netdev - [PATCH net-next v6 0/6] net: mscc: PTP Hardware Clock (PHC) support

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Message-Id: <20190812144537.14497-1-antoine.tenart@bootlin.com>
Date:   Mon, 12 Aug 2019 16:45:31 +0200
From:   Antoine Tenart <antoine.tenart@...tlin.com>
To:     davem@...emloft.net, richardcochran@...il.com,
        alexandre.belloni@...tlin.com, UNGLinuxDriver@...rochip.com
Cc:     Antoine Tenart <antoine.tenart@...tlin.com>,
        netdev@...r.kernel.org, thomas.petazzoni@...tlin.com,
        allan.nielsen@...rochip.com, andrew@...n.ch
Subject: [PATCH net-next v6 0/6] net: mscc: PTP Hardware Clock (PHC) support

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.

Thanks!
Antoine

Since v5:
  - Made sure both the PTP interrupt and register bank were available to
    enable supporting h/w timestamping.
  - Added a check after a kzalloc.
  - Add Reviewed-by tags from Andrew.

Since v4:
  - Added SKBTX_IN_PROGRESS.
  - Fixed two xmas trees.
  - Rework the loop condition in ocelot_ptp_rdy_irq_handler.

Since v3:
  - Fixed a spin_unlock_irqrestore issue.

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 (6):
  Documentation/bindings: net: ocelot: document the PTP bank
  Documentation/bindings: net: ocelot: document the PTP ready IRQ
  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 +-
 drivers/net/ethernet/mscc/ocelot.c            | 401 +++++++++++++++++-
 drivers/net/ethernet/mscc/ocelot.h            |  49 ++-
 drivers/net/ethernet/mscc/ocelot_board.c      | 145 ++++++-
 drivers/net/ethernet/mscc/ocelot_ptp.h        |  41 ++
 drivers/net/ethernet/mscc/ocelot_regs.c       |  11 +
 6 files changed, 633 insertions(+), 34 deletions(-)
 create mode 100644 drivers/net/ethernet/mscc/ocelot_ptp.h

-- 
2.21.0