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tg3: Allow phylib flowctrl changes anytime

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This patch loosens the restriction that the phylib interface must be up
and running to change the flow control parameters.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2010-02-17 15:16:57 +00:00 committed by David S. Miller
parent a4153d401a
commit 2712168f85
1 changed files with 53 additions and 43 deletions
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60
drivers/net/tg3.c
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@ -10093,56 +10093,66 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
int err = 0;
if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
return -EAGAIN;
if (epause->autoneg) {
u32 newadv;
struct phy_device *phydev;
phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
if (!(phydev->supported & SUPPORTED_Pause) ||
(!(phydev->supported & SUPPORTED_Asym_Pause) &&
((epause->rx_pause && !epause->tx_pause) ||
(!epause->rx_pause && epause->tx_pause))))
return -EINVAL;
tp->link_config.flowctrl = 0;
if (epause->rx_pause) {
if (epause->tx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_RX;
if (epause->tx_pause) {
tp->link_config.flowctrl |= FLOW_CTRL_TX;
newadv = ADVERTISED_Pause;
else
} else
newadv = ADVERTISED_Pause |
ADVERTISED_Asym_Pause;
} else if (epause->tx_pause) {
tp->link_config.flowctrl |= FLOW_CTRL_TX;
newadv = ADVERTISED_Asym_Pause;
} else
newadv = 0;
if (epause->autoneg)
tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
else
tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
u32 oldadv = phydev->advertising &
(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
if (oldadv != newadv) {
phydev->advertising &=
~(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
phydev->advertising |= newadv;
err = phy_start_aneg(phydev);
if (phydev->autoneg) {
/*
* Always renegotiate the link to
* inform our link partner of our
* flow control settings, even if the
* flow control is forced. Let
* tg3_adjust_link() do the final
* flow control setup.
*/
return phy_start_aneg(phydev);
}
}
if (!epause->autoneg)
tg3_setup_flow_control(tp, 0, 0);
} else {
tp->link_config.advertising &=
tp->link_config.orig_advertising &=
~(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
tp->link_config.advertising |= newadv;
}
} else {
if (epause->rx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_RX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
if (epause->tx_pause)
tp->link_config.flowctrl |= FLOW_CTRL_TX;
else
tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
if (netif_running(dev))
tg3_setup_flow_control(tp, 0, 0);
tp->link_config.orig_advertising |= newadv;
}
} else {
int irq_sync = 0;