netdev - [PATCH v2 net-next 0/9] ethtool mm API consolidation

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Message-Id: <20230418111459.811553-1-vladimir.oltean@nxp.com>
Date:   Tue, 18 Apr 2023 14:14:50 +0300
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Michal Kubecek <mkubecek@...e.cz>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>,
        Petr Machata <petrm@...dia.com>,
        Danielle Ratson <danieller@...dia.com>,
        Pranavi Somisetty <pranavi.somisetty@....com>,
        Harini Katakam <harini.katakam@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Gerhard Engleder <gerhard@...leder-embedded.com>,
        Ferenc Fejes <ferenc.fejes@...csson.com>,
        Aaron Conole <aconole@...hat.com>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 net-next 0/9] ethtool mm API consolidation

This series consolidates the behavior of the 2 drivers that implement
the ethtool MAC Merge layer by making NXP ENETC commit its preemptible
traffic classes to hardware only when MM TX is active (same as Ocelot).

Then, after resolving an issue with the ENETC driver, it restricts user
space from entering 2 states which don't make sense:

- pmac-enabled off tx-enabled on  verify-enabled *
- pmac-enabled *   tx-enabled off verify-enabled on

Then, it introduces a selftest (ethtool_mm.sh) which puts everything
together and tests all valid configurations known to me.

This is simultaneously the v2 of "[PATCH net-next 0/2] ethtool mm API
improvements":
https://lore.kernel.org/netdev/20230415173454.3970647-1-vladimir.oltean@nxp.com/
which had caused some problems to openlldp. Those were solved in the
meantime, see:
https://github.com/intel/openlldp/commit/11171b474f6f3cbccac5d608b7f26b32ff72c651

and of "[RFC PATCH net-next] selftests: forwarding: add a test for MAC
Merge layer":
https://lore.kernel.org/netdev/20230210221243.228932-1-vladimir.oltean@nxp.com/

Petr Machata (2):
  selftests: forwarding: sch_tbf_*: Add a pre-run hook
  selftests: forwarding: generalize bail_on_lldpad from mlxsw

Vladimir Oltean (7):
  net: enetc: fix MAC Merge layer remaining enabled until a link down
    event
  net: enetc: report mm tx-active based on tx-enabled and verify-status
  net: enetc: only commit preemptible TCs to hardware when MM TX is
    active
  net: enetc: include MAC Merge / FP registers in register dump
  net: ethtool: mm: sanitize some UAPI configurations
  selftests: forwarding: introduce helper for standard ethtool counters
  selftests: forwarding: add a test for MAC Merge layer

 drivers/net/ethernet/freescale/enetc/enetc.c  |  23 +-
 drivers/net/ethernet/freescale/enetc/enetc.h  |   5 +-
 .../ethernet/freescale/enetc/enetc_ethtool.c  |  94 +++++-
 .../net/ethernet/freescale/enetc/enetc_hw.h   |   3 +
 net/ethtool/mm.c                              |  10 +
 .../drivers/net/mlxsw/qos_headroom.sh         |   3 +-
 .../selftests/drivers/net/mlxsw/qos_lib.sh    |  28 --
 .../selftests/drivers/net/mlxsw/qos_pfc.sh    |   3 +-
 .../selftests/drivers/net/mlxsw/sch_ets.sh    |   3 +-
 .../drivers/net/mlxsw/sch_red_core.sh         |   1 -
 .../drivers/net/mlxsw/sch_red_ets.sh          |   2 +-
 .../drivers/net/mlxsw/sch_red_root.sh         |   2 +-
 .../drivers/net/mlxsw/sch_tbf_ets.sh          |   6 +-
 .../drivers/net/mlxsw/sch_tbf_prio.sh         |   6 +-
 .../drivers/net/mlxsw/sch_tbf_root.sh         |   6 +-
 .../testing/selftests/net/forwarding/Makefile |   1 +
 .../selftests/net/forwarding/ethtool_mm.sh    | 288 ++++++++++++++++++
 tools/testing/selftests/net/forwarding/lib.sh |  60 ++++
 .../net/forwarding/sch_tbf_etsprio.sh         |   4 +
 .../selftests/net/forwarding/sch_tbf_root.sh  |   4 +
 20 files changed, 486 insertions(+), 66 deletions(-)
 create mode 100755 tools/testing/selftests/net/forwarding/ethtool_mm.sh

-- 
2.34.1