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nvme: add reservation command's defines

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This is a preparation patch for NVMeOF target reservation
commands implantation.
Add the defines of reservation command, such as reservation log
and sub operations.

Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Tested-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Guixin Liu 2024-11-06 15:34:45 +08:00 committed by Keith Busch
parent 43d5d3b417
commit 1900e1a449
1 changed files with 68 additions and 0 deletions
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68
include/linux/nvme.h
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@ -2037,4 +2037,72 @@ struct nvme_completion {
#define NVME_MINOR(ver) (((ver) >> 8) & 0xff)
#define NVME_TERTIARY(ver) ((ver) & 0xff)
enum {
NVME_AEN_RESV_LOG_PAGE_AVALIABLE = 0x00,
};
enum {
NVME_PR_LOG_EMPTY_LOG_PAGE = 0x00,
NVME_PR_LOG_REGISTRATION_PREEMPTED = 0x01,
NVME_PR_LOG_RESERVATION_RELEASED = 0x02,
NVME_PR_LOG_RESERVATOPM_PREEMPTED = 0x03,
};
enum {
NVME_PR_NOTIFY_BIT_REG_PREEMPTED = 1,
NVME_PR_NOTIFY_BIT_RESV_RELEASED = 2,
NVME_PR_NOTIFY_BIT_RESV_PREEMPTED = 3,
};
struct nvme_pr_log {
__le64 count;
__u8 type;
__u8 nr_pages;
__u8 rsvd1[2];
__le32 nsid;
__u8 rsvd2[48];
};
struct nvmet_pr_register_data {
__le64 crkey;
__le64 nrkey;
};
struct nvmet_pr_acquire_data {
__le64 crkey;
__le64 prkey;
};
struct nvmet_pr_release_data {
__le64 crkey;
};
enum nvme_pr_capabilities {
NVME_PR_SUPPORT_PTPL = 1,
NVME_PR_SUPPORT_WRITE_EXCLUSIVE = 1 << 1,
NVME_PR_SUPPORT_EXCLUSIVE_ACCESS = 1 << 2,
NVME_PR_SUPPORT_WRITE_EXCLUSIVE_REG_ONLY = 1 << 3,
NVME_PR_SUPPORT_EXCLUSIVE_ACCESS_REG_ONLY = 1 << 4,
NVME_PR_SUPPORT_WRITE_EXCLUSIVE_ALL_REGS = 1 << 5,
NVME_PR_SUPPORT_EXCLUSIVE_ACCESS_ALL_REGS = 1 << 6,
NVME_PR_SUPPORT_IEKEY_VER_1_3_DEF = 1 << 7,
};
enum nvme_pr_register_action {
NVME_PR_REGISTER_ACT_REG = 0,
NVME_PR_REGISTER_ACT_UNREG = 1,
NVME_PR_REGISTER_ACT_REPLACE = 1 << 1,
};
enum nvme_pr_acquire_action {
NVME_PR_ACQUIRE_ACT_ACQUIRE = 0,
NVME_PR_ACQUIRE_ACT_PREEMPT = 1,
NVME_PR_ACQUIRE_ACT_PREEMPT_AND_ABORT = 1 << 1,
};
enum nvme_pr_release_action {
NVME_PR_RELEASE_ACT_RELEASE = 0,
NVME_PR_RELEASE_ACT_CLEAR = 1,
};
#endif /* _LINUX_NVME_H */