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- From 7b864612a6e3b139a5a607abd0048a19078fe42f Mon Sep 17 00:00:00 2001
- From: Phil Sutter <phil@nwl.cc>
- Date: Wed, 14 May 2014 02:55:06 +0200
- Subject: [PATCH] phy: add ethtool ioctl support, used by ag71xx driver
- ---
- drivers/net/phy/phy.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
- include/linux/phy.h | 1 +
- 2 files changed, 45 insertions(+)
- diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
- index 76d96b9..9439ef3 100644
- --- a/drivers/net/phy/phy.c
- +++ b/drivers/net/phy/phy.c
- @@ -293,6 +293,50 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
- }
- EXPORT_SYMBOL(phy_ethtool_gset);
-
- +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr)
- +{
- + u32 cmd;
- + int tmp;
- + struct ethtool_cmd ecmd = { ETHTOOL_GSET };
- + struct ethtool_value edata = { ETHTOOL_GLINK };
- +
- + if (get_user(cmd, (u32 *) useraddr))
- + return -EFAULT;
- +
- + switch (cmd) {
- + case ETHTOOL_GSET:
- + phy_ethtool_gset(phydev, &ecmd);
- + if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
- + return -EFAULT;
- + return 0;
- +
- + case ETHTOOL_SSET:
- + if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
- + return -EFAULT;
- + return phy_ethtool_sset(phydev, &ecmd);
- +
- + case ETHTOOL_NWAY_RST:
- + /* if autoneg is off, it's an error */
- + tmp = phy_read(phydev, MII_BMCR);
- + if (tmp & BMCR_ANENABLE) {
- + tmp |= (BMCR_ANRESTART);
- + phy_write(phydev, MII_BMCR, tmp);
- + return 0;
- + }
- + return -EINVAL;
- +
- + case ETHTOOL_GLINK:
- + edata.data = (phy_read(phydev,
- + MII_BMSR) & BMSR_LSTATUS) ? 1 : 0;
- + if (copy_to_user(useraddr, &edata, sizeof(edata)))
- + return -EFAULT;
- + return 0;
- + }
- +
- + return -EOPNOTSUPP;
- +}
- +EXPORT_SYMBOL(phy_ethtool_ioctl);
- +
- /**
- * phy_mii_ioctl - generic PHY MII ioctl interface
- * @phydev: the phy_device struct
- diff --git a/include/linux/phy.h b/include/linux/phy.h
- index 565188c..9ab0d79 100644
- --- a/include/linux/phy.h
- +++ b/include/linux/phy.h
- @@ -628,6 +628,7 @@ void phy_stop_machine(struct phy_device *phydev);
- int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
- int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
- int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
- +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr);
- int phy_start_interrupts(struct phy_device *phydev);
- void phy_print_status(struct phy_device *phydev);
- void phy_device_free(struct phy_device *phydev);
- --
- 1.8.5.3
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