If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.

Important: There have been many reports that, with some motherboards
mixing an SMC Ultra and an Adaptec AHA154x SCSI card (or compatible,
such as some BusLogic models) causes corruption problems with many
operating systems. The Linux smc-ultra driver has a work-around for
this but keep it in mind if you have such a SCSI card and have
problems.

To compile this driver as a module, choose M here and read
Documentation/networking/net-modules.txt. The module
will be called smc-ultra.

source code:

drivers/net//