linux-kernel - Re: [PATCH v3 3/6] scsi: ufs: core: Fix mcq nr_hw

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Date:   Wed, 1 Mar 2023 12:43:43 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Po-Wen Kao <powen.kao@...iatek.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        wsd_upstream@...iatek.com, peter.wang@...iatek.com,
        stanley.chu@...iatek.com, alice.chao@...iatek.com,
        naomi.chu@...iatek.com, chun-hung.wu@...iatek.com,
        cc.chou@...iatek.com, eddie.huang@...iatek.com,
        mason.zhang@...iatek.com, chaotian.jing@...iatek.com,
        jiajie.hao@...iatek.com
Subject: Re: [PATCH v3 3/6] scsi: ufs: core: Fix mcq nr_hw_queues

On Thu, Feb 23, 2023 at 11:27:53PM +0800, Po-Wen Kao wrote:
> Since MAXQ is 0 based value, add one to obtain number of hardware queue.
> 
> Signed-off-by: Po-Wen Kao <powen.kao@...iatek.com>

Reviewed-by: Manivannan Sadhasivam <mani@...nel.org>

Thanks,
Mani

> ---
>  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 ;
>  
>  	tot_queues = UFS_MCQ_NUM_DEV_CMD_QUEUES + read_queues + poll_queues +
>  			rw_queues;
> -- 
> 2.18.0
> 

-- 
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