1 .. SPDX-License-Identifier: GPL-2.0
2
3 ==================
4 dc395x SCSI driver
5 ==================
6
7 Status
8 ------
9 The driver has been tested with CD-R and CD-R/
10 be safe to use. Testing with hard disks has no
11 great degree and caution should be exercised i
12 to use this driver with hard disks.
13
14 This driver is evolved from `the original 2.4
15 <https://web.archive.org/web/20140129181343/ht
16 Problems, questions and patches should be subm
17 mailing list <linux-scsi@vger.kernel.org>`_.
18
19 Parameters
20 ----------
21 The driver uses the settings from the EEPROM s
22 setup. If there is no EEPROM, the driver uses
23 Both can be overridden by command line paramet
24 parameters).
25
26 The following parameters are available:
27
28 safe
29 Default: 0, Acceptable values: 0 or 1
30
31 If safe is set to 1 then the adapter will u
32 ("safe") default settings. This sets:
33
34 shortcut for dc395x=7,4,9,15,2
35
36 adapter_id
37 Default: 7, Acceptable values: 0 to 15
38
39 Sets the host adapter SCSI ID.
40
41 max_speed
42 Default: 1, Acceptable value: 0 to 7
43
44 == ========
45 0 20 Mhz
46 1 12.2 Mhz
47 2 10 Mhz
48 3 8 Mhz
49 4 6.7 Mhz
50 5 5.8 Hhz
51 6 5 Mhz
52 7 4 Mhz
53 == ========
54
55 dev_mode
56 Bitmap for device configuration
57
58 DevMode bit definition:
59
60 === ======== ======== =================
61 Bit Val(hex) Val(dec) Meaning
62 === ======== ======== =================
63 0 0x01 1 Parity check
64 1 0x02 2 Synchronous Negot
65 2 0x04 4 Disconnection
66 3 0x08 8 Send Start comman
67 4 0x10 16 Tagged Command Qu
68 5 0x20 32 Wide Negotiation
69 === ======== ======== =================
70
71 adapter_mode
72 Bitmap for adapter configuration
73
74 AdaptMode bit definition
75
76 ===== ======== ======== =================
77 Bit Val(hex) Val(dec) Meaning
78 ===== ======== ======== =================
79 0 0x01 1 Support more than
80 1 0x02 2 Use DOS compatibl
81 2 0x04 4 Reset SCSI Bus on
82 3 0x08 8 Active Negation:
83 4 0x10 16 Immediate return
84 (*)5 0x20 32 Check for LUNs >=
85 ===== ======== ======== =================
86
87 tags
88 Default: 3, Acceptable values: 0-5
89
90 The number of tags is 1<<x, if x has been s
91
92 reset_delay
93 Default: 1, Acceptable values: 0-180
94
95 The seconds to not accept commands after a
96
97
98 For the built in driver the parameters should
99 dc395x. (eg "dc395x.safe=1")
100
101
102 Copyright
103 ---------
104 The driver is free software. It is protected b
105 License (GPL). Please read it, before using th
106 included in your kernel sources and with your
107 filename COPYING. If you don't have it, please
108 email.
109
110 Note: The GNU GPL says also something about wa
111 Please be aware the following: While we do my
112 reliable driver, there is a chance, that it wi
113 We refuse to take any responsibility for that.
114 and YOU USE IT AT YOUR OWN RESPONSIBILITY.
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