Description:
In packets provided by the PMD, some flags are missing. The application does
not have access to information provided by the hardware (packet is broadcast,
packet is multicast, packet is IPv4 and so on).

Implication:
The ol_flags field in the rte_mbuf structure is not correct and should not be
used.

Resolution/Workaround:
The application has to parse the Ethernet header itself to get the information,
which is slower.

Affected Environment/Platform:
All.

Driver/Module:
Poll Mode Driver (PMD).