NDIS_STATUS
MiniportInitialize (
IN NDIS_HANDLE MiniportAdapterHandle,
IN NDIS_HANDLE MiniportDriverContext,
IN PNDIS_MINIPORT_INIT_PARAMETERS MiniportInitParameters
)
{
PADAPTER adapter = NULL;
NDIS_STATUS ndisStatus;
PDEVICE_OBJECT pdo;
NTSTATUS status;
UNREFERENCED_PARAMETER(MiniportDriverContext);
UNREFERENCED_PARAMETER(MiniportInitParameters);
Trace("====>\n");
status = AllocAdapter(&adapter);
if (!NT_SUCCESS(status) || adapter == NULL) {
ndisStatus = NDIS_STATUS_RESOURCES;
goto exit;
}
RtlZeroMemory(adapter, sizeof (ADAPTER));
pdo = NULL;
NdisMGetDeviceProperty(MiniportAdapterHandle,
&pdo,
NULL,
NULL,
NULL,
NULL);
status = QueryVifInterface(pdo, adapter);
if (!NT_SUCCESS(status)) {
ndisStatus = NDIS_STATUS_ADAPTER_NOT_FOUND;
goto exit;
}
adapter->AcquiredInterfaces = TRUE;
ndisStatus = AdapterInitialize(adapter, MiniportAdapterHandle);
if (ndisStatus != NDIS_STATUS_SUCCESS) {
goto exit;
}
exit:
if (ndisStatus != NDIS_STATUS_SUCCESS) {
if (adapter != NULL) {
AdapterDelete(&adapter);
}
}
Trace("<====\n");
return ndisStatus;
}
NDIS_STATUS
MiniportInitialize (
IN NDIS_HANDLE MiniportAdapterHandle,
IN NDIS_HANDLE MiniportDriverContext,
IN PNDIS_MINIPORT_INIT_PARAMETERS MiniportInitParameters
)
{
PADAPTER adapter = NULL;
NDIS_STATUS ndisStatus;
PCHAR path;
PDEVICE_OBJECT pdo;
PCHAR xenbusPath = NULL;
int i;
UNREFERENCED_PARAMETER(MiniportDriverContext);
UNREFERENCED_PARAMETER(MiniportInitParameters);
TraceVerbose(("====> '%s'.\n", __FUNCTION__));
//
// Wait for xenbus to come up. SMP guests sometimes try and
// initialise xennet and xenvbd in parallel when they come back
// from hibernation, and that causes problems.
//
if (!xenbus_await_initialisation()) {
ndisStatus = NDIS_STATUS_DEVICE_FAILED;
goto exit;
}
//
// 8021P support is disabled by default.
// It can be turned on by specifying the appropriate PV boot option.
//
if (XenPVFeatureEnabled(DEBUG_NIC_8021_P)) {
XennetMacOptions |= NDIS_MAC_OPTION_8021P_PRIORITY;
}
xenbus_write(XBT_NIL, "drivers/xenwnet", XENNET_VERSION);
NdisMGetDeviceProperty(MiniportAdapterHandle,
&pdo,
NULL,
NULL,
NULL,
NULL);
xenbusPath = xenbus_find_frontend(pdo);
if (!xenbusPath) {
ndisStatus = NDIS_STATUS_ADAPTER_NOT_FOUND;
goto exit;
}
TraceNotice(("Found '%s' frontend.\n", xenbusPath));
adapter = XmAllocateZeroedMemory(sizeof(ADAPTER));
if (adapter == NULL) {
ndisStatus = NDIS_STATUS_RESOURCES;
goto exit;
}
path = xenbusPath;
xenbusPath = NULL;
i = 0;
do {
ndisStatus = AdapterInitialize(adapter, MiniportAdapterHandle, path);
if (ndisStatus != NDIS_STATUS_SUCCESS) {
TraceWarning (("Waiting for backend...\n"));
NdisMSleep (1000000); // 1 sec
}
} while ((ndisStatus != NDIS_STATUS_SUCCESS) && (++i < 30));
if (ndisStatus != NDIS_STATUS_SUCCESS) {
goto exit;
}
exit:
if (ndisStatus != NDIS_STATUS_SUCCESS) {
if (adapter) {
XmFreeMemory(adapter->BackendPath);
adapter->BackendPath = NULL;
AdapterDelete(&adapter);
}
if (xenbusPath) {
XmFreeMemory(xenbusPath);
}
}
TraceVerbose(("<==== '%s'.\n", __FUNCTION__));
return ndisStatus;
}
