[PATCH net-next v2 0/3] mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer

[Ido Schimmel <idosch@idosch.org>]

From: Ido Schimmel <idosch@mellanox.com>

Shalom says:

While debugging packet loss towards the CPU, it is useful to be able to
query the CPU port's shared buffer quotas and occupancy.

Patch #1 prevents changing the CPU port's threshold and binding.

Patch #2 registers the CPU port with devlink.

Patch #3 adds the ability to query the CPU port's shared buffer quotas and
occupancy.

v2:

Patch #1:
* s/0/MLXSW_PORT_CPU_PORT/
* Assign "mlxsw_sp->ports[MLXSW_PORT_CPU_PORT" at the end of
  mlxsw_sp_cpu_port_create() to avoid NULL assignment on error path
* Add common functions for mlxsw_core_port_init/fini()

Patch #2:
* Move "changing CPU port's threshold and binding" check to a separate
  patch

Shalom Toledo (3):
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's
    shared buffer

 drivers/net/ethernet/mellanox/mlxsw/core.c    | 65 ++++++++++++++++---
 drivers/net/ethernet/mellanox/mlxsw/core.h    |  5 ++
 .../net/ethernet/mellanox/mlxsw/spectrum.c    | 46 +++++++++++++
 .../mellanox/mlxsw/spectrum_buffers.c         | 51 ++++++++++++---
 4 files changed, 150 insertions(+), 17 deletions(-)

-- 
2.21.0