84 struct scsi_disk {  struct
88 	 * disk_dev is used to show attributes in /sys/class/scsi_disk/,  argument
91 	struct device	disk_dev;
92 	struct gendisk	*disk;
93 	struct opal_dev *opal_dev;
96 	struct zoned_disk_info	early_zone_info;
98 	struct zoned_disk_info	zone_info;
99 	u32		zones_optimal_open;
100 	u32		zones_optimal_nonseq;
101 	u32		zones_max_open;
106 	u32		zone_starting_lba_gran;
107 	u32		*zones_wp_offset;
108 	spinlock_t	zones_wp_offset_lock;
109 	u32		*rev_wp_offset;
110 	struct mutex	rev_mutex;
111 	struct work_struct zone_wp_offset_work;
112 	char		*zone_wp_update_buf;
114 	atomic_t	openers;
115 	sector_t	capacity;	/* size in logical blocks */
116 	int		max_retries;
117 	u32		min_xfer_blocks;
118 	u32		max_xfer_blocks;
119 	u32		opt_xfer_blocks;
120 	u32		max_ws_blocks;
121 	u32		max_unmap_blocks;
122 	u32		unmap_granularity;
123 	u32		unmap_alignment;
124 	u32		index;
125 	unsigned int	physical_block_size;
126 	unsigned int	max_medium_access_timeouts;
127 	unsigned int	medium_access_timed_out;
128 	u8		media_present;
129 	u8		write_prot;
130 	u8		protection_type;/* Data Integrity Field */
154 #define to_scsi_disk(obj) container_of(obj, struct scsi_disk, disk_dev)  argument
156 static inline struct scsi_disk *scsi_disk(struct gendisk *disk)  in scsi_disk()  function