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net: stmmac: Prepare to convert to phylink 

In preparation for the convertion, split the adjust_link function into
mac_config and add the mac_link_up and mac_link_down functions.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-06-11 17:18:45 +02:00 committed by David S. Miller
parent 5948d11766
commit 9ad372fc5a
1 changed files with 72 additions and 41 deletions
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113
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -848,6 +848,72 @@ static void stmmac_mac_flow_ctrl(struct stmmac_priv *priv, u32 duplex)
priv->pause, tx_cnt);
}
static void stmmac_mac_config(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
struct phy_device *phydev = dev->phydev;
u32 ctrl;
ctrl = readl(priv->ioaddr + MAC_CTRL_REG);
if (phydev->speed != priv->speed) {
ctrl &= ~priv->hw->link.speed_mask;
switch (phydev->speed) {
case SPEED_1000:
ctrl |= priv->hw->link.speed1000;
break;
case SPEED_100:
ctrl |= priv->hw->link.speed100;
break;
case SPEED_10:
ctrl |= priv->hw->link.speed10;
break;
default:
netif_warn(priv, link, priv->dev,
"broken speed: %d\n", phydev->speed);
phydev->speed = SPEED_UNKNOWN;
break;
}
if (phydev->speed != SPEED_UNKNOWN)
stmmac_hw_fix_mac_speed(priv);
priv->speed = phydev->speed;
}
/* Now we make sure that we can be in full duplex mode.
* If not, we operate in half-duplex mode. */
if (phydev->duplex != priv->oldduplex) {
if (!phydev->duplex)
ctrl &= ~priv->hw->link.duplex;
else
ctrl |= priv->hw->link.duplex;
priv->oldduplex = phydev->duplex;
}
/* Flow Control operation */
if (phydev->pause)
stmmac_mac_flow_ctrl(priv, phydev->duplex);
writel(ctrl, priv->ioaddr + MAC_CTRL_REG);
}
static void stmmac_mac_link_down(struct net_device *dev, bool autoneg)
{
struct stmmac_priv *priv = netdev_priv(dev);
stmmac_mac_set(priv, priv->ioaddr, false);
}
static void stmmac_mac_link_up(struct net_device *dev, bool autoneg)
{
struct stmmac_priv *priv = netdev_priv(dev);
stmmac_mac_set(priv, priv->ioaddr, true);
}
/**
* stmmac_adjust_link - adjusts the link parameters
* @dev: net device structure
@ -869,47 +935,7 @@ static void stmmac_adjust_link(struct net_device *dev)
mutex_lock(&priv->lock);
if (phydev->link) {
u32 ctrl = readl(priv->ioaddr + MAC_CTRL_REG);
/* Now we make sure that we can be in full duplex mode.
* If not, we operate in half-duplex mode. */
if (phydev->duplex != priv->oldduplex) {
new_state = true;
if (!phydev->duplex)
ctrl &= ~priv->hw->link.duplex;
else
ctrl |= priv->hw->link.duplex;
priv->oldduplex = phydev->duplex;
}
/* Flow Control operation */
if (phydev->pause)
stmmac_mac_flow_ctrl(priv, phydev->duplex);
if (phydev->speed != priv->speed) {
new_state = true;
ctrl &= ~priv->hw->link.speed_mask;
switch (phydev->speed) {
case SPEED_1000:
ctrl |= priv->hw->link.speed1000;
break;
case SPEED_100:
ctrl |= priv->hw->link.speed100;
break;
case SPEED_10:
ctrl |= priv->hw->link.speed10;
break;
default:
netif_warn(priv, link, priv->dev,
"broken speed: %d\n", phydev->speed);
phydev->speed = SPEED_UNKNOWN;
break;
}
if (phydev->speed != SPEED_UNKNOWN)
stmmac_hw_fix_mac_speed(priv);
priv->speed = phydev->speed;
}
writel(ctrl, priv->ioaddr + MAC_CTRL_REG);
stmmac_mac_config(dev);
if (!priv->oldlink) {
new_state = true;
@ -922,6 +948,11 @@ static void stmmac_adjust_link(struct net_device *dev)
priv->oldduplex = DUPLEX_UNKNOWN;
}
if (phydev->link)
stmmac_mac_link_up(dev, false);
else
stmmac_mac_link_down(dev, false);
if (new_state && netif_msg_link(priv))
phy_print_status(phydev);