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Message-ID: <073ae18a-a80e-4a95-a093-36210a3bb230@grimberg.me>
Date: Tue, 21 May 2024 13:15:33 +0300
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Subject: Re: [PATCH v3 1/1] nvme: multipath: Implemented new iopolicy
 "queue-depth"
From: Sagi Grimberg <sagi@grimberg.me>
To: Nilay Shroff <nilay@linux.ibm.com>, John Meneghini <jmeneghi@redhat.com>,
 kbusch@kernel.org, hch@lst.de, emilne@redhat.com
Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
 jrani@purestorage.com, randyj@purestorage.com, hare@kernel.org
References: <20240520202045.427110-1-jmeneghi@redhat.com>
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 <3b8d33db-f2c3-469a-bfa0-8fc52594f243@grimberg.me>
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On 21/05/2024 13:11, Sagi Grimberg wrote:
>
>>> Don't think this matters because cancellation only happens when we
>>> teardown the controller anyways...
>>>
>> I think in case if we reset the nvme controller then we don't teardown
>> controller, isn't it? In this case we cancel all pending requests, and
>> later restart the controller.
>
> Exactly, nvme_mpath_init_ctrl resets the counter.

Except you're right, the counter reset needs to move to 
nvme_mpath_init_identify()
or some place that is called on every controller reset.