Re: [PATCH] Making de2104x working with BNC connection on 21040 chipset

On Thu, Jan 12, 2012 at 5:52 PM, Michael Mueller [off-list ref] wrote:

Hi,

while I recently updated an older machine to the latest Debian
distribution which included updating the kernel from 2.4.x to 3.0 the
tulip driver did stop working for my network card. The replacement
driver de2104x did initialize the network interfaces but no transmission
was possible.

Did you try the original de4x5.c driver?   I believe it was all that existed
back in the 2.4 vintage, and I think it was kept around just to keep old
cards that didn't like the "new" tulip driver working.

Paul.

Digging into it I found the de2104x driver just assumes there is no BNC
transceiver on a card using the 21040 chipset. So I extracted the
correct configuration values from the old tulip driver and removed some
sanity checking which denied setting the transceiver to BNC. Now I can
use the driver by just setting the correct transceiver using ethtool.

A patch against 3.0 is appended. It should apply against more recent
versions too since there was not the lot happening for this old driver,
but for the relocation of the files from drivers/net/tulip to
drivers/net/ethernet/dec/tulip.


Michael