From: Ido Schimmel <ido...@mellanox.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
--
2.20.1
