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nvme: set the PRACT bit when using Write Zeroes with T10 PI

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When using Write Zeroes on a namespace that has protection
information enabled they behavior without the PRACT bit
counter-intuitive and will generally lead to validation failures
when reading the written blocks.  Fix this by always setting the
PRACT bit that generates matching PI data on the fly.

Fixes: 6e02318eae ("nvme: add support for the Write Zeroes command")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2021-07-21 10:00:11 +02:00
parent 234211b8dd
commit aaeb7bb061
1 changed files with 4 additions and 1 deletions
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5
drivers/nvme/host/core.c
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@ -900,7 +900,10 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->write_zeroes.length =
cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
cmnd->write_zeroes.control = 0;
if (nvme_ns_has_pi(ns))
cmnd->write_zeroes.control = cpu_to_le16(NVME_RW_PRINFO_PRACT);
else
cmnd->write_zeroes.control = 0;
return BLK_STS_OK;
}