IB: Return "maybe missed event" hint from ib_req_notify_cq()

[safe/jmp/linux-2.6] / drivers / infiniband / hw / ehca / ehca_reqs.c

diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index 08d3f89..caec9de 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -634,11 +634,13 @@ poll_cq_exit0:
        return ret;
 }
 
-int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify)
+int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags notify_flags)
 {
        struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq);
+       unsigned long spl_flags;
+       int ret = 0;
 
-       switch (cq_notify) {
+       switch (notify_flags & IB_CQ_SOLICITED_MASK) {
        case IB_CQ_SOLICITED:
                hipz_set_cqx_n0(my_cq, 1);
                break;
@@ -649,5 +651,11 @@ int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify)
                return -EINVAL;
        }
 
-       return 0;
+       if (notify_flags & IB_CQ_REPORT_MISSED_EVENTS) {
+               spin_lock_irqsave(&my_cq->spinlock, spl_flags);
+               ret = ipz_qeit_is_valid(&my_cq->ipz_queue);
+               spin_unlock_irqrestore(&my_cq->spinlock, spl_flags);
+       }
+
+       return ret;
 }