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authorBen Hutchings <bhutchings@solarflare.com>2009-06-10 07:28:04 +0200
committerDavid S. Miller <davem@davemloft.net>2009-06-11 11:47:10 +0200
commitd005ba6cc82440d9ebf96f3ec8f79c54578b898f (patch)
tree871a9a75e1fcb6dbf9c8f3aa6944fe6a7baf2068 /drivers
parentqlge: Allow RX buf rings to be > than 4096 bytes. (diff)
downloadlinux-d005ba6cc82440d9ebf96f3ec8f79c54578b898f.tar.xz
linux-d005ba6cc82440d9ebf96f3ec8f79c54578b898f.zip
mdio: Expose 10GBASE-T MDI-X status via ethtool
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/mdio.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/mdio.c b/drivers/net/mdio.c
index 66483035f683..dc45e9856c35 100644
--- a/drivers/net/mdio.c
+++ b/drivers/net/mdio.c
@@ -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);