mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 10:06:43 +07:00
652a4a53fc
Use it or lose it. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
177 lines
5.2 KiB
C
177 lines
5.2 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
#ifndef __LINUX_MDIO_H__
|
|
#define __LINUX_MDIO_H__
|
|
|
|
#include <uapi/linux/mdio.h>
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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 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);
|
|
|
|
/**
|
|
* 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 /* __LINUX_MDIO_H__ */
|