VOID
ShutDown(
IN PVOID DeviceExtension
)
{
PADAPTER_EXTENSION adaptExt = (PADAPTER_EXTENSION)DeviceExtension;
ENTER_FN();
VirtIODeviceReset(&adaptExt->vdev);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_GUEST_FEATURES), 0);
if (adaptExt->vq[0]) {
adaptExt->vq[0]->vq_ops->shutdown(adaptExt->vq[0]);
VirtIODeviceDeleteQueue(adaptExt->vq[0], NULL);
adaptExt->vq[0] = NULL;
}
if (adaptExt->vq[1]) {
adaptExt->vq[1]->vq_ops->shutdown(adaptExt->vq[1]);
VirtIODeviceDeleteQueue(adaptExt->vq[1], NULL);
adaptExt->vq[1] = NULL;
}
if (adaptExt->vq[2]) {
adaptExt->vq[2]->vq_ops->shutdown(adaptExt->vq[2]);
VirtIODeviceDeleteQueue(adaptExt->vq[2], NULL);
adaptExt->vq[2] = NULL;
}
EXIT_FN();
}
static void WriteVirtIODeviceWord(ULONG_PTR ulRegister, u16 wValue)
{
if (ulRegister & ~PORT_MASK) {
StorPortWriteRegisterUshort(NULL, (PUSHORT)(ulRegister), (USHORT)(wValue));
} else {
StorPortWritePortUshort(NULL, (PUSHORT)(ulRegister), (USHORT)(wValue));
}
}
static struct virtqueue *FindVirtualQueue(PADAPTER_EXTENSION adaptExt, ULONG index, ULONG vector)
{
struct virtqueue *vq = NULL;
if (adaptExt->uncachedExtensionVa)
{
ULONG len;
PVOID ptr = (PVOID)((ULONG_PTR)adaptExt->uncachedExtensionVa + adaptExt->offset[index]);
PHYSICAL_ADDRESS pa = StorPortGetPhysicalAddress(adaptExt, NULL, ptr, &len);
if (pa.QuadPart)
{
vq = VirtIODevicePrepareQueue(&adaptExt->vdev, index, pa, ptr, len, NULL, FALSE);
}
if (vq == NULL)
{
RhelDbgPrint(TRACE_LEVEL_FATAL, ("%s>> cannot create virtual queue index = %d vector = % pa = %08I64X\n", __FUNCTION__, index, vector, pa.QuadPart));
return NULL;
}
if (vector)
{
unsigned res;
StorPortWritePortUshort(adaptExt, (PUSHORT)(adaptExt->vdev.addr + VIRTIO_MSI_QUEUE_VECTOR),(USHORT)vector);
res = StorPortReadPortUshort(adaptExt, (PUSHORT)(adaptExt->vdev.addr + VIRTIO_MSI_QUEUE_VECTOR));
RhelDbgPrint(TRACE_LEVEL_FATAL, ("%s>> VIRTIO_MSI_QUEUE_VECTOR vector = %d, res = 0x%x\n", __FUNCTION__, vector, res));
if(res == VIRTIO_MSI_NO_VECTOR)
{
VirtIODeviceDeleteQueue(vq, NULL);
vq = NULL;
RhelDbgPrint(TRACE_LEVEL_FATAL, ("%s>> Cannot create vq vector\n", __FUNCTION__));
return NULL;
}
StorPortWritePortUshort(adaptExt, (PUSHORT)(adaptExt->vdev.addr + VIRTIO_MSI_CONFIG_VECTOR),(USHORT)vector);
res = StorPortReadPortUshort(adaptExt, (PUSHORT)(adaptExt->vdev.addr + VIRTIO_MSI_CONFIG_VECTOR));
if (res != vector)
{
VirtIODeviceDeleteQueue(vq, NULL);
vq = NULL;
RhelDbgPrint(TRACE_LEVEL_FATAL, ("%s>> Cannot set config vector\n", __FUNCTION__));
return NULL;
}
}
}
return vq;
}
VOID
ShutDown(
IN PVOID DeviceExtension
)
{
ULONG index;
PADAPTER_EXTENSION adaptExt = (PADAPTER_EXTENSION)DeviceExtension;
ENTER_FN();
VirtIODeviceReset(adaptExt->pvdev);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_GUEST_FEATURES), 0);
for (index = VIRTIO_SCSI_CONTROL_QUEUE; index < adaptExt->num_queues + VIRTIO_SCSI_REQUEST_QUEUE_0; ++index) {
if (adaptExt->vq[index]) {
virtqueue_shutdown(adaptExt->vq[index]);
VirtIODeviceDeleteQueue(adaptExt->vq[index], NULL);
adaptExt->vq[index] = NULL;
}
}
EXIT_FN();
}
void WriteVirtIODeviceWord(ULONG_PTR ulRegister, u16 wValue)
{
StorPortWritePortUshort(NULL, (PUSHORT)(ulRegister),(USHORT)(wValue));
}
SCSI_ADAPTER_CONTROL_STATUS
VioScsiAdapterControl(
IN PVOID DeviceExtension,
IN SCSI_ADAPTER_CONTROL_TYPE ControlType,
IN PVOID Parameters
)
{
PSCSI_SUPPORTED_CONTROL_TYPE_LIST ControlTypeList;
ULONG AdjustedMaxControlType;
ULONG Index;
PADAPTER_EXTENSION adaptExt;
SCSI_ADAPTER_CONTROL_STATUS status = ScsiAdapterControlUnsuccessful;
BOOLEAN SupportedConrolTypes[5] = {TRUE, TRUE, TRUE, FALSE, FALSE};
adaptExt = (PADAPTER_EXTENSION)DeviceExtension;
ENTER_FN();
RhelDbgPrint(TRACE_LEVEL_VERBOSE, ("%s %d\n", __FUNCTION__, ControlType));
switch (ControlType) {
case ScsiQuerySupportedControlTypes: {
RhelDbgPrint(TRACE_LEVEL_VERBOSE, ("ScsiQuerySupportedControlTypes\n"));
ControlTypeList = (PSCSI_SUPPORTED_CONTROL_TYPE_LIST)Parameters;
AdjustedMaxControlType =
(ControlTypeList->MaxControlType < 5) ?
ControlTypeList->MaxControlType :
5;
for (Index = 0; Index < AdjustedMaxControlType; Index++) {
ControlTypeList->SupportedTypeList[Index] =
SupportedConrolTypes[Index];
}
status = ScsiAdapterControlSuccess;
break;
}
case ScsiStopAdapter: {
RhelDbgPrint(TRACE_LEVEL_VERBOSE, ("ScsiStopAdapter\n"));
ShutDown(DeviceExtension);
status = ScsiAdapterControlSuccess;
break;
}
case ScsiRestartAdapter: {
RhelDbgPrint(TRACE_LEVEL_VERBOSE, ("ScsiRestartAdapter\n"));
VirtIODeviceReset(&adaptExt->vdev);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)1);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)2);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
adaptExt->vq[0] = NULL;
adaptExt->vq[1] = NULL;
adaptExt->vq[2] = NULL;
if (!VioScsiHwInitialize(DeviceExtension))
{
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Cannot Initialize HW\n"));
break;
}
status = ScsiAdapterControlSuccess;
break;
}
default:
break;
}
EXIT_FN();
return status;
}
BOOLEAN
VioScsiHwInitialize(
IN PVOID DeviceExtension
)
{
PADAPTER_EXTENSION adaptExt = (PADAPTER_EXTENSION)DeviceExtension;
PVOID ptr = adaptExt->uncachedExtensionVa;
ULONG i;
#if (MSI_SUPPORTED == 1)
MESSAGE_INTERRUPT_INFORMATION msi_info;
#endif
ENTER_FN();
adaptExt->msix_vectors = 0;
#if (MSI_SUPPORTED == 1)
while(StorPortGetMSIInfo(DeviceExtension, adaptExt->msix_vectors, &msi_info) == STOR_STATUS_SUCCESS) {
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageId = %x\n", msi_info.MessageId));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageData = %x\n", msi_info.MessageData));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("InterruptVector = %x\n", msi_info.InterruptVector));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("InterruptLevel = %x\n", msi_info.InterruptLevel));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("InterruptMode = %s\n", msi_info.InterruptMode == LevelSensitive ? "LevelSensitive" : "Latched"));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageAddress = %p\n\n", msi_info.MessageAddress));
++adaptExt->msix_vectors;
}
if(!adaptExt->dump_mode && (adaptExt->msix_vectors > 1)) {
adaptExt->vq[0] = FindVirtualQueue(adaptExt, 0, 1);
}
if(!adaptExt->dump_mode && (adaptExt->msix_vectors > 2)) {
adaptExt->vq[1] = FindVirtualQueue(adaptExt, 1, 2);
}
if(!adaptExt->dump_mode && (adaptExt->msix_vectors > 3)) {
adaptExt->vq[2] = FindVirtualQueue(adaptExt, 2, 3);
}
#endif
if (!adaptExt->vq[0]) {
adaptExt->vq[0] = FindVirtualQueue(adaptExt, 0, 0);
}
if (!adaptExt->vq[0]) {
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Cannot find virtual queue 0\n"));
return FALSE;
}
if (!adaptExt->vq[1]) {
adaptExt->vq[1] = FindVirtualQueue(adaptExt, 1, 0);
}
if (!adaptExt->vq[1]) {
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Cannot find virtual queue 1\n"));
return FALSE;
}
if (!adaptExt->vq[2]) {
adaptExt->vq[2] = FindVirtualQueue(adaptExt, 2, 0);
}
if (!adaptExt->vq[2]) {
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Cannot find virtual queue 2\n"));
return FALSE;
}
adaptExt->tmf_cmd.SrbExtension = (PSRB_EXTENSION)((ULONG_PTR)adaptExt->uncachedExtensionVa + adaptExt->offset[3]);
adaptExt->events = (PVirtIOSCSIEventNode)((ULONG_PTR)adaptExt->uncachedExtensionVa + adaptExt->offset[4]);
if (!adaptExt->dump_mode && CHECKBIT(adaptExt->features, VIRTIO_SCSI_F_HOTPLUG)) {
PVirtIOSCSIEventNode events = adaptExt->events;
for (i = 0; i < 8; i++) {
if (!KickEvent(DeviceExtension, (PVOID)(&events[i]))) {
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Can't add event %d\n", i));
}
}
}
StorPortWritePortUshort(DeviceExtension,
(PUSHORT)(adaptExt->device_base + VIRTIO_PCI_GUEST_FEATURES),
(USHORT)((1 << VIRTIO_SCSI_F_HOTPLUG) | (1 << VIRTIO_SCSI_F_CHANGE)));
StorPortWritePortUchar(DeviceExtension,
(PUCHAR)(adaptExt->device_base + VIRTIO_PCI_STATUS),
(UCHAR)VIRTIO_CONFIG_S_DRIVER_OK);
EXIT_FN();
return TRUE;
}
ULONG
VioScsiFindAdapter(
IN PVOID DeviceExtension,
IN PVOID HwContext,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
IN PBOOLEAN Again
)
{
PADAPTER_EXTENSION adaptExt;
ULONG allocationSize;
ULONG pageNum;
ULONG dummy;
ULONG Size;
#if (MSI_SUPPORTED == 1)
PPCI_COMMON_CONFIG pPciConf = NULL;
UCHAR pci_cfg_buf[256];
ULONG pci_cfg_len;
#endif
UNREFERENCED_PARAMETER( HwContext );
UNREFERENCED_PARAMETER( BusInformation );
UNREFERENCED_PARAMETER( ArgumentString );
UNREFERENCED_PARAMETER( Again );
ENTER_FN();
adaptExt = (PADAPTER_EXTENSION)DeviceExtension;
memset(adaptExt, 0, sizeof(ADAPTER_EXTENSION));
adaptExt->dump_mode = IsCrashDumpMode;
ConfigInfo->Master = TRUE;
ConfigInfo->ScatterGather = TRUE;
ConfigInfo->DmaWidth = Width32Bits;
ConfigInfo->Dma32BitAddresses = TRUE;
ConfigInfo->Dma64BitAddresses = TRUE;
ConfigInfo->WmiDataProvider = FALSE;
ConfigInfo->AlignmentMask = 0x3;
ConfigInfo->MapBuffers = STOR_MAP_NON_READ_WRITE_BUFFERS;
ConfigInfo->SynchronizationModel = StorSynchronizeFullDuplex;
#if (MSI_SUPPORTED == 1)
ConfigInfo->HwMSInterruptRoutine = VioScsiMSInterrupt;
ConfigInfo->InterruptSynchronizationMode=InterruptSynchronizePerMessage;
#endif
if (!InitHW(DeviceExtension, ConfigInfo)) {
RhelDbgPrint(TRACE_LEVEL_ERROR, ("Cannot initialize HardWare\n"));
return SP_RETURN_NOT_FOUND;
}
#if (MSI_SUPPORTED == 1)
pci_cfg_len = StorPortGetBusData (DeviceExtension,
PCIConfiguration,
ConfigInfo->SystemIoBusNumber,
(ULONG)ConfigInfo->SlotNumber,
(PVOID)pci_cfg_buf,
(ULONG)256);
if (pci_cfg_len == 256)
{
UCHAR CapOffset;
PPCI_MSIX_CAPABILITY pMsixCapOffset;
pPciConf = (PPCI_COMMON_CONFIG)pci_cfg_buf;
if ( (pPciConf->Status & PCI_STATUS_CAPABILITIES_LIST) == 0)
{
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("NO CAPABILITIES_LIST\n"));
}
else
{
if ( (pPciConf->HeaderType & (~PCI_MULTIFUNCTION)) == PCI_DEVICE_TYPE )
{
CapOffset = pPciConf->u.type0.CapabilitiesPtr;
while (CapOffset != 0)
{
pMsixCapOffset = (PPCI_MSIX_CAPABILITY)(pci_cfg_buf + CapOffset);
if ( pMsixCapOffset->Header.CapabilityID == PCI_CAPABILITY_ID_MSIX )
{
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageControl.TableSize = %d\n", pMsixCapOffset->MessageControl.TableSize));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageControl.FunctionMask = %d\n", pMsixCapOffset->MessageControl.FunctionMask));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageControl.MSIXEnable = %d\n", pMsixCapOffset->MessageControl.MSIXEnable));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("MessageTable = %p\n", pMsixCapOffset->MessageTable));
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("PBATable = %d\n", pMsixCapOffset->PBATable));
adaptExt->msix_enabled = (pMsixCapOffset->MessageControl.MSIXEnable == 1);
}
else
{
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("CapabilityID = %x, Next CapOffset = %x\n", pMsixCapOffset->Header.CapabilityID, CapOffset));
}
CapOffset = pMsixCapOffset->Header.Next;
}
RhelDbgPrint(TRACE_LEVEL_INFORMATION, ("msix_enabled = %d\n", adaptExt->msix_enabled));
VirtIODeviceSetMSIXUsed(&adaptExt->vdev, adaptExt->msix_enabled);
}
else
{
RhelDbgPrint(TRACE_LEVEL_FATAL, ("NOT A PCI_DEVICE_TYPE\n"));
}
}
}
else
{
RhelDbgPrint(TRACE_LEVEL_FATAL, ("CANNOT READ PCI CONFIGURATION SPACE %d\n", pci_cfg_len));
}
#endif
GetScsiConfig(DeviceExtension);
ConfigInfo->NumberOfBuses = 1;
ConfigInfo->MaximumNumberOfTargets = (UCHAR)adaptExt->scsi_config.max_target;
ConfigInfo->MaximumNumberOfLogicalUnits = (UCHAR)adaptExt->scsi_config.max_lun;
if(adaptExt->dump_mode) {
ConfigInfo->NumberOfPhysicalBreaks = 8;
} else {
ConfigInfo->NumberOfPhysicalBreaks = min((MAX_PHYS_SEGMENTS + 1), adaptExt->scsi_config.seg_max);
}
ConfigInfo->MaximumTransferLength = 0x00FFFFFF;
VirtIODeviceReset(&adaptExt->vdev);
if (adaptExt->dump_mode) {
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)1);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_SEL), (USHORT)2);
StorPortWritePortUshort(DeviceExtension, (PUSHORT)(adaptExt->device_base + VIRTIO_PCI_QUEUE_PFN),(USHORT)0);
}
adaptExt->features = StorPortReadPortUlong(DeviceExtension, (PULONG)(adaptExt->device_base + VIRTIO_PCI_HOST_FEATURES));
allocationSize = 0;
adaptExt->offset[0] = 0;
VirtIODeviceQueryQueueAllocation(&adaptExt->vdev, 0, &pageNum, &Size);
allocationSize += ROUND_TO_PAGES(Size);
adaptExt->offset[1] = ROUND_TO_PAGES(Size);
VirtIODeviceQueryQueueAllocation(&adaptExt->vdev, 1, &dummy, &Size);
allocationSize += ROUND_TO_PAGES(Size);
adaptExt->offset[2] = adaptExt->offset[1] + ROUND_TO_PAGES(Size);
VirtIODeviceQueryQueueAllocation(&adaptExt->vdev, 2, &dummy, &Size);
allocationSize += ROUND_TO_PAGES(Size);
adaptExt->offset[3] = adaptExt->offset[2] + ROUND_TO_PAGES(Size);
allocationSize += ROUND_TO_PAGES(sizeof(SRB_EXTENSION));
adaptExt->offset[4] = adaptExt->offset[3] + ROUND_TO_PAGES(sizeof(SRB_EXTENSION));
allocationSize += ROUND_TO_PAGES(sizeof(VirtIOSCSIEventNode) * 8);
#if (INDIRECT_SUPPORTED == 1)
if(!adaptExt->dump_mode) {
adaptExt->indirect = CHECKBIT(adaptExt->features, VIRTIO_RING_F_INDIRECT_DESC);
}
#else
adaptExt->indirect = 0;
#endif
if(adaptExt->indirect) {
adaptExt->queue_depth = max(2, (pageNum / 4));
} else {
adaptExt->queue_depth = pageNum / ConfigInfo->NumberOfPhysicalBreaks - 1;
}
RhelDbgPrint(TRACE_LEVEL_ERROR, ("breaks_number = %x queue_depth = %x\n",
ConfigInfo->NumberOfPhysicalBreaks,
adaptExt->queue_depth));
adaptExt->uncachedExtensionVa = StorPortGetUncachedExtension(DeviceExtension, ConfigInfo, allocationSize);
if (!adaptExt->uncachedExtensionVa) {
LogError(DeviceExtension,
SP_INTERNAL_ADAPTER_ERROR,
__LINE__);
RhelDbgPrint(TRACE_LEVEL_FATAL, ("Can't get uncached extension\n"));
return SP_RETURN_ERROR;
}
return SP_RETURN_FOUND;
}