linux-kernel - Re: [RFC PATCH v3 2/4] ufs: core: mcq: Adds Multi-Circular Queue support

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Date:   Mon, 05 Sep 2022 16:19:43 +0200
From:   Bean Huo <huobean@...il.com>
To:     Asutosh Das <quic_asutoshd@...cinc.com>, quic_nguyenb@...cinc.com,
        quic_xiaosenh@...cinc.com, stanley.chu@...iatek.com,
        adrian.hunter@...el.com, bvanassche@....org, avri.altman@....com,
        mani@...nel.org, quic_cang@...cinc.com, beanhuo@...ron.com,
        martin.petersen@...cle.com, linux-scsi@...r.kernel.org
Cc:     linux-arm-msm@...r.kernel.org,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Jinyoung Choi <j-young.choi@...sung.com>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v3 2/4] ufs: core: mcq: Adds Multi-Circular Queue
 support

On Fri, 2022-09-02 at 15:41 -0700, Asutosh Das wrote:
> +struct ufs_hw_queue *ufshcd_mcq_req_to_hwq(struct ufs_hba *hba,
> +                                        struct request *req)
> +{
> +       u32 utag, hwq;
> +
> +       utag = blk_mq_unique_tag(req);
> +       hwq = blk_mq_unique_tag_to_hwq(utag);

I think you could directly get queue number from req->mq_hctx-
>queue_num.