1 files changed, 36 insertions, 5 deletions

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index bfce761156a..58a3097579f 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -442,6 +442,33 @@ int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
 	return mdio_write(phy, 0, MII_BMCR, ctl);
 }
 
+int t3_phy_lasi_intr_enable(struct cphy *phy)
+{
+	return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 1);
+}
+
+int t3_phy_lasi_intr_disable(struct cphy *phy)
+{
+	return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 0);
+}
+
+int t3_phy_lasi_intr_clear(struct cphy *phy)
+{
+	u32 val;
+
+	return mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &val);
+}
+
+int t3_phy_lasi_intr_handler(struct cphy *phy)
+{
+	unsigned int status;
+	int err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &status);
+
+	if (err)
+		return err;
+	return (status & 1) ?  cphy_cause_link_change : 0;
+}
+
 static const struct adapter_info t3_adap_info[] = {
 	{2, 0,
 	 F_GPIO2_OEN | F_GPIO4_OEN |
@@ -1132,6 +1159,15 @@ void t3_link_changed(struct adapter *adapter, int port_id)
 
 	phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
 
+	if (lc->requested_fc & PAUSE_AUTONEG)
+		fc &= lc->requested_fc;
+	else
+		fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+
+	if (link_ok == lc->link_ok && speed == lc->speed &&
+	    duplex == lc->duplex && fc == lc->fc)
+		return;                            /* nothing changed */
+
 	if (link_ok != lc->link_ok && adapter->params.rev > 0 &&
 	    uses_xaui(adapter)) {
 		if (link_ok)
@@ -1142,10 +1178,6 @@ void t3_link_changed(struct adapter *adapter, int port_id)
 	lc->link_ok = link_ok;
 	lc->speed = speed < 0 ? SPEED_INVALID : speed;
 	lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
-	if (lc->requested_fc & PAUSE_AUTONEG)
-		fc &= lc->requested_fc;
-	else
-		fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
 
 	if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) {
 		/* Set MAC speed, duplex, and flow control to match PHY. */
@@ -1191,7 +1223,6 @@ int t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
 						   fc);
 			/* Also disables autoneg */
 			phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
-			phy->ops->reset(phy, 0);
 		} else
 			phy->ops->autoneg_enable(phy);
 	} else {