#include <linux/mdio.h>
#include <linux/module.h>
+MODULE_DESCRIPTION("Generic support for MDIO-compatible transceivers");
+MODULE_AUTHOR("Copyright 2006-2009 Solarflare Communications Inc.");
+MODULE_LICENSE("GPL");
+
/**
* mdio45_probe - probe for an MDIO (clause 45) device
* @mdio: MDIO interface
if (mmd_mask & (1 << devad)) {
mmd_mask &= ~(1 << devad);
- /* Read twice because link state is latched and a
- * read moves the current state into the register */
+ /* Reset the latched status and fault flags */
mdio->mdio_read(mdio->dev, mdio->prtad,
devad, MDIO_STAT1);
+ if (devad == MDIO_MMD_PMAPMD || devad == MDIO_MMD_PCS ||
+ devad == MDIO_MMD_PHYXS || devad == MDIO_MMD_DTEXS)
+ mdio->mdio_read(mdio->dev, mdio->prtad,
+ devad, MDIO_STAT2);
+
+ /* Check the current status and fault flags */
reg = mdio->mdio_read(mdio->dev, mdio->prtad,
devad, MDIO_STAT1);
- if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
+ if (reg < 0 ||
+ (reg & (MDIO_STAT1_FAULT | MDIO_STAT1_LSTATUS)) !=
+ MDIO_STAT1_LSTATUS)
return false;
}
}
result |= ADVERTISED_100baseT_Half;
if (reg & ADVERTISE_100FULL)
result |= ADVERTISED_100baseT_Full;
+ if (reg & ADVERTISE_PAUSE_CAP)
+ result |= ADVERTISED_Pause;
+ if (reg & ADVERTISE_PAUSE_ASYM)
+ result |= ADVERTISED_Asym_Pause;
return result;
}
ecmd->duplex = (reg & MDIO_CTRL1_FULLDPLX ||
ecmd->speed == SPEED_10000);
}
+
+ /* 10GBASE-T MDI/MDI-X */
+ if (ecmd->port == PORT_TP && ecmd->speed == SPEED_10000) {
+ switch (mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
+ MDIO_PMA_10GBT_SWAPPOL)) {
+ case MDIO_PMA_10GBT_SWAPPOL_ABNX | MDIO_PMA_10GBT_SWAPPOL_CDNX:
+ ecmd->eth_tp_mdix = ETH_TP_MDI;
+ break;
+ case 0:
+ ecmd->eth_tp_mdix = ETH_TP_MDI_X;
+ break;
+ default:
+ /* It's complicated... */
+ ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+ break;
+ }
+ }
}
EXPORT_SYMBOL(mdio45_ethtool_gset_npage);
old_adv = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_AN,
MDIO_AN_ADVERTISE);
- adv = old_adv & ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
- if (ecmd->autoneg)
- adv |= mii_advertise_flowctrl(
- (ecmd->rx_pause ? FLOW_CTRL_RX : 0) |
- (ecmd->tx_pause ? FLOW_CTRL_TX : 0));
+ adv = ((old_adv & ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) |
+ mii_advertise_flowctrl((ecmd->rx_pause ? FLOW_CTRL_RX : 0) |
+ (ecmd->tx_pause ? FLOW_CTRL_TX : 0)));
if (adv != old_adv) {
mdio->mdio_write(mdio->dev, mdio->prtad, MDIO_MMD_AN,
MDIO_AN_ADVERTISE, adv);
cmd = SIOCGMIIREG;
break;
case SIOCGMIIREG:
- break;
case SIOCSMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
break;
default:
return -EOPNOTSUPP;