.\"	$NetBSD: osiop.4,v 1.7 2014/02/24 07:23:40 skrll Exp $
.\"
.\" Copyright (c) 2001 Izumi Tsutsui.  All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
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.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.Dd May 12, 2001
.Dt OSIOP 4
.Os
.Sh NAME
.Nm osiop
.Nd Symbios/NCR 53C710 SCSI driver
.Sh SYNOPSIS
.Ss arc
.Cd "osiop* at jazzio? flags 0x00000"
.Ss ews4800mips
.Cd "osiop* at sbdio? flags 0x00000"
.Ss hppa
.Cd "osiop0 at gsc? flags 0x00000"
.Ss mvme68k
.Cd "osiop0 at pcctwo? ipl 2"
.Pp
.Cd "scsibus* at osiop?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn Symbios/NCR
53C710
.Tn SCSI
controller chip.
.Pp
For the
.Tn Symbios/NCR
53C700
.Tn SCSI
host adapters, use the
.Xr oosiop 4
driver.
.Pp
For the
.Tn Symbios/NCR
53C8xx
.Tn PCI
.Tn SCSI
host adapters, use the
.Xr siop 4
or
.Xr esiop 4
driver.
.Sh CONFIGURATION
The
.Nm
driver supports the following
.Sy flags
for use in
.Xr config 1
files:
.Pp
.Bl -tag -compact -width "bits 8-15:"
.It bits 0-7 :
disable disconnect/reselect for the corresponding
.Tn SCSI
target
.It bits 8-15 :
disable synchronous negotiation for
.Tn SCSI
target
.It bits 16 :
disable DMA interrupts
.El
.Pp
.Qq Target
is synonymous with
.Tn SCSI
ID number.
.Pp
Note that
.Tn SCSI
tape drives should be allowed to perform disconnect/reselect or performance
will suffer.
.\" .Sh BUGS
.\" Neither
.\" .Tn DMA
.\" or synchronous data transfers are currently supported.
.Sh SEE ALSO
.Xr cd 4 ,
.Xr ch 4 ,
.Xr esiop 4 ,
.Xr intro 4 ,
.Xr oosiop 4 ,
.Xr scsi 4 ,
.Xr sd 4 ,
.Xr siop 4 ,
.Xr ss 4 ,
.Xr st 4 ,
.Xr uk 4 ,
.Xr scsipi 9
.Sh HISTORY
.Nm
driver first appeared in
.Nx 1.6 .
.Pp
The original
.Tn NCR
53C710
driver appeared in
.Nx
1.0 amiga port, and Izumi Tsutsui
.Aq tsutsui@NetBSD.org
modified the driver and made it machine-independent.