From: Christoph Hellwig <hch@lst.de>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Max Gurtovoy <maxg@mellanox.com>,
axboe@kernel.dk, keith.busch@intel.com, sagi@grimberg.me,
israelr@mellanox.com, linux-nvme@lists.infradead.org,
linux-block@vger.kernel.org, shlomin@mellanox.com, hch@lst.de
Subject: Re: [PATCH v4 1/3] block: centralize PI remapping logic to the block layer
Date: Mon, 16 Sep 2019 10:03:28 +0200 [thread overview]
Message-ID: <20190916080328.GB25898@lst.de> (raw)
In-Reply-To: <yq1lfurdejc.fsf@oracle.com>
On Fri, Sep 13, 2019 at 06:20:23PM -0400, Martin K. Petersen wrote:
>
> Max,
>
> > what about broken type 3 in the NVMe spec ?
> >
> > I don't really know what is broken there but maybe we can avoid
> > supporting it for NVMe until it's fixed.
>
> The intent in NVMe was for Type 3 to work exactly like it does in
> SCSI. But the way the spec is worded it does not. So it is unclear
> whether implementors (if any) went with the SCSI compatible route or
> with what the NVMe spec actually says.
Do we actually have Linux users of Type 3 at all? I think for NVMe
we could just trivially disable Linux support, and I suspect for SCSI
as well, but I'll have to defer to you on that.
next prev parent reply other threads:[~2019-09-16 8:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-08 15:26 [PATCH v4 1/3] block: centralize PI remapping logic to the block layer Max Gurtovoy
2019-09-08 15:26 ` [PATCH v4 2/3] block: don't remap ref tag for T10 PI type 0 Max Gurtovoy
2019-09-09 2:22 ` Martin K. Petersen
2019-09-09 2:36 ` Keith Busch
2019-09-09 2:49 ` Martin K. Petersen
2019-09-09 13:31 ` Max Gurtovoy
2019-09-08 15:26 ` [PATCH v4 3/3] nvme: remove PI values definition from NVMe subsystem Max Gurtovoy
2019-09-09 2:21 ` [PATCH v4 1/3] block: centralize PI remapping logic to the block layer Martin K. Petersen
2019-09-09 13:55 ` Max Gurtovoy
2019-09-10 2:29 ` Martin K. Petersen
2019-09-10 22:27 ` Max Gurtovoy
2019-09-11 1:16 ` Martin K. Petersen
2019-09-11 9:12 ` Max Gurtovoy
2019-09-13 22:20 ` Martin K. Petersen
2019-09-16 8:03 ` Christoph Hellwig [this message]
2019-09-16 17:19 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190916080328.GB25898@lst.de \
--to=hch@lst.de \
--cc=axboe@kernel.dk \
--cc=israelr@mellanox.com \
--cc=keith.busch@intel.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=martin.petersen@oracle.com \
--cc=maxg@mellanox.com \
--cc=sagi@grimberg.me \
--cc=shlomin@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).