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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 @@ -0,0 +1,46 @@ +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. See net-modules.txt for details +of the parameters it can take. + +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> |