2 .\" Copyright (c) 1994 Jordan Hubbard
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
13 .\" 3. The name of the author may not be used to endorse or promote products
14 .\" derived from this software without specific prior written permission
16 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 .\" $FreeBSD: src/share/man/man4/bt.4,v 1.10.4.6 2001/10/01 13:07:23 dd Exp $
28 .\" $DragonFly: src/share/man/man4/bt.4,v 1.4 2006/05/26 19:39:39 swildner Exp $
35 .Nd Buslogic/Mylex MultiMaster SCSI host adapter driver
37 .Cd "device bt0 at isa? port ? irq ?"
38 .Cd device scbus0 at bt0
40 This driver provides access to the
42 bus connected to a Buslogic/Mylex MultiMaster or compatible controller:
44 .Bd -ragged -offset indent
45 .Bl -column "BT-956CD " "ISA " "Commands " Description
46 MultiMaster "W" Series Host Adapters:
48 .Em "Adapter Bus Commands Description"
49 BT-948 PCI 192 ULtra SCSI-3
50 BT-958 PCI 192 Wide ULtra SCSI-3
51 BT-958D PCI 192 Wide Differential ULtra SCSI-3
53 .Bl -column "BT-956CD " "ISA " "Commands " Description
54 MultiMaster "C" Series Host Adapters:
56 .Em "Adapter Bus Commands Description"
57 BT-946C PCI 100 Fast SCSI-2
58 BT-956C PCI 100 Wide Fast SCSI-2
59 BT-956CD PCI 100 Wide Differential Fast SCSI-2
60 BT-445C VLB 100 Fast SCSI-2
61 BT-747C EISA 100 Fast SCSI-2
62 BT-757C EISA 100 Wide Fast SCSI-2
63 BT-757CD EISA 100 Wide Differential Fast SCSI-2
64 BT-545C ISA 50 Fast SCSI-2
65 BT-540CF ISA 50 Fast SCSI-2
67 .Bl -column "BT-956CD " "ISA " "Commands " Description
68 MultiMaster "S" Series Host Adapters:
70 .Em "Adapter Bus Commands Description"
71 BT-445S VLB 30 Fast SCSI-2
72 BT-747S EISA 30 Fast SCSI-2
73 BT-747D EISA 30 Differential Fast SCSI-2
74 BT-757S EISA 30 Wide Fast SCSI-2
75 BT-757D EISA 30 Wide Differential Fast SCSI-2
76 BT-545S ISA 30 Fast SCSI-2
77 BT-542D ISA 30 Differential Fast SCSI-2
78 BT-742A EISA 30 SCSI-2 (742A revision H)
79 BT-542B ISA 30 SCSI-2 (542B revision H)
81 .Bl -column "BT-956CD " "ISA " "Commands " Description
82 MultiMaster "A" Series Host Adapters:
84 .Em "Adapter Bus Commands Description"
85 BT-742A EISA 30 SCSI-2 (742A revisions A - G)
86 BT-542B ISA 30 SCSI-2 (542B revisions A - G)
90 AMI FastDisk Host Adapters that are true BusLogic MultiMaster clones are also
91 supported by this driver.
93 Tagged queueing is supported on 'W' series adapters, 'C' series adapters
94 with firmware of rev 4.42 and higher, and 'S' series adapters with firmware
95 of rev 3.35 and higher.
97 Boards with certain firmware revisions may lock up under heavy load to
98 certain devices, especially if tagged queueing is used. Should you encounter
99 a problem with your adapter, contact Mylex technical support and ensure you
100 have the latest firmware for your controller.
102 .Bl -tag -width /usr/share/man0/template.doc -compact
103 .It Pa /sys/dev/disk/buslogic/bt.c
104 Core Driver Implementation
105 .It Pa /sys/dev/disk/buslogic/btreg.h
106 MultiMaster Register Set and Core Driver Data Structures
107 .It Pa /sys/dev/disk/buslogic/bt_pci.c
108 PCI Bus Driver Attachment
109 .It Pa /sys/dev/disk/buslogic/bt_eisa.c
110 EISA Bus Driver Attachment
111 .It Pa /sys/dev/disk/buslogic/bt_isa.c
112 ISA/VL Bus Driver Attachment
122 driver first appeared in the
128 wrote a driver for the Multimaster cards that appeared in the
130 patch kit. The driver was rewritten by
132 to take advantage of new board features and work with the CAM SCSI framework in
136 .An Leonard N. Zubkoff
137 for writing such a complete and well documented Mylex/BusLogic MultiMaster
138 driver for Linux. Support in this driver for the wide range of MultiMaster
139 controllers and firmware revisions, with their otherwise undocumented quirks,
140 would not have been possible without his efforts.