netdev - [PATCH net-next 00/14] mlxsw: Offload TBF

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Message-Id: <20200124132318.712354-1-idosch@idosch.org>
Date:   Fri, 24 Jan 2020 15:23:04 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, jhs@...atatu.com,
        xiyou.wangcong@...il.com, petrm@...lanox.com, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 00/14] mlxsw: Offload TBF

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

Petr says:

In order to allow configuration of shapers on Spectrum family of
machines, recognize TBF either as root Qdisc, or as a child of ETS or
PRIO. Configure rate of maximum shaper according to TBF rate setting,
and maximum shaper burst size according to TBF burst setting.

- Patches #1 and #2 make the TBF shaper suitable for offloading.
- Patches #3, #4 and #5 are refactoring aimed at easier support of leaf
  Qdiscs in general.
- Patches #6 to #10 gradually introduce TBF offload.
- Patches #11 to #14 add selftests.

Petr Machata (14):
  net: sched: sch_tbf: Don't overwrite backlog before dumping
  net: sched: Make TBF Qdisc offloadable
  mlxsw: spectrum_qdisc: Extract a per-TC stat function
  mlxsw: spectrum_qdisc: Add mlxsw_sp_qdisc_get_class_stats()
  mlxsw: spectrum_qdisc: Extract a common leaf unoffload function
  mlxsw: reg: Add max_shaper_bs to QoS ETS Element Configuration
  mlxsw: reg: Increase MLXSW_REG_QEEC_MAS_DIS
  mlxsw: spectrum: Add lowest_shaper_bs to struct mlxsw_sp
  mlxsw: spectrum: Configure shaper rate and burst size together
  mlxsw: spectrum_qdisc: Support offloading of TBF Qdisc
  selftests: Move two functions from mlxsw's qos_lib to lib
  selftests: forwarding: lib: Add helpers for busywaiting
  selftests: forwarding: lib: Allow reading TC rule byte counters
  selftests: mlxsw: Add a TBF selftest

 drivers/net/ethernet/mellanox/mlxsw/reg.h     |  19 +-
 .../net/ethernet/mellanox/mlxsw/spectrum.c    |  16 +-
 .../net/ethernet/mellanox/mlxsw/spectrum.h    |   5 +-
 .../ethernet/mellanox/mlxsw/spectrum_dcb.c    |   5 +-
 .../ethernet/mellanox/mlxsw/spectrum_qdisc.c  | 346 +++++++++++++++---
 include/linux/netdevice.h                     |   1 +
 include/net/pkt_cls.h                         |  22 ++
 net/sched/sch_tbf.c                           |  56 ++-
 .../selftests/drivers/net/mlxsw/qos_lib.sh    |  24 --
 .../drivers/net/mlxsw/sch_tbf_ets.sh          |   9 +
 .../drivers/net/mlxsw/sch_tbf_prio.sh         |   9 +
 .../drivers/net/mlxsw/sch_tbf_root.sh         |   9 +
 tools/testing/selftests/net/forwarding/lib.sh |  45 ++-
 .../selftests/net/forwarding/sch_tbf_core.sh  | 233 ++++++++++++
 .../selftests/net/forwarding/sch_tbf_ets.sh   |   6 +
 .../net/forwarding/sch_tbf_etsprio.sh         |  39 ++
 .../selftests/net/forwarding/sch_tbf_prio.sh  |   6 +
 .../selftests/net/forwarding/sch_tbf_root.sh  |  33 ++
 18 files changed, 793 insertions(+), 90 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh
 create mode 100644 tools/testing/selftests/net/forwarding/sch_tbf_core.sh
 create mode 100755 tools/testing/selftests/net/forwarding/sch_tbf_ets.sh
 create mode 100644 tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
 create mode 100755 tools/testing/selftests/net/forwarding/sch_tbf_prio.sh
 create mode 100755 tools/testing/selftests/net/forwarding/sch_tbf_root.sh

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