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* [PATCH V4 net-next 00/26] ethtool: support time stamping and phc clocks
@ 2012-04-04  8:59 Richard Cochran
  2012-04-04  8:59 ` [PATCH V4 net-next 01/26] phc: Add a method for obtaining the device index Richard Cochran
                   ` (26 more replies)
  0 siblings, 27 replies; 34+ messages in thread
From: Richard Cochran @ 2012-04-04  8:59 UTC (permalink / raw)
  To: netdev
  Cc: David Miller, Ben Hutchings, Martin Porter, Jacob Keller,
	Jeff Kirsher, John Ronciak, e1000-devel

* Changes in V4:
  - drop two patches requiring out of tree support
  - added Ben's Reviewed-by tag on two commit messages
* Changes in V3:
  - works without ethtool_ops
  - does not require special privileges
  - neaten user space tool output

Support for SO_TIMESTAMPING of network packets and PTP Hardware Clocks
has been expanding over the last year or two. In an ideal world, every
host would have exactly one PTP hardware clock, and every Ethernet MAC
would support SO_TIMESTAMPING on both the transmit and receive paths.
However, since we do not yet have full coverage for these features,
user space programs need a way to discover what a given interface
supports in these two areas.

* PTP Hardware Clocks

  The relationship between the network interfaces and the (possibly
  multiple) PHC devices is not discoverable except by knowing what
  hardware you have got and carefully looking into the kernel log.

* SO_TIMESTAMPING

  - Receive software time stamps are implemented in the stack
    and thus work for all MAC hardware.
  - Transmit software time stamps are only supported by a dozen
    drivers or so.
  - Some special devices support Tx/Rx time stamping in hardware.
  - None of this is discoverable except by looking into the kernel
    sources.

This series exposes the hardware and driver capabilities known to user
space via ethtool. 

Since the PHC code was first merged, this has become the number one
requested new feature.

The new feature has been tested on the following hardware:

igb       Hardware time stamping in the MAC (but patch awaits out of tree support)
dp83640   Hardware time stamping in the PHY
r8169     Software Tx time stamping in the MAC

Thanks,
Richard


Richard Cochran (26):
  phc: Add a method for obtaining the device index.
  ethtool: Introduce a method for getting time stamping capabilities.
  dp83640: Support the get_ts_info ethtool method.
  gianfar: Support the get_ts_info ethtool method.
  bfin_mac: Support the get_ts_info ethtool method.
  ixp4xx_eth: Support the get_ts_info ethtool method.
  ethtool: Add a common function for drivers with transmit time
    stamping.
  ax88796: Support the get_ts_info ethtool method.
  davinci_emac: Support the get_ts_info ethtool method.
  dnet: Support the get_ts_info ethtool method.
  etherh: Support the get_ts_info ethtool method.
  fec_mpc52xx: Support the get_ts_info ethtool method.
  fec: Support the get_ts_info ethtool method.
  fs_enet: Support the get_ts_info ethtool method.
  ll_temac: Support the get_ts_info ethtool method.
  macb: Support the get_ts_info ethtool method.
  mv643xx_eth: Support the get_ts_info ethtool method.
  pxa168_eth: Support the get_ts_info ethtool method.
  r6040: Support the get_ts_info ethtool method.
  r8169: Support the get_ts_info ethtool method.
  smsc911x: Support the get_ts_info ethtool method.
  smsc9420: Support the get_ts_info ethtool method.
  stmmac: Support the get_ts_info ethtool method.
  tg3: Support the get_ts_info ethtool method.
  ucc_geth: Support the get_ts_info ethtool method.
  usbnet: Support the get_ts_info ethtool method.

 arch/arm/mach-ixp4xx/include/mach/ixp46x_ts.h      |    3 +
 drivers/net/ethernet/8390/ax88796.c                |    1 +
 drivers/net/ethernet/8390/etherh.c                 |    1 +
 drivers/net/ethernet/adi/bfin_mac.c                |   20 +++++++
 drivers/net/ethernet/broadcom/tg3.c                |    1 +
 drivers/net/ethernet/cadence/macb.c                |    1 +
 drivers/net/ethernet/dnet.c                        |    1 +
 drivers/net/ethernet/freescale/fec.c               |    1 +
 drivers/net/ethernet/freescale/fec_mpc52xx.c       |    1 +
 .../net/ethernet/freescale/fs_enet/fs_enet-main.c  |    1 +
 drivers/net/ethernet/freescale/gianfar.h           |    3 +
 drivers/net/ethernet/freescale/gianfar_ethtool.c   |   29 ++++++++++
 drivers/net/ethernet/freescale/gianfar_ptp.c       |    2 +
 drivers/net/ethernet/freescale/ucc_geth_ethtool.c  |    1 +
 drivers/net/ethernet/marvell/mv643xx_eth.c         |    1 +
 drivers/net/ethernet/marvell/pxa168_eth.c          |    1 +
 drivers/net/ethernet/rdc/r6040.c                   |    1 +
 drivers/net/ethernet/realtek/r8169.c               |    1 +
 drivers/net/ethernet/smsc/smsc911x.c               |    1 +
 drivers/net/ethernet/smsc/smsc9420.c               |    1 +
 .../net/ethernet/stmicro/stmmac/stmmac_ethtool.c   |    1 +
 drivers/net/ethernet/ti/davinci_emac.c             |    1 +
 drivers/net/ethernet/xilinx/ll_temac_main.c        |    1 +
 drivers/net/ethernet/xscale/ixp4xx_eth.c           |   29 ++++++++++
 drivers/net/phy/dp83640.c                          |   31 ++++++++++
 drivers/net/usb/usbnet.c                           |    1 +
 drivers/ptp/ptp_clock.c                            |    6 ++
 drivers/ptp/ptp_ixp46x.c                           |    3 +
 include/linux/ethtool.h                            |   29 ++++++++++
 include/linux/phy.h                                |    3 +
 include/linux/ptp_clock_kernel.h                   |    8 +++
 net/core/ethtool.c                                 |   59 +++++++++++++++++++-
 32 files changed, 241 insertions(+), 3 deletions(-)

-- 
1.7.2.5

^ permalink raw reply	[flat|nested] 34+ messages in thread

end of thread, other threads:[~2012-04-06  7:04 UTC | newest]

Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-04-04  8:59 [PATCH V4 net-next 00/26] ethtool: support time stamping and phc clocks Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 01/26] phc: Add a method for obtaining the device index Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 02/26] ethtool: Introduce a method for getting time stamping capabilities Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 03/26] dp83640: Support the get_ts_info ethtool method Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 04/26] gianfar: " Richard Cochran
2012-04-06  4:25   ` Paul Gortmaker
2012-04-06  4:35     ` David Miller
2012-04-04  8:59 ` [PATCH V4 net-next 05/26] bfin_mac: " Richard Cochran
2012-04-06  4:08   ` Paul Gortmaker
2012-04-06  4:18     ` David Miller
2012-04-06  7:04       ` Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 06/26] ixp4xx_eth: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 07/26] ethtool: Add a common function for drivers with transmit time stamping Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 08/26] ax88796: Support the get_ts_info ethtool method Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 09/26] davinci_emac: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 10/26] dnet: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 11/26] etherh: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 12/26] fec_mpc52xx: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 13/26] fec: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 14/26] fs_enet: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 15/26] ll_temac: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 16/26] macb: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 17/26] mv643xx_eth: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 18/26] pxa168_eth: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 19/26] r6040: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 20/26] r8169: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 21/26] smsc911x: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 22/26] smsc9420: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 23/26] stmmac: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 24/26] tg3: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 25/26] ucc_geth: " Richard Cochran
2012-04-04  8:59 ` [PATCH V4 net-next 26/26] usbnet: " Richard Cochran
2012-04-04  9:29 ` [PATCH V4 net-next 00/26] ethtool: support time stamping and phc clocks David Miller
2012-04-04 10:02   ` Jeff Kirsher

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