[dpdk-dev] [PATCH v3 1/5] net/af_xdp: introduce AF XDP PMD driver
Stephen Hemminger
stephen at networkplumber.org
Thu Mar 21 16:32:58 CET 2019
On Thu, 21 Mar 2019 17:18:41 +0800
Xiaolong Ye <xiaolong.ye at intel.com> wrote:
> +
> + strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
> + if (ioctl(sock, SIOCGIFINDEX, &ifr))
> + goto error;
> +
> + if (ioctl(sock, SIOCGIFHWADDR, &ifr))
> + goto error;
> +
> + rte_memcpy(eth_addr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
> +
> + close(sock);
> + *if_index = if_nametoindex(if_name);
This seems confused:
- first you get ifindex with SIOCGIFINDEX, then you ignore the result
- then get MAC address.
- then use if_nametoindex() which does SIOCGIFINDEX internally
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