linux-kernel - [RFC net-next 00/22] ptp: get ready for 2038

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Message-Id: <cover.1426970294.git.richardcochran@gmail.com>
Date:	Sat, 21 Mar 2015 21:59:30 +0100
From:	Richard Cochran <richardcochran@...il.com>
To:	<netdev@...r.kernel.org>
Cc:	<linux-kernel@...r.kernel.org>, Amir Vadai <amirv@...lanox.com>,
	Ariel Elior <ariel.elior@...gic.com>,
	Arnd Bergmann <arnd@...aro.org>,
	Baolin Wang <baolin.wang@...aro.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Chris Metcalf <cmetcalf@...hip.com>,
	David Miller <davem@...emloft.net>,
	Frank Li <Frank.Li@...escale.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	John Stultz <john.stultz@...aro.org>,
	Luwei Zhou <b45643@...escale.com>,
	Matthew Vick <matthew.vick@...el.com>,
	Michael Chan <mchan@...adcom.com>,
	Prashant Sreedharan <prashant@...adcom.com>,
	Shradha Shah <sshah@...arflare.com>,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	Sonic Zhang <sonic.zhang@...log.com>,
	Stefan Sørensen 
	<stefan.sorensen@...ctralink.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tom Lendacky <thomas.lendacky@....com>
Subject: [RFC net-next 00/22] ptp: get ready for 2038

This series converts the core driver methods of the PTP Hardware Clock
(PHC) subsystem to use the 64 bit version of the timespec structure,
making the core API ready for the year 2038.

In addition, I reviewed how each driver and device represents the time
value at the hardware register level.  Most of the drivers are ready,
but a few will need some work before the year 2038, as shown:

   Patch   Driver
   ------------------------------------------------
   12      drivers/net/ethernet/intel/igb/igb_ptp.c
   15 ?    drivers/net/ethernet/sfc/ptp.c
   16      drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
   18 ?    drivers/net/ethernet/tile/tilegx.c
   19      drivers/net/phy/dp83640.c

The commit log message documents how each driver is ready or why it is
not ready.  For patches 15 and 18, I could not easily find out the
hardware representation of the time value, so I would ask the
maintainers for a review.

Thanks,
Richard

Richard Cochran (22):
  ptp: introduce get/set time methods with explicit 64 bit seconds.
  ptp: use the 64 bit gettime method for the SYS_OFFSET ioctl.
  ptp: blackfin: convert to the 64 bit get/set time methods.
  ptp: xgbe: convert to the 64 bit get/set time methods.
  ptp: bnx2x: convert to the 64 bit get/set time methods.
  ptp: tg3: convert to the 64 bit get/set time methods.
  ptp: fec: convert to the 64 bit get/set time methods.
  ptp: gianfar: convert to the 64 bit get/set time methods.
  ptp: e1000e: convert to the 64 bit get/set time methods.
  ptp: fm10k: convert to the 64 bit get/set time methods.
  ptp: i40e: convert to the 64 bit get/set time methods.
  ptp: igb: convert to the 64 bit get/set time methods.
  ptp: ixgbe: convert to the 64 bit get/set time methods.
  ptp: mlx4: convert to the 64 bit get/set time methods.
  ptp: sfc: convert to the 64 bit get/set time methods.
  ptp: stmmac: convert to the 64 bit get/set time methods.
  ptp: cpts: convert to the 64 bit get/set time methods.
  ptp: tilegx: convert to the 64 bit get/set time methods.
  ptp: dp83640: convert to the 64 bit get/set time methods.
  ptp: ixp46x: convert to the 64 bit get/set time methods.
  ptp: pch: convert to the 64 bit get/set time methods.
  ptp: remove 32 bit get/set methods.

 drivers/net/ethernet/adi/bfin_mac.c              |    8 ++---
 drivers/net/ethernet/amd/xgbe/xgbe-ptp.c         |   13 +++----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |    8 ++---
 drivers/net/ethernet/broadcom/tg3.c              |   10 +++---
 drivers/net/ethernet/freescale/fec_ptp.c         |    8 ++---
 drivers/net/ethernet/freescale/gianfar_ptp.c     |   13 +++----
 drivers/net/ethernet/intel/e1000e/ptp.c          |   16 ++++-----
 drivers/net/ethernet/intel/fm10k/fm10k_ptp.c     |   12 +++----
 drivers/net/ethernet/intel/i40e/i40e_ptp.c       |   26 +++++++-------
 drivers/net/ethernet/intel/igb/igb_ptp.c         |   41 +++++++++++-----------
 drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c     |   14 ++++----
 drivers/net/ethernet/mellanox/mlx4/en_clock.c    |   11 +++---
 drivers/net/ethernet/sfc/ptp.c                   |   22 ++++++------
 drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c |    8 ++---
 drivers/net/ethernet/ti/cpts.c                   |   12 +++----
 drivers/net/ethernet/tile/tilegx.c               |   16 +++++----
 drivers/net/phy/dp83640.c                        |   12 ++++---
 drivers/ptp/ptp_chardev.c                        |    8 ++---
 drivers/ptp/ptp_clock.c                          |   12 +++++--
 drivers/ptp/ptp_ixp46x.c                         |    8 ++---
 drivers/ptp/ptp_pch.c                            |    8 ++---
 include/linux/ptp_clock_kernel.h                 |   12 +++----
 22 files changed, 158 insertions(+), 140 deletions(-)

-- 
1.7.10.4

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