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nvme: define constants for identification values

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Improve code readability by defining the specification's constants that
the driver is using when decoding identification payloads.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Bart van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Keith Busch
2020-04-03 10:53:46 -07:00
committed by Jens Axboe
parent d02abd1986
commit 92decf118f
3 changed files with 14 additions and 7 deletions
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6
include/linux/nvme.h
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@@ -301,6 +301,8 @@ struct nvme_id_ctrl {
};
enum {
NVME_CTRL_CMIC_MULTI_CTRL = 1 << 1,
NVME_CTRL_CMIC_ANA = 1 << 3,
NVME_CTRL_ONCS_COMPARE = 1 << 0,
NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
NVME_CTRL_ONCS_DSM = 1 << 2,
@@ -396,8 +398,12 @@ enum {
enum {
NVME_NS_FEAT_THIN = 1 << 0,
NVME_NS_FEAT_ATOMICS = 1 << 1,
NVME_NS_FEAT_IO_OPT = 1 << 4,
NVME_NS_ATTR_RO = 1 << 0,
NVME_NS_FLBAS_LBA_MASK = 0xf,
NVME_NS_FLBAS_META_EXT = 0x10,
NVME_NS_NMIC_SHARED = 1 << 0,
NVME_LBAF_RP_BEST = 0,
NVME_LBAF_RP_BETTER = 1,
NVME_LBAF_RP_GOOD = 2,