Similar to IPIP and IP6I6 tunnels, introduce sw acceleration for IPv4 over IPv6 and SIT tunnels in the netfilter flowtable infrastructure.
--- Changes in v2: - Fix MTU check in nf_flow_offload_forward() and in nf_flow_offload_ipv6_forward() - Add SIT sw acceleration support - Link to v1: https://lore.kernel.org/r/20260505-b4-flowtable-sw-accel-ip6ip-v1-0-9ac39ccc9...@kernel.org --- Lorenzo Bianconi (6): net: netfilter: Add ether_type to net_device_path_ctx net: netfilter: Add encap_proto to flow_offload_tunnel net: netfilter: Add IPv4 over IPv6 tunnel flowtable acceleration selftests: netfilter: nft_flowtable.sh: Add IPv4 over IPv6 flowtable selftest net: netfilter: Add SIT tunnel flowtable acceleration selftests: netfilter: nft_flowtable.sh: Add SIT flowtable selftest drivers/net/ethernet/airoha/airoha_ppe.c | 14 +- drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 13 +- include/linux/netdevice.h | 5 +- include/net/netfilter/nf_flow_table.h | 1 + net/core/dev.c | 6 +- net/ipv4/ipip.c | 1 + net/ipv6/ip6_tunnel.c | 6 +- net/ipv6/sit.c | 26 ++ net/netfilter/nf_flow_table_core.c | 14 +- net/netfilter/nf_flow_table_ip.c | 386 +++++++++++++-------- net/netfilter/nf_flow_table_path.c | 16 +- tools/testing/selftests/net/netfilter/config | 1 + .../selftests/net/netfilter/nft_flowtable.sh | 78 ++++- 13 files changed, 402 insertions(+), 165 deletions(-) --- base-commit: c1e5127b577c6b88fa48e532616932ae978528d5 change-id: 20260505-b4-flowtable-sw-accel-ip6ip-7101034cd147 Best regards, -- Lorenzo Bianconi <[email protected]>
