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Message-ID: <e83ae04f-2d13-4869-9254-b66eded26be4@acm.org>
Date: Tue, 28 Nov 2023 13:49:37 -0800
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From: Bart Van Assche <bvanassche@acm.org>
Subject: Re: [PATCH v15 19/19] scsi: ufs: Inform the block layer about write
 ordering
To: Can Guo <quic_cang@quicinc.com>,
 "Martin K . Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
 Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
 "Bao D . Nguyen" <quic_nguyenb@quicinc.com>,
 Avri Altman <avri.altman@wdc.com>, "James E.J. Bottomley"
 <jejb@linux.ibm.com>, Stanley Chu <stanley.chu@mediatek.com>,
 Manivannan Sadhasivam <mani@kernel.org>,
 Asutosh Das <quic_asutoshd@quicinc.com>, Peter Wang
 <peter.wang@mediatek.com>, Bean Huo <beanhuo@micron.com>,
 Arthur Simchaev <Arthur.Simchaev@wdc.com>
References: <20231114211804.1449162-1-bvanassche@acm.org>
 <20231114211804.1449162-20-bvanassche@acm.org>
 <ea3b4046-2fe8-4fac-b170-9298f2266cda@quicinc.com>
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On 11/27/23 17:45, Can Guo wrote:
> I got some time testing these changes on SM8650 with MCQ enabled. I
> found that with these changes in place (with AH8 disabled). Even we
> can make sure UFS driver does not re-order requests in MCQ mode, the
> reorder is still happening while running FIO and can be seen from
> ftrace logs.

Hi Can,

Thank you for having taken the time to run this test and also for having
shared your findings. I have not yet had the chance to test this patch
series myself on an MCQ test setup. I will try to locate such a test
setup and test this patch series on an MCQ setup.

Thanks,

Bart.