linux-kernel - Re: [PATCH v3] nvme-pci: Support shared tags across queues for Apple 2018 controllers

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Message-ID: <91ef44522140bf83720f6c377648b307964d34e4.camel@kernel.crashing.org>
Date:   Fri, 19 Jul 2019 23:51:56 +1000
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     Christoph Hellwig <hch@....de>
Cc:     linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Paul Pawlowski <paul@...rm.io>, Jens Axboe <axboe@...com>,
        Keith Busch <kbusch@...nel.org>,
        Minwoo Im <minwoo.im.dev@...il.com>,
        Damien Le Moal <Damien.LeMoal@....com>
Subject: Re: [PATCH v3] nvme-pci: Support shared tags across queues for
 Apple 2018 controllers

On Fri, 2019-07-19 at 14:28 +0200, Christoph Hellwig wrote:
> Yikes, that things looks worse and worse.  I think at this point
> we'll
> have to defer the support to 5.4 unfortunately as it is getting more
> and more involved..

Well, at least v3 of that patch, thanks to Damien's idea, isn't
particularly invasive and I've hammered the SSD with it over night with
a combination of IOs and smart commands, it's solid.

But if you prefer waiting for 5.4, no worries.

Cheers,
Ben.