From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/s390/block/dasd_int.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 58 insertions(+), 2 deletions(-)
diff --git a/kernel/drivers/s390/block/dasd_int.h b/kernel/drivers/s390/block/dasd_int.h
index de6b960..5d7d35ca 100644
--- a/kernel/drivers/s390/block/dasd_int.h
+++ b/kernel/drivers/s390/block/dasd_int.h
@@ -187,6 +187,8 @@
void (*callback)(struct dasd_ccw_req *, void *data);
void *callback_data;
+ unsigned int proc_bytes; /* bytes for partial completion */
+ unsigned int trkcount; /* count formatted tracks */
};
/*
@@ -268,7 +270,6 @@
struct module *owner;
char ebcname[8]; /* a name used for tagging and printks */
char name[8]; /* a name used for tagging and printks */
- int max_blocks; /* maximum number of blocks to be chained */
struct list_head list; /* used for list of disciplines */
@@ -297,7 +298,7 @@
* e.g. verify that new path is compatible with the current
* configuration.
*/
- int (*verify_path)(struct dasd_device *, __u8);
+ int (*pe_handler)(struct dasd_device *, __u8);
/*
* Last things to do when a device is set online, and first things
@@ -307,6 +308,10 @@
int (*online_to_ready) (struct dasd_device *);
int (*basic_to_known)(struct dasd_device *);
+ /*
+ * Initialize block layer request queue.
+ */
+ void (*setup_blk_queue)(struct dasd_block *);
/* (struct dasd_device *);
* Device operation functions. build_cp creates a ccw chain for
* a block device request, start_io starts the request and
@@ -367,6 +372,26 @@
void (*disable_hpf)(struct dasd_device *);
int (*hpf_enabled)(struct dasd_device *);
void (*reset_path)(struct dasd_device *, __u8);
+
+ /*
+ * Extent Space Efficient (ESE) relevant functions
+ */
+ int (*is_ese)(struct dasd_device *);
+ /* Capacity */
+ int (*space_allocated)(struct dasd_device *);
+ int (*space_configured)(struct dasd_device *);
+ int (*logical_capacity)(struct dasd_device *);
+ int (*release_space)(struct dasd_device *, struct format_data_t *);
+ /* Extent Pool */
+ int (*ext_pool_id)(struct dasd_device *);
+ int (*ext_size)(struct dasd_device *);
+ int (*ext_pool_cap_at_warnlevel)(struct dasd_device *);
+ int (*ext_pool_warn_thrshld)(struct dasd_device *);
+ int (*ext_pool_oos)(struct dasd_device *);
+ int (*ext_pool_exhaust)(struct dasd_device *, struct dasd_ccw_req *);
+ struct dasd_ccw_req *(*ese_format)(struct dasd_device *,
+ struct dasd_ccw_req *, struct irb *);
+ int (*ese_read)(struct dasd_ccw_req *, struct irb *);
};
extern struct dasd_discipline *dasd_diag_discipline_pointer;
@@ -386,6 +411,7 @@
#define DASD_EER_NOPATH 2
#define DASD_EER_STATECHANGE 3
#define DASD_EER_PPRCSUSPEND 4
+#define DASD_EER_NOSPC 5
/* DASD path handling */
@@ -451,6 +477,11 @@
spinlock_t lock;
};
+struct dasd_format_entry {
+ struct list_head list;
+ sector_t track;
+};
+
struct dasd_device {
/* Block device stuff. */
struct dasd_block *block;
@@ -482,8 +513,10 @@
spinlock_t mem_lock;
void *ccw_mem;
void *erp_mem;
+ void *ese_mem;
struct list_head ccw_chunks;
struct list_head erp_chunks;
+ struct list_head ese_chunks;
atomic_t tasklet_scheduled;
struct tasklet_struct tasklet;
@@ -514,6 +547,7 @@
struct dentry *debugfs_dentry;
struct dentry *hosts_dentry;
struct dasd_profile profile;
+ struct dasd_format_entry format_entry;
};
struct dasd_block {
@@ -539,6 +573,10 @@
struct dentry *debugfs_dentry;
struct dasd_profile profile;
+
+ struct list_head format_list;
+ spinlock_t format_lock;
+ atomic_t trkcount;
};
struct dasd_attention_data {
@@ -558,6 +596,7 @@
#define DASD_STOPPED_SU 16 /* summary unit check handling */
#define DASD_STOPPED_PM 32 /* pm state transition */
#define DASD_UNRESUMED_PM 64 /* pm resume failed state */
+#define DASD_STOPPED_NOSPC 128 /* no space left */
/* per device flags */
#define DASD_FLAG_OFFLINE 3 /* device is in offline processing */
@@ -686,6 +725,18 @@
return 0;
}
+/*
+ * return the callback data of the original request in case there are
+ * ERP requests build on top of it
+ */
+static inline void *dasd_get_callback_data(struct dasd_ccw_req *cqr)
+{
+ while (cqr->refers)
+ cqr = cqr->refers;
+
+ return cqr->callback_data;
+}
+
/* externals in dasd.c */
#define DASD_PROFILE_OFF 0
#define DASD_PROFILE_ON 1
@@ -700,7 +751,9 @@
struct dasd_ccw_req *
dasd_smalloc_request(int, int, int, struct dasd_device *, struct dasd_ccw_req *);
+struct dasd_ccw_req *dasd_fmalloc_request(int, int, int, struct dasd_device *);
void dasd_sfree_request(struct dasd_ccw_req *, struct dasd_device *);
+void dasd_ffree_request(struct dasd_ccw_req *, struct dasd_device *);
void dasd_wakeup_cb(struct dasd_ccw_req *, void *);
struct dasd_device *dasd_alloc_device(void);
@@ -727,6 +780,7 @@
int dasd_sleep_on(struct dasd_ccw_req *);
int dasd_sleep_on_queue(struct list_head *);
int dasd_sleep_on_immediatly(struct dasd_ccw_req *);
+int dasd_sleep_on_queue_interruptible(struct list_head *);
int dasd_sleep_on_interruptible(struct dasd_ccw_req *);
void dasd_device_set_timer(struct dasd_device *, int);
void dasd_device_clear_timer(struct dasd_device *);
@@ -750,6 +804,8 @@
enum uc_todo dasd_generic_uc_handler(struct ccw_device *, struct irb *);
void dasd_generic_path_event(struct ccw_device *, int *);
int dasd_generic_verify_path(struct dasd_device *, __u8);
+void dasd_generic_space_exhaust(struct dasd_device *, struct dasd_ccw_req *);
+void dasd_generic_space_avail(struct dasd_device *);
int dasd_generic_read_dev_chars(struct dasd_device *, int, void *, int);
char *dasd_get_sense(struct irb *);
--
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