10 Gigabit Ethernet devices from Intel do not take VLAN tags into account when
calculating packet size while Gigabit Ethernet devices do so for jumbo frames.

Implication:
When receiving packets with VLAN tags, the actual maximum size of useful
payload that Intel Gigabit Ethernet devices are able to receive is 4 bytes (or
8 bytes in the case of packets with extended VLAN tags) less than that of Intel
10 Gigabit Ethernet devices.

Resolution/Workaround:
Increase the configured maximum packet size when using Intel Gigabit Ethernet
devices.

Affected Environment/Platform:
All.

Driver/Module:
Poll Mode Driver (PMD).