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mdio: Expose 10GBASE-T MDI-X status via ethtool

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This is available in a standard MDIO register in 10GBASE-T PHYs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2009-06-10 05:28:04 +00:00
committed by David S. Miller
parent b8facca01b
commit d005ba6cc8
2 changed files with 26 additions and 0 deletions
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17
drivers/net/mdio.c
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@@ -296,6 +296,23 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
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);