- Make "ifconfig nfeX mtu xxx" work.
- Don't use jumbo frames by default for chips that support jumbo frames.
Jumbo frame pool is still allocated in case mtu is set above 1500.
Tested-by: "Rumko" <rumcic@gmail.com>
- Make number of RX descriptors tunable, hw.nfe.rx_ring_count, default
value seems to be too small if jumbo frames are used. Add a read-only
sysctl node hw.nfe.rx_ring_count, which reflects the value of the newly
added tunable.
Submitted-by: "Rumko" <rumcic@gmail.com> (w/ modification)