[net-next,v3,0/8] net: mscc: PTP Hardware Clock (PHC) support

Message

Antoine Tenart July 24, 2019, 8:17 a.m. UTC

Hello,

This series introduces the PTP Hardware Clock (PHC) support to the Mscc
Ocelot switch driver. In order to make use of this, a new register bank
is added and described in the device tree, as well as a new interrupt.
The use this bank and interrupt was made optional in the driver for dt
compatibility reasons.

Patches 2 and 4 should probably go through the MIPS tree.

Thanks!
Antoine

Since v2:
  - Prevented from a possible infinite loop when reading the h/w
    timestamps.
  - s/GFP_KERNEL/GFP_ATOMIC/ in the Tx path.
  - Set rx_filter to HWTSTAMP_FILTER_PTP_V2_EVENT at probe.
  - Fixed s/w timestamping dependencies.
  - Added Paul Burton's Acked-by on patches 2 and 4.

Since v1:
  - Used list_for_each_safe() in ocelot_deinit().
  - Fixed a memory leak in ocelot_deinit() by calling
    dev_kfree_skb_any().
  - Fixed a locking issue in get_hwtimestamp().
  - Handled the NULL case of ptp_clock_register().
  - Added comments on optional dt properties.

Antoine Tenart (8):
  Documentation/bindings: net: ocelot: document the PTP bank
  MIPS: dts: mscc: describe the PTP register range
  Documentation/bindings: net: ocelot: document the PTP ready IRQ
  MIPS: dts: mscc: describe the PTP ready interrupt
  net: mscc: describe the PTP register range
  net: mscc: improve the frame header parsing readability
  net: mscc: remove the frame_info cpuq member
  net: mscc: PTP Hardware Clock (PHC) support

 .../devicetree/bindings/net/mscc-ocelot.txt   |  20 +-
 arch/mips/boot/dts/mscc/ocelot.dtsi           |   7 +-
 drivers/net/ethernet/mscc/ocelot.c            | 394 +++++++++++++++++-
 drivers/net/ethernet/mscc/ocelot.h            |  49 ++-
 drivers/net/ethernet/mscc/ocelot_board.c      | 144 ++++++-
 drivers/net/ethernet/mscc/ocelot_ptp.h        |  41 ++
 drivers/net/ethernet/mscc/ocelot_regs.c       |  11 +
 7 files changed, 634 insertions(+), 32 deletions(-)
 create mode 100644 drivers/net/ethernet/mscc/ocelot_ptp.h