linux-kernel - Re: [PATCH v5 16/16] ufs: core: mcq: Enable Multi Circular Queue

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Date:   Mon, 28 Nov 2022 22:33:05 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Asutosh Das <quic_asutoshd@...cinc.com>
Cc:     quic_cang@...cinc.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, quic_nguyenb@...cinc.com,
        quic_xiaosenh@...cinc.com, stanley.chu@...iatek.com,
        eddie.huang@...iatek.com, daejun7.park@...sung.com,
        bvanassche@....org, avri.altman@....com, beanhuo@...ron.com,
        linux-arm-msm@...r.kernel.org,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Jinyoung Choi <j-young.choi@...sung.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 16/16] ufs: core: mcq: Enable Multi Circular Queue

On Tue, Nov 22, 2022 at 08:10:29PM -0800, Asutosh Das wrote:
> Enable MCQ in the Host Controller.
> 
> Signed-off-by: Asutosh Das <quic_asutoshd@...cinc.com>

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

Thanks,
Mani

> Reviewed-by: Bart Van Assche <bvanassche@....org>
> ---
>  drivers/ufs/core/ufshcd.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 8416d42..41005b8 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -8351,6 +8351,12 @@ static void ufshcd_config_mcq(struct ufs_hba *hba)
>  
>  	hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED;
>  	hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED;
> +
> +	/* Select MCQ mode */
> +	ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1,
> +		      REG_UFS_MEM_CFG);
> +	hba->mcq_enabled = true;
> +
>  	dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, queue_depth=%d\n",
>  		 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT],
>  		 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL],
> -- 
> 2.7.4
> 

-- 
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