From 28011cf19b75df9d3f35489a7599a97ec0b3f1a0 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Wed, 16 Nov 2011 18:36:59 -0500 Subject: [PATCH] net: Add ethtool to mii advertisment conversion helpers Translating between ethtool advertisement settings and MII advertisements are common operations for ethernet drivers. This patch adds a set of helper functions that implements the conversion. The patch then modifies a couple of the drivers to use the new functions. Signed-off-by: Matt Carlson Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2.c | 15 +-- drivers/net/ethernet/broadcom/tg3.c | 53 +++------ drivers/net/ethernet/sun/niu.c | 15 +-- drivers/net/mii.c | 46 ++------ drivers/net/phy/phy_device.c | 20 +--- include/linux/mii.h | 166 +++++++++++++++++++++++++++ 6 files changed, 196 insertions(+), 119 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index 7203f37d2ef3..6b7cd1e80ada 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -2064,21 +2064,12 @@ __acquires(&bp->phy_lock) bnx2_read_phy(bp, MII_CTRL1000, &adv1000_reg); adv1000_reg &= PHY_ALL_1000_SPEED; - if (bp->advertising & ADVERTISED_10baseT_Half) - new_adv_reg |= ADVERTISE_10HALF; - if (bp->advertising & ADVERTISED_10baseT_Full) - new_adv_reg |= ADVERTISE_10FULL; - if (bp->advertising & ADVERTISED_100baseT_Half) - new_adv_reg |= ADVERTISE_100HALF; - if (bp->advertising & ADVERTISED_100baseT_Full) - new_adv_reg |= ADVERTISE_100FULL; - if (bp->advertising & ADVERTISED_1000baseT_Full) - new_adv1000_reg |= ADVERTISE_1000FULL; - + new_adv_reg = ethtool_adv_to_mii_100bt(bp->advertising); new_adv_reg |= ADVERTISE_CSMA; - new_adv_reg |= bnx2_phy_get_pause_adv(bp); + new_adv1000_reg |= ethtool_adv_to_mii_1000T(bp->advertising); + if ((adv1000_reg != new_adv1000_reg) || (adv_reg != new_adv_reg) || ((bmcr & BMCR_ANENABLE) == 0)) { diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 365cd47e2298..024ca1d4d028 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -3594,15 +3594,7 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl) u32 val, new_adv; new_adv = ADVERTISE_CSMA; - if (advertise & ADVERTISED_10baseT_Half) - new_adv |= ADVERTISE_10HALF; - if (advertise & ADVERTISED_10baseT_Full) - new_adv |= ADVERTISE_10FULL; - if (advertise & ADVERTISED_100baseT_Half) - new_adv |= ADVERTISE_100HALF; - if (advertise & ADVERTISED_100baseT_Full) - new_adv |= ADVERTISE_100FULL; - + new_adv |= ethtool_adv_to_mii_100bt(advertise); new_adv |= tg3_advert_flowctrl_1000T(flowctrl); err = tg3_writephy(tp, MII_ADVERTISE, new_adv); @@ -3612,11 +3604,7 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl) if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY) goto done; - new_adv = 0; - if (advertise & ADVERTISED_1000baseT_Half) - new_adv |= ADVERTISE_1000HALF; - if (advertise & ADVERTISED_1000baseT_Full) - new_adv |= ADVERTISE_1000FULL; + new_adv = ethtool_adv_to_mii_1000T(advertise); if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 || tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) @@ -3790,14 +3778,7 @@ static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask) { u32 adv_reg, all_mask = 0; - if (mask & ADVERTISED_10baseT_Half) - all_mask |= ADVERTISE_10HALF; - if (mask & ADVERTISED_10baseT_Full) - all_mask |= ADVERTISE_10FULL; - if (mask & ADVERTISED_100baseT_Half) - all_mask |= ADVERTISE_100HALF; - if (mask & ADVERTISED_100baseT_Full) - all_mask |= ADVERTISE_100FULL; + all_mask = ethtool_adv_to_mii_100bt(mask); if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg)) return 0; @@ -3808,11 +3789,7 @@ static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask) if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) { u32 tg3_ctrl; - all_mask = 0; - if (mask & ADVERTISED_1000baseT_Half) - all_mask |= ADVERTISE_1000HALF; - if (mask & ADVERTISED_1000baseT_Full) - all_mask |= ADVERTISE_1000FULL; + all_mask = ethtool_adv_to_mii_1000T(mask); if (tg3_readphy(tp, MII_CTRL1000, &tg3_ctrl)) return 0; @@ -4903,23 +4880,19 @@ static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset) (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) { /* do nothing, just check for link up at the end */ } else if (tp->link_config.autoneg == AUTONEG_ENABLE) { - u32 adv, new_adv; + u32 adv, newadv; err |= tg3_readphy(tp, MII_ADVERTISE, &adv); - new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF | - ADVERTISE_1000XPAUSE | - ADVERTISE_1000XPSE_ASYM | - ADVERTISE_SLCT); + newadv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF | + ADVERTISE_1000XPAUSE | + ADVERTISE_1000XPSE_ASYM | + ADVERTISE_SLCT); - new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl); + newadv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl); + newadv |= ethtool_adv_to_mii_1000X(tp->link_config.advertising); - if (tp->link_config.advertising & ADVERTISED_1000baseT_Half) - new_adv |= ADVERTISE_1000XHALF; - if (tp->link_config.advertising & ADVERTISED_1000baseT_Full) - new_adv |= ADVERTISE_1000XFULL; - - if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) { - tg3_writephy(tp, MII_ADVERTISE, new_adv); + if ((newadv != adv) || !(bmcr & BMCR_ANENABLE)) { + tg3_writephy(tp, MII_ADVERTISE, newadv); bmcr |= BMCR_ANENABLE | BMCR_ANRESTART; tg3_writephy(tp, MII_BMCR, bmcr); diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 3ebeb9d400fb..9997be525089 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -1151,19 +1151,8 @@ static int link_status_mii(struct niu *np, int *link_up_p) supported |= SUPPORTED_1000baseT_Full; lp->supported = supported; - advertising = 0; - if (advert & ADVERTISE_10HALF) - advertising |= ADVERTISED_10baseT_Half; - if (advert & ADVERTISE_10FULL) - advertising |= ADVERTISED_10baseT_Full; - if (advert & ADVERTISE_100HALF) - advertising |= ADVERTISED_100baseT_Half; - if (advert & ADVERTISE_100FULL) - advertising |= ADVERTISED_100baseT_Full; - if (ctrl1000 & ADVERTISE_1000HALF) - advertising |= ADVERTISED_1000baseT_Half; - if (ctrl1000 & ADVERTISE_1000FULL) - advertising |= ADVERTISED_1000baseT_Full; + advertising = mii_adv_to_ethtool_100bt(advert); + advertising |= mii_adv_to_ethtool_1000T(ctrl1000); if (bmcr & BMCR_ANENABLE) { int neg, neg1000; diff --git a/drivers/net/mii.c b/drivers/net/mii.c index c62e7816d548..d0a296272713 100644 --- a/drivers/net/mii.c +++ b/drivers/net/mii.c @@ -41,20 +41,8 @@ static u32 mii_get_an(struct mii_if_info *mii, u16 addr) 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; - if (advert & ADVERTISE_PAUSE_CAP) - result |= ADVERTISED_Pause; - if (advert & ADVERTISE_PAUSE_ASYM) - result |= ADVERTISED_Asym_Pause; - return result; + return result | mii_adv_to_ethtool_100bt(advert); } /** @@ -104,19 +92,13 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) ecmd->autoneg = AUTONEG_ENABLE; 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 (mii->supports_gmii) + ecmd->advertising |= mii_adv_to_ethtool_1000T(ctrl1000); 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; + ecmd->lp_advertising |= + mii_lpa_to_ethtool_1000T(stat1000); } else { ecmd->lp_advertising = 0; } @@ -204,20 +186,10 @@ int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); tmp2 = advert2 & ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL); } - if (ecmd->advertising & ADVERTISED_10baseT_Half) - tmp |= ADVERTISE_10HALF; - if (ecmd->advertising & ADVERTISED_10baseT_Full) - tmp |= ADVERTISE_10FULL; - if (ecmd->advertising & ADVERTISED_100baseT_Half) - tmp |= ADVERTISE_100HALF; - if (ecmd->advertising & ADVERTISED_100baseT_Full) - tmp |= ADVERTISE_100FULL; - if (mii->supports_gmii) { - if (ecmd->advertising & ADVERTISED_1000baseT_Half) - tmp2 |= ADVERTISE_1000HALF; - if (ecmd->advertising & ADVERTISED_1000baseT_Full) - tmp2 |= ADVERTISE_1000FULL; - } + tmp |= ethtool_adv_to_mii_100bt(ecmd->advertising); + + if (mii->supports_gmii) + tmp2 |= ethtool_adv_to_mii_1000T(ecmd->advertising); if (advert != tmp) { mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp); mii->advertising = tmp; diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 83a5a5afec67..edb905f80115 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -563,20 +563,9 @@ static int genphy_config_advert(struct phy_device *phydev) if (adv < 0) return adv; - adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | + adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - if (advertise & ADVERTISED_10baseT_Half) - adv |= ADVERTISE_10HALF; - if (advertise & ADVERTISED_10baseT_Full) - adv |= ADVERTISE_10FULL; - if (advertise & ADVERTISED_100baseT_Half) - adv |= ADVERTISE_100HALF; - if (advertise & ADVERTISED_100baseT_Full) - adv |= ADVERTISE_100FULL; - if (advertise & ADVERTISED_Pause) - adv |= ADVERTISE_PAUSE_CAP; - if (advertise & ADVERTISED_Asym_Pause) - adv |= ADVERTISE_PAUSE_ASYM; + adv |= ethtool_adv_to_mii_100bt(advertise); if (adv != oldadv) { err = phy_write(phydev, MII_ADVERTISE, adv); @@ -595,10 +584,7 @@ static int genphy_config_advert(struct phy_device *phydev) return adv; adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); - if (advertise & SUPPORTED_1000baseT_Half) - adv |= ADVERTISE_1000HALF; - if (advertise & SUPPORTED_1000baseT_Full) - adv |= ADVERTISE_1000FULL; + adv |= ethtool_adv_to_mii_1000T(advertise); if (adv != oldadv) { err = phy_write(phydev, MII_CTRL1000, adv); diff --git a/include/linux/mii.h b/include/linux/mii.h index 27748230aa69..6697b9112014 100644 --- a/include/linux/mii.h +++ b/include/linux/mii.h @@ -9,6 +9,7 @@ #define __LINUX_MII_H__ #include +#include /* Generic MII registers. */ #define MII_BMCR 0x00 /* Basic mode control register */ @@ -239,6 +240,171 @@ static inline unsigned int mii_duplex (unsigned int duplex_lock, return 0; } +/** + * ethtool_adv_to_mii_100bt + * @ethadv: the ethtool advertisement settings + * + * A small helper function that translates ethtool advertisement + * settings to phy autonegotiation advertisements for the + * MII_ADVERTISE register. + */ +static inline u32 ethtool_adv_to_mii_100bt(u32 ethadv) +{ + u32 result = 0; + + if (ethadv & ADVERTISED_10baseT_Half) + result |= ADVERTISE_10HALF; + if (ethadv & ADVERTISED_10baseT_Full) + result |= ADVERTISE_10FULL; + if (ethadv & ADVERTISED_100baseT_Half) + result |= ADVERTISE_100HALF; + if (ethadv & ADVERTISED_100baseT_Full) + result |= ADVERTISE_100FULL; + if (ethadv & ADVERTISED_Pause) + result |= ADVERTISE_PAUSE_CAP; + if (ethadv & ADVERTISED_Asym_Pause) + result |= ADVERTISE_PAUSE_ASYM; + + return result; +} + +/** + * mii_adv_to_ethtool_100bt + * @adv: value of the MII_ADVERTISE register + * + * A small helper function that translates MII_ADVERTISE bits + * to ethtool advertisement settings. + */ +static inline u32 mii_adv_to_ethtool_100bt(u32 adv) +{ + u32 result = 0; + + if (adv & ADVERTISE_10HALF) + result |= ADVERTISED_10baseT_Half; + if (adv & ADVERTISE_10FULL) + result |= ADVERTISED_10baseT_Full; + if (adv & ADVERTISE_100HALF) + result |= ADVERTISED_100baseT_Half; + if (adv & ADVERTISE_100FULL) + result |= ADVERTISED_100baseT_Full; + if (adv & ADVERTISE_PAUSE_CAP) + result |= ADVERTISED_Pause; + if (adv & ADVERTISE_PAUSE_ASYM) + result |= ADVERTISED_Asym_Pause; + + return result; +} + +/** + * ethtool_adv_to_mii_1000T + * @ethadv: the ethtool advertisement settings + * + * A small helper function that translates ethtool advertisement + * settings to phy autonegotiation advertisements for the + * MII_CTRL1000 register when in 1000T mode. + */ +static inline u32 ethtool_adv_to_mii_1000T(u32 ethadv) +{ + u32 result = 0; + + if (ethadv & ADVERTISED_1000baseT_Half) + result |= ADVERTISE_1000HALF; + if (ethadv & ADVERTISED_1000baseT_Full) + result |= ADVERTISE_1000FULL; + + return result; +} + +/** + * mii_adv_to_ethtool_1000T + * @adv: value of the MII_CTRL1000 register + * + * A small helper function that translates MII_CTRL1000 + * bits, when in 1000Base-T mode, to ethtool + * advertisement settings. + */ +static inline u32 mii_adv_to_ethtool_1000T(u32 adv) +{ + u32 result = 0; + + if (adv & ADVERTISE_1000HALF) + result |= ADVERTISED_1000baseT_Half; + if (adv & ADVERTISE_1000FULL) + result |= ADVERTISED_1000baseT_Full; + + return result; +} + +#define mii_lpa_to_ethtool_100bt(lpa) mii_adv_to_ethtool_100bt(lpa) + +/** + * mii_lpa_to_ethtool_1000T + * @adv: value of the MII_STAT1000 register + * + * A small helper function that translates MII_STAT1000 + * bits, when in 1000Base-T mode, to ethtool + * advertisement settings. + */ +static inline u32 mii_lpa_to_ethtool_1000T(u32 lpa) +{ + u32 result = 0; + + if (lpa & LPA_1000HALF) + result |= ADVERTISED_1000baseT_Half; + if (lpa & LPA_1000FULL) + result |= ADVERTISED_1000baseT_Full; + + return result; +} + +/** + * ethtool_adv_to_mii_1000X + * @ethadv: the ethtool advertisement settings + * + * A small helper function that translates ethtool advertisement + * settings to phy autonegotiation advertisements for the + * MII_CTRL1000 register when in 1000Base-X mode. + */ +static inline u32 ethtool_adv_to_mii_1000X(u32 ethadv) +{ + u32 result = 0; + + if (ethadv & ADVERTISED_1000baseT_Half) + result |= ADVERTISE_1000XHALF; + if (ethadv & ADVERTISED_1000baseT_Full) + result |= ADVERTISE_1000XFULL; + if (ethadv & ADVERTISED_Pause) + result |= ADVERTISE_1000XPAUSE; + if (ethadv & ADVERTISED_Asym_Pause) + result |= ADVERTISE_1000XPSE_ASYM; + + return result; +} + +/** + * mii_adv_to_ethtool_1000X + * @adv: value of the MII_CTRL1000 register + * + * A small helper function that translates MII_CTRL1000 + * bits, when in 1000Base-X mode, to ethtool + * advertisement settings. + */ +static inline u32 mii_adv_to_ethtool_1000X(u32 adv) +{ + u32 result = 0; + + if (adv & ADVERTISE_1000XHALF) + result |= ADVERTISED_1000baseT_Half; + if (adv & ADVERTISE_1000XFULL) + result |= ADVERTISED_1000baseT_Full; + if (adv & ADVERTISE_1000XPAUSE) + result |= ADVERTISED_Pause; + if (adv & ADVERTISE_1000XPSE_ASYM) + result |= ADVERTISED_Asym_Pause; + + return result; +} + /** * mii_advertise_flowctrl - get flow control advertisement flags * @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)