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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.
*/
#ifndef __LINUX_MDIO_H__
#define __LINUX_MDIO_H__
#include <linux/mii.h>
/* MDIO Manageable Devices (MMDs). */
#define MDIO_MMD_PMAPMD 1 /* Physical Medium Attachment/
* Physical Medium Dependent */
#define MDIO_MMD_WIS 2 /* WAN Interface Sublayer */
#define MDIO_MMD_PCS 3 /* Physical Coding Sublayer */
#define MDIO_MMD_PHYXS 4 /* PHY Extender Sublayer */
#define MDIO_MMD_DTEXS 5 /* DTE Extender Sublayer */
#define MDIO_MMD_TC 6 /* Transmission Convergence */
#define MDIO_MMD_AN 7 /* Auto-Negotiation */
#define MDIO_MMD_C22EXT 29 /* Clause 22 extension */
#define MDIO_MMD_VEND1 30 /* Vendor specific 1 */
#define MDIO_MMD_VEND2 31 /* Vendor specific 2 */
/* Generic MDIO registers. */
#define MDIO_CTRL1 MII_BMCR
#define MDIO_STAT1 MII_BMSR
#define MDIO_DEVID1 MII_PHYSID1
#define MDIO_DEVID2 MII_PHYSID2
#define MDIO_SPEED 4 /* Speed ability */
#define MDIO_DEVS1 5 /* Devices in package */
#define MDIO_DEVS2 6
#define MDIO_CTRL2 7 /* 10G control 2 */
#define MDIO_STAT2 8 /* 10G status 2 */
#define MDIO_PMA_TXDIS 9 /* 10G PMA/PMD transmit disable */
#define MDIO_PMA_RXDET 10 /* 10G PMA/PMD receive signal detect */
#define MDIO_PMA_EXTABLE 11 /* 10G PMA/PMD extended ability */
#define MDIO_PKGID1 14 /* Package identifier */
#define MDIO_PKGID2 15
#define MDIO_AN_ADVERTISE 16 /* AN advertising (base page) */
#define MDIO_AN_LPA 19 /* AN LP abilities (base page) */
#define MDIO_PHYXS_LNSTAT 24 /* PHY XGXS lane state */
/* Media-dependent registers. */
#define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */
#define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */
#define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */
#define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */
#define MDIO_AN_10GBT_CTRL 32 /* 10GBASE-T auto-negotiation control */
#define MDIO_AN_10GBT_STAT 33 /* 10GBASE-T auto-negotiation status */
/* Control register 1. */
/* Enable extended speed selection */
#define MDIO_CTRL1_SPEEDSELEXT (BMCR_SPEED1000 | BMCR_SPEED100)
/* All speed selection bits */
#define MDIO_CTRL1_SPEEDSEL (MDIO_CTRL1_SPEEDSELEXT | 0x003c)
#define MDIO_CTRL1_FULLDPLX BMCR_FULLDPLX
#define MDIO_CTRL1_LPOWER BMCR_PDOWN
#define MDIO_CTRL1_RESET BMCR_RESET
#define MDIO_PMA_CTRL1_LOOPBACK 0x0001
#define MDIO_PMA_CTRL1_SPEED1000 BMCR_SPEED1000
#define MDIO_PMA_CTRL1_SPEED100 BMCR_SPEED100
#define MDIO_PCS_CTRL1_LOOPBACK BMCR_LOOPBACK
#define MDIO_PHYXS_CTRL1_LOOPBACK BMCR_LOOPBACK
#define MDIO_AN_CTRL1_RESTART BMCR_ANRESTART
#define MDIO_AN_CTRL1_ENABLE BMCR_ANENABLE
#define MDIO_AN_CTRL1_XNP 0x2000 /* Enable extended next page */
/* 10 Gb/s */
#define MDIO_CTRL1_SPEED10G (MDIO_CTRL1_SPEEDSELEXT | 0x00)
/* 10PASS-TS/2BASE-TL */
#define MDIO_CTRL1_SPEED10P2B (MDIO_CTRL1_SPEEDSELEXT | 0x04)
/* Status register 1. */
#define MDIO_STAT1_LPOWERABLE 0x0002 /* Low-power ability */
#define MDIO_STAT1_LSTATUS BMSR_LSTATUS
#define MDIO_STAT1_FAULT 0x0080 /* Fault */
#define MDIO_AN_STAT1_LPABLE 0x0001 /* Link partner AN ability */
#define MDIO_AN_STAT1_ABLE BMSR_ANEGCAPABLE
#define MDIO_AN_STAT1_RFAULT BMSR_RFAULT
#define MDIO_AN_STAT1_COMPLETE BMSR_ANEGCOMPLETE
#define MDIO_AN_STAT1_PAGE 0x0040 /* Page received */
#define MDIO_AN_STAT1_XNP 0x0080 /* Extended next page status */
/* Speed register. */
#define MDIO_SPEED_10G 0x0001 /* 10G capable */
#define MDIO_PMA_SPEED_2B 0x0002 /* 2BASE-TL capable */
#define MDIO_PMA_SPEED_10P 0x0004 /* 10PASS-TS capable */
#define MDIO_PMA_SPEED_1000 0x0010 /* 1000M capable */
#define MDIO_PMA_SPEED_100 0x0020 /* 100M capable */
#define MDIO_PMA_SPEED_10 0x0040 /* 10M capable */
#define MDIO_PCS_SPEED_10P2B 0x0002 /* 10PASS-TS/2BASE-TL capable */
/* Device present registers. */
#define MDIO_DEVS_PRESENT(devad) (1 << (devad))
#define MDIO_DEVS_PMAPMD MDIO_DEVS_PRESENT(MDIO_MMD_PMAPMD)
#define MDIO_DEVS_WIS MDIO_DEVS_PRESENT(MDIO_MMD_WIS)
#define MDIO_DEVS_PCS MDIO_DEVS_PRESENT(MDIO_MMD_PCS)
#define MDIO_DEVS_PHYXS MDIO_DEVS_PRESENT(MDIO_MMD_PHYXS)
#define MDIO_DEVS_DTEXS MDIO_DEVS_PRESENT(MDIO_MMD_DTEXS)
#define MDIO_DEVS_TC MDIO_DEVS_PRESENT(MDIO_MMD_TC)
#define MDIO_DEVS_AN MDIO_DEVS_PRESENT(MDIO_MMD_AN)
#define MDIO_DEVS_C22EXT MDIO_DEVS_PRESENT(MDIO_MMD_C22EXT)
/* Control register 2. */
#define MDIO_PMA_CTRL2_TYPE 0x000f /* PMA/PMD type selection */
#define MDIO_PMA_CTRL2_10GBCX4 0x0000 /* 10GBASE-CX4 type */
#define MDIO_PMA_CTRL2_10GBEW 0x0001 /* 10GBASE-EW type */
#define MDIO_PMA_CTRL2_10GBLW 0x0002 /* 10GBASE-LW type */
#define MDIO_PMA_CTRL2_10GBSW 0x0003 /* 10GBASE-SW type */
#define MDIO_PMA_CTRL2_10GBLX4 0x0004 /* 10GBASE-LX4 type */
#define MDIO_PMA_CTRL2_10GBER 0x0005 /* 10GBASE-ER type */
#define MDIO_PMA_CTRL2_10GBLR 0x0006 /* 10GBASE-LR type */
#define MDIO_PMA_CTRL2_10GBSR 0x0007 /* 10GBASE-SR type */
#define MDIO_PMA_CTRL2_10GBLRM 0x0008 /* 10GBASE-LRM type */
#define MDIO_PMA_CTRL2_10GBT 0x0009 /* 10GBASE-T type */
#define MDIO_PMA_CTRL2_10GBKX4 0x000a /* 10GBASE-KX4 type */
#define MDIO_PMA_CTRL2_10GBKR 0x000b /* 10GBASE-KR type */
#define MDIO_PMA_CTRL2_1000BT 0x000c /* 1000BASE-T type */
#define MDIO_PMA_CTRL2_1000BKX 0x000d /* 1000BASE-KX type */
#define MDIO_PMA_CTRL2_100BTX 0x000e /* 100BASE-TX type */
#define MDIO_PMA_CTRL2_10BT 0x000f /* 10BASE-T type */
#define MDIO_PCS_CTRL2_TYPE 0x0003 /* PCS type selection */
#define MDIO_PCS_CTRL2_10GBR 0x0000 /* 10GBASE-R type */
#define MDIO_PCS_CTRL2_10GBX 0x0001 /* 10GBASE-X type */
#define MDIO_PCS_CTRL2_10GBW 0x0002 /* 10GBASE-W type */
#define MDIO_PCS_CTRL2_10GBT 0x0003 /* 10GBASE-T type */
/* Status register 2. */
#define MDIO_STAT2_RXFAULT 0x0400 /* Receive fault */
#define MDIO_STAT2_TXFAULT 0x0800 /* Transmit fault */
#define MDIO_STAT2_DEVPRST 0xc000 /* Device present */
#define MDIO_STAT2_DEVPRST_VAL 0x8000 /* Device present value */
#define MDIO_PMA_STAT2_LBABLE 0x0001 /* PMA loopback ability */
#define MDIO_PMA_STAT2_10GBEW 0x0002 /* 10GBASE-EW ability */
#define MDIO_PMA_STAT2_10GBLW 0x0004 /* 10GBASE-LW ability */
#define MDIO_PMA_STAT2_10GBSW 0x0008 /* 10GBASE-SW ability */
#define MDIO_PMA_STAT2_10GBLX4 0x0010 /* 10GBASE-LX4 ability */
#define MDIO_PMA_STAT2_10GBER 0x0020 /* 10GBASE-ER ability */
#define MDIO_PMA_STAT2_10GBLR 0x0040 /* 10GBASE-LR ability */
#define MDIO_PMA_STAT2_10GBSR 0x0080 /* 10GBASE-SR ability */
#define MDIO_PMD_STAT2_TXDISAB 0x0100 /* PMD TX disable ability */
#define MDIO_PMA_STAT2_EXTABLE 0x0200 /* Extended abilities */
#define MDIO_PMA_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
#define MDIO_PMA_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
#define MDIO_PCS_STAT2_10GBR 0x0001 /* 10GBASE-R capable */
#define MDIO_PCS_STAT2_10GBX 0x0002 /* 10GBASE-X capable */
#define MDIO_PCS_STAT2_10GBW 0x0004 /* 10GBASE-W capable */
#define MDIO_PCS_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
#define MDIO_PCS_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
/* Transmit disable register. */
#define MDIO_PMD_TXDIS_GLOBAL 0x0001 /* Global PMD TX disable */
#define MDIO_PMD_TXDIS_0 0x0002 /* PMD TX disable 0 */
#define MDIO_PMD_TXDIS_1 0x0004 /* PMD TX disable 1 */
#define MDIO_PMD_TXDIS_2 0x0008 /* PMD TX disable 2 */
#define MDIO_PMD_TXDIS_3 0x0010 /* PMD TX disable 3 */
/* Receive signal detect register. */
#define MDIO_PMD_RXDET_GLOBAL 0x0001 /* Global PMD RX signal detect */
#define MDIO_PMD_RXDET_0 0x0002 /* PMD RX signal detect 0 */
#define MDIO_PMD_RXDET_1 0x0004 /* PMD RX signal detect 1 */
#define MDIO_PMD_RXDET_2 0x0008 /* PMD RX signal detect 2 */
#define MDIO_PMD_RXDET_3 0x0010 /* PMD RX signal detect 3 */
/* Extended abilities register. */
#define MDIO_PMA_EXTABLE_10GCX4 0x0001 /* 10GBASE-CX4 ability */
#define MDIO_PMA_EXTABLE_10GBLRM 0x0002 /* 10GBASE-LRM ability */
#define MDIO_PMA_EXTABLE_10GBT 0x0004 /* 10GBASE-T ability */
#define MDIO_PMA_EXTABLE_10GBKX4 0x0008 /* 10GBASE-KX4 ability */
#define MDIO_PMA_EXTABLE_10GBKR 0x0010 /* 10GBASE-KR ability */
#define MDIO_PMA_EXTABLE_1000BT 0x0020 /* 1000BASE-T ability */
#define MDIO_PMA_EXTABLE_1000BKX 0x0040 /* 1000BASE-KX ability */
#define MDIO_PMA_EXTABLE_100BTX 0x0080 /* 100BASE-TX ability */
#define MDIO_PMA_EXTABLE_10BT 0x0100 /* 10BASE-T ability */
/* PHY XGXS lane state register. */
#define MDIO_PHYXS_LNSTAT_SYNC0 0x0001
#define MDIO_PHYXS_LNSTAT_SYNC1 0x0002
#define MDIO_PHYXS_LNSTAT_SYNC2 0x0004
#define MDIO_PHYXS_LNSTAT_SYNC3 0x0008
#define MDIO_PHYXS_LNSTAT_ALIGN 0x1000
/* PMA 10GBASE-T TX power register. */
#define MDIO_PMA_10GBT_TXPWR_SHORT 0x0001 /* Short-reach mode */
/* PCS 10GBASE-R/-T status register 1. */
#define MDIO_PCS_10GBRT_STAT1_BLKLK 0x0001 /* Block lock attained */
/* PCS 10GBASE-R/-T status register 2. */
#define MDIO_PCS_10GBRT_STAT2_ERR 0x00ff
#define MDIO_PCS_10GBRT_STAT2_BER 0x3f00
/* AN 10GBASE-T control register. */
#define MDIO_AN_10GBT_CTRL_ADV10G 0x1000 /* Advertise 10GBASE-T */
/* AN 10GBASE-T status register. */
#define MDIO_AN_10GBT_STAT_LPTRR 0x0200 /* LP training reset req. */
#define MDIO_AN_10GBT_STAT_LPLTABLE 0x0400 /* LP loop timing ability */
#define MDIO_AN_10GBT_STAT_LP10G 0x0800 /* LP is 10GBT capable */
#define MDIO_AN_10GBT_STAT_REMOK 0x1000 /* Remote OK */
#define MDIO_AN_10GBT_STAT_LOCOK 0x2000 /* Local OK */
#define MDIO_AN_10GBT_STAT_MS 0x4000 /* Master/slave config */
#define MDIO_AN_10GBT_STAT_MSFLT 0x8000 /* Master/slave config fault */
/* Mapping between MDIO PRTAD/DEVAD and mii_ioctl_data::phy_id */
#define MDIO_PHY_ID_C45 0x8000
#define MDIO_PHY_ID_PRTAD 0x03e0
#define MDIO_PHY_ID_DEVAD 0x001f
#define MDIO_PHY_ID_C45_MASK \
(MDIO_PHY_ID_C45 | MDIO_PHY_ID_PRTAD | MDIO_PHY_ID_DEVAD)
static inline __u16 mdio_phy_id_c45(int prtad, int devad)
{
return MDIO_PHY_ID_C45 | (prtad << 5) | devad;
}
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;
}
#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__ */
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