diff options
Diffstat (limited to 'drivers/net/mii.c')
| -rw-r--r-- | drivers/net/mii.c | 91 |
1 files changed, 57 insertions, 34 deletions
diff --git a/drivers/net/mii.c b/drivers/net/mii.c index 92056051f269..d81a5d22a3a9 100644 --- a/drivers/net/mii.c +++ b/drivers/net/mii.c @@ -31,7 +31,27 @@ #include <linux/module.h> #include <linux/netdevice.h> #include <linux/ethtool.h> -#include <linux/mii.h> +#include <linux/mdio.h> + +static u32 mii_get_an(struct mii_if_info *mii, u16 addr) +{ + u32 result = 0; + int advert; + + advert = mii->mdio_read(mii->dev, mii->phy_id, addr); + if (advert & LPA_LPACK) + result |= ADVERTISED_Autoneg; + if (advert & ADVERTISE_10HALF) + result |= ADVERTISED_10baseT_Half; + if (advert & ADVERTISE_10FULL) + result |= ADVERTISED_10baseT_Full; + if (advert & ADVERTISE_100HALF) + result |= ADVERTISED_100baseT_Half; + if (advert & ADVERTISE_100FULL) + result |= ADVERTISED_100baseT_Full; + + return result; +} /** * mii_ethtool_gset - get settings that are specified in @ecmd @@ -43,8 +63,8 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) { struct net_device *dev = mii->dev; - u32 advert, bmcr, lpa, nego; - u32 advert2 = 0, bmcr2 = 0, lpa2 = 0; + u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0; + u32 nego; ecmd->supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | @@ -62,50 +82,51 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) /* this isn't fully supported at higher layers */ ecmd->phy_address = mii->phy_id; + ecmd->mdio_support = MDIO_SUPPORTS_C22; ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII; - advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE); - if (mii->supports_gmii) - advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); - - if (advert & ADVERTISE_10HALF) - ecmd->advertising |= ADVERTISED_10baseT_Half; - if (advert & ADVERTISE_10FULL) - ecmd->advertising |= ADVERTISED_10baseT_Full; - if (advert & ADVERTISE_100HALF) - ecmd->advertising |= ADVERTISED_100baseT_Half; - if (advert & ADVERTISE_100FULL) - ecmd->advertising |= ADVERTISED_100baseT_Full; - if (advert2 & ADVERTISE_1000HALF) - ecmd->advertising |= ADVERTISED_1000baseT_Half; - if (advert2 & ADVERTISE_1000FULL) - ecmd->advertising |= ADVERTISED_1000baseT_Full; bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); - lpa = mii->mdio_read(dev, mii->phy_id, MII_LPA); + bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR); if (mii->supports_gmii) { - bmcr2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); - lpa2 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000); + ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); + stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000); } if (bmcr & BMCR_ANENABLE) { ecmd->advertising |= ADVERTISED_Autoneg; ecmd->autoneg = AUTONEG_ENABLE; - nego = mii_nway_result(advert & lpa); - if ((bmcr2 & (ADVERTISE_1000HALF | ADVERTISE_1000FULL)) & - (lpa2 >> 2)) + ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE); + if (ctrl1000 & ADVERTISE_1000HALF) + ecmd->advertising |= ADVERTISED_1000baseT_Half; + if (ctrl1000 & ADVERTISE_1000FULL) + ecmd->advertising |= ADVERTISED_1000baseT_Full; + + if (bmsr & BMSR_ANEGCOMPLETE) { + ecmd->lp_advertising = mii_get_an(mii, MII_LPA); + if (stat1000 & LPA_1000HALF) + ecmd->lp_advertising |= + ADVERTISED_1000baseT_Half; + if (stat1000 & LPA_1000FULL) + ecmd->lp_advertising |= + ADVERTISED_1000baseT_Full; + } else { + ecmd->lp_advertising = 0; + } + + nego = ecmd->advertising & ecmd->lp_advertising; + + if (nego & (ADVERTISED_1000baseT_Full | + ADVERTISED_1000baseT_Half)) { ecmd->speed = SPEED_1000; - else if (nego == LPA_100FULL || nego == LPA_100HALF) + ecmd->duplex = !!(nego & ADVERTISED_1000baseT_Full); + } else if (nego & (ADVERTISED_100baseT_Full | + ADVERTISED_100baseT_Half)) { ecmd->speed = SPEED_100; - else - ecmd->speed = SPEED_10; - if ((lpa2 & LPA_1000FULL) || nego == LPA_100FULL || - nego == LPA_10FULL) { - ecmd->duplex = DUPLEX_FULL; - mii->full_duplex = 1; + ecmd->duplex = !!(nego & ADVERTISED_100baseT_Full); } else { - ecmd->duplex = DUPLEX_HALF; - mii->full_duplex = 0; + ecmd->speed = SPEED_10; + ecmd->duplex = !!(nego & ADVERTISED_10baseT_Full); } } else { ecmd->autoneg = AUTONEG_DISABLE; @@ -116,6 +137,8 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } + mii->full_duplex = ecmd->duplex; + /* ignore maxtxpkt, maxrxpkt for now */ return 0; |