2 .\" Copyright (c) 1995, 1996, 1997, 1998, 2000
3 .\" Justin T. Gibbs. All rights reserved.
5 .\" Scott Long. All rights reserved.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
10 .\" 1. Redistributions of source code must retain the above copyright
11 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
15 .\" 3. The name of the author may not be used to endorse or promote products
16 .\" derived from this software without specific prior written permission.
18 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 .Nd Adaptec PCI/PCI-X Ultra320 SCSI host adapter driver
38 To compile this driver into the kernel,
39 place the following lines in your
40 kernel configuration file:
41 .Bd -ragged -offset indent
46 To compile in debugging code:
48 .Cd options AHD_DEBUG_OPTS=<bitmask of options>
49 .Cd options AHD_REG_PRETTY_PRINT
51 To configure one or more controllers to assume the target role:
52 .Cd options AHD_TMODE_ENABLE=<bitmask of units>
55 Alternatively, to load the driver as a
56 module at boot time, place the following line in
58 .Bd -literal -offset indent
62 This driver provides access to the
64 bus(es) connected to Adaptec
68 Driver features include support for narrow and wide busses,
69 fast, ultra, ultra2, ultra160, and ultra320 synchronous transfers,
70 packetized transfers, tagged queueing, 512 SCB's, and target mode.
74 option is used to control which diagnostic messages are printed to the
78 Logically OR the following bits together:
79 .Bl -column -offset indent Value Function
81 0x0001 Show miscellaneous information
82 0x0002 Show sense data
83 0x0004 Show Serial EEPROM contents
84 0x0008 Show bus termination settings
85 0x0010 Show host memory usage
86 0x0020 Show SCSI protocol messages
87 0x0040 Show mode pointer of the chip register window
88 0x0080 Show selection timeouts
89 0x0100 Show FIFO usage messages
90 0x0200 Show Queue Full status
91 0x0400 Show SCB queue status
92 0x0800 Show inbound packet information
93 0x1000 Show S/G list information
94 0x2000 Enable extra diagnostic code in the firmware
98 .Dv AHD_REG_PRETTY_PRINT
99 option compiles in support for human-readable bit definitions for each register
100 that is printed by the debugging code.
101 However, it also bloats the compiled
102 size of the driver by approximately 215KB.
104 Individual controllers may be configured to operate in the target role
107 configuration option.
108 The value assigned to this option should be a bitmap
109 of all units where target mode is desired.
110 For example, a value of 0x25 would enable target mode on units 0, 2, and 5.
111 Note that target mode is only supported for ultra160 speeds and below.
113 Per target configuration performed in the
115 menu, accessible at boot,
116 is honored by this driver.
117 This includes synchronous/asynchronous transfers,
118 maximum synchronous negotiation rate,
121 and the host adapter's
127 driver supports the following:
151 Many motherboards with on-board
164 driver first appeared in
171 sequencer-code assembler,
172 and the firmware running on the aic79xx chips was written by
173 .An Justin T. Gibbs .
174 This manual page is based on the
178 The current generation of 79xx chips do not support target mode in Ultra320
180 Target mode in general has not been well tested in this driver.