diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mdio.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/linux/mdio.h b/include/linux/mdio.h index d57ddb08a1b..ba41537eaa8 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -234,4 +234,70 @@ static inline __u16 mdio_phy_id_devad(int phy_id) return phy_id & MDIO_PHY_ID_DEVAD; } +#ifdef __KERNEL__ + +/** + * struct mdio_if_info - Ethernet controller MDIO interface + * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown) + * @mmds: Mask of MMDs expected to be present in the PHY. This must be + * non-zero unless @prtad = %MDIO_PRTAD_NONE. + * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then + * MII register access will be passed through with @devad = + * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to + * commonly used clause 22 registers will be translated into + * clause 45 registers. + * @dev: Net device structure + * @mdio_read: Register read function; returns value or negative error code + * @mdio_write: Register write function; returns 0 or negative error code + */ +struct mdio_if_info { + int prtad; + u32 __bitwise mmds; + unsigned mode_support; + + struct net_device *dev; + int (*mdio_read)(struct net_device *dev, int prtad, int devad, + u16 addr); + int (*mdio_write)(struct net_device *dev, int prtad, int devad, + u16 addr, u16 val); +}; + +#define MDIO_PRTAD_NONE (-1) +#define MDIO_DEVAD_NONE (-1) +#define MDIO_SUPPORTS_C22 1 +#define MDIO_SUPPORTS_C45 2 +#define MDIO_EMULATE_C22 4 + +struct ethtool_cmd; +struct ethtool_pauseparam; +extern int mdio45_probe(struct mdio_if_info *mdio, int prtad); +extern int mdio_set_flag(const struct mdio_if_info *mdio, + int prtad, int devad, u16 addr, int mask, + bool sense); +extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds); +extern int mdio45_nway_restart(const struct mdio_if_info *mdio); +extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, + struct ethtool_cmd *ecmd, + u32 npage_adv, u32 npage_lpa); + +/** + * mdio45_ethtool_gset - get settings for ETHTOOL_GSET + * @mdio: MDIO interface + * @ecmd: Ethtool request structure + * + * Since the CSRs for auto-negotiation using next pages are not fully + * standardised, this function does not attempt to decode them. Use + * mdio45_ethtool_gset_npage() to specify advertisement bits from next + * pages. + */ +static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio, + struct ethtool_cmd *ecmd) +{ + mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0); +} + +extern int mdio_mii_ioctl(const struct mdio_if_info *mdio, + struct mii_ioctl_data *mii_data, int cmd); + +#endif /* __KERNEL__ */ #endif /* __LINUX_MDIO_H__ */ |