From 9806eb5c79579e200f88660e043706eb490547e6 Mon Sep 17 00:00:00 2001
From: Dave Jiang <dave.jiang@intel.com>
Date: Fri, 6 Aug 2021 10:38:37 -0700
Subject: [PATCH] dmaengine: idxd: set descriptor allocation size to threshold for swq
Git-commit: 9806eb5c79579e200f88660e043706eb490547e6
Patch-mainline: v5.15-rc1
References: jsc#SLE-18899

Since submission is sent to limited portal, the actual wq size for shared
wq is set by the threshold rather than the wq size. When the wq type is
shared, set the allocated descriptors to the threshold.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162827151733.3459223.3829837172226042408.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/dma/idxd/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index 21f0d732b76e..e093cf225a5c 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -141,8 +141,8 @@ int idxd_wq_alloc_resources(struct idxd_wq *wq)
 	if (wq->type != IDXD_WQT_KERNEL)
 		return 0;
 
-	wq->num_descs = wq->size;
-	num_descs = wq->size;
+	num_descs = wq_dedicated(wq) ? wq->size : wq->threshold;
+	wq->num_descs = num_descs;
 
 	rc = alloc_hw_descs(wq, num_descs);
 	if (rc < 0)
-- 
2.26.2