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665 lines
18 KiB
665 lines
18 KiB
/* |
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mii.c: MII interface library |
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Maintained by Jeff Garzik <[email protected]> |
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Copyright 2001,2002 Jeff Garzik |
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Various code came from myson803.c and other files by |
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Donald Becker. Copyright: |
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Written 1998-2002 by Donald Becker. |
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This software may be used and distributed according |
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to the terms of the GNU General Public License (GPL), |
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incorporated herein by reference. Drivers based on |
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or derived from this code fall under the GPL and must |
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retain the authorship, copyright and license notice. |
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This file is not a complete program and may only be |
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used when the entire operating system is licensed |
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under the GPL. |
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The author may be reached as [email protected], or C/O |
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Scyld Computing Corporation |
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410 Severn Ave., Suite 210 |
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Annapolis MD 21403 |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/netdevice.h> |
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#include <linux/ethtool.h> |
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#include <linux/mii.h> |
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static u32 mii_get_an(struct mii_if_info *mii, u16 addr) |
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{ |
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int advert; |
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advert = mii->mdio_read(mii->dev, mii->phy_id, addr); |
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return mii_lpa_to_ethtool_lpa_t(advert); |
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} |
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/** |
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* mii_ethtool_gset - get settings that are specified in @ecmd |
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* @mii: MII interface |
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* @ecmd: requested ethtool_cmd |
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* |
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* The @ecmd parameter is expected to have been cleared before calling |
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* mii_ethtool_gset(). |
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*/ |
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void mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) |
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{ |
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struct net_device *dev = mii->dev; |
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u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0; |
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u32 nego; |
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ecmd->supported = |
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(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | |
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SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | |
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SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII); |
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if (mii->supports_gmii) |
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ecmd->supported |= SUPPORTED_1000baseT_Half | |
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SUPPORTED_1000baseT_Full; |
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|
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/* only supports twisted-pair */ |
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ecmd->port = PORT_MII; |
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|
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/* only supports internal transceiver */ |
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ecmd->transceiver = XCVR_INTERNAL; |
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/* this isn't fully supported at higher layers */ |
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ecmd->phy_address = mii->phy_id; |
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ecmd->mdio_support = ETH_MDIO_SUPPORTS_C22; |
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ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII; |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR); |
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if (mii->supports_gmii) { |
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ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); |
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stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000); |
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} |
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ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE); |
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if (mii->supports_gmii) |
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ecmd->advertising |= |
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mii_ctrl1000_to_ethtool_adv_t(ctrl1000); |
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|
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if (bmcr & BMCR_ANENABLE) { |
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ecmd->advertising |= ADVERTISED_Autoneg; |
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ecmd->autoneg = AUTONEG_ENABLE; |
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if (bmsr & BMSR_ANEGCOMPLETE) { |
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ecmd->lp_advertising = mii_get_an(mii, MII_LPA); |
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ecmd->lp_advertising |= |
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mii_stat1000_to_ethtool_lpa_t(stat1000); |
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} else { |
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ecmd->lp_advertising = 0; |
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} |
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nego = ecmd->advertising & ecmd->lp_advertising; |
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if (nego & (ADVERTISED_1000baseT_Full | |
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ADVERTISED_1000baseT_Half)) { |
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ethtool_cmd_speed_set(ecmd, SPEED_1000); |
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ecmd->duplex = !!(nego & ADVERTISED_1000baseT_Full); |
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} else if (nego & (ADVERTISED_100baseT_Full | |
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ADVERTISED_100baseT_Half)) { |
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ethtool_cmd_speed_set(ecmd, SPEED_100); |
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ecmd->duplex = !!(nego & ADVERTISED_100baseT_Full); |
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} else { |
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ethtool_cmd_speed_set(ecmd, SPEED_10); |
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ecmd->duplex = !!(nego & ADVERTISED_10baseT_Full); |
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} |
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} else { |
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ecmd->autoneg = AUTONEG_DISABLE; |
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ethtool_cmd_speed_set(ecmd, |
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((bmcr & BMCR_SPEED1000 && |
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(bmcr & BMCR_SPEED100) == 0) ? |
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SPEED_1000 : |
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((bmcr & BMCR_SPEED100) ? |
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SPEED_100 : SPEED_10))); |
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ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; |
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} |
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mii->full_duplex = ecmd->duplex; |
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/* ignore maxtxpkt, maxrxpkt for now */ |
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} |
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/** |
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* mii_ethtool_get_link_ksettings - get settings that are specified in @cmd |
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* @mii: MII interface |
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* @cmd: requested ethtool_link_ksettings |
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* |
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* The @cmd parameter is expected to have been cleared before calling |
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* mii_ethtool_get_link_ksettings(). |
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*/ |
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void mii_ethtool_get_link_ksettings(struct mii_if_info *mii, |
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struct ethtool_link_ksettings *cmd) |
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{ |
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struct net_device *dev = mii->dev; |
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u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0; |
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u32 nego, supported, advertising, lp_advertising; |
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supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | |
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SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | |
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SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII); |
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if (mii->supports_gmii) |
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supported |= SUPPORTED_1000baseT_Half | |
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SUPPORTED_1000baseT_Full; |
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|
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/* only supports twisted-pair */ |
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cmd->base.port = PORT_MII; |
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/* this isn't fully supported at higher layers */ |
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cmd->base.phy_address = mii->phy_id; |
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cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22; |
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advertising = ADVERTISED_TP | ADVERTISED_MII; |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR); |
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if (mii->supports_gmii) { |
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ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); |
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stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000); |
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} |
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advertising |= mii_get_an(mii, MII_ADVERTISE); |
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if (mii->supports_gmii) |
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advertising |= mii_ctrl1000_to_ethtool_adv_t(ctrl1000); |
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if (bmcr & BMCR_ANENABLE) { |
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advertising |= ADVERTISED_Autoneg; |
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cmd->base.autoneg = AUTONEG_ENABLE; |
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if (bmsr & BMSR_ANEGCOMPLETE) { |
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lp_advertising = mii_get_an(mii, MII_LPA); |
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lp_advertising |= |
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mii_stat1000_to_ethtool_lpa_t(stat1000); |
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} else { |
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lp_advertising = 0; |
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} |
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nego = advertising & lp_advertising; |
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if (nego & (ADVERTISED_1000baseT_Full | |
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ADVERTISED_1000baseT_Half)) { |
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cmd->base.speed = SPEED_1000; |
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cmd->base.duplex = !!(nego & ADVERTISED_1000baseT_Full); |
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} else if (nego & (ADVERTISED_100baseT_Full | |
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ADVERTISED_100baseT_Half)) { |
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cmd->base.speed = SPEED_100; |
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cmd->base.duplex = !!(nego & ADVERTISED_100baseT_Full); |
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} else { |
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cmd->base.speed = SPEED_10; |
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cmd->base.duplex = !!(nego & ADVERTISED_10baseT_Full); |
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} |
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} else { |
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cmd->base.autoneg = AUTONEG_DISABLE; |
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cmd->base.speed = ((bmcr & BMCR_SPEED1000 && |
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(bmcr & BMCR_SPEED100) == 0) ? |
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SPEED_1000 : |
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((bmcr & BMCR_SPEED100) ? |
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SPEED_100 : SPEED_10)); |
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cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? |
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DUPLEX_FULL : DUPLEX_HALF; |
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lp_advertising = 0; |
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} |
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mii->full_duplex = cmd->base.duplex; |
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, |
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supported); |
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, |
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advertising); |
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ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising, |
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lp_advertising); |
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/* ignore maxtxpkt, maxrxpkt for now */ |
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} |
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/** |
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* mii_ethtool_sset - set settings that are specified in @ecmd |
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* @mii: MII interface |
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* @ecmd: requested ethtool_cmd |
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* |
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* Returns 0 for success, negative on error. |
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*/ |
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int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) |
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{ |
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struct net_device *dev = mii->dev; |
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u32 speed = ethtool_cmd_speed(ecmd); |
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if (speed != SPEED_10 && |
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speed != SPEED_100 && |
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speed != SPEED_1000) |
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return -EINVAL; |
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if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) |
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return -EINVAL; |
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if (ecmd->port != PORT_MII) |
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return -EINVAL; |
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if (ecmd->transceiver != XCVR_INTERNAL) |
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return -EINVAL; |
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if (ecmd->phy_address != mii->phy_id) |
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return -EINVAL; |
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if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE) |
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return -EINVAL; |
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if ((speed == SPEED_1000) && (!mii->supports_gmii)) |
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return -EINVAL; |
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/* ignore supported, maxtxpkt, maxrxpkt */ |
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if (ecmd->autoneg == AUTONEG_ENABLE) { |
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u32 bmcr, advert, tmp; |
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u32 advert2 = 0, tmp2 = 0; |
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if ((ecmd->advertising & (ADVERTISED_10baseT_Half | |
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ADVERTISED_10baseT_Full | |
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ADVERTISED_100baseT_Half | |
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ADVERTISED_100baseT_Full | |
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ADVERTISED_1000baseT_Half | |
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ADVERTISED_1000baseT_Full)) == 0) |
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return -EINVAL; |
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/* advertise only what has been requested */ |
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advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE); |
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tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4); |
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if (mii->supports_gmii) { |
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advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000); |
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tmp2 = advert2 & ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL); |
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} |
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tmp |= ethtool_adv_to_mii_adv_t(ecmd->advertising); |
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if (mii->supports_gmii) |
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tmp2 |= |
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ethtool_adv_to_mii_ctrl1000_t(ecmd->advertising); |
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if (advert != tmp) { |
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mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp); |
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mii->advertising = tmp; |
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} |
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if ((mii->supports_gmii) && (advert2 != tmp2)) |
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mii->mdio_write(dev, mii->phy_id, MII_CTRL1000, tmp2); |
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/* turn on autonegotiation, and force a renegotiate */ |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
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mii->mdio_write(dev, mii->phy_id, MII_BMCR, bmcr); |
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mii->force_media = 0; |
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} else { |
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u32 bmcr, tmp; |
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/* turn off auto negotiation, set speed and duplexity */ |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | |
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BMCR_SPEED1000 | BMCR_FULLDPLX); |
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if (speed == SPEED_1000) |
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tmp |= BMCR_SPEED1000; |
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else if (speed == SPEED_100) |
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tmp |= BMCR_SPEED100; |
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if (ecmd->duplex == DUPLEX_FULL) { |
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tmp |= BMCR_FULLDPLX; |
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mii->full_duplex = 1; |
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} else |
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mii->full_duplex = 0; |
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if (bmcr != tmp) |
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mii->mdio_write(dev, mii->phy_id, MII_BMCR, tmp); |
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mii->force_media = 1; |
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} |
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return 0; |
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} |
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/** |
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* mii_ethtool_set_link_ksettings - set settings that are specified in @cmd |
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* @mii: MII interfaces |
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* @cmd: requested ethtool_link_ksettings |
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* |
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* Returns 0 for success, negative on error. |
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*/ |
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int mii_ethtool_set_link_ksettings(struct mii_if_info *mii, |
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const struct ethtool_link_ksettings *cmd) |
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{ |
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struct net_device *dev = mii->dev; |
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u32 speed = cmd->base.speed; |
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if (speed != SPEED_10 && |
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speed != SPEED_100 && |
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speed != SPEED_1000) |
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return -EINVAL; |
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if (cmd->base.duplex != DUPLEX_HALF && cmd->base.duplex != DUPLEX_FULL) |
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return -EINVAL; |
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if (cmd->base.port != PORT_MII) |
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return -EINVAL; |
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if (cmd->base.phy_address != mii->phy_id) |
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return -EINVAL; |
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if (cmd->base.autoneg != AUTONEG_DISABLE && |
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cmd->base.autoneg != AUTONEG_ENABLE) |
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return -EINVAL; |
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if ((speed == SPEED_1000) && (!mii->supports_gmii)) |
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return -EINVAL; |
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/* ignore supported, maxtxpkt, maxrxpkt */ |
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|
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if (cmd->base.autoneg == AUTONEG_ENABLE) { |
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u32 bmcr, advert, tmp; |
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u32 advert2 = 0, tmp2 = 0; |
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u32 advertising; |
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ethtool_convert_link_mode_to_legacy_u32( |
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&advertising, cmd->link_modes.advertising); |
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if ((advertising & (ADVERTISED_10baseT_Half | |
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ADVERTISED_10baseT_Full | |
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ADVERTISED_100baseT_Half | |
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ADVERTISED_100baseT_Full | |
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ADVERTISED_1000baseT_Half | |
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ADVERTISED_1000baseT_Full)) == 0) |
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return -EINVAL; |
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/* advertise only what has been requested */ |
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advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE); |
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tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4); |
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if (mii->supports_gmii) { |
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advert2 = mii->mdio_read(dev, mii->phy_id, |
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MII_CTRL1000); |
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tmp2 = advert2 & |
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~(ADVERTISE_1000HALF | ADVERTISE_1000FULL); |
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} |
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tmp |= ethtool_adv_to_mii_adv_t(advertising); |
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|
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if (mii->supports_gmii) |
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tmp2 |= ethtool_adv_to_mii_ctrl1000_t(advertising); |
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if (advert != tmp) { |
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mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp); |
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mii->advertising = tmp; |
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} |
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if ((mii->supports_gmii) && (advert2 != tmp2)) |
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mii->mdio_write(dev, mii->phy_id, MII_CTRL1000, tmp2); |
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|
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/* turn on autonegotiation, and force a renegotiate */ |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
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mii->mdio_write(dev, mii->phy_id, MII_BMCR, bmcr); |
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|
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mii->force_media = 0; |
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} else { |
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u32 bmcr, tmp; |
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|
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/* turn off auto negotiation, set speed and duplexity */ |
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bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR); |
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tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | |
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BMCR_SPEED1000 | BMCR_FULLDPLX); |
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if (speed == SPEED_1000) |
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tmp |= BMCR_SPEED1000; |
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else if (speed == SPEED_100) |
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tmp |= BMCR_SPEED100; |
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if (cmd->base.duplex == DUPLEX_FULL) { |
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tmp |= BMCR_FULLDPLX; |
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mii->full_duplex = 1; |
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} else { |
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mii->full_duplex = 0; |
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} |
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if (bmcr != tmp) |
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mii->mdio_write(dev, mii->phy_id, MII_BMCR, tmp); |
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|
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mii->force_media = 1; |
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} |
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return 0; |
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} |
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|
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/** |
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* mii_check_gmii_support - check if the MII supports Gb interfaces |
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* @mii: the MII interface |
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*/ |
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int mii_check_gmii_support(struct mii_if_info *mii) |
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{ |
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int reg; |
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|
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reg = mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR); |
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if (reg & BMSR_ESTATEN) { |
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reg = mii->mdio_read(mii->dev, mii->phy_id, MII_ESTATUS); |
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if (reg & (ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) |
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return 1; |
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} |
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|
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return 0; |
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} |
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|
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/** |
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* mii_link_ok - is link status up/ok |
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* @mii: the MII interface |
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* |
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* Returns 1 if the MII reports link status up/ok, 0 otherwise. |
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*/ |
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int mii_link_ok (struct mii_if_info *mii) |
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{ |
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/* first, a dummy read, needed to latch some MII phys */ |
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mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR); |
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if (mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR) & BMSR_LSTATUS) |
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return 1; |
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return 0; |
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} |
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|
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/** |
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* mii_nway_restart - restart NWay (autonegotiation) for this interface |
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* @mii: the MII interface |
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* |
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* Returns 0 on success, negative on error. |
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*/ |
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int mii_nway_restart (struct mii_if_info *mii) |
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{ |
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int bmcr; |
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int r = -EINVAL; |
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|
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/* if autoneg is off, it's an error */ |
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bmcr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMCR); |
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|
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if (bmcr & BMCR_ANENABLE) { |
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bmcr |= BMCR_ANRESTART; |
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mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR, bmcr); |
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r = 0; |
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} |
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|
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return r; |
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} |
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|
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/** |
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* mii_check_link - check MII link status |
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* @mii: MII interface |
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* |
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* If the link status changed (previous != current), call |
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* netif_carrier_on() if current link status is Up or call |
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* netif_carrier_off() if current link status is Down. |
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*/ |
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void mii_check_link (struct mii_if_info *mii) |
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{ |
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int cur_link = mii_link_ok(mii); |
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int prev_link = netif_carrier_ok(mii->dev); |
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|
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if (cur_link && !prev_link) |
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netif_carrier_on(mii->dev); |
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else if (prev_link && !cur_link) |
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netif_carrier_off(mii->dev); |
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} |
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|
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/** |
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* mii_check_media - check the MII interface for a carrier/speed/duplex change |
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* @mii: the MII interface |
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* @ok_to_print: OK to print link up/down messages |
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* @init_media: OK to save duplex mode in @mii |
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* |
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* Returns 1 if the duplex mode changed, 0 if not. |
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* If the media type is forced, always returns 0. |
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*/ |
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unsigned int mii_check_media (struct mii_if_info *mii, |
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unsigned int ok_to_print, |
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unsigned int init_media) |
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{ |
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unsigned int old_carrier, new_carrier; |
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int advertise, lpa, media, duplex; |
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int lpa2 = 0; |
|
|
|
/* check current and old link status */ |
|
old_carrier = netif_carrier_ok(mii->dev) ? 1 : 0; |
|
new_carrier = (unsigned int) mii_link_ok(mii); |
|
|
|
/* if carrier state did not change, this is a "bounce", |
|
* just exit as everything is already set correctly |
|
*/ |
|
if ((!init_media) && (old_carrier == new_carrier)) |
|
return 0; /* duplex did not change */ |
|
|
|
/* no carrier, nothing much to do */ |
|
if (!new_carrier) { |
|
netif_carrier_off(mii->dev); |
|
if (ok_to_print) |
|
netdev_info(mii->dev, "link down\n"); |
|
return 0; /* duplex did not change */ |
|
} |
|
|
|
/* |
|
* we have carrier, see who's on the other end |
|
*/ |
|
netif_carrier_on(mii->dev); |
|
|
|
if (mii->force_media) { |
|
if (ok_to_print) |
|
netdev_info(mii->dev, "link up\n"); |
|
return 0; /* duplex did not change */ |
|
} |
|
|
|
/* get MII advertise and LPA values */ |
|
if ((!init_media) && (mii->advertising)) |
|
advertise = mii->advertising; |
|
else { |
|
advertise = mii->mdio_read(mii->dev, mii->phy_id, MII_ADVERTISE); |
|
mii->advertising = advertise; |
|
} |
|
lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA); |
|
if (mii->supports_gmii) |
|
lpa2 = mii->mdio_read(mii->dev, mii->phy_id, MII_STAT1000); |
|
|
|
/* figure out media and duplex from advertise and LPA values */ |
|
media = mii_nway_result(lpa & advertise); |
|
duplex = (media & ADVERTISE_FULL) ? 1 : 0; |
|
if (lpa2 & LPA_1000FULL) |
|
duplex = 1; |
|
|
|
if (ok_to_print) |
|
netdev_info(mii->dev, "link up, %uMbps, %s-duplex, lpa 0x%04X\n", |
|
lpa2 & (LPA_1000FULL | LPA_1000HALF) ? 1000 : |
|
media & (ADVERTISE_100FULL | ADVERTISE_100HALF) ? |
|
100 : 10, |
|
duplex ? "full" : "half", |
|
lpa); |
|
|
|
if ((init_media) || (mii->full_duplex != duplex)) { |
|
mii->full_duplex = duplex; |
|
return 1; /* duplex changed */ |
|
} |
|
|
|
return 0; /* duplex did not change */ |
|
} |
|
|
|
/** |
|
* generic_mii_ioctl - main MII ioctl interface |
|
* @mii_if: the MII interface |
|
* @mii_data: MII ioctl data structure |
|
* @cmd: MII ioctl command |
|
* @duplex_chg_out: pointer to @duplex_changed status if there was no |
|
* ioctl error |
|
* |
|
* Returns 0 on success, negative on error. |
|
*/ |
|
int generic_mii_ioctl(struct mii_if_info *mii_if, |
|
struct mii_ioctl_data *mii_data, int cmd, |
|
unsigned int *duplex_chg_out) |
|
{ |
|
int rc = 0; |
|
unsigned int duplex_changed = 0; |
|
|
|
if (duplex_chg_out) |
|
*duplex_chg_out = 0; |
|
|
|
mii_data->phy_id &= mii_if->phy_id_mask; |
|
mii_data->reg_num &= mii_if->reg_num_mask; |
|
|
|
switch(cmd) { |
|
case SIOCGMIIPHY: |
|
mii_data->phy_id = mii_if->phy_id; |
|
fallthrough; |
|
|
|
case SIOCGMIIREG: |
|
mii_data->val_out = |
|
mii_if->mdio_read(mii_if->dev, mii_data->phy_id, |
|
mii_data->reg_num); |
|
break; |
|
|
|
case SIOCSMIIREG: { |
|
u16 val = mii_data->val_in; |
|
|
|
if (mii_data->phy_id == mii_if->phy_id) { |
|
switch(mii_data->reg_num) { |
|
case MII_BMCR: { |
|
unsigned int new_duplex = 0; |
|
if (val & (BMCR_RESET|BMCR_ANENABLE)) |
|
mii_if->force_media = 0; |
|
else |
|
mii_if->force_media = 1; |
|
if (mii_if->force_media && |
|
(val & BMCR_FULLDPLX)) |
|
new_duplex = 1; |
|
if (mii_if->full_duplex != new_duplex) { |
|
duplex_changed = 1; |
|
mii_if->full_duplex = new_duplex; |
|
} |
|
break; |
|
} |
|
case MII_ADVERTISE: |
|
mii_if->advertising = val; |
|
break; |
|
default: |
|
/* do nothing */ |
|
break; |
|
} |
|
} |
|
|
|
mii_if->mdio_write(mii_if->dev, mii_data->phy_id, |
|
mii_data->reg_num, val); |
|
break; |
|
} |
|
|
|
default: |
|
rc = -EOPNOTSUPP; |
|
break; |
|
} |
|
|
|
if ((rc == 0) && (duplex_chg_out) && (duplex_changed)) |
|
*duplex_chg_out = 1; |
|
|
|
return rc; |
|
} |
|
|
|
MODULE_AUTHOR ("Jeff Garzik <[email protected]>"); |
|
MODULE_DESCRIPTION ("MII hardware support library"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
EXPORT_SYMBOL(mii_link_ok); |
|
EXPORT_SYMBOL(mii_nway_restart); |
|
EXPORT_SYMBOL(mii_ethtool_gset); |
|
EXPORT_SYMBOL(mii_ethtool_get_link_ksettings); |
|
EXPORT_SYMBOL(mii_ethtool_sset); |
|
EXPORT_SYMBOL(mii_ethtool_set_link_ksettings); |
|
EXPORT_SYMBOL(mii_check_link); |
|
EXPORT_SYMBOL(mii_check_media); |
|
EXPORT_SYMBOL(mii_check_gmii_support); |
|
EXPORT_SYMBOL(generic_mii_ioctl); |
|
|
|
|