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Commit b4132efa authored by Eli Cohen's avatar Eli Cohen Committed by Roland Dreier
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IPoIB: Copy child MTU from parent 



When creating a child interface, copy the MTU information from the
parent.  Otherwise when the child's multicast join completes, the MTU
will not be updated since the code does

	dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);

and priv->admin_mtu will be set to 0.

Signed-off-by: default avatarEli Cohen <eli@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent baaad380

drivers/infiniband/ulp/ipoib/ipoib_vlan.c

+3 −0
Original line number Diff line number Diff line
@@ -90,6 +90,9 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) 
	}



	priv->max_ib_mtu = ppriv->max_ib_mtu;

	/* MTU will be reset when mcast join happens */

	priv->dev->mtu   = IPOIB_UD_MTU(priv->max_ib_mtu);

	priv->mcast_mtu  = priv->admin_mtu = priv->dev->mtu;

	set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);



	priv->pkey = pkey;