Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

[linux-2.6-microblaze.git] / drivers / infiniband / hw / irdma / utils.c

diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c
index eb083f7..6cd5cb8 100644 (file)
--- a/drivers/infiniband/hw/irdma/utils.c
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -760,6 +760,31 @@ void irdma_qp_rem_ref(struct ib_qp *ibqp)
        complete(&iwqp->free_qp);
 }
 
+void irdma_cq_add_ref(struct ib_cq *ibcq)
+{
+       struct irdma_cq *iwcq = to_iwcq(ibcq);
+
+       refcount_inc(&iwcq->refcnt);
+}
+
+void irdma_cq_rem_ref(struct ib_cq *ibcq)
+{
+       struct ib_device *ibdev = ibcq->device;
+       struct irdma_device *iwdev = to_iwdev(ibdev);
+       struct irdma_cq *iwcq = to_iwcq(ibcq);
+       unsigned long flags;
+
+       spin_lock_irqsave(&iwdev->rf->cqtable_lock, flags);
+       if (!refcount_dec_and_test(&iwcq->refcnt)) {
+               spin_unlock_irqrestore(&iwdev->rf->cqtable_lock, flags);
+               return;
+       }
+
+       iwdev->rf->cq_table[iwcq->cq_num] = NULL;
+       spin_unlock_irqrestore(&iwdev->rf->cqtable_lock, flags);
+       complete(&iwcq->free_cq);
+}
+
 struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
 {
        return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;