perftest: Set Ack timeout for rdma_cm connection id

Perftest doesn't configure timeout set by user for rdma_cm
connections. It can lead to timeout of mad packets for cetain
workloads.

Added code to set the ack timeout of QP associated with rdma_cm
connection identifier

Signed-off-by: Saravanan Vajravel <[email protected]>

Author: Saravanan Vajravel

src/perftest_communication.c

@@ -999,6 +999,12 @@ int rdma_client_connect(struct pingpong_context *ctx,struct perftest_parameters
 		}
 	}
 
+	if (rdma_set_option(ctx->cm_id, RDMA_OPTION_ID, RDMA_OPTION_ID_ACK_TIMEOUT,
+			    &user_param->qp_timeout, sizeof(uint8_t))) {
+		fprintf(stderr, " Set RDMA-CM Ack timeout option failed: %d\n", event->event);
+		return FAILURE;
+	}
+
 	while (1) {
 
 		if (num_of_retry <= 0) {
@@ -1232,6 +1238,12 @@ int rdma_server_connect(struct pingpong_context *ctx,
 		}
 	}
 
+	if (rdma_set_option(ctx->cm_id, RDMA_OPTION_ID, RDMA_OPTION_ID_ACK_TIMEOUT,
+			    &user_param->qp_timeout, sizeof(uint8_t))) {
+		fprintf(stderr, " Set RDMA-CM Ack timeout option failed: %d\n", event->event);
+		return FAILURE;
+	}
+
 	if (rdma_accept(ctx->cm_id, &conn_param)) {
 		fprintf(stderr, "Function rdma_accept failed\n");
 		return 1;