nvme: check the PRINFO bit before deciding the host buffer length

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[ Upstream commit 4d6b1c95b9 ]

According to NVMe spec v1.4, section 8.3.1, the PRINFO bit and
the metadata size play a vital role in deteriming the host buffer size.

If PRIFNO bit is set and MS==8, the host doesn't add the metadata buffer,
instead the controller adds it.

Signed-off-by: Revanth Rajashekar <revanth.rajashekar@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Revanth Rajashekar 2021-01-14 18:55:07 -07:00 • committed by Greg Kroah-Hartman

parent a9fd4ef6e5

commit 57f26d9d09

1 changed files with 15 additions and 2 deletions

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drivers/nvme/host/core.c

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