Patch was originally submitted upstream on 4/21/2008:
  http://marc.info/?l=linux-scsi&m=120880973719266&w=2

Somewhere, it never get merged. The patch restructures the task mgmt
routines, commonizing like behavior. Then the patch changes device
reset to LUN resets, and adds a target reset handler.
Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>