CFT: RTL8168C re(4) attach issue

[Pyun YongHyeon]

Hi,

There had been several reports that some revision of RTL8168C were
not able to access PHY which in turn resulted in device attach
failure. For instance re(4) used to show the following messages.
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00200000
re0: PHY write failed
re0: PHY write failed
re0: MII without any phy!

For users who suffered from these issues, please try re(4)/rl(4) at
the following URL and let me know how it goes.
http://people.freebsd.org/~yongari/re/if_re.c (copy it to /usr/usr/sys/dev/re/)
http://people.freebsd.org/~yongari/re/if_rlreg.h (copy it /usr/src/sys/pci/)
http://people.freebsd.org/~yongari/re/if_rl.c (copy it /usr/src/sys/pci/)

And rebuild re(4) and rl(4). Since the issue is not always happen
testers should do power recycle several times to verify the issue.

Thanks.
-- 
Regards,
Pyun YongHyeon