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net: phy: add helper mii_10gbt_stat_mod_linkmode_lpa_t 

Similar to the existing helpers for the Clause 22 registers add helper
mii_10gbt_stat_mod_linkmode_lpa_t.

Note that this helper is defined in linux/mdio.h, not like the
Clause 22 helpers in linux/mii.h. Reason is that the Clause 45 register
constants are defined in uapi/linux/mdio.h. And uapi/linux/mdio.h
includes linux/mii.h before defining the C45 register constants.

v2:
- remove helpers that don't have users in this series

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2019-02-16 17:26:05 +01:00 committed by David S. Miller
parent bf9d787ba7
commit 9004a14cb6
1 changed files with 19 additions and 0 deletions
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19
include/linux/mdio.h
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@ -286,6 +286,25 @@ static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
return result;
}
/**
* mii_10gbt_stat_mod_linkmode_lpa_t
* @advertising: target the linkmode advertisement settings
* @adv: value of the C45 10GBASE-T AN STATUS register
*
* A small helper function that translates C45 10GBASE-T AN STATUS register bits
* to linkmode advertisement settings. Other bits in advertising aren't changed.
*/
static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
u32 lpa)
{
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
}
int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);