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nvme: add reservation notificaiton log page and mask definition

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Upcoming patches will add reservation support to NVMoF target,
a reservation notificaiton log is generated when registration/
reservation was preempted or released.

Change-Id: I9ae0c1995fbecef3e3666dfe624a3e635e20cdfc
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/439340
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Changpeng Liu 2019-01-07 01:57:14 -05:00
parent e7da248713
commit 4cbdeb9479
1 changed files with 33 additions and 0 deletions
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33
include/spdk/nvme_spec.h
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@ -1734,6 +1734,39 @@ enum spdk_nvme_reservation_release_action {
SPDK_NVME_RESERVE_CLEAR = 0x1,
};
/**
* Reservation notification log page type
*/
enum spdk_nvme_reservation_notification_log_page_type {
SPDK_NVME_RESERVATION_LOG_PAGE_EMPTY = 0x0,
SPDK_NVME_REGISTRATION_PREEMPTED = 0x1,
SPDK_NVME_RESERVATION_RELEASED = 0x2,
SPDK_NVME_RESERVATION_PREEMPTED = 0x3,
};
/**
* Reservation notification log
*/
struct spdk_nvme_reservation_notification_log {
/** 64-bit incrementing reservation notification log page count */
uint64_t log_page_count;
/** Reservation notification log page type */
uint8_t type;
/** Number of additional available reservation notification log pages */
uint8_t num_avail_log_pages;
uint8_t reserved[2];
uint32_t nsid;
uint8_t reserved1[48];
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_nvme_reservation_notification_log) == 64, "Incorrect size");
/* Mask Registration Preempted Notificaton */
#define SPDK_NVME_REGISTRATION_PREEMPTED_MASK (1U << 1)
/* Mask Reservation Released Notification */
#define SPDK_NVME_RESERVATION_RELEASED_MASK (1U << 2)
/* Mask Reservation Preempted Notification */
#define SPDK_NVME_RESERVATION_PREEMPTED_MASK (1U << 3)
/**
* Log page identifiers for SPDK_NVME_OPC_GET_LOG_PAGE
*/