netdev - [PATCH net-next 0/9] mlxsw: Add support for physical hardware clock

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Message-Id: <20190603121244.3398-1-idosch@idosch.org>
Date:   Mon,  3 Jun 2019 15:12:35 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, richardcochran@...il.com, jiri@...lanox.com,
        shalomt@...lanox.com, petrm@...lanox.com, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 0/9] mlxsw: Add support for physical hardware clock

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

This is the first of about four patchsets that add PTP support in mlxsw
for the Spectrum-1 ASIC.

This patchset exposes the physical hardware clock, while subsequent
patchsets will add timestamping support and mlxsw tracepoints for
debugging and testing.

Shalom says:

This patchset adds support for physical hardware clock for Spectrum-1
ASIC only.

Patches #1, #2 and #3 add the ability to query the free running clock
PCI address.

Patches #4 and #5 add two new register, the Management UTC Register and
the Management Pulse Per Second Register.

Patch #6 publishes scaled_ppm_to_ppb() to allow drivers to use it.

Patch #7 adds the physical hardware clock operations.

Patch #8 initializes the physical hardware clock.

Patch #9 adds a selftest for testing the PTP physical hardware clock.

Shalom Toledo (9):
  mlxsw: cmd: Free running clock PCI BAR and offsets via query firmware
  mlxsw: core: Add a new interface for reading the hardware free running
    clock
  mlxsw: pci: Query free running clock PCI BAR and offsets
  mlxsw: reg: Add Management UTC Register
  mlxsw: reg: Add Management Pulse Per Second Register
  ptp: ptp_clock: Publish scaled_ppm_to_ppb
  mlxsw: spectrum_ptp: Add implementation for physical hardware clock
    operations
  mlxsw: spectrum: PTP physical hardware clock initialization
  selftests: ptp: Add Physical Hardware Clock test

 drivers/net/ethernet/mellanox/mlxsw/Makefile  |   1 +
 drivers/net/ethernet/mellanox/mlxsw/cmd.h     |  12 +
 drivers/net/ethernet/mellanox/mlxsw/core.c    |  12 +
 drivers/net/ethernet/mellanox/mlxsw/core.h    |   8 +-
 drivers/net/ethernet/mellanox/mlxsw/pci.c     |  32 +++
 drivers/net/ethernet/mellanox/mlxsw/pci_hw.h  |   3 +
 drivers/net/ethernet/mellanox/mlxsw/reg.h     | 103 +++++++
 .../net/ethernet/mellanox/mlxsw/spectrum.c    |  36 +++
 .../net/ethernet/mellanox/mlxsw/spectrum.h    |   3 +
 .../ethernet/mellanox/mlxsw/spectrum_ptp.c    | 267 ++++++++++++++++++
 .../ethernet/mellanox/mlxsw/spectrum_ptp.h    |  44 +++
 drivers/ptp/ptp_clock.c                       |   5 +-
 include/linux/ptp_clock_kernel.h              |   8 +
 tools/testing/selftests/ptp/phc.sh            | 166 +++++++++++
 14 files changed, 697 insertions(+), 3 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
 create mode 100644 drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h
 create mode 100755 tools/testing/selftests/ptp/phc.sh

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2.20.1