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

Ido Schimmel
2020-01-24T13:24:04Z

From: Ido Schimmel <idosch@mellanox.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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2.24.1