drivers/net/sfc/mdio_10g.h - kernel/msm-4.19 - Gitiles

 /****************************************************************************
  * Driver for Solarflare Solarstorm network controllers and boards
  * Copyright 2006-2008 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 EFX_MDIO_10G_H
 #define EFX_MDIO_10G_H

 /*
  * Definitions needed for doing 10G MDIO as specified in clause 45
  * MDIO, which do not appear in Linux yet. Also some helper functions.
  */

 #include "efx.h"
 #include "boards.h"

 /* Numbering of the MDIO Manageable Devices (MMDs) */
 /* Physical Medium Attachment/ Physical Medium Dependent sublayer */
 #define MDIO_MMD_PMAPMD	(1)
 /* WAN Interface Sublayer */
 #define MDIO_MMD_WIS	(2)
 /* Physical Coding Sublayer */
 #define MDIO_MMD_PCS	(3)
 /* PHY Extender Sublayer */
 #define MDIO_MMD_PHYXS	(4)
 /* Extender Sublayer */
 #define MDIO_MMD_DTEXS	(5)
 /* Transmission convergence */
 #define MDIO_MMD_TC	(6)
 /* Auto negotiation */
 #define MDIO_MMD_AN	(7)
 /* Clause 22 extension */
 #define MDIO_MMD_C22EXT	29

 /* Generic register locations */
 #define MDIO_MMDREG_CTRL1	(0)
 #define MDIO_MMDREG_STAT1	(1)
 #define MDIO_MMDREG_IDHI	(2)
 #define MDIO_MMDREG_IDLOW	(3)
 #define MDIO_MMDREG_SPEED	(4)
 #define MDIO_MMDREG_DEVS0	(5)
 #define MDIO_MMDREG_DEVS1	(6)
 #define MDIO_MMDREG_CTRL2	(7)
 #define MDIO_MMDREG_STAT2	(8)
 #define MDIO_MMDREG_TXDIS	(9)

 /* Bits in MMDREG_CTRL1 */
 /* Reset */
 #define MDIO_MMDREG_CTRL1_RESET_LBN	(15)
 #define MDIO_MMDREG_CTRL1_RESET_WIDTH	(1)
 /* Loopback */
 /* Loopback bit for WIS, PCS, PHYSX and DTEXS */
 #define MDIO_MMDREG_CTRL1_LBACK_LBN	(14)
 #define MDIO_MMDREG_CTRL1_LBACK_WIDTH	(1)
 /* Low power */
 #define MDIO_MMDREG_CTRL1_LPOWER_LBN	(11)
 #define MDIO_MMDREG_CTRL1_LPOWER_WIDTH	(1)

 /* Bits in MMDREG_STAT1 */
 #define MDIO_MMDREG_STAT1_FAULT_LBN	(7)
 #define MDIO_MMDREG_STAT1_FAULT_WIDTH	(1)
 /* Link state */
 #define MDIO_MMDREG_STAT1_LINK_LBN	(2)
 #define MDIO_MMDREG_STAT1_LINK_WIDTH	(1)
 /* Low power ability */
 #define MDIO_MMDREG_STAT1_LPABLE_LBN	(1)
 #define MDIO_MMDREG_STAT1_LPABLE_WIDTH	(1)

 /* Bits in combined ID regs */
 static inline unsigned mdio_id_rev(u32 id) { return id & 0xf; }
 static inline unsigned mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
 extern unsigned mdio_id_oui(u32 id);

 /* Bits in MMDREG_DEVS0/1. Someone thoughtfully layed things out
  * so the 'bit present' bit number of an MMD is the number of
  * that MMD */
 #define DEV_PRESENT_BIT(_b) (1 << _b)

 #define MDIO_MMDREG_DEVS_PHYXS	DEV_PRESENT_BIT(MDIO_MMD_PHYXS)
 #define MDIO_MMDREG_DEVS_PCS	DEV_PRESENT_BIT(MDIO_MMD_PCS)
 #define MDIO_MMDREG_DEVS_PMAPMD	DEV_PRESENT_BIT(MDIO_MMD_PMAPMD)
 #define MDIO_MMDREG_DEVS_AN	DEV_PRESENT_BIT(MDIO_MMD_AN)
 #define MDIO_MMDREG_DEVS_C22EXT	DEV_PRESENT_BIT(MDIO_MMD_C22EXT)

 /* Bits in MMDREG_SPEED */
 #define MDIO_MMDREG_SPEED_10G_LBN	0
 #define MDIO_MMDREG_SPEED_10G_WIDTH	1
 #define MDIO_MMDREG_SPEED_1000M_LBN	4
 #define MDIO_MMDREG_SPEED_1000M_WIDTH	1
 #define MDIO_MMDREG_SPEED_100M_LBN	5
 #define MDIO_MMDREG_SPEED_100M_WIDTH	1
 #define MDIO_MMDREG_SPEED_10M_LBN	6
 #define MDIO_MMDREG_SPEED_10M_WIDTH	1

 /* Bits in MMDREG_STAT2 */
 #define MDIO_MMDREG_STAT2_PRESENT_VAL	(2)
 #define MDIO_MMDREG_STAT2_PRESENT_LBN	(14)
 #define MDIO_MMDREG_STAT2_PRESENT_WIDTH (2)

 /* Bits in MMDREG_TXDIS */
 #define MDIO_MMDREG_TXDIS_GLOBAL_LBN    (0)
 #define MDIO_MMDREG_TXDIS_GLOBAL_WIDTH  (1)

 /* MMD-specific bits, ordered by MMD, then register */
 #define MDIO_PMAPMD_CTRL1_LBACK_LBN	(0)
 #define MDIO_PMAPMD_CTRL1_LBACK_WIDTH	(1)

 /* PMA type (4 bits) */
 #define MDIO_PMAPMD_CTRL2_10G_CX4	(0x0)
 #define MDIO_PMAPMD_CTRL2_10G_EW	(0x1)
 #define MDIO_PMAPMD_CTRL2_10G_LW	(0x2)
 #define MDIO_PMAPMD_CTRL2_10G_SW	(0x3)
 #define MDIO_PMAPMD_CTRL2_10G_LX4	(0x4)
 #define MDIO_PMAPMD_CTRL2_10G_ER	(0x5)
 #define MDIO_PMAPMD_CTRL2_10G_LR	(0x6)
 #define MDIO_PMAPMD_CTRL2_10G_SR	(0x7)
 /* Reserved */
 #define MDIO_PMAPMD_CTRL2_10G_BT	(0x9)
 /* Reserved */
 /* Reserved */
 #define MDIO_PMAPMD_CTRL2_1G_BT		(0xc)
 /* Reserved */
 #define MDIO_PMAPMD_CTRL2_100_BT	(0xe)
 #define MDIO_PMAPMD_CTRL2_10_BT		(0xf)
 #define MDIO_PMAPMD_CTRL2_TYPE_MASK	(0xf)

 /* PMA 10GBT registers */
 #define MDIO_PMAPMD_10GBT_TXPWR		(131)
 #define MDIO_PMAPMD_10GBT_TXPWR_SHORT_LBN (0)
 #define MDIO_PMAPMD_10GBT_TXPWR_SHORT_WIDTH (1)

 /* PHY XGXS Status 2 */
 #define MDIO_PHYXS_STATUS2              (8)
 #define MDIO_PHYXS_STATUS2_RX_FAULT_LBN 10

 /* PHY XGXS lane state */
 #define MDIO_PHYXS_LANE_STATE		(0x18)
 #define MDIO_PHYXS_LANE_ALIGNED_LBN	(12)

 /* AN registers */
 #define MDIO_AN_CTRL_XNP_LBN		13
 #define MDIO_AN_STATUS			(1)
 #define MDIO_AN_STATUS_XNP_LBN		(7)
 #define MDIO_AN_STATUS_PAGE_LBN		(6)
 #define MDIO_AN_STATUS_AN_DONE_LBN	(5)
 #define MDIO_AN_STATUS_LP_AN_CAP_LBN	(0)

 #define MDIO_AN_ADVERTISE		16
 #define MDIO_AN_ADVERTISE_XNP_LBN	12
 #define MDIO_AN_LPA			19
 #define MDIO_AN_XNP			22
 #define MDIO_AN_LPA_XNP			25

 #define MDIO_AN_10GBT_CTRL		32
 #define MDIO_AN_10GBT_CTRL_ADV_10G_LBN	12
 #define MDIO_AN_10GBT_STATUS		(33)
 #define MDIO_AN_10GBT_STATUS_MS_FLT_LBN (15) /* MASTER/SLAVE config fault */
 #define MDIO_AN_10GBT_STATUS_MS_LBN     (14) /* MASTER/SLAVE config */
 #define MDIO_AN_10GBT_STATUS_LOC_OK_LBN (13) /* Local OK */
 #define MDIO_AN_10GBT_STATUS_REM_OK_LBN (12) /* Remote OK */
 #define MDIO_AN_10GBT_STATUS_LP_10G_LBN (11) /* Link partner is 10GBT capable */
 #define MDIO_AN_10GBT_STATUS_LP_LTA_LBN (10) /* LP loop timing ability */
 #define MDIO_AN_10GBT_STATUS_LP_TRR_LBN (9)  /* LP Training Reset Request */


 /* Packing of the prt and dev arguments of clause 45 style MDIO into a
  * single int so they can be passed into the mdio_read/write functions
  * that currently exist. Note that as Falcon is the only current user,
  * the packed form is chosen to match what Falcon needs to write into
  * a register. This is checked at compile-time so do not change it. If
  * your target chip needs things layed out differently you will need
  * to unpack the arguments in your chip-specific mdio functions.
  */
  /* These are defined by the standard. */
 #define MDIO45_PRT_ID_WIDTH  (5)
 #define MDIO45_DEV_ID_WIDTH  (5)

 /* The prt ID is just packed in immediately to the left of the dev ID */
 #define MDIO45_PRT_DEV_WIDTH (MDIO45_PRT_ID_WIDTH + MDIO45_DEV_ID_WIDTH)

 #define MDIO45_PRT_ID_MASK   ((1 << MDIO45_PRT_DEV_WIDTH) - 1)
 /* This is the prt + dev extended by 1 bit to hold the 'is clause 45' flag. */
 #define MDIO45_XPRT_ID_WIDTH   (MDIO45_PRT_DEV_WIDTH + 1)
 #define MDIO45_XPRT_ID_MASK   ((1 << MDIO45_XPRT_ID_WIDTH) - 1)
 #define MDIO45_XPRT_ID_IS10G   (1 << (MDIO45_XPRT_ID_WIDTH - 1))


 #define MDIO45_PRT_ID_COMP_LBN   MDIO45_DEV_ID_WIDTH
 #define MDIO45_PRT_ID_COMP_WIDTH  MDIO45_PRT_ID_WIDTH
 #define MDIO45_DEV_ID_COMP_LBN    0
 #define MDIO45_DEV_ID_COMP_WIDTH  MDIO45_DEV_ID_WIDTH

 /* Compose port and device into a phy_id */
 static inline int mdio_clause45_pack(u8 prt, u8 dev)
 {
 	efx_dword_t phy_id;
 	EFX_POPULATE_DWORD_2(phy_id, MDIO45_PRT_ID_COMP, prt,
 			     MDIO45_DEV_ID_COMP, dev);
 	return MDIO45_XPRT_ID_IS10G | EFX_DWORD_VAL(phy_id);
 }

 static inline void mdio_clause45_unpack(u32 val, u8 *prt, u8 *dev)
 {
 	efx_dword_t phy_id;
 	EFX_POPULATE_DWORD_1(phy_id, EFX_DWORD_0, val);
 	*prt = EFX_DWORD_FIELD(phy_id, MDIO45_PRT_ID_COMP);
 	*dev = EFX_DWORD_FIELD(phy_id, MDIO45_DEV_ID_COMP);
 }

 static inline int mdio_clause45_read(struct efx_nic *efx,
 				     u8 prt, u8 dev, u16 addr)
 {
 	return efx->mii.mdio_read(efx->net_dev,
 				  mdio_clause45_pack(prt, dev), addr);
 }

 static inline void mdio_clause45_write(struct efx_nic *efx,
 				       u8 prt, u8 dev, u16 addr, int value)
 {
 	efx->mii.mdio_write(efx->net_dev,
 			    mdio_clause45_pack(prt, dev), addr, value);
 }


 static inline u32 mdio_clause45_read_id(struct efx_nic *efx, int mmd)
 {
 	int phy_id = efx->mii.phy_id;
 	u16 id_low = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDLOW);
 	u16 id_hi = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDHI);
 	return (id_hi << 16) | (id_low);
 }

 static inline bool mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
 {
 	int i, lane_status;
 	bool sync;

 	for (i = 0; i < 2; ++i)
 		lane_status = mdio_clause45_read(efx, efx->mii.phy_id,
 						 MDIO_MMD_PHYXS,
 						 MDIO_PHYXS_LANE_STATE);

 	sync = !!(lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN));
 	if (!sync)
 		EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
 	return sync;
 }

 extern const char *mdio_clause45_mmd_name(int mmd);

 /*
  * Reset a specific MMD and wait for reset to clear.
  * Return number of spins left (>0) on success, -%ETIMEDOUT on failure.
  *
  * This function will sleep
  */
 extern int mdio_clause45_reset_mmd(struct efx_nic *efx, int mmd,
 				   int spins, int spintime);

 /* As mdio_clause45_check_mmd but for multiple MMDs */
 int mdio_clause45_check_mmds(struct efx_nic *efx,
 			     unsigned int mmd_mask, unsigned int fatal_mask);

 /* Check the link status of specified mmds in bit mask */
 extern bool mdio_clause45_links_ok(struct efx_nic *efx,
 				   unsigned int mmd_mask);

 /* Generic transmit disable support though PMAPMD */
 extern void mdio_clause45_transmit_disable(struct efx_nic *efx);

 /* Generic part of reconfigure: set/clear loopback bits */
 extern void mdio_clause45_phy_reconfigure(struct efx_nic *efx);

 /* Set the power state of the specified MMDs */
 extern void mdio_clause45_set_mmds_lpower(struct efx_nic *efx,
 					  int low_power, unsigned int mmd_mask);

 /* Read (some of) the PHY settings over MDIO */
 extern void mdio_clause45_get_settings(struct efx_nic *efx,
 				       struct ethtool_cmd *ecmd);

 /* Read (some of) the PHY settings over MDIO */
 extern void
 mdio_clause45_get_settings_ext(struct efx_nic *efx, struct ethtool_cmd *ecmd,
 			       u32 xnp, u32 xnp_lpa);

 /* Set (some of) the PHY settings over MDIO */
 extern int mdio_clause45_set_settings(struct efx_nic *efx,
 				      struct ethtool_cmd *ecmd);

 /* Set pause parameters to be advertised through AN (if available) */
 extern void mdio_clause45_set_pause(struct efx_nic *efx);

 /* Get pause parameters from AN if available (otherwise return
  * requested pause parameters)
  */
 enum efx_fc_type mdio_clause45_get_pause(struct efx_nic *efx);

 /* Wait for specified MMDs to exit reset within a timeout */
 extern int mdio_clause45_wait_reset_mmds(struct efx_nic *efx,
 					 unsigned int mmd_mask);

 /* Set or clear flag, debouncing */
 extern void mdio_clause45_set_flag(struct efx_nic *efx, u8 prt, u8 dev,
 				   u16 addr, int bit, bool sense);

 #endif /* EFX_MDIO_10G_H */
	/****************************************************************************
	* Driver for Solarflare Solarstorm network controllers and boards
	* Copyright 2006-2008 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 EFX_MDIO_10G_H
	#define EFX_MDIO_10G_H

	/*
	* Definitions needed for doing 10G MDIO as specified in clause 45
	* MDIO, which do not appear in Linux yet. Also some helper functions.
	*/

	#include "efx.h"
	#include "boards.h"

	/* Numbering of the MDIO Manageable Devices (MMDs) */
	/* Physical Medium Attachment/ Physical Medium Dependent sublayer */
	#define MDIO_MMD_PMAPMD (1)
	/* WAN Interface Sublayer */
	#define MDIO_MMD_WIS (2)
	/* Physical Coding Sublayer */
	#define MDIO_MMD_PCS (3)
	/* PHY Extender Sublayer */
	#define MDIO_MMD_PHYXS (4)
	/* Extender Sublayer */
	#define MDIO_MMD_DTEXS (5)
	/* Transmission convergence */
	#define MDIO_MMD_TC (6)
	/* Auto negotiation */
	#define MDIO_MMD_AN (7)
	/* Clause 22 extension */
	#define MDIO_MMD_C22EXT 29

	/* Generic register locations */
	#define MDIO_MMDREG_CTRL1 (0)
	#define MDIO_MMDREG_STAT1 (1)
	#define MDIO_MMDREG_IDHI (2)
	#define MDIO_MMDREG_IDLOW (3)
	#define MDIO_MMDREG_SPEED (4)
	#define MDIO_MMDREG_DEVS0 (5)
	#define MDIO_MMDREG_DEVS1 (6)
	#define MDIO_MMDREG_CTRL2 (7)
	#define MDIO_MMDREG_STAT2 (8)
	#define MDIO_MMDREG_TXDIS (9)

	/* Bits in MMDREG_CTRL1 */
	/* Reset */
	#define MDIO_MMDREG_CTRL1_RESET_LBN (15)
	#define MDIO_MMDREG_CTRL1_RESET_WIDTH (1)
	/* Loopback */
	/* Loopback bit for WIS, PCS, PHYSX and DTEXS */
	#define MDIO_MMDREG_CTRL1_LBACK_LBN (14)
	#define MDIO_MMDREG_CTRL1_LBACK_WIDTH (1)
	/* Low power */
	#define MDIO_MMDREG_CTRL1_LPOWER_LBN (11)
	#define MDIO_MMDREG_CTRL1_LPOWER_WIDTH (1)

	/* Bits in MMDREG_STAT1 */
	#define MDIO_MMDREG_STAT1_FAULT_LBN (7)
	#define MDIO_MMDREG_STAT1_FAULT_WIDTH (1)
	/* Link state */
	#define MDIO_MMDREG_STAT1_LINK_LBN (2)
	#define MDIO_MMDREG_STAT1_LINK_WIDTH (1)
	/* Low power ability */
	#define MDIO_MMDREG_STAT1_LPABLE_LBN (1)
	#define MDIO_MMDREG_STAT1_LPABLE_WIDTH (1)

	/* Bits in combined ID regs */
	static inline unsigned mdio_id_rev(u32 id) { return id & 0xf; }
	static inline unsigned mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
	extern unsigned mdio_id_oui(u32 id);

	/* Bits in MMDREG_DEVS0/1. Someone thoughtfully layed things out
	* so the 'bit present' bit number of an MMD is the number of
	* that MMD */
	#define DEV_PRESENT_BIT(_b) (1 << _b)

	#define MDIO_MMDREG_DEVS_PHYXS DEV_PRESENT_BIT(MDIO_MMD_PHYXS)
	#define MDIO_MMDREG_DEVS_PCS DEV_PRESENT_BIT(MDIO_MMD_PCS)
	#define MDIO_MMDREG_DEVS_PMAPMD DEV_PRESENT_BIT(MDIO_MMD_PMAPMD)
	#define MDIO_MMDREG_DEVS_AN DEV_PRESENT_BIT(MDIO_MMD_AN)
	#define MDIO_MMDREG_DEVS_C22EXT DEV_PRESENT_BIT(MDIO_MMD_C22EXT)

	/* Bits in MMDREG_SPEED */
	#define MDIO_MMDREG_SPEED_10G_LBN 0
	#define MDIO_MMDREG_SPEED_10G_WIDTH 1
	#define MDIO_MMDREG_SPEED_1000M_LBN 4
	#define MDIO_MMDREG_SPEED_1000M_WIDTH 1
	#define MDIO_MMDREG_SPEED_100M_LBN 5
	#define MDIO_MMDREG_SPEED_100M_WIDTH 1
	#define MDIO_MMDREG_SPEED_10M_LBN 6
	#define MDIO_MMDREG_SPEED_10M_WIDTH 1

	/* Bits in MMDREG_STAT2 */
	#define MDIO_MMDREG_STAT2_PRESENT_VAL (2)
	#define MDIO_MMDREG_STAT2_PRESENT_LBN (14)
	#define MDIO_MMDREG_STAT2_PRESENT_WIDTH (2)

	/* Bits in MMDREG_TXDIS */
	#define MDIO_MMDREG_TXDIS_GLOBAL_LBN (0)
	#define MDIO_MMDREG_TXDIS_GLOBAL_WIDTH (1)

	/* MMD-specific bits, ordered by MMD, then register */
	#define MDIO_PMAPMD_CTRL1_LBACK_LBN (0)
	#define MDIO_PMAPMD_CTRL1_LBACK_WIDTH (1)

	/* PMA type (4 bits) */
	#define MDIO_PMAPMD_CTRL2_10G_CX4 (0x0)
	#define MDIO_PMAPMD_CTRL2_10G_EW (0x1)
	#define MDIO_PMAPMD_CTRL2_10G_LW (0x2)
	#define MDIO_PMAPMD_CTRL2_10G_SW (0x3)
	#define MDIO_PMAPMD_CTRL2_10G_LX4 (0x4)
	#define MDIO_PMAPMD_CTRL2_10G_ER (0x5)
	#define MDIO_PMAPMD_CTRL2_10G_LR (0x6)
	#define MDIO_PMAPMD_CTRL2_10G_SR (0x7)
	/* Reserved */
	#define MDIO_PMAPMD_CTRL2_10G_BT (0x9)
	/* Reserved */
	/* Reserved */
	#define MDIO_PMAPMD_CTRL2_1G_BT (0xc)
	/* Reserved */
	#define MDIO_PMAPMD_CTRL2_100_BT (0xe)
	#define MDIO_PMAPMD_CTRL2_10_BT (0xf)
	#define MDIO_PMAPMD_CTRL2_TYPE_MASK (0xf)

	/* PMA 10GBT registers */
	#define MDIO_PMAPMD_10GBT_TXPWR (131)
	#define MDIO_PMAPMD_10GBT_TXPWR_SHORT_LBN (0)
	#define MDIO_PMAPMD_10GBT_TXPWR_SHORT_WIDTH (1)

	/* PHY XGXS Status 2 */
	#define MDIO_PHYXS_STATUS2 (8)
	#define MDIO_PHYXS_STATUS2_RX_FAULT_LBN 10

	/* PHY XGXS lane state */
	#define MDIO_PHYXS_LANE_STATE (0x18)
	#define MDIO_PHYXS_LANE_ALIGNED_LBN (12)

	/* AN registers */
	#define MDIO_AN_CTRL_XNP_LBN 13
	#define MDIO_AN_STATUS (1)
	#define MDIO_AN_STATUS_XNP_LBN (7)
	#define MDIO_AN_STATUS_PAGE_LBN (6)
	#define MDIO_AN_STATUS_AN_DONE_LBN (5)
	#define MDIO_AN_STATUS_LP_AN_CAP_LBN (0)

	#define MDIO_AN_ADVERTISE 16
	#define MDIO_AN_ADVERTISE_XNP_LBN 12
	#define MDIO_AN_LPA 19
	#define MDIO_AN_XNP 22
	#define MDIO_AN_LPA_XNP 25

	#define MDIO_AN_10GBT_CTRL 32
	#define MDIO_AN_10GBT_CTRL_ADV_10G_LBN 12
	#define MDIO_AN_10GBT_STATUS (33)
	#define MDIO_AN_10GBT_STATUS_MS_FLT_LBN (15) /* MASTER/SLAVE config fault */
	#define MDIO_AN_10GBT_STATUS_MS_LBN (14) /* MASTER/SLAVE config */
	#define MDIO_AN_10GBT_STATUS_LOC_OK_LBN (13) /* Local OK */
	#define MDIO_AN_10GBT_STATUS_REM_OK_LBN (12) /* Remote OK */
	#define MDIO_AN_10GBT_STATUS_LP_10G_LBN (11) /* Link partner is 10GBT capable */
	#define MDIO_AN_10GBT_STATUS_LP_LTA_LBN (10) /* LP loop timing ability */
	#define MDIO_AN_10GBT_STATUS_LP_TRR_LBN (9) /* LP Training Reset Request */


	/* Packing of the prt and dev arguments of clause 45 style MDIO into a
	* single int so they can be passed into the mdio_read/write functions
	* that currently exist. Note that as Falcon is the only current user,
	* the packed form is chosen to match what Falcon needs to write into
	* a register. This is checked at compile-time so do not change it. If
	* your target chip needs things layed out differently you will need
	* to unpack the arguments in your chip-specific mdio functions.
	*/
	/* These are defined by the standard. */
	#define MDIO45_PRT_ID_WIDTH (5)
	#define MDIO45_DEV_ID_WIDTH (5)

	/* The prt ID is just packed in immediately to the left of the dev ID */
	#define MDIO45_PRT_DEV_WIDTH (MDIO45_PRT_ID_WIDTH + MDIO45_DEV_ID_WIDTH)

	#define MDIO45_PRT_ID_MASK ((1 << MDIO45_PRT_DEV_WIDTH) - 1)
	/* This is the prt + dev extended by 1 bit to hold the 'is clause 45' flag. */
	#define MDIO45_XPRT_ID_WIDTH (MDIO45_PRT_DEV_WIDTH + 1)
	#define MDIO45_XPRT_ID_MASK ((1 << MDIO45_XPRT_ID_WIDTH) - 1)
	#define MDIO45_XPRT_ID_IS10G (1 << (MDIO45_XPRT_ID_WIDTH - 1))


	#define MDIO45_PRT_ID_COMP_LBN MDIO45_DEV_ID_WIDTH
	#define MDIO45_PRT_ID_COMP_WIDTH MDIO45_PRT_ID_WIDTH
	#define MDIO45_DEV_ID_COMP_LBN 0
	#define MDIO45_DEV_ID_COMP_WIDTH MDIO45_DEV_ID_WIDTH

	/* Compose port and device into a phy_id */
	static inline int mdio_clause45_pack(u8 prt, u8 dev)
	{
	efx_dword_t phy_id;
	EFX_POPULATE_DWORD_2(phy_id, MDIO45_PRT_ID_COMP, prt,
	MDIO45_DEV_ID_COMP, dev);
	return MDIO45_XPRT_ID_IS10G \| EFX_DWORD_VAL(phy_id);
	}

	static inline void mdio_clause45_unpack(u32 val, u8 prt, u8 dev)
	{
	efx_dword_t phy_id;
	EFX_POPULATE_DWORD_1(phy_id, EFX_DWORD_0, val);
	*prt = EFX_DWORD_FIELD(phy_id, MDIO45_PRT_ID_COMP);
	*dev = EFX_DWORD_FIELD(phy_id, MDIO45_DEV_ID_COMP);
	}

	static inline int mdio_clause45_read(struct efx_nic *efx,
	u8 prt, u8 dev, u16 addr)
	{
	return efx->mii.mdio_read(efx->net_dev,
	mdio_clause45_pack(prt, dev), addr);
	}

	static inline void mdio_clause45_write(struct efx_nic *efx,
	u8 prt, u8 dev, u16 addr, int value)
	{
	efx->mii.mdio_write(efx->net_dev,
	mdio_clause45_pack(prt, dev), addr, value);
	}


	static inline u32 mdio_clause45_read_id(struct efx_nic *efx, int mmd)
	{
	int phy_id = efx->mii.phy_id;
	u16 id_low = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDLOW);
	u16 id_hi = mdio_clause45_read(efx, phy_id, mmd, MDIO_MMDREG_IDHI);
	return (id_hi << 16) \| (id_low);
	}

	static inline bool mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
	{
	int i, lane_status;
	bool sync;

	for (i = 0; i < 2; ++i)
	lane_status = mdio_clause45_read(efx, efx->mii.phy_id,
	MDIO_MMD_PHYXS,
	MDIO_PHYXS_LANE_STATE);

	sync = !!(lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN));
	if (!sync)
	EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
	return sync;
	}

	extern const char *mdio_clause45_mmd_name(int mmd);

	/*
	* Reset a specific MMD and wait for reset to clear.
	* Return number of spins left (>0) on success, -%ETIMEDOUT on failure.
	*
	* This function will sleep
	*/
	extern int mdio_clause45_reset_mmd(struct efx_nic *efx, int mmd,
	int spins, int spintime);

	/* As mdio_clause45_check_mmd but for multiple MMDs */
	int mdio_clause45_check_mmds(struct efx_nic *efx,
	unsigned int mmd_mask, unsigned int fatal_mask);

	/* Check the link status of specified mmds in bit mask */
	extern bool mdio_clause45_links_ok(struct efx_nic *efx,
	unsigned int mmd_mask);

	/* Generic transmit disable support though PMAPMD */
	extern void mdio_clause45_transmit_disable(struct efx_nic *efx);

	/* Generic part of reconfigure: set/clear loopback bits */
	extern void mdio_clause45_phy_reconfigure(struct efx_nic *efx);

	/* Set the power state of the specified MMDs */
	extern void mdio_clause45_set_mmds_lpower(struct efx_nic *efx,
	int low_power, unsigned int mmd_mask);

	/* Read (some of) the PHY settings over MDIO */
	extern void mdio_clause45_get_settings(struct efx_nic *efx,
	struct ethtool_cmd *ecmd);

	/* Read (some of) the PHY settings over MDIO */
	extern void
	mdio_clause45_get_settings_ext(struct efx_nic efx, struct ethtool_cmd ecmd,
	u32 xnp, u32 xnp_lpa);

	/* Set (some of) the PHY settings over MDIO */
	extern int mdio_clause45_set_settings(struct efx_nic *efx,
	struct ethtool_cmd *ecmd);

	/* Set pause parameters to be advertised through AN (if available) */
	extern void mdio_clause45_set_pause(struct efx_nic *efx);

	/* Get pause parameters from AN if available (otherwise return
	* requested pause parameters)
	*/
	enum efx_fc_type mdio_clause45_get_pause(struct efx_nic *efx);

	/* Wait for specified MMDs to exit reset within a timeout */
	extern int mdio_clause45_wait_reset_mmds(struct efx_nic *efx,
	unsigned int mmd_mask);

	/* Set or clear flag, debouncing */
	extern void mdio_clause45_set_flag(struct efx_nic *efx, u8 prt, u8 dev,
	u16 addr, int bit, bool sense);

	#endif /* EFX_MDIO_10G_H */