d2ca39f262
When doing rdma_resolve_addr(), if the relevant IB port is down, the function fails and the cm_id is not bound to the correct device. Therefore, application does not have a device handle and cannot wait for the port to become active. The function fails because the underlying IPoIB interface is not joined to the broadcast group and therefore the SA does not have a multicast record to take a Q_Key from. The fix is to use lazy Q_Key resolution - cma_set_qkey() will set id_priv->qkey if it was not set, and will be called just before the Q_Key is really required. Signed-off-by: Yossi Etigin <yosefe@voltaire.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> |
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