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tg3: Add a warning during link settings change if mgmt enabled
When the user executes certain ethtool commands such as -s, -A, -G, -L, -r a phy reset or autonegotiate is performed which results in management traffic being interrupted. Add a warning in these cases. Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 14 additions and 0 deletions
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@ -2531,6 +2531,13 @@ static void tg3_carrier_off(struct tg3 *tp)
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tp->link_up = false;
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}
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static void tg3_warn_mgmt_link_flap(struct tg3 *tp)
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{
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if (tg3_flag(tp, ENABLE_ASF))
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netdev_warn(tp->dev,
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"Management side-band traffic will be interrupted during phy settings change\n");
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}
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/* This will reset the tigon3 PHY if there is no valid
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* link unless the FORCE argument is non-zero.
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*/
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@ -11565,6 +11572,8 @@ static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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tp->link_config.duplex = cmd->duplex;
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}
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tg3_warn_mgmt_link_flap(tp);
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if (netif_running(dev))
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tg3_setup_phy(tp, 1);
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@ -11643,6 +11652,8 @@ static int tg3_nway_reset(struct net_device *dev)
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if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
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return -EINVAL;
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tg3_warn_mgmt_link_flap(tp);
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if (tg3_flag(tp, USE_PHYLIB)) {
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if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
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return -EAGAIN;
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@ -11755,6 +11766,9 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
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struct tg3 *tp = netdev_priv(dev);
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int err = 0;
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if (tp->link_config.autoneg == AUTONEG_ENABLE)
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tg3_warn_mgmt_link_flap(tp);
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if (tg3_flag(tp, USE_PHYLIB)) {
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u32 newadv;
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struct phy_device *phydev;
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