[PATCH AUTOSEL 6.3 51/67] scsi: ufs: core: Fix MCQ nr_hw_queues

Sasha Levin sashal at kernel.org
Thu May 25 11:31:28 PDT 2023


From: Po-Wen Kao <powen.kao at mediatek.com>

[ 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 at mediatek.com>
Link: https://lore.kernel.org/r/20230504154454.26654-4-powen.kao@mediatek.com
Reviewed-by: Bean Huo <beanhuo at micron.com>
Reviewed-by: Manivannan Sadhasivam <mani at kernel.org>
Reviewed-by: Bart Van Assche <bvanassche at acm.org>
Reviewed-by: Stanley Chu <stanley.chu at mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen at oracle.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/ufs/core/ufs-mcq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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;
-- 
2.39.2




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