/* marvell_read_status
*
* Generic status code does not detect Fiber correctly!
* Description:
* Check the link, then figure out the current state
* by comparing what we advertise with what the link partner
* advertises. Start by checking the gigabit possibilities,
* then move on to 10/100.
*/
static int marvell_read_status(struct phy_device *phydev)
{
int adv;
int err;
int lpa;
int lpagb;
int status = 0;
/* Update the link, but return if there
* was an error */
err = genphy_update_link(phydev);
if (err)
return err;
if (AUTONEG_ENABLE == phydev->autoneg) {
status = phy_read(phydev, MII_M1011_PHY_STATUS);
if (status < 0)
return status;
lpa = phy_read(phydev, MII_LPA);
if (lpa < 0)
return lpa;
lpagb = phy_read(phydev, MII_STAT1000);
if (lpagb < 0)
return lpagb;
adv = phy_read(phydev, MII_ADVERTISE);
if (adv < 0)
return adv;
phydev->lp_advertising = mii_stat1000_to_ethtool_lpa_t(lpagb) |
mii_lpa_to_ethtool_lpa_t(lpa);
lpa &= adv;
if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
status = status & MII_M1011_PHY_STATUS_SPD_MASK;
phydev->pause = phydev->asym_pause = 0;
switch (status) {
case MII_M1011_PHY_STATUS_1000:
phydev->speed = SPEED_1000;
break;
case MII_M1011_PHY_STATUS_100:
phydev->speed = SPEED_100;
break;
default:
phydev->speed = SPEED_10;
break;
}
if (phydev->duplex == DUPLEX_FULL) {
phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
}
} else {
int bmcr = phy_read(phydev, MII_BMCR);
if (bmcr < 0)
return bmcr;
if (bmcr & BMCR_FULLDPLX)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
if (bmcr & BMCR_SPEED1000)
phydev->speed = SPEED_1000;
else if (bmcr & BMCR_SPEED100)
phydev->speed = SPEED_100;
else
phydev->speed = SPEED_10;
phydev->pause = phydev->asym_pause = 0;
phydev->lp_advertising = 0;
}
return 0;
}
static int mv3310_read_status(struct phy_device *phydev)
{
u32 mmd_mask = phydev->c45_ids.devices_in_package;
int val;
/* The vendor devads do not report link status. Avoid the PHYXS
* instance as there are three, and its status depends on the MAC
* being appropriately configured for the negotiated speed.
*/
mmd_mask &= ~(BIT(MDIO_MMD_VEND1) | BIT(MDIO_MMD_VEND2) |
BIT(MDIO_MMD_PHYXS));
phydev->speed = SPEED_UNKNOWN;
phydev->duplex = DUPLEX_UNKNOWN;
phydev->lp_advertising = 0;
phydev->link = 0;
phydev->pause = 0;
phydev->asym_pause = 0;
phydev->mdix = 0;
val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
if (val < 0)
return val;
if (val & MDIO_STAT1_LSTATUS)
return mv3310_read_10gbr_status(phydev);
val = genphy_c45_read_link(phydev, mmd_mask);
if (val < 0)
return val;
phydev->link = val > 0 ? 1 : 0;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
if (val < 0)
return val;
if (val & MDIO_AN_STAT1_COMPLETE) {
val = genphy_c45_read_lpa(phydev);
if (val < 0)
return val;
/* Read the link partner's 1G advertisment */
val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_STAT1000);
if (val < 0)
return val;
phydev->lp_advertising |= mii_stat1000_to_ethtool_lpa_t(val);
if (phydev->autoneg == AUTONEG_ENABLE)
phy_resolve_aneg_linkmode(phydev);
}
if (phydev->autoneg != AUTONEG_ENABLE) {
val = genphy_c45_read_pma(phydev);
if (val < 0)
return val;
}
if (phydev->speed == SPEED_10000) {
val = genphy_c45_read_mdix(phydev);
if (val < 0)
return val;
} else {
val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_PAIRSWAP);
if (val < 0)
return val;
switch (val & MV_PCS_PAIRSWAP_MASK) {
case MV_PCS_PAIRSWAP_AB:
phydev->mdix = ETH_TP_MDI_X;
break;
case MV_PCS_PAIRSWAP_NONE:
phydev->mdix = ETH_TP_MDI;
break;
default:
phydev->mdix = ETH_TP_MDI_INVALID;
break;
}
}
mv3310_update_interface(phydev);
return 0;
}
/**
* mii_ethtool_get_link_ksettings - get settings that are specified in @cmd
* @mii: MII interface
* @cmd: requested ethtool_link_ksettings
*
* The @cmd parameter is expected to have been cleared before calling
* mii_ethtool_get_link_ksettings().
*
* Returns 0 for success, negative on error.
*/
int mii_ethtool_get_link_ksettings(struct mii_if_info *mii,
struct ethtool_link_ksettings *cmd)
{
struct net_device *dev = mii->dev;
u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0;
u32 nego, supported, advertising, lp_advertising;
supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
if (mii->supports_gmii)
supported |= SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full;
/* only supports twisted-pair */
cmd->base.port = PORT_MII;
/* this isn't fully supported at higher layers */
cmd->base.phy_address = mii->phy_id;
cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22;
advertising = ADVERTISED_TP | ADVERTISED_MII;
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR);
if (mii->supports_gmii) {
ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
}
if (bmcr & BMCR_ANENABLE) {
advertising |= ADVERTISED_Autoneg;
cmd->base.autoneg = AUTONEG_ENABLE;
advertising |= mii_get_an(mii, MII_ADVERTISE);
if (mii->supports_gmii)
advertising |= mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
if (bmsr & BMSR_ANEGCOMPLETE) {
lp_advertising = mii_get_an(mii, MII_LPA);
lp_advertising |=
mii_stat1000_to_ethtool_lpa_t(stat1000);
} else {
lp_advertising = 0;
}
nego = advertising & lp_advertising;
if (nego & (ADVERTISED_1000baseT_Full |
ADVERTISED_1000baseT_Half)) {
cmd->base.speed = SPEED_1000;
cmd->base.duplex = !!(nego & ADVERTISED_1000baseT_Full);
} else if (nego & (ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half)) {
cmd->base.speed = SPEED_100;
cmd->base.duplex = !!(nego & ADVERTISED_100baseT_Full);
} else {
cmd->base.speed = SPEED_10;
cmd->base.duplex = !!(nego & ADVERTISED_10baseT_Full);
}
} else {
cmd->base.autoneg = AUTONEG_DISABLE;
cmd->base.speed = ((bmcr & BMCR_SPEED1000 &&
(bmcr & BMCR_SPEED100) == 0) ?
SPEED_1000 :
((bmcr & BMCR_SPEED100) ?
SPEED_100 : SPEED_10));
cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ?
DUPLEX_FULL : DUPLEX_HALF;
lp_advertising = 0;
}
mii->full_duplex = cmd->base.duplex;
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
lp_advertising);
/* ignore maxtxpkt, maxrxpkt for now */
return 0;
}
/**
* mii_ethtool_gset - get settings that are specified in @ecmd
* @mii: MII interface
* @ecmd: requested ethtool_cmd
*
* The @ecmd parameter is expected to have been cleared before calling
* mii_ethtool_gset().
*
* Returns 0 for success, negative on error.
*/
int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0;
u32 nego;
ecmd->supported =
(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
if (mii->supports_gmii)
ecmd->supported |= SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full;
/* only supports twisted-pair */
ecmd->port = PORT_MII;
/* only supports internal transceiver */
ecmd->transceiver = XCVR_INTERNAL;
/* this isn't fully supported at higher layers */
ecmd->phy_address = mii->phy_id;
ecmd->mdio_support = ETH_MDIO_SUPPORTS_C22;
ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR);
if (mii->supports_gmii) {
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;
ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE);
if (mii->supports_gmii)
ecmd->advertising |=
mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
if (bmsr & BMSR_ANEGCOMPLETE) {
ecmd->lp_advertising = mii_get_an(mii, MII_LPA);
ecmd->lp_advertising |=
mii_stat1000_to_ethtool_lpa_t(stat1000);
} else {
ecmd->lp_advertising = 0;
}
nego = ecmd->advertising & ecmd->lp_advertising;
if (nego & (ADVERTISED_1000baseT_Full |
ADVERTISED_1000baseT_Half)) {
ethtool_cmd_speed_set(ecmd, SPEED_1000);
ecmd->duplex = !!(nego & ADVERTISED_1000baseT_Full);
} else if (nego & (ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half)) {
ethtool_cmd_speed_set(ecmd, SPEED_100);
ecmd->duplex = !!(nego & ADVERTISED_100baseT_Full);
} else {
ethtool_cmd_speed_set(ecmd, SPEED_10);
ecmd->duplex = !!(nego & ADVERTISED_10baseT_Full);
}
} else {
ecmd->autoneg = AUTONEG_DISABLE;
ethtool_cmd_speed_set(ecmd,
((bmcr & BMCR_SPEED1000 &&
(bmcr & BMCR_SPEED100) == 0) ?
SPEED_1000 :
((bmcr & BMCR_SPEED100) ?
SPEED_100 : SPEED_10)));
ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
}
mii->full_duplex = ecmd->duplex;
/* ignore maxtxpkt, maxrxpkt for now */
return 0;
}
