Commit 727d820e authored by Ben Walker's avatar Ben Walker Committed by Changpeng Liu
Browse files

fio/nvme: Enable delay_doorbell queue pair option 



Since fio is continually polling for completions, this
option can be safely enabled.

Change-Id: I02ee3d2507d3b37f79e14d69fe90ee19c4b4eea2
Signed-off-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/447711


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
parent cf0eac8c

examples/nvme/fio_plugin/fio_plugin.c

+5 −1
Original line number Diff line number Diff line
@@ -234,6 +234,7 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, 
{

	struct thread_data	*td = cb_ctx;

	struct spdk_fio_thread	*fio_thread = td->io_ops_data;

	struct spdk_nvme_io_qpair_opts	qpopts;

	struct spdk_fio_ctrlr	*fio_ctrlr;

	struct spdk_fio_qpair	*fio_qpair;

	struct spdk_nvme_ns	*ns;
@@ -301,7 +302,10 @@ attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, 
		return;

	}



	fio_qpair->qpair = spdk_nvme_ctrlr_alloc_io_qpair(fio_ctrlr->ctrlr, NULL, 0);

	spdk_nvme_ctrlr_get_default_io_qpair_opts(fio_ctrlr->ctrlr, &qpopts, sizeof(qpopts));

	qpopts.delay_pcie_doorbell = true;



	fio_qpair->qpair = spdk_nvme_ctrlr_alloc_io_qpair(fio_ctrlr->ctrlr, &qpopts, sizeof(qpopts));

	if (!fio_qpair->qpair) {

		SPDK_ERRLOG("Cannot allocate nvme io_qpair any more\n");

		g_error = true;