linux-kernel - Re: [PATCH 1/2] scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN

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Message-ID: <CAGaU9a_dCZA3A_1TP=ijGgXTfiNZffvBe875xXXCKmoN8bQPxA@mail.gmail.com>
Date:   Wed, 29 Mar 2023 09:32:03 +0800
From:   Stanley Chu <chu.stanley@...il.com>
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>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.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 1/2] scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR

Hi Po-Wen,

On Tue, Mar 28, 2023 at 6:42 PM Po-Wen Kao <powen.kao@...iatek.com> wrote:
>
> Quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR is introduced for plaforms that
> implement different interrupt topology from UFSHCI 4.0 spec.
> Some platform raise per hw queue interrupt in addition to
> CQES (traditional) when ESI is disabled.
>
> Enable this quirk will disable CQES and use only per hw queue
> interrupt.
>
> Signed-off-by: Po-Wen Kao <powen.kao@...iatek.com>
> ---
>  drivers/ufs/core/ufshcd.c | 8 ++++++--
>  include/ufs/ufshcd.h      | 7 +++++++
>  2 files changed, 13 insertions(+), 2 deletions(-)

Reviewed-by: Stanley Chu <stanley.chu@...iatek.com>