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nvme: fix write zeroes pi

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Write Zeroes sets PRACT when block integrity is enabled (as it should),
but neglects to also set the reftag which is expected by reads. This
causes protection errors on reads.

Fix this by setting the reftag for type 1 and 2 (for type 3, reads will
not check the reftag).

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Klaus Jensen 2021-11-10 10:19:06 +01:00 committed by Christoph Hellwig
parent 8e8aaf512a
commit 00b33cf3da
1 changed files with 12 additions and 3 deletions
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15
drivers/nvme/host/core.c
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@ -895,10 +895,19 @@ 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);
if (nvme_ns_has_pi(ns))
if (nvme_ns_has_pi(ns)) {
cmnd->write_zeroes.control = cpu_to_le16(NVME_RW_PRINFO_PRACT);
else
cmnd->write_zeroes.control = 0;
switch (ns->pi_type) {
case NVME_NS_DPS_PI_TYPE1:
case NVME_NS_DPS_PI_TYPE2:
cmnd->write_zeroes.reftag =
cpu_to_le32(t10_pi_ref_tag(req));
break;
}
}
return BLK_STS_OK;
}