Merge branch 'linus' into cpus4096

[pandora-kernel.git] / drivers / infiniband / hw / ehca / ehca_irq.c

diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index b5ca94c..7a64aa9 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -204,6 +204,8 @@ static void qp_event_callback(struct ehca_shca *shca, u64 eqe,
 
        read_lock(&ehca_qp_idr_lock);
        qp = idr_find(&ehca_qp_idr, token);
+       if (qp)
+               atomic_inc(&qp->nr_events);
        read_unlock(&ehca_qp_idr_lock);
 
        if (!qp)
@@ -223,6 +225,8 @@ static void qp_event_callback(struct ehca_shca *shca, u64 eqe,
        if (fatal && qp->ext_type == EQPT_SRQBASE)
                dispatch_qp_event(shca, qp, IB_EVENT_QP_LAST_WQE_REACHED);
 
+       if (atomic_dec_and_test(&qp->nr_events))
+               wake_up(&qp->wait_completion);
        return;
 }
 
@@ -527,7 +531,7 @@ void ehca_process_eq(struct ehca_shca *shca, int is_irq)
 {
        struct ehca_eq *eq = &shca->eq;
        struct ehca_eqe_cache_entry *eqe_cache = eq->eqe_cache;
-       u64 eqe_value;
+       u64 eqe_value, ret;
        unsigned long flags;
        int eqe_cnt, i;
        int eq_empty = 0;
@@ -579,8 +583,13 @@ void ehca_process_eq(struct ehca_shca *shca, int is_irq)
                        ehca_dbg(&shca->ib_device,
                                 "No eqe found for irq event");
                goto unlock_irq_spinlock;
-       } else if (!is_irq)
+       } else if (!is_irq) {
+               ret = hipz_h_eoi(eq->ist);
+               if (ret != H_SUCCESS)
+                       ehca_err(&shca->ib_device,
+                                "bad return code EOI -rc = %ld\n", ret);
                ehca_dbg(&shca->ib_device, "deadman found %x eqe", eqe_cnt);
+       }
        if (unlikely(eqe_cnt == EHCA_EQE_CACHE_SIZE))
                ehca_dbg(&shca->ib_device, "too many eqes for one irq event");
        /* enable irq for new packets */
@@ -633,12 +642,12 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
        unsigned long flags;
 
        WARN_ON_ONCE(!in_interrupt());
-       if (ehca_debug_level)
+       if (ehca_debug_level >= 3)
                ehca_dmp(&cpu_online_map, sizeof(cpumask_t), "");
 
        spin_lock_irqsave(&pool->last_cpu_lock, flags);
-       cpu = next_cpu(pool->last_cpu, cpu_online_map);
-       if (cpu == NR_CPUS)
+       cpu = next_cpu_nr(pool->last_cpu, cpu_online_map);
+       if (cpu >= nr_cpu_ids)
                cpu = first_cpu(cpu_online_map);
        pool->last_cpu = cpu;
        spin_unlock_irqrestore(&pool->last_cpu_lock, flags);