Ongoing U320 AIC7902 Seagate ST318453LW issues, SCB timed out

[Justin T. Gibbs]

> you mean like kern.cam.ahd0.max_tags?

I mean that the trottling should be done in CAM so that it works
for any SIM driver.  This would probably mean something like:

kern.cam.scsi.max_tags

and 

kern.cam.scsi0.max_tags

In otherwords, a global and the ability to override the global on a
per-bus basis.  Just make sure the code doesn't try to enforce a maximum
that is larger than the maximum reported by the SIM in its path inquiry
response.

--
Justin