Hi Lorenzo,
Hi Pablo,
On Tue, Oct 21, 2025 at 07:48:17PM +0200, Lorenzo Bianconi wrote:
Introduce SW acceleration for IPIP tunnels in the netfilter flowtable infrastructure. This series introduces basic infrastructure to accelerate other tunnel types (e.g. IP6IP6).
Would you be so kind to rebase this series on top of:
https://patchwork.ozlabs.org/project/netfilter-devel/list/?series=477081
That series should simplify the integration of your IPIP support.
ack, sure. I will do in v8.
Regards, Lorenzo
Thanks.
Changes in v7:
- Introduce sw acceleration for tx path of IPIP tunnels
- Rely on exact match during flowtable entry lookup
- Fix typos
- Link to v6: https://lore.kernel.org/r/20250818-nf-flowtable-ipip-v6-0-eda90442739c@kerne...
Changes in v6:
- Rebase on top of nf-next main branch
- Link to v5: https://lore.kernel.org/r/20250721-nf-flowtable-ipip-v5-0-0865af9e58c6@kerne...
Changes in v5:
- Rely on __ipv4_addr_hash() to compute the hash used as encap ID
- Remove unnecessary pskb_may_pull() in nf_flow_tuple_encap()
- Add nf_flow_ip4_ecanp_pop utility routine
- Link to v4: https://lore.kernel.org/r/20250718-nf-flowtable-ipip-v4-0-f8bb1c18b986@kerne...
Changes in v4:
- Use the hash value of the saddr, daddr and protocol of outer IP header as encapsulation id.
- Link to v3: https://lore.kernel.org/r/20250703-nf-flowtable-ipip-v3-0-880afd319b9f@kerne...
Changes in v3:
- Add outer IP header sanity checks
- target nf-next tree instead of net-next
- Link to v2: https://lore.kernel.org/r/20250627-nf-flowtable-ipip-v2-0-c713003ce75b@kerne...
Changes in v2:
- Introduce IPIP flowtable selftest
- Link to v1: https://lore.kernel.org/r/20250623-nf-flowtable-ipip-v1-1-2853596e3941@kerne...
Lorenzo Bianconi (3): net: netfilter: Add IPIP flowtable rx sw acceleration net: netfilter: Add IPIP flowtable tx sw acceleration selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest
include/linux/netdevice.h | 16 +++ include/net/netfilter/nf_flow_table.h | 26 +++++ net/ipv4/ipip.c | 29 +++++ net/netfilter/nf_flow_table_core.c | 10 ++ net/netfilter/nf_flow_table_ip.c | 118 ++++++++++++++++++++- net/netfilter/nft_flow_offload.c | 79 ++++++++++++-- .../selftests/net/netfilter/nft_flowtable.sh | 40 +++++++ 7 files changed, 307 insertions(+), 11 deletions(-)
base-commit: d1d7998df9d7d3ee20bcfc876065fa897b11506d change-id: 20250623-nf-flowtable-ipip-1b3d7b08d067
Best regards,
Lorenzo Bianconi lorenzo@kernel.org