Call for re(4) TSO/VLAN testers

Hi,

Attached patch adds TSO support code to re(4) and fixes several
nits in re(4).
 
o TSO support.
o Correctly set IFCAP_VLAN_HWCSUM as re(4) can do VLAN
  tagging/checksum offloading in hardware.
o Correctly set media header length for VLAN.
o Don't set RL_CFG1_FULLDUPLEX bit. The RL_CFG1_FULLDUPLEX bit in
  config register 1 is only valid on 8129.
o Alignment fixup code is required on strict-alignment architectures.
  Use __NO_STRICT_ALIGNMENT to determine whether the fixup is
  required.

With TSO you can see reduced system load while large file transfers
is in progress. Please test the patch and report any unusual things
you've found.
-- 
Regards,
Pyun YongHyeon