diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/networking/3c505.txt |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'Documentation/networking/3c505.txt')
-rw-r--r-- | Documentation/networking/3c505.txt | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/networking/3c505.txt b/Documentation/networking/3c505.txt new file mode 100644 index 000000000000..b9d5b7230118 --- /dev/null +++ b/Documentation/networking/3c505.txt | |||
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1 | The 3Com Etherlink Plus (3c505) driver. | ||
2 | |||
3 | This driver now uses DMA. There is currently no support for PIO operation. | ||
4 | The default DMA channel is 6; this is _not_ autoprobed, so you must | ||
5 | make sure you configure it correctly. If loading the driver as a | ||
6 | module, you can do this with "modprobe 3c505 dma=n". If the driver is | ||
7 | linked statically into the kernel, you must either use an "ether=" | ||
8 | statement on the command line, or change the definition of ELP_DMA in 3c505.h. | ||
9 | |||
10 | The driver will warn you if it has to fall back on the compiled in | ||
11 | default DMA channel. | ||
12 | |||
13 | If no base address is given at boot time, the driver will autoprobe | ||
14 | ports 0x300, 0x280 and 0x310 (in that order). If no IRQ is given, the driver | ||
15 | will try to probe for it. | ||
16 | |||
17 | The driver can be used as a loadable module. See net-modules.txt for details | ||
18 | of the parameters it can take. | ||
19 | |||
20 | Theoretically, one instance of the driver can now run multiple cards, | ||
21 | in the standard way (when loading a module, say "modprobe 3c505 | ||
22 | io=0x300,0x340 irq=10,11 dma=6,7" or whatever). I have not tested | ||
23 | this, though. | ||
24 | |||
25 | The driver may now support revision 2 hardware; the dependency on | ||
26 | being able to read the host control register has been removed. This | ||
27 | is also untested, since I don't have a suitable card. | ||
28 | |||
29 | Known problems: | ||
30 | I still see "DMA upload timed out" messages from time to time. These | ||
31 | seem to be fairly non-fatal though. | ||
32 | The card is old and slow. | ||
33 | |||
34 | To do: | ||
35 | Improve probe/setup code | ||
36 | Test multicast and promiscuous operation | ||
37 | |||
38 | Authors: | ||
39 | The driver is mainly written by Craig Southeren, email | ||
40 | <craigs@ineluki.apana.org.au>. | ||
41 | Parts of the driver (adapting the driver to 1.1.4+ kernels, | ||
42 | IRQ/address detection, some changes) and this README by | ||
43 | Juha Laiho <jlaiho@ichaos.nullnet.fi>. | ||
44 | DMA mode, more fixes, etc, by Philip Blundell <pjb27@cam.ac.uk> | ||
45 | Multicard support, Software configurable DMA, etc., by | ||
46 | Christopher Collins <ccollins@pcug.org.au> | ||