linux-kernel - [PATCH net-next 0/5] net: flower: validate encapsulation control flags

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Date: Sun,  9 Jun 2024 17:33:50 +0000
From: Asbjørn Sloth Tønnesen <ast@...erby.net>
To: netdev@...r.kernel.org
Cc: Asbjørn Sloth Tønnesen <ast@...erby.net>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Edward Cree <ecree.xilinx@...il.com>,
	Martin Habets <habetsm.xilinx@...il.com>,
	linux-net-drivers@....com,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>,
	linux-rdma@...r.kernel.org,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	intel-wired-lan@...ts.osuosl.org,
	Louis Peens <louis.peens@...igine.com>,
	oss-drivers@...igine.com,
	linux-kernel@...r.kernel.org,
	Davide Caratti <dcaratti@...hat.com>,
	i.maximets@....org
Subject: [PATCH net-next 0/5] net: flower: validate encapsulation control flags

Now that all drivers properly rejects unsupported flower control flags
used with FLOW_DISSECTOR_KEY_CONTROL, then time has come to add similar
checks to the drivers supporting FLOW_DISSECTOR_KEY_ENC_CONTROL.

There are currently just 4 drivers supporting this key, and
3 of those currently doesn't validate encapsulated control flags.

Encapsulation control flags may currently be unused, but they should
still be validated by the drivers, so that drivers will properly
reject any new flags when they are introduced.

This series adds some helper functions, and implements them in all
4 drivers.

NB: It is currently discussed[1] to use encapsulation control flags
for tunnel flags instead of the new FLOW_DISSECTOR_KEY_ENC_FLAGS.

[1] https://lore.kernel.org/netdev/ZmFuxElwZiYJzBkh@dcaratti.users.ipa.redhat.com/

Asbjørn Sloth Tønnesen (5):
  flow_offload: add encapsulation control flag helpers
  sfc: use flow_rule_is_supp_enc_control_flags()
  net/mlx5e: flower: validate encapsulation control flags
  nfp: flower: validate encapsulation control flags
  ice: flower: validate encapsulation control flags

 drivers/net/ethernet/intel/ice/ice_tc_lib.c   |  4 +++
 .../ethernet/mellanox/mlx5/core/en/tc_tun.c   |  6 ++++
 .../ethernet/netronome/nfp/flower/offload.c   |  4 +++
 drivers/net/ethernet/sfc/tc.c                 |  5 +--
 include/net/flow_offload.h                    | 35 +++++++++++++++++++
 5 files changed, 50 insertions(+), 4 deletions(-)

-- 
2.45.1