Commit 4cbdeb94 authored by Changpeng Liu's avatar Changpeng Liu
Browse files

nvme: add reservation notificaiton log page and mask definition 



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: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/439340


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent e7da2487

include/spdk/nvme_spec.h

+33 −0
Original line number Diff line number Diff line
@@ -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

 */