netdev - [PATCH net mlxsw v2 0/2] mlxsw: spectrum: Fix ECN marking in tunnel decapsulation

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Message-Id: <20210329082927.347631-4-idosch@idosch.org>
Date:   Mon, 29 Mar 2021 11:29:25 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        petrm@...dia.com, liuhangbin@...il.com, toke@...hat.com,
        mlxsw@...dia.com, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net mlxsw v2 0/2] mlxsw: spectrum: Fix ECN marking in tunnel decapsulation

From: Ido Schimmel <idosch@...dia.com>

Patch #1 fixes a discrepancy between the software and hardware data
paths with regards to ECN marking after decapsulation. See the changelog
for a detailed description.

Patch #2 extends the ECN decap test to cover all possible combinations
of inner and outer ECN markings. The test passes over both data paths.

v2:
* Only set ECT(1) if inner is ECT(0)
* Introduce a new helper to determine inner ECN. Share it between NVE
  and IP-in-IP tunnels
* Extend the selftest

Ido Schimmel (2):
  mlxsw: spectrum: Fix ECN marking in tunnel decapsulation
  selftests: forwarding: vxlan_bridge_1d: Add more ECN decap test cases

 drivers/net/ethernet/mellanox/mlxsw/spectrum.h    | 15 +++++++++++++++
 .../net/ethernet/mellanox/mlxsw/spectrum_ipip.c   |  7 +++----
 .../net/ethernet/mellanox/mlxsw/spectrum_nve.c    |  7 +++----
 .../selftests/net/forwarding/vxlan_bridge_1d.sh   | 13 ++++++++++++-
 4 files changed, 33 insertions(+), 9 deletions(-)

-- 
2.30.2