From: Michael Chan Date: Sun, 8 Jul 2007 05:50:15 +0000 (-0700) Subject: [BNX2]: Add ethtool support for remote PHY. X-Git-Tag: firefly_0821_release~28305^2~43 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7b6b83474cb9bdd07dadfb7497a29c3005ad9d1d;p=firefly-linux-kernel-4.4.55.git [BNX2]: Add ethtool support for remote PHY. Modify the driver's ethtool_ops->get_settings and set_settings functions to support remote PHY. Users control the remote copper PHY settings by specifying link settings for the tp (twisted pair) port. The nway_reset function is also modified to support remote PHY. mii-tool operations are not supported on remote PHY and we will return -EOPNOTSUPP. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index c571da60241d..d7fad6938bdd 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -5363,17 +5363,25 @@ static int bnx2_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct bnx2 *bp = netdev_priv(dev); + int support_serdes = 0, support_copper = 0; cmd->supported = SUPPORTED_Autoneg; - if (bp->phy_flags & PHY_SERDES_FLAG) { + if (bp->phy_flags & REMOTE_PHY_CAP_FLAG) { + support_serdes = 1; + support_copper = 1; + } else if (bp->phy_port == PORT_FIBRE) + support_serdes = 1; + else + support_copper = 1; + + if (support_serdes) { cmd->supported |= SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE; if (bp->phy_flags & PHY_2_5G_CAPABLE_FLAG) cmd->supported |= SUPPORTED_2500baseX_Full; - cmd->port = PORT_FIBRE; } - else { + if (support_copper) { cmd->supported |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | @@ -5381,9 +5389,10 @@ bnx2_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) SUPPORTED_1000baseT_Full | SUPPORTED_TP; - cmd->port = PORT_TP; } + spin_lock_bh(&bp->phy_lock); + cmd->port = bp->phy_port; cmd->advertising = bp->advertising; if (bp->autoneg & AUTONEG_SPEED) { @@ -5401,6 +5410,7 @@ bnx2_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) cmd->speed = -1; cmd->duplex = -1; } + spin_unlock_bh(&bp->phy_lock); cmd->transceiver = XCVR_INTERNAL; cmd->phy_address = bp->phy_addr; @@ -5416,6 +5426,15 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) u8 req_duplex = bp->req_duplex; u16 req_line_speed = bp->req_line_speed; u32 advertising = bp->advertising; + int err = -EINVAL; + + spin_lock_bh(&bp->phy_lock); + + if (cmd->port != PORT_TP && cmd->port != PORT_FIBRE) + goto err_out_unlock; + + if (cmd->port != bp->phy_port && !(bp->phy_flags & REMOTE_PHY_CAP_FLAG)) + goto err_out_unlock; if (cmd->autoneg == AUTONEG_ENABLE) { autoneg |= AUTONEG_SPEED; @@ -5428,44 +5447,41 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) (cmd->advertising == ADVERTISED_100baseT_Half) || (cmd->advertising == ADVERTISED_100baseT_Full)) { - if (bp->phy_flags & PHY_SERDES_FLAG) - return -EINVAL; + if (cmd->port == PORT_FIBRE) + goto err_out_unlock; advertising = cmd->advertising; } else if (cmd->advertising == ADVERTISED_2500baseX_Full) { - if (!(bp->phy_flags & PHY_2_5G_CAPABLE_FLAG)) - return -EINVAL; - } else if (cmd->advertising == ADVERTISED_1000baseT_Full) { + if (!(bp->phy_flags & PHY_2_5G_CAPABLE_FLAG) || + (cmd->port == PORT_TP)) + goto err_out_unlock; + } else if (cmd->advertising == ADVERTISED_1000baseT_Full) advertising = cmd->advertising; - } - else if (cmd->advertising == ADVERTISED_1000baseT_Half) { - return -EINVAL; - } + else if (cmd->advertising == ADVERTISED_1000baseT_Half) + goto err_out_unlock; else { - if (bp->phy_flags & PHY_SERDES_FLAG) { + if (cmd->port == PORT_FIBRE) advertising = ETHTOOL_ALL_FIBRE_SPEED; - } - else { + else advertising = ETHTOOL_ALL_COPPER_SPEED; - } } advertising |= ADVERTISED_Autoneg; } else { - if (bp->phy_flags & PHY_SERDES_FLAG) { + if (cmd->port == PORT_FIBRE) { if ((cmd->speed != SPEED_1000 && cmd->speed != SPEED_2500) || (cmd->duplex != DUPLEX_FULL)) - return -EINVAL; + goto err_out_unlock; if (cmd->speed == SPEED_2500 && !(bp->phy_flags & PHY_2_5G_CAPABLE_FLAG)) - return -EINVAL; - } - else if (cmd->speed == SPEED_1000) { - return -EINVAL; + goto err_out_unlock; } + else if (cmd->speed == SPEED_1000 || cmd->speed == SPEED_2500) + goto err_out_unlock; + autoneg &= ~AUTONEG_SPEED; req_line_speed = cmd->speed; req_duplex = cmd->duplex; @@ -5477,13 +5493,12 @@ bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) bp->req_line_speed = req_line_speed; bp->req_duplex = req_duplex; - spin_lock_bh(&bp->phy_lock); - - bnx2_setup_phy(bp, bp->phy_port); + err = bnx2_setup_phy(bp, cmd->port); +err_out_unlock: spin_unlock_bh(&bp->phy_lock); - return 0; + return err; } static void @@ -5610,6 +5625,14 @@ bnx2_nway_reset(struct net_device *dev) spin_lock_bh(&bp->phy_lock); + if (bp->phy_flags & REMOTE_PHY_CAP_FLAG) { + int rc; + + rc = bnx2_setup_remote_phy(bp, bp->phy_port); + spin_unlock_bh(&bp->phy_lock); + return rc; + } + /* Force a link down visible on the other side */ if (bp->phy_flags & PHY_SERDES_FLAG) { bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK); @@ -6219,6 +6242,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) case SIOCGMIIREG: { u32 mii_regval; + if (bp->phy_flags & REMOTE_PHY_CAP_FLAG) + return -EOPNOTSUPP; + if (!netif_running(dev)) return -EAGAIN; @@ -6235,6 +6261,9 @@ bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (!capable(CAP_NET_ADMIN)) return -EPERM; + if (bp->phy_flags & REMOTE_PHY_CAP_FLAG) + return -EOPNOTSUPP; + if (!netif_running(dev)) return -EAGAIN;