From: Robert Hancock Date: Tue, 16 Feb 2021 22:54:53 +0000 (-0600) Subject: net: phy: Add is_on_sfp_module flag and phy_on_sfp helper X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b834489bceccc64641684eee5e93275cdf5f465b;p=linux.git net: phy: Add is_on_sfp_module flag and phy_on_sfp helper Add a flag and helper function to indicate that a PHY device is part of an SFP module, which is set on attach. This can be used by PHY drivers to handle SFP-specific quirks or behavior. Signed-off-by: Robert Hancock Signed-off-by: David S. Miller --- diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 05261698bf748..d6ac3ed38197b 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1377,6 +1377,8 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, if (phydev->sfp_bus_attached) dev->sfp_bus = phydev->sfp_bus; + else if (dev->sfp_bus) + phydev->is_on_sfp_module = true; } /* Some Ethernet drivers try to connect to a PHY device before diff --git a/include/linux/phy.h b/include/linux/phy.h index 0d537f59b77f7..1a12e4436b5b0 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -492,6 +492,7 @@ struct macsec_ops; * @sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. * @loopback_enabled: Set true if this PHY has been loopbacked successfully. * @downshifted_rate: Set true if link speed has been downshifted. + * @is_on_sfp_module: Set true if PHY is located on an SFP module. * @state: State of the PHY for management purposes * @dev_flags: Device-specific flags used by the PHY driver. * @irq: IRQ number of the PHY's interrupt (-1 if none) @@ -565,6 +566,7 @@ struct phy_device { unsigned sysfs_links:1; unsigned loopback_enabled:1; unsigned downshifted_rate:1; + unsigned is_on_sfp_module:1; unsigned autoneg:1; /* The most recently read link state */ @@ -1296,6 +1298,15 @@ static inline bool phy_is_internal(struct phy_device *phydev) return phydev->is_internal; } +/** + * phy_on_sfp - Convenience function for testing if a PHY is on an SFP module + * @phydev: the phy_device struct + */ +static inline bool phy_on_sfp(struct phy_device *phydev) +{ + return phydev->is_on_sfp_module; +} + /** * phy_interface_mode_is_rgmii - Convenience function for testing if a * PHY interface mode is RGMII (all variants)