/**
* phylink_start() - start a phylink instance
* @pl: a pointer to a &struct phylink returned from phylink_create()
*
* Start the phylink instance specified by @pl, configuring the MAC for the
* desired link mode(s) and negotiation style. This should be called from the
* network device driver's &struct net_device_ops ndo_open() method.
*/
void phylink_start(struct phylink *pl)
{
ASSERT_RTNL();
netdev_info(pl->netdev, "configuring for %s/%s link mode\n",
phylink_an_mode_str(pl->link_an_mode),
phy_modes(pl->link_config.interface));
/* Always set the carrier off */
netif_carrier_off(pl->netdev);
/* Apply the link configuration to the MAC when starting. This allows
* a fixed-link to start with the correct parameters, and also
* ensures that we set the appropriate advertisement for Serdes links.
*/
phylink_resolve_flow(pl, &pl->link_config);
phylink_mac_config(pl, &pl->link_config);
/* Restart autonegotiation if using 802.3z to ensure that the link
* parameters are properly negotiated. This is necessary for DSA
* switches using 802.3z negotiation to ensure they see our modes.
*/
phylink_mac_an_restart(pl);
clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
phylink_run_resolve(pl);
if (pl->link_an_mode == MLO_AN_FIXED && !IS_ERR(pl->link_gpio))
mod_timer(&pl->link_poll, jiffies + HZ);
if (pl->sfp_bus)
sfp_upstream_start(pl->sfp_bus);
if (pl->phydev)
phy_start(pl->phydev);
}
void phylink_start(struct phylink *pl)
{
WARN_ON(!lockdep_rtnl_is_held());
netdev_info(pl->netdev, "configuring for %s/%s link mode\n",
phylink_an_mode_str(pl->link_an_mode),
phy_modes(pl->link_config.interface));
/* Apply the link configuration to the MAC when starting. This allows
* a fixed-link to start with the correct parameters, and also
* ensures that we set the appropriate advertisment for Serdes links.
*/
phylink_resolve_flow(pl, &pl->link_config);
phylink_mac_config(pl, &pl->link_config);
clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
phylink_run_resolve(pl);
if (pl->sfp_bus)
sfp_upstream_start(pl->sfp_bus);
if (pl->phydev)
phy_start(pl->phydev);
}
