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

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Message-ID: <00f7a7e127467c0de98b114f2fe38f836601eef8.camel@kernel.crashing.org>
Date:   Tue, 23 Jul 2019 07:54:49 +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 23:51 +1000, Benjamin Herrenschmidt wrote:
> 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.

BTW. It's been solid for 3 days now, so I think that was the last of it
(famous last words...)

Cheers,
Ben.