Re: [PATCH v3 3/6] scsi: ufs: core: Fix mcq nr_hw_queues

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On 23.02.23 4:27 PM, Po-Wen Kao wrote:
Since MAXQ is 0 based value, add one to obtain number of hardware queue.

MAXQ in Multi-Circular Queue Capability Register is 0 based, hence ..


Signed-off-by: Po-Wen Kao<powen.kao@xxxxxxxxxxxx>
---
  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 a39746b2a8be..f9af658b4ba2 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 ;

Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>




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