IB/iser: Add TIMEWAIT_EXIT event handling

In case the DISCONNECTED event is not delivered after rdma_disconnect
is called, the CM waits TIMEWAIT seconds and delivers the
TIMEWAIT_EXIT local event. We use this as the notification needed to
continue in the teardown and release sequence.

Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index dc0c90f..da6f3dd 100644 (file)
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -785,6 +785,7 @@ static int iser_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *eve
        case RDMA_CM_EVENT_DISCONNECTED:
        case RDMA_CM_EVENT_DEVICE_REMOVAL:
        case RDMA_CM_EVENT_ADDR_CHANGE:
+       case RDMA_CM_EVENT_TIMEWAIT_EXIT:
                iser_disconnected_handler(cma_id);
                break;
        default: