AHC_SG_PRELOAD    231 dev/ic/aic7xxxvar.h AHC_SG_PRELOAD	= 0x00080,	/* Can perform auto-SG preload */
AHC_SG_PRELOAD    266 dev/ic/aic7xxxvar.h |AHC_QUEUE_REGS|AHC_SG_PRELOAD|AHC_MULTI_TID