From aef71e29a02f9526d259bf27fee5e280feab0f3d Mon Sep 17 00:00:00 2001
From: Ben Walker <benjamin.walker@intel.com>
Date: Tue, 22 Mar 2022 14:25:26 -0700
Subject: [PATCH] spdk_dd: Use IORING_SETUP_SQPOLL mode

This has better performance than interrupt mode, so it is a better
default.

Change-Id: Ia2e13058b9b36874cd402f97ef57db77192f596a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12021
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 app/spdk_dd/spdk_dd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/spdk_dd/spdk_dd.c b/app/spdk_dd/spdk_dd.c
index d3e6ea1ef..981b8ddea 100644
--- a/app/spdk_dd/spdk_dd.c
+++ b/app/spdk_dd/spdk_dd.c
@@ -857,7 +857,12 @@ dd_run(void *arg1)
 #ifdef SPDK_CONFIG_URING
 		if (g_opts.aio == false) {
 			g_job.u.uring.poller = spdk_poller_register(dd_uring_poll, NULL, 0);
-			io_uring_queue_init(g_opts.queue_depth * 2, &g_job.u.uring.ring, 0);
+			rc = io_uring_queue_init(g_opts.queue_depth * 2, &g_job.u.uring.ring, IORING_SETUP_SQPOLL);
+			if (rc) {
+				SPDK_ERRLOG("Failed to create io_uring: %d (%s)\n", rc, spdk_strerror(-rc));
+				dd_exit(rc);
+				return;
+			}
 			g_job.u.uring.active = true;
 		} else
 #endif