diff mbox series

[06/22] Windows DPDK libraries and applications have now been updated to the latest public release v18.08, of the main DPDK source.

Message ID 1597360905-74106-7-git-send-email-navasile@linux.microsoft.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series windows/netuio: add netuio driver for Windows | expand

Checks

Context Check Description
ci/checkpatch warning coding style issues

Commit Message

Narcisa Ana Maria Vasile Aug. 13, 2020, 11:21 p.m. UTC
From: Harini Ramakrishnan <haramakr@microsoft.com>

---
 kernel/windows/netuio/netuio.inf         | 118 +++++++++
 kernel/windows/netuio/netuio.rc          | Bin 0 -> 4772 bytes
 kernel/windows/netuio/netuio_dev.c       | 306 +++++++++++++++++++++++
 kernel/windows/netuio/netuio_dev.h       |  65 +++++
 kernel/windows/netuio/netuio_drv.c       | 142 +++++++++++
 kernel/windows/netuio/netuio_drv.h       |  33 +++
 kernel/windows/netuio/netuio_interface.h |  69 +++++
 kernel/windows/netuio/netuio_queue.c     | 271 ++++++++++++++++++++
 kernel/windows/netuio/netuio_queue.h     |  30 +++
 kernel/windows/netuio/resource.h         |  14 ++
 10 files changed, 1048 insertions(+)
 create mode 100644 kernel/windows/netuio/netuio.inf
 create mode 100644 kernel/windows/netuio/netuio.rc
 create mode 100644 kernel/windows/netuio/netuio_dev.c
 create mode 100644 kernel/windows/netuio/netuio_dev.h
 create mode 100644 kernel/windows/netuio/netuio_drv.c
 create mode 100644 kernel/windows/netuio/netuio_drv.h
 create mode 100644 kernel/windows/netuio/netuio_interface.h
 create mode 100644 kernel/windows/netuio/netuio_queue.c
 create mode 100644 kernel/windows/netuio/netuio_queue.h
 create mode 100644 kernel/windows/netuio/resource.h
diff mbox series

Patch

diff --git a/kernel/windows/netuio/netuio.inf b/kernel/windows/netuio/netuio.inf
new file mode 100644
index 000000000..0453b371a
--- /dev/null
+++ b/kernel/windows/netuio/netuio.inf
@@ -0,0 +1,118 @@ 
+;
+;   BSD LICENSE
+;
+;   Copyright(c) 2010-2018 Intel Corporation. All rights reserved.
+;   All rights reserved.
+;
+;   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.
+;     * Neither the name of Intel Corporation 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
+;   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.
+;
+;
+; netuio.inf
+;
+
+[Version]
+Signature="$WINDOWS NT$"
+Class=Net
+ClassGuid={4d36e972-e325-11ce-bfc1-08002be10318}
+Provider=%ManufacturerName%
+CatalogFile=netuio.cat
+DriverVer=
+
+;*****************************************
+; Install Section
+;*****************************************
+
+[Manufacturer]
+%ManufacturerName%=Standard,NT$ARCH$
+
+[Standard.NT$ARCH$]
+%F1583.netuio.Description%=netuio_Device, PCI\VEN_8086&DEV_1583
+%F158A.netuio.Description%=netuio_Device, PCI\VEN_8086&DEV_158A   ; I40E_DEV_ID_25G_B
+%F158B.netuio.Description%=netuio_Device, PCI\VEN_8086&DEV_158B   ; I40E_DEV_ID_25G_SFP28
+%F37D0.netuio.Description%=netuio_Device, PCI\VEN_8086&DEV_37D0
+%F153B.netuio.Description%=netuio_Device, PCI\VEN_8086&DEV_153B
+
+[netuio_Device.NT]
+CopyFiles=Drivers_Dir
+
+[Drivers_Dir]
+netuio.sys
+
+;-------------- Service installation
+[netuio_Device.NT.Services]
+AddService = netuio,%SPSVCINST_ASSOCSERVICE%, netuio_Service_Inst
+
+; -------------- netuio driver install sections
+[netuio_Service_Inst]
+DisplayName    = %netuio.SVCDESC%
+ServiceType    = 1               ; SERVICE_KERNEL_DRIVER
+StartType      = 3               ; SERVICE_DEMAND_START
+ErrorControl   = 1               ; SERVICE_ERROR_NORMAL
+ServiceBinary  = %12%\netuio.sys
+
+;
+;--- netuio_Device Coinstaller installation ------
+;
+
+[DestinationDirs]
+DefaultDestDir = 12
+netuio_Device_CoInstaller_CopyFiles = 11
+
+[netuio_Device.NT.CoInstallers]
+AddReg=netuio_Device_CoInstaller_AddReg
+CopyFiles=netuio_Device_CoInstaller_CopyFiles
+
+[netuio_Device_CoInstaller_AddReg]
+HKR,,CoInstallers32,0x00010000, "WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll,WdfCoInstaller"
+
+[netuio_Device_CoInstaller_CopyFiles]
+WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll
+
+[SourceDisksNames]
+1 = %DiskName%,,,""
+
+[SourceDisksFiles]
+netuio.sys  = 1,,
+WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll=1 ; make sure the number matches with SourceDisksNames
+
+[netuio_Device.NT.Wdf]
+KmdfService =  netuio, netuio_wdfsect
+[netuio_wdfsect]
+KmdfLibraryVersion = $KMDFVERSION$
+
+[Strings]
+SPSVCINST_ASSOCSERVICE= 0x00000002
+ManufacturerName="Intel"
+ClassName = "Intel(R) DPDK netUIO Driver"
+DiskName = "DPDK netUIO Installation Disk"
+F1583.netuio.Description = "DPDK netUIO for Intel(R) Ethernet Converged Network Adapter XL710-Q2"
+F158A.netuio.Description = "DPDK netUIO for Intel(R) Ethernet Network Adapter XXV710 for 25GbE backplane"
+F158B.netuio.Description = "DPDK netUIO for Intel(R) Ethernet Network Adapter XXV710-DA1"
+F37D0.netuio.Description = "DPDK netUIO for Intel(R) Ethernet Connection X722"
+F153B.netuio.Description = "DPDK netUIO for Intel(R) Ethernet Connection I217-V"
+netuio.DeviceDesc = "netuio Device"
+netuio.SVCDESC = "netuio Service"
diff --git a/kernel/windows/netuio/netuio.rc b/kernel/windows/netuio/netuio.rc
new file mode 100644
index 0000000000000000000000000000000000000000..4b0b176e6284fcfa65662f7ea6b3b1b36fb85a6d
GIT binary patch
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diff --git a/kernel/windows/netuio/netuio_dev.c b/kernel/windows/netuio/netuio_dev.c
new file mode 100644
index 000000000..10ff5f903
--- /dev/null
+++ b/kernel/windows/netuio/netuio_dev.c
@@ -0,0 +1,306 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#include <stdio.h>
+#include "netuio_drv.h"
+
+#include <wdmguid.h>
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text (PAGE, netuio_create_device)
+#pragma alloc_text (PAGE, netuio_evt_device_context_cleanup)
+#pragma alloc_text (PAGE, netuio_map_hw_resources)
+#pragma alloc_text (PAGE, netuio_free_hw_resources)
+#endif
+
+/*
+Routine Description:
+    Worker routine called to create a device and its software resources.
+
+Return Value:
+    NTSTATUS
+ */
+NTSTATUS
+netuio_create_device(_Inout_ PWDFDEVICE_INIT DeviceInit)
+{
+    WDF_OBJECT_ATTRIBUTES deviceAttributes;
+    WDFDEVICE device;
+    NTSTATUS status;
+
+    PAGED_CODE();
+    WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&deviceAttributes, NETUIO_CONTEXT_DATA);
+
+    // Set the device context cleanup callback.
+    // This function will be called when the WDF Device Object associated to the current device is destroyed
+    deviceAttributes.EvtCleanupCallback = netuio_evt_device_context_cleanup;
+
+    status = WdfDeviceCreate(&DeviceInit, &deviceAttributes, &device);
+
+    if (NT_SUCCESS(status)) {
+        // Create a device interface so that applications can find and talk to us.
+        status = WdfDeviceCreateDeviceInterface(device, &GUID_DEVINTERFACE_netUIO, NULL);
+
+        if (NT_SUCCESS(status)) {
+            // Retrieve and store PCI information
+            status = get_pci_device_info(device);
+        }
+
+        if (NT_SUCCESS(status)) {
+            // Create a symbolic link name for user-space access
+            status = create_device_specific_symbolic_link(device);
+        }
+
+        if (NT_SUCCESS(status)) {
+            // Initialize the I/O Package and any Queues
+            status = netuio_queue_initialize(device);
+        }
+
+        if (NT_SUCCESS(status)) {
+            // Allocate physically contiguous memory for user process use. We'll map it later
+            status = allocate_usermemory_segment(device);
+        }
+    }
+
+    return status;
+}
+
+/*
+Routine Description:
+    Free all the resources allocated in AdfEvtDeviceAdd.
+
+Return Value:
+    None
+ */
+VOID
+netuio_evt_device_context_cleanup(_In_ WDFOBJECT Device)
+{
+    free_usermemory_segment(Device);
+    return;
+}
+
+NTSTATUS
+netuio_map_hw_resources(_In_ WDFDEVICE Device, _In_ WDFCMRESLIST Resources, _In_ WDFCMRESLIST ResourcesTranslated)
+{
+    UNREFERENCED_PARAMETER(Resources);
+
+    NTSTATUS status = STATUS_SUCCESS;
+
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(Device);
+
+    if (!netuio_contextdata)
+        return STATUS_UNSUCCESSFUL;
+
+    PCM_PARTIAL_RESOURCE_DESCRIPTOR descriptor;
+    UINT8 bar_index = 0;
+
+    // Collect device BAR resources from the ResourcesTranslated object
+    for (ULONG idx = 0; idx < WdfCmResourceListGetCount(ResourcesTranslated); idx++) {
+        descriptor = WdfCmResourceListGetDescriptor(ResourcesTranslated, idx);
+        if (!descriptor) {
+            status = STATUS_DEVICE_CONFIGURATION_ERROR;
+            goto end;
+        }
+
+        switch (descriptor->Type) {
+        case CmResourceTypeMemory:
+            // Retrieve and map the BARs
+            netuio_contextdata->bar[bar_index].base_addr.QuadPart = descriptor->u.Memory.Start.QuadPart;
+            netuio_contextdata->bar[bar_index].size = descriptor->u.Memory.Length;
+            netuio_contextdata->bar[bar_index].virt_addr =
+                MmMapIoSpace(descriptor->u.Memory.Start, descriptor->u.Memory.Length, MmNonCached);
+
+            if (netuio_contextdata->bar[bar_index].virt_addr == NULL) {
+                status = STATUS_UNSUCCESSFUL;
+                goto end;
+            }
+
+            bar_index++;
+            break;
+
+            // Don't handle any other resource type
+            // This could be device-private type added by the PCI bus driver.
+        case CmResourceTypeInterrupt:
+        default:
+            break;
+        }
+    }
+
+    // Allocate an MDL for the device BAR, so that we can map it to the user's process context later...
+    if (status == STATUS_SUCCESS) {
+        // Bar 0 is typically the HW BAR
+        if (netuio_contextdata->bar[0].virt_addr) {
+            netuio_contextdata->dpdk_hw.mdl = IoAllocateMdl(netuio_contextdata->bar[0].virt_addr, (ULONG)netuio_contextdata->bar[0].size, FALSE, FALSE, NULL);
+            if (!netuio_contextdata->dpdk_hw.mdl) {
+                status = STATUS_INSUFFICIENT_RESOURCES;
+                goto end;
+            }
+            netuio_contextdata->dpdk_hw.mem.size = netuio_contextdata->bar[0].size;
+        }
+    }
+
+end:
+    return status;
+}
+
+VOID
+netuio_free_hw_resources(_In_ WDFDEVICE Device)
+{
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(Device);
+
+    if (netuio_contextdata) {
+        // Free the allocated MDL
+        if (netuio_contextdata->dpdk_hw.mdl)
+            IoFreeMdl(netuio_contextdata->dpdk_hw.mdl);
+
+        // Unmap all the BAR regions previously mapped
+        for (UINT8 bar_index = 0; bar_index < PCI_MAX_BAR; bar_index++) {
+            if (netuio_contextdata->bar[bar_index].virt_addr)
+                MmUnmapIoSpace(netuio_contextdata->bar[bar_index].virt_addr, netuio_contextdata->bar[bar_index].size);
+        }
+    }
+}
+
+
+static NTSTATUS
+get_pci_device_info(_In_ WDFOBJECT device)
+{
+    NTSTATUS status = STATUS_UNSUCCESSFUL;
+
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(device);
+
+    if (!netuio_contextdata)
+        return status;
+
+    netuio_contextdata->wdf_device = device;  // Store for later use
+
+    // Obtain the BUS_INTERFACE_STANDARD interface from the Bus Driver
+    status = WdfFdoQueryForInterface(device, &GUID_BUS_INTERFACE_STANDARD,
+                                    (PINTERFACE)&netuio_contextdata->bus_interface,
+                                    sizeof(BUS_INTERFACE_STANDARD), 1, NULL);
+    if (!NT_SUCCESS(status))
+        return status;
+
+    // Retrieve the B:D:F details of our device
+    PDEVICE_OBJECT pdo = NULL;
+    pdo = WdfDeviceWdmGetPhysicalDevice(device);
+    if (pdo) {
+        ULONG prop = 0, length = 0;
+        status = IoGetDeviceProperty(pdo, DevicePropertyBusNumber, sizeof(ULONG), (PVOID)&netuio_contextdata->addr.bus_num, &length);
+        status = IoGetDeviceProperty(pdo, DevicePropertyAddress, sizeof(ULONG), (PVOID)&prop, &length);
+
+        if (NT_SUCCESS(status)) {
+            netuio_contextdata->addr.func_num = prop & 0x0000FFFF;
+            netuio_contextdata->addr.dev_num = ((prop >> 16) & 0x0000FFFF);
+        }
+        // Also, retrieve the NUMA node of the device
+        USHORT numaNode;
+        status = IoGetDeviceNumaNode(pdo, &numaNode);
+        if (NT_SUCCESS(status)) {
+            netuio_contextdata->dev_numa_node = numaNode;
+        }
+    }
+
+    return status;
+}
+
+static NTSTATUS
+create_device_specific_symbolic_link(_In_ WDFOBJECT device)
+{
+    NTSTATUS status = STATUS_UNSUCCESSFUL;
+    UNICODE_STRING netuio_symbolic_link;
+
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(device);
+
+    if (!netuio_contextdata)
+        return status;
+
+    // Build symbolic link name as <netuio_symbolic_link>_BDF  (bus/device/func)
+    CHAR  symbolic_link[64] = { 0 };
+    sprintf_s(symbolic_link, sizeof(symbolic_link), "%s_%04d%02d%02d",
+                            NETUIO_DEVICE_SYMBOLIC_LINK_ANSI, netuio_contextdata->addr.bus_num,
+                            netuio_contextdata->addr.dev_num, netuio_contextdata->addr.func_num);
+
+    ANSI_STRING ansi_symbolic_link;
+    RtlInitAnsiString(&ansi_symbolic_link, symbolic_link);
+
+    status = RtlAnsiStringToUnicodeString(&netuio_symbolic_link, &ansi_symbolic_link, TRUE);
+    if (!NT_SUCCESS(status))
+        return status;
+
+    status = WdfDeviceCreateSymbolicLink(device, &netuio_symbolic_link);
+
+    RtlFreeUnicodeString(&netuio_symbolic_link);
+
+    return status;
+}
+
+static NTSTATUS
+allocate_usermemory_segment(_In_ WDFOBJECT device)
+{
+    NTSTATUS status = STATUS_SUCCESS;
+
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(device);
+
+    if (!netuio_contextdata)
+        return STATUS_UNSUCCESSFUL;
+
+    PHYSICAL_ADDRESS lowest_acceptable_address;
+    PHYSICAL_ADDRESS highest_acceptable_address;
+    PHYSICAL_ADDRESS boundary_address_multiple;
+
+    lowest_acceptable_address.QuadPart = 0x0000000000800000;
+    highest_acceptable_address.QuadPart = 0xFFFFFFFFFFFFFFFF;
+    boundary_address_multiple.QuadPart = 0;
+
+    // Allocate physically contiguous memory for user process use
+    netuio_contextdata->dpdk_seg.mem.virt_addr =
+                MmAllocateContiguousMemorySpecifyCache(USER_MEMORY_SEGMENT_SIZE,
+                                                       lowest_acceptable_address,
+                                                       highest_acceptable_address,
+                                                       boundary_address_multiple,
+                                                       MmCached);
+
+    if (!netuio_contextdata->dpdk_seg.mem.virt_addr) {
+        status = STATUS_NO_MEMORY;
+        goto end;
+    }
+
+    netuio_contextdata->dpdk_seg.mem.size = USER_MEMORY_SEGMENT_SIZE;
+
+    // Allocate an MDL for this memory region - so that we can map it into the user's process context later
+    netuio_contextdata->dpdk_seg.mdl = IoAllocateMdl((PVOID)netuio_contextdata->dpdk_seg.mem.virt_addr, USER_MEMORY_SEGMENT_SIZE, FALSE, FALSE, NULL);
+    if (netuio_contextdata->dpdk_seg.mdl == NULL) {
+        status = STATUS_NO_MEMORY;
+        goto end;
+    }
+
+    // Store the region's physical address
+    netuio_contextdata->dpdk_seg.mem.phys_addr = MmGetPhysicalAddress(netuio_contextdata->dpdk_seg.mem.virt_addr);
+
+end:
+    return status;
+}
+
+static VOID
+free_usermemory_segment(_In_ WDFOBJECT device)
+{
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(device);
+
+    if (netuio_contextdata) {
+        if (netuio_contextdata->dpdk_seg.mdl)
+            IoFreeMdl(netuio_contextdata->dpdk_seg.mdl);
+
+        if (netuio_contextdata->dpdk_seg.mem.virt_addr)
+            MmFreeContiguousMemory(netuio_contextdata->dpdk_seg.mem.virt_addr);
+    }
+}
diff --git a/kernel/windows/netuio/netuio_dev.h b/kernel/windows/netuio/netuio_dev.h
new file mode 100644
index 000000000..a19a4fb42
--- /dev/null
+++ b/kernel/windows/netuio/netuio_dev.h
@@ -0,0 +1,65 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+#ifndef NETUIO_DEV_H
+#define NETUIO_DEV_H
+
+EXTERN_C_START
+
+#include "netuio_interface.h"
+
+// Constants
+#define PCI_MAX_BAR              3
+#define USER_MEMORY_SEGMENT_SIZE (256ULL * 1024ULL * 1024ULL)   // 256MB
+
+struct pci_bar {
+    PHYSICAL_ADDRESS base_addr;
+    PVOID            virt_addr;
+    UINT64           size;
+};
+
+struct mem_map_region {
+    PMDL               mdl;    // MDL describing the memory region
+    struct mem_region  mem;    // Memory region details
+};
+
+// The device context performs the same job as a WDM device extension in the driver frameworks
+typedef struct _NETUIO_CONTEXT_DATA
+{
+    WDFDEVICE               wdf_device;        // WDF device handle to the FDO
+    BUS_INTERFACE_STANDARD  bus_interface;     // Bus interface for config space access
+    struct pci_bar          bar[PCI_MAX_BAR];  // device BARs
+    struct dev_addr         addr;              // B:D:F details of device
+    USHORT                  dev_numa_node;     // The NUMA node of the device
+    struct mem_map_region   dpdk_hw;           // mapped region for the device's register space
+    struct mem_map_region   dpdk_seg;          // mapped region allocated for DPDK process use
+} NETUIO_CONTEXT_DATA, *PNETUIO_CONTEXT_DATA;
+
+
+// This macro will generate an inline function called DeviceGetContext
+// which will be used to get a pointer to the device context memory in a type safe manner.
+WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(NETUIO_CONTEXT_DATA, netuio_get_context_data)
+
+
+// Function to initialize the device and its callbacks
+NTSTATUS netuio_create_device(_Inout_ PWDFDEVICE_INIT DeviceInit);
+NTSTATUS netuio_map_hw_resources(_In_ WDFDEVICE Device, _In_ WDFCMRESLIST Resources, _In_ WDFCMRESLIST ResourcesTranslated);
+VOID netuio_free_hw_resources(_In_ WDFDEVICE Device);
+
+
+// Function called for cleanup when device object is being destroyed
+VOID netuio_evt_device_context_cleanup(_In_ WDFOBJECT Device);
+
+// Local function protoyypes
+static NTSTATUS get_pci_device_info(_In_ WDFOBJECT device);
+static NTSTATUS create_device_specific_symbolic_link(_In_ WDFOBJECT device);
+static NTSTATUS allocate_usermemory_segment(_In_ WDFOBJECT device);
+static VOID free_usermemory_segment(_In_ WDFOBJECT device);
+
+
+EXTERN_C_END
+
+#endif // NETUIO_DEV_H
diff --git a/kernel/windows/netuio/netuio_drv.c b/kernel/windows/netuio/netuio_drv.c
new file mode 100644
index 000000000..d45a9ec4f
--- /dev/null
+++ b/kernel/windows/netuio/netuio_drv.c
@@ -0,0 +1,142 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#include "netuio_drv.h"
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text (INIT, DriverEntry)
+#pragma alloc_text (PAGE, netuio_evt_device_add)
+#pragma alloc_text (PAGE, netuio_evt_driver_context_cleanup)
+#endif
+
+
+/*
+Routine Description:
+    DriverEntry initializes the driver and is the first routine called by the
+    system after the driver is loaded. DriverEntry specifies the other entry
+    points in the function driver, such as EvtDevice and DriverUnload.
+
+Return Value:
+    STATUS_SUCCESS if successful,
+    STATUS_UNSUCCESSFUL otherwise.
+ */
+NTSTATUS
+DriverEntry(_In_ PDRIVER_OBJECT DriverObject, _In_ PUNICODE_STRING RegistryPath)
+{
+    WDF_DRIVER_CONFIG config;
+    NTSTATUS status;
+    WDF_OBJECT_ATTRIBUTES attributes;
+
+    // Register a cleanup callback so that we can call WPP_CLEANUP when
+    // the framework driver object is deleted during driver unload.
+    WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
+    attributes.EvtCleanupCallback = netuio_evt_driver_context_cleanup;
+
+    WDF_DRIVER_CONFIG_INIT(&config, netuio_evt_device_add);
+
+    status = WdfDriverCreate(DriverObject, RegistryPath,
+                             &attributes, &config,
+                             WDF_NO_HANDLE);
+
+    if (!NT_SUCCESS(status)) {
+        return status;
+    }
+
+    return status;
+}
+
+
+/*
+Routine Description:
+    netuio_evt_device_add is called by the framework in response to AddDevice
+    call from the PnP manager. We create and initialize a device object to
+    represent a new instance of the device.
+
+Return Value:
+    NTSTATUS
+ */
+NTSTATUS
+netuio_evt_device_add(_In_ WDFDRIVER Driver, _Inout_ PWDFDEVICE_INIT DeviceInit)
+{
+    NTSTATUS status;
+    WDF_PNPPOWER_EVENT_CALLBACKS    pnpPowerCallbacks;
+
+    UNREFERENCED_PARAMETER(Driver);
+
+    PAGED_CODE();
+
+    // Zero out the PnpPowerCallbacks structure
+    WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
+
+    // Register Plug-aNd-Play and power management callbacks
+    pnpPowerCallbacks.EvtDevicePrepareHardware = netuio_evt_prepare_hw;
+    pnpPowerCallbacks.EvtDeviceReleaseHardware = netuio_evt_release_hw;
+
+    WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &pnpPowerCallbacks);
+
+    status = netuio_create_device(DeviceInit);
+
+    return status;
+}
+
+/*
+Routine Description :
+    Maps HW resources and retrieves the PCI BAR address(es) of the device
+
+Return Value :
+    STATUS_SUCCESS is successful.
+    STATUS_<ERROR> otherwise
+-*/
+NTSTATUS
+netuio_evt_prepare_hw(_In_ WDFDEVICE Device, _In_ WDFCMRESLIST Resources, _In_ WDFCMRESLIST ResourcesTranslated)
+{
+    NTSTATUS status;
+
+    status = netuio_map_hw_resources(Device, Resources, ResourcesTranslated);
+
+    if (NT_SUCCESS(status)) {
+        PNETUIO_CONTEXT_DATA  netuio_contextdata;
+        netuio_contextdata = netuio_get_context_data(Device);
+        if (netuio_contextdata) {
+            DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_NETUIO_INFO_LEVEL, "netUIO Driver loaded...on device (B:D:F) %04d:%02d:%02d\n",
+                                             netuio_contextdata->addr.bus_num, netuio_contextdata->addr.dev_num, netuio_contextdata->addr.func_num);
+        }
+    }
+    return status;
+}
+
+/*
+Routine Description :
+    Releases the resource mapped by netuio_evt_prepare_hw
+
+Return Value :
+    STATUS_SUCCESS always.
+-*/
+NTSTATUS
+netuio_evt_release_hw(_In_ WDFDEVICE Device, _In_ WDFCMRESLIST ResourcesTranslated)
+{
+    UNREFERENCED_PARAMETER(ResourcesTranslated);
+
+    netuio_free_hw_resources(Device);
+
+    return STATUS_SUCCESS;
+}
+
+/*
+Routine Description:
+    Free all the resources allocated in DriverEntry.
+
+Return Value:
+    None
+-*/
+VOID
+netuio_evt_driver_context_cleanup(_In_ WDFOBJECT DriverObject)
+{
+    UNREFERENCED_PARAMETER(DriverObject);
+    DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_NETUIO_INFO_LEVEL, "netUIO Driver unloaded.\n");
+    PAGED_CODE();
+}
diff --git a/kernel/windows/netuio/netuio_drv.h b/kernel/windows/netuio/netuio_drv.h
new file mode 100644
index 000000000..39d7f301e
--- /dev/null
+++ b/kernel/windows/netuio/netuio_drv.h
@@ -0,0 +1,33 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#ifndef NETUIO_DRV_H
+#define NETUIO_DRV_H
+
+#define INITGUID
+
+#include <ntddk.h>
+#include <wdf.h>
+
+#include "netuio_dev.h"
+#include "netuio_queue.h"
+
+EXTERN_C_START
+
+// Print output constants
+#define DPFLTR_NETUIO_INFO_LEVEL   35
+
+// WDFDRIVER Events
+DRIVER_INITIALIZE DriverEntry;
+EVT_WDF_DRIVER_DEVICE_ADD       netuio_evt_device_add;
+EVT_WDF_OBJECT_CONTEXT_CLEANUP  netuio_evt_driver_context_cleanup;
+EVT_WDF_DEVICE_PREPARE_HARDWARE netuio_evt_prepare_hw;
+EVT_WDF_DEVICE_RELEASE_HARDWARE netuio_evt_release_hw;
+
+EXTERN_C_END
+
+#endif // NETUIO_DRV_H
diff --git a/kernel/windows/netuio/netuio_interface.h b/kernel/windows/netuio/netuio_interface.h
new file mode 100644
index 000000000..b86bf5d3f
--- /dev/null
+++ b/kernel/windows/netuio/netuio_interface.h
@@ -0,0 +1,69 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#ifndef NETUIO_INTERFACE_H
+#define NETUIO_INTERFACE_H
+
+// All structures in this file are packed on an 8B boundary. 
+#pragma pack(push)
+#pragma pack(8)
+
+// Define an Interface Guid so that any app can find the device and talk to it.
+DEFINE_GUID (GUID_DEVINTERFACE_netUIO, 0x08336f60,0x0679,0x4c6c,0x85,0xd2,0xae,0x7c,0xed,0x65,0xff,0xf7); // {08336f60-0679-4c6c-85d2-ae7ced65fff7}
+
+// Device name definitions
+#define NETUIO_DEVICE_SYMBOLIC_LINK_ANSI    "\\DosDevices\\netuio"
+
+// netUIO driver symbolic name (prefix)
+#define NETUIO_DRIVER_NAME  _T("netuio")
+
+// IOCTL code definitions
+#define IOCTL_NETUIO_GET_HW_DATA      CTL_CODE(FILE_DEVICE_NETWORK, 51, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+#define IOCTL_NETUIO_PCI_CONFIG_IO    CTL_CODE(FILE_DEVICE_NETWORK, 52, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+
+struct mem_region {
+    UINT64           size;       // memory region size
+    PHYSICAL_ADDRESS phys_addr;  // physical address of the memory region
+    PVOID            virt_addr;  // virtual address of the memory region
+    PVOID            user_mapped_virt_addr;  // virtual address of the region mapped into user process context
+};
+
+struct dev_addr {
+    ULONG   bus_num;
+    USHORT  dev_num;
+    USHORT  func_num;
+};
+
+enum pci_io {
+    PCI_IO_READ = 0,
+    PCI_IO_WRITE = 1
+};
+
+struct dpdk_private_info
+{
+    struct mem_region   hw;
+    struct mem_region   ms;
+    struct dev_addr     dev_addr;
+    struct mem_region	bar1;
+//  struct mem_region	bar2;
+    UINT16              dev_id;
+    UINT16              sub_dev_id;
+    USHORT              dev_numa_node;
+    USHORT              reserved;
+};
+
+struct dpdk_pci_config_io
+{
+    struct dev_addr     dev_addr;
+    PVOID               buf;
+    UINT32              offset;
+    enum pci_io         op;
+};
+
+#pragma pack(pop)
+
+#endif // NETUIO_INTERFACE_H
diff --git a/kernel/windows/netuio/netuio_queue.c b/kernel/windows/netuio/netuio_queue.c
new file mode 100644
index 000000000..312d4b682
--- /dev/null
+++ b/kernel/windows/netuio/netuio_queue.c
@@ -0,0 +1,271 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#include "netuio_drv.h"
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text (PAGE, netuio_queue_initialize)
+#endif
+
+VOID netuio_read_PCI_config(PNETUIO_CONTEXT_DATA netuio_contextdata, ULONG offset, PVOID buffer)
+{
+    netuio_contextdata->bus_interface.GetBusData(netuio_contextdata->bus_interface.Context,
+                                                 PCI_WHICHSPACE_CONFIG,
+                                                 buffer,
+                                                 offset,
+                                                 sizeof(UINT32));
+}
+
+VOID netuio_write_PCI_config(PNETUIO_CONTEXT_DATA netuio_contextdata, ULONG offset, PVOID buffer)
+{
+    netuio_contextdata->bus_interface.SetBusData(netuio_contextdata->bus_interface.Context,
+                                                 PCI_WHICHSPACE_CONFIG,
+                                                 buffer,
+                                                 offset,
+                                                 sizeof(UINT32));
+}
+
+static NTSTATUS
+netuio_handle_get_hw_data_request(_In_ WDFREQUEST Request, _In_ PNETUIO_CONTEXT_DATA netuio_contextdata,
+                                   _In_ PVOID outputBuf, _In_ size_t outputBufSize)
+{
+    NTSTATUS status = STATUS_SUCCESS;
+
+    WDF_REQUEST_PARAMETERS params;
+    WDF_REQUEST_PARAMETERS_INIT(&params);
+    WdfRequestGetParameters(Request, &params);
+
+    if (!netuio_contextdata || (outputBufSize != sizeof(struct dpdk_private_info))) {
+        status = STATUS_INVALID_PARAMETER;
+        goto end;
+    }
+
+    struct dpdk_private_info *dpdk_pvt_info = (struct dpdk_private_info *)outputBuf;
+    RtlZeroMemory(dpdk_pvt_info, outputBufSize);
+
+    dpdk_pvt_info->hw.phys_addr.QuadPart = netuio_contextdata->bar[0].base_addr.QuadPart;
+    dpdk_pvt_info->hw.user_mapped_virt_addr = netuio_contextdata->dpdk_hw.mem.user_mapped_virt_addr;
+    dpdk_pvt_info->hw.size = netuio_contextdata->bar[0].size;
+
+    dpdk_pvt_info->ms.phys_addr.QuadPart = netuio_contextdata->dpdk_seg.mem.phys_addr.QuadPart;
+    dpdk_pvt_info->ms.user_mapped_virt_addr = netuio_contextdata->dpdk_seg.mem.user_mapped_virt_addr;
+    dpdk_pvt_info->ms.size = netuio_contextdata->dpdk_seg.mem.size;
+end:
+    return status;
+}
+
+/*
+Routine Description:
+    The I/O dispatch callbacks for the frameworks device object are configured here.
+    A single default I/O Queue is configured for parallel request processing, and a
+    driver context memory allocation is created to hold our structure QUEUE_CONTEXT.
+
+Return Value:
+    None
+ */
+NTSTATUS
+netuio_queue_initialize(_In_ WDFDEVICE Device)
+{
+    WDFQUEUE queue;
+    NTSTATUS status;
+    WDF_IO_QUEUE_CONFIG    queueConfig;
+
+    PAGED_CODE();
+
+    // Configure a default queue so that requests that are not
+    // configure-fowarded using WdfDeviceConfigureRequestDispatching to goto
+    // other queues get dispatched here.
+    WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&queueConfig, WdfIoQueueDispatchParallel);
+
+    queueConfig.EvtIoDeviceControl = netuio_evt_IO_device_control;
+    queueConfig.EvtIoStop = netuio_evt_IO_stop;
+
+    status = WdfIoQueueCreate(Device,
+                              &queueConfig,
+                              WDF_NO_OBJECT_ATTRIBUTES,
+                              &queue);
+
+    if( !NT_SUCCESS(status) ) {
+        return status;
+    }
+
+    return status;
+}
+
+/*
+Routine Description:
+    This event is invoked when the framework receives IRP_MJ_DEVICE_CONTROL request.
+
+Return Value:
+    None
+ */
+VOID
+netuio_evt_IO_device_control(_In_ WDFQUEUE Queue, _In_ WDFREQUEST Request,
+                              _In_ size_t OutputBufferLength, _In_ size_t InputBufferLength,
+                              _In_ ULONG IoControlCode)
+{
+    UNREFERENCED_PARAMETER(OutputBufferLength);
+    UNREFERENCED_PARAMETER(InputBufferLength);
+
+    NTSTATUS status = STATUS_SUCCESS;
+    PVOID    input_buf = NULL, output_buf = NULL;
+    size_t   input_buf_size, output_buf_size;
+    size_t  bytes_returned = 0;
+
+    WDFDEVICE device = WdfIoQueueGetDevice(Queue);
+
+    PNETUIO_CONTEXT_DATA  netuio_contextdata;
+    netuio_contextdata = netuio_get_context_data(device);
+
+    switch (IoControlCode) {
+    case IOCTL_NETUIO_GET_HW_DATA:
+        // First retrieve the input buffer and see if it matches our device
+        status = WdfRequestRetrieveInputBuffer(Request, sizeof(struct dpdk_private_info), &input_buf, &input_buf_size);
+        if (!NT_SUCCESS(status)) {
+            status = STATUS_INVALID_BUFFER_SIZE;
+            break;
+        }
+
+        struct dpdk_private_info *dpdk_pvt_info = (struct dpdk_private_info *)input_buf;
+        // Ensure that the B:D:F match - otherwise, fail the IOCTL
+        if ((netuio_contextdata->addr.bus_num != dpdk_pvt_info->dev_addr.bus_num) ||
+            (netuio_contextdata->addr.dev_num != dpdk_pvt_info->dev_addr.dev_num) ||
+            (netuio_contextdata->addr.func_num != dpdk_pvt_info->dev_addr.func_num)) {
+            status = STATUS_NOT_SAME_DEVICE;
+            break;
+        }
+
+        // Map the previously allocated/defined memory regions to the user's process context
+        MmBuildMdlForNonPagedPool(netuio_contextdata->dpdk_hw.mdl);
+        netuio_contextdata->dpdk_hw.mem.user_mapped_virt_addr =
+                            MmMapLockedPagesSpecifyCache(netuio_contextdata->dpdk_hw.mdl, UserMode, MmCached,
+        NULL, FALSE, (NormalPagePriority | MdlMappingNoExecute));
+
+        MmBuildMdlForNonPagedPool(netuio_contextdata->dpdk_seg.mdl);
+        netuio_contextdata->dpdk_seg.mem.user_mapped_virt_addr =
+                            MmMapLockedPagesSpecifyCache(netuio_contextdata->dpdk_seg.mdl, UserMode, MmCached,
+        NULL, FALSE, (NormalPagePriority | MdlMappingNoExecute));
+
+        if (!netuio_contextdata->dpdk_hw.mem.user_mapped_virt_addr && !netuio_contextdata->dpdk_seg.mem.user_mapped_virt_addr) {
+            status = STATUS_INSUFFICIENT_RESOURCES;
+            break;
+        }
+
+        // Zero out the physically contiguous block
+        RtlZeroMemory(netuio_contextdata->dpdk_seg.mem.virt_addr, netuio_contextdata->dpdk_seg.mem.size);
+
+        // Return relevant data to the caller
+        status = WdfRequestRetrieveOutputBuffer(Request, sizeof(struct dpdk_private_info), &output_buf, &output_buf_size);
+        if (!NT_SUCCESS(status)) {
+            status = STATUS_INVALID_BUFFER_SIZE;
+            break;
+        }
+        ASSERT(output_buf_size == OutputBufferLength);
+        status = netuio_handle_get_hw_data_request(Request, netuio_contextdata, output_buf, output_buf_size);
+        if (NT_SUCCESS(status))
+            bytes_returned = output_buf_size;
+
+        break;
+
+    case IOCTL_NETUIO_PCI_CONFIG_IO:
+        // First retrieve the input buffer and see if it matches our device
+        status = WdfRequestRetrieveInputBuffer(Request, sizeof(struct dpdk_pci_config_io), &input_buf, &input_buf_size);
+        if (!NT_SUCCESS(status)) {
+            status = STATUS_INVALID_BUFFER_SIZE;
+            break;
+        }
+
+        struct dpdk_pci_config_io *dpdk_pci_io_input = (struct dpdk_pci_config_io *)input_buf;
+        // Ensure that the B:D:F match - otherwise, fail the IOCTL
+        if ((netuio_contextdata->addr.bus_num != dpdk_pci_io_input->dev_addr.bus_num) ||
+            (netuio_contextdata->addr.dev_num != dpdk_pci_io_input->dev_addr.dev_num) ||
+            (netuio_contextdata->addr.func_num != dpdk_pci_io_input->dev_addr.func_num)) {
+            status = STATUS_NOT_SAME_DEVICE;
+            break;
+        }
+        // Retrieve output buffer
+        status = WdfRequestRetrieveOutputBuffer(Request, sizeof(UINT32), &output_buf, &output_buf_size);
+        if (!NT_SUCCESS(status)) {
+            status = STATUS_INVALID_BUFFER_SIZE;
+            break;
+        }
+        ASSERT(output_buf_size == OutputBufferLength);
+
+        if (dpdk_pci_io_input->op == PCI_IO_READ) {
+            netuio_read_PCI_config(netuio_contextdata, dpdk_pci_io_input->offset, output_buf);
+            bytes_returned = output_buf_size;
+        }
+        else {
+            netuio_write_PCI_config(netuio_contextdata, dpdk_pci_io_input->offset, dpdk_pci_io_input->buf);
+            bytes_returned = 0;
+        }
+
+        break;
+
+    default:
+        break;
+    }
+
+    WdfRequestCompleteWithInformation(Request, status, bytes_returned);
+
+    return;
+}
+
+/*
+Routine Description:
+    This event is invoked for a power-managed queue before the device leaves the working state (D0).
+
+Return Value:
+    None
+ */
+VOID
+netuio_evt_IO_stop(_In_ WDFQUEUE Queue, _In_ WDFREQUEST Request,_In_ ULONG ActionFlags)
+{
+    //
+    // In most cases, the EvtIoStop callback function completes, cancels, or postpones
+    // further processing of the I/O request.
+    //
+    // Typically, the driver uses the following rules:
+    //
+    // - If the driver owns the I/O request, it calls WdfRequestUnmarkCancelable
+    //   (if the request is cancelable) and either calls WdfRequestStopAcknowledge
+    //   with a Requeue value of TRUE, or it calls WdfRequestComplete with a
+    //   completion status value of STATUS_SUCCESS or STATUS_CANCELLED.
+    //
+    //   Before it can call these methods safely, the driver must make sure that
+    //   its implementation of EvtIoStop has exclusive access to the request.
+    //
+    //   In order to do that, the driver must synchronize access to the request
+    //   to prevent other threads from manipulating the request concurrently.
+    //   The synchronization method you choose will depend on your driver's design.
+    //
+    //   For example, if the request is held in a shared context, the EvtIoStop callback
+    //   might acquire an internal driver lock, take the request from the shared context,
+    //   and then release the lock. At this point, the EvtIoStop callback owns the request
+    //   and can safely complete or requeue the request.
+    //
+    // - If the driver has forwarded the I/O request to an I/O target, it either calls
+    //   WdfRequestCancelSentRequest to attempt to cancel the request, or it postpones
+    //   further processing of the request and calls WdfRequestStopAcknowledge with
+    //   a Requeue value of FALSE.
+    //
+    // A driver might choose to take no action in EvtIoStop for requests that are
+    // guaranteed to complete in a small amount of time.
+    //
+    // In this case, the framework waits until the specified request is complete
+    // before moving the device (or system) to a lower power state or removing the device.
+    // Potentially, this inaction can prevent a system from entering its hibernation state
+    // or another low system power state. In extreme cases, it can cause the system
+    // to crash with bugcheck code 9F.
+    //
+    UNREFERENCED_PARAMETER(Queue);
+    UNREFERENCED_PARAMETER(Request);
+    UNREFERENCED_PARAMETER(ActionFlags);
+
+    return;
+}
+
diff --git a/kernel/windows/netuio/netuio_queue.h b/kernel/windows/netuio/netuio_queue.h
new file mode 100644
index 000000000..6a0306516
--- /dev/null
+++ b/kernel/windows/netuio/netuio_queue.h
@@ -0,0 +1,30 @@ 
+/*-
+*
+*   Copyright(c) 2017 Intel Corporation. All rights reserved.
+*
+*/
+
+
+#ifndef NETUIO_QUEUE_H
+#define NETUIO_QUEUE_H
+
+EXTERN_C_START
+
+// This is the context that can be placed per queue and would contain per queue information.
+typedef struct _QUEUE_CONTEXT {
+    ULONG PrivateDeviceData;  // just a placeholder
+} QUEUE_CONTEXT, *PQUEUE_CONTEXT;
+
+WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(QUEUE_CONTEXT, QueueGetContext)
+
+
+NTSTATUS
+netuio_queue_initialize(_In_ WDFDEVICE hDevice);
+
+// Events from the IoQueue object
+EVT_WDF_IO_QUEUE_IO_DEVICE_CONTROL netuio_evt_IO_device_control;
+EVT_WDF_IO_QUEUE_IO_STOP netuio_evt_IO_stop;
+
+EXTERN_C_END
+
+#endif // NETUIO_QUEUE_H
diff --git a/kernel/windows/netuio/resource.h b/kernel/windows/netuio/resource.h
new file mode 100644
index 000000000..9789ffdf3
--- /dev/null
+++ b/kernel/windows/netuio/resource.h
@@ -0,0 +1,14 @@ 
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by netuio.rc
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        101
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif