The 5719 A0 has a bug that manifests itself as if the chipset were
reordering memory writes.  The best known way to solve this problem is
to turn off LSO and jumbo frames.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>