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include/linux/mdio.h
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/* * linux/mdio.h: definitions for MDIO (clause 45) transceivers * Copyright 2006-2009 Solarflare Communications Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation, incorporated herein by reference. */ |
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#ifndef __LINUX_MDIO_H__ #define __LINUX_MDIO_H__ |
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#include <uapi/linux/mdio.h> |
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static inline bool mdio_phy_id_is_c45(int phy_id) { return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK); } static inline __u16 mdio_phy_id_prtad(int phy_id) { return (phy_id & MDIO_PHY_ID_PRTAD) >> 5; } static inline __u16 mdio_phy_id_devad(int phy_id) { return phy_id & MDIO_PHY_ID_DEVAD; } |
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/** * 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; |
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u32 mmds; |
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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) |
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#define MDIO_SUPPORTS_C22 1 #define MDIO_SUPPORTS_C45 2 |
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#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); |
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/** * 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; } |
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#endif /* __LINUX_MDIO_H__ */ |