Commit c6d5d843 authored by Russell King's avatar Russell King Committed by David S. Miller
Browse files

net: phylink: add phylink_speed_(up|down) interface 



Add an interface for the phy_speed_(up|down) functions when a driver
makes use of phylink. These pass the call through to phylib when we
have a normal PHY attached (i.o.w., not a PHY on a SFP module.)

Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4b88b9ce

drivers/net/phy/phylink.c

+48 −0
Original line number Diff line number Diff line
@@ -1826,6 +1826,54 @@ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) 
}

EXPORT_SYMBOL_GPL(phylink_mii_ioctl);



/**

 * phylink_speed_down() - set the non-SFP PHY to lowest speed supported by both

 *   link partners

 * @pl: a pointer to a &struct phylink returned from phylink_create()

 * @sync: perform action synchronously

 *

 * If we have a PHY that is not part of a SFP module, then set the speed

 * as described in the phy_speed_down() function. Please see this function

 * for a description of the @sync parameter.

 *

 * Returns zero if there is no PHY, otherwise as per phy_speed_down().

 */

int phylink_speed_down(struct phylink *pl, bool sync)

{

	int ret = 0;



	ASSERT_RTNL();



	if (!pl->sfp_bus && pl->phydev)

		ret = phy_speed_down(pl->phydev, sync);



	return ret;

}

EXPORT_SYMBOL_GPL(phylink_speed_down);



/**

 * phylink_speed_up() - restore the advertised speeds prior to the call to

 *   phylink_speed_down()

 * @pl: a pointer to a &struct phylink returned from phylink_create()

 *

 * If we have a PHY that is not part of a SFP module, then restore the

 * PHY speeds as per phy_speed_up().

 *

 * Returns zero if there is no PHY, otherwise as per phy_speed_up().

 */

int phylink_speed_up(struct phylink *pl)

{

	int ret = 0;



	ASSERT_RTNL();



	if (!pl->sfp_bus && pl->phydev)

		ret = phy_speed_up(pl->phydev);



	return ret;

}

EXPORT_SYMBOL_GPL(phylink_speed_up);



static void phylink_sfp_attach(void *upstream, struct sfp_bus *bus)

{

	struct phylink *pl = upstream;

include/linux/phylink.h

+2 −0
Original line number Diff line number Diff line
@@ -392,6 +392,8 @@ int phylink_init_eee(struct phylink *, bool); 
int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);

int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);

int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);

int phylink_speed_down(struct phylink *pl, bool sync);

int phylink_speed_up(struct phylink *pl);



#define phylink_zero(bm) \

	bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)

CRA Git | Maintained and supported by SUSTech CRA and CCSE