disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/s390/block/dasd_int.h
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@@ -187,6 +187,8 @@
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 	void (*callback)(struct dasd_ccw_req *, void *data);
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 	void *callback_data;
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+	unsigned int proc_bytes;	/* bytes for partial completion */
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+	unsigned int trkcount;		/* count formatted tracks */
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 };
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 /*
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@@ -268,7 +270,6 @@
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 	struct module *owner;
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 	char ebcname[8];	/* a name used for tagging and printks */
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 	char name[8];		/* a name used for tagging and printks */
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-	int max_blocks;		/* maximum number of blocks to be chained */
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 	struct list_head list;	/* used for list of disciplines */
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@@ -297,7 +298,7 @@
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 	 * e.g. verify that new path is compatible with the current
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 	 * configuration.
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 	 */
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-	int (*verify_path)(struct dasd_device *, __u8);
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+	int (*pe_handler)(struct dasd_device *, __u8);
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 	/*
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 	 * Last things to do when a device is set online, and first things
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@@ -307,6 +308,10 @@
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 	int (*online_to_ready) (struct dasd_device *);
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 	int (*basic_to_known)(struct dasd_device *);
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+	/*
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+	 * Initialize block layer request queue.
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+	 */
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+	void (*setup_blk_queue)(struct dasd_block *);
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 	/* (struct dasd_device *);
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 	 * Device operation functions. build_cp creates a ccw chain for
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 	 * a block device request, start_io starts the request and
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@@ -367,6 +372,26 @@
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 	void (*disable_hpf)(struct dasd_device *);
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 	int (*hpf_enabled)(struct dasd_device *);
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 	void (*reset_path)(struct dasd_device *, __u8);
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+
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+	/*
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+	 * Extent Space Efficient (ESE) relevant functions
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+	 */
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+	int (*is_ese)(struct dasd_device *);
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+	/* Capacity */
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+	int (*space_allocated)(struct dasd_device *);
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+	int (*space_configured)(struct dasd_device *);
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+	int (*logical_capacity)(struct dasd_device *);
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+	int (*release_space)(struct dasd_device *, struct format_data_t *);
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+	/* Extent Pool */
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+	int (*ext_pool_id)(struct dasd_device *);
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+	int (*ext_size)(struct dasd_device *);
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+	int (*ext_pool_cap_at_warnlevel)(struct dasd_device *);
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+	int (*ext_pool_warn_thrshld)(struct dasd_device *);
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+	int (*ext_pool_oos)(struct dasd_device *);
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+	int (*ext_pool_exhaust)(struct dasd_device *, struct dasd_ccw_req *);
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+	struct dasd_ccw_req *(*ese_format)(struct dasd_device *,
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+					   struct dasd_ccw_req *, struct irb *);
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+	int (*ese_read)(struct dasd_ccw_req *, struct irb *);
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 };
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 extern struct dasd_discipline *dasd_diag_discipline_pointer;
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@@ -386,6 +411,7 @@
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 #define DASD_EER_NOPATH      2
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 #define DASD_EER_STATECHANGE 3
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 #define DASD_EER_PPRCSUSPEND 4
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+#define DASD_EER_NOSPC	     5
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 /* DASD path handling */
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@@ -451,6 +477,11 @@
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 	spinlock_t lock;
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 };
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+struct dasd_format_entry {
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+	struct list_head list;
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+	sector_t track;
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+};
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+
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 struct dasd_device {
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 	/* Block device stuff. */
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 	struct dasd_block *block;
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@@ -482,8 +513,10 @@
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 	spinlock_t mem_lock;
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 	void *ccw_mem;
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 	void *erp_mem;
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+	void *ese_mem;
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 	struct list_head ccw_chunks;
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 	struct list_head erp_chunks;
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+	struct list_head ese_chunks;
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 	atomic_t tasklet_scheduled;
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         struct tasklet_struct tasklet;
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@@ -514,6 +547,7 @@
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 	struct dentry *debugfs_dentry;
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 	struct dentry *hosts_dentry;
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 	struct dasd_profile profile;
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+	struct dasd_format_entry format_entry;
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 };
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 struct dasd_block {
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@@ -539,6 +573,10 @@
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 	struct dentry *debugfs_dentry;
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 	struct dasd_profile profile;
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+
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+	struct list_head format_list;
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+	spinlock_t format_lock;
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+	atomic_t trkcount;
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 };
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 struct dasd_attention_data {
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@@ -558,6 +596,7 @@
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 #define DASD_STOPPED_SU      16        /* summary unit check handling */
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 #define DASD_STOPPED_PM      32        /* pm state transition */
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 #define DASD_UNRESUMED_PM    64        /* pm resume failed state */
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+#define DASD_STOPPED_NOSPC   128       /* no space left */
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 /* per device flags */
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 #define DASD_FLAG_OFFLINE	3	/* device is in offline processing */
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@@ -686,6 +725,18 @@
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 	return 0;
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 }
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+/*
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+ * return the callback data of the original request in case there are
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+ * ERP requests build on top of it
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+ */
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+static inline void *dasd_get_callback_data(struct dasd_ccw_req *cqr)
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+{
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+	while (cqr->refers)
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+		cqr = cqr->refers;
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+
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+	return cqr->callback_data;
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+}
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+
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 /* externals in dasd.c */
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 #define DASD_PROFILE_OFF	 0
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 #define DASD_PROFILE_ON 	 1
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@@ -700,7 +751,9 @@
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 struct dasd_ccw_req *
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 dasd_smalloc_request(int, int, int, struct dasd_device *, struct dasd_ccw_req *);
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+struct dasd_ccw_req *dasd_fmalloc_request(int, int, int, struct dasd_device *);
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 void dasd_sfree_request(struct dasd_ccw_req *, struct dasd_device *);
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+void dasd_ffree_request(struct dasd_ccw_req *, struct dasd_device *);
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 void dasd_wakeup_cb(struct dasd_ccw_req *, void *);
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 struct dasd_device *dasd_alloc_device(void);
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@@ -727,6 +780,7 @@
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 int  dasd_sleep_on(struct dasd_ccw_req *);
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 int  dasd_sleep_on_queue(struct list_head *);
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 int  dasd_sleep_on_immediatly(struct dasd_ccw_req *);
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+int  dasd_sleep_on_queue_interruptible(struct list_head *);
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 int  dasd_sleep_on_interruptible(struct dasd_ccw_req *);
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 void dasd_device_set_timer(struct dasd_device *, int);
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 void dasd_device_clear_timer(struct dasd_device *);
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@@ -750,6 +804,8 @@
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 enum uc_todo dasd_generic_uc_handler(struct ccw_device *, struct irb *);
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 void dasd_generic_path_event(struct ccw_device *, int *);
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 int dasd_generic_verify_path(struct dasd_device *, __u8);
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+void dasd_generic_space_exhaust(struct dasd_device *, struct dasd_ccw_req *);
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+void dasd_generic_space_avail(struct dasd_device *);
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 int dasd_generic_read_dev_chars(struct dasd_device *, int, void *, int);
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 char *dasd_get_sense(struct irb *);