how to limit SCSI TCQ depth in FreeBSD?

[Scott Long]

Frantisek Rysanek wrote:
> Dear SCSI experts and FreeBSD veterans,
> 
> I'm looking for advice with an apparently simple SCSI issue:
> how do I set a maximum TCQ depth in FreeBSD?
> 
> Scenario:
> - an U320 SCSI disk drive

Knowing what brand, model, and fwrev of disks these are will help quite
a bit.  As others note, using camcontrol to limit the tags will work
for now.

Scott