IB/ehca: Generate async event when SRQ limit reached

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

drivers/infiniband/hw/ehca/ehca_irq.c

@@ -175,9 +175,8 @@ int ehca_error_data(struct ehca_shca *shca, void *data,
 
 }
 
-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;
 
+	if (fatal)
 		ehca_error_data(shca, qp, qp->ipz_qp_handle.handle);
 
+	event.device = &shca->ib_device;
+
+	if (qp->ext_type == EQPT_SRQ) {
+		if (!qp->ib_srq.event_handler)
+			return;
+
+		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.device     = &shca->ib_device;
 		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);