[dpdk-dev] [PATCH v4 0/2] introduce if_index in device info

[liljegren.mats2 at gmail.com]

Changes since v1:
- Split into two patches: Generic and pcap specific.
- Changed interface name to interface index

Changes since v2:
- Interface index is now unsigned
- Value 0 used as error rather than 0
- Added missing include of net/if.h in rte_eth_pcap.c
- Declared struct args_dict in rte_eth_pcap.h

Changes since v3:
- Changed commit messages
- Removed compiler warning about unused variable pair