Add man page aic7xxx driver ; from pr port-i386/2600
That pr put this file in man4.i386, but since the driver isn't i386 specific, I thought it should go here instead.
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# $NetBSD: Makefile,v 1.23 1996/06/26 21:13:37 jonathan Exp $
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# $NetBSD: Makefile,v 1.24 1996/07/10 22:58:33 explorer Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/18/93
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MAN= audio.4 bpf.4 ccd.4 clnp.4 cltp.4 ddb.4 drum.4 esis.4 fd.4 icmp.4 \
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idp.4 imp.4 inet.4 ip.4 iso.4 lkm.4 lo.4 netintro.4 ns.4 nsip.4 \
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null.4 pty.4 route.4 spp.4 strip.4 tb.4 tcp.4 termios.4 tty.4 \
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tp.4 udp.4 unix.4 vnd.4
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MAN= audio.4 ahc.4 bpf.4 ccd.4 clnp.4 cltp.4 ddb.4 drum.4 esis.4 fd.4 \
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icmp.4 idp.4 imp.4 inet.4 ip.4 iso.4 lkm.4 lo.4 netintro.4 ns.4 \
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nsip.4 null.4 pty.4 route.4 spp.4 strip.4 tb.4 tcp.4 termios.4 \
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tty.4 tp.4 udp.4 unix.4 vnd.4
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MLINKS+=fd.4 stderr.4 fd.4 stdin.4 fd.4 stdout.4
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MLINKS+=netintro.4 networking.4
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SUBDIR= man4.amiga man4.arm32 man4.atari man4.hp300 man4.i386 man4.mac68k \
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177
share/man/man4/ahc.4
Normal file
177
share/man/man4/ahc.4
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.\" $NetBSD: ahc.4,v 1.1 1996/07/10 22:58:35 explorer Exp $
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.\"
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.\" Copyright (c) 1995, 1996
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.\" Justin T. Gibbs. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software withough specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\"
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.Dd April 20, 1996
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.Dt AHC 4 i386
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.Os FreeBSD
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.Sh NAME
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.Nm ahc
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.Nd Adaptec VL/EISA/PCI SCSI host adapter driver
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.Sh SYNOPSIS
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.ie 0 \{
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For one or more VL/EISA cards:
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.Cd controller eisa0
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.Cd controller ahc0
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\}
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\{For VL cards:
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.Cd ahc* at eisa? slot ?
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.Cd options AHA284X_HACK
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.Pp
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For EISA cards:
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.Cd ahc* at eisa? slot ?\}
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.Pp
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.ie 0 \{
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For one or more PCI cards:
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.Cd controller pci0
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.Cd controller ahc0
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\}
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\{For PCI cards:
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.Cd ahc* at pci? dev ? function ?\}
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.Pp
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To enable tagged queueing:
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.Cd options AHC_TAGENABLE
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.Pp
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To enable SCB paging:
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.Cd options AHC_SCBPAGING_ENABLE
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.Pp
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.ie 0 \{
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For one or more SCSI busses:
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.Cd controller scbus0 at ahc0
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\}
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\{For SCSI busses:
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.Cd scsibus* at ahc?\}
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.Sh DESCRIPTION
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This driver provides access to the
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.Tn SCSI
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bus connected to an Adaptec
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274x, 284x, 2940, 3940, or controllers based on the
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.Tn AIC7770,
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.Tn AIC7850,
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.Tn AIC7860,
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.Tn AIC7870,
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or
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.Tn AIC7880
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host adapter chips.
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Features include support for twin and wide busses,
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ultra
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.Tn SCSI,
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two active commands at a time per non-tagged queueing target,
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tagged queuing,
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and SCB paging which allows up to 255 active commands on all adapters
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except those using
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.Tn AIC7770
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chips prior to revision E.
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Tagged queueing is enabled with the
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.Dq Dv AHC_TAGENABLE
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configuration option.
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SCB paging is enabled with the
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.Dq Dv AHC_SCBPAGING_ENABLE
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configuration option.
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.Pp
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Per target configuration performed in the
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.Tn SCSI-Select
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menu, accesible at boot
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in
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.No non- Ns Tn EISA
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models or through an
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.Tn EISA
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configuration utility for
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.Tn EISA
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models,
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is honored by this driver with the stipulation that the
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.Tn BIOS
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must be enabled for
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.Tn EISA
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adaptors. This includes synchronous/asynchronous transfers,
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maximum synchronous negotiation rate,
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disconnection,
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and the host adapter's SCSI ID.
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.Pp
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Note that I/O addresses are determined automatically by the probe routines,
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but care should be taken when using a 284x
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.Pq Tn VESA No local bus controller
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in an
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.Tn EISA
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system. Ensure that the jumpers setting the I/O area for the 284x match the
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.Tn EISA
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slot into which the card is inserted to prevent conflicts with other
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.Tn EISA
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cards.
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.Sh BUGS
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Some Quantum drives (at least the Empire 2100 and 1080s) will not run on an
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.Tn AIC7870
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Rev B in synchronous mode at 10MHz. Controllers with this problem have a
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42 MHz clock crystal on them and run slightly above 10MHz, causing the
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drive much confusion. Setting a maximum synchronous negotiation rate of 8MHz
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in the
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.Tn SCSI-Select
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utility
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will allow normal function.
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.Sh SEE ALSO
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.Xr aha 4 ,
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.Xr ahb 4
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.if 0 \{
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.Xr cd 4 ,
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.Xr scsi 4 ,
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.Xr sd 4 ,
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.Xr st 4
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\}
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.Sh AUTHOR
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The
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.Nm
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driver was written by Justin Gibbs. The
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.Tn AIC7xxx
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sequencer-code assembler was
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written by John Aycock.
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.if 1 \{NetBSD porting is done by Stefan Grefen, Charles M. Hannum,
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Michael Graff, Pete Bentley and Noriyuki Soda.
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.Sh BUGS
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There are four problems known in NetBSD version of this driver.
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All of these problems relate to NetBSD MI SCSI system.
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.Pp
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Cannot handle SCSI ID greater than 7 with WIDE SCSI adapter.
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.Pp
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It is dangerous to use SCSI devices more than half of SCBs.
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For example, AHA-274x and AHA-284x have only 4 SCBs, so that using 3 SCSI
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devices is dangerous, using 2 devices is OK.
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.Pp
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There is possibility of causing "Can't malloc SCB" error.
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.Pp
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SCSI residual handling is not complete.
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\}
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.Sh HISTORY
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The
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.Nm
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driver appeared in
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.Tn FreeBSD
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2.1
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.if 1 \{and
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.Tn NetBSD
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1.1.
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\}
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