Commit edcd2a74 authored by Erez Shitrit's avatar Erez Shitrit Committed by Doug Ledford

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

When switching between modes (datagram / connected) change the MTU
accordingly.
datagram mode up to 4K, connected mode up to (64K - 0x10).
Signed-off-by: default avatarELi Cohen <eli@mellanox.com>
Signed-off-by: default avatarErez Shitrit <erezsh@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c4268778
...@@ -232,6 +232,7 @@ int ipoib_set_mode(struct net_device *dev, const char *buf) ...@@ -232,6 +232,7 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
ipoib_warn(priv, "enabling connected mode " ipoib_warn(priv, "enabling connected mode "
"will cause multicast packet drops\n"); "will cause multicast packet drops\n");
netdev_update_features(dev); netdev_update_features(dev);
dev_set_mtu(dev, ipoib_cm_max_mtu(dev));
rtnl_unlock(); rtnl_unlock();
priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM;
......
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