IB/ipoib: Set MTU to max allowed by mode when mode changes

[cascardo/linux.git] / drivers / infiniband / ulp / ipoib / ipoib_main.c

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 0d8336e..b2943c8 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -190,7 +190,7 @@ static netdev_features_t ipoib_fix_features(struct net_device *dev, netdev_featu
        struct ipoib_dev_priv *priv = netdev_priv(dev);
 
        if (test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags))
-               features &= ~(NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
+               features &= ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
 
        return features;
 }
@@ -232,6 +232,7 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
                ipoib_warn(priv, "enabling connected mode "
                           "will cause multicast packet drops\n");
                netdev_update_features(dev);
+               dev_set_mtu(dev, ipoib_cm_max_mtu(dev));
                rtnl_unlock();
                priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM;
 
@@ -1577,7 +1578,8 @@ static struct net_device *ipoib_add_port(const char *format,
        SET_NETDEV_DEV(priv->dev, hca->dma_device);
        priv->dev->dev_id = port - 1;
 
-       if (!ib_query_port(hca, port, &attr))
+       result = ib_query_port(hca, port, &attr);
+       if (!result)
                priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
        else {
                printk(KERN_WARNING "%s: ib_query_port %d failed\n",
@@ -1598,7 +1600,8 @@ static struct net_device *ipoib_add_port(const char *format,
                goto device_init_failed;
        }
 
-       if (ipoib_set_dev_features(priv, hca))
+       result = ipoib_set_dev_features(priv, hca);
+       if (result)
                goto device_init_failed;
 
        /*