[SCSI] aacraid: Greater than 2TB capacity support

Received from Mark Salyzyn from Adaptec.

There are a few adapters that are capable of creating devices with this large
of a capacity, but now that we have the large fib support in, the management
applications will be capable of generating them.  The problem is, once they are
created, the driver will not be able to access the devices correctly without
this patch.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/aacraid/aacraid.h

 #if (!defined(dprintk))
 # define dprintk(x)
 #endif
+/* eg: if (nblank(dprintk(x))) */
+#define _nblank(x) #x
+#define nblank(x) _nblank(x)[0]
+
 
 /*------------------------------------------------------------------------------
  *              D E F I N E S
@@ -1012,6 +1016,7 @@ struct aac_dev
 	/* macro side-effects BEWARE */
 #	define			raw_io_interface \
 	  init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
+	u8			raw_io_64;
 	u8			printf_enabled;
 };
 
@@ -1362,8 +1367,10 @@ struct aac_srb_reply
 #define		VM_CtBlockVerify64	18
 #define		VM_CtHostRead64		19
 #define		VM_CtHostWrite64	20
+#define		VM_DrvErrTblLog		21
+#define		VM_NameServe64		22
 
-#define		MAX_VMCOMMAND_NUM	21	/* used for sizing stats array - leave last */
+#define		MAX_VMCOMMAND_NUM	23	/* used for sizing stats array - leave last */
 
 /*
  *	Descriptive information (eg, vital stats)
@@ -1472,6 +1479,7 @@ struct aac_mntent {
 						   manager (eg, filesystem) */
 	__le32			altoid;		/* != oid <==> snapshot or 
 						   broken mirror exists */
+	__le32			capacityhigh;
 };
 
 #define FSCS_NOTCLEAN	0x0001  /* fsck is neccessary before mounting */

drivers/scsi/aacraid/comminit.c

@@ -315,6 +315,13 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 		- sizeof(struct aac_fibhdr)
 		- sizeof(struct aac_write) + sizeof(struct sgmap))
 			/ sizeof(struct sgmap);
+	dev->raw_io_64 = 0;
+	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
+		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
+	 		(status[0] == 0x00000001)) {
+		if (status[1] & AAC_OPT_NEW_COMM_64)
+			dev->raw_io_64 = 1;
+	}
 	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
 	  0, 0, 0, 0, 0, 0,
 	  status+0, status+1, status+2, status+3, status+4))

drivers/scsi/aacraid/linit.c

@@ -772,6 +772,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	shost->irq = pdev->irq;
 	shost->base = pci_resource_start(pdev, 0);
 	shost->unique_id = unique_id;
+	shost->max_cmd_len = 16;
 
 	aac = (struct aac_dev *)shost->hostdata;
 	aac->scsi_host_ptr = shost;