Merge branch 'GREoIPV6'
Tom Herbert says: ==================== ipv6: Enable GUEoIPv6 and more fixes for v6 tunneling This patch set: - Fixes GRE6 to process translate flags correctly from configuration - Adds support for GSO and GRO for ip6ip6 and ip4ip6 - Add support for FOU and GUE in IPv6 - Support GRE, ip6ip6 and ip4ip6 over FOU/GUE - Fixes ip6_input to deal with UDP encapsulations - Some other minor fixes v2: - Removed a check of GSO types in MPLS - Define GSO type SKB_GSO_IPXIP6 and SKB_GSO_IPXIP4 (based on input from Alexander) - Don't define GSO types specifically for IP6IP6 and IP4IP6, above fix makes that unnecessary - Don't bother clearing encapsulation flag in UDP tunnel segment (another item suggested by Alexander). v3: - Address some minor comments from Alexander v4: - Rebase on changes to fix IP TX tunnels - Fix MTU issues in ip4ip6, ip6ip6 - Add test data for above v5: - Address feedback from Shmulik Ladkani regarding extension header code that does not return next header but in instead relies on returning value via nhoff. Solution here is to fix EH processing to return nexthdr value. - Refactored IPv4 encaps so that we won't need to create a ip6_tunnel_core.c when adding encap support IPv6. v6: - Fix build issues with regard to new GSO constants - FIx MTU calculation issues ip6_tunnel.c pointed out byt ALex - Add encap_hlen into headroom for GREv6 to work with FOU/GUE v7: - Added skb_set_inner_ipproto to ip4ip6 and ip6ip6 - Clarified max_headroom in ip6_tnl_xmit - Set features for IPv6 tunnels - Other cleanup suggested by Alexander - Above fixes throughput performance issues in ip4ip6 and ip6ip6, updated test results to reflect that Tested: Various cases of IP tunnels with netperf TCP_STREAM and TCP_RR. - IPv4/GRE/GUE/IPv6 with RCO 1 TCP_STREAM 6616 Mbps 200 TCP_RR 1244043 tps 141/243/446 90/95/99% latencies 86.61% CPU utilization - IPv6/GRE/GUE/IPv6 with RCO 1 TCP_STREAM 6940 Mbps 200 TCP_RR 1270903 tps 138/236/440 90/95/99% latencies 87.51% CPU utilization - IP6IP6 1 TCP_STREAM 5307 Mbps 200 TCP_RR 498981 tps 388/498/631 90/95/99% latencies 19.75% CPU utilization (1 CPU saturated) - IP6IP6/GUE with RCO 1 TCP_STREAM 5575 Mbps 200 TCP_RR 1233818 tps 143/244/451 90/95/99% latencies 87.57 CPU utilization - IP4IP6 1 TCP_STREAM 5235 Mbps 200 TCP_RR 763774 tps 250/318/466 90/95/99% latencies 35.25% CPU utilization (1 CPU saturated) - IP4IP6/GUE with RCO 1 TCP_STREAM 5337 Mbps 200 TCP_RR 1196385 tps 148/251/460 90/95/99% latencies 87.56 CPU utilization - GRE with keyid 200 TCP_RR 744173 tps 258/332/461 90/95/99% latencies 34.59% CPU utilization (1 CPU saturated) ==================== Signed-off-by: David S. Miller <email@example.com>