Make it a tad easier to base other encapsulation schemes on this driver by restoring the ifv_proto field in the vlan softc and putting it to use this time.  It's a good companion for ifv_encaplen, which has already been used throughout this driver.
Make it a tad easier to base other encapsulation schemes on this driver
by restoring the ifv_proto field in the vlan softc and putting it to use
this time.  It's a good companion for ifv_encaplen, which has already been
used throughout this driver.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase