NTSTATUS
SpPagingPathNotificationCompletion(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP LowerIrp,
IN PDEVICE_OBJECT Fdo
)
{
PIRP upperIrp = LowerIrp->AssociatedIrp.MasterIrp;
PIO_STACK_LOCATION lowerStack = IoGetCurrentIrpStackLocation(LowerIrp);
PIO_STACK_LOCATION upperStack = IoGetCurrentIrpStackLocation(upperIrp);
PDEVICE_OBJECT pdo = upperStack->DeviceObject;
PADAPTER_EXTENSION lowerExtension;
PLOGICAL_UNIT_EXTENSION upperExtension;
ASSERT(Fdo != NULL);
ASSERT(pdo != NULL);
DebugPrint((1, "Completion - IRP_MN_DEVICE_USAGE_NOTIFICATION: Completion of "
"paging notification irp %#p sent due to irp %#p\n",
LowerIrp, upperIrp));
lowerExtension = (PADAPTER_EXTENSION) Fdo->DeviceExtension;
upperExtension = (PLOGICAL_UNIT_EXTENSION) pdo->DeviceExtension;
ASSERT_FDO(lowerExtension->DeviceObject);
ASSERT_PDO(upperExtension->DeviceObject);
DebugPrint((1, "Completion - IRP_MN_DEVICE_USAGE_NOTIFICATION: irp status %#08lx\n",
LowerIrp->IoStatus.Status));
if(NT_SUCCESS(LowerIrp->IoStatus.Status)) {
PUCHAR typeName = "INSERT TYPE HERE";
PULONG lowerCount;
PULONG upperCount;
//
// The parameters have already been erased from the lower irp stack
// location - use the parameters from the upper once since they're
// just a copy.
//
switch(upperStack->Parameters.UsageNotification.Type) {
case DeviceUsageTypePaging: {
lowerCount = &(lowerExtension->CommonExtension.PagingPathCount);
upperCount = &(upperExtension->CommonExtension.PagingPathCount);
typeName = "PagingPathCount";
break;
}
case DeviceUsageTypeHibernation: {
lowerCount = &(lowerExtension->CommonExtension.HibernatePathCount);
upperCount = &(upperExtension->CommonExtension.HibernatePathCount);
typeName = "HibernatePathCount";
break;
}
case DeviceUsageTypeDumpFile: {
lowerCount = &(lowerExtension->CommonExtension.DumpPathCount);
upperCount = &(upperExtension->CommonExtension.DumpPathCount);
typeName = "DumpPathCount";
break;
}
default: {
typeName = "unknown type";
lowerCount = upperCount = NULL;
break;
}
}
if(lowerCount != NULL) {
IoAdjustPagingPathCount(
lowerCount,
upperStack->Parameters.UsageNotification.InPath
);
DebugPrint((1, "Completion - IRP_MN_DEVICE_USAGE_NOTIFICATION: "
"Fdo %s count - %d\n",
typeName, *lowerCount));
IoInvalidateDeviceState(lowerExtension->LowerPdo);
}
if(upperCount != NULL) {
IoAdjustPagingPathCount(
upperCount,
upperStack->Parameters.UsageNotification.InPath
);
DebugPrint((1, "Completion - IRP_MN_DEVICE_USAGE_NOTIFICATION: "
"Pdo %s count - %d\n",
typeName, *upperCount));
IoInvalidateDeviceState(upperExtension->DeviceObject);
}
}
upperIrp->IoStatus = LowerIrp->IoStatus;
SpReleaseRemoveLock(lowerExtension->CommonExtension.DeviceObject, LowerIrp);
SpReleaseRemoveLock(upperExtension->CommonExtension.DeviceObject, upperIrp);
IoMarkIrpPending(upperIrp);
SpCompleteRequest(upperExtension->CommonExtension.DeviceObject,
upperIrp,
NULL,
IO_NO_INCREMENT);
IoFreeIrp(LowerIrp);
return STATUS_MORE_PROCESSING_REQUIRED;
}
NTSTATUS
bus_unplug_dev (
int addr,
PFDO_DEVICE_DATA fdodata
)
{
PLIST_ENTRY entry;
PPDO_DEVICE_DATA pdodata;
int found=0, all;
PAGED_CODE ();
if(addr<0||addr>127)
return STATUS_INVALID_PARAMETER;
all = (0 == addr);
ExAcquireFastMutex (&fdodata->Mutex);
if (all) {
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_NOISE,
("Plugging out all the devices!\n"));
} else {
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_NOISE,
("Plugging out %d\n", addr));
}
if (fdodata->NumPDOs == 0) {
//
// We got a 2nd plugout...somebody in user space isn't playing nice!!!
//
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_ERROR,
("BAD BAD BAD...2 removes!!! Send only one!\n"));
ExReleaseFastMutex (&fdodata->Mutex);
return STATUS_NO_SUCH_DEVICE;
}
for (entry = fdodata->ListOfPDOs.Flink;
entry != &fdodata->ListOfPDOs;
entry = entry->Flink) {
pdodata = CONTAINING_RECORD (entry, PDO_DEVICE_DATA, Link);
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_NOISE,
("found device %d\n", pdodata->SerialNo));
if (all || addr == pdodata->SerialNo) {
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_INFO,
("Plugging out %d\n", pdodata->SerialNo));
pdodata->Present = FALSE;
complete_pending_read_irp(pdodata);
found = 1;
if (!all) {
break;
}
}
}
ExReleaseFastMutex (&fdodata->Mutex);
if (found) {
IoInvalidateDeviceRelations (fdodata->UnderlyingPDO, BusRelations);
ExAcquireFastMutex (&fdodata->Mutex);
for (entry = fdodata->ListOfPDOs.Flink;
entry != &fdodata->ListOfPDOs;
entry = entry->Flink) {
pdodata = CONTAINING_RECORD (entry, PDO_DEVICE_DATA, Link);
if( pdodata->Present ==FALSE){
complete_pending_irp(pdodata);
SET_NEW_PNP_STATE(pdodata,PNP_DEVICE_REMOVED);
IoInvalidateDeviceState(pdodata->Self);
}
}
ExReleaseFastMutex (&fdodata->Mutex);
Bus_KdPrint (fdodata, BUS_DBG_IOCTL_ERROR,
("Device %d plug out finished\n", addr));
return STATUS_SUCCESS;
}
return STATUS_INVALID_PARAMETER;
}
