- Enabled the command queueing (in DiskClassCreateDeviceObject).
- Do always reread the partition table in DiskBuildPartitionTable, 
  because DiskBuildPartitionTable is only called for removable media's.
- If there is no partition table available, set the disk data entries 
  for this volume to the super floppy format (in DiskBuildPartitionTable).

reactos/drivers/storage/disk

diff -u -r1.41 -r1.42
--- disk.c	10 May 2004 18:02:20 -0000	1.41
+++ disk.c	21 Jun 2004 21:03:12 -0000	1.42
@@ -16,7 +16,7 @@

  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

-/* $Id: disk.c,v 1.41 2004/05/10 18:02:20 gvg Exp $

+/* $Id: disk.c,v 1.42 2004/06/21 21:03:12 hbirr Exp $

  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel

@@ -548,6 +548,14 @@

   DiskDeviceExtension->PathId = InquiryData->PathId;
   DiskDeviceExtension->TargetId = InquiryData->TargetId;
   DiskDeviceExtension->Lun = InquiryData->Lun;

+  DiskDeviceExtension->SrbFlags = 0;
+
+  /* Enable the command queueing, if it possible */
+  if (Capabilities->TaggedQueuing &&
+      ((PINQUIRYDATA)InquiryData->InquiryData)->CommandQueue)
+    {
+      DiskDeviceExtension->SrbFlags |= SRB_FLAGS_QUEUE_ACTION_ENABLE;
+    }

 
   /* Get timeout value */
   DiskDeviceExtension->TimeOutValue =

@@ -589,7 +597,7 @@

     }
 
   /* Allocate sense data buffer */

-  DiskDeviceExtension->SenseData = ExAllocatePool(NonPagedPool,

+  DiskDeviceExtension->SenseData = ExAllocatePool(NonPagedPoolCacheAligned,

 						  SENSE_BUFFER_SIZE);
   if (DiskDeviceExtension->SenseData == NULL)
     {

@@ -853,14 +861,17 @@

   DiskDeviceExtension = (PDEVICE_EXTENSION)DiskDeviceObject->DeviceExtension;
   DiskData = (PDISK_DATA)(DiskDeviceExtension + 1);
 

-  if (DiskDeviceExtension->StartingOffset.QuadPart)

+  Status = ScsiClassReadDriveCapacity(DiskDeviceObject);
+  if (!NT_SUCCESS(Status))

     {

-      DPRINT("Partition already installed\n");
-      return(STATUS_SUCCESS);

+      /* Drive is not ready. */
+      DPRINT("Drive not ready\n");
+      DiskData->DriveNotReady = TRUE;
+      return Status;

     }
 

-      /* Read partition table */
-  Status = IoReadPartitionTable(DiskDeviceObject,

+  /* Read partition table */
+  Status = IoReadPartitionTable(DiskDeviceExtension->PhysicalDevice,

 				DiskDeviceExtension->DiskGeometry->BytesPerSector,
 				TRUE,
 				&PartitionList);

@@ -886,27 +897,42 @@

       /* Set disk signature */
       DiskData->Signature = PartitionList->Signature;
 

-      for (PartitionNumber = 0; PartitionNumber < PartitionList->PartitionCount; PartitionNumber++)
-	{
-	  PartitionEntry = &PartitionList->PartitionEntry[PartitionNumber];

+      DiskData->NextPartition = NULL;
+
+      if (PartitionList->PartitionCount)
+        {
+          for (PartitionNumber = 0; PartitionNumber < PartitionList->PartitionCount; PartitionNumber++)
+	    {
+	      PartitionEntry = &PartitionList->PartitionEntry[PartitionNumber];

-      	DiskData->NextPartition = NULL;
-      	DiskData->PartitionType = PartitionEntry->PartitionType;
-      	DiskData->PartitionNumber = PartitionNumber + 1;
-      	DiskData->PartitionOrdinal = PartitionNumber + 1;
-      	DiskData->HiddenSectors = PartitionEntry->HiddenSectors;
-      	DiskData->BootIndicator = PartitionEntry->BootIndicator;
-      	DiskData->DriveNotReady = FALSE;
-      	DiskDeviceExtension->StartingOffset = PartitionEntry->StartingOffset;
-      	DiskDeviceExtension->PartitionLength = PartitionEntry->PartitionLength;

+      	      DiskData->PartitionType = PartitionEntry->PartitionType;
+      	      DiskData->PartitionNumber = PartitionNumber + 1;
+      	      DiskData->PartitionOrdinal = PartitionNumber + 1;
+      	      DiskData->HiddenSectors = PartitionEntry->HiddenSectors;
+      	      DiskData->BootIndicator = PartitionEntry->BootIndicator;
+      	      DiskData->DriveNotReady = FALSE;
+      	      DiskDeviceExtension->StartingOffset = PartitionEntry->StartingOffset;
+      	      DiskDeviceExtension->PartitionLength = PartitionEntry->PartitionLength;

-	  DPRINT("Partition %02ld: nr: %d boot: %1x type: %x offset: %I64d size: %I64d\n",
-		 PartitionNumber,
-		 DiskData->PartitionNumber,
-		 DiskData->BootIndicator,
-		 DiskData->PartitionType,
-		 DiskDeviceExtension->StartingOffset.QuadPart / 512 /*DrvParms.BytesPerSector*/,
-		 DiskDeviceExtension->PartitionLength.QuadPart / 512 /* DrvParms.BytesPerSector*/);

+	      DPRINT1("Partition %02ld: nr: %d boot: %1x type: %x offset: %I64d size: %I64d\n",
+		      PartitionNumber,
+		      DiskData->PartitionNumber,
+		      DiskData->BootIndicator,
+		      DiskData->PartitionType,
+		      DiskDeviceExtension->StartingOffset.QuadPart / 512 /*DrvParms.BytesPerSector*/,
+		      DiskDeviceExtension->PartitionLength.QuadPart / 512 /* DrvParms.BytesPerSector*/);
+	    }
+	}
+      else
+        {
+      	  DiskData->PartitionType = 0;
+      	  DiskData->PartitionNumber = 1;
+      	  DiskData->PartitionOrdinal = 0;
+          DiskData->HiddenSectors = 0;
+ 	  DiskData->BootIndicator = 0;
+  	  DiskData->DriveNotReady = FALSE;
+          DiskDeviceExtension->PartitionLength.QuadPart += DiskDeviceExtension->StartingOffset.QuadPart;
+	  DiskDeviceExtension->StartingOffset.QuadPart = 0;

 	}    
     }
 

@@ -980,7 +1006,7 @@

 	    if (!NT_SUCCESS(Status))
 	      {
 		/* Drive is not ready */

-		DiskData->DriveNotReady = FALSE;

+		DiskData->DriveNotReady = TRUE;

 		break;
 	      }