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RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event
Consumers that want to re-use their QPs in new connections need to know when the QP has exited the timewait state. Report the timewait event through the rdma_cm. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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2 changed files with 8 additions and 2 deletions
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@ -920,7 +920,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
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struct rdma_cm_event event;
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int ret = 0;
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if (cma_disable_callback(id_priv, CMA_CONNECT))
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if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&
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cma_disable_callback(id_priv, CMA_CONNECT)) ||
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(ib_event->event == IB_CM_TIMEWAIT_EXIT &&
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cma_disable_callback(id_priv, CMA_DISCONNECT)))
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return 0;
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memset(&event, 0, sizeof event);
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@ -956,6 +959,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
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event.event = RDMA_CM_EVENT_DISCONNECTED;
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break;
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case IB_CM_TIMEWAIT_EXIT:
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event.event = RDMA_CM_EVENT_TIMEWAIT_EXIT;
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break;
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case IB_CM_MRA_RECEIVED:
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/* ignore event */
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goto out;
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@ -58,7 +58,8 @@ enum rdma_cm_event_type {
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RDMA_CM_EVENT_DEVICE_REMOVAL,
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RDMA_CM_EVENT_MULTICAST_JOIN,
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RDMA_CM_EVENT_MULTICAST_ERROR,
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RDMA_CM_EVENT_ADDR_CHANGE
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RDMA_CM_EVENT_ADDR_CHANGE,
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RDMA_CM_EVENT_TIMEWAIT_EXIT
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};
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enum rdma_port_space {
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