Call for testers: re(4) and RTL8168C/RTL8168CP/RTL8111C/RTL8111CP

[Pyun YongHyeon]

I have been working on supporting RealTek controllers above for
several weeks. These new controllers seems to use different
descriptor format as well as new registers to control jumbo frame.
Unfortunately no datasheets are available for these controllers so
I need feedbacks from these hardware owners. The patch I made added
basic support for checksum offload. ATM TSO and jumbo frame support
were disabled for these controllers.

I don't have any of these hardwares so if you have one of these
hardwares please give it try and let me know how it goes. Some
users reported success but I'd like to get more feedback because
re(4) supports too many variants and I don't like to break supports
for old RealTek hardwares.

The patch was generated against CURRENT but it should apply to
RELENG_7 too. You can find the patch at the following URL.

http://people.freebsd.org/~yongari/re/re.HEAD.20080607

Thanks.
-- 
Regards,
Pyun YongHyeon