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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Max Gurtovoy <maxg@mellanox.com>
Cc: axboe@kernel.dk, linux-block@vger.kernel.org, sagi@grimberg.me,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	israelr@mellanox.com, linux-nvme@lists.infradead.org,
	keith.busch@intel.com, shlomin@mellanox.com, hch@lst.de
Subject: Re: [PATCH v4 1/3] block: centralize PI remapping logic to the block layer
Date: Fri, 13 Sep 2019 18:20:23 -0400	[thread overview]
Message-ID: <yq1lfurdejc.fsf@oracle.com> (raw)
In-Reply-To: <e59b2d78-4cf6-971a-1926-7969140d2a01@mellanox.com> (Max Gurtovoy's message of "Wed, 11 Sep 2019 12:12:08 +0300")


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.

-- 
Martin K. Petersen	Oracle Linux Engineering

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  reply	other threads:[~2019-09-13 22:20 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 [this message]
2019-09-16  8:03               ` Christoph Hellwig
2019-09-16 17:19                 ` Martin K. Petersen

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