In message <1099043581.722893.1601.nullmailer@yamt.dyndns.org>,
YAMAMOTO Takashi writes:

>> sys/dev/ic/rtl8169plus.c	-- chipset driver
>> sys/dev/ic/rtl8169plusvar.h	-- functions exported to front-end attachments
>
>> PS if anyone has better suggestions for better filenames, this is the
>> time to make them.  
>
>what's "plus" in filenames?

re(4) supports ReaTek 8139C-Plus (not 8139C), 8169, 8169S, 8110S
(8110S is software-compatible with 8169S but pin-compatible with the
8100, an earlier 10/100 LOM product). The "S" indicates single-chip
with builtin realtek 1000baseT PHY.

rtl81x9.c is already taken for the 8129/8139/8193C backend driver.
Perhaps rtl8169.c?