Patch "net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround" has been added to the 4.4-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-phy-micrel-ksz9031-reconfigure-autoneg-after-phy-autoneg-workaround.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From foo@baz Sun Dec 31 11:20:35 CET 2017
From: Grygorii Strashko <[email protected]>
Date: Wed, 20 Dec 2017 18:45:10 -0600
Subject: net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
From: Grygorii Strashko <[email protected]>
[ Upstream commit c1a8d0a3accf64a014d605e6806ce05d1c17adf1 ]
Under some circumstances driver will perform PHY reset in ksz9031_read_status() to fix autoneg failure case (idle error count = 0xFF). When this happens ksz9031 will not detect link status change any more when connecting to Netgear 1G switch (link can be recovered sometimes by restarting netdevice "ifconfig down up"). Reproduced with TI am572x board equipped with ksz9031 PHY while connecting to Netgear 1G switch.
Fix the issue by reconfiguring autonegotiation after PHY reset in ksz9031_read_status().
--- drivers/net/phy/micrel.c | 1 + 1 file changed, 1 insertion(+)
drivers/net/phy/micrel.c +1 -0
@@ -541,6 +541,7 @@ static int ksz9031_read_status(struct ph phydev->link =0 ;if (phydev->drv->config_intr &&phy_interrupt_is_valid (phydev)) phydev->drv->config_intr (phydev); +return genphy_config_aneg (phydev); }return 0 ;
Patches currently in stable-queue which might be from [email protected] are
queue-4.4/net-phy-micrel-ksz9031-reconfigure-autoneg-after-phy-autoneg-workaround.patch