/* * 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_SWAPPOL 130 /* 10GBASE-T pair swap & polarity */ #define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */ #define MDIO_PMA_10GBT_SNR 133 /* 10GBASE-T SNR margin, lane A. * Lanes B-D are numbered 134-136. */ #define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */ #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 */ /* LASI (Link Alarm Status Interrupt) registers, defined by XENPAK MSA. */ #define MDIO_PMA_LASI_RXCTRL 0x9000 /* RX_ALARM control */ #define MDIO_PMA_LASI_TXCTRL 0x9001 /* TX_ALARM control */ #define MDIO_PMA_LASI_CTRL 0x9002 /* LASI control */ #define MDIO_PMA_LASI_RXSTAT 0x9003 /* RX_ALARM status */ #define MDIO_PMA_LASI_TXSTAT 0x9004 /* TX_ALARM status */ #define MDIO_PMA_LASI_STAT 0x9005 /* LASI 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 pair swap & polarity */ #define MDIO_PMA_10GBT_SWAPPOL_ABNX 0x0001 /* Pair A/B uncrossed */ #define MDIO_PMA_10GBT_SWAPPOL_CDNX 0x0002 /* Pair C/D uncrossed */ #define MDIO_PMA_10GBT_SWAPPOL_AREV 0x0100 /* Pair A polarity reversed */ #define MDIO_PMA_10GBT_SWAPPOL_BREV 0x0200 /* Pair B polarity reversed */ #define MDIO_PMA_10GBT_SWAPPOL_CREV 0x0400 /* Pair C polarity reversed */ #define MDIO_PMA_10GBT_SWAPPOL_DREV 0x0800 /* Pair D polarity reversed */ /* PMA 10GBASE-T TX power register. */ #define MDIO_PMA_10GBT_TXPWR_SHORT 0x0001 /* Short-reach mode */ /* PMA 10GBASE-T SNR registers. */ /* Value is SNR margin in dB, clamped to range [-127, 127], plus 0x8000. */ #define MDIO_PMA_10GBT_SNR_BIAS 0x8000 #define MDIO_PMA_10GBT_SNR_MAX 127 /* PMA 10GBASE-R FEC ability register. */ #define MDIO_PMA_10GBR_FECABLE_ABLE 0x0001 /* FEC ability */ #define MDIO_PMA_10GBR_FECABLE_ERRABLE 0x0002 /* FEC error indic. ability */ /* 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 */ /* LASI RX_ALARM control/status registers. */ #define MDIO_PMA_LASI_RX_PHYXSLFLT 0x0001 /* PHY XS RX local fault */ #define MDIO_PMA_LASI_RX_PCSLFLT 0x0008 /* PCS RX local fault */ #define MDIO_PMA_LASI_RX_PMALFLT 0x0010 /* PMA/PMD RX local fault */ #define MDIO_PMA_LASI_RX_OPTICPOWERFLT 0x0020 /* RX optical power fault */ #define MDIO_PMA_LASI_RX_WISLFLT 0x0200 /* WIS local fault */ /* LASI TX_ALARM control/status registers. */ #define MDIO_PMA_LASI_TX_PHYXSLFLT 0x0001 /* PHY XS TX local fault */ #define MDIO_PMA_LASI_TX_PCSLFLT 0x0008 /* PCS TX local fault */ #define MDIO_PMA_LASI_TX_PMALFLT 0x0010 /* PMA/PMD TX local fault */ #define MDIO_PMA_LASI_TX_LASERPOWERFLT 0x0080 /* Laser output power fault */ #define MDIO_PMA_LASI_TX_LASERTEMPFLT 0x0100 /* Laser temperature fault */ #define MDIO_PMA_LASI_TX_LASERBICURRFLT 0x0200 /* Laser bias current fault */ /* LASI control/status registers. */ #define MDIO_PMA_LASI_LSALARM 0x0001 /* LS_ALARM enable/status */ #define MDIO_PMA_LASI_TXALARM 0x0002 /* TX_ALARM enable/status */ #define MDIO_PMA_LASI_RXALARM 0x0004 /* RX_ALARM enable/status */ /* 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; } #define MDIO_SUPPORTS_C22 1 #define MDIO_SUPPORTS_C45 2 #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 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_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); extern void mdio45_ethtool_spauseparam_an(const struct mdio_if_info *mdio, const struct ethtool_pauseparam *ecmd); /** * 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__ */