diff options
| author | Keith Busch <kbusch@kernel.org> | 2022-03-03 12:13:06 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-03-07 12:48:35 -0700 |
| commit | 84b735429f5fe6f57fc0b3fff3932dce1471e668 (patch) | |
| tree | 5b5d97fb1256ee16a197f0df89bb94bfce63c153 /drivers/nvme/host | |
| parent | c340b990d58c856c1636e0c10abb9e4351ad852a (diff) | |
nvme: allow integrity on extended metadata formats
The block integrity subsystem knows how to construct protection
information buffers with metadata beyond the protection information
fields. Remove the driver restriction.
Note, this can only work if the PI field appears first in the metadata,
as the integrity subsystem doesn't calculate guard tags on preceding
metadata.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20220303201312.3255347-3-kbusch@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme/host')
| -rw-r--r-- | drivers/nvme/host/core.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index bcbe12fd4984..cd13b7dcd18f 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1616,12 +1616,9 @@ static void nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id) { struct nvme_ctrl *ctrl = ns->ctrl; - /* - * The PI implementation requires the metadata size to be equal to the - * t10 pi tuple size. - */ ns->ms = le16_to_cpu(id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ms); - if (ns->ms == sizeof(struct t10_pi_tuple)) + if (id->dps & NVME_NS_DPS_PI_FIRST || + ns->ms == sizeof(struct t10_pi_tuple)) ns->pi_type = id->dps & NVME_NS_DPS_PI_MASK; else ns->pi_type = 0; |