[SCSI] mptspi: Add transport class Domain Validation

This is the first half of a patch to add the generic domain validation
to mptspi.  It also creates a secondary "virtual" channel for raid
component devices since these are now exported with no_uld_attach.

What Eric and I would have really liked is to export all physical
components on channel 0 and all raid components on channel 1.
Unfortunately, this would result in device renumbering on platforms with
mixed RAID/Physical devices which was considered unacceptable for
userland stability reasons.

Still to be done is to plug back the extra parameter setting and DV
pieces on reset and hotplug.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h
index 44b248d..2447a20 100644
--- a/drivers/message/fusion/mptscsih.h
+++ b/drivers/message/fusion/mptscsih.h
@@ -60,16 +60,6 @@
 
 #define MPT_SCSI_MAX_SECTORS    8192
 
-/* To disable domain validation, uncomment the
- * following line. No effect for FC devices.
- * For SCSI devices, driver will negotiate to
- * NVRAM settings (if available) or to maximum adapter
- * capabilities.
- */
-
-#define MPTSCSIH_ENABLE_DOMAIN_VALIDATION
-
-
 /* SCSI driver setup structure. Settings can be overridden
  * by command line options.
  */
@@ -109,3 +99,4 @@
 extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
 extern void mptscsih_timer_expired(unsigned long data);
 extern int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 target, u8 lun, int ctx2abort, ulong timeout);
+extern int mptscsih_raid_id_to_num(MPT_SCSI_HOST *hd, uint physdiskid);