.\"	$OpenBSD: si.4,v 1.4 2001/03/06 19:56:51 brad Exp $
.\"
.\" Copyright (c) 1998 The OpenBSD Project
.\" All rights reserved.
.\"
.\"
.Dd March 4, 1998
.Dt SI 4 sparc
.Os
.Sh NAME
.Nm si
.Nd NCR 5380 "Sun SCSI 3" VME SCSI controller
.Sh SYNOPSIS
.Cd "si0     at vmes0 addr 0xff200000 level 3 vect 0x40           " Pq sun4
.Cd "si0     at vmes0 addr 0xff200000 level 3 vect 0x40 flags 0x07" Pq sun4
.Sh DESCRIPTION
The
.Nm
is a VME SCSI controller based on the NCR 5380 chip, found in sun3 and sun4
systems with the VME bus.
.Sh DEVICE FLAGS
.Bl -tag -width speaker -compact
.It 0x01
Use DMA (may be polled)
.It 0x02
Use DMA completion interrupts
.It 0x04
Allow disconnect/reconnect
.El
.Pp
The
.Nm
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.

.Sh SEE ALSO
.Xr esp 4 ,
.Xr sw 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx .