/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* 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 EFX_MDIO_10G_H
#define EFX_MDIO_10G_H
#include <linux/mdio.h>
/*
* Helper functions for doing 10G MDIO as specified in IEEE 802.3 clause 45.
*/
#include "efx.h"
static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; }
static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
extern unsigned efx_mdio_id_oui(u32 id);
static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr)
{
return efx->mdio.mdio_read(efx->net_dev, efx->mdio.prtad, devad, addr);
}
static inline void
efx_mdio_write(struct efx_nic *efx, int devad, int addr, int value)
{
efx->mdio.mdio_write(efx->net_dev, efx->mdio.prtad, devad, addr, value);
}
static inline u32 efx_mdio_read_id(struct efx_nic *efx, int mmd)
{
u16 id_low = efx_mdio_read(efx, mmd, MDIO_DEVID2);
u16 id_hi = efx_mdio_read(efx, mmd, MDIO_DEVID1);
return (id_hi << 16) | (id_low);
}
static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx)
{
int i, lane_status;
bool sync;
for (i = 0; i < 2; ++i)
lane_status = efx_mdio_read(efx, MDIO_MMD_PHYXS,
MDIO_PHYXS_LNSTAT);
sync = !!(lane_status & MDIO_PHYXS_LNSTAT_ALIGN);
if (!sync)
netif_dbg(efx, hw, efx->net_dev, "XGXS lane status: %x\n",
lane_status);
return sync;
}
extern const char *efx_mdio_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 efx_mdio_reset_mmd(struct efx_nic *efx, int mmd,
int spins, int spintime);
/* As efx_mdio_check_mmd but for multiple MMDs */
int efx_mdio_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 efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
/* Generic transmit disable support though PMAPMD */
extern void efx_mdio_transmit_disable(struct efx_nic *efx);
/* Generic part of reconfigure: set/clear loopback bits */
extern void efx_mdio_phy_reconfigure(struct efx_nic *efx);
/* Set the power state of the specified MMDs */
extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
int low_power, unsigned int mmd_mask);
/* Set (some of) the PHY settings over MDIO */
extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
/* Push advertising flags and restart autonegotiation */
extern void efx_mdio_an_reconfigure(struct efx_nic *efx);
/* Get pause parameters from AN if available (otherwise return
* requested pause parameters)
*/
enum efx_fc_type efx_mdio_get_pause(struct efx_nic *efx);
/* Wait for specified MMDs to exit reset within a timeout */
extern int efx_mdio_wait_reset_mmds(struct efx_nic *efx,
unsigned int mmd_mask);
/* Set or clear flag, debouncing */
static inline void
efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr,
int mask, bool state)
{
mdio_set_flag(&efx->mdio, efx->mdio.prtad, devad, addr, mask, state);
}
/* Liveness self-test for MDIO PHYs */
extern int efx_mdio_test_alive(struct efx_nic *efx);
#endif /* EFX_MDIO_10G_H */
