136 lines
5.0 KiB
Groff
136 lines
5.0 KiB
Groff
.\"
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.\" Copyright (c) 1994 Jordan Hubbard
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.\" 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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.\" $FreeBSD$
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.\"
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.Dd October 16, 1998
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.Dt BT 4 i386
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.Os FreeBSD
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.Sh NAME
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.Nm bt
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.Nd Buslogic/Mylex MultiMaster SCSI host adapter driver
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.Sh SYNOPSIS
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.Cd "device bt0 at isa? port ? cam irq ?"
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.Cd device scbus0 at bt0
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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 a Buslogic/Mylex MultiMaster or compatible controller:
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.Pp
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.Bd -filled -offset indent
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.Bl -column "BT-956CD " "ISA " "Commands " Description
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MultiMaster "W" Series Host Adapters:
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.Pp
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.Em "Adapter Bus Commands Description"
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BT-948 PCI 192 ULtra SCSI-3
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BT-958 PCI 192 Wide ULtra SCSI-3
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BT-958D PCI 192 Wide Differential ULtra SCSI-3
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.El
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.Bl -column "BT-956CD " "ISA " "Commands " Description
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MultiMaster "C" Series Host Adapters:
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.Pp
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.Em "Adapter Bus Commands Description"
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BT-946C PCI 100 Fast SCSI-2
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BT-956C PCI 100 Wide Fast SCSI-2
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BT-956CD PCI 100 Wide Differential Fast SCSI-2
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BT-445C VLB 100 Fast SCSI-2
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BT-747C EISA 100 Fast SCSI-2
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BT-757C EISA 100 Wide Fast SCSI-2
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BT-757CD EISA 100 Wide Differential Fast SCSI-2
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BT-545C ISA 50 Fast SCSI-2
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BT-540CF ISA 50 Fast SCSI-2
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.El
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.Bl -column "BT-956CD " "ISA " "Commands " Description
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MultiMaster "S" Series Host Adapters:
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.Pp
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.Em "Adapter Bus Commands Description"
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BT-445S VLB 30 Fast SCSI-2
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BT-747S EISA 30 Fast SCSI-2
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BT-747D EISA 30 Differential Fast SCSI-2
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BT-757S EISA 30 Wide Fast SCSI-2
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BT-757D EISA 30 Wide Differential Fast SCSI-2
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BT-545S ISA 30 Fast SCSI-2
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BT-542D ISA 30 Differential Fast SCSI-2
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BT-742A EISA 30 SCSI-2 (742A revision H)
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BT-542B ISA 30 SCSI-2 (542B revision H)
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.El
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.Bl -column "BT-956CD " "ISA " "Commands " Description
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MultiMaster "A" Series Host Adapters:
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.Pp
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.Em "Adapter Bus Commands Description"
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BT-742A EISA 30 SCSI-2 (742A revisions A - G)
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BT-542B ISA 30 SCSI-2 (542B revisions A - G)
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.El
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.Ed
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.Pp
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AMI FastDisk Host Adapters that are true BusLogic MultiMaster clones are also
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supported by this driver.
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.Pp
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Tagged queueing is supported on 'W' series adapters, 'C' series adapters
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with firmware of rev 4.42 and higher, and 'S' series adapters with firmware
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of rev 3.35 and higher.
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.Pp
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Boards with certain firmware revisions may lock up under heavy load to
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certain devices, especially if tagged queueing is used. Should you encounter
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a problem with your adapter, contact Mylex technical support and ensure you
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have the latest firmware for your controller.
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.Sh SEE ALSO
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.Xr cd 4 ,
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.Xr da 4 ,
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.Xr sa 4 ,
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.Xr scsi 4
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.Sh AUTHORS
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.An Julian Elischer
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wrote a driver for the Multimaster cards that appeared in the 386BSD
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patch kit. The driver was rewritten by
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.An Justin T. Gibbs
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to take advantage of new board features and work with the CAM SCSI framework in
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.Fx 3.0 .
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.Pp
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Special thanks to
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.An Leonard N. Zubkoff
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for writing such a complete and well documented Mylex/BusLogic MultiMaster
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driver for Linux. Support in this driver for the wide range of MultiMaster
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controllers and firmware revisions, with their otherwise undocumented quirks,
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would not have been possible without his efforts.
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.Sh FILES
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.Bl -tag -width /usr/share/man0/template.doc -compact
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.It Pa sys/dev/buslogic/bt.c
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Core Driver Implementation
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.It Pa sys/dev/buslogic/btreg.h
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MultiMaster Register Set and Core Driver Data Structures
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.It Pa sys/pci/bt_pci.c
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PCI Bus Driver Attachment
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.It Pa sys/i386/eisa/bt_eisa.c
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EISA Bus Driver Attachment
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.It Pa sys/i386/isa/bt_isa.c
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ISA/VL Bus Driver Attachment
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.El
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.Sh HISTORY
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The
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.Nm
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driver first appeared in the 386BSD patch kit.
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