From: "Asutosh Das (asd)" <asutoshd@codeaurora.org>
To: Avri Altman <Avri.Altman@wdc.com>,
Bart Van Assche <bvanassche@acm.org>,
Can Guo <cang@codeaurora.org>,
"nguyenb@codeaurora.org" <nguyenb@codeaurora.org>,
"hongwus@codeaurora.org" <hongwus@codeaurora.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"kernel-team@android.com" <kernel-team@android.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>,
Alim Akhtar <alim.akhtar@samsung.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Bean Huo <beanhuo@micron.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Kiwoong Kim <kwmad.kim@samsung.com>,
Satya Tangirala <satyat@google.com>,
open list <linux-kernel@vger.kernel.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v1 2/3] scsi: ufs: Optimize host lock on transfer requests send/compl paths
Date: Wed, 2 Jun 2021 14:18:37 -0700 [thread overview]
Message-ID: <e7605343-5785-e708-751b-72a66e4e0b67@codeaurora.org> (raw)
In-Reply-To: <DM6PR04MB657525D67B70FF3418511694FC229@DM6PR04MB6575.namprd04.prod.outlook.com>
On 5/28/2021 12:30 AM, Avri Altman wrote:
>>> Hi Bart,
>>> No it's not necessary to serialize both the paths. I think this series
>>> attempts to remove this serialization to a certain degree, which is
>>> what's giving the performance improvement.
> Btw, Is this performance improvement is on top of rq_affinity 2 or 1?
>
It's on 1.
> Thanks,
> Avri
>
>>>
>>> Even if multiqueue support would be available in the future, I think
>>> this change is apt now for the current available specification.
>> I agree - this looks like the harbinger of a major change,
>> And going further with respect of hw queues,
>> will need the spec support - e.g. doorbell per lane, etc.
>>
>> Thanks,
>> Avri
>>
>>>> Thanks,
>>>>
>>>> Bart.
>>>>
>>>
>>>
>>> Thanks,
>>> -asd
>>>
>>> --
>>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
>>> Forum,
>>> Linux Foundation Collaborative Project
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-06-02 21:18 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1621845419-14194-1-git-send-email-cang@codeaurora.org>
2021-05-24 8:36 ` [PATCH v1 1/3] scsi: ufs: Remove a redundant command completion logic in error handler Can Guo
2021-05-24 16:43 ` Bart Van Assche
2021-05-25 4:15 ` Stanley Chu
2021-05-31 7:14 ` Bean Huo
2021-05-24 8:36 ` [PATCH v1 2/3] scsi: ufs: Optimize host lock on transfer requests send/compl paths Can Guo
2021-05-24 20:10 ` Bart Van Assche
2021-05-25 1:34 ` Asutosh Das (asd)
2021-05-25 8:24 ` Avri Altman
2021-05-28 7:30 ` Avri Altman
2021-06-02 21:18 ` Asutosh Das (asd) [this message]
2021-05-25 1:40 ` Can Guo
2021-05-25 16:40 ` Bart Van Assche
2021-05-31 16:04 ` Bean Huo
2021-06-02 2:14 ` Can Guo
2021-06-03 0:18 ` Bart Van Assche
2021-06-03 2:54 ` Stanley Chu
2021-06-04 1:49 ` Can Guo
2021-06-17 2:49 ` Bart Van Assche
2021-06-23 2:04 ` Can Guo
2021-06-28 22:58 ` Bart Van Assche
2021-06-29 5:41 ` Can Guo
2021-07-01 15:57 ` Bart Van Assche
2021-05-24 8:36 ` [PATCH v1 3/3] scsi: ufs: Utilize Transfer Request List Completion Notification Register Can Guo
2021-05-31 16:05 ` Bean Huo
2021-06-03 2:54 ` Stanley Chu
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