| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 097/167] nvme: set the PRACT bit when using Write Zeroes with T10 PI | Date | Mon, 26 Jul 2021 17:38:50 +0200 |
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From: Christoph Hellwig <hch@lst.de>
[ Upstream commit aaeb7bb061be545251606f4d9c82d710ca2a7c8e ]
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: 6e02318eaea5 ("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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/nvme/host/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index f520a71a361f..ff5a16b17133 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -751,7 +751,10 @@ 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; } -- 2.30.2
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