This patch enables the receive side processing to aggregate TCP packets within
the HEA device driver. It analyses the packets already received after an
interrupt arrived and forwards these as chains of SKBs for the same TCP
connection with modified header field. We have seen a lower CPU load and
improved throughput for small numbers of parallel TCP connections.
As this feature is considered as experimental it is switched off by default
and can be activated via a module parameter.
Some additional security checks have been added since the last posting.
Signed-off-by: Jan-Bernd Themann <themann@xxxxxxxxxx>