This is a note to let you know that I've just added the patch titled
scsi: ufs: core: Fix MCQ nr_hw_queues
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-ufs-core-fix-mcq-nr_hw_queues.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b4e6d8e496d53c3f265a884bc193247a4338660e
Author: Po-Wen Kao <powen.kao@xxxxxxxxxxxx>
Date: Thu May 4 23:44:51 2023 +0800
scsi: ufs: core: Fix MCQ nr_hw_queues
[ Upstream commit 72a81bb0b6fc9b759ac0fdaca3ec5884a8b2f304 ]
Since MAXQ is 0-based value, add one to obtain number of hardware queues.
Signed-off-by: Po-Wen Kao <powen.kao@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230504154454.26654-4-powen.kao@xxxxxxxxxxxx
Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
Reviewed-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c
index 937933d3f77c2..51b3c6ae781df 100644
--- a/drivers/ufs/core/ufs-mcq.c
+++ b/drivers/ufs/core/ufs-mcq.c
@@ -150,7 +150,8 @@ static int ufshcd_mcq_config_nr_queues(struct ufs_hba *hba)
u32 hba_maxq, rem, tot_queues;
struct Scsi_Host *host = hba->host;
- hba_maxq = FIELD_GET(MAX_QUEUE_SUP, hba->mcq_capabilities);
+ /* maxq is 0 based value */
+ hba_maxq = FIELD_GET(MAX_QUEUE_SUP, hba->mcq_capabilities) + 1;
tot_queues = UFS_MCQ_NUM_DEV_CMD_QUEUES + read_queues + poll_queues +
rw_queues;
