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Based on kernel version 3.8. Page generated on 2013-02-20 22:02 EST.

1	Released 1994-06-13
2	
3	
4		CONTENTS:
5	
6		1. Introduction.
7		2. License.
8		3. Files in this release.
9		4. Installation.
10		5. Problems and tuning.
11		6. Using the drivers with earlier releases.
12		7. Acknowledgments.
13	
14	
15		1. INTRODUCTION.
16	
17		This is a set of Ethernet drivers for the D-Link DE-600/DE-620
18		pocket adapters, for the parallel port on a Linux based machine.
19		Some adapter "clones" will also work.  Xircom is _not_ a clone...
20		These drivers _can_ be used as loadable modules,
21		and were developed for use on Linux 1.1.13 and above.
22		For use on Linux 1.0.X, or earlier releases, see below.
23	
24		I have used these drivers for NFS, ftp, telnet and X-clients on
25		remote machines. Transmissions with ftp seems to work as
26		good as can be expected (i.e. > 80k bytes/sec) from a
27		parallel port...:-)  Receive speeds will be about 60-80% of this.
28		Depending on your machine, somewhat higher speeds can be achieved.
29	
30		All comments/fixes to Bjorn Ekwall (bj0rn@blox.se).
31	
32	
33		2. LICENSE.
34	
35		This program is free software; you can redistribute it
36		and/or modify it under the terms of the GNU General Public
37		License as published by the Free Software Foundation; either
38		version 2, or (at your option) any later version.
39	
40		This program is distributed in the hope that it will be
41		useful, but WITHOUT ANY WARRANTY; without even the implied
42		warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
43		PURPOSE. See the GNU General Public License for more
44		details.
45	
46		You should have received a copy of the GNU General Public
47		License along with this program; if not, write to the Free
48		Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
49		02139, USA.
50	
51	
52		3. FILES IN THIS RELEASE.
53	
54		README.DLINK  This file.
55		de600.c       The Source (may it be with You :-) for the DE-600
56		de620.c       ditto for the DE-620
57		de620.h       Macros for de620.c
58	
59		If you are upgrading from the d-link tar release, there will
60		also be a "dlink-patches" file that will patch Linux 1.1.18:
61			linux/drivers/net/Makefile
62			linux/drivers/net/CONFIG
63			linux/drivers/net/MODULES
64			linux/drivers/net/Space.c
65			linux/config.in
66		Apply the patch by:
67		"cd /usr/src; patch -p0 < linux/drivers/net/dlink-patches"
68		The old source, "linux/drivers/net/d_link.c", can be removed.
69	
70	
71		4. INSTALLATION.
72	
73		o Get the latest net binaries, according to current net.wisdom.
74	
75		o Read the NET-2 and Ethernet HOWTOs and modify your setup.
76	
77		o If your parallel port has a strange address or irq,
78		  modify "linux/drivers/net/CONFIG" accordingly, or adjust
79		  the parameters in the "tuning" section in the sources.
80	
81		If you are going to use the drivers as loadable modules, do _not_
82		enable them while doing "make config", but instead make sure that
83		the drivers are included in "linux/drivers/net/MODULES".
84	
85		If you are _not_ going to use the driver(s) as loadable modules,
86		but instead have them included in the kernel, remember to enable
87		the drivers while doing "make config".
88	
89		o To include networking and DE600/DE620 support in your kernel:
90		  # cd /linux
91		  (as modules:)
92		  #  make config (answer yes on CONFIG_NET and CONFIG_INET)
93		  (else included in the kernel:)
94		  #  make config (answer yes on CONFIG _NET, _INET and _DE600 or _DE620)
95		  # make clean
96		  # make zImage (or whatever magic you usually do)
97	
98		o I use lilo to boot multiple kernels, so that I at least
99		  can have one working kernel :-). If you do too, append
100		  these lines to /etc/lilo/config:
101	
102			image = /linux/zImage
103			label = newlinux
104			root = /dev/hda2 (or whatever YOU have...)
105	
106		  # /etc/lilo/install
107	
108		o Do "sync" and reboot the new kernel with a D-Link
109		  DE-600/DE-620 pocket adapter connected.
110	
111		o The adapter can be configured with ifconfig eth?
112		  where the actual number is decided by the kernel
113		  when the drivers are initialized.
114	
115	
116		5. "PROBLEMS" AND TUNING,
117	
118		o If you see error messages from the driver, and if the traffic
119		  stops on the adapter, try to do "ifconfig" and "route" once
120		  more, just as in "rc.inet1".  This should take care of most
121		  problems, including effects from power loss, or adapters that
122		  aren't connected to the printer port in some way or another.
123		  You can somewhat change the behaviour by enabling/disabling
124		  the macro  SHUTDOWN_WHEN_LOST  in the "tuning" section.
125		  For the DE-600 there is another macro, CHECK_LOST_DE600,
126		  that you might want to read about in the "tuning" section.
127	
128		o Some machines have trouble handling the parallel port and
129		  the adapter at high speed. If you experience problems:
130	
131		  DE-600:
132		  - The adapter is not recognized at boot, i.e. an Ethernet
133		    address of 00:80:c8:... is not shown, try to add another
134		      "; SLOW_DOWN_IO"
135		    at DE600_SLOW_DOWN in the "tuning" section. As a last resort,
136		    uncomment: "#define REALLY_SLOW_IO" (see <asm/io.h> for hints).
137	
138		  - You experience "timeout" messages: first try to add another
139		      "; SLOW_DOWN_IO"
140		    at DE600_SLOW_DOWN in the "tuning" section, _then_ try to
141		    increase the value (original value: 5) at
142		    "if (tickssofar < 5)" near line 422.
143	
144		  DE-620:
145		  - Your parallel port might be "sluggish".  To cater for
146		    this, there are the macros LOWSPEED and READ_DELAY/WRITE_DELAY
147		    in the "tuning" section. Your first step should be to enable
148		    LOWSPEED, and after that you can "tune" the XXX_DELAY values.
149	
150		o If the adapter _is_ recognized at boot but you get messages
151		  about "Network Unreachable", then the problem is probably
152		  _not_ with the driver.  Check your net configuration instead
153		  (ifconfig and route) in "rc.inet1".
154	
155		o There is some rudimentary support for debugging, look at
156		  the source. Use "-DDE600_DEBUG=3" or "-DDE620_DEBUG=3"
157		  when compiling, or include it in "linux/drivers/net/CONFIG".
158		  IF YOU HAVE PROBLEMS YOU CAN'T SOLVE: PLEASE COMPILE THE DRIVER
159		  WITH DEBUGGING ENABLED, AND SEND ME THE RESULTING OUTPUT!
160	
161	
162		6. USING THE DRIVERS WITH EARLIER RELEASES.
163	
164		The later 1.1.X releases of the Linux kernel include some
165		changes in the networking layer (a.k.a. NET3). This affects
166		these drivers in a few places.  The hints that follow are
167		_not_ tested by me, since I don't have the disk space to keep
168		all releases on-line.
169		Known needed changes to date:
170		- release patchfile: some patches will fail, but they should
171		  be easy to apply "by hand", since they are trivial.
172		  (Space.c: d_link_init() is now called de600_probe())
173		- de600.c: change  "mark_bh(NET_BH)" to  "mark_bh(INET_BH)".
174		- de620.c: (maybe) change the code around "netif_rx(skb);" to be
175			   similar to the code around "dev_rint(...)" in de600.c
176	
177	
178		7. ACKNOWLEDGMENTS.
179	
180		These drivers wouldn't have been done without the base
181		(and support) from Ross Biro, and D-Link Systems Inc.
182		The driver relies upon GPL-ed source from D-Link Systems Inc.
183		and from Russel Nelson at Crynwr Software <nelson@crynwr.com>.
184	
185		Additional input also from:
186		Donald Becker <becker@super.org>, Alan Cox <A.Cox@swansea.ac.uk>
187		and Fred N. van Kempen <waltje@uWalt.NL.Mugnet.ORG>
188	
189		DE-600 alpha release primary victim^H^H^H^H^H^Htester:
190		- Erik Proper <erikp@cs.kun.nl>.
191		Good input also from several users, most notably
192		- Mark Burton <markb@ordern.demon.co.uk>.
193	
194		DE-620 alpha release victims^H^H^H^H^H^H^Htesters:
195		- J. Joshua Kopper <kopper@rtsg.mot.com>
196		- Olav Kvittem <Olav.Kvittem@uninett.no>
197		- Germano Caronni <caronni@nessie.cs.id.ethz.ch>
198		- Jeremy Fitzhardinge <jeremy@suite.sw.oz.au>
199	
200	
201		Happy hacking!
202	
203		Bjorn Ekwall == bj0rn@blox.se
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