From: Lorenzo Bianconi <lorenzo@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
David Ahern <dsahern@kernel.org>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Shuah Khan <shuah@kernel.org>,
Andrew Lunn <andrew+netdev@lunn.ch>, Phil Sutter <phil@nwl.cc>
Cc: Florian Westphal <fw@strlen.de>,
netdev@vger.kernel.org, netfilter-devel@vger.kernel.org,
coreteam@netfilter.org, linux-kselftest@vger.kernel.org,
Lorenzo Bianconi <lorenzo@kernel.org>
Subject: [PATCH nf-next v9 0/3] Add IPIP flowtable SW acceleration
Date: Fri, 07 Nov 2025 12:14:45 +0100 [thread overview]
Message-ID: <20251107-nf-flowtable-ipip-v9-0-7cbc4090dfcb@kernel.org> (raw)
Introduce SW acceleration for IPIP tunnels in the netfilter flowtable
infrastructure. This series introduces basic infrastructure to
accelerate other tunnel types (e.g. IP6IP6).
---
Changes in v9:
- Fixed IPIP tunnel offloading when VLAN encapsulation is enabled.
- Add IPIP tunnel over vlan self-test
- Remove wrong filed from flow_offload_tuple key
- Cosmetics
- Link to v8: https://lore.kernel.org/r/20251023-nf-flowtable-ipip-v8-0-5d5d8595c730@kernel.org
Changes in v8:
- Rebase on top of the following series (not yet applied)
https://patchwork.ozlabs.org/project/netfilter-devel/list/?series=477081
- Link to v7: https://lore.kernel.org/r/20251021-nf-flowtable-ipip-v7-0-a45214896106@kernel.org
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@kernel.org
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@kernel.org
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@kernel.org
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@kernel.org
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@kernel.org
Changes in v2:
- Introduce IPIP flowtable selftest
- Link to v1: https://lore.kernel.org/r/20250623-nf-flowtable-ipip-v1-1-2853596e3941@kernel.org
---
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 | 13 ++
include/net/netfilter/nf_flow_table.h | 18 +++
net/ipv4/ipip.c | 25 ++++
net/netfilter/nf_flow_table_core.c | 3 +
net/netfilter/nf_flow_table_ip.c | 135 +++++++++++++++++++--
net/netfilter/nf_flow_table_path.c | 84 +++++++++++--
.../selftests/net/netfilter/nft_flowtable.sh | 69 +++++++++++
7 files changed, 328 insertions(+), 19 deletions(-)
---
base-commit: 32e4b1bf1bbfe63e52e2fff7ade0aaeb805defe3
change-id: 20250623-nf-flowtable-ipip-1b3d7b08d067
Best regards,
--
Lorenzo Bianconi <lorenzo@kernel.org>
next reply other threads:[~2025-11-07 11:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-07 11:14 Lorenzo Bianconi [this message]
2025-11-07 11:14 ` [PATCH nf-next v9 1/3] net: netfilter: Add IPIP flowtable rx sw acceleration Lorenzo Bianconi
2025-11-07 11:14 ` [PATCH nf-next v9 2/3] net: netfilter: Add IPIP flowtable tx " Lorenzo Bianconi
2025-11-07 11:14 ` [PATCH nf-next v9 3/3] selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest Lorenzo Bianconi
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