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.
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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
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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
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29 .\" $FreeBSD: src/share/man/man4/ahd.4,v 1.2.2.1 2002/09/01 22:35:34 scottl Exp $
36 .Nd Adaptec PCI/PCI-X Ultra320 SCSI host adapter driver
38 For one or more PCI/PCI-X cards:
42 To compile in debugging code.
44 .Cd options AHD_DEBUG_OPTS=<bitmask of options>
45 .Cd options AHD_REG_PRETTY_PRINT
47 To configure one or more controllers to assume the target role:
48 .Cd options AHD_TMODE_ENABLE=<bitmask of units>
50 For one or more SCSI busses:
53 This driver provides access to the
55 bus(es) connected to Adaptec
60 These chips are found on many motherboards as well as the
64 Adaptec SCSI controller cards.
66 Driver features include support for narrow and wide busses,
67 fast, ultra, ultra2, ultra160, and ultra320 synchronous transfers,
68 packetized transfers, tagged queueing, 512 SCB's, and target mode.
72 option is used to control which diagnostic messages are printed to the
75 is enabled. Logically 'or' the following bits together:
77 .Bd -ragged -offset indent
78 .Bl -column "Value " Function
80 0x0001 Show miscellanious information
81 0x0002 Show sense data
82 0x0004 Show Serial EEPROM contents
83 0x0008 Show bus termination settings
84 0x0010 Show host memory usage
85 0x0020 Show SCSI protocol messages
86 0x0040 Show mode pointer of the chip register window
87 0x0080 Show selection timeouts
88 0x0100 Show FIFO usage messages
89 0x0200 Show Queue Full status
90 0x0400 Show SCB queue status
91 0x0800 Show inbound packet information
92 0x1000 Show S/G list information
93 0x2000 Enable extra diagnostic code in the firmware
98 .Dq 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. However, it also bloats the compiled
101 size of the driver by approximately 215KB.
103 Individual controllers may be configured to operate in the target role
105 .Dq Dv AHD_TMODE_ENABLE
106 configuration option. The value assigned to this option should be a bitmap
107 of all units where target mode is desired.
108 For example, a value of 0x25, would enable target mode on units 0, 2, and 5.
109 Note that target mode is only supoprted for ultra160 speeds and below.
111 Per target configuration performed in the
113 menu, accessible at boot,
114 is honored by this driver.
115 This includes synchronous/asynchronous transfers,
116 maximum synchronous negotiation rate,
119 and the host adapter's SCSI ID.
122 The current generation of 79xx chips do not support target mode in Ultra320
124 Target mode in general has not been well tested in this driver.
137 sequencer-code assembler,
138 and the firmware running on the aic79xx chips was written by
139 .An Justin T. Gibbs .
140 This manual page is based on the
146 driver first appeared in