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author | Allan, Bruce W <bruce.w.allan@intel.com> | 2012-08-20 04:55:29 +0000 |
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committer | David S. Miller <davem@davemloft.net> | 2012-08-22 22:58:27 -0700 |
commit | b32607dd47d456b99f0a16f1c37bc8a0975ffb19 (patch) | |
tree | 74be66275dc26089b3a2c7b73b83d08198cff551 /include/linux/mdio.h | |
parent | 9e67030af367ab524d0856af9e992de241eca3c7 (diff) | |
download | linux-stable-b32607dd47d456b99f0a16f1c37bc8a0975ffb19.tar.gz linux-stable-b32607dd47d456b99f0a16f1c37bc8a0975ffb19.tar.bz2 linux-stable-b32607dd47d456b99f0a16f1c37bc8a0975ffb19.zip |
mdio: translation of MMD EEE registers to/from ethtool settings
The helper functions which translate IEEE MDIO Manageable Device (MMD)
Energy-Efficient Ethernet (EEE) registers 3.20, 7.60 and 7.61 to and from
the comparable ethtool supported/advertised settings will be needed by
drivers other than those in PHYLIB (e.g. e1000e in a follow-on patch).
In the same fashion as similar translation functions in linux/mii.h, move
these functions from the PHYLIB core to the linux/mdio.h header file so the
code will not have to be duplicated in each driver needing MMD-to-ethtool
(and vice-versa) translations. The function and some variable names have
been renamed to be more descriptive.
Not tested on the only hardware that currently calls the related functions,
stmmac, because I don't have access to any. Has been compile tested and
the translations have been tested on a locally modified version of e1000e.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mdio.h')
-rw-r--r-- | include/linux/mdio.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 7cccafe50e7b..6c406845f7e2 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -377,5 +377,88 @@ static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio, extern int mdio_mii_ioctl(const struct mdio_if_info *mdio, struct mii_ioctl_data *mii_data, int cmd); +/** + * mmd_eee_cap_to_ethtool_sup_t + * @eee_cap: value of the MMD EEE Capability register + * + * A small helper function that translates MMD EEE Capability (3.20) bits + * to ethtool supported settings. + */ +static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap) +{ + u32 supported = 0; + + if (eee_cap & MDIO_EEE_100TX) + supported |= SUPPORTED_100baseT_Full; + if (eee_cap & MDIO_EEE_1000T) + supported |= SUPPORTED_1000baseT_Full; + if (eee_cap & MDIO_EEE_10GT) + supported |= SUPPORTED_10000baseT_Full; + if (eee_cap & MDIO_EEE_1000KX) + supported |= SUPPORTED_1000baseKX_Full; + if (eee_cap & MDIO_EEE_10GKX4) + supported |= SUPPORTED_10000baseKX4_Full; + if (eee_cap & MDIO_EEE_10GKR) + supported |= SUPPORTED_10000baseKR_Full; + + return supported; +} + +/** + * mmd_eee_adv_to_ethtool_adv_t + * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers + * + * A small helper function that translates the MMD EEE Advertisment (7.60) + * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement + * settings. + */ +static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv) +{ + u32 adv = 0; + + if (eee_adv & MDIO_EEE_100TX) + adv |= ADVERTISED_100baseT_Full; + if (eee_adv & MDIO_EEE_1000T) + adv |= ADVERTISED_1000baseT_Full; + if (eee_adv & MDIO_EEE_10GT) + adv |= ADVERTISED_10000baseT_Full; + if (eee_adv & MDIO_EEE_1000KX) + adv |= ADVERTISED_1000baseKX_Full; + if (eee_adv & MDIO_EEE_10GKX4) + adv |= ADVERTISED_10000baseKX4_Full; + if (eee_adv & MDIO_EEE_10GKR) + adv |= ADVERTISED_10000baseKR_Full; + + return adv; +} + +/** + * ethtool_adv_to_mmd_eee_adv_t + * @adv: the ethtool advertisement settings + * + * A small helper function that translates ethtool advertisement settings + * to EEE advertisements for the MMD EEE Advertisement (7.60) and + * MMD EEE Link Partner Ability (7.61) registers. + */ +static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv) +{ + u16 reg = 0; + + if (adv & ADVERTISED_100baseT_Full) + reg |= MDIO_EEE_100TX; + if (adv & ADVERTISED_1000baseT_Full) + reg |= MDIO_EEE_1000T; + if (adv & ADVERTISED_10000baseT_Full) + reg |= MDIO_EEE_10GT; + if (adv & ADVERTISED_1000baseKX_Full) + reg |= MDIO_EEE_1000KX; + if (adv & ADVERTISED_10000baseKX4_Full) + reg |= MDIO_EEE_10GKX4; + if (adv & ADVERTISED_10000baseKR_Full) + reg |= MDIO_EEE_10GKR; + + return reg; +} + #endif /* __KERNEL__ */ #endif /* __LINUX_MDIO_H__ */ |