aic7xxx question

I have a quick aic7xxx question.. where is the routine that initializes the SCB's? I see where they are being allocated in kernel memory, but I need to know where/how we tell the controller what their DMA address and any other status bits are... that's not obvious

(Suspend/resume progress: I've fixed the storm of bus reset interrupts, but now I am getting a storm of NO_MATCH sequencer interrupts.)