IB/hns: Change qpn allocation to round-robin mode.
When using CM to establish connections, qp number that was freed just now will be rejected by ib core. To fix these problem, We change qpn allocation to round-robin mode. We added the round-robin mode for allocating resources using bitmap. We use round-robin mode for qp number and non round-robing mode for other resources like cq number, pd number etc. Signed-off-by: NWei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: NSalil Mehta <salil.mehta@huawei.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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