From: William Tu
Date: Fri, 1 Dec 2017 15:26:07 -0800
> Similar to gre, vxlan, geneve, ipip tunnels, allow ip6gretap tunnels to
> operate in collect metadata mode. The first patch adds the support to
> ip6_gre.c. The second patch enables unsetting the csum for ipv6 tunnel,
> when using bpf_skb_
Similar to gre, vxlan, geneve, ipip tunnels, allow ip6gretap tunnels to
operate in collect metadata mode. The first patch adds the support to
ip6_gre.c. The second patch enables unsetting the csum for ipv6 tunnel,
when using bpf_skb_[gs]et_tunnel_key() helpers. Finally, the last patch
adds the ip