SW_NTP0_BARLIMIT4           0x014B4U
+#define IDT_SW_NTP0_BARLTBASE4          0x014B8U
+#define IDT_SW_NTP0_BARUTBASE4          0x014BCU
+#define IDT_SW_NTP0_BARSETUP5           0x014C0U
+#define IDT_SW_NTP0_BARLIMIT5           0x014C4U
+#define IDT_SW_NTP0_BARLTBASE5          0x014C8U
+#define IDT_SW_NTP0_BARUTBASE5          0x014CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP2_PCIECMDSTS          0x05004U
+#define IDT_SW_NTP2_PCIELCTLSTS         0x05050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP2_NTCTL               0x05400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP2_BARSETUP0           0x05470U
+#define IDT_SW_NTP2_BARLIMIT0           0x05474U
+#define IDT_SW_NTP2_BARLTBASE0          0x05478U
+#define IDT_SW_NTP2_BARUTBASE0          0x0547CU
+#define IDT_SW_NTP2_BARSETUP1           0x05480U
+#define IDT_SW_NTP2_BARLIMIT1           0x05484U
+#define IDT_SW_NTP2_BARLTBASE1          0x05488U
+#define IDT_SW_NTP2_BARUTBASE1          0x0548CU
+#define IDT_SW_NTP2_BARSETUP2           0x05490U
+#define IDT_SW_NTP2_BARLIMIT2           0x05494U
+#define IDT_SW_NTP2_BARLTBASE2          0x05498U
+#define IDT_SW_NTP2_BARUTBASE2          0x0549CU
+#define IDT_SW_NTP2_BARSETUP3           0x054A0U
+#define IDT_SW_NTP2_BARLIMIT3           0x054A4U
+#define IDT_SW_NTP2_BARLTBASE3          0x054A8U
+#define IDT_SW_NTP2_BARUTBASE3          0x054ACU
+#define IDT_SW_NTP2_BARSETUP4           0x054B0U
+#define IDT_SW_NTP2_BARLIMIT4           0x054B4U
+#define IDT_SW_NTP2_BARLTBASE4          0x054B8U
+#define IDT_SW_NTP2_BARUTBASE4          0x054BCU
+#define IDT_SW_NTP2_BARSETUP5           0x054C0U
+#define IDT_SW_NTP2_BARLIMIT5           0x054C4U
+#define IDT_SW_NTP2_BARLTBASE5          0x054C8U
+#define IDT_SW_NTP2_BARUTBASE5          0x054CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP4_PCIECMDSTS          0x09004U
+#define IDT_SW_NTP4_PCIELCTLSTS         0x09050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP4_NTCTL               0x09400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP4_BARSETUP0           0x09470U
+#define IDT_SW_NTP4_BARLIMIT0           0x09474U
+#define IDT_SW_NTP4_BARLTBASE0          0x09478U
+#define IDT_SW_NTP4_BARUTBASE0          0x0947CU
+#define IDT_SW_NTP4_BARSETUP1           0x09480U
+#define IDT_SW_NTP4_BARLIMIT1           0x09484U
+#define IDT_SW_NTP4_BARLTBASE1          0x09488U
+#define IDT_SW_NTP4_BARUTBASE1          0x0948CU
+#define IDT_SW_NTP4_BARSETUP2           0x09490U
+#define IDT_SW_NTP4_BARLIMIT2           0x09494U
+#define IDT_SW_NTP4_BARLTBASE2          0x09498U
+#define IDT_SW_NTP4_BARUTBASE2          0x0949CU
+#define IDT_SW_NTP4_BARSETUP3           0x094A0U
+#define IDT_SW_NTP4_BARLIMIT3           0x094A4U
+#define IDT_SW_NTP4_BARLTBASE3          0x094A8U
+#define IDT_SW_NTP4_BARUTBASE3          0x094ACU
+#define IDT_SW_NTP4_BARSETUP4           0x094B0U
+#define IDT_SW_NTP4_BARLIMIT4           0x094B4U
+#define IDT_SW_NTP4_BARLTBASE4          0x094B8U
+#define IDT_SW_NTP4_BARUTBASE4          0x094BCU
+#define IDT_SW_NTP4_BARSETUP5           0x094C0U
+#define IDT_SW_NTP4_BARLIMIT5           0x094C4U
+#define IDT_SW_NTP4_BARLTBASE5          0x094C8U
+#define IDT_SW_NTP4_BARUTBASE5          0x094CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP6_PCIECMDSTS          0x0D004U
+#define IDT_SW_NTP6_PCIELCTLSTS         0x0D050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP6_NTCTL               0x0D400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP6_BARSETUP0           0x0D470U
+#define IDT_SW_NTP6_BARLIMIT0           0x0D474U
+#define IDT_SW_NTP6_BARLTBASE0          0x0D478U
+#define IDT_SW_NTP6_BARUTBASE0          0x0D47CU
+#define IDT_SW_NTP6_BARSETUP1           0x0D480U
+#define IDT_SW_NTP6_BARLIMIT1           0x0D484U
+#define IDT_SW_NTP6_BARLTBASE1          0x0D488U
+#define IDT_SW_NTP6_BARUTBASE1          0x0D48CU
+#define IDT_SW_NTP6_BARSETUP2           0x0D490U
+#define IDT_SW_NTP6_BARLIMIT2           0x0D494U
+#define IDT_SW_NTP6_BARLTBASE2          0x0D498U
+#define IDT_SW_NTP6_BARUTBASE2          0x0D49CU
+#define IDT_SW_NTP6_BARSETUP3           0x0D4A0U
+#define IDT_SW_NTP6_BARLIMIT3           0x0D4A4U
+#define IDT_SW_NTP6_BARLTBASE3          0x0D4A8U
+#define IDT_SW_NTP6_BARUTBASE3          0x0D4ACU
+#define IDT_SW_NTP6_BARSETUP4           0x0D4B0U
+#define IDT_SW_NTP6_BARLIMIT4           0x0D4B4U
+#define IDT_SW_NTP6_BARLTBASE4          0x0D4B8U
+#define IDT_SW_NTP6_BARUTBASE4          0x0D4BCU
+#define IDT_SW_NTP6_BARSETUP5           0x0D4C0U
+#define IDT_SW_NTP6_BARLIMIT5           0x0D4C4U
+#define IDT_SW_NTP6_BARLTBASE5          0x0D4C8U
+#define IDT_SW_NTP6_BARUTBASE5          0x0D4CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP8_PCIECMDSTS          0x11004U
+#define IDT_SW_NTP8_PCIELCTLSTS         0x11050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP8_NTCTL               0x11400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP8_BARSETUP0           0x11470U
+#define IDT_SW_NTP8_BARLIMIT0           0x11474U
+#define IDT_SW_NTP8_BARLTBASE0          0x11478U
+#define IDT_SW_NTP8_BARUTBASE0          0x1147CU
+#define IDT_SW_NTP8_BARSETUP1           0x11480U
+#define IDT_SW_NTP8_BARLIMIT1           0x11484U
+#define IDT_SW_NTP8_BARLTBASE1          0x11488U
+#define IDT_SW_NTP8_BARUTBASE1          0x1148CU
+#define IDT_SW_NTP8_BARSETUP2           0x11490U
+#define IDT_SW_NTP8_BARLIMIT2           0x11494U
+#define IDT_SW_NTP8_BARLTBASE2          0x11498U
+#define IDT_SW_NTP8_BARUTBASE2          0x1149CU
+#define IDT_SW_NTP8_BARSETUP3           0x114A0U
+#define IDT_SW_NTP8_BARLIMIT3           0x114A4U
+#define IDT_SW_NTP8_BARLTBASE3          0x114A8U
+#define IDT_SW_NTP8_BARUTBASE3          0x114ACU
+#define IDT_SW_NTP8_BARSETUP4           0x114B0U
+#define IDT_SW_NTP8_BARLIMIT4           0x114B4U
+#define IDT_SW_NTP8_BARLTBASE4          0x114B8U
+#define IDT_SW_NTP8_BARUTBASE4          0x114BCU
+#define IDT_SW_NTP8_BARSETUP5           0x114C0U
+#define IDT_SW_NTP8_BARLIMIT5           0x114C4U
+#define IDT_SW_NTP8_BARLTBASE5          0x114C8U
+#define IDT_SW_NTP8_BARUTBASE5          0x114CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP12_PCIECMDSTS         0x19004U
+#define IDT_SW_NTP12_PCIELCTLSTS        0x19050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP12_NTCTL              0x19400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP12_BARSETUP0          0x19470U
+#define IDT_SW_NTP12_BARLIMIT0          0x19474U
+#define IDT_SW_NTP12_BARLTBASE0         0x19478U
+#define IDT_SW_NTP12_BARUTBASE0         0x1947CU
+#define IDT_SW_NTP12_BARSETUP1          0x19480U
+#define IDT_SW_NTP12_BARLIMIT1          0x19484U
+#define IDT_SW_NTP12_BARLTBASE1         0x19488U
+#define IDT_SW_NTP12_BARUTBASE1         0x1948CU
+#define IDT_SW_NTP12_BARSETUP2          0x19490U
+#define IDT_SW_NTP12_BARLIMIT2          0x19494U
+#define IDT_SW_NTP12_BARLTBASE2         0x19498U
+#define IDT_SW_NTP12_BARUTBASE2         0x1949CU
+#define IDT_SW_NTP12_BARSETUP3          0x194A0U
+#define IDT_SW_NTP12_BARLIMIT3          0x194A4U
+#define IDT_SW_NTP12_BARLTBASE3         0x194A8U
+#define IDT_SW_NTP12_BARUTBASE3         0x194ACU
+#define IDT_SW_NTP12_BARSETUP4          0x194B0U
+#define IDT_SW_NTP12_BARLIMIT4          0x194B4U
+#define IDT_SW_NTP12_BARLTBASE4         0x194B8U
+#define IDT_SW_NTP12_BARUTBASE4         0x194BCU
+#define IDT_SW_NTP12_BARSETUP5          0x194C0U
+#define IDT_SW_NTP12_BARLIMIT5          0x194C4U
+#define IDT_SW_NTP12_BARLTBASE5         0x194C8U
+#define IDT_SW_NTP12_BARUTBASE5         0x194CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP16_PCIECMDSTS         0x21004U
+#define IDT_SW_NTP16_PCIELCTLSTS        0x21050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP16_NTCTL              0x21400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP16_BARSETUP0          0x21470U
+#define IDT_SW_NTP16_BARLIMIT0          0x21474U
+#define IDT_SW_NTP16_BARLTBASE0         0x21478U
+#define IDT_SW_NTP16_BARUTBASE0         0x2147CU
+#define IDT_SW_NTP16_BARSETUP1          0x21480U
+#define IDT_SW_NTP16_BARLIMIT1          0x21484U
+#define IDT_SW_NTP16_BARLTBASE1         0x21488U
+#define IDT_SW_NTP16_BARUTBASE1         0x2148CU
+#define IDT_SW_NTP16_BARSETUP2          0x21490U
+#define IDT_SW_NTP16_BARLIMIT2          0x21494U
+#define IDT_SW_NTP16_BARLTBASE2         0x21498U
+#define IDT_SW_NTP16_BARUTBASE2         0x2149CU
+#define IDT_SW_NTP16_BARSETUP3          0x214A0U
+#define IDT_SW_NTP16_BARLIMIT3          0x214A4U
+#define IDT_SW_NTP16_BARLTBASE3         0x214A8U
+#define IDT_SW_NTP16_BARUTBASE3         0x214ACU
+#define IDT_SW_NTP16_BARSETUP4          0x214B0U
+#define IDT_SW_NTP16_BARLIMIT4          0x214B4U
+#define IDT_SW_NTP16_BARLTBASE4         0x214B8U
+#define IDT_SW_NTP16_BARUTBASE4         0x214BCU
+#define IDT_SW_NTP16_BARSETUP5          0x214C0U
+#define IDT_SW_NTP16_BARLIMIT5          0x214C4U
+#define IDT_SW_NTP16_BARLTBASE5         0x214C8U
+#define IDT_SW_NTP16_BARUTBASE5         0x214CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP20_PCIECMDSTS         0x29004U
+#define IDT_SW_NTP20_PCIELCTLSTS        0x29050U
+/* NT-function control register         (DWORD) */
+#define IDT_SW_NTP20_NTCTL              0x29400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP20_BARSETUP0          0x29470U
+#define IDT_SW_NTP20_BARLIMIT0          0x29474U
+#define IDT_SW_NTP20_BARLTBASE0         0x29478U
+#define IDT_SW_NTP20_BARUTBASE0         0x2947CU
+#define IDT_SW_NTP20_BARSETUP1          0x29480U
+#define IDT_SW_NTP20_BARLIMIT1          0x29484U
+#define IDT_SW_NTP20_BARLTBASE1         0x29488U
+#define IDT_SW_NTP20_BARUTBASE1         0x2948CU
+#define IDT_SW_NTP20_BARSETUP2          0x29490U
+#define IDT_SW_NTP20_BARLIMIT2          0x29494U
+#define IDT_SW_NTP20_BARLTBASE2         0x29498U
+#define IDT_SW_NTP20_BARUTBASE2         0x2949CU
+#define IDT_SW_NTP20_BARSETUP3          0x294A0U
+#define IDT_SW_NTP20_BARLIMIT3          0x294A4U
+#define IDT_SW_NTP20_BARLTBASE3         0x294A8U
+#define IDT_SW_NTP20_BARUTBASE3         0x294ACU
+#define IDT_SW_NTP20_BARSETUP4          0x294B0U
+#define IDT_SW_NTP20_BARLIMIT4          0x294B4U
+#define IDT_SW_NTP20_BARLTBASE4         0x294B8U
+#define IDT_SW_NTP20_BARUTBASE4         0x294BCU
+#define IDT_SW_NTP20_BARSETUP5          0x294C0U
+#define IDT_SW_NTP20_BARLIMIT5          0x294C4U
+#define IDT_SW_NTP20_BARLTBASE5         0x294C8U
+#define IDT_SW_NTP20_BARUTBASE5         0x294CCU
+/* IDT PCIe-switch control register     (DWORD) */
+#define IDT_SW_CTL                      0x3E000U
+/* Boot Configuration Vector Status     (DWORD) */
+#define IDT_SW_BCVSTS                   0x3E004U
+/* Port Clocking Mode                   (DWORD) */
+#define IDT_SW_PCLKMODE                 0x3E008U
+/* Reset Drain Delay                    (DWORD) */
+#define IDT_SW_RDRAINDELAY              0x3E080U
+/* Port Operating Mode Change Drain Delay (DWORD) */
+#define IDT_SW_POMCDELAY                0x3E084U
+/* Side Effect Delay                    (DWORD) */
+#define IDT_SW_SEDELAY                  0x3E088U
+/* Upstream Secondary Bus Reset Delay   (DWORD) */
+#define IDT_SW_SSBRDELAY                0x3E08CU
+/* Switch partition N Control/Status/Failover registers */
+#define IDT_SW_SWPART0CTL               0x3E100U
+#define IDT_SW_SWPART0STS               0x3E104U
+#define IDT_SW_SWPART0FCTL              0x3E108U
+#define IDT_SW_SWPART1CTL               0x3E120U
+#define IDT_SW_SWPART1STS               0x3E124U
+#define IDT_SW_SWPART1FCTL              0x3E128U
+#define IDT_SW_SWPART2CTL               0x3E140U
+#define IDT_SW_SWPART2STS               0x3E144U
+#define IDT_SW_SWPART2FCTL              0x3E148U
+#define IDT_SW_SWPART3CTL               0x3E160U
+#define IDT_SW_SWPART3STS               0x3E164U
+#define IDT_SW_SWPART3FCTL              0x3E168U
+#define IDT_SW_SWPART4CTL               0x3E180U
+#define IDT_SW_SWPART4STS               0x3E184U
+#define IDT_SW_SWPART4FCTL              0x3E188U
+#define IDT_SW_SWPART5CTL               0x3E1A0U
+#define IDT_SW_SWPART5STS               0x3E1A4U
+#define IDT_SW_SWPART5FCTL              0x3E1A8U
+#define IDT_SW_SWPART6CTL               0x3E1C0U
+#define IDT_SW_SWPART6STS               0x3E1C4U
+#define IDT_SW_SWPART6FCTL              0x3E1C8U
+#define IDT_SW_SWPART7CTL               0x3E1E0U
+#define IDT_SW_SWPART7STS               0x3E1E4U
+#define IDT_SW_SWPART7FCTL              0x3E1E8U
+/* Switch port N control and status registers */
+#define IDT_SW_SWPORT0CTL               0x3E200U
+#define IDT_SW_SWPORT0STS               0x3E204U
+#define IDT_SW_SWPORT0FCTL              0x3E208U
+#define IDT_SW_SWPORT2CTL               0x3E240U
+#define IDT_SW_SWPORT2STS               0x3E244U
+#define IDT_SW_SWPORT2FCTL              0x3E248U
+#define IDT_SW_SWPORT4CTL               0x3E280U
+#define IDT_SW_SWPORT4STS               0x3E284U
+#define IDT_SW_SWPORT4FCTL              0x3E288U
+#define IDT_SW_SWPORT6CTL               0x3E2C0U
+#define IDT_SW_SWPORT6STS               0x3E2C4U
+#define IDT_SW_SWPORT6FCTL              0x3E2C8U
+#define IDT_SW_SWPORT8CTL               0x3E300U
+#define IDT_SW_SWPORT8STS               0x3E304U
+#define IDT_SW_SWPORT8FCTL              0x3E308U
+#define IDT_SW_SWPORT12CTL              0x3E380U
+#define IDT_SW_SWPORT12STS              0x3E384U
+#define IDT_SW_SWPORT12FCTL             0x3E388U
+#define IDT_SW_SWPORT16CTL              0x3E400U
+#define IDT_SW_SWPORT16STS              0x3E404U
+#define IDT_SW_SWPORT16FCTL             0x3E408U
+#define IDT_SW_SWPORT20CTL              0x3E480U
+#define IDT_SW_SWPORT20STS              0x3E484U
+#define IDT_SW_SWPORT20FCTL             0x3E488U
+/* Switch Event registers */
+/* Switch Event Status/Mask/Partition mask (DWORD) */
+#define IDT_SW_SESTS                    0x3EC00U
+#define IDT_SW_SEMSK                    0x3EC04U
+#define IDT_SW_SEPMSK                   0x3EC08U
+/* Switch Event Link Up/Down Status/Mask (DWORD) */
+#define IDT_SW_SELINKUPSTS              0x3EC0CU
+#define IDT_SW_SELINKUPMSK              0x3EC10U
+#define IDT_SW_SELINKDNSTS              0x3EC14U
+#define IDT_SW_SELINKDNMSK              0x3EC18U
+/* Switch Event Fundamental Reset Status/Mask (DWORD) */
+#define IDT_SW_SEFRSTSTS                0x3EC1CU
+#define IDT_SW_SEFRSTMSK                0x3EC20U
+/* Switch Event Hot Reset Status/Mask   (DWORD) */
+#define IDT_SW_SEHRSTSTS                0x3EC24U
+#define IDT_SW_SEHRSTMSK                0x3EC28U
+/* Switch Event Failover Mask           (DWORD) */
+#define IDT_SW_SEFOVRMSK                0x3EC2CU
+/* Switch Event Global Signal Status/Mask (DWORD) */
+#define IDT_SW_SEGSIGSTS                0x3EC30U
+#define IDT_SW_SEGSIGMSK                0x3EC34U
+/* NT Global Doorbell Status            (DWORD) */
+#define IDT_SW_GDBELLSTS                0x3EC3CU
+/* Switch partition N message M control (msgs routing table) (DWORD) */
+#define IDT_SW_SWP0MSGCTL0              0x3EE00U
+#define IDT_SW_SWP1MSGCTL0              0x3EE04U
+#define IDT_SW_SWP2MSGCTL0              0x3EE08U
+#define IDT_SW_SWP3MSGCTL0              0x3EE0CU
+#define IDT_SW_SWP4MSGCTL0              0x3EE10U
+#define IDT_SW_SWP5MSGCTL0              0x3EE14U
+#define IDT_SW_SWP6MSGCTL0              0x3EE18U
+#define IDT_SW_SWP7MSGCTL0              0x3EE1CU
+#define IDT_SW_SWP0MSGCTL1              0x3EE20U
+#define IDT_SW_SWP1MSGCTL1              0x3EE24U
+#define IDT_SW_SWP2MSGCTL1              0x3EE28U
+#define IDT_SW_SWP3MSGCTL1              0x3EE2CU
+#define IDT_SW_SWP4MSGCTL1              0x3EE30U
+#define IDT_SW_SWP5MSGCTL1              0x3EE34U
+#define IDT_SW_SWP6MSGCTL1              0x3EE38U
+#define IDT_SW_SWP7MSGCTL1              0x3EE3CU
+#define IDT_SW_SWP0MSGCTL2              0x3EE40U
+#define IDT_SW_SWP1MSGCTL2              0x3EE44U
+#define IDT_SW_SWP2MSGCTL2              0x3EE48U
+#define IDT_SW_SWP3MSGCTL2              0x3EE4CU
+#define IDT_SW_SWP4MSGCTL2              0x3EE50U
+#define IDT_SW_SWP5MSGCTL2              0x3EE54U
+#define IDT_SW_SWP6MSGCTL2              0x3EE58U
+#define IDT_SW_SWP7MSGCTL2              0x3EE5CU
+#define IDT_SW_SWP0MSGCTL3              0x3EE60U
+#define IDT_SW_SWP1MSGCTL3              0x3EE64U
+#define IDT_SW_SWP2MSGCTL3              0x3EE68U
+#define IDT_SW_SWP3MSGCTL3              0x3EE6CU
+#define IDT_SW_SWP4MSGCTL3              0x3EE70U
+#define IDT_SW_SWP5MSGCTL3              0x3EE74U
+#define IDT_SW_SWP6MSGCTL3              0x3EE78U
+#define IDT_SW_SWP7MSGCTL3              0x3EE7CU
+/* SMBus Status and Control registers   (DWORD) */
+#define IDT_SW_SMBUSSTS                 0x3F188U
+#define IDT_SW_SMBUSCTL                 0x3F18CU
+/* Serial EEPROM Interface              (DWORD) */
+#define IDT_SW_EEPROMINTF               0x3F190U
+/* MBus I/O Expander Address N          (DWORD) */
+#define IDT_SW_IOEXPADDR0               0x3F198U
+#define IDT_SW_IOEXPADDR1               0x3F19CU
+#define IDT_SW_IOEXPADDR2               0x3F1A0U
+#define IDT_SW_IOEXPADDR3               0x3F1A4U
+#define IDT_SW_IOEXPADDR4               0x3F1A8U
+#define IDT_SW_IOEXPADDR5               0x3F1ACU
+/* General Purpose Events Control and Status registers (DWORD) */
+#define IDT_SW_GPECTL                   0x3F1B0U
+#define IDT_SW_GPESTS                   0x3F1B4U
+/* Temperature sensor Control/Status/Alarm/Adjustment/Slope registers */
+#define IDT_SW_TMPCTL                   0x3F1D4U
+#define IDT_SW_TMPSTS                   0x3F1D8U
+#define IDT_SW_TMPALARM                 0x3F1DCU
+#define IDT_SW_TMPADJ                   0x3F1E0U
+#define IDT_SW_TSSLOPE                  0x3F1E4U
+/* SMBus Configuration Block header log (DWORD) */
+#define IDT_SW_SMBUSCBHL                0x3F1E8U
+
+/*
+ * Common registers related constants
+ * @IDT_REG_ALIGN:      Registers alignment used in the driver
+ * @IDT_REG_PCI_MAX:    Maximum PCI configuration space register value
+ * @IDT_REG_SW_MAX:     Maximum global register value
+ */
+#define IDT_REG_ALIGN                   4
+#define IDT_REG_PCI_MAX                 0x00FFFU
+#define IDT_REG_SW_MAX                  0x3FFFFU
+
+/*
+ * PCICMDSTS register fields related constants
+ * @IDT_PCICMDSTS_IOAE: I/O access enable
+ * @IDT_PCICMDSTS_MAE:  Memory access enable
+ * @IDT_PCICMDSTS_BME:  Bus master enable
+ */
+#define IDT_PCICMDSTS_IOAE              0x00000001U
+#define IDT_PCICMDSTS_MAE               0x00000002U
+#define IDT_PCICMDSTS_BME               0x00000004U
+
+/*
+ * PCIEDCAP register fields related constants
+ * @IDT_PCIEDCAP_MPAYLOAD_MASK:  Maximum payload size mask
+ * @IDT_PCIEDCAP_MPAYLOAD_FLD:   Maximum payload size field offset
+ * @IDT_PCIEDCAP_MPAYLOAD_S128:  Max supported payload size of 128 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S256:  Max supported payload size of 256 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S512:  Max supported payload size of 512 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S1024: Max supported payload size of 1024 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S2048: Max supported payload size of 2048 bytes
+ */
+#define IDT_PCIEDCAP_MPAYLOAD_MASK      0x00000007U
+#define IDT_PCIEDCAP_MPAYLOAD_FLD       0
+#define IDT_PCIEDCAP_MPAYLOAD_S128      0x00000000U
+#define IDT_PCIEDCAP_MPAYLOAD_S256      0x00000001U
+#define IDT_PCIEDCAP_MPAYLOAD_S512      0x00000002U
+#define IDT_PCIEDCAP_MPAYLOAD_S1024     0x00000003U
+#define IDT_PCIEDCAP_MPAYLOAD_S2048     0x00000004U
+
+/*
+ * PCIEDCTLSTS registers fields related constants
+ * @IDT_PCIEDCTL_MPS_MASK:      Maximum payload size mask
+ * @IDT_PCIEDCTL_MPS_FLD:       MPS field offset
+ * @IDT_PCIEDCTL_MPS_S128:      Max payload size of 128 bytes
+ * @IDT_PCIEDCTL_MPS_S256:      Max payload size of 256 bytes
+ * @IDT_PCIEDCTL_MPS_S512:      Max payload size of 512 bytes
+ * @IDT_PCIEDCTL_MPS_S1024:     Max payload size of 1024 bytes
+ * @IDT_PCIEDCTL_MPS_S2048:     Max payload size of 2048 bytes
+ * @IDT_PCIEDCTL_MPS_S4096:     Max payload size of 4096 bytes
+ */
+#define IDT_PCIEDCTLSTS_MPS_MASK        0x000000E0U
+#define IDT_PCIEDCTLSTS_MPS_FLD         5
+#define IDT_PCIEDCTLSTS_MPS_S128        0x00000000U
+#define IDT_PCIEDCTLSTS_MPS_S256        0x00000020U
+#define IDT_PCIEDCTLSTS_MPS_S512        0x00000040U
+#define IDT_PCIEDCTLSTS_MPS_S1024       0x00000060U
+#define IDT_PCIEDCTLSTS_MPS_S2048       0x00000080U
+#define IDT_PCIEDCTLSTS_MPS_S4096       0x000000A0U
+
+/*
+ * PCIELCAP register fields related constants
+ * @IDT_PCIELCAP_PORTNUM_MASK:  Port number field mask
+ * @IDT_PCIELCAP_PORTNUM_FLD:   Port number field offset
+ */
+#define IDT_PCIELCAP_PORTNUM_MASK       0xFF000000U
+#define IDT_PCIELCAP_PORTNUM_FLD        24
+
+/*
+ * PCIELCTLSTS registers fields related constants
+ * @IDT_PCIELSTS_CLS_MASK:      Current link speed mask
+ * @IDT_PCIELSTS_CLS_FLD:       Current link speed field offset
+ * @IDT_PCIELSTS_NLW_MASK:      Negotiated link width mask
+ * @IDT_PCIELSTS_NLW_FLD:       Negotiated link width field offset
+ * @IDT_PCIELSTS_SCLK_COM:      Common slot clock configuration
+ */
+#define IDT_PCIELCTLSTS_CLS_MASK        0x000F0000U
+#define IDT_PCIELCTLSTS_CLS_FLD         16
+#define IDT_PCIELCTLSTS_NLW_MASK        0x03F00000U
+#define IDT_PCIELCTLSTS_NLW_FLD         20
+#define IDT_PCIELCTLSTS_SCLK_COM        0x10000000U
+
+/*
+ * NTCTL register fields related constants
+ * @IDT_NTCTL_IDPROTDIS:        ID Protection check disable (disable MTBL)
+ * @IDT_NTCTL_CPEN:             Completion enable
+ * @IDT_NTCTL_RNS:              Request no snoop processing (if MTBL disabled)
+ * @IDT_NTCTL_ATP:              Address type processing (if MTBL disabled)
+ */
+#define IDT_NTCTL_IDPROTDIS             0x00000001U
+#define IDT_NTCTL_CPEN                  0x00000002U
+#define IDT_NTCTL_RNS                   0x00000004U
+#define IDT_NTCTL_ATP                   0x00000008U
+
+/*
+ * NTINTSTS register fields related constants
+ * @IDT_NTINTSTS_MSG:           Message interrupt bit
+ * @IDT_NTINTSTS_DBELL:         Doorbell interrupt bit
+ * @IDT_NTINTSTS_SEVENT:        Switch Event interrupt bit
+ * @IDT_NTINTSTS_TMPSENSOR:     Temperature sensor interrupt bit
+ */
+#define IDT_NTINTSTS_MSG                0x00000001U
+#define IDT_NTINTSTS_DBELL              0x00000002U
+#define IDT_NTINTSTS_SEVENT             0x00000008U
+#define IDT_NTINTSTS_TMPSENSOR          0x00000080U
+
+/*
+ * NTINTMSK register fields related constants
+ * @IDT_NTINTMSK_MSG:           Message interrupt mask bit
+ * @IDT_NTINTMSK_DBELL:         Doorbell interrupt mask bit
+ * @IDT_NTINTMSK_SEVENT:        Switch Event interrupt mask bit
+ * @IDT_NTINTMSK_TMPSENSOR:     Temperature sensor interrupt mask bit
+ * @IDT_NTINTMSK_ALL:           All the useful interrupts mask
+ */
+#define IDT_NTINTMSK_MSG                0x00000001U
+#define IDT_NTINTMSK_DBELL              0x00000002U
+#define IDT_NTINTMSK_SEVENT             0x00000008U
+#define IDT_NTINTMSK_TMPSENSOR          0x00000080U
+#define IDT_NTINTMSK_ALL \
+        (IDT_NTINTMSK_MSG | IDT_NTINTMSK_DBELL | \
+         IDT_NTINTMSK_SEVENT | IDT_NTINTMSK_TMPSENSOR)
+
+/*
+ * NTGSIGNAL register fields related constants
+ * @IDT_NTGSIGNAL_SET:  Set global signal of the local partition
+ */
+#define IDT_NTGSIGNAL_SET               0x00000001U
+
+/*
+ * BARSETUP register fields related constants
+ * @IDT_BARSETUP_TYPE_MASK:     Mask of the TYPE field
+ * @IDT_BARSETUP_TYPE_32:       32-bit addressing BAR
+ * @IDT_BARSETUP_TYPE_64:       64-bit addressing BAR
+ * @IDT_BARSETUP_PREF:          Value of the BAR prefetchable field
+ * @IDT_BARSETUP_SIZE_MASK:     Mask of the SIZE field
+ * @IDT_BARSETUP_SIZE_FLD:      SIZE field offset
+ * @IDT_BARSETUP_SIZE_CFG:      SIZE field value in case of config space MODE
+ * @IDT_BARSETUP_MODE_CFG:      Configuration space BAR mode
+ * @IDT_BARSETUP_ATRAN_MASK:    ATRAN field mask
+ * @IDT_BARSETUP_ATRAN_FLD:     ATRAN field offset
+ * @IDT_BARSETUP_ATRAN_DIR:     Direct address translation memory window
+ * @IDT_BARSETUP_ATRAN_LUT12:   12-entry lookup table
+ * @IDT_BARSETUP_ATRAN_LUT24:   24-entry lookup table
+ * @IDT_BARSETUP_TPART_MASK:    TPART field mask
+ * @IDT_BARSETUP_TPART_FLD:     TPART field offset
+ * @IDT_BARSETUP_EN:            BAR enable bit
+ */
+#define IDT_BARSETUP_TYPE_MASK          0x00000006U
+#define IDT_BARSETUP_TYPE_FLD           0
+#define IDT_BARSETUP_TYPE_32            0x00000000U
+#define IDT_BARSETUP_TYPE_64            0x00000004U
+#define IDT_BARSETUP_PREF               0x00000008U
+#define IDT_BARSETUP_SIZE_MASK          0x000003F0U
+#define IDT_BARSETUP_SIZE_FLD           4
+#define IDT_BARSETUP_SIZE_CFG           0x000000C0U
+#define IDT_BARSETUP_MODE_CFG           0x00000400U
+#define IDT_BARSETUP_ATRAN_MASK         0x00001800U
+#define IDT_BARSETUP_ATRAN_FLD          11
+#define IDT_BARSETUP_ATRAN_DIR          0x00000000U
+#define IDT_BARSETUP_ATRAN_LUT12        0x00000800U
+#define IDT_BARSETUP_ATRAN_LUT24        0x00001000U
+#define IDT_BARSETUP_TPART_MASK         0x0000E000U
+#define IDT_BARSETUP_TPART_FLD          13
+#define IDT_BARSETUP_EN                 0x80000000U
+
+/*
+ * NTMTBLDATA register fields related constants
+ * @IDT_NTMTBLDATA_VALID:       Set the MTBL entry being valid
+ * @IDT_NTMTBLDATA_REQID_MASK:  Bus:Device:Function field mask
+ * @IDT_NTMTBLDATA_REQID_FLD:   Bus:Device:Function field offset
+ * @IDT_NTMTBLDATA_PART_MASK:   Partition field mask
+ * @IDT_NTMTBLDATA_PART_FLD:    Partition field offset
+ * @IDT_NTMTBLDATA_ATP_TRANS:   Enable AT field translation on request TLPs
+ * @IDT_NTMTBLDATA_CNS_INV:     Enable No Snoop attribute inversion of
+ *                              Completion TLPs
+ * @IDT_NTMTBLDATA_RNS_INV:     Enable No Snoop attribute inversion of
+ *                              Request TLPs
+ */
+#define IDT_NTMTBLDATA_VALID            0x00000001U
+#define IDT_NTMTBLDATA_REQID_MASK       0x0001FFFEU
+#define IDT_NTMTBLDATA_REQID_FLD        1
+#define IDT_NTMTBLDATA_PART_MASK        0x000E0000U
+#define IDT_NTMTBLDATA_PART_FLD         17
+#define IDT_NTMTBLDATA_ATP_TRANS        0x20000000U
+#define IDT_NTMTBLDATA_CNS_INV          0x40000000U
+#define IDT_NTMTBLDATA_RNS_INV          0x80000000U
+
+/*
+ * REQIDCAP register fields related constants
+ * @IDT_REQIDCAP_REQID_MASK:    Request ID field mask
+ * @IDT_REQIDCAP_REQID_FLD:     Request ID field offset
+ */
+#define IDT_REQIDCAP_REQID_MASK         0x0000FFFFU
+#define IDT_REQIDCAP_REQID_FLD          0
+
+/*
+ * LUTOFFSET register fields related constants
+ * @IDT_LUTOFFSET_INDEX_MASK:   Lookup table index field mask
+ * @IDT_LUTOFFSET_INDEX_FLD:    Lookup table index field offset
+ * @IDT_LUTOFFSET_BAR_MASK:     Lookup table BAR select field mask
+ * @IDT_LUTOFFSET_BAR_FLD:      Lookup table BAR select field offset
+ */
+#define IDT_LUTOFFSET_INDEX_MASK        0x0000001FU
+#define IDT_LUTOFFSET_INDEX_FLD         0
+#define IDT_LUTOFFSET_BAR_MASK          0x00000700U
+#define IDT_LUTOFFSET_BAR_FLD           8
+
+/*
+ * LUTUDATA register fields related constants
+ * @IDT_LUTUDATA_PART_MASK:     Partition field mask
+ * @IDT_LUTUDATA_PART_FLD:      Partition field offset
+ * @IDT_LUTUDATA_VALID:         Lookup table entry valid bit
+ */
+#define IDT_LUTUDATA_PART_MASK          0x0000000FU
+#define IDT_LUTUDATA_PART_FLD           0
+#define IDT_LUTUDATA_VALID              0x80000000U
+
+/*
+ * SWPARTxSTS register fields related constants
+ * @IDT_SWPARTxSTS_SCI:         Switch partition state change initiated
+ * @IDT_SWPARTxSTS_SCC:         Switch partition state change completed
+ * @IDT_SWPARTxSTS_STATE_MASK:  Switch partition state mask
+ * @IDT_SWPARTxSTS_STATE_FLD:   Switch partition state field offset
+ * @IDT_SWPARTxSTS_STATE_DIS:   Switch partition disabled
+ * @IDT_SWPARTxSTS_STATE_ACT:   Switch partition enabled
+ * @IDT_SWPARTxSTS_STATE_RES:   Switch partition in reset
+ * @IDT_SWPARTxSTS_US:          Switch partition has upstream port
+ * @IDT_SWPARTxSTS_USID_MASK:   Switch partition upstream port ID mask
+ * @IDT_SWPARTxSTS_USID_FLD:    Switch partition upstream port ID field offset
+ * @IDT_SWPARTxSTS_NT:          Upstream port has NT function
+ * @IDT_SWPARTxSTS_DMA:         Upstream port has DMA function
+ */
+#define IDT_SWPARTxSTS_SCI              0x00000001U
+#define IDT_SWPARTxSTS_SCC              0x00000002U
+#define IDT_SWPARTxSTS_STATE_MASK       0x00000060U
+#define IDT_SWPARTxSTS_STATE_FLD        5
+#define IDT_SWPARTxSTS_STATE_DIS        0x00000000U
+#define IDT_SWPARTxSTS_STATE_ACT        0x00000020U
+#define IDT_SWPARTxSTS_STATE_RES        0x00000060U
+#define IDT_SWPARTxSTS_US               0x00000100U
+#define IDT_SWPARTxSTS_USID_MASK        0x00003E00U
+#define IDT_SWPARTxSTS_USID_FLD         9
+#define IDT_SWPARTxSTS_NT               0x00004000U
+#define IDT_SWPARTxSTS_DMA              0x00008000U
+
+/*
+ * SWPORTxSTS register fields related constants
+ * @IDT_SWPORTxSTS_OMCI:        Operation mode change initiated
+ * @IDT_SWPORTxSTS_OMCC:        Operation mode change completed
+ * @IDT_SWPORTxSTS_LINKUP:      Link up status
+ * @IDT_SWPORTxSTS_DS:          Port lanes behave as downstream lanes
+ * @IDT_SWPORTxSTS_MODE_MASK:   Port mode field mask
+ * @IDT_SWPORTxSTS_MODE_FLD:    Port mode field offset
+ * @IDT_SWPORTxSTS_MODE_DIS:    Port mode - disabled
+ * @IDT_SWPORTxSTS_MODE_DS:     Port mode - downstream switch port
+ * @IDT_SWPORTxSTS_MODE_US:     Port mode - upstream switch port
+ * @IDT_SWPORTxSTS_MODE_NT:     Port mode - NT function
+ * @IDT_SWPORTxSTS_MODE_USNT:   Port mode - upstream switch port with NTB
+ * @IDT_SWPORTxSTS_MODE_UNAT:   Port mode - unattached
+ * @IDT_SWPORTxSTS_MODE_USDMA:  Port mode - upstream switch port with DMA
+ * @IDT_SWPORTxSTS_MODE_USNTDMA:Port mode - upstream port with NTB and DMA
+ * @IDT_SWPORTxSTS_MODE_NTDMA:  Port mode - NT function with DMA
+ * @IDT_SWPORTxSTS_SWPART_MASK: Port partition field mask
+ * @IDT_SWPORTxSTS_SWPART_FLD:  Port partition field offset
+ * @IDT_SWPORTxSTS_DEVNUM_MASK: Port device number field mask
+ * @IDT_SWPORTxSTS_DEVNUM_FLD:  Port device number field offset
+ */
+#define IDT_SWPORTxSTS_OMCI             0x00000001U
+#define IDT_SWPORTxSTS_OMCC             0x00000002U
+#define IDT_SWPORTxSTS_LINKUP           0x00000010U
+#define IDT_SWPORTxSTS_DS               0x00000020U
+#define IDT_SWPORTxSTS_MODE_MASK        0x000003C0U
+#define IDT_SWPORTxSTS_MODE_FLD         6
+#define IDT_SWPORTxSTS_MODE_DIS         0x00000000U
+#define IDT_SWPORTxSTS_MODE_DS          0x00000040U
+#define IDT_SWPORTxSTS_MODE_US          0x00000080U
+#define IDT_SWPORTxSTS_MODE_NT          0x000000C0U
+#define IDT_SWPORTxSTS_MODE_USNT        0x00000100U
+#define IDT_SWPORTxSTS_MODE_UNAT        0x00000140U
+#define IDT_SWPORTxSTS_MODE_USDMA       0x00000180U
+#define IDT_SWPORTxSTS_MODE_USNTDMA     0x000001C0U
+#define IDT_SWPORTxSTS_MODE_NTDMA       0x00000200U
+#define IDT_SWPORTxSTS_SWPART_MASK      0x00001C00U
+#define IDT_SWPORTxSTS_SWPART_FLD       10
+#define IDT_SWPORTxSTS_DEVNUM_MASK      0x001F0000U
+#define IDT_SWPORTxSTS_DEVNUM_FLD       16
+
+/*
+ * SEMSK register fields related constants
+ * @IDT_SEMSK_LINKUP:   Link Up event mask bit
+ * @IDT_SEMSK_LINKDN:   Link Down event mask bit
+ * @IDT_SEMSK_GSIGNAL:  Global Signal event mask bit
+ */
+#define IDT_SEMSK_LINKUP                0x00000001U
+#define IDT_SEMSK_LINKDN                0x00000002U
+#define IDT_SEMSK_GSIGNAL               0x00000020U
+
+/*
+ * SWPxMSGCTL register fields related constants
+ * @IDT_SWPxMSGCTL_REG_MASK:    Register select field mask
+ * @IDT_SWPxMSGCTL_REG_FLD:     Register select field offset
+ * @IDT_SWPxMSGCTL_PART_MASK:   Partition select field mask
+ * @IDT_SWPxMSGCTL_PART_FLD:    Partition select field offset
+ */
+#define IDT_SWPxMSGCTL_REG_MASK         0x00000003U
+#define IDT_SWPxMSGCTL_REG_FLD          0
+#define IDT_SWPxMSGCTL_PART_MASK        0x00000070U
+#define IDT_SWPxMSGCTL_PART_FLD         4
+
+/*
+ * TMPSTS register fields related constants
+ * @IDT_TMPSTS_TEMP_MASK:       Current temperature field mask
+ * @IDT_TMPSTS_TEMP_FLD:        Current temperature field offset
+ */
+#define IDT_TMPSTS_TEMP_MASK            0x000000FFU
+#define IDT_TMPSTS_TEMP_FLD             0
+
+/*
+ * Helper macro to get/set the corresponding field value
+ * @GET_FIELD:          Retrieve the value of the corresponding field
+ * @SET_FIELD:          Set the specified field up
+ * @IS_FLD_SET:         Check whether a field is set with value
+ */
+#define GET_FIELD(field, data) \
+        (((u32)(data) & IDT_ ##field## _MASK) >> IDT_ ##field## _FLD)
+#define SET_FIELD(field, data, value) \
+        (((u32)(data) & ~IDT_ ##field## _MASK) | \
+         ((u32)(value) << IDT_ ##field## _FLD))
+#define IS_FLD_SET(field, data, value) \
+        (((u32)(data) & IDT_ ##field## _MASK) == IDT_ ##field## _ ##value)
+
+/*
+ * Useful registers masks:
+ * @IDT_DBELL_MASK:     Doorbell bits mask
+ * @IDT_OUTMSG_MASK:    Out messages status bits mask
+ * @IDT_INMSG_MASK:     In messages status bits mask
+ * @IDT_MSG_MASK:       Any message status bits mask
+ */
+#define IDT_DBELL_MASK          ((u32)0xFFFFFFFFU)
+#define IDT_OUTMSG_MASK         ((u32)0x0000000FU)
+#define IDT_INMSG_MASK          ((u32)0x000F0000U)
+#define IDT_MSG_MASK            (IDT_INMSG_MASK | IDT_OUTMSG_MASK)
+
+/*
+ * Number of IDT NTB resources:
+ * @IDT_MSG_CNT:        Number of Message registers
+ * @IDT_BAR_CNT:        Number of BARs of each port
+ * @IDT_MTBL_ENTRY_CNT: Number mapping table entries
+ */
+#define IDT_MSG_CNT             4
+#define IDT_BAR_CNT             6
+#define IDT_MTBL_ENTRY_CNT      64
+
+/*
+ * General IDT PCIe-switch constant
+ * @IDT_MAX_NR_PORTS:   Maximum number of ports per IDT PCIe-switch
+ * @IDT_MAX_NR_PARTS:   Maximum number of partitions per IDT PCIe-switch
+ * @IDT_MAX_NR_PEERS:   Maximum number of NT-peers per IDT PCIe-switch
+ * @IDT_MAX_NR_MWS:     Maximum number of Memory Widows
+ * @IDT_PCIE_REGSIZE:   Size of the registers in bytes
+ * @IDT_TRANS_ALIGN:    Alignment of translated base address
+ * @IDT_DIR_SIZE_ALIGN: Alignment of size setting for direct translated MWs.
+ *                      Even though the lower 10 bits are reserved, they are
+ *                      treated by IDT as one's so basically there is no any
+ *                      alignment of size limit for DIR address translation.
+ */
+#define IDT_MAX_NR_PORTS        24
+#define IDT_MAX_NR_PARTS        8
+#define IDT_MAX_NR_PEERS        8
+#define IDT_MAX_NR_MWS          29
+#define IDT_PCIE_REGSIZE        4
+#define IDT_TRANS_ALIGN         4
+#define IDT_DIR_SIZE_ALIGN      1
+
+/*
+ * IDT Memory Windows type. Depending on the device settings, IDT supports
+ * Direct Address Translation MW registers and Lookup Table registers
+ * @IDT_MW_DIR:         Direct address translation
+ * @IDT_MW_LUT12:       12-entry lookup table entry
+ * @IDT_MW_LUT24:       24-entry lookup table entry
+ *
+ * NOTE These values are exactly the same as one of the BARSETUP ATRAN field
+ */
+enum idt_mw_type {
+        IDT_MW_DIR = 0x0,
+        IDT_MW_LUT12 = 0x1,
+        IDT_MW_LUT24 = 0x2
+};
+
+/*
+ * IDT PCIe-switch model private data
+ * @name:       Device name
+ * @port_cnt:   Total number of NT endpoint ports
+ * @ports:      Port ids
+ */
+struct idt_89hpes_cfg {
+        char *name;
+        unsigned char port_cnt;
+        unsigned char ports[];
+};
+
+/*
+ * Memory window configuration structure
+ * @type:       Type of the memory window (direct address translation or lookup
+ *              table)
+ *
+ * @bar:        PCIe BAR the memory window referenced to
+ * @idx:        Index of the memory window within the BAR
+ *
+ * @addr_align: Alignment of translated address
+ * @size_align: Alignment of memory window size
+ * @size_max:   Maximum size of memory window
+ */
+struct idt_mw_cfg {
+        enum idt_mw_type type;
+
+        unsigned char bar;
+        unsigned char idx;
+
+        u64 addr_align;
+        u64 size_align;
+        u64 size_max;
+};
+
+/*
+ * Description structure of peer IDT NT-functions:
+ * @port:               NT-function port
+ * @part:               NT-function partition
+ *
+ * @mw_cnt:             Number of memory windows supported by NT-function
+ * @mws:                Array of memory windows descriptors
+ */
+struct idt_ntb_peer {
+        unsigned char port;
+        unsigned char part;
+
+        unsigned char mw_cnt;
+        struct idt_mw_cfg *mws;
+};
+
+/*
+ * Description structure of local IDT NT-function:
+ * @ntb:                Linux NTB-device description structure
+ * @swcfg:              Pointer to the structure of local IDT PCIe-switch
+ *                      specific cofnfigurations
+ *
+ * @port:               Local NT-function port
+ * @part:               Local NT-function partition
+ *
+ * @peer_cnt:           Number of peers with activated NTB-function
+ * @peers:              Array of peers descripting structures
+ * @port_idx_map:       Map of port number -> peer index
+ * @part_idx_map:       Map of partition number -> peer index
+ *
+ * @mtbl_lock:          Mapping table access lock
+ *
+ * @mw_cnt:             Number of memory windows supported by NT-function
+ * @mws:                Array of memory windows descriptors
+ * @lut_lock:           Lookup table access lock
+ *
+ * @msg_locks:          Message registers mapping table lockers
+ *
+ * @cfgspc:             Virtual address of the memory mapped configuration
+ *                      space of the NT-function
+ * @db_mask_lock:       Doorbell mask register lock
+ * @msg_mask_lock:      Message mask register lock
+ * @gasa_lock:          GASA registers access lock
+ *
+ * @dbgfs_info:         DebugFS info node
+ */
+struct idt_ntb_dev {
+        struct ntb_dev ntb;
+        struct idt_89hpes_cfg *swcfg;
+
+        unsigned char port;
+        unsigned char part;
+
+        unsigned char peer_cnt;
+        struct idt_ntb_peer peers[IDT_MAX_NR_PEERS];
+        char port_idx_map[IDT_MAX_NR_PORTS];
+        char part_idx_map[IDT_MAX_NR_PARTS];
+
+        spinlock_t mtbl_lock;
+
+        unsigned char mw_cnt;
+        struct idt_mw_cfg *mws;
+        spinlock_t lut_lock;
+
+        spinlock_t msg_locks[IDT_MSG_CNT];
+
+        void __iomem *cfgspc;
+        spinlock_t db_mask_lock;
+        spinlock_t msg_mask_lock;
+        spinlock_t gasa_lock;
+
+        struct dentry *dbgfs_info;
+};
+#define to_ndev_ntb(__ntb) container_of(__ntb, struct idt_ntb_dev, ntb)
+
+/*
+ * Descriptor of the IDT PCIe-switch BAR resources
+ * @setup:      BAR setup register
+ * @limit:      BAR limit register
+ * @ltbase:     Lower translated base address
+ * @utbase:     Upper translated base address
+ */
+struct idt_ntb_bar {
+        unsigned int setup;
+        unsigned int limit;
+        unsigned int ltbase;
+        unsigned int utbase;
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch message resources
+ * @in:         Inbound message register
+ * @out:        Outbound message register
+ * @src:        Source of inbound message register
+ */
+struct idt_ntb_msg {
+        unsigned int in;
+        unsigned int out;
+        unsigned int src;
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch NT-function specific parameters in the
+ * PCI Configuration Space
+ * @bars:       BARs related registers
+ * @msgs:       Messaging related registers
+ */
+struct idt_ntb_regs {
+        struct idt_ntb_bar bars[IDT_BAR_CNT];
+        struct idt_ntb_msg msgs[IDT_MSG_CNT];
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch port specific parameters in the
+ * Global Configuration Space
+ * @pcicmdsts:   PCI command/status register
+ * @pcielctlsts: PCIe link control/status
+ *
+ * @ctl:        Port control register
+ * @sts:        Port status register
+ *
+ * @bars:       BARs related registers
+ */
+struct idt_ntb_port {
+        unsigned int pcicmdsts;
+        unsigned int pcielctlsts;
+        unsigned int ntctl;
+
+        unsigned int ctl;
+        unsigned int sts;
+
+        struct idt_ntb_bar bars[IDT_BAR_CNT];
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch partition specific parameters.
+ * @ctl:        Partition control register in the Global Address Space
+ * @sts:        Partition status register in the Global Address Space
+ * @msgctl:     Messages control registers
+ */
+struct idt_ntb_part {
+        unsigned int ctl;
+        unsigned int sts;
+        unsigned int msgctl[IDT_MSG_CNT];
+};
+
+#endif /* NTB_HW_IDT_H */