NTSTATUS
DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
ULONG Status;
HW_INITIALIZATION_DATA HwInitializationData;
PVOID driver_extension;
PUCHAR ptr;
FUNCTION_ENTER();
KdPrint((__DRIVER_NAME " IRQL = %d\n", KeGetCurrentIrql()));
IoAllocateDriverObjectExtension(DriverObject, UlongToPtr(XEN_INIT_DRIVER_EXTENSION_MAGIC), PAGE_SIZE, &driver_extension);
ptr = driver_extension;
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_RING, "ring-ref", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_EVENT_CHANNEL_IRQ, "event-channel", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_GRANT_ENTRIES, UlongToPtr((ULONG)'SCSI'), UlongToPtr(144), NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_PRE_CONNECT, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateInitialised);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateConnected);
__ADD_XEN_INIT_UCHAR(&ptr, 20);
__ADD_XEN_INIT_UCHAR(&ptr, 0);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_POST_CONNECT, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateConnected);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateConnected);
__ADD_XEN_INIT_UCHAR(&ptr, 20);
__ADD_XEN_INIT_UCHAR(&ptr, 0);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_SHUTDOWN, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosing);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosing);
__ADD_XEN_INIT_UCHAR(&ptr, 50);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosed);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosed);
__ADD_XEN_INIT_UCHAR(&ptr, 50);
//__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateInitWait); //ialising);
//__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateInitWait);
//__ADD_XEN_INIT_UCHAR(&ptr, 50);
__ADD_XEN_INIT_UCHAR(&ptr, 0);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_END, NULL, NULL, NULL);
/* RegistryPath == NULL when we are invoked as a crash dump driver */
if (!RegistryPath)
{
dump_mode = TRUE;
}
RtlZeroMemory(&HwInitializationData, sizeof(HW_INITIALIZATION_DATA));
HwInitializationData.HwInitializationDataSize = sizeof(HW_INITIALIZATION_DATA);
HwInitializationData.AdapterInterfaceType = PNPBus;
HwInitializationData.DeviceExtensionSize = sizeof(XENSCSI_DEVICE_DATA);
HwInitializationData.SpecificLuExtensionSize = sizeof(XENSCSI_LU_DATA);
HwInitializationData.SrbExtensionSize = 0;
HwInitializationData.NumberOfAccessRanges = 1;
HwInitializationData.MapBuffers = TRUE;
HwInitializationData.NeedPhysicalAddresses = FALSE;
HwInitializationData.TaggedQueuing = TRUE;
HwInitializationData.AutoRequestSense = TRUE;
HwInitializationData.MultipleRequestPerLu = TRUE;
HwInitializationData.HwInitialize = XenScsi_HwScsiInitialize;
HwInitializationData.HwStartIo = XenScsi_HwScsiStartIo;
HwInitializationData.HwInterrupt = XenScsi_HwScsiInterrupt;
HwInitializationData.HwFindAdapter = XenScsi_HwScsiFindAdapter;
HwInitializationData.HwResetBus = XenScsi_HwScsiResetBus;
HwInitializationData.HwAdapterControl = XenScsi_HwScsiAdapterControl;
Status = ScsiPortInitialize(DriverObject, RegistryPath, &HwInitializationData, NULL);
if(!NT_SUCCESS(Status))
{
KdPrint((__DRIVER_NAME " ScsiPortInitialize failed with status 0x%08x\n", Status));
}
FUNCTION_EXIT();
return Status;
}
NDIS_STATUS
XenNet_D0Entry(struct xennet_info *xi)
{
NDIS_STATUS status;
PUCHAR ptr;
CHAR buf[128];
FUNCTION_ENTER();
xi->shutting_down = FALSE;
ptr = xi->config_page;
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_RING, "tx-ring-ref", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_RING, "rx-ring-ref", NULL, NULL);
#pragma warning(suppress:4054)
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_EVENT_CHANNEL, "event-channel", (PVOID)XenNet_HandleEvent, xi);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_READ_STRING_BACK, "mac", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_READ_STRING_BACK, "feature-sg", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_READ_STRING_BACK, "feature-gso-tcpv4", NULL, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_WRITE_STRING, "request-rx-copy", "1", NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_WRITE_STRING, "feature-rx-notify", "1", NULL);
RtlStringCbPrintfA(buf, ARRAY_SIZE(buf), "%d", !xi->config_csum);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_WRITE_STRING, "feature-no-csum-offload", buf, NULL);
RtlStringCbPrintfA(buf, ARRAY_SIZE(buf), "%d", (int)xi->config_sg);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_WRITE_STRING, "feature-sg", buf, NULL);
RtlStringCbPrintfA(buf, ARRAY_SIZE(buf), "%d", !!xi->config_gso);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_WRITE_STRING, "feature-gso-tcpv4", buf, NULL);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_PRE_CONNECT, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, 0); /* no pre-connect required */
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_POST_CONNECT, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateConnected);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateConnected);
__ADD_XEN_INIT_UCHAR(&ptr, 20);
__ADD_XEN_INIT_UCHAR(&ptr, 0);
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_XB_STATE_MAP_SHUTDOWN, NULL, NULL, NULL);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosing);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosing);
__ADD_XEN_INIT_UCHAR(&ptr, 50);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosed);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateClosed);
__ADD_XEN_INIT_UCHAR(&ptr, 50);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateInitialising);
__ADD_XEN_INIT_UCHAR(&ptr, XenbusStateInitWait);
__ADD_XEN_INIT_UCHAR(&ptr, 50);
__ADD_XEN_INIT_UCHAR(&ptr, 0);
#ifdef DEBUG_407_1241
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_COLOR_INIT, NULL, NULL, NULL);
#endif
ADD_XEN_INIT_REQ(&ptr, XEN_INIT_TYPE_END, NULL, NULL, NULL);
status = xi->vectors.XenPci_XenConfigDevice(xi->vectors.context);
if (!NT_SUCCESS(status))
{
KdPrint(("Failed to complete device configuration (%08x)\n", status));
return status;
}
status = XenNet_ConnectBackend(xi);
if (!NT_SUCCESS(status))
{
KdPrint(("Failed to complete device configuration (%08x)\n", status));
return status;
}
if (!xi->config_sg)
{
/* without SG, GSO can be a maximum of PAGE_SIZE */
xi->config_gso = min(xi->config_gso, PAGE_SIZE);
}
XenNet_TxInit(xi);
XenNet_RxInit(xi);
xi->connected = TRUE;
KeMemoryBarrier(); // packets could be received anytime after we set Frontent to Connected
FUNCTION_EXIT();
return status;
}
