user/sven/linux.git/drivers/net/phy, branch v4.0.3

amd-xgbe-phy: PHY KX/KR mode differences

2015-02-25T21:57:42Z

The PHY requires different settings for the Decision Feedback Analyzer (DFE) when running in KX mode vs. KR mode. Update the code to change these settings when changing modes in order to provide a more stable link. Additionally, adjust the 10GbE PQ skew default setting to a more sane value. Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller

net: phy: Fix verification of EEE support in phy_init_eee

2015-02-20T20:29:49Z

phy_init_eee uses phy_find_setting(phydev->speed, phydev->duplex) to find a valid entry in the settings array for the given speed and duplex value. For full duplex 1000baseT, this will return the first matching entry, which is the entry for 1000baseKX_Full. If the phy eee does not support 1000baseKX_Full, this entry will not match, causing phy_init_eee to fail for no good reason. Fixes: 9a9c56cb34e6 ("net: phy: fix a bug when verify the EEE support") Fixes: 3e7077067e80c ("phy: Expand phy speed/duplex settings array") Cc: Giuseppe Cavallaro Signed-off-by: Guenter Roeck Acked-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: micrel: disable NAND-tree for KSZ8021, KSZ8031, KSZ8051, KSZ8081

2015-02-15T04:30:55Z

NAND-tree is used to check wiring between MAC and PHY using NAND gates on the PHY side, hence the name. NAND-tree initial status is latched at reset by probing the IRQ pin. However some devices are sharing the PHY IRQ pin with other peripherals such as Atmel SAMA5D[34]x-EK boards when using the optional TM7000 display module, therefore they are switching the PHY in NAND-tree test mode depending on the current IRQ line status at reset. This patch ensure PHY is not in NAND-tree test mode for all Micrel PHYs using IRQ line as a NAND-tree toggle mode at reset. Signed-off-by: Sylvain Rochet Signed-off-by: Boris Brezillon Signed-off-by: David S. Miller

net: phy: Invalidate LP advertising flags when restarting or disabling AN

2015-01-27T08:27:08Z

It is possible to see the old value of the LP advertising flags through ethtool after reconfiguring the PHY and before autonegotiation completes. If autonegotiation is turned off then the last value seen will persist indefinitely. Signed-off-by: Ben Hutchings Acked-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: avoid suspending twice a PHY

2015-01-27T08:16:51Z

As part of a call to ndo_close() a netdevice driver may call phy_disconnect() -> phy_detach() -> phy_suspend(), such that the PHY is suspsended at this point and a netdevice driver may clock gate the backing peripheral providing MDIO bus accessses as well. Update mdio_bus_phy_may_suspend() to return whether a PHY is allowed to be suspended and conversely resumed if and only if it was not previously suspended before while it is currently in detached (netdev pointer is NULL) state. This fixes bus errors seen during S2/S3 suspend/resume cycles for netdevice drivers such as GENET which clock gates the entire Ethernet MAC, including the MDIO bus block. Acked-by: Fugang Duan Tested-by: Fugang Duan Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: keep track of the PHY suspend state

2015-01-27T08:16:51Z

In order to avoid double calls to phydev->drv->suspend and resume, keep track of whether the PHY has already been suspended as a consequence of a successful call to phy_suspend(). We will use this in our MDIO bus suspend/resume hooks to avoid a double suspend call. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: utilize phy_suspend and phy_resume

2015-01-27T08:16:51Z

phy_suspend and phy_resume are an abstraction on top of the PHY device driver suspend and resume callbacks, utilize those since they are the proper interface to suspending and resuming a PHY device. Acked-by: Fugang Duan Tested-by: Fugang Duan Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: fixed: allow setting no update_link callback

2015-01-26T00:02:13Z

fixed_phy_set_link_update() contains an early check against a NULL callback pointer, which basically prevents us from removing any previous callback we may have set. The users of the fp->link_update callback deal with a NULL callback just fine, so we really want to allow "removing" a link_update callback to avoid dangling callback pointers during e.g: module removal. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

amd-xgbe-phy: Allow certain PHY settings to be set by UEFI

2015-01-17T03:24:21Z

Certain PHY settings need to be configurable by UEFI depending on the platform being used. Add new device tree / ACPI properties that, if present, will override the pre-determined values currently used. Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller

amd-xgbe: Add ACPI support

2015-01-17T03:24:20Z

Add support for ACPI to the amd-xgbe and amd-xgbe-phy drivers. This support converts many of the device tree APIs to the new device_property APIs. Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller