From: Christoph Hellwig <hch@lst.de>
To: Maximilian Heyne <mheyne@amazon.de>
Cc: Amit Shah <aams@amazon.de>,
stable@vger.kernel.org, Keith Busch <kbusch@kernel.org>,
Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@lst.de>,
Sagi Grimberg <sagi@grimberg.me>,
linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nvme: validate cntlid's only for nvme >= 1.1.0
Date: Tue, 30 Jun 2020 15:33:58 +0200 [thread overview]
Message-ID: <20200630133358.GA20602@lst.de> (raw)
In-Reply-To: <20200630122923.70282-1-mheyne@amazon.de>
On Tue, Jun 30, 2020 at 12:29:23PM +0000, Maximilian Heyne wrote:
> Controller ID's (cntlid) for NVMe devices were introduced in version
> 1.1.0 of the specification. Controllers that follow the older 1.0.0 spec
> don't set this field so it doesn't make sense to validate it. On the
> contrary, when using SR-IOV this check breaks VFs as they are all part
> of the same NVMe subsystem.
>
> Signed-off-by: Maximilian Heyne <mheyne@amazon.de>
> Cc: <stable@vger.kernel.org> # 5.4+
The first hunk looks ok, the second doesn't make sense as fabrics
was only added with NVMe 1.2.2. I can fix it up when applying if you
are ok with that.
But you guys really shouldn't be doing SR-IOV with 1.0 controllers
independent of this..
next prev parent reply other threads:[~2020-06-30 13:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-30 12:29 [PATCH] nvme: validate cntlid's only for nvme >= 1.1.0 Maximilian Heyne
2020-06-30 13:33 ` Christoph Hellwig [this message]
2020-06-30 13:36 ` Christoph Hellwig
2020-06-30 14:01 ` Maximilian Heyne
2020-06-30 14:08 ` Keith Busch
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