linux-kernel - Re: [PATCH 0/7] hisi_sas: Misc bugfixes and an optimisation patch

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Message-ID: <956dafea-bca3-f3a0-318e-83399b84605c@huawei.com>
Date:   Tue, 16 Oct 2018 09:28:51 +0100
From:   John Garry <john.garry@...wei.com>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
CC:     <jejb@...ux.vnet.ibm.com>, <linuxarm@...wei.com>,
        <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/7] hisi_sas: Misc bugfixes and an optimisation patch

On 16/10/2018 05:28, Martin K. Petersen wrote:
>
> John,
>
>> As I mentioned in the thread that spawned from this, we actually can't
>> expose multiple hw queues at the moment. And, if we did, we find a
>> performance drop due to having to go back to manage this IPTT
>> internally.
>>
>> So how to handle? We're going to continue to work towards exposing
>> multiple queues to upper layer, but for the moment I think patch 6/7 is
>> a good change.
>
> Thanks for the discussion. That's exactly what I was looking for.
>
> Applied to 4.20/scsi-queue.
>

Great, thanks.