iSCSI/shutdown advice needed

[Danny Braniss]

hi,
	I'm trying to finish up the iSCSI initiator,
and need some advice. To shutdown the initiator, I
need to:
	1- close down the CAM-peripherals, (ie da)
	2- empty up all pending iSCSI transactions
	3- close the tcp connection
2 & 3 I can handle, it's 1 that im stuck.
Q: how can I call the peripheral close function, or is there
   some CAM command?
   I tried 
	    xpt_async(AC_LOST_DEVICE, isp->cam_path, NULL);
   but this it far to drastic, and actually will cause panic
   if the device is still mounted.

danny