kernel.git/drivers/net/phy/phy-core.c, branch linux-5.9.y

ethtool: Add support for 100Gbps per lane link modes

2020-07-08T22:30:42Z

Define 100G, 200G and 400G link modes using 100Gbps per lane LR, ER and FR are defined as a single link mode because they are using same technology and by design are fully interoperable. EEPROM content indicates if the module is LR, ER, or FR, and the user space ethtool decoder is planned to support decoding these modes in the EEPROM. Signed-off-by: Meir Lichtinger CC: Andrew Lunn Reviewed-by: Aya Levin Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller

net: mdiobus: add clause 45 mdiobus accessors

2020-05-26T22:31:45Z

There is a recurring pattern throughout some of the PHY code converting a devad and regnum to our packed clause 45 representation. Rather than having this scattered around the code, let's put a common translation function in mdio.h, and provide some register accessors. Convert the phylib core, phylink, bcm87xx and cortina to use these. Signed-off-by: Russell King Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: add and use phy_check_downshift

2020-03-24T04:09:47Z

So far PHY drivers have to check whether a downshift occurred to be able to notify the user. To make life of drivers authors a little bit easier move the downshift notification to phylib. phy_check_downshift() compares the highest mutually advertised speed with the actual value of phydev->speed (typically read by the PHY driver from a vendor-specific register) to detect a downshift. v2: - Add downshift hint to phy_print_status Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller

net: mdiobus: add APIs for modifying a MDIO device register

2020-03-18T05:51:16Z

Add APIs for modifying a MDIO device register, similar to the existing phy_modify() group of functions, but at mdiobus level instead. Adapt __phy_modify_changed() to use the new mdiobus level helper. Signed-off-by: Russell King Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

ethtool: Add support for low latency RS FEC

2020-02-19T03:17:31Z

Add support for low latency Reed Solomon FEC as LLRS. The LL-FEC is defined by the 25G/50G ethernet consortium, in the document titled "Low Latency Reed Solomon Forward Error Correction" Signed-off-by: Aya Levin Reviewed-by: Eran Ben Elisha CC: Andrew Lunn Signed-off-by: Saeed Mahameed Reviewed-by: Andrew Lunn

net: phy: don't crash in phy_read/_write_mmd without a PHY driver

2020-01-20T09:08:20Z

The APIs can be used by Ethernet drivers without actually loading a PHY driver. This may become more widespread in the future with 802.3z compatible MAC PCS devices being locally driven by the MAC driver when configuring for a PHY mode with in-band negotiation. Check that drv is not NULL before reading from it. Signed-off-by: Alex Marginean Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller

net: phy: add helpers phy_(un)lock_mdio_bus

2019-11-25T18:47:00Z

Add helpers to make locking/unlocking the MDIO bus easier. Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller

net: phy: avoid NPE if read_page/write_page callbacks are not available

2019-10-18T16:57:55Z

Currently there's a bug in the module subsystem [0] preventing load of the PHY driver module on certain systems (as one symptom). This results in a NPE on such systems for the following reason: Instead of the correct PHY driver the genphy driver is loaded that doesn't implement the read_page/write_page callbacks. Every call to phy_read_paged() et al will result in a NPE therefore. In parallel to fixing the root cause we should make sure that this one and maybe similar issues in other subsystems don't result in a NPE in phylib. So let's check for the callbacks before using them and warn once if they are not available. [0] https://marc.info/?t=157072642100001&r=1&w=2 Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller

ethtool: Add support for 400Gbps (50Gbps per lane) link modes

2019-10-15T22:02:30Z

Add support for 400Gbps speed, link modes of 50Gbps per lane Signed-off-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller

net: phy: extract pause mode

2019-10-05T01:11:08Z

Extract the update of phylib's software pause mode state from genphy_read_status(), so that we can re-use this functionality with PHYs that have alternative ways to read the negotiation results. Tested-by: tinywrkb Reviewed-by: Andrew Lunn Signed-off-by: Russell King Signed-off-by: David S. Miller