netdev - [PATCH net-next 0/3] Adding PHY Loopback tunable

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Message-ID: <1480339411-5768-1-git-send-email-allan.nielsen@microsemi.com>
Date:   Mon, 28 Nov 2016 14:23:31 +0100
From:   "Allan W. Nielsen" <allan.nielsen@...rosemi.com>
To:     <netdev@...r.kernel.org>
CC:     <andrew@...n.ch>, <f.fainelli@...il.com>,
        <raju.lakkaraju@...rosemi.com>, <allan.nielsen@...rosemi.com>
Subject: [PATCH net-next 0/3] Adding PHY Loopback tunable

Hi All,

This series add support for PHY Loopback tunable, and implement it
for MSCC phys.

To configure loopback, the ethtool_tunable structure is used. 'id' must be
set to 'ETHTOOL_PHY_LOOPBACK' and 'data' specifies the loopback type:
ETHTOOL_PHY_LOOPBACK_* (DISABLE, NEAR, FAR or EXTN).

Here is how to configure loopback using ethtool:

Ethtool Help: ethtool -h for PHY tunables
    ethtool --set-phy-tunable DEVNAME      Set PHY tunable
                [ loopback off|near|far|extn ]
    ethtool --get-phy-tunable DEVNAME      Get PHY tunable
                [ loopback ]

Ethtool ex:
  ethtool --set-phy-tunable eth0 loopback near
  ethtool --set-phy-tunable eth0 loopback far
  ethtool --set-phy-tunable eth0 loopback extn
  ethtool --set-phy-tunable eth0 loopback off
  ethtool --get-phy-tunable eth0 loopback

Patches to ethtool will follow shortly.

The feature is tested on Beaglebone Black with VSC 8531 PHY.

Please review.

Best regards
Allan and Raju

Raju Lakkaraju (3):
  ethtool: (uapi) Add ETHTOOL_PHY_LOOPBACK to PHY tunables
  ethtool: Core impl for ETHTOOL_PHY_LOOPBACK tunable.
  net: phy: Add Loopback support in Microsemi PHYs driver

 drivers/net/phy/mscc.c       | 118 +++++++++++++++++++++++++++++++++++++++++++
 include/uapi/linux/ethtool.h |   8 +++
 net/core/ethtool.c           |   2 +
 3 files changed, 128 insertions(+)

-- 
2.7.3