• Tony Battersby's avatar
    [SCSI] move single_lun flag from scsi_device to scsi_target · 25d7c363
    Tony Battersby authored
    Some SCSI tape medium changers that need the BLIST_SINGLELUN flag have
    the medium changer at one LUN and the tape drive at a different LUN.
    The inquiry string of the tape drive may be different from that of the
    medium changer.  In order for single_lun to be effective, every
    scsi_device under a given scsi_target must have it set.  This means that
    there needs to be a blacklist entry for BOTH the medium changer AND the
    tape drive, which is impractical because some medium changers may be
    paired with a variety of different tape drive models.  It makes more
    sense to put the single_lun flag in scsi_target instead of scsi_device,
    which causes every device at a given target ID to inherit the single_lun
    flag from one LUN.  This makes it possible to blacklist just the medium
    changer and not the tape drive.
    Signed-off-by: default avatarTony Battersby <tonyb@cybernetics.com>
    Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
    25d7c363
scsi_device.h 14.3 KB