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- The 3Com Etherlink Plus (3c505) driver.
- This driver now uses DMA. There is currently no support for PIO operation.
- The default DMA channel is 6; this is _not_ autoprobed, so you must
- make sure you configure it correctly. If loading the driver as a
- module, you can do this with "modprobe 3c505 dma=n". If the driver is
- linked statically into the kernel, you must either use an "ether="
- statement on the command line, or change the definition of ELP_DMA in 3c505.h.
- The driver will warn you if it has to fall back on the compiled in
- default DMA channel.
- If no base address is given at boot time, the driver will autoprobe
- ports 0x300, 0x280 and 0x310 (in that order). If no IRQ is given, the driver
- will try to probe for it.
- The driver can be used as a loadable module.
- Theoretically, one instance of the driver can now run multiple cards,
- in the standard way (when loading a module, say "modprobe 3c505
- io=0x300,0x340 irq=10,11 dma=6,7" or whatever). I have not tested
- this, though.
- The driver may now support revision 2 hardware; the dependency on
- being able to read the host control register has been removed. This
- is also untested, since I don't have a suitable card.
- Known problems:
- I still see "DMA upload timed out" messages from time to time. These
- seem to be fairly non-fatal though.
- The card is old and slow.
- To do:
- Improve probe/setup code
- Test multicast and promiscuous operation
- Authors:
- The driver is mainly written by Craig Southeren, email
- <craigs@ineluki.apana.org.au>.
- Parts of the driver (adapting the driver to 1.1.4+ kernels,
- IRQ/address detection, some changes) and this README by
- Juha Laiho <jlaiho@ichaos.nullnet.fi>.
- DMA mode, more fixes, etc, by Philip Blundell <pjb27@cam.ac.uk>
- Multicard support, Software configurable DMA, etc., by
- Christopher Collins <ccollins@pcug.org.au>
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