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Date:   Tue, 20 Apr 2021 11:34:53 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Mike Snitzer <snitzer@redhat.com>
Cc:     Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
        dm-devel@redhat.com, linux-block@vger.kernel.org,
        linux-nvme@lists.infradead.org
Subject: Re: [PATCH v4 3/3] nvme: decouple basic ANA log page re-read
 support from native multipathing
Message-ID: <20210420093453.GB28625@lst.de>
References: <20210416235329.49234-1-snitzer@redhat.com> <20210416235329.49234-4-snitzer@redhat.com>
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On Fri, Apr 16, 2021 at 07:53:29PM -0400, Mike Snitzer wrote:
> Whether or not ANA is present is a choice of the target implementation;
> the host (and whether it supports multipathing) has _zero_ influence on
> this. If the target declares a path as 'inaccessible' the path _is_
> inaccessible to the host. As such, ANA support should be functional
> even if native multipathing is not.

NAK.  nvme-multipathing is the only supported option for subsystems with
multiple controllers.