[PATCH] dmaengine: idxd: set descriptor allocation size to threshold for swq

[PATCH] dmaengine: idxd: set descriptor allocation size to threshold for swq

[Dave Jiang]

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>
---
 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)

Re: [PATCH] dmaengine: idxd: set descriptor allocation size to threshold for swq

[Vinod Koul]

On 06-08-21, 10:38, Dave Jiang wrote:
> 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.

Applied, thanks

-- 
~Vinod