Subject: NCR SCSI driver
To: None <firstname.lastname@example.org>
From: C Kane <email@example.com>
Date: 10/15/1998 09:11:29
I'm having a problem with the NCR SCSI driver
(/usr/src/sys/dev/pci/ncr.c). In trying to solve
that problem, I've come across another problem.
How many CCBs are actually needed? The ncr.c driver
seems to make a new ccb for every possible target,
whether the target exists or not. If the target does
exist, then it creates a new ccb for every possible
LUN, whether the LUN exists or not. If a LUN does
exist, two more CCBs are created. In this way, a
real device does get four CCBs, which seems to be the
plan, but a number of other CCBs are also created
which are probably never used.
Is there a reason for making all the extra CCBs?
I'm not on this list, please respond directly to me.
Whatever became of the CAM debate?