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SI(4) Device Drivers Manual (sparc) SI(4)

siNCR 5380 Sun SCSI 3 VME SCSI controller

si0 at vmes0 addr 0xff200000 level 3 vect 0x40 (sun4)
#si0 at vmes0 addr 0xff200000 level 3 vect 0x40 flags 0x07 (sun4)

The si is a VME SCSI controller based on the NCR 5380 chip, found in sun3 and sun4 systems with the VME bus.

Use DMA (may be polled)
Use DMA completion interrupts
Allow disconnect/reconnect

The si device flags may be OR'd together to enable any combination of the features listed above. If no flags are specified, the device will use DMA by default.

cd(4), ch(4), esp(4), intro(4), scsi(4), sd(4), st(4), sw(4), uk(4)

The si driver first appeared in NetBSD.

August 14, 2012 OpenBSD-6.0