IB/ehca: Generate async event when SRQ limit reached

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 28 insertions, 14 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index 4fb01fcb63ae..71c0799b3500 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -175,9 +175,8 @@ error_data1:
 
 }
 
-static void qp_event_callback(struct ehca_shca *shca,
-                              u64 eqe,
-                              enum ib_event_type event_type)
+static void qp_event_callback(struct ehca_shca *shca, u64 eqe,
+                              enum ib_event_type event_type, int fatal)
 {
         struct ib_event event;
         struct ehca_qp *qp;
@@ -191,16 +190,26 @@ static void qp_event_callback(struct ehca_shca *shca,
         if (!qp)
                 return;
 
-        ehca_error_data(shca, qp, qp->ipz_qp_handle.handle);
+        if (fatal)
+                ehca_error_data(shca, qp, qp->ipz_qp_handle.handle);
 
-        if (!qp->ib_qp.event_handler)
-                return;
+        event.device = &shca->ib_device;
 
-        event.device     = &shca->ib_device;
-        event.event      = event_type;
-        event.element.qp = &qp->ib_qp;
+        if (qp->ext_type == EQPT_SRQ) {
+                if (!qp->ib_srq.event_handler)
+                        return;
 
-        qp->ib_qp.event_handler(&event, qp->ib_qp.qp_context);
+                event.event = fatal ? IB_EVENT_SRQ_ERR : event_type;
+                event.element.srq = &qp->ib_srq;
+                qp->ib_srq.event_handler(&event, qp->ib_srq.srq_context);
+        } else {
+                if (!qp->ib_qp.event_handler)
+                        return;
+
+                event.event = event_type;
+                event.element.qp = &qp->ib_qp;
+                qp->ib_qp.event_handler(&event, qp->ib_qp.qp_context);
+        }
 
         return;
 }
@@ -234,17 +243,17 @@ static void parse_identifier(struct ehca_shca *shca, u64 eqe)
 
         switch (identifier) {
         case 0x02: /* path migrated */
-                qp_event_callback(shca, eqe, IB_EVENT_PATH_MIG);
+                qp_event_callback(shca, eqe, IB_EVENT_PATH_MIG, 0);
                 break;
         case 0x03: /* communication established */
-                qp_event_callback(shca, eqe, IB_EVENT_COMM_EST);
+                qp_event_callback(shca, eqe, IB_EVENT_COMM_EST, 0);
                 break;
         case 0x04: /* send queue drained */
-                qp_event_callback(shca, eqe, IB_EVENT_SQ_DRAINED);
+                qp_event_callback(shca, eqe, IB_EVENT_SQ_DRAINED, 0);
                 break;
         case 0x05: /* QP error */
         case 0x06: /* QP error */
-                qp_event_callback(shca, eqe, IB_EVENT_QP_FATAL);
+                qp_event_callback(shca, eqe, IB_EVENT_QP_FATAL, 1);
                 break;
         case 0x07: /* CQ error */
         case 0x08: /* CQ error */
@@ -278,6 +287,11 @@ static void parse_identifier(struct ehca_shca *shca, u64 eqe)
                 ehca_err(&shca->ib_device, "Interface trace stopped.");
                 break;
         case 0x14: /* first error capture info available */
+                ehca_info(&shca->ib_device, "First error capture available");
+                break;
+        case 0x15: /* SRQ limit reached */
+                qp_event_callback(shca, eqe, IB_EVENT_SRQ_LIMIT_REACHED, 0);
+                break;
         default:
                 ehca_err(&shca->ib_device, "Unknown identifier: %x on %s.",
                          identifier, shca->ib_device.name);